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Spectrum utilization in a radio system

  • US 20070287469A1
  • Filed: 04/26/2007
  • Published: 12/13/2007
  • Est. Priority Date: 04/26/2006
  • Status: Abandoned Application
First Claim
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1. A method of using a radio frequency spectrum, comprising sharing a shared radio spectrum by a first radio system and a second radio system co-existing in at least one geographical location, said first radio system comprising radio access points providing user terminals of the first radio system with access to the first radio system at least in said shared radio spectrum, providing at least one radio access point of the first radio system in said at least one geographical location with information on the co-existing second radio system and the constraints it causes to user terminals operating in the service area of the radio access point, broadcasting, at said at least one radio access point, beacon or control information derived from said provided information to user terminals operating in the service area of said at least one radio access point, and adapting operation of said user terminals in said shared radio spectrum according to said beacon or control information such that user terminals can operated co-existent with the second radio system.

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