US 12,143,216 B2
Enhancements for beamformed SL groupcast over MMW bands
Sourjya Dutta, San Diego, CA (US); Kapil Gulati, Belle Mead, NJ (US); and Junyi Li, Fairless Hills, PA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 26, 2021, as Appl. No. 17/452,386.
Prior Publication US 2023/0132063 A1, Apr. 27, 2023
Int. Cl. H04L 1/08 (2006.01); H04L 1/1812 (2023.01)
CPC H04L 1/08 (2013.01) [H04L 1/1812 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and
at least one processor coupled to the memory and configured to:
transmit, to one or more UEs via groupcasting, a sidelink (SL) transmission comprising at least one packet in a first direction using a first precoder; and
retransmit, to the one or more UEs via groupcasting based on a configured maximum number of directional retransmissions and without allocating additional processes and memory for the at least one packet, the SL transmission based on a same hybrid automatic repeat request (HARQ) process identifier and in one or more directions different from the first direction using one or more precoders different from the first precoder based on a SL retransmission configuration, wherein the same HARQ process identifier is associated with the one or more directions, the first direction, the one or more precoders, and the first precoder.