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    PCF Determining Method, Apparatus, and System
    41.
    发明申请
    PCF Determining Method, Apparatus, and System 有权

    公开(公告)号：US20210360379A1

    公开(公告)日：2021-11-18

    申请号：US17334233

    申请日：2021-05-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yizhuang Wu ,  Chunshan Xiong ,  Haiyang Sun

    IPC: H04W8/14 ,  H04W28/06

    Abstract: Embodiments of the present application relate to the field of communications technologies, and provide a PCF determining method, an apparatus, and a system. The method includes: receiving, by a first AMF, PCF identification information sent by a second AMF, and obtaining, by the first AMF, policy information from a target PCF when at least one PCF corresponding to the PCF identification information includes the target PCF, where the PCF identification information includes identification information of at least one first PCF, the identification information of the first PCF includes at least one of an IP address of the first PCF, an IP prefix of the first PCF, and an FQDN of the first PCF, the first AMF is an AMF providing a service for the terminal to access a network this time, and the second AMF is an AMF providing a service for the terminal to access a network last time.

    GTP-U downlink packet sending method and apparatus
    43.
    发明授权
    GTP-U downlink packet sending method and apparatus 有权

    公开(公告)号：US10608842B2

    公开(公告)日：2020-03-31

    申请号：US15897589

    申请日：2018-02-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaoyan Shi ,  Chunshan Xiong

    IPC: H04L12/46 ,  H04W4/18 ,  H04W80/04 ,  H04W76/12 ,  H04W76/11 ,  H04L29/12 ,  H04W36/00 ,  H04W92/12 ,  H04W92/14 ,  H04W8/10 ,  H04W8/26

    Abstract: Embodiments of the present disclosure provide a GTP-U downlink packet sending method and apparatus. The method includes: receiving, by a MEC platform, a GTP-U uplink packet sent by a base station device; obtaining, by the MEC platform, a TEID of the base station device according to the GTP-U uplink packet; and sending, by the MEC platform, a GTP-U downlink packet to the base station device, where the GTP-U downlink packet includes the TEID of the base station device. By using the technical solutions of the embodiments of the present disclosure, after receiving the GTP-U uplink packet sent by the base station device, the MEC platform can obtain the TEID of the base station device according to the GTP-U uplink packet, and therefore, can correctly perform GTP-U encapsulation, and send the GTP-U downlink packet to the base station device.

    Apparatus, system, and method for preventing TCP connection interruption
    45.
    发明授权
    Apparatus, system, and method for preventing TCP connection interruption 有权

    公开(公告)号：US10425868B2

    公开(公告)日：2019-09-24

    申请号：US15625404

    申请日：2017-06-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chunshan Xiong ,  Anni Wei

    IPC: H04W4/00 ,  H04W36/02 ,  H04L29/08 ,  H04W80/06 ,  H04W36/00

    Abstract: The present invention provides an apparatus, a system, and a method for preventing TCP connection interruption. The apparatus determines that user equipment UE needs cell handover; and the apparatus sends a first instruction message to a server, where the first instruction message is used to instruct the server to stop sending downlink data to the proxy device, and sends cached downlink data to the UE. Therefore, the following problem is avoided: After UE is disconnected from a source cell and is connected to a new cell, because the UE does not receive partial downlink data cached by a TCP proxy or because partial cached data is lost, the UE initiates retransmission to a server, but the server does not retransmit an acknowledged packet according to a TCP protocol, causing TCP connection interruption and service interruption.

    Control Method and Apparatus for Load Transmission
    46.
    发明申请
    Control Method and Apparatus for Load Transmission 审中-公开

    公开(公告)号：US20190289499A1

    公开(公告)日：2019-09-19

    申请号：US16256061

    申请日：2019-01-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haitao Xia ,  Chunshan Xiong ,  Weihua Qiao

    IPC: H04W28/08 ,  H04W28/02 ,  H04L29/08 ,  H04L29/06

    Abstract: A control method and apparatus for load transmission is provided. The control method includes: receiving a trigger event reported by a proxy server, where the trigger event includes a first transmission delay of a first member transmission path and a second transmission delay of a second member transmission path, and reporting the trigger event when one of the first and the second transmission delays is greater than a first delay threshold, The method also includes initiating a request to a packet data network gateway and obtaining network information fed back by the packet data network gateway. The method also includes controlling, according to the first transmission delay, the second transmission delay, and the network information, the proxy server to perform corresponding load distribution.

    Service data cache processing method and system and device
    47.
    发明授权
    Service data cache processing method and system and device 有权

    公开(公告)号：US10257306B2

    公开(公告)日：2019-04-09

    申请号：US14656416

    申请日：2015-03-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Anni Wei ,  Chunshan Xiong

    IPC: G06F15/173 ,  H04L29/08

    Abstract: Embodiments of the present invention provide a service data cache processing method and system and a device. The method includes receiving statistical information of service data and sending a service data push request to a service provider SP device according to the statistical information, so that the SP device sends service data to a primary cache deployed in a core network or an edge cache deployed in an access network.

    Data Packet Sending Method, Mobile Router, and Network Device
    49.
    发明申请
    Data Packet Sending Method, Mobile Router, and Network Device 审中-公开

    公开(公告)号：US20190097916A1

    公开(公告)日：2019-03-28

    申请号：US16203300

    申请日：2018-11-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chunshan Xiong ,  Jianning Liu

    IPC: H04L12/721 ,  H04L12/741 ,  H04L12/64 ,  H04L12/707

    Abstract: A data packet sending method including obtaining a first data packet from a first home address and sent by a mobile node, determining, according to routing control policy information, whether to enable routing control for the first data packet, backing up the first data packet, in response to determining to enable routing control for the first data packet, sending a backup first data packet to a designated routing node according to the home address status information in the routing control policy information, and sending the first data packet to a destination node via a current mobile router of the destination node through a tunnel with the current mobile router of the destination node.

    Method and terminal for message verification
    50.
    发明授权
    Method and terminal for message verification 有权

    公开(公告)号：US10218513B2

    公开(公告)日：2019-02-26

    申请号：US14707484

    申请日：2015-05-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaoyu Bi ,  Jing Chen ,  Yixian Xu ,  Chunshan Xiong

    IPC: H04L9/32 ,  H04W12/10 ,  H04L9/30 ,  H04L29/06 ,  H04W4/90

    Abstract: Embodiments of the present invention provide a method and a terminal for message verification, which can enhance timeliness of event message verification. The method includes: receiving an event message sent by a cell broadcast entity; obtaining a public key of a CA according to pre-configured information for determining the public key of the CA and information for determining the public key of the CA and obtained from a network side, or according to information of the CA obtained from the network side; then, obtaining a public key of the cell broadcast entity according to the obtained public key of the CA and an implicit certificate of the cell broadcast entity; verifying a signature of the cell broadcast entity over the event message according to the public key of the cell broadcast entity; and finally, determining legitimacy of the event message according to the verification result.

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