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GSM Signalling Measurements
CMU-K20/-K21/-K22/-K23/-K24
1115.6088.12 7.6
E-3
!
Generate the BCCH signal and set up the call as shown in the previous section. This means that
the mobile operates on the GSM900 band while the signalling procedures are carried out.
!
As soon as the call is established
RXQuality
and other measurements can be performed in the
GSM900 band. Instead initiate a dual-band handover to GSM1800:
FPRINT .............................................................................
FPRINT DUALBAND HANDOVER
FPRINT .............................................................................
CMUGSM: CONF:HAND:TARG 'GSM1800MsDualBand'
Define target band for handover
CMUGSM: PROC:SIGN:ACT HAND;*OPC?
Initiate handover procedure
REPORT OFF
WHILE CMUDCS: SENS:SIGN:STAT? <> CED
Wait until signalling state
Call Established
Dualband
is reached, then continue
REPORT ON
CMUDCS: SENS:SIGN:STAT?
Query signalling state (printout)
FPRINT .............................................................................
FPRINT CHANNEL 512, PCL 0
FPRINT .............................................................................
CMUDCS: INIT:RXQ:BER
Initiate single shot BER measurement
CMUDCS: INIT:POW:MPR
Initiate combined power/mod. measurement
WHILE CMUDCS: FETC:POW:MPR:STAT? !{} RDY
Wait until power/mod. measurement is in the
RDY
(ready) state, then go to next command
CMUDCS: FETC:POW:MPR?
Return scalar power/mod. results
FPRINT .............................................................................
FPRINT CALL RELEASE
FPRINT .............................................................................
CMUDCS: PROC:SIGN:ACT CREL;*OPC?
深圳德标仪器
135-1095-0799
Содержание CMU-K20
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