KR101334478B1 - Method and apparatus for providing multimedia service communication in a communication system - Google Patents

Abstract

In a communication system based on an IP Multimedia Subsystem (IMS), a method of receiving a multimedia service by a first multimedia terminal is connected to a first server and receives a multimedia service from the first server. The first server requests a voice for bidirectional communication with the second multimedia terminal, receives a voice in response to the voice request from the first server, and performs bidirectional communication with the second multimedia terminal.

IP multimedia subsystem, two-way communication, PTA

Description

METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA SERVICE COMMUNICATION IN A COMMUNICATION SYSTEM}

1 is a diagram illustrating a communication system structure based on IMS according to an embodiment of the present invention;

2 is a diagram illustrating an online lecture connection and a procedure flowchart according to an embodiment of the present invention;

3A to 3D are diagrams illustrating a screen for taking an online lecture using a terminal capable of supporting bidirectional communication according to an embodiment of the present invention.

The present invention relates to a communication system, and more particularly, to a method and apparatus for providing a multimedia service in a communication system based on an IP Multimedia Subsystem (hereinafter, referred to as IMS).

In general, IMS is a system for providing an IP-based packet communication service. The IMS enables multimedia communication such as video or large data out of voice-oriented services.

The existing multimedia communication service is a one-way service. Here, unidirectional service means that a provider providing a service provides a service regardless of a consumer's intention of receiving the service. For example, in the case of online lectures using the Internet, the instructor unilaterally lectures only his lecture regardless of the consumer's intention. Therefore, the consumer, that is, the learner, if there are any questions about the contents of the lecture, leave the question on the bulletin board after the lecture is finished or ask the lecturer what is in the mail (mail). However, if the lecturer fails to check the bulletin board or e-mail, or checks the elapsed time, the attendee can waste time.

As described above, only one-way service is provided in the related art, and no specific scheme for two-way communication is provided. As communication technology advances, users want to be provided with higher quality services. Therefore, there is a need for an interactive service providing method for users in a communication system.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a method and apparatus for providing a bidirectional communication service in an IMS-based communication system.

Another object of the present invention is to provide a method and apparatus for an online lecture providing an interactive service in a communication system based on IMS.

The method of the present invention; In a communication system based on an IMS, a method for receiving a multimedia service by a first multimedia terminal, the method comprising: connecting to a first server, receiving a multimedia service from the first server, and transmitting to the first server. Requesting a right to speak for bidirectional communication with a second multimedia terminal; receiving a right to speak in response to the request for speaking right from the first server, and performing a bidirectional communication with the second multimedia terminal.

The apparatus of the present invention; In a communication system based on an IMS, a first multimedia terminal provided with a multimedia service, comprising: a receiver connected to a first server to receive a multimedia service from the first server, and a second multimedia terminal to the first server; The transmitter includes a transmitter for requesting a right to speak for bidirectional communication, receiving a right to speak in response to the request for speaking right from the first server, and performing bidirectional communication with the second multimedia terminal.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The present invention proposes a method and apparatus for providing a bidirectional communication service in a communication system based on an IP Multimedia Subsystem (hereinafter referred to as "IMS"). The present invention is of course applicable to all communication systems that provide services using IMS.

The present invention will be described as an example of a two-way online lecture service using a terminal that supports IMS in the communication system based on the IMS.

Next, the communication system structure based on the IMS will be described with reference to FIG. 1.

1 is a diagram illustrating a communication system structure based on IMS according to an embodiment of the present invention.

Referring to FIG. 1, in the communication system, a first multimedia terminal 110 and a second multimedia terminal 120 exist, and a call / session for transmitting information of the first multimedia terminal 110 to another server. A control function server (Call / Session Control Function Server, hereinafter referred to as "CSCF") 130, a content server 140 for providing multimedia content to the first multimedia terminal, and push-to-all , Hereinafter referred to as a 'PTA' server). Here, the content server 140 and the PTA server 150 is an application server, and the application server includes a location information providing server and a state information server.

Then, the role and preconditions of the terminals and servers according to the present invention will be described in more detail.

The first multimedia terminal 110 and the second multimedia terminal 120 may be a wired, wireless or wired and wireless integrated terminal, and should have sufficient processing power to play multimedia content. In addition, the first multimedia terminal 110 and the second multimedia terminal 120 should have a voice and multimedia playback function, and should be able to transmit and receive specific multimedia data.

The CSCF 130 transmits the requested call to the content server 140 when the first multimedia terminal 110 requests the call to the CSCF 130.

The content server 140 may include a HyperText Transfer Protocol (HTTP), a Wireless Application Protocol (WAP), flash animation, etc. in addition to audio, video, image, and message. Maintain and manage the multimedia contents. Here, the multimedia content managed by the content server 140 may include advertisement homepages of individuals and companies, web information for online shopping, phone number search pages, files such as photos and maps, and the like. Of course, the content server 140 according to an embodiment of the present invention serves to provide lecture content.

The PTA server 150 is a server that provides communication services such as media services, video chats, and multimedia messages. The PTA server 150 may be referred to as PTT (Push To Talk), PTV (Push To Video, hereinafter referred to as PTV), and PTD (Push To Data, hereinafter referred to as 'PTD'). Function).

Then, with reference to Figure 2 will be described with respect to the online lecture access and the procedure according to the IMS according to an embodiment of the present invention.

2 is a diagram illustrating an online lecture connection and a procedure flowchart according to an embodiment of the present invention.

Referring to FIG. 2, a first multimedia terminal 201, a CSCF 203, a content server 205, a PTA server 207, and a second multimedia terminal 209 are included. For example, the first multimedia terminal 201 refers to a terminal used by a student, and the second multimedia terminal 209 refers to a terminal used by an instructor.

The learner requests a call to an online lecture company using the first multimedia terminal 201 (step 202). The call may include address information of the online lecture company. The address information may be a phone number or an IP based address. When the first multimedia terminal 201 requests a call to the online lecture company, the CSCF 203 analyzes a phone number or IP-based address to trigger a call to the content server 205 ( Step 204). The content server 205 informs the first multimedia terminal 201 of the address information to which the first multimedia terminal 201 should access (step 206). The address information means the address of the online lecture company to which the call is actually connected. Upon receiving address information from the content server 205, the first multimedia terminal 201 accesses the online lecture company server through the address information (step 208).

Here, the instructor using the second multimedia terminal 209 requests to open a lecture to the PTA server 207 (step 210). The PTA server 207 establishes a session or room of a lecture requested by the second multimedia terminal 209. Before the first multimedia terminal 201 accesses the content server 205, the second multimedia terminal 209 may have previously requested a lecture opening. In the present invention, it is assumed that the lecture establishment request of the second multimedia terminal 209 precedes the call request of the first multimedia terminal 201. The content server 205 searches for a lecture requested to be opened (step 212).

The lecture search in step 212 may occur periodically at a predetermined time interval, or the content server 205 may continuously check the lecture search before the first multimedia terminal 201 is connected. If the content server 205 does not search for the lecture desired by the first multimedia terminal 201, the first multimedia terminal 201 may not take a specific online lecture desired by the content server 205. In the present invention, a description will be made on the assumption that a lecture to be taken by the first multimedia terminal 201 is provided.

The first multimedia terminal 201 selects a desired lecture from among lectures provided by the content server 205 and clicks a lecture link to participate in the lecture. The first multimedia terminal 201 is given an ID for participating in the selected lecture before joining the lecture. The ID is transmitted from the PTA server 207 to the content server 205 (step 214). In step 214, the content server 205 may be transmitted while searching for a lecture, or may transmit the ID at the same time when the second multimedia terminal 209 requests to open a lecture. The content server 205 receiving the ID transmits the ID to the first multimedia terminal 201 (step 216). The first multimedia terminal 201 granted the ID accesses the PTA server 207 (step 218). The first multimedia terminal 201 connected to the PTA server 207 takes the selected lecture using the ID.

When the first multimedia terminal 201 takes a question or a request while taking an online lecture, the first multimedia terminal 201 requests the right to speak to the PTA server 207 (step 220). Speaking using the right to speak can be implemented in various ways, such as video, voice, text. In addition, the right to speak may be requested during the online lecture, but may be requested before the online lecture starts or after the online lecture ends.

The first multimedia terminal 201 is given a right to speak according to a criterion set in advance by an instructor using the second multimedia terminal 209. Of course, if the PTA server 207 is already aware of the right to speak the right to grant the right to speak. That is, the instructor or the PTA server 207 using the second multimedia terminal 209 may give a right to speak to a plurality of multimedia terminals at the same time, or may first give a right to speak to a specific multimedia terminal in consideration of priority. have. The priority may be determined in consideration of the order in which the multimedia terminals request the right to speak or the degree of billing (ie, service usage fee) paid by each multimedia terminal. On the other hand, the right to speak may be limited in time. In other words, the specific multimedia terminal granted the right to speak may use the right to speak only within a predetermined time. Of course, the predetermined time may be different for each multimedia terminal, and when the specific multimedia terminal is a terminal to which the highest priority service is provided, the right to speak may be granted for the longest time. Hereinafter, it is assumed that the first multimedia terminal 201 can use the right to speak for a limited time.

When the PTA server 207 is requested to speak from the first multimedia terminal 201, the second multimedia terminal 209 gives a talk right to the PTA server 207 (step 222). The PTA server 207 that has received the right to speak transmits the right to speak to the first multimedia terminal 201 (step 224). The first multimedia terminal 201, which has been granted the right to speak, may ask the second multimedia terminal 209, and the second multimedia terminal 209 may again be provided if a predetermined time is exceeded or the question is over. In step 226, a message is sent to the PTA server 207 to recover the right to speak. The first multimedia terminal 201, which is requested to retrieve the right to speak from the PTA server 207, returns the right to speak (step 228). In the above description, the first multimedia terminal 201 returns the speaking right in response to the request for collecting the speaking right of the second multimedia terminal 209. However, the return of the speaking right may be automatically made after a predetermined time elapses.

The first multimedia terminal 201 can receive a file related to the lecture from the PTA server 207 to the PTD service, and can also view the lecture video with the PTV service, and can directly talk to the instructor using the PTT service. Do. In other words, unlike the conventional one, in which only one-way communication is performed, the present invention has the advantage that the lecture listening, the lecture file, and the question are made in both directions.

3A to 3D illustrate a process of receiving an online lecture using a multimedia terminal capable of supporting bidirectional communication according to an embodiment of the present invention. Here, the first multimedia terminal may select and take a specific lecture.

3A to 3D, FIG. 3A is a diagram in which the first multimedia terminal requests a call to an online lecture company. The figure shows that the call is requested using the telephone number.

3B illustrates a list of lectures provided by the content server after receiving an address from the content server.

3C illustrates an image of an instructor providing a lecture and a participant in a lecture.

FIG. 3D is a diagram illustrating that lecture data is being transmitted through the PTD service.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various modifications within the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention has an advantage of providing a bidirectional communication service in a communication system based on IMS.

Claims (22)

In a communication system based on IP Multimedia Subsystem (IMS), a method for receiving a multimedia service by a first multimedia terminal, Requesting call setup to a second server; Receiving information for receiving the multimedia service from a first server through the second server; Accessing the first server using the received information; Receiving a multimedia service from the first server; Requesting a right to speak for bidirectional communication with a second multimedia terminal to the first server; The method for providing a multimedia service in an IMS-based communication system comprising receiving the talk right from the second multimedia terminal through the first server and performing bidirectional communication with the second multimedia terminal. delete The method of claim 1, The multimedia service is based on IMS, characterized in that at least one of the Push To Video (PTV), Push To Data (PTD), and Push To Talk (PTT) services Method of providing a multimedia service in a communication system. The method of claim 1, The method for providing a multimedia service in an IMS-based communication system, wherein the right to speak is automatically recovered by the first server when a predetermined time is exceeded. The method of claim 1, The method for providing a multimedia service in an IMS-based communication system further comprising the step of returning the utterance right to the first server when the utterance right is requested from the second multimedia terminal. The method of claim 1, When the multimedia service is provided to a plurality of multimedia terminals, the right to speak is first given to a specific multimedia terminal in consideration of priority. The method according to claim 6, And the priority is determined by at least one of an order of requesting the right to speak the plurality of multimedia terminals and a service usage fee paid by each multimedia terminal. In a communication system based on IP Multimedia Subsystem (IMS), in a first multimedia terminal provided with a multimedia service, Request a call setup to a second server, receive information for receiving the multimedia service from the first server through the second server, access the first server using the received information, and connect the first server A receiver for receiving a multimedia service from; A transmitter for requesting a right to speak for bidirectional communication with a second multimedia terminal to the first server, receiving the right to speak through the first server from the second multimedia terminal, and performing bidirectional communication with the second multimedia terminal. A first multimedia terminal receiving a multimedia service in a communication system based on an IMS. delete 9. The method of claim 8, The multimedia service is based on IMS, characterized in that at least one of the Push To Video (PTV), Push To Data (PTD), and Push To Talk (PTT) services A first multimedia terminal receiving a multimedia service in a communication system. 9. The method of claim 8, The first terminal is provided with a multimedia service in the communication system based on the IMS, characterized in that the right to speak is automatically recovered by the first server when a predetermined time is exceeded. 9. The method of claim 8, The transmitter is a first multimedia terminal provided with a multimedia service in an IMS-based communication system, characterized in that when the request for retrieval of the voice from the second multimedia terminal is returned to the first server. 9. The method of claim 8, When the multimedia service is provided to a plurality of multimedia terminals, the right to speak is first given to a specific multimedia terminal in consideration of priority, the first multimedia terminal receiving a multimedia service in an IMS-based communication system. 14. The method of claim 13, The priority is determined by at least one of an order of requesting the right to speak the plurality of multimedia terminals and a service usage fee paid by each multimedia terminal. Multimedia terminal. delete delete delete delete delete delete delete delete

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