Is there any CQI type for feedback in IoT/NB-IoT?

Hello experts,
Does anyone knows if there’s any CQI or kind of “feedback” for the IoT/NB-IoT Ue?


Actually there is no CQI type of feedback (or measurement reports) defined for an NB-IoT UE.
However, the UE is configured to send periodic Demodulation Reference Signals (DMRS) which can be used by the eNB to perform channel estimation.

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