毕业设计(论文)-CDMA无线网优化.docVIP

摘 要 通信技术的发展日新月异，移动业务蓬勃发展已经渗入了人们生活的方方面面，给人们生活带来了极大便利。随着移动网络的发展， CDMA无线网络建设规模逐渐扩大，它提供的各类业务在信号质量、安全性、功耗和可靠性等方面都表现出很强的技术优势。 但随着CDMA无线网络中用户的飞速上涨，网络的不断扩容，原有的网络设计及结构改变、话务量不断增加直接影响着CDMA无线网络的质量。因此CDMA无线网络进行优化就非常重要。 本文介绍了CDMA无线网络的基本原理，分析了目前CDMA无线网络现状，既原有网络由于话务量少基站建设少，现在话务提升，网络规模不断扩大，随之而来的网络规划，基站选址不合理，信号覆盖不好，或出现导频污染等降低网络质量的问题。本文结合实例，给出CDMA无线网络优化的系统流程，通过CQT测试和路测，网管话务统计，对网络关键指标如呼叫接通率、信道阻塞率、掉话率等进行了详细分析，找到了问题产生的原因，提出了解决问题的方法，从而提高了网络的服务质量。 关键字：移动通信；CDMA；网络规划；网络优化 Abstract With the rapid development of communication technology , the booming mobile services has infiltrated all aspects of peoples lives,it brings a great convenience for people . With the development of the mobile network, the development of mobile communications is rapidly , the construction scale of CDMA network is also gradually expanding, since CDMA is one of fastest growing digital wireless technology in mobile communications, therefore, it provides various types of business in the signal quality, safety, power and reliability, have shown a strong technological advantage. With the rapid development of global mobile network,the customers of CDMA network increases rapidly, the network continues expansion , the original network design and structural changes、the telephone traffic increasing , these factors directly affect the quality of CDMA network. Therefore, it is very important to optimize CDMA. Only use the idea of optimization guide the planning, with a good optimization process, a good network can produce. This article describes the CDMA wireless communication networks, theory, channel and so on. For the key indicators of network: Call setup success rate, call drop rate and other issues are analyzed in detail and put forward solutions to the optimization process is given in the case. Analysis of the current status of CDMA network, the original network has less telephone traffics and base station,more mountain stations,but now the network has more telephone traffics , the customers rising