US 12,336,031 B2
Method for performing multi-link communication in wireless communication system
Namyeong Kim, Seoul (KR); Jeongki Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); Suhwook Kim, Seoul (KR); Sungjin Park, Seoul (KR); Taewon Song, Seoul (KR); and Insun Jang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/781,698
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 2, 2020, PCT No. PCT/KR2020/017459
§ 371(c)(1), (2) Date Jun. 1, 2022,
PCT Pub. No. WO2021/112557, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10-2019-0158502 (KR), filed on Dec. 2, 2019; application No. 10-2019-0158527 (KR), filed on Dec. 2, 2019; and application No. 10-2020-0057852 (KR), filed on May 14, 2020.
Prior Publication US 2023/0007535 A1, Jan. 5, 2023
Int. Cl. H04W 28/08 (2023.01); H04W 76/15 (2018.01); H04W 84/12 (2009.01)
CPC H04W 76/15 (2018.02) [H04W 84/12 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method comprising:
transmitting, by an access point (AP) to a station (STA), a first management frame related to a power save mode,
wherein the first management frame includes information related to a link identifier (ID) of a first link supported by the AP;
receiving, by the AP from the STA, a second management frame based on the first management frame;
determining, by the AP, whether to enter the power save mode for the first link based on the second management frame, wherein the AP does not enter the power save mode based on receiving the second management frame in response to the first management frame; and
transmitting, by the AP, a physical protocol data unit (PPDU) through the first link to the STA,
wherein the PPDU includes a legacy signal (L-SIG) field, a repeated L-SIG (RL-SIG) field being contiguous to the L-SIG field, and a first signal (SIG) field being contiguous to the RL-SIG field,
wherein the L-SIG field includes a length field, and a value of the length field is set to satisfy a condition that a remainder is zero (0) when the value of the length field is divided by three (3), and
wherein the first SIG field includes first information related to a PPDU type, second information related to an identifier of a basic service set (BSS), third information indicating duration information related to a transmission opportunity (TXOP), fourth information related to whether the PPDU is sent in uplink (UL) or in downlink (DL), fifth information related to a bandwidth, and sixth information having a length of 3 bits and indicating a physical (PHY) version of the PPDU.