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Method for resisting impulse noise interference and device thereof

A noise interference, anti-pulse technology, applied in the field of communication

Active Publication Date: 2010-10-06
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing coding technology of ADSL provides some anti-jamming methods, such as discrete multi-tone technology, which has good anti-jamming ability, and it can dynamically adjust sub-bands according to the actual line and external environment interference. The transmission rate of the channel ensures both the high speed of the transmitted data and its integrity, but this encoding technique is only effective for the inherent noise or attenuation of the line, and will not work for the sudden impulse noise

Method used

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  • Method for resisting impulse noise interference and device thereof
  • Method for resisting impulse noise interference and device thereof
  • Method for resisting impulse noise interference and device thereof

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Embodiment Construction

[0038] The core idea of ​​the present invention is: because the static line noise of ADSL all linearly descends along with the rise of frequency, and the higher the frequency is, the easier it is to be interfered by impulse noise, so the present invention obtains the original static line noise of the carrier; according to The acquired original static line noise is used to calculate the virtual static line noise; sending the virtual static line noise to the DSLAM equipment at the central office can realize that the higher the frequency, the larger the signal-to-noise ratio margin, and the more effective noise interference can be resisted.

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Embodiments of the present invention provide a method for resisting impulse noise interference, such as figure 1 shown, including:

[0041] Step 101, acquire the original static line noise of the ca...

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Abstract

The invention discloses a method for resisting impulse noise interference and a device thereof, belonging to the field of communication. The method comprises the steps of: acquiring carrier wave original static line noise; calculating virtual static line noise according to the acquired original static line noise; and accessing a multiplexer device into a local side digital subscriber line, and sending the virtual static line noise. The device comprises an acquisition unit, a calculation unit and a transmission unit.The technical scheme of the invention can more effectively resist the noise interference.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for resisting impulse noise interference. Background technique [0002] Cable service operators employ hybrid fiber / coax infrastructure and leased lines to provide subscribers with triple play: consolidated video services, cable modem-based data services, and voice services. At present, according to the development of the situation, telecommunications companies have strengthened the infrastructure construction of Asymmetric Digital Subscriber Line (ADSL), and launched Internet Protocol Television (IPTV) with the help of video codecs that use bandwidth efficiently. services, which is conducive to the overall promotion of broadband technology, and realize its own triple business integration function. [0003] Because most of the users who use ADSL are home users, the use environment is very complicated, and the electromagnetic interference of various household applian...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L25/03
Inventor 季松涛徐殿平宋明
Owner ZTE CORP
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