Patent attributes
A method by an access point in a wireless local area network to solicit an immediate acknowledgement from a station in the wireless local area network. The method includes generating and transmitting a downlink multi-user physical layer protocol data unit that includes a frame for which the access point solicits an immediate response from the station in an uplink multi-user transmission, wherein an ACK Policy field of the frame is set to a binary value of ‘01’ to indicate that the station is to provide an immediate acknowledgement for the frame to the access point if the station receives trigger information included in the downlink multi-user physical layer protocol data unit and the station is not to provide an immediate acknowledgement for the frame if the station does not receive trigger information included in the downlink multi-user physical layer protocol data unit.
