Pre-emphasis coefficient test method and device and communication device

A technology of pre-emphasis coefficients and communication equipment, which is applied in transmission systems, using signal quality detectors for error detection/prevention, transmission monitoring, etc. Problems such as aggravating coefficients to achieve the effect of improving reliability

Active Publication Date: 2018-09-14
NEW H3C TECH CO LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there may be a lot of pre-emphasis coefficients that will not cause bit error rate screened out in this way, and it is impossible to determine the pre-emphasis coefficient that can optimize the communication effect, resulting in little reference value for the pre-emphasis coefficients selected

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
  • Pre-emphasis coefficient test method and device and communication device
  • Pre-emphasis coefficient test method and device and communication device
  • Pre-emphasis coefficient test method and device and communication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0025] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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 a pre-emphasis coefficient test method and device and a communication device. The communication device comprises a medium access control chip and a physical layer chip. The method comprises the steps of taking one of the medium access control chip and the physical layer chip as a sender, taking the other as a receiver, and controlling the sender to send an eye diagram test signal to the receiver; controlling the sender to carry out high frequency component compensation on the sent eye diagram test signal through adoption of a plurality of different pre-emphasis coefficients in sequence; for each pre-emphasis coefficient, obtaining an eye height value of an eye diagram generated by the receiver according to the eye diagram test signal; and taking the pre-emphasis coefficient corresponding to the obtained highest eye height value as the optimal pre-emphasis coefficient, and sending the signal to the receiver through adoption of the optimal pre-emphasis coefficient.The pre-emphasis coefficient with relatively high transmission quality can be screened out relatively accurately and rapidly, and the signal transmission reliability between the medium access controlchip and the physical layer chip can be improved.

Description

technical field [0001] The present application relates to the technical field of communication equipment, in particular, to a pre-emphasis coefficient testing method, device and communication equipment. Background technique [0002] With the increase of the port rate of the communication device, a very high signal transmission rate is required between the physical layer and the media access control layer in the communication device. After a high-speed serial electrical signal passes through a certain transmission distance in the communication device, the high-frequency component will attenuate. The higher the signal transmission rate, the greater the attenuation rate of the high-frequency component. The reduction of high-frequency components will produce intersymbol interference (InterSymbol Interference, referred to as ISI), that is, the attenuation of high-frequency components will cause waveform distortion or broadening of telecom symbols, which will interfere with the sa...

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): H04B17/309H04L1/20
CPCH04L1/20H04B17/309
Inventor 张久仙徐真真周木子
Owner NEW H3C 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap