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Method, device and system for enhancing stability of DSL circuit

A stability and line technology, applied in the direction of wired transmission system, transmission system, line transmission parts, etc., to achieve the effect of protecting stability and ensuring line stability

Inactive Publication Date: 2010-06-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inventor found that although the above-mentioned virtual noise technology can improve the stability of the line to a certain extent, it also sacrifices the transmission rate of the line that users are also concerned about while ensuring the stability of the line to the maximum extent.

Method used

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  • Method, device and system for enhancing stability of DSL circuit
  • Method, device and system for enhancing stability of DSL circuit
  • Method, device and system for enhancing stability of DSL circuit

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Embodiment Construction

[0028] Such as figure 1 As shown, the broadband network system of the embodiment of the present invention includes: user end equipment 12 and central office equipment 16, user end equipment 12 is usually a digital subscriber line modem, which is linked with the central office equipment 16, and the user end equipment 12 can send to the office The end device 16 sends messages, and can also receive and process the messages sent by the central end device 16.

[0029] The central office equipment 16 is specifically a Digital Subscriber Line Access Multiplexer (DSLAM, Digital Subscriber Line Access Multiplexer), and the Digital Subscriber Line Access Multiplexer includes a housing, a sending unit and a receiving unit, and the sending unit and the receiving unit are arranged on Inside the case, it is used for sending and receiving data.

[0030] The reference virtual noise determination module in the embodiment of the present invention can be set in the central office device 16 or i...

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Abstract

The invention provides a method, a device and a system for enhancing stability of DSL circuit. The method comprises the following steps: obtaining actual noise of a receiver end on the DSL subcarrier; performing statistical analysis to the actual noise of the receiver; determining reference virtual noise according to the statistical analysis of the obtained actual noise of the receiver on the subcarrier and relevant parameters of SOS mechanism for urgent speed reduction and configuring a user template according to the related parameters of SOS and the determined reference virtual noise. The scheme of the invention needs not to set the virtual noise at the maximum, when the actual noise is lower than the virtual noise, the speed of the user can be avoided from losing too much, and when the condition for starting urgent speed reduction mechanism SOS is satisfied, the urgent speed reduction mechanism SOS can be started to ensure the stability of user service.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for improving the stability of a DSL line. Background technique [0002] DSL technology is a high-speed transmission technology for data transmission through telephone twisted pair, that is, unshielded twisted pair, including asymmetrical digital subscriber line (Asymmetrical Digital Subscriber Line, ADSL), very high-speed digital subscriber line (Very-high- bit-rate Digital Subscriber Line (VDSL), ISDN Digital Subscriber Line (IDSL) based on Integrated Services Digital Network (ISDN), Single-pair High-bit- rate Digital Subscriber Line, SHDSL), second-generation asymmetrical digital subscriber line (Asymmetrical Digital Subscriber Line 2, ADSL2), extended frequency band second-generation asymmetrical digital subscriber line (Asymmetrical Digital Subscriber Line2plus, ADSL2plus), second-generation even High-speed digital subscriber line (Very-high-bit-rate Di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/23H04B3/32
Inventor 刘立贺方李明拉斐尔·幸德瑞那
Owner HUAWEI TECH CO LTD
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