The set of rules governing the operation of functional units of a communication system that must be followed if communication is to be achieved. 管理某一通信系统的功能部件操作的一组规则，如果要实现通信，必须遵循这些规则。
The major problem of the lunar rover teleoperation is time-delay and the limited data transportation bandwidth between communication of the space and ground. 月球车遥操作中最主要的问题是空间与地面通信中的时间延迟以及有限的数据传输带宽。
