CN106604302A - Terminal power calibration method - Google Patents
Terminal power calibration method Download PDFInfo
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- CN106604302A CN106604302A CN201611069064.2A CN201611069064A CN106604302A CN 106604302 A CN106604302 A CN 106604302A CN 201611069064 A CN201611069064 A CN 201611069064A CN 106604302 A CN106604302 A CN 106604302A
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- power
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- point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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Abstract
The invention discloses a terminal power calibration method. The method comprises the following steps: calculating a reference power point for power calibration; judging whether a power section, where the reference power point locates, of a power amplifier is a low-gain mode section; if so, modifying configuration parameters to enable the reference power point to locate in a high-gain mode section of the power amplifier; and carrying out power calibration based on the reference power point. The method can improve terminal power calibration precision and is simple and feasible.
Description
Technical field
The present invention relates to collimation technique field, more particularly to a kind of power calibrating method of terminal.
Background technology
One terminal is often made up of up to a hundred components and parts, even if being can also exist between same batch components and parts partially
Difference, this deviation can cause the power parameter of terminal not reach Standard, accordingly, it would be desirable to utilize power calibrating method by the end
The power parameter at end is adjusted in the range of Standard.
Terminal it is actually used in, calibration excessive other RF indexes that may cause terminal of power are (such as adjacent channel
Power leakage ratio, Error Vector Magnitude etc.) it is not up to standard, and if the calibration of power is too small, under weak signal environment, terminal may be just
Base station signal cannot be obtained, the normal work of terminal is had a strong impact on.Therefore the calibration of power precision for how improving terminal is power
The problem of collimation technique field urgent need to resolve.
The content of the invention
The invention mainly solves the technical problem of a kind of power calibrating method of terminal is provided, to improve terminal power school
Accurate precision.
To solve above-mentioned technical problem, the invention provides a kind of power calibrating method of terminal, the method includes：Calculate
For the reference power point of the calibration of power；Whether the power interval for judging the power amplifier fallen into by the reference power point is low
Gain mode is interval；If so, configuration parameter is then changed, so that the reference power point falls into the high gain mode of power amplifier
It is interval；The calibration of power is carried out based on the reference power point.
Wherein, the step of above-mentioned calculating is used for the reference power point of the calibration of power includes：Obtain from the calibration file of terminal
Take the switching point of transmitting power control；Said reference power points is calculated according to the switching point.
Wherein, whether the above-mentioned power interval for judging power amplifier that the reference power point is fallen into is low gain mode
Interval step includes：Obtain from the calibration file of terminal for divide above-mentioned power interval multiple interval division points and
For representing the pattern identification of the gain mode of each power interval；Being judged according to the reference power point and interval division point should
The power interval fallen into by reference power point, and the corresponding pattern identification of power interval fallen into according to the reference power point come
Judge whether the power interval fallen into by the reference power point is that low gain mode is interval.
Wherein, above-mentioned change configuration parameter, so that said reference power points falls into the high gain mode of power amplifier
Interval step includes：The calibration file of modification terminal, so that the reference power point falls into the high gain mode of power amplifier
It is interval.
Wherein, the calibration file of above-mentioned modification terminal, so that the reference power point falls into the high-gain mould of power amplifier
The interval step of formula includes：Modification interval division point, so that the reference power point falls into the high gain mode of power amplifier
It is interval.
Wherein, the calibration file of above-mentioned modification terminal, so that the reference power point falls into the high-gain mould of power amplifier
The interval step of formula includes：The pattern identification of the power interval fallen into by the reference power point is changed, so that the reference power
The high gain mode that point falls into power amplifier is interval.
Wherein, above-mentioned change configuration parameter, so that the reference power point falls into the high gain mode of above-mentioned power amplifier
Interval step includes：The interface driver file of modification terminal, so that the reference power point falls into the high-gain of power amplifier
Mode interval.
Wherein, the interface driver file of above-mentioned modification terminal, so that the reference power point falls into the high increasing of power amplifier
The step of beneficial mode interval, includes：Change for controlling the content of the depositor of the gain mode of power amplifier, so that the base
The high gain mode that quasi- power points falls into power amplifier is interval.
Wherein, above-mentioned change configuration parameter, so that the high gain mode that the reference power point falls into power amplifier is interval
The step of include：Change configuration parameter, so that the power interval that fallen into of the reference power point and more than the reference power point
The high gain mode that power interval is power amplifier is interval.
Wherein, it is above-mentioned to include the step of carry out the calibration of power based on the reference power point：According to the school of the reference power point
Quasi- result carries out the calibration of power to other power intervals.
The invention has the beneficial effects as follows：Prior art is different from, a kind of power calibrating method of terminal of the invention is counted first
The reference power point for obtaining power amplifier is calculated, if the power interval that the reference power point is located is the low increasing of the power amplifier
Beneficial mode interval, then cause the reference power point to fall into the high gain mode area of the power amplifier by changing configuration parameter
Between, it is then based on the reference power point and the power of power amplifier is calibrated.The method can solve the problem that power amplifier because
The power interval that reference power point falls into is that low gain mode is interval, and to falling into power interval for the interval work(of high gain mode
When rate is calibrated, the problem of calibration accuracy is reduced.Because power amplifier has nonlinear characteristic, from low-power to high power
Different capacity interval need different gain modes, the interval gain of the high gain mode increasing interval more than low gain mode
Benefit, therefore, when the reference power point falls into low gain mode area, and the power to falling into high gain mode area is calibrated
When, deviation can be produced, and the deviation can increase because of the large gain in high gain mode area, calibration accuracy substantially can be reduced, institute
Reference power is made all the time to both fall within power high gain mode area by changing configuration parameter with the present invention, so as to improve the school of terminal
Quasi- precision.
Description of the drawings
Fig. 1 is the schematic flow sheet of the power calibrating method of terminal of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under the premise of performing creative labour is not made
Embodiment, belongs to the scope of protection of the invention.
Refering to Fig. 1, Fig. 1 is the schematic flow sheet of the power calibrating method of terminal of the present invention.The present embodiment includes following step
Suddenly：
S11：Calculate the reference power point for the calibration of power.
Alternatively, the present embodiment obtains the switching point of transmitting power control first from the calibration file of terminal；Then root
According to switching point calculating benchmark power points.
In an application scenarios, the switching point of the transmitting power control of the present embodiment includes the first switching point and second cuts
Change a little, correspond to the power smallest point and power maximum point in the power high gain mode interval of power amplifier respectively.First cuts
Change, the second switching point includes the second rising switch point and the second decline
Switching point.In another application scenarios, in order to improve the sensitivity that power amplifier switches in different gains mode interval, can
First rising switch point and the first decline switching point, the second rising switch point are arranged respectively to the second decline switching point identical
Value.In other application scene, in order to prevent power amplifier in the frequent switching of different gains mode interval, can be by first
Rise between switching point and the first decline switching point, between the second rising switch point and the second decline switching point, be provided with certain power
Difference, the size of the difference can be set according to the real needs of the calibration of power.
In an application scenarios, the present embodiment formula is (under second the-the first rising switch point+the second of rising switch point
Drop switching point-the first decline switching point)/4 result of calculations absolute value as the reference power point.Certainly in other application scene
In, this formula can be replaced using other algorithms.
S12：Whether the power interval for judging the power amplifier fallen into by the reference power point is that low gain mode is interval.
If so, step S13 is then carried out, step S14 is otherwise carried out.
Alternatively, the present embodiment is obtained from the calibration file of terminal first for dividing multiple areas of above-mentioned power interval
Between division points and the pattern identification for representing the gain mode of each power interval, then according to the reference power point with
Interval division point is judging power interval that the reference power point is fallen into, and the power area fallen into according to the reference power point
Between corresponding pattern identification come whether the power interval fallen into by judgment standard power points is that low gain mode is interval.
In an application scenarios, the power gain pattern of power amplifier is divided into high gain mode and low gain mode,
Corresponding pattern identification is respectively H, L.In other application scene, power gain pattern is divided into high gain mode, middle gain mould
Formula and low gain mode, corresponding pattern identification are respectively H, M, L.
It is pointed out that there is the relation of one-to-one or one-to-many with power interval in power gain pattern.
S13：Change configuration parameter, so that the high gain mode that the reference power point falls into power amplifier is interval.
Alternatively, the present embodiment can pass through the calibration file for changing terminal, so that the reference power point falls into power and puts
The high gain mode of big device is interval.
Specifically, the present embodiment can be by changing interval division point, so that the reference power point falls into power amplification
The high gain mode of device is interval, i.e., by the high gain mode interval division points interval with low gain mode are reduced to the benchmark
Below power points.The present embodiment can also pass through the pattern identification for changing the power interval fallen into by the reference power point, so that
Obtain the reference power point fall into power amplifier high gain mode it is interval, will the power interval that fallen into of the reference power point
Pattern identification L be revised as H.
Alternatively, the present embodiment can also pass through the interface driver file for changing terminal, so that the reference power point falls into
The high gain mode of power amplifier is interval.
Specifically, the present embodiment can be by changing in interface driver file for controlling the gain mode of power amplifier
The content of depositor, so that the high gain mode that the reference power point falls into power amplifier is interval.
Alternatively, the present embodiment can be by changing configuration parameter, so that the power interval fallen into by the reference power point
And more than reference power point power interval be power amplifier high gain mode it is interval, with ensure the reference power point and
High gain mode interval is both fallen within more than all power points of the reference power point.
S14：The calibration of power is carried out based on the reference power point.
Alternatively, the present embodiment carries out work(to other power intervals yet further still according to the calibration result of the reference power point
Rate is calibrated.
In an application scenarios, the present embodiment is based on the reference power point, and using reference power fitting algorithm to which
Its power interval is calibrated.Certainly the different work(for calibrating platform, different terminals, different reference channels and different model
Rate amplifier can replace the reference power fitting algorithm using different algorithms.
Prior art is different from, a kind of power calibrating method of terminal of the invention calculates the base for obtaining power amplifier first
Quasi- power points, if the power interval that the reference power point is located is the low gain mode interval of the power amplifier, by repairing
Change configuration parameter so that the reference power point high gain mode that falls into the power amplifier is interval, be then based on the reference power
Point is calibrated to the power of power amplifier.The method can solve the problem that the power area that power amplifier is fallen into because of reference power point
Between for low gain mode it is interval, and to, when falling into power interval and calibrating for the interval power of high gain mode, reducing calibration
The problem of precision.It is because power amplifier has nonlinear characteristic, interval from low-power to high-power different capacity to need not
Same gain mode, the interval gain of the high gain mode gain interval more than low gain mode, therefore, when the reference power point
When falling into low gain mode area, and the power to falling into high gain mode area is when calibrating, and can produce deviation, and the deviation meeting
Increase because of the large gain in high gain mode area, calibration accuracy substantially can be reduced, so the present invention is by changing configuration parameter
Reference power is made to both fall within power high gain mode area all the time, so as to improve the calibration accuracy of terminal.
Prior art is different from, the present embodiment can be matched somebody with somebody to change by changing the calibration file or interface driver file of terminal
Parameter is put, so that the high gain mode that the reference power point falls into power amplifier is interval, so as to improve terminal power calibration
Precision, these methods are simple.
For the power calibrating method of apparent explanation the present embodiment terminal, below in conjunction with Lian Fake (MTK) the 4th
File pair is driven for mechanics of communication (4G) platform power calibration file and corresponding mobile Industry Processor Interface (MIPI)
The process of the calibration of power of the terminal under WCDMA communication patterns is described.
Further, in MTK 4G platform powers calibration file, Start1=12, End1=12 respectively define transmission work(
The rising switch point and decline switching point of rate switching point 1, Start2=24, End2=24 respectively define through-put power switching point
2 rising switch point and decline switching point (wherein, switching point 1,2 correspond to respectively power high gain region power smallest point and
Power maximum point)；PA OCTLEVEL Sections=8 define power amplifier and have 8 power intervals from high to low；
PAOCTLEVEL PMU LEVEL PA Mode=H, H, H, H, H, H, L, L respectively define the corresponding pattern mark of each power interval
Know (H is high gain mode, L is low gain mode)；PA OCTLEVEL PMU Level Prf=24,22,20,16,14,10,
6,1 division points for respectively defining above-mentioned 8 power intervals.
Further, MIPI drives transmitting power control code MIPI_PA in file content, { 12,13 }, MIPI_TPC_
SET, US2CHIPCNT (20) } define terminal transmitting power control event 6 under WCDMA communication patterns, event 6 and above-mentioned 8
The penultimate power interval of individual power interval and penultimate pattern identification L correspondences.The corresponding concrete data generation of event 6
Code MIPI_PA, UL1_MIPI_POROT, REG_W, MUPI_USID_PA2, and { 19224, { 0x00,0x4F } }, 19362,
{ 0x00,0x4F } }, { 19500, { 0x00,0x4F } }, { 19638, { 0x00,0x4F } } define 00 depositor and 01 depositor
Content, 00 content of registers is mainly used in the gain mode for arranging PA signal output port and power amplifier,
Content 4D of 00 depositor represents high gain mode, and 4F represents low gain mode；01 depositor is mainly used in setting power and puts
The quiescent point of big device, the quiescent point that the different capacity of power amplifier is interval are different.
First, calculating benchmark power points：From analysis, reference power P=(Start2-Start1+End2-End1)/4
=(24-12+24-12)/4=6dBm (because rising switch point is more than switching point is declined, P is for just, equal with the absolute value of P).
Next, it is judged that whether the power interval of power amplifier that reference power point 6dBm falls into is low gain mode area
Between, can be seen that in division points of the 6dBm power points just at penultimate power interval from above-mentioned definition, and the inverse
The pattern identification of second power interval is that L (has arranged penultimate power interval with reciprocal the in MIPI drives file
The pattern identification of three power interval division points is identical with the pattern identification of penultimate power interval), therefore judgment standard
The power interval that power points 6dBm falls into is that low gain mode is interval.
Then, configuration parameter is changed, can be by by the high-gain mould in above-mentioned PA OCTLEVEL PMU LevelPrf
Interval division points 6dBm interval with low gain of formula are reduced to reference power point below 6dBm, such as 5dBm, i.e. PA OCTLEVEL
PMU Level Prf=24,22,20,16,14,10,5,1.So allow for reference power point 6dBm and fall into pattern identification be
The power interval of H, so that reference power point 6dBm is interval in high gain mode；Or directly by reference power point 6dBm
The pattern identification L of the power interval for being fallen into is revised as H, that is, obtain PAOCTLEVEL PMU Level PA Mode=H, H, H,
H, H, H, H, L, so that reference power point 6dBm falls into high gain mode interval.
Knowable to above-mentioned analysis, can also be by by the content of 00 depositor in event 6 corresponding concrete data code
0x4F should be 0x4D, i.e., MIPI_PA, UL1_MIPI_POROT, REG_W, MUPI_USID_PA2,19224 0x00,
0x4D } }, { 19362, { 0x00,0x4D } }, { 19500, { 0x00,0x4D } }, { 19638, { 0x00,0x4D } }, thus by base
The corresponding low gain mode mark L of penultimate power interval that quasi- power points 6dBm falls into is changed to high gain mode mark H,
So that reference power point 6dBm falls into high gain mode interval.
The present embodiment, will make reference power point 6dBm fall into high gain mode interval by changing configuration parameter, so as to carry
High reference power point 6dBm calibrations fall into the calibration accuracy of the interval power of the high gain mode.
For different calibration platforms, different calibrating terminals and different power amplifiers, calibration of power file, interface
Drive file and corresponding algorithm etc. all have differences, but the present embodiment power calibrating method is suitable for.
In the present embodiment, terminal can be, but not limited to, mobile phone, notebook, panel computer.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of power calibrating method of terminal, it is characterised in that methods described includes：
Calculate the reference power point for the calibration of power；
Whether the power interval for judging the power amplifier fallen into by the reference power point is that low gain mode is interval；
If so, configuration parameter is then changed, so that reference power point falls into the high gain mode area of the power amplifier
Between；
The calibration of power is carried out based on the reference power point.
2. method according to claim 1, it is characterised in that the calculating is used for the step of the reference power point of the calibration of power
Suddenly include：
The switching point of transmitting power control is obtained from the calibration file of the terminal；
The reference power point is calculated according to the switching point.
3. method according to claim 1, it is characterised in that the power fallen into by the judgement reference power point is put
Whether the power interval of big device is that the interval step of low gain mode includes：
Obtain from the calibration file of the terminal for dividing multiple interval division points of the power interval and being used for table
Show the pattern identification of the gain mode of each power interval；
The power interval fallen into by the reference power point, and root are judged according to the reference power point and the interval division point
The corresponding pattern identification of power interval fallen into according to the reference power point is judging work(that the reference power point is fallen into
Whether it is that low gain mode is interval that rate is interval.
4. method according to claim 3, it is characterised in that the change configuration parameter, so that the reference power
Point falls into the step in the high gain mode interval of the power amplifier to be included：
The calibration file of the terminal is changed, so that reference power point falls into the high gain mode area of the power amplifier
Between.
5. method according to claim 4, it is characterised in that the calibration file of the modification terminal, so that described
Reference power point falls into the step in the high gain mode interval of the power amplifier to be included：
The interval division point is changed, so that reference power point falls into the high gain mode area of the power amplifier
Between.
6. method according to claim 4, it is characterised in that the calibration file of the modification terminal, so that described
Reference power point falls into the step in the high gain mode interval of the power amplifier to be included：
Change the pattern identification of the power interval fallen into by the reference power point so that reference power point fall into it is described
The high gain mode of power amplifier is interval.
7. method according to claim 3, it is characterised in that the change configuration parameter, so that reference power point
The step for falling into the high gain mode interval of the power amplifier includes：
The interface driver file of the terminal is changed, so that reference power point falls into the high-gain mould of the power amplifier
Formula is interval.
8. method according to claim 7, it is characterised in that the interface driver file of the modification terminal, so that
The reference power point falls into the step in the high gain mode interval of the power amplifier to be included：
Change for controlling the content of the depositor of the gain mode of the power amplifier, so that reference power point falls into
The high gain mode of the power amplifier is interval.
9. method according to claim 1, it is characterised in that the change configuration parameter, so that reference power point
The step for falling into the high gain mode interval of the power amplifier includes：
Change configuration parameter, so that the power interval that fallen into of reference power point and the power more than the reference power point
The high gain mode that interval is the power amplifier is interval.
10. method according to claim 1, it is characterised in that described that the calibration of power is carried out based on the reference power point
The step of include：
The calibration of power is carried out to other power intervals according to the calibration result of the reference power point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069064.2A CN106604302B (en) | 2016-11-28 | 2016-11-28 | Power calibration method of terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069064.2A CN106604302B (en) | 2016-11-28 | 2016-11-28 | Power calibration method of terminal |
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| CN106604302A true CN106604302A (en) | 2017-04-26 |
| CN106604302B CN106604302B (en) | 2020-11-13 |
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ID=58593667
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| CN201611069064.2A Active CN106604302B (en) | 2016-11-28 | 2016-11-28 | Power calibration method of terminal |
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