DATA TRANSFER SYSTEM AND DATA TRANSFER METHOD

摘要

In a reception-side device (150), a reception quality measuring unit 157 measures the reception quality of reception data, an error detection unit (156) detects an error, if any, of the reception data, a transmission frame creation unit (158) multiplexes a re-transmission request signal and a reception quality signal to transmission data when an error is detected and sends the transmission data. When a transmission-side device (100) receives the re-transmission request signal, a scheduling unit (110) measures the capacity necessary for the reception-side device (150) to demodulate the data, from the reception quality signal, and transmits again the data with the capacity. As a result, the number of data re-transmissions between the transmission and the reception can be reduced to improve the transmission efficiency.