KR20070112366A - 교차-안테나 회전 및 반전에 의한 stbcmimo―ofdm 피크-대-평균 전력비 감소 - Google Patents
교차-안테나 회전 및 반전에 의한 stbcmimo―ofdm 피크-대-평균 전력비 감소 Download PDFInfo
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- KR20070112366A KR20070112366A KR1020077015574A KR20077015574A KR20070112366A KR 20070112366 A KR20070112366 A KR 20070112366A KR 1020077015574 A KR1020077015574 A KR 1020077015574A KR 20077015574 A KR20077015574 A KR 20077015574A KR 20070112366 A KR20070112366 A KR 20070112366A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0625—Transmitter arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
- H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
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- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (5)
- Y 전송 안테나들을 갖는 MIMO-OFDM 시스템에서 STBC MIMO-OFDM 신호들의 피크-대-평균 전력비(PAPR) 감소를 위한 신호 스크램블링 방법으로서,각 전송 안테나에 대한 상기 신호의 부호들의 OFDM 시퀀스를 동일 사이즈의 M 개의 서브블록들로 분할하고, 본래 OFDM 시퀀스로부터 [2Y]M 변경된 시퀀스 세트들을 생성하기 위해 모든 전송 안테나들에 대하여 서브클록와이즈 회전 및 반전들을 수행하는 단계; 및미리 결정된 기준에 기초하여, OFDM 시퀀스들의 결과적인 상기 세트들로부터 전송을 위해 최선 PAPR 특성을 갖는 하나를 선택하는 단계를 포함하는,신호 스크램블링 방법.
- 제 1 항에 있어서,각 세트에서 Y 시퀀스들의 최대 PAPR 값을 계산하고, 전송을 위해 최소의 최대치를 갖는 임의의 세트를 선택함으로써, 상기 미리 결정된 기준은 모든 [2Y]M 시퀀스 세트들에 대한 최대치들을 식별하는 단계를 포함하는,신호 스크램블링 방법.
- 제 1 항에 있어서,전송 시퀀스들의 제1 세트를 획득하기 위해 각 안테나에 대하여 제1 서브블록에 대한 CARI가 수행되고, PAPR은 상기 제1 세트의 모든 시퀀스들에 대하여 계산되고, 최소의 최대 PAPR을 갖는 세트가 계속 유지되고; 및 모든 전송 안테나들에 대하여 상기 연속적인 서브블록들을 위한 동일 절차를 연속적으로 수행함으로써, 고려되는 변경들의 개수가 감소되고, PAPR이 점진적으로 감소하고, 최종의 결과적 시퀀스가 전송을 위해 선택되는,신호 스크램블링 방법.
- 제 1 항에 있어서,랜덤 숫자들을 갖는 V×M 차원 매트릭스가 생성되는데, V는 변경들의 총 개수이고; 상기 매트릭스의 각 아이템은 상기 M 개의 서브블록들에 대하여 수행되는 2Y 미리 결정된 상이한 변경 동작들을 나타내는 [1, 2Y]에 걸쳐 균일하게 분포되는 랜덤 정수이고, V 개의 상이한 상기 시퀀스 세트들을 생성하고; 및 전송을 위해 최소의 최대 PAPR을 갖는 시퀀스를 선택함으로써, 신호를 디스크램블링하기 위해 필요한 사이드 정보가 상당히 감소하는,신호 스크램블링 방법.
- 제 1 항에 있어서,전송 안테나들의 개수(Y)는 2 개인,신호 스크램블링 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US63423604P | 2004-12-08 | 2004-12-08 | |
US60/634,236 | 2004-12-08 | ||
US11/013,934 US7339884B2 (en) | 2004-12-08 | 2004-12-16 | STBC MIMO-OFDM peak-to-average power ratio reduction by cross-antenna rotation and inversion |
US11/013,934 | 2004-12-16 |
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KR20070112366A true KR20070112366A (ko) | 2007-11-23 |
KR100916870B1 KR100916870B1 (ko) | 2009-09-09 |
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KR1020077015574A KR100916870B1 (ko) | 2004-12-08 | 2005-01-06 | 교차-안테나 회전 및 반전에 의한 stbcmimo―ofdm 피크-대-평균 전력비 감소 |
Country Status (6)
Country | Link |
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US (2) | US7339884B2 (ko) |
EP (1) | EP1829259B1 (ko) |
JP (1) | JP4511602B2 (ko) |
KR (1) | KR100916870B1 (ko) |
CN (1) | CN101073217B (ko) |
WO (1) | WO2006062528A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101067644B1 (ko) * | 2009-03-10 | 2011-09-27 | 서울대학교산학협력단 | 부분 비트 반전 선택 사상 기법을 이용한 직교 주파수 분할다중화 시스템의 최대전력 대 평균전력의 비 감소방법 |
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WO2006060651A2 (en) * | 2004-12-02 | 2006-06-08 | New Jersey Institute Of Technology | Method and/or system for reduction of papr |
TWI446763B (zh) | 2006-01-11 | 2014-07-21 | Interdigital Tech Corp | 以不等調變及編碼方法實施空時處理方法及裝置 |
WO2012030319A2 (en) | 2009-06-26 | 2012-03-08 | Hypres, Inc. | System and method for controlling combined radio signals |
JP5320260B2 (ja) * | 2009-10-29 | 2013-10-23 | 日本放送協会 | Ofdm信号送信装置 |
US8693563B2 (en) * | 2010-02-18 | 2014-04-08 | Electronics And Telecommunications Research Institute | Method of transmitting and receiving orthogonal frequency division multiplexing (OFDM) signal using multiple antennas, and transmitter and receiver thereof |
US8787873B1 (en) | 2011-11-04 | 2014-07-22 | Plusn Llc | System and method for communicating using bandwidth on demand |
US9401823B2 (en) | 2013-11-26 | 2016-07-26 | Plusn Llc | System and method for radio frequency carrier aggregation |
CN103795674B (zh) * | 2014-01-22 | 2017-02-01 | 浙江师范大学 | 一种降低mimo‑ofdm系统的papr的方法 |
JP5812179B2 (ja) * | 2014-11-19 | 2015-11-11 | 株式会社ソシオネクスト | スプリアス測定装置及びそれを利用した受信装置,通信システム |
KR101603477B1 (ko) * | 2015-06-09 | 2016-03-21 | 연세대학교 원주산학협력단 | 다중안테나 sc-fdma 시스템을 위한 신호검출 방법 및 장치 |
CN106209716B (zh) * | 2016-06-30 | 2019-06-04 | 电子科技大学 | 一种降低大规模mu-mimo-ofdm系统峰均功率比的方法 |
CN108270708B (zh) * | 2016-12-30 | 2020-07-07 | 维沃移动通信有限公司 | 一种降低papr的信息传输方法、发送端及接收端 |
KR102115074B1 (ko) * | 2017-02-06 | 2020-05-25 | 세종대학교산학협력단 | Slm을 이용한 papr 저감 장치 및 방법 |
CN109194603B (zh) * | 2018-11-21 | 2019-06-14 | 济南大学 | 降低mimo-ofdm系统峰均功率比的导向交织方法 |
CN111865858B (zh) * | 2019-04-30 | 2022-01-11 | 华为技术有限公司 | 一种基于部分传输序列技术的边信息传输方法和装置 |
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WO2006060651A2 (en) | 2004-12-02 | 2006-06-08 | New Jersey Institute Of Technology | Method and/or system for reduction of papr |
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Cited By (1)
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KR101067644B1 (ko) * | 2009-03-10 | 2011-09-27 | 서울대학교산학협력단 | 부분 비트 반전 선택 사상 기법을 이용한 직교 주파수 분할다중화 시스템의 최대전력 대 평균전력의 비 감소방법 |
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US7339884B2 (en) | 2008-03-04 |
JP2008523713A (ja) | 2008-07-03 |
CN101073217A (zh) | 2007-11-14 |
USRE41433E1 (en) | 2010-07-13 |
EP1829259A1 (en) | 2007-09-05 |
CN101073217B (zh) | 2011-11-16 |
JP4511602B2 (ja) | 2010-07-28 |
EP1829259A4 (en) | 2012-01-11 |
EP1829259B1 (en) | 2018-09-12 |
WO2006062528A1 (en) | 2006-06-15 |
US20060120268A1 (en) | 2006-06-08 |
KR100916870B1 (ko) | 2009-09-09 |
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