| 摘要 |
A method for providing retransmission signals using multi-carrier code division multiple access is disclosed. The method comprises receiving a serial data stream in response to the failed prior reception of the serial data stream, and converting the serial data stream to a parallel data stream, the parallel data stream having a plurality of symbols having a symbol sequence. The method also comprises performing spreading on the parallel data stream by spreading each of the plurality of symbols of the parallel data stream with a spreading code, the spreading code having a plurality of chips having a chip sequence, and performing multi-carrier modulation on the parallel data stream by modulating each of the plurality of symbols of the parallel data stream to a plurality of subcarriers and generating a plurality of modulated signals. The method further comprises grouping the plurality of modulated signals for the plurality of symbols of the parallel data stream into a retransmission signal, and reordering, prior to the modulation of the parallel data stream, the parallel data stream by reordering at least one of the symbol sequence of the plurality of symbols and the chip sequence of the plurality of chips.
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