Detection method for bad or unreliable code word blocks in digital transmission system encoding decoded code word blocks and carrying out parity check of encoder output with decoder input

摘要

The method involves providing code words (E) in blocks and decoding the code words using a decoder (D). The output words of the decoders are encoded using an encoder (C). The code words at the encoder output are checked for parity (P) with the code words at the decoder input. The detection of bad code word blocks occur depending on the parity check. Independent claims are also provided for an arrangement that detects bad or unreliable code word blocks and for a terminal unit, especially mobile radio terminal.