Operating Manual Vol 1 - ES Documentation

Digital Standard 3GPP W-CDMA (FDD)SMIQPOWER [DB]DATATIMING OFFSETPILOT LENGTHTPCChannel power in dB; range –60 to 0.0 dB.The stated power is relative to the powers of other channels and initially does notrefer to the LEVEL power display. After activating ADJUST TOTAL POWER(top level of 3GPP W-CDMA menu) all power readings as referred to LEVEL.IEC/IEEE-bus command :SOUR:W3GP:BST3:CHAN3:POW –10.0Selects the data source for the DATA field.Selection of PN9, PN11, PN15, PN16, ALL0, ALL1 and PATTern.The PN generator function is explained in section 2.12.3, for example.If the PATTern data type is used, the pattern can be modified with a specialeditor. The length is limited to 24 digits.IEC/IEEE-bus command :SOUR:W3GP:BST3:CHAN3:DATA PN15IEC/IEEE-bus command :SOUR:W3GP:BST3:CHAN3:DATA:PATT #H1234,15A value greater than 0 causes the source symbols to be shifted prior tospreading. An offset of 1 for instance is recommended to obtain a low crestfactor.The absolute starting time of the frames (slot 0) is shifted relative to thebeginning of the scrambling code sequence by T Offset * 256 chips. This meansthat the resolution of the timing offset is always 256 chips, irrespective of thesymbol rate. The effect of the timing offset is explained in the following. Thevalue range of the timing offset is from 0 to 149. The parameter is accessiblefor DPCHs only.IEC/IEEE-bus command :SOUR:W3GP:BST3:CHAN3:TOFF 5Length of the pilot field in the slot structure of a channel. The value range ofthis parameter depends on the symbol rate. For DPCHs, the value range is2 bits to max. 16 bits, for S_CCPCH 0, 8 and 16 bits. To achieve a constantlength of the slot the data fields are lengthened or shortened depending on thepilot length as defined in the standard.IEC/IEEE-bus command :SOUR:W3GP:BST3:CHAN12:PLEN BIT2Selects 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:BST2:CHAN24:TPC PATT:SOUR:W3GP:BST2:CHAN24:TPC:PATT #H3F, 8MC ON This channel is to be simulated with multicode.IEC/IEEE-bus command :SOUR:W3GP:BST1:CHAN2:MCOD ONOFF This channel is to be simulated without multicode.IEC/IEEE-bus command :SOUR:W3GP:BST2:CHAN99:MCOD OFFSTATE ON The channel is activated. All parameters in this row are active.IEC/IEEE-bus command :SOUR:W3GP:BST1:CHAN1:STATE ONOFF The channel is not active. All parameters in this row are ignored.IEC/IEEE-bus command :SOUR:W3GP:BST2:CHAN9:STATE OFF1125.5555.03 2.198E-9