KR20090010368A - Method for alarming call request and system thereof - Google Patents

Abstract

A method for alarming call request and a system thereof are provided to enable a call sender to transmit a message to a receiver's virtual number. An intelligent network switching system requests the location of the received terminal as the home location register, and delivers actual number deciding variable(S115). A home location register grasps the location information of the mobile station and the actual number(S117). If a receiver is capable of communicating, call is processed(S119). If a receiver is not capable of communicating, the home location register requests the call request alerting message electrical transmission as the short message service center(S121).

Description

Call request notification method and system for doing this {METHOD FOR ALARMING CALL REQUEST AND SYSTEM THEREOF}

The present invention relates to a call request notification method for a virtual number and a system for performing the same. Particularly, the present invention provides a method for providing a call request notification message in which a called number is written as a virtual number to a called terminal when a caller cannot make a call when the caller makes a call to a virtual number of a called party subscribed to a virtual number service. Relates to a device.

FreeNumber is an additional number that can be used in addition to the subscriber's actual number in a mobile station, and subscribers to the virtual number service can make and receive calls using their own real number or virtual number.

The call request notification service is a technique in which a caller subscribes to the called terminal in a short message when the called terminal becomes available for a call, after the called terminal becomes available. to be.

However, when the caller makes a call to the virtual number of the called party subscribed to the virtual number service and the terminal of the called party is unable to make a call, the call request notification service provided a call request notification message in which the called number was indicated by the actual number to the called terminal. That is, even when the caller makes a call to the called party's virtual number, the called party's terminal receives a call request notification message in which the called number is written as the actual number instead of the virtual number.

This is a problem that when a subscriber subscribed to the virtual number service receives a call request notification message, it is not possible to check whether the call request is requested by the virtual number or the real number. In addition, even when the caller is calling by the called party's virtual number, the short message received by the called party appears in the actual number of the caller, thereby reducing the reliability of the virtual number service.

The technical problem to be achieved by the present invention is to provide a call request notification method for a virtual number in which the called number is described as a virtual number on the called party's terminal when the caller is calling by the called party's virtual number, and a system for performing the same.

According to one aspect of the present invention, a method for providing a call request notification message is provided. The method for providing a call request notification message to the called party when the called party is unable to talk in the mobile communication network includes: (a) receiving a number determination variable, which is a variable indicating a real number of the called party and whether the caller is calling the called party's virtual number; (b) determining whether the caller is calling the called party's virtual number based on the number determination variable; (c) searching for the virtual number mapped to the actual number when it is determined in step (b) that the caller is calling the called party's virtual number; And (d) transmitting a call request notification message in which the called number is written as the searched virtual number to the called party.

According to another feature of the invention there is provided a system for providing a call request notification message. The system for providing a call request notification message to the called party when the called party is not available in the mobile communication network, the receiving unit receives a number determination variable which is a variable indicating whether the actual number of the called party and the caller's virtual number; A number determination unit that determines whether the caller is calling the called party's virtual number based on the number determination variable; A search unit for searching a virtual number mapped to the real number; A transmitter for transmitting a call request notification message including a called number; And when the caller determines that the caller is calling the called party's virtual number, the call request notification message is transmitted to the called party using the sender's virtual number searched by the searcher as the called number. It includes a control unit for controlling.

According to another aspect of the present invention, a method for providing a call request notification message is provided. The method for providing a call request notification message to a called party when the called party is unable to make a call in the mobile communication network includes: (a) determining whether the called party's called number is a virtual number of the called party; (b) if the called number is the called party's virtual number, retrieving the actual number of the called party and setting a number determination variable indicating whether the caller is calling the called party's virtual number; And (c) when it is determined that the caller is calling the called party's virtual number based on the number determination variable, when the called party's call is impossible, the call request notification message including the called number as the virtual number is sent to the called party. Transmitting.

According to another feature of the invention, a system for providing a call request notification message is provided. The system for providing a call request notification message to the called party when the called party is unable to make a call in the mobile communication network includes: an intelligent network exchanger for generating a number determination variable, which is a variable indicating whether the called party is a real number of the called party and the caller is a virtual number of the called party; A home location register for determining whether the called party can talk and outputting the actual number and the number determination variable when the call is unavailable; And a short message service for transmitting, to the called party, a call request notification message in which the called number is written as a virtual number mapped to the actual number, when it is determined that the calling party has sent the called party's virtual number based on the number determination variable. Includes the center.

When the caller makes a call to the called party's virtual number and the called party's terminal is unable to make a call, it is possible to secure the reliability of the virtual number service by providing a short message in which the called number is written as the virtual number to the called party's terminal.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. have.

In this specification, a mobile station (MS) is a terminal, a mobile terminal (MT), a subscriber station (SS), a portable subscriber station (PSS), a user equipment (User Equipment). It may also refer to a user equipment (UE), an access terminal (AT), and the like, and may include all or some functions of a mobile terminal, a subscriber station, a portable subscriber station, a user device, and the like.

In the present specification, a base station (BS) is an access point (AP), a radio access station (Radio Access Station, RAS), a Node B (Node B), a base transceiver station (Base Transceiver Station, BTS), MMR ( Mobile Multihop Relay) -BS and the like, and may include all or part of functions such as an access point, a radio access station, a Node B, a base transceiver station, and an MMR-BS.

Now, a method for providing a call request notification service for a virtual number and an apparatus for performing the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a network configuration for providing a call request notification service for a virtual number according to an embodiment of the present invention.

According to Figure 1, the configuration of the network for providing a call request notification service for the virtual number is a base station (BS) (200a, 200b), Mobile Switching Center (MSC) (300a, 300b), intelligent network switch ( Service Switching Point (SSP) (400), Intelligent Service Control Point (SCP) (500), Home Location Register (HLR) 600, and Short Message Service Center (SMSC) (700).

Here, the base stations 200a and 200b and the mobile telephone switching centers 300a and 300b are divided into calling party 200a and 300a and called party 200b and 300b, respectively. At this time, the brief description of each configuration is as follows.

The base station (BS) 200a, 200b is a network termination device that performs baseband signal processing, wired / wireless conversion, and transmission / reception of a wireless signal, and is directly coupled to the mobile stations 100a and 100b through a wireless channel. Although not shown in the figure, the base stations 200a and 200b are managed and controlled by a base station controller. The base station controller controls and manages one or more base stations, and performs call processing related traffic, signaling, and mobility management.

Mobile station (MS) (100a, 100b) is a terminal that the user can carry and communicate while moving, it is possible to send and receive voice calls and messages through the mobile communication network. In this case, the message includes a message provided through a short message service (SMS).

The mobile switching center (MSC) 300a, 300b, when a call processing is attempted from the mobile station 100a, determines whether a virtual number is based on the called number and performs general call processing or routing to an intelligent network accordingly. do. That is, if it is determined that the called number is not a virtual number, call setting is performed with the mobile switching center 300a that manages the called number attempted to process the call. However, if the called number is determined to be a virtual number, the intelligent network switch 400 forwards a call setup message (Initiate Address Message, IAM).

The intelligent network switch (SSP) 400 performs routing to the corresponding intelligent network according to the routing information of the call setup message (IAM) received from the mobile switching center 300a to the virtual number of the called number attempted to process the call. Receive the mapped real number. Then, the intelligent network switch 400 is a variable indicating whether the caller requested the call to the caller's virtual number (hereinafter, 'variable indicating whether the caller requested the call to the caller's virtual number' is referred to as 'number determination variable' And the location request of the called terminal including the number determination variable and the actual number of the called terminal to the home location register 600.

The intelligent network service controller (Service Control Point, SCP) 500 retrieves and extracts the actual number mapped to the received virtual number when routing for call processing is performed from the intelligent network switch 400. Then, the extracted real number is transferred to the intelligent network switch 400 again.

The home location register (HLR) 600 provides various information such as subscriber's origination, incoming status, additional service, and subscriber location information. The home location register 600 receives a location request including the actual number and the number determination variable of the called terminal from the intelligent network switch 400 to determine whether the called mobile station 100b can be called. If the call is possible, the call is transferred to the destination mobile station 100b. If the call is not possible, the call is sent to the short message service center 700. The call request notification message transmission request including the actual number and the number determination variable of the called terminal is performed. do.

Short Message Service Center (SMSC) 700 provides a call request notification message to the called terminal when the called terminal is not available, and the caller sends the called party's virtual number to the virtual number service. If the called party is unable to call, the called terminal provides a call request notification message in which the called number is written as a virtual number. That is, the caller provides information on the called number when the call request notification message is transmitted based on which number of the called party's virtual number and actual number.

In addition, the short message service center 700 receives the called party's actual number and number determination variable from the home position register 600 when the caller's call is unavailable, and analyzes the number determination variable. When the caller analyzes the number determination variable and sends the caller's virtual number, the virtual number is mapped to the actual number of the called party, and the call request notification message including the extracted virtual number is transmitted to the destination mobile station 100b. A more specific configuration thereof will be described with reference to FIG. 2.

2 is a block diagram showing a detailed configuration of a short message service center (SMSC) for providing a call request notification service for a virtual number according to an embodiment of the present invention.

According to FIG. 2, the short message service center (SMSC) 700 includes a receiver 710, a number determination unit 720, a search unit 730, a real number and virtual number mapping database 740, and a message generation unit 750. ), A transmitter 760 and a controller 770.

The receiver 710 receives the actual number and the number determination variable of the called party from the home location register 600, and transmits the actual number and the number determination variable to the number determination unit.

The number determination unit 720 analyzes the number determination variable and checks whether the caller has sent the actual number or the virtual number of the called party. If the caller has sent the actual number of the called party, the real number of the subscriber is transmitted to the message generator 750. On the other hand, when the caller sends the called party's virtual number, the caller 730 transmits the actual number of the called party.

The search unit 730 searches the real number and virtual number mapping database 740 based on the received real number of the called party, extracts the virtual number mapped to the real number, and extracts the extracted virtual number from the message generator 750. To pass.

The real number and virtual number mapping database 740 stores table information in which virtual numbers assigned according to the virtual number service are mapped to real numbers.

The message generator 750 receives a real number from the number determination unit 720 or a virtual number from the search unit 730 to generate a call request notification message including the real number or the virtual number.

The transmitter 760 transmits a call request notification message in which the actual or virtual number of the called terminal is written to the called mobile station 100b.

The controller 770 controls operations of the receiver 710, the number determination unit 720, the search unit 730, the message generator 750, and the transmitter 760.

3A and 3B illustrate a control flow for providing a call request notification service for a virtual number according to an embodiment of the present invention. 3A and 3B illustrate a control flow of providing a call request notification message for a virtual number when the caller makes a call to the virtual number of the called party subscribed to the virtual number service and the called party cannot make a call.

According to FIG. 3A, the originating mobile station 100a attempts to process a call using a virtual number to the calling mobile switching center 300a (S101). That is, it corresponds to call processing when the called number is a virtual number.

The calling party's mobile switching center 300a, which is requested to process the call, determines whether the called number is a virtual number using the called number attempted to process the call (S103). In this case, whether the called number is a virtual number may be determined in advance by specifying a station number band of the virtual number and determining that the called number corresponds to a virtual number when the called number corresponds to the corresponding virtual number station number band. For example, 010-6831-xxxx to 010-6837-xxxx are designated as bands using only virtual numbers. If the called number corresponds to the above band, it is determined as a virtual number. However, the determination of the virtual number may be performed by other methods.

In step S103, if it is determined that the virtual number is determined, the call setup message IAM is transmitted to the intelligent network switch 400 (S105). At this time, the called number is represented by a virtual number.

The intelligent network switch 400 receiving the call setup message (IAM) transmits an information analysis request message (Analized Information, ANAINFO) to the intelligent network service controller 500 of the corresponding intelligent network to query the actual number of the called party (S107). At this time, the called number is represented by a virtual number.

The intelligent network service controller 500 checks whether the received called number is registered, and if registered, retrieves the actual number mapped to the virtual number (S109) and adds it to the information analysis response message (anainfo) to add the intelligent network switch 400. (S111).

The intelligent network switch 400 receiving the actual number sets the number determination variable (S113). The number determination variable is a variable indicating that the called party has sent the caller's virtual number, and the intelligent network switch 400 may use a method of setting a specific number in a certain part of the information field delivered to the home location register 600. In the present embodiment, the number determination variable may have a value of '1' or '0', and when the caller is calling the called party's virtual number, it has '1', and the caller is calling the caller's actual number. It has a value of '0'. However, the setting of the number determination variable may be performed by another method indicating whether the caller is calling the called party's virtual number in the system.

At this time, the setting of the number determination variable may be performed simultaneously with transmitting the information analysis request message (ANAINFO) to the intelligent network service controller 500 (S107).

Thereafter, referring to FIG. 3B, the intelligent network switch 400 requests the location of the called terminal to the home location register 600, and transmits the actual number and number determination variable of the called terminal (S115). At this time, the number determination variable is set to '1' to indicate that the caller is calling the called party's virtual number.

The home location register 600, which has received the actual number and the number determination variable of the called terminal, grasps the location information of the called mobile station and determines whether the call is possible (S117). If the called party is available, call processing is performed (S119).

If the called party is not available, the home location register 600 requests the call request notification message to the short message service center 700 (S121). At this time, the home location register 600 transmits the actual number and the number determination variable of the called party when the call request notification message transmission request.

The short message service center 700, which is requested to transmit the call request notification message, analyzes the number determination variable (S123). If the number determination variable is set to '1' and the caller requests a call to the called party's virtual number, the subscriber's virtual number mapped to the received real number is searched (S123).

After retrieving the actual number mapped to the virtual number, the short message service center 700 determines whether the destination mobile station can make a call (S127). Thereafter, when the called mobile station becomes available, the short message service center 700 delivers the call request notification message including the called number as the called party's virtual number to the called mobile station 100b (S129).

According to the present embodiment, when the caller makes a call to the called party's virtual number and the called party is unable to make a call, the call forwarding notification message is recorded in which the called number is written as the called party's virtual number. In this way, when the called mobile station 100b receives the call request notification message, the called mobile station 100b may check whether the caller requested the call to the called party's actual number or the call to the virtual number. The process performed by the short message service center 700 is shown in detail in FIG. 4.

4 is a diagram illustrating a control flow of a short message service center 700 for providing a call request notification service for a virtual number according to an embodiment of the present invention.

The short message service center 700 receives a call request notification message transmission request including the actual number of the called party, the number determination variable, and the location information from the home location register 600 (S301).

Then, the number determination unit 720 analyzes the number determination variable to determine whether the caller requests the call with the virtual number of the called party (S303). When the caller requests a call to the actual number of the called party, the message generator 750 generates a call request message in which the called number is written as the actual number (S305).

When the caller requests a call to the called party's virtual number, the caller transmits the called party's actual number to the search unit 730 (S307). The search unit 730 searches for the virtual number mapped to the actual number of the called party in the real number and virtual number mapping database 740 (S309).

The message generator 750 generates a call request message in which the called number is written as the called party's virtual number (S311).

Thereafter, the short message service center 700 determines whether the destination mobile station 100b can make a call (S313). When the call of the called mobile station 100b is possible, the short message service center 700 transmits the call request message generated to the called mobile station 100b (S315).

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a diagram illustrating a network configuration for providing a call request notification service for a virtual number according to an embodiment of the present invention.

2 is a block diagram showing a detailed configuration of a short message service center (SMSC) for providing a call request notification service for a virtual number according to an embodiment of the present invention.

3A and 3B illustrate a control flow for providing a call request notification service for a virtual number according to an embodiment of the present invention.

4 is a view showing a control flow of a short message service center (SMSC) for providing a call request notification service for a virtual number according to an embodiment of the present invention.

Claims (13)

In the method of providing a call request notification message to the called party when the called party is not available in the mobile communication network, (a) receiving a number determination variable which is a variable indicating whether the called party is a real number and whether the caller is calling the called party's virtual number; (b) determining whether the caller is calling the called party's virtual number based on the number determination variable; (c) searching for the virtual number mapped to the actual number when it is determined in step (b) that the caller is calling the called party's virtual number; And (d) transmitting a call request notification message including a called number written in the searched virtual number to the called party; Call request notification method. The method of claim 1, Step (c) is, Call request notification method for searching using a database that stores the virtual number mapped to the actual number of the subscriber. The method of claim 2, In step (d), Characterized in that the called party's terminal is performed when the call is available Call request notification method. In the system for providing a call request notification message to the called party when the called party is not available in the mobile communication network, Receiving unit for receiving the number determination variable which is a variable indicating whether the actual number of the called party and the caller's virtual number; A number determination unit that determines whether the caller is calling the called party's virtual number based on the number determination variable; A search unit for searching a virtual number mapped to the real number; A transmitter for transmitting a call request notification message including a called number; And If it is determined by the number determination unit that the caller is calling the called party's virtual number, the call request notification message is transmitted to the called party through the transmitter using the virtual number searched by the searching unit as the called number. Containing a control unit Call request notification system. The method of claim 4, wherein A database storing a virtual number mapped to a real number of a subscriber; And The control unit further includes a message generation unit generating a call request notification message in which a called number is written in the real number or the searched virtual number and providing the received number to the transmitter. Call request notification system. The method of claim 5, The transmitter may transmit a call request notification message when the called terminal is available for a call. Call request notification system. A method for providing a call request notification message to a called party when a called party is not available in a mobile communication network, (a) determining whether the called number of the received outgoing call is the called party's virtual number; (b) if the called number is the called party's virtual number, retrieving the actual number of the called party and setting a number determination variable indicating whether the caller is calling the called party's virtual number; And (c) if it is determined that the caller is calling the called party's virtual number based on the number determination variable, when the called party is unable to make a call, sending a call request notification message including the called number as the virtual number to the called party; Comprising the steps of Call request notification method. The method of claim 7, wherein Step (c) is, (i) determining whether the caller is calling the called party's virtual number based on the number determination variable; (ii) retrieving a virtual number mapped to the actual number if it is determined in step (i) that the caller is calling the called party's virtual number; And (iii) generating a call request notification message in which the called number is written as the searched virtual number and transmitting the same to the called party; Call request notification method. The method of claim 8, In step (b), the actual number search of the called party is Characterized in that is performed using an intelligent network Call request notification method. The method of claim 9, In step (a), Characterized by the station number band of the called number Call request notification method. A system for providing a call request notification message to a called party when a called party is not available in a mobile communication network, An intelligent network switch for generating a number determination variable which is a variable indicating whether the called party is called and the called party is called by the called party's virtual number; A home location register for determining whether the called party can talk and outputting the actual number and the number determination variable when the call is unavailable; And A short message service center for transmitting a call request notification message in which a called number is written as a virtual number mapped to the actual number, when it is determined that the caller has sent the called party's virtual number based on the number determination variable. Containing Call request notification system. The method of claim 11, The short message service center A receiving unit which receives a number determination variable which is a variable indicating whether the called party's actual number and the caller's virtual number have been sent; A number determination unit that determines whether the caller is calling the called party's virtual number based on the number determination variable; A search unit for searching a virtual number mapped to the real number; A transmitter for transmitting a call request notification message in which a called number is written as the searched virtual number; And If it is determined by the number determination unit that the caller is calling the called party's virtual number, the call request notification message is transmitted to the called party through the transmitter using the virtual number searched by the searching unit as the called number. Containing a control unit Call request notification system. The method of claim 12, The short message service center, Call request notification system further comprises a database that stores the virtual number mapped to the actual number of the subscriber.

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