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R&S UPV-K9/-K91 Operating Manual

1. 27 Minimizing Operator InteractiON ocooocccoocncccnnncnnnno 27 UPP Remote Control occconcconcconccocconcccncnoncnonanonanonanonanonanos 28 MOU VIL I esa r EE E ee nee cg eae aees 28 Report settings cesriscorassicaniii one iii 28 Generate temporary export files ooocccoocccocnocccncconnnnno 28 Generate temporary image files coooccconnccconoconnncnnnnnns 28 Store results of further measurements ccoocccocccccccncccnccncnconcnnnoos 29 Do not change scale for further Meas occcocccocccocnconncconccnnnnnnos 29 Store loaded curve data to results oocccoocccccccccnnccccnccannnnno 29 Enable remote Control oocccocccconcoconnoconccnonononnncannnnancnnanonos 29 A A E o 30 Calibration Devices coocccocccocccoccconiconononnnonononononnonanonanonanonanonanos 30 Microphone Calibration cooocccocnccocncoccnccncnccanonnnnnnnnnnonononnononos 33 Calibration of Artificial Ear oocccoccconncocncocncocncocnccnnconnconncnanononos 34 Calibration of Ear Type 1 oocccocnccccncnocncccnnnncnnnncnonanonnnnnnncncnnnononos 34 Calibration of Ear Type 3 2 Low Leakage oocccocccoccconnconiconocos 34 Calibration of Ear Type 3 2 High Leakage ooccooccccocncoccncno 35 Calibration of Ear Type 3 3 ocoooccccccnccccnnccnnnncnconcnonannnnnnonnnnnnnnnnnnos 36 Calibration of Ear Type 3 4 cccccccccsseccseeecee
2. The receiving noise test produces an overrange error Reduce the gain of the conditioning amplifer in the signal path of the artificial ear re calibrate the artificial ear and re try the test 120 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones ARL for the sending distortion test cannot be adjusted First try a sending test to see if the connection to the mobile is existing If the RLR value is too high the sending sensitivity of the mobile under test may be too low to adjust the ARL If there is no signal in the sending test SLR gt 60 dB check the connection between R amp S CMU200 and mobile If no signal from the artificial mouth is audible during the sending test check the signal path between R amp S UPV and artificial mouth Re calibrate the artificial mouth A measurement using a custom limit curve produces an error Limit files must start with a line containing UPV LIMIT FILE They must be stored as ASCII files with ANSI coding Any other coding will produce an error X and Y values must be separated by a TAB character Using space characters instead of a TAB character will produce an error Other problems of unknown reason If the problem cannot be solved with the information given above the folder D 3GPP can be renamed or deleted At the next start of the application this folder is created anew with all files in default state Attention Store a backup copy of the results file in a differ
3. WCDMA FDD gt AMPS Mobile Station gt GSM Mobile Station IMT 2000 Mobile Station gt TDMA Mobile Station Setting dedicated channel to voice E WCDMA Foo ai Modulation E pa Fr WCDMA roD Connection Control E 2112 4 MHz 10562 1922 4 mHz 9612 0 iE IS F 117 Signal On Voice RMC Signalling RAB Operating Band I EH 2 E 7 Acoustic Measurements on Mobile Phones Selection of the Narrowband AMR Speechcodec Low setting and AMR Bit Rate for the measurements or Decoder Cal and Encoder Cal for the calibration selection is possible only if call is deactivated q Y WCDMA Foo ois Modulation pepa E sl HSDPA WCDMA roD Connection Control E PS CS Signal On Voice Settings Speechcodec Low NB AMR Adaptive Multi Rate NB AMR Selection 4 475kbps 515 kbps 59kbps C 67 kbps 74 kbps 7 95 kbps 10 2 kbps 12 2 kbps 3GPP Ts 26 132 specifies 12 2 kbps bit rate for audio testing with the NB AMR codec Selection of the Wideband AMR Speechcodec Low setting and AMR Bit Rate for the measurements or Decoder Cal and Encoder Cal for the calibration selection is possible only if call is deactivated For the sake of consistency with Wideband AMR tests in GSM 3GPP TS 26 132 specifies 12 65 kbps for audio with the WB AMR codec WCDMA cpp Modulation HSUPA E HSDPA WCDMArpp Connection Control 3 PS CS Signal On Voice Settings Voice So
4. 1 l 20 100 1000 10000 20000 Frequency Hz BY Measured Noise 63 06dBPa A 3GPP HandS Narrow Diffuse field microphone CMU CBT Sample Object Save Curve as Add Enter Load Curve ER Measurement Comment Delete Curve Create Report Close Fig 116 Background noise measurement 1402 0043 12 94 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones If the noise in the test room does not fulfil the requirements it may first be attempted to remove noise sources in the vicinity of the test chamber If no further reduction is possible the sound isolation of the chamber should be improved This can be achieved e g by heavier walls Low frequency noise may possibly be conducted as structure borne sound which may be reduced by an isolating support of the chamber High frequency noise can be caused by a leakage e g at the door and may be reduced by an improved gasket 95 E 7 Acoustic Measurements on Mobile Phones 6 Customizing Measurements 1402 0043 12 Measurements which implement a test case of a standard are locked and cannot be edited However for each measurement type there is also a configurable measurement provided in which the limits can be customized The parameters of the measurements are accessible through the menu item Config Meas Config Meas Sequence Report Options Help Configurable Handset Ambient Noise Rejection with Modulated Multisine Configurable Handsfree Echo loss wit
5. 16 17 18 Basic Safety Instructions The product may be operated only from TN TT supply networks fuse protected with max 16 A higher fuse only after consulting with the Rohde amp Schwarz group of companies Do not insert the plug into sockets that are dusty or dirty Insert the plug firmly and all the way into the socket provided for this purpose Otherwise sparks that result in fire and or injuries may occur Do not overload any sockets extension cords or connector strips doing so can cause fire or electric shocks For measurements in circuits with voltages Vms gt 30 V suitable measures e g appropriate measuring equipment fuse protection current limiting electrical separation insulation should be taken to avoid any hazards Ensure that the connections with information technology equipment e g PCs or other industrial computers comply with the IEC60950 1 EN60950 1 or IEC61010 1 EN 61010 1 standards that apply in each case Unless expressly permitted never remove the cover or any part of the housing while the product is in operation Doing so will expose circuits and components and can lead to injuries fire or damage to the product If a product is to be permanently installed the connection between the protective conductor terminal on site and the product s protective conductor must be made first before any other connection is made The product may be installed and connected only by a licensed electrician
6. Manufacturer m Senal Number m Immediately select this test object Cancel Save and close Fig 76 Window for input of information about a test object we If the checkbox Immediately select this test object is checked the test object associated with the entered data is automatically selected upon closing the window The data of this selected test object will be stored in association with all measurements and appear on the associated reports if DUT information is activated in the report settings A previously entered test object can be selected with Data gt Test object gt Select 54 E 7 5 Measurements 1402 0043 12 Acoustic Measurements on Mobile Phones General Special problems caused by the coding and decoding algorithms of mobile phones are encountered when measuring acoustic characteristics Voice codecs are used to attain the lowest possible data rate Mobile phone voice codecs are optimized for transmitting human speech with low data rate Not the actual voice signals but only the filter and fundamental parameters required for signal reconstruction are transmitted Purely sinusoidal tones normally used for audio measurements cannot be transmitted with such a system Therefore the coder and decoder had initially been excluded from the measurement which required a specially prepared test mobile phone with a specific test interface In modern mobile phones this interface is
7. of the tree view and edit it if necessary For details on the remote control of the R amp S CMU200 see the respective operation manuals Each control instance consists of a block of an arbitrary number of remote commands followed by a status query The query command e g SIGN STAT and the response to wait for e g SYNC or CEST can be specified as well as a timeout for the case that the desired response is not received As the R amp S CMU200 is organized into subsystems for the different mobile phone systems GSM bands the subsystem has to be specified as a parameter Parameter Auto causes the control instance to use the subsystem set with menu item Options gt CMU Subsystem Note that for different GSM bands the remote commands are usually compatible but they are not always compatible between GSM and WCDMA In addition a message to the operator like Please switch on the mobile can be entered in the Operator Instruction field of the parameter window Parameter 1 allows to choose whether the message is shown before or after the block of commands is sent to the R amp S CMU200 When the R amp S CMU200 control instance is executed within a sequence a window opens showing the progress of the control action Note By default the R amp S CMU200 changes its state when switching from local control to remote control or vice versa As a consequence synchronicity registration or an established c
8. 9 Artificial ears to microphone power supply during noise field calibration 10 During the acquisition for the speech quality evaluation a Y microphone is connected to UPV analyzer input 1 via the microphone power supply 11 Output 1 of the USB sound card to UPV analyzer input 2 Prerequisites Reference Microphone Calibration Artificial Mouth Calibration Codec Calibration Noise Field Calibration Measurement Place the reference microphone close to the opening of the UE s main microphone Start the test case from the Measurement or Standard menu The test will start right away in the following processing order 1 2 4 Each Measurement of uplink delay Acquisition of unprocessed signal and processed signal for all ambiances Processing of the acquired signals with simultaneous display of the results according to the progress Deleting of temporary files measurement can be repeated by clicking Repeat current sequence in the status box 87 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Fig 108 Setup for measurement speech quality in presence of background noise The cancel button cancels the complete measurement The button with the crossed speaker symbol stops the playback of the noise and test signal and aborts the current acquisition which can be repeated thereafter Results are S MOS N MOS and G MOS for each ambience and overall average The gr
9. A ae E Fig 6 Query window for selection of applied standard If none is selected in the standard selection window all measurements appear in the Measurement menu If a standard is selected all measurements appear in the Measurement menu but compliant measurements are checked in the menu If Allow only selected measurements is checked non compliant measurements are Suppressed in the Measurement menu Non standard handset and non standard hands free select handset or hands free tests respectively which can be customized The next window is for selection of relevant measurements according to tested device type codec bandwidth test signal and Release of the 3GPP standards TS 26 131 and TS 26 132 All test cases relevant for the selected combination will be offered in the Release menu 14 E Acoustic Measurements on Mobile Phones Select Release han Nenowbend E Artificial voice ITU T P 50 kd Release 10 T5 26 131 10 4 0 T5 26 132 10 3 0 E Fig 7 Query window for the Release menu Select Ear Simulator Fig 8 Query window for selection of artificial ear 1402 0043 12 15 E 7 Acoustic Measurements on Mobile Phones gt Select mouth type JO El LAGF ITU T F 51 HATS ITU T P56 Genero speaker Electric connection Do not show this dialog again Cancel Ok Fig 9 Query window for selection of artificial mouth When the checkbox D
10. column of the data grid To select or unselect a result click in the Select column of the respective row Selected rows show XXXXX unselected rows show in this cell If the results have been sorted alphabetically according to one of the columns by clicking on the respective column header the chronological order can be restored using the context menu item Sort Chronologically Operating Concept R amp S 3GPP mobile phone tests consist of the main user interface window which allows general settings calibration routines data handling automatic sequencing and reporting tools and of test macros for basic measurement types defined in the standards Each measurement type provides a set of parameters R amp S UPV setup files limits etc which are defined in separated measurement definition files one for each test case Attention Do not attempt to modify files with extensions set sup xml cal seq or mdf using a text editor Any change with a text editor may make the files unusable and cause malfunction of the software 17 E 1402 0043 12 Acoustic Measurements on Mobile Phones Options General settings Options Help Standard Select standard at startup Release w Select release at startup Ear Simulator Select ear simulator at startup Artificial mouth Select artificial mouth ak startup System simulator Hands Free settings Activation signal For distort
11. 1402 0043 12 56 E 7 Acoustic Measurements on Mobile Phones Release Config Meas Sequence Report Options Help Select Release Settings F SGPP Sending Handset P 50 3GPP Receiving Handset P S0 nom Yol Rel 10 SGPP Receiving Handset P 50 max Yol Rel 10 3GPP Receiving Handset P S0 min Yol Rel 10 SPP Idle Channel Noise Sending Rel 10 3GPP Idle channel noise receiving nom wol Rel 10 SGPP Idle channel noise receiving max wol Rel 10 3GPP Distortion Sending Rel 9 3GPP Distortion Receiving NB Rel 10 3GPP STMRA P 50 HATS Method Nom Yol Rel 10 3GPP STMR P 50 HATS Method All vol Steps Rel 10 3GPP Stability loss MB Rel 10 3GPP Echo loss handset nom wol Rel 10 3GPP Echo loss handset all vol steps Rel 10 3GPP ANF P 50 Rel 10 3GPP ANF P 50 w 3 dB uncert allow Rel 10 paw ee e vs A AA AA A 0 E Lt Fig 78 Release menu A fourth possibility to start a single measurement is the button Run highlighted as single measurement in the sequence menu see chapter 7 below Functionality and control of the measurement macros 3GPP Sending Handset SLR 9 55 dB Frequency Response Margin 2 98 dB 5 dB lt SLR lt 11 dB Sending sensitivity dB re 1 V Pal 1000 Frequency Hz Y Measured SLR 9 55dB MY Upper limit PY Lower limit 3GPP HandS Narrow Type 3 2 Low Leak 4rt Ea CMU CBT Sample Object Save Curve as Add Enter Load Curve FIs
12. Calibration level increased by 20 dB not validated M Delay start by 4 seconds Cancel Fig 42 Ear calibration window with delayed start The output voltage of the microphone in the ear is measured and the sensitivity displayed with reference to 1 Pa If the voltage measured is below 3 mV or fluctuating by more than 0 2 dB an error message is displayed Possible error sources are for example a switched off 36 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before restarting the calibration The measured reference value is stored in a file on the hard disk and used for all subsequent measurements when the same ear type 3 3 is used as currently selected Reading the DRP ERP Correction Data of the Artificial Ear of Type 3 Call the routine Calibration gt DRP to ERP Correction gt Type 3 3 gt From ITU T P 57 Table 2b This procedure needs only be repeated when the 3GPP directory has been renamed or removed Alternatively it is also possible to load individual DRP ERP correction data from a calibration disk This option is not conformant with the standards Reading the Diffuse Field Equalization Data of the Artificial Ear of Type 3 3 From Release 10 of 3GPP TS 26 132 diffuse field equalization is applied to receiving
13. License Key R amp S UPV K9 installed License Key R amp S UPV K91 installed For use of test signal according to ITU T P 50 and distortion tests with CSS or customer specific activation signal License Key R amp S UPV K9101 or higher must be installed For the use of requirements and test methods according to Release 10 of TS 26 131 and TS 26 132 License Key R amp S UPV K9102 must be installed For the use of requirements and test methods according to Release 11 of TS 26 131 and TS 26 132 License Key R amp S UPV K9103 must be installed License Key R amp S UPV K9102 includes R amp S UPV K9101 License Key R amp S UPV K9103 includes R amp S UPV K9102 and R amp S UPV K9101 For testcases 7 11 and 8 11 of Release 11 echo control characteristics option UPV B3 second analog generator is required For testcases 7 12 and 8 12 of Release 11 speech quality in the presence of ambient noise the following additional equipment and options are required Description Instrument Type Ordering Number R amp S UPV K98 Background noise control software 1424 2003 02 R amp S UPV K101 acc ETSI ES 202 396 1 R amp S UPP B8 Measurements using background 1424 2203 02 noise acc ETSI TS 103 106 and EG 202 396 3 R amp S UPP200 Audio Analyzer two channels 1411 1003 02 R amp S UPP B8 Eight channel generator 1411 2700 02 R amp S UP Z8A 8 channel analog cable for 1411 3206 02 10 E 7 1402 0043 12 Acoustic Measu
14. The graph displays the difference of the room noise sensitivity and the speech sending sensitivity DELSM for information Speech Quality in Presence of Ambient Noise Setup Fig 107 Setup for measurement speech quality in presence of background noise The arrangement of the elements in the block schematic does not reflect the physical setup in the test room See ETSI ES 202396 1 for details on the requirements for the test room and the speaker setup For the speaker positioning the following rules and advice apply e The four full range speakers are to be arranged in a square 86 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Distance of each of the four full range speakers from the center of the HATS is 2m Avoid positioning any speaker in any of the room corners Avoid positioning of speakers including subwoofer or HATS exactly in the room center or at one half one third or one fourth of the room length or width Connections Connect 1 ov oe E O Te 09 LAN socket of UPV to LAN socket of UPP UPP trigger output to UPV trigger input UPP Z8A output 3 to input of front left active speaker UPP Z8A output 4 to input of rear left active speaker UPP Z8A output 5 to input of front right active speaker UPP Z8A output 6 to input of rear right active speaker UPP Z8A configured subwoofer output by default 7 to input of active subwoofer UPV generator output 1 to artificial mouth via drive amplifier
15. a ATE l Echo loss handset nom wol Rel 10 il Echo loss handset all vol steps Rel 1 Free Field equalization l T Ide channel nose recenving mas wol Diffuse field equalization T7 Ide channel nose recelving mas wol Artificial Mouth fica F Ide channel noise rece WB nom ol ite del Malden reticle Fats Idle chan noise rec WE nom wal Bin iat on DTHF Sending MMS Rel 10 a DTHF Sending MMS Rel 10 mil es d MTT D i iseme om Wal Rel P 50 Speech Ref Spectrum Receiving areal Ambient noise Field Sending Handset am Vol Rel 1 New Device Sending Handsfree P n an Select Device Sending For ANF Are Mouth LGP ITU T P 51 Delete Device Art Mouth HATS ITU T F 58 cone ll HF Echo loss all wol st l ae a Me ne DTHF Sending P 50 Re una Spe Show selected devices DTHF Receiving F 50 Electric Connection Fig 43 Submenu for reference speech spectrum calibration Calibration of CMU Speech Codec The calibration of the CMU speech coder and decoder is necessary to be able to calculate absolute loudness Calibration has to be performed only once and must be repeated only if the R amp S CMU200 used is replaced If the R amp S CMU200 is equipped with model 14 of the Link Handler R amp S CMU B21 GSM as well as WCDMA use the same paths Calibration of the coder is therefore identical for both operating modes and need not be repeated when switching from GSM to WCDMA or vice versa If GSM an
16. consecuencia de muerte El manejo de bater as y acumuladores con electrolitos alcalinos p ej celdas de litio debe seguir el est ndar EN 62133 1 2 No deben desmontarse abrirse ni triturarse las celdas Las celdas o bater as no deben someterse a calor ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y bater as deben mantenerse limpias y secas Limpiar las conexiones sucias con un pa o seco y limpio Las celdas o bater as no deben cortocircuitarse Es peligroso almacenar las celdas o bater as en estuches o cajones en cuyo interior puedan cortocircuitarse por contacto rec proco o por contacto con otros materiales conductores No deben extraerse las celdas o bater as de sus embalajes originales hasta el momento en que vayan a utilizarse Las celdas o bater as no deben someterse a impactos mec nicos fuertes indebidos En caso de falta de estanqueidad de una celda el l quido vertido no debe entrar en contacto con la piel ni los ojos Si se produce contacto lavar con agua abundante la zona afectada y avisar a un m dico En caso de cambio o recarga inadecuados las celdas o bater as que contienen electrolitos alcalinos p ej las celdas de litio pueden explotar Para garantizar la seguridad del producto las celdas o bater as solo deben ser sustituidas por el tipo Rohde amp Schwarz correspondiente ver lista de recambios Las bater as y celdas deben reciclarse y no deben tirarse a la bas
17. debidamente para evitar en caso de un accidente lesiones u otra clase de da os Eliminaci n protecci n del medio ambiente 1 Los dispositivos marcados contienen una bater a o un acumulador que no se debe desechar con los residuos dom sticos sin clasificar sino que debe ser recogido por separado La eliminaci n se debe efectuar exclusivamente a trav s de un punto de recogida apropiado o del servicio de atenci n al cliente de Rohde amp Schwarz Los dispositivos el ctricos usados no se deben desechar con los residuos dom sticos sin clasificar sino que deben ser recogidos por separado Rohde amp Schwarz GmbH amp Co KG ha elaborado un concepto de eliminaci n de residuos y asume plenamente los deberes de recogida y eliminaci n para los fabricantes dentro de la UE Para desechar el producto de manera respetuosa con el medio ambiente dir jase a su servicio de atenci n al cliente de Rohde amp Schwarz Si se trabaja de manera mec nica y o t rmica cualquier producto o componente mas alla del funcionamiento previsto pueden liberarse sustancias peligrosas polvos con contenido de metales pesados como p ej plomo berilio o niquel Por eso el producto solo debe ser desmontado por personal especializado con formacion adecuada Un desmontaje inadecuado puede ocasionar danos para la salud Se deben tener en cuenta las directivas nacionales referentes a la eliminacion de residuos En caso de que durante el trato del producto se
18. 4500 m sobre el nivel del mar Se aplicar una tolerancia de 10 sobre el voltaje nominal y de 5 sobre la frecuencia nominal Categor a de sobrecarga el ctrica 2 indice de suciedad 2 No sit e el producto encima de superficies veh culos estantes o mesas que por sus caracter sticas de peso o de estabilidad no sean aptos para l Siga siempre las instrucciones de instalaci n del fabricante cuando instale y asegure el producto en objetos o estructuras p ej paredes y estantes Si se realiza la instalaci n de modo distinto al indicado en la documentaci n del producto se pueden causar lesiones o en determinadas circunstancias incluso la muerte No ponga el producto sobre aparatos que generen calor p ej radiadores o calefactores La temperatura ambiente no debe superar la temperatura m xima especificada en la documentaci n del producto o en la hoja de datos En caso de sobrecalentamiento del producto pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte Seguridad el ctrica Si no se siguen o se siguen de modo insuficiente las indicaciones del fabricante en cuanto a seguridad el ctrica pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte 1 Antes de la puesta en marcha del producto se deber comprobar siempre que la tensi n preseleccionada en el producto coincida con la de la red de alimentaci n el ctrica Si es
19. 47 3GPP HHHF Receiving MMS Min Yol Rel PASS Receiving Loudness Ratir es NP 17 22012 17 11 44 IGPPUMHE Receiving MMS Nom Vol Rel Fall 4 3GPP Binaural HeadS Wide HATS Type 3 3 Art Ear CMU CBT HTC Report last measurement Fig 10 Main window Report last SeOUETICE Receiving midness e b Handset NB P 50 Release 10 cw Initially the data grid in the centre of the screen which shows the result overview is empty The screenshot in Fig 10 shows an example after a number of measurements have been made By clicking with the right mouse button on the data grid a context menu opens which allows to create a report of a result marked by a solid triangle in the respective row header edit the comment for a marked result to delete the marked result or to export one of the curves in the marked result graph to an ASCII format 16 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones J Create Report for Marked Row 5 Edit Comment of Marked Row 50 Delete Marked Row AO nom ol Save Curve of Marked Row as E aa Report Selection Report Selected Results Sort Chronologically Select all 5 31 36 3GPP STMR P 50 HATS sec i a 5 33 42 3GPP STMR MMS HAT IN Fig 11 Context menu of the result data grid Fig 12 A triangle in the row header indicates a marked row The Report Selection submenu allows to report on or delete a selection of results which have been marked in the Select
20. 88 E 7 Acoustic Measurements on Mobile Phones Notes on Hands Free Measurements General Remarks The standards 3GPP TS 26 131 and TS 26 132 define requirements and test specifications for the tests of the acoustic behaviour of the mobile phone in this mode but not all details are specified yet R amp S UPV K91 3GPP Mobile Phone tests provide test cases for handheld hands free and desktop hands free mode with narrow band and wideband speech Test specifications and limits for hands free car kits are the same as for desk top hands free terminals Hands free tests with R amp S UPV K91 support the use of either artificial mouth according to ITU T P 51 together with a free field measurement microphone or alternatively the use of a HATS with type 3 3 or 3 4 artificial ear and artificial mouth according to ITU T P 58 Test Setup All tests must be performed in an anechoic room Background noise must be less than 24 dBSPL A Furthermore the room should be big enough and its walls should have sufficient absorption to provide nearly free field conditions at the hands free reference point Not all test boxes which are appropriate for handset tests can be used for hands free measurements If a free field microphone with a discrete P 51 mouth is used it should be configured to the Handheld hands free UE as per Figure 58 for receiving measurements and Figure 59 for sending measurements The measurement instrument should be located at a distance d
21. For permanently installed equipment without built in fuses circuit breakers or similar protective devices the supply circuit must be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock Any object that is not designed to be placed in the openings of the housing must not be used for this purpose Doing so can cause short circuits inside the product and or electric shocks fire or injuries Unless specified otherwise products are not liquid proof see also section Operating states and operating positions item 1 Therefore the equipment must be protected against penetration by liquids If the necessary precautions are not taken the user may suffer electric shock or the product itself may be damaged which can also lead to personal injury Never use the product under conditions in which condensation has formed or can form in or on the product e g if the product has been moved from a cold to a warm environment Penetration by water increases the risk of electric shock Prior to cleaning the product disconnect it completely from the power supply e g AC supply network or battery Use a soft non linting cloth to clean th
22. L st 0 0 dB L st 0 0 dB L st 0 0 dB Outer double talk frames e s HA Residual delay 31 samples Inner single talk frames A Del Snd 141 0 ms Del Rev 146 0 ms HATS Type 3 3 Art Ear CMU CBT Enter Save Data as Load Data kiea es a a Ln Delete Result Create Report Close Fig 94 Result screen of the Echo Control Characteristics test Interpretation of the results A positive level difference means that the level of the signal sent by the mobile is higher with simultaneous downlink speech than without This is an indication of echo Short duration category E indicated short echo bursts Long duration category G indicates continuous echo A negative level difference is an indication of clipped uplink speech Short duration category B indicates short clipping e g at the start of sentences or words 1402 0043 12 19 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Medium duration category C indicates loss of syllables Long duration category D indicates continuous high attenuation Sending Distortion The SINAD signal to noise and distortion ratio in the transmit path is measured as a function of the sound level A pulsed sinusoidal tone with a pulse length of approx 360 ms is used for the measurement For tests according to up to release 8 narrowband and up to release 7 wideband the frequency of the tone is 1015 Hz For measurements
23. MMS activation signal is issued before each measurement to activate the VAD voice activity detector of the mobile under test To avoid an impact of the activation signal on the result due to the processing delay in the transmission chain the test routine comprises a delay measurement The start of the analysis is delayed against the start of the test signal by the measured delay time gt 3GPP Distortion Sending Wide Rel 8 15 ES Q Sending signal to distortion ratio dB Sending signal to distortion ratio dB 158 Pass 0 0 25 20 10 0 10 200 1000 2000 Sending signal level dBPa Frequency Hz E Measured m Lower Limit N Measured A Lower Limit HATS Type 3 3Art Ear CMU CBT Sample Test Object Save Curve as Enter EEE Load Curve FTE Me Esa Comment Delete Curve Create Report Close Fig 96 Sending distortion measurement for wideband according to release 8 1402 0043 12 Tf E 7 1402 0043 12 Acoustic Measurements on Mobile Phones From release 9 version 9 2 of 3GPP TS 26 132 a CSS activation Signal is recommended for test of narrowband and wideband terminals Alternatively an activation signal specified by the terminal manufacturer may be used Update key UPV K9101 or UPV K9102 is required for this version of the distortion test Fig 97 Recommended activation signal according to version 9 2 The UPV K9x software provides the CSS activation signal as a default However
24. Mobile Phones Select Calibrated Devices ME Usage Manufacturer Type Serial No Date and Time Calib value File name Type 3 2 Low Leak Art Ear B amp K 4195 1708754 04 22 2009 14 25 null D 3GPP Cal33 EE Type 3 2 Low Leak Art Ear Default 07 13 2006 17 57 null D 43GPPCal331 CN Type 3 2 Low Leak Art Ear G F A S RADO56 amp RA 26740 amp 4636 04 22 2009 14 27 null D 3GPP4Cal33l gt Type 3 2 low leak art ear y Select Cancel Y Fig 40 Selection window for particular device type Subsequently this procedure may be repeated for other categories Finally all selections are confirmed by clicking the Ok button A calibrated device may be deleted using menu item Calibration gt Delete device The device to be deleted must not be selected for use Another device of the same type must be selected before the device can be deleted Select the device to be deleted the same way as in the preceding paragraph the device to be used Note that all calibration information is deleted for this device except result data required for reporting previous test results All calibration data are stored on the R amp S UPV hard disk and are therefore automatically available again after every restart The calibration values for the R amp S UPV K91 option are stored independently of other options Calibration values for 3GPP tests and CDMA2000 tests are handled separately All calibration rout
25. P 50 min vol SGPP Idle channel noise sending 36PP Idle channel noise receiving nom vol SGPP Idle channel noise receiving max vol SGPP Distortion sending Rel 4 5 SPP Distortion sending Rel 6 SPP Distortion Sending Rel 9 3GPP Distortion receiving 3GPP Distortion Receiving Rel 9 SPP STMR F 50 LRGP Method SGPP STMR P 50 LRGP Method Rel 8 2 SGPP STMR P 50 HATS Method Mom vol SPP STMRP S0 HATS Method Nom wol Rel 8 249 SPP STMR P 50 HATS Method All vol Steps 3GPP STMR P 50 HATS Method All vol Steps Rel 8 2 9 3GPP Stability margin SPP Echo loss with training SGPP Ambient Noise Rejection P 50 3GPP AMA P SO w 308 uncertainty allowance Pass ALA 12 0 dB PASS Receiving Loudness Ratir PASS Receiving Loudness Ratir Fall Parental audness Patir F ole Test Mobile ei WE P 50 Release 10 Tr Fr F0 F ES IE IS F F F F F FE T F F F E F F F t F F0 F FRE T F Standards menu with submenu for narrow band handset tests according to 3GPP TS 26 132 using artificial voice according to ITU T P 50 The menu Release offers all applicable test cases for a selected combination of UE device type speech codec bandwidth test signal and release of the 3GPP test specifications Item Select Release opens the selection window of Fig 7 Sub menu Settings has the same test case entries and allows to open the editing window of Fig 66
26. PP Comment Delete Curve Create Report Fig 79 Example of a measurement window When a measurement macro is started e g from the Measurement menu the standardized measurement is immediately executed With a single measurement the window of the measurement macro stays open after the measurement is terminated At that time the following functionality is available 1402 0043 12 57 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones aon Qutb Unzaga Show Cursor Change Scale Data Point Size Comment Save Screenshot as Fig 80 Context menu of the graph window Zooming When the Shift key on the keyboard is pressed the mouse cursor changes to the zoom cursor When the left mouse button is pressed a rectangle can be marked in the graph As soon as the left mouse button is released the graph is zoomed into the area of the marked rectangle Zoom Out in the graph context menu reverses the last zooming step Unzoom zooms completely out to the original scaling Changing the Scale of the Graph Change Scale in the context menu opens a window in which the upper and lower bounds of both axes can be entered by numbers gt Change Scale OP ES Minimum Masimurn 1 00 00 10000 me Y Minimum Y Masmum 50 00 0 00 rea o ce Fig 81 Window for changing the scale of the graph Cursor When the item Show Cursor is marked in the graph context menu a cursor is displ
27. according to later releases the frequency is 1020 Hz see also table 12 below At these frequencies coding yields a sufficiently stable output signal Voice activity detection continues to be active in the mobile phone under test due to this pulsating signal The mobile phone under test is installed in the LRGP or on the HATS The test signal is generated with the artificial mouth at the MRP mouth reference point and the SINAD value of the received signal is measured at the R amp S CMU200 decoder output The acoustic reference level ARL is defined as the sound pressure which creates a signal level of 10 dBm0 in the transmit channel An automatic routine varies the sound pressure at the artificial mouth until the desired level is attained This value is then used as a reference for determining the SINAD value versus level The SINAD value is measured at sound pressures between 35 dB and 10 dB relative to the acoustic reference level ARL and compared with the limits specified in table 7 of 26 131 of 3GPP Signal processing of a modern mobile phone comprises a voice activity detector which determines whether a voice signal is present or whether the sending signal just comprises background noise With such mobile phones the sending distortion test according to 3GPP TS 26 132 before release 6 0 0 may be failed at low levels because the 1 kHz sinewave test signal is classified as background noise and suppressed For this reason the sendi
28. before first use the signal has to be imported using Options gt Activation Signal gt Import see Chapter 2 This step checks the conditions on the wav file and calculates the active level of the signal With the same menu item also other wave files can be imported for use as activation signal The wav files must be mono with 48 kHz sampling frequency and have a duration of 10 seconds or less For the sending direction the activation signal must be pre equalized according to the inverse frequency response of the artificial mouth This can be done during import of the wav file After a re calibration of the artificial mouth the equalization has become obsolete and has to be re done The macro for the test case automatically detects an obsolete equalization of the activation signal and does a new equalization before the test is started If more than one activation signal is imported at the same time the signal to be used can be globally chosen with menu item Options gt Activation Signal gt Select In addition the measurement definition for this test case has a parameter to specify the file name without extension of the activation signal to be used lf this parameter is provided it overrides the global choice of the activation signal Thus the test can be repeated several times within a sequence using different activation signals The test macro for distortion tests with activation signals from wav files also provides a spec
29. buttons Move up and Move down and deleted from the sequence with the Delete X button For non standard measurements which allow to change parameters like limit curves it is possible to edit the parameters before appending the measurement to the sequence This is done by clicking the button Edit and append It is for example possible to assemble a test sequence which contains stability margin tests with different loop gains A sequence should be run with option Show operator instructions disabled This avoids interruption of the execution If a message to the operator is to be inserted into the sequence on purpose e g Set user 101 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones volume control to maximum the items provided in the tree view under Messages and Control may be used Such a message will stop the execution of the sequence until it is closed by acknowledgement of the operator Remote Control of R amp S CMU200 within a Sequence It is possible to remote control radiocommunication tester R amp S CMU200 from the R amp S UPV within an automatic test sequence for example to wait for a mobile to register or for originating a call to the mobile First the connection interface to the R amp S CMU200 has to be set up using menu item Options gt CMU remote control To insert a control instance into a sequence choose one of the examples offered in branch Messages and Control
30. codec calibration 3GPP Echo loss with training ioj x TCLw gt 70 dB Echo path gain dB g g amp 8 2i co 5 1000 Frequency Hz Y Measured TCLw gt 70 dB 3GPP HandS Narrow Type 3 2 Low Leak 4rt Ea CMU CBT Sample Object Save Curve as Enter Save Cuve a Load Curve mi Cae M AN Comment Delete Curve Create Report Close Fig 89 Typical result of echo loss measurement 1402 0043 12 71 E 7 Acoustic Measurements on Mobile Phones In addition the attenuation of the echo path is displayed as a curve 3GPP TS 26 131 specifies an echo loss of at least 46 dB mobile phones with good echo cancellers can meet this requirement Since the microphone of the mobile phone under test also picks up any side noise and treats it like an echo it is essential that the test chamber is well shielded against external noise Stability Margin The stability margin is measured to test the susceptibility of the phone to acoustic feedback and instability For the test the telephone is placed on an even hard board with the receiver and microphone pointing downwards Eix Listen for audible oscillation Press softkey corresponding to your observation No Standard Type 3 2 Low Leak Art Ea CMU CRTU Sample test object Oscillation Oscillation not Enter suite audible Change Scale Create Report Close Fig 90 Window during stability margin test A loop is closed in the R amp S UP
31. documentation the word ATTENTION is used synonymously These signal words are in accordance with the standard definition for civil applications in the European Economic Area Definitions that deviate from the standard definition may also exist in other economic areas or military applications It is therefore essential to make sure that the signal words described here are always used only in connection with the related product documentation and the related product The use of signal words in connection with unrelated products or documentation can result in misinterpretation and in personal injury or material damage 1171 0000 42 07 Page 2 Basic Safety Instructions Operating states and operating positions The product may be operated only under the operating conditions and in the positions specified by the manufacturer without the product s ventilation being obstructed If the manufacturer s specifications are not observed this can result in electric shock fire and or serious personal injury or death Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed 1 Unless otherwise specified the following requirements apply to Rohde amp Schwarz products predefined operating position is always with the housing floor facing down IP protection 2X use only indoors max operating altitude 2000 m above sea level max transport altitude 4500 m above sea level A tolerance
32. floor measurement Repeat current sequence Fig 56 Window during running measurement Preparatory Measurements for Delay Measurement Before the delay measurement is performed additional plausibility checks are carried out at each speaker to ensure that the wiring is correct and that the sound pressure level is high enough Measurement of Sound Pressure The unweighted sound pressure level should reach at least 80 dBspl at normal drive level Level too low on UPY channel 2 70 2 dBspl Increase amplifier gain for Speaker Front Right by at least 9 6 dE concl_ Fig 57 Message for insufficient level If this sound pressure is not reached an error message appears which cannot be ignored After the gain factor has been increased the measurement can be repeated Measurement of Level Change at Microphone Amplifier Output In the case of an increase in UPP output level and the expected change in sound pressure at the connected speakers the level measured at the microphone amplifier must be changed by the same amount CT a x Level sweep Failed on UPY channel 2 Speaker Front Right not connected to UPF generator channel 5 or switched off Right Artificial Ear not connected to UPY analyzer channel 2 or power supply off Cancel Fig 58 Message for insufficient sound pressure level increase 47 E 1402 0043 12 Acoustic Measurements on Mobile Phones If the amplifier output does not change with the
33. from the results overview data grid in the main window by marking the rows with the desired results in the Select column and choosing item Report Selection gt Report Selected Results see Fig 11 Rows marked with XXXXX in the Select column will be added to the report The selection can be toggled by clicking into the respective Select cells Note that another cell must be clicked before the same cell can be toggled again Preview Window ETT lolx wale gt Wl 12 whole Page Main Report 3GPP Sending Handset wideband Tabat 0423 2008 1630 18 Ortis Narda Seria Marri Comment Yerdict 10 Current Page No 1 Total PageNo 1 Zoom Factor Whole Page Fig 126 Report preview window The main area of the preview window shows a preview of the report as it will be printed or appear in an exported PDF file If the report comprises more than one page the pages can be browsed using the buttons HN 4 H To open the print dialog for installed windows printers click 1402 0043 12 106 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones To open a file selector for export of the report to PDF WORD EXCEL or Rich Text format click The scale of the document in the preview can be adjusted with Ay e Page Width a Whole Page 400 00 2000 1500 Fig 127 Scale menu of the preview window Storing and Loading Curves Measured curves can be stored from and loaded into t
34. in a subfolder of D 3GPP with the same name as the sequence The sequence window opens with the specified sequence loaded The sequence can then be edited and or run Running a Sequence When the softkey Start sequence is pressed all checked measurements in the right list box are executed in sequence The state of the checkboxes may be altered by marking a measurement and then clicking on the checkbox A running sequence may be interrupted with one of the buttons in the measurement control window which is visible while a measurement is 103 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones running Cancel and continue sequence cancels the currently running measurement and resumes execution of the sequence with the next measurement Cancel and stop sequence aborts both running measurement and sequence Stop sequence after this measurement completes the running measurement and stops the sequence afterwards Measuring Distortion at 45 dE mb Cancel and continue sequence Cancel and stop sequence Stop sequence after this measurement Fig 124 Measurement control window Running a Single Measurement out of a Sequence A single measurement of a sequence may be started by highlighting the measurement in the right checked list box and clicking the button Run Highlighted Reporting on Sequence Results A report on all executed measurements of the last run sequence is prepared and displ
35. information see the data sheet and the product documentation Safety labels on products The following safety labels are used on products to warn against risks and dangers Direct current DC 1171 0000 42 07 Page 1 Basic Safety Instructions Protective conductor terminal Direct alternating current DC AC Ground Device fully protected by double reinforced insulation Ground terminal EU labeling for batteries and accumulators For additional information see section Waste disposal Environmental protection item 1 Be careful when handling electrostatic sensitive gt EU labeling for separate collection of electrical devices and electronic devices For additonal information see section Waste disposal Environmental protection item 2 Warning Laser radiation For additional information see section Operation item 7 Signal words and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers Indicates a hazardous situation which if not avoided will result in death or DANGER serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided could result in minor or moderate injury Indicates information considered important but not hazard related e g NOTICE messages relating to property damage In the product
36. las siguientes informaciones de seguridad antes de usar el producto y respetarlas durante el uso del producto Deber n tenerse en cuenta todas las dem s informaciones de seguridad como p ej las referentes a la protecci n de personas que encontrar n en el cap tulo correspondiente de la documentaci n del producto y que tambi n son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que distribuye el grupo de empresas Rohde amp Schwarz bajo la denominaci n de producto entre ellos tambi n aparatos instalaciones asi como toda clase de accesorios Los datos espec ficos del producto figuran en la hoja de datos y en la documentaci n del producto Se alizaci n de seguridad de los productos Las siguientes se ales de seguridad se utilizan en los productos para advertir sobre riesgos y peligros Significado Significado Aviso punto de peligro general Tensi n de alimentaci n de PUESTA EN 7 MARCHA PARADA Observar la documentacion del producto Atencion en el manejo de dispositivos de peso Indicaci n de estado de espera standby elevado Peligro de choque el ctrico Corriente continua DC A Advertencia superficie caliente Corriente alterna AC Conexi n a conductor de protecci n Corriente continua Corriente alterna DC AC Conexi n a tierra El aparato est protegido en su totalidad por un aislamiento doble reforzado Conexi n a masa Distintivo de la UE para b
37. limit template is shifted to be centred with respect to the displayed absolute sensitivity The margins of the measured frequency response to the upper and lower limit lines are calculated separately and then the whole template is shifted such that the resulting margins to upper and lower limit are equal Then another limit check is performed lf the shifted curve is now within the limit lines PASS is output otherwise FAIL is displayed The limit check is performed at each measured frequency If the measured value and 64 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones the end point of a limit line are not at the same frequency it may happen that the trace slightly crosses a corner of the limit line although there are no limit violations The remaining margin is displayed A negative margin shows the amount of limit violation Receiving Loudness Rating The receiving loudness rating RLR takes into account the absolute loudness in the receive direction and weights the spectral components in compliance with the difference between an average speech spectrum and the normal threshold of hearing in quiet of the average human ear To this end the frequencies Hz of bands 4 to 17 narrowband or bands 1 to 20 wideband resp are evaluated according to table 1 of ITU T P 79 see table 2 The sensitivity at each frequency is specified as the ratio dBPa V calculated from the level difference between the level at the network i
38. manejo del producto Antes de desplazar o transportar el producto lea y tenga en cuenta el cap tulo Transporte Como con todo producto de fabricaci n industrial no puede quedar excluida en general la posibilidad de que se produzcan alergias provocadas por algunos materiales empleados los llamados al rgenos p ej el n quel Si durante el manejo de productos Rohde amp Schwarz se producen reacciones al rgicas como p ej irritaciones cut neas estornudos continuos enrojecimiento de la conjuntiva o dificultades respiratorias debe avisarse inmediatamente a un m dico para investigar las causas y evitar cualquier molestia o da o a la salud Antes de la manipulaci n mec nica y o t rmica o el desmontaje del producto debe tenerse en cuenta imprescindiblemente el cap tulo Eliminaci n protecci n del medio ambiente punto 1 Ciertos productos como p ej las instalaciones de radiocomunicaci n RF pueden a causa de su funci n natural emitir una radiaci n electromagn tica aumentada Deben tomarse todas las medidas necesarias para la protecci n de las mujeres embarazadas Tambi n las personas con marcapasos pueden correr peligro a causa de la radiaci n electromagn tica El empresario operador tiene la obligaci n de evaluar y se alizar las reas de trabajo en las que exista un riesgo elevado de exposici n a radiaciones Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias t xicas ga
39. maxima to be averaged can occur at different frequencies during averaging This version of the idle channel noise test requires update key UPV K9102 gt 3GPP Idle channel noise receiving nom Yol Rel 10 Spectrum at Art Ear dBPa A Frequency Hz x Measured 1 A Measured 2 Ay Measured 3 A Measured 4 x Measured 5 HATS Type 3 3 Art Ear CMU CBT Old UMTS Mobile Save Curve as Enter T Seve Cuve as Load Curve BARE M ae een Delete Curve Create Report Fig 105 Receiving noise measurement according to release 10 84 E 1402 0043 12 Acoustic Measurements on Mobile Phones This measurement makes high demands on the sound insulation of the test chamber and the S N ratio of the measuring microphone including preamplifier in the artificial ear A comparison measurement with the test mobile phone switched off or without a DUT shows the measurement reserves of the test equipment Due to the low inherent noise of the Audio Analyzer R amp S UPV measurements can be made to about 80 dBPa A at 0 dB microphone gain and even to lower values when a higher microphone gain is set Ambient Noise Rejection Ambient noise rejection describes the weighted ratio of voice signal transmission to transmission of ambient noise An ANR value gt 0 dB means that voice as the useful signal is transmitted more loudly than any ambient noise The minimum requirement according to 3GPP TS 26 131 is ANR gt 0 dB A value gt 3
40. necesario modificar el ajuste de tensi n tambi n se deber n cambiar en caso dado los fusibles correspondientes del producto Los productos de la clase de protecci n con alimentaci n m vil y enchufe individual solamente podr n enchufarse a tomas de corriente con contacto de seguridad y con conductor de protecci n conectado Queda prohibida la interrupci n intencionada del conductor de protecci n tanto en la toma de corriente como en el mismo producto La interrupci n puede tener como consecuencia el riesgo de que el producto sea fuente de choques el ctricos Si se utilizan cables alargadores o regletas de enchufe deber garantizarse la realizaci n de un examen regular de los mismos en cuanto a su estado t cnico de seguridad Si el producto no est equipado con un interruptor para desconectarlo de la red o bien si el interruptor existente no resulta apropiado para la desconexi n de la red el enchufe del cable de conexi n se deber considerar como un dispositivo de desconexi n El dispositivo de desconexi n se debe poder alcanzar f cilmente y debe estar siempre bien accesible Si p ej el enchufe de conexi n a la red es el dispositivo de desconexi n la longitud del cable de conexi n no debe superar 3 m Los interruptores selectores o electr nicos no son aptos para el corte de la red el ctrica Si se integran productos sin interruptor en bastidores o instalaciones se deber colocar el interruptor en el nivel de
41. of 10 shall apply to the nominal voltage and 5 to the nominal frequency overvoltage category 2 pollution severity 2 2 Donot place the product on surfaces vehicles cabinets or tables that for reasons of weight or stability are unsuitable for this purpose Always follow the manufacturer s installation instructions when installing the product and fastening it to objects or structures e g walls and shelves An installation that is not carried out as described in the product documentation could result in personal injury or even death 3 Do not place the product on heat generating devices such as radiators or fan heaters The ambient temperature must not exceed the maximum temperature specified in the product documentation or in the data sheet Product overheating can cause electric shock fire and or serious personal injury or even death Electrical safety If the information on electrical safety is not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the AC supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 Inthe case of products of safety class with movable power cord and connector operation is permitted only on sockets with a protective conductor contact and
42. of level differences and their duration into categories 74 E 7 Acoustic Measurements on Mobile Phones Level difference AL Duration D Al 4 dB lt AL lt 4 dB Full duplex and full transparency A2 15 dB lt AL lt 4 dB Full duplex with level loss in Tx AL lt 15 dB Very short clipping AL lt 15 dB 25 ms lt D lt 150 ms Short clipping resulting in loss of syllables AL lt 15 dB D gt 150 ms Clipping resulting in loss of words EE AL gt 4 dB Very short residual echo AL gt 4 dB 25 ms lt D lt 150 ms Echo bursts AL gt 4 dB D gt 150 ms Continuous echo Table 3 Description of categories For each category the ratio of frames in this category to the total number of frames is given as well as the average level difference ME Es gt 3GPP Echo Control Characteristics NB Rel 11 Single Near End Words Continuous Double T alk Cidt 0 2 Lidt 5 2 dB Cist 2 6 40 35 L st 10 9dB Cidt 0 7 Lidt 4 0 dB Cist 21 1 L st 10 4 dB Cfdt 0 0 L dt 0 0 dB C st 30 3 30 sala L st 7 3 dB 10 G Cld 99 1 PH Lidt O0 dB pue Cist 46 0 oat L st 1 8 dB coe C dt 0 0 L dt 0 0 dB Double talk levels C st 0 0 Z Single talk levels L st 0 0 dB le Cid 0 0 C dt 0 0 C dt 0 0 E E Lidt 0 0 dB L dt 0 0 dB Lidt 0 0 dB E o Cist 0 0 C st 0 0 C st 0 0 Categories M
43. release 10 of 3GPP TS 26 132 the sidetone delay is measured by cross correlation between the electric input signal to the artificial mouth and the electric signal from the artificial ear The sidetone delay is defined as difference between first and second maximum of the cross correlation envelope Test signal is a composite source signal CSS according to ITU T P 501 which consists of a voiced part and a pseudo noise multisine part Before the test the test signal is offline filtered according to the mouth speaker equalization curve obtained during mouth calibration This offline filtering is only performed when the valid speaker equalization curve is newer than the file with the filtered test signal 1402 0043 12 69 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones 3GPP Sidetone Delay Rel 10 Envelope of Cross Correlation 2 20 Delay ms Measured Delay 1 63 ms HATS Type 3 3 Art Ear CMU CBT Example Test Mobile Save Curve as Enter Seve Cuve a Load Curve ie tse Mea Ee a Snt Comment Delete Curve Create Report Close Fig 87 Typical sidetone delay result according to release 10 Roundtrip Delay From Release 11 of 3GPP TS 26 131 and TS 26 132 the measurement of the roundtrip delay is required The roundtrip delay is defined as the sum of the contributions of the UE under test to the uplink and downlink end to end delay To obtain the roundtrip delay value the end to end delay c
44. room or 3 continue the measurement with this check being finally failed Choose Retry once or Retry twice for unattended operation 2 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones UPP Remote Control This dialog allows to detect and connect a UPP with option UPP B8 on the LAN to be used as playback system for the background noise generation UPP TCPVIP UPF host name or IF address find devices Cancel Fig 35 Window for connecting to a UPP on the LAN A click on the find devices button searches the local area network for audio analyzers and fills the combobox next to the button with the computer names and IP addresses of the found devices Select the appropriate instrument in the combobox and click Ok Input Switcher Input Switcher allows to configure the use of a R amp S UPZ input switcher connected to the R amp S UPV RS 232 port to switch analyzer input 2 between sending tests and binaural receiving tests Switcher Settings E Use UFZ input switcher to connect second artificial ear for binaural measurements and calibration UFZ output connected to analyzer input 2 Decoder output connected to UFZ input no 1 2nd artificial ear connected to UPS input no 2 ca TH HA Fig 36 Switcher window Report settings Report settings allows to define the type of information which should appear in the reports For details on repor
45. set is available for the used noise field If this is the case equalization of this noise field can be skipped Here the Cancel button does not stop the complete calibration procedure but only that of the current and displayed noise field Noise calibration E Do vou want bo update the Calibration using Pink Noise now ue OK Eo calibrate this ambiance CANCEL to skip calibration Cancel Fig 70 Query window for each noise field calibration By skipping all noise fields all of the noise fields with the current acoustics are checked without changing the calibration data set and a corresponding report is generated Equalization and level adjustment are largely performed without input from the user The only time input is required is if errors occur and the 91 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones user is asked what should happen next These decisions can be preset in the configuration dialog box so that equalization can then be carried out unsupervised without any input from the user Level Adjustment Level adjustment is performed with a maximum of five iteration steps Normally two steps are sufficient to achieve the desired level tolerance 2 0 1 dB can be set in the configuration dialog box This number may not be sufficient for the subwoofer especially in the case of sounds with weak bass A message is then displayed where the user can choose whether to accept the specified level deviat
46. specified according to table 1 of 3GPP TS 26 131 The absolute sensitivity is not yet taken into account The valid limit lines depend on the release of the specification and are different for narrowband and wideband speech The offset of the measured frequency response to the upper or lower limit line is calculated and then the whole limit template is shifted to be centered with respect to the measured curve Then another limit check is performed If the shifted curve is now within the limit lines PASS is output otherwise FAIL is displayed The limit check is performed at each measured frequency If the measured value and the end point of a limit line are not at the same frequency it may happen that the trace slightly crosses a corner of the limit line although there are no limit violations The remaining margin is displayed A negative margin shows the amount of limit violation Sending Loudness Rating The sending loudness rating SLR takes into account the absolute loudness in the transmit direction and weights the tones in compliance with the average speech spectrum and the normal sensitivity of the average human ear To this end the frequencies Hz of bands 4 to 17 narrowband or bands 1 to 20 wideband resp are evaluated according to table 1 of ITU T P 79 61 E 7 Acoustic Measurements on Mobile Phones Table 2 Frequencies Hz of bands 1 to 20 acc to table 3 of ITU T P 79 EE A a aa f Hz 2500 3150 4000 5000 63
47. the generator signal started The signal used as the generator signal is always the signal which is also used for subsequent equalization Other cabling problems can be determined from the measured value obtained during the delay measurement Checking of the delay differences between the measurement channel and reference channel Delay Measurement S xi Speaker Front Right delay cannot be negative 1 ms Check connection of UPY analyzer channel 1 must be connected to UFF generator channel 10 Complete Delay measurement will be repeated E Cancel Fig 62 Plausibility check for the delay result lf the reference channel has a greater delay than the measurement channel it is not connected to the reference signal but instead to the 2nd channel of the microphone amplifier Distance between the speaker and associated HATS ear is too great Delay Measurement q z x 1 Speaker Front Right delay too long 10 ms Left and right ear seems bo be swapped or distance to Right microphone to long 3 43 rm Check ear connections and position of Speaker Front Right Cancel Fig 63 Message for unexpectedly long delay If the measured distance is greater than the intended maximum distance the longer indirect sound path to the ear located opposite may possibly have been measured In this way it is possible to detect inadvertent swapping of the HATS ears Distance between the speaker and associated HATS ear is to
48. to ERP Correction gt Type 3 2 High leak Browse to the file OES HL ADA and click Open The calibration file is read The modified data is stored on the R amp S UPV hard disk This procedure needs only be repeated after a change of the calibration data e g after a recalibration of the ear by the manufacturer or when the 3GPP directory has been renamed or removed Calibration of Ear Type 3 3 gt gt gt Remove the pinna from the artificial ear according to the manufacturer s instructions Connect the sound level calibrator tightly to the artificial ear using the adapter UA 1546 and switch the calibrator on Select Calibration gt Artificial ear gt HATS Type 3 3 from the main menu For calibrators providing a sound pressure level of 114 dB 10 Pa the checkbox Calibration level increased by 20dB must be checked In all other cases the checkbox must remain unchecked The type 3 3 ear calibration requires the calibrator with adapter UA 1546 to be held manually against the ear If the HATS is installed remote from the R amp S UPV the checkbox Delay start by seconds can be checked and a time interval can be entered by which the start of the calibration measurement is delayed The countdown is displayed on the R amp S UPV screen Microphone calibration Connect aniticial ear to analyzer Input 1 Put at ear on calibrator with adapter part 041546 and switch on calibrator
49. with file ID_equalization veq Alternatively an individually determined curve can be loaded If an equalization curve of the chosen type is missing for one of the artificial ears in use the calibration procedure is aborted with an appropriate error message Speaker Distance Range The following controls allow to specify a restricted range for the distance between each speaker and the artificial ears of the HATS Fig 25 Setting the range for the speaker distance This allows to detect for example swapped ear connections because the delay from the speaker to the contra lateral ear takes a detour over wall reflections The default values are appropriate for the room size specified in standard ETSI EG 202 396 1 The distance between full range speakers and artificial ears is determined by delay measurements The distance between the subwoofer and the HATS must be measured by the operator and entered in the configuration window Level Tolerance The control Fig 26 Control for maximum allowable level deviation defines the maximum allowable tolerance for the level adjustment Higher accuracy usually requires more iteration steps up to 5 and is possibly not even adjustable with this maximum number of iterations Is the required tolerance not reached the operator is prompted in a message box whether to start more iterations or accept the tolerance If the adjustment process is to run automatically without operator interaction this
50. 00 8000 The sensitivity in dBV Pa at each frequency is defined as the difference between the level at the network interface digital level measured at the analog R amp S CMU200 speech output and the sound pressure level at the mouth reference point MRP and the sending loudness rating is calculated according to formula 5 1 of ITU T P 79 The weighting factors are taken from ITU T P 79 table A2 for narrowband and for wideband according to release 8 and later and from ITU T P 79 table G1 for wideband according to release 6 and 7 Note that loudness rating values are loss values i e a high loudness rating values indicates a low gain and a low loudness rating value indicates a high gain Due to the input sensitivity tolerance of the R amp S CMU200 speech coder the individual sensitivity of the R amp S CMU200 used has to be taken into account in order to calculate the sending loudness rating see calibration routines According to 3GPP TS 26 131 the sending loudness rating should be between 5dB and 11 dB with lower dB values corresponding to greater loudness 5 dB maximum loudness 11 dB minimum loudness The measured SLR is indicated in a window in the frequency response display and checked for compliance with these limits In addition to the numeric value either PASS or FAIL is displayed The general PASS or FAIL information is obtained from the limit check of the frequency response curve and the loudness rating PASS is output on
51. 02 0043 12 Acoustic Measurements on Mobile Phones Ear simulator Ear simulator allows selecting the type of ear simulator used For details on the handling of calibration data see section 4 Calibration below Select ear simulator at startup If Select ear simulator at startup is checked the selection window for the ear simulator is opened at each start of the program Artificial mouth Artificial mouth allows selecting the type of artificial mouth used For details on the handling of calibration data see section 4 Calibration below Select artificial mouth at startup If Select artificial mouth at startup is checked the selection window for the artificial mouth is opened at each start of the program System simulator System simulator allows selecting the type of system simulator used For details on the handling of calibration data see section 4 Calibration below Hands free settings Hands free settings allows selecting the acoustic instruments used for hands free testing It is possible to use an ITU T P 51 artificial mouth together with a free field microphone a HATS with one artificial ear or a HATS with two artificial ears If two artificial ears are used the decoder has to be disconnected from analyzer input 2 and the second artificial ear has to be connected to it for receiving measurements Do not forget to re connect the decoder for any measurement in sending dir
52. 2 17 2012 16 38 11 3GPP DTHF Receiving MMS Nom Yol Rel FAIL Receiving Loudness Ratir seers 02 17 2012 16 40 56 3GPP DTHF Receiving MMS Max Yol Rel 1 FAIL Receiving Loudness Ratir seen 02 17 2012 16 42 28 3GPP HF Distortion Receiving NB Rel 10 FAIL Low limit margin SINAD y mam 02 17 2012 16 46 41 3GPP HF Echo loss nom vol Rel 10 PASS Echo Loss 54 5 dB conan 02 17 2012 16 48 52 3GPP HF Echo loss all vol steps Rel 10 PASS Echo Loss 43 4 dB cea 02 17 2012 16 51 11 3GPP DTHF Sending P 50 Rel 10 FAIL Sending Loudness Rating see 02 17 2012 16 53 38 3GPP DTHF Receiving P 50 Nom Yol Rel 1 FAIL ALAR 12 3 dB La sees 02 17 2012 16 56 02 3GPP DTHF Receiving P 50 Max Yol Rel 1 FAIL RLA 11 8 dB enn 02 17 2012 16 58 03 3GPP HHHF Sending P 50 Rel 10 FAIL Sending Loudness Rating sees 02 17 2012 17 00 26 3GPP HHHF Sending MMS Rel 10 FAIL Sending Loudness Rating 02 17 2012 17 00 51 3GPP HHHF Receiving MMS Nom Yol Rel FAIL Receiving Loudness Ratir sores 02 17 2012 17 04 44 3GPP HHHF Receiving MMS Nom Yol Rel FAIL Receiving Loudness Ratir ea 02 17 2012 17 05 52 3GPP HHHF Receiving P 50 Nom Wol Rel FAIL RLA 11 8 dB a 02 17 2012 17 06 36 3GPP HHHF Receiving P 50 Max Yol Rel PASS ALA 11 6 dB nn 02 17 2012 17 08 38 3GPP HHHF Receiving P 50 Min Yol Rel 1 PASS ALAR 12 0 dB soseeee 02 17 2012 17 10 03 3GPP HHHF Receiving MMS Max Yol Rel PASS Receiving Loudness Ratir sees 02 17 2012 17 10
53. 3GPP standard is constantly updated according to technical advances etc Therefore different versions of the specifications exist in parallel the so called releases Use the Release menu to display testcases applicable for a certain release Furthermore a separate spreadsheet TestCaseList_23147 xls is provided which lists all tests and their applicability for the different releases This test case list also serves as a reference for the file names used as parameters when starting a test case remotely Sending Frequency Response and Loudness Rating Sending Frequency Response The sending frequency response is specified as the transmission ratio in dB of the voltage at the decoder output to the input noise pressure at the artificial mouth With ear type 3 1 and 3 2 the mobile phone under test is installed in the LRGP loudness rating guard ring position according to ITU T P 76 and the receiver is sealed to the artificial ear With ear types 3 3 and 3 4 the mobile phone is mounted on the HATS using the handset positioner The adjustment angles on the handset positioner are not specified in the standard but should be noted for later reference A test signal with a sound pressure of 4 7 dBPa are created with the artificial mouth at the MRP mouth reference point and the corresponding output voltage is measured at the R amp S CMU200 speech decoder output and evaluated The sending frequency response must be within the limit lines
54. 400 mm Va Clear Area min 500 mm min 400 mm Clear Area D Surface min 500 mm Fig 91 Test setup for stability loss test As soon as the operator has acknowledged the UE to be correctly placed a PN signal with high rms level is send to the network interface and the returned signal at the output of the system simulator after the roundtrip delay is measured The spectral attenuation is calculated from the difference of the level spectra 3GPP Stability loss WB Rel 10 co 2 0 a o oe O Ly 1000 Frequency Hz Y Measured Stab Loss 56 63 dB PY Noise HATS Type 3 3 Art Ear CMU CBT Example Test Mobile Save Curve as Enter Seve Cuve as Load Curve ENS M pan Coen Delete Curve Create Report Fig 92 Window of stability loss test 1402 0043 12 73 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones A second measurement is performed without test signal to show the noise floor of the measurement As the graph plots the path loss the noise induced result will usually be above the stability loss result Echo Control Characteristics The Echo Control Characteristics test has been added to 3GPP TS 26 132 in Release 11 It requires update key UPV K9103 and option second analog generator UPV B3 It is a so called double talk test in which test signals are sent in both uplink and downlink direction simultaneously The signal sent by the m
55. AIL is displayed With 3GPP Receiving Handset nom Vol the general PASS or FAIL information is obtained from the limit check of the frequency response curve and the loudness rating PASS is output only if both the curve and the loudness value are within tolerances 3GPP Receiving Handset max Vol checks only the RLR against a minimum of 13 dB The frequency response curve is shown for information only 3GPP Receiving Handset min Vol checks the RLR against a maximum of 18 dB 65 E 7 Acoustic Measurements on Mobile Phones 3GPP Receiving Handset nom Yol Frequency Response Margin 4 98 dB Receiving sensitivity dB re 1 Pa 1000 Frequency Hz BY Measured ALA 3 74dB BY Upper limit PY Lower limit 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Save Curve as Enter cose Seve Cuve as Load Curve Grafs Mea Ee a aa Coment Delete Curve Create Report Close Fig 84 Receiving frequency response with RLR value displayed Receiving Tests using Artificial Voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as Test Signal Receiving tests are alternatively offered with artificial voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as test signal update key UPV K9101 UPV K9102 or UPV K9103 required for P 50 update key UPV K9103 required for P 501 The P 50 test signal simulates the spectrum and time str
56. Artificial Ear Note that the second artificial ear must be connected to Analyzer input 2 instead of the R amp S CMU200 connection According to 3GPP TS 26 132 free field equalization has to be taken into account Free field data can either be imported as an average table from the standard or from an individual calibration disk using the menu item Calibration gt Free field equalization The calibration of the artificial mouth for hands free tests comprises two additional steps After the level has been adjusted and the frequency response has been equalized at the MRP the reference microphone has to be repositioned at the so called Hands Free Reference Point HFRP or HATSHFRP For the mouth according to ITU T P 51 the HFRP is in 50 cm distance from the lip ring on the axis of the mouth The calibration has to be performed at this point independent of the measuring distance currently used 91 E 7 Acoustic Measurements on Mobile Phones The HATS HFRP is stipulated in ITU T P 581 It is one of the points 11 to 17 defined in table 6a of ITU T P 58 It should be on the axis which is closest to the actual axis from the lip ring to the microphone under test The distance is always 50 cm from the lip ring The axis may be azimuthally centric i e 0 horizontally with an elevation vertical angle of 0 15 or 30 Points 16 and 17 are located on an axis with 0 elevation and an azimuth angle of 15 or 30 The level at t
57. GPIB and on the remote commands mentioned above please see the user manual of the R amp S UPV 111 E 7 Acoustic Measurements on Mobile Phones 11 Terminating the Application 1402 0043 12 The measurement can be terminated from the main window with the Exit softkey This causes the result file to be written to the hard disk Please allow a few seconds for the results file to be written before shutting down windows Do not shut down the instrument before the application program has been closed 112 E 7 Acoustic Measurements on Mobile Phones Appendix A Settings on the Radio Communication Tester R amp S CMU200 Firmware 4 52 Settings for GSM Selection of the GSM band a GSMo 00 Overview Menu Select Basic Functions Non Signaling Analyzer Generator gt 36 UMTS User Equipment AMPS Mobile Station GSM Mobile Station GSM 400 GSM 850 GSM 1800 GSM 1900 IMT 2000 Mobile Station gt TDMA Mobile Station sa GSMo00 overview GSMo00 Connection Control E 1402 0043 12 113 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Select EFR full rate version 2 HR half rate version 1 AMR full rate or AMR half rate speech coder 3GPP TS26 132 specifies AMR at 12 2 kbit s which is identical with full rate version 2 sa GSMo00 overview t GSM900 Connection Control E Signal On Full Rate Version 1 Full Rate Version 2 Half Rate Version 1 Full Rate Data 4800 Fu
58. K aisnean aaa as 51 Equalization and Level Adjustment oooccocccccccccncnoncnononanonanonanos 51 Level Adjustment nta 52 EQUAIZALION raid A AS 52 All Speaker Equalization ooccccocncoccnccccncocnccncnnnnonos 53 4 Data Entry for Reporting occccoccccocnoccnnononncnonncnonconnnonannonannnnanconanonos 54 Do o PA we 54 A E E E 54 O Measures ance E E E ewe 55 A A A E EE A E E IN A 55 Starting Measurement 56 Functionality and control of the measurement macros cccocccoo 57 LOOMI a EE 58 Changing the Scale of the Graph oocccocccocccocncocncocncononononononos 58 GUS OF rs seedessdoasersvensebnesduareresd heanesties 58 DARIA deal 58 Entering a Commen tula cita 58 Storing a Hardcopy of the Graph occoocccccccccccccccocncocnconononocononos 59 Making Additional Measurement cccccceeeeeeeseeeeeeeseeeeeeees 59 Storing and Loading Curves oocccoccccnncncncnnnncnnoncnonanonnnnnonononnnnnonos 59 Storing Curves as Limit Curves occoccccccccocncocncocncocncocnconnnonocononos 60 Deleting Additional Curves in the Measurement Graph 60 Creating a REPO Muir 60 Closing the Measurement WiNdOW oocccoccccccnccccncccnccncncnncnnnnos 60 Notes on Handset Measurements ccccccceecceeeeeeeeeeeeaeeeaeeeaees 61 Applicability of Measurements and Equipment Depending on the REICAS Ost teo rada crei dla Wines del ee o celda nd Aue 61 Sending Frequency Response and Loudness Ra
59. ON c ccccceeeeceeeeeeeeeaeeeeeeeesaees 121 6 E 7 Basic Safety Instructions Always read through and comply with the following safety instructions All plants and locations of the Rohde amp Schwarz group of companies make every effort to keep the safety standards of our products up to date and to offer our customers the highest possible degree of safety Our products and the auxiliary equipment they require are designed built and tested in accordance with the safety standards that apply in each case Compliance with these standards is continuously monitored by our quality assurance system The product described here has been designed built and tested in accordance with the EC Certificate of Conformity and has left the manufacturer s plant in a condition fully complying with safety standards To maintain this condition and to ensure safe operation you must observe all instructions and warnings provided in this manual If you have any questions regarding these safety instructions the Rohde amp Schwarz group of companies will be happy to answer them Furthermore it is your responsibility to use the product in an appropriate manner This product is designed for use solely in industrial and laboratory environments or if expressly permitted also in the field and must not be used in any way that may cause personal injury or property damage You are responsible if the product is used for any purpose other than its designated purpose or in
60. Operating Manual O bras EA ee iscsensoss sisese UMTS GSM Mobile Phone Tests R amp S UPV K9 R amp S UPV K91 1402 0008 02 1402 0108 02 Version 3 0 3 56 Printed in Germany ROHDE amp SCHWARZ Test amp Measurement 1402 0043 12 07 1 Dear Customer R amp S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners 1402 0043 12 07 2 Contents 1402 0043 12 Contents Safety Instructions Support Center Address A e o O ea 7 2 Preparation and Start of the Application Software ccooccccocnccoocncn 8 Required Measuring Instruments and Accessories cceeeeeeees 8 Installing the Software oocccoccccocnccocncoocnconcnononnonononnnncnncnonanonnnnnnos 11 Verification of the Installation oooccconcccocncccnnccccnononoconcnnnnnnnos 12 A A 13 Starting the Application Software oocccocccccncccocnccocnconcncnonononnnnnonos 14 Options General settings ooooncccoccccconcnconacnnonannnnnnnnconanononanoss 18 SILO AU cote ae teaser oop vio ind hate A E E E E 18 Select standard at Startup oocooccccoccccccnccocncnncnonannnnonnnnnncnnnnnnnos 18 A en A 18 Select release at Startup ooocccconccconccconcconnncannonancnnanonannnnannnnons 18 re ao 010 O geen ete ner ene tio ea ene eee 19 Select ear simulator at Startup ooocccoccccocncccnn
61. Options menu have to re done and for all used calibration types calibrated devices have to be selected again Damaged results file is reported There are backup files available of the file containing the test results with appendix 1 and 2 to the file name of the results file usually D 3GPP Results xml If the results file cannot be opened for some reason the program automatically offers to restore the latest backup file If this does not work a backup file can be renamed by removing the respective 1 or 2 extension and opened subsequently It is recommended to store the damaged results file under a different name A test is not starting properly Re select devices for the calibration types required for the respective test using menu item Calibration gt Select device If this does not solve the problem copy all files from C Program Files Rohde amp Schwarz UPV K9x mobile phone tests 3GPP files Overwrite to D 3GPP overwriting the existing files therein A calibration value is missing or no device is selected for a required calibration type If re selecting the calibration device and re calibrating it does not help create a new device with Calibration gt New device Tick the Immediately select this device box before clicking the Ok button and do the calibration for this device All selected devices and their calibration values can be checked with Calibration gt Show selected devices
62. PP Idle channel noise receiving nom Vol At maximum receiving loudness the sound pressure should not exceed 54 dBPa A In this case use test 3GPP Idle channel noise receiving max Vol The measured noise voltage is also displayed as a spectrum making it easier to find causes if the limit value is exceeded 1402 0043 12 Acoustic Measurements on Mobile Phones 3GPP Idle channel noise sending Idle Channel Noise Se Snd Noise lt 64 dBmO P CCITT weighted spectrum dB Frequency Hz Y Measured Noise 77 90 dBmO P 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Save Curve as Enter cose Seve Cuve a Load Curve ie tse Me poole Comment Delete Curve Create Report Fig 104 Typical result of receiving noise measurement The idle channel noise test employs a sinewave activation signal to activate the sending path of the mobile To avoid the activation signal leaking into the measurement a delay measurement is performed first If the signal path is interrupted e g due to a dropped call the measurement is aborted with a suitable message From release 10 of 3GPP TS 26 132 idle channel noise measurements also comprise the determination of a spectral maximum to detect single frequency disturbances The spectral maximum is determined from a 8192 points FFT in a 48 kHz sample rate system The test system averages five subsequent measurements whereby spectral
63. SPL or a sound pressure of 1 Pa at 1 kHz Calibration of Ear Type 1 gt Switch off the microphone power supply Attention The 200 V polarization voltage of the microphone may cause a Slight electric shock The current is harmless but the microphone preamplifier may be damaged Remove the microphone from the artificial ear Screw back the microphone capsule and switch on the operating voltage Insert the microphone fully into the adapter of the sound level calibrator and switch on the calibrator Note After inserting the microphone wait about 10 s to allow for Static pressure compensation Select Calibration gt Artificial ear gt Type 1 from the main menu For calibrators providing a sound pressure level of 114 dB 10 Pa the checkbox Calibration level increased by 20dB must be checked In all other cases the checkbox must remain unchecked The output voltage of the microphone is measured and the sensitivity displayed with reference to 1 Pa If a mere power supply without gain is used the displayed sensitivity must approximately match the value in the calibration certificate of the microphone cartridge typical value for microphone capsule 4134 of artificial ear 4185 is approx 12 mV Pa If a conditioning amplifier with 20 dB gain recommended value is used the displayed sensitivity must be about 10 times higher e g 120 mV Pa If the voltage measured is below 3 mV or fluctuating by more than 0 2 dB a
64. UPP output level this may have the following causes e the microphone amplifier is switched off e the HATS ear is not connected to the correct amplifier channel e the amplifier is not connected or is incorrectly connected to UPV channel 2 e the speaker concerned is switched off e the speaker concerned is not connected to the correct UPP channel After the error has been rectified the measurement can be repeated Measurement of Level Change at Reference Input When the UPP output level is increased the level at UPV measurement channel 1 connected to UPP generator channel 10 must change by the same amount Comection test Level sweep Failed on UPY channel 1 UPF generator channel 10 not connected to UPY channel 1 Fig 59 Message for insufficient level change at reference input If the reference input does not change with the UPP output level there is no connection between UPV channel 1 and UPP output channel 10 After the error has been rectified the measurement can be repeated Delay Measurement The delay measurement determines the time it takes for the sound to travel from the speaker membranes to the left and right ear of the HATS The travel time and therefore the distance of the full range speakers from the HATS is measured by means of cross correlation of the acoustic sound pressure signal and the electrical reference signal Since the delay measurement is quite complicated owing to the required cabling mod
65. V between the receiving and the voice channel and an overall gain of 6 dB is set The gain of the coder is automatically taken into account see also Echo Loss To activate the loop a noise signal of 10 dBm0 in line with ITU T 0 131 is applied for 1 s and then switched off with the loop remaining closed The test person has to listen to determine whether any resonances or oscillations are produced If there are no oscillations the minimum requirements according to 3GPP TS 26 131 for a stability margin of 6 dB are met The stability margin test is specified up to release 9 of 3GPP TS 26 132 Stability Loss From release 10 of 3GPP TS 26 132 the stability margin test case is replaced by a stability loss test case The test measured the attenuation between input and output of the system simulator similar to the echo loss measurement Other than with the echo loss measurement the result is not integrated over frequency but the spectral minimum is searched 1402 0043 12 12 E 7 Acoustic Measurements on Mobile Phones The test routine first looks for valid delay results of the selected device under test in sending and receiving direction If no results are found or if the delay results are older than specified in the parameters of this measurement the UE has to be first mounted on the HATS for the delay measurements When valid delay values are available the mobile has to be set up according to the following illustration min
66. Window for configuring the background noise calibration The configuration of the noise field calibration comprises 1 Choice of the calibration method 21 E 1402 0043 12 Acoustic Measurements on Mobile Phones 2 Speaker configuration 3 Bandwidth and tolerance settings 4 Other settings The configuration is saved in the settings of the UPV K9x program so that it has to be done at least once and can then be re used as long as the speaker configuration and calibration methods do not need to be changed Section 3 4 3 may be skipped by a non expert operator Equalization method Three different equalization methods are available with different trade off between required measurement time and achieved accuracy 1 Individual equalization and level alignment for each ambient noise condition The complete equalization procedure is repeated for each ambient noise condition This allows equalizing individual responses of each noise condition and obtains best matching equalization results The required measurement time is the highest of all three alternatives and requires at least eight hours Fig 17 Setting for individual speaker equalization of each ambient noise condition 2 Equalization using pink noise and individual level alignment for each ambient noise condition The room response is measured using stochastic pink noise The obtained equalization is used for all ambient noise conditions The stochastic nature of the pink
67. a deber ser utilizado de modo que alguna persona cosa pueda sufrir da o El uso del producto fuera de sus fines definidos o sin tener en cuenta las instrucciones del fabricante queda en la responsabilidad del usuario El fabricante no se hace en ninguna forma responsable de consecuencias a causa del mal uso del producto 1171 0000 42 07 Page Instrucciones de seguridad elementales Se parte del uso correcto del producto para los fines definidos si el producto es utilizado conforme a las indicaciones de la correspondiente documentacion del producto y dentro del margen de rendimiento definido ver hoja de datos documentacion informaciones de seguridad que siguen El uso del producto hace necesarios conocimientos tecnicos y ciertos conocimientos del idioma ingles Por eso se debe tener en cuenta que el producto solo pueda ser operado por personal especializado o personas instruidas en profundidad con las capacidades correspondientes Si fuera necesaria indumentaria de seguridad para el uso de productos de Rohde amp Schwarz encontraria la informacion debida en la documentacion del producto en el capitulo correspondiente Guarde bien las informaciones de seguridad elementales asi como la documentacion del producto y entreguelas a usuarios posteriores Tener en cuenta las informaciones de seguridad sirve para evitar en lo posible lesiones o da os por peligros de toda clase Por eso es imprescindible leer detalladamente y comprender por completo
68. aciones Aparato de clase B Aparato adecuado para su uso en entornos residenciales asi como en aquellos conectados directamente a una red de distribuci n de baja tensi n que suministra corriente a edificios residenciales 1171 0000 42 07 Page 12 Instrucciones de seguridad elementales Reparacion y mantenimiento 1 El producto solamente debe ser abierto por personal especializado con autorizacion para ello Antes de manipular el producto o abrirlo es obligatorio desconectarlo de la tension de alimentacion para evitar toda posibilidad de choque el ctrico El ajuste el cambio de partes el mantenimiento y la reparaci n deber n ser efectuadas solamente por electricistas autorizados por Rohde amp Schwarz Si se reponen partes con importancia para los aspectos de seguridad p ej el enchufe los transformadores o los fusibles solamente podr n ser sustituidos por partes originales Despu s de cada cambio de partes relevantes para la seguridad deber realizarse un control de seguridad control a primera vista control del conductor de protecci n medici n de resistencia de aislamiento medici n de la corriente de fuga control de funcionamiento Con esto queda garantizada la seguridad del producto Bater as y acumuladores o celdas Si no se siguen o se siguen de modo insuficiente las indicaciones en cuanto a las bater as y acumuladores o celdas pueden producirse explosiones incendios y o lesiones graves con posible
69. all would be lost during the transition Therefore the command SYSTem GTRMode COMPatible OFF has to be issued before the first real remote control instance Insert CMU run this first in your sequence before any other remote CMU remote control 102 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones gt CMU synchronize mobile GSM selec Mal E Actor CMU synchronize mobile 35M Guerying CMU status Target state SYNC CMU Response SOM Error E No error Communication gt PROC SIGH CSWACT SON Soto ERRE D No error gt SIGH 5TAT SON gt SYST ERR D No error gt SIGH 5TAT SON gt SYST ERR D No error Time left AP 76S seconds Cancel Fig 123 CMU remote control window Action shows the current remote control action Target state shows the desired query response CMU Response shows the actual response of the R amp S CMU200 to the query Error information returned from the R amp S CMU200 after the last command query is displayed in the Error field The Communication box lists all commands and responses issued during the control process During the status query the box Time left shows the time left until the timeout expires Opening an Existing Sequence The menu item Sequence gt Open opens a file selector for specifying the sequence to be loaded The sequence file is usually found
70. an either be measured separately for uplink and downlink or the loopback delay can be measured by establishing a loopback of the voice data in the system simulator In both cases the contribution of the system simulator has to be subtracted from the measured end to end delay 3GPP Delay NB CMU GSM AMR FR UL DL Envelope of Cross Correlation 400 450 500 550 600 650 700 750 800 850 9300 Delay ms Corr Snd Delay 67 04 ms x Corr Rev Delay 69 33 ms HATS Type 3 3 Art Ear CMU CBT Save Curve as Enter Load Curve ER Me bape PA Delete Curve Create Report Close Fig 88 Typical roundtrip delay result according to release 11 The uplink downlink or loopback delay is measured by cross correlation between the generator output signal and the analyser input signal 70 E Acoustic Measurements on Mobile Phones Test signal is a composite source signal CSS according to ITU T P 501 which consists of a voiced part and a pseudo noise multisine part For uplink and loopback on the network side the test signal is offline filtered according to the mouth speaker equalization curve obtained during mouth calibration This offline filtering is only performed when the valid speaker equalization curve is newer than the file with the filtered test signal Echo Loss TCLw The echo loss is the attenuation between the speech coder input and the speech decoder output gain of speech coder decoder 1 N
71. andomly incident sound at the place of the microphone This can either be achieved in a reverberation room with omni directionally radiating sound source or in an anechoic room with a number of uncorrelated noise sources Limited homogeneity can be achieved in the centre between two speakers For good diffuseness a minimum of four speakers distributed in different spatial directions are required A diffuse field or pressure field microphone must be positioned at the spot of the mouth reference point of the removed test head or HATS The menu Item Calibration gt Ambient noise field opens the window shown in Fig 26 The button Adjust Spectrum starts a continuous spectrum measurement which allows to adjust the spectrum of the noise e g using equalizers The template is centred around the curve irrespective of the absolute level 1402 0043 12 42 E 7 Acoustic Measurements on Mobile Phones 36 Ambient Noise Adjustment dy S ESS co a 2 oO D a D 2 TE D Cd 1000 Frequency Hz No Standard Diffuse field microphone CMU 7 CATU SUS Stop e a o l aA Adjustment Measuremen Fig 48 Measurement window for spectrum adjustment The continuous spectrum measurement can be aborted by clicking Stop Adjustment The button Adjust level starts a continuous level measurement If a multitude of sources is used each source must produce a sound pressure level of 24 dBPa 3 LOG
72. ansfer function gain calculation For sending and sidetone tests the signal has to be filtered in addition with the inverse frequency response of the artificial mouth A calibrated reference microphone must be placed at the Mouth Reference Point MRP for this purpose It is recommended to perform the reference spectrum calibration directly after the mouth calibration using sub menu item Calibration gt Artificial Mouth gt gt With P 50 Ref Spectrum The reference spectrum calibration for the receiving direction does not require external equipment or wiring The reference signal at the output from the R amp S UPV generator to the speech input of the system simulator is measured via internal connection to the R amp S UPV analyzer 39 E 7 Acoustic Measurements on Mobile Phones input For narrow band tests in receiving direction a band limited version of the test signal is used Each version of the test signal has to be calibrated separately For ambient noise rejection according to Release 10 of 3GPP TS 26 132 a separate speech reference spectrum calibration is necessary because the active speech level at the MRP is specified to be 1 3 dBPa instead of 4 7 dBPa for this test The test routines can be found in sub menu Calibration _ gt P 50 Speech Ref Spectrum gt sending for ANR Calibration Measurement Standards Release Config Meas Sequence Report Options Selective Microphone i Test object
73. ater as y acumuladores M s informaci n en la secci n Eliminaci n protecci n del medio ambiente punto 1 1171 0000 42 07 Page 8 Instrucciones de seguridad elementales Significado S mbolo Significado Aviso Cuidado en el manejo de dispositivos e Distintivo de la UE para la eliminaci n por sensibles a la electrost tica ESD separado de dispositivos el ctricos y electr nicos M s informaci n en la secci n Eliminaci n protecci n del medio ambiente punto 2 Advertencia rayo l ser M s informaci n en la secci n Funcionamiento punto 7 Palabras de se al y su significado En la documentaci n del producto se utilizan las siguientes palabras de se al con el fin de advertir contra riesgos y peligros A PELIGRO Indica una situacion de peligro que si no se evita causa lesiones graves o incluso la muerte Indica una situacion de peligro que si no se evita puede causar lesiones graves o incluso la muerte lesiones leves o moderadas Indica informaci n que se considera importante pero no en relaci n con situaciones de peligro p ej avisos sobre posibles da os materiales En la documentaci n del producto se emplea de forma sin nima el t rmino CUIDADO A ATENCI N Indica una situaci n de peligro que si no se evita puede causar Las palabras de se al corresponden a la definici n habitual para aplicaciones civiles en el rea econ mica europea Pueden existir defin
74. ayed after the Report Sequence softkey has been pressed After the sequence window has been closed a report on the last sequence can be obtained by pressing the Report last sequence softkey in the main window 104 E Acoustic Measurements on Mobile Phones 9 Reporting Storing Loading and Deleting Results 1402 0043 12 Result Files Measurement results are stored together with all associated data in XML files Separate files can be used for different projects or operators They can be archived together with other project data and re opened later for generating reports It is recommended to keep result files small and to generate backups at frequent intervals gt UP K9x Mobile P File Daka Calibration Open results File Save results Save results as Mew results File Load settings Save settings Save settings as Exit Fig 125 File menu A new empty result file can be created with File gt New Result File from the main menu An existing result file can be opened with File gt Open Result File from the main menu A currently opened result file can be stored under a new name with File gt Store results as from the main menu Report Settings With Report gt Settings or Options gt Report settings a selection can be made of data which should appear in the reports Thus information which is the same for a larger number of measurements does not have to be pr
75. ayed which can be dragged along the graph with the mouse X and Y values of the data points below the cursor are displayed Data Point Size Data Point Size in the graph context menu opens a window in which the size of marks at the measured data points can be specified Moving the mouse cursor over one of the marks causes the associated X and Y values to be displayed Entering a Comment With the softkey Enter Comment or the item Comment in the graph context menu a comment can be entered and edited which will appear in the report about the respective measurement 98 E 7 Acoustic Measurements on Mobile Phones Storing a Hardcopy of the Graph With the menu item Save Screenshot as in the graph context menu a hardcopy of the current graph window with all numeric displays legend etc can be stored as image The current view of the graph including additional curves current scaling and size is copied However colours are inverted to a printer friendly colour set all o ra o w ao w gt y ps co a 5 a D E g S o wn AAA AE MOS IJN Pass es ek L BERGER ae eee eee ee ack co C a a 1000 Frequency Hz 1 57 Measured SLR 9 89dB LAY Upper limit AY Lower limit Fig 82 Hardcopy of measurement graph Making Additional Measurements The softkey Add Measurement triggers another measurement according to the speci
76. bilizados ver tambi n el cap tulo Estados operativos y posiciones de funcionamiento punto 1 Por eso es necesario tomar las medidas necesarias para evitar la entrada de l quidos En caso contrario existe peligro de choque el ctrico para el usuario o de da os en el producto que tambi n pueden redundar en peligro para las personas No utilice el producto en condiciones en las que pueda producirse o ya se hayan producido condensaciones sobre el producto o en el interior de ste como p ej al desplazarlo de un lugar fr o a otro caliente La entrada de agua aumenta el riesgo de choque el ctrico Antes de la limpieza desconecte por completo el producto de la alimentaci n de tensi n p ej red de alimentaci n o bater a Realice la limpieza de los aparatos con un pa o suave que no se deshilache No utilice bajo ning n concepto productos de limpieza qu micos como alcohol acetona o diluyentes para lacas nitrocelul sicas 1171 0000 42 07 Page 11 Instrucciones de seguridad elementales Funcionamiento 1 El uso del producto requiere instrucciones especiales y una alta concentracion durante el manejo Debe asegurarse que las personas que manejen el producto est n a la altura de los requerimientos necesarios en cuanto a aptitudes f sicas ps quicas y emocionales ya que de otra manera no se pueden excluir lesiones o da os de objetos El empresario u operador es responsable de seleccionar el personal usuario apto para el
77. ble remote control Menu item Enable remote control activates the interface of the program for remote control using the client ControlK9 exe 29 E 7 3 Calibration 1402 0043 12 Acoustic Measurements on Mobile Phones Calibration Devices R amp S UPV K9 allows to simultaneously store calibration values for multiple individuals of the same type This allows to switch devices without the requirement for re calibration However regular re calibration is recommended in order to assure the correct function of the used devices Calibration Measurement Standar w Selective Microphone Artificial Ear DRP Eo ERP correction Free field equalization Diffuse Field equalization Artificial Mouth Artificial Mouth Hands Free Codec Induction coil TFT r YO FTF F Y F s Electric connections P 50 Speech Ref Spectrum P Ambient noise Field New Device Select Device Delete Device Show all values Show selected devices Fig 37 Calibration menu For every device to be calibrated an entry must be created using Calibration gt New device in the main menu This menu item opens an entry window to specify the calibrated device A category of device must be chosen from the combo box on top Type manufacturer and serial number are entered into the text boxes below The entries are confirmed by clicking on the Save and close button If the box Immediately select this device is checke
78. coonoconnncnononannnnnos 19 Artificial MOI Mina 19 Select artificial mouth at Startup ccooccccocnccccncconncconoconnconnnnnnos 19 System simulator sectario l eiii 19 Hands free SettingS coooccoccccoccnccocncconnoconnonannnnancnnnnconanonanoss 19 Activation signal for distortion testS oocconcconnconncconiconononos 19 Show operator instructions ccoocccoccccccnccccnconcnonanononnnonononanononos 20 CMU remote CoOnNtroOl oocccoccococccccnccncncconnncnnnonancnnancnnnnonaninnans 20 CMU SUBS VS coax occcceserecdecdannsezentectuenbeassetesghicexseseesersereeauesecs 21 Noise Calibration Configuration cccooccccccncocnononnconcncnacnnnnnnnos 21 Equalization Method cccccccceececeeeeseeeeeeeeseeeeseeeeaeeeeaes 22 Speaker CONfIgUratiON ccooocccccnccccncoocnconnnnonnnoncnonnnnnnnos 23 Bandwidth and tolerance coooccooccccccnoncconcnononaconanonanonons 24 Ear EQUAalIZa ON seconds dci ide leas 24 Speaker Distance Range occccoccccocncconncconccncncnnnnonanonnono 25 Level TOISTAN sesccccevecccnsdessoncsaveineenieascuntows ss udendaveieseaeveses 25 Harmonic Distortion Limit ooccccccnconcccocnncncnccannnonnnnns 26 Additional Delay Modification for Each Speaker 26 Maximum Iteration Count for Equalization Steps 26 Final Spectrum Check ccccssceceeecceseeceeeceeeesseeeeeeeeees 27 Refinement of Total Spectrum Equalization
79. cting IGNORE i Retry Ignore Fig 68 Warning for excessive equalization needs Ignore continues the calibration process although this limit has been exceeded Initial rough equalization of the individual speakers is performed during the frequency response check Total Harmonic Distortion Measurement of the total harmonic distortion for each speaker at nominal level in order to prevent speakers from being overdriven Since destructive interference of the fundamental can occur at discrete frequencies which then results in a poorer total harmonic distortion being determined the measurement is repeated twice at different frequencies in the case of an error ComectionTest eed A THO of Speaker Front Left out of tolerance seems to be overdriven Retry Ignore Fig 69 Warning for excessive total harmonic distortion of a speaker If speakers with a high total harmonic distortion are used the tolerance limit must be set higher in the configuration dialog box Cabling Check This measurement which was already performed during the delay measurement is intended to ensure that the cabling is correct if the delay measurement is skipped and after the cabling has been changed The results are the same as those under Measurement of Level Change at Microphone Amplifier Output Equalization and Level Adjustment At the beginning of equalization a check is performed to establish whether a valid calibration data
80. d A cable with a BNC connector and special small or angled banana plugs is required for connecting the P 51 artificial mouth as the space between the mouth connectors and the LRGP test head B amp K 4602B is too small for common banana plugs The transformer supplied with option R amp S UPV K9 can only be used with the MMS test signal It must be connected between generator output 1 of Audio Analyzer R amp S UPV and the connector of the artificial mouth The transformer matches the impedance of the loudspeaker in the artificial mouth to that of the generator output of the R amp S UPV Without this transformer the available power is too low for driving the artificial mouth Alternatively a power amplifier preferably with a voltage gain of approx O dB can be connected between generator output and mouth instead of the transformer In this case the gain set must be kept absolutely stable after calibration For tests using artificial voice according to ITU T P 50 or real speech according to ITU T P 501 a power amplifier is required It may also be required for high level activation signals with high crest factor A cable with male analyzer and female generator XLR connector is supplied for connection to the Speech connector of the Digital Radio Communication Tester R amp S CMU200 UPV Analyzer Generator 2 2 Fig 1 Assignment of 9 contact speech connector on CMU front panel This cable is configured for connection to li
81. d Ambient noise Field Background noise Field Fig 52 Starting the background noise calibration process A brief set of cabling instructions appears first of all ES Setup speakers and HATS according to ETSI Standard ES 202 396 1 Connect UPP generator channel 3 to speaker Front Left channel 4 to speaker Rear Left channel 5 to speaker Front Right channel 6 to speaker RearRight channel 7 to subwoofer optional Fig 93 Cabling instructions for the speakers The measurements then begin The calibration process can be stopped at any time All of the calibration data recorded up to this point are then available and can be viewed in the report Measurement is stopped in the following way e f a dialog box appears click the Abort or Cancel button Noise Moor measurement A Noise Floor to high 36 51371 dBspl4 should be below 30 dEspli 4 Improve noise absorption Retry Ignore Fig 54 Setup for background noise calibration 1402 0043 12 46 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Delay Measurement aj x Speaker Front Right delay cannot be negative 1 ms Check connection of UPY analyzer channel 1 must be connected to UPP generator channel 10 Tor Complete Delay measurement will be repeated E Cancel Fig 55 Setup for background noise calibration e f measurement is still being performed click the Cancel button Ei H Measuring W BGN ose nose
82. d the device is selected for immediate use with the Save select and close button For ease of use a default device is present and selected for each device type category upon first start of the program 30 E Acoustic Measurements on Mobile Phones Calibrated Device Usage Manufacturer m Senal Number m Immediately select this device Cancel de Fig 38 Input window for information about calibrated device Before a device can be calibrated or used it must be selected This can be done from the Calibrated Device input window if the checkbox Immediately select this device is checked Existing devices may be selected with Calibration gt Select device in the main menu Clicking on this item opens a window with a table of all entered devices Select Calibrated Devices Manufacturer Type SerialNo Date and Time Calib value Filename a gt Default 08 29 2007 17 21 null D 3GPP Ca Default 07 13 2006 17 50 null DASGPPACa Diffuse field microphone Default 07 13 2006 17 57 null D 3GPP Ca Electric connection replacing decoder Default 07 13 2006 17 54 null D A3GPPACa Electric connection replacing ear Default 10 11 2007 11 36 null D 3GPP Ca Electric connection replacing encoder Default 07 13 2006 17 54 rull D A3GPPACa Electric connection replacing mouth Default 07 13 2006 17 51 null D 3GPP Ca Encoder Default 07 13 2006 17 51 null D 3GPP Ca Fre
83. d WCDMA use different link handlers separate calibration devices have to be generated for the two link handlers i e with and without the supplied adapter Note that encoder and decoder are handled as separate devices but calibrated with one routine Auxiliary settings required for calibration can be found in the R amp S CMU200 under Bit Stream for GSM and under BS Signal Dedicated Channel Voice settings for WCDMA firmware version 4 52 or higher Call the calibration routines with Calibration Codec CMU CBT from the main menu 1402 0043 12 40 E 7 Acoustic Measurements on Mobile Phones The following information is displayed Establish call and set Bit Stream bo Decodercal Fig 44 Message box during decoder calibration Set up a Call to the mobile phone Set bit stream or voice setting on the R amp S CMU200 to Decoder Cal and then click the OK button The actual voltage at the decoder output of the R amp S CMU200 is now measured for a digital full scale signal and the required correction value is calculated and saved in the R amp S UPV The following request is then displayed Set Bik Stream to EncoderCal Fig 45 Message box during encoder calibration After the OK button has been clicked the input sensitivity of the speech coder is measured and the input voltage required for digital full scale is measured at the speech coder and saved in the R amp S UPV Calibrati
84. d lead to environmental damage For additional information about environmental protection visit the Rohde amp Schwarz website Instrucciones de seguridad elementales jEs imprescindible leer y cumplir las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde amp Schwarz consiste en tener nuestros productos siempre al dia con los estandares de seguridad y de ofrecer a nuestros clientes el maximo grado de seguridad Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados segun las normas de seguridad vigentes Nuestro sistema de garantia de calidad controla constantemente que sean cumplidas estas normas El presente producto ha sido fabricado y examinado seg n el certificado de conformidad de la UE y ha salido de nuestra planta en estado impecable seg n los est ndares t cnicos de seguridad Para poder preservar este estado y garantizar un funcionamiento libre de peligros el usuario deber atenerse a todas las indicaciones informaciones de seguridad y notas de alerta El grupo de empresas Rohde amp Schwarz est siempre a su disposici n en caso de que tengan preguntas referentes a estas informaciones de seguridad Adem s queda en la responsabilidad del usuario utilizar el producto en la forma debida Este producto est destinado exclusivamente al uso en la industria y el laboratorio o si ha sido expresamente autorizado para aplicaciones de campo y de ninguna maner
85. d pressure level of 114 dB 10 Pa the checkbox Calibration level increased by 20dB must be checked In all other cases the checkbox must remain unchecked The output voltage of the microphone in the ear is measured and the sensitivity displayed with reference to 1 Pa If the voltage measured is below 3 mV or fluctuating by more than 0 2 dB an error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before restarting the measurement The measured reference value is stored in a file on the hard disk and used for all subsequent measurements when the same ear type 3 2H is used as currently selected Reading the DRP ERP Correction Data of the Artificial Ear of Type 3 2H The frequency response of the artificial ear of type 3 2H is supplied on a floppy together with the artificial ear The data is used for 35 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones transforming the measurement values from the drum reference point to the ear reference point Connect a USB floppy disk drive with the calibration disk to the R amp S UPV copy the file OES HL ADA from the manufacturer s calibration disk to a USB stick or a CD ROM or make this file available on a network drive via LAN Call the routine Calibration gt DRP
86. d to the rubber gasket of the artificial ear If the low leak version of this ear type is used care must be taken that the defined leak opening at the circumference of the artificial ear is not accidentally covered On the HATS with artificial ear type 3 3 a certain application force e g 8N has to be set on the handset fixture The speech coder is driven such that a signal with a system reference level of 16 dBm0 is obtained The sound pressure in the artificial ear is measured and evaluated Ear type 1 will no longer be used for measurements on 3GPP mobile phones Therefore 3GPP TS 26 131 defines limit values only for ear types 3 x whereas the limit values specified in 3GPP TS 51 010 previously GSM 11 10 are still valid for ear type 1 Use tests 3GPP GSM Rel 4 Receiving Handset nom Vol 3GPP GSM Rel 4 Receiving Handset max Vol 3GPP GSM Rel 4 Receiving Handset min Vol for receiving tests with type 1 artificial ear From Release 9 only ear types 3 3 and 3 4 are allowed for standard conformal tests From Release 10 only ear type 3 3 is allowed Frequency response limits have been adjusted accordingly Use the appropriate versions of the receiving testcase When ear type 1 is used the receiving frequency response must be within the limit lines specified in table 30 2 of 3GPP TS 51 010 When ear type 3 x is used it must be within the limit lines specified in 3GPP TS 26 131 In the frequency response curve the
87. dB is recommended From version 5 1 with the exception of wideband measurement according to release 6 and 7 an additional allowance of 3 dB should take measurement tolerances into account such that the effective minimum value is 3 dB To perform this measurement a homogeneous noise field for simulating the noise in the environment has to be generated This sound field must be generated by additional loudspeakers and noise generators To obtain a sufficiently homogeneous sound field several uncorrelated generators and loudspeakers are required The use of 2 to 8 generators and loudspeakers is common practice The noise sources have to generate pink noise spectral power density 1 f The permissible error in the relevant third octave bands must be smaller than 3 dB with the frequency response of the loudspeakers used also being taken into account Please refer to application note 1GAD51 available on the R amp S download web site for suggestions how to generate the noise field for the ambient noise rejection test The adjustment and testing of the sound field is done as a calibration process see section 4 above With sufficient long term stability of the noise generators and loudspeakers it can be used for a number of subsequent tests Alignment of the noise field has to be repeated if anything in the setup of the noise sources loudspeaker position amplifier gain etc is changed Furthermore it is recommended to check the noise field i
88. disregard of the manufacturer s instructions The manufacturer shall assume no responsibility for such use of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safety instructions Using the product requires technical skills and in some cases a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained personnel with the required skills be allowed to use the product If personal safety gear is required for using Rohde amp Schwarz products this will be indicated at the appropriate place in the product documentation Keep the basic safety instructions and the product documentation in a safe place and pass them on to the subsequent users Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations Therefore carefully read through and adhere to the following safety instructions before and when using the product It is also absolutely essential to observe the additional safety instructions on personal safety for example that appear in relevant parts of the product documentation In these safety instructions the word product refers to all merchandise sold and distributed by the Rohde amp Schwarz group of companies including instruments systems and all accessories For product specific
89. e 2 Wideband Boolean false True 3 ALA upper lim dB Double 5 True 4 ALA check upper Boolean true True 5 ALA lower limit dB Double 1 True 6 ALA check lower Boolean true True 09 04 2006 15 08 14 Operator instruction Set volume control to nominal position This test must be passed with at least one arbitrary setting of the volume control Program File RFR_MMS Setup Files No File name 1 36 receiving response set Number 13 Edit Number 13 Edit IV Locked Save copy _ Cancel Fig 118 Measurement parameters window 96 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones As Sequences create copies of the parameter files each instance of a measurement in a sequence can have different settings which remain independent of the setting of this measurement in the main window and in other sequences It is for example possible to compile a sequence with a number of stability margin tests having different loop gain The titles of the tests and the messages displayed to the operator before start of the measurement can also be edited in the Parameters window To facilitate copies of test definitions with small adaptations it is possible to store a copy of the current parameter set under a different file name button Save copy Each measurement definition must have a unique title to be distinguished from other definitions like for example the original from which the copy was made F
90. e and or serious personal injury and in some cases death Batteries and rechargeable batteries with alkaline electrolytes e g lithium cells must be handled in accordance with the EN 62133 standard 1 2 Cells must not be taken apart or crushed Cells or batteries must not be exposed to heat or fire Storage in direct sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit each other or where they can be short circuited by other conductive materials Cells and batteries must not be removed from their original packaging until they are ready to be used Cells and batteries must not be exposed to any mechanical shocks that are stronger than permitted If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the matching Rohde amp Schwarz type see parts list in order to ensure the safety of the product Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries and normal batteries that contain lead mercury o
91. e field microphone Default 06 07 2006 15 50 null D 3GPP Ca Generic speaker Default 07 13 2006 16 33 null D 3GPP4Ca _ HATS ITU T P 58 Art Mouth Default 06 07 2006 15 47 null D 3GPP Ca HATS Type 3 3 Art Ear Default 06 07 2006 15 52 rull D 3GPP4Ca HATS Type 3 4 Art Ear Default 06 07 2006 15 54 null D 3GPP Ca Induction coil input Default 07 13 2006 18 04 null D 3GPP4Ca Input digital Default 06 07 2006 15 49 null DASGPPACa LAGPITU T P 51 Art Mouth Default 07 13 2006 17 59 null D 3GPP Ca Output digital Default 06 07 2006 15 50 null DASGPPACa Second Type 3 3 Art Ear Default 0741122007 15 09 mul D 3GPP Ca Second Type 3 4 Art Ear Default 07 11 2007 15 09 rull D A3GPPACa Type 1 Art Ear Default 06 07 2006 15 51 null D 3GPP Ca Type 3 2 High Leak Art Ear Default 06 07 2006 15 51 full D 43G Pesca Fig 39 Window for selection of calibrated devices In the combo box lower left a category of devices must be selected Subsequently the table is reduced to available devices in this category At first startup there is only a Default device for each category but when more devices have been created with the New device function a choice will be available in this view In this state a row in the table can be marked with a mouse click on its left end A mouse click on the button Select selects this device for the associated usage 1402 0043 12 31 E 7 1402 0043 12 Acoustic Measurements on
92. e installation check the existence of the subfolder UPV K9x Mobile Phone Tests in C Program Files Rohde amp Schwarz This subfolder must contain 82 files plus 2 more subfolders If the software reports a missing key code at the first start delete folder DASGPP if existing and install the missing key code before starting the software again 12 E 7 Acoustic Measurements on Mobile Phones Test Setup z Microphone tla E Supply a Way E eS e Transformer art mouth TRUTER DOSA DO08 mn HoLa 25 ppan Ko O 0 ts 1 A og G i E G o q o op o o SO OO e_ RF to Mobile Fig 4 Test setup and connection of external components For measurements using artificial voice according to ITU T P 50 or real speech according to ITU T P 501 for distortion tests using a composite source signal CSS as activation signal and for delay tests with CSS as test signal the transformer supplied with option R amp S UPV K9 has to be replaced by a not supplied external power amplifier The power amplifier should have a moderate but stable gain between O dB and 20 dB and a moderate maximum output power between 5 W and 20 W It is essential that the gain is not changed between mouth calibration and sending tests 3GPP TS 26 132 specifies binaural measurement for the test of Handsfree speakerphone devices using a head and torso simulator HATS From Release 8 binaural m
93. e phones update key UPV K9101 UPV K9102 or UPV K9103 required The test signal simulates the spectrum and time structure of human voice without having any semantic content It consists of 10 seconds female voice and 10 seconds male voice Other than with the modulated multisine the reference spectra at the respective inputs of the transmission path are measured in advance and stored in files Therefore the speech spectrum calibration for sending direction is a prerequisite for this test see chapter 3 Calibration To make sure that the spectral transform is performed on the same portion of the test signal during reference spectrum measurement and output spectrum measurement the output spectrum measurement is preceded by a delay measurement employing a sine burst The start of the measurement is then delayed against the playback of the test signal by the measured amount of delay in the transmission path If the transmission path is interrupted e g due to a dropped call the test stops with a suitable warning message 63 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Receiving Frequency Response and Loudness Rating The following three groups of measurement definitions are available as the permissible limit values of the loudness rating depend on the volume set in the mobile phone under test nom Vol checks loudness rating limits for nominal loudness setting and at the same time compliance
94. e product Never use chemical cleaning agents such as alcohol acetone or diluents for cellulose lacquers Operation 1 Operating the products requires special training and intense concentration Make sure that persons who use the products are physically mentally and emotionally fit enough to do so otherwise injuries or material damage may occur It is the responsibility of the employer operator to select suitable personnel for operating the products 1171 0000 42 07 Page 4 Basic Safety Instructions 2 Before you move or transport the product read and observe the section titled Transport 3 As with all industrially manufactured goods the use of substances that induce an allergic reaction allergens such as nickel cannot be generally excluded If you develop an allergic reaction Such as a skin rash frequent sneezing red eyes or respiratory difficulties when using a Rohde amp Schwarz product consult a physician immediately to determine the cause and to prevent health problems or stress 4 Before you start processing the product mechanically and or thermally or before you take it apart be sure to read and pay special attention to the section titled Waste disposal Environmental protection item 1 5 Depending on the function certain products such as RF radio equipment can produce an elevated level of electromagnetic radiation Considering that unborn babies require increased protection pregnant women must be pro
95. e to possible conducted as well as radiated disturbances In this case the operator may be required to take appropriate measures to eliminate these disturbances Class B equipment Equipment suitable for use in residential environments and environments that are directly connected to a low voltage supply network that supplies residential buildings Repair and service 1 The product may be opened only by authorized specially trained personnel Before any work is performed on the product or before the product is opened it must be disconnected from the AC supply network Otherwise personnel will be exposed to the risk of an electric shock 1171 0000 42 07 Page 5 Basic Safety Instructions Adjustments replacement of parts maintenance and repair may be performed only by electrical experts authorized by Rohde amp Schwarz Only original parts may be used for replacing parts relevant to safety e g power switches power transformers fuses A safety test must always be performed after parts relevant to safety have been replaced visual inspection protective conductor test insulation resistance measurement leakage current measurement functional test This helps ensure the continued safety of the product Batteries and rechargeable batteries cells If the information regarding batteries and rechargeable batteries cells is not observed either at all or to the extent necessary product users may be exposed to the risk of explosions fir
96. easurement is also foreseen for binaural headsets The HATS 4128 supplied by Bruel amp Kjaer offers an optional left ear simulator 4159C for binaural measurements The second ear simulator has to be connected to R amp S UPV analyzer input 2 for binaural receiving measurements As this input is also used to connect to the R amp S CMU200 decoder output for sending measurements R amp S 3GPP Mobile Phone Tests R amp S UPV K91 support automatic control of an input switcher R amp S UPZ The connection for automatic input switching is done as shown in Fig 5 1402 0043 12 13 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones a _ SS A A 0d 0 0 0 0 0 0 Power Supply Power Supply Amplifier or Transformer iE NINNE tad mn A RF Connection y Fig 5 Test setup and connection of external components for automatic switching Starting the Application Software After installation the program can be started by double clicking the Icon UPV K9x Mobile Phone Tests or by clicking R amp S UPV Applications gt UPV K9x Mobile Phone Tests in the Programs menu At the first start of the program selection windows appear for the standard according to which the measurements should be made and for the artificial ear and artificial mouth used gt Standard Es el E Please select a standard below JGPP Hands Narrow Allow only selected measurements cne
97. eceeeceeeessueesseeesaees 37 Calibration of Artificial Mouth for Handset Tests o cccoococ o 38 P 50 Speech Spectrum Calibration ooccooccccncconiconiconicanicononos 39 3 E 7 1402 0043 12 Contents Calibration of CMU Speech Codec occcoccccnccccccnccccnconcncnncncnanonnnnnnnnnos 40 Calibration of CMW Speech Codec cooccoccncncccccccccccnccncoconcnonanonononononos 41 Calibration of Ambient Noise Field oocoocccocncoccconncocnccnncconcnonos 42 Calibration of Noise Field for Speech Quality in Presence of Background NOISE estu tidad 44 COMECON Six taa a 44 Establishing the remote control connection between UPV and URP A OO tettinentil Rina neu ea dgunet aliiulet eed Doiudalatiy 45 FOTO QUISO dic gid 45 CONIO AI acts score taster cote ett ee ee aca 45 Starting and stopping the calibration process ccoocccoccconcconnco 45 Preparatory Measurements for Delay Measurement 47 Measurement of Sound Pressure oocccoccccccnccccnccncnnnnnnnns 47 Measurement of Level Change at Microphone Amplifier A O AN A AENEA 47 Measurement of Level Change at Reference Input 48 Delay MeasuremMent ccooccconcconcconcconcconconnnonnnonnnonnnonnnenanenanenones 48 Preparatory Measurements for Equalization oo oo 50 NOISE OOM uns odioso 50 Frequenety Response unica is 50 Total Harmonic Distortion occooccoccconconnconcccncanicnncanonos 51 cabling CNeC
98. ect it and close the window with Ok Prerequisites The calibration of both artificial ears of the HATS is required for performing the calibration of the background noise field Configuration The configuration of the noise field calibration comprises 1 Choice of the calibration method 2 Speaker configuration 3 Bandwidth and tolerance settings 4 Other settings and is done in the Noise Calibration Configuration window This window is called with item Noise calibration configuration in the Options menu The configuration is saved in the settings of the UPV K9x program so that it has to be done at least once and can then be re used as long as the speaker configuration and calibration methods do not need to be changed Starting and stopping the calibration process Calibration is started by selecting the following 45 E 7 Acoustic Measurements on Mobile Phones Calibration Measurement Standards Release Config Meas S Selective Microphone Artificial Ear ORF Eo ERP correction Free field equalization Diffuse Field equalization ID Independent of Direction Equalization Artificial Mouth Artificial Mouth Hands Free Codec Induction coil det WB P 50 Rel andet WE P 50 nc Noite Sending Wii Noise Rec nom nding wide Rel 9 T F F F F F F F F f z H Electric ro i andet WB MMS rr P 501 51 Speech Ref Spectrum andset WE P 50 m P 50 Speech Ref Spectrum
99. ection Activation signal for distortion tests In the sub menu to Activation signal for distortion tests signals can be imported to the test system If more than one imported signal is available it is possible to choose one of them for actual use 19 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Import Activation Signal Browse to an appropriate wave file The file must be recorded in mono with 48 kHz sample rate Maximum permissible length tz 10 seconds Fle Name E AUPYUserMalef 1 1 48kHz way Sample Rate 48000 Hz Mono Stereo Duration 259 Seconds Average Level fo 2113 dEFS Active Level Po A1979 dBFS I Equalize for Selected Artificial Mouth T Immediately select this activation signal Cancel Ok ve Fig 14 Window for import of activation signals Use the Browse button to select a wave file which fulfills the conditions shown on top of the window The selected signal is analyzed and checked for appropriateness Note that a high crest factor of the signal may overdrive the codec or artificial mouth If Equalize for Selected Artificial Mouth is activated the file is immediately equalized for the selected artificial mouth when the Ok button is clicked Otherwise or when the mouth calibration has been re done or a different artificial mouth has been selected in the meantime the signal is equalized automatically immediately before the sending distortion te
100. een values are the averages over all sentences and the grey values are the standard deviations between the sentences ANR Tests using Artificial Voice according to ITU T P 50 as Test Signal sending receiving sidetone and ambient noise rejection tests are alternatively offered with artificial voice according to ITU T P 50 as test signal This version of the ambient noise rejection test requires update key UPV K9101 or UPV K9102 The test signal simulates the spectrum and time structure of human voice without having any semantic content or language specific characteristics It consists of 10 seconds female voice and 10 seconds male voice Other than with the modulated multisine the reference spectra at the respective inputs of the transmission path are measured in advance and stored in files Therefore the speech spectrum calibration for sending direction is a prerequisite for this test see chapter 3 Calibration To make sure that the spectral transform is performed on the same portion of the test signal during reference spectrum measurement and output spectrum measurement the output spectrum measurement is preceded by a delay measurement employing a sine burst The start of the measurement is then delayed against the playback of the test signal by the measured amount of delay in the transmission path If the transmission path is interrupted e g due to a dropped call the test stops with a suitable warning message
101. elow At these frequencies coding yields a sufficiently stable output signal Voice activity detection continues to be active in the mobile phone under test due to this pulsating signal The mobile phone under test is installed in the LRGP ITU T P 76 with the receiver is sealed to the artificial ear or on the HATS The test signal is applied to the input of the R amp S CMU200 speech coder and the SINAD value of the sound pressure in the artificial ear is measured with psophometric weighting according to ITU T G 714 The SINAD value of the sound pressure is measured at levels between 45 dBm0 and 0 dBm0 and compared with the limits given in table 8 of 3GPP TS 26 131 The measurement is performed up to a maximum sound pressure of 10 dBPa in the artificial ear the actual trace may end at an earlier point If the operator desires to see the receiving distortion value at the point exceeding 10dBPa this can be achieved by pressing the add measurement button This causes the measurement to be repeated at 1402 0043 12 79 E 7 Acoustic Measurements on Mobile Phones all specified levels The second measurement is not taken into account for reporting and Pass Fail decision If the measured trace is above the limit line PASS is output otherwise FAIL is displayed 3GPP Distortion receiving mn Receiving signal to distortion ratio dB Receiving signal level dB m0 A Measured A Lower Limit 3GPP HandS Narr
102. ent folder before deleting D 3GPP Note Subsequently all settings in the Options menu and all data entries have to be re done all calibrated devices have to be created and calibrated again 121 E 7
103. ent program controlling the application and D 3GPP 3G_rec_handset_narrow_max mdf specifies a file which defines the test to be executed A list of files for various tests is given separately in the spreadsheed file TestCaseList_23147 xls The file name must be separated from the program name by a space character Thus it is recognized by the client program as a command line parameter Attention Do not attempt to control the UPV K9x software locally while a remotely started test case is running Reading the Results Result values and curves are available in memory buffers in the R amp S UPV firmware according to the following tables 109 E 1402 0043 12 Acoustic Measurements on Mobile Phones Table 4 Assignment of string buffers for result values 34 String buffers can be queried using the remote command SYSTem MEMory STRing lt i gt Table 5 Assignment of trace buffers for result curves Result 1 absolute curve X values Result 2 absolute curve X values Result 2 absolute curve Y values 12 14 16 110 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Trace buffers can be queried using the remote command SYSTem MEMory DATA lt gt Results are also available in files D 8GPP result exp DASGPPrelcurv exp and or DA3GPPlabscurv exp depending on the type of measurement If Options gt Generate temporary image files is activated a screenshot of the last fin
104. eplacing artificial ear ocooocoo 99 Electric connection replacing artificial mouth o 99 Electric connection replacing encoder occooccccccncccncncnoncnononanonnnos 99 Electric connection replacing decoder cccceeeeeeeeeeeeeeeeeeees 99 Performing the measurements cccceececeeeeeeeeeaeeceeeeseeeeaeeeeaes 100 8 Automatic Test SEQUENCES cccoocccccncoccnccocnncnnocannnnanconanonnnnnannnnannnnono 101 Creating and Editing a Sequence occccoccccnccccncnccncncnonnnonnnonononncnnnnos 101 Remote Control of R amp S CMU200 within a Sequence 102 Opening an Existing Sequence occoccccncccccccccncnconcnconcnnnnnnoncnonncnnnnos 103 Running a SCQUGN CC aiii 103 Running a Single Measurement out of a Sequence 008 104 Reporting on Sequence Results oocccocccocccocccccncconoconocanononos 104 9 Reporting Storing Loading and Deleting Results 105 PROS UIE A E 105 Report Setting S esesta r e a a 105 Generating a Single Report coooccccoccncoccccccnccncncnncnconcnnnnnnonononannnnnos 105 Generating a Sequence Report occoccccccccccccccccocccocncocococonononononononos 106 Selection IS COON da eee ee ae 106 PP FOWICW VV FIC OW dscns ke Gh ai eee eea a 106 Stoning and Loading CUVE Sironen n tics 107 ASCILRESUEFIE Saia al it 107 Deleting Res Uli auna aaa 107 10 Remote Controlled Start of Testcases
105. equencies below the 50 Hz third octave which means to set the bandlimit low to about 44 5 Hz For other third octaves the recommended lower band limit is fc 1 122 with fc being the center frequency of the third octave The value of Flatness start at is automatically adapted to an increased lower band limit if required Bandlimit high sets the upper frequency limit for the equalization The default value of 20 000 Hz should not be altered Flatness starts at sets the lower frequency limit for the tolerance check The standard ETSI EG 202 396 1 stipulates a value of 50 Hz Flatness ends at sets the upper frequency limit for the tolerance check The standard ETSI EG 202 396 1 stipulates a value of 10 000 Hz Ear Equalization Combobox Ear Equalization allows to set the equalization for both artificial ears to the equalization applied with the recording of the ambient noise condition Fig 23 Selection of ear equalization Besides diffuse field equalisation DF and free field equalization FF a so called independent of direction ID equalization can be applied This equalization curve must be imported for each artificial ear in use with menu item Calibration ID Independent of Direction b Equalization gt 24 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Fig 24 Import of ID equalization data An average ID equalization curve is provided
106. ereby the measurements are structured into submenus according to the standards to which they belong This allows a quick and easy access to all available measurements Standards Release Config Meas Sequence Report Options Help 65M Type 1 Ear 3GPP Hands and Heads Marrow MMS SGPP Hands and Heads Marrow P S0 Fig 77 SGPP Hands and Heads Narrow MMS Rel 10 3GPP Hands and Heads Narrow P S0 Rel 10 SPP Hands and Heads Wide MMS Rel 6 7 SGPP Hands and Heads Wide P 50 Rel 6 7 3GPP Hands and Heads Wide MMS Rel 8 SPP Hands and Heads Wide P 50 Rel 8 SGPP Hands and Heads Wide MMS Rel 10 SGPP Hands and Heads Wide P 50 Rel 10 SPP Binaural Heads Narrow MMS Rel 10 SPP Binaural Heads Narrow P 50 Rel 10 SGPP Binaural Heads Wide MMS Rel 6 SGPP Binaural Heads Wide P 50 Rel 6 SPP Binaural Heads Wide MMS Rel 10 SGPP Binaural Heads Wide P 50 Rel 10 SGPP HHHF Marrow 3GFP HHHF Narrow Rel 10 SPP HHHF Wide Rel 6 7 3GPP HHHF Wide Rel 8 3GPP HHHF Wide Rel 10 3GPP OTHF and YMHF Marrow 3GPP OTHF and YMHF Narrow Rel 10 3GPP OTHF and YMHF Wide Rel 617 3GPP OTHF and YMHF Wide Rel 6 SPP OTHF and VMHF Wide Rel 10 Configurable Handset and Headset Configurable Handsfree Utilities More ask ohiact Wardi hd soe A asi lt 3GFF Sending Handset P 50 SGPP Receiving Handset P S0 nom vol SGPP Receiving Handset P 50 nom woal Rel 8 SPP Receiving Handset P S0 max vol SGPP Receiving Handset
107. fication of the test Loudness ratings and other result values like total noise level are calculated and displayed in the legend The additional curves and results will appear in the report if item Store results of further measurements had been activated before the measurement was started However limits are not checked for additional measurements This function can e g be used to find the correct volume setting to pass nominal RLR It can further be used for adjustments in the device under test Storing and Loading Curves All curves in the graph can be stored to an ASCII file tra and such curves can be loaded back into the graph For easy import to Excel the csv format is also offered The softkey Store Curve opens a window in which a combo box offers choice between the legends of all curves in the graph The curve associated in which the selected entry is stored to the file with the specified format at the specified location If the Options menu item Store loaded curves to results database is checked loaded curves are stored together with the measurement results and will appear in reports about the measurement Frequency response curves may also be stored as relative UPL compatible trace files 1402 0043 12 99 E 1402 0043 12 Acoustic Measurements on Mobile Phones Storing Curves as Limit Curves With Store As Limit Curve a curve can be selected and stored into a R amp S UPV format limit
108. file with a specified shift in Y axis direction This functionality can be used to generate limit curves from golden devices for evaluation purpose Deleting Additional Curves in the Measurement Graph By pressing or clicking Delete Curve an additional curve in the measurement graph can be removed A window pops up with a combo box in which the curve to be deleted can be selected Note that it is not possible to delete the curve of the first measurement as this is the measurement for which the verdict is given The selected curve disappears from the graph on the screen and is removed from the database such that it does not appear in reports anymore Creating a Report The softkey Create Report causes a report to be prepared The report preview window see below opens and shows the preview of the report Buttons in the preview window allow to print the report or to export it to PDF WORD EXCEL or Rich Text format Closing the Measurement Window The softkey Close closes the measurement window The control is returned to the R amp S UPV K9 main window All relevant data associated with the measurement is imported to the results data A new entry appears for the measurement as new row on the bottom of the overview data grid in the main window 60 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Notes on Handset Measurements Applicability of Measurements and Equipment Depending on the Release The
109. formen sustancias peligrosas o combustibles que deban tratarse como residuos especiales p ej refrigerantes o aceites de motor con intervalos de cambio definidos deben tenerse en cuenta las indicaciones de seguridad del fabricante de dichas sustancias y las normas regionales de eliminaci n de residuos Tenga en cuenta tambi n en caso necesario las indicaciones de seguridad especiales contenidas en la documentaci n del producto La eliminaci n incorrecta de sustancias peligrosas o combustibles puede causar da os a la salud o da os al medio ambiente Se puede encontrar m s informaci n sobre la protecci n del medio ambiente en la p gina web de Rohde amp Schwarz 1171 0000 42 07 Page 14 Quality management and environmental management Sehr geehrter Kunde Sie haben sich fur den Kauf eines Rohde amp Schwarz Produk tes entschieden Sie erhalten damit ein nach modernsten Fer tigungsmethoden hergestelltes Produkt Es wurde nach den Regeln unserer Qualitats und Umweltmanagementsysteme entwickelt gefertigt und gepruft Rohde Schwarz ist unter ande rem nach den Managementsys temen ISO 9001 und ISO 14001 zertifiziert Der Umwelt verpflichtet 1 Energie effiziente ROHS konforme Produkte Kontinuierliche Weiterentwicklung nachhaltiger Umweltkonzepte 1 150 14001 zertifiziertes Umweltmanagementsystem Dear customer You have decided to buy a Rohde Schwarz product This product has been manufactured using
110. frequency response results with handset and headset UEs Call the routine Calibration gt Diffuse field equalization gt Type 3 3 gt From ITU T P 58 Table 3 This procedure needs only be repeated when the 3GPP directory has been renamed or removed Alternatively it is also possible to load individual diffuse field equalization data from a calibration disk This option is not conformant with the standards Calibration of Ear Type 3 4 gt Remove the pinna and the ear canal simulator connect the sound level calibrator tightly to the artificial ear using the short steel adapter and switch the calibrator on Select Calibration gt Artificial ear gt HATS Type 3 4 from the main menu For Head Acoustics HMS Il calibrator B amp K 4231 must be used in conjunction with the short steel calibration adapter The output voltage of the microphone in the ear is measured and the sensitivity displayed with reference to 1 Pa If the voltage measured is below 3 mV or fluctuating by more than 0 2 dB an error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before restarting the calibration The measured reference value is stored in a file on the hard disk and used for all subsequent measurements when the same ear type 3 4 is u
111. h modulated multisine Receiving Handset with modulated multisine eceVving ern Sidetone Masking Rating with Modulated Multisine e Sending with modulated multisine ecelving Peak Acoustic Pressure Level with Signal PeakLevel Distortion receiving andset wideband sending wideband andset wideband andset wideband andset wideband andset wideband Idle channel noise receiving Distortion sending Idle channel noise sending Stability margin Sidetone Distortion generic sending wideband Sending Gain Variation andset wideband Receiving Gain Variation Sending Delay Receiving Delay sending wideband eceng andset Background noise measurement generic Fig 117 Measurement configuration menu Clicking on one of the entries opens a window in which all parameters can be viewed and most of them can be customized Parameters of 3GPP Receiving Handset nom ol Template Files No File Name Type Upper margin dB Lower margin dB 1 3GPP_Handset_Recelving_ Mandatory up 0 2 3GPP_Handset_Receiving_ Mandatory lo 0 3GPP Receiving Handset nom Vol Description Narrow band measurement of receiving sensitivity frequency response and receiving loudness rating of a handset using modulated multisine according to ITU T P 501 ALA check for nominal volume setting i Add Number 1 Delete Edit Parameters Nol Name Default Value Fixed 1 DAFP Boolean False Tru
112. he graph of a measurement macro see above This allows easy import into spreadsheets as well as direct comparison of curves measured at different times or places Measured curves can also be stored in a R amp S UPV limit file for use as a limit curve either in a R amp S UPV sweep graph or in the graph of a R amp S UPV K9 K91 window This allows e g to derive tolerance schemes from golden devices The measured curve can be arbitrarily shifted before being stored Shit Curve by T oo de aroa e Fig 128 Input window for defining a shift of a measured curve for storage as limit curve Furthermore curves can be exported from the main results window by marking the result in the data grid right clicking on it and choosing the item Save curve of selected row as in the context menu ASCII Result Files When the item Generate temporary export files in the Options menu is checked the standard tests generate curve exp or abscurve exp and relcurve exp and result exp files similar to those generated by R amp S UPL B9 These files are always deleted and overwritten by subsequent tests This feature is provided only for compatibility reason It is not available in all measurement types Deleting Results It may be desirable to delete results of selected measurements from the result file e g because the measurement was repeated due to a missing call to the mobile a wrong setti
113. he sidetone which would result in an annoying local echo in the handset or headset The test according to release 8 and 9 produces a short click in the artificial mouth and analyzes the amplitude over time response at the artificial ear starting from the time when the click was produced at the artificial mouth The first occurring maximum after approx 1 ms is associated with the acoustic propagation from the HATS mouth to the HATS ear There may be more maxima during the first milliseconds due to different propagation paths around the head The time difference between the last occurring maximum exceeding a pre defined level difference to the noise floor in the observed period and the first peak is defined as sidetone delay This value must not exceed 10 ms If no significant maximum is found before 8 ms from the start of the click at the artificial mouth the sidetone delay is defined to be smaller than 8 ms In the measurement window lt g8ms is displayed as result whereas in the report the value will be simply displayed as 0 ms 3GPP Sidetone Delay SPL Art Ear dBPa o ai Ud El Pass 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 Delay ms Measured Delay lt 8 ms HATS Type 3 3 Art Ear CMU CBT Save Curve as Enter cose za Load Curve lan ie M s a A art Comment Delete Curve Create Report Close Fig 86 Typical sidetone delay result according to release 8 and 9 From
114. his point is adjusted to 28 7 dBPa For the last step the reference microphone is returned to the MRP and the level and spectrum at the MRP are measured as reference for the transfer function calculation The mouth calibration for hands free tests is started with the menu item Calibration gt Artificial Mouth Hands Free This procedure comprises the mouth calibration for handset tests and has also effect on subsequent handset tests with the same individual artificial mouth Utilites Measurements This item of the Standards menu contains useful measurements which are either from other standards or for checking test conditions Sidetone Distortion A sidetone distortion test is specified in 3GPP TS 51 010 30 8 for measurements using the DAI As the downlink conveys only silence during this test it is however more or less independent of the kind of transmission between system simulator and mobile The sidetone distortion test determines 3 order harmonic distortion at a given set of frequencies in the case of TS 51 010 at 315 500 and 1000 Hz with a level of 4 7 dBPa at the MRP The third order harmonic distortion is required to be less than 10 20 dB at all frequencies Sidetone Distortion GSM co 2 a Mm E Do 2 wn 1000 Upper Lim Pass Frequency Hz x Measured AA Upper limit 3GPP HandS Narrow Type 3 2 Low Leak ArtEa CMU CBT Sample Obiect Save Curve as Add Ente
115. hout mobile phone if the hands free or headset connection of a mobile phone is to be measured without hands free kit or headset respectively In these cases either coder and decoder or artificial ear and artificial mouth may be replaced by direct electrical connections to the R amp S UPV To use electric connections select Electric connection in the respective item of the Options menu Calibration values for electric connections Electrical connections cannot be calibrated Instead a virtual sensitivity has to be entered for each type of electrical connection under Calibration gt Electric connections gt Electric connection replacing artificial ear R amp S UPV Analyzer input 1 is directly connected to the earpiece amplifier output A nominal sensitivity of the receiver earpiece speaker for which the circuit is intended has to be entered in dB re 1 Pa V Electric connection replacing artificial mouth R amp S UPV generator output 1 is directly connected to the microphone input of the mobile phone circuit A nominal sensitivity of the microphone for which the circuit is intended has to be entered in dB re 1 V Pa Electric connection replacing encoder R amp S UPV generator output 2 is directly connected to a earpiece or headset speaker or to the speech input of a hands free kit A nominal full scale output voltage output voltage corresponding to digital full scale of the circuit intended to drive the
116. iciones diferentes a esta definici n en otras reas econ micas o en aplicaciones militares Por eso se deber tener en cuenta que las palabras de se al aqu descritas sean utilizadas siempre solamente en combinaci n con la correspondiente documentaci n del producto y solamente en combinaci n con el producto correspondiente La utilizaci n de las palabras de se al en combinaci n con productos o documentaciones que no les correspondan puede llevar a interpretaciones equivocadas y tener por consecuencia da os en personas u objetos Estados operativos y posiciones de funcionamiento El producto solamente debe ser utilizado seg n lo indicado por el fabricante respecto a los estados operativos y posiciones de funcionamiento sin que se obstruya la ventilaci n Si no se siguen las indicaciones del fabricante pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte En todos los trabajos deber n ser tenidas en cuenta las normas nacionales y locales de seguridad del trabajo y de prevenci n de accidentes 1171 0000 42 07 Page 9 Instrucciones de seguridad elementales Si no se convino de otra manera es para los productos Rohde amp Schwarz v lido lo que sigue como posici n de funcionamiento se define por principio la posici n con el suelo de la caja para abajo modo de protecci n IP 2X uso solamente en estancias interiores utilizaci n hasta 2000 m sobre el nivel del mar transporte hasta
117. ied Maximum Iteration Count for Equalization Steps The following control can be used to set the number of iteration steps for the equalization of individual speakers and of speaker pairs Fig 31 Entry of maximum iteration count Additional iteration steps improve the equalization accuracy on the cost of increased measurement time The iteration process continues until either a flatness better than 1 dB is achieved or the maximum number of iteration steps id reached More than three iteration steps cannot be expected to improve the equalization significantly Maximum input number is 5 iterations A value of 1 disables iteration altogether In this case the equalization function is calculated from the first measured frequency response 26 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Final Spectrum Check If the following tick box is activated the equalization of all ambiences is finally checked and the flatness and absolute level difference is determined Fig 32 Checkbox for final equalization test of all ambient noise files This measurement takes approximately 20 minutes and can also be started after the calibration has been finalized The result of this check is stored in the database and appears in the report of the calibration process A Fail in a single ambience only has influence on the total verdict if the ambiences had been chosen to be equalized individually see above Refinement of Total Spec
118. ifications it can be skipped if a valid calibration data set is already available and if the speaker layout and the HATS position has not been changed in the meantime The latter is not decisive for the program it is therefore the responsibility of the user to repeat the delay calibration where necessary Delay compensation gt Currently these distances between HATS and speakers are set SA 2 480 m From HATS to Speaker Front Left 2 187 m From HATS to Speaker Rear Left 2 544 m From HATS to Speaker Front Right 2 265 m From HATS to Speaker Rear Right 2 200 m From HATS Eo Subwoofer Recalibration is required if position of HATS or any speaker has been modified since last Calibration Recalibrate Yes No Cancel Fig 60 Message querying the start of the delay calibration To perform the delay measurement the reference signal from channel 10 of the UPP generator is connected to analyzer channel 1 of the UPV and the signal from the respective ear is connected to analyzer channel 2 via a preamplifier Which ear is currently being measured and must therefore be connected is shown in dialog boxes 48 E 1402 0043 12 Acoustic Measurements on Mobile Phones Delay Measurement sl x Connect UPF generator chi0 to UPY analyzer chi Right Ear to UPY analyzer che Fig 61 Instruction for connections during delay measurement This box must be confirmed after reconnection of the UPV analyzer only then are the measurement and
119. ines below require as pre requisite that a device for the respective usage has been generated and selected To simplify the procedure for the case that it is not intended to use multiple devices of the same category nor to include information about the used devices into a report there is a Default device selected for each device type or category after the first start of the program An overview of all selected calibration devices together with the calibration values is given under the menu item Calibration gt Show selected devices 32 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Microphone Calibration gt Insert the measuring microphone fully into the adapter of the sound level calibrator and switch on the calibrator A 12 adapter or a adapter is required according to the microphone diameter Note After inserting the microphone wait about 10 s to allow for static pressure equalization gt Call the test routine with Calibration gt Microphone gt Free field or Calibration gt Microphone gt Diffuse field from the main menu depending on the microphone Microphone calibration Connect microphone to analyzer input 1 Insert microphone Into calibrator using adapter UCO270 and switch on calibrator F Calibration level increased by 20 dB not validated Delay start by i seconds Cancel Fig 41 Initial window of microphone calibration E For calibrators pr
120. ing the calibration The measured reference value is stored in a file on the hard disk and used for all subsequent measurements when the same ear type 3 2L is used as currently selected Reading the DRP ERP Correction Data of the Artificial Ear of Type 3 2L The frequency response of the artificial ear of type 3 2L is supplied on a floppy together with the artificial ear The data is used for transforming the measurement values from the drum reference point to the ear reference point Connect a USB floppy disk drive with the calibration disk to the R amp S UPV copy the file OES LL ADA from the manufacturer s calibration disk to a USB stick or a CD ROM or make this file available on a network drive via LAN Call the routine Calibration gt DRP to ERP Correction gt Type 3 2 Low leak Browse to the file OES LL ADA and click Open The calibration file is read The modified data is stored on the R amp S UPV hard disk This procedure needs only be repeated after a change of the calibration data e g after a recalibration of the ear by the manufacturer or when the 3GPP directory has been renamed or removed Calibration of Ear Type 3 2 High Leakage gt gt Connect the sound level calibrator tightly to the artificial ear using the adapter DP0939 and switch on the calibrator Select Calibration gt Artificial ear gt Type 3 2 High Leak from the main menu For calibrators providing a soun
121. ings ini from the folder UPV K9x software on the installation CD to drive D on the R amp S UPV hard disk drive e g to a folder named D R amp S Software UPV K9x Version 3 0 3 Run the file UPV K9x_30356 msi to start the installation Follow the instructions of the installer on the screen If prompted to do so also run dotnetfx35 exe Subsequently run also MCRIinstaller exe and RsVisaT arget msi MCRInstaller has to be launched in any case even if the software UPV K9y for option R amp S UPV K92 or the previous version 2 3 1 47 of R amp S UPV K9x is installed on the R amp S UPV as this software requires a newer version of the Matlab runtime Attention Once installed the R amp S Visa must not be uninstalled To have full control over minimized windows it is recommended to set the windows taskbar to Auto hide on top of other windows Right click on the Windows Start button and click properties Open Explore Search Properties Open All Users Explore All Users Fig 2 Context menu for taskbar 11 E 1402 0043 12 Acoustic Measurements on Mobile Phones In the properties window click tab Taskbar and activate Auto hide the taskbar and Keep the taskbar on top of other windows Click Apply and close the window Taskbar and Start Menu Properties mi Na 1 23 PM Fig 3 Properties window for taskbar Verification of the Installation After th
122. inted with every report again The size of diagrams in the report can be scaled between 100 approx page width and 50 Generating a Single Report A report on a single measurement result can be generated from the window of a measurement macro by clicking or pressing the softkey Generate report From the result overview of the main window a report on a single measurement can be generated by marking the row with the selected result by clicking on the row header to the left see Fig 12 right clicking into the data grid and selecting Generate report from the context menu Subsequently data associated with the selected measurement is assembled a graph for existing curve data is generated and the preview window is opened Depending on the amount of measurement data this may take a few seconds 105 E Acoustic Measurements on Mobile Phones Generating a Sequence Report A report on a sequence of measurements can be generated from the sequence window by clicking or pressing the softkey Report sequence Once the sequence window has been closed a report on the last executed sequence can be generated by selecting Report gt Last sequence from the main menu Reports about previous sequences can be generated as single reports on the measurements of this sequence as all results appear in the overview data grid in the main window Selection Report A report on a selection of measurements can be generated
123. ion or to perform a further iteration This dialog box can be suppressed by activating the following option in the noise calibration configuration window Accept single level deviation m Fig 71 Checkbox for suppressing the message caused by excessive single level deviation Equalization Equalization is performed in two steps e Individual equalization of each speaker e Pairwise equalization of the two left and the two right speakers Each of the two steps is performed with a maximum number of iteration steps which is selected in the configuration dialog box three iterations are usually enough to achieve a flatness of 1 dB If the all speaker equalization check does not result in a PASS the user can try to achieve a PASS by repeating this measurement This may be successful if for example the tolerance violation is only slight or unwanted noise falsified the measurement Equalization check Pink Noise S x verification of all speakers including subwoofer Failed Left Spectrum out of tolerance 6 23 dB Right Spectrum out of tolerance 6 34 dB total level deviation left 3 2 dB total level deviation right 0 39524 dB Please select ABORT to abort equalization and improve the set up arrangement recommended RETRY to repeat this check IGNORE to proceed with next equalization step Retry Ignore Fig 72 Message for failed verification of all speaker equalizations The associated dialog box can be suppres
124. ion tests w Show operator instructions CMU remote control CMU Subsystem Noise calibration configuration UFF remote control Input switcher Report settings Generate temporary export Files Generate temporary image Files Store results of Further measurements w Do not change scale for Further meas Store loaded curve data to results Enable remote control Fig 13 Options menu The Options menu in the main window allows changing a set of general settings like ear type and mouth type used which are valid for all or at least a plurality of the tests Standard Standard allows selecting one of the available standards Measurements belonging to this standard will be checked in the measurement menu If Allow only standard measurements is checked it is not possible to start single measurements which do not belong to the standard Select standard at startup If Select standard at startup is checked the selection window for the standard is opened at each start of the program Release Release opens the window to select type of tested device codec bandwidth test signal and Release of 3GPP standards TS 26 131 and 26 132 to be applied Any change in these settings will re build the Release menu with the applicable test cases Select release at startup If Select release at startup is checked the selection window for the Release menu is opened at each start of the program 18 E 14
125. is set to nominal receiving loudness the STMR should be within 13 dB and 23 dB according to 3GPP TS 26 131 when the LRGP method is applied With the HATS method the target STMR is between 12dB and 20dB at nominal volume setting At all other volume settings the STMR must not be below 8 dB with the HATS method From version 8 2 and 9 2 of TS 26 131 the target STMR range for the HATS method has been changed to within 13 and 23 dB From Version 8 2 and 9 1 of TS 26 132 the weighting factors for unsealed condition of ITU T P 79 Table B2 have to be used for the STMR calculation These changes are taken into account with the test cases according to Rel 8 2 9 and later 67 E 7 Acoustic Measurements on Mobile Phones gt 3GPP Sidetone Masking Rating Sidetone gain dB re 1 Pa Pa Mm o 1000 Frequency Hz Y Measured STMA 26 07 dB 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Save Curve as Enter cose Seve Cuve a Load Curve iets Me Maui Comment Delete Curve Create Report Close Fig 85 Typical measurement of sidetone masking rating STMR Tests using Artificial Voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as Test Signal Sidetone tests are alternatively offered with artificial voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as test signal update key UPV K9101 UPV K9102 or UPV K9103 required for P 50 signal u
126. ished test is available in DASGPPUmage TIF The command for the file transfer is for the example of the results file MMEM DATA D 3GPP result exp All results are stored in the database However it is not possible to change the test object remotely The results can be identified later by the test time given in the result exp file Determining the Termination of a Measurement A running test is indicated with bit 13 of the Operation register in the status system set It is recommended to configure a service request on the GPIB for a negative transition of this bit STAT OPER NTR 8192 STAT OPER ENAB 8192 SRE 128 A service request will be issued as soon as the test has terminated To avoid obsolete result files to be downloaded from the R amp S UPV existing result files can be deleted before the start of the measurement using the commands MMEM DEL D 3GPP result exp MMEM DEL D 3GPP relcurv exp MMEM DEL D 3GPP abscurv exp Note that an attempt to delete a non existing file will lead to an entry in the error queue The error queue can be flushed using the query SYST ERR until the response is 0 No error Alternatively existing files can be overwritten by uploading empty files with the same name Downloaded files can then be checked for their size before they are processed further to determine whether they are empty dummy files For further details on remote control of the R amp S UPV via
127. istribution of the energy in the chosen noise condition this method cannot be generally recommended Speaker configuration Currently only the following two configurations are supported A Four full range speakers without subwoofer Fig 20 Settings for using four speakers without subwoofer 2 Four full range speakers with one subwoofer Fig 21 Settings for using four speakers with one subwoofer The speakers have to be connected as follows Full range speaker front left UPP generator channel 3 Full range speaker rear left UPP generator channel 4 Full range speaker front right UPP generator channel 5 Full range speaker rear right UPP generator channel 6 The subwoofer if existing can be connected to one of the channels 7 9 according to the configuration setting 23 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Bandwidth and tolerance The permissible tolerance of the equalized spectrum is stipulated by the standards to be 3 dB and cannot be changed For special cases it is however possible to raise the lower end of the tolerance template if the room has acoustic drawbacks standing waves structure borne noise which cannot be improved with acoustic means Fig 22 Bandwidth and tolerance settings Bandlimit low limits the transmission frequency range of the speaker setup by applying a highpass filter This sets the lower end of the equalized frequency range It is recommended to suppress fr
128. k speaker which impairs the frequency response most is determined by switching off the other crosstalk speaker Starting with this speaker the four crosstalk speakers are equalized again individually next is the other speaker on the same side followed by the next worse speaker until the interaction of all speakers is below the tolerance limit or repeated equalization of all four speakers was unsuccessful e f this equalization step was unsuccessful adjustment with the direct speakers is attempted Once again the direct speaker which impairs the frequency response most is determined Starting with this speaker the four direct speakers are equalized again individually until the interaction of all speakers is below the tolerance limit or repeated equalization of all four speakers was unsuccessful lf this equalization step is also unsuccessful equalization has definitively failed and must be repeated with improved room properties 53 E 7 Acoustic Measurements on Mobile Phones 4 Data Entry for Reporting 1402 0043 12 Operator Under Data gt Operator an operators name can be entered which is stored in association with all calibration and measurement results If Operator is activated in the report settings the name will appear in all reports about these measurements Test object Under Data gt Test object gt New a description of the device under test can be entered Test Object Name m Type m
129. l maxima to be averaged can occur at different frequencies during averaging This version of the idle channel noise test requires update key UPV K9102 1402 0043 12 82 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones gt 3GPP Idle Channel Noise Sending Rel 10 Sending Noise 79 18 dBmO P H Pass 90 29 dBm0 P oise lt 64 dBmD P Spectrum Sent by Mobile dBmO P 1000 Frequency Hz x Measured 1 4 Measured 2 x Measured 3 4 Measured 4 x Measured 5 HATS Type 3 3 Art Ear CMU CBT Old UMTS Mobile Save Curve as Enter Save Cure as Load Curve E Mea pe ai ark Commer Delete Curve Create Report Fig 103 Sending noise measurement according to release 10 Idle Channel Noise Receiving The sound pressure in the artificial ear is measured with the phone set up in a quiet environment The mobile phone under test is installed in the LRGP ITU T P 76 with the receiver sealed to the artificial ear or mounted on the HATS The sound pressure in the artificial ear is measured with A weighting on To keep the mobile phone under test in the normal operating mode a pulsed signal is applied to the speech coder input The noise level is measured during the signal pauses The voice activity decoder is activated and the mobile phone remains in the active normal receiving mode With rated loudness set on the mobile phone the sound pressure should not exceed 57 dBPa A In this case use test 3G
130. la instalaci n No utilice nunca el producto si est da ado el cable de conexi n a red Compruebe regularmente el correcto estado de los cables de conexi n a red Aseg rese mediante las medidas de protecci n y de instalaci n adecuadas de que el cable de conexi n a red no pueda ser da ado o de que nadie pueda ser da ado por l p ej al tropezar o por un choque el ctrico 1171 0000 42 07 Page 10 10 11 12 13 14 15 16 17 18 Instrucciones de seguridad elementales solamente esta permitido el funcionamiento en redes de alimentacion TN TT aseguradas con fusibles de 16 Acomo maximo utilizacion de fusibles de mayor amperaje solo previa consulta con el grupo de empresas Rohde amp Schwarz Nunca conecte el enchufe en tomas de corriente sucias o llenas de polvo Introduzca el enchufe por completo y fuertemente en la toma de corriente La no observaci n de estas medidas puede provocar chispas fuego y o lesiones No sobrecargue las tomas de corriente los cables alargadores o las regletas de enchufe ya que esto podr a causar fuego o choques el ctricos En las mediciones en circuitos de corriente con una tensi n U gt 30 V se deber n tomar las medidas apropiadas para impedir cualquier peligro p ej medios de medici n adecuados seguros limitaci n de tensi n corte protector aislamiento etc Para la conexi n con dispositivos inform ticos como un PC o un ordenador industrial debe c
131. lease 9 version 9 2 of 3GPP TS 26 132 a CSS activation Signal is recommended for test of narrowband and wideband terminals see previous section about sending distortion tests Alternatively an activation signal specified by the terminal manufacturer may be used Update key UPV K9101 or UPV K9102 is required for this version of the distortion test The UPV K9x software provides the CSS activation signal as a default However before first use the signal has to be imported using Options gt Activation Signal gt Import see Chapter 2 This step checks the conditions on the wav file and calculates the active level of the signal With the same menu item also other wave files can be imported for use as activation signal The wav files must be mono with 48 kHz sampling frequency and have a duration of 10 seconds or less If more than one activation signal is imported at the same time the signal to be used can be globally chosen with menu item Options gt Activation Signal gt Select In addition the measurement definition for this test case has a parameter to specify the file name without extension of the activation signal to be used lf this parameter is provided it overrides the global choice of the activation signal Thus the test can be repeated several times within a sequence using different activation signals The test macro for distortion tests with activation signals from wav files also provides a spectrum display of the
132. lied To keep the mobile phone under test in the normal operating mode a pulsed signal is applied The noise level is measured during the signal pauses The voice activity decoder VAD is activated and the mobile phone remains in the active normal sending mode The idle noise level should not exceed 64 dBmOp The measured noise voltage is also displayed as a spectrum making it easier to find causes if the limit value is exceeded 3GPP Idle channel noise sending iof x CCITT weighted spectrum dB 1 1000 Frequency Hz E Measured Noise 77 90 dBmO P 3GPP HandS Narrow Type 3 2 Low Leak rt Ea CMU CBT Sample Object Save Curve as Add Enter Load Curve FTE PARA Comment Delete Curve Create Report Close Fig 102 Typical result of sending noise measurement The idle channel noise test employs a sinewave activation signal to activate the sending path of the mobile To avoid the activation signal leaking into the measurement a delay measurement is performed first If the signal path is interrupted e g due to a dropped call the measurement is aborted with a suitable message From release 10 of 3GPP TS 26 132 idle channel noise measurements also comprise the determination of a spectral maximum to detect single frequency disturbances The spectral maximum is determined from a 8192 points FFT in a 48 kHz sample rate system The test system averages five subsequent measurements whereby spectra
133. ll Rate Data 9600 Speechcod Handset Low H Fate Verson2 m GSMs00 Overview GSMso00 Connection Control E Speechcod Handset Low H 114 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Selection of the Bit Stream Handset Low setting for the measurements or Decoder Cal and Encoder Cal for the calibration sa GSMo00 overview esheets GSM900 Connection Control E Signal On Full Rate Version 2 Speechcod Handset Low Speechcod Handset Speechcod Handset Low Codec Cal Encoder Cal Decoder Cal BCCH and TCH H 3 62 947 4 mez 115 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Typical setting with EFR speech coder corresponds to AMR 12 2 for measurements in the call established status GSMo00 overview GSMs00 Connection Control E Call Established Full Rate Version 2 Ml Speechcod Handset Low Settings for WB AMR GSMooo Overview GSM9o00 Connection Control Signal On Full Rate Version 2 H AMR Half Rate GMSK AMR Half Rate 8PSK AMR WB Full Rate GMSK AMR WB Full Rate 8PSK AMR WB Half Rate 8PSK Speechcod Handset Low 116 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Settings for UMTS WCDMA FDD Selection of mode E WCDMA cpp ii Modulation de ue Menu Select Basic Functions Non Signaling Power 3G UMTS User Equipment gt Signalling Modulation PsWCDMAFDD
134. ly if both the curve and the loudness value are within tolerances 3GPP Sending Handset Frequency Response Margin 2 98 dB Sending sensitivity dB re 1 V Pal ra o 1000 Frequency Hz LA Measured SLA 9 55 dB A Upper limit AA Lower limit 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Save Curve as Enter T Seve Curve as Load Curve ana Ede Me Pain C mment Delete Curve Create Report Close Fig 83 Sending frequency response with SLR value displayed 1402 0043 12 62 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Sending Tests using Artificial Voice according to ITU T P 50 as Test Signal Modulated multisine as test signal is proven to pass GSM and 3GPP codecs enhanced full rate and AMR adaptive multi rate with 12 2 kbit s without significant degradation However most recent background noise reduction algorithms employ more sophisticated indicators than just variation over time to distinguish between voice signals and background noise signals As a consequence the spectrum of the modulated multisine signal may be altered by such algorithms which results in a change in the measured frequency response For this reason all sending receiving sidetone and ambient noise rejection tests are alternatively offered with artificial voice according to ITU T P 50 as test signal although background noise reduction is mainly employed in the sending path of mobil
135. message can be deactivated with checking tick box Accept single level deviation Fig 27 Deactivation of window prompting to accept a level tolerance 25 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Harmonic Distortion Limit A violation of the harmonic distortion specified in Max THD can be a sign for clipping in a speaker due to overrange Fig 28 Entry of THD limit If a speaker generally has higher distortion this value can be increased lf a THD value above the specified limit is detected the operator has the following options 1 Reduce the gain settings in the speaker and repeat the measurement 2 Cancel the calibration process reduce the setting in Maximum output level and restart the calibration process Fig 29 Entry of THD limit 3 Accept the observed THD value and continue without modification of parameters Additional Delay Modification for Each Speaker According to ETSI ES 202 396 1 in all test rooms each loudspeaker signal should be delayed additionally with an individual value in order to increase the diffusity of the noise field and avoid comb filter effects The operator can modify the individual delays which are added to the delays determined in the delay measurement step Maximum allowed value is 50 ms Fig 30 Entry of additional speaker delay It is also possible to disable the additional delay Then only the delays determined in the delay measurement step are appl
136. n dB whereby n is the number of noise sources 3G Ambient Noise Adjustment ALO x Coarse 6 dBPa 4 22 Fine p Diffuse field microphone CMU CBT E A een dl a ad Fig 49 Measurement window for level adjustment The left thermometer column gives a coarse overview The right column has an enlarged scale for fine adjustment The numeric field in the centre shows the numeric value The continuous level measurement can be aborted by clicking Stop Adjustment 1402 0043 12 43 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Once the noise field has been adjusted the result can be documented by pressing Start Measurement Although there is no calibration value to be used in the ambient noise rejection measurement the level is stored and can be included for reference in the measurement report 3G Ambient Noise Adjustment Frequency Response Margin 5 70 dB oo n 2 E 5 Dv a DU pu 2 pr T o Frequency Hz Y Measured Noise 23 78 dBPalA Upper limit PY Lower limit No Standard Diffuse field microphone CMU CRTU Save Curve As Add Enter Save Curve As Load Curve a Pe Measurement Comment Change Scale Create Report Close Fig 50 Result of ambient noise calibration Calibration of Noise Field for Speech Quality in Presence of Background Noise Test Connections Fig 51 Setup for background noise calibration Connec
137. n error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before restarting the calibration The reference value measured is stored in a file on the hard disk and used for all subsequent measurements when the same artificial ear type 1 is used as currently selected Calibration of Ear Type 3 2 Low Leakage gt gt Connect the sound level calibrator tightly to the artificial ear using the adapter DP0939 and switch on the calibrator Select Calibration gt Artificial ear gt Type 3 2 Low Leak from the main menu For calibrators providing a sound pressure level of 114 dB 10 Pa the checkbox Calibration level increased by 20dB must be checked In all other cases the checkbox must remain unchecked 34 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones The output voltage of the microphone in the ear is measured and the sensitivity displayed with reference to 1 Pa If the voltage measured is below 3 mV or fluctuating by more than 0 2 dB an error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before restart
138. n regular intervals After the noise field calibration the artificial mouth and the artificial ear must be installed again for the actual measurement of ANR The MRP must be installed at the same position as the reference microphone had during the calibration of the noise field The mobile phone under test is installed in the LRGP ITU T P 76 or on the HATS ITU T P 58 If installed on the LRGP the receiver is sealed to the artificial ear Set up a call to the R amp S CMU200 and set the bit stream to Handset Low GSM or the dedicated channel voice to Speechcodec Low WCDMA At first the noise spectrum picked up by the phone and sent on the uplink is measured After completion of the measurement the request to switch off the noise field will be displayed on the screen If this is confirmed the speech sending sensitivity will be measured automatically and the ANR value will be calculated afterwards The minimum value in the tests named w 3 dB uncert allow is 3 dB In all other ANR tests the minimum requirement is O dB 85 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones 3GPP Ambient Noise Rejection DELSM dB 1000 Frequency Hz Y Measured ANR 2 06 dB 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Seve Cuve a Load Curve iat oe M eee id Delete Curve Create Report Close Fig 106 Typical result of ambient noise rejection measurement
139. ncountered under normal conditions involving an acoustic path between mouth and ear Up to release 7 0 the STMR can only be measured according to standard using ear type 3 2 low leakage 3GPP STMR LRGP Method Up to release 4 ear type 1 may alternatively be used for 3GPP TS 51 010 only 3GPP GSM Rel 4 Sidetone Masking Rating For these tests the mobile phone under test is installed in the LRGP ITU T P 76 and the receiver is sealed to the artificial ear From release 7 1 it is also possible to use ear type 3 3 or 3 4 for this test 3GPP STMR HATS Method Nom Vol has to be passed in the nominal setting of the user volume control 3GPP STMR HATS Method All Vol Steps has to be passed in all other settings of the volume control From release 9 either ear type 3 3 or 3 4 has to be used from release 10 ear type 3 3 is mandatory The artificial mouth generates a test signal with a sound pressure of 4 7 dBPa at the MRP mouth reference point and the sound pressure is measured in the artificial ear With ear types 3 2 3 3 and 3 4 DRP ERP correction is applied The attenuation of the sidetone path is determined at each frequency according to table 1 of ITU T P 79 and the sidetone masking rating STMR is calculated according to formula 5 1 of ITU T P 79 with the weighting factors of table 3 of ITU T P 79 taken into account In addition the gain of the sidetone path is displayed as a curve When the phone
140. nel Noise Rec max Yol Rel 8 3GPPSTMR HATS All ol Steps Wideband 3GPP Echo loss with training User volume to min 3GPP Receiving Handset min Yol Wideband 3GPP STMA HATS All Vol Steps Wideband 3GPP Stability margin 3GPP Echo loss with training 3GPP Ambient Noise Rejection Wideband Rel 8 3GPP Binaural HeadS Wide Rel 8 3GPP HHHF Narrow 3GPP HHHF Wide Rel 6 7 3GPP HHHF Wide Rel 8 3GPP DTHF Narrow 3GPP DTHF Wide Rel 6 7 3GPP DTHF Wide Rel 8 Configurable Handset Configurable Handsfree Utilities Messages and Control x Sequence HATS Type 3 3 Art Ear CMU CBT Wideband Test Mobile Tio first Stop iont aeons Repeat last Report measurement Start sequence sequence MEP SE Measurement Sequence Save sequence Save and close Fig 122 Sequence window Clear Check all Uncheck all Save sequence as Close Initially the right checked list box is empty The tree view box on the left side displays all available measurement definitions structured according to the standards similar to their order in the Standards menu A measurement is appended to the sequence by highlighting it in the tree view box on the left side and clicking the Append button Subsequently a measurement which is highlighted in the checked list box on the right side can be moved within the sequence using the
141. ng distortion measurement according to release 6 0 0 and onwards omits levels below 25 dB and starts at high test tone levels gradually reducing the level For this release use 3GPP Distortion sending Rel 6 for earlier releases use 3GPP Distortion sending Rel 4 5 The measurement is performed up to a maximum sound pressure of 10dBPa at the artificial mouth if the value 10 dB relative to ARL with 10 dBPa cannot be attained The actual trace may therefore end at a lower pressure This occurs for mobile phones under test which have a low sensitivity in the transmit direction If the measured trace is above the limit line PASS is output otherwise FAIL is displayed 76 E 7 Acoustic Measurements on Mobile Phones 3GPP Distortion sending Rel 6 Sending signal to distortion ratio dB 10 Sending signal level dB relative to ARL SA Measured x Lower Limit 3GPP HandS Narrow Type 3 2 Low Leak rt Ea CMU CBT Sample Object Save Curve as Enter T Seve Curve os Load Curve ie tse Me Kapit Comment Delete Curve Create Report Close Fig 95 Sending distortion measurement For tests in WB AMR mode starting from release 8 of 3GPP TS 26 131 and TS 26 132 additional measurements are performed at the frequencies of 315 Hz 408 Hz 510 Hz and 816 Hz with a SPL of 4 7 dBPa at the MRP Other than in the previous version of the test the levels are not defined relative to ARL but as absolute SPL at the MRP A
142. ng etc To delete the result of a particular measurement mark the row for the selected measurement in the data grid of the main window by clicking on the row header to the 107 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones left right click into the data grid and select Delete result from the context menu After confirmation by the operator the selected row of the result overview will be deleted from the result file together with all associated data A set of results may be selected in the Select column of the results data grid and commonly deleted using the context menu item Report Selection gt Delete Selected Results 108 E 7 Acoustic Measurements on Mobile Phones 10 Remote Controlled Start of Testcases via GPIB 1402 0043 12 Preparations Start the K9x test program on the R amp S UPV In the Options menu deactivate item Show operator instructions and activate Generate temporary export files If it is desired to download screenshots from the R amp S UPV to the host activate also Generate temporary image files in the Options menu Activate Enable remote control in the Options menu Do all necessary settings and calibrations as would be done for manual control Starting a Measurement A measurement can be started with remote command SYST PROG EXEC C ControlK9 exe D 3GPP 3G_rec_ handset narrow _max mdf wherein ControlK9 exe is the cli
143. nk handler 1 in the R amp S CMU200 Depending on the CMU hardware link handler 2 in the R amp S CMU200 can also be used for GSM in this case the supplied adapter must be inserted between the cable and the speech connector on the R amp S CMU200 1402 0043 12 Acoustic Measurements on Mobile Phones Note lf the CODEC calibration fails the adapter has most likely to be inserted Note The R amp S CMU200 connects pin 1 of the R amp S UPV generator output to the equipment grounding conductor of the mains If an external power amplifier is used care must be taken that the external power amplifier does not connect R amp S UPV generator output pin 2 to the equipment grounding conductor of the mains If available a balanced connection to the power amplifier should be preferred Attention An external power amplifier should be switched on after the R amp S UPV K9x program has been started and switched off before the program is ended This prevents the artificial mouth from undue power loading by setups which are loaded external to the application Note An external USB keyboard and a mouse must be connected to the R amp S UPV Caution R amp S UPV K9x does not support the use of headphones Do not connect headphones to the R amp S UPV during mobile phone tests High level signals may be present at the headphone connector The UPV audio analyzer must be equipped as follows R amp S UPV firmware version 3 3 4 822 or higher
144. noise ensures that the energy is distributed evenly of the complete bandwidth Required calibration time is about three hours Fig 18 Configuration of pink noise for speaker equalizations The level of the pink noise can be chosen between 40 and 70 dBspl A For obtaining a similar level as with the noise fields it should be chosen as 60 dBspl A or higher The pink noise duration and averaging time for the measurement can be chosen between 10 s and 120 s Recommended duration is 30 s which equals the averaging time for equalization with real ambient noise condition n increased averaging time increases the accuracy in particular at the low frequency end Alternative to the default pink noise file a user defined pink noise file can be loaded lt must be located in the working directory i e DASGPP and be at least 120 seconds long 3 Equalization using a selected one of the ambient noise conditions and individual level alignment for each ambient noise condition 22 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones This method determines the equalization using one of the available ambient noise conditions as test signal This equalization is then used for all ambient noise conditions Only the level is aligned individually for each ambient noise condition The measurement time is about 3 hours Fig 19 Selection of ambient noise for the speaker equalization As the result of this method depends on the spectral d
145. not available anymore Measurements are generally performed via the air interface with the speech coder and decoder included As mentioned above measurements using sinusoidal tones cannot be performed because the static sinusoidal input signal becomes a more or less stochastic output signal as a result of coding particularly in the medium and high audio frequency ranges Signals similar to voice therefore have to be used for the measurement i e either artificial voice according to ITU T P 50 or a multitone signal according to ITU T P 501 is possible At the same time modulation of the signal in time must largely correspond to voice since many modern mobile phones use algorithms for interference suppression which use the modulation to distinguish the useful from the interfering signal The test routines in the R amp S UPV K91 use an amplitude modulated multitone signal according to ITU T P 501 as described in 3GPP TS 26 132 or alternatively artificial voice according to ITU T P 50 update key UPV K9101 or UPV K9102 required 55 E 7 Acoustic Measurements on Mobile Phones Starting measurements Measurements can be started from the Measurement menu This menu contains either all available measurements or the measurements belonging to the selected standard if the checkbox Allow only selected measurements in the Options gt Select standard window is checked The menu Standards allows to start any measurement wh
146. nterface measured at the analog R amp S CMU200 speech decoder output and the sound pressure level at the artificial ear referenced to the ERP and the receiving loudness rating is calculated according to formula 5 1 of ITU T P 79 The weighting factors are taken from ITU T P 79 table A2 for narrowband and for wideband according to release 8 and from ITU T P 79 table G1 for wideband according to release 6 and Le Due to the output gain tolerance of the R amp S CMU200 speech decoder the individual sensitivity of the R amp S CMU200 used has to be taken into account in order to calculate the receiving loudness rating see section Calibration above The receiving loudness rating depends on the volume setting on the mobile phone under test and according to 3GPP TS 26 131 should be between 1 dB and 5 dB for narrowband and for wideband according to release 8 and later and between 2 dB and 8 dB for wideband according to release 6 and 7 obtained at a rated nominal loudness setting with lower dB values corresponding to a higher loudness The RLR must not fall below 13 dB 10 dB for wideband in release 6 and 7 when maximum loudness is set on the mobile phone To prevent damage to the human ear the maximum receiving loudness must not exceed a certain value The measured RLR is indicated in a window in the frequency response display and checked for compliance with these limits In addition to the numeric value either PASS or F
147. o small Delay Measurement al x Speaker Front Right delay cannot be measured seems to be too short 3 ms Check distance to Right microphone 1 029 ro and sound level of Speaker Frant Right i Retry Ignore Fig 64 Message for unexpectedly short delay If the distance is less than the intended minimum distance the speaker is too close to the HATS This warning can be ignored if the measured distance matches the actual position of the speaker 49 E 1402 0043 12 Acoustic Measurements on Mobile Phones The measurement can be repeated after the cabling and the amplifier level have been corrected The cabling must be changed during and after the delay measurement the user is instructed to do this in dialog boxes A Ensure Right Ear is connected to UPY analyzer chi J Left Ear is connected to UPY analyzer che and UPF TRG Out is connected to UPY TRG IM Fig 65 Instructions for change of cabling during the calibration process After completion of the delay measurement it is thus ensured that the HATS ears are correctly cabled and the output level is high enough A list showing all of the determined distances is displayed before the actual equalization begins Delay compensation These distances between HATS and speakers have been measured J 2 460 m From HATS to Speaker Front Left 2 187 m from HATS to Speaker Rear Left 2 544 m From HATS to Speaker Front Right 2 265 m From HATS to Speaker Rea
148. o not show this dialog again is checked the corresponding selection window will not appear at the program start in future However the selection is still available in the Options menu see below After the last of the four selection windows has been closed the main window of the R amp S UPV K9 opens UPY K9x Mobile Phone Tests D 3GPP Results xml File Data Calibration Measurement Standards Release Config Meas Sequence Report Options Help Testresults overmew 1402 0043 12 Measurement title Test object Verdi Main Result 2 Select Date and time soseees 02 17 2012 15 39 55 3GPP Echo loss handset nom vol Rel 10 PASS Echo Loss 66 4 dB cnn 02 17 2012 15 40 58 3GPP Echo loss handset all vol steps Rel 1 PASS Echo Loss 66 4 dB sees 02 17 2012 15 42 15 3GPP Idle channel noise receiving max wol PASS Idle Channel Noise Receis cesses 02 17 2012 15 42 58 3GPP Idle channel noise receiving max vol PASS Idle Chan Noise Rec Rig 02 17 2012 15 44 13 3GPP Idle channel noise receiv WB nom vol PASS Idle Channel Noise Rece oe 02 17 2012 15 44 46 3GPP Idle chan noise rec WB nom vol Bin PASS Idle Chan Noise Rec Ric cena 02 17 2012 16 31 29 3GPP DTHF Sending MMS Rel 10 FAIL Sending Loudness Rating a 02 17 2012 16 32 23 3GPP DTHF Sending MMS Rel 10 FAIL Sending Loudness Rating ermano 02 17 2012 16 37 18 3GPP DTHF Receiving MMS Nom Yol Rel FAIL Receiving Loudness Ratir monas 0
149. obile to the network simulator is analyzed The uplink signal contains a section with single words separated by pauses single near end words and a section with continuous talk continuous double talk These sections are analysed separately In a first run both uplink and downlink signals are played simultaneously In a second run only the uplink signal is played while the downlink path is silent The level difference between both situations is anlayzed in frames of 5 ms The results are summarized separately for the following two categories Double talk frames are defined as the frames where both the far end receiving direction signal includes active speech extended with a hang over period of 200 ms and the near end signal is composed of active speech Far end single talk adjacent to double talk frames are similarly defined as the frames with active far end speech and no active near end speech The test method measures the duration of any level difference between the sending signal of a double talk sequence where the echo canceller has been exposed to simultaneous echo and near end speech and the sending signal of the same near end speech only The level difference is classified for each of the two situations with and without simultaneous downlink signal and for each of the two classified frame categories separately into eight categories according to the following figure and table Fig 93 Classification
150. of the communication standards GSM frequency bands can be selected This allows sequences to be run in different GSM bands without changing the subsystem in every single CMU control instance in the sequence Noise Calibration Configuration In Noise Calibration Configuration parameters for the background noise field used for the Speech Quality in Presence of Ambient Noise test can be set Noise Calibration Configuration Al E Number of fullrange speakers pairs 2 Modify speaker delay IV Number of subwoofers li Additional delay FL ooo ms Subwoofer connected to UPP Channel 7 Additional delay AL hzo fre Maximum output level 13 78 apy Additional delay FR 11 00 ms Ear equalization ID Additional delay RR 2300 m Bandlirnit low 40 00 2i Uz Max iterations during equalization 3 Bandlimit high 20000 00 He Use Pink Noise for all equalizations Y Flatness start at 50 00 1 Uz Ambiance used for equalization Work Noise Office Callcenter y Flatness end at 10000 00 H2 Pink Noise level 65 00 despl a Flatness width 6 00 de Pink Noise duration 30 00 A Min distance HATS to speaker hiso 3 A Pink Noise filename PinkNoise16Bitl 20sFiltered waw m Max distance HATS to speaker 250 a n Final test of all ambiances E Max level deviation foso dB Accept single level deviation E Max THD 20 00 gt 4B Action on final flatness deviation Prompt y Use All speaker Equalization v Set to default Cancel a de Fig 16
151. ommunication Tester R amp S CMU200 called herein below R amp S CMU200 This tester simulates a base station for the mobile phone so that a call can be set up For GSM the R amp S CMU200 must be equipped with the options R amp S CMU B21 signalling unit R amp S CMU B52 speech coder decoder and the appropriate software options for the GSM band used For WCDMA UMTS the option R amp S CMU B69 is required Wideband AMR tests require option R amp S CMU K46 for both GSM and or WCDMA UMTS Note The firmware version in the R amp S CMU200 must be 5 04 or higher Acoustic devices such as an artificial mouth artificial ear and other accessories are required for the measurements The following equipment from Bruel amp Kjeer or G R A S is normally used Table 1 Equipment for mobile phone tests Device Description Type examples Telephone test head Device for fixing the DUT in the B amp K 4602B up to Release 8 prescribed position Wideband ear simulator IEC 711 type occluded ear simulator B amp K 4195 type 3 2 up to Release 8 with adapters for connection to the ear piece of the DUT Artificial mouth Special loudspeaker for simulation B amp K 4227 or up to Release 8 of the mouth G R A S 44AB or 44AA with power amplifier Head and torso simulator Head and torso simulator with B amp K 4128D artificial ear type 3 3 and artificial mouth may be used alternatively to the abovementioned devices Second left artificial ear Required fo
152. omprobarse que stos cumplan los est ndares IEC60950 1 EN60950 1 o IEC61010 1 EN 61010 1 v lidos en cada caso A menos que est permitido expresamente no retire nunca la tapa ni componentes de la carcasa mientras el producto est en servicio Esto pone a descubierto los cables y componentes el ctricos y puede causar lesiones fuego o da os en el producto Si un producto se instala en un lugar fijo se deber primero conectar el conductor de protecci n fijo con el conductor de protecci n del producto antes de hacer cualquier otra conexi n La instalaci n y la conexi n deber n ser efectuadas por un electricista especializado En el caso de dispositivos fijos que no est n provistos de fusibles interruptor autom tico ni otros mecanismos de seguridad similares el circuito de alimentaci n debe estar protegido de modo que todas las personas que puedan acceder al producto as como el producto mismo est n a salvo de posibles da os Todo producto debe estar protegido contra sobretensi n debida p ej a una ca da del rayo mediante los correspondientes sistemas de protecci n Si no el personal que lo utilice quedar expuesto al peligro de choque el ctrico No debe introducirse en los orificios de la caja del aparato ning n objeto que no est destinado a ello Esto puede producir cortocircuitos en el producto y o puede causar choques el ctricos fuego o lesiones Salvo indicaci n contraria los productos no est n impermea
153. on of CMW Speech Codec The CMW500 does not provide the Decoder Cal and Encoder Cal functionalities Instead the maximum peak input and output voltage can be set in the user interface Speech Analysis Routing AF 1 A Signaling No Connection Control Input Level Full Scale Peak 0 100 Output Level Full Scale Peak 0 300 Y Fig 46 Setting of the full scale peak input and output values in the CMW user interface Calibration Codec CMW opens windows where these values can be entered in unit mV in the mobile phone test program 1402 0043 12 41 E 7 Acoustic Measurements on Mobile Phones Calibration of Ambient Noise Field 36 Ambient Noise Adjustment Of x No Standard Diffuse field microphone CMU CRTU Adjust Stop Start Enter Adjust Level Adiustien Measurement Comment Change Scala Fig 47 Measurement window for ambient noise field calibration Please refer to application note 1GA51 available on the R amp S download web site for suggestions how to generate the noise field for the ambient noise rejection test For the calibration of the noise field for ambient noise rejection tests all obstacles test head or HATS Telephone etc have to be removed from the test chamber For the generation of the noise field additional equipment is necessary The noise field should have sufficient homogeneity sound pressure level independent of place and diffuseness r
154. onfiguration of handheld hands free UE with HATS For desk top hands free it is referred to ITU T P 340 http www itu int for the use of free field microphone and discrete P 51 mouth The hands free terminal should be placed on a table of approximately 1 m with the centre of its front edge 400 mm perpendicularly from the centre of the front edge of the table The surface area should not be less than 0 96 m and its width should not be less than 0 8 m The front centre of the measuring microphone or centre of the lip ring respectively should be placed 300 mm above the centre of the front edge of the table with the axis of the microphone or artificial mouth inclined towards the centre of the front edge of the hands free terminal For the use of a HATS with both types of hands free terminals it is referred to ITU T P 581 For handheld hands free the setup of ITU T P 581 corresponding to portable hands free should be used For desk top hands free the centre of the lip ring is positioned as described above but the axis of the artificial mouth should be horizontal Acoustic Calibration for Hands Free Tests The calibration for the free field microphone or type 3 3 or type 3 4 HATS ear respectively is done as described in chapter 4 above For binaural measurements the second artificial ear has to be calibrated accordingly using the sub item Second Type 3 3 ear or Second type 3 4 ear respectively in Calibration gt
155. or the purpose of making adapted copies it is possible to unlock a standard test definition uncheck the Locked checkbox In this case the ok button is disabled to avoid unintentional changes in standard tests All newly created test definitions appear in the last sub menu of the Standards menu More Editing Parameters Parameters can be edited by entering their number in the number field below the data grid and clicking Edit Number J Type Double A Default Value DE T Locked mea HY HA Fig 119 Entry window for parameters Note that the type conformity of the entered value is checked but not the value itself against any range limits Editing Limit Curves Clicking Add or Edit below the data grid for the limit curves opens the window for selecting limit files It is important to know that limit files have to start with the label UPV LIMIT FILE in the first line They have to be ANSI coded and the X and Y values have to be separated by a TAB character in each line Note that currently Desired limit curves are not supported in all test routines Most of the measurement allow to specify either lower limits or 97 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones upper limits or both An exception is formed by the sending response and receiving response measurements As the limit template is centered around the measured c
156. ormally the echo is caused by internal acoustic coupling between the telephone receiver and the microphone Since the echo considerably reduces the sound transmission quality it must not exceed a certain level For measurement of echo loss up to release 9 of 3GPP TS 26 132 the testing shall be made under real use environmental conditions A typical office type room should be used The mobile phone under test is suspended in free air From release 10 echo loss is measured with the handset or headset mounted on the HATS as for most other measurements A modulated multitone signal according to ITU T P 501 is generated as a test signal and applied to the speech coder First the spectral energy distribution of the generated signal is measured in the third octave bands from 200 Hz to 4 kHz Then the spectral distribution in the output signal of the speech decoder is measured The echo loss is calculated from the differences of the bands according to ITU T G 122 According to 3GPP TS26 132 the mobile phone under test has to be fed for approx 10s with the male and female version of artificial voice according to ITU T P 50 prior to this measurement This training sequence is to facilitate optimization for potential echo cancellers A quicker test without training sequence is available as 3GPP Echo loss without training The actual gain of the speech coder and decoder must also be considered in the result These values are obtained during
157. oviding a sound pressure level of 114 dB 10 Pa the checkbox Calibration level increased by 20 dB must be checked In all other cases the checkbox must remain unchecked If a calibrator with a frequency other than 1000 Hz is used make sure that the Selective item in the Calibration menu is unchecked The output voltage of the microphone is measured and the sensitivity displayed with reference to 1 Pa If a mere power supply without gain is used the displayed sensitivity must approximately match the value in the calibration certificate of the microphone cartridge typical value for microphone capsule 4134 of artificial ear 4185 is approx 12 mV Pa If a conditioning amplifier with 20 dB gain recommended value is used the displayed sensitivity must be about 10 times higher e g 120 mV Pa If the voltage measured is below 3 mV an error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the test be repeated After switching on the microphone power supply wait approx 20s before starting the calibration again 33 E 1402 0043 12 Acoustic Measurements on Mobile Phones Calibration of Artificial Ear Prior to the measurements the absolute sensitivity of the microphone in the artificial ear must be determined using a sound level calibrator such as the Bruel amp Kj r 4231 with a sound pressure level of 94 dB
158. ow Type 3 2 Low Leak rt Ea CMU Z CBT Sample Object Save Curve as Enter E Save curve as Load Curve Era M EN AN Delete Curve Create Report Fig 99 Typical result of receiving distortion measurement For tests in WB AMR mode starting from release 8 of 3GPP TS 26 131 and TS 26 132 additional measurements are performed at the frequencies of 315 Hz 408 Hz 510 Hz and 816 Hz with a digital level of 16 dBm0 at the network interface encoder input An activation signal precedes the test signal To avoid an impact of the activation signal on the result due to the processing delay in the transmission chain the test routine comprises a delay measurement The start of the analysis is delayed against the start of the test signal by the measured delay time gt 3GPP Distortion Receiving Wide Rel 8 Jof x om o om o w o Receiving signal to distortion ratio dB ft o Receiving signal to distortion ratio dB Pass 0 50 40 30 20 10 OD 5 200 1000 2000 Receiving signal level dB m0 Frequency Hz E Measured A Lower Limit N Measured A Lower Limit HATS Type 3 3 Art Ear CMU H CET Sample Test Object Save Curve as Enter cose Save Curve as Load Curve Lima Fla M a Comment Delete Curve Create Report Close Fig 100 Typical result of receiving distortion measurement in wideband according to release 8 1402 0043 12 80 E Acoustic Measurements on Mobile Phones From re
159. ow where a name for the new sequence has to be entered Subsequently the sequence window opens UPY K9x Mobile Phone Tests D 3GPP Results xml File Data Calibration Measurement Standards Config Meas Sequence Handset_Wide_Rel8 3GPP HandS Narrow 3GPP Hands Wide Rel 6 7 3GPP HandS Wide Rel 8 3GPP Sending Handset Wide Rel 8 3GPP Receiving Handset nom ol Wide Rel 8 3GPP Receiving Handset max Vol Wide Rel 8 3GPP Receiving Handset min Yol Wideband 3GPP Idle Channel Noise Sending Wideband 3GPP Idle Channel Noise Rec nom Yol Rel 8 3GPP Idle Channel Noise Rec max Yol Rel 8 3GPP Distortion Sending Wide Rel 8 3GPP Distortion Receiving Wide Rel 8 3GPP STMR HATS Nom Yol Wideband 3GPP STMR HATS All Vol Steps Wideband 3GPP Sidetone Delay 1 F Sequence Report Options Help Eqitend Append gt Copy Edit end App Delete x Moye Up Edit Parameters on Highighted 3GPP Sending Handset Wide Rel 8 3GPP Receiving Handset nom Vol Wide Rel 8 3GPP Idle Channel Noise Sending Wideband 3GPP Idle Channel Noise Rec nom Yol Rel 8 3GPP Distortion Sending Wide Rel 8 3GPP Distortion Receiving Wide Rel 8 3GPP STMR HATS Nom Yol Wideband 3GPP Sidetone Delay User volume to max 3GPP Receiving Handset max Vol Wide Rel 8 3GPP Idle Chan
160. pdate key UPV K9103 required for P 501 signal The P 50 test signal simulates the spectrum and time structure of human voice without having any semantic content or language specific characteristics It consists of 10 seconds female voice and 10 seconds male voice The P 501 single talk test signal contains six sentences recorded with male voices and six sentences recorded with female voices Other than with the modulated multisine the reference spectra at the respective inputs of the transmission path are measured in advance and stored in files Therefore the speech spectrum calibration for sending direction is a prerequisite for this test see chapter 3 Calibration To make sure that the spectral transform is performed on the same portion of the test signal during reference spectrum measurement and output spectrum measurement the output spectrum measurement is preceded by a delay measurement employing a sine burst The start of the measurement is then delayed against the playback of the test signal by the measured amount of delay in the transmission path If the transmission path is interrupted e g due to a dropped call the test stops with a suitable warning message 1402 0043 12 68 E Acoustic Measurements on Mobile Phones Sidetone Delay The sidetone delay measurement is specified from release 8 of the 3GPP specifications for wideband AMR Digital signal processing in the sidetone path can cause a delay of t
161. protective conductor 3 Intentionally breaking the protective conductor either in the feed line or in the product itself is not permitted Doing so can result in the danger of an electric shock from the product If extension cords or connector strips are implemented they must be checked on a regular basis to ensure that they are safe to use 4 If there is no power switch for disconnecting the product from the AC supply network or if the power switch is not suitable for this purpose use the plug of the connecting cable to disconnect the product from the AC supply network In such cases always ensure that the power plug is easily reachable and accessible at all times For example if the power plug is the disconnecting device the length of the connecting cable must not exceed 3 m Functional or electronic switches are not suitable for providing disconnection from the AC supply network If products without power switches are integrated into racks or systems the disconnecting device must be provided at the system level 5 Never use the product if the power cable is damaged Check the power cables on a regular basis to ensure that they are in proper operating condition By taking appropriate safety measures and carefully laying the power cable ensure that the cable cannot be damaged and that no one can be hurt by for example tripping over the cable or suffering an electric shock 1171 0000 42 07 Page 3 10 11 12 13 14 15
162. r Load Curve Limit Fla Mansisanmes Comment Delete Curve Create Report Close Fig 113 Sidetone distortion test 1402 0043 12 92 E 7 Acoustic Measurements on Mobile Phones Gain Variation Tests Gain variation tests in sending and receiving direction are specified in 3GPP TS 43 050 Annex C 5 The limits given in TS 43 050 sections 3 9 1 and 3 9 2 are meant for measurement over DAI and cannot be fulfilled when a Codec is in the transmission chain The configurable versions of the gain variation tests allow to define specific limit curves Sending Gain Yariation 3GPP olx Sending gain variation dB Sending signal level dB relative to ARL 3GPP HandS Narrow Type 3 2 Low Leak Art Ea CMU CBT Sample Object Save Curve as Add Enter Load Curve mi Cas Measiremeni Comment Delete Curve Create Report Close Fig 114 Sending gain variation test Delay Measurements Sending and receiving delay can only be measured end to end i e from the acoustic origin of the artificial mouth to the decoder output of the system simulator or from the encoder input of the system simulator to the DRP The measurements offered with R amp S UPV K91 allow to subtract the estimated delay of the R amp S CMU200 from the total measured value As the data is interleaved on the air interface no exact time instance can be determined when the audio data are transmitted between mobile phone and system simulator The values
163. r Right 2 200 m From HATS to Subwoofer cei Fig 66 List of determined distances The minimum and maximum distance between the HATS ear and the speaker can be entered in the configuration dialog box Preparatory Measurements for Equalization Equalization can only be performed successfully if the room acoustics meet certain requirements Noise Floor The permissible noise floor is max 30 dB A spl If it is above this value equalization may be incorrect in the case of weak noise fields Noise foor measurement Moise Floor too high 32 5 dEsplc4 should be below 30 dEspl A Improve noise absorption or continue with current noise Floor by selecting IGNORE Retry Ignore Fig 67 Warning for exceeded noise floor limit After the soundproofing has been improved the measurement can be repeated Ignore continues the calibration process although this limit has been exceeded Frequency Response The permissible frequency response of a speaker before equalization is max 9 dB If it is above this value equalization is not possible for the room and the room properties and the speaker layout should be improved before equalization is performed 50 E 1402 0043 12 Acoustic Measurements on Mobile Phones al a Pink equalization of Speaker Front Left out of tolerance 9 95 dB Should be below 9 dB Improve the set up arrangement use higher quality loudspeakers or continue with current set up by sele
164. r cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling Transport 1 The product may be very heavy Therefore the product must be handled with care In some cases the user may require a suitable means of lifting or moving the product e g with a lift truck to avoid back or other physical injuries Handles on the products are designed exclusively to enable personnel to transport the product It is therefore not permissible to use handles to fasten the product to or on transport equipment such as cranes fork lifts wagons etc The user is responsible for securely fastening the products to or on the means of transport or lifting Observe the safety regulations of the manufacturer of the means of transport or lifting Noncompliance can result in personal injury or material damage If you use the product in a vehicle it is the sole responsibility of the driver to drive the vehicle safely and properly The manufacturer assumes no responsibility for accidents or collisions Never use the product in a moving vehicle if doing so could distract the driver of the vehicle Adequately secure the product in the vehicle to prevent injuries or other damage in the event of an accident 1171 0000 42 07 Page 6 Instrucciones de seguridad elementales Waste disposal Environmental protection 1 Specially marked equipment has a battery or accumulator that must not be disposed of with unsorted municipal was
165. r handsfree tests and B amp K 4159C for head and torso adjustment of the background noise simulator field for speech quality in presence of ambient noise Handset fixture for Head Required to position the handset on B amp K 4606 and Torso simulator the artificial head and to apply a defined force with the earpiece against the pinna Measurement microphone 2 or measurement microphone B amp K 4191 free for measurement of artificial mouth field may be used Acoustic calibrator Microphone power supply output during calibration This microphone can use the preamplifier of the artificial ear type 3 2 if existing Use a Y measurement microphone for calibration of the HATS mouth Sound level calibrator for calibrating the measuring microphone Power supply and preamplifier for the measuring microphone for hands free tests B amp K 4192 pressure field may be used with type 1 art ear B amp K 4231 B amp K 2829 5935L or 2690A0S2 or G R A S 12AD or 12AA E 1402 0043 12 Acoustic Measurements on Mobile Phones Note With the amplifier set to O dB the microphone power supply B amp K 2690A0S2 produces too much noise for measuring idle noise and distortion It is therefore advisable to set a gain of 20 dB From Release 9 of TS 26132 the use of the HATS is mandatory for handset and headset measurements From Release 10 only artificial ear type 3 3 anatomically shaped soft pinna may be use
166. rements on Mobile Phones The following equipment not supplied by Rohde amp Schwarz is also required Device Description Type examples 2 Pairs of full range Frequency response at least Behringer Truth speakers 100 Hz to 10 kHz B2031A Subwoofer Frequency response at least M Audio SBX 10 40 Hz to 120 Hz 5 Speaker cables XLR male XLR female length approx 10m 4 Speaker stands The base plane of the speaker should be adjustable such that the tweeter of the speaker is at the same height as the artificial ears of the head and torso simulator With the B2031A speakers the tweeter is about 31 cm above the base With the Bruel amp Kjaer HATS the entrance of the artificial ear is about 60 cm above the base Installing the Software The application program requires license keys R amp S UPV K9 and R amp S UPV K91 to be installed The application program and the license keys are installed together with license key R amp S UPV K9103 in the factory in case a new R amp S UPV is ordered together with these options If the options are ordered separately the license keys as well as the installation instructions are part of the delivery The program required and the associated files are in the folder UPV K9x Software on the installation CD supplied with the R amp S UPV K91 option It is recommended to copy the files MCRInstaller exe CRRuntime_12 3 mlb exe RsVisaTarget msi UPV K9x_30356 msi Config ini dotnetfx35 exe and Sett
167. response of the artificial mouth is measured and displayed Next the frequency response is measured with the inverse frequency response correction automatically selected in the generator equalization Residual errors caused by nonlinearities of the speaker in the mouth are measured and taken into account in the final equalization file as fine correction To verify the results the absolute sound pressure versus frequency is measured at a sound pressure of 4 7 dBPa reference value for most of the measurements The absolute sound pressure at each frequency must be within a tolerance band of 0 2 dB Correct calibration without interfering sound yields an almost straight line in the middle between the two limit lines lf mouth calibration with reference spectrum measurement is chosen the test signal is subsequently filtered with the inverse mouth frequency response and the resulting spectrum at the MRP is recorded as reference for sending frequency response tests lf a mouth calibration is performed without reference spectrum measurement previously recorded reference spectra are invalidated A sensing measurement using artificial voice according to ITU T P 50 can only performed after an additional reference spectrum calibration see below P 50 Speech Spectrum Calibration For tests using artificial voice according to ITU T P 50 as test signal the spectrum of the test signal has to be measured and stored as reference spectrum for the tr
168. s 82 Idle Channel Noise Receiving coccccccnccccnconcncncnccncnconcncnncnconcnonanonos 83 Ambient Noise Rejection ooocooococonoconoconoconoconoconoconoconocanonanenon 85 Speech Quality in Presence of Ambient Noise cccceeceeeeeees 86 A oabeniariaaeaoe Nunta 86 COMMS HON o N EA AE E E ENE 87 Prereg isileS o a ee e Sen 87 Measurement ricota Dt a n dle e ula die ds 87 ANR Tests using Artificial Voice according to ITU T P 50 as A A a daphereatell Aa A 88 Notes on Hands Free Measurements 0cccccceeeeeeeeceeeeeeeeaeeeaees 89 General REMAKE idos 89 Tes CSC ts 89 Acoustic Calibration for Hands Free Tests ocooocccocccncccccncnccncnnnno 91 Utilites Measurements ooccoccccccccocncocncocncocnnonononononnnnononononanonanenanes 92 SIidetone DISTOMION rca 92 Gain Variation TestS oocccoccconccoccconncocnnonnnonnnonnnnononononanonanonanenanos 93 Delay Measurements ccoocconcconcnoccnoccnononoconononononononenononanenanenaninono 93 Background Noise MeasureMentS coocccccccccccccociconcocncononcncancononanonos 94 6 Customizing MeasureMentS oocconcconcccnncconcconoconiconoconnnnnnonnnnnnnnannnanonoss 96 EIN arameo ll 97 Editing EMIT OUNVE S moa as 97 Measurements with electric connections ccoocccocccncnnoconoconoconononononos 99 HLFOCUCTION senesini e Te EEA 99 Calibration values for electric CONNECTIONS ccococccoccnccnnnncnnnnnonos 99 Electric connection r
169. sed as currently selected 37 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Reading the DRP ERP Correction Data of the Artificial Ear of Type 3 4 Call the routine Calibration gt DRP to ERP Correction gt Type 3 4 gt From ITU T P 57 Table 2b This procedure needs only be repeated when the 3GPP directory has been renamed or removed Alternatively it is also possible to load individual DRP ERP correction data from a calibration disk This option is not conformant with the standards Reading the Diffuse Field Equalization Data of the Artificial Ear of Type 3 4 From Release 10 of 3GPP TS 26 132 diffuse field equalization is applied to receiving frequency response results with handset and headset UEs Call the routine Calibration gt Diffuse field equalization gt Type 3 4 gt From ITU T P 58 Table 3 This procedure needs only be repeated when the 3GPP directory has been renamed or removed Alternatively it is also possible to load individual diffuse field equalization data from a calibration disk This option is not conformant with the standards Calibration of Artificial Mouth for Handset Tests Before a mobile phone can be tested the absolute sensitivity and frequency response of the artificial mouth have to be measured and corrected with the aid of a previously calibrated free field or diffuse field pressure field microphone The measuring microphone removed from artificial ear t
170. sed by selecting the appropriate entry in the configuration dialog box Action on final flatness deviation Promot Use All speaker Equalization Prompt o Retry twice Fig 73 Selection of action on failed verification of all speaker equalizations in the noise calibration configuration window Instead of Prompt the user can determine whether one or two retries are to be performed automatically and then FAIL is to be set as the result if the last retry was also unsuccessful The result of each intermediate step is displayed as a trace during equalization 52 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones 1000 Frequency Hz Fig 74 Display of intermediate equalization results All Speaker Equalization Following an unsuccessful all soeaker equalization check it is possible to adjust the all speaker equalization to within the 3 dB tolerance band by subsequent correction of individual speakers Since this algorithm is extremely time consuming and not always successful it can be deactivated in the configuration dialog box Use All speaker Equalization m Fig 75 Checkbox in the noise calibration configuration window for deactivating the additional all speaker equalization step If All Speaker Equalization is activated further equalization steps are performed e Measurement of the crosstalk flatness separately for left and right If at least one of these is outside the tolerance the crosstal
171. ses l quidos etc que pueden generar da os a la salud Por eso en caso de incendio deben usarse medidas adecuadas como p ej m scaras antig s e indumentaria de protecci n Los productos con l ser est n provistos de indicaciones de advertencia normalizadas en funci n de la clase de l ser del que se trate Los rayos l ser pueden provocar da os de tipo biol gico a causa de las propiedades de su radiaci n y debido a su concentraci n extrema de potencia electromagn tica En caso de que un producto Rohde amp Schwarz contenga un producto l ser p ej un lector de CD DVD no debe usarse ninguna otra configuraci n o funci n aparte de las descritas en la documentaci n del producto a fin de evitar lesiones p ej debidas a irradiaci n l ser Clases de compatibilidad electromagn tica conforme a EN 55011 CISPR 11 y en analog a con EN 55022 CISPR 22 EN 55032 CISPR 32 Aparato de clase A Aparato adecuado para su uso en todos los entornos excepto en los residenciales y en aquellos conectados directamente a una red de distribuci n de baja tensi n que suministra corriente a edificios residenciales Nota Los aparatos de clase A est n destinados al uso en entornos industriales Estos aparatos pueden causar perturbaciones radioel ctricas en entornos residenciales debido a posibles perturbaciones guiadas o radiadas En este caso se le podr solicitar al operador que tome las medidas adecuadas para eliminar estas perturb
172. signal output at the earpiece of the mobile This is provided for information e g for troubleshooting purpose 3GPP Distortion Receiving Wide Rel 9 Spectrum at Art Ear dBPa 1000 Frequency Hz Z 0 d8m0 BY 45 demo HATS Type 3 3 Art Ear CMU CBT WB Test Mobile 3 Save Curve as Load Curve say si M coer Hide Spectrum Delete Curve Create Report cose Close Fig 101 Spectrum display of the receiving distortion test During the test the latest spectrum is displayed After the test has finished button Show Spectrum or Hide Spectrum respectively toggles between spectrum display and result display In this state the spectra to be displayed can be configured in the context menu of the graph and the spectra can be exported to ASCII files The spectrum display is only available for distortion tests according to release 9 and later 1402 0043 12 81 E 7 Acoustic Measurements on Mobile Phones Idle Channel Noise Sending The noise voltage at the speech decoder output is measured with the phone set up in a quiet environment lt 30 dB A The mobile phone under test is installed in the LRGP ITU T P 76 or on the HATS The decoder output voltage is measured weighted and recalculated for the internal level in dBmOp For the narrow band test the weighting is done psophometrically according to ITU T G 223 For the wideband version of the test A weighting according to IEC 60651 is app
173. speaker or car kit has to be entered Electric connection replacing decoder R amp S UPV analyzer input 2 is directly connected to a microphone or to the speech output of a hands free kit A nominal full scale input voltage input voltage corresponding to digital full scale of the respective microphone or speech input has to be entered 99 E 1402 0043 12 Acoustic Measurements on Mobile Phones Performing the measurements After applying the settings in the Options menu and after entering appropriate calibration values for the electric connections in use the measurements may be started as usual Some parts of the standard require the use of particular artificial ears for particular measurements Therefore the checkbox Allow only selected measurements should be unchecked in Options gt Standard For sending tests the output voltage range in the R amp S UPV is set to a large value in order to be able to drive the speaker of the artificial mouth In rare cases sending distortion and or sending noise results may be degraded with electric connections if a low microphone sensitivity is entered In this case please contact R amp S support 100 E 7 Acoustic Measurements on Mobile Phones 8 Automatic Test Sequences 1402 0043 12 5 Sequence Report Opl Ple Open est obje Fig 121 Sequence menu Creating and Editing a Sequence The menu item Sequence gt New first produces a wind
174. st starts If Immediately select this activation signal is checked the signal is selected for use when the Ok button is clicked Show operator instructions If Show operator instructions is checked instructions to the operator are displayed in a window before the measurement starts The operator may be prompted to position the mobile in a defined way or to set the volume to a certain setting CMU remote control If it is intended to remote control a R amp S CMU200 from a sequence of this program menu item CMU remote control can be used to select the communication interface GPIB or RS 232 and if multiple devices are found to select one of them 20 E 1402 0043 12 Acoustic Measurements on Mobile Phones CMU CMU Remote Control via GPIB via AS 232 GPIB Device GPIBO 19 Rohde amp Schwarz CMU 200 1700 0008 02 17 06662 5 13 RS 232 COM Interface COME Rohdetochmarz CMU 200 1100 0006 0 4 106662 45 1 5 Cancel y ee os Fig 15 Window for import setting the CMU remote control For remote control via RS 232 an external USB to serial converter has to be connected and installed For remote control via GPIB the R amp S VISA has to be installed The installer for the R amp S VISA is distributed with the Option R amp S UPV K91 For details of the remote control see section 8 and the operation manuals of the R amp S CMU200 CMU subsystem In CMU subsystem one
175. t 1 LAN socket of UPV to LAN socket of UPP 2 UPP trigger output to UPV trigger input 44 E 1402 0043 12 Acoustic Measurements on Mobile Phones UPP Z8A output 3 to input of front left active speaker UPP Z8A output 4 to input of rear left active speaker UPP Z8A output 5 to input of front right active speaker UPP Z8A output 6 to input of rear right active speaker pe QA 21 ee pa UPP Z8A configured subwoofer output by default 7 to input of active subwoofer 8 Right artificial ear to UPV analyzer input 1 via microphone power supply 9 Left artificial ear to UPV analyzer input 2 via microphone power supply For the delay measurements a connection has to be made from UPP Z8A output 10 to UPV input 1 and both artificial ears have to be connected subsequently to UPV analyzer input 2 Establishing the remote control connection between UPV and UPP After power up of both instruments and the interconnection with a LAN switch cable first an IP connection has to be established between UPV and UPP 1 Start the UPV K9x program and open window Options UPP remote control 2 Once the LAN LED on the UPP is on press button CASCADE LAN RESET once and wait until the CASCADE LED is blinking 3 Press the CASCADE LAN RESET button again 4 Click the Find button in the UPP remote control window on the UPV 5 Now the computer name on the UPP appears in the UPP remote control window Sel
176. te but must be collected separately It may only be disposed of at a suitable collection point or via a Rohde amp Schwarz customer service center 2 Waste electrical and electronic equipment must not be disposed of with unsorted municipal waste but must be collected separately Rohde amp Schwarz GmbH 8 Co KG has developed a disposal concept and takes full responsibility for take back obligations and disposal obligations for manufacturers within the EU Contact your Rohde amp Schwarz customer service center for environmentally responsible disposal of the product 3 If products or their components are mechanically and or thermally processed in a manner that goes beyond their intended use hazardous substances heavy metal dust such as lead beryllium nickel may be released For this reason the product may only be disassembled by specially trained personnel Improper disassembly may be hazardous to your health National waste disposal regulations must be observed 4 lf handling the product releases hazardous substances or fuels that must be disposed of in a special way e g coolants or engine oils that must be replenished regularly the safety instructions of the manufacturer of the hazardous substances or fuels and the applicable regional waste disposal regulations must be observed Also observe the relevant safety instructions in the product documentation The improper disposal of hazardous substances or fuels can cause health problems an
177. tected by appropriate measures Persons with pacemakers may also be exposed to risks from electromagnetic radiation The employer operator must evaluate workplaces where there is a special risk of exposure to radiation and if necessary take measures to avert the potential danger 6 Should a fire occur the product may release hazardous substances gases fluids etc that can cause health problems Therefore suitable measures must be taken e g protective masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of their radiation and due to their extremely concentrated electromagnetic power If a laser product e g a CD DVD drive is integrated into a Rohde amp Schwarz product absolutely no other settings or functions may be used as described in the product documentation The objective is to prevent personal injury e g due to laser beams 8 EMC classes in line with EN 55011 CISPR 11 and analogously with EN 55022 CISPR 22 EN 55032 CISPR 32 Class A equipment Equipment suitable for use in all environments except residential environments and environments that are directly connected to a low voltage supply network that supplies residential buildings Note Class A equipment is intended for use in an industrial environment This equipment may cause radio disturbances in residential environments du
178. tests are based on standards for 3GPP mobile phones The test methods are stipulated in 3GPP TS 26 132 and the values to be attained in 3GPP TS 26 131 As of release 4 of the GSM 51 010 standard successor to GSM 11 10 even GSM mobile phones may be tested to 3GPP TS 26 132 The R8S UPV K9 and R amp S UPV K91 options UMTS GSM Mobile Phone Tests of the Audio Analyzer R amp S UPV called herein below UPV are now available for measuring the acoustic characteristics of UMTS and GSM mobile phones The measurements are in line with 3GPP TS 26 131 TS 26 132 and TS 51 010 and have been validated by an independent test house for conformance testing on UMTS and GSM mobile phones The current version of the software supports 3GPP TS 26 131 and TS 26 132 up to Release 11 From version 2 3 1 47 of the software a new Release menu is available which allows to determine and start the test cases applicable to a given combination of speech codec bandwidth type of tested device handset headset or handheld desktop or vehicle mounted handsfree and release number of the test specifications Acoustic Measurements on Mobile Phones 2 Preparation and Start of the Application Software 1402 0043 12 Required Measuring Instruments and Accessories The UPV audio analyzer with the options as described below is required for the measurements The mobile phone under test is connected via the RF interface using the Universal Digital Radio C
179. the most advanced meth ods It was developed manufac tured and tested in compliance with our quality management and environmental manage ment systems Rohde amp Schwarz has been certified for exam ple according to the ISO 9001 and ISO 14001 management systems Environmental commitment Energy efficient products Continuous improvement in environmental sustainability 1 150 14001 certified environmental management system Certified Quality System ISO 9001 Certified Environmental System ISO 14001 Cher client Vous avez choisi d acheter un produit Rohde 4 Schwarz Vous disposez donc d un produit fabriqu d apr s les m thodes les plus avanc es Le d velop pement la fabrication et les tests de ce produit ont t effec tu s selon nos syst mes de management de qualit et de management environnemental La soci t Rohde amp Schwarz a t homologu e entre autres conform ment aux syst mes de management ISO 9001 et ISO 14001 Engagement cologique 1 Produits a efficience nerg tique 1 Am lioration continue de la durabilit environnementale Syst me de management environnemental certifi selon ISO 14001 1171 0200 11 V 05 01 1171020011 Customer Support Technical support where and when you need it For quick expert help with any Rohde amp Schwarz equipment contact one of our Customer Support Centers A team of highly qualified engineers provides telephone s
180. therefore exhibit an emphasis on high frequencies with frontal sound incidence For calibration of a P 51 type artificial mouth using a free field microphone the microphone must be mounted in the axis of the sound outlet of the artificial mouth 38 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones For calibration of the HATS P 58 type artificial mouth a Y microphone is clamped in the fixture attached to the HATS gt Call the calibration routine with Calibration gt Artificial mouth gt LRGP ITU T P 51 gt Without Reference Spectrum Calibration gt Artificial mouth gt LRGP ITU T P 51 gt with P 50 Ref Spectrum Calibration gt Artificial mouth gt HATS ITU T P 58 gt Without Reference Spectrum or Calibration gt Artificial mouth gt HATS ITU T P 58 gt with P 50 Ref Spectrum from the main menu The sound pressure generated at the MRP is set to exactly 4 7 dBPa in an automatic measurement routine at 1 kHz The generator voltage required is stored in a file on the hard disk and used as a reference for all subsequent settings with the same artificial mouth If the sound pressure cannot be adjusted to 4 dBPa an error message is displayed with a request to check the connection of the artificial mouth and to repeat the measurement A possible error source would be that the transformer supplied is not connected between the generator and the artificial mouth The uncorrected frequency
181. ting 61 Sending Frequency RESPONSE cccccsececseeeceeeeseeesaeeeseeeeseees 61 Sending Loudness Rating occcoccccoccncccnccocnconcncnacnnnnnnnnononnonnnos 61 Sending Tests using Artificial Voice according to ITU T P 50 S TON les des 63 Receiving Frequency Response and Loudness Rating 64 Receiving Frequency Response cccccceeeceeeseeeeeeeseeseeeeeees 64 Receiving Loudness Rating occconcoocconnnoccnoncnonononanonanononos 65 Receiving Tests using Artificial Voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as Test SE LAE eran ete ete rl E 66 Sidetone Masking Rating STMR ocooccccnccnccccccccnccccnconcncnanononnnnnonos 67 STMR Tests using Artificial Voice according to ITU T P 50 or Single Talk Speech according to ITU T P 501 as Test Signal 68 O a tbh E epee coeatiodseoemhotene 69 4 E 7 Contents A eal E OE aea 70 ECNO LOSS AG LW ios 71 Stability WAN QIN ca 72 SADY MOSS ease ince Med a bec vider seu che tataycdeed Naas bees seat etal 72 Echo Control Characteristics ooccconcccccncconnoconnoconnccnnnnnnncnnnnnnnos 74 Interpretation of the results oocccoccconccocicociconnconicenonos 75 SENGING DISTOMION ti a e 76 Receiving Distortion oocccoccoccnoccniccnoconocononononanonanonanonanonanenaninono 79 Idle Channel Noise SendinQ occcoccccccncoccnconcncnncnoncncnncncnncnonaninnnnono
182. ting see section 8 below Generate temporary export files If Generate temporary export files is checked some of the measurement macros create result exp with result value and verdict and if applicable curve exp or abscurve exp and relcurve exp files with curve data in ASCII format This function is provided for compatibility with R amp S UPL B9 Generate temporary image files Item Generate temporary image files causes the measurement macros to store a screenshot of the measurement window after completion of the test to a file Image TIF for use by a remote controlling host 28 E 1402 0043 12 Acoustic Measurements on Mobile Phones Store results of further measurements If Store results of further measurements is checked curves and calculated values like loudness ratings are also stored for additional measurements started with the Add Measurement key They will appear in reports of the respective measurements Do not change scale for further meas Menu item Do not change scale for further meas deactivates the automatic Y axis scaling if the curve of an additional measurement leaves the plot area partially or totally Store loaded curve data to results If Store loaded curve data to results is checked curves loaded from file with the Load Curve softkey are stored to the results database and will appear in reports of the respective measurements Ena
183. trum Equalization Activating the following tick box enables an algorithm which tries to improve the result of the total equalization into a tolerance scheme of 3 dB Fig 33 Activating refinement of the total spectrum equalization This is attempted by a re equalization of single speakers This algorithm requires at least 1 hour in addition to the preceding adjustment process and is not in all cases successful Alternatively it is recommended to optimize the speaker positioning in the room and re run the adjustment process Minimizing Operator Interaction After the initial plausibility check and delay measurements it is desirable to run the calibration process without operator supervision The settings required for this must be made before starting the calibration process A Fail of the final check of the total equalization may be caused by an unexpected background noise in the test room In this case it is possible to repeat the check to avoid an immediate fail The combo box Action on final flatness deviation allows the operator to select the action to be taken in case of a failing final check of the total equalization Fig 34 Selection of the action performed if the final equalization check fails Prompt leads in case of a fail to a message box where the operator can choose 1 to repeat the final check 2 to cancel the calibration process in order to improve the acoustic properties of the speaker setup in the
184. trum display of the signal sent by the mobile This is provided for information e g for troubleshooting purpose 78 E 7 Acoustic Measurements on Mobile Phones 3GPP Distortion Sending Wide Rel 9 a x Spectrum Sent by Mobile dBm0 100 1000 10000 Frequency Hz 5 dBPa BY odepa BM 4 7 cers BY 10era PY 15 08Pa B 20 era BY 215 H2 BY 4082 BY 5102 BY sisuz HATS Type 3 3 Art Ear CMU 2 CBT WB Test Mobile 3 Save Curve as Load Curve Sava M eae Hite Spectum Delete Curve Create Report cose Close Fig 98 Spectrum display of the sending distortion test During the test the latest spectrum is displayed After the test has finished button Show Spectrum or Hide Spectrum respectively toggles between spectrum display and result display In this state the spectra to be displayed can be configured in the context menu of the graph and the spectra can be exported to ASCII files The spectrum display is only available for distortion tests according to release 9 and later Receiving Distortion The SINAD signal to noise and distortion ratio in the receiving path is measured as a function of the acoustic signal level A pulsed sinusoidal tone is used for the measurement For tests according to up to release 8 narrowband and up to release 7 wideband the frequency of the tone is 1015 Hz For measurements according to later releases the frequency is 1020 Hz see also table 12 b
185. ucture of human voice without having any semantic content or language specific characteristics It consists of 10 seconds female voice and 10 seconds male voice The P 501 single talk test signal contains six sentences recorded with male voices and six sentences recorded with female voices Other than with the modulated multisine the reference spectra at the respective inputs of the transmission path are measured in advance and stored in files Therefore the respective speech spectrum calibration narrowband or wideband for receiving direction is a prerequisite for this test see chapter 3 Calibration To make sure that the spectral transform is performed on the same portion of the test signal during reference spectrum measurement and output spectrum measurement the output spectrum measurement is preceded by a delay measurement employing a sine burst The start of the measurement is then delayed against the playback of the test signal by the measured amount of delay in the transmission path If the transmission path is interrupted e g due to a dropped call the test stops with a suitable warning message 1402 0043 12 66 E 1402 0043 12 Acoustic Measurements on Mobile Phones Sidetone Masking Rating STMR The sidetone path is the deliberate output of a part of the signal picked up by the microphone to the phone s receiver This is to create a natural hearing impression for the person speaking on the phone as is e
186. upport and will work with you to find a solution to your query on any aspect of the operation programming or applications of Rohde amp Schwarz equipment Up to date information and upgrades To keep your instrument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde schwarz com Latin America Phone 1 410 910 7988 customersupport la rohde schwarz com Asia Pacific Phone 6565 13 04 88 customersupport asia rohde schwarz com China Phone 86 800 810 8228 86 400 650 5896 customersupport china rohde schwarz com ROHDE amp SCHWARZ 1171 0200 22 06 00 1 Overview 1402 0043 12 Acoustic Measurements on Mobile Phones The acoustic transmission and reproduction quality of a mobile phone is its most important characteristic in everyday use Even the most visually appealing design and wonderfully sophisticated operating concept are not much use when the user cannot or can hardly understand what is being said at the other end Instruments and methods for measuring acoustic characteristics are therefore essential tools for assessing the quality and suitability of a mobile phone These
187. ura dom stica Las bater as o acumuladores que contienen plomo mercurio o cadmio deben tratarse como residuos especiales Respete en esta relaci n las normas nacionales de eliminaci n y reciclaje Transporte 1 El producto puede tener un peso elevado Por eso es necesario desplazarlo o transportarlo con precauci n y si es necesario usando un sistema de elevaci n adecuado p ej una carretilla elevadora a fin de evitar lesiones en la espalda u otros da os personales 1171 0000 42 07 Page 13 Instrucciones de seguridad elementales Las asas instaladas en los productos sirven solamente de ayuda para el transporte del producto por personas Por eso no est permitido utilizar las asas para la sujeci n en o sobre medios de transporte como p ej gr as carretillas elevadoras de horquilla carros etc Es responsabilidad suya fijar los productos de manera segura a los medios de transporte o elevaci n Para evitar da os personales o da os en el producto siga las instrucciones de seguridad del fabricante del medio de transporte o elevaci n utilizado Si se utiliza el producto dentro de un veh culo recae de manera exclusiva en el conductor la responsabilidad de conducir el veh culo de manera segura y adecuada El fabricante no asumir ninguna responsabilidad por accidentes o colisiones No utilice nunca el producto dentro de un veh culo en movimiento si esto pudiera distraer al conductor Asegure el producto dentro del veh culo
188. urce Speechcodec Low NB AMR Adaptive Multi Rate NB AMR Selection G 660 kbps 8 85 kbps 12 65 kbps 14 25 kbps 1585kbps 18 25 kbps 19 85 kbps 23 05 kbps 1402 0043 12 118 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Mobile phone registered status codec settings possible Ch 1 WCDMA FDD ori Modulation E le WCDMA roD Connection Control E Registered 2112 4 mHz 10562 19224 mHz 9612 Ei MEGA 0 a F Operating Band EH Call active connected status for the measurements Ch 1 WCDMA FDD ai Modulation i lo WCDMA roD Connection Control amp Connected 2112 4 mHz 10562 19224 mHz 9612 Ei MEG O ov 0 7 operating D EH 119 E 7 Acoustic Measurements on Mobile Phones Appendix B Troubleshooting 1402 0043 12 Error message 2908 during installation Please contact customer support Damaged setup file is reported If the program is unable to load the latest setup file it will automatically offer to restore a backup of the damaged file Only if there is no backup available or loading of the backup fails again the following procedure can be applied Copy Settings sup from C Program Files Rohde amp Schwarz UPV K9x Mobile Phone Tests to DA3GPP overwriting the damaged file of the same name Alternatively D 3GPP settings sup may just be deleted Subsequently all settings in the
189. urve with these measurements upper and lower mandatory limits have to be specified pair wise An existing limit file can be selected using the browse button New limit files can be created by copying an existing limit file and editing the copy with a text editor Send to gt Notepad in the context menu of the file in the windows explorer The number of data points on the curve must be specified in the Datacount line Template Curve Number 3 Mandatory upper limit Mandatory lower limit Desired upper limit Desired lower limit Center curve Upper tolerance Lower dE tolerance dE 0 0 1i For information only File name Browse CT Cancel a Fig 120 Entry window for selecting limit curves 98 E Acoustic Measurements on Mobile Phones 7 Measurements with electric connections 1402 0043 12 Introduction Usually the mobile under test is connected via RF connection to the R amp S CMU200 and via acoustic interfaces artificial mouth and ear to the R amp S UPV Therefore no intrusion in the mobile device is required There may however be cases during the design process of a mobile phone where the usual interfaces are not available if a mechanic mockup is to be measured just with the acoustic components but without the rest of the circuitry if a circuit of a mobile phone is to be measured without acoustic components if a hands free kit or headset is to be measured wit
190. used in the present measurements are estimations with an uncertainty of about 10 ms The delay measurement is performed for a given set of frequencies and an average is calculated over all frequencies 1402 0043 12 93 E Acoustic Measurements on Mobile Phones Average Delay 65 3 ms pA Ej p a o o wo 1000 Frequency Hz A Measured Average 65 3 ms 3GPP HandS Narrow Type 3 2 Low Leak ArtEa CMU CBT Sample Object Save Curve as Add Enter Load Curve pera Measrenent Comment Delete Curve Create Report Close Fig 115 Sending delay measurement Background Noise Measurements 3GPP TS 26 132 demands the background noise in the test room to be below 64 dBPa A for idle channel noise measurements and below 30 dBPa A for all other handset measurements For hands free measurements the background noise needs to be below 70 dBPa The background noise measurements offered in R amp S UPV K91 check the overall noise level against these limits and display the spectrum of the noise A lower limit assures that the test is not erroneously passed if no microphone is connected or the microphone supply is switched off The test requires a diffuse field pressure field microphone to be connected to analyzer input 1 and to be placed in the test room preferably at the place of the MRP 60 Ambient noise 63 06dBPa A 70 do co a S A weighted spectrum dB k 110
191. via GPIB cconccccoccccccnccno 109 FED aralONS da aacnahceabncnediaats aee userentaared 109 Starting a MeasureMent ocoocccnocccocccocncccncconocononocnconnnnnnonnnnnnnnnnnnnnnnos 109 Reading ineResUllS vasito 109 Determining the Termination of a Measurement occcccncccccccnccnnc 111 11 Terminating the ApplicatiON ccooccccocncccnccccncconnncncnonanonnancnnnnonanoss 112 1402 0043 12 5 E 7 1402 0043 12 Contents Appendix A Settings on the Radio Communication Tester R amp S CMU200113 o da Saad Sees gate teenie eek eee ak tae 113 Settings for UMTS WCDMA FDD cccecccecccceeceeeeeeaeeeeeeeeeeees 117 Appendix B Troubleshooting soisessa aaia a a a aai 120 Error message 2908 during installation cooococooncooo 120 Damaged setup file is reported oocccoccccoccccccnocccnccncncnncnnoncnnos 120 Damaged results file is reported ccooccccocncconnoconnocaninnononos 120 A test is not starting properlY oocccocncocncccncccncccncnononononanonanonanonanos 120 A calibration value is missing or no device is selected for a required Calibration type ocooocccccccocccococococnconoconncnnnnoncononnnonnnnnnnos 120 The receiving noise test produces an overrange error 66 120 ARL for the sending distortion test cannot be adjusted 121 A measurement using a custom limit curve produces an error 121 Other problems Of UNKNOWN IAS
192. with the frequency response limit template max Vol checks the receiving loudness rating at the highest volume setting against a minimum min Vol checks the receiving loudness rating at the lowest volume setting against a maximum Note As the loudness rating is a loss value a high RLR is associated with a soft speech signal and a low RLR is associated with a loud speech signal Receiving Frequency Response The receiving frequency response is specified as the transmission ratio in dB of the sound pressure in the artificial ear to the rms value at the network interface applied as input voltage at the speech coder input of the R amp S CMU200 The measured sound pressure is either referenced to the ear reference point ERP or from release 10 to DRP with diffuse field correction For ear type 1 the measuring microphone is directly applied to the ERP and no further correction is required For ear types 3 x the measuring microphone is applied to the drum reference point DRP which is the reason why any measured value has to be converted to the ERP by means of calibration factors For special purpose there are separate measurements supplied with R amp S UPV K91 which measure the sound pressure referenced to the DRP The mobile phone under test is installed in the LRGP ITU T P 76 or on the HATS In case of ear type 1 the receiver is sealed to knife edge of the artificial ear In case of ear type 3 2 the receiver is seale
193. y from the centre of the visual display of the mobile station The distance dur Is specified by the manufacturer Normal vector from front of phone Free field measurement microphone E ae re lt Fig 109 Configuration of handheld hands free UE free field microphone for receiving measurements 89 E 7 1402 0043 12 Acoustic Measurements on Mobile Phones Normal vector Lip ring from front of phone position y Fig 110 Configuration of handheld hands free UE and artificial mouth according to ITU T P 51 for sending measurements If a HATS is used the measurement can either be performed binaurally with two artificial ears and correction of the RLR by 6 dB or monaural The selection of acoustic accessories used for the hands free tests can be entered in menu item Options gt Hands free settings Hands Free Settings LAGP ITU T F 51 and free field microphone HATS ITU T P 58 and type 3 3 artificial ear monaural HATS ITU T F 58 and type 3 3 artificial ear binaural HATS ITU T P 58 and type 3 4 artificial ear monaural HATS ITU T P 58 and type 3 4 artificial ear binaural Generic speaker and free field microphone Cancel Fig 111 Hands free settings 90 E 1402 0043 12 Acoustic Measurements on Mobile Phones dyr HATS Reference Normal vector Point from front of phone ie Fig 112 C
194. ype 1 can be used for this purpose or an additional microphone capsule is screwed to the microphone preamplifier The standard microphone is used as a reference for determining the frequency response of the mouth The frequency response of the microphone can be ignored in the test frequency range 100 Hz to 8 KHz see also calibration certificate of microphone capsule Since interfering sound falsifies the corrections the artificial mouth must be calibrated in the anechoic and isolated test chamber In order to reject any noise present in the test chamber it is recommended to activate item Selective in the calibration menu First of all a calibrated measuring microphone has to be selected gt Select a reference microphone type with Calibration gt Artificial mouth gt Select reference mic For the selected microphone type a device must be selected and calibrated see above This device must be connected to R amp S UPV analyzer input 1 via power supply conditioning amplifier For calibration of a P 51 type artificial mouth using a diffuse field type microphone e g B amp K 4131 or 4134 or a microphone from a Type artificial ear fit the microphone at right angles to the mouth at the mouth reference point MRP using the gauge supplied with the mouth positioning at right angles is necessary because diffuse field or pressure calibrated microphones have a flat frequency response to sound from random incident direction and

R&S UPV-K9/-K91 Operating Manual

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R&amp;S UPV-K9/-K91 Operating Manual

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R&S UPV-K9/-K91 Operating Manual