SK Telecom announced that it has successfully reduced latency between the handset and base station to 2ms over its LTE network from a standard 25ms.
SK Telecom which has partnered with Nokia, said the demo is a step closer to realizing 5G's ultra-low latency of 1ms. ITU states that technologies designed for 5G needs to deliver a peak data rate of up to 20Gbps under of 1ms.
According to SK Telecom, the standard 25ms latency between the handset and base station in the existing LTE environment is not low enough to seamlessly provide services that require real-time transmission of data such as autonomous driving and telemedicine, although it can support two-way communication services like remote learning and smart work.
Against this backdrop, the newly developed 2ms latency technology is expected to facilitate the development of diverse real-time services – e.g. autonomous driving, AR and VR services – which will become widespread in the 5G era, said the Operator.
SK Telecom and Nokia have dramatically reduced the latency between LTE handset and base station from 25ms to only 2ms by applying Uplink Pre-Scheduling, a technology that enables the handset to immediately transmit data to the base station, and short Transmission Time Interval (TTI), a technology that reduces data transmission time between base station and handset to about 1/7.
Park Jin-hyo, SVP and Head of Technology R&D Center of SK Telecom
Low latency technology is essential in realizing 5G services such as autonomous driving, artificial intelligence and virtual reality services. We will continue to improve our low latency technologies to achieve 5G evolution, while applying the latest technologies to our LTE networks to further enhance customer experience.
