US 11,723,094 B2
Method and device for transmitting signal through multi-link in wireless LAN system
Insun Jang, Seoul (KR); Suhwook Kim, Seoul (KR); Jeongki Kim, Seoul (KR); Kiseon Ryu, Seoul (KR); Sungjin Park, Seoul (KR); Taewon Song, Seoul (KR); and Jinsoo Choi, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/266,989
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Aug. 8, 2019, PCT No. PCT/KR2019/009991
§ 371(c)(1), (2) Date Feb. 8, 2021,
PCT Pub. No. WO2020/032633, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 10-2018-0094063 (KR), filed on Aug. 10, 2018; and application No. 10-2018-0106742 (KR), filed on Sep. 6, 2018.
Prior Publication US 2021/0315036 A1, Oct. 7, 2021
Int. Cl. H04W 76/15 (2018.01); H04L 1/1867 (2023.01); H04W 74/08 (2009.01); H04W 84/12 (2009.01)
CPC H04W 76/15 (2018.02) [H04L 1/1896 (2013.01); H04W 74/0816 (2013.01); H04W 84/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, comprising:
transmitting, by a station (STA), a Probe Request frame comprising capability information,
wherein the capability information comprises identification information of a plurality of links supported by the STA and 6 GHz capability information related to whether the STA supports a 6 GHz link;
obtaining, by the STA, a transmission opportunity (TXOP) for a pre-defined link which is different from the 6 GHz link;
transmitting, by the STA, a physical protocol data unit (PPDU) through the pre-defined link;
receiving, by the STA, an ACKnowledgement (ACK) frame for the PPDU through the pre-defined link;
determining, by the STA, whether a backoff counter (BC) value of the 6 GHz link reaches zero after receiving the ACK frame;
determining, by the STA, whether the 6 GHz link is maintained to be idle for a pre-defined time period after the BC value of the 6 GHz link reaches zero;
aggregating, by the STA, the pre-defined link and the 6 GHz link based on the determination; and
transmitting, by the STA, a packet through the aggregated links.