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 PDFInfo
- 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
- Authority
- NL
- Netherlands
- Prior art keywords
- channel
- time
- linearization
- transmission
- time slots
- Prior art date
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
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)
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 (fr) |
EP (1) | EP0619927B1 (fr) |
CN (1) | CN1051417C (fr) |
AT (1) | AT407814B (fr) |
AU (1) | AU664497B2 (fr) |
BR (1) | BR9305710A (fr) |
CA (1) | CA2126987C (fr) |
DE (2) | DE4395427T1 (fr) |
DK (1) | DK173776B1 (fr) |
ES (1) | ES2098185B1 (fr) |
FI (1) | FI107095B (fr) |
GB (1) | GB2272133B (fr) |
GR (1) | GR3032966T3 (fr) |
HK (1) | HK1000750A1 (fr) |
HU (1) | HU218633B (fr) |
IL (1) | IL107253A (fr) |
IN (1) | IN187365B (fr) |
MY (1) | MY110064A (fr) |
NL (1) | NL194188C (fr) |
PL (1) | PL173528B1 (fr) |
PT (1) | PT619927E (fr) |
RO (2) | RO119672B1 (fr) |
RU (1) | RU2109403C1 (fr) |
SE (1) | SE516994C2 (fr) |
TR (1) | TR28221A (fr) |
WO (1) | WO1994010765A1 (fr) |
Families Citing this family (43)
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 (fr) | 1997-09-13 | 1999-03-17 | Deutsche Thomson-Brandt Gmbh | Système de communication à l'intérieur et synchronisation d'un récepteur |
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 |
AU2003207657A1 (en) | 2002-01-22 | 2003-09-02 | 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 |
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 |
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 |
DE60310038T2 (de) * | 2003-05-23 | 2007-06-28 | Sony Ericsson Mobile Communications Ab | QAM-Sender einer drahtlosen Kommunikationsvorrichtung und Verfahren zur Stabilisierung des Leistungspegels des QAM-Senders in einer zellularen Netzwerkumgebung |
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 |
US8139676B2 (en) | 2007-01-17 | 2012-03-20 | 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 (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 |
EP2550746B1 (fr) * | 2010-03-23 | 2014-05-28 | Telefonaktiebolaget LM Ericsson (publ) | Circuit et procédé de réduction de brouillage |
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 |
CA3141955C (fr) | 2015-08-14 | 2023-09-19 | Viasat, Inc. | Alimentation de tension regulee de reaction en chaine multi-etage |
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)
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 |
CA2069476C (fr) * | 1990-10-24 | 1996-12-17 | Stephen Vincent Cahill | Dispositif et methode pour faire varier un signal dans un emetteur ou un emetteur-recepteur |
US5066923A (en) * | 1990-10-31 | 1991-11-19 | Motorola, Inc. | Linear transmitter training method and apparatus |
GB2265270B (en) * | 1992-03-02 | 1996-06-12 | Motorola Ltd | Rf power amplifier with linearization |
GB2265269B (en) * | 1992-03-02 | 1995-08-30 | Motorola Ltd | Radio transmitter with linearization training sequence |
US5440544A (en) * | 1993-12-27 | 1995-08-08 | General Electric Company | Integrated data link concept for air traffic control applications |
-
1992
- 1992-11-02 GB GB9222922A patent/GB2272133B/en not_active Expired - Lifetime
-
1993
- 1993-10-07 EP EP93922524A patent/EP0619927B1/fr not_active Expired - Lifetime
- 1993-10-07 DE DE4395427T patent/DE4395427T1/de active Granted
- 1993-10-07 PT PT93922524T patent/PT619927E/pt unknown
- 1993-10-07 DE DE4395427A patent/DE4395427C2/de not_active Expired - Lifetime
- 1993-10-07 CA CA002126987A patent/CA2126987C/fr not_active Expired - Lifetime
- 1993-10-07 RO ROA200101241A patent/RO119672B1/ro unknown
- 1993-10-07 NL NL9320020A patent/NL194188C/nl not_active IP Right Cessation
- 1993-10-07 WO PCT/EP1993/002743 patent/WO1994010765A1/fr active IP Right Grant
- 1993-10-07 RO RO94-01115A patent/RO119671B1/ro unknown
- 1993-10-07 BR BR9305710A patent/BR9305710A/pt not_active IP Right Cessation
- 1993-10-07 AT AT0901693A patent/AT407814B/de not_active IP Right Cessation
- 1993-10-07 AU AU51494/93A patent/AU664497B2/en not_active Expired
- 1993-10-07 US US08/256,299 patent/US5559807A/en not_active Expired - Lifetime
- 1993-10-07 ES ES09450017A patent/ES2098185B1/es not_active Expired - Fee Related
- 1993-10-07 RU RU94035751A patent/RU2109403C1/ru active
- 1993-10-07 HU HU9401972A patent/HU218633B/hu unknown
- 1993-10-07 PL PL93304341A patent/PL173528B1/pl unknown
- 1993-10-12 IL IL10725393A patent/IL107253A/en not_active IP Right Cessation
- 1993-10-14 IN IN1149DE1993 patent/IN187365B/en unknown
- 1993-10-19 MY MYPI93002140A patent/MY110064A/en unknown
- 1993-10-30 CN CN93114498A patent/CN1051417C/zh not_active Expired - Lifetime
- 1993-11-01 TR TR00991/93A patent/TR28221A/xx unknown
-
1994
- 1994-07-01 SE SE9402325A patent/SE516994C2/sv not_active IP Right Cessation
- 1994-07-01 FI FI943189A patent/FI107095B/fi not_active IP Right Cessation
- 1994-07-01 DK DK199400793A patent/DK173776B1/da not_active IP Right Cessation
-
1997
- 1997-12-01 HK HK97102295A patent/HK1000750A1/xx not_active IP Right Cessation
-
2000
- 2000-03-16 GR GR20000400666T patent/GR3032966T3/el unknown
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Legal Events
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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. |
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V4 | Discontinued because of reaching the maximum lifetime of a patent |
Effective date: 20131007 |