时分双工在无线宽带通信系统中的应用分析  

TDD Wireless Broadband Communication System of Analysis

作　　者：魏奇[1] 闫鹏[2] 

机构地区：[1]中国人民解放军92941部队 [2]电信科学技术第四研究所

出　　处：《无线通信技术》2010年第2期23-27,共5页Wireless Communication Technology

摘　　要：在无线宽带通信的发展过程中,用户迅速增加的业务量及对覆盖的要求和用户可用有限频谱资源之间的矛盾日益突出。用户迫切希望提高系统的频谱利用率从而提供更大的容量,TDD双工方式正是解决这个矛盾的核心技术之一。本文从TDD原理入手,结合实际应用中的复杂度、使用成本等因素,重点介绍了TDD在McWiLL系统中的应用,并详细分析了它的优势和存在的问题。最后针对国内无线接入发展情况,得出结论在即将到来的下一代移动通信系统中,TDD必将得到广泛应用并发挥重要的作用。In wireless broadband communications in the development process, the user rapidly in- creasing volume of business, users are covered by the requirements and the limited spectrum re- sources available to the user the contradiction between the increasingly prominent. Users are eager to improve the system spectral efficiency in order to provide greater capacity, TDD duplex mode to re- solve this contradiction is one of the core technologies. In this paper start with TDD principles, corn- bined with the practical application of the complexity, the use of cost and other factors, highlighting the TDD in the McWiLL system applications, and a detailed analysis of its advantages and prob- lems. Finally for the domestic wireless access developments and concluded that in the upcoming next -generation mobile communication systems, TDD will be widely used and play an important role.

关 键 词：时分双工 MCWILL系统 宽带无线接入 智能天线 

分 类 号：TN925.93[电子电信—通信与信息系统]