METHOD, SYSTEM AND NODE FOR KEEPING SESSION CONTINUITY AT THE TIME OF HANDOVER BETWEEN DIFFERENT DOMAINS

摘要

A method, a system and a node for keeping session continuity at the time of handover between different domains are disclosed in the present invention which belongs to mobile communication field. The method includes that: a mobile node establishes a session connection with a correspondent node in the first mobile domain; and when the mobile node is handed over from the first mobile domain to the second mobile domain, the mobile node realizes the session with the correspondent node using the address information of an anchor device stored in the first mobile domain before the handover. The system includes a mobile node and an information storage device. The node includes an acquiring module and a session module. In the technical proposal supplied by the present invention, when the mobile node handed over from the first mobile domain to the second mobile domain, it is assured that the mobile node keeps the session with the correspondent node continuing without interruption when the mobile node is handed over between different domains by using the stored address information of an anchor device before the handover by the mobile node.