US 12,068,986 B2
Technique for transmitting and receiving frame in wireless communication system
Dongguk Lim, Seoul (KR); Eunsung Park, Seoul (KR); Insun Jang, Seoul (KR); and Jinsoo Choi, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/278,633
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 1, 2019, PCT No. PCT/KR2019/012809
§ 371(c)(1), (2) Date Mar. 22, 2021,
PCT Pub. No. WO2020/071726, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0117210 (KR), filed on Oct. 1, 2018; and application No. 10-2019-0003507 (KR), filed on Jan. 10, 2019.
Prior Publication US 2022/0045812 A1, Feb. 10, 2022
Int. Cl. H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 84/12 (2009.01)
CPC H04L 5/0048 (2013.01) [H04L 5/001 (2013.01); H04L 5/0098 (2013.01); H04L 27/26 (2013.01); H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method in a Wireless Local Area Network (WLAN) system, the method comprising:
generating a Next Generation Vehicular network (NGV) Physical Protocol Data Unit (PPDU) including a legacy signal (L-SIG) field including length information, a repeated L-SIG field which is a repeat of the L-SIG field, an NGV signal (NGV-SIG) field including information for interpreting the NGV PPDU, and an NGV data field,
wherein the L-SIG field is transmitted on a first symbol,
wherein the repeated L-SIG field is contiguous to the L-SIG field and transmitted on a second symbol being distinct from the first symbol,
wherein the NGV-SIG field is contiguous to the repeated L-SIG field and transmitted on a third symbol being distinct from the second symbol; and
transmitting the NGV PPDU, wherein a bandwidth of the NGV PPDU is 20 MHz, and the NGV PPDU is transmitted based on frequency spacing of 156.25 kHz, and
wherein the NGV PPDU is transmitted based on guard tones, Direct Current (DC) tones, pilot sub-carriers, and data sub-carriers, and wherein the pilot sub-carriers and the data sub-carriers have a sub-carrier index range which is defined based on [−58:−2, 2:58].