Article ID: 2020EBT0004
This paper presents the physical-layer cell identity (PCID) detection probability using the primary synchronization signal (PSS) and secondary synchronization signal (SSS) for the New Radio (NR) radio interface considering a large frequency offset and high Doppler frequency in multipath Rayleigh fading channels in the 28-GHz band. Simulation results show that cross-correlation based PSS detection after compensating for the frequency offset achieves higher PCID detection probability than autocorrelation based PSS detection at the average received signal-to-noise power ratio (SNR) values below approximately 0 dB for the frequency stability of a user equipment (UE) oscillator of ε = 5 ppm. Meanwhile, both methods achieve almost the same PCID detection probability for average received SNR values higher than approximately 0 dB. We also show that even with the large frequency offset caused by ε = 20 ppm, the high PCID detection probability of approximately 90 (97) % and 90 (96) % is achieved for the cross-correlation or autocorrelation based PSS detection method, respectively, at the average received SNR of 0 dB for the subcarrier spacing of 120 (240) kHz. We conclude that utilizing the multiplexing scheme for the PSS and SSS and their sequences is effective in achieving a high PCID detection probability considering a large frequency offset even with the frequency deviation of ε = 20 ppm in the 28-GHz band.
