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INDUSTRY GROUP

1www.gsm-rail.com

GSM-R State of the Art and Close Future Trends

UIC ERTMS World ConferenceIstanbul 1-3 April 2014

Ola BERGMANHead of GSM-R StandardizationNSN

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INDUSTRY GROUP

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GSM-R - State of the Art and Close Future Trends

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Why GSM-R?

GSM-R Renewals and Improvements

GSM-R Interoperability/Compatibility Testing IOT

Validation of GSM-R Test Specifications

New Professional Radio Standardization in 3GPP

Agenda

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Why GSM-R?

• Under UIC leadership a modern Railway Mobile System was specified during the 90’s – GSM-R – replacing analogue technology…

• …and has been refined over the years since then• It includes all required voice and data features for Railway Operation

• GSM-R is Interoperable and Multivendor• GSM-R has a very large footprint – in Europe and internationally• GSM-R is a true success story!

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GSM-R Renewals and Improvements

Ongoing in existing Networks/Systems

• Shift to Internet Protocol IP• Introduction of Release 4 GSM-R Core, GPRS footprint• Geographical Redundancy for Improved Core Availability• Renewal of RAN• Mitigation of Radio Interferences• Upgrades to ETCS L2/3 bearer capability

In Advanced Stage of Standardization

• ER-GSM - Capacity Increase Option• ETCS over Packet Switching (GPRS/EDGE)

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Release 4 Core

Upcoming GSM-R Core Network is the evolution of legacy TDM* based Core to Packet Based Core – from Release 99 to Release 4

The Bearer Independent Core Network architecture is defined by 3GPP* * in Release 4 specifications and since years widely deployed in public mobile networks around the world serving millions of subscribers

Physical Separation of the control and signaling telecom layer - MSC Server from the bearer plane - Media Gateway

Release 4 is fully compliant with UIC EIRENE specifications and ERA GSM-R baselines

Release 4 is a major milestone towards Internet Protocol IP

TDM* - Time Division Multiplexing, 3GPP** - 3rd Generation Partnership Project

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GPRS deployments

www.gsm-rail.com

Austria

Belgium

Bulgaria

Czech Republic

Denmark

Greece

Hungary

Ireland

Italy

Lithuania

Netherlands

Norway

Portugal

Slovakia

Slovenia

Sweden

Switzerland

United Kingdom Live In deployment

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INDUSTRY GROUP

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Geographical Redundancy

Two geographically distant GSM-R Core & Central Dispatcher Nodes to protect against Disasters

GSM-R Core on Location A GSM-R Core on Location B

GSM-R Dispatcher Node

GSM-R Dispatcher Node

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Renewal of GSM-R Radio Access Network RAN

• First GSM-R systems were deployed starting 1998• Since then radio technology has improved significantly• Less power consumption, less footprint, improved functionality, better

maintainability,...• Several Railways are updating/planning to update the Radio Access

Network RAN, i.e. to renew the Base Station Subsystem BSS

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ER-GSM - Capacity Increase Option

• Additional ER-GSM frequencies (4 + 3 MHz)• 75% more GSM-R capacity

E-GSM

DownlinkUplink

GSME-GSM GSM

Public UsersPublic Users

RailwaysRailways

960918915873 880 925

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GSM-R Inter Operability Testing (IOT) 2014 co-financed by the European Commission

MSC/VLR/

HLR/…

MSC/VLR/

HLR/…BS

S

GSM-R Network

GSM-R Network

BSS

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MSC/VLR/HLR/…

BSS

1.

CAB radio

GSM-R Network

Train Controller

2.

GSM-R Inter Operability Testing (IOT) 2014 co-financed by the European Commission

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Global IOT Phase 1&2

> Nortel and NSN - NSS/ NSS & NSS/ BSS EIRENE 5/13

> Static roaming functionality

> GSM services> Advanced Rail

services

IOT Phase 3 Initial & Regression

> NSN and Nortel - NSS/ NSS & NSS/ BSS EIRENE 5/13

> Inter PLMN connections tested

> Additional features tested

Global IOT & Field Phase 4.1

> Nortel BSS to NSN NSS EIRENE 6/14

Global IOT Phase 4.2 > Nortel NSS

to NSN BSS EIRENE 6/14

IOT Phase 3 extension> Focus on additional features (late entry,

eMLPP, Call barring and Access Matrix, Class of Registration, …)

Global IOT Phase 9.3 > KCC BSS

to NSN NSS EIRENE 7/15

Global IOT Phase 9.2 > KCC NSS

to NSN BSS EIRENE 7/15

Global IOT Phase 9.1 > KCC NSS

to NSN EIRENE 7/15NSS

2014

Global IOT Phase X Specs> GSM-R NSS/ > NSS & NSS/ BSS

& E to E> QoS

EIRENE 5/13Issued2000

EIRENE 6/14Issued2003

EIRENE 7/15Issued2006

EIRENE7.4.0/15.4.0

2002 Q2/ Q4 2004 Q1/ Q4 2005 Q1 2011 Q2 2011 Q3 2011Q1 2007

GSM-R Inter Operability Testing (IOT) 2014 co-financed by the European Commission

EIRENE7.3.0/15.3.0

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Validation of GSM-R Test Specifications

• The ERTMS MoU signed in April 2012 stipulates: “The GSM-R test specifications for conformity assessment of GSM R on-board radios and networks will be validated and included in the TSI CCS”

• GSM-R IG addresses by performing validation test campaigns 2013 and 2014 – coordinated with ERA

• The reason for GSM-R IG to invest in this is three-fold

1. A mandatory and sufficiently thorough test spec will guarantee a certain GSM-R quality all over Europe

2. Efforts for verification of compliance with TSI requirements predictable3. Commonly agreed test specs imperative for European Cross-acceptance -

also allowing for ”reusage” of e.g. generic ISV

• All these contributing to better efficiency and lower costs for both Railways and Suppliers

• GSM-R IG is strongly in favour of including the Test Specs in the CCS TSI

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Critical Communications (ref GSM-R Group Call functionality) currently in 3GPP work planned for inclusion in Release 12

• Group Call System Enablers over LTE (GCSE_LTE) • ProSe• Mission Critical PTT over LTE (MCPTToLTE)

• This standardization is driven by Users and Suppliers of Public and Professional Mobile Radio aiming at one Common, Efficient, Fully Featured and User Friendly solution…

• …aiming at many Users - potentially entire Public Safety Sector …

• Interesting to follow progress with regards to a Next Generation system following after GSM-R

New Professional Radio Standardization in 3GPP

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INDUSTRY GROUP

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Thank you!

the Future of Rail Communication –a Joint Enterprise