CN100444518C - 信号传输设备和方法 - Google Patents
信号传输设备和方法 Download PDFInfo
- Publication number
- CN100444518C CN100444518C CNB2004100490030A CN200410049003A CN100444518C CN 100444518 C CN100444518 C CN 100444518C CN B2004100490030 A CNB2004100490030 A CN B2004100490030A CN 200410049003 A CN200410049003 A CN 200410049003A CN 100444518 C CN100444518 C CN 100444518C
- Authority
- CN
- China
- Prior art keywords
- signal
- equipment
- look
- lut
- transport equipment
- 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
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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
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (28)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR37904/2003 | 2003-06-12 | ||
KR10-2003-0037904A KR100500031B1 (ko) | 2003-06-12 | 2003-06-12 | 비선형 송신 시스템의 선형화 장치 및 방법 |
KR1020030037972A KR100562666B1 (ko) | 2003-06-12 | 2003-06-12 | 비선형 송신 시스템의 선형화 장치 및 방법 |
KR37972/2003 | 2003-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1606232A CN1606232A (zh) | 2005-04-13 |
CN100444518C true CN100444518C (zh) | 2008-12-17 |
Family
ID=33513456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100490030A Expired - Fee Related CN100444518C (zh) | 2003-06-12 | 2004-06-14 | 信号传输设备和方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7340005B2 (zh) |
CN (1) | CN100444518C (zh) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7738573B2 (en) * | 2004-10-07 | 2010-06-15 | Microelectronics Technology Inc. | System and method for crest factor reduction |
EP1732207B1 (en) * | 2005-06-03 | 2008-02-13 | NTT DoCoMo INC. | Multi-Band lookup table type predistorter |
US8498590B1 (en) * | 2006-04-04 | 2013-07-30 | Apple Inc. | Signal transmitter linearization |
WO2008038904A1 (en) * | 2006-09-29 | 2008-04-03 | Electronics And Telecommunications Research Institute | Linearizer for ubiquitous sensor node |
US20080130785A1 (en) * | 2006-12-04 | 2008-06-05 | Raytheon Company | Frequency and temperature dependent pre-distortion |
US8682315B2 (en) * | 2007-08-23 | 2014-03-25 | Texas Instruments Incorporated | Predistortion system and method based on look up table interpolation |
US8014467B2 (en) * | 2008-02-14 | 2011-09-06 | Broadcom Corporation | Transmitter pre-distortion across wide transmit power dynamic range |
WO2009125323A1 (en) * | 2008-04-08 | 2009-10-15 | Nxp B.V. | Power amplifying unit and method for controlling a power amplifier unit |
GB2463511A (en) * | 2008-09-10 | 2010-03-17 | Asahi Kasei Emd Corp | A class E amplifier with power supply modulation and a predistorted input signal |
US8390377B2 (en) * | 2008-12-27 | 2013-03-05 | Sumitomo Electric Industries, Ltd. | Distortion compensating circuit and radio base station |
DE102010038482B4 (de) * | 2009-07-31 | 2014-07-24 | Intel Mobile Communications GmbH | Digitale Vorverzerrung und Kompensation einer Betriebsbedingungsauswirkung |
US8615208B2 (en) | 2010-11-02 | 2013-12-24 | Crestcom, Inc. | Transmitter linearized in response to signal magnitude derivative parameter and method therefor |
US8489047B2 (en) * | 2010-11-02 | 2013-07-16 | Crestcom, Inc. | Transmitter linearized using bias deviation gain adjustment and method therefor |
US8611459B2 (en) * | 2012-02-29 | 2013-12-17 | Crestcom, Inc. | Transmitter linearized using look-up table with unadaptable data and method therefor |
MX367848B (es) * | 2015-04-01 | 2019-09-09 | Huawei Tech Co Ltd | Aparato y método de generación de tabla de búsqueda, y aparato y método de pre-compensación. |
CN110545079B (zh) * | 2018-05-29 | 2021-04-16 | 大唐移动通信设备有限公司 | 一种dpd查找表生成方法及装置 |
CN110161440A (zh) * | 2019-04-29 | 2019-08-23 | 上海东软医疗科技有限公司 | 一种接收机、信号接收方法及磁共振成像设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85101923A (zh) * | 1985-04-01 | 1987-01-17 | 菲利浦光灯制造公司 | 频率合成式多通道无线电装置 |
EP0967717A2 (en) * | 1998-05-27 | 1999-12-29 | Nokia Mobile Phones Ltd. | Predistortion control for power reduction |
US6141390A (en) * | 1997-05-05 | 2000-10-31 | Glenayre Electronics, Inc. | Predistortion in a linear transmitter using orthogonal kernels |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5740520A (en) * | 1996-04-03 | 1998-04-14 | State Of Israel | Channel correction transceiver |
DE59810878D1 (de) * | 1997-07-08 | 2004-04-08 | Siemens Ag | Sendeeinrichtung |
US6614854B1 (en) * | 1999-05-28 | 2003-09-02 | Carriercomm, Inc. | System and method for adaptive predistortion |
AU2000227987A1 (en) * | 2000-01-26 | 2001-08-07 | Nokia Corporation | Method and system for compensating non-linearities and time-varying changes of atransfer function acting on an input signal |
JP2002111397A (ja) * | 2000-09-29 | 2002-04-12 | Sony Corp | 歪補償装置及び歪補償方法 |
US6985704B2 (en) * | 2002-05-01 | 2006-01-10 | Dali Yang | System and method for digital memorized predistortion for wireless communication |
US7215716B1 (en) * | 2002-06-25 | 2007-05-08 | Francis J. Smith | Non-linear adaptive AM/AM and AM/PM pre-distortion compensation with time and temperature compensation for low power applications |
-
2004
- 2004-06-03 US US10/862,108 patent/US7340005B2/en not_active Expired - Fee Related
- 2004-06-14 CN CNB2004100490030A patent/CN100444518C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85101923A (zh) * | 1985-04-01 | 1987-01-17 | 菲利浦光灯制造公司 | 频率合成式多通道无线电装置 |
US6141390A (en) * | 1997-05-05 | 2000-10-31 | Glenayre Electronics, Inc. | Predistortion in a linear transmitter using orthogonal kernels |
EP0967717A2 (en) * | 1998-05-27 | 1999-12-29 | Nokia Mobile Phones Ltd. | Predistortion control for power reduction |
Also Published As
Publication number | Publication date |
---|---|
CN1606232A (zh) | 2005-04-13 |
US7340005B2 (en) | 2008-03-04 |
US20040252783A1 (en) | 2004-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: LG- NORTEL CO., LTD. Free format text: FORMER OWNER: LG ELECTRONIC CO., LTD. Effective date: 20061117 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20061117 Address after: Seoul, South Kerean Applicant after: LG Nortel Co., Ltd. Address before: Seoul, South Kerean Applicant before: LG Electronics Inc. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: LG-ERICSSON CO., LTD. Free format text: FORMER NAME: LG-NORTEL CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Seoul, South Kerean Patentee after: Novera Optics Korea Co., Ltd. Address before: Seoul, South Kerean Patentee before: LG Nortel Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20160614 |