CN103457557B - A kind of power amplifier and control method thereof - Google Patents
A kind of power amplifier and control method thereof Download PDFInfo
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- CN103457557B CN103457557B CN201210176852.7A CN201210176852A CN103457557B CN 103457557 B CN103457557 B CN 103457557B CN 201210176852 A CN201210176852 A CN 201210176852A CN 103457557 B CN103457557 B CN 103457557B
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- 238000012360 testing method Methods 0.000 claims description 45
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000013528 artificial neural network Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/045—Circuits with power amplifiers with means for improving efficiency
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Abstract
The embodiment of the present invention provides a kind of power amplifier and control method thereof, relates to electronic applications, it is possible to reduce the overall energy consumption of power amplifier.Described power amplifier includes: according to the quantity of current carrier, obtains the renewal threshold value corresponding with described current carrier quantity, described predetermined threshold value at least two in predetermined threshold value；The preset parameter value of inter-modulated signal is compared with described renewal threshold value, controls being switched on and off of intermodulation compensation circuit according to comparative result.A kind of power amplifier of embodiment of the present invention offer and control method thereof, for the use of power amplifier.
Description
Technical field
The present invention relates to electronic applications, particularly relate to a kind of power amplifier and control method thereof.
Background technology
Power amplifier, is called for short power amplifier, is the important component part of base station in wireless communication system.
Multi-carrier power amplifier, as promoting base station ability, reduces the effective means of base station energy consumption, the most
Many equipment vendors are widely used.Current multi-carrier power amplifier type mainly has two kinds of forms: a kind of
Being referred to as feed forward type power amplifier, another kind is known as Doherty-DPD (Doherty Digital
Pre-DistortiON, many conspicuous carries digital pre-distortion) power amplifier of formula.In feed forward type power amplifier, generally
Containing intermodulation compensation circuit, in order to compensate amplification multichannel RF (Radio Frequency, radio frequency)
The crosstalk that signal causes.Intermodulation compensation circuit is due to containing gain control, error power amplifier etc.
High power device, energy consumption level is higher, and therefore the overall energy consumption of power amplifier is higher.
Summary of the invention
Embodiments of the invention provide a kind of power amplifier and control method thereof, it is possible to reduce merit
The overall energy consumption of rate amplifier.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, it is provided that a kind of power amplifier control method, including:
According to the quantity of current carrier, obtain and described current carrier quantity pair in predetermined threshold value
The renewal threshold value answered, described predetermined threshold value at least two；
The preset parameter value of inter-modulated signal is compared with described renewal threshold value, according to comparing knot
Fruit controls being switched on and off of intermodulation compensation circuit.
On the one hand, it is provided that a kind of power amplifier, including:
Updating block, for the quantity according to current carrier, obtains with described in predetermined threshold value
The renewal threshold value that current carrier quantity is corresponding, described predetermined threshold value at least two；
First control unit, for entering the preset parameter value of inter-modulated signal with described renewal threshold value
Row compares, and controls being switched on and off of intermodulation compensation circuit according to comparative result.
The embodiment of the present invention provides a kind of power amplifier and control method, described power amplification
Device includes: according to the quantity of current carrier, obtains and described current carrier number in predetermined threshold value
The renewal threshold value that amount is corresponding, described predetermined threshold value at least two；By the default ginseng of inter-modulated signal
Numerical value compares with described renewal threshold value, controls opening of intermodulation compensation circuit according to comparative result
Open and turn off.So, the renewal threshold value in power amplifier can be according to current carrier number
The conversion of amount dynamically adjusts, by by the preset parameter value of inter-modulated signal and described renewal threshold
Value relatively carries out the control of intermodulation compensation circuit, it is achieved that intermodulation compensation circuit is to different carrier
Number and the Dynamic Matching of inter-modulated signal, reduce the power consumption of intermodulation compensation circuit, therefore reduce
The overall energy consumption of power amplifier.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
A kind of power amplifier control method flow diagram that Fig. 1 provides for the embodiment of the present invention；
The another kind of power amplifier control method flow diagram that Fig. 2 provides for the embodiment of the present invention；
The protection period schematic diagram that Fig. 3 provides for the embodiment of the present invention；
A kind of power amplifier structure schematic diagram that Fig. 4 provides for the embodiment of the present invention；
The another kind of power amplifier structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
The embodiment of the present invention provides a kind of power amplifier control method, as it is shown in figure 1, include:
S101, quantity according to current carrier, obtain corresponding with current carrier quantity in predetermined threshold value
Update threshold value, described predetermined threshold value at least two.
S102, by the preset parameter value of inter-modulated signal with update threshold value compare, according to comparative result
Control being switched on and off of intermodulation compensation circuit.
So, the renewal threshold value in power amplifier can be according to the change of current carrier quantity
Swap-in Mobile state adjusts, by by the preset parameter value of inter-modulated signal with described renewal threshold ratio relatively
Carry out the control of intermodulation compensation circuit, it is achieved that intermodulation compensation circuit is to different carrier number and mutually
Adjust the Dynamic Matching of signal, reduce the power consumption of intermodulation compensation circuit, therefore reduce power and put
The overall energy consumption of big device.
It should be noted that the preset parameter value of above-mentioned inter-modulated signal can have multiple, example,
This preset parameter value can be the energy value of inter-modulated signal, it is also possible to be inter-modulated signal quality, should
Inter-modulated signal quality is the inverse of the energy value of described inter-modulated signal, for different inter-modulated signal
Preset parameter value, updating the selection of threshold value and described preset parameter value can with the comparison updating threshold value
Suitably to adjust.
Exemplary, when described predetermined threshold value has two, and respectively first threshold and Second Threshold, described
When first threshold is more than described Second Threshold, if step S101 may include that the quantity etc. of current carrier
In 1, select Second Threshold as updating threshold value；If the quantity of described current carrier is more than 1, select the
One threshold value is as updating threshold value.When the preset parameter value of described inter-modulated signal is inter-modulated signal quality,
Step S102 may include that when inter-modulated signal quality is less than updating threshold value, then open intermodulation compensation circuit；
When inter-modulated signal quality is more than or equal to described renewal threshold value, then turn off intermodulation compensation circuit.Inter-modulated signal
Quality can also regard the reflection of the energy value size to inter-modulated signal, the numerical value of inter-modulated signal quality as
The biggest, represent that the energy value of this inter-modulated signal is the least, the signal quality of inter-modulated signal is the best, in the present invention
In embodiment, the signal quality of inter-modulated signal is the best, and above-mentioned intermodulation compensation circuit the most easily turns off, thus
Reach the purpose of dynamic energy-saving.Further, if the quantity of current carrier is equal to 1, updating threshold value is
Second Threshold, this Second Threshold numerical value is relatively low, compares renewal threshold value when being first threshold, intermodulation compensation electricity
The closedown probability on road increases relatively, and energy-conservation effect becomes apparent from.
It should be noted that during power amplifier uses, it is understood that there may be the test of power amplifier
Process, it is also possible to be referred to as training process, this test process can be power amplifier adaptive process,
Process of self-test or a stage of modeling process.Example, when using fuzzy neural network to power amplification
When device is modeled process, this Fuzzy Neural Networks process is segmented into two steps: building of initial model
Vertical and model follow-up training adjusts, i.e. test process.The test of this Fuzzy Neural Networks process
Journey can be first input test signal, then detects the coherent signals such as output signal, in order to adjust corresponding
Parameter, progressively reduces the fuzzy output value of system with the error between real output value.
Example, when power amplifier exists test process, and the preset parameter value of inter-modulated signal is mutual
When adjusting signal quality, the power amplifier control method that the embodiment of the present invention provides, as in figure 2 it is shown,
Specifically include:
S201, quantity according to current carrier, obtain and described current carrier quantity pair in predetermined threshold value
The renewal threshold value answered.Perform step S202.
For the power amplifier of multicarrier, intermodulation distortion mainly includes the secondary intermodulation signal of multi-tone signal
With three intermodulation signals.Wherein, secondary intermodulation signal exist component from fundamental frequency signal frequency band farther out,
Generally can filter by the way of filtering, but three intermodulation signals are due to the frequency range with original fundamental frequency signal
It is closer to, it is therefore desirable to intermodulation compensation circuit eliminates.For the power amplifier of single carrier, by
In not having the generation of intercarrier inter-modulated signal, intermodulation compensation circuit the most significantly acts on, therefore,
When the carrier wave of power amplifier is single carrier, intermodulation compensation circuit can be turned off.
Example, if the quantity of described current carrier is equal to 1, when i.e. current carrier is single carrier, permissible
Select described Second Threshold m as described renewal threshold value；If the quantity of described current carrier is more than 1, i.e.
When current carrier is multicarrier, select described first threshold n as described renewal threshold value, wherein m ＜ n.
S202, judge that inter-modulated signal quality is whether more than or equal to updating threshold value.When inter-modulated signal quality is more than
Equal to described renewal threshold value, perform step S203, when inter-modulated signal quality is less than described renewal threshold value,
Perform step S204.
Whether S203, detection power amplifier are in the protection period.If power amplifier is in the protection period, hold
Row step S204, if power amplifier is not at the protection period, performs step S205.
Example, if power amplifier triggers test period, then intermodulation compensation circuit can be made in default week
Opening in phase, described predetermined period is more than or equal to described test period.Whether power amplifier can be to depositing
Checking at test signal, representing that corresponding test period is triggered when there is test signal, logical
Often this test period is for testing signal duration, and the power amplifier being in test process needs intermodulation to mend
Repay circuit unlatching and protect being normally carried out of test, but owing to the cycle of different test signals is different,
Inter-modulated signal quality, more than or equal to when updating threshold value, needs the duration at least keeping intermodulation compensation circuit to open
Equal to corresponding test period.For a kind of power amplifier, it is usually present multiple test signal, therefore
The cycle the longest in each test period can be selected as predetermined period, and example, if a kind of power is put
The test period of big device is respectively 2ms, 5ms...3ms etc., and wherein 5ms is the cycle grown most, then
5ms can be selected as predetermined period.
It should be noted that in the test signal of power amplifier, some test signals are the most defeated
Entering, such as self-test signal, some test signals are acyclic inputs, as tested signal temporarily.Therefore,
There will be a test signal to input in the test period of another test signal, produce not negative lap week
The triggering of phase, therefore also there is overlap in corresponding predetermined period, in embodiments of the present invention, can be by list
Only predetermined period is referred to as the protection period, it is also possible to overlapping predetermined period is referred to as the protection period, example,
Set up time shaft as shown in Figure 3, it is assumed that predetermined period is 5ms, if test signal x inputs at 0ms,
Its test period is 4ms, and test signal y inputs at 3ms, and its test period is 3ms, for test
Signal x, intermodulation compensation circuit should be opened at 0ms to 5ms, for test signal y, intermodulation compensation
Circuit should be opened at 3ms to 8ms, and the predetermined period of test signal x, y exists section overlapping time,
Can be by time period A, i.e. 0ms to 8ms as the protection period, to ensure that each test period can be just
Often carry out.
Particularly, when inter-modulated signal quality is more than or equal to described renewal threshold value, control intermodulation can be opened
The time delay module compensated in the control module of circuit makes intermodulation compensation circuit open within the protection period, and this prolongs
Time module can be a delay protection circuit, it is also possible to being chronotron, the present invention is without limitation.
S204, open described intermodulation compensation circuit.
When inter-modulated signal quality is less than when updating threshold value, directly open described intermodulation compensation circuit.If power
Amplifier is in the protection period, and intermodulation compensation circuit was opened within the protection period, and the protection period terminates rear intermodulation compensation
Circuit turns off.
S205, turn off described intermodulation compensation circuit.
It should be noted that in actual applications, intermodulation compensation circuit may include that the device that inversely adds,
Attenuator, gain controller etc., in the embodiment of the present invention, shutoff intermodulation compensation circuit refers to turn off and is somebody's turn to do
Gain controller, phase controller and error power amplifier in intermodulation compensation circuit.
It should be noted that the priority of the power amplifier control method step of embodiment of the present invention offer
Order can suitably adjust, and the quantity of step can also increase and decrease the most accordingly, any ripe
Know those skilled in the art in the technical scope that the invention discloses, the side of change can be readily occurred in
Method, therefore repeats no more.
In the power amplifier control method that the embodiment of the present invention provides, in power amplifier
Update threshold value dynamically to adjust according to the conversion of current carrier quantity, by intermodulation being believed
Number preset parameter value and described renewal threshold ratio relatively carry out the control of intermodulation compensation circuit, real
Show intermodulation compensation circuit to different carrier number and the Dynamic Matching of inter-modulated signal, reduce intermodulation
Compensate the power consumption of circuit, therefore reduce the overall energy consumption of power amplifier.
A kind of power amplifier 40 of embodiment of the present invention offer, as shown in Figure 4, including:
Updating block 402, for the quantity according to current carrier, obtains in predetermined threshold value and works as with described
The renewal threshold value that front number of carrier wave is corresponding, described predetermined threshold value at least two.
First control unit 403, for entering the preset parameter value of inter-modulated signal with described renewal threshold value
Row compares, and controls being switched on and off of intermodulation compensation circuit according to comparative result.
As shown in the dotted line frame in Fig. 4, changing power amplifier 40 can also include:
Intermodulation compensation circuit 401, amplifies, for compensating, the crosstalk that radiofrequency signal causes.
It should be noted that in actual applications, intermodulation compensation circuit may include that the device that inversely adds,
Attenuator, gain controller etc., in the embodiment of the present invention, shutoff intermodulation compensation circuit refers to turn off and is somebody's turn to do
Gain controller, phase controller and error power amplifier in intermodulation compensation circuit.
So, the renewal threshold value during updating block makes power amplifier can be according to working as front bearing
The conversion of wave number amount dynamically adjusts, and the first control unit is by by the parameter preset of inter-modulated signal
Value and described renewal threshold ratio relatively carry out the control of intermodulation compensation circuit, it is achieved that intermodulation compensation
Circuit, to different carrier number and the Dynamic Matching of inter-modulated signal, reduces the merit of intermodulation compensation circuit
Consumption, therefore reduces the overall energy consumption of power amplifier.
Further, when described predetermined threshold value has two, and respectively first threshold and Second Threshold, described
First threshold more than described Second Threshold time, described updating block 402 specifically for:
If the quantity of described current carrier is equal to 1, select described Second Threshold as described renewal threshold value；
If the quantity of described current carrier is more than 1, select described first threshold as described renewal threshold value.
When the preset parameter value of inter-modulated signal is inter-modulated signal quality, described first control unit
403 specifically for: when inter-modulated signal is more than or equal to described renewal threshold value, then turn off described intermodulation compensation electricity
Road；When inter-modulated signal is less than described renewal threshold value, then open described intermodulation compensation circuit, described intermodulation
Signal quality is the inverse of the energy value of described inter-modulated signal.
Particularly, as it is shown in figure 5, the preset parameter value working as described inter-modulated signal is inter-modulated signal matter
During amount, power amplifier 40 can also include: the second control unit 404, is used for when inter-modulated signal is big
When equal to described renewal threshold value, detect whether described power amplifier triggers test period, described mutually
The inverse of the energy value adjusting signal quality to be described inter-modulated signal；If described power amplifier triggers institute
Stating test period, then make described intermodulation compensation circuit open in predetermined period, described predetermined period is more than
Equal to described test period.Example, this second control unit 404 can be that time delay module is to make intermodulation
Compensating circuit to open in predetermined period, this time delay module can be a delay protection circuit, it is also possible to
Being chronotron, the present invention is without limitation.
Particularly, the specific works step of the unit in the power amplifier provided in the embodiment of the present invention
Suddenly the corresponding steps in the power amplifier control method that the embodiment of the present invention provides it is referred to, the most not
Describe in detail again.
In several embodiments provided herein, it should be understood that disclosed apparatus and method,
Can realize by another way.Such as, device embodiment described above is only schematically,
Such as, the division of described unit, it is only a kind of logic function and divides, actual can have additionally when realizing
Dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another system, or
Some features can be ignored, or does not performs.Another point, shown or discussed coupling each other or
Direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication link
Connect, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit
In, it is also possible to it is that the independent physics of unit includes, it is also possible to two or more unit are integrated in one
In individual unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ hardware adds
The form of SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer
In read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some fingers
Make with so that a computer equipment (can be personal computer, server, or the network equipment etc.)
Perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk,
Portable hard drive, read only memory (Read-Only Memory is called for short ROM), random access memory
Device (Random Access Memory is called for short RAM), magnetic disc or CD etc. are various can be stored
The medium of program code.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (6)
1. a power amplifier control method, it is characterised in that including:
According to the quantity of current carrier, obtain corresponding with described current carrier quantity in predetermined threshold value
Renewal threshold value, described predetermined threshold value at least two；
The preset parameter value of inter-modulated signal is compared, according to comparative result with described renewal threshold value
Control being switched on and off of intermodulation compensation circuit；
Wherein, when the preset parameter value of described inter-modulated signal is inter-modulated signal quality, described by mutually
The preset parameter value adjusting signal compares with described renewal threshold value, controls intermodulation according to comparative result
Compensate circuit be switched on and off include:
When described inter-modulated signal quality is more than or equal to described renewal threshold value, detect described power amplification
Whether device triggers test period, and described inter-modulated signal quality is falling of the energy value of described inter-modulated signal
Number；
If described power amplifier triggers described test period, then make described intermodulation compensation circuit in advance
If opening in the cycle, described predetermined period is more than or equal to described test period.
Method the most according to claim 1, it is characterised in that when described predetermined threshold value has two
Individual, respectively first threshold and Second Threshold, when described first threshold is more than described Second Threshold,
The described quantity according to current carrier, obtains and described current carrier quantity in predetermined threshold value
Corresponding renewal threshold value includes:
If the quantity of described current carrier is equal to 1, select described Second Threshold as described renewal threshold
Value；
If the quantity of described current carrier is more than 1, select described first threshold as described renewal threshold
Value.
Method the most according to claim 2, it is characterised in that pre-when described inter-modulated signal
When setting parameter value is inter-modulated signal quality, described by the preset parameter value of inter-modulated signal and described renewal
Threshold value compares, according to comparative result control intermodulation compensation circuit be switched on and off include:
When described inter-modulated signal quality is less than described renewal threshold value, then open described intermodulation compensation circuit,
Described inter-modulated signal quality is the inverse of the energy value of described inter-modulated signal.
4. a power amplifier, it is characterised in that described power amplifier includes:
Updating block, for the quantity according to current carrier, obtains in predetermined threshold value and works as with described
The renewal threshold value that front number of carrier wave is corresponding, described predetermined threshold value at least two；
First control unit, for carrying out the preset parameter value of inter-modulated signal with described renewal threshold value
Relatively, being switched on and off of intermodulation compensation circuit is controlled according to comparative result；
When the preset parameter value of described inter-modulated signal is inter-modulated signal quality, described power amplifier
Also include: the second control unit, be used for:
When described inter-modulated signal quality is more than or equal to described renewal threshold value, detect described power amplification
Whether device triggers test period, and described inter-modulated signal quality is falling of the energy value of described inter-modulated signal
Number；
If described power amplifier triggers described test period, then make described intermodulation compensation circuit in advance
If opening in the cycle, described predetermined period is more than or equal to described test period.
Power amplifier the most according to claim 4, it is characterised in that when described default threshold
Value has two, respectively first threshold and Second Threshold, and described first threshold is more than described second threshold
During value,
Described updating block specifically for:
If the quantity of described current carrier is equal to 1, select described Second Threshold as described renewal threshold
Value；
If the quantity of described current carrier is more than 1, select described first threshold as described renewal threshold
Value.
Power amplifier the most according to claim 5, it is characterised in that when described intermodulation is believed
Number preset parameter value when being inter-modulated signal quality, described first control unit specifically for:
When described inter-modulated signal quality is less than described renewal threshold value, then open described intermodulation compensation circuit,
Described inter-modulated signal quality is the inverse of the energy value of described inter-modulated signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176852.7A CN103457557B (en) | 2012-05-31 | 2012-05-31 | A kind of power amplifier and control method thereof |
| PCT/CN2012/081912 WO2013177875A1 (en) | 2012-05-31 | 2012-09-25 | Power amplifier and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176852.7A CN103457557B (en) | 2012-05-31 | 2012-05-31 | A kind of power amplifier and control method thereof |
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| CN103457557A CN103457557A (en) | 2013-12-18 |
| CN103457557B true CN103457557B (en) | 2016-11-16 |
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| CN109120235B (en) * | 2018-07-27 | 2022-04-22 | 维沃移动通信有限公司 | Gain switching method and user equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066942A (en) * | 1991-01-04 | 1992-12-09 | 莫托罗拉公司 | The method of optimizing performance of power amplifier circuit and device thereof |
| CN1832355A (en) * | 2005-03-07 | 2006-09-13 | 富士通株式会社 | Distortion compensation apparatus |
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|---|---|---|---|---|
| CN2441271Y (en) * | 2000-07-25 | 2001-08-01 | 李基生 | Weighted visual frequency amplifier |
| US8422434B2 (en) * | 2003-02-18 | 2013-04-16 | Qualcomm Incorporated | Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
| CN101557238A (en) * | 2008-04-07 | 2009-10-14 | 鼎桥通信技术有限公司 | Method, device and system for controlling power amplifier |
| CN101489299B (en) * | 2009-02-26 | 2012-05-02 | 华为技术有限公司 | Base station carrier frequency power amplifier controlling method, apparatus and system |
-
2012
- 2012-05-31 CN CN201210176852.7A patent/CN103457557B/en active Active
- 2012-09-25 WO PCT/CN2012/081912 patent/WO2013177875A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066942A (en) * | 1991-01-04 | 1992-12-09 | 莫托罗拉公司 | The method of optimizing performance of power amplifier circuit and device thereof |
| CN1832355A (en) * | 2005-03-07 | 2006-09-13 | 富士通株式会社 | Distortion compensation apparatus |
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| Publication number | Publication date |
|---|---|
| WO2013177875A1 (en) | 2013-12-05 |
| CN103457557A (en) | 2013-12-18 |
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