Patent ID: 7710919
Filing Date: 2010-05-04
Classification: H04B,H04W

Abstract:
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.