KR20160000722A - Method and appratus for transmitting and receiving multimedia content using hybrid network in a communication system - Google Patents

Abstract

A method for receiving combined contents in a communication system according to the present embodiment, includes a process of receiving signaling information which includes the TCP connection setting information of an additional content server from a network entity, a process of connecting the additional content server and a TCP session by using the TCP connection setting information, and a process of receiving additional contents by the connected TCP session.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for transmitting / receiving multimedia contents through a heterogeneous network in a communication system,

The present disclosure relates to a method and apparatus for providing multimedia content via different networks.

2. Description of the Related Art In a conventional broadcast network, it is common to use an MPEG-2 TS (Moving Picture Experts Group-2 Transport Stream) for transmission of multimedia contents. The MPEG-2 TS is used as a typical transmission technique for transmitting a bit stream in which a plurality of broadcast programs (a plurality of coded video bit streams) are multiplexed in a transmission environment with errors. For example, MPEG-2 TS is suitable for use in digital TV broadcasting in the multimedia age. However, MPEG-2 TS has some limitations in supporting multimedia services. In other words, the MPEG-2 TS can not be used for unidirectional communication, inefficiency of transmission due to fixed frame size, transmission protocol specialized for audio / video, and unnecessary overhead when transmitting using Internet Protocol (IP) And so on. Therefore, MPEG proposes a new MMT (MPEG MEDIA Transport) standard as one of the multimedia transmission technologies for supporting multimedia services based on MPEG technology. In particular, the MMT standard has been proposed to overcome the limitations of MPEG-2 TS.

For example, the MMT standard may be applied to efficiently transmit composite content over a heterogeneous network. Here, the composite content refers to a set of contents having multimedia elements such as video / audio / application / widget. The heterogeneous network refers to a network in which a broadcast network and a communication network are mixed.

In addition, the MMT standard defines a more friendly transmission technology for IP, which is becoming a basic technology in transmission networks for multimedia services. That is, the MMT standard is for providing an efficient MPEG transmission technology in a multimedia service environment that is typically based on IP, and is continuously being studied and standardized.

Embodiments of the present disclosure provide methods and apparatus for providing composite network content in a communication system.

Embodiments of the present disclosure provide a method and apparatus for providing main content over a broadcast network in a communication system and providing additional content over a broadband communication network.

The embodiments of the present disclosure provide a method and apparatus for providing composite network content in a TCP-based packet in a communication system.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present disclosure provide a method and apparatus for providing information indicating that a composite network content service is provided in a communication system.

Embodiments of the present disclosure provide a method and apparatus for providing URL information of an HTTP server capable of providing TCP connection establishment information of an additional content server in connection with a composite network content service in a communication system.

Embodiments of the present disclosure provide a method and apparatus for providing TCP connection establishment information of an additional content server in connection with a composite network content service in a communication system.

The embodiments of the present disclosure provide a method and apparatus for packetizing a composite network content service on a TCP basis in a communication system.

Embodiments of the present disclosure provide a method and apparatus for providing information indicating whether a packet includes a plurality of pieces of information when packetizing a composite network content service in a communication system.

Embodiments of the present disclosure provide a method and apparatus for providing relationship information between content and additional content when providing a composite network content service in a communication system.

A method for receiving a composite content in a communication system according to an embodiment of the present disclosure includes the steps of receiving signaling information including TCP connection setting information of an additional content server from a network entity, Connecting a content server with a TCP session, and receiving additional content through the connected TCP session.

In the communication system according to an embodiment of the present disclosure, a method of providing a composite content by a broadcast server includes generating a main content, transmitting the generated main content to a client, And transmitting the generated composite network content service indication information to a client.

A client apparatus for receiving compound contents in a communication system according to an embodiment of the present disclosure includes a transmitter and receiver for receiving signaling information including TCP connection setting information of an additional content server from a network entity, And a controller for connecting the additional content server with the TCP session and receiving the additional content through the connected transceiver through the connected TCP session.

The broadcast server for providing the composite content in the communication system according to the embodiment of the present disclosure includes a controller for generating main content and generating signaling information including the composite network content service indication information, And transmitting / receiving the generated composite network contents service indication information to the client.

1 is a diagram illustrating an MMT data model according to the present disclosure;
FIG. 2 is a diagram schematically illustrating how an MMT transmitting entity and an MMT receiving entity according to the present disclosure transmit and receive an MMT package,
3 is a diagram illustrating an ISO-based media file format in which an MPU according to the present disclosure is encapsulated;
4 is a diagram illustrating a protocol stack for MPU transmission in accordance with the present disclosure;
5 is a diagram illustrating a method for transmitting and receiving a composite content based on TCP according to the first embodiment of the present disclosure;
FIG. 6 is a view for explaining message transmission / reception for each entity for transmitting / receiving composite contents based on TCP according to the first embodiment of the present disclosure;
7 is a diagram illustrating a method of transmitting and receiving a composite content based on TCP according to a second embodiment of the present disclosure;
8 is a view for explaining message transmission / reception for each entity for transmitting / receiving composite contents based on TCP according to the second embodiment of the present disclosure;
9 is a diagram illustrating a message transmission / reception between a client and an additional content server according to the present disclosure;
10 is a diagram illustrating a method of packetizing an MPU based on an ISO based multimedia file format according to the present disclosure;
11 is a diagram illustrating a method of packetizing signaling information in accordance with one embodiment of the present disclosure;
12 is a view for explaining the operation of the client according to the first embodiment of the present disclosure;
13 is a view for explaining the operation of the client according to the second embodiment of the present disclosure;
14 is a diagram illustrating a configuration of a network entity apparatus according to an embodiment of the present disclosure;
15 is a diagram illustrating a configuration of a client apparatus according to an embodiment of the present disclosure;

In the following description of the present disclosure, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present disclosure. Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Although the embodiments of the present disclosure described below are separate for convenience of description, at least two embodiments can be combined and performed within a range where they do not collide with each other.

Hereinafter, the terms described below are defined in consideration of the functions in the embodiments of the present disclosure, which may vary depending on the user, the intention or custom of the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The embodiments of the present disclosure can make various changes and have various embodiments, and specific embodiments are described in detail by exemplifying the drawings. It should be understood, however, that the present disclosure is not intended to be limited to any particular embodiment, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure.

Also, terms including ordinal numbers such as first, second, etc. may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Furthermore, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting on the present disclosure. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, in the embodiments of the present disclosure, all terms used herein, including technical or scientific terms, unless otherwise defined separately, are intended to be within the scope of the present invention as generally understood by one of ordinary skill in the art to which this disclosure belongs. Have the same meaning. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the related art and, unless explicitly defined in the embodiments of the present disclosure, are intended to mean ideal or overly formal .

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of well-known functions and constructions that may obscure the gist of the present disclosure will be omitted. In the following description, only parts necessary for understanding the operation according to various embodiments of the present disclosure will be described, and the description of other parts will be omitted so as not to obscure the gist of the present disclosure.

The apparatus and method proposed in the present disclosure are applicable to a long-term evolution (LTE) mobile communication system, a long-term evolution-advanced (LTE-A) (HSDPA) mobile communication system, a high speed uplink packet access (HSUPA) mobile communication system, and a third generation project partnership 2 (3GPP2) A High Rate Packet Data (HRPD) mobile communication system, a Wideband Code Division Multiple Access (WCDMA) mobile communication system of 3GPP2, a Code Division Multiple Access (3GPP2) CDMA) mobile communication system, an Institute of Electrical and Electronics Engineers (IEEE) 802.16m communication system, an Evolved Packet System: EPS), a Mobile Internet Protocol (Mobile IP) system, and the like.

In the following description of the present disclosure, a method for transmitting and receiving data on the basis of the MMT standard specification will be described, but this is for convenience of description, and the present disclosure is not intended to be limited to the MMT standard specification.

Hereinafter, the contents related to MMT will be described with reference to FIG. 1 to FIG. 3 in order to facilitate understanding of the present disclosure.

1 is a diagram illustrating an MMT data model according to the present disclosure;

The MMT defines an MMT flow called a package 100 as a set of encoded media data and metadata related thereto.

Package 100 includes at least one MMT asset 110,120,130, at least one or "Transport Characteristic" or Asset Delivery Characteristics (ADC) 115,125 information, at least one presentation The MMT asset refers to multimedia data that can be used to generate multimedia presentations such as video, audio, text, files, widgets, and the like.

Each MMT asset 110, 120, 130 may be divided into at least one MPU (Media Processing Unit). 1, MMT asset 1 110 is shown as being divided into a plurality of MPUs 111, 112, ..., 113. The MPU is a unit in which the MMT stream is independently processed, that is, transmitted or decoded. On the other hand, one MPU can be divided into a plurality of pieces, and the divided pieces are called "MPU Fragment Unit (MFU) ".

The MMT transmitting entity divides and processes the media data in units of MPU, and the MMT receiving entity receives media data in units of MPU and performs processing for reproduction.

Transmission characteristic information or ADCs 115 and 125 contain information that can provide the transmission characteristics of the MMT asset for each MMT asset. That is, the ADC 115 indicates the transmission characteristics of the asset 1 (110), and the ADC 125 indicates the transmission characteristics of the assets 2 (120) and 3 (130).

Presentation information (PI) 140 includes information describing a temporal and spatial relationship between a plurality of assets 110, 120, and 130.

FIG. 2 is a schematic view illustrating an MMT transmitting entity 210 and an MMT receiving entity 220 transmitting and receiving an MMT package according to the present disclosure.

The MMT sending entity 210 (hereinafter abbreviated as the transmitting entity 210) refers to the MMT receiving entity 220 (hereinafter abbreviated as the receiving entity 220) as the MMT packet flows. (220). Meanwhile, the transmitting entity 210 may be any entity that transmits MMT media data, and may be, for example, an MMT broadcasting server. The receiving entity 220 may be any entity that receives MMT media data, and may be, for example, an MMT client terminal or UE (User Equipment).

If the transmitting entity 210 is an MMT broadcast server and the receiving entity 220 is a UE, the MMT broadcast server may transmit MMT media data to the UE via a base station or a network entity performing similar functions. The network entity performing a function similar to that of the base station may be, for example, an access point (AP) of a wireless LAN system. For the sake of convenience, however, the "base station" will be used as a concept including the base station of the cellular communication system and the AP of the wireless LAN communication system. However, the base station is not shown in Fig.

The sending entity 210 may collect content from the asset providers 203 and 205 based on the presentation information (PI) of the package provided by the package provider 201. [ Where the package provider 201 and the asset providers 203, 205 may be physically co-located.

The transmitting entity 210 may transmit the package including the asset, transmission specific information, and presentation information using the MMT protocol (MMTP) (230). In addition, the transmitting entity 210 and the receiving entity 220 can transmit and receive the signaling information using MMTP (240). The signaling message is sent and received to manage the delivery and consumption of the package.

For reference, the MMT protocol will be briefly described. The MMT protocol is an application layer transmission protocol for packetizing and transmitting MMT packages, and is designed to transmit packages efficiently and reliably. The MMT protocol has improved features such as media multiplexing and network jitter calculations. These features enable efficient transmission of content composed of media data encoded in various types. The MMT protocol can operate in an upper layer of an existing network protocol, for example, UDP or IP. The MMT protocol is also designed to support a variety of applications.

3 is a diagram illustrating an ISO-based media file format in which an MPU according to the present disclosure is encapsulated.

One MPU can be encapsulated according to the International Standardization Organization (ISO) based media file format. The MPU file 300, which is an ISO based media file in which the MPU is encapsulated, includes MPU metadata 310 including information of MPU metadata, and MPU media data including at least one MFU 321, 322, ..., Lt; RTI ID = 0.0 > 320 < / RTI > Each MFU includes an MFU payload and an MFU header h.

The MPU media file 310 includes a fytp box 311, a sidx box 312, an mmpu box 313, a moov box 314, and a moof box 317. The fytp box 311 includes type information of media data, and the sidx box 312 contains index information of fragments constituting the MPU.

The mmpu box 313 contains an identifier of the asset to which the current MPU belongs and other information about the current MPU.

The moov box 314 includes all codec configuration information for decoding and presentation of media data. Specifically, the moov box 314 includes at least one media track 316 and may also include an MMT hint track 317 for MFUs.

The MMT hint track 317 contains information necessary to convert the media file 300 containing the MPU into a packetized media stream using a transmission protocol such as the MMT protocol. That is, the MMT hint track 317 includes information necessary for generating a plurality of MFUs constituting one MPU.

The following is a description of key concepts according to embodiments of the present disclosure.

The present disclosure proposes a method for providing compound contents through different networks when providing a plurality of contents. In particular, the present invention provides a method for providing main contents through a broadcast network and providing additional contents through a broadband network based on TCP (Transmission Control Protocol). In this disclosure, a service in which composite content is provided to clients over different networks will be referred to as "composite network content service ".

For example, if a broadcast server provides a baseball broadcast to a client, the broadcast server will broadcast both the video content of the baseball game and the audio content of the baseball commentary. However, supplementary contents related to baseball games may be provided in addition to video and audio contents that the broadcasting server basically provides.

The additional content may be, for example, data information such as a detailed record for a baseball player. As another example, the additional content may be commentary content provided through a separate Internet personal broadcasting program other than the broadcasting server. An example is when a famous baseball player is commenting on a baseball game through internet personal broadcasting after retirement. This additional content can be text content as well as multimedia content. As another example, if a commentary on a baseball game is provided in the languages of various countries, commentary contents provided in additional languages other than the commentary contents provided in the basic language may become supplementary contents.

If all of these additional contents are provided to the client through the broadcast server, the load on the broadcast server becomes very large. Therefore, the additional contents can be served through the general broadband communication network instead of the broadcasting network, thereby reducing the load on the broadcasting server. It will also be easier for personal content developers to develop and provide various additional content related to the main content to the client.

In this disclosure, to provide such a composite network content service, a broadcast server broadcasts information informing a plurality of clients that a composite network content service is provided. This information will be referred to as "composite network content service indication information ".

In the first embodiment of the present disclosure, the composite network content service indication information is HTTP (" TCP connection establishment information ") that can provide information necessary for setting up a TCP connection of an additional content server providing additional content (Uniform Resource Locator) information, which is location information necessary for accessing the HyperText Transfer Protocol (HTTP) server. The client can know the fact that the composite network contents service is provided through receiving the URL information and the URL information of the HTTP server that provides the information of the complex network contents. Here, the TCP connection setting information includes the IP address of the server providing additional content and the shared port information. In the first embodiment, the client receiving the URL information requests the HTTP server for the TCP connection setup information for establishing the TCP connection with the additional content server providing additional content, acquires the TCP information from the HTTP server, It is possible to access the additional content server providing the additional content and obtain the additional content based on the TCP.

In the second embodiment of the present disclosure, the composite network content service indication information includes TCP connection setting information of an additional content server that provides additional content. The client can access the additional content server providing the additional content using the received TCP connection setting information to obtain the additional content based on the TCP. The client can know the fact that the composite network contents service is provided through receiving the TCP connection setting information and the TCP connection setting information of the additional contents server. The TCP connection setup information includes an IP address and shared port information.

However, in the first embodiment and the second embodiment, the composite network contents service indication information may include flag information . In this case, the flag information may have a specific value or the flag information itself may indicate that the service is a hybrid network content service.

In the present disclosure, the broadcast server can provide "content relationship information" indicating the relationship between the main content and the additional content through the metadata of the main content. When transmitting / receiving a message according to the MMT standard in the present disclosure, the content relation information may be included in presentation information (PI) defined in the MMT standard.

Here, the content relationship information may include type information such as whether the additional content is text or audio data. In addition, the content relationship information may include information on a time relationship, a spatial relationship, and a semantic relationship between the main data and the additional content. The time relation information means, for example, whether or not additional content is reproduced simultaneously with the main content or reproduction time information. The spatial relationship information means positional information or the like to be arranged when the additional content is placed in the main content. The semantic relation information is, for example, information indicating whether the supplemental content is semantically related to the main content, such as whether the supplemental content is the advertisement content related to the main content or the urgent information irrelevant to the main content.

In addition, if the content-related information is expressed in a language other than the main content, the content-related information may include a language relationship between the content. In addition, the content relationship information may include synchronization information for synchronization between the main data and the additional content. However, the synchronization information may be included in one configuration of the time relation information.

In the present disclosure, a broadcast server or an additional content server proposes various methods of packetizing and transmitting an MPU (Internet Protocol) defined by the MMT standard. In particular, in the current MMT standard, The present invention proposes a method of IP packetizing the MPU via TCP.

The method of IP packetization of the MPU in the present disclosure is as follows.

In the first scheme, MMT packetization is performed through MMT preprocessing through the MMT payload format, and then IP packetization is performed through TCP. The second method is to preprocess the MPU through the MMT payload format and then to IP packetize through TCP without MMT packetization. The third method is to preprocess the MPU through MMT payload format and IP packetization through TCP without going through MMT packetization.

In the case of the first and second methods, the IP packet through the TCP is subjected to a preprocessing process through the MMT payload format. Wherein the present disclosure may include two pieces of information in the MMT payload header in the MMT payload format. The first information is aggregation flag information, which is information indicating that one packet includes a plurality of information of the same or different types, and the second information is information of all information (or messages) included in one packet And message length (MSG_length) information indicating the size.

In the present disclosure, in order to generate and transmit TCP-based IP packets using MPU data, the size of a data segment of a TCP packet is set to be equal to a transmission unit of MPU data. In the present disclosure, the sequence of at least one TCP data segment necessary for transmitting one MPU can be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

The above-mentioned contents will be described by way of example as follows.

Assume that the total data size of one MPU is 1000 bytes, and the size of the MPU transmission unit is 200 bytes. In this case, the size of the TCP data segment is set to 200 bytes, which is equal to the size of the MPU transmission unit. Therefore, five TCP data segments are required for 1000 byte MPU transmission. The order of five TCP data segments is the serial number of each of the five TCP packets in the header of each of the five TCP packets generated from the five TCP segments. In addition, each TCP header includes size information (200 bytes in the above example) of each TCP segment. In addition, each TCP header may include total MPU size information (1000 bytes in the example) and transmission time information of each TCP packet.

So far, we have explained how to generate MPU as TCP based IP packet. In this disclosure, the MMT signaling information can be generated as a TCP-based IP packet in the same manner as the MPU.

That is, in order to generate the TCP-based IP packet form using the MMT signaling information in this disclosure, there are three methods similar to the method of generating the MPU as the TCP-based IP packet. The first is MMT packetization of MMT signaling information through MMT preprocessing through MMT payload format, and then IP packetization through TCP. The second method is to preprocess the MMT signaling information through the MMT payload format and then to IP packetize through TCP without MMT packetization. The third method is to preprocess MMT signaling information through MMT payload format and IP packetization through TCP immediately without going through MMT packetization.

Also, at least one MMT signaling information may be included in one IP packet (or TCP packet). Accordingly, MMT signaling information (hereinafter abbreviated as "MMT signaling information transmission set") included in one TCP packet can be processed in a manner similar to the MPU transmission unit described above.

That is, when at least one MMT signaling information is transmitted as a TCP-based IP packet, the size of the data segment of the TCP packet is set equal to the size of the MMT signaling information transmission set. Also, in this disclosure, the sequence of at least one TCP data segment needed to transmit the entire MMT signaling information may be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

size

Embodiments according to the present disclosure will be described in detail below based on the basic concept of the present disclosure described above.

4 is a diagram illustrating a protocol stack for MPU transmission in accordance with the present disclosure;

The protocol stack according to the present disclosure includes an application layer, a transmission layer, and a physical layer. For convenience of description, contents related to the embodiments of the present disclosure will be described.

In the application layer, an MPU 107 of an ISO-based multimedia file format (ISO (International Organization for Standardization) base media file format: ISOBMFF) is generated.

In this disclosure, the transmission layer 403 is based on the IP 409, and there are UDP 411 and TCP 413 above the IP 409. The MMT protocol 415 and HTTP 417 are located above the UDP 411 and the TCP 413 and the MMT payload format 419 exists above the MMT protocol 415. In addition, the MMT protocol 415 may include an Application Layer-Forward Error Correction (AL-FEC) 421. As described above, the MMT protocol 415 packetizes the MMT package, The MMT payload 419 is a payload for packetizing and transmitting media data such as an MPU using the MMT protocol.

It is possible to transmit and receive data through the broadcast 427 or the broadband network 429 in the physical layer.

In FIG. 4, the data service method is broadly divided into a broadcast 431, a broadband push 433, and a broadband pull 435. The broadcast 431 is broadcasted by the MPU 407 via the UDP (User Datagram Protocol) 411 and the IP 409 in such a manner that the broadcast server broadcasts multimedia contents or signaling data.

Broadband push 433 is a method by which a transmitting entity sends a stream to a client over a broadband network, e.g., an Internet network, until the end of the stream, when the client requests stream or data from the original transmitting entity. On the contrary, the broadband pull method 435 is a method in which a client periodically requests streaming data or data to a transmitting entity, and a transmitting entity transmits a stream or data to a client over a broadband network through a broadband network . The broadband full method 435 is a method in which arbitrary contents are transmitted and received through the Internet.

One embodiment of the present disclosure describes a method for transmitting an MPU based on TCP in a broadband push 433 scheme. However, the method of transmitting the MPU based on the TCP is not limited to being applied only to the broadband push 433 method. In particular, a method of providing IP packetization based on TCP based on "Composite network content service" and providing it to a client will be described. The existing MMT standard specifies only IP packetization based on UDP. Accordingly, the present disclosure proposes an example in which content generated according to the MMT standard is provided by IP-based packetization based on TCP.

Since TCP has a retransmission procedure for non-received packets according to the ARQ scheme, TCP has an advantage in that there is no packet loss during packet transmission / reception compared with UDP that does not use the ARQ scheme. However, TCP has a slower data transmission / reception rate than UDP. According to the characteristic of TCP, when signaling information is transmitted even when broadcasting contents are served, it is preferable to transmit signaling information to an IP packet based on TCP rather than UDP. However, the current MMT standard does not define IP packets based on TCP. Therefore, the present disclosure suggests a method for constructing MMT data, that is, an MPU based on TCP based IP packets.

In the present disclosure, a method of generating an MPU as an IP packet proposes three methods.

Referring to FIG. 4, the first scheme is an MMT packetization process through an MMT preprocessing process using an MMT payload format, followed by IP packetization through TCP (Step 441). The second method is to preprocess the MPU through the MMT payload format and then to IP packetize through TCP without performing MMT packetization (443). The third method is to preprocess the MPU through the MMT payload format and IP packetization through TCP without going through the MMT packetization (445).

In the present disclosure, in order to generate and transmit TCP-based IP packets using MPU data, the size of a data segment of a TCP packet is set to be equal to a transmission unit of MPU data. Also, in the present disclosure, the order of at least one TCP data segment necessary for transmitting one MPU can be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

The above-mentioned contents will be described by way of example as follows.

Assume that the total data size of one MPU is 1000 bytes, and the size of the MPU transmission unit is 200 bytes. In this case, the size of the TCP data segment is set to 200 bytes, which is equal to the size of the MPU transmission unit. Therefore, five TCP data segments are required for 1000 byte MPU transmission. The order of five TCP data segments is the serial number of each of the five TCP packets in the header of each of the five TCP packets generated from the five TCP segments. In addition, each TCP header includes size information (200 bytes in the above example) of each TCP segment. In addition, each TCP header may include total MPU size information (1000 bytes in the example) and transmission time information of each TCP packet.

Meanwhile, in the present disclosure, when generating and transmitting a TCP-based IP packet using the MMT signaling information, there are three methods as in the case of generating an MPU as a TCP-based IP packet. Also, at least one MMT signaling information may be included in one IP packet (or TCP packet). Therefore, the MMT signaling information transmission set included in one TCP packet can be processed in a manner similar to the MPU transmission unit described above.

That is, when at least one MMT signaling information is transmitted as a TCP-based IP packet, the size of the data segment of the TCP packet is set equal to the size of the MMT signaling information transmission set. Also, in this disclosure, the sequence of at least one TCP data segment needed to transmit the entire MMT signaling information may be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

FIG. 5 is a diagram illustrating a method of transmitting and receiving a composite content based on TCP according to the first embodiment of the present disclosure.

Although the processes of FIG. 5 are described separately for each step for convenience, they are not necessarily operated in order unless the operations are inconsistent with each other or collide with each other. Also, the operations of each step may be omitted in some cases.

In step 511, the broadcasting server 501 transmits the signaling information to the client 503. The signaling information includes composite network content service indication information including URL information. The URL information is URL information of the HTTP server 505 capable of providing TCP connection setting information. The client 503 can know the fact that the composite network contents service is provided through the reception of the URL information and the URL information of the HTTP server 505. [

In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the URL information and know the URL information of the HTTP.

On the other hand, although not shown in step 511, the broadcasting server 501 can transmit the main content to the client 503. [ The metadata of the main content may include content relationship information indicating a relationship between the main content and the additional content. However, the main content is not necessarily transmitted together with the signaling information, but may be transmitted after the signaling information is transmitted, or may be transmitted after the client 503 receives the additional content.

In step 513, the client 503 transmits an HTTP request message to the HTTP server 505 according to the received URL information. In step 515, the HTTP server 505 transmits an HTTP response message including the TCP connection setting information of the additional content server 507 to the client 503. The TCP connection setting information includes the IP address of the additional content server 507 and the shared port information. In step 517, the client 503 requests the TCP session using the IP address of the additional content server 507 and the shared port information. In step 519, the additional content server 507 transmits the additional content to the client 503.

Meanwhile, in FIG. 5, the main content or the additional content may be generated by the MPU of the MMT and then IP packetized based on the TCP. Specifically, a method of IP packetization based on TCP is possible as described above. In the first scheme, MMT packetization is performed through MMT preprocessing through the MMT payload format, and then IP packetization is performed through TCP. The second method is to preprocess the MPU through the MMT payload format and then to IP packetize through TCP without MMT packetization. The third method is to preprocess the MPU through MMT payload format and IP packetization through TCP without going through MMT packetization.

In the present disclosure, in order to generate and transmit TCP-based IP packets using MPU data, the size of a data segment of a TCP packet is set to be equal to a transmission unit of MPU data. Also, in the present disclosure, the order of at least one TCP data segment necessary for transmitting one MPU can be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

FIG. 6 is a view for explaining message transmission / reception for each entity for transmitting / receiving composite contents based on TCP according to the first embodiment of the present disclosure.

Although the processes of FIG. 6 are described separately for each step, they are not necessarily executed in order unless the operations are inconsistent with each other or collide with each other. Also, the operations of each step may be omitted in some cases.

In step 601, the broadcasting server 501 transmits the signaling information to the client 503. The signaling information includes composite network content service indication information including URL information. The URL information is URL information of the HTTP server 505 capable of providing TCP connection setting information. The client 503 can know the fact that the composite network contents service is provided through the reception of the URL information and the URL information of the HTTP server 505. [ In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the URL information and know the URL information of the HTTP.

In step 603, the client 503 transmits an HTTP request message to the HTTP server 505 according to the received URL information. In step 605, the HTTP server 505 transmits to the client 503 an HTTP response message including the TCP connection setting information of the additional content server 507 providing additional content. The TCP connection setting information includes the IP address of the additional content server 507 and the shared port information.

In step 607, the client 503 requests the TCP session using the IP address of the additional content server 507 and the shared port information. In step 609, the additional content server 507 transmits the TCP service port information to the client 503. In step 611, the client 503 requests the TCP session again with the received TCP service port. In step 613, the additional content server 507 transmits the additional content to the client 503. In step 615, the client 503 transmits a TCP session end message to the additional content server 507. [

As described above, in FIG. 6, the main content or the additional content is generated by the MPU of the MMT, and can be generated by IP packetization based on the TCP. Specifically, a method of IP packetization based on TCP is possible as described above. Since this has been described in detail above, a detailed description thereof will be omitted.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

7 is a diagram illustrating a method of transmitting and receiving a composite content based on TCP according to a second embodiment of the present disclosure.

Although the processes of FIG. 7 have been described for the sake of convenience, they are not necessarily operated in order unless the operations are inconsistent or conflicting with each other. Also, the operations of each step may be omitted in some cases.

The second embodiment differs from the first embodiment in that the broadcast server 501 directly transmits the TCP connection setting information to the client 503 without the HTTP server 505. [

In step 701, the broadcasting server 501 transmits the signaling information to the client 503. The signaling information includes composite network content service indication information including TCP connection setting information of the additional content server 507. [ The TCP connection setting information is TCP connection setting information of the additional content server 507 that provides additional content. The client 503 can know the fact that the composite network contents service is provided through the reception of the TCP connection setting information and the TCP connection setting information of the additional contents server 507. [ The TCP connection setup information includes an IP address and shared port information.

In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the TCP connection setting information and know the TCP connection setting information of the additional content server 507.

On the other hand, although not shown in step 701, the broadcast server 501 can transmit the main content to the client 503. The metadata of the main content may include content relationship information indicating a relationship between the main content and the additional content. However, the main content is not necessarily transmitted together with the signaling information, but may be transmitted after the signaling information is transmitted, or may be transmitted after the client 503 receives the additional content.

In step 703, the client 503 requests a TCP session with the additional content server 507 using the received TCP connection setting information, that is, the IP address of the additional content server 507 and the shared port information. In step 705, the additional content server 507 transmits the additional content to the client 503.

Meanwhile, in FIG. 7, the main content or the additional content is generated by the MPU of the MMT, and can be generated by IP packetization based on the TCP. Specifically, a method of IP packetization based on TCP is possible as described above. Since this has been described in detail above, a detailed description thereof will be omitted.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

FIG. 8 is a view for explaining message transmission / reception for each entity for transmitting / receiving a composite content based on TCP according to a second embodiment of the present disclosure.

Although the processes of FIG. 8 are described separately for each step for convenience, they are not necessarily operated in order unless the operations are inconsistent with each other or collide with each other. Also, the operations of each step may be omitted in some cases.

In step 801, the broadcasting server 501 transmits the signaling information to the client 503. The signaling information includes composite network content service indication information including TCP connection setting information of the additional content server 507. [ The TCP connection setting information is TCP connection setting information of the additional content server 507 that provides additional content. The client 503 can know the fact that the composite network contents service is provided through the reception of the TCP connection setting information and the TCP connection setting information of the additional contents server 507. [ The TCP connection setup information includes an IP address and shared port information.

In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the TCP connection setting information and know the TCP connection setting information of the additional content server 507.

On the other hand, although not shown in step 801, the broadcasting server 501 can transmit the main content to the client 503. The metadata of the main content may include content relationship information indicating a relationship between the main content and the additional content. However, the main content is not necessarily transmitted together with the signaling information, but may be transmitted after the signaling information is transmitted, or may be transmitted after the client 503 receives the additional content.

In step 803, the client 503 requests the additional content server 507 for a TCP session using the received TCP connection setting information, that is, the IP address of the additional content server 507 and the shared port information. In step 805, the additional content server 507 transmits the TCP service port information to the client 503. In step 807, the client 503 requests the TCP session again with the received TCP service port. In step 809, the additional content server 507 transmits the additional content to the client 503. In step 811, the client 503 transmits a TCP session end message to the additional content server 507.

Meanwhile, in FIG. 8, the main content or the additional content may be generated by the MPU of the MMT and then IP packetized based on the TCP. Specifically, a method of IP packetization based on TCP is possible as described above. Since this has been described in detail above, a detailed description thereof will be omitted.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

9 is a diagram for explaining message transmission / reception between the client 503 and the additional content server 507 according to the present disclosure.

Although the processes of FIG. 9 are described separately for each step, they are not necessarily operated in order unless the operations are inconsistent or conflicting with each other. Also, the operations of each step may be omitted in some cases.

In step 901, the client 503 requests the additional content server 507 to register. In step 902, the additional content server 507 responds to the registration request to the client 503. In step 903, the client 503 transmits the heartbeat signal to the additional content server 507 that periodically transmits the heartbeat signal. The heartbeat signal is a signal for informing that the client 503 exists to keep the current session. As long as this heartbeat signal is received, the additional content server 507 transmits the packet of the additional content. Step 905 shows that the client 503 sends a termination message and requests a TCP deregistration.

10 is a diagram illustrating a method of packetizing an MPU based on an ISO-based multimedia file format according to the present disclosure.

As described in FIG. 3, in the ISO-based multimedia file format, the MPU includes boxes 311, 312, 313, 314, and 317 including MPU metadata and an mdat box 320 including MFUs. Referring to FIG. 10, FIG. 10 illustrates the configuration of the ISO-based MPU of FIG. However, not all the boxes constituting the metadata are shown but only the main metadata boxes, i.e., the mmpu box and the moof box are shown.

In the present disclosure, the mmpu boxes 1011 and 1014 and the moof boxes 1012 and 1015 may be generated as one TCP packet or one IP packet, respectively. This is because the data included in the mmpu boxes 1011 and 1014 and the moof boxes 1012 and 1015 are not large in size as metadata. The mfu's 1013, 1014, 1016, 1017 are typically generated as a plurality of packets. Because mfu contains multimedia contents data, the data size is relatively large.

Also, in this disclosure, the MPU is divided according to the MPU transmission unit size so that one TCP packet may contain different types of data. For example, if one MPU is 100 bytes and the MPU transmission unit size is set to 200 bytes, the MPU is divided into 200 byte units, and MPU data having a size of 200 bytes can be included in one TCP data segment . At this time, the size of the TCP data segment is set equal to the size of the MPU transmission unit. In this case, one TCP segment may include a plurality of MPU data having different or the same type.

For example, the first TCP packet may include both mmpu (1011), moof (1012), and mfu payload 1021. This is an example in which a TCP packet includes a plurality of MPU data of different types. The second TCP packet may include two mfu payloads after the mfu payload 1021. This is an example having a plurality of MPU data of the same type.

In this disclosure, "aggregation flag information" which is information indicating whether or not a plurality of pieces of information having the same or different types of the same or different types are included in one TCP packet (or IP packet) . In addition, "message length (MSG_length) information" indicating the size of the entire information (or message) included in one packet may be transmitted. In this disclosure, "aggregation flag information" or "message length (MSG_length) information" may be included in the MMT payload header in the MMT payload format.

Also, in the present disclosure, the order of at least one TCP data segment necessary for transmitting one MPU can be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

11 is a diagram illustrating a method of packetizing signaling information in accordance with one embodiment of the present disclosure.

Although the processes of FIG. 11 have been described for the sake of convenience, they are not necessarily operated in order unless the operations are inconsistent or conflicting with each other. Also, the operations of each step may be omitted in some cases.

The signaling message 1101 comprises at least one signaling information. In the present disclosure, one TCP packet (or IP packet) can be constructed using at least one signaling information. Referring to FIG. 11, it is shown that three pieces of signaling information (S1, S2, S3) are composed of one packet.

In the present disclosure, when generating and transmitting a TCP-based IP packet using the MMT signaling information, there are three methods as in the case of generating an MPU as a TCP-based IP packet. Specifically, the first scheme is MMT packetization of MMT signaling information through MMT preprocessing through MMT payload format, and then IP packetization through TCP. The second method is to preprocess the MMT signaling information through the MMT payload format and then to IP packetize through TCP without MMT packetization. The third method is to preprocess MMT signaling information through MMT payload format and IP packetization through TCP immediately without going through MMT packetization.

Also, at least one MMT signaling information may be included in one IP packet (or TCP packet). Therefore, the MMT signaling information transmission set included in one TCP packet can be processed in a manner similar to the MPU transmission unit described above.

In the present disclosure, at least one MMT signaling information may be included in one IP packet (or TCP packet) when the MMT signaling information is used to generate and transmit a TCP-based IP packet. Accordingly, the MMT signaling information included in one TCP packet (i.e., the "MMT signaling information transmission set") can be processed in a manner similar to the MPU transmission unit described above.

That is, when the MMT signaling information is transmitted as a TCP-based IP packet, the size of the data segment of the TCP packet is set equal to the size of the MMT signaling information transmission set. Also, in this disclosure, the sequence of at least one TCP data segment needed to transmit the entire MMT signaling information may be set to the serial number of each TCP packet. Accordingly, in the present disclosure, size information of TCP data segments is included in the TCP header. In addition, the data size information of the MPU and the transmission time information of the TCP packet generated from the MPU can be included in the TCP header.

12 is a diagram for explaining the operation of the client 503 according to the first embodiment of the present disclosure.

Although the processes of FIG. 12 are described separately for each step, they are not necessarily executed in order unless the operations are inconsistent or conflicted with each other. Also, the operations of each step may be omitted in some cases.

In step 1201, the client 503 receives the composite network contents service instruction information including the URL information from the broadcast server 501. The URL information is URL information of the HTTP server 505 capable of providing TCP connection setting information. The client 503 can know the fact that the composite network contents service is provided through the reception of the URL information and the URL information of the HTTP server 505. [

In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the URL information and know the URL information of the HTTP.

Meanwhile, although not shown in step 1201, the broadcasting server 501 can transmit the main content to the client 503. The metadata of the main content may include content relationship information indicating a relationship between the main content and the additional content. However, the main content is not necessarily transmitted together with the signaling information, but may be transmitted after the signaling information is transmitted, or may be transmitted after the client 503 receives the additional content.

In step 1203, the client 503 transmits an HTTP request message to the HTTP server 505 according to the received URL information. In step 1205, the client 503 receives an HTTP response message including the TCP connection setting information of the additional content server 507 from the HTTP server 505. [ The TCP connection setting information includes the IP address of the additional content server 507 and the shared port information. In step 1207, the client 503 requests a TCP session using the IP address of the additional content server 507 and the shared port information. In step 1209, the client 503 receives the TCP service port information from the additional content server 507. In step 1211, the client 503 requests the TCP session again with the received TCP service port. In step 1213, the client 503 receives the TCP-based IP packet including the additional content from the additional content server 507. In step 1215, the client 503 transmits a session end request message to terminate the TCP session with the supplementary content server 507. [

As described above, in FIG. 12, an MPU of the main content or additional content MMT may be generated and then IP packetized on the basis of TCP. Specifically, a method of IP packetization based on TCP is possible as described above. Since this has been described in detail above, a detailed description thereof will be omitted.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

13 is a diagram for explaining the operation of the client 503 according to the second embodiment of the present disclosure.

Although the processes of FIG. 13 are described separately for each step for convenience, they are not necessarily operated in order unless the operations are inconsistent or conflicted with each other. Also, the operations of each step may be omitted in some cases.

In step 1301, the client 503 receives the composite network contents service instruction information including the TCP connection setting information of the additional content server 507 from the broadcast server 501. The TCP connection setting information is TCP connection setting information of the additional content server 507 that provides additional content. The client 503 can know the fact that the composite network contents service is provided through the reception of the TCP connection setting information and the TCP connection setting information of the additional contents server 507. [ The TCP connection setup information includes an IP address and shared port information.

In another embodiment, the composite network content service indication information may include flag information for indicating that the composite network content service is to be provided. That is, the flag information set to a specific value may indicate to the client 503 that a composite network content service is provided. In this case, the client 503 may receive the flag information to know that the composite network contents service is provided, and may receive the TCP connection setting information and know the TCP connection setting information of the additional content server 507.

On the other hand, although not shown in step 1301, the broadcasting server 501 can transmit the main content to the client 503. The metadata of the main content may include content relationship information indicating a relationship between the main content and the additional content. However, the main content is not necessarily transmitted together with the signaling information, but may be transmitted after the signaling information is transmitted, or may be transmitted after the client 503 receives the additional content.

In step 1303, the client 503 requests the additional content server 507 for a TCP session using the received TCP connection setting information, i.e., the IP address of the additional content server 507 and the shared port information. In step 1305, the client 503 receives the TCP service port information from the additional content server 507. In step 1307, the client 503 requests the TCP session again with the received TCP service port. In step 1309, the client 503 receives the additional content from the additional content server 507. [ In step 1311, the client 503 transmits a TCP session end message to the supplementary content server 507 to terminate the TCP session.

13, the main content or the additional content is generated by the MPU of the MMT, and then generated by IP packetization based on the TCP. Specifically, a method of IP packetization based on TCP is possible as described above. Since this has been described in detail above, a detailed description thereof will be omitted.

Also, the MMT signaling information can be IP packetized on the basis of TCP in a manner similar to MPU. As described above, detailed description thereof will be omitted.

14 is a diagram for explaining a configuration of a network entity apparatus according to an embodiment of the present disclosure.

The network entity may be a broadcast server 501, an HTTP server 505, or an additional content server 507.

The network entity apparatus includes a transmission / reception unit 1401, a control unit 1403, and a storage unit 1405. The configuration of the client device may be implemented using a combination of at least one of hardware, firmware, and software. As an example of the client device configuration, the transceiver 1401 may be implemented as a modem and an RF transceiver, and the controller 1403 may be an application processor (AP) Lt; RTI ID = 0.0 > processors. The storage unit 1405 may include a memory device such as a RAM (Random Access Memory).

The transmission / reception unit 1401 transmits / receives a signal to / from the client 503.

The control unit 1403 controls the overall operation according to the present disclosure.

When the network entity is the broadcast server 501, the control unit 1403 generates main content and signaling information. In particular, it generates composite network service indication information including the URL information of the HTTP server 505 according to the present disclosure or the TCP connection setting information of the additional content server 507, and transmits it to the client. In addition, the main content or signaling information is IP packetized based on TCP and transmitted to the client 503. At this time, content-related information is included in the meta data of the main content.

When the network entity is the HTTP server 505, the control unit 1403 collects the URL information of the HTTP server 505 or the TCP connection setting information of the additional content server 507, and transmits the collected information to the client 503.

If the network entity is the supplementary content server 507, the control unit 1403 connects the client 503 with the TCP session to IP-packetize the supplementary content or the signaling information based on the TCP, and provides the packet to the client 503.

The network entities can IP packetize the main content, the signaling information, and the additional content based on the TCP as described above.

The storage unit 1405 stores information necessary for the operation of the network entity. For example, URL information of the HTTP server 505 or TCP connection setting information of the additional content server 507 is stored.

15 is a diagram illustrating a configuration of a client apparatus according to an embodiment of the present disclosure;

The client device is typically a UE device.

The client apparatus includes a transmitting / receiving unit 1501, a control unit 1503, and a storage unit 1505. The configuration of the client device may be implemented using a combination of at least one of hardware, firmware, and software. As an example of the configuration of the client apparatus, the transceiving units 1501 and 1501 may be implemented by a configuration generally called a modem and an RF transceiver, processor may be implemented as a processor. The storage unit 1505 may be a memory device such as a RAM (Random Access Memory).

Transmitting / receiving unit 1501 transmits / receives signals to / from network entities. In particular, main content is received from the broadcast server 501. Also, the URL information of the HTTP server 505 or the TCP connection setting information of the additional content server 507 is received from the broadcast server 501. Also, the TCP connection setting information of the additional content server 507 is received from the HTTP server 505. In addition, additional content is received from the additional content server 507.

The control unit 1503 controls the overall operation according to the present disclosure.

Particularly, the control unit 1503 requests the HTTP server 505 for the TCP connection setting information of the additional content server 507 according to the URL information of the HTTP server 505 received from the broadcasting server 501. A TCP session is requested to the additional content server 507 using the TCP connection setting information (IP address information and shared port information) of the additional content server 507 received from the broadcasting server 501 or the HTTP server 505 do. In addition, it receives the TCP service port information from the additional content server 507, and requests the TCP session again with the TCP service port information according to the received TCP service port information, thereby receiving the additional content from the additional content server 507. In addition, the control unit 1503 generates composite network service indication information including the TCP connection setting information of the additional content server 507 and transmits it to the client. In addition, the main content is IP packetized based on TCP and transmitted to the client 503. At this time, content-related information is included in the meta data of the main content.

The storage unit 1505 stores information necessary for the operation of the client apparatus. For example, URL information of the HTTP server 505 or TCP connection setting information of the additional content server 507 is stored.

The embodiments of the present disclosure have been described in detail above. According to the exemplary embodiments of the present disclosure, the reference values of different received signal qualities are applied to different received signals to forward the corresponding signals. In particular, since the transmission resources and the transmission power of the terminal can be efficiently used have.

Certain aspects of embodiments of the present disclosure as thus far described may be implemented as computer readable code in a computer readable recording medium. The computer readable recording medium is any data storage device capable of storing data that can be read by a computer system. Examples of the computer-readable recording medium include a read-only memory (ROM), a random-access memory (RAM), CD-ROMs, magnetic tapes , Floppy disks, optical data storage devices, and carrier waves (such as data transmission over the Internet). The computer readable recording medium may also be distributed over networked computer systems, and thus the computer readable code is stored and executed in a distributed manner. In addition, functional programs, code, and code segments for accomplishing the present disclosure may be readily interpreted by those skilled in the art to which this disclosure applies.

It will also be appreciated that the apparatus and method according to one embodiment of the present disclosure may be implemented in hardware, software, or a combination of hardware and software. Such arbitrary software may be stored in a memory such as, for example, a volatile or non-volatile storage device such as a storage device such as ROM or the like, or a memory such as a RAM, a memory chip, a device or an integrated circuit, , Or a storage medium readable by a machine (e.g., a computer), such as a CD, a DVD, a magnetic disk, or a magnetic tape, as well as being optically or magnetically recordable. The method according to one embodiment of the present disclosure may be implemented by a computer or a mobile terminal including a controller and a memory and the memory is adapted to store programs or programs containing instructions embodying the embodiments of the present disclosure It is an example of a machine-readable storage medium.

Accordingly, this disclosure includes a program including code for implementing the apparatus or method described in any claim herein, and a storage medium readable by a machine (such as a computer) for storing such a program. In addition, such a program may be electronically transported through any medium, such as a communication signal carried over a wired or wireless connection, and this disclosure suitably includes equivalents thereof

Further, an apparatus according to an embodiment of the present disclosure may receive and store the program from a program providing apparatus connected by wire or wireless. The program providing apparatus comprising: a memory for storing a program including instructions for causing the program processing apparatus to perform a predetermined content protection method, information necessary for a content protection method, and the like; And a control unit for transmitting the request to the graphic processing apparatus or automatically transmitting the program to the transmission / reception apparatus.

Claims (38)

A method for receiving a composite content in a communication system,
Receiving signaling information including a TCP connection setting information of an additional content server from a network entity;
Connecting a TCP session with the supplementary content server using the TCP connection setup information;
And receiving additional content through the connected TCP session. The method of claim 1, wherein the step of receiving the signaling information comprises:
Receiving URL information of an HTTP server from a broadcast server;
Requesting the HTTP server for TCP connection setting information of the additional content server using the received URL information;
And receiving TCP connection setting information of the additional content server from the HTTP server. The method of claim 1, wherein the step of receiving the signaling information comprises:
And receiving TCP connection setting information of the additional content server from the broadcast server. The method as claimed in claim 1,
And an IP address of the additional content server and shared port information. The method as claimed in claim 1, wherein the step of connecting the TCP session comprises:
Requesting the TCP session to a shared port of the additional content server;
Receiving service port information from the additional content server;
And requesting the TCP session with service port information of the additional content server. The method according to claim 1,
And receiving main content from a broadcast server. 7. The method of claim 6, wherein the main content, the signaling information,
An MMT preprocessing process, an MMT packetization process, and an IP packetization process through TCP,
The MMT preprocessing process, and the IP packetization process through the TCP,
Wherein the MMT packet is generated through a third procedure including the IP packetization process through the TCP without the MMT preprocessing process and the MMT packetization process. 8. The method of claim 7, wherein the main content, the signaling information,
A flag information including whether or not a plurality of signaling messages are included in one IP packet generated from the signaling information when generated through the first procedure or the second procedure, And size information of the entire information. The method as claimed in claim 7,
Wherein the MMT payload header is included in the MMT payload header in the MMT preprocessing step. 7. The information processing apparatus according to claim 6,
And a content relationship information indicating a relationship between the main content and the additional content. 7. The information processing apparatus according to claim 6,
Wherein the main content includes at least one of a time relationship, a spatial relationship, a semantic relationship, and synchronization information between the main content and the supplementary content, and is included in the meta data of the main content. A method of providing a composite content by a broadcast server in a communication system,
Generating main content,
Transmitting the generated main content to a client,
Comprising: generating signaling information including composite network content service indication information;
And transmitting the generated composite network content service indication information to a client. 13. The method of claim 12, wherein the composite network content service indication information comprises:
The URL information of the HTTP server or the TCP connection setting information of the additional content server. 14. The method of claim 13,
And an IP address of the additional content server and shared port information. 13. The method of claim 12, wherein the main content or the signaling information comprises:
An MMT preprocessing process, an MMT packetization process, and an IP packetization process through TCP,
The MMT preprocessing process, and the IP packetization process through the TCP,
Wherein the MMT is generated through a third procedure including the IP packetization process through the TCP without the MMT preprocessing process and the MMT packetization process. 16. The method of claim 15, wherein the main content, the signaling information,
A flag information including whether or not a plurality of signaling messages are included in one IP packet generated from the signaling information when generated through the first procedure or the second procedure, And message size information of the entire information. 17. The method as claimed in claim 16, wherein the flag information and the message size information include:
And the MMT payload header is included in the MMT payload header in the MMT preprocessing step. 13. The method according to claim 12,
And a content relationship information indicating a relationship between the main content and the additional content. 19. The information processing apparatus according to claim 18,
Wherein the main content includes at least one of a time relationship, a spatial relationship, a semantic relationship, and synchronization information between the main content and the supplementary content, and is included in the meta data of the main content. A client apparatus for receiving a composite content in a communication system,
A transmission / reception unit for receiving, from the network entity, signaling information including TCP connection setting information of an additional content server;
And a controller for connecting the additional content server with the TCP session using the TCP connection setting information and receiving the additional content through the transceiver through the connected TCP session. 21. The apparatus according to claim 20, wherein the transmitting /
Receives the URL information of the HTTP server from the broadcast server, requests the HTTP server for the TCP connection setting information of the additional content server using the received URL information, and transmits the TCP connection setting information of the additional content server The client device receiving the composite content. 21. The apparatus according to claim 20, wherein the transmitting /
And receives the composite content for receiving the TCP connection setting information of the additional content server from the broadcast server. 21. The method of claim 20,
Wherein the client device receives the composite content including the IP address of the additional content server and the shared port information. 21. The apparatus of claim 20,
Requesting the TCP session to the shared port of the additional content server, receiving the service port information from the additional content server, and receiving the composite content requesting the TCP session with the service port information of the additional content server. 21. The apparatus according to claim 20, wherein the transmitting /
Wherein the client device is further configured to receive main content from a broadcast server. 26. The method of claim 25, wherein the main content, the signaling information,
An MMT preprocessing process, an MMT packetization process, and an IP packetization process through TCP,
The MMT preprocessing process, and the IP packetization process through the TCP,
Wherein the MMT packet is generated through a third procedure including the IP packetization process through the TCP without the MMT preprocessing process and the MMT packetization process. 27. The method of claim 26, wherein the main content, the signaling information,
A flag information including whether or not a plurality of signaling messages are included in one IP packet generated from the signaling information when generated through the first procedure or the second procedure, And the message size information of the entire information. 28. The information processing apparatus according to claim 27, wherein the flag information and the message size information include:
Wherein the MMT payload header is included in the MMT payload header in the MMT preprocessing step. The method of claim 25,
And a content-related information indicating a relationship between the main content and the additional content. 26. The content distribution system according to claim 25,
Wherein the main content includes at least one of a time relationship, a spatial relationship, a semantic relationship, and synchronization information between the main content and the supplementary content, and is included in the meta data of the main content. A broadcast server for providing a composite content in a communication system,
A control unit for generating main content and generating signaling information including the composite network content service indication information,
And a transmitting / receiving unit transmitting the generated main content to a client and transmitting the generated composite network content service indication information to a client. 32. The method of claim 31, wherein the composite network content service indication information comprises:
The URL information of the HTTP server or the TCP connection setting information of the additional content server. The method of claim 32, wherein the TCP connection setup information comprises:
And providing the composite content including the IP address of the additional content server and the shared port information. 32. The method of claim 31, wherein the main content or the signaling information comprises:
An MMT preprocessing process, an MMT packetization process, and an IP packetization process through TCP,
The MMT preprocessing process, and the IP packetization process through the TCP,
Wherein the MMT is generated through a third procedure including the IP packetization process through the TCP without the MMT preprocessing process and the MMT packetization process. 35. The method of claim 34, wherein the main content, the signaling information,
A flag information including whether or not a plurality of signaling messages are included in one IP packet generated from the signaling information when generated through the first procedure or the second procedure, And the message size information of the entire information. The information processing apparatus according to claim 35, wherein the flag information and the message size information include:
And the MMT payload header is included in the MMT payload header in the MMT preprocessing step. 32. The method of claim 31,
Providing a composite content including content relationship information indicating a relationship between the main content and the additional content. 38. The information processing apparatus according to claim 37,
Wherein the main content includes at least one of a time relationship, a spatial relationship, a semantic relationship, and synchronization information between the main content and the supplementary content, and is included in the meta data of the main content.

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