LTE PRACH Measurement
R&S
®
CMW-KM5xx/-KS5xx
805
User Manual 1173.9628.02 ─ 16
FETCh:LTE:MEAS<i>:PRACh:TRACe:PVPReamble?
READ:LTE:MEAS<i>:PRACh:TRACe:PVPReamble?
Return the values of the power vs. preamble traces.
See also
chapter 4.2.9.3, "Detailed Views: EVM vs Preamble, Power vs Preamble"
Return values:
<Reliability>
<Results>
16 power values, for preamble 1 to 16 (NCAP for not measured
preambles)
Range:
-100 dBm to 55 dBm
Default unit: dBm
Example:
See
Performing Single-Shot Measurements
Usage:
Query only
Firmware/Software:
V2.1.20
For additional information concerning syntax elements and returned values refer to
Conventions and General Information
.
4.5.3.15
I/Q Constellation Results (Traces)
The following command returns the results in the I/Q constellation diagram.
FETCh:LTE:MEAS<i>:PRACh:TRACe:IQ?
Returns the results in the I/Q constellation diagram.
See also
chapter 4.2.9.4, "Detailed Views: I/Q Constellation Diagram"
Return values:
<Reliability>
<I_Phase_1>
<Q_Phase_1> ...
<I_Phase_139/839>
<Q_Phase_139/839>
Normalized I and Q amplitudes, one value pair per modulation
symbol.
For preamble format 4 there are 139 symbols.
For preamble format 0 to 3 there are 839 symbols.
Range:
-2 to 2
Example:
See
Performing Single-Shot Measurements
Usage:
Query only
Firmware/Software:
V2.0.10
Manual operation:
See
For additional information concerning syntax elements and returned values refer to
Conventions and General Information
.
Command Reference
深圳德标仪器
135-1095-0799