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地铁站及地铁运行的隧道区间具有无线信号传播特征明显、用户集中且数据业务需求大的特点,是LTE网络需要重点覆盖的区域。通过分析地铁站及地铁车辆运行隧道区间的无线传播环境、覆盖特点,以宁波市轨道交通一号线1期工程民用通信系统为例,提出了基于LTE MIMO 2×2技术的具体覆盖解决方案。
Subway stations and subway tunnels running with the characteristics of a clear wireless signal propagation, user concentration and data services needs large features, is the LTE network needs to focus on the area. By analyzing the wireless propagation environment and coverage characteristics of subway tunnels and subway tunnels, taking the civil communication system of Phase I of Ningbo Metro Line 1 as an example, a specific coverage solution based on LTE MIMO 2 × 2 technology is proposed.