“Managing Rail Mobile Communications Evolution. On tracks for future Challenges",Nice – Nov 2-3

Anne-Sophie CHAZEL - Siemens

Diffusion non restreinte

Diffusion non restreinte

Introduction - Agenda

• NGTC project short presentation• NGTC “IP based radio communication” work package

o The participantso The deliverableso The main outcomes

NGTC presentation -Basic Facts• NGTC project is supported by the

European Community’s Seventh Framework Programme (FP7/2007-2013)

• Coordinated by UNIFE• Project budget:

o Total project Budget: 10,96 M€o Planned EU contribution: 6,36 M€

• Timingo Started: 1.9.2013o 36 months

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Memberscontribution

EUcontribution

High Level Objectives

• Investigate synergies between two train control systems, widely used today: ETCS and CBTC

• Encourage further adoption of European command / control and signalling specifications world wide

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Technical Work Packages - 1

• WP2 ETCS/CBTC investigation of operational and functional consistencies & differences

• WP3 Technical Coherence (NGTC system specification)• WP4 Common Message Structure for Urban and

Mainline• WP5 Moving Block Principles• WP6 IP Based Radio Communication• WP7 Satellite Positioning

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NGTC WP6 detailed presentation

• WP 6: IP based radio communication system• Take into account both urban CBTC and mainline

ETCS/voice needs :o The WP6 members have experience in both domainso The scope of the radio system were different and

required discussion and alignments

Members of the NGTC WP6o Manufacturers

• Alstom, Ansaldo, AZD, Bombardier, CAF, Siemens and Thales

o Urban Operators• UITP (large association of urban companies, e.g.

operators), LUL, RATP and TMBo Mainline infrastructure managers and railway undertakings

• EUG (representing a group of Infra Managers / Operators) and SNCF

o Others• Consultants : NaveCom

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Common scope of the IP communication system

NGTC on‐bordapplication (main line or urban domainconfiguration 

Euroradio*(if use withETCS )

On –board IP networkMobile Radio

Number Dependingon train consist

WaysideRadio

IP‐based trackside network

Audio Communication 

services

Secure GWAnd/or

or ETCS or CBTC + +

Euroradio*(if use withETCS )

Secure GWAnd/or

NGTC waysideapplication (main line or urban domainconfiguration 

Audio Communication 

servicesor ETCS or CBTC + +

Optionalother

applications

Optionalother

applications

WaysideRadio

WaysideRadio

WaysideRadio

WaysideRadio

Mobile Radio

Mobile Radio

Mobile Radio

Mobile Radio

Applications using the IP comm

WP6 scope

For Euroradio and secure GW, some requirements should be modified by result of task 6.3.1

outside of NGTC scope. Coulduse the IP Comm system onlyif  spare capacity available

WP6 / Optional in some cases of application

Required but outside of NGTC scope (TEN‐T for Euroradio adaptation for IP Communication , S2Rail for Voice over IP)

WaysideRadio

WP6 Scope and structureScope Targets Tasks

IP based radio for Urban and for Main Line train control

systems

Studies on system

To define possible technical

solution(s?) for underlying radio communication

T 6.1 – General Requirements Specification for the radio communication system

T 6.2 .1 Short list of candidate technologies

T 6.2.2 Condition of use in the railway contexts -

T 6.3.1 – IT security

To define the requirements

for both domains

T 6.2.3 Throughput capabilities

T 6.2.4 QoS capabilities included

T 6.3.2 – IP rules

T 6.3.3 – External interfaces

T 6.2.5 Radio coverage quality

Deliverables

D6.1 Requirement specification

D6.2 Choice of technology to study

D6.3 Recommendation for external stakeholders

D6.4 Bibliographic study about performances of the candidate technologies in term of throughput

D6.5 Bibliographic study about performances of the candidate technologies in term of QoS

D6.6 Results of evaluation

D6.7 Results of the studies

NGTC WP6 outcomesPreferred frequency range are different between Main

Line and urban

Main line  Urban

Migration Need to re‐use existing site (roughtly each 7km)

Propagationconditions

Open space or large station :‐Use of omni antennas‐Long range possible (no blocking point)

Tunnels : ‐possibility to avoid leaky cables when using higher frequencies‐directive antennas are preferred‐blocking trains less disturbing with high frequencies

NGTC WP6 outcomesNo radio technologie is “The One”.Convergence on a multivector architecture

Main line  Urban

LTE Eligible (700MHz?) Eligible (between 2,6GHz and 6 GHz?)

802.11p No Candidate in 5.9 GHz bands; but coexistence and possibly cooperation with ITS communications still intoinvestigation

SATCOM in L‐ and S‐bands 

Assuming that there is a complementary atmospheric vector where satellite coverage is obstructed

No (tunnels + latency issues)

NGTC WP6 outcomesRequest for throughput are from different application.Currently CBTC is more demanding

Main line  Urban

Train control ERTMS is requesting low throughput, and admit “holes”

128kb/s per train is requestedLow latency and no holes are requested

Voice Mandatory feature. Driver of the needs..

Requested but often covered by separate radio communication system

Others (optional inNGTC study)

Not taken into account in NGTC study ‐ To be seen in FRMCS URS and S2Rail study

Request for CCTV ask highthroughput. Also currently coveredby separate radio communication system

NGTC WP6 Outcomes

• Outline of possible access protocols• Recommendation for low layers standards• Recommendations for IP suite connectivity & security• Appendix 1 : status of spectrum use and its evolution• Appendix 2 : Coverage characteristics• Appendix 3 : interferences and spurious signals

COMMON RECOMMENTATIONS – See D6.3

Questions?