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S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 1TS RA D PM, 11/11/2003
Interfacing ETCSwith GSM-R
UIC ERTMS Conference "On Track for Success"10 - 11 December 2003, Leipzig
Sabine ReppertSiemens Transportation SystemsRail Automation
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 2TS RA D PM, 11/11/2003
System Overview of ETCS Level 2R
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ETCSEVC
Balise
Signal (optional)
Track vacancydetection systems
ETCSRBC Interlocking
ISDNISDN
Adjacent RBCAdjacent RBC
GSM-RGSM-R
RBC: Radio Block CenterEVC: European Vital Computer
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 3TS RA D PM, 11/11/2003
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ion System Overview of ETCS Level 2
ETCSEVC
Balise
Signal (optional)
Track vacancydetection systems
ETCSRBC Interlocking
ISDNISDN
Adjacent RBCAdjacent RBC
GSM-RGSM-R
RBC: Radio Block CenterEVC: European Vital Computer
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 4TS RA D PM, 11/11/2003
Interfacing EVC with GSM-R (Functional Architecture)R
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ETCS
EVC
Euroradiosafety layer
EVC application
Euroradiocommunication layer
GSM-R Mobile
GSM-R antenna
Non-vital functions
Air gap
Standardinterface (MT2)
Vital functions
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 5TS RA D PM, 11/11/2003
Interfacing RBC with GSM-R (Functional Architecture)R
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ETCS
RBC
Euroradiosafety layer
RBC application
Euroradiocommunication layer
ISDN-S2m card
MSC
BTS
BSC
Air gap
Non-vital functions
Vital functions
Standardinterface (S2m)
BTS: Base Transceiver StationBSC: Base Station ControllerMSC: Mobile Switching Center
ISDN
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 6TS RA D PM, 11/11/2003
Challenges of Interfacing ETCS with GSM-R (1/3)R
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Availability of the overall system
To operate ETCS Level 2 successfully,you have to make sure that ...
the GSM-R infrastructure has a very high availability or
the ETCS system has a well-designed fall-back mode(e.g. Level 1) in case of losing the connection betweentrain and RBC.
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 7TS RA D PM, 11/11/2003
Challenges of Interfacing ETCS with GSM-R (2/3)R
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nGSM-R network architecture
To operate ETCS Level 2 successfully,you have to make sure that the network coverageis designed in such a way that ...
even at the highest speed (up to 500 km/h) the connectionbetween RBC and train does not get lost during the cellhandover.
the overlapping into the adjacent non-ETCS Level 2area is large enough so that the train is able to enterthe ETCS Level 2 area without braking.
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 8TS RA D PM, 11/11/2003
Challenges of Interfacing ETCS with GSM-R (3/3)R
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nQoS parameters
To operate ETCS Level 2 successfully,you have to make sure that...
the system parameters are configured in such a way that the following quality-of-service (QoS) requirements are met
¨ Transmission interference rate
¨ Connection establishment failure probability
¨ Connection loss rate
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 9TS RA D PM, 11/11/2003
Motivation for ETCS Level 2R
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nThe benefits to the railway operators include
üHigh speeds of up to 500 km/h
üShorter headways
üMinimum or no lineside signals
üHighest level of safety
üInteroperability
The ETCS Level 2 technology is ready for deployment!
The benefits to the railway operators include
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 10TS RA D PM, 11/11/2003
RBC (J-H/L)
RBCEuroradio
module
EVCEuroradiomodule
Solutions for Interfacing ETCS with GSM-RR
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EVC (Desiro, JH/L)
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 11TS RA D PM, 11/11/2003
ConclusionR
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nEven though there are standards defined, interfacing ETCSwith GSM-R is a complex task. Do not expect it to be like"plug&play".
If you do not have the necessary experience, it is like"plug&pray"!
Siemens Transportation Systems has the necessary expertiseto operate ETCS with GSM-R.
Siemens ETCS Level 2 reference projectsGermany: Berlin-Halle-Leipzig pilot lineSpain: AVE trains for the Madrid-Lérida high-speed lineNetherlands: HSL Zuid high-speed line
Siemens is a full-scope supplier for both coretechnologies: ETCS and GSM-R
ü
ü
S. Reppert - UIC Conference Leipzig Copyright (C) Siemens AG 2003. All Rights Reserved. 12TS RA D PM, 11/11/2003
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