RU2682905C2 - Mobile communication system, different mobile devices sharing same phone number on mobile communication system and method for providing mobile communication service between different mobile devices sharing same phone number - Google Patents

Abstract

FIELD: wireless communication equipment.SUBSTANCE: invention relates to mobile devices. In the method, the technical result is achieved in that the mobile device includes a controller that, after determining that the phone function of the other mobile device is turned off, activates the phone function of the mobile device which the phone number of the other mobile device is assigned to; and a communicator configured to perform a mobile communication function using the phone number when the phone function of the mobile device is activated.EFFECT: sharing the phone number of another mobile device in a mobile communication system.13 cl, 68 dwg

Description

FIELD OF THE INVENTION

Aspects of one or more exemplary embodiments relate to a mobile communication system and different mobile devices sharing the same phone number in a mobile communication system.

BACKGROUND

Digital information and communication technologies are developing rapidly. Innovations in the information sphere, distributed by mobile phones and the Internet, and smartphones and tablet devices that combine the functions of mobile phones and Internet technology, are increasingly well known. Devices have come up using new concepts, such as wearable devices. Consumers who already have a smartphone wish to use such devices with a new concept. Thus, regarding relatively new types of devices or devices of a new concept, studies have been conducted on ways to combine them with existing smartphones and tablet devices and to introduce them into everyday life of consumers.

Disclosure of invention

The technical task of the invention

Aspects of one or more exemplary embodiments include a mobile communication system and various mobile devices sharing the same phone number in a mobile communication system. The technical problem that will be solved according to exemplary embodiments is not limited to the above technical problems, and thus other technical problems can be derived from the following exemplary embodiments.

Additional aspects will be set forth in part in the description that follows, and in part, will be apparent from the description, or may be learned by practice of the presented exemplary embodiments.

Technical solution

According to an aspect of one or more exemplary embodiments, there is provided a mobile device configured to share the phone number of another mobile device in a mobile communication system, the mobile device includes: a controller configured to, after determining that the telephone function of another mobile device is disabled, activate the phone function of the mobile device to which the phone number of another mobile device is assigned; and a communicator configured to perform a mobile communication function using the phone number when the telephone function of the mobile device is activated.

The mobile device may further include a Subscriber Identity Module (SIM) configured to receive SIM information from the server and store SIM information.

SIM information may include subscriber information of a mobile device corresponding to a phone number in a mobile communication system in which a mobile device and another mobile device are present.

The communicator may be further configured to receive SIM information from the server when the telephone function of the mobile device is activated.

The communicator can be additionally configured to: transmit a SIM information request to the server in response to the activated function of the mobile phone telephone and receive SIM information in response to the SIM information request.

The communicator may be further configured to: transmit to the server a request for using SIM information when SIM information is received, and perform a mobile communication function in response to receiving permission from the server.

The mobile device may further include a storage device with the identification information (identifier, ID) of the device stored therein having a value different from the device ID information of another mobile device.

The device ID information for another mobile device may include at least one of a serial number and an International Mobile Equipment Identifier (IMEI) of another mobile device, and the device ID information for the mobile device may include at least one of a serial number and IMEI of the mobile device.

The communicator may be further configured to: connect to another mobile device using near-field wireless communication, and exchange information about the activation state of the telephone function of another mobile device and the activation state of the telephone function of the mobile device with another mobile device.

The controller may further be configured to activate the telephone function of the mobile device based on the exchanged information.

The controller may be further configured to, in response to a determination that the telephone function of another mobile device is disabled, automatically activate the telephone function of the mobile device.

The mobile device may further include a user interface (UI) configured to provide a pop-up UI for setting the activation state of the telephone function in the mobile device.

The controller may be further configured to respond to user input to set the activation state of the telephone function of the mobile device to “active”, entered via the pop-up UI, to activate the telephone function of the mobile device.

The mobile device may further include a subscriber identity module (SIM card) configured to: receive SIM information from the server regardless of the activation state of the mobile phone function of the mobile device and pre-store the received SIM information.

The communicator may be further configured to, in response to the activated function of the telephone of the mobile device, transmit a request for using previously stored SIM information and perform a mobile communication function in response to receiving permission from the server.

The communicator may be further configured to, in response to the activated function of the telephone of the mobile device, receive information from the Subscriber Identity Module (SIM) from another mobile device.

The communicator may be further configured to, in response to SIM information received from another mobile device, transmit to the server a request for using the received SIM information and perform a mobile communication function in response to receiving permission from the server.

The communicator may be further configured to respond to a telephone function of another mobile device that is activated, while the SIM information is stored in the SIM, to transmit the stored SIM information to another mobile device.

The controller may be further configured to control SIM to delete SIM information after the SIM information is transmitted.

According to an aspect of one or more exemplary embodiments, a mobile communication system is provided, including: a first mobile device configured to perform a mobile communication function using information of a first subscriber identity module (SIM) containing subscriber information of a phone number registered in a mobile communication system ; a second mobile device configured to perform a mobile communication function using the second SIM information containing the subscriber information of the phone number; and a server configured to: receive requests for use of the first SIM information and requests for use of the second (information) SIM, and connect, in response to the telephone number requested to be called, a telephone call with a mobile device corresponding to the requested first SIM information or the requested second SIM information.

The first mobile device may be configured to: transmit a request that the server transmits first SIM information in response to an activated telephone function of the first mobile device; and transmit to the server a request for using the first SIM information when the first SIM information is received.

The second mobile device may be configured to: transmit a request that the server transmits second SIM information in response to an activated telephone function of the second mobile device; and transmit to the server a request for using the second SIM information when the second SIM information is received.

The first mobile device may be further configured to receive first SIM information from the server, regardless of the activation state of the telephone function of the first mobile device, and to transmit to the server a request to use the first SIM information in response to the telephone function activated in the first mobile device.

The second mobile device may be further configured to receive second SIM information from the server regardless of the activation state of the telephone function of the second mobile device and to transmit to the server a request to use the second SIM information in response to the telephone function activated in the second mobile device.

At least one device from the first mobile device may be further configured to receive first SIM information from the server regardless of the activation of the telephone function of the first mobile device, and the second mobile device may further be configured to receive second SIM information from the server regardless of activation phone features of a second mobile device.

The first mobile device and the second mobile device may be further configured to exchange pre-stored first SIM information or pre-stored second SIM information between the first mobile device and the second mobile device.

According to an aspect of one or more exemplary embodiments, there is provided a method of providing, by a mobile device sharing the telephone number of another mobile device, a mobile communication service, the method includes: determining whether the telephone function of the other mobile device is disabled; activating the telephone function of the mobile device based on the result of the determination; and performing, in response to an activated telephone function of the second mobile device, a mobile communication function using a telephone number.

Beneficial effects of the invention

As described above, according to one or more exemplary embodiments, since a user can use several mobile devices in a mobile communication system using a single phone number, without having to manage these several mobile devices having different phone numbers, a user owning several mobile devices can accept a mobile service through a single device from several mobile devices based on their situation. In addition, the inconvenience of managing different phone numbers for multiple mobile devices can be reduced, and other users do not need to remember different phone numbers.

BRIEF DESCRIPTION OF THE DRAWINGS

These and / or other aspects will become apparent and more easily appreciated from the following description of some exemplary embodiments, considered together with the accompanying drawings, in which:

Figure 1 is a diagram for describing a mobile communication system in which various mobile devices make a call using the same phone number, in accordance with an exemplary embodiment;

2 is a diagram for describing a second mobile device of user A, in accordance with an exemplary embodiment;

3 is a diagram for describing a second mobile device of user A, according to another exemplary embodiment;

4 is a block diagram of a second mobile device in accordance with an exemplary embodiment;

5 is a diagram for describing identification information (ID) of a device and information of a subscriber identification module (SIM) that is stored in each device from a first mobile device and a second mobile device, in accordance with an exemplary embodiment;

6 is a timing chart of a method of making a call from a first mobile device and a second mobile device that have the same phone number and belong to user A to the mobile device of user B in a mobile communication system, in accordance with an exemplary embodiment;

7 is a diagram for describing a server of a mobile operator (service provider) managing mobile devices belonging to user A, in accordance with an exemplary embodiment;

Fig. 8A is a diagram for describing a pairing of a first mobile device and a second mobile device in dual-telephone mode, in accordance with an exemplary embodiment;

8B is a diagram for describing a separation of a first mobile device and a second mobile device in dual-telephone mode, in accordance with an exemplary embodiment;

Fig. 9 is a diagram for describing manually activating a telephone function of a first mobile device or a telephone function of a second mobile device in dual-telephone mode, in accordance with an exemplary embodiment;

10A is a flowchart of a method for activating a telephone function of a first mobile device or a telephone function of a second mobile device in dual-telephone mode, in accordance with an exemplary embodiment;

10B is a diagram for describing a case in which a telephone function of a first mobile device is activated from among a first mobile device and a second mobile device that are connected to each other in a two-telephone mode, in accordance with an exemplary embodiment;

10C is a diagram for describing a case in which a telephone function of a second mobile device is activated from among a first mobile device and a second mobile device that are connected to each other in a two-phone mode, in accordance with an exemplary embodiment;

10D is a diagram for describing a case in which a telephone function of a first mobile device is activated from among a first mobile device and a second mobile device that are separated from each other in a two-phone mode, in accordance with an exemplary embodiment;

10E is a diagram for describing a case in which a telephone function of a second mobile device is activated from among a first mobile device and a second mobile device that are separated from each other in a two-phone mode, in accordance with an exemplary embodiment;

11A is a diagram for describing device ID information and SIM information that is stored in each device from a first mobile device and a second mobile device, according to another exemplary embodiment;

11B is a diagram for describing device ID information and SIM information that is stored in each device from a first mobile device and a second mobile device, according to another exemplary embodiment;

FIG. 12A and 12B are diagrams for describing an idea of a first scenario in which a first mobile device and a second mobile device receive SIM information from a mobile operator server and transmit a request for using SIM information, in accordance with an exemplary embodiment;

13A is a timing diagram of a method for performing a mobile communication function by a first mobile device according to a request for transmitting SIM information and a request for using SIM information of a first mobile device based on the first scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment;

13B is a timing diagram of a method for performing a mobile communication function by a second mobile device according to a request for transmitting SIM information and a request for using SIM information of a second mobile device based on the first scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment;

13C is a timing diagram of a method for performing a mobile communication function by a first mobile device according to a request for transmitting SIM information of a second mobile device and a request for using SIM information of a first mobile device based on the first scenario, while the first mobile device and the second mobile device are connected to each other , in accordance with an exemplary embodiment;

13D is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for transmitting SIM information of a first mobile device and a request for using SIM information of a second mobile device based on the first scenario, while the first mobile device and the second mobile device are connected to each other another, in accordance with an exemplary embodiment;

FIG. 14A is a timing chart of a method for performing a mobile communication function by a first mobile device according to a request for transmitting SIM information and a request for using SIM information of a first mobile device based on the first scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment;

FIG. 14B is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for transmitting SIM information and a request for using SIM information of a second mobile device based on the first scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment;

14C is a timing chart of a method for performing a mobile communication function by a first mobile device according to a request for transmitting SIM information of a second mobile device and a request for using SIM information of a first mobile device based on the first scenario, while the first mobile device and the second mobile device are separated from each other a friend, in accordance with an exemplary embodiment;

Fig.14D is a timing diagram of a method for performing a mobile communication function by a second mobile device according to a request for transmitting SIM information of a first mobile device and a request for using SIM information of a second mobile device based on the first scenario, while the first mobile device and the second mobile device are separated from each other a friend, in accordance with an exemplary embodiment;

FIG. 15 is a diagram for describing an idea of a second scenario in which a first mobile device and a second mobile device that previously store SIM information transmit a SIM usage request to a mobile operator server, in accordance with an exemplary embodiment;

FIG. 16A is a timing chart of a method for performing a mobile communication function by a first mobile device according to a request for using SIM information of a first mobile device based on the second scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment ;

16B is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for using SIM information of a second mobile device based on a second scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment ;

FIG. 16C is a timing chart of a method for performing a mobile communication function by a first mobile device according to a request for using SIM information of a second mobile device based on the second scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment ;

FIG. 16D is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for using SIM information of the first mobile device based on the second scenario, while the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment ;

17A is a timing diagram of a method for performing a mobile communication function by a first mobile device according to a request for using SIM information of a first mobile device based on a second scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment ;

17B is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for using SIM information of a second mobile device based on the second scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment ;

17C is a timing chart of a method for performing a mobile communication function by a first mobile device according to a request for using SIM information of a second mobile device based on the second scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment ;

17D is a timing chart of a method for performing a mobile communication function by a second mobile device according to a request for using SIM information of the first mobile device based on the second scenario, while the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment ;

FIG. 18A and 18B are diagrams for describing an idea of a third scenario in which SIM information is previously stored in one of any of the first mobile device and the second mobile device, in accordance with an exemplary embodiment;

19A is a timing diagram of a method for performing a mobile communication function by a first mobile device when the second mobile device transmits a request for using the second SIM information stored in the second downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are connected with a friend, in accordance with an exemplary embodiment;

FIG. 19B is a timing chart of a method of performing a mobile communication function by a first mobile device when the first mobile device transmits a request for using the second SIM information stored in the second downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are connected with a friend, in accordance with an exemplary embodiment;

FIG. 19C is a timing chart of a method for performing a mobile communication function by a second mobile device when the second mobile device transmits a request to use the first SIM information stored in the first downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are connected with a friend, in accordance with an exemplary embodiment;

19D is a timing diagram of a method for performing a mobile communication function by a second mobile device when the first mobile device transmits a request for using the first SIM information stored in the first downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are connected with a friend, in accordance with an exemplary embodiment;

20A is a timing chart of a method for performing a mobile communication function by a first mobile device when the first mobile device transmits a request for using the second SIM information stored in the second downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are separated from a friend, in accordance with an exemplary embodiment;

FIG. 20B is a timing chart of a method for performing a mobile communication function by the first mobile device when the second mobile device transmits a request for using the second SIM information stored in the second downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are separated from a friend, in accordance with an exemplary embodiment;

20C is a timing chart of a method for performing a mobile communication function by a second mobile device when the second mobile device transmits a request for using the first SIM information stored in the first downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are separated from a friend, in accordance with an exemplary embodiment;

20D is a timing diagram of a method for performing a mobile communication function by a second mobile device when the first mobile device transmits a request for using the first SIM information stored in the first downloadable SIM based on the third scenario, while the first mobile device and the second mobile device are separated from a friend, in accordance with an exemplary embodiment;

21 is a diagram for describing device ID information and SIM information that is stored in each device from a first mobile device and a second mobile device, according to another exemplary embodiment;

22A is a timing chart of a method for performing a mobile communication function by a first mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device are the same, and the telephone functions of the first and second mobile devices are both applicable, in accordance with an exemplary embodiment implementation;

FIG. 22B is a timing chart of a method for performing a mobile communication function by a second mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device are the same, and the telephone functions of the first and second mobile devices are both applicable, in accordance with an exemplary embodiment implementation;

FIG. 22C is a timing chart of a method for performing a mobile communication function by the first mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device is the same, and only the telephone function of the first mobile device is applicable, in accordance with an exemplary embodiment;

FIG. 22D is a timing chart of a method for performing a mobile communication function by a second mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device is the same, and only the telephone function of the first mobile device is applicable, in accordance with an exemplary embodiment;

FIG. 22E is a timing chart of a method for performing a mobile communication function by a second mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device is the same, and only the telephone function of the second mobile device is applicable, in accordance with an exemplary embodiment;

FIG. 22F is a timing chart of a method for performing a mobile communication function by the first mobile device when the device ID information of the first mobile device and the device ID information of the second mobile device is the same, and only the telephone function of the second mobile device is applicable, in accordance with an exemplary embodiment;

FIG. 23 is a block diagram of a second mobile device configured to share a first telephone number of a first mobile device in a mobile communication system, in accordance with an exemplary embodiment;

24 is a flowchart of a method for providing a mobile communication service using a second mobile device sharing a first telephone number of a first mobile device, in accordance with an exemplary embodiment;

25 is a diagram for describing synchronization of the history of recent calls between the first mobile device and the second mobile device, in accordance with an exemplary embodiment;

FIG. 26 is a flowchart of a method for synchronizing the histories of recent calls when the first mobile device and the second mobile device are separated from each other, in accordance with an exemplary embodiment;

FIG. 27 is a table of a recent call history database stored in a device in accordance with an exemplary embodiment; FIG.

FIG. 28 is a flowchart of a method for synchronizing the histories of recent calls when the first mobile device and the second mobile device are connected to each other, in accordance with an exemplary embodiment;

29 is a diagram for describing a mobile communication system including a wearable device in accordance with an exemplary embodiment;

FIG. 30 is a timing chart of a method of making a telephone call using a stand-alone wearable device instead of a first mobile device, in accordance with an exemplary embodiment;

FIG. 31 is a timing chart of a method for making a phone call when the wearable device cannot receive the call, in accordance with an exemplary embodiment;

Fig. 32 is a timing chart of a method of making a telephone call by a first mobile device connected to a wearable device of the "companion" type ("additional"), in accordance with an exemplary embodiment;

FIG. 33 is a timing chart of a method for receiving a call made to a first mobile device by a wearable companion device, in accordance with an exemplary embodiment;

Fig. 34 is a timing chart of a method of making a telephone call using an autonomous type portable device instead of a second mobile device, which is a card type phone (cardphone), in accordance with an exemplary embodiment;

Fig. 35 is a timing chart of a method of making a telephone call instead of a second mobile device when the wearable device cannot receive the call, in accordance with an exemplary embodiment;

Fig. 36 is a timing chart of a method of making a telephone call by a second mobile device connected to a companion-type wearable device, in accordance with an exemplary embodiment; and

Fig. 37 is a timing chart of a method for receiving a call made to a second mobile device by a wearable companion device, in accordance with an exemplary embodiment.

An exemplary embodiment of the invention

Some exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, one or more exemplary embodiments may be implemented in many different forms and should not be construed as being limited by the exemplary embodiments set forth herein. More preferably, the exemplary embodiments described herein are provided so that this disclosure is complete and complete, and fully conveys the idea of one or more exemplary embodiments to those skilled in the art. In the following description, well-known functions or structures may not be described in detail since they complicate the description of one or more exemplary embodiments with unnecessary details, and similar numerical reference numbers in the drawings indicate similar or identical elements throughout the description.

In the description, when a region is “connected” to another region, the regions can not only be “directly connected”, but can also be “electrically connected” by another device between them. Furthermore, when the region “includes” an element, the region may further include other elements.

As used herein, the term “and / or” encompasses any and all combinations of one or more of the related list items. Expressions such as “at least one of”, if preceded by a list of items, modify the entire list of items, rather than modifying individual items in the list.

In the description, making a phone call covers both receiving a call and a phone call.

Hereinafter, one or more exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a diagram for describing a mobile communication system 1 in which various mobile devices make a call using the same phone number, in accordance with an exemplary embodiment.

Referring to FIG. 1, the mobile communication system 1 includes a mobile operator server 10, a first mobile device 20 of user A, a second mobile device 30 of user A, and mobile device 40 of user B. In mobile communication system 1, the first mobile device 20, the second mobile device 30 and the mobile device 40 may each be a device having a mobile communication function, such as a smartphone, tablet device, or personal digital assistant (PDA). For example, the first and second mobile devices 20 and 30 may be two types of devices. Hereinafter, for example, it is believed that the first mobile device 20 is a smartphone, and the second mobile device 30 is a card phone, but one or more exemplary embodiments are not limited to this. The telephone card will be described in detail with reference to the accompanying drawings.

User A may own a first mobile device 20, which is a smartphone, and a second mobile device 30, which is a card phone. In the mobile communication system 1, the phone number of the first mobile device 20 and the phone number of the second mobile device 30 are the same, that is, "+ 82-10-AAAA-BBBB". In other words, the first mobile device 20 and the second mobile device 30 can share some phone number.

Accordingly, when user B calls "+ 82-10-AAAA-BBBB" using mobile device 40, user A can talk to user B using first mobile device 20 or second mobile device 30.

Mobile carrier means any facility capable of providing mobile services, such as SK Telecom and KT in the Republic of Korea, and Verizon Wireless, AT&T, Sprint Nextel, and T-Mobile USA in the United States of America. Mobile carrier server 10 may mean a server that is controlled by a mobile carrier to provide a mobile service to consumers.

The server 10 of the mobile operator can determine that the phone number "+ 82-10-XXXX-XXXX" is currently assigned to the mobile device 40 of user B. In addition, the server 10 of the mobile operator can determine that one phone number is "+ 82- 10-AAAA-BBBB "is currently assigned to both the first mobile device 20 and the second mobile device 30 of user A.

When the mobile device 40, with the assigned phone number "+ 82-10-XXXX-XXXX", calls the phone number "+ 82-10-AAAA-BBBB", the mobile operator’s server 10 can forward the telephone call to the first mobile device 20 or second mobile device 30 with the assigned phone number "+ 82-10-AAAA-BBBB".

In other words, the first and second mobile devices 20 and 30 can both perform a mobile communication function, being subscribed to the services of the mobile communication system 1, without having to assign different telephone numbers to the server 10 of the mobile operator. Meanwhile, in FIG. 1, the number of mobile devices belonging to user A is two, that is, the first and second mobile devices 20 and 30, but this is only an example, and user A may own two or more mobile devices having the same phone number.

2 is a diagram of a second mobile device 30 of user A in accordance with an exemplary embodiment.

Turning to FIG. 2, the second mobile device 30 may be a card phone having a shape different from a smartphone. A telephone card can mean a mobile device with mobile functions like a smartphone, while having an ultra-compact or ultra-thin shape, similar to a credit card or transport card. In other words, like a smartphone, a phone card can be with an assigned phone number and make a phone call with another phone through the mobile communication system 1. For example, since only subminiature modules are installed on the telephone card, so that the telephone card is ultra-thin, the telephone card can perform only simple functions, such as a telephone function or an input / output function, from among various functions of a smartphone, but one or more exemplary embodiments are not limited to this.

The second mobile device 30, implemented in the form of a telephone card, may include, for example, a display device 311, for example, a display unit, and an Input interface 313, for example, an input unit, on the front surface.

The display device 311 may display information inputted through the input interface 313. For example, the display device 311 may display numbers entered via the auxiliary keyboard of the input interface 313, the contact list stored in the second mobile device 30, or the caller information of the received telephone call. The display device 311 may perform a display function of various types of information processed by the second mobile device 30.

The input interface 313 may be an auxiliary keyboard with physical buttons. The input interface 313 may be a keypad, including, but not limited to, numbered buttons, call connection buttons, and call end buttons and the like.

3 is a diagram of a second mobile device 30 of user A, according to another exemplary embodiment.

Referring to FIG. 3, the second mobile device 30 of FIG. 3 may include a touch screen 315 on a front surface. The second mobile device 30 of FIG. 3 is implemented as a card phone including a touch screen 315 into which the functions of the display device 311 and the input interface 313 are integrated.

Accordingly, the second mobile device 30 of FIG. 3, implemented as a card phone, can receive a number or character through a programmable keyboard displayed on the touch screen 315, and can display various types of information processed by the second mobile device 30, such as a contact list or caller information for a received phone call, via the touch screen 315.

The phone card is not limited to the above description and can be implemented with various elements and functions.

4 is a block diagram of a second mobile device 30 in accordance with an exemplary embodiment.

Referring to FIG. 4, the second mobile device 30 includes a user interface (UI) 310, for example, a UI unit, a controller 320, a communicator 330, for example, a communication unit, memory 340, for example, a storage device or memory unit, and an identification module Subscriber (SIM) 350. The second mobile device 30 according to one or more exemplary embodiments may include additional hardware components or may omit some of the hardware components shown in FIG. 4. Meanwhile, the second mobile device 30 may be, but is not limited to, the card telephone described above.

UI 30 may be the hardware used by the user to enter data to control the second mobile device 30. For example, UI 310 may be an auxiliary keyboard, a membrane key switch, a touch screen (capacitive type, pressure sensitive resistive film type, such as with infrared radiation detection, such as with an ultrasonic conductive surface, such as with an integrated voltage measurement, or using the piezoelectric effect type), a wheel with an ultrasonic conductive surface Tew, or switch functions, but is not limited to this.

UI 310 may include a display device 311, an input interface 313, and a touch screen 315 described above with reference to FIG. 2 and 3. In addition, UI 310 may include an interface, such as an interface unit, for notifying user A of information processed by the second mobile device 30, such as a speaker or buzzer, outputting an audio signal or a speech signal, or a vibration motor with output vibration signal. For example, UI 310 may accept user inputs, providing UI screens for setting various functions, such as a pop-up UI to activate or deactivate the telephone function of the second mobile device 30, a pop-up UI to activate or deactivate the two-phone mode, and a pop-up UI to enable or disable short range wireless functions.

The controller 320 can control all the operations of the second mobile device 30. The controller 320 can execute programs stored in the memory 340 to control the functions and operations of the UI 310, communicator 330, memory 340, and SIM 350. The controller 320 can activate the telephone function of the second mobile device 30 after determining whether the telephone function of the first mobile device 20 is turned off, and also control the communicator 330 to transmit a request for transmitting SIM information or a request for using SIM information to the operator’s server 10 bile communication.

The communicator 330 may include at least one hardware component enabling the second mobile device 30 to be connected to another mobile device, such as the mobile device 40 of FIG. 1, or the mobile operator’s server 10 wirelessly or wired. For example, the communicator 330 may include a short-range wireless communication module and a mobile communication module.

The short-range wireless communication module in the communicator 330 may include a Bluetooth communication module, a BLE (low power / Bluetooth) communication module, a short-range wireless communication module (NFC), a Wi-Fi standard communication module, and a standard communication module Wi-Fi direct (WFD), a Zigbee communications module, an infrared communications association (IrDA) communications module, or an ultra-wideband mobile communications (UWB) module, but are not limited to this.

The communicator mobile communication module 330 is a module for performing mobile communication with another mobile device via a base station provided by a mobile operator according to any of various communication methods, such as second generation (2G) mobile communication, third generation (3G) mobile communication and mobile fourth generation (4G) communication in the mobile communication system 1 of FIG. 1, and may be a module for receiving any type of data according to the transmission and reception of a voice call, video call, or text / multimedia about the message. For example, the communicator 330 may receive SIM information from the server 10 of the mobile operator of FIG. 1.

When the telephone function of the second mobile device 30 is activated, the communicator 330 can exchange various types of information with the mobile operator’s server 10 or other mobile devices, such as the first mobile device 20 and the mobile device 40, so that the second mobile device 30 performs the mobile communication function. For example, the communicator 330 may transmit a SIM information transfer request or a SIM information usage request to the mobile operator’s server 10. In addition, the communicator 330 can exchange SIM information with the first mobile device 20, and receive from the first mobile device 20 various types of information about the first mobile device, for example, an activated state of the telephone function in the first mobile device 20.

Memory 340 may store programs for processes and directives of controller 320, and store data input to or output from second mobile device 30. For example, memory 340 may store device identification information (ID), contact information, text message information, credit card information, or transport card information from the second mobile device 30. Device ID information may include the serial number and IMEI of the second mobile device 30, which are internal to the second mobile device 30, and may also include various types of information, such as model number and manufacturer information of the second mobile device 30.

The memory 340 may include at least one type of storage medium from a memory such as flash memory, memory such as a hard disk drive, memory such as a micro multimedia card, memory such as a card (e.g., Secure Digital (SD) format memory or extra large digital memory (XD)), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk drive and optical disk.

SIM 350 is a module that stores SIM information, including information related to a mobile service provided by a mobile operator, such as an Integrated Circuit Chip Identification (ICCID), International Mobile Subscriber Identification Number (IMSI), authentication key, and location id SIM 350 may be a downloadable SIM type module that stores SIM information received from the mobile operator’s server 10. For example, SIM 350 may receive from the server 10 and store SIM information, including subscriber information of some telephone number registered in the mobile communication system 1. One or more exemplary embodiments is not limited to this, and alternatively, the SIM 350 may be a module that reads and stores information stored in a SIM card or universal SIM (USIM) card when a SIM card or USIM card is inserted into the SIM 350 .

5 is a diagram for describing device identification information and SIM information that is stored in each device from the first mobile device 20 and the second mobile device 30, in accordance with an exemplary embodiment.

5, the memory 510 of the first mobile device 20 may store device ID information regarding the first mobile device 20. The device ID information may include the serial number and international mobile equipment identifier (IMEI) of the first mobile device 20, which are internal to the first mobile device 20. In addition, the device ID information may include various types of information, such as model number and manufacturer information of the first mobile device 20. Here l, the serial number and IMEI of the first mobile device 20 are internal to the first mobile device, as described above, and usually have combinations of different numbers / numbers in accordance with mobile devices.

The SIM 520 of the first mobile device 20 is a downloadable SIM, and may include phone number and ICCID information. Here, ICCID information stored in the SIM 520 of the first mobile device 20 may correspond to information displayed on some phone number assigned by the mobile operator. Accordingly, the server 10 of FIG. 1 of the mobile operator can identify the user of the first mobile device 20 and the phone number of the first mobile device 20 using ICCID information stored in SIM 520.

The SIM 350 of the second mobile device 30 is a downloadable SIM, and may include phone number and ICCID information. Here, the ICCID stored in the SIM 350 of the second mobile device 30 may correspond to information displayed on some phone number assigned by the mobile operator. Accordingly, the server 10 of FIG. 1 of the mobile operator can identify the user of the second mobile device 30 and the phone number of the second mobile device 30 using the ICCID stored in SIM 350.

As described above with reference to FIG. 1, in the mobile communication system 1, the telephone number “+ 10-82-AAAA-BBBB” can be assigned to the first and second mobile devices 20 and 30. In addition, the ICCID in the SIM 350 or 520 is displayed to some phone number. Accordingly, the mobile operator’s server 10 can manage the ICCIDs in SIM 350 and ICCIDs in SIM 520 as the same. Alternatively, the mobile operator server 10 may manage the ICCIDs in SIM 350 and ICCIDs in SIM 520 as being different from each other.

Hereinafter, for convenience of description, the device ID information and SIM information of the first mobile device 20 will be respectively called the first device ID information and the first SIM information, and the device ID information and SIM information of the second mobile device 30 will be respectively called the second device ID information and the second SIM information .

6 is a timing chart of a method of making a call from the first mobile device 20 and the second mobile device 30, which have the same phone number and belong to user A, to mobile device 40 of user B in mobile communication system 1 in accordance with an exemplary embodiment.

Turning to FIG. 6, the telephone number “+ 10-82-AAAA-BBBB” may be assigned to the first and second mobile devices 20 and 30 by the mobile operator server 10.

In operation 610, the mobile operator’s server 10 registers the first mobile device 20 as the primary mobile device.

In operation 620, the mobile device server 10 registers the second mobile device 30 as an additional (replacement) mobile device.

In operation 630, user B requests a telephone call at the telephone number “+ 10-82-AAAA-BBBB” using mobile device 40.

In operation 640, the mobile operator’s server 10 identifies a list of the first and second mobile devices 20 and 30 belonging to user A.

In operation 650, if user A has activated the telephone function of the first mobile device 20, which is the primary mobile device, the mobile operator server 10 may transmit the request of the mobile phone device 40 to the first mobile device 20. However, if user A has activated the telephone function of the second mobile device 30, which is an additional mobile device, the mobile operator’s server 10 may transmit a request to the mobile phone call device 40 per watt Another mobile device 30.

In other words, when the same phone number “+ 10-82-AAAA-BBBB” is assigned to the first and second mobile devices 20 and 30, user A can talk to user B using any device from the first and second mobile devices 20 and 30.

7 is a diagram for describing a server 10 of a mobile operator controlling mobile devices belonging to user A, in accordance with an exemplary embodiment.

Turning to FIG. 7, the mobile operator server 10 can identify the first and second mobile devices 20 and 30 belonging to user A. The mobile operator server 10 can identify the first and second mobile devices 20 and 30 using the first and second device ID information, and first and second SIM information stored in the first and second mobile devices 20 and 30. As described above, the first mobile device 20 may be a smartphone, and the second mobile device 30 may be a card phone. Accordingly, user A can register the first mobile device 20, which has broader functionality than the second mobile device 30, as the primary mobile device. In addition, user A can register the second mobile device 30 as an additional mobile device. The mobile operator’s server 10 can identify and control the primary mobile device and the secondary mobile device using the first and second device ID information from the first and second mobile devices 20 and 30.

Fig. 8A is a diagram for describing the coupling, for example, a connection or association, of the first mobile device 20 and the second mobile device 30 in two-telephone mode, in accordance with an exemplary embodiment, and Fig. 8B is a diagram for describing separation, for example, disconnection , the first mobile device 20 and the second mobile device 30 in dual-telephone mode, in accordance with an exemplary embodiment.

The two-phone mode may be a mode for using two different mobile devices with the same phone number assigned, such as the first and second mobile devices 20 and 30 with the assigned phone number "+ 10-82-AAAA-BBBB", in the mobile communication system 1 Figure 1. Here, two-phone mode is a term used to indicate that two devices are present, as described in one or more exemplary embodiments. Thus, the term two-phone mode can be replaced by another term, such as N-phone mode or multi-phone mode, when N devices having the same phone number should be used in the mobile communication system 1 of FIG. 1, where N, is a natural number greater than or equal to 2. In other words, the term two-phone mode may vary in various ways and is not limited thereto.

Referring to FIG. 8A, the first and second mobile devices 20 and 30 can communicate with each other, establishing a connection using short-range wireless communication. Examples of short-range wireless communications include wireless communications such as Bluetooth, NFC, and Wi-Fi.

Regarding the first mobile device 20, when the two-phone mode is to be activated, the first mobile device 20 can be connected to the second mobile device 30 using short-range wireless communication using the UI 810 requesting whether to connect to the second mobile device 30. Similarly with respect to the second mobile device 30, when the two-phone mode is to be activated, the second mobile device 30 can be connected to the first mobile device 20 using wireless short-range communication using the UI 820 requesting, to carry out whether the connection to the first mobile device 20.

Referring to FIG. 8B, with respect to the first mobile device 20, when the two-phone mode is activated, the first mobile device 20 can be untied from the second mobile device 30 using UI 830 requesting to disconnect with the second mobile device 30. Similarly, with respect to the second mobile device 30, when the two-phone mode is activated, the second mobile device 30 can be untied from the first mobile device 20 using UI 840, asking whether to disconnect from the first mobile device 20. Separating the first and second mobile devices 20 and 30 by disconnecting does not mean that the two-phone mode is turned off, but it can mean that user A wants to use any device from the first and second mobile devices 20 and 30, while the two-phone the mode is activated.

9 is a diagram for describing manually activating a telephone function of a first mobile device 20 or a telephone function of a second mobile device 30 in dual-telephone mode, in accordance with an exemplary embodiment.

In two-phone mode, user A may wish to make a call to another mobile device using one device from the first and second mobile devices 20 and 30. In other words, in two-phone mode, user A can enter information to activate the telephone function of one device from the first and the second mobile devices 20 and 30 to select one device from the first and second mobile devices 20 and 30. For example, with reference to FIG. 9, user A can enter information to activate the telephone function of the first mobile device. beating device 20, using UI 910, asking whether to activate the telephone function of the first mobile device 20, which is displayed on the first mobile device 20. Alternatively, user A can enter information to activate the telephone function of the second mobile device 30, using UI 920, requesting to activate whether the telephone function of the second mobile device 30 is displayed on the second mobile device 30.

When the telephone function of the first mobile device 20 is activated, the telephone function of the second mobile device 30 may be automatically turned off. Similarly, when the telephone function of the second mobile device 30 is activated, the telephone function of the first mobile device 20 may be automatically turned off.

10A is a flowchart of a method of activating a telephone function of a first mobile device 20 or a telephone function of a second mobile device 30, in accordance with an exemplary embodiment.

In operation 1001, the first mobile device 20 determines whether a two-phone mode is set. If the two-phone mode is set, operation 1002. If the two-phone mode is not set, the method ends, since it is not necessary to determine which of the telephone functions of the first and second mobile devices 20 and 30 is to be activated.

In operation 1002, the first mobile device 20 determines whether the telephone function of the first mobile device 20 is applicable. For example, the telephone function of the first mobile device 20 may not work normally for one of various reasons, such as a failure or disconnection of the mobile communication module included in the first mobile device 20. Thus, in operation 1002, the first mobile device 20 determines whether the telephone function is operating normally. If the telephone function is applicable, operation 1003 is performed. If the telephone function is not applicable, operation 1008 is performed.

In operation 1003, the first mobile device 20 determines whether automatic activation of the telephone function is set. If the two-phone mode is set, the first mobile device 20 can be set by the default device so that the telephone function of the first mobile device 20 is activated before that of the second mobile device 30. In other words, the first mobile device 20 can be set so that the phone function it is automatically activated in two-telephone mode, instead of manually activating the telephone function by the UI 910, as described above with reference to FIG. 9. If automatic activation of the telephone function is set, operation 1005 is performed. If automatic activation of the telephone function is not specified, operation 1004 is performed.

In operation 1004, the first mobile device 20 determines whether a manual activation of the telephone function is set. The first mobile device 20 determines whether information is entered in order to manually activate the telephone function. If manual activation of the telephone function is specified, operation 1005 is performed. If manual activation of the telephone function is not specified, operation 1008 is performed.

In operation 1005, the first mobile device 20 activates the telephone function of the first mobile device 20. The telephone function of the second mobile device 30 can be automatically disabled.

In operation 1006, the second mobile device 30 determines whether a two-phone mode is set. If the two-phone mode is set, operation 1007 is performed. If the two-phone mode is not set, the method ends since it is not necessary to determine which of the telephone functions of the first and second mobile devices 20 and 30 is to be activated.

In operation 1007, the second mobile device 30 determines whether the telephone function of the second mobile device 30 can be used. For example, the telephone function of the second mobile device 30 may not work normally for one of various reasons, such as a failure or disconnection of the mobile communication module included in the second mobile device 30. Thus, in operation 1007, the second mobile device 30 determines whether the telephone function is operating normally. If the telephone function is applicable, operation 1008 is performed. If the telephone function is not applicable, operation 1003 is performed.

In operation 1008, the second mobile device 30 determines whether automatic activation of the telephone function is set. The second mobile device 30 can be set by the default device so that the phone function of the second mobile device 30 is activated before that of the first mobile device 20. In other words, the second mobile device 30 can be set so that the phone function is automatically activated in two-phone mode , instead of manually activating the telephone function by UI 920, as described above with reference to FIG. 9. If automatic activation of the telephone function is specified, operation 1010 is performed. If automatic activation of the telephone function is not specified, operation 1009 is performed.

In operation 1009, the second mobile device 30 determines whether manual activation of the telephone function is set. The second mobile device 30 determines whether information has been entered to manually activate the telephone function. If manual activation of the telephone function is specified, operation 1010 is performed. If manual activation of the telephone function is not specified, operation 1003 is performed.

In operation 1010, the second mobile device 30 activates the telephone function for the second mobile device 30. The telephone function of the first mobile device 20 may be automatically turned off.

10B is a diagram for describing a case in which the telephone function of the first mobile device 20 is activated from among the first mobile device 20 and the second mobile device 30, which are connected to each other in dual-telephone mode, in accordance with an exemplary embodiment.

Referring to FIG. 10B, the first mobile device 20 may display a UI 1020 indicating that the telephone function is activated if the telephone function of the first mobile device 20 is activated by operation 1005 of FIG. 10A.

10C is a diagram for describing a case in which the telephone function of the second mobile device 30 is activated from among the first mobile device 20 and the second mobile device 30 that are connected to each other in two-telephone mode, in accordance with an exemplary embodiment.

Referring to FIG. 10C, the second mobile device 30 may display a UI 1030 indicating that the telephone function is activated if the telephone function of the first mobile device 30 is activated by operation 1010 of FIG. 10A.

10D is a diagram for describing a case in which the telephone function of the first mobile device 20 is activated from among the first mobile device 20 and the second mobile device 30, which are separated from each other, in dual-telephone mode, in accordance with an exemplary embodiment.

Referring to FIG. 10D, the first mobile device 20 may display a UI 1040 indicating that the telephone function is activated if the telephone function of the first mobile device 20 is activated by operation 1005 of FIG. 10A.

10E is a diagram for describing a case in which the telephone function of the second mobile device 30 is activated from among the first mobile device 20 and the second mobile device 30, which are separated from each other, in two-telephone mode, in accordance with an exemplary embodiment.

Referring to FIG. 10E, the second mobile device 30 may display a UI 1050 indicating that the telephone function is activated if the telephone function of the first mobile device 30 is activated by operation 1010 of FIG. 10A.

11A is a diagram for describing device ID information and SIM information that is stored in each device from the first mobile device 20 and the second mobile device 30, according to another exemplary embodiment.

Referring to FIG. 11A, the same phone number “+ 82-10-AAAA-BBBB” may be assigned to the first and second mobile devices 20 and 30. In the first device ID information of the first mobile device 20, the IMEI of the first mobile device 20 may be set to “ 35 abcdef 465607 8 ". The ICCID in the first SIM information of the first mobile device 20 may be "abcd efgh 0710 9991 604." Meanwhile, in the second device ID information of the second mobile device 30, the IMEI of the second mobile device 30 may have a value of "23 abcxyz 576501 1", which is different from that for IMEI in the ID information of the first device. In addition, the ICCID in the second SIM information of the second mobile device 30 may have a value of "abcd efgh 0710 9991 604", which is the same as that of the ICCID in the first SIM information.

Turning to FIG. 11A, the first and second mobile devices 20 and 30 with the same phone number assigned “+ 82-10-AAAA-BBBB” have the same ICCID value but different IMEI.

11B is a diagram for describing device ID information and SIM information that is stored in each device from the first mobile device 20 and the second mobile device 30, according to another exemplary embodiment.

Referring to FIG. 11B, the same phone number “+ 82-10-AAAA-BBBB” may be assigned to the first and second mobile devices 20 and 30. In the first device ID information of the first mobile device 20, the IMEI of the first mobile device 20 may be set to “ 35 abcdef 465607 8 ". The ICCID in the first SIM information of the first mobile device 20 may be "abcd efgh 0710 9991 604". Meanwhile, in the second device ID information of the second mobile device 30, the IMEI of the second mobile device 30 may have a value of "23 abcxyz 576501 1", which differs from that of the IMEI in the first device ID information. The ICCID in the second SIM information of the second mobile device 30 may have a value of "abcd hgfe 0710 9991 604", which is different from that for the ICCID in the first SIM information.

Turning to FIG. 11B, the first and second mobile devices 20 and 30 with the same phone number “+ 82-10-AAAA-BBBB” have a different ICCID and a different IMEI.

In the exemplary embodiments described with reference to FIG. 11A and 11B, SIM modules 520 and 350 included in the first mobile device 20 and the second mobile device 30 may have the same ICCID or a different ICCID. However, in the exemplary embodiments of FIG. 11A and 11B, the same telephone number “+ 82-10-AAAA-BBBB” may be assigned to the first and second mobile devices 20 and 30.

FIG. 12A to 20D are diagrams related to the exemplary embodiments of FIG. 11A and 11B.

FIG. 12A to 14D are diagrams for describing various exemplary embodiments according to a first scenario in which the first and second SIM information, respectively, is not initially stored in the SIM modules 520 and 350 of the first and second mobile devices 20 and 30, but is received from the server 10 of the mobile operator if necessary, with the function of mobile communication. The first scenario may be associated with various exemplary embodiments, in which the first or second mobile device 20 or 30 requests the mobile operator’s server 10 to transmit or use the first or second SIM information, if necessary.

FIG. 15-17D are diagrams for describing various exemplary embodiments according to a second scenario in which the first and second SIM information is first stored in the SIM modules 520 and 350 of the first and second mobile devices 20 and 30, respectively, and the mobile communication function is executed if the first or second the mobile device 20 or 30 transmits a request for the use of the first or second SIM information to the server 10 of the mobile operator, if necessary. The second scenario may be associated with various exemplary embodiments in which the first or second mobile device 20 or 30 transmits only a request for using the first or second SIM information to the mobile operator’s server 10, if necessary.

FIG. 18-20D are diagrams for describing various exemplary embodiments according to a third scenario in which SIM information is initially stored in any of the SIM modules 520 and 350 of the first and second mobile devices 20 and 30, and the mobile communication function is executed if the first and second mobile devices 20 and 30 exchange SIM information if necessary. The third scenario may be associated with various exemplary embodiments in which the first and second mobile devices 20 and 30 exchange SIM information if necessary.

FIG. 12A and 12B are diagrams for describing an idea of a first scenario in which a first mobile device 20 and a second mobile device 30 that do not store SIM information receive SIM information from a mobile operator’s server 10 and transmit a SIM usage request, in accordance with an exemplary embodiment implementation.

In FIG. 12A and 12B, the first and second SIM information is not initially stored in the SIM modules 520 and 350 of the first and second mobile devices 20 and 30, respectively.

Referring to FIG. 12A, when it is required that the telephone function of the first mobile device 20 be activated in two-telephone mode, the first mobile device 20 requests the mobile operator’s server 10 to transmit the first SIM information. Accordingly, the mobile operator server 10 transmits the first SIM information to the first mobile device 20, and the first mobile device 20 stores the first SIM information in the SIM 520. Then, the first mobile device 20 transmits a request for using the first SIM information to the mobile operator server 10. When the server 10 of the mobile operator permits the request, the first mobile device 20 can perform the function of mobile communication in two-telephone mode.

Referring to FIG. 12B, when it is required that the telephone function of the second mobile device 30 be activated in dual-telephone mode, the second mobile device 30 requests the mobile operator’s server 10 to transmit the second SIM information. Accordingly, the mobile operator server 10 transmits the second SIM information to the second mobile device, and the second mobile device 30 stores the second SIM information in the SIM 350. Then, the second mobile device 30 transmits a request for using the second SIM information to the mobile operator server 10. When the server 10 of the mobile operator permits the request, the second mobile device 30 can perform mobile communication in two-telephone mode. the function

13A is a timing chart of a method for performing a mobile communication function by a first mobile device 20 according to a request for transmitting SIM information and a request for using SIM information of the first mobile device 20 based on the first scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other another, in accordance with an exemplary embodiment.

In operation 1301, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1302, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1303, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1304, the first mobile device 20 requests the server 10 of the mobile operator to transmit the first SIM information.

In operation 1305, the mobile operator’s server 10 transmits the first SIM information to the first mobile device 20.

In operation 1306, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1307, the first mobile device 20 transmits a request to use the first SIM information to the server 10 of the mobile operator.

In operation 1308, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1309, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the second mobile device 30.

13B is a timing chart of a method for performing a mobile communication function by a second mobile device 30 according to a SIM information transfer request and a SIM information activation request of the second mobile device 30 based on the first scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other another, in accordance with an exemplary embodiment.

In operation 1311, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1312, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1313, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. The activation of the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device.

In operation 1314, the second mobile device 30 requests the server 10 of the mobile operator to transmit the second SIM information.

In operation 1315, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 1316, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1317, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1318, the mobile operator’s server 10 permits a request to use the second SIM information.

In operation 1319, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the first mobile device 20.

13C is a timing chart of a method of performing a mobile communication function by the first mobile device 20, according to the request for transmitting SIM information of the second mobile device 30 and the request for using SIM information of the first mobile device 20, based on the first scenario, while the first mobile device 20 and the second mobile the device 30 is connected to each other, in accordance with an exemplary embodiment.

In operation 1321, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1322, the first mobile device 20 and the second mobile device 30 communicate with each other by establishing a short-range wireless connection.

In operation 1323, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1334, the second mobile device 30 requests the server 10 of the mobile operator to transmit the first SIM information to the first mobile device 20.

In operation 1325, the mobile operator server 10 transmits the first SIM information to the first mobile device 20.

In operation 1326, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1327, the first mobile device 20 transmits a request for using the first SIM information to the server 10 of the mobile operator.

In operation 1328, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1329, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a telephone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the second mobile device 30.

13D is a timing chart of a method for performing a mobile communication function by a second mobile device 30 according to a request for transmitting SIM information of a first mobile device 20 and a request for using SIM information of a second mobile device 30, based on the first scenario, while the first mobile device 20 and the second mobile device 30 are related to each other, in accordance with an exemplary embodiment.

In operation 1331, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1332, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1333, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1334, the first mobile device 20 requests the server 10 of the mobile operator to transmit the second SIM information to the second mobile device 30.

In operation 1335, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 1336, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1337, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1338, the mobile operator’s server 10 permits a request to use the second SIM information.

In operation 1339, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the first mobile device 20.

14A is a timing chart of a method for performing a mobile communication function by the first mobile device 20 according to the SIM information transfer request and the SIM information usage request of the first mobile device 20, based on the first scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other friend, in accordance with an exemplary embodiment.

In operation 1401, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1402, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1403, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1404, the first and second mobile devices 20 and 30 are separated from each other, completing a short-range wireless connection.

In operation 1405, the first mobile device 20 requests the server 10 of the mobile operator to transmit the first SIM information.

In operation 1406, the mobile operator’s server 10 transmits the first SIM information to the first mobile device 20.

In operation 1407, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1408, the first mobile device 20 transmits a request for using the first SIM information to the mobile operator’s server 10.

In operation 1409, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1410, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the second mobile device 30.

FIG. 14B is a timing chart of a method for performing a mobile communication function by the second mobile device 30 according to the SIM information transfer request and the SIM information usage request of the second mobile device 30, based on the first scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other friend, in accordance with an exemplary embodiment.

In operation 1411, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1412, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1413, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Enabling the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is the primary mobile device, instead of the first mobile device 20, which is the primary mobile device.

In operation 1414, the first and second mobile devices 20 and 30 are separated from each other, completing the short-range wireless connection.

In operation 1415, the second mobile device 20 requests the server 10 of the mobile operator to transmit the second SIM information.

In operation 1416, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 1417, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1418, the second mobile device 20 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1419, the mobile operator’s server 10 resolves the request for using the second SIM information.

In operation 1420, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the first mobile device 20.

FIG. 14C is a timing chart of a method of performing a mobile communication function by the first mobile device 20 according to a request for transmitting SIM information of a second mobile device 30 and a request for using SIM information of a first mobile device 20, based on the first scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

In operation 1421, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1422, the first mobile device 20 and the second mobile device 30 communicate with each other, establishing a short-range wireless connection.

In operation 1423, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1424, the first and second mobile devices 20 and 30 separate from each other, completing the short-range wireless connection.

In operation 1425, the second mobile device 30 requests the server 10 of the mobile operator to transmit the first SIM information to the first mobile device 20.

In operation 1426, the mobile operator server 10 transmits the first SIM information to the first mobile device 20.

In operation 1427, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1428, the first mobile device 20 transmits a request to use the first SIM information to the server 10 of the mobile operator.

In operation 1429, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1430, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the second mobile device 30.

14D is a timing chart of a method for performing a mobile communication function by the second mobile device 30, according to the request for transmitting SIM information of the first mobile device 20 and the request for using SIM information of the second mobile device 30, based on the first scenario, while the first mobile device 20 and the second mobile the device 30 is separated from each other, in accordance with an exemplary embodiment.

In operation 1431, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1432, the first and second mobile devices 20 and 30 communicate with each other as a short-range wireless connection is established.

In operation 1433, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1434, the first and second mobile devices 20 and 30 are separated from each other, completing a short-range wireless connection.

In operation 1435, the first mobile device 20 requests the mobile operator’s server 10 to transmit the second SIM information to the second mobile device 30.

In operation 1436, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 1437, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1438, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1439, the mobile operator’s server 10 permits a request to use the second SIM information.

In operation 1440, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the telephone function is not activated and there is no SIM information, the telephone call is not connected to the first mobile device 20.

FIG. 15 is a diagram for describing an idea of a second scenario in which the first mobile device 20 and the second mobile device 30, which previously store SIM information, transmit a request for using SIM information to a mobile operator server 10, in accordance with an exemplary embodiment.

Turning to FIG. 15, the first and second mobile devices 20 and 30 previously store the first and second SIM information in the SIM modules 520 and 350, respectively. For example, before two-phone mode is activated, the first and second mobile devices 20 and 30 preload the first and second SIM information from the mobile operator’s server 10 and store the first and second SIM information in SIM modules 520 and 350, respectively. The SIM modules 520 and 350 can pre-store the first and second SIM information, respectively, regardless of the activation state of the telephone functions of the first and second mobile devices 20 and 30.

When it is required that the telephone function of the first mobile device 20 be activated in two-telephone mode, the first mobile device 20 transmits a request for using the first SIM information to the server 10 of the mobile operator. When the server 10 of the mobile operator permits the request to use the first SIM information, the first mobile device 20 can perform the function of mobile communication in two-telephone mode.

If it is required that the telephone function of the second mobile device 30 be activated in two-telephone mode, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator. When the server 10 of the mobile operator permits the request for the use of the second SIM information, the second mobile device 30 can perform the function of mobile communication in two-telephone mode.

16A is a timing chart of a method for performing a mobile communication function by the first mobile device 20, according to a request for using SIM information of the first mobile device 20, based on the second scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other, in accordance with an exemplary embodiment.

In operation 1601, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1602, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1603, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1604, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1605, the first mobile device 20 transmits a request for using the first SIM information to the server 10 of the mobile operator.

In operation 1606, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1607, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is not requested for use, the telephone call is not connected to the second mobile device 30.

FIG. 16B is a timing chart of a method for performing a mobile communication function by a second mobile device 30 according to a request for using SIM information of the second mobile device 30 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other, in accordance with an exemplary embodiment.

In operation 1611, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1612, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1613, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1614, the second mobile device 20 activates the telephone function. The second mobile device 20 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1615, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1616, the mobile operator’s server 10 permits a request for using the second SIM information.

In operation 1617, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is not requested for use, a telephone call is not connected to the first mobile device 20.

Fig. 16C is a timing chart of a method for performing a mobile communication function by the first mobile device 20 according to a request for using SIM information of the second mobile device 30 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other, in accordance with an exemplary embodiment.

In operation 1621, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1622, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1623, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1624, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1625, the second mobile device 30 transmits a request for using the first SIM information to the server 10 of the mobile operator.

In operation 1626, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1627, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is not requested for use, the telephone call is not connected to the second mobile device 30.

Fig. 16D is a timing chart of a method for performing a mobile communication function by the second mobile device 30, according to a request for using SIM information of the first mobile device 20, based on the second scenario, while the first mobile device 20 and the second mobile device 30 are connected to each other, in accordance with an exemplary embodiment.

In operation 1631, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1632, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1633, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1634, the second mobile device 20 activates the telephone function. The second mobile device 20 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1635, the first mobile device 20 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1636, the mobile operator’s server 10 permits a request to use the second SIM information.

In operation 1637, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is not requested for use, a telephone call is not connected to the first mobile device 20.

FIG. 17A is a timing chart of a method for performing a mobile communication function by a first mobile device 20 according to a request for using SIM information of the first mobile device 20 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary an embodiment.

In operation 1701, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1702, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1703, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1704, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1705, the first and second mobile devices 20 and 30 are separated from each other, completing the short-range wireless connection.

In operation 1706, the first mobile device 20 transmits a request to use the first SIM information to the server 10 of the mobile operator.

In operation 1707, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1708, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is not requested for use, the telephone call is not connected to the second mobile device 30.

FIG. 17B is a timing chart of a method for performing a mobile communication function by the second mobile device 30 according to a request for using SIM information of the second mobile device 30 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary an embodiment.

In operation 1711, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1712, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1713, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1714, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1715, the first and second mobile devices 20 and 30 are separated from each other, completing a short-range wireless connection.

In operation 1716, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1717, the mobile operator’s server 10 permits a request to use the second SIM information.

In operation 1718, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is not requested for use, a telephone call is not connected to the first mobile device 20.

FIG. 17C is a timing chart of a method for performing a mobile communication function by the first mobile device 20 according to a request for using SIM information of the second mobile device 30 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary an embodiment.

In operation 1721, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1722, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1723, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1724, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1725, the first and second mobile devices 20 and 30 are separated from each other, completing a short-range wireless connection.

In operation 1726, the second mobile device 30 transmits a request for using the first SIM information to the server 10 of the mobile operator.

In operation 1727, the mobile operator’s server 10 permits a request to use the first SIM information.

In operation 1728, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is not requested for use, the telephone call is not connected to the second mobile device 30.

FIG. 17D is a timing chart of a method for performing a mobile communication function by the second mobile device 30 according to a request for using SIM information of the first mobile device 20 based on the second scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary an embodiment.

In operation 1731, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1732, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1733, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1734, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1735, the first and second mobile devices 20 and 30 are separated from each other, completing the short-range wireless connection.

In operation 1736, the first mobile device 20 transmits a request for using the second SIM information to the server 10 of the mobile operator.

In operation 1737, the mobile operator’s server 10 permits a request for using the second SIM information.

In operation 1738, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is not requested for use, a telephone call is not connected to the first mobile device 20.

FIG. 18A and 18B are diagrams for describing an idea of a third scenario in which SIM information is previously stored in any device from the first mobile device 20 and the second mobile device 30, in accordance with an exemplary embodiment.

In FIG. 18A, the first SIM information is previously stored in the SIM 520 of the first mobile device 20, but the second SIM information is not previously stored in the SIM 350 of the second mobile device 30. On the other hand, in FIG. 18B, the first SIM information is not previously stored in the SIM 520 the first mobile device 20, but the second SIM information is previously stored in the SIM 350 of the second mobile device 30. In other words, one of the SIM 520 or SIM 350 can pre-store the SIM information regardless of the activation state of the telephone function of the first or a second mobile device 20 or 30.

Referring to FIG. 18A, when it is required that the telephone function of the first mobile device 20 be activated in two-telephone mode, the first mobile device 20 transmits a request for using the first SIM information to the server 10 of the mobile operator. When the server 10 of the mobile operator permits the request to use the first SIM information, the first mobile device 20 can perform the function of mobile communication in two-telephone mode. Further, according to the third scenario, the first mobile device 20 makes a copy and provides the first SIM information to the second mobile device 30, so that the second mobile device 30 can use the copied first SIM information in the same way as it uses the second SIM information. In other words, the second mobile device 30 with the presence of the copied first SIM information can perform the function of mobile communication in two-phone mode using the copied first SIM information.

Referring to FIG. 18B, if it is required that the telephone function of the second mobile device 30 be activated in two-telephone mode, the second mobile device 30 transmits a request for using the second SIM information to the server 10 of the mobile operator. When the server 10 of the mobile operator permits the request for the use of the second SIM information, the second mobile device 30 can perform the function of mobile communication in two-telephone mode. Further, according to the third scenario, the second mobile device 30 makes a copy and provides the second SIM information to the first mobile device 20, so that the first mobile device 20 can use the copied second SIM information in the same way as it uses the first SIM information. In other words, the first mobile device 20 with the presence of the copied second SIM information can perform the function of mobile communication in two-telephone mode using the copied second SIM information.

19A is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the second mobile device 30 transmits a request for using the second SIM information stored in the SIM 350 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are related to each other, in accordance with an exemplary embodiment.

In operation 1901, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1902, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1903, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1904, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1905, the second mobile device 30 makes a copy of the second SIM information and provides the copied second SIM information to the first mobile device 20.

In operation 1906, the first mobile device 20 stores the copied second SIM information in the SIM 520.

In operation 1907, the second mobile device 30 deletes the second SIM information stored in the SIM 350.

In operation 1908, the second mobile device 30 transmits a request for using the copied second SIM information to the server 10 of the mobile operator.

In operation 1909, the mobile operator’s server 10 permits a request to use the copied second SIM information.

In operation 1910, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is deleted from the SIM 350, the telephone call is not connected to the second mobile device 30.

FIG. 19B is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the first mobile device 20 transmits a request for using the second SIM information stored in the SIM 350 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are related to each other, in accordance with an exemplary embodiment.

In operation 1911, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 1912, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1913, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1914, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 1915, the second mobile device 30 makes a copy of the second SIM information and provides the copied second SIM information to the first mobile device 20.

In operation 1916, the first mobile device 20 stores the copied second SIM information in the SIM 520.

In operation 1917, the second mobile device 30 deletes the second SIM information stored in the SIM 350.

In operation 1918, the first mobile device 20 transmits a request for using the copied second SIM information to the server 10 of the mobile operator.

In operation 1919, the mobile operator’s server 10 permits a request to use the copied second SIM information.

In operation 1920, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is deleted from the SIM 350, the telephone call is not connected to the second mobile device 30.

FIG. 19C is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the second mobile device 30 transmits a request for using the first SIM information stored in the SIM 520 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are related to each other, in accordance with an exemplary embodiment.

In operation 1921, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1922, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1923, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1924, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1925, the first mobile device 20 makes a copy of the first SIM information and provides the copied first SIM information to the second mobile device 30.

In operation 1926, the second mobile device 30 stores the copied first SIM information in the SIM 350.

In operation 1927, the first mobile device 20 deletes the first SIM information stored in the SIM 520.

In operation 1928, the second mobile device 30 transmits a request for using the copied first SIM information to the server 10 of the mobile operator.

In operation 1929, the mobile operator’s server 10 permits a request to use the copied first SIM information.

In operation 1930, when another mobile device, for example, the mobile device 40 of user B of FIG. 1, requests a telephone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is deleted from the SIM 520, a telephone call is not connected to the first mobile device 20.

19D is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the first mobile device 20 transmits a request for using the first SIM information stored in the SIM 520 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are related to each other, in accordance with an exemplary embodiment.

In operation 1931, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 1932, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 1933, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 1934, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 1935, the first mobile device 20 makes a copy of the first SIM information and provides the copied first SIM information to the second mobile device 30.

In operation 1936, the second mobile device 30 stores the copied first SIM information in the SIM 350.

In operation 1937, the first mobile device 20 deletes the first SIM information stored in the SIM 520.

In operation 1938, the first mobile device 20 transmits a request for using the copied first SIM information to the server 10 of the mobile operator.

In operation 1939, the mobile operator’s server 10 permits a request to use the copied first SIM information.

In operation 1940, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a telephone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 30. Since the first SIM information is deleted from the SIM 520, a telephone call is not connected to the first mobile device 20.

20A is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the first mobile device 20 transmits a request for using the second SIM information stored in the SIM 350 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

In operation 2001, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2002, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2003, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2004, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 2005, the second mobile device 30 makes a copy of the second SIM information and provides the copied second SIM information to the first mobile device 20.

In operation 2006, the first mobile device 20 stores the copied second SIM information in the SIM 520.

In operation 2007, the second mobile device 30 deletes the second SIM information stored in the SIM 350.

In operation 2008, the first and second mobile devices 20 and 30 separate from each other, completing the short-range wireless connection.

In operation 2009, the first mobile device 20 transmits a request for using the copied second SIM information to the server 10 of the mobile operator.

In operation 2010, the mobile operator’s server 10 permits a request to use the copied second SIM information.

In operation 2011, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is deleted from the SIM 350, the telephone call is not connected to the second mobile device 30.

FIG. 20B is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the second mobile device 30 transmits a request for using the second SIM information stored in the SIM 250 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

In operation 2021, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2022, the first mobile device 20 sets the two-phone mode. In addition, the second mobile device 30 sets the two-phone mode.

In operation 2023, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2024, the first mobile device 20 activates the telephone function. The first mobile device 20 may activate the telephone function manually or automatically. Enabling the telephone function of the first mobile device 20 may mean that user A wishes to make a call using the first mobile device 20, which is the primary mobile device.

In operation 2025, the second mobile device 30 makes a copy of the second SIM information and provides the copied second SIM information to the first mobile device 20.

In operation 2026, the first mobile device 20 stores the copied second SIM information in the SIM 520.

In operation 2027, the second mobile device 30 deletes the second SIM information stored in the SIM 350.

In operation 2028, the first and second mobile devices 20 and 30 separate from each other, completing the short-range wireless connection.

In operation 2029, the second mobile device 20 transmits a request for using the copied second SIM information to the server 10 of the mobile operator.

In operation 2030, the mobile operator’s server 10 permits a request to use the copied second SIM information.

In operation 2031, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the first mobile device 20. Since the second SIM information is deleted from the SIM 350, the telephone call is not connected to the second mobile device 30.

20C is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the second mobile device 30 transmits a request for using the first SIM information stored in the SIM 520 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

In operation 2041, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 2042, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2043, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2044, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 2045, the first mobile device 20 makes a copy of the first SIM information and provides the copied first SIM information to the second mobile device 30.

In operation 2046, the second mobile device 30 stores the copied first SIM information in the SIM 350.

In operation 2047, the first mobile device 20 deletes the first SIM information stored in the SIM 520.

In operation 2048, the first and second mobile devices 20 and 30 are separated from each other, completing the short-range wireless connection.

In operation 2049, the second mobile device 30 transmits a request for using the copied first SIM information to the mobile operator’s server 10.

In operation 2050, the mobile operator’s server 10 permits a request to use the copied first SIM information.

In operation 2051, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the telephone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 20. Since the first SIM information is deleted from the SIM 520, a telephone call is not connected to the first mobile device 20.

20D is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the first mobile device 20 transmits a request for using the first SIM information stored in the SIM 520 based on the third scenario, while the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

In operation 2061, the first mobile device 20 stores the first SIM information in the SIM 520.

In operation 2062, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2063, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2064, the second mobile device 30 activates the telephone function. The second mobile device 30 may activate the telephone function manually or automatically. Activating the telephone function of the second mobile device 30 may mean that user A wishes to make a call using the second mobile device 30, which is an additional mobile device, instead of the first mobile device 20, which is the main mobile device.

In operation 2065, the first mobile device 20 makes a copy of the first SIM information and provides the copied first SIM information to the second mobile device 30.

In operation 2066, the second mobile device 30 stores the copied first SIM information in the SIM 350.

In operation 2067, the first mobile device 20 deletes the first SIM information stored in the SIM 520.

In operation 2068, the first and second mobile devices 20 and 30 are separated from each other, completing a short-range wireless connection.

In operation 2069, the second mobile device 30 transmits a request for using the copied first SIM information to the mobile operator’s server 10.

In operation 2070, the mobile operator’s server 10 permits a request to use the copied first SIM information.

In operation 2071, when another mobile device, such as the mobile device 40 of user B of FIG. 1, requests a phone call by the phone number “+ 82-10-AAAA-BBBB”, the mobile operator’s server 10 attempts to connect the call to the second mobile device 20. Since the first SIM information is deleted from the SIM 520, a telephone call is not connected to the first mobile device 20.

21 is a diagram for describing device ID information and SIM information that is stored in each device from a first mobile device and a second mobile device, according to another exemplary embodiment.

Referring to FIG. 21, the same phone number “+ 82-10-AAAA-BBBB” may be assigned to the first and second mobile devices 20 and 30. In the first device ID information of the first mobile device 20, the IMEI of the first mobile device 20 may be set to “ 35 abcdef 465607 8 ". In addition, the ICCID in the first SIM information of the first mobile device 20 may be set to "abcd efgh 0710 9991 604". In the second device ID information of the second mobile device 30, the IMEI of the second mobile device 30 may have a value of "35 abcdef 465607 8", which is the same as that of the IMEI in the first device ID information. In addition, the ICCID in the second SIM information of the second mobile device 30 may have a value of "abcd efgh 0710 9991 604", which is the same as that for ICCID in the first SIM information.

In other words, according to FIG. 21, the first and second mobile devices 20 and 30 with the assigned phone number “+ 82-10-AAAA-BBBB” have SIM information with the same ICCID, and have device ID information with the same IMEI. The exemplary embodiment described with reference to FIG. 21 is different from the exemplary embodiments described with reference to FIG. 11A and 11B, in that in FIG. 21, the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same.

FIG. 22A to 27 are diagrams related to methods in accordance with the exemplary embodiment of FIG. 21.

22A is a timing chart for a method of performing a mobile communication function by the first mobile device 20 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and the telephone functions of the first and second mobile devices 20 and 30 both are applicable, in accordance with an exemplary embodiment.

In operation 2201, the mobile operator’s server 10 transmits the first SIM information to the first mobile device 20.

In operation 2202, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 2203, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2204, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2205, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2206, the first mobile device 20 is set as the preferred device from among the first and second mobile devices 20 and 30 belonging to the user, according to input from user A. The preferred device may mean a device for receiving a telephone call by phone number "+ 82-10- AAAA-BBBB ".

In operation 2207, the telephone function of the second mobile device 30 is disabled because the first mobile device 20 is set as the preferred device.

In operation 2208, when the telephone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the first mobile device 20. The telephone call is not connected to the second mobile device 30 because the telephone function of the second mobile device 30 is disabled.

FIG. 22B is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and the telephone functions of the first and second mobile devices 20 and 30 are both are applicable, in accordance with an exemplary embodiment.

In operation 2211, the mobile operator server 10 transmits the first SIM information to the first mobile device 20.

In operation 2212, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 2213, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2214, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2215, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2216, the second mobile device 30 is installed as the preferred device from among the first and second mobile devices 20 and 30 belonging to the user, according to input from user A. The preferred device may mean a device for receiving a telephone call by phone number "+ 82-10- AAAA-BBBB ".

In operation 2217, the telephone function of the first mobile device 20 is turned off, since the second mobile device 30 is set as the preferred device.

In operation 2218, when the telephone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the second mobile device 30. The telephone call is not connected to the first mobile device 20 because the telephone function of the first mobile device 30 is disabled.

FIG. 22C is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and only the telephone function of the first mobile device 20 is applicable, in accordance with an exemplary embodiment.

In operation 2221, the mobile operator server 10 transmits the first SIM information to the first mobile device 20.

In operation 2222, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 2223, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2204, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2225, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2226, the second mobile device 30 notifies the first mobile device 20 that the telephone function of the second mobile device 30 is in an inapplicable state. The inapplicable state of the telephone function may mean a state in which the mobile communication module included in the second mobile device 30 is malfunctioning or turned off.

In operation 2227, the first mobile device 20 activates the telephone function of the first mobile device 20.

In operation 2228, when the telephone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the first mobile device 20. The telephone call is not connected to the second mobile device 30, since the telephone function of the second mobile device 30 is not applicable.

FIG. 22D is a synchronization diagram of a method for performing a mobile communication function by the second mobile device 30 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and only the telephone function of the first mobile device 20 is applicable, in accordance with an exemplary embodiment.

In operation 2231, the mobile operator’s server 10 transmits the first SIM information to the first mobile device 20.

In operation 2232, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 2233, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2234, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2235, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2236, the second mobile device 30 notifies the first mobile device 20 that the telephone function of the second mobile device 30 is in an inapplicable state. The inapplicable state of the telephone function may mean a state in which the mobile communication module included in the second mobile device 30 is malfunctioning or turned off.

In operation 2237, the first mobile device 20 activates the telephone function of the first mobile device 20.

In operation 2238, when the phone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the first mobile device twenty.

In operation 2239, the first mobile device 20 makes a call — forwards the telephone call received from the mobile operator’s server 10 to the second mobile device 30 using an out-of-band wireless connection method using short-range wireless communication.

FIG. 22E is a timing chart of a method for performing a mobile communication function by the second mobile device 30 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and only the telephone function of the second mobile device 30 is applicable, in accordance with an exemplary embodiment.

In operation 2241, the mobile operator’s server 10 transmits the first SIM information to the first mobile device 20.

In operation 2242, the mobile operator server 10 transmits the second SIM information to the second mobile device 30.

In operation 2243, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2244, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2245, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2246, the first mobile device 20 notifies the second mobile device 30 that the telephone function of the first mobile device 20 is in an inapplicable state. The inapplicable state of the telephone function may mean a state in which the mobile communication module included in the first mobile device 20 is faulty or turned off.

In operation 2247, the second mobile device 30 activates the telephone function of the second mobile device 30.

In operation 2248, when the telephone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the second mobile device 30. The telephone call is not connected to the first mobile device 20, since the telephone function of the first mobile device 20 is not applicable.

FIG. 22F is a timing chart of a method for performing a mobile communication function by the first mobile device 20 when the first device ID information of the first mobile device 20 and the second device ID information of the second mobile device 30 are the same, and only the telephone function of the second mobile device 30 is applicable, in accordance with an exemplary embodiment.

In operation 2251, the mobile operator server 10 transmits the first SIM information to the first mobile device 20.

In operation 2252, the mobile operator’s server 10 transmits the second SIM information to the second mobile device 30.

In operation 2253, the first mobile device 20 stores the first SIM information in the SIM 520. In addition, the second mobile device 30 stores the second SIM information in the SIM 350.

In operation 2254, the first mobile device 20 and the second mobile device 30 specify a two-phone mode.

In operation 2255, the first and second mobile devices 20 and 30 communicate with each other, establishing a short-range wireless connection.

In operation 2256, the first mobile device 20 notifies the second mobile device 30 that the telephone function of the first mobile device 20 is in an inapplicable state. The inapplicable state of the telephone function may mean a state in which the mobile communication module included in the first mobile device 20 is faulty or turned off.

In operation 2257, the second mobile device 30 activates the telephone function of the first mobile device 20.

In operation 2258, when the telephone number “+ 82-10-AAAA-BBBB” is requested for a call from another mobile device, such as the mobile device 40 of user B of FIG. 1, the mobile operator server 10 attempts to connect the call to the second mobile device thirty.

In operation 2259, the second mobile device 30 forwards the call of the telephone call received from the mobile operator’s server 10 to the first mobile device 20 using the out-of-band wireless connection method using short-range wireless communication.

23 is a block diagram of a second mobile device 30 configured to share a first telephone number of a first mobile device 20 in a mobile communication system, in accordance with an exemplary embodiment.

Referring to FIG. 23, the second mobile device 30 may include a controller 320, a communicator 330, and a SIM 350. The second mobile device 30 may include additional hardware components or may not include all of the hardware components shown in FIG. 23. The second mobile device 30 of FIG. 23 may be a card telephone as described above, but is not limited to this. The second mobile device 30 of FIG. 23 can perform, for example, the operations of the second mobile device 30 described above with reference to FIG. 1-22F.

The controller 320 activates the telephone function of the second mobile device 30 after determining that the telephone function of the first mobile device 20 is disabled.

The SIM 350 receives from the server 10 and stores the second SIM information, including the subscriber information of the first phone number registered in the mobile communication system.

When the telephone function of the second mobile device 30 is activated, the communicator 330 transmits a request for using the second SIM information to the mobile operator’s server 10 so that the mobile communication function is performed.

24 is a flowchart of a method for providing a mobile communication service using a second mobile device 30 sharing a first telephone number of a first mobile device 20, in accordance with an exemplary embodiment. Turning to FIG. 24, the method includes operations processed in a time sequence by the second mobile device 30 described above. Thus, the details of the second mobile device 30 can be applied to the method of FIG. 24.

In operation 2401, the controller 320 determines whether the telephone function of the first mobile device 20 is disabled.

In operation 2402, the controller 320 activates the telephone function of the second mobile device 30 based on the result of the determination of operation 2401.

In operation 2403, when the telephone function of the second mobile device 30 is activated, the communicator 330 requests the mobile operator server 10 to activate the second SIM information that is stored in the SIM 350 and includes subscription information of the first telephone number registered in the mobile communication service.

In operation 2404, when the second SIM information is activated by the mobile operator’s server 10, the communicator 330 performs a mobile communication function using the activated second SIM information.

25 is a diagram for describing synchronization of the history of recent calls between the first mobile device 20 and the second mobile device 30, in accordance with an exemplary embodiment.

As described above, the first and second mobile devices 20 are independent devices capable of making and receiving telephone calls. Accordingly, the background of phone calls made and received by the first mobile device 20 can only be stored in the first mobile device 20, and the background of phone calls made and received by the second mobile device 30 can only be stored in the second mobile device 30. However, since the first and second mobile devices 20 and 30 share the same phone number, the history of recent calls of the first and second mobile devices 20 and 30 can be synchronized for the convenience of the user.

The point in time when the histories of recent calls are synchronized may be when the first and second mobile devices 20 and 30 are separated from each other or connected to each other, but one or more exemplary embodiments are not limited to this, and the histories of recent calls can be synchronized in any point in time required by the user.

FIG. 26 is a flowchart of a method for synchronizing the histories of recent calls when the first mobile device 20 and the second mobile device 30 are separated from each other, in accordance with an exemplary embodiment.

Referring to FIG. 26, the separation of the first and second mobile devices 20 and 30 may mean that the user wishes to use the second mobile device 30, for example, a telephone card, instead of the first mobile device 20, for example, a smartphone.

In operation 2601, the first mobile device 20 maintains a history of recent calls about recent telephone calls up to the last telephone call, while being associated with the second mobile device 30.

In operation 2602, when a user enters a request to separate the first and second mobile devices 20 and 30, the first mobile device 20 defines a separation of the first and second mobile devices 20 and 30.

In operation 2603, the first mobile device 20 requests a second mobile device 30 to synchronize the history of recent calls.

In operation 2604, the first mobile device 20 receives from the second mobile device 30 an index of the last telephone call in the recent call history stored in the second mobile device 30. Here, the index (or synchronization index) may be identification information (ID) assigned to classify telephone entries calls in the history of recent calls to manage the history of recent calls. In addition, the first mobile device 20 may maintain a history of recent calls using an index (or synchronization index).

In operation 2605, the first mobile device 20 determines whether the index received from the second mobile device 30 matches the index of the last phone call for the first mobile device 20. In other words, the first mobile device 20 determines whether the history of recent calls of the first mobile device 20 is different the second mobile device 30, based on the received index, to determine whether the history of recent calls is subject to synchronization. When the indices match, the method ends because the history of recent calls does not need to be synchronized. When the indices do not match, operation 2606 is performed.

In operation 2606, the first mobile device 20 generates telephone call history information after an index received from the second mobile device 30. Such recent call history information, which is present only in the first mobile device 20 and is not present in the second mobile device.

In operation 2607, the second mobile device 30 updates the recent call history of the second mobile device 30 using the telephone call history information received from the first mobile device 20. Essentially, the recent call history can be synchronized between the first and second mobile devices.

In operation 2608, the second mobile device 30 is separated from the first mobile device 20. In other words, the user can make or receive a call through the second mobile device 30 instead of the first mobile device 20.

According to another exemplary embodiment, the first mobile device 20 may receive a recent call history of the second mobile device 30 from the second mobile device 30 after operation 2603 and update the received recent call history to the recent call history of the first mobile device 20. In this case, operations 2604-2606 may not be executed.

FIG. 27 is a table illustrating a recent call history database stored in the device in accordance with an exemplary embodiment.

Referring to FIG. 27, the history of recent calls of the first or second mobile device 20 or 30 may include times of incoming calls and outgoing calls, and telephone numbers of incoming calls and outgoing calls, and may be converted to a database in the form of a table 2700, which synchronization index is assigned to each telephone call record. The synchronization index is identification information assigned to classify telephone call records, and the first and second mobile devices 20 and 30 can determine whether to synchronize the history of recent calls by comparing the synchronization indexes stored there. The form of the database regarding the history of recent calls is not limited to the table 2700 of FIG. 27, and may be in another form of a table or text.

FIG. 28 is a flowchart of a method for synchronizing the histories of recent calls when the first mobile device 20 and the second mobile device 30 are connected to each other, in accordance with an exemplary embodiment.

Referring to FIG. 28, the first and second mobile devices 20 and 30 may communicate when a user wishes to use the first mobile device 20 (eg, a smartphone).

In operation 2801, the first mobile device 20 maintains a history of recent calls about recent telephone calls up to the last telephone call, while being detachable from the second mobile device 30.

In operation 2802, when a user enters a request to link the first and second mobile devices 20 and 30, the second mobile device 30 defines a connection of the first and second mobile devices 20 and 30.

In operation 2803, the second mobile device 30 requests the first mobile device 20 to synchronize the history of recent calls.

In operation 2804, the second mobile device 30 receives from the first mobile device the index of the last telephone call in the recent call history stored in the first mobile device 20. Here, the index (or synchronization index) may be ID information assigned to classify telephone call records in the recent history calls to manage the history of recent calls in the first mobile device 20. Meanwhile, not only the first mobile device 20, but also the second mobile device 30 can control ive prehistory recent calls a second mobile device 30, using an index (or index of synchronization).

In operation 2805, the second mobile device 30 determines whether the index received from the first mobile device 20 is the same as the index of the last telephone call of the second mobile device 30. In other words, the second mobile device 30 can determine if the history of recent calls are different from each other. the first and second mobile devices 20 and 30, based on the received index, or whether synchronization of the history of recent calls of the first and second mobile devices 20 and 30 is required. When the indices are the same bubbled, the method ends, as the recent history of calls should not be synchronized. When the indices are not the same, operation 2806 is performed.

In operation 2806, the second mobile device 30 generates telephone call history information after an index received from the first mobile device 20. Such information includes recent call history information that is present only in the second mobile device 30 and is not present in the first mobile device 20 .

In operation 2807, the first mobile device 20 updates the recent call history of the first mobile device 20 using the telephone call history information received from the second mobile device 30. Accordingly, the recent call histories of the first and second mobile devices 20 and 30 can be synchronized.

In operation 2808, the first mobile device 20 communicates with the second mobile device 30. In other words, the user can make or receive a call through the first mobile device 20 instead of the second mobile device 30.

According to another exemplary embodiment, the second mobile device 30 may receive from the first mobile device 20 a recent call history of the first mobile device 20 after operation 2803 and update the received recent call history to the recent call history of the second mobile device 30. In this case, operations 2804-2806 may not be executed.

29 is a diagram for describing a mobile communication system including a wearable device in accordance with an exemplary embodiment.

Turning to FIG. 29, the first and second mobile devices 20 and 30 are devices that share the same phone number, as described above with reference to FIG. The wearable device 50 may be a standalone or companion type device.

When the wearable device 50 is of an autonomous type, a phone number different from that of the first mobile device 20 (or the second mobile device 30) is assigned to the wearable device 50. However, the mobile operator’s server 10 can map the phone number of the wearable device 50 to the phone number of the first mobile device 20 (or second mobile device 30). Accordingly, from the point of view of the mobile communication system, the first mobile device 20 (or the second mobile device 30) and the wearable device 50 are controlled as having different phone numbers, but from the point of view of the user, the first mobile device 20 (or the second mobile device 30) and the wearable device 50 or a third party, the first mobile device 20 (or the second mobile device 30) and the wearable device 50 may be considered sharing a single phone number.

When the wearable device 50 is of the companion type, a phone number is not assigned to the wearable device 50.

A call binding method using the wearable device 50 when the wearable device 50 is a standalone type will be described with reference to FIG. 30, 31, 34, and 35. In addition, a call binding method using the wearable device 50 when the wearable device 50 is of the “companion” type will be described with reference to FIG. 32, 33, 36, and 37.

FIG. 30 is a timing chart of a method of making a telephone call using a standalone type portable device 50 instead of the first mobile device 20, in accordance with an exemplary embodiment.

Turning to FIG. 30, it is believed that the stand-alone type wearable device 50 only allows connection to the first mobile device 20 and does not allow connection to the second mobile device 30.

In operation 3001, the wearable device 50 requests the first mobile device 20 to connect. Here, a method for connecting a wearable device 50 and a first mobile device 20 may include any of the short range mobile communication methods, such as Wi-Fi, Wi-Fi direct, Bluetooth, and NFC.

In operation 3002, the wearable device 50 and the first mobile device 20 synchronize the history of recent calls. Here, synchronization of the history of recent calls can be performed in the same manner as that performed between the first and second mobile devices 20 and 30 described above with reference to FIG. 28.

In operation 3003, the wearable device 50 is set as the main receiving device to receive calls before the first mobile device 20.

In operation 3004, the first mobile device 20 is set as the standby receiving device for receiving a call when the wearable device 50 cannot receive the call.

In operation 3005, since the wearable device 50 is the main receiving device, the wearable device 50 is in standby state.

In operation 3006, when an external source (eg, a third party) requests a telephone call, the mobile operator server 10 transmits a telephone call request to the wearable device 50 defined as the main receiving device. According to FIG. 30, the telephone number of the first mobile device 20 is “+ 82-10-AAAA-BBBB”, and the telephone number of the wearable device 50 is “+ 82-10-UDP-DDDD", and thus are different from each other. However, as described above with reference to FIG. 29, since the mobile operator’s server 10 constructs a telephone number display of the first mobile device 20 and the wearable device 50, and the devices are controlled such that the main telephone number of the user of the first mobile device 20 and the wearable device 50 is "+ 82-10-AAAA-BBBB", which is the phone number of the first mobile device 20, and thus the external source (third party) does not need to separately recognize "+ 82-10-Priv-DDDD" as the phone number of the wearable device 50. Others in other words, an external source (third party) makes a call to the first mobile device 20 or wearable device 50 using only the telephone number "+ 82-10-AAAA-BBBB".

In operation 3007, the wearable device 50 notifies the user of an incoming call.

In operation 3008, the wearable device 50 transmits incoming call information to the first mobile device 20.

In operation 3009, the first mobile device 20 notifies the user of an incoming call.

In operation 3010, the wearable device 50 answers an incoming call according to a telephone call request from the mobile operator’s server 10.

In operation 3011, the wearable device 50 disconnects the connection (hangs up) when an incoming call ends.

In operation 3012, when the incoming call is completed, the wearable device 50 notifies the first mobile device 20 of the completed incoming call.

In operation 3013, the wearable device 50 updates the history of recent calls based on completed incoming call information.

In operation 3014, the first mobile device 20 also updates the history of recent calls based on completed incoming call information.

FIG. 31 is a timing chart of a method of making a telephone call using an autonomous type portable device instead of the first mobile device, the portable device being unable to receive a call, in accordance with an exemplary embodiment.

Turning to FIG. 31, it is believed that the stand-alone type wearable device 50 only allows connection to the first mobile device 20 and does not allow connection to the second mobile device 30.

In operation 3101, the wearable device 50 requests the first mobile device 20 to connect.

In operation 3102, the wearable device 50 and the first mobile device 20 synchronize the history of recent calls.

In operation 3103, the wearable device 50 is set as the main receiving device to receive calls before the first mobile device 20.

In operation 3104, the first mobile device 20 is set as the standby reception device to receive a call when the wearable device 50 cannot receive the call.

In operation 3105, since the wearable device 50 is the main receiving device, the wearable device 50 is in standby state.

In operation 3106, when an external source (eg, a third party) requests a telephone call, the mobile operator server 10 transmits the telephone call request to the wearable device 50 defined as the primary receiving device.

In operation 3107, the wearable device 50 notifies the user of an incoming call.

In operation 3108, the wearable device 50 transmits incoming call information to the first mobile device 20.

In operation 3109, the first mobile device 20 notifies the user of an incoming call.

In operation 3110, when the wearable device 50 does not answer an incoming call for a period of time, the mobile operator’s server 10 changes the receiver to the first mobile device 20.

In operation 3111, the server 10 retransmits the telephone call request to the first mobile device 20, which is defined as the standby receiving device.

In operation 3112, the first mobile device 20 answers an incoming call according to a telephone call request from the mobile operator’s server 10.

In operation 3113, the first mobile device 20 disconnects the connection when an incoming call ends.

In operation 3114, when the incoming call is completed, the first mobile device 20 notifies the wearable device 50 of the completed incoming call.

In operation 3115, the wearable device 50 updates the history of recent calls based on the completed incoming call information.

In operation 3116, the first mobile device 20 also updates the history of recent calls based on completed incoming call information.

32 is a timing chart of a method of making a telephone call by a first mobile device 20 connected to a companion wearable device 50, in accordance with an exemplary embodiment.

Turning to FIG. 32, it is believed that the companion wearable device 50 is only able to connect to the first mobile device 20 and is not able to connect to the second mobile device 30.

In operation 3201, the wearable device 50 and the first mobile device 20 are connected to each other via wireless communication.

In operation 3202, the first mobile device 20 is set to a standby state.

In operation 3203, when an external source (eg, a third party) requests a telephone call, the mobile operator server 10 transmits a telephone call request to the first mobile device 20. Since the wearable device 50 is of the “companion” type, in contrast to FIG. 30 and 31, the mobile operator’s server 10 may not transmit a telephone call request directly to the wearable device 50.

In operation 3204, the first mobile device 20 notifies the user of an incoming call.

In operation 3205, the first mobile device 20 transmits incoming call information to the wearable device 50.

In operation 3206, the wearable device 50 notifies the user of an incoming call.

In operation 3207, the user of the first mobile device 20 answers an incoming call using the first mobile device 20.

In operation 3208, the first mobile device 20 notifies the wearable device 50 of a completed response to an incoming call.

In operation 3209, the first mobile device 20 disconnects the connection when an incoming call ends.

In operation 3210, when the incoming call is completed, the first mobile device 20 notifies the wearable device 50 of the completed incoming call.

In operation 3211, the wearable device 50 updates the history of recent calls based on completed incoming call information.

In operation 3212, the first mobile device 20 also updates the history of recent calls based on completed incoming call information.

FIG. 33 is a timing chart of a method for receiving a call made to the first mobile device 20 by a wearable companion device 50, in accordance with an exemplary embodiment.

Turning to FIG. 33, it is believed that the companion wearable device 50 only allows connection to the first mobile device 20 and does not allow connection to the second mobile device 30.

In operation 3301, the wearable device 50 and the first mobile device 20 are connected to each other via wireless communication.

In operation 3302, the first mobile device 20 is set to a standby state.

In operation 3303, when an external source (e.g., a third party) requests a telephone call, the mobile operator server 10 transmits the telephone call request to the first mobile device 20. Since the wearable device 50 is a companion, in contrast to FIG. 30 and 31, the mobile operator’s server 10 may not transmit a telephone call request directly to the wearable device 50.

In operation 3304, the first mobile device 20 notifies the user of an incoming call.

In operation 3305, the first mobile device 20 transmits incoming call information to the wearable device 50.

In operation 3306, the wearable device 50 notifies the user of an incoming call.

In operation 3307, the user of the wearable device 50 answers the incoming call using the wearable device 50.

In operation 3308, the first mobile device 20 transmits a telephone call request to the wearable device 50.

In operation 3309, the wearable device 50 disconnects the connection when an incoming call ends.

In operation 3310, when the incoming call is completed, the wearable device 50 notifies the first mobile device 20 of the completed incoming call.

In operation 3311, the wearable device 50 updates the history of recent calls based on completed incoming call information.

In operation 3312, the first mobile device 20 also updates the history of recent calls based on the completed incoming call information.

Fig. 34 is a timing chart of a method of making a telephone call by a portable device 50 of an autonomous type instead of a second mobile device 30, which is a card telephone, in accordance with an exemplary embodiment.

Turning to FIG. 34, it is believed that the stand-alone type wearable device 50 only allows connection to the second mobile device 30 and does not allow connection to the first mobile device 20.

In operation 3401, the wearable device 50 requests the second mobile device 30 to connect. The method for connecting the wearable device 50 and the second mobile device 30 may include any of various short range wireless communication methods such as Wi-Fi, Wi-Fi direct, Bluetooth and NFC.

In operation 3402, the wearable device 50 and the second mobile device 30 synchronize the history of recent calls. The synchronization of the history of recent calls can be performed in the same manner as that performed between the first and second mobile devices 20 and 30 described above with reference to FIG. 28.

In operation 3403, the wearable device 50 is set as the primary receiving device to receive calls before the second mobile device 30.

In operation 3404, the second mobile device 30 is set as the standby reception device to receive the call when the wearable device 50 cannot receive the call.

In operation 3405, since the wearable device 50 is the main receiving device, the wearable device 50 is in standby state.

In operation 3406, when an external source (eg, a third party) requests a phone call, the mobile operator server 10 transmits a phone call request to the wearable device 50 specified as the receiving device. According to Fig. 34, the phone number of the second mobile device 30 is "+ 82-10-AAAA-BBBB", and the phone number of the wearable device 50 is "+ 82-10-UDP-DDDD". However, as described above with reference to FIG. 29, since the mobile operator’s server 10 constructs a telephone number display of the second mobile device 30 and the wearable device 50, and controls the main telephone number of the user of the second mobile device 30 and the wearable device 50, which will be “+82 -10-AAAA-BBBB ", that is, the phone number of the first mobile device 20, the external source (third party) may not know that" + 82-10-UDP-DDDD "is the phone number of the wearable device 50. In other words, the external the source (third party) makes a call to a second mobile device 30 or a wearable device 50 using only the telephone number "+ 82-10-AAAA-BBBB".

In operation 3407, the wearable device 50 notifies the user of an incoming call.

In operation 3408, the wearable device 50 transmits the incoming call information to the second mobile device 30.

In operation 3409, the second mobile device 30 notifies the user of an incoming call.

In operation 3410, the wearable device 50 answers the incoming call according to a telephone call request from the mobile operator’s server 10.

In operation 3411, the wearable device 50 disconnects the connection when an incoming call ends.

In operation 3412, when the incoming call ends, the wearable device 50 notifies the second mobile device 30 of the completed incoming call.

In operation 3413, the wearable device 50 updates the history of recent calls based on completed incoming call information.

In operation 3414, the second mobile device 30 also updates the history of recent calls based on the completed incoming call information.

Fig. 35 is a timing chart of a method of making a telephone call using an autonomous type portable device 50 instead of the second mobile device 30, the portable device 50 being unable to receive a call, in accordance with an exemplary embodiment.

Turning to FIG. 35, it is believed that the stand-alone type wearable device 50 only allows connection to the second mobile device 30 and does not allow connection to the first mobile device 20.

In operation 3501, the wearable device 50 requests the second mobile device 30 to connect.

In operation 3502, the wearable device 50 and the second mobile device 30 synchronize the history of recent calls.

In operation 3503, the wearable device 50 is set as the primary receiving device to receive calls before the second mobile device 30.

In operation 3504, the second mobile device 30 is set as the standby receiver to receive the call when the wearable device 50 cannot receive the call.

In operation 3505, since the wearable device 50 is the main receiving device, the wearable device 50 is in standby state.

In operation 3506, when an external source (eg, a third party) requests a telephone call, the mobile operator server 10 transmits a telephone call request to the wearable device 50 defined as the receiving device.

In operation 3507, the wearable device 50 notifies the user of an incoming call.

In operation 3508, the wearable device 50 transmits incoming call information to the second mobile device 30.

In operation 3509, the second mobile device 30 notifies the user of an incoming call.

In operation 3510, when the wearable device 50 does not answer an incoming call for a period of time, the mobile operator’s server 10 changes the receiver to the second mobile device 30, which is the standby receiver.

In operation 3511, the server 10 retransmits the telephone call request to the second mobile device 30, which is defined as the standby receiving device.

In operation 3512, the second mobile device 30 answers an incoming call according to a telephone call request from the mobile operator’s server 10.

In operation 3513, the second mobile device 30 disconnects the connection when the incoming call ends.

In operation 3514, when the incoming call is completed, the second mobile device 30 notifies the wearable device 50 of the completed incoming call.

In operation 3515, the wearable device 50 updates the history of recent calls based on the completed incoming call information.

In operation 3516, the second mobile device 30 also updates the history of recent calls based on the completed incoming call information.

Fig. 36 is a timing chart of a method for making a telephone call by a second mobile device 30 connected to a companion wearable device 50, in accordance with an exemplary embodiment.

Referring to Fig. 36, it is believed that the wearable companion device 50 only allows connection to the second mobile device 30 and does not allow connection to the first mobile device 20.

In operation 3601, the wearable device 50 and the second mobile device 30 are connected to each other via wireless communication.

In operation 3602, the second mobile device 30 is set to a standby state.

In operation 3603, when an external source (eg, a third party) requests a phone call, the mobile operator server 10 transmits the telephone call request to the second mobile device 30. Since the wearable device 50 is of the “companion” type, the mobile operator server 10 may Do not send a phone call request directly to wearable device 50.

In operation 3604, the second mobile device 30 notifies the user of an incoming call.

In operation 3605, the second mobile device 320 transmits incoming call information to the wearable device 50.

In operation 3606, the wearable device 50 notifies the user of an incoming call.

In operation 3607, the user of the second mobile device 30 answers the incoming call using the second mobile device 30.

In operation 3608, the second mobile device 30 notifies the wearable device 50 of a completed response to an incoming call.

In operation 3609, the second mobile device 30 disconnects the connection when the incoming call ends.

In operation 3610, when the incoming call ends, the second mobile device 30 notifies the wearable device 50 of the completed incoming call.

In operation 3611, the wearable device 50 updates the history of recent calls based on the completed incoming call information.

In operation 3612, the second mobile device 30 also updates the history of recent calls based on the completed incoming call information.

Fig. 37 is a timing chart of a method of receiving a call made to the second mobile device 30 by the wearable companion device 50, in accordance with an exemplary embodiment.

Turning to FIG. 37, it is believed that the wearable companion device 50 only allows connection to the second mobile device 30 and does not allow connection to the first mobile device 20.

In operation 3701, the wearable device 50 and the second mobile device 30 are connected to each other via wireless communication.

In operation 3702, the second mobile device 30 is set to a standby state.

In operation 3703, when an external source (eg, a third party) requests a phone call, the mobile operator server 10 transmits the telephone call request to the second mobile device 30. Since the wearable device 50 is of the “companion” type, the mobile operator server 10 may Do not send a phone call request directly to wearable device 50.

In operation 3704, the second mobile device 30 notifies the user of an incoming call.

In operation 3705, the second mobile device 30 transmits incoming call information to the wearable device 50.

In operation 3706, the wearable device 50 notifies the user of an incoming call.

In operation 3707, the user of the wearable device 50 answers the incoming call using the wearable device 50.

In operation 3708, the second mobile device 30 transmits a telephone call request to the wearable device 50.

In operation 3709, the wearable device 50 disconnects the connection when the incoming call ends.

In operation 3710, when the incoming call ends, the wearable device 50 notifies the second mobile device 30 of the completed incoming call.

In operation 3711, the wearable device 50 updates the history of recent calls based on completed incoming call information.

In operation 3712, the second mobile device 30 also updates the history of recent calls based on the completed incoming call information.

As described above, according to one or more exemplary embodiments, since a user can use several mobile devices in a mobile communication system using a single phone number, without having to manage these several mobile devices having different phone numbers, a user owning several mobile devices can Receive a mobile service using one device from several mobile devices based on your situation. In addition, the inconvenience of managing the different phone numbers of these multiple mobile devices can be reduced, and other users do not need to remember different phone numbers.

One or more exemplary embodiments may also be implemented in the form of a computer-readable recording medium, such as a software module executed by a computer. The computer-readable recording medium may be a non-temporary computer-readable recording medium. Computer-readable recording media may be any accessible medium with computer accessibility, and examples thereof include all volatile and non-volatile media and removable and non-removable media. In addition, examples of a computer-readable recording medium may include a computer storage medium and a data transmission medium. Examples of computer storage media include all volatile and non-volatile media and removable and non-removable media that have been implemented by any method or technology for storing information, such as computer-readable instructions, data structures, program modules, and other data. A data transfer medium typically includes a computer-readable instruction, a data structure, a program module, other data of a modulated data signal, or other transmission mechanism, and an example of this includes an arbitrary information transfer medium.

Furthermore, in this case, the “block” may be a hardware component, such as a processor or circuit, and / or a software-implemented component, executed by a hardware component, such as a processor.

Although some exemplary embodiments have been shown and described, those skilled in the art will understand that various changes in form and detail can be made therein without departing from the scope and spirit of the present invention, as defined by the following claims and their equivalents. Therefore, it will be understood that some exemplary embodiments described above are not limited. For example, each component described as single can be executed in a distributed manner, and components described as distributed can also be executed in integrated form.

The scope of protection of the present invention is defined by the claims and their equivalents, and not a detailed description, and it should be understood that the claims and all modifications or modified forms derived from the essence of the claims and their equivalents are included in the scope of protection of the present invention.

Claims (35)

1. A mobile device configured to share the phone number of another mobile device in a mobile communication system, the mobile device comprising: a controller configured to determine if the telephone function of the other mobile device is activated, and, after determining that the telephone function of the other mobile device is disabled, activate the telephone function of the mobile device to which the telephone number of the other mobile device is assigned; and a communicator configured to perform a mobile communication function using a telephone number when the telephone function of the mobile device is activated. 2. The mobile device according to claim 1, additionally containing a subscriber identity module (SIM), configured to receive SIM information from a server and store SIM information, wherein the SIM information includes subscriber information of a mobile device corresponding to a phone number in a mobile communication system in which another mobile device and a mobile device are present. 3. The mobile device according to claim 2, wherein the communicator is further configured to receive SIM information from the server when the telephone function of the mobile device is activated. 4. The mobile device according to claim 3, in which the communicator is additionally configured to: transmit to the server a request for using SIM information when the SIM information is received, and perform a mobile communication function in response to receiving permission from the server. 5. The mobile device according to claim 1, further comprising a storage device having the device identification information (ID) stored therein having a different value from the device ID information of another mobile device, moreover, the device ID information for another mobile device contains at least one of a serial number and an international mobile equipment identifier (IMEI) of another mobile device, and The device ID information for the mobile device contains at least one of the serial number and IMEI of the mobile device. 6. The mobile device according to claim 1, in which the communicator is further configured to: Connect to another mobile device using short-range wireless, and exchange information about the activation state of the telephone function of another mobile device and the activation state of the telephone function of the mobile device with another mobile device, and the controller is further configured to activate the telephone function of the mobile device based on the exchanged information. 7. The mobile device according to claim 6, in which the controller is additionally configured to respond to the determination that the telephone function in another mobile device is disabled, to automatically activate the telephone function of the mobile device. 8. The mobile device according to claim 1, additionally containing a subscriber identity module (SIM), configured to: receive SIM information from the server regardless of the activation status of the mobile phone’s function and save received SIM information. 9. The mobile device of claim 8, in which the communicator is additionally configured to: transmit in response to the activated function of the telephone of the mobile device a request to use the stored SIM information to the server and perform a mobile communication function in response to receiving permission from the server. 10. The mobile device according to claim 2, wherein the communicator is further configured to receive subscriber identity module (SIM) information from another mobile device in response to the activated function of the mobile phone. 11. The mobile device of claim 10, in which the communicator is additionally configured to: transmit in response to SIM information received from another mobile device to the server a request for using the received SIM information and perform a mobile communication function in response to receiving permission from the server. 12. The mobile device of claim 10, in which the communicator is further configured to respond to the activated function of the telephone of another mobile device, while the SIM information is stored in the SIM, to transmit the stored SIM information to another mobile device, and the controller is further configured to control SIM to delete SIM information after the SIM information is transmitted. 13. A method of providing a mobile device sharing a telephone number of another mobile device with a mobile communication service, the method comprising: determining if the phone function is disabled for another mobile device; activation of the telephone function of the mobile device based on the determination result; and performing, in response to an activated telephone function of another mobile device, a mobile communication function using a telephone number.

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