Study on network energy savings for NR
The present document captures the findings from the study item of "Study on network energy savings for NR" [2].
The study includes how to model network energy consumption especially for a base station, and evaluations of network energy saving gains as well as impact to network and user performance, by reusing existing KPI whenever applicable or new KPIs as needed. The study is also to identify techniques on gNB and UE side that can improve the network energy savings in various domains, potentially with UE feedback/assistance information and information exchange over network interfaces.
The study prioritizes idle/empty and low/medium load scenarios, allow different loads among carriers and neighbor cells, allows legacy UEs to be able to continue accessing a network implementing Rel-18 network energy savings techniques, with the possible exception of techniques developed specifically for greenfield deployments. The study does not include aspects related to IAB.