Operating Manual Vol 1 - ES Documentation

SMIQDigital Standard 3GPP W-CDMA (FDD)TPC PATTERN/DLISTREAD OUT MODETPC bits are used for W-CDMA to inform the called station if the transmitpower is being increased or decreased. The parameter TPC Pattern Read OutMode is used to define how this bit pattern is to be used. The following modesare distinguished:• Continuous: A bit is taken for each slot from the up to 24-bit long bit patternfor the Transmitter Power Control field of the slots and entered in the bitstream several times (depending on the symbol rate). The specified bitpattern is used cyclically.• Single + All 0: A bit is taken for each slot from the up to 24-bit long bitpattern for the Transmitter Power Control field of the slots and entered thebit stream several times (depending on the symbol rate). The specified bitpattern is used once, then the TPC sequence is continued with 0 bits.• Single + All 1: A bit is taken for each slot from the max. 24-bit long bitpattern for the Transmitter Power Control field of the slots and entered inthe bit stream several times (depending on the symbol rate. The specifiedbit pattern is used once, then the TPC sequence is continued with 1 bits.• Single + alt. 01: A bit is taken for each slot from the up to 24-bit long bitpattern for the Transmitter Power Control field of the slots and entered thebit stream several times (depending on the symbol rate. The specified bitpattern is used once, then the TPC sequence is continued with 0 and 1 bitsalternately (multiplied depending on the symbol rate, e.g. 00001111).• Single + alt. 10: A bit is taken for each slot from the up to 24-bit long bitpattern for the Transmitter Power Control field of the slots and entered inthe bit stream several times (depending on the symbol rate. The specifiedbit pattern is used once, then the TPC sequence is continued with 1 and 0bits alternately (multiplied depending on the symbol rate, e.g. 11110000).The different modes can be used for example to set a BS to a specific outputpower (e.g. with pattern 11111) and then let it oscillate about this power(using Single + alt. 01 or Single + alt. 10). Thus power measurements on achannel of the BS can be performed (with a quasi-constant power). Inconjunction with the option (Mis-)Use TPC for output power control (seebelow) the TPC Read Out Mode can also be used for generation of variousoutput power profiles.If option SMIQB48 is installed and if a data list is used as TPC data source,the READ OUT MODE is also valid.IEC/IEEE-bus command :SOUR:W3GP:MST2:TPC:READ CONT1125.5555.03 2.201E-9