WO2006052377A3 - System and method for forward path gain control in a digital predistortion linearized transmitter - Google Patents

System and method for forward path gain control in a digital predistortion linearized transmitter Download PDF

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Publication number
WO2006052377A3
WO2006052377A3 PCT/US2005/036735 US2005036735W WO2006052377A3 WO 2006052377 A3 WO2006052377 A3 WO 2006052377A3 US 2005036735 W US2005036735 W US 2005036735W WO 2006052377 A3 WO2006052377 A3 WO 2006052377A3
Authority
WO
WIPO (PCT)
Prior art keywords
gain
gain control
forward path
digital predistortion
path gain
Prior art date
Application number
PCT/US2005/036735
Other languages
French (fr)
Other versions
WO2006052377A2 (en
Inventor
Christian G Luke
Ian Johnson
Mark Cope
Adrian Mansell
Steven A Wood
Original Assignee
Powerwave Technologies Inc
Christian G Luke
Ian Johnson
Mark Cope
Adrian Mansell
Steven A Wood
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 Powerwave Technologies Inc, Christian G Luke, Ian Johnson, Mark Cope, Adrian Mansell, Steven A Wood filed Critical Powerwave Technologies Inc
Priority to EP05812850A priority Critical patent/EP1810433B1/en
Priority to CN2005800384439A priority patent/CN101057437B/en
Publication of WO2006052377A2 publication Critical patent/WO2006052377A2/en
Publication of WO2006052377A3 publication Critical patent/WO2006052377A3/en

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Classifications

    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

A system and method for controlling the gain in the forward signal path (102) of a digital predistortion linearizer is disclosed. The loop gain of the predistortion system is driven to unity, wherein a separately controlling constant-gain observation path (104) allows accurate gain control of the forward path (102). This is divided into digital gain from the predistortion function and analog gain from a Voltage Variable Attenuator (WA) (130) in the transmitter.
PCT/US2005/036735 2004-11-10 2005-10-12 System and method for forward path gain control in a digital predistortion linearized transmitter WO2006052377A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05812850A EP1810433B1 (en) 2004-11-10 2005-10-12 System and method for forward path gain control in a digital predistortion linearized transmitter
CN2005800384439A CN101057437B (en) 2004-11-10 2005-10-12 System and method for forward path gain control in a digital predistortion linearized transmitter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US62675504P 2004-11-10 2004-11-10
US60/626,755 2004-11-10
US11/214,191 US7590190B2 (en) 2004-11-10 2005-08-29 System and method for forward path gain control in a digital predistortion linearized transmitter
US11/214,191 2005-08-29

Publications (2)

Publication Number Publication Date
WO2006052377A2 WO2006052377A2 (en) 2006-05-18
WO2006052377A3 true WO2006052377A3 (en) 2006-11-30

Family

ID=36316324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/036735 WO2006052377A2 (en) 2004-11-10 2005-10-12 System and method for forward path gain control in a digital predistortion linearized transmitter

Country Status (4)

Country Link
US (1) US7590190B2 (en)
EP (1) EP1810433B1 (en)
CN (1) CN101057437B (en)
WO (1) WO2006052377A2 (en)

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* Cited by examiner, † Cited by third party
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US8498590B1 (en) * 2006-04-04 2013-07-30 Apple Inc. Signal transmitter linearization
JP4425262B2 (en) * 2006-12-07 2010-03-03 株式会社日立国際電気 Feed forward amplifier
EP1968201A1 (en) * 2007-03-09 2008-09-10 Alcatel Lucent Predistortion with asymmetric usage of available bandwidth
JP4935906B2 (en) * 2007-07-31 2012-05-23 富士通株式会社 Distortion compensation apparatus and method
CN101874355A (en) * 2007-11-27 2010-10-27 Nxp股份有限公司 Device for receiving a RF signal with loop-through output and method for looping a RF input signal through a device for receiving RF signals
US8384476B2 (en) * 2008-08-11 2013-02-26 Qualcomm, Incorporated Adaptive digital predistortion of complex modulated waveform using peak and RMS voltage feedback from the output of a power amplifier
WO2010102441A1 (en) * 2009-03-09 2010-09-16 Zte Wistron Telecom Ab Method and apparatus for linearizing a non-linear power amplifier
US8615054B2 (en) * 2010-09-24 2013-12-24 Intel Corporation Close-loop power amplifier pre-distortion correction
CN102014473B (en) * 2010-12-09 2014-07-02 中兴通讯股份有限公司 Power calibration control method and device
EP2475206A1 (en) * 2011-01-07 2012-07-11 Mitsubishi Electric R&D Centre Europe B.V. Method and a device for adjusting the transmission power of signals transferred by plural mobile terminals
US8824980B2 (en) * 2012-09-05 2014-09-02 Analog Devices, Inc. System and method to implement a radio transmitter with digital predistortion having reduced noise
US9413319B2 (en) * 2014-03-24 2016-08-09 Analog Devices, Inc. Gain calibration
US10075310B2 (en) * 2014-08-28 2018-09-11 Lockheed Martin Corporation Adaptive linearizer
CN104601239B (en) * 2015-01-12 2017-05-17 西南交通大学 Optical fiber adaptive nonlinear compensation method based on intensity noise variance and low-pass filter
US11063620B2 (en) * 2016-05-31 2021-07-13 Apple Inc. Digital pre-emphasis quadrature imbalance compensating filter
WO2019034019A1 (en) 2017-08-15 2019-02-21 Telefonaktiebolaget Lm Ericsson (Publ) Device and method for downlink gain compensation as well as radio unit comprising the device

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Publication number Priority date Publication date Assignee Title
US6194964B1 (en) * 1998-07-07 2001-02-27 Samsung Electronics Co., Ltd. Predistorter having an automatic gain control circuit and method therefor
US20040219944A1 (en) * 2000-10-23 2004-11-04 Ilan Barak Automatic level control
US20050180527A1 (en) * 2004-01-29 2005-08-18 Ntt Docomo, Inc. Digital predistorter using power series model

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Publication number Priority date Publication date Assignee Title
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
US6112062A (en) * 1997-09-26 2000-08-29 The Whitaker Corporation Predistortion for high power amplifiers
KR20010064900A (en) 1999-12-20 2001-07-11 서평원 adaptive predistortion linearizer
US7145962B2 (en) 2000-08-04 2006-12-05 Lg-Nortel Co., Ltd. Predistortion digital linearizer and gain controlling method thereof
GB2379109B (en) * 2001-08-21 2005-07-13 Ubinetics Ltd Linearised radio transmitter
US7110469B2 (en) * 2002-03-08 2006-09-19 Broadcom Corporation Self-calibrating direct conversion transmitter
CN100420157C (en) * 2003-02-19 2008-09-17 联发科技股份有限公司 Method for eliminating mirror image interference in low-intermediate frequency receiver and relevant apparatus
JP4394409B2 (en) * 2003-09-25 2010-01-06 株式会社日立国際電気 Predistortion type amplifier with distortion compensation function

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6194964B1 (en) * 1998-07-07 2001-02-27 Samsung Electronics Co., Ltd. Predistorter having an automatic gain control circuit and method therefor
US20040219944A1 (en) * 2000-10-23 2004-11-04 Ilan Barak Automatic level control
US20050180527A1 (en) * 2004-01-29 2005-08-18 Ntt Docomo, Inc. Digital predistorter using power series model

Also Published As

Publication number Publication date
WO2006052377A2 (en) 2006-05-18
EP1810433A4 (en) 2010-10-27
CN101057437A (en) 2007-10-17
EP1810433A2 (en) 2007-07-25
CN101057437B (en) 2012-10-10
EP1810433B1 (en) 2012-11-28
US20060098758A1 (en) 2006-05-11
US7590190B2 (en) 2009-09-15

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