US 12,238,575 B2
Technique for configuring preamble in wireless communication system
Dongguk Lim, Seoul (KR); Jinsoo Choi, Seoul (KR); Eunsung Park, Seoul (KR); and Jinmin Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/753,366
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 3, 2020, PCT No. PCT/KR2020/011828
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/045518, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 10-2019-0109145 (KR), filed on Sep. 3, 2019; application No. 10-2019-0109711 (KR), filed on Sep. 4, 2019; and application No. 10-2019-0111766 (KR), filed on Sep. 9, 2019.
Prior Publication US 2022/0330087 A1, Oct. 13, 2022
Int. Cl. H04L 27/20 (2006.01); H04L 1/00 (2006.01); H04W 28/06 (2009.01); H04W 84/12 (2009.01)
CPC H04W 28/06 (2013.01) [H04L 1/0061 (2013.01); H04L 27/20 (2013.01); H04W 84/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method performed by a transmitting station (STA) in a Wireless Local Area Network (WLAN) system, the method comprising:
generating an Extremely High Throughput (EHT) Physical Protocol Data Unit (PPDU) including a legacy signal (L-SIG) field, a repeated L-SIG (RL-SIG) field, a control signal field being contiguous to the RL-SIG field, an EHT Short Training Field (STF), and an EHT Long Training Field (LTF) which is contiguous to the EHT STF,
wherein the L-SIG field includes a length field, the length field is set to a value satisfying a condition that a remainder is zero when the length field is divided by three, and the remainder differentiates the EHT PPDU from a High Efficiency (HE) PPDU,
wherein the RL-SIG field is a repeat of the L-SIG field and is contiguous to the L-SIG field,
wherein the RL-SIG field and the control signal field are configured based on Binary Phase-Shift Keying (BPSK),
wherein the control signal field includes first information related to a physical version of the EHT PPDU, second information related to a bandwidth of the EHT PPDU, third information related to a basic service set (BSS) color, fourth information related to a transmission opportunity (TXOP), and fifth information related to a PPDU type,
wherein the fifth information has a length of two bits, and a value of the fifth information indicates a single user (SU) transmission or a trigger-based (TB) PPDU, and
wherein the first information has a length of three bits and is set to zero for the EHT PPDU; and
transmitting the EHT PPDU.