KR20070039449A - Methdo and apparatus for transmitting/receiving a service guide context in a mobile broadcasting system - Google Patents

Abstract

The present invention configures and provides a service guide context in which a terminal recognizes a service guide in a service guide indicating a schedule, purchase information, and access information related to a service and content in a mobile device in a communication broadcasting convergence network providing a mobile broadcasting service. A method and apparatus are provided. The service guide context proposed in the present invention provides information on a service guide constituent, information on all entities constituting the service guide, and a service of an announcement session, which is an entry point for service guide transmission. Provides information on Guided Transmission Interpreter (SGDD).

Service Guide, Service Guide Context

Description

METHDO AND APPARATUS FOR TRANSMITTING / RECEIVING A SERVICE GUIDE CONTEXT IN A MOBILE BROADCASTING SYSTEM}

1 is a diagram illustrating a structure of a service guide for receiving a broadcast service in a general portable broadcasting system.

2 is a diagram illustrating an example of a process in which a mobile terminal receives individual fragments that are basic units of a service guide in a general portable broadcasting system;

3 illustrates a configuration example of a portable broadcasting system to which the present invention is transmitted to transmit a service guide to a mobile terminal.

4 is a diagram illustrating an example of a configuration of a message schema table applied to the present invention.

5 is a flowchart illustrating a process of setting and configuring a service guide by first acquiring service guide context information by a mobile terminal according to an embodiment of the present invention.

6 is a flowchart illustrating a process of setting and configuring a service guide by a mobile terminal receiving service guide context information through an ongoing session according to another embodiment of the present invention.

7 is a block diagram illustrating a configuration of a mobile terminal for receiving and obtaining a service guide context to set and configure a service guide according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for transmitting and receiving a service guide for broadcast reception in a mobile broadcast system. In particular, a service guide context for a mobile terminal to easily receive a service guide in a mobile broadcast system. And a method and apparatus for transmitting and receiving data.

The mobile communication market is continuously demanding the production of new services through recombination or integration of existing technologies. Today, due to the development of communication and broadcasting technologies, mobile terminals such as mobile phones and PDAs in conventional broadcasting systems or mobile communication systems are , A "mobile terminal"). IT is strengthening the mobile communication business by accommodating such potential and actual market demands, rapidly increasing user demands for multimedia services, strategies of operators to provide new services such as broadcasting services in addition to existing voice services, and demands of consumers. With companies' interests in mind, convergence of mobile communication services and IP is becoming a big trend in the development of next generation mobile communication technology.

The Open Mobile Alliance (OMA) is an organization that researches standards for interoperability of individual mobile solutions. The OMA plays a role in determining various application standards for mobile communication games and Internet services. In particular, the OMA BAC BCAST (Open Mobile Alliance Browser and Content Mobile Broadcast Sub Working Group) of the working group of the OMA is studying a technology for providing a broadcast service using a mobile terminal. Hereinafter, a brief description will be given of the portable broadcasting system discussed in the OMA.

First, a mobile terminal for receiving a broadcast service in a portable broadcasting system must receive service guide information including description information about the service itself, billing information for the service, and information on a method of receiving the service. The service is received using the service guide information.

Hereinafter, a description will be given based on the OMA BCAST technology, which is one of the portable broadcast technology standards, to give a concrete example in the prior art and the description of the present invention, but this description does not limit the content of the present invention.

1 is a diagram illustrating a structure of a service guide for receiving a broadcast service in a general portable broadcasting system, which is a structure proposed by the OMA BAC BCAST to provide a broadcast service to a mobile terminal. One service guide is composed of fragments having a respective purpose, and each fragment is divided into four groups as shown in FIG. 1 according to a purpose of use.

1 illustrates an example of configuring a service guide into an administrative group 100, a provisioning group 110, a core group 120, and an access group 130. It is. In FIG. 1, a solid line connecting each fragment refers to a cross reference between each fragment.

The administrative group 100 is a group that provides basic information for the mobile terminal to receive a service guide. The management group 100 includes a service guide context fragment 101 and a service guide delivery descriptor fragment 102.

The service guide context fragment 101 provides a service guide identifier (ID), identification information of the operator who generated and transmitted the service guide, and information on the overall service guide. The service guide delivery interpreter fragment 102 informs the mobile terminal of channels, schedule information, and update information capable of receiving a plurality of service guide fragments, so that the mobile terminal can receive only the service guide necessary at a suitable time. to provide.

In FIG. 1, the supply group 110 is a group providing fee information for receiving a service. The supply group 110 includes a purchase item fragment 111, a purchase data fragment 112, and a purchase channel fragment 113. The Purchase Item fragment 111 provides fee information for a service or a service bundle, and the Purchase data fragment 112 represents actual price information for a Purchase Item. The purchase channel fragment 113 provides information on a system and a payment method for a service user to actually purchase a service.

In FIG. 1, the core group 120 is a group providing information about a service itself. The core group 120 includes a service fragment 121, a schedule fragment 122, and a content fragment 123. The service fragment 121 provides a description of the service itself to be received by the user and information on what content the service can be configured, and the schedule fragment 122 is provided by the service. And provide information about the available time, and the Content fragment 123 provides information about a plurality of contents constituting the service, respectively.

In FIG. 1, the access group 130 includes an access fragment 131 and a session description fragment 132. The access group 130 provides service access information on how to receive services provided through the core group 120 and specific information on a session in which contents constituting the service are transmitted. Allow access to the service.

The access fragment 131 provides a method for accessing various additional services based on one service by providing a plurality of access methods for one service to the mobile terminal. The session description fragment 132 provides session information on a service defined in one access fragment. In addition, the service guide information may further include a preview data fragment 124 for providing a preview and an icon for a service and content, in addition to the four groups as illustrated in FIG. 1.

2 is a diagram illustrating an example of a process in which a mobile terminal receives individual fragments that are basic units of a service guide in a general portable broadcasting system.

In the portable broadcasting system, the service guide is transmitted to the mobile terminal as an object in binary form (Ojbect), and the service guide delivery unit (SGDU) (SGDU # 1 to SGDU # N) of FIG. It is shown. As shown in FIG. 2, one SGDU 204 includes fragments (Fragment1 to FragmentN) 205 for one or a plurality of service guides. The fragment 205 may be a service fragment 121, a schedule fragment 122, a content fragment 123, a preview data fragment 124, an access fragment 131, a session analysis fragment 232, purchase as described in FIG. The item fragment 111, the purchase data fragment 112, the purchase channel fragment 113, and the like.

The object of the SGDU 204 is delivered to the mobile terminal through a broadcast or interactive channel, and the Service Guide Delivery Descriptor (SGDD) (SGDD # 1 to SGDD # N) of FIG. 2 ( 202 includes information for receiving such an object. Therefore, the individual fragments constituting the service guide are included in the SGDU 204 indicated by the SGDD 202 and delivered to the mobile terminal.

Sessions to which service guides are delivered are classified into two categories: One is Announcement Session 201 and the other is Delivery Session 203. Through the announcement session 201, the mobile terminal receives the SGDD 202 from the system, checks the delivery session 203 through the received SGDD 202, and receives the SGDU 204 existing in the session. You receive the corresponding fragment that makes up the service guide.

The conventional portable broadcasting system transmits individual fragments of the service guide to the mobile terminal through the SGDD of the publication session, so that the mobile terminal can configure the received fragment in the form of a service guide through the SGDD. However, there is a problem that the information about the publication session for receiving SGDD, which is the first entry point for receiving the service guide, is not known.The owner information of the service guide and the overall service area information provided by the service guide are unknown. However, there is a problem that the current fragment must be provided for each fragment because the basic language information cannot be provided.

The present invention provides a method and apparatus for transmitting and receiving a service guide context for a mobile terminal to easily receive a service guide in a portable broadcasting system.

In another aspect, the present invention provides a method and apparatus for transmitting and receiving a service guide context for providing information on an announcement session so that a mobile terminal can receive SGDD for receiving a service guide in a portable broadcasting system.

The present invention also provides a method and apparatus for transmitting and receiving a service guide context in which a mobile terminal can identify from which system or service provider a service guide is provided.

The method of the present invention provides a method of transmitting service guide information for using a broadcast service from a mobile broadcasting system to a mobile terminal, the method comprising: transmitting service guide context information constituting the service guide to the mobile terminal; And providing the at least one fragment corresponding to the in the publication session.

In addition, the method of the present invention is a method for a mobile terminal to receive service guide information for using a broadcast service in a mobile broadcasting system, the predetermined service guide context information including announcement session (Announcement Session) information for receiving the service guide And receiving at least one fragment of a corresponding service guide through the service guide delivery interpreter in the publication session and configuring the service guide.

An apparatus of the present invention is a mobile terminal for receiving service guide information for using a broadcast service in a portable broadcasting system, comprising: an RF unit for receiving a radio signal from a wireless network and performing RF processing; and a modem for recovering the radio signal to an original signal And predetermined service guide context information including announcement session information for receiving the service guide from the portable broadcasting system, and at least for the service guide through the service guide delivery interpreter in the announcement session. And a controller configured to receive one fragment and configure the service guide.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention. The following embodiments of the present invention will be described based on the technology of OMA BAC BCAST, which is one of the portable broadcasting technology standards, but the following embodiments do not limit the scope to which the present invention can be applied.

3 illustrates a configuration example of a portable broadcasting system to which the present invention for transmitting a service guide to a mobile terminal is applied.

First, Tables 1 and 2 show the interfaces used between the components (logical entities) of FIG. 3.

In FIG. 3, the content creation block 301 is a provider of a broadcast service (hereinafter, referred to as a BCAST service), and the BCAST service may be a conventional voice / video broadcast service, a file download service of a music file, a data file, or the like. Can be. The content provider 301 uses service guide content creation source (hereinafter referred to as SGCCS) unit 302 to provide content information, performance information of a mobile terminal, and user profile necessary for constructing a service guide of a BCAST service. , The content time information, etc. are transmitted to the Service Guide Application Source (hereinafter referred to as SGAS) unit 305 of the BCAST service application block 304 through the SG1 interface 303 of Table 1 above.

In FIG. 3, the BCAST service application block 304 receives BCAST service data from the content provider block 301 and processes the BCAST service data into a form suitable for the BCAST network to create BCAST service data. In addition, the BCAST service application block 304 is responsible for generating standardized metadata for portable broadcast guidance. The SGAS unit 305 is a BCAST which will be described later through the interface SG2 306 for various sources necessary for the configuration of the service guide, including information received from the SGCCS unit 302, such as service and content detailed information, schedule information, location information The service guide generation (hereinafter referred to as SG-G) of the service distribution / adaptation block 308 is transferred to the unit 309.

In FIG. 3, the BCAST service distribution / adaptation block 308 sets a bearer for transmitting BCAST service data supplied from the BCAST service application block 304, determines a transmission schedule of the BCAST service, and portable broadcasting. It is responsible for generating guide information. The BCAST service distribution / adaptation block 308 is connected to a broadcast distribution system (BDS) 322, which is a network for transmitting BCAST service data, and a bidirectional network 323 supporting bidirectional communication.

The service guide generated from the SG-G unit 309 is sent to a terminal 319 through a service guide distribution unit (SG Distribution: SG-D) unit 310 and the SG-5 interface 317. Delivered. If the service guide is delivered through the BDS 322 or the bidirectional network 323 supporting two-way communication or matching is required in relation to the system or network, the service guide generated from the SG-G unit 309 may be a service guide. BSC Service Distribution block 321, which is matched in the SG-A unit 311 and delivered to the SG-D unit 310 or described later through the SG-B1 interface 316, will be described later. Is passed).

In FIG. 3, the BCAST Subscription Management block 313 manages subscription information and service provision information for receiving the BCAST service and device information for the mobile terminal receiving the BCAST service. The Service Guide Subscription Source (hereinafter referred to as SGSS) unit 314 of the BCAST subscription management block 313 is a subscription-related, provisioning-related source and purchase information, and promotion-related information related to the generation of a service guide. And the like to the SG-G unit 309 which generates a service guide via the SG4 interface 312.

In FIG. 3, the BDS service distribution block 321 distributes all received BCAST services through a broadcast channel or an interaction channel, and may exist according to the type of the BDS 322. An object that may or may not exist. The BDS 322 is a network transmitting BCAST service, and may be, for example, a broadcasting network such as DVB-H, MBMS of 3GPP, BCMCS of 3GPP2, and the like. The bidirectional network 323 transmits the BCAST service one-to-one or exchanges control information and additional information related to receiving the BCAST service in both directions, and may be, for example, an existing cellular network.

In FIG. 3, the mobile terminal 319 is a terminal capable of receiving a BCAST service and has a function of being connected to a cellular network according to the capability of the terminal. The mobile terminal 319 includes a service guide client (hereinafter referred to as SG-C) to receive a service guide transmitted through the SG5 interface 317 or a notification message transmitted through the SG6 interface 318. Receives and performs the appropriate operation for receiving BCAST service.

Tables 3 to 5 summarize the functions of the main components (logical entities) of FIG. 3 in the standard of the OMA BCAST service.

4 illustrates a configuration example of a message schema table applied to the present invention.

In FIG. 4, the name 401 indicates a name for an element value and an attribute constituting the message. The type 403 indicates whether the name 401 is in the form of an element value or an attribute value, and the element value has a value such as E1, E2, E3, or E4. Here, E1 represents the upper element value for the entire message, E2 represents the lower element value of E1, E3 represents the lower element value of E2, and E4 represents the lower element value of E3. The attribute value is represented by A, where A represents the attribute value of the element. For example, A below E1 represents the attribute value of E1.

In FIG. 4, the category 405 is used to distinguish whether a corresponding element value or an attribute value is required content or option content in a network N or a terminal T, and has an M value if it is required and an O value if it is an option. . Therefore, the essential content in the network is divided into "NM", the essential content in the terminal "TM", the option content in the network is "NO" and the option content in the terminal is divided into "TO". Cardinality 407 represents a relationship between elements and has values of 0, 0..1, 1, 0..n, 1..n. 0 means option, 1 means mandatory relationship, and n means that it can have many values. Also 0..n means that the element value may or may not have n values. The description 409 indicates what the corresponding element or attribute value means, and the data type 411 means the type of the programming language in which the data is written. For example, it may be XML (eXtensible Markup Language).

Hereinafter, the service guide context structure proposed by the present invention will be briefly described with reference to Tables 6 to 9 below. It should be noted that the following Tables 6 to 9 illustrate the element values and the attribute values constituting the service guide context for convenience of description. In addition, in the following Tables 6 to 9, data types are used, for example, XML, but other programming languages may be used.

First, the service guide context proposed in the present invention is generated from the SG-G 309 of FIG. 3, and the owner information on the service guide, the version information on the service guide, and the service area information of the service guide are related to the service guide. Include. In addition, the mobile terminal of the present invention receives the service guide context as shown in Tables 6 to 9, and transmits to the corresponding service guide through the SGDD 202 in the Announcement Session 201 described in FIG. You can receive a fragment to construct a complete service guide.

Looking at the main components of the service guide context, that is, "ServiceGuideContext" in Table 6, "ServiceGuideInfo" is the entire service guide collected and distributed in the BCAST service distribution / adaptation block 308 (hereinafter BSDA) of FIG. Represents information about. The "ServiceGuideInfo" includes "SGId" which is identification information of a corresponding service guide, "SGVersion" which is version information of a corresponding service guide, and "BSDAId" which is identification information of a BSDA system for distributing the service guide. .

In the present embodiment, the service guide is identified using the "SGId" and "SGVersion" of the <Table 6>, but since the first entry point (Entry Point) for receiving the service guide is SGDD, for example, It is also possible to define the version information and to include the ID and the version information of the SGDD in the service guide context information to identify the service guide through this.

In Table 7, the "ServiceProvider" is an optional element value, and the distribution and owner of the service guide are BSDA systems, but additionally, to inform the information of the service provider (Service Provider) producing and distributing the corresponding service guide. The "ServiceProvider" includes a name of a service provider (ProviderName) and URI (Uniform Resource Identifier) information. In Table 7, "Bradcast_area" indicates regional information where a service guide is distributed, that is, a service is provided.

In Table 8, "CC" represents country information in which a service is provided as a country code, and detailed region information can be displayed through "Name_area" and "zip_code" for region classification. In Table 8, "Language" indicates language information for displaying a service guide.

In Table 9, "SGAnnoucements" indicates information about an announcement session in which the SGDD 202 of FIG. 2, which is the first entry point for receiving a fragment of the service guide, exists according to the present invention. Indicates. As shown in Table 9, the "SGAnnoucements" includes "AnnouncementSession" and "SGDDInfo" information. Here, "AnnouncementSession" represents FLUTE Session information in which the SGDD 202 is transmitted. The "AnnouncementSession" indicates a source IP address, a source IP address, a destination IP address, a port number, and a session ID. Session ID). The session to which the SGDD 202 is transmitted is, for example, a FLUTE Session, which is one of file transfer protocols, and the protocol may be any protocol as long as it is a file transfer protocol. The "SGDDInfo" includes SGDD reception period as SGDD information about a corresponding Announcement Session.

The operation of the mobile terminal receiving the service guide context having the structures of Tables 6 to 9 will be described with reference to FIG. 5 below.

5 is a flowchart illustrating a process of setting and configuring a service guide by first acquiring service guide context information by a mobile terminal according to an embodiment of the present invention.

In step 501, the mobile terminal acquires the service guide context as an out of band rather than an ongoing session. Out of Band is a method of receiving in a non-in-progress session, which is provided offline through a dealer when a service is subscribed, or through a BDS (Broadcast Distribution System) such as DVB, 3GPP MBMS, or 3GPP2 BCMCS that provides mobile broadcasting services. There can be a variety of methods, including how to receive and how to receive through Terminal Provisioning. In step 502, the mobile terminal checks the announcement session related information ("SGAnnouncement") information from the obtained service guide context. In step 502, the mobile terminal accesses an announcement session 201 to receive SGDD through the announcement session related information.

In step 504, the mobile station receives the SGDD present in the accessed announcement session 201 and checks delivery session information for receiving the SGDU through the received SGDD. In step 505, the mobile terminal accesses the delivery session 203 to receive the SGDU, and receives fragment information through the SGDU received in step 506 and stores the fragment information in the internal memory. In step 507, the mobile terminal configures a corresponding service guide through the received fragment and the SGDD and the SGDU.

Subsequently, the operation of setting the owner information and the service area information on the service guide configured in step 507 according to the present invention through the received service guide context will be described. The owner information of the service guide is set through the "Service Provider" information of <Table 7> and the "BSDAid" information of the <Table 6>. In step 509, service area information is checked from the service guide context, and service area information of the received service guide is set.

In step 510, the mobile terminal checks the value of "Language" indicating the language in which the service guide is displayed from the service guide context, sets the default language of the received service guide. To finish. When configuring a service guide, when the service guide exists as a file or an object as in steps 509 to 511, the service guide context may be included in the service guide. In addition, when the service guide context exists as an object separate from the service guide, owner information, service area information, and language information about the service guide may be displayed through the service guide context.

6 is a flowchart illustrating a process of setting and configuring a service guide by a mobile terminal receiving service guide context information through an ongoing session according to another embodiment of the present invention.

In the embodiment of FIG. 6, the mobile terminal may be provided with service guide context information when receiving the SGDD. In step 601, the mobile station receives SGAnnouncement information of a service guide through a broadcast distribution system (BDS) for transmitting broadcast services such as DVB, MBMS, and BCMCS. In step 602, the mobile terminal accesses the announcement session 201 through the received announcement session related information.

In step 603, the mobile station receives the SGDD through the corresponding announcement session 201 and checks the delivery session information for receiving the SGDU from the SGDD. In addition, the mobile terminal is provided with a service guide context (SG context) from step 607 and step 607 simultaneously with step 603. Steps 604 to 606 in which the mobile terminal accesses the delivery session 203 to receive the SGDU, and receives the fragment information through the received SGDU to configure the service guide, are the same as those described in steps 505 to 507 in FIG. 5. Do. Steps 608 to 611 are the same as the descriptions of steps 508 to 511 of FIG. 5. The following table shows detailed information about SGAnnouncement, element value, and attribute value when receiving announcement session information as out of band. Table 10 below shows main elements and setting values of the announcement session-related information applied to the embodiment of FIG. 6.

Tables 11 to 13 show main elements and setting values for the service guide context applied to the embodiment of FIG. 6.

7 is a block diagram illustrating a configuration of a mobile terminal for receiving and acquiring a service guide context to set and configure a service guide according to the present invention.

As shown in the embodiment of FIG. 5, the mobile terminal using the broadcast service of FIG. 7 may obtain service guide context information (SG context) as Out of band or access the portable broadcast system and receive the broadcast information through a publication session. The service guide context proposed by the present invention includes owner information related to the service guide, version information on the service guide, service region information of the service guide, and the like.

The service guide context information is restored to a readable signal through an RF unit 703 that performs RF processing and a modem unit 705 that performs modulation / demodulation and / or encoding / decoding, and is transmitted to the controller 707. The controller 707 has a predetermined Service Guide Client (SG-C) 709 configured to set up and configure a service guide by receiving a service guide context through an ongoing session or through an out of band. . The service guide client 709 receives service guide announcement information (SGAnnouncement) from the received service guide context, and announces session announcement information in which a service guide delivery interpreter (SGDD) having received the service guide is present. Check. In addition, the service guide client 709 may access a publication session through a broadcast distribution system (BDS), and receive service guide context information together when receiving the SGDD through the publication session.

The acknowledgment controller 707 also accesses the announcement session from the service guide client 709 and receives a service guide delivery interpreter (SGDD) existing in the announcement session through the receiving end. The service guide client 709 checks delivery session information indicated by the SGDD through the received SGDD, and accesses a delivery session to receive all existing service guide delivery units (SGDUs). .

In addition, the service guide client 709 receives fragment information through the received SGDU to configure a service guide, and sets owner information, service area information, language information, etc., for the service guide based on the service guide context. do.

As described above, according to the present invention, a service guide context may be provided to a mobile terminal receiving a broadcast service to inform owner information related to the service guide, version information about the service guide, and service area information of the service guide.

Further, according to the present invention, a mobile terminal can provide a method of transmitting and receiving a service guide context for easily receiving a service guide.

In addition, according to the present invention, after the mobile terminal receives a fragment for a service guide through SGDD, the mobile terminal can reliably receive a broadcast service by configuring a corresponding fragment to form a complete service guide.

Claims (3)

A method for transmitting service guide information for using a broadcast service from a mobile broadcasting system to a mobile terminal, Transmitting service guide context information constituting the service guide to the mobile terminal; And providing at least one fragment corresponding to the configuration information in a publication session. In the method of receiving a service guide information for using a broadcast service in a mobile terminal in a mobile broadcasting system, Acquiring predetermined service guide context information including announcement session information for receiving the service guide; And receiving at least one fragment of a corresponding service guide through a service guide delivery interpreter in the publication session to configure the service guide. A mobile terminal for receiving service guide information for using a broadcast service in a mobile broadcasting system, An RF unit for receiving a radio signal from a wireless network and performing RF processing; A modem unit for restoring the wireless signal to an original signal; Obtaining service guide context information including announcement session information for receiving the service guide, and receiving at least one fragment of the corresponding service guide through a service guide delivery interpreter in the announcement session to receive the service guide. And a controller configured to configure a service guide context receiving device of the mobile terminal.

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