Patent ID: 7110378
Filing Date: 2006-09-19
Classification: H04L

Abstract:
1. A method for managing the usage of a wideband space-time multipath channel having plural orthogonal sub-channels in a communication system including a transmitter having one or more transmit antennas, a receiver having one or more receive antennas, and one or more signal propagation paths between each of said one or more transmit antennas and each of said one or more receive antennas, and having channel state information available at the transmitter, said method comprising: estimating a channel for each signal propagation path; coherently combining a received signal using the channel estimates across all the receive antennas; obtaining a closed-form orthogonal decomposition of the overall effective space-time channel after coherently combining the channel estimates, thereby determining one or more orthogonal sub-channels; and selecting one or more of the determined orthogonal sub-channels for communicating information between the transmitter and the receiver.