2001年十大热门技术评述

文章对美刊《Telecommunications》提出的2001年十大热门通信技术进行了评述.这十大热门技术是超密集波分复用、先进的FEC、VDSL、自由空间光系统、弹性分组环、H.248/Megaco、基于查询簿的管理、自适应用调制、喇曼放大器,以及SCTP.     

立体显示技术最新进展

介绍了立体显示系统的基本组成及其技术进展.分析了各种立体显示系统的原理和方法,并对它们的性能进行比较.对当前各种立体显示主流产品进行介绍,并展望了立体显示技术的发展方向.     

2002年十大通信热门技术

根据美国《Telecommunications》杂志2002年度十大热门技术选美的结果,今年的选美标准与往常有所不同。如果说,往常选美的标准是强调技术的先进性,或者媒体吹得最响的所谓“杀手锏”技术,或“为技术而技术”的新鲜玩意儿,那么今年电信设备厂商推荐的十大热门技术则更注重“看得见,摸得着,经济又实用”的产品。实际上,有些热门技术是过去曾经在选美中获选的。例如,以太网并不算新,但是它在城域网中的新应用,使它今年成为令人刮目相看的宽带接入技术中的佼佼者,并赋予它新的生命力。下面是今年获选的十大热门技术,技术的重要性与排列顺序无关。     

电信网络安全与攻防技术浅析

1引言随着全球信息化和网络技术的迅猛发展,黑客攻击活动的日益猖獗,网络安全问题日趋严重,已引起社会各界的广泛关注,所以黑客攻防和网络安全技术成为当今通信界的一个热点问题。我国网络由科技界过渡到商业界仅用了一两年的时间,这就导致了我国网络技术界缺乏像美国的网络早期近20年的人才与技术的积累与发展,我国因特网的软硬件设施基本上是采用国外的商品及模式,许多网络在建设初期较少或者根本就没有考虑诸如安全防范等相应措施,因而留下了许多安全隐患,给黑客入侵制造了可乘之机。加上缺乏必要的防范技术人才和解决手段,网…     

Resource-Constrained Innovation for Emerging Economies: The Case of the Indian Telecommunications Industry

A daunting challenge that enterprises face today is how to design and diffuse innovations to effectively tap into local demand in emerging country markets. Although extant literature focuses on the dominant innovation models of multinational enterprises from developed countries, little attention is directed to carefully examining the alternative models of innovation offered by local players from emerging markets. The aim of our study was to gain an in-depth insight toward understanding “what kind of innovation models effectively suit emerging markets needs?” Using the case of an indigenous enterprise, Centre for Development of Telematics from India, we demonstrate how the emphasis on developing affordable and locally sustainable products has provided an alternative model of resource-constrained innovation in the telecommunications sector. The three critical factors for innovation were identified as: entrepreneurial leadership and vision; modular designs to meet user demands of affordability, functionality, and operability through architectural innovation; and exploitation of the local knowledge base and the creation of local innovation clusters. Our study provides insights into the labor-intensive, but capital-sensitive, processes involved in shaping and managing technology development and diffusion to meet the unique demands of mass markets in emerging economies.      

M-ICT时代下的55G技术及创新

提出5G面临的3种技术发展挑战:增强型移动宽带(e MBB)、高可靠低时延通信(URLLC)、大规模机器通信(m MTC)。围绕5G的发展,中兴通讯创新性地提出统一空口(UAI)和云感知软网络(CAS)的技术理念,并围绕该理念,研发出一系列创新技术用于实现5G新型空中接口,例如滤波器组-正交频分多址(OFDMA FBOFDMA)、多用户共享接入(MUSA)、大规模多输入多输出(MIMO)、统一帧结构(UFS)、平滑的虚拟小区(SVC)等,并基于软件定义网络(SDN)/网络功能虚拟化(NFV)技术构建出新型5G网络架构。这些技术和方案进一步地促进了5G的发展。     

Accelerating the Innovation and Transition and Promoting Development of Telecommunications Industry Fast and Healthy——Meeting of 2007 Telecommunications Industry Development and Policy Announcement Is Held Ceremoniously in Beijing

At the Meeting of 2007 Telecommunications Industry Devel- opment and Policy Announcement convoked by Ministry of Information Industry of China(MII)on Mach 20,2007,Deputy Minister Lou Qinjian presented six tasks that will be launched thoroughly this year and pointed out we shall take the scientific viewpoint of development as our guide and comprehensively put into practice the strategic requirement of creating a harmo-     

Telecommunications regulation in the states

The author presents an article which supports legislation that would foster collaboration between the FCC and the states of the USA in the regulation of the telecommunication industry, but which refrains from preempting state authority during the transition to competition     

论既有住宅建筑光缆入户技术和工艺的创新——上海“城市光网”技术创新和应用实践之二

当今,为适应三网融合、智慧城市、基础宽带网建设等一系列国家信息化发展战略的要求,各电信运营商已全面开展以光纤接入替代原有铜线接入的宽带网络改造工作.然而,FTTH的建设和发展是一场革命,涉及一系列新技术和新问题,在规模部署中面临了诸多技术难关需要攻克,其中ODN是FTTH建设和改造中的重点和难点,尤其是如何解决既有住宅建筑内的光缆入户问题.本文从既有住宅建筑光缆入户场景分析入手,围绕如何破解光缆入户难题,在光纤/光缆、光器件、入户器材的选型以及光缆入户施工方法和工艺等方面作了全面的论述.     

电视综艺节目优化创新路径探索

制作优良的电视综艺节目可以丰富人们的生活.近年来,我国综艺不断自主创新,出现了越来越多优秀的电视综艺节目.电视综艺节目创新工作涉及较多的专业知识,如何把控文化体系和国民习惯等方面的核心特点尤为关键,这也是确保综艺节目有良好收视率和传播效果的关键,必须给予充分的重视.基于此,从内容、形式及营销三个方面分析论述我国电视综艺...     

Telecommunications services in the next decade

In this paper, the authors present their views concerning what types of telecommunications services are likely to come into existence or become widespread during the next decade. The paper is organized in terms of fundamental customer needs which those services should help to satisfy. In particular, the following categories of needs are considered: i) Information Productivity, ii) Cost-Effectiveness and Control, iii) Telemarketing, iv) Media and Protocol Conversion, v) Entertainment, and vi) Telecommunications Ubiquity. Throughout the paper, the special role of ISDN (Integrated Services Digital Network) is highlighted. It is pointed out that ISDN provides generic capabilities--a standardized digital interface, wider bandwidth, and powerful, out-of-band signaling and control--which facilitate the construction of a wide variety of new services. Finally, after discussing many potential new services in detail, the authors summarize some of the major trends which seem certain to characterize the changing face of telecommunications services in the next decade. Among these are: wider bandwidth, more data and digitization, multimedia capability, services "on demand," and internationalization. The authors also briefly discuss network-based versus CPE-based services and the likely roles of public versus private networks.     

电信行业的风险评估

电信行业一方面提供大量的运营业务,同时作为信息产业的基础设施,其在日常生活中的地位越来越得到重视。随着大量的网际互联互通,电信运营商的安全也日益引起人们的普遍关注。电信行业的安全建设已经不仅仅关系到其自身的发展,也直接关系到运行在其上的各行各业应用的发展和正常运行。大量的安全事件表明,做好电信行业的安全建设工作已经成为迫在眉睫的任务。那么何谓“安全”？电信行业又该如何做好安全建设？所谓“安全”,是采用主动或被动的各种方法,使得企业不受威胁,没有危险、危害和损失。一般来说,企业安全的目的包括以下几…     

加快电信创新转型促进又好又快发展——2007年电信业发展与政策通报会隆重召开

在3月20日信息产业部召开的“2007年中国电信业发展与政策通报会”上,娄勤俭副部长重点阐述了今年要深入开展的六项工作,指出要深入贯彻科学发展观、落实构建和谐社会战略要求,按照全国信息产业工作电视电话会议的部署和要求,推进电信业又好又快发展,为调整经济结构、转变经济增长方式、建设社会主义新农村、加快教育科技文化等社会事业发展提供有力的支撑和服务。回顾2006年中国信息产业发展状况,娄勤俭指出,信息产业继续保持快速协调健康发展,实现增加值1．52万亿元,占     

关于企业专网组建方式的探讨(上)

本文在对用户需求作了分析的基础上,对目前一些适合用户组网的新技术进行了讨论,给出了各种新技术用于组建专网的优缺点。     

关于企业专网组建方式的探讨(中)

5 基于隧道的VPN VPN（Virtual Pivate Network）是指在公用网络上（如Internet、帧中继、ATM等）构建用户的内部网络,其效果如安全性、地址空间等和用户专用网络一样。伴随着Internet在全球的快速发展,特别是近一两年以来VPN技术的成熟,使得VPN在Internet上获得了广泛的应用。据专职工业分析的公司Forrester Research预测,整个电子信息安全市     

Telecommunications in the 1994 Winter Olympic Games

This article describes the planning (including the technical and administrative preparations) as well as the execution of the telecommunications services at the Lillehammer 1904 Winter Olympics. The regulator's role is discussed as well     

俄罗斯电信管理概况

本文主要介绍了俄罗斯联邦通信与大众传媒部在电信管理方面的工作内容及其负责部门的相关情况.     

Introduction of Wide-Band Communications in the Telecommunications Network

An increasing demand for digital wide-band business communications has been emerging as a new driving force in the evolution of the telecommunication network. In parallel with this demand, new transmission, multiplexing, and switching technologies are becoming available to support the implementation of attractive end-to-end wide-band services. This paper looks at the application opportunities of wide-band technologies in the telecommunication network for both near and longer term use, and discusses key implementation and evolution issues. The paper also defines a wide-band channel structure plan as a basis for wide-band ISDN standardization.