KR20170057978A - Method of transmitting signaling data of hybrid broadcast service and apparatus using the same - Google Patents

Method of transmitting signaling data of hybrid broadcast service and apparatus using the same Download PDF

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KR20170057978A
KR20170057978A KR1020150161550A KR20150161550A KR20170057978A KR 20170057978 A KR20170057978 A KR 20170057978A KR 1020150161550 A KR1020150161550 A KR 1020150161550A KR 20150161550 A KR20150161550 A KR 20150161550A KR 20170057978 A KR20170057978 A KR 20170057978A
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South Korea
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data
signaling
signaling data
service
broadcast
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KR1020150161550A
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Korean (ko)
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KR101994634B1 (en
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임현정
배병준
오혜주
김순철
임형수
허남호
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한국전자통신연구원
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    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A method of transmitting the signaling data of a hybrid broadcast service and an apparatus using the same are provided. The method of transmitting the signaling data includes a step of receiving broadcasting information corresponding to a hybrid broadcasting service using a broadcasting network and a communication network; a step of generating at least one signaling data corresponding to each of the broadcasting network and the communication network based on the broadcasting information; and a step of transmitting the at least one signaling data to a plurality of component devices for providing the hybrid broadcasting service. So, it is possible to facilitate the provision of an IP-based hybrid broadcasting service.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of transmitting signaling data of a hybrid broadcasting service, and a device using the signaling data transmission method.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signaling data transmission technique of a hybrid broadcasting service for generating signaling data and transmitting the signaling data to respective components in order to provide a broadcasting service in a hybrid broadcasting environment using a digital broadcasting network and a communication network.

In order to provide a broadcasting service, broadcasting service signaling information for describing information on the broadcasting service in a form interpretable by the receiver and delivering it to the receiver is essential. In order to generate such broadcasting service signaling information, PSI (Program Specific Information) based on MPEG (Moving Picture Experts Group) is transmitted in a broadcasting environment based on the existing MPEG-2 systems. In addition, Data of a binary form is configured using the Program and System Information Protocol (PSIP) standard of the Advanced Television System Committee (ATSC) and the Service Information (SI) standard of Digital Video Broadcasting (DVB).

The broadcasting service signaling information thus formed is transmitted to the receiver in the form of MPEG-2 TS (Transport Stream) together with the media data constituting the broadcasting service.

However, the next generation broadcasting does not use the MPEG-2 system for broadcasting service. Therefore, the standard such as MPEG-PSI, ATSC-PSIP, and DVB-SI is not used for broadcasting service signaling. In addition, in order to overcome the limitation of MPEG-2 TS which is used for broadcasting service in ATSC and DVB, there is a discussion for transmitting next generation broadcasting service based on IP (Internet Protocol). In particular, in the case of ATSC, which is the first to standardize the broadcasting service transmission protocol and related applications for the next generation broadcasting service, a new signaling scheme for the type IP based broadcasting service is being actively discussed.

In ATSC, the IP-based next generation broadcasting service is named ATSC 3.0 and the broadcasting service signaling for providing ATSC 3.0 based service is defined in two stages, namely LLS (Low Level Signaling) and SLS (Service Layer Signaling).

Therefore, in order to provide a hybrid broadcasting service using a digital broadcasting network and a communication network, new signaling data generation and transmission technology for generating signaling data of IP level and service level and transmitting the generated signaling data to component devices for transmitting broadcasting The necessity of

Korean Patent Publication No. 10-2015-0008797, published on Jan. 23, 2015 (titled: Broadcast Content Providing Method and Apparatus)

It is an object of the present invention to provide a method of generating broadcast service signaling data and transmitting it to a receiver so as to facilitate providing an IP-based hybrid broadcast service.

It is another object of the present invention to provide a method for efficiently providing broadcast service signaling data using a broadcasting network and a communication network.

It is another object of the present invention to develop a next generation broadcasting service and system in an IP-based broadcasting environment by providing a signaling generation and transmission method that can be utilized in an IP-based hybrid broadcasting service.

According to another aspect of the present invention, there is provided a method for transmitting signaling data of a hybrid broadcasting service, the method comprising: receiving broadcasting information corresponding to a hybrid broadcasting service using a broadcasting network and a communication network; Generating at least one signaling data corresponding to each of the broadcasting network and the communication network based on the broadcasting information; And transmitting the at least one signaling data to a plurality of component devices for providing the hybrid broadcast service.

In this case, the transmitting step may include transmitting Low Level Signaling (LLS) data corresponding to the broadcasting network among the at least one signaling data to a first component device corresponding to the broadcasting network among the plurality of component devices; And transmitting Service Layer Signaling (SLS) data corresponding to the communication network among the at least one signaling data to a second component device corresponding to the communication network among the plurality of component devices.

In this case, the generating step may generate the LLS data according to an IP packet format including at least one of a SLT (Service List Table) and an RRT (Rating Region Table).

At this time, the LLS data corresponds to IP (Internet Protocol) level signaling data, and may be transmitted to the receiver that receives the hybrid broadcast service before the SLS data.

In this case, the generating step may generate the SLS data to include at least one of configuration information corresponding to the plurality of component devices, content acquisition information corresponding to the hybrid broadcast service, and capability of the receiver.

At this time, the SLS data includes a fragment according to a transmission protocol method corresponding to the hybrid broadcasting service, and can be transmitted based on a session generated according to the transmission protocol method.

In this case, the signaling data transmission method may further include storing the broadcast information and the at least one signaling data.

In this case, the broadcast information may include at least one of broadcast service information corresponding to the plurality of component devices and transmission schedule information for each of the plurality of component devices.

In this case, the transmitting step may generate a transmission processing command corresponding to one of the LLS data and the SLS data based on the transmission schedule information and transmit the at least one signaling data.

The signaling data transmission method may further include repeatedly transmitting the at least one signaling data to at least one of the plurality of component devices based on a predetermined update period of the signaling data.

Also, an apparatus for transmitting signaling data of a hybrid broadcast service according to an embodiment of the present invention includes: a receiver for receiving broadcast information corresponding to a hybrid broadcast service; A signaling data generation unit for generating at least one signaling data corresponding to each of a broadcast network and a communication network based on the broadcast information; And a signaling data transmitter for transmitting the at least one signaling data to a plurality of component devices for providing the hybrid broadcast service.

In this case, the signaling data transmission unit transmits LLS (Low Level Signaling) data corresponding to the broadcasting network among the at least one signaling data to a first component device corresponding to the broadcasting network among the plurality of component devices, ; And an SLS data transmitter for transmitting Service Layer Signaling (SLS) data corresponding to the communication network among the at least one signaling data to a second component device corresponding to the communication network among the plurality of component devices.

In this case, the signaling data generator may generate the LLS data according to an IP packet format including at least one of a SLT (Service List Table) and an RRT (Rating Region Table).

At this time, the LLS data corresponds to IP (Internet Protocol) level signaling data, and may be transmitted to the receiver that receives the hybrid broadcast service before the SLS data.

At this time, the signaling data generation unit may generate the SLS data so as to include at least one of configuration information corresponding to the plurality of component devices, content acquisition information corresponding to the hybrid broadcast service, and capability of the receiver.

At this time, the SLS data includes a fragment according to a transmission protocol method corresponding to the hybrid broadcasting service, and can be transmitted based on a session generated according to the transmission protocol method.

In this case, the signaling data transmission apparatus may further include a signaling database for storing the broadcast information and the at least one signaling data.

In this case, the broadcast information may include at least one of broadcast service information corresponding to the plurality of component devices and transmission schedule information for each of the plurality of component devices.

In this case, the signaling data transmission unit may generate a transmission processing command corresponding to one of the LLS data and the SLS data based on the transmission schedule information, and transmit the at least one signaling data.

In this case, the signaling data transmission apparatus may further include an update unit that repeatedly transmits the at least one signaling data to at least one of the plurality of component devices based on a predetermined update period of the signaling data.

According to the present invention, it is possible to provide a method of generating broadcasting service signaling data and transmitting the broadcasting service signaling data to a receiver so that an IP-based hybrid broadcasting service can be easily provided.

In addition, the present invention can provide a method for efficiently providing broadcasting service signaling data using a broadcasting network and a communication network.

In addition, the present invention can develop a next generation broadcasting service and system in an IP-based broadcasting environment by providing a signaling generation and transmission method that can be utilized in an IP-based hybrid broadcasting service.

1 is a block diagram illustrating a hybrid broadcast service system according to an embodiment of the present invention.
2 is a block diagram showing an example of the signaling data transmission apparatus shown in FIG.
3 is a block diagram illustrating an example of the signaling data transmission unit shown in FIG.
4 is a diagram illustrating a signaling data transmission process according to an embodiment of the present invention.
5 is a flowchart illustrating a method of transmitting signaling data of a hybrid broadcasting service according to an embodiment of the present invention.
6 is a detailed flowchart illustrating a signaling data transmission method of a hybrid broadcast service according to an embodiment of the present invention.
7 is a block diagram illustrating a computer system in accordance with an embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a hybrid broadcast service system according to an embodiment of the present invention.

1, a hybrid broadcast service system according to an embodiment of the present invention includes a broadcast schedule information generation apparatus 101, a content server 102, a signaling data transmission apparatus 103, a broadcast service encoding apparatus 104, A broadcast transmission processing apparatus 105, a broadcast multiplexing apparatus 106, a broadcast transmission apparatus 107, a communication service encoding apparatus 108, a communication transmission server 109, a broadcast network 110 and a communication network 120.

At this time, the hybrid broadcast service system according to an embodiment of the present invention may correspond to a transmission system for providing a hybrid broadcast service. In addition, the hybrid broadcast service system according to an embodiment of the present invention may correspond to a structure of a signaling data generation apparatus 103 for generating signaling data and a broadcast transmission apparatus related thereto.

The broadcast schedule information generation device 101 generates transmission schedule information for each component constituting the information on the hybrid service configuration and the service, and transmits the generated transmission schedule information to the content server 102 and the signaling data transmission device 103.

The content server 102 receives the schedule information and the component configuration information from the broadcast schedule information generation device 101. Thereafter, the content constituting the broadcast service is encoded in accordance with the broadcast schedule information and is transmitted to the broadcast network 110 and the communication network 120. The broadcast service encoding apparatus 104 or the communication service encoding apparatus 108, .

The broadcast service encoding apparatus 104 encodes the content received from the content server 102 into a codec suitable for the broadcast service, and transmits the encoded content to the broadcast transmission processing apparatus 105.

The communication service encoding device 108 receives the content to be transmitted from the content server 102 via the communication network 120 and encodes the content in a form suitable for the communication service protocol to transmit the content to the communication network 120 File or streaming data.

The signaling data generation device 103 receives information on the component information of the broadcasting service and the transmission method of each component from the broadcasting schedule information generation device 101 and generates the related signaling data and transmits the signaling data to the broadcast transmission processing device 105. [ And to the broadcast multiplexer 106. [ In addition, if signaling data is set to be transmitted to the broadcast related information received from the broadcast schedule information generating apparatus 101 through the communication network 120, the signaling data is also transmitted to the communication transmission server 109.

The broadcast transmission processing apparatus 105 packetizes the content encoded by the broadcast service encoding apparatus 104 in a form suitable for a broadcast transmission protocol according to a broadcast service transmission method. Thereafter, the related metadata is generated and transmitted to the broadcast multiplexing apparatus 106.

The multiplexer 106 multiplexes the signaling data received from the signaling data generator 103 and the broadcast content received from the broadcast transmission processor 105 and transmits the multiplexed signal to the broadcast transmitter 107.

The broadcast transmission apparatus 107 transmits the multiplexed broadcast stream to the apparatus that receives the broadcast through the broadcast network 110.

The communication transmission server 109 receives the data generated by the communication service encoder 108 and the signaling data generated by the signaling data generator 103, respectively. Then, the content, streaming data, and signaling data are transmitted to the receiving device through the communication network 120 at the request of the receiving device.

Unlike the method in which the signaling data generated in the signaling data generation device 103 is transmitted through the broadcasting network 110, the communication transmission server 109 has a function of transmitting data suitable for the request of the receiving device to the receiving device . ≪ / RTI >

2 is a block diagram showing an example of the signaling data transmission apparatus shown in FIG.

Referring to FIG. 2, the signaling data transmission apparatus 103 shown in FIG. 1 includes a receiving unit 210, a signaling data generating unit 220, a signaling data transmitting unit 230, a signaling database 240, ).

The receiving unit 210 receives broadcasting information corresponding to the hybrid broadcasting service.

At this time, the broadcast information may be generated from the broadcast schedule information generating apparatus, and the received broadcast information may be stored in the signaling database 240.

At this time, the broadcast information may include at least one of broadcast service information corresponding to a plurality of component devices and transmission schedule information for each of a plurality of component devices.

The signaling data generation unit 220 generates at least one signaling data corresponding to each of the broadcasting network and the communication network based on the broadcasting information.

In this case, the signaling data generation unit 220 may be divided into a part for generating LLS data internally and a part for generating SLS data. The signaling data generation unit 220 may analyze LBS data or SLS data Can be generated.

At this time, LLS data may be generated according to an IP packet type including at least one of a SLT (Service List Table) and an RRT (Rating Region Table).

In this case, the SLT can transmit signaling information related to fast channel scanning and bootstrapping for service acquisition. In the conventional broadcasting system, the PAT (Program Association Table) of the MPEG-2 system, the ATSC-Mobile DTV standard (FIC) < / RTI > That is, in ATSC 3.0, it is possible to provide a fast channel scanning function by providing a list of all services that can be received by the receiver through the SLT transmitted as LLS data, and by providing bootstrap information, So that the SLS data can be found.

In this case, the bootstrap information may be different according to a broadcasting service transmission protocol for delivering broadcast media contents. For example, in the case of ROUTE (Dynamic Adaptive Streaming over Http) / DASH, a destination IP, a destination port, and a TSI (Transport Session Identifier) for delivering SLS data may be provided have. In the case of MMT (MPEG Media Transport) / MPU (Media Processing Unit) transmission, a destination IP, a destination port, and a packet_id of an MMTP (MPEG Media Transport Protocol) channel for delivering SLS data may be provided.

The RRT may also correspond to a table for delivering the signaling data needed for the local broadcast service.

At this time, the LLS data corresponds to the signaling data at the IP (Internet Protocol) level, and may be transmitted to the receiver that receives the hybrid broadcasting service before the SLS data. That is, the LLS data may be signaling information of the IP level that is received before the SLS data in the receiver and obtained before the session for service reception is completed. For example, in ATSC 3.0, LLS data can consist of IP packets that are passed to IP address 224.0.23.60, Port number 4937.

This method of delivering IP level signaling may be a method defined to overcome the disadvantage that the service acquisition time may become longer in the transmission of IP-based broadcasting service. In the future, other IP-based broadcasting standards other than ATSC 3.0, Is likely to be used. In addition, SLT, RRT, and the like are defined as the signaling information currently transmitted in the LLS data of ATSC 3.0, but new signaling tables may be defined in the future according to the necessity of providing the service.

At this time, the SLS data may be generated to include at least one of the configuration information corresponding to the plurality of component devices, the content acquisition information corresponding to the hybrid broadcast service, and the performance of the receiver. That is, the SLS data may define information necessary for providing a broadcasting service such as component information constituting each service, a content acquisition method and a performance of a receiver required for providing a service, for each broadcasting service, .

By using such SLS data, the receiver can parse only the service selected by the user without parsing all received broadcast services, so that the receiver resources can be used more efficiently. In addition, the SLS data may be transmitted to the receiver by using a communication network as well as the broadcasting network. In order to support the transmission of the communication network, a URL capable of acquiring data related to the SLS data may be transmitted to the LLS data.

At this time, the SLS data may include signaling-related data suitable for each transmission scheme according to a broadcasting transmission scheme.

For example, when a ROUTE transmission method is used in a broadcast transmission processing apparatus, SLS data including a USBD (User Service Bundle Description), an S-TSID (Service-Level Transport Session Instance Description), and MPD (Media Presentation Description) Can be generated. In such a case, the MPD may be acquired from the broadcast service encoding apparatus capable of processing the DASH and stored in the signaling database 240 together with other SLS data.

For example, when using the MMTP transmission method in the broadcast transmission processing apparatus, the USBD referring to the MPT (MMT Package Table) message, which is the MMT self-defined signaling, includes the package ID and the location information of the Assets to which the service belongs And an MP table having an SLS data.

The signaling data transmission unit 230 transmits at least one signaling data to a plurality of component devices for providing a hybrid broadcasting service.

For example, a broadcasting transmission processing apparatus for packetizing content encoded in a form suitable for a broadcasting service in a form suitable for a broadcasting transmission protocol according to a broadcasting service transmission method, or a broadcasting multiplexing apparatus for multiplexing and transmitting broadcasting contents, Lt; / RTI >

In another example, a signaling data may be transmitted to a communication transmission server that provides contents through a communication network in response to a request of a receiving device receiving the broadcasting service.

At this time, based on the transmission schedule information, a transmission processing command corresponding to one of the LLS data and the SLS data may be generated to transmit at least one signaling data. For example, in order that LLS data and SLS data can be transmitted to at least one of a broadcast multiplexing apparatus, a broadcast transmission processing apparatus, and a communication transmission server at a proper timing, a transmission processing command is transmitted to a module responsible for transmission of LLS data and a transmission To the module responsible for the data.

At this time, LLS (Low Level Signaling) data corresponding to a broadcasting network among at least one signaling data can be transmitted to a first component device corresponding to a broadcasting network among a plurality of component devices.

For example, upon receiving a transmission processing command for the LLS data, the signaling database 240 can obtain the signaling data constituting the LLS data. Thereafter, the LLS data obtained in the signaling database 240 may be transmitted to the broadcast transmission processing apparatus or the broadcast multiplexing apparatus. It is also possible to stop the transmission in accordance with the transmission processing command.

At this time, SLS (Service Layer Signaling) data corresponding to a communication network among at least one signaling data can be transmitted to a second component device corresponding to a communication network among a plurality of component devices.

For example, upon receiving a transmission processing command for SLS data, the signaling database 240 may obtain the signaling data constituting the SLS data. Thereafter, the SLS data obtained in the signaling database 240 may be transmitted to a broadcast transmission processing apparatus, a broadcast multiplexing apparatus, or a communication transmission server. It is also possible to stop the transmission in accordance with the transmission processing command.

The signaling database 240 stores broadcast information and at least one signaling data. For example, signaling data corresponding to the LLS data and the SLS data generated corresponding to the broadcast service, respectively, may be stored.

At this time, data corresponding to the LLS data and the SLS data can be separately stored. By separately storing the LLS data and the data corresponding to the SLS data, it is possible to more easily provide the signaling data when providing the LLS data and the SLS data according to the transmission processing command.

In addition, it may store the broadcast information received from the broadcast schedule information generating apparatus. For example, it is possible to store and manage environment variables for management system operation together with broadcasting schedule information and broadcast service information.

In addition, the signaling data stored in the signaling database 240 may be transmitted to the broadcast schedule information generating device so that the user can look up information related to the broadcast schedule.

It is also possible to store broadcasting schedule information and broadcasting service related information created or modified by the user.

The update unit 250 repeatedly transmits at least one signaling data to at least one of the plurality of component devices based on a predetermined update period of the signaling data.

For example, the data related to the LLS data stored in the signaling database 240 may be repeatedly transmitted to the broadcast multiplexer in a multicast manner according to a predetermined update period of the signaling information set in the signaling database 240.

As another example, the broadcasting schedule information stored in the signaling database 240 may be analyzed and the data related to the SLS data may be repeatedly transmitted to the communication transmission server through the communication network.

The use of the signaling data transmission device of the hybrid broadcasting service can provide a method of generating broadcasting service signaling data and delivering it to a receiver so that the IP-based hybrid broadcasting service can be easily provided.

Also, it is possible to provide a method of efficiently providing broadcasting service signaling data using a broadcasting network and a communication network.

Also, by providing a signaling generation and transmission method that can be utilized in an IP-based hybrid broadcasting service, a next generation broadcasting service and system can be developed in an IP-based broadcasting environment.

3 is a block diagram illustrating an example of the signaling data transmission unit shown in FIG.

Referring to FIG. 3, the signaling data transmission unit 230 shown in FIG. 2 includes an LLS data transmission unit 310 and an SLS data transmission unit 320.

The LLS data transmitting unit 310 transmits LLS (Low Level Signaling) data corresponding to a broadcasting network among at least one signaling data to a first component device corresponding to a broadcasting network among a plurality of component devices.

For example, when the LLS data transmitting unit 310 receives the transmission processing command for the LLS data, it can acquire the signaling data constituting the LLS data in the signaling database. Thereafter, the LLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus or the broadcast multiplexing apparatus. It is also possible to stop the transmission in accordance with the transmission processing command.

The SLS data transmission unit 320 transmits Service Layer Signaling (SLS) data corresponding to a communication network among at least one signaling data to a second component device corresponding to a communication network among a plurality of component devices.

For example, when the SLS data transmission unit 320 receives a transmission processing command for SLS data, it can acquire signaling data constituting SLS data in the signaling database. Thereafter, the SLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus, the broadcast multiplexing apparatus, or the communication transmission server. It is also possible to stop the transmission in accordance with the transmission processing command.

4 is a diagram illustrating a signaling data transmission process according to an embodiment of the present invention.

4, the signaling data transmission apparatus 400 includes a signaling data generation unit 410, an LLS data transmission unit 420, and a signaling data transmission unit 420. The signaling data transmission unit 400 includes a signaling data generation unit 410, An SLS data transmission unit 430, a signaling database 440, and the like.

First, the signaling data generator 410 generates signaling data that can be interpreted by a receiving apparatus that receives the broadcast service, and stores the signaling data in the signaling database 440.

In this case, in order to generate signaling data, broadcast schedule information and broadcast service information already generated from the broadcast schedule information generating apparatus and stored in the signaling database 440 may be used.

Thereafter, the signaling data generation unit 410 is divided into an LLS data generation module 411 for internally generating LLS data and an SLS data generation module 412 for generating SLS data. It is possible to generate the signaling data corresponding to the LLS data or the signaling data corresponding to the SLS data.

In this case, the LLS data includes SLT, RRT, and the like. In the case of SLS data, signaling-related data suitable for each transmission scheme is generated according to a transmission scheme used in the broadcast transmission processing apparatus. For example, when the ROUTE transmission method is used in the broadcast transmission processing apparatus, USBD, S-TSID, MPD, and the like can be generated as SLS data. In this case, the MPD may be acquired from the broadcasting service encoding apparatus capable of processing the DASH, and may be stored in the signaling database 440 together with other SLS data generated by the signaling data generation unit 410.

In addition, the signaling data generation unit 410 transmits a transmission processing command to the LLS data transmission unit 420 and the SLS data transmission unit 420 so that the LLS data and the SLS data can be transmitted to the broadcast multiplexing apparatus, the broadcast transmission processing apparatus, To the transmission unit 430.

The LLS data transfer unit 420 reads the LLS related data 441 corresponding to the LLS data in the signaling database 440 and transmits the LLS related data 441 to the signaling database 440. [ Lt; / RTI >

In addition, the LLS-related data 441 stored in the signaling database 440 may be repeatedly transmitted to the broadcast multiplexer in a multicast manner according to the update period of the signaling information preset in the signaling database 440.

In this case, the SLS data transmission unit 430 reads the SLS-related data 442 corresponding to the SLS data in the signaling database 440, Lt; / RTI >

In addition, SLS-related data 442 stored in the signaling database 440 may be transmitted to the broadcast transmission processing apparatus. In this case, similarly to the LLS data transmitting unit 420, the data can be repeatedly transmitted according to the update period of the signaling information preset in the signaling database 440.

In addition, if the broadcasting schedule information stored in the signaling database 440 is analyzed and the SLS-related data 442 is set to be transmitted through the communication network, the SLS data is transmitted to the communication transmission server.

At this time, the signaling database 440 can manage broadcast schedule information, broadcast service information, and environment variables for operating the management system, which are received from the broadcast schedule information generating apparatus.

Also, the signaling data stored in the signaling database 440 may be transmitted to the broadcast schedule information generating device so that the user can look up preset information related to the broadcast schedule. In addition, broadcast schedule and broadcast service related information created or modified by the user can be stored in the signaling database 440.

5 is a flowchart illustrating a method of transmitting signaling data of a hybrid broadcasting service according to an embodiment of the present invention.

Referring to FIG. 5, a signaling data transmission method of a hybrid broadcasting service according to an embodiment of the present invention receives broadcasting information corresponding to a hybrid broadcasting service (S510).

At this time, the broadcast information may be generated from the broadcast schedule information generating apparatus, and the received broadcast information may be stored in the signaling database.

At this time, the broadcast information may include at least one of broadcast service information corresponding to a plurality of component devices and transmission schedule information for each of a plurality of component devices.

In addition, the signaling data transmission method of the hybrid broadcasting service according to an embodiment of the present invention generates at least one signaling data corresponding to each of the broadcasting network and the communication network based on the broadcasting information (S520).

In this case, the signaling data generation unit for generating signaling data may be divided into a part for generating LLS data internally and a part for generating SLS data. The signaling data generation unit analyzes the information about the broadcasting service included in the broadcasting information and generates LLS data or SLS data Lt; / RTI >

At this time, LLS data may be generated according to an IP packet type including at least one of a SLT (Service List Table) and an RRT (Rating Region Table).

In this case, the SLT can transmit signaling information related to fast channel scanning and bootstrapping for service acquisition. In the conventional broadcasting system, the PAT (Program Association Table) of the MPEG-2 system, the ATSC-Mobile DTV standard (FIC) < / RTI > That is, in ATSC 3.0, it is possible to provide a fast channel scanning function by providing a list of all services that can be received by the receiver through the SLT transmitted as LLS data, and by providing bootstrap information, So that the SLS data can be found.

In this case, the bootstrap information may be different according to a broadcasting service transmission protocol for delivering broadcast media contents. For example, in the case of ROUTE (Dynamic Adaptive Streaming over Http) service, a destination IP, a destination port, and a TSI (Transport Session Identifier) for delivering SLS data may be provided have. In the case of MMT (MPEG Media Transport) / MPU (Media Processing Unit) transmission, a destination IP, a destination port, and a packet_id of an MMTP (MPEG Media Transport Protocol) channel for delivering SLS data may be provided.

The RRT may also correspond to a table for delivering the signaling data needed for the local broadcast service.

At this time, the LLS data corresponds to the signaling data at the IP (Internet Protocol) level, and may be transmitted to the receiver that receives the hybrid broadcasting service before the SLS data. That is, the LLS data may be signaling information of the IP level that is received before the SLS data in the receiver and obtained before the session for service reception is completed. For example, in ATSC 3.0, LLS data can consist of IP packets that are passed to IP address 224.0.23.60, Port number 4937.

This method of delivering IP level signaling may be a method defined to overcome the disadvantage that the service acquisition time may become longer in the transmission of IP-based broadcasting service. In the future, other IP-based broadcasting standards other than ATSC 3.0, Is likely to be used. In addition, SLT, RRT, and the like are defined as the signaling information currently transmitted in the LLS data of ATSC 3.0, but new signaling tables may be defined in the future according to the necessity of providing the service.

At this time, the SLS data may be generated to include at least one of the configuration information corresponding to the plurality of component devices, the content acquisition information corresponding to the hybrid broadcast service, and the performance of the receiver. That is, the SLS data may define information necessary for providing a broadcasting service such as component information constituting each service, a content acquisition method and a performance of a receiver required for providing a service, for each broadcasting service, .

By using such SLS data, the receiver can parse only the service selected by the user without parsing all received broadcast services, so that the receiver resources can be used more efficiently. In addition, the SLS data may be transmitted to the receiver by using a communication network as well as the broadcasting network. In order to support the transmission of the communication network, a URL capable of acquiring data related to the SLS data may be transmitted to the LLS data.

At this time, the SLS data may include signaling-related data suitable for each transmission scheme according to a broadcasting transmission scheme.

For example, when a ROUTE transmission method is used in a broadcast transmission processing apparatus, SLS data including a USBD (User Service Bundle Description), an S-TSID (Service-Level Transport Session Instance Description), and MPD (Media Presentation Description) Can be generated. In such a case, the MPD may be acquired from a broadcast service encoding apparatus capable of processing the DASH and stored in the signaling database together with other SLS data.

For example, when using the MMTP transmission method in the broadcast transmission processing apparatus, the USBD referring to the MPT (MMT Package Table) message, which is the MMT self-defined signaling, includes the package ID and the location information of the Assets to which the service belongs And an MP table having an SLS data.

In addition, the signaling data transmission method of the hybrid broadcast service according to an embodiment of the present invention transmits at least one signaling data to a plurality of component devices for providing a hybrid broadcast service at step S530.

For example, a broadcasting transmission processing apparatus for packetizing content encoded in a form suitable for a broadcasting service in a form suitable for a broadcasting transmission protocol according to a broadcasting service transmission method, or a broadcasting multiplexing apparatus for multiplexing and transmitting broadcasting contents, Lt; / RTI >

In another example, a signaling data may be transmitted to a communication transmission server that provides contents through a communication network in response to a request of a receiving device receiving the broadcasting service.

At this time, based on the transmission schedule information, a transmission processing command corresponding to one of the LLS data and the SLS data may be generated to transmit at least one signaling data. For example, in order that LLS data and SLS data can be transmitted to at least one of a broadcast multiplexing apparatus, a broadcast transmission processing apparatus, and a communication transmission server at a proper timing, a transmission processing command is transmitted to a module responsible for transmission of LLS data and a transmission To the module responsible for the data.

At this time, LLS (Low Level Signaling) data corresponding to a broadcasting network among at least one signaling data can be transmitted to a first component device corresponding to a broadcasting network among a plurality of component devices.

For example, upon receiving a transmission processing command for LLS data, signaling data constituting LLS data in the signaling database can be obtained. Thereafter, the LLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus or the broadcast multiplexing apparatus. It is also possible to stop the transmission in accordance with the transmission processing command.

At this time, SLS (Service Layer Signaling) data corresponding to a communication network among at least one signaling data can be transmitted to a second component device corresponding to a communication network among a plurality of component devices.

For example, upon receiving a transmission processing command for SLS data, signaling data constituting SLS data in the signaling database can be obtained. Thereafter, the SLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus, the broadcast multiplexing apparatus, or the communication transmission server. It is also possible to stop the transmission in accordance with the transmission processing command.

In addition, although not shown in FIG. 5, the signaling data transmission method of a hybrid broadcast service according to an embodiment of the present invention stores broadcast information and at least one signaling data in a signaling database. For example, signaling data corresponding to the LLS data and the SLS data generated corresponding to the broadcast service, respectively, may be stored.

At this time, data corresponding to the LLS data and the SLS data can be separately stored. By separately storing the LLS data and the data corresponding to the SLS data, it is possible to more easily provide the signaling data when providing the LLS data and the SLS data according to the transmission processing command.

In addition, it may store the broadcast information received from the broadcast schedule information generating apparatus. For example, it is possible to store and manage environment variables for management system operation together with broadcasting schedule information and broadcast service information.

Also, the signaling data stored in the signaling database may be transmitted to the broadcast schedule information generating device so that the user can look up information related to the broadcast schedule.

It is also possible to store broadcasting schedule information and broadcasting service related information created or modified by the user.

In addition, although not shown in FIG. 5, a signaling data transmission method of a hybrid broadcasting service according to an embodiment of the present invention includes transmitting at least one signaling data to at least one of a plurality of component devices Repeatedly transmit in one.

For example, the data related to the LLS data stored in the signaling database can be repeatedly transmitted to the broadcast multiplexer in a multicast manner according to a predetermined update period of the signaling information set in the signaling database.

In another example, the broadcasting schedule information stored in the signaling database may be analyzed and the SLS data may be repeatedly transmitted to the communication transmission server through the communication network.

Based on the signaling data transmission method of the hybrid broadcasting service, it is possible to provide a method of generating broadcasting service signaling data and delivering it to a receiver so as to facilitate providing an IP-based hybrid broadcasting service.

Also, it is possible to provide a method of efficiently providing broadcasting service signaling data using a broadcasting network and a communication network.

Also, by providing a signaling generation and transmission method that can be utilized in an IP-based hybrid broadcasting service, a next generation broadcasting service and system can be developed in an IP-based broadcasting environment.

6 is a detailed flowchart illustrating a signaling data transmission method of a hybrid broadcast service according to an embodiment of the present invention.

Referring to FIG. 6, a signaling data transmission method of a hybrid broadcast service according to an embodiment of the present invention receives broadcast information including broadcast service information and transmission schedule information (S610).

At this time, the broadcast information may be generated from the broadcast schedule information generating apparatus, and the received broadcast information may be stored in the signaling database.

Thereafter, the configuration information of the plurality of component devices is acquired based on the broadcast service information (S620).

At this time, the broadcast information may include at least one of broadcast service information corresponding to a plurality of component devices and transmission schedule information for each of a plurality of component devices.

Thereafter, LLS data and SLS data are generated based on the configuration information of a plurality of component devices (S630).

In this case, the signaling data generation unit for generating signaling data may be divided into a part for generating LLS data internally and a part for generating SLS data. The signaling data generation unit analyzes the information about the broadcasting service included in the broadcasting information and generates LLS data or SLS data Lt; / RTI >

At this time, LLS data may be generated according to an IP packet type including at least one of a SLT (Service List Table) and an RRT (Rating Region Table). Also, the LLS data corresponds to signaling data at the IP (Internet Protocol) level, and may be transmitted to the receiver that receives the hybrid broadcast service before the SLS data.

At this time, the SLS data may be generated to include at least one of the configuration information corresponding to the plurality of component devices, the content acquisition information corresponding to the hybrid broadcast service, and the performance of the receiver. In addition, the SLS data may include signaling-related data suitable for each transmission scheme according to a broadcasting transmission scheme.

Thereafter, the LLS data is transmitted to the component corresponding to the broadcasting network (S640).

For example, upon receiving a transmission processing command for LLS data, signaling data constituting LLS data in the signaling database can be obtained. Thereafter, the LLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus or the broadcast multiplexing apparatus. It is also possible to stop the transmission in accordance with the transmission processing command.

Thereafter, it is determined whether or not the communication network is set to be used (S645).

For example, it is possible to confirm whether or not the broadcast related information received from the broadcast schedule information generating apparatus is set to be transmitted through the communication network.

If it is determined in step S645 to use the communication network, the SLS data is transmitted to the component corresponding to the communication network in step S650.

For example, upon receiving a transmission processing command for SLS data, signaling data constituting SLS data in the signaling database can be obtained. Thereafter, the SLS data acquired from the signaling database can be transmitted to the broadcast transmission processing apparatus, the broadcast multiplexing apparatus, or the communication transmission server. It is also possible to stop the transmission in accordance with the transmission processing command.

As a result of the determination in step S645, if the communication network is not set to be used, the broadcasting service is provided to the component corresponding to the communication network without transmitting the signaling data.

7 is a block diagram illustrating a computer system in accordance with an embodiment of the present invention.

Referring to FIG. 7, embodiments of the present invention may be implemented in a computer system such as a computer-readable recording medium. 7, the computer system 700 includes one or more processors 710, a memory 730, a user input device 740, a user output device 750, and a storage 730, which communicate with one another via a bus 720. [ (760). In addition, the computer system 700 may further include a network interface 770 coupled to the network 780. The processor 710 may be a central processing unit or a semiconductor device that executes the processing instructions stored in the memory 730 or the storage 760. [ Memory 730 and storage 760 may be various types of volatile or non-volatile storage media. For example, the memory may include ROM 731 or RAM 732.

Thus, embodiments of the invention may be embodied in a computer-implemented method or in a non-volatile computer readable medium having recorded thereon instructions executable by the computer. When computer readable instructions are executed by a processor, the instructions readable by the computer are capable of performing the method according to at least one aspect of the present invention.

The signaling data transmission method of the hybrid broadcast service according to the present invention may be implemented in the form of a program command which can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and configured for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Includes all types of hardware devices that are specially configured to store and execute magneto-optical media and program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like. Such a hardware device may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the signaling data transmission method and apparatus using the signaling data according to the present invention are not limited to the configuration and method of the embodiments described above, but various modifications may be made to the embodiments. All or some of the embodiments may be selectively combined.

101: Broadcast schedule information generating device 102: Content server
103, 400: Signaling data transmission apparatus 104: Broadcast service coding apparatus
105: broadcast transmission processing device 106: broadcast multiplexing device
107: broadcast transmission device 108: communication service encoding device
109: communication transmission server 110:
120: communication network 210:
220, 410: Signaling data generation unit 230: Signaling data transmission unit
240, 440: Signaling database 250:
310, 420: LLS data transmission unit 320, 430: SLS data transmission unit
411: LLS data generation module 412: SLS data generation module
441: LLS-related data 442: SLS-related data
700: computer system 710: processor
720: bus 730: memory
731: ROM 732: RAM
740: User input device 750: User output device
760: Storage 770: Network Interface
780: Network

Claims (20)

Receiving broadcasting information corresponding to a hybrid broadcasting service using a broadcasting network and a communication network;
Generating at least one signaling data corresponding to each of the broadcasting network and the communication network based on the broadcasting information; And
Transmitting the at least one signaling data to a plurality of component devices for providing the hybrid broadcast service
And transmitting the signaling data to the hybrid broadcasting service. The method according to claim 1,
The transmitting step
Transmitting Low Level Signaling (LLS) data corresponding to the broadcasting network among the at least one signaling data to a first component device corresponding to the broadcasting network among the plurality of component devices; And
Transmitting Service Layer Signaling (SLS) data corresponding to the communication network among the at least one signaling data to a second component device corresponding to the communication network among the plurality of component devices
And transmitting the signaling data to the hybrid broadcasting service. The method of claim 2,
The generating step
Wherein the LLS data is generated according to an IP packet type including at least one of a SLT (Service List Table) and an RRT (Rating Region Table). The method of claim 3,
The LLS data
Wherein the signaling data is transmitted prior to the SLS data to a receiver that receives the hybrid broadcasting service, the signaling data corresponding to IP (Internet Protocol) level signaling data. The method of claim 2,
The generating step
And generating the SLS data to include at least one of configuration information corresponding to the plurality of component devices, content acquisition information corresponding to the hybrid broadcast service, and capability of the receiver. Way. The method of claim 5,
The SLS data
Wherein the signaling data includes a fragment according to a transport protocol scheme corresponding to the hybrid broadcast service and is transmitted based on a session generated according to the transport protocol scheme. The method of claim 2,
The signaling data transmission method
Further comprising the step of storing the broadcast information and the at least one signaling data. The method of claim 7,
The broadcast information
Wherein the at least one of the plurality of component devices comprises at least one of broadcast service information corresponding to the plurality of component devices and transmission schedule information for each of the plurality of component devices. The method of claim 6,
The transmitting step
And generating a transmission processing command corresponding to one of the LLS data and the SLS data based on the transmission schedule information to transmit the at least one signaling data. The method of claim 8,
The signaling data transmission method
And repeatedly transmitting the at least one signaling data to at least one of the plurality of component devices based on a predetermined update period of the signaling data. A receiver for receiving broadcast information corresponding to the hybrid broadcast service;
A signaling data generation unit for generating at least one signaling data corresponding to each of a broadcast network and a communication network based on the broadcast information; And
A signaling data transmission unit for transmitting the at least one signaling data to a plurality of component devices for providing the hybrid broadcast service;
And transmitting the signaling data to the hybrid broadcasting service provider. The method of claim 11,
The signaling data transmitter
An LLS data transmitting unit for transmitting LLS (Low Level Signaling) data corresponding to the broadcasting network among the at least one signaling data to a first component device corresponding to the broadcasting network among the plurality of component devices; And
(SLS) data transferring unit for transferring SLS (Service Layer Signaling) data corresponding to the communication network among the at least one signaling data to a second component device corresponding to the communication network among the plurality of component devices,
And transmitting the signaling data to the hybrid broadcasting service provider. The method of claim 12,
The signaling data generation unit
Wherein the LLS data is generated according to an IP packet type including at least one of a SLT (Service List Table) and an RRT (Rating Region Table). 14. The method of claim 13,
The LLS data
Wherein the SLS data is transmitted to a receiver that receives the hybrid broadcasting service before the SLS data, corresponding to signaling data at an IP (Internet Protocol) level. The method of claim 12,
The signaling data generation unit
And generating the SLS data to include at least one of configuration information corresponding to the plurality of component devices, content acquisition information corresponding to the hybrid broadcast service, and capability of the receiver. Device. 16. The method of claim 15,
The SLS data
Wherein the signaling data includes a fragment according to a transmission protocol scheme corresponding to the hybrid broadcasting service and is transmitted based on a session generated according to the transmission protocol scheme. The method of claim 12,
The signaling data transmission apparatus
Further comprising: a signaling database for storing the broadcast information and the at least one signaling data. 18. The method of claim 17,
The broadcast information
Wherein the at least one of the plurality of component devices includes at least one of broadcast service information corresponding to the plurality of component devices and transmission schedule information for each of the plurality of component devices. 18. The method of claim 16,
The signaling data transmitter
And generates a transmission processing command corresponding to one of the LLS data and the SLS data based on the transmission schedule information to transmit the at least one signaling data. 19. The method of claim 18,
The signaling data transmission apparatus
Further comprising an update unit for repeatedly transmitting the at least one signaling data to at least one of the plurality of component devices based on a predetermined update period of the signaling data.
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