Embodiments of this disclosure provide a serving node update method and a device. The method includes: sending a first message to a target node; receiving, from the target node, a second message used for responding to the first message; and sending a third message to a terminal device when the second message indicates that the target node rejects a multi-connectivity serving node update, where the third message is used to indicate the terminal device to perform a serving node update in a legacy serving node update manner.

Some aspects relate to apparatuses and methods for implementing mechanisms for performing handover, radio link monitoring (RLM), beam failure detection (BFD), and candidate beam detection (CBD) within the unlicensed spectrum when a listen-before-talk (LBT) failure occurs and/or when a user equipment (UE) performs receiving (RX) beam sweeping. For example, a UE is configured to receive a handover command to connect to a target cell. The UE is further configured to determine a search time and an interruption time uncertainty during a handover procedure initiated by the handover command and in response to a LBT failure or the UE performing a beam sweeping operation. The UE can further determine a handover delay based on the search time and the interruption time uncertainty. In response to a time period for performing the handover procedure exceeding the handover delay, the UE can cease the handover procedure.

The present application discloses a method and a device used in a communication node for wireless communications. The communication node receives a first signaling, the first signaling being used for indicating at least a first target cell and a second target cell; and performs a first handshake process for the first target cell; and performs a second handshake process for the second target cell; and determines whether to initiate an RRC connection re-establishment procedure according to whether at least one of the first handshake process or the second handshake process is successfully completed; neither the first handshake process nor the second handshake process being successfully completed is used to determine to initiate the RRC connection re-establishment procedure; either the first handshake process or the second handshake process being successfully completed is used to determine not to initiate the RRC connection re-establishment procedure.

A method for transmitting a channel state by a terminal in a communication system, according to one embodiment, comprises the steps of: receiving discontinuous reception (DRX) configuration information from a base station; determining whether the terminal is set to transmit channel state information only in onDuration according to a DRX operation; determining whether an arbitrary subframe to be received is a subframe included in onDuration if the terminal is set to transmit the channel state information only in onDuration according to the configuration; and not transmitting the channel state information on the arbitrary subframe if the arbitrary subframe is not a subframe included in onDuration. According to the embodiment, the terminal can efficiently report channel state information.

Embodiments of this application provide a data transmission method and device. The method includes: obtaining, by a first access network device, a first message from a second access network device, where the first message requests context information of a terminal device; and sending, by the first access network device, a data packet to the second access network device. The first access network device is a corresponding access network device of the terminal device before the re-establishment procedure, and the second access network device is a corresponding access network device when the terminal device initiates the re-establishment procedure.

A network controller is provided for use with a client device. The network controller includes a memory and a processor configured to execute instructions stored on the memory. The instructions when executed by the processor cause the network controller to set a value of a steering delay based on a steering trigger type, transmit a steering request to steer the client device from a first BSS ID to a second BSS ID, determine whether the client device has steered from the first BSS ID to the second BSS ID during the steering delay measured from the transmission of the steering request, and in response to a determination that the client device has not steered from the first BSS ID to the second BSS ID during the steering delay, increase the value of the steering delay by an increase amount and again transmit the steering request.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a master node associated with a primary cell, a configuration for a conditional procedure for adding or changing a primary secondary cell (PSCell) associated with a secondary node. The UE may also receive, from the master node, a configuration for a handover procedure for the primary cell. The UE may transmit a report that includes information related to the conditional PSCell procedure, information related to the primary secondary cell, or both, based on a triggering order between the conditional PSCell procedure and the handover procedure.

A source base station determines that a wireless device is to be handed over from the source base station to a target base station and sends, to the target base station in a handover signaling message, a current mapping between two or more flow identifiers and a first data radio bearer used for communication between the wireless device and the source base station. The source base station receives, from the target base station, an indication that the current mapping is to be used and hands over the wireless device from the source base station to the target base station.

In a communication system with redundant paths which can ensure the reliability and maintain time-sensitive communications (TSC), a first host and a second host communicate through a plurality of communication paths. In the event of a past or current communication failure in any of the plurality of communication paths, mobility of communication terminals in communication paths other than the any of the plurality of communication paths is restricted.

A method for connecting user equipment (UE) to data network name (DNN) in public network integrated non-public network (NPN) is provided. The method includes identifying prioritized DNN and corresponding network slice, from list of prioritized DNNs and network slices, when UE (moves from first location to second location, where session management (SM) retry timer is enabled, disabling SM retry timer based on identification, evaluating user route selection policy (URSP) rule for connecting UE to prioritized DNN and corresponding network slice. Further, the disclosure relates to method receiving rejection cause when UE sends request to connect to higher priority DNN and via corresponding network slice, where SM retry timer is enabled, detecting inactivity of packet transmission for pre-determined time period, and evaluating URSP rule, where UE is connected to higher priority DNN, and corresponding network slice.