Content for TR 26.957 Word version: 17.0.0
2 References
3 Abbreviations
4 Overview of MPEG Server And Network Assisted DASH (SAND) in ISO/IEC 23009-5
5 Architectural considerations for SAND
6 SAND use cases and relevance to 3GPP environment
7 MOOD for handling TLS protected unicast traffic
8 Streaming enhancements from QoE-Aware resource allocation
9 Cross-Origin Resource Sharing (CORS)
10 Connections to RAN Study on Context-Aware service delivery
11 Conclusions and Recommendations
$ Change history
2 References p. 6
3 Abbreviations p. 7
4 Overview of MPEG Server And Network Assisted DASH (SAND) in ISO/IEC 23009-5 p. 7
5 Architectural considerations for SAND p. 12
5.1 SAND in PSS architecture p. 12
5.2 SAND architecture for OTT streaming services p. 12
5.3 Alternative SAND architecture for OTT streaming services p. 14
5.4 SAND architecture for generic OTT streaming services p. 15
6 SAND use cases and relevance to 3GPP environment p. 16
6.1 Use Case # 1: Content-Provider Optimized Zero-Rating p. 16
6.1.1 Use case description p. 16
6.1.2 Recommended requirements and working assumptions p. 17
6.1.3 Gap analysis w.r.t. existing 3GPP technologies p. 17
6.1.4 Potential solutions including relevant SAND functionality p. 17
6.2 Use Case # 2: Consistent QoE/QoS for DASH Users p. 17
6.2.1 Use case description p. 17
6.2.2 Recommended requirements and working assumptions p. 18
6.2.3 Gap analysis w.r.t. existing 3GPP technologies p. 18
6.2.4 Potential solutions including relevant SAND functionality p. 18
6.3 Use Case # 3 Proxy Caching p. 20
6.3.1 Use case description p. 20
6.3.2 Recommended requirements and working assumptions p. 20
6.3.3 Gap analysis w.r.t. existing 3GPP technologies p. 20
6.3.3.1 Partial representation caching p. 20
6.3.3.2 Next segment caching p. 20
6.3.3.3 Multi-CDN offering p. 21
6.3.4 Potential solutions including relevant SAND functionality p. 21
6.4 Use Case # 4 Network Assistance for DASH p. 23
6.4.1 Use case description p. 23
6.4.1.0 Introduction p. 23
6.4.1.1 Network Assistance p. 23
6.4.1.2 Relationship between Network Assistance and media server communication p. 24
6.4.1.3 UE considerations p. 25
6.4.2 Recommended requirements and working assumptions p. 25
6.4.3 Gap analysis w.r.t. existing 3GPP technologies p. 25
6.4.4 Potential solutions including relevant SAND functionality p. 26
6.4.5 Simulation and test results p. 28
7 MOOD for handling TLS protected unicast traffic p. 31
7.1 Description of the Release 12 solution for MOOD p. 31
7.2 Overview of a SAND WebSocket solution for MOOD p. 32
7.2.1 Architecture p. 32
7.2.2 Procedures p. 33
8 Streaming enhancements from QoE-Aware resource allocation p. 35
8.1 Introduction p. 35
8.2 Simulation methodology and setup p. 35
8.3 Video-Aware QoS optimizations at the Core p. 38
8.4 Video QoE-Aware scheduling at the RAN p. 41
8.5 Relationship to SAND p. 44
8.6 Performance evaluation results p. 44
9 Cross-Origin Resource Sharing (CORS) p. 49
9.1 Introduction p. 49
9.2 CORS Considerations for SAND p. 49
10 Connections to RAN Study on Context-Aware service delivery p. 50
11 Conclusions and Recommendations p. 50
$ Change history p. 52
