导　　师： 郑扣根

学科专业： 081203

授予学位： 硕士

作　　者： ;

机构地区： 浙江大学

摘　　要： 该论文以开发第三代移动通信系统cdma2000中的核心设备pdsn (分组数据服务节点)为背景,讨论了cdma2000通信系统以及嵌入式操作系统的现状及发展趋势,利用linux平台实现了pdsn系统的接入测试平台,不仅完成了对pdsn系统的测试目标,而且有力的尝试了利用linux开发企业级别的通讯设备嵌入式系统.论文第一章首先概述了第三代移动通信发展的情况,然后第二章介绍了嵌入式系统的发展情况,比较了老牌的嵌入式系统vxworks以及嵌入式linux的优缺点.第三章介绍了接入测试平台在整个cdma2000网络中的位置,第四章介绍了接入测试平台和pdsn之间的接口,然后具体描述了如何利用linux平台实现接入测试平台的主要功能,以及实现难点和相关的一些技术细节.最后是一点感想和展望. With the development of the 3G wireless communication technologies,we are required much more to develop communication devices,especially the software. And with new development of embedded system,the core of software in communication devices,Linux joins in the competition as a system development environment with its special strength. Currently,it's more and more popular to use Linux as an embedded system in developing communication devices. But for some reasons in history,some traditional embedded systems,such as Vxworks,psos,are still playing a main role in some large enterprise communication equipments. For an instance,the PDSN is also developed in the Vxworks embedded system. However,Linux has its own features. This paper is made in the background of the development of PDSN /(packed data service node/),the core component of CDMA2000 system. And we discussed the current and future situation of CDMA2000 communication system and embedded systems. Also,we utilized the Linux platform to apply the testing platform of the accessing into PDSN. This platform not only fulfilled the testing goals,but also took it as a trial of developing communication embedded OS on the Linux platform. This paper describes the situation of the third generation communication system in first chapter,hi second section it introduces the development of embedded systems,and the results of comparing Vxworks and embedded Linux. And it describes the position of the testing platform hi CDMA2000 network in third chapter. In the forth chapter it details the interface between the testing platform and PDSN system and how to implement the access-testing platform under Linux. Last section figures out a conclusion.

关 键 词： 嵌入式系统 分组数据服务节点 操作系统 系统 移动通信 接入测试平台

分 类 号： [TN929.533]

领　　域： [电子电信] [电子电信]