NB-IoT Multi-Evaluation Measurement
R&S
®
CMW-KM300/-KS300
253
User Manual 1178.5689.02 ─ 06
●
Use
FETCh:NIOT:MEAS:MEValuation:LIST:...?
commands to retrieve the
results.
Speeding up list mode measurements
List mode tests are often used in production lines. The same tests are repeated for dif-
ferent UEs. Optimizing the test duration is important.
Consider the following rules to minimize the test duration:
●
Reduce the number and size of the segments and the statistical length as far as
possible for your use case.
●
Enable only the results that you need / disable the other result calculations.
●
To reset the system repeatedly, use partial reset commands instead of the global
reset command
*RST
.
Example: Use
SYSTem:RESet 'NB-IoT Meas1'
to reset the NB-IoT measure-
ment instance 1.
3.4.2.1
Specifying Global Measurement Settings
// *****************************************************************************
// Reset
// *****************************************************************************
SYSTem:RESet 'NB-IoT Meas1'; *OPC?
*CLS; *OPC?
// *****************************************************************************
// Define signal routing and external attenuation.
// *****************************************************************************
ROUTe:NIOT:MEAS:SCENario:SALone RF1C, RX1
CONFigure:NIOT:MEAS:RFSettings:EATTenuation 2
// *****************************************************************************
// Specify required UE signal settings not configurable per segment:
// subcarrier spacing, physical cell ID, delta sequence shift value.
// *****************************************************************************
CONFigure:NIOT:MEAS:MEValuation:SCSPacing S15K
CONFigure:NIOT:MEAS:MEValuation:PLCid 10
CONFigure:NIOT:MEAS:MEValuation:DSS 5
3.4.2.2
Specifying List Mode Settings
// *****************************************************************************
// Segment 1, NPUSCH: format F1, 1 RU, 1 repetition, 1 SC - means 16 slots
// segment length 18 slots, power 1 dBm, frequency 1.95 GHz
// *****************************************************************************
CONF:NIOT:MEAS:MEV:LIST:SEGM1:SET 18,1,OB1,1.95E+9,F1,1,0,NRU01,NR1,ON,0
// *****************************************************************************
// Segment 2, NPUSCH: format F1, 1 RU, 2 repetitions, 12 SC - means 4 slots
Programming
深圳德标仪器
135-1095-0799
