Content for TR 22.889 Word version: 17.4.0
7 Performance communication applications related use cases
7.1 Use cases related to transmission of real time video
7.2 Transfer of CCTV archives related use cases
7.3 Use Case: Massive Inter-carriage data transfer
7.5 On-train outgoing voice communication from train staff towards a ground user related use cases
7.6 Real-time video communication (video conferencing) related use cases
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7 Performance communication applications related use cases p. 104
7.1 Use cases related to transmission of real time video p. 104
7.1.1 Introduction p. 104
7.1.2 Use Case: An FRMCS User requesting another FRMCS User to transmit real time video p. 104
7.1.2.1 Description p. 104
7.1.2.2 Pre-conditions p. 104
7.1.2.3 Service flows p. 105
7.1.2.4 Post-conditions p. 105
7.1.2.5 Potential requirements and gap analysis p. 105
7.1.3 Use Case: An FRMCS User receiving a real time video request to transmit real time video p. 105
7.1.3.1 Description p. 105
7.1.3.2 Pre-conditions p. 105
7.1.3.3 Service flows p. 106
7.1.3.4 Post-conditions p. 106
7.1.3.5 Potential requirements and gap analysis p. 106
7.1.4 Use case: An FRMCS User accepting a request to transmit real time video p. 106
7.1.4.1 Description p. 106
7.1.4.2 Pre-conditions p. 106
7.1.4.3 Service flows p. 106
7.1.4.4 Post-conditions p. 106
7.1.4.5 Potential requirements and gap analysis p. 107
7.1.5 Use case: An FRMCS User rejecting a request to transmit real time video p. 107
7.1.5.1 Description p. 107
7.1.5.2 Pre-conditions p. 107
7.1.5.3 Service flows p. 107
7.1.5.4 Post-conditions p. 107
7.1.5.5 Potential requirements and gap analysis p. 108
7.1.6 Use case: An FRMCS User ignoring a request to transmit real time video p. 108
7.1.6.1 Description p. 108
7.1.6.2 Pre-conditions p. 108
7.1.6.3 Service flows p. 108
7.1.6.4 Post-conditions p. 108
7.1.6.5 Potential requirements and gap analysis p. 108
7.2 Transfer of CCTV archives related use cases p. 108
7.2.1 Introduction p. 108
7.2.2 Use Case: Bulk Transfer of CCTV archives from Train to Ground p. 109
7.2.2.1 Description p. 109
7.2.2.2 Pre-conditions p. 112
7.2.2.3 Service flows p. 112
7.2.2.4 Post-conditions p. 112
7.2.2.5 Potential requirements and gap analysis p. 113
7.3 Use Case: Massive Inter-carriage data transfer p. 113
7.3.1 Description p. 113
7.3.2 Pre-conditions p. 113
7.3.3 Service flows p. 113
7.3.4 Post-conditions p. 113
7.3.5 Potential requirements and gap analysis p. 114
7.4 Void
7.5 On-train outgoing voice communication from train staff towards a ground user related use cases p. 114
7.5.1 Introduction p. 114
7.5.2 Use case: Initiation of on-train outgoing voice communication from train staff p. 114
7.5.2.1 Description p. 114
7.5.2.2 Pre-conditions p. 114
7.5.2.3 Service flows p. 114
7.5.2.4 Post-conditions p. 115
7.5.2.5 Potential requirements and gap analysis p. 116
7.5.3 Use case: Termination of on-train outgoing voice communication from train staff p. 116
7.5.3.1 Description p. 116
7.5.3.2 Pre-conditions p. 117
7.5.3.3 Service flows p. 117
7.5.3.4 Post-conditions p. 117
7.5.3.5 Potential requirements and gap analysis p. 118
7.5.4 Use case: Service interworking with GSM-R p. 119
7.5.4.1 Description p. 119
7.5.4.2 Pre-conditions p. 119
7.5.4.3 Service flows p. 119
7.5.4.4 Post-conditions p. 119
7.5.4.5 Potential requirements and gap analysis p. 120
7.6 Real-time video communication (video conferencing) related use cases p. 120
7.6.1 Introduction p. 120
7.6.2 Use case: Initiation of video conference p. 121
7.6.2.1 Description p. 121
7.6.2.2 Pre-conditions p. 121
7.6.2.3 Service flows p. 121
7.6.2.4 Post-conditions p. 121
7.6.2.5 Potential requirements and gap analysis p. 121
7.6.3 Use case: Leave and re-join a video conference p. 122
7.6.3.1 Description p. 122
7.6.3.2 Pre-conditions p. 122
7.6.3.3 Service flows p. 122
7.6.3.4 Post-conditions p. 122
7.6.3.5 Potential requirements and gap analysis p. 122
7.6.4 Void
7.6.5 Use case: Termination of a video conference p. 122
7.6.5.1 Description p. 122
7.6.5.2 Pre-conditions p. 122
7.6.5.3 Service flows p. 123
7.6.5.4 Post-conditions p. 123
7.6.5.5 Potential requirements and gap analysis p. 123
7.6.6 Use case: Changes from a video conference to a voice-only conference p. 123
7.6.6.1 Description p. 123
7.6.6.2 Pre-conditions p. 123
7.6.6.3 Service flows p. 123
7.6.6.4 Post-conditions p. 124
7.6.6.5 Potential requirements and gap analysis p. 124
7.6.7 Use case: Change from a voice-only conference to a video conference p. 124
7.6.7.1 Description p. 124
7.6.7.2 Pre-conditions p. 124
7.6.7.3 Service flows p. 124
7.6.7.4 Post-conditions p. 124
7.6.7.5 Potential requirements and gap analysis p. 125
7.6.8 Use case: Join an ongoing video conference p. 125
7.6.8.1 Description p. 125
7.6.8.2 Pre-conditions p. 125
7.6.8.3 Service flows p. 125
7.6.8.4 Post-conditions p. 125
7.6.8.5 Potential requirements and gap analysis p. 125
