Tech-invite 3GPPspace IETFspace

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Content for TR 26.949 Word version: 18.0.0

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2 References p. 6

3 Definitions and abbreviations p. 8

3.1 Definitions p. 8

3.2 Abbreviations p. 8

4 Background and Context p. 8

4.1 Introduction p. 8

4.2 Scenarios and Deployment Cases p. 10

4.2.1 Scenario p. 10

4.2.2 Media-Format Related Challenges p. 10

4.2.3 Content Adaptation and Provisioning Functions p. 12

5 Traditional Distribution Formats p. 12

5.1 Overview p. 12

5.2 Methodology p. 12

5.3 Collected Information p. 13

5.3.1 DVB p. 13

5.3.1.1 Introduction p. 13

5.3.1.2 Video codec profiles and levels p. 14

5.3.1.3 Defined parameters for video profiles p. 14

5.3.1.4 Video coding parameters for broadcast distribution p. 15

5.3.1.5 Audio related Parameters p. 16

5.3.1.6 Parameters for special services (supplementary streams, DASH sub-resolutions, etc.) p. 18

5.3.1.7 Any implementation guidelines p. 18

5.3.1.8 Deducted Information on Random Access Points p. 18

5.3.1.9 Updated Information for UHD-1 phase 2 p. 18

5.3.2 ATSC p. 20

5.3.2.1 Introduction p. 20

5.3.2.2 Colorimetry aspects p. 20

5.2.2.3 Frame rate aspects p. 20

5.2.2.4 RAP period in ATSC p. 20

5.3.3 DECE p. 20

5.3.3.1 Introduction p. 20

5.3.3.2 Colorimetry aspects p. 20

5.3.3.3 Frame rate aspects p. 21

5.3.3.4 RAP period in DECE p. 21

5.3.4 Response from DASH-IF p. 21

5.4 Summary p. 22

5.4.1 Overview p. 22

5.4.2 Spatial Resolution p. 22

5.4.3 Frame Rates p. 23

5.4.4 Colorimetry Formats p. 23

5.4.5 Random Access p. 24

5.4.6 Video Codecs and Other Video Parameters p. 24

5.4.7 Non-Video Related Parameters p. 25

5.4.8 UHD-1 Phase 2 including HDR, HFR and NGA p. 25

6 Video Operation Point Parameters p. 25

6.1 Video resolution p. 25

6.1.1 Introduction p. 25

6.1.2 Working assumptions p. 26

6.1.3 Video profile resolution definition p. 26

6.1.4 Selection of video profile resolutions for operation points p. 28

6.2 Viewing Distance and Resolution p. 28

6.2.1 Introduction p. 28

6.2.2 Optimum Viewing Distance p. 29

6.2.3 Conclusions p. 30

7 Non-video related aspects p. 30

8 Enablers for different 3GPP services p. 31

8.1 Introduction p. 31

8.2 DASH Signalling Enablers p. 31

8.2.1 Relevant Signaling Parameters p. 31

8.2.2 DASH Signaling Background p. 31

8.2.2.1 Representations in one Adaptation Set p. 31

8.2.2.2 Receiver Processing Model p. 32

8.2.2.3 Signaling Framework and Options p. 32

8.2.2.4 Open Questions and Potential Answers p. 34

8.2.2.5 Gap Analysis on DASH-based signalling p. 36

9 Information from Example Deployments p. 36

9.1 Description of Linear / Live TV using MBMS p. 36

10 Conclusions and Recommendations p. 37

$ Change history p. 41