KR100697578B1 - 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한 방법 및 장치 - Google Patents
심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한 방법 및 장치 Download PDFInfo
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Abstract
Description
원격국 (6) 의 상기 동작은 제어 프로세서 (220) 에 의해 제어된다.
역방향 링크 신호 (12) 는 안테나 (130) 에 의해 기지국 (4) 에서 수신되며, 듀플렉서 (128) 을 통하여 라우팅되고, 수신기 (RCVR; 150) 로 제공된다. 수신기 (150) 은 신호를 필터링하고, 증폭하고, 복조하고, 양자화하여 디지털호된 I 및 Q 기저대역 신호를 획득한다. 기지국 신호는 복조기 (DEMOD; 152) 에 제공된다.
복조기 (152) 는 역방향 링크에서 사용되는 변조 방식에 따라서 기지국 신호를 복조한다. 그 후, 복조기 (152) 는 복조된 데이터를 디코더 (154) 로 제공한다. 디코더 (154) 는 디코더 (210) 의 기능과 본질적으로 기능한 기능을 제공하도록 구성된다. 디코더 (154) 는 디코딩된 데이터를 데이터 싱크 (156) 으로 제공한다.
Claims (23)
- 데이터 패킷의 송신을 수신하여 수신된 패킷을 획득하는 제 1 수신 단계;상기 데이터 패킷의 하나 이상의 재송신을 수신하여 재송신된 패킷을 획득하는 제 2 수신 단계;누산된 패킷을 획득하도록 상기 수신된 패킷을 상기 재송신된 패킷과 누산하는 단계; 및상기 누산된 패킷을 디코딩하는 단계를 포함하고,상기 누산 단계는,상기 수신된 패킷의 코드 심볼을 제 1 이득 인자로 스케일링하는 단계;상기 재송신된 패킷 각각의 코드 심볼을 제 2 이득 인자들로 스케일링하는 단계; 및상기 수신된 패킷의 상기 코드 심볼들을 상기 재송신된 패킷의 상기 코드 심볼과 합성하여 상기 누산된 패킷을 획득하는 단계를 포함하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 제 1 수신 단계는,상기 데이터 패킷의 상기 송신의 하나 이상의 신호 경로를 복조하여 제 1 파일럿 신호와 제 1 필터링된 데이터 심볼들을 획득하는 단계;상기 하나 이상의 신호 경로 각각에 대하여 상기 제 1 필터링된 데이터 심볼들과 상기 제 1 파일럿 신호들간의 내적을 수행하여 제 1 스칼라 값들을 획득하는 단계; 및상기 하나 이상의 신호 경로의 상기 제 1 스칼라 값을 합성하여 제 1 합성된 스칼라 값을 획득하는 단계를 포함하되,상기 제 1 합성된 스칼라 값은 상기 수신된 패킷을 포함하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 제 2 수신 단계는,상기 데이터 패킷의 상기 하나 이상의 재송신의 하나 이상의 신호 경로를 복조하여 제 2 파일럿 신호와 제 2 필터링된 데이터 심볼을 획득하는 단계;상기 하나 이상의 신호 경로 각각에 대하여 상기 제 2 필터링된 데이터 심볼과 상기 제 2 파일럿 신호간의 내적을 수행하여 제 2 스칼라 값을 획득하는 단계; 및상기 하나 이상의 신호 경로의 상기 제 2 스칼라 값을 합성하여 제 2 합성된 스칼라 값을 획득하는 단계를 포함하되,상기 제 2 합성된 스칼라 값은 상기 재송신된 패킷들을 포함하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 삭제
- 제 1 항에 있어서,상기 제 1 이득 인자는 상기 송신의 수신된 신호의 신호 대 잡음 측정값에 따라서 정의되고,상기 제 2 이득 인자들은 상기 하나 이상의 재송신의 수신된 신호의 신호 대 잡음 측정값에 따라 정의되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 누산 단계는 상기 수신된 패킷의 선택된 심볼을 상기 재송신된 패킷의 심볼로 대체하여 상기 누산된 패킷을 획득하는 단계를 포함하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 누산 단계는 상기 수신된 패킷의 심볼을 상기 재송신된 패킷의 심볼로 인터리빙하여 상기 누산된 패킷을 획득하는 단계를 포함하고,상기 디코딩 단계는 상기 누산된 패킷의 레이트에 따라서 수행되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 데이터 패킷의 상기 하나 이상의 재송신은 제 2 데이터 패킷의 송신과 동시에 발생하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 8 항에 있어서,상기 데이터 패킷의 상기 하나 이상의 재송신은 상기 제 2 데이터 패킷의 반복된 심볼을 상기 데이터 패킷의 코드 심볼로 대체함으로써 달성되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 8 항에 있어서,상기 데이터 패킷의 상기 하나 이상의 재송신은 상기 제 2 데이터 패킷을 변경된 코드 레이트로 인코딩함으로써 달성되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 8 항에 있어서,상기 데이터 패킷의 상기 하나 이상의 재송신은 추가 코드 채널을 통하여 상기 데이터 패킷을 송신함으로써 달성되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 하나 이상의 재송신의 각각은 상기 송신보다 낮은 비트 당 에너지로 수행되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 12 항에 있어서,상기 하나 이상의 재송신의 각각은 상기 데이터 패킷의 정확한 디코딩을 계속 허용하는 최소 비트 당 에너지로 수행되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 13 항에 있어서,상기 최소 비트 당 에너지는 상기 송신의 수신된 신호의 측정된 ES/IO 와 요구된 ES/IO 에 따라 계산되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 13 항에 있어서,상기 최소 비트 당 에너지는 상기 송신과 상기 하나 이상의 재송신의 수신된 신호의 요구된 ES/IO 와 누산된 ES/IO 에 따라 계산되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 재송신된 패킷 각각은 상기 수신된 패킷의 일부분을 포함하는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 16 항에 있어서,상기 재송신된 패킷의 각각은 상기 수신된 패킷의 지속 기간 동안 측정된 ES/IO 에 기초하고 있는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 제 1 항에 있어서,상기 디코딩 단계는 구속장 9 및 코드 레이트 1/2 의 컨볼루션 인코더에 대하여 수행되는 것을 특징으로 하는 데이터 패킷 디코딩 방법.
- 삭제
- 데이터 패킷의 송신을 수신하고 복조하여 수신된 패킷을 획득하고, 상기 데이터 패킷의 하나 이상의 재송신들을 수신하고 복조하여 재송신된 패킷들을 획득하는 복조 수단;누산된 패킷을 생성하도록 상기 재송신된 패킷을 상기 수신된 패킷과 누산하는 누산 수단;상기 수신된 패킷 및/또는 상기 누산된 패킷을 수신하여 저장하는 저장 수단;상기 누산된 패킷을 수신하여 디코딩하는 디코딩 수단; 및상기 데이터 패킷의 상기 하나 이상의 재송신을 제 2 데이터 패킷의 송신과 동시에 재송신하고 상기 데이터 패킷의 상기 하나 이상의 재송신의 송신 전력을 상기 데이터 패킷의 상기 송신의 송신 전력보다 낮게 조절하는 송신 수단을 구비하는 것을 특징으로 하는 데이터 패킷 디코딩 장치.
- 제 20 항에 있어서,상기 수신된 패킷과 상기 재송신된 패킷을 수신하고 스케일링하여 스케일링된 수신 패킷과 스케일링된 재송신 패킷들을 생성하는 스케일링 수단을 더 포함하되,상기 누산 수단은 상기 스케일링된 재송신 패킷을 수신하고 상기 스케일링된 수신 패킷과 누산하여 상기 누산된 패킷을 생성하는 것을 특징으로 하는 데이터 패킷 디코딩 장치.
- 삭제
- 삭제
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US08/969,319 US6101168A (en) | 1997-11-13 | 1997-11-13 | Method and apparatus for time efficient retransmission using symbol accumulation |
US8/969,319 | 1997-11-13 | ||
US08/969,319 | 1997-11-13 | ||
PCT/US1998/024155 WO1999026371A1 (en) | 1997-11-13 | 1998-11-12 | Method and apparatus for time efficient retransmission using symbol accumulation |
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KR1020067004206A Division KR100601065B1 (ko) | 1997-11-13 | 1998-11-12 | 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한방법 및 장치 |
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KR1020067016456A KR100752086B1 (ko) | 1997-11-13 | 1998-11-12 | 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한방법 및 장치 |
KR1020067004206A KR100601065B1 (ko) | 1997-11-13 | 1998-11-12 | 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한방법 및 장치 |
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KR1020067004206A KR100601065B1 (ko) | 1997-11-13 | 1998-11-12 | 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한방법 및 장치 |
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US (4) | US6101168A (ko) |
EP (4) | EP1499057B1 (ko) |
JP (3) | JP4242063B2 (ko) |
KR (3) | KR100697578B1 (ko) |
CN (3) | CN100525169C (ko) |
AU (1) | AU767672B2 (ko) |
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