文档介绍：WCDMA室内覆盖系统规划设计
蔡杰周承诚须佳昀
摘要
室内覆盖作为移动通信网络深度覆盖和网络优化的重要手段在当前移动通信运营商完善网络覆盖,提升服务层次等方面发挥重要作用。
本文首先课题研究背景,阐述了WCDMA等为代表的3G系统的演进历程;同时结合室内覆盖建设特点和现状,就WCDMA室内覆盖建设的必要性以及面临的问题做了阐述。
接着讨论了WCDMA室内覆盖规划的一些总体设计思路。包括总体设计流程,规划选点的划分方法和优先级划分。分析了各类WCDMA室内覆盖信号源的特点以及相互比较,介绍了信号源选择的基本原则。主要阐述了分布系统的设计方法与设计要点。
针对当前国内运营商2G和3G共存的实际情况,讨论了WCDMA与已有2G系统共建的思路。并针对现有2G系统在兼容WCDMA方面的有缺点,进行分析。讨论了WCDMA与2G共建的合路方式,馈线、天线的改造等方法。详细分析了WCDMA与其他系统同接入一套分布系统时,抑制杂散、阻塞、互通干扰所需的隔离度。
最后以实例说明WCDMA室内覆盖实际工程的基本工作内容。
关键词:室内覆盖,WCDMA,3G,多系统合路,干扰分析。
PLAN&DESIGN OF WCDMA INDOOR COVERAGE SYSTEM
ABSTRACT
As a very important method work deep coverage and optimization,indoor coverage plays a good roll for the operateor to develop work coverage and provide high quality service.
We first discuss the background of this article, expatiate the road map of the evolution of 3G,in which WCDMA is a good with the indoor coverage,we then analyse the necessary to design WCDMA indoor Coverage,and the problem we must solve.
We also discuss the general method of WCDMA indoor coverage design,including the flow chart of design, way of classification and priority of the buildings to be figure out the specialty of different kinds of signal sources pare within those sources,and how to choose the suitable source for the indoor coverage and the key points to layout the antenna and feeder distribution.
According to the coexistence of 2G and 3G operators in China, we discussed the thought bining WCDMA with existing 2G system. Those disadvantages which were detected bining these two systems have been analyzed. And we also discussed the point bining between WCDMA and 2G and the reconstruction of feeders and antennas. Further more, we analyzed the isolation required from the lost inhibition, obstruct
Further more, we analyzed the isolation required from the lost inhibition, obstruction and interoperability interference in connecting WCDMA into a distributed system with others.
Keywords: Indoor Coverage,WCDMA,3G,POI,Int