Method and system for estimating a subscriber's location in...

Details Method and system for estimating a subscriber's location in... Method and system for estimating a subscriber's location in...

H - Electricity

04

Q

H04Q 7/20 (2006.01) G01S 5/02 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2302502

In a model of a wireless communication system service area (160), a set of characteristics associated with the reception of a model signal (210) are calculated (308), preferably using ray-tracing techniques, wherein the model signal (172) is transmitted from a selected location (162) to a receiver location (166). Next, a set of characteristics that describe a received signal at a receiver location in the wireless communication system service area are measured (316), wherein the receiver location corresponds to the receiver location in the model (160). Thereafter, a relationship between the calculated set of characteristics and the measured set of characteristics is determined (318), and the location of the subscriber unit that transmitted the received signal is estimated (320) in response to the relationship between the calculated set of characteristics and the measured set of characteristics.

Dans un modèle de zone (160) de couverture d'un système de communication sans fil, un ensemble de caractéristiques associées à la réception d'un signal (210) résultant du modèle sont calculées (308), de préférence à l'aide de techniques de lancé de rayon, dans lesquelles le signal (172) résultant du modèle est envoyé d'un endroit sélectionné (62) à un endroit (166) de réception. Ensuite, un ensemble de caractéristiques qui décrivent un signal reçu au niveau de l'endroit de réception dans la zone de couverture de système de communication sans fil sont mesurées (316); ledit endroit de réception correspondant à la position du récepteur dans le modèle (160). Ensuite une relation entre l'ensemble calculé de caractéristiques et l'ensemble mesuré de caractéristiques est déterminée (318) et la position de l'unité d'abonné qui a envoyé le signal reçu est estimée (320) en réponse à la relation existant entre l'ensemble calculé de caractéristique et l'ensemble mesuré de caractéristiques.

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