| 摘要 |
An ACS calculation is performed with received data and when the punctured process has not been performed, a trace-back process is performed in a loop. In this case, a punctured pattern of which data received at one time point, in those at three time points that have not been punctured, is used. Thus, the trace-back process is performed for the data at the time point. With the trace-back process performed once, decoded data at three time points including punctured data at two time points is generated. Since the trace-back process is not performed with punctured data as the start point, an error of decoded data can be prevented or suppressed.
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