Research on time and frequency synchronization for 3GPP LTE TDD system over multipath fading channel

The method of time and frequency synchronization for 3GPP long term evolution (LTE) time division duplexing (TDD) system over multipath fading channels is presented in this paper. The energy differential function of received signals and correlation of primary synchronization signal (PSS) are used to obtain accurate symbol timing synchronization and fractional carrier frequency offset in time domain, respectively. By computer simulation, the performance of our approach is evaluated and compared to other existing algorithms over multipath fading channel.