Using SISO decoder feedback to produce symbol probabilities for use in wireless communications that utilize single encoder turbo coding and transmit diversity

摘要

An apparatus and method for transmitting and receiving a bit stream. On the transmission side, coded bits (Y.sub.t) and an interleaved version of the coded bits (X.sub.t) are separately modulated and transmitted. On the reception side, a priori output probabilities produced by a probability generator ( 34 ) are combined ( 112 ) and then input to a SISO decoder ( 111 ). Combined a posteriori output probabilities ( 115 ) produced by the SISO decoder are split ( 113 ) and then fed back to the probability generator.