Unlock instant, AI-driven research and patent intelligence for your innovation.

Data transmission method and device over the air

A data transmission and wireless technology, applied in the field of communication, can solve the problems of reduced transmission efficiency and difficulty in ensuring sequential transmission of file data packets, and achieve the effect of improving data transmission efficiency

Inactive Publication Date: 2016-12-14
MIDEA SMART TECH CO LTD +1
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing networks adopt the packet transmission method, and it is difficult to guarantee the sequential transmission of each data packet of the file. For the non-sequential transmission of the data packets, the TCP protocol needs to spend a lot of time and resources to determine the unsuccessful transmission when the network is abnormal. Data packets, and then retransmit the determined lost data packets, resulting in a decrease in transmission efficiency

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 transmission method and device over the air
  • Data transmission method and device over the air
  • Data transmission method and device over the air

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0024] figure 1 It is a flowchart of a method for data transmission in wireless download according to an embodiment of the present invention; the method can be adapted to various devices, such as home appliances, mobile phones, tablet computers, etc., such as figure 1 As shown, the method may include the following steps.

[0025] In step S110, information indicating the number of data blocks in the file to be transmitted is received.

[0026] Wherein, the data blocks of the file have the same data length except the last data block.

[0027] For example, before sending the upgrade file, the server divides the upgrade file into data blocks according to the pres...

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 relates to the technical field of communication and discloses a data transmission method and device over the air. The method comprises the steps of receiving information for indicating the number of data blocks in a to-be-transmitted file; setting corresponding flag bits for the data blocks according to the number of data blocks in the to-be-transmitted file; receiving the data blocks in the file; for the received data blocks, setting the flag bits corresponding to the data blocks to indicate that the data blocks are received successfully; detecting the set flag bits corresponding to the data blocks and judging whether the file is received successfully or not; and determining the data blocks which are not received successfully by detecting the flag bits corresponding to the data blocks when it is determined that the file is received successfully, and starting a retransmission mechanism for the determined data blocks which are not received successfully. According to the method and the device, the lost data blocks can be rapidly determined for retransmission by detecting the flag bits of the data blocks. Compared with the prior art, the method and the device have the advantage that the data transmission efficiency can be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for data transmission in wireless downloading. Background technique [0002] The OTA (Over The Air) function is one of the important means for automatic updating of existing devices, which can add new functions and repair defects in the device without manual intervention. The way of performing data transmission in wireless downloading in the prior art includes: adopting HTTP protocol for data transmission. The HTTP protocol is a TCP-based network protocol. When the transmitted data packets are lost due to network abnormalities, the HTTP protocol will enable the resume function. However, the occupied space of the HTTP protocol library is relatively large, and it is not suitable for home appliances or portable devices with limited storage resources. If the HTTP protocol is redeveloped without using the existing HTTP protocol library, the develop...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/801H04L12/951H04L1/18H04L47/43
CPCH04L1/1809H04L1/1829H04L47/31H04L47/34H04L67/06
Inventor 黎文琛
Owner MIDEA SMART TECH CO LTD