KR100587778B1 - Password call control method in asynchronous network - Google Patents

Abstract

The present invention relates to a password call control method in an asynchronous network.

The present invention includes the steps of retrieving information related to a password call permission service for a receiving subscriber when a call connection request is made; Performing a predetermined procedure for obtaining a password from the calling party subscriber; Comparing whether a password obtained by performing the procedure is identical with a previously registered password; As a result of the comparison, if the password is not the same, it comprises a method comprising the step of performing a separate additional service.

Accordingly, in the present invention, when a call is connected in an asynchronous network mobile communication system, a password inputted by retrieving password call permission service related information for a receiving subscriber and then performing a predetermined procedure for obtaining a password from the calling subscriber is inputted. And compares the registered password with the same or not, and determines whether to allow the call accordingly, and if the password is not the same as the result of the comparison, by performing a separate additional service, the receiver does not want to call Since the call is not allowed, there is an effect of reducing the inconvenience caused by the connection of the unwanted call.

Description

PASSWORD CALL CONTROL METHOD IN ASYNCHRONOUS NETWORK}             

1 is a flowchart illustrating a call connection process in a conventional asynchronous subscriber network location register.

Figure 2 is a flow chart showing the operation of the password call control method in the asynchronous network of the present invention.

3 is a diagram illustrating a subscriber information table of a subscriber home location register database in a password call control method in an asynchronous network of the present invention.

4 is a diagram illustrating a password call admission service table in a password call control method in an asynchronous network of the present invention.

5 is a flow chart illustrating a message flow upon activation of a password call admission service in a password call control method in an asynchronous network of the present invention.

FIG. 6 is a flowchart illustrating a message flow when a specific additional code is input through a terminal in a password call control method in an asynchronous network according to the present invention. FIG.

*** Description of the symbols for the main parts of the drawings ***

The present invention relates to an asynchronous network mobile communication system, and in particular, when a call connection request is made in an asynchronous network mobile communication system, after searching for information related to a password call permission service for a receiving subscriber, the receiving subscriber receives a password call allowing service. In the case of registration, a password call control method in an asynchronous network that determines whether to allow a call by comparing a input password with a previously registered password by performing a predetermined procedure for obtaining a password from a calling party subscriber. will be.

Referring to the call connection process in a general asynchronous network subscriber home location register, as shown in FIG. 1, when a mobile subscriber attempts to connect a call, the subscriber's home location register (HLR) generates and dials the call. The mobile station receives a location information request message from a gateway mobile services switching center (GMSC) that detects the detected digit (S100).

Then, after decoding the parameter in the received message, it is checked whether there is an error in the received message and the message content (S101).

At this time, if there is no error in the received message, the message is processed according to the dialed digit, and if there is an error, an error message is transmitted to the corresponding mobile communication switching center (S102).

The subscriber information is searched through a database in the subscriber's home location register to check whether there is an additional service registered for the subscriber, and as a result, the subscriber is processed for the service or call restriction. It performs (S103).

Then, it checks whether there is a request for call forwarding processing in the received message, performs call forwarding processing, and initializes information for processing a CAME (Network Customized Application for Mobile network Enhanced Logic) intelligent network. After checking whether there is processing capability, call connection is performed accordingly (S104, S105).

On the other hand, when a call is connected through an asynchronous network, the receiving subscriber's terminal notifies that a call has been made. In this case, the receiving subscriber does not answer or cuts the power (power-down) when an incoming call is not received. To avoid calls.

As described above, in the conventional technology, when a call is connected in an asynchronous network mobile communication system, an unsolicited call is attempted and a call is made to the terminal of the receiving subscriber, thereby making the call unnecessary. Due to the inconvenience caused in the daily life of the receiving subscriber, as well as the power-down (power-down) there was a problem that can not receive the desired call.

Accordingly, the present invention has been proposed to solve the above-mentioned problems. When a call is connected in an asynchronous network mobile communication system, the receiver receives a password call related service related information after receiving a password. If the call admission service is registered, a predetermined procedure for obtaining a password from the calling party subscriber is performed to compare whether the input password and the registered password are the same, and to determine whether to allow the call accordingly. The purpose of the present invention is to provide a method for performing an additional additional service when the password is not the same as a result of the comparison.

The present invention for achieving the above object comprises the steps of retrieving the information related to the password call permission service for the receiving subscriber when the call connection request; Performing a predetermined procedure for obtaining a password from the calling party subscriber; Comparing whether a password obtained by performing the procedure is identical with a previously registered password; As a result of the comparison, if the password is not the same, it comprises a step of performing a separate additional service.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention is implemented in an asynchronous network consisting of a Gateway Mobile Services Switching Center (GMSC), Visitor Location Register (VLR), Subscriber Home Location Register (HLR), and the like.

In the asynchronous network mobile communication system, when there is a call connection request from any originating subscriber, the subscriber home location register receives the location information request message from the mobile switching center, and then the additional service registered with respect to the receiving subscriber is In operation S200 and S201, a password call permission service related information regarding a receiving subscriber is searched.

That is, the subscriber home location register searches the subscriber information table and the password call permission service table for the receiving subscriber in the internal database to confirm the password call permission service status and the registered password for the receiving subscriber.

That is, as shown in Fig. 3 and Fig. 4, the password call permission service attribute (PCA Attribute) in the subscriber information table is an attribute added separately in the subscriber information table, and whether or not the password call permission service is registered and the service in case of registration. Provides information about activation.

Here, the subscriber information table stores subscriber related information distinguished by subscriber number (MIN, IMSI, etc.), terminal's unique number (Electronic Serial Number (ESN)), terminal's activation / power-down state, and the like. .

In addition, in the present invention, a password call permission service attribute is separately added among attributes of the subscriber information table to store information on the state of the password call permission service, and whether or not the corresponding service is registered in the password call permission service attribute; If registered, it indicates whether it is activated or not.

In addition, a separate password call permission service table is added for each subscriber to a subscriber who registers a password call permission service, and the table may be modified according to a service type set by the subscriber, and the 'diver_number' attribute in the table If additional call service (call transfer, voice mail service, short message service, etc.) to link when call fails due to password mismatch, the number of pre-registered passwords and the number of passwords registered by service subscriber in 'numofmember and password1 ~ password10' attributes This means that a plurality of pre-registered passwords are registered.

Then, the subscriber home location register checks the status of the subscriber information table and the password call admission service table, and determines whether the password call admission service for the receiving subscriber is activated and whether the password is registered in the password call admission service table. If the password call permission service of the corresponding subscriber is not activated, the subsequent call processing is performed, such as finding the location of the receiving subscriber and connecting the call accordingly (S202).

If the password call permission service for the receiving subscriber is activated and the password is registered in the password call permission service table, the subscriber home location register performs a password acquisition procedure with the calling party subscriber through the mobile communication switching center. (S203).

Next, a comparison is made between whether the password inputted through the password acquisition procedure and the registered password are the same, and in the case of the same, subsequent call processing is performed such as finding a location of the receiving subscriber and connecting a call (S204, S205).

As a result of the comparison, if it is not the same, it is checked whether a separate supplementary service is linked in the password call permission service table, and the separately linked supplementary service is performed or the call processing is terminated (S206 to S208).

Then, in step S204, if the password inputted by the calling party subscriber is not the same as the pre-registered password, as shown in Fig. 5, the password is received from the calling party subscriber through the mobile communication switching center at the subscriber home location register. In order to obtain, it will typically include requiring the calling subscriber to re-enter the password for a predetermined number of times.

That is, the mobile telecommunication switching center requests a password to the calling subscriber, and the calling subscriber sends a digit in which the password is input to the mobile telecommunication switching center, so that the password request response includes the password received from the mobile telecommunication switching center to the subscriber home location register. The message is transmitted, and accordingly, the subscriber home location register determines whether the previously registered password is the same as the received password.

When the subscriber home location register receives a message indicating that the password inputted from the mobile communication exchange is approved, the subscriber home location register performs a procedure for connecting a call, and the subscriber home location register registers the location information of the corresponding subscriber. The subscriber location information message is transmitted to the visitor location register, and the response message to the location information request message is transmitted to the mobile communication switching center.

Further, even after performing the password acquisition procedure for a predetermined number of times, if the password inputted by the calling party subscriber is not the same as the registered password, a separate additional service is linked to the password call permission service table in step S206. When the response message for the location information request message is transmitted from the subscriber's home location register to the mobile communication switching station, the response message includes an additional service, and the mobile communication switching station transmits the corresponding calling party. Have the subscriber perform additional services.

That is, if the call connection fails due to a password mismatch, if the call transfer is registered as an additional service, the call message is transmitted by including the transfer number stored in the password call permission service table in the response message so that the call is transferred to another number and connected. If a voice mail service (VMS) is registered, the recorded announcement is transmitted to the calling subscriber.

If no additional service is registered, the call is rejected together with the announcement. When the call is rejected as a separate additional service, call rejection information is transmitted through an appropriate short message service (SMS). Can be notified.

On the other hand, in order to change the status and password of the password call permission service, such as by activating / deactivating the service or changing the registered password by the subscriber who has registered the password call permission service, a method of selecting a menu displayed on the subscriber's terminal and the subscriber Two methods of attempting to make a call by directly inputting a specific additional code through the terminal are used.

When a subscriber wants to change subscriber information in connection with an additional service in an asynchronous network, a method of selecting a displayed menu is used. In this case, when a subscriber selects a desired item from a menu displayed on a display device of the terminal, Since the subscriber information is changed by processing such as RegisterSS or ActivateSS, the types of additional services that can be supported by the system are limited.

On the other hand, when the subscriber attempts to call a specific additional code on the terminal to change the subscriber information in connection with the additional service, entering a predetermined code number together with '* (asterisk)' using the terminal keypad. That is, in this method, the code number directly input by the subscriber is transmitted to the subscriber home location register, thereby modifying the information of the corresponding subscriber information table and the password call permission service table of the database, thereby supporting various additional services.

Therefore, in the present invention, in order to perform a procedure such as activating / deactivating a corresponding service or changing a registered password, a subscriber who has registered a password call permission service directly inputs a specific additional code through the subscriber's terminal to make a call. Use the method to try.

That is, as shown in FIG. 6, when a subscriber inputs a specific additional code through the terminal, the additional code inputted by the subscriber at the input terminal is configured as an unstructured supplementary service data (USSD) request message. The data is transmitted to the subscriber home location register through the visitor location register.

Then, the subscriber home location register receives the MAP open instruction message from the visitor location register to perform the Mobile Application Part (MAAP) protocol, and then analyzes the USSD request message received from the visitor location register accordingly.

That is, the USSD block in the subscriber's home location register analyzes the additional code input by the subscriber included in the USSD request message, and the linked additional service is linked when the call connection fails due to activation / deactivation of the password call permission service, password, and password mismatch. It recognizes the conversion number, voice mail service, short message service, etc., and checks whether the subscriber has registered the service and changes the subscriber information table and password call service table to the contents of the additional code input by the subscriber. do.

When the information change is normally completed, the MAP processing USSD response message is constructed and transmitted to the terminal through the visitor location register and the mobile communication switching center.

In this case, the subscriber home location register transmits and receives a subscriber information change message and a response message to the visitor location register, thereby matching the subscriber information stored in the database of the subscriber home location register and the visitor location register according to the change of the subscriber information. Perform.

As described above, according to the present invention, when a call connection in an asynchronous network mobile communication system is retrieved, information related to a password call permission service for a receiving subscriber is retrieved, and when the receiving subscriber registers for a password call permission service, the calling party receives the calling party. By performing a predetermined procedure for acquiring a password from the subscriber, whether the input password and the pre-registered password are the same, and determining whether to allow the call accordingly, and if the comparison is not the same By performing a separate supplementary service, since the receiving subscriber does not allow a call for a call that is not desired, there is an effect of reducing the inconvenience caused by connection of an unwanted call.

Claims (7)

Retrieving password call permission service related information for a receiving subscriber when a call connection request is made; Performing a predetermined procedure for obtaining a password from the calling party subscriber; Comparing whether a password obtained by performing the procedure is identical with a previously registered password; And performing a separate additional service when the password is not the same as a result of the comparison. 2. The asynchronous password call service of claim 1, wherein the password call permission service comprises an unstructured supplementary service data (USSD) of the additional code inputted through the terminal of the subscriber to change the state and password of the password call permission service. Password call control in the network. 2. The method of claim 1, wherein the predetermined procedure for obtaining a password comprises: requesting a password from a mobile subscriber station by a calling party subscriber under the control of a subscriber home location register; Receiving, at the mobile telecommunication switching center, a password request response message including a password from a calling party subscriber and transmitting the password request response message to a subscriber home location register; And repeating a process of obtaining a password from a calling party subscriber at a subscriber home location register via a mobile communication switching center for a predetermined number of times. The method of claim 1, wherein the retrieving the password call permission service related information comprises: a subscriber information table and a password call permission service table of a receiving subscriber in a subscriber home location register database when a call connection request is received from a calling subscriber. Searching for; And confirming a status of a password call permission service and a pre-registered password for the receiving subscriber as a result of the search. The method of claim 1, wherein the performing of the additional additional service comprises: checking whether the additional additional service is linked in a password call permission service table; And performing a corresponding additional service when the separate additional service is linked and terminating the call processing when the additional additional service is not linked. The password call permission service table of claim 4 or 5, wherein the password call permission service table includes a number of pre-registered passwords and a plurality of passwords, and additional additional service related information to be linked when a call is rejected to determine whether to accept a call. Password call control method in an asynchronous network, characterized in that. The method of claim 1, wherein the additional service includes a call transfer service, a voice mail service, and a short message service.

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