ES2098185B1 - Sistemas de radio enlazados de acceso multiple de division de tiempo (tdma). - Google Patents

Sistemas de radio enlazados de acceso multiple de division de tiempo (tdma).

Info

Publication number
ES2098185B1
ES2098185B1 ES09450017A ES9450017A ES2098185B1 ES 2098185 B1 ES2098185 B1 ES 2098185B1 ES 09450017 A ES09450017 A ES 09450017A ES 9450017 A ES9450017 A ES 9450017A ES 2098185 B1 ES2098185 B1 ES 2098185B1
Authority
ES
Spain
Prior art keywords
linearization
tdma
multiple access
division multiple
intervals
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.)
Expired - Fee Related
Application number
ES09450017A
Other languages
English (en)
Other versions
ES2098185A1 (es
Inventor
Den Heuvel Anthony Patrick Van
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
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
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=ES2098185(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of ES2098185A1 publication Critical patent/ES2098185A1/es
Application granted granted Critical
Publication of ES2098185B1 publication Critical patent/ES2098185B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)

Abstract

SISTEMA DE RADIO ENLAZADOS DE ACCESO MULTIPLE DE DIVISION DE TIEMPO (TDMA), QUE COMPRENDE UNA ESTACION DE BASE Y UNA PLURALIDAD DE UNIDADES DE RADIO REMOTAS PARA COMUNICACION POR INTERVALOS DE TIEMPO DE UN CANAL DE RADIO DE TIEMPO COMPARTIDO. EL CANAL COMPRENDE INTERVALOS DE LINEALIZACION PREDETERMINADOS PARA LA TRANSMISION DE SEÑALES DE ECUALIZACION PARA LINEALIZACION, ENTREMEZCLADAS ENTRE OTROS INTERVALOS DE TIEMPO (TRAFICO O CONTROL), DE MODO QUE UNA UNIDAD REMOTA QUE TIENE OPERACION DE LINEALIZACION (TAL COMO REALIMENTACION CARTESIANA CON ECUALIZACION) PUEDE GENERAR UNA SEÑAL DE ECUALIZACION PARA LINEALIZACION DURANTE UN INTERVALO DE LINEALIZACION Y PUEDE LINEALIZAR SU AMPLIFICADOR DE POTENCIA DURANTE ESE INTERVALO CON ANTICIPACION O EN FORMA INDEPENDIENTE A LA TRANSMISION DE SEÑALES DURANTE UNO DE LOS DEMAS INTERVALOS. DE ESTA MANERA LA TRANSMISION DE SECUENCIAS DE ECUALIZACION PARA LINEALIZACION POR DISTINTAS UNIDADES REMOTAS NO INTERFIERE CON LAS SEÑALES DE TRAFICO O CONTROL.
ES09450017A 1992-11-02 1993-10-07 Sistemas de radio enlazados de acceso multiple de division de tiempo (tdma). Expired - Fee Related ES2098185B1 (es)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES2098185A1 ES2098185A1 (es) 1997-04-16
ES2098185B1 true ES2098185B1 (es) 1997-12-16

Family

ID=10724392

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09450017A Expired - Fee Related ES2098185B1 (es) 1992-11-02 1993-10-07 Sistemas de radio enlazados de acceso multiple de division de tiempo (tdma).

Country Status (25)

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)
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) RO119672B1 (es)
RU (1) RU2109403C1 (es)
SE (1) SE516994C2 (es)
TR (1) TR28221A (es)
WO (1) WO1994010765A1 (es)

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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
BR9911693B1 (pt) * 1998-06-30 2012-12-25 dispositivo para adaptaÇço de taxas de transmissço em sistemas de telecomunicaÇÕes entre aparelhos transceptores màveis e/ou fixos.
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
KR101391486B1 (ko) * 2002-01-22 2014-05-07 아이피알 라이센싱, 인코포레이티드 통신시스템에서 트래픽 채널을 할당하기 위한 방법 및 장치
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
RU2359412C2 (ru) * 2002-10-25 2009-06-20 Квэлкомм Инкорпорейтед Произвольный доступ для беспроводных коммуникационных систем с множественным доступом
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
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
US7099399B2 (en) * 2004-01-27 2006-08-29 Crestcom, Inc. Distortion-managed digital RF communications transmitter and method therefor
US7469491B2 (en) 2004-01-27 2008-12-30 Crestcom, Inc. Transmitter predistortion circuit 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
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
US10727788B2 (en) 2015-08-14 2020-07-28 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

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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
JPH05503408A (ja) * 1990-10-24 1993-06-03 モトローラ・インコーポレイテッド トランシーバの送信機内で信号を可変する装置と方法
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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
EP0619927B1 (en) 2000-01-12
SE516994C2 (sv) 2002-04-02
ES2098185A1 (es) 1997-04-16
DK173776B1 (da) 2001-10-08
IL107253A0 (en) 1994-01-25
GB9222922D0 (en) 1992-12-16
HK1000750A1 (en) 1998-04-24
HU218633B (hu) 2000-10-28
CA2126987C (en) 2004-06-22
AU5149493A (en) 1994-05-24
SE9402325D0 (sv) 1994-07-01
NL194188C (nl) 2001-08-03
AT407814B (de) 2001-06-25
ATA901693A (de) 2000-10-15
HUT68149A (en) 1995-05-29
AU664497B2 (en) 1995-11-16
NL9320020A (nl) 1994-11-01
DE4395427C2 (de) 2000-07-27
FI943189A7 (fi) 1994-07-01
HU9401972D0 (en) 1994-09-28
RO119672B1 (ro) 2005-01-28
FI107095B (fi) 2001-05-31
CN1051417C (zh) 2000-04-12
WO1994010765A1 (en) 1994-05-11
GB2272133B (en) 1996-06-12
DK79394A (da) 1994-07-01
MY110064A (en) 1997-12-31
FI943189A0 (fi) 1994-07-01
EP0619927A1 (en) 1994-10-19
PL304341A1 (en) 1995-01-09
TR28221A (tr) 1996-03-21
BR9305710A (pt) 1996-12-31
RO119671B1 (ro) 2005-01-28
PL173528B1 (pl) 1998-03-31
IN187365B (es) 2002-04-06
NL194188B (nl) 2001-04-02
CN1089415A (zh) 1994-07-13
GB2272133A (en) 1994-05-04
IL107253A (en) 1996-09-12
SE9402325L (sv) 1994-08-29
CA2126987A1 (en) 1994-05-11
PT619927E (pt) 2000-04-28
RU2109403C1 (ru) 1998-04-20
GR3032966T3 (en) 2000-07-31
US5559807A (en) 1996-09-24
DE4395427T1 (de) 1994-12-01

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