FIELD: physics.
SUBSTANCE: group of inventions relates to mobile radio interface technologies and can be used for encoding and decoding low-density parity check (LDPC) codes. Method comprising steps of: receiving a vector 
of a source word string 1 x K and generating a code word vector 
1 x N, where G is a K x N generator matrix, and G is obtained from the parity check matrix Hn, Hn has a lifting coefficient Z, and Hn has a plurality of submatrices, wherein each submatrix has a size Z x Z, wherein at least one submatrix has m1 diagonals "1", where m1 is an integer >=2, where K = 588, and the new matrix Hn contains 84 lines x 672 columns.
EFFECT: technical result is creation of new matrix for encoding and decoding of codeword.
13 cl, 34 dwg
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