GSM网络的室内分布设计与优化.doc

毕业设计（论文） 设计（论文）题目： GSM网络的室内分布设计及优化 摘 要 随着社会的发展，城市中移动通信用户的飞速增加以及高层建筑越来越多，话务密度和覆盖要求也不断上升。由于现代城市建筑都是框架结构，而且规模大，对移动通信信号有很强的屏蔽作用。在大型建筑物的底层、地下商场、地下停车场等环境，移动通信信号弱，形成了移动通信的盲区；在中间楼层，由于来自周围不同基站信号的重叠，产生乒乓效应，手机频繁切换，甚至掉话，严重影响了手机使用；在建筑物的高层，由于受基站天线的高度限制，无法正常覆盖，也是移动通信的盲区；在有些建筑物内，虽然手机能够正常通话，但是用户密度大，基站信道拥挤，手机通上网困难。可见，室内覆盖及优化已成为急待解决的问题之一。 本文主要研究了GSM网络的室内分布设计（也称室内覆盖，以下统称室内覆盖）及优化，在对基于室内覆盖系统优化进行简单研究和分析的基础上，结合移通图书馆的实际情况作了勘察分析研究，给出完整的设计方案。最后利用自己手机到现场的测试，对本论文设计室内覆盖系统进行测试和分析。 【关键词】GSM 室内覆盖 网络优化 ABSTRACT With the development of society, the city of mobile communications users rapid increase and high building more and more, traffic density and cover requirements are rising. Because the modern urban architecture frame structure, and large scale on the mobile communication signals have very strong shield effect. In the bottom of the large buildings, and underground shopping malls, underground parking lot environment, and the mobile communication signal is weak, formed the mobile communication of blind area; In the middle of the floor, due to the different from around the base station signal overlap, produce table tennis effect, cell phone frequent switching, and even drop the words, serious impact on the mobile phone use; In the high-rise buildings, as the base station antenna height limit, cant normal coverage, also is the amount of mobile communication; In some buildings, although cell phones can normal conversation, but the user density, base station channel crowded, the mobile phone Internet difficult. Visible, indoor coverage and optimize the urgent problem. This paper mainly studies the GSM network distribution of indoor design (also called the indoor coverage, hereinafter referred to as indoor coverage) and optimization, based on indoor coverage system optimization for simple research and on the basis of analysis, combined with the actual conditions of the library of predominant the survey analysis, we give complete design. Finally using his mobile phone and test software to the sce