lower layer protocol meaning in English

低层协议

Lower layer protocol forthe q3 and x interface
Q3和x接口的低层协议框架
Terminal equipment . syntax - based videotex lower layer protocols using packet mode access over the public switched telephone network
终端设备.在公共交换电话网络上使用文件包方式存取的基于语法的电视电文低层协议
Terminal equipment ; syntax - based videotex lower layer protocols using packet mode access over the public switched telephone network ; english version ets 300221 : 1993
终端设备.使用公共交换电话网络分组方式存取的基于语
The terminal scheme using the separate component emphasizes to analyse the family of gsm lower layers protocol ; the scheme using integrated chip that have all faculty of transmitting sm , we only need extend a serial port to connect with scm system or the pc
其中分离器件短消息终端设计方案主要分析用户终端必须完成的gsm底层协议族，及其管理流程；模块化设计方案使用集成gsm引擎模块，通过串口扩展，使之成为能与单片机系统、 pc机进行连接的通信终端。