Channel interleaving method and apparatus

A channel interleaving method of a polar (Polar) code, the method being performed by a receive end device, wherein the receive end device comprising a processing apparatus configured to perform the method, and the method comprising:

• determining an M_r-row and M_c-column matrix used for interleaving, wherein
• column sequence numbers of the matrix are represented by:
• [0, 1, . . . , ic, . . . , M_c−1], wherein ic is greater than or equal to 0, and is less than or equal to M_c−1;
• and
• row sequence numbers of the matrix are represented by:
• [0, 1, . . . , ir, . . . , M_r−1], wherein ir is greater than or equal to 0, and is less than or equal to M_r−1;
• writing to-be-interleaved bits into the matrix;
• and
• permutating, based on permutation patterns of the column sequence numbers and/or permutation patterns of the row sequence numbers, the matrix into which the to-be-interleaved bits are written, wherein
• the permutation patterns of the column sequence numbers are represented by:
• [Pc(0), Pc(1), . . . , Pc(ic), . . . , Pc(M_c−1)], wherein Pc(ic) is obtained by performing pruned bit reverse (PBR, pruned bit reverse))based mapping on column sequence number ic;
• and
• the permutation patterns of the row sequence numbers are represented by:
• [Pr(0), Pr(1), . . . , Pr(ir), . . . , Pr(M_r−1)], wherein Pr(ir) is obtained by performing pruned bit reverse (PBR, pruned bit reverse)—based mapping on row sequence number ir;
• and reading interleaved bits from the permutated matrix.