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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 20020123343A1
  • Filed: 12/29/2000
  • Published: 09/05/2002
  • 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:

  • for a site to be protected from UT transmissions, 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.

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