TD-SCDMA/TD-LTE协同优化方法研究

为应对移动互联网带来的新挑战,带动业务收入增长,运营商已经全面开展了流量经营的相关工作。分析了流量经营的典型业务场景,结合智能管道与智能运营双核心模型,提出了一种面向业务的流量经营解决方案,该方案主要由系统组网、系统架构和相关接口构成,并给出了方案的实现机制和流程。工程试点应用结果表明,该方案能有效支撑运营商实现流量经营。     

面向业务的流量经营解决方案研究

为应对移动互联网带来的新挑战,带动业务收入增长,运营商已经全面开展了流量经营的相关工作。分析了流量经营的典型业务场景,结合智能管道与智能运营双核心模型,提出了一种面向业务的流量经营解决方案,该方案主要由系统组网、系统架构和相关接口构成,并给出了方案的实现机制和流程。工程试点应用结果表明,该方案能有效支撑运营商实现流量经营。     

国际运营商流量经营模式变革研究

当前移动互联网迅猛发展,智能终端呈爆发式增长,移动业务层出不穷,为电信运营商带来了巨大流量,但是运营商并没有实现收益的同步增长,电信运营商投入与收入的剪刀差日益扩大。为此,国际运营商纷纷采取不同措施,应对流量的增长,并力图提升流量的价值。本文分析了国际运营商的应对措施,提出了电信运营商流量经营的CTR模型,为国内电信运营商流量经营模式转型提供借鉴和参考。     

实现流量经营的智能管道与智能运营双核模型

为顺应移动互联网的发展趋势,带动业务收入增长,运营商全面推进流量经营的工作势在必行.分析了业界流量经营的典型业务场景,提出了一种实现流量经营的智能管道与智能运营双核心模型,该模型主要由管道控制网元及经营平台网元构成,并给出了模型实现机制.工程试点应用结果表明,该模型能有效支撑运营商实现流量经营.     

移动互联网流量经营分析系统方案研究

结合电信运营商对移动互联网流量经营的实际需求,通过对流量分析目标、系统技术架构、系统功能架构、平台组网方案等方面进行分析,提出移动互联网流量经营分析系统建设方案,该系统可对用户访问移动互联网行为进行分析,从而展开精细化流量经营,提升流量价值。     

移动互联网下运营商数据运营策略的转型分析

面对移动互联网时代移动流量的爆炸式增长,指出了电信运营商数据运营策略转型应对的重要性。首先分析了传统运营商面临的挑战与本身流量数据经营中存在的问题,然后提出了电信运营商数据运营策略的转型应对方案,指出运营商需优化网络,构建大数据挖掘为背景的精细化流量经营。     

移动互联网时代的流量控制和经营

移动互联网时代各种新型数据应用流量爆炸式增长,流量控制和经营成为电信运营商重点关注的焦点议题。本文分析了移动互联网流量控制技术方案,包括无线接入和核心网、IP承载网、IDC流量控制和CDN流量分发,提出了运营商移动互联网流量经营管理措施。     

基于流量经营的电信运营商智能管道构建研究

电信运营商重组后,市场竞争日益激烈,价格战层出不穷,电信行业价值持续走低,电信运营商从话务经营向流量经营转型应运而生.本文指出流量经营已是运营商竞争博弈和价值提升的关键,以智能管道促进流量经营发展势在必行.最后,文章提出从加强基础传输设施建设,锻造面向客户需求的流量分析与运营能力,创新商业模式等方面来探讨基于流量经营的电信运营商智能管道的构建.     

基于cdma 2000 EV-DO过载控制策略的研究

在智能管道和聚合平台之上的"流量经营",目前已成为各大通信运营商全面转型的全新命题。中国电信也顺应形势,深化转型,释放流量价值。其中,空口如何让cdma 2000 EV-DO的流量得到用户的充分使用成为流量经营的关键和难点所在。通过对EV-DO网络的空口过载控制策略进行研究,结合现网流量使用情况分析提出释放流量的优化方案,最后应用于重庆电信EV-DO网络实施验证,得出结论。     

运营商以流量经营策略摆脱“管道化”

当前,国内运营商在流量经营方面已经取得显著成效,然而要彻底摆脱移动互联网时代"管道商"的角色、实现收入利润的有效增长仍然任重道远,需要遵循移动互联网时代的发展趋势和特点,以流量经营为方向,调整各项经营策略,最终实现流量价值的全面提升。在移动互联网时代已经来临之际,电信运营商逐渐被"管道化"。国内的电信运营商为了摆脱这个困境,积极借鉴国外运营商的经验,借鉴互联网企业的运营模式,提出了积极开拓"流量经营"的概念,并逐步开展了流量经营的相关工作。流量经营应运而生     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first     

JOURNAL OF ELECTRONICS(CHINA)

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NEXT GENERATION WIRELESS NETWORKS–ESPECIALLY THE USE OF MILLI-MICROWAVE BANDS

The global bandwidth shortage of wireless communications has motivated the exploration of the naillimeter wave （ram-wave） frequency spectrum for the next generation wireless communications. Recent advances in RF CMOS technology and high speed baseband signal processing technologies have enabled tile extensive research and development of turn-wave wireless communications. The multi gigabit per second data rate of ram-wave system will lead to applications in many important scenarios, such as WPAN, WLAN,back-haul for cellular system. And the frequency bands include 28 GHz, 38 GHz, 45GHz, 60GHz, E-BAND and even beyond 100 GHz. The propagation and the imitation of the RF circuits design in these frequency bands make the directional antennas be inevitable for mm-wave communications.