面向5G的C-RAN规划研究

C-RAN planning research for 5G

随着网络用户及MBB业务快速增长促进站点加密,超密组网现状导致干扰日益严重,频谱资源共享困难,交互时延大。文章通过研究C-RAN规划,进行C-RAN试点部署,实验表明C-RAN可以提升站间协同,提升网络性能和用户体验。此外,站址的加密建设,面临站址获取难、传输消耗大、成本高三大难题。部署C-RAN可减少机房,降低CAPEX(资本性支出)70%,同时节约运维成本15%~35%。

With the rapid growth of network users and MBB services, site encryption is promoted. The current situation of ultradense networking leads to increasingly serious interference, difficulty in spectrum resource sharing and large interaction delay.This paper studies the C-RAN planning and carries out the C-RAN pilot deployment. The experiment shows that C-RAN can improve the inter-station collaboration, network performance and user experience. In addition, the construction of site encryption is confronted with three difficult problems: difficult access to site, high transmission consumption and high cost. Deployment of C-RAN can reduce the computer room, CAPEX(capital expenditure) by 70%, while saving operation and maintenance costs by15%-35%.