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Channel Allocation for Burst Transmission to a Diversity of Satellites

  • US 20090274113A1
  • Filed: 05/01/2008
  • Published: 11/05/2009
  • Est. Priority Date: 05/01/2008
  • Status: Active Grant
First Claim
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1. A method for allocating transmission channels to a plurality of devices configured to communicate with a diversity of satellites, comprising, at each device, the steps of:

  • a) determining the current time and self location via a Global Navigation Satellite System (GNSS);

    b) determining the current service areas (“

    footprints”

    ) of said diversity of satellites on earth surface;

    c) defining as a mega-cell each entire area covered by the same footprints;

    d) determining a transmission cycle divided to time slots, synchronized with said GNSS signals;

    e) allocating at least one channel or one time slot to each mega-cell, wherein channels and time slots are reused in different mega-cells, and at least for two mega-cells, fewer time slots are allocated to the mega-cell served by more satellites;

    f) dividing each mega-cell into cells, at least one cell in a mega-cell;

    g) allocating different channels and/or different time slots to different cells in a mega-cell, from those allocated to the corresponding mega-cell;

    h) selecting a specific channel and a specific time slot from those allocated to the corresponding cell, according to at least one of;

    random or pseudo-random selection;

    unique identification data (ID) stored at each device;

    classification data stored and/or acquired at each device;

    the nature of data to be transmitted;

    signal/control input;

    current geographical location;

    coordination with other devices.

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