It has no standard way of signalling the start and end of a message.
缺乏标准的方式标识一条消息的开始和结束。
Method for transmitting signalling information, master station, mobile station and message elements.
传输信号化信息的方法，发射站，移动站和消息单元。
Method for transmitting signalling information, master station, mobile station and message elements.
传输信号化信息的方法，发射站，移动站和消息单元。
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