WO2019080566A1 - Procédé et dispositif de protection d'amplificateur de puissance - Google Patents

Procédé et dispositif de protection d'amplificateur de puissance

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Publication number
WO2019080566A1
WO2019080566A1 PCT/CN2018/097581 CN2018097581W WO2019080566A1 WO 2019080566 A1 WO2019080566 A1 WO 2019080566A1 CN 2018097581 W CN2018097581 W CN 2018097581W WO 2019080566 A1 WO2019080566 A1 WO 2019080566A1
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WO
WIPO (PCT)
Prior art keywords
power
signal
power amplifier
threshold
linear region
Prior art date
Application number
PCT/CN2018/097581
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English (en)
Chinese (zh)
Inventor
葛卫敏
雷文明
唐良建
Original Assignee
京信通信系统（中国）有限公司
京信通信系统（广州）有限公司
京信通信技术(广州)有限公司
天津京信通信系统有限公司
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Publication date
Application filed by 京信通信系统（中国）有限公司, 京信通信系统（广州）有限公司, 京信通信技术(广州)有限公司, 天津京信通信系统有限公司 filed Critical 京信通信系统（中国）有限公司
Publication of WO2019080566A1 publication Critical patent/WO2019080566A1/fr

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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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • 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
    • H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a power amplifier protection method and apparatus implemented by an FPGA.
  • the power amplifier module completes the function of powering up the forward transmission signal and outputting it by the antenna, and is a key module of the base station system. If the module has a faulty fault and no signal is output, the power amplifier module is affected. The normal communication of users in the service area has serious consequences. It can be seen that the function of the power amplifier is very important and the cost is high, so the protection of the power amplifier has always been crucial.
  • the inventors have invented many systems for the protection of the power amplifier by detecting the signal power, periodically detecting in order to avoid high power, and turning off the power amplifier once the power is over, but the protection mode of the power amplifier has no slave signal.
  • the overall analysis of the process provides an effective control of the signal power, which not only hinders the normal operation of the entire system, but also reduces the life of the amplifier.
  • some systems only perform power adjustment on the front end section of the power amplifier to protect the power amplifier.
  • the protection mode of the power amplifier is prone to problems due to excessive power adjustment and affecting the performance of the signal itself.
  • the present invention has been made in order to provide a power amplifier protection method and apparatus that overcomes the above problems or at least partially solves the above problems.
  • a power amplifier protection device includes a baseband signal receiving module, a baseband power amplifier protection module, a DAC front power amplifier protection module, and a digital to analog conversion module;
  • the baseband signal receiving module is configured to convert the received optical signal into a baseband digital signal
  • the baseband power amplifier protection module is configured to detect whether a power of the baseband digital signal is greater than a linear region power threshold of the power amplifier, and adjust power of the baseband digital signal when a power of the baseband digital signal is greater than the linear region power threshold Within the linear region power threshold;
  • the DAC front power amplifier protection module is configured to detect whether the power of the power amplifier input signal processed by the signal processing module of the power amplifier front end is greater than the linear region power threshold, and when the power of the power amplifier input signal is greater than the linear region power threshold, Adjusting a power of the power amplifier input signal to the linear region power threshold;
  • the digital-to-analog conversion module is configured to convert a digital signal processed by the DAC front power amplifier protection module into an analog signal, and send the analog signal to a power amplifier.
  • the power amplifier protection device further includes a power amplifier control module
  • the baseband signal receiving module is further configured to send a first trigger signal to the power amplifier control module when a clock loss or synchronization of the optical port of the optical signal is transmitted, and the period is a period of a first preset time period, and the period is Monitoring whether the optical port returns to normal, and sending a second trigger signal to the power amplifier control module when the optical port returns to normal;
  • the power amplifier control module is configured to turn off the power amplifier switch when the first trigger signal is received, and turn on the power amplifier switch when the second trigger signal is received.
  • the baseband power amplifier protection module includes a mean power control submodule and a first peak power control submodule;
  • the average power control sub-module is configured to calculate a baseband signal average power of the baseband digital signal for a second preset time length, and detect whether the baseband signal average power is greater than a linear region power threshold of the power amplifier, when the baseband When the signal mean power is greater than the linear region power threshold, adjusting the power of the baseband digital signal to the linear region power threshold;
  • the first peak power control submodule is configured to detect whether a peak power of the baseband digital signal is greater than a first preset peak signal threshold of the power amplifier when the baseband signal average power is less than or equal to the linear region power threshold And adjusting a peak power of the baseband digital signal to the first preset peak signal threshold when a peak power of the baseband digital signal is greater than the first preset peak signal threshold.
  • the DAC front power amplifier protection module includes a feedback mean power control submodule and a second peak power control submodule;
  • a feedback average power control sub-module configured to calculate an average power of the input signal of the power amplifier input signal for a third preset time length, and detect whether the average power of the power amplifier input signal is greater than the linear region power threshold, when the power amplifier When the input signal mean is greater than the linear region power threshold, adjusting the power of the power amplifier input signal to the linear region power threshold;
  • the second peak power control submodule is configured to detect, when the average value of the power amplifier input signal is less than or equal to the linear region power threshold, whether a peak power of the power amplifier input signal is greater than a second preset peak signal threshold of the power amplifier And adjusting a peak power of the power amplifier input signal to the second preset peak signal threshold when a peak power of the power amplifier input signal is greater than the second preset peak signal threshold.
  • the feedback mean power control sub-module is implemented by an automatic gain control circuit.
  • a power amplifier protection method including:
  • the method further includes:
  • the first trigger signal is sent, and the optical port is periodically restored to be normal when the optical port is restored.
  • the second trigger signal is sent;
  • the power amplifier switch is turned off when the first trigger signal is received, and the power amplifier switch is turned on when the second trigger signal is received.
  • the baseband digital signal is The peak power is adjusted to within the first predetermined peak signal threshold.
  • the power of the power amplifier input signal processed by the signal processing module of the power amplifier front end is greater than the linear region power threshold.
  • the power amplifier input signal is detected.
  • the power is adjusted to the linear region power threshold, including:
  • the power amplifier input signal is The peak power is adjusted to within the second predetermined peak signal threshold.
  • an embodiment of the present invention also provides a transmitter including the power amplifier protection device as described above.
  • the power amplifier protection method and device provided by the embodiments of the present invention perform an overall analysis on the signal processing process by controlling the signal power from the input end of the signal and the output end of the signal processing module, thereby maintaining the linearity of the output signal in the power amplifier.
  • the regional power threshold not only the power in the protection system is not damaged during normal operation, but also the protection of the power amplifier, and the sustained performance of the signal is preserved, which increases the reliability of the system.
  • FIG. 1 is a schematic structural diagram of a power amplifier protection device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a power amplifier protection device according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a power amplifier protection method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a specific implementation of a power amplifier protection method according to another embodiment of the present invention.
  • FIG. 1 is a schematic block diagram showing the structure of a power amplifier protection device according to an embodiment of the present invention.
  • a power amplifier protection apparatus according to an embodiment of the present invention specifically includes a baseband signal receiving module 101, a baseband power amplifier protection module 102, a DAC front power amplifier protection module 103, and a digital to analog conversion module 104, and the baseband signal receiving module 101 and baseband power amplifier protection.
  • the module 102 is sequentially connected to the signal input end of the signal processing module 105 at the front end of the power amplifier.
  • the DAC front power amplifier protection module 103 and the digital-to-analog conversion module 104 are sequentially connected to the signal output end of the signal processing module 105 and the power amplifier 106 to be protected. Between the signal inputs.
  • the signal processing module 105 is part of the power amplifier system and is configured to perform function-related arithmetic processing on the received signals according to the system's own functional requirements.
  • the baseband signal receiving module 101 is configured to convert the received optical signal into a baseband digital signal.
  • the baseband signal receiving module 101 converts the optical signal received from the optical port into a baseband digital signal according to a protocol, and transmits the baseband digital signal to the baseband power amplifier protection module 102.
  • the baseband power amplifier protection module 102 is configured to detect whether the power of the baseband digital signal is greater than a linear region power threshold of the power amplifier, and when the power of the baseband digital signal is greater than the linear region power threshold, the power of the baseband digital signal is used. Adjusted to the linear region power threshold, otherwise, no processing.
  • the power region threshold of the power amplifier in the embodiment is specifically an upper power limit allowed by the power amplifier linear region, which is determined in advance according to the power amplifier performance test.
  • the baseband power amplifier protection module 102 maintains the output signal in the linear region of the power amplifier by automatically adjusting the digital signal power at the input end of the signal processing module of the power amplifier front end, thereby protecting the power in the system from being damaged during normal operation.
  • the DAC front power amplifier protection module 103 is configured to detect whether the power of the power amplifier input signal processed by the signal processing module 105 of the power amplifier front end is greater than the linear region power threshold, and when the power of the power amplifier input signal is greater than the linear region power threshold The power of the power amplifier input signal is adjusted to the linear region power threshold, otherwise, no processing is performed.
  • the DAC front power amplifier protection module 103 maintains the output signal in the linear region of the power amplifier by automatically adjusting the digital signal power at the output end of the signal processing module of the power amplifier front end, thereby protecting the power in the system from normal operation. Not damaged.
  • the digital-to-analog conversion module 104 is configured to convert the digital signal processed by the DAC front power amplifier protection module 103 into an analog signal, and send the analog signal to the power amplifier 106 through the radio frequency circuit.
  • the power amplifier protection device ensures the protection of the power amplifier by adjusting the signal power at the input end of the system and the output end of the signal processing module to ensure that the signal is maintained in the linear working area of the power amplifier.
  • the implementation of the present invention preferably builds corresponding modules and systems within the FPGA chip platform, but does not limit the same implementation and system setup in other digital chips.
  • FIG. 2 is a schematic block diagram showing the structure of a power amplifier protection device according to another embodiment of the present invention.
  • the power amplifier protection device further includes a power amplifier control module 107.
  • the baseband signal receiving module 101 is further configured to: when the optical port of the optical signal is transmitted, the clock is lost or lost.
  • the first trigger signal is sent to the power amplifier control module, and the optical port is periodically monitored to be normal after the first preset time length is used.
  • the control module sends a second trigger signal.
  • the power amplifier control module 107 is configured to turn off the power amplifier switch when the first trigger signal is received, and turn on the power amplifier switch when the second trigger signal is received.
  • the baseband signal receiving module 101 receives the optical signal transmitted by the optical fiber and converts it into a digital signal. When the optical fiber appears synchronous or the clock loses lock, there is a trigger mechanism, and the power amplifier control module 107 Turn off the amplifier switch in time to turn off the amplifier. The baseband signal receiving module 101 periodically monitors whether the optical port returns to normal. After waiting for the first preset time length, if the optical fiber works normally, the power amplifier control module 107 turns on the power amplifier, otherwise the power amplifier remains off.
  • the first preset time length is preferably 1 s, and is detected in a cycle of 1 s.
  • the baseband power amplifier protection module 102 specifically includes an average power control submodule and a first peak power control submodule, where:
  • a mean power control sub-module configured to calculate a baseband signal average power of the baseband digital signal for a second preset time length, and detect whether the baseband signal average power is greater than a linear region power threshold of the power amplifier, when the baseband signal average When the power is greater than the linear region power threshold, the power of the baseband digital signal is adjusted to within the linear region power threshold.
  • the second preset time length may be set according to the power amplifier performance and the application scenario, and is preferably 10 ms in this embodiment.
  • the mean power control sub-module compares the average power of the baseband signal every 10 ms with the upper power limit allowed by the power amplifier linear region (the linear region power threshold of the power amplifier), and if the upper limit value is exceeded, The gain is such that the power of the baseband digital signal falls back into the linear region. If the linear region power threshold is not exceeded, the first peak power control sub-module is activated.
  • a first peak power control submodule configured to detect whether a peak power of the baseband digital signal is greater than a first preset peak signal threshold of the power amplifier when the baseband signal average power is less than or equal to the linear region power threshold
  • the peak power of the baseband digital signal is adjusted to be within the first preset peak signal threshold.
  • a signal upper limit value allowed by the power amplifier is set as the first preset peak signal threshold. If the power of the baseband digital signal exceeds the upper limit value, the power of the baseband digital signal is returned to the upper limit value. . It can be understood that the first preset peak signal threshold should be less than or equal to the linear region power threshold of the power amplifier.
  • the DAC front power amplifier protection module 103 includes a feedback mean power control submodule and a second peak power control submodule, where:
  • a feedback average power control sub-module configured to calculate an average power of the input signal of the power amplifier input signal for a third preset time length, and detect whether the average power of the power amplifier input signal is greater than the linear region power threshold, when the power amplifier When the input signal mean is greater than the linear region power threshold, the power of the power amplifier input signal is adjusted to the linear region power threshold.
  • the feedback mean power control sub-module is implemented by an automatic gain control circuit, and the automatic gain control circuit adjusts the power gain according to the feedback value of the received power and the self-set value (ie, the linear region power threshold of the power amplifier), and the power amplifier has been adjusted. The power of the input signal is adjusted to within the linear region power threshold. If the linear region power threshold is not exceeded, the second peak power control sub-module is activated.
  • a second peak power control submodule configured to detect, when the average value of the power amplifier input signal is less than or equal to the linear region power threshold, whether a peak power of the power amplifier input signal is greater than a second preset peak signal threshold of the power amplifier.
  • the peak power of the power amplifier input signal is adjusted to the second preset peak signal threshold.
  • a signal upper limit value allowed by the power amplifier is set as a second preset peak signal threshold. If the peak power of the power amplifier input signal exceeds the upper limit value, the peak power of the power amplifier input signal is backed off to the upper limit. Below the value. It can be understood that the second preset peak signal threshold should be less than or equal to the linear region power threshold of the power amplifier.
  • the power amplifier protection method and device provided by the embodiments of the present invention are a digital power self-adjusting power amplifier protection method.
  • power amplifiers are essential in the field of communications due to their high cost.
  • the FPGA chip is used for digital signal processing to realize power amplifier protection, and there is no redundant external circuit to control, thereby saving cost.
  • the invention mainly adjusts the signal power, supplemented by the forced switching power amplifier method, and can effectively extend the service life of the power amplifier.
  • the invention converts the signal from the receiving optical port into a digital signal based on the architecture of the FPGA chip, and at the same time determines whether the optical port has a clock loss or synchronization, and if the clock loses lock or falls out, the power amplifier switch is turned off. Otherwise, the power amplifier works normally; the baseband signal is subjected to the mean power adjustment and the peak power adjustment. If the threshold is exceeded, the power is adjusted to the linear region of the power amplifier, so that the power is controlled at the beginning of the circuit, which will affect the performance of the signal. To the protection effect, it is also conducive to the subsequent signal processing work.
  • Signal processing after power-adjusted signal; agc circuit power adjustment and peak power adjustment are performed on the processed signal before the DAC, the signal is controlled in the linear region of the power amplifier, and the signal power is simultaneously controlled by the start end and the transmitting end Adjust to ensure that the signal performance is adjusted to the linear area of the amplifier to protect the amplifier from large signal damage. Finally, the digital signal is converted into an analog signal and transmitted to the power amplifier RF circuit.
  • the invention not only protects the power in the system from being damaged during normal operation, but also achieves the protection function of the power amplifier, and also saves the continuous performance of the signal, thereby increasing the reliability of the system.
  • FIG. 3 is a flow chart showing a power amplifier protection method according to an embodiment of the present invention.
  • the power amplifier protection method provided by the embodiment of the present invention specifically includes the following steps:
  • the adjusted baseband digital signal is sent to the signal processing module of the power amplifier front end of the system for signal processing, and then step S203 is performed to Power adjustment is performed on the power amplifier input signal processed by the signal processing module.
  • step S202 is specifically implemented by: calculating a baseband signal average power of the baseband digital signal in a second preset time length, and detecting whether the baseband signal average power is greater than a power amplifier linear region power threshold.
  • a power amplifier linear region power threshold When the baseband signal average power is greater than the linear region power threshold, adjusting the power of the baseband digital signal to the linear region power threshold; otherwise, detecting whether the peak power of the baseband digital signal is greater than the first of the power amplifier Presetting a peak signal threshold, and adjusting a peak power of the baseband digital signal to the first preset peak signal threshold when a peak power of the baseband digital signal is greater than the first preset peak signal threshold.
  • step S203 is specifically implemented by: counting an input signal average power of the power amplifier input signal for a third preset time length, and detecting whether the input signal average power is greater than the linear region power threshold.
  • the average value of the input signal is greater than the linear region power threshold, adjusting the power of the power amplifier input signal to the linear region power threshold; otherwise, detecting whether the peak power of the power amplifier input signal is greater than the second preamp of the power amplifier And setting a peak signal threshold, and adjusting a peak power of the power amplifier input signal to the second preset peak signal threshold when a peak power of the power amplifier input signal is greater than the second preset peak signal threshold.
  • the power amplifier protection method provided by the embodiment of the invention adopts the adjustment of the signal power at the input end of the system and the output end of the signal processing module to ensure that the signal is maintained in the linear working area of the power amplifier to realize the protection of the power amplifier.
  • the first trigger signal is sent, and the optical port is periodically restored to be normal when the optical port is restored.
  • the second trigger signal is sent;
  • the power amplifier switch is turned off when the first trigger signal is received, and the power amplifier switch is turned on when the second trigger signal is received.
  • FIG. 4 is a specific flowchart of a power self-adjusting power amplifier protection method according to an embodiment of the present invention. As shown in FIG. 4, the power amplifier protection method in this embodiment specifically includes the following steps:
  • Step 301 the system is started, and each module enters a normal operating state
  • Step 302 The baseband signal receiving module is responsible for receiving the signal from the optical port and converting it into a digital signal, and at step 303, determining whether the optical port has a clock loss or synchronization during the receiving process, if there is a clock loss or synchronization, step 304 Turn off the power amplifier switch, otherwise the power amplifier works normally, and enter step 305 baseband signal power processing;
  • Step 306 determining whether the baseband average power exceeds the threshold. If the threshold is exceeded, the process proceeds to step 307 to perform baseband signal average power adjustment. Otherwise, the process proceeds to step 308 to determine whether the peak power exceeds the threshold. If the threshold is exceeded, the process proceeds to the step. 309 performs baseband signal peak power adjustment, otherwise it is not processed;
  • Step 310 is signal processing of system functionality
  • Step 311 is to process the power of the DAC signal
  • step 312 is to determine whether the power of the power amplifier input signal before the DAC exceeds the threshold. If the threshold is exceeded, the process proceeds to step 313 to adjust the power of the power input signal. Otherwise, the process is not processed. 314: determining whether the peak power of the power amplifier input signal exceeds a threshold, if the threshold is exceeded, proceed to step 315 to perform peak power adjustment of the power amplifier input signal, otherwise no processing;
  • step 316 sends the adjusted power amplifier input signal to the RF power amplifier through digital-to-analog conversion.
  • the power amplifier protection method and device provided by the embodiments of the present invention perform an overall analysis on the signal processing process by controlling the signal power from the input end of the signal and the output end of the signal processing module, thereby maintaining the linearity of the output signal in the power amplifier.
  • the regional power threshold not only the power in the protection system is not damaged during normal operation, but also the protection of the power amplifier, and the sustained performance of the signal is preserved, which increases the reliability of the system.
  • an embodiment of the present invention further provides a transmitter, where the transmitter includes the power amplifier protection device according to any of the above embodiments.
  • the transmitter provided by the embodiment of the present invention is specifically described by taking a power amplifier protection device as shown in FIG. 1 as an example.
  • the transmitter provided by the embodiment of the present invention includes the power amplifier protection device, the power amplifier module and the signal processing module of the front end of the power amplifier module, and the baseband signal receiving module 101 and the baseband power amplifier protection module 102 in the power amplifier protection device are sequentially connected to the signal.
  • the DAC front power amplifier protection module 103 and the digital to analog conversion module 104 are sequentially connected to the signal processing module.
  • the transmitter provided by the embodiment of the invention uses the FPGA chip to perform digital signal processing to realize power amplifier protection. There is no redundant external circuit to control, no additional cost is needed, and no manual intervention is required, and the software configuration is convenient. Moreover, by performing an overall analysis of the signal processing process, the output signal is kept within the linear region power threshold of the power amplifier, which not only facilitates the operation of the signal in the linear region of the power amplifier, but also ensures the performance of the signal.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un procédé et un dispositif de protection d'amplificateur de puissance, le dispositif comprenant : un module de réception de signal de bande de base, qui convertit un signal optique reçu en un signal numérique de bande de base ; un module de protection d'amplificateur de puissance de bande de base, qui détecte si la puissance du signal numérique de bande de base est supérieure à un seuil de puissance d'une région linéaire d'un amplificateur de puissance et qui règle la puissance du signal numérique de bande de base pour qu'elle se trouve à l'intérieur du seuil de puissance de la région linéaire lorsque la puissance du signal numérique de bande de base est supérieure au seuil de puissance de la région linéaire ; un module de protection d'amplificateur de puissance frontale de convertisseur numérique-analogique (CNA), qui détecte si la puissance d'un signal d'entrée d'amplificateur de puissance qui a été traité au moyen d'un module de traitement de signal d'une extrémité avant d'amplificateur de puissance est supérieure au seuil de puissance de la région linéaire et qui règle la puissance du signal d'entrée d'amplificateur de puissance pour qu'elle se trouve à l'intérieur du seuil de puissance de la région linéaire lorsque la puissance du signal d'entrée d'amplificateur de puissance est supérieure au seuil de puissance de la région linéaire ; un module de conversion numérique-analogique, qui convertit un signal numérique traité en un signal analogique et qui l'envoie à l'amplificateur de puissance. La présente invention peut commander efficacement une puissance de signal de façon à obtenir un effet protecteur pour un amplificateur de puissance et augmenter la fiabilité du système.
PCT/CN2018/097581 2017-10-26 2018-07-27 Procédé et dispositif de protection d'amplificateur de puissance WO2019080566A1 (fr)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107612588B (zh) * 2017-10-26 2019-06-25 京信通信系统（中国）有限公司 一种功放保护方法及装置
CN109889968B (zh) * 2019-01-08 2021-11-02 京信网络系统股份有限公司 功放设备和功放设备的老化方法
CN112383951B (zh) * 2020-11-16 2022-08-09 深圳国人无线通信有限公司 基站发射设备及其供电管理方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100560731B1 (ko) * 2005-05-27 2006-03-17 주식회사 웨이브일렉트로닉스 과입력 신호로부터 전력 증폭기를 보호하는 장치
CN102111195A (zh) * 2010-12-29 2011-06-29 武汉邮电科学研究院 远端射频单元系统功放过功率保护方法
CN103188185A (zh) * 2011-12-30 2013-07-03 中兴通讯股份有限公司 数字预失真中的功放保护方法及装置
CN103716096A (zh) * 2012-09-29 2014-04-09 京信通信系统（中国）有限公司 直放站载波波动校准方法和装置
CN107612588A (zh) * 2017-10-26 2018-01-19 京信通信系统（中国）有限公司 一种功放保护方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050227646A1 (en) * 2004-03-18 2005-10-13 Ryo Yamazaki Detecting and maintaining linearity in a power amplifier system through comparing peak and RMS power levels
US7751784B2 (en) * 2004-06-30 2010-07-06 Black Sand Technologies, Inc. Method of protecting power amplifiers
CN100459767C (zh) * 2005-05-27 2009-02-04 华为技术有限公司 防止功率放大器发生过激的方法和装置
CN102064880A (zh) * 2009-11-13 2011-05-18 中兴通讯股份有限公司 一种射频拉远模块及其功放保护方法
CN102202022B (zh) * 2011-03-31 2014-02-05 京信通信系统（中国）有限公司 一种dpd系统中保护功放的方法及装置
CN102271425B (zh) * 2011-06-22 2017-07-14 南京中兴新软件有限责任公司 一种保护功放的方法和装置
CN103138685B (zh) * 2011-11-28 2015-06-10 中国科学院上海微系统与信息技术研究所 一种ofdm自适应前馈线性功率放大装置
CN103187934A (zh) * 2011-12-30 2013-07-03 中兴通讯股份有限公司 一种射频功率放大器的保护方法及rru

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100560731B1 (ko) * 2005-05-27 2006-03-17 주식회사 웨이브일렉트로닉스 과입력 신호로부터 전력 증폭기를 보호하는 장치
CN102111195A (zh) * 2010-12-29 2011-06-29 武汉邮电科学研究院 远端射频单元系统功放过功率保护方法
CN103188185A (zh) * 2011-12-30 2013-07-03 中兴通讯股份有限公司 数字预失真中的功放保护方法及装置
CN103716096A (zh) * 2012-09-29 2014-04-09 京信通信系统（中国）有限公司 直放站载波波动校准方法和装置
CN107612588A (zh) * 2017-10-26 2018-01-19 京信通信系统（中国）有限公司 一种功放保护方法及装置

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