Flexible coverage areas for return link signals in a spot beam satellite communication system

Zones de couverture flexibles pour signaux de liaison retour dans un système de communication satellite à faisceau étroit

Flexible Abdeckungsbereiche für Rückwärtsverbindungssignale in einem Spotbeam-Satellitenkommunikationssystem

Abstract

Conventional spot beam satellites receive return uplink beam signals that each correspond to a separate and unique return downlink beam. An embodiment of the invention allows flexible coverage areas by selectively attenuating and combining multiple return uplink beam signals and transmitting them on a single beam to a gateway terminal. This allows uplink capacity to be dynamically allocated amongst different uplink signals. Offered load in different beams can be predicted and used to set the attenuation values appropriately and the attenuation values may also be controlled remotely.

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NO-Patent Citations (1)

    Title
    TANAKA M ET AL: "Experimental fixed and mobile multibeam satellite communications system", 19890611; 19890611 - 19890614, 11 June 1989 (1989-06-11), pages 1587 - 1594, XP010081320

Cited By (0)

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