| 摘要 |
<p>A soft output decoding method and apparatus for convolutional codes. After computing the number of states times I beta ( beta t SIMILAR beta t-D+1) for a truncated length, the soft output outside the truncated length is sequentially computed, as next following I beta ( beta t-D SIMILAR beta t-2D+1) outside the next following truncated length is computed, at the same time as I beta of the next truncated length is sequentially computed. In this manner, a decoder 4 performs computation of I beta within the truncated length and computation of I beta retrogressive by not less than the truncated length, as parallel processing, as a result of which the computation of I beta per clock is the number of states x2 to reduce the volume of computation to expedite the decoding. <IMAGE></p> |
