Data transmission method, device, and system

    公开(公告)号:US11612013B2

    公开(公告)日:2023-03-21

    申请号:US16804515

    申请日:2020-02-28

    Inventor: Yong Hu Qi Yao

    Abstract: A data transmission method includes receiving, by a user plane function entity, a data packet from a first terminal through an uplink path corresponding to the first terminal, where the data packet carries addressing information of a second terminal; determining, by the user plane function entity based on information about the uplink path corresponding to the first terminal and the addressing information of the second terminal, a downlink path corresponding to the second terminal; and sending, by the user plane function entity, the data packet to the second terminal through the downlink path corresponding to the second terminal.

    Data Transmission Method, Device, and Data Transmission System

    公开(公告)号:US20220408503A1

    公开(公告)日:2022-12-22

    申请号:US17888668

    申请日:2022-08-16

    Inventor: Yong Hu Qi Yao

    Abstract: A data transmission method, a device, and a data transmission system implement local interaction between two terminals when the two terminals are served by different UPF entities. The method performed by a first user plane function entity includes receiving a data packet from a first terminal through an uplink path corresponding to the first terminal, where the data packet carries addressing information of a second terminal; determining path information of a second user plane function entity based on information about the uplink path corresponding to the first terminal and the addressing information of the second terminal; sending the data packet to the second user plane function entity based on the path information of the second user plane function entity; and sending the data packet to the second terminal through a downlink path corresponding to the second terminal.

    Network selection system and method for establishment of inter-networking session

    公开(公告)号:US11284341B2

    公开(公告)日:2022-03-22

    申请号:US17013127

    申请日:2020-09-04

    Inventor: Qi Yao Shufeng Shi

    Abstract: A network element selection method and apparatus, where the method includes: receiving, by a first network element in a first communications system, a first message from a terminal device, wherein the first message is used to request to establish a session; and in response to the first message, determining, by the first network element in the first communications system, a target session management function network element based on a capability of the terminal device and third subscription information of the terminal device. According to the method, a terminal device that supports a 4G system and a 5G system and that has no interworking requirement can properly select a network element.

    SESSION HANDLING METHOD, COMMUNICATIONS APPARATUS, AND COMMUNICATIONS SYSTEM

    公开(公告)号:US20220030069A1

    公开(公告)日:2022-01-27

    申请号:US17492609

    申请日:2021-10-03

    Inventor: Qi Yao Zaifeng Zong

    Abstract: This application provides a session handling method, a communications apparatus, and a communications system. The session handling method includes receiving, by an intermediate session management function (SMF), a request message sent by an access and mobility management function (AMF), where the request message includes a session identifier, and the intermediate SMF is an SMF selected by the AMF when user equipment (UE) moves outside of a service area of an anchor SMF. When a session corresponding to the session identifier is a local area data network (LADN) session, rejecting, by the intermediate SMF, the session corresponding to the session identifier. According to the technical solutions provided in this application, the user equipment can no longer access a service of a LADN after moving outside of the service area of the anchor SMF, which avoids a waste of service resources of the LADN.

    Session connection establishment method and control plane network element

    公开(公告)号:US11219073B2

    公开(公告)日:2022-01-04

    申请号:US16588266

    申请日:2019-09-30

    Inventor: Qi Yao Yong Hu

    Abstract: Embodiments of the application disclose a session connection establishment method and a control plane network element, to select a proper user plane network element from a plurality of distributed user plane network elements for a terminal device that requests a service. In one embodiment, the control plane network element may determine a first user plane network element set from a plurality of distributed user plane network elements based on a service, to select, from the first user plane network element set, a first target user plane network element that supports the service, and establish a session connection of a terminal device. According to the embodiment, a proper user plane network element can be selected from a plurality of distributed user plane network elements for a terminal device that requests a service, thereby improving working efficiency when the control plane network element establishes a session connection of the terminal device.

    Network selection system and method for establishment of inter-networking session

    公开(公告)号:US10856218B2

    公开(公告)日:2020-12-01

    申请号:US16584242

    申请日:2019-09-26

    Inventor: Qi Yao Shufeng Shi

    Abstract: A network element selection method and apparatus, where the method includes: receiving, by a first network element in a first communications system, a first message from a terminal device, wherein the first message is used to request to establish a session; and in response to the first message, determining, by the first network element in the first communications system, a target session management function network element based on a capability of the terminal device and third subscription information of the terminal device. According to the method, a terminal device that supports a 4G system and a 5G system and that has no interworking requirement can properly select a network element.

    Session management method and system, and device

    公开(公告)号:US12267883B2

    公开(公告)日:2025-04-01

    申请号:US16944691

    申请日:2020-07-31

    Abstract: A session management method includes obtaining, by a terminal, terminal media access control (MAC) address information related to an existing Ethernet session of the terminal. The method also includes determining, by the terminal based on the terminal MAC address information related to the existing Ethernet session of the terminal, that a new Ethernet session needs to be established for the terminal. The method further includes initiating, by the terminal, establishment of the new Ethernet session for the terminal.

    Route configuration method and apparatus

    公开(公告)号:US12256306B2

    公开(公告)日:2025-03-18

    申请号:US17854402

    申请日:2022-06-30

    Abstract: A route configuration method includes that after a first terminal moves out of a service scope of a user plane function (UPF) that currently provides a service for the first terminal, a first session management function (SMF) inserts a first intermediate UPF (I-UPF) into a user plane path of the first terminal, and configures, for the first I-UPF, a first routing rule corresponding to a second terminal. The first routing rule is used to send a packet whose destination address information is address information of the second terminal to a second anchor UPF (A-UPF). Therefore, a packet with a destination address information that is the address information of the second terminal can be directly forwarded by the first I-UPF to the first A-UPF, instead of being forwarded by the first I-UPF to the second A-UPF through the first A-UPF.

Patent Agency Ranking