US 11,990,998 B2
Puncturing pattern for HARQ-IR retransmission
Jinmin Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); Dongguk Lim, Seoul (KR); Eunsung Park, Seoul (KR); and Sunwoong Yun, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/310,872
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 22, 2019, PCT No. PCT/KR2019/016173
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/197033, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0035071 (KR), filed on Mar. 27, 2019.
Prior Publication US 2022/0149990 A1, May 12, 2022
Int. Cl. H04L 1/08 (2006.01); H04L 1/00 (2006.01); H04W 84/12 (2009.01)
CPC H04L 1/08 (2013.01) [H04L 1/0059 (2013.01); H04L 1/0069 (2013.01); H04W 84/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, the method comprising:
performing, by a station (STA), a binary convolutional code (BCC) encoding on a data field
puncturing, by the STA, the data field in a first pattern; and
transmitting, by the STA, a physical protocol data unit (PPDU) including a first control field and a data field punctured in the first pattern, wherein the first control field includes control information related to the first pattern,
wherein the data field punctured in the first pattern has a code rate of one of 2/3, 3/4, or 5/6,
wherein based on a maximum number of transmissions being 2 and the code rate being 2/3, the first pattern for initial transmission is [1, 1; 1, 0], and the first pattern for retransmission is [0, 1; 1, 1],
wherein based on a maximum number of transmissions being 2 and the code rate being 3/4, the first pattern for initial transmission is [1, 1, 0; 1, 0, 1], and the first pattern for retransmission is [1, 0, 1; 0, 1, 1],
wherein based on a maximum number of transmissions being 2 and the code rate being 5/6, the first pattern for initial transmission is [1, 1, 0, 1, 0; 1, 0, 1, 0, 1], and the first pattern for retransmission is [1, 0, 1, 0, 1; 0, 1, 0, 1, 1],
wherein upon the retransmission, a punctured bit for the initial transmission is not be punctured, and a bit furthest from the punctured bit for the initial transmission is punctured,
wherein a matrix [a, b; c, d] represents a matrix having an element ‘a’ in a first row and a first column, an element ‘b’ in the first row and a second column, an element ‘c’ in a second row and the first column, and an element ‘d’ in the second row and the second column,
wherein a value ‘1’ means a bit that is not punctured but is bypassed and transmitted, and
wherein a value ‘0’ means a bit that is punctured and not transmitted.