CN200944653Y

CN200944653Y - GSM/TD-SCDMA dual-mode handset

Info

Publication number: CN200944653Y
Application number: CNU2006200179968U
Authority: CN
Inventors: 吴红; 凌小兵
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2006-08-29
Filing date: 2006-08-29
Publication date: 2007-09-05
Anticipated expiration: 2016-08-29

Abstract

A GSM/TD-SCDMA dual-mode handset is formed by changing a traditional phone into a dual-module one which comprises an extra TD-SCDMA module and a simulated switch compared with the traditional phone which comprises a GSM module, a radio-frequency unit, a memorizer, a keyboard or a touch screen, a display, a speaker, an acoustic pickup, a simulated circuit inlets. The TD-SCDMA module is connected to the GSM module via UART connections and signal wire. The simulated switch, controlled by the GSM module, controls the shift of audio frequency of the speaker and the acoustic pickup between the GSM and TD-SCDMA. The radio-frequency unit, the memorizer, keyboard or the touch screen, the display, the speaker and the acoustic pickup are used for the GSM module and the TD-SCDMA module together. The utility model realizes that the two terminal systems of mobile phones of the GSM/TD-SCDMA can be available at GSM/TD-SCDMA systems simultaneously.

Description

A kind of GSM/TD-SCDMA dual-mode handset

Technical field

The utility model relates to a kind of dual-mode handset, is specifically related to the GSM/TD-SCDMA dual-mode handset.

Background technology

Along with the high speed development of mobile communication technology, be gradually improved and possessed commercial ability as TD-SCDMA (Timedivision synchronous CDMA is hereinafter to be referred as the TD-SCDMA) technology of one of 3G communication standard.The TD-SCDMA mobile phone is as communication technology products of future generation, and its data service ability is strong, the speech quality height, and user capacity is big, has bigger development prospect.GSM (Global System for Mobile Communication, hereinafter to be referred as GSM) through for many years construction development, form the network of comprehensive covering, added the speech quality height, supported advantages such as high-speed mobile communication and other places roaming to have a large amount of cellphone subscribers.

Two kinds of standard mobile phones of GSM, TD-SCDMA respectively have pluses and minuses.Hot zone in the city can use the TD-SCDMA mobile phone to enjoy the 3G service, as high speed data, services such as online, video telephone, mobile TVs.In the bad place of the TD-SCDMA network coverage, can provide all standing service of complementarity with GSM mobile handset.Because network technology standard variation, two kinds of nets are in one quite long period and deposit in the network upgrade process, so just brought the differentiation of user terminal, along with increasing of many card users, these users have produced naturally increases terminal standard tenability to reduce the demand that terminal is carried number, in the market will be more and more stronger to the dual-mode handset demand that can make switching at any time between two kinds of standards of GSM/TD-SCDMA.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of GSM/TD-SCDMA dual-mode handset, GSM and the system integration of TD-SCDMA mobile phone terminal in a mobile phone, are realized the standby simultaneously of GSM and TD-SCDMA system and carry out voice, note and other data service respectively in each automatic network.

The mobile phone that the utility model provides, be to change traditional mobile phone into dual-mode handset, comprise gsm module, radio frequency unit, memory, keyboard or touch-screen, display, raising one's voice/pick-up, on the basis of traditional GSM mobile handset of analog circuit interface, increasing TD-SCDMA module and analog switch; Wherein be connected with status signal lines by the UART serial ports between TD-SCDMA module and the gsm module; Analog switch is controlled raising one's voice/the passage switching of pick-up voice-frequency channel between GSM and TD-SCDMA two standards by gsm module; Radio frequency unit, memory, keyboard or touch-screen, display, raise one's voice/pick-up is shared for gsm module and TD-SCDMA module by gsm module allotment.

Above-mentioned mobile phone can also comprise charge management circuit, is used for charging process is controlled.

Above-mentioned mobile phone can also comprise multimedia unit, is used for the processing of multi-medium data.

The utility model can be realized two kinds of mobile phone terminal function systems of GSM/TD-SCDMA, and standby in two kinds of standard networks of GSM/TD-SCDMA simultaneously is easy to use, because of a shared cover cell phone system public resource, has also reduced cost.

Description of drawings

Fig. 1 is existing GSM mobile handset structural representation;

Fig. 2 is existing TD-SCDMA handset structure schematic diagram;

Fig. 3 is a GSM/TD-SCDMA dual-mode handset structural representation described in the utility model.

Embodiment

Further specify technical scheme described in the utility model below in conjunction with the drawings and specific embodiments.

Accompanying drawing 1 is existing a kind of GSM mobile handset schematic diagram, in the drawings, loud speaker/pick-up, display (LCD), keyboard, analog interface circuit, multimedia unit, radio frequency unit, memory, Charge Management unit etc. all directly link to each other with gsm module, and mobile phone can only be realized the corresponding function in the GSM network.

Accompanying drawing 2 is existing TD-SCDMA mobile phone schematic diagram, in the drawings, loud speaker/pick-up, display (LCD), keyboard, analog interface circuit, multimedia unit, radio frequency unit, memory, Charge Management unit etc. all directly link to each other with the TD-SCDMA module, and mobile phone can only be realized the corresponding function in the TD-SCDMA network.Fig. 3 is the structural representation of a kind of embodiment of the utility model GSM/TD-SCDMA dual-mode handset.Dual-mode handset is made up of GSM and TD-SCDMA two big systems among the figure, links to each other with status signal lines by the UART serial ports between GSM and the TD-SCDMA system.Public resources such as radio frequency part, multimedia unit, memory, keyboard, display (LCD), analog circuit interface, charge management circuit all directly link to each other with gsm system, allocate these public resources by gsm system as master control system and realize dual-mode handset sharing public resource.It is pointed out that memory is a partial common, so the TD-SCDMA subsystem also needs the memory of oneself.

The shared radio frequency part of above mentioning is meant the software common sparing of relevant radio frequency, and radio frequency separates on the hardware, so two radio frequency part are arranged among Fig. 3.

The voice-frequency channel of loud speaker/pick-up of GSM and TD-SCDMA is directly controlled analog switch by gsm system and is carried out the passage switching.

By with gsm system as master control system, be responsible for the management and the allotment of whole dual-mode handset public resource, power by automatic monitoring and detecting GSM and two kinds of different frequency baseband signals of TD-SCDMA changes, and receive and send GSM and two kinds of different frequency baseband signals of TD-SCDMA, realize the standby simultaneously of GSM and TD-SCDMA system and in GSM and TD-SCDMA network, carry out voice, note and other data service respectively.

In the utility model, gsm system is responsible for GSM encoding and decoding speech, channel coding/decoding, encrypt and decrypt, equilibrium simultaneously and to various voice, the modulation of digital information is amplified, emission, reception, demodulation.Realize multi-medium data input, output and processing.Provide the SIM card interface, realize storage and charging controlled function to telephone number, the analog circuit interface provides the interface of external equipments such as data equipment, earphone, charger.

Data between TD-SCDMA system and the gsm system are transmitted with the form of AT order by the UART serial ports, can also be by the inquiry of status signal lines being obtained the residing state information of the other side.The gsm master system can receive the communication state information that the TD-SCDMA system passes back by UART serial ports, status signal lines by real time monitoring.The TD-SCDMA system then finish TD-SCDMA baseband signal and TD-SCDMA protocol processes with and radio-frequency receiving-transmitting.

Can define a cover and be specifically designed to the agreement that GSM and TD-SCDMA system carry out communication, the software of side can be done respective handling according to the concrete content of coming that passes of serial ports separately, such as: can and on LCD, show simultaneously etc. by the loud speaker on the GSM (Speaker) pronunciation when on LCD, showing power, the TD-SCDMA incoming call of TD-SCDMA network signal.

When the user passed through the GSM network function use mobile phone of this dual-mode handset, because gsm system is a master control system, mobile phone was equal to an independently GSM mobile handset under this kind mode.When the user uses the TD-SCDMA network of this dual-mode handset to use mobile phone, the input information of mobile phone key is passed to gsm system earlier and is handled, gsm system is passed to TD-SCDMA system by the UART serial ports that links to each other with the TD-SCDMA system with the form of AT order with the keypad information that obtains, the TD-SCDMA system carries out analyzing and processing with the key information that receives again, and this moment, the TD-SCDMA system was equal to an independently TD-SCDMA mobile phone.In the whole process of TD-SCDMA system works, the gsm master system can receive the communication state information that the TD-SCDMA system passes back by UART serial ports and status signal lines by real time monitoring, and analyzes demonstration.

Claims

1, a kind of mobile phone comprises gsm module, radio frequency unit, memory, keyboard or touch-screen, display, raises one's voice/pick-up, the analog circuit interface, it is characterized in that, also comprises TD-SCDMA module and analog switch;

Be connected with status signal lines by the UART serial ports between described TD-SCDMA module and the gsm module;

To raising one's voice/pick-up, the passage of RECEIVER/SPEAKER voice-frequency channel between GSM and TD-SCDMA two standards switches described analog switch by gsm module control;

Described radio frequency unit, keyboard or touch-screen, display, raise one's voice/pick-up is shared for gsm module and TD-SCDMA module by gsm module allotment.

2, the described mobile phone of claim 1 is characterized in that, also comprises charge management circuit, is used for charging process is controlled.

3, the described mobile phone of claim 1 is characterized in that, also comprises multimedia unit, is used for the processing of multi-medium data.