基于软件无线电的 LTE-M 无线通信系统零现场测试

国内大多数地铁线路的综合承载应用 LTE-M(long term evolution for metro)，需要围绕 LTE-M 网络对其开 展传输特性、系统稳定性的实验测试及分析，由于设备成本和相关许可的限制，在真实的轨道沿线测试不仅耗时 而且成本很高。为克服这个缺点，有必要在实验室中开发仿真工具和测试程序，用于执行具有明确操作规范和满 足测试结果需求的测试架构。结合硬件和软件平台，在实验室内真实再现城市轨道交通基础设施端到端的业务和 场景，并给出 LTE-M 无线通信系统零现场测试方案和测试结果，有效证明零现场测试的可行性。

Zero On-Site Testing of LTE-M Wireless Communications System Based on Software-Defined Radio

LTE-M (Long-term evdution for metro) is used for the integrated bearing of urban rail transit in China. Conducting experimental tests and analyses on LTE-M is necessary in terms of transmission characteristics and system stability. Testing with real-world rail lines is time- consuming and costly owing to equipment costs and licensing restrictions. Developing a zero on-site testing strategy, comprising simulation tools and procedures for conducting open tests with clear operational rules and simple test result certification is important. This study combines hardware and software platforms to truly reproduce end-to-end services and scenarios of an urban rail transit infrastructure in the laboratory and presents a zero on-site testing scheme and test results of an LTE-M wireless communication system, effectively demonstrating the feasibility of zero on-site testing.