Operating Manual Vol 1 - ES Documentation

Digital Standard 3GPP W-CDMA (FDD)SMIQSCRAMBLING CODEMODESCRAMBLING CODETPCA distinction is made between Long and Short Scrambling Code. Thedifferences between the two codes can be found in section 2.14.1.1. The shortSC can only be selected in the mode DPCCH + DPDCH. For PRACH andPCPCH, the long SC is always used.IEC/IEEE-bus command :SOUR:W3GP:MST2:SCOD:MODE LONGFor test purposes, it is also possible to deactivate the scrambling code (OFF).IEC/IEEE-bus command :SOUR:W3GP:MST2:SCOD:MODE OFFThe scrambling code generator (previously called long code generator) is usedto scramble the chip sequence depending on the transmitter. For moreinformation of the structure of the generator and its initialization refer to section2.14.1.1. The value range of the scrambling code is 0 to FF FFFF.IEC/IEEE-bus command :SOUR:W3GP:MST1:SCOD #H1Selects the data source for the TPC field.ALL0 All 0s are continuously entered in the TPC field.IEC/IEEE-bus command :SOUR:W3GP:BST1:CHAN2:TPC ZEROALL1 All 1s are continuously entered in the TPC field.IEC/IEEE-bus command :SOUR:W3GP:BST2:CHAN129:TPC ONEPATT The TPC field is cyclically filled with a pattern that is up to 24 bits long.One bit is taken from this pattern per slot and, if necessary, reduplicated.A special pattern editor is displayed.IEC/IEEE-bus commands:SOUR:W3GP:MST1:TPC:DATA PATT:SOUR:W3GP:BST2:CHAN24:TPC:PATT #H3F, 8DLIST The TPC field is cyclically filled with a data list. Per slot, one bit istaken from the list and duplicated (only offered with option SMIQB48installed and the DPCCH is calculated as an enhanced channel.)IEC/IEEE-bus command:SOUR:W3GP:MST1:TPC:DATA DLIS "mylist"1125.5555.03 2.200E-9