HK1131478A1 - Determining a level of power reduction for a transmitter - Google Patents

Determining a level of power reduction for a transmitter

Info

Publication number
HK1131478A1
HK1131478A1 HK09110979.5A HK09110979A HK1131478A1 HK 1131478 A1 HK1131478 A1 HK 1131478A1 HK 09110979 A HK09110979 A HK 09110979A HK 1131478 A1 HK1131478 A1 HK 1131478A1
Authority
HK
Hong Kong
Prior art keywords
transmitter
modulation
power reduction
calculated
dependent data
Prior art date
Application number
HK09110979.5A
Other languages
English (en)
Inventor
Lars Sundstroem
Torgny Palenius
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of HK1131478A1 publication Critical patent/HK1131478A1/xx

Links

Classifications

    • 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
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)
HK09110979.5A 2006-12-27 2009-11-24 Determining a level of power reduction for a transmitter HK1131478A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06388073A EP1940034B1 (en) 2006-12-27 2006-12-27 Determining a level of power reduction for a transmitter
US88224306P 2006-12-28 2006-12-28
PCT/EP2007/011142 WO2008077540A2 (en) 2006-12-27 2007-12-19 Determining a level of power reduction for a transmitter

Publications (1)

Publication Number Publication Date
HK1131478A1 true HK1131478A1 (en) 2010-01-22

Family

ID=37909844

Family Applications (1)

Application Number Title Priority Date Filing Date
HK09110979.5A HK1131478A1 (en) 2006-12-27 2009-11-24 Determining a level of power reduction for a transmitter

Country Status (13)

Country Link
US (1) US8279971B2 (ru)
EP (1) EP1940034B1 (ru)
JP (1) JP5138702B2 (ru)
CN (1) CN101573873B (ru)
AT (1) ATE510355T1 (ru)
EG (1) EG25840A (ru)
ES (1) ES2366666T3 (ru)
HK (1) HK1131478A1 (ru)
MX (1) MX2009006989A (ru)
PL (1) PL1940034T3 (ru)
RU (1) RU2458463C2 (ru)
TW (1) TWI441459B (ru)
WO (1) WO2008077540A2 (ru)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009357240A1 (en) * 2009-12-22 2012-07-12 Telefonaktiebolaget L M Ericsson (Publ) Determining and selecting levels of power reduction for signals to be transmitted from a mobile communications device
EP2360837B1 (en) * 2010-02-15 2013-01-02 ST-Ericsson SA Process for performing cubic metric computation in the transmitter of a UE for a wireless communication system, and apparatus for performing the same
CN101854326B (zh) * 2010-05-20 2013-02-13 清华大学 信号调制方法和信号解调方法
US8750176B2 (en) 2010-12-22 2014-06-10 Apple Inc. Methods and apparatus for the intelligent association of control symbols
US8767626B2 (en) 2011-10-20 2014-07-01 Telefonaktiebolaget L M Ericsson (Publ) Power reduction for correlated carriers in a cellular communication system
US9838226B2 (en) * 2012-01-27 2017-12-05 Apple Inc. Methods and apparatus for the intelligent scrambling of control symbols
US8990645B2 (en) 2012-01-27 2015-03-24 Apple Inc. Methods and apparatus for error rate estimation
US8897398B2 (en) 2012-01-27 2014-11-25 Apple Inc. Methods and apparatus for error rate estimation
US9253735B2 (en) 2012-10-02 2016-02-02 Qualcomm Incorporated Determining maximum power reduction (MPR) for multi-cluster wireless transmissions
US9450790B2 (en) 2013-01-31 2016-09-20 Apple Inc. Methods and apparatus for enabling and disabling scrambling of control symbols
US9210010B2 (en) 2013-03-15 2015-12-08 Apple, Inc. Methods and apparatus for scrambling symbols over multi-lane serial interfaces
US8917194B2 (en) 2013-03-15 2014-12-23 Apple, Inc. Methods and apparatus for context based line coding
EP3116185B1 (en) * 2014-03-07 2019-04-03 LG Electronics Inc. Method and corresponding terminal for setting downlink power for communication techniques using high order modulation
US10742333B2 (en) * 2017-07-13 2020-08-11 Benjamin J. Egg System and method for creation of a dynamically sharp filter

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US5265119A (en) * 1989-11-07 1993-11-23 Qualcomm Incorporated Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
IT1265271B1 (it) * 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
US6108385A (en) * 1996-07-08 2000-08-22 Silicon Wireless Limited Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems
US5933766A (en) * 1996-12-16 1999-08-03 Ericsson Inc. Intermodulation compensation in multi-channel amplifiers
US6590906B1 (en) * 1998-08-24 2003-07-08 Matsushita Electric Industrial Co., Ltd. Multi-carrier transmitter circuit and communication equipment
CN1370280A (zh) * 1999-06-09 2002-09-18 光束控制有限公司 确定发射器和接收器之间信道增益的方法
JP3334753B2 (ja) * 1999-06-15 2002-10-15 日本電気株式会社 移動端末、移動通信システム、及び移動端末の消費電力抑制方法
US6694148B1 (en) * 1999-07-26 2004-02-17 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for MCPA-equipped based stations
DE60237857D1 (de) * 2001-01-13 2010-11-18 Samsung Electronics Co Ltd Verfahren und Vorrichtung zur Leistungssteuerung für ein WCDMA Kommunikationssystem, dass ein Hochgeschwindigkeitabwärtsrichtungspaketzugriffverfahren verwendet
US6535066B1 (en) * 2001-06-21 2003-03-18 Cisco Technology, Inc. Dynamic RF amplifier bias control for digital wireless communications devices
US7924937B2 (en) * 2002-03-04 2011-04-12 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
US7123663B2 (en) * 2002-06-04 2006-10-17 Agence Spatiale Europeenne Coded digital modulation method for communication system
JP2004120271A (ja) * 2002-09-26 2004-04-15 Hitachi Kokusai Electric Inc 無線送信機
FI115935B (fi) * 2003-02-25 2005-08-15 Nokia Corp Menetelmä ja laite tehovahvistimen ominaisuuksien säätämiseksi
FI20031805A0 (fi) * 2003-12-10 2003-12-10 Nokia Corp Radiolähettimen testausmenetelmä, radiolähetin ja tukiasema
US7099399B2 (en) * 2004-01-27 2006-08-29 Crestcom, Inc. Distortion-managed digital RF communications transmitter and method therefor
JP4255849B2 (ja) * 2004-01-29 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ べき級数型ディジタルプリディストータ
EP1564897A1 (en) * 2004-02-13 2005-08-17 Thomson Licensing S.A. Control of a power amplifier for reducing power consumption in a transceiver
JP4222957B2 (ja) * 2004-03-01 2009-02-12 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 送信電力制御方法および装置
US8521204B2 (en) * 2004-09-30 2013-08-27 Motorola Mobility Llc Signal configuration based transmitter adjustment in wireless communication devices
US8995565B2 (en) * 2006-05-17 2015-03-31 Lenovo Innovations Limited (Hong Kong) Distortion control device and method

Also Published As

Publication number Publication date
JP2010515318A (ja) 2010-05-06
PL1940034T3 (pl) 2011-10-31
EP1940034A1 (en) 2008-07-02
WO2008077540A3 (en) 2008-08-28
EG25840A (en) 2012-09-04
EP1940034B1 (en) 2011-05-18
US8279971B2 (en) 2012-10-02
WO2008077540A2 (en) 2008-07-03
TWI441459B (zh) 2014-06-11
JP5138702B2 (ja) 2013-02-06
MX2009006989A (es) 2009-08-13
RU2458463C2 (ru) 2012-08-10
ES2366666T3 (es) 2011-10-24
CN101573873A (zh) 2009-11-04
ATE510355T1 (de) 2011-06-15
RU2009128672A (ru) 2011-02-10
CN101573873B (zh) 2013-04-10
TW200845598A (en) 2008-11-16
US20100296605A1 (en) 2010-11-25

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20231219