Patent ID: 11936580
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A non-access point station (STA), comprising:
a radio; and
a processor operably coupled to the radio and configured to cause the STA to:
receive, from an access point device, a downlink orthogonal frequency division multiple access (OFDMA) frame;
determine, based on the downlink OFDMA frame, a dynamic uplink bandwidth allocation for the STA;
determine, based on whether the downlink OFDMA frame was successfully received, acknowledgement information responsive to the downlink OFDMA frame;
delay for a short interframe space (SIFS); and
after the SIFS, transmit, to the access point device and using the dynamic uplink bandwidth allocation for the STA, an uplink transmission comprising the acknowledgement information responsive to the downlink OFDMA frame, wherein the uplink transmission is synchronized with a second uplink transmission comprising second acknowledgement information responsive to the downlink OFDMA frame transmitted by a second STA.