Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method
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United States of America Patent
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May 10, 2011
Grant Date -
Aug 25, 2005
app pub date -
Mar 24, 2005
filing date -
Mar 28, 2003
priority date (Note) -
In Force
status (Latency Note)
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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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