第三代移动通信系统TD—SCDMA信令测试软件

研制TD-SCDMA系统的信令测试软件是对移动终端开发与测试的支撑，介绍了研制的TD-SCDMA系统的信令测试软件结构以及综合运用ActiveX控件和动态链接库等技术的方法。这些结构和方法广泛适用于通信系统信令测试软件的开发，并能大大提高软件研制和运行的效率。     

TD-SCDMA信令测试软件设计方案

研究TD-SCDMA移动终端一致性测试标准，开发第三代移动通信系统信令测试仪，是解决通信设备互联产生的协议非一致性的重要手段，此外通过信令测试软件进行参数测量与统计，对于网络的维护与化也具有十分重要的意义。首先对信令测试软件进行了功能设计；随后探讨了信令测试软件和数据库的设计；最后研究了信令测试软件的测试问题。     

数据用户在GPRS与TD-SCDMA系统间的切换过程

在GSM/GPRS向TD-SCDMA平滑升级的过程中，不同的网络演进方案将导致系统间业务实现过程有所 不同，使得网间信令的跟踪与测试变得更加复杂，对TD-SCDMA信令测试仪的研发也提出了更高的要求。针对 TD-SCDMA核心网演进过程中的几种典型网络结构，以数据用户在GPRS与TD-SCDMA系统间的切换为例，进 行信令过程的研究与分析，提出了一种TD-SCDMA信令测试仪对相关过程的跟踪测试方案。该方案对研究TD-SCDMA信令测试技术有重要的参考价值。     

TD—SCDMA信令测试软件设计方案

研究TD－SCDMA移动终端一致性测试标准，开放第三代移动通信系统信令测试仪，是解决通信设备互联产生的协议非一致性的重要手段，此外通过信令测试软件进行参数测量与设计，对于网络的维护与优化也具有十分重要的意义，首先对信令测试软件进行了功能设计；随后探讨了信令测试软件和数据库的设计，最后研究了信令测试软件的测试问题。     

TD-SCDMA测试仪中Iub接口实现RLC层信令解码

为了更精确地完成TD-SCDMA测试仪中相关信令的解码测试工作,对TD-SCDMA系统的Uu接口RLC层信令在Iub接口实现的解码进行了深入分析和研究,给出了RLC层的信令消息结构和流程,提出了RLC解码的一种算法,并且应用到TD-SCDMA测试仪中,经调试并实际测试后,得到了预期的良好效果。经过再改进,完全可以满足市场需要。     

TD-SCDMA测试仪中Iub接口实现RLC层信令解码

为了更精确地完成TD-SCDMA测试仪中相关信令的解码测试工作,对TD-SCDMA系统的Uu接口RLC 层信令在Iub接口实现的解码进行了深入分析和研究,给出了RLC层的信令消息结构和流程,提出了”RLC解码的 一种算法,并且应用到TD-SCDMA测试仪中,经调试并实际测试后,得到了预期的良好效果。经过再改进,完全可 以满足市场需要。     

数据用户在GPRS与TD-SCDMA系统间的切换过程

在GSM/GPRS向TD-SCDMA平滑升级的过程中,不同的网络演进方案将导致系统间业务实现过程有所不同,使得网间信令的跟踪与测试变得更加复杂,对TD-SCDMA信令测试仪的研发也提出了更高的要求。针对TD-SCDMA核心网演进过程中的几种典型网络结构,以数据用户在GPRS与TD-SCDMA系统间的切换为例,进行信令过程的研究与分析,提出了一种TD-SCDMA信令测试仪对相关过程的跟踪测试方案。该方案对研究TD-SCDMA信令测试技术有重要的参考价值。     

TD-SCDMA测试仪中Iub接口CDR的合成方案

CDR合成属于网络测试仪的基础功能部分。对TD-SCDMA系统的Iub接口信令进行了深入分析和研究,并以MOC的信令流程为例,提出了在Iub接口上实现消息归类,多协议关联的CDR合成方法,并具体应用到重庆邮电大学通信网与测试技术重点实验室的TD-SCDMA网络测试仪中,效果良好。该CDR合成方案同样实用于WCDMA系统。     

TD-SCDMA测试仪中Iub接口CDR的合成方案

CDR合成属于网络测试仪的基础功能部分。对TD-SCDMA系统的Iub接口信令进行了深入分析和研究, 并以MOC的信令流程为例。提出了在Iub接口上实现消息归类,多协议关联的CDR合成方法,并具体应用到重庆 邮电大学通信网与测试技术重点实验室的TD-SCDMA网络测试仪中,效果良好CDR合成方案同样实用于 WCDMA系统。     

TD-SCDMA移动终端小区选择的实现

根据TD-SCDMA系统的特点,通过对终端高层信令软件、分层结构及其各层功能的分析提出了空闲模式下小区选择的一种实现算法,这种算法能满足各种情况下小区选择的信令流程,实现也简单。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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