发明名称 Retransmission control method and apparatus for use in OFDM radio communication system
摘要 A retransmission control apparatus for use in a radio communication system that uses an orthogonal frequency division multiplexing technique, the apparatus comprising a transmitter which transmits to a radio station a data sequence, which serves as communication data that has been transformed into a time waveform of an orthogonal frequency division multiplexing symbol; a receiver which receives from the radio station a retransmission request for retransmitting the communication data; a transformation mechanism configured to transform, in response to the retransmission request, the data sequence of the communication data to be retransmitted into an orthogonal frequency division multiplexing symbol having a time waveform different from the time waveform of the orthogonal division multiplexing symbol which had been sent before the retransmission request; and a retransmitting mechanism configured to retransmit the communication data transformed by the transformation mechanism to the radio station. Since the time waveform of the resulting OFDM data symbol after the retransmitting operation is changed from that before the retransmitting operation, it is highly likely that the average power of the transmitting signal is increased. As a result, the occurrence of errors when the data sequence is retransmitted is reduced, thereby improving the throughput.
申请公布号 US7190689(B2) 申请公布日期 2007.03.13
申请号 US20020316071 申请日期 2002.12.11
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 SATO KAZUMI;NAMEKATA MINORU;SERIZAWA MUTSUMI
分类号 H04B7/208;H04L1/16;H04J11/00;H04L1/18;H04L25/03;H04L27/26 主分类号 H04B7/208
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