Telecom Italia S.p.a.

Cselt-centro Studi E Laboratori Telecomunicazioni S.p.a.

Giorgio Rosenga

Stefano Salio

Armando Annunziato

Salvatore De Padova

Enrico Pagana

Armando c/o Telecom Italia SpA Annunziato

To locate a mobile terminal (MS, MS, . . . ) within a mobile communication network comprising at least a radio base station (BTS, BTS, . . . , BTSn), a set of physical dimensions are measured, which identify, according to respective functions, the location coordinates (x, y, z) of the mobile terminal. The method comprises the steps of: generating, starting from said set of physical dimensions and respective functions, a global locating error function (&#x3c6;) which has a minimum for values of said locating co-ordinates (x, y, z) corresponding with the position occupied by said mobile terminal, seeking the minimum of said error function (&#x3c6;) by varying at least one of said locating co-ordinates (x, y, z), and locating said mobile terminal in correspondence with the value of said at least one locating co-ordinate corresponding to said minimum.

Method for locating mobile terminals, system and components therefor

An antenna designed to emit a beam of generally elliptical cross-section has a reflector with a parabolic-elliptical concave surface conforming to the formula

Antenna having radiation pattern with main lobe of generally elliptical

Growing community of inventors

Collegno, Italy

Giorgio Rosenga