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Data encoding method and device

A technology of data encoding and data bits, applied in the directions of encoding, encoding components, adjusting channel encoding, etc., can solve the problems of unstable transmission of data transmission, and achieve the effect of stable transmission

Active Publication Date: 2022-04-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] The embodiment of the present invention provides a data encoding method and device to at least solve the problem of unstable transmission after performing quasi-cyclic LDPC encoding on the transmission data in the related art

Method used

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  • Data encoding method and device

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Embodiment 1

[0066] In this embodiment, a data encoding method is provided, figure 1 is a flowchart of a data encoding method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0067] Step S102, performing quasi-cyclic LDPC encoding on the information packet bit sequence to obtain an LDPC codeword sequence, and determining the size of a one-dimensional limited-length circular buffer according to the LDPC codeword sequence;

[0068] Step S104, select a redundant version value from a plurality of predetermined redundant version values, and determine to read in the one-dimensional limited-length circular buffer according to the selected redundant version value and predefined parameters The starting position of the bit sequence to be transmitted; wherein, the predefined parameters include at least one of the following: promotion value, the total number of columns of the basic graph matrix, the total number of rows of the...

Embodiment 1

[0102] In this embodiment, a quasi-cyclic LDPC coded data processing method is provided, which can be used in an NR (New Radio Access Technology, new radio access technology) communication system. The method proposed in this optional embodiment can be used in LTE mobile communication systems or future fifth generation (5G) mobile communication systems or other wireless wired communication systems, and the data transmission direction is that the base station sends data to mobile users (downlink transmission service data ), or the data transmission direction is that the mobile user sends data to the base station (uplink transmission service data). A mobile subscriber includes a mobile device, access terminal, user terminal, subscriber station, subscriber unit, mobile station, remote station, remote terminal, user agent, user device, user equipment, or some other term. The base station includes an access point (Access Point, AP), or may be called a node B (node ​​B), a radio netw...

Embodiment 2

[0156] In this embodiment, a data encoding device is also provided, which is used to implement the above embodiments and preferred implementation modes, and those that have been explained will not be repeated here. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0157] According to another embodiment of the present invention, a data encoding device is also provided, including:

[0158] An acquisition module, configured to acquire data to be sent;

[0159] An interleaving module, connected to the acquisition module, for performing quasi-cyclic LDPC encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved LDPC codeword s...

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Abstract

The present invention provides a data encoding method and device, wherein the method includes: acquiring data to be sent; performing quasi-cyclic LDPC encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved After the LDPC codeword sequence; the LDPC codeword sequence after the interleaving starts from the starting position to perform cyclic bit selection to obtain the codeword sequence after the rate matching, wherein the starting position is determined according to predetermined parameters; the codeword sequence after the rate matching is sent . By adopting the above solution, the problem of unstable transmission after quasi-cyclic LDPC encoding is solved in the related art, and stable transmission after quasi-cyclic LDPC encoding is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data encoding method and device. Background technique [0002] In the related art, once there are more filling bits in the quasi-cyclic LDPC encoding process, the encoding / decoding efficiency of the LDPC code will be reduced, and a TBS table design rule is provided, so that when performing LDPC encoding, there are as few or no filling bits as possible. ; and for the code block groups in the transmission block, there may be some short board effects caused by the unequal number of code blocks in each code block group, and the Kmax design method in the code block segmentation method is provided, so that the code in each code block group The number of blocks is equal to avoid poor overall performance due to the large number of code blocks in some code block groups; and, for the poor performance of quasi-cyclic LDPC coding in high-order modulation or fading channels, a code word i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0013H04L1/0061H04L1/0071H03M13/1162H03M13/2707H03M13/635H04L1/00H04L1/1874H04L1/1819H04L1/0041H04L1/0057H03M13/116H03M13/6306
Inventor 李立广徐俊许进
Owner ZTE CORP
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