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

LTE-A carrier wave aggregation component carrier wave distribution method based on CQI

A component carrier and allocation method technology, applied in signaling allocation, transmission path sub-channel allocation, digital transmission system, etc., can solve the problem that the business load is not enough to ensure system performance, etc., to improve system throughput and spectrum utilization , the effect of improving satisfaction

Active Publication Date: 2016-12-21
TIANJIN UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional algorithms are based on load balancing to improve system performance, but business load balancing is not enough to ensure good system performance

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
  • LTE-A carrier wave aggregation component carrier wave distribution method based on CQI
  • LTE-A carrier wave aggregation component carrier wave distribution method based on CQI
  • LTE-A carrier wave aggregation component carrier wave distribution method based on CQI

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention is an LTE-A carrier aggregation component carrier allocation method based on channel quality indicator CQI. The main idea is to consider that the channel quality of different component carriers is different. It is found that the better the channel condition is, the higher the modulation and coding order of the system is. , the higher the order of modulation and coding, the greater the throughput of the system. Therefore, a CQI-based component carrier allocation method is proposed. During user data transmission, component carriers with higher CQI are preferentially selected to achieve high-speed data transmission and improve system performance.

[0020] In order to make the purpose, technical method and advantages of the present invention clearer and easier to understand, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific steps.

[0021] figure 1 It is a schematic diagram of LT...

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 provides an LTE-A carrier wave aggregation component carrier wave distribution method based on CQI. The method comprises the following steps of according to a coupling loss CL of a carrier wave, a component carrier wave CC is divided into a primary cell carrier wave PCC and a supplemented cell carrier wave SCC; calculating a channel quality indication CQI value of each current component carrier wave CC; directly mapping an effective signal-to-interference and noise ratio to the channel quality indication CQI; and arranging the calculated channel quality indication CQI values according to a sequence from high to low, and when a user carries out data transmission, firstly accessing the component carrier wave with the high CQI value, which means that the component carrier wave with a good channel condition is preferentially used to carry out data transmission. By using the method of the invention, a frequency spectrum utilization rate and a system throughput capacity can be increased; and satisfaction of a direct user is improved.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method for allocating component carriers of LTE-A carrier aggregation. Background technique [0002] LTE-A is an evolved version of the long-term evolution system LTE. In order to meet the peak rate of LTE-A downlink 1Gbit / s and uplink 500Mbit / s, a key new feature of LTE-A is specified in 3GPP R10, namely carrier aggregation technology. Since there are no 100M continuous frequency bands available for LTE-A in current spectrum resources worldwide, carrier aggregation technology is to aggregate multiple continuous or discrete carriers together to form a wider spectrum, which can not only meet the requirements of wide bandwidth It can also improve the utilization rate of fragmented spectrum and avoid spectrum waste. [0003] Due to the introduction of carrier aggregation technology in LTE-A, different modules of the corresponding system must be changed accordingly, and...

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): H04L5/00H04W72/04
CPCH04L5/0057H04W72/0453
Inventor 阿柔娜金杰苏寒松刘高华
Owner TIANJIN UNIV
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