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1. WO2014160841 - POWER AMPLIFIER SIGNAL COMPENSATION

Publication Number WO/2014/160841
Publication Date 02.10.2014
International Application No. PCT/US2014/031979
International Filing Date 27.03.2014
IPC
H03F 1/32 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
H03F 3/195 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189High-frequency amplifiers, e.g. radio frequency amplifiers
19with semiconductor devices only
195in integrated circuits
H03F 3/24 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
24of transmitter output stages
H03F 1/30 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
30Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
H04L 27/36 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18, or H04L27/26213
34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
36Modulator circuits; Transmitter circuits
CPC
H03F 1/30
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
30Modifications of amplifiers to reduce influence of variations of temperature or supply voltage ; or other physical parameters
H03F 1/3241
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
3241using predistortion circuits
H03F 1/3247
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
3241using predistortion circuits
3247using feedback acting on predistortion circuits
H03F 2200/111
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
111the amplifier being a dual or triple band amplifier, e.g. 900 and 1800 MHz, e.g. switched or not switched, simultaneously or not
H03F 2200/336
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
336A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
H03F 2200/447
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
447the amplifier being protected to temperature influence
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • LIU, Qijia
  • GENG, Jifeng
  • FILIPOVIC, Daniel Fred
  • GAO, Li
Agents
  • GELFOUND, Craig A.
Priority Data
14/154,02213.01.2014US
61/805,84527.03.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POWER AMPLIFIER SIGNAL COMPENSATION
(FR) COMPENSATION DE SIGNAL D'AMPLIFICATEUR DE PUISSANCE
Abstract
(EN)
Exemplary embodiments are related to power amplifier power level compensation in a pre-distortion system. A method may include applying digital pre-distortion (DPD) of a power amplifier at a frequency channel, a fixed input power value, and a fixed temperature. The method may also include determining an optimal input power value for the power amplifier in response to a change in at least one of frequency and temperature.
(FR)
Selon des modes de réalisation donnés à titre d'exemple, la présente invention concerne une compensation de niveau de puissance d'amplificateur de puissance dans un système de pré-distorsion. Un procédé peut consister à appliquer une pré-distorsion numérique (DPD) d'un amplificateur de puissance à un canal de fréquence, une valeur de puissance d'entrée fixe, et une température fixe. Le procédé peut également consister à déterminer une valeur de puissance d'entrée optimale pour l'amplificateur de puissance en réponse à une modification dans au moins l'une de la fréquence et de la température.
Also published as
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