×

Systems, methods, and apparatuses for spectrum-sensing cognitive radios

  • US 7,710,919 B2
  • Filed: 07/18/2006
  • Issued: 05/04/2010
  • Est. Priority Date: 10/21/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A cognitive radio system, comprising:

  • at least one antenna;

    a spectrum-sensing module configured to receive a radio frequency (RF) input signal from the at least one antenna and configured to generate analog radio frequency (RF) spectrum usage information, wherein the spectrum-sensing module processes the received RF input signal in an analog domain to generate the analog RF spectrum usage information;

    an analog-to-digital converter for digitizing the analog RF spectrum usage information; and

    a medium access control (MAC) module operative to receive the digitized RF spectrum usage information from the spectrum-sensing module, wherein the MAC module is operative to direct a frequency of operation of a radio front-end module based at least in part on the received spectrum usage information, wherein the spectrum-sensing module operates in parallel with the radio front-end module such that the spectrum-sensing module and radio front-end module are operative independently of each other.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×