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城市轨道交通车辆与地面通信的稳定性和准确性对运营安全至关重要。将LTE(长期演进)技术与WLAN(无线局域网)技术进行比较,分析LTE用于城市轨道交通车-地通信的技术优势。通过对郑州轨道交通1号线一期工程基于LTE技术的车-地无线通信网络系统方案进行分析,并对1号线的通信网络进行实测,验证了LTE技术的可行性。
The stability and accuracy of urban rail transit to ground communication are crucial to operational safety. The LTE (Long Term Evolution) technology is compared with WLAN (Wireless Local Area Network) technology to analyze the technical advantages of LTE for urban rail transit-to-ground communications. Through the analysis of the system scheme of car-to-ground wireless communication network based on LTE technology for the first-phase project of Zhengzhou Rail Transit Line 1, the communication network of Line 1 is measured and the feasibility of LTE technology is verified.