数字分组数据网 meaning in English
cdpd
Examples
- 1 ) realization of software packet embedded in m - es and md - is respectively to accomplish main function of mdlp , including assignment of tei ( temporary equipment identifier ) , establishment of multiple frame operation , framing , flow control and error - free transmission of packets , is detailed . 2 ) a test model is established to evaluate the robustness and stability of mdlp and verify the validity of software packets . 3 ) according to the design of radio modem construction used in m - es , the modules of interface between data terminal equipment and radio modem are achieved to enable transmission of short message and continuous pseudo - random bit stream via rs232 uart
本文首先概述了蜂窝数字分组数据网的结构和空中协议，详细分析了移动数据链路协议，并在此基础上，重点叙述了以下方面的工作： 1 )设计并完成了分别应用于m - es和md - is端无线控制器的两套程序实现数据链路层的主要功能，包括分配临时设备号、建立链路、组帧和面向连接的服务保证分组正确无误地传输，并进行适当的流控； 2 )建立测试模型测试移动数据链路协议的可靠性和稳定性，证明了程序包的效用； 3 )根据cdpd系统无线调制解调器的软硬件总体设计方案，完成了接口模块，实现了rs232异步串口通信，使用户可以根据需要发送短消息或连续的伪随机比特流； 4 )在tms320c54x的软件、硬件仿真平台上，建立了cdpd试验模型，实现了cdpd系统的mdlp基本功能。