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Method and device for managing session connection

A technology of session management and mobile management, which is applied in the field of communication, can solve problems such as service interruption and poor user experience, and achieve the effect of avoiding interruption and improving user experience

Pending Publication Date: 2022-02-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the terminal is not in the SMF SA corresponding to the MA PDU session, the session establishment request for the MA PDU session will be rejected, resulting in service interruption and poor user experience

Method used

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  • Method and device for managing session connection
  • Method and device for managing session connection
  • Method and device for managing session connection

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Experimental program
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Embodiment Construction

[0119] The technical solution in this application will be described below with reference to the accompanying drawings.

[0120] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: long term evolution (long termevolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), the fifth generation (5th generation, 5G) system or new radio (new radio, NR) and future mobile communication systems, etc.

[0121] The terminal equipment in the embodiment of the present application may refer to a device with a wireless transceiver function, and may be called a terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment ( mobile terminal, MT), vehicle terminal equipment, remote station, remote terminal equipment, etc. The specific form of terminal equipment...

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PUM

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Abstract

The invention provides a method and a device for managing session connection. And the SMF receives the first message sent by the AMF, and determines whether the terminal moves out of the service area of the SMF according to the first message. And under the condition that the SMF determines that the terminal moves out of the service area of the SMF, the current multi-access session connection is modified into single-access session connection, and first indication information for indicating the single-access session connection is sent to the AMF. Namely, in the embodiment of the invention, under the condition that the SMF determines that the terminal is moved out of the service area of the SMF and cannot execute the multi-access session connection, the multi-access session connection is modified into the single-access session connection, and the AMF is informed, so that subsequent services can communicate through the single-access session connection, the interruption of the subsequent services is avoided. is improved.

Description

technical field [0001] The present application relates to the communication field, and more for example, relates to a method and device for managing session connections. Background technique [0002] The characteristics of access traffic steering, switching, splitting (ATSSS) mainly study how to access the network and non-3GPP (Non-3GPP, N3GPP) in the third generation partnership project (3rd generation partnership project, 3GPP) The selection, switching and offloading of service distribution paths are performed between access networks. [0003] In the 5G architecture supporting ATSSS, the terminal can establish a single access protocol data unit (protocol data units, PDU) session or a multi-access PDU (multi-access PDU session, MA) between the terminal and the data network (data network, DN). PDU) session. That is, the terminal can establish a PDU session through a 3GPP access network or an N3GPP access network, and can also establish a MA PDU session through a 3GPP acces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/25
CPCH04W76/25
Inventor 李永翠陈泽昊倪慧
Owner HUAWEI TECH CO LTD