CN102404020A - Power amplification module, multimode radio frequency transceiver and multimode terminal - Google Patents
Power amplification module, multimode radio frequency transceiver and multimode terminal Download PDFInfo
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- CN102404020A CN102404020A CN201110346135XA CN201110346135A CN102404020A CN 102404020 A CN102404020 A CN 102404020A CN 201110346135X A CN201110346135X A CN 201110346135XA CN 201110346135 A CN201110346135 A CN 201110346135A CN 102404020 A CN102404020 A CN 102404020A
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- 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
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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
- H04B1/0053—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 common antenna for more than one band
- H04B1/0057—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 common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
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Abstract
The invention provides a power amplification module, a multimode radio frequency transceiver, a radio frequency front-end module, a multimode terminal and a signal transmitting method of the multimode terminal. The power amplification module comprises a control module, a low-frequency amplifier and a high-frequency amplifier which are connected with the control module, wherein the control module is used for transmitting working mode indication signals to the low-frequency amplifier and the high-frequency amplifier according to a control signal from a baseband chip; the low-frequency amplifier is used for receiving a low-frequency transmitting signal and the working mode indication signal transmitted by the control module, then amplifying the low-frequency transmitting signal in an working mode indicated by the working mode indication signal and finally outputting the amplified low-frequency transmitting signal; and the high-frequency amplifier is used for receiving a high-frequency transmitting signal and the working mode indication signal transmitted by the control module, then amplifying the high-frequency transmitting signal in the working mode indicated by the working mode indication signal and finally outputting the amplified high-frequency transmitting signal. The area of a PCB (Printed Circuit Board) occupied by the multimode terminal comprising the power amplification module is effectively reduced.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the method that a kind of power amplifier module, multi-mode radio frequency transceiver, RF front-end module, multimode terminal and multimode terminal send signal.
Background technology
Current; At TD SDMA (TD-SCDMA)/global system for mobile communications (Global System for Mobile Communication; GSM) in the architectural schemes of dual-mode handset; General implementation method is; As shown in Figure 1, need baseband chip 100, duplexer module 200, GSM RF transceiver 300, GSM power amplifier 310, TD-SCDMA RF transceiver 400, TD-SCDMA power amplifier 410, at least one GSM receiving filter (RX SAW) 500 and at least one TD-SCDMA receiving filter 510.
Above architectural schemes need be used the chip more than eight, and this makes circuit structure complicated, has taken a large amount of printed circuit board (PCB) (PCB) area, is unfavorable for reducing cost, and also is unfavorable for realizing the miniaturization at terminal.
Summary of the invention
The embodiment of the invention provides a kind of power amplifier module, multi-mode radio frequency transceiver, RF front-end module, multimode terminal and multimode terminal to send the method for signal, takies the big problem of PCB area to solve existing multimode terminal.
The embodiment of the invention provides a kind of power amplifier module, is applied to the transmission channel of multimode terminal, and this power amplifier module comprises control module and the low frequency amplifier and the high-frequency amplifier that link to each other with said control module, wherein:
Said control module is used for sending the mode of operation index signal according to the control signal from baseband chip to said low frequency amplifier or said high-frequency amplifier;
Said low frequency amplifier is used to receive the mode of operation index signal that low frequencies signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said low frequencies signal is amplified back output;
Said high-frequency amplifier is used to receive the mode of operation index signal that high-frequency emission signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said high-frequency emission signal is amplified back output.
Preferably, said control module is to be used for when the signal of said control signal indication current emission passage is the low frequencies signal of first mode signal, sending the saturation operation mode index signal to said low frequency amplifier; When the signal in the said control signal indication current emission passage is second mode signal, send the linear operation mode index signal to said high-frequency amplifier; Perhaps, when the signal in the said control signal indication current emission passage is the high-frequency emission signal of first mode signal, send the saturation operation mode index signal to said high-frequency amplifier.
Preferably, said first mode signal is global system for mobile communications (GSM) signal;
Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
The embodiment of the invention also provides a kind of multi-mode radio frequency transceiver, is applied to multimode terminal, and this multi-mode radio frequency transceiver comprises:
Frequency translation module; Be used under the control of said baseband chip; The base band transmit of first mode signal that said baseband chip is sent is transformed into low frequencies signal or high-frequency emission signal, and the base band transmit of second mode signal that said baseband chip is sent is transformed into the high-frequency emission signal;
Output module, the said low frequencies signal that is used for said frequency translation module is transformed into is exported the said high-frequency emission signal that said frequency translation module is transformed into through the output of low-frequency range emission port through the high band emission port.
Preferably, said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
The embodiment of the invention also provides a kind of RF front-end module, is applied to multimode terminal, and said RF front-end module comprises duplexer module, first filter and second filter, wherein:
Said first filter is used to receive first pattern reception signal that said duplexer module sends, and said first pattern is received signal carry out exporting after the filtering;
Said second filter is used to receive second pattern reception signal that said duplexer module sends, and said second pattern is received signal carry out exporting after the filtering;
Said duplexer module; Be used to receive the low frequencies signal of first mode signal or the high-frequency emission signal or second mode signal of first mode signal, and send said first pattern reception signal and send said second pattern reception signal to said second filter to said first filter.
Preferably, said first pattern reception signal is that global system for mobile communications (GSM) receives signal; It is that TD SDMA (TD-SCDMA) receives signal or personal handhold telephone system (PHS) receives signal that said second pattern receives signal; And/or
Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
The embodiment of the invention provides a kind of multimode terminal, comprises the baseband chip, multi-mode radio frequency transceiver, power amplifier module and the RF front-end module that connect successively, wherein:
What said multi-mode radio frequency transceiver adopted is above-mentioned multi-mode radio frequency transceiver;
What said power amplifier module adopted is above-mentioned power amplifier module;
What said RF front-end module adopted is above-mentioned RF front-end module.
The embodiment of the invention also provides a kind of multimode terminal; Comprise the baseband chip, multi-mode radio frequency transceiver, power amplifier module and the RF front-end module that connect successively, said multimode terminal also comprises the switching circuit between said multi-mode radio frequency transceiver and power amplifier module;
What said power amplifier module adopted is above-mentioned power amplifier module;
What said RF front-end module adopted is above-mentioned RF front-end module;
Said switching circuit; The low frequencies signal of first mode signal that is used for said multi-mode radio frequency transceiver is sent switches to the low frequency amplifier of said power amplifier module; The high-frequency emission signal or second mode signal of first mode signal that perhaps, said multi-mode radio frequency transceiver is sent switch to the high-frequency amplifier in the said power amplifier module.
The embodiment of the invention also provides a kind of multimode terminal to send the method for signal, and this method comprises:
Power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of the low frequencies signal of first mode signal that receives or first mode signal under the control of baseband chip; Perhaps, power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip;
Said RF front-end module sends the signal that receives.
Preferably, said power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip, comprising:
High-frequency amplifier in the said power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip; Perhaps,
Said power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of the low frequencies signal of first mode signal that receives or first mode signal under the control of baseband chip, comprising:
Low frequency amplifier in the said power amplifier module exports RF front-end module to after saturation operation mode amplifies the low frequencies signal of first mode signal that receives under the control of baseband chip; Perhaps
High-frequency amplifier in the said power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of first mode signal that receives under the control of baseband chip.
Preferably, before said low frequency amplifier amplified the signal that receives, said method also comprised:
The first pattern base band transmit that the multi-mode radio frequency transceiver sends said baseband chip is transformed into corresponding low frequencies signal, exports said low frequency amplifier then to; Perhaps, switching circuit switches to said low frequency amplifier with the low frequencies signal of first mode signal of multi-mode radio frequency transceiver transmission; Perhaps
Before said high-frequency amplifier amplified the signal that receives, said method also comprised:
The multi-mode radio frequency transceiver is transformed into corresponding high-frequency emission signal with the first pattern base band transmit or the second pattern base band transmit that said baseband chip sends, and exports said high-frequency amplifier then to; Perhaps, switching circuit switches to said high-frequency amplifier with the high-frequency emission signal or second mode signal of first mode signal of said multi-mode radio frequency transceiver transmission.
Preferably, said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
The above-mentioned power amplifier module that comprises low frequency amplifier and high-frequency amplifier; Radiofrequency signal through with various patterns and various frequency bands only is divided into low frequency signal and high-frequency signal; And by corresponding amplifier it is amplified, saved the quantity of power amplifier effectively; And then reduced the area of the shared PCB of the multimode terminal that comprises above-mentioned power amplifier module effectively.
Description of drawings
Fig. 1 is existing TD-SCDMA/GSM dual-mode handset configuration diagram;
Fig. 2 is the configuration diagram of dual-mode terminal embodiment one of the present invention;
Fig. 3 is that the bimodulus power amplifier module of the embodiment of the invention and the inside structure and the signal thereof of RF front-end module are connected sketch map;
Fig. 4 is the configuration diagram of dual-mode terminal embodiment two of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The embodiment of the invention provides a kind of power amplifier module, is applied to the transmission channel of multimode terminal, and this power amplifier module comprises control module and the low frequency amplifier and the high-frequency amplifier that link to each other with said control module, wherein:
Said control module is used for sending the mode of operation index signal according to the control signal from baseband chip to said low frequency amplifier or said high-frequency amplifier;
Said low frequency amplifier is used to receive the mode of operation index signal that low frequencies signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said low frequencies signal is amplified back output;
Said high-frequency amplifier is used to receive the mode of operation index signal that high-frequency emission signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said high-frequency emission signal is amplified back output.
Wherein, said control module is to be used for when the signal of said control signal indication current emission passage is the low frequencies signal of first mode signal, sending the saturation operation mode index signal to said low frequency amplifier; When the signal in the said control signal indication current emission passage is second mode signal, send the linear operation mode index signal to said high-frequency amplifier; Perhaps, when the signal in the said control signal indication current emission passage is the high-frequency emission signal of first mode signal, send the saturation operation mode index signal to said high-frequency amplifier.Above-mentioned low frequency amplifier is to be used to receive the low frequencies signal of first mode signal and the saturation operation mode index signal that said control module is sent, and the low frequencies signal to said first mode signal under saturation operation mode amplifies back output.Above-mentioned high-frequency amplifier is to be used to receive the high-frequency emission signal of first mode signal and the saturation operation mode index signal that said control module is sent, and the high-frequency emission signal to said first mode signal under saturation operation mode amplifies back output; Perhaps, receive the linear operation mode index signal that second mode signal and said control module are sent, under linear operation mode, said second mode signal is amplified back output.
Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
Need to prove that above-mentioned first mode signal for example TD-SCDMA signal has only high-frequency signal not have low frequency signal, therefore, for TD-SCDMA transmits, can only through high-frequency amplifier under linear operation mode, it be amplified; And the second mode signal existing high-frequency signal of GSM signal for example has low frequency signal again, then needs respectively to amplify through high-frequency amplifier and the low frequency amplifier signal to correspondence.
In addition, those skilled in the art knows that all low frequencies signal of mentioning in the embodiment of the invention and high-frequency emission signal are relative notions, i.e. the frequency range frequency of low frequencies signal covering is lower than the frequency range frequency that the high-frequency emission signal covers.
This power amplifier module can be the GSM/TD-SCDMA power amplifier module; This module is not with traditional G SM and the TD-SCDMA power amplifier is integrated simply is encapsulated in the chip, but includes only low frequency and two power amplifiers of high frequency and a control module.Promptly the signal input port of this bimodulus power amplifier module is not according to GSM and TD-SCDMA signal allocation, but is divided into low frequency and two signal ports of high frequency; Equally, output port also only is divided into low frequency and two signal ports of high frequency.This power amplifier is controlled in linear operation mode when amplifying the TD-SCDMA signal; When amplifying the GSM signal, be controlled in saturation operation mode.
The above-mentioned power amplifier module that comprises low frequency amplifier and high-frequency amplifier; Radiofrequency signal through with various patterns and various frequency bands only is divided into low frequency signal and high-frequency signal; And it is amplified by corresponding amplifier; Save the quantity of power amplifier effectively, reduced the area that power amplifier module takies PCB effectively.
In order to realize the function of above-mentioned power amplifier, the embodiment of the invention also provides a kind of multi-mode radio frequency transceiver, is applied to multimode terminal, and this multi-mode radio frequency transceiver comprises:
Frequency translation module; Be used under the control of said baseband chip; The base band transmit of first mode signal that said baseband chip is sent is transformed into low frequencies signal or high-frequency emission signal, and the base band transmit of second mode signal that said baseband chip is sent is transformed into the high-frequency emission signal;
Output module, the said low frequencies signal that is used for said frequency translation module is transformed into is exported the said high-frequency emission signal that said frequency translation module is transformed into through the output of low-frequency range emission port through the high band emission port.
Wherein, said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
The embodiment of the invention also provides a kind of RF front-end module, is applied to multimode terminal, and said RF front-end module comprises duplexer module, first filter and second filter, wherein:
Said first filter is used to receive first pattern reception signal that said duplexer module sends, and said first pattern is received signal carry out exporting after the filtering;
Said second filter is used to receive second pattern reception signal that said duplexer module sends, and said second pattern is received signal carry out exporting after the filtering;
Said duplexer module; Be used to receive the low frequencies signal of first mode signal or the high-frequency emission signal or second mode signal of first mode signal, and send said first pattern reception signal and send said second pattern reception signal to said second filter to said first filter.
Wherein, said first pattern reception signal is that global system for mobile communications (GSM) receives signal; It is that TD SDMA (TD-SCDMA) receives signal or personal handhold telephone system (PHS) receives signal that said second pattern receives signal; Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
As shown in Figure 2; Be the configuration diagram of dual-mode terminal embodiment one of the present invention, this dual-mode terminal comprises: baseband chip 100, TD-SCDMA/GSM bimodulus RF transceiver 200, TD-SCDMA/GSM bimodulus power amplifier module 300 and above-mentioned RF front-end module 400; Wherein the structure of TD-SCDMA/GSM bimodulus RF transceiver 200 and TD-SCDMA/GSM bimodulus power amplifier module 300 is as shown in Figure 3.
The bimodulus RF transceiver of bimodulus power amplifier module collocation and prior art scheme also have differently therewith, and its output port is divided according to low frequency LB and high frequency HB, no longer distinguishes because of the signal difference.
As shown in Figure 3; For the bimodulus power amplifier module of the embodiment of the invention and the inside structure and the signal thereof of RF front-end module are connected sketch map; Wherein, RF front-end module 400 mainly is made up of three parts: duplexer module 401, GSM receive SAW filter (RX SAW) 402 and TD-SCDMARX SAW 403.
In the reception link of the dual-mode terminal of above-mentioned framework; Electromagnetic wave signal receives laggard duplexer module 401 of going in the radio frequency front-end module 400 by antenna; Under the control of baseband chip 100; The duplexer module is selected the corresponding vein relaxing that receives, and the GSM radiofrequency signal is sent into GSM receiving filter (GSM RX SAW) 402; The TD-SCDMA radiofrequency signal is sent into TD-SCDMA receiving filter (TD-SCDMA RX SAW) 403.Filtered radiofrequency signal gets into bimodulus RF transceiver 200.Said bimodulus RF transceiver 200 adopts the zero intermediate frequency reception programme, and the radiofrequency signal Direct Conversion that receives to baseband I/Q signal, is sent into baseband chip 100, and accomplishes processing such as demodulation, decoding by baseband chip 100, restores primary signal.
And in the transmitting chain of above-mentioned framework dual-mode terminal; Processing such as the coding of baseband chip 100 completion primary signals, modulation; Obtain the i/q signal of GSM or TD-SCDMA; Send in the bimodulus RF transceiver 200, the radiating portion in the bimodulus RF transceiver 200 adopts the up-conversion scheme of Direct Transform, obtains rf modulated signal after the i/q signal completion change process to input.The output port of bimodulus RF transceiver 200 is different with the TD-SCDMA signal and distinguish not according to GSM, only is divided into two output ports of low frequency and high frequency.Low frequency (Low band, LB) or high frequency (high band, HB) rf modulated signal gets into the low frequency or the high frequency input terminal of bimodulus power amplifier 300 respectively through after the emission filter.The frequency range that LB transmits is from 824MHz to 915MHz, and the frequency range that HB transmits is from 1710MHz to 2025MHz.Simultaneously; Baseband chip is seen control signal off, when amplifying the GSM signal, and the quiescent point of regulatory work rate amplifier; Make it be operated in the C class; Regulate the radio frequency power output of RF transceiver simultaneously, the driving power amplifier gets into saturated, can guarantee that like this amplifier reaches high efficiency when amplifying the GSM signal; When amplifying the TD-SCDMA signal; The quiescent point of control signal regulatory work rate amplifier makes it be operated in the AB class, regulates the radio frequency power output of RF transceiver simultaneously; This moment, power amplifier was operated in linear condition, can guarantee that TD-SCDMA each item RF index meets the demands.
Particularly, the method for above-mentioned multimode terminal transmission signal comprises:
Step 1, power amplifier module export RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of the low frequencies signal of first mode signal that receives or first mode signal under the control of baseband chip; Perhaps, power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip;
Particularly, the high-frequency amplifier in the said power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip; Perhaps, the low frequency amplifier in the said power amplifier module exports RF front-end module to after saturation operation mode amplifies the low frequencies signal of first mode signal that receives under the control of baseband chip; High-frequency amplifier in the perhaps said power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of first mode signal that receives under the control of baseband chip.
In addition, before said low frequency amplifier amplified the signal that receives, said method also comprised:
The first pattern base band transmit that the multi-mode radio frequency transceiver sends said baseband chip is transformed into corresponding low frequencies signal, exports said low frequency amplifier then to; Perhaps, switching circuit switches to said low frequency amplifier with the low frequencies signal of first mode signal of multi-mode radio frequency transceiver transmission; Perhaps
Before said high-frequency amplifier amplified the signal that receives, said method also comprised:
The multi-mode radio frequency transceiver is transformed into corresponding high-frequency emission signal with the first pattern base band transmit or the second pattern base band transmit that said baseband chip sends, and exports said high-frequency amplifier then to; Perhaps, switching circuit switches to said high-frequency amplifier with the high-frequency emission signal or second mode signal of first mode signal of said multi-mode radio frequency transceiver transmission.
Step 2, said RF front-end module send the signal that receives, the low frequencies signal that this signal that receives is said first mode signal, the high-frequency emission signal of first mode signal or second mode signal.
Particularly, the radiofrequency signal after the power amplification is admitted to the duplexer module 401 in the RF front-end module 400, and duplexer module 401 receives the control of baseband chip 100, selects corresponding emission path, radiofrequency signal is sent into the main antenna of mobile phone.
Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
As shown in Figure 4; Configuration diagram for dual-mode terminal embodiment two of the present invention; The difference of itself and dual-mode terminal shown in Figure 2 is; TD-SCDMA/GSM bimodulus RF transceiver 200 is still continued to use the transceiver scheme of prior art, and promptly output port is still divided according to TD-SCDMA and GSM signal.The RF output end of TD-SCDMA/GSM bimodulus RF transceiver 200 is earlier through a switching circuit 500, and this switching circuit will transmit and switch to low frequency LB or the output of high frequency HB two-way, deliver in the TD-SCDMA/GSM bimodulus power amplifier module 300.
The multimode terminal that comprises above-mentioned power amplifier module than the framework of present use, has reduced by two large chips at least, and circuit connects greatly simplification simultaneously, has reduced the area that takies PCB effectively, helps realizing the miniaturization at terminal.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said procedure can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (13)
1. power amplifier module is applied to the transmission channel of multimode terminal, it is characterized in that this power amplifier module comprises control module and the low frequency amplifier and the high-frequency amplifier that link to each other with said control module, wherein:
Said control module is used for sending the mode of operation index signal according to the control signal from baseband chip to said low frequency amplifier or said high-frequency amplifier;
Said low frequency amplifier is used to receive the mode of operation index signal that low frequencies signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said low frequencies signal is amplified back output;
Said high-frequency amplifier is used to receive the mode of operation index signal that high-frequency emission signal and said control module are sent, and under the mode of operation of said mode of operation index signal indication, said high-frequency emission signal is amplified back output.
2. power amplifier module according to claim 1 is characterized in that:
Said control module is to be used for when the signal of said control signal indication current emission passage is the low frequencies signal of first mode signal, sending the saturation operation mode index signal to said low frequency amplifier; When the signal in the said control signal indication current emission passage is second mode signal, send the linear operation mode index signal to said high-frequency amplifier; Perhaps, when the signal in the said control signal indication current emission passage is the high-frequency emission signal of first mode signal, send the saturation operation mode index signal to said high-frequency amplifier.
3. power amplifier module according to claim 2 is characterized in that:
Said first mode signal is global system for mobile communications (GSM) signal;
Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
4. a multi-mode radio frequency transceiver is applied to multimode terminal, it is characterized in that, this multi-mode radio frequency transceiver comprises:
Frequency translation module; Be used under the control of said baseband chip; The base band transmit of first mode signal that said baseband chip is sent is transformed into low frequencies signal or high-frequency emission signal, and the base band transmit of second mode signal that said baseband chip is sent is transformed into the high-frequency emission signal;
Output module, the said low frequencies signal that is used for said frequency translation module is transformed into is exported the said high-frequency emission signal that said frequency translation module is transformed into through the output of low-frequency range emission port through the high band emission port.
5. multi-mode radio frequency transceiver according to claim 4 is characterized in that:
Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
6. a RF front-end module is applied to multimode terminal, it is characterized in that, said RF front-end module comprises duplexer module, first filter and second filter, wherein:
Said first filter is used to receive first pattern reception signal that said duplexer module sends, and said first pattern is received signal carry out exporting after the filtering;
Said second filter is used to receive second pattern reception signal that said duplexer module sends, and said second pattern is received signal carry out exporting after the filtering;
Said duplexer module; Be used to receive the low frequencies signal of first mode signal or the high-frequency emission signal or second mode signal of first mode signal, and send said first pattern reception signal and send said second pattern reception signal to said second filter to said first filter.
7. RF front-end module according to claim 6 is characterized in that:
It is that global system for mobile communications (GSM) receives signal that said first pattern receives signal; It is that TD SDMA (TD-SCDMA) receives signal or personal handhold telephone system (PHS) receives signal that said second pattern receives signal; And/or
Said first mode signal is global system for mobile communications (GSM) signal; Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
8. a multimode terminal comprises the baseband chip, multi-mode radio frequency transceiver, power amplifier module and the RF front-end module that connect successively, it is characterized in that:
What said multi-mode radio frequency transceiver adopted is like claim 4 or 5 described multi-mode radio frequency transceivers;
What said power amplifier module adopted is like claim 1 or 2 or 3 described power amplifier modules;
What said RF front-end module adopted is like claim 6 or 7 described RF front-end modules.
9. multimode terminal; Comprise the baseband chip, multi-mode radio frequency transceiver, power amplifier module and the RF front-end module that connect successively; It is characterized in that said multimode terminal also comprises the switching circuit between said multi-mode radio frequency transceiver and power amplifier module;
What said power amplifier module adopted is like claim 1 or 2 or 3 described power amplifier modules;
What said RF front-end module adopted is like claim 6 or 7 described RF front-end modules;
Said switching circuit; The low frequencies signal of first mode signal that is used for said multi-mode radio frequency transceiver is sent switches to the low frequency amplifier of said power amplifier module; The high-frequency emission signal or second mode signal of first mode signal that perhaps, said multi-mode radio frequency transceiver is sent switch to the high-frequency amplifier in the said power amplifier module.
10. a multimode terminal sends the method for signal, and this method comprises:
Power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of the low frequencies signal of first mode signal that receives or first mode signal under the control of baseband chip; Perhaps, power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip;
Said RF front-end module sends the signal that receives.
11. method according to claim 10 is characterized in that:
Said power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip, comprising:
High-frequency amplifier in the said power amplifier module exports RF front-end module to after linear operation mode amplifies second mode signal that receives under the control of baseband chip; Perhaps,
Said power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of the low frequencies signal of first mode signal that receives or first mode signal under the control of baseband chip, comprising:
Low frequency amplifier in the said power amplifier module exports RF front-end module to after saturation operation mode amplifies the low frequencies signal of first mode signal that receives under the control of baseband chip; Perhaps
High-frequency amplifier in the said power amplifier module exports RF front-end module to after saturation operation mode amplifies the high-frequency emission signal of first mode signal that receives under the control of baseband chip.
12. method according to claim 11 is characterized in that:
Before said low frequency amplifier amplified the signal that receives, said method also comprised:
The first pattern base band transmit that the multi-mode radio frequency transceiver sends said baseband chip is transformed into corresponding low frequencies signal, exports said low frequency amplifier then to; Perhaps, switching circuit switches to said low frequency amplifier with the low frequencies signal of first mode signal of multi-mode radio frequency transceiver transmission; Perhaps
Before said high-frequency amplifier amplified the signal that receives, said method also comprised:
The multi-mode radio frequency transceiver is transformed into corresponding high-frequency emission signal with the first pattern base band transmit or the second pattern base band transmit that said baseband chip sends, and exports said high-frequency amplifier then to; Perhaps, switching circuit switches to said high-frequency amplifier with the high-frequency emission signal or second mode signal of first mode signal of said multi-mode radio frequency transceiver transmission.
13., it is characterized in that according to the described method of the arbitrary claim of claim 10-12:
Said first mode signal is global system for mobile communications (GSM) signal;
Said second mode signal is TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110346135XA CN102404020A (en) | 2011-11-04 | 2011-11-04 | Power amplification module, multimode radio frequency transceiver and multimode terminal |
| PCT/CN2012/076057 WO2013063926A1 (en) | 2011-11-04 | 2012-05-25 | Power amplification module, multimode radio frequency transceiver, and multimode terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110346135XA CN102404020A (en) | 2011-11-04 | 2011-11-04 | Power amplification module, multimode radio frequency transceiver and multimode terminal |
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| CN102404020A true CN102404020A (en) | 2012-04-04 |
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| CN201110346135XA Pending CN102404020A (en) | 2011-11-04 | 2011-11-04 | Power amplification module, multimode radio frequency transceiver and multimode terminal |
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| WO (1) | WO2013063926A1 (en) |
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| CN103633949A (en) * | 2012-08-21 | 2014-03-12 | 唯捷创芯(天津)电子技术有限公司 | Multimode power amplifier, multimode switching method and mobile terminal of multimode power amplifier |
| CN105450249A (en) * | 2014-08-30 | 2016-03-30 | 展讯通信（上海）有限公司 | Compatible method for multiple communication modes in mobile terminal and mobile terminal |
| CN105763217A (en) * | 2015-01-05 | 2016-07-13 | 美国莱迪思半导体公司 | Low Power Operations In Wireless Tunneling Transceiver |
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| CN113676207A (en) * | 2021-08-12 | 2021-11-19 | Oppo广东移动通信有限公司 | Transmitting module, radio frequency system and communication equipment |
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| WO2013063926A1 (en) | 2013-05-10 |
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