CN105451309A - SIM card control system and method - Google Patents
SIM card control system and method Download PDFInfo
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- CN105451309A CN105451309A CN201410309465.5A CN201410309465A CN105451309A CN 105451309 A CN105451309 A CN 105451309A CN 201410309465 A CN201410309465 A CN 201410309465A CN 105451309 A CN105451309 A CN 105451309A
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- sim card
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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 invention relates to the technical field of electronic communication, and specifically relates to an SIM card control system. The system comprises an SIM card controller which outputs a control instruction under the control of an external command; and an input/output unit which is connected between the SIM card controller and an SIM card, and is used for outputting a control signal to the SIM card according to the control instruction. The SIM card controller comprises a judgment unit, and the judgment unit is used for judging an external command, controlling the input/output unit to lock and store the control signal according to the type of the external command, and enabling the SIM card controller to be enter in a sleeping mode. The system can guarantee the state stability of the SIM card while turning off the SIM card controller, cannot cause an error when the SIM card is used again, and cannot cause the falling of the card. The system reduces the power consumption at the sleeping mode.
Description
Technical field
The present invention relates to technical field of electronic communication, be specifically related to a kind of SIM card control system.
Background technology
SIM (SubscriberIdentityModule; subscriber identification module) card be module important in mobile communication system; save customized information and the network-related data of user; in order to the power consumption of the system of saving; SIM card usually can enter sleep state or power down mode; to save electric current; but; on current platform, SIM card controller (SIM card controller) is after SIM card enters sleep state; can not close; mainly because after closing SIM card controller, the control signal state labile of SIM card, can cause SIM card to be leaked electricity.
Summary of the invention
The object of the invention is to, a kind of SIM card control system is provided, solves above technical problem;
The present invention also aims to, a kind of SIM card control method is provided, solves above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of SIM card control system, wherein, comprises,
SIM card controller, exports control command under an external command effect;
Input-output unit, is connected between described SIM card controller and a SIM card, in order to export control signal according to described control command to SIM card;
Described SIM card controller comprises a judging unit, for judging described external command and the state of input-output unit to described control signal latches according to the Type Control of described external command, and makes described SIM card controller enter sleep pattern.
Preferably, also comprise an independently power supply module, be connected with described input-output unit, to provide the operating voltage of described input-output unit.
Preferably, described power supply module also connects described SIM card, to connect the power supply input port of described SIM card.
Preferably, described power supply module adopts low pressure difference linear voltage regulator.
Preferably, described control signal comprises clock signal, data-signal and reset signal.
Preferably, described SIM card controller, described input-output unit are arranged on a baseband chip.
The present invention also provides a kind of SIM card control method, comprises the step entering sleep pattern, specific as follows:
Step 1, baseband system enters sleep pattern;
Step 2, SIM card enters sleep pattern;
Step 3, SIM card controller sends a command to input-output unit with latch control signal under an external command effect, and enters sleep pattern.
Preferably, after step 3, also comprise wake-up step, specific as follows:
Step 4, wakes SIM card controller up under an external command effect;
Step 5, SIM card controller access SIM card.
Preferably, described control signal comprises clock signal, data-signal and reset signal.
Preferably, in step 3, in the described control signal be latched, described data-signal and described reset signal are high level, and described clock signal is low level.
beneficial effect: owing to adopting above technical scheme, the present invention can guarantee that SIM card is in stable condition while closedown SIM card controller, can not make mistakes, can not fall card when reusing SIM card; Reduce the power consumption of system sleep mode.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is control method schematic flow sheet of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
With reference to Fig. 1, a kind of SIM card control system, wherein, comprises,
SIM card controller 1, exports control command under an external command effect;
Input-output unit 2, is connected between SIM card controller 1 and a SIM card 3, in order to export control signal according to control command to SIM card 3;
SIM card controller 1 comprises a judging unit, for judging the type of external command, and latches according to the state of Type Control input-output unit 2 pairs of control signals of external command, and SIM card controller 1 is slept.
Due to SIM card 3 upon entering the sleep state, need to guarantee control signal state, the present invention controls input-output unit 2 pairs of control signals state when external command is sleep state order latches, and SIM card controller 1 is slept.While closing the border SIM card controller 1, pin the state of control signal, under guaranteeing that SIM card 3 is in stable state, save the electric current of system sleep state to greatest extent, particularly the electric current of SIM card controller 1 part.
As a kind of preferred embodiment of the present invention, also comprise an independently power supply module, be connected with input-output unit 2, to provide the operating voltage of input-output unit 2.Power supply module is independently relative to the power supply of SIM card controller 1.
As a kind of preferred embodiment of the present invention, power supply module also connects SIM card, to connect the power supply input port of SIM card.Dissimilar according to SIM card 3, supply power voltage can be 5V, 3V or 1.8V.
As a kind of preferred embodiment of the present invention, power supply module can adopt low pressure difference linear voltage regulator (SIMLDO).Low pressure difference linear voltage regulator (LDO, LowDropoutregulator) can realize that less input/output voltage is poor, circuit structure is simple, it is little and without switching noise to take printed circuit board area.
As a kind of preferred embodiment of the present invention, control signal comprises clock signal (SIMCLK), data-signal (SIMDATA) and reset signal (SIMRESET).Input/output interface unit 2 is connected to the corresponding port of SIM card 3 respectively by clock signal (SIMCLK), data-signal (SIMDATA) and reset signal (SIMRESET).
As a kind of preferred embodiment of the present invention, SIM card controller 1 and input-output unit 2 can be arranged on a baseband chip.
The present invention also provides a kind of SIM card control method, with reference to Fig. 2, comprises the step entering sleep pattern, specific as follows:
Step 1, baseband system enters sleep pattern;
Step 2, SIM card enters sleep pattern;
Step 3, SIM card controller 1 sends a command to input-output unit 2 with latch control signal under an external command effect, and enters sleep pattern.
As a kind of preferred embodiment of the present invention, after step 3, also comprise wake-up step, specific as follows:
Step 4, wakes SIM card controller 1 up under an external command effect;
Step 5, SIM card accessed by SIM card controller 1.
As a kind of preferred embodiment of the present invention, control signal comprises clock signal, data-signal and reset signal.
As a kind of preferred embodiment of the present invention, in step 3, in the control signal be latched, data-signal and reset signal are high level, and clock signal is low level.
SIM card 3 of the present invention upon entering the sleep state, need to guarantee that reset signal is high level, clock signal is low level, data-signal is high level, so while closing the border SIM card controller 1, pin the state of these three signals, under guaranteeing that SIM card 3 is in stable state, save the electric current of system sleep state to greatest extent, particularly the electric current of SIM card controller 1 part.The present invention can not make mistakes when can make to reuse SIM card 3, can not fall card; Reduce the power consumption of system sleep mode.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection range is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations specification of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (10)
1. a SIM card control system, is characterized in that, comprises,
SIM card controller, exports control command under an external command effect;
Input-output unit, is connected between described SIM card controller and a SIM card, in order to export control signal according to described control command to described SIM card;
Described SIM card controller comprises a judging unit, for judging described external command and the state of input-output unit to described control signal latches according to the Type Control of described external command, and makes described SIM card controller enter sleep pattern.
2. a kind of SIM card control system according to claim 1, is characterized in that, also comprises an independently power supply module, is connected, to provide the operating voltage of described input-output unit with described input-output unit.
3. a kind of SIM card control system according to claim 2, is characterized in that, described power supply module also connects described SIM card, to connect the power supply input port of described SIM card.
4. a kind of SIM card control system according to claim 2, is characterized in that, described power supply module adopts low pressure difference linear voltage regulator.
5. a kind of SIM card control system according to claim 1, it is characterized in that, described control signal comprises clock signal, data-signal and reset signal.
6. a kind of SIM card control system according to claim 1, is characterized in that, described SIM card controller, described input-output unit are arranged on a baseband chip.
7. a SIM card control method, is characterized in that, comprises the step entering sleep pattern, specific as follows:
Step 1, baseband system enters sleep pattern;
Step 2, SIM card enters sleep pattern;
Step 3, SIM card controller sends a command to input-output unit with latch control signal under an external command effect, and enters sleep pattern.
8. a kind of SIM card control method according to claim 7, is characterized in that, after step 3, also comprise wake-up step, specific as follows:
Step 4, wakes SIM card controller up under an external command effect;
Step 5, SIM card controller access SIM card.
9. a kind of SIM card control method according to claim 7, it is characterized in that, described control signal comprises clock signal, data-signal and reset signal.
10. a kind of SIM card control method according to claim 9, is characterized in that, in step 3, in the described control signal be latched, described data-signal and described reset signal are high level, and described clock signal is low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309465.5A CN105451309B (en) | 2014-06-30 | 2014-06-30 | SIM card control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309465.5A CN105451309B (en) | 2014-06-30 | 2014-06-30 | SIM card control system and method |
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| CN105451309A true CN105451309A (en) | 2016-03-30 |
| CN105451309B CN105451309B (en) | 2019-12-27 |
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| CN201410309465.5A Active CN105451309B (en) | 2014-06-30 | 2014-06-30 | SIM card control system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108875881A (en) * | 2017-05-11 | 2018-11-23 | 展讯通信（上海）有限公司 | SIM card method for controlling power supply, device and mobile terminal |
| 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 |
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| CN101478840A (en) * | 2009-01-16 | 2009-07-08 | 上海闻泰电子科技有限公司 | SIM card control circuit for single-chip dual-mode mobile terminal and control method thereof |
| CN102098390A (en) * | 2011-03-15 | 2011-06-15 | 惠州Tcl移动通信有限公司 | Method for recovering subscriber identity module (SIM) of mobile phone in case of data transmission error and mobile phone |
| CN102158599A (en) * | 2011-03-15 | 2011-08-17 | 上海艾为电子技术有限公司 | Wireless terminal and multi-SIM (subscriber identity module) card connecting device thereof |
| CN102163071A (en) * | 2011-01-20 | 2011-08-24 | 海能达通信股份有限公司 | Control circuit and power control method during reset thereof |
| CN102710827A (en) * | 2012-06-11 | 2012-10-03 | 无锡力芯微电子股份有限公司 | Method and mobile communication terminal for rapidly responding hot plug of SIM card |
| CN104135757A (en) * | 2014-06-20 | 2014-11-05 | 北京创毅视讯科技有限公司 | Method and device of reducing power consumption of terminal as well as baseband chip |
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| CN101478840A (en) * | 2009-01-16 | 2009-07-08 | 上海闻泰电子科技有限公司 | SIM card control circuit for single-chip dual-mode mobile terminal and control method thereof |
| CN102163071A (en) * | 2011-01-20 | 2011-08-24 | 海能达通信股份有限公司 | Control circuit and power control method during reset thereof |
| CN102098390A (en) * | 2011-03-15 | 2011-06-15 | 惠州Tcl移动通信有限公司 | Method for recovering subscriber identity module (SIM) of mobile phone in case of data transmission error and mobile phone |
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| CN104135757A (en) * | 2014-06-20 | 2014-11-05 | 北京创毅视讯科技有限公司 | Method and device of reducing power consumption of terminal as well as baseband chip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108875881A (en) * | 2017-05-11 | 2018-11-23 | 展讯通信（上海）有限公司 | SIM card method for controlling power supply, device and mobile terminal |
| 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 |
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| Publication number | Publication date |
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| CN105451309B (en) | 2019-12-27 |
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