Embodiments of this application provide a key generation method and a related device. The method includes: receiving, by a terminal, a first message sent by a source base station, where the first message includes a key exchange algorithm selected by a target base station and a first public key generated by the target base station; generating, by the terminal, a first shared key based on the key exchange algorithm, the first public key, and a first private key generated by the terminal; and sending, by the terminal, a second message to the target base station, where the second message includes a second public key generated by the terminal. According to the embodiments of this application, a communication latency and network load can be reduced while communication security is ensured.

A base station may communicate with one or more other base stations. A first base station may hand over one or more wireless devices served by its cell to a second base station (e.g., a neighboring base station), for example, to save overall energy consumption in the network. Feedback information (e.g., one or more messages) associated with performance of the second base station after the handover may be provided by the second base station to the first base station help further decision-making related to handing over other wireless device(s).

This document relates to a method of dynamic switch indication. A method of wireless communication comprising: transmitting, by a network device, to a wireless communication device, a first parameter indicated by a first signaling message; transmitting, by a network device, to a wireless communication device, a plurality of transmission configuration states by a second signaling message; determining, by the wireless communication device, the plurality of transmission configuration states to a transmission; wherein the plurality of transmission configuration states include transmission configuration indicator (TCI) states.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a user (UE) in a wireless communication system according to an embodiment of the disclosure may include receiving a radio resource control (RRC) message including information related to a target cell for a handover, valid condition information of the target cell, and information indicating a handover type from a base station, receiving information related to turnoff of a serving cell from the base station, and performing the handover, based on configuration information regarding the target cell and valid condition information of the target cell.

Systems, methods, apparatuses, and computer program products for prioritized random access during handover are provided. One method may include transmitting, by a source network node, a handover request to a target network node. The handover request may include an indication of a recognition of prioritized random access for a user equipment. The method may also include receiving an acknowledgement from the target network node, building a reconfiguration message, for the user equipment, comprising a prioritized set of random access parameters, and transmitting, to the user equipment, the reconfiguration message comprising the prioritized set of random access parameters.

The first circuitry may be operable to establish a first UE Receive (Rx) beam as being for reception of data from a first eNB. The second circuitry may be operable to process a transmission including Downlink Control Information (DCI), wherein the DCI carries an eNB cell-switching indicator. The first circuitry may also be operable to establish a second UE Rx beam as being for reception of data from a second eNB based on the eNB cell-switching indicator.

A system, method and apparatus for wireless communications is provided. A user equipment (UE) receives, from a first base station, one or more first messages that include measurement configuration parameters and sidelink parameters associated with a first cell. The UE establishes a sidelink with a second UE based on the sidelink parameters and transmits, to the first base station, a measurement report based on the measurement configuration parameters. Responsive to the measurement report, the UE receives a second message comprising second configuration parameters of a second cell of a second base station. The second configuration parameters do not comprise sidelink parameters. The UE then switches from the first cell of the first base station to the second cell of the second base station. The sidelink of the first cell is handed over to an uplink of the second cell.

A radio access network (RAN) node (11) is configured to send, to another RAN node (12), first control information regarding at least one of one or more bandwidth parts (BWPs) configured in a system bandwidth. It is thus, for example, possible to contribute to inter-radio access network (RAN) node (e.g., inter-gNB) signaling enhanced to handle bandwidth parts.

The present application discloses an information transmission method, an information transmission apparatus, a first access network device, a second access network device, a terminal and a storage medium, where the method includes: sending, by a first access network device, a connection release message to a terminal; sending at least one of the following information to at least one second access network device: first information, where the first information indicates a radio access network (RAN) notification area configuration of the terminal; second information, where the second information indicates the second access network device to disconnect from the terminal; third information, where the third information indicates an identifier of the terminal.

A security configuration method in a handover scenario and a communication apparatus are provided. The method includes that a target access network node receives a first message including first information indicating a terminal device to be handed over from a source access network node to the target access network node, and indicating to use a user plane security configuration that is of a data radio bearer and that is the same as that of a data radio bearer of the source access network node. The target access network node sends a response message of the first message. The response message includes second information indicating a user plane security configuration of a second data radio bearer of the target access network node, which is the same as a user plane security configuration of a first data radio bearer of the source access network node.