Patent ID: 7095812
Filing Date: 2006-08-22
Classification: H04L

Abstract:
1. A method of iteratively demapping and decoding two or more received signals into data, the method comprising the steps of: for a first iteration, (a) demapping, with a multi-input, multi-output (MIMO) demapper, a sequence of encoded data from the received signals as a set of minimized cost function error (MCFE) estimates; (b) generating MCFE likelihood values for the set of MCFE estimates based on a set of corresponding variances; (c) calculating, for the set of MCFE estimates, a set of probabilities of correct decision based on the MCFE likelihood values; (d) setting fewer than all of the estimates in the set of MCFE estimates as hard decisions based on the set of probabilities of correct decision; and (e) calculating a set of maximum a posteriori (MAP) likelihood values based on the one or more MCFE estimates not set as hard decisions in step (d).