	US 12,232,090 B2
	Method and apparatus for configuring PSFCH resource in NR V2X
Seungmin Lee, Seoul (KR); Uihyun Hong, Seoul (KR); Daesung Hwang, Seoul (KR); and Hanbyul Seo, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/763,517
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Aug. 20, 2021, PCT No. PCT/KR2021/011113 § 371(c)(1), (2) Date Mar. 24, 2022, PCT Pub. No. WO2022/039549, PCT Pub. Date Feb. 24, 2022.
Claims priority of provisional application 63/068,340, filed on Aug. 20, 2020.
Claims priority of provisional application 63/070,246, filed on Aug. 25, 2020.
Prior Publication US 2022/0346090 A1, Oct. 27, 2022
Int. Cl. H04W 72/0446 (2023.01); H04L 1/1829 (2023.01)

CPC H04W 72/0446 (2013.01) [H04L 1/1864 (2013.01)]

17 Claims

1. A method for performing wireless communication by a first device, the method comprising:

performing a PSSCH reception based on a physical sidelink shared channel (PSSCH) resource in one or more PSSCH slots and one or more subchannels,

wherein at least one first resource block (RB) from a set of RBs for a physical sidelink feedback channel (PSFCH) in a PSFCH slot is associated with the PSSCH resource;

transmitting hybrid automatic repeat request acknowledgment (HARQ-ACK) information in the PSFCH, in response to the PSSCH reception,

wherein the one or more PSSCH slots are associated with the PSFCH slot, and

wherein, based on a number of the one or more PSSCH slots being less than a period of the PSFCH slot:

i) the at least one first RB is associated with the one or more PSSCH slots and the one or more subchannels, first in ascending order of a slot index of the one or more PSSCH slots and second in ascending order of a subchannel index of the one or more subchannels from a lowest RB among the set of RBs; and

ii) a number of RBs associated with each slot among the one or more PSSCH slots for each subchannel is a number of RBs for each subchannel divided by the period of the PSFCH slot, the number of RBs for each subchannel being a number of the set of RBs divided by a number of the one or more subchannels.