- KRRI Hosts Technical Council on Railway Communications with Railway Operators -

UIWANG, South Korea – August 28 – The Korea Railroad Research Institute (KRRI) (President: Sagong Myung) held the 4th Technical Council on Railway Communications with Railway Operators on August 27 at 2:00 p.m. at Seoul Station Grand Central.

The meeting brought together more than 30 experts in railway communication establishment and operations to share key issues in the field and explore practical solutions.

The Technical Council on Railway Communications was launched in 2022 under KRRI’s initiative, with nine participating organizations: Airport Railroad Co., Gwangju Metropolitan Rapid Transit Corporation, Daegu Metropolitan Transit Corporation, Daejeon Metropolitan Rapid Transit Corporation, Busan Transportation Corporation, Seoul Metro, Incheon Transit Corporation, and Korea Railroad Corporation (in alphabetical order).

The Council aims to share knowledge on building, operating, and maintaining railway communications infrastructure, establish and revise technical standards, and jointly conduct R&D on railway communication technologies.

At this meeting, KRRI presented the progress of establishing an e-Um 5G* (private 5G network) at the Osong Test Line and proposed an operation plan for railway-specific 5G. It also introduced next-generation communication technologies using the 6G upper-mid frequency band (7–24 GHz)**, which supports ultra-high-speed, low-latency communication with wide bandwidth and stable propagation characteristics.
* e-Um 5G provides wide bandwidth (100 MHz) and high data speeds (over 100 Mbps), enabling real-time, high-capacity communication between trains and infrastructure.
** The upper-mid frequency band (7–24 GHz) is a key candidate for 6G. It combines wide bandwidth with stable propagation characteristics, enabling ultra-high-speed, low-latency communications. In particular, this band supports multi-gigabit transmission rates while offering longer propagation distances than existing mid-band frequencies, ensuring reliable connectivity even in mobile environments.
Airport Railroad Co. shared updates on its deployment of e-Um 5G and R&D progress on a wireless train operation information transmission device utilizing the technology.

KRRI and participating organizations also shared issues related to railway communications and held in-depth discussions on ways to identify demand for the application of e-Um 5G in order to further advance and promote railway communication technologies.

The National Research Council of Science & Technology (NST, Chairman: Kim Young-sik), which oversees and supports government-funded research institutes in the science and technology sector, is also promoting open collaboration systems to foster cooperation and innovation across diverse research stakeholders.

Kim Jung-tae, Director of Train Control and Communications Research Department at KRRI and secretary of the Council, said “Railway communication is a core technology that enables safe and efficient railway operations. We will expand communication opportunities with operators to apply advanced technologies such as Eum 5G and, in the future, 6G to railway sites.”

President Sagong Myung of KRRI said, “The Railway Communications Technical Council is an open cooperation network that reflects field needs in the communications sector. Through collaboration with railway operators, KRRI will ensure that field demands are reflected throughout the entire R&D cycle—from planning to commercialization.”





Press Contacts

Sunghyun Baek, Ph.D.
Korea Railroad Research Institute
baeksh@krri.re.kr
+82 31 460 5162