Abstract: The present disclosure relates to methods and apparatuses for MRO in a communication system. According to some embodiments of the disclosure, a UE may: receive a UE information request message; and transmit a UE information response message in response to receiving the UE information request message. The UE information response message may include at least one of the following: a radio link failure (RLF) report associated with a multiple universal subscriber identity module (MUSIM) operation of the UE; or a successful handover report, wherein the handover may include a handover of the UE from a first radio access technology (RAT) to a second RAT for voice fallback.

Abstract: Embodiments of the present application relate to methods and apparatuses for a conditional primary cell of a secondary cell group (PSCell) addition and change (CPAC) based fast PSCell switch procedure. According to an embodiment of the present application, a user equipment (UE) includes a transceiver and a processor coupled to the transceiver; and the processor is configured: to receive, via the transceiver, a conditional configuration related to a fast primary cell of a second cell group (PSCell) switch procedure from a network; to initiate the fast PSCell switch procedure in response to receiving the conditional configuration; and to apply the conditional configuration for at least one candidate PSCell in one configuration operation within multiple configuration operations during the fast PSCell switch procedure.

Abstract: A method and apparatus for conditional handover (CHO). The method provides a user equipment (UE), including: a processor and a transceiver coupled to the processor, wherein the processor is configured to, via the transceiver, receive at least one of: a CHO configuration for a target master cell group (MCG) and a target secondary cell group (SCG), an execution condition for the target MCG, or an execution condition for the target SCG; and perform a random access (RA) procedure to the target MCG in response to fulfillment of at least the execution condition for the target MCG.

Abstract: Embodiments of the present application relate to a method and apparatus of supporting quality of experience (QoE) measurement collection. An exemplary method may include: determining at least one of a master node (MN) leg or a secondary node (SN) leg to be used for QoE measurement reporting; and transmitting to a user equipment (UE) information indicating the at least one of the MN leg or the SN leg to be used for QoE measurement reporting.

Abstract: Embodiments of the present application relate to methods and apparatuses for a primary secondary cell group cell (PSCell) change procedure or a conditional PSCell addition and change (CPAC) procedure. According to an embodiment of the present application, a user equipment (UE) includes a transceiver and a processor coupled to the transceiver; and the processor is configured: in response to fulfilling a trigger condition, to generate first information associated with a successful completion of a primary secondary cell group cell (PSCell) change procedure or a conditional PSCell addition and change (CPAC) procedure, wherein the UE switches from a source PSCell to a target PSCell during the PSCell change procedure or the CPAC procedure; and to transmit the first information via the transceiver to a master node (MN) or a target secondary node (SN) which manages the target PSCell.

Abstract: Embodiments of the present application relate to methods and apparatuses of a mobility robustness optimization (MRO) mechanism for a successful primary cell of a second cell group (PSCell) addition report (SPAR) or a successful PSCell change report (SPCR) and a secondary cell group (SCG) failure information procedure.

Abstract: Embodiments of the present application relate to methods and apparatuses for a combined condition in a conditional handover (CHO) procedure under a 3rd Generation Partnership Project (3GPP) 5G system or the like. According to an embodiment of the present application, a method can be performed by a user equipment (UE) and can include: receiving, from a network node, CHO configuration information associated with a candidate cell of the UE, wherein the CHO configuration information includes an execution condition comprising an event and a further event; and transmitting, to the network node, assistant information related to at least one of the event and the further event.

Abstract: Embodiments of the present application relate to methods and apparatuses for deactivation secondary node (SN) with multiple transmission reception points (TRPs) and a secondary cell group (SCG) activation failure. According to an embodiment of the present application, a user equipment (UE) includes a transceiver and a processor coupled to the transceiver; and the processor is configured: to receive a first configuration associated with a set of transmission reception points (TRPs) for a secondary cell group (SCG) of a network; to receive a second configuration associated with a state of the SCG of the network, wherein the state of the SCG corresponds to a deactivated state; to receive an activation indication associated with the SCG from the network; and to access to the SCG via a random access channel (RACH) procedure.

Abstract: Embodiments of the present disclosure relate to wireless communication in an integrated access and backhaul (IAB) network. According to some embodiments of the disclosure, a method performed by a UE may include: determining a location status of the UE relative to a mobile wireless network node based on a criterion. wherein the mobile wireless network node is allowed to serve as a mobile relay node between a BS and the UE: and transmitting the determined location status of the CE to at least one of the mobile wireless network node or the BS.

Abstract: Example communication methods and apparatus are described. One example method includes determining, by a terminal device, that a connection failure occurs between the terminal device and a first cell, where the first cell is a cell of a first network device. The terminal device determines signal quality of a second cell of a second network device, where both the first network device and the second network device provide communication services for the terminal device. If the signal quality of the second cell is greater than or equal to a first preset threshold, the terminal device performs a connection recovery process between the terminal device and the first cell by using the second cell.

Abstract: The present application relates to methods and apparatus for MRO for PSCell change or CPAC in NR-U. One embodiment of the present disclosure provides a master node (MN), comprising: a transceiver; and a processor coupled to the transceiver, wherein the transceiver is configured to receive first information related to downlink (DL) listen before talk (LBT) failure from a first secondary node (SN), and/or second information related to uplink (UL) LBT failure associated with secondary cell group (SCG) failure from one of: a user equipment (UE), or a third node, or a second SN; and wherein the processor is configured to determine whether or not to transfer the first information and/or the second information to the second SN for the second SN to perform a SCG failure type detection.

Abstract: Embodiments of the present disclosure relate to buffer status reporting. According to some embodiments of the disclosure, a method performed by a wireless node may include: receiving a radio resource control (RRC) message configuring one or more logical channels (LCHs) of the wireless node, wherein the RRC message comprises one or more logical channel group (LCG) IDs corresponding to the one or more LCHs; generating a first buffer status reporting (BSR) medium access control (MAC) control element (CE) based on the received RRC message; and transmitting the first BSR MAC CE to a network node.

Abstract: Embodiments of the present application relate to methods and apparatuses for mobility enhancements for an unmanned aerial vehicle (UAV). According to an embodiment of the present application, a user equipment (UE) includes a processor and a transceiver coupled to the processor; and the processor is configured: to receive, via the transceiver, configuration information of a conditional handover (CHO) procedure regarding at least one of a height based condition or a flight path based condition; to evaluate whether at least one execution condition for at least one candidate cell of the CHO procedure is satisfied, wherein the at least one execution condition includes the at least one of the height based condition or the flight path based condition; and to execute the CHO procedure upon the at least one execution condition being satisfied.

Abstract: A communication method includes receiving, by a terminal device comprising a processor, indication information from a master node. The indication information is used to indicate that a key used for signaling transmission performed between the terminal device and a first secondary node by using a second signaling radio bearer (SRB) is a first key. The first key is used for signaling transmission performed between the terminal device and the master node by using a first SRB. The first secondary node and the master node share one central unit. The communication method also includes determining, by the terminal device, based on the indication information, that the first key is used for signaling transmission performed between the terminal device and the first secondary node by using the second SRB.

Abstract: A communication method and apparatus, the method including receiving configuration information of a serving cell, where the configuration information includes a set of physical downlink control channel (PDCCH) configurations, and the set of PDCCH configurations includes N control resource set-related parameters, where each of the N control resource set-related parameters corresponds to each of N transmission reception points (TRPs), and N is an integer greater than or equal to 2, and communicating with the serving cell based on the configuration information.

Abstract: Embodiments of this application provide a communication method, a communications apparatus, and a storage medium. The communication method includes: sending, by a new master network device, a request to an original master network device, to request context information of a terminal device on the original master network device and an original secondary network device; and receiving the context information of the terminal device on the original master network device and the original secondary network device from the original master network device. This application can effectively simplify implementation steps of resuming a multi-connectivity mode by the terminal device, reduce signaling procedures, and shorten a delay, thereby improving network transmission efficiency.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for wireless communication. According to some embodiments of the disclosure, a UE may detect uplink data with a first importance level becoming available to a medium access control (MAC) entity of the UE, wherein the first importance level may identify the relative importance information of the uplink data. The UE may trigger buffer status reporting (BSR) in response to the first importance level satisfying a criterion for triggering the BSR.

Abstract: Disclosed are methods and apparatuses for conditional handover in a non-terrestrial network (NTN). An embodiment of the subject application provides a user equipment (UE). The UE includes a processor and a wireless transceiver coupled to the processor. The processor is configured to: receive, with the wireless transceiver, at least a conditional handover (CHO) configuration and a CHO execution condition for a target cell, wherein the CHO execution condition includes: a time-based event and at least one measurement-based event, or a location-based event and at least one measurement-based event; and evaluate whether the CHO execution condition is fulfilled.

Abstract: Embodiments of the present application relate to methods and apparatuses of a mobility robustness optimization (MRO) mechanism for uplink (UL) coverage enhancement (CE) and network slicing procedures. According to an embodiment of the present application, a user equipment (UE) includes a processor and a transceiver coupled to the processor; and the processor is configured: to receive, via the transceiver from a network node, configuration information regarding at least one of a network slicing operation or an uplink (UL) transmission repetition operation; to perform a UL data transmission procedure or a random access channel (RACH) procedure based on the configuration information; and to transmit, via the transceiver to a serving cell, assistant information related to a failure of the UL data transmission procedure or a random access problem of the RACH procedure, wherein the assistant information is associated with at least one of the network slicing operation or the UL transmission repetition operation.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for packet data convergence protocol (PDCP) reordering management. According to an embodiment of the present disclosure, a user equipment (UE) can include: a receiver configured to receive at least one of application data unit (ADU) discard information associated with an ADU or ADU related information associated with the ADU; and a processor coupled to the receiver and configured to perform a PDCP reordering window management based on the received at least one of the ADU discard information or the ADU related information.