SG114693A1 - Method and apparatus for optimizing transmitter power efficiency - Google Patents

Method and apparatus for optimizing transmitter power efficiency

Info

Publication number
SG114693A1
SG114693A1 SG200500596A SG200500596A SG114693A1 SG 114693 A1 SG114693 A1 SG 114693A1 SG 200500596 A SG200500596 A SG 200500596A SG 200500596 A SG200500596 A SG 200500596A SG 114693 A1 SG114693 A1 SG 114693A1
Authority
SG
Singapore
Prior art keywords
transmitter
signal
adjustment value
adjustment
power efficiency
Prior art date
Application number
SG200500596A
Other languages
English (en)
Inventor
Jin Xin
Jiao Qingzhong
Chan Wen
Original Assignee
Research In Motion Ltd
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
Application filed by Research In Motion Ltd filed Critical Research In Motion Ltd
Publication of SG114693A1 publication Critical patent/SG114693A1/en

Links

Classifications

    • 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
    • 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
    • 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
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • 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
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/66—Clipping circuitry being present in an amplifier, i.e. the shape of the signal being modified
    • 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
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Optical Communication System (AREA)
SG200500596A 2004-02-27 2005-01-20 Method and apparatus for optimizing transmitter power efficiency SG114693A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04251148A EP1569359B1 (en) 2004-02-27 2004-02-27 Method and apparatus for optimizing transmitter power efficiency

Publications (1)

Publication Number Publication Date
SG114693A1 true SG114693A1 (en) 2005-09-28

Family

ID=34746117

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200500596A SG114693A1 (en) 2004-02-27 2005-01-20 Method and apparatus for optimizing transmitter power efficiency

Country Status (9)

Country Link
EP (1) EP1569359B1 (ko)
JP (1) JP4204566B2 (ko)
KR (1) KR100669967B1 (ko)
CN (1) CN100456641C (ko)
AT (1) ATE362235T1 (ko)
CA (1) CA2495010C (ko)
DE (1) DE602004006370T2 (ko)
HK (1) HK1081343A1 (ko)
SG (1) SG114693A1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8428181B2 (en) 2002-12-02 2013-04-23 Research In Motion Limited Method and apparatus for optimizing transmitter power efficiency
US7333563B2 (en) 2004-02-20 2008-02-19 Research In Motion Limited Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
US20070177654A1 (en) * 2006-01-31 2007-08-02 Vladimir Levitine Detecting signal carriers of multiple types of signals in radio frequency input for amplification
BRPI0702890B1 (pt) 2006-06-14 2018-12-04 Blackberry Ltd transmissor para um dispositivo de comunicação sem fio e método de fornecer um sinal de voltagem de suprimento
US8761305B2 (en) 2006-06-14 2014-06-24 Blackberry Limited Input drive control for switcher regulated power amplifier modules
CA2616323C (en) 2006-06-14 2011-08-02 Research In Motion Limited Input drive control for switcher regulated power amplifier modules
US8275331B2 (en) * 2009-04-21 2012-09-25 Qualcomm, Incorporated PA gain state switching based on waveform linearity
US8620238B2 (en) 2010-07-23 2013-12-31 Blackberry Limited Method of power amplifier switching power control using post power amplifier power detection
GB2498392B (en) * 2012-01-16 2016-01-13 Nujira Ltd Crest factor reduction applied to shaping table to increase power amplifier efficency of envelope tracking amplifier
US11223376B2 (en) * 2017-02-27 2022-01-11 Apple Inc. Frequency dependent envelope tracking
CN117459005A (zh) * 2023-11-08 2024-01-26 成都航空职业技术学院 一种基于高功率信号线性度的自适应负前馈控制电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6178313B1 (en) * 1998-12-31 2001-01-23 Nokia Mobile Phones Limited Control of gain and power consumption in a power amplifier
AU2002213966A1 (en) * 2000-10-18 2002-04-29 Telefonaktiebolaget Lm Ericsson (Publ) Communications systems
US6801784B1 (en) * 2000-11-02 2004-10-05 Skyworks Solutions, Inc. Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier
US6535066B1 (en) * 2001-06-21 2003-03-18 Cisco Technology, Inc. Dynamic RF amplifier bias control for digital wireless communications devices

Also Published As

Publication number Publication date
EP1569359B1 (en) 2007-05-09
KR20060042244A (ko) 2006-05-12
CA2495010C (en) 2009-06-09
DE602004006370D1 (de) 2007-06-21
CA2495010A1 (en) 2005-08-27
JP2005244996A (ja) 2005-09-08
JP4204566B2 (ja) 2009-01-07
HK1081343A1 (en) 2006-05-12
DE602004006370T2 (de) 2008-01-10
ATE362235T1 (de) 2007-06-15
KR100669967B1 (ko) 2007-01-19
EP1569359A1 (en) 2005-08-31
CN100456641C (zh) 2009-01-28
CN1661927A (zh) 2005-08-31

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