| 摘要 |
<p>A transmission apparatus (1) transmits data, and a reception apparatus (2) receives the data. The reception apparatus (2) has: a data reception unit (6) that receives the data, and a reception state notification transmission unit (10) that regularly transmits reception state notification having a range of the sequence numbers of the received data, and the sequence numbers of data not received within the range. The transmission apparatus (1) has: a data transmission unit (5) that transmits the data; a reception state notification reception unit (11) that receives the reception state notification; and a retransmission determining unit (12) that makes the data transmission unit (5) retransmit the data indicated, by means of the transmission state notification, not having been received.</p> |
