KR20080030895A - Method for receiving esg data according to session partitioning rule and the dvb-h received terminal therefor - Google Patents

Abstract

A DVB-H(Digital Video Broadcasting-Handled) receiving terminal device and a method for receiving ESG(Electronic Service Guide) data are provided to minimize confusion in performing a reception operation of the DVB-H receiving terminal device even when a partitioning rule is present in one or two types of compound rules. A digital broadcasting receiver(50) receives each ESG data session from a DVB-H transmission server in a multiple-stream mode. A controller(10) determines whether a partitioning rule is applied to each session, which is received by the digital broadcasting receiver. If the partitioning rule is applied to each session, the controller checks a type of rule applied to each session, and acquires ESG data from each session based on the checked type of rule.

Description

ESS method for receiving ES data according to session partitioning rule and DVB-H receiving terminal for the same and the DVB-H RECEIVED TERMINAL THEREFOR}

1 is a block diagram illustrating an ESG single stream transmission mode according to an embodiment of the present invention;

2 is a block diagram illustrating an ESG multiple stream transmission mode according to an embodiment of the present invention;

3 is an internal block diagram of a DVB-H receiving terminal according to an embodiment of the present invention;

4 is a syntax for partition notification in an ESG initial container according to an embodiment of the present invention;

5 is an operation flowchart of a DVB-H receiving terminal when the validity period rule according to the first embodiment of the present invention is applied;

6 is an operation flowchart of a DVB-H receiving terminal when a ServiceURI rule is applied according to a second embodiment of the present invention;

7 is a flowchart illustrating operations of a DVB-H receiving terminal when a datetime rule is applied according to a third embodiment of the present invention.

The present invention relates to Digital Video Broadcasting-Hand Held (DVB-H), and more particularly, to a method for efficiently receiving Electronic Service Guide (ESG) data and a DVB-H receiving terminal therefor.

DVB-H is a technical standard established to improve terrestrial digital television (DTV) reception on the move in Europe, where H stands for 'Handheld'. It implements mobile multimedia broadcasting that provides high quality voice and video service anytime and anywhere while driving or walking.

The service model using the DVB-H has the following configuration. First, the transmitting end is composed of a network in which a broadcaster and a communication operator interact with each other according to the DVB-UMTS standard, and the broadcaster delivers the compressed data to the terminal through the DVB-H transmission method based on the DVB-AVC standard. Then, the terminal again communicates with the mobile communication provider in a communication standard such as DVB-UMTS / GSM, and delivers the receiving side information in real time to the broadcasting company through the communication network.

Meanwhile, broadcasting-related information is mostly included in an electronic service guide (ESG) in DVB-H, and users can select TV channels and radio channels of interest or items to download through ESG data. have. The ESG also provides the terminal with the information to connect to a specific IP stream in the DVB-H Transport Stream. The processing of ESG data is divided into three processes as follows.

Specifically, ESG bootstrapping process, which represents a process of knowing what ESG data that a terminal can receive and how to obtain them, and ESG acquisition, which is a process of collecting and processing ESG data by the terminal. It is divided into three processes: an acquisition process and an ESG update process in which the terminal restores the latest version of ESG data.

The DVB-H ESG standard supports single stream and multiple stream modes in ESG data transmission. Accordingly, the DVB-H ESG standard defines a session partitioning rule structure for transmitting ESG data by applying a rule to each session in a multiple stream mode. However, since there is no detailed guideline for receiving ESG data according to the session partitioning rule, the DVB-H receiving terminal may cause confusion when receiving the ESG data to which the session partitioning rule is applied.

As described above, the DVB-H ESG standard defines a session partitioning rule structure that can be used by applying a rule to a session when ESG data is transmitted in a multiple stream mode. However, in the DVB-H receiving terminal that actually receives the ESG data to which the session partitioning rule is applied, there is a part that may cause confusion due to lack of guidelines for each rule. In particular, as the amount of ESG data increases, the data processing time of the DVB-H receiving terminal becomes longer. Therefore, it is necessary to establish the operation according to the session partitioning rule.

Accordingly, the present invention provides a method for receiving ESG data according to the session partitioning rule and DVB-H reception for the same to present the operation criteria in the DVB-H receiving terminal according to the session partitioning rule upon receiving the ESG data to which the session partitioning rule is applied. Provide a terminal.

The present invention also provides a method for receiving ESG data according to a session partitioning rule for minimizing confusion that may occur when receiving ESG data to which the session partitioning rule is applied and a DVB-H receiving terminal therefor.

According to the present invention for achieving the above-described aspect, in the method for receiving ESG data according to the session partitioning rule in the DVB-H receiving terminal, whether the partitioning rule is applied to each ESG data session received from the DVB-H transmitting server in the multiple stream mode. And determining the type of rule applied to each session when the partitioning rule is applied, and obtaining ESG data from each session based on the determined rule. It features.

In addition, the present invention is a DVB-H receiving terminal for receiving ESG data according to the session partitioning rule, the digital broadcast receiving unit for receiving each ESG data session from the DVB-H transmission server in the multiple stream mode, and the digital broadcast receiving unit It is determined whether or not the partitioning rule is applied to each session received through the determination. If the partitioning rule is applied as a result of the determination, the type of rules applied for each session is determined to determine the ESG data from each session based on the identified rule. Characterized in that it comprises a control unit to obtain.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible. Specific details are set forth in the following description, which is provided to aid a more general understanding of the invention. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The present invention provides a method for efficiently receiving ESG data for DVB-H broadcasting service in a DVB-H receiving terminal. To this end, in the present invention, when receiving the ESG data to which the session partitioning rule is applied in the multistream mode, the present invention grasps the rule applied to each session, and performs the broadcasting service on each session carrying the actual ESG data according to the rule. By classifying, the corresponding ESG data is obtained from the session and stored. As described above, since the present invention can efficiently receive ESG data by providing detailed guidelines for receiving ESG data according to the session partitioning rule, the reception method in the DVB-H receiving terminal is greatly improved.

After explaining the ESG transmission structure in DVB-H for convenience of explanation, the operation in the DVB-H receiving terminal according to the ESG data reception to which the session partitioning rule according to the preferred embodiments of the present invention is applied will be described. do.

First, by receiving an ESG stream, a DVB-H receiving terminal acquires information necessary for receiving a service provided by a DVB-H transmitting server, that is, a service provider, and when the user selects a specific service, The obtained information is used to access a data stream through which a service is transmitted and then receive data. Information for the DVB-H receiving terminal to access the service data stream is transmitted through the ESG fragment.

The ESG data model is included in one container, which is bundled several by each fragment, and the container is regarded as one object in the FLUTE session and transmitted.

First, referring to the case of the ESG Single Stream Transport mode, the ESG container is transmitted in a single FLUTE session as shown in FIG. 1. This session can be found through the ESG Access Descriptor transmitted in the ESG Bootstrap FLUTE Session.

In the ESG multiple stream transport mode, the ESG container is transmitted through three or more sessions as shown in FIG. 2. An ESG bootstrap session refers to an ESG Announcement Carousel FLUTE session, where the actual ESG containers inform the number of sessions and session information.

Referring to FIG. 2, the DVB-H transmitting server informs the DVB-H receiving terminal of channel information of the ESG bootstrap session, that is, a path, for transmission of the ESG. Then, when the terminal accesses the channel according to the channel information, the bootstrap information is received, which is composed of ESG Provider Descriptor and ESG Access Descriptor. In ESG provider information, relevant information such as ID, name, logo of ESG provider is transmitted, and in ESG access information, information of announcement carousel of ESG and actual number of IP sessions in which ESG data is transmitted. And address information are transmitted.

In the announcement carousel of ESG, ESG Init Container and ESG Index Container are transmitted. The ESG Init Container includes a decoder option for decrypting ESG data, a partition declaration, an index list, and an index structure. Partition Declaration includes separation criteria information and channel information of each session when ESG data is transmitted to a plurality of sessions, and an index list and an index structure include fragments of ESGs transmitted. And mapping information between each container are included. The ESG FLUTE session in FIG. 1 and FIG. 2 means an ESG data session.

Such ESG data has information on a broadcast service, and is transmitted to a DVB-H receiving terminal using a separate IP (Internet Protocol) stream at a separate time from the actual data stream. Accordingly, the DVB-H transmitting server can use the ESG model to provide information before the service is transmitted, which the user must know before receiving the service. By receiving the ESG model, the DVB-H receiving terminal acquires information necessary for receiving a service provided by the DVB-H transmitting server, and when the user selects a specific service, the DVB-H receiving terminal acquires the information. The data is used to access the data stream through which the service is transmitted and then receive the data.

In the following description, the embodiments of the present invention are described separately as follows. In the first embodiment of the present invention, a DVB-H receiving terminal acquires ESG data by identifying a valid period designated for each session in which ESG data is carried. In the second embodiment of the present invention, a DVB-H receiving terminal acquires ESG data for each service by grasping a URI of a service specified in a session in which ESG data is carried. In the third embodiment of the present invention, the DVB-H receiving terminal is configured to identify a datetime set in a session in which ESG data is carried and update the ESG data obtained from the session at the datetime.

Components and operations of the DVB-H receiving terminal for operating as described above will be described with reference to FIG. 3. Referring to FIG. 3, the DVB-H receiving terminal includes a control unit 10, a key input unit 20, a display unit 30, a memory 40, and a digital broadcast receiving unit 50.

First, the digital broadcast receiver 50 receives a transport stream from a service provider, that is, a DVB-H transmission server through a DVB-H network, and delivers the transport stream to the controller 10. In this case, the operation of demultiplexing the transport packet and parsing the video and audio data through a decoding process may be implemented in the controller 10. Since the operation in each component implemented internally is obvious to those skilled in the art, The description will be omitted.

On the other hand, the controller 10 performs voice signal and data processing according to a protocol for wireless Internet access and digital broadcasting, and controls each component of the DVB-H receiving terminal. In particular, when the broadcast service through the key input unit 20 is executed by the user, the controller 10 according to the present invention receives the ESG bootstrap session through the digital broadcast receiver 50. Upon receiving the ESG bootstrap session, the controller 10 analyzes the ESG bootstrap session and finds the corresponding session in the single stream mode and receives all the ESG data. In contrast, in the multiple stream mode, the controller 10 decodes the announcement carousel. Specifically, the start of the ESG data transmission starts with receiving the ESG bootstrap session, which includes the ESG Provider Descriptor and the ESG Access Descriptor. Among them, the ESG access information includes the announcement carousel session information. When the announcement container receives the initial container and receives the initial container, the initial container contains partition notification information. In the present invention, by checking the partition notification information, the control unit 10 can grasp the rules applied to each session for transmitting the ESG actual data.

For example, the controller 10 determines a rule applied to each session according to one of a predetermined validity period, a service URI (hereinafter, ServiceURI), and a data time or a combination of the rules. Controls the operation of acquiring ESG data from the corresponding data session and storing it in the memory 40 according to the rule. Accordingly, the controller 10 displays the channel list on the display unit 30 based on the currently acquired ESG data, and stores the ESG data to be applied to a predetermined date time in a separate memory 40 area.

Accordingly, the controller 10 receives a user's key input from the key input unit 20 to set a channel, and accordingly controls the display unit 30 to provide a broadcast service according to the user's key input.

The display unit 30 receives and displays display data on key input data input from the key input unit 20 under the control of the controller 10, or visually knows the state in setting or driving a function required by the user. To help. The display unit 30 displays the DVB-H broadcast service under the control of the control unit 10.

The memory 40 stores information related to overall functions of the DVB-H receiving terminal and also stores information related to providing a broadcast service, for example, ESG data. In addition, a separate area is allocated to the memory 40 for storing ESG data to be applied to the datetime specified by the DVB-H transmission server side. That is, the ESG data stored in the separate storage space is updated to the memory area in which the existing ESG data is stored, although the specified data time must be reached.

Hereinafter, an ESG data reception operation to which a session partitioning rule is applied in a DVB-H reception terminal having the above configuration will be described. At this time, the DVB-H receiving terminal acquires ESG data based on a partition declaration defined as shown in FIG. 4.

4 illustrates the syntax for partition notification in an ESG initial container. Referring to FIG. 4, the overlapping field indicated by the reference numeral 100 is composed of 1 bit, and '1' is set when the validity period rule is applied to the session. Otherwise, '0' is set. Is set. Field_length [k] indicated by 110 is 4 bytes, and is a field in which a length value of a field indicating a specific rule is set. If the value of field_length [k] 110 is variable, for example, having a value of '0x00', the length of the actual field is set to the length [i] [k] value, which is a field indicated by reference numeral 120.

Meanwhile, in order to determine whether the rule is applied for each session, if there is a session to which the rule is not applied even in one of the multi-sessions currently transmitted, field_length [k] (110) and length [i] [k] are used. You can set it to 0 unconditionally. In this case, the DVB-H receiving terminal can easily know that the rule is not applied to the corresponding session if the length [i] [k] value is '0' without having to determine the additional condition. In other words, assigning the length [i] [k] value to '0' means that the length of the field indicating the specific rule is 0. Therefore, when the DVB-H receiving terminal receives the session, the specific rule is not applied to the session. It can be recognized that it is not.

In contrast, when the value of the field_length [k] 110 is fixed, for example, if the value has a value other than '0x00', it is determined whether a specific rule is applied in each session according to the overlapping field 100 value. Then, according to the value set in the overlapping field 100, it is determined whether or not to activate the valid period field in which time information about the valid period of the ESG data indicated by reference numeral 130 is set. In detail, the start_field_value in which the start time of the valid period field 130 is set and the end_field_value in which the end scheduled time is set together or only the end_field_value are set according to the overlapping field 100 value. The DVB-H receiving terminal compares the start_field_value and the end_field_value to determine whether the corresponding rule is applied.

For example, when '1' is set in the overlapping field 100, the DVB-H receiving terminal compares the start_field_value of the current session with the end_field_value of the current session, which is automatically inferred from the end_field_value of the previous session, and determines whether it is the same. When '0' is set in the overlapping field 100, it is determined whether the start_field_value and the end_field_value of the current session are the same to determine whether to apply a specific rule in the corresponding session.

In addition, another embodiment in the case where the field_length [k] 110 value, which is a length value of a field representing a specific rule, is fixed, regardless of the relationship with the previous session, that is, regardless of the value of the overlapping field 100 Each start_field_value and end_field_value are assigned to specific bit strings promised to each other so that the DVB-H receiving terminal can determine whether to use a corresponding rule in a corresponding session. For example, if there is a number of Hour rule and a ServiceURI rule as in the current DVB-CBMS phaseI ESG spec, if only the validity rule is used in a particular IP stream, then the session is in full range in terms of ServiceURI. If the ServiceURI of the service is used, and if only the ServiceURI rule is used, it is as if the session includes the full time service related to the ESG in terms of expiration date. At this time, a semantic minimum value that a ServiceURI can have is assigned to start_field_value, and a semantic maximum value that a ServiceURI can have is assigned to a specific bit string. The minimum value at this time may be '0x00' or 'a' in the case of a string. Also, the maximum value can be '0xFF' or 'z' if it is a string. The values assigned to the minimum and maximum values at this time are not the actual minimum and maximum values delivered in the session, but represent the minimum value of the mathematical meaning that the data type of the rule can have and the maximum value of infinity. It is a specific bit string. That is, even if the corresponding ESG has a week of service information, the maximum value is used in the same manner as the one-month ESG. In this embodiment, bit strings representing different minimum and maximum values for each rule or each datatype should be promised in advance.

Alternatively, start_field_value and end_field_value may be allocated to a specific bit string regardless of whether the length of a field representing a specific rule is variable or fixed. To this end, as in the above-described embodiment, a specific bit string must be promised between the terminal and the network in advance. For example, if there is a validity rule and a ServiceURI rule as in the current DVB-CBMS phaseI ESG spec, if only the validity rule is used in a particular IP stream, the entire range of ServiceURIs is used in that session in terms of ServiceURI. Similarly, if only a ServiceURI rule is used, the session is equivalent to including the full-time service associated with that ESG in terms of expiration date. At this time, a semantic minimum value that a ServiceURI can have is assigned to start_field_value, and a semantic maximum value that a ServiceURI can have is assigned to a specific bit string. The minimum value at this time may be '0x00' or 'a' in the case of a string. Also, the maximum value may be '0xFF' or 'z' in the case of a string. The values assigned to the minimum and maximum values at this time are not the actual minimum and maximum values delivered in the session, but represent the minimum value of the mathematical meaning that the data type of the rule can have and the maximum value of infinity. It is a specific bit string. That is, even if the corresponding ESG has a week of service information, the maximum value is used in the same manner as the one-month ESG. In this embodiment, bit strings representing different minimum and maximum values for each rule or each data type must be promised in advance.

In the DVB-H receiving terminal, for example, a rule applied to each session may be used to process ESG data when a combination of validity period, ServiceURI, and datetime are applied, or a specific rule may not be applied to a specific session. In this way, it is determined whether a specific rule is applied to each session.

As such, when receiving a session to which a specific rule is applied, the DVB-H receiving terminal determines the type of the rule actually applied by looking at the field_identifier [k] field 105 indicated by reference numeral 105. The type of rule according to the value set in the field_identifier [k] field 105 may be represented as shown in Table 1 below.

Table 1 shows the types of rules defined in the DVB-H ESG standard, and a desired partitioning rule can be applied by changing values set in the field_identifier [k] field 105.

Hereinafter, the operation of receiving ESG data to which the session partitioning rule is applied in the DVB-H receiving terminal will be described based on the partition notification as shown in FIG. 4.

First, in the first embodiment of the present invention, a process of acquiring the ESG data by identifying a valid period designated for each session in which the DVB-H receiving terminal carries ESG data will be described with reference to FIG. 5. 5 is a flowchart illustrating operations of a DVB-H receiving terminal when the validity period rule according to the first embodiment of the present invention is applied.

Referring to FIG. 5, the DVB-H receiving terminal first receives an ESG bootstrap session in step 200 when a broadcast service is executed by a user. Upon receiving the ESG bootstrap session, the DVB-H receiving terminal analyzes the ESG bootstrap session to determine whether the stream is a multiple stream mode in step 205. If it is not in the multiple stream mode, the terminal determines the single stream mode in step 210 and finds the corresponding session to receive all the ESG data. In contrast, in the multiple stream mode, the terminal analyzes the partitioning rule in step 215. Specifically, the start of the ESG data transmission starts with receiving the ESG bootstrap session, which includes the ESG Provider Descriptor and the ESG Access Descriptor. Among them, the ESG access information includes the announcement carousel session information. When the announcement container receives the initial container and receives the initial container, the initial container contains partition notification information. In the present invention, by using the partition notification information, the UE can grasp the rule applied to each session for transmitting the ESG actual data.

In step 215, the partitioning rule analysis is performed, and the DVB-H receiving terminal determines whether the validity period rule is applied. At this time, the DVB-H receiving terminal recognizes that the valid period rule is applied when the first value '0x00' in Table 1 is set in the field_identifier [k] field 105 of FIG. 4. FIG. 5 sets a case in which the data processing process is applied when the validity period rule is applied, therefore, it is assumed that the validity period rule is already applied. That is, it is determined through the partitioning rule analysis process that the validity period rule is applied.

By analyzing the partition notification as described above, the DVB-H receiving terminal can obtain information about each session. Accordingly, the DVB-H receiving terminal finds each session by determining whether there is a session to receive in step 220. If there is no more session to receive, the DVB-H receiving terminal proceeds to step 225 and forms and displays a channel list based on the ESG data obtained through the sessions received so far.

In contrast, if there is a session to be received in step 220, the DVB-H receiving terminal proceeds to step 230 and determines whether the value of the overlapping field 100 is 1 in the partition notification as shown in FIG. As a result of determination, when the value of the overlapping field 100 is not 1, the DVB-H receiving terminal receives data in the order of shortest end time in step 235. That is, the DVB-H receiving terminal acquires ESG data by first accessing the session in descending order of the end_field_value indicating the end time of the validity period field 130 in order of decreasing end_field_value.

If the value of the overlapping field 100 is 1, the DVB-H receiving terminal receives the ESG data in the order of shortest starting time in step 240. That is, the DVB-H receiving terminal acquires ESG data by first grasping the start_field_value indicating the start time of the validity period field 130 and accessing the session first in order of decreasing start_field_value.

In step 245, the DVB-H receiving terminal determines whether the scheduled end time is within one week. This is to receive only the optimal data necessary for the broadcast service and show it to the user first. Accordingly, if the scheduled end time is more than one week, the DVB-H receiving terminal displays the channel list based on the ESG data acquired once in step 250 and then processes the receiving ESG data as a background task. That is, in order to minimize the start time of the broadcast service, that is, to minimize the time that the user waits until the start of the broadcast service, the terminal receives a background job when receiving data for a session after a predetermined period, for example, one week or more. Process. Here, in the embodiment of the present invention, the optimal data required for providing the broadcast service is set as one week, but the reference time may be differently determined according to the DVB-H receiving terminal.

In contrast, if the scheduled end time is less than one week in step 245, the DVB-H receiving terminal stores data based on the union format in step 235, and then returns to step 220 to determine whether there are more sessions to receive. The operation accordingly is the same as described above. Here, a process of storing data based on the union type will be described in detail.

The DVB-H receiving terminal may reconstruct the union of the two fragment data in the following order when there is already information that matches the ID with the ESG fragment data received in the new session.

First, when the fragment to be stored and the ID of the pre-stored fragment are matched, the respective versions are compared and they are not stored when the version of the fragment to be stored is lower.

Second, if the version of the fragment you want to save is higher, delete the existing fragment and replace it with a new one.

Third, if two fragment versions are the same, the element and attribute units of the fragment are compared and the corresponding data is stored when there is no existing element data and attribute data. That is, the union of two fragments is constituted.

In contrast, when two fragment versions are the same, the rule used in each session has a profile form in which one fragment is divided and transmitted, and when the fragments are transmitted in the profile form, a union is configured as in the above. Otherwise, the same fragment that is newly transmitted is ignored.

As such, by acquiring the ESG data according to the validity period rule according to the first embodiment of the present invention, the DVB-H receiving terminal can preferentially obtain only the optimal data necessary for the broadcast service, thereby greatly improving the receiving method. have.

Meanwhile, the second embodiment of the present invention will be described with reference to FIG. 6 a process in which a DVB-H receiving terminal acquires ESG data for each service by identifying a ServiceURI specified in a session in which ESG data is carried. 6 is a flowchart illustrating operations of a DVB-H receiving terminal when a ServiceURI rule is applied according to a second embodiment of the present invention.

Operations in steps 300 to 315 of FIG. 6 are the same as steps 200 to 215 of FIG. 5, and thus a detailed description thereof will be omitted.

However, even when the partitioning rule analysis is performed in step 315, the DVB-H receiving terminal determines whether the ServiceURI rule is applied, unlike in step 215. Accordingly, the DVB-H receiving terminal recognizes that the ServiceURI rule is applied when the second value '0x01' in Table 1 is set in the field_identifier [k] field 105 of FIG. 4. Of course, FIG. 6 also assumes that the ServiceURI rule is applied to explain the data processing process when the ServiceURI rule is applied.

If the ServiceURI rule is applied, the DVB-H receiving terminal determines whether there is more session to receive in step 320. If there is a session to be received, the DVB-H receiving terminal proceeds to step 325 and receives and stores ESG data in a session for each ServiceURI. Then, the DVB-H receiving terminal proceeds to step 330 and stores data based on the union type, and returns to step 320 to determine whether there are more sessions to receive. If there are no more sessions to receive, the process proceeds to step 335 and displays a channel list based on the acquired ESG data.

As described above, when receiving a session to which the ServiceURI rule is applied according to the second embodiment of the present invention, since the DVB-H receiving terminal requires data of all URIs to perform a broadcast service, all the sessions are received.

Meanwhile, according to the third embodiment of the present invention, the DVB-H receiving terminal identifies a datetime set in a session in which ESG data is carried and updates the ESG data acquired from the session at the datetime. It demonstrates with reference to FIG. 7 is a flowchart illustrating operations of a DVB-H receiving terminal when a datetime rule is applied according to a third embodiment of the present invention.

Steps 400 to 415 of FIG. 7 are the same as those of steps 200 to 215 of FIG. 5. However, in step 415 of FIG. 7, the DVB-H receiving terminal analyzes the partitioning rule to determine whether the datetime rule is applied. This datetime rule is not defined in the DVB-H ESG standard, but the present invention further defines a datetime as a rule that can be used later. Accordingly, the date time may be designated as one of the third values '0x02 to 0xEF' in Table 1 above.

As a result of analyzing the partitioning rule, when the datetime rule is recognized, the DVB-H receiving terminal determines whether there is a session to receive in step 420, and determines whether the datetime value is applied to the corresponding session in step 430. If it is determined that the session is not the date time value is applied to the DVB-H receiving terminal proceeds to step 435 to immediately access the current session to receive and store the ESG data. In contrast, in the case of the session to which the datetime value is applied, the DVB-H receiving terminal proceeds to step 440 to determine whether the datetime value is the present time. If it is determined in step 440 that the current time is not the current time, the current session is regarded as an unnecessary session, and the process returns to step 420 to determine whether there are more sessions to receive in order to receive the next session. The data time rule means that the data of the session to which the rule is applied should be applied to the DVB-H receiving terminal at the exact time designated by the date time. Therefore, if the time already specified is a time after the current time, it means that the time to apply to the DVB-H receiving terminal is past, so that ESG data is not received in the current session.

On the contrary, if the date time is the current time after step 440, the DVB-H receiving terminal proceeds to step 445 to store the ESG data in a separate storage space. This is because even if the ESG data is received in advance, the DVB-H receiving terminal does not apply to the application program but performs the update operation only when the time is specified in the date time. If there are no more sessions to receive after the above process, the DVB-H receiving terminal proceeds to step 425 and forms and displays a channel list based on the ESG data acquired to date.

As described above, in the third embodiment of the present invention, by receiving the ESG data to which the datetime rule is applied, the service provider has an advantage in that all DVB-H receiving terminals can designate desired time and desired ESG data and update them at once.

In the foregoing description, a case where one partitioning rule is applied to one session is described. However, at least one rule may be applied to each session in combination. The operation process in the DVB-H receiving terminal when applying the complex rule may be performed as follows.

A complex rule that can be defined in the current standard is a combination of a valid time and a ServiceURI, and the operation in the DVB-H receiving terminal according to this combination may be performed in the same manner as in FIG. 5 described above. That is, since all data corresponding to all ServiceURIs must be received, the data need only be operated in a flow considering only the valid time rule, and the ServiceURI does not need to be considered separately.

On the other hand, it can be considered that a combination of the two rules of expiration date and date time is applied. In this case, the DVB-H receiving terminal first determines whether there is a session to which the datetime rule is applied. Subsequently, the DVB-H receiving terminal stores the ESG data of the session to which the data time rule is applied in a separate space in advance and updates when the time specified by the data time is reached. The update at this time is made based on the above-described union method. However, in the case of the validity period and the datetime rule, it is preferable not to apply to one session at the same time due to the nature of the rule, and it is more preferable to apply one of the two together with the other ServiceURI rule.

Accordingly, when the ServiceURI and the datetime rule are applied simultaneously, the DVB-H receiving terminal first identifies only the sessions to which the datetime rule is applied, acquires ESG data from the sessions, and stores them in a separate storage space. It will be updated at the time specified in the datetime.

As described above, the present invention can efficiently receive the ESG data by providing detailed guidelines for receiving ESG data according to the session partitioning rule, thereby greatly improving the reception method in the DVB-H receiving terminal.

According to the present invention as described above, by providing a guideline for reception at the DVB-H receiving terminal according to the session partitioning rule in the DVB-H broadcast service, even if the partitioning rule is present as one or two complex rules, DVB- The confusion in implementing the receiving operation of the H receiving terminal can be minimized. In addition, the DVB-H receiving terminal according to the present invention can perform various functions using a partitioning rule.

Claims (17)

In the method for receiving ESG data according to the session partitioning rule in the DVB-H receiving terminal, Determining whether a partitioning rule is applied to each ESG data session received from the DVB-H transmitting server in the multiple stream mode; If the partitioning rule is applied, determining the type of rule applied to each session; ESG data receiving method according to the session partitioning rule, characterized in that for obtaining the ESG data from each session based on the identified rule. The method of claim 1, wherein the determining of whether the partitioning rule has been applied comprises: Receiving and decrypting the ESG bootstrap session; Determining the location of the ESG announcement carousel session from the ESG bootstrap session when the decryption result is in the ESG multiple stream mode; Identifying a Partition Declaration in an initial container of the ESG announcement carousel session at the identified location; ESG data receiving method according to the session partitioning rule characterized in that the process of analyzing the partitioning rule in the partition notice containing the information about each session. The method of claim 1, Checking the validity period of each session if the identified rule is a validity rule; Acquiring priority ESG data necessary for performing DVB-H broadcasting service in each session according to the result of the confirmation; ESG data receiving method according to the session partitioning rule, characterized in that it further comprises the step of configuring and displaying the channel list based on the obtained ESG data. The method of claim 3, wherein the acquiring ESG data receiving method according to the session partitioning rule characterized in that the process of acquiring the ESG data in the order that the end time of the valid period is short for each session. The method of claim 3, wherein the acquiring ESG data receiving method according to the session partitioning rule, characterized in that the process of acquiring the ESG data in the order of the start time of the valid period is short for each session. The method of claim 3, wherein And in the case of the session in which the scheduled end time of the valid period is after a predetermined period, processing as a background task to obtain ESG data. The method of claim 3, wherein the acquiring Comparing the ID of the fragment of the prestored ESG data with the ID of the fragment in the ESG data of the new session; If there is a matching ID, the process of comparing each version, If the version of the fragment for the new session is high, deleting the fragment of the pre-stored ESG data, and storing the ESG data of the new session ESG data receiving method according to the session partitioning rule. The method of claim 1, wherein the determining of whether the partitioning rule has been applied comprises: ESG data receiving method according to the session partitioning rule, characterized in that the process of analyzing the length of the field indicating the applied rule and the field indicating the length of the actual field. The method of claim 1, If the identified rule is a service URI rule, the method further includes acquiring ESG data for each service URI of the session. The method of claim 1, Checking the date time of each session when the identified rule is a date time rule; Determining whether the date time applied to each session is later than the current time according to the checking result; Judging the ESG data from the session with the date time applied after the current time; And storing the acquired ESG data in a separate storage area so that the existing stored ESG data is updated when the time specified in the date time arrives. . The method of claim 1, Determining whether the rules applied for each session are applied in combination; Determining the session to which the date time rule is applied when the date time rule and the service URI rule are applied; Acquiring and storing ESG data in all sessions to which the date time is not applied; Session partitioning further comprising the step of acquiring the ESG data from the session to which the date time rule is applied so that existing stored ESG data is updated when the time specified in the date time arrives, and storing the ESG data in a separate storage area. How to receive ESG data according to rule. In the DVB-H receiving terminal for receiving ESG data according to the session partitioning rule, A digital broadcast receiver for receiving each ESG data session from a DVB-H transmitter in multiple stream mode; It is determined whether or not the partitioning rule is applied to each session received through the digital broadcasting receiver. When the partitioning rule is applied, the type of rule applied to each session is determined to determine whether the partitioning rule is applied based on the identified rule. DVB-H receiving terminal for receiving ESG data according to the session partitioning rule, characterized in that it comprises a control unit for obtaining ESG data from the session. The method of claim 12, wherein the control unit Receives and decrypts an ESG bootstrap session, and if the decryption result is ESG multiple stream mode, locates an ESG announcement carousel session from the ESG bootstrap session, and at the identified location, the ESG announcement caption DVB- to receive the ESG data according to the session partitioning rule, characterized in that the partition declaration in the initial container of the Russell session is identified and the partitioning rule is analyzed in the partition announcement containing information about each session. H receiving terminal. The method of claim 12, wherein the control unit, If the identified rule is a validity period rule, the validity period of each session is checked, and session partitioning is performed by acquiring the essential ESG data necessary for performing DVB-H broadcast service in each session according to the result of the verification. DVB-H receiving terminal for receiving ESG data according to the rule. The method of claim 12, wherein the control unit, DVB-H receiving terminal for receiving the ESG data according to the session partitioning rule, characterized in that for acquiring the ESG data for each service URI of the session when the rule is a service URI rule. The method of claim 12, wherein the control unit, If the determined rule is a date time rule, it checks the date time of each session, and determines whether the date time applied to each session is after the current time according to the check result, and as a result, the date time after the current time is applied. According to the session partitioning rule, the ESG data is acquired from the session, and the obtained ESG data is stored in a separate storage area so that the ESG data previously stored in the memory is updated when the time specified in the date time arrives. DVB-H receiving terminal for receiving ESG data. The method of claim 12, wherein the control unit, It is determined whether the rules applied for each session are applied in combination, and when the date time rule and the service URI rule are applied, the session is applied to the date time rule. Acquire and store the data, and acquire ESG data from the session to which the date time rule is applied so that the previously stored ESG data is updated in the memory when the time designated by the date time arrives, and store the ESG data in a separate storage area of the memory. DVB-H receiving terminal for receiving ESG data according to the session partitioning rule characterized in.

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