KR20150089409A - Method and apparatus for processing broadcasting data - Google Patents

Abstract

Various embodiments of the present invention relate to a method and a device for processing broadcasting data. According to an embodiment, an electronic device comprises: a broadcast receiving module for receiving broadcasting data; and a broadcast service module functionally coupled with the broadcast receiving module. The broadcast service module can be set so that at least a part of playing related information of the broadcasting data is to be updated based on broadcasting data storing time after receiving the broadcast data. Other various embodiments are also possible.

Description

TECHNICAL FIELD [0001] The present invention relates to a broadcast data processing method,

Various embodiments of the present invention are directed to a method and apparatus for processing broadcast data.

Service technologies for delivering broadcast data, such as multimedia contents, in a broadcast or multicast form through a mobile communication network have been introduced and already being realized. For example, a mobile communication network such as a 3GPP (Third Generation Partnership Project) network or an LTE network provides a concept of a broadcast type multicast service (eMBMS: Evolved Multimedia Broadcast / Multicast Service). The eMBMS service transmits a multimedia content packet obtained from a content provider (CP) or a multicast broadcast source server, which is a data source, to a plurality of electronic devices through a mobile communication network by broadcasting or multicasting . That is, the system transmits the corresponding content only once, and allows a plurality of users to simultaneously receive the corresponding content.

 Recently, as a transmission technology utilizing the advantages of the HTTP protocol and the streaming method, a moving picture expert group (MPEG), which is an international standardization organization, has developed an adaptive HTTP-based adaptive streaming protocol called DASH (Dynamic Adaptive Streaming over HTTP) Streaming technology is being introduced into eMBMS service.

As DASH technology, which is an adaptive streaming technology based on HTTP, is applied to eMBMS service, users are able to easily consume media contents anytime and anywhere by using various electronic devices that they own in a flexible internet environment .

According to the related art, when broadcast data provided on the basis of eMBMS is received in an electronic device through a network, a network delay may occur due to various causes. If the broadcast data provided on the eMBMS basis is normally received by the electronic device without network delay, the electronic device can reproduce the broadcast data at a predetermined broadcast time. However, if a network delay occurs when eMBMS-based broadcast data is received, the electronic device may not be able to reproduce broadcast data according to the network delay. Accordingly, the eMBMS system provides a predetermined network delay time to the electronic device so that the electronic device can reproduce the broadcast data even when the network delay occurs in receiving the eMBMS-based broadcast data in the electronic device.

According to various embodiments of the present invention, by adjusting (e.g., updating) the actual network delay time using a predetermined (e.g., predetermined) network delay time according to the actual broadcast data reception time, Apparatus, and method.

According to various embodiments of the present invention, there is provided an electronic device comprising: a broadcast receiving module for receiving broadcast data; And a broadcast service module functionally coupled to the broadcast receiving module, wherein the broadcast service module is configured to update at least a part of the play related information of the broadcast data after receiving the broadcast data, based on a broadcast data save time .

According to various embodiments of the present invention, there is provided a broadcast data processing method comprising: receiving broadcast data; And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time.

According to various embodiments of the present invention, there is provided a non-volatile storage medium storing a program to be executed in an electronic device for processing broadcast data, the program comprising: an operation of receiving broadcast data; And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time.

According to various embodiments of the present invention, it is possible to update the network delay time predetermined in receiving the broadcast data to reflect the actual network delay time according to the actual broadcast data reception time, so that when the broadcast data is received before the predetermined network delay time The broadcast data can be reproduced without waiting until predetermined network delay.

1 is a schematic diagram for explaining a broadcast service system according to various embodiments of the present invention.
FIG. 2 is a view for explaining a concept of delivering broadcast data to an electronic device according to various embodiments of the present invention.
3 is an example of an MPD configuration according to various embodiments of the present invention.
4 is a diagram of a network environment including an electronic device according to various embodiments of the present invention.
5 is a diagram illustrating a configuration of a broadcast service module according to various embodiments of the present invention.
6 is a diagram illustrating broadcast data processing operations of an electronic device according to various embodiments of the present invention.
7 is a diagram for describing an MPD update in an electronic device according to various embodiments of the present invention.
FIG. 8 is a diagram illustrating a configuration of an electronic device to which a broadcast data processing method according to various embodiments of the present invention is applied.

In the following, various embodiments of the disclosure can be described with reference to the accompanying drawings. The present disclosure is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and detailed description of the invention is set forth. It is to be understood, however, that this disclosure is not intended to be limited to the specific embodiments, but includes all changes and / or equivalents and alternatives falling within the spirit and scope of the disclosure. In connection with the description of the drawings, like reference numerals have been used for like elements.

Or "may" embody the use of the various embodiments of the present disclosure indicate the presence of the stated function, operation, or element, etc., and that additional features, Not limited. Furthermore, in various embodiments of the present disclosure, terms such as "comprises" or "having" are intended to specify that there exist features, numbers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In various embodiments of the present disclosure, the expressions "or" and the like include any and all combinations of words listed together. For example, "A or B" may comprise A, comprise B, or both A and B.

The expressions "first," " second, "" first," or "second, " and the like in the various embodiments of the present disclosure may modify various elements of the disclosure, but do not limit the elements. For example, the representations do not limit the order and / or importance of the components. The representations may be used to distinguish one component from another. For example, both the first user equipment and the second user equipment are user equipment and represent different user equipment. For example, without departing from the scope of the various embodiments of the present disclosure, a first component can be named a second component, and similarly, a second component can also be named a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in the various embodiments of this disclosure is used only to describe a specific embodiment and is not intended to limit the various embodiments of the disclosure. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and, unless expressly defined in the various embodiments of the present disclosure, are intended to be either ideal or overly formal It is not interpreted as meaning.

An electronic device according to various embodiments of the present disclosure may be a device including a broadcast channel receiving function. For example, the electronic device can be a smartphone, a tablet personal computer, a mobile phone, a videophone, an e-book reader, a desktop personal computer, a laptop Such as a laptop personal computer (PC), a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a mobile medical device, a camera, or a wearable device A head-mounted device (HMD) such as electronic glasses, an electronic garment, an electronic bracelet, an electronic necklace, an electronic app apparel, an electronic tattoo, or a smartwat Ch.

According to some embodiments, the electronic device may be a smart home appliance with broadcast channel receiving capability. [0003] Smart household appliances, such as electronic devices, are widely used in the fields of television, digital video disk (DVD) player, audio, refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air cleaner, set- And may include at least one of a box (e.g., Samsung HomeSyncTM, Apple TVTM, or Google TVTM), game consoles, an electronic dictionary, an electronic key, a camcorder, or an electronic frame.

According to some embodiments, the electronic device can be used in a variety of medical devices (e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography navigation device, GPS (global positioning system receiver), EDR (event data recorder), FDR (flight data recorder), automotive infotainment device, marine electronic equipment Electronic devices (avionics), security devices, or industrial or domestic robots.

According to some embodiments, the electronic device is a piece of furniture or a building / structure including a broadcast channel receiving function, an electronic board, an electronic signature receiving device, a projector, Or at least one of various measuring instruments (e.g., water, electricity, gas, or radio wave measuring instruments, etc.). An electronic device according to various embodiments of the present disclosure may be one or more of the various devices described above. It should also be apparent to those skilled in the art that the electronic device according to various embodiments of the present disclosure is not limited to the devices described above.

Hereinafter, an electronic device according to various embodiments will be described with reference to the accompanying drawings. The term user as used in various embodiments may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

1 is a diagram illustrating a configuration of a broadcast service system according to various embodiments of the present invention. The broadcast service system shown in FIG. 1 may be a broadcast service system based on an eMBMS.

In the following description, the broadcasting service is a broadcasting service based on eMBMS, but various embodiments of the present invention can be applied to various types of digital broadcasting services. For example, various embodiments of the present invention can be applied to DVB (Digital Video Broadcasting) service, DMB (Digital Multimedia Broadcasting) service, IPTV (Internet Protocol Television) service, and the like.

1, an eMBMS-based broadcasting service system includes a content provider 10, an encoder 15, a BM-SC (Broadcast Multicast Service Center) 20, a MBMS GW (Multimedia Broadcast / Multicast Service Gateway) 30, , And at least one eNodeB (40).

The content provider 10 may be a data source. The content provider 10 may be a multicast broadcast source server such as a video server, a file server, or a CDN node according to various embodiments. The content provider 10 may provide the content data.

The encoder 15 may encode the content data supplied by the content provider 10 in a manner to provide a predetermined broadcast service. According to one embodiment, the encoder 15 may be a DASH encoder and may encode the content data in a dynamic adaptive streaming over HTTP (DASH) scheme for eMBMS service. The encoder 15 may include MPD (Media Presentation Description), which is media presentation information, in the encoded content data. The MPD of the encoded content data may include an anchor for the calculation of the initial availability time for all segments of the media presentation, i.e., the availability start time of the media segment, e.g., AvailabilityStartTime (hereinafter also referred to as " AST "). The encoder 15 may provide the encoded content data to the BM-SC 20.

The BM-SC 20 is a node responsible for eMBMS service control and may exist as a functional element in an LTE (Long Term Evolution) network to provide an eMBMS service. The BM-SC 20 is the subject of management and control of the eMBMS service, and presides the MBMS Session Start procedure or the MBMS Session Stop procedure to manage the start and end of all broadcast and multicast type eMBMS services . At this time, an eMBMS bearer setup process for delivering broadcast data, for example, content delivery, is performed. Each bearer can be configured to use resources based on broadcast data, e.g., bearer transmission capacity, QoS information, etc. according to characteristics of contents. In addition, in the case of the multicast service, the multicast join from the electronic device 100 may be received and a multicast tree may be constructed to transmit the data to be transmitted by the corresponding service to the electronic device 100. The configuration of the multicast tree can be performed through the MBMS Activation procedure. At this time, in the MBMS Activation procedure, the upper node registers a path connected to the corresponding electronic device through the lower nodes, and the BM-SC 20, the MBMS 2 32, the MBMS 1 31, the eNodeB (40), and the electronic device (100), respectively, may generate the bearer context for the eMBMS service.

In addition, the BM-SC 20 may generate broadcast data for providing an eMBMS service using the encoded content data from the encoder 15. According to one embodiment, the BM-SC 20 transmits the broadcast data including FEC (Forward Error Correction) information and SA (Service Announcement) information, such as FLUTE data, using the DASH- Lt; / RTI > The FEC information may include at least one media symbol and a repair symbol. The SA may provide information about the broadcast channel. The SA may include information such as MPD, Session Description Protocol (SDP), and schedule information for each broadcast channel. According to one embodiment, the BM-SC 20 transmits an AST (hereinafter also referred to as a first AST) in an MPD (hereinafter also referred to as a first MPD) contained in content data encoded by the encoder 15 (Hereinafter, also referred to as a second MPD) including an AST plus a predetermined network delay time (hereinafter also referred to as a second AST), and to include the second MPD in the SA information. The BM-SC 20 may generate FLUTE data including SA information and FEC information including a second AST to which a predetermined network delay time is added, and may transmit the FLUTE data to the MBMS GW 30.

The MBMS GW 30 is capable of performing EUTRAN (Evolved Universal Mobile Telecommunications Terrestrial Radio Access Network) as a gateway device and traffic transmission / reception from outside the network. The MBMS GW 30 may include an MBMS 1 31 and an MBMS 2 32. The MBMS 2 (32) can perform a session control function in the mobile communication network to support the eMBMS service. In addition, the MBMS 2 (32) manages the MBMS traffic path and transmits the traffic through the set path, thereby taking charge of the MBMS gateway function. In other words, the MBMS GW 30 can set up an MBMS bearer for the eMBMS service and provide the function of transmitting broadcast data, for example, contents. According to another embodiment, a session control function in the mobile communication network may be performed by an apparatus other than the MBMS-GW in order to support the eMBMS service according to the implementation details of the infra-structure (network) providing the eMBMS service. According to an embodiment, a session control function in a mobile communication network may be performed in an MME (Mobility Management Entity) in order to support an eMBMS service.

At least one eNodeB 40 may be included in the EUTRAN. The eNodeB 40 may receive uplink signals transmitted from the electronic device 100 at a physical layer level and may transmit downlink signals to the electronic device 100. [ That is, the eNodeB 40 transmits and receives signals to and from the electronic device 100 and can serve as an access point of the electronic device 100. The eNodeB 40 manages radio resources per cell, And can communicate with the electronic device 100 present in the cell.

The electronic device 100 may receive broadcast data, e. G. Multimedia content packets, broadcast from the eNodeB 40. e.

FIG. 2 is a view for explaining a concept of delivering broadcast data to an electronic device according to various embodiments of the present invention.

Referring to FIG. 2, the encoder 15 may be a DASH encoder, and may encode the content data in a dynamic adaptive streaming over HTTP (DASH) scheme for an eMBMS service. According to one embodiment, the encoded content data may include an FMP4 file encoded using MPD (hereinafter referred to as 'first MPD') and fmp4 (fragmented mp4) codec, which are media presentation information. The first MPD may include an anchor for calculating the first available time for all segments of the media presentation, i.e., the available start time of the media segment, e.g., AST (also referred to as a first AST). The encoder 15 may provide the encoded content data, i.e., the first MPD and the FMP4 file, to the BM-SC 20.

According to one embodiment, the BM-SC 20 may also generate broadcast data for providing an eMBMS service using the encoded content data from the encoder 15. For example, the BM-SC 20 transmits the broadcast data including FEC (Forward Error Correction) information and SA (Service Announcement) information, for example, FLUTE data, using the DASH-formatted content data from the encoder 15 Can be generated. The FEC information may include at least one media symbol and a repair symbol. The SA may include various broadcast service related information such as MPD (hereinafter referred to as 'second MPD'), SPD, schedule information, and the like. According to one embodiment, the BM-SC 20 transmits an AST (hereinafter also referred to as a second AST) added with a predetermined network delay time to the first AST in the first MPD included in the content data encoded by the encoder 15 And a second MPD. The BM-SC 20 may include the second MPD in the SA information. The BM-SC 20 may generate FLUTE data including SA information and FEC information having a second MPD including the second AST and transmit the FLUTE data to the eNodeB 40 through the MBMS GW 30. [

According to one embodiment, the connection between the electronic devices 100 in the eNodeB 40 may be based on an Internet Protocol Multicast Network (IP multicast network). Each eMBMS bearer transmits at least one service and can be divided into TMGI (Temporary Mobile Group Identity). For example, an eMBMS bearer in a broadcast service may correspond to a broadcast channel, and a plurality of broadcast channels may be classified into TMGIs. The electronic device 100 may receive multimedia content packet data corresponding to a corresponding eMBMS bearer in order to receive broadcast data of a broadcast channel provided by an eMBMS-based broadcast service.

3 is an example of an MPD configuration according to various embodiments of the present invention. Referring to FIG. 3, the BM-SC 20 determines whether the first AST in the first MPD included in the content data encoded by the encoder 15 according to one embodiment is availableStartTime = " 2013-09-01T18: 00: 00Z, the BM-SC 20 may generate a second MPD including a second AST, e.g. availabilityStartTime = " 2013-09-01T18: 00: 06Z, plus a predetermined network delay time of 6 seconds. Broadcast data including the second MPD may be broadcast through the MBMS GW 30 and the eNodeB 40. [ The electronic device 100 may receive and reproduce broadcast data including a second MPD to be broadcasted.

The electronic device 100 can reproduce broadcast data by reflecting a predetermined network delay time provided by the eMBMS system when receiving eMBMS-based broadcast data. However, since the predetermined network delay time provided by the eMBMS system is often set as a maximum value allowed to receive the eMBMS service, the actual network delay time may be smaller than a predetermined network delay time provided by the eMBMS system high.

The electronic device 100 can reproduce the broadcast data when the actual network delay time is less than the predetermined network delay time provided by the eMBMS system when receiving the eMBMS based broadcast data, Can occur. In this case, although the electronic device 100 can reproduce the received broadcast data, the electronic device 100 may have to wait for a certain period of time.

According to various embodiments of the present invention, the electronic device 100 may update the predetermined network delay time at the time of receiving the broadcast data to reflect the actual network delay time according to the actual broadcast data reception time. Accordingly, the electronic device 100 can reproduce broadcast data without waiting for a predetermined network delay when broadcast data is received before a predetermined network delay time.

4 illustrates a network environment including an electronic device 100, in accordance with various embodiments. 4, an electronic device 100 includes a bus 110, a processor 120, a memory 130, an input / output interface 140, a display 150, a communication interface 160, . ≪ / RTI >

The bus 110 may be a circuit that interconnects the components described above and communicates (e.g., control messages) between the components described above.

Processor 120 may be coupled to other components (e.g., memory 130, input / output interface 140, display 150, communication interface 160, or broadcast service) via bus 110, Module 170, etc.), decrypt the received command, and perform computations or data processing according to the decrypted command.

Memory 130 may be received from processor 120 or other components (e.g., input / output interface 140, display 150, communication interface 160, or broadcast service module 170) ) Or may store instructions or data generated by other components. The memory 130 may include programming modules such as, for example, a kernel 131, a middleware 132, an application programming interface (API) 133, or an application 134. Each of the above-described programming modules may be composed of software, firmware, hardware, or a combination of at least two of them.

The kernel 131 may be used to store system resources (e. G., Buses (e. G., Buses)) used to execute operations or functions implemented in the rest of the programming modules, e. G., Middleware 132, API 133, 110, processor 120, memory 130, etc.). The kernel 131 may also provide an interface through which the individual components of the electronic device 100 may be accessed and controlled or managed in the middleware 132, the API 133, or the application 134.

The middleware 132 can act as an intermediary for the API 133 or the application 134 to communicate with the kernel 131 to exchange data. The middleware 132 may also be configured to communicate system resources (e.g., bus 110) of the electronic device 100 to at least one application of the application 134, for example in connection with work requests received from the application 134. [ (E.g., scheduling or load balancing) of a work request using a method such as assigning a priority that can be used by a processor (e.g., processor 120, memory 130, etc.).

The API 133 is an interface for the application 134 to control the functions provided by the kernel 131 or the middleware 132 and includes at least one interface for controlling the functions of the application 134 such as file control, Interface or function (e.g., command).

According to various embodiments, application 134 may be an SMS / MMS application, an email application, a calendar application, an alarm application, a health care application (e.g., an application that measures momentum or blood glucose) : An application that provides atmospheric pressure, humidity, or temperature information, etc.). The application 134 may be an application related to the exchange of information between the electronic device 100 and an external electronic device (e.g., electronic device 104). An application related to information exchange may include, for example, a notification relay application for communicating specific information to an external electronic device, or a device management application for managing an external electronic device.

For example, the notification delivery application may send notification information from another application (e.g., SMS / MMS application, email application, health care application or environmental information application) of the electronic device 100 to an external electronic device 104). ≪ / RTI > Additionally or alternatively, the notification delivery application may receive notification information from, for example, an external electronic device (e.g., electronic device 104) and provide it to the user. The device management application may be capable of performing functions (e.g., of the external electronic device itself (or some component)) on at least a portion of an external electronic device (e.g., electronic device 104) (Eg, install, delete, or update) a service (eg, call service or message service) provided by an application running on an external electronic device or external electronic device )can do.

According to various embodiments, the application 134 may include an application specified in accordance with the attributes (e.g., the type of electronic device) of the external electronic device (e.g., the electronic device 104). For example, if the external electronic device is an MP3 player, the application 134 may include an application related to music playback. Similarly, if the external electronic device is a mobile medical device, the application 134 may include applications related to health care. According to one embodiment, application 134 may include at least one of an application specified in electronic device 100 or an application received from an external electronic device (e.g., server 106 or electronic device 104).

The input / output interface 140 is connected to the processor 120, the memory 130, and the memory 130 via a bus 110, for example, by a command or data input from a user via an input / output device (e.g., The communication interface 160, or the broadcasting service module 170. [ For example, the input / output interface 140 may provide data to the processor 120 about the user's touch input through the touch screen. The input / output interface 140 is connected to the processor 120, the memory 130, the communication interface 160, or the broadcast service module 170 via the bus 110, for example, Or through a device (e.g., a speaker or display). For example, the input / output interface 140 may output audio data processed through the processor 120 to a user through a speaker.

The display 150 may display various information (e.g., multimedia data or text data) to the user.

The communication interface 160 may connect communications between the electronic device 100 and an external device (e.g., the electronic device 104 or the server 106). For example, the communication interface 160 may be connected to the network 162 via wireless or wired communication to communicate with external devices. The wireless communication may be, for example, wireless fidelity (WFI), Bluetooth (BT), near field communication (NFC), global positioning system (GPS), or cellular communication (e.g., LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro or GSM, etc.). The wired communication may include at least one of, for example, a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard 232 (RS-232) or a plain old telephone service (POTS).

The communication interface 160 may include a broadcast receiving module 161. The broadcast receiving module 161 may receive broadcast data from the broadcast service system as shown in FIG. 1 under the control of the broadcast service module 170, for example. According to one embodiment, the broadcast data may be content data and may include multimedia data (e.g., moving picture, still picture, picture file, picture, or audio) or text data. According to one embodiment, at least a portion of the broadcast data may be received in the form of packets. The received broadcast data may be transmitted to the broadcast service module 170 via the bus 110. In various embodiments, the broadcast receiving module 161 concurrently connects a plurality of broadcast channels (eMBMS bearer) under the control of the broadcast service module 170, receives broadcast data of each broadcast channel , And may transmit the received broadcast data to the broadcast service module 170 through the bus 110.

According to one embodiment, the network 162 may be a telecommunications network. The communication network may include at least one of a computer network, an internet, an internet of things, or a telephone network. (E.g., a transport layer protocol, a data link layer protocol, or a physical layer protocol) for communication between the electronic device 100 and an external device may include an application 134, an application programming interface 133, The kernel 131, or the communication interface 160. In this case,

The broadcast service module 170 processes at least some of the information obtained from other components (e.g., processor 120, memory 130, input / output interface 140, or communication interface 160) This can be provided to the user in various ways. For example, the broadcast service module 170 processes and reproduces the broadcast data transmitted from the broadcast receiving module 161 using the processor 120 or independently of the processor 120 to display the image data on the display 150 Alternatively, audio data may be output through the input / output interface 140. [ In other words, the broadcast service module 170 may cause the broadcast data of the broadcast channel requested by the user to be received, and process the received broadcast data so that the requested broadcast channel is output to the user.

According to various embodiments, when the broadcast data is received by the broadcast receiving module 161, the broadcast service module 170 may store the broadcast data and may analyze the SA included in the broadcast data. The broadcast service module 170 can compare the start time of storing the broadcast data as a result of the SA analysis and the second AST included in the second MPD of the SA. According to one embodiment, the broadcast data storage start time may be a time when the first segment of broadcast data is stored. If the broadcast data storage start time is earlier than the second AST included in the second MPD of the SA, the broadcast service module 170 updates the second AST included in the second MPD of the SA to the third AST according to the broadcast data storage start time can do. The broadcast service module 170 can reproduce the broadcast data according to the third AST.

According to one embodiment, the electronic device 100 includes a broadcast receiving module for receiving broadcast data and a broadcast service module for updating the start time of use of broadcast data included in the broadcast data when receiving the broadcast data, according to the actual broadcast data reception time .

5 is a diagram illustrating the configuration of a broadcast service module 170 of an electronic device (e.g., electronic device 100), according to various embodiments. 5, the broadcast service module 170 may include a middleware 171, a streaming client 172, and an application 173. [

According to one embodiment, the application 173 may manage a user interface used for providing a broadcast service. For example, the application 173 may provide the user interface used in controlling the user's broadcast service through the input / output interface 140 (e.g., a touch screen) and may receive input from the user via the input / To the middleware 171. The middleware 171, The application 173 allows the video data and audio data transmitted from the streaming client 172 to be output through the display 150 and the speaker.

According to one embodiment, the middleware 171 can act as an intermediary for exchanging data between the broadcast receiving module 161 and the streaming client 172 or between the broadcast receiving module 161 and the application 173. The middleware 171 may store the service guide information received through the broadcast receiving module 161 and may provide the service guide information to the user through the application 173. [ The service guide information may include channel information and program information provided by each channel as guide information for broadcast contents provided by the broadcast service. And the middleware 171 can perform control on the user request transmitted from the application 173. [ For example, the middleware 171 may receive broadcast data of a corresponding broadcast channel through the broadcast receiving module 161 according to a user's channel playback request. The middleware 171 may store broadcast data. The middleware 171 can analyze the SA included in the broadcast data. The broadcast service module 170 can compare the start time of storing the broadcast data as a result of the SA analysis and the second AST included in the second MPD of the SA. According to one embodiment, the broadcast data storage start time may be a time when the first segment of broadcast data is stored. If the broadcast data storage start time is earlier than the second AST included in the second MPD of the SA, the broadcast service module 170 updates the second AST included in the second MPD of the SA to the third AST according to the broadcast data storage start time can do. The broadcast service module 170 may transmit the broadcast data to the streaming client 172 according to the third AST. The middleware 171 may serve as a streaming server for the streaming client 172. This middleware 171 may be eMBMS middleware, for example. The middleware 171 may exist outside the broadcasting service module 170.

According to one embodiment, the streaming client 172 decodes broadcast data received from the middleware 171 into an appropriate video format or audio format under the control of the middleware 171, Lt; RTI ID = 0.0 > streaming < / RTI > For example, the example streaming client 172 may be a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) client.

The broadcast data processing operation of the electronic device 100 when the broadcast service module 170 according to an embodiment of the present invention is included in the electronic device 100 will be described.

According to one embodiment, the electronic device 100 includes a broadcast receiving module 161 for receiving broadcast data; And a broadcast service module functionally coupled to the broadcast receiving module 170. The broadcast service module 170 receives at least a part of the reproduction related information of the broadcast data after receiving the broadcast data, May be set to update based on

According to one embodiment, the broadcast service module 170 may include an available start time, at least a part of the reproduction related information of the broadcast data.

According to one embodiment, the broadcast service module 170 may check the available start time and the broadcast data storage time included in the broadcast data, and update the broadcast data availability start time based on the broadcast data storage time . ≪ / RTI >

According to one embodiment, the broadcast service module 170 stores the broadcast data, confirms the AST (AvailabilityStartTime) of the MPD (Media Presentation Description) included in the broadcast data and the broadcast data storage time, A middleware 171 for updating the AST on the basis of a data storage time, and a decoder 173 for receiving broadcast data from the middleware 171 and decoding the decoded audio data in an appropriate video format or audio format to output streaming video data and audio data A streaming client 172, and an application 173 for outputting the image data and audio data according to the updated AST.

According to one embodiment, the streaming client may be a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) client.

6 is a diagram illustrating broadcast data processing operations of the electronic device 100 according to various embodiments of the present invention. Referring to FIG. 6, the electronic device 100 may receive broadcast data in 602 operation. According to one embodiment, the broadcast data may be received through the broadcast receiving module 161, and the received broadcast data may be transmitted to the broadcast service module 170 through the bus 110. According to one embodiment, the broadcast data may include content data and may include multimedia data (e.g., moving picture, still picture, picture file, picture, or audio) or text data. According to one embodiment, the broadcast data may be broadcast data based on an eMBMS service, and may include SA information and FEC information. Also, according to one embodiment, at least a part of the broadcast data may be received in a packet form. According to one embodiment, the electronic device 100 may receive the SA to obtain information on the broadcast channel, and receive the content data of each broadcast channel using the information on each broadcast channel.

The electronic device 100 may store the received broadcast data in operation 604. [ According to one embodiment, the received broadcast data may be stored in the middleware 171 of the broadcast service module 170.

The electronic device 100 may obtain the AST by analyzing the MPD included in the broadcast data stored at operation 606. [ According to one embodiment, the middleware 171 of the broadcast service module 170 may acquire the second AST by analyzing the second MPD included in the SA information included in the broadcast data. According to one embodiment, the second AST may be the time added to the first AST in the first MPD included in the content data encoded by the encoder 15 plus a predetermined network delay time.

The electronic device 100 may compare the AST obtained from the broadcast data in the 608 operation with the broadcast data storage time. According to one embodiment, the broadcast data storage start time may be a time at which the first segment of broadcast data is stored. According to one embodiment, the middleware 171 of the broadcast service module 170 may compare the broadcast data start time with the second AST included in the second MPD of the SA of the stored broadcast data.

The electronic device 100 can determine whether the broadcast data storage start time is earlier than the AST in the 610 operation. According to one embodiment, the middleware 171 of the broadcast service module 170 may determine whether the broadcast data storage start time is earlier than the AST. According to one embodiment, the broadcasting data storage start time is earlier than the AST, which means that the actual network delay time is less than the predetermined network delay time.

The electronic device 100 may update the AST to the broadcast data storage start time at operation 612 if the broadcast data storage start time is earlier than the AST. According to one embodiment, the middleware 171 of the broadcast service module 170 may update the second AST included in the second MPD of the SA of the stored broadcast data to the third AST corresponding to the broadcast data storage start time have. According to one embodiment, the middleware 171 of the broadcast service module 170 extracts the second MPD information in the SA and transmits a separate file including the third AST, for example, a third MPD (for example, ch1.mpd) Can be generated.

The electronic device 100 can reproduce the broadcast data according to the AST in the 614 operation. According to one embodiment, the middleware 171 of the broadcast service module 170 may transmit the broadcast data to the streaming client 172 according to the updated third AST. The streaming client 172 decodes the broadcast data received from the middleware 171 into an appropriate video format or audio format under the control of the middleware 171 so that video data and audio data are streamed out through the application 173 I can do it.

7 is a diagram illustrating an AST update in an electronic device 100 according to various embodiments of the present invention. Referring to FIG. 7, the electronic device 100 may analyze a second MPD of SAs included in broadcast data according to one embodiment. The electronic device 100 can compare the broadcast data storage start time with the second AST 710 included in the second MPD as shown in FIG. For example, if the second AST 710 included in the second MPD is availabilityStartTime = "2013-09-01T18: 00: 06Z, as shown in FIG. 7A, It is possible to compare the storage start time with the time of "2013-09-01T18: 00: 06Z." According to one embodiment, the broadcast data storage start time may be the time when the first segment of the broadcast data is stored. 100: " 2013-09-01T18: 00: 03Z ", which is earlier than "2013-09-01T18: 00: 06Z" Similarly, the availabilityStartTime = "2013-09-01T18: 00: 06Z of the second AST 710 can be updated to the third AST 720, that is, availabilityStartTime =" 2013-09-01T18: 00: 06Z.

According to one embodiment, there is provided a broadcast data processing method comprising: receiving broadcast data; And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time.

According to one embodiment, at least a part of the reproduction-related information of the broadcast data may include an available start time.

According to one embodiment, the updating operation may include checking an available start time and the broadcast data storage time included in the broadcast data, and updating the broadcast data availability start time based on the broadcast data storage time .

According to one embodiment, the updating operation may be performed by checking the AST (AvailabilityStartTime) of the MPD (Media Presentation Description) included in the broadcast data and the broadcast data storage time, Updating operations.

According to one embodiment, the broadcast data processing method includes: receiving the broadcast data and decoding the broadcast data into an appropriate video format or audio format, and outputting streaming video data and audio data; And displaying the image data and audio data according to the updated AST.

According to one embodiment, the decoding may be a decoding using a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) scheme.

8 is a diagram illustrating a configuration of an electronic device 100 to which a broadcast data processing method according to various embodiments of the present invention is applied. The electronic device 800 may constitute all or part of the electronic device 100 shown in Fig. 3, for example. 8, the electronic device 800 includes at least one application processor (AP) 810, a communication module 820, a subscriber identification module (SIM) card 824, a memory 830, Module 840, an input device 850, a display 860, an interface 870, an audio module 880, a camera module 891, a power management module 895, a battery 896, an indicator 897, A motor 898, and a broadcast service module 600.

The AP 810 may control a plurality of hardware or software components connected to the AP 810 by driving an operating system or an application program, and may perform various data processing and operations including multimedia data. The AP 810 may be implemented as a system on chip (SoC), for example. According to one embodiment, the AP 810 may further include a graphics processing unit (GPU) (not shown).

The communication module 820 (e.g., the communication interface 160) may communicate with other electronic devices (e.g., electronic device 104 or server 106) that are networked with the electronic device 800 (e.g., the electronic device 100) Data transmission / reception can be performed in the communication between the base station and the base station. According to one embodiment, the communication module 820 includes a cellular module 821, a Wifi module 823, a BT module 825, a GPS module 827, an NFC module 828, and a radio frequency (RF) module 829, and a broadcast receiving module 700.

The cellular module 821 may provide voice calls, video calls, text services, or Internet services over a communication network (e.g., LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro or GSM). The cellular module 821 may also perform identification and authentication of electronic devices within the communication network using, for example, a subscriber identity module (e.g., SIM card 824). According to one embodiment, the cellular module 821 may perform at least some of the functions that the AP 810 may provide. For example, the cellular module 821 may perform at least some of the multimedia control functions.

According to one embodiment, the cellular module 821 may include a communication processor (CP). In addition, the cellular module 821 may be implemented with an SoC, for example. 8, components such as the cellular module 821 (e.g., communication processor), the memory 830, or the power management module 895 are shown as separate components from the AP 810, According to an embodiment, the AP 810 may be implemented to include at least a portion of the aforementioned components (e.g., cellular module 821).

According to one embodiment, the AP 810 or the cellular module 821 (e.g., a communications processor) may load or read commands or data received from at least one of non-volatile memory or other components connected thereto, load. In addition, the AP 810 or the cellular module 821 may receive data from at least one of the other components or may store data generated by at least one of the other components in the non-volatile memory.

Each of the Wifi module 823, the BT module 825, the GPS module 827, and the NFC module 828 includes a processor for processing data transmitted and received through a corresponding module, for example . Although the cellular module 821, the Wifi module 823, the BT module 825, the GPS module 827, or the NFC module 828 are shown as separate blocks in FIG. 8, according to one embodiment, At least some (e.g., two or more) of the wireless module 821, the Wifi module 823, the BT module 825, the GPS module 827 or the NFC module 828 may be included in one integrated chip (IC) have. (E.g., cellular module 821) of the processors corresponding to each of cellular module 821, Wifi module 823, BT module 825, GPS module 827, or NFC module 828, And a Wifi processor corresponding to the Wifi module 823) can be implemented in one SoC.

The RF module 829 can transmit and receive data, for example, transmit and receive RF signals. The RF module 829 may include, for example, a transceiver, a power amplifier module (PAM), a frequency filter, or a low noise amplifier (LNA). In addition, the RF module 829 may further include a component for transmitting and receiving electromagnetic waves in a free space in a wireless communication, for example, a conductor or a conductor. 8, the cellular module 821, the Wifi module 823, the BT module 825, the GPS module 827, and the NFC module 828 are shown sharing one RF module 829, At least one of the cellular module 821, the Wifi module 823, the BT module 825, the GPS module 827, or the NFC module 828 transmits and receives an RF signal through a separate RF module can do.

The SIM card 824 may be a card including a subscriber identity module and may be inserted into a slot formed at a specific location of the electronic device. The SIM card 824 may include unique identification information (e.g., an integrated circuit card identifier (ICCID)) or subscriber information (e.g., international mobile subscriber identity (IMSI)).

The memory 830 (e.g., the memory 130) may include an internal memory 832 or an external memory 834. The built-in memory 832 may be a nonvolatile memory such as a dynamic RAM (DRAM), a static RAM (SRAM), a synchronous dynamic RAM (SDRAM), or the like, For example, one time programmable ROM (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, NAND flash memory, And may include at least one.

According to one embodiment, the internal memory 832 may be a solid state drive (SSD). The external memory 834 may be a flash drive such as a compact flash (CF), a secure digital (SD), a micro secure digital (SD), a mini secure digital (SD), an extreme digital A Memory Stick, and the like. The external memory 834 may be functionally connected to the electronic device 800 through various interfaces. According to one embodiment, the electronic device 800 may further include a storage device (or storage medium) such as a hard drive.

The sensor module 840 may measure a physical quantity or sense an operating state of the electronic device 800 and convert the measured or sensed information into an electrical signal. The sensor module 840 includes a gesture sensor 840A, a gyro sensor 840B, an air pressure sensor 840C, a magnetic sensor 840D, an acceleration sensor 840E, a grip sensor 840F, A color sensor 840G, a color sensor 840H such as an RGB (red, green, blue) sensor, a biosensor 840I, a temperature / humidity sensor 840J, an illuminance sensor 840K, 840M). ≪ / RTI > Additionally or alternatively, the sensor module 840 may include, for example, an E-nose sensor (not shown), an EMG sensor (not shown), an EEG sensor (not shown) (Not shown), an iris sensor (not shown), or a fingerprint sensor (not shown). The sensor module 840 may further include a control circuit for controlling at least one sensor included in the sensor module 840.

The input device 850 may include a touch panel 852, a (digital) pen sensor 854, a key 856 or an ultrasonic input device 858 . The touch panel 852 can recognize a touch input in at least one of an electrostatic type, a pressure sensitive type, an infrared type, and an ultrasonic type. In addition, the touch panel 852 may further include a control circuit. In electrostatic mode, physical contact or proximity recognition is possible. The touch panel 852 may further include a tactile layer. In this case, the touch panel 852 may provide a tactile response to the user.

The (digital) pen sensor 854 may be implemented using the same or similar method as receiving the touch input of the user, for example, or using a separate recognition sheet. The key 856 may include, for example, a physical button, an optical key or a keypad. The ultrasonic input device 858 is an apparatus that can confirm data by sensing sound waves from an electronic device 800 to a microphone (e.g., a microphone 888) through an input tool for generating an ultrasonic signal, Recognition is possible. According to one embodiment, the electronic device 800 may use the communication module 820 to receive user input from an external device (e.g., a computer or a server) connected thereto.

The display 860 (e.g., the display 150) may include a panel 862, a hologram device 864, or a projector 866. The panel 862 may be, for example, a liquid-crystal display (LCD) or an active-matrix organic light-emitting diode (AM-OLED). The panel 862 may be embodied, for example, flexible, transparent or wearable. The panel 862 may be formed of a single module with the touch panel 852. The hologram device 864 can display a stereoscopic image in the air using interference of light. The projector 866 can display an image by projecting light onto a screen. The screen may be located, for example, inside or outside the electronic device 800. According to one embodiment, the display 860 may further include control circuitry for controlling the panel 862, the hologram device 864, or the projector 866.

The interface 870 may include a high-definition multimedia interface (HDMI) 872, a universal serial bus (USB) 874, an optical interface 876, or a D- ) ≪ / RTI > The interface 870 may be included in, for example, the communication interface 160 shown in FIG. Additionally or alternatively, the interface 870 may be implemented with a mobile high-definition link (MHL) interface, a secure digital (SD) card / multi-media card (MMC) interface, or an infrared data association . ≪ / RTI >

The audio module 880 can convert sound and electrical signals in both directions. At least some of the components of the audio module 880 may be included, for example, in the input / output interface 140 shown in FIG. The audio module 880 may process sound information input or output through, for example, a speaker 882, a receiver 884, an earphone 886, a microphone 888, or the like.

The camera module 891 can capture still images and moving images. According to one embodiment, the camera module 891 includes at least one image sensor (e.g., a front sensor or a rear sensor), a lens (not shown), an image signal processor (Not shown) or a flash (not shown), such as an LED or xenon lamp.

The power management module 895 may manage the power of the electronic device 800. Although not shown, the power management module 895 may include, for example, a power management integrated circuit (PMIC), a charger integrated circuit (PMIC), or a battery or fuel gauge.

The PMIC can be mounted, for example, in an integrated circuit or a SoC semiconductor. The charging method can be classified into wired and wireless. The charging IC can charge the battery, and can prevent an overvoltage or an overcurrent from the charger. According to one embodiment, the charging IC may comprise a charging IC for at least one of a wired charging scheme or a wireless charging scheme. The wireless charging system may be, for example, a magnetic resonance system, a magnetic induction system or an electromagnetic wave system, and additional circuits for wireless charging may be added, such as a coil loop, a resonant circuit or a rectifier have.

The battery gauge can measure the remaining amount of the battery 896, the voltage during charging, the current or the temperature, for example. The battery 896 may store or generate electricity and may supply power to the electronic device 800 using stored or generated electricity. The battery 896 may include, for example, a rechargeable battery or a solar battery.

The indicator 897 may indicate a specific state of the electronic device 800 or a portion thereof (e.g., the AP 810), such as a boot state, a message state, or a charged state. The motor 898 can convert an electrical signal to mechanical vibration. Although not shown, the electronic device 800 may include a processing unit (e.g., a GPU) for mobile TV support. The processing device for supporting the mobile TV can process media data conforming to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or media flow.

Each of the above-described components of the electronic device according to various embodiments of the present disclosure may be comprised of one or more components, the names of which may vary depending on the type of electronic device. An electronic device according to various embodiments of the present disclosure may be configured to include at least one of the components described above, with some components omitted or further comprising additional components. In addition, some of the components of the electronic device according to various embodiments of the present disclosure may be combined and configured as an entity, so that the functions of the components before being combined can be performed in the same manner.

The term "module" as used in various embodiments of the present disclosure may mean a unit comprising, for example, one or a combination of two or more of hardware, software or firmware. A "module" may be interchangeably used with terms such as, for example, unit, logic, logical block, component or circuit. A "module" may be a minimum unit or a portion of an integrally constructed component. A "module" may be a minimum unit or a portion thereof that performs one or more functions. "Modules" may be implemented either mechanically or electronically. For example, a "module" in accordance with various embodiments of the present disclosure may be implemented as an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs) And a programmable-logic device.

According to various embodiments, at least a portion of a device (e.g., modules or functions thereof) or a method (e.g., operations) according to various embodiments of the present disclosure may be, for example, a computer readable And may be implemented with instructions stored on a computer-readable storage medium. The instructions, when executed by one or more processors (e.g., the processor 120), may cause the one or more processors to perform functions corresponding to the instructions. The computer readable storage medium may be, for example, the memory 130. [ At least some of the programming modules may be implemented (e.g., executed) by the processor 120, for example. At least some of the programming modules may include, for example, modules, programs, routines, sets of instructions or processes, etc. to perform one or more functions.

The computer-readable recording medium includes a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc) A magneto-optical medium such as a floppy disk, and a program command such as a read only memory (ROM), a random access memory (RAM), a flash memory, Module) that is configured to store and perform the functions described herein. The program instructions may also 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. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the various embodiments of the present disclosure and vice versa.

According to one embodiment, there is provided a non-volatile storage medium for storing a program to be executed in an electronic device for processing broadcast data, the program comprising: an operation of receiving broadcast data; And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time. Modules or programming modules according to various embodiments of the present disclosure may include at least one or more of the elements described above, some of which may be omitted, or may further include other additional elements. Operations performed by modules, programming modules, or other components in accordance with various embodiments of the present disclosure may be performed in a sequential, parallel, iterative, or heuristic manner. Also, some operations may be performed in a different order, omitted, or other operations may be added.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments but should be determined by the equivalents of the claims and the claims.

Claims (12)

In an electronic device,
A broadcast receiving module for receiving broadcast data; And
And a broadcast service module functionally coupled to the broadcast receiving module,
And update at least a part of the reproduction-related information of the broadcast data after receiving the broadcast data based on the broadcast data storage time.
The method as claimed in claim 1,
Wherein at least a part of the reproduction-related information of the broadcast data includes an available start time.
3. The method of claim 2,
And to check the available start time and the broadcast data storage time included in the broadcast data and to update the broadcast data availability start time based on the broadcast data storage time.
The method of claim 3, wherein the broadcast service module comprises:
Middleware for storing the broadcast data, checking an AST (AvailabilityStartTime) of an MPD (Media Presentation Description) included in the broadcast data and the broadcast data storage time, and updating the AST based on the broadcast data storage time,
A streaming client that receives broadcast data from the middleware and decodes the broadcast data into an appropriate video format or audio format so that video data and audio data can be streamed out;
And outputting the image data and audio data in accordance with the updated AST.
5. The electronic device of claim 4, wherein the streaming client is a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) client.
A broadcast data processing method comprising:
Receiving broadcast data; And
And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time.
The method according to claim 6,
Wherein at least a part of the reproduction-related information of the broadcast data includes an available start time.
8. The method of claim 7,
Checking an available start time and the broadcast data storage time included in the broadcast data, and updating the broadcast data availability start time based on the broadcast data storage time.
9. The method of claim 8,
Checking an AST (AvailabilityStartTime) of an MPD (Media Presentation Description) included in the broadcast data and the broadcast data storage time, and updating the AST based on the broadcast data storage time.
10. The method of claim 9,
Receiving the broadcast data, decoding the broadcast data into a proper video format or audio format, and outputting streaming video data and audio data; And
And displaying the video data and audio data according to the updated AST.
10. The method of claim 9,
Wherein the decoding is performed by a DASH (Dynamic Adaptive Streaming over Hypertext Transfer Protocol) method.
A non-volatile storage medium storing a program to be executed in an electronic device for processing broadcast data,
The program includes:
Receiving broadcast data; And
And updating at least a part of the reproduction-related information of the broadcast data based on the broadcast data storage time.

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