WO2016127343A1

WO2016127343A1 - Network registration method and terminal

Info

Publication number: WO2016127343A1
Application number: PCT/CN2015/072781
Authority: WO
Inventors: 姜印清; 柳晓见; 顾超武
Original assignee: 华为技术有限公司
Priority date: 2015-02-11
Filing date: 2015-02-11
Publication date: 2016-08-18
Also published as: CN106170996A

Abstract

Provided are a network registration method and a terminal, which relate to the field of communications, solve the problem in the prior art of excessively long time consumption when a terminal performs IMSI switching, and improve the utilization rate of network resources at the same time. The solution comprises: when a terminal resides in a PLMN of a roaming place, the terminal receives location area information about the roaming place from the PLMN; the terminal acquires subscription data of the terminal, the subscription data containing the correlation between each IMSI of a plurality of IMSIs of the terminal and a subscribed location area; according to the location area information and the subscription data, the terminal determines an IMSI corresponding to the location area information; if a first IMSI being used by the terminal is inconsistent with the determined IMSI, the terminal switches the first IMSI being used to a second IMSI consistent with the determined IMSI; and the terminal is registered to the resident PLMN by means of the second IMSI.

Description

Network registration method and terminal

Technical field

The present invention relates to the field of communications, and in particular, to a network registration method and a terminal.

Background technique

IMSI (International Mobile Subscriber Identification Number) is a logo that distinguishes mobile users. It is stored in the SIM card and can be used to distinguish valid information of mobile users. IMSI consists of MCC (Mobile Country Code), MNC (Mobile Network Code), and Mobile Subscriber Identification Number (MSIN). For example, China's MCC is 460, China Mobile's MNC is 00, then 460-00 is the communication code of China Mobile in China.

At present, the mobile terminal represented by the SVLTE (Simultaneous Voice and LTE) terminal can support multiple network standard handovers, that is, the SVLTE terminal can support multiple IMSI handovers, for example, simultaneous support for China. The IMSI1 of the LTE (Long Term Evolution) network and the IMSI2 applied to the UMTS (Universal Mobile Telecommunications System) network, the SVLTE terminal can acquire the roaming area when the terminal roams from China to the United States. The location area information is further switched from IMSI1 to IMSI2, and then the network registration in the United States is completed using the switched IMSI2.

However, in the existing protocol standard, the terminal repeatedly attempts to register the roaming network using the unswitched IMSI1 before switching from the local IMSI1 to the IMSI2 of the roaming place in the international roaming scenario, when the registration fails for a certain number of times ( For example, after 5 times, the location area information (for example, MCC information) of the roaming area is acquired, and the terminal switches from the local IMSI1 to the IMSI2 of the roaming place according to the location area information of the roaming place, and completes the network registration at the roaming place. Obviously, because the IMSI2 cannot be switched to the roaming place in time, the terminal repeatedly uses the incorrect IMSI to try to register the roaming network, which not only wastes network resources, but also prolongs the time for network registration in the international roaming scenario. When there are multiple network standards in the roaming place, the terminal needs to traverse all the network standards, and respectively perform vain and repetitive attempted registration, so that the time for the terminal to perform network registration is extended to several minutes or even ten minutes.

Summary of the invention

The embodiment of the invention provides a network registration method and a terminal, which solves the problem that the terminal takes too long to perform the IMSI handover in the prior art, which causes the network registration time to increase, and improves the utilization of the network resources.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, an embodiment of the present invention provides a network registration method, including:

When the terminal is camped on a PLMN (Public Land Mobile Network) of a roaming place, the terminal receives location area information of the roaming place from the PLMN;

The terminal acquires subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area;

Determining, by the terminal, the IMSI corresponding to the location area information according to the location area information and the subscription data;

If the first IMSI being used by the terminal is inconsistent with the determined IMSI,

The terminal switches the first IMSI being used to a second IMSI that is consistent with the determined IMSI;

The terminal registers with the resident PLMN through the second IMSI.

With reference to the first aspect, in a first possible implementation manner of the first aspect, if the first IMSI that the terminal is using is consistent with the determined IMSI, the method further includes:

The terminal registers with the resident PLMN through the first IMSI.

With reference to the first aspect, in a second possible implementation manner of the first aspect, if the first IMSI that the terminal is using is inconsistent with the determined IMSI, the method further includes:

The terminal accesses the restricted service provided by the PLMN of the roaming place.

In a second aspect, an embodiment of the present invention provides a network registration method, including:

When the terminal is camped on the public land mobile network PLMN of the roaming place, the terminal receives the location area information of the roaming place from the PLMN;

Determining, by the terminal, that the IMSI being used is consistent with the determined IMSI; wherein the IMSI being used is that the terminal receives the roaming information input by the user before the terminal arrives at the roaming place, and is determined by the terminal. IMSI;

The terminal registers with the resident PLMN through the IMSI being used.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before the terminal is in the roaming public land mobile network PLMN, the terminal further includes:

Receiving, by the terminal, roaming information input by a user;

The terminal searches for the IMSI determined by the terminal in the correspondence between the preset roaming area and the IMSI according to the roaming information.

In a third aspect, an embodiment of the present invention provides a terminal, including:

a receiving unit, configured to receive location area information of the roaming location from the PLMN when the terminal camps on the public land mobile network PLMN of the roaming place;

An acquiring unit, configured to acquire subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

a determining unit, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit and the subscription data in the receiving unit;

a switching unit, configured to switch the first IMSI being used to a second IMSI that is consistent with the determined IMSI if the first IMSI being used by the terminal is inconsistent with the IMSI determined in the determining unit;

a registration unit, configured to register with the resident PLMN by the second IMSI in the switching unit.

In conjunction with the third aspect, in a first possible implementation of the third aspect,

The registration unit is further configured to register, by the first IMSI, the resident PLMN if the first IMSI being used by the terminal is consistent with the IMSI determined by the determining unit.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the terminal further includes a restricted service registration unit, where

The restricted service registration unit is configured to access a restricted service provided by the PLMN of the roaming place if the first IMSI being used by the terminal is inconsistent with the determined IMSI.

In a fourth aspect, an embodiment of the present invention provides a terminal, including:

a determining unit, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit and subscription data in the receiving unit; and determine an IMSI being used and the determined IMSI is consistent; wherein the IMSI in use is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place;

a registration unit for registering with the resident PLMN by the IMSI being used.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect,

The receiving unit is further configured to receive roaming information input by the user;

The determining unit is further configured to search, according to the roaming location information, the IMSI determined by the terminal in a correspondence between the preset roaming area and the IMSI.

In a fifth aspect, an embodiment of the present invention provides a terminal, where the terminal includes:

Input unit

Communication Interface;

Memory;

a processor coupled to the memory;

The communication interface is configured to: when the terminal is camped on the public land mobile network PLMN of the roaming area, receive the location area information of the roaming place from the PLMN;

The processor is used to:

Obtaining subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

Determining an IMSI corresponding to the location area information according to the location area information and the subscription data;

Determining that the IMSI being used is consistent with the determined IMSI; wherein the IMSI in use is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place ;as well as

Instructing the terminal to register with the resident PLMN through the IMSI being used.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, if the first IMSI being used by the terminal is consistent with the determined IMSI,

The processor is further configured to: register, by the first IMSI, the communication interface to register to the resident PLMN.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, if the first IMSI that the terminal is using is inconsistent with the determined IMSI,

The processor is further configured to: indicate that the terminal accesses the restricted service provided by the PLMN of the roaming place.

In a sixth aspect, an embodiment of the present invention provides a terminal, where the terminal includes:

Input unit

Communication Interface;

Memory;

a processor coupled to the memory;

The processor is used to:

Obtaining subscription data of the terminal, where the subscription data includes multiple The correspondence between each IMSI in the IMSI and the contracted location area;

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect,

The input unit is configured to: receive roaming information input by a user;

The processor is further configured to: according to the roaming information, search for an IMSI determined by the terminal in a correspondence between a preset roaming area and an IMSI.

An embodiment of the present invention provides a network registration method and a terminal, where a terminal determines an IMSI corresponding to the location area information by acquiring its subscription data and location area information of a roaming place, where the subscription data includes each of a plurality of IMSIs of the terminal. Correspondence between the IMSI and the subscribed location area, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the terminal directly switches the first IMSI being used to the second IMSI that is consistent with the determined IMSI. IMSI, and use the switched second IMSI to register the roaming network, so that the terminal does not need to use the incorrect IMSI duplicate registration roaming network before the IMSI handover, as in the existing protocol, until the traversal terminal supports The network of all the standards, after discovering that all the networks of the system have failed to register, performs IMSI switching according to the location area information of the roaming place. It can be seen that the solution solves the problem that the terminal in the prior art is too long in performing IMSI switching. This leads to an increase in network registration time and increases the utilization of network resources.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below.

1 is a schematic flowchart 1 of a network registration method according to an embodiment of the present invention;

2 is a schematic flowchart 2 of a network registration method according to an embodiment of the present invention;

3 is a schematic flowchart 3 of a network registration method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of interaction of a network registration method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of hardware of a terminal according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram 1 of a terminal according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram 2 of a terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram 3 of a terminal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments.

Embodiment 1

An embodiment of the present invention provides a network registration method, as shown in FIG. 1, including:

101. When the terminal camps on the PLMN of the roaming place, the terminal receives the location area information of the roaming area from the PLMN.

102. The terminal acquires the subscription data, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and the signed location area.

103. The terminal determines, according to the location area information and the subscription data, an IMSI corresponding to the location area information.

104. If the first IMSI that the terminal is using is inconsistent with the determined IMSI, the terminal switches the first IMSI being used to the second IMSI that is consistent with the determined IMSI.

105. The terminal registers with the PLMN of the roaming place by using the second IMSI.

The terminal involved in the embodiment of the present invention may be a mobile terminal supporting multiple IMSIs. For example, the SVLTE terminal may support three IMSIs, namely, China Telecom's own IMSI1, and the IMSI1 may be used for accessing HRPD in China and other places. High Rate Packet Data, etc.; it can also support China Telecom's own IMSI2. IMSI2 can be used to access networks such as LTE in mainland China; in addition, it can support Vodafone (US carrier) IMSI3, which can be used to access G/W in roaming areas (ie 3G network/WCDMA network), also That is to say, the SVLTE terminal is a subscription terminal of the PLMN1 (Public Land Mobile Network) to which the IMSI1 belongs, and is also a subscription terminal of the PLMN2 and the PLMN3 to which the IMSI2 and the IMSI3 belong.

It can be seen that when such a terminal supporting multiple IMSIs roams to a contracted roaming place, especially in an international roaming scenario, the terminal can switch from the first IMSI currently being used to the IMSI of the roaming place, thus The IMSI of the roaming place can be used to register the network at the roaming place to ensure normal communication of the user.

In step 101, the terminal automatically searches for the network in the current environment periodically. When the terminal enters the roaming place or is turned on in the roaming place, the terminal may select the corresponding roaming ground according to the built-in policy of the terminal (for example, the network with the strongest selection signal). The PLMN is camped, and in order to register the corresponding network of the roaming place to ensure the normal communication of the terminal at the roaming place, the terminal needs to switch the illegal IMSI (ie, the first IMSI) being used to the IMSI (which is legally roaming) in time ( That is, the second IMSI), so that the terminal subsequently uses the legal second IMSI to register the network of the roaming place.

At this time, the terminal may receive the location area information of the roaming area from the resident PLMN. For example, the MCC (Mobile Country Code) of the current PLMN is 310 (ie, the current location of the terminal is located in the US area).

The location area (LA) is a set of a group of cells in the mobile communication system, and the role of the location area is to enable the mobile switch or the mobile switching center to know the location of the terminal in time.

The location area information may be used to indicate the location area of the terminal. For example, the location area information may refer to the MCC of the terminal. When the MCC is 460, it refers to the Chinese area. When the MCC is 310, it refers to the US area; the location area information may also be The LAC (Location Area Code) or the LAI (Location Area Identity) of the terminal, where the LAI is a combination of the MCC, the MNC, and the LAC.

Further, in step 102, the terminal may also obtain its subscription data, because Before using the terminal for communication, the user needs to complete the contract with each operator. For such terminals supporting multiple IMSIs, these terminals need to be contracted with different operators in different countries to ensure that the user roams to the roaming place. The contracted data of the terminal can acquire the service of the locality in time. Therefore, when the terminal is in the roaming of the PLMN, the terminal can also obtain the subscription data of the roaming place.

The subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and the signed location area. Further, the subscription data may further include each IMSI and the contracted different regional carriers. Corresponding relationship, as shown in Table 1, the terminal can support three IMSIs corresponding to three operators.

Table 1

IMSI1IMSI1	中国移动China Mobile
IMSI1IMSI1	中国移动China Mobile	IMSI2IMSI2	中国联通China Unicom
IMSI3IMSI3	美国沃达丰Vodafone	IMSI2IMSI2	中国联通China Unicom

Certainly, the subscription data may further include information such as service conditions and service scopes that the terminal and the roaming operator have contracted.

For example, IMSI2 supported by terminal A has signed SMS and call services with Vodafone operators in the United States. That is to say, terminal A can enjoy SMS and call services after completing local network registration using IMSI2 in the United States. Then, when terminal A roams. When the user arrives in the United States, the subscription data of the terminal A is obtained. For example, the subscription data is a list of IMSIs allowed by the Vodafone operator in the United States, and the terminal can determine the legality of the IMSI that the terminal A is using in the United States according to the IMSI list.

In step 103, after the terminal acquires the location area information and the subscription data of the roaming place, it can determine, according to the location area information of the roaming area and the subscription data, whether the first IMSI that the terminal is using is roaming, that is, it is determined to be obtained. The IMSI corresponding to the location area information is consistent with the first IMSI that the terminal is using.

Exemplarily, if the location area information of the roaming location received by the terminal from the resident PLMN indicates that the location of the terminal is in the United States, and the IMSI1 used by the terminal is the IMSI of the Chinese region with the MCC of 460, then according to the table In the contract data shown in FIG. 1, the IMSI3 corresponding to the location area information of the roaming area is inconsistent with the IMSI1 used by the terminal. That is, the IMSII that the terminal is using is illegal at the roaming place.

It should be noted that the first IMSI being used by the terminal involved in the embodiment of the present invention may specifically include two situations. When the terminal is powered on after entering the roaming place, the first IMSI may be the last used IMSI of the terminal. When the terminal is in the power-on state when the terminal enters the roaming state, the first IMSI is the IMSI that the terminal is using, which is not described in the following embodiments.

Further, after the step 103 is performed, if the first IMSI that the terminal is using is consistent with the determined IMSI, that is, the first IMSI that the terminal is using is roaming legally, the terminal can directly use the legal roaming place. The PLMN performs a location update operation and completes the network registration of the PLMN registering the roaming place.

Correspondingly, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, that is, the first IMSI being used by the terminal is illegally roaming, then, as described in step 104, at this time, the terminal is using the first An IMSI is switched to a second IMSI that is consistent with the determined IMSI.

Still following the example in step 103, according to the subscription data shown in Table 1, the IMSI3 corresponding to the location area information of the roaming area is inconsistent with the IMSI1 that the terminal is using, that is, the IMSI1 that the terminal is using is illegal at the roaming place. Therefore, the terminal instructs the card module in the terminal to switch the IMSI1 that the terminal is using to the IMSI3 corresponding to the location area information of the roaming place, so that the terminal completes the network registration process of the roaming place by using the switched IMSI3.

In addition, if the first IMSI that the terminal is using is inconsistent with the determined IMSI, the terminal may also access the limited service provided by the PLMN of the roaming place when performing step 104, so that the terminal can guarantee the user while switching the IMSI. Use a restricted service in a roaming area to conduct services such as emergency calls.

Of course, in the embodiment of the present invention, the method for determining, by the terminal, whether the first IMSI being used in the roaming place is legal according to the subscription data is applicable not only to the scenario in which the terminal supporting multiple IMSIs performs IMSI handover, but also performs location update for any terminal. The method can be used to determine the legality of the first IMSI that the terminal is using before the operation, and the terminal initiates the location update operation only when the first IMSI is a legal IMSI. To complete the network registration of the terminal in the currently camped network, once the first IMSI is an illegal IMSI, the terminal registers the restricted service of the resident network, thus avoiding the attempted registration of the network by the terminal in the prior art using the illegal IMSI. The problem of slowing down the network registration speed can also save network resources.

In step 105, after the terminal switches the current first IMSI to the second IMSI that is roaming legally, the terminal can use the switched IMSI because the second IMSI after the handover is a legal IMSI supported by the roaming network. The second IMSI initiates a location update operation to complete the network registration of the PLMN at the roaming place.

In addition, the embodiment of the present invention further provides a network registration method. Specifically, as shown in FIG. 2, the terminal may further perform steps 100 to 300 before performing steps 101 to 103.

100. The terminal receives the roaming information input by the user.

200. The terminal searches for the IMSI corresponding to the roaming location information in the corresponding relationship between the preset roaming area and the IMSI according to the roaming information.

300. Before the terminal is shut down, the terminal switches the IMSI being used to the IMSI corresponding to the roaming information in step 200.

In this way, when the terminal arrives at the roaming location according to the roaming information input by the user, the foregoing steps 101 to 103 may be continued until the terminal determines the IMSI corresponding to the location area information according to the location area information and the subscription data, at this time, In step 300, the terminal has switched the IMSI being used to the IMSI corresponding to the roaming information in step 200. Therefore, the first IMSI that the terminal is using when the roaming PLMN camps is the roaming place in step 200. The IMSI corresponding to the information, so that the terminal determines that the first IMSI being used is consistent with the determined IMSI, and does not need to switch the IMSI being used, and can directly register to the roaming area through the IMSI corresponding to the roaming information. PLMN.

An embodiment of the present invention provides a network registration method, in which a terminal determines an IMSI corresponding to the location area information by acquiring its subscription data and location area information of a roaming place, where the subscription data includes each IMSI of the plurality of IMSIs of the terminal. Corresponding relationship with the contracted location area, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the terminal directly switches the first IMSI being used to the determined IMSI. Consistent second IMSI, and using the switched second IMSI to register the roaming network, so that the terminal does not need to use the incorrect IMSI duplicate registration roaming network before performing the IMSI handover, as in the existing protocol, until After the network of all the standards supported by the terminal is traversed, it is found that all the networks of the system fail to register, and then the IMSI handover is performed according to the location area information of the roaming place. It can be seen that the solution solves the problem that the terminal in the prior art performs the IMSI handover. The problem of excessive network registration time is increased, and the utilization of network resources is improved.

Embodiment 2

An embodiment of the present invention provides a network registration method, as shown in FIG. 3, including:

201. The terminal determines whether the roaming location information input by the user is received.

202a. If receiving the roaming information input by the user, the terminal searches for the IMSI corresponding to the roaming location information in the correspondence between the preset roaming area and the IMSI according to the roaming information.

203a. Before the terminal is shut down, the terminal switches the IMSI being used to the IMSI corresponding to the roaming information in step 202a.

204a. When the terminal is powered on and roaming at the roaming PLMN, the location area information of the roaming area is received from the PLMN.

205a. The terminal acquires the subscription data, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and the signed location area.

206. The terminal determines, according to the location area information and the subscription data, the IMSI corresponding to the location area information, and determines that the IMSI corresponding to the location area information is the IMSI corresponding to the roaming location information in step 202a.

207a. The terminal registers with the PLMN of the roaming place by using the IMSI corresponding to the roaming information.

202b. If the roaming information input by the user is not received, when the terminal camps at the PLMN of the roaming, the terminal receives the location area information of the roaming area from the PLMN.

203b. The terminal acquires the subscription data, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and the signed location area.

204b. The terminal determines, according to the location area information and the subscription data, the location area information. Corresponding IMSI.

205b. If the first IMSI that the terminal is using is inconsistent with the determined IMSI, the terminal switches the first IMSI being used to the second IMSI that is consistent with the determined IMSI.

206b. The terminal accesses the restricted service provided by the PLMN of the roaming place.

207b. The terminal registers with the PLMN of the roaming place by using the second IMSI.

208b. If the first IMSI that the terminal is using is consistent with the determined IMSI, the terminal registers with the PLMN of the roaming place through the first IMSI.

In step 201, before the user travels to the roaming place, the roaming information of the roaming place to be reached may be input in the terminal. For example, the user may input the roaming place information of “roaming to the United States” in the terminal, if the terminal receives To the roaming location information input by the user, step 202 is performed; if the terminal does not receive the roaming location information input by the user, steps 203 to 209 are performed.

In step 202a, if the terminal receives the roaming location information input by the user, the terminal may search for the IMSI corresponding to the roaming location information in the corresponding relationship between the preset roaming location and the IMSI according to the roaming location information.

In step 203a, the terminal switches the IMSI in use to the IMSI corresponding to the roaming information in step 202 before the shutdown, to prevent the terminal from attempting to register all the terminals that can be searched by using the unswitched incorrect IMSI in the roaming manner. Time spent on the network.

For example, if the user needs to travel from Beijing to Washington, USA, the user can directly input the roaming information of Washington, DC in the terminal, and the terminal presets the roaming information and the IMSI of the terminal according to the roaming information of the Washington, DC input by the user. In the correspondence list, it is determined that the IMSI of Washington, USA is the IMSI2 supported by the terminal, so that the terminal switches the first IMSI being used to the second IMSI of the roaming place before the terminal is shut down to the roaming place.

It can be seen that the terminal completes the IMSI handover process before roaming to the roaming place. When the terminal arrives at the roaming place according to the roaming information input by the user, the terminal can directly complete the network registration of the roaming place by using the second IMSI after the handover. Greatly reduced the terminal in The network registration time of the roaming place.

After the step 203a is performed, the terminal may continue to perform the foregoing steps 204a to 207a until the terminal registers to the PLMN of the roaming place by using the IMSI corresponding to the roaming information. For details, refer to the related description of the steps 100-300 in the first embodiment. Therefore, it will not be repeated here.

In step 202b, if the terminal does not receive the roaming location information input by the user, the terminal may receive the location area information of the roaming location from the resident PLMN when the terminal is camped on the PLMN of the roaming, the step may be See step 101 in the first embodiment, and therefore no further details are provided herein.

In step 203b, when the terminal is in the roaming PLMN, the terminal may also obtain its subscription data, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and the signed location area.

Specifically, the subscription data may be preset in the terminal, or may be stored in the network side device. When the terminal is in the roaming PLMN, the terminal acquires the subscription data, and determines, according to the subscription data, the current usage of the terminal. The legality of an IMSI.

It should be noted that the subscription data may further include an IMSI list that is allowed to be used by the PLMN of the roaming place, so that when the terminal camps on the roaming PLMN, the terminal acquires the IMSI list from the PLMN, at this time, if The first IMSI currently used by the terminal is in the IMSI list, indicating that the first IMSI is a valid IMSI in the PLMN. If the first IMSI currently used by the terminal is not in the IMSI list, the first IMSI is in the PLMN. If the IMSI is not legal, the terminal may determine, according to the IMSI list and the location area information of the roaming location, the second IMSI that is legal in the PLMN.

In step 204b, after the terminal acquires the location area information and the subscription data of the roaming place, it can determine, according to the location area information of the roaming area and the subscription data, whether the first IMSI that the terminal is using is roaming, that is, it is determined to be obtained. The IMSI corresponding to the location area information is consistent with the first IMSI that the terminal is using. For the step, refer to step 103 in the first embodiment, and therefore no further details are provided herein.

Further, after performing step 204b, if the first IMSI that the terminal is using does not match the determined IMSI, steps 205b to 207b are performed, if the terminal The first IMSI being used is consistent with the determined IMSI, and step 28b is performed.

In step 205b, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, that is, the first IMSI being used by the terminal is not roaming, the terminal may switch the first IMSI being used to and determine The IMSI is consistent with the second IMSI.

In step 206b, when performing step 205b, the terminal may also access the restricted service provided by the PLMN of the roaming place, so that the terminal can ensure that the user uses the limited service of the roaming place to perform emergency call and the like while switching the IMSI. .

For example, referring to FIG. 4 and the first embodiment, a registration module and a mobility management module are provided in the terminal. After the terminal obtains the subscription data and the location area information of the roaming location, the mobility management module uses the terminal for the terminal. The validity of an IMSI in the roaming area is determined, that is, whether the first IMSI being used by the terminal is consistent with the determined IMSI. If the first IMSI is inconsistent with the determined IMSI, the first IMSI being used by the terminal is roaming. If the location is not legal, then the terminal can switch the first IMSI being used to the second IMSI that is consistent with the determined IMSI while registering the restricted service of the roaming place, so that the terminal can use the switched first The second IMSI registers the network of the roaming area with the network device.

In the existing agreement, you can still refer to Figure 4. When the terminal roams from China to the roaming area, it will conduct a network search. At the same time, the registration module will try to register the network with the various network standards that have been used, such as China. (MCC is 460) LTE network, China's GSM network, and China's UMTS network, etc. However, roaming does not support these networks in China, so when these tentative registrations fail, the terminal's The registration module will also attempt to register a known network that has been searched in a roaming place (eg, the US area, MCC 310), since the first IMSI that the terminal is using is an illegal IMSI, when attempting to register the already searched in the roaming place After the network fails, the terminal registers the restricted service of the roaming place and completes the subsequent IMSI handover procedure. Finally, the second IMSI after the handover is used to register the network of the roaming area with the network device.

It can be seen that embodiments of the present invention pass the first IMSI that is being used by the terminal. Judging the legitimacy of the roaming place can realize a fast IMSI handover process and improve the utilization of network resources.

In step 207b, when the terminal instructs the card module to switch the current first IMSI to the second IMSI that is roaming legally, the terminal can use the handover because the second IMSI after the handover is a legal IMSI supported by the roaming network. The second IMSI performs a location update operation and registers the PLMN of the roaming place to ensure normal communication of the user at the roaming place.

It should be further noted that if the terminal has been shut down before roaming the registration network, that is, the terminal needs to roam and boot when roaming the network, in this case, the terminal can be divided into two processes, one is SIM. Before the card is run and after the SIM card is running, the IMSI switching method (ie, steps 202b to 206b) provided by the embodiment of the present invention can be applied to the SIM card before running, and can also be applied after the SIM card is run.

Preferably, if the terminal roams and roams in a roaming manner, the restricted service of the roaming place can be preferentially executed in steps 202b to 206b before the SIM card of the terminal is operated, and the legal second IMSI switching of the roaming place is completed, so that After the SIM card of the terminal is operated, there is no need to verify the IMSI validity of the SIM card, and the network of the roaming place can be directly registered according to the legal second IMSI, thereby reducing the startup time of the roaming network and reducing the registration time of the roaming network.

In addition, after performing step 204b, if the first IMSI being used by the terminal is consistent with the determined IMSI, step 208b is performed.

Specifically, in step 208b, if the first IMSI being used by the terminal is consistent with the determined IMSI, that is, the first IMSI being used by the terminal is roamingly legal, the terminal may directly use the PLMN of the legal roaming place. The location update operation, and completes the network registration of the PLMN registered in the roaming place.

Embodiment 3

FIG. 5 is a schematic diagram of the hardware of a terminal of the present invention. The mobile terminal provided by the embodiment of the present invention may be used to implement the method implemented by the embodiments of the present invention shown in FIG. 1 to FIG. 4, for convenience of description. Only parts related to the embodiments of the present invention are shown, and the specific technical details are not disclosed. Please refer to the embodiments of the present invention shown in FIGS.

The terminal may be a terminal device such as a mobile phone, a tablet computer, a notebook computer, a UMPC (Ultra-mobile Personal Computer), a netbook, a PDA (Personal Digital Assistant), and the like. For illustrative purposes, FIG. 5 is a block diagram showing a portion of the structure of a handset associated with various embodiments of the present invention.

Optionally, the mobile phone end can be a mobile phone supporting multiple IMSI handovers. For example, the SVLTE mobile phone can support three IMSIs, namely China Telecom own IMSI1, and the IMSI1 can be used for accessing a network such as HRPD in mainland China; It can also support China Telecom's own IMSI2, which can be used to access LTE and other networks in mainland China; in addition, it can also support Vodafone (US carrier) IMSI3, which can be used to access G/W networks in roaming areas. (ie 3G network/WCDMA network), that is to say, this SVLTE terminal is not only the subscription mobile phone of the network to which IMSI1 belongs, but also the subscription mobile phone of the network to which IMSI2 and IMSI3 belong.

As shown in FIG. 5, the mobile phone includes components such as a communication interface 11, a memory 12, a processor 13, and an input unit 14, and these components can be connected through a bus 15. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 5 does not constitute a mobile phone. The definition may include more or fewer components than those illustrated, or some components may be combined, or different component arrangements.

The following describes the components of the mobile phone in detail with reference to FIG. 5:

The communication interface 11 can be used for receiving and transmitting signals during the transmission and reception of information or during a call. Specifically, after receiving the downlink information of the base station, the processing is processed by the processor 03. In addition, the uplink data is sent to the base station. Generally, the communication interface can be implemented by an optical communication interface, an electrical communication interface, a wireless communication interface, or any combination thereof. Exemplary communication interfaces include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, and a LNA (low noise). Amplifier, a low noise amplifier, a duplexer, etc., for example, the communication interface 11 can be an RF (Radio Frequency) circuit. In addition, the communication interface 11 can also communicate with the network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (global system of mobile communication), GPRS (general packet radio service), CDMA (code division multiple access) , code division multiple access), WCDMA (wideband code division multiple access), LTE (long term evolution), e-mail, SMS (short messaging service), and the like.

The memory 12 can be used to store software programs and modules, and the processor 13 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 12. The memory 12 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, image data, phone book, etc.). Moreover, memory 12 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 13 is a control center of the mobile phone, and connects various parts of the entire mobile phone by using various interfaces and lines, by running or executing a software program stored in the memory 12 and / or module, as well as calling data stored in the memory 12, performing various functions of the mobile phone and processing data, thereby performing overall monitoring of the mobile phone. Optionally, the processor 13 may include one or more processing units; preferably, the processor 13 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 13.

The input unit 14 is operable to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the handset. In particular, input unit 14 may include a touch screen as well as other input devices. The touch screen, also referred to as a touch panel, can collect touch operations on or near the user (such as the operation of the user using a finger, a stylus, or the like on the touch screen or near the touch screen), and according to The preset program drives the corresponding connection device. Optionally, the touch screen may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 13 is provided and can receive commands from the processor 13 and execute them. In addition, touch screens can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch screen, the input unit 14 may also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, power switch buttons, etc.), trackballs, mice, joysticks, and the like.

In an embodiment of the present invention, the communication interface 01 is configured to receive the location area information of the roaming location from the PLMN and store it in the memory when the terminal is camped on the public land mobile network PLMN of the roaming place. And obtaining the subscription data of the terminal and storing the data to the memory 02, where the subscription data includes a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area; the processor 01 is configured to: Determining an IMSI corresponding to the location area information according to the location area information and the subscription data; and if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the first IMSI to be used Switching to be consistent with the determined IMSI The second IMSI; the processor 01 is further configured to invoke the communication interface 01 to register to the resident PLMN according to the second IMSI.

Further, the processor 01 is further configured to: if the first IMSI being used by the terminal is consistent with the determined IMSI, register, by using the first IMSI, the communication interface 01 to register to the resident PLMN.

Further, the processor 01 is further configured to: if the first IMSI being used by the terminal is inconsistent with the determined IMSI, accessing, by the communication interface 01, the PLMN provided by the roaming place Limited service.

In another embodiment of the present invention, the communication interface 11 is configured to receive location area information of the roaming location from the PLMN when the terminal is camped on the public land mobile network PLMN of the roaming place and store the a memory 12; and acquiring subscription data of the terminal and storing the data to the memory 12, the subscription data including a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area;

The processor 13 is configured to determine an IMSI corresponding to the location area information according to the location area information and the subscription data, and determine that the IMSI being used is consistent with the determined IMSI; wherein the in use is in use The IMSI is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place;

The processor 13 is further configured to invoke the communication interface 11 to register to the resident PLMN by using the IMSI in use.

Further, the input unit 14 is configured to receive roaming ground information input by the user and store the information to the memory 12;

The processor 13 is further configured to search, according to the roaming information, the IMSI determined by the terminal in a correspondence between a roaming place and an IMSI preset in the memory 12.

An embodiment of the present invention provides a terminal, where a terminal determines an IMSI corresponding to the location area information by acquiring location data of the subscription data and the location information of the roaming area, where the subscription data includes each IMSI of the multiple IMSIs of the terminal. Corresponding relationship between the signed location areas, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the terminal directly switches the first IMSI being used to the second IMID that is consistent with the determined IMSI. IMSI, and use the switched second IMSI to register the roaming network, so that the terminal does not need to use the incorrect IMSI repeated registration roaming network before the IMSI handover, as in the prior art, until the traversal terminal supports The network of all the standards, after discovering that all the networks of the system have failed to register, performs IMSI switching according to the location area information of the roaming place. It can be seen that the solution solves the problem that the terminal in the prior art is too long in performing IMSI switching. This leads to an increase in network registration time and increases the utilization of network resources.

Embodiment 4

An embodiment of the present invention provides a terminal, as shown in FIG. 6, including:

The receiving unit 21 is configured to receive location area information of the roaming place from the PLMN when the terminal camps on the public land mobile network PLMN of the roaming place;

The obtaining unit 22 is configured to acquire subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

a determining unit 23, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit 21 and the subscription data in the receiving unit 22;

The switching unit 24 is configured to switch the first IMSI being used to the second IMSI that is consistent with the determined IMSI if the first IMSI being used by the terminal is inconsistent with the IMSI determined in the determining unit 23 ;

The registration unit 25 is configured to register with the resident PLMN by the second IMSI in the switching unit 24.

Further, the registration unit 25 is further configured to register, by the first IMSI, the resident PLMN, if the first IMSI being used by the terminal is consistent with the IMSI determined by the determining unit.

Further, as shown in FIG. 7, the terminal further includes a restricted service registration unit 26, where

The restricted service registration unit 26 is configured to access a restricted service provided by the PLMN of the roaming place if the first IMSI being used by the terminal is inconsistent with the determined IMSI.

An embodiment of the present invention provides a terminal, as shown in FIG. 8, including:

The receiving unit 31 is configured to receive location area information of the roaming place from the PLMN when the terminal camps on the public land mobile network PLMN of the roaming place;

The obtaining unit 32 is configured to acquire subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area;

a determining unit 33, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit 31 and subscription data in the receiving unit 32; and determine an IMSI in use and the The determined IMSI is consistent; wherein the IMSI in use is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place;

The registration unit 34 is configured to register with the resident PLMN through the IMSI being used.

Further, the receiving unit 31 is further configured to receive roaming information input by the user;

The determining unit 33 is further configured to search, according to the roaming information, the IMSI determined by the terminal in a correspondence between the preset roaming area and the IMSI.

An embodiment of the present invention provides a terminal, where a terminal determines an IMSI corresponding to the location area information by acquiring location data of the subscription data and the location information of the roaming area, where the subscription data includes each IMSI of the multiple IMSIs of the terminal. Corresponding relationship of the signed location area, if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the terminal directly switches the first IMSI being used to the second IMSI that is consistent with the determined IMSI, and uses The switched second IMSI registers the roaming network, so that the terminal does not need to use the incorrect IMSI repeated registration roaming network before performing the IMSI handover, as in the prior art, until the traversal of all the standards supported by the terminal After the network is found to have failed in the registration of all the standards, the IMSI is switched according to the location information of the roaming area. It can be seen that the solution solves the problem that the terminal in the prior art is too long to perform the IMSI handover. The problem of increased time, while increasing the utilization of network resources.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention It is not limited thereto, and any one skilled in the art can easily conceive changes or substitutions within the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A network registration method, comprising:

When the terminal is camped on the public land mobile network PLMN of the roaming place, the terminal receives the location area information of the roaming place from the PLMN;

The terminal acquires subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area;

Determining, by the terminal, the IMSI corresponding to the location area information according to the location area information and the subscription data;

If the first IMSI being used by the terminal is inconsistent with the determined IMSI,

The terminal switches the first IMSI being used to a second IMSI that is consistent with the determined IMSI;

The terminal registers with the resident PLMN through the second IMSI.
The method according to claim 1, wherein if the first IMSI being used by the terminal is consistent with the determined IMSI, the method further comprises:

The terminal registers with the resident PLMN through the first IMSI.
The method according to claim 1, wherein if the first IMSI being used by the terminal is inconsistent with the determined IMSI, the method further comprises:

The terminal accesses the restricted service provided by the PLMN of the roaming place.
A network registration method, comprising:

When the terminal is camped on the public land mobile network PLMN of the roaming place, the terminal receives the location area information of the roaming place from the PLMN;

The terminal acquires subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the plurality of IMSIs of the terminal and a signed location area;

Determining, by the terminal, the IMSI corresponding to the location area information according to the location area information and the subscription data;

Determining, by the terminal, that the IMSI being used is consistent with the determined IMSI; wherein the IMSI being used is, by the terminal, receiving roaming information input by a user before the terminal arrives at the roaming place, by the terminal Determined IMSI;

The terminal registers with the resident PLMN through the IMSI being used.
The method according to claim 4, further comprising: before the terminal is in the roaming public land mobile network PLMN, further comprising:

Receiving, by the terminal, roaming information input by a user;

The terminal searches for the IMSI determined by the terminal in the correspondence between the preset roaming area and the IMSI according to the roaming information.
A terminal, comprising:

a receiving unit, configured to receive location area information of the roaming location from the PLMN when the terminal camps on the public land mobile network PLMN of the roaming place;

An acquiring unit, configured to acquire subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

a determining unit, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit and the subscription data in the receiving unit;

a switching unit, configured to switch the first IMSI being used to a second IMSI that is consistent with the determined IMSI if the first IMSI being used by the terminal is inconsistent with the IMSI determined in the determining unit;

a registration unit, configured to register with the resident PLMN by the second IMSI in the switching unit.
The terminal of claim 6 wherein:

The registration unit is further configured to register, by the first IMSI, the resident PLMN if the first IMSI being used by the terminal is consistent with the IMSI determined by the determining unit.
The terminal according to claim 6, wherein the terminal further comprises a restricted service registration unit, wherein

The restricted service registration unit is configured to access a restricted service provided by the PLMN of the roaming place if the first IMSI being used by the terminal is inconsistent with the determined IMSI.
A terminal, comprising:

a receiving unit for camping on a public land mobile network PLMN where the terminal is roaming Receiving, by the PLMN, location area information of the roaming place;

An acquiring unit, configured to acquire subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

a determining unit, configured to determine an IMSI corresponding to the location area information according to the location area information in the receiving unit and subscription data in the receiving unit; and determine an IMSI being used and the determined IMSI is consistent; wherein the IMSI in use is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place;

a registration unit for registering with the resident PLMN by the IMSI being used.
The terminal according to claim 9, wherein

The receiving unit is further configured to receive roaming information input by the user;

The determining unit is further configured to search, according to the roaming location information, the IMSI determined by the terminal in a correspondence between the preset roaming area and the IMSI.
A terminal, wherein the terminal comprises:

Input unit

Communication Interface;

Memory;

a processor coupled to the memory;

The communication interface is configured to: when the terminal is camped on the public land mobile network PLMN of the roaming area, receive the location area information of the roaming place from the PLMN;

The processor is used to:

Obtaining subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

Determining an IMSI corresponding to the location area information according to the location area information and the subscription data;

And if the first IMSI being used by the terminal is inconsistent with the determined IMSI, switching the first IMSI being used to a second IMSI that is consistent with the determined IMSI;

Instructing the terminal to register with the resident PLMN through the second IMSI.
The terminal according to claim 11, wherein if the first IMSI being used by the terminal is consistent with the determined IMSI,

The processor is further configured to: register, by the first IMSI, the communication interface to register to the resident PLMN.
The terminal according to claim 11, wherein if the first IMSI being used by the terminal is inconsistent with the determined IMSI,

The processor is further configured to: indicate that the terminal accesses the restricted service provided by the PLMN of the roaming place.
A terminal, wherein the terminal comprises:

Input unit

Communication Interface;

Memory;

a processor coupled to the memory;

The communication interface is configured to: when the terminal is camped on the public land mobile network PLMN of the roaming area, receive the location area information of the roaming place from the PLMN;

The processor is used to:

Obtaining subscription data of the terminal, where the subscription data includes a correspondence between each IMSI of the multiple IMSIs of the terminal and a signed location area;

Determining an IMSI corresponding to the location area information according to the location area information and the subscription data;

Determining that the IMSI being used is consistent with the determined IMSI; wherein the IMSI in use is an IMSI determined by the terminal to receive roaming information input by a user before the terminal arrives at the roaming place ;as well as

Instructing the terminal to register with the resident PLMN through the IMSI being used.
The terminal according to claim 14, wherein

The input unit is configured to: receive roaming information input by a user;

The processor is further configured to: according to the roaming information, in a preset roaming place The IMSI is searched for the IMSI determined by the terminal.