Method and device for maintaining the performance quality of a communication system in the presence of narrow band interference

A computer-readable storage device, comprising instructions, which when executed by a circuit, cause the circuit to perform operations comprising:

• scanning wireless signals in a wide frequency band;
• measuring from the wireless signals power levels in narrow frequency bands;
• determining an adaptive threshold according to at least some of the power levels measured in the narrow frequency bands;
• detecting from the wireless signals a narrow band interferer based on the adaptive threshold;
• responsive to a detection of the narrow band interferer, obtaining identification information for a source of the narrow band interferer;
• and
• initiating a strategy for responding to interference in the wide frequency band caused by the detected narrow band interferer, wherein the initiating of the strategy is according to the identification information.

A system, comprising:

• a receiver that receives wireless signals;
• a memory storing instructions;
• and
• a circuit coupled to the receiver and the memory, wherein responsive to executing the instructions, the circuit performs operations comprising:
• causing the receiver to scan a wide frequency band;
• receiving wireless signals from the receiver, the signals associated with the wide frequency band;
• measuring power levels in narrow frequency bands from the wireless signals;
• determining an adaptive threshold from at least some of the power levels measured in the narrow frequency bands;
• detecting from the wireless signals a narrow band interferer based on the threshold;
• responsive to a detection of the narrow band interferer, identifying a base station providing communication services to a source of the narrow band interferer;
• and
• providing a request to the base station to initiate a strategy for responding to interference in the wide frequency band caused by the detected narrow band interferer.