CN102404021A - Duplex amplifying module, radio frequency front end module and multi-mode terminal - Google Patents
Duplex amplifying module, radio frequency front end module and multi-mode terminal Download PDFInfo
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- CN102404021A CN102404021A CN2011103476603A CN201110347660A CN102404021A CN 102404021 A CN102404021 A CN 102404021A CN 2011103476603 A CN2011103476603 A CN 2011103476603A CN 201110347660 A CN201110347660 A CN 201110347660A CN 102404021 A CN102404021 A CN 102404021A
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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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- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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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
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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Abstract
The invention provides a duplex amplifying module, a multi-mode terminal, a radio frequency front end module, a multi-mode radio frequency receiving and sending chip, and a method for sending a signal of the multi-mode terminal. The duplex amplifying module includes a power amplifier and a duplexer, wherein the power amplifier is used for amplifying signals in any one of at least two frequency ranges of input various forms of signals and then outputting the amplified signals to the duplex; the duplex is used for outputting the signals amplified by the power amplifier, and/or for filtering signals in any one of at least two frequency ranges of received various forms of signals and then outputting the filtered signals. The duplex amplifying module and the multi-mode terminal comprising the same provided by the invention simplify radio frequency receiving and sending paths and greatly increase integration of the multi-mode terminal, therefore, the multi-mode terminal takes up a smaller area of a Printed Circuit Board (PCB).
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the method that a kind of duplexing amplification module, multimode terminal, RF front-end module, multi-mode radio frequency transceiving chip and multimode terminal send signal.
Background technology
In the mobile communication system, the radio-frequency front-end of mobile phone terminal is a Primary Component of realizing the signal transmitting transceiver now, and along with communication multimode multi-modulation schemeization, radio-frequency front-end is being undertaken the effect of multiple standard multimode signal transmitting and receiving.Development along with 3G (Third Generation) Moblie technology (3G), Long Term Evolution (LTE); Current telecom operators use a plurality of different systems; The pattern and the frequency range of each standard also have nothing in common with each other; The standard of main flow mainly contains global system for mobile communications (Global System for Mobile Communication; GSM), code division multiple access system (Code Division Multiple Access; CDMA), broadband CDMA system (Wideband Code Division Multiple Access, WCDMA), TDS-CDMA system (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), CDMA2000 and LTE.
Traditional G SM/WCDMA dual-mode terminal comprises main antenna, antenna match, duplexer module, duplexer, radio frequency amplifier (RFPA), SAW filter (SAW), rf chip etc.The transmitting-receiving behavior of WCDMA and GSM is separately carried out; The reception behavior of gsm system is to receive signal through the GSM main antenna to carry out signal processing through wave filter SAW to rf chip (transceiver) via match circuit again to duplexer module module, and the emission behavior of gsm system is through rf chip (transceiver) signal to be sent to radio frequency amplifier (RFPA) to amplify after launched to the GSM main antenna by duplexer module, match circuit; And the reception behavior of WCDMA system receives signal by the WCDMA main antenna and is transformed into to the duplexer module to duplexer via match circuit and receives the road and carry out signal processing to rf chip (transceiver) again, the emission behavior of WCDMA system by rf chip (transceiver) export signal to duplexer again to the duplexer module, mate and launch by the WCDMA main antenna.GSM main antenna here and WCDMA main antenna can synthesize one, also can design separately, and the rf chip of WCDMA and GSM (transceiver) can synthesize, and also can be separately independently.
As shown in Figure 1; It is the configuration diagram of existing GSM/WCDMA dual-mode terminal; Wherein the reception behavior of WCDMA frequency range (band) 1 system is to receive signal through main antenna 101, gets into rf chip 113 to duplexer 107 backs to receiving the road via duplexer module 102 again; The reception behavior of WCDMA band1 system is to output to radio frequency amplifier 110 by rf chip 113 emissions, and signal is amplified into duplexer 107 and is getting into duplexer module 102 by main antenna 101 emissions; GSM radio frequency system emission be the GSM high-frequency signal is input to corresponding frequency band by rf chip 113 radio frequency amplifier 105 again via duplexer module 102 by main antenna 101 emissions, the GSM radio frequency system receives and receives channel by main antenna 101 and be sent to duplexer module 102 and arrive rf chip 113 through SAW filter 103 filtering.The WCDMA of other frequency ranges, GSM receive-transmit system operation class are similar to above description.
For the design of the design of mobile phone, particularly RF front-end module, the more next bigger integrated level that this also requires to design of complexity is increasingly high, and the design of existing RF front end structure is also comparatively complicated, integrated further and the simplification trend that is inevitable.
Summary of the invention
The method that the embodiment of the invention provides a kind of duplexing amplification module, RF front-end module, multimode terminal, multi-mode radio frequency transceiving chip and multimode terminal to send signal, higher to solve existing multimode terminal complexity, the problem that integrated level is lower.
The embodiment of the invention provides a kind of duplexing amplification module, is applied to the transceiver channel of multimode terminal, and said duplexing amplification module comprises power amplifier and duplexer, wherein:
Said power amplifier is used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the various mode signals of input amplifies;
Said duplexer is used to export the signal from after the said power amplifier amplification; And/or, the signal of arbitrary frequency range at least two frequency ranges of the various mode signals that receive is carried out exporting after the filtering.
Preferably, said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the low frequencies signal of the various mode signals of input amplifies.
Preferably, said duplexer comprises emission filter and receiving filter, wherein:
Said emission filter links to each other with said power amplifier, is used to export the low frequencies signal from after the said power amplifier amplification;
Said receiving filter is used for the signal that low frequency to the various mode signals that receive receives at least two arbitrary frequency ranges of frequency range of signal and carries out exporting after the filtering.
Preferably, said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the high-frequency emission signal of the various mode signals of input amplifies.
Preferably, said duplexer comprises emission filter and receiving filter, wherein:
Said emission filter links to each other with said power amplifier, is used to export the high-frequency emission signal from after the said power amplifier amplification;
Said receiving filter is used for the signal of at least two arbitrary frequency ranges of frequency range of the high-frequency received signal of the various mode signals that receive is carried out exporting after the filtering.
Preferably, said various mode signal comprises WCDMA (WCDMA) signal, code division multiple access (CDMA) signal, TD SDMA (TD-SCDMA) signal and global system for mobile communications (GSM) signal.
The embodiment of the invention also provides a kind of RF front-end module, comprises the duplexer module, also comprises the above-mentioned duplexing amplification module that links to each other with said duplexer module and/or above-mentioned duplexing amplification module; Perhaps, link to each other with said duplexer module like above-mentioned duplexing amplification module.
The embodiment of the invention provides a kind of multi-mode radio frequency transceiving chip, and this multi-mode radio frequency transceiving chip comprises:
Separation module is used for various mode signals are divided into low frequencies signal or high-frequency emission signal;
Output module is used to export said low frequencies signal or the said high-frequency emission signal that said separation module is divided into.
The embodiment of the invention provides a kind of multimode terminal, comprises the multi-mode radio frequency transceiving chip, duplexing amplification module and the duplexer module that connect successively, wherein:
What said duplexing amplification module adopted is above-mentioned low frequency duplex amplification module and/or above-mentioned high frequency duplex amplification module;
What said multi-mode radio frequency transceiving chip adopted is above-mentioned multi-mode radio frequency transceiving chip.
The embodiment of the invention provides a kind of multimode terminal, comprises the multi-mode radio frequency transceiving chip, duplexing amplification module and the duplexer module that connect successively, and said terminal module also comprises switch module,
What said duplexing amplification module adopted is above-mentioned low frequency duplex amplification module and/or above-mentioned high frequency duplex amplification module;
Said switch module, the low frequencies signal or the high-frequency emission signal that are used for said multi-mode radio frequency transceiving chip is sent switch to corresponding duplexing amplification module; And/or low frequency reception signal or high-frequency received signal that said duplexing amplification module is exported switch to said bimodulus rf chip.
The embodiment of the invention also provides a kind of multimode terminal to send the method for signal, and this method comprises:
The multi-mode radio frequency transceiving chip is divided into low frequencies signal or the output of high-frequency emission signal with various mode signals to be sent;
Power amplifier module amplifies back output to the low frequencies signal or the high-frequency emission signal of input.
The embodiment of the invention also provides a kind of multimode terminal to send the method for signal, and this method comprises:
Switch module switches to corresponding power amplifier module with the low frequencies signal or the high-frequency emission signal of the various mode signals that the multi-mode radio frequency transceiving chip sends;
Said power amplifier module amplifies back output to the signal of input.
Above-mentioned duplexing amplification module and comprise the multimode terminal of this duplex amplification module; Radio frequency amplifier and the synthetic duplexing amplification module of corresponding duplexer with the near frequency band different systems; Rf chip is improved to can handle multiple standard signal, and synthesizes low-and high-frequency four tunnel input and output according to frequency range, realizes the transmitting-receiving of radiofrequency signal; Reduce a large amount of devices, improved the integrated level of multimode terminal.
Description of drawings
Fig. 1 is the configuration diagram of existing GSM/WCDMA dual-mode terminal;
Fig. 2 is the configuration diagram of GSM/WCDMA dual-mode terminal embodiment one of the present invention;
Fig. 3 is the configuration diagram of GSM/WCDMA 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 duplexing amplification module, is applied to the transceiver channel of multimode terminal, and said duplexing amplification module comprises power amplifier and duplexer, wherein:
Said power amplifier is used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the various mode signals of input amplifies;
Said duplexer is used to export the signal from after the said power amplifier amplification; And/or, the signal of arbitrary frequency range at least two frequency ranges of the various mode signals that receive is carried out exporting after the filtering.
Wherein, Above-mentioned duplexing amplification module can be low frequency duplex amplification module; Particularly, said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the low frequencies signal of the various mode signals of input amplifies.Said duplexer comprises emission filter and receiving filter, wherein: said emission filter, link to each other with said power amplifier, be used to export low frequencies signal from after the said power amplifier amplification; Said receiving filter is used for the signal that low frequency to the various mode signals that receive receives at least two arbitrary frequency ranges of frequency range of signal and carries out exporting after the filtering.
In addition; Above-mentioned duplexing amplification module can be high frequency duplex amplification module; Particularly, said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the high-frequency emission signal of the various mode signals of input amplifies.Said duplexer comprises emission filter and receiving filter, wherein: said emission filter, link to each other with said power amplifier, be used to export high-frequency emission signal from after the said power amplifier amplification; Said receiving filter is used for the signal of at least two arbitrary frequency ranges of frequency range of the high-frequency received signal of the various mode signals that receive is carried out exporting after the filtering.
Further, above-mentioned various mode signal comprises WCDMA (WCDMA) signal, code division multiple access (CDMA) signal, TD SDMA (TD-SCDMA) signal and global system for mobile communications (GSM) signal.
When above-mentioned mode signal was GSM signal and WCDMA signal, the frequency range of two kinds of signals was divided as shown in table 1:
Table 1WCDMA frequency range and GSM frequency range operating frequency correspondence table
In order to improve integrated level; Emission radio frequency amplifier (RFPA) and duplexer (duplexer) are integrated into each duplexing amplification module of low-and high-frequency; Receiving frequency range from above GSM, WCDMA emission can find out; Low frequency duplex amplification module is as long as cover 824-915MHz, and high frequency duplex amplification module is used by operator and the standard frequency range that is not capped is also less as long as cover the transmit frequency band that 1710-1980MHz just can cover most of standard.The multiband multimode of duplexer is adjustable, and inner different band-pass realization can be switched through electric switch in inside.
Need to prove; The low frequencies signal of a certain pattern or high-frequency emission signal all comprise the signal of two frequency ranges of this pattern at least in the embodiment of the invention; So-called low frequencies signal 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, for example; For the GSM/WCDMA signal, the frequency range that the low frequencies signal covers is 824-915MHz; The frequency range that the high-frequency emission signal covers is 1710-1980MHz.
Certainly, above-mentioned duplexing amplification module can have the function of low frequency, high frequency duplex amplification module, and above-mentioned duplexing amplification module can be integrated into RF front-end module with the duplexer module, and this duplex amplification module links to each other with this duplexer module.
In order to realize the function of above-mentioned low frequency, high frequency duplex amplification module; The embodiment of the invention provides a kind of multi-mode radio frequency transceiving chip; This multi-mode radio frequency transceiving chip comprises: separation module is used for various mode signals are divided into low frequencies signal or high-frequency emission signal; Output module is used to export said low frequencies signal or the said high-frequency emission signal that said separation module is divided into.This multi-mode radio frequency transceiving chip also comprises: input module, the low frequency that is used to import various mode signals receives signal or high-frequency received signal.Above-mentioned multi-mode radio frequency transceiving chip synthesizes low-and high-frequency with the multichannel transmitting-receiving and receives emission four tunnel input and output, and such framework has been simplified the radio circuit of multi-modulation scheme mobile phone terminal greatly.
As shown in Figure 2; Be the configuration diagram of GSM/WCDMA dual-mode terminal embodiment one of the present invention, the dual-mode terminal among this embodiment comprises main antenna 201, duplexer module 202, switch module 209-212, high frequency duplex amplification module 203, low frequency duplex amplification module 204 and multi-mode radio frequency transceiving chip 213; Compare with traditional WCDMA/GSM mobile phone terminal; A plurality of SAW filters and radio frequency amplifier have been saved; It is high frequency wide frequency RF amplifier 207 and low frequency wide frequency RF amplifier 208 that the amplifier of a plurality of different systems synthesizes two radio frequency amplifiers according to frequency range, and to synthesize each module with adjustable double multiplexer 205 and 206 respectively be high frequency duplex amplification module 203 and the duplexing amplification module 204 of low frequency.Emission through 209,210,211,212 pairs of different frequency ranges of different switch modules and standard between low frequency, high frequency duplex amplification module and the traditional rf chip 213 receives the road and switches.Emission such as WCDMA band1 is to transfer out signal through rf chip 213; Switch module 209 controls switching high frequency duplex amplification module 203 is connected with WCDMA HB1TX road; Signal amplifies the back through high frequency duplex amplification module 203 and arrives duplexer module 202, at last by main antenna 201 emissions; Reception be through main antenna 201 receive signal to duplexer module 202 to high frequency duplex after amplification module 203 carries out filtering; Switch module 209 controls are switched the WCDMA HB1 RX that connects high frequency duplex amplification module 203 and rf chip 213 and are received the road, and signal arrives rf chip 213.The WCDMA signal of other frequency ranges and the transmitting-receiving behavior of GSM signal also are similar to foregoing description.
In sum; WCDMA and GSM signal transmit and receive behavior and through duplex and RF Amplifier Module the time, synthesize; Promptly originally passed through duplexing amplification module without the GSM transmitting and receiving signal of duplexer is the same with WCDMA in improved WCDMA mobile phone terminal RF front end structure, it is what to carry out through the switch behavior of the switch module between duplexer module and the duplexing amplification module that the signal emission when WCDMA, the work of GSM different systems receives switching.
In addition; Above-mentioned high frequency duplex amplification module and low frequency duplex amplification module can be accomplished by a duplexing amplification module; Just the power amplifier working frequency points scope in duplexing amplification module this moment is wideer, and the working frequency points scope of emission filter in the duplexer and receiving filter is also wideer.And that the method for regulatory work rate amplifier working frequency points can have is a variety of, for example regulates through the mode that increases match circuit; And that the method for the working frequency points of emission filter in the adjusting duplexer and receiving filter also has is a variety of; Preferable methods is; Electric capacity in the high-pass and low-pass filter in emission filter and the receiving filter all is made as tunable capacitor, changes the operating frequency of emission filter and receiving filter through the capacitance of regulating tunable capacitor.
As shown in Figure 3; Be the configuration diagram of GSM/WCDMA dual-mode terminal embodiment two of the present invention, the dual-mode terminal among this embodiment comprises main antenna 301, duplexer module 302, high frequency duplex amplification module 303, low frequency duplex amplification module 304 and multi-mode radio frequency transceiving chip 309; Compare with dual-mode terminal shown in Figure 2, saved switch module, rf chip is integrated WCDMA, GSM transmitting-receiving, and WCDMA, GSM transmitting-receiving be integrated into each two-way transmitting-receiving input and output of high and low frequency.Simultaneously, the multi-mode radio frequency transceiving chip also is integrated into height frequency range two-way transmitting-receiving input and output with the different systems near frequency band.Particularly; Receiving the emission behavior compares with dual-mode terminal shown in Figure 2; Saved the switching behavior of switch module to the emission reception road of not going the same way; Rf chip 309 has only four tunnel input and output, and the signal transmission directly just can be accomplished through the control of rf chip 309 and duplexer module 302.Emission such as WCDMA band1 is to transfer out signal through rf chip 309; Arrive duplexer module 302 by main antenna 301 emissions after the amplification of signal through switching high frequency duplex amplification module 303; Reception be through main antenna 301 receive signal to duplexer module 302 to high frequency duplex after amplification module 303 carries out filtering, receive the road and transfer signals to and reach rf chip 309.The WCDMA signal of other frequency ranges and the transmitting-receiving behavior of GSM signal also are similar to foregoing description.
In sum; WCDMA and GSM signal transmit and receive behavior and through low frequency, high frequency duplex amplification module the time, synthesize; Promptly originally passed through duplexing amplification module without the GSM transmitting and receiving signal of duplexer is the same with WCDMA in improved WCDMA mobile phone terminal RF front end structure, it is that switching behavior through duplexer module and rf chip carries out that the signal emission when WCDMA, the work of GSM different systems receives switching.Said high frequency, low frequency duplex amplification module can be mutually independently, also can be integrated in the chip.
Above-mentioned WCDMA/GSM pattern is not limited to the mobile phone terminal of WCDMA, two kinds of standards of GSM, can also be CDMA/GSM pattern etc., and duplexing amplification module can also can synthesize a chip for each one of low-and high-frequency; Also can become RF front-end module with the duplexer die combination.
Above-mentioned multimode terminal is received and dispatched the signal of different mode through low frequency, high frequency duplex amplification module, has simplified the radio-frequency receiving-transmitting road, has increased the integrated level of multimode terminal greatly, thereby has reduced the area of shared PCB.
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 (12)
1. duplexing amplification module is applied to the transceiver channel of multimode terminal, it is characterized in that said duplexing amplification module comprises power amplifier and duplexer, wherein:
Said power amplifier is used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the various mode signals of input amplifies;
Said duplexer is used to export the signal from after the said power amplifier amplification; And/or, the signal of arbitrary frequency range at least two frequency ranges of the various mode signals that receive is carried out exporting after the filtering.
2. duplexing amplification module according to claim 1 is characterized in that:
Said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the low frequencies signal of the various mode signals of input amplifies.
3. duplexing amplification module according to claim 2 is characterized in that:
Said duplexer comprises emission filter and receiving filter, wherein:
Said emission filter links to each other with said power amplifier, is used to export the low frequencies signal from after the said power amplifier amplification;
Said receiving filter is used for the signal that low frequency to the various mode signals that receive receives at least two arbitrary frequency ranges of frequency range of signal and carries out exporting after the filtering.
4. duplexing amplification module according to claim 1 is characterized in that:
Said power amplifier is to be used for exporting said duplexer to after the signal of at least two arbitrary frequency ranges of frequency range to the high-frequency emission signal of the various mode signals of input amplifies.
5. duplexing amplification module according to claim 4 is characterized in that:
Said duplexer comprises emission filter and receiving filter, wherein:
Said emission filter links to each other with said power amplifier, is used to export the high-frequency emission signal from after the said power amplifier amplification;
Said receiving filter is used for the signal of at least two arbitrary frequency ranges of frequency range of the high-frequency received signal of the various mode signals that receive is carried out exporting after the filtering.
6. according to the described duplexing amplification module of the arbitrary claim of claim 1-5, it is characterized in that:
Said various mode signal comprises WCDMA (WCDMA) signal, code division multiple access (CDMA) signal, TD SDMA (TD-SCDMA) signal and global system for mobile communications (GSM) signal.
7. a RF front-end module comprises the duplexer module, it is characterized in that, also comprise link to each other with said duplexer module like claim 2 or 3 described duplexing amplification modules and/or like claim 4 or 5 described duplexing amplification modules; Perhaps, the as claimed in claim 1 duplexing amplification module that links to each other with said duplexer module.
8. a multi-mode radio frequency transceiving chip is characterized in that, this multi-mode radio frequency transceiving chip comprises:
Separation module is used for various mode signals are divided into low frequencies signal or high-frequency emission signal;
Output module is used to export said low frequencies signal or the said high-frequency emission signal that said separation module is divided into.
9. a multimode terminal comprises the multi-mode radio frequency transceiving chip, duplexing amplification module and the duplexer module that connect successively, it is characterized in that:
Said duplexing amplification module adopts is like claim 2 or 3 described duplexing amplification modules and/or like claim 4 or 5 described duplexing amplification modules;
What said multi-mode radio frequency transceiving chip adopted is multi-mode radio frequency transceiving chip as claimed in claim 8.
10. a multimode terminal comprises the multi-mode radio frequency transceiving chip, duplexing amplification module and the duplexer module that connect successively, it is characterized in that said terminal module also comprises switch module,
Said duplexing amplification module adopts is like claim 2 or 3 described duplexing amplification modules and/or like claim 4 or 5 described duplexing amplification modules;
Said switch module, the low frequencies signal or the high-frequency emission signal that are used for said multi-mode radio frequency transceiving chip is sent switch to corresponding duplexing amplification module; And/or low frequency reception signal or high-frequency received signal that said duplexing amplification module is exported switch to said bimodulus rf chip.
11. a multimode terminal sends the method for signal, it is characterized in that this method comprises:
The multi-mode radio frequency transceiving chip is divided into low frequencies signal or the output of high-frequency emission signal with various mode signals to be sent;
Power amplifier module amplifies back output to the low frequencies signal or the high-frequency emission signal of input.
12. a multimode terminal sends the method for signal, it is characterized in that this method comprises:
Switch module switches to corresponding power amplifier module with the low frequencies signal or the high-frequency emission signal of the various mode signals that the multi-mode radio frequency transceiving chip sends;
Said power amplifier module amplifies back output to the signal of input.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103476603A CN102404021A (en) | 2011-11-04 | 2011-11-04 | Duplex amplifying module, radio frequency front end module and multi-mode terminal |
| PCT/CN2012/076374 WO2013063931A1 (en) | 2011-11-04 | 2012-06-01 | Duplex amplifier module, radio frequency front-end module, and multi-mode terminal |
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| CN2011103476603A CN102404021A (en) | 2011-11-04 | 2011-11-04 | Duplex amplifying module, radio frequency front end module and multi-mode terminal |
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Cited By (19)
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| WO2013063931A1 (en) * | 2011-11-04 | 2013-05-10 | 中兴通讯股份有限公司 | Duplex amplifier module, radio frequency front-end module, and multi-mode terminal |
| CN103888094A (en) * | 2012-12-20 | 2014-06-25 | 三星电机株式会社 | Power amplifying circuit and front end module including the same |
| CN104113355A (en) * | 2013-04-19 | 2014-10-22 | 联发科技（新加坡）私人有限公司 | Electronic device |
| CN104469992A (en) * | 2014-12-02 | 2015-03-25 | 东莞宇龙通信科技有限公司 | Multimode mobile terminal |
| CN104468069A (en) * | 2014-11-24 | 2015-03-25 | 东南大学 | TDD/FDD dual-mode reconfigurable wireless communication system and communication method |
| CN104581920A (en) * | 2013-10-25 | 2015-04-29 | 展讯通信（上海）有限公司 | Multichannel signal emitting system and signal emitting method |
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