US 12,144,022 B2
Listen-before-talk techniques for full-duplex communications
Ahmed Attia Abotabl, San Diego, CA (US); Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US); and Krishna Kiran Mukkavilli, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Mar. 12, 2021, as Appl. No. 17/200,586.
Prior Publication US 2022/0295549 A1, Sep. 15, 2022
Int. Cl. H04W 74/0808 (2024.01); H04L 5/14 (2006.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01)
CPC H04W 74/0808 (2013.01) [H04L 5/14 (2013.01); H04W 72/044 (2013.01); H04W 72/23 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
receiving a configuration message indicating a plurality of downlink transmission cancellation configurations;
receiving, from a network device, a first control message scheduling a downlink transmission to the UE in a shared radio frequency spectrum band;
receiving a second control message from the network device, the second control message indicating a first downlink transmission cancellation configuration of the plurality of downlink transmission cancellation configurations, the second control message scheduling an uplink transmission in the shared radio frequency spectrum band, and the first downlink transmission cancellation configuration indicating that at least a portion of the downlink transmission scheduled for transmission during clear channel assessment resources associated with the uplink transmission is canceled;
performing, in the shared radio frequency spectrum band, a clear channel assessment procedure during a portion of the clear channel assessment resources that corresponds to the portion of the downlink transmission that is canceled by the second control message; and
transmitting, in the shared radio frequency spectrum band, the uplink transmission based at least in part on the clear channel assessment procedure.