Polar code encoding method and apparatus in wireless communications

A polar code encoding apparatus, comprising:

• a memory storage comprising instructions;
• and
• a processor in communication with the memory, wherein the processor is configured to execute the instructions to perform the steps:
• obtaining a first sequence used to encode K to-be-encoded bits, the first sequence comprising reliability sequence numbers of N polarized channels, K is a positive integer, K≤N, N=512;
• selecting reliability sequence numbers of K polarized channels from the first sequence;
• performing polar code encoding on the K to-be-encoded bits based on the selected reliability sequence numbers of the K polarized channels, to obtain a bit sequence after encoding;
• and
• outputting, by the encoding apparatus, the bit sequence after encoding to a receiving device;
• wherein the first sequence is the sequence shown in Sequence Z12 or Table Z12 in the specification.

An apparatus, comprising:

• an input interface circuit, configured to obtain K to-be-encoded bits;
• a logic circuit, configured to:
• obtain, by an encoding apparatus, a first sequence used to encode K to-be-encoded bits, the first sequence comprising reliability sequence numbers of N polarized channels, K is a positive integer, K≤N, N=512;
• select, by the encoding apparatus, reliability sequence numbers of K polarized channels from the first sequence;
• perform, by the encoding apparatus, polar code encoding on the K to-be-encoded bits based on the selected reliability sequence numbers of the K polarized channels, to obtain a bit sequence after encoding;
• and
• an output interface circuit configured to output the bit sequence after encoding to a receiving device;
• wherein the first sequence is the sequence shown in Sequence Z12 or Table Z12 in the specification.