VLR

Mark Design The Fast Method in VLR Based on Edge Directions

基于边缘直方图的快速汽车标志识别方法

An Onboard VLR Database Management Method for LEO Satellite Systems

LEO卫星系统星上VLR数据库管理方案

An improved lifelong numbering approach in PCS networks based on HLR / VLR architecture

一种改进的基于HLR/VLR体系结构的终身号码方案

Vehicle-Logo location is a very important step in Vehicle-Logo recognition ( VLR ) system .

车标定位是车标识别系统中至关重要的一步。

The VLR is used when a cellular telephone is not recognized by the local MSC .

当本地MSC不能识别某个蜂窝电话时，就会用到VLR。

An improved method of feature extraction based on edge directions is proposed and applied in Vehicle Logo Recognition ( VLR ) .

提出了基于边缘直方图的一种快速识别方法，对汽车标志可以进行高准确度的识别。

Also , an electronic auction system with multiple auction houses is proposed based on the improved VLR group signature scheme . 4 .

并利用改进的VLR群签名，给出了一个多拍卖行电子拍卖系统。

And , when VLR and MSC ask for HLR data , there must be instant response .

同样，当VLR、MSC向HLR请求数据时，也必须得到及时的响应。

The paper describes mainly the structure and functions of the JPM-I MSC / VLR mobile switching center call handling system .

主要介绍JPM－IMSC／VLR移动交换机的呼叫处理系统的结构、功能描述。

Analytical formulae for the costs of HLR and VLR location updates are derived by resorting to complex analysis .

通过利用复数分析的方法，得到了HLR和VLR位置更新所产生的信令开销。

Visitor Location Register ( VLR ) .

访问者位置寄存器（VLR）。

In current wireless networks , PCS networks based on HLR / VLR gain great success which makes the approach to have real significant meaning .

在当前无线网络运营中，基于HLR/VLR体系结构位置管理的无线网络取得了极大成功，使得研究基于HLR/VLR体系结构的终身号码方案具有非常重要的现实意义。

A new method for VLR user data processing , is put forward . A kind of object-oriented scheme is firstly employed to design VLR database based on main memory database .

库形式设计VLR数据库，通过哈希索引技术将用户数据存储在VLR数据库中，并能对存储在VLR数据库中的移动用户数据进行编辑处理和访问。

It seems that the fully automatic , season long and real time monitoring will be feasible with the development of the vertical-looking radar ( VLR ) .

昆虫雷达技术也逐渐从研究走向实用，已经实现了对迁飞性害虫的长期、自动和实时监测。

And two applications are introduced in this paper . They are IP resource management , and VLR Mobile user data auto backup . They both build on Memory Resident Database .

以这些功能为基础本文介绍了两个移动资源分布式管理的应用，分别是：IP资源管理和VLR用户数据自动备份。

Finally the user data backup mechanism has been detailed designed , and three kinds of recovery solutions to typical errors are discussed based on the analysis of problems existing in the VLR database .

最后详细设计了用户数据的备份机制，并针对VLR数据库中存在问题进行分析，提出了三种典型错误恢复解决方案。

The fully distributed location management strategies , as well as their distributed database ( DDB ) architectures , are quite different from traditional location management strategy and its HLR VLR structure .

分布式位置管理策略及其分布式数据库结构与传统位置管理策略和HLRVLR结构有显著区别。

The proposed algorithm fully uses corresponding information in Visited Location Register ( VLR ) to avoid long-distance signaling cost between GLR and Home Location Register ( HLR ) .

该算法充分利用用户在访问位置寄存器（VLR）中的用户信息，从而避免在恢复过程中GLR和归属位置寄存器（HLR）的长途信令开销。

The author tests the HLR , VLR and Prepaid service by many subscribers and system testing , which makes the mutual communication and roaming of different PHS networks come true .

最后通过系统测试的方法，采用批量用户对归属位置寄存器、访问位置寄存器及预付费业务进行了测试，证实了PHS网络互联互通的实现。

When a user moves about different VLRs far away from its HLR , the system asks for residual authentication data from old VLR or new authentication data from HLR to realize authentication management .

当用户在远离其HLR的不同VLR对应覆盖区域移动时，系统通过向其原VLR索取剩余鉴权数据或向其HLR申请新鉴权数据来实现用户的鉴权管理。

With the continuous increase of subscribers ' number , an abundance of services and a variety of disaster recovery solutions being proposed , higher requirements on VLR capacity and real-time quality are put forward for communication system .

随着用户数量的不断增加、业务的不断丰富以及各种容灾解决方案的提出，通信系统对VLR的容量和实时性提出了更高的要求。

The mobility databases ( HLR , VLR and SGSN ) of WCDMA stores the subscription and location information of subscriber . It plays a very important role in the WCDMA mobility network .

WCDMA移动数据库（HLR、VLR和SGSN）保存着用户的所有签约信息、位置信息，其网络位置十分重要。

To the vulnerability and possible attack , an amendment scheme of 3G authentication and key agreement protocol is presented , which achieve authentication of MS to VLR and secure transfer of message between VLR to HLR .

针对协议的安全漏洞，提出了一种改进的认证与密钥分配方案，解决了对VLR的认证以及网络端信息传输的安全性。

VLR ( Vistor Location Register ) is a very important functional unit in mobile communication network system . The database used for VLR is required high capacity and high real-time quality . Commercial database is usually used in the actual product design .

拜访位置寄存器VLR是移动通信网中的重要单元，要求大容量和高实时性，在实际的通信产品中通常采用商用内存数据库。

The existing location management strategies such as HLR / VLR have to update the HLR of mobile users frequently when they cross the boundary of a LA , therefore , system performance is reduced and system resource is over consumed .

现有的基于HLR/VLR两级数据库结构的位置管理策略在移动用户穿过位置区时，需要频繁的更新移动用户的HLR，系统效率受到了极大的限制，资源消耗很大。

This paper presents an efficient mechanism to realize a well ordered management of user data tables , which can not only insure the efficient recovery operation from HLR / VLR data failure , but also greatly improve the management efficiency of system to users .

提出一种有效的实现机制，使HLR和VLR数据库能实现对用户数据表的有序管理，不仅保证HLR/VLR的错误恢复操作有效完成，而且大大提高系统对漫游用户的管理效率。

The 3GPP authentication and key agreement has two security shortages . One is that it needs a strong secure channel assumption between the VLR and the HLR , and will easily suffer from the active attack after the adversary accesses the channel .

3GPP认证密钥交换协议存在两大安全缺陷：（1）该协议假设在VLR和HLR间的通信信道必须是安全的，因而易遭受攻击者接入信道后的主动攻击；