US 11,863,978 B2
Fast basic service set transition for multi-link operation
Sai Yiu Duncan Ho, San Diego, CA (US); George Cherian, San Diego, CA (US); Abhishek Pramod Patil, San Diego, CA (US); Alfred Asterjadhi, San Diego, CA (US); Yanjun Sun, San Diego, CA (US); and Jouni Kalevi Malinen, Tuusula (FI)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 28, 2021, as Appl. No. 17/360,060.
Claims priority of provisional application 63/052,802, filed on Jul. 16, 2020.
Prior Publication US 2022/0022033 A1, Jan. 20, 2022
Int. Cl. H04W 12/06 (2021.01); H04W 12/08 (2021.01); H04W 12/0431 (2021.01); H04W 12/037 (2021.01); H04W 8/28 (2009.01); H04W 80/02 (2009.01); H04W 84/02 (2009.01)
CPC H04W 12/0431 (2021.01) [H04W 8/28 (2013.01); H04W 12/037 (2021.01); H04W 80/02 (2013.01); H04W 84/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for wireless communication by a non-access point (non-AP) multi-link device (MLD), the method comprising:
transmitting, by a first station of a plurality of stations of the non-AP MLD to a first AP MLD, an initial association request to initiate an association between the non-AP MLD and the first AP MLD;
receiving, from the first AP MLD, a first response to the initial association request from the first AP MLD indicating establishment of a secret key shared by the non-AP MLD and the first AP MLD;
generating a first pairwise master key (PMK) based on the secret key;
transmitting, by a second station of the plurality of stations of the non-AP MLD to a first target AP, a first reassociation request based on the first response to the initial association request;
generating a second PMK based on the first PMK, a medium access control service access point (MAC-SAP) address that uniquely identifies the non-AP MLD in a wireless local area network (WLAN), and a medium access control (MAC) address of the first target AP;
receiving, from the first target AP, a second response to the first reassociation request, the second response to the first reassociation request being based on the second PMK; and
associating with the first target AP based on the second PMK responsive to the second response.