Based on the performance and features of half-duplex FH radio sets, the data link layer protocol includes Control frame, Information frame and Acknowledgement frame, carries out the ARQ plan which combines the Select Repeat ARQ and Stop-and-Wait ARQ together.
数据链路层的协议，构造了控制帧、信息帧、应答帧，设计了选择重发和停等协议相结合的ARQ方案，支持自适应变速的功能。
参考来源 - 超短波跳频电台的数据传输·2,447,543篇论文数据，部分数据来源于NoteExpress
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