BR112017008705A2 - circuito, dispositivo de processamento de sinal digital, transceptor de ligação por rádio, método para linearizar um sinal de saída, e, programa de computador. - Google Patents

circuito, dispositivo de processamento de sinal digital, transceptor de ligação por rádio, método para linearizar um sinal de saída, e, programa de computador.

Info

Publication number
BR112017008705A2
BR112017008705A2 BR112017008705A BR112017008705A BR112017008705A2 BR 112017008705 A2 BR112017008705 A2 BR 112017008705A2 BR 112017008705 A BR112017008705 A BR 112017008705A BR 112017008705 A BR112017008705 A BR 112017008705A BR 112017008705 A2 BR112017008705 A2 BR 112017008705A2
Authority
BR
Brazil
Prior art keywords
distortion
output signal
signal
circuit
module
Prior art date
Application number
BR112017008705A
Other languages
English (en)
Inventor
Gavert Björn
Gustafsson Tony
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 BR112017008705A2 publication Critical patent/BR112017008705A2/pt

Links

Classifications

    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • 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
    • 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
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3209—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion the amplifier comprising means for compensating memory effects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3224—Predistortion being done for compensating memory effects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

esta descrição provê um circuito para linearizar um sinal de saída sout produzido por um componente não linear com base em um sinal de entrada x(n). o circuito compreende um módulo pré-distorcedor primário configurado para gerar um sinal pré-distorcido y(n) com base no sinal de entrada x(n) e em uma função de pré-distorção primária parametrizada por um parâmetro de pré-distorção ¿ e para alimentar o sinal pré-distorcido y(n) no componente não linear. o circuito compreende um módulo de estimativa. o módulo de estimativa é configurado para receber amostras z(n) do sinal de saída sout, e para determinar o parâmetro de pré-distorção ¿. o módulo de estimativa compreende um módulo pré-distorcedor secundário configurado para gerar um sinal de saída do pré-distorcedor secundário r(n) com base em uma função de pré-distorção secundária e nas amostras z(n) do sinal de saída sout. o módulo pré-distorcedor secundário é configurado para determinar o parâmetro de pré-distorção ¿ com base em um parâmetro de pré-distorção previamente determinado armazenado em um armazenamento de dados, no sinal de saída do pré-distorcedor secundário r(n) e no sinal pré-distorcido y(n) providos pelo módulo pré-distorcido primário. a determinação compreende correlacionar o sinal de entrada x(n) com um sinal de erro entre o sinal pré-distorcido y(n) e o sinal de saída do pré-distorcedor secundário r(n).
BR112017008705A 2014-11-22 2014-11-22 circuito, dispositivo de processamento de sinal digital, transceptor de ligação por rádio, método para linearizar um sinal de saída, e, programa de computador. BR112017008705A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/075345 WO2016078732A1 (en) 2014-11-22 2014-11-23 Circuits for linearizing an output signal of a non-linear component and related devices and methods

Publications (1)

Publication Number Publication Date
BR112017008705A2 true BR112017008705A2 (pt) 2018-02-27

Family

ID=51999411

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017008705A BR112017008705A2 (pt) 2014-11-22 2014-11-22 circuito, dispositivo de processamento de sinal digital, transceptor de ligação por rádio, método para linearizar um sinal de saída, e, programa de computador.

Country Status (6)

Country Link
US (1) US9712121B2 (pt)
EP (1) EP3221965B1 (pt)
BR (1) BR112017008705A2 (pt)
PL (1) PL3221965T3 (pt)
RU (1) RU2670026C1 (pt)
WO (1) WO2016078732A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10224970B2 (en) 2016-05-19 2019-03-05 Analog Devices Global Wideband digital predistortion
US10033413B2 (en) * 2016-05-19 2018-07-24 Analog Devices Global Mixed-mode digital predistortion
CN107565967B (zh) * 2017-09-25 2021-01-01 上海交通大学 基于周期信号混频的信号处理与采样方法
US11211902B2 (en) 2017-12-14 2021-12-28 Telefonaktiebolaget Lm Ericsson (Publ) Linearization of non-linear amplifiers
US20230216451A1 (en) * 2020-06-08 2023-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Linearization of a non-linear electronic device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6711391B1 (en) * 2000-10-10 2004-03-23 Qualcomm, Incorporated Gain linearizer for variable gain amplifiers
CA2560281A1 (en) 2004-03-25 2005-10-13 Optichron, Inc. Model based distortion reduction for power amplifiers
CA2576778C (en) * 2006-02-07 2014-09-02 Xinping Huang Self-calibrating multi-port circuit and method
US9093958B2 (en) 2011-10-20 2015-07-28 Mediatek Singapore Pte. Ltd. Predistortion circuit, wireless communication unit and method for coefficient estimation
US9014299B2 (en) 2012-12-07 2015-04-21 Maxim Integrated Products, Inc. Digital pre-distortion system for radio frequency transmitters with reduced sampling rate in observation loop
US9680423B2 (en) 2013-03-13 2017-06-13 Analog Devices Global Under-sampling digital pre-distortion architecture

Also Published As

Publication number Publication date
WO2016078732A1 (en) 2016-05-26
EP3221965A1 (en) 2017-09-27
RU2670026C1 (ru) 2018-10-17
PL3221965T3 (pl) 2019-04-30
US20160352290A1 (en) 2016-12-01
WO2016078732A8 (en) 2016-07-14
US9712121B2 (en) 2017-07-18
EP3221965B1 (en) 2018-10-10

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Legal Events

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements