CN106170996A - A kind of network registering method and terminal - Google Patents

A kind of network registering method and terminal Download PDF

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Publication number
CN106170996A
CN106170996A CN201580001919.5A CN201580001919A CN106170996A CN 106170996 A CN106170996 A CN 106170996A CN 201580001919 A CN201580001919 A CN 201580001919A CN 106170996 A CN106170996 A CN 106170996A
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CN
China
Prior art keywords
imsi
terminal
roaming place
determined
plmn
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CN201580001919.5A
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Chinese (zh)
Inventor
姜印清
柳晓见
顾超武
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN106170996A publication Critical patent/CN106170996A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Abstract

Embodiments of the invention provide a kind of network registering method and terminal, relate to the communications field, solve the problem that in prior art, terminal is the most long when carrying out IMSI switching, improve the utilization rate of Internet resources simultaneously.The program includes: when terminal is when the PLMN of roaming place is resident, and terminal receives the location area information of roaming place from PLMN；Terminal obtains the subscription data of terminal, the corresponding relation of each IMSI and the lane place contracted in multiple IMSI that subscription data comprises terminal；Terminal, according to location area information and subscription data, determines the IMSI corresponding with location area information；If the IMSI that terminal is currently in use is inconsistent with the IMSI determined, the IMSI being currently in use is switched to twoth IMSI consistent with the IMSI determined by terminal；Terminal is registered to resident PLMN by the 2nd IMSI.

Description

A kind of network registering method and terminal Technical field
The present invention relates to the communications field, more particularly to a kind of network registering method and terminal.
Background technology
IMSI (International Mobile Subscriber Identification Number, international mobile subscriber identity) is the mark for distinguishing mobile subscriber, and it is stored in SIM card, the effective information available for difference mobile subscriber.IMSI is by MCC (Mobile Country Code, Mobile Country Code MCC), MNC (Mobile Network Code, Mobile Network Code), MSIN (Mobile Subscriber Identification Number, identification number of mobile subscriber) composition, for example, the MCC of China is defined as 460, and the MNC of China Mobile is 00, then 460-00 is the communication cryptology of China Mobile in CHINESE REGION.
At present, SVLTE (Simultaneous Voice and LTE, double standby mobile phone mode) terminal can support the switching of multiple network standard for the mobile terminal of representative, that is, SVLTE terminals can support multiple IMSI switching, for example, support to be applied to China LTE (Long Term Evolution simultaneously, Long Term Evolution) network IMSI1 and applied to U.S. UMTS (Universal Mobile Telecommunications System, UMTS) network IMSI2, so, terminal from China roam to the U.S. when, SVLTE terminals can obtain the location area information in roaming place (U.S.), and then switch to IMSI2 from IMSI1, reuse network registry of the IMSI2 completions after switching in the U.S..
But, in existing consensus standard, before terminal switches to the IMSI2 of roaming place under international roaming scene from local IMSI1, the IMSI1 not switched can be used to repeatedly try to register the network of roaming place, after registration failure reaches certain number of times (such as 5 times), obtain the location area information (such as MCC information) of roaming place, and then terminal switches to the IMSI2 of roaming place according to the location area information of roaming place from local IMSI1, the network registry in roaming place is completed.It will be apparent that the IMSI2 due to that can not be switched to roaming place in time, is caused terminal repeatedly to be attempted the network of registration roaming place using incorrect IMSI, not only wastes Internet resources, while extending the time that network registry is carried out under international roaming scene, especially It is that when having multiple network standard in roaming place, terminal needs to travel through all network formats, and the futile repeatability of progress attempts registration respectively so that the time lengthening of terminal progress network registry to even more than ten minutes a few minutes.
The content of the invention
Embodiments of the invention provide a kind of network registering method and terminal, solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, while improving the utilization rate of Internet resources.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
In a first aspect, embodiments of the invention provide a kind of network registering method, including：
When terminal is resident in the PLMN (Public Land Mobile Network, public land mobile network) of roaming place, the terminal receives the location area information of the roaming place from the PLMN；
The terminal obtains the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
The terminal is according to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
If the first IMSI and the IMSI determined that the terminal is being used are inconsistent,
The first IMSI used is switched to twoth IMSI consistent with the IMSI determined by the terminal；
The terminal is registered to the resident PLMN by the 2nd IMSI.
With reference in a first aspect, in the first possible implementation of first aspect, if the first IMSI that the terminal is being used is consistent with the IMSI determined, methods described also includes：
The terminal is registered to the resident PLMN by the first IMSI.
With reference in a first aspect, in second of possible implementation of first aspect, if the first IMSI and the IMSI determined that the terminal is being used are inconsistent, methods described also includes：
The terminal accesses the limited service that the PLMN of the roaming place is provided.
Second aspect, embodiments of the invention provide a kind of network registering method, including：
When terminal is resident in the public land mobile network PLMN of roaming place, the terminal receives the location area information of the roaming place from the PLMN；
The terminal obtains the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
The terminal is according to the location area information and subscription data, it is determined that IMSI corresponding with the location area information；
The terminal determines that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used be the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
The terminal is registered to the resident PLMN by the IMSI used.
With reference to second aspect, in the first possible implementation of second aspect, described when terminal is before when the public land mobile network PLMN of roaming place is resident, in addition to：
The terminal receives the information of roaming place of user's input；
The terminal searches the IMSI that the terminal is determined according to the information of roaming place in preset roaming place and IMSI corresponding relation.
The third aspect, embodiments of the invention provide a kind of terminal, including：
Receiving unit, for when terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place to be received from the PLMN；
Acquiring unit, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
Determining unit, for the subscription data in the location area information and the receiving unit in the receiving unit, it is determined that IMSI corresponding with the location area information；
Switch unit, if the first IMSI used for the terminal and the IMSI determined in the determining unit are inconsistent, twoth IMSI consistent with the IMSI determined is switched to by the first IMSI used；
Registering unit, for being registered to the resident PLMN by the 2nd IMSI in the switch unit.
With reference to the third aspect, in the first possible implementation of the third aspect,
The registering unit, if it is consistent with the IMSI determined in the determining unit to be additionally operable to the first IMSI that the terminal using, the resident PLMN is registered to by the first IMSI.
With reference to the third aspect, in second of possible implementation of the third aspect, the terminal also includes limited service registering unit, wherein,
The limited service registering unit, if the first IMSI and the IMSI determined that are being used for the terminal are inconsistent, accesses the limited service that the PLMN of the roaming place is provided.
Fourth aspect, embodiments of the invention provide a kind of terminal, including：
Receiving unit, for when terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place to be received from the PLMN；
Acquiring unit, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
Determining unit, for the subscription data in the location area information and the receiving unit in the receiving unit, it is determined that IMSI corresponding with the location area information；And determine that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used be the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
Registering unit, for being registered to the resident PLMN by the IMSI used.
With reference to fourth aspect, in the first possible implementation of fourth aspect,
The receiving unit, is additionally operable to receive the information of roaming place of user's input；
The determining unit, is additionally operable to according to the information of roaming place, and the IMSI that the terminal is determined is searched in preset roaming place and IMSI corresponding relation.
5th aspect, embodiments of the invention provide a kind of terminal, and the terminal includes：
Input block；
Communication interface；
Memory；And
The processor coupled with the memory；
The communication interface is used for：When terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place is received from the PLMN；
The processor is used for：
Obtain the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
According to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
It is determined that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used is the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；And
Indicate that the terminal is registered to the resident PLMN by the IMSI used.
With reference to the 5th aspect, in the first mode in the cards of the 5th aspect, if the first IMSI that the terminal is being used is consistent with the IMSI determined,
The processor is additionally operable to：The communication interface is called to be registered to the resident PLMN by the first IMSI.
With reference to the 5th aspect, in second of mode in the cards of the 5th aspect, if the first IMSI and the IMSI determined that the terminal is being used are inconsistent,
The processor is additionally operable to：Indicate that the terminal accesses the limited service that the PLMN of the roaming place is provided.
6th aspect, embodiments of the invention provide a kind of terminal, and the terminal includes：
Input block；
Communication interface；
Memory；And
The processor coupled with the memory；
The communication interface is used for：When terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place is received from the PLMN；
The processor is used for：
The subscription data of the terminal is obtained, the subscription data is multiple comprising the terminal Each IMSI and the corresponding relation in the position area contracted in IMSI；
According to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
It is determined that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used is the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；And
Indicate that the terminal is registered to the resident PLMN by the IMSI used.
With reference to the 6th aspect, in the first possible implementation of the 6th aspect,
The input block is used for：Receive the information of roaming place of user's input；
The processor is additionally operable to：According to the information of roaming place, the IMSI that the terminal is determined is searched in preset roaming place and IMSI corresponding relation.
Embodiments of the invention provide a kind of network registering method and terminal, terminal is by obtaining the location area information of its subscription data and roaming place, it is determined that IMSI corresponding with the location area information, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising terminal, if the first IMSI that the terminal is being used and the IMSI determined are inconsistent, the first IMSI used is then directly switched to twoth IMSI consistent with the IMSI determined by terminal, and use the 2nd IMSI registration roaming place networks after switching, so, without as in existing protocol, terminal needs to use the network for registering roaming place that incorrect IMSI is repeated before IMSI switchings are carried out, until the network for all standards that traversal terminal is supported, it was found that after the network of all standards all registration failures, IMSI switchings are just carried out according to the location area information of roaming place, it can be seen that, this programme solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, the utilization rate of Internet resources is improved simultaneously.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below.
Fig. 1 is a kind of schematic flow sheet one of network registering method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic flow sheet two of network registering method provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet three of network registering method provided in an embodiment of the present invention；
Fig. 4 is a kind of interaction schematic diagram of network registering method provided in an embodiment of the present invention；
Fig. 5 is a kind of hardware schematic of terminal provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation one of terminal provided in an embodiment of the present invention；
Fig. 7 is a kind of structural representation two of terminal provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation three of terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Embodiment one
Embodiments of the invention provide a kind of network registering method, as shown in figure 1, including：
101st, when terminal is resident in the PLMN of roaming place, terminal receives the location area information of the roaming place from the PLMN.
102nd, terminal obtains its subscription data, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal.
103rd, terminal is according to location area information and subscription data, it is determined that IMSI corresponding with the location area information.
If the 104, the first IMSI that terminal is being used and the IMSI determined are inconsistent, the first IMSI used is then switched to twoth IMSI consistent with the IMSI determined by terminal.
105th, terminal is registered to the PLMN of the roaming place by the 2nd IMSI.
The terminal being related in the embodiment of the present invention, it can be the mobile terminal for supporting multiple IMSI, for example, SVLTE terminals can support 3 IMSI, it is the own IMSI1 of China Telecom respectively, IMSI1 can be used for the networks such as the HRPD (High Rate Packet Data, HRPD) on ground such as access China's Mainland；It can also the own IMSI2 of branch China Telecom, IMSI2 can be used for the networks such as the LTE on ground such as access China's Mainland；In addition, it can also support the IMSI3 of Waduven's (US carrier), IMSI3 can be used for the G/W (i.e. 3G network/WCDMA networks) in access roaming region, that is this SVLTE terminals are both PLMN1 (the Public Land Mobile Network belonging to IMSI1, public land mobile network) contracting terminal, while being also PLMN2 belonging to IMSI2 and IMSI3 and PLMN3 contracting terminal.
It can be seen that, when this multiple IMSI of support terminal roaming to the roaming place contracted, especially under international roaming scene, the terminal can switch to the IMSI of roaming place from the first IMSI being being currently used, the IMSI of roaming place can be thus used to carry out network registry in the roaming place, to ensure the normal communication of user.
In a step 101, the network that terminal can be searched for regularly in current environment automatically, when terminal enters roaming place or started shooting in roaming place, the corresponding PLMN that can be provided according to the strategy of terminal built-in (such as selection signal most strong network) selection roaming place is resident, and in order to register the corresponding network of roaming place to ensure normal communication of the terminal in roaming place, terminal needs that the illegal IMSI used (i.e. the first IMSI) is switched into the legal IMSI in roaming place (i.e. the 2nd IMSI) in time, in order to which SS later registers the network of roaming place using the 2nd legal IMSI.
Now, terminal can receive the location area information of the roaming place from resident PLMN, for example, current PLMN MCC (Mobile Country Code, Mobile Country Code MCC) is 310 (representing that the current position of terminal is located at U.S. locations).
Wherein, position area (LA, Location Area) is the set of one group of cell in GSM, and the effect in set location area is the position for enabling mobile switch or mobile switching centre to know terminal in time.
Location area information, may be used to indicate the information in terminal belonging positions area, for example, location area information can refer to the MCC of terminal, CHINESE REGION is referred to when MCC is 460, U.S. locations are referred to when MCC is 310；Location area information can also refer to the LAC (Location Area Code, position code) or LAI (Location Area Identity, band of position ID) of terminal, wherein, LAI is MCC, MNC and LAC combination.
Further, in a step 102, terminal can also obtain its subscription data, due to User is before using terminal is communicated, need to complete to contract with each operator, for this multiple IMSI of support terminal, these terminals need the different operators with country variant to contract respectively, it could cross when ensureing that user roams to roaming place, the subscription data contracted according to terminal obtains the service on the ground in time, therefore, when terminal is resident in the PLMN of roaming place, terminal can also get the subscription data of the roaming place.
Wherein, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal, further, the corresponding relation of operator that can also be further comprising each IMSI and the different regions contracted in the subscription data, as shown in table 1, the terminal can support 3 operators to distinguish corresponding 3 IMSI.
Table 1
IMSI1 China Mobile
IMSI2 CHINAUNICOM
IMSI3 Waduven of the U.S.
Certainly, the information such as conditions of service, the service range that can also have been contracted in the subscription data including the operator of terminal and roaming place.
For example, the IMSI2 that terminal A is supported has contracted short message and session services with the operator of Waduven in the U.S., that is terminal A can enjoy short message and session services after completing local network registry using IMSI2 in the U.S., so, when terminal A roams to the U.S., terminal A subscription data is obtained, such as, the subscription data is the IMSI lists that operator of Waduven allows to use in the U.S., legitimacies of the IMSI that terminal just can used according to IMSI lists judgement terminal A in the U.S..
In step 103, after terminal gets location area information and the subscription data of roaming place, just it can judge whether the first IMSI that terminal is being used is legal in roaming place according to the location area information and subscription data of roaming place, the IMSI corresponding to the location area information that gets is determined, whether the first IMSI used with terminal is consistent.
Exemplary, if the position of the location area information instruction terminal for the roaming place that terminal is received from resident PLMN is in U.S. locations, and the IMSI for the CHINESE REGION that it is 460 that the IMSI1 that terminal is being used, which is MCC, subscription data so according to table 1, IMSI3 corresponding to the location area information of the roaming place and the IMSI1 that terminal is being used are not consistent The IMSII that i.e. terminal is being used is illegal in roaming place.
It should be noted that, the first IMSI that involved terminal is being used in the embodiment of the present invention may particularly include two kinds of situations, when terminal is being started shooting after entering roaming place, first IMSI can be the last used IMSI of terminal, when being in open state when terminal enters roaming place, this is repeated no more in the IMSI that first IMSI is then using for terminal, subsequent embodiment.
Further, after execution of step 103, if the first IMSI that terminal is being used is consistent with the IMSI determined, the first IMSI that i.e. terminal is being used is legal in roaming place, so, terminal directly can carry out location update operations using the PLMN of the legal roaming place, and complete to register the PLMN of roaming place network registry.
Accordingly, if the first IMSI that is using of terminal and the IMSI determined are inconsistent, i.e., the first IMSI that terminal is being used is illegal in roaming place, so, as described in step 104, now, the first IMSI used is switched to twoth IMSI consistent with the IMSI determined by terminal.
Still continue to use the example in step 103, subscription data according to table 1, IMSI3 corresponding to the location area information of the roaming place and the IMSI1 that terminal is being used are not consistent, the IMSI1 that i.e. terminal is being used is illegal in roaming place, therefore, card module in terminal instruction terminal switches to the IMSI1 that terminal is being used the IMSI3 corresponding to the location area information of the roaming place, in order to which terminal completes the network registry flow of roaming place using the IMSI3 after switching.
In addition, if the first IMSI that terminal is being used and the IMSI determined are inconsistent, terminal is when performing step 104, the limited service that the PLMN of roaming place where can also accessing is provided, so, terminal can ensure that user carries out the business such as urgent call using the limited service of roaming place while IMSI is switched.
Certainly, in embodiments of the present invention, terminal judges the first IMSI used in the whether legal method in roaming place according to subscription data, it is applicable not only to support multiple IMSI terminal to carry out the scene of IMSI switchings, for any terminal, the legitimacy for the first IMSI that usable this method is being used terminal judges before location update operations are carried out, terminal just can launch position renewal operation only in the case where the first IMSI is legal IMSI To complete network registry of the terminal in current resident network, once the first IMSI is illegal IMSI, terminal just registers the limited service of resident network, so, avoid terminal in the prior art and use the trial registered network that illegal IMSI is repeated, and cause the problem of network registry speed declines, while Internet resources can be saved.
In step 105, after the first current IMSI is switched to two legal IMSI of roaming place by terminal, the legal IMSI supported by the 2nd IMSI after switching by the network of roaming place, therefore, terminal can use the 2nd IMSI launch positions after switching to update operation, and then complete the network registry in the PLMN of roaming place.
In addition, the embodiment of the present invention also provides a kind of network registering method, specifically, as shown in Fig. 2 can also carry out step 100 to 300 performing step 101 to terminal before 103.
100th, terminal receives the information of roaming place of user's input.
200th, terminal is according to information of roaming place, and the corresponding IMSI of the information of roaming place is searched in corresponding relation of the preset roaming place with IMSI.
300th, the IMSI used before being powered off, is switched to the corresponding IMSI of the information of roaming place of this in step 200 by terminal.
So, when the information of roaming place that terminal is inputted according to user reaches the roaming place, above-mentioned steps 101 to 103 can be continued executing with, until terminal is according to location area information and subscription data, it is determined that IMSI corresponding with the location area information, now, due in step 300, the IMSI used is switched to the corresponding IMSI of the information of roaming place of this in step 200 by terminal, therefore, the first IMSI that terminal is being used when the PLMN of roaming place is resident is the corresponding IMSI of the information of roaming place in step 200, so, terminal determine the first IMSI used it is consistent with the IMSI determined after, the IMSI used without switching, and the PLMN of the roaming place can be directly registered to by the corresponding IMSI of the information of roaming place.
Embodiments of the invention provide a kind of network registering method, terminal is by obtaining the location area information of its subscription data and roaming place, it is determined that IMSI corresponding with the location area information, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising terminal, if the first IMSI that the terminal is being used and the IMSI determined are inconsistent, the IMSI that the first IMSI used is then directly switched to and determined by terminal The 2nd consistent IMSI, and use the 2nd IMSI registration roaming place networks after switching, so, without as in existing protocol, terminal needs to use the network for registering roaming place that incorrect IMSI is repeated before IMSI switchings are carried out, until the network for all standards that traversal terminal is supported, it was found that after the network of all standards all registration failures, IMSI switchings are just carried out according to the location area information of roaming place, it can be seen that, this programme solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, the utilization rate of Internet resources is improved simultaneously.
Embodiment two
Embodiments of the invention provide a kind of network registering method, as shown in figure 3, including：
201st, terminal determines whether to receive the information of roaming place of user's input.
If 202a, receiving the information of roaming place of user's input, terminal searches the corresponding IMSI of the information of roaming place then according to information of roaming place in corresponding relation of the preset roaming place with IMSI.
The IMSI used before being powered off, is switched to the corresponding IMSI of the information of roaming place in step 202a by 203a, terminal.
204a, when terminal is started shooting in roaming place and PLMN in roaming place is resident, the location area information of the roaming place is received from the PLMN.
205a, terminal obtain its subscription data, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal.
206a, terminal are according to location area information and subscription data, it is determined that IMSI corresponding with the location area information, and determine that the corresponding IMSI of the location area information is the corresponding IMSI of the information of roaming place in step 202a.
207a, terminal are registered to the PLMN of the roaming place by the corresponding IMSI of the information of roaming place.
If 202b, the information of roaming place for being not received by user's input, when terminal is resident in the PLMN of roaming place, terminal receives the location area information of the roaming place from the PLMN.
203b, terminal obtain its subscription data, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal.
204b, terminal according to location area information and subscription data, it is determined that with the location area information Corresponding IMSI.
If the first IMSI that 205b, terminal are being used and the IMSI determined are inconsistent, the first IMSI used is then switched to twoth IMSI consistent with the IMSI determined by terminal.
206b, terminal access the limited service that the PLMN of the roaming place is provided.
207b, terminal are registered to the PLMN of the roaming place by the 2nd IMSI.
If the first IMSI that 208b, terminal are being used is consistent with the IMSI determined, terminal is then registered to the PLMN of the roaming place by the first IMSI.
In step 201, when user goes on a journey to before roaming place, the information of roaming place for the roaming place that will be reached can be inputted in terminal, for example, user can input the information of roaming place of " roaming place is the U.S. " in terminal, if terminal receives the information of roaming place of user's input, step 202 is performed；If terminal is not received by the information of roaming place of user's input, step 203 is performed to 209.
In step 202a, if terminal receives the information of roaming place of user's input, terminal just can search the corresponding IMSI of the information of roaming place according to the information of roaming place in corresponding relation of the preset roaming place with IMSI.
In step 203, terminal is before being powered off, the IMSI used switched into the corresponding IMSI of the information of roaming place of this in step 202, it is to avoid when terminal attempts the network that all terminals of registration can search for using the incorrect IMSI not switched in roaming place, the time overhead brought.
For example, user needs to go on business from Beijing to Washington, DC, so, user can input the information of roaming place of Washington, DC, the information of roaming place for the Washington, DC that terminal is inputted according to user, in the corresponding relation list of the information of roaming place and IMSI of terminal preset directly in terminal, determine the IMSI2 that the IMSI of Washington, DC is supported by terminal, so, before terminal closedown goes to roaming place, terminal switches to the first IMSI used the 2nd IMSI of roaming place.
It can be seen that, terminal just completes IMSI switching flows before roaming place is roamed to, when the information of roaming place that terminal is inputted according to user reaches the roaming place, terminal can directly complete the network registry of roaming place using the 2nd IMSI after switching, greatly reduce terminal and exist The network registry time of roaming place.
After execution of step 203a, terminal can continue executing with above-mentioned steps 204a to 207a, until terminal is registered to the PLMN of the roaming place by the corresponding IMSI of the information of roaming place, the related elaboration of step 100-300 in embodiment one is for details, reference can be made to, therefore here is omitted.
In step 202b, if terminal is not received by the information of roaming place of user's input, then, when terminal is resident in the PLMN of roaming place, terminal can receive the location area information of the roaming place from resident PLMN, and the step can be found in the step 101 in embodiment one, therefore here is omitted.
In step 203b, when terminal is resident in the PLMN of roaming place, terminal can also obtain its subscription data, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal.
It specifically, the subscription data can be preset in terminal, can also be stored in network side equipment, when PLMN of the terminal in roaming place is resident, terminal obtains the subscription data, and judge according to the subscription data legitimacy of the first currently used IMSI of terminal.
It should be noted that, the PLMN of the roaming place can also be included in the subscription data allows the IMSI lists used, so, when terminal is resident in the PLMN of roaming place, terminal obtains the IMSI lists from the PLMN, now, if the first currently used IMSI of terminal is in the IMSI lists, then the first IMSI of explanation is legal IMSI in the PLMN, if the first currently used IMSI of terminal is not in the IMSI lists, then the first IMSI of explanation is illegal IMSI in the PLMN, so, terminal can determine the 2nd legal IMSI of the terminal in the PLMN according to the location area information of the IMSI lists and roaming place.
In step 204b, after terminal gets location area information and the subscription data of roaming place, just it can judge whether the first IMSI that terminal is being used is legal in roaming place according to the location area information and subscription data of roaming place, the IMSI corresponding to the location area information that gets is determined, whether the first IMSI used with terminal is consistent.The step can be found in the step 103 in embodiment one, therefore here is omitted.
Further, after execution of step 204b, if the first IMSI that is using of terminal and the IMSI determined are inconsistent, step 205b to 207b is performed, if terminal The first IMSI used is consistent with the IMSI determined, then performs step 28b.
In step 205b, if the first IMSI that terminal is being used and the IMSI determined are inconsistent, the first IMSI that i.e. terminal is being used is illegal in roaming place, then, the first IMSI used can be switched to twoth IMSI consistent with the IMSI determined by terminal.
In step 206b, terminal is when performing step 205b, the limited service that the PLMN of roaming place where can also accessing is provided, so, and terminal can ensure that user carries out the business such as urgent call using the limited service of roaming place while IMSI is switched.
Exemplary, reference can be made to Fig. 4 and embodiment one, Registering modules and mobile management module are provided with terminal, after terminal gets the location area information of subscription data and roaming place, legitimacies of the first IMSI that mobile management module is being used terminal in roaming place judges, judge whether the first IMSI that terminal using is consistent with the IMSI determined, if the first IMSI and the IMSI determined are inconsistent, illustrate that the first IMSI that terminal is being used is illegal in roaming place, so, terminal just can be while the limited service of roaming place be registered, the first IMSI used is switched into twoth IMSI consistent with the IMSI determined, so, terminal just can use networks of the 2nd IMSI after switching to the network device registration roaming place.
And in existing protocol, still reference can be made to Fig. 4, web search can be carried out when terminal roams to roaming place from CHINESE REGION, simultaneously, Registering modules can be attempted to carry out network registry course to the multiple network standard once used respectively, such as LTE network of CHINESE REGION (MCC is 460), the GSM network of CHINESE REGION and the UMTS network of CHINESE REGION etc., but, these networks of CHINESE REGION are not supported in roaming place, therefore, after these tentative registrations all fail, the Registering modules of terminal can also be attempted to be registered in roaming place (such as U.S. locations respectively, MCC is the known network 310) searched, because the first IMSI that terminal is being used is illegal IMSI, when attempt to be registered in the known network that roaming place searched all fail after, terminal can just go to register the limited service of roaming place, and complete follow-up IMSI switching flows, finally, using network from the 2nd IMSI after switching to the network device registration roaming place.
As can be seen that embodiments of the invention pass through the first IMSI that is using terminal Legitimacy in roaming place is judged, quick IMSI switching flows can be achieved, the utilization rate of Internet resources is improved.
In step 207b, when terminal indicates that the first current IMSI is switched to the 2nd legal IMSI of roaming place by card module, the legal IMSI supported by the 2nd IMSI after switching by the network of roaming place, therefore, terminal can use the 2nd IMSI after switching to carry out location update operations, and the PLMN of the roaming place is registered, to ensure normal communication of the user in roaming place.
Need further exist for explanation be, if terminal has been switched off before roaming place carries out registered network, i.e. terminal needs to roam start when roaming place carries out network registry, in this case, because starting up of terminal can be divided into two processes, before one is SIM card operation and after SIM card operation, and the IMSI switching methods (i.e. step 202b to 206b) that the embodiment of the present invention is provided can be applied to before SIM card operation, can also be applied to after SIM card operation.
It is preferred that, if terminal is roamed in roaming place and started shooting, the limited service that step 202b to 206b registers roaming place can be preferentially performed before the SIM card operation of terminal, and complete the 2nd legal IMSI of roaming place switching, so, with regard to the checking without carrying out IMSI legitimacies to SIM card after the SIM card operation of terminal, the network of roaming place is directly registered according to the 2nd legal IMSI, the speed of roaming place network registry is improved while the available machine time is reduced.
In addition, after execution of step 204b, if the first IMSI that terminal is being used is consistent with the IMSI determined, performing step 208b.
Specifically, in step 208b, if the first IMSI that terminal is being used is consistent with the IMSI determined, the first IMSI that i.e. terminal is being used is legal in roaming place, so, terminal directly can carry out location update operations using the PLMN of the legal roaming place, and complete to register the PLMN of roaming place network registry.
Embodiments of the invention provide a kind of network registering method, terminal is by obtaining the location area information of its subscription data and roaming place, it is determined that IMSI corresponding with the location area information, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising terminal, if the first IMSI that the terminal is being used and the IMSI determined are inconsistent, the IMSI that the first IMSI used is then directly switched to and determined by terminal The 2nd consistent IMSI, and use the 2nd IMSI registration roaming place networks after switching, so, without as in existing protocol, terminal needs to use the network for registering roaming place that incorrect IMSI is repeated before IMSI switchings are carried out, until the network for all standards that traversal terminal is supported, it was found that after the network of all standards all registration failures, IMSI switchings are just carried out according to the location area information of roaming place, it can be seen that, this programme solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, the utilization rate of Internet resources is improved simultaneously.
Embodiment three
Accompanying drawing 5 is illustrated that a kind of hardware schematic of terminal of the present invention, mobile terminal provided in an embodiment of the present invention can be used for implementing the method that the various embodiments of the present invention shown in above-mentioned Fig. 1-Fig. 4 are realized, for convenience of description, it illustrate only the part related to the embodiment of the present invention, particular technique details is not disclosed, refer to the various embodiments of the present invention shown in Fig. 1-Fig. 4.
The terminal can be mobile phone, tablet personal computer, notebook computer, UMPC (Ultra-mobile Personal Computer, Ultra-Mobile PC), net book, PDA (Personal Digital Assistant, personal digital assistant) etc. terminal device, the embodiment of the present invention is illustrated so that terminal is mobile phone as an example, and Fig. 5 is illustrated that the block diagram of the part-structure of the mobile phone related to various embodiments of the present invention.
Optionally, the mobile phone that the mobile phone terminal can switch for the multiple IMSI of support, for example, SVLTE mobile phones can support 3 IMSI, it is that China Telecom has IMSI1 by oneself respectively, IMSI1 can be used for the networks such as the HRPD on ground such as access China's Mainland；It can also support China Telecom to have IMSI2 by oneself, and IMSI2 can be used for the networks such as the LTE on ground such as access China's Mainland；In addition, it can also support the IMSI3 of Waduven's (US carrier), IMSI3 can be used for the G/W networks (i.e. 3G network/WCDMA networks) in access roaming region, that is this SVLTE terminals are both the signing mobile phone of IMSI1 belonging networks, while being also the signing mobile phone of IMSI2 and IMSI3 belonging networks.
As shown in figure 5, the mobile phone includes：The parts such as communication interface 11, memory 12, processor 13 and input block 14, these parts can be connected by bus 15.It will be understood by those skilled in the art that the handset structure shown in Fig. 5 is not constituted to mobile phone Limit, can include than illustrating more or less parts, either combine some parts or different parts arrangement.
Each component parts of mobile phone is specifically introduced with reference to Fig. 5：
Wherein, communication interface 11, available for receive and send messages or communication process in, the reception and transmission of signal especially, after the downlink information of base station is received, are handled to processor 03；In addition, up data are sent into base station.Generally, communication interface can be by optical communication interface, electric communication interface, wireless communication interface or its any combination realize that exemplary, communication interface includes but is not limited to antenna, at least one amplifier, transceiver, coupler, LNA (low noise amplifier, low-noise amplifier), duplexer etc., for example, the communication interface 11 can be RF (Radio Frequency, radio frequency) circuit.In addition, communication interface 11 can also be communicated by radio communication with network and other equipment.The radio communication can use any communication standard or agreement, including but not limited to GSM (global system of mobile communication, global system for mobile communications), GPRS (general packet radio service, general packet radio service), CDMA (code division multiple access, CDMA), WCDMA (wideband code division multiple access, WCDMA), LTE (long term evolution, Long Term Evolution), Email, SMS (short messaging service, Short Message Service) etc..
Memory 12, available for storage software program and module, processor 13 is stored in the software program and module of memory 12 by operation, so as to perform various function application and the data processing of mobile phone.Memory 12 can mainly include storing program area and storage data field, wherein, application program (such as sound-playing function, image player function etc.) that storing program area can be needed for storage program area, at least one function etc.；Storage data field can be stored uses created data (such as voice data, view data, phone directory etc.) etc. according to mobile phone.In addition, memory 12 can include high-speed random access memory, nonvolatile memory, for example, at least one disk memory, flush memory device or other volatile solid-state parts can also be included.
Processor 13, is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, by operation or perform the software program being stored in memory 12 and / or module, and the data being stored in memory 12 are called, the various functions and processing data of mobile phone are performed, so as to carry out integral monitoring to mobile phone.Optionally, processor 13 may include one or more processing units；It is preferred that, processor 13 can integrated application processor and modem processor, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor mainly handles radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 13.
Input block 14, is inputted available for the numeral or character information for receiving input, and the key signals that generation is set with the user of mobile phone and function control is relevant.Specifically, input block 14 may include touch-screen and other input equipments.Wherein, touch-screen, also referred to as contact panel, touch operation (such as user use any suitable object or annex operations on the touchscreen or touch-screen near such as finger, stylus) of the user on or near it is collected, and corresponding attachment means are driven according to formula set in advance.Optionally, touch-screen may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 13, and the order sent of reception processing device 13 and can be performed.Furthermore, it is possible to realize touch-screen using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except touch-screen, input block 14 can also include other input equipments.Specifically, the one or more that other input equipments can include but is not limited in physical keyboard, function key (such as volume control button, power switch button etc.), trace ball, mouse, action bars etc..
In an embodiment of the present invention, the communication interface 01, for when terminal is resident in the public land mobile network PLMN of roaming place, receiving the location area information of the roaming place from the PLMN and storing to memory 02；And obtain the subscription data of the terminal and store to memory 02, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；The processor 01, for according to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；And if the first IMSI and the IMSI determined that the terminal is being used are inconsistent, the first IMSI used is switched to consistent with the IMSI determined The 2nd IMSI；The processor 01, is additionally operable to call the communication interface 01 to be registered to the resident PLMN according to the 2nd IMSI.
Further, the processor 01, if it is consistent with the IMSI determined to be additionally operable to the first IMSI that the terminal using, calls the communication interface 01 to be registered to the resident PLMN by the first IMSI.
Further, the processor 01, if be additionally operable to, the first IMSI and the IMSI determined that the terminal using are inconsistent, the limited service that the PLMN for accessing the roaming place by the communication interface 01 is provided.
In another embodiment of the invention, the communication interface 11, for when terminal is resident in the public land mobile network PLMN of roaming place, receiving the location area information of the roaming place from the PLMN and storing to memory 12；And obtain the subscription data of the terminal and store to memory 12, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
The processor 13, for according to the location area information and subscription data, it is determined that IMSI corresponding with the location area information；And determine that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used be the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
The processor 13, is additionally operable to call the communication interface 11 to be registered to the resident PLMN by the IMSI used.
Further, the input block 14, for receiving the information of roaming place of user's input and storing to memory 12；
The processor 13, is additionally operable to according to the information of roaming place, searches the IMSI that the terminal is determined in preset roaming place and IMSI corresponding relation in memory 12.
Embodiments of the invention provide a kind of terminal, terminal is by obtaining the location area information of its subscription data and roaming place, it is determined that IMSI corresponding with the location area information, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising terminal, if the first IMSI that the terminal is being used and the IMSI determined are inconsistent, the first IMSI used is then directly switched to second consistent with the IMSI determined by terminal IMSI, and use the 2nd IMSI registration roaming place networks after switching, so, without as in the prior art, terminal needs to use the network for registering roaming place that incorrect IMSI is repeated before IMSI switchings are carried out, until the network for all standards that traversal terminal is supported, it was found that after the network of all standards all registration failures, IMSI switchings are just carried out according to the location area information of roaming place, it can be seen that, this programme solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, the utilization rate of Internet resources is improved simultaneously.
Example IV
Embodiments of the invention provide a kind of terminal, as shown in fig. 6, including：
Receiving unit 21, for when terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place to be received from the PLMN；
Acquiring unit 22, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
Determining unit 23, for the subscription data in the location area information and the receiving unit 22 in the receiving unit 21, it is determined that IMSI corresponding with the location area information；
Switch unit 24, if the first IMSI used for the terminal and the IMSI determined in the determining unit 23 are inconsistent, twoth IMSI consistent with the IMSI determined is switched to by the first IMSI used；
Registering unit 25, for being registered to the resident PLMN by the 2nd IMSI in the switch unit 24.
Further, the registering unit 25, if it is consistent with the IMSI determined in the determining unit to be additionally operable to the first IMSI that the terminal using, the resident PLMN is registered to by the first IMSI.
Further, as shown in fig. 7, the terminal also includes limited service registering unit 26, wherein,
The limited service registering unit 26, if the first IMSI and the IMSI determined that are being used for the terminal are inconsistent, accesses the limited service that the PLMN of the roaming place is provided.
Embodiments of the invention provide a kind of terminal, as shown in figure 8, including：
Receiving unit 31, for when terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place to be received from the PLMN；
Acquiring unit 32, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
Determining unit 33, for the subscription data in the location area information and the receiving unit 32 in the receiving unit 31, it is determined that IMSI corresponding with the location area information；And determine that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used be the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
Registering unit 34, for being registered to the resident PLMN by the IMSI used.
Further, the receiving unit 31, is additionally operable to receive the information of roaming place of user's input；
The determining unit 33, is additionally operable to according to the information of roaming place, and the IMSI that the terminal is determined is searched in preset roaming place and IMSI corresponding relation.
Embodiments of the invention provide a kind of terminal, terminal is by obtaining the location area information of its subscription data and roaming place, it is determined that IMSI corresponding with the location area information, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising terminal, if the first IMSI that the terminal is being used and the IMSI determined are inconsistent, the first IMSI used is then directly switched to twoth IMSI consistent with the IMSI determined by terminal, and use the 2nd IMSI registration roaming place networks after switching, so, without as in the prior art, terminal needs to use the network for registering roaming place that incorrect IMSI is repeated before IMSI switchings are carried out, until the network for all standards that traversal terminal is supported, it was found that after the network of all standards all registration failures, IMSI switchings are just carried out according to the location area information of roaming place, it can be seen that, this programme solve terminal in the prior art taken when carrying out IMSI switchings it is long and the problem of cause the network registry time to increase, the utilization rate of Internet resources is improved simultaneously.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention Be not limited thereto, any one skilled in the art the invention discloses technical scope in, change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (15)

  1. A kind of network registering method, it is characterised in that including：
    When terminal is resident in the public land mobile network PLMN of roaming place, the terminal receives the location area information of the roaming place from the PLMN；
    The terminal obtains the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    The terminal is according to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
    If the first IMSI and the IMSI determined that the terminal is being used are inconsistent,
    The first IMSI used is switched to twoth IMSI consistent with the IMSI determined by the terminal；
    The terminal is registered to the resident PLMN by the 2nd IMSI.
  2. According to the method described in claim 1, it is characterised in that if the first IMSI that the terminal is being used is consistent with the IMSI determined, methods described also includes：
    The terminal is registered to the resident PLMN by the first IMSI.
  3. According to the method described in claim 1, it is characterised in that if the first IMSI and the IMSI determined that the terminal is being used are inconsistent, methods described also includes：
    The terminal accesses the limited service that the PLMN of the roaming place is provided.
  4. A kind of network registering method, it is characterised in that including：
    When terminal is resident in the public land mobile network PLMN of roaming place, the terminal receives the location area information of the roaming place from the PLMN；
    The terminal obtains the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    The terminal is according to the location area information and subscription data, it is determined that IMSI corresponding with the location area information；
    The terminal determines that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used is the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
    The terminal is registered to the resident PLMN by the IMSI used.
  5. Method according to claim 4, it is characterised in that described when terminal is before when the public land mobile network PLMN of roaming place is resident, in addition to：
    The terminal receives the information of roaming place of user's input；
    The terminal searches the IMSI that the terminal is determined according to the information of roaming place in preset roaming place and IMSI corresponding relation.
  6. A kind of terminal, it is characterised in that including：
    Receiving unit, for when terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place to be received from the PLMN；
    Acquiring unit, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    Determining unit, for the subscription data in the location area information and the receiving unit in the receiving unit, it is determined that IMSI corresponding with the location area information；
    Switch unit, if the first IMSI used for the terminal and the IMSI determined in the determining unit are inconsistent, twoth IMSI consistent with the IMSI determined is switched to by the first IMSI used；
    Registering unit, for being registered to the resident PLMN by the 2nd IMSI in the switch unit.
  7. Terminal according to claim 6, it is characterised in that
    The registering unit, if it is consistent with the IMSI determined in the determining unit to be additionally operable to the first IMSI that the terminal using, the resident PLMN is registered to by the first IMSI.
  8. Terminal according to claim 6, it is characterised in that the terminal also includes limited service registering unit, wherein,
    The limited service registering unit, if the first IMSI and the IMSI determined that are being used for the terminal are inconsistent, accesses the limited service that the PLMN of the roaming place is provided.
  9. A kind of terminal, it is characterised in that including：
    Receiving unit, is resident for the public land mobile network PLMN when terminal in roaming place When, the location area information of the roaming place is received from the PLMN；
    Acquiring unit, the subscription data for obtaining the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    Determining unit, for the subscription data in the location area information and the receiving unit in the receiving unit, it is determined that IMSI corresponding with the location area information；And determine that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used be the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；
    Registering unit, for being registered to the resident PLMN by the IMSI used.
  10. Terminal according to claim 9, it is characterised in that
    The receiving unit, is additionally operable to receive the information of roaming place of user's input；
    The determining unit, is additionally operable to according to the information of roaming place, and the IMSI that the terminal is determined is searched in preset roaming place and IMSI corresponding relation.
  11. A kind of terminal, it is characterised in that the terminal includes：
    Input block；
    Communication interface；
    Memory；And
    The processor coupled with the memory；
    The communication interface is used for：When terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place is received from the PLMN；
    The processor is used for：
    Obtain the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    According to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
    If the first IMSI and the IMSI determined that the terminal is being used are inconsistent, the first IMSI used is switched into twoth IMSI consistent with the IMSI determined；And
    Indicate that the terminal is registered to the resident PLMN by the 2nd IMSI.
  12. Terminal according to claim 11, it is characterised in that if the first IMSI that the terminal is being used is consistent with the IMSI determined,
    The processor is additionally operable to：The communication interface is called to be registered to the resident PLMN by the first IMSI.
  13. Terminal according to claim 11, it is characterised in that if the first IMSI and the IMSI determined that the terminal is being used are inconsistent,
    The processor is additionally operable to：Indicate that the terminal accesses the limited service that the PLMN of the roaming place is provided.
  14. A kind of terminal, it is characterised in that the terminal includes：
    Input block；
    Communication interface；
    Memory；And
    The processor coupled with the memory；
    The communication interface is used for：When terminal is resident in the public land mobile network PLMN of roaming place, the location area information of the roaming place is received from the PLMN；
    The processor is used for：
    Obtain the subscription data of the terminal, the subscription data each IMSI and corresponding relation in the position area contracted in multiple IMSI comprising the terminal；
    According to the location area information and the subscription data, it is determined that IMSI corresponding with the location area information；
    It is determined that the IMSI used is consistent with the IMSI determined；Wherein, the IMSI used is the terminal before the roaming place is reached, the IMSI for receiving the information of roaming place of user's input and being determined by the terminal；And
    Indicate that the terminal is registered to the resident PLMN by the IMSI used.
  15. Terminal according to claim 14, it is characterised in that
    The input block is used for：Receive the information of roaming place of user's input；
    The processor is additionally operable to：According to the information of roaming place, preset roaming place with The IMSI that the terminal is determined is searched in IMSI corresponding relation.
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