A Joint PSS Detection and Frequency Offset Estimation Algorithm for 5G NR Communication

In this work, we propose a novel and robust algorithm for the combined detection of primary synchronization signal (PSS) and frequency offset correction for a fifth-generation (5G) new radio (NR) communication system. The proposed algorithm exploits the periodicity property inherent in the PSS of a 5G NR communication system and yields a low probability of false detection values in the presence of fading conditions and at low signal-to-noise ratio values such as -6 dB. The proposed method can be used to accurately detect the complete frequency offset compared to the typical methods that separately estimate integer and fractional frequency offsets. Further, through simulation, we demonstrate the performance and robustness of the proposed algorithm for 5G NR communication systems.