Patent ID: 7711066
Filing Date: 2010-05-04
Classification: H04L

Abstract:
1. A multi-input multi-output (MIMO) communications system for conveying signals over a MIMO channel, the system comprising: a precoder for precoding a signal based upon a uniform channel decomposition scheme using a precoder matrix, the precoder being configured to generate the precoder matrix by multiplying a first matrix, a second matrix, and a third matrix, the first matrix determined at least in part from a singular value decomposition of a channel matrix corresponding to the MIMO channel, the second matrix having a plurality of diagonal terms, each diagonal term corresponding to a power allocation to a respective one of a plurality of subchannels of the MIMO channel, the third matrix determined at least in part from a geometric mean decomposition of a diagonal matrix; and a transmitter in communication with the precoder for conveying the precoded signal over a subchannel of the MIMO channel.