Service continuity processing method and equipment

Abstract

The embodiment of the invention provides a service continuity processing method and equipment, and the method comprises the steps that an MME determines whether the PDN connection needs to maintain the service continuity or not through obtaining the service continuity information of the PDN connection of UE according to the service continuity information of the PDN connection; and the MME selectsa new packet data gateway PGW for the UE if the PDN connection does not need to maintain the service continuity, and maintains the connection between the UE and the original PGW if the PDN connectionneeds to maintain the service continuity. According to the method, the normal continuity of the service of the UE needing to keep the service continuity can be ensured. The more suitable PGW can be selected for the UE not needing to keep the service continuity on the premise of not influencing the service continuity of the service in the PDN connection, so that the path of the UE is better, and the routing resources are also saved.

Description

[0001] This application is a divisional application of the invention application with application number 201380034764.6 submitted on December 30, 2013. technical field [0002] The present invention relates to communication technology, in particular to a business continuity processing method and equipment. Background technique [0003] Service continuity in a network refers to the feature of ensuring that ongoing network services will not be interrupted, especially in a mobile network, ensuring service continuity is an important feature of the network. The continuity of the network service can be realized in various ways, for example, it can be guaranteed by the relevant mechanism of the application layer, and can also be guaranteed by the mechanism of the network layer such as the Internet Protocol (Internet Protocol, IP) layer. The continuity of some services is realized by ensuring that the IP address of the user equipment (User Equipment, UE for short) remains unchanged ...

AI Technical Summary

Problems solved by technology

For UEs that do not need to maintain service continuity, if the network still selects the previously used PGW for them, when the UE moves far away from the original PGW, the service flow between it and the PDN network will take a long time. The transmission path, which will cause a lot of waste of routing resources

[0005] In order to solve the problem of wasting routing resources in the prior art 1, a new network mechanism, Selected IP Traffic Offload (SIPTO for short), is introduced into the 3GPP network

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