Data decoding and coding and receiving/transmission method and device
A technology of data encoding and transmission method, which is applied in the field of communication technology using forward error correction coding and decoding, which can solve the problems of reducing FEC coding performance and achieve the effects of increasing power budget, reducing error probability, and high coding gain
Active Publication Date: 2008-09-17
HUAWEI TECH CO LTD
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Problems solved by technology
The existing technology is to perform FEC encoding on the data after line encoding, which means that FEC encodes the redundant information of line encoding as the data part of FEC encoding, thereby reducing the performance of FEC encoding
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[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.
[0045] The first embodiment of the present invention relates to a data encoding and transmission method. In this embodiment, the block header included in the information block is a synchronization header, which is composed of two bits used for block synchronization. In each information block The information data is 64 bits. The sender first performs 64b / 66b line encoding on the 64-bit information data to generate a 2-bit synchronization header, one of which is an important bit, which is used to indicate the information data in the information block in addition to block synchronization type, the other bit is the minor bit. Then, send the 64-bit information data and the important bits into the buffer as the input data bits of the FEC enco...
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The present invention relates to the communication field, and discloses a data encoding / decoding, receiving and transmitting method and a device thereof. The invention leads to that the encoding gain of the forward error correction encoding can be increased with same transmission spending. In the invention, the secondary bit in the header of the information block is not executed with forward error correction. The block header can be synchronous header. The bit which is used for indicating the style of the information is taken as important bit and is protected through forward error correction encoding. The bit which is only used for block synchronizing is taken as secondary bit and will not participate in the forward error correction encoding and decoding. When the data of the caching is not sufficient, through filling in filling block into the caching, the execution of the forward error correction encoding can be triggered in time. When the forward error correction encoding is executed, the filling block is eliminated from the encoding result and the needless data can be avoided from being transmitted.
Description
technical field [0001] The invention relates to the communication field, in particular to the communication technology using forward error correction coding and decoding. 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 telecommunication network, various access technologies emerge in an endless stream in order to meet the increasing bandwidth requirements of users and realize high-speed, broadband and intelligent access networks. , such as local area network (Local Area Network, referred to as "LAN"), digital subscriber line (Digital Subscriber Line, referred to as "DSL"), hybrid fiber coaxial cable network - cable modem (HFC-Cable Modem), power line Internet access, etc., however It is considered that the most promising is the optica...
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Login to View More IPC IPC(8): H03M13/25
CPCH04L1/0072H04L1/007H03M13/03
Inventor 梁伟光封东宁耿东玉
Owner HUAWEI TECH CO LTD