KR20070012088A - System and method for waiting service in video telephone calls - Google Patents

Abstract

A waiting service system and method during a video call are provided to improve the service quality of a video call by providing a call waiting screen of an external terminal on a display window of a reception terminal when the external terminal attempts a call to the reception terminal while the reception terminal is being connected for video call communication with an origination terminal. An origination side system(230) transmits a call connection and an image message for a video call in a mobile communication network. A termination side system(250) maintains the video call for the image message received through the mobile communication network, detects a call attempt by a connection requester during the video call and executes a call waiting service. An HLR(Home Location Register)(205) is provided between the origination side system(230) and the termination side system(250), tracks a location of a reception terminal(209), and notifies the termination side system(250) corresponding to the location tracking about a call attempt state of an external terminal(211) corresponding to the connection requester.

Description

System and method for waiting for video call {SYSTEM AND METHOD FOR WAITING SERVICE IN VIDEO TELEPHONE CALLS}

1 is a block diagram illustrating a video mailbox using a conventional communication network.

2 is a block diagram showing a call waiting service system according to the present invention.

3 is a configuration diagram showing a main drawing of the present invention.

4 is a screen of a receiving terminal according to an embodiment of the present invention.

<Explanation of symbols for main drawings>

201: calling terminal 203: calling exchange

205: home location register 207: incoming exchange

209: receiving terminal 211: external short term

215: management server 401: image screen

403: Call waiting screen 405: Graphic information

407: waiting number information

The present invention relates to a video call service, and more particularly, to a video call waiting service system and method for notifying a called terminal of a video call or a voice call attempt of a connection requester to a subscriber in a video call. It is about.

In general, with the rapid development of computer, electronic, and communication technology, various wireless communication services using a wireless network have been provided. The most basic wireless communication service is a wireless voice call service that provides voice calls wirelessly between mobile terminal users regardless of time and place. The subscribers of the mobile communication service can freely move and talk with the other party anytime and anywhere using the wireless communication service, and through the wireless Internet service, information necessary for living, such as news, weather, sports, securities, exchange rates, and transportation Information and the like may be provided in various forms such as text, voice, and image.

Recently, you can use your camera phone to take pictures of yourself and your favorite scenes, as well as take photos and send them to your phone or send them via e-mail. It became possible. Furthermore, IMT-2000 (International Mobile Telecommunication 2000) (e.g., CDMA2000 1X, 3X, EV-DO, WideBand CDMA, etc.), which has recently been standardized by ITU-R due to the development of information communication, In addition to improving the existing voice and WAP service quality, multimedia services (AOD, VOD, etc.) including various video calls are provided.

In particular, the video mailbox service among the above-mentioned multimedia services is positioned as an essential content for a video call. Patent Publication 10-2004-0073876 describes the video mailbox function during a video call. This will be described based on the mobile communication network structure of FIG. 1.

Referring to FIG. 1, a mobile communication system provides a video call between mobile terminals supporting video telephony, and includes a calling party system 100 for making a video call and a called party system 150 for receiving the outgoing call. Are distinguished. The originating system 100 is a packet data service node connected to a base station (BTS) 103, a base station controller (BSC: 105), a switching unit (MSC: 107), and the base station 103 to provide a packet data service ( PDSN: 109, and the called party system 150 is connected to a base station (BTS: 153), a base station control unit (BSC: 155), a switching unit (MSC: 157), and the base station 153 to provide a packet data service. A packet data service node (PDSN) 159 is provided.

In addition, the MSC 107 of the calling party system 100 and the MSC 157 of the called party system 150 query the subscriber information from the HLR 131 while sharing a home location register (HLR) 131. Each of the PDSNs 109 and 159 of the source system 100 and the destination system 150 is connected to a gate keeper (GK) 133, and the video mailbox database (GK 133) is connected to the GK 133. A video mailbox server (MMC) 135 that manages 137 is connected.

In the conventional video mailbox system configured as described above, when a video call is first sent from the calling terminal 101, the GK 133 sets a forwarding setting of the called terminal 151, that is, unconditional switching to a video mailbox. Determine if it is. Unconditional transfer is an UFD (Unconditional Call Forward) which converts a video call into an unconditional video mailbox. Here, when the forwarding setting is set, the GK 133 switches the call to the video mailbox. On the other hand, when no forwarding setting is made, the GK 133 determines the state of the called terminal 151 from the HLR 131.

If the state of the called terminal 151 is not registered, the called terminal 151 cannot receive a video call, so the call is transferred to the video mailbox. Further, if the called terminal 151 is registered, it is determined whether the called terminal 151 is busy. Here, if the called terminal 151 is in a call, the called terminal 151 cannot receive a video call, so the call is transferred to the video mailbox. On the other hand, if the called terminal 151 is not busy, the call is normally delivered to the called terminal 151. At this time, it is determined whether the called terminal 151 receives the call. If the called terminal 151 does not receive the call, that is, if the call is not received within a predetermined time after the call is delivered to the called terminal 151, the call is switched to the video mailbox. When the called terminal 151 receives a call, that is, receives a call, a video call is made.

However, in the conventional video call, the call waiting service is not implemented. This is because when the caller attempts to make a video call to the caller or the called party while the caller and the caller are in a call, the caller has no confidence in the delivery of the message because the caller has no choice but to store the video message through the video mailbox. You will feel inconvenient to use. In addition, the incoming caller does not recognize the call attempt status of the access requester, and thus, it is difficult to receive an emergency message, and thus the call system needs to be improved.

The present invention has been made to solve the above problems, and an object of the present invention is to notify a call waiting state to a calling terminal corresponding to an access requester when a video call attempt is made to a subscriber requesting a video call. The present invention provides a video call waiting service system and method for displaying a call request status of a connection requestor to a called terminal to increase the practicality of a service.

Another object of the present invention, when a voice call attempt of the access requester attempts to access the subscriber in the video call is made, to display the voice call attempt status on the display window of the called terminal to increase the practicality of the service call waiting To provide a service system and method.

In the video call waiting service system according to the first aspect of the present invention for achieving the above object, in a mobile communication network structure for a video call, an outgoing call for transmission and video message transmission for the video call in the mobile communication network Side system; A called party system for maintaining a video call for the video message received through the mobile communication network and detecting a call attempt of a connection requester during a video call to execute a call waiting service; And a home location register provided between the calling party system and the called party system for notifying a call tracking status of an external terminal corresponding to a connection requester to a destination tracking system and a destination system corresponding to the location tracking. Characterized in that.

According to a preferred embodiment of the present invention, the called party system includes: a receiving terminal equipped with an application for accessing the mobile communication network, performing a video call, and displaying a screen of an access request terminal in response to the call waiting service; A terminating exchange that performs switching to provide a video message provided by the originating system to the receiving terminal; And a management server that detects a call attempt state for the access requester of the home location register in association with the destination exchange and generates call attempt information for notifying the receiving terminal of the call request state.

In addition, the application of the receiving terminal is characterized by consisting of a screen division algorithm for dividing the image screen of the receiving terminal and a call waiting notification algorithm for notifying the call waiting state of the external terminal.

The call waiting notification algorithm may be configured to display predetermined text information or graphic information indicating a call waiting state, including the phone number information of the external terminal, on a display window of the receiving terminal.

On the other hand, the video call waiting service method according to a second aspect of the present invention for achieving the above object, in the video call service method in a mobile communication network, a) a call from the at least one external terminal to the receiving terminal during the video call Attempting; b) providing call attempt information for notifying a call attempt state to the receiving terminal; And c) displaying the call attempt status of the at least one external terminal in a display window of the receiving terminal in response to the call attempt information.

According to a preferred embodiment of the present invention, the call attempt information, characterized in that further comprises the terminal information, image information and at least one serial information about the external terminal.

The step b) may include b-1) recognizing a call state of the receiving terminal from a corresponding destination exchange; b-2) receiving terminal information and image information on the external terminal; And b-3) notifying a call waiting state of the external terminal to the receiving terminal, and transmitting terminal information and image information of the external terminal to the receiving terminal.

In addition, the step c), c-1) receiving the call attempt information; c-2) dividing a main screen for a video call of the receiving terminal in response to the call attempt information; And c-3) displaying an image of the external terminal on the divided screen.

Also, the step c-2) may further include implementing a call waiting notification screen for notifying the call attempt status on the main screen.

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

2 is a block diagram illustrating a system for waiting for a video call according to an exemplary embodiment of the present invention. As shown, a caller system 230 for call connection and video message transmission for a video call in a mobile communication network such as a WCDMA network and a video call for the video message received through the mobile communication network are maintained. The call requesting system 250 detects a call attempt of a connection requester during a video call and executes a call waiting service. Between the calling party system 230 and the called party system 250, the home location register for notifying the call request status of the connection requester to the called party system 250 corresponding to the location tracking for the receiving terminal and the location tracking ( 205 is connected.

The originating system 230 is an originating terminal 201 that can be connected to the mobile communication network and an originating exchange that performs switching for transmitting a video message provided from the originating terminal 201 to the receiving terminal 209 ( 203).

The called party system 250 connects to the mobile communication network to perform a video call, and is equipped with a receiving terminal 209 equipped with an application for displaying a screen of an access request terminal in response to the call waiting service, and the calling party. A destination exchanger 207 that performs switching to provide a video message provided by the system 230 to the receiving terminal 209, and a connection requester of the home location register 205 in association with the destination exchange 207. And a management server 215 for detecting a call attempt state of the call and providing call attempt information including the terminal information, image information, etc. of the external terminal 211 corresponding to the connection requester to the receiving terminal 209.

The call attempt information may further include serial information for identifying each external terminal 211 corresponding to a plurality of connection requesters. This is applied to the display window of the receiving terminal 209 as a means for notifying that a plurality of external terminals 211 are making a connection request.

On the other hand, since the called party system 250 and the calling party system 230 implement a network capable of multimedia transmission, it will be natural to include a base station, a base station controller, and the like in addition to the above-mentioned exchange.

Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings. 3 is a flowchart for explaining the main operation of the present invention.

First, in step S301 the caller calls the receiving terminal 209 using the calling terminal 201. The call signal of the originating terminal 201 is provided to the originating exchange 203 through a mobile communication network of the originating system 230, for example, a WCDMA network. The originating exchange 203 recognizes the call number information required by the originating terminal 201.

The originating exchange 203 receives location information on the receiving terminal 209 from the home location register 205 to track the location of the receiving terminal 209 corresponding to the call number information. The originating exchange 203 switches to the corresponding exchange, that is, the destination exchange 207, based on the location information. In step S303, the destination exchange 207 calls the receiving terminal 209, and performs a call connection with the originating exchange 203 according to the call result. Therefore, the calling terminal 201 and the receiving terminal 209 maintain a mutual call path, thereby enabling voice calls and video calls.

In step S305, the video call request of the connection requester is made in the video communication state between the calling terminal 201 and the receiving terminal 209. The video call request of the access requestor may be made through the calling party system 230 or through the receiving system 250. In the video call request of the access requester, the external terminal 211 corresponding to the access requester terminal attempts a communication connection with the receiving terminal 209 through the mobile communication network. That is, as in step S307, the originating exchange 203 of the mobile communication network, for example, the originating system 230 performs a communication connection between the external terminal 211 and the home location register 205.

The home location register 205 tracks the destination exchange 207 corresponding to the reception terminal 209 and is notified of the call state to the reception terminal 209 by the destination exchange 207. That is, in step S309, the destination exchange 207 recognizes that the call connection state with respect to the receiving terminal 209 is currently maintained, and notifies the home location register 205 and the management server 215. In step S311, the home location register 205 activates the standby service during the video call, and waits for a call of the external terminal 211.

Therefore, the external terminal 211 maintains the setting of the call with the destination exchange 207 through the originating system 230. Then, in step S313, the management server 215 recognizes the video call waiting service operation of the home location register 205, and notifies the destination exchange 207 of the video call waiting service operation. In addition, the management server 215 provides the call attempt information to the destination exchange 207. The call attempt information includes terminal information on a connection requester, that is, a connection requester, image information, and serial information of the connection requester. The serial information may be assumed as a sequential number assigned to each access requester, which is used as a means for identifying a plurality of external terminals 211 making a call request during a video call of the receiving terminal 209.

In step S315, the destination exchange 207 notifies the receiving terminal 209 of the call waiting state for the external terminal 211. To this end, the destination exchange 207 notifies the receiving terminal 209 that the standby service during the video call is activated, and provides the call attempt information. In step S317, the receiving terminal 209 activates the call waiting service application in response to the call waiting service notification provided by the incoming exchange 207.

The call waiting service application includes a screen division algorithm for dividing the image screen of the receiving terminal 209 and a call waiting notification algorithm for notifying the call waiting state of the external terminal 211. Here, the call waiting notification algorithm may include predetermined text information or graphic information indicating a call waiting state, including access requester terminal information of the call attempt information, for example, phone number information of the external terminal 211. Display on the display.

For example, as shown in FIG. 4A, the receiving terminal 209 sets the image screen 401 according to the video call with the calling terminal 201 as the main screen. In addition, a standby screen 403 for the external terminal 211 is displayed on one side of the receiving terminal 209. As described above, the call waiting service application displays graphic information 405 for notifying the call waiting state of the external terminal 211 as graphic information and text information 409 for notifying the text information. On the other hand, in the embodiment of the present invention, when there are a plurality of requesting connection, the call waiting screen may provide a plurality of call waiting screens 403 as shown in (b) of FIG. In response thereto, waiting number information 407 may be provided. The call waiting screen 403 and waiting number information 407 described above are based on the serial information of the call attempt information.

On the other hand, when the external terminal 211 calls the receiving terminal 209 for a voice call, the call waiting service application of the receiving terminal 209 is graphical information 405 and (C) of FIG. The text information 409 may display that the voice call is waiting.

Thereafter, the process proceeds to step S319, and the receiving terminal 209 refers to the call waiting screen 403 provided on the image screen 401 and connects a call path with any one external terminal 211. It can execute a video call with the external terminal 211 using any one of a specific key of the receiving terminal 209, for example, a "SEND" key, a "call" key, a "confirmation" key, or a predetermined key arbitrarily set. . Here, of course, the receiving terminal 209 may select any one of a plurality of external terminals waiting for a call by using a predetermined key.

As described above, a system and method for waiting for a video call according to the present invention, when there is a call attempt from an external terminal of a third party to a receiving terminal connected with a calling terminal and a video call path, is displayed on the display terminal of the receiving terminal. By providing a call waiting screen for a call, and making a selective video call with a plurality of call waiters, there is an effect of improving the service quality of the call.

What has been described above is merely an embodiment of the present invention, and is not limited to the embodiment of the present invention, and as claimed in the following claims, without departing from the gist of the present invention, ordinary knowledge in the field to which the present invention belongs. Anyone having the technical spirit of the present invention to the extent that various changes can be made.

Claims (23)

In the mobile communication network structure for a video call, An originating system for calling and transmitting a video message for a video call in the mobile communication network; A called party system for maintaining a video call for the video message received through the mobile communication network and detecting a call attempt of a connection requester during a video call to execute a call waiting service; And It is provided between the calling party system and the called party system, and includes a home location register for notifying the call attempt status of the external terminal corresponding to the connection request to the destination system corresponding to the location tracking and the location tracking for the receiving terminal; Standby service system, characterized in that the video call. The system of claim 1, wherein the mobile communication network is a wideband code division multiple access. The system as claimed in claim 1, wherein the calling system comprises an originating terminal which can be connected to the mobile communication network, and an originating exchange which performs switching for transmitting a video message provided from the originating terminal to the receiving terminal. Busy standby service system. The system of claim 1 or 3, wherein the called party system is A receiving terminal equipped with an application for accessing the mobile communication network to perform a video call and displaying a screen of the access request terminal in response to the call waiting service; A terminating exchange that performs switching to provide a video message provided by the originating system to the receiving terminal; And The video call waiting service, comprising: a management server that detects a call attempt state for a connection requester of the home location register in association with the destination exchange and generates call attempt information for notifying the receiving terminal of the call request state; system. The system of claim 4, wherein the call attempt information includes terminal information, image information, and the like of the external terminal. The system of claim 5, wherein the call attempt information further includes serial information for identifying each external terminal corresponding to a plurality of requesting users for the receiving terminal. . The method of claim 4, wherein the application of the receiving terminal, And a screen division algorithm for dividing the video screen of the receiving terminal and a call waiting notification algorithm for notifying a call waiting state of an external terminal. The call waiting notification algorithm of claim 7, wherein the call waiting notification algorithm displays predetermined text information or graphic information indicating the call waiting state, including the phone number information of the external terminal, on a display window of the receiving terminal. Standby service system. The image of claim 7, wherein the receiving terminal sets an image screen according to a video call with the calling terminal as a main screen, and displays a standby screen for the external terminal on one side of the main screen. Call waiting service system. 10. The system of claim 9, wherein the main screen further includes graphic information and text information for notifying a video call waiting state of the external terminal as graphic information. 11. The video call waiting service according to claim 10, wherein if the video call waiting state of the external terminal is at least two or more, the waiting number information is displayed correspondingly and a selective call is made with any one external terminal. system. The system of claim 9, wherein the main screen further includes graphic information and text information for notifying the voice call waiting state of the external terminal as graphic information. 13. The video call waiting service according to claim 12, wherein, when the voice call waiting state of the external terminal is at least two or more, the waiting number information is displayed correspondingly and a selective call is made with any one external terminal. system. In the video call service method in a mobile communication network, a) attempting a call from at least one external terminal to a receiving terminal in a video call; b) providing call attempt information for notifying a call attempt state to the receiving terminal; And c) displaying the call attempt status of the at least one external terminal in response to the call attempt information on a display window of the receiving terminal. 15. The method of claim 14, wherein the call attempt information includes terminal information and image information of the external terminal. 15. The method of claim 14, wherein the call attempt information further comprises serial information about the at least one external terminal. The method of claim 14 or 15, wherein step b) b-1) recognizing a call state of the receiving terminal from a corresponding destination exchange; b-2) receiving terminal information and image information on the external terminal; And b-3) notifying the call waiting state of the external terminal to the receiving terminal, and transmitting the terminal information and the image information of the external terminal to the receiving terminal. 17. The method of claim 14 or 16, wherein b) comprises: b-1) recognizing a call state of the receiving terminal from a corresponding destination exchange; b-2) receiving terminal information, image information, and serial information about the external terminal; And b-3) notifying the call waiting state of the external terminal to the receiving terminal, and transmitting terminal information, image information, and serial information of the external terminal to the receiving terminal. Service method. The method of claim 14, wherein step c) c-1) receiving the call attempt information; c-2) dividing a main screen for a video call of the receiving terminal in response to the call attempt information; And c-3) displaying the image of the external terminal on the divided screen. The method of claim 14, wherein step c) c-1) receiving the call attempt information; c-2) dividing a main screen for a video call of the receiving terminal in response to the call attempt information, wherein the main screen is made for each external terminal that is currently connected; And c-3) displaying the image of the external terminal on the divided screens, respectively. The terminal of claim 20, wherein the call attempt information includes terminal information about the external terminal, image information, and respective serial information about at least one external terminal currently attempted to be connected, and the split screen is based on the serial information. Standby service method characterized in that it is generated by. The method of claim 19 or 20, wherein the step c-2), And a call waiting notification screen for notifying the call attempt status on the main screen. The method of claim 19 or 20, wherein the step c-2), And a voice call waiting notification screen for notifying a voice call attempt status on the main screen.

Images