Method and apparatus for a source-initiated handoff from a...

Details Method and apparatus for a source-initiated handoff from a... Method and apparatus for a source-initiated handoff from a...

2005-06-07

2005-06-07

Nguyen, Chau (Department: 2667)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S338000

Reexamination Certificate

active

06904029

ABSTRACT:
To address the need for an apparatus and method for handoff from a cellular wireless network to a non-cellular wireless network (WLAN, e.g.), the present application describes an access gateway (214) and a dual mode mobile station (201) that enable such handoffs. Dual mode MSs can determine when a handoff to a non-cellular network is preferred and request a handin (302) from the non-cellular network. The access gateway provides information to the MS (304) so that it can initiate a handoff through the serving cellular network. Triggering handoffs in this manner, allows cellular networks to handle handoffs to non-cellular networks in much the same way they handle inter-MSC handoffs today, i.e., source initiated.

REFERENCES:
patent: 5175867 (1992-12-01), Wejke et al.
patent: 2002/0085516 (2002-07-01), Bridgelall
patent: 2003/0117978 (2003-06-01), Haddad
patent: 2004/0002335 (2004-01-01), Pan et al.

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