Forward error correction encoding method, forward error correction decoding method and devices thereof

A technology of forward error correction coding and forward error correction code, which is applied in the field of communication, can solve problems such as bandwidth waste and achieve the effect of saving bandwidth resources

Inactive Publication Date: 2010-03-03
NAT UNIV OF DEFENSE TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a forward error correction coding method, a forward error correction decoding method and a device thereof, which are used to solve problems caused by a large amount of padding in a message in the prior art during message transmission. The defect of wasting bandwidth, reducing unnecessary bandwidth waste

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  • Forward error correction encoding method, forward error correction decoding method and devices thereof
  • Forward error correction encoding method, forward error correction decoding method and devices thereof
  • Forward error correction encoding method, forward error correction decoding method and devices thereof

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Embodiment Construction

[0021] The technical solutions of the embodiments of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] According to an embodiment of the present invention, a forward error correction coding method is provided, figure 2 It is a flow chart of the forward error correction coding method of the embodiment of the present invention, such as figure 2 As shown, the forward error correction coding method according to the embodiment of the present invention includes:

[0023] Step 201, the sender fills the message with padding according to the preset encoding rules, and divides the message containing the padding into data blocks of equal length; wherein, the preset encoding rules include: the number of data blocks, redundancy The number of error correction blocks, the length of the data block, the length of the redundant error correction block, the position of adding the cyclic redundancy check value,...

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Abstract

The invention provides a forward error correction encoding method, a forward error correction decoding method and devices thereof, wherein the forward error correction encoding method comprises the steps of filling filler in a message according to preset encoding rules and dividing the message with the filler into data blocks with equal length; generating redundancy error correction blocks according to the encoding rules and data blocks and removing the filler from the data blocks; respectively determining cyclic redundancy check values of the redundancy error correction blocks and the data blocks with the filler removed, and adding the cyclic redundancy check values into the corresponding redundancy error correction blocks and the data blocks with the filler removed; and leading the datablocks with the filler removed and the redundancy error correction blocks to compose forward error correction codes and sending the forward error correction codes to a receiving end. According to theprocessing, the invention overcomes the defect of the prior art that the bandwidth is wasted in the message transmitting process caused by a large amount of fillers in the message, and saves the bandwidth resources.

Description

technical field [0001] The embodiment of the present invention relates to communication technology, and in particular to a forward error correction coding method, a forward error correction decoding method and a device thereof. Background technique [0002] In related technologies, due to the influence of electromagnetic interference in the wireless transmission link, current surge in the electrical transmission link, and signal strength in the optical transmission link, it is very easy to cause a packet burst in the data link. Burst error, the typical feature of burst error is that the error phenomenon is concentrated in a certain segment of continuous data, and causes a high bit error rate of this segment of data. In severe cases, the bit error rate of burst errors can reach 10 -3 , that is to say, if the length of the message exceeds 1000 bytes, the average error rate of the message is 100%. Such a high bit error rate will lead to increasingly serious bit errors on the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/56
Inventor 王宝生苏金树龚正虎刘亚萍廖海宁陈晓梅陶孜谨白冰郦苏丹王宏胡宁陈琳张晓哲陶静徐京渝
Owner NAT UNIV OF DEFENSE TECH
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