Methods and arrangements for locating a mobile...

H - Electricity – 04 – Q

Patent

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H04Q 7/38 (2006.01)

Patent

CA 2374815

In a mobile telecommunications network, a mobile station (MS) (12) is configured to generate and uplink transmit position measuring data (54, 70) prior to and/or during a call connection, without noticeably interrupting the user or degrading the quality of service provided. Position measuring data (54, 70) can be uplink transmitted over an idle traffic channel during a call set up operation for a brief moment while the call connection is being completed. Position measuring data (54, 70) can also be uplink transmitted during a call by selectively stealing data positions or burst positions in the uplink signal. The position measuring data (54, 70) is received by a plurality of base stations (14) and uplink signal characteristics are measured and collected. The measured uplink signal characteristic data from several base stations (14) is then used to determine a current approximate geographical location of the mobile station (12).

Dans un réseau de télécommunication mobile, une station mobile (MS) (12) est configurée pour générer et transmettre en liaison montante des données de mesure de position (54, 70) avant et/ou pendant l'établissement d'une communication, sans interrompre de façon notable l'utilisateur ni détériorer la qualité de service fournie. Les données de mesure de position (54, 70) peuvent être transmises en liaison montante par un canal de trafic disponible pendant une opération d'établissement de communication pendant un court laps de temps alors que la communication est en cours. Les données de mesure de position (54, 70) peuvent également être transmises en liaison montante pendant un appel par vol sélectif de positions de données ou de positions de rafales de données dans le signal liaison montante. Les données de mesure de position (54, 70) sont reçues par plusieurs stations de base (14) et les caractéristiques de signaux liaison montante sont mesurées et recueillies. Les données caractéristiques de signal liaison montante mesurées provenant de plusieurs stations de base (14) permettent alors de déterminer une localisation géographique approximative actuelle de la station mobile (12).

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