MIMO COMMUNICATION METHOD, MIMO TRANSMITTER APPARATUS AND MIMO RECEIVER APPARATUS

摘要

A MIMO communication method, a MIMO transmitter apparatus and a MIMO receiver apparatus wherein the throughput is improved. In the MIMO transmitter apparatus (100), for a transmission weight candidate exhibiting the maximum estimated reception quality, an excessive quality determining part (145) calculates a reception quality excess amount by determining the difference between a first threshold value (Th1) and the minimum value of estimated reception quality corresponding to the same modulation scheme as the highest-order modulation scheme corresponding to the maximum value of estimated reception quality, and further calculates a reception quality shortage amount by determining the difference between a second threshold value (Th2) and the minimum value of estimated reception quality. When the reception quality excess amount is greater than the reception quality shortage amount, a weight deciding part (150) calculates reception quality excess amounts and reception quality shortage amounts for all transmission weight candidates, and selects a transmission weight to be used from among other transmission weight candidates, the reception quality excess amounts of which are plus and the reception quality shortage amounts of which are minus.