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A user plane function switching method, device, system and storage medium

A technology of function switching and user plane, which is applied in the field of data communication, can solve the problems of affecting user experience, lower forwarding efficiency of user plane functions, and low identification efficiency, etc., and achieve the effect of improving business experience and smooth forwarding

Active Publication Date: 2022-07-26
LENOVO (BEIJING) LTD
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Problems solved by technology

However, the efficiency of existing in-depth packet recognition is very low. Re-performing in-depth packet recognition will reduce the forwarding efficiency of user plane functions, thereby affecting user experience.

Method used

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  • A user plane function switching method, device, system and storage medium
  • A user plane function switching method, device, system and storage medium
  • A user plane function switching method, device, system and storage medium

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Embodiment Construction

[0027] In order to make the objectives, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodime...

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Abstract

The invention discloses a user plane function switching method, device, system and storage medium. When using the method to switch the user plane function during the user terminal moving process, the effective data packet flow description and in-depth message identification information of the user terminal identified by the old user plane function are uploaded to the session management function, and shared through the session management function. For the new user plane function after the switch, the new user plane function can directly use the recognition result obtained by the old user plane function, without the need to perform deep packet identification again in the new user plane function. Further, it can also reduce the recognition failure caused by the absence of the first packet in the deep packet recognition after switching the user plane function, which can greatly improve the forwarding smoothness of the packet flow description, and greatly improve the user's service experience.

Description

technical field [0001] The present invention relates to the field of data communication, and in particular, to a user plane function (User Plane Function, UPF) switching method, device, system and storage medium. Background technique [0002] In the 5G system, it is necessary to implement fine policy application requirements for user traffic, including filtering, orientation, charging, current limiting, etc. To achieve this requirement, the Packet Flow Description (PFD) needs to be configured in the user plane function as the Traffic matching conditions. The packet flow description is usually composed of flow characteristics such as domain name, IP address, and protocol type, and these characteristics need to be obtained through Deep Packet Inspection (DPI) on the traffic packets. , the rules can be matched according to the domain name information in it. Since the user plane function will be switched during the movement of the user terminal (User Equipment, UE), the packet...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L43/02H04L43/10H04L67/148
CPCH04L43/02H04L43/10H04L67/148
Inventor 李金辉
Owner LENOVO (BEIJING) LTD
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