Data packet retransmission method, device and equipment

A data packet and retransmission technology, applied in the field of data packet retransmission, can solve the problem of untimely retransmission of data packets, and achieve the effect of improving timeliness and reducing jamming.

Active Publication Date: 2019-09-06
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a data packet retransmission method, device and equipment, which can be used to solve the problem of untimely data packet retransmission in related technologies

Method used

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  • Data packet retransmission method, device and equipment
  • Data packet retransmission method, device and equipment
  • Data packet retransmission method, device and equipment

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0031] Before describing the embodiment of the present application, related terms involved in the embodiment of the present application are firstly introduced.

[0032] TCP: A connection-oriented, reliable, byte-stream-based transport layer communication protocol.

[0033] ACK: A transmission-type control character sent by the receiver to the sender to indicate that the receiver has successfully received a message sent by the sender.

[0034] SACK (Selective ACK, acknowledgment information with selective acknowledgment): A transmission-type control character sent by the receiver to the sender to indicate that a message has arrived out of order. For example, the sending end sends three data packets p1, p2 and p3 to the receiving ...

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PUM

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Abstract

The embodiment of the invention provides a data packet retransmission method, device and equipment. The method comprises the following steps: sending at least one data packet to a receiving end; obtaining a retransmission time interval of each data packet in the at least one data packet; and for the ith data packet in the at least one data packet, when confirmation receiving information of the ithdata packet is not received in the transmission time period of the ith data packet, retransmitting the ith data packet to a receiving end, wherein i is a positive integer. According to the embodimentof the invention, the retransmission time interval is set for each data packet, and if the confirmation receiving information corresponding to the data packet is not received in the retransmission time interval after a certain data packet is sent, the sending end retransmits the data packet, so that the data packet retransmission timeliness is improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of data transmission, and in particular, to a data packet retransmission method, device, and equipment. Background technique [0002] TCP (Transmission Control Protocol, Transmission Control Protocol) provides reliable data stream transmission services through sequence confirmation and packet retransmission mechanisms. The packet retransmission mechanism is a technique for resending a data packet when the sender determines that a data packet may be lost. [0003] The packet retransmission mechanism in the related art is as follows: the sending end notifies the receiving end of the number and serial number of the data packets to be sent before sending the data packets, and then sends the data packets to the receiving end, and after completing the sending of all data packets , the sender calculates the retransmission time interval of the last sent data packet. After the time period...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1678H04L1/1858H04L1/1854
Inventor 王福海杨亚军
Owner TENCENT TECH (SHENZHEN) CO LTD
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