室内分布系统干扰问题和解决方案研究

摘要

With the development of mobile communication technology,the distributed antenna system(DAS)becomes much more complex and the interference caused by multi system combing becomes much more serious. It focuses on the interference problem in DAS system,firstly analyses the interference problems and the major cause,focuses on inter-modulation interfer-ence and power capacity interference. According to the interference problem,it analyzes the principle and the effects on the network performance,formulates the interference screening process and gives the final interference solution to solve the in-terference problem.%随着移动通信系统的增多，室内分布系统变得日益复杂，多系统合路造成的干扰也更加严重，针对室内分布系统中的干扰问题进行研究。首先分析了室内分布系统中的干扰问题和产生的主要原因，定位了功率和互调两大类干扰。针对主要的互调干扰和功率容限干扰进行了深入的分析和研究，给出了干扰产生的原理、成因和对系统性能的影响，制定了干扰排查流程来精确定位干扰的类别和成因。针对不同的干扰类别制定出基于高性能器件的室内干扰解决方案，保证室内分布系统性能。