CN106937364A - A kind of radio-frequency bias voltage adjusting method, device, based band integrated circuit and mobile terminal - Google Patents
A kind of radio-frequency bias voltage adjusting method, device, based band integrated circuit and mobile terminal Download PDFInfo
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- CN106937364A CN106937364A CN201511019917.7A CN201511019917A CN106937364A CN 106937364 A CN106937364 A CN 106937364A CN 201511019917 A CN201511019917 A CN 201511019917A CN 106937364 A CN106937364 A CN 106937364A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention relates to mobile communication technology field, a kind of radio-frequency bias voltage adjusting method, device, based band integrated circuit and mobile terminal are disclosed.In the present invention, by the power output and bias voltage corresponding relation look-up table that obtain radio-frequency power amplifier；The power output and bias voltage corresponding relation look-up table are the look-up tables got in the case where predistortion function is opened；According to the power output of the radio-frequency power amplifier, from the power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；The bias voltage of the radio-frequency power amplifier is adjusted to the corresponding bias voltage of the acquisition.In the present invention, by being opened in predistortion function in the case of the look-up table that gets, the bias voltage to the radio-frequency power amplifier is adjusted so that the lower power consumption of the radio-frequency power amplifier, so as to reduce the power consumption of whole mobile terminal.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of radio-frequency bias voltage adjusting method,
Device, based band integrated circuit and mobile terminal.
Background technology
As mobile terminal function is more and more, performance is stronger and stronger, and its requirement to endurance is got over
Come higher, the use time after once charging, as the good and bad measurement index of mobile terminal.Due to movement
The portable characteristics of terminal so that the increase that the battery capacity that it is used can not possibly be infinitely great, and try to reduce
The power consumption of mobile terminal then turns into increases an important means of its use time.
The power consumption of radio-frequency front-end especially radio-frequency power amplifier (Power Amplifier, abbreviation PA)
Larger portion is occupied in mobile terminal power consumption.However, at the reducing power consumption of mobile terminal radio frequency front end
Reason, mainly reduces the power consumption of radio frequency PA.The more commonly used two schemes that have are at present：One kind is flat
Equal power detection voltage adjustment (Average Power Track, abbreviation APT), another kind is envelope inspection
Survey real-time voltage adjustment (Envelop Track, abbreviation ET)；The difference of two schemes is, averagely
Power detection is the big of the mean power of (such as one time slot or a subframe) in foundation certain time period
It is small, the bias voltage of PA is adjusted, within the time period, bias voltage keeps constant, different time sections
Interior mean power is different, then bias voltage is different；Envelope detected is then the realtime power exported according to PA,
The real-time continual adjustment for carrying out voltage, control voltage keeps one with the envelope waveform of PA output signals
Cause.
However, in the prior art average power detection in order to ensure the index of PA, bias voltage must be big
In the biasing that PA realtime powers largest portion needs, lower power consumption is limited；And envelope detected is due to PA
Bias voltage follows power output to change in real time, can farthest reduce power consumption, but envelope detected
Realize it is extremely complicated, it is necessary to the envelope variation of tracking radiofrequency signal in real time, and bias voltage need with
The input signal of PA keeps high level of synchronization, slightly deviation, then index is meeting serious distortion, in addition, together
The bias voltage of step needs specialist devices to produce, and because real-time change, its interference for producing or carrying
Or noise has a strong impact on RF index, it is often more important that with mobile communication by that can be exaggerated after PA
The bandwidth of terminal is more and more wider, its requirement more and more higher to bias voltage generator part, and synchronization is wanted
Also more and more higher is sought, the difficulty of debugging is increasing, stability is then worse and worse.
The content of the invention
It is an object of the invention to provide a kind of radio-frequency bias voltage adjusting method, device, the integrated electricity of base band
Road and mobile terminal so that radio-frequency power amplifier lower power consumption, so that mobile terminal power consumption reduction.
In order to solve the above technical problems, embodiments of the present invention are adjusted there is provided a kind of radio-frequency bias voltage
Method, comprises the steps of：
Obtain the power output and bias voltage corresponding relation look-up table of radio-frequency power amplifier；The output
Power and bias voltage corresponding relation look-up table are looking into of being got in the case where predistortion function is opened
Look for table；
It is corresponding with bias voltage from the power output according to the power output of the radio-frequency power amplifier
Relation look-up table obtains correspondence bias voltage；
The bias voltage of the radio-frequency power amplifier is adjusted to the corresponding bias voltage of the acquisition.
Embodiments of the present invention additionally provide a kind of radio-frequency bias voltage adjusting device, comprising：
Information acquisition unit, the power output pass corresponding with bias voltage for obtaining radio-frequency power amplifier
It is look-up table；The power output with bias voltage corresponding relation look-up table is opened in predistortion function
In the case of the look-up table that gets；
Bias voltage acquiring unit, for the power output according to the radio-frequency power amplifier, from described
Power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；
Voltage regulation unit, for the bias voltage of the radio-frequency power amplifier to be adjusted into the acquisition
Corresponding bias voltage.
Embodiments of the present invention additionally provide a kind of based band integrated circuit, comprising：Radio-frequency bias voltage is adjusted
Engagement positions；The device includes：
Information acquisition unit, the power output pass corresponding with bias voltage for obtaining radio-frequency power amplifier
It is look-up table；The power output with bias voltage corresponding relation look-up table is opened in predistortion function
In the case of the look-up table that gets；
Bias voltage acquiring unit, for the power output according to the radio-frequency power amplifier, from described
Power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；
Voltage regulation unit, for the bias voltage of the radio-frequency power amplifier to be adjusted into the acquisition
Corresponding bias voltage.
Embodiments of the present invention additionally provide a kind of mobile terminal, comprising：The integrated electricity of base band as described above
Road.
In terms of existing technologies, technical solution of the present invention is by predistortion work(for embodiment of the present invention
Under energy open mode, according to the power output of radio-frequency power amplifier, directly can be from the power output
Bias voltage corresponding with power output is got in bias voltage corresponding relation look-up table, the acquisition
Bias voltage is the corresponding minimum bias voltage in order of current radio frequency amplifier output power, so as to reduce radio frequency
The power consumption of power amplifier, also further reduces the power consumption of mobile terminal.
In addition, in predistortion function open mode, the radio-frequency power amplifier presses default output work
Rate launches radiofrequency signal；
According to the default power output, the bias voltage is adjusted；
Under conditions of linear index requirement is met, minimum bias voltage in order VCC` is obtained；
The default power output and minimum bias voltage in order VCC` storages are arrived into the output work
Rate and bias voltage corresponding relation look-up table.
Embodiment of the present invention in terms of existing technologies, in predistortion function beat by technical solution of the present invention
During open state, by default power output radiofrequency signal, obtain its corresponding minimum bias voltage in order and remember
Power and bias voltage corresponding relation look-up table are recorded, so as to the acquisition of subsequent offset voltage, so as to simplify
The acquisition flow of bias voltage.
In addition, in predistortion function closed mode, the radio-frequency power amplifier presses default output work
Rate launches radiofrequency signal；
According to the default power output, the bias voltage is adjusted；
Under conditions of linear index requirement is met, reference bias voltage VCC is obtained；It is described minimum inclined
Voltage VCC` is put less than the reference bias voltage VCC.
Embodiment of the present invention in terms of existing technologies, in predistortion function close by technical solution of the present invention
During closed state, by default power output radiofrequency signal, reference bias voltage VCC is obtained, so as to
It is whether accurate for judging the minimum bias voltage in order VCC` further in predistortion function open mode
Really, the acquisition accuracy of bias voltage is improved.
Brief description of the drawings
Fig. 1 is a kind of radio-frequency bias voltage adjusting method flow chart that first embodiment of the invention is provided；
Fig. 2 is that a kind of radio-frequency bias voltage adjusting device structure that second embodiment of the invention is provided is shown
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this hair
Bright each implementation method is explained in detail.However, it will be understood by those skilled in the art that
In each implementation method of the invention, in order that reader more fully understands the application and to propose many technologies thin
Section.But, even if many variations and modification without these ins and outs and based on following implementation method,
The application each claim technical scheme required for protection can also be realized.
First embodiment of the invention is related to a kind of radio-frequency bias voltage adjusting method.Idiographic flow is as schemed
Shown in 1.
Step 101, in predistortion function closed mode, the radio-frequency power amplifier is by default defeated
Go out power emission radiofrequency signal；
Step 102, according to the default power output, adjust the bias voltage so that described to penetrate
Adjacent channel leakage ratio (the Adjacent channel leakage ratio, letter of frequency power amplifier output signal
Claiming ACLR) index is without departing from given requirement；
Step 103, under conditions of linear index requirement is met, obtain reference bias voltage VCC；Need
It is noted that the correspondence pass of the corresponding reference bias voltage VCC of the default power output
It is as shown in the table：
| PA power outputs | PA reference bias voltages |
| P1 | VCC1 |
| P2 | VCC2 |
| P3 | VCC3 |
| … | … |
As shown above, default power output is that radio-frequency power amplifier PA power outputs are P1, then
The corresponding reference bias voltage that it is obtained is VCC1；Default power output is radio-frequency power amplifier PA
Power output is P2, then the corresponding reference bias voltage that it is obtained is VCC2, the like, herein not
Repeat again.
Step 104, in predistortion function open mode, the radio-frequency power amplifier is by default defeated
Go out power emission radiofrequency signal；In the case of predistortion function open mode, radio-frequency power amplifier PA
The radio-frequency power amplifier PA power outputs of power output and the predistortion function closed mode are identical
Under power output state, such as radio-frequency power amplifier PA power outputs are P1, and P2, P3 regulation are inclined
Voltage is put, it is P1 to obtain the radio-frequency power amplifier PA power outputs, and P2, P3 are corresponding minimum inclined
The specific acquisition process of voltage VCC1`, VCC2`, VCC3` is put referring to step 105- steps 106.
Step 105, according to the default power output, adjust the bias voltage；
Step 106, under conditions of linear index requirement is met, obtain minimum bias voltage in order VCC`；
Step 107, the default power output and the minimum bias voltage in order VCC` storages are arrived
The power output and bias voltage corresponding relation look-up table.The default power output is radio-frequency power
Amplifier PA power outputs.
Based on above step 104 to step 107；For example：It is defeated according to the radio-frequency power amplifier PA
Go out power for P1, bias voltage adjusted in predistortion function open mode so that output it is linear
ACLR indexs are met just without departing from given requirement, obtain minimum bias voltage in order VCC1`；It is described most
Small bias voltage VCC1` is VCC1 than the reference bias voltage obtained in predistortion function closed mode
It is small；When the radio-frequency power amplifier PA power outputs are P2, adjusted in predistortion function open mode
Whole bias voltage so that the linear ACLR indexs of output are met just without departing from given requirement, are obtained
Minimum bias voltage in order VCC2`；The minimum bias voltage in order VCC2` ratios are in predistortion function closed mode
When the reference bias voltage that obtains for VCC2 it is small, the like, here is omitted, specific output
Power is as shown in the table with bias voltage corresponding relation look-up table：
| PA power outputs | PA minimum bias voltage in order |
| P1 | VCC1` (is less than VCC1) |
| P2 | VCC2` (is less than VCC2) |
| P3 | VCC3` (is less than VCC3) |
| … | … |
It should be noted that, step 101 to step 107 is all to obtain the power output and bias voltage
Corresponding relation look-up table, so as to subsequent query.Searched in the power output and bias voltage corresponding relation
In table acquisition process, predistortion function module need to be first closed, export PA according to specification or demand a certain
Constant power is for example：P1, P2, P3, adjust bias voltage, obtain the PA power outputs P1,
P2, P3 correspondence reference bias voltage VCC1, VCC2, VCC3.The reference bias voltage VCC can
Thinking is ensuring the power output i.e. P1, P2, in the case that P3 is constant, PA output signals it is linear
Index is just without departing from the reference bias voltage of ACLR requirements.Then predistortion function module is opened again,
PA is set to export a certain constant power for example according to specification or demand：P1, P2, P3, adjust bias voltage,
Obtain corresponding minimum bias voltage in order VCC1`, VCC2`, VCC3`.The minimum bias voltage in order VCC`
Can be to ensure the power output i.e. P1, P2, in the case that P3 is constant, the line of PA output signals
Property index just without departing from ACLR requirement minimum bias voltage in order.
Because when power output is fixed, linear index is with bias voltage in inverse relationship, namely biased electrical
Pressure is higher, linearly can be better, otherwise linear then poorer.The power output and bias voltage are obtained herein
During corresponding relation look-up table in the case where default constant power meets linear index, first obtain
Reference bias voltage, then after predistortion function is opened, continues to adjust according to the default output work
Rate adjusts bias voltage, obtains the corresponding minimum bias voltage in order of the default power output.It is described default
Power output be the power output of radio frequency amplifier.Because predistortion function module can improve PA
It is linear, now linear index is relative is not switched on having certain improvement during predistortion function, so as to enter one
Bias voltage can be lower in successive step so that PA outputs remain to meet the linear index of needs, obtain institute
State power output and bias voltage corresponding relation look-up table.
Step 108, the power output and bias voltage corresponding relation look-up table that obtain radio-frequency power amplifier；
The power output with bias voltage corresponding relation look-up table is obtained in the case where predistortion function is opened
The look-up table got.
Step 109, the power output according to the radio-frequency power amplifier, from the power output with it is inclined
Put voltage corresponding relation look-up table and obtain correspondence bias voltage.
Step 110, the correspondence that the bias voltage of the radio-frequency power amplifier is adjusted into the acquisition are inclined
Put voltage.
Embodiment of the present invention in terms of existing technologies, is obtained under predistortion function open mode
Power and bias voltage mapping table, determine the minimum bias voltage in order of current radio frequency amplifier, so that
Obtain bias voltage of the power amplifier in the case of same power output and linear index lower so that work(
The power consumption of rate amplifier is smaller, while also further reducing the function of mobile terminal.At the same time, this hair
Bright technical scheme by default power output radio frequency also by predistortion function closed mode, being believed
Number, reference bias voltage VCC is obtained, to be further used for judging the minimum bias voltage in order VCC`
It is whether accurate, improve the acquisition accuracy of bias voltage.
The step of various methods are divided above, are intended merely to describe clear, and one can be merged into when realizing
Step splits to some steps, is decomposed into multiple steps, as long as comprising identical logical relation,
All in the protection domain of this patent；To adding inessential modification in algorithm or in flow or drawing
Enter inessential design, but do not change the core design of its algorithm and flow all in the protection model of the patent
In enclosing.
Second embodiment of the invention is related to a kind of radio-frequency bias voltage adjusting device, as shown in Fig. 2 bag
Contain：
Information acquisition unit 201, power output and bias voltage pair for obtaining radio-frequency power amplifier
Look-up table should be related to；The power output and bias voltage corresponding relation look-up table are beaten in predistortion function
The look-up table got in the case of opening；；
Bias voltage acquiring unit 202, for the power output according to the radio-frequency power amplifier, from
The power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；
Voltage regulation unit 203, for the bias voltage of the radio-frequency power amplifier to be adjusted into described
The corresponding bias voltage of acquisition.
It should be noted that the device also includes：
The device also includes：
Signal transmitter unit, in predistortion function open mode, the radio-frequency power amplifier to be pressed
Default power output launches radiofrequency signal；
The voltage regulation unit, is additionally operable to, according to the default power output, adjust the biased electrical
Pressure；
The bias voltage acquiring unit, is additionally operable under conditions of linear index requirement is met, and obtains most
Small bias voltage VCC`；
Memory cell, for the default power output and the minimum bias voltage in order VCC` to be deposited
Store up the power output and bias voltage corresponding relation look-up table.
Also, it should be noted that
The signal transmitter unit, is additionally operable in predistortion function closed mode, and the radio-frequency power is put
Big device launches radiofrequency signal by default power output；
The voltage regulation unit, is additionally operable to, according to the default power output, adjust the biased electrical
Pressure；
The bias voltage acquiring unit, is additionally operable under conditions of linear index requirement is met, and obtains ginseng
Examine bias voltage VCC；The minimum bias voltage in order VCC` is less than the reference bias voltage VCC.
It is seen that, present embodiment is the device embodiment corresponding with first embodiment, this implementation
Mode can work in coordination implementation with first embodiment.The relevant technical details mentioned in first embodiment
In the present embodiment still effectively, in order to reduce repetition, repeat no more here.Correspondingly, this implementation
The relevant technical details mentioned in mode are also applicable in first embodiment.
It is noted that each module involved in present embodiment is logic module, in reality
In, a logic unit can be a physical location, or one the one of physical location
Point, can also be realized with the combination of multiple physical locations.Additionally, in order to protrude innovative part of the invention,
Not by the list less close with technical problem relation proposed by the invention is solved in present embodiment
Unit introduces, but this is not intended that in present embodiment do not exist other units.
Third embodiment of the invention is related to a kind of based band integrated circuit.Radio-frequency bias in 3rd implementation method
The mode of voltage adjustment is identical with second embodiment, and main distinction part is：Second embodiment party
Radio-frequency bias voltage adjusting device is embedded in the based band integrated circuit in formula.
Because second embodiment is consistent with present embodiment, the correlation technique mentioned in second embodiment
Details is still effective in the present embodiment, and the technique effect to be reached in this second embodiment is at this
Similarly it is achieved that in order to reduce repetition, repeating no more here in implementation method.
Four embodiment of the invention is related to a kind of mobile terminal；In 4th implementation method based band integrated circuit
The mode of radio-frequency bias voltage adjustment is identical with the 3rd implementation method, and main distinction part is：Described
Radio-frequency bias voltage adjusting device is embedded in the mobile terminal in based band integrated circuit in three implementation methods.
Because the 3rd implementation method is consistent with present embodiment, the correlation technique mentioned in the 3rd implementation method
Details is still effective in the present embodiment, and the technique effect to be reached in the third embodiment is at this
Similarly it is achieved that in order to reduce repetition, repeating no more here in implementation method.
In terms of existing technologies, technical solution of the present invention is by by predistortion skill for embodiment of the present invention
Art is combined with the bias voltage of adjustment power amplifier, and power amplifier can be made to meet certain power
Linear index in the case of, consume lower power consumption.In the present invention, respectively by closing and opening pre- mistake
True state, the bias voltage to power amplifier is adjusted, and obtains the power output and bias voltage
Corresponding relation look-up table, when radio-frequency power amplifier works, uses the power output and bias voltage
Corresponding relation look-up table, the corresponding minimum bias voltage in order of determination power output, to obtain the radio-frequency power
Amplifier lowest power consumption, so as to reduce the power consumption of whole mobile terminal.
It will be understood by those skilled in the art that the respective embodiments described above be realize it is of the invention specific
Embodiment, and in actual applications, can to it, various changes can be made in the form and details, without inclined
From the spirit and scope of the present invention.
Claims (10)
1. a kind of radio-frequency bias voltage adjusting method, it is characterised in that include：
Obtain the power output and bias voltage corresponding relation look-up table of radio-frequency power amplifier；The output
Power and bias voltage corresponding relation look-up table are looking into of being got in the case where predistortion function is opened
Look for table；
It is corresponding with bias voltage from the power output according to the power output of the radio-frequency power amplifier
Relation look-up table obtains correspondence bias voltage；
The bias voltage of the radio-frequency power amplifier is adjusted to the corresponding bias voltage of the acquisition.
2. radio-frequency bias voltage adjusting method according to claim 1, it is characterised in that the party
Method also includes：
In predistortion function open mode, the radio-frequency power amplifier is launched by default power output
Radiofrequency signal；
According to the default power output, the bias voltage is adjusted；
Under conditions of linear index requirement is met, minimum bias voltage in order VCC` is obtained；
The default power output and minimum bias voltage in order VCC` storages are arrived into the output work
Rate and bias voltage corresponding relation look-up table.
3. radio-frequency bias voltage adjusting method according to claim 2, it is characterised in that the party
Method also includes：
In predistortion function closed mode, the radio-frequency power amplifier is launched by default power output
Radiofrequency signal；
According to the default power output, the bias voltage is adjusted；
Under conditions of linear index requirement is met, reference bias voltage VCC is obtained；It is described minimum inclined
Voltage VCC` is put less than the reference bias voltage VCC.
4. a kind of radio-frequency bias voltage adjusting device, it is characterised in that including：
Information acquisition unit, the power output pass corresponding with bias voltage for obtaining radio-frequency power amplifier
It is look-up table；The power output with bias voltage corresponding relation look-up table is opened in predistortion function
In the case of the look-up table that gets；
Bias voltage acquiring unit, for the power output according to the radio-frequency power amplifier, from described
Power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；
Voltage regulation unit, for the bias voltage of the radio-frequency power amplifier to be adjusted into the acquisition
Corresponding bias voltage.
5. radio-frequency bias voltage adjusting device according to claim 4, it is characterised in that the dress
Putting also includes：
Signal transmitter unit, in predistortion function open mode, the radio-frequency power amplifier to be pressed
Default power output launches radiofrequency signal；
The voltage regulation unit, is additionally operable to, according to the default power output, adjust the biased electrical
Pressure；
The bias voltage acquiring unit, is additionally operable under conditions of linear index requirement is met, and obtains most
Small bias voltage VCC`；
Memory cell, for the default power output and the minimum bias voltage in order VCC` to be deposited
Store up the power output and bias voltage corresponding relation look-up table.
6. radio-frequency bias voltage adjusting device according to claim 5, it is characterised in that
The signal transmitter unit, is additionally operable in predistortion function closed mode, and the radio-frequency power is put
Big device launches radiofrequency signal by default power output；
The voltage regulation unit, is additionally operable to, according to the default power output, adjust the biased electrical
Pressure；
The bias voltage acquiring unit, is additionally operable under conditions of linear index requirement is met, and obtains ginseng
Examine bias voltage VCC；The minimum bias voltage in order VCC` is less than the reference bias voltage VCC.
7. a kind of based band integrated circuit, it is characterised in that including：Radio-frequency bias voltage adjusting device；
The device includes：
Information acquisition unit, the power output pass corresponding with bias voltage for obtaining radio-frequency power amplifier
It is look-up table；The power output with bias voltage corresponding relation look-up table is opened in predistortion function
In the case of the look-up table that gets；
Bias voltage acquiring unit, for the power output according to the radio-frequency power amplifier, from described
Power output and the bias voltage corresponding relation look-up table corresponding bias voltage of acquisition；
Voltage regulation unit, for the bias voltage of the radio-frequency power amplifier to be adjusted into the acquisition
Corresponding bias voltage.
8. based band integrated circuit according to claim 7, it is characterised in that the radio-frequency bias
Voltage adjusting device also includes：
Signal transmitter unit, in predistortion function open mode, the radio-frequency power amplifier to be pressed
Default power output launches radiofrequency signal；
The voltage regulation unit, is additionally operable to, according to the default power output, adjust the biased electrical
Pressure；
The bias voltage acquiring unit, is additionally operable under conditions of linear index requirement is met, and obtains most
Small bias voltage VCC`；
Memory cell, is additionally operable to the default power output and the minimum bias voltage in order VCC`
Store the power output and bias voltage corresponding relation look-up table.
9. based band integrated circuit according to claim 8, it is characterised in that
The signal transmitter unit, in predistortion function closed mode, the radio-frequency power to amplify
Device launches radiofrequency signal by default power output；
The voltage regulation unit, for according to the default power output, adjusting the biased electrical
Pressure；
The bias voltage acquiring unit, under conditions of linear index requirement is met, obtaining reference
Bias voltage VCC；The minimum bias voltage in order VCC` is less than the reference bias voltage VCC.
10. a kind of mobile terminal, it is characterised in that including：Such as any one institute in claim 7 to 9
State based band integrated circuit.
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| CN108700859A (en) * | 2017-07-31 | 2018-10-23 | 深圳和而泰智能控制股份有限公司 | Human skin water oil analysis circuit and skin detection instrument |
| CN110958669A (en) * | 2018-09-27 | 2020-04-03 | 海能达通信股份有限公司 | Intelligent terminal and power control method thereof |
| WO2021093822A1 (en) * | 2019-11-15 | 2021-05-20 | 唯捷创芯(天津)电子技术股份有限公司 | Radio frequency power amplifier, chip, and communication terminal |
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| CN1870614A (en) * | 2005-05-27 | 2006-11-29 | 华为技术有限公司 | Universal device for predistortion processing base band digital signal |
| US20090052426A1 (en) * | 2006-03-15 | 2009-02-26 | Freescale Semiconductor, Inc. | Method and apparatus for enhanced data rate adaptation and lower power control in a wlan semiconductor chip |
| CN102231620A (en) * | 2010-09-06 | 2011-11-02 | 刘郁林 | Power amplifier linearization method and device based on baseband digital predistortion technology |
| CN102710223A (en) * | 2011-03-28 | 2012-10-03 | 英特尔移动通信有限公司 | Amplifier circuit, mobile communication device and method for adjusting a bias of a power amplifier |
| CN102904532A (en) * | 2011-07-27 | 2013-01-30 | 英特尔移动通信有限责任公司 | Transmit circuit, method for adjusting a bias of a power amplifier and method for adapting the provision of a bias information |
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| CN108700859A (en) * | 2017-07-31 | 2018-10-23 | 深圳和而泰智能控制股份有限公司 | Human skin water oil analysis circuit and skin detection instrument |
| CN110958669A (en) * | 2018-09-27 | 2020-04-03 | 海能达通信股份有限公司 | Intelligent terminal and power control method thereof |
| CN110958669B (en) * | 2018-09-27 | 2023-05-09 | 海能达通信股份有限公司 | Intelligent terminal and power control method thereof |
| WO2021093822A1 (en) * | 2019-11-15 | 2021-05-20 | 唯捷创芯(天津)电子技术股份有限公司 | Radio frequency power amplifier, chip, and communication terminal |
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