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TR 22.889 (SA1)
Study on Future Railway Mobile Communication System

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V17.1.0 (Wzip)2019/09  256 p.
V16.6.0 (Wzip)  2019/03  249 p.
V15.1.0 (Wzip)  2017/09  174 p.

Rapporteur:  Mr. Merkel, Jürgen

The railway community is considering a successor communication system to GSM-R, as the forecasted obsolescence of the 2G-based GSM-R technology is envisaged around 2030, with first FRMCS trial implementations expected to start around 2020.
The Future Railway Mobile Communication System (FRMCS) Functional Working Group (FWG) of the International Union of Railways (UIC) have investigated and summarised their requirements for the next generation railway communication system in the Future Railway Mobile Communication User Requirements Specification (FRMCS URS). The present document is based on this input given by the UIC/ETSI TC-RT NG2R.
The present document analyses FRMCS Use cases, system principles of FRMCS and Interworking between GSM-R and FRMCS in order to derive potential requirements.

full Table of Contents for  TR 22.889  Word version:   17.1.0

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1  ScopeWord-p. 19
2  ReferencesWord-p. 19
3  Definitions, and abbreviationsWord-p. 19
4  OverviewWord-p. 21
5  Basic functionality use casesWord-p. 23
5.1  IntroductionWord-p. 23
5.2  Device power on and shut-down related use casesWord-p. 23
5.3  Use case: Power on the UEWord-p. 24
5.4  Use case: Access to the FRMCS System to activate the FRMCS EquipmentWord-p. 24
5.5  Use case: Controlled power down of UEWord-p. 25
5.6  Use case: Uncontrolled power down UEWord-p. 26
6  Critical communication applications related use casesWord-p. 27
6.1  IntroductionWord-p. 27
6.2  Multi-train voice communication for Drivers and Ground FRMCS User(s)Word-p. 27
6.3  On-train outgoing voice communication from the Driver towards the Controller(s) of the trainWord-p. 36
6.4  Railway emergency communicationWord-p. 44
6.5  Use case: Automatic Train Control (ATC) support by the FRMCS SystemWord-p. 68
6.6  Trackside Maintenance Warning System communication related use casesWord-p. 69
6.7  Pushed Real Time Video streamingWord-p. 71
6.8  Public emergency call related use casesWord-p. 73
6.9  Data communication for possession management related use casesWord-p. 76
6.10  Recording of communicationWord-p. 78
6.11  Remote control of engines communication related use casesWord-p. 79
6.12  Automatic Train Operation data communicationWord-p. 80
6.13  Monitoring and control of critical infrastructure related use casesWord-p. 81
6.14  Use case: Data transmission in real timeWord-p. 84
6.15  On-train incoming voice or video communication from the Controller(s) of the train towards the driversWord-p. 86
6.16  Use cases on data communication for Train Operation System CommunicationWord-p. 88
6.17  On-train safety device to ground communicationWord-p. 90
6.18  Train Integrity monitoring data communicationWord-p. 93
6.19  Use case: Broadcast of public emergency warning informationWord-p. 95
6.20  Safety related critical advisory messagingWord-p. 97
6.21  Automatic Train Control data communicationWord-p. 98
6.22  Voice communication transfer related use casesWord-p. 101
7  Performance communication applications related use casesWord-p. 104
7.1  Use cases related to transmission of real time videoWord-p. 104
7.2  Transfer of CCTV archives related use casesUpWord-p. 108
7.3  Use Case: Massive Inter-carriage data transferWord-p. 113
7.5  On-train outgoing voice communication from train staff towards a ground user related use casesWord-p. 114
7.6  Real-time video communication (video conferencing) related use casesWord-p. 120
8  Business communication applications related use casesWord-p. 126
8.1  Multimedia applications related use casesWord-p. 126
8.2  Use Case: Live streaming of multimediaWord-p. 126
8.3  Use Case: Bulk transfer of multimedia from ground to trainWord-p. 127
9  Critical support applications related use casesWord-p. 128
9.1  OverviewWord-p. 128
9.2  Assured voice communication (AVC)Word-p. 128
9.3  Functional identities and role managementWord-p. 133
9.4  Location services related use casesWord-p. 151
9.5  FRMCS User communication handling related use casesWord-p. 154
9.7  Multi user talker control related use casesWord-p. 158
9.8  Authorisation of communicationWord-p. 166
9.9  Authorisation of applicationUpWord-p. 167
9.10  Sharing FRMCS Equipment by FRMCS UsersWord-p. 172
9.11  FRMCS naming authorityUpWord-p. 173
9.12  Wayside-Centric Automatic Train ControlWord-p. 174
9.13  Autonomous Train Control and OperationWord-p. 175
9.14  Virtual CouplingWord-p. 177
9.15  Composite-based train operationWord-p. 180
9.16  Arbitration related use casesUpWord-p. 181
9.17  Data communication to exchange key information for train safety application use casesWord-p. 183
10  Performance support applications related use casesWord-p. 188
11  Business support applications related use casesWord-p. 188
11.1  Charging and Billing information related use casesWord-p. 188
12  FRMCS System principles related use casesWord-p. 189
12.1  FRMCS System principles overviewWord-p. 189
12.2  Area Broadcast Group Communication interworking between GSM-R and FRMCS UsersWord-p. 190
12.3  Location Service interworking between GSM-R and FRMCS UsersWord-p. 191
12.4  Presence interworking between GSM-R and FRMCS UsersWord-p. 192
12.5  Point to Point communication between GSM-R and FRMCS UsersWord-p. 193
12.6  Interworking with legacy systems including LMRWord-p. 194
12.7  Use case: Builds stable positioning framework for FRMCS services and devices including trainborne and handheld devicesWord-p. 195
12.8  Interworking between GSM-R and FRMCSWord-p. 196
12.9  Use case: Bearer flexibilityWord-p. 199
12.10  Use Case: QoS in a railway environmentWord-p. 203
12.11  Use case: Provide broadband and mission critical services with seamless connectivityWord-p. 212
12.12  Use case: Offer railway services high-quality control functions with real-time train status monitoringWord-p. 213
12.13  Use case: Provide call priority during interworking with LMRWord-p. 214
12.14  Use Case: FRMCS Positioning AccuracyWord-p. 216
12.15  Use Case: FRMCS System security frameworkWord-p. 219
12.16  Use Case: Interworking to external networksWord-p. 222
12.17  Use Case: FRMCS On-network/Off-network communicationWord-p. 226
12.18  Call restriction serviceWord-p. 231
12.19  Allocation and isolation of FRMCS communication resourcesWord-p. 232
12.20  FRMCS Equipment capabilities for multiple FRMCS UsersWord-p. 234
12.21  FRMCS System/FRMCS User roaming capabilitiesWord-p. 235
12.22  Use case: Availability - increasing measuresWord-p. 239
12.23  Use case: Flexible use of available contiguous spectrum blocks(s) and related bandwidth(s)Word-p. 240
13  Potential New RequirementsWord-p. 241
14  Conclusion and RecommendationsWord-p. 241
A  Examples of Role managementWord-p. 242
B  Minimum functional and performance requirements for FRMCS from a perspective of Korea LTE-based railway servicesWord-p. 244
C  Applicability to On-network/Off-network communicationWord-p. 248
D  Change historyWord-p. 253

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