You enable lower granularity for the retransmission timer for this connection and resend the packet.
您为这个连接启用了更低粒度的重新传输计时器，并重新发送数据包。
If the ack is from the expected node, the retransmission of the packet is cancelled.
收到一个应答时调用。如果应答是期望的节点，将取消数据包重发。
We set up a system for packet transmission and transmission control, and propose a layered retransmission error control mechanism based on immediate feedback.
在立即反馈的基础上提出了一种基于分层重传的差错控制机制。
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