A joint detection algorithm of integer frequency offset estimation and cell ID based on 5G-NR-V2X

According to the characteristics of Sidelink synchronization signal in 5G-NR-V2X system, a joint detection algorithm of integer carrier frequency offset (ICFO) and Sidelink Primary Synchronization Signal (S-PSS) in 5G system is proposed in this paper. This paper uses the characteristics of two consecutive OFDM symbols of S-PSS in time domain, after Fourier transform (FFT), through the differential average correlation of S-PSS, and then carries out the joint detection of ICFO and S-PSS. Through simulation analysis and comparison, this algorithm not only achieves the expected target detection performance, but also reduces the complexity compared with the traditional algorithm.