KR100897049B1 - Method for notifiyng possibility of video call of terminal - Google Patents

Abstract

According to an aspect of the present invention, a method for notifying whether a video call is possible in a mobile terminal is disclosed. According to an embodiment of the present invention, a method of notifying whether a video call is possible in a mobile terminal comprises the steps of receiving a call connection request from a first mobile terminal to a second mobile terminal, and a home location register to which the phone number of the second mobile terminal belongs ( Transmitting a route inquiry message of the second mobile terminal to the HLR, receiving a route response message including video call availability information of the second mobile terminal from the home location register (HLR), and using the received route response message. The call response message is received from the second mobile terminal after the call connection establishment request to the second mobile terminal, and an alerting message including video call availability information of the second mobile terminal is delivered to the first mobile terminal. May be included.

Video call availability

Description

How to notify whether a mobile terminal can make a video call {METHOD FOR NOTIFIYNG POSSIBILITY OF VIDEO CALL OF TERMINAL}

1 is a view for explaining a mobile communication system according to an embodiment of the present invention.

2 is a call processing diagram for explaining a video call availability notification method of a mobile terminal according to an embodiment of the present invention.

3 to 6 are diagrams for explaining a parameter including the video call availability information of the terminal according to an embodiment of the present invention.

7 is an exemplary view for explaining a video call availability notification method of a mobile terminal according to an embodiment of the present invention.

8 is an exemplary view for explaining a video call possibility information storage method of the terminal according to an embodiment of the present invention.

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

100: first terminal 200: second terminal

110: first UTRAN 210: second UTRAN

120: first MSC 220: second MSC

300: HLR

The present invention relates to a method for notifying whether a video call is possible for a mobile terminal, and more particularly, to a method for notifying whether a video call is possible for a called terminal in a mobile communication system.

Portable mobile communication is in the spotlight as a new medium for providing image information service together with existing TVs and PCs. The video service refers to a service that simultaneously uses a display output device and an audio output device for a service, and may include a two-way video call service, a VOD download, a VOD streaming, a mobile TV, a mobile flash, and a game.

However, the current video service does not know whether the other terminal can make a video call from the user side of the calling terminal and the called terminal. As a result, the video service provides an obstacle to the activation of the video call service of the user.

In addition, when the calling terminal attempts to establish a video call connection to a terminal that does not support a video call, the called terminal automatically ignores the video call or stops the video call by forcibly interrupting the video call and delays the connection of the existing voice call. There is a problem.

Accordingly, an object of the present invention is to provide a mobile terminal that expands and provides a subscriber's selection authority without interrupting a voice call or a video call service by being informed whether a video call is available for a video call when the video call capable terminal connects to a voice call. It is to provide a method for notifying whether a video call is possible.

Another object of the present invention is that the video call capable terminal is not informed of the possibility of video call of the called terminal when the voice call is connected, so that the video call is not supported by the terminal does not connect the video call, unnecessary waste of mobile resources or billing It is to provide a method for notifying whether a video call is available for a terminal.

An object of the present invention is to provide a video call availability method of a mobile terminal capable of activating a video call service by being notified whether a video call is available for a called terminal when a video call capable terminal is connected to a voice call.

Other objects of the present invention will be readily understood through the following description.

According to an aspect of the present invention, a method for notifying whether a video call is possible in a mobile terminal is disclosed.

According to an embodiment of the present invention, a method for notifying whether a video call is available in a mobile terminal may include receiving a call connection request from a first mobile terminal to a second mobile terminal, and a home location register to which a phone number of the second mobile terminal belongs. Transmitting a path inquiry message of the second mobile terminal to the HLR; receiving a path response message including video call availability information of the second mobile terminal from the home location register HLR; A call response message is received from the second mobile terminal after the call connection establishment request is made to the second mobile terminal using the route response message, and the video call availability information of the second mobile terminal is included in the first mobile terminal. Alerting) message may be delivered.

According to another aspect of the present invention, an exchange for notifying video call availability information of a mobile terminal is disclosed.

Switch for notifying the video call availability information of the mobile terminal according to an embodiment of the present invention means for receiving a call connection request from the first mobile terminal to the second mobile terminal, the phone number of the second mobile terminal belongs Means for transmitting a route query message of the second mobile terminal to a home location register (HLR), and for receiving a route response message including video call availability information of the second mobile terminal from the home location register (HLR); Means and the received path response message are used to receive a call connection message from the second mobile terminal after the call connection establishment request to the second mobile terminal, the video call availability information of the second mobile terminal to the first mobile terminal Means for conveying the included alerting message may be included.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals regardless of the reference numerals and redundant description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, with reference to the drawings will be described in detail.

1 is a view for explaining a mobile communication system according to an embodiment of the present invention.

Referring to FIG. 1, a mobile communication system according to an embodiment of the present invention is a mobile communication system capable of a video telephony service, and hereinafter, a description will be given based on a wideband code division multi access (WCDMA) system.

In the mobile communication system according to the present invention, first and second UTRANs (UMTS Terrestrial RANs) 110 and 210 for transmitting and receiving radio signals to and from the first and second mobile terminals 100 and 200 and managing mobility and radio resources, HLR (Home Location) for storing first and second MSCs 120 and 220 for relaying signals received from the first terminal 100 according to a set path, user service profiles and location information Register).

The first and second mobile terminals 100 and 200 may be various digital electronic devices such as a mobile phone, a personal digital assistant (PDA), a laptop computer, and receive a voice call service and / or a video call service through a mobile communication network. Other devices that may be included.

According to the present invention, when the first mobile terminal 100 attempts to make a voice call to the second mobile terminal 200, the first mobile terminal 100 is connected to the second mobile terminal 200 while the voice call is connected. 2 The mobile terminal 200 receives video call availability information on whether the mobile terminal 200 is a video call capable terminal, and is notified to the user through a user interface. The notification method may be displayed through a display or a guide voice may be output through a speaker.

The first mobile terminal 100 may receive video call availability information of the second mobile terminal 200, hang up a voice call to the second mobile terminal 200, and request a video call setup. That is, the user of the calling terminal, which does not know whether the called terminal can make a video call and is not able to make a video call, may be notified of the video call of the called terminal and attempt to make a video call.

In addition, the first mobile terminal 100 receives the video call availability information of the second mobile terminal 200, and records whether or not the video call is possible in the phone number storage that stores the phone number of the second mobile terminal 200 It can be used when trying to call later.

The first and second UTRANs (UMTS Terrestrial RANs) 110 and 210 transmit and receive radio signals with the first and second mobile terminals 100 and 200, and the mobility of the first and second mobile terminals 100 and 200. And manage radio resources.

The first and second Mobile Service Switching Centers (MSCs) 120 and 220 are switches and databases that provide circuit switching services to the first and second mobile terminals 100 and 200 to process outgoing or incoming signals. It is responsible for the central control function, which coordinates the efficient operation of voice services and video calls.

The first and second Mobile Service Switching Centers (MSCs) 120 and 220 are databases that store copies of more accurate information about the service profile of the visited user and the location of the first and second mobile terminals within the support system. Contains VLR.

In addition, the first and second MSCs 120 and 220 may be connected to other public mobile networks, wireline telephone networks, and private networks through a gateway mobile service switching center (GMSC) 300. It can be connected, and can be connected to another exchange.

When the first mobile terminal 200 requests a voice call setup from the second mobile terminal 200, the first MSC 120 inquires of the HLR to which the phone number of the second mobile terminal belongs to the second mobile terminal 200. Receive route information and video call availability information of the second mobile terminal 200.

When the first MSC 120 receives the video call availability information of the second mobile terminal 200, the first MSC 120 transmits the video call availability information received to the first mobile terminal 100 to the user of the first mobile terminal 100. Is notified whether the second mobile terminal 200 can make a video call through the user interface.

HLR 300 is a database located in a user home system that stores a master copy of a user service profile.

The HLR 300 stores video callable information of the mobile terminal of the mobile subscriber. Here, the video call availability information stores the video call availability information of the mobile terminal together with the mobile terminal information such as the type information and version information of the mobile terminal when the mobile terminal subscribes to the mobile communication service or the mobile terminal is changed and reported. do.

When the HLR 300 receives the path information of the second mobile terminal 200 from the first MSC 120, the HLR 300 responds to the path information and the video call availability information.

2 is a call processing diagram for explaining a video call availability notification method of a mobile terminal according to an embodiment of the present invention.

In step S205, the first mobile terminal 100 transmits a call setup request message (SETUP) for a voice call to the second mobile terminal 200 to the first MSC 120 through the first UTRAN 110. Here, although the first mobile terminal 100 is a terminal capable of a video call, it is unclear whether the second mobile terminal 200 is a video call capable terminal, so it may first attempt a voice call.

In step S210, the first MSC 120 sends a SRI (Status Request Indication) message for inquiring the HLR 300 corresponding to the telephone number of the second mobile terminal 200 to route information of the second mobile terminal 200. Send it.

The HLR 300 requests a PRN (Provide Routing Number) from the second MSC 220 where the second mobile terminal 200 is located, and receives a PRN acknowledgment message.

The HLR 300 stores the path information to the second switch 220 where the second mobile terminal 200 is located and the video call capable terminal information on whether the second mobile terminal 200 is a video call capable terminal.

If the second mobile terminal 200 is located in another public mobile communication network, the first MSC 120 forwards to transmit a number and other information necessary for call processing and routing to the gateway MSC (not shown). ISUP IAM (ISDN User Part Initial Address) can be transmitted. At this time, the gateway MSC may receive the IAM message and inquire of the route information to the HLR corresponding to the telephone number of the second mobile terminal 200.

In operation S215, the HLR 300 transmits an SRI acknowledgment message including the path information of the second mobile terminal 200 and the video call availability information of the second mobile terminal 200 to the first MSC 120. .

Here, as shown in FIG. 3, the HLR 300 transmits video call availability information of the second mobile terminal 200 using a specific field included in a response message of the SRI, for example, a VideoCapability parameter of an ExtensionContainer field. Can be.

Referring to FIG. 4, the VideoCapability parameter included in the response message of the SRI has a size of one octet as a parameter included in the ExtensionContainer of the SRI response message defined in the 3GPP TS 29.002 standard, and has a specific bit, for example, that of the first bit. By setting the value to 1 or 0, video callable information can be delivered.

In step S220, the first MSC 120 forwards the received second mobile terminal 200 to transmit the number and other information necessary for call processing and route establishment to the second MSC 220 using the route information. Send ISUP IAM (ISDN User Part Initial Address).

In step S225, the second MSC 220 sets up a paging and traffic channel for the voice call to the second mobile terminal 200 through a call setup request message (SETUP) message.

In steps S230 and S235, the second mobile terminal 200 receives the information indicating that all the address information necessary for the voice call setup has been received by the second MSC 220 through the alerting message, and the second mobile terminal 200 answers the call. Send a call response message (Connect) that informs you.

In steps S240 and S245, the second MSC 220 receives ISUP ACM (Address Complete), which is a message indicating that all the address information necessary for call setup has been received, and ISUP ANM (Answer), which is a message indicating that the called party has answered the call. Send it.

In steps S250 and S255, the first MSC 120 transmits an alerting message and a connect message informing of a resource allocation and call response for voice call setup to the second mobile terminal 200 to the first mobile terminal 100.

Here, as shown in FIG. 5, the first MSC 120 transmits the video callable information of the second mobile terminal 200 to a specific field of the alerting message, for example, when ss- Can be delivered using the Notification parameter.

Referring to FIG. 6, the ss-Notification parameter inside the alerting is defined by the 3GPP TS 24.008 standard, has a size of one octet, and sets a value of a specific bit, for example, the eighth bit, to 1 or 0 to make a video call. Possible information can be conveyed.

When the first mobile terminal 100 receives an alerting message including video call availability information from the first MSC 120, as shown in FIG. 7, through the display or the speaker of the first mobile terminal 100. "This phone number is a phone number where a video call is possible." The second mobile terminal 200 may guide whether or not the video call is possible.

In addition, when the second mobile terminal 200 receives the video call availability information, the first mobile terminal 100 may store the video call availability information together with the phone number of the second mobile terminal 200 of the phone number storage unit. have.

Subsequently, when the first mobile terminal 100 attempts to make a voice call or a video call to the second mobile terminal 200, as shown in FIG. The user of the first mobile terminal 100 may refer to the phone number storage unit and attempt a video call to the video phone capable terminal.

When the first mobile terminal 100 receives a Connect message from the first MSC 120, a voice call is connected to the second mobile terminal 200, and a voice call may be performed with each other.

8 is a view for explaining an icon indicating whether or not the video call of the terminal according to an embodiment of the present invention.

When the first mobile terminal 100 as the originating terminal checks the video call availability information of the second mobile terminal 200 which is the called terminal included in the alerting message received from the first MSC 120, the first mobile terminal 100 Whether or not a video call is possible may be stored in a corresponding phone number of a call log, a phone book, and a phone book of a USIM / SIM card.

For example, when the first mobile terminal 100 checks the phone number of the second mobile terminal 200 in the phone book, an icon 100 indicating that the video call is possible may be represented together.

Therefore, the first mobile terminal 100 determines whether the second mobile terminal 200 can make a video call after the first voice call connection, and stores the video call service. And, by not attempting a video call to the video call non-support terminal, it is possible to prevent unnecessary waste of radio resources.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention has the effect of expanding the subscriber's right to select without interrupting the voice call or the video call service by being notified whether or not the video call of the called terminal when the video call is available.

According to the present invention, since a video call capable terminal is notified of a video call of a called terminal when a voice call is connected, a video call is not connected to an unsupported video call terminal, thus unnecessary wireless resources are not wasted or charged. .

The present invention has the effect of activating the video call service by being notified of the video call availability of the called terminal when the video call capable terminal is connected to the voice call.

Other objects of the present invention will be readily understood through the following description.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

Claims (9)

In the method of notifying whether the video call of the mobile terminal, Receiving a call connection request from the first mobile terminal to the second mobile terminal; Transmitting a route query message of the second mobile terminal to a home location register (HLR) to which the phone number of the second mobile terminal belongs; Receiving a path response message including video call availability information of the second mobile terminal from the home location register (HLR); And The call response message is received from the second mobile terminal after the call connection establishment request is made to the second mobile terminal by using the received path response message, and the video call availability information of the second mobile terminal is included in the first mobile terminal. Include delivering an alerting message, The path response message (SRI ack) indicates video call availability information through the VideoCapability parameter, including the VideoCapability parameter of the ExtensionContainer field, And the calling message indicates video call availability information through the ss-Notification parameter, including the ss-Notification parameter of the NotifySS field of the Facility IE. delete The method of claim 1, The video capability parameter is a specific bit is set to 1 or 0 to indicate whether or not the video call availability of the mobile terminal, characterized in that. delete The method of claim 1, The ss-Notification parameter is a specific bit is set to 1 or 0 to indicate whether the video call is possible, characterized in that the mobile terminal, the video call availability. The method of claim 1, After the step of delivering an alerting message including the video call availability information of the second mobile terminal to the first mobile terminal, The method of claim 1, further comprising the step of notifying the video call availability of the second mobile terminal through the display or the speaker of the first mobile terminal. The method of claim 1, After the step of delivering an alerting message including the video call availability information of the second mobile terminal to the first mobile terminal, Storing video call availability information of the second mobile terminal by a first mobile terminal; And And notifying whether the video call is possible with respect to the telephone number of the second mobile terminal through a user interface of the first mobile terminal. In the exchange for notifying the video call availability information of the mobile terminal, Means for receiving a call connection request from the first mobile terminal to the second mobile terminal; Means for transmitting a route query message of the second mobile terminal to a home location register (HLR) to which the telephone number of the second mobile terminal belongs; Means for receiving a path response message including video call availability information of the second mobile terminal from the home location register (HLR); And The call response message is received from the second mobile terminal after the call connection establishment request is made to the second mobile terminal by using the received path response message, and the video call availability information of the second mobile terminal is included in the first mobile terminal. Means for conveying an alerting message, The path response message (SRI ack) indicates video call availability information through the VideoCapability parameter, including the VideoCapability parameter of the ExtensionContainer field, And wherein the calling message indicates video callable information through the ss-Notification parameter, including the ss-Notification parameter of the NotifySS field of the Facility IE. In a recording medium in which a program of instructions for executing a video call availability notification method of a mobile terminal is tangibly implemented, and a program that can be read by an electronic device is recorded. Receiving a call connection request from the first mobile terminal to the second mobile terminal; Transmitting a route query message of the second mobile terminal to a home location register (HLR) to which the phone number of the second mobile terminal belongs; Receiving a path response message including video call availability information of the second mobile terminal from the home location register (HLR); And The call response message is received from the second mobile terminal after the call connection establishment request is made to the second mobile terminal by using the received path response message, and the video call availability information of the second mobile terminal is included in the first mobile terminal. Include delivering an alerting message, The path response message (SRI ack) indicates video call availability information through the VideoCapability parameter, including the VideoCapability parameter of the ExtensionContainer field, The calling message is a program that executes a video call availability notification method of a mobile terminal, characterized in that it indicates video call availability information through the ss-Notification parameter including the ss-Notification parameter of the NotifySS field of the Facility IE. The recorded recording medium.

Images