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US 12,659,214 B2Granted
Spectrum mode determination for convergent digital radio
AssigneeSkyworks Solutions, Inc.
InventorsConnor William Blasie, Thomas Mario Cassaro, Alexander Kleinerman
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Abstract
Aspects of this disclosure relate to determining a spectrum mode of a Convergent Digital Radio signal. The Convergent Digital Radio signal can be filtered by a plurality of filters. Correlation coefficients can be generated from filtered signals, in which each correlation coefficient corresponds to a particular spectrum mode. The spectrum mode can be selected based on the correlation coefficients.
Claims20
Digital signal processing circuitry comprising:
- a plurality of filters each having a passband corresponding to at least one spectrum mode;
- a plurality of correlators each configured to generate a correlation coefficient associated with a particular spectrum mode, each of the plurality of correlators being coupled to a filter of the plurality of filters;
- and
- a selection circuit configured to generate a ratio based on a group of the correlation coefficients from the plurality of correlators associated with at least two spectrum modes, and to select a spectrum mode of a Convergent Digital Radio signal based on at least the ratio.
1 more element
A method of determining spectrum mode for Convergent Digital Radio, the method comprising:
- providing, by a plurality of filters each having a passband corresponding to at least one spectrum mode, a plurality of filtered signals;
- generating correlation coefficients based on the plurality of filtered signals, each of the correlation coefficients corresponding to a particular spectrum mode;
- and
- selecting a spectrum mode of a Convergent Digital Radio signal based on at least two of the correlation coefficients, the selecting being based on a power spectral density ratio associated with a group of the correlation coefficients associated with at least two spectrum modes.
1 more element
A radio system comprising:
- one or more antennas;
- a receive signal path operatively connected to the one or more antennas;
- and
- digital signal processing circuitry in communication with the receive signal path, the digital signal processing circuitry configured to implement a plurality of filters each having a passband corresponding to at least one spectrum mode;
- a plurality of correlators each configured to generate a correlation coefficient associated with a particular spectrum mode, each of the plurality of correlators being coupled to a filter of the plurality of filters;
- and a selection circuit configured to generate a ratio based on a group of the correlation coefficients associated with at least two spectrum modes and to select a spectrum mode of a Convergent Digital Radio signal received by the one or more antennas based on at least the ratio.
3 more elements
Dependencies are inferred from the claim text.