A Concise Review of 5G New Radio Capabilities for Directional Access at mmWave Frequencies

  • Giulia Sanfilippo
  • Olga GalininaEmail author
  • Sergey Andreev
  • Sara Pizzi
  • Giuseppe Araniti
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11118)


In this work, we briefly outline the core 5G air interface improvements introduced by the latest New Radio (NR) specifications, as well as elaborate on the unique features of initial access in 5G NR with a particular emphasis on millimeter-wave (mmWave) frequency range. The highly directional nature of 5G mmWave cellular systems poses a variety of fundamental differences and research problem formulations, and a holistic understanding of the key system design principles behind the 5G NR is essential. Here, we condense the relevant information collected from a wide diversity of 5G NR standardization documents (based on 3GPP Release 15) to distill the essentials of directional access in 5G mmWave cellular, which becomes the foundation for any corresponding system-level analysis.


mmWave Beamforming New radio 5G NR Numerology Initial access Random access 



The publication has been prepared with the support of the “RUDN University Program 5-100.”


  1. 1. Accessed June 2018
  2. 2.
    5G Design Concepts Towards the Next Generation Networks. White Paper (2018).
  3. 3.
    5G NR - A New Era for Enhanced Mobile Broadband. White Paper (2018).
  4. 4.
    3GPP Technical Specifications Group RAN: TS 38.300: NR and NG-RAN Overall Description, Stage 2 (Release 15), December 2017Google Scholar
  5. 5.
    3GPP Technical Specifications Group RAN: TS 38.211 (Release 15): Physical channel and modulation, June 2018Google Scholar
  6. 6.
    3GPP Technical Specifications Group RAN: TS 38.213: NR Physical layer procedures for control (Release 15), June 2018Google Scholar
  7. 7.
    3GPP Technical Specifications Group RAN: TS 38.213 (Release 15): Physical Layer Procedures for Control, June 2018Google Scholar
  8. 8.
    3GPP Technical Specifications Group RAN: TS 38.321 (Release 15): Medium Access Control (MAC) protocol specification, June 2018Google Scholar
  9. 9.
    3GPP Technical Specifications Group RAN: R1–1608966: Considerations on Sweeping Time Interval in NR, October 2016Google Scholar
  10. 10.
    3GPP Technical Specifications Group RAN: R1–1609118: RACH design with and without beam reciprocity, October 2016Google Scholar
  11. 11.
    3GPP Technical Specifications Group RAN: R1–R11609117: Discussion on RA procedure, October 2016Google Scholar
  12. 12.
    3GPP Technical Specifications Group RAN: TS 38.802 (Release 14): Physical Layer Aspects, September 2017Google Scholar
  13. 13.
    3GPP Technical Specifications Groups: 3GPP Features and Study Items (2018). Accessed June 2018
  14. 14.
    3GPP Technical Specifications Groups: About Release 15, June 2018. Accessed June 2018
  15. 15.
    Alkhateeb, A., Mo, J., Gonzalez-Prelcic, N., Heath, R.W.: MIMO precoding and combining solutions for millimeter-wave systems. IEEE Commun. Mag. 52(12), 122–131 (2014)CrossRefGoogle Scholar
  16. 16.
    Desai, V., Krzymien, L., Sartori, P., Xiao, W., Soong, A., Alkhateeb, A.: Initial beamforming for mmWave communications. In: 2014 48th Asilomar Conference on Signals, Systems and Computers, pp. 1926–1930 (2014)Google Scholar
  17. 17.
    Deutsche Telekom AG: RP-161266: 5G architecture options - full set, June 2016Google Scholar
  18. 18.
    Giordani, M., Mezzavilla, M., Zorzi, M.: Initial access in 5G mmWave cellular networks. IEEE Commun. Mag. 54(11), 40–47 (2016)CrossRefGoogle Scholar
  19. 19.
    IEEE P802.11 Task Group ay: Status of Project IEEE 802.11ay. Accessed June 2018
  20. 20.
    IEEE Standard: 802.11ad-2012: Enhancements for Very High Throughput in the 60 GHz Band.
  21. 21.
    Keysight Technologies: Understanding the 5G NR Rhysical Layer, November 2017Google Scholar
  22. 22.
    NTT Docomo: Status of Investigations on Physical-layer Elemental Technologies and High-frequency-band Utilization. NTT Docomo Tech. J. 19(3), 24 (2018)Google Scholar
  23. 23.
    Qualcomm: Designing 5G NR: The 3GPP Release-15 global standard for a unified, more capable 5G air interface, April 2018.
  24. 24.
    Qualcomm: Making 5G NR a reality. White paper, December 2016Google Scholar
  25. 25.
    Razavizadeh, S.M., Ahn, M., Lee, I.: Three-dimensional beamforming: a new enabling technology for 5G wireless networks. IEEE Signal Process. Mag. 31(6), 94–101 (2014)CrossRefGoogle Scholar
  26. 26.
  27. 27.
    Rohde & Schwarz: Numerology and Initial Access Concept for 5G NR (2017). Accessed June 2018
  28. 28.
    Yifei, Y., Xinhui, W.: 5G new radio: physical layer overview. ZTE Commun. 15(S1), 11–19 (2017)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Mediterranean University of Reggio CalabriaReggio CalabriaItaly
  2. 2.Vodafone ItalyMilanItaly
  3. 3.Tampere University of TechnologyTampereFinland
  4. 4.Peoples’ Friendship University of Russia (RUDN)MoscowRussia

Personalised recommendations