Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-10-14
2008-03-25
Ferguson, Keith (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432200, C455S435200, C455S435100, C455S432300, C455S550100, C455S551000, C455S422100
Reexamination Certificate
active
07349695
ABSTRACT:
A mobile device for roaming between wireless communications networks in different geographical regions is provided. The mobile device includes an interface configured to transmit and receive signals over a wireless channel according to a communication mode using one of a plurality of access technologies. The device also includes a store holding a preferred roaming list having a common block holding data common to the plurality of access technologies, and a set of access technology-specific blocks each holding channel acquisition data specific to one of the plurality of access technologies for setting up the communication mode.
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Mazziotto, G., “The Subscriber Identity Module for the European Digital Cellular System GSM”, Jun. 26, 1990, pp. 1-9.
Oommen Paul
Tseng Yichyun Mitch
Ferguson Keith
Squire Sanders & Dempsey L.L.P.
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