Exploiting the redundancy on bit-level, the paper is proposed iterative algorithm based on soft-in/soft-out channel and parameter estimation, and applies the algorithm to GSM EFR system.

• 该文在比特级上利用信源编码参数的冗余信息在软输入、软输出信道解码和信源参数估计之间进行迭代运算,并将此联合解码算法运用于GSM EFR系统。