Study on feasibility of SATCOM for railway communication

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Final Report NPV in the long term. GEO/Ka-band offers a good competitive edge in economic terms in the same class as a moderately conservative LTE estimate. In addition, the modularity and the OPEX-intensive economic model proposed by SATCOM solutions offer the possibility of a gradual implementation. In stark contrast, LTE implies that in general a small number of infrastructure managers should have to make strong initial investments to deploy terrestrial infrastructure, and with little room for a scaled deployment, requiring instead a comprehensive landbased infrastructure to provide initial operating capability. All this makes LTE a more financiallydemanding solution compared with that of SATCOM broadband candidates. As a result, SATCOM solutions can be implemented at a rather low and progressive initial investment in select rail services to fulfil the current demand, hence providing a solid platform to stand as either a stop-gap measure for more investment-demanding solutions, or as initial proof-of-concept and progressively ramped-up services for full-scale deployment in their own right. 1.7 GENERAL CONCLUSIONS AND RECOMMENDATIONS Figure 7 shows the complete compliance matrix of technical, multi-technology and non-technical criteria for the eleven SATCOM systems evaluated. This matrix shows that all the SATCOM solutions assessed have more than one criterion not compliant plus some partial compliant, as well. It means that there is not any SATCOM system fully compliant with current criteria identified. This is mainly because GSM-R voice requirements become the main barrier for SATCOM, due principally to the fact that their values are out of the scope of any current SATCOM solution (in terms of availability, latency and even capacity for the whole European demand). Therefore, it is strongly recommended to reconsider such requirement‘s values (i.e. latency and availability) taking into account the safety cases 4 for these scenarios where SATCOM could be working standalone (e.g. remote/rural areas). Having a look of the complete compliance matrix in more detail, it can be observed that: - All the solutions are compliant with the multi-technology criterion, meaning that all of them can be integrated within a FRMCS consisting of several communications systems (i.e. heterogeneous technologies) and allowing the convergence of networks that would enable a multi-link scenario. - The system technically best evaluated (the MEO/C-band solution) is also the worst evaluated non-technically. It is because of the MEO/C-band is nowadays only a theoretical solution 5 . - The IRIS FOC solution has a similar behaviour than the MEO/C-band, since its technical evaluation is highly positive (only with a bad grade on the double-hop delay). In addition, this solution is currently planned, although from 2025. 4 It is worth mentioning that a similar situation have been considered in the aeronautical environment, where ATM (Air Traffic Management) applications requirements are classified according the airspace domain, such as the APT/TMA (Airport/Terminal Manoeuvring Area), ENR (En Route) and the ORP (Oceanic, Remote and Polar). For example, in the areas where SATCOM is the only mean of communications (i.e. ORP), QoS requirements (e.g. latency) are relaxed, and not only to make possible the use of SATCOM where no other terrestrial system is available, but also because the specific features of these domains (in terms of number of users, operations required, etc) make possible this relaxation keeping the safety case. For the contrary, in APT/TMA, it is mandatory the presence of, at least, two different links, i.e. multilink (LDACS/VDL2, AeroMACs). 5 Despite the MEO/C-band is only a theoretical solution, a similar solution exists nowadays. It is a MEO/S-band (ICO), which is currently reaching its end of life. Doc.Nº: SRAIL-FNR-010-IND Edit./Rev.: 1/1 Date: 16/02/2017 Page 32 of 285
Final Report - Some of the other systems best positioned, the GEO/C-band solution, has main problems on the double-hop delay, handhelds and security but, on the other hand, its non-technical evaluation is largely positive. Criterion ID 1 2 3 4 5 6 7 8 9 10 11 Iridium NEXT MEO / C-band Inmarsat 4 (BGAN) - Inmarsat 6 (ICE) GEO / L-band + ANTARES CS Satcom technology Thuraya GEO / S-band GEO / C-band GEO / X-band SmartLNB GEO / Ku-band Inmarsat 5 (Global Xpress) CRT-TECH-1 NC C NC C (Low) NC C (Low) C (Low) NC NC NC NC CRT-TECH-2 C (Low) C (High) C (Low) C (High) C (Low) C (Low) C (High) C (High) C (High) C (High) C (High) CRT-TECH-3 C C C C C C C C C C C CRT-TECH-4a C (High) C (High) NC C (Low) C (Low) NC C (Low) C (Low) NC C (Low) C (Low) CRT-TECH-4b C (High) C (High) NC NC NC NC NC NC NC NC NC CRT-TECH-5 C (High) C (High) C (Low) C (Low) C (Low) C (Low) C (Low) C (Low) C (Low) C (Low) C (Low) CRT-TECH-6 C C NC C C C C C C C NC CRT-TECH-7 NC C NC C (High) NC C (High) C C C (High) C C CRT-TECH-8 NC C PC C NC C C C C C C CRT-TECH-9 C C C C C C C C C C C CRT-TECH-10 C C C C (Low) C PC C C PC C C CRT-TECH-11 C C C C (Low) C (Low) C (Low) C C C C (High) C (High) CRT-TECH-12 NC C NC C NC C C C C C NC CRT-TECH-13 C C C C C C C C C C C CRT-TECH-14 C C C C NC C C C PC C C CRT-TECH-15 C (Low) C (High) C C (Low) C (Low) C (Low) C (High) C (High) C (Low) C (High) C (High) CRT-TECH-16 C (Low) C (Low) C (Low) C (Low) NC C (Low) C (High) C C (High) C (High) C (Low) CRT-TECH-17 C (Low) C C (Low) PC C (Low) C PC PC PC PC PC CRT-TECH-18 C (Low) C (High) C (High) C (High) C (Low) C (High) C (High) C (High) C (High) C (High) C (High) CRT-TECH-19 NC NC C NC NC PC NC NC PC NC NC CRT-MULT-1 C (Low) C (High) C (Low) C C (Low) C C (High) C (High) C C (High) C (High) CRT-NONT-1 PC NC C NC PC PC C C C C PC CRT-NONT-2 C C C C C C C PC PC PC PC CRT-NONT-3 C NC C PC C C C C C C C CRT-NONT-4 C C C N/A N/A N/A C N/A C C N/A CRT-NONT-5 C C C N/A N/A N/A C N/A C C N/A CRT-NONT-6 PC C PC C PC PC PC PC PC PC PC CRT-NONT-7 C NC PC NC C C C C C C C Figure 7: Complete compliance matrix Therefore, the main conclusions that can be drawn after the assessment of all criteria are that: - No SATCOM system being the only mean of communications is fully compliant with all the current criteria identified. - Some of the best-positioned solutions (existing systems operating at lower frequency bands, such as GEO/S- or C-band) could be integrated within a FRMCS with some limitations in some of the applications to be provided. Hence, and taking into account the possible limitations of best-positioned existing SATCOM solutions, the following recommendations are provided: - Some scenarios are more propitious that others when it comes to deploying SATCOM on railways. They are the High Speed Lines and Regional Lines. - It is very important to reconsider the type of applications that should be supported by a SATCOM system, since they will limit the feasibility of the SATCOM solution. In this case, for example, if the SATCOM system was just to provide ETCS data (i.e. not considering voice services): Doc.Nº: SRAIL-FNR-010-IND Edit./Rev.: 1/1 Date: 16/02/2017 Page 33 of 285
Page 1 and 2: Study on feasibili
Page 3 and 4: Final Report RECORD OF EDITIONS AND
Page 5 and 6: Final Report TABLE OF CONTENTS Chap
Page 7 and 8: Final Report TABLE OF CONTENTS Chap
Page 9 and 10: Final Report FIGURES INDEX Descript
Page 11 and 12: Final Report Figure 64: Certificati
Page 13 and 14: Final Report TABLES INDEX Descripti
Page 15 and 16: Final Report ACRONYMS ACM ATM BGAN
Page 17 and 18: Final Report VLR Visitor Location R
Page 19 and 20: Final Report In order to successful
Page 21 and 22: Final Report Business Communication
Page 23 and 24: Final Report Figure 2: Railway comm
Page 25 and 26: Final Report CRT-NONT-2 CRT-NONT-3
Page 27 and 28: Final Report 7 8 9 10 GEO / C-band
Page 29 and 30: Final Report 1.5.1 Cost Benefit Ana
Page 31: Final Report or GEO/C-band, as well
Page 35 and 36: Final Report 2. INTRODUCTION 2.1 DO
Page 37 and 38: Final Report 2.4 STUDY METHODOLOGY
Page 39 and 40: Final Report 2.5 DOCUMENT STRUCTURE
Page 41 and 42: Final Report RD-23 D020 ANTARES Com
Page 43 and 44: Final Report Latency Bandwidth 25 2
Page 45 and 46: Final Report Two-way communication
Page 47 and 48: Final Report Table 8: Satellite con
Page 49 and 50: Final Report Star topology is the m
Page 51 and 52: Final Report Satcom System (Railway
Page 53 and 54: Final Report Parameter Definition Q
Page 55 and 56: Final Report Parameter Types of ter
Page 57 and 58: Final Report Services & Application
Page 59 and 60: Final Report Parameter Description
Page 61 and 62: Final Report 5. IDENTIFICATION OF C
Page 63 and 64: Final Report Non-technical and non-
Page 65 and 66: Final Report 6.2 SURVEY OF SATCOM S
Page 67 and 68: Final Report Maritime Transp
Page 69 and 70: Final Report 6.2.1.2.2 Ground segme
Page 71 and 72: Final Report Figure 20: Globalstar
Page 73 and 74: Final Report packet and circuit swi
Page 75 and 76: Final Report Handovers Given that t
Page 77 and 78: Final Report Routing O3b does not u
Page 79 and 80: Final Report Thuraya‘s satellites
Page 81 and 82: Final Report generation of more adv
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Final Report Figure 29: IS-33e Epic
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Final Report Figure 30: LuxGovSat s
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Final Report o Enviromental monitor
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Final Report since it is able to op
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Final Report Figure 34:Inmarsat 5 s
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Final Report 6.2.13.2.4 Services GX
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Final Report G/T), which allow the
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Final Report DAMA Random Access (RA
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Final Report In fact, some of these
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Final Report Main advantages of OFD
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Final Report (E-SSA) scheme. On the
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Final Report For each group of stak
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Final Report Figure 43: SOTM & Trai
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Final Report Other responses (not s
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Final Report SATCOM provides rai
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Final Report SOTM suitability for t
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Final Report Features and functiona
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Final Report Support for handheld t
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Final Report Function/service Main
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Final Report Concerns regarding SAT
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Final Report Economic feasibility o
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Final Report 8. PRE-SELECTION OF SA
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Final Report 8 9 10 GEO / X-band (D
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Final Report Criterion ID CRT-TECH-
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Final Report Criterion ID CRT-TECH-
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Final Report 7 - GEO / C-band 8 - G
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Final Report a justification regard
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Final Report Criterion ID Criterion
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Final Report Stakeholders Finance
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Final Report other one-time invest
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Final Report 9.3.2.4 Cost Model The
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Final Report SATCOM CAPEX Model Cos
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Cell Range (km) #Base Stations Fina
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Trips in Millions 2020 2021 2022 20
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M€ M€ Final Report 5.000 4.000
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Final Report Inmarsat 4/6 1.997 2.8
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M€ Final Report Regarding break-e
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Final Report Broadband is used as
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Final Report Sensitivity Ranking LT
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Final Report Main Cost Sensitivitie
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Final Report CRT-NONT-3 CRT-NONT-4
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Final Report 9.3.5.2 Vertical asses
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Final Report Criterion ID 1 2 3 4 5
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Final Report northern part of Europ
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Final Report 11.1.2 Findings regard
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Final Report - All the solutions ar
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Final Report TECHNICAL SCORE (ETCS
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Final Report system, since they wil
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Final Report the deployment of terr
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Final Report products and services
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Final Report to this weakness thank
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Final Report A. CRITERIA DEFINITION
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Final Report EEIG 96S126 / 02S1266
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Final Report To get high quality vo
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Final Report For the future railway
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Final Report Therefore, and as a re
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Final Report CRT-TECH-18 The propos
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Final Report The NGN architecture c
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Final Report IP Network Access Netw
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Final Report Survey on operationa
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Final Report RATIONALE Costs are a
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Final Report B. SURVEY QUESTIONS Th
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Final Report 4. (SATCOM) What do yo
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Final Report The following question
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Final Report a. Yes b. No 14. (cont
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Final Report 19. (SATCOM) Can your
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Final Report f. Others/ additional
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Final Report b. High OPEX c. Scarce
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Final Report C. TECHNICAL ASSESSMEN
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Final Report Iridium NEXT Criterion
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Final Report C.1.1 C.1.1.1 Addition
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Final Report C.2 SATCOM SOLUTION 2:
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Final Report MEO / C-band Criterion
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Final Report T down is the propagat
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Final Report Inmarsat 4 (BGAN) - In
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Final Report Inmarsat 4 (BGAN) - In
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Final Report Table 55: Inmarsat 4 /
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Final Report GEO / L-band + ANTARES
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Final Report T up is the propagatio
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Final Report Thuraya Criterion ID C
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Final Report Thuraya Criterion ID C
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Final Report GEO / S-band Criterion
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Final Report GEO / S-band Criterion
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Final Report GEO / C-band Criterion
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Final Report GEO / C-band Criterion
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Final Report GEO / X-band Criterion
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Final Report GEO / X-band Criterion
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Final Report SmartLNB Criterion ID
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Final Report C.10 SATCOM SOLUTION 1
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Final Report GEO / Ku-band Criterio
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Final Report GEO / Ku-band Criterio
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Final Report C.11 SATCOM SOLUTION 1
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Final Report Inmarsat 5 (Global Xpr
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Final Report Inmarsat 5 (Global Xpr
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Final Report C.11.1.2 Inmarsat 5 -
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INDRA SISTEMAS Project Manager Xavi
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Study on feasibility of SATCOM for railway communication

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