AR044595A1 - Procesamiento de señal digital (dsp) utilizado para compensar la fuga de portadora introducida en un transmisor de radio analogo - Google Patents
Procesamiento de señal digital (dsp) utilizado para compensar la fuga de portadora introducida en un transmisor de radio analogoInfo
- Publication number
- AR044595A1 AR044595A1 ARP040101913A ARP040101913A AR044595A1 AR 044595 A1 AR044595 A1 AR 044595A1 AR P040101913 A ARP040101913 A AR P040101913A AR P040101913 A ARP040101913 A AR P040101913A AR 044595 A1 AR044595 A1 AR 044595A1
- Authority
- AR
- Argentina
- Prior art keywords
- radio transmitter
- analog radio
- dsp
- compensate
- signal processing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
-
- 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
- H03F1/3294—Acting on the real and imaginary components of the input signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Un método y sistema para ajustar las características de amplitud y fase de señales de comunicación inalámbrica generadas por un transmisor de radio análogo, en base a señales de control de potencia de transmisión (TPC) recibidas por una estación base (BS) y características conocidas de un amplificador de potencia (PA) incluido en el transmisor. Un módulo de compensación digital pre-distorsión, que tiene vías de señal real e imaginaria, recibe y procesa componentes de señal real e imaginaria utilizados para generar la señal de comunicación inalámbrica. Las características de fase y amplitud de la señal de comunicación inalámbrica son controladas en respuesta a las señales TPC, de manera de corregir las características de amplitud y fase alteradas del PA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47631503P | 2003-06-06 | 2003-06-06 | |
US10/749,025 US6907025B2 (en) | 2003-06-06 | 2003-12-30 | Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics |
Publications (1)
Publication Number | Publication Date |
---|---|
AR044595A1 true AR044595A1 (es) | 2005-09-21 |
Family
ID=33514078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP040101913A AR044595A1 (es) | 2003-06-06 | 2004-06-03 | Procesamiento de señal digital (dsp) utilizado para compensar la fuga de portadora introducida en un transmisor de radio analogo |
Country Status (10)
Country | Link |
---|---|
US (3) | US6907025B2 (es) |
EP (1) | EP1634400A4 (es) |
JP (1) | JP4327848B2 (es) |
KR (2) | KR100694788B1 (es) |
AR (1) | AR044595A1 (es) |
CA (1) | CA2528128A1 (es) |
MX (1) | MXPA05013194A (es) |
NO (1) | NO20060061L (es) |
TW (3) | TWI242943B (es) |
WO (1) | WO2005002107A1 (es) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7340265B2 (en) | 2002-02-28 | 2008-03-04 | Atheros Communications, Inc. | Method and apparatus for transient frequency distortion compensation |
JP2006526916A (ja) * | 2003-05-09 | 2006-11-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 移動体通信装置の送信電力を設定するための方法および装置 |
US6907025B2 (en) * | 2003-06-06 | 2005-06-14 | Interdigital Technology Corporation | Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics |
US7062234B2 (en) * | 2003-07-28 | 2006-06-13 | Andrew Corporation | Pre-distortion cross-cancellation for linearizing power amplifiers |
JP2005252471A (ja) * | 2004-03-02 | 2005-09-15 | Fujitsu Ltd | 無線通信装置及びその増幅回路の制御方法 |
US7693491B2 (en) * | 2004-11-30 | 2010-04-06 | Broadcom Corporation | Method and system for transmitter output power compensation |
CN100459767C (zh) * | 2005-05-27 | 2009-02-04 | 华为技术有限公司 | 防止功率放大器发生过激的方法和装置 |
US7355477B2 (en) * | 2006-06-13 | 2008-04-08 | Agere Systems Inc. | Transmitter power control loop for high-speed wireless LANs |
US7881681B2 (en) * | 2006-08-28 | 2011-02-01 | Mediatek Inc. | Self-calibrating direct conversion transmitter with converting/steering device |
US20080112506A1 (en) * | 2006-11-13 | 2008-05-15 | Motorola, Inc. | Transmission power optimization |
CN101542950B (zh) * | 2007-03-08 | 2014-02-19 | 日本电气株式会社 | Ofdm调制波输出装置和失真补偿方法 |
US7869543B2 (en) * | 2007-03-13 | 2011-01-11 | Pine Valley Investments, Inc. | System and method for synchronization, power control, calibration, and modulation in communication transmitters |
US8009765B2 (en) * | 2007-03-13 | 2011-08-30 | Pine Valley Investments, Inc. | Digital polar transmitter |
US8005162B2 (en) * | 2007-04-20 | 2011-08-23 | Microelectronics Technology, Inc. | Dynamic digital pre-distortion system |
EP2086269B1 (en) * | 2008-01-31 | 2017-03-15 | Mediatek Inc. | A transmit power controller |
CN101610093B (zh) * | 2008-06-17 | 2012-09-05 | 富士通株式会社 | 预失真装置、预失真***和预失真方法 |
JP4793599B2 (ja) | 2008-11-18 | 2011-10-12 | 日本電気株式会社 | Ofdma方式の無線通信装置、該無線通信装置による非線形歪み補償のための学習信号生成方法 |
US8073406B2 (en) | 2008-12-16 | 2011-12-06 | Mediatek Inc. | Amplitude modulation circuit in polar transmitter and method for calibrating amplitude offset in polar transmitter |
US8792581B2 (en) * | 2010-02-18 | 2014-07-29 | Telefonaktiebolaget Lm Ericsson (Publ) | RF clock generator with spurious tone cancellation |
CN102082752B (zh) * | 2010-02-25 | 2014-03-19 | 电信科学技术研究院 | 一种数字预失真处理方法及设备 |
US8154432B2 (en) * | 2010-03-22 | 2012-04-10 | Raytheon Company | Digital to analog converter (DAC) having high dynamic range |
TWI462556B (zh) * | 2011-12-16 | 2014-11-21 | Univ Nat Chiao Tung | 用於正交載波分頻多工接收器之同步裝置與其方法 |
JP5925729B2 (ja) * | 2013-05-24 | 2016-05-25 | 日本電信電話株式会社 | 無線通信装置および干渉軽減制御方法 |
US9374262B1 (en) * | 2014-12-18 | 2016-06-21 | Viasat, Inc. | Techniques for linearizing phase separately from amplitude in a communications system |
CN109861754B (zh) * | 2017-11-30 | 2021-01-29 | 华为技术有限公司 | 非线性补偿的方法和光载无线通信*** |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2544496B1 (fr) * | 1983-04-15 | 1985-10-11 | Services Sa Ste Fse | Viscosimetre a tige vibrante |
EP0598585B1 (en) * | 1992-11-16 | 1999-03-31 | Linear Modulation Technology Ltd | Automatic calibration of the quadrature balance within a cartesian amplifier |
US5371481A (en) * | 1993-03-24 | 1994-12-06 | Nokia Mobile Phones Ltd. | Tuning techniques for I/Q channel signals in microwave digital transmission systems |
US5452473A (en) | 1994-02-28 | 1995-09-19 | Qualcomm Incorporated | Reverse link, transmit power correction and limitation in a radiotelephone system |
US5903823A (en) * | 1995-09-19 | 1999-05-11 | Fujitsu Limited | Radio apparatus with distortion compensating function |
US5708681A (en) * | 1996-04-23 | 1998-01-13 | Bell Communications Research, Inc. | Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver |
US6009317A (en) * | 1997-01-17 | 1999-12-28 | Ericsson Inc. | Method and apparatus for compensating for imbalances between quadrature signals |
JPH11154880A (ja) | 1997-09-05 | 1999-06-08 | Fujitsu Ltd | 信号補正方法及び装置、歪補償装置、歪補償データ作成装置及び送信機 |
DE69938529T2 (de) * | 1998-05-13 | 2009-06-10 | Samsung Electronics Co., Ltd., Suwon | Empfang von Zeitsgechalteten Sendeniversitäts-(TSTD)-Signalen und nicht-TSTD-Signalen |
US6225928B1 (en) * | 1999-03-10 | 2001-05-01 | Cirrus Logic Inc. | Complex bandpass modulator and method for analog-to-digital converters |
JP3695571B2 (ja) * | 1999-07-21 | 2005-09-14 | 株式会社エヌ・ティ・ティ・ドコモ | Cdma移動通信システムにおけるcdma受信装置および受信信号電力測定方法 |
JP3535427B2 (ja) * | 1999-11-25 | 2004-06-07 | 松下電器産業株式会社 | 無線通信装置 |
JP3381689B2 (ja) | 1999-11-30 | 2003-03-04 | 日本電気株式会社 | 非線形歪み補償回路及びそれを用いた送信装置並びに移動通信機 |
US7088958B2 (en) * | 2001-06-19 | 2006-08-08 | Intersil Americas Inc. | Remote power amplifier linearization |
US6650691B2 (en) * | 2002-02-12 | 2003-11-18 | Motorola, Inc. | Power control in spread spectrum communications systems |
US7340268B2 (en) * | 2003-02-26 | 2008-03-04 | Qualcomm Incorporated | Reliability determination and combining of power control commands received in a wireless communication system |
US6907025B2 (en) * | 2003-06-06 | 2005-06-14 | Interdigital Technology Corporation | Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics |
US8315567B2 (en) * | 2003-09-26 | 2012-11-20 | Agere Systems Inc. | Method and system for wireless communication with an integrated circuit under evaluation |
-
2003
- 2003-12-30 US US10/749,025 patent/US6907025B2/en not_active Expired - Lifetime
-
2004
- 2004-05-06 WO PCT/US2004/013906 patent/WO2005002107A1/en active Search and Examination
- 2004-05-06 KR KR1020057023396A patent/KR100694788B1/ko not_active IP Right Cessation
- 2004-05-06 KR KR1020067004064A patent/KR20060023605A/ko not_active IP Right Cessation
- 2004-05-06 MX MXPA05013194A patent/MXPA05013194A/es not_active Application Discontinuation
- 2004-05-06 CA CA002528128A patent/CA2528128A1/en not_active Abandoned
- 2004-05-06 EP EP04751325A patent/EP1634400A4/en not_active Withdrawn
- 2004-05-06 JP JP2006514289A patent/JP4327848B2/ja not_active Expired - Fee Related
- 2004-05-07 TW TW093112977A patent/TWI242943B/zh not_active IP Right Cessation
- 2004-05-07 TW TW093136655A patent/TW200541230A/zh unknown
- 2004-05-07 TW TW096116198A patent/TWI369080B/zh not_active IP Right Cessation
- 2004-06-03 AR ARP040101913A patent/AR044595A1/es not_active Application Discontinuation
-
2005
- 2005-04-07 US US11/100,903 patent/US7596125B2/en not_active Expired - Fee Related
-
2006
- 2006-01-05 NO NO20060061A patent/NO20060061L/no unknown
-
2009
- 2009-09-14 US US12/558,914 patent/US20100004018A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1634400A1 (en) | 2006-03-15 |
US6907025B2 (en) | 2005-06-14 |
EP1634400A4 (en) | 2012-02-29 |
TW200501635A (en) | 2005-01-01 |
US7596125B2 (en) | 2009-09-29 |
WO2005002107A1 (en) | 2005-01-06 |
JP4327848B2 (ja) | 2009-09-09 |
TWI369080B (en) | 2012-07-21 |
KR20060023605A (ko) | 2006-03-14 |
US20040252785A1 (en) | 2004-12-16 |
US20100004018A1 (en) | 2010-01-07 |
NO20060061L (no) | 2006-02-09 |
MXPA05013194A (es) | 2006-03-09 |
TW200818726A (en) | 2008-04-16 |
CA2528128A1 (en) | 2005-01-06 |
JP2006527534A (ja) | 2006-11-30 |
TW200541230A (en) | 2005-12-16 |
TWI242943B (en) | 2005-11-01 |
KR20060008333A (ko) | 2006-01-26 |
US20050170796A1 (en) | 2005-08-04 |
KR100694788B1 (ko) | 2007-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant, registration | ||
FD | Application declared void or lapsed, e.g., due to non-payment of fee |