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UPF reselection strategy control method, PCF and SMF

A policy control and policy technology, applied in wireless communication, network data management, electrical components, etc., can solve problems such as user experience impact

Active Publication Date: 2018-12-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In the existing UPF reselection policy control method, the SMF decides whether to perform UPF reselection, although when the SMF meets the preset trigger conditions, the third-party application can be reselected from the first UPF according to the request of the third-party application. The second UPF is selected, but since the SMF can only perform UPF reselection for one of the target applications, for other target applications that the UE is accessing, the SMF has no way to reselect these target applications from the first UPF to the second UPF , which will affect the user experience of other target applications that the UE is accessing

Method used

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  • UPF reselection strategy control method, PCF and SMF
  • UPF reselection strategy control method, PCF and SMF
  • UPF reselection strategy control method, PCF and SMF

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Embodiment Construction

[0104] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0105] In a specific embodiment of the invention, Figure 4 It is a schematic flowchart of the first implementation of the policy control method for UPF reselection in the embodiment of the present invention. like Figure 4 As shown, the policy control method for UPF reselection may include the following steps:

[0106] Step 401: Obtain from the SMF the event notification of anchor point reselection occurring in the first PDU session, the validity period of the first IP address of the UE corresponding to the first UPF, and the second IP address of the UE corresponding to the second UPF.

[0107] In a specific embodiment of the present invention, the PCF obtains from the SMF an event notification that the anchor reselection occurs in the first PDU session, the validity period...

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Abstract

Embodiments of the invention disclose a UPF reselection strategy control method, a PCF and an SMF. The method comprises the following steps: obtaining, from the SMF, a first PDU session generation anchor point reselection event, a validity period of a first IP address of UE corresponding to a first UPF and a second IP address of UE corresponding to a second UPF; and sending the validity period ofthe first IP address and the second IP address to AFs corresponding to various target applications.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a policy control method for UPF reselection of a user plane functional entity, a policy control functional entity PCF and a session management functional entity SMF. Background technique [0002] Currently, the industry is researching a next-generation wireless communication system, that is, a fifth-generation mobile communication technology (5th-generation, 5G for short). figure 1 It is a schematic diagram of the composition structure of an existing 5G network based on a single protocol data unit PDU session. like figure 1 As shown, the 5G network includes the following functions: connection management function: mainly responsible for air interface resource scheduling and air interface connection management for terminals accessing the network; authentication service function: mainly responsible for authentication and authentication of user equipment (User Equipment, UE...

Claims

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Application Information

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IPC IPC(8): H04W8/26H04W36/24H04W36/30
CPCH04W8/26H04W36/24H04W36/304H04W36/00
Inventor 周晓云朱进国
Owner ZTE CORP