KR101340368B1 - System and method for providing broadcasting service in broadcasting system - Google Patents

Abstract

The present invention relates to a system and method for providing a broadcast service of an IPTV channel broadcast in a broadcast system. The present invention relates to a trick mode start request according to a pause of a user who is receiving a broadcast service from a terminal. After transmitting a response signal to the terminal, the content of the broadcast service in the trick mode is recorded, and in the trick mode receives a session establishment request according to the user's playback from the terminal, the request to the session establishment request Accordingly, a session with the terminal is established, and the broadcast service is provided to the user by transmitting the content of the broadcast service to the terminal where the session is established.

Description

System and method for providing broadcasting service in broadcasting system {System and method for providing broadcasting service in broadcasting system}

The present invention relates to a broadcast system for providing a broadcast service, and more particularly, to a system and method for providing a broadcast service of an IPTV channel broadcast in a broadcast system.

In general, broadcast services have been developed from the airwave broadcasting services to provide various broadcasting services such as satellite broadcasting services, terrestrial EMB broadcasting services, and IPTV broadcasting services.

Among such broadcast service methods, there is a channel broadcast trick mode service in the IPTV broadcast service. The channel broadcast trick mode service is a method of stopping a service temporarily provided by a user's request and resuming it when there is a request after a certain point in time. In order to provide such a channel broadcast trick mode service, a channel broadcast trick mode service was provided by mounting a storage medium such as a hard disk (HDD) in a set-top box. However, this method has a problem that all set top boxes must include a hard disk (HDD).

In addition, such a channel broadcast trick mode service has a problem in that a service is provided only for a specific channel.

In order to solve this problem, a method of storing broadcast contents transmitted from an IPTV headend system by the amount of broadcast contents for each broadcasting channel from a current time to a certain time before is proposed in a system on a network. However, a method of storing a predetermined amount of broadcast content transmitted from an IPTV headend system in a system on a network must record and provide all broadcast services individually and in real time upon request from each IPTV terminal. Therefore, there is a problem in that many channels must be recorded in real time from the system side. This has the problem of greatly increasing the system load.

The present invention provides a method and system for providing a channel broadcast trick mode service while reducing the amount of real-time stored in the broadcast system in order to solve the problems of the prior art.

The present invention provides a method and system for providing a channel broadcast trick mode service simultaneously to several channels in a broadcast system.

The system of the present invention for achieving the above object, in a system for providing a broadcast service in a broadcast system, receiving a trick mode start request according to a pause of a user receiving a broadcast service from the terminal to the media server A call control server for transmitting and receiving a response signal for the trick mode start request from the media server and transmitting the received signal to the terminal; The media server transmitting the response signal indicating the time information of the trick mode start request to the call control server after receiving the trick mode start request from the call control server; And the terminal receiving the content for the broadcast service from the media server and providing the content to the user.
According to an aspect of the present invention, there is provided a method of providing a broadcast service in a broadcast system, the method comprising: receiving a trick mode start request according to a pause of a user who is receiving a broadcast service from a terminal; Recording a content of the broadcast service in a trick mode after transmitting a response signal to the terminal to start the trick mode; Receiving, from the terminal, a session establishment request according to playback of the user in the trick mode; Establishing a session with the terminal according to the session establishment request; And providing a broadcast service to the user by transmitting the content of the broadcast service to a terminal on which the session is established.

According to the present invention, an IPTV channel broadcast trick mode service can be provided by recording in real time only for a live program in a media server. Therefore, it is not necessary to mount a hard disk (HDD) in the set top box, and it is possible to provide a trick mode service for all channels. In addition, there is an advantage that it is not necessary to record all the channels in real time.

1 is a configuration diagram of a general IPTV service control system;
2 is a flow chart of channel broadcasting and VoD service control in a general IPTV service control system;
3 is a block diagram of an IPTV channel broadcast trick mode service control system according to an embodiment of the present invention;
4A and 4B are flowcharts illustrating channel broadcasting and VoD service control in a next generation communication network according to an embodiment of the present invention;
5 is a flowchart illustrating control of a channel broadcast trick mode service in a next generation communication network according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The terms used in the present invention described below may be variously used in each research group or development company. Therefore, the present invention should not be limited to the terms used in the present invention. In addition, in the description of the present invention, specific examples are provided to help understanding of the present invention, and it should be noted that it should not be used as an element limiting the present invention.

In the present invention described below, only a live broadcast program such as a sports relay is recorded in real time from a program start time in a system on a network, and an IPTV channel broadcast trick mode service control using encoded content is performed for a recorded broadcast.

IPTV channel broadcast trick mode service control method and system according to the present invention, as well as the client-server model of the IP delivery network, the Session Initiation Protocol (hereinafter referred to as "SIP") based Next Generation Network (NGN) environment Application is also possible at.

1 is a block diagram of a general IPTV service control system.

Referring to FIG. 1, the conventional IPTV service control system 120 includes an EPG server 121, an authentication server 122, a profile server 123, and a media server 124. And the IPTV terminal 100 is composed of a set-top box + TV (101), the set-top box + TV 101 represents a user authentication request and EPG information, the IPTV service control system 120 is a set-top box + TV (101) Is a client-server model that responds to requests from.

Next, a process of controlling channel broadcasting and VoD service in a general IPTV service control system will be described with reference to FIG. 2.

2 is a flowchart of channel broadcasting and VoD service control in a general IPTV service control system.

Referring to FIG. 2, first, the media server 124 multicasts all channel information to the IPTV terminals 100 through the IP delivery network 110 (S200). When the IPTV terminal 100 requests the EPG to the EPG server 121 (S201), the EPG server 121 requests user authentication to the authentication server 122 (S202), and if the authentication is successful, the authentication server 122 By notifying the media server 124 of the user authentication result (S204), it may be possible to accept only the content request of the authenticated user.

In the case of an authenticated user, the EPG server 121 responds to all users with the same EPG (S207) or imports a user profile (S205 to S206) to generate and respond to a personalized EPG reflecting user-specific content access rights. It may be (S207). The IPTV terminal 100 receiving the EPG requests the channel to the IP delivery network 110 (S208) to receive the requested channel (S209), or requests the VoD content to the media server 124 (S210) to receive the content. (S211).

In the system having the configuration of FIG. 1 described above, when the VoD content is received as in the flowchart of FIG. 2, there is a problem as described in the related art.

3 is a block diagram of an IPTV channel broadcast trick mode service control system according to an embodiment of the present invention.

Referring to FIG. 3, the system includes an IPTV terminal 300, an IP delivery network 310, and an IPTV service control system 320. The IPTV terminal 300 includes a wired / wireless terminal capable of connecting to an IP delivery network 310 such as a set top box, a TV 301, a PC 302, a mobile phone 303, and the like. The IPTV service control system 320 is divided into the presentation unit 330 and the service control unit 340. Here, the expression unit 330 performs an operation of optimizing and showing EPG information according to the form of the IPTV terminal 300. That is, the EPG providing server 331 performs an operation of optimizing and showing EPG information according to the form of the IPTV terminal 300. In addition, the home page 332 and the phone page 333 are for providing home page information for providing an IPTV, and provide an internet home page or a phone page of a mobile terminal.

The service controller 340 may include an authentication server 341 which performs subscriber authentication, a profile server 342 storing a subscriber profile, a terminal profile, a content profile, a live broadcast encoder 345 that receives live broadcasts and encodes them in real time. A content server 346 for storing encoded content, a media server 343 for transmitting a media stream input from a live encoder 345 and a content server 346 to a unicast or multicast network, and a multimedia session in a next-generation communication network. Call control server 344 to control the configuration.

The interface 350 between the presentation unit 330 and the service control unit 340 is the same regardless of the type of the presentation unit 330. That is, the EPG request message, the authentication request message, and the profile request message requested by the presentation controller 330 to the service controller 340 may be used in the same manner as the message responding to the presentation unit 330 by the service controller 340. By using the same response message as described above, only the screen shown to the user is expressed differently according to the type of IPTV terminal, so that the same IPTV service can be provided in any type of IPTV terminal.

4A and 4B, a process of controlling channel broadcasting and VoD service in a next generation communication network according to the present invention will be described. 4A and 4B illustrate a channel broadcast and VoD service control flow in a next generation communication network according to an embodiment of the present invention. 4A and 4B should be noted that the flow of FIG. 4B is a continuous process after the flowchart of FIG. 4A.

4A and 4B, unlike the flowchart of FIG. 2, a call control server 344 for controlling a multimedia session in a next generation communication network is included. Various servers of the service control unit 340 and the IPTV terminal 300 should be equipped with a protocol for controlling a session, such as SIP.

First, the media server 343 multicasts all channel information to the IPTV terminals 300 through the IP delivery network 310 (S400). Thereafter, when the IPTV terminal 300 requests service registration from the call control server 340 (S401), the call control server 340 requests user authentication from the authentication server 341 (S402). Thereafter, in response to the response from the authentication server 341 to the call control server 340 (S403), the IPTV terminal 300 may check the service registration result (S404). Thereafter, the call control server 440 may also notify the expression unit 300 of the user authentication result (S405), thereby enabling the EPG response only for the authenticated IPTV terminal 300. The EPG acquisition process of the IPTV terminal 300 is the same as in FIG. 2 described above.

Thereafter, the IPTV terminal 300 requests a multimedia session setup to the call control server 344 (S410), and a session setup response is performed (S411). In this process, network resources for viewing content are reserved between the IPTV terminal 300 and the media server 343.

The IPTV terminal 300 requests a channel for watching IPTV to the IP delivery network 310 (S412) and receives the requested channel (S413). Alternatively, the IPTV terminal 300 requests a multimedia session setup to the call control server 344 (S414), and then performs a session setup procedure between the call control server 344 and the media server 343 (S415 to S417). A session establishment procedure between the IPTV terminal 300 and the call control server is performed (S418 and S419). In this process, network resources for viewing content are reserved between the IPTV terminal 300 and the media server 343.

Thereafter, the IPTV terminal 300 requests the VoD content to the media server 343 (S420) and receives the content (S421).

Next, a process of controlling a channel broadcast trick mode service in a next generation communication network according to the present invention will be described. 5 is a flowchart illustrating channel broadcast trick mode service control in a next generation communication network according to the present invention.

Before watching with reference to FIG. 5, it should be noted that in the case of live broadcasting such as news or sports, the media server 343 starts recording from a program start time. When the user presses the pause button while watching the channel broadcast (S501), the IPTV terminal 300 requests the call control server 344 to start the trick mode (S202). In this case, pressing the stop button during viewing means that the user requested to start the trick mode according to the present invention. Therefore, the trick mode starts according to the present invention through this.

The call control server 344 then transfers to the media server 343 according to the trick mode initiation request. Then, the media server 343 transmits a response signal for the trick mode start request in response to this (S504). In this case, the response signal to the trick mode start request informs the time information at the time when the trick mode is requested. Then, the call control server 344 transmits a response signal to the trick mode start request to the IPTV terminal 300 (S505). Through this process, recording for trick mode is performed.

After the user presses the Play button (S506), that is, when the progress of the trick mode is requested, the IPTV terminal 300 transmits a session setup request to the call control server 344 (S507). The call control server 344 then transfers the session establishment request received from the IPTV terminal 300 to the media server 343 (S508). Accordingly, the media server 343 examines the session of the IPTV terminal 300 and provides a session establishment response to the call control server 344 (S509). The call control server 344 transmits a session establishment response acknowledgment signal to the media server 343 according to the call establishment response provided from the media server 343 (S510). Then, the call control server 344 provides the session establishment response to the IPTV terminal 300 (S511). Then, the IPTV terminal 300 generates a session establishment response confirmation signal and provides it to the call control server 344 (S512).

The salping session setup processes (S507 to S512) can be seen to proceed similarly to the salping process in the channel broadcasting and VoD service control process in FIGS. 4A and 4B described above.

The above description will be briefly described. First, in the present invention, it is divided into two as described above. First, in the case of live broadcasting, the media server 343 performs recording from the start of content. Second, there may be a case where a recorded broadcast is provided. In this case, when the recorded mode or the content being recorded is requested in the trick mode, the requested time is recognized and stored. If the content is already encoded, that is, a play is requested, the content stored in the media server 343 is played back from the trick mode request point. On the other hand, if the content is in the process of recording, the play mode is recognized when the trick mode request is recognized and the play is requested.

In FIG. 5, any one of the set-top box + TV 301, the PC 302, and the mobile phone 303 of FIG. 3 may be used as the IPTV terminal that presses the pause button and the play button. The media server 343 may perform recording in various image quality according to the type of the IPTV terminal 300, and may prepare contents encoded in various image quality according to the type of the terminal for the recorded broadcast. Accordingly, the IPTV channel broadcast trick mode of the present invention can guarantee service continuity between terminals.

This process is possible because most channel broadcasts transmit pre-produced contents according to a schedule except for live broadcasting such as news and sports.

Looking back at the above-described present invention as follows.

A service control system for channel broadcast trick mode service control in a media server of a system for providing IPTV broadcasting according to an embodiment of the present invention, the expression unit for optimizing and providing EPG information according to the type of IPTV terminal, and the subscriber Perform authentication, store subscriber profiles, terminal profiles, content profiles, receive live broadcasts to encode in real time, store content that has already been encoded, and send live-encoded media streams to unicast or multicast networks It includes a service control unit for controlling a multimedia session in the next generation communication network.

In addition, the service control unit, the authentication server 341 for authenticating the subscriber, the subscriber profile, the terminal profile, the profile server for storing the content profile 342, the live broadcast encoder 345 for receiving live encoding in real time, already A content server 346 for storing encoded content, a media server 343 for transmitting a media stream input from a live encoder 345 and a content server 346 to a unicast or multicast network, and a multimedia session in a next-generation communication network. Call control server 344 to control the configuration.

In addition, the EPG providing server optimizes and provides EPG information according to the type of the IPTV terminal, and the home page and the phone page are for providing home page information for providing an IPTV, and provide a home page for the Internet home page or a mobile terminal. do.

While the above has been shown and described with respect to preferred embodiments of the invention, the invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

100, 300: IPTV terminal 101, 301: set-top box + TV
110, 310: IP delivery network 120, 320: IPTV service control system
121, 331: EPG server 122, 341: authentication server
123, 342: profile server 124, 343: media server
302: PC 303: mobile phone
330: expression unit 332: homepage
333: Phone Page 344: Call Control Server
345: live encoder 346: content server

Claims (8)

delete In a system for providing a broadcast service in a broadcast system,
A call for receiving a trick mode start request according to a pause of a user who is receiving a broadcast service from a terminal to a media server, and receiving a response signal for the trick mode start request from the media server to the terminal. Control server;
The media server transmitting the response signal indicating the time information of the trick mode start request to the call control server after receiving the trick mode start request from the call control server; And
And the terminal receiving the content for the broadcast service from the media server and providing the content to the user.
When the broadcast service is a live broadcast, the media server records from the start time of the live broadcast content, and when the broadcast service is a recorded broadcast, the broadcast service is performed from the time of the trick mode start request. Provide system.
In a system for providing a broadcast service in a broadcast system,
A call for receiving a trick mode start request according to a pause of a user who is receiving a broadcast service from a terminal to a media server, and receiving a response signal for the trick mode start request from the media server to the terminal. Control server;
The media server transmitting the response signal indicating the time information of the trick mode start request to the call control server after receiving the trick mode start request from the call control server; And
And the terminal receiving the content for the broadcast service from the media server and providing the content to the user.
The call control server, in the trick mode, receives a session establishment request according to the playback of the user from the terminal and transmits the session establishment request to the media server, and receives a session establishment response to the session establishment request from the media server, And transmitting the session establishment response signal to the media server after transmitting the session establishment response acknowledgment signal for the session establishment response.
The method of claim 3,
The media server receives the session establishment request from the call control server, examines the session of the terminal, and transmits the session establishment response to the call control server.
5. The method of claim 4,
When the terminal provides the encoded broadcast service content to the user, the terminal plays the content of the broadcast service stored in the media server from the time point of the trick mode start request, and provides the user with the content of the broadcast service being recorded. In this case, the broadcast service providing system, characterized in that for playing the content from the time when the recording proceeds.
In the method for providing a broadcast service in a broadcast system,
Receiving a trick mode start request according to the pause of the user receiving the broadcast service from the terminal;
Recording a content of the broadcast service in a trick mode after transmitting a response signal to the terminal to start the trick mode;
Receiving, from the terminal, a session establishment request according to playback of the user in the trick mode;
Establishing a session with the terminal according to the session establishment request; And
And providing the broadcast service to the user by transmitting the content of the broadcast service to the terminal in which the session is established.
The method according to claim 6,
In the recording step, when the broadcast service is a live broadcast, recording is performed from the start time of the live broadcast content, and when the broadcast service is a recording broadcast, the recording is performed from the time of the trick mode start request. How we deliver the service.
The method according to claim 6,
In the providing of the broadcast service, when providing the content of the encoded broadcast service to the user, the content of the broadcast service stored in the media server is played from the time point of the trick mode start request, and the content of the broadcast service being recorded is displayed. When providing to the user, the broadcast service providing method characterized in that to play the content from the time when the recording proceeds.

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