US 11,895,700 B2
Listen before talk based resource modification and reduced channel occupancy time sharing signaling for sidelink communication in unlicensed spectrum
Chih-Hao Liu, San Diego, CA (US); Jing Sun, San Diego, CA (US); Yisheng Xue, San Diego, CA (US); and Xiaoxia Zhang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 24, 2020, as Appl. No. 17/103,012.
Prior Publication US 2022/0167402 A1, May 26, 2022
Int. Cl. H04W 28/04 (2009.01); H04W 74/08 (2009.01)
CPC H04W 74/0808 (2013.01) [H04W 28/04 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), comprising:
selecting, within a resource selection window corresponding to a projected used channel occupancy time (COT) region, a plurality of resources in which to transmit over an unlicensed sidelink channel, wherein the plurality of resources includes a first resource associated with a first subchannel and a second resource associated with a second subchannel non-contiguous with the first subchannel;
attempting a listen before talk (LBT) procedure to initiate a COT in which to transmit over the unlicensed sidelink channel;
moving, based at least in part on the LBT procedure succeeding, the second resource to a time resource, contiguous with the first resource and associated with the first subchannel, such that the first resource and the second resource are contiguous in a time domain, wherein the second resource is moved at a medium access control layer based at least in part on a trigger at a physical layer indicating that the LBT procedure succeeded; and
transmitting, over the unlicensed sidelink channel and based at least in part on moving the second resource, using the plurality of resources.