METHOD, DEVICE AND SYSTEM FOR CONNECTION RELEASE

摘要

A method, device and system for connection release are disclosed, which relate to communication technology field, and they solve the technical problem in the prior art that network resources would not be reasonably used because the established Selected IP Traffic Offload Packet Data Network (SIPTO PDN) connection is not released in time. When the mobility management network element for a service user has changed, the SIPTO PDN connection is decided whether to be released or not according to the user's access information in target side; if the release of the SIPTO PDN connection is decided, then the message for deleting the SIPTO PDN connection will be sent to a user side gateway. The method, device and system are mainly used in the aspect of network resources optimization.