毕业论文-GSM分解.doc

题 目 GSM网络的话务均衡 专业班级： 移动通信网络优化xxx 学生姓名： xx 学号： xxxxxxxxxx 指导教师： xxx 职称： xx 起讫日期： 201x.1-201x.6 GSM网络的话务均衡 专业：移动通信网络优化 学号：201101110214 学生姓名：梁琦 指导老师：张效民 摘 要 近几十年来, 移动通信在中国得到了长足的发展, 截至2011年3 月, 中国移动通信用户已达到6亿, 其中90 %以上为GSM用户。随着移动电话用户数日渐增长，随之话务量也大大增加。话务量大大增加的同时话务量不均衡的现象也越来越严重，特别是无线信道话务负荷的不均衡表现得尤为突出。 本文在介绍了有关话务基本知识及话务不均衡的原因后，结合自己在中国山西临汾移动分公司2011年5月网络专项优化中所做的工作，通过话务报告体现的各小区的话务量，总结了现网中各种话务不均衡的原因，并此基础上针对原因列举了相同LAC（位置区号）下G网的话务均衡、利用扩容的话务均衡、通过修改切换门限来话务均衡等来达到话务均衡的方法。 首先根据话务均衡相关知识分析了话务不均衡的原因，随后对导致话务不均衡的相关硬件参数和软件参数及相关参数设置对话务均衡的影响进行了一一介绍。 基于相关参数设置对话务均衡的影响，并结合在2011临汾项目现场网络专项优化中所做的工作，针对各种原因列举了几种通过各参数的综合设置以达到话务均衡的实例。进一步证实了该理论的合理性。 关键词：GSM；话务均衡；硬件调整；参数调整 The Traffic Balance Of GSM (global system for mobile communication) Abstract In recent decades, mobile communication in China have been considerable development, as of March 2011, China Mobile users has reached 600 million, of which 90% were GSM users. With the growing number of mobile phone users, along with traffic also increased significantly. Greatly increased traffic, while traffic imbalance has become increasingly serious, especially in wireless channel traffic load imbalance was particularly prominent. It introduced the basic knowledge of traffic and cause traffic imbalance, the combination of their own Linfen in Shanxi, China Mobile branch in May 2011 the special optimization of the networks efforts reflected through the traffic report Traffic of the district, summed up the current network traffic is not balanced in a variety of reasons, and reasons cited for the basis of the same LAC (Location area code), then the next G network services balance, using a balanced expansion of traffic, by modifying the switching Threshold to balance the traffi