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TCP (Transmission Control Protocol) retransmission method and device

A timeout retransmission and variance technology, applied in the field of data transmission, can solve the problem of low data transmission efficiency and achieve the effect of improving efficiency

Active Publication Date: 2019-04-02
CHINANETCENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In some cases where the data transmission speed is fast, the terminal can judge whether the data is sent successfully in a shorter time, but at this time the terminal still needs to wait for a long time (that is, after the timeout retransmission time) before resending the data, so , the efficiency of data transmission is low

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  • TCP (Transmission Control Protocol) retransmission method and device
  • TCP (Transmission Control Protocol) retransmission method and device
  • TCP (Transmission Control Protocol) retransmission method and device

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0055] The embodiment of the present invention provides a TCP (Transmission Control Protocol, Transmission Control Protocol) retransmission method, the method can be implemented by a network device, the network device can be a data sending end, such as a server, a computer, etc., and can be installed on the network device There is a process for data transmission, through which the sending end can send data from different transmission links to different receiving ends, and the receiving end can be other network devices or terminals. The network device can include a processor, a memory, and a transceiver. The processor can be used to perform the processing of setting the timeout retransmission duration in the following process, and the me...

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Abstract

The invention discloses a TCP (Transmission Control Protocol) retransmission method and device, which belong to the technical field of data transmission. The method comprises steps: the variance and the mathematical expectation of historical RTT (Round-Trip Time) of a target transmission link are calculated; based on Chebyshev's inequality, according to the variance and the mathematical expectation and a preset probability threshold, an RTT prediction interval of the target transmission link is determined; and the maximum value of the RTT prediction interval is set to be the overtime retransmission time of the target transmission link. Thus, the data transmission efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a TCP retransmission method and device. Background technique [0002] In the process of data transmission in the wireless network, due to network failure or equipment failure, the data transmission may fail. At this time, the sending end needs to resend the data. [0003] The above processing flow can be specifically as follows. The sending end sends data to the receiving end and starts timing. After receiving the corresponding data, the receiving end will return a confirmation message to the sending end. The receiving end can set a timeout period for judging whether the data is sent successfully. If the sending end does not receive the confirmation message returned by the receiving end within the preset timeout retransmission period after sending the data, it can be considered that the data transmission has failed, and the sending end will resend the data to the receiv...

Claims

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Application Information

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IPC IPC(8): H04L1/18
CPCH04L1/1848H04L1/1858
Inventor 孙云峰李永隆吴建国陈建清
Owner CHINANETCENT TECH