Patent ID: 7894516
Filing Date: 2011-02-22
Classification: H04L

Abstract:
1. A method for equalizing a digital signal received via at least one communication channel, comprising: the signal values of the received digital signal are grouped into at least one block of received signal values; the at least one block of received signal values is processed by an iterative equalizer; in two or more iterations, a block of equalized signal values for the block corresponding to a current iteration is generated; in two or more iterations the block of equalized signal values corresponding to a previous iteration is processed by a feedback unit which performs a multiplication by a first matrix; in two or more iterations the at least one block of received signal values is processed by a feed-forward unit which performs a multiplication by a second matrix; in two or more iterations, the first matrix is updated; in two or more iterations, the second matrix is updated; in two or more iterations, the block of equalized signal values corresponding to the current iteration is determined based on the combination of the output of the feed-forward unit and the output of the feedback unit for the current iteration; wherein the first matrix and the second matrix are updated based on a correlation between the block of equalized signal values corresponding to a previous iteration and the block of received signal values.