Content for TR 23.796 Word version: 16.0.0
4 Scenarios p. 12
4.1 Interworking scenarios with GSM-R p. 12
5 Key issues p. 13
5.1 Key issue 1 - Allowed private communications p. 13
5.2 Key issue 2 - Dynamic group changes based on pre-configured conditions p. 14
5.3 Key issue 3 - Arbitration of incoming communications p. 14
5.4 Key issue 4 - Providing data for a user entering an ongoing MCData group conversation p. 15
5.5 Key issue 5 - Communication priority for functional aliases p. 15
5.6 Key issue 6 - Network initiated activation and de-activation of functional alias(es) p. 15
5.8 Key issue 8 - Functional alias support enhancements for MCPTT p. 16
5.8.0 General p. 16
5.8.1 Key issue 8-1 - Emergency and imminent peril groups p. 16
5.8.2 Key issue 8-2 - Private calls and private emergency calls p. 16
5.8.3 Key issue 8-3 - Temporary voice group calls p. 17
5.8.4 Key issue 8-4 - Ambient listening and remotely initiated calls p. 17
5.8.5 Key issue 8-5 - Use of location dependent functional aliases for private calls p. 17
5.8.6 Key issue 8-6 - Call restrictions when using functional aliases for private calls p. 17
5.8.7 Key issue 8-7 - Multiple use of a functional alias for private calls p. 18
5.8.8 Key issue 8-8 - Limit the number of parallel emergency group communications p. 18
5.9 Key issue 9 - Functional alias used via broadcast p. 18
5.10 Key issue 10 - Functional alias using off-network communication mode p. 19
5.11 Key issue 11 - Multiple functional alias use p. 19
5.12 Key issue 12 - Functional alias support for MCData p. 19
5.12.0 General p. 19
5.12.1 Key issue 12-1 - Short data service (SDS) p. 19
5.12.2 Key issue 12-2 - File distribution (FD) p. 20
5.12.3 Key issue 12-3 - Control functions p. 20
5.13 Key issue 13 - Functional alias support for MCVideo p. 20
5.13.0 General p. 20
5.13.1 Key issue 13-1 - Video group calls p. 20
5.13.2 Key issue 13-2 - Video emergency group calls p. 21
5.13.3 Key issue 13-3 - Video emergency private calls p. 21
5.13.4 Key issue 13-4 - Video control functions p. 21
5.13.5 Key issue 13-5 - Ambient viewing call p. 22
5.14 Key issue 14 - Location information of an MC service user using a specific functional alias p. 22
5.15 Key issue 15 - Prevent de-affiliation when using a specific functional alias(es) p. 22
5.16 Key issue 16 - Interworking with GSM-R p. 23
5.16.0 General p. 23
5.16.1 Key issue 16-1 - Functional alias and alternative addressing scheme for interworking with GSM-R p. 23
5.16.2 Key issue 16-2 - Interworking between MCPTT group call and advanced speech call items used in GSM-R p. 24
5.16.3 Key issue 16-3 - Private call between an MCPTT user and a GSM-R mobile station or controller p. 24
5.16.4 Key issue 16-4 - Bi-directional interworking for MCPTT user positioning information and location information provided for a GSM-R mobile station p. 24
5.16.5 Key issue 16-5 - Bi-directional interworking between MCData SDS and GSM-R SMS p. 25
5.17 Key issue 17 - Provide a list of currently affiliated members of an MC service group associated with the activated functional alias(es) p. 25
5.18 Key issue 18 - List of MCPTT group members who did not acknowledge the group call request p. 25
5.19 Key issue 19 - Limit the number of simultaneous successful service authorizations p. 26
5.20 Key issue 20 - User requests application layer priorities p. 26
5.21 Key issue 21 - Group creation using functional aliases p. 26
5.22 Key issue 22 - Application layer IP connectivity p. 27
5.23 Key issue 23 - Gateway UE function p. 27
5.24 Key issue 24 - Automatic start of an emergency group communication after an emergency group alert p. 28
5.25 Key issue 25 - Additional commencement conditions for MCPTT group call setup p. 28
5.26 Key issue 26 - Call forwarding and call transfer for private calls p. 28
6 Architectural requirements p. 29
6.1 <architectural requirement> p. 29
6.1.1 Description p. 29
