WO2009009987A1 - Procédé et dispositif pour suivre un service d'amplification de puissance doherty - Google Patents

Procédé et dispositif pour suivre un service d'amplification de puissance doherty Download PDF

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Publication number
WO2009009987A1
WO2009009987A1 PCT/CN2008/071527 CN2008071527W WO2009009987A1 WO 2009009987 A1 WO2009009987 A1 WO 2009009987A1 CN 2008071527 W CN2008071527 W CN 2008071527W WO 2009009987 A1 WO2009009987 A1 WO 2009009987A1
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WO
WIPO (PCT)
Prior art keywords
power amplifier
doherty
doherty power
output power
gate voltage
Prior art date
Application number
PCT/CN2008/071527
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English (en)
Chinese (zh)
Inventor
Jie Sun
Jianfeng Wu
Yongge Su
An Huang
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009009987A1 publication Critical patent/WO2009009987A1/fr

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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
    • H03F1/02—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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for implementing a Doherty power amplifier service tracking function.
  • a radio frequency power amplifier in a base station device is a core unit of a transceiver unit
  • power amplifier An important indicator of RF power amplifiers is power amplifier efficiency. Power amplifier efficiency is also a major consideration for 3G base stations and terminal equipment.
  • the efficiency of conventional power amplifiers increases with increasing power.
  • the efficiency of the base station equipment is also the efficiency of the base station's maximum transmit power.
  • the transmit power of the base station equipment is dynamically changed. In the case of small power transmission, the efficiency of the power amplifier actually does not reach the efficiency of the maximum transmit power of the base station, resulting in waste of power of the base station.
  • Doherty power amplifier is a power amplifier efficiency enhancement technology.
  • the basic idea is active load traction. It consists of two parts, one is the carrier power amplifier (11), and the other is the peak power amplifier (12), which bears different input signal powers. It is guaranteed that both amplifiers work in their respective saturation zones, thus ensuring that the entire power is maintained at a high efficiency in the range of the input signal power as large as possible, while ensuring a certain linearity.
  • Doherty amplifiers can be divided into one-level, or multi-level Doherty amplifiers.
  • the Tracking function adjusts the drain voltage (Vdd) of the power amplifier according to the size of the traffic (ie, the output power of the power amplifier) to improve the efficiency of the power amplifier. For example, during the daytime, the business volume is large (output power is large), Vdd is increased, night traffic is small (output power is small), and Vdd is lowered. This can save operators' operating costs to a certain extent.
  • Traffic is implemented by adjusting Vdd Tracking function is more practical for Class AB and Class 1 Doherty power amplifiers.
  • Vdd Tracking function is more practical for Class AB and Class 1 Doherty power amplifiers.
  • the peak power of multi-level doherty may not reach the optimal working state in the low power zone. If Vdd is reduced too much, the carrier power amplifier will be supersaturated, which may cause the linearity of the Doherty power amplifier to deteriorate seriously.
  • the Vdd reduction is limited, the efficiency is limited.
  • the main technical problem to be solved by the embodiments of the present invention is to provide a method and a device for implementing the Doherty power amplifier service tracking function, thereby ensuring that a single-stage or multi-stage Doherty power amplifier achieves a higher power amplifier efficiency under different output powers. Linearity is guaranteed.
  • the embodiment of the invention provides a method for implementing the Doherty power amplifier service tracking function, and adjusts the drain voltage of the Doherty power amplifier and the gate voltage of the peak power amplifier in the Doherty power amplifier according to the change information of the output power of the Doherty power amplifier.
  • the embodiment of the present invention further provides an apparatus for implementing a Doherty power amplifier service tracking function, including an output power change obtaining module and an adjusting module, where:
  • An output power change information obtaining module configured to acquire change information of the output power of the Doherty power amplifier, and send the information to the adjustment module;
  • the adjustment module is configured to obtain information obtained by the module according to the output power change, adjust the drain voltage of the Doherty power amplifier, and the gate voltage of the peak power amplifier in the Doherty power amplifier.
  • the embodiment of the present invention further provides a Doherty power amplifier capable of implementing a service tracking function, where the Doherty power amplifier includes an output power change information acquiring module and an adjusting module, where:
  • An output power change information obtaining module configured to acquire change information of the output power of the Doherty power amplifier, and send the information to the adjustment module;
  • the adjustment module is configured to adjust the drain voltage of the Doherty power amplifier and the gate voltage of the peak power amplifier in the Doherty power amplifier according to the information obtained by the output power change information acquisition module.
  • the drain voltage of the Doherty power amplifier and the gate voltage of the peak power amplifier in the Doherty power amplifier are adjusted according to the change information of the output power of the Dohert y power amplifier, thereby It ensures that the single-stage or multi-stage Doherty power amplifiers achieve higher power amplifier efficiency at different output powers, ensuring linearity.
  • FIG. 1 is a schematic structural diagram of a first-stage Doherty power amplifier in the prior art
  • FIG. 2 is a schematic diagram of a two-stage Doherty power amplifier structure according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for implementing a Doherty power amplifier service tracking function according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic diagram of a correspondence table according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for implementing a Doherty power amplifier service tracking function according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a Doherty power amplifier capable of implementing a service tracking function according to Embodiment 3 of the present invention.
  • Embodiment 1 of the present invention provides a Doherty power amplifier service tracking (Traffic)
  • the tracking function method can adjust VDD and VGS according to the correspondence between Pout, VDD and VGS.
  • the correspondence between VDD and VGS can be described by making a table. Further, in the embodiment of the present invention, the adjustment for VDD and VGS can be implemented by digital offset, or can be implemented by other means.
  • the method of the Tracking function can be applied to a single-stage or multi-stage Doherty power amplifier.
  • the following describes the invention by using a two-stage Doh erty power amplifier as an example.
  • the Doherty power amplifier as shown in FIG. 2, includes two carrier power amplifiers (21, 22) and two peak power amplifiers (23, 24).
  • the specific flow of the Doherty power amplifier to implement the present invention is as shown in FIG. 3, and may include the following Steps:
  • Step 1 Obtain Pout change information.
  • the most important feature of Tracking technology is that it can change the size of the traffic and perform corresponding technical parameters. Number adjustment.
  • the change information of the Pout value is also obtained first. Further, the embodiment of the present invention can obtain the change information of the Pout value by using any acquisition technology and means, for example, using a detector.
  • Step 2. Adjust VDD, and VGS1 and VGS2 according to Pout change information.
  • the corresponding value in the process of adjusting VDD, and VGS1 and VGS2 according to the Pout change information, the corresponding value may be obtained by querying the correspondence table between the parameters, and then according to the acquired Value, adjust VDD, VGSl and VGS2 accordingly.
  • the correspondence table holds the correspondence between Pout, V DD, VGSl and VGS2, that is, the Doherty power is placed under different power conditions to achieve the best power amplifier effect, and the values of the various parameters can be obtained through multiple experiments. And make a table record save, as shown in Figure 4, for ease of use.
  • any acquisition technology and means may be used, such as acquisition by software, or acquisition by hardware.
  • the digital offset can be used to adjust the VDD, and VGS1 and VGS2, or Use the adjustment circuit, or other methods to adjust the above parameters.
  • the adjustment process for VDD, and VGS1 and VGS2 can be:
  • the purpose of the above process is to improve the efficiency of the Doherty power amplifier by lowering the VDD when Pout is reduced. Similarly, increase the gate voltages VGS1 and VGS2 of the peak power amplifiers ( 23 , 24), avoiding the possibility of lowering VDD.
  • the resulting peak power amplifier (23, 24) in the Doherty amplifier has a sharp linear deterioration; when Pout is increased, the VDD guarantees the linearity of the peak power amplifier (23, 24), and the gate voltage VGS1 of the peak power amplifier (23, 24) is lowered. And VGS2 to ensure the efficiency of the Doherty amplifier.
  • the Tracking function method can adjust the VDD of the Doherty amplifier according to the change information of Pout, and adjust the VGS of the peak power amplifier in the Doherty power amplifier, thereby ensuring that the single-stage or multi-stage Doherty power amplifier achieves higher efficiency under different output powers. At the same time, linearity is guaranteed.
  • Embodiment 2 of the present invention provides an apparatus for implementing a Doherty power amplifier service tracking function.
  • the apparatus includes an output power change acquisition module, an adjustment module, and a corresponding relationship preservation module, where:
  • the output power change information acquisition module is configured to obtain change information of the Doherty power amplifier output power (Pout), and send the information to the adjustment module.
  • the device provided by the embodiment of the present invention may use a detector to obtain Pout change information.
  • the adjustment module is configured to adjust the drain voltage (VDD) of the Doherty amplifier and the gate voltage (VGS) of the peak power amplifier in the Doherty power amplifier according to the information obtained by the output power change information acquisition module.
  • the specific operation process of the adjustment module can be:
  • the adjustment module can save the module by querying the correspondence relationship, thereby obtaining the correspondence between Pout, VDD and V GS, that is, the corresponding values between Pout, VDD and VGS;
  • the adjustment module can adjust the VDD and VGS by digital offset, or adjust by other means.
  • the specific operation process of the adjustment module may be:
  • the purpose of the above process is to improve the Doherty power amplifier efficiency by lowering VDD when Pout is reduced, and to improve the gate voltage VGS of the peak power amplifier, avoiding the peak power amplifier in the Doherty power amplifier caused by lowering VDD.
  • the linearity deteriorates sharply; when Pout increases, the VDD guarantees the linearity of the peak power amplifier, and the gate voltage VGS of the peak power amplifier is lowered to ensure the efficiency of the Doherty power amplifier.
  • a correspondence relationship saving module configured to save a correspondence between the output power, the drain voltage, and the gate voltage.
  • the corresponding value can be obtained by querying the correspondence between the above parameters, and then adjusting VDD and VGSo according to the obtained value.
  • This correspondence relationship refers to the value of each parameter when Doherty power is placed under different power conditions to achieve the best power amplifier effect. These values can be obtained through multiple tests, and the table records are saved in the corresponding relationship saving module. For ease of use.
  • any acquisition technology and means may be used, such as acquiring by software or acquiring by hardware.
  • the implementation of the Doherty power amplifier is provided by the embodiment of the present invention.
  • the Tracking function device can adjust the VDD of the Doherty amplifier according to the change information of Pout, and adjust the VGS of the peak power amplifier in the Doherty power amplifier, thereby ensuring that the single-stage or multi-stage Doherty power amplifier achieves high efficiency under different output powers. At the same time, linearity is guaranteed.
  • the implementation of the Doherty power amplifier is provided by the embodiment of the present invention.
  • Tracking function method and device can be applied to single-stage or multi-stage Doherty power amplifiers of peak-to-average ratio (PAR) signal communication systems, such as single-stage or multi-stage doherty power amplifiers used in WCDMA, CDMA, Wimax, TD-SCDMA systems, etc. .
  • PAR peak-to-average ratio
  • a third embodiment of the present invention provides a Doherty power amplifier that can implement a service tracking function.
  • the schematic structure of the Doherty power amplifier is as shown in FIG. 6 , and specifically includes an output power change information acquiring module, an adjusting module, and a corresponding relationship saving module. , among them:
  • an output power change information acquisition module configured to obtain change information of the output power of the Doherty power amplifier, and send the information to the adjustment module.
  • the Doherty power amplifier provided by the embodiment of the present invention can use the detector as an output power change information acquisition module to obtain change information of the output power (Pout). Further, the Doherty power amplifier provided by the embodiment of the present invention may also use other functional devices or modules as the output power change information acquiring module.
  • the adjustment module is used to adjust the drain voltage of the Doherty amplifier and the gate voltage (VGS1, V GS2) of the peak power amplifier (63, 64) in the Doherty power amplifier according to the information obtained by the output power change information acquisition module.
  • the specific operation process of the adjustment module can be: [65] First, the adjustment module can save the module by querying the correspondence relationship, thereby obtaining the correspondence between Pout, VDD, and V GS1, VGS2, that is, the corresponding values between Pout, VDD, and VGS1, VGS2;
  • the adjustment module adjusts VDD and VGS1, VGS2 based on the above values.
  • the Doherty power amplifier provided by the embodiment of the present invention can use digital offset to adjust the above parameters.
  • the Doherty power amplifier provided by the embodiment of the present invention can convert the Pout change information acquired by the detector into an analog signal (A/D) to convert the analog signal into a digital signal;
  • the adjusting module acquires the other parameters VDD and the values of VGS1 and VGS2 corresponding to the Po ut change information by querying the correspondence relationship saving module according to the digital signal;
  • the adjustment module performs the digital/analog (D/A) conversion of the obtained VDD and the values of VGS1 and VGS2, thereby adjusting the peak power amplifier (63, 64) by the analog signal.
  • D/A digital/analog
  • the Doherty power amplifier provided by the embodiment of the present invention may also use other techniques or means, such as adjusting the circuit, to adjust 63 and 64.
  • a correspondence relationship saving module configured to save a correspondence between the output power, the drain voltage, and the gate voltage.
  • the corresponding value in the process of adjusting VDD and VGS1 and VGS2 according to the Pout change information, the corresponding value may be obtained by querying the correspondence between the parameters, and then according to the obtained value. , adjust VDD, VGS1 and VGS2 accordingly.
  • This correspondence relationship refers to the value of each parameter when the Doherty power is placed under different power conditions to achieve the best power amplifier effect.
  • any acquisition technology and means may be used, such as acquiring by software or acquiring by hardware.
  • the Doherty power amplifier capable of implementing the service tracking function according to the embodiment of the present invention can adjust the VDD of the Doherty power amplifier according to the change information of the Pout, and adjust the VGS1 and VGS2 of the peak power amplifier (63, 64) in the Doherty power amplifier, thereby It ensures that the single-stage or multi-stage Doherty power amplifiers achieve higher efficiency at different output powers, ensuring linearity.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour réaliser la fonction de suivi d'un service d'amplification de puissance Doherty. La tension d'électrode de drain de l'amplification de puissance Doherty et la tension de réseau d'amplification de puissance de crête de l'amplification de puissance Doherty sont ajustées conformément aux informations d'écart de puissance de sortie d'amplification de puissance Doherty. Le procédé et le dispositif peuvent assurer l'obtention d'un rendement élevé d'amplification de puissance dans différentes puissances de sortie d'amplification de puissance Doherty à un seul étage ou à étage multiple et maintenir la linéarité en même temps.
PCT/CN2008/071527 2007-07-17 2008-07-02 Procédé et dispositif pour suivre un service d'amplification de puissance doherty WO2009009987A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710119169.9 2007-07-17
CN2007101191699A CN101087161B (zh) 2007-07-17 2007-07-17 实现Doherty功放业务跟踪功能的方法及装置

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8792931B2 (en) 2009-02-26 2014-07-29 Huawei Technologies Co., Ltd. Method, apparatus and system for controlling carrier power amplifier of base station
WO2015024208A1 (fr) * 2013-08-21 2015-02-26 华为技术有限公司 Circuit d'amplificateur de puissance de doherty équilibré et émetteur sans fil
CN114400975A (zh) * 2021-12-15 2022-04-26 陕西亚成微电子股份有限公司 一种基于包络追踪技术的功率放大电路及设计方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087161B (zh) * 2007-07-17 2010-09-29 华为技术有限公司 实现Doherty功放业务跟踪功能的方法及装置
CN101552629B (zh) * 2008-04-01 2012-08-08 中国移动通信集团公司 一种调整多载波功放工作电压的方法、装置及系统
CN101582682B (zh) * 2009-06-12 2011-12-28 华为技术有限公司 一种功率放大器和发射机
CN101924520B (zh) * 2009-06-17 2012-11-14 中兴通讯股份有限公司 一种基站功率放大器及提高基站功率放大器效率的方法
CN102594274A (zh) * 2011-01-11 2012-07-18 中兴通讯股份有限公司 一种功放辅路栅压值设置的方法及装置
CN102685858B (zh) * 2011-03-18 2015-04-22 鼎桥通信技术有限公司 射频单元功耗控制方法及基站系统
CN102427332B (zh) * 2011-11-28 2015-04-08 华为技术有限公司 Doherty功率放大器及提高其功放效率的方法、设备
ES2918928T3 (es) * 2017-06-12 2022-07-21 Huawei Tech Co Ltd Procedimiento y dispositivo para reducir el consumo de energía de un PA
WO2019084911A1 (fr) * 2017-11-03 2019-05-09 Telefonaktiebolaget Lm Ericsson (Publ) Amplificateur de puissance doherty et dispositif radiofréquence le comprenant
CN110545576B (zh) * 2019-09-24 2024-02-23 京信网络系统股份有限公司 一种功放模块、功率调整方法及射频拉远单元

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1131359A (zh) * 1994-12-15 1996-09-18 美国电报电话公司 低功率时效率提高的rf功率放大器
CN1208283A (zh) * 1997-07-11 1999-02-17 摩托罗拉公司 放大信号的方法和装置
JP2004289492A (ja) * 2003-03-20 2004-10-14 Nec Corp ドハーティ増幅器
CN101087161A (zh) * 2007-07-17 2007-12-12 华为技术有限公司 实现Doherty功放业务跟踪功能的方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7064615B2 (en) * 2004-03-24 2006-06-20 Freescale Semiconductor, Inc. Method and apparatus for doherty amplifier biasing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1131359A (zh) * 1994-12-15 1996-09-18 美国电报电话公司 低功率时效率提高的rf功率放大器
CN1208283A (zh) * 1997-07-11 1999-02-17 摩托罗拉公司 放大信号的方法和装置
JP2004289492A (ja) * 2003-03-20 2004-10-14 Nec Corp ドハーティ増幅器
CN101087161A (zh) * 2007-07-17 2007-12-12 华为技术有限公司 实现Doherty功放业务跟踪功能的方法及装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8792931B2 (en) 2009-02-26 2014-07-29 Huawei Technologies Co., Ltd. Method, apparatus and system for controlling carrier power amplifier of base station
CN102612126B (zh) * 2009-02-26 2016-03-30 华为技术有限公司 一种基站载频功放的控制方法、装置及系统
US9331876B2 (en) 2009-02-26 2016-05-03 Huawei Technologies Co., Ltd. Method, apparatus and system for controlling carrier power amplifier of base station
WO2015024208A1 (fr) * 2013-08-21 2015-02-26 华为技术有限公司 Circuit d'amplificateur de puissance de doherty équilibré et émetteur sans fil
US9608573B2 (en) 2013-08-21 2017-03-28 Huawei Technologies Co., Ltd. Balanced Doherty power amplifier circuit and radio transmitter
CN114400975A (zh) * 2021-12-15 2022-04-26 陕西亚成微电子股份有限公司 一种基于包络追踪技术的功率放大电路及设计方法

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CN101087161A (zh) 2007-12-12

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