Satellite telephone interference avoidance system

Details Satellite telephone interference avoidance system Satellite telephone interference avoidance system

H - Electricity

04

B

H04B 7/185 (2006.01) H04B 15/00 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2226883

39 A method is disclosed for operating a first satellite communications system of a type that operates co-frequency with at least one second transmission system, such as a second satellite communications system. The method includes steps, executed during the operation of the first satellite communications system, of measuring at a plurality of locations within a coverage area of the first system an amount of interference resulting at least in part from the at least one second transmission system, the amount of interference being measured over a band of frequencies allocated to the first system; (b) transmitting an indication of the measured interference from each location to a central site; and (c) in accordance with the transmitted indications, assigning at least one user terminal to a sub-band of frequencies within the band of frequencies so as to reduce an amount of interference experienced by the user terminal.

Méthode d'exploitation d'un premier système de télécommunications par satellite utilisant les mêmes fréquences qu'au moins un deuxième système de transmission, p. ex. un deuxième système de télécommunications par satellite. Comprend les étapes suivantes, exécutées pendant le fonctionnement du premier système de télécommunications par satellite : a) mesurer, à un certain nombre de points de la zone de couverture du premier système, un niveau de brouillage résultant au moins en partie du ou desdits deuxième(s) système(s) de transmission, ces mesures étant prises dans une bande de fréquences attribuée au premier système; b) transmettre à un emplacement central une indication du brouillage mesuré à chaque point; et c) selon les indications transmises, affecter à au moins un terminal d'utilisateur une sous-bande de la bande de fréquences afin de réduire le niveau de brouillage subi par le terminal d'utilisateur.

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