KR20110048986A - Method and apparatus for providing multimedia communication by using heterogeneous networks - Google Patents

Method and apparatus for providing multimedia communication by using heterogeneous networks Download PDF

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Publication number
KR20110048986A
KR20110048986A KR1020090105780A KR20090105780A KR20110048986A KR 20110048986 A KR20110048986 A KR 20110048986A KR 1020090105780 A KR1020090105780 A KR 1020090105780A KR 20090105780 A KR20090105780 A KR 20090105780A KR 20110048986 A KR20110048986 A KR 20110048986A
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KR
South Korea
Prior art keywords
internet network
video call
called terminal
call device
network
Prior art date
Application number
KR1020090105780A
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Korean (ko)
Inventor
노해강
Original Assignee
에스케이 텔레콤주식회사
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Priority to KR1020090105780A priority Critical patent/KR20110048986A/en
Publication of KR20110048986A publication Critical patent/KR20110048986A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

PURPOSE: A multimedia call device is provided to reduce a data call load of a client about a video call. CONSTITUTION: An internet connection confirmation unit(220) transmits an internet connection confirmation request message with an originating signal to a receiving terminal. If the receiving signal is connected to an internet, a mobile network control unit(230) transmits the originating signal to the receiving terminal. If additional command is inputted in a state that the originating signal is connected, an internet control unit(240) transmits an additional information to a receiving terminal according to the additional command through an internet.

Description

Method and Apparatus for Multimedia Call using Heterogeneous Networks {Method And Apparatus for Providing Multimedia Communication by Using Heterogeneous Networks}

One embodiment of the present invention relates to a method and apparatus for multimedia call using heterogeneous networks. More specifically, in order to solve the problems of video call quality and high cost, which are obstacles to the video call service for the convenience of customers, voice over the mobile communication network can be used to use multimedia calls including high quality video at low cost. The present invention relates to a multimedia call method and apparatus using a heterogeneous network for transmitting and receiving images through an internet network during a call.

In general, a video call service transmits video data captured by a camera and voice data input with a microphone simultaneously to a video call counterpart, and outputs a video and audio received from a mobile communication terminal of the received video call counterpart. Enable video call between call service users.

However, in the conventional video call, only a video call provided with a low quality video is supported by limited radio resources of the mobile communication network. Accordingly, it may be difficult to communicate smoothly due to deterioration of image quality and accurately recognize the face of the other party. Sometimes hard to do.

In order to solve the above problems, an embodiment of the present invention provides a heterogeneous network for transmitting and receiving images through an internet network during a voice call through a mobile communication network so that a multimedia call including a high quality image can be used at a low cost. It is a main object to provide a method and apparatus for using a multimedia call.

In order to achieve the above object, an embodiment of the present invention, when there is an AP recognized in the vicinity, a local area communication unit for accessing the Internet network through the AP; An outgoing network connection confirmation unit for transmitting an internet connection connection request message to the destination terminal along with the outgoing signal using a mobile communication network when an outgoing signal for connecting a voice call to the called terminal occurs; A mobile communication network control unit for transmitting a call to the destination terminal using a mobile communication network to connect a voice call when it is determined that the destination terminal is connected to the Internet network based on the Internet connection connection response message received from the destination terminal; And an internet network controller for transmitting additional information according to the additional command to the called terminal through the internet network when the additional command is input while the call signal is connected.

In addition, according to another object of the present invention, when there is an AP recognized in the vicinity, a short-range communication step of accessing the Internet network through the AP; When an outgoing signal for connecting a voice call to the called terminal occurs, an internet network connection confirming step of transmitting an internet connection connection request message to the called terminal together with the outgoing signal using a mobile communication network; If it is determined that the called terminal is connected to the Internet network based on the Internet connection confirmation response message received from the called terminal, the voice call is transmitted to the called terminal using a mobile communication network. A mobile communication network control step of allowing the connection; And an internet network control step of transmitting additional information according to the additional command to the called terminal through the internet network when an additional command is input while the call signal is connected. .

As described above, according to one embodiment of the present invention, since the burden of data call charges on the video call is reduced, there is an effect that a video call using a low-cost high-definition video is possible.

In addition, since video and data can be shared with the other party during a voice call, the efficiency of wireless data use can be increased, and video calls can be made through an AP installed in the home. There is an effect that can increase the content sales revenue for increased satisfaction and additional services.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same elements as much as possible even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to that other component, but there may be another configuration between each component. It is to be understood that the elements may be "connected", "coupled" or "connected".

The outgoing video call device 110 and the incoming video call device 112 according to an embodiment of the present invention may include a memory and a program for storing a browser and a program for interworking with the mobile communication network 120 and the Internet network 130. Means a terminal equipped with a microprocessor for execution and operation and control. In addition, the outgoing video call device 110 and the incoming video call device 112 according to an embodiment of the present invention is connected to the mobile communication network 120 and connected to the Internet network 130 to make a multimedia call including video. Means a terminal having a camera module for performing, means a terminal equipped with a separate program for transmitting additional commands and additional information for the multimedia call, using the mounted program to the mobile communication network 120 It means a terminal capable of synchronizing the audio signal through the video signal through the Internet network 130.

1 is a block diagram schematically illustrating a video call system using a heterogeneous network according to an embodiment of the present invention.

According to an embodiment of the present invention, a video call system using a heterogeneous network includes an outgoing video call device 110, an incoming video call device 112, a mobile communication network 120, a transmitter 124, an exchanger 124, and an internet network. 130, an access point 132, and an IP allocation server 134.

The outgoing video call device 110 and the incoming video call device 112 are terminals for performing normal voice call and data communication by wireless communication in conjunction with the mobile communication network 120, and the Internet network 130 according to a user's key manipulation. ) Refers to a terminal capable of receiving various web page data from a personal computer (PC), a notebook computer, a personal digital assistant (PDA), and a mobile communication terminal. It can be one. That is, the terminal refers to a terminal that supports both the outgoing video call device 110 and the incoming video call device 112, and can perform voice call and data communication through the mobile communication network 120, and the internet network 130. Means a terminal that can perform a separate data communication through. The outgoing video call device 110 and the incoming video call device 112 include a web browser for accessing the Internet network 130, a memory for storing a program, a microprocessor for executing and controlling a program, and the like. Means a terminal. That is, the outgoing video call device 110 and the incoming video call device 112 may be any terminal connected to the mobile communication network 120 and the Internet network 130 so that any communication is possible, and may include a laptop computer, a mobile communication terminal, It is a broad concept that includes all communication computing devices such as PDAs. In addition, the outgoing video call device 110 and the incoming video call device 112 is a device capable of performing a multimedia call including a video through any one of the mobile communication network 120 and the Internet network 130.

The outgoing video call device 110 accesses the Internet network 130 through the AP 132 when there is an AP 132 recognized therein. The outgoing video call device 110 checks whether there is an AP 132 that is recognized at regular intervals, and when there is an AP 132 that is recognized around the check result, the IP allocation server 134 through the AP 132. It receives the IP from the to perform the function of accessing the Internet network 130. When the outgoing video call device 110 generates an outgoing call for the voice call to the incoming video call device 112, the mobile video network 120 requests the incoming video call device 112 to check the Internet network connection with the outgoing call. Send a message. When the outgoing video call device 110 determines that the incoming video call device 112 is connected to the Internet network 130, based on the Internet network connection confirmation response message received from the incoming video call device 112, 120, the call signal is connected to the incoming video call device 112.

The outgoing video call device 110 transmits the acquired additional information to the incoming video call device 112 through the Internet network 130 when an additional command is input while the call signal is connected. The outgoing video call device 110 outputs an additional menu for receiving additional information on a screen to which an outgoing signal is connected. When the video call command according to the additional command is input, the outgoing video call device 110 transmits a video call consent request message to the incoming video call device 112 and agrees to the video call received from the incoming video call device 112. As a result of checking the response message, when the incoming video call device 112 agrees with the video call, the acquired video information is transmitted to the incoming video call device 112, and the video information received through the incoming video call device 112 is received. This function outputs the signal on the screen to which the call signal is connected. When the live video sharing command according to an additional command is input, the outgoing video call device 110 shares a screen on which the captured video information or previously stored video information is reproduced with the incoming video call device 112 through the Internet. Do this.

When a chat command according to an additional command is input, the outgoing video call device 110 outputs a chat window on a screen to which an outgoing call is connected, and receives the text information inputted in the chat window through the Internet network 130. Perform a function of transmitting and receiving to 112. When the telephone number search command according to the additional command is input, the outgoing video call device 110 searches for a specific telephone number through the Internet network 130 and transmits the found telephone number to the incoming video call device 112. Performs a function of controlling the video call device 112 to register the retrieved telephone number. When the multimedia data sharing command according to the additional command is input, the outgoing video call device 110 transmits the previously stored multimedia data to the incoming video call device 112 through the Internet network 130 while the call signal is connected. To perform.

When the outgoing video call device 110 receives a browser screen sharing command according to an additional command, the outgoing video call device 110 shares the connection screen of the browser separately driven with the incoming call connection with the incoming video call device 112 through the Internet network 130. It performs the function. When the outgoing video call device 110 receives a favorite list transmission command according to an additional command, the outgoing video call device 110 outputs a favorite list of a browser driven while an incoming call is connected, and receives the favorite list through the Internet network 130. It transmits to the video call device 112. When the image generation command according to the additional command is input, the outgoing video call device 110 drives a separate image generation and editing program while the call signal is connected, and transmits the image generated by the image generation and editing program to the Internet network. Share with the incoming video call device 112 through, and performs a function to change the generated image according to the modification command of the incoming video call device 112.

The mobile communication network 120 is wirelessly connected to the outgoing video call device 110 and the incoming video call device 112 to perform a service such as a voice communication service, a wireless data service, a wireless Internet service, a video call or a message service. It performs all the functions to perform. In addition, the mobile communication network 120 includes a transmitter 124 and a switch. Here, the transmitter 124 performs a location registration function, a function of allocating a radio channel, various functions required for radio call processing such as handoff, and the like, and an outgoing video call device 110 through a traffic channel among signal channels. A network end point that is directly connected to the outgoing video call device 110 and the incoming video call device 112 by receiving a call request signal from the baseband, performing baseband signal processing, wired / wireless conversion, and transmitting / receiving a wireless signal. Means the device. In addition, the transmitter 124 may allocate and release radio channels for the outgoing video call device 110, control transmission power, determine intercell soft handoff and hard handoff, transcoding, Vocoding, Global Positioning System (GPS) clock distribution, and the like. The exchange 124 performs basic and additional service processing for providing a voice communication service, incoming and outgoing call processing of subscribers, location registration procedure and handoff procedure processing, interworking with other networks, and the like. The exchange 124 performs a function of setting up a call and connecting a call to the outgoing video call device 110 and the incoming video call device 112.

The internet network 130 is a network capable of transmitting and receiving data using an internet protocol using a wired or wireless communication technology, and is transmitted and received between various servers that provide Internet services, an outgoing video call device 110, and an incoming video call device 112. Performs the function of relaying data. That is, the Internet network 130 may include various servers capable of providing Internet services, but the present invention will be described as a concept of a network capable of transmitting and receiving data using the Internet protocol. In addition, in the present invention, the Internet network 130 includes an AP 132 and an IP allocation server 134. Here, the AP 132 is a device for connecting data communication, and refers to a device capable of reading a receiving side address from the transmitting side information, designating the most appropriate communication path, and transmitting the data to another communication network. That is, the AP 132 extracts the location of the data, specifies the best communication path for the extracted location, and redirects the data packet to the next device along the designated communication path, and shares several lines in a general network environment. You may. Meanwhile, in the present embodiment, the AP 120 may be used as a concept including a router, a repeater, a repeater, and a bridge. The IP allocation server 134 is a server for allocating an IP for connecting to the Internet network 130. The IP allocation server 134 provides an IP for connecting to the Internet network 130 with the outgoing video call device 110 and the incoming video call device 112. Perform the function of assigning.

2 is a block diagram schematically showing a video call apparatus using a heterogeneous network according to an embodiment of the present invention.

The outgoing video call device 110 according to an embodiment of the present invention includes a short range communication unit 210, an internet network connection confirming unit 220, a mobile communication network control unit 230, and an internet network control unit 240. Meanwhile, in the present embodiment, the outgoing video call device 110 includes only the short range communication unit 210, the internet network connection confirming unit 220, the mobile communication network control unit 230, and the internet network control unit 240. However, this is merely illustrative of the technical idea of the present embodiment, and those of ordinary skill in the art to which the present embodiment belongs are included in the outgoing video call device 110 without departing from the essential characteristics of the present embodiment. The memory, display, key input unit, microphone, speaker, etc. may be variously modified and modified to be applied to the components to be added.

The local area communication unit 210 performs a function of accessing the Internet network through the AP 132 when there is an AP 132 recognized therein. The short range communication unit 210 checks whether there is an AP 132 that is recognized at a predetermined period, and if there is an AP 132 that is recognized around the check result, the IP from the IP allocation server 134 through the AP 132. It receives the function to access the Internet network 130. When the outgoing call for voice call is generated by the incoming video call device 112, the Internet network connection checking unit 220 connects the incoming call device 112 with the incoming video call device 112 together with the outgoing call using the mobile communication network 120. Sends a confirmation request message. The mobile communication network controller 230 determines that the incoming video call device 112 is connected to the Internet network 130 based on the Internet connection connection response message received from the incoming video call device 112. ) To connect the incoming call to the incoming video call device (112).

When an additional command is input while the call signal is connected, the internet network controller 240 transmits the acquired additional information to the incoming video call device 112 through the internet network 130. When the video call command according to the additional command is input, the internet network controller 240 transmits a video call consent request message to the incoming video call device 112, and receives the video call consent response received from the incoming video call device 112. As a result of checking the message, when the incoming video call device 112 agrees with the video call, the acquired video information is transmitted to the incoming video call device 112, and the video information received through the incoming video call device 112 is transferred. Performs a function to output on the screen connected with an incoming signal. When the live video sharing command according to the additional command is input, the internet network controller 240 shares the screen on which the captured video information or pre-stored video information is reproduced with the incoming video call device 112 through the internet network 130. It performs the function.

When a chat command according to an additional command is input, the internet network controller 240 outputs a chat window on a screen to which an outgoing call is connected, and receives incoming video call device through the internet network 130 through text information inputted in the chat window. 112) transmits and receives a function. When the phone number search command according to the additional command is input, the internet network controller 240 searches for a specific phone number through the internet network 130 and transmits the searched phone number to the incoming video call device 112. Performs a function of controlling the call device 112 to register the retrieved telephone number. When the multimedia data sharing command according to the additional command is input, the internet network controller 240 transmits the previously stored multimedia data to the incoming video call device 112 through the internet network 130 while the call signal is connected. do.

When the browser screen sharing command according to the additional command is input, the internet network controller 240 shares the connection screen of the separately driven browser with the incoming video call device 112 through the internet network 130 when the call signal is connected. Perform the function. When a favorite list transmission command according to an additional command is input, the internet network controller 240 outputs a favorite list of a browser driven while a call signal is connected, and receives the favorite list through the internet network 130. A function of transmitting to the call device 112 is performed. When the image generation command according to the additional command is input, the internet network controller 240 drives a separate image generation and editing program while the call signal is connected, and displays the image generated by the image generation and editing program on the internet network 130. It shares with the incoming video call device 112 through), and changes the generated image according to the modification command of the incoming video call device 112. The internet network controller 240 performs a function of outputting an additional menu for receiving additional information on the screen to which the call signal is connected.

3 is a flowchart illustrating a video call method using a heterogeneous network according to an embodiment of the present invention.

The outgoing video call device 110 checks whether the AP 132 located in the vicinity is recognized at regular intervals using the Internet network controller 240 provided separately, and if the AP 132 is recognized as a result of the check. The AP 132 is connected to the Internet network 130 (S310). When the outgoing video call device 110 generates an outgoing call for the voice call to the incoming video call device 112, the mobile video network 120 requests the incoming video call device 112 to check the Internet network connection with the outgoing call. The message is transmitted (S320). That is, when the telephone number corresponding to the incoming video call device 112 for voice call is input by the user's manipulation or command, the outgoing video call device 110 transmits an outgoing signal to the incoming video call device 112. . At this time, the outgoing video call device 110 checks whether the incoming video call device 112 is connected to the Internet network 130 and receives an Internet network connection confirmation request message for requesting connection to the Internet network. Will be sent together.

The incoming video call device 112 receives an outgoing call and an internet network connection confirmation request message from the outgoing video call device 110 via the mobile communication network 120, and according to the received internet network connection confirmation request message, the Internet network ( Check whether it is connected When the incoming video call device 112 is not connected to the Internet network 130 based on the check result, the incoming video call device 112 checks whether there is an AP 132 recognized nearby, and if there is an AP 132, After accessing to the Internet network 130 through the AP 132, the Internet network connection confirmation message is transmitted to the outgoing video call device 110 including whether the Internet network 130 is connected.

The outgoing video call device 110 receives an Internet network connection confirmation response message corresponding to the transmitted Internet network connection confirmation request message, and as a result of confirming the Internet network connection confirmation response message, the incoming video call device 112 is connected to the Internet network. Check whether the connection is confirmed (S330).

When it is determined in step S330 that the incoming video call device 112 is connected to the Internet network, the outgoing video call device 110 connects to the incoming video call device 112 using the mobile communication network 120. Control so as to (S340). On the other hand, when the incoming video call device 112 is not confirmed to be connected to the Internet network, the outgoing video call device 110 is the incoming video call device 112 so that only the voice call is possible using the mobile communication network 120 To be connected to That is, when the incoming video call device 112 is not confirmed that the incoming video call device 112 is connected to the Internet network, the calling video call device 110 does not perform a procedure for transmitting additional commands and additional information for a multimedia call including video.

The outgoing video call device 110 outputs an additional menu on the screen to which the call signal is connected by using the incoming video call device 112 and the mobile communication network 120 to receive additional information while the call signal is connected (S340). When the additional command through the additional menu is input, the outgoing video call device 110 transmits the additional information obtained according to the additional command to the incoming video call device 112 through the Internet network 130 (S350). For example, when a video call command according to an additional command is input, the outgoing video call device 110 transmits a video call consent request message to the incoming video call device 112 and receives from the incoming video call device 112. As a result of confirming the video call consent response message, when the incoming video call device 112 agrees to the video call, the acquired video information is transmitted to the incoming video call device 112, and the incoming video call device 112 is transmitted. The received image information may be output on a screen to which an outgoing signal is connected. In addition, when the live video sharing command according to the additional command is input, the outgoing video call device 110 shares the screen on which the captured video information or the previously stored video information is reproduced with the incoming video call device 112 through the Internet. can do. In addition, when a chat command according to an additional command is input, the outgoing video call device 110 outputs a chat window on a screen to which an outgoing call is connected, and receives incoming text information through the Internet network 130 through text information input in the chat window. The call device 112 may transmit / receive.

In addition, when a call number search command according to an additional command is input, the outgoing video call device 110 searches for a specific phone number through the Internet network 130 and transmits the found phone number to the incoming video call device 112. The incoming video call device 112 may be controlled to register the retrieved telephone number. In addition, when the multimedia data sharing command according to the additional command is input, the outgoing video call device 110 may transmit the pre-stored multimedia data to the incoming video call device 112 through the Internet network 130 in the state where the outgoing signal is connected. have. In addition, when the outgoing video call device 110 receives a browser screen sharing command according to an additional command, the incoming video call device 110 receives a connection screen of a browser separately driven in a state where an outgoing signal is connected through the Internet network 130. Can share with In addition, when the outgoing video call device 110 receives a favorite list transmission command according to an additional command, the outgoing video call device 110 outputs a favorite list of a browser driven while a call signal is connected, and the favorite list through the Internet network 130. May be transmitted to the incoming video call device 112. In addition, when the image generation command according to the additional command is input, the outgoing video call device 110 drives a separate image generation and editing program while the call signal is connected, and displays the image generated by the image generation and editing program on the Internet. The image may be shared with the incoming video call device 112 through a network, and the generated image may be changed according to a modification command of the incoming video call device 112.

In FIG. 3, although the outgoing video call device 110 sequentially executes steps S310 to S350, this is merely illustrative of the technical idea of the present embodiment, and is commonly known in the art. Those skilled in the art can vary the order in which the outgoing video calling device 110 is executed by changing the order described in FIG. 3 or executing one or more steps of steps S310 to S350 in parallel without departing from the essential characteristics of the present embodiment. 3 is not limited to the time-series order because it may be modified and modified. As described above, the video call method using the heterogeneous network according to the present embodiment described in FIG. 3 may be implemented in a program and recorded in a computer-readable recording medium.

A computer-readable recording medium having recorded thereon a program for implementing a video call method using a heterogeneous network according to the present embodiment includes all kinds of recording devices storing data that can be read by a computer system. Examples of such computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and are implemented in the form of a carrier wave (for example, transmission over the Internet). It includes being. The computer readable recording medium may also be distributed over a networked computer system so that computer readable code is stored and executed in a distributed manner. Also, functional programs, codes, and code segments for implementing the present embodiment may be easily inferred by programmers in the art to which the present embodiment belongs.

In the above description, all elements constituting the embodiments of the present invention are described as being combined or operating in combination, but the present invention is not necessarily limited to the embodiments. In other words, within the scope of the present invention, all of the components may be selectively operated in combination with one or more. In addition, although all of the components may be implemented in one independent hardware, each or all of the components may be selectively combined to perform some or all functions combined in one or a plurality of hardware. It may be implemented as a computer program having a. Codes and code segments constituting the computer program may be easily inferred by those skilled in the art. Such a computer program may be stored in a computer readable storage medium and read and executed by a computer, thereby implementing embodiments of the present invention. The storage medium of the computer program may include a magnetic recording medium, an optical recording medium, a carrier wave medium, and the like.

In addition, the terms "comprise", "comprise" or "having" described above mean that the corresponding component may be included, unless otherwise stated, and thus excludes other components. It should be construed that it may further include other components instead. All terms, including technical and scientific terms, have the same meanings as commonly understood by one of ordinary skill in the art unless otherwise defined. Terms commonly used, such as terms defined in a dictionary, should be interpreted to coincide with the contextual meaning of the related art, and shall not be construed in an ideal or excessively formal sense unless explicitly defined in the present invention.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, the present invention is applied to various fields for transmitting / receiving video through an internet network during a voice call through a mobile communication network so that a multimedia call including a high quality video can be used at a low cost. It is a useful invention to generate an effect of increasing the efficiency of the use of wireless data by sharing images and data.

1 is a block diagram schematically illustrating a video call system using a heterogeneous network according to an embodiment of the present invention;

2 is a block diagram schematically illustrating a video call apparatus using a heterogeneous network according to an embodiment of the present invention;

3 is a flowchart illustrating a video call method using a heterogeneous network according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: outgoing video call device 112: incoming video call device

120: mobile communication network 122: transmitter

124: exchange 130: Internet network

132: AP 134: IP allocation server

Claims (6)

A local area communication unit accessing an internet network through the AP when there is an AP recognized in the vicinity; An outgoing network connection confirmation unit for transmitting an internet connection connection request message to the destination terminal together with the outgoing signal using a mobile communication network when an outgoing signal for connecting a voice call to a called terminal occurs; When it is determined that the called terminal is connected to the internet network based on an internet network connection confirmation message received from the called terminal, a voice call is connected by transferring the outgoing signal to the called terminal using the mobile communication network. A mobile communication network controller; And When an additional command is input while the outgoing signal is connected, an internet network controller for transmitting additional information according to the additional command to the called terminal through the internet network. Multimedia communication device using a heterogeneous network, characterized in that it comprises a. The method of claim 1, The Internet network control unit, When the additional command is a video call command, when a video call consent request message is transmitted to the called terminal, and as a result of checking the video call consent response message received from the called terminal, the called terminal agrees to the video call. And transmitting the obtained video information to the called terminal, and outputting the video information received through the called terminal on a screen to which the call signal is connected. The method of claim 1, The Internet network control unit, And if the additional command is a live video sharing command, sharing the captured video information or the previously stored video information with the called terminal through the internet network. The method of claim 1, The Internet network control unit, And an additional menu for receiving the additional information on a screen to which the call signal is connected. The method of claim 1, The short-range communication unit, Check whether or not the AP is recognized at a predetermined period, and if the AP is recognized as a result of the check, heterogeneous, characterized in that the IP is allocated from the IP allocation server through the AP to access the Internet network Multimedia call device using network. A short-range communication step of accessing an internet network through the AP when there is an AP recognized in the vicinity; An internet network connection checking step of transmitting an internet network connection confirmation request message to the called terminal along with the calling signal using a mobile communication network when an outgoing signal for connecting a voice call to a called terminal occurs; When it is determined that the called terminal is connected to the internet network based on the internet network connection acknowledgment message received from the called terminal, the called signal is received using the mobile communication network. A mobile communication network control step of transmitting to a terminal so that a voice call is connected; And When an additional command is input while the outgoing signal is connected, an internet network control step of transmitting additional information according to the additional command to the called terminal through the internet network. Multimedia call method using a heterogeneous network comprising a.
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KR20180111033A (en) * 2017-03-31 2018-10-11 주식회사 하이시스테크놀로지 Device and method for bidirectional providing image information using bluetooth

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KR20180111033A (en) * 2017-03-31 2018-10-11 주식회사 하이시스테크놀로지 Device and method for bidirectional providing image information using bluetooth

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