US Patent No. 10,368,372

LISTEN-BEFORE-TALK TECHNIQUES FOR UPLINK TRANSMISSIONS


Patent No. 10,368,372
Issue Date July 30, 2019
Title Listen-before-talk Techniques For Uplink Transmissions
Inventorship Arumugam Chendamarai Kannan, San Diego, CA (US)
Tao Luo, San Diego, CA (US)
Chirag Patel, San Diego, CA (US)
Srinivas Yerramalli, San Diego, CA (US)
Tamer Kadous, San Diego, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,368,372

1. A method for wireless communication, comprising:receiving an uplink grant identifying uplink resources for an uplink transmission;
identifying, after receiving the uplink grant, a time difference between receiving the uplink grant and the uplink resources for the uplink transmission;
identifying a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink grant and the identified time difference between receiving the uplink grant and the uplink resources for the uplink transmission, the LBT scheme comprising a first duration LBT procedure or a second duration LBT procedure that is longer than the first duration LBT procedure; and
performing the first duration LBT procedure or the second duration LBT procedure based at least in part on the identified LBT scheme and the identified time difference.