CN103188185A - Protection method and protection device of power amplifier of digital pre-distortion - Google Patents
Protection method and protection device of power amplifier of digital pre-distortion Download PDFInfo
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- CN103188185A CN103188185A CN2011104542744A CN201110454274A CN103188185A CN 103188185 A CN103188185 A CN 103188185A CN 2011104542744 A CN2011104542744 A CN 2011104542744A CN 201110454274 A CN201110454274 A CN 201110454274A CN 103188185 A CN103188185 A CN 103188185A
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 8
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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
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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
Abstract
The invention provides a protection method and a protection device of a power amplifier of digital pre-distortion. The protection device of the power amplifier of the digital pre-distortion comprises a system signal generation module, a digital pre-distortion module, a power amplifier protection module, a digital-to-analogue conversion module, a power amplifier simulation link module, a analog-to-digital conversion module and a power amplifier protection recovery module, wherein the system signal generation module, the digital pre-distortion module, the power amplifier protection module, the digital-to-analogue conversion module, the power amplifier simulation link module and the analog-to-digital conversion module are connected in sequence, and the power amplifier protection recovery module is connected with the power amplifier protection module. The protection device of the power amplifier of the digital pre-distortion further comprises a power amplifier protection state acquisition module, an automatic detection module and a trigger module, wherein the state acquisition module is used for acquiring corresponding relation between signal power and compensation energy before digital distortion and a protection threshold and storing the corresponding relation and the protection threshold in an internal memory, the automatic detection module is used for acquiring detection signal power and extracting the corresponding relation and the protection threshold from the internal memory and judging whether a current digital pre-distortion state meets power amplifier protection requirements according to the detection signal power, the corresponding relation and the protection threshold, if the current digital pre-distortion state meets the power amplifier protection requirements, a control signal is sent, and the trigger module is used for triggering and selecting a power amplifier protection mode according to the control signal. According to the protection method and the protection device of the power amplifier of the digital pre-distortion, the power amplifier is prevented from being damaged.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to power amplification protecting method and device in a kind of digital pre-distortion.
Background technology
Along with developing rapidly of mobile communication technology, it is more and more crowded that wireless communication frequency band becomes, and band resource is more and more nervous, along with reducing of channel width, the raising of the availability of frequency spectrum, thing followed problem is the increase of out-of-band radiation, causing increases monkey chatter.In order to solve this type of problem, digital pre-distortion technology is adopted to compensate the nonlinear characteristic of power amplifier widely.And digital pre-distortion technology is finished at numeric field for the gamma correction of power amplifier, and it must guarantee that corrected value satisfies the requirement of digital bit wide.For protect better power amplifier not can by numeric field cause damage unusually, the numerical protection technology is adopted widely.A large amount of improved numerical protection technology become the power amplifier resist technology of present main flow with its good accuracy, stability and high efficiency.
Summary of the invention
The embodiment of the invention provides power amplification protecting method and the device in a kind of digital pre-distortion, to solve power amplifier because of the problem that causes damage unusually of numeric field.
The embodiment of the invention provides the power amplifier protection device in a kind of digital pre-distortion; this device comprises that system signal generation module, digital pre-distortion module, power amplifier protection module, D/A converter module, power amplifier analog link module and the analog-to-digital conversion module that connects successively and the power amplifier that links to each other with described power amplifier protection module protection recover module; this device comprises that also power amplifier guard mode acquisition module, power amplifier protect automatic detection module and power amplifier protection trigger module, wherein:
Described power amplifier guard mode acquisition module is used for obtaining digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding, and described corresponding relation and protection thresholding are deposited in the internal memory of described power amplifier guard mode acquisition module;
Described power amplifier is protected automatic detection module, be used for obtaining detection signal power, from described internal memory, extract described corresponding relation and protection thresholding, and judge according to described detection signal power, described corresponding relation and described protection thresholding whether the state of current digital pre-distortion satisfies the power amplifier protective condition, if satisfy, then transmit control signal to described power amplifier protection trigger module;
Described power amplifier protection trigger module is used for the described control signal triggering selection power amplifier protected mode of protecting automatic detection module to send according to described power amplifier.
Preferably, described power amplifier is protected automatic detection module, also is used for if the state of current digital pre-distortion does not satisfy the power amplifier protective condition, then starts described power amplifier protection and recovers module.
Preferably, the input of described power amplifier guard mode acquisition module links to each other with the output of the output of described system signal generation module, described digital pre-distortion module and the output of described analog-to-digital conversion module respectively;
Described power amplifier guard mode acquisition module; concrete being used for obtains the digital pre-distortion front signal, obtains signal behind the digital pre-distortion and obtain feedback signal from the output of described analog-to-digital conversion module from the output of described digital pre-distortion module from the output of described system signal generation module, obtains described corresponding relation and described protection thresholding according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
Preferably; described power amplifier is protected automatic detection module; concrete arbitrary signal for the feedback signal of signal and the output of described analog-to-digital conversion module behind the digital pre-distortion of the digital pre-distortion front signal that obtains described system signal generation module output, the output of described digital pre-distortion module, the power of described signal is detection signal power.
Preferably, described power amplifier protected mode is any in the following protected mode:
The peak value threshold protected mode, identify power automatically and adjust protected mode, average power thresholding protected mode, bandwidth identification protecting pattern, digital pre-distortion coefficient identification protecting pattern and digital pre-distortion coefficient energy constraint thresholding protected mode.
The embodiment of the invention also provides the power amplification protecting method in a kind of digital pre-distortion, and this method comprises:
Obtain digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding, and described corresponding relation and protection thresholding are deposited in the internal memory;
Obtain detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; then triggering selection power amplifier protected mode is finished and this power amplifier protected mode corresponding parameters configuration.
Preferably, describedly judge whether described current power amplifier satisfies after the power amplifier protective condition, and described method also comprises:
If current power amplifier does not satisfy described power amplifier protective condition, then judge whether to satisfy the power amplifier protective condition that resets, if satisfy, then recover the raw parameter configuration of described power amplifier, if do not satisfy, then continue to judge whether current power amplifier satisfies the power amplifier protective condition.
Preferably, described corresponding relation and the protection thresholding that obtains current power amplifier power and compensation energy comprises:
Signal and feedback signal behind acquisition digital pre-distortion front signal, the digital pre-distortion are obtained described corresponding relation and described protection thresholding according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
Preferably, described acquisition detection signal power comprises:
Obtain the arbitrary signal in the signal and feedback signal behind described digital pre-distortion front signal, the digital pre-distortion, the power of described signal is detection signal power.
Preferably; described acquisition detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; then triggering selection power amplifier protected mode is finished and this power amplifier protected mode corresponding parameters configuration, comprising:
Dispose the power output of current power amplifier less than rated power;
From described internal memory, extract described corresponding relation and protection thresholding;
Detect the power of digital pre-distortion front signal;
Judge that whether the offset of this power correspondence is greater than described protection thresholding, if greater than described protection thresholding, then reduce described power output, if smaller or equal to described protection thresholding, then judge whether to start automatic identification power adjustment protection, if do not start, judge then whether described power output reaches described rated power, if reach, then stop to adjust described power output, if do not reach, then increase described power output; Continue to detect the power of digital pre-distortion front signal.
Above-mentioned power amplification protecting method and device have adopted extraction power amplifier parameter and Automatic Measurement Technique, have not only improved the accuracy of power amplifier protection, and have improved the stability of power amplifier protection, have increased the real-time of power amplifier protection simultaneously.
Description of drawings
Fig. 1 is the structural representation of the power amplifier protection device embodiment in the digital pre-distortion of the present invention;
Fig. 2 is the flow chart of the power amplification protecting method embodiment in the digital pre-distortion of the present invention;
Fig. 3 is the flow chart that the present invention identifies power adjustment protection embodiment automatically.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter will be elaborated to embodiments of the invention by reference to the accompanying drawings.Need to prove that under the situation of not conflicting, the embodiment among the application and the feature among the embodiment be combination in any mutually.
As shown in Figure 1; it is the structural representation of the power amplifier protection device embodiment in the digital pre-distortion of the present invention; this device comprises that system signal generation module 101, digital pre-distortion module 102, power amplifier protection module 103, D/A converter module 104, power amplifier analog link module 105, the analog-to-digital conversion module 106 that connects successively and the power amplifier that links to each other with described power amplifier protection module 103 protection recover module 107; this device comprises that also power amplifier guard mode acquisition module 108, power amplifier protect automatic detection module 109 and power amplifier protection trigger module 110, wherein:
Described power amplifier guard mode acquisition module is used for obtaining digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding, and described corresponding relation and protection thresholding are deposited in the internal memory of described power amplifier guard mode acquisition module;
Described power amplifier is protected automatic detection module, be used for obtaining detection signal power, from described internal memory, extract described corresponding relation and protection thresholding, and judge according to described detection signal power, described corresponding relation and described protection thresholding whether the state of current digital pre-distortion satisfies the power amplifier protective condition, if satisfy, then transmit control signal to described power amplifier protection trigger module;
Described power amplifier protection trigger module is used for the described control signal triggering selection power amplifier protected mode of protecting automatic detection module to send according to described power amplifier.
Wherein, the input of described power amplifier guard mode acquisition module links to each other with the output of the output of described system signal generation module, described digital pre-distortion module and the output of described analog-to-digital conversion module respectively; As shown in Figure 1.Described power amplifier guard mode acquisition module; concrete being used for obtains the digital pre-distortion front signal, obtains signal behind the digital pre-distortion and obtain feedback signal from the output of described analog-to-digital conversion module from the output of described digital pre-distortion module from the output of described system signal generation module, obtains described corresponding relation and described protection thresholding according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
In addition; described power amplifier is protected automatic detection module; concrete arbitrary signal for the feedback signal of signal and the output of described analog-to-digital conversion module behind the digital pre-distortion of the digital pre-distortion front signal that obtains described system signal generation module output, the output of described digital pre-distortion module, the power of described signal is detection signal power.
Use process that above-mentioned power amplifier protection device carries out power amplifier protection as shown in Figure 2, this process may further comprise the steps:
Step 201, system start, and produce system signal;
Step 202, unlatching digital pre-distortion module;
Step 203, unlatching power amplifier guard mode acquisition module obtain digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding;
Step 204, with corresponding relation and the protection thresholding be stored in the internal memory of power amplifier guard mode acquisition module;
Step 205, unlatching power amplifier are protected automatic detection module;
Step 206, from the internal memory of power amplifier guard mode acquisition module, extract corresponding relation and protection thresholding;
Wherein, above-mentioned corresponding relation and protection thresholding can once extract, also can real-time update;
Step 207, the state of current digital pre-distortion is detected, judge whether to satisfy the power amplifier protective condition, if satisfy execution in step 208; Otherwise, execution in step 210;
Step 208, enter power amplifier protection trigger module, select corresponding power amplifier protected mode;
The power amplifier protected mode can comprise multiple mode, for example: the peak value threshold protection, identify the power adjustment automatically, the protection of average power thresholding, bandwidth identification protecting, digital pre-distortion coefficient identification protecting, digital pre-distortion coefficient energy constraint thresholding protection etc.
Step 209, startup power amplifier protection module are finished corresponding power amplifier protected mode, and carry out corresponding ALM and system parameters configuration adjustment; Finish;
Step 210, judge whether to satisfy the power amplifier protective condition that resets, if then start the power amplifier protection and recover module and carry out the recovery of system and resetting of power amplifier protection module; Otherwise, turn to step 207.
Adjusting protected mode with automatic identification power below is that embodiment describes the automatic identification power adjustment protection implementation procedure in the digital pre-distortion, and as shown in Figure 3, this implementation procedure is as follows:
The relative rated power of the power output of step 303, system configuration power amplifier is less than 3dB;
The power detection that step 305, the protection of unlatching power amplifier detect automatically;
Said apparatus and method are not limited to only the GSM multi-carrier signal be carried out the power amplifier protection of predistortion, for TD_SCDMA signal, UMTS signal, LTE signal, WiMAX, LTE﹠amp; UMTS mixes broadband signals such as mould, and its power amplifier protection effect is better than traditional digital power amplifier resist technology equally; In addition, also be applicable to GSM, UMTS, LTE, WiMAX and broadband systems such as TD-SCDMA single mode or bimodulus.
Above-mentioned power amplifier protection device; adopt extraction power amplifier parameter and Automatic Measurement Technique, not only improved the accuracy of power amplifier protection, and improved the stability of power amplifier protection; increased the real-time of power amplifier protection simultaneously, made this device more be applicable to the digital pre-distortion treatment system of quick renewal.
The embodiment of the invention also provides the power amplification protecting method in a kind of digital pre-distortion, and this method is that main body is described with the power amplifier protection device in the digital pre-distortion, and this method comprises:
Step 1, obtain digital pre-distortion front signal power with the compensation energy corresponding relation and the protection thresholding, and with described corresponding relation and the protection thresholding deposit in the internal memory;
This step comprises: signal and feedback signal behind acquisition digital pre-distortion front signal, the digital pre-distortion, obtain described corresponding relation and described shutter according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
Step 2, acquisition detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; then triggering selection power amplifier protected mode is finished and this power amplifier protected mode corresponding parameters configuration.
Wherein, described acquisition detection signal comprises: obtain the arbitrary signal in the signal and feedback signal behind described digital pre-distortion front signal, the digital pre-distortion, the power of described signal is detection signal power.Described power amplifier protected mode can be in the following protected mode any: the peak value threshold protected mode, identify power automatically and adjust protected mode, average power thresholding protected mode, bandwidth identification protecting pattern, digital pre-distortion coefficient identification protecting pattern and digital pre-distortion coefficient energy constraint thresholding protected mode.
In addition; describedly judge whether described current power amplifier satisfies after the power amplifier protective condition; described method also comprises: if current power amplifier does not satisfy described power amplifier protective condition; then judge whether to satisfy the power amplifier protective condition that resets; if satisfy; then recover the raw parameter configuration of described power amplifier, if do not satisfy, then continue to judge whether current power amplifier satisfies the power amplifier protective condition.
Further; described acquisition detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; then triggering selection power amplifier protected mode is finished and this power amplifier protected mode corresponding parameters configuration, comprising:
Dispose the power output of current power amplifier less than rated power;
From described internal memory, extract described corresponding relation and protection thresholding;
Detect the power of digital pre-distortion front signal;
Judge that whether the offset of this power correspondence is greater than described protection thresholding, if greater than described protection thresholding, then reduce described power output, if smaller or equal to described protection thresholding, then judge whether to start automatic identification power adjustment protection, if do not start, judge then whether described power output reaches described rated power, if reach, then stop to adjust described power output, if do not reach, then increase described power output; Continue to detect the power of digital pre-distortion front signal.
Above-mentioned power amplification protecting method has adopted extraction power amplifier parameter and Automatic Measurement Technique, has not only improved the accuracy of power amplifier protection, and has improved the stability of power amplifier protection, has increased the real-time of power amplifier protection simultaneously.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to finish by program, said procedure can be stored in the computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the power amplifier protection device in the digital pre-distortion; this device comprises that system signal generation module, digital pre-distortion module, power amplifier protection module, D/A converter module, power amplifier analog link module and the analog-to-digital conversion module that connects successively and the power amplifier that links to each other with described power amplifier protection module protection recover module; this device comprises that also power amplifier guard mode acquisition module, power amplifier protect automatic detection module and power amplifier protection trigger module, wherein:
Described power amplifier guard mode acquisition module is used for obtaining digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding, and described corresponding relation and protection thresholding are deposited in the internal memory of described power amplifier guard mode acquisition module;
Described power amplifier is protected automatic detection module, be used for obtaining detection signal power, from described internal memory, extract described corresponding relation and protection thresholding, and judge according to described detection signal power, described corresponding relation and described protection thresholding whether the state of current digital pre-distortion satisfies the power amplifier protective condition, if satisfy, then transmit control signal to described power amplifier protection trigger module;
Described power amplifier protection trigger module is used for the described control signal triggering selection power amplifier protected mode of protecting automatic detection module to send according to described power amplifier.
2. device according to claim 1 is characterized in that:
Described power amplifier is protected automatic detection module, also is used for if the state of current digital pre-distortion does not satisfy the power amplifier protective condition, then starts described power amplifier protection and recovers module.
3. device according to claim 1 and 2 is characterized in that:
The input of described power amplifier guard mode acquisition module links to each other with the output of the output of described system signal generation module, described digital pre-distortion module and the output of described analog-to-digital conversion module respectively;
Described power amplifier guard mode acquisition module; concrete being used for obtains the digital pre-distortion front signal, obtains signal behind the digital pre-distortion and obtain feedback signal from the output of described analog-to-digital conversion module from the output of described digital pre-distortion module from the output of described system signal generation module, obtains described corresponding relation and described protection thresholding according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
4. device according to claim 3 is characterized in that:
Described power amplifier is protected automatic detection module; concrete arbitrary signal for the feedback signal of signal and the output of described analog-to-digital conversion module behind the digital pre-distortion of the digital pre-distortion front signal that obtains described system signal generation module output, the output of described digital pre-distortion module, the power of described signal is detection signal power.
5. device according to claim 4 is characterized in that:
Described power amplifier protected mode is any in the following protected mode:
The peak value threshold protected mode, identify power automatically and adjust protected mode, average power thresholding protected mode, bandwidth identification protecting pattern, digital pre-distortion coefficient identification protecting pattern and digital pre-distortion coefficient energy constraint thresholding protected mode.
6. the power amplification protecting method in the digital pre-distortion is characterized in that this method comprises:
Obtain digital pre-distortion front signal power and the corresponding relation that compensates energy and protection thresholding, and described corresponding relation and protection thresholding are deposited in the internal memory;
Obtain detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; then triggering selection power amplifier protected mode is finished and this power amplifier protected mode corresponding parameters configuration.
7. method according to claim 6 is characterized in that:
Describedly judge whether described current power amplifier satisfies after the power amplifier protective condition, and described method also comprises:
If current power amplifier does not satisfy described power amplifier protective condition, then judge whether to satisfy the power amplifier protective condition that resets, if satisfy, then recover the raw parameter configuration of described power amplifier, if do not satisfy, then continue to judge whether current power amplifier satisfies the power amplifier protective condition.
8. according to claim 6 or 7 described methods, it is characterized in that:
Described corresponding relation and the protection thresholding that obtains current power amplifier power and compensation energy comprises:
Signal and feedback signal behind acquisition digital pre-distortion front signal, the digital pre-distortion are obtained described corresponding relation and described protection thresholding according to signal power and feedback signal power behind digital pre-distortion front signal power, the digital pre-distortion.
9. method according to claim 8 is characterized in that:
Described acquisition detection signal power comprises:
Obtain the arbitrary signal in the signal and feedback signal behind described digital pre-distortion front signal, the digital pre-distortion, the power of described signal is detection signal power.
10. method according to claim 6 is characterized in that:
Described acquisition detection signal power; from described internal memory, extract described corresponding relation and protection thresholding; and judge according to described detection signal power, described corresponding relation and described protection thresholding whether described current power amplifier satisfies the power amplifier protective condition; if satisfy; triggering selection power amplifier protected mode then; finish and this power amplifier protected mode corresponding parameters configuration, comprising:
Dispose the power output of current power amplifier less than rated power;
From described internal memory, extract described corresponding relation and protection thresholding;
Detect the power of digital pre-distortion front signal;
Judge that whether the offset of this power correspondence is greater than described protection thresholding, if greater than described protection thresholding, then reduce described power output, if smaller or equal to described protection thresholding, then judge whether to start automatic identification power adjustment protection, if do not start, judge then whether described power output reaches described rated power, if reach, then stop to adjust described power output, if do not reach, then increase described power output; Continue to detect the power of digital pre-distortion front signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454274.4A CN103188185B (en) | 2011-12-30 | 2011-12-30 | Power amplification protecting method and device in digital pre-distortion |
| PCT/CN2012/072382 WO2013097355A1 (en) | 2011-12-30 | 2012-03-15 | Method and device for power amplifier protection in digital predistortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454274.4A CN103188185B (en) | 2011-12-30 | 2011-12-30 | Power amplification protecting method and device in digital pre-distortion |
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| CN103188185A true CN103188185A (en) | 2013-07-03 |
| CN103188185B CN103188185B (en) | 2018-01-19 |
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| CN201110454274.4A Expired - Fee Related CN103188185B (en) | 2011-12-30 | 2011-12-30 | Power amplification protecting method and device in digital pre-distortion |
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| WO (1) | WO2013097355A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080566A1 (en) * | 2017-10-26 | 2019-05-02 | 京信通信系统（中国）有限公司 | Power amplifier protection method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104469614B (en) * | 2014-12-12 | 2018-01-09 | 广州市迪士普音响科技有限公司 | A kind of power amplifier failure self-repairing circuit and its implementation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7795968B1 (en) * | 2008-01-12 | 2010-09-14 | Peregrine Semiconductor Corporation | Power ranging transmit RF power amplifier |
| CN102082752B (en) * | 2010-02-25 | 2014-03-19 | 电信科学技术研究院 | Digital predistortion processing method and equipment |
| CN102111195B (en) * | 2010-12-29 | 2013-07-31 | 武汉邮电科学研究院 | Overpower protection method for power amplifiers of remote radio unit (RRU) system |
| CN102202022B (en) * | 2011-03-31 | 2014-02-05 | 京信通信系统（中国）有限公司 | Method and device for protecting power amplifier in DPD (Digital Pre-Distortion) system |
| CN102271425B (en) * | 2011-06-22 | 2017-07-14 | 南京中兴新软件有限责任公司 | A kind of method and apparatus for protecting power amplifier |
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2011
- 2011-12-30 CN CN201110454274.4A patent/CN103188185B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019080566A1 (en) * | 2017-10-26 | 2019-05-02 | 京信通信系统（中国）有限公司 | Power amplifier protection method and device |
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| WO2013097355A1 (en) | 2013-07-04 |
| CN103188185B (en) | 2018-01-19 |
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