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Method and apparatus providing suppression of system access by use of confidence polygons, volumes and surfaces in a mobile satellite system

  • US 7,995,989 B2
  • Filed: 12/29/2000
  • Issued: 08/09/2011
  • Est. Priority Date: 12/29/2000
  • Status: Active Grant
First Claim
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1. A method for operating a mobile satellite communication system having at least one gateway (GW), at least one user terminal (UT), and a constellation of satellites, comprising steps of:

  • allowing access to said constellation of communication satellites by specifying an exclusion zone having a confidence limit (CL) associated therewith; and

    selectively providing service to a UT depending on a determined location of the UT relative to the exclusion zone and on an estimated error (E) of the determined UT location,wherein location of the UT is determined by the UT, and transmitted to the GW, or wherein location of the UT is determined by the GW.

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