A method for handling a collision of a UE-requested MA PDU session release procedure and a network-requested MA PDU session release procedure is proposed. If the Access type IE is included in the PDU SESSION RELEASE COMMAND message, and the PDU session is an MA PDU session and having user-plane resources established on the access different from the access indicated in the Access type IE in the PDU SESSION RELEASE COMMAND message, then the UE proceeds with both the UE-requested PDU session release procedure and network-requested PDU session release procedure. Otherwise, the UE aborts the UE-requested PDU session release procedure and stops the timer T3582 and proceeds with the network-requested PDU session release procedure.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a single downlink control information (DCI) message. The UE may map a bit sequence in the single DCI message to a configuration set that includes multiple downlink semi-persistent scheduling configurations or multiple uplink configured grant configurations to be jointly activated or released. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a single downlink control information (DCI) message. The UE may map a bit sequence in the single DCI message to a configuration set that includes multiple downlink semi-persistent scheduling configurations or multiple uplink configured grant configurations to be jointly activated or released. Numerous other aspects are provided.

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.

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.

A method of handling multi-access (MA) Protocol data unit (PDU) session handover is proposed. A UE and network can support Access Traffic Steering Switching and Splitting (ATSSS) functionalities to distribute traffic over 3GPP access and non-3GPP access for the established MA PDU session. An ATSSS-Supported UE first establishes a MA PDU Session on both 3GPP and non-3GPP access in a currently registered PLMN which is an ATSSS-Supported network. The UE then moves from the ATSSS-Supported network to an ATSSS-not-Supported network and finally reaches another ATSSS-Supported network. In one novel aspect, a solution is provided on how to handle the ongoing MA PDU Session with two accesses under handover scenarios between ATSSS-Supported and ATSSS-not-Supported networks. Furthermore, if the ongoing MA PDU Session cannot handover, a solution is provided on how to handle the MA PDU Session.

A method of handling multi-access (MA) Protocol data unit (PDU) session handover is proposed. A UE and network can support Access Traffic Steering Switching and Splitting (ATSSS) functionalities to distribute traffic over 3GPP access and non-3GPP access for the established MA PDU session. An ATSSS-Supported UE first establishes a MA PDU Session on both 3GPP and non-3GPP access in a currently registered PLMN which is an ATSSS-Supported network. The UE then moves from the ATSSS-Supported network to an ATSSS-not-Supported network and finally reaches another ATSSS-Supported network. In one novel aspect, a solution is provided on how to handle the ongoing MA PDU Session with two accesses under handover scenarios between ATSSS-Supported and ATSSS-not-Supported networks. Furthermore, if the ongoing MA PDU Session cannot handover, a solution is provided on how to handle the MA PDU Session.

The present disclosure relates to a communication scheme and system for converging a 5.sup.th generation (5G) communication system for supporting a data rate higher than that of a 4.sup.th generation (4G) system with an internet of things (IoT) technology. The present disclosure is applicable to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars, connected cars, health care, digital education, retails, and security and safety-related services) based on the 5G communication technology and the IoT-related technology. The present disclosure provides a method performed by an access and mobility management function (AMF) entity of a visited public land mobile network (VPLMN) in a communication system.

A base station device (20) includes a control unit (23). The control unit (23) performs operations including: receiving an acquisition request, which is a request for acquiring beam information related to a PDU session established with a terminal device (40); and transmitting beam group information including at least one piece of the beam information, the transmission being performed in association with the PDU session in response to the acquisition request.

The disclosure pertains to configuring a physical channel monitoring occasion in a wireless network and to scheduling beam failure recovery requests by an WTRU in a CONNECTED DRX state.