US 12,231,275 B2
Technique for transmitting information related to packet extension field in wireless communication system
Dongguk Lim, Seoul (KR); Jinsoo Choi, Seoul (KR); Eunsung Park, Seoul (KR); and Insun Jang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/764,253
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 5, 2020, PCT No. PCT/KR2020/013440
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/066591, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 10-2019-0127234 (KR), filed on Oct. 14, 2019.
Prior Publication US 2022/0345343 A1, Oct. 27, 2022
Int. Cl. H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04W 4/40 (2018.01); H04W 84/12 (2009.01)
CPC H04L 27/2605 (2013.01) [H04L 5/0048 (2013.01); H04W 4/40 (2018.02); H04W 84/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method performed by a station (STA) in a wireless local area network (WLAN) system, the method comprising:
receiving a Next Generation V2X Physical Protocol Data Unit (NGV PPDU), wherein the NGV PPDU includes a legacy signal (L-SIG) field, a repeated L-SIG (RL-SIG) field being contiguous to the L-SIG field, an NGV signal (NGV-SIG) field being contiguous to the RL-SIG field, a repeated NGV signal (RNGV-SIG) field being contiguous to the NGV-SIG field, an NGV Long Training Field (NGV-LTF), a data field, and at least one midamble,
wherein the RL-SIG field is a repeat of the L-SIG field, and the RNGV-SIG field is a repeat of the NGV-SIG field,
wherein the NGV-SIG field includes a first field related to a Physical version, a second field related to a periodicity of the at least one midamble, and a third field related to a format of the NGV-LTF,
wherein the NGV PPDU has a bandwidth of 10 MHz,
wherein the third field is set to a first value based on the NGV-LTF being configured based on an NGV-LTF-1x sequence,
wherein the third field is set to a second value based on the NGV-LTF being configured based on an NGV-LTF-2x sequence,
wherein the NGV-LTF-1x sequence is defined as {1, 0, 1, 0, −1, 0, 1, 0, −1, 0, −1, 0, 1, 0, 1, 0, 1, 0, −1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, −1, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, 1, 0, 1, 0, −1},
wherein the NGV-LTF-2x sequence is defined as {1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 0, 1, −1, −1, 1, 1, −1, 1, −1, 1, −1, −1, −1, −1, −1, 1, 1, −1, −1, 1, −1, 1, −1, 1, 1, 1, 1, −1, −1},
wherein a symbol related to the NGV-LTF-1x sequence includes a Guard Interval (GI) having a length of 1.6 μs, and a duration of the symbol related to the NGV-LTF-1x sequence has a length of 4.8 μs; and
decoding the NGV PPDU based on the NGV-SIG field.