CN101287217B - SIM card switching device and method for mobile phone with double cards - Google Patents
SIM card switching device and method for mobile phone with double cards Download PDFInfo
- Publication number
- CN101287217B CN101287217B CN2008100977798A CN200810097779A CN101287217B CN 101287217 B CN101287217 B CN 101287217B CN 2008100977798 A CN2008100977798 A CN 2008100977798A CN 200810097779 A CN200810097779 A CN 200810097779A CN 101287217 B CN101287217 B CN 101287217B
- Authority
- CN
- China
- Prior art keywords
- sim card
- chip
- level
- choosing
- digital baseband
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
The invention provides an SIM card switch method for a dual-card mobile phone, wherein, a selected SIM card is switched to a working status by a terminal and the terminal provides one of two interface levels required by the SIM card utilizing 2G protocol or 3G protocol for the selected SIM card; communication is tried with the selected SIM card; if the communication succeeds, the terminal keeps providing the interface level to the SIM card, otherwise, the other interface level is provided to the selected SIM card; then the communication with the selected SIM card is tried and if the communication is successful, the supply of the other interface level to the selected SIM card is continued. In order to realize the method, the invention also provides an SIM card switch device for the dual-card mobile phone; the flexible switch of the two SIM cards can be realized no matter whether the two SIM cards in the mobile phone are supported by the 2G protocol and/ or the 3G protocol.
Description
Technical field
The present invention relates to a kind of communication system portable terminal, relate in particular to a kind of SIM card switching device shifter of double-card mobile phone.
Background technology
The normally used mobile phone of people is the single deck tape-recorder odd numbers, fuselage only is provided with a sim card slot, development along with mobile communication business, various mobile phone cards bring convenience to the user, when having only two kinds of cards of mobile phone use of a draw-in groove, need change card, more loaded down with trivial details, sometimes the user have to repurchase a mobile phone, causes expense to increase, and carries very inconvenient.
Released a kind of two card even numbers mobile phone in the market, this mobile phone is supported GSM (Global SystemFor Mobile Communication, global system for mobile communications) network, two sim card slots are set in its body can allow to insert simultaneously 2 SIM card of supporting the GSM network, switch two numbers easily, tackling different conversation colonies, or the card of selecting different ownership place is to save wandering fee.Also release a kind of dual-mode handset in the market, this mobile phone can be supported two kinds of network schemers, also be that two sim card slots are set in its body, can switch two SIM cards easily, the SIM card of being inserted can be the network schemer that belongs to different, be often referred to GSM network schemer and CDMA (Code DivisionMultiple Access, code division multiple access) network schemer.GSM network no matter, or cdma network all belongs to 2G (Second Generation, second generation mobile communication) network, so above-mentioned double-card mobile phone all is applied to the 2G network.
Present relatively 2G industry, 3G (3
RdGeneration, 3G (Third Generation) Moblie) industry has bigger advantage and wide prospect.The principal character of 3-G (Generation Three mobile communication system) is that colourful mobile multi-media service can be provided.Its design object is for power system capacity, the better communication quality bigger than second-generation system is provided, and want to realize seamless roam in the world better and, also will consider favorable compatibility simultaneously with existing second-generation system for the user provides the multiple business that comprises speech, data and multimedia etc.
Along with the startup of 3G network, the use of 3G mobile becomes a kind of inevitable.No matter the two cards of a present machine switch is to switch between the SIM card of jack per station between same network (GSM), still the switching of the SIM card between heterogeneous networks (GSM and CDMA) is all at second generation mobile communication, when 2G network and 3G network coexistence, need the consideration double-card mobile phone not only can support the SIM card of the SIM card of identical network in the 2G, heterogeneous networks to switch, also should be able to realize the switching of 2G/3G SIM card easily according to user's needs.
Summary of the invention
The technical problem to be solved in the present invention is SIM card switching device shifter and the changing method that proposes a kind of double-card mobile phone, and no matter two interior SIM card of mobile phone are to use the SIM card of 2G agreement and/or 3G agreement, all can realize the flexible switching between two SIM card.
In order to solve the problems of the technologies described above, the invention provides a kind of SIM card switching device shifter of double-card mobile phone, be arranged in the mobile phone body and be connected with two SIM card, comprise a digital baseband chip and a selection commutation circuit, wherein:
Digital baseband chip is used for communicating with the SIM card of choosing and replying to selecting commutation circuit to transmit control signal, and is used for when the communication answer failed to selecting commutation circuit to send level conversion indication;
The control signal of selecting commutation circuit to be used for sending according to digital baseband chip switches to operating state with the SIM card of choosing, a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, and provides another kind of level for the described SIM card of choosing when indicating when receiving level conversion that digital baseband chip sends.
Further, above-mentioned switching device shifter also can have following characteristics:
Described selection commutation circuit comprises a level transferring chip and a switch switches chip;
Described switch switches the control signal that chip is used for sending according to digital baseband chip the SIM card of choosing is switched to operating state, and the signal that sends over of incoming level conversion chip and send it to the described SIM card of choosing;
Described level transferring chip is used to receive the signal that digital baseband chip sends over and sends it to switch switches chip, and is used for sending the level conversion indication according to digital baseband chip and carries out level conversion.
Further, above-mentioned switching device shifter also can have following characteristics:
There are two universal input/output interfaces of drawing in described digital baseband chip, and described interface is connected to level transferring chip and switch switches on the control pin of chip; Described digital baseband chip is used for enabling of control level conversion chip and control switch to switch chip by the output level of controlling described two interfaces the SIM card of choosing is switched to operating state.
Further, above-mentioned switching device shifter also can have following characteristics:
Described digital baseband chip also is used to the SIM card of choosing that input signal is provided, and described signal is exported from digital baseband chip, and process is transferred to the described SIM card of choosing with level transferring chip and switch switching chip that described digital baseband chip links to each other successively; Described SIM card input signal comprises the interface level after data-signal, clock signal, reset signal and the conversion.
Further, above-mentioned switching device shifter also can have following characteristics:
The described level conversion indication that digital baseband chip sends is meant the level selection signal of described digital baseband chip output; Described digital baseband chip is used for selecting the level of signal to control the needed interface level of SIM card a kind of that 2G agreement or 3G agreement are used in described level transferring chip output by controlling described level.
In order to solve the problems of the technologies described above, the present invention also provides a kind of SIM card changing method of double-card mobile phone, wherein:
Terminal switches to operating state with the SIM card of choosing and a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, communicate with the described SIM card of choosing then, continue to provide this kind interface level if communicate by letter successfully then remain described SIM card; Otherwise for the described SIM card of choosing provides another kind of interface level, communicate with the described SIM card of choosing then, if communicate by letter successfully then keep continuing to provide this another kind interface level to the described SIM card of choosing.
Further, above-mentioned changing method also can have following characteristics:
Digital baseband chip comes enabling of control level conversion chip and control switch to switch chip the SIM card of choosing is switched to operating state by controlling two output levels that are connected respectively to the universal input/output interface on the control pin that level transferring chip and switch switch chip.
Further, above-mentioned changing method also can have following characteristics:
Digital baseband chip outputting data signals, clock signal and reset signal, process is transferred to the described SIM card of choosing with level transferring chip and switch switching chip that described digital baseband chip links to each other successively.
Further, above-mentioned changing method also can have following characteristics:
The level that digital baseband chip is input to level transferring chip by control is selected the level of signal to control described level transferring chip output and is used a kind of level in the needed interface level of SIM card of 2G agreement or 3G agreement, and the interface level that will switch after chip will be changed through switch offers the SIM card of choosing.
The SIM card switching device shifter of a kind of double-card mobile phone of the present invention, no matter two interior SIM card of mobile phone are to use the SIM card of 2G agreement and/or 3G agreement, all can switch between two SIM card neatly according to customer demand or network resource status.
Description of drawings
Fig. 1 is the SIM card switching device shifter structure principle chart of a kind of double-card mobile phone of the embodiment of the invention.
Fig. 2 carries out the circuit theory diagrams that SIM card is switched for a kind of double-card mobile phone of the embodiment of the invention.
Fig. 3 carries out the flow chart that SIM card is switched for a kind of double-card mobile phone of the embodiment of the invention.
Embodiment
The present invention proposes a kind of SIM card switching device shifter and changing method of double-card mobile phone, no matter two interior SIM card of mobile phone are to use the SIM card of 2G agreement and/or 3G agreement, all can realize the flexible switching between two SIM card.It is conceived substantially: at first communicate by 2G agreement and selected SIM card, communicate by 2G agreement and the SIM card selected if communicate by letter successfully then continue; Otherwise communicate by 3G agreement and selected SIM card.
Below in conjunction with accompanying drawing the present invention is done and to be described in further detail.
The present invention also provides a kind of SIM card switching device shifter of a kind of double-card mobile phone as shown in Figure 1, and described device is arranged in the mobile phone body and with two SIM card and is connected, and comprise a digital baseband chip and and select commutation circuit, wherein:
Digital baseband chip is used for communicating with the SIM card of choosing and replying to selecting commutation circuit to transmit control signal, and is used for when the communication answer failed to selecting commutation circuit to send level conversion indication;
The control signal of selecting commutation circuit to be used for sending according to digital baseband chip switches to operating state with the SIM card of choosing, a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, and provides another kind of level for the described SIM card of choosing when indicating when receiving level conversion that digital baseband chip sends.
Further, described selection commutation circuit comprises a level transferring chip and switch switching chip; Described switch switches the control signal that chip is used for sending according to digital baseband chip the SIM card of choosing is switched to operating state, and the signal that sends over of incoming level conversion chip and send it to the described SIM card of choosing; Described level transferring chip is used to receive the signal that digital baseband chip sends over and sends it to switch switches chip, and is used for sending the level conversion indication according to digital baseband chip and carries out level conversion.
The level transferring chip that described digital baseband chip and described selection commutation circuit comprise and switch switch between the chip annexation as shown in Figure 2, wherein:
There are two universal input/output interfaces of drawing in described digital baseband chip, and described interface is connected to level transferring chip and switch switches on the control pin of chip; Described digital baseband chip is used for enabling of control level conversion chip and control switch to switch chip by the output level of controlling described two interfaces the SIM card of choosing is switched to operating state.
Described digital baseband chip also is used to the SIM card of choosing that input signal is provided, and described signal is exported from digital baseband chip, and process is transferred to the described SIM card of choosing with level transferring chip and switch switching chip that described digital baseband chip links to each other successively; Described SIM card input signal comprises the interface level after data-signal, clock signal, reset signal and the conversion.
The described level indication that digital baseband chip sends is meant the level selection signal of described digital baseband chip output; Described digital baseband chip is used for selecting the level of signal to control the needed interface level of SIM card a kind of that 2G agreement or 3G agreement are used in described level transferring chip output by controlling described level.
To introduce in detail below and use above-mentioned switching device shifter to carry out the SIM card switching processing flow process of double-card mobile phone, idiographic flow comprises the steps: as shown in Figure 3
Step S300: select a SIM card;
The user can need select the SIM card of switching by the function menu of described double-card mobile phone, can certainly need select the SIM card of switching by other switching modes of mobile phone side agreement, such as: can select by a shortcut on the mobile phone.If only there is a SIM card in the described double-card mobile phone, then this SIM card is the SIM card of acquiescence selection, and can't select another SIM card this moment;
Described two SIM cards that switch can be to use the SIM card of 2G agreement and/or 3G agreement;
Step S310: the SIM card of choosing is switched to operating state, a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, and communicate with the described SIM card of choosing;
The digital baseband chip of described double-card mobile phone is controlled by the level of controlling its two universal input/output interfaces of drawing and is selected commutation circuit will the described SIM card of choosing to switch to operating state and a kind of level in the needed interface level of SIM card of use 2G agreement or 3G agreement is provided for the described SIM card of choosing;
Described selection commutation circuit comprises that a level transferring chip and a switch switch chip, and described digital baseband chip specifically comprises the control of described two chips that comprise in the described selection commutation circuit:
Described digital baseband chip selects the high/low level of signal (signal of the VSEL of level transferring chip end input in the accompanying drawing 2) to make level transferring chip export a kind of level in the needed interface level of SIM card that uses 2G agreement or 3G agreement by the level of the described level transferring chip of control;
Described digital baseband chip also provides input signal for the SIM card of choosing, and described signal switches chip by the output pin output of digital baseband chip via exporting to switch after the level transferring chip processing, switches chip by switch again and sends to the SIM card of choosing; Described input signal comprises: data-signal, clock signal, reset signal and the SIM card interface level after the level transferring chip conversion;
Described digital baseband chip communicates according to the agreement and the described SIM card of choosing of end side agreement, such as: to the described SIM card of choosing send a RST signal test described digital baseband chip can with the SIM card success communication of choosing; The described SIM card of choosing agreement is by appointment returned an answer signal and is given described digital baseband chip, when concrete between the two communication response mode has just been started shooting with present mobile phone, it is identical that digital baseband chip in the mobile phone and SIM card communicate the mode of replying, and repeats no more here;
Step S320: described digital baseband chip receives the answer signal that described SIM card returns and judges whether described answer signal is correct;
The answer signal that described digital baseband chip returns described SIM card according to the agreement of end side agreement is judged, if described answer signal is correct, then enters step S330; If the described answer signal mistake that described digital baseband chip is received or do not receive answer signal thinks that then the answer signal that returns is wrong, enters step S340;
Step S330: remain the described SIM card of choosing and continue to provide this kind level constant, finish;
Described digital baseband chip and the described SIM card of choosing can be carried out proper communication, and continuing as the described SIM card of choosing provides this kind level constant;
Terminal can show the described SIM card handover success of choosing, and described display packing mode that is can be according to mobile phone predefined or acquiescence shows, such as: the function menu by described terminal shows, perhaps can also show by the indicator light on the terminal;
Step S340:, and communicate with the described SIM card of choosing for the described SIM card of choosing provides another kind of level;
Concrete operation method repeats no more here as described in the step S310;
Step S350: described digital baseband chip receives the answer signal that described SIM card returns and judges whether described answer signal is correct;
The answer signal that described digital baseband chip returns described SIM card according to the agreement of end side agreement is judged, if described answer signal is correct, then enters step S360; If the described answer signal mistake that described digital baseband chip is received or do not receive answer signal, think that then the answer signal that returns is wrong, finish this flow process, also can inform the terminal communication failure in another embodiment, finish this flow process then by user interface display reminding information;
Step S360: remain the described SIM card of choosing and continue to provide this another kind level constant, finish;
Described digital baseband chip and the described SIM card of choosing can be carried out proper communication, and continuing as the described SIM card of choosing provides this another kind level constant;
Terminal can show the described SIM card handover success of choosing, and described display packing mode that is can be according to mobile phone predefined or acquiescence shows, such as: the function menu by described terminal shows, perhaps can also show by the indicator light on the terminal.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the SIM card switching device shifter of a double-card mobile phone is arranged in the mobile phone body and with two SIM card and is connected, comprises a digital baseband chip and a selection commutation circuit, it is characterized in that:
Digital baseband chip is used for communicating with the SIM card of choosing and replying to selecting commutation circuit to transmit control signal, and is used for when the communication answer failed to selecting commutation circuit to send level conversion indication;
The control signal of selecting commutation circuit to be used for sending according to digital baseband chip switches to operating state with the SIM card of choosing, a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, and provides another kind of level for the described SIM card of choosing when indicating when receiving level conversion that digital baseband chip sends.
2. switching device shifter as claimed in claim 1 is characterized in that:
Described selection commutation circuit comprises a level transferring chip and a switch switches chip;
Described switch switches the control signal that chip is used for sending according to digital baseband chip the SIM card of choosing is switched to operating state, and the signal that sends over of incoming level conversion chip and send it to the described SIM card of choosing;
Described level transferring chip is used to receive the signal that digital baseband chip sends over and sends it to switch switches chip, and is used for sending the level conversion indication according to digital baseband chip and carries out level conversion.
3. switching device shifter as claimed in claim 2 is characterized in that:
There are two universal input/output interfaces of drawing in described digital baseband chip, and described interface is connected to level transferring chip and switch switches on the control pin of chip; Described digital baseband chip is used for enabling of control level conversion chip and control switch to switch chip by the output level of controlling described two interfaces the SIM card of choosing is switched to operating state.
4. switching device shifter as claimed in claim 2 is characterized in that:
Described digital baseband chip also is used to the SIM card of choosing that input signal is provided, and described signal is exported from digital baseband chip, and process is transferred to the described SIM card of choosing with level transferring chip and switch switching chip that described digital baseband chip links to each other successively; Described SIM card input signal comprises the interface level after data-signal, clock signal, reset signal and the conversion.
5. switching device shifter as claimed in claim 2 is characterized in that:
The described level conversion indication that digital baseband chip sends is meant the level selection signal of described digital baseband chip output; Described digital baseband chip is used for selecting the level of signal to control the needed interface level of SIM card a kind of that 2G agreement or 3G agreement are used in described level transferring chip output by controlling described level.
6. the SIM card changing method of a double-card mobile phone is characterized in that:
Terminal switches to operating state with the SIM card of choosing and a kind of in the needed two kinds of interface levels of SIM card that use 2G agreement or 3G agreement is provided for the described SIM card of choosing, communicate with the described SIM card of choosing then, continue to provide this kind interface level if communicate by letter successfully then remain described SIM card; Otherwise for the described SIM card of choosing provides another kind of interface level, communicate with the described SIM card of choosing then, if communicate by letter successfully then keep continuing to provide this another kind interface level to the described SIM card of choosing.
7. changing method as claimed in claim 6 is characterized in that:
Digital baseband chip comes enabling of control level conversion chip and control switch to switch chip the SIM card of choosing is switched to operating state by controlling two output levels that are connected respectively to the universal input/output interface on the control pin that level transferring chip and switch switch chip.
8. changing method as claimed in claim 6 is characterized in that:
Digital baseband chip outputting data signals, clock signal and reset signal, process is transferred to the described SIM card of choosing with level transferring chip and switch switching chip that described digital baseband chip links to each other successively.
9. changing method as claimed in claim 6 is characterized in that:
The level that digital baseband chip is input to level transferring chip by control is selected the level of signal to control described level transferring chip output and is used a kind of level in the needed interface level of SIM card of 2G agreement or 3G agreement, and the interface level that will switch after chip will be changed through switch offers the SIM card of choosing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100977798A CN101287217B (en) | 2008-05-29 | 2008-05-29 | SIM card switching device and method for mobile phone with double cards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100977798A CN101287217B (en) | 2008-05-29 | 2008-05-29 | SIM card switching device and method for mobile phone with double cards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101287217A CN101287217A (en) | 2008-10-15 |
| CN101287217B true CN101287217B (en) | 2011-05-11 |
Family
ID=40059135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100977798A Expired - Fee Related CN101287217B (en) | 2008-05-29 | 2008-05-29 | SIM card switching device and method for mobile phone with double cards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101287217B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104953A (en) * | 2009-12-17 | 2011-06-22 | 深圳富泰宏精密工业有限公司 | Double card mobile phone and smart card registration method thereof |
| EP2464153A1 (en) | 2010-12-10 | 2012-06-13 | ST-Ericsson SA | Switching active subscriber identity of a communication |
| CN102548046B (en) * | 2010-12-24 | 2017-05-03 | 深圳市经纬科技有限公司 | Three-card dual-standby mobile phone and method of realizing three-card dual-standby function in same |
| EP2490492B1 (en) | 2011-02-19 | 2016-04-20 | ST-Ericsson SA | Subscriber identity switch of a communication terminal |
| US8774811B2 (en) * | 2011-06-17 | 2014-07-08 | Mediatek Inc. | Method for selecting optimal radio access technology and communication apparatuses utilizing the same |
| CN102883470B (en) * | 2011-07-12 | 2016-06-29 | 联发科技股份有限公司 | The priority of communicator and Subscriber Identity Module and radio activity arrangement method |
| CN102647812A (en) * | 2012-03-20 | 2012-08-22 | 广东欧珀移动通信有限公司 | Automatic starting method for 3G function of multi-card mobile phone |
| CN104581846B (en) * | 2014-12-16 | 2018-02-16 | 广东欧珀移动通信有限公司 | A kind of method and device of double card double standby mobile phone intelligent high-speed online |
| CN107094313A (en) * | 2017-04-11 | 2017-08-25 | 成都特斯拉云网络技术有限公司 | Double SIM card field communication system |
| CN107749949B (en) * | 2017-11-02 | 2020-08-18 | 奇酷互联网络科技（深圳）有限公司 | Camera self-adaption method, camera self-adaption device and electronic equipment |
| CN110324818A (en) * | 2018-03-29 | 2019-10-11 | 上海中兴软件有限责任公司 | The transmission method and circuit of signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781649Y (en) * | 2005-04-11 | 2006-05-17 | 广州新软计算机技术有限公司 | Automatic switching device for double SIM cards in vehicle positioning terminal |
| CN201032743Y (en) * | 2006-12-27 | 2008-03-05 | 龙旗科技(上海)有限公司 | Dual-card automatic identification device and double-mode mobile phone equipped with the same |
| CN101184293A (en) * | 2007-12-13 | 2008-05-21 | 展讯通信（上海）有限公司 | Dual-card intelligent switch method for mobile phone |
-
2008
- 2008-05-29 CN CN2008100977798A patent/CN101287217B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781649Y (en) * | 2005-04-11 | 2006-05-17 | 广州新软计算机技术有限公司 | Automatic switching device for double SIM cards in vehicle positioning terminal |
| CN201032743Y (en) * | 2006-12-27 | 2008-03-05 | 龙旗科技(上海)有限公司 | Dual-card automatic identification device and double-mode mobile phone equipped with the same |
| CN101184293A (en) * | 2007-12-13 | 2008-05-21 | 展讯通信（上海）有限公司 | Dual-card intelligent switch method for mobile phone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101287217A (en) | 2008-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101287217B (en) | SIM card switching device and method for mobile phone with double cards | |
| US8554276B2 (en) | Apparatus and method for controlling subscriber identity module card | |
| CN102238701A (en) | Apparatus and method for automatic SIM card selection according to network environment in dual mode terminal | |
| CN101111022B (en) | Multi-module machine and implementing method thereof | |
| CN101448345A (en) | Mobile terminal and stand-by switching method thereof | |
| CN101340660A (en) | Multi-mode mobile terminal and multi-mode switching method | |
| US8224292B2 (en) | Apparatus for sensing smart-card in dual mode portable terminal and method thereof | |
| CN103052175A (en) | Mobile terminal and application display method of mobile terminal | |
| CN101287236A (en) | Connecting method for mobile phone with double channels and mobile phone with double channels | |
| CN102760110A (en) | Multiple subscriber identity module controller | |
| CN102664975B (en) | A kind of micro SD card and mobile phone with Wi-Fi function | |
| CN108882319A (en) | Mobile network's switching method, mobile terminal and computer readable storage medium | |
| KR20150082506A (en) | Double-mode and double-standby mobile terminal and communication method thereof | |
| US8494578B2 (en) | Method for display of dual standby portable terminal and apparatus thereof | |
| CN102158824A (en) | Method and system for receiving and sending multimedia message based on dual-mode terminal as well as terminal | |
| CN101159452B (en) | Calling and called process method, process module and terminal system of multi-card terminal | |
| CN101247597A (en) | Single-chip dual-SIM dual-standby communication terminal short message management method | |
| CN101009891A (en) | Dialing method and system for multi-mode mobile terminal | |
| CN201345679Y (en) | Double-module wireless terminal | |
| CN100589602C (en) | A transmission method and system of multimode mobile terminal SMS service | |
| CN101834934B (en) | Method and related device for processing data in dual-mode dual-standby terminal | |
| CN101175273B (en) | System and method for managing power of dbdm terminal | |
| CN101072437A (en) | Method and device for executing service for selecting different stand by numbers of multi-modeterminal | |
| CN102957788B (en) | Method for reading and writing card of mobile terminal with double base-band chips | |
| CN201674672U (en) | Cellular phones with plural SIM (subscriber identification module) cards and control circuit of same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |