ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TIMING SYNCHRONIZATION

摘要

STiMi is a mobile multimedia broadcasting trade standard that is released by the Chinese State Administration of Radio Film and Television (SARFT). An efficient timing synchronization strategy for STiMi based on its special frame structure is disclosed. Such scheme consists of two stages, time slot detection and fine timing synchronization. The time slot detection has an important purpose of acquiring a coarse position for one time slot. The second stage is to finely adjust the FFT window based on the estimated time domain CIR. The effectiveness of the disclosed scheme is verified by simulation results. It is demonstrated that this approach can effectively handle channels with long delay spread as well as small pre-echoes.