Embodiments of this application provide a data processing method and a related device, to effectively ensure that a terminal in the Narrowband Internet of Things can completely receive, after accessing a target base station, downlink data that is not completely received before handover or reselection, in other words, to effectively ensure that the downlink data of the terminal is not lost, thereby ensuring mobility of the terminal in connected mode. Technical solutions provided in the embodiments of this application are as follows: A core network device obtains a first indication message, where the first indication message is used to indicate that a terminal completes a cell change or a cell reselection. The core network device sends downlink data to a target base station, where the target base station is a base station to which the terminal is connected after completing the cell change or the cell reselection.

A control device configured to control communication between a terminal and a base station manages, concerning the communication, first information representing a part of a number corresponding to an order of a packet and held by each of the terminal and the base station and second information representing another part of the number corresponding to the order of the packet and transmitted from the terminal to the base station, determines whether the first information matches between the base station and the terminal, and controls the terminal to transmit a signal used to execute reconnection processing for resetting the number of the packet upon determining that the first information does not match between the base station and the terminal.

A method for localizing a voice call is disclosed, comprising: receiving an originating leg setup message for an originating leg bearer from the first base station for a first user equipment (UE); creating a first call correlation identifier and storing the first call correlation identifier in association with the first UE; extracting a second call correlation identifier from a terminating leg setup message for a terminating leg bearer received from the core network; determining a real time protocol (RTP) localization status for the originating leg bearer and the terminating leg bearer based on matching the second call correlation identifier of the terminating leg against the stored first call correlation identifier of the originating leg; and sending transport layer assignment messages to the first base station to redirect RTP packets from the first UE to the second UE via the terminating leg bearer without the RTP packets transiting the core network.

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.

A base station for wireless communication with a mobile station using a plurality of cells configured to be grouped so as to comprise a plurality of groups of cells. The base station includes: circuitry configured to transmit a first control signal having a first field and a second field, the first field including information indicating an amount of adjustment for the mobile station to use to adjust a transmission timing of the mobile station with one or more cells, and the second field being configured to store second information identifying the one or more cells among the plurality of groups of cells, and transmit a second control signal having a third field configured to include a unique identifier of one or more of the plurality of cells, according to which the second information set in the second field of the first control signal is applied to the mobile station.

A radio communication system, a first application server includes a communicator configured to transmit to and receive from a terminal apparatus individual data via a first base station apparatus, the first base station apparatus includes a first controller configured to request to a second base station apparatus first control information regarding to a second application server connected to the second base station apparatus and second control information for the terminal apparatus to connect to the second base station apparatus, and a transmitter configured to transmit to the terminal apparatus the second control information notified from the second base station apparatus, at least, the second base station apparatus includes a second controller configured to notify the first and second control information to the first base station apparatus, the terminal apparatus receives at least the second control information from the first base station apparatus.

The present application discloses a method for data forwarding in a small cell system, comprising: sending by a master base station (MeNB) to a target secondary base station (SeNB) information of a source SeNB or a source SeNB cell where a user equipment (UE) is located; determining by the target SeNB whether a direct data forwarding is feasible; notifying, by the target SeNB, the MeNB whether the direct data forwarding is feasible; and determining by the MeNB whether it is a direct data forwarding or an indirect data forwarding. The method for data forwarding provided in the present application may support both the direct data forwarding and the indirect data forwarding based on actual situation of the network, reduce data loss and failure of data forwarding, and improve the efficiency of data forwarding.

A wireless device may support a plurality of channel state information (CSI) processes. The wireless device may send an indication of a number of supported CSI processes to a first base station. The first base station may send to the wireless device a handover command, instructing the wireless device to handover to a second base station. The handover command may comprise configuration parameters for CSI processes associated with the second base station. The configuration parameters may be based on the number of CSI processes supported by the wireless device.

[Object] To make it possible to further increase a possibility of a success in a handover.

[Solution] A first apparatus of the present invention includes: a first communication processing unit configured to transmit reference signals using beamforming; and a second communication processing unit configured to receive a handover message from a source base station of a handover of a terminal apparatus. The handover message includes beam related information related to a beam. The first communication processing unit is configured to receive an access signal of the terminal apparatus based on the beam related information.

According to one aspect of the present disclosure, a method for handover in a radio access network is provided, wherein the method includes receiving, by a user equipment (UE), a handover pre-configuration message from a source node serving the UE in the radio access network, the handover pre-configuration message including handover information of a target node in the radio access network, receiving, by the UE, an activation command from the source node after receiving the handover pre-configuration message, and transmitting, by the UE, an access request message to the target node in accordance with the handover information in response to receiving the activation command.