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DE602006004080D1 - Steuerung des Verhältnisses von Spitzen- zu Durchschnittsleistung in drahtlosen Kommunikationssystemen - Google Patents

Steuerung des Verhältnisses von Spitzen- zu Durchschnittsleistung in drahtlosen Kommunikationssystemen

Info

Publication number
DE602006004080D1
DE602006004080D1 DE200660004080 DE602006004080T DE602006004080D1 DE 602006004080 D1 DE602006004080 D1 DE 602006004080D1 DE 200660004080 DE200660004080 DE 200660004080 DE 602006004080 T DE602006004080 T DE 602006004080T DE 602006004080 D1 DE602006004080 D1 DE 602006004080D1
Authority
DE
Germany
Prior art keywords
peak
ratio
wireless communication
control
communication systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE200660004080
Other languages
English (en)
Inventor
Daisuke Ogawa
Takashi Daketi
Hideto Furukawa
Nobukazu Fudaba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE602006004080D1 publication Critical patent/DE602006004080D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/262—Reduction thereof by selection of pilot symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • 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
    • H04L27/2621—Reduction thereof using phase offsets between subcarriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
DE200660004080 2005-01-14 2006-01-12 Steuerung des Verhältnisses von Spitzen- zu Durchschnittsleistung in drahtlosen Kommunikationssystemen Expired - Lifetime DE602006004080D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005007509A JP4619797B2 (ja) 2005-01-14 2005-01-14 無線通信システム及び無線通信装置

Publications (1)

Publication Number Publication Date
DE602006004080D1 true DE602006004080D1 (de) 2009-01-22

Family

ID=36282926

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200660004080 Expired - Lifetime DE602006004080D1 (de) 2005-01-14 2006-01-12 Steuerung des Verhältnisses von Spitzen- zu Durchschnittsleistung in drahtlosen Kommunikationssystemen

Country Status (4)

Country Link
US (1) US7782923B2 (de)
EP (1) EP1681822B1 (de)
JP (1) JP4619797B2 (de)
DE (1) DE602006004080D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4619797B2 (ja) * 2005-01-14 2011-01-26 富士通株式会社 無線通信システム及び無線通信装置
US7471583B2 (en) * 2005-09-29 2008-12-30 Hynix Semiconductor Inc. Memory device with self refresh cycle control function
US7664010B2 (en) * 2006-09-21 2010-02-16 Sharp Laboratories Of America, Inc. Systems and methods for combining reference and data signals to reduce peak to average power ratio for coherent communication systems
US7746766B2 (en) * 2006-09-21 2010-06-29 Sharp Laboratories Of America, Inc. Systems and methods for obtaining an optimum transmission format of reference signals to maximize capacity and minimize peak to average power ratio
EP2078399A2 (de) * 2006-11-02 2009-07-15 Telefonaktiebolaget LM Ericsson (PUBL) Verfahren und anordnung in einem telekommunikationssystem
JP2009168657A (ja) * 2008-01-17 2009-07-30 Japan Radio Co Ltd 衛星信号受信装置
TWI351823B (en) 2008-03-04 2011-11-01 Ind Tech Res Inst Transmission architecture of transmitter
EP2381585A4 (de) * 2008-12-25 2015-11-25 Fujitsu Ltd Signalerzeugungseinrichtung, übertragungseinrichtung, signalerzeugungsverfahren, übertragungsverfahren und kommunikationssystem
FR2945172B1 (fr) * 2009-05-04 2011-04-22 Inst Nat Sciences Appliq Procede et dispositif de transmission d'un signal multiporteuse reduisant le rapport puissance crete a puissance moyenne, programme, signal, procede et dispositif de reception correspondants
GB2482122B (en) * 2010-07-19 2014-02-19 Intellectual Ventures Holding 81 Llc Communication unit and pilot method for time varying channels
JP6323087B2 (ja) * 2014-03-13 2018-05-16 日本電気株式会社 変調装置
US10644827B2 (en) 2017-04-06 2020-05-05 Qualcomm Incorporated Systems and methods for dynamic switching between waveforms on downlink

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5381449A (en) * 1990-06-12 1995-01-10 Motorola, Inc. Peak to average power ratio reduction methodology for QAM communications systems
JP3311951B2 (ja) * 1996-12-20 2002-08-05 富士通株式会社 符号多重送信装置
JPH11205276A (ja) 1998-01-20 1999-07-30 Nippon Telegr & Teleph Corp <Ntt> マルチキャリア変調装置
JP2988522B1 (ja) * 1998-09-28 1999-12-13 日本電気株式会社 Ｃｄｍａ送信機
US6721349B1 (en) * 1999-01-28 2004-04-13 Qualcomm Incorporated Method and apparatus for reducing peak-to-average ratio in a CDMA communication system
US6606341B1 (en) * 1999-03-22 2003-08-12 Golden Bridge Technology, Inc. Common packet channel with firm handoff
US6147984A (en) * 1999-04-14 2000-11-14 Motorola, Inc. Method and apparatus for peak limiting in a modulator
US7027464B1 (en) * 1999-07-30 2006-04-11 Matsushita Electric Industrial Co., Ltd. OFDM signal transmission scheme, and OFDM signal transmitter/receiver
JP3727283B2 (ja) * 2001-11-26 2005-12-14 松下電器産業株式会社 無線送信装置、無線受信装置及び無線送信方法
GB2384651B (en) * 2002-01-28 2004-03-24 Toshiba Res Europ Ltd Signal selection systems
US6888393B2 (en) * 2002-09-04 2005-05-03 Hitachi Kokusai Electric, Inc. Amplitude limiting apparatus and multi-carrier signal generating apparatus
DE60232026D1 (de) * 2002-11-07 2009-05-28 Ericsson Telefon Ab L M PAPR-Reduktion
KR100515496B1 (ko) * 2002-12-23 2005-09-20 브이케이 주식회사 다중반송파 코드분할 다중접속에서의 스크램블링 시스템및 방법, 그 프로그램이 저장된 기록매체
JP2004207995A (ja) * 2002-12-25 2004-07-22 Matsushita Electric Ind Co Ltd 通信装置および無線通信システム
US7177297B2 (en) * 2003-05-12 2007-02-13 Qualcomm Incorporated Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
JP2004363721A (ja) * 2003-06-02 2004-12-24 Matsushita Electric Ind Co Ltd 無線通信システム及び無線通信方法
US7242722B2 (en) * 2003-10-17 2007-07-10 Motorola, Inc. Method and apparatus for transmission and reception within an OFDM communication system
JP4619797B2 (ja) * 2005-01-14 2011-01-26 富士通株式会社 無線通信システム及び無線通信装置

Also Published As

Publication number Publication date
EP1681822A3 (de) 2007-10-17
US7782923B2 (en) 2010-08-24
US20060159159A1 (en) 2006-07-20
JP2006197319A (ja) 2006-07-27
EP1681822A2 (de) 2006-07-19
JP4619797B2 (ja) 2011-01-26
EP1681822B1 (de) 2008-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE