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LTE PRACH Measurement
R&S
®
CMW-KM5xx/-KS5xx
803
User Manual 1173.9628.02 ─ 16
For additional information concerning syntax elements and returned values refer to
Conventions and General Information
.
4.5.3.11
Magnitude Error Results (Traces)
The following commands return the magnitude error vs. subcarrier traces of the
PRACH measurement.
FETCh:LTE:MEAS<i>:PRACh:TRACe:MERRor:CURRent?
FETCh:LTE:MEAS<i>:PRACh:TRACe:MERRor:AVERage?
FETCh:LTE:MEAS<i>:PRACh:TRACe:MERRor:MAXimum?
READ:LTE:MEAS<i>:PRACh:TRACe:MERRor:CURRent?
READ:LTE:MEAS<i>:PRACh:TRACe:MERRor:AVERage?
READ:LTE:MEAS<i>:PRACh:TRACe:MERRor:MAXimum?
Return the values of the magnitude error traces. Each value is averaged over the sam-
ples in one preamble subcarrier. The results of the current, average and maximum
traces can be retrieved.
See also
chapter 4.2.9.2, "Detailed Views: EVM, Magnitude Error, Phase Error"
Return values:
<Reliability>
<Results>
The number of results depends on the preamble format.
Format 0 to 3: 839 EVM values, format 4: 139 EVM values
Range:
0 % to 100 %
Default unit: %
Example:
See
Performing Single-Shot Measurements
Usage:
Query only
Firmware/Software:
V2.0.10
For additional information concerning syntax elements and returned values refer to
Conventions and General Information
.
4.5.3.12
Phase Error Results (Traces)
The following commands return the phase error vs. subcarrier traces of the PRACH
measurement.
FETCh:LTE:MEAS<i>:PRACh:TRACe:PERRor:CURRent?
FETCh:LTE:MEAS<i>:PRACh:TRACe:PERRor:AVERage?
FETCh:LTE:MEAS<i>:PRACh:TRACe:PERRor:MAXimum?
READ:LTE:MEAS<i>:PRACh:TRACe:PERRor:CURRent?
READ:LTE:MEAS<i>:PRACh:TRACe:PERRor:AVERage?
READ:LTE:MEAS<i>:PRACh:TRACe:PERRor:MAXimum?
Return the values of the phase error traces. Each value is averaged over the samples
in one preamble subcarrier. The results of the current, average and maximum traces
can be retrieved.
Command Reference
深圳德标仪器
135-1095-0799