KR20070092485A - Method for providing multimedia bell and ringback service in communication system - Google Patents

Abstract

A method for providing a multimedia bell service and a ringback service in a communication system is provided to offer various services to users by providing a multimedia bell service and a ringback service according to the capability of called and calling terminals. If an INVITE message for a call connection is received from a calling terminal, an AS(Application Server) obtains capability information of the calling terminal from the INVITE message(302). Also the AS receives a provisional response message from a SIP/IP core network and obtains capability information of a called terminal(304). The AS confirms whether to provide a multimedia bell service to the called terminal(306). In case the multimedia bell service should be provided to the called terminal, the AS provides the multimedia bell service in consideration of capability of the called terminal(308), and then judges whether call connection setup has been completed(312). If a final response message is received from the SIP/IP core network, the AS stops providing the multimedia bell service to the called terminal(314).

Description

METHOD FOR PROVIDING MULTIMEDIA BELL AND RINGBACK SERVICE IN COMMUNICATION SYSTEM}

1 is a signal flow diagram illustrating a process in which a called terminal receives a bell service in a communication system according to an exemplary embodiment of the present invention.

2 is a signal flow diagram illustrating a process in which a calling terminal receives a ringback service in a communication system according to an embodiment of the present invention.

3 is a flowchart illustrating a process of providing a multimedia bell / ringback service by an AS according to an embodiment of the present invention.

The present invention relates to a communication system, and more particularly to a method for providing a bell and ringback service to a caller and a called party.

In general, the IP Multimedia Subsystem (hereinafter referred to as "IMS") is a system for providing an IP-based packet communication service. The IMS is based on the Session Initiation Protocol (hereinafter referred to as SIP), which is a text-based application layer control protocol. The SIP is based on a client / server structure in which the server responds when clients initiate a call and allows one or more participants to create, modify and terminate a session together. These sessions include teleconferences over the Internet, telephone calls, interviews, event notifications, instant messaging (IM), and the like.

In a SIP-based multimedia telephony environment, a 180 ringing message is used to provide a ring-back tone to a calling terminal. The originating terminal receiving the 180 ringing message generates a local ringback tone or reproduces ringback tone data carried in the ringing message to provide the ringback tone to the user.

In addition, the SIP-based multimedia telephony environment uses an INVITE message to provide a bell to the called terminal. The called terminal receiving the INVITE message generates a previously stored bell or plays a bell included in the INVITE message to provide the bell to the user.

In communication systems such as conventional Public Switched Telephone Network (PSTN), Code Division Multiple Access (CDMA) systems and Wideband Code Division Multiple Access (W-CDMA), When the calling terminal requests a call, the calling terminal is provided with only the basic ringback tone or the ringback tone preset by the calling party / called party, and the called terminal is also provided with only the bell of the audio form stored in advance.

That is, in the conventional communication system, the calling terminal and the called terminal are provided with a bell or ringback tone regardless of their intention, preference, and taste. This is because the capability of the terminal was limited. However, the current communication system is developing from the third generation communication system to the fourth generation communication system, and the performance of the terminal is also upgraded to high performance in accordance with this trend. In addition, the level of service required by users is also increasing.

The present invention has been made to solve the above problems, an object of the present invention is to provide a method for the calling terminal to provide a bell service according to the capabilities of the called terminal.

Another object of the present invention is to provide a method in which a called terminal provides a ringback service according to the capability of the calling terminal.

The first method of the present invention for achieving the above object; In a communication system, a method for providing a multimedia bell and ringback service by an application server, the method comprising: acquiring capability information of the calling terminal and the called terminal according to a call connection request of the calling terminal, and capabilities of the calling terminal and the called terminal. Correspondingly, a process of providing a multimedia bell and a ringback service to the called terminal and the calling terminal, respectively.

The second method of the present invention for achieving the above object; In a communication system, a method for receiving a multimedia ringback service by a calling terminal, the calling terminal transmitting a call connection request message including its capability information, and a multimedia ringback provided corresponding to the capability of the calling terminal. Receiving a service.

The third method of the present invention for achieving the above object; In a communication system, a method in which a called terminal receives a multimedia bell service, the method comprising: transmitting a message including capability information of the called terminal according to a call connection request message received; Receiving a multimedia bell service.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation of the present invention will be described, and other background art will be omitted so as not to distract from the gist of the present invention.

The present invention proposes a method for providing a bell service to the called terminal or a ringback service to the calling terminal according to the capabilities of the calling terminal and the called terminal in a communication system.

The communication system may be a communication system using an IP Multimedia Subsystem (hereinafter referred to as 'IMS'), and the bell or ringback service may have various types of contents as well as audio contents. It may be a multimedia content service.

In addition, the communication system is basically a plurality of entities constituting a Session Initiation Protocol (SIP) / Internet (hereinafter referred to as "IP") core network And an application server for providing a multimedia bell and ringback service, which is one of the plurality of entities, an application server (hereinafter referred to as an 'AS'), and a calling terminal and a called terminal. Here, an entity constituting the SIP / IP core network excluding the AS may include an IMS server capable of processing corresponding sessions of the calling terminal and the called terminal, a content server maintaining and managing multimedia contents related to a bell and a ringback service, and data. Data Manipulation Server (DMS), Instant Messaging (IM) Server.

1 is a signal flow diagram illustrating a process in which a called terminal receives a bell service in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, first, the calling terminal 100 transmits an INVITE message requesting a call to the called terminal 160 to the SIP / IP core network 120 (step 101). In this case, the INVITE message includes session description protocol (SDP) information indicating the capability of the calling terminal 100. Here, the capability means audio / video codec and IP / port information used by the terminal. The SIP / IP core network 120 transmits the INVITE message to the AS 140 (step 103).

The AS 140 receives an INVITE message from the SIP / IP core network 120, determines whether an SDP exists in the INVITE message, and whether the originating terminal 100 requests a call, and determines The INVITE message including the information is transmitted to the SIP / IP core network 120 (step 105).

The SIP / IP core network 120 transmits the INVITE message received from the AS 140 to the called terminal 160 (step 107). The called terminal 160 transmits a response to the INVITE message to the SIP / IP core network 120 by providing a provisional response message in step 109. Here, the provisional response message includes SDP information of the called terminal 160.

Accordingly, the SIP / IP core network 120 recognizes the capability of the called terminal 160 and transmits a provisional response message to the AS 140 (step 111). The AS 140 transmits the provisional response message to the SIP / IP core network 120 (step 113), and provides a multimedia bell service to the called terminal 160 (step 117).

Meanwhile, the SIP / IP core network 120 receives a provisional response message from the AS 140 and transmits the received provisional response message to the calling terminal 100 (step 115).

The receiving terminal 160 receiving the multimedia bell service from the AS 140 sends a final response message confirming the call reception to the SIP / IP core network 120. (Step 119).

The SIP / IP core network 120 receives the final response message from the called terminal 160 and transmits it to the AS 140 (step 121). When the AS 140 receives the final response message from the SIP / IP core network 120, the AS 140 terminates the multimedia bell service for the called terminal 160 and sends a final response message to the SIP / IP core network ( And transmits again to step 120).

The SIP / IP core network 120 transmits the final response message received from the AS 140 to the calling terminal 100 (step 125). The originating terminal 100 transmits an acknowledgment (ACK) message for the final response to the SIP / IP core network 120 (step 127), and the SIP / IP core network 120 is the called terminal ( In step 129, the acknowledgment message is transmitted.

2 is a signal flow diagram illustrating a process in which a calling terminal receives a ringback service in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 2, first, the originating terminal 200 transmits an INVITE message requesting a call to the called terminal 260 to the SIP / IP core network 220 (step 201). In this case, the INVITE message includes SDP information indicating the capability of the calling terminal 200. The SIP / IP core network 120 transmits the INVITE message to the AS 240 (step 203).

The AS 240 receives an INVITE message from the SIP / IP core network 220, determines whether an SDP exists in the INVITE message, and whether the originating terminal 200 requests a call, and determines The INVITE message including the information is transmitted to the SIP / IP core network 220 (step 205).

The SIP / IP core network 220 transmits the INVITE message received from the AS 240 to the called terminal 260 (step 207). The called terminal 260 transmits a response to the SIP / IP core network 220 in response to the INVITE message (step 209). Here, the provisional response message includes SDP information of the called terminal 260.

Accordingly, the SIP / IP core network 220 recognizes the capability of the called terminal 260 and transmits a provisional response message to the AS 240 (step 211). The AS 240 transmits the provisional response message to the SIP / IP core network 220 (step 213), and provides a multimedia ringback service to the calling terminal 200 (step 217).

Meanwhile, the SIP / IP core network 220 receives a provisional response message from the AS 240 and transmits the received provisional response message to the calling terminal 200 (step 215).

The SIP / IP core network 220 receives a final response message for confirming the incoming call to the SIP / IP core network 220 by the called terminal 260, which is receiving the multimedia bell service from the AS 240. (Step 219).

Then, the SIP / IP core network 220 receives the final response message from the called terminal 260 and transmits it to the AS 240 (step 221). When the AS 240 receives the final response message from the SIP / IP core network 220, the AS 240 terminates the multimedia ringback service for the originating terminal 200, and sends a final response message to the SIP / IP core network ( And transmits again to step 220.

The SIP / IP core network 220 transmits the final response message received from the AS 240 to the calling terminal 200 (step 225). The originating terminal 200 transmits an acknowledgment (ACK) message for the final response to the SIP / IP core network 220 (step 227), and the SIP / IP core network 220 is the called terminal ( In step 260, a positive response message is transmitted.

3 is a flowchart illustrating a process of providing a multimedia bell / ringback service by an AS according to an embodiment of the present invention.

Referring to FIG. 3, in step 302, the AS receives an INVITE message for call connection from an originating terminal and proceeds to step 304. In step 304, the AS acquires the capability of the originating terminal included in the INVITE message and capability information of the called terminal included in the provisional response message received from the SIP / IP core network. Here, the capability information has an SDP form.

In step 306, the AS determines whether to provide a multimedia bell service to the called terminal. If the AS determines to provide the multimedia bell service to the called terminal, the flow proceeds to step 308. Otherwise, if the AS determines to provide the multimedia ring back service to the calling terminal, the flow proceeds to step 310.

In step 308, the AS provides a multimedia bell service to the called terminal in consideration of the capability of the called terminal and proceeds to step 312. In step 310, the AS provides a multimedia ringback service to the calling terminal in consideration of the capability of the calling terminal, and proceeds to step 312.

In step 312, the AS determines whether call connection setup is completed. When the AS receives the final response message from the SIP / IP core network, the AS recognizes that the multimedia bell or ringback service provided to the calling terminal or the called terminal should be stopped. Accordingly, in step 314, the AS stops providing the multimedia bell or ringback service. On the other hand, when the AS is unable to obtain the capability information of the calling terminal or the called terminal may provide a conventional general bell or ringback service.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

As described above, the present invention has an advantage that a user can be provided with various services by providing a multimedia bell or ringback service corresponding to the capabilities of the calling terminal and the called terminal in a communication system. In addition, there is an advantage that the service provider can generate revenue according to the service provided.

Claims (10)

In a communication system, a method for an application server to provide a multimedia bell and ringback service, Acquiring capability information of the calling terminal and the called terminal according to a call connection request of the calling terminal; And providing a multimedia bell and a ringback service to the called terminal and the calling terminal, respectively, in accordance with the capabilities of the calling terminal and the called terminal. The method of claim 1, The multimedia bell and ringback is a multimedia bell and ringback service providing method characterized in that provided in the form of a mixture of audio, video and audio. The method of claim 1, The capability information of the calling terminal is obtained by referring to session description protocol (SDP) information included in a call connection request message. The method of claim 1, The capability information of the called terminal is obtained by receiving a message including SDP information. In the communication system, the calling terminal is provided with a multimedia ringback service, Transmitting, by the calling terminal, a call connection request message including its capability information; Receiving the multimedia ringback service provided corresponding to the capability of the calling terminal. The method of claim 5, The multimedia ringback is a method of providing a multimedia ringback service, characterized in that provided in the form of a mixture of audio, video, audio and video. The method of claim 5, The capability information of the calling terminal is described in a Session Description Protocol (SDP) included in a call connection request message. In the communication system, the receiving terminal is provided with a multimedia bell service, Transmitting a message including capability information of the called terminal according to a call connection request message; And receiving a multimedia bell service provided according to the capability of the called terminal. The method of claim 8, The multimedia ring back is the multimedia bell service providing method characterized in that the audio, video, audio and video mixed form provided. The method of claim 8, The message includes the session description protocol (SDP) information indicating the capability of the called terminal.

Images