KR20100019265A - System and method for video telephony chatting in different networks - Google Patents
System and method for video telephony chatting in different networks Download PDFInfo
- Publication number
- KR20100019265A KR20100019265A KR1020080078205A KR20080078205A KR20100019265A KR 20100019265 A KR20100019265 A KR 20100019265A KR 1020080078205 A KR1020080078205 A KR 1020080078205A KR 20080078205 A KR20080078205 A KR 20080078205A KR 20100019265 A KR20100019265 A KR 20100019265A
- Authority
- KR
- South Korea
- Prior art keywords
- terminal
- chat
- sip
- message
- video
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/08—Upper layer protocols
- H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
Abstract
Description
The present invention relates to a video communication system and method, and more particularly, to a video chat system and method interworking in a heterogeneous video communication network that performs video chat by interworking video protocol terminals based on different protocols.
Wireless mobile communication technology has developed into GSM, GPRS, and WCDMA networks standardized at the 3rd Generation Partnership Projects (3GPP) International Standardization Conference, and IS-95A, IS95-B, CDMA 2000 1x and CDMA 1x-EVDO networks have been developed. Among these wireless mobile communication technologies, in the case of the IMT-2000 network, the synchronous IMT-2000 is called CDMA 2000 1x-EVDO, and the asynchronous IMT-2000 is called WCDMA.
Here, for video telephony service, WCDMA network is provided based on wired circuit network, and part of ITU-T H.324 protocol standard is changed to 3GPP standardization organization for wireless circuit network and standardized to 3G-324M protocol standard. On the other hand, in the CDMA 2000 1x-EVDO network, the ITU-T H.323 protocol standard used in the wired packet network is used for the wireless packet network without a separate standard in the wireless network.
On the other hand, SIP (Session Initiation Protocol) based provides a video call service that integrates a synchronous network and an asynchronous network. Web phones are in the spotlight as the next generation technology because they provide a video call service using an existing packet data network and are inexpensive and can create new services in combination with computer technology.
However, since video communication networks are implemented as different protocol based sub-networks by different operators, subscribers who subscribe to video call service provided based on one sub-network can try to make video calls to subscribers to other sub-networks. In this case, there has been a problem of implementing interworking between networks based on different protocols.
Therefore, recently, interworking technology has been developed between heterogeneous video communication networks which perform video calls between terminals belonging to heterogeneous video communication networks and perform video telephony chatting (VTC) for exchanging text-based messages during video calls.
Accordingly, a first object of the present invention is to provide an image chat system and method interoperating in a heterogeneous communication network that performs text-based message transfer between a SIP terminal and a 3G-324M terminal.
A second object of the present invention is to provide a video chat system and method interworking in a heterogeneous communication network capable of quickly exchanging video chat capability between a SIP terminal and a 3G-324M terminal.
In order to achieve the above object, the present invention provides a video chat system interoperating in a heterogeneous video communication network comprising a 3G-324M terminal, a SIP terminal and a converter. The 3G-324M terminal establishes a session based on the WCDMA network. The SIP terminal establishes a session based on the SIP network. The translator relays the connection between the 3G-324M terminal and the SIP terminal in which a session is established based on an IMS network. In particular, the converter comprises a receiver, a storage, a transmitter and a controller. The receiving unit receives an image chat request message requesting a video chat with the SIP terminal from the 3G-324M terminal. The storage unit stores the chat capability of the 3G-324M terminal included in the video chat request message. The transmitter converts the image chat request message into a first option message and transmits the image chat request message to the SIP terminal. When the control unit receives a second option message requesting the chatting capability of the 3G-324M terminal from the SIP terminal through the receiving unit, the controller transmits the chatting capability of the stored 3G-324M terminal as a second response message through the transmission unit. Send to the SIP terminal.
In addition, the converter may include a receiver, a transmitter, and a controller. The receiving unit receives a first option message for requesting a chatting capability of the 3G-324M terminal for video chatting with the 3G-324M terminal from the SIP terminal. The transmission unit transmits a second option message to the SIP terminal requesting transmission of the chat capability of the SIP terminal. The controller receives the chat capability of the SIP terminal through the receiver through a first response message to the second option message from the SIP terminal, and includes a chat capability of the SIP terminal. Send a message to the 3G-324M terminal.
Meanwhile, the present invention also provides a video chat method between a 3G-324M terminal and a SIP terminal in which a converter and a session are established. First, the converter receives an image chat request message requesting an image chat with the SIP terminal from the 3G-324M terminal. Next, the converter stores the chat capability of the 3G-324M terminal included in the video chat request message. Next, the converter converts the image chat request message into a first option message and transmits the message to the SIP terminal. The converter then receives a second option message from the SIP terminal requesting the chat capability of the 3G-324M terminal. And the converter transmits the chat capability of the stored 3G-324M terminal to the SIP terminal through a second response message.
Meanwhile, the present invention also provides a video chat method between a 3G-324M terminal and a SIP terminal in which a converter and a session are established. First, the converter receives a first option message requesting a chat capability of the 3G-324M terminal for video chatting with the 3G-324M terminal from the SIP terminal. Next, the converter transmits a second option message to the SIP terminal requesting transmission of the chat capability of the SIP terminal. The converter then receives the chat capability of the SIP terminal from the SIP terminal via a first response message to the second option message. The converter performs a process of transmitting an image chat request message of the SIP terminal including the chat capability of the SIP terminal to the 3G-324M terminal.
According to the present invention, it is possible to perform video chat for text-based message transmission between a heterogeneous communication network, for example, a SIP terminal based on a SIP network (wired internet network) and a 3G-324M terminal based on a WCDMA network (wireless internet network). It has the effect of making it work.
In addition, when the 3G-324M terminal requests a video chat, the converter stores the chat capability of the 3G-324M terminal and then sends the chat capability of the stored 3G-324M terminal to the SIP terminal when the 3G-324M terminal requests the transmission of the chat capability. When the SIP terminal requests a video chat, the converter requests and transmits a chat capability to the SIP terminal, and then sends a video chat request message to the 3G-324M terminal to the 3G-324M terminal. After exchanging the video chat capability between the terminal and the 3G-324M terminal quickly, there is an effect that the image chat can be performed through the exchange.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Video chat system
As shown in FIGS. 1 and 2, the
Each of the 3G-
The
The WCDMA
The
In addition, the
In particular, the
Here, the chat capability is expressed as Session Description Protocol (SDP), and includes the number of supported versions and supported versions. For example, the chat capability may be expressed in the form of [number of supported versions] [_] [supported versions]. Where [number of supported versions] specifies the number of chat capabilities that he supports, up to five can be specified. [Supported version] is set as the number of supported versions, and [_] is used to distinguish between each version.
Meanwhile, in the present embodiment, the SDP discloses an example of only chatting ability, but may also be set by expressing voice or video capability.
In particular, the
When the 3G-
The
The
The
When the
In addition, when the
As described above, the 3G-
Next, when requesting a video chat from the
The receiving
The
The
When the
As described above, the 3G-
Video chat method
An image chat method in the
Referring to FIG. 3, a video chat method in the case where a 3G-
First, a session is established between the 3G-
Next, in step S107, the
Next, in step S111, the
Next, in step S113, the
Next, the
Next, in step S117, the
As described above, after the 3G-
Referring to FIG. 4, the video chat method in the case where the
First, a session is established between the 3G-
In this case, the user of the
Next, in step S207, the
Next, the
Next, in step S213, the
Next, in step S215, the
As described above, after the 3G-
On the other hand, the embodiments disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.
The present invention relates to a heterogeneous video communication network in which a user of a SIP terminal and a 3G-324M terminal using a heterogeneous video communication network, a SIP network, and a WCDMA network, respectively, can exchange messages based on a user's request during a video call. Provided are an image chat system and method. According to the present invention, it is possible to perform video chatting after quickly exchanging video chatting capability between a SIP terminal and a 3G-324M terminal through a converter, so that even a user who uses a SIP network and a WCDMA network may perform video chatting smoothly. Can be done.
1 is a schematic diagram showing an image chat system interworking in a heterogeneous video communication network according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration of the converter of FIG. 1.
3 is a first flowchart illustrating an image chat method interworking in a heterogeneous video communication network according to an exemplary embodiment of the present invention.
4 is a second flowchart illustrating an image chat method interworking in a heterogeneous video communication network according to an exemplary embodiment of the present invention.
<Explanation of symbols for the main parts of the drawings>
10: 3G-324M terminal 20: video communication network
30: WCDMA network 40: IMS network
50: converter 60: SIP network
70: SIP terminal 100: video chat system
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080078205A KR20100019265A (en) | 2008-08-08 | 2008-08-08 | System and method for video telephony chatting in different networks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080078205A KR20100019265A (en) | 2008-08-08 | 2008-08-08 | System and method for video telephony chatting in different networks |
Publications (1)
Publication Number | Publication Date |
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KR20100019265A true KR20100019265A (en) | 2010-02-18 |
Family
ID=42089745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020080078205A KR20100019265A (en) | 2008-08-08 | 2008-08-08 | System and method for video telephony chatting in different networks |
Country Status (1)
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KR (1) | KR20100019265A (en) |
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2008
- 2008-08-08 KR KR1020080078205A patent/KR20100019265A/en not_active Application Discontinuation
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