US 12,452,022 B2
Multiplexing physical sidelink feedback channels in sidelink communication
Chih-Hao Liu, San Diego, CA (US); Jing Sun, San Diego, CA (US); Yisheng Xue, San Diego, CA (US); Giovanni Chisci, San Diego, CA (US); and Xiaoxia Zhang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 11, 2022, as Appl. No. 17/663,019.
Prior Publication US 2023/0370232 A1, Nov. 16, 2023
Int. Cl. H04L 5/00 (2006.01); H04W 72/20 (2023.01)
CPC H04L 5/0055 (2013.01) [H04W 72/20 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a first sidelink user equipment (UE), the method comprising:
receiving, from a second sidelink UE, a configuration indicating a physical sidelink feedback channel (PSFCH) resource pool associated with multiplexing a first PSFCH having a first format with a second PSFCH having a second format, wherein the second format is different from the first format;
receiving, from the second sidelink UE, one or more transport blocks (TBs) via a groupcast message with a groupcast ID;
selecting, from the resource pool based on a hashing function of an addition of the groupcast ID with an identifier associated with the second sidelink UE, first resources associated with the first PSFCH; and
transmitting, to the second sidelink UE based on the configuration, an acknowledgement/negative-acknowledgment (ACK/NACK) associated with the one or more TBs via the first PSFCH using the first resources and a second ACK/NACK via the second PSFCH multiplexed with the first PSFCH.