摘要
在简要介绍无线干扰产生的根源的基础上,首先分析了TDD系统中的典型干扰: 小区内的干扰、小区间的干扰、TDD系统与 FDD系统的干扰等,然后特别研究和总结了建设基于TD-SCDMA标准的3G移动通信系统存在的无线干扰基本情形,主要有: TD-SCDMA技术内的干扰、WCDMA与 TD-SCDMA的干扰、cdma2000与TD- SCDMA的干扰、TD-SCDMA与GSM／GPRS 的干扰、TD-SCDMA与PHS的干扰等,并从系统工程设计和技术方案设计以及政府频率规划等角度简要指出了降低和消除干扰的方法。
After introducing the causes of radio interferences in brief, this paper analyzes the typical interferences in TDD system, namely the interferences within a cell or between cells, tbe interferences of TDD system and SDD system etc. Then, it particularly studies and summarizes the basic forms of existing radio interferences when constructing 3G Mobile Communication System based on TD-SCDMA, including the interferences within TD -SCDMA, interferences between WCDMA and TD- SCDMA, interferences between cdma2000 and TD-SCDMA, interferences between TD- SCDMA and GSM/GPRS, and the interference between TD-SCDMA and PHS etc. At last, it briefly points out the ways to reduce or eliminate the interferences in terms of system engineering design, technical scheme design and government frequency planning etc.
出处
《现代电信科技》
2006年第4期35-38,78,共5页
Modern Science & Technology of Telecommunications
