Trends of LTE based Railway Communication Systems

LTE 기반 철도통신 시스템 기술개발 동향

  • Received : 2016.03.15
  • Accepted : 2016.04.24
  • Published : 2016.04.28


Since the KTX starts operation in 2004, Korean railway system has sustained the highest safety and accuracy. In order to keep this achievement, the LTE based wireless communication system has been introduced for mobile communications and signal transmission. railway, and activities for its standardization are on the way. Railway communication system will be used as part of national safety net through interworking with safety network. This paper reviews the contents of standards and technologies in an LTE-based railway communication(LTE-R) system, and the items to be standardized to improve operational efficiency of the railway system by building a national railway radio communication system.

국내 철도시스템은 2004년 KTX가 도입된 이래 최고의 안전성과 정확성을 유지하고 있다. 이를 뒷받침하기 위하여 철도 무선통신 시스템에 LTE를 도입하게 되었고 이에 대한 표준화가 추진되고 있다. 철도통신시스템은 재난안전통신망과 연계를 통하여 국가안전망의 일부로 활용될 것이며 이들 시스템간의 연동방안은 중요한 기술적 과제이다. 본 논문에서는 철도시스템의 주요 특징을 분석하고 국내에서 추진중인 LTE 기반 철도통신시스템의 개발 현황을 살펴본다. 국내 철도무선통신 체계를 구축에 있어 철도시스템 운영 효율을 높이기 위하여 향후 표준화를 추진하여야 할 내용을 검토한다.



Supported by : 국토교통과학기술진흥원


  1. J. Choi, H. Cho, and H. Oh, "Standardization Trends of Requirements for LTE-based Railway Communication System," Telecommunications Technology Association, vol. 158, 2015, pp. 80-86.
  2. TTAK.KO-06.0407, LTE based railway communication System requirements, Telecommunications Technology Association, 2015, 12.
  3. TTAK.KO-06.0369, LTE based railway communication Functional requirements, TTA, 2014 12
  4. 3GPP TR 36.902, V9.3.1, 3GPP, Mar. 2011.
  5. 3GPP TS 36.300, V13.2.0, 3GPP, Dec. 2015.
  6. D. Han, S. Shin, H. Cho, J. Chung, D. Ok, and I. Hwang, "Measurement and Stochastic Modeling of Handover Delay and Interruption Time of Smartphone Real-Time Applications on LTE Networks," IEEE Communications Magazine, vol. 9, no. 7, March 2015, pp. 173-181.
  7. J. Choi, H. Cho, H. Oh, K. Kim, and H. Ryu, Challenges of LTE High-Speed Railway Network to Coexist with LTE Public Safety Network, 17th International Conference on Advanced Communication Technology, Jul., 2015, pp. 543-547.
  8. H. Cho, J. Choi, H. Oh, K. Kim, and H. Yun, "A Study on the Standardization of Radio Communication Networks for Conventional & High Speed Railways," Korea Information System of Criminal Justice Services Summer conference 2015, pp. 93-94.
  9. W. Cho, H. Choi, and H. Cho, "A Study on Integration Scheme of Wireless Communications in Railway Wireless Network," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 6, 2015, pp.659-664.