H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 64/00 (2009.01)
Patent
CA 2485408
To locate a mobile terminal (MS1, MS2, ...) within a mobile communication network comprising at least a radio base station (BTS1, BTS2, ..., BTSn), a set of physical dimensions are measured, which identify, according to respective functions, the location co-ordinates (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 (.phi.) 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 (.phi.) 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.
L'invention porte sur un procédé de localisation d'un terminal mobile (MS1, MS2, ...) dans un réseau mobile de télécommunications comportant au moins une station radio de base (BTS1, BTS2, ..., BTSn), consistant à mesurer un ensemble de dimensions physiques identifiant selon leurs fonctions respectives les coordonnées (x, y, z) de localisation du terminal mobile. Ledit procédé comporte les étapes suivantes: production en partant desdites dimensions et leurs fonctions respectives, d'une fonction d'erreur (F) sur la localisation globale présentant un minimum pour les valeurs desdites coordonnées (x, y, z) de localisation correspondant à la position occupée par ledit terminal mobile; recherche du minimum de ladite fonction d'erreur (F) en faisant varier au moins l'une des coordonnées (x, y, z), de localisation; et localisation dudit terminal mobile en correspondance avec la valeur de la ou des coordonnées de localisation correspondant audit minimum.
Annunziato Armando
Rosenga Giorgio
Salio Stefano
Ridout & Maybee Llp
Telecom Italia S.p.a.
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