Jörg Urban’s presentation at NEC XON’s 5G OpenRAN discussed how 5G open RAN timing can be achieved using new strategies and the latest toolbox of emerging solutions. He explained how to safeguard O-RAN networks from GNSS cyberattacks by building sync architecture with technology that delivers comprehensive mitigation and protection.

1. Get your timing right for 5G OpenRAN!
Jörg Urban
July 2022

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AGENDA
ADVA’s solution propositions for Open 5G networks
1.
Understand why timing is so critical for 5G
2.
GNSS as the source for timing
3.
A resilient end-to-end timing solution
4.

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Our open and innovative products
Packet edge with NFV
Ensemble
Single platform for
management, control,
and orchestration of all
ADVA products
Optical transport Network synchronization
Packet edge with virtualization Fiber monitoring
FSP 3000
FSP 150 and Ensemble
network virtualization
Oscilloquartz
ALM
Carrier Ethernet access and
network functions
virtualization (NFV)
solutions to deliver
software-defined,
differentiated and
performance-assured
services
Open optical networking
solutions based on wavelength
division multiplexing (WDM)
technology to deliver scalable
bandwidth for access, metro and
long-haul networks with
automation and ease of use
Primary reference clocks
and scalable grandmasters
to deliver and assure
accurate synchronization
from core to edge for fixed
and mobile networks,
smart grids, financial
services, data centers and
meteorology
Fiber monitoring solution for
precise and fast location,
characterization and
notification of fiber events

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Open 5G network architecture – where ADVA plays
Macro/micro cells Hub Access and aggregation Edge POP Metro network Central office
FSP 150 XG418
100G demarc and sync
OSA 54xx
PTP grandmaster
Ensemble Activator
and white box switch = DCSG
Ensemble Connector
and white box server for DU
VNF hosting
OTC enabled
White
box
4G/5G core
Sync
FSP 3000 transport
ALM fiber monitoring
G.metro self tuning pluggables
Products that meet requirements for next-gen open RAN architectures

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Precise synchronization is a key requirement for 5G
Many 5G services as well as efficient use of spectrum depend on precise timing
Source: Heavy Reading 5G Network & Services Strategies, 2020 Operator Survey; results analyzed by OMDIA

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5G timing requirements at a glance
LTE advanced CoMP, TDD: 1.1µs time sync
LTE – multicast: several µs time sync
3G TDD: 5µs time sync (large cells)
2G/3G – frequency sync only
5G – positioning/automated cars/industry4.0/IoT/….
5G – TDD/CA/massive MIMO, 1.1µs time sync
5G – new X-Haul/eCPRI/TSN
• Spectrum efficiency
• Technology
• New applications (IoT)
• New regulations

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• Maintains time highly accurate UTC
• Free for everyone but not everywhere
• Critical infrastructure will not scale with
ever increasing amount of GNSS antennas
• Vulnerable source
• https://www.gsa.europa.eu &
https://insidegnss.com/
GNSS signals are very weak, so additional measures must be taken for resiliency,
especially for critical infrastructure …
Global Navigation Satellite System (GNSS)
Source for precise time

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Need for a new timing and sync solution
GNSS as a single point of failure …
Jamming
Spoofing
GNSS outages
Atmosphere (solar activities)
Installation issues (obstruction)
Multipath caused by buildings
Interferences (TV, cellular, radar, µWave, …)
Indoor and outdoor (urban canyons)

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SLA enabling sync architecture for mission-critical communication networks
The new timing and sync solution –
Highly accurate and redundant time keeping, distribution and assurance
Core network
Ensemble of highly precise and
accurate ePRTC’s
< +/-30ns to UTC
L2/L3/WDM/TSN
ePRTC
ePRTC ePRTC
Aggregation / access network
CO’s enabled to provide time information
to variety of consumers
Better +/- 100ns (PRTC-A), 40ns (PRTC-B)
4G / 5G / DVB-T2
NG Sync Device
NG Sync Device
SSU PTP
Enterprises / Wholesale
NTP SSU PTP NTP
Applications
Better +/- 1000ns to UTC
Sync
network
&
service
management
Smart Grid
Time over optical transport
Secure and highly accurate time distribution
MEC / DC
Access network

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We are helping reinvent our industry
Summary
Extensive experience in designing and building 5G
time sync networks with most of the Tier 1
telecom/mobile operators globally
Most comprehensive time sync product portfolio for
purpose-built time sync networks
Superior and well recognized network mgt system
and applications
Global team for tech support and maintenance, 24x7

11. Thank you
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