Patent ID: 8693533

Claim:
A method for equalizing a signal received in a receiver of a Terminal Equipment in a wireless communication system, comprising: receiving a signal r at the Terminal Equipment; applying an iterative algorithm to the received signal r to determine a Minimum Mean Square Error (MMSE) equalized signal ŝ MMSE , the iterative algorithm being based on a sequence of varying preconditioning matrices P j in accordance with the following formula: s ^ MMSE ≈ ( ( ∑ k = 1 K ⁢ ∑ j = 1 k ⁢ ( I - P j ⁢ H ) ) + I ) ⁢ P 0 ⁢ r wherein each preconditioning matrix P j in the sequence, other than initial preconditioning matrix P 0 and a final preconditioning matrix P K is determined based on a propagation channel convolution matrix H, the variance of the noise in the channel, and the precedent matrices P j within said sequence.