KR100738925B1 - Method and system for application signaling for use in digital multimedia broadcasting - Google Patents

Abstract

An application signaling method in DMB(Digital Multimedia Broadcasting) data broadcasting and a system therefor are provided to manage a signaling message, an application, and a module for controlling the start, the end, and the stop of contents when transmitting contents of the DMB data broadcasting. A library module(210) interworks with a platform loaded in a mobile communication terminal to provide a data broadcasting service to the mobile communication terminal, and configures an application. An AIM(Application Information Message)(220) defines an attribute of the application including an ID, a version, and a format of the application, an executable receiver profile and version, dependence relation between applications, a configuration module of the application, and information indicating whether the application is automatically executed. An MIM(Module Information Message)(230) defines the module including an ID, a version, and a size of the module, a URL(Uniform Resource Locator) indicating a position capable of receiving the module, and a time when the module is received in the URL. An SBM(Service Binding Message)(240) connects a DMB data broadcasting service with the application, and includes an application to be immediately executed and information about a list of the application connected to the DMB data broadcasting service. An ACM(Application Control Message)(250) transmits a control signal for executing, stopping for a moment, enabling, and ending the application associated with the DMB data broadcasting service. A CM(Certificate Message)(260) includes an electronic signature defined by the AIM(220) or a certificate for the module received in a state capable of receiving a signaling message. An application signaling system receives and analyzes the SBM(240). When a DMB data broadcasting service connected to a video service and an audio service exists, the application signaling system receives and analyzes the AIM(220), the CM(260), and the MIM(230), receives the information about attributes of the application and the module, sets receiving schedules of the application and the module, and provides the DMB data broadcasting service according to the receiving schedules.

Description

Method and system for signaling in DMB data broadcasting {Method and System for Application Signaling for Use in Digital Multimedia Broadcasting}

1 is a diagram showing a mobile communication system for providing a DMB service according to an embodiment of the present invention;

2 is a diagram illustrating an application signaling system in DMB data broadcasting according to an embodiment of the present invention;

3 is a flowchart illustrating an application signaling method in DMB data broadcasting according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: DMB broadcasting center 120: DMB transmitting end

130: DMB satellite 140: DMB receiving end

150: mobile communication network 160: mobile communication terminal

210: module 220: AIM

230: MIM 240: SBM

250: ACM 260: CM

270 video and audio equipment

The present invention relates to an application signaling method and system in DMB data broadcasting. More specifically, the present invention relates to an application signaling method and system in DMB data broadcasting that manages signaling messages, applications, and modules for controlling the start, end, and stop of content when transmitting content of DMB data broadcasting.

As mobile communication terminals are popularized, most of the general people always carry mobile communication terminals such as mobile phones and PDAs. Accordingly, as part of the service provided to the mobile communication terminal, various types of broadcast services, such as satellite DMB service, which provides various multimedia signals such as voice and video to a digitally fixed, portable, and vehicle terminal, are being implemented and prepared.

Digital multimedia broadcasting (DMB) refers to a broadcasting service that digitally modulates various multimedia data such as image data and audio data and provides the same to a fixed terminal or a portable terminal. In other words, high-quality, high-definition broadcasting of CD (CD: Compact Disc) or DVD (DVD: Digital Versatile Disc) can be provided to mobile communication devices such as mobile phones, PDAs (PDAs) or vehicle terminals while on the go. Means service. Unlike conventional analog broadcasting, the DMB broadcasting service is combined with a mobile communication network and provides an interactive service such as remote purchase, telemedicine, and distance education. For example, you can order advertising products that are broadcast on the go, and you can download the educational programs you want.

On the other hand, the DMB broadcasting company is responsible for data broadcasting from the broadcasting committee under the conditions of approval of DMB broadcasting. However, in existing DMB broadcasting, audio and video services are provided without data broadcasting including start, end, stop, and content information of DMB contents, so that the start, end, and stop of contents can be smoothly controlled during DMB contents transmission. There was a problem that can not be.

In order to solve the above problems, the present invention relates to an application signaling method and system in DMB data broadcasting. More specifically, an object of the present invention is to provide an application signaling method and system in DMB data broadcasting that manages signaling messages, applications, and modules for controlling the start, end, and stop of content when transmitting content of DMB data broadcasting.

According to a first object of the present invention, a signaling message for controlling the start, end, and stop of a content when a content of DMB (Digital Multimedia Broadcasting) data broadcast is transmitted to a mobile communication terminal. An application signaling system in DMB data broadcasting for managing applications and modules, the system comprising: a module configured to configure the application in association with a platform mounted on the mobile communication terminal for providing a data broadcasting service to the mobile communication terminal; An Application Information Message (AIM) defining attributes of the application including an ID, a version, a format of the application, an executable receiver profile and version, a dependency relationship between the applications, a configuration module of the application, and whether the application is automatically executed; A Module Information Message (MIM) defining attributes of the module including an ID, a version, a size of the module, a URL indicating a downloadable location, and a time at which the module can be downloaded from the URL; A Service Binding Message (SBM) that connects a DMB data broadcasting service and the application, and includes information on a list of applications that should be executed immediately and the application connected to the DMB data broadcasting service; An application control message (ACM) for transmitting a control signal for executing, pausing, activating, and terminating an application associated with the DMB data broadcasting service; A certificate message (CM) including a certificate for the module received in a state capable of receiving an electronic signature or the signaling message defined by the AIM; And a video service and an audio service which connect the application to provide the DMB data broadcasting service to the mobile communication terminal.

According to a second object of the present invention, an attribute of the application is defined including an ID, a version, a format of an application, an executable receiver profile and version, a dependency relationship between the applications, a configuration module of the application, and whether the application is automatically executed. An application information message (AIM); A Module Information Message (MIM) defining attributes of the module including an ID, a version, a size of the module, a URL indicating a downloadable location, and a time at which the module can be downloaded from the URL; A Service Binding Message (SBM) that connects a DMB data broadcasting service and the application, and includes information on a list of applications that should be executed immediately and the application connected to the DMB data broadcasting service; An application control message (ACM) for transmitting control signals for executing, pausing, activating, and terminating an application associated with the DMB data broadcasting service; A certificate message (CM) including a certificate for the module received in a state capable of receiving an electronic signature or the signaling message defined by the AIM; And a video service and an audio service that connect the application to provide the DMB data broadcasting service to the mobile communication terminal. An application signaling method in DMB data broadcasting for managing signaling messages, applications, and modules for controlling, the method comprising: (a) receiving and analyzing an ACM of a PMT (Program Map Table); (b) receiving and analyzing the SBM to determine whether there is a DMB data broadcasting service connected to the video service and the audio service; (c) receiving AIM, CM and MIM when it is determined in step (b) that the DMB data broadcasting service connected to the video service and the audio service exists; (d) analyzing the AIM, the CM, and the MIM, receiving information on attributes of an application and a module, and setting a reception schedule of the application and the module; And (e) providing the DMB data broadcasting service to the video service and the audio service according to the reception schedule.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a diagram illustrating a mobile communication system for providing a DMB service according to a preferred embodiment of the present invention.

The mobile communication system providing the DMB service includes a DMB broadcasting center 110, a DBM transmitting terminal 120, a DMB satellite body 130, a DMB receiving terminal 140, a mobile communication network 150, and a mobile communication terminal 160. do.

The DMB broadcasting center 110 receives broadcast contents from a program provider (PP), compresses and modulates them into digital signals, and transmits them to the DMB satellite body 130 through the Ku-Band band. In the following process, for convenience of description, a digital signal that is compressed and modulated by the DMB broadcasting center 110 and transmitted in the Ku-Band band is defined as a DMB signal.

The DMB signal transmitted from the DMB broadcasting center 110 is transmitted from the DBM transmitter 120 to the DMB satellite body 130 through an air interface. The air interface through which the DMB signal is transmitted is composed of a video channel, an audio channel, and a data channel. Video data of broadcast content is transmitted through a video channel, and audio data is transmitted through an audio channel. Meanwhile, broadcast information data of broadcast content is transmitted through a data channel.

The above-mentioned broadcast information data includes information such as the title of the broadcast content, the content of the broadcast content, the cast appearing in the broadcast content, the advertisements and props included in the broadcast content, and the DMB satellite 130 through the data channel. Is sent.

The DMB satellite body 130 is settled in a stationary orbit about 36,000 km from the ground, and rotates at a speed of 11,000 km per hour, which is the same as the rotation speed of the earth. The DMB satellite body 130 refers to a device that serves as a relay for receiving a DMB signal transmitted from the DMB transmitting terminal 120 and relaying the DMB signal to the DMB receiving terminal 140. In general, the DMB satellite 130 includes four 25 MHz Ku-Band repeaters and 36 25 MHz S-Band repeaters that provide a frequency band for transmitting DMB signals to the mobile communication system. The DMB satellite 104 transmits an S-Band CDM (CDM) signal and a Ku-Band Time Division Multiplexing (TDM) signal at the same time. The reason for transmitting the TDM signal in the Ku-Band band is to transmit radio waves. This is because it transmits to a gap filler installed in an underground space that is difficult to receive, in a building, a dense area of a house, and the like.

The DMB receiver 140 is a component included in the mobile communication network 150 for receiving and transmitting the DMB signal transmitted from the DMB satellite body 130 to the mobile communication terminal 160, including a gap filler which is a shadow area repeater. It is composed. That is, the DMB receiver 140 receives the DMB signal transmitted through the air interface, and transmits the received DMB signal to the mobile communication network 150.

The mobile communication network 150 includes a mobile communication switching center (not shown), a base station transmitter (not shown), and a base station controller (not shown).

The mobile switching center performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration and handoff procedures, and interworking with other networks. The mobile switching center of the IS-95 / A / B / C system has an access switching subsystem (ASS) that performs distributed call processing, an INS (interconnection network subsystem) that performs centralized call processing, and Subsystems such as a Central Control Subsystem (CCS) in charge of the centralization function, and a Location Registration Subsystem (LRS) for storing and managing information on mobile subscribers.

Each base station transmitter is arranged in units of cells and receives a call request signal from the mobile communication terminal 160 through a traffic channel among signal channels, and transmits the received call request signal to the base station controller or transmits the received call request signal to the base station controller. The location registration to grasp the location of the mobile communication terminal 160 existing in the cell area under jurisdiction is performed. In addition, the base station transmitter is a network endpoint device that is directly connected to the mobile communication terminal 160 by performing baseband signal processing, wired and wireless conversion, and transmission and reception of wireless signals.

The base station controller controls the base station transmitter, and assigns and releases radio channels to the mobile communication terminal 160, transmit power control of the mobile communication terminal 160 and the base station transmitter, soft handoff and hard handoff between cells. (Hard Handoff) Determination, transcoding and vocoding, GPS clock distribution, operation and maintenance of the base station. The base station controller also transmits the subscriber information of the location registered mobile communication terminal 160 to the mobile communication switching center. The base station controller transmits the call request signal transmitted from the mobile communication terminal 160 through the base station transmitter to the mobile communication exchange station. In contrast, the base station controller transmits the call request signal transmitted from the mobile communication exchange station through the base station transmitter. It serves as a).

In the present invention, the mobile communication terminal 160 is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, GSM (Global System for Mobile) phone, W-CDMA (Wideband CDMA) phone, CDMA-2000 phone And MBS (Mobile Broadband System) phones. That is, the mobile communication terminal 160 refers to a terminal capable of voice call and data communication with the other party through the mobile communication network 150 and capable of receiving a DMB signal transmitted from the DMB satellite body 1130. In addition, the mobile communication terminal 160 refers to a terminal capable of deriving broadcast information data included in a data channel among mobile communication DMB signals transmitted through the mobile communication network 150.

The user can display information such as broadcast information of the broadcast content that he / she wants to watch, such as the title of the broadcast content, the content of the broadcast content, the cast members appearing in the broadcast content, and the advertisements and props included in the broadcast content. 160, the mobile communication terminal 160 monitors the broadcast information data included in the DBM signal transmitted through the mobile communication network 150, and receives a text message when a DMB signal including the broadcast information set by the user is received. And / or generate a beep to notify that the corresponding broadcast content is on the air. Meanwhile, the mobile communication terminal 160 may be switched to an automatic ON state in which the broadcast content can be received without generating a text message and / or a beep sound.

In addition, the mobile communication terminal 160 not only provides a voice call function for performing a normal voice call through wireless communication with other mobile communication terminals through the mobile communication network 150, but also uses a provided text writing function. It refers to a terminal that composes a short message to be transmitted and then transmits the prepared message to a mobile communication network.

To this end, the mobile communication terminal 160 includes a wireless application protocol (WAP), which is an Internet access protocol, a MIE (Microsoft Internet Explorer) based on HTML using an HTTP protocol, and a handheld device transport protocol (HDPT). Access the Internet via a mobile communication network using a browser for wireless Internet access such as Transport Protocol), NTT DOKOMO's i-Mode or SK Telecom's 'NATE'. Among the Internet access protocols used by the mobile communication terminal 160, MIE uses a shortened version of HTML, which is abbreviated m-HTML, and in the case of i-Mode, a language called compact HTML (c-HTML), which is a subset of HTML. Use

2 is a diagram illustrating an application signaling system in DMB data broadcasting according to an embodiment of the present invention.

Module 210 according to a preferred embodiment of the present invention is a library to configure the application in conjunction with the platform mounted on the mobile communication terminal for providing a data broadcasting service to the mobile communication terminal.

Application Information Message (AIM) 220 according to a preferred embodiment of the present invention is the ID, version and format of the application, the receiver profile and version that can be executed, the dependency definition between the application, the configuration module of the application, whether to run automatically, etc. Defines other information of the containing application and information including information to be shown to the user such as icons, names and descriptions representing the application. In addition, the AIM 220 defines an electronic signature to prevent tampering with the contents of the above information. The AIM 220 may include additional information according to the format of the application, and the additional information is added in the descriptor format.

The module information message (MIM) 230 according to the preferred embodiment of the present invention includes information about a module referenced by an application defined in the AIM 220. Information about modules defined within AIM 220 should be included in associated MIM 230. The MIM 230 includes information about an ID, a version, a size of the module, a URL indicating a location from which the module can be downloaded, and a time when the module can be downloaded from the URL. If multiple modules can be specified for each module, and multiple URLs are specified for one module, it is up to the receiver internal policy to use which URL to download the module. In addition, there is no restriction on the URL that can be specified, and the module can be downloaded to the communication network using HTTP or the like, and the module transmitted to the same broadcast channel or another broadcast channel can be specified.

Service binding message (SBM) 240 according to a preferred embodiment of the present invention serves to associate the application for each service. An application can be specified to run at the time of service selection and can only be executed when specified by the ACM 250. Checking the SBM 240 can confirm in advance the application associated with the service as well as the application to be executed immediately. Therefore, when the user selects a service, the application list may be checked in advance, and the application to be downloaded may be selected. For example, when a download is started by confirming the existence of an application that provides additional information of a show program that is aired on a Saturday afternoon, the module constituting the application may be received at any time.

The application control message (ACM) 250 according to a preferred embodiment of the present invention transmits a control signal to the SBM 240 to execute or suspend, activate, and terminate an application associated with a service. The ACM 250 allows an application to start and end at the same time for certain events in the service. Since the ACM 250 references the connection ID between the service and the application defined in the SBM 240, the size is very small.

Certificate Message (CM) 260 according to a preferred embodiment of the present invention includes a certificate for all modules received in a state capable of receiving an electronic signature or signaling message defined by the AIM 220.

Signaling messages are transmitted by a transmission scheme defined for each network. The ACM 250 is transmitted at a minimum of 1 second period, and the remaining signaling messages are transmitted at a minimum of 10 second period. In addition, multiple sets of signaling messages may be transmitted in the same MPEG2-TS.

The video service and the audio service 270 according to the preferred embodiment of the present invention connect an application to provide a data broadcasting service to a mobile communication terminal.

3 is a flowchart illustrating an application signaling method in DMB data broadcasting according to an embodiment of the present invention.

Each channel receives and confirms the ACM 250 of the PMT (Program Map Table) (S310).

The SBM 240 is received and the received SBM 240 is checked to determine whether there is a data broadcast service connected to the video service and the audio service 260 (S320).

When it is determined in step S320 that the data broadcasting service connected to the video service and the audio service 260 exists, the AIM 220, the CM 260, and the MIM 230 are received (S330).

The AIM 220, the CM 260, and the MIM 230 received in step S330 are checked to receive information on the application and the module, and a reception schedule of the application and the module is set (S340).

According to the reception schedule of the application set in step S340, the data broadcasting service is provided to the video service and the audio service 270 (S350).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when the content of the DMB data broadcast is transmitted, the signaling message including content start, end, stop, and content information is managed to smoothly control the start, end, and stop of the DMB content. It is effective to carry out.

Claims (9)

DMB (DMB: Digital Multimedia Broadcasting, hereinafter referred to as "DMB") When transmitting the content of the data broadcast to the mobile terminal DMB data to manage the signaling message, applications and modules for controlling the start, end and stop of the content In the application signaling system in broadcast, A module which is a library configured to configure the application in association with a platform mounted on the mobile communication terminal for providing a data broadcasting service to the mobile communication terminal; An Application Information Message (AIM) defining attributes of the application including an ID, a version, a format of the application, an executable receiver profile and version, a dependency relationship between the applications, a configuration module of the application, and whether the application is automatically executed; A Module Information Message (MIM) defining attributes of the module including an ID, a version, a size of the module, a URL indicating a downloadable location, and a time at which the module can be downloaded from the URL; A Service Binding Message (SBM) that connects a DMB data broadcasting service and the application, and includes information on a list of applications that should be executed immediately and the application connected to the DMB data broadcasting service; An application control message (ACM) for transmitting a control signal for executing, pausing, activating, and terminating an application associated with the DMB data broadcasting service; And, Certificate message (CM) including a certificate for the module received in the state capable of receiving the electronic signature or the signaling message defined by the AIM Including; After receiving and analyzing the SBM, if there is a DMB data broadcasting service connected to a video service and an audio service, the AIM, CM, and MIM are received and analyzed to receive information on attributes of an application and a module. And a reception schedule for the DMB data broadcast service according to the reception schedule. The method of claim 1, The AIM is an application signaling system in DMB data broadcasting, characterized in that for defining information to be shown to the user of the mobile communication terminal including an icon, name and description indicating the application. The method of claim 1, The AIM is an application signaling system in DMB data broadcasting, characterized in that for defining the digital signature to prevent tampering of the attributes of the application and information to be shown to the user of the mobile communication terminal. The method of claim 1, The AIM includes additional information according to the type of the application, and the additional information is added in a descriptor format, the application signaling system in the DMB data broadcast. The method of claim 1, The MIM includes information on the module referenced by the application defined by the AIM, and the information on the module defined by the AIM is included in the MIM. Application signaling in DMB data broadcasting system. delete The method of claim 1, The ACM is an application signaling system in DMB data broadcasting, characterized in that referring to the connection ID between the service defined in the SBM and the application. The method of claim 1, The ACM is transmitted at a minimum of one second period, the AIM, the SBM, the MIM and the CM is an application signaling system in the DMB data broadcast, characterized in that the transmission in a minimum of 10 seconds. An Application Information Message (AIM) defining attributes of the application including an ID, a version, a format of an application, an executable receiver profile and version, a dependency relationship between the applications, a configuration module of the application, and whether the application is automatically executed; A Module Information Message (MIM) defining attributes of the module including an ID, a version, a size of the module, a URL indicating a downloadable location, and a time at which the module can be downloaded from the URL; A Service Binding Message (SBM) that connects a DMB data broadcasting service and the application, and includes information on a list of applications that should be executed immediately and the application connected to the DMB data broadcasting service; An application control message (ACM) for transmitting control signals for executing, pausing, activating, and terminating an application associated with the DMB data broadcasting service; And a CM (Certificate Message) including a digital signature defined by the AIM or a certificate for the module received in a state in which the signaling message can be received, when transmitting content of a DMB data broadcast. An application signaling method in DMB data broadcasting for managing a signaling message, an application, and a module for controlling start, end, and stop of the content in (a) receiving and analyzing an ACM of a PMT (Program Map Table); (b) receiving and analyzing the SBM to determine whether there is a DMB data broadcasting service connected to the video service and the audio service; (c) receiving AIM, CM and MIM when it is determined in step (b) that the DMB data broadcasting service connected to the video service and the audio service exists; (d) analyzing the AIM, the CM, and the MIM, receiving information on attributes of an application and a module, and setting a reception schedule of the application and the module; And (e) providing the DMB data broadcasting service to the video service and the audio service according to the reception schedule. Application signaling method in DMB data broadcasting, characterized in that to provide.

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