Study on feasibility of SATCOM for railway communication
SRAIL-FNR-010-IND%20-%20FinalReport_v1.1_20170216
SRAIL-FNR-010-IND%20-%20FinalReport_v1.1_20170216
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Final Report<br />
CRT-TECH-8<br />
CRT-TECH-9<br />
CRT-TECH-10<br />
CRT-TECH-11<br />
CRT-TECH-12<br />
CRT-TECH-13<br />
CRT-TECH-14<br />
CRT-TECH-15<br />
CRT-TECH-16<br />
CRT-TECH-17<br />
CRT-TECH-18<br />
CRT-TECH-19<br />
The proposed <strong>SATCOM</strong> system shall allow (at least) the estimated number <strong>of</strong> European FRMCS users by<br />
2030 registered simultaneously.<br />
The proposed <strong>SATCOM</strong> system shall provide priority and pre-empti<strong>on</strong> mechanisms.<br />
The proposed <strong>SATCOM</strong> system shall support Data and Voice services.<br />
The proposed <strong>SATCOM</strong> system shall support as minimum Low bandwidth applicati<strong>on</strong>s<br />
―user-to-user‖ -―multi-user‖ and ―uni-directi<strong>on</strong>al‖ – ―bi-directi<strong>on</strong>al‖ types <strong>of</strong> communicati<strong>on</strong>s <strong>for</strong> both voice<br />
and data services shall be provided.<br />
The minimum required coverage <strong>of</strong> the <strong>SATCOM</strong> system shall be Europe.<br />
The <strong>SATCOM</strong> system shall provide communicati<strong>on</strong>s <strong>for</strong> remote terminals when stati<strong>on</strong>ary and when<br />
travelling at speeds up to the maximum allowable line speed or 500 km/h, whichever is the lower.<br />
The proposed <strong>SATCOM</strong> system shall be flexible to support (at least) new created apps in the future.<br />
The proposed <strong>SATCOM</strong> system shall be highly and easily scalable.<br />
The following types <strong>of</strong> terminals shall be provided: ―On-board (mobile)‖, ―Handheld‖ and ―Fixed‖.<br />
The proposed <strong>SATCOM</strong> system shall provide high level <strong>of</strong> safety in the in<strong>for</strong>mati<strong>on</strong> exchanged.<br />
The proposed <strong>SATCOM</strong> system shall provide high level <strong>of</strong> security in the in<strong>for</strong>mati<strong>on</strong> exchanged.<br />
Table 2: Summary <strong>of</strong> the technical and functi<strong>on</strong>al criteria identified<br />
Multi-technology criteria<br />
Criteri<strong>on</strong> ID<br />
Criteri<strong>on</strong><br />
CRT-MULT-1<br />
CRT-MULT-2<br />
CRT-MULT-3<br />
CRT-MULT-4<br />
All communicati<strong>on</strong> networks (e.g. <strong>SATCOM</strong> and terrestrial) <strong>of</strong> the future <strong>railway</strong> communicati<strong>on</strong>s architecture<br />
shall be Packet-Switched (PS), since all the applicati<strong>on</strong>s supported shall be IP based.<br />
The end-to-end QoS <strong>of</strong> a communicati<strong>on</strong> call/sessi<strong>on</strong> shall be guaranteed according to user‘s SLA.<br />
Handovers am<strong>on</strong>g systems (aka vertical handovers) shall be transparent to users (i.e. seamless).<br />
Terminals shall support multi-technology in order to avoid having <strong>on</strong>e different terminal per technology.<br />
Table 3: Summary <strong>of</strong> the multi-technology criteria identified<br />
N<strong>on</strong>-technical and n<strong>on</strong>-functi<strong>on</strong>al criteria<br />
Criteri<strong>on</strong> ID<br />
Criteri<strong>on</strong><br />
CRT-NONT-1<br />
Sustained lifecycle covering the full FRMCS timespan without obsolescence<br />
Doc.Nº: SRAIL-FNR-010-IND<br />
Edit./Rev.: 1/1<br />
Date: 16/02/2017<br />
Page 24 <strong>of</strong> 285
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