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US 9,647,720 B2Granted
Method and apparatus for an adaptive filter architecture
AssigneeISCO International, LLC
InventorsAmr Abdelmonem, Sean S. Cordone
Life of this patent
Estimating the term…
Abstract
A system that incorporates teachings of the subject disclosure may include, for example, a method for selecting a spectral region in a radio frequency spectrum for initiating a communication session having an uplink and a downlink, correlating a signal strength of portions of the spectral region to generate a correlation factor, detecting radio frequency interference in the spectral region according to the correlation factor, and generating tuning coefficient data to substantially suppress the radio frequency interference in the spectral region during the communication session. Other embodiments are disclosed.
Claims20
A method, comprising:
- identifying, by a system comprising a processor, an available portion of a radio frequency spectrum for initiating a communication session having an uplink and a downlink for exchanging data;
- selecting, by the system, the available portion of the radio frequency spectrum for engaging in communications independent of there being interference in the available portion of the radio frequency spectrum;
- determining, by the system, a signal strength for each of a plurality of bands in the available portion of the radio frequency spectrum;
- determining, by the system, a correlation factor for select bands that have a signal strength greater than other bands in the plurality of bands;
- detecting, by the system, radio frequency interference in at least one band of the plurality of bands according to the correlation factor, wherein the radio frequency interference includes a plurality of interference signals;
- generating, by the system, tuning coefficient data to suppress at least a portion of the radio frequency interference including the plurality of interference signals in the at least one band while engaged in the communication session;
- receiving, by the system, a first signal in the available portion of the radio frequency spectrum;
- and
- filtering, by the system, the first signal according to the tuning coefficient data to filter the radio frequency interference using a filter, wherein the filter is a combination of notch filters, and wherein each notch frequency of the notch filters corresponds to a frequency of one of the plurality of interference signals.
6 more elements
A device, comprising:
- a radio frequency transceiver;
- a filter;
- and
- a circuit coupled to the radio frequency transceiver and the filter, wherein execution of instructions by the circuit cause the circuit to perform operations comprising:
- causing the radio frequency transceiver to monitor a plurality of spectral regions;
- selecting an available spectral region from the plurality of spectral regions even when the available spectral region is affected by interference, wherein the available spectral region is used for initiating a communication session having an uplink and a downlink for exchanging data;
- generating a correlation factor for the available spectral region;
- detecting interference in the available spectral region according to the correlation factor, wherein the interference includes a plurality of interference signals;
- generating coefficient data to suppress at least a portion of the interference including the plurality of interference signals in the available spectral region during the communication session;
- and
- causing the filter to filter a signal received in the available spectral region according to the coefficient data to filter at least a portion of the interference including the plurality of interference signals, wherein the filter is a combination of notch filters, and wherein each notch frequency of the notch filters corresponds to a frequency of one of the plurality of interference signals.
8 more elements
A storage device, comprising instructions, which when executed by a circuit, cause the circuit to perform operations comprising:
- monitoring a spectral region in a radio frequency spectrum for initiating a communication session;
- selecting portions of the spectral region for engaging in the communication session independent of there being interference in the portions of the spectral region;
- correlating a signal in the portions of the spectral region to generate a correlation factor;
- detecting interference in the portions of the spectral region according to the correlation factor, wherein the interference includes a plurality of interference signals;
- generating tuning coefficient data to suppress at least a portion of the interference including the plurality of interference signals in the portions of the spectral region during the communication session;
- filtering a signal received in a downlink of the portions of the spectral region using a filter according to the tuning coefficient data to generate a filtered downlink signal, wherein the filter is a combination of notch filters, and wherein each notch frequency of the notch filters corresponds to a frequency of one of the plurality of interference signals;
- and
- supplying the filtered downlink signal for further processing.
5 more elements
Dependencies are inferred from the claim text.