Patent ID: 11924873
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A transmitting device for wireless communication, comprising:
one or more processors;
one or more memory coupled with the one or more processors; and
instructions stored in the one or more memories and executable by the one or more processors to cause the transmitting device to:
perform a first transmission to one or more receiving devices, the first transmission comprising a sidelink transmission associated with a groupcast transmission type;

receive feedback messages associated with the first transmission associated with the groupcast transmission type, wherein the feedback messages comprise acknowledgement feedback messages, negative-acknowledgement feedback messages, or both;
select between resetting a contention window size for performing one or more subsequent transmissions to a minimum value or increasing the contention window size for performing the one or more subsequent transmissions, wherein the contention window size is reset based at least in part on one or more ratios being greater than a threshold, and the contention window size is increased based at least in part on the one or more ratios being less than the threshold, wherein the one or more ratios includes one or more of: a ratio of received acknowledgement feedback messages to an expected feedback message count, a ratio of received negative-acknowledgement feedback messages to the expected feedback message count, or a ratio of both received acknowledgement feedback messages and received negative-acknowledgement feedback messages to the expected feedback message count; and
perform the one or more subsequent transmissions in accordance with a clear channel assessment procedure using the contention window size, the one or more subsequent transmissions comprising subsequent sidelink transmissions.