Study on feasibility of SATCOM for railway communication

Final Report
3. RAILWAY APPLICATIONS
User Requirement Specification (URS) document [AD-01] summarises a set of user requirements for
the FRMCS, regardless of the communication technology (i.e. bearer) used. These requirements are
based on the applications foreseen for the FRMCS. The URS describes relevant railway applications
for the future railway mobile communication system(s), their classification and key parameters from a
communications point of view. A brief summary of the main features per application is listed below,
which represent a key input for the subsequent identification of criteria.
Therefore, future railway communication applications have been classified into Critical Communication
Applications (CA), Performance Communication Applications (PA) and Business Communication
Applications (BA). In addition, for each one of these categories, additional support applications have
also been defined, which provides cross services for the communication applications. Examples of
applications in each category are summarised in Table 7
Critical Communication Applications (CA)
• On-train voice communication from driver to
controller(s) and vice-versa
• Multi-train voice communication for drivers including
ground users
• Trackside maintenance voice communication
• Shunting voice/data communication
• Public emergency call
• Railway emergency communication
• Automatic train control/operations communication
Business Communication Applications (BA)
• Inviting-a-user messaging
• Emergency help point for public
• Wireless internet on-train for passengers
• Wireless internet for passengers on platforms
Performance Support Applications (PSA)
Performance Communication Applications (PA)
• On-train voice communication from train staff towards
ground user(s) and vice-versa
• Multi-train voice communication for drivers excluding
ground users
• On-train voice communication
• Communication at stations and depots
• Wireless on-train data communication for train staff
• M&C of non-critical infrastructure
• Real time video
Critical Support Applications (CSA)
• Secured voice/data communication
• Location services
• Authorisation of voice/data communication
• Authorisation of applications
• Prioritisation
• Multi-user talker control
Business Support Applications (BSA)
• Information help point for public • (No BSA defined at URS v2.0)
Table 7: Examples of applications defined and categorised in the URS document
Following figures show attributes‘ statistics of the applications classified and defined in the URS.
Doc.Nº: SRAIL-FNR-010-IND
Edit./Rev.: 1/1
Date: 16/02/2017
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