Published August 25, 2025
| Version v1
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Beam Misalignment in 3GPP mmWave NR
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Description
This paper presents an analytical framework for evaluating beam misalignment in 3GPP mmWave NR systems implementing analog beamforming. Our approach captures the interaction between user mobility, beam sweeping mechanisms, and deployment configurations, focusing on long-term average performance metrics. Specifically, we model the beam misalignment rates at both the base station (BS) and user equipment (UE) as Poisson processes and derive expressions for the expected misalignment duration, misalignment fraction, and overall beamforming gain. The framework accounts for practical constraints in NR such as Synchronization Signal Blocks (SSB) periodicity, TDD frame structures, and SSB overhead. Through numerical evaluation based on 3GPP mmWave parameters, we identify key trade-offs between beam counts, user mobility, and SSB timing, providing actionable design insights for robust and efficient beam management in future high-frequency networks.
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Additional details
Identifiers
- ISBN
- 979-8--33159777-1
- ISSN
- 2161-2064
Related works
- Is published in
- Conference paper: 10.1109/ICTON67126.2025.11125233 (DOI)
Funding
Dates
- Available
-
2025-08-25Published
References
- Z. Vujicic et al., "Towards Virtualized Optical-Wireless Heterogeneous Networks," IEEE Access, 2024.
- T. Zugno et al., "Use Cases for Terahertz Communications: An Industrial Perspective," IEEE Wireless Communications, vol. 32, no. 1, Feb. 2025.
- E. Björnson and Ö.T. Demir, Introduction to Multiple Antenna Communications and Reconfigurable Surfaces. Now Publishers, Jan. 2024.
- 3GPP, "5G; NR; physical layer procedures for control (release 17)," Technical Specification TS 38.213 V17.10.0, 2024.
- 3GPP, "Study on New Radio (NR) Access Technology (Release 18)," Technical Report TR 38.912 V18.0.0, Mar. 2024.
- 3GPP, "Study on New Radio Access Technology: Physical Layer Aspects (Release 14)," Technical Report TR 38.802, Sep. 2017.
- M. Giordani et al., "A Tutorial on Beam Management for 3GPP NR at mmWave Frequencies," IEEE Communications Surveys & Tutorials, vol. 21, no. 1, 2019.
- L. Yan, H. Yang, and Y. Zhang, "Beam selection for beam refinement procedure in multi-cell millimeter-wave massive mimo systems," in 2018 IEEE/CIC International Conference on Communications in China (ICCC Workshops), 2018.
- L. Maggi, A. R. Koblitz, Q. Zhu, and M. Andrews, "Tracking the best beam for a mobile user via bayesian optimization," in 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), 2023.
- D. Zhang, M. Xiao, and M. Skoglund, "Beam tracking for dynamic mmwave channels: A new training beam sequence design approach," in 2022 20th International Symposium on Modeling and Optimization in Mobile, Ad hoc, and Wireless Networks (WiOpt), 2022.
- S.S. Kalamkar et al., "Beam Management in 5G: A Stochastic Geometry Analysis," IEEE Trans. Wireless Commun., vol. 21, no. 4, pp. 2275–2290, Apr. 2022.
- 3GPP, "5G; NR; radio resource control (RRC); protocol specification (release 17)," Technical Specification TS 38.331 V17.0.0, 2022.
- 3GPP, "5G; NR; requirements for support of radio resource management (release 17)," Technical Specification TS 38.133 V17.14.0, 2024.
- Electronic Communications Committee (ECC), "ECC recommendation (20)03: Frame structures to facilitate cross-border coordination of TDD MFCN in the frequency band 3400–3800 mhz," Tech. Rep., 2020.
- N. Bernadas i Busquets et al., "Beam Misalignment in 3GPP mmWave NR," Apr. 2025, preprint. [Online]. Available: https://arxiv.org/abs/2504.11565
- H. Kobayashi, B. L. Mark, and W. Turin, Probability, Random Processes, and Statistical Analysis. Cambridge University Press, 2012.