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

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 present invention relates to a technology for releasing an indirect tunnel when the local IP access of a user terminal adopts a direct tunnel mode, in particular to a method and system for releasing a tunnel connection in a communication system supporting local IP access. Background technique [0002] The Evolved Packet System (EPS, Evolved Packet System) of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) is composed 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 Authentication, authorization and accounting (AAA, Authentication, Authorization and Accounting) server, policy and charging rules function (PCRF, Pol...

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

Images