US 11,818,737 B2
Methods and apparatuses for data retransmission using sidelink diversity
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 Dec. 18, 2019, as Appl. No. 16/719,471.
Prior Publication US 2021/0195573 A1, Jun. 24, 2021
Int. Cl. H04W 72/51 (2023.01); H04L 5/00 (2006.01); H04W 88/04 (2009.01); H04W 72/30 (2023.01)
CPC H04W 72/51 (2023.01) [H04L 5/0037 (2013.01); H04L 5/0055 (2013.01); H04W 72/30 (2023.01); H04W 88/04 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method for wireless communications performed by a helper user equipment (UE), comprising:
receiving a data transmission from a network node;
receiving a downlink control information (DCI) message including a field indicating whether the data transmission is intended for the helper UE or a target UE;
receiving a control message indicating whether the data transmission is to be at least partially decoded by the helper UE when the data transmission is intended for the target UE;
decoding at least part of the data transmission intended for the target UE in response to the control message indicating the data transmission is to be at least partially decoded;
retransmitting the data transmission to the target UE based at least in part on the field indicating the data transmission is intended for the target UE; and
performing a hybrid automatic repeat request (HARQ) retransmission of the data transmission to the target UE in accordance with either a semi-persistently scheduled resource allocation of an intended sidelink for the retransmission or a resource allocation received in the control message.