Embodiments of the present invention provide a rate matching method and rate matching apparatus for Polar codes. The method comprises: performing matrix-based BRO interleaving of non-system Polar codes output by a Polar code encoder, so as to obtain interleaved bits; and determining an output sequence of rate matching according to the interleaved bits. In the embodiments of the present invention, matrix-based BRO interleaving of non-system Polar codes is performed, and an output sequence of rate matching is obtained; in this manner, an interleaved sequence structure is more random, an FER can be reduced, HARQ performance can be improved and the reliability of data transmission can be ensured.
展开▼
