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Content for TR 26.941 Word version: 19.0.0

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5 Relevant scenarios and use cases p. 15

5.1 General p. 15

5.2 Types of network slicing p. 15

5.2.1 Scenario 1: Operator-managed network slicing p. 15

5.2.2 Scenario 2: Third-party-managed network slicing p. 16

5.3 Use cases p. 17

5.3.1 Multiple network slices for uplink and downlink streaming p. 17

5.3.2 Premium gaming slice p. 18

5.4 Collaboration scenarios for network slicing p. 19

5.4.1 Collaboration scenarios for network slicing based on 5G Media Streaming scenarios p. 19

5.4.1.0 Introduction |R19| p. 19

5.4.1.1 Media streaming with both AF and AS deployed in the trusted Data Network p. 19

5.4.1.2 Media streaming with both AF and AS deployed in an external Data Network (OTT) p. 19

5.4.1.3 Media streaming with AFs deployed in two separate trusted Data Networks sharing AS in an external Data Network p. 20

5.4.2 Collaboration scenarios for network slicing with multiple slices or Data Networks p. 20

5.4.2.0 Introduction |R19| p. 20

5.4.2.1 Media streaming with AS deployed in external Data Network and AS delivering content through two different network slices p. 20

5.4.2.2 Media streaming with AS deployed in multiple trusted Data Networks p. 21

5.4.3 Collaboration options based on network slicing scenarios p. 21

5.4.3.0 Introduction p. 21

5.4.3.1 Scenario #1: Slice serving a set of enterprise services/applications p. 22

5.4.3.2 Scenario #2: Slice serving a specific application of an enterprise p. 23

5.4.3.3 Scenario #3: Slice optimised for a specific service/application p. 23

5.4.3.4 Scenario #4: Slice serving a virtual operator p. 24

6 Key issues and candidate solutions p. 24

6.1 Key Issue #1: Service Provisioning p. 24

6.1.1 Description p. 24

6.1.1.1 Provisioning multiple Network Slices for media streaming p. 24

6.1.2 Candidate solutions p. 24

6.1.2.1 Candidate solution #1: Policy template provisioning for a plurality of Network Slices and/or DNNs p. 24

6.1.3 Conclusions p. 26

6.2 Key Issue #2: Realising dynamic policies using different slices p. 27

6.2.1 Description p. 27

6.2.1.1 Slice selection for M5 dynamic policy requests p. 27

6.2.2 Candidate solutions p. 27

6.2.2.1 Candidate solution #1 p. 27

6.2.3 Conclusions p. 27

6.3 Key Issue #3: Moving media flows to other Network Slices p. 27

6.3.1 Description p. 27

6.3.1.1 Migration of media streaming application flows between Network Slices p. 27

6.3.2 Candidate solutions p. 27

6.3.2.1 Candidate solution #1 p. 27

6.3.3 Conclusions p. 27

6.4 Key Issue #4: AF discovery for dynamic policy p. 28

6.4.1 Description p. 28

6.4.1.1 Discovery of 5GMS AF instance for dynamic policy p. 28

6.4.2 Candidate solutions p. 28

6.4.2.1 Candidate solution #1 p. 28

6.4.3 Conclusions p. 28

6.5 Key Issue #5: Interoperability considerations p. 28

6.5.1 Description p. 28

6.5.1.1 Communication between AF instances to support interoperability p. 28

6.5.2 Candidate solutions p. 28

6.5.2.1 Candidate solution #1 p. 28

6.5.3 Conclusions p. 28

6.6 Key Issue #6: Slice resource resolution p. 29

6.6.1 Description p. 29

6.6.1.1 Resolve slice-specific application instances p. 29

6.6.2 Candidate solutions p. 29

6.6.2.1 Candidate solution #1 p. 29

6.6.3 Conclusions p. 29

6.7 Key Issue #7: Bootstrapping application invocation on Network Slice p. 29

6.7.1 Description p. 29

6.7.1.1 Discover appropriate Network Slice for 5GMS procedures p. 29

6.7.2 Candidate solutions p. 29

6.7.2.1 Candidate solution #1: Network Slice selection based on Traffic Descriptor information in URSP rules p. 29

6.7.3 Conclusions p. 31

7 Potential requirements p. 31

8 Conclusions and recommendations p. 31

$ Change history p. 33