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Method and system for releasing tunnel connection in communication system supporting local IP access

A communication system and tunnel connection technology, applied in the field of tunnel connection release, can solve problems affecting data forwarding, low data processing efficiency, and information cannot be released, and achieve the effect of ensuring efficiency

Inactive Publication Date: 2011-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when the user terminal enters the connection state, the IP access connection information on the S-GW will not be deleted, so the information on the S-GW cannot be released, which may cause too much information stored on the S-GW. Too many results in low data processing efficiency, which affects data forwarding

Method used

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  • Method and system for releasing tunnel connection in communication system supporting local IP access
  • Method and system for releasing tunnel connection in communication system supporting local IP access
  • Method and system for releasing tunnel connection in communication system supporting local IP access

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Embodiment Construction

[0073] The basic idea of ​​the present invention is: when the user terminal is in an idle state, transfer the downlink tunnel accessed by the local IP of the user terminal to the core network side, that is, establish a tunnel between the local gateway and the core network service gateway, and send it to the The data of the user terminal will be cached in the core network service gateway, and then delivered to the user terminal by the core network gateway. When the user terminal has services or the tracking area is updated, the direct tunnel of the local IP access is re-established. At this time, the MME will send a release message to the core network service gateway to release the local IP access connection information, and the core network service gateway will release the local IP access connection information. The IP accesses the connection information, thereby ensuring the timely release of invalid information on the core network service gateway, and ensuring the efficiency ...

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Abstract

The invention discloses a method for releasing tunnel connection in a communication system supporting local IP access, comprising the following steps: in a service request or tracking area updating process, a mobility management entity (MME) sends a release message of local IP access connection to a core network service gateway, and the core network service gateway releases the message of local IP access connection based on the release message. The invention also discloses a system for realizing the method. When a user terminal has services or the tracking area needs to be updated, the direct tunnel of LIPA (local IP access) is reconstructed, at the moment, the MME sends the release message for releasing the LIPA connection message to the core network service gateway, and the core network service gateway releases the LIPA connection message, thus ensuring timely release of invalid messages on the core network service gateway, and ensuring the efficiency of the core network service gateway for processing network side data.

Description

technical field [0001] The invention relates to a technology for releasing an indirect tunnel when a direct tunnel mode is used for local IP access of a user terminal, and in particular to a method and system for releasing a tunnel connection in a communication system supporting local IP access. Background technique [0002] The 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) evolved packet system (EPS, Evolved Packet System) consists of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), Mobility Management Entity (MME, Mobility Management Entity), Serving Gateway (S-GW, ServingGateway), Packet Data Network Gateway (P-GW or PDN GW, Packet Data Network Gateway), Home Subscriber Server (HSS, Home Subscriber Server), 3GPP It consists of authentication, authorization and accounting (AAA, Authentication, Authorization and Accounting) server, Policy and Charging Rules Function (PCRF, P...

Claims

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Application Information

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IPC IPC(8): H04W8/12H04W76/06H04W80/04
Inventor 霍玉臻周娜王静梁爽
Owner ZTE CORP