BT Upgrades to ADVA's Synchronization Solution to Improve Use of Spectrum

3 months ago
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BT Upgrades to ADVA's Synchronization Solution to Improve Use of Spectrum Image Credit: ADVA

BT is leveraging ADVA's Oscilloquartz synchronization technology to bring 4G coverage to previously underserved areas and begin the rollout of 5G services across the UK.

Prior to this deployment, BT’s timing network was based purely on frequency synchronization, said ADVA. With the new solution, it will now distribute stable and accurate phase and time-of-day information, enabling BT to dramatically improve the use of its spectrum. The new synchronization network is built on the OSA 5430 and OSA 5440 and integrated with ADVA’s network management solution. The technology provides the sub-microsecond accuracy required for next-generation mobile applications together with hardware redundancy for unbeatable resilience.

Deployed nationwide in 10 core time base sites, 106 metro time sites and close to 1,000 Tier 1 sites at the network edge, BT’s new synchronization solution answers the demands of sophisticated LTE Advanced applications and enables a smooth transition to 5G connectivity. ADVA’s modular grandmaster clocks support PTP, NTP and SyncE over multiple 10Gbit/s interfaces. They provide unprecedented levels of accuracy and offer phenomenal holdover performance in case of GNSS outages, meeting ITU-T G.8272 primary reference time clock (PRTC) requirements, claims ADVA.

Neil McRae, Chief Architect, BT Group
The OSA 5430 and OSA 5440 offer the robustness of hardware redundancy together with the scale we require to meet tomorrow’s needs. Their modular design also means that our network is ready to support future timing technologies without further upgrades.

Sarah Mendham, Senior Director, Sales, ADVA
Achieving phase synchronization is a major challenge but with our uniquely flexible, high-capacity technology and the dedication and experience of our team, we’ve been able to handle all of that complexity on BT’s behalf and provide the ideal solution for its needs and ambitions.

Ray is a news editor at The Fast Mode, bringing with him more than 10 years of experience in the wireless industry.

For tips and feedback, email Ray at ray.sharma(at), or reach him on LinkedIn @raysharma10, Facebook @1RaySharma


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