Handoff method between heterogeneous networks and system...

Details Handoff method between heterogeneous networks and system... Handoff method between heterogeneous networks and system...

2008-01-07

2011-10-11

Pham, Chi (Department: 2471)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S332000, C455S355000

Reexamination Certificate

active

08036175

ABSTRACT:
A handoff method between a source network to which a terminal is connected in order of a Base Station (BS) and an Access Service Network (ASN), and a target network to which the terminal is connected in order of a Packet Data Service Node (PDSN), a Packet Control Function (PCF) and an Access Network (AN). The terminal sends a handoff request message with AN information of the target network to the ASN via the BS. The ASN forwards the handoff request message to the PCF via the PDSN using the AN information. Upon receipt of the handoff request message, the PCF sends a request for session information to the ASN via the PDSN. The PDSN sends a request for context information to the ASN. Upon receipt of the session information request and the context information request, the ASN transfers the context information to the PDSN and transfers the session information to the AN via the PDSN and the PCF.

REFERENCES:
patent: 2005/0068929 (2005-03-01), Chang et al.
patent: 2007/0208864 (2007-09-01), Flynn et al.
patent: 2008/0125126 (2008-05-01), Fang et al.
patent: 2003-235064 (2003-08-01), None
patent: 2005-130487 (2005-05-01), None
patent: 1019980045025 (1998-09-01), None
Chiba et al., “High-Speed Hand-Off Method by Preservation and Transmission of PPP Session Information”, Proceedings of the 2004 IEICE Communications Society Conference, Sep. 21-24, 2004.

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