Operating Manual Vol 1 - ES Documentation

SMIQDigital Standard 3GPP W-CDMA (FDD)(MULTI CHANNELEDIT...)PILOT LENGTHCHANNELIZATIONCODE / STEPPOWER / dBPOWER STEP / dBDATATIMING OFFSET /TIMING OFFSET STEPTPCLength of the pilot field in the slot structure of achannel. The value range of this parameter dependson the symbol rate (2 bits to max. 16 bits). Toachieve a constant length of the slot the data fieldsare lengthened or shortened depending on the pilotlength as defined in the standard.IEC/IEEE-bus :SOUR:W3GP:MCH:PLEN BIT2Channelization code for the first channel and stepwidth for all other channels. The value ranges dependon the symbol rate.IEC/IEEE-bus commands:SOUR:W3GP:MCH:CCOD 4:SOUR:W3GP:MCH:CCOD:STEP 1Channel power for the first channel (value range-60 dB to 0 dB) and stepwidth for all other channels(value range -60 dB to 60 dB).IEC/IEEE-bus commands:SOUR:W3GP:MCH:POW –20:SOUR:W3GP:MCH:POW:STEP 1Selection of data pattern for the DPCHs. For otherpatterns see channel table.IEC/IEEE bus commands:SOUR:W3GP:MCH:DATA PN9:SOUR:W3GP:MCH:DATA:PATT #HFFFF, 16A value > 0 causes the source symbols to be shiftedprior to spreading. An offset of 1 for instance isrecommended to obtain a lower crest factor.The absolute starting time of frames (slot 0) is shiftedrelative to the start of the scrambling code sequenceby T Offset * 256 chips. This means that the resolutionof the timing offset is always 256 chips, irrespectiveof the symbol rate. The step width of the timing offsetbetween two adjacent channels is defined with STEP.IEC/IEEE bus commands:SOUR:W3GP:MCH:TIM:OFFS 0:SOUR:W3GP:MCH:TIM:STEP 3Data source for the TPC field.IEC/IEEE-bus :SOUR:W3GP:MCH:TPC ZEROMULTI CODE STATE ON The channels should be simulated withmulticode.IEC/IEEE bus :SOUR:W3GP:MCH:MCOD ONOFF The channels should be simulated withoutmulticode.IEC/IEEE bus :SOUR:W3GP:MCH:MCOD OFFSTATE ON The channels are active.IEC/IEEE bus :SOUR:W3GP:MCH:STAT ONOFF The channels are not active.IEC/IEEE bus :SOUR:W3GP:MCH:STAT OFFEXECUTEConfiguration of DPCHs according to the set parameters.IEC/IEEE bus :SOUR:W3GP:BST2:MCH:EXEC1125.5555.03 2.209E-9