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K240/-K41/-K241 GSM/EDGE

1. Example BB GSM SLOT ULIS STOR EDGE stores the current slot settings into file EDGE Usage Setting only Manual operation See Save User Frame Slot on page 23 Modulation Filter Settings Modulation Settings ESOURCGe hwP T ER e 71 SOURceshw E BB GSMIEDGE FORMa l 2 reir nroa Ea ERNST 72 ESOURceshw rBB IGSMIIFESR DEVIAlQn tuse iti donne tou exei nee cerea a ee era note rne iE 72 SOURce lt hw gt BB GSM AQPSk FORMa csceceececeeceeeeceeecee seca enhn ipande inia 72 SOURce hw EBB GSM H16Qam FORMAat reete red eeu aue o cna aac in dcR iade 73 ESOURce hw EBB GSM H32Qam FORMoal 2 SES curae nara sot ENEE 73 SOURceshw p BB GSMIHOPSICEORMSBID adi eaae trao tt t ppt pua Rae ck aan adea opa 73 SOURce shw BB GSMINTeQam FORMaU EE 74 SOURcexhw BB GSM N32Qam FORMal eiiis iiie eco o ea aad es gna KEEN 74 SOURce hw BB GSM AQPSK ANGLe ch0 sessi 75 SOURce lt hw gt BB GSM AQPSK SCPIR lt ChO gt cccccceeeeee cece cee ee eeeeeaeeeceeseaeeseaesaaeesaeeaes 75 SOURce lt hw gt BB GSM FORMat Format The command selects the modulation type Parameters Format MSK FSK2 RST MSK Example BB GSM FORM FSK2 selects the GSM modulation type FSK Manual operation See Modulation Type GSM on page 25 Modulation Filter Settings SOURce lt hw gt BB GSM EDGE FORMat The command queries the modulation
2. eese 67 TSOUbRcechwslBBGSMERAMe d ULI DEI ete eene 67 SOURce lt hw gt BB GSM FRAMe lt di gt ULIStHLOAD c0 ccceeeeeesteeeeeeneeeaeeeeeeensueeeaeeenneeenenes 67 SOURce lt hw gt BB GSMIFRAMe lt di gt ULISESTORG EENS ENER ann ho rota aua e nene 68 SOURce shw BB GSM FRAMe di PREDefined CATalog eese 68 SOURce shw BB GSM FRAMe di PREDefined LOAD eere 68 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDEMEG CATI OG E 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined LOAD E 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt NI ee WEE 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt UHSE DELETE ue warts geeebig ieee EE 70 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt BE rn Ro vp EE 70 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt IB Nei 71 Save Recall Frame Slots SOURce lt hw gt BB GSM FRAMe lt di gt ULISt CATalog This command reads out the files with user defined frame settings in the default direc tory The default directory is set using command MMEM CDIRectory Only files with the file extension g
3. 95 Slot Marker Definitioh cene cerni sete cescecescceeseusteccecessesseceenetedstens 106 E qoe nino tee 107 110 1 1 Documentation Overview Preface Documentation Overview The user documentation for the R amp S Signal Generator consists of the following parts e Online Help system on the instrument e Quick Start Guide printed manual e Documentation CD ROM with Online help system chm as a standalone help Operating Manuals for base unit and options Service Manual Data sheet and specifications Links to useful sites on the R amp S internet Online Help The Online Help is embedded in the instrument s firmware It offers quick context sen sitive access to the complete information needed for operation and programming The online help contains help on operating the R amp S Signal Generator and all available options Quick Start Guide The Quick Start Guide is delivered with the instrument in printed form and in PDF for mat on the Documentation CD ROM It provides the information needed to set up and start working with the instrument Basic operations and an example of setup are descri bed The manual includes also general information e g Safety Instructions Operating Manuals The Operating Manuals are a supplement to the Quick Start Guide Operating Manuals are provided for the base unit and each additio
4. Data Selects data source The following standard data sources are available e All O All 1 An internally generated sequence containing O data or 1 data e PNxx An internally generated pseudo random noise sequence e Pattern An internally generated sequence according to a bit pattern Use the Pattern box to define the bit pattern e Data List Select DList A binary data from a data list internally or externally generated Select Select DList to access the standard Select List dialog Select the Select Data List gt navigate to the list file dm_iqd gt Select to select an existing data list Use the New and Edit functions to create internally new data list or to edit an existing one Use the standard File Manager function to transfer external data lists to the instrument See also Main Dialog gt Data List Management Remote command SOURce hw BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA on page 99 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA PATTern on page 100 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA DLISt on page 100 3 3 Mode Framed single The Framed single mode generates a modulation signal which is defined by the structure of a single f
5. FCORe con FIXGGIPAT Tei DEE 105 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FlLTer TYPE 98 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt LEVel SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined UNE NEE 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined LOAD 69 SOURce hw BB GSM FRAMe di SLOT stO SUBChannel us USER ch SCPlRatio 97 SOURce hw BB GSM FRAMe di SLOT stO SUBChannel us USER ch SFLag 101 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SFLag USE 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC SELect 104 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC USER 104 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt CATalog 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt DELete 70 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt U
6. FILTer TYPE on page 98 SOURce lt hw gt BB GSM FILTer H32Qam TYPE on page 78 Power Ramping Slot Attenuation This dialog provides access to the settings for power ramping and level attenuation Power Ramping Slot Attenuation You can set the power ramp envelope and define seven possible values for level attenuation Slot Attenuations used in burst editors enables you to define seven possi ble values for level attenuation These values can be selected from the burst editor for the slot currently being edited An eighth value is permanently set to 0 dB and corre sponds to the Slot Level Full setting in the burst editor Power ramping Level attenutaion is used for restricting power ramping to the base band signal 1 To access this dialog select Baseband gt GSM EDGE 2 Select Power Ramp Slot Attenuation This dialog contains the parameters required to configure the power ramp enve lope and the slot attenuations GSM EDGE A PRAMP Slot Atten C fX ower Ramp Control Ramp Function Cosine Ramp Time 29 sym Rise Delay 0 00 sym gt Fall Delay 0 00 sym 3 Select Slot Attenuations lot Attenuations Used In Burst Editors D oofa oofa z m oofa z A5 A6 oofa 00 48 oofa You can define the seven values for level attenuation 4 Select Power Ramping Level Attenuation Power Ramping Level Attenuation In Base
7. Mode Unframed This mode can be used for quick measurements of the spectrum or signal quality e g EVM The subdialogs for selecting the modulation see chapter 3 6 Modulation F ilter on page 23 as well as the trigger marker and clock see chapter 3 8 Trigger Marker Clock Settings on page 32 are offered E GSM EDGE A Set To Default SaveRecall Data List Management Sequence Mode Unframed D Symbol Rate Mode Normal Symbol Rate Simulation Mode EDGE m Modulation Filter 8PSKEDGE Gauss linear Trigger Marker Auto d Clock Signal Configuration Simulation Mode Selects the modulation for the signal for the Unframed Sequence Mode The signal is generated without slot or frame structure The available simulation modes depend on the selected symbol rate e Normal Symbol Rate GSM MSK or FSK AQPSK 8PSK EDGE 16QAM and 32QAM e Higher Symbol Rate HSR QPSK HSR 16QAM and HSR 32QAM For GSM the modulation to be used MSK or FSK is set by means of the parameter Modulation in the Modulation Filter menu Note Higher Symbol Rate Mode and Simulation Modes AQPSK 16QAM 32QAM HSR QPSK HSR 16QAM and HSR 32QAM require option R amp S SMx AMU K41 EDGE Evolution The graphical display shows the signal in Unframed mode no frames no power ramp ing Mode Framed single Slot Configuration Remote command SOURce lt hw gt BB GSM SMODe on page 64
8. FRAM is generated on the output connector The marker signal is generated after every specified number of frames A GSM EDGE frame has 1250 sym bols At a symbol rate of 270 833 ksymb s and a period of 1 the clock is 4 615 ms PULSe A pulsed marker signal is generated The pulse frequency PATTern A marker signal is generated with the aid of a user definable bit pattern The bit pattern is entered with the aid of command SOURce BB GSM TRIGg OUTP PATT The bit pattern is a maximum of 32 bits long RATio A regular marker signal corresponding to the Time Off Time On specifications in the commands SOUR BB GSM TRIGge OUTP OFFT and SOUR BB GSM TRIGg OUTP ONT is generated TRIGger A received internal or external trigger signal is output at the marker connector RST FRAMe BB GSM TRIG OUTP2 MODE PULS selects the pulsed marker for the corresponding marker signal See Marker Mode on page 38 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt ONTime lt OnTime gt SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt OFFTime lt OffTime gt The command sets the number of symbols in a period ON time OFF time during which the marker signal in setting SOURce BB GSM TRIGger OUTPut MODE RATio on the marker outputs is OFF Marker Settings Parameters lt OffTime gt integer Range 1 Symbol to 2424 1 Symbols Increment 1 Symbol RST 1 Symbol Example BB GSM TRIG OUTP2 OFFT 20 sets an OFF tim
9. STATe on page 101 Number of Slots Defines the number of consecutive slots that will be linked to a multislot The multislot always starts with the current slot The value range therefore depends on the current slot index A maximum of 8 slots slot 0 to slot 7 can be combined 1 8 current index Remote command SOURce lt hw gt BB GSM FRAMe lt di gt MULTislot lt st0 gt COUNt on page 98 VAMOS Offset Jitter enabled in R amp S SMU AMU Enables disables the simulation of a timing jitter for GMSK bursts Burst Editor The test specification 3GPP TS 45 005 Annex Q5 defines that for uplink tests in VAMOS mode both interference and sensitivity limited cases are specified for VAMOS subchannel 1 that is offset in time and frequency with respect to VAMOS subchannel 2 If this parameter is activated the instrument applys a timing offset jitter with ran domly selected value in the range of 1 0 or 1 symbol period The timing offset changes between the bursts within a burst the instrument keeps the time and fre quency offsets constant In the R amp S SMU the required frequency jitter can be simulated by means of the List Mode function of the instrument Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt VOJitter on page 99 Burst Fields Comprises settings for configuring of the individual burst fields The available settings depends on the selected Burst Type Extended
10. Section HSR 16QAM contains the parameters required to configure this modulation type 3 6 9 3 7 Power Ramping Slot Attenuation Modulation Type HSR 16QAM for Higher Symbol Rate only Displays the modulation type for the signal The modulation type 16QAM has 4 bits per symbol Remote command SOURce lt hw gt BB GSM H16Qam FORMat on page 73 Filter for Higher Symbol Rate only Indicates the filters used for the HSR 16QAM signal The two possible filters are displayed The currently used filter is set per HSR 16QAM slot with the parameter Filter Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FILTer TYPE on page 98 SOURce lt hw gt BB GSM FILTer H32Qam TYPE on page 78 HSR 32QAM Settings Section HSR 32QAM contains the parameters required to configure this modulation type Modulation Type HSR 32QAM for Higher Symbol Rate only Displays the modulation type for the signal The modulation type 32QAM has 5 bits per symbol Remote command SOURce lt hw gt BB GSM H32Qam FORMat on page 73 Filter for Higher Symbol Rate only Indicates the filters used for the 32QAM signal The two possible filters are displayed The currently used filter is set per HSR 32QAM slot with the parameter Filter Remote command SOURce lt hw gt BB GSM FRAMe di SLOT stO SUBChannel us USER lt ch gt
11. USER lt ch gt SOURce DATA PATTern lt Pattern gt Sets the data pattern for the internal data when PATTern is selected as the data source The length depends on the length of the data fields in the selected burst type Parameters lt Pattern gt 64 bits Burst Editor Example BB GSM SLOT2 TYPE ACC selects the Access burst type for slot 2 This burst type contains a 36 bit data field BB GSM SLOT2 DATA PATT selects Pattern as the data source BB GSM SLOT2 DATA PATT H801FA 20 generates the data for the data field in the burst Manual operation See Data on page 18 SOURce lt hw gt BB GSM FRAMe lt di gt MULTislot lt st0 gt STATe State Switches the multislot configuration on The suffix in MULTislot defines the first slot in a multislot group In a multiframe config uration this setting applies to the slots in all frames Parameters lt State gt 0 1 OFF ON RST 0 Example BB GSM MODE DOUB selects GSM mode Frame Double BB GSM SLOTO TYPE NORM selects the NORMal burst type for slot 0 SLOT1 SLOT selects burst type for slots 1 to 7 correspondingly BB GSM MULTO COUN 8 defines a multislot from all 8 slots BB GSM MULTO STAT ON switches the multislot configuration on Manual operation See Multislot Configuration on page 49 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SFLag lt SFlag gt The co
12. gt GSM EDGE 2 Select the Sequence Mode 3 Depending on the Sequence Mode select e Unframed Configuration or e Framed Single Configuration or e Framed Double Configuration The corresponding dialog opens and displays a graph of the current frame 4 Inthe frame graph Frame Select Slot to Configure select a slot EB GSM EDGE A BursteSlotO o o ae A1 Multislot Configuration Number Of Slots 1 Iv VAMOS Offset Jitter rsc 3 01 0001 1 11111 1111 This dialog contains the parameters for configuring a burst slot The graph shows the structure of the current burst type The individual fields of the burst type are color coded Burst Editor Field Color Data Fixed Mixed Stealing white Training Sequences TSC ETSC SYNC yellow Tail extended Tail green Guard extended Guard blue Higher Symbol Rate Mode AQPSK modulation and higher order modulations 16QAM and 32QAM require optionR amp S SMx AMU K41 EDGE Evolution Burst Type Selects the burst type The burst types available depend on the selected Symbol Rate Mode The symbole rate mode a burst type applies to is denoted Normal and HSR high symbol rate mode Note Higher Symbol Rate Mode AQPSK modulation and higher order modulations 16QAM and 32QAM require optionR amp S SMx AMU K41 EDGE Evolution Normal GMSK Full Rate The useful data is transmitted in the Normal Burst
13. All Data QPSK Burst sene 43 96 HSR QPSK BUNS avs eiecti ten 43 96 l Ignore 1 2 Symbol et ect a 61 Ignore 1 4 symbol ined sentencia 25 61 Ignore 72 Symbol ie eicit ra anaia SN 25 L Length of pseudo random bit string 18 50 Level Attenuation dd eee creen nutu intei 31 97 Load GSM seltlings ee eee teet 14 M Manual trigget oreet rrr here pe iE ee tie 83 Marker Delay 2x99 Market Mode arret emer err teer een 38 Marker Period 98 91 Market POSION S rsisi cnr innt ren eene nt tene 57 Marker Signal Tag 55 106 Measured external clock erre 41 Mixed Field ue ees n ec er ER e 53 Mode Framed double 20 62 Mode Framed single sssssseses 62 Mode Framed Single sss 18 Mode Unframed 16 62 Modulation Type 2 29 71 Modulation Type 16QAM niisiis 27 74 Modulation Type 32QAM seseee 28 74 Modulation Type AQPSK 26 Modulation Type EDGE 227 72 Modulation Type HSR 16QAM 28 73 Modulation Type HSR 32QAM 29 73 Modulation Type HSR QPSK 28 73 MSK die TIET 25 71 ung E 41 Multislot Configuration State sesesesesss 49 N NORMAL Half Rate Burst sssesese 43 96 Normal AQPSK NORMAL Burst Number of Slots O ON
14. Correction and Synchronization a Dummy Burst and bursts for test purpo ses All Data GSM and EDGE Not only can you generate half rate slots but you can also define multislots for HSCSD high speed circuit switched data and E GPRS general packet radio service configurations at the physical level if necessary allocat ing multiple slots to a single connection channel banding The optionR amp S SMx AMU K41 extends the available burst types with burst types defined for normal symbol rate and higher order modulation schemes such as the data burst Normal 16QAM and 32QAM and All_ Data 16QAM and 32QAM as well as with the burst types defined for higher symbol rates HSR QPSK 16QAM and 32QAM and HSR All_ Data QPSK 16QAM and 32QAM Higher symbol rates are achieved by reduction of the symbol period and employing of higher symbol rate bursts HB instead of the normal burst NB A normal burst con tains 116 encrypted symbols and uses time slots with normal duration 156 or 157 symbols long The higher symbol rate bursts carry information on full rate packet traf fic channels contain 138 encrypted symbols and use time slots with reduced symbol duration 187 or 188 symbols long Operating Manual 1171 5254 12 16 8 GSM EDGE Introduction The option R amp S SMx AMU K41 provides additionally the functionality to configure and generate burst for VAMOS operation All Data AQPSK and Normal AQPSK bursts for full and half rate operati
15. Fields Data Data Lc IET v pF User 2 Subchannel 2 Burst Fields ENDING el T 1 a 57 Burst Editor Normal 8PSK EDGE The higher bit clock associated with EDGE achieves correspondingly higher data transfer rates If a frame contains an active EDGE burst the higher bit clock 3 x symbol clock is always output on the clock outputs If the EDGE burst is removed from the frame the lower bit clock symbol clock is automatically output again An EDGE burst carries 2x 3 58 348 encrypted bits Burst Fields glo m M glo m o Normal 16QAM Selects a normal burst with 16QAM modulation scheme 4 bits per symbol A normal 16QAM burst carries 2x 4 58 464 encrypted bits DEI mmm Normal Selects a normal burst with 32QAM modulation scheme 5 bits per 32QAM symbol A normal 32QAM burst carries 2x 5 58 580 encrypted bits Burst Fields 290 290 Synchroniza Normal Symbol Rate tion The Synchronization burst is sent by the base station only and is used for bit synchronization For this purpose it contains a 64 bit Extended Training Sequence Burst Fields WC Tel WW E S WC Er JE WW 7 Frequency Normal Symbol Rate Correction The Frequency Correction burst is sent by the base station only The user equipment uses the burst in order to synchronize with the carrier frequency and to compensate for any possible Doppler effect H IH Dummy Normal Symbol Rate The Dummy burst is se
16. NB A normal burst carries 2 58 116 encrypted bits Burst Fields s Nash x 57 57 Normal GMSK Half Rate The useful data is transmitted in the Normal burst Half rate user 1 is transmitted in all the frames with an even index frames 0 2 4 etc and half rate user 2 is transmitted in the frames with an odd index frames 1 3 etc See alsochapter 3 3 Mode Framed single on page 18 cere 1 a Data E 28 mm a IL EI mm User i Burst Helds Data a Bi ENS TN mem Burst Editor Normal AQPSK Full Rate Full Rate The data of pair of users is multiplexed on the two VAMOS subchan nels of a single physical radio resource See also chapter 2 1 VAMOS Voice services over Adaptive Multi user channels on One Slot on page 9 Subchannel 1 Burst Fields x leo ox 57 57 Subchannel 2 Burst Fields Data Data wo um boom Normal AQPSK Full Rate Half Rate Three users are using the same radio resource one full rate VAMOS user on the subchannel 1 and two half rate VAMOS users on the sub channel 2 i User 1 Subchannel 2 Burst Fields s hz Hb a 57 57 User 2 Subchannel 2 Burst Fields s dz ox 57 57 Normal AQPSK Half Rate Half Rate A single time slot is shared by four users two VAMOS subchannels each used by two half rate users Subchannel 1 User 1 Subchannel 1 Burst Fields Ls liz hl x 57 57 ox bh 57 57 Subchannel 2 Burst
17. OFF Ratio Market sitive ts oor tct deene 38 90 P Pattern iret Rec ec tinea IRE DRE ENS 18 50 99 Power Ramp Control 5 n rr reines 29 PRBS eirnteenceonmet rh cerra ve 18 50 Pulse Divider Marker GSM EDGE nsss 92 Pulse Frequency Matker ees 38 92 R Ramp bd HON ao imreas pna NE 30 94 Ramp Time a31 95 Repetition of Frame rrr err nn 61 Repetition of Frames 21 Ee EE EN Rise Offset 31 94 Running Trigger E 34 84 S SAVE GSM IAM TE Save Recall Frames MG TE n Select Ramp to Edit 5 eir ro ro riter tre hp Set Synchronization Settings Set to default Signal Duration Trigger Signal Duration Unit Trigger a isisisrisirrirsississienirinas 34 85 Simulation mode GSMIEDGE riter eigens ee eI 17 Slot Attenuation 31 48 97 Slot Level 48 96 Slot Marker Definition eerte rnt 54 Standard settings 2119 EE 13 Stealing Flag WEE 51 101 Stopped Subchannel Power Imbalance Ratio 26 48 lee 24 Symbol Rate Mode 15 65 Sync Output to External Trigger siiin 35 Synchronization Burst 2 2 ie cete 43 96 Syrichronizatior ue TEE 40 Synchronization Mode nter trs 80 T HEURE CR UE E 50 Timing jitter VAMOS Training Sequence Training Sequence Sync Training Sequence Sync Acc
18. Remote command SOURce hw BB GSM FRAMe di ULISt DELete on page 67 SOURce hw BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt DELete on page 70 3 6 Modulation Filter This dialog provides access to the modulation and filter settings The selected symbol rate mode and symbol rate determine the available modulation types To access the Modulation Filter settings perform the following 1 Select Baseband gt config gt GSM EDGE 2 Select Modulation Filter This dialog contains the settings required for configuring the modulation types and the corresponding filter settings Higher Symbol Rate Mode AQPSK modulation and higher order modulations 16QAM and 32QAM are with option R amp S SMx AMU K41 EDGE Evolution SS GSM EDGE A Modulation Filter Symbol Rate 270 833 333 ksym s v Ignore 1 4 sym slot length 156 sym MSK FSK Angle a 1 45 000 0 deg gt Angle a 2 45 000 0 deg gt Angle a 3 45 000 0 deg gt Anglea 4 45 000 o dec Anglea 5 45 000 o dec gt Angle a 6 45 000 0 deg gt Angle a 7 45 000 0 deo gt Filter F SK 1bit sym m 67 7083 kiz SCPIR 0 10 000 o ae gt scpir1 0 0000 as scP 2 0 0000 as scP 3 0 0000 aB Cep Al 0 0000 as sep zl 0 0000 as gt scPm el 0 0000 aB gt scPm 7 0 000 0 aB gt Gauss linear Modulation Filter SS GSM EDGE A Modulation Fil
19. Tail Bits Burst Fields Displays the data content in the ETail data field of the Access burst Extended Tail Bits fields are 8 bits long and permanently set at 0011 1010 Remote command n a Tail Bits Burst Fields Displays the data content in the Tail data field The content depends on the Burst Type e Normal GMSK Normal AQPSK Synchronization Frequency Correction Dummy and Access Tail Bit field is 3 Bits long and permanently set at 000 e Normal 8PSK EDGE Tail Bit field is 9 Bits long and permanently set at 1 1111 1111 e Normal 16QAM Tail Bit field is 12 Bits long and permanently set at 0001 0110 0110 e Normal 32QAM Tail Bit field is 15 Bits long and permanently set at 111 1001 1100 1110 Remote command n a Data for Data Field of Slot Burst Fields Selects a data source for the DATA field If a burst contains multiple DATA fields these are treated as a continuous field and for instance a pseudo random sequence is continued without interruption from one DATA field to the next The following standard data sources are available e AILO All 1 An internally generated sequence containing O data or 1 data e PNxx An internally generated pseudo random noise sequence Burst Editor e Pattern An internally generated sequence according to a bit pattern Use the Pattern box to define the bit pattern e Data List Select DList A binary data from a data list internally or
20. Usage Setting only Manual operation See Save Recall on page 14 SOURce lt hw gt BB GSM SETTing STORe FAST Fast Determines whether the instrument performs an absolute or a differential storing of the settings Enable this function to accelerate the saving process by saving only the settings with values different to the default ones Note This function is not affected by the Preset function Parameters Fast 0 1 OFF ON RST 1 Manual operation See Save Recall on page 14 SOURce lt hw gt BB GSM SMODe lt SMode gt Selects the modulation signal for the mode Unframed BB GSM MODE UNFR The modulation type and filter type are set in accordance with the selection Primary Commands The available simulation modes depend on the selected symbol rate e Normal Symbol Rate GSM EDGE 8PSK AQPSK 16QAM and 32QAM e Higher Symbol Rate HSR QPSK HSR 16QAM and HSR 32QAM Note Higher Symbol Rate Mode and Simulation Modes AQPSK 16QAM 32QAM HSR QPSK HSR 16QAM and HSR 32QAM are available for instruments equipped with option R amp S SMx AMU K41 only Parameters lt SMode gt GSM EDGE N16Qam N32Qam HQPSk H16Qam H32Qam AQPSk RST GSM Example BB GSM MODE UNFR sets unframed mode BB GSM SRAT MODE HSR selects higher symbol rate mode BB GSM SMOD H16Q selects a HSR 16QAM modulation signal for the Unframed mode BB GSM SRAT MODE NSR selects normal symbol rate mode
21. a detailed description of the applications of this setting Parameters Output 0 1 OFF ON ON The signal calculation starts simultaneously with the external trigger event but because of the instrument s processing time the first samples are cut off and no signal is outputted After elapsing of the internal processing time the output signal is syn chronous to the trigger event OFF The signal output begins after elapsing of the processing time and starts with sample 0 i e the complete signal is outputted This mode is recommended for triggering of short signal sequen ces with signal duration comparable with the processing time of the instrument RST ON Example BB GSM TRIG SOUR EXT sets external triggering BB GSM TRIG EXT SYNC OUTP ON enables synchrounous output to external trigger Trigger Settings Manual operation See Sync Output to External Trigger on page 35 SOURce lt hw gt BB GSM TRIGger OBASeband DELay Delay Specifies the trigger delay expressed as a number of symbols for triggering by the signal from the second path Parameters lt Delay gt float Range 0 to 65535 Increment 0 01 RST 0 Example BB GSM TRIG SOUR OBAS sets for path A the internal trigger executed by the signal from the second path path B BB GSM TRIG OBAS DEL 200 sets a delay of 200 symbols for the trigger Manual operation See Trigger Delay on page 37 SOURce hw BB GSM TRIGger OBAS
22. burst This command is valid only when burst types that contain data fields are selected If a burst contains multiple DATA fields these are treated as a continuous field and for instance data such as a pseudo random sequence is continued without interruption from one DATA field to the next In GSM Mode Unframed this command defines the data source for the unframed sig nal The suffix in SLOT has to be set to 0 BB GSM SLOTO DATA Parameters lt Data gt ALLO ALL1 PATTern PN9 PN11 PN15 PN16 PN20 PN21 PN23 DLISt PNxx The pseudo random sequence generator is used as the data Source There is a choice of different lengths of random sequence DLISt A data list is used The data list is selected with the aid of com mand SOURce BB GSM SLOT DATA DLISt ALLO ALL1 Internal 0 or 1 data is used PATTern Internal data is used The bit pattern for the data is defined with the aid of command SOURce BB GSM SLOT DATA PATTern RST PN9 Example BB GSM SLOT2 TYPE NORM selects NORMAL burst type for slot 2 BB GSM SLOT2 DATA PN15 selects internal PRBS data with period length 215 1 as the data source for the DATA fields in the burst The pseudo random sequence is continued without interruption from one DATA field to the next Manual operation See Data List Management on page 14 Burst Editor SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt
23. derived internally from it The multiplier is entered with the com mand BB GSM CLOCk MULTiplier When FSYMbol is used a fraction of the symbol clock is supplied via the CLOCK con nector and the symbol clock is derived internally from this The divisor is entered with the command BB GSM CLOCk DIVider This selection is only possible for external signals with a clock rate of at least 200 Hz For two path instruments the only numerical suffix allowed for SOURCe is 1 since the external clock source is permanently allocated to path A Clock Settings Parameters lt Mode gt SYMBol MSYMbol BIT FSYMbol RST SYMBol Example SOURce1 BB GSM CLOCk MODE SYMBol selects clock type Symbols i e the supplied clock is a symbol clock Manual operation See Clock Mode on page 40 SOURce lt hw gt BB GSM CLOCk MULTiplier lt Multiplier gt Specifies the multiplier for clock type multiple in the case of an external clock source For two path instruments the only numerical suffix allowed for SOURce is 1 since the external clock source is permanently allocated to path A Parameters lt Multiplier gt integer Range 1 to 64 Increment 1 RST 4 Example SOURce1 BB GSM CLOCk SOURce EXT selects the external clock source SOURCe1 BB GSM CLOCk MODE MSYM selects clock type SOURCe1 BB GSM CLOCk MULTiplier 12 the multiplier for the external clock rate is 12 Manual operation See Clock Multipli
24. displayed in italics Links Links that you can click are displayed in blue font References References to other parts of the documentation are enclosed by quota tion marks Notes on Screenshots When describing the functions of the product we use sample screenshots These screenshots are meant to illustrate as much as possible of the provided functions and possible interdependencies between parameters The shown values may not represent realistic test situations The screenshots usually show a fully equipped product that is with all options instal led Thus some functions shown in the screenshots may not be available in your par ticular product configuration Naming of Software Options In this operating manual we explicitly refer to options required for specific functions of the digital standard The name of software options for signal generators vary in the name of the instrument but the option name is identical Therefore we use in this manual the placeholder R amp S SMx AMU Example Naming for an option of the vector signal generator R amp S SMBV100A e g e R amp S SMx AMU K98 stands for R amp S SMBV K99 The particular software options available for the corresponding instruments are listed on the back of the title page GSM EDGE 2 d Introduction Introduction The R amp S Signal Generator equipped with option R amp S SMx AMU K40 enables you to generate signals in accordance with the GSM EDGE st
25. ee reet de ER Et POR ab eee tes goa cd 72 SOURCeshw E BB GSM FIETer AQPSK TYPE ease eer 76 SOURG sliw BB GSM FIETer EDGE TYBPE iai rere depre pr IY ELSE iia 76 SOURceshw BB GSM FIETer Fi16Qam TYPE erret rne nere terri tert epa e 77 SOURce lt hw gt BB GSM FIL Tes EI DK d 78 SOURcesliw BB GSM FIETer HOPSKI TYPE 1er Gera tette at tt bien EE 78 SOURce lt hw gt BB GSM FILT er N16 Qam TYPE airis certet rrt tiene tr erret eontra denda 77 SOURce lt hw gt BB GSM FILTer N32Qam TYPE SOURceshw BB GSM FIETer PARAameter irren tren hne ir rne cr e onini SOURcCeshiw BB GSM FIETer TYPE iret etr heating ati De ene 76 SOURCeshw EBB GSM FONE ied cisci ense oot deed Rc Rus n edid e E HRS eee ements 61 Re RO Ee 71 SOURce hw BB GSM FRAMec di REPetitions essen 61 SOURce hw BB GSM FRAMe di ULISt CATalog essen ener 67 SOURce lt hw gt BB GSM FRAMe lt di gt ULISt DELete SOURce lt hw gt BB GSM FRAMe lt di gt ULISt LOAD ceceseccecesseeeceeseceeeeaeceeeaeraeeaeeseeeaesaeesaeseeeeaetareeaeeaees SOURce lt hw gt BB GSM FRAMe lt di gt ULISt STORe SOURceshw BB GSM FSK DEViatiOn eee tn enr en tbt ertet et SEENA deck ha Ed aeo Kn SOURceshw BB GSM Hf16Qam FORMA t u eri cte er tenen tot neta ste Henne dune o rax eaput 73 SOURce lt hw gt BB GSM HS2Qam FORMAt eet ict ot en kr er hah eege EES 73 SOURce lt h
26. externally generated Select Select DList to access the standard Select List dialog Select the Select Data List gt navigate to the list file dm_iqd gt Select to select an existing data list Use the New and Edit functions to create internally new data list or to edit an existing one Use the standard File Manager function to transfer external data lists to the instrument See also Main Dialog gt Data List Management Remote command SOURce lt hw gt BB GSM FRAMe di USER lt ch gt SOURce DATA on page 99 SOURce hw BB GSM FRAMe di SLOT stO SUBChannel us USER lt ch gt SOURce DATA PATTern on page 100 SOURCe hw BB GSM FRAMe di SLOT stO SUBChannel us USER lt ch gt SOURce DATA DLISt CATalog on page 100 SOURce lt hw gt BB GSM FRAMe di SLOT stO SUBChannel us USER lt ch gt SOURce DATA DLISt on page 100 Wei LOT lt st0 gt sSUuBChannel lt us gt Use Stealing Flag Burst Fields Sets the Use Stealing Flag feature The setting applies to both S fields If not used the flag stealing bit is allocated to the data field concerned which then becomes 58 data bits long instead of 57 Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SFLag USE on page 102 St
27. for level attenuation The various val ues are defined by the suffix to SATTenuation These values are used when defining the level attenuation of individual slots with the aid of the command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ATTenuation Primary Commands Parameters lt SAttenuation gt float Range 0 to 60 dB Increment 0 01 dB RST 0 dB Example BB GSM MODE SING selects GSM mode Frame Single BB GSM SLOT1 LEV ATT sets level attenuation mode for slot 1 BB GSM SATT1 12dB sets the level attenuation for selection A1 to 12 dB BB GSM SLOT1 ATT Al sets the level attenuation for slot 1 to 12 dB Manual operation See Slot Attenuation A1 to A7 on page 31 SOURce lt hw gt BB GSM SETTing CATalog This command reads out the files with GSM settings in the default directory The default directory is set using command MMEM CDIRectory Only files with the file extension gsm will be listed Return values Catalog string Example MMEM CDIR root dig mod sets the default directory to root dig mod BB GSM SETT CAT reads out all the files with GSM settings in the default directory Response gsm 1 Usage Query only Manual operation See Save Recall on page 14 SOURce lt hw gt BB GSM SETTing DELete Filename This command deletes the selected file with GSM settings The directory is se
28. for the level attenuation in dB see chap ter 3 7 Power Ramping Slot Attenuation on page 29 The currently selected ramp function and ramp time are displayed Remote command n a Trigger Marker Calls the Trigger Marker Clock dialog This dialog is used to select the trigger source configure the marker output signals and set the time delay on an external trigger signal see chapter 3 8 Trigger Marker Clock Settings on page 32 Remote command n a Execute Trigger Executes trigger manually You can execute the trigger manually only if you select an internal trigger source and a trigger mode other than Auto Remote command SOURce lt hw gt BB GSM TRIGger EXECute on page 83 Clock Calls the Trigger Marker Clock dialog This dialog is used to select the clock source see chapter 3 8 4 Clock Settings on page 40 Remote command n a Mode Unframed In Unframed mode a modulation signal without slot or frame structure is generated The modulated carrier without power ramping is often enough for initial tests and in case the complete signal is not yet needed Since all the modulation parameters for the signal are conform to the standard only the symbol rate mode normal or higher symbol rate and the modulation MSK or FSK for GSM 8PSK EDGE for EDGE and 16QAM EDGE or 32QAM EDGE for EDGE Evo lution have to be selected The symbol rate and filter configuration are set accordingly
29. from another instrument working in a master mode RST NONE Example BB GSM CLOC SYNC MODE MAST the instrument is configured to work as a master one Manual operation See Sync Mode on page 40 Trigger Settings EXTernal ch The numeric suffix to EXTernal lt ch gt distinguishes between the external trigger via the TRIGGER 1 suffix 1 and TRIGGER 2 suffix 2 connector SOURce hw BB GSM TRlGoerlGtOuence sse nennen 81 SOURce hw E BB GSM TRIGger ARM EXE C le aac tti reed ne nonae eade 82 SOURcexhw BB GSM TRIGger EXECUlte 1 1 icri ccrte secca uana saccum ia io Pens aiaiai 83 SOURce hw BB GSM TRIGger EXTernal SYNChronize OUTPut eese 83 TSOUbRcechwzslBBGGM TRlGoer OBAGeband DEI aw 84 SOURceshw BB GSM TRIGger OBASeband INHlibit eere nre 84 SOURce hw BB GSM TRIGger RMODe essere nnne rrr nn nns 84 SOURce lt hw gt BB GSM TRIGger SLENGtD ecceececeeecee cece sence ce eae ae nre nennen enn 85 Slab Es SET bloer SU E torret peat rre ret eae retten 85 SOURce lt hw gt BB GSM TRIGger SOURCG is risiini iasi adaini ni iiaii 86 SOURce lt hw gt BB GSM TRIGger EXTermal lt ch gt DELAY aiir 86 TSOUbRcechwzIPBBGSM TRlGoert ESTemakchzEINHbt AAA 87 SOURceshw BB GSM TRIGger EXTernal CLOCK DELay ee eee tne 87 SOURce shw BB GSM TRIGger EXTernal CLOCK INHIibit eu eonun nnne 87 SOURc
30. modes for each the normal and the higher symbol rate mode are available for configuring a GSM EDGE signal Mode Unframed a signal with standard compliant modulation parameters but without slot and frame structure is generated e Mode Frame Single a signal consisting of a frame is generated it is also possi ble to choose half rate bursts and to define multislots Mode Frame Double a signal consisting of two frames is generated the frames are repeated according to a defined default 2 1 VAMOS Voice services over Adaptive Multi user channels on One Slot According to 3GPP TS 45 001 with VAMOS it is possible to serve two MS simultane ously on the same physical resource Thus the voice channel capacity in the CS domain can be doubled Each of the two VAMOS users is assigned a so called VAMOS subchannel i e the physical radio resource is split into two subchannels one for each VAMOS user The two subchannels are separated in uplink and downlink via training sequences For this Operating Manual 1171 5254 12 16 9 VAMOS Voice services over Adaptive Multi user channels on One Slot purpose 3GPP TS 45 002 defines two sets of Training Sequence Codes TSC One VAMOS user subchannel gets a training sequence from TSC set 1 the other from TSC set 2 This ensures that the two training sequences have a very low cross correlation All mobiles must support TSC set 1 but only mobiles explicitly indicating support for VAMOS m
31. of the dialog is used for turning on the GSM EDGE digital standard and choosing the mode The Set to Default button calls the default settings for the GSM EDGE standard State oa Set To Default Save Recall Data List Management The subdialogs for choosing the modulation for setting the trigger and clock parame ters and for data list management are available to all modes For all modes except Unframed the subdialogs for saving and loading a frame and for setting the power ramping and slot attenuation are also available Sequence Mode Framed Singe zl Symbol Rate Mode Higher Symbol Rate zl Modulation Filter Power Ramp Slot Attenuations Cosine 2 0 sym Trigger Marker Auto d Clock Internal The lower part of the dialog displays the chosen frame configuration except in Unframed mode when it displays the signal configuration In this graphical display you can select the slot that you wish to edit The burst editor then opens GSM EDGE Main Menu Frame Select Slot To Configure Norm Norm 8PSK 320AM State Activates the standard and deactivates all the other digital standards and digital modu lation modes in the same path Remote command SOURce lt hw gt BB GSM STATe on page 66 Set to Default Calls the default settings The values of the main parameters are listed in the following table Parameter Value State Not affected by Set to Defau
32. of the release notes The current release notes are provided in the Internet Web Help The web help provides online access to the complete information on operating the R amp S Signal Generator and all available options without downloading The content of the web help corresponds to the user manuals for the latest product version The web help is available on the R amp S Signal Generator product page at the Down loads gt Web Help area Application Notes Application notes application cards white papers and educational notes are further publications that provide more comprehensive descriptions and background informa tion The latest versions are available for download from the Rohde amp Schwarz website at http www rohde schwarz com appnotes 1 2 Conventions Used in the Documentation 1 2 1 Typographical Conventions The following text markers are used throughout this documentation Convention Description Graphical user interface ele All names of graphical user interface elements on the screen such as ments dialog boxes menus options buttons and softkeys are enclosed by quotation marks KEYS Key names are written in capital letters 1 2 2 1 2 3 Conventions Used in the Documentation Convention Description File names commands File names commands coding samples and screen output are distin program code guished by their font Input Input to be entered by the user is
33. other things to test the reaction of receivers to interference laden training sequences e g 1 bit toggle Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC USER on page 103 Ext Training Seq ETSC Burst Fields Selects the Extended Training Sequence Code for the Synchronization burst There is a choice of three predefined 64 bit extended training sequences Additionally a user defined extended training sequence can be defined in the User ETSC field and is then also available for selection Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETSC on page 103 ETSC Pattern Burst Fields Edits selected ETSC for the Synchronization burst When a sequence has been changed the Ext Training Seq ETSC field also displays User as a possible choice When a frame slot is saved the changed extended training sequence is also saved Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETSC USER on page 103 Training Sequence Sync Burst Fields Selects Training Sequence Sync for the Access burst raining Sequence Sync User Sync Data Burst Editor There is a choice of three predefined 41 bit training sequences sync Additionally user defined training sequence syn
34. page 21 Remote command n a Frame Repetition Sets the number of repetitions for frame 1 or frame 2 First frame 1 is repeated the specified number of times and then frame 2 then frame 1 starts again and so on Remote command SOURce lt hw gt BB GSM FRAMe lt di gt REPetitions on page 61 Save Recall Frame Slots The Save Recall Frame dialog is accessed via the GSM EDGE main dialog The Save Recall Slots dialog is accessed via the Burst Editor dialog When you call the subdialog using the corresponding button a box opens from which you can select the function you require Recall Predefined Slot Recall User Frame Recall User Slot Save User Frame Save User Slot File Manager File Manager The File Select dialogs save and load i e recall user defined frames or slots Prede fined frames or slots can also be recalled Each dialog offer access to the File Man ager for general file management Predefined Frames and Slots are stored on a predefined path This path is automati cally set in the File Select dialog In the Normal Symbol Rate mode user defined Frames and Slots are stored as files with the specific file extensions gsm fuor gsm_s1lu respectively In the Higher Symbol Rate mode user defined Frames and Slots are stored as files with the specific file extensions gsm_hfu or gsm_hs1u respectively Independ ent of the selected symbol rate mode the files with user de
35. path cannot be specified Setting parameters lt Filename gt string Example BB GSM SLOT PRED LOAD GSM NB PN9 TSCO loads the settings of file GSM NB PN9 TSCO for slot 1 in frame 1 Usage Setting only Manual operation See Recall Predefined Frame Slot on page 22 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt CATalog This command reads out the files with user defined slot settings in the default directory The default directory is set using command MMEM CDIRectory Only files with the file extension gsm_slu and gsm hslu will be listed Return values lt Catalog gt string Save Recall Frame Slots Example MMEM CDIR lt root gt slots sets the default directory to lt root gt slots BB GSM SLOT ULIS CAT reads out all the files with user defined slot settings in the default directory Response test_01 the file test_01 with a user defined slot setting is available Usage Query only Manual operation See Recall User Frame Slot on page 23 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt DELete lt Filename gt This command deletes the selected file with user defined slot settings The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files w
36. see chapter 3 5 Save Recall Frame Slots on page 21 File Manager Remote command n a User x When burst type Normal Half Rate is selected the users can be set separately in dialog sections User 1 and User 2 Remote command n a SCPIR Selects the SCPIR The value of SCPIR affects the shape of the AQPSK constellation see figure 2 2 For an SCPIR of 0 dB the constellation is square as in normal QPSK while for other values of SCPIR the constellation becomes rectangular Use the Modulation Filter dialog to define eight different values for SCPIR You may select from the values displayed Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch SCPIRatio on page 97 Slot Level Sets the level for the selected slot Off Attenuation is maximum The slot is inactive Attenuated Level is reduced by the level attenuation set in Slot Attenuation Full The level corresponds to the level indicated in the display Remote command SOURce hw BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt LEVel on page 96 Slot Attenuation Selects the level attenuation for the Slot Level Attenuated setting Use the Power Ramping Slot Attenuation dialog to define seven different values for level attenuation You may select from the values displayed Remote command SOURce lt hw gt BB GSM FRAMe lt di gt S
37. shall be chosen such that SCPIR s10dB For a 45 the SCPIR equals 0 dB and the two power levels are equal AQPSK modulation is applied in the downlink if speech frames have to be transmitted on both subchannels simultaneously In this implementation you can set the SCPIR and configure the VAMOS subchannels TSC set and TSC used The available VAMOS settings depend on the mode the signal is generated in e Unframed Two data sources are provided one per each VAMOS subchannel the data is AQPSK modulated but only one SCPIR can be configured e Framed Single Full Rate Half Rate and combination of both slot types are supported The charac teristics of each of the half rate slots can be adjusted individually Separate data source is provided per each VAMOS subchannel and each user in half rate mode the data is AQPSK modulated and eight SCPIRs can be configured Training Sequence TSC set and TSC used can be configured on a VAMOS sub channel User basis Framed Double The settings of each of the two frames are as in the Framed Single mode GSM EDGE Main Menu 3 GSM EDGE User Interface TDMA Standards a To access the dialog for setting the digital standard select Baseband block gt GSM GSM EDGE EDGE or use the dialog tree under Baseband 3 1 GSM EDGE Main Menu The dialog offered differs according to the mode selected Most of the subdialogs and settings are available to all modes however The upper part
38. sym bols long When OFF is selected some slots are 188 symbols long Parameters lt ISLength gt 0 1 OFF ON RST OFF Primary Commands Example BB GSM SRAT MODE NSR selects normal symbol rate mode BB GSM ISL ON selects a constant length of 156 symbols for all slots Manual operation See Ignore 1 4 symbol slot length 156 sym Ignore symbol slot length 187 sym on page 25 SOURce lt hw gt BB GSM MODE Mode The command selects GSM mode Parameters lt Mode gt UNFRamed SINGle DOUBle MULTiframe UNFRamed Modulation signal without slot and frame structure SINGle Modulation signal consisting of one frame DOUBle Modulation signal in which two frames are defined and then combined by some method into a single multiframe signal MULTiframe Multiframe signal RST SINGle Example BB GSM MODE SING sets the Single Frame GSM mode Only the commands for defining a single frame are valid Manual operation See Sequence Mode on page 15 SOURce lt hw gt BB GSM PRESet Sets the parameters of the digital standard to their default values RST values speci fied for the commands Not affected is the state set with the command SOURce lt hw gt BB GSM STATe Example SOURce1 BB GSM PRESet Usage Event Manual operation See Set to Default on page 13 SOURce lt hw gt BB GSM SATTenuation lt ch gt lt SAttenuation gt The command sets up to seven different values
39. the frame in a higher symbol rate burst is then 1496 sym bols long instead of 1500 symbols Remote command n a Extended Guard Burst Fields Displays the data content of the Extended Guard field in the Access burst In order for a frame to contain exactly 1250 symbols as prescribed in the GSM stand ard the length of the extended Guard fields is different for different slots The field length is 68 bits in slots 1 2 3 5 6 7 and 69 bits in slots O and 4 If the field Ignore 1 4 symbol slot length 156 symbols is enabled all slots are 156 symbols long The extra 1 4 symbol is omitted The extended guard field for the burst always has the same length regardless of the slot index A frame is therefore 1248 symbols long in place of 1250 Remote command n a Slot Marker Definition Access the dialog for defining the marker signal at slot level This dialog is described in thechapter 3 10 Slot Marker Definition on page 54 Remote command n a Slot Marker Definition To call the Control List Editor for defining the marker signal at slot level use the Slot Marker Definition button in the burst editor of the GSM EDGE dialog GSM EDGE GSM EDGE User Interface Slot Marker Definition The marker signals thus defined take only efffect when marker mode As defined in slot is selected The structure of the selected slot in the example synchronization burst is displayed in the dialog header The indiv
40. type in the case of EDGE The modulation type is permanently set to 8PSK Return values lt Format gt P8EDge RST P8EDge Example BB GSM EDGE FORM queries the modulation type Response P8ED Usage Query only Manual operation See Modulation Type EDGE on page 27 SOURce lt hw gt BB GSM FSK DEViation Deviation Sets the modulation deviation when BB GSM FORMat FSK2 is selected The range of values depends on the symbol rate BB GSM SRATe The maximum deviation is 10 MHz Parameters Deviation float Range 0 1xf symb to 1 5xf symb 10MHz Increment 0 1 RST 67708 3333 Default unit Hz Example BB GSM FORM FSK2 selects the GSM modulation type GFSK BB GSM FSK DEV 37 6 kHz sets the FSK deviation to 37 6 kHz Manual operation See FSK Deviation on page 26 SOURce lt hw gt BB GSM AQPSk FORMat The command queries the modulation type The modulation type is permanently set to AQPSK Return values lt Format gt AQPSk RST AQPSk Example BB GSM AQPS FORM queries the modulation type Response AQPSk Usage Query only Options R amp S SMx AMU K41 Modulation Filter Settings Manual operation See Modulation AQPSK on page 26 SOURce lt hw gt BB GSM H16Qam FORMat The command queries the modulation type Return values lt Format gt QAM16EDge RST QAM16EDge Example BB GSM SRAT MODE HSR selects higher symbol rate
41. 16Qam TYPE on page 77 3 6 6 3 6 7 3 6 8 Modulation Filter 32QAM Settings Section 32QAM contains the parameters required to configure this modulation type requires option R amp S SMx AMU K41 Modulation Type 32QAM Displays the modulation type for the signal The modulation type 32QAM has 5 bits per symbol Remote command SOURce lt hw gt BB GSM N32Qam FORMat on page 74 Filter Indicates the filter used for the 32QAM signal The filter is permanently set to GAUSS linearized Remote command SOURce lt hw gt BB GSM FILTer N32Qam TYPE on page 77 HSR QPSK Settings Section HSR QPSK contains the parameters required to configure this modulation type requries option R amp S SMx AMU K41 EDGE Evolution Modulation Type HSR QPSK for Higher Symbol Rate only Displays the modulation type for the signal The modulation type QPSK EDGE has 2 bits per symbol Remote command SOURce lt hw gt BB GSM HOPSk FORMat on page 73 Filter for Higher Symbol Rate only Indicates the filters used for the HSR QPSK EDGE signal The two possible filters are displayed The currently used filter is set per HSR QPSK slot with the parameter Filter Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch FILTer TYPE on page 98 SOURce lt hw gt BB GSM FILTer HOPSk TYPE on page 78 HSR 16QAM Settings
42. 5 the SCPIR equals 0 dB and the two power levels are equal Remote command SOURce lt hw gt BB GSM AQPSk SCPIR lt ch0 gt on page 75 Filter Indicates the filter type used for AQPSK modulation The filter is permanently set to GAUSS linearized Remote command SOURce lt hw gt BB GSM FILTer AQPSK TYPE on page 76 8 PSK EDGE Settings Section 8PSK EDGE contains the parameters required to configure this modulation type Modulation Type EDGE Displays the modulation type for the EDGE signal The modulation type is set perma nently to 8PSK EDGE 3pi 8 8PSK Unlike the modulation types for GSM the modula tion type for EDGE has 3 bits per symbol Remote command SOURce lt hw gt BB GSM EDGE FORMat on page 72 Filter Indicates the filter used for the EDGE signal The filter is permanently set to GAUSS linearized Remote command SOURce lt hw gt BB GSM FILTer EDGE TYPE on page 76 16QAM Settings Section 16QAM contains the parameters required to configure this modulation type requires option R amp S SMx AMU K41 Modulation Type 16QAM Displays the modulation type for the signal The modulation type 16QAM has 4 bits per symbol Remote command SOURce hw BB GSM N16Qam FORMat on page 74 Filter Indicates the filter used for the 16QAM signal The filter is permanently set to GAUSS linearized Remote command SOURce lt hw gt BB GSM FILTer N
43. AM signal Parameters lt Type gt ENPShape EWPShape RST ENPShape Example BB GSM FILT H16Q TYPE ENPS 4 4 Clock Settings SOURce lt hw gt BB GSM FILTer H32Qam TYPE lt Type gt Sets the filter for HSR 32QAM signal Parameters lt Type gt ENPShape EWPShape RST ENPShape Example BB GSM FILT H32Q TYPE ENPS Manual operation See Filter on page 29 SOURce lt hw gt BB GSM FILTer HQPSk TYPE lt Type gt Sets the filter for HSR QPSK signal Parameters lt Type gt ENPShape EWPShape RST ENPShape Example BB GSM FILT HQPS TYPE ENPS Manual operation See Filter on page 28 Clock Settings This section lists the remote control commands necessary to configure the clock SOURcCe lt hw gt BB GSM CLOCKIMODE 2 5 ccces i0cece2ssigececestigauseessaspeseeeededeeteacieceecnucscese 78 SOURce shw BE GSMIGLOCKMDBETipller areis cera xc t ntes 79 SOURce lt hw gt BB GSM CLOCK RIVE 79 SOURce hw BB GSM CLOCK SOURCe esses rere hehehe en en ren en nnns 80 SOURce lt hw gt BB GSM CLOCk SYNChronization EXECute eese 80 SOURceshw BB GSM CLOCK SYNChronization MODE 5 1 creer eene nennt 80 SOURce lt hw gt BB GSM CLOCk MODE Mode Sets the type of externally supplied clock BB GSM CLOCk SOURce EXT When MSYMbol mode is used a multiple of the sample clock is supplied and the clock is
44. AMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNG USER EE 104 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt deer eub m 105 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FCORrection FIXed PATTEM cece ee eaeeeeaeae aaa akri ini iniaiaiai niaaa 105 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt DUMMY MIMeG PAT Tetrn iioii iacet nec deae retina naire 105 SOURce hw BB GSN FRAMe di SLOT st0 TYPE Type Selects the burst slot type Parameters Type NORMal HALF EDGE SYNC FCORrection DUMMy ACCess ADATa AEDGe N16Qam N32Qam A16Qam A32Qam HQPSk H16Qam H32Qam HAQPsk HA16Qam HA32Qam NAFF NAFH NAHH AAQPsk N16Qam N32Qam Normal 16QAM Normal 32QAM HQPSk H16Qam H32Qam HSR QPSK HSR 16QAM HSR 32QAM NAFF NAFH NAHH Normal AQPSK Full rate Full rate Normal AQPSK Full rate Half rate Normal AQPSK Half rate Half rate Axxxxx All Data The types All Data GSM ADATa All Data EDGE AEDGe All Data AQPSK AAQPSk All Data 16QAM A1 609am All Data 32QAM A32Qam HSR All Data QPSK HAOPsk HSR All Data 16QAM HA16Qam and HSR All Data 32QAM HA32Qam are not defined in the standard RST NORMal Example BB GSM SLOT TYPE DUMM sel
45. BB GSM SMOD GSM selects a GSM modulation signal for the Unframed mode Options R amp S SMx AMU K41 required for N16Qam N32Qam HQPSk H16Qam H32Qam AQPSk Manual operation See Simulation Mode on page 17 SOURce lt hw gt BB GSM SRATe lt SRate gt Sets the symbol clock Possible units are Hz kHz MHz Sym s kSym s MSym s Parameters lt SRate gt float Range 400 to 15000000 Increment 0 001 RST 270 833 kSym s Example BB GSM SRAT 270 9 kHz sets the symbol clock to 270 9 kHz Manual operation See Symbol Rate on page 24 SOURce lt hw gt BB GSM SRATe MODE Mode Set the symbol rate mode i e determines whether a normal bursts NB or higher sym bol rate bursts HB will be generated 4 2 Save Recall Frame Slots Parameters lt Mode gt NSRate HSRate RST NSRate Example BB GSM SRAT HSR selects higher symbol rate mode BB GSM SRAT queries the symbol clock Response 325 Options for instruments equipped with option K41 only Manual operation See Symbol Rate Mode on page 15 SOURce lt hw gt BB GSM STATe State Activates the standard and deactivates all the other digital standards and digital modu lation modes in the same path Parameters State 0 1 OFF ON RST 0 Example SOURce1 BB GSM STATe ON Manual operation See State on page 13 Save Recall Frame Slots SOURce shw BB GSM FRAMe di ULISt CATalog
46. D Filename This command loads the selected file with predefined frame settings The directory is pre set therefore a path cannot be specified Setting parameters Filename string Example BB GSM MODE SING selects GSM mode Frame Single BB GSM SRAT MODE NSR selects normal symbol rate BB GSM FRAM PRED LOAD doen loads file EdgeO with the predefined frame setting Edge Burst in Slot 0 Usage Setting only Save Recall Frame Slots Manual operation See Recall Predefined Frame Slot on page 22 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined CATalog This command reads out the files with predefined slot settings The directory is preset therefore a path cannot be specified The numeric suffixes in all key words are irrelevant for this command Return values lt Catalog gt string Example BB GSM SLOT PRED CAT reads out all the files with predefined frame settings Response GSM NB DND TSCO EDGE NB PN9 TSCO the files GSM NB PN9 TSCO and EDGE NB PN9 TSCO are available Usage Query only Manual operation See Recall Predefined Frame Slot on page 22 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined LOAD Filename This command loads the selected file with predefined slot settings The directory is pre set therefore a
47. ENGll e ii cro rrr adi e tei en EP RR 85 SOURceslhiWw EBB GSM TRIGger SEUNILE torneo onerosa epu sero ERA qe LEES eege ad 85 Ree ERENNERT 86 SOURce lt hw gt BB GSM TRIGger EXTernal lt ch gt DELay 86 SOURce hw BB GSM TRIGger EXTernal ch INHibit eee 87 SOURce hw BB GSM FRAMe di MUL Tielotzetttz COUN eene 98 LSOUbRce bwzsltBBGSMIERAMe dGTEMUL TilotzetGTATe 101 SOURce hw BB GSM FRAMe di PREDefined CATalog esee 68 SOURce hw BB GSM FRAMe di PREDefined LOAD esee enn LSOUbRce bwzsltBBGGSMIERAMe dlLSl OTeez TE SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt VOJitter SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ATTenuation 97 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt DUMMy IVF ATMS RE 105 SOURce hw BB GSM FRAMe di SLOT stO SUBChannel us USER ch ETSC 103 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETSC USER 103 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FCORS6CtHON FIM T 105 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt
48. GSM EDGE Digital Standard for R amp S9Signal Generators Operating Manual DON UI 1171 5254 12 16 oe 2 5 E E o D amp o Ee o o This document describes the following software options R amp S SMBV K40 K41 1415 8031 xx 1415 8460 xx R amp S SMU K40 K41 1160 7609 02 1408 7810 02 R amp S AMU K40 K41 1402 6106 02 1403 0253 02 R amp S SMATE K40 K41 1404 5107 02 1404 8306 02 R amp S SMJ K40 K41 1404 0305 02 1409 2706 02 This manual version corresponds to firmware version FW 3 20 281 xx and later of the R amp S SMBV100A FW 2 20 360 142 and later of the R amp S SMU200A R amp S SMATE200A R amp S9SMJ100A and R amp S AMU200A 2015 Rohde amp Schwarz GmbH amp Co KG M hldorfstr 15 81671 M nchen Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners The following abbreviations are used throughout this manual R amp S SMBV100A is abbreviated as R amp S SMBV R amp S SMU200A is abbreviated as R amp S SMU R amp S9AMU200A is abbreviated as R amp S AMU R amp S9SMATE200A is abbreviated as R amp S SMATE R amp S SMJ100A is abbreviated as R amp S SMJ R amp S WinIQSIM2 is abbreviated as
49. L gsm SOUR BB DM DLIS DATA 1 1 0 1 0 1 0 1 1 1 1 0 0 0 SOUR BB DM DLIS DATA APP 1 1 0 1 0 1 0 1 1 1 1 0 0 0 Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA on page 99 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA DLISt on page 100 Sequence Mode Selects GSM EDGE mode There are three modes available e Unframed see chapter 3 2 Mode Unframed on page 16 e Framed single see chapter 3 3 Mode Framed single on page 18 Framed double see chapter 3 4 Mode Framed double on page 20 Remote command SOURce hw BB GSM MODE on page 62 Symbol Rate Mode for instruments equipped with option R amp S Signal Generator K41 only Set the symbol rate mode i e determines whether a normal burst NB or higher sym bol rate burst HB will be generated Remote command SOURce lt hw gt BB GSM SRATe MODE on page 65 Mode Unframed Modulation Filter Calls the Modulation Filter dialog The Modulation dialog is used for setting the modu lation and filter parameters see chapter 3 6 Modulation Filter on page 23 Remote command n a Power Ramping Slot Attenuations Calls the Power Ramping Slot Attenuation dialog This dialog is used to set the power ramping parameters and for setting values
50. LISt LOAD 70 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt STORe 71 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce DATA 99 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA a EE 100 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce DATA DEISECATalOQ EE 100 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce DATA PAT Tet E 100 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce EE 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce KEE 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCce TSG USER EE 103 SOURce hw BB GSM FRAMe di SLOT stO USER ch TRIGger OUTPut TAG 106 SOURceshwsEBB GSMETRIGger SEQUENCE rreren per tenete rena rer ER eee tpe pepe serene vested 81 Index Symbols TGQAM BUISt EE 43 96 e RTE 43 96 A ACCESS EE All Data 16QAM Burst All Data 32QAM Burst All Data AQPSK All Data EDGE Burst D i All Data GSM Burst iiss
51. LOT lt st0 gt SUBChannel lt us gt USER lt ch gt ATTenuation on page 97 Filter Higher Symbol Rate slots require R amp S SMx AMU K41 Burst Editor Selects whether a Narrow Pulse Shape or a Wide Pulse Shape filter should be use for the selected burst type and modulation Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FILTer TYPE on page 98 Multislot Configuration Enables the previously set multislot mode Since multislot involves connecting multiple slots to a single user channel this configu ration is possible for Normal Full Rate bursts Normal PSK EDGE burst and EDGE Evolution bursts A number of multislot groups can be defined within a frame These are highlighted when the frame structure is displayed in the main dialog see chapter 3 3 Mode Framed single on page 18 Frame Select Slot to Configure Norm Norm Norm Norm Norm Norm The first slot in a multislot group is the master slot This determines the parameters of all the slots in the group All the slots in a multislot group therefore have identical parameters The multislot settings are valid for all the slots in the frames of a multiframe configura tion If slots 1 and 2 are connected for example both these slots are connected in all the frames of the multiframe signal Remote command SOURce lt hw gt BB GSM FRAMe lt di gt MULTislot lt st0 gt
52. M MIX PATT outputs the bit pattern of the Mixed field Response Usage Query only Manual operation See Mixed on page 53 4 9 Slot Marker Definition SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt USER lt ch gt TRIGger OUTPut TAG The command queries the content of the specified marker in the selected file Suffix lt di gt lt di gt lt st0 gt O 1 7 lt ch gt lt di gt Parameters lt Tag gt string Example BB GSM FRAM SLOTO UER1 TRIG OUTP TAG MARKER LIST 1 queries the content of the marker list 1 Response 0 1 59 0 64 1 70 0 Usage Query only Manual operation See Configure Control Signal on page 55 List of Commands L SOUbRcechwzslBB GSM AOPSkANGL ecchttz A 75 SOURCeshw BB GSM AQPSICFORMAaItU iiic scn a ENEE SEEEAEAEEEEE 72 SOURGeslw BB GSM AQPSISCPIBSSChO reti i rt rer e i beastie tannins 75 SOURcCeshiw5 BB GSM GEOCIDIVIGer 1 tere cire EU tr gb dete ie eee SOURcCeshw EBB GSM CEOGCKMOBDE ictu e potet ee o tni e Ebr eee red nce dH nce EE N SOURce lt hw gt BB GSM CLOCk MULTiplier SOURceshw BB GSM GEOCKSOUR GeO 1 xii eoe rte o paite cue EUER ER d ced tpe e ER Ve cte ie Dans SOURce hw BB GSM CLOCKk SYNChronization EXECute eese nennen 80 SOURce lt hw gt BB GSM CLOCk SYNChronization MODE essent 80 SOURce lt hw gt BB GSM EDGE F ORMat ca tiet ted
53. Multiplier Enters the multiplication factor for clock type Multiple Remote command SOURce hw BB GSM CLOCk MULTiplier on page 79 Symbol Clock Divider Enters the divider for clock type Fraction Remote command SOURce hw BB GSM CLOCk DIVider on page 79 Measured External Clock Provided for permanent monitoring of the enabled and externally supplied clock signal Remote command CLOCk INPut FREQuency Global Settings The buttons in this section lead to dialogs for general trigger clock and mapping set tings Global Trigger Clock Settings Calls the Global Trigger Clock Input Settings dialog This dialog is used among other things for setting the trigger threshold the input impe dance and the polarity of the clock and trigger inputs The parameters in this dialog affect all digital modulations and standards and are described in chapter Global Trigger Clock Input Settings in the Operating Manual User Marker AUX I O Settings Calls the User Marker AUX I O Settings dialog used to map the connector on the rear of the instruments See also User Marker AUX I O Settings in the Operating Manual Burst Editor 3 9 Burst Editor This dialog provides the settings for configuring a burst slot The burst type for the selected slot for example the burst structure determines the available parameters To access the burst slot settings perform the following 1 Select Baseband gt config
54. OT1 LEV ATT sets level attenuation mode for slot 1 BB GSM SATT1 12dB sets the level attenuation for selection A1 to 12 dB BB GSM SLOT1 ATT A1 sets the level attenuation for slot 0 to 12 dB Manual operation See Slot Attenuation on page 48 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SCPIRatio lt SCPIRatio gt The command selects one of eight possible values for the SCPIR The eight possible values are set using the command SOURce lt hw gt BB GSM AQPSk SCPIR lt ch0 gt Parameters SCPIRatio SCPIR7 SCPIR6 SCPIR5 SCPIRA SCPIR3 SCPIR2 SCPIR1 SCPIRO RST SCPIRO Burst Editor Example BB GSM AQPS SCPIR5 10 BB GSM SLOT SUBC2 SCPIR SCPIR5 Manual operation See SCPIR on page 48 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FILTer TYPE Type Selects whether a Narrow Pulse Shape or a Wide Pulse Shape filter should be use for the selected burst type and modulation Parameters Type ENPShape EWPShape RST ENPShape Example BB GSM SRAT MODE HSR selects higher symbol rate mode BB GSM FRAM1 SLOT1 TYPE H16Q selects HSR 16QAM burst type for slot 1 BB GSM FRAMI1 SLOT1 FILT TYPE EWPS selects Wide Pulse Shape filter for slot 1 Options R amp S SMx AMU K41 Manual operation See Filter on page 28 SOURce lt hw gt BB GSM FRAMe
55. OURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURcCeEDATAIDLEISEGATalog iieri eratac u dk co eee ea c bees eese ees 100 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch SOURS DATA PAT TEM DE 100 SOURce hw BB GSM FRAMe di MULTislot st0 STATe esses 101 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt lgrom m DE 101 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ER 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCES C SEW EE 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCE TS GSE WE 102 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCE TSC USER mirita true rae ot ea na gees ei Ro dc baad MERECE MM ERE E REA Mee 103 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETSC 103 Burst Editor SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETOC US E 103 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SV ING SELGE EE 104 SOURce lt hw gt BB GSM FR
56. R amp S WinlQSIMZ2 the license types 02 03 07 11 13 16 12 are abbreviated as xx Contents NR al gt e ee eee 5 1 1 Documentation Civerview mic icccccicsiccssscesssccectvescecceereessceeectessenaecttes senesneesseseereeseeeecties 5 1 2 Conventions Used in the Documentation eene nnnm 6 CNN ee ele le Re e UE 6 1 2 2 Notes on Screenshots uus ice ni one ter dee e DE a co X Red e ERR Le aga 7 1 2 3 Naming of Software Optons eene 7 UMUC NIN r 8 2 1 VAMOS Voice services over Adaptive Multi user channels on One Slot 9 3 GSM EDGE User Interface cccceececeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 12 3 4 GSM EDGE Main Menu nnne cccneeuasesnnetuucerancendereswueusecd ssuesneaceseecnseeraonscupevaes 12 3 2 Mode Unframed e egere han hint eegen 16 3 9 Mode Framed single rrr ttn eene Eed eret ERR Una noun cix 18 3 4 Mode Framed dou ble 5 eintreten intr repite ueniam thi sd oce enean AEEA a epa dus 20 3 5 Save Recall EE 21 KS WIEN el E 23 3 61 General Selig E 24 E IT EE 25 3 6 3 AQPSK Settings rtr ree taie tiit dre eei butun D SEENEN 26 3 0 4 8 PSK EDGE Settirigs SEENEN 27 3 65 16QAM Settings eet tace spades eon Putas M ens an eu ARE c RER 27 EE gue EE 28 3 6 7 IHSR QPSK e E 28 3 6 8 HSR 16QAM Settings EES EELER EES EENS 28 Ke le RTE e EE 29 3 7 Power Ramping Sl
57. Rce lt hw gt BB GSM TRIGger SLENgth lt SLength gt Sets the length of the signal sequence to be output in the Single trigger mode The unit is defined with command SOUR BB GSM TRIG SLUNi t It is possible to output deliberately just part of a frame an exact sequence of a frame or a defined number of repetitions of a frame Parameters lt SLength gt integer Range 1 to max RST 1 Example BB GSM SEQ SING sets trigger mode Single BB GSM TRIG SLUN SYMB sets unit symbol for the entry of signal duration BB GSM TRIG SLEN 200 sets signal duration of 200 symbols 200 symbols will be output after the next trigger event Manual operation See Signal Duration on page 34 SOURce lt hw gt BB GSM TRIGger SLUNit lt SLunit gt The command defines the unit for the entry of the length of the signal sequence SOUR BB GSM TRIG SLEN to be output in the Single trigger mode SOUR BB GSM SEQ SING Parameters lt SLunit gt Example Manual operation Trigger Settings FRAMe SYMBol RST FRAMe BB GSM SEQ SING sets trigger mode Single BB GSM TRIG SLUN FRAM sets unit frame for the entry of signal duration BB GSM TRIG SLEN 2 sets signal duration of 2 frames The current frame will be output twice after the next trigger event See Signal Duration Unit on page 34 SOURce lt hw gt BB GSM TRIGger SOURce Source Selects the trigger source Paramete
58. Settings Parameters lt Inhibit gt integer Range 0 Symbols to 2426 1 67 108 863 Symbols Increment 1 Symbol RST 0 Symbols Example BB GSM CLOC SOUR EXT selects the external clock source BB GSM TRIG SOUR ECL selects an external trigger by means of the external clock BB GSM TRIG EXT CLOC INH 200 sets a restart inhibit for 200 symbols following a trigger event 4 6 Marker Settings This section lists the remote control commands necessary to configure the markers SOURce hw E BB GSM TRIGger OUTPutDELay FIXed 1 21 eren nnn nnus 88 SOURce hw BB GSM TRIGger OUTTbutschzs D I au 89 SOURce hw BB GSM TRIGger OUTPut ch DELay MlNimum eene 89 SOURce hw BB GSM TRIGger OUTPut ch DELay MAXimum eese 89 SOURce hw BB GSM TRIGger OUTPut ch MODE sseeee eem 89 LSOUbRcechuwzslBBGGM TRlGoer OUT butschzs ON Time 90 SOURce lt hw gt BB GSM IRI Goer OUT Putsch ORF TImIG uiii eniti cent 90 SOURce hw BB GSM TRIGger OUTPut ch PATTern eee 91 SOURceshiw BB GSM TRIGger OUTPut ch PERiIaGd SI QT eir arret 91 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PERiod FRAMe eene 91 SOURce shw BB GSM TRIGger OUTPut ch PULSe DIVider eese 92 SOURce shw BB GSM TRIGger OUTPut ch PULSe FREQuency euesss 92 SO
59. TO T1 T2 USER RST TO Example BB GSM SLOT1 TYPE ACC selects Access burst for slot 1 BB GSM SLOT1 SYNC SEL T1 selects Sync sequence T1 Manual operation See Training Sequence Sync on page 52 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC USER lt User gt The command outputs the bit pattern of the User Sync sequence for the Access burst The length is 64 bits Superfluous bits are truncated on input Missing bits are filled with 0 The command is valid only for selection BB GSM SLOT SYNC SEL USER and for burst type selection BB GSM SLOT TYPE ACC Parameters User integer Range B0 1 to B111 41 RST Bit pattern from TO Example BB GSM SLOT1 TYPE ACC selects Access burst for slot 1 BB GSM SLOT1 SYNC SEL USER selects the User Sync sequence BB GSM SLOT1 SYNC USER HFFFFFFFFFFO 41 enters the User Sync sequence Manual operation See Sync Pattern on page 53 Burst Editor SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt FCORrection FlXed Fixed The command selects the content of the FIXED field for the Frequency Correction burst There is a choice of two predefined sequences STANdard and COMPact and if defined a USER sequence only for burst type selection BB GSM SLOT TYPE FCORrection Parameters Fix
60. TSC lt Etsc gt The command selects an extended training sequence for the Synchronization burst There is a choice of three predefined sequences STANdard CTS COMPact and if defined a USER sequence only for selection of burst type BB GSM SLOT TYPE SYNC Parameters lt Etsc gt STANdard CTS COMPact USER Example BB GSM SLOT TYPE SYNC selects Synchronization burst for slot 1 BB GSM SLOT ETSC CTS selects the extended training sequence CTS Manual operation See Ext Training Seq ETSC on page 52 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ETSC USER User only for selection of burst type BB GSM SLOT TYPE SYNC The command selects an extended training sequence for the Synchronization burst USER sequence Parameters lt User gt integer Burst Editor Example BB GSM SLOT TYPE SYNC selects Synchronization burst for slot 1 BB GSM SLOT ETSC USER selects the extended training sequence User BB GSM SLOT ETSC USER H5a5a5a5a5a5a5a5a 64 sets the ETSC Manual operation See ETSC Pattern on page 52 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC SELect lt Select gt The command selects a training sequence SYNC sequence for the Access burst only for burst type selection BB GSM SLOT TYPE ACC Parameters lt Select gt
61. The pattern is 142 bits long Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch FCORrection FIXed PATTern on page 105 Mixed Burst Fields Displays the data content of the Mixed field in the Dummy burst It contains a fixed 142 bit data content prescribed by the standard Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt DUMMy MIXed PATTern on page 105 Guard Burst Fields Displays the data content of the Guard field in binary notation 3 10 Slot Marker Definition In order for a frame to contain exactly 1250 bits for normal burst and 1500 for higher symbol rate burst as prescribed in the GSM standard the length of the Guard fields is different for different slots see table Normal Symbol Rate Slot 0 4 153 9 2 Guard Length 9 symbol periods 8 symbol periods Higher Symbol Rate Slot 0 2 4 6 13 5 7 Guard Length 11 symbol periods 10 symbol periods If the field Ignore 1 4 symbol slot length 156 symbols Ignore 75 symbol slot length 187 symbols is enabled all slots are 156 respectively 187 symbols long The extra 1 4 resp 1 2 symbols is omitted The guard field for the burst always has the same length regardless of the slot index For normal burst a frame is therefore 1248 symbols long instead of 1250 Respectively the length of
62. URce hw BB GSM TRIGger OUTPut DELay FlIXed Fixed The command restricts the marker delay setting range to the dynamic range In this range the delay can be set without restarting the marker and signal If a delay is entered in setting ON but is outside this range the maximum possible delay is set and an error message is generated The numeric suffix in OUTPut has no significance for this command since the setting always affects every marker Parameters Fixed 0 1 OFF ON RST OFF Example BB GSM TRIG OUTP DEL FIX ON restricts the marker signal delay setting range to the dynamic range Manual operation See Fix marker delay to current range on page 39 Marker Settings SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt DELay Delay Sets the delay between the signal on the marker outputs and the start of the frame slot expressed in terms of symbols Command BB GSM TRIGger OUTPut DELay FIXed can be used to restrict the range of values to the dynamic range i e the range within which a delay of the marker signals can be set without restarting the marker and signal Parameters Delay float Range 0 to 16777215 Increment 1E 3 RST 0 Example BB GSM TRIG OUTP DEL 16 sets a delay of 16 symbolsfor the corresponding marker signal Manual operation See Marker x Delay on page 39 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt DELay MINimum SOURce lt hw gt BB GSM TRIGger O
63. UTPut lt ch gt DELay MAXimum Queries the maximum marker delay for setting BB GSM TRIGger OUTPut DELay FIXed ON Return values Maximum float Range 0 to max Increment 1E 3 RST 2000 Example BB GSM TRIG OUTP DEL FIX ON restricts the marker signal delay setting range to the dynamic range BB GSM TRIG OUTP DEL MAX queries the maximum of the dynamic range Response 2000 the maximum for the marker delay setting is 2000 symbols Usage Query only Manual operation See Current Range without Recalculation on page 39 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt MODE lt Mode gt Defines the signal for the selected marker output Parameters lt Mode gt Example Manual operation Marker Settings SDEF FRAMe SLOT PULSe PATTern RATio TRIGger As defined in slots The marker defined in the burst editor is used SLOT A slot clock with the slot period specified using command SOUR BB GSM TRIG OUTP PER SLOT is generated on the output connector The marker signal is generated after every specified number of slots It is important to be aware of the var iation in the GSM EDGE slot length between 156 and 157 sym bols At a slot length of 156 symbols a period of 1 symbol and a symbol rate of 270 833 ksymb s the clock is 0 577 ms and at 157 symbols it is 0 580 ms FRAMe A frame clock with the frame period specified using command SOUR BB GSM TRIG OUTP PER
64. andard based on the GMSK and 8PSK modulation Option R amp S SMx AMU K41 EDGE Evolution extends the GSM EDGE signal generation with simulation of higher order modulations QPSK 16QAM and 32QAM for higher symbol rate bursts and higher order modulations 16QAM and 32QAM for normal symbol rate bursts To playback a signal from a waveform file created by the simulation software R amp S WinlQSIM2 the corresponding R amp S WinlIQSIM2 digital standard option must be installed GSM is a TDMA standard for cellular mobile radio networks and is used worldwide The R amp S Signal Generator is suitable as a signal generator for all GSM variants There is no restriction regarding the use of GSM slots EDGE slots and EDGE Evolution slots The R amp S Signal Generator can generate both the transmitter signal of a base station BS and the transmitter signal of user equipment UE Every TDMA frame consists of 8 timeslots or simply slots Each slot can be sepa rately turned on or off A maximum of 7 different level attenuation values can be defined and allocated separately to the 8 slots quite independently of one another In order to configure a slot it is necessary to define a burst type Different burst types are available depending on the installed options on the instrument For instruments equipped only with optionR amp S SMx AMU K40 you can choose between data bursts Normal full rate and half rate and EDGE control bursts Access Frequency
65. band Only On Enable the provided parameter to restrict power ramping to the baseband signal Ramp Function Sets the form of the transmitted power during the switching operation i e the shape of the rising and falling edges of the envelope Linear The transmitted power rises and falls linear fashion Power Ramping Slot Attenuation Cosine The transmitted power rises and falls with a cosine shaped edge This gives rise to a more favorable spectrum than the Linear setting Remote command SOURce lt hw gt BB GSM PRAMp SHAPe on page 94 Ramp Time Sets the power ramping rise time and fall time for a burst The setting is expressed in symbols The transmitted power must not be switched abruptly at the start and end of a burst because the switching operation would otherwise generate excessively strong non har monics the switching operation is therefore stretched over several symbol clocks Remote command SOURce lt hw gt BB GSM PRAMp TIME on page 95 Rise Delay Sets the offset in the rising edge of the envelope at the start of a burst A positive value gives rise to a delay and a negative value causes an advance The setting is expressed in symbols Remote command SOURce lt hw gt BB GSM PRAMp RDELay on page 94 Fall Delay Sets the offset in the falling edge of the envelope at the end of a burst A positive value gives rise to a delay and a negative value causes an advance The set
66. bit gt integer Range 0 to 65535 RST 0 Example BB GSM TRIG SOUR EXT selects an external trigger via the TRIGGER 1 connector BB GSM TRIG INH 200 sets a restart inhibit for 200 symbols following a trigger event Manual operation See Trigger Inhibit on page 37 SOURce lt hw gt BB GSM TRIGger EXTernal CLOCk DELay Delay The command specifies the trigger delay expressed as a number of symbols for external triggering via the clock input This command applies only if external clock source BB GSM CLOC SOUR EXT and trigger source external clock BB GSM TRIG SOUR CLOC are selected For two path instruments this command applies only for baseband path A Parameters Delay float Range 0 Symbols to 2 16 1 Symbols Increment 1 Symbol RST 0 Symbols Example BB GSM CLOC SOUR EXT selects the external clock source BB GSM TRIG SOUR ECL selects an external trigger by means of the external clock BB GSM TRIG EXT CLOC DEL 200 sets a delay of 200 symbols for the trigger SOURce lt hw gt BB GSM TRIGger EXTernal CLOCk INHibit lt Inhibit gt The command specifies the number of symbols by which a restart is to be inhibited fol lowing a trigger event This command applies only if external clock source BB GSM CLOC SOUR EXT and trigger source external clock BB GSM TRIG SOUR CLOC is selected For two path instruments this command applies only for baseband path A Marker
67. c can be defined in the User Sync field and is then also available for selection Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC SELect on page 104 Sync Pattern Burst Fields Edits the Training Sequence Sync for the Access burst When a sequence has been changed the Training Sequence Sync field also displays User as a possible choice When a frame slot is saved the amended training sequence sync is also saved Remote command SOURce hw BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SYNC USER on page 104 Fixed Burst Fields Selects the data content of the Fixed field in the Frequency Correction burst There is a choice of two fixed 142 bit data contents prescribed by the standard The User data content can also be selected This pattern can be edited in the Fixed Pattern field and must likewise be 142 bits long Standard X Standard User Fixed Pattern Guard Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch FCORrection FIXed on page 105 Fixed Pattern Burst Fields Displays the data content of the Fixed field in the Frequency Correction burst when Fixed Standard or Compact is selected Enter the data content of the Fixed field in the Frequency Correction burst when Fixed User is selected
68. cesses rennes Arigle alplia EE AQPSK Burst Arm Trigger Armed Auto Armed Retrigger Attenuation f Ulo ger CM E B Baseband KE Baseband filter 16QAM Baseband filter 32QAM Baseband filter AQPSK Baseband filter EDGE ssssssseeeeeeee Baseband filter HSR 16QAM Baseband filter HSR 32QAM Baseband filter HSR QPSK EDGE sss 28 Baseband OMY se n nter eterne 31 Burst iG dS Q ge 50 Burst Type C Gi ofe BT Latest 41 OCI Oe 40 Clock Multiplier 41 Clock Source sss 40 Clock Trigger Delai 87 lecker Ouere ort eere rt eege 87 Configure Control Signal 55 106 Constant slot length sssssssssseeee 25 61 Control Signal POSIOM secs pta rere er eee pere 57 COMMON el E Le WEE Conventions SCPI COMMAMNGS ioe eo ioo poe mere tese pergere Current Range without Recalculation Se CURSOR ur EE D Data GSM unframed esses 18 99 Data List Management rero enero repe 14 IR WEE 18 Data source for data fields of slot DO 99 Dera lt e EE 13 Delay Marker eenegen reb ERE rv e ed DO ERE Ras 39 Delete GSM Setting S coser trt erc AAE 14 Deviation FSK Modulation ssssssseeene 26 72 Bt 41 Documentation OVervieW sisp cierre rini re 5 Blue 43 96 E EI LEE ET 43 96 Edge TOn e
69. ch gt SOURce DATA DLISt lt DList gt The command selects a data list This command is only valid for bursts with DATA fields This data list is only used if it is set as the data source with the aid of com mand BB GSM SLOT DATA DLIS Parameters lt DList gt string Example BB GSM SLOT2 TYPE NORM selects NORMAL burst type for slot 2 BB GSM SLOT2 DATA DLIS selects internal data lists as the data source for DATA fields BB GSM SLOT2 DATA DLIS test selects the test data list The data list is continued without inter ruption from one DATA field to the next Manual operation See Data List Management on page 14 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce DATA DLISt CATalog This command reads out the data list files in the default directory The default directory is set using command MMEM CDIRectory Only files with the file extension dm iqd will be listed Return values lt Catalog gt string Example MMEM CDIR root dlist gsm sets the default directory to root dlist gsm BB GSM SLOT2 DATA DLIS CAT queries the available data lists in root dlist gsm Response test Ol test 02 data lists test 01 and test 02 are available in root dlist gsm Usage Query only Manual operation See Data for Data Field of Slot on page 50 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt
70. connector Use the Global Trigger Clock Settings dialog to define the polarity the trigger threshold and the input impedance of the trigger signal External Available if an external clock source is used The trigger event is the Clock signal on the CLOCK connector Remote command SOURce lt hw gt BB GSM TRIGger SOURce on page 86 Sync Output to External Trigger enabled for Trigger Source External Enables disables output of the signal synchronous to the external trigger event For R amp S SMBV instruments For or two or more R amp S SMBVs configured to work in a master slave mode for syn chronous signal generation configure this parameter depending on the provided sys tem trigger event and the properties of the output signal See the table below for an overview of the required settings Trigger Marker Clock Settings Table 3 1 Typical Applications System Trigger Application Sync Output to External Trig ger Common External Trigger event All instruments are synchronous ON for the master and the slave to the external trigger event instruments All instruments are synchronous OFF among themselves but starting the signal from first symbol is more important than synchronicity with external trigger event Internal trigger signal of the mas All instruments are synchronous OFF ter R amp S SMBV for the slave among themselves instruments On Corresponds to the default state of th
71. cted ON time OFF time ON time OFF time Remote command SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt ONTime on page 90 SOURce lt hw gt BB GSM TRIGger OUTPut ch 0FFTime on page 90 Trigger A marker signal is generated only when a trigger event occurs Then the signal is generated continuously Every subsequent trigger event causes a restart Remote command SOURce lt hw gt BB GSM TRIGger OUTPut ch MODE on page 89 3 8 3 Marker Delay The delay of the signals on the MARKER outputs is set in the Marker Delay section The R amp S SMBV supports only two markers Marker x Delay Enters the delay between the marker signal at the marker outputs and the start of the signal If the setting Fix marker delay to dynamic range is enabled the setting range is restricted to the dynamic range In this range the delay of the marker signals can be set without restarting the marker and signal Remote command SOURce lt hw gt BB GSM TRIGger OUTPut ch DELay on page 89 Current Range without Recalculation Displays the dynamic range within which the delay of the marker signals can be set without restarting the marker and signal The delay can be defined by moving the setting mark Remote command SOURce hw BB GSM TRIGger OUTPut ch DELay MINimum on page 89 SOURce lt hw gt BB GSM TRIGger OUTPut ch DELay MAXimum on page 89 Fix marker delay to current ra
72. e instrument per forms an absolute or a differential storing of the settings Enable this function to accelerate the saving process by saving only the settings with values different to the default ones Fast Save is not affected by the Preset function Calls the File Manager The File Manager is used to copy delete and rename files and to create new directories Remote command SOURce lt hw gt BB SOURce hw BB SOURce lt hw gt BB SOURce lt hw gt BB SOURce lt hw gt BB GSM SETTing CATalog on page 63 GSM SETTing LOAD on page 64 GSM SETTing STORe on page 64 GSM SETTing STORe FAST on page 64 GSM SETTing DELete on page 63 Data List Management Calls the Data List Management dialog This dialog is used to select and edit a data list GSM EDGE Main Menu 4 Data List Management Edit Data List None All data lists are stored as files with the predefined file extension dm_igqd The file name and the directory they are stored in are user definable The data lists must be selected as a data source in the Burst Editor Note All data lists are generated and edited by means of the SOURce BB DM subsys tem commands Files containing data lists end with dm iqd The data lists are Selected as a data source for a specific function in the individual subsystems of the dig ital standard Example Creating and editing the data list SOUR BB DM DLIS SE
73. e lt hw gt BB GSM TRIGger SEQuence Sequence The command selects the trigger mode Trigger Settings Parameters lt Sequence gt AUTO RETRigger AAUTo ARETrigger SINGle AUTO The frames are generated continuously RETRigger The frames are generated continuously A trigger event internal or external causes a restart AAUTo The frames are generated only when a trigger event occurs After the trigger event the signal is generated continuously Sig nal generation is stopped with command SOUR BB GSM TRIG ARM EXEC and started again when a trig ger event occurs ARETrigger The frames are generated only when a trigger event occurs The device automatically toggles to RETRIG mode Every subse quent trigger event causes a restart Signal generation is stop ped with command SOUR BB GSM TRIG ARM EXEC and star ted again when a trigger event occurs SINGIe The signal is generated only when a trigger event occurs After the trigger event the signal is generated once to the set sequence length SOUR BB GSM TRIG SLEN Every subse quent trigger event causes a restart RST AUTO Example BB GSM SEQ AAUT sets the Armed auto trigger mode the device waits for the first trigger e g with TRG and then generates the frames continu ously Manual operation See Trigger Mode on page 34 SOURce lt hw gt BB GSM TRIGger ARM EXECute The command stops signal generation for tr
74. e of 20 symbols for marker signal 2 Manual operation See Marker Mode on page 38 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PATTern Pattern Defines the bit pattern used to generate the marker signal in the setting SOURCe BB GSM TRIGger OUTPut MODE PATTern 0 is marker off 1 is marker on The pattern has a maximum length of 64 bits Parameters lt Pattern gt 64 bits Example BB GSM TRIG OUTP2 PATT H81 8 sets a bit pattern BB GSM TRIG OUTP2 MODE PATT activates the marker signal according to a bit pattern for the cor responding marker signal Manual operation See Marker Mode on page 38 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PERiod SLOT Slot The command sets the repetition rate for the slot clock at the marker outputs Parameters lt Slot gt integer Range 1 Slot to 2426 1 Slots Increment 1 Slot RST 1 Slot Example BB GSM TRIG OUTP2 MODE SLOT sets the slot clock for the corresponding marker signal BB GSM TRIG OUTP2 PER SLOT 16 sets a period of 16 slots i e the marker signal is repeated every 16th slot SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PERiod FRAMe Frame The command sets the repetition rate for the frame clock at the marker outputs Marker Settings Parameters lt Frame gt integer Range 1 Frame to 2426 1 Frames Increment 1 Frame RST 1 Frame Example BB GSM TRIG OUTP2 MODE FRAM sets the frame clock for the c
75. e ramp envelope This specifies the number of symbols over which the switching operation should be stretched when the transmitted power is turned on and off Parameters lt Time gt float Range 0 3 Symbols to 16 0 Symbols Increment 0 1 Symbols RST 5 0 Symbols Example BB GSM PRAM TIME 6 sets the duration of the switching operation to 6 symbols Manual operation See Ramp Time on page 31 Burst Editor SOURce lt hw BB GSM EFRAMe lt di gt SLOT lt StO gt TYPE aen nutu nhan nura nnn 96 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt LEVel 96 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt NR EE 97 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SC SE 97 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PALT Ste VP EE 98 SOURce lt hw gt BB GSM FRAMe lt di gt MULTislot lt stO gt COUNTL eeeeeseeeeeeeeeeeeeeeeeeeeeeees 98 SOURce chw BB GSN FRAMe di SLOT stO VOJitter esee 99 SOURce hw BB GSM FRAMe di SLOT sstO SUBChannel us USER ch SOURCE DATA Sa 99 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURCE DATA EE 100 S
76. ealing Flag Burst Fields Sets a value for the Stealing Flag feature The setting applies to both S fields Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER ch SFLag on page 101 Training Sequence Set Burst Fields Determine whether the GMSK normal burst or VAMOS subchannel uses TSC set 1 or Set 2 Assign different TSC set to each of the two subcahnnels to ensure that the training sequences configured for the VAMOS subchannels have a very low cross correlation Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC SET on page 102 Burst Editor TSC Burst Fields Selects the Training Sequence Code There are 8 predefined training sequences to choose from in each case those for GSM are 26 bits long and those for EDGE are 78 bits A user defined training sequence can be created in the User TSC field and is then also available for selection Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC SELect on page 102 TSC Pattern Burst Fields Edits selected training sequence When a sequence has been changed the TSC field displays the indication User When a frame slot is saved the amended training sequence is also saved User defined training sequences can be used among
77. eband INHibit lt Inhibit gt The command specifies the number of symbols by which a restart is to be inhibited fol lowing a trigger event This command applies only for triggering by the second path Parameters lt Inhibit gt integer Range 0 Symbols to 2432 1 67 108 863 Symbols Increment 1 Symbol RST 0 Symbols Example BB GSM TRIG SOUR OBAS sets for path A the internal trigger executed by the signal from the second path path B BB GSM TRIG OBAS INH 200 sets a restart inhibit for 200 symbols following a trigger event Manual operation See Trigger Inhibit on page 37 SOURce lt hw gt BB GSM TRIGger RMODe The command queries the status of frame generation for all trigger modes with GSM EDGE modulation on Trigger Settings Return values lt RMode gt STOP RUN RUN the GSM EDGE signal is generated A trigger event occurred in the triggered mode STOP the GSM EDGE signal is not generated A trigger event did not occur in the triggered modes or signal generation was stopped by the command BB GSM TRIG ARM EXECute armed trig ger modes only Example BB GSM TRIG SOUR EXT sets external triggering BB GSM TRIG MODE ARET selects the Armed_Retrigger mode BB GSM TRIG RMOD queries the status of frame generation Response RUN the frame is generated an external trigger was executed Usage Query only Manual operation See Running Stopped on page 34 SOU
78. ecifies that a symbol clock is supplied via the CLOCK connec tor Manual operation See Clock Source on page 40 SOURce lt hw gt BB GSM CLOCk SYNChronization EXECute Performs automatically adjustment of the instrument s settings required for the syn chronization mode set with the command BB GSM CLOC SYNC MODE Example BB GSM CLOC SYNC MODE MAST the instrument is configured to work as a master one BB GSM CLOC SYNC EXEC all synchronizations settings are adjusted accordingly Usage Event Manual operation See Set Synchronization Settings on page 40 SOURce lt hw gt BB GSM CLOCk SYNChronization MODE lt Mode gt Selects the synchronization mode This parameter is used to enable generation of very precise synchronous signal of sev eral connected R amp S SMBVs Note 4 5 Trigger Settings If several instruments are connected the connecting cables from the master instru ment to the slave one and between each two consecutive slave instruments must have the same length and type Avoid unnecessary cable length and branching points Parameters lt Mode gt NONE MASTer SLAVe NONE The instrument is working in stand alone mode MASTer The instrument provides all connected instrument with its syn chronisation clock including the trigger signal and its reference clock signal SLAVe The instrument receives the synchronisation and reference clock signal
79. ects DUMMY burst type for slot 1 Options R amp S SMx AMU K41 required for Higher Symbol Rate Mode higher order modulation schemes 16QAM and 32QAM and AQPSK modulation Manual operation See Burst Type on page 43 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt LEVel lt Level gt The command defines the power control level of the selected slot Burst Editor Parameters lt Level gt OFF ATT FULL OFF The slot is inactive ATT The power is reduced by the amount defined using BB GSM SLOT ATT FULL Full power as specified by the level setting RST Slot 0 FULL Slots 1 7 OFF Example BB GSM SLOT2 LEV FULL selects power control level Full Power for slot 2 Manual operation See Slot Level on page 48 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ATTenuation lt Attenuation gt The command selects one of seven possible values for the level attenuation This value defines by how much the power of the selected slot with power control level BB GSM SLOT LEV ATT will be reduced in relation to the normal output power attribute LEVEL FULL The seven possible values are set using the com mand SOURce BB GSM SATTenuation lt n gt Parameters lt Attenuation gt A1 A2 A3 A4 A5 A6 A7 Example BB GSM MODE SING selects GSM mode Frame Single BB GSM SL
80. ed STANdard COMPact USER RST STANdard Example BB GSM SLOT TYPE FCOR selects Frequency Correction burst for slot 1 BB GSM SLOT FCOR FIX COMP selects content type COMPact for the Fixed field Manual operation See Fixed on page 53 SOURce hw BB GSM FRAMe di SLOT st0 SUBChannel us USER lt ch gt FCORrection FlXed PATTern Pattern Sets the bit pattern of the FIXED field for the Frequency Correction burst The length is 142 bits Superfluous bits are truncated on input Missing bits are filled with 0 The command is valid only for the selection BB GSM SLOT FCOR FIX USER and for burst type selection BB GSM SLOT TYPE FCOR Parameters Pattern 142 bits RST 0 Example BB GSM SLOT TYPE FCOR selects Synchronization burst for slot 1 BB GSM SLOT FCOR FIX USER selects content type USER for the Fixed field BB GSM SLOT FCOR FIX PATT B0 142 enters the content of the field Manual operation See Fixed Pattern on page 53 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt DUMMy MIXed PATTern This command outputs the bit pattern of the Mixed field of the Dummy burst The con tents of the Mixed field is fixed and specified by the standard the length is 142 bits Return values lt Pattern gt 142 bits Slot Marker Definition Example BB GSM SLOT1 TYPE DUMM selects Dummy burst for slot 1 BB GSM SLOT1 DUM
81. ege Tt 30 94 See E 31 94 Edge SIO E 31 95 Sek et 29 ETSC Extended Training Sequence 103 ETSC Extended Training Sequence 52 Execute Trigger External Clock Trigger Delay External Clock Trigger Inhibit rne 87 F Bor de n Filter Parameter ccccccceceseeeeeeeeeeeeeeeeeneeeeeeneeeees Filter TYDS sates eas nio tore PLE Dc tU Im sous Filter Type 16QAM Filter Type e Filter TY PS AQP SK CM Filter Type EDGE srisesesuas Filter Type HSR 16QAM Filter Type HSR 32QAM Filter Type HSR QPSK esee 28 Fix marker delay to current range 39 88 ueni 53 105 Force Dummy Bits bo 25 61 Frame repetition ssessssssseeeeeeeneen 21 61 Framed double ssssssssssseeeeeee 20 62 Framed single KE 62 Framed Single e ntt rtt a 18 Frequency Correction Burst sssseessseeseserssrerresens 43 96 FSK DewviatiOni cheer tenera cuan rune 26 72 FSK Modulation ssesssssssseeeennnennnes 25 71 G Global Trigger Clock Settings esses 41 GSM EDGE Simulation mode cendi pd aes 17 GSM EDGE Mode G ard field WEE H Halfrate E 48 HSR 16QAMI BUrSt EE 43 96 HSR 32QAM MET 43 96 HSR All Data 16QAM Burst 43 96 HSR All Data 32QAM Burst 43 96 HSR
82. ence of the signal or a defined number of repetitions of the signal Remote command SOURce lt hw gt BB GSM TRIGger SLENgth on page 85 Running Stopped For enabled modulation displays the status of signal generation for all trigger modes e Running Trigger Marker Clock Settings The signal is generated a trigger was internally or externally initiated in triggered mode e Stopped The signal is not generated and the instrument waits for a trigger event Remote command SOURce lt hw gt BB GSM TRIGger RMODe on page 84 Arm For trigger modes Armed Auto and Armed Retrigger stops the signal generation until subsequent trigger event occurs Remote command SOURce lt hw gt BB GSM TRIGger ARM EXECute on page 82 Execute Trigger Executes trigger manually You can execute the trigger manually only if you select an internal trigger source and a trigger mode other than Auto Remote command SOURce lt hw gt BB GSM TRIGger EXECute on page 83 Trigger Source Selects trigger source This setting is effective when a trigger mode other than Auto has been selected Internal The trigger event is executed by Execute Trigger Internal Baseband A B two path instruments The trigger event is the trigger signal from the second path e External Trigger 1 2 The trigger event is the active edge of an external trigger signal supplied at the TRIGGER 1 2
83. endet den x Rd ER 66 e Modulation Filter Geitings sss eene nens 71 e Clock Set ligs rte rere der ee roc nee ne e rdg dcs 78 THOJE SONGS Em 81 e Marker de 88 e Power Ramping Slot Aitenuaton enne 93 LER Burst errr rr 95 e Slot Markei DEMON rrr xe cae e FR ee ERN Re 106 Primary Commands ESOURGe hwP ER e LEE 61 SOURce hw BB GSM FRAMecdi REPetitions eee 61 ESOURCeshw TEBBIGSMEISLerigth cde rper her RP IE na Fe Ree vedere eren eunti 61 SOURce hw BB GSM MODBDPE rneir cernerent ptt SEENEN SEKR La AE Fee eu ERE RR ai abaia ee 62 SOURceshw T e Ga E 62 SOURcexhw FBB GSM SATTenuationsche ni eiie cce oce ua Tab d cp ov D plc sp edad 62 ESOURce hw T BB GSM SET Ting CATalgg nein ce rerba une an cra EES 63 SOURCe amp hw BE GSMISET Ting DELele dde ere te reale ra eet s 63 SOURce lt hw gt BB GSMISET TingiL OAD 2 2 2 a i2 idee eee pee ey EYE dA ERRi 64 ESOURce shw I BB GSMISETTiGg S TOSS 1c atero ERROR RR EE ENEE 64 SOURce hw BB GSM SETTing STORe FAST sss nere 64 ESOURGeshw BBIGSNESMODJO uic cepta recent e ertt tex ertet cette tre cda xtd 64 SOURceshw EBB GSM SRATOe iiia code ed asco dau eodera rd ve ER be RT aa cheno 65 ESOURceshw TBB IGSMISRATE MODE roe ter Reborn pet ye ERR RERIRRRRRNAR 65 ESOURcGeshw BB GSM STA FE EE 66 Primary Commands SOURce lt hw gt BB GSM FONE lt FOne g
84. er on page 26 SOURce lt hw gt BB GSM FILTer AQPSK TYPE Queries the filter type for AQPSK modulation The filter is permanently set to GAUSS linearized Return values lt Type gt LGAuss RST LGAuss Usage Query only Options R amp S SMx AMU K41 Manual operation See Filter on page 27 SOURce lt hw gt BB GSM FILTer EDGE TYPE The command sets the filter type LGAuss This is the only possible selection in the case of digital standard GSM EDGE Modulation Filter Settings Return values lt Type gt LGAuss RST LGAuss Example BB GSM FILT EDGE TYPE LGA sets the filter type Gauss linearized Usage Query only Manual operation See Filter on page 27 Queries filter for 16QAM signal The filter is permanently set to GAUSS linearized Return values lt Type gt LGAuss Example BB GSM FILT N16Q TYPE queries the filter type Response LGA Usage Query only Options K41 Manual operation See Filter on page 27 SOURce lt hw gt BB GSM FILTer N32Qam TYPE Queries filter for 32QAM signal The filter is permanently set to GAUSS linearized Return values lt Type gt LGAuss Example BB GSM FILT N32Q TYPE queries the filter type Response LGA Usage Query only Options K41 Manual operation See Filter on page 28 SOURce lt hw gt BB GSM FILTer H16Qam TYPE lt Type gt Sets the filter for HSR 16Q
85. er on page 41 SOURce lt hw gt BB GSM CLOCk DIVider lt Divider gt Sets the divider for clock type Fractional Symbols BB GSM CLOCk MODE FSyYM in the case of an external clock source For two path instruments the only numerical suffix allowed for SOURCe is 1 since the external clock source is permanently allocated to path A Parameters lt Divider gt integer Range 1 to 65536 RST 4 Example BB GSM CLOC SOUR EXT selects the external clock source UJ B GSM CLOC MODE FSYM elects clock type Fractional Symbols i e the supplied clock as a rate which is a fraction of the symbol rate BB GSM CLOC DIV 2 the divider for the external clock rate is 2 2 0 Clock Settings Manual operation See Symbol Clock Divider on page 41 SOURce lt hw gt BB GSM CLOCk SOURCce Source Sets the clock source For two path instruments selecting EXTernal is only possible for path A since the external clock source is permanently allocated to path A Selection AINternal is only possible for path B Parameters lt Source gt INTernal EXTernal AINTernal INTernal The internal clock reference is used EXTernal The external clock reference is supplied to the CLOCK connec tor AINTernal The clock source of path A is used for path B RST INTernal Example BB GSM CLOC SOUR EXT selects an external clock reference The clock is supplied via the CLOCK connector BB GSM CLOC MODE SYMB sp
86. er tee Dt dp edere 83 SOURce lt hw gt BB GSM TRIGger EXTernal CLOCK DELay essent 87 SOURce hw BB GSM TRIGger EXTernal CLOCK INHibit essen 87 SOURce hw BB GSM TRIGger EXTernal SYNChronize OUTPut sse 83 SOURce lt hw gt BB GSM TRIGger OBASeband DELay m SOURce hw BB GSM TRIGger OBASeband INHibit eese SOURce hw BB GSM TRIGger OUTPut DELay FIXed herisita eterne nennen nennen 88 SOURce hw BB GSM TRIGger OUTPut ch DELay eese eene nennen nnne nnn 89 SOURce hw BB GSM TRIGger OUTPut ch DEL av MANimum 89 LSOUlbce bwzsltBB GSM TRlGoerOUTbPutzchz DEL av MiNimum 89 SOURce lt hw gt BB GSM TRIGger OUTPut chs MODE iiie ttt erret NEATE 89 SOURce hw BB GSM TRIGger OUTPut ch OFFTime essen eene 90 SOURce hw BB GSM TRIGger OUT Putsch gt ON T me eot n rne 90 LSOURce lt hw gt BB GSM TRIGger OUTPutseh gt PATTEM nennen eene EN SOURce hw BB GSM TRIGger OUTPut ch PERiod SLOT essen 91 SOURce hw BB GSM TRIGger OUTPut ch PERiod F RAMe eee 91 SOURce hw BB GSM TRIGger OUTPut ch PULSe DlVider esee 92 SOURce hw BB GSM TRIGger OUTPut ch PULSe FREQuency eeeeee 92 SOURceshwsErBB GSM TRIGger RMODSO tree tene tp ge e ner SEENEN 84 SOURC sliwP BB GSM TRIGger SE
87. ermines the effect of a trigger event on the signal genera tion e Auto The signal is generated continuously e Retrigger The signal is generated continuously A trigger event internal or external causes a restart Armed Auto The signal is generated only when a trigger event occurs Then the signal is gener ated continuously An Arm stops the signal generation A subsequent trigger event internal with or external causes a restart Armed Retrigger The signal is generated only when a trigger event occurs Then the signal is gener ated continuously Every subsequent trigger event causes a restart An Arm stops signal generation A subsequent trigger event internal with or external causes a restart e Single The signal is generated only when a trigger event occurs Then the signal is gener ated once to the length specified at Signal Duration Every subsequent trigger event internal or external causes a restart Remote command SOURce lt hw gt BB GSM TRIGger SEQuence on page 81 Signal Duration Unit Defines the unit for the entry of the length of the signal sequence to be output in the Single trigger mode Available units are symbols or frames Remote command SOURce hw BB GSM TRIGger SLUNi t on page 85 Signal Duration Enters the length of the signal sequence to be output in the Single trigger mode Use this parameter to deliberately output part of the signal an exact sequ
88. ess Burst 104 Trigger Delay Trigger Inhibit ates Trigger Inhibit Other Baseband sssssssss 84 Tigger Mode EE 81 Armed we 34 Auto e 34 Retrigger e 34 lu UE 234 Trigger parameters wae Bet Giele 35 RE 52 102 U Unframed 16 62 UE MEISTE 52 User ETSC cr hiemes 52 103 User Marker AUX I O Settings ssssss 41 User Sync Access Burst essssssseeee 53 User TSC cet ot ER oe e audience 102 103 V VAMOS Fading from burst to burst VAMOS offset jitter
89. fined Frames and Slots can be stored in a user determined directory and called from there It is not possible to use other file extensions Attempting to do so will cause an error message If the file extension is modified e g by directly accessing the file system the files are no longer recognized and therefore invalid In the following examples of commands the files are stored in the default directory which is defined by command MMEM CDIRectory Save Recall Frame Slots Recall Predefined Frame Slot Accesses the standard File Select dialog for loading a predefined frame slot EDGEO Predefined frame slot 0 On full level EDGE burst all other slots off EDGEAII Predefined frame all slots On full level EDGE burst GsmEdge Predefined frame alternately one slot with NORMAL burst and EDGE burst NormalBurstO Predefined frame slot 0 On full level NORMAL burst full rate all other slots off NormalBurstAll Predefined frame all slots On full level NORMAL burst full rate GSM NB PN9 TSCO Predefined slot NORMAL burst full rate full level attenuation A1 multislot Off number of multislots 1 Data PRBS 9 Use Stealing Flag On TSCO all slot marker set to all down GSM NB PN9 TSCO Predefined slot EDGE burst full rate full level attenuation A1 multislot Off num ber of multislots 1 Data PRBS 9 Use Stealing Flag On TSCO all slot marker set to all down Remote co
90. g To access this dialog select Main dialog gt Trigger Marker The Trigger In section is where the trigger for the signal is set Various parameters will be provided for the settings depending on which trigger source internal or exter Trigger Marker Clock Settings nal is selected The current status of signal generation Running or Stopped is indicated for all trigger modes The Marker Mode section is where the marker signals at the MARKER output con nectors are configured As Defined In Slots Fame ra On Off Ratio 135 416667 The Marker Delay section is where a marker signal delay can be defined either with out restriction or restricted to the dynamic section i e the section in which it is possi ble to make settings without restarting signal and marker generation The Clock Settings section is where the clock source is selected and in the case of an external source the clock type The buttons in the last section lead to subdialog for general trigger clock and mapping settings 3 8 1 Trigger Marker Clock Settings Trigger In The Trigger In section is where the trigger for the signal is set Various parameters will be provided for the settings depending on which trigger source internal or exter nal is selected The current status of signal generation Running or Stopped is indicated for all trigger modes Trigger Mode Selects trigger mode i e det
91. gger the first frame is repeated the specified number of times and then the second frame The frame struc tures are repeated cyclically but the useful data is continuously generated If one of the frames contains half rate slots and so actually consists of 2 frames itself the repetition factor must be a multiple of 2 seechapter 3 3 Mode Framed single on page 18 The frame structure of the two frames is displayed in graphical form Slot parameters can be defined in the burst editor which is called when the slot is selected in the graphical display seechapter 3 9 Burst Editor on page 42 rame1 Select Slot To Configure 0 1 2 3 5 6 T SaveRecall Frame Frame Repetition 1 rame2 Select Slot To Configure 0 1 2 3 5 6 T Save Recall Frame Frame Repetition 1 The following dialogs are offered e For saving and loading a frame structure see chapter 3 5 Save Recall Frame Slots on page 21 For selecting the modulation seechapter 3 6 Modulation Filter on page 23 e For selecting the trigger marker and clock see chapter 3 8 Trigger Marker Clock Settings on page 32 3 5 Save Recall Frame Slots For power ramping and defining the attenuation seechapter 3 7 Power Ramping Slot Attenuation on page 29 Save Recall Frame Provides access to the Save Recall Frame dialog for selecting of predefined or user defined frames see chapter 3 5 Save Recall Frame Slots on
92. h second slot gets an extra symbol and is 188 sym bols long while the rest uses a slot length of 187 symbols If the field Ignore 1 4 symbol slot length 156 symbols Ignore 72 symbol slot length 187 symbols is enabled all slots are 156 respectively 187 symbols long The extra 1 4 resp 2 symbol is omitted The guard field for the burst always has the same length regardless of the slot index For normal burst a frame is therefore 1248 symbols long instead of 1250 Respectively the length of the frame in a higher symbol rate burst is then 1496 sym bols long instead of 1500 symbols Remote command SOURce lt hw gt BB GSM ISLength on page 61 Force Dummy Bits to 1 A modulating bit stream consisting of consecutive ones is used for inactive slots according to GSM 05 04 If this parameter is disabled the inactive slots are filled in with O Remote command SOURce lt hw gt BB GSM FONE on page 61 MSK FSK Settings Section MSK FSK contains the parameters required to configure this modulation type Modulation Type GSM Selects the modulation type for the GSM signal e MSK 1bit symbol Minimum Shift Keying e FSK 1bit symbol Frequency Shift Keying Modulation Filter The selected modulation is also displayed in graphical form Remote command SOURce lt hw gt BB GSM FORMat on page 71 FSK Deviation Sets the deviation for FSK When MSK is selected the deviation is set pe
93. idual fields of the burst are color coded The available marker signals are also color coded In the left Configure Control Sig nal section each individual signal is assigned a color a check in the check box shows the marker for which the As defined in slot marker type has been selected In the next section Select Ramp to Edit the signal characteristics are graphically dis played The ramps can be assigned the exact bit position in the signal by means of e The schematic display of the slot above the section The bit scale below the marker control signal characteristic e The display of the current cursor position in the Cursor dialog section if the cursor marks the ramp The field at the selected position in the slot is displayed on the side The bit position of the cursor within this field is displayed below The ramps can be set either graphically in the Select Ramp to Edit section or in the table of the Positions Marker x section To make the setting easy a selection of pre set ramp characteristics is offered in the Preset Ramp Marker x section SS Slot Marker GSM A Frame 1 Slot 1 Provided are the following settings Configure Control Signal Displays the color the marker and the Burst Gate signal has been assigned Operating Manual 1171 5254 12 16 55 Slot Marker Definition Displays whether the CList marker mode has been selected for this marker signal see Marker Settings Dis
94. ies 2 69 138 unmodulated encrypted bits i e a HSR QPSK burst carries 2x 2 69 276 encrypted bits Burst Fields Em IIT n Em IIT a 38 Ce 38 HSR Higher Symbol Rate 16QAM Selects a higher symbol rate burst with 16QAM modulation scheme 4 bits per symbol A HSR 16QAM burst carries 4x 2 69 552 encrypted bits Burst Fields A tl aM 51 m o aM ae HSR Higher Symbol Rate 32QAM Selects a higher symbol rate burst with 32QAM modulation scheme 5 bits per symbol A HSR 32QAM burst carries 5x 2 69 690 encrypted bits Burst Fields gH 217 a E gH 217 a BR OM HSR All Data Higher Symbol Rate QPSK This and the following higher symbol rate burst types are not defined in the standard They serve as the output basis for defining a new burst type with user programmable data content for test purposes A HSR AII Data QPSK burst carries 2x177 354 encrypted bits HSR All Data Higher Symbol Rate 16QAM A HSR All Data 16QAM burst carries 4x177 708 encrypted bits Burst Fields C E HSR All Data Higher Symbol Rate 32QAM A HSR All Data 32QAM burst carries 5x177 885 encrypted bits Burst Fields le a M Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt TYPE on page 96 Burst Editor Save Recall Slots Recall User Slot Accesses the Save Recall Slot dialog with standard File Select and file manage Save User Slot ment functions
95. igger modes Armed_Auto and Armed_Ret rigger A subsequent internal or external trigger event restarts signal generation Example BB GSM TRIG SOUR INT sets internal triggering BB GSM TRIG SEQ ARET sets Armed_Retrigger mode i e every trigger event causes sig nal generation to restart BB GSM TRIG EXEC executes a trigger signal generation is started BB GSM TRIG ARM EXEC signal generation is stopped BB GSM TRIG EXEC executes a trigger signal generation is started again Trigger Settings Usage Event Manual operation See Arm on page 35 SOURce lt hw gt BB GSM TRIGger EXECute The command executes a trigger The internal trigger source must be selected using the command BB GSM TRIGger SOURce INTernal and a trigger mode other than AUTO must be selected using the command BB GSM SEQ Example BB GSM TRIG SOUR INT sets internal triggering BB GSM SEQ RETR sets Retrigger mode i e every trigger event causes signal gen eration to restart BB GSM TRIG EXEC executes a trigger Usage Event Manual operation See Execute Trigger on page 16 SOURce lt hw gt BB GSM TRIGger EXTernal SYNChronize OUTPut Output enabled for Trigger Source External Enables disables output of the signal synchronous to the external trigger event For R amp S SMBV instruments See also Sync Output to External Trigger on page 35for
96. ing new values The changes are accepted in the graphic display after pressing the Accept button Remote command n a Cursor Position Enters the cursor position In the graphic display the cursor is positioned according to the entry Vice versa graphically shifting the cursor will change the displayed value The field at the selected position in the slot is displayed on the side The bit position of the cursor within this field is displayed below Remote command n a Zoom Visible Zooms the displayed area of the control list The designation of the button changes from Zoom in to Zoom out With long control lists the displayed area can be zoomed around the current Cursor Position Slot Marker Definition Parameter Visible Bits Visible determines the number of symbols bits to be displayed Ramps outside the displayed area are not lost by zooming Remote command n a Save Saves the settings made in the Slot Marker dialog into a file with file name format GsmMarkSlotDefP x F y S z U w dm iqc where e xthe path number e yisthe Frame number zisthe Slot number and wisthe User number Remote command n a 4 Remote Control Commands The following commands are required to perform signal generation with the GSM EDGE options in a remote environment We assume that the R amp S Signal Generator has already been set up for remote operation in a network as described in the R amp S Signal Ge
97. is parameter The signal calculation starts simultaneously with the external trigger event but because of the instrument s processing time the first sam ples are cut off and no signal is outputted After elapsing of the inter nal processing time the output signal is synchronous to the trigger event Ext Trigger Event Calculated signal Signal at the output Trigger Marker Clock Settings Off The signal output begins after elapsing of the processing time and starts with sample 0 i e the complete signal is outputted This mode is recommended for triggering of short signal sequences with signal duration comparable with the processing time of the instrument Ext Trigger Event Calculated signal Signal at the output Processing time Remote command SOURce hw BB GSM TRIGger EXTernal SYNChronize OUTPut on page 83 Trigger Delay Delays the trigger event of the signal from e the external trigger source the other path Use this setting to e synchronize the instrument with the device under test DUT or other external devi ces Remote command SOURce hw BB GSM TRIGger EXTernal ch DELay on page 86 SOURce lt hw gt BB GSM TRIGger OBASeband DELay on page 84 Trigger Inhibit Sets the duration for inhibiting a new trigger event subsequent to triggering The input is to be expressed in samples In the Retrigger mode every trigger signal ca
98. ith the file extension gsm_slu and gsm hslu will be deleted Setting parameters Filename string Example BB GSM SLOT ULIS DEL NB deletes file NB Usage Setting only Manual operation See File Manager on page 23 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt LOAD Filename This command loads the selected file with user defined slot settings The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files with the file extension gsm_slu and gsm_hs1u will be loaded Setting parameters lt Filename gt string Example BB GSM SLOT ULIS LOAD NB loads file NB Usage Setting only Manual operation See Recall User Frame Slot on page 23 4 3 4 3 1 Modulation Filter Settings SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt STORe Filename This command stores the current slot settings into the selected file The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read Only the file name has to be entered User slots are stored as files with the specific file extensions gsm_slu and gsm hslu Setting parameters Filename string
99. l is generated at the start of each ARB sequence Frame A frame clock with the frame period specified under Period is gener ated on the output connector The marker signal is generated after every specified number of frames A GSM EDGE frame has 1250 symbols At a symbol rate of 270 833 ksymb s and a period of 1 the clock is 4 615 ms Pulse A regular marker signal is generated The pulse frequency is defined by entering a divider The frequency is derived by dividing the sample rate by the divider The input box for the divider opens when Pulse is selected and the resulting pulse frequency is displayed below it The maximum pulse frequency is half the symbol rate Remote command SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PULSe DIVider on page 92 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PULSe FREQuency on page 92 Pattern A marker signal that is defined by a bit pattern is generated The pat tern has a maximum length of 64 bits and is defined in an input field which opens when pattern is selected Remote command SOURce lt hw gt BB GSM TRIGger OUTPut ch PATTern on page 91 Trigger Marker Clock Settings ON OFF A regular marker signal that is defined by an ON OFF ratio is gener Period ated A period lasts one ON and OFF cycle The ON Time and OFF Time are each expressed as a number of samples and are set in an input field which opens when ON OFF ratio is sele
100. l rate mode BB GSM N160 FORM queries the modulation type Response QAM16ED Usage Query only Options for instruments equipped with option K41 only Manual operation See Modulation Type 16QAM on page 27 SOURce lt hw gt BB GSM N32Qam FORMat The command queries the modulation type Return values lt Format gt QAM32EDge RST QAM32EDge Example BB GSM SRAT MODE NSR selects normal symbol rate mode BB GSM N320 FORM queries the modulation type Response QAM32ED Usage Query only Options for instruments equipped with option K41 only Manual operation See Modulation Type 32QAM on page 28 Modulation Filter Settings SOURce lt hw gt BB GSM AQPSk ANGLe lt ch0 gt lt Angle gt Sets the angle alpha Parameters lt Angle gt float Range 0 0001 to 89 9999 Increment 0 0001 RST 45 Example BB GSM AQPS ANGL5 50 Options R amp S SMx AMU K41 Manual operation See Angle alpha O0 alpha 7 on page 26 SOURce lt hw gt BB GSM AQPSk SCPIR lt ch0 gt lt Scpir gt Sets the Subchannel Power Imbalance Ratio SCPIR It is related to the angle a as follows SCPIR 20 log tan a dB where the value of a shall be chosen such that SCPIR s10dB Parameters lt Scpir gt float Range 115 1625 to 115 1625 Increment 0 0001 RST 0 Example BB GSM AQPS SCPIR5 10 BB GSM AQPS ANGL5 Response 17 5484 Options R amp S SMx AMU K41 Manual opera
101. le BB GSM FRAM ULIS LOAD NB all loads file NB all Usage Setting only Manual operation See Recall User Frame Slot on page 23 Save Recall Frame Slots SOURce lt hw gt BB GSM FRAMe lt di gt ULISt STORe Filename This command stores the current frame settings into the selected file The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read Only the file name has to be entered User Standards are stored as files with the specific file extensions gsm fu and gsm hfu Setting parameters Filename string Example BB GSM FRAM ULIS STOR EDGE all stores the current frame settings into file EDGE a11 Usage Setting only Manual operation See Save User Frame Slot on page 23 SOURce hw BB GSN FRAMe di PREDefined CATalog This command reads out the files with predefined frame settings The directory is pre set therefore a path cannot be specified Return values Catalog string Example BB GSM FRAM PRED CAT reads out all the files with predefined frame settings Response Edge0 EdgeAll GsmEdge NormalBurstO0 NormalBurstAll the file names of the files with the predefined frame settings are returned Usage Query only Manual operation See Recall Predefined Frame Slot on page 22 SOURce lt hw gt BB GSM FRAMe lt di gt PREDefined LOA
102. lt Mode Framed single Modulation Symbol Rate Mode Normal Symbol Rate Symbol Rate 270 833 ksymb s Ignore 1 4 Off Force Dummy Bits to 1 Off Mod Type GSM MSK 1bit sym Filter Gauss Filter Par BT 0 3 Power Ramp Control Ramp Time 2 sym Function Cosine Slot Attenuation 1 7 0 dB Slot 0 Configuration Burst Type Normal full rate Slot Level Full Multislot Off Number of Slots 1 Data PRBS 9 GSM EDGE Main Menu Parameter Value Use Stealing Flag On Stealing Flag 0 TSC Set 1 TSC 0 Slot 1 7 Configuration Slot Level Off other settings as slot 0 Remote command SOURce lt hw gt BB GSM PRESet on page 62 Save Recall Calls the Save Recall dialog From the Save Recall dialog the File Select windows for saving and recalling GSM configurations and the File Manager can be called Recall GSM setting Save GSM setting File Manage Opens the File Select window for loading a saved GSM configura tion The configuration of the selected highlighted file is loaded by press ing the Select button Opens the File Select window for saving the current GSM signal configuration The name of the file is specified in the File name entry field the directory selected in the save into field The file is saved by pressing the Save button The Fast Save checkbox determines whether th
103. lt di gt MULTislot lt st0 gt COUNt Count Sets the number of slots combined in a multislot Since multislot involves connecting multiple slots to a single user channel this configuration is possible for Normal Full Rate bursts Normal 8PSK EDGE burst SOUR BB GSM FRAM SLOT TYPE NORM EDGE and EDGE Evolution bursts The suffix in MULTislot defines the first slot in a multislot group In a multiframe con figuration this setting applies to the slots in all frames Parameters Count integer Range 1 to 7 RST 1 Example BB GSM MODE SING selects GSM mode Frame Single BB GSM SLOT0 TYPE NORM selects the NORMal burst type for slot 0 SLOT1 SLOT7 selects burst type for slots 1 to 7 correspondingly BB GSM MULTO COUN 8 defines a multislot from all 8 slots BB GSM MULTO STAT ON switches the multislot configuration on Manual operation See Number of Slots on page 49 Burst Editor SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt VOJitter State available in R amp S SMU AMU Enables disables the simulation of a timing jitter for GMSK bursts Parameters lt State gt 0 1 OFF ON RST 0 Example SOURCe1 BB GSM FRAMe1 SLOT2 VOJitter ON Manual operation See VAMOS Offset Jitter on page 49 SOURce hw BB GSN FRAMe di SLOT stO SUBChannel us USER lt ch gt SOURce DATA Data The command defines the data source for the DATA fields in the
104. lue advances the ramp The setting is expressed in symbols Power Ramping Slot Attenuation Parameters lt FDelay gt float Range 9 Symbols to 9 Symbols Increment 1 Symbol RST 0 Symbols Example BB GSM PRAM FDEL 1 sets an advance of 1 symbol in the falling edge of the envelope at the end of the slot Manual operation See Fall Delay on page 31 SOURce lt hw gt BB GSM PRAMp RDELay lt RDelay gt The command sets the offset in the Rising edge of the ramp envelope at the start of a slot A positive value gives rise to a ramp delay and a negative value advances the ramp The setting is expressed in symbols Parameters lt RDelay gt float Range 9 Symbols to 9 Symbols Increment 1 Symbol RST 0 Symbols Example BB GSM PRAM RDEL 1 sets an advance of 1 symbol in the rising edge of the envelope at the start of the slot Manual operation See Rise Delay on page 31 SOURce lt hw gt BB GSM PRAMp SHAPe Shape The command sets the edge shape of the ramp envelope Parameters lt Shape gt LINear COSine LiNear The transmitted power rises and falls linear fashion COSine The transmitted power rises and falls in the shape of a cosine RST COSine Example BB GSM PRAM SHAP LIN sets a cosine shaped rise and fall to the edge Manual operation See Ramp Function on page 30 4 8 Burst Editor SOURce lt hw gt BB GSM PRAMp TIME Time The command sets the edge slope of th
105. mmand SOURce lt hw gt BB GSM FRAMe di PREDefined CATalog on page 68 SOURce lt hw gt BB GSM FRAMe lt di gt PREDefined LOAD on page 68 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined CATalog on page 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt PREDefined LOAD on page 69 Modulation Filter Recall User Frame Slot Access the standard File Select dialog for loading a user defined frame slot Remote command SOURce lt hw gt BB GSM FRAMe lt di gt ULISt CATalog on page 67 SOURce lt hw gt BB GSM FRAMe lt di gt ULISt LOAD on page 67 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt CATalog on page 69 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt ULISt LOAD on page 70 Save User Frame Slot Access the standard File Select dialog for saving the current frame or slot settings Remote command SOURce lt hw gt BB GSM FRAMe di ULISt STORe on page 68 SOURce lt hw gt BB GSM FRAMe di SLOT stO SUBChannel c us USER lt ch gt ULISt STORe on page 71 File Manager Access the standard File Manager dialog used to copy delete and rename files and to create new directories
106. mmand sets the Stealing Flag state only for Normal burst BB GSM SLOT TYPE NORM Parameters lt SFlag gt 0 1 RST 0 Example BB GSM SLOT2 TYPE NORM selects NORMAL burst type for slot 2 BB GSM SLOT2 SFL 1 sets Stealing Flags for slot 2 to the value 1 Manual operation See Stealing Flag on page 51 Burst Editor SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SFLag USE lt Use gt The command enables or disables the use of Stealing Flags If not used the Stealing Flags bits are allocated to the DATA fields only for Normal burst BB GSM SLOT TYPE NORM Parameters lt Use gt 0 1 OFF ON RST ON Example BB GSM SLOT2 TYPE NORM selects NORMAL burst type for slot 2 BB GSM SLOT2 SFL 1 sets Stealing Flags for slot 2 to the value 1 BB GSM SLOT2 SFL USE ON enables the use of Stealing Flags for slot 2 Manual operation See Use Stealing Flag on page 51 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC SELect lt Select gt The command selects the training sequence code The values specified in GSM 5 02 are TO T7 When USER is selected the value specified with the aid of the TSC USER command described next is used Parameters lt Select gt TO T1 T2 T3 T4 T5 T6 T7 USER RST TO Example BB GSM MODE SING selects Single Frame m
107. mode BB GSM H16Q FORM queries the modulation type Response QAMI6ED Usage Query only Options for Higher Symbol Rate and instruments equipped with option K41 only Manual operation See Modulation Type HSR 16QAM on page 28 SOURce lt hw gt BB GSM H32Qam FORMat The command queries the modulation type Return values lt Format gt QAM32EDge RST QAM32EDge Example BB GSM SRAT MODE HSR selects higher symbol rate mode BB GSM H320 FORM queries the modulation type Response QAM32ED Usage Query only Options for Higher Symbol Rate and instruments equipped with option K41 only Manual operation See Modulation Type HSR 32QAM on page 29 SOURce lt hw gt BB GSM HQPSk FORMat The command queries the modulation type Return values lt Format gt QEDGe RST QEDGe Modulation Filter Settings Example BB GSM SRAT MODE HSR selects higher symbol rate mode BB GSM HOPS FORM queries the modulation type Response QQDG Usage Query only Options for Higher Symbol Rate and instruments equipped with option K41 only Manual operation See Modulation Type HSR QPSK on page 28 SOURce lt hw gt BB GSM N16Qam FORMat The command queries the modulation type Return values lt Format gt QAM16EDge RST QAM16EDge Example BB GSM SRAT MODE NSR selects normal symbo
108. nal software option These manuals are available in PDF format in printable form on the Documentation CD ROM delivered with the instrument In the Operating Manual for the base unit all instrument functions are described in detail Furthermore it provides an introduction to remote control and a complete description of the remote control commands with pro gramming examples Information on maintenance instrument interfaces and error messages is also given In the individual option manuals the specific functions of the option are described in detail For additional information on default settings and parameters refer to the data sheets Basic information on operating the R amp S Signal Generator is not included in the option manuals Conventions Used in the Documentation Service Manual The Service Manual is available in PDF format in printable form on the Documenta tion CD ROM delivered with the instrument It describes how to check compliance with rated specifications on instrument function repair troubleshooting and fault elimina tion It contains all information required for repairing the instrument by the replacement of modules This manual can also be orderd in printed form see ordering information in the data sheet Release Notes The release notes describe new and modified functions eliminated problems and last minute changes to the documentation The corresponding firmware version is indicated on the title page
109. nerator documentation A knowledge about the remote control opera tion and the SCPI command syntax are assumed For a description of the conventions used in the remote command descriptions see section Remote Control Commands in the R amp S Signal Generator operating manual o Conventions used in SCPI command descriptions Common Suffixes The following common suffixes are used in remote commands Suffix Value range Description SOURce lt hw gt 12 available baseband signals OUTPut lt ch gt available markers R amp S SMBV supports two markers EXTernal lt ch gt FRAMe lt di gt external trigger connectors e in Frame Double mode SOURce BB GSM MODE DOUB1e this suffix defines the frame to which the setting applies e in Frame Single mode the keyword FRAMe is ignored and can be omitted When the keyword FRAMe is not specified the commands are compatible with the corresponding commands in the R amp S SMIQ generator family see also the list comparing R amp S SMU and R amp S SMIQ commands SLOT lt st0 gt O 1 7 defines the slot to which the setting applies Note SCPI prescribes that suffix 1 is the default state and used when no specific suffix is specified Therefore slot 1 and not slot 0 is selected when no suffix is specified SUBChannel us DI defines the VAMOS subchannel USER lt ch gt 1 l2 defines the half rate user in a half
110. nge Restricts the marker delay setting range to the dynamic range In this range the delay can be set without restarting the marker and signal Remote command SOURce lt hw gt BB GSM TRIGger OUTPut DELay FIXed on page 88 Trigger Marker Clock Settings 3 8 4 Clock Settings The Clock Settings is used to set the clock source and a delay if required Sync Mode for R amp S SMBV only Selects the synchronization mode This parameter is used to enable generation of very precise synchronous signal of sev eral connected R amp S SMBVs Note If several instruments are connected the connecting cables from the master instrument to the slave one and between each two consecutive slave instruments must have the same length and type Avoid unnecessary cable length and branching points None The instrument is working in stand alone mode Sync Master The instrument provides all connected instrument with its synchroni sation including the trigger signal and reference clock signal lock Settings Sync Mode Sync Master Set Synchronisation Settings Sync Slave The instrument receives the synchronisation and reference clock sig nal from another instrument working in a master mode Remote command SOURce lt hw gt BB GSM CLOCk SYNChronization MODE on page 80 Set Synchronization Settings for R amp S SMBV only Performs automatically adjustment of the instrument s settings required for the syn chr
111. nt The RF paths having separate frequency and level settings the remaining attenuation to be effected in the baseband would have to be different for the two paths and is therefore not possible When a bursted baseband signal GSM EDGE is combined with a continuous baseband signal e g 3GPP or a noise signal and both signals are applied to one RF path of an two path instru ment Blanking in the RF paths is not suitable because the RF section would not only blank the bursted signal of the first base band but also the continuous signal of the second baseband or the noise signal Remote command SOURce lt hw gt BB GSM PRAMp BBONly STATe on page 93 3 8 Trigger Marker Clock Settings on page 42 For instance at that level a data mask signal can be assigned to a marker connector Such settings take effect when the marker signal As defined in Slots is selected Additional marker settings are entered at the slot level see chapter 3 9 Burst Editor Synchronizing the R amp S Signal Generator to an external GSM frame sync signal When synchronizing the R amp S Signal Generator to an external GSM frame sync signal the following settings are recommended Trigger Mode Armed Auto e Trigger Source External Clock e Clock Source External e Clock Mode Fractional Symbol e Symbol Clock Divider 1250 The external GSM frame sync signal must be provided only at the clock input Trigger Marker Clock Dialo
112. nt by the base station only It acts as a modu lation signal when there is no data burst available This burst type is defined in the standard and has an unalterable precisely defined data pattern E mm LTD Access All Data GMSK All Data AQPSK All Data 8PSK EDGE All Data 16QAM All Data 32QAM Burst Editor Normal Symbol Rate This burst type is sent by a user equipment to a base station as the first burst in order to determine the timing advance It is used for syn chronizing with the base station Burst Fields 36 Normal Symbol Rate This and the following normal symbol rate burst types are not defined in the standard They serve as the output basis for defining a new burst type with user programmable data content for test purposes An All_Data GMSK burst carries 148 encrypted bits An All_Data AQPSK burst carries 148 encrypted bits per subchannel Subchannel 1 Burst Fields 148 Subchannel 2 Burst Fields 148 Normal Symbol Rate An All Data EDGE burst carries 3x148 444 encrypted bits Burst Fields i44 Normal Symbol Rate An Al Data 16QAM burst carries 4x148 592 encrypted bits Burst Fields 592 Normal Symbol Rate An All Data 32QAM burst carries 5x148 740 encrypted bits Burst Fields 740 Burst Editor HSR QPSk Higher Symbol Rate Selects a higher symbol rate burst with QPSK modulation scheme 2 bits per symbol A higher symbol rate burst carr
113. ode BB GSM SLOT2 TYPE NORM selects Normal burst for slot 2 BB GSM SLOT2 TSC SEL T3 selects training sequence code T3 for slot 2 Manual operation See TSC on page 52 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC SET Set Sets the TSC set for the corresponding GMSK normal burst or VAMOS subchannel user and slot Parameters lt Set gt SET1 SET2 RST SET1 Example BB GSM SLOT2 SUBC2 USER2 TSC SET SET2 Burst Editor Manual operation See Training Sequence Set on page 51 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC USER lt User gt The command specifies the user defined training sequence code This code is used if the USER parameter is set with the aid of the SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt SOURce TSC SELect command The length is 26 bits for BB GSM SLOT TYPE NORMal and 78 bits for BB GSM SLOT TYPE EDGE Parameters User integer Range B0 1 to B111 1 26 78 bits RST H0970897 Example BB GSM SLOT3 TSC USER H3FFFFFF enters the user defined training sequence for slot 3 Manual operation See TSC Pattern on page 52 SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt SUBChannel lt us gt USER lt ch gt E
114. on are available The modulation data is continuously inserted into the chosen slots in realtime In this fashion the data generator uses a digital signal processor to generate a data stream complete with modulation data and control signals for power ramping This data stream is converted into UO signals in the modulation encoder The signal is processed depending on the configured modulation scheme and selected symbol rate mode e n accordance with the GSM standard the MSK modulation type is set by default to a symbol rate of 270 833 ksymb s and Gauss filtering The symbol rate can be changed in the instrument FSK with adjustable span can also be used as the mod ulation type n accordance with the standard in the case of EDGE slots the 8PSK modulation type is set by default to 3 8 rotation at a symbol rate of 270 833 ksymb s and Gauss linearized filtering n accordance to EDGE Evolution specifications option R amp S SMx AMU KA1 the EDGE Evolution slots in a normal burst NB are 16QAM or 32QAM modulated at a symbol rate of 270 833 ksymb s and Gauss linearized filtering The EDGE Evolu tion slots in a higher symbol rate bursts HB are QPSK 16QAM or 32QAM modu lated at a symbol rate of 325 ksymb s and spectrally Narrow or Wide Pulse Shape filtering e In accordance to VAMOS specifications option R amp S SMx AMU K41 the slots are AQPSK modulated at a symbol rate of 270 833 ksymb s and Gauss linearized fil tering Three
115. onization mode selected with the parameter Synchronization Mode Remote command SOURce lt hw gt BB GSM CLOCk SYNChronization EXECute on page 80 Clock Source Selects the clock source Internal The internal clock reference is used to generate the symbol clock External The external clock reference is fed in as the symbol clock or multiple thereof via the CLOCK connector The symbol rate must be correctly set to an accuracy of 2 see data sheet The polarity of the clock input can be changed with the aid of Global Trigger Clock Settings In the case of two path instruments this selection applies to path A Remote command SOURce lt hw gt BB GSM CLOCk SOURce on page 80 Clock Mode Enters the type of externally supplied clock 3 8 5 Trigger Marker Clock Settings Symbol A symbol clock is supplied via the CLOCK connector Bit A bit clock is supplied via the CLOCK connector the symbol clock is derived internally from this Multiple Sym A multiple of the symbol clock is supplied via the CLOCK connector bol the symbol clock is derived internally from this Fractional A fraction of the symbol clock is supplied via the CLOCK connector Symbol the symbol clock is derived internally from this Note This selection is only available for external clock signals with a clock rate of at least 200 Hz Remote command SOURce lt hw gt BB GSM CLOCk MODE on page 78 Clock
116. orresponding marker signal BB GSM TRIG OUTP2 PER 16 sets a period of 16 frames i e the marker signal is repeated every 16th frame SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PULSe DIVider lt Divider gt The command sets the divider for the pulsed marker signal in the setting SOURce BB GSM TRIGger OUTPut MODE PULSe The pulse frequency is derived by dividing the symbol rate by the divider Parameters lt Divider gt integer Range 2 to 210 Increment 1 RST 2 Example BB GSM TRIG OUTP2 PULS DIV 2 sets the divider for the corresponding marker signal to the value 2 BB GSM TRIG OUTP2 FREQ queries the resulting pulse frequency of the marker signal Response 66 000 the resulting pulse frequency is 66 kHz Manual operation See Marker Mode on page 38 SOURce lt hw gt BB GSM TRIGger OUTPut lt ch gt PULSe FREQuency The command queries the pulse frequency of the pulsed marker signal in the setting SOUR BB GSM TRIG OUTP MODE PULS The pulse frequency is derived by dividing the symbol rate by the divider The divider is defined with command SOUR BB GSM TRIG OUTP PULS DIV Return values Frequency float 4 7 Power Ramping Slot Attenuation Example BB GSM TRIG OUTP PULS DIV 4 sets the divider for the corresponding marker signal to the value 4 BB GSM TRIG OUTP MODE PULS enables the pulsed marker signal BB GSM TRIG OUTP PULS FREQ queries the resulting pulse f
117. ot Attenuation ccccccccecsecceseeeeeeeeeeeeeeeeeeneeseseeseeeeeeeeseeeeeseeeenennes 29 3 8 Trigger Marker Clock Settings eese enne nnns 32 SEH Trigger Iu niic bx alee eeepc ribs c Ree ra urs Sven suede c RR er Y YR ee pw ea eee 34 302 Marker ModE Ee 38 3 9 3 Marker Delay ib Heri hr p EES AER 39 SOA Clock Setlngs usc cbe e ibn rib FUR c Fem cradle eripere ec ames e ERR RR EDU 40 3 9 5 Global Settings brit reo ERR User Edel 41 3 9 3 10 4 1 4 2 4 3 4 3 1 4 3 2 44 4 5 4 6 4 7 4 8 4 9 Burst Editor 42 Slot Marker Definitioh ca cceceesecccestteesesaececsece eancted scueeseveseseedenessaeneestedsceveeses 54 Remote Control Comman0qQs eese 59 dulde Tu EI EE 60 Save Recall Framej Slots itii rnnt tii n niteat irren st RE Eni ani 66 Modulation Filter Settings eeeeseseeeeeeeeeeeee nennen nenne nnn nnn nnn nnn nnn 71 Modulation Gettings nennen nnne 71 Filter Settings asming M 75 Clock Settinigs iet eere trie corr tects sodas easeesedecevesusiicesdexvenses 78 Trigger Setting Sirisiri noninar nna apania daaa aisa aUai iaaa Ndra dapin EAKA 81 Marker Settings eiie dence nii tee n ni rei Era solessatesessebxeeziedesxenees 88 Power Ramping Slot Attenuation esee 93 Burst Editor
118. plays whether the As defined in Slot marker mode has been selected for this marker signal The source can be selected here as well and will then be used in the associated dia logs Note The burst gate signal is only displayed and cannot be edited Remote command SOURce lt hw gt BB GSM FRAMe lt di gt SLOT lt st0 gt USER lt ch gt TRIGger OUTPut TAG on page 106 Select Ramp to Edit Graphically edit marker signals For this purpose the cursor is set to the position where a ramp is required The ramp is generated by pressing Enter e g clicking on the rotary knob Any number of ramps can be defined per marker Each of the generated ramp positions will be saved even if the definition of another ramp produces a low low or high high transition The ramps are displayed as dashed lines Existing ramps can be shifted after the cursor has been placed on the ramp and Enter has been pressed it then changes color twice The ramp is shifted by using the cur sor keys or the rotary knob The new position is determined by pressing Enter again Ramps can be deleted by means of the BACKSPACE key after the cursor has been placed on the ramp Remote command n a Total List Length Displays the length of the list in bits Remote command n a Preset Type Activates presetting for the ramp characteristic of the selected control signal The pre setting is selected with select Preset Type and activated by means of
119. rame The frame structure is repeated cyclically but the useful data is continuously generated Mode Framed single When a half rate slot has been selected two frames are generated alternately Each frame holds one of the two half rate users Example The following configuration is set from a frame with two slots that contain half rate users As a result the following two frames are generated alternately e Frame with half rate user 1 e Frame with half rate user 2 The following subdialogs are offered e For saving and loading a frame structure see chapter 3 5 Save Recall Frame Slots on page 21 For selecting the modulation see chapter 3 6 Modulation Filter on page 23 For selecting the trigger marker and clock see chapter 3 8 Trigger Marker Clock Settings on page 32 For power ramping and defining the attenuation see chapter 3 7 Power Ramping Slot Attenuation on page 29 3 4 Mode Framed double Save Recall Frame Access the Save Recall Frame dialog for selecting of predefined or user defined frames see chapter 3 5 Save Recall Frame Slots on page 21 Remote command n a Mode Framed double The Framed double mode generates multiframe signals which are defined by the structure of two frames For this purpose two frames are defined as in Framed single mode A repetition fac tor is then specified for each of the two frames Following a tri
120. rate mode Placeholder lt root gt For commands that read out or save files in the default directory the default directory is set using command MMI EM CDIRectory The examples in this description use the place holder lt root gt in the syntax of the command e pD for selecting the internal hard disk of a Windows instrument for selecting the memory stick which is inserted at the USB interface of a Windows instrument e var user for selecting the internal flash card of a Linux instrument Primary Commands e usb for selecting the memory stick which is inserted at the USB interface of a Linux instrument Tasks in manual or remote operation that are also performed in the base unit in the same way are not described here In particular this includes e Managing settings and data lists i e storing and loading settings creating and accessing data lists accessing files in a particular directory etc Information on regular trigger marker and clock signals as well as filter settings if appropriate General instrument configuration such as configuring networks and remote opera tion Using the common status registers For a description of such tasks see the R amp S Signal Generator operating manual 4 1 The following commands specific to the GSM EDGE are described here e Primary Commands ci rene E eod RA E ELA EE ERR ETE EHE EL RAE E AE 60 e Save Recall Frame lols e it e Iu c
121. requency for the marker signal Response 33 000 the resulting pulse frequency is 33 kHz Usage Query only Manual operation See Marker Mode on page 38 Power Ramping Slot Attenuation SOURce shw BB GSM PRAMp BBONIy STATe eeeeeee Hee 93 SOURGe hw rBE GSMEIPRAMEBIFDELSy iiec Lond tto e oett tete etaed use treated 93 SOURce shw EBB GSM PRAMDp RDEL9Qy 2 aai cria cito caeterae ed a eee RR ade 94 ESOURce hw TBB GSMIPRAMDp SHADe 1227 ata rng aE cre roii er exe b eee x EORR 94 Ree RER Se NEE 95 SOURce lt hw gt BB GSM PRAMp BBONIly STATe State Note This command is available for instruments with RF output only Selects power ramping in the baseband only or mixed power ramping in the baseband and the RF section The ON setting is mandatory if with power ramping active only the baseband signal is output UO outputs or in case of two path instruments if a baseband signal is applied to two RF paths RF A and RF B Only then can a signal with a defined predictable level be output Parameters State 0 1 OFF ON RST 0 Example BB GSM PRAM BBON ON selects power ramping in the baseband only Manual operation See Baseband Only on page 31 SOURce lt hw gt BB GSM PRAMp FDELay lt FDelay gt The command sets the offset in the Falling edge of the ramp envelope at the end of a slot A positive value gives rise to a ramp delay and a negative va
122. rmanently to symbol rate 4 Remote command SOURce lt hw gt BB GSM FSK DEViation on page 72 Filter Indicates the filter used for the GSM signal The filter is permanently set to GAUSS Remote command SOURce lt hw gt BB GSM FILTer TYPE on page 76 Filter Parameter Sets the BxT value for the GAUSS filter The GSM default value is 0 3 Remote command SOURce lt hw gt BB GSM FILTer PARameter on page 76 3 6 3 AQPSK Settings Section AQPSK contains the parameters necessary to configure this modulation type requires option R amp S SMx AMU K41 Modulation AQPSK ei Displays the modulation type for the GSM signal The modulation type is set perma nently to AQPSK see chapter 2 1 VAMOS Voice services over Adaptive Multi user channels on One Slot on page 9 Remote command SOURce lt hw gt BB GSM AQPSk FORMat on page 72 Angle alpha_0 alpha_7 Sets the angle alpha see chapter 2 1 VAMOS Voice services over Adaptive Multi user channels on One Slot on page 9 Remote command SOURce lt hw gt BB GSM AQPSk ANGLe ch0 on page 75 SCPIR 0 SCPIR 7 The power level of subchannel 1 relative to the power level of subchannel 2 is called Subchannel Power Imbalance Ratio SCPIR It is related to the angle a as follows SCPIR 20 log o tan a dB where the value of a shall be chosen such that SCPIR lt 10dB 3 6 4 3 6 5 Modulation Filter For a 4
123. rs lt Source gt Example Manual operation INTernal OBASeband BEXTernal EXTernal ECLock INTernal manual trigger or TRG EXTernal BEXTernal trigger signal on the TRIGGER 1 2 connector OBASeband trigger signal from the other path ECLock trigger signal on the CLOCK connector RST INTernal SOURCel BB GSM TRIGger SOURce EXTernal sets external triggering via the TRIGGER 1 connector See Trigger Source on page 35 SOURce hw BB GSM TRIGger EXTernal ch DELay Delay Specifies the trigger delay expressed as a number of symbols for external triggering The numeric suffix to EXTernal distinguishes between the external trigger via the TRIGGER 1 suffix 1 and TRIGGER 2 suffix 2 connector Parameters Delay Example float Range 0 to 65535 Increment 0 01 RST 0 BB GSM TRIG SOUR EXT selects an external trigger via the TRIGGER 1 connector BB GSM TRIG DEL 200 sets a delay of 200 symbols for the trigger Trigger Settings Manual operation See Trigger Delay on page 37 SOURce lt hw gt BB GSM TRIGger EXTernal lt ch gt INHibit lt Inhibit gt Specifies the number of symbols by which a restart is to be inhibited following a trigger event This command applies only in the case of external triggering The numeric suffix to EXTernal distinguishes between the external trigger via the TRIGGER 1 suffix 1 and TRIGGER 2 suffix 2 connector Parameters lt Inhi
124. sm u and gsm hfu will be listed Return values Catalog string Example MMEM CDIR root frames sets the default directory to lt root gt frames BB GSM FRAM ULIS CAT reads out all the files with user defined frame settings in the default directory Response NB all the file NB 11 with a user defined frame setting is available Usage Query only Manual operation See Recall User Frame Slot on page 23 SOURce lt hw gt BB GSM FRAMe lt di gt ULISt DELete Filename This command deletes the selected file with user defined frame settings The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files with the file extension gsm fu and gsm hfu will be deleted Setting parameters Filename string Example BB GSM FRAM ULIS DEL NB all deletes file NB a11 Usage Setting only Manual operation See File Manager on page 23 SOURce lt hw gt BB GSM FRAMe lt di gt ULISt LOAD Filename This command loads the selected file with user defined frame settings The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files with the file extension gsm fu and gsm_hfu will be loaded Setting parameters Filename string Examp
125. t A modulating bit stream consisting of consecutive ones is used for inactive slots according to GSM 05 04 If this parameter is disabled the inactive slots are filled in with 0 Parameters lt FOne gt 0 1 OFF ON RST OFF Example BB GSM FONE ON A modulating bit stream consisting of consecutive ones is used for inactive slots Manual operation See Force Dummy Bits to 1 on page 25 SOURce lt hw gt BB GSM FRAMe lt di gt REPetitions lt Repetitions gt The command defines the number of repetitions for the selected frame in GSM mode Frame Double Parameters lt Repetitions gt integer Range 1 to 500000 RST 1 1 Example BB GSM MODE DOUB selects GSM mode Frame Double BB GSM FRAM2 REP 10 sets 10 repetitions for frame 2 Manual operation See Frame Repetition on page 21 SOURce hw BB GSM ISLength lt ISLength gt Selects constant slot length For Normal Symbol Rate mode the command selects whether the 1 4 symbol of a GSM slot length 156 25 symbols will be ignored ON or compensated for by an extra symbol every 4th slot OFF When ON is selected all slots are 156 symbols long When OFF is selected some slots are 157 symbols long For Higher Symbol Rate mode the command selects whether the 1 2 symbol of a average slot with a length of 187 5 symbols will be ignored ON or compensated for by an extra symbol every secend slot OFF When ON is selected all slots are 187
126. t using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files with the file extension gsm will be deleted Setting parameters Filename string Example BB GSM SETT DEL gsm 1 deletes file gsm 1 Usage Setting only Manual operation See Save Recall on page 14 Primary Commands SOURce lt hw gt BB GSM SETTing LOAD Filename This command loads the selected file with GSM settings The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read The file extension may be omitted Only files with the file extension gsm will be loaded Setting parameters Filename string Example BB GSM SETT LOAD gsm 1 loads file gsm 1 Usage Setting only Manual operation See Save Recall on page 14 SOURce lt hw gt BB GSM SETTing STORe Filename This command stores the current GSM settings into the selected file The directory is set using command MMEM CDIRectory A path can also be specified in which case the files in the specified directory are read Only the file name has to be entered GSM settings are stored as files with the specific file extensions gsm Setting parameters Filename string Example BB GSM SETT STOR gsm 1 stores the current GSM settings into file gsm 1
127. ter Cc Symbol Rate 325 000 000 ksym s v Ignore 1 2 sym slot length 187 sym PR Force Dummy Bits to 1 Modulation Filter Modulation Modulation Filter r Narrow Pulse Shape Wide Pulse Shape HSR QPSK 16QAM EDGE Narrow Pulse Shape Wide Pulse Shape 32QAM EDGE Narrow Pulse Shape Wide Pulse Shape 8 PSK EDGE 8 PSK EDGE 3PI 8 8PSK 3 6 1 General Settings The upper section of the dialog contains the parameters to configure the general mod ulation settings Symbol Rate Sets the symbol rate 3 6 2 Modulation Filter The symbol rate is determined by the selected Symbol Rate Mode Normal Symbol Rate sets 270 833 33 ksymb s default symbol rate for GSM EDGE Higher Symbol Rate Sets 325 ksymb s default symbol rate for EDGE Evolution Remote command SOURce lt hw gt BB GSM SRATe on page 65 Ignore 1 4 symbol slot length 156 sym Ignore LG symbol slot length 187 sym Selects constant slot length This setting affects all burst types In a normal burst NB the GSM slot has a length of 156 25 symbols Compensation for the 1 4 symbol takes the form of an extra symbol every 4th slot This means that some slots are 156 long and some are 157 long Compensation takes place in the guard field of the burst seechapter 3 9 Burst Editor on page 42 In a higher symbol rate burst HB the average slot is 187 5 symbols long Compensa tion for 7 symbol means that eac
128. the Preset button You can select from All Up The marker signal is continuously high All Down The marker signal is continuously low Ramp Up The marker signal contains a ramp from low to high The ramp is shif ted to the center of the displayed signal area and can subsequently be shifted as required Ramp Down The marker signal contains a ramp from high to low The ramp is shif ted to the center of the displayed signal area and can subsequently be shifted as required Slot Marker Definition Ramp Up The marker signal contains a ramp from low to high and from high to Down low The ramps are symmetrically shifted around the center of the displayed signal area and can subsequently be shifted as required Ramp The marker signal contains a ramp from high to low and from low to Down Up high The ramps are symmetrically shifted around the center of the displayed signal area and can subsequently be shifted as required Remote command n a Edit Table Opens table by using the Edit Table button The ramps of the selected signal can be edited in the table When the table is opened the current configuration of the selected marker control signal is displayed g Position TableGSM A 0 0 Ramp Positions Ramp State The bit position is specified in the Ramp Position column the high or low signal sta tus in the Ramp State column At the end of the list there is always a blank row for enter
129. ting is expressed in symbols Remote command SOURce lt hw gt BB GSM PRAMp FDELay on page 93 Slot Attenuation A1 to A7 Sets the seven different values for level attenuation The burst editor can be used to set the level attenuation for the 8 slots to one of these predefined values independently of one another The ability to set a sequence of slots purposely to different levels loud soft loud in order to measure transmission stability is a requirement of measurement recommenda tion 11 21 in the latest GSM version 8 6 09 The burst editor is likewise used to assign the Slot Level attribute Attenuated to individual slots Remote command SOURce hw BB GSM SATTenuation lt ch gt on page 62 Baseband Only Restricts power ramping to the baseband signal Off Level attenuation is effected via the attenuator stages in the RF sec tion only the remaining part is attenuated in the baseband The sig nal is issued at the RF output with the defined level values This set ting provides the best possible dynamic for bursted signals Trigger Marker Clock Settings On Level attenuation affects the baseband only This setting is mandatory in the following cases e When only the baseband signal is issued at the UO outputs It is thus ensured that with power ramping active this signal is output with the defined level values When a baseband signal is applied to two RF paths of an two path instrume
130. tion See SCPIR 0 SCPIR 7 on page 26 4 3 2 Filter Settings Ree RER Ne dE 76 SOURce hw BB GSM FILTer PARameter esses nennen eren nnns 76 L SOURce shw BE GSMI FIETSEAQPSK TY PER Lectus petet de ee aecenas 76 ESOURcexhw prBB GSME FIETer EDGE TYBE 2c iion tice a EE ana cand 76 SOURce lt hw gt BB GSM FILTer N16Qam TYPE 7T SOURce lt hw gt BB GSM FILTer N32Qam TE 77 E SOURGeshw rBB GSM FIETerTHASOam TYPE attore orte ertet taa 77 SOURce lt hw gt BB GSMiFILTemHS2Q ami TYPE wc cccccvesccscsnessssscvesssancecesvderecevsdausreccucntnaccates 78 TSOUbRcechuwslBB GSM EI TerHObok TE 78 Modulation Filter Settings SOURce lt hw gt BB GSM FILTer TYPE The command sets the filter type GAUSs This is the only possible selection in the case of digital standard GSM Return values lt Type gt GAUSs RST GAUSs Example BB GSM FILT TYPE GAUS sets the filter type GAUSS Usage Query only Manual operation See Filter on page 26 SOURce lt hw gt BB GSM FILTer PARameter Parameter The command sets the filter parameter For Gaussian filter the BxT is the product of the bandwidth and the symbol duration The default value for GSM modulation is 0 3 and for Gauss Linearized EDGE BT 0 3 Parameters lt Parameter gt float Range 0 15 to 2 5 Increment 0 01 RST 0 3 Example BB GSM FILT PAR 0 4 sets the BT value to 0 4 Manual operation See Filter Paramet
131. uses signal generation to restart This restart is inhibited for the specified number of samples This parameter is only available on external triggering or on internal triggering via the second path For two path instruments the trigger inhibit can be set separately for each of the two paths Remote command S0URce hw BB GSM TRIGger EXTernal ch INHibit on page 87 SOURce lt hw gt BB GSM TRIGger OBASeband INHibit on page 84 Trigger Marker Clock Settings 3 8 2 Marker Mode The marker output signal for synchronizing external instruments is configured in the marker settings section Marker Mode The R amp S SMBV supports only two markers Marker Mode Selects a marker signal for the associated MARKER output As defined in The marker defined for each slot separately in the burst editor is Slots used The name of the marker is displayed to the right of the selec tion Definition of the slot marker is described in chapter 3 10 Slot Marker Definition on page 54 Slot A slot clock with the slot period specified under Period is generated on the output connector The marker signal is generated after every specified number of slots It is important to be aware of the variation in the GSM EDGE slot length between 156 and 157 symbols At a slot length of 156 sym bols a period of 1 symbol and a symbol rate of 270 833 ksymb s the clock is 0 577 ms and at 157 symbols it is 0 580 ms Restart A marker signa
132. ust also support TSC set 2 In the uplink two GMSK modulated signals interfere with each other and the base sta tion receiver requires an advanced multi user detection algorithm In the downlink a novel modulation scheme is used for each subchannel The two sub channels are combined orthogonally by mapping them to the and Q axis This results in a QPSK modulation scheme where each constellation point has a subchannel 1 component and a subchannel 2 component as shown in the following figure Q Subchannel 2 Subchannel 1 Fig 2 1 QPSK modulation sum of both subchannels In this figure both subchannels use the same power level VAMOS allows subchannel specific power control so that the two subchannels can use different power levels e g when the two users are located at different distances from the base station The result ing modulation scheme is called Adaptive QPSK AQPSK The following figure shows an example where subchannel 2 mapped to the Q axis uses a higher power level than subchannel 1 mapped to the l axis VAMOS Voice services over Adaptive Multi user channels on One Slot Q Subchannel 2 0 0 1 Subchannel 1 Fig 2 2 AQPSK modulation subchannel 2 with higher power level The power level of subchannel 2 relative to the power level of subchannel 1 is called Subchannel Power Imbalance Ratio SCPIR It is related to the angle a as follows SCPIR 20 log tan a dB where the value of a
133. w3 BB GSM HOQPSK FORMattiii is ie orci inet ee iia eee cer ER E Er ACEN 73 SOURce lt hw gt BB GSM ISLength SOURCeshw BB GSM MOBDDE iet irt hd eae pa RE Qi EE etu Ades nance a adie oS ERR E RETIA SOURceshw 5 BB GSM N 16Qam FORMAat icto tenen ennt rrr etn eh Rh nete Rr EE Reus 74 SOURceshw BB GSM N32Qlam FORMAt iterat etate trono tht Eva Fete tta NEA a n ERR gn 74 SOURce hw BB GSM PRAMp BBONIy STATe eeeeseeeeesees esee eese enne nennen nennen enne nnn 93 SOURG slWw BB GSM PRAMD EDELAy rte rcr er eret e e e ED Rc e are E E Ee ead 93 SOURceshiw 5 BB GSMIPRAMDp RDELAy i iiir citt ee er gb ans ed eee 94 SOURcCeshw BB GSM PRAMD SEMAPG dii oett eas trei a UR EE MEN ERREUR Rue e 94 SOURcesliw BB GSM PRAMD TIME t ucc rere ier ER E DE e UH DARE ER baie dias 95 SOURce lt hw gt BB GSM SETTing DELete SOURCeshw BB GSM SET Ting LOAD toten Ee send bete eati cai etes eee itte ced eed 64 SOURceshw BB GSM SETTing S TOR itn niei crt tre core eem ib onera ERE EE ME 64 SOURceshw BB GSM SET Tirig STOR FAST ettet ee reete ete tht e tee n tenter eoa 64 SOURCeshw BB GSM SMODBa iret eege EEGEN A ENEE 64 ESOURCeshW gt BBiGSM E SOURce lt hw gt BB GSM SRATe MODE ESOURCE lt hw gt E ER ME SOURce hw BB GSM TRIGger ARM EXEQOute essen eene 82 SOURcCeshw5 rBB GSM TRIGger EXEGCUte eite tcov h

K240/-K41/-K241 GSM/EDGE

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