KR20040111571A - 디지털 정보 송신 방법, 송신기, 정보 신호 수신 방법 및정보 신호를 수신하는 수신기 - Google Patents
디지털 정보 송신 방법, 송신기, 정보 신호 수신 방법 및정보 신호를 수신하는 수신기 Download PDFInfo
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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
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
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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
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/3761—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 using code combining, i.e. using combining of codeword portions which may have been transmitted separately, e.g. Digital Fountain codes, Raptor codes or Luby Transform [LT] codes
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- H03M13/63—Joint error correction and other techniques
- H03M13/635—Error control coding in combination with rate matching
- H03M13/6362—Error control coding in combination with rate matching by puncturing
- H03M13/6368—Error control coding in combination with rate matching by puncturing using rate compatible puncturing or complementary puncturing
- H03M13/6387—Complementary punctured convolutional [CPC] codes
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/007—Unequal error protection
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
Description
Claims (18)
- 상보적 패턴-맵핑된 컨볼루셔널 코드를 이용하여 다수 비트의 디지털 정보를 순방향 에러 보정(forward error correct)하는 단계와,다수의 반송파 신호를 상기 순방향 에러 보정된 비트로 변조하는 단계와,상기 반송파 신호를 송신하는 단계를 포함하는디지털 정보 송신 방법.
- 제 1 항에 있어서,상기 비트를 순방향 에러 보정하는 단계는다수의 코드 구획을 정의하는 단계와,비변동(noncatastrophic) 구획 코드를 찾는 단계와,상기 비변동 코드를 QAM 콘스텔레이션에 맵핑하는 단계를 포함하는디지털 정보 송신 방법.
- 제 2 항에 있어서,다수의 반송파 신호를 상기 순방향 에러 보정된 비트로 변조하는 단계는상기 QAM 콘스텔레이션의 동위상(in-phase) 및 직교위상(quadrature) 성분을독립적으로 진폭 편이 변조하는 단계를 포함하는디지털 정보 송신 방법.
- 제 3 항에 있어서,상기 QAM 콘스텔레이션의 동위상 및 직교위상 성분을 진폭 편이 변조하는 단계는 다수의 진폭 레벨에 대응하는 그레이 코드 맵핑된 콘스텔레이션 포인트를 사용하는디지털 정보 송신 방법.
- 제 4 항에 있어서,상기 콘스텔레이션 포인트에 맵핑될 코드 비트의 상대 값을 평가(assess)하는 단계와,더욱 중요한 비트를 상기 콘스텔레이션 포인트의 최상위 비트에 할당하는 단계를 더 포함하는디지털 정보 송신 방법.
- 제 2 항에 있어서,상기 구획 코드는 파괴된 코드를 포함하는디지털 정보 송신 방법.
- 제 1 항에 있어서,상기 코드 구획은 상측 메인 구획, 하측 메인 구획, 상측 백업 구획 및 하측 백업 구획을 포함하며, 여기서, 상기 상측 메인 구획과 상기 하측 메인 구획은 중복되지 않고, 상기 상측 백업 구획과 상기 하측 백업 구획은 중복되지 않고, 상기 상측 백업 구획은 상기 상측 메인 구획 및 상기 하측 메인 구획 양쪽의 제 1 구획과 중복되며, 상기 하측 백업 구획은 상기 상측 메인 구획 및 상기 하측 메인 구획의 제 2 구획과 중복되는디지털 정보 송신 방법.
- 제 1 항에 있어서,상기 비트를 상기 순방향 에러 보정하는 단계는상기 다수 비트에서 기 결정된 비트를 제거하여 수정된 다수의 비트를 생성하는 단계와,다수의 구획 사이에 상기 수정된 다수의 비트를 할당하는 단계와,상기 수정된 다수의 비트의 동위상 및 직교위상 성분을 QAM 콘스텔레이션에맵핑하는 단계와,다수의 진폭 레벨에 대응하는 그레이 코드 맵핑된 콘스텔레이션 포인트를 이용하여 상기 QAM 콘스텔레이션의 동위상 및 직교위상 성분을 독립적으로 진폭 편이 변조하는 단계와,상기 콘스텔레이션 포인트에 맵핑될 코드 비트의 상대 값을 평가하는 단계와,더욱 중요한 비트를 상기 콘스텔레이션 포인트에서의 최상위 비트에 할당하는 단계를 더 포함하는디지털 정보 송신 방법.
- 제 8 항에 있어서,상기 코드 구획은 상측 메인 구획, 하측 메인 구획, 상측 백업 구획 및 하측 백업 구획을 포함하며, 여기서, 상기 상측 메인 구획과 상기 하측 메인 구획은 중복되지 않고, 상기 상측 백업 구획과 상기 하측 백업 구획은 중복되지 않고, 상기 상측 백업 구획은 상기 상측 메인 구획 및 상기 하측 메인 구획 양쪽의 제 1 구획과 중복되며, 상기 하측 백업 구획은 상기 상측 메인 구획 및 상기 하측 메인 구획의 제 2 구획과 중복되는디지털 정보 송신 방법.
- 상보적 패턴-맵핑된 컨볼루셔널 코드를 이용하여 다수 비트의 디지털 정보를 순방향 에러 보정하는 수단과,다수의 반송파 신호를 상기 순방향 에러 보정된 비트로 변조하는 수단과,상기 반송파 신호를 송신하는 수단을 포함하는송신기.
- 제 10 항에 있어서,상기 상보적 패턴-맵핑된 컴볼루셔널 코드는QAM 콘스텔레이션에 맵핑된 다수의 비변동 구획을 포함하는송신기.
- 제 10 항에 있어서,상기 다수의 반송파 신호를 상기 순방향 에러 보정된 비트로 변조하는 수단은상기 QAM 콘스텔레이션의 동위상 및 직교위상 성분을 독립적으로 진폭 편이 변조하는 수단을 포함하는송신기.
- 제 12 항에 있어서,상기 QAM 콘스텔레이션의 동위상 및 직교위상 성분을 독립적으로 진폭 편이 변조하는 수단은 다수의 진폭 레벨에 대응하는 그레이 코드 맵핑된 콘스텔레이션 포인트를 이용하는송신기.
- 제 10 항에 있어서,상기 비트를 순방향 에러 보정하는 수단은상기 다수 비트에서 기 결정된 비트를 제거하여 수정된 다수의 비트를 생성하는 수단과,다수의 구획 사이에 상기 수정된 다수의 비트를 할당하는 수단과,상기 수정된 다수의 비트의 동위상 및 직교위상 성분을 QAM 콘스텔레이션에 맵핑하는 수단을 포함하는송신기.
- 다수의 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트에 의해 변조된 다수의 반송파 신호를 수신하는 단계와,상기 반송파 신호를 복조하여 상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트를 복구하는 단계와,상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트에 기초하여 출력 신호를 생성하는 단계를 포함하는정보 신호 수신 방법.
- 제 15 항에 있어서,상기 반송파 신호를 복조하는 단계는상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트가 비선형적 제한기를 통과하는 단계를 포함하는정보 신호 수신 방법.
- 다수의 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트에 의해 변조된 다수의 반송파 신호를 수신하는 수단과,상기 반송파 신호를 복조하여 상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트를 복구하는 수단과,상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트에 기초하여 출력 신호를 생성하는 수단을 포함하는정보 신호를 수신하는 수신기.
- 제 17 항에 있어서,상기 반송파 신호를 복조하는 수단은상기 상보적 패턴-맵핑된 컨볼루셔널 코딩 비트가 비선형적 제한기를 통과하는 수단을 포함하는정보 신호를 수신하는 수신기.
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US10/138,898 US7043681B2 (en) | 2002-05-03 | 2002-05-03 | Digital audio broadcasting method and apparatus using complementary pattern-mapped convolutional codes |
US10/138,898 | 2002-05-03 | ||
PCT/US2003/012224 WO2003094359A1 (en) | 2002-05-03 | 2003-04-21 | Digital audio broadcasting method and apparatus using complementary pattern-mapped convolutional codes |
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KR (1) | KR101023311B1 (ko) |
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WO2007066985A1 (en) * | 2005-12-08 | 2007-06-14 | Electronics And Telecommunications Research Institute | Apparatus and method for generating soft bit metric and m-ary qam receiving system using the same |
KR100758306B1 (ko) * | 2005-12-08 | 2007-09-12 | 한국전자통신연구원 | 소프트 비트 매트릭 발생 장치 및 그 방법과 그를 이용한다치 레벨 qam 수신시스템 |
US10123315B2 (en) | 2014-10-15 | 2018-11-06 | Asustek Computer Inc. | Method and apparatus for enhancing channel capacity and spectral efficiency in a wireless communication system |
KR20220029623A (ko) * | 2013-10-04 | 2022-03-08 | 삼성전자주식회사 | 송신 장치 및 그의 신호 처리 방법 |
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US20040218519A1 (en) * | 2003-05-01 | 2004-11-04 | Rong-Liang Chiou | Apparatus and method for estimation of channel state information in OFDM receivers |
CN100394695C (zh) * | 2003-12-18 | 2008-06-11 | 中国科学院半导体研究所 | 适用于频率分集传输的互补卷积码构造方法 |
US7853859B2 (en) * | 2004-01-23 | 2010-12-14 | Broadcom Corporation | Convolutional coding method for multi-band communications |
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CN1650527A (zh) | 2005-08-03 |
JP4522255B2 (ja) | 2010-08-11 |
AU2003221732B2 (en) | 2008-07-10 |
WO2003094359A1 (en) | 2003-11-13 |
TWI261986B (en) | 2006-09-11 |
MXPA04010385A (es) | 2005-02-17 |
KR101023311B1 (ko) | 2011-03-18 |
BR0309591A (pt) | 2005-02-09 |
CA2482992C (en) | 2014-10-14 |
CN1650527B (zh) | 2010-05-12 |
AU2003221732A1 (en) | 2003-11-17 |
AR039509A1 (es) | 2005-02-23 |
US7043681B2 (en) | 2006-05-09 |
RU2313175C2 (ru) | 2007-12-20 |
EP1502357A4 (en) | 2006-05-17 |
JP2005525019A (ja) | 2005-08-18 |
EP1502357A1 (en) | 2005-02-02 |
US20030212946A1 (en) | 2003-11-13 |
TW200402208A (en) | 2004-02-01 |
RU2004135327A (ru) | 2005-05-27 |
CA2482992A1 (en) | 2003-11-13 |
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