KR20090118770A - System rejecting of location register requested by non-register mobile terminal and method thereof - Google Patents

Abstract

PURPOSE: A location registration rejecting system of a non-registration portable terminal and a method thereof are provided to reject abnormal location registration occurring in a non-registration portable terminal, thereby reducing a location registration processing load. CONSTITUTION: A portable terminal(100) transmits a location registration request signal. An authentication server(122) performs authentication through the information of the transmitted portable terminal. If the location registration request signal is received from the portable terminal, a location registration server(121) determines that the location registration request signal is the first. If the location registration request signal is the first, the location registration server determines whether to perform location registration according to an authentication result of the authentication server. If the location registration request signal is a non-registration portable terminal, the location registration server limits location registration of the portable terminal.

Description

System Rejecting of Location Register Requested by Non-Register Mobile Terminal and Method etc.

The present invention relates to a system for rejecting location registration of an unregistered portable terminal and a method thereof, and more particularly, when a location registration is requested from an unregistered portable terminal due to loss, theft, or termination, the authentication of the portable terminal is performed for the first time. In the case of a terminal, the location registration rejection system of an unregistered portable terminal that rejects the location registration of an unregistered portable terminal and re-refuses the location registration without authentication of the portable terminal when the location registration is re-requested from the unregistered portable terminal whose location registration is rejected And to a method thereof.

There is an increasing number of idle mobile terminals that remain unregistered due to loss, theft, or termination. In addition, as an abnormal location registration occurs excessively in an unregistered portable terminal, it is being raised as a new problem of the system.

More specifically, when a non-registered portable terminal requests a location registration to a mobile communication operator system operated by a previously registered mobile carrier, if the system is in a state of disability, the illegal location registration is requested to another nearby mobile operator system. This is happening excessively. As a result, a large failure of the system occurs due to an increase in the load of the other mobile operator systems, and users of normal mobile terminals registered with other mobile operators operating other mobile operator systems cannot smoothly receive mobile communication services. A problem occurs.

Currently, when a mobile terminal requests location registration from a mobile communication provider system, the VLR (Visitor Location Register) included in the exchange retrieves the information of the mobile terminal, and if the information does not exist, the VLR is unconditionally located as a home location register (HLR). Request registration. Thereafter, the HLR inquires the subscriber information of the portable terminal, determines the location registration or rejection of the location registration according to whether the portable terminal is registered, and notifies the exchange to the exchange. However, the technology currently used uses the VLR and HLR included in the exchange whenever the location registration is requested from an unregistered mobile terminal, so that the location registration request is rejected for the location registration request. The problem arises that the system cannot be used stably.

In order to solve these problems, an object of the present invention is to limit the abnormal location registration generated in the unregistered mobile terminal in advance in the location registration server, the location registration rejection system of the unregistered portable terminal capable of operating the system stably; To provide that method.

Another object of the present invention is a system and method for rejecting a location registration of an unregistered portable terminal, which converts the portable terminal into a locked state at the time of initial registration in the case of an unregistered portable terminal, thereby making it impossible to make a telephone call to a telephone number except an emergency telephone number. To provide.

It is still another object of the present invention to provide a location registration rejection system and a method for rejecting a location registration of an unregistered portable terminal that immediately rejects a location registration request without authentication of the portable terminal when the location registration is requested again by an unregistered portable terminal whose location registration has been rejected. have.

In order to achieve these objects, the location registration rejection system of an unregistered portable terminal according to the present invention includes a portable terminal for transmitting a location registration request signal, an authentication server for performing authentication with information of the portable terminal transmitted from the portable terminal, and the portable device. When the location registration request signal is received from the terminal, it is determined whether the location registration request signal is the first, and if it is the first time, it is determined whether to register the location according to the authentication result of the authentication server. It characterized in that it comprises a location registration server for limiting the location registration of the portable terminal.

In addition, the mobile terminal is characterized by limiting the telephone call to the telephone number except the emergency telephone number including 112 by the location registration restrictions.

In addition, the authentication server is characterized in that for transmitting the authentication failure signal to the location registration server if the authentication of the mobile terminal is not confirmed.

The location registration server may generate a location registration request rejection message corresponding to the authentication failure signal provided by the authentication server, transmit the location registration request rejection message to the portable terminal, and store the location registration request rejection message and the information of the portable terminal by mapping. It is done.

The location registration server may retransmit the location registration request rejection message mapped with the information of the portable terminal to the portable terminal if the portable terminal is an unregistered portable terminal.

In addition, the information of the portable terminal is characterized in that the information of the portable terminal including the unique number, serial number, subscriber information and location information of the portable terminal.

In addition, the location registration rejection method of the unregistered portable terminal according to the present invention includes the steps of (a) transmitting a location registration request signal from the mobile terminal to the location registration server, (b) location registration receiving the location registration request signal from the mobile terminal Determining whether the location registration request signal is first received from a server; (c) if the location registration request signal is received for the first time, authentication is performed through an authentication server; and if not, the mobile terminal is not registered. (D) if the portable terminal is an unregistered portable terminal, limiting location registration of the portable terminal; and performing location registration if the portable terminal is a registered portable terminal.

Further, after the step of restricting the location registration of the mobile terminal and performing the location registration if the mobile terminal is registered, the mobile terminal cannot make a telephone call to the phone number except the emergency telephone number including 112 due to the location registration restriction. It further comprises the step of limiting to.

The method may further include transmitting an authentication failure signal to the location registration server when the location registration request signal is first received, when authentication is not confirmed through the authentication server.

In addition, after receiving the authentication failure signal from the authentication server, the location registration server generates a location registration request rejection message corresponding to the authentication failure signal transmitted from the authentication server, and transmits the message to the mobile terminal and requests the location registration request. The method may further include mapping and storing the rejection message and the information of the mobile terminal.

In addition, after checking whether the portable terminal is an unregistered portable terminal, the location registration server retransmits the stored location registration request rejection message mapped with the information of the portable terminal to the portable terminal if the portable terminal is an unregistered portable terminal. Characterized in that it further comprises the step.

In addition, the information of the portable terminal is characterized in that the information of the portable terminal including the unique number, serial number, subscriber information and location information of the portable terminal.

As described above, the present invention has the effect of stably operating the system by reducing the location registration processing load by rejecting abnormal location registration generated in an unregistered portable terminal.

In addition, the present invention, when the initial authentication is performed and abnormal location registration occurs in an unregistered portable terminal, by re-rejecting the location registration request without authentication of the portable terminal, reducing the load on the system and the signal network and prevent illegal calls in advance This can be done.

In addition, the present invention, in the case of an unregistered mobile terminal, by changing the lock state at the time of initial location registration to make a telephone call with a phone number except the emergency telephone number is impossible, thereby reducing the location registration processing load and reducing the load on the signal network to provide a stable system. It has a sustainable effect.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention belongs and are not directly related to the present invention are omitted. This is to more clearly communicate without obscure the core of the present invention by omitting unnecessary description.

In the present invention, the portable terminal is a mobile terminal which is not registered with the mobile communication company due to theft, loss, termination, etc., and includes a mobile communication terminal, a mobile phone, a personal digital assistant (PDA), a smart phone, and the like. Can be used in place of.

In addition, in the present invention, the mobile terminal is a terminal that is independent of communication methods such as a terminal based on CDMA, a terminal based on WCDMA, a terminal based on GSM, and a terminal based on All-IP. It is preferable.

1 is a block diagram showing the main configuration of a system for rejecting the location registration of an unregistered portable terminal according to an embodiment of the present invention.

Referring to FIG. 1, a system 10 for rejecting location registration of an unregistered portable terminal includes a portable terminal 100, a base station 110, and a communication network 120. At this time, the communication network 120 includes a location registration server 121 and the authentication server 122 as a communication network of the mobile communication company of the mobile terminal 100.

The mobile terminal 100 communicates with another terminal (not shown) using a communication path connected to the communication network 120. The mobile terminal 100 requests a location registration from the communication network before a communication path with the communication network 120 is formed. The mobile terminal 100 transmits the location registration request signal Req_SIG and information of the mobile terminal. In this case, the information of the mobile terminal preferably includes a unique number, a serial number (IMEI, International Mobile Equipment Identity or ESN, Electronic Serial Number), subscriber information, and location information, which is a telephone number of the mobile terminal 100.

The base station 110 is a base station transceiver (BST), and includes a wireless transceiver for providing a wireless interface with the mobile terminal 100. For example, communication with land mobile stations such as Global Systems for Mobile Communication (GSM) or BST in CDMA network, Node-B in WCDMA network, and RAS (Radio Access Station) in WiBro network, or by relay of mobile relay station Radio stations established on land and not moving.

The communication network 120 connects a communication path between the mobile terminal 100 and another terminal. For an embodiment of the present invention, the communication network 120 may include a location registration server 121 and the authentication server 122. In this case, the communication network 120 refers to an IP network composed mainly of IP, and the IP network can transmit / receive large amounts of data and provide seamless data services. In addition, the IP network preferably means an All-IP network having a structure in which different networks are integrated based on the Internet protocol. In addition, the communication network 120 preferably includes a call state control function (CSCF), but since the call controller is responsible for the part related to call and session processing, it is not closely related to the embodiment of the present invention. Is omitted.

The location registration server 121 is a media resources function (MRF) and is responsible for data processing. The location registration server 121 performs functions such as packet routing and transmission, mobility management, logical link management, and multimedia session control. When the location registration server 121 receives the location registration request signal Reg_SIG and the information of the mobile terminal from the mobile terminal 100, the location registration server 121 determines whether the location registration of the mobile terminal 100 is first or not, and the location registration is first. In one case, the Reg_SIG received from the mobile terminal 100 and the information of the mobile terminal are transmitted to the authentication server 122 in order to check whether the mobile terminal 100 is registered (ie, authentication).

In addition, when the location registration server 121 receives the authentication failure signal of the mobile terminal 100 from the authentication server 122, and generates a location registration request rejection message (R_Rej_MSG) corresponding to the authentication failure signal, the mobile terminal 100 To send. In addition, the location registration server 121 transfers the R_Rej_MSG, and converts the state of the mobile terminal 100 to the locked state. In this case, the locked state of the mobile terminal 100 means a state in which the mobile terminal 100 cannot talk to another terminal corresponding to the telephone number except the emergency telephone numbers 112 and 119.

In addition, the location registration server 121 maps and stores the information of the R_Rej_MSG and the mobile terminal. If the location registration request of the mobile terminal 100 is not the first, the location registration server 121 retrieves the information of the mobile terminal and retransmits the R_Rej_MSG mapped with the information to the mobile terminal 100.

The location registration server 121 may count the number of location registrations requested by the mobile terminal in an unregistered state, and transmit the counted value to the mobile terminal 100. When the counted value is greater than or equal to a specific value, the mobile terminal 100 ) Can be permanently restricted.

The authentication server 122 is a home subscriber server (HSS), which combines authentication functions with functions of a general home location register (HLR) to perform subscriber information management in an All-IP network. The authentication server 122 manages subscriber information and location information of the mobile terminal 100. The authentication server 122 performs authentication of the mobile terminal 100 with the information of the mobile terminal transmitted from the location registration server 121. When the authentication of the mobile terminal 100 is completed, the authentication server 122 performs location registration of the mobile terminal 100, and if authentication is not completed, the authentication server 122 sends an authentication failure signal to the location registration server 121. send. The authentication server 122 compares the serial number and subscriber information transmitted from the mobile terminal 100 with the subscriber information managed by the authentication server 122, and then determines whether the mobile terminal 100 is registered to determine whether the mobile terminal 100 is registered. ) Authentication.

2 is a flowchart illustrating a process of rejecting location registration of an unregistered portable terminal according to an embodiment of the present invention.

1 and 2, the mobile terminal 100 requests a location registration request signal for requesting a location registration with the communication network 120 to connect a communication path necessary when performing a call with another terminal (not shown). (Req_SIG) and the information of the mobile terminal are transmitted to the location registration server 121 (step S201). In this case, the information of the mobile terminal preferably includes the unique number, serial number, subscriber information, and location information of the mobile terminal 100.

Thereafter, the location registration server 121 searches the serial number from the information of the mobile terminal transmitted from the mobile terminal 100 and determines whether the requested location registration is the first in step S201 (step S202). If it is determined that the location registration request from the mobile terminal 100 is the first (Yes in step S202), the location registration server 121 proceeds to step S203, and if not the first time (No in step S202), the location registration server 121 registers the location. The server 121 proceeds to step S210.

Then, the location registration server 121 transmits the information of the Req_SIG and the portable terminal transmitted from the portable terminal 100 to the authentication server 122 (step S203). The authentication server 122 performs authentication of the mobile terminal 100 with the information of the mobile terminal transmitted from the location registration server 121 (step S204). In this case, the authentication of the mobile terminal 100 performs authentication by determining whether the mobile terminal 100 is registered after comparing the serial number and the subscriber information, which is the information of the mobile terminal, with the subscriber information managed by the authentication server 122. It is desirable to.

Next, the authentication server 122 determines whether the authentication is completed (step S205), and when the authentication is confirmed (YES in step S205), the authentication server 122 determines that the mobile terminal is registered with the mobile communication company and performs location registration (step S205). S206). At this time, the authentication server 122 performs the location registration with the mobile terminal 100, the authentication is completed (step S206), if the authentication is not completed ('No' in step S205) is determined to be a mobile terminal unregistered in the mobile communication company Proceed to step S207.

In step S207, the authentication terminal signal indicating that the portable terminal 100 is an unregistered portable terminal is transmitted from the authentication server 122 to the location registration server 121. The location registration server 121 generates a location registration request reject message R_Rej_MSG corresponding to the received authentication failure signal (step S208). In addition, the location registration server 121 maps and stores the serial number and subscriber information used when performing authentication among the generated location registration request rejection message and the information of the mobile terminal.

Then, the location registration server 121 transfers the generated location registration request rejection message to the mobile terminal 100 and converts the state of the mobile terminal 100 (step S209). At this time, the state change of the mobile terminal 100 means that the mobile terminal 100 is converted into a locked state so that a call cannot be made with a phone number except for an emergency telephone number.

On the other hand, if the location registration request from the mobile terminal 100 is not the first in step S202 ('Yse' in step S202), the location registration server 121 proceeds to step S210.

In step S210, the location registration server 121 retrieves the information of the mobile terminal transmitted from the mobile terminal 100.

Then, the location registration server 121, if there is a location registration request rejection message mapped to the information of the information search results of the mobile terminal, the mobile terminal 100 corresponding to the information of the mobile terminal is unregistered Recognizing that it is (100) (step S212) and transmits the location registration request rejection message mapped with the information of the mobile terminal 100 to the mobile terminal (100) (step S212).

On the contrary, if it is determined in step S211 that the mobile terminal 100 corresponding to the information of the mobile terminal is the registered mobile terminal 100 ('No' in step S211), the authentication server 122 in the location registration server 121 A location registration request is made (step S203).

In general, a normal terminal does not perform location registration again until there is a change of a specific parameter (eg, unique number, subscriber information, etc.) after performing location registration. However, in an embodiment of the present invention, steps for convenience of description are provided. After performing S211, the process of returning to step S203 was added.

3 is a flowchart illustrating a process of rejecting location registration of an unregistered mobile terminal in a location registration server according to an embodiment of the present invention.

1 and 3, the location registration server 121 receives information of the mobile terminal and the location registration request signal Req_SIG from the mobile terminal 100 (step S301). At this time, the information of the portable terminal preferably includes a unique number, serial number, subscriber information and location information of the portable terminal.

Subsequently, the location registration server 121 determines whether the location registration request from the mobile terminal 100 is the first using information of the mobile terminal transmitted from the mobile terminal 100 (step S302). As a result, if the location registration request from the mobile terminal 100 is the first ('Yes' in step S302), the location registration server 121 performs step S306 from the next step S303, and if the location registration request is not the first time, (No in step S302) The location registration server 121 performs steps S307 to S308.

In step S303, the location registration server 121 transmits the information of the mobile terminal and the location registration request signal transmitted from the mobile terminal 100 to the authentication server 122, and in step S304, the location registration server 121 The authentication failure signal is received from the authentication server 122.

Subsequently, in step S305, the location registration server 121 generates a location registration request reject message R_Rej_MSG corresponding to the received authentication failure signal, and maps the generated location registration request reject message and information of the mobile terminal in which authentication fails. Save it. In step S306, the location registration server 121 transmits a location registration request rejection message to the mobile terminal 100 that has failed authentication, and at the same time, a telephone call from the mobile terminal 100 to the phone number except the emergency number is impossible. The mobile terminal 100 is converted into a locked state so as to be locked.

Next, the location registration server 121 returns to step S301 and receives a location registration request signal from the same mobile terminal 100 as the mobile terminal 100 requesting location registration.

Subsequently, as a result of the determination of the location registration server 121 in step S302, the location registration server 121 proceeds to step S307 because the location registration request from the mobile terminal 100 is not the first.

Thereafter, in step S307, the location registration server 121 retrieves the information of the re-requested mobile terminal, and in step S308, the location registration server 121 maps the stored location registration request rejection message to the mobile terminal 100 Resend to. In the case of retransmitting the location registration request rejection message, since the location registration server 121 performed the state change of the mobile terminal 100 in step S306, it is not necessary to redo the state change. As a result, the unregistered portable terminal initially denied location registration from the authentication server 122 does not reject the location registration in the authentication server 122 because the details of the location registration rejection are present in the location registration server 121, Since the location registration server 121 rejects the location registration, there is an effect that can prevent the load occurring in the system.

So far, a description has been given of the position registration rejection system and method of an unregistered portable terminal according to the present invention. In the present specification and drawings, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, these are merely used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

According to the present invention, by limiting the location registration in the unregistered portable terminal, by preventing the increase of the system load, it is possible to prevent unnecessary waste of money of the mobile communication company due to the failure of the system.

1 is a configuration diagram showing the main configuration of a system for rejecting the location registration of an unregistered portable terminal according to an embodiment of the present invention

2 is a flowchart illustrating a process of rejecting location registration of an unregistered portable terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a process of rejecting location registration of an unregistered mobile terminal in a location registration server according to an embodiment of the present invention.

Claims (12)

A mobile terminal for transmitting a location registration request signal; An authentication server for performing authentication with information of the portable terminal transmitted from the portable terminal; When the location registration request signal is received from the mobile terminal, it is determined whether the location registration request signal is the first time, and if it is the first time, whether to register the location is determined according to the authentication result of the authentication server. A location registration server for limiting location registration of the mobile terminal if the terminal; Location registration rejection system of a non-registered portable terminal, comprising a. The method of claim 1, Wherein the portable terminal location registration rejection system of the unregistered portable terminal, characterized in that by limiting the location registration to limit the phone call to the phone number except the emergency telephone number including 112. The method of claim 1, The authentication server, if the authentication of the portable terminal is not confirmed, the registration registration rejection system of the unregistered portable terminal, characterized in that for transmitting an authentication failure signal to the location registration server. The method of claim 3, The location registration server generates a location registration request rejection message corresponding to the authentication failure signal provided by the authentication server, transmits the location registration request rejection message and the information of the mobile terminal to store the mapping information. Location registration rejection system of an unregistered mobile terminal. The method of claim 4, wherein The location registration server, if the portable terminal is an unregistered portable terminal as a result of the information retrieval, relocates the location registration request reject message stored and mapped to the information of the portable terminal to the portable terminal. Rejection system. The method of claim 1, The information of the mobile terminal Location registration rejection system of an unregistered portable terminal, characterized in that the information of the portable terminal including the unique number, serial number, subscriber information and location information of the portable terminal. (a) transmitting a location registration request signal from the mobile terminal to the location registration server; (b) determining whether the location registration request signal is first received at a location registration server that receives the location registration request signal from the mobile terminal; (c) performing authentication through an authentication server when the location registration request signal is received for the first time, and checking whether the mobile terminal is an unregistered mobile terminal if not received for the first time; (d) if the portable terminal is an unregistered portable terminal, restricting location registration of the portable terminal and performing location registration if the portable terminal is a registered portable terminal; Location registration rejection method of a non-registered portable terminal comprising a. The method of claim 7, wherein Restricting the location registration of the mobile terminal and if the mobile terminal is a registered mobile terminal after the step of performing the location registration, the mobile terminal is restricted from making a phone call to the phone number except the emergency telephone number including 112 by the location registration restriction Making; Location registration rejection method of an unregistered portable terminal, characterized in that it further comprises. The method of claim 7, wherein Transmitting the authentication failure signal to the location registration server when the location registration request signal is first received, when authentication is not confirmed through an authentication server; Location registration rejection method of a non-registered mobile terminal, characterized in that it further comprises. The method of claim 9, After receiving the authentication failure signal from the authentication server, the location registration server generates a location registration request rejection message corresponding to the authentication failure signal transmitted from the authentication server, and transmits the location registration request rejection message to the portable terminal. Mapping and storing information of the mobile terminal and the mobile terminal; Location registration rejection method of an unregistered portable terminal, characterized in that it further comprises. The method of claim 10, After checking whether the portable terminal is an unregistered portable terminal, if the portable terminal is an unregistered portable terminal, retransmitting the stored location registration request rejection message mapped to information of the portable terminal to the portable terminal; ; Location registration rejection method of an unregistered portable terminal, characterized in that it further comprises. The method of claim 7, wherein The information of the mobile terminal Method for rejecting location registration of an unregistered portable terminal, characterized in that the information of the portable terminal including the unique number, serial number, subscriber information and location information of the portable terminal.

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