短信的发送需要GSM模块和处理器协作完成，GSM模块与ARM处理器通过串口连接，处理器向串口发送接收AT命令与GSM模块形成通信回路。中文短信的发送采用PDU模式，根据PDU模式标准形成PDU发送包，实现短信发送。本文根据无线电话项目的短信发送模块的实现开发流程编写-Send text messages need to GSM module and processor collaboration, GSM module and the ARM processor through the seri

介绍计算机上实现gsm modem短消息收发的模式，描述gsm modem PDU 模式，包括PDU 模式下的gsm modem模块UCS2 编码、解码原理，以及gsm modem发送与接收PDU 串的编制方式， VB 中的MSCOMM 控件，实现gsm modem短消息收发的核心内容。-briefed on computer modem gsm SMS transceiver model, described GSM modem PDU models, including the PDU mo

GSM移动通信标准GSM0505 详细阐述了无线传输方式。以及各种仿真模型以及参数。-GSM standard GSM0505 illustrates the wireless transmission mode. And various simulation model and parameters.

GSM/GPRS/EDGE Access Stratum (GAS). The protocol stack is based on a dual mode stack (2G and 3G) which easily can be configure single or dual mode during compile time, without any additional code overhead. The Non-Access Stratum (NAS) contains the