| 摘要 |
PROBLEM TO BE SOLVED: To reduce a feedback amount from a receiver to a transmitter while suppressing a deterioration in communication quality in a MIMO-OFDM communication. SOLUTION: A transmission antenna pattern calculating means 1a of the receiver 1 calculates combination patterns of transmission data streams ds<SB>1</SB>to ds<SB>n</SB>of the transmitter 2 and transmission antennas 2c<SB>1</SB>to 2c<SB>n</SB>for transmitting the transmission data streams ds<SB>1</SB>to ds<SB>n</SB>in each subcarrier. A transmission antenna pattern extracting means 1b blocks the combination patterns calculated by the transmission antenna pattern calculating means 1a in each of a plurality of subcarriers and extracts one combination pattern from the blocked combination patterns. A feedbacking means 1c feedbacks the combination pattern extracted by the transmission antenna pattern extracting means 1b to the transmitter 2. COPYRIGHT: (C)2009,JPO&INPIT
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