US Patent No. 10,251,197

TRANSMITTING UPLINK CONTROL CHANNEL INFORMATION WHEN A CLEAR CHANNEL ASSESSMENT OF AN UNLICENSED CARRIER FAILS


Patent No. 10,251,197
Issue Date April 02, 2019
Title Transmitting Uplink Control Channel Information When A Clear Channel Assessment Of An Unlicensed Carrier Fails
Inventorship Srinivas Yerramalli, San Diego, CA (US)
Xiaoxia Zhang, San Diego, CA (US)
Tao Luo, San Diego, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,251,197

1. A method of wireless communication at a User Equipment (UE), comprising:generating uplink control information;
attempting to perform a clear channel assessment (CCA) of an unlicensed carrier for an uplink burst;
transmitting the uplink control information on the unlicensed carrier when the CCA is successful; and
performing one of the following when the UE determines that the UE's attempt to perform CCA has failed:
transmitting the uplink control information on the unlicensed carrier in a later subframe of the uplink burst;
transmitting the uplink control information on the unlicensed carrier in a different uplink burst; or
transmitting the uplink control information on a different carrier.