KR100881422B1 - Method for processing call using virtual number in all range of exchange number and apparatus thereof - Google Patents

Abstract

The present invention relates to a method and apparatus for call processing using virtual numbers of all station bands. In this method, the home location register routes the called number to the intelligent network if the called subscriber is a virtual number service subscriber. The intelligent network extracts the actual number corresponding to the routed called number and performs the incoming processing to the called subscriber corresponding to the actual number. According to the present invention, virtual numbers can be assigned to all station number bands, thereby securing a larger number of subscribers. In addition, by assigning a virtual number to all the station number bands, whether or not the virtual number is recognized can be obtained. Thus, trust in the virtual number service can be improved to absorb more subscribers.

Virtual number, all station band, real number, intelligent network, intelligent network service exchange, intelligent network service controller

Description

Method for processing call using virtual number in all station bands and its device {METHOD FOR PROCESSING CALL USING VIRTUAL NUMBER IN ALL RANGE OF EXCHANGE NUMBER AND APPARATUS THEREOF}

1 is a flowchart of a method for processing a call using a conventional virtual number.

2 is a schematic diagram of a system to which a method for processing a call using virtual numbers in all station numbers according to an embodiment of the present invention is applied.

3 is a flowchart of a method for call processing using virtual numbers in all station bands according to an embodiment of the present invention.

The present invention relates to a method and apparatus for performing voice call processing using a virtual number, and more particularly, to a call processing method and apparatus for providing virtual numbers in all station number bands.

Recently, as the use of mobile communication terminals has rapidly increased, not only voice calls but also various additional services have been developed to provide users with various lives through mobile communication terminals.

Among these additional services, there is an additional service for providing a virtual number to one mobile communication terminal so that incoming calls through the virtual number are possible so that the actual number of the called party is not exposed.

The conventional supplementary service using a virtual number is a service that provides a service subscriber with one additional virtual number in addition to the actual number, but the virtual number is provided only in a limited station number band.

Hereinafter, a call processing method using a conventional virtual number will be described with reference to FIG. 1.

First, it is assumed that a specific called subscriber is subscribed to a service using a conventional virtual number, and has been given a virtual number (VN) in addition to a real number (RN) to his mobile communication terminal. .

When the calling subscriber whose location is registered in the calling exchange 10 attempts an outgoing call to the virtual number of a specific called subscriber whose virtual number is assigned to his calling terminal, the calling exchange 10 corresponds to the specific called subscriber. If the incoming number is not a virtual number, the general incoming call processing is performed. If the called number is a virtual number, an intelligent network service switch (SSP, 20) is used to know the actual number corresponding to the virtual number. In step S10, an initial address message (IAM) including a virtual number (VN) is transmitted to a called number field.

Here, the reason that the source exchange 10 can determine whether the called number is a virtual number is not a conventional virtual number is assigned to all station bands, but a station number band assigned to a certain band, for example, a virtual number band. Since it is specified as, it can be determined whether or not the virtual number is only in the station number band of the called number.

Next, the intelligent network service exchanger 20 receives an intelligent network service control point (SCP, 30) and a message (S20, S30) to know the actual number (RN) corresponding to the virtual number transmitted from the originating exchange 10. Send and receive to obtain the actual number (RN) for the virtual number (VN) (S20, S30).

Thereafter, the intelligent network service exchanger 20 exchanges a message with a home location register (HLR) 40 to route to the specific called party corresponding to the real number (RN) (S40, S50). Incoming processing for the called terminal of the specific called subscriber is performed (S60).

As described above, in the conventional call processing method using the virtual number, the originating exchange 10 must transmit the call to the intelligent network, that is, the intelligent network exchange 20, in order to change the virtual number into the actual number. Therefore, if a virtual number is assigned to all the station number bands, it is not known whether the called number is a virtual number. Therefore, since the originating exchange 10 must transmit all the called numbers to the intelligent network, the load of the intelligent network increases. do. Therefore, in the conventional call connection processing method using a virtual number, there is a problem in that the virtual number should be limited to a specific station number band in consideration of such a load. In addition, by assigning a virtual number only to a specific station number band as described above, the caller as well as other subscribers can know whether the number is a virtual number so that the meaning of receiving the virtual number fades. Confidence in the service can be reduced.

In order to solve such a problem, the present invention provides a method and apparatus for processing a call using virtual numbers for all station number bands without the burden of increasing the load of an intelligent network or a mobile communication system.

In order to achieve this technical problem, a call processing method according to a feature of the present invention,

a) determining, by the home location register, whether the subscriber of the called number included in the outgoing call received from the calling exchange is a subscriber of the virtual number service; b) if it is determined that the subscriber is a subscriber of the virtual number service, the home location register obtaining an actual number corresponding to the called number through the intelligent network; And c) delivering routing information, which is routable to the called terminal of the actual number, obtained by the home location register to the intelligent network, to perform an incoming call corresponding to the called number.

Call processing apparatus according to another feature of the present invention,

A home location register having subscriber information and service information subscribed to and providing routing information to an intelligent network when a subscriber of the called number is a subscriber of a virtual number service when a request for called information on a called number is received; Routing service provided by the home location register providing a mobile communication service for a mobile communication terminal through a wireless access network, and when the subscriber of the called number included in the outgoing call is determined to be a subscriber of the virtual number service by the home location register. A mobile communication switch which transmits an outgoing call including the called number to the intelligent network using information; And providing an intelligent network service, and when an outgoing call including a called number is transmitted from the mobile communication exchange, extracting a real number corresponding to the called number, and routing information about the extracted real number from the home location register. An intelligent network service unit for receiving and processing incoming calls to a subscriber corresponding to the actual number is provided.

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.

Herein, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

In addition, the term module described herein refers to a unit for processing a specific function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

2 is a schematic diagram of a system to which a method for processing a call using virtual numbers in all station numbers according to an embodiment of the present invention is applied.

As shown in FIG. 2, a system to which a method for processing a call using virtual numbers in all station bands according to an embodiment of the present invention is applied includes a wireless access network 100, a mobile communication switch 200, and a home location register ( HLR (300), intelligent network service switch (SSP, 400) and intelligent network service controller (SCP, 500).

The wireless access network 100 performs a wireless communication with the mobile communication terminal 600 to provide a mobile communication service for the mobile communication terminal 600 through the mobile communication exchanger 200. For example, the base station may include a base station subsystem (BTS), a base station controller (BSC) or a base station transmitter (RTS), a radio network controller (RNC), and the like.

The mobile communication switch 200 provides various data communication services including a voice call to the mobile communication terminal 600, and provides mobility management, location registration / management, authentication, handover, Roaming, etc. In particular, in the exemplary embodiment of the present invention, the mobile communication switch 200 determines that the subscriber of the called number included in the outgoing call received from the mobile terminal 600 is the virtual number service subscriber by the home location register 300. In this case, the intelligent network service switcher 400 transmits the call together with the virtual number to enable the call to the virtual number.

The home location register 300 is a database that stores information of a subscriber, and the information of the subscriber includes the type of service set by the subscriber, for example, whether or not the user subscribes to a virtual number service according to an embodiment of the present invention. Store and manage information. In particular, in the embodiment of the present invention, the home location register 300, if there is a request for incoming information for routing from the mobile communication switch 200 to the called party corresponding to the called number, the called party corresponds to the embodiment of the present invention. In the case of the subscriber of the virtual number service according to the present invention, the caller recognizes that the called number is the virtual number and transmits routing information (RoutN) that can be transmitted to the intelligent network service switcher 400 to the mobile communication switch 200. Accordingly, the mobile communication switch 200 receives the routing information RoutN transmitted from the home location register 300 and transmits an incoming call corresponding to the virtual number to the intelligent network service switch 200.

The intelligent network service exchanger 400 is an exchange system that is connected between the mobile communication exchanger 200 and the intelligent network service controller 500 to connect the service user and the intelligent network. The intelligent network service controller recognizes the intelligent network service among calls for service use. It is in charge of the call processing function to notify 500. In an embodiment of the present invention, the intelligent network service switcher 400 transmits / receives a message with the intelligent network service controller 500 to a real number RN corresponding to a virtual number VN included in a call transmitted from the mobile communication switch 200. It acquires through and performs an incoming call to the called party corresponding to the actual number (RN).

The intelligent network service controller 500 performs a core function of providing an intelligent network service, receives a signal from the intelligent network service exchanger 400, analyzes it, and performs an operation corresponding to the intelligent network service. Since the database stores a virtual number (VN) assigned to a real number (RN) for each subscriber that has subscribed to the additional service, the real number corresponding to the virtual number transferred from the intelligent network service exchange 400 is stored. Extract it and pass it to the intelligent network service exchange 400. Accordingly, the intelligent network service exchanger 400 can perform the incoming call processing for the called subscriber using the actual number corresponding to the virtual number VN transmitted from the intelligent network service controller 500.

Hereinafter, a method of call processing using virtual numbers in all station bands according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

Here, for convenience of description, the mobile communication terminal 600 of the calling subscriber who attempts to make an outgoing call using the virtual number as the called number is called the calling terminal 600, and also through the wireless access network 100, the calling terminal ( The mobile communication exchange 200 receiving the outgoing call from 600 will be referred to as the originating exchange 200.

In addition, the intelligent network service controller 500 is provided with a database that stores the virtual number (VN) assigned to the actual number (RN) for each subscriber subscribed to the additional service that can be given virtual numbers for all the station number band in advance. It is assumed that there is.

First, when an outgoing call with a virtual number of a specific called party assigned a virtual number as a called number is received from a calling terminal of a calling subscriber whose location is registered in the calling exchange 200, the calling side switch 200 is conventionally connected. Rather than determining that the called number is a virtual number, a call request information (Location Request) for querying the location information of the called subscriber is sent to the home location register 300 to route to the called subscriber corresponding to the called number (S100). ). At this time, the incoming information request signal transmitted from the originating exchange 200 to the home location register 300 includes the called number, and the called number actually corresponds to the virtual number VN.

Next, the home location register 300 assigns virtual numbers to all station bands by the called subscriber corresponding to the called number included in the incoming information request signal transmitted from the calling exchange 200. Since it is determined whether the subscriber is a virtual number service subscriber, and the called party number is a virtual number, so that the called party is determined to be a virtual number service subscriber, the home location register 300 is an intelligent network service exchanger to know the actual number corresponding to the called number. A routing information (RoutN) that can be routed to a service switching point (SSP) 20 and a called number, that is, a location request return result including a virtual number, is transmitted to the originating exchange 200 (S110). At this time, the routing information and the called number are included in the called Temporary Local Directory Number (TLDN) included in the called information response signal. Meanwhile, if it is determined that the called subscriber is not the virtual number service subscriber, the home location registrar 300 performs general incoming call processing to deliver only the routing information to the called side exchange in which the called subscriber is located. Since this general incoming call processing is well known, the detailed description is omitted here.

Therefore, the originating exchange 200 looks at the routing information RoutN included in the incoming information response signal transmitted from the home location register 300 and routes the routing information RoutN for the intelligent network service to know the actual number corresponding to the virtual number. In step S120, an initial address message (IAM) including a called number, that is, a virtual number (VN), is transmitted to the intelligent network service exchange 300 corresponding to).

Subsequently, the intelligent network service switcher 400 requests an actual number to the intelligent network service controller 500 to know the actual number RN corresponding to the virtual number VN transferred from the originating switch 200. Information) is sent (S130). At this time, the instruction requesting the actual number RN includes the called number, that is, the virtual number VN.

Next, the intelligent network service controller 500 extracts and extracts an actual number (RN) corresponding to the virtual number included in the command (Analized Information) transmitted from the intelligent network service exchange 400 through a database provided therein. A response command (analized information return result) including the actual number RN is transmitted to the intelligent network service switcher 400 (S140).

Thereafter, the intelligent network service switcher (400) routes the called party corresponding to the called number to the called party by using the actual number (RN) included in the answer information (analized information return result) transmitted from the intelligent network service controller 500 as the called party number. In order to transmit the location information request signal (Location Request) for querying the location information of the called subscriber to the home location register 300 (S150). At this time, the incoming information request signal transmitted from the intelligent network service exchanger 400 to the home location register 300 includes a called number, and the called number actually corresponds to the actual number (RN) of the called terminal of the called subscriber. That is, the fact that the actual number is included in the step S150 is different from that in which the virtual number VN is included in the incoming information request signal in the step S100.

Next, the home location register 300 includes a called party information response signal including a called party identification number (TLDN) including routing information that can be routed to the called party's called terminal corresponding to the actual number (RN) included in the called party information request signal. (location request Return Result) is transmitted to the intelligent network service switcher 400 (S160).

Accordingly, the intelligent network service exchanger 400 may perform the incoming call processing to the called terminal of the called subscriber corresponding to the actual number through the called identification number (TLDN) included in the incoming information response signal transmitted from the home location register 300. It may be (S170).

As described above, the originating exchange 200 transmits the outgoing call to the intelligent network service exchange 400 by the home location register 300 only when the called subscriber is the virtual number service subscriber. Even if the incoming call processing for the number is performed, the load increase in the source exchanger 200 or the intelligent network component, that is, the intelligent network service exchanger 400 and the intelligent network service controller 500 is not large.

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.

According to the present invention, virtual numbers can be assigned to all station number bands, thereby securing a larger number of subscribers.

In addition, by assigning a virtual number to all the station number bands, whether or not the virtual number is recognized can be obtained.

Thus, trust in the virtual number service can be improved to absorb more subscribers.

Claims (10)

In the call processing method using a virtual number, a) determining, by the home location register, whether the subscriber of the called number included in the outgoing call received from the calling exchange is a subscriber of the virtual number service; b) if it is determined that the subscriber is a subscriber of the virtual number service, the home location register obtaining an actual number corresponding to the called number through the intelligent network; And c) transmitting routing information, which is routable to the called terminal of the actual number, acquired by the home location register to the intelligent network to perform an incoming call corresponding to the called number; Call processing method comprising a. The method of claim 1, Step a) is a1) forwarding the called number to a home location registrar where the originating exchange receiving the outgoing call stores subscriber information; a2) determining, by the home location register, whether the subscriber of the called number is a subscriber of the virtual number service; And a3) when it is determined in step a2) that the subscriber of the called number is a subscriber of the virtual number service, the home location registrar delivers routing information to the originating exchange to the intelligent network. Call processing method comprising a. The method of claim 2, B), b1) transmitting, by the calling exchange, the called number to the intelligent network through routing information to the intelligent network received in step a3); And b2) the home location register obtaining an actual number corresponding to the called number delivered from the originating exchange through the intelligent network; Call processing method comprising a. The method of claim 3, C), c1) the home location register obtaining routing information routable to the called terminal of the actual number; c2) the home location registrar delivering routing information to the intelligent network for routing to the called terminal of the actual number; And c3) performing, by the intelligent network, an incoming process to the called terminal through routing information routable to the called terminal of the actual number; Call processing method comprising a. The method of claim 3, Step b2), b21) receiving, by the intelligent network service exchange performing call forwarding for the intelligent network service, a called number delivered from the originating exchange; b22) transmitting, by the intelligent network service exchange, the received called number to an intelligent network service controller providing an intelligent network service; b23) extracting, by the intelligent network service controller, an actual number corresponding to the received called number and delivering the actual number to the intelligent network service switch; And b24) forwarding, by the intelligent network service exchange, the extracted real number to the home location register; Call processing method comprising a. The method of claim 5, The intelligent network service controller includes a database which stores in advance a virtual number assigned to the actual number of the called terminal of the subscriber, and extracts the actual number corresponding to the called number transmitted from the intelligent network service exchange through the database. Call processing method characterized in that the transfer to the intelligent network service exchange. A home location register having subscriber information and service information subscribed to and providing routing information to an intelligent network when a subscriber of the called number is a subscriber of a virtual number service when a request for called information on a called number is received; Routing service provided by the home location register providing a mobile communication service for a mobile communication terminal through a wireless access network, and when the subscriber of the called number included in the outgoing call is determined to be a subscriber of the virtual number service by the home location register. A mobile communication switch which transmits an outgoing call including the called number to the intelligent network using information; And Provides an intelligent network service, and when an outgoing call including a called number is transmitted from the mobile communication exchange, extracts a real number corresponding to the called number and provides routing information about the extracted real number from the home location register Intelligent network service unit for receiving and processing incoming calls to the subscriber corresponding to the actual number Call processing apparatus comprising a. The method of claim 7, wherein The intelligent network service unit, An intelligent network service controller which stores virtual numbers assigned to actual numbers of subscribers subscribing to a virtual number service, and extracts and provides actual numbers corresponding to forwarded destination numbers; And Connected to the mobile communication switch and the intelligent network service controller to transmit a called number transmitted from the mobile communication switch to the intelligent network service controller, and receives a real number corresponding to the transferred called number from the intelligent network service controller; Intelligent network service exchange that performs incoming call processing corresponding to the number Call processing apparatus comprising a. The method of claim 8, And the home location register transfers routing information to the intelligent network service exchange together with the called number to the mobile communication switch when the subscriber of the called number is the subscriber of the virtual number service. The method of claim 8, The intelligent network service exchanger receives routing information corresponding to the actual number transmitted from the intelligent network service controller from the home location register and performs an incoming call processing to the called terminal of the subscriber corresponding to the actual number. .

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