US 11,870,628 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)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Mar. 30, 2023, as Appl. No. 18/128,925.
Application 18/128,925 is a continuation of application No. 17/623,800, previously published as PCT/KR2020/008908, filed on Jul. 1, 2020.
Claims priority of application No. 10-2019-0080946 (KR), filed on Jul. 4, 2019.
Prior Publication US 2023/0239190 A1, Jul. 27, 2023
Int. Cl. H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04W 84/12 (2009.01)
CPC H04L 27/26132 (2021.01) [H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04L 27/2603 (2021.01); H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a station (STA) in a wireless local area network system, the method comprising:
receiving a physical protocol data unit (PPDU) comprising a legacy-signal (L-SIG) field;
determining whether the PPDU comprises a repeated L-SIG (RL-SIG) field which is a repeat of the L-SIG field, wherein the RL-SIG is contiguous to the L-SIG field; and
after determining that the PPDU comprises the RL-SIG field, determining whether a length field included in the L-SIG field is set to a value satisfying a condition that a remainder is zero when a value of the length field is divided by three (3), wherein the remainder is used to differentiate an extreme high throughput (EHT) PPDU from a high efficiency (HE) PPDU,
wherein the PPDU is determined as the EHT PPDU based on the remainder having a value of zero (0), and the PPDU is determined as the HE PPDU based on the remainder having a non-zero value.