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    Discovery method and device
    111.
    发明授权
    Discovery method and device 有权

    公开(公告)号：US10516987B2

    公开(公告)日：2019-12-24

    申请号：US15812859

    申请日：2017-11-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yizhuang Wu ,  Yanmei Yang

    IPC: H04W8/00 ,  H04W76/14 ,  H04W72/04 ,  H04W84/18 ,  H04W92/18 ,  H04W4/10 ,  H04L5/00 ,  H04W84/08 ,  H04W76/45

    Abstract: The present invention discloses a discovery method and device, and relates to the field of wireless communications technologies, to resolve a problem that existing two communication parties cannot accurately discover each other, and then it cannot be ensured that the two communication parties perform service communication in a Prose manner. The method provided in the present invention includes: sending a discovery message, where the discovery message includes application layer identifier information of a discovery target, and the discovery target is at least one target user or at least one communications group of a first user that uses the first MCPTT UE; and receiving a response message sent by second MCPTT UE, where the response message includes a layer 2 identifier of the second MCPTT UE and an application layer identifier of a user that uses the second MCPTT UE.

    Certificate Notification Method and Apparatus
    112.
    发明申请
    Certificate Notification Method and Apparatus 审中-公开

    公开(公告)号：US20190081802A1

    公开(公告)日：2019-03-14

    申请号：US16178955

    申请日：2018-11-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jiangwei Ying ,  Yanmei Yang ,  Jing Chen ,  Qi Li

    IPC: H04L9/32 ,  H04L9/30

    CPC classification number: H04L9/3268 ,  H04L9/30 ,  H04L9/3247 ,  H04L9/3263 ,  H04L63/0823 ,  H04L2209/80 ,  H04L2209/84 ,  H04W12/0609

    Abstract: A certificate notification method, including reporting a certificate of a first terminal to a server, obtaining public key maintenance information including a public key corresponding to a certificate of each of one or more terminals within a preset area range and certificate identification information corresponding to the certificate of the corresponding terminal, receiving a communication message including certificate identification information corresponding to a certificate of the second terminal and a signature generated by the second terminal, determining, according to certificate identification information and the public key maintenance information, a public key corresponding to the certificate of the second terminal, and verifying, according to the public key corresponding to the certificate of the second terminal, the signature generated by the second terminal.

    METHOD, APPARATUS, AND SYSTEM FOR PREVENTING ABUSE OF AUTHENTICATION VECTOR
    114.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR PREVENTING ABUSE OF AUTHENTICATION VECTOR 审中-公开
    用于防止认证向量滥用的方法，装置和系统

    公开(公告)号：US20140053249A1

    公开(公告)日：2014-02-20

    申请号：US14062602

    申请日：2013-10-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yanmei Yang ,  Yixian Xu ,  Jing Chen

    IPC: H04W12/04

    CPC classification number: H04W12/04 ,  H04W12/04031 ,  H04W12/10 ,  H04W12/12 ,  H04W12/1208

    Abstract: A method for preventing abuse of an Authentication Vector (AV) and a system and apparatus for implementing the method are provided. Access network information of a non-3rd Generation Partnership Project (3GPP) access network where a user resides is bound to an AV of the user, so that when the user accesses an Evolved Packet System (EPS) through the non-3GPP access network, even if an entity in the non-3GPP access network is breached, or an Evolved Packet Data Gateway (ePDG) connected to an untrusted non-3GPP access network is breached, the stolen AV cannot be applied to other non-3GPP access networks by an attacker.

    Abstract translation: 提供了防止认证向量（AV）的滥用的方法以及用于实现该方法的系统和装置。 用户驻留的非第三代合作伙伴计划（3GPP）接入网络的接入网络信息被绑定到用户的AV，使得当用户通过非3GPP接入网络访问演进分组系统（EPS）时， 即使违反非3GPP接入网络中的实体，或者违反连接到非信任非3GPP接入网络的演进分组数据网关（ePDG），则被盗AV不能通过以下方式应用于其他非3GPP接入网络 攻击者

    COMMUNICATION METHOD, APPARATUS, AND DEVICE
    116.
    发明公开
    COMMUNICATION METHOD, APPARATUS, AND DEVICE 审中-公开

    公开(公告)号：US20240267247A1

    公开(公告)日：2024-08-08

    申请号：US18639900

    申请日：2024-04-18

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Cuili Ge ,  Meng Li ,  Yanmei Yang

    IPC: H04L12/18 ,  H04W88/06

    CPC classification number: H04L12/1868 ,  H04L12/189 ,  H04W88/06

    Abstract: This application discloses a communication method, an apparatus, and a device, to ensure continuity of service transmission. The method includes: An AS sends a service data packet of a first service to a terminal device over a multicast session. When a condition for the terminal device to perform inter-communication system switching is met or the terminal device performs the inter-communication system switching, the terminal device may send first information to trigger the AS to send the service data packet of the first service to the terminal device in a unicast transmission mode. In this way, an inter-communication system switching procedure of the terminal device does not affect transmission of the first service of the terminal device, to ensure continuity of service transmission.

    Method and device for accessing a network
    118.
    发明授权
    Method and device for accessing a network 有权

    公开(公告)号：US11962998B2

    公开(公告)日：2024-04-16

    申请号：US17192156

    申请日：2021-03-04

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yanmei Yang ,  Jiangwei Ying

    IPC: H04W12/06 ,  H04L9/40 ,  H04W8/08 ,  H04W8/20 ,  H04W12/02 ,  H04W36/00 ,  H04W48/14 ,  H04W48/18 ,  H04W60/00 ,  H04W88/06

    CPC classification number: H04W12/02 ,  H04W8/08 ,  H04W8/20 ,  H04W12/06 ,  H04W48/14

    Abstract: This application relates to the field of wireless communications technologies, and provides a communication method, including: receiving, by a mobility management network element, first information from a terminal device; obtaining a user equipment context of the terminal device in a public network and a user equipment context of the terminal device in a private network based on the first information; and using the user equipment context of the terminal device in the public network and the user equipment context of the terminal device in the private network as a user equipment context of the terminal device. According to the solution provided in embodiments, the user equipment context of the terminal device includes the user equipment context in the public network and the user equipment context in the private network, so that the terminal device can access both the public network and the private network, thereby improving user experience.

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