KR20100068692A - System and method for providing service using imsi(international mobile subscriber identity) - Google Patents

Abstract

PURPOSE: A service providing system using IMSI(International Mobile Subscriber Identity) and method thereof are provided to improve convenience of a user by providing service especially distinguished according to each IMSI when the system uses different IMSI each other. CONSTITUTION: A subscriber information server(180) stores and receives additional service information about additional service requested by IMSI from a mobile terminal(100) storing a plurality of IMSIs. A switch(170) determines providing of requested additional service by receiving additional service information from a subscriber information server, when the mobile terminal requests the additional service with the IMSI. When supplying of the additional service is impossible, a service unavailable message is transmitted to the mobile terminal.

Description

System and method for providing service using IMS {International Mobile Subscriber Identity (IMSI)}

The present invention relates to a service providing system and method using IMSI, and more particularly to a service providing system and method using IMSI that can utilize a plurality of IMSI.

In general, the Universal Subscriber Identity Module Card (hereinafter referred to as the "USIM card") is an asynchronous third generation mobile communication-for example, a removable smart card that is inserted into a WCDMA terminal. Various functions such as overseas roaming and e-commerce can be provided as a single card.

That is, unlike the SIM card used in GSM, which is asynchronous second generation mobile communication, merely carries subscriber information, the USIM card is not only a function of the existing SIM, but also a transportation card, a credit card, user setting information-where the user setting information is a phone book. It can provide a universal IC card function that can be provided in a modular manner, such as (Phone Book), shortcut keys, restriction keys, and the like.

The security structure provided by the USIM card can be divided into authentication and access control. Here, authentication may be divided into terminal authentication and subscriber authentication, and access control means access control of a corresponding file according to card holder verification 1 (CHV1), card holder verification 1 (CHV2), and ADM values.

In this case, the authentication is a technique for determining whether or not a fair use right is granted to a specific medium and a user in a wireless network environment.

The authentication function medium in WCDMA is a USIM card in a mobile station (MS) and an authentication center (AuC) provided in a system. Therefore, for the subscriber authentication, the key value required for authentication must exist in the USIM card and the authentication center.

Hereinafter, a brief look at the authentication procedure defined in 3GPP (3 ^rd Generation Partnership Project) standard.

First, the mobile terminal reads the International Mobile Subscriber Identity (hereinafter referred to as IMSI) previously stored in the USIM card, and transmits a predetermined control signal including the IMSI read out for subscriber authentication to the authentication center. send.

The authentication center generates a subscriber authentication key and a random number corresponding to the received IMSI and checks whether the subscriber has access to the network by using the generated subscriber authentication key and random number.

In general, a USIM card detachably mounted to a mobile terminal is maintained with one IMSI and a Mobile Subscriber ISDN Number (MSISDN) corresponding to the IMSI. Here, MSISDN is a public reference for subscribers and means a general mobile phone number.

According to the 3GPP standard, one IMSI may be assigned up to four MSISDNs, but this is a telephone number assigned according to the application used using the IMSI.

For example, the MSISDN corresponding to the specific IMSI may have a first MSISDN for general telephone communication, a second MSISDN for FAX communication, and the like.

In addition, a method of storing and managing a plurality of different IMSIs and MSISDNs in one USIM card has been proposed.

However, in the related art, a method of distinguishing a plurality of IMSIs and providing a service has not been provided.

The present invention is to solve the above problems of the prior art, the purpose of providing a service by distinguishing each IMSI when using a plurality of different IMSI.

According to an aspect of the present invention, a service providing system using an International Mobile Subscriber Identity (IMSI) is disclosed.

According to an embodiment of the present invention, a service providing system using an IMSI includes a subscriber information server storing additional service information regarding additional services applied for each of the plurality of IMSIs from a mobile terminal storing a plurality of IMSIs and the mobile terminal. When the additional service is requested using any one of the plurality of IMSI, the exchanger receives additional service information corresponding to the received IMSI from the subscriber information server and determines whether to provide the requested additional service to the mobile terminal. It includes.

According to another aspect of the present invention, a method for providing a service using IMSI in a mobile communication system including a subscriber information server and a switch is disclosed.

In a method of providing a service using an IMSI according to an embodiment of the present invention, the method may further comprise storing additional service information about an additional service applied for a plurality of IMSIs from a mobile terminal in a subscriber information server, wherein the mobile terminal selects one of the plurality of IMSIs. Requesting additional service using one, requesting additional service information corresponding to the received IMSI to the subscriber information server and using the additional service information received from the subscriber information server to the mobile terminal; Determining whether to provide the supplementary service.

The present invention has the effect of providing a service distinguished for each IMSI when using a plurality of different IMSI.

In addition, the present invention has an effect that can be used by the user to separate the service for each IMSI to increase the convenience of the user.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating the structure of a UE in a UMTS system.

In the 3GPP standard, a mobile terminal is called a user equipment (UE), and a general base station is defined and used as a NodeB.

In the following description, for convenience of description, a mobile terminal and a base station will be referred to as a UE and a base station, respectively.

Referring to FIG. 1, a user equipment (UE) 100 may be largely classified into a mobile equipment 110 (ME) and a UMTS subscriber identity module (USIM) 120 according to a function.

In general, the USIM 120 may be physically separated from the ME 110, so a standard interface Cu is defined between the two.

Here, the ME 110 includes a terminal equipment (TE) 130, a network termination (NT) 112, and a radio termination (RT) 114, and the NT 112 and the RT ( 114 may transmit and receive information via the Tu interface.

As shown in FIG. 1, NT 112 may communicate with USIM 120 and TE 130, respectively, via a Cu interface and an R interface.

In the UMTS, an interface of a radio section is called a Uu interface, and the RT 114 may transmit a radio signal to the NodeB 140 or receive a radio signal transmitted by the NodeB 140 through the Uu interface.

The USIM 120 is a component for storing unique information of a user, and is generally in the form of an integrated card (IC) card that is physically detachably mounted on one side of the UE 100. The USIM 120 may provide various applications, where various applications include a banking function, a phonebook function, a traffic function, and the like, and a communication function corresponding to various wireless access technologies. For this reason, USIM 120 is often referred to as Universal Integrated Circuit (UICC).

In general, the content included in the USIM 120 is supplied by a service provider. In addition, the USIM 120 may include unique information of a subscriber stored in a home location register (HLR) of a core network.

In the following description, basic information that may be stored in the USIM 120 will be described in detail.

First, the USIM 120 may maintain encryption algorithms, international mobile subscriber identity (IMSI), access class information, and the like, which are basic information set by a USIM manufacturer and a service provider.

In addition, the USIM 120 includes location identifiers, for example, a location area identity, a routing area identity, and the like, as information for providing mobility of a terminal, a temporary mobile subscriber identity (TMSI), and encryption parameters. It can also store information about the types of services that can be accessed through the corresponding USIM.

In particular, the USIM 120 may maintain its own execution program for executing various applications, and may store user data such as short messages, dialing information, and phonebooks that are personally used by the user.

The ME 110 refers to a wireless terminal in charge of actual communication with a radio access network, and is divided into a mobile terminal (MT) 115 and a TE 130.

The MT 115 has a wireless access protocol for communicating with a mobile communication system over a wireless section. In terms of the UE 100, the MT 115 can communicate only in the UTRAN region using the same radio access technology as the actual physical terminal device.

TE 130 provides the control functions necessary for the operation of the radio access protocol. For example, TE 130 may provide an environment in which a wireless terminal connected to a laptop computer may operate like a wireless modem. The TE 130 also controls the termination of the terminal using a Modem Control Command Set, such as AT Command defined by ITU-T, where the termination of the terminal includes NT 112 and RT 114. can do.

2 is a UICC file structure supporting a plurality of USIM applications.

Since the application and file structure according to the general UICC is a well-known technology, a detailed description thereof will be omitted, and only a part related to the technical idea of the present invention will be described.

Referring to FIG. 2, in order to provide a plurality of USIM applications in one UICC, the EFDIR 210 may include information about two USIM application dedicated files that provide the same application service.

Hereinafter, for convenience of description, the two USIM application dedicated files included in the EFDIR 210 will be referred to as 'ADFUSIM1 220' and 'ADFUSIM2 230', respectively.

Here, the ADFUSIM1 220 and the ADFUSIM2 230 may be selected using information included in the EFDIR 210 and an application identifier (hereinafter, referred to as 'AID') uniquely allocated to each application file. .

If no information exists in the EFDIR 210 or there is no USIM application, the ME 110 may select the GSM application-only file 240.

Generally, the USIM application-specific file stores an element file for storing International Mobile Subscriber Identity (IMSI), hereinafter referred to as 'EFIMSI', and a Mobile Subscriber ISDN Number. Element file, hereinafter referred to as 'EFMSISDN'.

In particular, the EFIMSI and EFMSISDN constituting the ADFUSIM1 320 and the ADFUSIM2 330 are preferably set to different values.

For example, the UICC may be loaded with two USIM application files having different IMSI and MSISDNs, so that the terminal user may optionally select the desired USIM application and the desired service with the telephone number corresponding to the selected USIM application. Can be provided.

In the above description, the EFDIR 310 maintains information on a plurality of USIM application-specific files and makes it selectable by a user, thereby describing a method of using a plurality of telephone numbers using a single terminal. The present invention is not limited to the above and may be applied to other applications, including, for example, applications related to Wibro, GSM, CDMA, and the like.

3 is a block diagram of a service providing system using IMSI according to an embodiment of the present invention. In more detail, FIG. 3 is a diagram illustrating a network configuration of a mobile communication system for providing a service using IMSI.

3, the service providing system using the IMSI according to the present invention is a mobile terminal 100, base station 140, base station controller 160, switchboard 170, subscriber information server 180, short message service center (Short Message Service Center; SMSC, 190), and Multimedia Message Service Center (MSC, 200).

The mobile terminal 100 stores a plurality of different IMSIs in a mounted UICC card. Since the technology for storing and managing a plurality of different IMSIs by the mobile terminal 100 is well known, a detailed description thereof will be omitted. After the mobile terminal 100 is opened by the subscriber, the mobile terminal 100 according to the present invention can apply for the desired additional service for each IMSI to the subscribed mobile communication service provider. Thus, the mobile terminal 100 may be provided with a corresponding additional service according to the IMSI selected by the subscriber.

The base station 140 is connected to the mobile terminal 100 in a wireless section to control the mobile terminal 100 and connect a call channel. The base station 140 receives the outgoing call from the mobile terminal 100 and transmits it to the base station controller 160.

Base station controller 160 controls base station 140, assigns and releases radio channels to mobile terminal 100, transmit power control of mobile terminal 100 and base station 140, intercell soft handoff and hard handoff. Determination, transcoding and vocoding, and operation maintenance and maintenance functions for the base station 140 are performed.

The exchange 170 performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration procedure and handoff procedure processing, and interworking with other networks. The other network may be a system such as a public network or an intelligent network. In particular, the switch 170 according to the present invention receives the additional service information corresponding to the IMSI through the subscriber information server 180 when the mobile terminal 100 accesses the additional service using any one of the plurality of IMSIs. Provide additional services. That is, the exchange 170 determines whether to provide the service according to the additional service information on the specific IMSI value stored in the subscriber information server 180, and provides the additional service if possible, and if it is not possible, the exchange 170 provides a message indicating that it is impossible. 190, the MMSC 200 and the ARS guide device (not shown) may notify the mobile terminal 100. Since the mobile terminal 100 accesses the additional service is a well-known technique for accessing a server providing the additional service, a detailed description thereof will be omitted. In addition, the mobile terminal 100 is connected to the additional service is a procedure that the exchange 170 receives the additional service request from the mobile terminal 100 and is a well-known technique, and a detailed description thereof will be omitted.

The subscriber information server 180 manages general information of the mobile terminal 100 and manages information necessary for a subscriber to receive a communication service. In addition, the subscriber information server 180 may be a subscriber information device such as a home location register (HLR), other additional information storage device, a subscriber opening / closing device, and is an essential system in mobile communication. Here, the home location register is a system that manages information on a mobile subscriber in real time, and the exchange 170 obtains the current location information of the subscriber from the home location register, thereby enabling incoming calls to the mobile communication subscriber. At this time, the mobile terminal 100 continuously registers its current location to the home location register from the moment the power is turned on. Thus, in order to provide a service using the IMSI according to the present invention, the exchange 170 is the home location register. Check the IMSI value received when registering a location. Thus, the exchange 170 provides a service by determining an additional service corresponding to the IMSI value. The home location register stores and manages phone numbers, terminal serial numbers, call processing routing information, authorization information, and various additional service information for subscribers in an internal database. It will be apparent to those skilled in the art that the home location register may include other additional information storage devices or include devices externally according to the technical implementation. Hereinafter, a subscriber information device including a home location register (HLR) will be collectively described as a subscriber information server 180.

The SMSC 190 notifies that there is an MMS message to be received at the receiving terminal in order to store and process an existing SMS message or to transmit the MMS message stored in the MMSC 200 to the receiving terminal, and sends a data call for transmitting the MMS message data. It is an invoke device.

The MMSC 200 is a device that stores and processes the actual MMS message created in the calling terminal and transmitted to the MMS transmission system through the mobile communication network.

The SMSC 190 and the MMSC 200 according to the present invention may be a message server capable of delivering a service unavailable message to the mobile terminal 100 by the exchange 170.

4 is a flowchart illustrating a service providing method using IMSI according to an embodiment of the present invention.

Referring to FIG. 4, first, a subscriber opens using a mobile terminal having a plurality of IMSIs stored therein, and applies for each IMSI to the mobile communication service provider separately by applying for additional services (S410).

Next, the mobile communication service provider separately distinguishes and provides unique supplementary services to each IMSI and stores information on the supplementary supplementary services (S420). Here, the additional service information is stored in the subscriber information server 180, the subscriber information server 180 may be a home location register, other additional information storage device. Here, the home location register may store additional service information in an internal database. Alternatively, the other additional information storage device may store additional service information. In this case, the additional service information is classified and stored for each IMSI. The subscriber of the mobile terminal can select a desired IMSI through a menu provided by the mobile terminal and use the desired additional service with the selected IMSI.

Next, when the mobile terminal 100 accesses an additional service using a specific IMSI, the subscriber information server 180 receives the IMSI from the mobile terminal 100 and exchanges additional service information corresponding to the received IMSI. 170, the exchange 170 reads the additional service provided to the IMSI (S430). In this case, the mobile terminal 100 continuously registers the location with the subscriber information server 180 from the moment of powering up, and transmits the IMSI to the subscriber information server 180 at this time.

Next, the switch 170 provides the service when the read result (S440), the additional service is connected to the mobile terminal 100 is provided (S450).

Next, the exchange 170 notifies the mobile terminal 100 that the service is unavailable when the read result (S440), the additional service connected to the mobile terminal 100 is not provided (S460). The exchange 170 may notify the mobile terminal 100 that the service is unavailable using SMS / MMS or ARS guidance.

For example, assume that the mobile terminal 100 stores two IMSIs of "IMSI # 1" and "IMSI # 2". Here, it is assumed that "IMSI # 1" is IMSI capable of data service and "IMSI # 2" is IMSI capable of data service. When the mobile terminal 100 accesses the data service using "IMSI # 2", the exchange 170 determines that the data service is impossible by referring to the additional service information according to the IMSI stored in the service information server 180. . Thus, the exchange 170 may notify that the service is not available through the browser providing the data service. Alternatively, the exchange 170 may transmit a message that it is impossible to SMS / MMS when the telephone connection.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

1 is a block diagram illustrating the structure of a UE in a UMTS system.

2 is a UICC file structure supporting a plurality of USIM applications.

3 is a block diagram of a service providing system using IMSI according to an embodiment of the present invention.

4 is a flowchart illustrating a service providing method using IMSI according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: mobile terminal 140: base station

160: base station controller 170: switchboard

180: subscriber information server 190: SMSC

200: MMSC

Claims (6)

In the service providing system using the International Mobile Subscriber Identity (IMSI), A subscriber information server for storing supplementary service information about supplementary services requested for each of the plurality of IMSIs from a mobile terminal storing a plurality of IMSIs; When the mobile terminal requests an additional service using any one of the plurality of IMSI, whether the requested additional service is provided to the mobile terminal by receiving additional service information corresponding to the received IMSI from the subscriber information server. Service providing system using IMSI comprising a switch to determine the. The method of claim 1, The exchange determines whether to provide the additional service, if it is impossible, and transmits a service unavailable message to the mobile terminal, characterized in that the service providing system using IMSI. The method according to claim 1 or 2, And a message server configured to receive the service unavailable message from the exchange and transmit the received message to the mobile terminal. The method of claim 1, The mobile terminal is a service providing system using an IMSI, characterized in that it is equipped with a Universal Integrated Chip Card (UICC) storing a plurality of different IMSI. A service providing method using IMSI in a mobile communication system including a subscriber information server and a switch, Storing the additional service information regarding the additional service requested for each of the plurality of IMSIs from the mobile terminal in the subscriber information server; Requesting additional service information corresponding to the received IMSI from the subscriber information server when the mobile terminal requests an additional service using any one of the plurality of IMSIs; and And determining whether to provide the requested supplementary service to the mobile terminal by using the supplementary service information received from the subscriber information server. The method of claim 5, After determining whether to provide the requested additional service, If it is possible to provide the requested additional service, provide a service, If the requested additional service is unable to provide, further comprising the step of transmitting a service unavailable message.

Images