industry experience with gsm-r project in switzerland ... nokia siemens gsm-r bay networks server...

ALSTOM FREQUENTIS HFWK KAPSCH NORTEL SAGEM SELENIA SIEMENS WENZEL 1

INDUSTRY GROUP

Industry experience with GSM-R project in Switzerland

Wolfgang WenzelFrequentisGSM-R Industry Group


INDUSTRY GROUP

Targets of Swiss strategy for ETCS and GSM-R

Replacement of old existing train control systems and analogue radiosFast implementation of ETCS Level 2 on selected tracksand of ETCS Level 1 on all other tracksNetwork-wide implementation of GSM-R Increased train speed and train sequencesShorter travel time for passengersIncreased volume of goods transported goodsInteroperable rail traffic with efficient border crossings


INDUSTRY GROUP

Swiss Railways’ GSM-R project (I)

Schweizer Bundesbahnen (SBB) project also involving other railway organisations operating on the networkA system-based approach: “System Eisenbahn”New line between Bern and Olten: Europe’s first pilot project for GSM-R and ETCS Level 2Partnership with public GSM operator Swisscom: Connection to cab radios and handhelds in areas where GSM-R is not yet available Step by step expansion into new local areas of SBB`strack network and into new areas of functionality


INDUSTRY GROUP

Swiss Railways’ GSM-R project (II)

GSM-R functionality to be implemented into operational communications by Swiss RailwaysParadigm shift from “train radio” to “train telephony”Telecommunication networks in a ring structure for safety and efficiency reasonsRole Management/ Free Seating in operational communication for dispatchers for flexible centralisation Role Management for dispatchers also to combine advantages of GSM-R and modern train control systems


INDUSTRY GROUP

Switzerland, SBB - System Overview (I)

MultiplexersMSC

Nokia SiemensGSM-R

Bay Networks

Server Tasksat Application Server

DispatcherTerminals

(380 Dicora-Sand Dicora-Pi)

SMSCSCP

Analogue PA Systems

GTAnalogue RadioBase Stations

ASS Neumann

ManagementConsole

Data General

CUS/DISPRAS

IP Network

Frequentis GSCCentral Switch


INDUSTRY GROUP

Switzerland, SBB - System Overview (II)


INDUSTRY GROUP

GSM-R component suppliers to SBB (I)

Alstom: Bi-mode cab radio (dual GSM-R and analogue radio)

Frequentis: Fixed Terminal System FTS 3020 with dispatcherterminals Dicora-S, Dicora-PiIntegration of operational communication (+ legacyinterfaces) and GSM-R

Hörmann Funkwerk Kölleda: Train Radio System MESA 25-01


INDUSTRY GROUP

GSM-R component suppliers to SBB (II)

Nokia Siemens Networks: GSM-R Infrastructure: Network Subsystem, Base Station Subsystem, SMS Center, Intelligent Network

Sagem: Handhelds OPH 940 (older version)TiGR 350R (OPH), TiGR 155R (GPH)

Siemens TS Poole: ETCS Data Radio System SDR 100


INDUSTRY GROUP

Challenges of the migration process …

…overcome by strong close cooperation between industryand railway partners:Multi-stage process for the introduction of GSM-R intooperational communications at Schweizer Bundesbahnen Operation in all official languages of SwitzerlandExisting processes and several special key features of operational communication to be kept, if possibleReworking communication systems for several types of locomotives


INDUSTRY GROUP

Radio shunting

Necessity to retain analogue radio shunting processes in new operational communication contextGSM-R radio shunting as practised at present still requires improvement Shunting requirements currently being re-formulated by rail bodies SBB (together with Finnish Railways) cutting-edge railway organisation regarding standardisation of dispatcher`sinvolvement in shunting group communication


INDUSTRY GROUP

IP/ VoIP in the Swiss GSM-R project

Requirements for VoIP implementation defined very earlyin line with the general trend in the telecom industryClear roadmap towards VoIP:

TerminalsLoudspeaker systemsIP migration of other components

Operational Testing of IP connected Dicora terminalsPrototype for IP connection of loudspeaker systems forPublic Announcements in AutumnBenefits of IP use: off the shelf products, more flexibility, easier interworking of different data and voice services


INDUSTRY GROUP

Key success factors and lessons learned (I)

Close collaboration between the railway organisation and industryStep-by-step realisation of the project, road map forfunctional releases from the beginningCooperation and partnership with public GSM operatorduring whole implementation phaseInnvolvement of the staff railway organisation staff fromthe beginningProject management within the railway organisation to show consideration for realistic issues


INDUSTRY GROUP

Key success factors and lessons learned (II)

Partial change of process due to operational and procedural differences between old and new systemsCareful selection of legacy systems to be kept in newGSM-R world, e.g. only one type of line site telephones, one type of loudspeaker,etc.Precise analysis of existing functions and operational processesPrecise specifications of interfaces between new and legacy systemsPartial functional expansion of legacy systems


INDUSTRY GROUP

Conclusions

Industry Group (IG) important to ensure robust GSM-R technology for the futureInteroperability testing of GSM-R network componentsfrom different suppliers and perspectives. Version management makes GSM-R implementation safe and efficientIG`s work on shunting supports the projects in Switzerlandand other countriesIG as a key success factor for integration of new featuresand new technological trends in telecommunication intoGSM-R technology

industry experience with gsm-r project in switzerland ... nokia siemens gsm-r bay networks server...

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