US 11,949,610 B2
Technique for forming midamble 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. 17/615,405
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jun. 26, 2020, PCT No. PCT/KR2020/008318
§ 371(c)(1), (2) Date Nov. 30, 2021,
PCT Pub. No. WO2020/263001, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10-2019-0077950 (KR), filed on Jun. 28, 2019.
Prior Publication US 2022/0239425 A1, Jul. 28, 2022
Int. Cl. H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04W 84/12 (2009.01); H04W 92/18 (2009.01)
CPC H04L 5/0044 (2013.01) [H04L 27/26025 (2021.01); H04L 27/2607 (2013.01); H04W 84/12 (2013.01); H04W 92/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method performed in a wireless local area network (WLAN) system, the method performed by a receiving station (STA) and comprising:
receiving a Next Generation V2X Physical Protocol Data Unit (NGV PPDU),
wherein the NGV PPDU includes a preamble, a data field contiguous to the preamble, and a midamble contiguous to the data field,
wherein the preamble includes a legacy signal (L-SIG) field, a repeated signal field in which the L-SIG field is repeated, and an NGV signal field including control information for the NGV PPDU,
wherein the NGV signal field includes 1-bit information related to a format of the midamble,
wherein the midamble is configured based on one of a long training field (LTF) sequence of a first interval and an LTF sequence of a second interval,
wherein the format of the midamble is determined as one of a first format related to the LTF sequence of the first interval and a second format related to the LTF sequence of the second interval;
wherein the symbol of the midamble of the first format includes an LTF signal configured based on the LTF sequence of the first interval and a guard interval (GI) related to the LTF signal,
wherein a duration of the LTF signal is 3.2 μs, a duration of the GI is 1.6 μs, and a symbol duration of the midamble of the first format is 4.8 μs; and
decoding the NGV PPDU based on the NGV signal field.