Apparatus and method for channel coding in communication system

An apparatus, comprising:

• one or more memories configured to store program instructions;
• and
• one or more processors coupled to the one or more memories and configured to execute the program instructions;
• wherein the program instructions cause the apparatus to:
• obtain an input sequence, wherein the input sequence comprising K bits, and K is a positive integer;
• encode the input sequence using a matrix H, to obtain an encoded sequence;
• and
• output the encoded sequence;
• wherein the matrix H is determined according to a base matrix and a lifting factor Z;
• wherein the base matrix comprises m rows and n columns, m and n are integers, and 5≤m≤46, and 27≤n≤68;
• wherein elements in the base matrix are represented by row index i and column index j, 0≤i<m, 0≤j<n;
• wherein an element Vi,j of the base matrix is a non-zero-element when:
• i=0, j=0, 1, 2, 3, 5, 6, 9, 10, 11, 12, 13, 15, 16, 18, 19, 20, 21, 22, or 23;
• i=1, j=0, 2, 3, 4, 5, 7, 8, 9, 11, 12, 14, 15, 16, 17, 19, 21, 22, 23, or 24;
• i=2, j=0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 17, 18, 19, 20, 24, or 25;
• i=3, j=0, 1, 3, 4, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 20, 21, 22, or 25;
• i=4, j=0, 1, 26.