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Data framing method and equipment thereof

A data framing and data technology, applied in the field of communication, can solve problems such as degraded system performance and wrong synchronization

Active Publication Date: 2009-01-14
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

That is to say, in the frame structure of the prior art, there is a high correlation between a complete FEC frame and a new frame formed after the frame slides several information blocks (data blocks and check blocks are collectively referred to as information blocks). In the case of frame synchronization, error synchronization may occur, which reduces the performance of the system

Method used

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  • Data framing method and equipment thereof
  • Data framing method and equipment thereof

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The first embodiment of the present invention relates to a data framing method. In this embodiment, N data blocks and M check blocks after FEC encoding are arranged at intervals to form an FEC frame, that is, N data blocks Divide into X parts, divide M check blocks into Y parts, arrange the data blocks and check blocks of each part at intervals to form a frame; where N≥X≥1, M≥Y≥1, X, At least one of Y is greater than 1, and the difference between the absolute values ​​of X and Y is less than 2. If X=Y=p, then as image 3 As shown, in a complete FEC frame, first place N 1 Data blocks, followed by M 1 Check blocks, then place N 2 Data blocks, followed by M 2 Check blocks, and so on, finally N p Data block followed by M p Check block. In th...

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Abstract

The present invention relates to the communication field, and discloses a data framing method and equipment thereof, which reduces the probability of synchronization error. In the invention, M verifying blocks are obtained by coding N data blocks, wherein each data block contains a data synchronization header, each verifying block contains a verifying synchronization header, the data synchronization header and the verifying synchronization header are different, the N data blocks are divided into X parts, and the M verifying blocks are divided into Y parts (N>=X>=1, M>=Y>=1, at least on of X and Y is greater than 1, the difference of the absolute values of X and Y is less than 2). Then, various parts of the data blocks and verifying blocks are arranged with an interval between each other to form a frame.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to data framing technology. Background technique [0002] With the continuous development of communication technology, users have higher and higher requirements for various service qualities such as communication capacity and speed. Since the access network is one of the most technically challenging areas in the entire telecommunications network, in order to meet the increasing requirements of users for bandwidth and to achieve high-speed, broadband and intelligent access networks, various access technologies are emerging in endlessly Appear. Among them, the most promising is the passive optical network (Passive Optical Network, "PON") technology, especially the Ethernet Passive Optical Network (Ethernet Passive Optical Network, "EPON") technology. [0003] Since EPON is a technology that uses passive optical transmission, it does not use components with amplification and relay func...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L1/00H04L7/04
CPCH03M13/333
Inventor 梁伟光耿东玉封东宁弗兰克·埃芬博格
Owner HUAWEI TECH CO LTD
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