FIELD: electricity.
SUBSTANCE: invention relates to the field of electrical communications. Perform likelihood ratio metrics and combine them between at least two different attempts to transmit a block of data for both the coded bits and non-coded bits of the data block. In this case, the calculation of likelihood ratio metrics for non-coded bits is performed taking into account the result of decoding the coded bits. Receiver's decision on the transmitted values of the non-coded bits is made based on the values of the combined likelihood ratio metrics for the non-coded bits.
EFFECT: reducing the computational complexity of the demodulator and the processing modules of the received symbols while preserving noise immunity due to the joint implementation of the hybrid automatic re-transmission request scheme and multi-level coding with no coding for part of the information bits.
9 cl, 4 dwg
