KR20000073699A - Method for restricting call of calling subscriber according to prefix number in mobile communication system - Google Patents

Abstract

PURPOSE: A method for limiting calls of an originating subscriber in a mobile communication system is provided to configure a home/roaming limit prefix number information table for limiting a call access of a home/roaming subscriber relating to a specific incoming prefix number, so as to limit a call access of the originating subscriber, depending on whether the originating subscriber is a homer or a roamer and according to the incoming prefix number. CONSTITUTION: A mobile switching center(MSC) divides originating subscribers into homers or roamers to store the divided subscribers. The MSC sets up call access limits relating to the homers and the roamers in a specific incoming prefix number, and stores information on the call access limits. The MSC receives an originating telephone number and an incoming telephone number from a mobile station. The MSC analyzes the originating/the incoming telephone numbers. The MSC identifies whether the call access limits are set up in an incoming prefix number of the incoming telephone number. If so, the MSC identifies whether an originating subscriber of the mobile station is a homer or a roamer. If the originating subscriber is the homer and the incoming prefix number limits a call access relating to the homer, the MSC limits the call access relating to the incoming prefix number. If the originating subscriber is the roamer and the incoming prefix number limits a call access relating to the roamer, the MSC limits the call access relating to the incoming prefix number.

Description

Calling method of calling subscriber according to station number in mobile communication system {METHOD FOR RESTRICTING CALL OF CALLING SUBSCRIBER ACCORDING TO PREFIX NUMBER IN MOBILE COMMUNICATION SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system. In particular, a call restriction of a calling subscriber in a mobile communication system restricting call access to a called party number according to home / roaming information of a calling subscriber. It is about a method.

The cellular mobile communication system divides the entire service area into a plurality of base station areas to form cells, which are small service areas, and centrally controls these base stations with a mobile switching center (MSC). This allows the subscriber to continue the call while moving from cell to cell.

FIG. 1 shows a schematic diagram of a typical cellular mobile communication network, which can be applied to all kinds of wireless systems using Code Division Multiple Access (CDMA) technology. A base station (BS) 20 that provides a mobile communication service to a subscriber through a mobile station (MS) 10, and the base station is connected to a public switched telephone network (PSTN) 40; It consists of a mobile switching center (MSC) 30 which connects to another base station.

When the mobile terminal 10 transmits a specific called telephone number to the switching center 30 to request an outgoing call, the switching center 30 sends a call to the calling mobile terminal 10 and the called mobile terminal from the location registration system 35. Obtain the subscriber information and connect the call between the two mobile terminals.

At this time, if the mobile switching center where the subscriber information of the mobile terminal is initially registered is called a home mobile switching center (Home MSC) of the mobile terminal, the subscriber of the mobile terminal in the area of the home mobile switching center becomes a home subscriber and becomes a home mobile switching center. A subscriber of a mobile terminal out of the area and within another mobile switching center area becomes a roamer.

In general, a roaming service is a process in which a mobile terminal is provided with a service outside a mobile switching center operated by one operator so that the service can be provided in a mobile switching center operated by another operator. The terminal can be classified as its prefix number.

When providing a roaming service to a mobile terminal, the mobile switching center needs to provide services of the mobile terminal separately for each service provider. For example, mobile switching centers need to restrict or allow outgoing calls required by other operators' mobile terminals. At this time, the unit for distinguishing the registered mobile terminal is the station number. However, in the conventional mobile communication system, there is a problem that a method of restricting call access of the mobile terminal using the called station number has not been provided. .

Accordingly, an object of the present invention, which is invented to solve the problems of the prior art operating as described above, constitutes a home or roaming restriction station information table for restricting call access of a home or roaming subscriber to a specific called station number The present invention provides a method for calling a calling party according to a station number in a mobile communication system which restricts call access of a calling party according to a station number of a number and whether a calling party is home / roaming.

1 is a block diagram of a typical cellular mobile communication network.

2 is a flowchart illustrating one embodiment of a method for calling a calling subscriber according to the present invention;

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

10: mobile terminal 20: base station

30: mobile switching center 35: location registration system

40: public switched telephone network

In the mobile communication system according to the present invention, which is designed to achieve the above object, an embodiment of a method for calling a caller according to a station number is provided.

Storing, by the mobile switching center, the calling subscriber as a home or roaming subscriber, and setting a call access restriction for the home or roaming subscriber at a specific called party number, and storing the call access restriction information for the called party number by the mobile switching center. (s110);

The mobile switching center receiving an outgoing telephone number and an incoming telephone number from the mobile terminal (s120);

Analyzing, by the mobile switching center, the calling telephone number and the called telephone number (s130);

Checking whether the call access restriction is set in the called station number of the called telephone number (s140);

If a call access restriction is set in the called station number, checking whether the calling subscriber of the mobile terminal is a home or roaming subscriber from the analysis result of the calling telephone number (s150) (s160);

If the calling subscriber is a home subscriber and the called party number restricts call access to the home subscriber, limiting the calling subscriber to the called party number (s170); And

If the originating subscriber is a roaming subscriber and the called party number restricts call access to the roaming subscriber, step S170 is performed to restrict the call access to the called party number.

Another embodiment of the method for calling the calling subscriber according to the station number in the mobile communication system according to the present invention,

Storing, by the mobile switching center, the calling subscriber as a home or roaming subscriber;

Setting call access restrictions for the home or roaming subscriber at a particular called party number, and storing the call access restriction information for the called party number by the mobile switching center;

The mobile switching center receiving an outgoing telephone number and an incoming telephone number from the mobile terminal;

Analyzing, by the mobile switching center, the outgoing telephone number and the called telephone number;

Checking whether the calling subscriber of the mobile terminal is a home or roaming subscriber from the analysis result of the calling telephone number;

If the calling subscriber is a home subscriber and the called party number restricts call access to the home subscriber, restricting the calling subscriber to the called party number; And

If the originating subscriber is a roaming subscriber and the called party number restricts call access to the roaming subscriber, then the calling subscriber is restricted from call access to the called party number.

Another embodiment of the method for calling the calling subscriber according to the station number in the mobile communication system according to the present invention,

Determining whether the calling subscriber is a home subscriber or a roaming subscriber;

Restricting call access to a particular called party number to each of the distinguished originating subscribers' home / roaming subscribers; And

If a call is requested from the originating subscriber to the specific called party number, the call access to the specific called party number is restricted if the restricted condition is met.

The mobile switching center according to the present invention manages a station number table containing information for restricting call access of home subscribers or roaming subscribers for a particular called party number. The station number table stores information about all called station numbers to which the mobile switching center can connect, and that each called station number restricts call access of a home subscriber or roaming subscriber.

Table 1 shows an example of a station number information table according to the present invention.

dialing Call access control 210 Home limited 211 Home limited 212 Roaming restrictions 213 No limit 214 No limit ... ...

When an incoming call is requested for a telephone number having a specific called party number, the mobile switching center checks whether the calling party of the mobile terminal (that is, the calling mobile terminal) requesting the called party is a home subscriber or a roaming subscriber. If the call access of the calling mobile terminal should be restricted according to the home / roaming information, the mobile switching center sends an announcement to inform the calling mobile terminal that the station number is missing.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the preferred embodiment of the present invention.

2 is a flowchart illustrating an embodiment of a method for calling an originating subscriber according to the present invention. As shown in FIG. 2, a mobile switching center sets a call access restriction for a home or roaming subscriber at a particular called party number, and accesses the call. Storing restriction information (s110); Receiving, by the mobile switching center, the calling telephone number and the called telephone number from the calling subscriber through the mobile terminal (s120); Analyzing, by the mobile switching center, the calling telephone number and the called telephone number (s130); Checking whether a call access restriction is set in the station number of the called telephone number (s140); If call access restriction is set in the called party number, checking whether the calling subscriber is a home subscriber (s150); If it is a home subscriber, checking whether the called party number restricts call access of the home subscriber (s160); If not the home subscriber, checking whether the called party number restricts roaming subscriber access to the call (s180); The call access restriction is not set in the called party number, the calling party is home and the called party number is not restricting the home subscriber's call access, or the calling party is roaming and the called party restricts the roaming subscriber's call access If not, performing normal call processing (s145); And notifying the mobile terminal that the station number is missing when the calling party is home and the called party number restricts call access of the home subscriber or the calling party is roaming and the called party number restricts roaming subscriber's call access. It is made to include (s170), the operation and effects thereof will be described in detail as follows.

In step S110, in order to limit the calling party's call to a particular called party number, the mobile switching center stores the calling party as a home subscriber and a roaming subscriber, and stores call access restriction for each called party number. Create and manage station information table.

In step s120, when the calling subscriber requests the call setup by transmitting his outgoing telephone number and a specific called phone number through his mobile terminal to the mobile switching center, the mobile switching center requests the analysis of the calling telephone number and the called telephone number. Receive. Then, in step S130, the mobile switching center analyzes the outgoing telephone number and the incoming telephone number received from the mobile terminal.

In step s140, the mobile switching center checks whether the call access information is set in the station number (called station number) of the called telephone number from the station number information table storing call access restriction information for the called station number.

If the call access information is not set in the corresponding destination station in the station information table, the destination station permits call access for all originating subscribers (home, roaming). Therefore, in step s145, the mobile switching center normally proceeds with call processing to connect a call between the calling mobile terminal and the called mobile terminal.

However, in step S140, if call access status information is set in the corresponding destination number in the station number information table, in step S150, the MS determines whether the originating subscriber of the mobile terminal is a home subscriber or a roaming subscriber.

If the calling subscriber is a home subscriber having the current mobile switching center as a home mobile switching center, in step s160 the mobile switching center checks from the station information table whether the called party number restricts access to the home subscriber's call.

If the calling subscriber is the home subscriber and the called party number does not restrict the home subscriber's call access, the mobile switching center normally proceeds with the call processing in step s145 to connect the call between the calling mobile terminal and the called mobile terminal.

However, if the calling subscriber is the home subscriber and the called party number restricts the home subscriber's call access, in step s170, the mobile switching center requests the calling terminal's mobile terminal to output an announcement that the station number is missing, and accesses the call. Notify the calling subscriber that it is being restricted.

In step S150, if the calling subscriber is not the home subscriber, the calling subscriber is a roaming subscriber having another mobile switching center as the home mobile switching center. In this case, in step S180, the MS determines whether the called party number restricts roaming subscriber's call access.

If the calling subscriber is a roaming subscriber and the called party number is not restricting the roaming subscriber's call access, the mobile switching center normally proceeds with call processing in step s145 to connect a call between the subscriber of the calling mobile terminal and the subscriber of the called mobile terminal. do.

However, if the calling subscriber is a roaming subscriber and the called party number restricts the roaming subscriber's call access, in step S170, the mobile switching center requests the calling terminal's mobile terminal to output an announcement that the station number is missing, so that the call access is made. Notify the calling subscriber that it is being restricted.

For example, in a mobile switching station that manages a station number table as shown in Table 1 above, when a mobile terminal serving as a home subscriber in the mobile switching station attempts to call the mobile switching station to a destination mobile terminal having a destination station number of 211, The mobile switching center restricts call access of the mobile terminal.

However, when a mobile terminal, which is a roaming subscriber, attempts to call the mobile switching station to a destination mobile terminal with a destination station number 211, the mobile switching station allows the mobile terminal to access the call.

The present invention can be variously modified and can take various forms and only the specific embodiments thereof are described in the detailed description of the invention. It is to be understood, however, that the present invention is not limited to the specific forms mentioned in the detailed description of the invention, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

In the present invention operating as described in detail above, the effects obtained by the representative ones of the disclosed inventions will be briefly described as follows.

The present invention is to provide a roaming service between different operators by restricting call access of the calling subscriber according to call access restriction information set in the called station number of the called telephone number and whether the calling subscriber is a home subscriber or a roaming subscriber. There is an effect that it is possible to restrict the call access of a particular originating subscriber.

Claims (10)

Storing, by the mobile switching center, the calling subscriber as a home or roaming subscriber; Setting call access restrictions for the home or roaming subscriber at a particular called party number, and storing the call access restriction information for the called party number by the mobile switching center; The mobile switching center receiving an outgoing telephone number and an incoming telephone number from the mobile terminal; Analyzing, by the mobile switching center, the outgoing telephone number and the called telephone number; Checking whether the call access restriction is set at a called station number of the called telephone number; If a call access restriction is set in the called station number, checking whether the calling subscriber of the mobile terminal is a home or roaming subscriber from an analysis result of the calling telephone number; If the calling subscriber is a home subscriber and the called party number restricts call access to the home subscriber, restricting the calling subscriber to the called party number; And If the originating subscriber is a roaming subscriber and the called party number restricts call access to the roaming subscriber, restricting call access to the calling party number for the calling party number; Method of limitation of mobile terminal. The communication system according to claim 1, further comprising the step of performing normal call processing for the calling subscriber if the call access restriction is not set as a result of checking whether the call access restriction is set in the called party number. Calling method of outgoing mobile terminal according to station number in. 3. The terminal according to claim 2, wherein if the call access restriction is set in the called party number, if the calling party is a home subscriber and the called party number is not restricting call access to the home subscriber, The method of claim 1, further comprising the step of performing a call processing. 5. The method of claim 4, wherein if the call access restriction is set in the called party number, if the calling party is a roaming subscriber and the called party number is not restricting call access to the roaming subscriber, The method of claim 1, further comprising the step of performing a call processing. The method of claim 1 or 4, wherein restricting call access comprises: And notifying the calling subscriber via the mobile terminal that the called station number is missing. Storing, by the mobile switching center, the calling subscriber as a home or roaming subscriber; Setting call access restrictions for the home or roaming subscriber at a particular called party number, and storing the call access restriction information for the called party number by the mobile switching center; The mobile switching center receiving an outgoing telephone number and an incoming telephone number from the mobile terminal; Analyzing, by the mobile switching center, the outgoing telephone number and the called telephone number; Checking whether the calling subscriber of the mobile terminal is a home or roaming subscriber from the analysis result of the calling telephone number; If the calling subscriber is a home subscriber and the called party number restricts call access to the home subscriber, restricting the calling subscriber to the called party number; And If the originating subscriber is a roaming subscriber and the called party number restricts call access to the roaming subscriber, restricting call access to the calling party number for the calling party number; Method of limitation of mobile terminal. 7. The method of claim 6, further comprising: performing normal call processing for the originating subscriber if the originating subscriber is a home subscriber and the called party number is not restricting call access to the home subscriber. Calling method of calling mobile terminal according to station number in system. 8. The method of claim 7, further comprising performing normal call processing for the originating subscriber if the originating subscriber is a roaming subscriber and the called party number is not restricting call access to the roaming subscriber. Calling method of calling mobile terminal according to station number in system. 9. The method of any one of claims 6 or 8, wherein restricting call access comprises: And notifying the calling subscriber via the mobile terminal that the called station number is missing. Determining whether the calling subscriber is a home subscriber or a roaming subscriber; Restricting call access to a particular called party number to each of the distinguished originating subscribers' home subscribers and roaming subscribers; And If the call is requested from the calling subscriber to the specific called party number, if the restriction condition is met, limiting call access to the specific called party number. .