Decoding method, decoding device and decoder for correcting burst errors
A burst error and burst correction technology, applied in the field of data communication, to achieve the effect of small decoding delay
Active Publication Date: 2017-08-29
INT BUSINESS MASCH CORP
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Problems solved by technology
However, the process of determining the error pattern will introduce a delay of about one frame
Therefore, if one wants to determine whether the frame is correctable or not correctable before the data is sent to the upper layers, a decoding delay of two frames is required since the data is received
Also, this would require a larger buffer to store two full frames of data
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[0030] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0031] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present disclosure can be specifically implemented in the following forms, namely: it can be complete hardware, it can also be complete software (including firmware, resident software, microcode, etc.), and it can also be a combination of hardware and software. Called a "circuit", "module" or "sy...
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The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
Description
technical field [0001] The present invention generally relates to the field of data communication, and in particular, relates to a decoding method, a decoding device and a decoder for correcting burst errors. Background technique [0002] Recently, forward error correction (FEC) techniques based on burst error correction cyclic codes are becoming more and more widely used as data transmission rates continue to increase in communication and Internet domains such as high-speed SERDES. [0003] For example, the IEEE802.3ap standard requires a shortened cyclic code (2112, 2080) capable of correcting burst errors up to 11 bits, of which 2080 bits are information bits and the remaining 32 bits are parity bits. Typically, burst error correction codes include, for example, Fire Codes whose generator polynomial is g(x)=(x 2L-1 +1)p(x). Among them, all Galois field operations are in GF(2 m ), m is the order of the primitive polynomial p(x), L is a positive integer, where L≤m and 2L...
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IPC IPC(8): H03M13/17H03M13/15
CPCH03M13/17H03M13/1525H03M13/1545H03M13/1575H03M13/175H03M13/2906H03M13/35H03M13/3746H03M13/618H03M13/6561
Inventor 宋成伟李厚刚杨浩李宇飞周凡
Owner INT BUSINESS MASCH CORP