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Content for  TR 22.989  Word version:  19.2.0

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7  Performance communication applications related use casesp. 120

7.1  Use cases related to transmission of real time videop. 120

7.1.1  Introductionp. 120

7.1.2  Use Case: An FRMCS User requesting another FRMCS User to transmit real time videop. 120

7.1.3  Use Case: An FRMCS User receiving a real time video request to transmit real time videop. 121

7.1.4  Use case: An FRMCS User accepting a request to transmit real time videop. 122

7.1.5  Use case: An FRMCS User rejecting a request to transmit real time videop. 123

7.1.6  Use case: An FRMCS User ignoring a request to transmit real time videop. 124

7.2  Transfer of CCTV archives related use casesp. 124

7.3  Use Case: Massive Inter-carriage data transferp. 129

7.4Void

7.5  On-train outgoing voice communication from train staff towards a ground user related use casesp. 130

7.6  Real-time video communication (video conferencing) related use casesp. 136

7.6.1  Introductionp. 136

7.6.2  Use case: Initiation of video conferencep. 137

7.6.3  Use case: Leave and re-join a video conferencep. 137

7.6.4Void

7.6.5  Use case: Termination of a video conferencep. 138

7.6.6  Use case: Changes from a video conference to a voice-only conferencep. 139

7.6.7  Use case: Change from a voice-only conference to a video conferencep. 140

7.6.8  Use case: Join an ongoing video conferencep. 141

7.7  Real-time automatic translation of languages related use cases |R19|p. 141


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