| 摘要 |
A system for processing a data signal (such as an ADSL or VDSL signal) includes a demodulator, a first decoder unit, such as a convolutional encoder or a QAM decoder, for receiving the output of the demodulator, decoding the second level of encoding and outputting a decoded signal and a first error indication signal indicative of errors in the decoded signal. The decoded signal is passed through a de-interleaving unit to form a de-interleaved signal. The first location signal is passed to an identifier unit which receives it, and from it produces a second error indication signal indicative of the errors in the de-interleaved signal. The de-interleaved signal and the second error indication signal are transmitted to a redundancy decoder which employs them to perform redundancy decoding.
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