CN102868992B - Device and method for shielding terminal signal, device and method for removing shielding of terminal signal, and terminal signal management system - Google Patents
Device and method for shielding terminal signal, device and method for removing shielding of terminal signal, and terminal signal management system Download PDFInfo
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- CN102868992B CN102868992B CN201210291617.4A CN201210291617A CN102868992B CN 102868992 B CN102868992 B CN 102868992B CN 201210291617 A CN201210291617 A CN 201210291617A CN 102868992 B CN102868992 B CN 102868992B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000011664 signaling Effects 0.000 claims description 68
- 238000012216 screening Methods 0.000 claims description 27
- 239000000725 suspension Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The invention provides a method for shielding a terminal signal. The method comprises the following steps of: reading an integrated circuit card identification code of a terminal subscriber identity module (SIM), querying whether terminal information is recorded in a database; if the terminal information is recorded in the database, executing the next step; if the terminal information is not recorded in the database, reading an international mobile user identification code of the terminal SIM, recording the integrated circuit card identification code and the international mobile user identification code as the terminal information, and executing the next step; transmitting a file content update instruction to the SIM, and emptying the international mobile user identification code in an international mobile user identification number file of the SIM; and transmitting a restarting instruction to the SIM, and restarting a terminal. The invention also provides a device for shielding the terminal signal, a method and a device for removing shielding of the terminal signal, and a terminal signal management system. By the devices, the methods and the system, a signal shielding range can be expanded, and utilization cost can be reduced.
Description
Technical field
The application relates to movable signal processing technology field, particularly relates to a kind of terminal signaling screening arrangement and method, decontrol and method, management system.
Background technology
Along with the high speed development of mobile communication technology, the terminals such as mobile phone are convenient, fast with it, be not popular with the masses of users by many advantages such as time and place restrictions, its number of users constantly increases, and becomes one of people's daily life and instrument indispensable in working gradually.Day by day popularize at mobile phone and bring simultaneously incomparably easily, also should see, along with the unrestrictedly use of mobile phone, the noise pollution of mobile phone manufacture also becomes more and more serious.Such as, in public places such as meeting room, court, arenas, library, hospital, academic hall, classrooms, due to the random use of mobile phone, affect and disturb normally carrying out of some activity.At the Code in Hazardous Special Locations of some special industry, as units such as petrochemical industries, the situation causing disaster due to Misuse mobile phone also occurs again and again.In addition, the instant communication function of mobile phone a kind of instrument of also making it become to divulge a secret.
For this reason, in the place that these are special, often need that restriction is carried out to mobile phone and use.A kind of normally used method makes mobile phone normally cannot log in mobile network for adopting cellular phone signal shielding device to launch interference signal, uses its communication function to be restricted.For this kind of mode, can well the use of limiting handset, but, need to ensure that the interference range of mobile phone shielding device meets the requirement of restriction.Because be carry out limiting handset by the mode of signal disturbing to use, the region that the interference signal of single mobile phone shielding device can relate to is less, if desired restriction uses the regional extent of mobile phone excessive, and so then need the quantity increasing mobile phone shielding device, this can increase use cost undoubtedly.
Summary of the invention
The application provides a kind of terminal signaling screening arrangement and method, decontrol and method, management system, can solve shielding device shield ranges little, the problem that use cost is high.
In order to solve the problem, this application discloses a kind of terminal signaling screen method, comprising the following steps:
The integrated circuit card identification code of reading terminals SIM card, search the information whether recording described terminal in database, if have, then carry out next step, otherwise, then read the international mobile subscriber identity of described terminal SIM card, and record described integrated circuit card identification code and international mobile subscriber identity, as the information of described terminal, and carry out next step;
Send up-to-date instruction to described SIM card, empty the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card;
Send instruction of restarting to described SIM card, restart described terminal.
Further, described SIM card supports received RF signal;
The integrated circuit card identification code of described reading terminals SIM card adopts radio-frequency card reader to read;
The international mobile subscriber identity of described reading terminals SIM card adopts radio-frequency card reader to read.
Further, search the information whether recording described terminal in database described in comprise:
Described integrated circuit card identification code is carried out matched and searched in a database as querying condition, if can mate, then has the information of described terminal in database of descriptions, otherwise, then illustrate and do not have.
Further, also comprise after emptying the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card described in:
Suspension mark is carried out to described terminal, and described suspension mark is added in the information of described terminal.
Further, described method also comprises:
Record the user profile of described terminal, and with the information association of described terminal.
Disclosed herein as well is a kind of terminal signaling shielding release method, comprise the following steps:
The integrated circuit card identification code of reading terminals SIM card.
Search the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database.
Send file update instruction to described SIM card, described international mobile subscriber identity is write in the international mobile subscriber identifier file of described SIM card.
Send instruction of restarting to described SIM card, restart described terminal
Further, described SIM card supports received RF signal; The integrated circuit card identification code of described reading terminals SIM card adopts radio-frequency card reader to read.
Disclosed herein as well is a kind of terminal signaling screening arrangement, comprising:
Information reading module, for integrated circuit card identification code and the international mobile subscriber identity of reading terminals SIM card;
Search module, for searching the information whether recording described terminal in database;
Instruction sending module, for sending instruction to SIM card, described instruction comprises: for emptying the up-to-date instruction of the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card and the instruction of restarting for restarting described terminal.
Further, described terminal signaling screening arrangement is radio-frequency card reader, and described SIM card comprises radio frequency chip.
Disclosed herein as well is a kind of terminal signaling shielding decontrol, comprising:
Information reading module, for the integrated circuit card identification code of reading terminals SIM card;
Search module, for searching the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database;
Instruction sending module, for sending instruction to SIM card, described instruction comprises: for described international mobile subscriber identity being write the up-to-date instruction in the international mobile subscriber identifier file of described SIM card and being used for restarting the instruction of restarting of described terminal.
Further, described terminal signaling shielding decontrol is radio-frequency card reader, and described SIM card comprises radio frequency chip.
Disclosed herein as well is a kind of terminal signaling management system, comprise foregoing terminal signaling screening arrangement, shielding decontrol and database, database is for recording the information of described terminal signaling screening arrangement and terminal signaling shielding decontrol, and described information at least comprises integrated circuit card identification code and the international mobile subscriber identity of terminal.
Compared with prior art, the application comprises following advantage:
The mode that international mobile subscriber identity in SIM card empties is realized signal shielding to terminal by adopting by the terminal signaling screening arrangement of the application and method, terminal signaling shielding decontrol and method, terminal signaling management system, as long as after international mobile subscriber identity is cleared, just cannot realizes mobile network and connect.The coverage of this kind of mode to screening arrangement does not limit, and therefore can reduce use cost, has good signal shielding effect simultaneously.
Secondly, by this kind of mode, the relevant information of terminal use can also be recorded, thus make screening arrangement have other functions, thus substitute the device realizing other functions, good expanded application can be obtained, the cost of other equipment of configuration can be reduced simultaneously.
In addition, realize terminal signaling shielding by radio-frequency technique or remove, only needing to increase radio-frequency card reader and just can realize, simple, and cost is lower.
Accompanying drawing explanation
Fig. 1 is the flow chart of the terminal signaling screen method embodiment one of the application;
Fig. 2 is the flow chart of the terminal signaling screen method embodiment two of the application;
Fig. 3 is the flow chart of the terminal signaling screen method embodiment three of the application;
Fig. 4 is the flow chart of the terminal signaling shielding release method embodiment one of the application;
Fig. 5 is the structural representation of the terminal signaling screening arrangement embodiment one of the application;
Fig. 6 is the structural representation of the terminal signaling shielding decontrol embodiment one of the application.
Fig. 7 is the structural representation of the terminal signaling management system embodiment one of the application.
Embodiment
For enabling above-mentioned purpose, the feature and advantage of the application more become apparent, below in conjunction with the drawings and specific embodiments, the application is described in further detail.
With reference to Fig. 1, a kind of terminal signaling screen method embodiment one of the application is shown, comprises the following steps:
Step 101, the integrated circuit card identification code (ICCID) of reading terminals SIM card, searches the information whether recording described terminal in database, if having, then carry out step 103, otherwise, then carry out step 102.
Terminal can be the device that mobile phone, panel computer etc. can install SIM card.Integrated circuit card identification code (ICCID in terminal SIM card, Integrate circuit card identity) for uniquely identifying this SIM card and there is the terminal of this SIM card, be recorded in the unique identifier file (2FE2) of SIM card, find this unique identifier file, just can therefrom read integrated circuit card identification code.
The integrated circuit card identification code of reading terminals SIM card can by can the card reader of reading SIM card information realize.Card reader can be contact card reader, such as, connected etc. by data wire, also can be Non-contact Media Reader, such as radio-frequency card reader.In order to improve treatment effeciency, the application preferably adopts Non-contact Media Reader.When adopting radio-frequency card reader, SIM card needs to support received RF signal, and namely SIM cards of mobile phones has two interface function, supports contact and non-contact function, non-contact function received RF signal wherein simultaneously.
When reading integrated circuit card identification code, then can carry out matched and searched using this integrated circuit card identification code in a database as querying condition, if can find, then have the information of described terminal in database of descriptions, if no, then there is no the information of described terminal in database of descriptions.
Wherein the information of terminal at least comprises integrated circuit card identification code and international mobile subscriber identity, and other information can be added as required, such as, and the user profile, current state etc. of terminal.
Step 102, reads the international mobile subscriber identity (IMSI) of described terminal SIM card, and records described integrated circuit card identification code and international mobile subscriber identity, as the information of described terminal.
When there is no the information of terminal in database, then illustrate that the terminal with this SIM card is for carry out signal shielding operation for the first time, now, needs to carry out information initializing, namely records its essential information, so that follow-up use.
Step 103, sends up-to-date instruction to described SIM card, empties the international mobile subscriber identity (IMSI) in the international mobile subscriber identifier file of SIM card.
International mobile subscriber identity (IMSI, International Mobile SubscriberIdentification Number) is stored in SIM card, the mark of difference terminal use.If international mobile subscriber identity is cleared, then terminal use cannot connect mobile network by this SIM card, also cannot realize mobile communication.
Step 104, sends instruction of restarting to described SIM card, restarts described terminal.
GSM11.14 instruction is sent to SIM card, informs that its file configuration changes, restart this terminal.After restarting, because international mobile subscriber identity is cleared, therefore, terminal cannot use this SIM card to be connected to mobile network, thus also cannot realize mobile communication, therefore can realize the shielding of effective terminal signaling.
With reference to Fig. 2, the terminal signaling screen method embodiment two of the application is shown, after the step 103 of embodiment one, can also comprises the following steps:
Step 201, carries out suspension mark to described terminal, and is added in the information of described terminal by described suspension mark.
For the ease of follow-up management and maintenance, after emptying international mobile subscriber identity, suspension information can be increased in end message, thus represent that this terminal processes suspension state at present.Suspension mark can be to represent that terminal is in any numeral of suspension state, word or pictorial symbolization.
With reference to Fig. 3, the terminal signaling screen method embodiment three of the application is shown, on the basis of embodiment one and/or two, further comprising the steps of:
Step 301, records the user profile of described terminal, and with the information association of described terminal.
When needs manage terminal use, can also user profile be collected, such as address name, unit, position etc., and be associated with terminal.By adding users information, can real-time query to the terminal current state of each user.In addition, expanded application can also be carried out based on this.Such as, in certain unit, SIM card card reader can be used to carry out work attendance.When user card punching carries out terminal signaling shielding, system can record charge time, thus as work attendance foundation.Adopting this kind of mode, without the need to arranging separately attendance record device, thus the cost of unit can be reduced.
Be appreciated that and can also other information of typing to carry out expanded application, thus increase and realize the scope of application of the system of the terminal signaling screen method of the application as required, reduce the cost of other equipment of configuration.Abovementioned steps 301 can be carried out with each step of embodiment one or two simultaneously, also can before or after each step, and the application does not limit this.
With reference to Fig. 4, the terminal signaling shielding release method embodiment one of the application is shown, comprises:
Step 401, the integrated circuit card identification code of reading terminals SIM card.
Step 402, searches the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database.
Step 403, sends file update instruction to described SIM card, is write by described international mobile subscriber identity in the international mobile subscriber identifier file of described SIM card.
Step 404, sends instruction of restarting to described SIM card, restarts described terminal.
Because international mobile subscriber identity is re-write in the international mobile subscriber identifier file of SIM card, after terminal restarts, then can be connected to mobile network by SIM card, thus relieve signal shielding.
Be appreciated that in the present embodiment, the information that contact card reader is come in reading terminals SIM card can be adopted, also can adopt Non-contact Media Reader to read.Preferably, adopt radio-frequency card reader, correspondingly, SIM card needs to support received RF signal.Whether, when utilizing radio-frequency technique to realize the reading of information, terminal can be in start or off-mode, because received RF information and terminal can start shooting or shut down irrelevant in SIM card.Therefore, in the terminal signaling shielding release method embodiment of the application, even if terminal is in off-mode, the write of information also can be carried out, thus ring off signal shielding.Shutdown is in for terminal, sends instruction of restarting to described SIM card, the result of failure may be returned, but, when user reopens terminal, because international mobile subscriber identity re-writes, so normally mobile network can be connected to.
With reference to Fig. 5, the terminal signaling screening arrangement of the application is shown, comprises information reading module 51, search module 53 and instruction sending module 55.
Information reading module 51, for integrated circuit card identification code and the international mobile subscriber identity of reading terminals SIM card.Wherein, information reading module 10 can read when terminal shields first for the reading of international mobile subscriber identity, when after the relevant information recording this terminal SIM card in database, follow-up when again this terminal signaling being shielded, then can only read integrated circuit card identification code.When specific implementation, can first read integrated circuit card identification code, then triggering lookup module 53 is searched, if this integrated circuit card identification code can be found in a database, then declare record has the information of terminal, now, then without the need to reading international mobile subscriber identity again.If do not find, information reading module 51 can read international mobile subscriber identity again.
Search module 53, for searching the information whether recording described terminal in database.
Instruction sending module 55, for sending instruction to SIM card, described instruction comprises for emptying the up-to-date instruction of the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card and the instruction of restarting for restarting described terminal.The concrete instruction wherein sent, the real-time status current according to terminal signaling screening arrangement and internal control chip are determined.
Being appreciated that terminal signaling screening arrangement is card reader, can be contact card reader, also can be Non-contact Media Reader.Preferably, terminal signaling screening arrangement is contactless radio-frequency card reader, and described SIM card comprises radio frequency chip.When realizing shielding, can be placed in the range of signal of radio-frequency card reader by terminal, so radio-frequency card reader just can carry out the reading of information.
With reference to Fig. 6, the terminal signaling shielding decontrol of the application is shown, comprises: information reading module 61, search module 63 and instruction sending module 65.
Information reading module 61, for the integrated circuit card identification code of reading terminals SIM card.
Search module 63, for searching the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database.
Instruction sending module 65, for sending instruction to SIM card, described instruction comprises: for described international mobile subscriber identity being write the up-to-date instruction in the international mobile subscriber identifier file of described SIM card and being used for restarting the instruction of restarting of described terminal.The concrete instruction wherein sent, the real-time status current according to terminal signaling shielding decontrol and internal control chip are determined.
Preferably, terminal signaling shielding decontrol is radio-frequency card reader, and described SIM card comprises radio frequency chip.
Be appreciated that terminal signaling screening arrangement and terminal signaling shielding decontrol can adopt identical structure on the hardware of specific implementation, realize shielding or removing function respectively by the control logic of change control chip.Be appreciated that in actual process, if the two adopts same structure, can be distinguished the two, in order to avoid obscure by other signs.Such as, adopt different colors respectively or add label etc.
With reference to Fig. 7, the terminal signaling management system embodiment of the application is shown, comprises database, as the terminal signaling screening arrangement in previous embodiment and terminal signaling shielding decontrol.Wherein, in database for record described terminal signaling screening arrangement and terminal signaling shielding decontrol information.This information at least comprises integrated circuit card identification code and the international mobile subscriber identity of terminal.Be appreciated that it can also is other desired information, such as information of terminal user etc.
The mode that international mobile subscriber identity in SIM card empties is realized signal shielding to terminal by adopting by the terminal signaling screening arrangement of the application and method, decontrol and method, management system, as long as after international mobile subscriber identity is cleared, just cannot realizes mobile network and connect.The coverage of this kind of mode to screening arrangement does not limit, and therefore can reduce use cost, has good signal shielding effect simultaneously.
Secondly, by this kind of mode, the relevant information of terminal use can also be recorded, thus make screening arrangement have other functions, thus substitute the device realizing other functions, good expanded application can be obtained, the cost of other equipment of configuration can be reduced simultaneously.
In addition, realize terminal signaling shielding by radio-frequency technique or remove, only needing to increase radio-frequency card reader and just can realize, simple, and cost is lower.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For system embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
The terminal signaling screening arrangement provided the application above and method, decontrol and method, management system are described in detail, apply specific case herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (12)
1. a terminal signaling screen method, is characterized in that, comprises the following steps:
The integrated circuit card identification code of reading terminals SIM card, searches the information whether recording described terminal in database, and wherein, the information of described terminal comprises: integrated circuit card identification code and international mobile subscriber identity;
If have, then carry out next step, otherwise, then read the international mobile subscriber identity of described terminal SIM card, and record described integrated circuit card identification code and international mobile subscriber identity, as the information of described terminal, and carry out next step;
Send up-to-date instruction to described SIM card, empty the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card;
Send instruction of restarting to described SIM card, restart described terminal.
2. terminal signaling screen method as claimed in claim 1, is characterized in that, described SIM card supports received RF signal;
The integrated circuit card identification code of described reading terminals SIM card adopts radio-frequency card reader to read;
The international mobile subscriber identity of described reading terminals SIM card adopts radio-frequency card reader to read.
3. terminal signaling screen method as claimed in claim 1 or 2, is characterized in that, described in search the information whether recording described terminal in database and comprise:
Described integrated circuit card identification code is carried out matched and searched in a database as querying condition, if can mate, then has the information of described terminal in database of descriptions, otherwise, then illustrate and do not have.
4. terminal signaling screen method as claimed in claim 1 or 2, is characterized in that, described in empty in the international mobile subscriber identifier file of SIM card international mobile subscriber identity after also comprise:
Suspension mark is carried out to described terminal, and described suspension mark is added in the information of described terminal.
5. terminal signaling screen method as claimed in claim 1 or 2, it is characterized in that, described method also comprises:
Record the user profile of described terminal, and with the information association of described terminal.
6. a terminal signaling shielding release method, is characterized in that, comprise the following steps:
The integrated circuit card identification code of reading terminals SIM card;
Search the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database; Wherein, record the information of described terminal in described database, the information of described terminal comprises: integrated circuit card identification code and international mobile subscriber identity;
Send file update instruction to described SIM card, described international mobile subscriber identity is write in the international mobile subscriber identifier file of described SIM card;
Send instruction of restarting to described SIM card, restart described terminal.
7. terminal signaling shielding release method as claimed in claim 6, it is characterized in that, described SIM card supports received RF signal; The integrated circuit card identification code of described reading terminals SIM card adopts radio-frequency card reader to read.
8. a terminal signaling screening arrangement, is characterized in that, comprising:
Information reading module, for integrated circuit card identification code and the international mobile subscriber identity of reading terminals SIM card;
Search module, for searching the information whether recording described terminal in database; Wherein, the information of described terminal comprises: integrated circuit card identification code and international mobile subscriber identity;
Instruction sending module, for sending instruction to SIM card, described instruction comprises: for emptying the up-to-date instruction of the international mobile subscriber identity in the international mobile subscriber identifier file of SIM card and the instruction of restarting for restarting described terminal.
9. terminal signaling screening arrangement as claimed in claim 8, it is characterized in that, described terminal signaling screening arrangement is radio-frequency card reader, and described SIM card comprises radio frequency chip.
10. a terminal signaling shielding decontrol, is characterized in that, comprising:
Information reading module, for the integrated circuit card identification code of reading terminals SIM card;
Search module, for searching the international mobile subscriber identity corresponding with described integrated circuit card identification code in a database; Wherein, record the information of described terminal in described database, the information of described terminal comprises: integrated circuit card identification code and international mobile subscriber identity;
Instruction sending module, for sending instruction to SIM card, described instruction comprises: for described international mobile subscriber identity being write the up-to-date instruction in the international mobile subscriber identifier file of described SIM card and being used for restarting the instruction of restarting of described terminal.
11. terminal signaling shielding decontrols as claimed in claim 10, is characterized in that, described terminal signaling shielding decontrol is radio-frequency card reader, and described SIM card comprises radio frequency chip.
12. 1 kinds of terminal signaling management systems, is characterized in that, comprising:
Terminal signaling screening arrangement as claimed in claim 8 or 9;
Terminal signaling shielding decontrol as described in claim 10 or 11; With
Database, for recording the information of described terminal signaling screening arrangement and terminal signaling shielding decontrol, described information at least comprises integrated circuit card identification code and the international mobile subscriber identity of terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291617.4A CN102868992B (en) | 2012-08-15 | 2012-08-15 | Device and method for shielding terminal signal, device and method for removing shielding of terminal signal, and terminal signal management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291617.4A CN102868992B (en) | 2012-08-15 | 2012-08-15 | Device and method for shielding terminal signal, device and method for removing shielding of terminal signal, and terminal signal management system |
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| CN102868992A CN102868992A (en) | 2013-01-09 |
| CN102868992B true CN102868992B (en) | 2015-05-27 |
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| CN103167485B (en) * | 2013-03-19 | 2015-11-18 | 厦门市美亚柏科信息股份有限公司 | A kind of method, Apparatus and system gathering mobile terminal data |
| CN103716462A (en) * | 2013-12-20 | 2014-04-09 | 深圳中科讯联科技有限公司 | Method for controlling mobile terminal communication in special area |
| CN104581844A (en) * | 2014-11-14 | 2015-04-29 | 中国电子科技集团公司第三十研究所 | A Communication Shielding Gating Method Based on Redirection Mechanism |
| CN111817815A (en) * | 2020-06-24 | 2020-10-23 | 深圳市联合泰科科技有限公司 | An indoor signal distributed management system, method, medium and device |
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| CN101547437A (en) * | 2009-04-30 | 2009-09-30 | 东信和平智能卡股份有限公司 | A telecom intelligent card, an air card writing system and an air card writing method |
| CN102318383A (en) * | 2009-02-13 | 2012-01-11 | 捷德3S股份公司 | Method for deactivating and possibly reactivating sim cards |
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| WO2009053918A2 (en) * | 2007-10-25 | 2009-04-30 | Cell C (Proprietary) Limited | Method and system for on demand provisioning in a mobile communication network |
| ES2898304T3 (en) * | 2010-06-12 | 2022-03-07 | Huawei Device Co Ltd | Method, apparatus and system to support multiple IMSI |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318383A (en) * | 2009-02-13 | 2012-01-11 | 捷德3S股份公司 | Method for deactivating and possibly reactivating sim cards |
| CN101547437A (en) * | 2009-04-30 | 2009-09-30 | 东信和平智能卡股份有限公司 | A telecom intelligent card, an air card writing system and an air card writing method |
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