SPEED MATCHING METHODS FOR LDPC-CODES Russian patent published in 2020 - IPC H03M13/11 

FIELD: wireless communication equipment.

SUBSTANCE: group of inventions relates to wireless communication and can be used for rate matching for low density parity check (LDPC) codes. Method comprises generating a codeword vector by encoding a set of information bits with a low-density parity check code, wherein codeword vector is composed of systematic bits and parity bits; and performing the rate matching based on the circular buffer on the generated codeword vector to form the encoded bits for transmission, wherein the rate matching based on the circular buffer comprises puncturing the first plurality of systematic bits, and writing the second plurality of systematic bits and parity bits to the circular buffer, wherein puncturing of the first plurality of systematic bits comprises non-completion of recording the first plurality of systematic bits in a circular buffer.

EFFECT: technical result is simplification of rate matching for actual code size required for a specific transmission.

42 cl, 14 dwg