FDD 1800室分接收底噪不达标问题研究  

Study on the Problem of Unqualified Receiving Bottom Noise in the Indoor Distribution System of FDD 1800

作　　者：吴德胜 刘鹏程 刘立洋 Wu Desheng;Liu Pengcheng;Liu Liyang(China Mobile Group Shandong Co.,Ltd.,Jinan 250001,China;China Mobile Group Design Institute Co.,Ltd.Beijing 100080,China)

机构地区：[1]中国移动通信集团山东有限公司,山东济南250001 [2]中国移动通信集团设计院有限公司,北京100080

出　　处：《邮电设计技术》2020年第5期63-66,共4页Designing Techniques of Posts and Telecommunications

摘　　要：现网室内覆盖引入FDD 1 800 MHz后,出现了室分底噪异常抬升问题,严重影响4G用户感知。基于此,分析了FDD 1 800合路建设后的互调干扰,深入研究了当前无源器件的互调抑制度、功率容量等性能指标及其影响,基于功率容限设置提出了高性能器件与一般器件相结合的干扰问题解决方案,保证室分系统的质量和稳定性,提升用户体验。After the introduction of FDD 1 800 MHz in the indoor coverage of the existing network,the interference problem of the abnormal rise of the indoor bottom noise occurred,which seriously affected the perception of 4G users. Therefore,it takes the intermodulation interference analysis as the entry point,and deeply studies the performance and impact of the current intermodulation suppression,power capacity and other passive components. Finally,combined with the current performance of passive components,a solution to the interference problem of high-performance devices combined with general devices is proposed. This solution fully guarantees the quality and stability of the indoor distribution system and enhances the user experience.

关 键 词：室内分布系统 FDD 1800 MHz 互调干扰 功率容量 高性能器件 

分 类 号：TN929.5[电子电信—通信与信息系统]