CN2899295Y - Frame of two-mode cell phone - Google Patents
Frame of two-mode cell phone Download PDFInfo
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- CN2899295Y CN2899295Y CNU2005200470145U CN200520047014U CN2899295Y CN 2899295 Y CN2899295 Y CN 2899295Y CN U2005200470145 U CNU2005200470145 U CN U2005200470145U CN 200520047014 U CN200520047014 U CN 200520047014U CN 2899295 Y CN2899295 Y CN 2899295Y
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Abstract
The utility model discloses a frame of two-mode cell phone which can reduce the number of chip to be used and improve the integration of cell phone circuit. The utility model comprises a baseband chip, an antenna switch module, a double-mode wireless transceiver chip which can integrate GSM transceiver and TD-SCDMA transceiver to obtain the functions of GSM transceiver and TE-SCDMA transceiver, a double-mode power amplifier chip which can integrate GSM power amplifier and TD-SCDMA power amplifier to obtain the functions of GSM amplifier and TE-SCDMA power amplifier. The integration of GSM wireless transceiver and TD-SCDMA wireless transceiver into one chip, and the integration of GSM power amplifier and TD-SCDMA power amplifier into one chip can be significant to the miniaturization development of GSM/TD-SCDMA double-mode cell phone.
Description
Technical field
The utility model relates to a kind of framework of dual-mode handset, relates in particular to the framework of a kind of GSM/TD-SCDMA (global system for mobile communications/TD SDMA) dual-mode handset.
Background technology
Now in the GSM/TD-SCDMA dual-mode handset of each cell phone manufacturer's research and development based on different solutions, popular GSM/TD-SCDMA dual-mode handset framework generally has two kinds of forms at present, as shown in Figure 1, 2, first kind is the base band chip piece, radio-frequency front-end GSM partly is a GSM transceiver and a GSM power amplifier, and TD-SCDMA partly is a TD transceiver and a TD power amplifier; Second kind is that base band also is a chip piece, and radio-frequency front-end GSM part also is a GSM transceiver and a GSM power amplifier, and the TD-SCDMA part then is TD transceiver and a TD reflector.
No matter be that the receiver that the transceiver of radio-frequency front-end TD-SCDMA part in first kind of framework adds radio-frequency front-end TD-SCDMA part in power amplifier or the second kind of framework adds reflector, the radio-frequency front-end part of these two kinds of frameworks all will have four chips, just can finish the transmitting-receiving of wireless signal.The common drawback of these two kinds of frameworks is exactly a complex structure, uses number of chips many, and integrated level is not high, and area occupied is big on circuit board, and circuit design is miscellaneous, is unfavorable for the direction of present mobile phone to the miniaturization development.
The utility model content
The utility model provides a kind of framework of dual-mode handset, and it can reduce the quantity of using chip, improves the integrated level of mobile phone circuit.
In order to solve above technical problem, the utility model provides a kind of framework of dual-mode handset, and it comprises baseband chip; The duplexer module; A dual-mode transceiver, it the is integrated transceiver of two kinds of patterns, can realize this two kinds of pattern transceiver function, described dual-mode transceiver receives the signal from the duplexer module, after passing through conversion then, signal is outputed to baseband chip, baseband chip is through demodulation, a series of processing such as decoding restore raw information, and the emission part of described dual-mode transceiver adopts the launch scenario of double conversion, and the signal that described baseband chip is sent into is exported to the bimodulus power amplifier through after the conversion; A bimodulus power amplifier, the power amplifier of its integrated two kinds of pattern, can realize the power amplifier function of these two kinds of patterns, described bimodulus power amplifier receives the signal from the bimodulus power amplifier, it is sent to the duplexer module with signal after finishing the effect of moving to power then, and the duplexer module is finished the emission work to signal.
Because the utility model is gsm wireless transceiver and the integrated chip piece of TD-SCDMA wireless transceiver, GSM power amplifier and the integrated chip piece of TD-SCDMA power amplifier, simplified the framework of the GSM/TD-SCDMA dual-mode handset receiving and transmitting unit of whole formation greatly, reduce the usage quantity of chip, simplify the design of GSM/TD-SCDMA dual-mode handset radio circuit, use less board area, the miniaturization of GSM/TD-SCDMA dual-mode handset development is had important meaning.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Fig. 1 is a kind of configuration diagram of existing GSM/TD-SCDMA dual-mode handset;
Fig. 2 is the another kind of configuration diagram of existing GSM/TD-SCDMA dual-mode handset;
Fig. 3 is the configuration diagram of the utility model GSM/TD-SCDMA dual-mode handset.
Embodiment
Fig. 3 is the configuration diagram of GSM/TD-SCDMA dual-mode handset of the present utility model.It mainly is made up of four parts, baseband chip 1, and dual-mode transceiver 2, bimodulus power amplifier 3 and duplexer module 4 have been formed the framework of GSM and TD-SCDMA dual-mode handset jointly.From the reception path of whole framework, duplexer module 4 is sent to dual-mode transceiver 2 with the current signal that the operating frequency wireless electromagnetic signal that receives is converted into operating frequency, behind the GSM or the IQ signal of TD-SCDMA signal of the acceptance division of dual-mode transceiver 2 with operating frequency through down-conversion output baseband chip 1 treatable GSM or TD-SCDMA, baseband chip 1 is through demodulation, and a series of processing such as decoding restore raw information.Emission path from whole framework, baseband chip 1 is with raw information process coding, a series of processing such as modulation, the IQ signal that is converted into GSM or TD-SCDMA outputs to the emission part of dual-mode transceiver 2, the emission part of dual-mode transceiver 2 is with the IQ signal process up-conversion of GSM or TD-SCDMA, GSM or TD-SCDMA signal that processing such as filtering become operating frequency are sent to bimodulus power amplifier 3, bimodulus power amplifier 3 is sent to duplexer module 4 with signal after finishing the effect of moving to power, and duplexer module 4 is finished the signal emission work to GSM (TD-SCDMA) operating frequency.In addition, baseband chip 1 also will be finished dual-mode transceiver 2, and the control of bimodulus power amplifier 3 and duplexer module 4 makes correct reception of dual-mode handset energy and emission wireless signal.
Wherein, dual-mode transceiver 2 is integrated GSM transceiver and TD-SCDMA transceiver, it is integrated in the wireless transceiver of GSM and two kinds of standards of TD-SCDMA in the chip piece, can realize GSM transceiver and TD-SCDMA transceiver function, the receiving unit of this dual-mode transceiver 2 is that GSM or TD-SCDMA are the reception programmes that adopts zero intermediate frequency, operating frequency is directly passed through a mixing, filtering, and amplification just is down-converted to difference IQ signal and exports to baseband chip.Such reception is simple for structure, and every performance index also meet the standard of GSM and 3GPP receiver.The radiating portion of this dual-mode transceiver 2 is that GSM or TD-SCDMA are the launch scenarios of the double conversion of employing, difference IQ signal first mixing that baseband chip 1 is sent into, synthesize intermediate-freuqncy signal, the signal of first mixing is exported to bimodulus power amplifier 3 at the signal that becomes operating frequency through second mixing.Also integrated VCO (voltage controlled oscillator) and PLL (phase-locked loop) in the radiating portion.
In addition, bimodulus power amplifier 3 is integrated GSM power amplifier and TD-SCDMA power amplifier, the principal character of GSM and TD-SCDMA power amplifier is that nonlinear amplifier and the used linear amplifier of TD-SCDMA that GSM is used is integrated in the chip piece, improved the efficient of PA (power amplifier), the match circuit of PA also is integrated in the chip, has obtained minimum emission subsystem.
Framework of the present utility model changes mainly in reception and two parts of emitter.Receiving system of the present utility model is made of following several sections: antenna switch group 4 is used for the received signal that antenna receives is input to dual-mode transceiver 2; The GSM acceptance division of dual-mode transceiver 2, it comprises and becomes the operating frequency frequency conversion GSM of baseband signal to receive the GSM base band part of the baseband signal of ASIC circuit (application-specific IC) and input GSM mode, so-called GSM receives the ASIC circuit and is meant that mainly the signal of the operating frequency of will come in from switch down-converts to this part circuit of baseband I Q signal, by the zero intermediate frequency reception programme, Direct Conversion, filtering, amplify output baseband I Q signal, the GSM base band part is meant that mainly the IQ signal of the information of carrying carries out demodulation, a series of processing such as decoding, this part circuit that the raw information that sends is restored; The TD-SCDMA acceptance division of dual-mode transceiver 2, it comprises and becomes the operating frequency frequency conversion TD-SCDMA of baseband signal to receive the TD-SCDMA base band part of the baseband signal of ASIC circuit and input TD-SCDMA mode, TD-SCDMA receives the ASIC circuit and is meant that mainly the signal of the operating frequency of will come in from switch down-converts to this part circuit of baseband I Q signal, by the zero intermediate frequency reception programme, Direct Conversion, filtering, amplify output baseband I Q signal, the TD-SCDMA base band part is meant that mainly the IQ signal of the information of carrying carries out demodulation, a series of processing such as decoding, this part circuit that the raw information that sends is restored.
Emitter of the present utility model then is made of following several sections: the GSM emission part of dual-mode transceiver 2, and it comprises the GSM base band part of the baseband signal of exporting the GSM mode and the baseband signal frequency conversion is become the GSM emission ASIC circuit of operating frequency; The TD-SCDMA emission part of dual-mode transceiver 2, it comprises the TD-SCDMA base band part of the baseband signal of exporting the TD-SCDMA mode and the baseband signal frequency conversion is become the TD-SCDMA emission ASIC circuit of operating frequency, so-called emission ASIC circuit is meant the IQ signal that base band is sent into, through double conversion, IQ signal elder generation up-conversion is to intermediate-freuqncy signal, and then up-converts to this part circuit that transmitting of operating frequency outputs to bimodulus power amplifier 3; Bimodulus power amplifier 3, it is connected in the GSM emission ASIC circuit of said GSM emission part and the TD-SCDMA emission ASIC circuit of above-mentioned TD-SCDMA emission part, the GSM and the TD-SCDMA that are used to receive from dual-mode transceiver send signal, then the signal after the frequency conversion are enlarged into the signal that needs size; Antenna switch group is used to select transmitting and sending to antenna of above-mentioned bimodulus power amplifier 3 outputs, by antenna signal is launched then.
So, the present invention relates to the reception and the emitter of dual-mode handset framework, particularly a kind of gsm wireless transceiver and TD-SCDMA wireless transceiver are made chip piece, GSM power amplifier and TD-SCDMA power amplifier are made chip piece, simplified the framework of the GSM/TD-SCDMA dual-mode handset receiving and transmitting unit of whole formation greatly, reduce the usage quantity of chip, simplify the design of GSM/TD-SCDMA dual-mode handset radio circuit, use less board area, the miniaturization of GSM/TD-SCDMA dual-mode handset development is had important meaning.
Claims (5)
1, a kind of framework of dual-mode handset, it comprises baseband chip, and the duplexer module is characterized in that, and it also comprises:
A dual-mode transceiver, it the is integrated transceiver of two kinds of patterns, can realize this two kinds of pattern transceiver function, the acceptance division of described dual-mode transceiver receives the signal from the duplexer module, after passing through conversion then, signal is outputed to baseband chip, baseband chip is through demodulation, a series of processing such as decoding restore raw information, and the emission part of described dual-mode transceiver adopts the launch scenario of double conversion, and the signal that described baseband chip is sent into is exported to the bimodulus power amplifier through after the conversion;
A bimodulus power amplifier, the power amplifier of its integrated two kinds of pattern, can realize the power amplifier function of these two kinds of patterns, described bimodulus power amplifier receives the signal from dual-mode transceiver, it is sent to the duplexer module with signal after finishing the effect of moving to power then, and the duplexer module is finished the emission work to signal.
2, the framework of dual-mode handset as claimed in claim 1 is characterized in that, described dual-mode transceiver, integrated GSM transceiver and TD-SCDMA transceiver.
3, the framework of dual-mode handset as claimed in claim 1 is characterized in that, described bimodulus power amplifier, integrated GSM power amplifier and TD-SCDMA power amplifier.
4, the framework of dual-mode handset as claimed in claim 1 is characterized in that, the mode of operation of described dual-mode transceiver is controlled by baseband chip.
5, the framework of dual-mode handset as claimed in claim 1 is characterized in that, the mode of operation of described bimodulus power amplifier is controlled by baseband chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200470145U CN2899295Y (en) | 2005-11-29 | 2005-11-29 | Frame of two-mode cell phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200470145U CN2899295Y (en) | 2005-11-29 | 2005-11-29 | Frame of two-mode cell phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899295Y true CN2899295Y (en) | 2007-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200470145U Expired - Fee Related CN2899295Y (en) | 2005-11-29 | 2005-11-29 | Frame of two-mode cell phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899295Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010133117A1 (en) * | 2009-05-22 | 2010-11-25 | 惠州Tcl移动通信有限公司 | Radio transceiver for mobile communication terminal |
| CN101448343B (en) * | 2008-12-22 | 2012-03-14 | 德可半导体（昆山）有限公司 | TD-SCDMA/GSM dual-mode handset radio-frequency power amplifier module |
| WO2012152034A1 (en) * | 2011-09-23 | 2012-11-15 | 中兴通讯股份有限公司 | Dual-mode radio frequency module, dual-mode radio frequency transmitting and receiving method and user terminal |
| WO2016109949A1 (en) * | 2015-01-07 | 2016-07-14 | 华为技术有限公司 | Radio frequency front-end system, terminal device and base station |
| CN106559048A (en) * | 2016-10-25 | 2017-04-05 | 锐迪科微电子（上海）有限公司 | A kind of multi-mode radio frequency power amplifier |
| CN110401467A (en) * | 2019-07-19 | 2019-11-01 | Oppo广东移动通信有限公司 | Radio frequency front-end device and electronic equipment |
| CN113556145A (en) * | 2020-04-24 | 2021-10-26 | 大唐移动通信设备有限公司 | Data processing method and device, electronic equipment and storage medium |
-
2005
- 2005-11-29 CN CNU2005200470145U patent/CN2899295Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448343B (en) * | 2008-12-22 | 2012-03-14 | 德可半导体（昆山）有限公司 | TD-SCDMA/GSM dual-mode handset radio-frequency power amplifier module |
| WO2010133117A1 (en) * | 2009-05-22 | 2010-11-25 | 惠州Tcl移动通信有限公司 | Radio transceiver for mobile communication terminal |
| CN101562460B (en) * | 2009-05-22 | 2013-04-03 | 惠州Tcl移动通信有限公司 | Wireless receiving and emitting device of mobile communication terminal |
| WO2012152034A1 (en) * | 2011-09-23 | 2012-11-15 | 中兴通讯股份有限公司 | Dual-mode radio frequency module, dual-mode radio frequency transmitting and receiving method and user terminal |
| WO2016109949A1 (en) * | 2015-01-07 | 2016-07-14 | 华为技术有限公司 | Radio frequency front-end system, terminal device and base station |
| CN105940760A (en) * | 2015-01-07 | 2016-09-14 | 华为技术有限公司 | RF front-end system, terminal equipment and base station |
| CN105940760B (en) * | 2015-01-07 | 2019-03-26 | 华为技术有限公司 | Radio-frequency front-end system, terminal device and base station |
| CN106559048A (en) * | 2016-10-25 | 2017-04-05 | 锐迪科微电子（上海）有限公司 | A kind of multi-mode radio frequency power amplifier |
| CN110401467A (en) * | 2019-07-19 | 2019-11-01 | Oppo广东移动通信有限公司 | Radio frequency front-end device and electronic equipment |
| CN110401467B (en) * | 2019-07-19 | 2021-07-30 | Oppo广东移动通信有限公司 | Radio frequency front-end device and electronic equipment |
| CN113556145A (en) * | 2020-04-24 | 2021-10-26 | 大唐移动通信设备有限公司 | Data processing method and device, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20121129 |