One kind of fast decoding method, apparatus and OvXDM system applied to OvXDM system

摘要

This application discloses a fast decoding method and device suitable for an OvXDM system, and an OvXDM system. According to this method, there is no need to traverse all state nodes and expanded paths of the state nodes in a decoding process, and only some state nodes and paths are selected through measure sorting for expansion. Therefore, the decoding complexity can be greatly reduced and decoding efficiency is improved. The decoding complexity does not increase drastically as a number K of times of overlapped multiplexing increases, as in a conventional decoding solution. This resolves the problem that the spectral efficiency conflicts with the decoding complexity and the decoding efficiency.