JP2008199490A5 - - Google Patents

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Publication number
JP2008199490A5
JP2008199490A5 JP2007034955A JP2007034955A JP2008199490A5 JP 2008199490 A5 JP2008199490 A5 JP 2008199490A5 JP 2007034955 A JP2007034955 A JP 2007034955A JP 2007034955 A JP2007034955 A JP 2007034955A JP 2008199490 A5 JP2008199490 A5 JP 2008199490A5
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JP
Japan
Prior art keywords
peak level
signal
filter coefficient
suppression
multiplying
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.)
Granted
Application number
JP2007034955A
Other languages
English (en)
Japanese (ja)
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JP2008199490A (ja
JP4927585B2 (ja
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Publication date
Application filed filed Critical
Priority to JP2007034955A priority Critical patent/JP4927585B2/ja
Priority claimed from JP2007034955A external-priority patent/JP4927585B2/ja
Priority to CN2008100034445A priority patent/CN101247379B/zh
Priority to US12/068,926 priority patent/US7974581B2/en
Publication of JP2008199490A publication Critical patent/JP2008199490A/ja
Publication of JP2008199490A5 publication Critical patent/JP2008199490A5/ja
Application granted granted Critical
Publication of JP4927585B2 publication Critical patent/JP4927585B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2007034955A 2007-02-15 2007-02-15 送信機 Expired - Fee Related JP4927585B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007034955A JP4927585B2 (ja) 2007-02-15 2007-02-15 送信機
CN2008100034445A CN101247379B (zh) 2007-02-15 2008-01-15 发送机
US12/068,926 US7974581B2 (en) 2007-02-15 2008-02-13 Transmitter

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
JP2008199490A JP2008199490A (ja) 2008-08-28
JP2008199490A5 true JP2008199490A5 (enExample) 2010-03-18
JP4927585B2 JP4927585B2 (ja) 2012-05-09

Family

ID=39707096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007034955A Expired - Fee Related JP4927585B2 (ja) 2007-02-15 2007-02-15 送信機

Country Status (3)

Country Link
US (1) US7974581B2 (enExample)
JP (1) JP4927585B2 (enExample)
CN (1) CN101247379B (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101120685B1 (ko) * 2007-04-13 2012-03-22 후지쯔 가부시끼가이샤 피크 억압 방법
US8239176B2 (en) * 2008-02-13 2012-08-07 Feng Ma Simulation methods and systems for carriers having multiplications
JPWO2010061914A1 (ja) * 2008-11-28 2012-04-26 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
EP2947780B1 (en) * 2013-01-21 2020-04-15 NEC Corporation Peak suppression apparatus and peak suppression method
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

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3478496B2 (ja) * 2000-11-24 2003-12-15 松下電器産業株式会社 送信電力制御方法及びその装置並びに通信装置
JP2002305489A (ja) * 2001-04-05 2002-10-18 Fujitsu Ltd 符号多重信号送信装置
JP3654526B2 (ja) * 2002-09-04 2005-06-02 株式会社日立国際電気 振幅制限装置
JP4184026B2 (ja) * 2002-10-03 2008-11-19 三菱電機株式会社 ピーク抑圧装置および送信装置
JP4318253B2 (ja) * 2002-10-23 2009-08-19 株式会社日立国際電気 送信機
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
CN101702698B (zh) * 2004-11-01 2013-01-16 株式会社日立国际电气 发送机
JP4837669B2 (ja) * 2005-10-06 2011-12-14 パナソニック株式会社 マルチキャリア送信装置
US7796687B1 (en) * 2006-11-24 2010-09-14 Kiomars Anvari Enhanced reconditioning equalizer filter chain for multi-carrier signals with different technologies

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