System and method for estimating positioning error within a WLAN-based positioning system
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United States of America Patent
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Sep 13, 2011
Grant Date -
Apr 7, 2011
app pub date -
Dec 13, 2010
filing date -
Nov 7, 2006
priority date (Note) -
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Abstract
The invention features a method of estimating an expected error of a position estimate for use in a WLAN positioning system that estimates the position of a WLAN-enabled device. The WLAN-enabled device receives signals transmitted by a WLAN access point in range of the WLAN-enabled device. The method estimates the position of the WLAN-enabled device based on the received signals from the WLAN access point in range of the WLAN enabled device. The method also estimates an expected error of the position estimate based on characteristics of the WLAN access point in range of the WLAN enabled device, wherein the expected error predicts a relative accuracy of the position estimate.
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