Data transmission method and device

A data transmission method and data technology, applied in the field of network communication, can solve the problems of load, low rate of data packet transmission, etc.

Active Publication Date: 2017-01-04
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a data transmission method and device to solve the problem of unnecessary load on the network caused by the repeated re

Method used

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  • Data transmission method and device
  • Data transmission method and device

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Embodiment Construction

[0085] The data transmission method provided by the present invention will be described in more detail below with reference to the drawings and embodiments.

[0086] An embodiment of the present invention provides a data transmission method, such as figure 1 shown, including:

[0087] Step 101, the sending end performs redundant coding on the data in the current data group to be sent according to the redundancy coding parameters corresponding to the current data group to be sent.

[0088] Step 102, the sending end sends the redundantly coded data in the currently to-be-sent data group to the receiving end.

[0089] Specifically, data is acquired from the buffer as data to be sent currently, and the data to be sent currently is grouped, wherein the data to be sent currently is a UDP data packet to be sent. The redundant coding parameter is used to indicate the redundancy of the data in the current data group to be sent. It can be preset that the redundant coding parameters co...

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Abstract

The present invention provides a data transmission method and device. The method comprises: a sending terminal performs redundancy encoding of data in a data set to be sent at present according to the redundancy encoding parameters corresponding to the data set to be sent at present; and the sending terminal sends the data in the data set to be sent at present after redundancy encoding to a receiving terminal. The data transmission method and device can reduce the packet loss probability of the sending terminal sending data to the receiving terminal, reduce the probability of repeatedly sending data to the receiving terminal and improve the data sending speed.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a data transmission method and device. Background technique [0002] TCP / IP (the English full name of TCP is Transmission Control Protocol, the Chinese full name is Transmission Control Protocol, the English full name of IP is Internet Protocol, and the Chinese full name is Internet Internet Protocol) protocol cluster provides two commonly used transmission protocols at the transport layer , one is reliable connection-based and streaming TCP transmission, and the other is unreliable connection-free and datagram-based UDP (English full name User Datagram Protocol, Chinese full name User Datagram Protocol) transmission. The characteristic of using TCP for network transmission is that the protocol stack ensures reliable transmission, while using UDP, the protocol stack will not be responsible for reliable transmission. The reliable transmission mechanism of TC...

Claims

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Application Information

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IPC IPC(8): H04L1/22
CPCH04L1/22
Inventor 康宇宏
Owner ZHEJIANG DAHUA TECH CO LTD
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