US 12,457,057 B2
Method and device for performing retransmission in wireless communication system
Jongwoong Shin, Seoul (KR); Bonghoe Kim, Seoul (KR); and Sung Ryong Hong, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/034,211
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 12, 2021, PCT No. PCT/KR2021/004585
§ 371(c)(1), (2) Date Apr. 27, 2023,
PCT Pub. No. WO2022/097850, PCT Pub. Date May 12, 2022.
Claims priority of application No. 10-2020-0148030 (KR), filed on Nov. 6, 2020.
Prior Publication US 2023/0396362 A1, Dec. 7, 2023
Int. Cl. H04L 1/08 (2006.01); H04L 1/00 (2006.01); H04L 1/1812 (2023.01)
CPC H04L 1/0063 (2013.01) [H04L 1/08 (2013.01); H04L 1/1812 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method by performed a first device in a wireless communication system, the method comprising:
receiving a first signal comprising coded data from a second device;
performing decoding on the coded data including block groups, each of the block groups includes code blocks;
identifying a location and number of at least one code block where decoding has failed;
determining whether to request retransmission based on the location and number of the at least one code block; and
requesting, to the second device, retransmission of at least one of the block groups based on the location and number of the at least one code block,
wherein each of the block groups comprises an outer code block that corresponds to a set of code blocks including information bit-based first type inner code blocks and parity bit-based second type inner code blocks, and
wherein the retransmission is requested for retransmission of at least one of an information part or a parity part of the outer code block based on a location and number of at least one bit having a possibility of an error in the outer code block.