Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2009-07-23
2011-10-18
Cho, Un C (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C455S456500, C455S456600
Reexamination Certificate
active
08041354
ABSTRACT:
A mobile unit transmits a request for position registration to a network when moving from a first area to a second area. When the number of incoming calls does not exceed a threshold and the number of movements between the first area and the second area exceeds a threshold, a mobile switchboard combines the first area and the second area into an extended area, and informs the mobile unit of the extended area.
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Aikawa Shinichiro
Koizumi Yoshiko
Noda Yukihiro
Shimominami Yoko
Cho Un C
Fujitsu Limited
Katten Muchin & Rosenman LLP
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