Power Save Operation and AP Behavior for Coex Unavailability

Abstract

Methods and apparatus are contemplated for transmission of data in a wireless local area network. In embodiments, a first wireless device (AP) is configured to transmit data packets to a second wireless device (STA), and transmits an initial control frame (ICF) to the STA indicating a transmission opportunity time period (TXOP) for data transfer from the first wireless device to the second wireless device. In response to the ICF, the second wireless device returns an initial control response (ICR) indicating an unavailability time period, e.g., Coex unavailability. Alternatively, the STA may send to the AP without prompt, an unsolicited unavailability announcement (UUA) containing unavailability information of the STA. Responsive to receipt of the ICR or UUA, the AP may modify a transmission plan, e.g., shorten or cancel the TXOP, or transmit a portion of the data to another STA, etc. Power settings may be determined based on the unavailability time period.

Dependencies are inferred from the claim text.