多样化接入模式推动宽带提速

近年来,我国对于宽带提速工程的建设力度不断加强,工信部连续两年出台了宽带提速的相关政策建议,而三大运营商也积极推动了宽带网络的改造升级。今年8月份,国务院正式出台＂宽带中国战略＂,为我国宽带网络的建设给予了一定程度的政策扶持,将宽带建设上升至国家战略高度,我国宽带网络的建设即将迎来新的篇章。FTTH机遇与挑战并存自去年以来,中国电信与中国联通大力推动FTTH的建设工程,     

宽带信息化小区建设

对于普通的用户来说,宽带网络的概念并没有实际的意义,用户真正感兴趣的是宽带能够带来什么样的服务。在宽带建设的初期,各个电信公司将注意力集中在宽带网络的基础建设上,与此相比宽带内容建设发展较慢,造成了网络建设投资巨大但用户稀少的局面。目前大家已经意识到宽带内容,尤其是宽带信息化小区服务内容的重要性。以下将介绍针对信息化小区的几项宽带业务：     

我国宽带测速平台建设思路与规划

文章通过研究全球宽带测速平台的建设经验,形成我国宽带测速平台的建设思路,最终给出我国宽带测速平台的建设规划。     

CCSA举办FTTx技术标准暨规划设计与实践研修班

2010年4月,工信部、国家发改委等7个部委联合印发《关于推进光纤宽带网络建设的意见》,要求充分认识光纤宽带网络建设的重要性,加快光纤宽带网络建设,制定和完善光纤宽带网络建设的配套措施。6月,我国三网融合方案出台,     

以智慧城市建设为契机推动宽带中国

通过对智慧城市建设实际工程经验的总结和对宽带中国相关文件的分析,研究了智慧城市建设和宽带中国之间的关系,指出智慧城市和宽带中国在基本原则上相同,即同样注重城乡一体、应用水平、产业链和安全保障,并对其简单做了相关阐述,智慧城市和宽带中国之间相互依存和互补,不论是关注哪方面的建设,都应该认识到智慧城市是宽带中国的高层应用,宽带中国是智慧城市的建设基础,以智慧城市建设为契机,是以需求为引导推动宽带中国建设的有效方式。     

后发运营商宽带网络建设精确选址模型研究

通过综合考虑网络建设与市场发展两方面的因素,建立了一套宽带网络建设的精确选址模型,利用此模型解决宽带后发运营商在宽带网络建设过程中存在的部门沟通不足、网络建设选址存在盲目性、宽带网络建设投资效益不理想等问题.     

移动宽带网络建设和业务发展的相关研究

从介绍移动宽带相关技术出发,分析了当前热门的移动宽带技术的关系和各自定位,并结合移动宽带网络建设和业务发展的经验与教训,对移动宽带网络建设和业务发展提出了具体建议,可为国内外电信运营商的移动宽带网络建设和业务发展提供参考。     

传统电信公司的宽带业务建设

展望了宽带发展的现状,分析了传统电信公司在宽带市场竞争中的优势,并总结了传统电信公司宽带业务建设的原则,在此基础上提出了一种宽带业务体系建设方案。     

CATV宽带IP的网络建设

本文讨论了ＣＡＴＶ建设宽带ＩＰ网络的优势,ＣＡＴＶ宽带ＩＰ网络的建设原则和设计原则,ＣＡＴＶ宽带ＩＰ网络开放的业务,详细讨论了ＣＡＴＶ宽带ＩＰ网络的建设。     

家庭宽带共建共享建设模式探讨

为更好地进行家庭宽带规划建设,响应国家通信工程共建共享的策略方针,进行了家庭宽带建设模式的分析和研究,结合实际案例小区站点实际预算数据进行比对,分析不同共建共享建设模式下的优劣势,旨在为建设单位提供适合其建设的家庭宽带共建共享参考模式,寻求以最经济、最合理的方案,快速满足客户开通家庭宽带业务需求及后期家庭宽带网络维护的需要。     

全球宽带接入市场发展分析

在过去的一年中,全球宽带接入用户仍保持快速增长的势头,开展宽带接入业务的国家和地区的数量不断增加,宽带普及率和业务速率不断提升,分析了全球宽带接入市场的用户发展情况以及不同区域市场的发展特点,在此基础上对未来全球宽带接入市场的发展趋势进行了预测。     

2001年全球DSL发展回顾

DSL作为一种大众化的宽带接入技术,已在所有发达国家和大多数发展中国家得到推广应用。到2001年第二季度,亚太的用户数首次超过北美,成为世界上最大的市场。一般来说,住宅用户的比例高于商业用户;在DSL发展较快的地区,住宅用户比例更高些;而在DSL发展较慢的地区,商业用户较多。目前各国普遍采用的推广措施主要包括:建立专门的宽带门户网站、与ISP捆绑接入、为一定服务期限的用户打折、为现有的电话用户打折、免费提供支持DSL的计算机,以及提供家用网络业务等。     

Broadband Wireless Access Solutions - Progressive Challenges and Potential Valueof Next Generation Mobile Networks

The growth in mobile communication will accelerate over the next years. Today most of the mobile subscribers use cellular services only. But this will change in the near future towards broadband wireless access services like WiFi and WiMAX. This paper describes a fundamental overview of the broadband wireless access technologies and outlines the market view, major trends and introduces OFDM technologies. New developments for integration of broadband wireless access into the operators' infrastructure are also discussed.     

通信设备市场回升势头得到巩固

2011年,全球电信设备市场规模约829亿美元．同比增长3．9％,近三年来首次出现正增长,市场回升势头得到进一步巩固。     

Energy-efficient communication networks for improved global energy productivity

Recently, a lot of effort has been put into research and development of energy-efficient devices and systems and into optimization of the network infrastructure with regard to energy consumption. On the one hand, reducing total power consumption of global communication networks has become an imperative and an important step towards the future highly energy-efficient Internet. On the other hand, capacity and performance of the Internet must be continuously improved in order to meet the high requirements set by the continuously increasing of both the number of broadband subscribers and the amount of user traffic. Thus, only a highly energy-efficient and high-performance network infrastructure designed to efficiently support advanced applications and services for improving energy productivity in many other branches of business and society can significantly contribute to global energy savings. This paper briefly discusses potentials and options for achieving such an energy-efficient network infrastructure. Some examples of software applications and services for global energy savings are briefly reviewed. The aim of this paper is to draw attention to the need for a holistic approach to evaluate energy efficiency and to improve the global energy productivity through the use of high-performance and energy-efficient networks, services and applications.     

解决远距离ADSL开通方法

本文对远距离ADSL用户开通提出一些创新的方法,给宽带市场发展创造了新的机会.     

Bandwidth provisioning in ADSL access networks

We consider an ADSL access network consisting of subscribers, digital subscriber line access multiplexers (DSLAMs), metro Ethernet switches and a broadband remote access aggregation server (BRAS). We obtain expressions for dimensioning the access network in the upstream direction. Specifically, we show that the bandwidth required at each DSLAM, metro Ethernet switch, and BRAS can be expressed as an exponential function of the subscribers in a log scale when the number of subscribers does not surpass a certain value. After this value, it grows linearly as a function of the subscribers. Copyright © 2009 John Wiley & Sons, Ltd.     

Migration to broadband ISDN

The current state of telecommunications in Japan is briefly discussed, with particular reference to broadband services. Experience with the migration from the analog telephone network to the present narrowband integrated services digital networks (ISDN) is described. Three strategies for the transition from narrowband ISDN to broadband ISDN are examined. The market-driven strategy is to replace existing metallic subscriber loops with optical media, wherever possible, even if only narrowband services are required, with the expectation that these subscribers will eventually use broadband services. The service-oriented strategy entails putting into place a flexible and multipurpose platform that would also allow HDTV distribution and bidirectional communications. Early installation of such a platform would allow for the early announcement of broadband services, which would in turn stimulate demand. The benefits and drawbacks of each of these strategies are discussed. The advance-investment strategy is to press ahead with the introduction of optical subscriber loops to accelerate technological innovation, even if the cost is somewhat high. Other issues that are important to the migration of broadband ISDN are noted     

Adaptive power allocation and call admission control in multiservice WiMAX access networks [Radio Resource Management and Protocol Engineering for IEEE 802.16]

To achieve a successful broadband wireless access solution, the IEEE 802.16 subcommittee has released a series of standards for WiMAX (worldwide interoperability for microwave access). From a technical viewpoint, WiMAX is a feasible alternative to the wired Internet access solutions such as cable modem and DSL. Nevertheless, from the commercial viewpoint, whether the promise of WiMAX will be materialized still depends on its revenue rate to telecom operators and its service quality to the subscribers. In such a context, this article addresses two resource management mechanisms in WiMAX access networks, that is, adaptive power allocation (APA) and call admission control (CAC), from the perspectives of both service providers and WiMAX subscribers. APA emphasizes how to share the limited power resource of base station among different WiMAX subscribers and further influences the access bandwidth of each subscriber; CAC highlights how to assign a subscriber's access bandwidth to different types of applications. Moreover, to build a WiMAX access network, APA and CAC have to work cooperatively to provide cross-layer resource management. In this article we focus on the OFDMA-TDD system, which allows high spectrum-utility efficiency on uplink and downlink channels in the asymmetric scenario of "lastmile" Internet access. We conclude the article with an optimization strategy to balance service provider's revenue and subscriber's satisfaction