The power saving schemes with UE adaptation to the number of MIMO layers or number of Tx/Rx antenna (panels) provides up to 3%-30% power saving gain for the dynamic antenna adaptation and 6%- 30% for the semi-static antenna adaptation with some impact to the system performance, such as 4% latency increase for dynamic antenna adaptation, when reduced antenna operation is used mainly during periods of low scheduling activity and additional network resources are used for the compensation of the loss of multi-antenna processing gain. It was shown by one source that there is corresponding 10%-58% UPT degradation for the RRC configured antenna reduction without adaptation for FTP traffic. It is noted that with a set of simulation assumptions (such as traffic model and SCS) not aligned with the agreed ones for evaluation, it was observed by one source that the negative power saving gain and latency up to 760 % over Rel-15 4Rx antenna for the RRC configured antenna reduction without adaptation for FTP traffic was observed. It was observed by one source that the resulting additional overhead in terms of DL resource usage for the dynamic antenna adaptation is up to 2%.