WCDMA无线网络掉话问题优化研究
发布时间：2018-10-05 07:30
【摘要】：随着网络优化工作重要性的日益体现,网络优化的技术也不断地得到改进和发展,21世纪的高速率、大容量、高质量、全球化多媒体移动通信网的目标,使网络优化与管理已经成为近几年发展迅速的热点研究领域。由于WCDMA使用码分多址技术,是一个自干扰系统,存在远近效应、导频污染等问题,有必要进行网络优化,使系统性能得到不断改善,提供最优的服务质量,即获得最佳的覆盖、满意的信号强度、最佳的通话质量和最低的掉话率等。文章首先从WCDMA的系统讲起,介绍了WCDMA的系统结构、主要技术,着重讲述了切换技术和功率控制。WCDMA无线网络优化的主要目的是尽可能提高网络性能,以满足不断变化和发展的业务需求。使无线网络能够覆盖最大的需求面,在覆盖面内信号具有满意的强度,可以提供高质量的通话,使掉话率达到最低,从而不断改善系统性能。网络资源应该如何分配才能实现最佳配置,使网络的服务质量得到保障;如何建立网络问题的相应机制。针对该网络优化问题,本文开展了以下工作:本文在介绍WCDMA网络优化问题基础上,讨论了WCDMA网络掉话的类型和主要优化方法。通过邻区漏配、弱覆盖、切换、干扰等典型导致掉话等案例分析进行了网络优化,实现了优化WCDMA网络的性能的目的,达到了优化网络环境、确保安全运营、提升处理速度,使网络运转处于良好状态的效果。
[Abstract]:With the increasing importance of network optimization, network optimization technology has been continuously improved and developed in the 21st century high speed, large capacity, high quality, global multimedia mobile communication network goals, Network optimization and management has become a hot research field in recent years. Because WCDMA uses code division multiple access (CDMA) technology, which is a self-interference system, there are many problems such as near-far effect, pilot pollution and so on. It is necessary to optimize the network so as to improve the system performance and provide the best quality of service, that is, to obtain the best coverage. Satisfactory signal strength, optimal call quality and minimum drop rate, etc. This paper begins with the system of WCDMA, introduces the system structure and main technology of WCDMA, emphasizes on the switching technology and the main purpose of power control. WCDMA wireless network optimization is to improve the network performance as much as possible. To meet changing and growing business needs. The wireless network can cover the maximum demand side, the signal in the coverage has satisfactory intensity, can provide the high quality call, make the drop rate reach the lowest, thus continuously improve the system performance. How to allocate the network resources to achieve the best allocation, so that the quality of service of the network can be guaranteed, and how to establish the corresponding mechanism of network problems. The main work of this paper is as follows: based on the introduction of WCDMA network optimization problem, this paper discusses the types and main optimization methods of WCDMA network call drop. The network optimization is carried out through the analysis of some typical cases, such as missing distribution, weak coverage, handoff, interference and so on. The purpose of optimizing the performance of WCDMA network is realized, and the network environment is optimized, the safe operation is ensured, and the processing speed is improved. The effect of keeping the network running in good condition.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.53
本文编号：2252528
[Abstract]:With the increasing importance of network optimization, network optimization technology has been continuously improved and developed in the 21st century high speed, large capacity, high quality, global multimedia mobile communication network goals, Network optimization and management has become a hot research field in recent years. Because WCDMA uses code division multiple access (CDMA) technology, which is a self-interference system, there are many problems such as near-far effect, pilot pollution and so on. It is necessary to optimize the network so as to improve the system performance and provide the best quality of service, that is, to obtain the best coverage. Satisfactory signal strength, optimal call quality and minimum drop rate, etc. This paper begins with the system of WCDMA, introduces the system structure and main technology of WCDMA, emphasizes on the switching technology and the main purpose of power control. WCDMA wireless network optimization is to improve the network performance as much as possible. To meet changing and growing business needs. The wireless network can cover the maximum demand side, the signal in the coverage has satisfactory intensity, can provide the high quality call, make the drop rate reach the lowest, thus continuously improve the system performance. How to allocate the network resources to achieve the best allocation, so that the quality of service of the network can be guaranteed, and how to establish the corresponding mechanism of network problems. The main work of this paper is as follows: based on the introduction of WCDMA network optimization problem, this paper discusses the types and main optimization methods of WCDMA network call drop. The network optimization is carried out through the analysis of some typical cases, such as missing distribution, weak coverage, handoff, interference and so on. The purpose of optimizing the performance of WCDMA network is realized, and the network environment is optimized, the safe operation is ensured, and the processing speed is improved. The effect of keeping the network running in good condition.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.53
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