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Method and device for realizing ldpc code encoding

A technology of LDPC codes and encoding devices, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems such as unsatisfactory cost and complexity

Active Publication Date: 2016-12-21
ALLWINNER TECH CO LTD
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Problems solved by technology

However, traditional encoding methods are still unsatisfactory in terms of cost and complexity

Method used

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  • Method and device for realizing ldpc code encoding
  • Method and device for realizing ldpc code encoding
  • Method and device for realizing ldpc code encoding

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Experimental program
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Embodiment 1

[0207] Attached below Figure 7 Embodiment 1 of the present invention is further described:

[0208] Step S101, initialization.

[0209] Set LDPC code encoding code length and code rate, clear check code buffer and e buffer and process control counter;

[0210] Step S102, preprocessing.

[0211] It is mainly to cooperate with e buffer to complete Bs T =e calculation, the result is stored in the e buffer. When the effective signal of the information code is high, first judge the information code S j Whether it is 0; if it is not 0, the matrix B will be selected according to the code length and code rate, and n-k 0 / 1 elements will be generated according to a certain column of matrix elements, which will be added to the n-k registers of the e buffer and stored in the e buffer in the original register of the device. The method for generating the elements in the column of matrix B is described as follows: In each column of the macro matrix B, there are 24×(1-R) ​​Z-length vec...

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Abstract

The invention discloses a coding <{EN0}>method and device of realizing LDPC codes; the method comprises the following steps: step A: setting code length n and code rate R of the LDPC code, initializing and updating parameters; step B: when the information code S with the length of k is inputted, converting the information code S into an intermediate variable e with the length of n-k; step C: iterating a solution equation A*pT=e so as to obtain a checking code p. Presetting an iteration initial address, starting iteration from the initial address to obtain the checking code, then generating an iteration address in real time, respectively reading the intermediate variable e from an e buffer according to the iteration address, reading the checking code of known present position from a checking code buffer, carrying out GF(2) iteration solution to obtain the checking code of next position, and writing an operation result to a predesignated position of the checking code buffer according to the iteration address. The method combines presetting iteration with iteration solution so as to realize LDPC linear complex design, thereby realizing LDPC coding zero delay and high throughput.

Description

technical field [0001] The invention relates to the technical field of wireless local area network channel coding, in particular to a method and device for realizing LDPC code coding. Background technique [0002] The purpose of communication is to transmit information from the source to the destination in a timely and reliable manner. However, in the digital communication system, there are various noises and interferences in the channel, which reduces the accuracy and reliability of the transmitted information. Especially in recent years, with the processing and exchange of a large amount of data information, people's demand for high-efficiency and high-reliability digital communication systems is increasing, making the performance of high reliability more urgent. Therefore, the key to designing a digital communication system is how to control the errors caused by various noises and interferences, so that data can be transmitted reliably and accurately. [0003] Theoretic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 熊富贵
Owner ALLWINNER TECH CO LTD
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