US 11,706,322 B2
Method and device for identifying packet in wireless LAN system
Dongguk Lim, Seoul (KR); Eunsung Park, Seoul (KR); Sunwoong Yun, Seoul (KR); and Jinsoo Choi, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on May 11, 2022, as Appl. No. 17/742,097.
Application 17/742,097 is a continuation of application No. 17/256,868, granted, now 11,349,966, previously published as PCT/KR2019/008042, filed on Jul. 2, 2019.
Claims priority of application No. 10-2018-0077337 (KR), filed on Jul. 3, 2018; and application No. 10-2018-0084380 (KR), filed on Jul. 19, 2018.
Prior Publication US 2022/0272181 A1, Aug. 25, 2022
Int. Cl. H04L 27/18 (2006.01); H04W 84/12 (2009.01); H04L 69/22 (2022.01)
CPC H04L 69/22 (2013.01) [H04L 27/18 (2013.01); H04W 84/12 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, the method comprising:
receiving a physical protocol data unit (PPDU),
wherein the PPDU includes a legacy signal field, a control signal field contiguous to the legacy signal field, and a data field,
wherein the legacy signal field is received through a first symbol, and the control signal field is received through a second symbol,
wherein the legacy signal field and the control signal field are generated based on a binary phase shift keying (BPSK) constellation,
wherein the legacy signal field is generated based on a first signal bit,
wherein the control signal field is generated based on a second signal bit, and
wherein the second signal bit includes a first control bit for identifying that the PPDU is an extreme high throughput (EHT) PPDU and a second control bit including information of a duration of transmission opportunity (TXOP) related to the PPDU; and
decoding the PPDU based on the control signal field.