Patent Number: 8,792,908

Title: Method and apparatus for determining position of a wireless device

Abstract: A method and apparatus for determining the location of a device capable of receiving/transmitting wireless signals from/to reference stations is provided, for example providing wireless signals in the form of range information to the device; determining a region or area surrounding each reference station, wherein regions intersect to form intersecting spaces; defining the intersecting spaces to delineate a device location search space and determining device locations within the search space; determining combinations of said device locations, and using a distribution analysis test to examine a skewness value of each combination; detecting and selecting the combinations of device positions that result in a minimum skewness value or simply a combination that provides skewness value less than a pre-defined minimum threshold value; and utilizing the detected and selected combinations to determine a refined final position of the device.

Inventors: Youssef; Mohamed (Richmond, CA), El-Sheimy; Naser (Edmonton, CA), Fattouche; Michel (Calgary, CA)


International Classification: H04W 24/00 (20090101)

Expiration Date: 7/29/12018