TURBO DECODER WITH STAKE HERITAGE FOR DATA BLOCK REDUNDANT VERSION DECODING

摘要

An iterative decoding device (ITD) for a communication receiver comprises: i) a means (SISO1, SISO2, DI1, DI2, I1, I2) for decoding received encoded data blocks by means of a so-called next iteration initialization mechanism, a control means (CM) arranged to choose one of the first and second hard decision bits in order for the validity of a CRC field, associated to this received data block, to be checked, and Ëi) a first memory means (M1). The control means (CM) is also arranged, when the CRC field of a block is invalid, —to order the decoding means to store the final stakes associated to the block in the first memory means (M1), —to require the transmission of a redundant version of the block, and —when the redundant version is received, to initialize the decoding means (SISO1) with the stored final stakes before it applies the next iteration initialization mechanism to the received redundant version.