Time as a service for the IoTworld of tomorrow

ITSF, Nov 2017

Jörg Urban, director, BD/sales, Europe

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Time and frequency sync: keeping telecomnetworks running

Spectrum utilization is driving mobile and cable investment

Mobile, cable operators and wireline

DWDM

“Digital fiber”

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Time sync: keeping applications running

Financial institutions and power utilities

ESMA consultation paper Annex B Regulatory Technical Standard (RTS 25) on MiFID II

• Requires customers’ clocks and clocks of trading venues to be synchronized

• Standardizes the recorded time for post-trade data, transaction reporting and order event auditing

• Level of accuracy for operators of trading venues requires 1ustimestamping

• Level of accuracy for members or participants of trading venue activity using high-frequency algorithmic trading technique requires 1us timestamping

• Any other trading activity requires 1ms timestamping or better

Smarter Grid Solutions has come up with a key enabling technology that will create flexibility in electricity distribution networks and allow more renewable energy to be connected to the grid

• Time sync to monitor and control the SG with accuracy req. from 1sec to 1usec

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Future applications: time sync for Industry 4.0 and cars/IoT

Enterprise 2

Enterprise 1

Enterprise 3

All relevant information in real-time of all entities involved.A set of parameters including time and location track

subcomponents of goods.

V2V/M2M comm using 5G technology location-based services, indoor and outdoor using

observed time difference of arrival (OTDOA) algorithm

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Source for precise time: Global Navigation Satellite System (GNSS)

• A billion euro investment

• Maintains highly accurate UTC

• Available to everyone

• Vulnerable source

https://www.gsa.europa.eu/newsroom/news/geolocation-technology-cusp-revolutionpublished: 13 June 2017, The Internet of Things relies on GNSS….source: European GNSS Agency

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GNSS as a single point of failure …

• Interferences

• Intentional (jamming), unintentional

• Multipath, spoofing, GNSS outages

• Atmosphere (solar activities)

• Indoor and outdoor (urban canyons)

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The new sync overlay: time keeping, distribution and assurance

Core network

Ensemble of highly precise and accurate ePRTCs< +/-30nS to UTC

L2/L3/OTNaccess network

ePRTC

ePRTC ePRTC

Aggregation/access networkCOs enabled to provide time informationto variety of consumers+/- 100nS to UTC

4G / 5G

NG sync device

NG sync device

SSU PTP

Enterprises/wholesale

NTP SSU PTP NTP

Time as a service+/- 1000nS to UTC

Time over optical transport

Netw

ork

and s

erv

ice m

anagem

ent

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PPS

Combiner

Maintain precise time using ePRTC backup of GNSS as a single point of failure

Cesium clock for resiliency against GNSS jamming and spoofing

ePRTC logical model (simplified !! )

Cesiumfreq. ref

Compiner features:

• Filtering GNSS (30 ns MTIE)• Frequency output UTC coherent• Time/Phase output UTC coherent• Holdover (100 ns for 14 days or

longer)

GNSS

F

(Stability)

~

frequency out

Time andphase out

Eth. for Mgt.

Time(Accuracy)

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Maintain precise time using ePRTC backup of GNSS as a single point of failure

Cesium clock for resiliency against GNSS jamming and spoofing

GNSSreceiver Time

clock

PPS

PPS (ePRTC– G.8272.1 – Type A)

Combiner

Cesium clock(ePRC)

GNSS

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ePRTC: What is enhanced?

Holdover performance for type-A30ns TE in locked mode45ns TE after 3 days holdover rec. by larger operator60ns TE after 5.8 days in holdover

ePRTC-Aholdover

spec

Non-corrected

Cs

Corrected Cs

(ePRTC)

ePRTC Class Holdoverperformance

ePRTC-A 100ns over a 14 days

ePRTC-B

(under definition)

100ns over a 80 days

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Time distribution from the ePRTCs in core network - allocation of lambda (PTP/SyncE)

OSC (1510 nm)

nx10GE (data)

OSA 5420

Pass through

OSFM

A

OSFM

A

1610nm / single fiber

• Full T-BC (Class B)• PTP GM with GNSS• Sync-E • NTP• Sync assurance

Sync functionality

Access network

nx10GE (data)1530nm 1570nm

Wavelength

Tra

nsm

it

OSC Sync 1610 nm ALM

data

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Customer portal for monitoring timing services at demarcation

• Sync portal is a web-hosted application

• Custom views, reports per customer/carrier

• Data segregation ensures privacy between customer domains

• Data collection via FSP NM or via dedicated collector appliance

Syncnetwork

FSP NM Collector

Data center

Storage

Syncjack portal

Secure encryptedcommunication

Carrier

HTTPS

HTTPS

Customer A

A

B B

A

Customer B

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Takeaways

• The importance of time in communication networks is increasing

• Building blocks are available to architect and operate an

independent system to maintain and distribute precise time data

• TaaS means SLAs and a backup to GNSS

Thank You!

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