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Method for dynamic frequency selection and system supporting the same in a cognitive radio wireless communication system

  • US 8,055,213 B2
  • Filed: 11/06/2006
  • Issued: 11/08/2011
  • Est. Priority Date: 11/04/2005
  • Status: Active Grant
First Claim
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1. A method of dynamically selecting a frequency band in a Customer Premise Equipment (CPE) in a Cognitive Radio (CR) wireless communication system, the method comprising:

  • receiving, from a CR base station (CR BS), a band monitoring request message including information identifying frequency bands that the CPE is to monitor;

    monitoring, at the CPE, reception of a signal from a neighboring primary Base Station (BS) in a current frequency band now in use, based on the band monitoring request message;

    receiving, at the CPE, a current frequency band list including currently available frequency bands, the current frequency band list being broadcasted periodically by the CR BS;

    receiving, at the CPE, a candidate frequency band list including candidate frequency bands, the candidate frequency band list being broadcasted intermittently by the CR BS; and

    sending a sensing report message including information about the current frequency band to the CR BS,wherein the available frequency bands include frequencies on which a signal from a primary system has not been sensed.

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