Interference detection, identification, extraction and reporting

A system adapted to detect and eliminate narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, wherein guard bands having guard band frequencies are adjacent the frequency bandwidth, the system comprising:

• a scanner adapted to scan at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels;
• a notch module adapted to receive the wideband communication signal and to selectively remove narrowband interference from the wideband communication signal to produce a filtered wideband communication signal;
• and
• a controller coupled to the scanner and to the notch module, wherein the controller is adapted to control the scanner to scan at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels, to determine a threshold based on the signal strengths in at least some of the narrowband channels, to control the scanner to scan the guard band frequencies to determine guard band signal strengths and to control the notch module to selectively filter a guard band frequency when the guard band signal strength exceeds the threshold.

A method of detecting and eliminating narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the method comprising:

• scanning at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels;
• determining a threshold based on the signal strengths in at least some of the narrowband channels;
• identifying narrowband channels having signal strengths exceeding the threshold;
• identifying narrowband channels having temporary interference;
• and
• filtering the wideband communication signal at a frequency corresponding to a narrowband channel having a signal strength exceeding the threshold, but not filtering the narrowband channels identified as having temporary interference.

A system adapted to detect and eliminate narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the system comprising:

• a scanner adapted to scan at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels;
• a notch module adapted to receive the wideband communication signal and to selectively remove narrowband interference from the wideband communication signal to produce a filtered wideband communication signal;
• and
• a controller coupled to the scanner and to the notch module, wherein the controller is adapted to operate in conjunction with the scanner to determine a threshold based on the signal strengths in at least some of the narrowband channels, to identify narrowband channels having signal strengths exceeding the threshold, to identify narrowband channels having a temporary interference and to control the notch module to filter the wideband communication signal at a frequency corresponding to an identified narrowband channel having a signal strength exceeding the threshold, but not to filter the narrowband channels having temporary interference.

A method of detecting and eliminating narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the method comprising:

• scanning at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels in an order representative of a probability that the narrowband channels will have interference;
• determining a threshold based on the signal strengths in at least some of the narrowband channels;
• identifying narrowband channels having signal strengths exceeding the threshold;
• and
• filtering the wideband communication signal at a frequency corresponding to an identified narrowband channel having signal strengths exceeding the threshold.

A system adapted to detect and eliminate narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the system comprising:

• a scanner adapted to scan at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels in an order representative of a probability that the narrowband channels will have interference;
• a notch module adapted to receive the wideband communication signal and to selectively remove narrowband interference from the wideband communication signal to produce a filtered wideband communication signal;
• and
• a controller coupled to the scanner and to the notch module, wherein the controller is adapted to operate in conjunction with the scanner to determine a threshold based on the signal strengths in at least some of the narrowband channels, to identify narrowband channels having signal strengths exceeding the threshold and to control the notch module to filter the wideband communication signal at a frequency corresponding to an identified narrowband channel having a signal strength exceeding the threshold.

A method of detecting and eliminating narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the method comprising:

• scanning at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels;
• determining a threshold based on the signal strengths in at least some of the narrowband channels;
• storing a list of narrowband channels having signal strengths that exceed the threshold;
• identifying a type of interference source based on the list of narrowband channels having signal strengths that exceed the threshold;
• and
• filtering the wideband communication signal at a frequency corresponding to an identified narrowband channel having a signal strength exceeding the threshold, wherein the filtering is based on the type of interference source identified.

A system adapted to detect and eliminate narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the system comprising:

• a scanner adapted to scan at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels in an order representative of a probability that the narrowband channels will have interference;
• a notch module adapted to receive the wideband communication signal and to selectively remove narrowband interference from the wideband communication signal to produce a filtered wideband communication signal;
• and
• a controller coupled to the scanner and to the notch module, wherein the controller is adapted to store a list of narrowband channels having signal strengths that exceed the threshold, to identify a type of interference source based on the list of narrowband channels having signal strengths that exceed the threshold and to control the notch module to filter the wideband communication signal at a frequency corresponding to an identified narrowband channel having a signal strength exceeding the threshold, wherein the filter used by the notch module is based on the type of interference source identified.

A method of detecting and eliminating narrowband interference in a wideband communication signal having a frequency bandwidth with narrowband channels disposed therein, the method comprising:

• scanning at least some of the narrowband channels to determine signal strengths in at least some of the narrowband channels;
• determining a threshold based on the signal strengths in at least some of the narrowband channels;
• storing a list of narrowband channels having signal strengths that exceed the threshold;
• assigning filters to at least some of the identified narrowband channels having signal strengths exceeding the threshold;
• and
• outputting to a network administrator the list of narrowband channels having signal strengths that exceed the threshold.