Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and apparatus for data mixing and automatic requesting for retransmission

A hybrid automatic and retransmission device technology, which is applied in the direction of error prevention/detection using the return channel, can solve the problems of insufficient use of air interface wireless resources, useless transmission of underlying data, and inability to reuse wrong data, etc.

Inactive Publication Date: 2008-04-02
HUAWEI TECH CO LTD
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, after the maximum number of retransmissions is exceeded, there is no processing method for the transmitted erroneous data, and the transmitted erroneous data cannot be reused, resulting in insufficient utilization of air interface wireless resources, objectively making the underlying Useless transfer of data

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
  • Method and apparatus for data mixing and automatic requesting for retransmission
  • Method and apparatus for data mixing and automatic requesting for retransmission
  • Method and apparatus for data mixing and automatic requesting for retransmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0051] Figure 3 is a schematic diagram of the implementation process of the data mixing automatic request retransmission method. As shown in the figure, in the invented data mixing automatic request retransmission method, in order to realize the error delivery function of the underlying HARQ, the receiving end first implements the following steps:

[0052] Step 301, after receiving the data, the receiving end checks the new data indicating bit to determine whether the data is correct or not;

[0053] Step 302, when the maximum number of retransmissions is reached, submit the retransmitted error data to the reassembly buffer, and mark the data;

[0054] If the data in the soft buffer is new data, check whether it is correct. If it is correct, submit the reorganization buffer. If it is not correct, feedback information for the sender to retransmit....

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 method of hybrid automatic repeat request and the device, which includes the steps of: differentiating the wrong data by the receiving end when the receiving end receives the data; identifying the wrong data and presenting to the regrouping buffer area when the hybrid automatic repeat request has reached a maximum repeat number; processing the wrong data and presenting to the high layer by the receiving end at the regrouping buffer area according to the data identification and the transferring sequence number. The invention increases the error presenting faculty of the base layer when the hybrid automatic repeat has reached the maximum repeat number, at the same time further takes measure to avoid the effect caused by the error of the grouping data head thereby obtaining the advantages of providing the useful information to the high layer as much as possible, avoiding the useless transmission of the base layer data and meanwhile increasing the satisfaction of the user.

Description

technical field [0001] The invention relates to a communication data transmission technology, in particular to a method and device for automatically requesting retransmission of data mixing in communication. Background technique [0002] In wireless communication, because the transmitted signal has to go through a complex propagation environment and is affected by path loss, shadow fading and small-scale fading, the transmission quality of the signal is lower than that of the wired network environment, and the reliability of the data is poor. In view of the unstable characteristics of the wireless channel, the bottom layer adopts many technologies to make up for this, including hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat request), adaptive modulation and coding (AMC, Adaptive Modulation and Coding) and other technologies. [0003] HARQ is the technology used in the bottom layer, which is a combination of forward error correction coding and automatic reques...

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): H04L1/18
Inventor 韩欣丁颖哲
Owner HUAWEI TECH CO LTD
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com