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On the use of white rabbit for precise time transfer in 5G URLLC networks for factory automation applications

Author:
Seijo, Óscar; Val, Iñaki; López Fernández, Jesús AlbertoUniovi authority; Montalban, Jon; Iradier, Eneko
Subject:

PTP

white rabbit

industrial wireless communications

clock synchronization

Publication date:
2019
Publisher version:
http://dx.doi.org/10.1109/ICPHYS.2019.8780178
Abstract:

The implementation of 5G networks has several technological challenges, which are mainly related to the UltraReliable and Low Latency Communications (URLLC). One of these challenges is precise time transfer. Precision Time Protocol (PTP) is the most widely used protocol for precise time transfer. However, PTP performance may not be sufficient in large 5G networks.In this paper, we propose the use of white rabbit as the main technology for frequency and time transfer in 5G transport networks. However, white rabbit can only be implemented in wired links, thus the time transfer performance in wireless links may not be enough for the most challenging URLLC use cases. Therefore, we propose in this paper a modification of the white rabbit protocol that can be used in wireless communications. The proposed wireless white rabbit protocol has been tested by simulations over a single carrier point to point communication system, and different channel models. The results show significant improvements of the time transfer accuracy in Line Of Sight channels compared to other common wireless time transfer approaches and a similar performance to white rabbit over wired links.

The implementation of 5G networks has several technological challenges, which are mainly related to the UltraReliable and Low Latency Communications (URLLC). One of these challenges is precise time transfer. Precision Time Protocol (PTP) is the most widely used protocol for precise time transfer. However, PTP performance may not be sufficient in large 5G networks.In this paper, we propose the use of white rabbit as the main technology for frequency and time transfer in 5G transport networks. However, white rabbit can only be implemented in wired links, thus the time transfer performance in wireless links may not be enough for the most challenging URLLC use cases. Therefore, we propose in this paper a modification of the white rabbit protocol that can be used in wireless communications. The proposed wireless white rabbit protocol has been tested by simulations over a single carrier point to point communication system, and different channel models. The results show significant improvements of the time transfer accuracy in Line Of Sight channels compared to other common wireless time transfer approaches and a similar performance to white rabbit over wired links.

Description:

IEEE International Conference on Industrial Cyber Physical Systems (ICPS) (2019. Taipei, Taiwan)

URI:
http://hdl.handle.net/10651/53893
ISBN:
9781538685006
DOI:
10.1109/ICPHYS.2019.8780178
Patrocinado por:

This work has been partly supported by DETRED (ELKARTEK 2017) project of the Basque Government (Spain) and by ARTEINE (TEC2017-86619-R) project of the Spanish Ministry of Economy and Competitiveness.

Id. Proyecto:

MINECO/TEC2017-86619-R

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  • Ingeniería Eléctrica, Electrónica, de Comunicaciones y de Sistemas [843]
  • Investigaciones y Documentos OpenAIRE [6431]
  • Ponencias, Discursos y Conferencias [3664]
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