Low-Complexity 5G NR PSS Detection Algorithm 


Vol. 45,  No. 4, pp. 652-656, Apr.  2020
10.7840/kics.2020.45.4.652


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  Abstract

In 5G NR system, mobile stations should achieve cell identification and initial synchronization before being served by exploiting synchronization signal block transmitted periodically from base stations. To successfully achieve initial synchronization and cell identification, primary synchronization signal (PSS) detection must be preceded. Cross-correlation based PSS detection algorithm was proposed but its performance degradation due to frequency offset is severe. To remedy the performance degradation problem, cross-correlation based PSS detection algorithm combined with frequency offset hypothesis scheme was proposed but its computational complexity increases drastically. In this paper, we propose an auto-correlation based PSS detection algorithm which utilizes time-domain complex conjugate centrally symmetric property of the PSS. Unlike to the cross-correlation based PSS detection scheme, the performance of the proposed scheme is not affected by the frequency offset and thus, the PSS can be detected with relatively low computational complexity.

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  Cite this article

[IEEE Style]

M. So and W. Oh, "Low-Complexity 5G NR PSS Detection Algorithm," The Journal of Korean Institute of Communications and Information Sciences, vol. 45, no. 4, pp. 652-656, 2020. DOI: 10.7840/kics.2020.45.4.652.

[ACM Style]

Minseok So and Wangrok Oh. 2020. Low-Complexity 5G NR PSS Detection Algorithm. The Journal of Korean Institute of Communications and Information Sciences, 45, 4, (2020), 652-656. DOI: 10.7840/kics.2020.45.4.652.

[KICS Style]

Minseok So and Wangrok Oh, "Low-Complexity 5G NR PSS Detection Algorithm," The Journal of Korean Institute of Communications and Information Sciences, vol. 45, no. 4, pp. 652-656, 4. 2020. (https://doi.org/10.7840/kics.2020.45.4.652)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880