Content for TR 22.805 Word version: 12.1.0
4 Scenarios and use cases
4.1 Congestion scenarios
4.2 Use case 1 - Managing congested RAN traffic using differentiated service subscription QoS attributes
4.3 Use case 2 - User level traffic control
4.4 Use case 3 - Application data rate control
4.5 Use case 4 - Disaster service priority
4.6 Use case 5 - Managing congested traffic by using appropriate application attributes
4.7 Use case 6 - Content delivery based on RAN congestion status
4.8 Use case 7 - Traffic compression and transcoding
4.9 Use case 8 - Servicing data connection requests/reactivations
4.10 Use case 9 - Voice and video media quality modification
4.11 Use case 10 - Charging policy based on RAN congestion status
4.12 Use case 11 - Multiple applications traffic control over one bearer
4.13 Use case 12 - Application Data Priority Control
4.14 Use case 13 - Protocol Optimization
4 Scenarios and use cases p. 8
4.1 Congestion scenarios p. 8
4.1.1 General p. 8
4.1.2 Identifying user plane traffic using its attributes p. 8
4.1.3 User plane congestion due to full use of cell capacity p. 9
4.1.4 User plane congestion due to 3GPP RAN to EPC interface capacity limitation p. 9
4.2 Use case 1 - Managing congested RAN traffic using differentiated service subscription QoS attributes p. 10
4.2.1 Description p. 10
4.2.2 Pre-conditions p. 10
4.2.3 Service flows p. 10
4.2.4 Post-conditions p. 11
4.2.5 Potential requirements p. 11
4.3 Use case 2 - User level traffic control p. 11
4.3.1 Description p. 11
4.3.2 Pre-conditions p. 11
4.3.3 Service flows p. 11
4.3.4 Post-conditions p. 12
4.3.5 Potential requirements p. 12
4.4 Use case 3 - Application data rate control p. 12
4.4.1 Description p. 12
4.4.2 Pre-conditions p. 12
4.4.3 Service Flows p. 12
4.4.4 Post-conditions p. 13
4.4.5 Potential requirements p. 13
4.5 Use case 4 - Disaster service priority p. 13
4.5.1 Description p. 13
4.5.2 Pre-conditions p. 13
4.5.3 Service flows p. 13
4.5.4 Post-conditions p. 14
4.5.5 Potential requirements p. 14
4.6 Use case 5 - Managing congested traffic by using appropriate application attributes p. 14
4.6.1 Description p. 14
4.6.2 Pre-conditions p. 14
4.6.3 Service flows p. 14
4.6.4 Post-conditions p. 15
4.6.5 Potential requirements p. 15
4.7 Use case 6 - Content delivery based on RAN congestion status p. 15
4.7.1 Description p. 15
4.7.2 Pre-conditions p. 15
4.7.3 Service flows p. 16
4.7.4 Post-conditions p. 16
4.7.5 Potential requirements p. 16
4.8 Use case 7 - Traffic compression and transcoding p. 17
4.8.1 Description p. 17
4.8.2 Pre-conditions p. 17
4.8.3 Service clows p. 18
4.8.4 Post-conditions p. 18
4.8.5 Other service flows p. 18
4.8.5.1 Time-based compression p. 18
4.8.5.2 Location-based compression p. 18
4.8.5.3 Application-based compression p. 18
4.8.6 Potential Requirements p. 18
4.9 Use case 8 - Servicing data connection requests/reactivations p. 19
4.9.1 Description p. 19
4.9.2 Pre-conditions p. 19
4.9.3 Service flows p. 20
4.9.4 Post-conditions p. 20
4.9.5 Other service flows p. 20
4.9.5.1 Time- and date-based trigger p. 20
4.9.5.2 Location-based trigger p. 21
4.9.5.3 Delay rather than prohibit data connection requests for Unattended Data Traffic p. 21
4.9.6 Potential Requirements p. 21
4.10 Use case 9 - Voice and video media quality modification p. 21
4.10.1 Description p. 21
4.10.2 Pre-conditions p. 22
4.10.3 Service flows p. 22
4.10.4 Post-conditions p. 23
4.10.5 Other service flows p. 23
4.10.5.1 Time- and date-based renegotiation of codec/media p. 23
4.10.5.2 Location-based renegotiation of codec/media p. 23
4.10.6 Potential Requirements p. 23
4.11 Use case 10 - Charging policy based on RAN congestion status p. 24
4.11.1 Description p. 24
4.11.2 Pre-conditions p. 24
4.11.3 Service flows p. 24
4.11.4 Post-conditions p. 24
4.11.5 Potential requirements p. 24
4.12 Use case 11 - Multiple applications traffic control over one bearer p. 25
4.12.1 Description p. 25
4.12.2 Pre-conditions p. 25
4.12.3 Service flows p. 25
4.12.4 Post-conditions p. 25
4.12.5 Potential requirements p. 25
4.13 Use case 12 - Application Data Priority Control p. 25
4.13.1 Description p. 25
4.13.2 Pre-conditions p. 25
4.13.3 Service flows p. 26
4.13.4 Post-conditions p. 26
4.13.5 Potential requirements p. 26
4.14 Use case 13 - Protocol Optimization p. 26
4.14.1 Description p. 26
4.14.2 Pre-conditions p. 26
4.14.3 Service flows p. 27
4.14.4 Post-conditions p. 27
4.14.5 Potential requirements p. 27
