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Dual band unidirectional scheme in a cellular mobile radio telecommunications system

  • US 7,379,430 B2
  • Filed: 02/01/2001
  • Issued: 05/27/2008
  • Est. Priority Date: 02/01/2000
  • Status: Expired due to Fees
First Claim
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1. A cellular radio telecommunications system comprisinga first cellular radio telecommunications network having at least one base station for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminalsand a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network having at least one base station for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals, wherein unidirectional radio transmission capacity of the second network is associated with duplex radio transmission capacity of the first network, a dedicated unlink channel of said duplex first cellular network mapped to a physical unlink channel of said duplex first cellular network being provided for carrying control and/or error messages of said unidirectional second cellular network from the one or more fixed or mobile terminals.

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