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Method and system for the allocation of UWB transmission based on spectrum opportunities

  • US 7,650,126 B2
  • Filed: 04/04/2005
  • Issued: 01/19/2010
  • Est. Priority Date: 04/08/2004
  • Status: Active Grant
First Claim
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1. A method for efficiently utilizing spectrum resources, comprising:

  • determining multiple spectrum opportunities, wherein each opportunity is identified by a frequency range and a time duration;

    determining whether signals are present in said identified frequency range, wherein if the signals are present, then analyzing said signals and determining the characteristics of said signals;

    if the signals are not present in said identified frequency range, then transmitting desired signals using fixed operating conditions;

    wherein if the signals are present in said identified frequency range, thendetermining a set of altered transmission characteristics based on the determined signal characteristics to allow for transmission of a desired signal in said identified frequency range, wherein said altered transmission characteristics avoid interference with signals expected in said frequency range; and

    transmitting said desired signal over the multiple spectrum opportunities simultaneously using said altered transmission characteristics when said transmission occurs during said time duration;

    wherein said determining multiple spectrum opportunities comprises;

    determining a location of a receiving device;

    obtaining location and transmission characteristics for known transmitters from at least one database; and

    determining an estimated received signal characteristics based on the location and transmission characteristics of said transmitters and a location of said receiving device.

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