eNB supports CQI DTX detection for periodic CQI reports on PUCCH and PUSCH.
If MAC layer receives nCqiDtx consecutive reports from UL PHY, theMAC declares CqiRLF_ON. This can be seen in BTS log and Emil
If the MAC has set CqiRLF_ON for a specific UE and nCqiRec consecutive CQI reports are again detected successfully for that UE… the MAC sets CqiRLF_OFF
The parameters nCqiDtx and nCqiRec are in the vendor-specificparameter file
For both PUSCH and PUCCH the periodic CQI is encoded using a ReedMuller block code and comes along without any CRC. Hence, the UL PHY indicates a DTX detection for periodic CQI reports on PUCCH or PUSCHwhenever a report is configured but no reliable transmission from the UEcould be detected. So the output of the detector shall be either thedetected CQI report or a DTX indication.
NOTE: CQI_RLF detection does not apply to aperiodic CQI report on