KR20080095908A - Ldpc 인코딩 방법 및 장치 - Google Patents
Ldpc 인코딩 방법 및 장치 Download PDFInfo
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- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
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- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
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- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1148—Structural properties of the code parity-check or generator matrix
- H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
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Abstract
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Claims (21)
- LDPC 인코더를 이용하여 정보를 인코딩하는 방법으로서,생성될 코드워드들의 길이를 표시하는 제1 코드워드 길이 정보를 수신하는 단계;상기 코드워드 길이 정보를 LDPC 인코더의 제어 입력으로 제공하는 단계;인코딩될 데이터를 수신하도록 상기 LDPC 인코더를 동작시키는 단계; 및생성될 상기 코드워드들의 표시된 길이에 대한 수신된 데이터로부터 코드워드들을 생성하도록 상기 LDPC 인코더를 동작시키는 단계를 포함하는,LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제1항에 있어서,생성될 추가의 코드워드들의 길이를 표시하는 제2 코드워드 길이 정보를 수신하는 단계를 더 포함하는데, 상기 추가의 코드워드들의 길이는 상기 제1 코드워드 길이 정보에 대응하는 제1 개수의 비트들과 상이한 제2 개수의 비트들인 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제2항에 있어서,상기 제1 코드워드 길이 정보는 제1 선택된 코드 리프팅 팩터 신호인 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제1항에 있어서,상기 인코더의 모듈에 제1 세트의 코드 구조 서술 정보를 저장하는 단계; 및LDPC 인코딩 동작을 실행하기 위해 저장된 제1 세트의 코드 서술 정보를 이용하는 단계를 더 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제4항에 있어서,상기 인코더의 상기 모듈에 제2 세트의 코드 구조 서술 정보를 저장하는 단계를 더 포함하며, 상기 제2 세트의 코드 구조 서술 정보는 상기 제1 세트의 코드 구조 정보가 대응하는 코드 구조와는 상이한 구조를 갖는 LDPC 코드에 대응하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제5항에 있어서,제1 장치와 통신할 경우, 상기 제1 세트의 코드 구조 정보를 이용하여 데이터를 인코딩하는 단계; 및제2 장치와 통신할 경우, 상기 제2 세트의 코드 구조 정보를 이용하여 데이터를 인코딩하는 단계를 더 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제6항에 있어서,상기 제1 세트의 코드 구조 정보는 상기 제2 세트의 코드 구조 정보가 사용되는 때로부터 적시에 상이한 포인트에서 사용되는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제4항에 있어서,상기 제1 세트의 코드 서술 정보를 저장하는 단계는, 상기 제1 세트의 코드 서술 정보에 대응하는 코드워드들이 사용될 것을 나타내는 신호의 수신에 응답하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제4항에 있어서,상기 제1 세트의 코드 서술 정보를 저장하는 단계는 상기 제1 세트의 코드 서술 정보에 대응하는 코드 구조에 따라 인코딩된 코드워드들을 포함하는 신호의 수신에 응답하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제4항에 있어서,상기 제1 세트의 코드 서술 정보는 인코더 제어 명령들을 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제10항에 있어서,각각의 인코더 제어 명령은 판독 및 기록 동작 표시자 중 하나를 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제11항에 있어서,각각의 인코더 제어 명령은 순환 제어 정보를 더 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 제11항에 있어서,각각의 인코더 제어 명령은 메모리 어드레스 정보를 더 포함하는 것을 특징으로 하는 LDPC 인코더를 이용하여 정보를 인코딩하는 방법.
- 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법으로서,제1 시간 기간 동안, 제1 세트의 코드 구조 서술 정보를 LDPC 인코더의 모듈에 저장하는 단계 -여기서, 상기 제1 세트의 코드 구조 서술 정보는 제1 LDPC 코드 구조에 대응함-;상기 저장된 제1 세트의 코드 서술 정보를 이용하여 LDPC 인코딩 연산을 실행하도록 상기 LDPC 인코더를 동작시키는 단계;제2 시간 기간 동안, 제2 세트의 코드 구조 서술 정보를 LDPC 인코더의 모듈에 저장하는 단계 -여기서, 상기 제2 세트의 코드 구조 서술 정보는 제2 LDPC 코드 구조에 대응함-; 및상기 저장된 제2 세트의 코드 서술 정보를 이용하여 LDPC 인코딩 연산을 실행하도록 상기 인코더를 동작시키는 단계를 포함하는,프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제14항에 있어서,상기 제1 및 제2 세트의 저장된 코드 구조 서술 정보는 인코딩 연산들을 실행하기 위해 상이한 시간 기간 동안 이용되는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제14항에 있어서,상기 제1 세트의 코드 서술 정보를 저장하는 단계는, 상기 제1 세트의 코드 서술 정보에 대응하는 코드워드들이 사용될 것을 나타내는 신호의 수신에 응답하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제14항에 있어서,상기 제1 세트의 코드 서술 정보를 저장하는 단계는, 상기 제1 세트의 코드 서술 정보에 대응하는 코드 구조에 따라 인코딩된 코드워드들을 포함하는 신호의 수신에 응답하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제14항에 있어서,상기 제1 세트의 코드 서술 정보는 인코더 제어 명령들을 포함하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제18항에 있어서,각각의 인코더 제어 명령은 판독 및 기록 연산 표지자 중 하나를 포함하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제19항에 있어서,각각의 인코더 제어 명령은 순환 제어 정보를 더 포함하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
- 제20항에 있어서,각각의 인코더 제어 명령은 메모리 어드레스 정보를 더 포함하는 것을 특징으로 하는 프로그램 가능한 LDPC 인코더 시스템을 구현하는 방법.
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