运营商网络能力开放研究

主要针对运营商近年来逐步完善的网络智能管道能力,提出网络能力对外开放的思路和能力开放平台的体系架构,并以移动互联网能力开放为例,详细梳理网络能力和业务场景,最后提出移动互联网能力开放的平台架构。     

移动互联网智能管道顶层设计和规模商用实践

随着移动互联网时代智能手机的快速发展和用户需求的不断变化,运营商面临着网络拥塞频发、资源分配不均和增量不增收等问题,提出依托PCC架构开展移动互联网智能管道演进网络架构的顶层设计方案,并在此基础上面向网络和市场实现了一系列技术实践应用,取得了良好成效,从而为运营商实施流量经营奠定了基础.     

PCC开放能力应用方案研究

随着运营商迈入4G时代,移动通信由传统的语音、短/彩信业务运营进入流量经营的阶段。如何更好地管控网络并创造价值,成为运营商关注的问题。3GPP中提出的PCC技术,既可以实现VoLTE呼叫策略管控,也可有效帮助运营商实现从哑管道到可控、可管的智能化管道方向演进,从业务、用户、总使用流量、位置/时间、接入类型等多个维度制定多样化的运营策略,从而获得更好收益。本文从移动运营商现有PCC网络架构和管控能力出发,以用户需求类型为导向,探讨PCC开放能力的应用方案,以求对电信运营商融合通信工程的开展提供指导意见.     

面向智能管道的网络能力开放探讨

文章从智能管道的发展需求入手,深入分析和总结了国外电信运营商部署方案,指出网络能力开放和互动将成为智能管道演进的关键阶段,并提出在3GPP PCC(Policy and Charging Control)架构的基础上构建电信网络能力开放平台的解决思路,最后对网络能力调用的应用场景进行了讨论。     

中国电信宽带网络智能管道技术实践与发展

结合智能管道相关的国际标准以及中国电信网络运营商网络发展发展现状,分析了建设智能管道的必要性,并且根据国际规范组织的架构优劣,总结出一套适合中国电信运营商的智能管道构建思路,同时,分析了中国电信现网智能管道及智能管道策略平台的架构和实现,并且根据后续的智能管道技术的发展,探讨了出了中国电信智能管道的后续发展和演进思路。     

华为信息

华为发布uTraffic：华为近日宣布推出网络流量分析系统uTraffic，该产品可实现网络流量、流向分析、网络管道质量监控，助运营商提升管道经营能力uTraffic是基于可扩展分布式架构的网络流量分析系统，通过网络物理拓扑与GIS地图、网络流量的叠加展示．实现流量可视化，协助发现流量拥塞点、     

PCC开放能力应用方案

随着运营商迈入4G时代,移动通信由传统的话音、短/彩信业务运营进入流量经营的阶段。如何更好地管控网络并创造价值,成为运营商关注的问题。3GPP中提出的PCC技术,既可以实现VoLTE呼叫策略管控,也可有效帮助运营商实现从哑管道到可控、可管的智能化管道方向演进,从业务、用户、总使用流量、位置/时间、接入类型等多个维度制定多样化的运营策略,从而获得更好收益。本文从移动运营商现有PCC网络架构和管控能力出发,以用户需求类型为导向,探讨PCC开放能力的应用方案,以求对电信运营商融合通信工程的开展提供指导意见。     

移动互联网环境下的智能管道关键技术

重点论述了移动互联网环境下智能管道的网络架构和关键技术,指出"感知、控制、开放"的智能管道能力将成为运营商网络能力提升的主要技术发展方向,感知是智能管道的基础、控制是智能管道的核心、开放是智能管道差异化服务的主要手段。     

深度内容运营提升移动数据网络价值应用分析

在移动互联网时代,运营商成为管道,各种终端应用划分了大部分市场蛋糕。文章分析了通过深度内容运营提升智能管道价值的应用和系统架构,并针对广告优化管控和定投方面的可行性进行分析,希望可以作为深度内容运营的突破口,为移动运营商提升网络盈利,并提升用户体验和满意度。     

智能控制在网络重构中的应用实现

网络重构已经成为各大运营商战略转型的重点,本文首先分析了网络重构的价值,对网络重构的关键技术进行介绍,提出面向网络重构的云化架构体系,对云化体系架构下智能模块SDN编排器和SDN控制器实现功能进行说明,进而提出网络重构环境下智能控制的应用实现场景。     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

Complete approach to automatic identification and subpixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.