System and method for estimating the location of a mobile...

H - Electricity – 04 – W

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H04W 64/00 (2009.01) H04W 56/00 (2009.01) H04W 4/22 (2009.01)

Patent

CA 2687072

A system and method for estimating the location of a mobile station that receives signals from a plurality of base stations. An estimated location of a mobile station may be determined through any number of or combination of location technologies. Network measurements such as observed time difference values and/or a round trip time values at the mobile station or base stations in the network may be utilized. Network timing relationships may be determined as a function of the estimated location and network measurements. An estimated location of a second mobile station may be determined as a function of the network timing relationships.

L'invention concerne un système et un procédé d'estimation de la position d'une station mobile qui reçoit des signaux de plusieurs stations de base. Une position estimée d'une station mobile peut être déterminée par n'importe quel nombre ou combinaison de technologies de position. Des mesures de réseau, telles que des valeurs de différences temporelles observées et/ou des valeurs temporelles de transmission aller-retour au niveau de la station mobile ou des stations de base dans le réseau, peuvent être utilisées. Les relations de synchronisation de réseau peuvent être déterminées comme fonction de la position estimée et des mesures de réseau. Une position estimée d'une seconde station mobile peut être déterminée comme fonction des relations de synchronisation de réseau.

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