WO2014014215A1

WO2014014215A1 - Method of sharing screens between user terminals through rcs mobile communication network

Info

Publication number: WO2014014215A1
Application number: PCT/KR2013/005889
Authority: WO
Inventors: 이종환; 차용주; 김현표; 이현송
Original assignee: 주식회사 케이티
Priority date: 2012-07-20
Filing date: 2013-07-03
Publication date: 2014-01-23
Also published as: KR20140018453A; KR101470346B1

Abstract

The present invention relates to a method of sharing screens between user terminals for providing rich communication suite (RCS) service that enables an area arbitrarily designated on a terminal screen to be shared during the use of a communication service such as calling and chatting between user terminals through a mobile communication network so that various pieces of multimedia information may be shared between the user terminals.

Description

Screen sharing method between user terminals through RCS mobile communication network

The present invention relates to a screen sharing method between user terminals. In particular, various multimedia information can be shared between user terminals by supporting an area designated by the terminal screen to be shared with the other party during a communication service between a user terminal such as a call or a chat through a mobile communication network. The present invention relates to a screen sharing method between user terminals for providing a Rich Communication Suite (RCS) service to be shared.

Attempts have been made to share digital multimedia information related to images, videos, document files and the like during voice calls. For example, Korean Patent Application No. 10-2005-0025511 establishes an additional session between user terminals during a voice call, so that information such as a video, photo, still image, etc. stored in one terminal may be transmitted through the Internet through the RTP (Real Time Transport Protocol) method. The sharing method is disclosed. In addition, the Republic of Korea Patent Application No. 10-2009-0100801 displays the map on both terminals at the request of any one of the two terminals during the voice call, calculate the GPS position value for the touched position and display the corresponding position on the other terminal The present invention discloses a method of identifying the destination route to each other. In addition, Korean Patent Application No. 10-2007-0071895 discloses a technology for realizing a whiteboard function on both terminals during a call so that each user can share a picture, text, etc. input by each user.

However, although the existing technologies such as the above support sharing of multimedia information during a voice call, the digital multimedia file itself is transmitted from one terminal to the other terminal, or simply some information (location value, whiteboard memo, etc.) of one terminal. Since only) is transmitted to the other terminal, there is a limit to conveying the emotion sufficiently as if talking to a nearby person.

Accordingly, an object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a counterpart that is arbitrarily designated by a terminal screen during a communication service between a user terminal such as a call or a chat through a mobile communication network without installing a separate application. And multimedia information (e.g. videos, maps, document files, web pages, whiteboards, notes, etc.) can be shared between users' terminals, allowing them to share rich emotions as if they are talking to someone nearby during a two-way conversation or chat. The present invention provides a screen sharing method between user terminals capable of supporting a Rich Communication Suite (RCS) service.

First, to summarize the features of the present invention, the screen sharing method according to an aspect of the present invention, in the screen sharing method between the user terminal on the mobile communication network, the synchronized for screen sharing between the user terminals connected to each other communication session Establishing another communication session; Transmitting image data for a shared area designated by the user in any shape on a screen through one of the user terminals through the other synchronized communication sessions; And receiving the image data at another terminal of the user terminals and displaying the image data on the screen.

A message received by a server on a network receiving a sharing request message from one of the user terminals during a connection of the communication session for voice call, video call, or instant messaging by requesting a response from another of the user terminals. The synchronized other communication session can be established.

If the message received from the other terminal is a message for rejecting screen sharing, the server controls to transmit the predetermined advertisement content managed in a database to the other terminal for display on the screen without setting up the other synchronized communication session. can do.

The server on the network setting up the other synchronized communication session transmits the image data to the other terminal, and converts the image data according to the resolution of the other terminal by referring to a database in which the terminal information of the user terminals is managed. Can transmit

The shared area may be a circular, square, triangular, or any other designated area that is designated as a touch on the touch screen or by moving a cursor on the screen with a moving key of the keyboard.

The other terminal generates a separate partitioned window other than the display window currently displayed on the screen and displays the image data as shown in the above shape, or displays the image data as shown in the shape at a predetermined position on the screen and displays the image already. You can display it on your desktop or on the display.

The other terminal displays the image data at the corresponding location as the user moves the window on the touch screen on which the image data is displayed by a touch or selects and moves the window on which the image data is displayed with a keyboard. can do.

According to the change of the image in the sharing area, the other terminal may display the change of the image data in real time.

An image of the sharing area may be displayed on the screen of the user terminals, and a point or a path touched by the users of the user terminal on the image of the sharing area may be displayed on the screen of the user terminals.

The map included in the sharing area may be displayed on the screen of the user terminals, and a point or a path touched by the users of the user terminals on the map may be displayed on the screen of the user terminals.

When the video is included in the sharing area, the corresponding audio data is also transmitted along with the image data, and the other terminal receiving the same may output the corresponding audio data together with the display of the image data.

During connection of the communication session for voice call, video call, or instant messaging, a server on a network that receives a whiteboard sharing request message from one of the user terminals requests and receives a response from another of the user terminals. The sharing area may be designated while establishing a communication session for whiteboard sharing according to a message, and while each whiteboard window of the user terminals for whiteboard sharing is displayed.

In each whiteboard window of the user terminals, a point or path touched by the user is shared and displayed on the screen of the user terminals, or a web page or file (image) loaded in the whiteboard window respectively in the user terminals. , Video, or document) may be shared and displayed on the screen of the user terminals.

The user terminals may load and share a file stored in another server on a network in the whiteboard window, and the work performed on the file may be updated and stored in the other server.

During connection of the communication session for voice call, video call, or instant messaging through interworking with networks of different carriers, each of the different carriers on the network receiving a sharing request message from any one of the user terminals. The server may establish another synchronized communication session according to a message received by requesting a response from another terminal among the user terminals.

Each server may convert and transmit the image data according to the resolution of the other terminal by referring to a database in which terminal information of the other terminal registered in its network is managed.

According to another aspect of the present invention, a mobile communication terminal includes: means for generating and transmitting a sharing request message for screen sharing with another terminal on a mobile communication network to which a communication session is connected; And as the server on the network receiving the sharing request message sets up another communication session synchronized with the received message by requesting a response from the other terminal, the image data of the sharing area designated by the user in an arbitrary shape on the screen. And means for generating and transmitting the image data from the other terminal to display the image of the sharing area on a screen, and the image of the sharing area may be shared and displayed on the screen of the user terminals. .

According to the screen sharing method between user terminals according to the present invention, by supporting a variety of multimedia information between the user terminal during the communication service between the user terminal, such as a call, chat, so as to share the multimedia experience at the same time, through the content sharing family, acquaintances You can improve your relationship with each other, and you can easily grasp the interests of your friends in real time, and support RCS services so that you can share rich emotions as if you are talking with someone nearby even during two-way conversation or chat.

In addition, it is possible to provide a rich mobile communication environment through a seamless high quality RCS service even for a large amount of multimedia data traffic, and may provide a convenient advertising environment for users and advertisers by interworking with the advertising service linked with the advertiser.

1 is a diagram illustrating a mobile communication network environment for an RCS service according to an embodiment of the present invention.

2 is a flowchart illustrating a screen sharing method through an RCS service according to an embodiment of the present invention.

3 is a view for explaining an example of the screen share of FIG.

FIG. 4 is a diagram for explaining map sharing as the screen share of FIG. 2.

FIG. 5 is a diagram for describing video sharing as the screen share of FIG. 2.

6 is a flowchart illustrating a screen sharing method among whiteboard functions through an RCS service according to another embodiment of the present invention.

FIG. 7 is a diagram for describing a whiteboard function of FIG. 6.

FIG. 8 is a diagram for describing a screen share among the whiteboard functions of FIG. 6.

9 is a flowchart illustrating a screen sharing method when interworking with a third party network according to another exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments.

1 is a diagram illustrating a mobile communication network environment for a Rich Communication Suite (RCS) service according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication system 100 according to an embodiment of the present invention interworks with a mobile communication network 140 including an RCS server 141 and an IMS (IP Multimedia Subsystem) server 142. It includes the user terminal (110, 120) receiving a mobile communication service through the base station 111 or the AP (Access Point) 112, the mobile communication service through any mobile communication network 140 of such a carrier The

user terminals

110 and 120 receiving the call are connected to the mobile communication network 150 of another telecommunication company through interworking between the

networks

140 and 150, and the user terminal 130 also receives a mobile communication service. All communication services between terminals such as messaging and text messaging (SMS, MMS, etc.) can be used. The mobile communication network 150 of another communication company may also include an RCS server 151 and an IMS server 152, and the user terminals 130 may access a base station 131 or an AP that interworks with its network 150. Through 132, a mobile communication service may be provided.

Herein, the

mobile communication networks

140 and 150 interworking with each other are 3G (WCDMA) / 4G (LTE) mobile communication operated by a mobile telecommunication company and a network supporting Internet communication according to IP (Internet Protocol). , Mobile communication network). The IMS server 142/152 having a gateway proxy and the like can be extended to interwork with the RCS server 141/151. The IMS server 142/152 stores messages, contents, data, etc. exchanged between user terminals during the screen share of the present invention. It can retransmit in case of failure. In addition, the user terminal (s) referred to in the present invention can be provided with a mobile communication service by accessing a network for 3G (WCDMA) / 4G (LTE) mobile communication through a base station, or Wi-Fi (WiFi: Wireless) through the AP A mobile communication terminal capable of data communication by supporting the wireless Internet according to the Fidelity protocol, which may include a smartphone, an iPhone, and the like, and is not only a terminal capable of such two types of communication but also 3G (WCDMA) or 4G in some cases. (LTE) may be a mobile communication terminal that can receive only mobile communication services, or may be a mobile communication terminal that can receive only wireless Internet services through the AP.

Particularly, in the present invention, after establishing another synchronized communication session for screen sharing between user terminals (two or more terminals) connected to each other such as voice call, video call, or instant messaging, one of the user terminals In another terminal of the user terminals, the terminal transmits the image data for the shared area designated by the user in any shape (circular, square, triangular, or any other shape) on the screen through the other synchronized communication session. The image data can be received and displayed on the screen.

During connection of a communication session between user terminals for voice call, video call, or instant messaging, any one of the user terminals (eg, the caller) may share the screen with another terminal on the mobile communication network through a predetermined means. It generates and transmits a sharing request message for the network, and an RCS server (communication server of each network when interworking with its own server or another communication company) on the network receiving the sharing request message receives a response from another terminal (eg, called party) among user terminals. The synchronized other communication session may be established according to the request and the received message. Accordingly, the terminal (eg, the sender) that has transmitted the sharing request message may generate and transmit image data through a predetermined means to the sharing area designated by the user in an arbitrary shape on the screen. Receiving the video data from the called party and displaying the image of the sharing area on the screen, and the image of the sharing area is shared and displayed on the screen of the user terminals, thereby sharing the image of the same sharing area in real time. You can do it.

According to the screen sharing method between the user terminals, the multimedia experience is supported by allowing various multimedia information to be shared among the user terminals during a communication service between user terminals such as voice call, video call, or instant messaging (messenger, katok, etc.). Share content with others, improve content relationships with family and acquaintances, and share your interests in real-time and conveniently, sharing rich emotions as if you're talking to someone nearby during a two-way conversation or chat. It can support RCS service. In addition, it is possible to provide a rich mobile communication environment through a seamless high quality RCS service even for a large amount of multimedia data traffic, and may provide a convenient advertising environment for users and advertisers by interworking with the advertising service linked with the advertiser.

Hereinafter, the screen sharing method through the mobile communication network 140/150 in the mobile communication system 100 according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 9.

2 is a flowchart illustrating a screen sharing method through an RCS service according to an embodiment of the present invention. Here, the screen sharing method between the user A terminal 110 and the user B terminal 120 using the mobile communication network 140 will be described.

First, a communication session for a voice call, a video call, or an instant messaging (messenger, katok, etc.) is connected between the user A terminal 110 and the user B terminal 120. Any one of the user A terminal 110 and the user B terminal 120 may be a caller or a called party terminal without distinction.

At this time, while the communication session is in the connected state, the user of the user A terminal 110 designates a sharing area to be screen-shared with the user B terminal 120 (S110). For example, when the screen of the user A terminal 110 is a touch screen, the user may designate a sharing area in a circular, square, triangle, or other arbitrary shape by a touch on the touch screen, and the user A terminal 110 If the screen is not a touch screen, the user can move the cursor on the screen with the navigation keys of the keyboard (mechanical or on-screen keyboard) to designate the shared area in a circle, rectangle, triangle, or other arbitrary shape (dotted line in FIG. 3). Circular share area). In this case, the user can designate a sharing area avoiding an area where personal information not to be shared with the user B terminal 120 is displayed on the screen, so that the private secret of the individual can be protected for the personal information display area other than the sharing area.

Accordingly, the predetermined means of the user A terminal 110 may generate and transmit a sharing request message for screen sharing with the user B terminal 120 (S111). Here, an example is described in which the sharing request message is transmitted after the region designation (S110) (S111). However, in some cases, the region designation is received after receiving the acceptance message (S113). (S110) may be made. As such, when the user A terminal 110 generates and transmits a sharing request message, the RCS server 141 receives the request and delivers the shared request message to the user B terminal 120 to request a response.

The user B terminal 120 receiving the sharing request message from the RCS server 141 may be displayed as "accept sharing request?", Etc., and the user may answer 'yes' or 'no' in the terminal. The user B terminal 120 may transmit a corresponding response (accept / deny) message, and thus the corresponding response (accept / deny) message is transmitted to the user A terminal 110 through the RCS server 141. It may be (S112).

In this case, if the response message indicates acceptance (S113), the RCS server 141 may establish another synchronized communication session for screen sharing between the user A terminal 110 and the user B terminal 120 (S120). If the response message indicates rejection (S113), the RCS server 141 does not establish a communication session for screen sharing and the user A terminal 110 and the user B terminal 120 maintain the call state while maintaining the existing screen. In some cases, the RCS server 141 may control to transmit the schedule advertisement content managed in the database to the user B terminal 120 to display on the screen (S114). To this end, the RCS server 141 may store and manage advertisement contents such as a predetermined image and a video (including audio) registered by an advertiser in a database, and the user B terminal 120 may manage various advertisement contents of advertisers according to a predetermined policy. Can be sent to. The user B terminal 120 displays the advertisement content by generating a separate partitioned window other than the display window currently displayed on the screen, or displays the advertisement content at a predetermined position on the screen, and the desktop which has already been displayed, or It can also be displayed on the display.

Meanwhile, while the synchronized communication session for screen sharing between the user A terminal 110 and the user B terminal 120 is established and maintained by the RCS server 141, the predetermined means of the user A terminal 110 are as described above. The image data of the shared area on the screen designated as an arbitrary shape may be generated and transmitted (S121), and the RCS server 141 may receive it and transmit it to the user B terminal 120 (S123). However, before transmitting the image data received from the user A terminal 110 to the user B terminal 120, the RCS server 141 may display the corresponding image in a form that can be displayed on the terminal according to the resolution of the user B terminal 120. Data may be converted (S122). For example, the RCS server 141 collects each terminal profile information (eg, terminal number, terminal model, CPU performance, serial number, resolution, etc.) of subscribers through a terminal management system on a network, and manages the database. In operation S122, the user B terminal 120 may convert the image data into data corresponding to a resolution lower than or equal to the resolution that can be displayed (S122) and transmit the same to the user B terminal 120 (S123). .

Accordingly, the user B terminal 120 may receive the corresponding image data and display the image of the corresponding shared area on the screen (S124). As such, the image of the sharing area is shared and displayed on the screens of the

user terminals

110 and 120, so that the image of the same sharing area may be shared in real time (S130).

The user B terminal 120 that receives and displays the image data from the user A terminal 110 has a shape (circular or square) designated by the user A terminal 110 at the predetermined position of the screen as shown in FIG. 3. , Triangles, or any other shape) can be displayed (overlapping) on the desktop that was already displayed, or on another display. In addition, the user B terminal 120 generates a separate partitioned window (deletable window) other than the display window currently displayed on the screen, and displays the corresponding image data in the same shape as that specified in the user A terminal 110. Can be displayed.

In addition, while the shared area is shared and displayed on the user A terminal 110 and the user B terminal 120 as described above, the user B terminal 120 freely moves the window on the touch screen on which the corresponding shared area is displayed. Can be made (S140). For example, the user can move a window on the touch screen on which the corresponding shared area is displayed by touching it to move to another position where the touch ends. Alternatively, if the touch screen is not a touch screen, the window is selected by using a predetermined key on the keyboard. By moving to (up, down, left, and right arrow keys), it can be moved to a desired position, and thus image data can be displayed at the corresponding position.

As such, while the synchronized communication session for screen sharing between the user A terminal 110 and the user B terminal 120 is established and maintained, an image (eg, a video) in the corresponding sharing area of the user A terminal 110 is maintained. ) Can be changed, so that the user A terminal 110 directly transmits the image data of the corresponding shared area so that the change of the corresponding image is immediately reflected on the real-time user B terminal 120 and displayed.

Even if the video is not a video, each user of the user A terminal 110 and the user B terminal 120 may be touched or extended by a point or finger through a finger or a stylus on a window (or image) on which an image of the corresponding shared area is displayed. A touch or the like may be performed, and thus a corresponding touch point or a touch path may be displayed on the screen of the user A terminal 110 and the user B terminal 120 at the same time.

For example, as shown in FIG. 4, while displaying a map on the screen, the user A terminal 110 may designate all or a portion of the map as a shared area, so that the map included in the shared area is a user. A point or a touch path that each user of terminal A 110 and terminal B 120 touches on a corresponding map image may be displayed on a screen of terminal A 110 and terminal B 120. It can be displayed on the screen of each user terminal. According to the map screen share as described above, while performing a voice call, a video call, or an instant messaging, the map is spread out next to the user and thus, the user can receive the guidance of the appointment place more conveniently.

In addition, as shown in FIG. 5, when the video is included in the sharing area designated by the user A terminal 110, the user A terminal 110 may also transmit the corresponding audio data when the corresponding video data is transmitted. The receiving user B terminal 120 also outputs the corresponding audio data together with the display of the corresponding image data, thereby making it possible to make a call while simultaneously listening to music included in the video.

On the other hand, the IMS server 142/152 having a gateway proxy or the like can be extended to work with the RCS server 141/151, the IMS server 142/152 is the user terminal (s) during the performance of the screen share function as described above ( 110, 120, 130 may store a message, content, data, etc. sent and received between the retransmission in the case of a temporary failure (S150). For example, when all or some of the

user terminals

110, 120, 130 are temporarily turned off due to a power off or a failure in the network, the IMS server ( 142/152 requests the RCS server 141/151 to re-establish the synchronized communication session for screen sharing as described above between the user A terminal 110 and the user B terminal 120 so that the RCS server 141/151 May control to allow the corresponding synchronized communication session for existing screen sharing to take place. When the session is restored, the IMS server 142/152 returns messages, contents, data, etc., which have occurred in the

user terminals

110, 120, and 130, but failed to be transmitted to the corresponding terminal during power off or network failure. I can send it.

6 is a flowchart illustrating a screen sharing method among whiteboard functions through an RCS service according to another embodiment of the present invention. Here, a method of screen sharing while sharing the whiteboard function between the user A terminal 110 and the user B terminal 120 using the mobile communication network 140 will be described.

At this time, while the communication session is in the connected state, the user of the user A terminal 110 executes the whiteboard function of the user A terminal 110 to share writing with the user B terminal 120 through the whiteboard window. Or, you can import web pages, documents, images, and more to share and collaborate with each other. The user selects a whiteboard function through an icon or a menu in the user A terminal 110, so that the user A terminal 110 drives a means for the whiteboard function to display a whiteboard window on the screen as shown in FIG. If necessary, a keyboard window may also be displayed for editing the document file loaded on the whiteboard as necessary (S210). As described above, after the whiteboard window is displayed or by a user's menu selection, the predetermined means of the user A terminal 110 may generate and transmit a sharing request message for sharing the whiteboard with the user B terminal 120 (S211). ). Here, an example of transmitting a whiteboard sharing request message after display of the whiteboard window is described as an example. However, in some cases, after receiving a whiteboard sharing request message (S211) and receiving an acceptance message described below (S212). A whiteboard window may be displayed. As described above, when the user A terminal 110 generates and transmits a whiteboard sharing request message, the RCS server 141 receives the request and delivers it to the user B terminal 120 to request a response.

The user B terminal 120 receiving the sharing request message from the RCS server 141 may be displayed as "Accept whiteboard sharing request?", Etc., and the user may select 'yes' (accept) or 'no' ( User B terminal 120 may transmit a corresponding response (accept / deny) message, so that the corresponding response (accept / deny) message may be transmitted through the RCS server 141. It may be transmitted to (S212). In this case, if the response message indicates acceptance, the whiteboard window is also displayed on the screen of the user B terminal 120 (S213), and the RCS server 141 shares the white board between the user A terminal 110 and the user B terminal 120. By setting up another synchronized communication session for the user (S220), the user A terminal 110 and the user B terminal 120 is in real time interlocked with the whiteboard window to display the same content.

Meanwhile, while the synchronized communication session for whiteboard sharing is established between the user A terminal 110 and the user B terminal 120 by the RCS server 141, as shown in FIG. In each whiteboard window of the terminal 110 or the user B terminal 120, a point or a path touched by the user may be shared and displayed on the screen of the user terminals (S221). That is, when the user writes by touch, the meeting or discussion is possible while viewing the same content that is shared and written on the screen of the user terminals. In addition, users can load and share files (including images, videos, or documents) in a whiteboard window at each user terminal, and can also share web pages by displaying them. Importing a file (including an image, a video, or a document) may be a file (including an image, a video, or a document) stored in each user terminal, or a file stored in an IMS server 142 which is a cloud server. It may be. The web page retrieval may be displayed in a whiteboard window by retrieving it via the Internet by inputting a uniform resource locator (URL) in a predetermined window.

In particular, it is possible to collaborate by bringing up the editable document file. For this purpose, for example, the user A terminal 110 may search for shared files stored in the IMS server 142 and request a necessary file (S230). Accordingly, the IMS server 142 transmits the file to the RCS server 141 (S231), the RCS server 141 transmits the file to the user A terminal 110 (S232), and the user B terminal 120 ) Can also be transmitted to the file (S233), so that it can be shared and displayed on the screen of the user terminals. As shown in FIG. 8, while the user terminals load and share a file of the IMS server 142 by interworking between the RCS server 141 and the IMS server 142 on the network in each whiteboard window, each user has a corresponding document file ( For example, you can work on TXT, WORD, HWP, PDF, EXCEL, etc. (eg, add, edit, change, edit, etc.), and the work history is linked to the RCS server 141 and the IMS server 142 with IMS. The server 142 may be updated and stored in the corresponding file (S240).

On the other hand, while such a whiteboard window is shared to each user terminal, screen sharing is possible by designating a sharing area as described with reference to FIG. 2 (S250). That is, while a communication session between user terminals for voice call, video call, or instant messaging is connected, and a session in which the whiteboard function is shared is connected, any one of the user terminals, Through a predetermined means, a sharing request message for screen sharing with other terminals on the mobile communication network may be generated and transmitted. In addition to the whiteboard window, there may be another window displaying a video, an image, a web page, etc. on the screen of the terminal that transmits the sharing request message, and the user requests to share a certain area of the screen with the other terminal. to be. The RCS server (communication server of each network when interworking with its own server or another communication company) on the network receiving the sharing request message requests the response of the other terminal among the user terminals to the other synchronized communication session according to the received message. Can be set. Accordingly, the terminal that has transmitted the sharing request message may generate and transmit image data to a sharing area designated by the user in a random shape on a screen through a predetermined means. By receiving data and displaying an image of the sharing area on the screen, and the image of the sharing area is shared and displayed on the screen of the user terminals, it is possible to share the image for the same sharing area in real time.

9 is a flowchart illustrating a screen sharing method when interworking with a third party network according to another exemplary embodiment of the present invention. Here, the screen sharing method between the user A terminal 110 using the mobile communication network 140 of the company and the user B terminal 130 using the mobile communication network 150 of the other company will be described. Here, the interworking between the RCS server 141 and the RCS server 151 is added, and the rest of the process is similar to that of FIG. In addition, the interworking process between the RCS server 141 and the RCS server 151 may be similarly applied to the realization of the whiteboard function as shown in FIG. 6.

For example, a communication session for voice call, video call, or instant messaging (messenger, katok, etc.) is connected between user A terminal 110 and user B terminal 130. Any one of the user A terminal 110 and the user B terminal 130 may be a caller or a called party terminal without distinction.

At this time, while the communication session is in the connected state, the user of the user A terminal 110 designates a sharing area (circular, square, triangular, or other arbitrary shape) to be screen-shared with the user B terminal 130 ( S310). In this case, the user may designate a sharing area avoiding an area where personal information that is not desired to be shared with the user B terminal 130 is displayed on the screen, so that a private secret of the individual may be protected for the personal information display area other than the sharing area.

Accordingly, the predetermined means of the user A terminal 110 may generate and transmit a sharing request message for screen sharing with the user B terminal 130 (S311). Herein, an example is described in which a sharing request message is transmitted (S311) after region designation (S310). However, in some cases, an area is designated after receiving an acceptance message (S312). (S310) may be made. When the user A terminal 110 generates and transmits a sharing request message as described above, the RCS server 141 receives this and transmits it to the RCS server 151 of the other company, and the RCS server 142 transmits it to the user B terminal ( And request a response.

The user B terminal 130 receiving the sharing request message from the RCS server 151 may be displayed as "accept sharing request?", Etc., and the user may answer 'yes' or 'no' in the terminal. The user B terminal 130 may transmit a corresponding response (accept / deny) message by selecting the corresponding message, and thus the corresponding response (accept / deny) message may be transmitted to the user A through the RCS server 151 and the RCS server 141. It may be transmitted to the terminal 110 (S312).

In this case, if the response message indicates acceptance, another synchronized communication session for screen sharing between the user A terminal 110 and the user B terminal 130 may be established by interworking with each of the

RCS servers

141 and 151 of different telecommunication companies. There is (S320). If the response message indicates the rejection, the RCS server 151 may control to display certain advertisement content managed in a database to the user B terminal 130 for display on the screen without establishing a communication session for screen sharing. (See Figure 2).

Meanwhile, while the synchronized communication session for screen sharing between the user A terminal 110 and the user B terminal 130 is established and maintained by the

RCS servers

141 and 151, predetermined means of the user A terminal 110 are maintained. May generate and transmit the image data for the shared area on the screen designated as an arbitrary shape as described above (S321), and the

RCS servers

141 and 151 may receive it and transmit it to the user B terminal 130 (S323). ). However, before the RCS server 151 transmits the image data received from the user A terminal 110 to the user B terminal 130 registered in the company network, the RCS server 151 displays the terminal according to the resolution of the user B terminal 130. The image data may be converted in a possible form (S322). For example, the RCS server 151 collects terminal profile information (eg, terminal number, terminal model, CPU performance, serial number, resolution, etc.) of subscribers through a terminal management system on a network, and manages the database. With reference to this, after the user B terminal 130 converts the image data into data corresponding to a resolution lower than or equal to the displayable resolution (S322), the user B terminal 130 may transmit the image data to the user B terminal 130 (S323). .

Accordingly, the user B terminal 130 may receive the image data and display the image of the corresponding shared area on the screen (S324). As such, the image of the sharing area is shared and displayed on the screens of the

user terminals

110 and 130, thereby enabling sharing of the image of the same sharing area in real time (S330).

User B terminal 130 for receiving and displaying the image data from the user A terminal 110, as shown in Fig. 3, the shape (circular, square) specified by the user A terminal 110 to the corresponding video data at a predetermined position of the screen , Triangles, or any other shape) can be displayed (overlapping) on the desktop that was already displayed, or on another display. In addition, the user B terminal 130 generates a separate partitioned window (deletable window) other than the display window currently displayed on the screen, and displays the corresponding image data in the same shape as that specified in the user A terminal 110. Can be displayed.

In addition, while the shared area is shared and displayed on the user A terminal 110 and the user B terminal 130 as described above, the user B terminal 130 freely moves the window on the touch screen on which the corresponding shared area is displayed. Can be made (S340). For example, the user can move a window on the touch screen on which the corresponding shared area is displayed by touching it to move to another position where the touch ends. Alternatively, if the touch screen is not a touch screen, the window is selected by using a predetermined key on the keyboard. By moving to (up, down, left, and right arrow keys), it can be moved to a desired position, and thus image data can be displayed at the corresponding position. A more detailed description is as described with reference to FIG. 2.

Here, the IMS server 142/152 having a gateway proxy or the like can be extended to interwork with the RCS server 141/151, and the IMS server 142/152 can perform the user terminal (s) while performing the screen sharing function as described above. 110, 120, 130 may store a message, content, data, etc. sent and received between the retransmission in the case of a temporary failure (S150). For example, when all or some of the

user terminals

110, 120, 130 are temporarily turned off due to a power off or a failure in the network, the IMS server ( 142/152 requests the RCS server 141/151 to reestablish the synchronized communication session for screen sharing as described above between the user A terminal 110 and the user B terminal 130 so that the RCS server 141/151 May control to allow the corresponding synchronized communication session for existing screen sharing to take place. When the session is restored, the IMS server 142/152 returns messages, contents, data, etc., which have occurred in the

user terminals

110, 120, and 130, but failed to be transmitted during power off or network failure. In particular, it can be transmitted to a terminal registered (subscribed) in its network.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible. For example, although the screen sharing method for performing the respective functions for the user A terminal 110 and the user B terminal 120/130 has been described, the user A terminal 110 or the user B terminal 120/130 is described. Means for performing each function may be included in all the user terminals (110, 120, 130) to operate. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

Claims

In the screen sharing method between user terminals on a mobile communication network,

Establishing another synchronized communication session for screen sharing between user terminals connected to each other;

Transmitting image data for a shared area designated by the user in any shape on a screen through one of the user terminals through the other synchronized communication sessions; And

Receiving the image data from the other terminal of the user terminal and displaying on the screen

Screen sharing method comprising a.
The method of claim 1,

A message received by a server on a network receiving a sharing request message from one of the user terminals during a connection of the communication session for voice call, video call, or instant messaging by requesting a response from another of the user terminals. And establishing another synchronized communication session according to the method.
The method of claim 2,

If the message received from the other terminal is a message for rejecting screen sharing, the server controls to transmit the predetermined advertisement content managed in a database to the other terminal for display on the screen without setting up the other synchronized communication session. Screen sharing method characterized in that.
The method of claim 1,

The server on the network setting up the other synchronized communication session transmits the image data to the other terminal, and converts the image data according to the resolution of the other terminal by referring to a database in which the terminal information of the user terminals is managed. Screen sharing method characterized in that the transmission.
The method of claim 1,

And said sharing area is a circular, square, triangular, or any other designated area designated by a touch on a touch screen or by moving a cursor on the screen with a moving key of a keyboard.
The method of claim 1,

The other terminal generates a separate partitioned window other than the display window currently displayed on the screen and displays the image data as shown in the above shape, or displays the image data as shown in the shape at a predetermined position on the screen and displays the image already. The screen sharing method characterized by displaying on the desktop or the display window was used.
The method of claim 1,

The other terminal displays the image data at the corresponding location as the user moves the window on the touch screen on which the image data is displayed by a touch or selects and moves the window on which the image data is displayed with a keyboard. Screen sharing method characterized in that.
The method of claim 1,

And sharing the change of the image data in the other terminal in real time according to the change of the image in the sharing area.
The method of claim 1,

An image of the sharing area is displayed on the screen of the user terminals, and a point or a path touched by the users of the user terminal on the image of the sharing area is displayed on the screen of the user terminals. Way.
The method of claim 1,

A map included in the sharing area is displayed on the screen of the user terminals, and a point or a path touched by the users of the user terminals on the map is displayed on the screen of the user terminals. .
The method of claim 1,

And when the video is included in the sharing area, the corresponding audio data is also transmitted along with the image data, and the other terminal receiving the same outputs the corresponding audio data together with the display of the image data.
The method of claim 1,

During connection of the communication session for voice call, video call, or instant messaging, a server on a network that receives a whiteboard sharing request message from one of the user terminals requests and receives a response from another of the user terminals. And establishing a communication session for whiteboard sharing according to one message, wherein the sharing area is designated while each whiteboard window of the user terminals for whiteboard sharing is displayed.
The method of claim 12,

In each whiteboard window of the user terminals, a point or path touched by the user is shared and displayed on the screen of the user terminals, or a web page or file (image) loaded in the whiteboard window respectively in the user terminals. , Video, or document.) Is shared and displayed on the screen of the user terminals.
The method of claim 12,

And sharing a file stored in another server on a network in the whiteboard window in the user terminals, and the work done on the file is updated and stored in the other server.
The method of claim 1,

During the connection of the communication session for voice call, video call, or instant messaging, in conjunction with a network of different carriers,

Each server of the different telecommunication companies on the network receiving a sharing request message from one of the user terminals requests the response of the other one of the user terminals in cooperation to establish another synchronized communication session according to the received message. Screen sharing method characterized in that the setting.
The method of claim 15,

Wherein each server converts the image data according to the resolution of the other terminal by referring to a database in which terminal information of the other terminal registered in its network is managed.
Means for generating and transmitting a sharing request message for screen sharing with other terminals on a mobile communication network to which a communication session is connected; And

As the server on the network receiving the sharing request message sets up another communication session synchronized according to the received message by requesting a response from the other terminal, the user generates image data of the sharing area designated by the user in a random shape on the screen. Means for transmitting by

And receiving the image data from the other terminal to display the image of the sharing area on a screen, and the image of the sharing area is shared and displayed on the screen of the user terminals.