基于5G新场景下的传播模型校正与链路预算
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引用本文:许贤泽,方屹涛,郑成林.基于5G新场景下的传播模型校正与链路预算[J].南京邮电大学学报:自然科学版,2020,40(2):1~6
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作者单位
许贤泽 武汉大学 电子信息学院湖北武汉430072 
方屹涛 武汉大学 电子信息学院湖北武汉430072 
郑成林 武汉大学 电子信息学院湖北武汉430072 
基金项目::国家自然科学基金(51975422)和武汉市应用基础前沿专项(2018010401011284)资助项目
中文摘要:基于第五代移动通信的新场景,研究了新型无线传播模型的校正及链路预算问题。在3GPP 38.901协议中提出的针对5G频段的网络传播模型——UMa模型的基础上,根据武汉市密集信号区域提出了新的传播模型并进行校正与优化。通过对实测数据进行数据预处理,在Matlab中基于最小二乘法进行传播模型的校正。将校正前后的传播模型与实测数据进行仿真对比与误差分析,确定了可以代表市区热点区域的通用传播模型。并且对该地区进行了上下行链路预算,估算出了单个宏基站在满足通信需求下的最大覆盖半径,能够有效完善基站的网络覆盖与城市的站址规划设计,为5G新型网络规划提供了一定的理论基础与参考价值。
中文关键词:新场景  传播模型校正  最小二乘法  链路预算  网络规划
 
Propagation model correction and link budget based on 5G new scenario
Abstract:Based on the new scenario of the fifth generation mobile communication,the correction of the new wireless transmission model and the link budget problem are studied.Based on the UMa model,that is,a network propagation model for 5G frequency band proposed in 3GPP 38.901 protocol,a new propagation model based on dense signal area in WuHan,China is proposed,corrected and optimized.By preprocessing the measured data,the propagation model is corrected based on the least square method in Matlab.The simulation comparison and the error analysis are made between the propagation model before and after correction and the measured data and a general propagation model for representing hot spots in urban areas is determined.In addition,the budget of the upstream and downstream links in the area is carried out,and the maximum coverage radius of a single Acer station is estimated to meet the communication requirements,improving the network coverage of the base station and the urban site planning and design.It provides a certain theoretical basis and reference value for the planning of 5G new network.
keywords:new scene  propagation model correction  least square method  link budget  network planning
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