Apparatus and method for supporting handover in a wireless communication system

    公开(公告)号:US12231964B2

    公开(公告)日:2025-02-18

    申请号:US18330744

    申请日:2023-06-07

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention provides a method for supporting handover, comprising the steps of: informing, by a source base station, a core network whether a direct data forwarding path is available; deciding, by the core network, whether to use direct data forwarding or indirect data forwarding; informing, by the core network, a target base station of information about the direct data forwarding or indirect data forwarding; allocating, by the target base station, data forwarding tunnel information, the target base station allocating the data forwarding tunnel information according to the received information about the direct data forwarding or indirect data forwarding; transmitting, by the target base station, the allocated data forwarding tunnel information to the core network; and informing, by the core network, the source base station of the data forwarding tunnel information. With the present invention, different data forwarding methods are supported to prevent data loss and ensure service continuity.

    Method and apparatus for handover
    63.
    发明授权

    公开(公告)号:US12212955B2

    公开(公告)日:2025-01-28

    申请号:US17761359

    申请日:2020-09-25

    Abstract: The embodiments of present application provide a method and device for handover, wherein, the method includes: receiving a configuration message transmitted by a second node to support the first node for handover, wherein, the first node includes any one of a relay node, a mobile terminal part of the relay node, and a distributed unit of the relay node, and the second node includes any one of an anchor node, and a central unit of the anchor node; and configuring the first node according to the configuration message transmitted by the second node. The method provided in the present application achieves the effect of updating the configuration of the first node during the handover of the first node when moving, so that the relay node may continuously provide service for a user equipment accessing the first node.

    Method and apparatus for configuring a relay node

    公开(公告)号:US12192816B2

    公开(公告)日:2025-01-07

    申请号:US18341167

    申请日:2023-06-26

    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The disclosure provides a method and apparatus for configuring a relay node. A first node transmits to a second node a message that carries information on a radio bearer for a user accessing the second node. Configuration of the radio bearer for data transmission in a multi-hop network is realized through the above method and apparatus.

    Communication method, apparatus, electronic device and computer readable storage medium

    公开(公告)号:US11997528B2

    公开(公告)日:2024-05-28

    申请号:US17507038

    申请日:2021-10-21

    CPC classification number: H04W28/0242 H04W28/04 H04W28/06

    Abstract: The disclosure relates to a pre-5th generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th generation (4G) communication system such as long term evolution (LTE). a communication method, apparatus, electronic device, and computer-readable storage medium, and relate to the field of wireless communication technology are provided. The method may be executed by the first node, and may include receiving a first message transmitted by a second node, wherein the first message is used by the first node to configure transmission and/or storage of a user data packet. Based on the solution provided by the embodiments of the disclosure, it may effectively improve one or more of the following problems: data packet loss, network resource waste, transmission failure and the like that may be caused by the migration of relay nodes in the network.

    Method for supporting handover in mobile communication network

    公开(公告)号:US11963050B2

    公开(公告)日:2024-04-16

    申请号:US18169108

    申请日:2023-02-14

    CPC classification number: H04W36/0069 H04W36/0033 H04W36/0066 H04W36/08

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to embodiments, an access and mobility management function (AMF) comprises at least one transceiver; and at least one processor, wherein the at least one processor is configured to receive, a mobility management entity (MME) for an evolved node B (eNB), a message associated with a handover required message for an inter-system handover from an evolved packet system (EPS) to 5G system (5GS) with a secondary gNB (SgNB) used as a target next generation node B (gNB), wherein the SgNB and the target gNB are co-located and the eNB is associated with the SgNB in a dual connectivity; transmit, to the target gNB, a handover request message for the inter-system handover from the EPS to 5GS with the SgNB used as the target gNB; and receive, from the target gNB, an acknowledge of the handover request message. The handover required message includes an SgNB user equipment (UE) X2 application protocol ID (SgNB UE X2AP ID) for identifying a UE over X2 interface in the SgNB. The handover request message includes the SgNB UE X2AP ID, and the SgNB UE X2AP ID is allocated at the SgNB.

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