Transmission apparatus, reception apparatus, and transmission/reception method for same

A transmission apparatus, having a retransmission function which transmits new data or retransmits previously transmitted data based on normal/abnormal reception result data sent from a reception apparatus, the transmission apparatus comprising:

• a receiver which receives data transmission interval modification requests sent from the reception apparatus;
• a transmission interval controller which determines a data transmission interval based on the transmission interval modification requests, and controls transmission of new transmission data or retransmission of previously transmitted data to the reception apparatus based on the determined transmission interval;
• and
• a scheduler which determines the transmission timing for a plurality of reception apparatus, wherein
• the transmission interval controller performs data transmission according to the transmission timing indicated by the scheduler, but when the transmission timing indicated by the scheduler is faster than the transmission timing based on transmission interval modification requests from the respective reception apparatus, performs data transmission according to the transmission timing based on the transmission interval modification requests from the respective reception apparatus.

A reception method of performing, in a reception apparatus, processing to receive data sent from a transmission apparatus having a retransmission function, processing to perform error detection and decoding of the data, and processing to transmit error detection results to the transmission apparatus, the method comprising:

• repeatedly performing decoding processing of data in a decoding processor;
• performing error detection of decoding results, and transmitting to the transmission apparatus error detection results for the decoding results for a preset number of times;
• issuing to the transmission apparatus a request for data transmission interval modification, based on the data reception characteristic;
• and,
• inputting selectively, to the decoding processor, data received from the transmission apparatus and previous decoding result data.

A transmission method for a transmission apparatus having a retransmission function for transmitting new data or retransmitting previously transmitted data based on normal/abnormal reception result data received from a reception apparatus, the method comprising:

• receiving, from a reception apparatus, a transmission interval modification request signal requesting modification of a data transmission interval;
• determining the data transmission interval based on transmission interval modification request signals;
• and
• transmitting new transmission data, or previously transmitted data, to the reception apparatus, based on the determined transmission interval,
• wherein data transmission is performed according to transmission timing indicated by a scheduler, but when the transmission timing indicated by the scheduler is faster than the transmission timing based on the transmission intervals requested from each of a plurality of reception apparatus, the data transmission is performed according to the transmission timing based on the transmission interval requested by each of the reception apparatus.