CN100417018C - 用于降低发射机峰值功率需求的方法与装置 - Google Patents
用于降低发射机峰值功率需求的方法与装置 Download PDFInfo
- Publication number
- CN100417018C CN100417018C CNB038062763A CN03806276A CN100417018C CN 100417018 C CN100417018 C CN 100417018C CN B038062763 A CNB038062763 A CN B038062763A CN 03806276 A CN03806276 A CN 03806276A CN 100417018 C CN100417018 C CN 100417018C
- Authority
- CN
- China
- Prior art keywords
- output signal
- ftm
- signal
- coupled
- peak
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
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 (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/101,634 | 2002-03-19 | ||
US10/101,634 US7012970B2 (en) | 2002-03-19 | 2002-03-19 | Method and apparatus for reducing transmitter peak power requirements |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1643786A CN1643786A (zh) | 2005-07-20 |
CN100417018C true CN100417018C (zh) | 2008-09-03 |
Family
ID=28040046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB038062763A Expired - Lifetime CN100417018C (zh) | 2002-03-19 | 2003-02-07 | 用于降低发射机峰值功率需求的方法与装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7012970B2 (zh) |
EP (1) | EP1486044B1 (zh) |
JP (1) | JP4377697B2 (zh) |
KR (1) | KR100938771B1 (zh) |
CN (1) | CN100417018C (zh) |
AT (1) | ATE488938T1 (zh) |
AU (1) | AU2003212982A1 (zh) |
DE (1) | DE60334976D1 (zh) |
WO (1) | WO2003081863A2 (zh) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2402308B (en) * | 2003-05-28 | 2006-01-04 | Nokia Corp | Par reduction for edge clipper |
US7542517B2 (en) * | 2004-02-02 | 2009-06-02 | Ibiquity Digital Corporation | Peak-to-average power reduction for FM OFDM transmission |
US20050201180A1 (en) * | 2004-03-05 | 2005-09-15 | Qualcomm Incorporated | System and methods for back-off and clipping control in wireless communication systems |
US7296045B2 (en) * | 2004-06-10 | 2007-11-13 | Hasan Sehitoglu | Matrix-valued methods and apparatus for signal processing |
US7313416B1 (en) * | 2004-09-01 | 2007-12-25 | Rockwell Collins, Inc. | Scalable power amplifier |
US20060098761A1 (en) * | 2004-11-10 | 2006-05-11 | Motorola, Inc. | Multi-mode transmitter |
JP4567483B2 (ja) * | 2005-02-16 | 2010-10-20 | 株式会社エヌ・ティ・ティ・ドコモ | Ofdm送信装置 |
US7496145B2 (en) * | 2005-07-28 | 2009-02-24 | Motorola, Inc. | Method and apparatus for reducing transmitter peak power requirements with orthogonal code noise shaping |
US7805117B2 (en) * | 2006-02-28 | 2010-09-28 | Motorola, Inc. | Method and apparatus for minimizing noise in a transmitter |
US20070223621A1 (en) * | 2006-03-21 | 2007-09-27 | M/A-Com, Inc. | Method and apparatus for signal power ramp-up in a communication transmission |
DE102006028690A1 (de) * | 2006-06-22 | 2008-01-03 | Siemens Ag | Verstärkereinrichtung für eine Modenantenne |
US7889810B2 (en) * | 2006-12-15 | 2011-02-15 | Pine Valley Investments, Inc. | Method and apparatus for a nonlinear feedback control system |
US7864882B2 (en) * | 2006-12-30 | 2011-01-04 | Motorola Mobility, Inc. | Method and apparatus for generating constant envelope modulation using a quadrature transmitter |
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 |
US8081710B2 (en) * | 2007-11-08 | 2011-12-20 | Pine Valley Investments, Inc. | System and method for corrected modulation with nonlinear power amplification |
US7983359B2 (en) * | 2008-02-07 | 2011-07-19 | Pine Valley Investments, Inc. | Synchronization techniques for polar transmitters |
US8233852B2 (en) * | 2008-04-04 | 2012-07-31 | Pine Valley Investments, Inc. | Calibration techniques for non-linear devices |
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 |
GB2466708B (en) * | 2008-12-31 | 2012-05-02 | Motorola Mobility Inc | Method and apparatus for antenna selection and power control in a multiple-input multiple-output wireless communication system |
US9391684B1 (en) * | 2015-09-11 | 2016-07-12 | Raytheon Company | Asymmetric power amplifier for digital beam forming |
WO2017156449A1 (en) * | 2016-03-11 | 2017-09-14 | SEAKR Engineering, Inc. | Improving power efficiency in beamforming rf systems |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783969A (en) * | 1996-09-04 | 1998-07-21 | Motorola, Inc. | Method and system for preventing an amplifier overload condition in a hybrid matrix amplifier array |
US5834972A (en) * | 1996-10-11 | 1998-11-10 | Motorola, Inc. | Method and system in a hybrid matrix amplifier for configuring a digital transformer |
US5933766A (en) * | 1996-12-16 | 1999-08-03 | Ericsson Inc. | Intermodulation compensation in multi-channel amplifiers |
Family Cites Families (8)
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 |
US5638403A (en) | 1995-04-28 | 1997-06-10 | Motorola, Inc. | Low-splatter peak-to-average signal reduction with interpolation |
US5604462A (en) | 1995-11-17 | 1997-02-18 | Lucent Technologies Inc. | Intermodulation distortion detection in a power shared amplifier network |
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 |
IL129417A0 (en) | 1998-06-17 | 2000-02-17 | Radio Frequency Systems Inc | A power sharing amplifier system for a cellular communications system |
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 |
US7065154B2 (en) * | 2000-12-29 | 2006-06-20 | Nokia Corporation | Baseband predistortion method for multicarrier transmitters |
-
2002
- 2002-03-19 US US10/101,634 patent/US7012970B2/en not_active Expired - Lifetime
-
2003
- 2003-02-07 EP EP03709026A patent/EP1486044B1/en not_active Expired - Lifetime
- 2003-02-07 KR KR1020047014647A patent/KR100938771B1/ko active IP Right Grant
- 2003-02-07 AU AU2003212982A patent/AU2003212982A1/en not_active Abandoned
- 2003-02-07 DE DE60334976T patent/DE60334976D1/de not_active Expired - Lifetime
- 2003-02-07 WO PCT/US2003/003875 patent/WO2003081863A2/en active Application Filing
- 2003-02-07 AT AT03709026T patent/ATE488938T1/de not_active IP Right Cessation
- 2003-02-07 CN CNB038062763A patent/CN100417018C/zh not_active Expired - Lifetime
- 2003-02-07 JP JP2003579434A patent/JP4377697B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783969A (en) * | 1996-09-04 | 1998-07-21 | Motorola, Inc. | Method and system for preventing an amplifier overload condition in a hybrid matrix amplifier array |
US5834972A (en) * | 1996-10-11 | 1998-11-10 | Motorola, Inc. | Method and system in a hybrid matrix amplifier for configuring a digital transformer |
US5933766A (en) * | 1996-12-16 | 1999-08-03 | Ericsson Inc. | Intermodulation compensation in multi-channel amplifiers |
Also Published As
Publication number | Publication date |
---|---|
JP4377697B2 (ja) | 2009-12-02 |
EP1486044A2 (en) | 2004-12-15 |
EP1486044B1 (en) | 2010-11-17 |
ATE488938T1 (de) | 2010-12-15 |
US7012970B2 (en) | 2006-03-14 |
DE60334976D1 (de) | 2010-12-30 |
AU2003212982A1 (en) | 2003-10-08 |
CN1643786A (zh) | 2005-07-20 |
WO2003081863A3 (en) | 2004-07-22 |
WO2003081863A2 (en) | 2003-10-02 |
AU2003212982A8 (en) | 2003-10-08 |
US20030179832A1 (en) | 2003-09-25 |
JP2006508556A (ja) | 2006-03-09 |
KR20040091760A (ko) | 2004-10-28 |
KR100938771B1 (ko) | 2010-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100440729C (zh) | 利用双矩阵降低发射机峰值功率需求的方法与装置 | |
CN100417018C (zh) | 用于降低发射机峰值功率需求的方法与装置 | |
CN100373782C (zh) | 使用基带变换改进发射机性能的方法和装置 | |
US20070121483A1 (en) | Method and system for reducing peak-to-average power for OFDM signals | |
US20060171486A1 (en) | Adaptive peak windowing for crest factor reduction in a communication system transmitter | |
CN101136890A (zh) | 一种优化的多载波信号削波装置及其方法 | |
Aggarwal et al. | Minimizing the peak-to-average power ratio of OFDM signals via convex optimization | |
CN100499626C (zh) | 解决ofdm系统中非线性失真问题的分块限幅方法 | |
CN101867549B (zh) | 基于半正定规划技术的ofdm信号峰平比抑制方法 | |
Saul | Generalized active constellation extension for peak reduction in OFDM systems | |
CN100576723C (zh) | 用于预调理电信号的方法和装置 | |
EP1469648B1 (en) | Selective mapping in a multicarrier system | |
EP3162014B1 (en) | Crest factor reduction of carrier aggregated signals | |
US6754285B1 (en) | Signal conditioning techniques in DMT-based transmissions | |
CN102404275B (zh) | 基于信号幅度分布修正的无线ofdm信号峰平比抑制方法 | |
US6721369B1 (en) | Composite BPSK/AM-BPSK based spectral suppression of out-of-band energy from saturated RF amplifier | |
CN102523191A (zh) | 基于信号统计分布函数优化的ofdm信号峰平比抑制方法 | |
Yamao et al. | Power efficiency of OFDM signal amplification with Doherty and extended Doherty transmitters | |
Ochiai | Amplifier efficiencies of OFDM systems with peak power and envelope variance reduction | |
Mustafa et al. | Repetitive fixed bandwidth limitation and QAM correction for EER power amplifier | |
CN107046515A (zh) | 一种降低无线通信系统中信号峰均功率比的方法 |
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 Instrunment 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: 20080903 |