二维码识别:手机新用途

继8月初手机二维条码D M码识别系统正式开通后,中国移动针对个人服务的另一种手机二维条码QR码也已测试完毕,QR码与DM码将各司其职为用户带来便捷的手机条码服务。中国移动人士透露,集团在全国13个省展开的手机条码业务测试已经结束,并于9月全面推广。中国移动手机二维码识别系统正式开通,用户可以通过用手机扫描二维码或输入二维码下面的号码实现快速手机上网。此外,二维码的功能实现还包括名片、短信、文本以及邮件,还可以用手机识别来存储名片、自动输入短信,以获取公共服务信息,天气预报等,实现电子地图查询定位、手机阅读等多种功…     

有线电视用户账单服务提升方案研究与应用

本文介绍了东方有线网络公司的一种有线电视用户账单服务提升方案。该方案通过在机顶盒界面上显示账单二维码,并且逐步实现按照不同场景、频次主动推送账单二维码,可引导用户进行扫码支付,增加用户的缴费途径,提升账单服务质量。     

宽带中国战略下一户多机的研究和实践

随着国家"宽带中国"战略的发布,高接入带宽为一户多机创造了良好的条件。同时,用户个性化需求日益强烈,家庭内手机、PAD、机顶盒、电脑多种终端使用视频服务等宽带业务将成为常态。文章分析一户多机面临的挑战,提出运营商在一户多机时代的应变之道。     

一种用于无线ATM的Turbo码的研究

无线ATM能通过标准的ATM网络应用接口,为多种移动终端提供综合宽带业务的传输和交换。研究了适用于无线ATM的Turbo码,对Turbo码与卷积码的性能进行了比较,并且对不同编码效率下Turbo码的纠错能力进行了仿真研究。     

一种基于Web Portal架构的校园网用户二次认证方案

为了促进校园3G业务与宽带业务的融合,提升客户体验,培养校园用户消费习惯并增加用户手机在网粘性,各大运营商均使出浑身解数,在介绍传统的Portal认证基础上,提出一种基于Web Portal架构的二次认证方案,其原理是利用用户手机号作为宽带上网认账号,手机接收认证系统下发验证码短信,用户凭借手机号码和短信验证码作为上网认证账号及密码,通过这种方式,不仅可以方便为校园用户提供多种宽带融合业务套餐,还可以避免已停机校园用户继续使用校园宽带业务。     

宽带运维“指南针”——华为NetParser宽带运行分析系统助力宽带运营

在宽带接入网运行维护时,如何衡量宽带接入网的运行质量,如何及时、有效地识别出影响业务的告警,如何跟踪和定位用户呼叫过程中出现的问题等一直困扰着宽带接入网运行维护。华为技术有限公司《宽带运维"指南针"》一文针对华为技术有限公司推出的宽带运维"指南针"--NetParser宽带运维分析系统进行了介绍,即N2000NetParser从宽带接入网设备获取用户呼叫日志和设备性能参数,并利用这些参数进行了用户呼叫、业务分布、网络流量和设备性能等项目的质量分析,并提供了业务故障管理和用户呼叫跟踪。该文为宽带接入网运行维护人员在解决以上问题时提供了很好的参考。     

IPTV系统的性能指标

IPTV是一种利用宽带网络为用户提供交互式多媒体服务的业务。其主要特点在于交互性和实时性。通过IPTV业务。用户可以得到高质量的数字媒体服务。可以自由地选择宽带IP网的视频节目，还可以非常容易地将电视服务和互联网浏览、电子邮件收发以及多种在线信息咨询、娱乐、教育及商务功能结合在一起。它的宽带服务模式将形成一个极具前景的产业。目前已有很多设备厂家提供ITPV系统平台和设备。业界公认IPTV业务包含两种基本业务：VOD点播和TV直播。那么，对于IPTV系统的测试亟需进行规范。本文对IPTV系统的这两种基本业务的性能测试进行了简单的探讨。     

大规模IPTV中央存储共享式点播解决方案

一、前言 IPTV是一种利用宽带网络为用户提供交互式多媒体服务的业务．其主要特点在于交互性和实时性．通过IPTV业务．用户可以得到高质量的数字媒体服务，可以自由地选择宽带IP网的视频节目．还可以非常容易地将电视服务和互联网浏览、电子邮件收发以及多种在线信息咨询、娱乐、教育及商务功能结合在一起。这是一个颠覆性的技术，将给电信市场带来革命性的变化，它的宽带服务模式将形成一个极具前景的产业．是最具潜力的增值业务之一。     

一种新型私有多信道UWB MAC协议

媒体接入控制技术的核心问题是如何协调多个用户共用一个信道实现高效可靠传输,即多址接入问题.文章提出了一种新型私有多信道UWB MAC协议.利用码字在逻辑上划分多个信道,且通过码宇与用户节点某些特定信息相联系,私有化了各个节点的控制信道和业务信道.进一步降低了系统碰撞的可能性.提高了系统吞吐量性能.     

浅谈IPTV点播系统的解决方案

IPTV是一种利用宽带网络为用户提供交互式多媒体服务的业务,其主要特点在于交互性和实时性,通过IPTV业务,用户可以得到高质量的数字媒体服务,可以自由地选择宽带IP网的视频节目,还可以非常容易地将电视服务和互联网浏览、电子邮件收发以及多种在线信息咨询、娱乐、教育及商务功能结合在一起。它的宽带服务模式将形成一个极具前景的产业。IPTV业务的发展得益于信息处理技术和内容分发技术的发展。主要包括视频图像编码技术、流化技术(包括MPEG-4/H.264编码技术,MPEG-7、MPEG-21)、DRM(数字版权管理)技术、数据存储及访问技术等。本文主要针对IPTV系统中核心的数据存储及数据访问方面的应用进行了分析与比较。     

Design of spread spectrum multicode CDMA transport architecture formultimedia services

We investigate a new application of the well-known spread spectrum code division multiple access (SS-CDMA) techniques to multimedia services related to the development of the next-generation wireless mobile networks interconnecting with a wireline ATM-based broadband network. Such services allow users to share novel multimedia applications without any geographical restrictions. However, since the mobile radio channel has a fixed limited bandwidth, the traditional SS-CDMA system may not be sufficient to accommodate the variable bit rate (VBR) multimedia services requested by multiple mobile users simultaneously. Moreover, the traffic load at the base station can change dynamically due to the time-varying throughput requirement of these requested multimedia services. To tackle this difficulty, a multicode CDMA (MC-CDMA) technique is proposed to provide multirate multimedia services by varying the number of spreading codes assigned to each user in order to meet its throughput requirement. In MC-CDMA, a spreading code can be used to transmit information at a basic bit rate. Users (video or data) who need higher transmission rates can use multiple codes in parallel. Meanwhile, the maximum available number of codes in the MC-CDMA system is still limited. Hence, a cost-effective dynamic code allocation scheme has then been proposed to dynamically assign an appropriate number of codes to each user for achieving the maximum resource utilization for multiuser multimedia services via the mobile radio channel. Finally, a number of real multimedia titles generated from the well-known MacroMind Director are conducted to evaluate performance     

IP/ATM integrated services over broadband access coppertechnologies

A rich set of broadband access copper technologies is available in the market today, and more are coming out of the laboratories, rapidly moving to standardization. The most likely future scenario will be one where many different technologies coexist. This multi-access-technology paradigm poses an interesting internetworking problem where interoperability and capability to support today's and future user services play a major role in the design of a network architecture. This article begins with an overview of current and new xDSL access technologies to continue describing an access network design that harmonizes the interconnection between PON, xDSL, and native ATM transport technologies. The use of ATM technology for the interface to the broadband access and transport networks is then presented and justified. The article continues studying the protocol architectures proposed for access to network service providers, considered a driver application for broadband access deployment. Finally, different protocol architectures that can provide integrated services support at the user equipment are analyzed     

国外宽带用户感知提升经验借鉴

本文阐述了国外宽带总体发展情况,分析了国外监管机构在提升宽带用户感知方面所采取的主要措施,并以美国和新加坡为例,分析了其宽带用户感知现状。同时研究了国外运营商在宽带业务提供方面的主要做法,从而为国内运营商提高宽带服务质量,提升宽带用户感知水平提出几点建议。     

一种基于家宽网络故障与业务的精准关联技术

在运营商故障监控工作中,OLT退服告警对宽带业务影响范围、家宽实际影响用户数一直是家宽业务关联影响的重要环节,明确OLT退服影响是告警监控重要的目标。提出一种基于家宽网络故障与业务的精准关联技术,将家宽用户信息与告警相结合,实现故障与影响客业务的网络指标自动关联,完成对OLT退服对业务的影响、影响用户精准分析和用户投诉的分析关联,减少用户投诉,提升用户满意度,实现经济效益的提升。     

Broadband and digital ‘content’ in the EU-25: Recent trends and challenges

This paper focuses on recent trends and issues in the EU-25 countries related to one key broadband application area: digital media ‘content’ applications. It draws upon recently completed research addressing current and future uses and applications of broadband in the EU-25 area.

The paper presents key findings from the BEACON project concerning the broadband content trends and issues in the EU-25 countries. First, the paper briefly considers recent literature on broadband and digital media innovations as well as the policy context in Europe, which has an important influence on framing supports for innovation in content and digital media. Next, it addresses a number of key issues that impact upon the creation of content services. These include the high cost of content production and the difficulty of forming attractive business cases given the uncertainties related to user demand, and the IPR and copyright regimes. It will also consider users’ patterns of engagement with broadband content and emerging user applications. Next, the paper discusses whether broadband is reaching a ‘tipping point’, whereby broadband access is becoming the norm and in the next five years we will see the emergence of innovative, dynamic content services. The paper considers whether recent moves by three sets of significant actors (media corporations, the advertising sector, and EC regulators) could be early signs of a tipping point in favour of the creation of and more focused support for broadband content services.     

智能光网络的业务特征和业务构架

在光网络上直接提供宽带、优质、动态、灵活、可控的新型传送业务是智能光网络未来发展的重要方向之一。依托智能化的控制平台、综合化的管理系统，能够充分挖掘光网络的带宽潜力，直接由光域生成各类新型业务，满足多样化、个性化的用户需求。有两类业务提供构架：基于管理的业务提供方案和基于扩展业务平面的业务提供方案。基于业务平面的业务提供方案是智能光网络的重要发展方向之一。     

Factors Affecting Consumer Acceptance Mobile Broadband Services with Add-on Advertising: Thailand Case Study

There are two methods for mobile advertising: SMS and broadband advertisement. Previously SMS is the most common way of mobile advertising. Previous researches on consumer acceptance have been focused on SMS advertisement. This paper aims to identify factors that influence consumer’s intention to accept mobile broadband services with add-on advertising. As theory of reasoned action (TRA) has been widely used to explain user behavioral intension in previous researches, we proposed extended TRA by including six factors for testing adoption of mobile broadband services with add-on advertising: Perceived Value, Contextual Awareness, Trust, Solidarity, Familiarity and Effect. The proposed model has been tested on selected Thai mobile broadband user communities. The results from 61 valid responses during 2 weeks time period found that attitude toward mobile advertising and subjective norms have weak significance on user intention to accept add-on advertising. It is also found that Perceived value has higher significant than other proposed factors. With the proposed model, it is possible for advertisers to create an effective and pertinent mobile broadband advertising.     

Experimental demonstration of multiwavelength optical network with microwave subcarriers

The authors use the unique multiwavelength filtering capability of the acousto-optic tunable filter to demonstrate multiple broadband services with only one fixed-wavelength transmitter and receiver per user in the first experimental demonstration of a multiwavelength subcarrier network.<>     

Multiple-length multiple-wavelength optical orthogonal codes for optical CDMA systems supporting multirate multimedia services

Multiple-wavelength optical orthogonal codes (MWOOCs) with autocorrelation sidelobes and cross-correlation values of both at most one were recently proposed for wavelength-time optical code-division multiple-access (O-CDMA) systems. The codes have cardinality as a quadratic function of the number of wavelengths and find applications in high bit-rate O-CDMA systems with broadband supercontinuum lasers, in which the number of available wavelengths is larger than the number of time slots. To support multimedia services with different bit-rate and quality-of-service requirements, a new class of multiple-length constant-weight MWOOCs with autocorrelation sidelobes of zero and cross correlations of at most one is constructed algebraically in this paper. The performance of these new codes in an O-CDMA system with double-media services is analyzed. In contrary to conventional single-length codes, our study shows that the performance of these multiple-length codes improves as the code length decreases. This unique property supports "prioritization" in O-CDMA.