KR20050049215A - Method for using mobile terminal by replacing new one in mobile communication system - Google Patents

Abstract

The present invention provides a method for using a terminal exchange in a mobile communication system, wherein a first terminal registered with a mobile communication service stores a subscriber authentication number, and has a first terminal unique number, which is transmitted to a mobile switching center according to a request for a terminal exchange use by a user. A first step of transmitting a terminal exchange use request signal and determining whether a permission signal is received, and when the permission signal is received, the first terminal moves the subscriber identification number and the first terminal unique number with two terminal unique numbers; A second process of transmitting to the second terminal not registered in the communication service, and the second terminal receiving and storing the subscriber identification number and the first terminal identification number, and storing the subscriber identification number and the first terminal identification number In the third process, the mobile communication service is provided. As such, the present invention has an advantage in that a user can exchange a first terminal registered in a mobile communication service with an unregistered second terminal.

Description

    How to use terminal exchange in mobile communication system {METHOD FOR USING MOBILE TERMINAL BY REPLACING NEW ONE IN MOBILE COMMUNICATION SYSTEM}

The present invention relates to a method of using a terminal in a mobile communication system, and in particular, a terminal (hereinafter referred to as 'first terminal') registered in the mobile communication system is not registered in the mobile communication system (hereinafter referred to as 'second terminal'). It refers to a method of using a terminal exchange to be used interchangeably.

In general, mobile communication systems are divided into GSM (Global System for Mobile) and CDMA (Code Division Multiple Access).

In the GSM type mobile communication system, a SIM (Subscriber Indetification Module) is inserted into a terminal. That is, a terminal usually has a slot for inserting a SIM card, and when a SIM card with subscriber information is inserted therein, the terminal can be used. Therefore, in the GSM method, the subscriber can use the terminal simply by inserting the SIM card into any terminal with the SIM card. However, in the GSM system, theft of the terminal becomes a problem because other terminals can be used as their own terminals by simply changing the SIM card.

Meanwhile, in the CDMA mobile communication system, each terminal stores a mobile identification number (MIN) and a terminal serial number (ESN), and communicates using the stored subscriber identification number and terminal unique number. Perform. The MIN, for example, corresponds to a telephone number, and the ESN is a delimiter uniquely assigned to the terminal, for example the first 1 byte of the ESN represents the manufacturer. In the CDMA mobile communication system, only terminals having MIN and ESN registered in the system can be used. Therefore, in the CDMA method, the user cannot change the terminal like the GSM method. That is, in the CDMA method, each carrier has a table of ESN and MIN for each customer, so that the user stores the first terminal registered in the mobile communication service for use by exchanging the second terminal with an unregistered second terminal. Even if the MIN is arbitrarily changed, the ESN of the second terminal and the ESN of the first terminal registered in advance in the system do not coincide with each other. Therefore, the CDMA method has a problem in that only one terminal registered in the system for one MIN can be used in advance.

Accordingly, an object of the present invention is to provide a method of using a terminal exchange that allows a user to exchange a first terminal registered in a mobile communication system with a second terminal that is not registered.

In accordance with the above object, the present invention provides a method for using a terminal exchange in a mobile communication system, the terminal registered by the mobile communication service to store the subscriber authentication number, the first terminal having a first terminal unique number used by the user terminal exchange A first step of transmitting a terminal exchange use request signal to a mobile switching center according to a request and determining whether an authorization signal is received; and when the authorization signal is received, the first terminal transmits the subscriber identification number and the first terminal unique number to the mobile station. A second process of transmitting a terminal unique number to a second terminal not registered in a mobile communication service; and receiving and storing the subscriber identification number and the first terminal unique number by the second terminal; A third process of receiving a mobile communication service using the first terminal unique number.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of a mobile communication system according to an exemplary embodiment of the present invention. Referring to FIG. 1, the first terminal 100 has a first terminal unique number, that is, a first ESN, and has a unique subscriber authentication number, that is, a MIN, as a terminal registered in a mobile communication system. The second terminal 200 has a second terminal unique number, that is, a second ESN, and does not have a MIN as a terminal not registered in the mobile communication system.

The base station 302 is responsible for communicating with terminals as a wireless station, and transmits a radio signal to or receives a radio signal from a terminal in a radio communication section.

The base station controller 304 controls the base station 302, manages radio resources, and performs hand-off functions of the base station 302 and the base station controller 304.

The mobile switching center 306 performs a switching function to connect a call path to enable a call, and when a registered terminal moves to a new cell, handoff instruction to the base station controller 302 and interwork with the general public network 312. .

The home location register 308 is a database for storing a service profile of a subscriber, and stores information on MIN and ESN, service type, etc. of a subscriber station. This home location register 308 may be implemented within the mobile switching center 306 or externally.

The subscriber information processor 310 has a large real-time database, and processes the information on the terminal required by the mobile communication system and ensures the mobility of the subscriber terminal.

2 is a block diagram of a terminal according to an embodiment of the present invention. Hereinafter, the configuration of the first terminal 100 according to the embodiment of the present invention will be described with reference to FIG. 2. Since the second terminal 200 is not a registered terminal like the first terminal 100 and thus does not store MIN information, the description is omitted since it is similar to the configuration of the first terminal 100. Referring to FIG. 2, the first terminal 100 includes a control unit 12, a wireless unit 14, a voice processing unit 16, a memory 18, a key input unit 20, a display unit 22, and a short range wireless transceiver. It consists of 24.

The controller 12 performs the overall control operation of the first terminal 100, and performs the control for the exchange use according to an embodiment of the present invention. The radio unit 14 transmits and receives voice data and control data through wireless communication with the base station 302 under the control of the control unit 12. The voice processor 16 converts the voice data received by the wireless unit 14 into an audible sound through a speaker under the control of the controller 12, and outputs the voice signal input from the microphone. The memory unit 18 includes a program memory that stores program data necessary for controlling a terminal operation, and a data memory that stores data generated during control or during execution by a user. The memory 18 also includes a memory for storing subscriber identification number MIN and terminal identification number ESN for performing communication. The key input unit 20 includes a plurality of numeric keys and function keys, and outputs key input data corresponding to a key pressed by the user to the controller 12. The display unit 22 may be a liquid crystal display or the like, and displays various display data generated in the terminal. The short range wireless transceiver 24 may be implemented as an IR (InfraRed) communication module, a Radio Frequency ID (RFID) communication module, a BlueStu communication module, or the like, and performs short range wireless communication with the outside. According to an embodiment of the present invention, the short range wireless transceiver 24 transmits its MIN and ESN stored in the memory 18 to another external terminal through short range wireless communication or receives the MIN and ESN of the external terminal from the external terminal. .

According to the first embodiment of the present invention, the first terminal 100 provides a pre-stored MIN and its first ESN to an unregistered second terminal 200 and does not perform a communication function. ) Performs communication using the MIN provided from the first terminal and the first ESN. Accordingly, the present invention allows a user to exchange a first terminal registered in a mobile communication system with a second terminal which is not registered.

3 is a flowchart illustrating a method of using a terminal exchange according to a first embodiment of the present invention. Hereinafter, a method of using a terminal exchange according to a first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

  In operation 52, the first terminal 100 determines whether there is a terminal exchange use request from the user. If there is a request for a terminal exchange using the key input unit 20 from the user, the first terminal 100 proceeds to step 54 and transmits a terminal exchange use request signal to the mobile switching center 306 through the wireless unit 14. The mobile switching center 306 determines whether to permit or disallow the terminal exchange use request signal, and transmits a grant signal when the terminal exchange use request signal is granted. In operation 56, the first terminal 100 determines whether a terminal exchange use permission signal is received. If the terminal exchange use permission signal is not received and the terminal exchange disable signal is received, the first terminal 100 proceeds to step 58 to notify the user of the terminal exchange unavailable. However, if the terminal exchange permission signal is received, the first terminal 100 proceeds to step 60 to transfer the MIN and its ESN stored in the memory 18 to the second terminal 200 through the short range wireless transceiver 24. send. Then, the first terminal 100 determines in step 62 whether the MIN and the ESN have been transmitted. When the MIN and the ESN are transmitted, the first terminal 100 transmits the MIN and ESN transmission completion signals to the mobile switching center 306 through the wireless unit 14 in step 64. In operation 66, the first terminal 100 disables the wireless unit 14 and turns off the power to prevent communication.

The second terminal 200 receives the MIN and the ESN from the first terminal 100 in step 68. In operation 70, the second terminal 200 determines whether MIN and ESN reception is completed from the first terminal 100. When the second terminal 200 completes the reception of the MIN and the ESN from the first terminal 100, the second terminal 200 proceeds to step 72 and the reception completion signal notifying the mobile switching center 306 of the completion of the reception of the MIN and ESN of the first terminal 100. Send it. Then, the second terminal 200 stores the MIN and the ESN of the first terminal 100 in its own memory in step 74. The second terminal 200 stores the MIN and the ESN of the first terminal 100 and then reboots in step 76. After rebooting, the first terminal 100 performs communication using MIN and ESN information provided from the first terminal 100.

However, in the method of using a terminal exchange according to the first embodiment as described above, since the first terminal 100 transmits its MIN and ESN to the second terminal 200 as it is, the first terminal 100 of the first terminal 100 is transmitted. There is room for the MIN and the ESN to leak out and be used for the replication terminal. Therefore, in the second embodiment of the present invention, the ESN is encrypted and used as a V-ESN (Virtual-ESN).

4 is a flowchart illustrating a method of using a terminal exchange according to a second embodiment of the present invention. Hereinafter, a method of using a terminal exchange according to a second embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 4.

  In operation 152, the first terminal 100 determines whether there is a terminal exchange use request from the user. If there is a request for a terminal exchange using the key input unit 20 from the user, the first terminal 100 proceeds to step 154 and transmits a terminal exchange use request signal to the mobile switching center 306 through the wireless unit 14. The mobile switching center 306 determines whether to permit or disallow the terminal exchange use request signal, and transmits a grant signal when the terminal exchange use request signal is granted, and provides a disable signal to the first terminal 100 when the terminal exchange use request signal is not permitted. In operation 156, the first terminal 100 determines whether a terminal exchange use permission signal is received. If the terminal exchange use permission signal is not received and the terminal exchange disable signal is received, the first terminal 100 proceeds to step 158 to notify the user of the terminal exchange unavailable. However, if the terminal exchange use permission signal is received, the first terminal 100 proceeds to step 160 to generate the V-ESN by encrypting the ESN information. In operation 162, the first terminal 100 transmits the MIN stored in the memory 18 and the generated V-ESN to the second terminal 200 through the short range wireless transceiver 24. In operation 164, the first terminal 100 determines whether MIN and V-ESN have been transmitted. When the MIN and the V-ESN have been transmitted, the first terminal 100 transmits the MIN and V-ESN transmission completion signals to the mobile switching center 306 through the wireless unit 14 in step 166. In operation 168, the first terminal 100 disables the radio unit 14 and turns off the power to prevent communication.

The second terminal 200 receives the MIN and the V-ESN from the first terminal 100 in step 170. In operation 172, the second terminal 200 determines whether MIN and V-ESN reception are completed from the first terminal 100. When the second terminal 200 receives the MIN and V-ESN from the first terminal 100, the process proceeds to step 1 74, where the MIN and V-ESN reception of the first terminal 100 is completed by the mobile switching center 306. Send a reception complete signal indicating that Then, the second terminal 200 decodes the V-ESN in step 176 to obtain the original ESN of the first terminal 100. In operation 178, the second terminal 200 stores the MIN and the ESN of the first terminal 100 in its own memory. The second terminal 200 stores the MIN and the ESN of the first terminal 100 and then reboots in step 180. After rebooting, the first terminal 100 performs communication using MIN and ESN information of the first terminal 100 stored in the memory.

Meanwhile, according to the third embodiment of the present invention, the first terminal 100 makes a request for the use of the terminal exchange to the mobile switching center 306, and the mobile switching station 306 requests the use of the terminal exchange from the first terminal 100. The authentication code is transmitted to the first terminal 100. When the first terminal 100 receives the authentication code, the first terminal 100 provides the received authentication code and its MIN and ESN to the second terminal 200. The second terminal 200 stores the MIN provided from the first terminal, adds its ESN to the authentication code and the ESN, and transmits it to the mobile switching center 306. The mobile switching center 306 converts the registered ESN information from the ESN of the first terminal to the ESN of the second terminal when the authentication code, the ESN of the first terminal, and the ESN of the second terminal are received. In this case, the first terminal 100 cannot communicate, and the second terminal 200 communicates with the MIN of the first terminal using its ESN.

5 is a flowchart illustrating a method of using a terminal exchange according to a third embodiment of the present invention. Hereinafter, a method of using a terminal exchange according to a third embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 5.

In operation 252, the first terminal 100 determines whether a terminal exchange use request is received from the user. If there is a request for a terminal exchange using the key input unit 20 from the user, the first terminal 100 proceeds to step 254 and transmits a terminal exchange use request signal to the mobile switching center 306 through the wireless unit 14. The mobile switching center 306 provides the authentication code to the first terminal 100 in step 256 when the terminal exchange use request signal is received. When receiving the authentication code, the first terminal 100 transmits the MIN and its ESN information stored in the authentication code and the memory 18 to the second terminal 200 to be exchanged through the short range wireless transceiver 24 in step 258. do. Then, in step 260, the first terminal 100 determines whether the authentication code, the MIN, and the ESN have been transmitted. When the authentication code, MIN and ESN are transmitted, the first terminal 100 transmits the authentication code, MIN and ESN transmission completion signal to the mobile switching center 306 through the wireless unit 14 in step 262. In operation 264, the first terminal 100 turns off the power.

The second terminal 200 receives the authentication code, the MIN, and the ESN of the first terminal transmitted from the first terminal 100 in step 268. In operation 270, the second terminal 200 determines whether reception of an authentication code, MIN, and ESN is completed. When the second terminal 200 receives the authentication code, the MIN, and the ESN from the first terminal 100, the second terminal 200 proceeds to step 272 to store the MIN in its own memory. In operation 274, the second terminal 200 transmits the authentication code received from the first terminal 100, the ESN of the first terminal, and its own ESN to the mobile switching center 306. Then, the second terminal 200 proceeds to step 276 and reboots.

When the mobile switching center 306 receives the authentication code, the ESN of the first terminal, and the ESN of the second terminal from the second terminal 100, the mobile switching center 306 transmits the ESN information previously registered to the home location register 308 in step 280. Registration is changed from the ESN to the ESN of the second terminal.

When the ESN information is registered as the ESN of the second terminal in the ESN of the first terminal as described above, the second terminal 200 performs communication using the MIN and its own ESN in step 280.

However, in the method of using a terminal exchange according to the third embodiment as described above, the first terminal 100 transmits its ESN to the second terminal 200 as it is, and the second terminal 200 communicates with the ESN of the first terminal. Since the ESN is transmitted to the MS as it is, there is a possibility that the ESNs of the first and second terminals 100 and 200 may be leaked to the outside and used for the duplicated terminal. Therefore, the fourth embodiment of the present invention uses a virtual-ESN (virtual ESN) that encrypts the ESN. Hereinafter, in the fourth embodiment of the present invention, the ESN of the first terminal 100 will be referred to as the first ESN, and the ESN of the second terminal 200 will be referred to as the second ESN.

6 is a flowchart illustrating a method of using a terminal exchange according to a fourth embodiment of the present invention. Hereinafter, a method of using a terminal exchange according to a fourth embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 6.

In operation 352, the first terminal 100 determines whether there is a terminal exchange use request from the user. If there is a request for a terminal exchange using the key input unit 20 from the user, the first terminal 100 proceeds to step 354 and transmits a terminal exchange use request signal to the mobile switching center 306 through the wireless unit 14. The mobile switching center 306 provides the authentication code to the first terminal 100 in step 356 when the terminal exchange use request signal is received. When the authentication code is received, the first terminal 100 encrypts its own ESN, that is, the first ESN, stored in the memory 18 in step 358 to generate the first V-ESN. Then, the first terminal 100 transmits the MIN stored in the authentication code and the memory 18 and the generated first V-ESN to the second terminal 200 through the short range wireless transceiver 24 in step 360. do. In operation 362, the first terminal 100 proceeds to step 364 when the authentication code, the MIN, and the first V-ESN are transmitted. In step 364, the first terminal 100 transmits an authentication code, a MIN, and a first V-ESN transmission completion signal to the mobile switching center 306 through the wireless unit 14. In operation 366, the first terminal 100 turns off the power.

The second terminal 200 receives the authentication code, the MIN, and the first V-ESN transmitted from the first terminal 100 in step 370. In operation 372, the second terminal 200 determines whether reception of the authentication code, the MIN, and the first V-ESN is completed. When receiving the authentication code, the MIN, and the first V-ESN from the first terminal 100, the second terminal 200 proceeds to step 374 and stores the MIN in its own memory. In operation 376, the second terminal 200 encrypts its own ESN, that is, the second ESN, to generate a second V-ESN. After generating the second V-ESN, the second terminal 200 exchanges the authentication code received from the first terminal 100 and the first V-ESN and its own generated second V-ESN in step 378. 306). Then, the second terminal 200 proceeds to step 380 and reboots.

When the mobile switching center 306 receives the authentication code and the first V-ESN and the second V-ESN from the second terminal 100, the mobile switching center 306 decrypts the first V-ESN and the second V-ESN in step 382. Obtain the ESN and the second ESN. The mobile switching center 306 proceeds to step 384 and registers the registered ESN information by changing from the first ESN to the second ESN.

When the ESN information is registered as the second ESN in the first ESN as described above, the second terminal 200 communicates with the MIN received from the first terminal 100 using its ESN, that is, the second ESN in step 386. do.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

As described above, when the first terminal registered to perform a mobile communication service provides its own MIN and ESN to a second terminal which is not registered, the second terminal 200 is provided with the MIN provided from the first terminal. It performs communication function using ESN. Accordingly, the present invention allows a user to exchange a first terminal registered in a mobile communication system with a second terminal which is not registered.

In addition, when the first terminal registered to perform the mobile communication service requests the mobile switching center to use the terminal exchange, the mobile switching center stores the previously registered ESN information as a second ESN not registered in the first ESN. In this case, the first terminal cannot communicate, and the second terminal communicates using the MIN received from the first terminal and its second ESN, thereby allowing the user to register the first terminal registered in the mobile communication service. Exchange to a second terminal that is not registered to use.

1 is a block diagram of a mobile communication system according to an embodiment of the present invention;

2 is a block diagram of a mobile communication terminal according to an embodiment of the present invention;

3 is a flowchart illustrating a method of using a terminal exchange according to a first embodiment of the present invention.

4 is a flowchart illustrating a method of using a terminal exchange according to a second embodiment of the present invention.

5 is a flowchart illustrating a method of using a terminal exchange according to a third embodiment of the present invention.

6 is a flowchart illustrating a method of using a terminal exchange according to a fourth embodiment of the present invention.

Claims (4)

In the method of using a terminal exchange in a mobile communication system, And store the subscriber authentication number registered in the mobile communication service, the first terminal having the first terminal unique number transmits the terminal exchange use request signal to the mobile switching center according to the terminal exchange use request by the user, and determines whether the permission signal is received. The first process, A second process of transmitting, by the first terminal, the subscriber identification number and the first terminal unique number to the second terminal not registered in the mobile communication service when the permission signal is received; And a third process in which the second terminal receives and stores the subscriber identification number and the first terminal identification number and receives a mobile communication service using the subscriber identification number and the first terminal identification number. How to use terminal exchange. In the method of using a terminal exchange in a mobile communication system, Storing the subscriber authentication number registered in the mobile communication service, the first terminal having the first terminal unique number transmits the terminal exchange use request signal to the mobile switching center according to the terminal exchange use request by the user, and grants an authorization signal from the mobile switching station A first process of determining whether is received; When the permission signal is received, the first terminal encrypts the first terminal unique number to generate a first virtual terminal unique number, and the stored subscriber authentication number and the first virtual terminal unique number have two terminal unique numbers. A second process of transmitting to a second terminal not registered in the mobile communication service and powering off;  The second terminal receives the subscriber identification number and the first virtual terminal unique number, decrypts the first virtual terminal unique number into a first terminal unique number, and then replaces the subscriber identification number and the first terminal unique number. A third process of storing, And a fourth process in which the second terminal receives a mobile communication service using the stored subscriber authentication number and the first terminal unique number. In the method of using a terminal exchange in a mobile communication system, A first process of storing a subscriber authentication number registered in a mobile communication service and transmitting a terminal exchange use request signal to a mobile switching center by a first terminal having a first terminal unique number according to a terminal exchange use request by a user; A second process of the mobile switching center providing an authentication code for terminal exchange use to the first terminal according to the terminal exchange use request signal; A third process of transmitting, by the first terminal, the provided authentication code, the stored subscriber authentication number and the first terminal unique number to the second terminal that is not registered in the mobile communication service with the second terminal unique number;  The second terminal receives the authentication code and the subscriber identification number and the first terminal unique number, stores the subscriber identification number in a memory, and moves the authentication code, the first terminal unique number and the second terminal unique number. A fourth process for transmitting to the exchange office, The mobile switching center receives the authentication code, the first terminal unique number and the second terminal unique number, and registers the terminal unique number previously registered in the mobile communication service by changing from the first terminal unique number to the second terminal unique number. The fifth process, And a sixth process in which the second terminal receives a mobile communication service using the subscriber identification number and the second terminal unique number. In the method of using a terminal exchange in a mobile communication system, A first process of storing a subscriber authentication number registered in a mobile communication service and transmitting a terminal exchange use request signal to a mobile switching center by a first terminal having a first terminal unique number according to a terminal exchange use request by a user; A second process of providing, by the mobile switching center, an authentication code for terminal exchange use to the first terminal when the terminal exchange use request signal is received; When the first terminal receives the authentication code, the first terminal encrypts the first terminal unique number to generate a first virtual terminal unique number. A third process of transmitting the terminal unique number to a second terminal not registered in the mobile communication service;  When the second terminal receives the authentication code, the subscriber authentication number and the unique number of the virtual terminal of the first terminal stores the subscriber authentication number, and encrypts the second terminal unique number to generate a second virtual terminal unique number A fourth process of transmitting the authentication code and the first and second virtual terminal unique numbers to a mobile switching center; After the mobile switching center receives the authentication code and the first and second virtual terminal identification numbers, decodes the first and second virtual terminal identification numbers, obtains first and second terminal identification numbers, and then executes mobile communication. A fifth process of registering a terminal unique number previously registered in the service by changing from a first terminal unique number to a second terminal unique number; And a sixth process in which the second terminal receives a mobile communication service using the subscriber identification number and the second terminal unique number.