The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2010
Filed:
Aug. 13, 2004
Eero Sillasto, Helsinki, FI;
Maurizio Spirito, Turin, IT;
Eero Sillasto, Helsinki, FI;
Maurizio Spirito, Turin, IT;
Nokia Corporation, Espoo, FI;
Abstract
The method generates a location estimate for a mobile station in a wireless communications network. The method includes receiving first measurement data relating to at least one radio link between the mobile station and a first site, and provides a first distance estimate of the mobile station from the first site based on the first measurement data. Second measurement data is received, relating to at least one radio link between the mobile station and a second site and provides a second distance estimate of the mobile station from the second site. First and second intersection points are determined between a circle centered at the first site of a radius corresponding to the first distance estimate, and a circle centered at the second site of the radius corresponding to the second distance estimate. The first and second intersection points lie on opposite sides of a line passing through the first and second sites. At least one of the first and second intersection points are used in the determination of the location estimate.