TD-SCDMA集群系统中部分宏分集组网前向容量分析  

Capacity analysis of macrodiversity based on several base stations for TD-SCDMA trunking communication system

作　　者：唐宏[1] 刘杰珍[1] 王玮[1] 

机构地区：[1]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065

出　　处：《电信工程技术与标准化》2011年第12期66-69,共4页Telecom Engineering Technics and Standardization

基　　金：863课题2009AA011302;重庆市科委攻关项目2010AB2003;重庆市科委重点实验室专项经费资助;教育部春晖计划Z2007-1-63002

摘　　要：TD-SCDMA集群小区使用宏分集技术可以有效的克服大尺度衰落,保证信号质量。本文首先分析了在没有任何措施的前提下进行宏分集组网,但前向容量会随着宏分集基站数的增多而减少。在分析容量损失原因的基础上,我们进一步提出在终端利用Rake接收机对各路信号进行同步、相位调整,再进行最大比值合并,然后发送给用户,由此,前向容量大大提高。TD-SCDMA trunking communication cell using a macro diversity technique can effectively overcome the large scale fading and ensure quality of signal. First, in the absence of any measures networking based on macro diversity is analyzed in this paper, but the forward-link capacity will be reduced as increasing in the number of base stations. After analyzing the reasons for capacity loss, we further propose a way, which is synchronizing signals on separate ways and adjusting phase using Rake receiver in the terminal, then combinating signals though maximum ratio combination, and then sending to the user, forward-link capacity will increase greatly.

关 键 词：TD—SCDMA集群通信系统 部分宏分集 RAKE接收机 前向容量 

分 类 号：TN929.533[电子电信—通信与信息系统]