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TR 26.957SA4
Study on Server And Network-assisted
Dynamic Adaptive Streaming over HTTP (DASH) (SAND)
for 3GPP Multimedia Services

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for a better overview, the Table of Contents (ToC) is reproduced
V15.0.0 (PDF)  2018/06  54 p.
V14.1.0  2017/03  54 p.

Rapporteur:  Dr. Oyman, Ozgur

The present document evaluates the MPEG DASH SAND (ISO/IEC 23009-5) specification to:
  • Ensure that 3GPP and MPEG remain aligned on their respective DASH specifications.
  • Identify enhancements offered by MPEG DASH SAND (ISO/IEC 23009-5) in the 3GPP environment, and recommend necessary modifications to the 3GPP specifications including DASH to enable these enhancements.
In particular, the following elements of functionality may be of particular 3GPP relevance and are studied:
  • Streaming enhancements via intelligent caching, processing and delivery optimizations on the server and/or network side, based on feedback from clients on anticipated DASH Segments, accepted alternative DASH Representations and Adaptation Sets, and requested bandwidth.
  • Improved adaptation on the client side, based on network/server-side information such as cached Segments, alternative Segment availability, and network throughput/QoS.

full Table of Contents for  TR 26.957  Word version:   15.0.0

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1  ScopeWord-p. 6
2  References
3  AbbreviationsWord-p. 7
4  Overview of MPEG Server And Network Assisted DASH (SAND) in ISO/IEC 23009-5
5  Architectural considerations for SANDWord-p. 12
6  SAND use cases and relevance to 3GPP environmentWord-p. 16
6.1  Use Case # 1: Content-Provider Optimized Zero-RatingUp
6.2  Use Case # 2: Consistent QoE/QoS for DASH Users
6.3  Use Case # 3 Proxy CachingWord-p. 20
6.4  Use Case # 4 Network Assistance for DASHWord-p. 23
7  MOOD for handling TLS protected unicast trafficWord-p. 31
8  Streaming enhancements from QoE-Aware resource allocationWord-p. 35
9  Cross-Origin Resource Sharing (CORS)Word-p. 49
10  Connections to RAN Study on Context-Aware service deliveryWord-p. 50
11  Conclusions and Recommendations
A  Change historyWord-p. 52

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