LTE-A系统异构网络时域小区间干扰协调技术标准化研究  

Standardization of Time-domain Inter-Cell Interference Coordination in LTE-A Heterogeneous Network

作　　者：曾梦弦[1] 张欣[1] 桑林[1] 杨大成[1] 

机构地区：[1]北京邮电大学信息与通信工程学院

出　　处：《现代电信科技》2013年第8期36-41,共6页Modern Science & Technology of Telecommunications

摘　　要：微微蜂窝(Picocell)是一种有效提高特定区域吞吐量和单位区域频谱效率的新兴技术。然而,宏蜂窝与Picocell重叠覆盖的特点使系统干扰结构更加复杂,因此在实际部署中,需要采用有效的小区间干扰协调技术以降低干扰。文章重点介绍了小区覆盖扩展(CRE)技术、以及基于几乎空白子帧(ABS)和目前3GPP重点关注的reduced power ABS时域小区间干扰协调技术方案。Picoeell is considered to be an emerging and key item in LTE-Advanced system, for providing high spectral efficiency and system capacity with low power. However, effective interference coordination algorithms are in great demand to solve those much more complicated interference scenes in heterogeneous networks. In this article, we give a summarization of several typical interference coordination algorithms discussed in 3GPP recently, such as cell range extension （CRE）, almost blank subframe （ABS） and reduced power ABS time-domain intercell interference coordination technology.

关 键 词：异构网络 宏蜂窝 微微蜂窝 时域小区间干扰协调 LTE—Advanced 

分 类 号：TN914.5[电子电信—通信与信息系统]