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

Method and device for measuring ratio between interference and noise of carrier

A technology of carrier interference and interference noise, which is applied in the field of carrier-to-interference-to-noise ratio measurement method and measurement device, can solve problems such as inaccurate measurement, and achieve the effects of overcoming inaccurate measurement, improving performance, and accurate carrier-to-interference-to-noise ratio

Inactive Publication Date: 2010-09-08
HUAWEI TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention provides a method for measuring carrier-to-interference-to-noise ratio, which is used to solve the problem of inaccurate carrier-to-interference-noise ratio measurement in the prior art when the signal experiences a time-varying channel during terminal movement

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 device for measuring ratio between interference and noise of carrier
  • Method and device for measuring ratio between interference and noise of carrier
  • Method and device for measuring ratio between interference and noise of carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

Embodiment 2

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 method comprises: selecting multi subcarrier waves and grouping them; each sub-carrier group includes same amount of sub-carrier pairs; respectively using the sub-carrier in each sub-carrier group to estimate the interference noise power of frequency domain channel response estimated value of sub-carrier in each sub-carrier group; according to the rules of frequency domain channel response linear variation of the sub-carrier, removing all estimation error caused by the frequency domain response variation in the interference noise power; according to the interference noise power where the error is removed from, calculating and acquiring the carrier interference SNR.

Description

technical field The invention relates to the field of wireless communication, in particular to a method and device for measuring carrier-to-interference-to-noise ratio. Background technique In recent years, a multi-carrier transmission technology represented by Orthogonal Frequency Division Multiplexing (OFDM) has attracted widespread attention. Multi-carrier transmission decomposes a data stream into several independent sub-streams, each with a much lower bit rate. Using the low-rate symbols formed at such a low bit rate to modulate the corresponding sub-carriers constitutes a transmission system in which multiple low-rate symbols are sent in parallel. After years of development, OFDM technology has been successfully applied to asymmetric digital subscriber line (Asymmetric Digital Subscriber Line, ADSL), wireless local loop (Wireless Local Loop, WLL), digital audio broadcasting (Digital Audio Broadcasting, DAB), high-definition In high-definition television (High-defini...

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 Patents(China)
IPC IPC(8): H04L27/26
Inventor 钱云襄郑德来王吉滨
Owner HUAWEI TECH 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