Method, device and system of self-adaptive dynamic forward error correction coding

Abstract

The invention discloses a method, a device and a system of self-adaptive dynamic forward error correction coding. The method comprises the following steps: launching coding consultation request information comprising a coding algorithm to a message transmission device on a communication link according to the current network status; receiving the coding consultation confirmation information that isreturned by the transmission device, and decoding messages received by the transmission device according to the coding algorithm. The device comprises a consultation transmission module and a receiving process module. In the technical schemes, a coding consultation mechanism can be established between the transmission device and a receiving device so as to establish the appropriate coding algorithm between the transmission device and the receiving device, therefore, the data transmission efficiency is improved while ensuring the data transmission reliability; and the invention can be suitablefor requirements of data transmission by adopting forward error correction coding under various network environments.

Description

technical field [0001] The present invention relates to forward error correction coding technology, in particular to an adaptive dynamic forward error correction coding method, device and system. Background technique [0002] When network data is transmitted on the communication line, errors may occur in the data packet transmission process due to the unreliable channel on which the communication line depends. The data packet received by the receiving end is more or less different from the data packet sent by the sending end. , so that the data of the received data packet is unavailable, and this phenomenon of data packet error is also called bit error. There are many reasons for bit error, such as electromagnetic interference in radio transmission, current surge in electrical transmission link Surges or signal strength in the optical transmission link may cause the channel of the communication line to be unreliable, resulting in sudden bit errors in the data link transmissi...

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Problems solved by technology

[0009] In the process of realizing the present invention, the inventor finds that the existing forward error correction technology has at least the following defects: in the existing adaptive FEC encoding method, a single FEC encoding algorithm is used, and generally the size of redundant data or whether Carry out FEC coding for control to adapt to the current network environment. The FEC coding method is simple. For the dynamic transmission of network data, when the network environment is easy to change, the sending end and the receiving end can only use a single FEC coding algorithm, which cannot adapt The transmission of data using forward error correction coding in various network environments results in low data transmission efficiency and reliability

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