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A data retransmission method and device

A data retransmission and retransmission technology, which is applied in the field of data processing, can solve problems such as unreliable connection, affecting data retransmission efficiency, packet loss, etc., and achieve the effect of improving efficiency

Active Publication Date: 2021-06-29
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, UDP is a connectionless and unreliable protocol, and packet loss may occur during transmission. In some cases, the sender needs to retransmit the data content of the previously lost packet.
[0004] For data retransmission, the existing technology is to feed back to the upper application layer for processing, and the application layer determines how to perform data retransmission. The additional signaling overhead will undoubtedly affect the efficiency of data retransmission

Method used

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  • A data retransmission method and device
  • A data retransmission method and device
  • A data retransmission method and device

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Embodiment Construction

[0040] Embodiments of the present application are described below in conjunction with the accompanying drawings.

[0041] Since UDP is a connectionless and unreliable protocol, packet loss may occur during transmission. In some cases, the sender needs to retransmit the data content of the previously lost packet. For data retransmission, the existing technology feeds back to the upper application layer for processing, and the application layer determines how to perform data retransmission. The extra signaling overhead undoubtedly affects the efficiency of data retransmission.

[0042] Therefore, the embodiment of the present application provides a data retransmission method, which is applied to a UDP module. In different application scenarios, the same UDP module may have different types. For example, in some application scenarios, UDP module a sends UDP packets to other UDP modules or other modules, then the UDP module a can be regarded as a UDP sending module in this scenario...

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Abstract

The embodiment of the present application discloses a data retransmission method and device. The UDP sending end module saves the UDP message sent by itself through the buffer interval, so when the first error message is obtained from the receiving end, it can be stored in the buffer interval. Determine the reason why the UDP packet is discarded by the receiving end based on the original packet. If the first UDP message in the first error message is inconsistent with the second UDP message corresponding to the identifier in the buffer zone, the UDP sending end module can consider that the transmission error is caused by UDP itself, so it can resend the correct message to the receiving end. The text is the second UDP packet to complete data retransmission. It can be seen that the data retransmission scheme of the present application does not require application layer assistance in the process of data retransmission, and the UDP sending module directly determines whether to retransmit data, which improves the efficiency of data retransmission.

Description

technical field [0001] The present application relates to the field of data processing, in particular to a data retransmission method and device. Background technique [0002] With the rapid development of network technology, User Datagram Protocol (UDP) is used in more and more occasions. Compared with Transmission Control Protocol (TCP), it has the advantages of simplicity and fast transmission. It replaces TCP in more and more scenarios. [0003] However, as UDP is a connectionless and unreliable protocol, packet loss may occur during transmission. In some cases, the sender needs to retransmit the data content of the previously lost packet. [0004] For data retransmission, the existing technology feeds back to the upper application layer for processing, and the application layer determines how to perform data retransmission. The extra signaling overhead undoubtedly affects the efficiency of data retransmission. Contents of the invention [0005] In order to solve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L29/06
CPCH04L1/0023H04L69/164
Inventor 马志超
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD