5G-LIVELY – 5G-Ultra Low Latency Live Video Delivery
The development of this low-latency video application and specially optimized 5G mobile network has made it possible for the first time for viewers at events to follow the action in real time and seamlessly switch perspectives on their smartphones without annoying delays, thus enjoying a more direct experience.
From recording to broadcasting live digital video to viewers’ devices, video signals undergo a series of processing and transmission steps. Each step delays the delivery of the live video further. In traditional broadcast-oriented video production, these delays typically add up to several tens of seconds in total. In contrast, when broadcasting live video directly at an event—for example, on video walls or on the second screens of event visitors’ smartphones—the goal is to achieve a delay that is no longer perceptible.
This project is developing an optimized chain from video recording to transmission to delivery on the end device. The focus is on optimizing video encoding and decoding for low latency in a specially parameterized 5G mobile communications environment that enables small buffers. A 5G mobile communications environment is being developed that guarantees a stable connection with low latency tailored to video delivery. Key factors in achieving this goal are features from 5G technologies, such as 5G ultra-reliable low-latency communications (5G-URLLC) and 5G guaranteed bit rate (5G-GBR). This processing chain is being developed and tested in a 5G laboratory environment, at real events, and in real pilot operations.
As an applied research and development company, Salzburg Research plays a central role in connecting 5G infrastructure providers, such as Salzburg AG, and application developers, such as Native Waves. This brings together knowledge from disparate industries. Salzburg Research focuses on integrating the requirements of the processing chain and the experimental setup, which includes 5G monitoring and measurement. The company’s development expertise in the measurement and monitoring of 5G networks and applications will be contributed through the implementation of a comprehensive monitoring system. The company will operate a 5G measurement system in its in-house network laboratory and make it available for research, development, and validation activities for the project.
