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

Data compression method, device and automatic repeat request feedback system

A technology for automatic request retransmission and data compression, applied in the field of data communication, it can solve the problems of poor compression effect and complicated implementation, and achieve the effect of occupying less bits and reducing system overhead.

Inactive Publication Date: 2008-05-07
HUAWEI TECH CO LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In order to solve the technical problem of poor compression effect and complex realization in ARQ error checking results, the present invention provides a data compression method with good compression effect and simple realization

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 compression method, device and automatic repeat request feedback system
  • Data compression method, device and automatic repeat request feedback system
  • Data compression method, device and automatic repeat request feedback system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0053] Embodiments of the present invention provide a method for compressing ARQ error check results, such as Figure 5 As shown, the method includes:

[0054] Step 501: Sequentially count the number of data packets with the same error checking result in the error checking results to be compressed;

[0055] Wherein, the error checking results are arranged in sequence according to their corresponding data packet sequence numbers;

[0056] Wherein, the error check result in this embodiment uses 0 to represent NAK, 1 to represent ACK, in other embodiments of the present invention, 1 may also be used to represent NAK, and 0 to represent ACK does not affect the implementation of the present invention;

[0057] Step 502: The number of data packets satisfies Determin...

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 present invention discloses a data compression method, a device and a feedback system which can automatically require reemission; the method comprises that the value of n is confirmed by the formula I; n bits are provided for identifying the number of the data packets; the value of n is the integral multiple of k and the value of k is one natural number except zero; with the formula II, the n bits are used for representing the confirmed value m which is the data packet number identification section after compression; the method further comprises that less than the bits of the number of data packets which have the same error checking result continuously are used for identifying the result of data packets which have the same error checking result; the bit sequence forms the error identification field. The present invention also discloses a corresponding data compression device and a feedback system which can automatically require reemission. By adopting the method provided by the present invention, the system spending caused by the feedback in the system which can automatically require reemission is reduced and the system resource is saved.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method and device for compressing error check result data generated in an automatic retransmission request mechanism and an automatic retransmission request feedback system. Background technique [0002] When transmitting data between communication network nodes, due to the unreliable transmission channel, it is easy to cause loss and error of data packets, among which loss is also a kind of error; therefore, the receiving end needs to perform error checking on the data packets, and then feed back to the sending end The error checking result of the data packet tells the sender which data packets have been received correctly and which data packets are wrong. After the sending end receives the error checking result, it automatically and repeatedly sends the erroneous data packet to the receiving end until the data packet is received correctly. This technology is called Automatic...

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
CPCH04L1/1614
Inventor 包毅
Owner HUAWEI TECH CO LTD