Method and apparatus for compensating for variations in a receive portion of a wireless communication device
First Claim
1. A method for compensating for variations in a receive portion of a wireless communication device including at least one of a receiver and a transceiver, the method comprising in the device the steps of:
- generating first and second training signals that originate within the device instead of being received from a source outside the device;
processing said first training signal through said receive portion to derive a processed training signal;
equalizing said processed training signal in an adaptive equalizer to derive an equalized training signal;
comparing said equalized training signal and said second training signal using an adaptive algorithm for deriving coefficients for said adaptive equalizer to compensate for the variations in said receive portion; and
adjusting said adaptive equalizer in accordance with said coefficients to derive a compensated output signal.
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Accused Products
Abstract
A generator (304) generates first and second training signals (320, 318) that originate within a wireless communication device (FIG. 3) instead of being received from a source outside the device. A receive portion (212, 214, 216) of the device processes the first training signal to derive a processed training signal. An adaptive equalizer (310) equalizes the processed training signal to derive an equalized training signal. A processor (312) compares the equalized training signal and the second training signal using an adaptive algorithm to derive coefficients for the adaptive equalizer to compensate for variations in the receive portion, and adjusts the adaptive equalizer in accordance with the coefficients to derive a compensated output signal.
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Citations
21 Claims
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1. A method for compensating for variations in a receive portion of a wireless communication device including at least one of a receiver and a transceiver, the method comprising in the device the steps of:
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generating first and second training signals that originate within the device instead of being received from a source outside the device;
processing said first training signal through said receive portion to derive a processed training signal;
equalizing said processed training signal in an adaptive equalizer to derive an equalized training signal;
comparing said equalized training signal and said second training signal using an adaptive algorithm for deriving coefficients for said adaptive equalizer to compensate for the variations in said receive portion; and
adjusting said adaptive equalizer in accordance with said coefficients to derive a compensated output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for compensating for variations in a receive portion of a wireless communication device including at least one of a receiver and a transceiver, the apparatus comprising:
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a generator for generating first and second training signals that originate within the device instead of being received from a source outside the device;
said receive portion coupled to said generator for processing said first training signal to derive a processed training signal;
an adaptive equalizer coupled to said receive portion for equalizing said processed training signal to derive an equalized training signal;
a processor coupled to said adaptive equalizer and coupled to said second training signal for comparing said equalized training signal and said second training signal using an adaptive algorithm for deriving coefficients for said adaptive equalizer to compensate for the variations in said receive portion, and for adjusting said adaptive equalizer in accordance with said coefficients to derive a compensated output signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A wireless communication device, comprising:
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at least one of a receiver and a transceiver, comprising a receive portion that can have variations in response;
a generator coupled to said receive portion for generating first and second training signals that originate within the device instead of being received from a source outside the device, wherein said receive portion is arranged to process said first training signal to derive a processed training signal;
an adaptive equalizer coupled to said receive portion for equalizing said processed training signal to derive an equalized training signal;
a processor coupled to said adaptive equalizer and coupled to said second training signal for comparing said equalized training signal and said second training signal using an adaptive algorithm for deriving coefficients for said adaptive equalizer to compensate for the variations in said receive portion, and for adjusting said adaptive equalizer in accordance with said coefficients to derive a compensated output signal. - View Dependent Claims (19, 20, 21)
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Specification