EP2079253A1

5G,4G,3G

Title

Non-3GPP to 3GPP network handover optimizations

Application Number:

EP20080000304

Publication Date:

15-07-2009

Current Assignee:

Family ID:

Application Date:

09-01-2008

Declaring Company:

Publication Country:

US

Priority Date:

09-01-2008

Title

Non-3GPP to 3GPP network handover optimizations

Application Number:

EP20080000304

Family ID:

Publication Country:

US

Publication Date:

15-07-2009

Application Date:

09-01-2008

Priority Date:

09-01-2008

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention relates to a method for preparing and performing a handover of a mobile node from a non-3GPP network to a 3GPP network. The handover procedure is improved by discovering an appropriate MME in the 3GPP system and by registering the mobile node at the discovered MME in advance instead of during the actual handover procedure. This includes to first determine the location of the mobile node in the non-3GPP network so as to be able to detect an MME in the vicinity of the mobile nodes current location. The 3GPP contexts are then transmitted to the new MME before the handover is performed. Provided that the MN is informed about the determined MME it includes the identifier of the selected MME in the appropriate attach message during the handover.

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.