Analysis and Field Trial Results on C-Plane and U-Plane Split Scheme in Virtual Sectorization System  

作　　者：XIE Weiliang WU Zhouyun YANG Fengyi YANG Tao 

机构地区：[1]Technology Innovation Center,China Telecom Corporation Limited

出　　处：《China Communications》2015年第11期53-61,共9页中国通信（英文版）

基　　金：supported by the National Science and Technology Major Project of China (No. 2013ZX03001018)

摘　　要：Capacity enhancement approaches are being intensively studied in the past few years to address the soaring capacity demands. The network densif ication technology is recognized as one promising solution. However,the ultra-dense network scheme suffers from severe interference and frequent handovers,which degrade the system performance significantly. In this paper,a virtual sectorization system leveraging a C-plane(control signaling plane) and U-plane(user data plane) split scheme is proposed to overcome these two fundamental problems. Besides,a well-designed fi eld trial is conducted to evaluate its performance. The results show that the interference can be avoided,which leads to a tremendous increase in system capacity. In addition,the number of handovers is also greatly decreased. Thus,the trial results verify the huge potential of the C-plane and U-plane split scheme for system capacity and user experience enhancements.Capacity enhancement approaches are being intensively studied in the past few years to address the soaring capacity demands. The network densif ication technology is recognized as one promising solution. However,the ultra-dense network scheme suffers from severe interference and frequent handovers,which degrade the system performance significantly. In this paper,a virtual sectorization system leveraging a C-plane(control signaling plane) and U-plane(user data plane) split scheme is proposed to overcome these two fundamental problems. Besides,a well-designed fi eld trial is conducted to evaluate its performance. The results show that the interference can be avoided,which leads to a tremendous increase in system capacity. In addition,the number of handovers is also greatly decreased. Thus,the trial results verify the huge potential of the C-plane and U-plane split scheme for system capacity and user experience enhancements.

关 键 词：C-plane/U-plane SPLIT VIRTUAL sectorization HANDOVER interference 

分 类 号：TN929.5[电子电信—通信与信息系统] TP393.01[电子电信—信息与通信工程]