EP1827034B1

5G,4G,3G,2G

Title

A method and system of holding session continuity

Application Number:

EP20050820665

Publication Date:

11-03-2009

Current Assignee:

Family ID:

Application Date:

19-12-2005

Declaring Company:

Publication Country:

US

Priority Date:

17-12-2004

Title

A method and system of holding session continuity

Application Number:

EP20050820665

Family ID:

Publication Country:

US

Publication Date:

11-03-2009

Application Date:

19-12-2005

Priority Date:

17-12-2004

Current Assignee:

Declaring Company:

Abstract  Abstract

A method and a system for maintaining session continuity in which the system includes: a Handover Source Function (HOSF) a Handover Destination Function (HODF) a Handover Anchor Function-Control Plane (HOAF-CP) and a Handover Anchor Function-User Plane (HOAF-UP). The method includes: a first user establishing a connection through the HOSF with the HOAF-CP and the HOAF-UP which correspond to a second user so as to establishing a session with the second user; during session handover the HODF that corresponds to the HOSF establishing another connection with the HOAF-CP and HOAF-UP though which the first user continues the session with the second user so as to maintain the session continuity. When the access address or the access means of the terminal changes or even the terminal changes during a session embodiments of the present invention can logically replace the connection before the handover with a new connection to ensure the session continuity.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.