Encoding method, decoding method, communication device, and computer-readable storage medium

The embodiment of the application discloses an encoding method, a decoding method, a communication device, and a computer-readable storage medium. The application is applied to a wireless local area network system supporting IEEE802.11be Wi-Fi protocol, Wi-Fi8 and other 802.11 series protocols. It can also be applied to a UWB-based wireless personal area network system. The method includes: performing LDPC encoding on the bit sequence according to a check matrix set to obtain a coded sequence; sending a data packet obtained based on the coding sequence. The check matrix set includes a first check matrix and a second check matrix. The first check matrix is a check matrix obtained by extending a base matrix by using a first set of cyclic shift values, and the second check matrix is a check matrix obtained by extending the base matrix by using a second set of cyclic shift values. The second set of cyclic shift values is obtained by using the first set of cyclic shift values. The cyclic shift value stored at the