US 11,690,107 B2
Synchronous multi-link wireless TXOP procedure
Yongho Seok, San Jose, CA (US); Weisung Tsao, San Jose, CA (US); James Chih-Shi Yee, San Jose, CA (US); and Po-Yuen Cheng, San Jose, CA (US)
Assigned to MEDIATEK SINGAPORE PTE. LTD, Singapore (SG)
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed on Mar. 31, 2021, as Appl. No. 17/219,646.
Claims priority of provisional application 63/051,416, filed on Jul. 14, 2020.
Claims priority of provisional application 63/033,241, filed on Jun. 2, 2020.
Claims priority of provisional application 63/005,493, filed on Apr. 6, 2020.
Prior Publication US 2021/0315025 A1, Oct. 7, 2021
Int. Cl. H04W 74/08 (2009.01); H04L 1/00 (2006.01); H04W 56/00 (2009.01)
CPC H04W 74/0891 (2013.01) [H04L 1/0008 (2013.01); H04W 56/001 (2013.01); H04W 74/0816 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of transmitting data over a wireless network by a multi-link device (MLD), the method comprising:
performing independent enhanced distributed channel access (EDCA) channel access at the multi-link device on a first wireless link and on a second wireless link, wherein the multi-link device comprises:
a first wireless station (STA) associated with the first wireless link; and
a second wireless STA associated with the second wireless link;
determining that a back-off counter of the first wireless link has reached 0;
obtaining a TXOP on the first wireless link;
determining that the second wireless STA has not yet obtained a TXOP on the second wireless link;
delaying a frame exchange sequence over the first wireless link until a back-off counter of the second wireless link has reached 0;
determining that the back-off counter of the second wireless link has reached 0;
responsive to determining that the back-off counter of the second wireless link has reached 0, obtaining a TXOP on the second wireless link;
responsive to the obtaining a TXOP on the second wireless link, performing a multi-link operation at the multi-link device using the first wireless link and the second wireless link when physical carrier sensing and virtual carrier sensing indicate that the first wireless link is idle;
initiating the frame exchange sequence over the first wireless link during the TXOP on the first wireless link; and
initiating a frame exchange sequence over the second wireless link during the TXOP on the second wireless link.