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Resilient Time for the Future for Telecoms

Webinar: The fundamentals of time for the Telecoms sector
Supported by BT logo

A range of experts from across the telecommunications industry and research community came together on 30th September for the first in our Resilient Time for the Future webinar series.

Over 300 delegates from the telecoms sector joined NPL and BT for this online event to hear how time and synchronisation has developed over the past decades and learn more about the fundamentals of traceable time and distribution.

As well as sessions from NPL and BT, experts from Nokia, Calnex, ADVA and the Royal Institute of Navigation presented a series of Technical Focus Sessions on topics such as fixed and wireless infrastructure, monitoring, and GNSS derived time – providing a solid foundation of how time is used and distributed in telecoms.

Download the Q&As from our Resilient Time for the Future for Telecoms webinar


View the webinar


Key webinar highlights

Highlights from our speakers include:

Leon Lobo, Head of NTC, NPL

  • Protecting the national time scale
  • GNSS-independent timing for CNI
  • Stimulating a supply chain in timing and dissemination solutions
  • Addressing the skills gap

Mike Gilson, BT

  • History of time in communications, the sources and distribution within the network
  • Emerging applications and drivers in the industry, from drones to timing developments at CERN
  • The importance of communication networks to transport time

Setnam Shemar, NPL

  • How the global time scale is formulated, national realisations maintained and distributed, and the future for national resiliency in time

Tim Frost, Calnex

  • Why measurement is important for 5G
  • Regulatory and licensing drivers for frequency and time synchronisation, to maximise spectrum usage and interoperability between network operators
  • Reliance on a common clock feeding all operators, currently serviced by GNSS
  • Basestations need to be synchronised (for phase) at the <3microsecond level

Matthew Baker, Nokia Bell Labs

  • How GNSS-derived time for 5G is widespread, critical and vulnerable
  • The evolution of 5G to support distribution of time from: Rel16 supporting accurate reference delivery, through the developing Rel17 supporting Precision Time Protocol, and finally Rel18, increasing resiliency by reducing the dependency on GNSS and incorporating holdover clocks
  • The NTC potentially providing the resilient source for these infrastructures

Nir Laufer, ADVA

  • Threats and vulnerabilities that degrade and disrupt time in networks
  • ITU development of ePRTCs as a mitigation
  • Asymmetry as the biggest challenge to transferring time in networks

John Pottle, Royal Institute of Navigation

  • Ubiquitous use of GPS – from Hollywood clapper boards to ATMs
  • Threats, vulnerabilities, motivations and mitigations to time, using GNSS
  • The importance for a layered approach to resiliency


Sign up to receive updates on developments in the NTC programme, details on more opportunities to engage with the NTC team and hear more about future webinars in the series. Sign up.

30th September




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Hear more from the NTC team at the International Timing and Sync Forum

The International Timing and Sync Forum (ITSF) is the largest time and synchronisation conference and exhibition in the world and the NTC team will be hosting an event as part of the ITSF webinar series.

Join the team on 15th October for a panel session with experts from a range of industry sectors and for another chance to be part of the debate on future innovation in timing.

Learn more about how important resilient time is to your sector and find out how your business can be part of the NTC programme development over the next 5 years.

Thursday 15th October 15.00 BST 

Find out more and register