KR101205582B1 - Method and apparatus for transmitting and receiving notification message in mobile broadcasting system - Google Patents

Abstract

The present invention relates to a method and apparatus for transmitting a notification message in a portable broadcasting system providing a broadcast service. The present invention provides a method of delivering a notification message in a portable broadcasting system, including a process of transmitting a requested notification message to a user, including selecting and requesting a notification message desired by the user.

Mobile broadcast system, DVB-H, DVB-CBMS, notification message request

Description

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING NOTIFICATION MESSAGE IN MOBILE BROADCASTING SYSTEM}

1 is a diagram illustrating a functional structure for transmitting a notification broadcast message in a portable broadcasting system according to an exemplary embodiment of the present invention.

2 is a block diagram illustrating a data model of an electronic service guide (ESG) in accordance with a preferred embodiment of the present invention.

3 is a flowchart illustrating the operation of a portable broadcasting system according to an embodiment of the present invention.

4 is a flowchart illustrating the operation of a terminal according to an embodiment of the present invention.

5 is a block diagram illustrating a broadcast system for transmitting a notification message according to an embodiment of the present invention.

6 is a block diagram illustrating a broadcast system for transmitting a notification message according to an embodiment of the present invention.

The present invention relates to a system for providing a portable broadcast service, and more particularly, to a method and apparatus for transmitting and receiving a notification message indicating a change in a system and a service.

In general, a portable broadcasting system includes discovery of a service by a terminal capable of receiving a portable broadcast, a subscription of a service by the terminal, provision of various control information for receiving the service, transmission of the service and the terminal by the terminal. It consists of the reception of the service. In the portable broadcast system, when a mobile broadcast is performed, the terminal receives a notification message including various information on the broadcast service.

In such a system, a change may occur in the broadcast system due to various factors during which the terminal receives a broadcast, and some of the changes may be information that must be known in the terminal. Examples of the information include a change in a portable broadcast service time and a change in information for receiving a portable broadcast service.

In addition, the electronic service guide (hereinafter referred to as ESG) having information on the mobile broadcast service is essential for the discovery of the service by the terminal at the stage of the portable broadcast. The terminals must receive the service guide to start receiving the mobile broadcast service.

Some of the information in the service guide may change at any time, and whenever the information changes, the service guide for the service must be repeatedly transmitted. In addition, considering the emergence of a new terminal due to the characteristics of portable broadcasting, the service guide for the portable broadcasting service should be repeatedly transmitted even if there is no change. That is, for example, when a user who wants to receive a mobile broadcast by turning on a new power of the terminal appears, or when a new terminal that needs to receive a service guide due to the movement of the user appears, the appeared terminal is already receiving the portable broadcast. The service guide must be received separately from the terminals.

Accordingly, even if the terminal has already received the service guide for the mobile broadcast service, the service guide for the mobile broadcast service is continuously received to continuously check whether the service guide information is updated. In the conventional broadcasting system, in order to know whether the service guide is updated as described above or changes in the service and the system, the terminal must continuously monitor the session in which the corresponding information is transmitted, which causes unnecessary power consumption and resource waste. There is a problem that occurs.

That is, the notification message may be used to effectively allow the terminal to recognize the update of the ESG as well as the above-described reasons. In transmitting such a notification message to a user, a method of transmitting the notification message to the terminal may be generally used.

An object of the present invention is to provide a method and an apparatus for receiving a requested notification message by selecting a notification message to be received by a terminal receiving a broadcast and requesting a service provider from a mobile terminal receiving the broadcast in a mobile broadcasting system providing a broadcast service. . In this case, by selecting only a specific notification message desired by the user and requesting and canceling reception, a notification message specialized for the user can be transmitted.

According to a preferred embodiment of the present invention, in a method of transmitting a notification message to a terminal in a mobile broadcasting system providing a broadcast service, receiving and interpreting a request message for the notification message from the terminal and generating a notification message And checking whether the generated notification message satisfies the condition of the request message based on the interpreted information, and if the condition of the request message is met, transmitting the generated notification message to the terminal. Otherwise, waiting for another notification message to occur.

In addition, according to a preferred embodiment of the present invention, in a method for a terminal to receive a notification message from a portable broadcasting system, receiving a request information for the notification message from a user, and receiving the notification message based on the input request information. Preparing a request message and transmitting the request message to the portable broadcasting system; receiving a notification message corresponding to the request message from the portable broadcasting system, and performing an operation according to the received notification message.
In addition, according to a preferred embodiment of the present invention, in the apparatus for transmitting a notification message from the portable broadcasting system, a notification message generating unit for generating a notification message, and receives and interprets a request message for the notification message from the terminal. When the notification message is generated by the notification message generating unit, it is determined whether the generated notification message meets the condition of the request message based on the interpreted information. And a notification distribution adaptor for sending a message to the terminal and waiting for another notification message if it does not match.
According to a preferred embodiment of the present invention, an apparatus for receiving a notification message from a portable broadcasting system, comprising: an input unit for receiving request information for the notification message from a user, and requesting the notification message based on the input request information; And a notification client for creating a request message and transmitting the request message to the portable broadcasting system, receiving a notification message corresponding to the request message from the portable broadcasting system, and performing an operation according to the received notification message.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intention or custom of a user or an operator. Therefore, the definition should be based on the contents throughout this specification.

The main point of the present invention is that a user can select, request and receive a notification message in a mobile broadcast service, and can use information of an electronic service guide in a mobile broadcast in requesting the notification message.

After explaining the structure of the portable broadcasting system for the convenience of explanation, the format of the notification message and the operation of the system according to the preferred embodiments of the present invention will be described.

In the following description, for the convenience of description of the present invention, names of entities defined in the 3GPP (3G Generation Partnership Project) or DVB-H and DVB-CBMS (Convergence of Broadcasting and Mobile Service), which are asynchronous mobile communication standards, will be used. The standards and names do not limit the scope of the invention, but are of course applicable to systems having a similar technical background.

The terminal may receive a notification message that the service provider sends when a change occurs in the system or service, or in the case of general announcement. However, in some cases, the user may want to receive only the notification messages he / she wants without receiving all the notification messages or not receive the notification messages for a certain period of time or forever. The user may select the determination using information such as ESG information received from the service provider, an event type of a pre-scheduled notification message, and the like, and the terminal may request a message for requesting or stopping the notification message with the information. You can send it to the service provider.

1 is a diagram illustrating a functional structure for transmitting a notification broadcast message in a portable broadcasting system according to an exemplary embodiment of the present invention. The illustrated entities are logical entities that may or may not be physically distinct, and the logical entities may be combined into one or more physical entities. In addition, only the interfaces related to the transmission of the notification message are shown here as interfaces related to the main subject matter of the present invention.

The system shown in FIG. 1 is for DVB-CBMS (Digital Video Broadcasting-Convergence of Broadcasting and Mobile Service) which is one of the portable broadcasting terminal standard apparatuses. For the sake of convenience, the notification broadcast structure of the DVB-CBMS will be described by way of example, but it also operates similarly in other portable broadcasting systems having a notification message function.

Referring to FIG. 1, a content creation (CC) 101 is a provider of a broadcast service, and the broadcast service may be a conventional voice / video broadcast service, a file (music file or data file) download service, or the like. Can be. When a problem or change occurs in the provision of a broadcast service, the content provider 101 changes the notification to a notification event generator (NEF) 102a in the broadcast service application (SA) 102. Notice the matter. The notification event generator 102a transmits a notification message event to a notification generation function (NGF) 103a based on the received event.

The broadcast service application 102 receives the content data of the broadcast service from the content provider 101 and processes it into a form (for example, streaming audio / video or movie download) suitable for a broadcast network, thereby creating broadcast service data. It is responsible for generating standardized metadata required for service guides and generating billing information according to users. In addition, the notification of the change in the broadcast service from the content provider 101 delivers a notification event to the notification generation function (Notification Generation Function) (103a) located in the broadcast service management (103) Service guide attribute information used to generate the notification message is provided to the notification message generating unit 103a.

The broadcast service management unit (SM) 103 plays a role of determining a transmission schedule of a broadcast service supplied from the broadcast service application 102 and generating a service guide. It is connected to an H network 106 and an Interaction Network 107 supporting bidirectional communication. In addition, the broadcast service management unit 103 has a Notification Distribution / Adaption Function (NDAF) 103b therein, receives the notification message from the notification message generating unit 103a, and broadcast network 106. Or a notification message to one terminal or a group of terminals through the interworking network 107. The broadcast service management unit 103 has session information necessary for the notification message generating unit 103a to generate a notification message for a terminal, and the session information is sent from the notification distribution / adapting unit 103b to the notification message generating unit 103a. Is provided.

The broadcast service manager 103 provides service provisioning information such as subscriber information for receiving a broadcast service and information on whether the subscriber has purchased related contents, and device information for terminals receiving the broadcast service. It manages, and transmits the user billing information to the service application 102 and provides the subscription information, service provision information, device information and the like to the broadcast network 106 and the interworking network 107. In particular, the broadcast service management unit 103 includes a notification generation function (NGF) 103a, so that the content provider 101, the service application 102, the service management unit 103, and the broadcast network 106 are provided. A notification message for the notification event is generated when an event such as a new function has been added or changed, or information indicating that the broadcast is provided after a predetermined time is provided. Create a notification message for your own event.

The broadcast network 106 is a network for transmitting a broadcast service. As an example, the present specification will describe DVB-H as an example. When a change occurs in transmitting a broadcast service, the broadcast network 106 notifies the change to the broadcast service manager 103 through the CBMS-6 interface 124a or the X-3 interface 124b. Do this.

The interworking network 107 exchanges control information and additional information related to transmitting a broadcast service one-to-one or receiving a broadcast service in both directions, and becomes an existing cellular network such as 3GPP Wideband Code Division Multiple Access (WCDMA). Can be.

The terminal 108 is a terminal capable of receiving a broadcast service, and has a function of being connected to a cellular network according to the capability of the terminal. In the description of the present invention, it is assumed that the terminal can be connected to the cellular network. The terminal 108 is informed by a Notification Client Function 108a. Receive a notification message sent through the CBMS-5 interface 125 to perform an appropriate operation, or receive a notification message sent through the CBMS-4 interface 126 to perform an appropriate operation.

Next, interfaces between respective block configurations of the portable broadcasting system will be described.

The CBMS-7 interface 122 is an interface from the notification event unit 102a located in the broadcast service application 102 to the notification message generator 103a of the broadcast service manager 103, and in the notification message generator 103a. In order to generate a notification message, information necessary for generating a notification message or notification message (for example, attribute information of a service guide) is carried.

The CBMS-3 interface 125 is used when the notification message transmitted from the notification distribution / adaptation unit 103b of the broadcast service management unit 103 is directly transmitted to the terminal 108 through the broadcast channel via the broadcast network 106. An interface that is used to transmit a notification message to one terminal or multiple terminals.

In the CBMS-4 interface 126, a notification message transmitted from the notification distribution / adaptation unit 103b of the broadcast service management unit 103 is transmitted to the dedicated channel or the interworking network 107 with the terminal 108 via the interworking network 107. An interface used when directly transmitted to the terminal 108 through a provided broadcast channel, and used to transmit a notification message to one terminal or a plurality of terminals.

The CBMS-6 interface 124a is a broadcast service manager 103 used as a reception path for event information generated in the broadcast network 106 or for setting a transmission path that the broadcast service manager 103 will use in the broadcast network 106. ) And the broadcast network 106.

The X-3 interface 124b is an interface used for setting a transmission path to be used between the broadcast service manager 103 and the companion network 107.

The CBMS-1 interface 133 is an interface on which a control signal of a broadcast network is to be delivered to a terminal, and in DVB-H, a control signal channel called PSI / SI (Program Specific Information / Service Information) corresponds to this.

The notification event generating unit 102a transmits information necessary for generating the notification message to the notification message generating unit 103a, and when the notification event generating unit needs to know that an event requiring notification has occurred, the notification event generating unit (a). 103a). The notification message generation unit 103a receives the information and the event necessary for generating the notification message from the notification event generation unit 102a and generates a notification message, or generates a notification message through the notification distribution / adaptation unit 103b. When receiving a notification event serves to generate a notification message and transmit it to the notification distribution / adaptation unit (103b). When the notification message is generated, when it is necessary to notify the start of the service again, the content provider 101 is notified that there is a change in the information of the service and when it is necessary to transmit a new service guide and the broadcast network It may be the case that a special event occurs at 106.

The notification distribution / adaptation unit 103b serves to transmit a notification message through the CBMS-3 125 or the CBMS-4 126, and changes of information on a specific portable broadcasting service from the broadcasting network 106. For example, when receiving a control of a transmission rate or a service unavailable due to a wireless network environment, a notification event corresponding thereto is delivered to the notification message generator 103a.

2 illustrates a data model of an electronic service guide in DVB-CBMS according to a preferred embodiment of the present invention.

Referring to FIG. 2, each block shown represents a fragment of ESG data. That is, the ESG data model includes the service fragment 202, the schedule event fragment 204, the content fragment 206, the acquisition fragment 208, the service bundle fragment 210, It consists of a Purchase fragment 212 and a Purchase channel fragment 214.

The service fragment 202 includes a description of the overall service, the schedule event fragment 204 represents information of a service over time, and the acquisition fragment 208 stores service data. It includes service access information that needs to be received in order to receive, the service bundle fragment 210 includes information on the case of tying several services into one service bundle, the purchase fragment 212 Price information for purchasing the service bundle is informed, and the purchase channel fragment 214 informs information about a system to be used to obtain a right for the purchase.

Each fragment of the data model may refer to another fragment and arrows between the fragments indicate the reference relationship. The reference refers to information that a current fragment is associated with its fragment using information transmitted from another fragment. That is, when one service is composed of several contents, the service fragment 202 includes only the description of the entire service, for example, the name of the service, the language of the service, and the like, and the content itself transmitted through the service. The description is not included, but the service fragment of the corresponding service is referred to in the content fragment 206 of the corresponding content. In addition, in order to know various pieces of information necessary for the terminal to receive the service, for example, session information used in a protocol to be transmitted, the information is received by demodulating and acquiring the acquisition fragment 208 referenced by the service fragment 202. Can be obtained.

The ESG data is transmitted to the terminal using a separate IP stream at a separate time from the actual data stream. Accordingly, the service provider may provide the information before the service transmission, which the user should know before receiving the service using the ESG data model. By receiving the ESG stream, the terminal acquires information necessary for receiving a service provided by a service provider, and when the user selects a specific service, the terminal transmits the service using the obtained information. After accessing the data stream, the data is received. Information for the terminal to access the service data stream is transmitted through the acquisition fragment as described in FIG.

The ESG data model is bundled in several pieces for each fragment and contained in one container, and each container is regarded as one object in a FLUTE session and transmitted.

[Table 1] shows the service fragment XML syntax of the ESG data model, and description of each corresponding element value is described in the service fragment semantics of [Table 2]. Tables 1 and 2 follow the DVB-CBMS ESG specification.

Table 3 shows the service bundle fragment XML syntax of the ESG data model, and description of each corresponding element value is described in the service fragment meaning of [Table 4]. Tables 3 and 4 follow the DVB-CBMS ESG specification.

[Table 5] shows the service types defined in the DVB-CBMS ESG specification.

Table 6 shows information transmitted in a request message of a notification message according to an embodiment of the present invention.

Looking at the terms used in [Table 6], Name represents the name of the element (Element) or attribute constituting the fragment. Type is the name of a component or attribute constituting the fragment, and means that the name is in the form of an element value (E) or an attribute value (A). The element value has a value such as E, E1, E2.

Category is used to distinguish whether or not the element value or attribute value is mandatory in network (N) or terminal (T) .M (mandatory) value is required, and 0 (optional) if optional. Has a value. Therefore, it is indicated as "NM" for essential contents in the network, "TM" for essential contents in the terminal, "NO" for options in the network, and "TO" for options in the terminal.

Cardinality represents a relationship between elements and has values such as "0", "0..1", "1", "0..n", "1..n", and the like. "0" means option, "1" means required, and "n" means that it can have multiple values. Also, "0..n" means that the element value may or may not have n values. Description indicates what the corresponding element value or attribute value means.

[Table 7] is a notification message schema table for better understanding the tables showing element values and attribute values configuring the notification message request message according to the present invention.

Most of the descriptions are described in the 'Explanation' section of [Table 7], so only the lacking parts will be described here. Reference numeral 705 denotes a notification message event type, which is promised in advance between the terminal and the service provider. Reference numeral 707 serves to provide the information when the requested notification message is related to a service or a service bundle, that is, when the user wants to receive only a notification message about a service or service bundle that satisfies a specific condition. . Reference numeral 709 defines conditions when a notification message requested by reference numeral 707 is related to a service, and the conditions are ServiceID, ServiceType, ServiceGenre, Parental Guidance, Service language, Free to air, and Clear to air. Each of these conditions is identical to the conditions used to define an attribute of one service in the service fragment of the ESG of FIG. By using the same condition and the same condition value, the service provider can conveniently use the information on the service to be created at the time of ESG creation for the notification message request, and each can be selectively used as in the ESG. This choice depends on which condition the user will receive a notification message from. That is, the conditions indicate whether the notification message is connected to a service having a specific ServiceID or a notification message having a specific ServiceType. The above conditions may be selectively used.

Reference numeral 711 is a value having the same characteristics as reference numeral 709 and illustrates conditions for a service bundle, not a service. These conditions use the same names and values as those defined in the service bundle fragment of the ESG. Reference numeral 713 may be used when the notification message relates to general information, not to a service or service bundle, such as reference numeral 709 or 711. The notification message of the service provider is delivered here according to the type of information defined by reference numeral 713. That is, when the InformtationType is 'Sport', the service provider may send a notification message to the corresponding terminal regardless of whether or not a particular service is related.

Reference numeral 715 is 'period' information and may be used when the user requests to receive / reject the corresponding notification message only for a specific period of time. The information described in Table 7 may be configured in various ways according to the request notification message, and the configuration according to the notification message of the present invention is not limited to only the information of the configuration shown in Table 7.

[Table 8] is a notification message schema table for better understanding the tables showing element values and attribute values configuring the notification message request message according to another embodiment of the present invention. The difference from [Table 7] is that the information of the terminal sending the request message is included. Therefore, common parts of [Table 8] and [Table 7] will not be described again. In the added DeliveryInformation 802, when a terminal sends a request message of the present invention to receive a notification message requested in a one-to-one manner, the terminal delivers the message to a mobile network operator to use a one-to-one transmission channel. The address of the terminal to be included is included, which may be a phone number assigned to the mobile operator of the terminal.

3 is a flowchart illustrating an operation of a portable broadcasting system according to an embodiment of the present invention.

Referring to FIG. 3, when a notification message request is received from a terminal in step 302, the request message is interpreted in step 303. In step 304, the relatedServiceType is interpreted among the analyzed information, and in step 305, it is determined whether the information relates to a service or a service bundle. If it is determined that the service is related, the service information is interpreted and stored in step 306. In addition, if it is related to the service bundle, in step 307, information about the service bundle is interpreted and stored. In steps 308 and 309, information type information and period information are interpreted and stored. In step 310, it is determined whether the notification message requested by the terminal is required to subscribe based on the interpreted information. That is, in case of a paid notification message that requires purchase, a subscription request message is transmitted to the terminal in step 312. If subscription is not required, in step 311, a confirmation or failure message for the request is sent to the terminal. send.

When the notification message occurs in step 313, if the request message is related to a service / service bundle in step 314, the conditions in the request message are compared with ESG information of the generated notification message related service. In step 315, the type of the requested information is determined according to a service provider's own definition only when the request message has informationType information. That is, for example, each type of information such as sports, traffic information, entertainment information, etc. may be selected through an appointment with a service provider, and since this part is a service provider area, the present invention is not defined in detail. In step 316, it is determined whether the generated notification message satisfies the message condition requested by the terminal based on the steps 314 and 315 and period information. If there is a match, the generated notification message is transmitted to the terminal. Otherwise, the process returns to step 313 and waits until the next notification message is generated.

4 is a flowchart illustrating the operation of a terminal according to an embodiment of the present invention.

Referring to FIG. 4, in step 402, the terminal receives an input for notification message transmission / rejection and conditions from a user. In step 403, a message for requesting a notification message is created using the received information, and in step 404, the prepared request message is transmitted. When the subscription request message is received in step 405, the terminal notifies the user of this in step 406, and then proceeds with the subsequent subscription procedure according to the user's selection in step 407. When the subscription procedure is completed, that is, when the purchase of the notification message is completed, when the confirmation / fail message is received in step 408 without the subscription request message, the terminal waits until the requested notification message is received in step 409. In step 410, the received notification message is rendered to the user or the corresponding operation is performed according to the contents of the notification message.

5 is a block diagram illustrating a broadcast system for transmitting a notification message according to an embodiment of the present invention. Here, the notification distribution / adaptation unit 103b and the notification client 108a show the entity of FIG. 1 in detail. The notification client 108a may be represented the same as the terminal 108 in one function block of the terminal 108.

Referring to FIG. 5, the notification distribution / adaptation unit 103b serves to send a notification message to one terminal or a group of terminals, and includes a UDP packet generator 502 and an IP packet generator 503. It is configured by. When there is a notification message received from the notification event unit 102a, the UDP packet generation unit 502 generates a UDP packet using a previously set notification port and transmits the UDP packet to the IP packet generation unit 503. The notification message is directly input to the UDP layer because the size of protocol headers is relatively large compared to the message size of the actual transmission protocol when the transport protocol of another upper layer is used, thereby reducing efficiency.

The IP packet generation unit 503 generates a UDP packet transmitted by the UDP packet generation unit 502 as an IP packet using an IP address of an ongoing session related to the notification message information. In general, as described above, a notification message can be packetized and sent using only a UDP port number, but as described above, a separate IP session is required to wake up the terminal in sleep and receive the notification message. This is because a terminal that wakes up while sleeping does not have a session in progress. In consideration of these matters, the IP packet generation unit 503 generates and transmits a packet using the IP address of the NotificationAddress as well as generating a packet for an IP address of a session in progress.

The generated IP packets are transmitted to the notification client 108a through a broadcast distribution system or an interaction network. Here, the broadcast distribution system or interworking network is shown as one block 504 for convenience of description. The block 504 is represented by DVB-H in the present specification, but may be modified according to a broadcaster or a system environment.

The notification client 108a decapsulates the IP packet data transmitted from the notification distribution / adapter 103b to decrypt the general notification message. Therefore, the notification client 108a includes an IP packet decryption unit, a UDP packet decryption unit, and a general notification message decryption unit. The IP packet decryption unit 1606 checks whether an IP packet received through the broadcast distribution system or the companion network 504 corresponds to a session in progress or is designated as a notification message reception address. That is, when the IP packet is a packet corresponding to the NotificationAddress, the IP packet decryption unit 506 decapsulates an IP header to generate a UDP packet, and then transmits the UDP packet to the UDP packet decryption unit 507. However, if the IP packet does not correspond to NotificationAddress, the IP packet decryption unit 506 discards the packet.

The UDP decryption unit 507 transfers the upper layer only when the UDP packet transmitted from the IP packet decryption unit 506 is a packet corresponding to a session in progress. However, if the received UDP packet has a notification message identification port number registered in advance through the NotificationPort, the received UDP packet is decapsulated and transmitted to the notification message decryption unit 508 without forwarding the received UDP packet. The notification message decryption unit 508 decodes the notification message by receiving the decapsulated packet and determines a future operation of the terminal according to the content.

6 is a block diagram illustrating a broadcast system for transmitting a notification message according to an embodiment of the present invention.

Referring to FIG. 6, the notification distribution / adaptation unit 103b receives the notification message information 603 from the notification event unit 102a, and the PSI / SI signal generation unit 604a of the DVH-H broadcasting network 604 is received. To send). The PSI / SI signal generator 604a combines the notification message and other information into a PSI / SI signal and transmits the same to the notification client 108a of the terminal. The PSI / SI signal receiving unit 606 of the notification client 180a receives the PSI / SI signal, and the PSI / SI signal decoding unit 607 extracts the notification message by decoding the PSI / SI signal and then the notification message decoding unit. And the notification message decryption unit 608 decrypts and executes the extracted notification message.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

In the present invention that operates as described in detail above, the effects obtained by the representative ones of the disclosed inventions will be briefly described as follows.

According to the present invention, since the user can select and request a desired notification message through the terminal, the user can selectively receive only the desired notification message.

Claims (12)

In the method for transmitting a notification message from the portable broadcasting system to the terminal, Receiving and interpreting a request message for the notification message from the terminal; When the notification message is generated, checking whether the generated notification message satisfies a condition of the request message based on the interpreted information; And transmitting the generated notification message to the terminal if the condition of the request message is met, and waiting until another notification message is generated if it does not match. The method of claim 1, The request message, And the related service information requested by the terminal, information on the type of the related service, and period information on receiving or stopping the notification message. The method of claim 1, Before the notification message occurs, Determining whether a notification message requested by the terminal is required to subscribe based on the interpreted information; And sending a subscription request message to the terminal when the subscription is requested. The method of claim 2, When the request message is related to a service or a service bundle, the electronic service guide (ESG) information of the generated notification message is compared with the conditions of the request message to determine whether the generated notification message meets the conditions of the request message. And determining a notification message. A method for receiving a notification message from a mobile broadcasting system by a terminal, Receiving request information for the notification message from a user; Creating a request message requesting the notification message based on the input request information and transmitting the request message to the portable broadcasting system; Receiving a notification message corresponding to the request message from the portable broadcasting system, and performing an operation according to the received notification message. 6. The method of claim 5, Prior to receiving the notification message, Receiving a subscription request message for the request message; And receiving the information necessary for the subscription from the user and proceeding with a subscription procedure. An apparatus for transmitting a notification message from a portable broadcasting system to a terminal, A notification message generating unit for generating a notification message; Receive and interpret a request message for the notification message from the terminal, and if the notification message occurs in the notification message generating unit, whether the generated notification message satisfies the condition of the request message based on the interpreted information. And a notification distribution adaptation unit for transmitting the generated notification message to the terminal if the condition of the request message is met and waiting for another notification message to be generated if not. . The method of claim 7, wherein The request message, And a related service information requested by the terminal, information on the type of the related service, and period information on receiving or stopping the notification message. The method of claim 7, wherein The notification distribution adaptor, Before the notification message is generated, it is determined whether the notification message requested by the terminal is required to subscribe based on the interpreted information, and when the subscription is requested, a subscription request message is transmitted to the terminal. Notification message transmission device. 9. The method of claim 8, The notification distribution adaptor, When the request message is related to a service or a service bundle, the electronic service guide (ESG) information of the generated notification message is compared with the conditions of the request message to determine whether the generated notification message meets the conditions of the request message. And a notification message transmission device, characterized in that the determination. An apparatus for receiving a notification message from a portable broadcasting system, An input unit for receiving request information for the notification message from a user; Create a request message requesting the notification message based on the input request information, transmit the request message to the portable broadcasting system, receive a notification message corresponding to the request message from the portable broadcasting system, and according to the received notification message. And a notification client for performing an operation. The method of claim 11, The notification client, Before receiving the notification message, receiving a subscription request message for the request message, the notification message receiving apparatus characterized in that the user receives the information necessary for the subscription and proceeds with the subscription procedure.

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