CN101277496A - Double-card double-mode mobile phone - Google Patents
Double-card double-mode mobile phone Download PDFInfo
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- CN101277496A CN101277496A CNA2008100671246A CN200810067124A CN101277496A CN 101277496 A CN101277496 A CN 101277496A CN A2008100671246 A CNA2008100671246 A CN A2008100671246A CN 200810067124 A CN200810067124 A CN 200810067124A CN 101277496 A CN101277496 A CN 101277496A
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- 238000010168 coupling process Methods 0.000 claims description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention provides a dual-card and dual-mode cellphone, the cellphone only has one transceiver system, the transceiver system includes an antenna, a power amplifier module, a RF back module and a baseband processing module in turn, the RF back module includes a first power divider, a first filter, a second power divider and a second filter, the first and the second power dividers are used for dividing signals of each power amplifier module into two paths, transmitting to the first and the second filter respectively; the first and the second filters are used for filtering the out-band clutter of the signals. The invention has a lower cost, simple design, but high credibility; avoiding the mutual interference between two transceiver systems and between antennas, having better RF performance; the two transceiver systems have small power consumption when working, prolonging the standby and conversation time of the cellphone, reducing the parts and saving the production cost.
Description
Technical field
The present invention relates to the telecommunications field, relate in particular to a kind of two card single/double mode hand-hold communication equipment.
Background technology
Along with the fast development of hand-held communication terminal, people are more and more to the application requirements of mobile phone.Two card dual-mode handsets are exactly the modified form handheld communication devices that a kind of extremely of being born under this requirement has market prospects and commercial profit.Existing two card dual-mode handset generally has two cover radio-frequency transmissions, receiving system and two corresponding antennas.Yet, the complete radio-frequency system of two covers brings a lot of adverse effects to mobile phone, such as owing to adopted that two cover complete receive-transmit systems and manufacturing costs are relatively more expensive, can produce that signal disturbs, two cover radio-frequency systems cause the overall power consumption of mobile phone excessive between the two cover receive-transmit systems mutually, cause mobile phone communication, stand-by time shorter; These problems are for the mobile phone products of a maturation, and influence is very serious.
Summary of the invention
Technical problem to be solved by this invention is, a kind of two card dual-mode handset is provided, and the present invention efficiently solves the interference that two cover receive-transmit systems bring, and power problems has also been saved the costs of making two card dual-mode handsets simultaneously, has improved the reliability of producing.
A kind of two card dual-mode handset, this mobile phone only has a cover receive-transmit system, described receive-transmit system comprises antenna, power amplifier module, radio frequency rear module and baseband processing module successively, described radio frequency rear module comprises first power splitter, first filter, second power splitter and second filter, described first and second power splitter is used for the signal separately from power amplifier module is divided into two-way, exports to first and second filter respectively; First and second filter is used for the outer clutter of band of filtered signal.
Also include RF front-end module between described antenna and the power amplifier module, this module comprises the first matching network module successively, the radio frequency testing module and the second matching network module, and the first matching network module is used to do the impedance matching of antenna; Radio frequency testing is used to calibrate the every radio-frequency (RF) index and the testing mobile phone veneer of mobile phone; Second matching network is used to suppress the harmonic wave of power amplifier outgoing carrier, prevents the static of antenna input port and does the output impedance coupling of power amplifier module.
Described first filter is a Surface Acoustic Wave Filter.
Described second filter is a Surface Acoustic Wave Filter.
Described radio frequency testing module is the radio frequency testing seat.
Also include a control module in the described baseband processing module, this module is used to monitor the two-way input signal of baseband processing module, if the Subscriber Identity Module of any one road signal correspondence has base station calling, then is responsible for inserting conversation.
The present invention compares with existing two card dual-mode handsets, and following these advantages are arranged.
(1) cost is cheap relatively, designs simply relatively, but reliability increases;
(2) avoided between the two cover receive-transmit systems, interfering with each other between two antennas, radio-frequency performance is better;
(4) power consumption of working simultaneously than two cover receive-transmit systems is little, can prolong standby, the air time of mobile phone;
(5) reduce device, saved production cost.
Description of drawings
Fig. 1 is the overall structure block diagram of receive-transmit system of the present invention;
Fig. 2 is a RF front-end module block diagram of the present invention;
Fig. 3 is a power amplifier module block diagram of the present invention;
Fig. 4 is a radio frequency rear module block diagram of the present invention;
Fig. 5 is a Base-Band Processing part block diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
As shown in Figure 1, be receive-transmit system entire block diagram of the present invention, comprise antenna, RF front-end module, power amplifier module, radio frequency rear module and baseband processing module, these modules have been formed radio-frequency system of the present invention.
Fig. 2 is a RF front-end module of the present invention, this module comprises the first matching network module successively, the radio frequency testing module and the second matching network module, the first matching network module is used to do the impedance matching of antenna, this matching network can help antenna to reduce the return loss that transmits, and effectively improves antenna efficiency; Radio frequency testing is used to calibrate the every radio-frequency (RF) index and the testing mobile phone veneer of mobile phone; The main effect of second matching network has three, the firstth, in order to suppress the harmonic wave of power amplifier outgoing carrier, second effect is in order to prevent the static of antenna input port, the 3rd is the output impedance coupling of power amplifier, makes power amplifier can obtain good gain amplifier and power output.This section circuit is that mobile phone transmits and receives the signal common link, and the radio-frequency performance of mobile phone is had very significant effects, and this section circuit should reduce the insertion loss on every section transmission line as far as possible, makes the transmission that power can be good.
Fig. 3 is a power amplifier module, it is integrated that this module is generally chip-scale, can be divided into switch, Logic control module, three parts of power amplifier module, Logic control module receives after the various control signals control switch and power amplifier module and makes various corresponding operations in the suitable time.The antenna port of power amplifier module connects RF front-end module, and antenna port is the multiplexing port that transmits and receives.The received signal that enters radiofrequency emitting module from antenna port is exported from Rx1 port (signal of GSM900), Rx2 port (signal of DCS1800) port respectively behind switch, enters the radio frequency rear module.Be input to power amplifier module from next the transmitting of baseband processing module transmission by Tx1 port (signal of GSM900), Tx2 port (signal of DCS1800), after power amplifier module is amplified to suitable power, enter RF front-end module at suitable time slot through antenna port by switch.
Fig. 4 is the radio frequency rear module, output port Rx1 (GSM900) from power amplifier module, the two-way received signal of Rx2 (DCS1800) output, enter first power splitter and second power splitter of radio frequency rear module respectively, power splitter is divided into two-way to each road input signal, from first power splitter, get the signal of one road GSM900 then, the signal of getting one road DCS1800 from second power splitter enters first Surface Acoustic Wave Filter, obtain received signal one in the rear end of first Surface Acoustic Wave Filter, export to baseband processing module, input port B BRX1 through baseband processing module enters baseband processing module, become its input signal one, the effect of the Surface Acoustic Wave Filter here is for the outer clutter of the band of better filtering received signal, improves the receiving sensitivity of mobile phone.Use the same method, from first power splitter, get the signal of one road GSM900, the signal of getting one road DCS1800 from second power splitter enters second Surface Acoustic Wave Filter, obtain received signal two in the rear end of second Surface Acoustic Wave Filter, export to baseband processing module, input port B BRX2 through baseband processing module enters baseband processing module, becomes its input signal two.The present invention has adopted increases a method that receives link, has obtained the complete received signal of two-way, and then the complete received signal of this two-way is handled by BBRX1 port, the BBRX2 port input baseband processing module of baseband processing module.At last, baseband processing module is exported transmits and carries out power amplification by TX1 (GSM900) port of BBTX1 (GSM900) port, BBTX2 (DCS1800) port input work amplification module and TX2 (DCS1800) port and handle.
Shown in Figure 5 is the baseband processing module block diagram, this module enabled two ports as with the interface of Subscriber Identity Module (SIM card), difference corresponding SIM card 1, SIM card 2, also comprise a control module in this module, control module is monitored the complete received signal of two-way that enters baseband processing module from BBRX1 port, BBRX2 port, if listen to any SIM card base station calling is arranged, then connect this paging, begin a common communication process, behind end of conversation, begin to monitor the paging information of two SIM cards more simultaneously, wait for the paging of any SIM card.
The present invention can accomplish that two SIM cards are in wait simultaneously and are called out, i.e. holding state, solved that two cover receive-transmit systems bring such as problems such as power consumption, cost, interference.
Claims (6)
1, a kind of two card dual-mode handset, it is characterized in that, this mobile phone only has a cover receive-transmit system, described receive-transmit system comprises antenna, power amplifier module, radio frequency rear module and baseband processing module successively, described radio frequency rear module comprises first power splitter, first filter, second power splitter and second filter, described first and second power splitter is used for the signal separately from power amplifier module is divided into two-way, exports to first and second filter respectively; First and second filter is used for the outer clutter of band of filtered signal.
2, two card dual-mode handset as claimed in claim 1, it is characterized in that, also include RF front-end module between described antenna and the power amplifier module, this module comprises the first matching network module successively, the radio frequency testing module and the second matching network module, the first matching network module is used to do the impedance matching of antenna; Radio frequency testing is used to calibrate the every radio-frequency (RF) index and the testing mobile phone veneer of mobile phone; Second matching network is used to suppress the harmonic wave of power amplifier outgoing carrier, prevents the static of antenna input port and does the output impedance coupling of power amplifier module.
3, two card dual-mode handset as claimed in claim 1 is characterized in that described first filter is a Surface Acoustic Wave Filter.
4, two card dual-mode handset as claimed in claim 1 is characterized in that described second filter is a Surface Acoustic Wave Filter.
5, two card dual-mode handset as claimed in claim 2 is characterized in that described radio frequency testing module is the radio frequency testing seat.
6, two card dual-mode handset as claimed in claim 1 or 2, it is characterized in that, also include a control module in the described baseband processing module, this module is used to monitor the two-way input signal of baseband processing module, if the Subscriber Identity Module of any one road signal correspondence has base station calling, then be responsible for inserting conversation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100671246A CN101277496B (en) | 2008-05-12 | 2008-05-12 | Double-card double-mode mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100671246A CN101277496B (en) | 2008-05-12 | 2008-05-12 | Double-card double-mode mobile phone |
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| Publication Number | Publication Date |
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| CN101277496A true CN101277496A (en) | 2008-10-01 |
| CN101277496B CN101277496B (en) | 2012-06-06 |
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| CN2008100671246A Active CN101277496B (en) | 2008-05-12 | 2008-05-12 | Double-card double-mode mobile phone |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664653A (en) * | 2012-05-17 | 2012-09-12 | 天津里外科技有限公司 | Mobile terminal and radio frequency front terminal thereof with radio frequency digital-to-analog conversion type linear transmitter |
| WO2015024282A1 (en) * | 2013-08-19 | 2015-02-26 | 中兴通讯股份有限公司 | Signal processing method and apparatus, and mobile terminal |
| US9320039B2 (en) | 2008-10-31 | 2016-04-19 | Unwired Planet, Llc | Method and arrangement for user equipment switching between carriers in different frequency bands |
| WO2021134617A1 (en) * | 2019-12-31 | 2021-07-08 | 华为技术有限公司 | Signal processing system, signal processing module, and terminal apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3629136B2 (en) * | 1998-02-27 | 2005-03-16 | 富士通株式会社 | Multi-mode communication device |
| EP1914893A1 (en) * | 2006-10-16 | 2008-04-23 | The Swatch Group Research and Development Ltd. | Wide band frequency synthesiser with attenuation of low frequency spurs |
-
2008
- 2008-05-12 CN CN2008100671246A patent/CN101277496B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9320039B2 (en) | 2008-10-31 | 2016-04-19 | Unwired Planet, Llc | Method and arrangement for user equipment switching between carriers in different frequency bands |
| CN102664653A (en) * | 2012-05-17 | 2012-09-12 | 天津里外科技有限公司 | Mobile terminal and radio frequency front terminal thereof with radio frequency digital-to-analog conversion type linear transmitter |
| CN102664653B (en) * | 2012-05-17 | 2014-09-03 | 天津里外科技有限公司 | Mobile terminal and radio frequency front terminal thereof with radio frequency digital-to-analog conversion type linear transmitter |
| WO2015024282A1 (en) * | 2013-08-19 | 2015-02-26 | 中兴通讯股份有限公司 | Signal processing method and apparatus, and mobile terminal |
| WO2021134617A1 (en) * | 2019-12-31 | 2021-07-08 | 华为技术有限公司 | Signal processing system, signal processing module, and terminal apparatus |
| CN113412581A (en) * | 2019-12-31 | 2021-09-17 | 华为技术有限公司 | Signal processing system, signal processing module and terminal equipment |
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| Publication number | Publication date |
|---|---|
| CN101277496B (en) | 2012-06-06 |
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