Coding method, decoding method, apparatus, and device

A decoding method, comprising:

• receiving a rate-matched sequence;
• rate de-matching on the rate-matched sequence to obtain a to-be-decoded sequence;
• and
• decoding and checking the to-be-decoded sequence to obtain an information bit sequence, wherein the to-be-decoded sequence comprises an information bit, a frozen bit, a cyclic redundancy check (CRC) check bit, and a frozen check bit;
• and a check value of the frozen check bit and a check value of the CRC check bit.

A device, comprising a memory, a processor, a transmitter, and a computer program, wherein the computer program is stored in the memory, and the processor is configured to:

• obtain a to-be-encoded information bit sequence;
• encode the to-be-encoded information bit sequence to obtain an encoded bit sequence, wherein the encoded bit sequence comprises an information bit, a frozen bit, a cyclic redundancy check (CRC), bit, and a frozen check bit;
• and a value of the frozen check bit and a value of the CRC check bit;
• perform polar coding and rate matching on the coded bit sequence to obtain a to-be-sent rate-matched sequence.

A device, comprising a memory, a processor, a receiver, and a computer program, wherein the computer program is stored in the memory, and the processor is configured to:

• receive a rate-matched sequence;
• rate de-match on the rate-matched sequence to obtain a to-be-decoded sequence;
• and
• decode and check the to-be-decoded sequence to obtain an information bit sequence, wherein the to-be-decoded sequence comprises an information bit, a frozen bit, a cyclic redundancy check (CRC) check bit, and a frozen check bit;
• and a check value of the frozen check bit and a check value of the CRC check bit.