Windows Embedded CE下的GPRS互联网接入实现

Implementation of Internet Access over GPRS in Windows Embedded CE

随着移动通信技术的发展，GPRS的应用非常普遍。基于此提供了Windows Embedded CE设备上的GPRS互联网接入方案。采用RIL（Radio Interface Layer）的实现方式，充分利用了Windows Embedded CE的蜂窝通信架构，实现了GPRS数据业务与电话，SMS，SIM卡管理等应用的更好的集成。同时使用GSM07．10多路复用协议驱动模拟的虚拟串口，提高蜂窝应用的并发性，并采用虚拟串口切换机制保证了PPP连接的正确建立，最后提供了RAS拨号程序的设计实现。

As the development of mobile conununication technology, GPRS is widely used. The paper provides a solution of Internet access over GPRS on Windows Embedded CE devices. The solution is based on RIL （Radio Interface Layer）, which makes full use of the cellular communication architecture of Windows Embedded CE, and implements a better integration for GPILS data service with other cellular applications such as telephony, SMS, SIM manager and so on. In addition, it uses virtual serial ports emulated by GSM07.10 multi- plexer driver, which enhance the concurrency of cellular applications. At the same time, virtual port switch mechanism is used to establish PPP link correctly in RIL based solution, while design and implementation of a KAS dial up program is provided.