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Method for preventing false resource release in tracing section updating or switching course

A technology for tracking area update and switching process, which is applied in the field of avoiding resource release by mistake, and can solve the problems of resource release by mistake, unable to know whether the destination MME is selected, etc., and achieve the effect of ensuring smooth progress

Active Publication Date: 2008-10-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In this technology, when the target MME still uses the old Serving GW without selecting a new one, the source MME will also initiate a delete user context request to the old Serving GW, which will cause the old Serving GW and the user-related resources to released by mistake
In this scheme, the source MME cannot know whether the destination MME has selected a new Serving GW

Method used

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  • Method for preventing false resource release in tracing section updating or switching course
  • Method for preventing false resource release in tracing section updating or switching course
  • Method for preventing false resource release in tracing section updating or switching course

Examples

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] like image 3 As shown, this embodiment includes the following steps:

[0041] Step 301, the destination MME judges whether to use the old Serving GW or reselect a new Serving GW;

[0042]Step 302, if the target MME judges to select a new Serving GW, then the target MME sends a notification message to the source MME, indicating that the target MME has selected a new Serving GW, with address information of the new Serving GW (when the source MME is The serving GPRS support node SGSN needs to establish a tunnel to the new Serving GW, and at this time, address information of the new Serving GW is needed); the source MME returns a response to the destination MME.

[0043] Step 303, after receiving the notification message, the old MME judges that the Serving GW has changed, and then sends a delete context request to the old Serving GW; a...

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Abstract

The invention discloses a method for avoiding resource release by mistake during an update or switch process in a tracking area, which includes the following steps: a target MME judges whether to use an old system architecture evolution serving GW or to reselect a new serving GW; if the target MME judges to select the new serving GW, a source MME is notified and sends a request for deleting the context to the old serving GW. No notice is needed to be sent when the old serving GW is used since the target MME knows whether to use the old serving GW or reselect the new serving GW; the notice is only sent when the new serving GW is selected, thus solving the problem of resource release by mistake in the source serving GW and guaranteeing the success of the update or the conversion.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for avoiding wrong release of resources during tracking area update or handover. Background technique [0002] With the sudden emergence of Wimax (World Interoperability for Microwave Access, the third-generation mobile communication system must improve its network performance and reduce network construction and operation in order to maintain its strong competitiveness in the field of mobile communication. cost. Therefore, the standardization working group of 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) is currently working on researching PS Core (Packet Switch Core, packet switching core network) and UTRAN (Universal Mobile Telecommunication System Radio Access Network, The evolution of the Global System for Mobile Communications Radio Access Network), this research topic is called System Architecture Evolution (SAE for short), the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26
Inventor 朱进国方敏
Owner ZTE CORP
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