KR20040024251A - Method for controlling subscriber transmission call process of function interrupt in hlr - Google Patents

Abstract

PURPOSE: A method for controlling a subscriber origination call when a function of an HLR(Home Location Register) stops is provided to perform a call processing by supposing that a firstly roaming subscriber is legal, and to limit the call processing by deciding that other subscriber is illegal, thereby cutting off calls of illegal subscribers. CONSTITUTION: A VLR(Visitor Location Register) inputs an origination subscriber information request from an MSC, and searches subscriber information stored in a self database(S1). The VLR decides whether origination subscriber information is registered in the self database(S2). If so, the VLR decides whether an ESN transmitted from a mobile station is equal to an ESN stored in the database(S3). If so, the VLR decides that an origination subscriber is legal, and outputs the stored subscriber information to the MSC(S4). If the ESN is not equal to the stored ESN, the VLR requests an HLR to perform a registration/notification operation(S5). The VLR inputs a warning notice from the HLR(S6). The VLR supposes that the current origination subscriber is illegal, and outputs a response reject message to the MSC(S7).

Description

Method of controlling subscriber outgoing call processing when function of home location register is stopped {METHOD FOR CONTROLLING SUBSCRIBER TRANSMISSION CALL PROCESS OF FUNCTION INTERRUPT IN HLR}

The present invention relates to a method for controlling subscriber origination call processing when a function of a home location register is interrupted. More specifically, the present invention assumes that a subscriber roams first when a function of a home location register is interrupted and performs call processing and has the same number. A method for controlling subscriber originating call processing when the home location register stops functioning, which makes it possible to determine an illegal subscriber when an ESN (Electronic Serial Number) is called as another subscriber. will be.

In the conventional method of controlling outgoing call processing when the home location register is interrupted, the visitor location register which receives an InfoOGSetup from the exchange by a subscriber roaming for the first time while the function of the current home location register is suspended is provided. As the subscriber information is not received from the home location register without the subscriber information, a method of performing call processing for all subscribers has been used.

However, when the outgoing call processing is controlled using the conventional method as described above, as the call processing is performed for all the roaming subscribers with the function of the home location register stopped, the billing for the illegal subscriber's call is generated. There was a problem that the operator's resources are wasted.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to prevent waste of resources by illegal subscribers and to prevent billing caused for calls of illegal subscribers. The present invention provides a method for controlling subscriber origination call processing when a function of a home location register is interrupted.

In order to achieve the above object, in the method of controlling subscriber origination call processing when the function of the home location register of the present invention is interrupted, the visitor locator receives the calling party information request (InfoOGSetup) from the exchange and returns the calling party number. A first step of searching for subscriber information stored in its database;

A second step of determining, by the visitor location register, whether caller information is registered in its database;

A third step of determining whether the visitor locator registers whether the ESN from the mobile station and the ESN stored in the database are the same when the subscriber information is registered in the second step; And

When the ESN from the mobile station and the ESN stored in the database are the same in the third step, the visitor location register determines the calling subscriber as a normal subscriber and outputs subscriber information stored in the corresponding database to the exchange. It is characterized by consisting of four steps.

1 is a functional block diagram illustrating a method for controlling subscriber origination call processing when a function of a home location register is interrupted according to an embodiment of the present invention;

2 is a flowchart illustrating a method for controlling subscriber origination call processing when a function of a home location register is interrupted according to an embodiment of the present invention.

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

100: mobile station 200: exchanger

300: Visitor Location Register (VLR) 400: Home Location Register (HLR)

Hereinafter, a method for controlling subscriber origination call processing when a function of a home location register according to an embodiment of the present invention is interrupted will be described in detail with reference to the accompanying drawings.

1 is a functional block diagram of a subscriber origination call processing control device when a function of a home location register is interrupted according to an embodiment of the present invention. The call processing control device is composed of a mobile station 100, an exchanger 200, a visitor location register 300, and a home location register 400.

The mobile station 100 is a mobile subscriber device that can be mounted on a vehicle or possessed by a user to terminate a wireless line, and serves to output an outgoing call to the exchange 200.

In addition, the switch 200 is a central part of a mobile communication network that provides exchange functions between mobile communication subscribers, fixed network subscribers such as a mobile communication subscriber and a public telephone switching network, and a comprehensive information communication network. It receives an incoming call and at the same time performs an exchange function of the corresponding call processing.

In this case, a network connection is made between the mobile station 100 and the switch 200 through a base station and a control station (not shown), and the base station is a call processing and shape information management, statistics and measurement, and faults that are inherent to the existing base station. It is a system that handles functions such as error / error handling, and provides a seamless interface with the control station. A system that performs a function related to paging support and system maintenance, and outputs an outgoing call received through the base station to the switch 200.

In addition, the visitor location register 300 temporarily stores all information about mobile stations 100 existing in a region managed by the visitor location register 300 and uses the information to set up a call by the mobile subscriber. It serves to transmit subscriber information to the exchange 200 for the subscriber information request from the exchange 200.

Here, the subscriber information stored in the database of the visitor location register 300 is continuously modified according to the movement of the mobile station 100, and the data related to the home location register 400 is always kept the same.

The home location register (400) is a system for storing and managing subscriber parameters and location information for all mobile stations 100 registered in its mobile communication network. It registers important data such as additional service and performs routing function to called subscriber.

Next, a method of controlling a subscriber originating call processing when a function of a home location register is interrupted using a subscriber originating call processing control device when a function of a home location register having the above configuration is suspended will be described.

2 is a flowchart illustrating a method for controlling subscriber origination call processing when a function of a home location register is interrupted according to an embodiment of the present invention.

First, the visitor location register 300 receives the subscriber information request (InfoOGSetup) from the exchange 200 and then retrieves subscriber information stored in its database using the subscriber number as a key (S1). ).

Subsequently, the visitor location register 300 determines whether caller information is registered in its database (S2).

At this time, when the subscriber information is registered in the second step (S2), the visitor location register 300 determines whether the ESN raised from the mobile station 100 and the ESN stored in the database are the same (S3). ).

In the third step S3, if the ESN raised from the mobile station 100 and the ESN stored in the database are the same, the visitor location register 300 determines the calling subscriber as a normal subscriber and at the same time its own data. The subscriber information stored in the base is output to the switch 200 (S4).

Herein, the operation up to the fourth step S4 indicates a process performed by the normal calling subscriber when the function of the home location register 400 is interrupted.

On the other hand, if the ESN raised from the mobile station 100 and the ESN stored in the database are not the same in the third step S3, the visitor location register 300 uses the ESN raised from the mobile station 100. A request is made to the home location register 400 to perform registration / notification operation (S5).

Subsequently, the visitor location register 300 does not receive subscriber information from the home location register 400 and receives a warning notification (S6). Here, the home location register 400 is in a suspended state.

Thereafter, the visitor location register 300 assumes that the current calling subscriber is an illegal subscriber, and then outputs a response rejection to the corresponding calling subscriber information request to the exchange 200 (S7).

Here, the operations from the fifth step (S5) to the seventh step (S7) is a case in which the redial is made while the function of the home location register 400 is stopped, and the visitor subscriber information is stored in the visitor location register 300. It exists in the database and shows the operation process when ESN is different.

At this time, if the calling subscriber in the operation process from the fifth step S5 to the seventh step S7 is an illegal subscriber, call processing is blocked by rejecting the response.

However, when the originating subscriber in the above operation process is a normal subscriber, an illegal subscriber's call is processed and a normal subscriber's call processing fails. In this case, the normal subscriber will contact the operator and thus an abnormal illegal subscriber. The operator who finds that the service is present will block the call to the illegal subscriber.

On the other hand, if the subscriber information is not registered in the second step (S2), the visitor location register 300 performs the operation of registration / notification (Registration Notification) to the ESN from the mobile station 100; Request to the home location register (400) (S8).

Thereafter, the visitor location register 300 does not receive subscriber information from the home location register 400 and receives a warning notification (S9).

Subsequently, the visitor location register 300 treats the current calling subscriber who requested the calling subscriber information in the same manner as a normal subscriber, storing the minimum calling subscriber information in its database and recalling the minimum subscriber information. Output to the exchange 200 (S10).

Here, the operations from the eighth step S8 to the tenth step S10 indicate an operation process of processing a call of the originating subscriber who roams for the first time while the function of the home location register 400 is stopped.

As described above, according to the method for controlling subscriber origination call processing when the home location register stops functioning according to the present invention, it is assumed that the first roaming subscriber is normal when the function of the home location register is interrupted. When ESN is called by another subscriber, it is possible to limit the call processing by judging it as an illegal subscriber, thereby preventing the waste of resources by blocking the illegal subscriber's call and also charging the charges generated for the illegal subscriber's call. There is an effect that can be prevented.

Claims (3)

A first step of the visitor locator searching for subscriber information stored in its database using the calling party number as a key after receiving the calling party information request (InfoOGSetup) from the exchange; A second step of determining, by the visitor location register, whether caller information is registered in its database; A third step of determining whether the visitor locator registers whether the ESN from the mobile station and the ESN stored in the database are the same when the subscriber information is registered in the second step; And When the ESN from the mobile station and the ESN stored in the database are the same in the third step, the visitor location register determines the calling subscriber as a normal subscriber and outputs subscriber information stored in the corresponding database to the exchange. The subscriber originating call processing control method when the function of the home location register is interrupted, comprising four steps. The method of claim 1, If the ESN from the mobile station and the ESN stored in the database are not the same in the third step, the visitor location register requests the home location register to perform a registration notification of registration / notification to the ESN from the mobile station; step; A sixth step in which the visitor location register does not receive subscriber information from the home location register but receives a notification; And And a seventh step of determining, by the visitor location register, the current calling subscriber as an illegal subscriber, and outputting a corresponding rejection of the caller information request to the exchange. Method of controlling subscriber outgoing call processing in city. The method of claim 1, An eighth step of requesting, by the visitor location register, a home location register to perform an operation of registration / notification to the ESN uploaded from the mobile station when the subscriber information is not registered in the second step; A ninth step in which the visitor location register does not receive subscriber information from the home location register but receives a notification; And The visitor location register treats the current calling subscriber who requested the calling party subscriber information in the same manner as a normal subscriber, storing the minimum calling subscriber information in its database and outputting the minimum subscriber information to the exchange. The method for controlling subscriber call when the function of the home location register is interrupted, comprising 10 steps.