초록 ▼

An improved positioning system and method for use in a wireless communication system including a plurality of base stations each having a corresponding coverage area. Scaled contour shapes are generated having minimum and maximum boundaries based upon determined RF measurements of each of the base s

An improved positioning system and method for use in a wireless communication system including a plurality of base stations each having a corresponding coverage area. Scaled contour shapes are generated having minimum and maximum boundaries based upon determined RF measurements of each of the base stations. The intersections of the contour shapes define a bounding polygon area that describes the position of a mobile unit in terms of minimum and maximum error estimate. Once the bounding polygon area has been defined, the latitude and longitude of the center of the polygon area is determined whereupon corresponding street addresses may be obtained through reference to one or more databases.

대표청구항 ▼

For use in a wireless communication system including a plurality of base stations each having a corresponding coverage area, a method for determining the position of a mobile unit, comprising: for each of the base stations, determining in cooperation with a receiver, a plurality of RF measurements f

For use in a wireless communication system including a plurality of base stations each having a corresponding coverage area, a method for determining the position of a mobile unit, comprising: for each of the base stations, determining in cooperation with a receiver, a plurality of RF measurements for the base station, for a predetermined plurality of distances and directions; for each of the base stations, modeling its determined RF measurements as a scaled contour shape having minimum and maximum boundaries which is capable of being projected on a Graphical Information System (GIS); determining RF measurements from neighboring base stations; and determining where the corresponding contours of the RF measurements from neighboring base stations intersect so as to define a bounding polygon area that describes the position of the mobile unit in terms of a minimum and maximum error estimate.