Method and System for Low Complexity Conjugate Gradient Based Equalization in a Wireless System
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Abstract
Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached.
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Citations
50 Claims
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1-30. -30. (canceled)
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31. A method for processing wireless signals, comprising:
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receiving first and second wireless signals comprising information transmitted from one or more transmit antennas; generating a correlation vector that corresponds to said first wireless signal correlated with a complex conjugate of said second wireless signal; and updating an equalizer tap according to said correlation vector upon determining that a signal-to-noise ratio (SNR) requirement is satisfied. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A system for processing wireless signals, comprising:
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one or more receive ports configured to receive first and second wireless signals comprising information transmitted from one or more transmit antennas; a correlator configured to generate a correlation vector that corresponds to said first wireless signal correlated with a complex conjugate of said second wireless signal; and a conjugate gradiant tap optimizer (CGTO) configured to update an equalizer tap according to said correlation vector upon determining that a signal-to-noise ratio (SNR) requirement is satisfied. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification