CN103457557A - Power amplifier and control method thereof - Google Patents
Power amplifier and control method thereof Download PDFInfo
- Publication number
- CN103457557A CN103457557A CN2012101768527A CN201210176852A CN103457557A CN 103457557 A CN103457557 A CN 103457557A CN 2012101768527 A CN2012101768527 A CN 2012101768527A CN 201210176852 A CN201210176852 A CN 201210176852A CN 103457557 A CN103457557 A CN 103457557A
- Authority
- CN
- China
- Prior art keywords
- inter
- modulated signal
- threshold value
- power amplifier
- compensation circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The invention provides a power amplifier and a control method thereof, and relates to the field of electronics. According to the power amplifier and the control method thereof, the overall energy consumption of the power amplifier can be reduced. The control method of the power amplifier comprises the steps of obtaining an updating threshold value corresponding to the number of current carrier waves in preset threshold values according to the number of the current carrier waves, wherein the preset values are at least two in number; comparing the preset parameter value of an intermodulation signal and the updating threshold value, and controlling an intermodulation compensation circuit to be opened or closed according to the comparison result. The power amplifier and the control method thereof are used for the using of the power amplifier.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of power amplifier and control method thereof.
Background technology
Power amplifier, be 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, by numerous equipment vendors, is extensively adopted.Current multi-carrier power amplifier type mainly contains two kinds of forms: a kind of feed forward type power amplifier that is called as, the be known as power amplifier of Doherty-DPD (Doherty Digital Pre-DistortiON, many conspicuous digital pre-distortions of carrying) formula of another kind.In the feed forward type power amplifier, usually contain the intermodulation compensation circuit, amplify in order to compensation the crosstalk that multichannel RF (Radio Frequency, radio frequency) signal causes.The intermodulation compensation circuit is owing to containing the high power devices such as gain control, error power amplifier, and energy consumption level is higher, so the whole 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, can reduce the whole energy consumption of power amplifier.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, provide a kind of power amplifier control method, comprising:
According to the quantity of current carrier wave, obtain the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, described predetermined threshold value has two at least;
The preset parameter value of inter-modulated signal and described renewal threshold value are compared, control unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
On the one hand, provide a kind of power amplifier, comprising:
Updating block for the quantity according to current carrier wave, obtains the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, and described predetermined threshold value has two at least;
The first control unit, compare for the preset parameter value by inter-modulated signal and described renewal threshold value, controls unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
The embodiment of the present invention provides a kind of power amplifier and control method thereof, and described power amplifier comprises: according to the quantity of current carrier wave, obtain the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, described predetermined threshold value has two at least; The preset parameter value of inter-modulated signal and described renewal threshold value are compared, control unlatching and the shutoff of intermodulation compensation circuit according to comparative result.So, renewal threshold value in power amplifier can dynamically be adjusted according to the conversion of current number of carriers, relatively carry out the control of intermodulation compensation circuit by the preset parameter value by inter-modulated signal and described renewal threshold value, realized the Dynamic Matching of intermodulation compensation circuit to different carrier number and inter-modulated signal, reduce the power consumption of intermodulation compensation circuit, therefore reduced the whole energy consumption of power amplifier.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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.
Embodiment
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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of power amplifier control method, as shown in Figure 1, comprising:
S101, according to the quantity of current carrier wave, obtain the renewal threshold value corresponding with current number of carriers in predetermined threshold value, described predetermined threshold value has two at least.
S102, the preset parameter value of inter-modulated signal is compared with upgrading threshold value, control unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
So, renewal threshold value in power amplifier can dynamically be adjusted according to the conversion of current number of carriers, relatively carry out the control of intermodulation compensation circuit by the preset parameter value by inter-modulated signal and described renewal threshold value, realized the Dynamic Matching of intermodulation compensation circuit to different carrier number and inter-modulated signal, reduce the power consumption of intermodulation compensation circuit, therefore reduced the whole energy consumption of power amplifier.
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 can be also the inter-modulated signal quality, the inverse of the energy value that this inter-modulated signal quality is described inter-modulated signal, for the preset parameter value of different inter-modulated signal, upgrade selection and the described preset parameter value of threshold value and upgrade relatively can suitably adjusting of threshold value.
Exemplary, when described predetermined threshold value has two, be respectively first threshold and Second Threshold, when described first threshold is greater than described Second Threshold, step S101 can comprise: if the quantity of current carrier wave equals 1, select Second Threshold as upgrading threshold value; If the quantity of described current carrier wave is greater than 1, select first threshold as upgrading threshold value.When the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, step S102 can comprise: when the inter-modulated signal quality is less than the renewal threshold value, open the intermodulation compensation circuit; When the inter-modulated signal quality is more than or equal to described renewal threshold value, turn-off the intermodulation compensation circuit.The inter-modulated signal quality also can be regarded the reflection to the energy value size of inter-modulated signal as, the numerical value of inter-modulated signal quality is larger, the energy value that means this inter-modulated signal is less, the signal quality of inter-modulated signal is better, in embodiments of the present invention, the signal quality of inter-modulated signal is better, and above-mentioned intermodulation compensation circuit more easily turn-offs, thereby reaches the purpose of dynamic energy-saving.Further, if the quantity of current carrier wave equals at 1 o'clock, the renewal threshold value is Second Threshold, and this Second Threshold numerical value is lower, compares when upgrading threshold value and being first threshold, and the probability of closing of intermodulation compensation circuit increases relatively, and energy-conservation effect is more obvious.
It should be noted that, in the power amplifier use procedure, may have the test process of power amplifier, also can be called training process, this test process can be a stage of adaptive process, process of self-test or the modeling process of power amplifier.Example, when adopting fuzzy neural network to carry out modeling process to power amplifier, this Fuzzy Neural Networks process can be divided into two steps: the follow-up training adjustment of the foundation of initial model and model, i.e. test process.The test process of this Fuzzy Neural Networks process can be first input test signal, then detects the coherent signals such as output signal, so that adjust relevant parameter, progressively reduces the fuzzy output valve of system with the error between real output value.
Example, when there is test process in power amplifier, and the preset parameter value of inter-modulated signal is while being the inter-modulated signal quality, the power amplifier control method that the embodiment of the present invention provides as shown in Figure 2, specifically comprises:
S201, according to the quantity of current carrier wave, obtain the renewal threshold value corresponding with described current number of carriers in predetermined threshold value.Execution step S202.
For the power amplifier of multicarrier, intermodulation distortion mainly comprises secondary intermodulation signal and three intermodulation signals of multi-tone signal.Wherein, the component that the secondary intermodulation signal exists from the frequency band of fundamental frequency signal away from, usually can be by the mode filtering of filtering, but three intermodulation signals are because the frequency range with the original fundamental frequency signal is comparatively approaching, so need the intermodulation compensation circuit to be eliminated.For the power amplifier of single carrier, due to the generation that there is no the intercarrier inter-modulated signal, the intermodulation compensation circuit is not significantly effect often, therefore, when the carrier wave of power amplifier is single carrier, can turn-off the intermodulation compensation circuit.
Example, if the quantity of described current carrier wave equals 1, when current carrier wave is single carrier, can select described Second Threshold m as described renewal threshold value; If the quantity of described current carrier wave is greater than 1, when current carrier wave is multicarrier, select described first threshold n as described renewal threshold value, wherein m<n.
S202, judge whether the inter-modulated signal quality is more than or equal to the renewal threshold value.When the inter-modulated signal quality is more than or equal to described renewal threshold value, execution step S203, when the inter-modulated signal quality is less than described renewal threshold value, execution step S204.
Whether S203, detection power amplifier be in the protection period.If power amplifier is in the protection period, execution step S204, if power amplifier, not in the protection period, performs step S205.
Example, if power amplifier triggers test period, can make the intermodulation compensation circuit open in predetermined period, described predetermined period is more than or equal to described test period.Whether power amplifier can be to existing test signal checked; mean that when having test signal corresponding test period is triggered; usually this test period is the test signal duration; power amplifier in test process needs the intermodulation compensation circuit to open to protect normally carrying out of test; but the cycle difference due to different test signals; when the inter-modulated signal quality is more than or equal to the renewal threshold value, the duration that need at least keep the intermodulation compensation circuit to open equals corresponding test period.For a kind of power amplifier, usually there is multiple test signal, therefore can select the cycle the longest in each test period as predetermined period, example, if a kind of test period of power amplifier is respectively 2ms, 5ms...3ms etc., wherein 5ms is the longest cycle, can select 5ms as predetermined period.
It should be noted that, in the test signal of power amplifier, some test signals are periodic inputs, and as self-test signal, some test signals are acyclic inputs, as interim test signal.Therefore, there will be a test signal to input in the test period of another test signal, produce the not triggering in negative lap cycle, therefore corresponding predetermined period also occurs overlapping, in embodiments of the present invention, independent predetermined period can be called to the protection period, also overlapping predetermined period can be called to the protection period, example, set up time shaft as shown in Figure 3, suppose that predetermined period is 5ms, if test signal x inputs at 0ms, its test period is 4ms, test signal y inputs at 3ms, its test period is 3ms, for test signal x, the intermodulation compensation circuit should be opened at 0ms to 5ms, for test signal y, the intermodulation compensation circuit should be opened at 3ms to 8ms, test signal x, there is section overlapping time in the predetermined period of y, can be by time period A, be that 0ms to 8ms is as the protection period, to guarantee that each test period can normally carry out.
Especially; when the inter-modulated signal quality is more than or equal to described renewal threshold value; the time delay module that can open in the control module of controlling the intermodulation compensation circuit is opened the intermodulation compensation circuit within the protection period; this time delay module can be a delay protection circuit; can be delayer, the present invention limit this yet.
S204, open described intermodulation compensation circuit.
When the inter-modulated signal quality is less than the renewal threshold value, directly open described intermodulation compensation circuit.If power amplifier is in the protection period, the intermodulation compensation circuit is opened within the protection period, and after the protection period finishes, the intermodulation compensation circuit turn-offs.
S205, turn-off described intermodulation compensation circuit.
It should be noted that, in actual applications, the intermodulation compensation circuit can comprise: the device that inversely adds, attenuator, gain controller etc., turn-off the intermodulation compensation circuit and refer to gain controller, phase controller and the error power amplifier turn-offed in this intermodulation compensation circuit in the embodiment of the present invention.
It should be noted that, the sequencing of the power amplifier control method step that the embodiment of the present invention provides can suitably be adjusted, the quantity of step also can according to circumstances be carried out corresponding increase and decrease, anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, can expect easily the method changed, therefore repeat no more.
In the power amplifier control method provided in the embodiment of the present invention, renewal threshold value in power amplifier can dynamically be adjusted according to the conversion of current number of carriers, relatively carry out the control of intermodulation compensation circuit by the preset parameter value by inter-modulated signal and described renewal threshold value, realized the Dynamic Matching of intermodulation compensation circuit to different carrier number and inter-modulated signal, reduce the power consumption of intermodulation compensation circuit, therefore reduced the whole energy consumption of power amplifier.
The embodiment of the present invention provides a kind of power amplifier 40, as shown in Figure 4, comprising:
Updating block 402 for the quantity according to current carrier wave, obtains the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, and described predetermined threshold value has two at least.
The first control unit 403, compare for the preset parameter value by inter-modulated signal and described renewal threshold value, controls unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
As shown in the dotted line frame in Fig. 4, changing power amplifier 40 can also comprise:
It should be noted that, in actual applications, the intermodulation compensation circuit can comprise: the device that inversely adds, attenuator, gain controller etc., turn-off the intermodulation compensation circuit and refer to gain controller, phase controller and the error power amplifier turn-offed in this intermodulation compensation circuit in the embodiment of the present invention.
So, updating block makes the renewal threshold value in power amplifier dynamically to adjust according to the conversion of current number of carriers, the first control unit relatively carries out the control of intermodulation compensation circuit by the preset parameter value by inter-modulated signal and described renewal threshold value, realized the Dynamic Matching of intermodulation compensation circuit to different carrier number and inter-modulated signal, reduce the power consumption of intermodulation compensation circuit, therefore reduced the whole energy consumption of power amplifier.
Further, when described predetermined threshold value has two, be respectively first threshold and Second Threshold, when described first threshold is greater than described Second Threshold, described updating block 402 specifically for:
If the quantity of described current carrier wave equals 1, select described Second Threshold as described renewal threshold value; If the quantity of described current carrier wave is greater than 1, select described first threshold as described renewal threshold value.
When the preset parameter value of inter-modulated signal is the inter-modulated signal quality, described the first control unit 403 specifically for: when inter-modulated signal is more than or equal to described renewal threshold value, turn-off described intermodulation compensation circuit; When inter-modulated signal is less than described renewal threshold value, open described intermodulation compensation circuit, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal.
Especially, as shown in Figure 5, when the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, power amplifier 40 can also comprise: the second control unit 404, for when inter-modulated signal is more than or equal to described renewal threshold value, detect described power amplifier and whether trigger test period, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal; If described power amplifier triggers described test period, make described intermodulation compensation circuit open in predetermined period, described predetermined period is more than or equal to described test period.Example, this second control unit 404 can be that time delay module is opened the intermodulation compensation circuit in predetermined period, and this time delay module can be a delay protection circuit, can be also delayer, and the present invention does not limit this.
Especially, the corresponding steps in the power amplifier control method that the specific works step of the unit in the power amplifier provided in the embodiment of the present invention can provide with reference to the embodiment of the present invention, no longer describe in detail here.
In the several embodiment that provide in the application, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual the realization, other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as the separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed on a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit comprises, also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, the form that also can adopt hardware to add SFU software functional unit realizes.
The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the part steps of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, abbreviation ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (8)
1. a power amplifier control method, is characterized in that, comprising:
According to the quantity of current carrier wave, obtain the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, described predetermined threshold value has two at least;
The preset parameter value of inter-modulated signal and described renewal threshold value are compared, control unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
2. method according to claim 1, is characterized in that, when described predetermined threshold value has two, is respectively first threshold and Second Threshold, when described first threshold is greater than described Second Threshold,
The described quantity according to current carrier wave, obtain the renewal threshold value corresponding with described current number of carriers and comprise in predetermined threshold value:
If the quantity of described current carrier wave equals 1, select described Second Threshold as described renewal threshold value;
If the quantity of described current carrier wave is greater than 1, select described first threshold as described renewal threshold value.
3. method according to claim 2, it is characterized in that, when the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, described the preset parameter value of inter-modulated signal and described renewal threshold value are compared, unlatching and the shutoff of controlling the intermodulation compensation circuit according to comparative result comprise:
When described inter-modulated signal quality is less than described renewal threshold value, open described intermodulation compensation circuit, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal.
4. method according to claim 2, it is characterized in that, when the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, described the preset parameter value of inter-modulated signal and described renewal threshold value are compared, unlatching and the shutoff of controlling the intermodulation compensation circuit according to comparative result comprise:
When described inter-modulated signal quality is more than or equal to described renewal threshold value, detects described power amplifier and whether trigger test period, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal;
If described power amplifier triggers described test period, make described intermodulation compensation circuit open in predetermined period, described predetermined period is more than or equal to described test period.
5. a power amplifier, is characterized in that, described power amplifier comprises:
Updating block for the quantity according to current carrier wave, obtains the renewal threshold value corresponding with described current number of carriers in predetermined threshold value, and described predetermined threshold value has two at least;
The first control unit, compare for the preset parameter value by inter-modulated signal and described renewal threshold value, controls unlatching and the shutoff of intermodulation compensation circuit according to comparative result.
6. power amplifier according to claim 5, is characterized in that, when described predetermined threshold value has two, is respectively first threshold and Second Threshold, when described first threshold is greater than described Second Threshold,
Described updating block specifically for:
If the quantity of described current carrier wave equals 1, select described Second Threshold as described renewal threshold value;
If the quantity of described current carrier wave is greater than 1, select described first threshold as described renewal threshold value.
7. power amplifier according to claim 6, is characterized in that, when the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, described the first control unit specifically for:
When described inter-modulated signal quality is less than described renewal threshold value, open described intermodulation compensation circuit, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal.
8. power amplifier according to claim 6, is characterized in that, when the preset parameter value of described inter-modulated signal is the inter-modulated signal quality, described power amplifier also comprises: the second control unit, for:
When described inter-modulated signal quality is more than or equal to described renewal threshold value, detects described power amplifier and whether trigger test period, the inverse of the energy value that described inter-modulated signal quality is described inter-modulated signal;
If described power amplifier triggers described test period, make described intermodulation compensation circuit open in predetermined period, described predetermined period is more than or equal to described test period.
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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103457557A true CN103457557A (en) | 2013-12-18 |
| CN103457557B CN103457557B (en) | 2016-11-16 |
Family
ID=49672341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210176852.7A Active CN103457557B (en) | 2012-05-31 | 2012-05-31 | A kind of power amplifier and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103457557B (en) |
| WO (1) | WO2013177875A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120235A (en) * | 2018-07-27 | 2019-01-01 | 维沃移动通信有限公司 | A kind of method and user equipment of handoff gain |
Citations (5)
| 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 |
| US20040162097A1 (en) * | 2003-02-18 | 2004-08-19 | Rajiv Vijayan | Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
| CN1832355A (en) * | 2005-03-07 | 2006-09-13 | 富士通株式会社 | Distortion compensation apparatus |
| CN101489299A (en) * | 2009-02-26 | 2009-07-22 | 华为技术有限公司 | Base station carrier frequency power amplifier controlling method, apparatus and system |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2441271Y (en) * | 2000-07-25 | 2001-08-01 | 李基生 | Weighted visual frequency amplifier |
-
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 (5)
| 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 |
| US20040162097A1 (en) * | 2003-02-18 | 2004-08-19 | Rajiv Vijayan | Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
| CN1832355A (en) * | 2005-03-07 | 2006-09-13 | 富士通株式会社 | Distortion compensation apparatus |
| 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 |
| CN101489299A (en) * | 2009-02-26 | 2009-07-22 | 华为技术有限公司 | Base station carrier frequency power amplifier controlling method, apparatus and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120235A (en) * | 2018-07-27 | 2019-01-01 | 维沃移动通信有限公司 | A kind of method and user equipment of handoff gain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103457557B (en) | 2016-11-16 |
| WO2013177875A1 (en) | 2013-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11463048B2 (en) | Distributed feed-forward envelope tracking system | |
| US10790786B2 (en) | Distributed feed-forward envelope tracking system | |
| US9800274B2 (en) | Communication units and methods for power supply control | |
| CN102904532B (en) | Transmit circuit, regulate the method for bias and the method for adaptive bias information offer | |
| US20110161537A1 (en) | Method for generating electromagnetic waves using software | |
| CN111010091A (en) | Open-loop digital PWM envelope tracking system with dynamic boosting function | |
| US9594388B2 (en) | Digital shunt regulator for NFC devices | |
| CN104955080A (en) | Mobile terminal work mode control method and device as well as mobile terminal | |
| US20130015917A1 (en) | Distortion compensation apparatus, transmitter, and distortion compensation method | |
| KR101441650B1 (en) | Synchronously sampled single bit switch mode power supply | |
| CN105247827A (en) | Low power equalizer and its training | |
| CN105517128A (en) | Network switching method and device, and terminal | |
| CN105517083A (en) | Network switching method, device and terminal | |
| US8548402B2 (en) | Power amplification device and method for acquiring power adjusting coefficient | |
| CN105471395A (en) | Compression control adjusted through power amplifier load | |
| CN105049642A (en) | Volume adjustment method and device for prompt tone of mobile terminal | |
| US10627851B2 (en) | Reference clock signal generation method, memory storage device and connection interface unit | |
| CN105517122A (en) | Network switching method and apparatus, and terminal | |
| CN103457557A (en) | Power amplifier and control method thereof | |
| US10044257B1 (en) | Methods and apparatus to provide adaptive electromagnetic interference control in a power converter | |
| CN103518331A (en) | Transmitter and method for signal transmission | |
| CN102577112A (en) | Electronic device and integrated circuit comprising a gain control module and method therefor | |
| CN102685858A (en) | Radio frequency unit power consumption control method and station system | |
| CN105163570B (en) | Electromagnetism interference method and apparatus | |
| CN103729998A (en) | Decoding method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |