CA2126987A1 - Power amplifier linearization in a tdma mobile radio system - Google Patents

Power amplifier linearization in a tdma mobile radio system

Info

Publication number
CA2126987A1
CA2126987A1 CA002126987A CA2126987A CA2126987A1 CA 2126987 A1 CA2126987 A1 CA 2126987A1 CA 002126987 A CA002126987 A CA 002126987A CA 2126987 A CA2126987 A CA 2126987A CA 2126987 A1 CA2126987 A1 CA 2126987A1
Authority
CA
Canada
Prior art keywords
time slots
power amplifier
linearization
time
radio system
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
CA002126987A
Other languages
French (fr)
Other versions
CA2126987C (en
Inventor
Anthony Patrick Van Den Heuvel
Stephen Thomas Valentine
Dragan Boscovic
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.)
Motorola Solutions Inc
Original Assignee
Anthony Patrick Van Den Heuvel
Stephen Thomas Valentine
Dragan Boscovic
Motorola, Inc.
Motorola Solutions, 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10724392&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2126987(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Anthony Patrick Van Den Heuvel, Stephen Thomas Valentine, Dragan Boscovic, Motorola, Inc., Motorola Solutions, Inc. filed Critical Anthony Patrick Van Den Heuvel
Publication of CA2126987A1 publication Critical patent/CA2126987A1/en
Application granted granted Critical
Publication of CA2126987C publication Critical patent/CA2126987C/en
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
    • H04L27/32—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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • 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
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/3282—Acting on the phase and the amplitude of the input signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/438—Separate feedback of amplitude and phase signals being present

Abstract

This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system.
The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
CA002126987A 1992-11-02 1993-10-07 Power amplifier linearization in a tdma mobile radio system Expired - Lifetime CA2126987C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9222922.8 1992-11-02
GB9222922A GB2272133B (en) 1992-11-02 1992-11-02 Radio system
PCT/EP1993/002743 WO1994010765A1 (en) 1992-11-02 1993-10-07 Power amplifier linearization in a tdma mobile radio system

Publications (2)

Publication Number Publication Date
CA2126987A1 true CA2126987A1 (en) 1994-05-11
CA2126987C CA2126987C (en) 2004-06-22

Family

ID=10724392

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002126987A Expired - Lifetime CA2126987C (en) 1992-11-02 1993-10-07 Power amplifier linearization in a tdma mobile radio system

Country Status (26)

Country Link
US (1) US5559807A (en)
EP (1) EP0619927B1 (en)
CN (1) CN1051417C (en)
AT (1) AT407814B (en)
AU (1) AU664497B2 (en)
BR (1) BR9305710A (en)
CA (1) CA2126987C (en)
DE (2) DE4395427C2 (en)
DK (1) DK173776B1 (en)
ES (1) ES2098185B1 (en)
FI (1) FI107095B (en)
GB (1) GB2272133B (en)
GR (1) GR3032966T3 (en)
HK (1) HK1000750A1 (en)
HU (1) HU218633B (en)
IL (1) IL107253A (en)
IN (1) IN187365B (en)
MY (1) MY110064A (en)
NL (1) NL194188C (en)
PL (1) PL173528B1 (en)
PT (1) PT619927E (en)
RO (2) RO119671B1 (en)
RU (1) RU2109403C1 (en)
SE (1) SE516994C2 (en)
TR (1) TR28221A (en)
WO (1) WO1994010765A1 (en)

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GB2301247A (en) * 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
US5748678A (en) * 1995-07-13 1998-05-05 Motorola, Inc. Radio communications apparatus
US5675286A (en) * 1996-02-12 1997-10-07 Motorola, Inc. Method and apparatus for an improved linear transmitter
GB2321574B (en) * 1997-01-24 2000-07-12 Motorola Ltd Communication system,transmitter circuit and method of operation therefor
US6829226B1 (en) * 1997-04-04 2004-12-07 Ericsson Inc. Power control for a mobile terminal in a satellite communication system
FR2766638B1 (en) * 1997-07-24 1999-09-24 Alsthom Cge Alcatel LINEARIZATION DEVICE FOR TRANSMISSION AMPLIFIERS
EP0902555A1 (en) 1997-09-13 1999-03-17 Deutsche Thomson-Brandt Gmbh Indoor communication system and synchronisation for a receiver
SE511323C2 (en) * 1997-12-23 1999-09-13 Ericsson Telefon Ab L M Method and apparatus for phase control
FR2781323B1 (en) * 1998-07-16 2000-08-18 Alsthom Cge Alcatel TRANSMISSION PROCESS IN SUCCESSIVE WINDOWS
US6043712A (en) * 1998-07-17 2000-03-28 Motorola, Inc. Linear power amplifier
GB9906417D0 (en) * 1999-03-19 1999-05-12 Simoco Int Ltd Radio transmitters
US6539010B1 (en) * 1999-10-28 2003-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Downlink power control and adaptive beamforming for half-rate radiocommunication systems
US6477368B1 (en) * 2000-04-28 2002-11-05 Motorola, Inc. Method for dynamic transmitter training for a shared communication system utilizing dynamic channel allocation
US7088958B2 (en) * 2001-06-19 2006-08-08 Intersil Americas Inc. Remote power amplifier linearization
US6731694B2 (en) 2001-08-07 2004-05-04 Motorola, Inc. Isolator eliminator for a linear transmitter
US10420097B2 (en) 2002-01-22 2019-09-17 Ipr Licensing, Inc. Techniques for setting up traffic channels in a communications system
KR101176748B1 (en) 2002-01-22 2012-08-23 아이피알 라이센싱, 인코포레이티드 Allocating traffic channels in a communications system
US7113551B2 (en) * 2002-07-25 2006-09-26 Intersil Corporation Transmitter with limited spectral regrowth and method therefor
FR2846812B1 (en) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk IMPROVING THE METHODS AND DEVICES FOR LEARNING A DEVICE FOR LINEARIZING AN RF AMPLIFIER
FR2846813B1 (en) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk METHOD AND DEVICE FOR LEARNING A DEVICE FOR LINEARIZATION OF AN RF AMPLIFIER, AND MOBILE TERMINAL INCORPORATING SUCH A DEVICE
EP1480402B1 (en) * 2003-05-23 2006-11-29 Sony Ericsson Mobile Communications AB Automatic power control circuitry for a QAM transmitter unit of a wireless communication device
US7720171B2 (en) * 2003-06-13 2010-05-18 Alcatel-Lucent Usa Inc. Coefficient estimation method and apparatus
US7469491B2 (en) 2004-01-27 2008-12-30 Crestcom, Inc. Transmitter predistortion circuit and method therefor
US7099399B2 (en) * 2004-01-27 2006-08-29 Crestcom, Inc. Distortion-managed digital RF communications transmitter and method therefor
US20070082617A1 (en) * 2005-10-11 2007-04-12 Crestcom, Inc. Transceiver with isolation-filter compensation and method therefor
US7542519B2 (en) * 2005-12-29 2009-06-02 Crestcom, Inc. Radio frequency transmitter and method therefor
US7724840B2 (en) * 2006-12-19 2010-05-25 Crestcom, Inc. RF transmitter with predistortion and method therefor
GB2445776B (en) 2007-01-17 2009-08-19 Motorola Inc Wireless communication unit, linearised transmitter circuit and method of linearising therein
US8175553B2 (en) 2007-01-17 2012-05-08 Motorola Solutions, Inc. Wireless communication unit, linearised transmitter circuit and method of linearising therein
US20080285640A1 (en) * 2007-05-15 2008-11-20 Crestcom, Inc. RF Transmitter With Nonlinear Predistortion and Method Therefor
US20090033418A1 (en) * 2007-08-03 2009-02-05 M/A-Com, Inc. Training sequence and digital linearization process for power amplifier
CN102044736B (en) * 2009-10-14 2015-05-20 中兴通讯股份有限公司 Radio remote unit
US8331484B2 (en) * 2010-01-13 2012-12-11 Cisco Technology, Inc. Digital Predistortion training system
US8792581B2 (en) * 2010-02-18 2014-07-29 Telefonaktiebolaget Lm Ericsson (Publ) RF clock generator with spurious tone cancellation
US8626090B2 (en) * 2010-03-23 2014-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Circuit and method for interference reduction
RU2516868C1 (en) * 2012-12-25 2014-05-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" System for radio communication with mobile objects
RU2535923C1 (en) * 2013-10-15 2014-12-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" System for radio communication with mobile objects
RU2535922C1 (en) * 2013-10-15 2014-12-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" System for radio communication with mobile objects
NZ778597A (en) 2015-08-14 2023-05-26 Viasat Inc Digital dynmic bias circuit
DE102019134540B4 (en) * 2019-12-16 2021-08-05 Hytera Mobilfunk Gmbh Method for fault monitoring of an antenna system of a base station, monitoring system, test device, base station and computer program for this
RU2746148C1 (en) * 2020-07-17 2021-04-07 Акционерное общество "Научно-производственное предприятие "Полет" Mobile radio communication system

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US4852090A (en) * 1987-02-02 1989-07-25 Motorola, Inc. TDMA communications system with adaptive equalization
US4873683A (en) * 1987-12-04 1989-10-10 Motorola, Inc. TDMA radio system employing BPSK synchronization for QPSK signals subject to random phase variation and multipath fading
US4998290A (en) * 1988-05-09 1991-03-05 Canadian Marconi Corporation Frequency-hopping radio communication network
DE3833940A1 (en) * 1988-09-22 1990-04-05 Siemens Ag METHOD FOR RE-SYNCHRONIZING A SWITCH CENTER IN A TELECOMMUNICATION NETWORK
IT1239472B (en) * 1990-04-09 1993-11-02 Sits Soc It Telecom Siemens LINEARIZER OF THE PRE-DISTORTION TYPE FOR MICROWAVE POWER AMPLIFIERS
CA2069476C (en) * 1990-10-24 1996-12-17 Stephen Vincent Cahill An apparatus and method for varying a signal in a transmitter of a transceiver
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GB2265270B (en) * 1992-03-02 1996-06-12 Motorola Ltd Rf power amplifier with linearization
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US5440544A (en) * 1993-12-27 1995-08-08 General Electric Company Integrated data link concept for air traffic control applications

Also Published As

Publication number Publication date
GR3032966T3 (en) 2000-07-31
FI943189A (en) 1994-07-01
TR28221A (en) 1996-03-21
WO1994010765A1 (en) 1994-05-11
DK173776B1 (en) 2001-10-08
NL194188B (en) 2001-04-02
ATA901693A (en) 2000-10-15
EP0619927B1 (en) 2000-01-12
PL173528B1 (en) 1998-03-31
HU9401972D0 (en) 1994-09-28
SE516994C2 (en) 2002-04-02
HK1000750A1 (en) 1998-04-24
NL9320020A (en) 1994-11-01
FI943189A0 (en) 1994-07-01
CA2126987C (en) 2004-06-22
DE4395427C2 (en) 2000-07-27
HUT68149A (en) 1995-05-29
EP0619927A1 (en) 1994-10-19
US5559807A (en) 1996-09-24
HU218633B (en) 2000-10-28
AU664497B2 (en) 1995-11-16
ES2098185B1 (en) 1997-12-16
AU5149493A (en) 1994-05-24
SE9402325L (en) 1994-08-29
RO119672B1 (en) 2005-01-28
IL107253A0 (en) 1994-01-25
AT407814B (en) 2001-06-25
IN187365B (en) 2002-04-06
GB2272133B (en) 1996-06-12
NL194188C (en) 2001-08-03
PL304341A1 (en) 1995-01-09
MY110064A (en) 1997-12-31
CN1051417C (en) 2000-04-12
RU2109403C1 (en) 1998-04-20
RO119671B1 (en) 2005-01-28
CN1089415A (en) 1994-07-13
GB2272133A (en) 1994-05-04
GB9222922D0 (en) 1992-12-16
SE9402325D0 (en) 1994-07-01
FI107095B (en) 2001-05-31
DE4395427T1 (en) 1994-12-01
ES2098185A1 (en) 1997-04-16
PT619927E (en) 2000-04-28
IL107253A (en) 1996-09-12
DK79394A (en) 1994-07-01
BR9305710A (en) 1996-12-31

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20131007