Beacon system using cellular digital packet data (CDPD) communication for roaming cellular stations
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United States of America Patent
Stats
-
Aug 4, 1998
Grant Date -
N/A
app pub date -
Dec 4, 1995
filing date -
Dec 4, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cellular telephone system is upgraded by modifying subscriber units for selective service provider acquisition during roaming. Priority of acquisition is given to those service providers associated with the home service provider. These preferred service providers are identified by system identification (SIDs) numbers. A roaming subscriber unit will tune to a single beacon frequency identifying cellular digital packet data (CDPD) frequencies from which the subscriber unit will select one CDPD frequency corresponding to a service provider operating in the geographic area to which the subscriber has roamed.
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