3GPP 38.300 v19.3.0 — the document's own text
16.13.4 RRM measurement relaxations
RRM measurement relaxation is enabled and disabled by the network. In RRC_IDLE and RRC_INACTIVE an (e)RedCap UE is allowed to relax neighbour cell RRM measurements when the stationary criterion is met or when both stationary criterion and not-at-cell-edge criterion are met. Network may configure stationary criterion for an (e)RedCap UE in RRC_CONNECTED and the UE reports its RRM measurement relaxation fulfilment status using UE Assistance Information when the stationarity criterion is met or no longer met.