CN102570986B - Method and communication terminal for improving operating efficiency of power amplifier - Google Patents
Method and communication terminal for improving operating efficiency of power amplifier Download PDFInfo
- Publication number
- CN102570986B CN102570986B CN201110459262.0A CN201110459262A CN102570986B CN 102570986 B CN102570986 B CN 102570986B CN 201110459262 A CN201110459262 A CN 201110459262A CN 102570986 B CN102570986 B CN 102570986B
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- power
- voltage
- power amplifier
- efficiency
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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
- H03F3/20—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
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- 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
Abstract
The invention discloses a method and a communication terminal for improving the operating efficiency of a power amplifier. The method comprises the following steps: adding a DC/DC (direct current) chip in a communication terminal; carrying out testing and statistics on output power and efficiency data of the power amplifier under different operating voltage; according to the data, determining a corresponding relation between the output power and the operating voltage when the power amplifier is in optimum efficiency; storing data of the corresponding relation; and when the power amplifier is at a certain power level, invoking corresponding voltage data information under the power level in the corresponding relation, and controlling the DC/DC chip to output a corresponding voltage value. By using the method and the communications terminal disclosed by the invention, the operating efficiency of the power amplifier of the communication terminal can be improved to a greater degree, and the battery duration capability of the communication terminal is enhanced.
Description
Technical field
The present invention relates to communication technical field, more specifically, relate to a kind of method and the communication terminal that improve operating efficiency of power amplifier.
Background technology
Along with the development of modern communication technology, novel 3G (The 3rd Generation, third generation mechanics of communication) and the communication terminal of 4G (The 4td Generation forth generation mechanics of communication) constantly occur, modern communication product is towards miniaturization, portability, broadband future development, and more and more higher to the rate requirement transmitting data.Operator also provides more mobile service, attracts consumer as business such as multimedia, network game business.But carry out this type of business and can consume a large amount of electricity to terminal, the cruising time of battery will be shortened, badly influence the Consumer's Experience effect of product.
At present, in end product, battery occupies a big chunk in the volume and weight of whole mobile terminal, has had influence on the miniaturization of end product.Carrying out of new business can propose requirements at the higher level to the power supply capacity of terminal further, current battery technology do not have too large progress when, under the prerequisite not affecting user's use, how to extend the service time of battery, become the matter of utmost importance that current Terminal Design engineer faces.
In traditional circuit design, PA (Power Amalifier, power amplifier) operating voltage Vcc directly provided by PMIC (Power manage integrated circuit, power management chip), and operating voltage Vcc is a certain steady state value.Under normal circumstances, manufacturer can the efficient design of the peak power of PA to a relatively high level when designing PA.When exporting with peak power, the operating current of PA is very large, can reach 300 milliamperes even more, the efficiency therefore improving PA peak power can make PA save a lot of electricity when peak power works undoubtedly.But this design weak point is PA, and the power grade work limitation rate under other can be lower.According to statistics, when user's actual use communication terminal, the time of more than 90% is under PA is in middle low-power mode, and the power output of the better PA of signal is less.So from overall result of use, PA is in a desirable operating state, and the operating efficiency of PA is low, meaningless end cell energy ezpenditure can be increased, cause battery life to shorten, and terminal caloric value can be caused to increase, Consumer's Experience weak effect.
Summary of the invention
The present invention seeks to: overcome the defect that the efficiency power amplifier that exists in prior art is low, propose a kind of method and the communication terminal that improve the power efficiency of power amplifier.
The present invention proposes a kind of method improving communication terminal operating efficiency of power amplifier, increases DC/DC chip in communication terminal; Test and the power amplifier output power added up under different operating voltages and efficiency data; According to these data, when determining that power amplifier is operated in optimum efficiency, the corresponding relation of power output and operating voltage; The data of described corresponding relation are stored; When power amplifier is operated in some power grades, call voltage data information corresponding under this power grade in above-mentioned corresponding relation, control DC/DC chip exports corresponding magnitude of voltage.
Further, the described test data counted is simulated one group at power amplifier under different operating voltages, the homologous thread of power output and optimum efficiency, determine when power amplifier is operated in optimum efficiency by this curve, the corresponding relation between power output and operating voltage.
Further, described matching power output and optimum efficiency homologous thread refer to: power amplifier is within the scope of rated operational voltage, efficiency curve in whole Power Dynamic Range, count in the dynamic range of whole power with this, efficiency corresponding to each power points reaches voltage data during the best.
Further, reach best voltage data according to the corresponding efficiency of the power points of above-mentioned statistics, power amplifier output power when simulating an optimum working efficiency with probability statistics and the corresponding relation curve of operating voltage;
With the mapping table of described curve plotting power amplifier output power and operating voltage;
Power and voltage are compiled into corresponding data message, form the corresponding informance table of a voltage and power.
Further, described DC/DC chip is powered to power amplifier separately.
The present invention also proposes a kind of communication terminal, and described communication terminal comprises baseband chip, radio frequency chip, power amplifier, DC/DC chip and memory;
The control command that described baseband chip process receives, and can control the operating state of whole terminal;
Described radio frequency chip, can carry out solution mediation modulation to signal of communication;
Described power amplifier, can amplify the signal after radio frequency chip modulation;
Described DC/DC chip, can dynamical output is stable in corresponding scope voltage;
Described terminal memory, can store the corresponding informance table of a voltage and power, records when power amplifier is operated in optimum efficiency, the corresponding relation data of power output and operating voltage.
Further, the corresponding relation data of described power output and operating voltage obtain in the following way: test and the power amplifier output power added up under different operating voltages and efficiency data; According to these data, when determining that power amplifier is operated in optimum efficiency, the corresponding relation of power output and operating voltage.
Further, when described power amplifier is operated in some power grades, communication terminal calls voltage data information corresponding under this power grade in above-mentioned corresponding relation, and control DC/DC chip exports corresponding magnitude of voltage.
Further, the described test data counted is simulated one group at power amplifier under different operating voltages, the homologous thread of power output and optimum efficiency, determine when power amplifier is operated in optimum efficiency by this curve, the corresponding relation between power output and operating voltage.
Further, reach best voltage data according to the corresponding efficiency of the power points of above-mentioned statistics, power amplifier output power when simulating an optimum working efficiency with probability statistics and the corresponding relation curve of operating voltage;
With the mapping table of described curve plotting power amplifier output power and operating voltage;
Power and voltage are compiled into corresponding data message, form the corresponding informance table of described voltage and power.
In sum, the present invention is adopted to have following beneficial effect:
Compared with prior art, adopt method of the present invention and communication terminal, the operating efficiency of the power amplifier of communication terminal can be promoted largely, increase the battery durable ability of communication terminal.
Accompanying drawing explanation
Fig. 1 is prior art communication terminal composition schematic diagram;
Fig. 2 is prior art operating efficiency of power amplifier curve synoptic diagram;
Fig. 3 is embodiment of the present invention communication terminal composition schematic diagram;
Fig. 4 is that embodiment of the present invention operating efficiency of power amplifier improves method flow schematic diagram;
Fig. 5 is embodiment of the present invention operating efficiency of power amplifier curve synoptic diagram;
Fig. 6 is embodiment of the present invention power amplifier operating voltage, power output and corresponding stored information schematic diagram.
Embodiment
The present invention proposes a kind of method and the communication terminal that improve PA operating efficiency in communication terminal.Convenient in order to describe, first traditional terminal transmission circuit design schematic diagram is introduced, as shown in Figure 1, traditional terminal transmission circuit comprises BBIC chip (baseband chip), RFIC chip (radio frequency chip), PMIC chip (Power Management Unit), PA (power amplifier), Deplexer (duplexer) and ANT (antenna).
Terminal signal operationally first by BBIC chip signals such as the sound collected, image or data through sampling processing, convert digital baseband signal to, transfer to RFIC chip again, modulate in RFIC chip inside, modulates baseband signals is loaded in radiofrequency signal, by PA, radiofrequency signal is amplified to enough intensity again, after duplexer Deplexer filtering harmonic wave, then by antenna ANT, emission of radio frequency signals is gone out.Ensureing that the energy source that whole terminal system can normally work is PMIC chip, is that it provides the voltage separately required for normal work to BBIC chip, RFIC chip and PA.
In communication terminal circuit, PA is the device that a power consumption is very large, and limit due to technology, and PA operating efficiency is relatively all lower, and common peak efficiencies, all below 50%, therefore improves the operating efficiency of PA, and the power consumption reducing complete machine is highly significant.
In circuit design, the operating voltage Vcc of PA is directly provided by PMIC chip, when PA works, Vcc keeps certain value, so only when PA power output reaches peak power, PA efficiency just can reach best, and the operating efficiency of PA reduces rapidly when middle low-power operation, traditional efficiency curve as shown in Figure 2.Like this for communication terminal, the power consumption of complete machine is very large.
Please refer to shown in Fig. 3, it is embodiment of the present invention communication terminal composition schematic diagram, for the defect of traditional PA supply power mode, a DC/DC (direct current to direct current has been increased newly in circuit design, direct voltage conversion chip) voltage conversion chip powers to PA separately, replaces traditional by PMIC chip power supply pattern.PMIC chip is not directly for PA provides voltage, but be that PA powers via DC/DC chip, and enable by BBIC chip control DC/DC chip, the power output according to PA varies in size, dynamic conditioning output voltage Vcc, makes PA remain at best operating state.
Technical solution of the present invention can effectively improve PA be operated in middle low-power mode under operating efficiency, reduce the power consumption of terminal, extend the cruising time of end product battery, improve Consumer's Experience effect.
In this embodiment, described terminal is a kind of mobile broadband wireless end product.
This terminal baseband chip, can process the control command received, and can control the operating state of whole terminal.
This terminal radio frequency chip, for carrying out solution mediation modulation to signal of communication.
This terminal power amplifier, for amplifying the signal after radio frequency chip modulation, then is gone out by antenna transmission.
This terminal D C/DC chip, can dynamical output is stable in corresponding scope voltage.
This terminal memory, for depositing terminal software in the course of the work and data.
Please refer to shown in Fig. 4, it is the efficiency power amplifier raising method of embodiment of the present invention communication terminal, the method main thought is: the data of testing PA power output under different operating voltages and efficiency in advance, and these data need batch testing to add up, and as much as possiblely carries out data sampling.The test data counted is simulated one group at PA under different operating voltages, the homologous thread of power output and optimum efficiency.Can be determined when the optimum efficiency that PA is operated in by this curve, between power output and operating voltage, set up a kind of corresponding relation, and this corresponding data in the mode of look-up table stored in memory.When some power grades, voltage data information corresponding under calling this power grade, control DC/DC exports corresponding magnitude of voltage, ensures that PA reaches optimum state in whole function filter area internal efficiency.
Described method comprises the steps:
Step 401: improve traditional circuit, has increased a DC/DC chip newly in circuit design;
Described DC/DC chip is powered to PA separately, replaces traditional by PMIC chip power supply pattern.
Step 402: count in whole Power Dynamic Range, efficiency corresponding to each power points is to voltage data time best;
PA is within the scope of rated operational voltage Vcc (within the scope of such as 0.6-3.6V in test, step pitch is 0.2V), it is (such as-10dBm-28dBm in whole Power Dynamic Range, step pitch is 1dB) efficiency curve, count in the dynamic range of whole power with this, efficiency corresponding to each power points reaches voltage data during the best.
Step 403: the data of adding up according to step 402, PA power output when simulating an optimum working efficiency with probability statistics and the corresponding relation curve of operating voltage;
Described relation curve as shown in Figure 5.
Step 404: the mapping table producing a PA power output and operating voltage with described curve again;
And power and voltage are compiled into corresponding data message, the corresponding informance table of a voltage and power can be formed like this, be stored in memory, as shown in Figure 6.
Step 405: when BBIC chip calls power storage information, call corresponding information of voltage, control DC/DC chip, makes the output voltage of DC/DC chip adjust to desired voltage values simultaneously.
When the output voltage of DC/DC chip adjusts to desired voltage values, make PA be operated in optimum efficiency state, reduce PA power consumption.
When the actual use of user, because communication link must defer to the corresponding relation of uplink downlink symmetry, therefore along with the change of network environment, the downstream signal that terminal receives is also in change, and the ascending power that terminal exports can do corresponding adjustment in real time.Now, BBIC chip can also according to the signal condition of the downstream signal computing network received, calculate the required signal strength signal intensity exported of PA under this state, and call the power information required for PA stored in advance simultaneously, make the scope that PA power output reaches required; Call the DC/DC information of voltage that this power information is corresponding, adjustment DC/DC chip output voltage Vcc, makes PA meet and is operated in best efficient state simultaneously, thus reach reduction power consumption, extend end cell cruising time, reduce the heating of terminal, improve the experience of user.
Compared with prior art, the present invention can improve the operating efficiency of PA to greatest extent, in the effective cruising time extending product battery, reduces the heating problem of end product, improves the satisfaction of Consumer's Experience.
Certainly; the present invention also can have numerous embodiments; do not deviating from the situation of the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change or change according to the present invention; in every case done within the spirit and principles in the present invention any amendment, equivalent replacement, improvement, all should be included within protection scope of the present invention.
Claims (7)
1. improve a method for communication terminal operating efficiency of power amplifier, it is characterized in that, in communication terminal, increase DC/DC chip; Test and the power amplifier output power added up under different operating voltages and efficiency data; According to these data, when determining that power amplifier is operated in optimum efficiency, the corresponding relation of power output and operating voltage; The data of described corresponding relation are stored; When power amplifier is operated in some power grades, call voltage data information corresponding under this power grade in above-mentioned corresponding relation, control DC/DC chip exports corresponding magnitude of voltage;
The described test data counted is simulated one group at power amplifier under different operating voltages, the homologous thread of power output and optimum efficiency, determine when power amplifier is operated in optimum efficiency by this curve, the corresponding relation between power output and operating voltage.
2. the method for claim 1, it is characterized in that, described matching power output and optimum efficiency homologous thread refer to: power amplifier is within the scope of rated operational voltage, efficiency curve in whole Power Dynamic Range, count in the dynamic range of whole power with this, efficiency corresponding to each power points reaches voltage data during the best.
3. method as claimed in claim 2, it is characterized in that, best voltage data is reached, power amplifier output power when simulating an optimum working efficiency with probability statistics and the corresponding relation curve of operating voltage according to the corresponding efficiency of the power points of above-mentioned statistics;
With the mapping table of described curve plotting power amplifier output power and operating voltage;
Power and voltage are compiled into corresponding data message, form the corresponding informance table of a voltage and power.
4. the method for claim 1, is characterized in that, described DC/DC chip is powered to power amplifier separately.
5. a communication terminal, is characterized in that, described communication terminal comprises baseband chip, radio frequency chip, power amplifier, DC/DC chip and memory;
The control command that described baseband chip process receives, and can control the operating state of whole terminal;
Described radio frequency chip, can carry out solution mediation modulation to signal of communication;
Described power amplifier, can amplify the signal after radio frequency chip modulation;
Described DC/DC chip, can dynamical output is stable in corresponding scope voltage;
Described memory, can store the corresponding informance table of a voltage and power, records when power amplifier is operated in optimum efficiency, the corresponding relation data of power output and operating voltage;
The corresponding relation data of described power output and operating voltage obtain in the following way: test and the power amplifier output power added up under different operating voltages and efficiency data; According to these data, when determining that power amplifier is operated in optimum efficiency, the corresponding relation of power output and operating voltage;
The described test data counted is simulated one group at power amplifier under different operating voltages, the homologous thread of power output and optimum efficiency, determine when power amplifier is operated in optimum efficiency by this curve, the corresponding relation between power output and operating voltage.
6. communication terminal as claimed in claim 5, it is characterized in that, when described power amplifier is operated in some power grades, communication terminal calls voltage data information corresponding under this power grade in above-mentioned corresponding relation, and control DC/DC chip exports corresponding magnitude of voltage.
7. communication terminal as claimed in claim 5, it is characterized in that, best voltage data is reached, power amplifier output power when simulating an optimum working efficiency with probability statistics and the corresponding relation curve of operating voltage according to the corresponding efficiency of the power points of above-mentioned statistics;
With the mapping table of described curve plotting power amplifier output power and operating voltage;
Power and voltage are compiled into corresponding data message, form the corresponding informance table of described voltage and power.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459262.0A CN102570986B (en) | 2011-12-31 | 2011-12-31 | Method and communication terminal for improving operating efficiency of power amplifier |
| PCT/CN2012/074865 WO2012155786A1 (en) | 2011-12-31 | 2012-04-27 | Method for improving power amplifier working efficiency and communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459262.0A CN102570986B (en) | 2011-12-31 | 2011-12-31 | Method and communication terminal for improving operating efficiency of power amplifier |
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| Publication Number | Publication Date |
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| CN102570986A CN102570986A (en) | 2012-07-11 |
| CN102570986B true CN102570986B (en) | 2014-12-31 |
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| CN201110459262.0A Active CN102570986B (en) | 2011-12-31 | 2011-12-31 | Method and communication terminal for improving operating efficiency of power amplifier |
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| CN (1) | CN102570986B (en) |
| WO (1) | WO2012155786A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105190A (en) * | 2013-04-07 | 2014-10-15 | 深圳富泰宏精密工业有限公司 | Mobile phone transmission power back-off system and method |
| CN104703258B (en) * | 2013-12-06 | 2018-04-27 | 展讯通信（上海）有限公司 | User terminal and its method and device for reducing power consumption |
| CN107634725B (en) * | 2017-08-31 | 2021-09-10 | 深圳市远望谷信息技术股份有限公司 | Method and device for improving efficiency of power amplifier |
| CN108495362B (en) * | 2018-03-09 | 2021-06-01 | 广东小天才科技有限公司 | Signal transmission method and communication circuit |
| CN108390683B (en) * | 2018-03-22 | 2020-10-16 | 广东小天才科技有限公司 | Signal transmission method and signal transmission circuit |
| CN108541060B (en) * | 2018-04-11 | 2020-07-24 | Oppo广东移动通信有限公司 | Power supply method and device for radio frequency power amplifier, terminal and storage medium |
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| CN101454983A (en) * | 2006-05-22 | 2009-06-10 | 松下电器产业株式会社 | Transmission modulating device |
| CN101479932A (en) * | 2006-06-30 | 2009-07-08 | 诺基亚公司 | Method and apparatus for providing adaptive supply voltage control of a power amplifier |
| CN100594668C (en) * | 2004-12-28 | 2010-03-17 | 索尼爱立信移动通讯股份有限公司 | Intelligent RF power control for wireless modem devices |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7872527B2 (en) * | 2009-03-31 | 2011-01-18 | Qualcomm, Incorporated | Power supply control system and method with variable post-regulation |
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2011
- 2011-12-31 CN CN201110459262.0A patent/CN102570986B/en active Active
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- 2012-04-27 WO PCT/CN2012/074865 patent/WO2012155786A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100594668C (en) * | 2004-12-28 | 2010-03-17 | 索尼爱立信移动通讯股份有限公司 | Intelligent RF power control for wireless modem devices |
| CN101454983A (en) * | 2006-05-22 | 2009-06-10 | 松下电器产业株式会社 | Transmission modulating device |
| CN101479932A (en) * | 2006-06-30 | 2009-07-08 | 诺基亚公司 | Method and apparatus for providing adaptive supply voltage control of a power amplifier |
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| Publication number | Publication date |
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| CN102570986A (en) | 2012-07-11 |
| WO2012155786A1 (en) | 2012-11-22 |
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