基于IP技术的怀化联通核心网方案设计与实现

发布时间：2018-01-22 17:42

本文关键词： 核心网 IP 软交换移动通信　出处：《南京邮电大学》2014年硕士论文　论文类型：学位论文

【摘要】：近年来,移动通信网络规模发展迅猛,用户规模成倍增长,而话务量也呈雪球式增长,几乎每年的TDM端口扩容都满足不了节日需求,这种电路交换的方式暴露出应对高话务能力差,资源利用不均衡。随着IP技术的日趋成熟,分组交换替代电路交换成为不可逆转的趋势。网络采用IP技术是未来电信网络的重要发展趋势之一。可实现移动通信网络结构的简化与优化,支持组网的灵活性和传输带宽的最佳利用。本文对联通IP技术改造的背景和可行性进行了研究,根据中国联通移动核心网采用IP技术改造总体建设要求,对怀化联通核心网现状进行了分析,讨论了承载网的远端组网方式和近端组网方式,并研究了软交换设备之间的Nc、Nb和Mc接口及其协议。论文重点对基于IP技术的怀化联通核心网方案进行了设计,包括地址规划、承载改造、M3UA改造及话务割接方案等。制定了整套的设施步骤,包括多归属SCTP改造、M3UA变更、BICC承载建立和路由建立调整,并且对实施过程中出现的问题进行了分析,给出了解决方法,最后对交换系统接通率指标进行了分析。
[Abstract]:In recent years, the scale of mobile communication network has developed rapidly, the scale of users has increased exponentially, and the volume of traffic is also snowball growth, almost every year TDM port expansion can not meet the demand of the festival. This mode of circuit switching exposes the poor ability to deal with high traffic and unbalanced utilization of resources. With the development of IP technology, it is becoming more and more mature. Packet-switched alternative circuit switching has become an irreversible trend. IP technology is one of the most important trends in future telecommunication networks. It can simplify and optimize the network structure of mobile communication. This paper studies the background and feasibility of IP technology transformation of Unicom, according to the overall construction requirements of China Unicom mobile core network using IP technology transformation. This paper analyzes the present situation of Huaihua Unicom core network, discusses the remote and near-end networking mode of the carrying network, and studies the NC between softswitch devices. This paper focuses on the design of Huaihua Unicom core network scheme based on IP technology, including address planning and load carrying modification. M3UA revamp and traffic cutting scheme etc. A complete set of facility steps including multi-home SCTP modification M3UA change BICC load setting and route setting adjustment are developed. The problems in the process of implementation are analyzed, and the solutions are given. Finally, the switching system switching rate index is analyzed.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5

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