Operating Manual Vol 1 - ES Documentation

Enhanced Functions For Digital Standard 3GPP W-CDMA (FDD)SMIQ2.15.3.1.5 Further Setting of Enhanced Channels Menu----------------------Common Enhanced Channels Settings-----------------------------------------------------SEQUENCE LENGTHP-CCPCH/BCHWith Enhanced P-CCPCH/BCH State On in the downlink, the sequence lengthof the P-CCPCH/BCH is displayed. The length is always 4096 frames andcannot be edited.IEC/IEEE-bus command (query) :SOUR:W3GP:BST:ENH:PCCP:SLEN?SEQUENCE LENGTH Sets the sequence length in radio frames used to calculate the 3 GPP W-CDMA enhanced channel signal component on DGEN.Depending on the currently available free DGEN list memory, the currentlyavailable maximum frame sequence length is displayed in the middle of themenu parameter line.Note : After triggering a new calculation, the 3GPP W-CDMA signalcomponent calculated on DGEN is stored in a hidden data list. Themaximum number of radio frames depends on the currentlyavailable free DGEN list memory for the hidden data list max. 80Mbit).In addition to the free DGEN list memory the maximum sequence lengthcrucially depends on the ENHANCED P-CCPCH/BCH state and the number ofDPCHs:ENHANCED P-CCPCH/BCH STATE = OFF1 DPCH: 1022 frames2 DPCHs: 511 frames3 DPCHs: 341 frames4 DPCHs: 255 framesENCHANCED P-CCPCH/BCH STATE = ONSYMBOL RATE DPCH ≤30 ksps: 2044 framesSYMBOL RATE DPCH >30 ksps: 500 framesIEC/IEEE-bus command :SOUR:W3GP:BST:ENH:SLEN 123SYMBOL RATE DPCH Sets symbol rate of all downlink enhanced channels in ksps.If the CHANNEL CODING STATE switch is set to ON, there is a close relationbetween the settings CODING TYPE and SYMBOL RATE DPCH:MEASURE_12.2KBPS : SYMBOL RATE DPCH = 30 kspsMEASURE_64KBPS : SYMBOL RATE DPCH = 120 kspsMEASURE_144KBPS : SYMBOL RATE DPCH = 240 kspsMEASURE_384KBPS : SYMBOL RATE DPCH = 480 kspsAMR_CODEC :SYMBOL RATE DPCH = 30 ksps;When a parameter is changed (CODING TYPE or SYMBOL RATE DPCH) theassociated parameter is adapted automatically.In the higher BS1 menu the SYMBOL RATE settings of all activated enhancedchannels are automatically updated in the channel table.IEC/IEEE-bus command:SOUR:W3GP:BST:ENH:SRAT D30K1125.5555.03 2.248 E-9