Browse > Article
http://dx.doi.org/10.6109/jkiice.2017.21.10.1833

LTE-R LinkBudget Analysis for channels interference in the case of sharing the Integrated Public Network Frequency  

Won, Hong-sun (Department of Electronic & Communication, Korea Railnetwork Authonity)
Kim, Seong-cheol (Department of Railload electrical system engineering, Woosong University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.10, 2017 , pp. 1833-1839 More about this Journal
Abstract
Korea Railway is enhancing the railway wireless communication system from VHF and TRS which have been used for 100 years to LTE-R starting with Ministry of Science and ICT's allocation of Integrated Public Network Frequency on December 2014. LTE-R has advantages on technology performance, also on ease of evolution based on standardization compared to existing technologies. However there are few problems that need to be solved to provide stable railway wireless services in the future. Due to national spectrum policy, LTE-R has frequency interference with Integrated Public Networks (PS-LTE, LTE-M ) and UHD-TV which was commercialized in 2017. This paper introduces performance changes caused by interferences which were founded from the test bed in Wonju~Gangneung LTE-R project and the result of RAN-Sharing. In addition, this paper suggests the standard for LTE-R cell planning in the case of sharing the Integrated Public Network Frequency by analyzing the changes of designed link-budget factor based on the test result.
Keywords
LTE-R; LinkBudget; Frequency Interference; Cell Planning;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. S. Song, "A Study on the Design and Evaluation of Control Wireless Network Based on Railway," Ph. D. dissertation, Yonsei University, Seoul, Republic of Korea, 2016.
2 J. Y. Choi, "A Study on the Optimization of LTE based Railroad Wireless Communication Net work in Korea," Ph. D. dissertation, Woo-Song University, Daejeon, Republic of Korea, 2014.
3 TTAK.KO-06.0437, LTE based Railway Communi cation System Requirements (Conventional and High Speed Railway), TTA, Seongnam, Republic of Korea, 2016.
4 TTAK.KO-06.0369, Functional Requirements for LTE based Railway Communication System, TTA, Seongnam, Republic of Korea, 2014.
5 TTAK.KO-06.0370, User Requirements for LTE based Railway Communication System, TTA, Seongnam, Republic of Korea, 2014.
6 3GPP TS 23.203, Policy and charging control architecture, 3GPP, Sophia Antipolis, France, 2017.
7 "Technical Development and Performance Test of Wireless Communication System for Railway (Performance Test Result at the Speeds of 250Km/h)," KORAIL: Daejeon, Republic of Korea, 2016.