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GSM-R is becoming IP ready

GSM-R is becoming IP ready. Robert SARFATI Operators’ Group Chairman ETSI Technical Committee Rail Chairman SYSTRA FIRSE. Background: GSM-R an European choice.

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GSM-R is becoming IP ready

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  1. GSM-R is becoming IP ready Robert SARFATI Operators’ Group Chairman ETSI Technical Committee Rail Chairman SYSTRA FIRSE

  2. Background: GSM-R an European choice In Europe, existing standard technologies were considered for the new digital radio technology, The choice of GSM was finalized in 1995. GSM-R standards were developed based on GSM R99 technology and included all railways specific requirements and an allowance of a specific additional frequency range • Enhanced Location Dependent Addressing (eLDA) • Enhanced Railway Emergency Call (eREC) • Short Message Service to Functional Number • Functional Numbering • Location Dependent Addressing • High speed – up to 500 km/h Railway functional Requirements (EIRENE) • Voice Group Call Service (VGCS) • Voice Broadcast Service (VBS) • Enhanced Multi Level Precedence and Pre-emption(eMLPP) GSM enhancementsfor railways ( ETSI EN301515) ) • All functionalities available for GSM-R including • General Packet Radio Service (GPRS) • Enhanced Data Rates for GSM Evolution Standard GSM functionality l Applications

  3. Functionalities ensured by GSM-R • GSM-R is a worldwide standard, developed within the frame of the GSM ETSI standards to include Rail & Transport needs. • It includes a dedicated radio spectrum for exclusive rail use, all over Europe. • It is the bearer for ETCS and Track-to-Train radio . • It allows for evolution towards Packet Switching GPRS/EGPRS • It includes features specific for Railways operations . • It includes a dedicated European Frequency Band (876-880 / 921-925 MHz) with extension possible within (873-915 / 918-960 MHz) and other GSM frequency bands* such as the 1800 MHz for worldwide application. * As listed in ETSI TS 100 910

  4. Standardization: a continuous process Rel '99 Phase 2 Rel-4 Rel-N 1992 1997 2000 2001 2002 GPRS EGPRS GSM 3GPP/UMTS/LTE Rel-12 2013 Rel '99: Release 1999

  5. From an European standard • In most of the European Countries GSM-R is in operationand ETCS L2 roll out is relying on GSM-R: • 70,000 km of track are in GSM-R operation just in Europe and 84,000 km more are planned to be covered in addition.*) *) source: UIC e-News 311

  6. To a worldwide standard GSM-R is expanding worldwide: 138,000 km are planned to be covered outside Europe. * • With Contracts awarded** in: • India • Turkey • Saudi//UAE/Qatar/Oman • Algeria/Libya/Morocco/Tunisia • South Africa • Australia • China • Russia/Turkmenistan * Source: Kapsch CarrierCom, Nokia Siemens Networks - GSM-R in operation ** Source UIC and GSM-R IG

  7. MoU ERTMS– A Memorandum of Understanding ERTMS was signed between the European Commission, European Railway Agency and the Rail Sector Organisations : The Parties note the commitment of the GSM-R Industry Group members to the long-term support of GSM-R technology, at least until 2025. Nevertheless telecommunications systems usually have a much shorter life cycle than signalling systems. For this reason, it should be possible to replace the 'telecommunications part of on-board equipment without this having an impact on the 'safety critical signalling path. Today ETCS applications work with GSM-R circuit-switched services. It does seem possible, however, to use packet-switch systems (e.g. GPRS) and, in the longer term, other IP-based standards, without impacting on the ETCS specifications. From the European Legislation perspective

  8. Two Mandates were notified and endorsed by CEN/CENELEC and ETSI. Mandate M/483 – Mandate for programming and standardization addressed to the European Standardization Organizations under Directive 2008/57/EC in the field of the interoperability of the rail system within the European Union. Mandate M/486 – Mandate for programming and standardization addressed to the European Standardization Bodies in the field of urban rail. From the European Mandates perspective

  9. Step 1: Needs analysis Narrow Band & Mission Critical Applications Train Radio ETCS Operation and Maintenance Teams Train Maintenance crew applications Broadband Driver Look Ahead CCTV Real time passenger video information Mail, WEB for passengers • Red – Railway Network supported applications Critically for Railway Operations • Blue – Potential Parallel networks supported applications Bandwidth

  10. Step 2: NSS and FTS Migration FTS Foreign Network From R99 To R4 BICN • NSS: • From R99 to BICN R4 Core Network architecture and PS Roaming Exchange • NSSto FTS: • SIP introduction at Interface, VRS with IP interface. • Transmission network • IP Guideline • IP QoS • GPRS/EGPRS for ETCS BSS BSC Growing, improved applications BTS BICN: Bearer Independent Core Network PS : Packet Switching IP: Internet Protocol QoS: Quality of Service SIP: Session Initiation Protocol

  11. Step 3: BSS & Terminals Migration FTS Foreign Network From R99 To R4+ features • NSS: From R4 to R4+ Core Network architecture and features • NSSto FTS: SIP phase 2 introduction at Interface • Transmission network : IP introduction within distributionnetwork • IP BSS: • “Full IP end to end interface over the Abis interface of BSS” • Terminals • Software Defined Radio • VoIP over the Air interface BSS BSC IP: Internet Protocol FTS: Fixed Terminal System SIP: Session Initiation Protocol VOIP: Voice Over IP NSS: Network Subsystem BSS: Bas Station Subsystem BTS

  12. The analysis showed that communication technology evolution is not complete, but the IP based technology is the only stable platform. The worldwide evolution shows that GSM/UMTS is still a long term technology for voice and preserves more than 80% of railways assets while evolving toward IP. The roadmap should be « railways needs evolution » based, not « technology only » driven. It shall, if possible, address “all transport” needs, and if feasible worldwide through a 3GPP type organization. GSMR-IP is Global, allows from the Shelves delivery, ensures Multi-supplier environment, is Reliable, prepared for Innovation and answers Promises. Conclusion

  13. THANK YOU rsarfati@systra.com www.systra.com UIC ERTMS/GSM-R Operator’s Group Chairman European Telecommunications Standard Institute Rail Telecoms Chairman

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