Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Channel quality indicator CQI information correction method and apparatus thereof

A channel quality indication and increment technology, applied in correct operation testing, digital transmission systems, electrical components, etc., can solve the problems of few scheduling times, short reporting period, low CQI accuracy, etc., to increase the number of samples, The effect of improving accuracy

Active Publication Date: 2011-11-23
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Whenever the eNB obtains a new CQI value, the eNB will clear the previous CQI adjustment amount to zero. If the number of samples of the CQI adjustment information in this cycle is small, such as the UE reporting cycle is short or the number of times the UE is scheduled in a cycle Less, it will cause the accuracy of this CQI correction to be relatively low

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
  • Channel quality indicator CQI information correction method and apparatus thereof
  • Channel quality indicator CQI information correction method and apparatus thereof
  • Channel quality indicator CQI information correction method and apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] see figure 1 , this embodiment provides a method for correcting channel quality indication information, including:

[0055] 101: After obtaining the first CQI information at the first moment, calculate the cumulative CQI adjustment amount corresponding to the first moment;

[0056] 102: After acquiring the second CQI information at the second moment, calculate the period cumulative CQI adjustment amount between the first moment and the second moment;

[0057] 103: Accumulate the accumulated CQI adjustment amount corresponding to the first moment with the corresponding first confidence level and the periodic accumulated CQI adjustment amount to obtain the accumulated CQI adjustment amount corresponding to the second moment;

[0058] 104: Accumulate the accumulated CQI adjustment amount corresponding to the second moment with the second CQI information at the corresponding second confidence level, to obtain the second CQI information after correction.

[0059] In the me...

Embodiment 2

[0102] see image 3 , this embodiment provides an apparatus for correcting channel quality indication information, including:

[0103] An accumulation module 301, configured to calculate the cumulative CQI adjustment amount corresponding to the first moment after the first CQI information is acquired at the first moment;

[0104] Calculation module 302, configured to calculate the periodic cumulative CQI adjustment amount between the first moment and the second moment after the second CQI information is acquired at the second moment;

[0105] The accumulation module 303 is used to accumulate the accumulated CQI adjustment amount corresponding to the first moment obtained by the accumulation module 301 with the corresponding first confidence degree and the periodic accumulated CQI adjustment amount obtained by the calculation module 302 to obtain the accumulated CQI corresponding to the second moment adjustment amount;

[0106] The correction module 304 is configured to accum...

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 discloses a channel quality indicator information correction method and an apparatus thereof, and belongs to wireless communication field. The method comprises the following steps: after obtaining first CQI information at a first time, calculating a cumulative adjustment amount of CQI corresponding to the first time; after obtaining second CQI information at a second time, calculating a period cumulative CQI adjustment amount between the first time and the second time; adding the period cumulative CQI adjustment amount with the cumulative CQI adjustment amount corresponding to the first time multiplied by corresponding first degree of confidence to obtain a cumulative CQI adjustment amount corresponding to the second time; adding the second CQI information with the cumulative CQI adjustment amount corresponding to the second time multiplied by corresponding second degree of confidence with to obtain corrected second CQI information. The apparatus in the invention comprises a corresponding accumulation module, a corresponding calculation module, a corresponding adding module, and a corresponding correction module. According to the invention, through preserving cumulative CQI adjustment amounts, utilizing prior CQI adjustment information, present CQI is corrected, sample quality of CQI adjustment is increased, and accuracy of CQI correction is effectively improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and a device for correcting CQI information of a channel quality indicator. Background technique [0002] CQI (Channel Quality Indicator, Channel Quality Indicator) information includes uplink CQI and downlink CQI. The uplink CQI refers to the SINR (Signal to Interference plus Noise Ratio, signal to interference and noise ratio) obtained by the eNB (evolved Node B, evolved base station); the downlink CQI refers to the UE (User Equipment, user equipment) received by the eNB ) Feedback CQI value. Inaccurate CQI information may be caused by factors such as noise power playing a dominant role in low SNR conditions, mismatch between the CQI fed back by UE and its own demodulation performance, and reconstruction of RI reported by eNB to UE. Therefore, the eNB needs to correct the acquired CQI information. [0003] There is an existing method for correcting CQI informat...

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): H04L1/24H04L1/00
Inventor 汪玲史宝玉于洋李琼
Owner DATANG MOBILE COMM EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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