CN201263201Y

CN201263201Y - WCDMA/GSM dual-mode mobile phone architecture, dual-mode mobile phone architecture

Info

Publication number: CN201263201Y
Application number: CNU2008200008732U
Authority: CN
Inventors: 陆敏
Original assignee: ZTE Corp
Current assignee: Ox mobile technologies, LLC
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2009-06-24
Anticipated expiration: 2018-03-26

Abstract

The utility model discloses a WCDMA/GSM dual-mode handset architecture, which comprises a baseband chip, an aerial switch module group, a GSM power amplifier, a GSM transceiver, a WCDMA transceiver and at least one WCDMA RF front end module, wherein, the WCDMA RF front end module integrates the power amplifier at the corresponding frequency band of the WCDMA and a duplexer, which can realize the functions of WCDMA uplink power amplification and duplex transceiving simultaneously. The GSM transceiver and the WCDMA transceiver can be integrated into a dual-mode RF transceiving chip to realize the function of the GSM transceiver and the WCDMA transceiver. The architectural mode can reduce the usage quantity of chips and greatly improve the integration level of the handset.

Description

WCDMA/GSM dual-mode handset framework, dual-mode handset framework

Technical field

The utility model relates to a kind of mode mobile terminal framework, especially a kind of WCDMA/GSM dual-mode handset framework and a kind of dual-mode handset framework.

Background technology

At present, in WCDMA/GSM (WCDMA:Wideband CDMA, Wideband Code Division Multiple Access (WCDMA); GSM:Global System for Mobile, global system for mobile communications).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 radio-frequency (RF) transceiver 310, GSM power amplifier 330, WCDMA radio-frequency (RF) transceiver 320, at least one WCDMA power amplifier 340 and a duplexer 360.Because ITU (International Telecommunications Union) has divided ten BAND to satisfy country variant and the area frequency range application demand to WCDMA in the planning of WCDMA frequency spectrum, so support several BAND work in each WCDMA mobile phone scheme, just need corresponding several power amplifiers and duplexer.Therefore need a WCDMA power amplifier and a duplexer at least.

In the process of implementing the technical solution of the utility model, the inventor finds: need six chips at least at fore-end when the above-mentioned framework method that generally uses is realized, if the user demand of supporting the many BAND of WCDMA is arranged, that just needs more multicore sheet.In the mobile phone framework, use so many chip, make the circuit structure complexity, take the area of a large amount of PCB (printed circuit board (PCB)), be unfavorable for reducing cost, and increased the design debug difficulty.Mobile phone miniaturization development trend requires to occur the new higher architectural schemes of integrated level.

The utility model content

The utility model provides a kind of framework of WCDMA/GSM dual-mode handset.This framework mode can reduce the usage quantity of chip, improves the integrated level of mobile phone greatly.

In order to overcome the above problems, the utility model provides a kind of framework of WCDMA/GSM dual-mode handset, comprise a baseband chip, a duplexer module, a GSM power amplifier, a GSM transceiver, a WCDMA transceiver and at least one WCDMA RF front-end module, this WCDMA RF front-end module the is integrated power amplifier and the duplexer of WCDMA corresponding band can realize simultaneously that the WCDMA up-link power amplifies and the function of transmission duplex.

Wherein, said GSM transceiver and WCDMA transceiver can be integrated into a bimodulus rf chip, realize the function of GSM transceiver and WCDMA transceiver.

The utility model also provides a kind of framework of WCDMA/GSM dual-mode handset, comprise: a baseband chip, a duplexer module, a GSM power amplifier, at least one WCDMA power amplifier and at least one duplexer and bimodulus rf chip, wherein, this bimodulus rf chip is integrated with GSM transceiver and WCDMA transceiver, realizes the function of GSM transceiver and WCDMA transceiver.

The utility model also provides a kind of framework of dual-mode handset, comprise a baseband chip, one duplexer module, the first pattern transceiver, the second pattern transceiver, first mode power amplifier, and the second pattern RF front-end module of integrated second mode power amplifier and duplexer; Wherein, the first pattern transceiver/second pattern transceiver is in order to the signal of reception antenna switch module, carry out conversion to the received signal, and the signal after the conversion sent into baseband chip in order to handle reduction raw information, and/or, in order to receive the signal that baseband chip is sent into, carry out conversion to the received signal, and the signal after the conversion is sent to the first pattern amplifier and/or the second pattern RF front-end module; The first pattern amplifier, the second pattern RF front-end module, the signal in order to after the conversion that receives the transmission of the first pattern transceiver and/or the second pattern transceiver amplifies the signal after this conversion, and via the signal after the duplexer module emission amplification.

Wherein, the above-mentioned first pattern transceiver and the second pattern transceiver are integrated in a bimodulus rf chip.

Wherein, above-mentioned first pattern is GSM, and second pattern is WCDMA.The framework of the WCDMA/GSM dual-mode handset of the utility model preferred embodiment GSM transceiver and the integrated chip piece of WCDMA transceiver, has reduced number of chips to WCDMA power amplifier and the integrated chip piece of duplexer.Especially when WCDMA had the user demand of a plurality of BAND, the advantage that integrated level is high was more obvious, and the design simplification of WCDMA/GSM dual-mode handset and miniaturization development are had crucial meaning.

Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.

Other features and advantages of the utility model provide in explanation subsequently, partly can obviously find out from described explanation, maybe can find out from enforcement of the present utility model.The purpose of this utility model and other advantage can be understood, obtain from the structure that following written explanation, claim and accompanying drawing provide especially.

Description of drawings

The accompanying drawing of forming the part of this specification helps further to understand the utility model, and these accompanying drawings illustrate embodiment more of the present utility model, and can be used for illustrating principle of the present utility model with specification.In the accompanying drawing:

Fig. 1 is the configuration diagram of the present a kind of WCDMA/GSM dual-mode handset that generally uses;

Fig. 2 is the dual-mode handset configuration diagram according to the utility model first embodiment;

Fig. 3 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model second embodiment;

Fig. 4 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model the 3rd embodiment; And

Fig. 5 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model the 4th embodiment.

Embodiment

Further set forth below in conjunction with accompanying drawing according to specific embodiment of the utility model.

Fig. 2 is the dual-mode handset configuration diagram according to the utility model first embodiment.As shown in Figure 2, it comprises a baseband chip 10, one duplexer module, 20, the first pattern transceivers 31, the second pattern transceiver 32, first mode power amplifier 33, and the second pattern RF front-end module 35 of integrated second mode power amplifier 34 and duplexer 36; Wherein, the first pattern transceiver, 31/ second pattern transceiver 32 is in order to the signal of reception antenna switch module 20, carry out conversion to the received signal, and the signal after the conversion sent into baseband chip 10 in order to handle reduction raw information, and/or, in order to receive the signal that baseband chip 10 is sent into, carry out conversion to the received signal, and the signal after the conversion is sent to the first pattern amplifier 31 and/or the second pattern RF front-end module 35; The first pattern amplifier 31, the second pattern RF front-end module 35, in order to the signal after the conversion that receives the first pattern transceiver 31 and/or 32 transmissions of the second pattern transceiver, signal after this conversion is amplified, and via the signal after the 20 emission amplifications of duplexer module.Wherein, above-mentioned first transceiver 31 and second transceiver 32 can be integrated in a bimodulus rf chip.Preferably, above-mentioned first pattern is GSM, and second pattern is WCDMA.

For second pattern, at transmitting chain, rf modulated signal by 32 outputs of the second pattern transceiver inputs to RF front-end module 35, after second mode power amplifier 34 of RF front-end module 35 amplifies, signal is inputed to duplexer module 20 by the duplexer 36 of RF front-end module 35.Receiving link, the signal that enters duplexer module 20 is directly sent into the second pattern transceiver 32 via the duplexer 36 of RF front-end module 35.

Fig. 3 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model second embodiment.It mainly is made up of five parts, i.e. baseband chip 100, bimodulus rf chip 300, duplexer module 200, GSM power amplifier 330 and WCDMA RF front-end module 350.

Reception link at the WCDMA/GSM of the foregoing description dual-mode handset framework, electromagnetic wave signal enters the described switch module 200 of antenna, under the control of baseband chip 100, duplexer module 200 is selected corresponding standard corresponding work frequency range, and signal is sent into bimodulus rf chip 300.Bimodulus rf chip 300 can be supported the reception work of four frequency ranges of GSM (GSM850/GSM900/DCS/PCS) and at least three BAND of WCDMA at least, and its accepting state is controlled by baseband chip 100.Described bimodulus rf chip 300 adopts the zero intermediate frequency reception programme, is i/q signal with the radiofrequency signal single-conversion Direct Transform that receives, and sends into baseband chip 100, and finishes a series of processing such as demodulation, decoding by baseband chip 100, restores primary signal.

And at the transmitting chain of the WCDMA/GSM of the foregoing description dual-mode handset framework, a series of processing such as 100 pairs of primary signals of baseband chip are encoded, modulation, the I/Q modulation signal that produces GSM or WCDMA is input to bimodulus rf chip 300, and the radiating portion of bimodulus rf chip 300 carries out directly exporting required rf modulated signal after the conversion to the i/q signal of input.Equally, bimodulus rf chip 300 can be supported the emission work of four frequency ranges of GSM (GSM850/GSM900/DCS/PCS) and at least three BAND of WCDMA at least, and its emission state is controlled by baseband chip 100.

Rf modulated signal after the conversion is directly inputted into GSM power amplifier 330 or WCDMA RF front-end module 350, finished after the amplification of radio frequency signal power signal being inputed to duplexer module 200 by GSM power amplifier 330 or WCDMA RF front-end module 350, duplexer module 200 is finished the emission work of GSM or WCDMA rf modulated signal.Simultaneously, baseband chip 100 need be controlled bimodulus rf chip 300, duplexer module 200, GSM power amplifier module 330 and WCDMA RF front-end module 350, switches to guarantee that whole system is in correct operating state and carries out bimodulus.

In the framework of the WCDMA/GSM of the foregoing description dual-mode handset, WCDMA RF front-end module 350 is integrated WCDMA power amplifier and duplexer; Bimodulus rf chip 300 is integrated WCDMA transceiver and GSM transceiver can be supported the signal transmitting and receiving conversion of three BAND of WCDMA and four frequency ranges of GSM.WCDMA is a frequency division duplex system, and the power amplifier of duplexer and WCDMA is integrated in the chips, has simplified circuit, has also reduced the PCB size, and is especially when WCDMA in the dual-mode handset has the user demand of a plurality of BAND, bigger to mobile phone miniaturization meaning.

Fig. 4 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model the 3rd embodiment.Itself and embodiment difference shown in Figure 3 are that WCDMA transceiver 320 and GSM transceiver 310 are integrated into bimodulus rf chip 300, and WCDMA power amplifier 340 and duplexer 360 are still continued to use not integrated mode of the prior art.

Fig. 5 is the configuration diagram according to the WCDMA/GSM dual-mode handset of the utility model the 4th embodiment.Itself and embodiment difference shown in Figure 3 are that WCDMA power amplifier and duplexer are integrated into WCDMA RF front-end module 350 separately, and WCDMA transceiver 320 and GSM transceiver 310 are still continued to use not integrated mode of the prior art.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.

Claims

1. WCDMA/GSM dual-mode handset framework, it is characterized in that, comprise a baseband chip, a duplexer module, a GSM power amplifier, a GSM transceiver, a WCDMA transceiver and at least one WCDMA RF front-end module, each described WCDMA RF front-end module is all integrated WCDMA power amplifier and duplexer.

2. WCDMA/GSM dual-mode handset framework according to claim 1 is characterized in that, described GSM transceiver and described WCDMA transceiver are integrated into a bimodulus rf chip.

3. WCDMA/GSM dual-mode handset framework, it is characterized in that, comprise a baseband chip, a duplexer module, a GSM power amplifier, at least one WCDMA power amplifier and at least one duplexer and bimodulus rf chip, described bimodulus rf chip is integrated with GSM transceiver and WCDMA transceiver.

4. a dual-mode handset framework is characterized in that, comprises a baseband chip, and a duplexer module also comprises:

The first pattern transceiver, the second pattern transceiver, first mode power amplifier, and the second pattern RF front-end module of integrated second mode power amplifier and duplexer;

Wherein, the described first pattern transceiver/described second pattern transceiver is in order to receive the signal of described duplexer module, described signal is carried out conversion, and the signal after the conversion sent into baseband chip in order to handle reduction raw information, and/or, in order to receive the signal that described baseband chip is sent into, described signal is carried out conversion, and the signal after the conversion is sent to described first pattern amplifier and/or the described second pattern RF front-end module;

The described first pattern amplifier, the described second pattern RF front-end module, in order to the signal after the described conversion that receives the transmission of the first pattern transceiver and/or the described second pattern transceiver, signal after the described conversion is amplified, and via the signal after the described duplexer module emission amplification.

5. dual-mode handset framework according to claim 4 is characterized in that: described first pattern transceiver and the described second pattern transceiver are integrated in a bimodulus rf chip.

6. according to claim 4 or 5 described dual-mode handset frameworks, it is characterized in that: described first pattern is GSM, and described second pattern is WCDMA.