Demand analysis and evaluation of 5g TOC audio and video experience in 2022 From China Academy of Communications
The following is the Demand analysis and evaluation of 5g TOC audio and video experience in 2022 From China Academy of Communications recommended by recordtrend.com. And this article belongs to the classification: 5g industry, research report.
Audio and video service experience is an important criterion for the current high-quality mobile network. Differentiated service characteristics correspond to differentiated service experience indicators and network requirements. The report shows the development trend of audio and video applications in the mobile Internet in recent years, changes in business forms, and the impact of these changes on the user experience, focuses on the experience differences and evaluation methods of various audio and video applications in the 4/5g network, analyzes the key indicators and experience baselines that affect the user experience in various typical applications, and the joint research results of the three parties, The rationalization of network evaluation methods based on audio and video applications is proposed.
With the wireless communication technology starting from 2G, going through 3g/4g, and continuing to evolve to 5g, the main audio and video business forms have also developed from voice calls, video on demand / live broadcast to more interactive and richer forms (such as RTC real-time audio and video, cloud games, free perspective video, VR video, etc.).
On the one hand, with the development of on-demand video towards high definition and interactivity, the impact of more features such as HDR / HFR, x-speed playback and drag needs to be included in the on-demand video experience evaluation KQI. On the other hand, compared with on-demand video and ordinary live video, three types of video deserve special attention because of their distinctive social / interactive characteristics or sensitivity to end-to-end delay:
1. Real time audio and video applications (such as continuous broadcast, video call, video conference, real-time chorus, etc.) put forward higher requirements for audio and video delay, audio-visual synchronization, etc.
2. Cloud rendering videos (such as strong interactive cloud games) put forward higher requirements for operation response delay, and games are more sensitive to Caton than on-demand videos.
3. Users can make their own “guide” free viewpoint video (FVV), which adds richer interactive dimensions such as rotating and switching viewing angles, zooming in to see details, and “bullet time”.
Due to the different emphasis on the experience dimensions of various audio and video services, there are also differences in the KQI for evaluating such audio and video services. All these development trends of audio and video applications (interactive, social, high-definition, high frame rate and spatial) call for the corresponding evolution of application experience evaluation methods, which will help to more scientifically evaluate the user experience differences of audio and video applications in mobile networks, Promote further optimization of mobile networks.
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