毕业论文 gsm无线网络的设计与优化.doc

摘要
随着我国GSM数字移动通信事业的蓬勃发展，移动用户对网络质量的要求越来越高，移动运营商也开始越来越重视移动网络的质量，因为移动运营商的核心竞争力就在于移动网络质量的好坏。网络优化是提高移动网络质量的最直接和最有效的方法，而其中对无线网络的优化又是网络优化中最重要、最复杂的一项内容。论文对GSM网络无线部分设计与优化进行了深入研究。简要介绍了GSM数字移动通信系统的发展现状、系统基本构成、各个子系统的结构组成和各组成实体的各自作用、接口，并对无线部分的接口作了较为详细的介绍。然后阐述了网络优化的重要意义，网络优化的基本概念、优化目标、网络优化的工作流程以及在无线网络优化中经常使用的几种方法。重点介绍了影响GSM网络运行的主要技术指标：掉话率、阻塞率、切换成功率、RACH接入有效性、分配失败率的分析和优化，提出了相应改善指标的解决办法。再联系现网实际情况，对日益复杂的无线环境进行了分析，对网络中可能存在的干扰种类和原因，以及如何排除干扰的措施。并对影响GSM网络覆盖的重要因素，实施了切合工程实际的无线网络优化方案,大幅度提升网络质量,并以此为基础进一步研究了用户话务行为,用户增长趋势,对工程建设和网络扩容提出了建议,完成了网络规划设计的初步方案。最后通过对无线优化室内覆盖中一些实际案例的分析，理论与实际相结合，将网络优化的一些方法在实际工作中进行了验证，，希望能对今后的优化工作有所帮助，取得更好的效果。

关键词：GSM 移动通信 网络优化











Abstract
With China's GSM digital mobile communications business of booming development, mobile users for network quality request more and more high, mobile operators also begin to pay more and more attention to the quality of the mobile network, because mobile operators core competitiveness lies in mobile network quality. Network optimization is to improve the quality of the mobile network the most direct and effective method for the wireless network, and the optimization of the most important and network optimization, the most complex a content. Papers on GSM network wireless part design and optimization were studied. Briefly introduced the GSM digital mobile communication system's development present situation, the basic structure, system composition and structure of each subsystem each composition entity respective functions, interface, and the interface for wireless part are introduced in detail. And then expounds the important significance of network optimization, the basic concept of network optimization, optimizing targets, network optimization work process and in the wireless network optimization of several methods of frequently used. Mainly introduces the GSM network operation affect main technical indices: recent success rate, switching optimization.some, RACH access effectiveness, distribution, and the analysis and the optimization of failure, and puts forward corresponding solutions to improve indexes. Contact again real situation of net now increasingly complex and wireless environment of network was analyzed, and the possible presence of interference types and reasons, and how to remove interference measures. And the affecting the GSM network coverage of important factors, implement the wireless network with the practical engineering, greatly enhance network optimization scheme based on the quality, and studied the user traffic behavior, the user growth trend of engineering construction and network, the proposed expansion, completing the network planning and design of the preliminary scheme. Finally based on optimal indoor coverage of wireless some actual case analysis, combining theory with practice, some methods of network optimization in the practical work, and verifies the hope of future help optimize work, and get better results.

Keywords：GSM mobile communication network optimization

目录
摘要…………………………………………………………………………………………...Ⅰ
Abstract……………………………………………………………………………………….Ⅱ
前言…………………………………………………………………………………………….1
1．GSM网络优化的概述………………………………………………………………………..2
1.1 GSM网络优化的概念………………………………………………………………..2
1.2 GSM网络优化的主要内容以及注意事项…………………………………………...2
1.2.1 GSM网络优化的主要内容…………………………………………………...2
1.2.2 网络化过程中的注意事项.............................................................................2
1.3 GSM网络优化的意义...................................................................................................2
2.GSM网络优化的基本原理和方法..........................................................................................4
2.1 GSM网络的基本原理...................................................................................................4
2.2 网络优化的基本概念及其必要性.............................................................................9
2.3 网络优化的目标及前提条件.....................................................................................9
2.4 网络优化工作流程................................................