Patent ID: 7263123
Filing Date: 2007-08-28
Classification: H04L

Abstract:
1. A method for computing Decision Feedback Equalizer (DFE) coefficients, the method comprising: estimating the channel response of a channel operated upon by the DFE; formulating a solution that, when solved, will yield the DFE coefficients, wherein the solution is formulated as a least squares problem that is based upon the channel response; solving the least squares problem to yield Feed Forward Equalizer (FFE) coefficients of the DFE coefficients, wherein solving the least squares problems includes: selecting a delay of the DFE; when the delay is less than or equal to a number of taps of the FFE minus one, performing a first set of operations; and when the delay is greater than the number of taps of the FFE minus one, performing a second set of operations; and convolving the FFE coefficients with a convolution matrix that is based upon the channel response to yield Feed Back Equalizer (FBE) coefficients of the DFE coefficients.