CN1647395A - 使用基带变换改进发射机性能的方法和装置 - Google Patents
使用基带变换改进发射机性能的方法和装置 Download PDFInfo
- Publication number
- CN1647395A CN1647395A CN03806277.1A CN03806277A CN1647395A CN 1647395 A CN1647395 A CN 1647395A CN 03806277 A CN03806277 A CN 03806277A CN 1647395 A CN1647395 A CN 1647395A
- Authority
- CN
- China
- Prior art keywords
- signal
- output
- output signal
- signals
- coupled
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
-
- 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
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0483—Transmitters with multiple parallel paths
Abstract
Description
Vout1 | Vout2 | Vout3 | Vout4 | |
Vin1 | 0.5∠0 | 0.5∠-90 | 0.5∠-90 | 0.5∠-180 |
Vin2 | 0.5∠-90 | 0.5∠-180 | 0.5∠0 | 0.5∠-90 |
Vin3 | 0.5∠-90 | 0.5∠0 | 0.5∠-180 | 0.5∠-90 |
Vin4 | 0.5∠-180 | 0.5∠-90 | 0.5∠-90 | 0.5∠0 |
点1 | 点2 | 点3 | 点4 | |
峰值功率(dB) | 0 | -6.430 | -5.754 | -6.909 |
峰值功率@0.01%(dB) | 0 | -6.435 | -5.655 | -6.629 |
平均功率(dB) | 0 | -1.255 | -1.525 | -1.539 |
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/101,903 | 2002-03-19 | ||
US10/101,903 US6983026B2 (en) | 2002-03-19 | 2002-03-19 | Method and apparatus using base band transformation to improve transmitter performance |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1647395A true CN1647395A (zh) | 2005-07-27 |
CN100373782C CN100373782C (zh) | 2008-03-05 |
Family
ID=28040094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB038062771A Expired - Lifetime CN100373782C (zh) | 2002-03-19 | 2003-02-07 | 使用基带变换改进发射机性能的方法和装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6983026B2 (zh) |
EP (1) | EP1486005B1 (zh) |
JP (1) | JP4261367B2 (zh) |
KR (1) | KR100958046B1 (zh) |
CN (1) | CN100373782C (zh) |
AT (1) | ATE466413T1 (zh) |
AU (1) | AU2003216211A1 (zh) |
DE (1) | DE60332332D1 (zh) |
WO (1) | WO2003081792A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103078657A (zh) * | 2011-09-09 | 2013-05-01 | Nxp股份有限公司 | 自适应均衡器和/或天线调谐 |
CN104040883A (zh) * | 2011-09-09 | 2014-09-10 | 奥普蒂斯蜂窝技术有限责任公司 | 多频带发射机中的单一功率放大器的线性化 |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6983026B2 (en) | 2002-03-19 | 2006-01-03 | Motorola, Inc. | Method and apparatus using base band transformation to improve transmitter performance |
US8380143B2 (en) | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
US8472897B1 (en) | 2006-12-22 | 2013-06-25 | Dali Systems Co. Ltd. | Power amplifier predistortion methods and apparatus |
US6985704B2 (en) | 2002-05-01 | 2006-01-10 | Dali Yang | System and method for digital memorized predistortion for wireless communication |
JP3913139B2 (ja) * | 2002-08-19 | 2007-05-09 | 沖電気工業株式会社 | Cdma送信装置、cdma多重送信装置、cdma受信装置及びcdma通信システム |
JP4063612B2 (ja) * | 2002-08-26 | 2008-03-19 | 株式会社エヌ・ティ・ティ・ドコモ | 送信機 |
US7248656B2 (en) * | 2002-12-02 | 2007-07-24 | Nortel Networks Limited | Digital convertible radio SNR optimization |
US20040219889A1 (en) * | 2003-04-29 | 2004-11-04 | Walter Honcharenko | Phase-combined transmitter module and modular transmitter system |
US20050111576A1 (en) * | 2003-11-24 | 2005-05-26 | Kiomars Anvari | Peak-to-average reduction technique for multi-carrier power amplifiers |
US20050118966A1 (en) * | 2003-12-01 | 2005-06-02 | Kiomars Anvari | Simple Crest Factor reduction technique for multi-carrier signals |
US7738573B2 (en) * | 2004-10-07 | 2010-06-15 | Microelectronics Technology Inc. | System and method for crest factor reduction |
WO2006051507A1 (en) * | 2004-11-12 | 2006-05-18 | Koninklijke Philips Electronics N.V. | Radio communication system, receiver and transmitter |
US20060105723A1 (en) * | 2004-11-17 | 2006-05-18 | Kiomars Anvari | Simple crest factor reduction technique for non-constant envelope signals |
EP1659703A1 (en) * | 2004-11-17 | 2006-05-24 | Alcatel | Method and means for decreasing the peak to average power ratio in mobile phones |
US7668266B2 (en) * | 2005-03-18 | 2010-02-23 | Georgia Tech Research Corporation | Crest factor reduction in OFDM using blind selected pilot tone modulation |
US7586995B1 (en) | 2005-04-18 | 2009-09-08 | Altera Corporation | Peak windowing for crest factor reduction |
US8145251B2 (en) | 2006-01-23 | 2012-03-27 | Motorola Mobility, Inc. | Power control in schedulable wireless communication terminal |
US20070173260A1 (en) * | 2006-01-23 | 2007-07-26 | Love Robert T | Wireless communication network scheduling |
JP4680077B2 (ja) * | 2006-02-02 | 2011-05-11 | 三菱電機株式会社 | Ofdm通信器 |
JP4750592B2 (ja) * | 2006-03-17 | 2011-08-17 | 富士通株式会社 | ピーク抑圧方法、ピーク抑圧装置、無線送信装置 |
CN101479956B (zh) | 2006-04-28 | 2013-07-31 | 大力系统有限公司 | 用于无线通信的高效率线性化功率放大器 |
US7738594B2 (en) * | 2006-06-30 | 2010-06-15 | Intel Corporation | Method to maintain RF power amplifier linearity in varying load VSWR conditions without isolator |
US20080025254A1 (en) * | 2006-07-25 | 2008-01-31 | Motorola Inc | Spectrum emission level variation in schedulable wireless communication terminal |
US9622190B2 (en) | 2006-07-25 | 2017-04-11 | Google Technology Holdings LLC | Spectrum emission level variation in schedulable wireless communication terminal |
US7480346B2 (en) * | 2006-09-13 | 2009-01-20 | Motorola, Inc. | Method and apparatus for improving sector to sector isolation in a Fourier transform matrix system |
US8411709B1 (en) | 2006-11-27 | 2013-04-02 | Marvell International Ltd. | Use of previously buffered state information to decode in an hybrid automatic repeat request (H-ARQ) transmission mode |
CN102017553B (zh) | 2006-12-26 | 2014-10-15 | 大力系统有限公司 | 用于多信道宽带通信系统中的基带预失真线性化的方法和系统 |
US9026067B2 (en) | 2007-04-23 | 2015-05-05 | Dali Systems Co. Ltd. | Remotely reconfigurable power amplifier system and method |
US8274332B2 (en) | 2007-04-23 | 2012-09-25 | Dali Systems Co. Ltd. | N-way Doherty distributed power amplifier with power tracking |
US8224266B2 (en) * | 2007-08-30 | 2012-07-17 | Dali Systems Co., Ltd. | Power amplifier predistortion methods and apparatus using envelope and phase detector |
US8897393B1 (en) | 2007-10-16 | 2014-11-25 | Marvell International Ltd. | Protected codebook selection at receiver for transmit beamforming |
US8542725B1 (en) | 2007-11-14 | 2013-09-24 | Marvell International Ltd. | Decision feedback equalization for signals having unequally distributed patterns |
US8213884B2 (en) * | 2007-12-07 | 2012-07-03 | Dali System Co. Ltd. | Baseband-derived RF digital predistortion |
US8140606B2 (en) * | 2007-12-17 | 2012-03-20 | Motorola Mobility, Inc. | Method and apparatus for a fail safe fourier transform matrix |
US8565325B1 (en) | 2008-03-18 | 2013-10-22 | Marvell International Ltd. | Wireless device communication in the 60GHz band |
US8498342B1 (en) | 2008-07-29 | 2013-07-30 | Marvell International Ltd. | Deblocking filtering |
US8761261B1 (en) | 2008-07-29 | 2014-06-24 | Marvell International Ltd. | Encoding using motion vectors |
US8345533B1 (en) | 2008-08-18 | 2013-01-01 | Marvell International Ltd. | Frame synchronization techniques |
US8681893B1 (en) | 2008-10-08 | 2014-03-25 | Marvell International Ltd. | Generating pulses using a look-up table |
US8761834B2 (en) * | 2008-12-31 | 2014-06-24 | Motorola Mobility Llc | Method and apparatus for antenna selection and power control in a multiple input multiple output wireless communication system |
US8520771B1 (en) * | 2009-04-29 | 2013-08-27 | Marvell International Ltd. | WCDMA modulation |
CA2714786A1 (en) * | 2009-09-14 | 2011-03-14 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Canada | Multi-carrier amplifier linearization system and method |
US8351543B2 (en) * | 2009-12-21 | 2013-01-08 | Ubidyne, Inc. | Active antenna array with modulator-based pre-distortion |
KR101763970B1 (ko) * | 2009-12-21 | 2017-08-14 | 달리 시스템즈 씨오. 엘티디. | 무선 통신을 위한 고효율의 원격으로 구성 가능한 원격 무선 헤드 유닛 시스템 |
CN102948081B (zh) | 2009-12-21 | 2016-06-01 | 大力系统有限公司 | 具有宽带功率放大器的远程射频头单元及方法 |
EP2517353B1 (en) * | 2009-12-21 | 2016-04-20 | Dali Systems Co. Ltd. | Modulation agnostic digital hybrid mode power amplifier system and method |
US8542768B2 (en) | 2009-12-21 | 2013-09-24 | Dali Systems Co. Ltd. | High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
US8351877B2 (en) | 2010-12-21 | 2013-01-08 | Dali Systems Co. Ltfd. | Multi-band wideband power amplifier digital predistorition system and method |
US8817771B1 (en) | 2010-07-16 | 2014-08-26 | Marvell International Ltd. | Method and apparatus for detecting a boundary of a data frame in a communication network |
KR102136940B1 (ko) | 2010-09-14 | 2020-07-23 | 달리 시스템즈 씨오. 엘티디. | 원격으로 재구성가능한 분산 안테나 시스템 및 방법 |
US8750410B2 (en) * | 2010-09-22 | 2014-06-10 | Texas Instruments Incorporated | Multi-band power amplifier digital predistortion system and method |
US8934500B2 (en) | 2011-04-13 | 2015-01-13 | Motorola Mobility Llc | Method and apparatus using two radio access technologies for scheduling resources in wireless communication systems |
US9565655B2 (en) | 2011-04-13 | 2017-02-07 | Google Technology Holdings LLC | Method and apparatus to detect the transmission bandwidth configuration of a channel in connection with reducing interference between channels in wireless communication systems |
JP5794163B2 (ja) * | 2012-02-03 | 2015-10-14 | アイコム株式会社 | 通信機および通信方法 |
CN102594749A (zh) * | 2012-02-28 | 2012-07-18 | 中兴通讯股份有限公司 | 一种数字预失真处理方法及装置 |
EP3005554B1 (en) * | 2013-06-05 | 2021-01-27 | Telefonaktiebolaget LM Ericsson (publ) | Digital predistortion of wideband power amplifiers with reduced observation bandwidth |
KR102140299B1 (ko) * | 2014-01-27 | 2020-07-31 | 한국전자통신연구원 | 논리 레벨에 대응하는 전기 특성 값을 조절하는 송신 장치 및 그것의 신호 전송 방법 |
WO2018224161A1 (en) * | 2017-06-09 | 2018-12-13 | Nokia Technologies Oy | Reducing distortions in amplified signals to be radiated by an antenna |
US10594530B2 (en) * | 2018-05-29 | 2020-03-17 | Qualcomm Incorporated | Techniques for successive peak reduction crest factor reduction |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5287387A (en) | 1992-03-06 | 1994-02-15 | Motorola, Inc. | Low splatter peak-to-average signal reduction |
US5574967A (en) | 1994-01-11 | 1996-11-12 | Ericsson Ge Mobile Communications, Inc. | Waste energy control and management in power amplifiers |
US5638403A (en) | 1995-04-28 | 1997-06-10 | Motorola, Inc. | Low-splatter peak-to-average signal reduction with interpolation |
US5862457A (en) | 1995-12-21 | 1999-01-19 | Lucent Technologies, Inc. | Multichannel predistortion linearizer |
US5732333A (en) * | 1996-02-14 | 1998-03-24 | Glenayre Electronics, Inc. | Linear transmitter using predistortion |
GB2313525B (en) * | 1996-05-24 | 2000-06-07 | Motorola Ltd | Filter for multicarrier communication system and method for peak power control therein |
US5920808A (en) * | 1996-12-12 | 1999-07-06 | Glenayre Electronics, Inc. | Method and apparatus for reducing key-up distortion by pre-heating transistors |
US5886573A (en) | 1998-03-06 | 1999-03-23 | Fujant, Inc. | Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier |
US6381212B1 (en) * | 1998-06-17 | 2002-04-30 | Radio Frequency Systems, Inc. | Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers |
US6236837B1 (en) | 1998-07-30 | 2001-05-22 | Motorola, Inc. | Polynomial Predistortion linearizing device, method, phone and base station |
US6304140B1 (en) | 2000-06-12 | 2001-10-16 | Motorola, Inc. | Digital predistortion for amplifiers |
US7065154B2 (en) * | 2000-12-29 | 2006-06-20 | Nokia Corporation | Baseband predistortion method for multicarrier transmitters |
US6983026B2 (en) | 2002-03-19 | 2006-01-03 | Motorola, Inc. | Method and apparatus using base band transformation to improve transmitter performance |
-
2002
- 2002-03-19 US US10/101,903 patent/US6983026B2/en not_active Expired - Lifetime
-
2003
- 2003-02-07 WO PCT/US2003/003876 patent/WO2003081792A1/en active Application Filing
- 2003-02-07 CN CNB038062771A patent/CN100373782C/zh not_active Expired - Lifetime
- 2003-02-07 EP EP03745074A patent/EP1486005B1/en not_active Expired - Lifetime
- 2003-02-07 JP JP2003579378A patent/JP4261367B2/ja not_active Expired - Lifetime
- 2003-02-07 AT AT03745074T patent/ATE466413T1/de not_active IP Right Cessation
- 2003-02-07 DE DE60332332T patent/DE60332332D1/de not_active Expired - Lifetime
- 2003-02-07 AU AU2003216211A patent/AU2003216211A1/en not_active Abandoned
- 2003-02-07 KR KR1020047014701A patent/KR100958046B1/ko active IP Right Grant
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103078657A (zh) * | 2011-09-09 | 2013-05-01 | Nxp股份有限公司 | 自适应均衡器和/或天线调谐 |
CN104040883A (zh) * | 2011-09-09 | 2014-09-10 | 奥普蒂斯蜂窝技术有限责任公司 | 多频带发射机中的单一功率放大器的线性化 |
CN103078657B (zh) * | 2011-09-09 | 2014-11-19 | Nxp股份有限公司 | 使用天线进行无线通信的设备和方法及双向无线通信设备 |
US9077571B2 (en) | 2011-09-09 | 2015-07-07 | Nxp B.V. | Adaptive equalizer and/or antenna tuning |
CN104040883B (zh) * | 2011-09-09 | 2016-10-19 | 奥普蒂斯蜂窝技术有限责任公司 | 多频带发射机中的单一功率放大器的线性化 |
Also Published As
Publication number | Publication date |
---|---|
WO2003081792A1 (en) | 2003-10-02 |
EP1486005B1 (en) | 2010-04-28 |
ATE466413T1 (de) | 2010-05-15 |
DE60332332D1 (de) | 2010-06-10 |
JP4261367B2 (ja) | 2009-04-30 |
AU2003216211A1 (en) | 2003-10-08 |
KR100958046B1 (ko) | 2010-05-17 |
US6983026B2 (en) | 2006-01-03 |
KR20040091764A (ko) | 2004-10-28 |
US20030179829A1 (en) | 2003-09-25 |
JP2006509378A (ja) | 2006-03-16 |
CN100373782C (zh) | 2008-03-05 |
EP1486005A1 (en) | 2004-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100373782C (zh) | 使用基带变换改进发射机性能的方法和装置 | |
CN100440729C (zh) | 利用双矩阵降低发射机峰值功率需求的方法与装置 | |
US9432228B2 (en) | Digital pre-distortion filter system and method | |
US9859845B2 (en) | Dual-band signal transmission | |
CN100417018C (zh) | 用于降低发射机峰值功率需求的方法与装置 | |
CN101569142B (zh) | 基于高线性度和低线性度模式的预失真校正环回 | |
JP4299845B2 (ja) | 送信機のピーク電力必要量を直交符号ノイズシェーピングによって低減する方法及び装置 | |
KR20130093513A (ko) | 파고율 감소 구조를 위한 장치 및 방법 | |
EP1748572A2 (en) | Apparatus and method to decrease signal amplitude peak-to-average ratio in a wireless communications system | |
Mustafa et al. | Repetitive fixed bandwidth limitation and QAM correction for EER power amplifier | |
Jan et al. | HPA nonlinearities mitigation by joint predistorter and constellation rotation using MIMO communication systems | |
CN116982256A (zh) | 用于支持在具有数字预失真和前馈线性化的发射机系统中的互调分量抑制的方法和装置 | |
Reddy | Digital pre-distortion using Legendre polynomials for band 25 transmitters | |
Helaoui et al. | DSP-based technique for power efficiency improvement in low-IF 5 GHz WLAN transmitter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MOTOROLA MOBILITY, INC. Free format text: FORMER OWNER: MOTOROLA INC. Effective date: 20110126 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20110126 Address after: Illinois Instrunment Patentee after: MOTOROLA MOBILITY, Inc. Address before: Illinois, USA Patentee before: Motorola, Inc. |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Illinois State Patentee after: MOTOROLA MOBILITY LLC Address before: Illinois State Patentee before: MOTOROLA MOBILITY, Inc. |
|
CP02 | Change in the address of a patent holder |
Address after: Illinois State Patentee after: MOTOROLA MOBILITY, Inc. Address before: Illinois Instrunment Patentee before: MOTOROLA MOBILITY, Inc. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20160612 Address after: California, USA Patentee after: Google Technology Holdings LLC Address before: Illinois State Patentee before: MOTOROLA MOBILITY LLC |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20080305 |