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Content for TR 22.864 Word version: 15.0.0

1… 5…

5.1 System flexibility 5.2 Scalability 5.3 Mobility support 5.4 Efficient content delivery 5.5 Self-backhauling 5.6 Access 5.7 Migration and interworking 5.8 Security

5 Use case families p. 8

5.1 System flexibility p. 8

5.1.1 Description p. 8

5.1.2 Potential Requirements p. 10

5.1.2.1 Network Slicing p. 10

5.1.2.2 Efficient User Plane p. 11

5.1.2.3 Network Capability Exposure p. 12

5.1.2.4 Flexible Broadcast Service p. 12

5.1.2.5 Multi-network Connectivity and Service Delivery across Operators p. 12

5.1.2.6 Markets requiring minimal service levels p. 13

5.1.2.7 Priority, QoS and Policy Control p. 13

5.1.2.8 3rd party services p. 14

5.2 Scalability p. 14

5.2.1 Description p. 14

5.2.2 Potential Requirements p. 14

5.3 Mobility support p. 15

5.3.1 Description p. 15

5.3.2 Potential Requirements p. 15

5.4 Efficient content delivery p. 16

5.4.1 Description p. 16

5.4.2 Potential Requirements p. 16

5.5 Self-backhauling p. 17

5.5.1 Description p. 17

5.5.2 Potential Requirements p. 17

5.6 Access p. 18

5.6.1 Description p. 18

5.6.2 Potential Requirements p. 19

5.7 Migration and interworking p. 21

5.7.1 Description p. 21

5.7.2 Potential Requirements p. 21

5.7.2.1 Interworking between 5G systems p. 21

5.7.2.2 Interworking between 5G and 4G p. 21

5.7.2.3 Migration aspects p. 21

5.8 Security p. 22

5.8.1 Description p. 22

5.8.1.1 Device Theft Prevention p. 22

5.8.1.2 Protection of user identity and location information p. 22

5.8.1.3 Efficient security mechanisms for small bursts of data p. 22

5.8.1.4 Security for temporary service in emergency case p. 22

5.8.1.5 Legal and regulatory obligations p. 22

5.8.2 Potential Requirements p. 23

6 Considerations p. 23

6.1 Considerations on charging p. 23

6.1.1 Charging considerations from TR 22.861 [3] p. 23

6.1.2 Charging considerations from TR 22.864 p. 24

6.2 Considerations on security p. 24

6.2.1 Security considerations from TR 22.861 [3] p. 24

6.2.1.1 General p. 24

6.2.1.2 Group based security p. 25

6.2.2 Security considerations from TR 22.862 [4] p. 25

6.2.3 Security considerations from TR 22.863 [5] p. 25

6.2.4 Security considerations from TR 22.864 p. 25

6.3 Considerations on cross TR dependencies p. 26

7 Consolidation of Potential Requirements p. 27

7.1 Network Slicing p. 27

7.2 Efficient User Plane p. 27

7.3 Network Capability Exposure p. 28

7.4 Flexible Broadcast Service p. 28

7.5 Multi-network Connectivity and Service Delivery across Operators p. 29

7.6 Markets requiring minimal service levels p. 29

7.7 Priority, QoS and Policy Control p. 30

7.8 System elasticity p. 30

7.9 System information collection p. 30

7.10 Mobility support p. 30

7.11 Efficient content delivery p. 31

7.12 Self backhaul p. 31

7.13 Support for multiple access technologies p. 32

7.13.1 LTE access support p. 32

7.13.2 3GPP/non-3GPP access integration p. 32

7.13.3 Satellite access p. 33

7.13.4 Residential access p. 33

7.13.5 Access from less trusted networks p. 33

7.13.6 Energy Efficiency p. 33

7.13.7 Performance p. 33

7.14 Migration and interworking p. 33

7.14.1 Interworking between 5G systems p. 33

7.14.2 Interworking between 5G and 4G p. 34

7.14.3 Migration aspects p. 34

8 Conclusion and Recommendations p. 34

$ Change history p. 35