US 11,991,629 B2
Apparatus and method for TWT operation for multi-link devices
Rubayet Shafin, Allen, TX (US); and Boon Loong Ng, Plano, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Feb. 21, 2022, as Appl. No. 17/676,645.
Claims priority of provisional application 63/296,742, filed on Jan. 5, 2022.
Claims priority of provisional application 63/230,571, filed on Aug. 6, 2021.
Claims priority of provisional application 63/177,244, filed on Apr. 20, 2021.
Claims priority of provisional application 63/171,389, filed on Apr. 6, 2021.
Claims priority of provisional application 63/153,774, filed on Feb. 25, 2021.
Prior Publication US 2022/0272630 A1, Aug. 25, 2022
Int. Cl. H04W 52/02 (2009.01); H04W 76/15 (2018.01)
CPC H04W 52/0216 (2013.01) [H04W 52/0219 (2013.01); H04W 76/15 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A non-access point (AP) multi-link device (MLD) comprising:
a plurality of stations (STAs) that each comprise a transceiver configured to transmit and receive signals; and
a processor operably coupled to the transceivers, the processor configured to:
perform a multi-link (ML) setup operation with an AP MLD to set up links between the STAs affiliated with the non-AP MLD and corresponding APs affiliated with the AP MLD;
negotiate a broadcast target wake time (TWT) agreement over a first link between a first STA and a first AP of the AP MLD, wherein the broadcast TWT agreement is for a shared TWT session including a group of the links; and
after the broadcast TWT agreement is successfully negotiated, apply the broadcast TWT agreement to the group of links.