Patent attributes
A station performs a random access (RA) communication by i) receiving a trigger frame, ii) determining, using information in one or more per-station information parts of the trigger frame, that one or more resource units (RUs) of a response transmission are allocated to RA, iii) selecting a selected RU from the one or more RUs allocated to RA, and iv) in response to receiving the trigger frame, performing the RA communication using the selected RU of the response transmission. In some cases, the station may transmit a data unit associated with an Access Category (AC) as part of the RA communication, receive an acknowledgement frame corresponding to the data unit, and in response to receiving the acknowledgement frame, resume a backoff counter countdown associated with the AC.