基于载波池技术的GSM网络室内分布优化

发布时间：2018-02-22 03:39

本文关键词： GSM系统室内分布无线网络优化载波池协议接口 DT测试 CQT测试话务拥塞　出处：《南京理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着现代化城市住宅和办公布局的分离和延展,人们生活方式的规律化和移动化正逐步形成固定模式。而现代人的电话通信方式在这种模式的影响下,面临着手机无法正常通话、遇忙掉话、通话质量差等诸多问题,尤其在大型写字楼、商场内部以及高话务量的校园楼宇中出现。而究其问题本身,是由于运营商电话通信业务短时间内无法满足突发性增长和话务量骤然增加造成的。针对这一问题,本论文考虑通过载波池技术在GSM室内分布建设中的应用,从而达到解决校园话务拥塞的目的。论文首先从GSM系统的发展、构成以及原理等方面讲起,着重于GSM系统是通过L1、L2、L3协议和Sm、Um、A接口进行作业；其次,讲述了无线网络优化技术的概念、作用和基本构成,详细阐述6种无线网络优化的抗话务冲击实施方案(半速率,载波调整,小区合并, 小区分裂, 小区负荷分担, 载波池)以及测试工具和方法(DT测试和CQT测试)；第三,深入讨论在移动无线领域所应用的载波池技术,指出载波池是基于光纤直放站技术的产生,包括硬件(远端和近端)和软件(监控和切换)两个系统。以及应用范围(周期性话务量高及突发性话务量高的区域)和设计方法,包含依据、标准和思路；第四,引入室内分布系统作为载波池技术运用的平台,介绍信号分布方式：无源天馈分布、有源分布、光纤分布和泄漏电缆分布方式,室内分布系统技术(室内电磁传播模型、室内分布系统的噪声分析、室内分布系统的上下行平衡)以及室内分布系统方案的设计与测试方法；最后,在我的设计论文中,通过对郑州澍青医学高等专科学校学校信号场强、话务量测试情况的介绍和分析,设计了关于郑州澍青医学高等专科学校采用载波池室内分布技术解决话务拥塞的方案,实施并且开通测试,达到了解决问题的目的,从而证明了载波池系统在GSM室内分布网络优化中的成功应用。通过本文的讨论,载波池技术在室分领域得到了充足发展,起到解决周期性话务量高及突发性话务量高的目的,最终为运营商资源有效利用和网络覆盖优化发挥了重要价值。
[Abstract]:With the separation and extension of modern urban residential and office layout, the regularization and mobility of people's way of life are gradually forming a fixed mode. Faced with many problems, such as the inability of mobile phones to speak normally, busy calls, poor quality of calls, and so on, especially in large office buildings, shopping malls and high-volume campus buildings. But the problem itself, The reason is that the telephone communication service can not meet the sudden growth and traffic increase in a short period of time. In view of this problem, this paper considers the application of carrier pool technology in the construction of GSM indoor distribution. In order to solve the congestion of campus traffic, the thesis begins with the development, structure and principle of GSM system, and emphasizes that the GSM system is operated through the L1 / L2 / L3 protocol and SmallUmBU / A interface. This paper describes the concept, function and basic structure of wireless network optimization technology, and describes in detail six kinds of wireless network optimization anti-traffic impact implementation schemes (half-rate, carrier adjustment, Cell merging, cell splitting, cell load sharing, carrier pool) and test tools and methods DT test and CQT test. It is pointed out that the carrier cell is based on the technology of optical fiber repeater, including hardware (remote and near end) and software (monitoring and switching), as well as the application range (the area with high cyclic traffic and sudden traffic) and the design method. Including the basis, standards and ideas; 4th, the introduction of indoor distribution system as the platform for the application of carrier cell technology, the introduction of signal distribution: passive antenna distribution, active distribution, optical fiber distribution and leakage cable distribution, Indoor distribution system technology (indoor electromagnetic propagation model, indoor distribution system noise analysis, indoor distribution system up and down balance) and indoor distribution system scheme design and test methods; finally, in my design paper, Based on the introduction and analysis of signal field strength and traffic test in Zhengzhou Shu Qing Medical College, a scheme of using carrier pool indoor distribution technology to solve traffic congestion in Zhengzhou Shu Qing Medical College is designed. It is proved that the carrier cell system has been successfully applied in the optimization of GSM indoor distribution network. Through the discussion in this paper, the carrier cell technology has been fully developed in the field of chamber division. To solve the problem of high cyclic traffic and sudden traffic, it plays an important role in the efficient utilization of carrier resources and the optimization of network coverage.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.532

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