Patent ID: 8774335

Claim:
A method, comprising: scanning, by a cognitive radio, a radio frequency spectrum; identifying, by the cognitive radio, an available frequency band in the radio frequency spectrum, wherein a portion of the available frequency band is subject to undesirable radio frequency interference; selecting, by the cognitive radio, the available frequency band for engaging in communications independent of there being interference in the available frequency band; determining, by the cognitive radio, a signal strength for each of a plurality of narrowband channels in the available frequency band; determining, by the cognitive radio, a correlation factor for at least a portion of the plurality of narrowband channels by correlating the signal strength for each of the plurality of narrowband channels; identifying, by the cognitive radio, from the correlation factor a narrowband channel of the plurality of narrowband channels that contains narrowband interference; and generating, by the cognitive radio, tuning coefficient data to substantially suppress the narrowband interference in the narrowband channel for communicating in the narrowband channel.