GSM-R
GSM-R（GlobalSystemforMobileCommunications–Railway）是一项用于铁路通信及应用的国际无线通信标准。欧洲铁路交通管理系统的子系统使用GSM-R完成列车和调度中心的通信。该系统基于GSM和EIRENE–MORANE，当速度高达500公里/小时（310英里每小...
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1,309
GSM-R 热门资料
查看全部 1,309 份 →本课程的重点是介绍GSM系统的协同工作过程
本课程的重点是介绍GSM系统的协同工作过程，涉及内容包含：呼叫、位置更新、切换、短消息。对流程的介绍突出了移动特征，具体的信令细节本课程不做描述，可以参考ETSI的GSM规范获得更加详细的内容
2013-12-13
38
This is schematic and Gerber files of PCB that is used for GPS tracking device with GSM link. Scheme
This is schematic and Gerber files of PCB that is used for GPS tracking device with GSM link. Scheme has many valuable s...
2013-12-19
88
This is schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grad
This is schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grade system with many f...
2013-12-06
192
m128 接 gsm modem 用pdu 发中文短信 的流程。自己总结的
m128 接 gsm modem 用pdu 发中文短信 的流程。自己总结的，附带源码，仅供参考哦！！
2014-01-04
107
This is a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with Qo
This is a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with QoS mechanisms. The pa...
2014-01-01
128