General Packet radio service (GPRS) is a Packet oriented mobile data service available to users of the 2G cellular communication systems global system for mobile communications (GSM), as well as in the 3G systems. In the 2G systems, GPRS provides data rates of 56-114 kbit/s.
标签: service Packet available oriented
上传时间: 2013-12-20
上传用户:evil
General Packet radio service (GPRS) is a Packet oriented mobile data service available to users of the 2G cellular communication systems global system for mobile communications (GSM), as well as in the 3G systems. In the 2G systems, GPRS provides data rates of 56-114 kbit/s.
标签: service Packet available oriented
上传时间: 2013-12-04
上传用户:894898248
network scanner used to scan the Packet captured during transmission
标签: transmission captured network scanner
上传时间: 2013-12-13
上传用户:时代电子小智
数据包过滤(Packet filtering)是一个用软件或硬件设备对向网络上传或从网络下载的数据流进行有选择的控制过程。数据包过滤器通常是在将数据包从一个网站向另一个网络传送的过程中允许或阻止它们的通过(更为常见的是在从英特网向内部网络传输数据时,或从内部网络向英特网传输)。数据包过滤类防火墙对所有通过它进出的数据包进行检查,并阻止那些不符合既定规则数据包的传输。
上传时间: 2013-12-31
上传用户:qlpqlq
流算法中的一种:Packet Classification using Hierarchical Intelligent Cuttings
标签: Classification Hierarchical Intelligent Cuttings
上传时间: 2017-07-28
上传用户:dyctj
讨论路由中的lookup及Packet classification
标签: classification lookup Packet 路由
上传时间: 2017-07-28
上传用户:离殇
流分类中的一种算法:Packet Classification Using Multidimensional Cutting
标签: Multidimensional Classification Cutting Packet
上传时间: 2014-12-04
上传用户:天涯
The goal of this thesis is the development of traffic engineering rules for cellular Packet radio networks based on GPRS and EDGE. They are based on traffic models for typical mobile applications. Load generators, representing these traffic models, are developed and integrated into a simulation environment with the prototypical implementation of the EGPRS protocols and models for the radio channel, which were also developed in the framework of this thesis. With this simulation tool a comprehensive performance evaluation is carried out that leads to the traffic engineering rules.
标签: development engineering cellular traffic
上传时间: 2014-01-11
上传用户:Miyuki
The outcome of the 3GPP SAE (system architecture evolution) technical study and specification work is a set of standards that specifies the evolution of the Packet core network for GSM/GPRS and WCDMA/HSPA to an all-IP architec- ture and enables a feature-rich ‘common Packet core’ for radio accesses devel- oped within 3GPP and also by other standardization fora.
标签: Evolved Packet Core SAE and the
上传时间: 2020-06-01
上传用户:shancjb
自动气象站是一种应用于气象部门能自动收集、处理、存储和传输气象信息的设备。数据传输包括有线和无线两种方式,但有线难以满足自动气象站成本,维护,效率要求,随着通用分线无线业务GPRS(General Packet Radio Service)发展成熟,因具有成本低、速度快、永久在线等特点被选用作为自动气象站的数据传输部分。 本文以基于ARM和Linux及GPRS的自动气象站系统为研究对象,以操作系统,计算机体系结构,编译原理,数据结构,软件工程等理论为基础,构建了ARM处理器、嵌入式Linux操作系统、GPRS通讯模块的自动气象站系统。实现了以ARM处理器为主控制器,Linux为操作系统,应用程序进行数据收集,分析,处理,存储,并通过GPRS进行数据传输等功能,并验证了它应用在气象领域的可行性。系统以32位高性能微处理器ARMATMEL9263为硬件核心,以BENQ M23为GPRS模块,在分析GPRS组网方案基础上根据实际情况选择了适合本课题,的公网固定IP方式组网方案,实现终端设备无线连接到Internet进行气象数据传输。以嵌入式操作系统Linux为软件平台,在Linux的交叉编译工具和串口环境下进行应用软件开发。通过设计自动气象站系统硬件和软件,实现终端和上位机的连接,很好地解决了终端的网络连接、网络检测和数据收发问题。 课题通过具体实验测试,各项性能指标已达到设计要求,成功地实现了远距离气象数据传输,为自动气象站提供了一种新型的可靠的无线传输模式。
上传时间: 2013-07-01
上传用户:sz_hjbf