CN107070486B - A kind of method and radio circuit of the supply voltage adjusting radio-frequency power amplifier - Google Patents
A kind of method and radio circuit of the supply voltage adjusting radio-frequency power amplifier Download PDFInfo
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- CN107070486B CN107070486B CN201710393122.5A CN201710393122A CN107070486B CN 107070486 B CN107070486 B CN 107070486B CN 201710393122 A CN201710393122 A CN 201710393122A CN 107070486 B CN107070486 B CN 107070486B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- 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
-
- 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
- H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- 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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Abstract
The present invention relates to mobile communication field, in particular to a kind of the method and radio circuit of the supply voltage for adjusting radio-frequency power amplifier cannot flexibly be adjusted the supply voltage of radio-frequency power amplifier to solve the problems, such as to exist in the prior art.The embodiment of the present invention exports radio-frequency front-end to the power of antenna with a coefficient of coup Coupled Feedback to radio frequency transceiver；According to the coupled power of feedback calculate destination channel on transmission power and with the power in the destination channel adjacent channel；Supply voltage according to the transmission power and with the difference adjustment radio-frequency power amplifier of the power in the destination channel adjacent channel.Since the embodiment of the present invention being capable of difference according to transmission power and with the power in destination channel adjacent channel, the supply voltage of radio-frequency power amplifier is neatly adjusted in real time, to which power consumption when radio-frequency power amplifier work be effectively reduced, extend the standby of mobile terminal and continuation of the journey duration.
Description
Technical field
The present invention relates to mobile communication field, in particular to a kind of method for the supply voltage for adjusting radio-frequency power amplifier
And radio circuit.
Background technique
With the development of mobile communication technology, mobile terminal is via original single call function to speech, data, figure
Picture, music and multimedia direction are comprehensive to be developed.Current mobile terminal is substantially segmented into two kinds: one is conventional terminals；
Another kind is intelligent terminal.Intelligent terminal has the basic function of conventional terminal, and has following characteristics: open operating system,
The expandability and the third-party secondary development of support of hardware and software.Relative to conventional terminal, intelligent terminal is powerful with its
It the features such as function and easily operation, increasingly gets the favour of people.
In all kinds of mobile terminals, radio circuit is essential pith, and effect is to complete the reception of wireless signal
And transmitting.The structure of the radio circuit in mobile terminal is as shown in Figure 1, include processor, radio frequency transceiver, radio-frequency power at present
Amplifier, the power supply module of radio-frequency power amplifier, radio-frequency front-end, antenna, these modules are connected by mutual signal,
Realize control, the signal transmission etc. of modules.The power consumption of radio circuit is an important portion in entire mobile terminal power consumption
Point, and radio circuit can also generate more heat transfer at work.Therefore, the power consumption for reducing radio circuit is moved for increasing
Terminal uses the time, and the temperature rise reduced when mobile terminal works has larger help.Wherein, the power consumption of radio circuit portion big absolutely
Divide and concentrates on radio-frequency power amplifier.
In the prior art by adjusting the supply voltage of the power supply module of radio-frequency power amplifier, radio frequency function is reduced to realize
The power consumption of rate amplifier, also, specific method is: before mobile terminal factory, for the radio circuit work of mobile terminal
Each standard and frequency range made, generate a pre-characterization table.With WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access) for B1, wherein APTCharV3rf_mode=" 9 " (defining working frequency range),
Device=" 0 " APTTable channel=" 9750 " (defining reference channel used in APT list), pa_state=" 1 "
(defining height gain-state locating for radio-frequency power amplifier), tx_purpose=" 0 " (voice or data pattern are defined,
In, 0 represents voice, and 1 represents data), the pre-characterization table of generation is as shown in table 1.
| APTRec pwr | vcc | icq |
| 26.21 | 3400 | 234 |
| 25.57 | 3400 | 234 |
| 24.71 | 3400 | 234 |
| 23.52 | 3400 | 234 |
| 22.24 | 3400 | 234 |
| 21.34 | 3400 | 234 |
| 20.4 | 3000 | 234 |
| 19.5 | 1850 | 234 |
| 18.54 | 1700 | 234 |
| 17.24 | 1500 | 234 |
| 15.77 | 1500 | 234 |
| 14.31 | 1200 | 234 |
| 13.45 | 1100 | 234 |
| 12.02 | 1050 | 234 |
| 10.66 | 1050 | 234 |
| 9.59 | 990 | 234 |
| 8.75 | 970 | 234 |
| 7.69 | 940 | 234 |
| 6.96 | 920 | 234 |
| 5.07 | 900 | 234 |
| 3.28 | 900 | 234 |
| 1.79 | 850 | 234 |
| 0.32 | 850 | 234 |
| -1.49 | 750 | 234 |
| -2.87 | 750 | 234 |
| -3.77 | 700 | 234 |
| -4.52 | 700 | 234 |
Table 1
Wherein, APTRec_pwr defines Anneta module output power, vcc defines the defeated of radio-frequency power amplifier power supply module
(wherein, vcc unit is V (volt) to supply voltage value out, and the value of vcc is the electricity after APT chip processing in table 1
Pressure value), icq define the quiescent point of radio-frequency power amplifier.Mobile terminal at work, calls working frequency range and standard pair
The pre-characterization table answered adjusts the supply voltage of radio-frequency power amplifier according to the output power of the Anneta module detected
The corresponding supply voltage of the output power in the pre-characterization table.But each system of the radio circuit of mobile terminal work
Formula and the corresponding pre-characterization table of frequency range are just to be written in mobile terminal before mobile terminal factory, if in pre-characterization table
Data there is deviation, it is impossible to carry out later period adjustment, and then in the mobile terminal course of work, radio frequency can not accurately be controlled
The supply voltage of power amplifier.Therefore, the method for the supply voltage of existing adjustment radio-frequency power amplifier is very not flexible.
In conclusion the method for adjusting the supply voltage of radio-frequency power amplifier in radio circuit at present, it cannot be flexible
The supply voltage of radio-frequency power amplifier is adjusted.
Summary of the invention
The present invention provides the method and radio circuit of a kind of supply voltage for adjusting radio-frequency power amplifier, existing to solve
There is the method that there is the supply voltage of radio-frequency power amplifier in adjustment radio circuit at present in technology, it cannot be flexibly to radio frequency
The problem of supply voltage of power amplifier is adjusted.
In a first aspect, the embodiment of the present invention provides a kind of supply voltage of radio-frequency power amplifier in adjustment radio circuit
Method, the radio circuit include sequentially connected radio frequency transceiver, radio-frequency power amplifier, radio-frequency front-end and antenna, packet
It includes:
Radio-frequency front-end is exported to the power of antenna with a coefficient of coup Coupled Feedback to radio frequency transceiver；
According to the coupled power of feedback calculate destination channel on transmission power and with the destination channel adjacent channel
On power；
Radio-frequency power is adjusted according to the transmission power and with the difference of the power in the destination channel adjacent channel
The supply voltage of amplifier.
On the other hand, the embodiment of the present invention also provides a kind of radio circuit, including sequentially connected radio frequency transceiver, radio frequency
Power amplifier, radio-frequency front-end and antenna, the radio-frequency front-end include power coupling module, for by radio-frequency front-end export to
The power of antenna is with a coefficient of coup Coupled Feedback to radio frequency transceiver；
The radio frequency transceiver includes:
Power computation module, for according to the coupled power of feedback calculate destination channel on transmission power and with it is described
Power in destination channel adjacent channel；
Voltage regulator module, for according to the transmission power and with the power in the destination channel adjacent channel
The supply voltage of difference adjustment radio-frequency power amplifier.
It is received since the embodiment of the present invention can be exported radio-frequency front-end to the Feedback of Power of antenna to radio frequency by coupler
Hair machine, radio frequency transceiver can calculate transmission power and and mesh in destination channel according to the coupled power of feedback in real time
Mark the power in channel adjacent channel, and the difference according to transmission power and with the power in destination channel adjacent channel, spirit
Ground living adjusts the supply voltage of radio-frequency power amplifier in real time.So as to avoid the supply voltage mistake of radio-frequency power amplifier
Power consumption when radio-frequency power amplifier work is effectively reduced in height, extends the standby of mobile terminal and continuation of the journey duration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of radio circuit in background technique；
Fig. 2 is the structural schematic diagram of the first radio circuit of the embodiment of the present invention；
Fig. 3 is the method flow diagram that the embodiment of the present invention adjusts the supply voltage of radio-frequency power amplifier in radio circuit；
Fig. 4 is that radio-frequency front-end of the embodiment of the present invention is exported to the schematic diagram of the power of antenna；
Fig. 5 is the schematic diagram that the embodiment of the present invention and radio-frequency front-end export the corresponding coupled power of power to antenna；
Fig. 6 A is the schematic diagram of the first coupled power of the embodiment of the present invention；
Fig. 6 B is the schematic diagram of second of coupled power of the embodiment of the present invention；
Fig. 6 C is the schematic diagram of the third coupled power of the embodiment of the present invention；
Fig. 7 is the bulk flow that the embodiment of the present invention adjusts the method for the supply voltage of radio-frequency power amplifier in radio circuit
Cheng Tu；
Fig. 8 is the structural schematic diagram of second of radio circuit of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Before the radio circuit of the embodiment of the present invention includes sequentially connected radio frequency transceiver, radio-frequency power amplifier, radio frequency
End and antenna；Radio-frequency front-end is exported to the power of antenna and is received with a coefficient of coup Coupled Feedback to radio frequency by the embodiment of the present invention
Hair machine；According to the coupled power of feedback calculate destination channel on transmission power and in the destination channel adjacent channel
Power；Amplify according to the transmission power and with the difference adjustment radio-frequency power of the power in the destination channel adjacent channel
The supply voltage of device.Since the embodiment of the present invention can be exported radio-frequency front-end to the Feedback of Power of antenna to penetrating by coupler
Frequency transceiver, radio frequency transceiver can in real time according to the coupled power of feedback calculate transmission power in destination channel and
With the power in destination channel adjacent channel, and the difference according to transmission power and with the power in destination channel adjacent channel
Value neatly adjusts the supply voltage of radio-frequency power amplifier in real time.
It should be noted that the method that the embodiment of the present invention adjusts the supply voltage of radio-frequency power amplifier in radio circuit
It is mainly used for reducing the power consumption of terminal.In the corresponding ACLR of radiofrequency signal (Adjacent Channel Leakage Power
Ratio, adjacent channel leakage power ratio) meet RF index performance under the premise of, reduce the supply voltage of radio-frequency power amplifier,
To reduce the power consumption of radio-frequency power amplifier, and then reduce the power consumption of entire terminal, can increase accordingly the standby of terminal and
Continuation of the journey duration.
Wherein, ACLR is the difference of the power in the transmission power and destination channel adjacent channel in destination channel.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
As shown in Fig. 2, radio circuit provided in an embodiment of the present invention includes sequentially connected processor 201, radio-frequency receiving-transmitting
Machine 202, radio-frequency power amplifier 203, radio-frequency front-end 204 and antenna 205.
It should be noted that the processor 201 in above-mentioned radio circuit may be located in radio frequency transceiver 202.
For radio circuit shown in Fig. 2, radio-frequency power amplifier in adjustment radio circuit provided in an embodiment of the present invention
Supply voltage method it is as shown in Figure 3, comprising:
Step 301 exports radio-frequency front-end to the power of antenna with a coefficient of coup Coupled Feedback to radio frequency transceiver；
Step 302, according to the coupled power of feedback calculate destination channel on transmission power and with the destination channel
Power in adjacent channel；
Step 303 is adjusted according to the transmission power and with the difference of the power in the destination channel adjacent channel
The supply voltage of radio-frequency power amplifier.
In step 301, the embodiment of the present invention is exported by the power coupling module in radio-frequency front-end, radio-frequency front-end to day
The power of line is coupled out a part with a coefficient of coup, and coupled power is fed back to radio frequency transceiver.
Specifically, the coupling output function of the power coupling module in radio-frequency front-end can (circuit power be examined by HDET
Survey) access realization.
Wherein, HDET access is connect with the directional coupler inside radio-frequency power amplifier, in coupled end by the power of PA
It is coupled out a part, this Partial Power being coupled out is passed through into control line between radio-frequency power amplifier and radio frequency transceiver and is transmitted
To radio frequency transceiver.
Radio-frequency front-end, which is exported to the power of antenna, to be generated by radio-frequency power amplifier, and wherein radio-frequency front-end is exported to day
The power of line is as shown in Figure 4, wherein horizontal axis is frequency (the corresponding different channel of different frequency), and the longitudinal axis is different frequency pair
The performance number answered.Radio-frequency front-end, which is exported into the power of antenna, contains the power that radiofrequency signal generates over multiple channels, tool
Body is the transmission power generated in destination channel, and the power generated in the adjacent channel of destination channel；Wherein, target
Channel is the channel of mobile terminal work at present.
For example, the Frequency point F in Fig. 4NFor the frequency of destination channel, and destination channel is mobile terminal work at present
Channel；FN-1、FN+1For the frequency of first side channel adjacent with destination channel；FN-2、FN+2It is adjacent with destination channel second
The frequency of side channel.
It should be noted that since the first side channel is corresponding, there are two frequencies, and the corresponding power of two frequencies is simultaneously
It is not necessarily identical, when determining the power on the first side channel, be using biggish power in the corresponding power of two frequencies as
Power on first side channel.Correspondingly, adopting the power determined on other side channels in a like fashion.
The coupled power that the embodiment of the present invention feeds back to radio frequency transceiver is to be exported radio-frequency front-end by directional coupler
Power to antenna carries out the coupled power that coupling output obtains with certain coefficient of coup.Assuming that transmission power is P dBm, and
And the coefficient of coup of coupler is k, then the coupled power obtained is P-k dBm.As shown in figure 5, to be defeated with radio-frequency front-end in Fig. 4
Out to the corresponding coupled power of the power of antenna.
In step 302, optionally, using following manner calculate destination channel on transmission power and with the target
Power in channel adjacent channel:
According to the frequency of destination channel, the coupling function in the destination channel is determined in the coupled power of the feedback
Rate；And the frequency according to the destination channel adjacent channel, the target letter is determined in the coupled power of the feedback
Coupled power in road adjacent channel；According to the coupled power on the coefficient of coup and the destination channel, the mesh is calculated
Mark the transmission power on channel；And according to the coupled power on the coefficient of coup and the destination channel adjacent channel, meter
Calculate the power in the destination channel adjacent channel.
Illustrate to calculate the method for the power in the transmission power and destination channel adjacent channel in destination channel separately below.
One, the transmission power in destination channel is calculated.
According to the frequency of destination channel, the coupling function in the destination channel is determined in the coupled power of the feedback
Rate；According to the coupled power on the coefficient of coup and the destination channel, the transmission power in the destination channel is calculated.
Specifically, by the sum of the coupled power on the coefficient of coup and the destination channel, as the destination channel
On transmission power.
Assuming that the coupled power coupled by directional coupler to the power that radio-frequency front-end is exported to antenna is such as
Shown in Fig. 6 A, the corresponding coupled power value of different frequency is indicated；Its abscissa is different frequency, and ordinate is corresponding for each frequency
Coupled power, the corresponding frequency of destination channel be FN, and F is determined from coupled power shown in 6ANCorresponding performance number is
P0, then the coupled power in destination channel is P0；Assuming that the coefficient of coup is k, then calculating the transmission power in destination channel is P0+
k。
Two, the power in destination channel adjacent channel is calculated.
The embodiment of the present invention can calculate adjacent with destination channel when calculating the power in destination channel adjacent channel
Power in one or more adjacent channels.
It is illustrated respectively below for the power on one and multiple adjacent channels.
1, it needs to be determined that going out the power in an adjacent channel adjacent with destination channel.
Correspondingly, if only calculating the power in a destination channel adjacent channel, it is adjacent according to a destination channel
The supply voltage of the difference adjustment radio-frequency power amplifier of power and transmission power on channel.
According to the frequency of the destination channel adjacent channel, the target letter is determined in the coupled power of the feedback
Coupled power in road adjacent channel；According to the coupled power on the coefficient of coup and the destination channel adjacent channel, meter
Calculate the power in the destination channel adjacent channel.
Specifically, by the sum of the coupled power on the coefficient of coup and the destination channel adjacent channel, as described
Power in destination channel adjacent channel.
Firstly, determining the frequency of a destination channel adjacent channel；
Optionally, the frequency of the first side channel of destination channel is chosen.
Then, the coupled power in the destination channel adjacent channel of the frequency is determined in the coupled power of feedback；
If it is determined that a destination channel adjacent channel frequency be destination channel the first side channel frequency, then from
The coupled power on the first side channel of destination channel is determined in the coupled power of feedback.
Finally, calculating destination channel adjacent channel according to the coupled power on the coefficient of coup and destination channel adjacent channel
On power；
If it is determined that a destination channel adjacent channel frequency be destination channel the first side channel frequency, then root
According to the coupled power on the first side channel of the coefficient of coup and destination channel, the power on the first side channel of destination channel is calculated.
Assuming that the coupled power coupled by directional coupler to the power that radio-frequency front-end is exported to antenna is such as
Shown in Fig. 6 B, the corresponding coupled power value of different frequency is indicated；Its abscissa is different frequency, and ordinate is corresponding for each frequency
Coupled power.It is illustrated for the coupled power shown in Fig. 6 B.Assuming that needing to calculate the first adjacent letter of destination channel
Power on road, and the frequency of the first side channel of destination channel is FN-1、FN+1；Then from coupled power shown in Fig. 6 B really
Determine FN-1Corresponding performance number is P1', FN+1Corresponding performance number is P1, and P1′>P1, then adjacent first side channel of destination channel
Corresponding coupled power be P1′；Assuming that the coefficient of coup is k, the then power on the first side channel of calculated destination channel
For P1′+k。
It should be noted that when calculating the power in an adjacent channel adjacent with destination channel, above-mentioned selection mesh
The mode for marking the first side channel of channel is to count to the embodiment of the present invention for example, the embodiment of the present invention can also be selected
Calculate the power on other side channels adjacent with destination channel.
2, it needs to be determined that going out the power in multiple adjacent channels adjacent with destination channel.
Correspondingly, calculating the power in multiple adjacent channels adjacent with destination channel, then according to each destination channel
The supply voltage of the difference adjustment radio-frequency power amplifier of power and transmission power in adjacent channel.
According to the frequency of multiple destination channel adjacent channels, each target is determined in the coupled power of the feedback
Coupled power in channel adjacent channel；According to the coupling function on the coefficient of coup and each destination channel adjacent channel
Rate calculates the power in each destination channel adjacent channel.
Below it needs to be determined that being illustrated for the power gone out in two adjacent channels adjacent with destination channel.
If the embodiment of the present invention is it needs to be determined that the of the power on the first side channel of destination channel and destination channel out
Power on two side channels.
Firstly, determining the frequency of the frequency of the first side channel of destination channel and the second side channel of destination channel；
Then, the coupled power and mesh on the first side channel of destination channel are determined in the coupled power of feedback
Mark the coupled power on the second side channel of channel；
Finally, determining destination channel according to the coupled power on the coefficient of coup and the first side channel of destination channel
Power on first side channel, and according to the coupled power on the coefficient of coup and the second side channel of destination channel, determine
Power on second side channel of destination channel.
Assuming that the coupled power coupled by directional coupler to the power that radio-frequency front-end is exported to antenna is such as
Shown in Fig. 6 C, the corresponding coupled power value of different frequency is indicated；Its abscissa is different frequency, and ordinate is corresponding for each frequency
Coupled power.It is illustrated for the coupled power shown in Fig. 6 C.Assuming that needing to calculate the first adjacent letter of destination channel
Power on road and the power on the second adjacent channel of destination channel, and the frequency of the first side channel of destination channel is
FN-1、FN+1, the frequency of the second side channel of destination channel is FN-2、FN+2；F is then determined from coupled power shown in Fig. 6 CN-1It is right
The performance number answered is P1', FN+1Corresponding performance number is P1, and P1′>P1, then the correspondence of adjacent first side channel of destination channel
Coupled power be P1′；And F is determined from coupled power shown in Fig. 6 CN-2Corresponding performance number is P2', FN+2Corresponding function
Rate value is P2, and P2′>P2, then the corresponding coupled power of adjacent second side channel of destination channel is P2′.Assuming that the coefficient of coup
For k, then the power on the first side channel of calculated destination channel is P1'+k, the adjacent letter of the second of calculated destination channel
Power on road is P2′+k。
It should be noted that the mode of the power on above-mentioned selection calculating two side channels adjacent with destination channel is
To the embodiment of the present invention it needs to be determined that go out the power in multiple adjacent channels adjacent with destination channel for example, the present invention
Embodiment is also an option that the power for calculating the side channel of more than two destination channels.
In addition, when calculating the power in two adjacent channels adjacent with destination channel, above-mentioned selection destination channel
The mode of first side channel and the second side channel is only to the embodiment of the present invention for example, the embodiment of the present invention can also be selected
Then calculate the power on other two side channels adjacent with destination channel.
It should be noted the power in the transmission power and destination channel adjacent channel in above-mentioned determining destination channel
Mode, it may be assumed that by the sum of the coupled power in the coefficient of coup and the destination channel, as the transmitting function in the destination channel
Rate, and by the sum of the coupled power in the coefficient of coup and the destination channel adjacent channel, it is adjacent as the destination channel
The mode of power on channel is transmission power and destination channel phase in a kind of determining destination channel of the embodiment of the present invention
The mode of power on side channel, the embodiment of the present invention can also be determined using other modes transmission power in destination channel and
Power in destination channel adjacent channel.For example, it is assumed that it is P that radio-frequency front-end, which is exported to the power of antenna, will be penetrated by coupler
Frequency front end exports to the power of antenna and couple the coupled power for exporting and obtaining with certain coefficient of coup k as P*k；Then logical
When overcoupling coefficient and coupled power determine the power in destination channel, be by the destination channel coupled power with couple
The ratio of coefficient, as the power in destination channel；It is determined on destination channel side channel by the coefficient of coup and coupled power
Power when, be by the ratio of coupled power and the coefficient of coup on the destination channel side channel, as destination channel neighbour believe
Power on road.
The embodiment of the present invention calculate destination channel on transmission power and destination channel adjacent channel on power after,
Calculate the difference of the power in the transmission power and destination channel adjacent channel in destination channel.
Wherein, when the power in destination channel adjacent channel has multiple, according to the transmission power calculated in destination channel
With the difference of the power in each destination channel adjacent channel.
For example, if the transmission power in destination channel is P0, power P on the first side channel of destination channel1'+k, target
Power P on second side channel of channel2′+k；Then the first ACLR is P0-(P1'+k), the 2nd ACLR is P0-(P2′+k)。
In step 303, the difference according to the transmission power and with the power in the destination channel adjacent channel
The supply voltage of radio-frequency power amplifier is adjusted, i.e., adjusts the supply voltage of radio-frequency power amplifier according to ACLR.
For the embodiment of the present invention when the channel adjacent with destination channel is one, calculating obtains the hair of a destination channel
Penetrate the difference of the power in power and destination channel adjacent channel, i.e. an ACLR.
Optionally, when the channel adjacent with destination channel is one, radio-frequency power amplifier is adjusted using following manner
Supply voltage:
If the difference is greater than preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
Wherein, which determined according to the remaining capacity of mobile terminal.
In addition, then increasing the supply voltage of radio-frequency power amplifier when difference is less than preset threshold；It is equal in difference pre-
If when threshold value, then keeping the supply voltage of radio-frequency power amplifier constant.
For the embodiment of the present invention when the channel adjacent with destination channel is multiple, calculating obtains the hair of multiple destination channels
Penetrate the difference of the power in power and destination channel adjacent channel, i.e., multiple ACLR.
Optionally, when the channel adjacent with destination channel is multiple, radio-frequency power amplifier is adjusted using following manner
Supply voltage:
If the difference of the power on the transmission power and each adjacent channel is all larger than preset threshold, radio frequency is reduced
The supply voltage of power amplifier.
It should be noted that when the channel adjacent with destination channel is multiple, each transmission power and adjacent letter
The difference of power on road corresponds to a preset threshold, in the channel difference adjacent with destination channel, transmission power and phase
The corresponding preset threshold of difference of power on adjacent channel is not also identical.Function in transmission power and each adjacent channel
After the difference of rate is all larger than its corresponding preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
Wherein, each transmission power preset threshold corresponding with the difference of power on adjacent channel is according to movement
What the remaining capacity of terminal determined.
If there is the difference of the power on multiple transmission powers and adjacent channel, preset threshold is corresponded to being less than there are difference
When, then increase the supply voltage of radio-frequency power amplifier；There are differences to be equal to corresponding preset threshold, and other differences are big
When corresponding preset threshold, then keep the supply voltage of radio-frequency power amplifier constant；Correspondence is equal in multiple difference
Preset threshold when, then keep the supply voltage of radio-frequency power amplifier constant.
Transmission power below for different numbers and the difference of the power on adjacent channel are illustrated respectively, and
The difference of the power in transmission power and adjacent channel is hereinafter known as ACLR:
1, when there is an ACLR, judge the size of ACLR and preset threshold, when determining that ACLR is greater than preset threshold, drop
The supply voltage of low radio frequency power amplifier.
In addition, increasing the supply voltage of radio-frequency power amplifier when determining that ACLR is less than preset threshold；Determining ACLR
When equal to preset threshold, keep the supply voltage of radio-frequency power amplifier constant.
Wherein, preset threshold is determined jointly by two parameters, one of them is the standard value of ACLR, and one is surplus；It will
The standard value of ACLR and the sum of surplus are as preset threshold.And the standard value of ACLR be it is preset, surplus is according to end
What the remaining capacity at end determined.
It should be noted that ACLR is to measure mobile phone to the performance indicator of the interference of adjacent channel；The standard value of ACLR is
As defined in 3GPP (3rd Generation Partnership Project, third generation partner program) agreement.?
In 3GPP agreement, the standard value of an ACLR is provided for each side channel of destination channel, on the side channel of test
When ACLR is greater than the standard value of corresponding ACLR, meet the regulation of 3GPP agreement.For example, in a wcdma system, it is assumed that target letter
Road frequency is fnMHz, 3GPP agreement regulation, frequency fn+5MHz、fnThe standard of the corresponding ACLR of the first side channel of -5MHz
Value is 33dB；Frequency is fn+10MHz、fnThe standard value of the corresponding ACLR of the second side channel of -10MHz is 43dB.
For example, if ACLR is the power on the first side channel according to transmission power and destination channel in destination channel
Difference, then the standard value of ACLR can be 33dB.
If the remaining capacity of terminal is sufficient, surplus can be 6dB；Then preset threshold is 39dB.It is big in the ACLR determined
When 39dB, then the supply voltage of radio-frequency power amplifier is reduced；When the ACLR determined is less than 39dB, then increase radio frequency function
The supply voltage of rate amplifier；When the ACLR determined is equal to 39dB, then the supply voltage of radio-frequency power amplifier is kept not
Become.
If the remaining capacity of terminal is less, surplus can be 3dB；Then preset threshold is 36dB.It is big in the ACLR determined
When 36dB, then the supply voltage of radio-frequency power amplifier is reduced；When the ACLR determined is less than 36dB, then increase radio frequency function
The supply voltage of rate amplifier；When the ACLR determined is equal to 36dB, then the supply voltage of radio-frequency power amplifier is kept not
Become.
2, when there are multiple ACLR, judge the size of each ACLR with corresponding preset threshold, determining that all ACLR are equal
When greater than corresponding preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
In addition, increasing the supply voltage of radio-frequency power amplifier when determining that there are ACLR less than corresponding preset threshold；
When there are ACLR to be equal to corresponding preset threshold, and other ACLR are all larger than corresponding preset threshold or multiple ACLR
When being equal to corresponding preset threshold, then keep the supply voltage of radio-frequency power amplifier constant.
Wherein, the corresponding preset threshold of ACLR is determined jointly by two parameters, one of them is the standard value of ACLR, one
It is surplus；Using the standard value of ACLR preset threshold corresponding as ACLR with the sum of surplus.And the standard value of each ACLR
Be it is preset, surplus be according to the remaining capacity of terminal determine.
For example, if there are two ACLR, respectively the first ACLR and the 2nd ACLR；Wherein the first ACLR is the hair of destination channel
The difference of power and the power on the first side channel of destination channel is penetrated, the 2nd ACLR is the transmission power and target of destination channel
The difference of power on second side channel of channel.And the standard value of the first ACLR is 33dB, and the 2nd ACLR standard value is
43dB；
If the remaining capacity of terminal is sufficient, surplus can be 6dB；Then the corresponding preset threshold of the first ACLR is 39dB, the
The corresponding preset threshold of two ACLR is 49dB.It is greater than 38dB in the first ACLR determined and the 2nd ACLR determined is greater than
When 49dB, then the supply voltage of radio-frequency power amplifier is reduced；It is less than 39dB in the first ACLR determined, and/or determines
The 2nd ACLR be less than 49dB when, then increase the supply voltage of radio-frequency power amplifier；It is equal in the first ACLR determined
39dB and the 2nd ACLR determined are greater than 49dB, or the 2nd ACLR etc. that the first ACLR determined is greater than 39dB and determines
In 49dB, or the first ACLR that determines is equal to 39dB and when the 2nd ACLR determined is equal to 49dB, and radio-frequency power is kept to put
The supply voltage of big device is constant.
If the remaining capacity of terminal is less, surplus can be 3dB；Then the corresponding preset threshold of the first ACLR is 36dB, the
The corresponding preset threshold of two ACLR is 46dB.It is greater than 36dB in the first ACLR determined and the 2nd ACLR determined is greater than
When 46dB, then the supply voltage of radio-frequency power amplifier is reduced；It is less than 36dB in the first ACLR determined, and/or determines
The 2nd ACLR be less than 46dB when, then increase the supply voltage of radio-frequency power amplifier；It is equal in the first ACLR determined
36dB and the 2nd ACLR determined are greater than 46dB, or the 2nd ACLR etc. that the first ACLR determined is greater than 36dB and determines
In 46dB, or the first ACLR that determines is equal to 36dB and when the 2nd ACLR determined is equal to 46dB, and radio-frequency power is kept to put
The supply voltage of big device is constant.
Illustrate the overall flow for the supply voltage for adjusting RF radio frequency power amplifier with a specific embodiment below.
Specific embodiment:
Assuming that it needs to be determined that the power on two side channels of destination channel out.
As shown in fig. 7, the embodiment of the present invention adjusts the method packet of the supply voltage of radio-frequency power amplifier in radio circuit
It includes:
Step 701 exports radio-frequency front-end to the power of antenna with a coefficient of coup Coupled Feedback to radio frequency transceiver；
Step 702, the frequency according to destination channel, are determined in the coupled power of the feedback in the destination channel
Coupled power；
Step 703, by the coupled power and the sum of the coefficient of coup in destination channel, as the transmitting function in destination channel
Rate；
Step 704, the frequency according to the first side channel of destination channel, determine in the coupled power of the feedback
Coupled power on one side channel；And the frequency of the second side channel according to destination channel, in the coupled power of the feedback
In determine coupled power on the second side channel；
Step 705, by the coupled power and the sum of the coefficient of coup on the first side channel, as the function on the first side channel
Rate；And by the coupled power and the sum of the coefficient of coup on the second side channel, as the power on the second side channel；
Step 706, by destination channel transmission power and the first side channel on power difference, as first
ACLR；And by by destination channel transmission power and the second side channel on power difference, as the 2nd ACLR；
Step 707 judges whether the first ACLR and the 2nd ACLR are all larger than corresponding preset threshold；If so, executing step
708, if it is not, executing step 709；
Step 708, the supply voltage for reducing radio-frequency power amplifier；
Step 709 judges whether the first ACLR and/or the 2nd ACLR are less than corresponding preset threshold；If so, executing step
710, if it is not, executing step 711；
Step 710, the supply voltage for increasing radio-frequency power amplifier；
Step 711 keeps the supply voltage of radio-frequency power amplifier constant.
Based on the same inventive concept, a kind of radio circuit is additionally provided in the embodiment of the present invention, due to the radio circuit solution
The certainly principle of problem and the method provided in an embodiment of the present invention for adjusting the supply voltage of radio-frequency power amplifier in radio circuit
It is similar, therefore the implementation of radio circuit may refer to the implementation of method, overlaps will not be repeated.
Radio circuit as shown in Figure 8, including sequentially connected processor 201, radio frequency transceiver 202, radio-frequency power are put
Big device 203, radio-frequency front-end 204 and antenna 205；
Wherein, radio-frequency front-end 204 includes power coupling module 2041；
Power coupling module 2041, for exporting radio-frequency front-end to the power of antenna with a coefficient of coup Coupled Feedback extremely
Radio frequency transceiver；
Radio frequency transceiver 202 includes power computation module 2021；
Power computation module 2021, for according to the coupled power of feedback calculate destination channel on transmission power and with
Power in the destination channel adjacent channel；
Processor 201 includes voltage regulator module 2011；
Voltage regulator module 2011, for according to the transmission power and with the function in the destination channel adjacent channel
The supply voltage of the difference adjustment radio-frequency power amplifier of rate.
Optionally, the power computation module 2021 is specifically used for the frequency according to destination channel, in the coupling of the feedback
Close the coupled power determined in the destination channel in power；And the frequency according to the destination channel adjacent channel,
The coupled power in the destination channel adjacent channel is determined in the coupled power of the feedback；According to the coefficient of coup and
Coupled power in the destination channel calculates the transmission power in the destination channel；And according to the coefficient of coup and
Coupled power in the destination channel adjacent channel calculates the power in the destination channel adjacent channel.
Optionally, the power computation module 2021 is specifically used for the coupling on the coefficient of coup and the destination channel
The sum of power is closed, as the transmission power in the destination channel；By the coefficient of coup and the destination channel adjacent channel
On the sum of coupled power, as the power in the destination channel adjacent channel.
Optionally, the voltage regulator module 2011 be specifically used for the transmission power and with the destination channel phase
When the difference of power on side channel is greater than preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
Optionally, when the channel adjacent with the destination channel is multiple, the voltage regulator module 2011 is specifically used
In when the transmission power is all larger than corresponding preset threshold with the difference of the power on each adjacent channel, radio frequency is reduced
The supply voltage of power amplifier.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. the method for the supply voltage of radio-frequency power amplifier, the radio circuit include successively connecting in a kind of adjustment radio circuit
Radio frequency transceiver, radio-frequency power amplifier, radio-frequency front-end and the antenna connect, which is characterized in that this method comprises:
Radio-frequency front-end is exported to the power of antenna with a coefficient of coup Coupled Feedback to radio frequency transceiver；
According to the frequency of destination channel, the coupled power in the destination channel is determined in the coupled power of the feedback；
And the frequency according to the destination channel adjacent channel, the destination channel phase is determined in the coupled power of the feedback
Coupled power on side channel；According to the coupled power on the coefficient of coup and the destination channel, the target letter is calculated
Transmission power on road；And according to the coupled power on the coefficient of coup and the destination channel adjacent channel, calculate institute
State the power in destination channel adjacent channel；
Amplify according to the transmission power and with the difference adjustment radio-frequency power of the power in the destination channel adjacent channel
The supply voltage of device.
2. the method as described in claim 1, which is characterized in that described according on the coefficient of coup and the destination channel
Coupled power calculates the transmission power in the destination channel, comprising:
By the sum of the coupled power on the coefficient of coup and the destination channel, as the transmitting function in the destination channel
Rate；
The coupled power according on the coefficient of coup and the destination channel adjacent channel, calculates the destination channel phase
Power on side channel, comprising:
It is adjacent as the destination channel by the sum of the coupled power on the coefficient of coup and the destination channel adjacent channel
Power on channel.
3. method according to claim 1 or 2, which is characterized in that it is described according to the transmission power and with the target
The supply voltage of the difference adjustment radio-frequency power amplifier of power in channel adjacent channel, specifically includes:
If the difference is greater than preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
4. method according to claim 1 or 2, which is characterized in that when the channel adjacent with the destination channel is multiple,
It is described to amplify according to the transmission power and with the difference adjustment radio-frequency power of the power in the destination channel adjacent channel
The supply voltage of device, specifically includes:
If the transmission power is all larger than corresponding preset threshold with the difference of the power on each adjacent channel, reduction is penetrated
The supply voltage of frequency power amplifier.
5. a kind of radio circuit, including sequentially connected processor, radio frequency transceiver, radio-frequency power amplifier, radio-frequency front-end with
And antenna, which is characterized in that
The radio-frequency front-end includes power coupling module, for exporting radio-frequency front-end to the power of antenna with a coefficient of coup coupling
Conjunction feeds back to radio frequency transceiver；
The radio frequency transceiver includes power computation module, for the frequency according to destination channel, in the coupling function of the feedback
The coupled power in the destination channel is determined in rate；And the frequency according to the destination channel adjacent channel, described
The coupled power in the destination channel adjacent channel is determined in the coupled power of feedback；According to the coefficient of coup and described
Coupled power in destination channel calculates the transmission power in the destination channel；And according to the coefficient of coup and described
Coupled power in destination channel adjacent channel calculates the power in the destination channel adjacent channel；
The processor includes voltage regulator module, for according to the transmission power and with the destination channel adjacent channel
On power difference adjustment radio-frequency power amplifier supply voltage.
6. radio circuit as claimed in claim 5, which is characterized in that the power computation module is specifically used for the coupling
The sum of coupled power on coefficient and the destination channel, as the transmission power in the destination channel；By the coupled systemes
Several the sum of coupled powers in the destination channel adjacent channel, as the power in the destination channel adjacent channel.
7. such as radio circuit described in claim 5 or 6, which is characterized in that the voltage regulator module is specifically used for described
Transmission power and when being greater than preset threshold with the difference of the power in the destination channel adjacent channel, reduces radio-frequency power and puts
The supply voltage of big device.
8. such as radio circuit described in claim 5 or 6, which is characterized in that when the channel adjacent with the destination channel is more
When a, the voltage regulator module is specifically used for big in the transmission power and the difference of the power on each adjacent channel
When corresponding preset threshold, the supply voltage of radio-frequency power amplifier is reduced.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108390691B (en) * | 2018-02-12 | 2019-10-18 | 维沃移动通信有限公司 | A kind of up-link carrier polyplant and mobile terminal |
| 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 |
| CN108649907A (en) * | 2018-05-15 | 2018-10-12 | Oppo广东移动通信有限公司 | Radio-frequency power amplifier method for controlling power supply, device, terminal device and medium |
| CN108683413B (en) * | 2018-05-15 | 2020-03-27 | Oppo广东移动通信有限公司 | Power supply control method and device for radio frequency power amplifier, terminal equipment and medium |
| CN110690866B (en) * | 2018-07-04 | 2022-12-20 | 青岛海信移动通信技术股份有限公司 | Processing method and device for reducing power consumption of power amplifier and terminal |
| CN109510634A (en) * | 2019-01-25 | 2019-03-22 | 北京唯得科技有限公司 | Radio-frequency power amplifier dynamic power adjusts device and dynamic power method of adjustment |
| CN110430001B (en) * | 2019-08-30 | 2021-04-13 | 联想(北京)有限公司 | Carrier optimization method and system |
| CN111061173A (en) * | 2019-12-31 | 2020-04-24 | 普联国际有限公司 | Power amplifier supply voltage control method and device and wireless equipment |
| CN111641957B (en) * | 2020-06-09 | 2023-01-31 | 展讯通信（上海）有限公司 | APT voltage configuration method and system, electronic device and computer readable medium |
| CN112532053B (en) * | 2020-10-09 | 2022-03-29 | 中兴通讯股份有限公司 | Radio frequency power supply adjusting method, device, equipment and storage medium |
| CN114553251B (en) * | 2020-11-26 | 2023-06-06 | 华为技术有限公司 | Wireless communication system, power supply circuit and device |
| CN113328708A (en) * | 2021-06-08 | 2021-08-31 | 维沃移动通信有限公司 | Control circuit, control method and device of radio frequency power amplifier circuit and electronic equipment |
| CN114040488A (en) * | 2021-12-08 | 2022-02-11 | 广东明创软件科技有限公司 | Power adjustment method, radio transceiver, power amplifier and storage medium |
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| CN102447487A (en) * | 2010-10-07 | 2012-05-09 | 苹果公司 | Wireless transceiver with amplifier bias adjusted based on modulation scheme and transmit power feedback |
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