摘要
从Massive MIMO波束赋形原理、关键参数入手,讨论SSB、CSI-RS和业务波束特点及其对网络的影响,明确SSB波束是影响当前5G网络覆盖的关键因素。进而引入SSB波束权值计算公式和场景通用覆盖需求参数,即可计算得出SSB波束权值方向角、倾角、水平波束宽度、垂直波束宽度四元组参数的多种组合;最后选取4种典型波束权值参数分别应用到广覆盖、低层多密度建筑物及高层楼宇覆盖场景,通过各方案覆盖性能对比分析,得出了各场景覆盖提升的权值参数经验,为后续5G广播波束优化提供参考。
Starting from the principle and key parameters of beam shaping in Massive MIMO,it discusses the characteristics of SSB,CSI-RS and service beam and their influence on the wireless network,which clears that SSB beam is the key factor affecting the current 5G network coverage.Then it introduces the formula of SSB beam weight and the general coverage demand parameters of the scene to calculate the multiple combinations of the four parameters of SSB beam weight:direction angle,angle,horizontal beam width and vertical beam width.Finally,four typical beam weight parameters is selected to apply to wide coverage,low-rise multi-density buildings and high-rise buildings respectively.Through the comparative analysis of the coverage performance of each scheme,the weight parameter experience of each scene coverage improvement is obtained,which provides a reference for the following 5G broadcast beam optimization.
作者
梁松柏
李新卫
徐军平
Liang Songbai;Li Xinwei;Xu Junping(China Unicom Henan Branch,Zhengzhou 450008,China)
出处
《邮电设计技术》
2020年第8期27-33,共7页
Designing Techniques of Posts and Telecommunications
作者简介
梁松柏,毕业于北京大学,高级工程师,硕士,主要从事无线网络优化工作;李新卫,毕业于北京邮电大学,工程师,硕士,主要从事无线网络优化工作;徐军平,毕业于武汉大学,工程师,硕士,主要从事工程项目管理工作。
