Maximum ratio combining architectures for optimal complementary code keying receiver design
First Claim
1. A multi input multi output (MIMO) receiver for receiving signals comprising:
- a plurality of equalizers responsive to aligned signals and operative to use the aligned signals and filter coefficients to generate a plurality of equalized outputs, said MIMO receiver for training said plurality of equalizers to adapt said filter coefficients for generating said plurality of equalized outputs, said MIMO receiver for combining said plurality of equalized outputs in time domain to generate a weighted output, said MIMO receiver for improving the quality of said weighted output by performing equalization prior to combining said plurality of equalized outputs; and
an equalizer adaptation module having a plurality of training modules for training said plurality of equalizers by updating said filter coefficients, said equalization adaptation module including said plurality of equalizers, said equalizer adaptation module for generating a plurality of errors used by said plurality of training modules to update said filter coefficients, said equalizer adaptation module for minimizing said plurality of errors to generate said plurality of equalized outputs.
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Accused Products
Abstract
A multi input multi output (MIMO) receiver for receiving signals having a plurality of equalizers being responsive to aligned signals for processing the same to generate a plurality of equalized outputs using filter coefficients, in accordance with an embodiment of the present invention. The MIMO receiver for training said plurality of equalizers to adapt said filter coefficients for generating said plurality of equalized outputs, said MIMO receiver for combining said plurality of equalized outputs in time domain to generate a weighted output, said MIMO receiver for improving the quality of said weighted output by performing equalization prior to combining said plurality of equalized outputs.
14 Citations
16 Claims
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1. A multi input multi output (MIMO) receiver for receiving signals comprising:
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a plurality of equalizers responsive to aligned signals and operative to use the aligned signals and filter coefficients to generate a plurality of equalized outputs, said MIMO receiver for training said plurality of equalizers to adapt said filter coefficients for generating said plurality of equalized outputs, said MIMO receiver for combining said plurality of equalized outputs in time domain to generate a weighted output, said MIMO receiver for improving the quality of said weighted output by performing equalization prior to combining said plurality of equalized outputs; and an equalizer adaptation module having a plurality of training modules for training said plurality of equalizers by updating said filter coefficients, said equalization adaptation module including said plurality of equalizers, said equalizer adaptation module for generating a plurality of errors used by said plurality of training modules to update said filter coefficients, said equalizer adaptation module for minimizing said plurality of errors to generate said plurality of equalized outputs. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for receiving signals comprising:
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processing aligned signals and filter coefficients to generate a plurality of equalized outputs; training a plurality of equalizers, by updating said filter coefficients, to adapt said filter coefficients for generating said plurality of equalized outputs; generating a plurality of errors used to update the filter coefficients; minimizing the plurality of errors to generate said plurality of equalized outputs; generating the plurality of equalized outputs using the minimized errors; combining the plurality of equalized outputs in time domain to generate a weighted output; and performing equalization prior to combining to improve the quality of the weighted output.
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8. A multi input multi output (MIMO) receiver for receiving signals comprising:
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means for processing aligned signals and filter coefficients to generate a plurality of equalized outputs; means for training a plurality of equalizers, by updating said filter coefficients, to adapt said filter coefficients; means for generating a plurality of errors to generate said plurality of equalized outputs and used to update the filter coefficients and for minimizing the plurality of errors and for generating the plurality of equalized outputs; means for combining the plurality of equalized outputs in time domain to generate a weighted output; and means for performing equalization prior to combining to improve the quality of the weighted output.
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9. A non-transitory computer readable medium having stored therein computer readable program code comprising:
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processing aligned signals and filter coefficients to generate a plurality of equalized outputs; training a plurality of equalizers, by updating said filter coefficients, to adapt said filter coefficients for generating said plurality of equalized outputs; generating a plurality of errors used to update the filter coefficients; minimizing the plurality of errors to generate said plurality of equalized outputs; generating a plurality of equalized outputs; combining the plurality of equalized outputs in time domain to generate a weighted output; and performing equalization prior to combination to improve the quality of the weighted output.
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10. A multi input multi output (MIMO) receiver for receiving signals comprising:
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a plurality of phase/timing alignment modules being responsive to phase/timing alignment parameters for using the same to generate phase/timing aligned signals, said MIMO receiver for training said phase/timing alignment parameters to generate said phase/timing aligned signals, said MIMO receiver for combining said phase/timing aligned signals to generate a phase/timing aligned output, said MIMO receiver including an equalizer for equalizing said phase/timing aligned output to generate an equalized output, said MIMO receiver for improving the quality of said equalized output by combining said phase/timing aligned signals; a training module for updating said phase/timing alignment parameters, said training module for minimizing an error generated by subtracting the output of said equalizer from a reference signal to update said filter coefficients and phase/timing alignment parameters. - View Dependent Claims (11, 12, 13)
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14. A method for receiving signals comprising:
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generating phase/timing aligned signals using phase/timing alignment parameters; training the phase/timing alignment parameters; updating said phase/timing alignment parameters prior to equalization; combining the phase/timing aligned signals to generate a phase/timing aligned output;
equalizing the phase/timing aligned output to generate an equalized output; andminimizing an error generated by subtracting the equalized output from a reference signal to update said phase/timing alignment parameters.
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15. A multi input multi output (MIMO) receiver for receiving signals comprising:
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means for generating phase/timing aligned signals using phase/timing alignment parameters; means for training the phase/timing alignment parameters; means for combining the phase/timing aligned signals to generate a phase/timing aligned output; and means for equalizing the phase/timing aligned output to generate an equalized output; and means for updating said phase/timing alignment parameters prior to equalization and minimizing an error generated by subtracting the output of an equalizer from a reference signal to update said phase/timing alignment parameters.
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16. A non-transitory computer readable medium having stored therein computer readable program code comprising:
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generating phase/timing aligned signals using phase/timing alignment parameters; training the phase/timing alignment parameters; updating said phase/timing alignment parameters prior to equalization; combining the phase/timing aligned signals to generate a phase/timing aligned output; equalizing the phase/timing aligned output to generate an equalized output and minimizing an error generated by subtracting the output from a reference signal to update said phase/timing alignment parameters.
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Specification