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A kind of error correction method and error correction device

An error correction method and retrospective error correction technology, applied in the direction of error prevention, digital transmission system, baseband system components, etc., can solve problems such as improving DFE bit error rate, error transmission, and affecting judgment

Active Publication Date: 2021-12-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since DFE is a feedback equalizer, when a signal is misjudged and a bit error occurs, it will affect the judgment of the next signal, resulting in bit error transmission and increasing the bit error rate of DFE.

Method used

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  • A kind of error correction method and error correction device
  • A kind of error correction method and error correction device
  • A kind of error correction method and error correction device

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Embodiment Construction

[0047] Firstly, the terms "system" and "network" are often used interchangeably herein. The term "and" merely describe a relationship of associated objects representing three relationships may exist, e.g., A and B, can be expressed: A exists alone, A and B are present at the same time, the presence of three separate B condition. In addition, the characters " / " herein generally indicate a "or" relationship of the associated object before and after.

[0048] The present application provides an error correction method and an error correction apparatus may be applied to high-speed Internet require scene. For example, if figure 2 , The network link provides a schematic of the present application. Among them, if figure 2 In (a) shows the relationship between the chip and the chip via interconnect links interconnected channels; figure 2 In (b) shows the relationship between the chip and the light module interconnection, and the Internet interconnection link between the optical module and...

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Abstract

The application provides an error correction method and an error correction device, which relate to the field of communication technology and can reduce the bit error rate of DFE and improve the equalization performance. The method includes: obtaining the decision signal of the decision feedback equalizer DFE; obtaining the input of the DFE signal, a balanced output signal and a difference, the difference being the difference between the level value of the decision signal and the level value of the balanced output signal; according to the decision signal, The detection of at least one signal in the equalized output signal and the difference value determines the symbol position of the burst error end of the decision signal; when the symbol position is detected, according to the input signal, the equalized Outputting at least one signal of the signal and the difference, and performing error correction on the decision signal.

Description

Technical field [0001] The present application relates to the technical field of communication, and more particularly to an error correction method and an error correction device. Background technique [0002] High-speed link technology is the basic technology of chips and interfaces, including electrical links and light links. In high-speed power links, due to the insert loss generated when the cable or fiber is inserted into the transceiver, the inter range interference (Inter Symbolinterference, ISI), and in the high-speed light link, the optical conversion device in the optical fiber, and the transceiver, Bandwidth restrictions such as drives (DRIVER), modulator (PIN / APD), transmantratic amplifier (TIA), etc. also cause ISI. Therefore, it is necessary to set a equalizer in the transceiver to compensate for the ISI caused by insertion loss or defective bandwidth. [0003] The current decision feedback equilibrium, DFE is a more common equalizer, and the structure of DFE is f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L1/00
CPCH04L25/03146H04L25/03324H04L25/03203H04L1/0047H04L1/0061H04L1/0045H04L25/03057
Inventor 陆玉春
Owner HUAWEI TECH CO LTD