EP1774778A1 - Dmb/mobile telecommunication integrated service terminal apparatus and method for network linkage between dmb and mobile telecommunication - Google Patents

Dmb/mobile telecommunication integrated service terminal apparatus and method for network linkage between dmb and mobile telecommunication

Info

Publication number
EP1774778A1
EP1774778A1 EP05740847A EP05740847A EP1774778A1 EP 1774778 A1 EP1774778 A1 EP 1774778A1 EP 05740847 A EP05740847 A EP 05740847A EP 05740847 A EP05740847 A EP 05740847A EP 1774778 A1 EP1774778 A1 EP 1774778A1
Authority
EP
European Patent Office
Prior art keywords
dmb
mobile telecommunication
data
application program
mobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05740847A
Other languages
German (de)
French (fr)
Other versions
EP1774778A4 (en
Inventor
Gwang-Soon Lee
Byungjun Bae
Woo-Suk Kim
Young-Kwon Hahm
Soo-In Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020050027365A external-priority patent/KR100701004B1/en
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP1774778A1 publication Critical patent/EP1774778A1/en
Publication of EP1774778A4 publication Critical patent/EP1774778A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/90—Wireless transmission systems
    • H04H60/91—Mobile communication networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal

Definitions

  • the present invention relates to a Digital Multimedia broadcasting (DMB)/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network, ; and, more particularly, to a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network, which can provide a DMB broadcasting service in a mobile environment and a two-way data service through a mobile telecommunication network simultaneously by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting them into one entity, and a method thereof.
  • DMB Digital Multimedia broadcasting
  • a modem has a low practicality due to a limit in data transmit rate, and a high-speed network such as an Asymmetric Digital Subscriber Line (ADSL) and a Local Area Network (LAN) has a problem that much time is required for an environment where a network line is connected to household to TVs. There is also a problem that it is very difficult for a user to directly set up a network since the network setup is very complicated.
  • a technology where a digital TV receiving device and a mobile terminal are provided to an interface block for communicating them with each other, and a user authentication is performed through a user recognizing block in the mobile terminal is recently proposed.
  • FIG. 1 which is a diagram showing a two-way data broadcasting service providing method using a conventional mobile terminal and a digital TV receiving device, shows a technology providing a data broadcasting service by integrating a wireless network transmitting/receiving technology through the mobile terminal and a digital TV receiving technology.
  • the drawing shows a broadcasting station 100, a broadcasting transmitting device 102, a digital TV receiving device 104, a mobile terminal 106, a mobile telecommunication network 108 and a base station 110.
  • the representative mobile terminal 106 i.e., Personal Communication System (PCS), includes a Personal Computer (PC) connecting block in consideration of being connected to a PC or a laptop computer.
  • PCS Personal Communication System
  • the digital TV receiving device 104 includes the connecting block and has an interface with the mobile terminal 106, the two devices 104 and 106 can communicate each other.
  • General data published in a data broadcasting service can receive massive data through broadcasting signals a high bandwidth for a short time.
  • the data include information on a position to transmit and receive response data by using the mobile terminal 106.
  • E-commerce will be described hereinafter as an example.
  • a user receives a detailed catalog of a product through a high bandwidth and one-to-multi transmission.
  • a product code is transmitted to the mobile terminal 106 through the connecting block included in the digital TV receiving device 104, and transmitted again to the broadcasting station 100 through the mobile telecommunication network 108 and the base station 110.
  • the user is connected to a provider of the product, and the product is delivered to the user.
  • the mobile terminal and the digital TV receiving device exist as an independent entity, there is a problem that an interconnection is always required for using, and since a message and data between a broadcasting system and a telecommunication system are separately processed, there is also problem that a data transforming process is mutually required. Also, there is a difficulty for using since the user should have both digital TV receiving device and the mobile terminal to receive the two-way service in case of using the mobile terminal or in a mobile environment.
  • DMB Digital Multimedia broadcasting
  • mobile telecommunication integrated service terminal for connecting a DMB network and a mobile telecommunication network, which can simultaneously provide a DMB broadcasting service in a mobile environment and a two- way data service through a mobile telecommunication network by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting them as one entity.
  • a Digital Multimedia broadcasting (DMB)/mobile telecommunication integrated service terminal for connecting a DMB network and a mobile telecommunication network, including: a DMB broadcasting processing block for extracting video/audio and synchronized data, transmitting the video/audio to corresponding application program for restoration, and transmitting the DMB data to a DMB/mobile telecommunication network connecting block, but generating network linkage data by integrating mobile data with the DMB data in case that the mobile data are transmitted from a mobile telecommunication accessing block; a DMB/mobile telecommunication network connecting block for controlling the DMB broadcasting processing block, an application program or a mobile telecommunication accessing block to receive a DMB broadcasting or provide a mobile telecommunication service, requesting additional mobile data to a return channel server through the mobile telecommunication accessing block upon a user request during DMB broadcasting reception, and processing the network linkage data generated in the DMB broadcasting processing block; and the mobile telecommunication accessing block for performing
  • a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service method for connecting between a DMB network and a mobile telecommunication network, including the steps of: a) checking a kind of an application program requested to be executed by a user; b) providing a DMB broadcasting- related service by calling a DMB application program- related high-level Application Program Interface (API) and then calling a DMB terminal-related low-level API if the application program is for a DMB broadcasting in the check result of the step a); c) providing a mobile telecommunication-related service by calling a mobile telecommunication application program-related high-level API and then calling a mobile telecommunication terminal- related low-level API if the application program is for a mobile telecommunication in the check result of the step a) ; and d) providing the service by calling a DMB/mobile telecommunication linkage application program-related API, calling one of a DMB terminal-related low-level
  • DMB Digital Multimedia broadcasting
  • the present invention can receive data broadcasting contents, which is transmitted through a Digital Multimedia broadcasting (DMB) broadcasting network, and request detailed data through a mobile telecommunication network. That is, the present invention can provide a DMB broadcasting service in a mobile environment and a two- way data service through a mobile telecommunication network simultaneously by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting the terminals into one entity. Also, the present invention can integrate a broadcasting service and a mobile telecommunication service by defining an integrated platform and API which can simultaneously connect DMB broadcasting and a mobile telecommunication network.
  • DMB Digital Multimedia broadcasting
  • the present invention can make a two-way data service of a DMB network and a mobile telecommunication network easier by using an easy authentication and a payment process of a mobile telecommunication terminal, and enables diverse applications in a data broadcasting service field of a limited mobile environment.
  • the present invention can generate DMB/mobile telecommunication network linkage data by integrating DMB broadcasting data or synchronized data with mobile data transmitted from a mobile telecommunication service server i.e., a return channel server, and increase data process efficiency by processing the generated DMB/mobile telecommunication network linkage data in a low-level API.
  • Fig. 1 is a diagram showing a two-way data broadcasting service providing method using a conventional mobile terminal and a digital TV receiving device
  • Fig. 2 is a block diagram showing a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service terminal for a network linkage between DMB and a mobile telecommunication in accordance with an embodiment of the present invention
  • Fig. 3 is a block diagram showing a network linkage protocol between DMB and a mobile telecommunication in accordance with an embodiment of the present invention
  • Fig. 3 is a block diagram showing a network linkage protocol between DMB and a mobile telecommunication in accordance with an embodiment of the present invention
  • Fig. 4 is a block diagram showing a network linkage platform between DMB and a mobile telecommunication of Fig. 2 in accordance with an embodiment of the present invention
  • Fig. 5 is a flowchart showing a DMB/mobile telecommunication integrated service method in a DMB/mobile telecommunication integrated service terminal in accordance with an embodiment of the present invention
  • Fig. 6 is a block diagram showing a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network in accordance with an embodiment of the present invention
  • Fig. 7 is a block diagram illustrating a DMB/mobile telecommunication network linkage platform based on a Wireless Internet Platform FOR Interoperability platform (WIPI) in accordance with an embodiment of the present invention.
  • WIPI Wireless Internet Platform FOR Interoperability platform
  • Fig. 2 is a block diagram showing a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service terminal for a network linkage between DMB and a mobile telecommunication in accordance with an embodiment of the present invention.
  • the DMB/mobile telecommunication integrated service terminal of the present invention includes a DMB broadcasting processing block 210, a mobile telecommunication network accessing block 240, a DMB/mobile telecommunication network linkage platform 220, and an application program 230.
  • the DMB broadcasting processing block 210 receives a DMB broadcasting signal 210 and decodes a multimedia signal and data.
  • the mobile telecommunication network accessing block 240 is for accessing a mobile telecommunication network as well as a wireless internet.
  • the DMB/mobile telecommunication network linkage platform 220 is for connecting a DMB network and a mobile telecommunication network.
  • the DMB broadcasting processing block 210 will be described hereinafter.
  • the DMB broadcasting processing block 210 separately extracts a video/audio, synchronized data, service information (SI), and asynchronous data, transmits the video/audio to the application program for restoration, and transmits the synchronized data and the SI to the DMB/mobile telecommunication network linkage platform 220.
  • the DMB broadcasting processing block 210 generates network linkage data by integrating the asynchronous data with the synchronized data and the mobile data received from the mobile telecommunication network accessing block 240.
  • the asynchronous data are transmitted through a channel, which is different from a multimedia stream, and can be restored independently from the video/audio, such as stock information and weather forecast.
  • synchronized data are restored by being connected with a specific scene and a frame of audio/video, and include information of a player being at a batting area during a baseball game, explanation on a place which is a background in a specific scene of a drama, a past game scene or an interview scene which can be provided as a moving picture in an appearance scene of a specific player during a sports game.
  • the DMB data include asynchronous data and synchronized data described above.
  • the DMB broadcasting processing block 210 includes a DMB broadcasting pre-processor 211, a multimedia processor 212, and a data processor 213, and each function will be described as follows.
  • the DMB broadcasting pre-processor 211 divides a service information (SI) and main data by receiving a DMB broadcasting Radio Frequency (RF) signal, demodulating the signal as an Intermediate Frequency (IF) signal, and decoding a channel.
  • SI service information
  • RF Radio Frequency
  • the DMB broadcasting pre-processor 211 separates a multimedia stream, e.g., a video/audio and synchronized data, and asynchronous data from main data loaded through a main data channel by using divided SI.
  • the multimedia processor 212 decodes a multimedia stream, divides the decoded multimedia stream into video, audio and synchronized data, transmits the synchronized data to the DMB/mobile telecommunication network linkage platform 220 and video/audio to the application program 230.
  • the data processor 213 decodes asynchronous data, divides the decoded data into a file and IP data form, and processes mobile data, which are mobile telecommunication data, received from the mobile telecommunication network accessing block 240.
  • the data processor 213 generates network linkage data by- integrating the asynchronous data, which are divided from the DMB broadcasting pre-processor 211, with mobile data received from the mobile telecommunication network accessing block 240, which are data transmitted from a return channel server, i.e., a mobile telecommunication service server through a return channel, which is for connecting between DMB broadcasting and a mobile telecommunication network.
  • the mobile telecommunication network accessing block 240 will be described as follows.
  • the mobile telecommunication network accessing block 240 processes a mobile telecommunication network access request of the DMB/mobile telecommunication network linkage platform 220 for performing interaction between the mobile telecommunication network server 108 and the DMB/mobile telecommunication integrated service terminal shown in Fig.
  • FIG. 2 has the DMB/mobile telecommunication integrated service terminal shown in Fig. 2 accesses to a mobile telecommunication network, and transmits mobile data transmitted from the return channel server, which is a mobile telecommunication service server, through a return channel, to the DMB/mobile telecommunication network linkage platform 220 or the data processor 213.
  • the return channel server which is a mobile telecommunication service server
  • the data processor 213 As shown in Fig.
  • mobile data displayed between the mobile telecommunication network accessing block 240 and the DMB/mobile telecommunication network linkage platform 220 include data such as a mobile telecommunication network access request and a detailed information request that the DMB/mobile telecommunication network linkage platform 220 transmits to the mobile telecommunication network accessing block 240 according to a user request, and data transmitted from a return channel server, i.e., a mobile telecommunication service server, through a mobile telecommunication network and the mobile telecommunication network accessing block 240, and the data can be called as mobile data since they are transmitted to or from the mobile telecommunication network accessing block 240, i.e., they are related to a mobile telecommunication.
  • a return channel server i.e., a mobile telecommunication service server
  • mobile data between the mobile telecommunication network accessing block 240 and the data processor 213 can be called as mobile data since they are transmitted from a return channel server, which is a mobile telecommunication service server, through a return channel, but they are also transmitted from the mobile telecommunication network accessing block 240.
  • the DMB/mobile telecommunication network linkage platform 220 controls the DMB broadcasting processing block 210, the mobile telecommunication network accessing block 240, and the application program 230, and performs a practical role for a logical linkage between a broadcasting network and a mobile telecommunication network.
  • the DMB/mobile telecommunication network linkage platform 220 can be formed by referring to a middleware which is used in a broadcasting or a mobile telecommunication terminal, performs a linkage function among the application program 230, the DMB broadcasting processing block 210, and the mobile telecommunication network accessing block 240, and has application programs, which are provided to a user as a service, performed without any connection with terminal or broadcasting/mobile telecommunication media.
  • the DMB/mobile telecommunication network linkage platform 220 should be standardized to include diverse broadcasting telecommunication contents and application program developers.
  • the application program 230 basically includes an audio/video player for audio/video-centered DMB broadcasting, a browser for processing data transmitted to a DMB and mobile telecommunication channel, and unique mobile contents which can be provided as a service in a mobile terminal through a mobile telecommunication network.
  • a mobile application program such as an address book and a game, and Application Program Interface (API) by using a wireless internet provided in a mobile telecommunication environment.
  • API Application Program Interface
  • Fig. 3 is a block diagram showing a network linkage protocol between DMB and a mobile telecommunication in accordance with an embodiment of the present invention.
  • the broadcasting processing block 210 includes a DMB broadcasting pre-processor 211, a multimedia processor 212, and a data processor 213, and each of them will be described as follows.
  • the multimedia processor 212 processes multimedia data, and includes a forward error correction 300, an MPEG-2 Transport Stream (TS) 301, MPEG-4 Synchronization Layer (SL) 302, and an MPEG-4 Advanced Video Coding (AVC)/Bit Sliced Arithmetic Coding (BSAC)/Binary Format for Scene (BIFS) 303.
  • the data processor 213 processes DMB broadcasting data and includes a packet mode 310, a packet mode 311 in MSC Data Groups, Multimedia Object Transfer (MOT) 312, an Internet Protocol (IP) 313, and Transmission Control Protocol (TCP)/User Datagram Protocol (UDP) 314 and 315.
  • a protocol used in the mobile telecommunication network accessing block 240 includes a protocol used to form a channel for one-way or two-way interaction with a service of a Feed Back Channel (FBC) for an individual, and performs a session control signaling for controlling a data flow between a broadcasting channel for session setup of two-way interaction and an interaction channel.
  • FBC Feed Back Channel
  • a Point-to-Point Protocol 321 can be used to set up data link in the mobile telecommunication network accessing block 240, and a TCP 323 or a UDP 324 can be used for a transmission protocol.
  • DMB/mobile telecommunication network linkage API includes APIs for realizing the DMB/mobile telecommunication network linkage platform 220 of Fig. 2, and basic API used in broadcasting and a mobile telecommunication terminal, and an extended API to add for linkage between two systems, and it will be required to be able to extend according to a request of contents providers, service providers and terminal manufacturers.
  • the basic API and the extended API are classified into high-level API and low-level API.
  • a low-level API 430 is a layer for supporting hardware independence in porting of a DMB/mobile telecommunication network linkage platform and an application program. It allows abstraction of a terminal and an independent formation of a platform in hardware. That is, the API is used for easy porting of the DMB/mobile telecommunication network linkage platform and the application program to a unique operating system of a terminal.
  • a DMB terminal-related API 431 is low- level API for porting to hardware related to DMB reception
  • a mobile telecommunication terminal- related API 432 is low-level API for porting to hardware related to mobile telecommunication access.
  • a platform engine 420 which is a linkage engine, is a library providing an environment where high-level APIs 410 can be operated, and high-level APIs 410 have an application program developer independently develop an application program and provide an environment where diverse application programs can be independently executed to terminal and a service.
  • the high-level API 410 includes a DMB application program-related API 411, which is a conventional API used in a DMB broadcasting and a mobile telecommunication terminal, a mobile telecommunication application program-related API 413, and a DMB/mobile telecommunication application program- related API 412 for an application program that can be executed by simultaneously using a DMB broadcasting and a mobile telecommunication service.
  • An application program/API managing block 400 manages, download, addition, an update, and a delete of the application program-related APIs as well as an application program.
  • Fig. 5 is a flowchart showing a DMB/mobile telecommunication integrated service method in a DMB/mobile telecommunication integrated service terminal in accordance with an embodiment of the present invention.
  • Each of APIs is called according to a kind of an application program, i.e., whether the application program is for a DMB broadcasting, a mobile telecommunication, or a linkage application program. Therefore, if execution of a specific program is requested by a user at step S501, a kind of the specific program is checked at step S502. In a check result of the kind of the application program, if the called application program is only for a DMB broadcasting such as an AV player, high-level API, which is a DMB application program-related API, is called at step S503, and a DMB broadcasting-related service is provided with a call of a DMB terminal-related low-level API at step S505.
  • a kind of an application program i.e., whether the application program is for a DMB broadcasting, a mobile telecommunication, or a linkage application program. Therefore, if execution of a specific program is requested by a user at step S501, a kind of the specific program is checked at step S50
  • the called application program is only for a mobile telecommunication, high-level API, which is a mobile telecommunication application program-related API, is called at step S510, and a mobile telecommunication- related service is provided with a call of a mobile telecommunication terminal-related low-level API at step S511.
  • the called application program is a DMB/mobile telecommunication linkage application program, e.g., a data browser will be described hereinafter.
  • a user in a DMB/mobile telecommunication linkage service, after contents for broadcasting are received by using DMB, a user can receive a service on detailed data of personal data of broadcasted contents, if necessary while a user watches video, listens to audio, and browses data by using billing of a mobile telecommunication. Therefore, if the DMB/mobile telecommunication linkage application program is executed, the DMB/mobile telecommunication linkage application program-related API is called at step S506, and the DMB terminal-related low- level API is called at step S507. A DMB broadcasting- related service is provided at step S508.
  • a mobile telecommunication terminal-related low-level API is called and a mobile telecommunication- related service is provided at steps S511 and S512.
  • the mobile telecommunication service is provided in the DMB/mobile telecommunication linkage service, subsequently, the DMB broadcasting-related service is provided according to a request of a user. That is, in the check result of a kind of the application program, if the application program is a DMB/mobile telecommunication linkage application program, DMB/mobile telecommunication linkage application program-related API is called, and mobile telecommunication terminal-related low-level API is called.
  • FIG. 6 is a block diagram showing a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network in accordance with an embodiment of the present invention.
  • the multimedia processor 212 decodes a multimedia stream which is demodulated and demultiplexed in the DMB broadcasting pre-processor 211 and separates the multimedia stream into video/audio and synchronized data, which require synchronization, thereby outputting the video/audio through a terminal screen and a speaker by an AV player 631 going through a memory, and outputting synchronized data to the DMB/mobile telecommunication network linkage platform 220.
  • the data processor 213 decodes synchronized data outputted in the DMB broadcasting pre-processor 211, i.e., data which do not require video/audio and synchronization, and generates network linkage data in a form of file data by integrating mobile data transmitted from a return server through the mobile telecommunication network accessing block 240.
  • a low-level API 430 includes API functions performing a function of a channel setup and change 601, a data event generation 602, a data reading 603, a mobile telecommunication network access 604, and a data request 605.
  • a channel setup and change function tunes a broadcasting frequency based on service information (SI) by acquiring SI request of a high-level API function, and selects a sub-channel of a specific service.
  • SI service information
  • An audio/video of a selected service directly goes through a memory and is outputted to a screen and a speaker through the application program 230, but a decoded data file is read by a data reading function of low-level API. If a service is selected and broadcasting data are received after completing channel setup and change, a data event generating function generates an event that reception of the broadcasting data is started, and notifies it to high-level API of it. If the reception of the broadcasting data is completed and the data are restored in a form of a file required in an application program such as a data browser 632, completion of broadcasting data reception is noticed to high-level API by an event.
  • a mobile telecommunication accessing function performs a function accessing to a return channel, which is a mobile telecommunication service server, through a mobile telecommunication network.
  • a data request function transmits a data request to a return channel server, which is a mobile telecommunication service server, existing on a mobile telecommunication network, receives response data, which are mobile data, and notices an event to high-level API.
  • the high-level API 410 includes a broadcasting- related service control package 621, an AV control package 622, a locator package 623, a data file control package 624, and a mobile telecommunication network control package 625.
  • the broadcasting-related service control package 621 can change a broadcasting channel and a sub-channel, and provides a function related to services such as broadcasting program guide, service change and search, and interfaces.
  • the AV control package 622 restores a DMB audio/video and controls a restoring position and the size of the audio/video.
  • the data file control package 624 provides a control function of a data file received through broadcasting or a return channel. That is, the data file control package 624 is provided to process a data file transmitted through a mobile telecommunication network or DMB broadcasting as a shape connected in a DMB/mobile telecommunication network linkage platform.
  • the locator package 623 provides a logical method for designating a resource, which is a service or a file, in the DMB/mobile telecommunication network linkage platform.
  • the designation of the resource hides details, and provides a package for consistently designating a resource in other parts of the DMB/mobile telecommunication network linkage platform.
  • the mobile telecommunication network control package 625 includes a package for providing diverse wireless internet service after accessing to a mobile telecommunication network.
  • data file formation in a mobile telecommunication terminal is performed in high-level API, but in the present invention, data file for DMB/mobile telecommunication network linkage, i.e., DMB/mobile telecommunication network linkage data file is generated in the data processor 213, and the generated DMB/mobile telecommunication network linkage data file, is processes by a low-level API 430. Since data to be transmitted to a mobile telecommunication network are transmitted through a TCP connection, a possibility to be segmented is very low. However, since data transmitted through a DMB broadcasting are transmitted after being segmented and repeated, efficiency of a system can be improved only in case that a process of a decoding and a file composition is performed in a low-level.
  • the data browser 632 which is a kind of the application program 230, generates a control command by a user control, reads the file when necessary by using parameter information transmitted when file receiving completion event of the service is generated, and displays the file on a screen with audio/video (AV) broadcasting.
  • AV audio/video
  • a DMB/mobile telecommunication network linkage platform 700 includes a DMB extension HAL 701, a WIPI HAL 702, a DMB-WIPI extension platform 703.
  • the DMB extension HAL 701 and the WIPI HAL 702 conform to a low-level API
  • the DMB-WIPI extension platform 703 includes a high-level API such as WIPI-DMB extension API, and a platform engine.
  • the DMB/mobile telecommunication network linkage platform 700 provides a DMB reception and a mobile telecommunication access function to an integration browser, which is an application program.
  • the functions are connected through the WIPI-DMB extension API, and basic API, which is related to execution of an application program, use an API of a conventional WIPI, and API, which is extended to meet a DMB environment, is used in a DMB broadcasting-related reception/control function and execution of the application program.
  • the integration browser provides DMB A/V contents and data broadcasting contents through API provided in the DMB/mobile telecommunication network linkage platform 700, and supports a user input for a two-way service.
  • the integration browser is realized by using the WIPI-DMB extension API provided in the DMB/mobile telecommunication network linkage platform 700, and a standardized and independent execution environment for terminal is secured.
  • DMB reception and a mobile telecommunication access function are provided to a high- level layer through Hardware Adaptation Layers 701 and 702.
  • the mobile telecommunication access function follows a WIPI HAL standard, and a DMB reception function is added through the DMB extension HAL.
  • the DMB extension HAL 701 includes only basic and necessary API with respect to DMB broadcasting reception and A/V/data stream control. It is for realizing the high-level WIPI-DMB extension HAL independently from the hardware under assumption that an A/V process is performed based on hardware.
  • the DMB-WIPI extension platform 703 provides an environment and API that a high-level integration browser and an application directly use based on the DMB extension HAL 701 and the WIPI HAL 702.
  • the present invention can be embodied as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, a floppy disk, a hard disk and a magneto-optical disk. While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Abstract

Provided is a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network, which can provide a DMB broadcasting service in a mobile environment and a two-way data service through a mobile telecommunication network simultaneously by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting them into one entity. The DMB/mobile telecommunication integrated service terminal for connecting a network between DMB and a mobile telecommunication includes a DMB broadcasting processing block for extracting video/audio and synchronized data, transmitting the video/audio to corresponding application program for restoration, and transmitting the DMB data to a DMB/mobile telecommunication network connecting block, but generating network linkage data by integrating mobile data with the DMB data in case that the mobile data are transmitted from a mobile telecommunication accessing block; a DMB/mobile telecommunication network connecting block for controlling the DMB broadcasting processing block, an application program or a mobile telecommunication accessing block to receive a DMB broadcasting or provide a mobile telecommunication service, requesting additional mobile data to a return channel server through the mobile telecommunication accessing block upon a user request during DMB broadcasting reception, and processing the network linkage data generated in the DMB broadcasting processing block; and the mobile telecommunication accessing block for performing a mobile telecommunication network accessing process receiving the mobile data from the return channel server, and transmitting the mobile data to the DMB broadcasting processing block or the DMB/mobile telecommunication network connecting block under control of the DMB/mobile telecommunication network connecting block. The DMB/mobile telecommunication integrated service terminal is applied to a DMB/mobile telecommunication integrated service.

Description

DMB/MOBILE TELECOMMUNICATION INTEGRATED SERVICE TERMINAL APPARATUS AND METHOD FOR NETWORK LINKAGE BETWEEN DMB AND MOBILE TELECOMMUNICATION Description Technical Field
The present invention relates to a Digital Multimedia broadcasting (DMB)/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network, ; and, more particularly, to a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network, which can provide a DMB broadcasting service in a mobile environment and a two-way data service through a mobile telecommunication network simultaneously by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting them into one entity, and a method thereof.
Background Art
If diverse broadcasting technologies are used in a digital television (TV) which comes into the spotlight as a next generation TV technology, it is possible to provide diverse services, which can be provided in a conventional Personal Computer (PC), such as World Wide Web (WWW) service and e-commerce. However, since data broadcasting has a limit in a broadcasting characteristic that only one-way transmission is possible, a method for setting up a modem or a network device in a digital TV is proposed to overcome the limit and to make the two-way telecommunication possible. However, a modem has a low practicality due to a limit in data transmit rate, and a high-speed network such as an Asymmetric Digital Subscriber Line (ADSL) and a Local Area Network (LAN) has a problem that much time is required for an environment where a network line is connected to household to TVs. There is also a problem that it is very difficult for a user to directly set up a network since the network setup is very complicated. To solve the problems above, a technology where a digital TV receiving device and a mobile terminal are provided to an interface block for communicating them with each other, and a user authentication is performed through a user recognizing block in the mobile terminal is recently proposed. Fig. 1, which is a diagram showing a two-way data broadcasting service providing method using a conventional mobile terminal and a digital TV receiving device, shows a technology providing a data broadcasting service by integrating a wireless network transmitting/receiving technology through the mobile terminal and a digital TV receiving technology. The drawing shows a broadcasting station 100, a broadcasting transmitting device 102, a digital TV receiving device 104, a mobile terminal 106, a mobile telecommunication network 108 and a base station 110. The representative mobile terminal 106, i.e., Personal Communication System (PCS), includes a Personal Computer (PC) connecting block in consideration of being connected to a PC or a laptop computer. Therefore, if the digital TV receiving device 104 includes the connecting block and has an interface with the mobile terminal 106, the two devices 104 and 106 can communicate each other. General data published in a data broadcasting service can receive massive data through broadcasting signals a high bandwidth for a short time. The data include information on a position to transmit and receive response data by using the mobile terminal 106. E-commerce will be described hereinafter as an example. A user receives a detailed catalog of a product through a high bandwidth and one-to-multi transmission. Also, if the user selects a product to be purchased, a product code is transmitted to the mobile terminal 106 through the connecting block included in the digital TV receiving device 104, and transmitted again to the broadcasting station 100 through the mobile telecommunication network 108 and the base station 110. In the broadcasting station 100, the user is connected to a provider of the product, and the product is delivered to the user. In the two-way data broadcasting service using the above mobile terminal, since the mobile terminal and the digital TV receiving device exist as an independent entity, there is a problem that an interconnection is always required for using, and since a message and data between a broadcasting system and a telecommunication system are separately processed, there is also problem that a data transforming process is mutually required. Also, there is a difficulty for using since the user should have both digital TV receiving device and the mobile terminal to receive the two-way service in case of using the mobile terminal or in a mobile environment.
Disclosure Technical Problem
It is, therefore, an object of the present invention to provide a Digital Multimedia broadcasting (DMB)/mobile telecommunication integrated service terminal for connecting a DMB network and a mobile telecommunication network, which can simultaneously provide a DMB broadcasting service in a mobile environment and a two- way data service through a mobile telecommunication network by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting them as one entity. Other objects and advantages of the invention will be understood by the following description and become more apparent from the embodiments in accordance with the present invention, which is set forth hereinafter. It will be also apparent that objects and aspects of the invention can be embodied easily by the means defined in the claims.
Technical Solution
In accordance with one aspect of the present invention, there is provided a Digital Multimedia broadcasting (DMB)/mobile telecommunication integrated service terminal for connecting a DMB network and a mobile telecommunication network, including: a DMB broadcasting processing block for extracting video/audio and synchronized data, transmitting the video/audio to corresponding application program for restoration, and transmitting the DMB data to a DMB/mobile telecommunication network connecting block, but generating network linkage data by integrating mobile data with the DMB data in case that the mobile data are transmitted from a mobile telecommunication accessing block; a DMB/mobile telecommunication network connecting block for controlling the DMB broadcasting processing block, an application program or a mobile telecommunication accessing block to receive a DMB broadcasting or provide a mobile telecommunication service, requesting additional mobile data to a return channel server through the mobile telecommunication accessing block upon a user request during DMB broadcasting reception, and processing the network linkage data generated in the DMB broadcasting processing block; and the mobile telecommunication accessing block for performing a mobile telecommunication network accessing process receiving the mobile data from the return channel server, and transmitting the mobile data to the DMB broadcasting processing block or the DMB/mobile telecommunication network connecting block under control of the DMB/mobile telecommunication network connecting block. In accordance with another aspect of the present invention, there is provided a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service method for connecting between a DMB network and a mobile telecommunication network, including the steps of: a) checking a kind of an application program requested to be executed by a user; b) providing a DMB broadcasting- related service by calling a DMB application program- related high-level Application Program Interface (API) and then calling a DMB terminal-related low-level API if the application program is for a DMB broadcasting in the check result of the step a); c) providing a mobile telecommunication-related service by calling a mobile telecommunication application program-related high-level API and then calling a mobile telecommunication terminal- related low-level API if the application program is for a mobile telecommunication in the check result of the step a) ; and d) providing the service by calling a DMB/mobile telecommunication linkage application program-related API, calling one of a DMB terminal-related low-level API and a mobile telecommunication terminal related low-level API, and calling other services-related low-level API upon a user request if the application program is for a DMB/mobile telecommunication linkage application program in the check result of the step a).
Advantageous Effects
The present invention can receive data broadcasting contents, which is transmitted through a Digital Multimedia broadcasting (DMB) broadcasting network, and request detailed data through a mobile telecommunication network. That is, the present invention can provide a DMB broadcasting service in a mobile environment and a two- way data service through a mobile telecommunication network simultaneously by integrating a mobile telecommunication terminal and a mobile DMB receiving terminal and physically/logically connecting the terminals into one entity. Also, the present invention can integrate a broadcasting service and a mobile telecommunication service by defining an integrated platform and API which can simultaneously connect DMB broadcasting and a mobile telecommunication network. Also, the present invention can make a two-way data service of a DMB network and a mobile telecommunication network easier by using an easy authentication and a payment process of a mobile telecommunication terminal, and enables diverse applications in a data broadcasting service field of a limited mobile environment. Also, the present invention can generate DMB/mobile telecommunication network linkage data by integrating DMB broadcasting data or synchronized data with mobile data transmitted from a mobile telecommunication service server i.e., a return channel server, and increase data process efficiency by processing the generated DMB/mobile telecommunication network linkage data in a low-level API. Description of Drawings
The above and other objects and features of the present invention will become apparent from the following description of the preferred embodiments given in conjunction with the accompanying drawings, in which: Fig. 1 is a diagram showing a two-way data broadcasting service providing method using a conventional mobile terminal and a digital TV receiving device; Fig. 2 is a block diagram showing a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service terminal for a network linkage between DMB and a mobile telecommunication in accordance with an embodiment of the present invention; Fig. 3 is a block diagram showing a network linkage protocol between DMB and a mobile telecommunication in accordance with an embodiment of the present invention; Fig. 4 is a block diagram showing a network linkage platform between DMB and a mobile telecommunication of Fig. 2 in accordance with an embodiment of the present invention; Fig. 5 is a flowchart showing a DMB/mobile telecommunication integrated service method in a DMB/mobile telecommunication integrated service terminal in accordance with an embodiment of the present invention; Fig. 6 is a block diagram showing a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network in accordance with an embodiment of the present invention; and Fig. 7 is a block diagram illustrating a DMB/mobile telecommunication network linkage platform based on a Wireless Internet Platform FOR Interoperability platform (WIPI) in accordance with an embodiment of the present invention.
Best Mode for the Invention
Other objects and aspects of the invention will become apparent from the following description of the embodiments with reference to the accompanying drawings, which is set forth hereinafter. Fig. 2 is a block diagram showing a Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service terminal for a network linkage between DMB and a mobile telecommunication in accordance with an embodiment of the present invention. As shown in Fig. 2, the DMB/mobile telecommunication integrated service terminal of the present invention includes a DMB broadcasting processing block 210, a mobile telecommunication network accessing block 240, a DMB/mobile telecommunication network linkage platform 220, and an application program 230. The DMB broadcasting processing block 210 receives a DMB broadcasting signal 210 and decodes a multimedia signal and data. The mobile telecommunication network accessing block 240 is for accessing a mobile telecommunication network as well as a wireless internet. The DMB/mobile telecommunication network linkage platform 220 is for connecting a DMB network and a mobile telecommunication network. The DMB broadcasting processing block 210 will be described hereinafter. The DMB broadcasting processing block 210 separately extracts a video/audio, synchronized data, service information (SI), and asynchronous data, transmits the video/audio to the application program for restoration, and transmits the synchronized data and the SI to the DMB/mobile telecommunication network linkage platform 220. Also, the DMB broadcasting processing block 210 generates network linkage data by integrating the asynchronous data with the synchronized data and the mobile data received from the mobile telecommunication network accessing block 240. Herein, the asynchronous data are transmitted through a channel, which is different from a multimedia stream, and can be restored independently from the video/audio, such as stock information and weather forecast. Meanwhile, synchronized data are restored by being connected with a specific scene and a frame of audio/video, and include information of a player being at a batting area during a baseball game, explanation on a place which is a background in a specific scene of a drama, a past game scene or an interview scene which can be provided as a moving picture in an appearance scene of a specific player during a sports game. The DMB data include asynchronous data and synchronized data described above. As shown in Fig. 2, the DMB broadcasting processing block 210 includes a DMB broadcasting pre-processor 211, a multimedia processor 212, and a data processor 213, and each function will be described as follows. The DMB broadcasting pre-processor 211 divides a service information (SI) and main data by receiving a DMB broadcasting Radio Frequency (RF) signal, demodulating the signal as an Intermediate Frequency (IF) signal, and decoding a channel. Subsequently, the DMB broadcasting pre-processor 211 separates a multimedia stream, e.g., a video/audio and synchronized data, and asynchronous data from main data loaded through a main data channel by using divided SI. Subsequently, the multimedia processor 212 decodes a multimedia stream, divides the decoded multimedia stream into video, audio and synchronized data, transmits the synchronized data to the DMB/mobile telecommunication network linkage platform 220 and video/audio to the application program 230. Meanwhile, the data processor 213 decodes asynchronous data, divides the decoded data into a file and IP data form, and processes mobile data, which are mobile telecommunication data, received from the mobile telecommunication network accessing block 240. Also, the data processor 213 generates network linkage data by- integrating the asynchronous data, which are divided from the DMB broadcasting pre-processor 211, with mobile data received from the mobile telecommunication network accessing block 240, which are data transmitted from a return channel server, i.e., a mobile telecommunication service server through a return channel, which is for connecting between DMB broadcasting and a mobile telecommunication network. The mobile telecommunication network accessing block 240 will be described as follows. The mobile telecommunication network accessing block 240 processes a mobile telecommunication network access request of the DMB/mobile telecommunication network linkage platform 220 for performing interaction between the mobile telecommunication network server 108 and the DMB/mobile telecommunication integrated service terminal shown in Fig. 2, has the DMB/mobile telecommunication integrated service terminal shown in Fig. 2 accesses to a mobile telecommunication network, and transmits mobile data transmitted from the return channel server, which is a mobile telecommunication service server, through a return channel, to the DMB/mobile telecommunication network linkage platform 220 or the data processor 213. As shown in Fig. 2, mobile data displayed between the mobile telecommunication network accessing block 240 and the DMB/mobile telecommunication network linkage platform 220 include data such as a mobile telecommunication network access request and a detailed information request that the DMB/mobile telecommunication network linkage platform 220 transmits to the mobile telecommunication network accessing block 240 according to a user request, and data transmitted from a return channel server, i.e., a mobile telecommunication service server, through a mobile telecommunication network and the mobile telecommunication network accessing block 240, and the data can be called as mobile data since they are transmitted to or from the mobile telecommunication network accessing block 240, i.e., they are related to a mobile telecommunication. Meanwhile, mobile data between the mobile telecommunication network accessing block 240 and the data processor 213 can be called as mobile data since they are transmitted from a return channel server, which is a mobile telecommunication service server, through a return channel, but they are also transmitted from the mobile telecommunication network accessing block 240. The DMB/mobile telecommunication network linkage platform 220 controls the DMB broadcasting processing block 210, the mobile telecommunication network accessing block 240, and the application program 230, and performs a practical role for a logical linkage between a broadcasting network and a mobile telecommunication network. That is, the DMB/mobile telecommunication network linkage platform 220 can be formed by referring to a middleware which is used in a broadcasting or a mobile telecommunication terminal, performs a linkage function among the application program 230, the DMB broadcasting processing block 210, and the mobile telecommunication network accessing block 240, and has application programs, which are provided to a user as a service, performed without any connection with terminal or broadcasting/mobile telecommunication media. Also, the DMB/mobile telecommunication network linkage platform 220 should be standardized to include diverse broadcasting telecommunication contents and application program developers. The application program 230 basically includes an audio/video player for audio/video-centered DMB broadcasting, a browser for processing data transmitted to a DMB and mobile telecommunication channel, and unique mobile contents which can be provided as a service in a mobile terminal through a mobile telecommunication network. In a present mobile telecommunication service, it is possible to download a mobile application program such as an address book and a game, and Application Program Interface (API) by using a wireless internet provided in a mobile telecommunication environment. If a DMB/mobile telecommunication network integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network following the present invention are used, it will be also possible to download a mobile application program through relatively massive broadcasting networks after going through a user authentication procedure and an approval process in a mobile terminal system. Fig. 3 is a block diagram showing a network linkage protocol between DMB and a mobile telecommunication in accordance with an embodiment of the present invention. The broadcasting processing block 210 includes a DMB broadcasting pre-processor 211, a multimedia processor 212, and a data processor 213, and each of them will be described as follows. The multimedia processor 212 processes multimedia data, and includes a forward error correction 300, an MPEG-2 Transport Stream (TS) 301, MPEG-4 Synchronization Layer (SL) 302, and an MPEG-4 Advanced Video Coding (AVC)/Bit Sliced Arithmetic Coding (BSAC)/Binary Format for Scene (BIFS) 303. The data processor 213 processes DMB broadcasting data and includes a packet mode 310, a packet mode 311 in MSC Data Groups, Multimedia Object Transfer (MOT) 312, an Internet Protocol (IP) 313, and Transmission Control Protocol (TCP)/User Datagram Protocol (UDP) 314 and 315. Herein, the MOT 312 processes file data in a form of objector, and the TCP/UDP 314 and 315 process IP data to be transmitted to IP tunneling. Meanwhile, a protocol used in the mobile telecommunication network accessing block 240 includes a protocol used to form a channel for one-way or two-way interaction with a service of a Feed Back Channel (FBC) for an individual, and performs a session control signaling for controlling a data flow between a broadcasting channel for session setup of two-way interaction and an interaction channel. Also, a Point-to-Point Protocol 321 can be used to set up data link in the mobile telecommunication network accessing block 240, and a TCP 323 or a UDP 324 can be used for a transmission protocol. Also, a Short Message Service (SMS) protocol 325 for an SMS and a Code Division Multiple Access (CDMA), a Global System for Mobile telecommunication (GSM), International Mobile Telecommunication-2000 or a wireless network of a wireless LAN 320 for an upward and downward interaction channel can be used. DMB/mobile telecommunication network linkage API includes APIs for realizing the DMB/mobile telecommunication network linkage platform 220 of Fig. 2, and basic API used in broadcasting and a mobile telecommunication terminal, and an extended API to add for linkage between two systems, and it will be required to be able to extend according to a request of contents providers, service providers and terminal manufacturers. Herein, the basic API and the extended API are classified into high-level API and low-level API. Fig. 4 is a block diagram showing a network linkage platform between DMB and a mobile telecommunication of Fig. 2 in accordance with an embodiment of the present invention. A low-level API 430 is a layer for supporting hardware independence in porting of a DMB/mobile telecommunication network linkage platform and an application program. It allows abstraction of a terminal and an independent formation of a platform in hardware. That is, the API is used for easy porting of the DMB/mobile telecommunication network linkage platform and the application program to a unique operating system of a terminal. Herein, a DMB terminal-related API 431 is low- level API for porting to hardware related to DMB reception, and a mobile telecommunication terminal- related API 432 is low-level API for porting to hardware related to mobile telecommunication access. A platform engine 420, which is a linkage engine, is a library providing an environment where high-level APIs 410 can be operated, and high-level APIs 410 have an application program developer independently develop an application program and provide an environment where diverse application programs can be independently executed to terminal and a service. The high-level API 410 includes a DMB application program-related API 411, which is a conventional API used in a DMB broadcasting and a mobile telecommunication terminal, a mobile telecommunication application program-related API 413, and a DMB/mobile telecommunication application program- related API 412 for an application program that can be executed by simultaneously using a DMB broadcasting and a mobile telecommunication service. An application program/API managing block 400 manages, download, addition, an update, and a delete of the application program-related APIs as well as an application program. Fig. 5 is a flowchart showing a DMB/mobile telecommunication integrated service method in a DMB/mobile telecommunication integrated service terminal in accordance with an embodiment of the present invention. Each of APIs is called according to a kind of an application program, i.e., whether the application program is for a DMB broadcasting, a mobile telecommunication, or a linkage application program. Therefore, if execution of a specific program is requested by a user at step S501, a kind of the specific program is checked at step S502. In a check result of the kind of the application program, if the called application program is only for a DMB broadcasting such as an AV player, high-level API, which is a DMB application program-related API, is called at step S503, and a DMB broadcasting-related service is provided with a call of a DMB terminal-related low-level API at step S505. In a check result of the kind of the application program, if the called application program is only for a mobile telecommunication, high-level API, which is a mobile telecommunication application program-related API, is called at step S510, and a mobile telecommunication- related service is provided with a call of a mobile telecommunication terminal-related low-level API at step S511. A case that the called application program is a DMB/mobile telecommunication linkage application program, e.g., a data browser will be described hereinafter. Basically, in a DMB/mobile telecommunication linkage service, after contents for broadcasting are received by using DMB, a user can receive a service on detailed data of personal data of broadcasted contents, if necessary while a user watches video, listens to audio, and browses data by using billing of a mobile telecommunication. Therefore, if the DMB/mobile telecommunication linkage application program is executed, the DMB/mobile telecommunication linkage application program-related API is called at step S506, and the DMB terminal-related low- level API is called at step S507. A DMB broadcasting- related service is provided at step S508. If a mobile telecommunication network service is requested from a user during process of a DMB broadcasting-related service at step S509, a mobile telecommunication terminal-related low-level API is called and a mobile telecommunication- related service is provided at steps S511 and S512. According to a service, it is also possible that the mobile telecommunication service is provided in the DMB/mobile telecommunication linkage service, subsequently, the DMB broadcasting-related service is provided according to a request of a user. That is, in the check result of a kind of the application program, if the application program is a DMB/mobile telecommunication linkage application program, DMB/mobile telecommunication linkage application program-related API is called, and mobile telecommunication terminal-related low-level API is called. Accordingly a DMB broadcasting-related service is provided. Fig. 6 is a block diagram showing a DMB/mobile telecommunication integrated service terminal and a method for connecting a DMB network and a mobile telecommunication network in accordance with an embodiment of the present invention. The multimedia processor 212 decodes a multimedia stream which is demodulated and demultiplexed in the DMB broadcasting pre-processor 211 and separates the multimedia stream into video/audio and synchronized data, which require synchronization, thereby outputting the video/audio through a terminal screen and a speaker by an AV player 631 going through a memory, and outputting synchronized data to the DMB/mobile telecommunication network linkage platform 220. The data processor 213 decodes synchronized data outputted in the DMB broadcasting pre-processor 211, i.e., data which do not require video/audio and synchronization, and generates network linkage data in a form of file data by integrating mobile data transmitted from a return server through the mobile telecommunication network accessing block 240. A low-level API 430 includes API functions performing a function of a channel setup and change 601, a data event generation 602, a data reading 603, a mobile telecommunication network access 604, and a data request 605. Herein, a channel setup and change function tunes a broadcasting frequency based on service information (SI) by acquiring SI request of a high-level API function, and selects a sub-channel of a specific service. An audio/video of a selected service directly goes through a memory and is outputted to a screen and a speaker through the application program 230, but a decoded data file is read by a data reading function of low-level API. If a service is selected and broadcasting data are received after completing channel setup and change, a data event generating function generates an event that reception of the broadcasting data is started, and notifies it to high-level API of it. If the reception of the broadcasting data is completed and the data are restored in a form of a file required in an application program such as a data browser 632, completion of broadcasting data reception is noticed to high-level API by an event. A mobile telecommunication accessing function performs a function accessing to a return channel, which is a mobile telecommunication service server, through a mobile telecommunication network. A data request function transmits a data request to a return channel server, which is a mobile telecommunication service server, existing on a mobile telecommunication network, receives response data, which are mobile data, and notices an event to high-level API. The high-level API 410 includes a broadcasting- related service control package 621, an AV control package 622, a locator package 623, a data file control package 624, and a mobile telecommunication network control package 625. The broadcasting-related service control package 621 can change a broadcasting channel and a sub-channel, and provides a function related to services such as broadcasting program guide, service change and search, and interfaces. The AV control package 622 restores a DMB audio/video and controls a restoring position and the size of the audio/video. The data file control package 624 provides a control function of a data file received through broadcasting or a return channel. That is, the data file control package 624 is provided to process a data file transmitted through a mobile telecommunication network or DMB broadcasting as a shape connected in a DMB/mobile telecommunication network linkage platform. Contents of the data file can be seen in a same way regardless of a transmission route of a data file in an application program using the DMB/mobile telecommunication network linkage platform by using the data file control package 624, and a start and an end of the data file transmission can be noticed. The locator package 623 provides a logical method for designating a resource, which is a service or a file, in the DMB/mobile telecommunication network linkage platform. The designation of the resource hides details, and provides a package for consistently designating a resource in other parts of the DMB/mobile telecommunication network linkage platform. The mobile telecommunication network control package 625 includes a package for providing diverse wireless internet service after accessing to a mobile telecommunication network. Generally, data file formation in a mobile telecommunication terminal is performed in high-level API, but in the present invention, data file for DMB/mobile telecommunication network linkage, i.e., DMB/mobile telecommunication network linkage data file is generated in the data processor 213, and the generated DMB/mobile telecommunication network linkage data file, is processes by a low-level API 430. Since data to be transmitted to a mobile telecommunication network are transmitted through a TCP connection, a possibility to be segmented is very low. However, since data transmitted through a DMB broadcasting are transmitted after being segmented and repeated, efficiency of a system can be improved only in case that a process of a decoding and a file composition is performed in a low-level. Therefore, it is desirable to form a file object which is processed and connected in a low-level regardless of whether the data file for the DMB/mobile telecommunication network linkage application program, which is a DMB/mobile telecommunication network linkage data file, is transmitted to a DMB broadcasting or a mobile telecommunication network. The data browser 632, which is a kind of the application program 230, generates a control command by a user control, reads the file when necessary by using parameter information transmitted when file receiving completion event of the service is generated, and displays the file on a screen with audio/video (AV) broadcasting. Fig. 7 is a block diagram illustrating a DMB/mobile telecommunication network linkage platform based on a Wireless Internet Platform FOR Interoperability platform (WIPI) in accordance with an embodiment of the present invention. As shown in Fig. 7, a DMB/mobile telecommunication network linkage platform 700 includes a DMB extension HAL 701, a WIPI HAL 702, a DMB-WIPI extension platform 703. Herein, the DMB extension HAL 701 and the WIPI HAL 702 conform to a low-level API, and the DMB-WIPI extension platform 703 includes a high-level API such as WIPI-DMB extension API, and a platform engine. The DMB/mobile telecommunication network linkage platform 700 provides a DMB reception and a mobile telecommunication access function to an integration browser, which is an application program. The functions are connected through the WIPI-DMB extension API, and basic API, which is related to execution of an application program, use an API of a conventional WIPI, and API, which is extended to meet a DMB environment, is used in a DMB broadcasting-related reception/control function and execution of the application program. The integration browser provides DMB A/V contents and data broadcasting contents through API provided in the DMB/mobile telecommunication network linkage platform 700, and supports a user input for a two-way service. The integration browser is realized by using the WIPI-DMB extension API provided in the DMB/mobile telecommunication network linkage platform 700, and a standardized and independent execution environment for terminal is secured. As shown in Fig. 7, DMB reception and a mobile telecommunication access function are provided to a high- level layer through Hardware Adaptation Layers 701 and 702. The mobile telecommunication access function follows a WIPI HAL standard, and a DMB reception function is added through the DMB extension HAL. The DMB extension HAL 701 includes only basic and necessary API with respect to DMB broadcasting reception and A/V/data stream control. It is for realizing the high-level WIPI-DMB extension HAL independently from the hardware under assumption that an A/V process is performed based on hardware. The DMB-WIPI extension platform 703 provides an environment and API that a high-level integration browser and an application directly use based on the DMB extension HAL 701 and the WIPI HAL 702. As described in detail, the present invention can be embodied as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, a floppy disk, a hard disk and a magneto-optical disk. While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

What is claimed is:
1. A Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service terminal for connecting a DMB network and a mobile telecommunication network, comprising: a DMB broadcasting processing means for extracting video/audio and synchronized data, transmitting the video/audio to corresponding application program for restoration, and transmitting the DMB data to a DMB/mobile telecommunication network connecting means, but generating network linkage data by integrating mobile data with the DMB data in case that the mobile data are transmitted from a mobile telecommunication accessing means; a DMB/mobile telecommunication network connecting means for controlling the DMB broadcasting processing means, an application program or a mobile telecommunication accessing means to receive a DMB broadcasting or provide a mobile telecommunication service, requesting additional mobile data to a return channel server through the mobile telecommunication accessing means upon a user request during DMB broadcasting reception, and processing the network linkage data generated in the DMB broadcasting processing means; and the mobile telecommunication accessing means for performing a mobile telecommunication network accessing process receiving the mobile data from the return channel server, and transmitting the mobile data to the DMB broadcasting processing means or the DMB/mobile telecommunication network connecting means under control of the DMB/mobile telecommunication network connecting means.
2. The terminal as recited in claim 1, wherein the DMB broadcasting processing means includes: a DMB broadcasting pre-processing means for dividing a DMB broadcasting signal received through a broadcasting network into a multimedia stream, asynchronous data, and service information (SI) under control of the DMB/mobile telecommunication network connecting means; a multimedia processing means for decoding the multimedia stream obtained from the DMB broadcasting pre- processing means, dividing the decoded multimedia stream into video/audio and synchronized data, transmitting the video/audio to the application program for restoration, and transmitting the synchronized data to the data processing means or the DMB/mobile telecommunication network connecting means under control of the DMB/mobile telecommunication network connecting means; and a data processing means for generating network linkage data by combining asynchronous data, which are obtained from the DMB broadcasting pre-processing means, or synchronized data, which are obtained from the multimedia processing means, with the mobile data received from the mobile telecommunication network accessing means under control of the DMB/mobile telecommunication network connecting means.
3. The terminal as recited in one of claims 1 and 2, wherein the Digital Multimedia broadcasting (DMB)/mobile telecommunication network connecting means includes; a low-level API for supporting independency of terminal in a DMB/mobile telecommunication network linkage and porting of an application program; a high-level API for providing an environment where application programs can be independently executed in the terminal and a service; a linkage engine for providing an environment where the high-level API can be executed; and an application program/API managing means for managing download, addition, update, and deletion of the application program and the application program-related APIs.
4. The terminal as recited in claim 3, wherein the low-level API and the high-level API include a basic API for DMB broadcasting reception and an individual function of mobile telecommunication access, and an extension API for a DMB/mobile telecommunication linkage.
5. The terminal as recited in claim 3, wherein the low-level API includes a DMB terminal-related API that is connected to the DMB broadcasting receiving terminal, and a mobile telecommunication terminal-related API that is connected to a mobile telecommunication access-related terminal, and the high-level API includes a DMB application program-related API, a DMB/mobile telecommunication linkage application program-related API, and a mobile telecommunication application program- related API.
6. The terminal as recited in one of claims 1 and 2, wherein the basic API related to execution of an application program and an API for execution of a network access function/application program related to a mobile telecommunication use API of a conventional Wireless Internet Platform for Interoperability (WIPI); an API extended to fit to a DMB environment is used to execute a reception function/control function/application program related to DMB broadcasting in the DMB/mobile telecommunication network connecting means.
7. A Digital Multimedia broadcasting (DMB) /mobile telecommunication integrated service method for connecting between a DMB network and a mobile telecommunication network, comprising the steps of: a) checking a kind of an application program requested to be executed by a user; b) providing a DMB broadcasting-related service by- calling a DMB application program-related high-level Application Program Interface (API) and then calling a DMB terminal-related low-level API if the application program is for a DMB broadcasting in the check result of the step a) ; c) providing a mobile telecommunication-related service by calling a mobile telecommunication application program-related high-level API and then calling a mobile telecommunication terminal-related low-level API if the application program is for a mobile telecommunication in the check result of the step a); and d) providing the service by calling a DMB/mobile telecommunication linkage application program-related API, calling one of a DMB terminal-related low-level API and a mobile telecommunication terminal related low-level API, and calling other services-related low-level API upon a user request if the application program is for a DMB/mobile telecommunication linkage application program in the check result of the step a) .
8. The method as recited in claim 7, wherein the step d) includes the steps of: dl) calling a DMB/mobile telecommunication linkage application program-related API if the application program is for a DMB/mobile telecommunication linkage application program in the check result of the step a); d2 ) providing a DMB broadcasting-related service by calling a DMB terminal-related low-level API; and d3 ) providing a mobile telecommunication service by calling a mobile telecommunication terminal-related low- level API upon a user request for providing the DMB broadcasting-related service.
9. The method as recited in claim 7, wherein the step d) includes the steps of: d4) calling a DMB/mobile telecommunication linkage application program-related API if the application program is for a DMB/mobile telecommunication linkage application program in the check result of the step a); d5) providing a mobile telecommunication service by calling a mobile telecommunication terminal-related low- level API; and d6) providing a DMB broadcasting-related service by calling a DMB terminal-related low-level API during the mobile telecommunication service upon a user request.
EP05740847A 2004-06-29 2005-05-20 Dmb/mobile telecommunication integrated service terminal apparatus and method for network linkage between dmb and mobile telecommunication Withdrawn EP1774778A4 (en)

Applications Claiming Priority (3)

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KR20040049400 2004-06-29
KR1020050027365A KR100701004B1 (en) 2004-06-29 2005-03-31 DMB/Mobile Telecommunication Integated Service Terminal Apparatus and Method for network linkage between DMB and Mobile Telecommunication
PCT/KR2005/001482 WO2006001600A1 (en) 2004-06-29 2005-05-20 Dmb/mobile telecommunication integrated service terminal apparatus and method for network linkage between dmb and mobile telecommunication

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