Based Linux Pdsn System Access Test Platform To Achieve

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.