基于协作多点的干扰协调技术  

On Interference Coordination Based on Coordinated Multipoint Transmission

作　　者：张瑞[1,2] 宋荣方[1,3] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]河南工业大学信息科学与工程学院,河南郑州450001 [3]东南大学移动通信国家重点实验室,江苏南京210096

出　　处：《南京邮电大学学报（自然科学版）》2010年第3期46-52,57,共8页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家重点基础研究发展计划(973计划)(2007CB310607);国家科技重大专项(2009ZX03003-006);国家自然科学基金(60972041);东南大学移动通信国家重点实验室开放课题基金;江苏省高校自然科学基础研究计划重大项目(08KJD510001);教育部博士点基金(20080293004)资助项目

摘　　要：协作多点干扰协调技术是第四代移动通信中的关键技术,文中对此进行了全面回顾。内容主要分为3个方面:基站联合传输/预编码、基站协作调度和基站联合检测/解码。基站协作传输主要表现在基站协作设计合适的预编码向量/矩阵,降低/避免用户间的干扰;基站协作调度表现在通过按照某种准则选择用户子集与基站通信,在系统吞吐量和通信公平性之间做出折中;基站联合检测/解码是通过基站间的协作对多个用户的信号进行译码。Interference coordination based on Coordinated Muhipoint Transmission, the key technology of 4G mobile communications, is overviewed in this paper, which primarily includes three parts： cooperative transmission/precoding, cooperative scheduling and cooperative detection/decoding. Multi-cell cooperative transmission is a strategy of designing a proper precoding through base station cooperation to lower/avoid inter-user interference. Otherwise, cooperative scheduling aims to select a set of users according to some criteria to communicate with base stations, making a trade-off between system throughput and communication fairness. Joint detection between collaborative base stations is to decode signals from multiple users.

关 键 词：基站协作 小区间干扰 协作传输 协作调度 联合检测 

分 类 号：TN911.7[电子电信—通信与信息系统]