METHOD AND DEVICE FOR DECODING TURBO CODES

摘要

The invention concerns a method and a device (20) for decoding a frame capable of being broken down into p subframes each consisting of k information symbols, of first n k redundancy symbols and of last n k redundancy symbols. The decoding process uses two elementary decoders (21, 23) which produce in parallel extrinsic data (Extr_1i, Extr_2i) concerning respectively information symbols and interleaved information symbols. The values of the extrinsic data (Extr_1i, Extr_2i) are refined by cross feedback of said data in input of the decoders (21, 23).