US 12,170,962 B2
Method and apparatus for transmitting or receiving information relating to link in wireless LAN system
Saehee Bang, Seoul (KR); Jeongki Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); and Suhwook Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/615,305
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 24, 2020, PCT No. PCT/KR2020/005431
§ 371(c)(1), (2) Date Nov. 30, 2021,
PCT Pub. No. WO2020/246708, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 10-2019-0065546 (KR), filed on Jun. 3, 2019.
Prior Publication US 2022/0225236 A1, Jul. 14, 2022
Int. Cl. H04W 52/02 (2009.01); H04W 84/12 (2009.01)
CPC H04W 52/0248 (2013.01) [H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a first station (STA) in a wireless local area network (WLAN) system, the method comprising:
transmitting, to a second STA, a target wake time (TWT) setup request message,
wherein the TWT setup request message includes information related to whether the first STA supports TWT operation in a multi-link;
receiving, from the second STA, a TWT setup response message, in response to the TWT setup request message,
wherein the TWT setup response message includes information related to a link on which the TWT operation is performed by the first STA;
determining an operating state of the first STA based on the TWT setup response message;
transmitting, to the second STA, a control frame in response to the TWT setup response message;
after receiving, from the second STA, an ACK frame for the control frame, changing a first link included in the multi-link to a doze state; and
changing the first link from the doze state to an awake state based on the TWT setup response message.