US 12,407,462 B2
Uplink OFDMA processing in WLANs
Joonsuk Kim, Saratoga, CA (US); and Yuchul Kim, Santa Clara, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Feb. 6, 2024, as Appl. No. 18/433,612.
Application 18/433,612 is a continuation of application No. 17/566,005, filed on Dec. 30, 2021, granted, now 11,936,580.
Application 17/566,005 is a continuation of application No. 16/820,408, filed on Mar. 16, 2020, granted, now 11,258,561, issued on Feb. 22, 2022.
Application 16/820,408 is a continuation of application No. 16/008,880, filed on Jun. 14, 2018, granted, now 10,601,562, issued on Mar. 24, 2020.
Application 16/008,880 is a continuation of application No. 14/989,945, filed on Jan. 7, 2016, granted, now 10,027,455, issued on Jul. 17, 2018.
Claims priority of provisional application 62/101,913, filed on Jan. 9, 2015.
Prior Publication US 2024/0178960 A1, May 30, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 1/12 (2006.01); H04L 1/1829 (2023.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01); H04L 25/02 (2006.01); H04W 84/12 (2009.01)
CPC H04L 5/0048 (2013.01) [H04L 1/12 (2013.01); H04L 1/1854 (2013.01); H04L 27/2656 (2013.01); H04L 27/2657 (2013.01); H04L 27/2675 (2013.01); H04W 56/002 (2013.01); H04L 5/0023 (2013.01); H04L 25/0202 (2013.01); H04W 84/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A processor comprising memory configured to cause the processor to perform operations comprising:
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 a non-access point station (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.