Selection of a primary satellite

Details Selection of a primary satellite Selection of a primary satellite

H - Electricity

04

B

H04B 7/195 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2164435

A device for selecting a primary satellite for a terminal (T) in a radiocommunication system having a number of moving satellites comprises measurement means for determining location information (D) on the basis of the position of the terminal with respect to each of the neighboring satellites (S1, S2, S3) on which it has becomed synchronized, estimation means for estimating the period of visibility of each of the satellites on the basis of the location information, and selection means for selecting the satellite (S2) having the longest estimated visibility.

Dispositifs de sélection d'un satellite de rattachement pour un terminal (T) d'un système de radiocommunications comprenant une pluralité de satellites defilant, comprenant des moyens de mesure pour établir une information de localisation (D) fonction de la position du terminal par rapport à chacun des satellites de proximité (S1, S2, S3) sur lesquels il a acquis la synchronisation, des moyens d'estimation pour estimer la durée de visibilité de chacun de ces satellites à partir de l'information de localisation et des moyens de sélection pour sélectionner celui des satellites (S2) qui présente la plus grande durée de visibilité estimée.

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