ATE466413T1 - Verfahren und vorrichtung mit basisbandtransformation zur verbesserung von senderleistung - Google Patents

Verfahren und vorrichtung mit basisbandtransformation zur verbesserung von senderleistung

Info

Publication number
ATE466413T1
ATE466413T1 AT03745074T AT03745074T ATE466413T1 AT E466413 T1 ATE466413 T1 AT E466413T1 AT 03745074 T AT03745074 T AT 03745074T AT 03745074 T AT03745074 T AT 03745074T AT E466413 T1 ATE466413 T1 AT E466413T1
Authority
AT
Austria
Prior art keywords
signals
output
base band
coupled
modified
Prior art date
Application number
AT03745074T
Other languages
English (en)
Inventor
Danny Pinckley
Sean Mcbeath
Original Assignee
Motorola 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.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE466413T1 publication Critical patent/ATE466413T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3294—Acting on the real and imaginary components of the input signal
    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
AT03745074T 2002-03-19 2003-02-07 Verfahren und vorrichtung mit basisbandtransformation zur verbesserung von senderleistung ATE466413T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/101,903 US6983026B2 (en) 2002-03-19 2002-03-19 Method and apparatus using base band transformation to improve transmitter performance
PCT/US2003/003876 WO2003081792A1 (en) 2002-03-19 2003-02-07 Method and apparatus using base band transformation to improve transmitter performance

Publications (1)

Publication Number Publication Date
ATE466413T1 true ATE466413T1 (de) 2010-05-15

Family

ID=28040094

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03745074T ATE466413T1 (de) 2002-03-19 2003-02-07 Verfahren und vorrichtung mit basisbandtransformation zur verbesserung von senderleistung

Country Status (9)

Country Link
US (1) US6983026B2 (de)
EP (1) EP1486005B1 (de)
JP (1) JP4261367B2 (de)
KR (1) KR100958046B1 (de)
CN (1) CN100373782C (de)
AT (1) ATE466413T1 (de)
AU (1) AU2003216211A1 (de)
DE (1) DE60332332D1 (de)
WO (1) WO2003081792A1 (de)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6983026B2 (en) 2002-03-19 2006-01-03 Motorola, Inc. Method and apparatus using base band transformation to improve transmitter performance
US8472897B1 (en) 2006-12-22 2013-06-25 Dali Systems Co. Ltd. Power amplifier predistortion methods and apparatus
US6985704B2 (en) 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion for wireless communication
US8064850B2 (en) * 2002-05-01 2011-11-22 Dali Systems Co., Ltd. High efficiency linearization power amplifier for wireless communication
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
JP3913139B2 (ja) * 2002-08-19 2007-05-09 沖電気工業株式会社 Ｃｄｍａ送信装置、ｃｄｍａ多重送信装置、ｃｄｍａ受信装置及びｃｄｍａ通信システム
JP4063612B2 (ja) * 2002-08-26 2008-03-19 株式会社エヌ・ティ・ティ・ドコモ 送信機
US7248656B2 (en) * 2002-12-02 2007-07-24 Nortel Networks Limited Digital convertible radio SNR optimization
US20040219889A1 (en) * 2003-04-29 2004-11-04 Walter Honcharenko Phase-combined transmitter module and modular transmitter system
US20050111576A1 (en) * 2003-11-24 2005-05-26 Kiomars Anvari Peak-to-average reduction technique for multi-carrier power amplifiers
US20050118966A1 (en) * 2003-12-01 2005-06-02 Kiomars Anvari Simple Crest Factor reduction technique for multi-carrier signals
US7738573B2 (en) * 2004-10-07 2010-06-15 Microelectronics Technology Inc. System and method for crest factor reduction
WO2006051507A1 (en) * 2004-11-12 2006-05-18 Koninklijke Philips Electronics N.V. Radio communication system, receiver and transmitter
EP1659703A1 (de) * 2004-11-17 2006-05-24 Alcatel Verfahren und Vorrichtung zur Verringerung des Verhältnisses von Spitzen- zu Durchschnittsleistung in Mobiltelephonen
US20060105723A1 (en) * 2004-11-17 2006-05-18 Kiomars Anvari Simple crest factor reduction technique for non-constant envelope signals
US7668266B2 (en) * 2005-03-18 2010-02-23 Georgia Tech Research Corporation Crest factor reduction in OFDM using blind selected pilot tone modulation
US7586995B1 (en) * 2005-04-18 2009-09-08 Altera Corporation Peak windowing for crest factor reduction
US8145251B2 (en) * 2006-01-23 2012-03-27 Motorola Mobility, Inc. Power control in schedulable wireless communication terminal
US20070173260A1 (en) * 2006-01-23 2007-07-26 Love Robert T Wireless communication network scheduling
JP4680077B2 (ja) * 2006-02-02 2011-05-11 三菱電機株式会社 Ｏｆｄｍ通信器
JP4750592B2 (ja) * 2006-03-17 2011-08-17 富士通株式会社 ピーク抑圧方法、ピーク抑圧装置、無線送信装置
US7738594B2 (en) * 2006-06-30 2010-06-15 Intel Corporation Method to maintain RF power amplifier linearity in varying load VSWR conditions without isolator
US9622190B2 (en) 2006-07-25 2017-04-11 Google Technology Holdings LLC Spectrum emission level variation in schedulable wireless communication terminal
US20080025254A1 (en) * 2006-07-25 2008-01-31 Motorola Inc Spectrum emission level variation in schedulable wireless communication terminal
US7480346B2 (en) * 2006-09-13 2009-01-20 Motorola, Inc. Method and apparatus for improving sector to sector isolation in a Fourier transform matrix system
US8411709B1 (en) 2006-11-27 2013-04-02 Marvell International Ltd. Use of previously buffered state information to decode in an hybrid automatic repeat request (H-ARQ) transmission mode
US9026067B2 (en) 2007-04-23 2015-05-05 Dali Systems Co. Ltd. Remotely reconfigurable power amplifier system and method
KR20100014339A (ko) * 2006-12-26 2010-02-10 달리 시스템즈 씨오. 엘티디. 다중 채널 광대역 통신 시스템에서의 기저 대역 전치 왜곡 선형화를 위한 방법 및 시스템
US8274332B2 (en) 2007-04-23 2012-09-25 Dali Systems Co. Ltd. N-way Doherty distributed power amplifier with power tracking
US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
US8897393B1 (en) 2007-10-16 2014-11-25 Marvell International Ltd. Protected codebook selection at receiver for transmit beamforming
US8542725B1 (en) 2007-11-14 2013-09-24 Marvell International Ltd. Decision feedback equalization for signals having unequally distributed patterns
KR101669173B1 (ko) 2007-12-07 2016-10-25 달리 시스템즈 씨오. 엘티디. 베이스밴드-도출형 광대역 ｒｆ 디지털 전치 왜곡 시스템
US8140606B2 (en) * 2007-12-17 2012-03-20 Motorola Mobility, Inc. Method and apparatus for a fail safe fourier transform matrix
US8565325B1 (en) 2008-03-18 2013-10-22 Marvell International Ltd. Wireless device communication in the 60GHz band
US8498342B1 (en) 2008-07-29 2013-07-30 Marvell International Ltd. Deblocking filtering
US8761261B1 (en) 2008-07-29 2014-06-24 Marvell International Ltd. Encoding using motion vectors
US8345533B1 (en) 2008-08-18 2013-01-01 Marvell International Ltd. Frame synchronization techniques
US8681893B1 (en) 2008-10-08 2014-03-25 Marvell International Ltd. Generating pulses using a look-up table
US8761834B2 (en) * 2008-12-31 2014-06-24 Motorola Mobility Llc Method and apparatus for antenna selection and power control in a multiple input multiple output wireless communication system
US8520771B1 (en) * 2009-04-29 2013-08-27 Marvell International Ltd. WCDMA modulation
US8532215B2 (en) * 2009-09-14 2013-09-10 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Multi-carrier amplifier linearization system and method
US8351877B2 (en) 2010-12-21 2013-01-08 Dali Systems Co. Ltfd. Multi-band wideband power amplifier digital predistorition system and method
JP5744910B2 (ja) * 2009-12-21 2015-07-08 ダリ システムズ カンパニー リミテッド 無線通信のための高効率、リモートで再構成可能なリモート無線ヘッドユニットのシステム及び方法
EP3110231B1 (de) 2009-12-21 2018-05-02 Dali Systems Co. Ltd. Effizientes fernkonfigurierbares fernfunkkopfsystem und verfahren für die drahtlose kommunikation
CN106160674A (zh) 2009-12-21 2016-11-23 大力系统有限公司 用于改善发射机与接收机之间的隔离的系统
US8542768B2 (en) 2009-12-21 2013-09-24 Dali Systems Co. Ltd. High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
US8351543B2 (en) * 2009-12-21 2013-01-08 Ubidyne, Inc. Active antenna array with modulator-based pre-distortion
US8817771B1 (en) 2010-07-16 2014-08-26 Marvell International Ltd. Method and apparatus for detecting a boundary of a data frame in a communication network
KR102136940B1 (ko) 2010-09-14 2020-07-23 달리 시스템즈 씨오. 엘티디. 원격으로 재구성가능한 분산 안테나 시스템 및 방법
US8750410B2 (en) * 2010-09-22 2014-06-10 Texas Instruments Incorporated Multi-band power amplifier digital predistortion system and method
US9565655B2 (en) 2011-04-13 2017-02-07 Google Technology Holdings LLC Method and apparatus to detect the transmission bandwidth configuration of a channel in connection with reducing interference between channels in wireless communication systems
US8934500B2 (en) 2011-04-13 2015-01-13 Motorola Mobility Llc Method and apparatus using two radio access technologies for scheduling resources in wireless communication systems
US9077571B2 (en) * 2011-09-09 2015-07-07 Nxp B.V. Adaptive equalizer and/or antenna tuning
US8576943B2 (en) * 2011-09-09 2013-11-05 Telefonaktiebolaget L M Ericsson (Publ) Linearization for a single power amplifier in a multi-band transmitter
JP5794163B2 (ja) * 2012-02-03 2015-10-14 アイコム株式会社 通信機および通信方法
CN102594749A (zh) * 2012-02-28 2012-07-18 中兴通讯股份有限公司 一种数字预失真处理方法及装置
US9191041B2 (en) * 2013-06-05 2015-11-17 Telefonaktiebolaget L M Ericsson (Publ) Digital predistortion of wideband power amplifiers with reduced observation bandwidth
KR102140299B1 (ko) * 2014-01-27 2020-07-31 한국전자통신연구원 논리 레벨에 대응하는 전기 특성 값을 조절하는 송신 장치 및 그것의 신호 전송 방법
WO2018224161A1 (en) * 2017-06-09 2018-12-13 Nokia Technologies Oy Reducing distortions in amplified signals to be radiated by an antenna
US10594530B2 (en) * 2018-05-29 2020-03-17 Qualcomm Incorporated Techniques for successive peak reduction crest factor reduction

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287387A (en) 1992-03-06 1994-02-15 Motorola, Inc. Low splatter peak-to-average signal reduction
US5574967A (en) 1994-01-11 1996-11-12 Ericsson Ge Mobile Communications, Inc. Waste energy control and management in power amplifiers
US5638403A (en) 1995-04-28 1997-06-10 Motorola, Inc. Low-splatter peak-to-average signal reduction with interpolation
US5862457A (en) 1995-12-21 1999-01-19 Lucent Technologies, Inc. Multichannel predistortion linearizer
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
GB2313525B (en) * 1996-05-24 2000-06-07 Motorola Ltd Filter for multicarrier communication system and method for peak power control therein
US5920808A (en) * 1996-12-12 1999-07-06 Glenayre Electronics, Inc. Method and apparatus for reducing key-up distortion by pre-heating transistors
US5886573A (en) 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
US6381212B1 (en) * 1998-06-17 2002-04-30 Radio Frequency Systems, Inc. Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers
US6236837B1 (en) 1998-07-30 2001-05-22 Motorola, Inc. Polynomial Predistortion linearizing device, method, phone and base station
US6304140B1 (en) 2000-06-12 2001-10-16 Motorola, Inc. Digital predistortion for amplifiers
US7065154B2 (en) * 2000-12-29 2006-06-20 Nokia Corporation Baseband predistortion method for multicarrier transmitters
US6983026B2 (en) 2002-03-19 2006-01-03 Motorola, Inc. Method and apparatus using base band transformation to improve transmitter performance

Also Published As

Publication number Publication date
US20030179829A1 (en) 2003-09-25
CN100373782C (zh) 2008-03-05
WO2003081792A1 (en) 2003-10-02
EP1486005A1 (de) 2004-12-15
AU2003216211A1 (en) 2003-10-08
DE60332332D1 (de) 2010-06-10
US6983026B2 (en) 2006-01-03
EP1486005B1 (de) 2010-04-28
KR100958046B1 (ko) 2010-05-17
JP2006509378A (ja) 2006-03-16
CN1647395A (zh) 2005-07-27
KR20040091764A (ko) 2004-10-28
JP4261367B2 (ja) 2009-04-30

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