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GSM-R

SIAFI 2008Paris, 16 of April 2008

Mandoc Dan

UIC

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� Analogue Radio System, mostly walkie-talkie , simplex system� Range limited, continous communications not possible� Limited quality of communications � Limited applications, speech only� Large number of staff speaking the same channel� No encryptions for communication� Different frequency spectrums allocated

Precedent Situation – Analogue Radio

Ground –Train Radio

Maintenance Radio

Maneuver Radio

General Purpose Radio

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GSM-R� GSM-R is the new railway radio digital transmission system based on

ETSI-GSM concept, and it is a standard� It is designed, tested and improved by railways

� The system has also enhanced applications, railway needed :� Functional Addressing� Location Dependent Addressing� eMLPP ( Enhanced Multi Level Precedence & Preemption )� Voice Broadcast Calls� Voice Group Calls� Railway Emergency Call� …

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GSM-R Frequency characteristics

876 880 915890 921 925 935 960

Uplink (MS to BTS) Downlink ( BTS to MS)

UIC E-GSM P-GSM UIC E-GSM P-GSM

Dedicated Dedicated Frequency Band. Frequency Band.

Bandwidth 4 MHzCarrier Distance 200 KHz Nr of Carriers 19Nr of channels/carrier 8Inter BTS distance (actual limits) 6-17 km

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GSM-R Network

� A Train Controller is responsible for all trains in his area. He must be able to reach any of these trains quickly and without mistakes. It is established international practice (since many years) that each train has a number (which you may find in the time table).

GSM-R Function#1: The Train Controller simply dials the train number (not the MSISDN, which he anyway does not know!) followed by a two digits function code to reach the wanted function on the train (most commonly the Train Driver). This is achieved through Functional Addressing. Example: If the train number is 12345 and the Train Controller needs to reach the Train Driver he will dial 12345 followed by 01, i.e. 1234501

Functional Addressing

Area A

Area CArea B

12345

36524

63652

4636524636

Train Controller dials the Train Number…

…and is connected with the corresponding Train!

Area B

© Nokia Siemens Networks

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� It must be very easy for the Train Driver to reach the responsible Train Controller!

GSM-R Function #2 : The Driver only has to press one single button on his radio to reach the Train Controller responsible for the area his train is just passing through. This is achieved through Location Dependent Addressing LDA (cell based or enhanced)

Location Dependent Addressing

Area A

Area CArea B

Area A

Area DArea C

Area F

Area B

Area H

Area JArea E

Area GTrain Control

Centre

GSM-R Network

Train Driver pushes onesingle button…

…and is connected with the right Controller

© Nokia Siemens Networks

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GSM-R Network

� A Train Controller is responsible for all trains in his area. He must be able to reach all these trains at the same time for exchange of information of common interest.

GSM-R Function#3: The Train Controller simply dials the Short Code nnnn for Call All Trains in the Area. All Train Driver radios in the area are notified. The Train Drivers will take the call and start listening to the Train Controller. They also one by one can Push to Talk (PtT) and contribute to the information exchange. This is achieved through the Voice Group Call Service VGCS.

Call All Trains in the Area

Area A

Area CArea B

Train Controller dialsnnnn…

…all radio cells in the Area signal the call…

…and all Train radios takethe call!

Area B

© Nokia Siemens Networks

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GSM-R Network

Area A

Area CArea B

Area A

Area DArea C

Area F

Area B

Area H

Area JArea E

Area GTrain Control

Centre

� In Emergency situations a Train Driver must be able to warn all other trains at close range! The Train Controller for the Area must also be informed!

GSM-R Function#4: The Train Driver simply presses the red Railway Emergency button on his radio! All Train Driver radios at close range are notified and will automatically take the call! The Train Controller for the Area will also be alerted! This is achieved through the Railway Emergency Call REC.

Railway Emergency Call REC

Emergency is detected……Train Driver presses RED button …

…all radio cells in close range signal the call

…and the Train Controller is alerted and takes the cal l!

…all Train radios take the call…

© Nokia Siemens Networks

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VGC and MLPP

Controller

– Two subscribers are involved in a point to point call– Train controller initiates a Railway Emergency Call (REC)– The subscribers are notified– The ongoing ptp is terminated and the REC is connected

Emergency!

Emergency…

Emergency…

OK

OKPoint to point call

© Nokia Siemens Networks

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GSM-R Schematics

Base Station Subsystem (BSS) OperationSubsystem (OSS)

Network and SwitchingSubsystem (NSS)

Management -Subsystem

Switching- SubsystemRadio - Subsystem (MS +BSS)

MSMobile Station

HLR

EIRAuC

GCR

IN

VLR

BTSBase

Transceiver Station

TRAUTranscoding and

Rate Adaption Unit

BSCBase

Station Controller

MSCMobile Switching Center

OMC/NMCOperation and

Maintenance Center / Network

Management Center SMSCVMSC

GSM-Antenne

OMC-P

OMC-R Traditionalfixed

networks

Traditionalfixed

networks

Fixed network(Rail-Features)

Mobile communication platformFixed

communication platform

GSM-R network architecture

Subscribermanagement and

billing system

FFN

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GSM-R mobile Constituents

GSM-R Handhelds Cab Radio Types

(OPH)Operational Purpose Handheld

For use in normal environmental conditions

Professional use

Cab Radio (Dualmode)

Cab Radio (Voiceand Data

Communication

(GPH)General Purpose Handheld

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UIC GSM-R Related Projects in 2008

1.1.1.1. GSMGSMGSMGSM----R R R R 2.2.2.2. Advanced GSMAdvanced GSMAdvanced GSMAdvanced GSM----RRRR3.3.3.3. IPIPIPIP----IIII4.4.4.4. EEEE----TrainTrainTrainTrain

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UIC – GSM-R & Fixed Network Project

Main Tasks:Main Tasks:Main Tasks:Main Tasks:

�Maintain and update the existing specifications and standards for GSM-R , activity performed through UIC GSM-R experts groups: ERIG, Functional ERIG, Functional ERIG, Functional ERIG, Functional Group,Group,Group,Group, Operators GroupOperators GroupOperators GroupOperators Group

�Connections with ETSI through TCTCTCTC----RT GroupRT GroupRT GroupRT Group�Working close with the GSM-R Industry Group IGIGIGIG� Interoperability issues�Support to new implementing railways

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UIC Advanced – GSMR Project

�Packet switching mode for ETCS (GPRS & Others)�Target : field test campaign GPRS QoS for ETCS to prove that

GPRS could be the right solution;

�Based on the results of RFI and BV in GPRS QoS test campaigns, we are preparing live tests in real HSL environment for next period, and a frequency capacity study in mixed environment CSD & PSD

�Frequency matters :�Support the campaign for frequency band extension

�Protect the GSM-R spectrum against interferences

(e.g. UMTS 900, MCPA)

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UIC IP-I Project

The UIC IP-I project has to goals:

1. Interconnection of GSM-R networks

2.Building up a new communication network

Algiers

Amsterdam

Andorra La Vella

Athens

Belgrade

Berlin

Bern

Bratislava

Brussels

Bucharest

Budapest

Copenhagen

Dublin

Helsinki

Kishinev

Lisbon

Ljubljana

London

Luxembourg

Madrid

Minsk

Monaco

Oslo

Paris

Prague

Riga

Rome

San Marino Sarajevo

Skopje

Sof ia

Stockholm Tallinn

Tirane

Tunis

Vaduz

Valletta

Vatican City

Vienna

Vilnius

Warsaw

Zagreb

Algiers

Amsterdam

Andorra La Vella

Athens

Belgrade

Berlin

Bern

Bratislava

Brussels

Bucharest

Budapest

Copenhagen

Dublin

Helsinki

Kishinev

Lisbon

Ljubljana

London

Luxembourg

Madrid

Minsk

Monaco

Oslo

Paris

Prague

Riga

Rome

San Marino Sarajevo

Skopje

Sof ia

Stockholm Tallinn

Tirane

Tunis

Vaduz

Valletta

Vatican City

Vienna

Vilnius

Warsaw

Zagreb

NL

GR

SCG

D

CH

SK

B

RO

H

DK

FIN

P

SLO

GB

L

E

N

F

CZ

LV

I

BIH

BG

S

EST

A

LT

PL

HR

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GSM-R for ETCS• GSM-R is the bearer for ETCS• The GSM-R Network has to guarantee a high level of

Quality of Service in order to fulfill the needs of ETCS. • ETCS requires critical real time interactive data transfer; if

the movement authority is not available at the right time, the train will brake

• From strictly telecom point of view, only small application messages are sent periodically

• They are sent from OBU to RBC , as well as from RBC to OBU

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ETCS Requirements• Subset 093 defines the

ETCS requirements for GSM-R

• Tests have been done in Belgium, France, Germany, Italy, Netherlands, Switzerland, Spain

�The test results show a general fulfillment of the requirements

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GSM-R Specifications

GSM-R specifications :

EIRENE FRS v7

EIRENE SRS v15

MORANE updated documents

GSM-R Procurement Guide

and other useful information can be reached on UIC ERTMS/GSM-R Web Site :

http://ertms.uic.asso.fr

Middle 2008, we will have also the GSM-R Implementation Handbook finalized.

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GSM-R in Europe

�37MoU signatories

�17 of them already started

�Full implementation Stage

�GSM-R is a working system

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GSM-R Implementation Status

�Five administrations have finished the GSM-R implementation, or first stage of implementation finished the end 2007, and are migrated to GSM-R: Italy, Germany, Netherland, Norway and Sweden

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Total Network vs. GSM-R Planned Network

Total Railway Network : 220752 Km

Planned with GSM-R : 147719 Km

In Europe,67 % of the Railway Network is planned to be covered with GSM-R; from this 52101 km , which means 35,2% are in operation!

Railway Total Network vs GSM-R Planned Network

0

5000

10000

15000

20000

25000

30000

35000

40000

AD

IF

BD

K

BD

Z

BV

CF

L

CF

R

DB

Netz

HZ

JBV

LDZ

LG MA

V

Netw

ork Rail

OB

B

OS

E

PK

P

Prorail

RE

FE

R

RF

F

RF

I

RH

K

SB

B

SN

CB

SZ

SŽ

DC

ZS

R

Total Network

Planned Network

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Time Table

2008 :

47700 Km Migrated

32 %

2011:

55,4 % Migrated

Start of Implementation / In Service / Migrated GSM -R Networks

1995 2000 2005 2010 2015

OBB

SNCB

BDZ

HZ

SŽDC

BDK

RHK

RFF

DB Netz

OSE

MAV

RFI

CFL

Prorail

JBV

PKP

REFER

CFR

ZSR

SZ

ADIF

BV

SBB

UK

Start of Implementation

In Service

Migrated

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GSM-R Users

Mobile UsersPlanned :321833

Mobile UsersActivated :120953

37,5 %

�25901 Cab Radio’s Activated

0

10000

20000

30000

40000

50000

60000

70000

80000

AD

IF

BD

K

BV

DB

Netz

HZ

JBV

MA

V

Netw

ork Rail

OB

B

OS

E

PK

P

Prorail

RF

F

RF

I

RH

K

SB

B

SN

CB

SŽ

DC

Planned

Activated

GSM-R is not a Mobile Operator Business Case, but a Railway one !

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Conclusions

� GSM-R is a proven system, taken into account all over Europe, and not only

� Starting 2008, from an implementing system, we speak about a working system

� End of 2007 we have 5 administrations migrated, that means more than 47,700km migrated

� It was proven to work at 500 km/h!

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mandoc@uic.asso.fr