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Data transmission method, device and system

A data transmission method and technology of a data transmission device, applied in the field of communication, can solve the problem of inability to accurately judge the loss of data packets and the like

Active Publication Date: 2021-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the receiving end cannot accurately determine whether the data packet is lost in the prior art, this application provides a data transmission method, device and system

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

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Experimental program
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Embodiment Construction

[0036] 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.

[0037] figure 1 is a schematic diagram of the application scenario of the data transmission method provided by the embodiment of the present invention, see figure 1 , a QUIC connection is established between the sending end 11 and the receiving end 12 through a wireless access point. Such as figure 1 As shown, the data transmitted on the QUIC connection between the sending end (that is, communication device A) 11 and the receiving end (that is, communication device B) 12 can be transmitted through at least two paths, and different paths can be based on different wireless access technology, can also be based on the same radio access technology. Among them, the wireless access technology includes but not limited to Wi-Fi (Wirele...

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Abstract

The application discloses a data transmission method, device and system, which belong to the technical field of communication. The method includes: generating a plurality of QUIC data packets, each of which includes a QUIC connection identifier and packet indication information, and the QUIC connection identifiers in the plurality of QUIC data packets are the same; passing the plurality of QUIC data packets through At least two paths are sent, wherein the packet indication information in each QUIC data packet is used to indicate the packet sequence number of the QUIC data packet on the transmission path where it is located. By separately numbering the data packets on the two paths that transmit the data of the same QUIC connection, the receiving end can judge the transmission status of the data packets on each path separately, and it will not be caused by the different transmission conditions of different paths. Data transmission is affected.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a data transmission method, device and system. Background technique [0002] QUIC (Quick UDP (User Datagram Protocol, User Datagram Protocol) InternetConnection, fast UDP Internet connection) is a UDP-based transmission protocol for multiplexing and security protection. When the sending end needs to use a QUIC connection to transmit data, it needs to establish a QUIC connection with the receiving end first, and then process the data to be transmitted to generate multiple QUIC data packets that need to be transmitted based on the QUIC connection. The header of each QUIC data packet contains Carry the data packet serial number, and finally these QUIC data packets are sent to the receiving end in sequence using the established QUIC connection in the order of the data packet serial number from small to large. After receiving the QUIC data packet sent by the se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L5/00H04L45/24H04L45/74
CPCH04L69/164H04L45/74H04L69/22H04L45/24H04L47/34H04L47/196H04L5/0053H04L5/0044H04L1/1887H04L1/1893H04L65/65
Inventor 韦安妮亨黄·安东尼·陈熊春山
Owner HUAWEI TECH CO LTD