Research on Multi-frequency Network Optimization Strategy for LTE-R System in High-Speed Railway Scenario

DOI: https://doi.org/10.62517/jes.202302212

Author(s)

Li Ling1, Wang Shuangyou1, Zhao Hongwei2, Hou Jiayi3

Affiliation(s)

1School of Software, Handan College, Handan 056000, China; 2China Mobile Communications Group Hebei Co., Ltd. Handan Branch, Handan 056000, China; 3Department of Intelligent Manufacturing, Jinan Technician College, Handan 056000, China

Abstract

LTE-Railway (LTE-R) is a 4th-generation wireless communication technology that provides voice, data, and video services through LTE, optimized for the railway environment. The number of LTE-R users continues to rise, and traditional single F network coverage cannot meet the requirement of users. Moreover, the speed perception of high-speed rail users becomes worse. The optimization of LTE private network of high-speed rail is proposed through F+D dual-band network, layering between VOLTE and data service, public network user moving out, high-speed railway user migration back, downlink Doppler shift optimization, FDD blending networking and other aspects jointly. This method is meaningful for meeting the service growth of future high-speed railway user group and enhances the LTE network rate perception of high-speed railway users.

Keywords

LTE-R, High-Speed Railway; Multi-Band Network; FDD; Optimization

References

[1] FAN Xue-bao, HE Chun-xia. Research on LTE network coverage of high-speed railway[J]. Mobile communications, 2016,40(01),84-90. [2] ZHAO Hongwei, LIU Haichao, High-speed railway TD-LTE private network optimization based on dual-band networking and improved PF algorithm of CA[J]. Journal of China railway society, 2017,39(12),58-66. [3] LI Dong, Comparison and research on the adaptability of different standard LTE technology under high-speed railway scenario[J], Journal of Railway Engineering Society, 2016, 33(07), 64-70. [4] DUAN Baofeng, LI Cuiran, et al. Wireless network optimization based on TDD/FDD integration mode in high-speed railway[J], Journal of Railway Science and Engineering, 2020, 17(05), 1097-1104 DOI: 10.19713/j.cnki.43-1423/u.T20190745. [5] YAN L, FANG X, LI Y, et al. Overview on Intelligent Wireless Resource Management of Millimeter Wave Communications under High-speed Railway[J]. Journal of Electronics & Information Technology, 2023, 45(8): 2806-2817. [6] Ai B, Cheng X, Kürner T, et al. Challenges toward wireless communications for high-speed railway[J]. IEEE transactions on intelligent transportation systems, 2014, 15(5): 2143-2158. [7] Zayas A D, Perez C A G, Gomez P M. Third-generation partnership project standards: For delivery of critical communications for railways[J]. IEEE Vehicular Technology Magazine, 2014, 9(2): 58-68. [8] Zhou Y, Pan Z, Hu J, et al. Broadband wireless communications on high speed trains[C]//2011 20th Annual Wireless and Optical Communications Conference (WOCC). IEEE, 2011: 1-6. [9] Xu S, Zhu G, Ai B, et al. A survey on high-speed railway communications: A radio resource management perspective[J]. Computer Communications, 2016, 86: 12-28. [10] H. Wu, Y. Gu, and Z. Zhong. Research on the fast algorithm for GSMR switching for high-speed railway. J. Railway Eng. Soc., no. 1, pp.92-96, Jan. 2009. [11] Zhou L, Luan F, Zhou S, et al. Geometry-based stochastic channel model for high-speed railway communications[J]. IEEE Transactions on Vehicular Technology, 2019, 68(5): 4353-4366. [12] ZHAO Hongwei, LIU Haichao, High-speed railway TD-LTE private network optimization based on dual-band networking and improved PF algorithm of CA[J], Journal of the China Railway Society, 2017, 39(12), 58-66. [13] DING Yuanfeng, Study on soft handover technology in high-speed train-wayside broadband communication system[J], Journal of the China Railway Society, 2020, 42(07), 87-94. [14] Huang Xiaoguang, Wang Wei, Xu Hui, Research on service aware 4G network capacity guarantee standard[J], Telecommunications technology, 2017(02),43-46. [15] HE Ruisi, AI Bo, WANG Gongpu, et al. High-speed railway communications: From GSM-R to LTE-R[J]. IEEE Vehicular Technology Magazine, 2016, 11(3): 49–58. doi: 10.1109/MVT.2016.2564446. [16] Xiong Zhoushi, Wang Qunyong, Cen Shuwei, Comparative test analysis of D-band and F-band of TD-LTE[J], Telecommunications technology, 2017(07),30-33. [17] Zhang Changqing, Analysis and proposal of TD-LTE cell handover technology[J], Mobile communication, 2013,37(02),45-52. [18] Ahmad I, Chen W, Chang K. LTE-railway user priority-based cooperative resource allocation schemes for coexisting public safety and railway networks[J]. IEEE Access, 2017, 5: 7985-8000. [19] Liu Hang, Research on frequency offset estimation in OFDM system of LTE[D], Beijing, Beijing University of Posts and Telecommunications, 2015. [20] Fan D, Zhong Z, Wang G, et al. Doppler shift estimation for high-speed railway wireless communication systems with large-scale linear antennas[C]//2015 International Workshop on High Mobility Wireless Communications (HMWC). IEEE, 2015: 96-100. [21] Fang Hui, Research on MIMO spatial multiplexing techniques in TD-LTE system, Nanjing, Nanjing University of Posts and Telecommunications, 2013. [22] Zhou Feng, Xu Zhengfeng, Luo Jun, Study and analysis of VOLTE service and its implementation[J], Telecommunication Science, 2013,29(2),31-35. [23] Jin Jingjing, Yang Xinghong, Solution to improve the successful rate of eSRVCC handover in VOLTE[J], Telecommunications Engineering Technology and Standardization, 2016,29(09),63-66. [24] Mahn-Suk Y, Sung-Hun L, Chang-Kyo L, et al. Performance test of LTE-R railway wireless communication at high-speed (350 km/h) environments[C]//2018 Tenth International Conference on Ubiquitous and Future Networks (ICUFN). IEEE, 2018: 637-640. [25] Chen Y, Niu K, Wang Z. Adaptive handover algorithm for LTE-R system in high-speed railway scenario[J]. IEEE Access, 2021, 9: 59540-59547.