SISO decoder with stopping criteria that are based on sub-block processing and sub-block

摘要

This invention repeatedly decodes the block of the information symbol r which is received, it is the SISO decoder in order to use in the especially turbo decoder it is something regarding the SISO decoder where the above-mentioned block is divided into some windows of information symbol. Because the decrease whose electricity consumption is considerable is actualized, for SISO decoding of the information symbol r which the window receives it possesses one SISO decoding unit 17,21 at least, the SISO decoder where stop standard is applied to each window is proposed. When convergence of one time decoding is decided by making the window or subblock 17,23 inactive, it repeats this, individually in regard to each window and discontinues decoding. The inactive window SISO is already not decoded at the time of repeating from now on.