JP2010525758A - デジタルハイブリッドモード電力増幅器システム - Google Patents
デジタルハイブリッドモード電力増幅器システム Download PDFInfo
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- 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
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- 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
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- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/57—Separate feedback of real and complex signals being present
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- 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
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- 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
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- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
- H04B1/0014—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
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- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0039—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
Description
本願は、2008年1月28日出願の「Power Amplifier Time-Delay Invariant Predistortion Methods and Apparatus」という名称の米国特許出願第12/021,241号の一部継続出願である。この米国特許出願第12/021,241号は、2007年4月30日出願の「High Efficiency Linearization Power Amplifier For Wireless Communication」という名称の米国特許出願第11/799,239号の一部継続出願である。この米国特許出願第11/799,239号は、2005年10月27日出願の「System and Method for Digital Memorized Predistortion for Wireless Communication」という名称の米国特許出願第10/137,556号であって現在は「System and Method for Digital Memorized Predistortion for Wireless Communication」という名称の米国特許第6,985,704号の継続出願である。これらのすべては本明細書に参照として組み込まれる。本願は、2007年12月20日出願の「A Method for Baseband Predistortion Linearization in Multi-Channel Wideband Communication Systems」という名称の米国特許出願第11/961,969号の利益を主張する。本願は、Dali Yangを除いて発明者が本件と同じである2007年4月23日出願の米国仮特許出願第60/925,603号の利益を主張し、2008年3月31日出願の「An Efficient Peak Cancellation Method For Reducing The Peak-To-Average Power Ratio In Wideband Communication Systems」という名称の米国仮特許出願第61/041,164号の利益も主張する。また、2007年12月8日出願の「Baseband Derived RF Digital Predistortion」という名称の米国仮特許出願第61/012,416号の利益も主張し、2007年4月23日出願の「N-Way Doherty Distributed Power Amplifier」という名称の米国仮特許出願第60/925,577号の利益も主張する。さらに、本願は、2007年12月20日出願の「Power Amplifier Predistortion Methods and Apparatus」という名称の米国特許出願第11/962,025号、2007年8月30日出願の「Analog Power Amplifier Predistortion Methods and Apparaturs」という名称の米国仮特許出願第60/969,127号、及び「Power Amplifier Predistortion Methods and Apparatus Using Envelope and Phase Detector」という名称の米国仮特許出願第60/969,131号の利益を主張する。上述のすべては、本明細書に参照として組み込まれる。
用語集
ACLR 隣接チャンネル漏洩比(Adjacent Channel Leakage Ratio)
ACPR 隣接チャンネル電力比(Adjacent Channel Power Ratio)
ADC アナログデジタルコンバータ(Analog to Digital Converter)
AQDM アナログ直交復調器(Analog Quadrature Demodulator)
AQM アナログ直交変調器(Analog Quadrature Modulator)
AQDMC アナログ直交復調器コレクタ(Analog Quadrature Demodulator Corrector)
AQMC アナログ直交変調器コレクタ(Analog Quadrature Modulator Corrector)
BPF バンドパスフィルタ(Bandpass Filter)
CDMA 符号分割多重アクセス(Code Division Multiple Access)
CFR 波高因子低減(Crest Factor Reduction)
DAC デジタルアナログコンバータ(Digital to Analog Converter)
DET 検出器(Detector)
DHMPA デジタルハイブリッドモード電力増幅器(Digital Hybrid Mode Power Amplifier)
DDC デジタルダウンコンバータ(Digital Down Converter)
DNC ダウンコンバータ(Down Converter)
DPA ドハティ電力増幅器(Doherty Power Amplifier)
DQDM デジタル直交復調器(Digital Quadrature Demodulator)
DQM デジタル直交変調器(Digital Quadrature Modulator)
DSP デジタル信号処理(Digital Signal Processing)
DUC デジタルアップコンバータ(Digital Up Converter)
EER エンベロープエリミネーション及びレストレーション(Envelope Elimination and Restoration)
EF エンベロープフォローイング(Envelope Following)
ET エンベロープトラッキング(Envelope Tracking)
EVM 誤差ベクトル振幅(Error Vector Magnitude)
FFLPA フィードフォワード線形電力増幅器(Feedforward Linear Power Amplifier)
FIR 有限インパルス応答(Finite Impulse Response)
FPGA フィールドプログラマブルゲートアレイ(Field-Programmable Gate Array)
GSM 移動体通信用グローバルシステム(Global System for Mobile communications)
I−Q 同相/直交(In-phase/Quadrature)
IF 中間周波数(Intermediate Frequency)
LINC 非線形コンポーネント使用線形増幅(Linear Amplification using Nonlinear Components)
LO 局所発振器(Local Oscillator)
LPF ローパスフィルタ(Low Pass Filter)
MCPA マルチキャリア電力増幅器(Multi-Carrier Power Amplifier)
MDS 多方向性サーチ(Multi-Directional Search)
OFDM 直交周波数分割多重(Orthogonal Frequency Division Multiplexing)
PA 電力増幅器(Power Amplifier)
PAPR ピーク対平均電力比(Peak-to-Average Power Ratio)
PD デジタルベースバンドプリディストーション(Digital Baseband Predistortion)
PLL 位相ロックループ(Phase Locked Loop)
QAM 直交振幅変調(Quadrature Amplitude Modulation)
QPSK 直交位相シフトキーイング(Quadrature Phase Shift Keying)
RF 高周波数(Radio Frequency)
SAW 表面弾性波フィルタ(Surface Acoustic Wave Filter)
UMTS ユニバーサル移動体通信システム(Universal Mobile Telecommunications System)
UPC アップコンバータ(Up Converter)
WCDMA 広帯域符号分割多重アクセス(Wideband Code Division Multiple Access)
WLAN 無線ローカルエリアネットワーク(Wireless Local Area Network)
Claims (11)
- 少なくとも一つのRFかつマルチチャンネルのデジタル入力を受信するデジタルモジュールと、
前記デジタルモジュールの出力を表す信号に応答する電力増幅器部分と、
前記電力増幅器部分の出力を表す信号を前記デジタルモジュールにフィードバックするフィードバック部分と
を含むデジタルハイブリッドモード電力増幅器システム。 - 前記デジタルモジュールは、デジタルフィールドプログラマブルゲートアレイと、デジタルアナログコンバータと、アナログデジタルコンバータと、位相ロックループとの一つ以上を含む、請求項1に記載のデジタルハイブリッドモード電力増幅器システム。
- 前記電力増幅器部分は、実信号のためのアップコンバータ並びに実信号及び複素信号のためのアナログ直交変調器と、多段駆動増幅器を備える高電力増幅器と、温度センサとの一つ以上を含む、請求項1に記載のデジタルハイブリッドモード電力増幅器システム。
- 前記フィードバック部分は、方向性カプラと、ミキサと、ローパスフィルタと、ゲイン増幅器と、バンドパスフィルタと、検出器との少なくとも一つを含む、請求項1に記載のデジタルハイブリッドモード電力増幅器システム。
- 基地局アプリケーションのために構成され、
前記デジタルフィールドプログラマブルゲートアレイは、デジタルアップコンバータと、波高因子低減器と、プリディストータと、デジタル直交変調器との一つ以上を含む、請求項2に記載のデジタルハイブリッドモード電力増幅器システム。 - リピータアプリケーションのために構成され、
前記デジタルフィールドプログラマブルゲートアレイは、デジタル直交復調器と、波高因子低減器と、プリディストータと、デジタル直交変調器との一つ以上を含む、請求項2に記載のデジタルハイブリッドモード電力増幅器システム。 - 前記デジタルフィールドプログラマブルゲートアレイは、前記電力増幅器の非対称ひずみを生成することにより前記電力増幅器部分の非線形性及びメモリ効果の双方をアダプティブに補償するプリディストーションを与える、請求項2に記載のデジタルハイブリッドモード電力増幅器システム。
- 前記デジタルフィールドプログラマブルゲートアレイは、前記電力増幅器の温度変化に起因する線形性変動を安定化させるべく前記電力増幅器の最適ゲートバイアス電圧を決定する適応アルゴリズムを含む、請求項2に記載のデジタルハイブリッドモード電力増幅器システム。
- 前記電力増幅器部分は、前記DHMAシステムの効率を最大にするべく、ドハティと、エンベロープエリミネーション及びレストレーションと、エンベロープトラッキングと、エンベロープフォローイングと、非線形コンポーネント使用線形増幅とを含む効率ブースト手法のグループのうちの少なくとも一つを用いる、請求項3に記載の電力増幅器システム。
- 波高因子低減によって前記電力増幅器部分の出力においてクリッピングされた信号から生じた帯域内ひずみが、前記デジタル部分に応答するDAC及びUPCにより補償される、請求項1に記載の電力増幅器システム。
- 隣接チャンネル電力を検出するべくメインチャンネル信号のロケーションをサーチすることと、
評価関数として隣接チャンネル電力値又は隣接チャンネル電力比を使用することによる評価、回転、伸張、及び収縮を含む多方向性サーチアルゴリズムに基づいて係数を抽出することと
を含む、本発明のDHMPAシステムにおいてプリディストーションの係数を更新する方法。
Applications Claiming Priority (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US92560307P | 2007-04-23 | 2007-04-23 | |
US92557707P | 2007-04-23 | 2007-04-23 | |
US60/925,577 | 2007-04-23 | ||
US60/925,603 | 2007-04-23 | ||
US11/799,239 US8064850B2 (en) | 2002-05-01 | 2007-04-30 | High efficiency linearization power amplifier for wireless communication |
US11/799,239 | 2007-04-30 | ||
US96912707P | 2007-08-30 | 2007-08-30 | |
US96913107P | 2007-08-30 | 2007-08-30 | |
US60/969,131 | 2007-08-30 | ||
US60/969,127 | 2007-08-30 | ||
US1241607P | 2007-12-07 | 2007-12-07 | |
US61/012,416 | 2007-12-07 | ||
US11/962,025 US8472897B1 (en) | 2006-12-22 | 2007-12-20 | Power amplifier predistortion methods and apparatus |
US11/962,025 | 2007-12-20 | ||
US11/961,969 US8149950B2 (en) | 2006-12-26 | 2007-12-20 | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
US11/961,969 | 2007-12-20 | ||
US12/021,241 US8380143B2 (en) | 2002-05-01 | 2008-01-28 | Power amplifier time-delay invariant predistortion methods and apparatus |
US12/021,241 | 2008-01-28 | ||
US4116408P | 2008-03-31 | 2008-03-31 | |
US61/041,164 | 2008-03-31 | ||
PCT/US2008/061355 WO2008154077A1 (en) | 2007-04-23 | 2008-04-23 | Digital hybrid mode power amplifier system |
Publications (2)
Publication Number | Publication Date |
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JP2010525758A true JP2010525758A (ja) | 2010-07-22 |
JP5591106B2 JP5591106B2 (ja) | 2014-09-17 |
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JP2010506483A Active JP5591106B2 (ja) | 2007-04-23 | 2008-04-23 | デジタルハイブリッドモード電力増幅器システム |
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Country | Link |
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EP (1) | EP2143209B1 (ja) |
JP (1) | JP5591106B2 (ja) |
KR (1) | KR101503548B1 (ja) |
CN (1) | CN101720528B (ja) |
WO (1) | WO2008154077A1 (ja) |
Cited By (7)
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JP2013515423A (ja) * | 2009-12-21 | 2013-05-02 | ダリ システムズ カンパニー リミテッド | 変調アグノスティック(agnostic)デジタルハイブリッドモード電力増幅器のシステム及び方法 |
JP2013533713A (ja) * | 2010-08-12 | 2013-08-22 | ローデ ウント シュワルツ ゲーエムベーハー ウント コー カーゲー | ドハティ拡張を有する高周波電力増幅器 |
US9768739B2 (en) | 2008-03-31 | 2017-09-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
WO2019234925A1 (ja) * | 2018-06-08 | 2019-12-12 | 三菱電機株式会社 | 歪み補償回路及び無線送信機 |
US11129076B2 (en) | 2006-12-26 | 2021-09-21 | Dali Wireless, Inc. | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
US11159129B2 (en) | 2002-05-01 | 2021-10-26 | Dali Wireless, Inc. | Power amplifier time-delay invariant predistortion methods and apparatus |
US20220295487A1 (en) | 2010-09-14 | 2022-09-15 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
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US9026067B2 (en) | 2007-04-23 | 2015-05-05 | Dali Systems Co. Ltd. | Remotely reconfigurable power amplifier system and method |
JP2012525093A (ja) * | 2009-04-24 | 2012-10-18 | ダリ システムズ カンパニー リミテッド | 遠隔で再構成可能な電力増幅器システムおよび方法 |
EP2333968B1 (en) * | 2009-12-09 | 2012-02-08 | Alcatel Lucent | Transmitter arrangement for fragmented spectrum RF signals |
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US8351877B2 (en) | 2010-12-21 | 2013-01-08 | Dali Systems Co. Ltfd. | Multi-band wideband power amplifier digital predistorition system and method |
US8542768B2 (en) | 2009-12-21 | 2013-09-24 | Dali Systems Co. Ltd. | High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
EP2606435A4 (en) * | 2010-08-17 | 2017-05-10 | Dali Systems Co. Ltd. | Neutral host architecture for a distributed antenna system |
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US9674788B2 (en) | 2015-06-26 | 2017-06-06 | Intel IP Corporation | Devices and methods for transmit concurrency by conditioned signal combining |
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WO2008154077A1 (en) | 2008-12-18 |
KR101503548B1 (ko) | 2015-03-24 |
EP2143209A1 (en) | 2010-01-13 |
CN101720528B (zh) | 2014-03-19 |
EP2143209B1 (en) | 2018-08-15 |
CN101720528A (zh) | 2010-06-02 |
KR20100017270A (ko) | 2010-02-16 |
EP2143209A4 (en) | 2014-05-07 |
JP5591106B2 (ja) | 2014-09-17 |
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