At present, live streaming remains one of the hottest industries. However, the traditional single-perspective “hawking-style” live streaming format has led to aesthetic fatigue. The extreme contrast between seller shows and buyer shows has also reduced the effectiveness of traditional live streaming. Consumers are looking forward to the emergence of an all-round, multi-scenario, immersive, and what-you-see-is-what-you-get live streaming format. Facing the future development of the live streaming industry, this pilot project conducts radio and television-level 4K Full NDI and 1+N multi-perspective live streaming based on XGS-PON, and conducts a live streaming demonstration of Tianyi Cloud Computer and a VR live streaming experience. Compared with the currently more common 1080P RTMP (Real Time Messaging Protocol) deep compression, low bitrate, second-level latency, and lossy picture quality technology, 4K Full NDI technology has the advantages of shallow compression, 4K high picture quality, high fidelity, millisecond-level low latency, and others. Combined with the multi-picture function, it can better display product details and make the live streaming format more realistic and immersive. It is very suitable for scenarios with high requirements for remote real-time interaction and synchronization such as live reporting, on-site connections, and online competitions. But this technology also has extremely high requirements for bandwidth. A single-channel bitstream needs to reach 40M-150Mbps, and the total bandwidth of three multi-perspective channels needs to reach 100M-500Mbps. ZTE and Hangzhou Telecom, through the XGS-PON network, showed in the on-site pilot that compared with the traditional XG-PON network with obvious phenomena such as sluggish, 卡顿 and black screens in the carried picture, the XGS-PON carried live streaming picture is always clear and smooth, fully demonstrating the upstream bandwidth capability and advantages of XGS-PON. The large upstream bandwidth characteristics of XGS-PON match the business characteristics of the live streaming base, raising the upstream bandwidth of each live streaming room from the traditional 20M-30M to 100M-500M. On the one hand, it solves problems such as bandwidth congestion caused by concurrent live streaming or live streaming stack and picture quality degradation caused by the busy time of mixed access of other users’ traffic at the PON port. On the other hand, it further expands the live streaming upgrade requirements of high picture quality and multiple cameras. At the same time, the advantage of the large splitting ratio of XGS-PON will further improve the network cost performance, reduce TCO, and better meet the development demands of enterprise users.
DXLINK commercializes live streaming scenarios. By leveraging the leadership and bandwidth capabilities of the XGS-PON network, it stimulates and releases the productivity and innovation power of the live streaming industry, helps telecom users enhance business attractiveness and industry competitiveness, and achieve commercial success.