CN100399714C - Mobile communication terminal with adjustable driving voltage of power amplifier and control method thereof - Google Patents
Mobile communication terminal with adjustable driving voltage of power amplifier and control method thereof Download PDFInfo
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- CN100399714C CN100399714C CNB2005100889331A CN200510088933A CN100399714C CN 100399714 C CN100399714 C CN 100399714C CN B2005100889331 A CNB2005100889331 A CN B2005100889331A CN 200510088933 A CN200510088933 A CN 200510088933A CN 100399714 C CN100399714 C CN 100399714C
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- power amplifier
- signal
- pam
- voltage
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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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/26—A/D convertors
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a mobile communication terminal having a function for varying a PAM driving voltage and a method for controlling the same. The terminal comprises: MSM and a DC/DC converter. The MSM linearly subdivides an output power level of a PAM to set an available driving voltage to the sub-divided output power level. The MSM sets a PDM signal value one-to-one corresponding to a TxAGC table value. The MSM outputs a transmission controlling signal to an FRT based on the TxAGC table. The DC/DC converter provides a driving voltage of cell to PAM by control of PWM, and drives the PAM through the optimal voltage by varying an output voltage by a variable controlling signal of the MSM. The invention can efficiency of PAM and reduce the consumptive power, therefore the use time of cell is increased.
Description
Technical field
The present invention relates to have the mobile communication terminal and the control method of PAM driving voltage changeable, more detailed saying so used the mobile communication terminal and the control method of driving voltage changeable of the PAM of DC-DC converter as the driving voltage (Vcc) of PAM (Power Amplifier Module-power amplifier).
Background technology
Fig. 1 is the structured flowchart of the mobile communication terminal major part of PAM driving voltage mode of the prior art; Fig. 2 is the drawing of the Tx AGC table of RAS RAM.
As shown in the figure, in the mobile communication terminal of the PAM of prior art driving voltage mode, utilize load switch (Load Switch) 20 that the voltage of battery 10 is added to PAM30 mutually and as the driving voltage Vcc of PAM30.
As implied above, the drive voltage supply mode of above-mentioned PAM will be utilized power mode (Power Mode) (High, Low) two of classification RAS RAM the Tx AGC tables (with reference to Fig. 2) of PAM30.
That is, when driving PAM in the prior art, utilize load switch 20 and with the driving voltage Vcc of the voltage of battery 10 (approximately 4.2-3.0V) as PAM30.Simultaneously according to the PA_R0 signal of MSM (Mobile Station Modem-portable terminal modulator-demodulator) 60, the pattern of PAM30 is divided into (28-16dBm) (16--55dBm) two kinds of patterns of pattern and driving of pattern and low-power (Low Power) of high power (High Power).
As shown in Figure 2, pattern (High at PAM30, Low) during two of classification RAS RAM Tx AGC show, when moving with high-power mode, MSM60 sends tx_agc_adj signal (value of 0-511) with reference to the 1. zone of table 1 and to RFT (RadioFrequency Terminal-rf terminal) 50; When moving, then with reference to the 2. zone of table 4 and send the tx_agc_adj signal with low-power mode.At this moment, the driving voltage Vcc of PAM30 and pattern are irrelevant, but drive with voltage (4.2-3.0V) size of battery 10.
But, in the mobile communication terminal of the PAM of prior art type of drive, output power level as PAM, have only by these two kinds of patterns of high-power mode and low-power mode and select and power controlling pattern, thereby can't PAM be carried out variable control and driving with the voltage of the best corresponding to transmit power level.
Summary of the invention
Solve above-mentioned the problems of the prior art for making, the object of the present invention is to provide a kind of PAM of having driving voltage variable mobile communication terminal and control method, make driving voltage source Vcc, utilize DC-DC converter to change according to the driving voltage of PAM output voltage rank to PAM as PAM.
Mobile communication terminal of the present invention is characterised in that it contains:
Duplexer is by antenna and base station communication;
Power amplifier, i.e. PAM, output links to each other with the input of above-mentioned duplexer;
Portable terminal modulator-demodulator with cpu function is MSM, the output of the power amplifier PAM pattern drive voltage signal PA_RO of described MSM links to each other with the PA_RO signal input part of above-mentioned power amplifier, the output power level of power amplifier is considered the linearisation segmentation of linear surplus when described portable terminal modulator-demodulator, and according to the power rank of described sectionalization, after the special-purpose driving voltage of the described power amplifier of above-mentioned linear surplus is considered in setting, send to described power amplifier with the form of PA_RO signal;
Rf terminal, be RFT, the input that transmits control signal links to each other with the output of the transmission automatic gaining controling signal Tx AGC of the transmitter of above-mentioned portable terminal modulator-demodulator, the value of described Tx AGC signal obtains from Tx AGC table, in Tx AGC table, the value of Tx AGC signal wherein is the transmit power level with above-mentioned duplexer, promptly mate one to one with the output power level of power amplifier PAM, the rank of the power that receives from the base station then is consistent with the transmit power level of above-mentioned duplexer; The transmission signal output part of above-mentioned rf terminal links to each other with the transmission signal input part of the flourishing device of above-mentioned power.
DC-DC converter, battery-powered, the pulse increment control PDM signal input part of this transducer links to each other with the PDM signal output part of above-mentioned portable terminal modulator-demodulator, and described PDM voltage of signals value is that the value of the Tx AGC signal during above-mentioned portable terminal modulator-demodulator is shown with reference to above-mentioned Tx AGC obtains; The pulse-width modulation PWM signal output part of above-mentioned DC-DC converter links to each other with the driving voltage Vcc input of above-mentioned power amplifier.
The control method of mobile communication terminal of the present invention is characterized in that, it contains following steps successively:
The output power level of power amplifier is considered the linearisation segmentation of linear surplus, and, set the step that the described power amplifier of having considered above-mentioned linear surplus can be used driving voltage according to described each power rank of segmenting;
For the power end at above-mentioned power amplifier applies the available driving voltage of above-mentioned baking oven to the described power amplifier of linear surplus, in portable terminal modulator-demodulator MSM, set with Tx AGC table in the power amplifier output power rank send the step of the potential pulse delta modulation PAM voltage of signals value that automatic gaining controling signal mates mutually one by one one to one;
According to the received power rank that receives from the base station, above-mentioned portable terminal modulator-demodulator MSM is added to the step that rf terminal is RFT to the transmission automatic gaining controling signal in the Tx AGC table;
The PDM voltage of signals value that the value of the above-mentioned transmission automatic gaining controling signal during MSM will show with Tx AGC is mated one to one is as the controlled variable signal that is input to DC-DC converter, thereby the output voltage V cc of above-mentioned DC to DC converter is changed, and the voltage vcc an of the best drive the step of PAM.
As mentioned above, at mobile communication terminal and control method with PAM driving voltage changeable, the present invention has following effect, promptly, driving voltage source Vcc as PAM, utilize the DC/DC transducer to change, thereby can improve the efficient of PAM and reduce the power that consumes according to the driving voltage of PAM output voltage rank to PAM.And the efficient of increase can correspondingly reduce the heat that is produced, and makes the service time that can just can increase battery by less power consumption.
Description of drawings
Fig. 1 is the structured flowchart of the mobile communication terminal major part of PAM driving voltage mode of the prior art;
Fig. 2 is the drawing of the Tx AGC table of RAS RAM;
Fig. 3 is the mobile communication terminal with PAM driving voltage changeable among the present invention and the structured flowchart of control method;
Fig. 4 is the drawing that shows the consumed power improvement rate among the present invention.
The symbol description of＜accompanying drawing major part 〉
110: battery 120: DC-DC converter (DC/DC converter)
130:PAM 140: duplexer (duplexer)
150:RFT (rf terminal) 160:MSM (portable terminal modulator-demodulator)
Embodiment
With reference to the accompanying drawings the useful embodiment among the present invention is described.
Fig. 3 is the mobile communication terminal with PAM driving voltage changeable among the present invention and the structured flowchart of control method; Fig. 4 is the drawing that shows the consumed power improvement rate among the present invention.
As shown in the figure, include among the present invention: battery 110, DC-DC converter 120, PAM130, duplexer 140, RFT150 and MSM160.
Above-mentioned MSM (Mobile Station Modem-portable terminal modulator-demodulator) 160 has the similar central processing function with the CPU (Central Processing Unit-central processing unit) of computer, and plays the most key important function in portable terminal device; 100 of above-mentioned duplexers communicate by antenna and base station.
For above-mentioned PAM130 is driven with optimal drive voltage, the output voltage of DC-DC converter 120 is used as driving voltage Vcc.Simultaneously, above-mentioned MSM160 imports controlled variable signals (Ref.IN) to DC-DC converter 120, thereby changes the output voltage of above-mentioned DC-DC converter 120.
In addition, according to the PA_R0 signal of MSM160, the pattern of PAM130 is divided into high level (28-16dBm) and two kinds of patterns of low level (16--55dBm) drive.
When two Tx AGC tables that use RAS RAM as shown in Figure 2, when moving under the high-power mode of 28-16dBm scope, with reference to the 1. zone of table 1, above-mentioned MSM160 will transmit transmit control signal (tx_agc_adj) to RFT150.Simultaneously, the PDM control signal that will mate (Matching) in pairs sends above-mentioned DC-DC converter 120 to as controlled variable signal (Ref.IN).
In addition, when moving under the low-power mode of 16--55dBm scope, with reference to the 2. zone of table 2, above-mentioned MSM160 will transmit transmit control signal (tx_agc_adj) to RFT150.Simultaneously, the PDM control signal that will mate (Matching) in pairs sends above-mentioned DC-DC converter 120 to as controlled variable signal (Ref.IN).
Below the as above effect of the present invention of structure is described in detail.
At first, the output power level of PAM130 is carried out the linearisation segmentation, and, set and consider that the PAM of linear surplus (Linearity Margin) can use driving voltage according to the power rank of above-mentioned each sectionalization.
Then, for making the optimal drive voltage of transmitted power (Tx Power) the above-mentioned setting of addition according to above-mentioned PAM130, in MSM160, set coupling one to one (Matching) with the corresponding reference of above-mentioned transmitted power in the PDM signal value (with reference to accompanying drawing 2) of Tx AGC tabular value (that is tx agc adj value).
Subsequently, according to the received power rank (Rx Power Level) that from the base station (not shown) receives, above-mentioned MSM160 also will transmit control signal with reference to one in two Tx AGC tables of Fig. 2 and be added to RFT150.
At this moment, with reference to above-mentioned transmitting control signal (tx agc adj), the PDM signal value that above-mentioned MSM160 will mate one to one adds to DC-DC converter 120 mutually as controlled variable signal (Ref.IN).
Thus, according to the controlled variable signal (Ref.IN) of above-mentioned addition, the output voltage of above-mentioned DC-DC converter 120 changes, thereby with the above-mentioned PAM130 of the driven of the best.
More than only be illustrated at the useful embodiment among the present invention, but the present invention is defined in this, in the category that does not exceed basic fundamental thought of the present invention, the operator of relevant industries can carry out various deformation to it.
Claims (2)
1. the adjustable mobile communication terminal of the driving voltage of power amplifier is characterized in that, contains:
Duplexer is by antenna and base station communication;
Power amplifier, i.e. PAM, output links to each other with the input of above-mentioned duplexer;
Mobile communication terminal modulator-demodulator with cpu function, be MSM, the output of the power amplifier PAM pattern drive voltage signal PA_RO of described MSM links to each other with the PA_RO signal input part of above-mentioned power amplifier, the output power level of power amplifier is considered the linearisation segmentation of linear surplus when described mobile communication terminal modulator-demodulator, and according to the power rank of described this each sectionalization, after the special-purpose driving voltage of the described power amplifier of above-mentioned linear surplus is considered in setting, send to described power amplifier with the form of PA_RO signal;
Rf terminal, be RFT, the input that transmits control signal links to each other with the output of the transmission automatic gaining controling signal Tx AGC of the transmitter of above-mentioned mobile communication terminal modulator-demodulator, the value of described Tx AGC signal obtains from Tx AGC table, in Tx AGC table, the value of Tx AGC signal wherein is the transmit power level with above-mentioned duplexer, promptly mate one to one with the output power level of power amplifier PAM, the rank of the power that receives from the base station then is consistent with the transmit power level of above-mentioned duplexer; The transmission signal output part of above-mentioned rf terminal links to each other with the transmission signal input part of above-mentioned power amplifier;
DC-DC converter, battery-powered, this transducer pulse increment control is that the PDM signal input part links to each other with the PDM signal output part of above-mentioned mobile communication terminal modulator-demodulator, and described PDM voltage of signals value is that the value of the Tx AGC signal during above-mentioned mobile communication terminal modulator-demodulator is shown with reference to above-mentioned Tx AGC obtains; The pulse-width modulation PWM signal output part of above-mentioned DC-DC converter links to each other with the driving voltage Vcc input of above-mentioned power amplifier.
2. the control method of the adjustable mobile communication terminal of the driving voltage of power amplifier is characterized in that it contains following steps successively:
The output power level of power amplifier is considered the linearisation segmentation of linear surplus, and, set the step that the described power amplifier of having considered above-mentioned linear surplus can be used driving voltage according to described each power rank of segmenting;
For the power end at above-mentioned power amplifier applies the above-mentioned available driving voltage of considering the described power amplifier of linear surplus, in mobile communication terminal modulator-demodulator MSM, set the step of modulating the magnitude of voltage of PAM output signal with the voltage pulse increment, wherein this magnitude of voltage with send the auto-increment control signal and mate one by one, and this transmission auto-increment control signal be the power amplifier in showing with TxAGC the power rank one to one;
According to the received power rank that receives from the base station, above-mentioned portable terminal modulator-demodulator MSM is added to rf terminal to the transmission automatic gaining controling signal in the Tx AGC table, i.e. the step of RFT;
The PDM voltage of signals value that the value of the above-mentioned transmission automatic gaining controling signal during MSM will show with Tx AGC is mated one to one is as the controlled variable signal that is input to DC-DC converter, thereby the output voltage V cc of above-mentioned DC-DC converter is changed, and drive the step of PAM with the voltage vcc of the best.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040078353A KR20060029423A (en) | 2004-10-01 | 2004-10-01 | Mobile station having pam drive voltage changed function and method thereof |
| KR1020040078353 | 2004-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1756099A CN1756099A (en) | 2006-04-05 |
| CN100399714C true CN100399714C (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100889331A Expired - Fee Related CN100399714C (en) | 2004-10-01 | 2005-08-03 | Mobile communication terminal with adjustable driving voltage of power amplifier and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060029423A (en) |
| CN (1) | CN100399714C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237242B (en) * | 2008-02-27 | 2012-11-21 | 华为技术有限公司 | An antenna feedback adaptation device and method |
| CN101908902A (en) * | 2009-06-08 | 2010-12-08 | 深圳富泰宏精密工业有限公司 | Wireless communication device and power amplification efficiency control module thereof |
| CN101710925A (en) * | 2009-12-14 | 2010-05-19 | 深圳华为通信技术有限公司 | Device and method for lowering power consumption of complete machine |
| EP2557681B1 (en) | 2010-04-09 | 2019-09-04 | Huawei Device Co., Ltd. | Voltage driving apparatus for power amplifier, power amplifying system, power supply device for radio frequency power amplifier and communication device |
| WO2012000131A1 (en) * | 2010-06-29 | 2012-01-05 | 宏瞻科技股份有限公司 | Method for laser signal modulation |
| CN102314055A (en) * | 2010-06-29 | 2012-01-11 | 宏瞻科技股份有限公司 | Laser signal modulation method |
| CN105406878B (en) * | 2015-11-26 | 2019-04-12 | 杭州众传数字设备有限公司 | Frequency modulation transmitter is adjusted in voltage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178313B1 (en) * | 1998-12-31 | 2001-01-23 | Nokia Mobile Phones Limited | Control of gain and power consumption in a power amplifier |
| WO2001073975A1 (en) * | 2000-03-29 | 2001-10-04 | Interdigital Technology Corporation | Dynamic bias for rf power amplifiers |
| US20020175764A1 (en) * | 2001-04-16 | 2002-11-28 | Toru Matsuura | Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communication |
| US20020193134A1 (en) * | 2001-06-07 | 2002-12-19 | Lg Electronics Inc. | Power control apparatus for mobile terminal |
-
2004
- 2004-10-01 KR KR1020040078353A patent/KR20060029423A/en not_active Application Discontinuation
-
2005
- 2005-08-03 CN CNB2005100889331A patent/CN100399714C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178313B1 (en) * | 1998-12-31 | 2001-01-23 | Nokia Mobile Phones Limited | Control of gain and power consumption in a power amplifier |
| WO2001073975A1 (en) * | 2000-03-29 | 2001-10-04 | Interdigital Technology Corporation | Dynamic bias for rf power amplifiers |
| US20020175764A1 (en) * | 2001-04-16 | 2002-11-28 | Toru Matsuura | Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communication |
| US20020193134A1 (en) * | 2001-06-07 | 2002-12-19 | Lg Electronics Inc. | Power control apparatus for mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060029423A (en) | 2006-04-06 |
| CN1756099A (en) | 2006-04-05 |
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Granted publication date: 20080702 |