US 2024/0072826 A1 · Adaptive Low-Density Parity Check Decoder

Abstract

The present disclosure describes apparatuses and methods for implementing an adaptive low-density parity check (LDPC) decoder. In various aspects, an adaptive LDPC decoder processes a first portion of data using first parameters effective to change a status of the LDPC decoder. The LDPC decoder selects second parameters of the LDPC decoder based on the status of the LDPC decoder. The LDPC decoder then processes a second portion of the data with the LDPC decoder using the second parameters and provides decoded data of the channel based on at least the processing the first portion of the data using the first parameters and the processing of the second portion of the data using the second parameters. By adaptively altering the decoding parameters based the status of the decoder, the adaptive LDPC decoder may decode channel data in fewer decoding iterations or with a higher success rate, thereby improving LDPC decoding performance.

Claims20

Dependent claims

A method for adaptive low-density parity check decoding, comprising:

processing a first portion of data of a channel with a low-density parity check (LDPC) decoder using first parameters effective to change a status of the LDPC decoder;
selecting second parameters of the LDPC decoder based on the status of the LDPC decoder;
processing a second portion of the data with the LDPC decoder using the second parameters;
and
providing decoded data of the channel based on at least the processing the first portion of the data with the first parameters and the processing of the second portion of the data with the second parameters.

2 more elements

An apparatus comprising:

a data interface configured for communication of data through a channel;
a low-density parity check (LDPC) decoder;
and
an adaptive controller for the LDPC decoder, the adaptive controller configured to:
process, with the LDPC decoder and using first parameters, a first block of data received from the channel effective to change metrics of the LDPC decoder;
select second parameters for the LDPC decoder based on the metrics of the LDPC decoder;
process, with the LDPC decoder and using the second parameters, a second block of the data;
and
provide decoded data of the channel based on at least the processing of the first block using the first parameters and the processing of the second block using the second parameters.

6 more elements

A System-on-Chip (SoC) comprising:

a media interface to access storage media of a storage media system;
a host interface to communicate with a host system;
a low-density parity check (LDPC) decoder;
and
an adaptive controller for the LDPC decoder configured to:
process, with the LDPC decoder and using first parameters, a first block of data received from the storage media system effective to change a status of the LDPC decoder;
select second parameters for the LDPC decoder based on the status of the LDPC decoder;
process, with the LDPC decoder and using the second parameters, a second block of the data;
and
provide decoded data of the storage media system based on at least the processing of the first block of data using the first parameters and the processing of the second block of data using the second parameters.

7 more elements

Dependencies are inferred from the claim text.

Adaptive Low-Density Parity Check Decoder

Life of this patent

Adaptive Low-Density Parity Check Decoder

Life of this patent

Abstract

Claims20