Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-04-17
2007-04-17
Trinh, Sonny (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S438000, C455S439000, C455S442000, C370S331000, C370S332000, C370S469000
Reexamination Certificate
active
10184360
ABSTRACT:
A method and system for providing an adaptive IP handoff triggering system for a wireless communication system that consists of either the same or heterogeneous wireless access technologies. A mobile node is notified of at least one pre-trigger timing parameter by a current access network. At least one variable handoff threshold is constructed with the mobile node based on the at least one pre-trigger timing parameter. An IP handoff is then initiated to a candidate access network when pilot beacon signal strength of the mobile node reaches the variable handoff threshold.
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Fu Guangrui
Funato Daichi
Gwon Youngjune
Takeshita Atsushi
Kwok Edward C.
MacPherson Kwok & Chen & Heid LLP
NTT DoCoMo Inc.
Trinh Sonny
Vu Thai
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