Base Station Configuration Based On Millimeter Wave Transmission Characteristics In Subway Scene

With the development of the fifth-generation mobile communication technology becoming stable,the introduction of 5G technology into new application scenarios has become the mainstream direction of research.At the same time,with the rapid construction of urban rail transit,the subway has become one of the most popular vehicles for daily use.First,in order to cope with the growth of mobile wireless communication services in the subway scene and improve the user experience of passenger users using mobile phones in the compartment for communication,this article considers introducing 5G technology into the subway scene to achieve the above-mentioned communication service requirements.The key to the new application of 5G technology is to study the transmission characteristics of millimeter wave in this scenario.In order to ensure the full coverage of the base station signal during the configuration of the base station,the total path loss during millimeter wave transmission needs to be calculated.The algorithm solves the problem.In addition,the subway tunnel scene is a highly reflective communication environment,and the multipath effect is particularly obvious.In order to avoid signal misjudgment caused by multipath delay and affect the transmission quality of communication,accurate average delay between multipaths is required,that is,the average propagation delay difference between reflected waves and direct waves.Then,analyze the millimeter wave transmission characteristics parameters obtained by the above algorithm in the subway scene,and at the same time,according to the passenger user's mobile phone product performance parameters and the communication parameter indicators in the 5G technology protocol,get the 5G communication related constraint parameters in the subway tunnel scene Finally,based on these constraints,the configuration design of the base station is completed,and some preliminary theoretical research is made for the future integration of 5Gtechnology into the new field of metro civil communications.