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Error correction for length compatible polar codes for memory systems

A technology of polar codes and coding systems, which is applied in the field of computer memory systems and can solve problems such as error correction performance and high complexity

Pending Publication Date: 2022-07-01
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some methods of constructing length-compatible polar codes include puncture and shortening, but such methods lead to higher complexity, poorer error correction performance, or both

Method used

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  • Error correction for length compatible polar codes for memory systems
  • Error correction for length compatible polar codes for memory systems
  • Error correction for length compatible polar codes for memory systems

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Embodiment Construction

[0023] Reference will now be made in detail to the embodiments disclosed herein, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the inventive concept. It should be understood, however, that one of ordinary skill in the art may practice the inventive concept without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments.

[0024] It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first code may be referred to as a second code, and, similarly, a second code may be referred to as a first cod...

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Abstract

Inventive aspects include a polar code encoding system including a segmentation unit for receiving and segmenting input data into segmented input data units. The encoder encodes the divided input data units and generates encoded divided input data units. The multiplier unit performs matrix multiplication on the divided input data unit and the generator matrix, and generates a matrix product. The adder unit performs a matrix addition on the encoded divided input data unit and the matrix product. A combining unit combines the output of the encoder into a target codeword X. The target codeword X may be a codeword X of length N, where N = N1 + N2 +... + Nm, where each of N1, N2 to Nm is a power of two (2).

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Application Serial No. 63 / 131,308, filed December 28, 2020, which is incorporated herein by reference. technical field [0003] The present disclosure relates to computer memory systems, and more particularly, to error correction for length-compatible polar codes for memory systems. Background technique [0004] Polar codes can be used for error correction in computer memory systems. A memory device, such as a NAND flash device, can store data of a certain length. In addition to data, parity information can also be stored. The total length of data and parity may not be a power of two (2). Some methods of constructing length-compatible polar codes include puncturing and shortening, but such methods can result in higher complexity, poorer error correction performance, or both. SUMMARY OF THE INVENTION [0005] Inventive aspects include a polar code encoding syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/13G06F11/10
CPCH03M13/13G06F11/1012G06F17/16H03M13/6362H03M13/616H03M13/6505G06F11/1076
Inventor 吴炜R.皮丘马尼Z.李
Owner SAMSUNG ELECTRONICS CO LTD
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