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Router notification message sending method and device

A technology for announcing messages and sending methods, applied in the field of communication

Active Publication Date: 2021-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a method and device for sending a router advertisement message, which solves the problem of how to send a router advertisement message to a terminal device in a scenario where a terminal device is served by multiple SMFs and realizes traffic distribution through multi-homing

Method used

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  • Router notification message sending method and device
  • Router notification message sending method and device
  • Router notification message sending method and device

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Embodiment Construction

[0149] In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations, and any embodiment or solution described as "exemplary" or "for example" in the embodiments of the present application It should not be construed as preferred or advantageous over other embodiments or aspects. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

[0150] In this application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character " / " generally indicates that the contextual objects are an "or" relationship. In addition, the terms "first" and "second...

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Abstract

The invention provides a router notification message sending method and device. The method comprises the following steps: a session management function network element receives a local link address and an IP prefix from an intermediate session management function network element, wherein the local link address and the IP prefix correspond to a local session anchor function network element managedby the intermediate session management function network element; and the session management function network element sends a router notification message to terminal equipment, wherein the router notification message comprises the local link address and the IP prefix. Therefore, the problem of how to construct or generate the router notification message and send the router notification message to the terminal equipment in a scene of realizing shunting through multiple hosts when the terminal equipment is served by multiple SMFs is solved.

Description

technical field [0001] The present application relates to the communication field, in particular to a method and device for sending a router advertisement message. Background technique [0002] In the 5G network SMF and UPF topology enhancement (Enhancing Topology of SMF and UPF in 5GNetworks, ETSUN) scenario, the session management function network element (Session Management Function, SMF) has a certain coverage, called the SMF service area (SMF service area). area, SMF SA), that is, the sum of service areas of all user plane function network elements (User Plane Function, UPF) managed by the SMF. Since the SMF cannot serve the entire Public Land Mobile Network (PLMN), when the terminal device moves, there may be insertion or deletion of the I-SMF, such as the terminal device establishes a protocol data unit (Protocol Data Unit, PDU ) session, the PDU session is provided with session management services by SMF, and forwarding services are provided by UPF-1, that is, acces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/24H04W76/10H04W88/18H04L12/751H04L45/02
CPCH04W40/24H04W40/248H04W76/10H04W88/18H04L45/02
Inventor 李永翠朱方园吴义壮李岩倪慧
Owner HUAWEI TECH CO LTD
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