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Optimal packet routing method and system for low earth orbit satellite communication system

  • US 6,178,163 B1
  • Filed: 12/11/1998
  • Issued: 01/23/2001
  • Est. Priority Date: 12/11/1998
  • Status: Expired due to Fees
First Claim
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1. In a Low Earth Orbit satellite communication system using data packets traveling among satellite units and ground stations for information exchange, a method of implementing an optimal route for the data packets to travel from a source satellite to a destination satellite, said method comprising the steps of:

  • selectively choosing an intermediary satellite at a ground station;

    calculating a plurality of shortest paths between the source satellite to the intermediary satellite at the ground station;

    calculating a plurality of shortest paths between the intermediary satellite to the destination satellite at the ground station;

    selecting an optimal route from the calculated shortest paths between the source satellite to the intermediary satellite at the ground station;

    selecting an optimal route from the calculating shortest paths between the intermediary satellite to the destination satellite at the ground station;

    encoding route information according to the selected optimal routes from the source satellite to the destination satellite via the intermediary satellite into the data packets at the ground station; and

    transmitting the data packets with the encoded route information to the source satellite, wherein the data packets travel from the source satellite to the destination satellite according to the encoded route information.

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