Delay determinacy message retransmission method with local cache
A local caching and deterministic technology, applied in the transmission system, radio transmission system, error prevention/detection using the return channel, etc., can solve the problems of low message retransmission efficiency, waste of channel resources, etc. Transmission efficiency, improvement of satellite channel utilization, and the effect of reducing frequency and quantity
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[0044] Embodiment A method for retransmitting a delayed deterministic message with a local buffer. By recording the specific packet loss situation of the message transmission, when a packet loss occurs, the receiving end sends a deterministic retransmission request to the sending end to request transmission loss. Message, the request carries information about one or more lost messages; set a retransmission delay for the newly lost message. When a new message is lost, after the retransmission delay, the receiver sends a request to the sender to transmit a new message. Lost messages: A local buffer is set up at the satellite link receiving end gateway, and when the reverse link ACK transmission sent by the receiving node is lost, the receiving end gateway will resend the message.
[0045] The deterministic retransmission request option is activated through the TCP connection establishment process, the deterministic retransmission request option is located in the option field of the ...
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