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

Method, apparatus and system of signal processing

A signal processing and signal technology, applied in the field of communication, can solve problems such as crosstalk of nearby lines, and achieve the effect of solving crosstalk

Active Publication Date: 2012-01-11
HUAWEI TECH CO LTD
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a signal processing method, device and system to solve the problem in the prior art that the SELT test signal generates crosstalk to nearby lines when it is sent

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, apparatus and system of signal processing
  • Method, apparatus and system of signal processing
  • Method, apparatus and system of signal processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] figure 1 A flowchart of a signal processing method provided by an embodiment of the present invention, such as figure 1 As shown, the method includes:

[0027] Step 101, the DSLAM sends a crosstalk detection signal on the connected line through the first user port, and receives the error sample of the actual downlink signal fed back by th...

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 method, apparatus and system of signal processing. The method comprises: sending crosstalk detection signals on an interconnection line through a first user port; receiving an error sample of an actual downgoing signal feedback by a terminal side on an interconnection line through a second user port; evaluating the coefficient of DSLAM precoder on the basis of the error sample of the actual downgoing signal and the crosstalk detection signal, and obtaining the evaluated precoder coefficient which is used to offset the far-end crosstalk which the interconnection line of the second user port suffers when the first user port sends SELT signal.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a signal processing method, device, and system. Background technique [0002] Digital Subscriber Line (DSL for short) is a high-speed data transmission technology transmitted over an Unshielded Twist Pair (UTP for short), and various types of DSL can be collectively referred to as xDSL. In addition to DSL for baseband transmission, xDSL for passband transmission utilizes frequency division multiplexing technology to enable xDSL and a traditional telephone service (Plain Old Telephone Service, POTS for short) to coexist on the same pair of twisted pairs. Among them, xDSL occupies the high frequency band, and POTS occupies the baseband part below 4kHz. A DSL Access Multiplexer (DSL Access Multiplexer, DSLAM for short) can provide access services for multiple xDSL channels. [0003] When users activate xDSL services, there is a problem with the ...

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): H04L25/03H04L25/02H04B3/46H04B3/32
CPCH04M3/34H04B3/32
Inventor 石操
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