Study on feasibility of SATCOM for railway communication

Final Report
Figure 30: LuxGovSat system coverage ........................................................................................ 85
Figure 31: SmartLNB solution system architecture ........................................................................ 87
Figure 32: GEO/Ku-band SATCOM architecture ........................................................................... 88
Figure 33: Global Xpress architecture for railways ......................................................................... 90
Figure 34:Inmarsat 5 satellite (Boeing 702HP) .............................................................................. 91
Figure 35: Inmarsat-5 satellites coverage ...................................................................................... 91
Figure 36: Global Xpress SAS automatic switchover ..................................................................... 92
Figure 37: GEO/Ka-band SATCOM architecture ........................................................................... 94
Figure 38: Ka-SAT coverage over Europe (frequency reuse is showed by different colours) ....... 96
Figure 39: Evolution of DVB standards for satellite ........................................................................ 98
Figure 40: Evolution of the Return Channel via Satellite ................................................................ 99
Figure 41: SOTM & Trains Survey: introduction page .................................................................. 106
Figure 42: SOTM & Trains Survey: multiple-choice answers ....................................................... 106
Figure 43: SOTM & Trains Survey: question groups .................................................................... 107
Figure 44: SOTM & Trains Survey: closing page (with prompt for follow-up email) .................... 107
Figure 45: Participation rate.......................................................................................................... 108
Figure 46: SOTM main trends ...................................................................................................... 109
Figure 47: Technological challenges for SATCOM in safety applications .................................... 110
Figure 48: Non-technological challenges for SATCOM in safety applications ............................. 110
Figure 49: Drivers for SATCOM adoption in the railway domain.................................................. 111
Figure 50: Future SOTM frequency bands ................................................................................... 111
Figure 51: SOTM constellations ................................................................................................... 112
Figure 52: EN-50155 compliance ................................................................................................. 112
Figure 53: SOTM suitability for the railway domain ...................................................................... 113
Figure 54: Current SATCOM products for railway or similar domain ........................................... 113
Figure 55: Air interface standards ................................................................................................ 114
Figure 56: Features and functionalities for SOTM scenarios ....................................................... 115
Figure 57: Present/future provision of services for safety communications ................................. 116
Figure 58: Support for handheld terminals ................................................................................... 117
Figure 59: Awareness of initiatives on GSM-R replacement ........................................................ 118
Figure 60: Current GSM-R usage ................................................................................................. 118
Figure 61: Interest in 4G/LTE for future railway communications ................................................ 119
Figure 62: SATCOM role in future railway communications ......................................................... 120
Figure 63: Concerns regarding SATCOM in the railway domain ................................................. 121
Doc.Nº: SRAIL-FNR-010-IND
Edit./Rev.: 1/1
Date: 16/02/2017
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