Top challenges of LTE to become the next generation railway communication system
Top challenges of LTE to become the next generation railway communication system
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DOI：
10.2495/cr120081
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
J. Calle-Sánchez;M. Molina-Garcia;J. Alonso
中科院分区：
文献类型：
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作者：
J. Calle-Sánchez;M. Molina-Garcia;J. Alonso
铁路环境离不开当前公共通信系统的发展。长期演进（LTE）移动的通信系统被认为是当前全球移动的通信铁路系统（GSM-R）的自然演进。LTE全IP组网技术对于铁路运营专用和旅客商用宽带异构网络和业务的融合和融合起着关键作用。采用新一代铁路通信标准必须基于对新系统成为铁路移动的通信系统的详尽可行性研究。在本文中，LTE的首要挑战，以解决铁路通信服务的具体要求和功能进行了评估。在此范围内，评估了实现所需铁路功能的LTE特性、LTE技术挑战、频谱协调、网络部署考虑因素以及满足铁路服务可靠性、可用性、可维护性和安全性（RAMS）要求的LTE能力。
Railway environments cannot be away from the current evolution of public communication systems. The Long Term Evolution (LTE) mobile communication system is considered to be the natural evolution for current Global System for Mobile Communications Railways (GSM-R). LTE all IP networking technology plays a key role for the integration and convergence of heterogeneous networks and services, both the specific for the railway operative and the commercial broadband ones for passengers. The adoption of a new generation standard for railway communication must be based on an exhaustive feasibility study of the new system to become the railway mobile communication system. In this paper, LTE’s top challenges to address the specific requirements and features of railway communication services are evaluated. Under this scope, LTE features to implement the required railway functionalities, LTE technical challenges, spectrum harmonization, network deployment considerations and LTE capabilities to meet the railway service Reliability, Availability, Maintainability and Safety (RAMS) requirements, are assessed.