CN101247379B - 发送机 - Google Patents

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Publication number
CN101247379B
CN101247379B CN2008100034445A CN200810003444A CN101247379B CN 101247379 B CN101247379 B CN 101247379B CN 2008100034445 A CN2008100034445 A CN 2008100034445A CN 200810003444 A CN200810003444 A CN 200810003444A CN 101247379 B CN101247379 B CN 101247379B
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CN
China
Prior art keywords
signal
carrier
peak
level
peak level
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 - Fee Related
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CN2008100034445A
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English (en)
Chinese (zh)
Other versions
CN101247379A (zh
Inventor
冈田贵史
渡边淳
户馆高广
长谷川典央
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.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
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.)
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Publication date
Application filed by Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Publication of CN101247379A publication Critical patent/CN101247379A/zh
Application granted granted Critical
Publication of CN101247379B publication Critical patent/CN101247379B/zh
Expired - Fee Related legal-status Critical Current
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    • 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
    • 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
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
CN2008100034445A 2007-02-15 2008-01-15 发送机 Expired - Fee Related CN101247379B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007034955 2007-02-15
JP2007034955A JP4927585B2 (ja) 2007-02-15 2007-02-15 送信機
JP2007-034955 2007-02-15

Publications (2)

Publication Number Publication Date
CN101247379A CN101247379A (zh) 2008-08-20
CN101247379B true CN101247379B (zh) 2011-08-24

Family

ID=39707096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100034445A Expired - Fee Related CN101247379B (zh) 2007-02-15 2008-01-15 发送机

Country Status (3)

Country Link
US (1) US7974581B2 (cg-RX-API-DMAC10.html)
JP (1) JP4927585B2 (cg-RX-API-DMAC10.html)
CN (1) CN101247379B (cg-RX-API-DMAC10.html)

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CN101647217B (zh) * 2007-04-13 2013-02-27 富士通株式会社 峰值抑制电路、发送装置以及峰值抑制方法
US8239176B2 (en) * 2008-02-13 2012-08-07 Feng Ma Simulation methods and systems for carriers having multiplications
WO2010061914A1 (ja) * 2008-11-28 2010-06-03 日本電気株式会社 ピーク抑圧装置およびピーク抑圧方法
CN101867541B (zh) * 2009-04-20 2013-02-13 大唐移动通信设备有限公司 一种信号波峰削除的方法及设备
JP5433327B2 (ja) * 2009-07-10 2014-03-05 株式会社日立製作所 ピークファクタ低減装置および基地局
WO2011070460A1 (en) * 2009-12-10 2011-06-16 Nokia Corporation Apparatus and method for cubic metric computation in dual-carrier and multi-carrier wireless communication system
CN102137054B (zh) * 2010-01-22 2016-03-30 爱立信(中国)通信有限公司 用于多载波信号传输的设备、系统和方法
JP5201158B2 (ja) * 2010-02-24 2013-06-05 住友電気工業株式会社 信号処理回路とこの回路を有する通信装置
JP5212402B2 (ja) * 2010-02-24 2013-06-19 住友電気工業株式会社 ピーク電力抑制回路とこの回路を有する通信装置
CN101815348B (zh) * 2010-04-20 2013-01-02 广州市广晟微电子有限公司 一种数字信号功率计算装置及方法
US8411771B2 (en) * 2010-05-19 2013-04-02 Qualcomm Incorporated Predictive clipping in multi-carrier wireless communication systems
US8576942B2 (en) * 2011-09-07 2013-11-05 Panasonic Corporation High efficiency transmitter
US8583061B2 (en) * 2011-11-04 2013-11-12 Motorola Solutions, Inc. Peak suppression on multicarrier
JP5923991B2 (ja) * 2012-01-18 2016-05-25 日本電気株式会社 ピークファクタ低減回路及びその制御方法
CN103780531B (zh) * 2012-10-25 2018-01-05 中兴通讯股份有限公司 一种多载波基带消峰装置及方法
WO2014111997A1 (ja) * 2013-01-21 2014-07-24 日本電気株式会社 ピーク抑圧装置及びピーク抑圧方法
US9236899B2 (en) * 2013-06-05 2016-01-12 Telefonaktiebolaget L M Ericsson (Publ) Crest factor reduction of inter-band carrier aggregated signals
WO2016001781A1 (en) * 2014-06-30 2016-01-07 Telefonaktiebolaget L M Ericsson (Publ) Crest factor reduction of carrier aggregated signals
CN104580056A (zh) * 2014-12-15 2015-04-29 联想(北京)有限公司 一种多载波通信系统的载波调整方法及装置
GB201601751D0 (en) 2016-02-01 2016-03-16 Nat Univ Ireland Maynooth Improvements in and relating to power amplifiers
JP6776699B2 (ja) * 2016-07-27 2020-10-28 日本電気株式会社 ピーク抑圧回路及びピーク抑圧方法
CN110417702B (zh) * 2019-07-23 2021-06-15 三维通信股份有限公司 滤波器系数生成方法、系统和降低信号峰均比的系统
JP2021164000A (ja) * 2020-03-30 2021-10-11 古河電気工業株式会社 送信システムおよびピーク抑圧方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164799A (ja) * 2000-11-24 2002-06-07 Matsushita Electric Ind Co Ltd 送信電力制御方法及びその装置並びに通信装置
JP2004104162A (ja) * 2002-09-04 2004-04-02 Hitachi Kokusai Electric Inc 振幅制限装置
JP2004128923A (ja) * 2002-10-03 2004-04-22 Mitsubishi Electric Corp ピーク抑圧装置および送信装置
JP2004166245A (ja) * 2002-10-23 2004-06-10 Hitachi Kokusai Electric Inc 送信機

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JP3235766B2 (ja) * 1995-06-12 2001-12-04 株式会社エヌ・ティ・ティ・ドコモ マルチキャリアピーク電力抑圧送信装置
JP3235769B2 (ja) * 1995-09-21 2001-12-04 株式会社エヌ・ティ・ティ・ドコモ 包絡線平滑化伝送装置及び受信装置
US5675287A (en) * 1996-02-12 1997-10-07 Motorola, Inc. Digital DC correction circuit for a linear transmitter
JP3462388B2 (ja) * 1998-04-28 2003-11-05 松下電器産業株式会社 無線通信装置
JP2000224133A (ja) * 1999-01-28 2000-08-11 Matsushita Electric Ind Co Ltd 周波数分割多重信号送受信装置と送受信方法
JP2002305489A (ja) * 2001-04-05 2002-10-18 Fujitsu Ltd 符号多重信号送信装置
JP3927521B2 (ja) * 2003-06-27 2007-06-13 株式会社日立国際電気 送信機
JP4287225B2 (ja) * 2003-09-18 2009-07-01 株式会社日立国際電気 送信機
US6931343B2 (en) * 2003-09-19 2005-08-16 Globespanvirata, Incorporated On-signal quadrature modulator calibration
JP2005269550A (ja) * 2004-03-22 2005-09-29 Matsushita Electric Ind Co Ltd ピーク電力抑圧装置およびピーク電力抑圧方法
JP2006115096A (ja) * 2004-10-13 2006-04-27 Matsushita Electric Ind Co Ltd マルチキャリア通信装置およびピーク電力抑圧方法
JP4558741B2 (ja) * 2004-11-01 2010-10-06 株式会社日立国際電気 送信機
US8107900B2 (en) * 2005-10-06 2012-01-31 Panasonic Corporation Multi-carrier transmission device
US7796687B1 (en) * 2006-11-24 2010-09-14 Kiomars Anvari Enhanced reconditioning equalizer filter chain for multi-carrier signals with different technologies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164799A (ja) * 2000-11-24 2002-06-07 Matsushita Electric Ind Co Ltd 送信電力制御方法及びその装置並びに通信装置
JP2004104162A (ja) * 2002-09-04 2004-04-02 Hitachi Kokusai Electric Inc 振幅制限装置
JP2004128923A (ja) * 2002-10-03 2004-04-22 Mitsubishi Electric Corp ピーク抑圧装置および送信装置
JP2004166245A (ja) * 2002-10-23 2004-06-10 Hitachi Kokusai Electric Inc 送信機

Also Published As

Publication number Publication date
CN101247379A (zh) 2008-08-20
JP4927585B2 (ja) 2012-05-09
JP2008199490A (ja) 2008-08-28
US7974581B2 (en) 2011-07-05
US20080200126A1 (en) 2008-08-21

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