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。
分组: divide into groups数据: data; record; information网: net分组数据网络: packet data networks分组数据网关节点: pdgn packet data gateway node公共分组数据网络: psdn packet switched data network数字分组数据网: cdpd不分组数据: ungrouped data分组数据: group data; grouped data; integrated data未分组数据: ungrouped data分组数据单元: pdu packet data unit分组数据协议: pdpacket data protocol分组数据信道: packet data channel pdch; pdch packet data channel高速分组数据: hspd high-speed packet data优化分组数据: pdo packet data optimised重分组数据项: regrouping data item单元数字分组数据: cdpd celluar digital packet data分类资料, 分组数据: grouped data分组数据服务节点: pdsn分组数据业务信道: pdtch packet data traffic channel分组数据支持节点: pdsn packet data support node蜂窝分组数据系统: cellular digital packet data蜂窝数字分组数据: cdpd cellular digital packet data; cellular digital packet data分组交换数据网: psdn packet switched data network分组交换数据网络: packet switching data network; psdn: packet-switched data network