MX2009006989A - Determinacion de un nivel de reduccion de potencia para un transmisor. - Google Patents

Determinacion de un nivel de reduccion de potencia para un transmisor.

Info

Publication number
MX2009006989A
MX2009006989A MX2009006989A MX2009006989A MX2009006989A MX 2009006989 A MX2009006989 A MX 2009006989A MX 2009006989 A MX2009006989 A MX 2009006989A MX 2009006989 A MX2009006989 A MX 2009006989A MX 2009006989 A MX2009006989 A MX 2009006989A
Authority
MX
Mexico
Prior art keywords
transmitter
modulation
power reduction
calculated
dependent data
Prior art date
Application number
MX2009006989A
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 MX2009006989A publication Critical patent/MX2009006989A/es

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)
  • Radar Systems Or Details Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Se estima un nivel de reducción de potencia para un transmisor dispuesto para transmitir señales moduladas de acuerdo con una de un número de configuraciones de modulación mediante canales de radio en un sistema de comunicación inalámbrica digital. Se proporcionan datos dependientes de modulación que comprenden un término calculado a partir de un producto de tercer orden de una señal modulada de acuerdo con una configuración de modulación, y una estimación de reducción de potencia para la transmisión de señales moduladas de acuerdo con la configuración de modulación se calcula a partir de ahí (307). Los datos dependientes de modulación se proporcionan (305) para comprender, además del termino calculado a partir de un producto de tercer orden, por lo menos un término calculado a partir de un producto de mayor orden. Además, los datos dependientes del transmisor se proporcionan (306), y la estimación se calcula a partir de los datos dependientes de modulación y dependientes del transmisor. De este modo, se logra un método más preciso para determinar una reducción de potencia, el cual también permite que diferentes condiciones de operación para el transmisor se consideren.
MX2009006989A 2006-12-27 2007-12-19 Determinacion de un nivel de reduccion de potencia para un transmisor. MX2009006989A (es)

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
MX2009006989A true MX2009006989A (es) 2009-08-13

Family

ID=37909844

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009006989A MX2009006989A (es) 2006-12-27 2007-12-19 Determinacion de un nivel de reduccion de potencia para un transmisor.

Country Status (13)

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

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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
CN106068634B (zh) * 2014-03-07 2020-03-10 Lg电子株式会社 以高阶调制方案设置下行链路功率的方法及其终端
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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IT1265271B1 (it) * 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
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US5933766A (en) * 1996-12-16 1999-08-03 Ericsson Inc. Intermodulation compensation in multi-channel amplifiers
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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
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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
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Also Published As

Publication number Publication date
WO2008077540A2 (en) 2008-07-03
US20100296605A1 (en) 2010-11-25
CN101573873A (zh) 2009-11-04
WO2008077540A3 (en) 2008-08-28
TW200845598A (en) 2008-11-16
RU2458463C2 (ru) 2012-08-10
ATE510355T1 (de) 2011-06-15
PL1940034T3 (pl) 2011-10-31
ES2366666T3 (es) 2011-10-24
EG25840A (en) 2012-09-04
EP1940034A1 (en) 2008-07-02
EP1940034B1 (en) 2011-05-18
TWI441459B (zh) 2014-06-11
RU2009128672A (ru) 2011-02-10
CN101573873B (zh) 2013-04-10
JP5138702B2 (ja) 2013-02-06
HK1131478A1 (en) 2010-01-22
US8279971B2 (en) 2012-10-02
JP2010515318A (ja) 2010-05-06

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