CN104411021A - Dual-IMSI automatic switching method and system for realizing global roaming - Google Patents
Dual-IMSI automatic switching method and system for realizing global roaming Download PDFInfo
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- CN104411021A CN104411021A CN201410717804.3A CN201410717804A CN104411021A CN 104411021 A CN104411021 A CN 104411021A CN 201410717804 A CN201410717804 A CN 201410717804A CN 104411021 A CN104411021 A CN 104411021A
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- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 34
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- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention discloses a dual-IMSI (International Mobile Subscriber Identity) automatic switching method and system for realizing global roaming. The method comprises the following step: after a mobile phone terminal is started and stable, detecting the network state of a current IMSI, in a current position, of an SIM (subscriber identity module) card in the mobile phone terminal and obtaining current position information of the mobile phone terminal; when the detected network state of the current IMSI, in the current position, of the SIM card is changed and needs to be switched, switching the current IMSI of the SIM card to another IMSI for logging in a network having a roaming communication protocol with the IMSI; restarting the mobile phone terminal for bringing the IMSI switching to operation. According to the method provided by the invention, the IMSI switching can be efficiently, quickly and accurately carried out according to the network state of the current IMSI of the SIM card and the position of the mobile phone terminal under the circumstance that the SIM card is not changed.
Description
Technical field
The present invention relates to mobile communication technology field, be specifically related to a kind of two IMSI automatic switching method and the system that realize global roaming.
Background technology
When mobilephone terminal user is from a region to another region, the such as country from a country to another one, SIM card current I MSI (International Mobile SubscriberIdentification Number in mobile phone terminal, international mobile subscriber identity) may failure be logged in another one country, now mobile phone terminal cannot realize communication function.
At present, the major way addressed this problem is the mobile network that SIM (SubscriberIdentity Module, the client identification module) card changed in mobile phone terminal visits external operator.Adopt the mode changing SIM card, mobilephone terminal user needs again to apply for card, change card and the number of changing, and process is numerous and diverse, and needs the extra communication cost spending user.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of two IMSI automatic switching method and the system that realize global roaming, can realize switching rapidly and accurately between IMSI.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
According to one aspect of the present invention, provide a kind of two IMSI automatic switching methods realizing global roaming, comprising:
After mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information;
When described detection SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI;
Restart described mobile phone terminal, the switching of IMSI is come into force.
According to another aspect of the present invention, provide a kind of two IMSI automatic switchover systems realizing global roaming, comprising:
Network state detecting module, for after mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information;
Handover module, for when described detection SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI;
Restarting module, for restarting described mobile phone terminal, the switching of IMSI being come into force.
A kind of two IMSI automatic switching method and system realizing global roaming provided by the invention, the network state of SIM card current I MSI in mobile phone terminal current position in detection mobile phone terminal, when SIM card current I MSI changes in the network state of current position, carry out the switching of IMSI, when not changing SIM card, the switching of IMSI can be carried out rapidly and accurately, ensure mobile phone terminal proper communication in the world.
Accompanying drawing explanation
Fig. 1 is a kind of two IMSI automatic switching method flow charts realizing global roaming of the embodiment of the present invention one;
Fig. 2 is a kind of whole FB(flow block) of two IMSI automatic switching methods realizing global roaming of the embodiment of the present invention one;
Fig. 3 is that a kind of of the embodiment of the present invention one realizes mobile phone terminal opening schematic flow sheet in two IMSI automatic switching methods of global roaming;
Fig. 4 is that a kind of of the embodiment of the present invention one realizes network state detection schematic flow sheet in two IMSI automatic switching methods of global roaming;
Fig. 5 is a kind of two IMSI automatic switchover system schematic diagrames realizing global roaming of the embodiment of the present invention two.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment one, a kind of two IMSI automatic switching methods realizing global roaming.Below in conjunction with Fig. 1-Fig. 4, the method that the present embodiment provides is described in detail.
See Fig. 1 and Fig. 2, wherein, in Fig. 1, S101, after mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information.
Concrete, when mobilephone terminal user is from a region to another one region, such as, after arriving the U.S. from China, mobile phone terminal enters starting procedure.See Fig. 3, the detailed process that mobile phone terminal enters starting procedure is, mobile phone terminal sends Terminal Profile instruction and enters starting procedure to make mobile phone terminal, now SIM card is set up menu item and is performed Set up menu instruction, and set Poll Interval polling interval, through a Poll Interval polling interval, SIM card will receive a status instruction, and using the polling interval of predetermined number as the mobile phone terminal opening make-up time.In the present embodiment, why arranging the start make-up time of mobile phone terminal, is in order to network after making mobile phone terminal opening reaches stable state, to ensure the stability of follow-up mobile phone terminal network state.In addition, in the present embodiment, in order to make accurate timing, simultaneously based on the experience of testing mobile phone terminal transparency, Poll Interval polling interval is set and is preferably 30S, certainly, the present embodiment is not particularly limited poll-interval, can ensure the stable of network state after mobile phone terminal opening is followed in poll-interval and the setting as the polling interval number of start compensation.
After mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information.Obtain in the process of mobile phone terminal current location information concrete, SIM (Subscriber Identity Module in mobile phone terminal, client identification module, also referred to as smart card) block to mobile phone terminal transmission provide local information instruction, namely SIM card sends the instruction obtaining mobile phone terminal current location information to mobile phone terminal, after mobile phone terminal receives the acquisition current location instruction of SIM card transmission, obtain the current location information of mobile phone terminal, and the current location information of the mobile phone terminal of acquisition is returned to SIM card.In the present embodiment, when mobile phone terminal enters starting procedure, mobile phone terminal opening through setting compensates, after mobile phone terminal is stable, SIM card sends provide local information instruction to mobile phone terminal, and mobile phone terminal obtains the current location information at mobile phone terminal place after receiving instruction.While the current on-site current location information of acquisition mobile phone terminal, see Fig. 4, the present embodiment detects in the network state of current location SIM card current I MSI in mobile phone terminal, and SIM card current I MSI can net successfully for stepping in the network state of current location, it is limited or without service three kinds of states to step on net.Wherein, the current network state of SIM card current I MSI in mobile phone terminal can be obtained in several ways, such as, PLMN (Public Land Mobile Network can be passed through, public land mobile network) relevant information such as MCC (mobile country code, Mobile Country Code MCC) in interactive information or according to preset file EF
fPLMNrenewal be used as the judgement of whether successful log current network.In the present embodiment, SIM card is after the status instruction receiving setting number, periodic triggers provide local information instruction, and receive the response message of mobile phone terminal, wherein, the response message of mobile phone terminal comprises the network state of SIM card current I MSI in current location, and namely for stepping on, SIM card current I MSI nets that successfully still to step on net limited or without service in the network state of current location.In addition, in the response message of mobile phone terminal, also comprise the residing country of SIM card current I MSI, i.e. the MCC code (mobilecountry code, Mobile Country Code MCC) of the residing country of SIM card current I MSI.
In the present embodiment, in order to judge stable network state, take the detection in the given time SIM card current I MSI being carried out to pre-determined number in the network state of current location, the SIM card current I MSI detected when pre-determined number in the given time current location network state homogeneous phase simultaneously, determine the network state of this SIM card current I MSI in current location.Such as, if the mobile phone terminal current location information that the SIM card in mobile phone terminal is carried in the double Provide Local Information received and network state homogeneous phase are simultaneously, if the mobile phone terminal current location information in the Article 3 Provide Local Information that SIM card receives and network state with front twice consistent time, then SIM card thinks that current network state is stable state, and determines that SIM card is limited or without service for stepping on net success or stepping on net in the network state of current location.Wherein, the time interval of detection network state can adjust as required within the predetermined time, and also namely the number of times of detection network state also can adjust as the case may be within the predetermined time.In a word, SIM card current I MSI in mobile phone terminal all can be set in the time interval that the network state of current location detects and number of times in the requirement when SIM card is dispatched from the factory according to operator, do not do specific restriction at this.
In addition, it should be noted that, repeatedly to detect in mobile phone terminal SIM card current I MSI within the predetermined time in the process of the network state of current location, if detect in network state identical several times continuously and occurred different network states once in a while, such as, if the mobile phone terminal current location information that the SIM card in mobile phone terminal is carried in the double Provide Local Information received and network state homogeneous phase are simultaneously, if the network state in the Article 3 Provide LocalInformation that SIM card receives changes, and mobile phone current location information in the Article 4 Provide LocalInformation received and network state with front twice all consistent time, then SIM card thinks that Article 3 is abnormal conditions, the current IMSI of SIM card is also stable state in the network state of current location.Also be, the different network state occurred once in a while in repeatedly network detection is considered as burr, do not affect and determine correct network state, avoid the erroneous judgement causing network state, and then the undying switching that may cause when mobile phone terminal returns abnormal network state or the problem extended switching time can be solved, ensure that the accuracy that follow-up IMSI switches.
S102, when SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI.
Concrete, above-mentioned steps S101 detects in the network state of current location the SIM card current I MSI in mobile phone terminal incessantly, when finding that SIM card current I MSI changes in the network state of current location and meets switching condition, switch the IMSI that SIM card is current.Such as, SIM card current I MSI in mobile phone terminal is in other position always and steps on the successful network state of net, and be in current location and step on the limited network state of net, need the switch mobile phone terminal current I MSI just possible proper communication that can realize mobile phone terminal this time.Wherein, SIM card current I MSI is switched to another IMSI in SIM card to go to log in the network having roaming communication agreement with this IMSI.Such as, when mobile phone terminal enters the U.S. from China, the currently used IMSI of SIM card in mobile phone terminal can not log in the network of the U.S., current IMSI can be switched to the network that another IMSI goes to attempt logging in the U.S. by-SIM card, and switch after IMSI and U.S. mobile networks have roaming communication agreement, the network of the IMSI successful log U.S. movement after then switching, make mobile phone terminal also can realize proper communication in the U.S., and the SIM card of U.S.'s movement need not be changed, save the communication cost of user, also for user eliminates many troubles.
In addition, the present embodiment repeatedly switches the mobile phone terminal loss caused in order to avoid mobile phone terminal in certain specific situation, switching times under particular case is limited, the threshold number switched between the SIM card current I MSI namely in setting mobile phone terminal and another IMSI.Such as, limit HomeIMSI and Roam IMSI log in the number of times by switching in limited time can not more than 5 times.During specific implementation, for the switching between two IMSI, can record switching times between the two, the number of times switched between the two if current exceedes threshold number, then do not switch.In addition, the present embodiment has taken into full account the problem preventing from by mistake switching, when determining the SIM card current I MSI needs switching in mobile phone terminal under special circumstances, can wait for a period of time and switch again, such as when first can wait for a period of time determine no signal when the ownership place country no signal of IMSI, just carry out the switching of IMSI, avoid the mistake caused because of particular surroundings network service poor signal to switch.
It should be noted that, relating to the efficient application process switching IMSI in the present embodiment is preset in SIM card, preset different parameter can be required, such as Home IMSI and Roam IMSI, sms center of preferred list of countries, Home and Roam number etc. according to the difference of operator.The present embodiment is not limited to the switching between two IMSI, is also applicable to the switching between Multi-IMSI.
S103, restart mobile phone terminal, the switching of IMSI is come into force.
Concrete, when determining the current IMSI of the SIM card in mobile phone terminal and really needing to switch, SIM card current I MSI is switched to another IMSI in SIM card and go to attempt logging in local network.SIM card in this time mobile phone terminal can send restart indication to mobile phone terminal, such as SIM card sending mode is the refresh instruction of " 00 ", namely SIM card sends soft reboot instruction to mobile phone terminal, to make mobile phone terminal reenter starting procedure, and then the switching of IMSI is come into force; If determine not need to switch, SIM card does not send restart indication to mobile phone terminal, then smart card keeps former IMSI state, does not switch.
In addition, the SIM card in mobile phone terminal sends refresh instruction to mobile phone terminal and carries out needing the file upgraded in GSM11.11 when IMSI automatically switches, and wherein, needs the file upgraded to have EF
iMSI, EF
aCC, EF
sPN, EF
lOCI, EF
fPLMNand EF
sMSPdeng.
Embodiment two, a kind of two IMSI automatic switchover systems realizing global roaming.Below in conjunction with Fig. 5, the system that the present embodiment provides is described in detail.
In Fig. 5, the system that the present embodiment provides comprises network state detecting module 501, network state determination module 502, switching times setting module 503, handover module 504 and restarts module 505.
Wherein, network state detecting module 501 is mainly used in after mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information.Concrete, when mobilephone terminal user is from a region to another one region, such as, after arriving the U.S. from China, mobile phone terminal enters starting procedure.The detailed process that mobile phone terminal enters starting procedure is, mobile phone terminal sends Terminal Profile instruction and enters starting procedure to make mobile phone terminal, now SIM card is set up menu item and is performed Setupmenu instruction, and set Poll Interval polling interval, through a Poll Interval polling interval, SIM card will receive a status instruction, and using the polling interval of predetermined number as the mobile phone terminal opening make-up time.In the present embodiment, why arranging the start make-up time of mobile phone terminal, is in order to network after making mobile phone terminal opening reaches stable state, to ensure the stability of follow-up mobile phone terminal network state.In addition, in the present embodiment, in order to make accurate timing, simultaneously based on the experience of testing mobile phone terminal transparency, Poll Interval polling interval is set and is preferably 30S, certainly, the present embodiment is not particularly limited poll-interval, can ensure the stable of network state after mobile phone terminal opening is followed in poll-interval and the setting as the polling interval number of start compensation.
After mobile phone terminal opening is stable, network state detecting module 501 detects SIM card current I MSI in mobile phone terminal in the network state of current location and obtains mobile phone terminal current location information.In the process of specific implementation, the SIM card current I MSI that network state determination module 502 is mainly used in detecting when network state detecting module 501 pre-determined number in the given time, when the network state of current location is identical, determines the network state of this SIM card current I MSI in current location.
In the present embodiment, in order to judge stable network state, network state detecting module 501 takes the detection in the given time SIM card current I MSI being carried out to pre-determined number in the network state of current location, the SIM card current I MSI detected when pre-determined number in the given time current location network state homogeneous phase simultaneously, network state determination module 502 determines the network state of this SIM card current I MSI in current location.Wherein, the time interval of detection network state can adjust as required within the predetermined time, and also namely the number of times of detection network state also can adjust as the case may be within the predetermined time.In a word, SIM card current I MSI in mobile phone terminal all can be set in the time interval that the network state of current location detects and number of times in the requirement when SIM card is dispatched from the factory according to operator, do not do specific restriction at this.
In addition, it should be noted that, network state detecting module 501 repeatedly to detect in mobile phone terminal SIM card current I MSI within the predetermined time in the process of the network state of current location, if detect in network state identical several times continuously and occurred different network states once in a while, such as, if the mobile phone terminal current location information that the SIM card in mobile phone terminal is carried in the double Provide Local Information received and network state homogeneous phase are simultaneously, if the network state in the Article 3 Provide Local Information that SIM card receives changes, and mobile phone current location information in the Article 4 Provide Local Information received and network state with front twice all consistent time, then SIM card thinks that Article 3 is abnormal conditions, the current IMSI of SIM card is also stable state in the network state of current location.Also be, the different network state occurred once in a while in repeatedly network detection is considered as burr, do not affect and determine correct network state, avoid the erroneous judgement causing network state, and then the undying switching that may cause when mobile phone terminal returns abnormal network state or the problem extended switching time can be solved, ensure that the accuracy that follow-up IMSI switches.
Switching times setting module 503 is mainly used in setting the threshold number switched between SIM card current I MSI and another IMSI in mobile phone terminal.
Handover module 504 be mainly used in when SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI.
Concrete, network state detecting module 501 detects in the network state of current location the SIM card current I MSI in mobile phone terminal incessantly, when finding that SIM card current I MSI meets switching condition in the network state of current location, handover module 505 switches another IMSI in SIM card current IMSI to SIM card.Such as, SIM card current I MSI in mobile phone terminal is in other position always and steps on the successful network state of net, and be in current location and step on the limited network state of net, in this time handover module 504 switch mobile phone terminal, SIM card current I MSI just may realize the proper communication of mobile phone terminal.Wherein, SIM card current I MSI can be switched to another IMSI in SIM card and remove to attempt to log in the local network having roaming communication agreement with this IMSI by handover module 505.
It should be noted that, the present embodiment repeatedly switches the mobile phone terminal loss caused in order to avoid mobile phone terminal in certain specific situation, switching times under switching times setting module 503 pairs of particular cases limits, the threshold number switched between the SIM card current I MSI namely in setting mobile phone terminal and another IMSI.During specific implementation, for the switching between two IMSI, switching times between the two can be recorded, if the number of times switched between the first two IMSI exceedes threshold number, then not switch.In addition, the present embodiment has taken into full account the problem preventing from by mistake switching, when determining that the SIM card current I MSI in mobile phone terminal needs to switch, can wait for a period of time and switch again, such as the switching determining to need just to carry out IMSI when switching of first waiting for a period of time when the ownership place country no signal of IMSI, avoid the mistake caused because of particular surroundings network service poor signal to switch.
Restart module 505 to be mainly used in restarting mobile phone terminal, the switching of IMSI is come into force.
Concrete, when determining the current IMSI of the SIM card in mobile phone terminal and really needing to switch, SIM card current I MSI can be switched to another IMSI by handover module 504.After restarting owing to only having mobile phone terminal, the IMSI ability handover success of SIM card, namely switch and come into force, therefore the SIM card in mobile phone terminal in this time can send restart indication to mobile phone terminal, such as SIM card sending mode is the refresh instruction of " 00 ", and namely SIM card sends soft start instruction to mobile phone terminal, restarts after module 505 receives the soft start instruction that SIM sends in mobile phone terminal, reenter starting procedure, and then the switching of IMSI is come into force; If do not need to switch, SIM card does not send restart indication to mobile phone terminal, then mobile phone terminal does not perform reset command, and smart card also can keep former IMSI state, does not switch, and continues detection network state.
A kind of two IMSI automatic switching method and system realizing global roaming provided by the invention, determine that IMSI in SIM card is the need of switching according to SIM card current I MSI in mobile phone terminal in the network state of mobile phone terminal current location, can realizing when not changing SIM card, also can realize the proper communication of SIM card in the whole world; In the SIM card of detection mobile phone terminal current I MSI network state before, the start make-up time of mobile phone terminal is set, detects again after guarantee SIM card current I MSI network stabilization, improve the accuracy of network state detection; The network state of SIM card current I MSI is repeatedly detected, improves the accuracy of detection network, in order to avoid network state instability causes the erroneous judgement of network state, and then cause the mistake of IMSI to switch; In the repeatedly detection of network state, there is different network states once in a while, be regarded as burr, do not affect the judgement of network state, improve the accuracy rate that IMSI switches; Reasonable disposition is carried out to the time interval of detection network state, ensure that the rapidity obtaining network state, and then the quick obtaining to network state change, ensure the rapidity that IMSI switches, avoid extend switching time, Consumer's Experience is effective; Under particular case, the switching times between IMSI is limited, avoid mobile phone terminal and repeatedly switch and cause mobile phone terminal loss.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. realize two IMSI automatic switching methods for global roaming, it is characterized in that, described method comprises:
Step S101, after mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information;
Step S102, when described detection SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI;
Step S103, restart described mobile phone terminal, the switching of IMSI is come into force.
2. a kind of two IMSI automatic switching methods realizing global roaming as claimed in claim 1, it is characterized in that, step S101 comprises:
When mobile phone terminal enters starting procedure, the start make-up time of setting mobile phone terminal, after mobile phone terminal opening is stable, in detection mobile phone terminal, SIM card current I MSI is in the network state of current location.
3. a kind of two IMSI automatic switching methods realizing global roaming as claimed in claim 1, it is characterized in that, described step S102 comprises:
In the given time the SIM card current I MSI in mobile phone terminal is carried out to the detection of pre-determined number in the network state of current location;
When the SIM card current I MSI that pre-determined number in the given time detects is when the network state of current location is identical, determine the network state of this SIM card current I MSI in current location.
4. a kind of two IMSI automatic switching methods realizing global roaming as described in claim 1 or 2 or 3, is characterized in that, the network state in described step S102 comprise step on net successfully, to step on net limited or without service.
5. a kind of two IMSI automatic switching methods realizing global roaming as claimed in claim 1, it is characterized in that, step S103 also comprises:
The threshold number switched between SIM card current I MSI and another IMSI in setting mobile phone terminal.
6. realize two IMSI automatic switchover systems for global roaming, it is characterized in that, comprising:
Network state detecting module, for after mobile phone terminal opening is stable, in detection mobile phone terminal SIM card current I MSI current location network state and obtain mobile phone terminal current location information;
Handover module, for when described detection SIM card current I MSI the network state of current location change need switch time, SIM card current I MSI is switched to another IMSI and goes to log in the network having roaming communication agreement with this IMSI;
Restarting module, for restarting described mobile phone terminal, the switching of IMSI being come into force.
7. a kind of two IMSI automatic switchover systems realizing global roaming as claimed in claim 6, described network detection module, for after mobile phone terminal opening is stable, in detection mobile phone terminal, SIM card current I MSI is in the network state of current location, specifically comprises:
When mobile phone terminal enters starting procedure, the start make-up time of setting mobile phone terminal, after mobile phone terminal is stable, in detection mobile phone terminal, SIM card current I MSI is in the network state of current location.
8. a kind of two IMSI automatic switchover systems realizing global roaming as claimed in claim 6, is characterized in that, described network detection module, in the network state of current location, specifically comprising for detecting SIM card current I MSI in mobile phone terminal:
In the given time the SIM card current I MSI in mobile phone terminal is carried out to the detection of pre-determined number in the network state of current location;
Also comprise:
Network state determination module, for when the SIM card current I MSI that pre-determined number in the given time detects is when the network state of current location is identical, determines the network state of this SIM card current I MSI in current location.
9. a kind of two IMSI automatic switchover systems realizing global roaming as described in claim 6 or 7 or 8, is characterized in that, described network state comprise step on net successfully, to step on net limited and without service.
10. a kind of two IMSI automatic switchover systems realizing global roaming as claimed in claim 6, is characterized in that, also comprise:
Switching times setting module, for setting the threshold number switched between SIM card current I MSI and another IMSI in mobile phone terminal.
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| WO2017132936A1 (en) * | 2016-02-04 | 2017-08-10 | Taisys Rongda Technologies Co., Ltd. | System for providing multiple services over mobile network using multiple imsis |
| CN107580324A (en) * | 2017-09-22 | 2018-01-12 | 中国电子科技集团公司第三十研究所 | A kind of method for GSM IMSI secret protections |
| CN108391264A (en) * | 2018-01-26 | 2018-08-10 | 百备通讯有限公司 | Method for automatically switching numbers of SIM card |
| CN109041174A (en) * | 2018-10-31 | 2018-12-18 | 江苏恒宝智能系统技术有限公司 | A kind of method for connecting network and SIM card |
| CN111045742A (en) * | 2019-12-05 | 2020-04-21 | 惠州Tcl移动通信有限公司 | Card changing method and device of terminal equipment, storage medium and terminal equipment |
| CN111651313A (en) * | 2020-05-28 | 2020-09-11 | 捷开通讯(深圳)有限公司 | Conversion method and system of identification card, storage medium and terminal equipment |
| CN113891300A (en) * | 2021-09-30 | 2022-01-04 | 中国电信股份有限公司 | Roaming service processing method and system, electronic equipment and storage medium |
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| CN108391264A (en) * | 2018-01-26 | 2018-08-10 | 百备通讯有限公司 | Method for automatically switching numbers of SIM card |
| CN109041174A (en) * | 2018-10-31 | 2018-12-18 | 江苏恒宝智能系统技术有限公司 | A kind of method for connecting network and SIM card |
| CN111045742A (en) * | 2019-12-05 | 2020-04-21 | 惠州Tcl移动通信有限公司 | Card changing method and device of terminal equipment, storage medium and terminal equipment |
| CN111651313A (en) * | 2020-05-28 | 2020-09-11 | 捷开通讯(深圳)有限公司 | Conversion method and system of identification card, storage medium and terminal equipment |
| CN113891300A (en) * | 2021-09-30 | 2022-01-04 | 中国电信股份有限公司 | Roaming service processing method and system, electronic equipment and storage medium |
| CN113891300B (en) * | 2021-09-30 | 2024-11-29 | 中国电信股份有限公司 | Roaming service processing method and system, electronic equipment and storage medium |
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Application publication date: 20150311 |