US 11,856,573 B2
Method and apparatus for performing SL DRX operation in NR V2X
Giwon Park, Seoul (KR); Hanbyul Seo, Seoul (KR); Seungmin Lee, Seoul (KR); Seoyoung Back, Seoul (KR); and Jongwoo Hong, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jan. 24, 2023, as Appl. No. 18/101,063.
Application 18/101,063 is a continuation of application No. PCT/KR2022/007072, filed on May 17, 2022.
Claims priority of application No. 10-2021-0063554 (KR), filed on May 17, 2021; and application No. 10-2021-0064115 (KR), filed on May 18, 2021.
Prior Publication US 2023/0164770 A1, May 25, 2023
Int. Cl. H04W 72/25 (2023.01); H04W 72/1263 (2023.01); H04W 76/28 (2018.01); H04L 1/1812 (2023.01)
CPC H04W 72/1263 (2013.01) [H04L 1/1812 (2013.01); H04W 72/25 (2023.01); H04W 76/28 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method performing wireless communication by a first device, the method comprising:
obtaining an SL DRX configuration including information related to a sidelink (SL) discontinuous reception (DRX) timer;
receiving a first SCI for scheduling of second sidelink control information (SCI) and a physical sidelink shared channel (PSSCH) from a second device through a physical sidelink control channel (PSCCH);
receiving the second SCI and a medium access control (MAC) protocol data unit (PDU) from the second device through the PSSCH;
determining a physical sidelink feedback channel (PSFCH) resource based on an index of a sub-channel related to the PSSCH and an index of a slot; and
starting the SL DRX timer after the PSFCH resource based on:
(i) a cast type related to the second SCI being a groupcast,
(ii) a SL hybrid automatic repeat request (HARQ) feedback being enabled by the second SCI, and
(iii) a negative-only acknowledgement being selected.