US 11,722,259 B2
Hybrid automatic repeat request (HARQ) process when using sidelink for retransmission
Hua Wang, Basking Ridge, NJ (US); Piyush Gupta, Bridgewater, NJ (US); Junyi Li, Chester, NJ (US); Xiaoxia Zhang, San Diego, CA (US); Jing Sun, San Diego, CA (US); Yisheng Xue, San Diego, CA (US); and Seyed Ali Akbar Fakoorian, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 30, 2020, as Appl. No. 16/943,098.
Claims priority of provisional application 62/927,814, filed on Oct. 30, 2019.
Prior Publication US 2021/0135794 A1, May 6, 2021
Int. Cl. H04L 5/00 (2006.01); H04L 1/1812 (2023.01); H04L 1/1867 (2023.01); H04W 24/10 (2009.01); H04W 72/02 (2009.01); H04L 1/00 (2006.01); H04W 92/18 (2009.01)
CPC H04L 1/1819 (2013.01) [H04L 1/0026 (2013.01); H04L 1/189 (2013.01); H04L 5/0055 (2013.01); H04W 24/10 (2013.01); H04W 72/02 (2013.01); H04W 92/18 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for wireless communications by a first user equipment (UE), comprising:
obtaining first data, from a network entity, intended for a second UE, wherein the obtaining includes decoding a first transmission of the first data intended for the second UE;
receiving signaling indicating the first UE is to retransmit the first data to the second UE; and
in response to the signaling:
transmitting sidelink control information (SCI) scheduling a physical sidelink shared channel (PSSCH) transmission from the first UE to the second UE, wherein the SCI includes a hybrid automatic repeat request (HARQ) process identifier (ID), and wherein the SCI indicates the HARQ process ID is associated with a retransmission of data from the network entity; and
retransmitting the first data to the second UE via the PSSCH.