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A path switching method, device, and system

A path switching and path technology, which is applied in the transmission system, electrical components, wireless communication, etc., to achieve the effects of improving efficiency, improving path quality, and improving user experience

Active Publication Date: 2015-10-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of this, the main purpose of the present invention is to provide a path switching method, device, and system to solve the problem that the existing path switching scheme cannot perform path switching for the reason of the deterioration of the current end-to-end path quality

Method used

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  • A path switching method, device, and system
  • A path switching method, device, and system
  • A path switching method, device, and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] This embodiment describes an implementation process of path switching when the path quality of the current session deteriorates due to path quality deterioration on the core network side: UE_A and UE_B perform multimedia communication through access network node A1 and access network node B1, UE_A When sensing that the quality of the current session path is deteriorating, initiate a path switching request to the core network control node. After receiving the path switching request, the core network control node obtains the end-to-end path quality of the current session path and the core network side path quality. quality status, and judge that the end-to-end path quality of the current session path is not much different from the quality of the core network side path, and determine that the quality deterioration of the current session path is caused by the core network. At this time, the core network control node can select according to a certain strategy. One or more med...

Embodiment 2

[0091] This embodiment describes another implementation process of path switching when the path quality of the current session deteriorates due to path quality deterioration on the core network side: UE_A and UE_B pass access network node A1, media device 1, and access network node B1 For multimedia communication, UE_A perceives that the quality of the current session path is deteriorating, and then initiates a path switching request to the core network control node. After receiving the path switching request, the core network control node obtains the end-to-end path quality of the current session path, and core network side path quality status, and judge that the end-to-end path quality of the current session path is not much different from the core network side path quality, and determine that the deterioration of the current session path quality is caused by the core network. At this time, the core network control node can Reselect one or more media devices as relays for the...

Embodiment 3

[0104] This embodiment describes another implementation process of path switching when the path quality of the current session deteriorates due to path quality deterioration on the core network side: UE_A and UE_B pass access network node A1, media device 1, and access network node B1 For multimedia communication, the media device 1 of the core network senses that the quality of the current session path is deteriorating, and initiates a path switching request to the core network control node. After receiving the path switching request, the core network control node obtains the end-to-end path quality of the current session path, As well as the path quality at the core network side, it is determined that the deterioration of the path quality of the current session is caused by the deterioration of the path quality at the core network side, and a corresponding path switching process is triggered accordingly.

[0105] Such as Figure 7 As shown, the path switching process in this...

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Abstract

Disclosed is a method for path switching. The method includes: after having received a path switching request initiated by a network element in a current session, acquiring by a core network control node the end-to-end path quality of the current session and the path quality at the core network side; determining by the core network control node the reason for deterioration of the path in the current session according to the end-to-end path quality of the current session and the path quality at the core network side; and rejecting by the core network control node the path switching request or re-establishing a media transmission path for the current session according to the determined reason for deterioration of the path in the current session. Also disclosed are a device and system for path switching, which can distinguish the path quality deterioration caused by the access network from the path quality deterioration caused by the core network, and ensure the improvement of the end-to-end path quality by way of path switching, thereby effectively improving the efficiency of path switching, improving path quality, and improving user experience.

Description

technical field [0001] The present invention relates to the path protection technology of IP bearer network in the field of communication, in particular to a path switching method, device and system. Background technique [0002] The rapid development of communication technology has brought about the updating of communication networks, but the high reliability of the network is always the most basic and critical performance requirement. In order to achieve various performance indicators in the business, the IP bearer network introduces a variety of protection technologies at various levels and links such as equipment, paths, and networks to monitor the bearer network status, find faulty equipment, and perform path switching. [0003] The network system structure under a general mode of the path protection technology of the IP bearer network, such as figure 1 As shown, the dotted line indicates the transmission path of the signaling flow between the terminal equipment A (UE_...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04W40/12H04W80/10
CPCH04L45/22
Inventor 胡永生陶全军
Owner ZTE CORP
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