NL194188C - Linearisatie van een vermogensversterker in een mobiel TDMA-radiosysteem. Mobiel tijdmultiplex-radiostelsel met linearisatie van de vermogensversterkers behorende tot de zenders van de afstandseenheden behorende tot het stelsel. - Google Patents

Linearisatie van een vermogensversterker in een mobiel TDMA-radiosysteem. Mobiel tijdmultiplex-radiostelsel met linearisatie van de vermogensversterkers behorende tot de zenders van de afstandseenheden behorende tot het stelsel. Download PDF

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Publication number
NL194188C
NL194188C NL9320020A NL9320020A NL194188C NL 194188 C NL194188 C NL 194188C NL 9320020 A NL9320020 A NL 9320020A NL 9320020 A NL9320020 A NL 9320020A NL 194188 C NL194188 C NL 194188C
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NL
Netherlands
Prior art keywords
channel
time
linearization
transmission
time slots
Prior art date
Application number
NL9320020A
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English (en)
Dutch (nl)
Other versions
NL9320020A (nl
NL194188B (nl
Inventor
Anthony Patrick Van Den Heuvel
Dragan Boscovic
Stephen Thomas Valentine
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
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Application filed by Motorola Inc filed Critical Motorola Inc
Publication of NL9320020A publication Critical patent/NL9320020A/nl
Publication of NL194188B publication Critical patent/NL194188B/xx
Application granted granted Critical
Publication of NL194188C publication Critical patent/NL194188C/nl

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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
    • H04L27/36—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Amplifiers (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
NL9320020A 1992-11-02 1993-10-07 Linearisatie van een vermogensversterker in een mobiel TDMA-radiosysteem. Mobiel tijdmultiplex-radiostelsel met linearisatie van de vermogensversterkers behorende tot de zenders van de afstandseenheden behorende tot het stelsel. NL194188C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9222922A GB2272133B (en) 1992-11-02 1992-11-02 Radio system
GB9222922 1992-11-02

Publications (3)

Publication Number Publication Date
NL9320020A NL9320020A (nl) 1994-11-01
NL194188B NL194188B (nl) 2001-04-02
NL194188C true NL194188C (nl) 2001-08-03

Family

ID=10724392

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9320020A NL194188C (nl) 1992-11-02 1993-10-07 Linearisatie van een vermogensversterker in een mobiel TDMA-radiosysteem. Mobiel tijdmultiplex-radiostelsel met linearisatie van de vermogensversterkers behorende tot de zenders van de afstandseenheden behorende tot het stelsel.

Country Status (26)

Country Link
US (1) US5559807A (es)
EP (1) EP0619927B1 (es)
CN (1) CN1051417C (es)
AT (1) AT407814B (es)
AU (1) AU664497B2 (es)
BR (1) BR9305710A (es)
CA (1) CA2126987C (es)
DE (2) DE4395427T1 (es)
DK (1) DK173776B1 (es)
ES (1) ES2098185B1 (es)
FI (1) FI107095B (es)
GB (1) GB2272133B (es)
GR (1) GR3032966T3 (es)
HK (1) HK1000750A1 (es)
HU (1) HU218633B (es)
IL (1) IL107253A (es)
IN (1) IN187365B (es)
MY (1) MY110064A (es)
NL (1) NL194188C (es)
PL (1) PL173528B1 (es)
PT (1) PT619927E (es)
RO (2) RO119671B1 (es)
RU (1) RU2109403C1 (es)
SE (1) SE516994C2 (es)
TR (1) TR28221A (es)
WO (1) WO1994010765A1 (es)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298338B (en) * 1995-02-15 1999-09-29 Motorola Ltd A method for reverse channel sounding in a communications system
FI98675B (fi) † 1995-02-17 1997-04-15 Nokia Telecommunications Oy Aikavälien allokoiminen matkaviestinjärjestelmässä
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 (fr) * 1997-07-24 1999-09-24 Alsthom Cge Alcatel Dispositif de linearisation d'amplificateurs d'emission
EP0902555A1 (en) * 1997-09-13 1999-03-17 Deutsche Thomson-Brandt Gmbh Indoor communication system and synchronisation for a receiver
SE511323C2 (sv) * 1997-12-23 1999-09-13 Ericsson Telefon Ab L M Metod och anordning för fasreglering
FR2781323B1 (fr) * 1998-07-16 2000-08-18 Alsthom Cge Alcatel Procede de transmission dans des fenetres successives
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
CA2480645C (en) 2002-01-22 2016-09-06 Ipr Licensing, Inc. Allocating traffic channels in a communications system
US10420097B2 (en) 2002-01-22 2019-09-17 Ipr Licensing, Inc. Techniques for setting up 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 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Perfectionnement aux procedes et dispositifs d'apprentissage d'un dispositif de linearisation d'un amplificateur rf
FR2846813B1 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Procede et dispositif d'apprentissage d'un dispositif de linearisation d'un amplificateur rf, et terminal mobile incorporant un tel dispositif
ATE347221T1 (de) * 2003-05-23 2006-12-15 Sony Ericsson Mobile Comm Ab Automatische leistungregelungschaltung für eine qam-sendeeinrichtung in einem drahtlosen kommunikationsgerät
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
US8175553B2 (en) 2007-01-17 2012-05-08 Motorola Solutions, Inc. Wireless communication unit, linearised transmitter circuit and method of linearising therein
GB2445776B (en) 2007-01-17 2009-08-19 Motorola 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 (zh) * 2009-10-14 2015-05-20 中兴通讯股份有限公司 射频拉远单元
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
CN102823142B (zh) * 2010-03-23 2014-09-17 瑞典爱立信有限公司 用于减少干扰的电路和方法
RU2516868C1 (ru) * 2012-12-25 2014-05-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" Система радиосвязи с подвижными объектами
RU2535922C1 (ru) * 2013-10-15 2014-12-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" Система радиосвязи с подвижными объектами
RU2535923C1 (ru) * 2013-10-15 2014-12-20 Открытое акционерное общество "Научно-производственное предприятие "Полет" Система радиосвязи с подвижными объектами
WO2017030935A1 (en) 2015-08-14 2017-02-23 Viasat, Inc. Digital dynamic bias circuit
DE102019134540B4 (de) * 2019-12-16 2021-08-05 Hytera Mobilfunk Gmbh Verfahren zur Fehlerüberwachung einer Antennenanlage einer Basisstation, Überwachungssystem, Testeinrichtung, Basisstation und Computerprogramm hierzu
RU2746148C1 (ru) * 2020-07-17 2021-04-07 Акционерное общество "Научно-производственное предприятие "Полет" Система радиосвязи с подвижными объектами

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (de) * 1988-09-22 1990-04-05 Siemens Ag Verfahren zur neusynchronisation einer vermittlungsstelle in einem fernmeldenetz
IT1239472B (it) * 1990-04-09 1993-11-02 Sits Soc It Telecom Siemens Linearizzatore del tipo a predistorsione per amplificatori di potenza a microonde
WO1992008297A1 (en) * 1990-10-24 1992-05-14 Motorola, Inc. An apparatus and method for varying a signal in a transmitter of a transceiver
US5066923A (en) * 1990-10-31 1991-11-19 Motorola, Inc. Linear transmitter training method and apparatus
GB2265269B (en) * 1992-03-02 1995-08-30 Motorola Ltd Radio transmitter with linearization training sequence
GB2265270B (en) * 1992-03-02 1996-06-12 Motorola Ltd Rf power amplifier with linearization
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
GB2272133A (en) 1994-05-04
DE4395427C2 (de) 2000-07-27
CA2126987C (en) 2004-06-22
FI943189A0 (fi) 1994-07-01
HU218633B (hu) 2000-10-28
RU2109403C1 (ru) 1998-04-20
AU5149493A (en) 1994-05-24
AT407814B (de) 2001-06-25
GB2272133B (en) 1996-06-12
HU9401972D0 (en) 1994-09-28
NL9320020A (nl) 1994-11-01
RO119672B1 (ro) 2005-01-28
NL194188B (nl) 2001-04-02
GR3032966T3 (en) 2000-07-31
TR28221A (tr) 1996-03-21
SE516994C2 (sv) 2002-04-02
IL107253A0 (en) 1994-01-25
MY110064A (en) 1997-12-31
PT619927E (pt) 2000-04-28
EP0619927B1 (en) 2000-01-12
FI107095B (fi) 2001-05-31
CN1051417C (zh) 2000-04-12
DK79394A (da) 1994-07-01
PL304341A1 (en) 1995-01-09
WO1994010765A1 (en) 1994-05-11
IL107253A (en) 1996-09-12
PL173528B1 (pl) 1998-03-31
FI943189A (fi) 1994-07-01
CN1089415A (zh) 1994-07-13
EP0619927A1 (en) 1994-10-19
BR9305710A (pt) 1996-12-31
DK173776B1 (da) 2001-10-08
SE9402325D0 (sv) 1994-07-01
DE4395427T1 (de) 1994-12-01
ES2098185B1 (es) 1997-12-16
RO119671B1 (ro) 2005-01-28
IN187365B (es) 2002-04-06
ES2098185A1 (es) 1997-04-16
ATA901693A (de) 2000-10-15
AU664497B2 (en) 1995-11-16
CA2126987A1 (en) 1994-05-11
US5559807A (en) 1996-09-24
GB9222922D0 (en) 1992-12-16
HUT68149A (en) 1995-05-29
HK1000750A1 (en) 1998-04-24
SE9402325L (sv) 1994-08-29

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BB A search report has been drawn up
BA A request for search or an international-type search has been filed
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BK Erratum

Free format text: PAT. BUL. 10/2001, HEADING P, SECTION 2, PAGE 1181, PATENT NUMBER 194188; THE TITLE OF THE INVENTION SHOULD READ: MOBIEL TIJDMULTIPLEX-RADIO-STELSEL MET LINEARISATIE VAN DE VERMOGENSVERSTERKERS BEHORENDE TOT DE ZENDERS VAN DE AFSTANDSEENHEDEN BEHORENDE TOT HET STELSEL.

V4 Discontinued because of reaching the maximum lifetime of a patent

Effective date: 20131007