Patent ID: 8477858
Filing Date: 2013-07-02
Classification: H04L,H04W

Abstract:
1. A method for transmitting data by a transmitter over multiple transmission channels to a receiver in a wireless multiple-input multiple-output (MIMO) multi-channel communication system that uses orthogonal frequency division modulation (OFDM), comprising: selecting a plurality of available transmission channels for use for data transmission, wherein the selected transmissions channels have signal-to-interference-plus-noise ratios at or above a threshold value, wherein the signal-to-interference-plus-noise ratios are calculated based on channel state information (CSI) received from the receiver; coding and modulating data for transmission over the selected transmission channels using a common coding and modulation scheme selected from a plurality of available coding and modulation schemes to provide modulation symbols, the common coding and modulation scheme resulting in approximately the same bit rate for each selected channel; weighting the modulation symbols for each selected transmission channel based on channel state information (CSI) for the selected channels, in an effort to distribute the total available transmit power across the selected transmission channels to achieve similar received signal quality at the receiver; and transmitting the weighted modulation symbols on the selected transmission channels.