Methods and apparatuses for using assistance data relating...

Details Methods and apparatuses for using assistance data relating... Methods and apparatuses for using assistance data relating...

G - Physics

01

S

G01S 5/14 (2006.01) G01S 1/00 (2006.01) G01S 5/00 (2006.01)

Patent

CA 2404109

Methods and apparatuses to obtain an ordered set of satellite positioning system (SPS) satellites, in view of a mobile SPS receiver, via one or two-way communication with the mobile SPS receiver. The mobile SPS receiver receives, in one embodiment, an ordered set of SPS satellites from a cellular transmission site. The ordered set of satellites are those in view of the mobile SPS receiver at a given time; such that the mobile SPS receiver may search for the SPS satellites according to an order of the ordered set of SPS satellites. The order of the ordered set may be obtained by various methods one of which is by minimizing the geometric dilution of precision (GDOP) Satellite; health data may be included in the transmission.

L'invention concerne des procédés et des appareils permettant l'obtention d'un ensemble ordonné de satellites de systèmes de positionnement par satellite (SPS) visibles pour un récepteur SPS mobile, par communication unidirectionnelle ou bidirectionnelle avec le récepteur SPS mobile. Le récepteur SPS mobile reçoit, dans un mode de réalisation, un ensemble ordonné de satellites SPS d'un site de transmission cellulaire. L'ensemble ordonné de satellites est celui qui est visible pour le récepteur SPS à n'importe quel moment, de sorte que ledit récepteur SPS puisse rechercher les satellites en fonction d'un ordre de l'ensemble ordonné de satellites SPS. L'ordre de l'ensemble ordonné peut être obtenu par divers procédés, dont un qui consiste à minimiser la précision d'origine géométrique (GDOP) de satellite de précision ; des données de santé peuvent être incluses dans la transmission.

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