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Crosstalk eliminating method and device

A crosstalk cancellation, port technology, applied in the direction of reducing crosstalk, reducing line fault/interference, reducing unbalanced current interference, etc.

Inactive Publication Date: 2012-05-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006]However, no technical solution has been proposed to eliminate this interference

Method used

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  • Crosstalk eliminating method and device
  • Crosstalk eliminating method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] method embodiment

[0023] In this embodiment, a method for eliminating crosstalk is provided.

[0024] like figure 2 As shown, the crosstalk elimination method according to this embodiment includes: step S202, the remote VDSL2 device queries the connection mode of its port, and records the power control parameters of the ports whose connection mode is VDSL2; step S204, determines the The power delivery (PSD) template of the corresponding VDSL2 port; and step S206, according to the determined power delivery template of the VDSL2 port, the connection mode of the VDSL2 equipment is set as the power delivery template of the port of ADSL / 2 / 2+.

[0025] Wherein, in step S206, the power transmission template of the port whose connection mode is ADSL / 2 / 2+ is set to be smaller than the power transmission template of the port whose connection mode is VDSL2.

[0026] And, when the VDSL2 device has multiple ports whose connection mode is VDSL2, set the power emission template o...

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PUM

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Abstract

The invention discloses a method for eliminating crosstalk, which comprises the following steps: step S202: remote VDSL2 equipment queries the connection mode of the port of the VDSL2 and records the connection mode as the power control parameter of the port of the VDSL2; step S204: according to the recorded power control parameter, the power transmitting template of a corresponding VDSL2 port isdetermined; step S206: according to the determined power transmitting template, the power transmitting template of the port adopting ADSL / 2 / 2+ connection mode is set. In addition, the invention also provides a crosstalk eliminating device. The invention can reduce mutual crosstalk when the VDSL2 equipment is compatible with an ADSL / 2 / 2+ subscriber terminal, thereby maintaining spectral compatibility.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a method and a device for eliminating crosstalk in an environment where VDSL2 and ADSL are compatible. Background technique [0002] At present, the latest emerging VDSL2 is a master of xDSL technology. Considering that ADSL / 2 / 2+ has been widely used, and the application of VDSL2 is still in its infancy, the central office equipment of VDSL2 must be compatible with a large number of existing ADSL / 2 / 2+ terminals. The deployment trend of the broadband access network is to gradually disperse and move down. [0003] figure 1 Future deployment patterns are shown. Because new VDSL2 equipment can provide higher bandwidth in a short distance (within 1km), it is usually deployed close to users. On the one hand, there will be new users who will directly use VDSL2 services; on the other hand, there will be old ADSL users within the coverage of the equipment, and the new VD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/32H04B3/30H04B3/04H04L25/08
CPCH04M3/34H04B3/32H04M3/304H04W52/04H04L5/0066
Inventor 李际涛
Owner ZTE CORP