Ultra-clear video bandwidth requirements
The advantages of ultra-high-definition TV are very strong sense of presence and sense of reality. It has the most delicate and realistic restoration of realistic scenes, especially for highly demanding sports events. Ultra-high definition display can achieve a very real visual sense. High-definition TVs usually use large screens at a suitable viewing distance to show their great advantages. Watching 4K ultra-clear video requires a screen of 55 inches or more. If it is 8K ultra-clear video, it usually needs to be viewed on a screen larger than 82 inches.
The 4K Video Transmission Demand Research Report released by China Communications Standards Association stated that the transmission entry level 4K, carrier level 4K, ultimate 4K, 8K bandwidth requirements, the highest bandwidth 8K video requires 135Mbps bandwidth, the lowest bandwidth requirements The entry level 4K also requires 18Mbps to 24Mbps bandwidth.
In addition, the "4K Video Transmission Demand Research Report" also states that the overall requirements for 4K ultra-clear video for the end-to-end of the bearer network are: end-to-end bandwidth is greater than 50Mbps, round-trip delay (RTT) is less than 20ms, packet loss rate The PLR should be less than 10~5 (through the end cloud optimization to reduce the network requirements).
How does 5G network carry ultra clear video?
Some of the performance parameters to be achieved by the 5G network published by the International Telecommunication Union (ITU) are as follows: Downstream peak data rate is 20Gbps, uplink peak data rate is 10Gbps, downlink peak spectrum efficiency is 30Gbps, uplink peak spectrum efficiency is 15Gbps, downlink user experience data The rate is 100Mbps, and the uplink user experience data rate is 50Mbps. The ITU report also shows that the network delay of the 5G network will be greatly reduced, the maximum is no more than 4ms, the minimum is only 1ms, far less than 20ms of the 4G network.
According to the 3GPP standard specification TR 22.863, the 5G mobile network eMBB has a user experience rate of 1 Gbps and an upper behavior of 500 Mbps.
In summary, in theory, 5G network has good carrying capacity for 4K or even 8K ultra clear video.
Ultra clear video application scenario
Ultra clear video based on 5G network has various application scenarios.
The first is remote ultra-clear live broadcast, such as live broadcasts of large events, live broadcasts of large-scale events, live broadcasts of important events, etc.
——The live broadcast of large-scale events. In 2018, the 23rd Winter Olympics was held in Pyeongchang, South Korea. The major broadcasters used the latest 8K and VR technology to present the beautiful snow scene, and record the fierceness of the athletes. Competition. A large number of games use HD VR live, including alpine skiing, curling, figure skating, ice hockey, short track speed skating, high platform skiing, bobsleigh, snowboarding and opening and closing ceremonies, immersive and interactive 360 ° screen, beautiful to breathtaking. The use of 5G network transmission of various outdoor ultra-clear sports events will give the audience an immersive on-site participation.
——Large live performance. On December 30th, 2016, Faye Wong’s “Fantasy Music” concert was held in Shanghai. Digital Kingdom, Tencent Video and Micro Whale VR teamed up to create VR live broadcast, providing immersive fans According to statistics, the micro-whale 4K VR video has more than 90,000 users to watch, the Tencent live broadcast platform has more than 20 million users to watch, and the VR live broadcast reservation users exceed 2 million. The 5G network transmits various large-scale performance activities. Qing video will successfully attract a large audience, successfully expanding the influence of the event and the number of audiences.