Method and apparatus for a target-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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Aug 16, 2005
Grant Date -
Oct 14, 2004
app pub date -
Jan 23, 2003
filing date -
Jan 23, 2003
priority date (Note) -
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status (Latency 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. The MS provides information to the access gateway so that it can initiate a handoff with the serving cellular MSC (251). By triggering handoffs in this manner, cellular networks need not have special information about non-cellular networks to support handoffs. Instead, 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.
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