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Block alternation and de-alternation coding method

An encoding method and de-interleaving technology are applied in the field of performing block interleaving and de-interleaving to achieve the effects of reducing storage units and shortening time.

Inactive Publication Date: 2005-07-20
BENQ CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the delay time is at least C(R-1)+1 time spent writing to the memory

Method used

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  • Block alternation and de-alternation coding method
  • Block alternation and de-alternation coding method
  • Block alternation and de-alternation coding method

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Embodiment Construction

[0032] Figure 1A , Figure 1B ,as well as figure 2 A simple example for implementing the present invention. The block interleaving and de-interleaving method of the present invention can first pass Figure 1A and Figure 1B Explain the desired effect of the present invention. Because it is relatively simple to use a matrix to describe the method of the present invention, Figure 1A and Figure 1B Will be originally as figure 2A string of memory addresses in is represented in the form of a matrix. In this example, the total number of code symbols (M) for block interleaving is 26, and the numbers of code symbols (0-25) in these schematic diagrams represent the order in which code symbols are input. In this example, the column value (C) is set to 4, which means that the encoded symbols are to be divided into C blocks, and the column value is mutually agreed between the two ends performing interleaving and deinterleaving. In this example, the total number of encoded symbo...

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Abstract

The invention relates to an encoding method of area interlacing and solution interlacing and address encoding generator to execute the method. The area interlacing of the invention separates the encoding symbols into several equal amount according to preset train value. And collates the corresponding value in the corresponding table according to the sequence, read every encoding symbol and the first amount encoding symbol. Repeating until the last amount. Store the result to storage according to the order. Area solution interlacing is reading every inputting encoding symbol and calculating the corresponding address according to the order, and reverting the original order.

Description

technical field [0001] The present invention relates to a method for interleaving and deinterleaving in a communication system, in particular to a method and device for executing block interleaving and deinterleaving. Background technique [0002] The main function of channel coding is to detect and correct the errors caused by random noise in the transmission of the wireless communication system. The occurrence of such errors is usually scattered and scattered throughout the data. . However, in the process of transmission, sometimes a series of errors (burst errors) will occur. Such errors are likely to exceed the error correction capabilities of general encoders, and the erroneous data cannot be recovered, resulting in data loss or the need to retransmit . Interleaving is a method that can improve the ability to resist consecutive errors. Interleaving is to reassemble the original order of data, that is, code symbols, before data transmission. In this way, when a serie...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27
Inventor 杨秉忠
Owner BENQ CORP
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