US 12,335,780 B2
Apparatus and methods for EHT multi-band A-MSDU operation
Yongho Seok, San Jose, CA (US); Kai Ying Lu, San Jose, CA (US); James Chih-Shi Yee, San Jose, CA (US); and Gabor Bajko, San Jose, CA (US)
Assigned to MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed on Nov. 10, 2020, as Appl. No. 17/094,348.
Claims priority of provisional application 62/934,038, filed on Nov. 12, 2019.
Prior Publication US 2021/0144589 A1, May 13, 2021
Int. Cl. H04W 28/082 (2023.01); H04W 28/06 (2009.01); H04W 80/02 (2009.01); H04W 84/12 (2009.01)
CPC H04W 28/082 (2023.05) [H04W 28/065 (2013.01); H04W 80/02 (2013.01); H04W 84/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of transmitting data by a transmitting device in a multi- link operation over a wireless network, the method comprising:
determining that a receiving device is capable of multi-link fragmentation, wherein the receiving device and the transmitting device are operable to communicate over a first wireless link and a second wireless link;
determining a first media access control (MAC) protocol data unit (MPDU) length capability of the receiving device for the first wireless link and a second MPDU length capability of the receiving device for the second wireless link;
fragmenting an A-MSDU into a first frame and a second frame according to the first and second MPDU length capabilities, respectively, wherein the first frame comprises a first fragmented frame and the second frame comprises a second fragmented frame;
generating a virtual MAC address for transmitting the first fragmented frame and the second fragmented frame for receipt by a logical link control (LLC) sublayer of the receiving device; and
transmitting the first frame over the first wireless link and transmitting the second frame over the second wireless link to the receiving device in the multi-link operation using the virtual MAC address, wherein the first frame comprises a first traffic identifier (TID), and wherein the transmitting the first frame over the first wireless link is performed with transmitting the second frame over the second wireless link; and
scheduling a third frame for transmission over the first wireless link, wherein the third frame comprises the TID of the first frame if the first wireless link is without retry attempts, and wherein the third frame comprises a TID different than the TID of the first wireless link if the first wireless link has retry attempts remaining.