Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method and apparatus for encoding and decoding data using low density parity check code in a wireless communication system

A technology for low-density parity and encoded data, applied in the field of encoding and decoding using low-density parity-check codes, and can solve problems such as complex expressions, large storage space, and large amounts of calculations

Inactive Publication Date: 2007-11-21
LG ELECTRONICS INC
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the size of the parity check matrix H in the actual communication system is about 1000×2000 or larger, the process of encoding and decoding requires a lot of calculations, complex expressions, and large storage space

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
  • A method and apparatus for encoding and decoding data using low density parity check code in a wireless communication system
  • A method and apparatus for encoding and decoding data using low density parity check code in a wireless communication system
  • A method and apparatus for encoding and decoding data using low density parity check code in a wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like parts.

[0060] Figure 1 is a schematic diagram of a wireless communication system in which an embodiment of the present invention is implemented. In FIG. 1 , a transmitter 10 and a receiver 30 communicate over a wireless channel 20 . From a data source 11 in a transmitter 10, k bits of source data "u" are processed by an LDPC encoder 13 such that the source data is encoded and processed as a code word "c" of n bits. The code word "c" is then sent via the antenna 17 after being modulated by the modulation module 15 for wireless transmission. The signal transmitted via the radio channel 20 is received by an antenna 31 in a receiver 30 . Thereafter, in the receiver 30, an operation opposite to that of the transmitter ...

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 method of encoding data using low density parity check (LDPC) code defined by a mxn parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of zxz sub-matrices of which row weights and column weights are ''0'' or ''1 ''.

Description

technical field [0001] The present invention relates to a coding and decoding method in a wireless communication system, more specifically, to a method and device for coding and decoding using a Low Density Parity Check (LDPC) code in a wireless communication system. Although the invention is suitable for a wide range of applications, it is particularly suitable for simplifying complex operations and efficiently utilizing storage space. Background technique [0002] In general, encoding means a process in which data is encoded at a transmitting end so that a receiving end can compensate for errors occurring in signal distortion and signal loss during transmission of data through an air connection interface, and restore original data. Decoding is a process in which the encoded data from the sending end is restored to its original data at the receiving end. [0003] Encoding methods using low density parity check (LDPC) codes are known. The LDPC code is an error-correcting c...

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 Applications(China)
IPC IPC(8): H03M13/00
Inventor 吴旼锡丁奎赫赵基亨
Owner LG ELECTRONICS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com