Method And System For I/Q Mismatch Calibration And Compensation For Wideband Communication Receivers
US-2017373912-A1 · Dec 28, 2017 · US
Method and module for estimating frequency bias in a digital-telecommunications system
US8995576B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995576-B2 |
| Application number | US-201214129579-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2012 |
| Priority date | Jul 11, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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The invention relates to a method for estimating frequency bias negatively affecting a digital signal representative of a symbol frame, wherein said method comprises the steps of: generating the digital signal at a sampling period Te that is shorter than a predefined period of each of the symbols of the frame; calculating values for a plurality of pairs of samples of the digital signal, each value being representative of a phase difference between the samples of a pair; estimating the frequency bias negatively affecting the digital signal on the basis of the values calculated for Np pairs of samples selected such that a plurality of said Np pairs belong strictly to a single symbol in the frame. The present invention also relates to a module for implementing the estimation method, as well as to a telecommunication method and system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of estimating a frequency bias negatively affecting a digital signal representative of a frame of symbols transmitted by a terminal to a station of a digital telecommunication system, said frequency bias corresponding to a difference between a supposed central frequency of a frequency spectrum of the digital signal and a real central frequency of said frequency spectrum, characterized in that it comprises the steps of: generating the digital si…
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Electricity · mapped topic
- H04L27/2338Primary
Electricity · mapped topic
- H04L25/022Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8995576B2 cover?
- The invention relates to a method for estimating frequency bias negatively affecting a digital signal representative of a symbol frame, wherein said method comprises the steps of: generating the digital signal at a sampling period Te that is shorter than a predefined period of each of the symbols of the frame; calculating values for a plurality of pairs of samples of the digital signal, each va…
- Who is the assignee on this patent?
- Artigue Cédric, Fourtet Christophe, Vertes Marc, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L27/2338. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).