频带聚合技术在LTE-Advanced系统中的应用  

The Application of Carrier Aggregation Technique in LTE-Advanced Systems

作　　者：张翔[1] 王文博[1] 彭木根[1] 

机构地区：[1]北京邮电大学泛网无线通信教育部重点实验室,北京100876

出　　处：《中兴通讯技术》2010年第6期44-48,共5页ZTE Technology Journal

基　　金：国家重大专项课题(2011ZX03003-002-01)

摘　　要：为了满足无线网络日益增长的数据业务的需求,LTE-Advanced系统引入了频带聚合技术增加单个用户的传输带宽。在保持对现有协议修改不大和对LTE终端良好兼容性的前提下,频带聚合技术能够大幅度提高LTE-Advanced终端的峰值速率。文章介绍了频带聚合的原理和主要技术方案,讨论了使用频带聚合对系统控制信道设计、切换和频谱效率的影响。To meet requirements associated with growth in network data, carrier aggregation（CA）is proposed in LTE-A systems to increase bandwidth for specific users. CA improves the peak rate of LTE-A terminals, requires little modification of existing specifications, and is backwards compatible. This paper discusses the techniques and major proposals for CA as well as its impact on system control channel design, handover, and spectrum efficiency.

关 键 词：频带聚合 控制信道设计 频谱分配 

分 类 号：TN929.5[电子电信—通信与信息系统]