KR101009831B1 - System and method for registering video phone user - Google Patents

Abstract

An information registration unit for registering and processing user information of a calling terminal and user information of a called terminal associated with a video call request generated in the calling terminal in a database, and the calling terminal made according to a connection response of the called terminal to the video call request. A video telephone user registration system and method are disclosed that includes an information deletion unit for deleting each registered user information from the database when a termination request is generated for a video telephone between the terminal and the called terminal.

Video call, user registration, call session control function (CSCF)

Description

SYSTEM AND METHOD FOR REGISTERING VIDEO PHONE USER}

Embodiments of the present invention relate to a videophone user registration system and method that allows only subscribers who actually use a videophone to perform user registration, thereby eliminating wastage of system resources and increasing efficiency to build an economic system. .

With the development of communication technology, mobile communication terminals can provide various additional functions such as wireless internet, email, and DMB, in addition to basic functions such as voice call and message transmission and reception.

In addition, the recent mobile communication terminal has been able to provide a video phone service that allows you to talk while watching the appearance of the other party.

In order to send and receive video calls in a mobile communication terminal, a mobile communication terminal must be registered in a CSCF that manages video calls under an IMS structure.

Here, IMS (IP Multimedia Subsystem) is a core network infrastructure to provide various multimedia services such as video call service based on IP.

In addition, CFCS (Call Session Control Function) is a system that performs SIP-based Call Control and Session Handing functions on a 3G network, and can provide various multimedia services such as video call service.

Where CSCF is P-CSCF (Proxy CSCF), S-CSCF (Serving CSCF), I-CSCF (Interrogation CSCF), Breakout Gateway Control Function (BGCF), Registrar (VLR), and CFS-AS (AS) It consists of (Call Feature Serving Application Server). In addition, the function has a function of interworking with an access node (AN) (eg, EvDO, WiFi), a home subscriber server (HSS), an application server (AS), a signal network, and the like.

1 is a diagram illustrating the functions of the CSCF and the functions of the main interworking system.

As shown in FIG. 1, the CSCF performs SIP call processing, session management, S-CSCF performing number translation, I-CSCF performing HSS lookup function, another IMS network (authorized IP) contact point, and IP security function. IM-SSF that performs IBCF (Interconnection Border Control Function), Legacy SCP interworking, Sigtran (Signaling Transport) conversion function, BGCF that performs Legacy SSP (VTGW, MGCF) interworking function, P network performing overload control May include -CSCF.

In addition, the main interworking systems include Registrar (VLR), which plays a role of subscriber management, and IP Multimedia Application Server (IM-AS), which performs video telephone call processing.

On the other hand, the current video call is registered with the CSCF when the terminal is powered on or enters the EV_DO network. In addition, the information registered once is not deleted and is always maintained.

As a result, it occupies the resources of the system related to the existing video call, and even the subscribers who do not actually use the system resources use the system resources, thus causing a waste of investment.

Accordingly, an embodiment of the present invention is to propose a method for constructing an economic system by eliminating waste of system resources and increasing efficiency by allowing only subscribers who actually use a video phone to perform user registration.

An embodiment of the present invention is to provide a video telephone user registration system and method that allows only subscribers who use actual video telephones to perform user registration, thereby eliminating waste of system resources and improving efficiency and building an economical system. It is done.

According to an embodiment of the present invention, a video telephone user registration system includes: an information register configured to register user information of a calling terminal and user information of a called terminal associated with a video call request generated at the calling terminal in a database; And an information deletion unit for deleting the registered user information from the database when a termination request is generated for the video call between the calling terminal and the called terminal made according to the connection response of the called terminal to the request. .

In addition, the video phone user registration method according to an embodiment of the present invention, as the video call request occurs, the step of registering each user information of the calling terminal and the called terminal associated with the video call request in the database, and And deleting the registered user information from the database when a termination request occurs for the video call between the calling terminal and the called terminal, which is made according to the connection response of the called terminal to the video call request. do.

According to an embodiment of the present invention, only subscribers who use actual videophones can perform user registration, thereby eliminating waste of system resources and increasing efficiency to build an economic system.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. Like reference numerals in the drawings denote like elements.

2 is a diagram illustrating a network connection relationship between a calling terminal, a called terminal, and a CSCF.

The videophone user registration system according to an embodiment of the present invention may be implemented inside or outside the CSCF 200 shown in FIG. 2. However, in the present specification, for the convenience of description, the description will be limited to those implemented in the CSCF 200.

When a video call request is generated as an attempt is made to send a video call from the calling terminal, the CSCF 200 may perform user registration with respect to the calling terminal.

In addition, when the video call request is delivered to the called terminal as the incoming call is attempted by the called terminal, the CSCF 200 may perform user registration for the called terminal.

At this time, when a termination request is generated (ie, when the video call is terminated) for the video call between the calling terminal and the called terminal made according to the connection response of the called terminal to the video call request, the CSCF 200 sends the call. User registration may be released from the terminal and the called terminal.

3 is a diagram showing the configuration of a videophone user registration system according to an embodiment of the present invention.

The videophone user registration system 300 according to an embodiment of the present invention may include an information registration unit 310, a database 320, an information deletion unit 330, and a terminal identification unit 340.

The information registration unit 310 functions to register user information of the calling terminal and user information of the called terminal associated with the video call request generated in the calling terminal in the database 320.

For example, the information registration unit 310 checks the telephone number (CID) of the calling terminal or the called terminal from the video call request, and each user information of the calling terminal or the called terminal from the customer management server (not shown) through the telephone number. May be identified and registered in the database 320.

The user information of the calling terminal may include a phone number of the calling terminal, a terminal type, a power state, or a video call rejection target. In addition, the user information of the called terminal may include a phone number of the called terminal, the terminal type, the power state, or a video call rejection target.

For example, the terminal checking unit 340 may check whether the calling terminal and the called terminal are video call capable terminals. As a result of the check, when the calling terminal and the called terminal are video call capable terminals, the information registration unit 310 may process the user information of the calling terminal and the called terminal.

For example, the terminal identification unit 340 may check the terminal type of each terminal from the identified user information, and may determine whether the calling terminal and the called terminal are terminals including a video call function through the terminal type.

When the calling terminal and the called terminal are identified as a terminal including a video call function, the information registering unit 310 may perform registration of the respective user information to the database 320.

At this time, the registration time of each user information of the calling terminal for sending the video call and the called terminal for receiving the video call may be different.

That is, the information registration unit 310 may register the user information of the calling terminal in the database 320 at the time when the video call request occurs.

In addition, the information registration unit 310 may register the user information of the called terminal in the database 320 at the time when the video call request is delivered to the called terminal.

In other words, the information registration unit 310 may register the user information of the calling terminal to the database 320 when the video call is attempted, and the database 320 about the user information of the called terminal when the video call is attempted. The registration of the furnace can be performed.

In addition, the information registration unit 310 registers each user information in the database 320 without distinguishing between the calling terminal and the called terminal or registers each user information in the database 320 by dividing each user information by the calling terminal and the called terminal. Can be processed.

The information deleting unit 330, when a termination request occurs for the video call between the calling terminal and the called terminal, which is made according to the connection response of the called terminal to the video call request, the registered user information of the registered information. It functions to delete from the database 320.

That is, the information deleting unit 330 may delete the user information of the calling terminal and the called terminal registered in the database 320 in association with the request for ending the video call from the calling terminal or the called terminal.

Alternatively, in response to the video call request delivered to the called terminal, if a rejection response is generated from the called terminal or if there is no connection response, the video call cannot be made between the calling terminal and the called terminal. ) May delete the user information of the calling terminal and the called terminal registered in the database 320.

For example, the terminal identification unit 340 may determine whether the called terminal is in a power off state. As a result of the check, when the power is off, the information deleting unit 330 may delete the respective user information from the database 320.

For example, the terminal checking unit 340 may determine the power state of the called terminal through the presence or absence of a signal periodically transmitted and received between the called terminal and the base station. That is, the terminal checking unit 340 checks the terminating terminal in the power-off state when there is no signal periodically transmitted and received between the terminating terminal and the base station, and powers on the terminating terminal if there is a signal periodically transmitted and received between the terminating terminal and the base station. You can check the status.

When the called terminal is in the power-off state, since a video call is not possible between the calling terminal and the called terminal, the information deleting unit 330 may delete each user information of the calling terminal and the called terminal registered in the database 320.

As another example, the terminal checking unit 340 may determine whether the calling terminal is included in the video call rejection target of the called terminal. As a result of the check, when included in the video call rejection object, the information deleting unit 330 may delete the respective user information from the database 320.

For example, the terminal checking unit 340 may identify the video call rejection target set by the called terminal from the user information of the called terminal, and check whether the telephone number (CID) of the calling terminal is registered in the video call rejection target.

When the telephone number (CID) of the calling terminal is registered in the video call rejection target, video calling is impossible between the calling terminal and the called terminal, so that the information deleting unit 330 may be configured to include the calling terminal and the called terminal registered in the database 320. Each user information can be deleted.

As another example, before the video call request is delivered to the called terminal (that is, before the incoming call is attempted to the called terminal), if the cancellation of the video call request is requested from the calling terminal, the information deleting unit 330 is a database. The user information of the calling terminal registered at 320 may be deleted.

Therefore, according to an embodiment of the present invention, since information (ie, user information) about a subscriber who actually performs a video call is registered in the database 320, system resources can be efficiently used, thereby facilitating the construction of an economic system. do.

4 is a flowchart illustrating a procedure of a video telephone user registration method according to an embodiment of the present invention.

The videophone user registration method according to an embodiment of the present invention may be implemented by the videophone user registration system 300 according to an embodiment of the present invention. In addition, in the following description of FIG. 4, FIG. 4 will be described with reference to FIG. 3.

In step 410, the videophone user registration system 300 registers the user information of the calling terminal in the database 320 in association with the generation of the videophone request.

That is, the information registration unit 310 may register the user information of the calling terminal in the database 320 at the time when the video call request occurs. In other words, the information registration unit 310 may register the user information of the calling terminal to the database 320 when attempting to make a video call.

The user information of the calling terminal may include a phone number of the calling terminal, a terminal type, a power state, or a video call rejection target.

For example, the terminal identification unit 340 may check the terminal type of the calling terminal from the user information of the calling terminal, and may determine whether the calling terminal includes a video call function. When the calling terminal is identified as a terminal including a video call function, the information registering unit 310 may perform user registration with respect to the calling terminal.

In step 420, the videophone user registration system 300 interoperates with the videophone request to the called terminal, and registers the user information of the called terminal in the database 320.

That is, the information registration unit 310 may register the user information of the called terminal in the database 320 at the time when the video call request is delivered to the called terminal. In other words, the information registration unit 310 may register the user information of the called terminal to the database 320 when the video call is attempted.

The user information of the called terminal may include a phone number of the called terminal, a terminal type, a power state, or a video call rejection target.

For example, the terminal checking unit 340 may check the type of the terminal of the called terminal from the user information of the called terminal, and determine whether the video terminal function is included in the called terminal. When the called terminal is identified as a terminal including a video call function, the information registration unit 310 may perform user registration with respect to the called terminal.

In operation 430, the video telephone user registration system 300 may determine whether an end of the video call is requested from the calling terminal or the called terminal.

That is, the information deleting unit 330 may determine whether a termination request is generated for the video call between the calling terminal and the called terminal made according to the connection response of the called terminal to the video call request.

Alternatively, the information deleting unit 330 may determine whether a rejection response is generated from the called terminal or there is no connection response with respect to the video call request transmitted to the called terminal.

Alternatively, the information deleting unit 330 may determine whether cancellation of the video call request is requested from the calling terminal before the video call request is transmitted to the called terminal (that is, before the incoming call attempt is made to the called terminal). have.

In addition, the terminal checking unit 340 may determine the power state of the called terminal through the presence or absence of a signal periodically transmitted and received between the called terminal and the base station.

In addition, the terminal identification unit 340 may identify whether the video call rejection target set by the called terminal from the user information of the called terminal to determine whether the telephone number (CID) of the calling terminal is registered in the video call rejection target.

As a result of the determination in step 430, when the video call is terminated, in step 440, the video phone user registration system 300 deletes the user information registered in the database 320 in relation to the video call request.

That is, the information deleting unit 330 may delete the user information of the calling terminal and the called terminal registered in the database 320 in association with the request for ending the video call from the calling terminal or the called terminal.

Alternatively, in response to the video call request transmitted to the called terminal, if a rejection response is generated from the called terminal or there is no connection response, the video call cannot be made between the calling terminal and the called terminal. May delete the respective user information of the calling terminal and the called terminal registered in the database 320.

Alternatively, when the called terminal is in the power-off state, video calling between the calling terminal and the called terminal is impossible, so that the information deleting unit 330 may delete each user information of the calling terminal and the called terminal registered in the database 320. Can be.

Alternatively, when the telephone number (CID) of the calling terminal is registered in the video call rejection target set by the called terminal, video calling between the calling terminal and the called terminal is impossible, so that the information deleting unit 330 is registered in the database 320. Each user information of the called terminal and the called terminal can be deleted.

Alternatively, before the video call request is delivered to the called terminal (that is, before the incoming call is attempted to the called terminal), if the cancellation of the video call request is requested from the calling terminal, the information deleting unit 330 may execute the database 320. ) May delete the user information of the calling terminal.

Therefore, according to an embodiment of the present invention, since information (ie, user information) about a subscriber who actually performs a video call is registered in the database 320, system resources can be efficiently used, thereby facilitating the construction of an economic system. do.

5 is a diagram illustrating a process of registering user information when calling and receiving according to an embodiment of the present invention.

CSCF can be divided into P-CSCF (Proxy CSCF), I-CSCF (Interrogation CSCF), and S-CSCF (Serving CSCF).

The P-CSCF is a point where a user (UE) first meets when accessing an IMS (Interconnection Border Control Function) through GPRS access. The P-CSCF serves as a proxy or user agent defined in IETF RFC 2543. Can be.

The I-CSCF may serve as a contact point for all incoming calls to connect to subscribers in the network and as a contact point with other network subscribers roaming in the network.

The S-CSCF may perform a main function for call processing by receiving a subscriber profile in association with an HSS. The S-CSCF may have a function of RFC 2543 Registrar in a registration procedure.

Referring to FIG. 5, the P-CSCF forwards a SIP Register Request (hereinafter referred to as a SIP registration request message) from a user (UE) to the I-CSCF of the home domain of the UE and transmits the address of the S-CSCF in this registration procedure. When there is a SIP registration request message stored and forwarded from the UE to the S-CSCF, it can be forwarded to the S-CSCF.

When the I-CSCF receives the SIP registration request message, the I-CSCF selects a home subscriber server (HSS) using SLF, receives an address of the S-CSCF from the HSS, and allocates an S-CSCF to be in charge of actual registration. Can be.

The S-CSCF is a subsystem for controlling a session of a user (UE). The S-CSCF may register a user with the HSS, download user information, and store and manage a service profile.

In addition, the S-CSCF may transmit a response signal received from the home domain I-CSCF / BGCF / MGCF of the called terminal to the P-CSCF or I-CSCF through the called number dialed by the user.

In addition, the P-CSCF may deliver a response signal received from the I-CSCF or the S-CSCF to the UE.

Further, embodiments of the present invention include a computer readable medium having program instructions for performing various computer implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described by specific embodiments such as specific components and the like. For those skilled in the art to which the present invention pertains, various modifications and variations are possible. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims as well as the claims to be described later belong to the scope of the present invention. .

1 is a diagram illustrating the functions of the CSCF and the functions of the main interworking system.

2 is a diagram illustrating a network connection relationship between a calling terminal, a called terminal, and a CSCF.

3 is a diagram showing the configuration of a videophone user registration system according to an embodiment of the present invention.

4 is a flowchart illustrating a procedure of a video telephone user registration method according to an embodiment of the present invention.

5 is a diagram illustrating a process of registering user information when calling and receiving according to an embodiment of the present invention.

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

300: video telephone user registration system

310: information register

320: database

330: information deletion unit

340: terminal identification unit

Claims (16)

An information registration unit which registers user information of a calling terminal and user information of a called terminal associated with a video call request generated in the calling terminal in a database; And Deleting information for deleting each registered user information from the database when a termination request is generated for the video call between the calling terminal and the called terminal made according to the connection response of the called terminal to the video call request. part Video phone user registration system comprising a. The method of claim 1, The information registration unit, And a video telephone user registration system for registering the user information of the calling terminal when the video telephone request occurs. The method of claim 1, The information registration unit, And the registration process of the user information of the called terminal at the time point when the video call request is delivered to the called terminal. The method of claim 1, Terminal confirmation unit for confirming whether the calling terminal and the called terminal is a video call capable terminal More, As a result of the check, when the calling terminal and the called terminal are video call capable terminals, The information registration unit, And a video telephone user registration system for registering each user information of the calling terminal and the called terminal. The method of claim 1, If there is no connection response of the called terminal to the video call request or if a rejection response occurs at the called terminal, The information deleting unit, And a video telephone user registration system for deleting the respective user information from the database. The method of claim 1, Terminal confirmation unit for checking whether the called terminal is in a power off state More, As a result of the check, when the power is off, The information deleting unit, And a video telephone user registration system for deleting the respective user information from the database. The method of claim 1, Terminal confirmation unit for checking whether the calling terminal is included in the video call rejection target of the called terminal More, As a result of the check, if included in the object of the video call rejection, The information deleting unit, And a video telephone user registration system for deleting the respective user information from the database. The method of claim 1, The user information, And a video number of the calling terminal or the called terminal, at least one of a terminal type, a power state, and a video call rejection target. Registering the user information of the calling terminal and the called terminal associated with the video call request in a database as a video call request occurs; And Deleting the registered user information from the database when a termination request occurs for the video call between the calling terminal and the called terminal, which is made according to a connection response of the called terminal to the video call request. Video phone user registration method comprising a. 10. The method of claim 9, Registering the database, Registering the user information of the calling terminal when the video call request is generated; Video phone user registration method comprising a. 10. The method of claim 9, Registering the database, Registering the user information of the called terminal at the time point when the video call request is delivered to the called terminal; Video phone user registration method comprising a. 10. The method of claim 9, Confirming whether the calling terminal and the called terminal are video call capable terminals; More, As a result of the check, when the calling terminal and the called terminal are video call capable terminals, Registering the database, Registering the respective user information of the calling terminal and the called terminal; Video phone user registration method comprising a. 10. The method of claim 9, If there is no connection response of the called terminal to the video call request or if a rejection response occurs at the called terminal, Deleting each user information from the database; Video phone user registration method further comprising. 10. The method of claim 9, Checking whether the called terminal is in a power off state; And Deleting the user information from the database when the power is turned off as a result of the checking; Video phone user registration method further comprising. 10. The method of claim 9, Checking whether the calling terminal is included in the video call rejection target of the called terminal; And Deleting the user information from the database if the video call is included in the object of rejection; Video phone user registration method further comprising. A computer-readable recording medium having recorded thereon a program for performing the method of any one of claims 9 to 15.

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