针对通用移动通信系统(UMTS)非接入层呼叫连接协议,提出一种基于WinCE嵌入式系统的实现方案。该方案通过WinCE多线程和互斥体机制架构程序框架,以函数指针数组方式实现有限状态机的状态转移,利用WinCE消息队列机制实现原语和消息的传递,并有效地进行内存管理。实践表明,该设计方案具有编程效率高、实时性强的特点。 Aiming at the non-access layer call connection protocol of Universal Mobile Telecommunications System (UMTS), an implementation scheme based on WinCE embedded system is proposed. The program through the WinCE multi-threaded and mutex architecture framework framework to function pointer array finite state machine state transfer, the use of WinCE message queuing mechanism to achieve primitive and message delivery, and effective memory management. Practice shows that the design has high programming efficiency, real-time characteristics.