Method and device for maintaining the performance quality of a communication system in the presence of narrow band interference
First Claim
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1. A method, comprising:
- analyzing, by a processor, a wide frequency band with respect to signal power levels in specified narrow frequency bands;
detecting, by the processor, narrow band signal power levels received in the specified narrow frequency bands;
determining, by the processor, an average composite wideband power level from the narrow band signal power levels;
determining, by the processor, an adaptive threshold;
scanning, by the processor, a known narrow band channel of the wide frequency band having a history of causing interference in the wide frequency band; and
detecting, by the processor, according to one of the adaptive threshold, the average composite wideband power level, or both, interference in the wide frequency band caused by signals transmitted in the known narrow band channel.
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Abstract
A system that incorporates teachings of the subject disclosure may include, for example, a method for analyzing a wide frequency band with respect to signal power levels in specified narrow frequency bands, detecting narrow band signal power levels received in the specified narrow frequency bands, determining an average composite wideband power level from the narrow band signal power levels, determining an adaptive threshold from the average composite wideband power level, detecting narrow band interference according to the adaptive threshold, and configuring a filter to substantially suppress the detected narrow band interference. Other embodiments are disclosed.
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Citations
20 Claims
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1. A method, comprising:
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analyzing, by a processor, a wide frequency band with respect to signal power levels in specified narrow frequency bands; detecting, by the processor, narrow band signal power levels received in the specified narrow frequency bands; determining, by the processor, an average composite wideband power level from the narrow band signal power levels; determining, by the processor, an adaptive threshold; scanning, by the processor, a known narrow band channel of the wide frequency band having a history of causing interference in the wide frequency band; and detecting, by the processor, according to one of the adaptive threshold, the average composite wideband power level, or both, interference in the wide frequency band caused by signals transmitted in the known narrow band channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory, machine-readable storage medium, comprising instructions, which when executed by a processor, cause the processor to perform operations comprising:
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scanning wireless signals in a wide frequency band; measuring power levels in narrow frequency bands from the wireless signals; determining a threshold from the power levels in the narrow frequency band; identifying a narrow band channel of the wide frequency band known to cause interference in the wide frequency band; detecting interference in the narrow band channel based on the threshold; and suppressing at least a portion of the interference caused by the narrow band channel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A device, comprising:
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a receiver that receives wireless signals; a memory that stores 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; determining a threshold from power levels measured in the wide frequency band; identifying a narrow band channel of the wide frequency band known to cause interference in the wide frequency band; and detecting interference in the narrow band channel according to the threshold. - View Dependent Claims (18, 19, 20)
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Specification