CN105553501A - Device and method for controlling power-time curve - Google Patents
Device and method for controlling power-time curve Download PDFInfo
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- CN105553501A CN105553501A CN201510977839.5A CN201510977839A CN105553501A CN 105553501 A CN105553501 A CN 105553501A CN 201510977839 A CN201510977839 A CN 201510977839A CN 105553501 A CN105553501 A CN 105553501A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003321 amplification Effects 0.000 claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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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
- H04B1/401—Circuits for selecting or indicating operating mode
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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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
Abstract
The invention discloses a device and a method for controlling a power-time curve. The device comprises a storage, a CPU, a modulator-demodulator and a power amplifier, wherein the CPU starts the modulator-demodulator to output a corresponding high-frequency or low-frequency modulation-demodulation signal according to the high/low frequency requirements of signal emission; the CPU reads precompiled high-frequency open time or low-frequency open time from the storage, and transmits to the power amplifier to control high-frequency open or low-frequency open of the power amplifier, and the power amplifier performs corresponding high-frequency amplification or low-frequency amplification on the modulation-demodulation signal; the high-frequency open or the low-frequency open can be performed at different time points through separating and independently setting the high-frequency open time and the low-frequency open time; and therefore, the power-time curve can be kept in the center of a template and away from the edge of the template, thus the risk that PVT exceeds standard and thereby causes offline is reduced, and the PVT performance achieves the best.
Description
Technical field
The present invention relates to the antenna design techniques field of electronic product, particularly a kind of control device of power time curve and method thereof.
Background technology
The radio-frequency power amplifier of existing conventional portable equipment, due to the restriction of its structure and control mode, cause its GSM(GlobalSystemforMobileCommunication, global system for mobile communications) low frequency and high frequency time of opening must be all identical.Inner in radio-frequency (RF) power amplification, low-and high-frequency is oneself independently radio frequency amplifying unit and controlling mechanism all, if low-and high-frequency all adopts the identical time to open a little, can cause PVT(power time curve) exceed the situation of template.As shown in Figure 1, the curve (centre) risen is although in template (vertical curve near the stepped straight line, 0 risen in by Fig. 1 and two horizontal straight lines are formed), and curve (first curve significantly risen) is relatively near the stair-stepping rising edge of template.If GSM high frequency and GSM low frequency are opened simultaneously, under special small-power, GSM high frequency is easy to exceed template.
In view of this, the invention provides a kind of control device and method thereof of power time curve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of control device and method thereof of power time curve, open to solve existing GSM low-and high-frequency the problem causing power time curve to exceed template simultaneously.
In order to achieve the above object, this invention takes following technical scheme:
A control device for power time curve, it comprises: memory, CPU, modulator-demodulator and power amplifier;
Described CPU, according to the low-and high-frequency requirement transmitted, starts modulator-demodulator and exports corresponding high frequency or the modulation-demodulation signal of low frequency; CPU reads the high frequency opening time or low frequency opening time write in advance and is transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory, and power amplifier carries out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies.
In the control device of described power time curve, described high frequency opening time and low frequency opening time are arranged and unequal mutually independently of one another.
In the control device of described power time curve, described high frequency opening time is shorter than low frequency opening time.
In the control device of described power time curve, when the DAC value of described high frequency opening time is 6, the difference range of the DAC value of low frequency opening time and the DAC value of high frequency opening time is 4 ~ 12.
In the control device of described power time curve, the DAC value of described high frequency opening time is 6; The DAC value of low frequency opening time is 14.
In the control device of described power time curve, described CPU is connected with power amplifier by mipi interface.
Adopt a control method for the control device of described power time curve, it comprises:
A, CPU, according to the low-and high-frequency requirement transmitted, start modulator-demodulator and export corresponding high frequency or the modulation-demodulation signal of low frequency;
B, CPU read the high frequency opening time or low frequency opening time write in advance and are transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory;
C, power amplifier carry out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies.
Compared to prior art, the control device of power time curve provided by the invention and method thereof, by CPU according to the low-and high-frequency requirement transmitted, start modulator-demodulator and export corresponding high frequency or the modulation-demodulation signal of low frequency; CPU reads the high frequency opening time or low frequency opening time write in advance and is transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory, and power amplifier carries out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies; By high frequency opening time being separated with low frequency opening time and independent arranging, to open or low frequency is opened to carry out high frequency at different time points; Power time curve can be made to remain in the middle of template, away from template edge, thus reduce PVT and to exceed standard the risk gone offline, make PVT performance reach optimum.
Accompanying drawing explanation
Fig. 1 is the PVT schematic diagram of existing antenna.
Fig. 2 is the block diagram of the control device of power time curve provided by the invention.
Fig. 3 is the schematic diagram of power time curve provided by the invention.
Fig. 4 is the control method flow chart of power time curve provided by the invention.
Embodiment
The invention provides a kind of control device and method thereof of power time curve, at mipi(MobileIndustryProcessorInterface, mobile Industry Processor Interface) under the hierarchy of control, in mipidirver, redefine the opening time of GSM high frequency and GSM low frequency and the two is separated; Thus optimize PVT performance on existing basis, thus reduce PVT and to exceed standard the risk gone offline.For making object of the present invention, technical scheme and effect clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 2, the control device of power time curve provided by the invention comprises memory 100, CPU200, modulator-demodulator 300 and power amplifier 400.Described CPU, according to the low-and high-frequency requirement transmitted, starts modulator-demodulator 300 and exports corresponding high frequency or the modulation-demodulation signal of low frequency; CPU reads the high frequency opening time or low frequency opening time write in advance and is transferred to power amplifier 400 to control power amplifier high frequency and open or low frequency is opened from memory 100, power amplifier 400 pairs of modulation-demodulation signals pass through antenna transmission after carrying out corresponding High frequency amplification or low frequency amplification.Wherein, the communication of I/Q signal line is passed through between CPU200 and modulator-demodulator 300.High and low frequency all refers to GSM high frequency and GSM low frequency.
The main improvement of the present embodiment is separated with low frequency opening time by high frequency opening time and carries out respectively arranging and two time not identical (namely independent of one another arrange and unequal mutually).Carry out high frequency to open or low frequency is opened to control same switch at different time points, namely to open in power amplifier 400 independently high-frequency radio frequency amplifying unit or low frequency radio frequency amplifying unit respectively, realize High frequency amplification or low frequency amplifies.Described high frequency opening time and low frequency opening time are kept in memory 100, and preferably, described memory 100 is flash storage, its more convenient set of time.
In the present embodiment, described high frequency opening time is shorter than low frequency opening time, and the time is in units of DAC value herein.The scope of the DAC value of high frequency opening time is preferably-2 ~ 14.When the DAC value of high frequency opening time is 6, the difference range of the DAC value of low frequency opening time and the DAC value of high frequency opening time is 6 ~ 10, and best difference is 8.Such as, the DAC value of high frequency opening time is 6; Then the scope of the DAC value of low frequency opening time is 12 ~ 16, and the best is 14; The power time curve of such acquisition in a template between, as shown in Figure 3, away from template edge, PVT best performance.
The hardware configuration of existing equipment and the restriction of software control cause high frequency opening time can only be identical with low frequency opening time.And the present embodiment adopts mipi technology platform, specifically CPU is connected with power amplifier 400 by mipi interface.CPU reads out high frequency opening time (high frequency comprising pairing opens mark), low frequency opening time (low frequency comprising pairing opens mark), the controling parameters that low gain, high-gain, electric current etc. are relevant write in advance from memory 100, just can be transferred to power amplifier 400 by mipi interface.Other interface platforms cannot realize the transmission of low-and high-frequency opening time and relevant parameter, also just can not control high frequency respectively and open and open with low frequency.
In the present embodiment, in described power amplifier 400, be provided with several registers corresponding with controling parameters type and a control unit.Each register receives a kind of parameter of mipi interface transmission respectively.As time register receive high frequency opening time, high frequency opens mark, low frequency opening time, low frequency open mark.Open as high frequency and be masked as 1, high frequency opening time is 6; Low frequency is opened and is masked as 0, and low frequency opening time is 14.Be identified as when to read the value of time register be 1 to control unit and carry out high frequency and open, after 6 DAC values, open high frequency, High frequency amplification is carried out to the modulation-demodulation signal of modulator-demodulator 300 output.In like manner, be identified as when to read the value of time register be 0 to control unit and carry out low frequency and open, after 14 DAC values, open low frequency, low frequency amplification is carried out to modulation-demodulation signal.It is to be appreciated that described control unit carries out working state control according to the value of above-mentioned register in real time, when control unit detects the value change of each register, read this value and change current operating state; If the value of register is without change, keep current operating state.
Based on the control device of above-mentioned power time curve, the present invention also provides a kind of emission control method based on mipi interface, and as shown in Figure 4, described emission control method comprises:
S100, CPU, according to the low-and high-frequency requirement transmitted, start modulator-demodulator and export corresponding high frequency or the modulation-demodulation signal of low frequency.
S200, CPU read the high frequency opening time or low frequency opening time write in advance and are transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory.
S300, power amplifier carry out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies.
In sum, the control device of power time curve provided by the invention and method thereof, by being separated with low frequency opening time and independent setup times value by existing high frequency opening time, to open or low frequency is opened to carry out high frequency at different time points; Power time curve can be made to remain in the middle of template, away from template edge, thus reduce PVT and to exceed standard the risk gone offline, make PVT performance reach optimum; It changes very little (opening time is provided separately), greatly provides cost savings.
Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection range that all should belong to the claim appended by the present invention.
Claims (7)
1. a control device for power time curve, is characterized in that, comprising: memory, CPU, modulator-demodulator and power amplifier;
Described CPU, according to the low-and high-frequency requirement transmitted, starts modulator-demodulator and exports corresponding high frequency or the modulation-demodulation signal of low frequency; CPU reads the high frequency opening time or low frequency opening time write in advance and is transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory, and power amplifier carries out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies.
2. the control device of power time curve according to claim 1, is characterized in that, described high frequency opening time and low frequency opening time are arranged and unequal mutually independently of one another.
3. the control device of power time curve according to claim 1, is characterized in that, described high frequency opening time is shorter than low frequency opening time.
4. the control device of power time curve according to claim 3, is characterized in that, when the DAC value of described high frequency opening time is 6, the difference range of the DAC value of low frequency opening time and the DAC value of high frequency opening time is 4 ~ 12.
5. the control device of power time curve according to claim 3, is characterized in that, the DAC value of described high frequency opening time is 6; The DAC value of low frequency opening time is 14.
6. the control device of power time curve according to claim 1, is characterized in that, described CPU is connected with power amplifier by mipi interface.
7. adopt a control method for the control device of power time curve according to claim 1, it is characterized in that, comprising:
A, CPU, according to the low-and high-frequency requirement transmitted, start modulator-demodulator and export corresponding high frequency or the modulation-demodulation signal of low frequency;
B, CPU read the high frequency opening time or low frequency opening time write in advance and are transferred to power amplifier to control power amplifier high frequency and open or low frequency is opened from memory;
C, power amplifier carry out corresponding High frequency amplification to modulation-demodulation signal or low frequency amplifies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977839.5A CN105553501B (en) | 2015-12-23 | 2015-12-23 | A kind of control device and its method of power time curve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510977839.5A CN105553501B (en) | 2015-12-23 | 2015-12-23 | A kind of control device and its method of power time curve |
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| CN105553501A true CN105553501A (en) | 2016-05-04 |
| CN105553501B CN105553501B (en) | 2019-01-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852030A (en) * | 2005-04-22 | 2006-10-25 | 三星电机株式会社 | Data transmitter and data transceiver incorporating SAW filter |
| CN101176254A (en) * | 2005-03-21 | 2008-05-07 | 麦比乌斯微系统公司 | Frequency controller for a monolithic clock generator and timing/frequency refrence |
| US20100202421A1 (en) * | 2009-02-12 | 2010-08-12 | Icera Inc. | Transmitting signals |
| CN102006016A (en) * | 2010-12-01 | 2011-04-06 | 惠州Tcl移动通信有限公司 | GSM power amplification module and mobile terminal |
| CN102510297A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal |
-
2015
- 2015-12-23 CN CN201510977839.5A patent/CN105553501B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176254A (en) * | 2005-03-21 | 2008-05-07 | 麦比乌斯微系统公司 | Frequency controller for a monolithic clock generator and timing/frequency refrence |
| CN1852030A (en) * | 2005-04-22 | 2006-10-25 | 三星电机株式会社 | Data transmitter and data transceiver incorporating SAW filter |
| US20100202421A1 (en) * | 2009-02-12 | 2010-08-12 | Icera Inc. | Transmitting signals |
| CN102006016A (en) * | 2010-12-01 | 2011-04-06 | 惠州Tcl移动通信有限公司 | GSM power amplification module and mobile terminal |
| CN102510297A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal |
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| CN105553501B (en) | 2019-01-29 |
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Effective date of registration: 20230823 Address after: Room 1203, No. 2 Houkenanli, Haicang District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen Luan Chuang Technology Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |
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Effective date of registration: 20240123 Address after: Room 403 and 404, No. 8, Yongtai Taixing Road, Yongping Street, Baiyun District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Mudi Information Technology Co.,Ltd. Country or region after: China Address before: Room 1203, No. 2 Houkenanli, Haicang District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen Luan Chuang Technology Co.,Ltd. Country or region before: China |