The 5G New Radio synchronization procedure is the first step that the user must complete to access the mobile network. It mainly consists of the detection of the primary and secondary synchronization signals (PSS and SSS, respectively) and the decoding of the physical broadcast channel (PBCH). Our goal is to provide a comprehensive study of the synchronization procedure and investigate different techniques and approaches, through the implementation of a 5G New Radio-compliant simulator. Of significant interest is the investigation of impairments such as the fading channel, the frequency offset, and the delay spread. The results are provided in terms of detection probability for the PSS and SSS detection, and in terms of block error rate for the PBCH. From the data collected, there is evidence that choosing M-sequences for the PSS leads to an appreciably robust solution against frequency offset. The structure of the Gold sequences for SSS generation can be exploited to reduce the detection complexity, and different approaches can be chosen to improve reliability against delay spread. Moreover, the polar coding for 5G PBCH outperforms the former 4G coding technique, but they are still sensible to frequency offset. Finally, the simulator functionalities are validated through real captures of 5G signals.

5G New Radio 同步过程是用户访问移动网络必须完成的第一步。它主要包括主同步信号和辅同步信号（分别为PSS和SSS）的检测和物理广播信道（PBCH）的解码。我们的目标是通过实施符合 5G 新无线电标准的模拟器，对同步过程进行全面研究，并研究不同的技术和方法。重要的是对衰落信道、频率偏移和延迟扩展等损伤的研究。结果以 PSS 和 SSS 检测的检测概率以及 PBCH 的块错误率的形式提供。从收集的数据来看，有证据表明，为 PSS 选择 M 序列可以带来针对频率偏移的相当稳健的解决方案。可以利用用于 SSS 生成的 Gold 序列的结构来降低检测复杂性，并且可以选择不同的方法来提高针对延迟扩展的可靠性。此外，5G PBCH 的极化编码优于以前的 4G 编码技术，但它们仍然对频率偏移敏感。最后，通过实际捕获 5G 信号来验证模拟器的功能。