US 11,888,628 B2
Configurable transmission timeline for physical sidelink feedback channel
Sudhir Kumar Baghel, Hillsborough, NJ (US); Gabi Sarkis, San Diego, CA (US); Kapil Gulati, Montgomery, NJ (US); Tien Viet Nguyen, Bridgewater, NJ (US); and Shuanshuan Wu, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 10, 2020, as Appl. No. 16/948,273.
Claims priority of provisional application 62/906,285, filed on Sep. 26, 2019.
Prior Publication US 2021/0099261 A1, Apr. 1, 2021
Int. Cl. H04L 1/1867 (2023.01); H04W 72/0446 (2023.01); H04W 72/51 (2023.01); H04W 72/30 (2023.01)
CPC H04L 1/1874 (2013.01) [H04L 1/1893 (2013.01); H04W 72/0446 (2013.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01)] 25 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a first user equipment, comprising:
transmitting, to a second user equipment and in sidelink control information, an indication of a first time buffer threshold, of a plurality of candidate time buffer thresholds configured by a network node for selection by the first UE, associated with providing first sidelink hybrid automatic repeat request feedback on a physical sidelink feedback channel,
the first time buffer threshold being based at least in part on a user equipment capability of the first user equipment;
receiving, from the second user equipment and in the sidelink control information, one or more indications of:
a rejection to use the first time buffer threshold, and
a second time buffer threshold, of the plurality of candidate time buffer thresholds, associated with providing the first sidelink hybrid automatic repeat request feedback;
transmitting, to the second user equipment, an indication of an agreement to use the second time buffer threshold;
transmitting, to the second user equipment, using a first physical sidelink feedback control channel (PSFCH) sequence associated with the first user equipment, and based at least in part on the indication of the agreement, the first sidelink hybrid automatic repeat request feedback for a sidelink communication received from the second user equipment,
the first sidelink hybrid automatic repeat request feedback being transmitted on the physical sidelink feedback channel based at least in part on the second time buffer threshold, and
receiving, from the second user equipment, second sidelink hybrid automatic repeat request feedback, using a second PSFCH sequence associated with the second user equipment, based at least in part on:
transmitting the first sidelink hybrid automatic repeat request feedback, and
a collision between the first sidelink hybrid automatic repeat request feedback, transmitted by the first user equipment and third sidelink hybrid automatic repeat request feedback, received from a third user equipment.