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    Multicast service transmission method and apparatus
    1.
    发明授权
    Multicast service transmission method and apparatus 有权

    公开(公告)号：US12192589B2

    公开(公告)日：2025-01-07

    申请号：US17892119

    申请日：2022-08-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jianxin Jia ,  Wenfu Wu ,  Zaifeng Zong

    IPC: H04N21/6405 ,  H04N21/266 ,  H04N21/6408

    Abstract: This application provides a multicast service transmission method and apparatus, to deliver a multicast service regardless of whether there is a device supporting multicast in a system, so as to improve flexibility and reliability of the multicast service transmission. The method performed by a session management network element includes: receiving a first message or a second message, where the first message requests to add a terminal device to a multicast service, the second message is used to update a PDU session of the terminal device, and the PDU session is associated with the multicast service; and determining, based on multicast capability information of the terminal device and/or multicast capability information of an access network device, a delivery mode of the multicast service, where the access network device is an access network device currently accessed by the terminal device or a target access network device of the terminal device.

    Communication method, device, and system
    3.
    发明授权
    Communication method, device, and system 有权

    公开(公告)号：US12058561B2

    公开(公告)日：2024-08-06

    申请号：US18213368

    申请日：2023-06-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chunxiang Yan ,  Youyang Yu ,  Wenfu Wu

    IPC: H04W28/02 ,  H04L45/00 ,  H04L45/74 ,  H04W28/10

    CPC classification number: H04W28/0268 ,  H04L45/38 ,  H04L45/74 ,  H04W28/10

    Abstract: Embodiments of this application provide a communication method, a device, and a system, to resolve an out-of-order problem caused by per-packet traffic splitting. The method includes: determining, by a sending device, a sequence identifier of a to-be-transmitted data packet and an identifier of a first link for transmitting the data packet; and sending, by the sending device, the data packet to a receiving device, where a header of the data packet includes the identifier of the first link and the sequence identifier, the identifier of the first link is used to identify the first link, and the sequence identifier is used to identify a sending order of the data packet over the first link or in a link group to which the first link belongs.

    Virtual network communication method, device, and system
    4.
    发明授权
    Virtual network communication method, device, and system 有权

    公开(公告)号：US12015503B2

    公开(公告)日：2024-06-18

    申请号：US17526339

    申请日：2021-11-15

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Qi Yao ,  Wenyong Han ,  Wenfu Wu ,  Qianghua Zhu ,  Chunsheng Xie

    IPC: H04L12/46 ,  H04W76/10

    CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04W76/10

    Abstract: Embodiments of this application provide a device and a system of a virtual network service across session management network elements. A group session management network element obtains tunnel information of a first user plane network element serving a first terminal device belonging to a first virtual network group, sends a first message to a second session management network element, where the first message includes an identifier of the first terminal device, an identifier of the first virtual network group, and the tunnel information of the first user plane network element for configuring a first forwarding rule on a second user plane network element, and the first forwarding rule is used by the second user plane network element to send a first data packet to the first user plane network element when one terminal device belonging to the first virtual network group sends the first data packet to the first terminal device.

    Managing user plane entities at different locations in a PDU session
    6.
    发明授权
    Managing user plane entities at different locations in a PDU session 有权

    公开(公告)号：US11706704B2

    公开(公告)日：2023-07-18

    申请号：US16664481

    申请日：2019-10-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Fenqin Zhu ,  Wenfu Wu

    IPC: H04W48/18 ,  H04W76/10 ,  H04L45/00 ,  H04W64/00 ,  H04W72/51 ,  H04W80/02

    CPC classification number: H04W48/18 ,  H04L45/72 ,  H04W64/00 ,  H04W72/51 ,  H04W76/10 ,  H04W80/02

    Abstract: This application discloses a session management method, a network device, and a communications system. According to embodiments of the present invention, an intermediate session management entity is selected based on UE location information and PDU session requirement information. In this way, an intermediate session management entity near UE can provide a service for a PDU session, and a delay of data transmission is reduced. In addition, the intermediate session management entity selects a user plane entity based on the UE location information and the PDU requirement information, and the intermediate session management entity is responsible for managing user plane entities within a specified area, and does not need to manage user plane entities in the entire PDU session, thereby reducing management complexity.

    WLAN access method and apparatus
    7.
    发明授权
    WLAN access method and apparatus 有权

    公开(公告)号：US11611932B2

    公开(公告)日：2023-03-21

    申请号：US17178419

    申请日：2021-02-18

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Wenfu Wu ,  Yan Li

    IPC: H04W4/00 ,  H04W48/20 ,  H04W48/16 ,  H04W84/12

    Abstract: The present application provides a WLAN access method. The method includes: obtaining an access location of a UE; obtaining AP access information of the UE at the access location; selecting an AP according to the obtained AP access information to access a WLAN; and sending AP access information of the selected AP to the UE. The present application further provides another WLAN access method and a corresponding apparatus.

    Communication method and communications apparatus
    9.
    发明授权
    Communication method and communications apparatus 有权

    公开(公告)号：US11528761B2

    公开(公告)日：2022-12-13

    申请号：US16928636

    申请日：2020-07-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zaifeng Zong ,  Wenfu Wu ,  Fenqin Zhu

    IPC: H04W76/12 ,  H04W76/22 ,  H04W8/02 ,  H04W64/00

    Abstract: A communication method and a communications apparatus, wherein the communication method includes: receiving, by a network repository network element, a first request message from a mobility management network element, where the first request message carries a data network name of a session that a terminal device requests to establish; determining, by the network repository network element based on the first request message, at least one target session management network element from session management network elements that support the data network name; and sending, by the network repository network element, an identifier of the at least one target session management network element to the mobility management network element, such that a session management network element can be selected to provide a service for a terminal device.

    COMMUNICATION METHOD AND APPARATUS, AND DEVICE
    10.
    发明申请
    COMMUNICATION METHOD AND APPARATUS, AND DEVICE 有权

    公开(公告)号：US20220311569A1

    公开(公告)日：2022-09-29

    申请号：US17837961

    申请日：2022-06-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chengchen Zhang ,  Hui Ding ,  Wenfu Wu

    IPC: H04L5/00

    Abstract: Embodiments of this application provide a communication method and apparatus, and a device. The method includes: A network device determines first user slice information of a first user. The network device sends the first user slice information to a terminal device, where the terminal device is a terminal device used by the first user, and a user slice indicated by the first user slice information is a user slice used by the first user. This improves flexibility of performing communication by using a network slice.

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