The technologies of set-card separation and OTA (Over the Air) are both the important measures in mobile communication systems to realize the separation of the wireless services and terminals.
移动通信中手机的机卡分离技术和空中激活技术是实现电信服务与电信终端相分离的重要途径。
By supporting on the platform of wireless network communication combined with audio, visual, data, the port MIS spreads the mobile computer terminals into the operation site of port front.
使得港口经营业务管理信息系统（MIS）在语音、视频和数据三合一的无线网络通讯平台上，将移动计算机终端拓展到港口码头前沿的作业现场。
Secondly system realizes the geographical locating for mobile terminals and information exchanges between subsystems. The paper designs the processes of GPS locating and GPRS wireless communication.
其次为实现系统各移动终端的地理定位和各子系统之间信息交流，设计GPS定位程序流程和GPRS无线通讯程序流程。
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