中国电信SIP规范第一部分 总体要求.NGN IMS测试规范
上传时间： 2013-12-09
上传用户：671145514
张海懿NGN总体发展思路－传送网部分0922
上传时间： 2017-05-10
上传用户：zhangyigenius
NGN新一代网络技术和应用,简单易懂不可多得,便于初学者学习参考学习
上传时间： 2013-12-06
上传用户：6546544
通讯协议，视频、会议电视采用的主流通讯协议，目前在NGN中广泛应用
标签： 通讯协议
上传时间： 2015-03-19
上传用户：Thuan
sip协议的完整教材，在NGN，IMS项目中会得到广泛的应用
上传时间： 2016-08-24
上传用户：songrui
imeet超媒体协同的系统介绍，基于NGN，SIP协议的视频会议
上传时间： 2016-10-10
上传用户：xwd2010
The telecommunications industry has seen a rapid boost within the last decade. New realities and visions of functionalities in various telecommunications networks have brought forward the concept of next-generation networks (NGNs). The competitions among operators for support- ing various services, lowering of the cost of having mobile and cellular phones and smartphones, increasing demand for general mobility, explosion of digital traffic, and advent of convergence network technologies added more dynamism in the idea of NGNs. In fact, facilitating con- vergence of networks and convergence of various types of services is a significant objective of NGN
标签： Next-Generation Converged Building Networks
上传时间： 2020-05-26
上传用户：shancjb
Free Space Optical Communication (FSOC) is an effective alternative technology to meet the Next Generation Network (NGN) demands as well as highly secured (mili- tary) communications. FSOC includes various advantages like last mile access, easy installation, free of Electro Magnetic Interference (EMI)/Electro Magnetic Compatibil- ity (EMC) and license free access etc. In FSOC, the optical beam propagation in the turbulentatmosphereisseverelyaffectedbyvariousfactorssuspendedinthechannel, geographicallocationoftheinstallationsite,terraintypeandmeteorologicalchanges. Therefore a rigorous experimental study over a longer period becomes significant to analyze the quality and reliability of the FSOC channel and the maximum data rate that the system can operate since data transmission is completely season dependent.
标签： Communication Optical System Space Free
上传时间： 2020-05-27
上传用户：shancjb
《大话核心网-陈学梁》，学习核心网的好书。本书根据核心网演进的脉络，采用浅显易懂的类比方式，描述了程控交换、七号信令、NGN网络、SIP协议、IMS网络、UMTS PS核心网、LTE EPC核心网、SDN网络等系统，并根据多年的技术理解，论述了核心网演进的基本规律，向读者描述了一张完整的核心网发展图。通过回顾核心网的历史，可以更深入地理解作者对核心网发展的一些思考和结论。本书不是关于核心网的第一本读物，但将会是核心网领域的第一幅技术地图。本书立足于通信从业人员，用浅显易懂的表述方式，全新地阐述了核心网的方方面面，适合高校教师、相关专业的学生、运营商、设备商，以及通信网络规划人员阅读与参考。 未经许可，不得以任何方式复制或抄袭本书之部分或全部内容。
标签： 核心网
上传时间： 2022-06-17
上传用户：
