US 11,930,530 B2
Early LBT failure reporting for multi-TTI grant 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); Xiaoxia Zhang, San Diego, CA (US); Piyush Gupta, Bridgewater, NJ (US); Sony Akkarakaran, Poway, CA (US); Tao Luo, San Diego, CA (US); Juan Montojo, San Diego, CA (US); and Peter Gaal, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 7, 2021, as Appl. No. 17/341,322.
Prior Publication US 2022/0394761 A1, Dec. 8, 2022
Int. Cl. H04W 74/08 (2009.01); H04W 72/04 (2023.01); H04W 72/0453 (2023.01); H04W 72/21 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0808 (2013.01) [H04W 72/0453 (2013.01); H04W 72/21 (2023.01); H04W 74/004 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communications by a transmitter user equipment (UE), comprising:
receiving, from a network entity, a downlink control information (DCI) allocating resources in an unlicensed frequency band for multiple physical sidelink shared channel (PSSCH) transmissions to at least one receiver UE across transmission time intervals (TTIs);
performing a listen-before-talk (LBT) channel access procedure in the TTIs; and
transmitting at least one LBT report to the network entity on a physical uplink control channel (PUCCH) resource that occurs before another PUCCH resource used for transmitting acknowledgment feedback for the PSSCH transmissions.