5G NR基站部署规划研究

Research on Deployment Planning for 5G NR

随着5G RAN 3层架构的逐渐明确,原4G时代的BBU拆分为CU和DU,其中非实时的无线高层协议栈功能引入到CU,物理层功能和实时性需求的层2功能引入到DU,部分实时性更高的物理层功能并入RRU。5G NR基站的规划正是基于新的3层架构,通过从4G到5G RAN架构的演进、CU/DU/RRU多种部署组合方式、NR基站多种部署方式资源需求、场景应用等多方面分析,论述了5G NR基站部署需要关注的问题。

with the three-tier framework of 5G RAN is becoming clear,the original BBU is divided into CU and DU,the non-real-time wireless high-level protocol is introduced to CU,the physical layer function and the real-time function is introduced to DU,the physical layer function with the real-time requirements is incorporated to RRU.The plan of 5G NR is based on the new threetier framework,through the analysis of the RAN architecture evolution from 4G to 5G,the multiple combination mode of CU/DU/RRU and the resource requirements and the application scenarios for the multiple combination mode,it discusses the issues that need to be paid attention to in 5G NR base station deployment.