摘要
从广义的信号拉远角度介绍射频拉远技术的分类和应用;TD-SCDMA以智能天线为核心的天馈系统在实际应用中面临馈线多、拉远距离有限和施工维护困难等弊端,制约了TD-SCDMA射频信号拉远的应用,为此提出的TD-SCDMA中频信号拉远、基带信号拉远(BBU+RRU)作为补充,多种技术选择也为运营商建设网络带了便利和优势。
It introduces the classification and application of remote radio technology on the extensive technical point. Smart antenna and feeder system of TD-SCDMA have many shortcomings in field application, such as much more feeder, limited distance and harden construction, which restricts the application of the TD-SCDMA. Remote intermediate-frequency signal technology and remote baseband signal technology are developed as supplements. Telecom operators can easily build a TD-SCDMA network based on variety technology options.
出处
《电信工程技术与标准化》
2007年第4期21-25,共5页
Telecom Engineering Technics and Standardization
