Multiplex communications – Communication over free space – Combining or distributing information via frequency channels
Patent
1998-11-23
2000-02-08
Vu, Huy D.
Multiplex communications
Communication over free space
Combining or distributing information via frequency channels
370318, 455 63, 455509, H04J 116
Patent
active
060234636
ABSTRACT:
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.
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Gallagher Vijaya K
Monte Paul A
Wiedeman Robert A.
Globalstar L.P.
Vu Huy D.
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