An apparatus is provided which includes a first connection unit configured to provide connection to a user equipment, and a processor configured to detect whether a handover of the user equipment is required, and, if a handover is required, to establish mobility information regarding the mobility state of the apparatus as mobility information of the user equipment, and to send the mobility information to at least one network element involved in the handover of the user equipment.

Embodiments of this application disclose a communication method, apparatus, and system. An example communication method includes: receiving, by an access network device from an access and mobility management function network element, information indicating to activate a multicast session corresponding to a multicast service; and sending, by the access network device based on the information, a paging message to a terminal in a radio resource control_inactive (RRC_inactive) state in the multicast session corresponding to the multicast service.

An information transmission method includes obtaining assistance information related to a multicast broadcast service; and determining a priority of a cell reselection frequency based on the assistance information.

A communication control method is used in a mobile communication system for providing a multicast broadcast service (MBS). The communication control method includes transmitting, by a base station, MBS data to user equipment in a first cell, transmitting, by the base station to the user equipment, a notification message indicating that an MBS cell being a cell used to transmit or receive the MBS data is to be changed from the first cell to a second cell, and receiving, by the user equipment configured to receive the MBS data from the base station, the notification message from the base station.

A method for enabling a user terminal to receive packet data in a mobile communication system supporting a packet data service. In the method, a radio network controller receives a session start message from a core network, determines whether or not a frequency area (FA) including the user equipment supports the MBMS service, and transmits a notification message, which contains cell reselection information used when the user equipment moves into an FA supporting the MBMS service, to the user equipment when the user equipment is located in an FA, which does not support the MBMS service.

A communication control method is used in a mobile communication system for providing a multicast broadcast service (NBS) on a per zone basis, the zone being narrower than a cell. The communication control method includes broadcasting, by a base station configured to manage a first cell, in the first cell, system information including zone information indicating a zone where MBS transmission is to be performed in a second cell different from the first cell, receiving, by a user equipment located in the first cell, the system information, and performing, by the user equipment, a predetermined operation to receive MBS data within the zone based on the system information.

A communication control method is used in a mobile communication system for providing a multicast broadcast service (MBS) from a base station to a user equipment, and includes transmitting, by the base station configured to manage a cell, to the user equipment via an MBS control channel of the cell, MBS control information used to receive MBS data, and transmitting, by the base station to the user equipment, a control area identifier indicating an MBS control area coverage corresponding to an area coverage where at least a part of the MBS control information is applicable.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a broadcast multicast service center (BMSC) device may receive, from a user equipment (UE) and via a first base station associated with a first radio access technology (RAT), a request for evolved multicast broadcast multimedia service (eMBMS) content. The BMSC device may transmit, to an access and mobility management function (AMF) device, a redirection request or a handover request, associated with the UE, from the first base station to a second base station associated with a second RAT. The BMSC device may transmit, to the UE and based at least in part on the UE being redirected or handed over to the second base station, the eMBMS content via the second base station. Numerous other aspects are provided.

Disclosed in the present invention are a method and an apparatus for device handover, which belongs to the mobile communication field. The method comprises the following steps: obtaining a Multimedia Broadcast Multicast Service (MBMS) service configuration information of neighbor cells; selecting a target cell for a user equipment according to the MBMS service configuration information of the neighbor cells and the MBMS service reception information of the user equipment; handing over the user equipment to the target cell. The apparatus comprises: an acquiring module, for obtaining the Multimedia Broadcast Multicast Service (MBMS) service configuration information of the neighbor cells; a selecting module, for selecting a target cell for a user equipment according to the MBMS service configuration information of the neighbor cells and the MBMS service reception information of the user equipment; a handover module, for handing over the user equipment to the target cell. With the implementation of the technical solution that the MBMS service configuration information of the neighbor cells is obtained, the target cell for the user equipment is selected according to the MBMS service configuration information and the MBMS service reception information of the user equipment, and the user equipment is handed over to the target cell, the present invention enables the user equipment to switch to an appropriate target cell.

There is provided a method, including requesting, by a network element of a macro cell network infrastructure, a local cell access point operating within the macro cell to either activate or deactivate a local cell control plane with respect to active user equipment of the local cell, wherein the local cell access point continues to provide a user plane to the active user equipment; and receiving a response to the request.