MXPA05008215A - Metodo y aparato para el control automatico de ganancia de una senal multiportador y un receptor de comunicacion. - Google Patents

Metodo y aparato para el control automatico de ganancia de una senal multiportador y un receptor de comunicacion.

Info

Publication number
MXPA05008215A
MXPA05008215A MXPA05008215A MXPA05008215A MXPA05008215A MX PA05008215 A MXPA05008215 A MX PA05008215A MX PA05008215 A MXPA05008215 A MX PA05008215A MX PA05008215 A MXPA05008215 A MX PA05008215A MX PA05008215 A MXPA05008215 A MX PA05008215A
Authority
MX
Mexico
Prior art keywords
bits
carrier signal
outer loop
agc
gain control
Prior art date
Application number
MXPA05008215A
Other languages
English (en)
Inventor
Sudhakar Salvi Rohan
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of MXPA05008215A publication Critical patent/MXPA05008215A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/08—Amplitude regulation arrangements
    • 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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3078—Circuits generating control signals for digitally modulated signals
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/28—Systems using multi-frequency codes with simultaneous transmission of different frequencies each representing one code element
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Un receptor opera para el AGC de una senal portadora multiple a traves de un numero correspondiente de circuitos internos y un proceso AGC de circuito externo. Un primer numero de bits para representar la senal portadora multiple con una cantidad limitada de interferencia es determinada a traves de un proceso de modo de calibracion. El primer numero de bits proporciona la cuantizacion de la senal portadora multiple en un AGC de circuito externo a un nivel maximo de cuantizacion. Despues de que la estimacion senal de potencia es recibida umbral esta "ENCENDIDA" predeterminado, el AGC de circuito abierto opera a un segundo numero de bits mayor que el primer numero de bits para permitir una cuantizacion de la posible interferencia de acuerdo con una diferencia del primer y segundo numero de bits. El AGC del circuito externo cambia nuevamente al uso del primer numero de bits cuando la estimacion de la potencia de la senal recibida cae por debajo de un umbral "APAGADO" predeterminado.
MXPA05008215A 2003-02-01 2004-02-02 Metodo y aparato para el control automatico de ganancia de una senal multiportador y un receptor de comunicacion. MXPA05008215A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US44428303P 2003-02-01 2003-02-01
US10/437,203 US7995684B2 (en) 2003-02-01 2003-05-12 Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver
PCT/US2004/002927 WO2004071005A1 (en) 2003-02-01 2004-02-02 Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver

Publications (1)

Publication Number Publication Date
MXPA05008215A true MXPA05008215A (es) 2005-11-04

Family

ID=32775969

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05008215A MXPA05008215A (es) 2003-02-01 2004-02-02 Metodo y aparato para el control automatico de ganancia de una senal multiportador y un receptor de comunicacion.

Country Status (11)

Country Link
US (1) US7995684B2 (es)
EP (1) EP1588517B1 (es)
JP (1) JP4643557B2 (es)
KR (1) KR101040548B1 (es)
CN (1) CN1757194B (es)
AT (1) ATE368978T1 (es)
BR (1) BRPI0407127A (es)
CA (1) CA2514884A1 (es)
DE (1) DE602004007887T2 (es)
MX (1) MXPA05008215A (es)
WO (1) WO2004071005A1 (es)

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US8824979B2 (en) * 2007-09-21 2014-09-02 Qualcomm Incorporated Interference management employing fractional frequency reuse
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Also Published As

Publication number Publication date
US7995684B2 (en) 2011-08-09
ATE368978T1 (de) 2007-08-15
EP1588517B1 (en) 2007-08-01
CA2514884A1 (en) 2004-08-19
DE602004007887T2 (de) 2008-04-17
KR101040548B1 (ko) 2011-06-16
CN1757194A (zh) 2006-04-05
EP1588517A1 (en) 2005-10-26
KR20050096967A (ko) 2005-10-06
WO2004071005A1 (en) 2004-08-19
DE602004007887D1 (de) 2007-09-13
US20040151264A1 (en) 2004-08-05
CN1757194B (zh) 2010-09-29
BRPI0407127A (pt) 2006-01-10
JP2006517770A (ja) 2006-07-27
JP4643557B2 (ja) 2011-03-02

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