Packet delay parameter obtaining method, system, and apparatus

    公开(公告)号:US11811670B2

    公开(公告)日:2023-11-07

    申请号:US17485169

    申请日:2021-09-24

    Inventor: Haiyang Sun Yan Li

    Abstract: A packet delay parameter obtaining method, apparatus, and system are provided. The method provides a session management network element determines whether a first QoS flow satisfying a parameter condition exists, where the first parameter indicates information corresponding to a PSA UPF transmitting the first QoS flow, the first parameter indicating information corresponding to a PSA UPF transmitting the first service flow. If no first QoS flow satisfying the parameter condition exists, a second QoS flow for the first service flow is established, and the session management network element sends a first message to an access network element, the first message including identification information of the second QoS flow and a packet delay parameter corresponding to the second QoS flow.

    Communication Method and Communications Apparatus

    公开(公告)号:US20230328640A1

    公开(公告)日:2023-10-12

    申请号:US18325686

    申请日:2023-05-30

    CPC classification number: H04W48/18 H04W8/12 H04W84/042 H04W84/12

    Abstract: A communication method includes sending, by a source mobility management network element in a first area, a first slice set for a home public land mobile network (PLMN) (HPLMN) of a terminal device to a target mobility management network element in a second area when handing over the terminal device from a source access network device in the first area to a target access network device in the second area, where the first slice set corresponds to a second slice set for the first area, and obtaining, by the target mobility management network element, a third slice set for the second area based on the first slice set.

    Transmission control method, apparatus, and system

    公开(公告)号:US11729686B2

    公开(公告)日:2023-08-15

    申请号:US17729743

    申请日:2022-04-26

    Abstract: In a re-allocation process of a first user plane function network element to a second user plane function network element, a session management function network element sends a respective session modification request to each anchor user plane function network element of a plurality of anchor user plane function network elements, where each session modification request includes information about the second user plane function network element; and indicates to only a first anchor user plane function network element in the plurality of anchor user plane function network elements to send an end marker; or sends the end marker to only the first anchor user plane function network element.

    Packet transmission method, communication apparatus, and communication system

    公开(公告)号:US11722574B2

    公开(公告)日:2023-08-08

    申请号:US17827539

    申请日:2022-05-27

    Inventor: Fang Yu Yan Li Ao Lei

    CPC classification number: H04L67/148 H04L63/0281 H04L63/166 H04L69/14

    Abstract: Embodiments of this application provide a packet transmission method, a communication apparatus, and a communication system. A target transport layer proxy network element establishes a fourth transport layer connection based on a first context of a source transport layer proxy network element, where the first context is a context about packet transmission of the source transport layer proxy network element on a first path. If the target transport layer proxy network element receives first indication information, and the first indication information indicates that application context migration between a first application server and a second application server is completed, the target transport layer proxy network element performs transport layer processing on a packet on a second path based on a second context of the target transport layer proxy network element, and transmits, on the second path, a packet obtained through the transport layer processing. Hence, a packet loss can be avoided.

    Domain name system query method and communication apparatus

    公开(公告)号:US11689496B2

    公开(公告)日:2023-06-27

    申请号:US17675301

    申请日:2022-02-18

    CPC classification number: H04L61/4511 H04L61/5007 H04L67/141 H04L67/146

    Abstract: A domain name system query method in which: a first network element receives a DNS query request including a first domain name from a terminal apparatus; the first network element sends first request information which comprises location information of the terminal apparatus and the first domain name to a second network element; the second network element determines, based on the first request information, an IP address and feeds back the IP address to the first network element; and the first network element sends the IP address to the terminal apparatus. When a terminal apparatus performs domain name query, a core network element determines an IP address of an application server based on location information of the terminal apparatus and a queried domain name. In this way, the terminal apparatus obtains an IP address of an application server close to the terminal apparatus, thereby improving service access efficiency of the terminal apparatus.

    Service packet transmission method and apparatus

    公开(公告)号:US11677492B2

    公开(公告)日:2023-06-13

    申请号:US17561190

    申请日:2021-12-23

    CPC classification number: H04L1/0006 H04L1/0015

    Abstract: A service packet transmission method and apparatus, the method including receiving, by the source mobile edge computing network element, after a source mobile edge computing network element receives a second uplink service packet, a first uplink service packet sent by a source user plane network element and that is from a target user plane network element, where the second uplink service packet is the last uplink service packet sent by the source mobile edge computing network element to a source application server, sending, by the source mobile edge computing network element, the first uplink service packet to a target mobile edge computing network element, and sending, by the source mobile edge computing network element, first indication information to the target mobile edge computing network element, the first indication information indicating that the sending of the first uplink service packet by the source mobile edge computing network element ends.

    User plane gateway updating method and apparatus

    公开(公告)号:US11576030B2

    公开(公告)日:2023-02-07

    申请号:US17360877

    申请日:2021-06-28

    Abstract: The present disclosure provides a user plane gateway updating method and apparatus, so as to resolve a prior-art technical problem that GW-U updating cannot be implemented when neither an MME nor a GW-C changes. Embodiments of the present disclosure provide four different solutions, for purposes of being compatible with an existing implementation mechanism and improving system efficiency, when a UE performs TAU, an EPS system of a distributed gateway can select, according to a current location of the UE, a best GW-U and re-establish a PDN connection, thereby optimizing a data transmission path and ensuring communication performance.

    Communication method and communications apparatus

    公开(公告)号:US11570665B2

    公开(公告)日:2023-01-31

    申请号:US17133031

    申请日:2020-12-23

    Inventor: Fang Yu Yan Li Hui Ni

    Abstract: According to a communication method and a communications apparatus, in a process in which an access network device serving a terminal is handed over from a source access network device to a target access network device, a user plane function network element may transmit first information to the source access network device. The first information is used to indicate that the user plane function network element bicasts downlink packets to the source access network device and the target access network device, so that after determining that a data packet received before the first information is sent to the terminal, the source access network device triggers an air interface handover, to avoid a packet loss in a handover process, or so that the source access network device synchronizes a PDCP SN of the source access network device with a PDCP SN of the target access network device.

    Method, device, and system for deploying network slice

    公开(公告)号:US11490327B2

    公开(公告)日:2022-11-01

    申请号:US16750633

    申请日:2020-01-23

    Abstract: Embodiments of the present disclosure include a method, a device, and a system for deploying a network slice. The method, device and system disclosed herein are related to the field of communications technologies, and are designed to solve the problem of low efficiency in manually deploying a network slice. An exemplary solution includes: a first network management unit receiving a network slice management request message that carries service traffic information of a network slice, and, based on the service traffic information of the network slice, deploying the network slice or selecting an available network slice in an existing network.

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