Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-05-08
2009-06-23
Harper, Vincent P (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S338000, C370S329000, C370S331000, C370S310000
Reexamination Certificate
active
07551579
ABSTRACT:
Methods and systems for classifying WLAN access points according to the quality of estimation of characteristics of the WLAN access points are provided. The classifications may be used to scale a reference database and quantify an expected error of estimation of the characteristics of the access points. WLAN access points may be classified based on their impact on a user's position, speed of travel, and direction of travel estimation accuracy in a WLAN positioning system. A method for determining a quality of estimation of characteristics of a Wi-Fi access point comprises a Wi-Fi enabled scanning device measuring a number of received signal strength (RSS) samples of the Wi-Fi signal transmitted by the Wi-Fi access point. A total distance traveled by the Wi-Fi enabled scanning device while measuring the number of RSS samples is estimated and used to estimate the quality of estimation of characteristics of the Wi-Fi access point.
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Alizadeh-Shabdiz Farshid
Brachet Nicolas
Pahlavan Kaveh
Casca Fred A
Harper Vincent P
Skyhook Wireless, Inc.
Wilmer Cutler Pickering Hale & Dorr LLP
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