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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
69
User Manual 1173.9628.02 ─ 16
2.2.19.5
Detailed View: CQI Reporting
The main focus of the "CQI Reporting" view is on evaluation of the CQI index values
reported by the UE. This view is only available if CQI reporting is enabled in the signal-
ing application (see
For transmission mode 4 (closed loop spatial multiplexing), the UE reports CQI values
per stream. So all results are displayed per stream as in the following figure. For all
other transmission modes, only "Stream 1" results are available.
For carrier aggregation scenarios, the PCC results and the SCC results are presented
on different tabs. If you want to evaluate CQI reports for PCC and SCC, ensure that
the configured "CQI/PMI Config Index" of the carriers is compatible, see
Fig. 2-26: CQI Reporting view (two streams)
The bar graph shows how often the CQI indices 0 to 15 have been reported by the UE
since the measurement has been started. The table directly below the bar graph pro-
vides the index value and the height of the seven highest bars in the diagram.
The table at the bottom provides the following additional information:
●
Median CQI
: median of the CQI values reported by the UE
Add the bars of one stream from left to right. The median CQI value is the index
value where the sum reaches/crosses 50% of the total sum. This definition of the
median value is specified in 3GPP TS 36.521, section 9.
General Description
深圳德标仪器
135-1095-0799