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Error detection method and error control method applied to computer communication

An error detection and error control technology, which is applied in the direction of error prevention/detection using the return channel, forward error control, and error prevention. Efficiency and quality, improving transmission quality, and reducing transmission delay

Inactive Publication Date: 2019-10-11
西安柏宜斯信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Error detection in the prior art is only implemented simply on line codes, such as using HDB3 codes (HighDensity Bipolar of Order 3, third-order high-density bipolar codes) or CMI codes (Coded Mark Inversion, mark inversion codes) Encoding rules, the number of polarity violations is detected to evaluate the transmission quality, and when the estimated bit error rate reaches a certain level, a corresponding immediate maintenance alarm signal is issued. This detection method has a high probability of missed detection, which is greatly reduced. Improve the efficiency and quality of information transmission

Method used

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  • Error detection method and error control method applied to computer communication

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Embodiment 1

[0012] Such as figure 1 As shown, the error detection method applied in computer communication provided by this embodiment includes the following steps:

[0013] S1 is a step for sending the data inside the computer to the I / O device;

[0014] S2 is used for the step of performing error detection on the data sending process;

[0015] S3 is a step for outputting the error detection result.

[0016] Those skilled in the art can understand that for different transmission media and actual channel conditions, using the error detection and control method applied in computer communication provided by this embodiment can improve transmission quality and reduce transmission delay, thereby improving data communication. efficiency and quality.

[0017] Those skilled in the art can understand that based on the causes of errors, errors can be divided into two categories: random errors and burst errors. Random errors refer to those errors that occur independently and sparsely. Errors ca...

Embodiment 2

[0059]The method for error control applied in computer communication provided by this embodiment includes the following steps:

[0060] S4 is a step of performing backward error control.

[0061] Those skilled in the art will appreciate that applying the backward error control method requires a bidirectional communication channel.

[0062] Further, the step of S4 performing backward error control includes:

[0063] The sender divides the data to be sent into independent data blocks, and performs error detection coding on each data block;

[0064] The receiver, if it detects an error in the received data, uses the reverse channel to request the sender to resend the wrong data block.

[0065] Those skilled in the art can understand that the above mechanism using the error detection technology is also called automatic retransmission request. The ARQ (Automatic Repeat Request, automatic re-request) method can repair the detected errors.

[0066] The method for error control ap...

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Abstract

The invention discloses an error detection method and an error control method applied to computer communication. The detection method comprises the following steps: S1, sending data in a computer to I / O equipment; s2, performing error detection on the data sending process; and S3, outputting an error detection result. According to the error detection method and the error control method applied tocomputer communication provided by the invention, different error detection and control schemes are used for different transmission media and actual channel conditions, so that the transmission quality can be improved, the transmission delay can be reduced, and the efficiency and quality of data communication can be improved.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to an error detection and control method applied in computer communication. Background technique [0002] Error detection (error detection) refers to the technology of adding appropriate redundancy to the transmitted code sequence (codeword) so that the receiving end can find out whether an error occurs in the transmission. In addition to being used for communication, error detection techniques are also widely used in information storage. Error detection in the prior art is only implemented simply on line codes, such as using HDB3 codes (HighDensity Bipolar of Order 3, third-order high-density bipolar codes) or CMI codes (Coded Mark Inversion, mark inversion codes) Encoding rules, the number of polarity violations is detected to evaluate the transmission quality, and when the estimated bit error rate reaches a certain level, a corresponding immediate maintenance alarm signal...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/18
CPCH04L1/004H04L1/0041H04L1/0045H04L1/0061H04L1/1812
Inventor 张辉
Owner 西安柏宜斯信息技术有限公司
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