Patent ID: 11963220
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A wireless communication device, comprising:
a memory storing software instructions;
processor circuitry configured to implement the software instructions to cause the wireless communication device to:
receive, from a base station, a downlink control information (DCI) message including an indication of a first listen-before-talk (LBT) category and an indication of cyclic prefix information;
receive, from the base station, a second message indicating timing information for a channel occupancy time (COT) initiated by the base station after receiving the DCI message;
perform an LBT procedure based on an LBT category other than the first LBT category in response to determining, based on the timing information, that the particular time is within the COT;
perform an LBT procedure based on the first LBT category in response to determining, based on the timing information, that a particular time granted for uplink transmission is not within the COT; and
in response to successful completion of the LBT procedure, transmit a message having a cyclic prefix based on the cyclic prefix information.