Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method and apparatus for encoding and decoding ldpc codes

A coding and decoding technology, applied in the field of communication, to achieve high throughput, maintain high-quality coding, and improve the effect of decoding convergence

Active Publication Date: 2020-09-08
HUAWEI TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While existing channel coding methods have proven to perform well in various scenarios, research continues to provide mature solutions for achieving high data throughput with appropriate encoding / decoding resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for encoding and decoding ldpc codes
  • Method and apparatus for encoding and decoding ldpc codes
  • Method and apparatus for encoding and decoding ldpc codes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 1 Possible application scenarios according to the present disclosure are shown. like figure 1 As shown, at least one of the terminals (for example, user equipment (user equipment), UE for short) is connected to a radio access network (radio access network, RAN for short) and a core network (core network, CN for short). The techniques described in this disclosure can be applied to 5G communication systems or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single Systems for Carrier Frequency Division Multiple Access and other wireless access technologies. In addition, the techniques described in this disclosure may also be applied to evolved communication systems. In a possible implementation manner, the terminal may be connected to an Internet Protocol (Internet Protoco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A highly efficient decodable quasi-cyclic low-density parity check (Quasi-Cyclic Low-Density Parity-Check, QC-LDPC) code is provided, which is based on a base matrix of an irregular QC-LDPC matrix, the base matrix consisting of composed of columns and rows, the columns can be divided into variable nodes corresponding to punctures (i.e., variable nodes corresponding to information bits that are used by the encoder but not sent to the decoder, or essentially considered as having no received by the decoder), and columns corresponding to non-punctured variable nodes, while the rows can be divided into high-density rows (ie, rows with a weight higher than the first weight) and low-density rows ( That is, the weight of the row is lower than the second weight, wherein the second weight is equal to or less than the first weight), where the matrix defined by the overlap of the low-density row and the column corresponding to the non-punched variable node Can be divided into orthogonal row groups.

Description

technical field [0001] This disclosure relates to the field of communications, and more particularly to techniques for encoding and decoding data. Background technique [0002] A low density parity check (LDPC) code is a channel coding used in a forward error correcting (FEC) scheme. LDPC codes are well known for their good performance and have received great attention in recent years. This is due to their ability to achieve performance close to the Shannon limit, their ability to design encodings that achieve high parallelization in hardware, and their support for high data rates. Therefore, many currently valid telecommunication standards use LDPC codes in their physical layer FEC schemes. LDPC codes are considered as coding standards for next-generation communication systems. [0003] Quasi-Cyclic Low-Density Parity-Check (Quasi-Cyclic Low-Density Parity-Check, QC-LDPC) codes are based on the base matrix of the irregular QC-LDPC matrix, the base matrix is ​​composed of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/11
CPCH03M13/116H03M13/1137H03M13/114H03M13/618H03M13/6362H03M13/6393H03M13/6502H03M13/6516H03M13/6561H03M13/036H03M13/1105H03M13/616H04L1/0041
Inventor 尤里亚·谢尔盖维奇·舒尔金帕维尔·阿纳托利耶维奇·潘特雷夫阿列克赛·亚历山德罗维奇·莱图诺夫斯凯埃寥尔·埃尔达洛维奇·加萨诺夫格列布·维亚科斯拉沃维奇·卡拉谢尔夫伊万·列昂尼多维奇·马祖连科
Owner HUAWEI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com