网络单元

SDH网络单元时钟的研究

Research on SDH Network Element Clock

SNSP具备软交换体系结构所要求的信令特征，方便网络单元的活性化。

SNSP satisfies the requirements of soft-switch architecture and facilitates the network element activity .

基于Petri网的分布式网络单元流量优化

Traffic optimization for distributed network model based on Petri nets

这个模型描述了适用于SDH网络单元的净负荷配置功能的被管理对象类别及其特性。

This model describes the managed object classes and their properties for the Payload Configuration function as related to SDH Network Elements .

该方案由指挥监控中心系统、安装在每辆车上的移动系统、GPRS通信网络单元及车辆信息管理系统4个部门构成。

Scheme this command control center system , install movement system , GPRS grid cell and vehicle information management system at each car form .

SDH由SDH网络单元组成，其传输技术基础是帧结构，其网络功能包括一般性管理、故障管理、性能管理、配置管理、安全管理。

SDH is made from SDH network unit . Its basement of transmission technology is frame structure whose net functions include normal management , trouble management and property management and so on .

提出了一种基于光线路终端（OLT）的接入允许控制（CAC），能够在各光网络单元（ONU）之间合理分配上行资源。

A kind of call admission control ( CAC ) based on OLT is proposed . It can rationally allocate up-link resources between ONUs .

文中还阐明了OLTE、ADM、DXC等三种基本SDH网络单元的功能和SDH同步帧结构。

Functions of three kinds of basic network elements ( OLTE , ADM , DXC ) and SDH synchronous frame structure are explained .

进一步定义了在网络单元（如OXC，标记交换路由器LSR（LabelSwitchRouter），TE管理器）之间进行交互的控制消息。

Next , it defines the control messages exchanged between network components such as OXCs , routers / LSRs , and the TE manager .

本文主要研究的是该项目的子项目&光网络单元（ONU）的设计与实现。

This paper is an important part of this project , which is the design and implement of optical network unit ( ONU ) of the EPON .

这个模型描述了适用于性能监视功能的被管理对象类别及其特性，建议G.784给出了与SDH网络单元相关的性能监视功能。

This model describes the managed object classes and their properties for the performance monitoring function , as defined in Recommendation G.784 and as related to SDH Network Elements .

该方案不仅增加了系统容量，而且能够容纳更多的光网络单元（ONU），便于光接入网从FTTC，FTTB向FTTH发展。

The scheme increases system capability and contains more optical network units ( ONUs ), which promotes optical access network to evolve from FTTC or FTTB into FTTH .

对WCDMA和WLAN的漫游接入场景进行了深入分析，对漫游接入的实现模型、模型中的网络单元及其功能、相关参考点、分层次漫游的基本原则和漫游计费的实现进行了讨论。

I then fatherly analyze the roaming access scene of WCDMA and WLAN , and discuss the reality model of the roaming access , network unit and its function in the model , correlative reference nodes , the basic discipline of multi-layer roaming and roaming charge .

公交管理调度系统由指挥监控中心系统、安装在每辆车上的移动系统、GPRS通信网络单元及信息管理系统4个部门构成，本文重点完成指挥监控中心的设计和实现。

The public transportation management dispatch system by the direction monitoring center system , installs on each vehicle motion system , the GPRS correspondence network element and the information management system 4 departments constitutes , this article completes the direction monitoring center with emphasis the design and the realization .

由于接入网的成本决定了它的推广和应用，光网络单元（ONU）又是WDM-PON的主要组成部分之一，因而对WDM-PON中ONU的实现方法的研究有着重要的意义。

Due to the cost of the access networks determine its popularization and application and Optical Network Unit ( ONU ) is the main component of WDM-PON , the realization method of ONU in the research has the vital significance .

FTTH是光纤接入网发展的最终形式，运营商的光纤直达用户家中，通过光网络单元（ONU）连接各种终端设备，向用户提供多种多样的电信业务。

FTTH is developing optical access network in final form , operator of the fiber to the home , by the optical network unit ( ONU ) connected to various terminal equipment , to provide users with a variety of telecommunication services .

这对光网络单元（ONU）的设计及与光线路终端（OLT）的通信提供重要依据。

The software of management and control in GPON system and the technology of operation management maintenance are mainly discussed , which is the important reference for designing the optical network unit ( ONU ) and communicate with optical line terminal ( OLT ) .

为了避免多个ONU发送冲突，实现用户端设备的时延补偿和自动加入，本文采用绝对时标来补偿不同光网络单元（ONU）往返时间的差异，完成其往返时间的计算和动态测距。

To avoid several ONUs transmit collision and realize the ONU 's plug-and-play function , absolute timestamp was used in the round trip delay compensation design , thus calculation of the round trip time ( RTT ) and ranging process can be easily done on timestamp bases .

论述了由这种网络单元构成的网络中向量自动位移过程和原理。

Then the automatic vector-displacement principles and process are discussed .

基于最可靠路的网络单元重要度研究

Importance of Network Cells Based on a Most Reliable Path

基于风险理论对共享网络单元的业务重要性进行了评估，评估结果能够反映网络脆弱性的分布情况。

The risk theory based importance assessment of shared network elements is provided .

用于网络单元时钟的压控石英振荡器

Voltage Controlled Quartz Oscillater for Network Unit Clock

三极管双口网络单元[y]参数表的简便编制法

A Simplified Method for Drawing Up the [ y ] Parameter Tables of Transistor Two-Port Network Units

通过适当变量变换，在相同网络单元数情况下，大大提高预测精度。

By varying suitably variables , a high degree of accuracy was received at the network of the same units .

动态带宽分配分类的主要分支是：授权分配、授权调度以及光网络单元下的队列调度。

The main branches of my classification of DBA are : grant sizing , grant scheduling , and optical network unit queue scheduling .

建立了路由选择模型，给出了模型求解方法，并对网络单元重要度进行了分析。

A routing model is established and the method to solve the model is given , also the importance of network unit is analyzed .

并用此分析求解一般气体辐射条件下火焰炉的辐射热交换问题，得到了用文献[1]的网络单元不能导出的传统法的结果。

The obtained results can 't be derived by radiation network unit in the literature and are the same as those by the traditional method .

为了降低光网络单元的成本预算，我们对下行的光载波进行了上行传输开关键控信号的重调制。

We also realize wavelength remodulation for carrying upstream on-off keying ( OOK ) data to reduce the cost budget at the optical network unit .

质量交换网络单元和换热网络单元确定了质/热交换过程，它们可以看成是集成算子，针对不同的集成规则可以建立不同的算子。

While the mass / heat exchanging network unit defines the mass / heat exchanging connection , which can be described as operator for process integration .

提出了由数码相机和网络单元组成的网络相机的理念以及基于此的可视化全程监控系统的设计。

Referring to the monitor system of expressway , this article puts forward the theory of " network camera ", which is composed with digital camera and network unit .