Systems and methods for locating remote units operating in a radiocommunication system using an adjunct system
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United States of America Patent
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-
Apr 16, 2002
Grant Date -
N/A
app pub date -
Apr 22, 1997
filing date -
Apr 22, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Independent or quasi-independent systems, sometimes referred to as adjunct systems, can be provided to monitor remote unit transmissions and derive location information for mobile units making emergency access therefrom. Techniques for determining which channels each adjunct receive shall monitor are described herein, as well as specific monitoring techniques. Moreover, the adjunct system can use the received information to provide a second speech path to an emergency service center.
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