Master

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ERTMS conference, Lille - ERA, June 7th 2007 -
Development of interoperable products and
systems Norman Frisch, NortelGSM-R Industry
GroupJune 2007
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GSM-R system architecture

• Inherited synergies from
• wireless technologies
• Fixed network technologies
• Global customer/supply base

• Interconnectivity on industry standards
• MixMatch network DNA

Diversified networks maximise flexibility of
network
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Benefits of standards evolution and
diversified networks

• EIRENE refers to a set of
• 53 normative GSM specifications (ETSI)
• 13 normative Rail specifications
• Evolution of standards
• Hundreds of EIRENE change requests received
• Multitude of ETSI GSM CRs processed

• Speed of EIRENE spec update increases
• 2000 initial EIRENE spec
• 2003 1st spec update
• 2006 2nd spec update
• 2007 scheduled for 3rd spec update
• Standards evolution and diversified networks are
  requested

standards evolution

• Wide and diversified set of suppliers can
  accommodate requirement
• Railways buy off the shelf products to accomplish
  their GSM-R demands
• Suppliers are GSM but not GSM-R centric
• Competitive market for GSM and GSM-R supply

• Version management ensuring system integrity is
  required

Benefits
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Implementation variants

• Rail specifications
• Mandated EIRENE features
• Optional EIRENE features
• Optional ETCS integration

• Telecoms specification
• Public market features
• Packet data
• CCTV
• Network operation centres
• Billing,
• Custom features
• Location services
• Regional deviation of operational procedures

Network DNA depends on implementation variants
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GSM-R system diversity

• Country specific mix of vendors
• System integrity dependency with
• National / international solutions
• Standard evolution
• Hardware evolution
• Software evolution

• NSS vendor 1

Terminal vendor a,b,c
BSS vendor 1

• NSS vendor 2

BSS vendor 1
Terminal vendor d,e,a
BSS vendor 2
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GSM-R system diversity
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Managed system diversity

• Challenge Ensure system integrity
• Over live span of GSM-R
• Over live span of ETCS
• Solution
• Commitment of vendors to portfolio integrity
• Definition of ERTMS live cycle process
• integrity to be ensured through independent body

Country D
Country C
Country B
Country A
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Version Management ERTMS TSI Index 61

• What is the version management?
• - 3 Processes - 1 Prerequisite
• GSM-R Specification Process SP(GSM-R)
• Takes EIRENE Specs FRS/SRS from level x to
  x1/y1
• GSM-R Upgrade Process UP(GSM-R)
• Takes entire European GSM-R System from x to x1
• GSM-R Maintenance Process MP(GSM-R)
• Maintains the GSM-R System
• Where are we in defining the process?
• 02/2007 GSM-R IG submitted draft to UIC
• 03/2007 GSM-R IG submitted draft to European
  Railway Agency

• Objectives of Version management
• Allow evolution of standards
• Maintain interoperability
• Ensure system integrity over lifecycle

Establishment of an European Test-Lab is
essential
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Wrap up

• GSM-R is a live system widely deployed
• Provides flexibility for in-country and global
  evolution
• Delivers QoS at highest levels
• Is impacted by evolutions of ETCS and GSM-R
  standards
• Requires maintenance and a ERTMS system authority
• Thank you