Data retransmission method and device

A data retransmission and retransmission technology, which is applied in the field of communication, can solve the problems of not guaranteeing the success of data transmission, not guaranteeing the accuracy of data, losing a few seconds or more than ten seconds, etc.

Active Publication Date: 2017-03-22
迈锐数据(北京)有限公司
View PDF4 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing TCP overtime retransmission mechanism has very short retransmission times and time. Once encountering GPRS (General Packet Radio Service, General Packet Radio Service), 3G (3rd-Generation, third-generation mobile communication technology) , 4G (the 4th Generation mobile communication technology, the fourth generation mobile communication technology) and other network congestion or poor signal conditio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data retransmission method and device
  • Data retransmission method and device
  • Data retransmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention, which relates to the communication field, provides a data retransmission method and device. The method comprises: after a real-time data packet is sent to a server, the real-time data packet carrying a packet serial number to a first cache region; and when response information that is returned by the server and corresponds to the packet serial number of the real-time data packet is not received within a first time threshold, the real-time data packet corresponding to the packet serial number in the first cache region is retransmitted to the server by a retransmission thread. In the prior art, the data transmission success can not be guaranteed and the packet loss probability is high according to the TCP protocol retransmission mechanism. However, according to the data retransmission method provided by the invention, a retransmission work mechanism asynchronous with the TCP transmission protocol is employed; and thus the response information for first-time data packet sending and receiving is in an asynchronous working process, so that next data can be sent without the need to wait for receiving the response information of the last data packet. Therefore, a phenomenon of data sending waiting caused by data packet and response information delay due to network congestion can be avoided, so that the real-time and rapid properties of data are enhanced.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular, to a data retransmission method and device. Background technique [0002] TCP (Transmission Control Protocol, Transmission Control Protocol) is a connection-oriented, reliable, byte stream-based transport layer communication protocol, defined by IETF's RFC 793, which is a standard for network communication. Currently, through the network Most of the transmitted data is transmitted based on the TCP protocol. [0003] In actual data transmission, usually there will be a large amount of real-time data that needs to be uploaded to the server by the wireless network using the TCP protocol. The transmitted real-time data ranges from several to dozens of pieces per second. After sending these data to the server, if the ACK message fed back by the server is not received within the predetermined time, the TCP timeout retransmission mechanism will be started, that is, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L1/18
Inventor 刘向东任俊伟路平
Owner 迈锐数据(北京)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap