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TR 26.928 (SA4) ☆ (Rel-16 draft)
Extended Reality (XR) in 5G

3GPP‑Page   full‑ToC
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V0.4.0 (Wzip)  2019/04  60 p.
Rapporteur:  Dr. Stockhammer, Thomas
Extended reality (XR) refers to all real-and-virtual combined environments and human-machine interactions generated by computer technology and wearables. It includes representative forms such as augmented reality (AR), augmented virtuality (AV), mixed reality (MR), and virtual reality (VR) and the areas interpolated among them.
The present document collects information on eXtended Reality (XR) in the context of 5G radio and network services. The primary scope of this Technical Report is the documentation of the following aspects:
  • Introducing Extended Reality by providing definitions, core technology enablers, a summary of devices and form factors, as well ongoing related work in 3GPP and elsewhere.
  • Collecting and documenting core use cases in the context of Extended Reality
  • Identifying relevant client and network architectures, APIs and media processing functions that support XR use cases
  • Analysing and identifying the media formats (including audio and video), metadata, accessibility features, interfaces and delivery procedures between client and network required to offer such an experience
  • Collecting key performance indicators and Quality-of-Experience metrics for relevant XR services and the applied technology components.
  • Drawing conclusions on the potential needs for standardization in 3GPP.

full Table of Contents for  TR 26.928  Word version:   0.4.0

 

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1  Scope  Word-p. 6
2  References
3  Definitions, symbols and abbreviations  Word-p. 7
3.1  Definitions
3.2  Symbols
3.3  Abbreviations
4  Introduction to Extended Reality  Word-p. 8
4.1  XR Terms and Definitions
4.1.1  Different Types of Realities
4.1.2  Degrees of Freedom and Tracking  Word-p. 9
4.2  Baseline Technologies  Word-p. 10
4.2.1  Introduction  Word-p. 11
4.2.2  Content Representation of Immersive Content
4.2.3  Capturing Systens and Production
4.2.4  Software Platforms and Ecosystems
4.2.5  XR Compute Platforms
4.2.6  Compression Technologies
4.2.7  Delivery Technologies
4.3  Devices and Form Factors
4.4  Related Information in 3GPP
4.5  Related Standards Work outside 3GPP  Up
5  Core Use Cases for Extended Reality  Word-p. 12
5.1  Introduction
6  Architectures for Extended Reality
7  Media Processing Functions and Media Formats for Extended Reality
8  Quality-of-Experience and Quality-of-Service for Extended Reality
9  Gap Analysis, Recommended Objectives and Candidate solutions for Extended Reality Use Cases
10  Potential Normative Work for 3GPP
11  Conclusions  Word-p. 13
A  Collection of XR Use Cases  Word-p. 15
A.1  Introduction and Template  Up
A.2  Use Case 1: 3D Image Messaging  Word-p. 18
A.3  Use Case 2: AR Sharing  Word-p. 19
A.4  Use Case 3: Streaming of Immersive 6DoF  Word-p. 20
A.5  Use Case 4: Emotional Streaming  Word-p. 22
A.6  Use Case 5: Untethered Immersive Online Gaming  Word-p. 24
A.7  Use Case 6: Immersive Game Spectator Mode  Word-p. 27
A.8  Use Case 7: Real-time 3D Communication  Word-p. 28
A.9  Use Case 8: AR guided assistant at remote location (industrial services)  Word-p. 30
A.10  Use Case 9: Police Critical Mission with AR  Word-p. 31
A.11  Use Case 10: Online shopping from a catalogue - downloading  Word-p. 33
A.12  Use Case 11: Real-time communication with the shop assistant  Word-p. 34
A.13  Use Case 12: 360-degree conference meeting  Word-p. 35
A.14  Use Case 13: 3D shared experience  Word-p. 38
A.15  Use Case 14: 6DOF VR conferencing  Word-p. 41
A.16  Use Case 15: XR Meeting  Word-p. 44
A.17  Use Case 16: Convention / Poster Session  Word-p. 48
A.18  Use Case 17: AR animated avatar calls  Word-p. 52
A.19  Use Case 18: AR avatar multi-party calls  Word-p. 53
A.20  Use Case 19: Front-facing camera video multi-party calls  Word-p. 54
A.21  Use Case 20: AR Streaming with Localization Registry  Word-p. 55
X  Change history  Word-p. 59

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