Tech-invite 3GPPspace IETFspace

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Content for TR 26.909 Word version: 18.0.0

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4 A/V Quality Monitoring Support for 3GPP PSS p. 6

4.1 WebTV Quality Monitoring p. 6

4.1.1 Use case p. 6

4.1.2 Potential Recommended requirements p. 7

4.2 ITU-T P.NATS Quality Assessment Model for HTTP Adaptive Streaming p. 9

4.3 Gap analysis of PSS QoE metrics for support of ITU-T P.NATS p. 12

4.3.1 Supported Mode p. 12

4.3.2 Supported Input parameter p. 12

4.3.3 Further Parameters for Supporting Video Quality Monitoring p. 16

4.3.3.1 Additional Input Parameters p. 16

4.3.3.2 Dependency of Video Quality Test Results on Visual Size p. 16

4.3.3.3 Relation between Video Quality MOS and QP Parameter p. 17

4.4 Calculation of A/V MOS estimation p. 18

4.4.0 General p. 18

4.4.1 Network Optimization p. 18

4.4.2 MOS Models p. 18

4.4.3 MOS Windowing p. 18

4.4.4 Conclusion p. 19

4.5 Options for applying higher P.NATS Modes p. 19

5 QoE metrics support for managed streaming service p. 21

5.1 Use case: Managed Streaming Service QoE Improvement p. 21

5.1.1 Introduction p. 21

5.1.2 Use case #1 p. 21

5.1.3 Use case #2 p. 22

5.2 Managed streaming service deployment model consideration p. 22

5.2.1 Introduction p. 22

5.2.2 Managed streaming service deployment model p. 23

5.3 Recommended requirements p. 24

5.4 GAP Analysis and Evaluation p. 24

5.4.1 Introduction p. 24

5.4.2 Analysis of Activation/Deactivation of QoE reporting p. 24

5.5 Assumptions p. 25

5.6 Solution p. 25

5.6.1 Possible Candidate Options p. 25

5.6.2 QoE metrics collection within a certain geographic area p. 27

5.6.3 QoE metrics collection of a streaming service of a specific 3rd party p. 27

5.7 QoE Handler API Considerations p. 27

5.8 Privacy issue on QoE metric collection p. 29

5.8.1 Analysis p. 29

5.8.2 Solutions p. 29

6 Conclusion p. 29

$ Change history p. 31