US 12,150,098 B2
MPDU padding for HARQ operation
Taewon Song, Seoul (KR); Kiseon Ryu, Seoul (KR); Jeongki Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); Suhwook Kim, Seoul (KR); Jinmin Kim, Seoul (KR); and Insun Jang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/600,993
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 6, 2020, PCT No. PCT/KR2020/004629
§ 371(c)(1), (2) Date Oct. 1, 2021,
PCT Pub. No. WO2020/209558, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/831,198, filed on Apr. 9, 2019.
Prior Publication US 2022/0167319 A1, May 26, 2022
Int. Cl. H04W 72/04 (2023.01); H04W 84/12 (2009.01)
CPC H04W 72/04 (2013.01) [H04W 84/12 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, the method comprising:
generating, by a station (STA), a physical (PHY) protocol data unit (PPDU) including at least one subframe and information related to a subframe length,
wherein a PPDU includes a legacy signal (L-SIG) field having a length field which is set to a value satisfying a condition that a remainder is zero when the length field is divided by three,
wherein the PPDU further includes a repeated L-SIG field which is a repeat of the L-SIG field and is contiguous to the L-SIG field,
wherein the PPDU further includes a universal signal field which is contiguous to the repeated L-SIG field and has three-bit information related to a physical version of the PPDU,
wherein the subframe includes a medium access control (MAC) protocol data unit (MPDU) and a padding bit,
wherein a length of the padding bit is determined such that a length of the subframe is an integer multiple of a codeword length,
wherein the information related to the subframe length is included in a hybrid automatic repeat request (HARQ) header of the PPDU,
wherein the information related to the subframe length is information on a number of codewords related to the subframe length; and
transmitting, by the STA, the PPDU.