US 12,022,435 B2
Radio (NR) sidelink (SL) channel access using virtual collision metric
Yisheng Xue, San Diego, CA (US); Jing Sun, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Juan Montojo, San Diego, CA (US); Ozcan Ozturk, San Diego, CA (US); Sony Akkarakaran, Poway, CA (US); Chih-Hao Liu, San Diego, CA (US); Piyush Gupta, Bridgewater, NJ (US); and Rajat Prakash, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM INCORPORATED, San Diego, CA (US)
Filed on Nov. 25, 2020, as Appl. No. 17/247,066.
Prior Publication US 2022/0167311 A1, May 26, 2022
Int. Cl. H04W 72/02 (2009.01); H04W 28/02 (2009.01); H04W 72/21 (2023.01); H04W 72/51 (2023.01); H04W 72/542 (2023.01)
CPC H04W 72/02 (2013.01) [H04W 28/0215 (2013.01); H04W 72/21 (2023.01); H04W 72/51 (2023.01); H04W 72/542 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), the method comprising:
selecting a plurality of resources from a sidelink resource pool based on a first measurement of an availability of resources within the sidelink resource pool at a first time;
performing a second measurement of an availability of the selected plurality of resources at a second time after the first time;
storing a first virtual collision indication in a virtual collision log based on the second measurement, the virtual collision log including a plurality of virtual collision indications;
applying, based on a time window, a filter to the virtual collision log to provide a filtered virtual collision metric; and
transmitting, based on the filtered virtual collision metric:
a first sidelink transmission using different resources than the selected plurality of resources, and
a transmission parameter.