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1. (WO2001005063) TELECOMMUNICATION METHOD AND SYSTEM VIA MOVING SATELLITES WHEREIN COMMUNICATIONS ARE TRANSFERABLE FROM ONE SATELLITE TO ANOTHER

Pub. No.:    WO/2001/005063    International Application No.:    PCT/FR2000/001824
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Fri Jun 30 01:59:59 CEST 2000
IPC: H04B 7/005
H04B 7/185
Applicants: ALCATEL
CALOT, Guillaume
BOUDJEMA, Eric
ROUFFET, Denis
PALMADE, Jean-Luc
PIAU, Pascal
PELIGRY, Yves
Inventors: CALOT, Guillaume
BOUDJEMA, Eric
ROUFFET, Denis
PALMADE, Jean-Luc
PIAU, Pascal
PELIGRY, Yves
Title: TELECOMMUNICATION METHOD AND SYSTEM VIA MOVING SATELLITES WHEREIN COMMUNICATIONS ARE TRANSFERABLE FROM ONE SATELLITE TO ANOTHER
Abstract:
The invention concerns a telecommunication method based on moving satellites (S1, S2, S3 and S4) whereby the earth is divided into zones (20i) inside which the communications of the terminals of said zone with the network are relayed by a managing station (22) and a communication terminal (241, 242) and the managing station is provided via a satellite, another satellite taking over the communication when the first satellite is no longer being used. To command the transfer of communications from one satellite to another, predetermined times are selected during which at least two satellites are simultaneously visible from the zone, or from part of the zone. The command for communication transfers is for example collectively carried out for a plurality of terminals.