Patent ID: 11743969

Abstract:
A method and a User Equipment (UE) for performing a small data transmission are provided. The method includes receiving a Radio Resource Control (RRC) release message; transitioning to an RRC_INACTIVE state in response to receiving the RRC release message; measuring at least one Downlink (DL) Reference Signal (RS) to obtain a measurement result; selecting a particular Configure Grant (CG) resource for the small data transmission according to the measurement result; determining whether a Timing Advance (TA) value for the particular CG resource is valid for small data transmission according to (i) an amount of Reference Signal Received Power (RSRP) change of a particular DL RS associated with the particular CG resource, the particular DL RS being one of the at least one DL RS, and (ii) whether a TA-related timer is running; and performing the small data transmission on the particular CG resource after determining that the TA value is valid.