基于C-RAN架构的5G超密集组网技术研究  

Research on 5G Ultra-dense Network based on C-RAN Architecture

作　　者：陈林 杨波 刘重军 CHEN Lin;YANG Bo;LIU Chongjun(Comba Network Systems Co.,Ltd.,Guangzhou Guangdong 510663,China)

机构地区：[1]京信网络系统股份有限公司,广东广州510663

出　　处：《通信技术》2021年第6期1400-1405,共6页Communications Technology

摘　　要：通过分析5G室内组网的需求特性,结合5G Multi-TRP标准的最新进展,设计了基于C-RAN架构的5G室内超密集组网解决方案。系统分析基于C-RAN架构下业务的接入过程、激活Multi-TRP组的选择、控制信道和业务信道的设计、参考信号的设计等关键技术,设计分布式MU-MIMO方案,包括MU-MIMO流程、参考信号设计和配对用户选择过程。此外,从移动性和小区边缘干扰两方面出发,定性分析基于C-RAN的超密组网架构。最后,通过分析仿真和实验测试结果,验证了所提方案的可行性。This paper analyzes the requirements of 5G indoor cases.Combined with the latest development of 3GPP Multi-TRP standards,a 5G indoor ultra-dense network solution based on C-RAN architecture is designed.The key technologies such as the access process of services under the C-RAN architecture,the selection of activated Multi-TRP groups,the design of control channels and service channels,and the design of reference signals are systematically analyzed;distributed MU-MIMO scheme,including MU-MIMO process,reference signal design and paired user selection process is designed.In addition,starting from both mobility and cell edge interference,this paper qualitatively analyzes the ultra-dense networking architecture based on C-RAN.Finally,through analysis of simulation and experimental test results,the feasibility of the proposed scheme is verified.

关 键 词：C-RAN Multi-TRP MU-MIMO Ultra-dense Network 控制信道 业务信道 参考信号 

分 类 号：TN911.6[电子电信—通信与信息系统]