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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
195
User Manual 1173.9628.02 ─ 16
chapter 2.2.19.8, "Common View Elements"
Remote command:
Error Ratio Calculation
Selects the formula to be used for calculation of the BLER from the number of ACK,
NACK and DTX. PDSCH decoding errors result in NACK while PDCCH decoding
errors result in DTX.
3GPP TS 36.521 specifies which formula must be used for a certain performance test
or CQI test.
The following formulae are available:
●
BLER = (NACK + DTX) / (ACK + NACK + DTX)
●
BLER = DTX / (ACK + NACK + DTX)
●
BLER = NACK / (ACK + NACK + DTX)
●
BLER = NACK / (ACK + NACK)
Remote command:
Confidence BLER
The following parameters configure parameters only relevant for confidence BLER
measurements.
Over All Stop Decision ← Confidence BLER
This setting configures the stop decision and the overall confidence BLER result calcu-
lation for measurements with carrier aggregation.
Depending on the selection, the measurement stops when the following condition is
fulfilled:
●
"PCC only": A result is available for the PCC.
●
"SCC1 only": A result is available for the first SCC.
●
"All Carrier, stop on 1st fail":
–
Results are available for all component carriers, OR
–
At least one result equals "Fail" or "Early Fail".
●
"All Carrier, wait for all CCs": Results are available for all component carriers.
Depending on the selection, the overall confidence BLER result is calculated as fol-
lows:
●
"PCC only": Overall result = PCC result
●
"SCC1 only": Overall result = SCC1 result
●
"All Carrier, ...":
–
If at least one result = "Early Fail": Overall result = "Early Fail"
–
Else, if at least one result = "Fail": Overall result = "Fail"
–
Else, if all results = "Early Pass": Overall result = "Early Pass"
–
Else: Overall result = "Pass"
Remote command:
GUI Reference
深圳德标仪器
135-1095-0799