Airborne radiotelephone communications system

Details Airborne radiotelephone communications system Airborne radiotelephone communications system

H - Electricity

04

B

H04B 7/185 (2006.01) H04Q 7/22 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2194568

The airborne radio communications system of the present invention enables an airborne radio to communicate with the ground based cellular radiotelephone system. The present invention also enables the ground based system to keep track of the location of the airborne radiotelephone and page it when a call from the ground based telephone system is received. The ground base station is connected to upward radiating antennas that form airborne cells. As the aircraft with the radio flies through the airborne cells, the airborne relay receives the signals from the base station and relays them to the radio. If the radio is transmitting signals, the relay transmits those signals, through the airborne cells, to the base station. As the aircraft moves from cell to cell, the radio is handed off to the next cell to maintain communications with the ground.

Le système de radiocommunications de bord de cette invention permet à une radio de bord de communiquer avec le système de radiotéléphone cellulaire au sol, et cette invention permet au système au sol de suivre la position du radiotéléphone de bord et de le rechercher lorsqu'un appel est reçu en provenance du système téléphonique au sol. La station de base au sol est connectée à des antennes rayonnant vers le haut qui forment des cellules aéroportées. Lorsque l'aéronef équipé de sa radio traverse les cellules aéroportées, le relais aéroporté reçoit les signaux émis par la station de base et les retransmet à la radio. Si la radio envoie des signaux, le relais retransmet ces derniers à la station de base par les cellules aéroportées. A mesure que l'aéronef se déplace d'une cellule à une autre la radio est transférée à la cellule suivante pour maintenir les communications avec le sol.

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