面向高速铁路安全的宽带移动通信网络理论与关键技术研究

The safe operataion of trains has been the key issues of international concern with the rising operation speed and the continuous expansion of the scale of the railway network. The mobile communication system is an important part of the high-speed railway ground infrastructure. This project focuses on the urgent problems that should be solved for sustainable development of the international high-speed railway dedicated mobile communication, including the research on radio wave propagation mechanism under high moving condition and confined space environment, the broadband, high efficiency and reliability data transmission mechanism under high moving condition, performance evaluation and optimization of wireless network source management mechanism. Our goal is to reveal radio wave propagation mechanism under high moving condition and confined space environment, creating multi-antenna models, wireless channel models and business service models for high-speed rail. We will creatively propose the multi-antenna measurement and data extraction method, interference management and mobility management optimization method, broadband physical-layer data transmission schemes with high efficiency and high safety. Broadband mobile communication network demo system and simulation platform for broadband wireless channel, antenna, relay and network performance evaluation will be constructed. This will have significant role in guaranteeing the train operation safety, promoting the development of public broadband mobile communication, trunking broadband mobile communication, high-speed rail broadband mobile communication and city rail traffic broadband mobile communication.

随着高速铁路运营速度的不断提升、路网规模的不断扩大，列车的运行安全已成为国际关注的重点问题。移动通信系统是高速铁路地面基础设施的重要组成部分，本项目针对当前国际高速铁路专用移动通信可持续发展亟需解决的高速移动与限定空间环境的无线电波传播机理，高速移动条件下宽带、高效、可靠数据传输机理，无线网络资源管理机制性能评估与优化三个科学问题开展研究。揭示高速移动与限定空间环境的无线电波传播机理，创建动车组车载多天线模型、无线信道模型、面向高速铁路无线网络需求的业务服务模型等；创新性提出多天线测量和数据萃取方法，干扰管理和移动性管理优化方法，高效、高安全性的宽带无线数据物理层信息传输方案；构建宽带移动通信网络演示系统，宽带无线信道、天线、中继、网络性能评估仿真平台。为确保列车运营安全，对推动公众宽带移动通信、集群宽带移动通信、高速铁路宽带移动通信、城市轨道交通宽带移动通信等的发展具有重大意义。