Patent ID: 9025691
Filing Date: 2015-05-05
Classification: H04B,H04L

Abstract:
1. A method, comprising: first determining a filter matrix for a plurality of transmission antennas by a channel equalizer of a first receiver processing chain of an iterative receiver; wherein the iterative receiver comprises at least the first receiver processing chain and a second receiver processing chain cross-coupled to one another; wherein the first determining comprises performing a first QR decomposition on a first extended matrix for a first iteration through the first receiver processing chain to provide the filter matrix; feeding log-likelihood ratio (“LLR”) information from the second receiver processing chain to the first receiver processing chain for a second iteration through the first receiver processing chain; obtaining symbol information from the LLR information; canceling interference using the symbol information obtained to provide residual information; updating the channel equalizer with the symbol information; providing the residual information to the channel equalizer; and second determining a plurality of user matrices corresponding to the plurality of transmission antennas by the channel equalizer; wherein the second determining comprises: