Content for TR 22.989 Word version: 20.1.0
6 Critical communication applications related use cases
6.1 Introduction
6.2 Multi-train voice communication for Drivers and Ground FRMCS User(s)
6.2.1 Introduction
6.2.2 Use case: Initiation of Multi-train voice communication for Drivers and Ground FRMCS User(s) communication
6.2.2a Use case: Join an on-going Multi-train voice communication for Drivers and Ground FRMCS User(s) communication
6.2.3 Use case: Termination of Multi-train voice communication for Drivers and Ground FRMCS User(s) communication
6.2.4 Use case: Service Interworking and service continuation between GSM-R and FRMCS for Multi-train voice communication for Drivers and Ground FRMCS User(s) communication
6.2.5 Use case: Merging of two multi-train voice communications initiated by Train Drivers and merged by Train Controller (Ground FRMCS user)
6.2.6 Use case: Merging of one multi-train voice communications initiated by train driver and another initiated by the train controller, merged by the train Controller (Ground FRMCS user)
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6 Critical communication applications related use cases p. 31
6.1 Introduction p. 31
6.2 Multi-train voice communication for Drivers and Ground FRMCS User(s) p. 31
6.2.1 Introduction p. 31
6.2.2 Use case: Initiation of Multi-train voice communication for Drivers and Ground FRMCS User(s) communication p. 32
6.2.2.1 Description p. 32
6.2.2.2 Pre-conditions p. 32
6.2.2.3 Service flows p. 32
6.2.2.4 Post-conditions p. 32
6.2.2.5 Potential requirements and gap analysis p. 33
6.2.2a Use case: Join an on-going Multi-train voice communication for Drivers and Ground FRMCS User(s) communication p. 34
6.2.2a.1 Description p. 34
6.2.2a.2 Pre-conditions p. 34
6.2.2a.3 Service flows p. 35
6.2.2a.4 Post-conditions p. 35
6.2.2a.5 Potential requirements and gap analysis p. 35
6.2.3 Use case: Termination of Multi-train voice communication for Drivers and Ground FRMCS User(s) communication p. 37
6.2.3.1 Description p. 37
6.2.3.2 Pre-conditions p. 37
6.2.3.3 Service flows p. 37
6.2.3.4 Post-conditions p. 38
6.2.3.5 Potential requirements and gap analysis p. 39
6.2.4 Use case: Service Interworking and service continuation between GSM-R and FRMCS for Multi-train voice communication for Drivers and Ground FRMCS User(s) communication p. 40
6.2.4.1 Description p. 40
6.2.4.2 Pre-conditions p. 40
6.2.4.3 Service flows p. 40
6.2.4.4 Post-conditions p. 41
6.2.4.5 Potential requirements and gap analysis p. 41
6.2.5 Use case: Merging of two multi-train voice communications initiated by Train Drivers and merged by Train Controller (Ground FRMCS user) p. 43
6.2.5.1 Description p. 43
6.2.5.2 Pre-conditions p. 43
6.2.5.3 Service flows p. 43
6.2.5.4 Post-conditions p. 44
6.2.5.5 Potential requirements and gap analysis p. 45
6.2.6 Use case: Merging of one multi-train voice communications initiated by train driver and another initiated by the train controller, merged by the train Controller (Ground FRMCS user) p. 46
6.2.6.1 Description p. 46
6.2.6.2 Pre-conditions p. 46
6.2.6.3 Service flows p. 46
6.2.6.4 Post-conditions p. 47
6.2.6.5 Potential requirements and gap analysis p. 47
