Mobile location method for WLAN-type systems
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United States of America Patent
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Feb 16, 2010
Grant Date -
Jun 14, 2007
app pub date -
Dec 12, 2005
filing date -
Dec 12, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a new and unique method and apparatus for providing an estimate of a mobile location of a wireless node, point or terminal in a wireless local area network (WLAN) or other suitable network, the estimate being based on a correlation of a radio frequency (RF) signal strength measurement and a grid point in a signal strength database or radio map. The signal strength database or radio map is built using a signal strength fingerprint algorithm. The signal strength fingerprint algorithm includes selecting and measuring a set of grid points in the wireless local area network (WLAN) or other suitable network.
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