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Method and device for releasing user plane functional network elements

A technology of user equipment and user plane, applied in the field of communication, can solve the problem of single release strategy

Active Publication Date: 2021-07-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the requirements of different user equipments may be different, and the requirements of different applications are also different, so only the policy based on SMF configuration adopts a PSA release strategy for all user equipment or all applications, and the release strategy is single

Method used

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  • Method and device for releasing user plane functional network elements
  • Method and device for releasing user plane functional network elements
  • Method and device for releasing user plane functional network elements

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Embodiment Construction

[0087] The technical solution in this application will be described below with reference to the accompanying drawings.

[0088] figure 1 It is a schematic block diagram of a wireless communication system 100 architecture according to a method and device for releasing user plane function network elements according to the present application. like figure 1 As shown, the architecture of the system 100 includes a terminal device, an access network device, a management device, a gateway device and a data network (data network, DN). in, figure 1 The terminal device in the network can be used to connect to the access network device deployed by the operator through the wireless air interface, and then connect to the data network through the gateway device; the access network device is mainly used to realize wireless physical layer functions, resource scheduling and wireless resource management, Functions such as wireless access control and mobility management; the management device...

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Abstract

This application provides a method and device for releasing the user plane functional network element, so that the SMF determines whether to release the user plane functional network element UPF according to the release policy of the user plane functional network element, and avoids the SMF only deciding according to the locally configured policy Release the UPF of the user plane function network element, which improves the flexibility of the SMF to release the UPF of the user plane function network element UPF. The method includes: according to the decision information, determining the release policy of the user plane function network element of the protocol data unit PDU session; sending the release policy of the user plane function network element to the session management function network element.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a method and device for releasing a user plane function network element. Background technique [0002] In the fifth generation mobile communication system (5th Generation, 5G), a user terminal UE establishes a Protocol Data Unit (Protocol Data Unit, PDU) session after accessing the network, and accesses an external data network through the PDU session. For an IP-type or Ethernet-type PDU session, a session management function (Session Management Function, SMF) network element selects a user plane function (user plane function, UPF) as an anchor point Anchor for the PDU session. In order to reduce the delay, access the data network nearby or reduce routing detours during UE movement, the anchor point needs to be reselected. The 5G system supports multiple protocol data unit anchor points (PDU Session Anchor, PSA) in one PDU session. scene. In the prior art, the SMF d...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/30H04W76/38
CPCH04W76/30H04W76/38
Inventor 丁辉时书锋
Owner HUAWEI TECH CO LTD