US 12,250,085 B2
Method and apparatus for supporting HARQ feedback transmission in device-to-device communication system
Hyunjeong Kang, Suwon-si (KR); Sangkyu Baek, Suwon-si (KR); and Anil Agiwal, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/441,196
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Mar. 19, 2020, PCT No. PCT/KR2020/003761
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2020/197167, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0032806 (KR), filed on Mar. 22, 2019; application No. 10-2019-0050283 (KR), filed on Apr. 30, 2019; and application No. 10-2020-0016669 (KR), filed on Feb. 11, 2020.
Prior Publication US 2022/0158776 A1, May 19, 2022
Int. Cl. H04L 1/1812 (2023.01); H04L 1/1867 (2023.01); H04W 4/40 (2018.01); H04W 28/02 (2009.01); H04W 76/27 (2018.01)
CPC H04L 1/1893 (2013.01) [H04L 1/1812 (2013.01); H04W 76/27 (2018.02); H04W 4/40 (2018.02); H04W 28/0268 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method performed by a first terminal in a wireless communication system, the method comprising:
receiving, from a base station, configuration information including first information on a sidelink hybrid automatic repeat request (HARQ) feedback set to enabled or disabled for a logical channel;
selecting at least one logical channel among a plurality of logical channels, wherein the at least one logical channel includes sidelink data to transmit and the at least one logical channel is configured with the sidelink HARQ feedback set to enabled based on the first information;
obtaining a medium access control (MAC) protocol data unit (PDU) including the sidelink data of the selected at least one logical channel;
setting a HARQ feedback indicator to enabled based on the first information;
transmitting, to a second terminal, the MAC PDU and the HARQ feedback indicator set to enabled; and
monitoring feedback information related to the MAC PDU.