| 摘要 |
<p>Provided are a Polar code decoding method and decoding device. A reliable subset is marked off from an information bit set of a Polar code, and the reliability of the information bits of the reliable subset is higher than that of other information bits. The method comprises: obtaining a probability value or LLR of a current decoding bit of the Polar code; when the current decoding bit belongs to the reliable subset, judging according to the probability value or LLR of the current decoding bit to determine the decoding value of the current decoding bit, keeping the number of the decoding paths of the Polar code unchanged, and modifying the probability values of all the decoding paths using the probability value or LLR of the current decoding bit; and obtaining the probability values of the decoding paths through calculation according to the probability value or LLR of the decoding bit of the Polar code. The embodiments of the present invention judge the information bits of a reliable subset without splitting decoding paths, thereby reducing the overall decoding complexity.</p> |
