US 11,736,238 B2
HARQ feedback for sidelink communication
Sudhir Kumar Baghel, Hillsborough, NJ (US); Kapil Gulati, Belle Mead, NJ (US); Arjun Bharadwaj, Cupertino, CA (US); Tien Viet Nguyen, Bridgewater, NJ (US); and Shailesh Patil, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 2, 2021, as Appl. No. 17/301,418.
Application 17/301,418 is a continuation of application No. 16/843,679, filed on Apr. 8, 2020, granted, now 10,972,229.
Claims priority of provisional application 62/842,739, filed on May 3, 2019.
Prior Publication US 2021/0226736 A1, Jul. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/18 (2023.01); H04L 1/1812 (2023.01); H04L 1/1829 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 1/1812 (2013.01) [H04L 1/1861 (2013.01); H04L 5/0055 (2013.01); H04W 72/23 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving a physical sidelink feedback channel (PSFCH) configuration indicating feedback resources selected from a group consisting of: one or more resources to transmit acknowledgement (ACK) or negative acknowledgement (NACK) feedback, and one or more resources to transmit NACK only feedback;
receiving sidelink communications in one or more slots included in a transmission period in a frame structure of a sidelink between the UE and another UE; and
transmitting a plurality of hybrid automatic repeat request (HARQ) feedback communications, associated with the sidelink communications, on the sidelink and in a HARQ feedback resource included in a multi-slot feedback reporting period of the frame structure,
wherein the multi-slot feedback reporting period is different from the one or more slots included in the transmission period, and
wherein, based on the indicated resources in the received PSFCH configuration, the HARQ feedback resource includes either the one or more resources to transmit ACK or NACK feedback, or the one or more resources to transmit NACK only feedback.