An access point (AP) receives from a station a first individually addressed frame comprising a request to establish a restricted target wake time (R-TWT) agreement and indicating a first R-TWT schedule corresponding to the R-TWT agreement. The AP transmits to the station a second individually addressed frame indicating acceptance of the request to establish the R-TWT agreement. The AP transmits a beacon frame indicating the first R-TWT schedule based on having an associated station (STA) with a capability of supporting R-TWT operation and determines whether to defer transmission of a first frame based on: a required transmission time of the first frame; and a start time of a first R-TWT service period (SP) of the first R-TWT schedule.