Extracting soft information in a block-coherent communication system

The data communications on the block coherent channel in a communications system are indicated. The low complexity recovery technique which makes outstanding performance possible is indicated. The group of a dwelling synchronized signal (323), for example, the transmitted block coherent symbol containing the known symbol (for example, false pilot symbol), A soft input, a soft output, and interleaving of a message are used, and it is received, got over and (204) decoded by the common decoder / demodulator (311 and 313). The low complexity SISO demodulator (204) is suitable for processing the false pilot abnormal-conditions information corresponding to each of one or more dwellings (323). When turbo equalization is used, the low complexity method attains the outstanding performance. Some decodings and the enforcement form of the recovery contain the independent phase point estimate and updated independent phase point estimate according to an exogenous law, in order to generate a soft symbol value and a soft bit.