Method and device for transmitting data

A method for processing data by a communication apparatus, comprising:

• obtaining a bit sequence, wherein the bit sequence comprises K bits of information, and K is a positive integer;
• encoding the bit sequence to obtain a first encoded sequence, wherein the first encoded sequence comprises N bits, N is greater than or equal to K, and N is an integer power of 2;
• dividing the first encoded sequence into S bit groups that are of equal length, wherein S is a positive integer;
• interleaving the first encoded sequence in bit groups based on a symmetrical sequence to obtain an interleaved bit sequence of N bits;
• obtaining a target code length M, wherein M is a positive integer;
• and
• performing rate matching on the interleaved bit sequence to obtain and output a second bit sequence of M bits.

A non-transitory computer-readable storage medium, configured to store computer instructions, when the computer instructions are executed in a computer, the computer is enabled to:

• obtain a bit sequence, wherein the bit sequence comprises K bits of information, and K is a positive integer;
• encode the bit sequence to obtain a first encoded sequence, wherein the first encoded sequence comprises N bits, N is greater than or equal to K, and N is an integer power of 2;
• divide the first encoded sequence into S bit groups that are of equal length, wherein S is a positive integer;
• interleave the first encoded sequence in bit groups based on a symmetrical sequence, to obtain an interleaved bit sequence of N bits;
• obtain a target code length M, wherein M is a positive integer;
• and
• perform rate matching on the interleaved bit sequence to obtain and output a second bit sequence of M bits.