A comprehensive study on the synchronization procedure in 5G NR with 3GPP-compliant link-level simulator

IF 2.3 4区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC EURASIP Journal on Wireless Communications and Networking Pub Date : 2023-10-27 DOI:10.1186/s13638-023-02317-5

Riccardo Tuninato, Daniel Gaetano Riviello, Roberto Garello, Bruno Melis, Roberto Fantini

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Abstract

Abstract 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.

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基于3gpp链路级模拟器的5G NR同步过程综合研究

5G新无线电同步过程是用户接入移动网络必须完成的第一步。它主要包括主同步信号和从同步信号(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现5G新无线电兼容模拟器，对同步过程进行全面研究，并研究不同的技术和方法。值得关注的是对衰落信道、频率偏移和延迟扩展等损伤的研究。结果以PSS和SSS检测的检测概率和PBCH的块错误率提供。从收集到的数据来看，有证据表明，为PSS选择m序列会导致对频率偏移的显着鲁棒解决方案。利用生成SSS的Gold序列的结构可以降低检测复杂度，并可以选择不同的方法来提高抗延迟扩展的可靠性。此外，5G PBCH的极性编码优于以前的4G编码技术，但它们仍然对频率偏移敏感。最后，通过5G信号的真实捕获验证了模拟器的功能。

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来源期刊

EURASIP Journal on Wireless Communications and Networking 工程技术-电信学

CiteScore

7.70

自引率

3.80%

发文量

109

审稿时长

8.0 months

期刊介绍： The overall aim of the EURASIP Journal on Wireless Communications and Networking (EURASIP JWCN) is to bring together science and applications of wireless communications and networking technologies with emphasis on signal processing techniques and tools. It is directed at both practicing engineers and academic researchers. EURASIP Journal on Wireless Communications and Networking will highlight the continued growth and new challenges in wireless technology, for both application development and basic research. Articles should emphasize original results relating to the theory and/or applications of wireless communications and networking. Review articles, especially those emphasizing multidisciplinary views of communications and networking, are also welcome. EURASIP Journal on Wireless Communications and Networking employs a paperless, electronic submission and evaluation system to promote a rapid turnaround in the peer-review process. The journal is an Open Access journal since 2004.