KR20190016356A - Apparatus and method for cooperating private network service and multi phone number service - Google Patents

Abstract

Disclosed are an apparatus for linking a private network service with a multiple phone number service and a method thereof. A communication terminal linking a private network service with a multiple phone number service comprises: a communication circuit communicating with a mobile communication system; at least one processor; and a memory storing an instruction which can be executed by the processor. The processor is assigned with a plurality of phone numbers from the mobile communication system to store the phone numbers, provides an independent interface mode per a phone number, and assigns one phone number of the plurality of phone numbers to a phone number to be applied to the private network service, and transmits an access point name (APN) change request to the mobile communication system when a current mode is a mode corresponding to the phone number applied to the private network service.

Description

[0001] APPARATUS AND METHOD FOR COOPERATING PRIVATE NETWORK SERVICE AND MULTI PHONE NUMBER SERVICE [0002]

The present invention relates to an apparatus and method for linking a multiple telephone number service and a private network service.

With the development of mobile communication systems today, communication services based on the LTE (Long Term Evolution) communication system, which is the next generation mobile communication technology, are underway. The LTE communication system includes an EPC (Evolved Packet Core) network including a Mobility Management Entity (MME), a Serving Gateway (SGW), and a Packet Data Network Gateway (PGW) . As the broadband mobile communication market becomes more active and smartphones become more popular, there is a growing demand for broadband mobile communication and smart phones for corporate services.

Accordingly, a technique of connecting a communication terminal with either a private network or a public network has been proposed. A conventional private network connection technology connects a communication terminal to a public network or a private network based on an access point name (APN) to which a communication terminal initially connects. That is, the conventional private network connection technology connects the communication terminal to the public network when the communication terminal is connected using the public APN, and connects the communication terminal to the private network when the communication terminal uses the private APN.

Such a conventional private network connection technique is a method in which a communication terminal selectively connects either a public APN or a private APN and is dependent on the communication terminal. That is, the conventional private network access technology can not be applied to a terminal that does not support the APN selection function because it is a technology that can be implemented only when a function of selecting an APN is added to a communication terminal. There is a manufacturing problem in which an APN selection function must be implemented. Attempts have been made to provide private network services to users by avoiding terminal dependencies and minimizing network changes.

Recent mobile communication services not only provide communication services for voice calls, but also provide various additional services according to the user's preferences. As one of such additional services, a 'multiple phone number service' is widely used in which two or more phone numbers are assigned to one communication terminal so that a user can select and dial a desired phone number. KT's Two Number Plus service is an example of 'multiple phone number service' provided by domestic mobile communication companies.

As described above, a private network service capable of connecting to one of a public network and a private network and a multiple telephone number service capable of allocating two or more telephone numbers to one communication terminal are provided as one communication terminal. However, There is no attempt to do.

It is an object of the present invention to provide an apparatus and method for linking a private telephone service with a private telephone service capable of using multiple telephone numbers.

According to an embodiment of the present invention, there is provided a communication terminal for interworking between a private network service and a multiple telephone number service, comprising: a communication circuit for communicating with a mobile communication system; One or more processors; And a memory for storing instructions executable by the processor, wherein the processor allocates and stores a plurality of telephone numbers from the mobile communication system and provides a mode of an independent interface for each telephone number, (APN) change request to the mobile communication system when the current mode is a mode corresponding to the telephone number applied to the private network service, Lt; / RTI >

Wherein the processor receives and stores a setting input for turning on or off a private network service from a user and only when the private network service is on and the current mode is a mode corresponding to a telephone number applied to the private network service, APN change request can be transmitted to the APN.

The processor may transmit current location information together with a request for setting a session to a private PGN (private PDN gateway) based on the changed APN.

The processor may change a telephone number to be applied to the private network service to another telephone number among the plurality of telephone numbers according to a user's input.

The processor may transmit an APN restoration request to the mobile communication system when switching to a mode corresponding to a telephone number applied to a non-private network service in a mode corresponding to a telephone number applied to the private network service.

A method of interworking between a private network service and a multiple phone number service in a communication terminal according to another embodiment includes: allocating and storing a plurality of phone numbers from a mobile communication system and providing a mode of an independent interface for each phone number; Setting a telephone number of one of the plurality of telephone numbers to a telephone number to be applied to the private network service; And transmitting an APN change request to the mobile communication system when the current mode is a mode corresponding to a telephone number applied to the private network service.

The method further includes receiving and storing a setting input of a private network service from a user and transmitting the private network service to the private network service, wherein the private network service is on and the current mode is a telephone number applied to the private network service, It is possible to transmit an APN change request to the mobile communication system.

The method may further include transmitting current location information together with a request to establish a session with a private PGW based on the changed APN.

The method may further include changing a telephone number to be applied to the private network service to another telephone number among the plurality of telephone numbers according to a user's input.

The method may further include transmitting an APN restoration request to the mobile communication system when switching to a mode corresponding to a telephone number applied to a non-private network service in a mode corresponding to a telephone number applied to the private network service.

According to another embodiment of the present invention, there is provided a system for storing a plurality of telephone numbers, providing a mode of an independent interface for each telephone number, and setting a telephone number of one of the plurality of telephone numbers to a telephone number to be applied to a private- When a current mode is a mode corresponding to a telephone number applied to the private network service, receives an APN change request from the communication terminal and requests an APN-OI change to a home subscriber server based on the APN change request, ; A home subscriber server for confirming an APN included in a subscriber profile of the communication terminal and changing a public APN-OI recorded in the APN to a private APN-OI when the APN-OI change request is received from the service interworking server; And receiving a subscriber profile of the communication terminal from the home subscriber server when an attempt is made from the communication terminal, using the IP address of the private gateway corresponding to the APN included in the subscriber profile, And a mobility management entity for leading the connection.

The service interworking server may receive an APN change request from the communication terminal when the private network service is on and the current mode is a mode corresponding to the private network service.

The private gateway receives the current location information of the communication terminal at the time of receiving the session establishment request from the communication terminal based on the changed APN, and when the current location information belongs to the private network service area, .

The service interworking server may receive an APN restoration request from the communication terminal when switching from a mode corresponding to a telephone number applied to the private network service to a mode corresponding to a telephone number applied to a non-private network service in the communication terminal.

A method of interworking a private network service and a multiple phone number service in a mobile communication system according to another embodiment of the present invention includes storing a plurality of phone numbers and providing a mode of an independent interface for each phone number, Receiving an APN change request from the communication terminal when the current mode is a mode corresponding to a telephone number applied to the private network service, the communication terminal setting a number to be applied to a private network service; Confirming an APN included in a subscriber profile of the communication terminal, and changing a public APN-OI recorded in the APN to a private APN-OI; And connecting the communication terminal to the private gateway by using the IP address of the private gateway corresponding to the APN included in the subscriber profile when connection is attempted from the communication terminal.

The method further includes receiving an APN restoration request from the communication terminal when switching from a mode corresponding to a telephone number applied to the private network service to a mode corresponding to a telephone number applied to a non-private network service at the communication terminal .

According to an embodiment, a user can use a plurality of phone numbers by allocating a plurality of phone numbers to one communication terminal while using one of the phone numbers in a private network service, thereby dividing a plurality of phone numbers into personal use and business use.

According to an embodiment, when a user allocates a plurality of phone numbers to one communication terminal and independently uses a plurality of modes corresponding to the respective phone numbers and switches from a mode set to a public network connection to a mode set to a private network connection, Can automatically access the private network and use the private network data service, so that the user can use the stable data service.

1 is a diagram illustrating a private network service system according to an embodiment of the present invention.
2 is a diagram illustrating a configuration of a communication terminal for a multiple phone number service according to an embodiment of the present invention.
3 is a flowchart illustrating a method of requesting a private network service in a communication terminal according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a method of linking a private network service and a multi-service number service according to an embodiment of the present invention.
5 is a flowchart illustrating a method of releasing an EPS session in a private network service system according to an embodiment of the present invention.
6 is a flowchart illustrating a method for blocking a private network connection of a communication terminal located in a non-private network service area in a private network service system according to another embodiment of the present invention.
7 is a flowchart illustrating a method of restoring a subscriber's APN-OI to a common APN-OI in a private network service system according to an embodiment of the present invention.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a private network service system according to an embodiment of the present invention.

1, a private network service system includes a communication terminal 100, a service interworking server 300, a Mobility Management Entity (MME) 410, a Home Subscriber (SGS) 420, a public PDN gateway (hereinafter referred to as 'public PGW') 610, and a private (public) gateway And a private PDN gateway 510 (hereinafter, referred to as a 'private PGW').

The communication terminal 100 may be called a mobile communication device providing or providing voice communication or data communication with other terms such as User Equipment (UE), Mobile Station (MS), User Terminal (UT), Subscriber Station have. The communication terminal 100 can transmit and receive data using the mobile communication core network 200. [ The communication terminal 100 allocates a plurality of telephone numbers and independently implements a mode corresponding to each telephone number. That is, the communication terminal 100 can independently implement an interface corresponding to each telephone number, independently store and execute an address book, an application, and the like for each interface.

The communication terminal 100 may mount a private network service related application and the private network service related application may request the service interworking server 300 to change the Access Point Name-Operator Identifier (APN-OI) for private network service have. The communication terminal 100 may transmit an independent path (e.g., a circuit-based path, a Wifi-based path) different from the EPS session when an EPS (Evolved Packet System) session is established with the public PGW 610 It may request the service interworking server 300 to change the APN-OI. The changing conditions of the APN-OI will be described later with reference to Fig.

The mobile communication core network 200 includes an Evolved Universal Terrestrial Radio Access Network (E-UTRAN), a Universal Terrestrial Radio Access Network (UTRAN), a GSM EDGE Radio Access Network (GERAN), and a WiFi network. UTRAN < RTI ID = 0.0 > 210 < / RTI > Also, the communication terminal 100 may use a mobile communication network in which a WCDMA network including a UTRAN is interworked, or may use a GERAN according to circumstances.

When the service interworking server 300 receives the APN-OI change request from the communication terminal 100, the service interworking server 300 authenticates the communication terminal 100 and requests the home subscriber server 430 to change the APN-OI. That is, when the service interworking server 300 receives the APN-OI change request from the communication terminal 100, the service interworking server 300 confirms the identification information of the communication terminal 100 and requests the HSS 430 to change the APN-OI. At this time, the identification information of the communication terminal 100 is unique information capable of identifying the terminal, and may be identification information of, for example, IMSI or MSISDN. The service interworking server 300 may be physically or separately configured with the home subscriber server 430 according to a design and an embodiment.

The MME 410 is a control plane entity in the E-UTRAN 210 and provides mobility management and session management functions of the communication terminal 100 through NAS (Non Access Stratum) signaling. In addition, the MME 410 manages the mobility state of the subscriber, and manages, for example, which communication network the communication terminal 100 is currently connected to, the idle state, and which other entity it is connected to . In particular, when the communication terminal 100 accesses the MME 410, the subscriber profile of the communication terminal 100 is requested to the HSS 430 and the APN (Access Point Name) is received from the subscriber profile received from the HSS 430 And then instructs the communication terminal 100 to connect to the corresponding IP address by using the IP address corresponding to the APN (that is, the public PGW IP address or the private PGW IP address). The MME 410 queries the DNS server (not shown) for the IP address corresponding to the APN, and obtains the IP address corresponding to the APN. On the other hand, when the MME 410 is requested to end the session of the communication terminal 100 from the HSS 430, the MME 410 ends the existing EPS session with the communication terminal 100.

The APN is an access point to which the communication terminal 100 is connected, and is composed of APN-NI (APN Network Identifier) and APN-OI (APN Operator Identifier). The APN-NI is network identification information, and generally the domain of the communication carrier is recorded. The APN-OI is identification information for network operation attached to the network identification information, and is a domain indicating the public PGW 610 or a domain indicating the private PGW 510.

The SGW 420 manages the mobility of the communication terminal 100 between the eNodeB and other base stations included in the E-UTRAN 210, the 3GPP network, and the EUTRAN. The SGW 420 manages payload traffic according to the established session And performs a session control function to process the message. That is, the SGW 420 operates as an anchor point when inter-base station handover and inter-3GPP inter-system handover are performed.

The public PGW 610 connects the communication terminal 100 to a public network such as the Internet 620, provides IP routing and forwarding functions, and provides packet filtering. The public PGW 610 allocates the IP address of the communication terminal 100 and performs the handover between the SGW 420 or the handover between the LTE communication system and the non-3GPP network (e.g. WiMax) And operates as a mobility anchoring point.

The HSS 430 is a server for storing subscriber information. The HSS 430 stores subscriber profiles separately for each communication terminal 100. In the subscriber profile, the presence or absence of the private network participation of the communication terminal 100 is recorded, and the APN of the communication terminal 100 is recorded. In addition, the HSS 430 stores the APN table in which the identification information of the communication terminal 100 subscribed to the private network service and the private APN-OI are mapped.

When the HSS 430 is requested to change the APN-OI of the communication terminal 100 from the service interworking server 300, the HSS 430 authenticates whether or not the communication terminal 100 is subscribed to the private network service, The APN-OI of the subscriber profile of the communication terminal 100 is changed to the private APN-OI. That is, when the communication terminal 100 is subscribed to the private network service, the HSS 430 checks the private APN-OI of the communication terminal 100 in the APN table and transmits the public APN-OI recorded in the subscriber profile to the private APN Change it to -OI. On the other hand, when the communication terminal 100 is not subscribed to the private network service, the HSS 430 transmits an APN-OI change disable notification message to the service interworking server 300. When the HSS 430 receives the APN-OI restoration request from the private PGW 510, the HSS 430 changes the private APN-OI recorded in the APN of the subscriber profile of the communication terminal 100 to the public APN-OI. When the HSS 430 changes the APN-OI of the subscriber profile, the HSS 430 requests the MME 410 to terminate the EPS session for the communication terminal 100 and notifies the MME 410 of the connection between the communication terminal 100 and the public PGW 610 Thereby terminating the EPS session formed in the < RTI ID = 0.0 >

The private PGW 510 is a gateway for connecting the communication terminal 100 to the intranet 520. When the communication terminal 100 accesses the communication terminal 100 using the APN including the private APN_OI, To allow access to the intranet 520. At this time, the private PGW 510 obtains the location information of the communication terminal 100, determines whether the communication terminal 100 is located in the designated private network service area based on the location information, And can establish a session with the communication terminal 100 when it is located in a private network service area. On the other hand, the private PGW 510 rejects the session establishment with the communication terminal 100 when the communication terminal 100 is not located in the private network service area. The private PGW 510 may assign an IP address used in the private network.

When the private PGW 510 establishes a session with the communication terminal 100, the private PGW 510 periodically checks the location of the communication terminal 100. The private PGW 510 releases the session with the communication terminal 100 and confirms the APN-OI restoration of the communication terminal 100 to the HSS 430 when it is determined that the communication terminal 100 has departed from the private network service area Request to change the private APN-OI of the subscriber profile to the public APN-OI.

2 is a diagram illustrating a configuration of a communication terminal for a multiple phone number service according to an embodiment of the present invention.

The multiple phone number service is a service for giving a plurality of telephone numbers to the communication terminal 100 and allowing a user to display any one of the telephone numbers as caller information to the called user at the time of calling. For example, when a user who is provided with a multiple telephone number service is to receive an additional telephone number other than the basic telephone number and desire to call another user, if the additional telephone number is to be displayed as caller information, An identification code is added and the call is made. At this time, in the mobile communication system, the identification code is interpreted to change the outgoing telephone number to an additional telephone number to perform call processing. Here, as an example of the identification code, there is a method of adding a special number (* 77) to the destination telephone number.

On the other hand, a user of a multiple telephone number service can receive a phone call or message at an additional telephone number. In this case, the calling side user tries to make an outgoing call with the additional phone number of the multiple phone number service user, and the mobile communication system uses the additional phone number to base phone number mapping table to transmit the originating user's outgoing call to the multi- Number Routes to the service user. At this time, the call routed to the multiple telephone number service user is identified whether the call is a call received at the primary telephone number or a call received at the additional telephone number. For example, in the case of a voice call, by inserting a basic telephone number or an additional telephone number in a specific field of a call entering a user of a multiple telephone number service in a mobile communication system, it is possible to determine which telephone number the incoming call is, . The communication terminal 100 of the user of the multiple telephone number service controls and manages ring tones, call records, and the like for the incoming voice call according to the telephone number inserted in the specific field.

2, communication terminal 100 includes a memory 110, a memory controller 121, one or more processors (CPU) 122, a peripheral interface 123, an input / output (I / O) A display device 141, an input device 142, and a communication circuit 152. The display device 141, These components communicate through one or more communication buses or signal lines. The various components shown in FIG. 2 may be implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and / or application specific integrated circuits.

The memory 110 may include a high-speed random access memory and may also include one or more magnetic disk storage devices, non-volatile memory such as a flash memory device, or other non-volatile semiconductor memory device. In some embodiments, the memory 110 may include a storage device, e.g., a communication circuit 152, located remotely from the one or more processors 122, and an Internet, Intranet, Local Area Network (WLAN) , A Storage Area Network (SAN), or the like, or any suitable combination thereof, via a network (not shown). Access to the memory 110 by other components of the communication terminal 10 such as the processor 122 and the peripheral interface 123 may be controlled by the memory controller 121. [

The peripheral interface 123 connects the input / output peripheral device of the communication terminal 10 to the processor 122 and the memory 110. The one or more processors 122 execute various software programs and / or a set of instructions stored in the memory 110 to perform various functions for the communication terminal 10 and process the data. In some embodiments, peripheral interface 123, processor 122, and memory controller 121 may be implemented on a single chip, such as chip 120. In other embodiments, they may be implemented as separate chips.

The I / O subsystem 130 provides an interface between the input / output peripheral of the communication terminal 10, such as the display device 141, the input device 142, and the peripheral interface 123.

The display device 141 may be a liquid crystal display (LCD) technology or a light emitting polymer display (LPD) technology. The display device 141 may be capacitive, resistive, infrared, or the like. The touch display provides an output interface and an input interface between the terminal and the user. The touch display displays a visual output to the user. The visual output may include text, graphics, video, and combinations thereof. Some or all of the visual output may correspond to a user interface object. The touch display forms a touch sensitive surface that accommodates user input.

The processor 122 is a processor configured to perform operations associated with the communication terminal 10 and to perform the instructions, for example, using the instructions retrieved from the memory 110, Reception and manipulation of data can be controlled.

In some embodiments, software components are installed (installed) in memory 110, such as an operating system 111, a graphics module (instruction set) 112, and an application (instruction set). The application may include a subscription module 113, a switching module 114, and a private network module 115, as shown in FIG. The subscription module 113, the switching module 114, and the private network module 115 may be implemented as a single application or as separate applications, respectively.

The operating system 111 may be an embedded operating system such as, for example, Darwin, RTXC, LINUX, UNIX, OS X, WINDOWS or VxWorks, Android, Management, storage control, power management, etc.), and facilitates communication between the various hardware and software components.

Graphics module 112 includes a number of well known software components for providing and displaying graphics on display device 141. The term "graphics" includes, without limitation, text, web pages, icons (e.g., user interface targets including soft keys), digital images, video, animations, .

The subscription module 113 handles the multiple phone number service subscription and the interworking subscription of the multiple phone number service and the private network service. The subscription module 113 displays a menu for subscribing to multiple phone number services on the display device 141 and transmits a subscription request to the mobile communication system according to the menu selection of the user to receive a plurality of phone numbers, Stored in the memory 110, and generates a mode for each telephone number. In addition, the subscription module 113 displays a menu for interworking subscription of the multiple phone number service and the private network service, and transmits a subscription request to the mobile communication system, specifically, the service interworking server 300 according to the menu selection of the user And receives a response. The service interworking server 300 can confirm or deny the private network service subscription using the basic telephone number and permit or deny interworking.

The subscription module 113 selects a telephone number to which a private network service is applied among a plurality of telephone numbers from the user after the subscription of the multi-phone number service and the private network service, and transmits the selected telephone number to the service interworking server 300 . Therefore, when the communication terminal 100 is switched to a mode corresponding to the selected phone number, i.e., a phone number corresponding to the private network service, the subscription module 113 detects the switching and informs the private network module 115 of the switching . In addition, the subscription module 113 senses the switching to the mode of the telephone number not applied to the private network service in the mode corresponding to the telephone number corresponding to the private network service, and notifies the private network module 115 of the switching.

Each phone number mode generated by the subscription module 113 provides the user with an independent interface. For example, if one telephone number other than the primary telephone number is additionally assigned, the communication terminal 100 provides two modes, i.e., two independent interfaces.

The first interface is an interface corresponding to the basic telephone number assigned to the communication terminal 100 and sets an independent screen and allocates an independent storage area to the memory 110 to perform a terminal function and an additional function related to the basic telephone number. Store and access areas, and manage data. A state in which the first interface is activated may be referred to as a P (private) mode. When the user attempts to originate an additional telephone number while the first interface is activated, the user inserts an identification number (e.g., * 77) directly into the called telephone number to make a call.

The second interface provides an interface corresponding to the additional telephone number further assigned to the communication terminal 100 according to the multiple telephone number service. The second interface is also set up as an independent screen, and an independent storage area is allocated to store and manage data related to the additional telephone number. The second interface automatically adds an identification code (e.g., * 77) to the incoming phone number upon dialing. Thus, when the second interface is activated, an additional telephone number is displayed as caller information in the called terminal without any special action. And the state in which the second interface is activated may be referred to as B (Business) mode.

For each interface, the terminal setting values such as background screen, ring tone, vibration / light emitting status, etc. are independently set. This means that the background screen, the ring tone, and the vibration / light emission are independently applied to each other according to the basic phone number and the additional phone number. Each interface displays an indicator on the screen that can distinguish the current mode of operation. For example, if the mode corresponds to the basic telephone number, P (Private) is displayed in the status bar, and B (Business) is displayed in the status bar in the mode corresponding to the additional telephone number.

The switching module 114 switches between the first interface and the second interface and activates one of the first interface and the second interface to apply the interface to the communication terminal 100. The switching module 114 receives a predetermined operation from the user and performs switching between the two interfaces. The predetermined operation may include an operation of pressing a function key provided in the communication terminal 100 or an operation of pressing a specific key of the keypad for a predetermined time or an application installed in the communication terminal 100, There may be various operations that do not overlap with operations instructing other functions of the communication terminal 100. [

In addition, the conversion module 114 may allow the user to input the password and perform the conversion after switching the two interfaces. The user is set to a password in advance, and then upon inputting the set password, the authentication process is performed. The switching function using such a password can be set according to the user's selection. In the present embodiment, it is described that two interfaces are provided. However, a plurality of additional telephone numbers may be assigned to a multiple telephone number service, and a plurality of interfaces corresponding thereto may be further added. In the switching module 114, Can be selected and activated.

The private network module 115 receives and stores the ON / OFF setting input of the private network service from the user. Even if the subscriber module 113 receives a notification from the subscription module 113 that the communication terminal 100 is switched to the mode of the telephone number corresponding to the private network service, the private network module 115, Does not request an APN-OI change. On the other hand, when the user sets the private network service to ON, the private network module 115 receives a notification from the subscription module 113 that the communication terminal 100 is switched to the mode of the telephone number corresponding to the private network service, And requests the server 320 to change the APN-OI. When the communication terminal 100 switches back to the mode of the telephone number not applied to the private network service in the mode of the telephone number applied to the private network service, the private network module 115 changes the APN-OI to the service interworking server 320 request. I.e., restoration of the APN-OI.

The communication circuit 152 transmits / receives a signal to / from the wire or wirelessly transmits / receives an electromagnetic wave. The communication circuit 152 converts electrical signals to electromagnetic waves and vice versa and communicates with the communication network, other mobile gateways, and communication devices through the electromagnetic waves. The communication circuit 152 includes, for example, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chipset, a subscriber identity module And may include well-known circuits for performing such functions without limitation. The communication circuitry 152 may be any of a variety of communication networks, including the Internet, referred to as the World Wide Web (WWW), a network such as an intranet and / or a cellular telephone network, a wireless LAN and / or a metropolitan area network It can communicate with other devices by communication. The wireless communication may be implemented in a variety of communication systems such as Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), wideband code division multiple access (WCDMA), code division multiple access (CDMA), time division multiple access (TDMA) Protocol), Wi-MAX, Bluetooth, zigbee, Near Field Communication (NFC), or any other suitable communication protocol including communication protocols not yet developed at the time of the filing of the present application But not limited to, any of a plurality of communication standards, protocols, and techniques.

FIG. 3 is a flowchart illustrating a method for requesting a private network service in a communication terminal according to an embodiment of the present invention, and may be performed by the processor 122 in FIG.

Referring to FIG. 3, mode switching occurs in the communication terminal 100 providing an independent mode, that is, an interface, for each of a plurality of telephone numbers, and the communication terminal 100 senses it (S301). The user enters mode switching through an application provided by the communication terminal 100, and the communication terminal 100 switches modes according to the input. For example, when two telephone numbers are assigned, the first mode corresponding to the basic telephone number can be switched to the second mode corresponding to the additional telephone number, or vice versa.

The communication terminal 100 checks whether the private network service is ON according to the detection of the mode change, and if the private network service is ON, checks whether the telephone number applied to the private network service by the user matches the telephone number of the current mode after the conversion 302).

When the private network service is ON and the telephone number applied to the private network service matches the telephone number of the current mode after the conversion, the communication terminal 100 requests the service interworking server 300 to change the APN-OI (S303). Accordingly, the APN-OI of the communication terminal 100 is changed in the mobile communication system, and the communication terminal 100 can access the intranet 520 through the private PGW 510. [

On the other hand, if the private network service is not ON, or if the telephone number applied to the private network service does not match the telephone number of the current mode after switching, the communication terminal 100 does not request the APN-OI change, A general operation is performed (S304). Namely, since the APN-OI is not changed, the communication terminal 100 connects to the public Internet 620 via the public PGW 610. [

On the other hand, when the communication terminal 100 switches back to the mode of the telephone number not applied to the private network service in the mode of the telephone number applied to the private network service, the communication terminal 100 requests the service interworking server 300 to change or restore the APN-OI.

FIG. 4 is a flowchart illustrating a method of linking a private network service and a multi-service number service according to an embodiment of the present invention.

Referring to FIG. 4, in step S401, the communication terminal 100, which has been assigned multiple telephone numbers, establishes an EPS session with the MME 410 and the public PGW 610 in a mode of a telephone number not applied to the private network service. Accordingly, the communication terminal 100 accesses the public Internet 620 via the public PGW 610 and uses the data service. Thereafter, the communication terminal 100 switches to the mode of the telephone number applied to the private network service (S402). Accordingly, the communication terminal 110 transmits an APN-OI change request to the service interworking server 300 (S403). At this time, the communication terminal 100 does not use the EPS session, but transmits the APN-OI change request (for example, a 3G-based circuit switching network, an IMS network, a WiFi network, To the service interworking server (300). The communication terminal 100 may transmit the APN-OI change request through a private network service-related application. In addition, the communication terminal 100 switches the mode in the ON state of the private network service.

Then, the service interworking server 300 requests the HSS 430 to change the APN-OI upon receiving the APN-OI change request from the communication terminal 100 (S405). At this time, the service interworking server 300 confirms the identification information (for example, IMSI) of the communication terminal 100 and provides the identification information to the HSS 430.

Subsequently, the HSS 430 confirms the subscriber profile of the communication terminal 100 based on the identification information of the communication terminal 100. The HSS 430 then authenticates whether the communication terminal 100 is a terminal subscribed to the private network service based on the subscriber profile (S407). If the authentication is successful, the HSS 430 writes the public APN-OI recorded in the APN of the subscriber profile To APN-OI (S409). At this time, the HSS 430 confirms the private APN-OI mapped to the identification information of the communication terminal 100 in the APN table, and changes the public APN-OI to the private APN-OI thus confirmed. When the change of the APN-OI is completed, the HSS 430 requests the MME 410 to terminate the EPS session (S411).

Then, the MME 410 determines whether or not a session is established with the communication terminal 100. If the session is established, the MME 410 transmits the EPS The session is terminated (S413). The session end will be described in detail with reference to FIG.

The communication terminal 100 having the EPS session terminated requests the MME 410 to establish a connection (S415). At this time, the communication terminal 100 can automatically request an access to the MME 410 as soon as the EPS session is terminated, or may attempt connection by the user's operation.

The MME 410 then requests the subscriber profile of the communication terminal 100 to the HSS 430 in step S417 and receives the subscriber profile of the communication terminal 100 from the HSS 430 in step S419. Then, the MME 410 confirms the APN in the subscriber profile of the communication terminal 100 (S421), queries the DNS server (not shown in the figure) corresponding to the APN, The IP address is obtained from the DNS server (S423). That is, the MME 410 requests the IP address of the APN composed of the APN-NI and the private APN-OI to the DNS server, and receives the IP address of the private PGW 510 as the IP address from the DNS server.

Then, the MME 410 uses the IP address of the private PGW 510 obtained from the DNS server (S425). Then, the communication terminal 100 requests the private PGW 510 having the IP address to establish a session (S427). The communication terminal 100 transmits the current location information to the private PGW 510. The communication terminal 100 may transmit at least one location information, such as GPS coordinates, base station cell ID detected at the current location, or access point ID, to the private PGW 510.

The private PGW 510 analyzes the location information received from the communication terminal 100 and performs subscriber verification (S429). That is, the private PGW 510 verifies whether the location information of the communication terminal 100 is included in the pre-set private network service area, and performs the subscriber verification. If the subscriber verification is successful, the private PGW 510 forms an EPS session with the communication terminal 100 (S431). The private PGW 510 can establish a session with the communication terminal 100 via the SGW 420, the MME 410 and the base station and can also establish a session with the communication terminal 100 via the SGW 420 and the base station. Session.

When the EPS session is established with the private PGW 510, the communication terminal 100 accesses the intranet 520 to acquire or store necessary data, and can use the external Internet through the intranet 520.

As described above, when the communication terminal 100 switches from the ON state of the private network service to the mode of the telephone number applied to the private network service, the mobile communication system automatically changes the APN-OI of the communication terminal 100, The terminal 1000 can access the intranet 520 without changing the terminal standard, and can use the data service by distinguishing between private use and public use.

5 is a flowchart illustrating a method of releasing an EPS session in a private network service system according to an embodiment of the present invention.

5, when the APN-OI is changed, the HSS 430 transmits a location registration cancel message including the identification information (e.g., IMSI) of the communication terminal 100 to the session of the communication terminal 100 (Cancel Locacation) to the MME 410 (S501).

The MME 410 then initiates a procedure for releasing the session of the communication terminal 100 and transmits a Detach Request to the communication terminal 100 in step S503, (Cancel Location ACK) to the HSS 430 (S505).

The MME 410 then transmits a Delete Session Request message to the SGW 420 in order to release the session formed with the SGW 420 and the Public PGW 610 in step S507, Transmits the session deletion request message to the public PGW 610 (S509).

Next, the public PGW 610 transmits a Delete Session Response message to the SGW 420 and releases the session formed with the SGW 420 (S511). Then, the SGW 420 transmits a Delete Session Response message to the MME 410 and releases the session formed with the MME 410 (S513).

The MME 410 releases the connection formed with the communication terminal 100 by releasing a signaling connection formed with the communication terminal 100 upon receiving a detach accept message from the communication terminal 100 (S517).

According to this procedure, the EPS session formed between the communication terminal 100 and the public PGW 610 is released. That is, when the APN-OI is changed in the HSS 430, the MME 410 requests the MME 410 to cancel the registration, and the MME 410 requests the connection to the communication terminal 100 to terminate the connection with the communication terminal 100 And the MME 410 also issues a session release to the SGW 420 to release the session formed between the MME 410, the SGW 420 and the public PGW 610.

6 is a flowchart illustrating a method for blocking a private network connection of a communication terminal located in a non-private network service area in a private network service system according to another embodiment of the present invention.

Referring to FIG. 6, the communication terminal 100 allocated a plurality of telephone numbers establishes an EPS session with the MME 410 and the public PGW 610 in a mode of a telephone number not applied to a private network service (S601). Accordingly, the communication terminal 100 accesses the public Internet 620 via the public PGW 610 and uses the data service. Thereafter, the communication terminal 100 switches to the mode of the telephone number applied to the private network service (S602). Accordingly, the communication terminal 110 transmits an APN-OI change request to the service interworking server 300 (S603). At this time, the communication terminal 100 does not use the EPS session, but transmits the APN-OI change request (for example, a 3G-based circuit switching network, an IMS network, a WiFi network, To the service interworking server (300). The communication terminal 100 may transmit the APN-OI change request through a private network service-related application. In addition, the communication terminal 100 switches the mode in the ON state of the private network service.

Then, the service interworking server 300 requests the HSS 430 to change the APN-OI upon receiving the APN-OI change request from the communication terminal 100 (S605). At this time, the service interworking server 300 confirms the identification information (for example, IMSI) of the communication terminal 100 and provides the identification information to the HSS 430.

Subsequently, the HSS 430 confirms the subscriber profile of the communication terminal 100 based on the identification information of the communication terminal 100. The HSS 430 then authenticates whether the communication terminal 100 is a terminal subscribed to the private network service based on the subscriber profile (S607). If the authentication is successful, the HSS 430 writes the public APN-OI recorded in the APN of the subscriber profile To APN-OI (S609). At this time, the HSS 430 confirms the private APN-OI mapped to the identification information of the communication terminal 100 in the APN table, and changes the public APN-OI to the private APN-OI thus confirmed. When the change of the APN-OI is completed, the HSS 430 requests the MME 410 to terminate the EPS session (S611).

The MME 410 then determines whether or not a session with the communication terminal 100 is established and transmits the EPS session formed by the communication terminal 100, the SGW 420, and the public PGW 610, (S613).

The communication terminal 100 having the EPS session terminated requests the MME 410 to connect (S615). At this time, the communication terminal 100 can automatically request an access to the MME 410 as soon as the EPS session is terminated, or may attempt connection by the user's operation.

The MME 410 then requests the subscriber profile of the communication terminal 100 to the HSS 430 in step S617 and receives the subscriber profile of the communication terminal 100 from the HSS 430 in step S619. Next, the MME 410 confirms the APN in the subscriber profile of the communication terminal 100 (S621), queries the DNS server (not shown in the figure) corresponding to the APN, The IP address is acquired from the DNS server (S623). That is, the MME 410 requests the IP address of the APN composed of the APN-NI and the private APN-OI to the DNS server, and receives the IP address of the private PGW 510 as the IP address from the DNS server.

Subsequently, the MME 410 uses the IP address of the private PGW 510 obtained from the DNS server (S625). Then, the communication terminal 100 requests the private PGW 510 having the IP address to establish a session (S627). The communication terminal 100 transmits the current location information to the private PGW 510. The communication terminal 100 may transmit at least one location information such as GPS coordinates, base station cell ID detected at the current location, or access point ID to the private PGW 510.

The private PGW 510 analyzes the location information received from the communication terminal 100 and performs subscriber verification. That is, the private PGW 510 verifies whether the location information is included in the pre-set private network service area, and performs the subscriber verification.

If the subscriber verification fails (S629), the private PGW 510 rejects the session requested from the communication terminal 100 (S631). Then, the private PGW 510 generates a guidance message informing that the current location of the private network service is impossible, and sends it to the communication terminal 100 (S633). For example, the private PGW 510 can send a guidance message to the communication terminal 100 such as "The area where the current location is located is not a place to access the intranet.

Then, the private PGW 510 requests the HSS 430 or the service interworking server 300 to restore the APN-OI of the communication terminal 100 (S635). Then, the HSS 430 or the service interworking server 300 changes the private APN-OI changed in step S609 back to the common APN-OI so that the default APN is recorded in the subscriber profile. That is, when the communication terminal 100 subscribed to the private network service is not located in the private network service area, the private PGW 510 requests the HSS 430 or the service interworking server 300 to restore the APN-OI, 430 changes the private APN-OI recorded in the APN of the subscriber profile to the common APN-OI in order to connect the communication terminal 100 to the public PGW 610.

According to this procedure, even if the communication terminal 100 is subscribed to the private network service and is switched to the mode of the telephone number applied to the private network service, if the APN-OI is shared in the subscriber profile of the communication terminal 100 APN-OI, the communication terminal 100 can not access the intranet 520 and accesses only the Internet 620, which is a public network.

7 is a flowchart illustrating a method of restoring a subscriber's APN-OI to a common APN-OI in a private network service system according to an embodiment of the present invention. The process according to Fig. 7 is executed after the procedure according to Fig.

Referring to FIG. 7, the private PGW 510 establishes an EPS session with the communication terminal 100 to allow the communication terminal 100 to access the intranet 520 (S701). Then, the private PGW 510 continuously monitors the location of the communication terminal 100 to determine whether the communication terminal 100 has left the private network service area (S703, S705). That is, the communication terminal 100 periodically transmits its own location information (i.e., GPS coordinates, cell ID, etc.) to the private PGW 510, and the private PGW 510 transmits, based on the location of the communication terminal 100, It is determined whether or not the communication terminal 100 leaves the private network service area.

Next, if it is determined that the communication terminal 100 is still located in the private network service area, the private PGW 510 proceeds to step S703 again. On the other hand, if it is determined that the communication terminal 100 is departing from the private network service area, the private PGW 510 cancels the EPS session established with the communication terminal 100 (S707). Then, the private PGW 510 requests the HSS 430 to restore the APN-OI of the communication terminal 100 (S709).

Then, the HSS 430 extracts the subscriber profile of the communication terminal 100, restores the private APN-OI recorded in the APN of the subscriber profile to the common APN-OI, and causes the default APN to be recorded in the subscriber profile ( S711).

Meanwhile, when the EPS session is released due to the communication terminal 100 departing from the private network service area, the private PGW 510 generates a text message informing that the presently located area is unable to provide the private network service, and sends the text message to the communication terminal 100 It is possible.

Although an EPS session is established between the communication terminal and the gateway 610 and 510 in the above-described embodiment, even if a session different from the EPS session type is formed in the communication terminal 100, It should be clear that it can be applied.

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. In addition, the features described in the individual embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in the singular < Desc / Clms Page number 5 > embodiments herein may be implemented in various embodiments individually or in combination as appropriate.

Although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed to obtain a sequence of sequential orders, or a desired result . In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above can be implemented by a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto optical disk, etc.). Such a process can be easily carried out by those skilled in the art and will not be described in detail.

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. The present invention is not limited to the drawings.

100: communication terminal 200: mobile communication core network
210: E-UTRAN 300: service interworking server
410: MME 420: SGW
430: HSS 510: Private PGW
520: Intranet 610: Public PGW
620: Internet

Claims (16)

A communication terminal for linking a private network service with a multiple telephone number service,
A communication circuit for communicating with the mobile communication system;
One or more processors; And
A memory for storing instructions executable by the processor,
The processor comprising:
A plurality of telephone numbers are allocated and stored from the mobile communication system, a mode of an independent interface is provided for each telephone number,
Setting a telephone number of one of the plurality of telephone numbers to a telephone number to be applied to the private network service,
And transmits an APN (Access Point Name) change request to the mobile communication system when the current mode is a mode corresponding to a telephone number applied to the private network service. The method according to claim 1,
The processor comprising:
Receives a setting input of on or off of a private network service from a user,
And transmits the APN change request to the mobile communication system only when the private network service is on and the current mode is a mode corresponding to the telephone number applied to the private network service. The method according to claim 1,
The processor comprising:
And transmits current location information together with a request to establish a session with a private PDN gateway (PGW) based on the changed APN. The method according to claim 1,
The processor comprising:
And changing a telephone number to be applied to the private network service to another telephone number among the plurality of telephone numbers according to a user's input. The method according to claim 1,
The processor comprising:
When the mode is changed to a mode corresponding to a telephone number applied to a non-private network service in a mode corresponding to a telephone number applied to the private network service, an APN restoration request is transmitted to the mobile communication system. A method for interworking a private network service and a multiple phone number service in a communication terminal,
The method comprising: allocating and storing a plurality of telephone numbers from a mobile communication system and providing a mode of an independent interface for each telephone number;
Setting a telephone number of one of the plurality of telephone numbers to a telephone number to be applied to the private network service; And
And transmitting an APN change request to the mobile communication system when the current mode is a mode corresponding to a telephone number applied to the private network service. The method according to claim 6,
Further comprising receiving and storing a setting input of on or off of a private network service from a user,
Wherein the transmitting comprises:
Wherein the APN change request is transmitted to the mobile communication system only when the private network service is on and the current mode is a mode corresponding to the telephone number applied to the private network service. The method according to claim 6,
And transmitting the current location information together with a request to establish a session with a private PGW based on the changed APN. The method according to claim 6,
Further comprising changing a telephone number to be applied to the private network service to another telephone number among the plurality of telephone numbers according to a user's input. The method according to claim 6,
Further comprising the step of transmitting an APN restoration request to the mobile communication system when switching to a mode corresponding to a telephone number applied to a non-private network service in a mode corresponding to a telephone number applied to the private network service. A communication terminal which stores a plurality of telephone numbers and provides a mode of an independent interface for each telephone number and sets a telephone number of one of the plurality of telephone numbers as a telephone number to be applied to a private network service, A service interworking server for receiving an APN change request from the communication terminal and requesting a home subscriber server to change an APN-OI based on the APN change request when the mode corresponds to the applied phone number;
A home subscriber server for confirming an APN included in a subscriber profile of the communication terminal and changing a public APN-OI recorded in the APN to a private APN-OI when the APN-OI change request is received from the service interworking server; And
A subscriber profile of the communication terminal is received from the home subscriber server when an attempt is made from the communication terminal, and the IP address of the private gateway corresponding to the APN included in the subscriber profile is used to connect the communication terminal to the private gateway The mobility management entity comprising: 12. The method of claim 11,
The service interworking server comprises:
Wherein the communication terminal receives an APN change request from the communication terminal when the private network service is on and the current mode is a mode corresponding to a telephone number applied to the private network service. 12. The method of claim 11,
The private gateway comprises:
And receives a current location information of the communication terminal when receiving a session establishment request from the communication terminal based on the changed APN, and forms a session with the communication terminal when the current location information belongs to a private network service area System. 12. The method of claim 11,
The service interworking server comprises:
Wherein the communication terminal receives an APN restoration request from the communication terminal when switching from a mode corresponding to a telephone number applied to the private network service to a mode corresponding to a telephone number applied to a non-private network service. A method of interworking a private network service and a multiple phone number service in a mobile communication system,
A communication terminal which stores a plurality of telephone numbers and provides a mode of an independent interface for each telephone number and sets a telephone number of one of the plurality of telephone numbers as a telephone number to be applied to a private network service, Receiving an APN change request from the communication terminal when the mode corresponds to the applied telephone number;
Confirming an APN included in a subscriber profile of the communication terminal, and changing a public APN-OI recorded in the APN to a private APN-OI; And
And connecting the communication terminal to the private gateway by using the IP address of the private gateway corresponding to the APN included in the subscriber profile when connection is attempted from the communication terminal. 16. The method of claim 15,
Further comprising the step of receiving an APN restoration request from the communication terminal when switching from a mode corresponding to a telephone number applied to the private network service to a mode corresponding to a telephone number applied to a non-private network service in the communication terminal Way.

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