Communication method and apparatus utilizing polar encoding and decoding based on channel capacity

A network device comprising:

• at least one non-transitory memory configured to store a computer program;
• and
• at least one processor, wherein when executing the computer program, the at least one processor is configured to:
• obtain to-be-encoded first information comprising a first information bit set and a second information bit set,
• wherein bits comprising the first information bit set are able to be obtained through a decoding process at each of a plurality of terminal devices, and
• wherein bits comprising the second information bit set are able to be obtained through correct a decoding process at less than all of the plurality of terminal devices;
• perform first polar encoding on the first information bit set to obtain first encoded information;
• perform second polar encoding on the second information bit set based on the first encoded information to obtain second encoded information;
• and
• output the first and second encoded information for transmission to each of the plurality of terminal devices.

A terminal device comprising:

• at least one non-transitory memory configured to store a computer program;
• and
• at least one processor, wherein when executing the computer program, the at least one processor is configured to:
• receive information from a network device, wherein the information includes first and second information bit sets;
• perform first polar decoding on the received information to obtain the first information bit set;
• determine from the first polar decoding of the received information whether the received information includes further information for decoding;
• and
• based on determining the received information includes more information for decoding, perform second polar decoding on the received information to obtain a second information bit set.