基于软交换的NGN长途网通信及研究.docVIP

本文由prettystony贡献 doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT，或下载源文件到本机查看。 基于软交换的 NGN 长途网通信的研究 摘 要 21 世纪是高速发展的信息化时代， 因特网的迅速发展， 人类正已飞快的步伐迈入到 信息化社会当中。而原本以电路交换为基础的 PSTN 已经难以满足人们对话音、视频、 数据等新兴多媒体业务的巨大需要。 2010 年 1 月 13 日国务院总理温家宝主持召开国 务院常务会议，决定加快推进电信网、广播电视网和互联网三网融合。由此看出， 传统的 PSTN 网络和 IP 网络的融合已成必然，而基于软交换的下一代网络技术以其独 特的优势并能够实现无缝化的融合已经成为各大国际标准化组织、电信运营商、设备厂 商研究的热门话题。 下一代网络（NGN—Next Generation Network），是以分组交换的 IP（IPv6）技术 为基础的，能够提供开放化的接口以满足不同电信业务需要同时能够利用多种宽带能力 和 QoS（Quality of Service）保证等多种传送技术，调整和优化网络结构，最大限度的 减少电信运营商的投资，满足日益增长的新业务需求，是未来电信运营商的主要发展方 向。 关键词：软交换，下一代网络，NGN，IPv6 The Study of Long Distance Communication Network of NGN Based on Softswitch Abstract The 21st century is the information age of therapid development, the fast pace of Internets rapid development has made the human being into the information society. And PSTN which originally based on circuit-switched has been difficult to meet people huge emerging needs on multimedia services such as the voice, video, data. On January 13, 2010, Premier Wen Jiabao chaired a State Council executive meeting, decided to speed up the telecommunications network, radio networks and Internet triple play. This shows that the traditional PSTN network and IP network integration has become an inevitable, and next generation network technology based on Softswitch used its unique advantages to achieve seamless integration has become a hot topic for the major international standards organizations, telecom operators providers, equipment manufacturers. Next Generation Network (NGN-Next Generation Network), based on packet switching IP (IPv6) technology, can provide an open and interfaces to meet the different needs of telecom business, be able to use a variety of broadband capacity and QoS (Quality of Service ) guarantees and other transmission technology at the same time, and to adjust and optimize the network structure, minimize investment in telecommunications operators, to meet the growing demand for new business. This