HYBRID AUTOMATIC REQUEST FOR REPEATING WITH THE POLAR CODE METHOD AND DEVICE AND A WIRELESS COMMUNICATION DEVICE Russian patent published in 2018 - IPC H04L1/00 

FIELD: communication equipment.

SUBSTANCE: invention relates to the field of communication. Method comprises the stages of: selection, from the M polar codes of the same code length and code rate, polar code corresponding to the actual code rate for the first transmission, and the bit sequence information encoding by using the polar code to obtain the encoded bits; and performing the bit rate matching on the coded bits to generate to be transmitted bits. Unlike using the single polar code traditional HARQ technology, in this embodiment, corresponding to the actual code rate for the first transmission polar code, is selected from the M polar codes during the initial transmission so, that different polar codes can be adaptively selected according to the actual code rate for the first transmission.

EFFECT: improvement in the first (initial) transmission characteristics by decrease in the difference between the actual code rate for the first transmission and corresponding to the polar code target code rate.

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