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system系统communication通讯系统 | 邮电通讯系统 2022-08-02 82 0star收藏 版权: . 保留作者信息 . 禁止商业使用 . 禁止修改作品
GSM即全.球移动通讯系统该系统是一种通讯两头或最少一方是处于移动中进行信息交换的通讯系统下面将对GSM的系统结构系统接口系统编号方案系统协议及用户呼叫过程进行介绍

(GSM is the global mobile communication system. This system is a communication system in which both ends of the communication or at least one of them is in motion to exchange information. The following will introduce the system structure, system interface, system numbering plan, system protocol, and user calling process of GSM.)

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