Method and apparatus for a source-initiated handoff from a source cellular wireless network to a target non-cellular wireless network
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United States of America Patent
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Jun 7, 2005
Grant Date -
Jul 29, 2004
app pub date -
Jan 23, 2003
filing date -
Jan 23, 2003
priority date (Note) -
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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.
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