CN102132560A - Method and apparatus for transmitting broadcast data, and method and apparatus for receiving broadcast data - Google Patents
Method and apparatus for transmitting broadcast data, and method and apparatus for receiving broadcast data Download PDFInfo
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- CN102132560A CN102132560A CN2009801326034A CN200980132603A CN102132560A CN 102132560 A CN102132560 A CN 102132560A CN 2009801326034 A CN2009801326034 A CN 2009801326034A CN 200980132603 A CN200980132603 A CN 200980132603A CN 102132560 A CN102132560 A CN 102132560A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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Abstract
A method and apparatus for receiving or transmitting broadcast data are provided. The broadcast data receiving method includes: acquiring first signaling information indicating an ensemble in which service composition information of a broadcasting service is transmitted, acquiring the service composition information based on the first signaling information, and providing the broadcasting service based on the service composition information and the first signaling information.
Description
Technical field
The method and apparatus consistent with the present invention relates to the method and apparatus that is used to send data and receives data, more particularly, relates to the method and apparatus that sends broadcast data and receive broadcast data.
Background technology
Because current information and development of Communication Technique provide broadcast service by various medium.Specifically, along with the development of mobile communication technology, use the broadcast service of portable terminal to arouse attention.
In addition, because more broadcasting station provides broadcast service, so the beholder can select from a greater variety of channels (channel), and therefore, more beholder has subscribed to broadcast service.
This development of portable terminal and the availability increase of various broadcasted contents help the development of broadcast system very much.
Summary of the invention
Technical scheme
Exemplary embodiment of the present provides a kind of method and apparatus of sending the method and apparatus of broadcast data and being used to receive broadcast data of being used to.
Description of drawings
By the detailed description that the reference accompanying drawing carries out exemplary embodiment of the present, above-mentioned and other aspects of the present invention will become apparent, wherein:
Fig. 1 is the block diagram of broadcast data transmitting apparatus according to an exemplary embodiment of the present invention;
Fig. 2 is the block diagram of broadcast-data receiving device according to an exemplary embodiment of the present invention;
Fig. 3 illustrates the grammer (syntax) of serving composition information according to an exemplary embodiment of the present invention;
Fig. 4 A illustrates the head of first signaling information according to an exemplary embodiment of the present invention;
Fig. 4 B illustrates the payload of first signaling information according to an exemplary embodiment of the present invention;
Fig. 5 illustrates according to an exemplary embodiment of the present invention from serving the information that the composition information and first signaling information obtain;
Fig. 6 illustrates according to an exemplary embodiment of the present invention by using service to form the tabulation of the broadcast service of information creating;
Fig. 7 illustrates the method that broadcast service is provided in the broadcast-data receiving device that shows according to an exemplary embodiment of the present invention in Fig. 2;
Fig. 8 illustrates the method that broadcast service is provided in the broadcast-data receiving device that shows of another exemplary embodiment according to the present invention in Fig. 2;
Fig. 9 illustrates the method that broadcast service is provided in the broadcast-data receiving device that shows of another exemplary embodiment according to the present invention in Fig. 2;
Figure 10 is the block diagram of the broadcast data transmitting apparatus of another exemplary embodiment according to the present invention;
Figure 11 is the block diagram of the broadcast-data receiving device of another exemplary embodiment according to the present invention;
Figure 12 illustrates the grammer of the main body of first signaling information according to an exemplary embodiment of the present invention;
Figure 13 illustrates the example of " FICdescriptor () " field when " label " field has value " 0x01 " according to an exemplary embodiment of the present invention;
Figure 14 illustrates the example of " FICdescriptor () " field when " label " field has value " 0x02 " according to an exemplary embodiment of the present invention;
Figure 15 illustrates the example of the configuration of signaling information channel and ensemble (ensemble) according to an exemplary embodiment of the present invention;
Figure 16 illustrates the example of the configuration of the signaling information channel of another exemplary embodiment according to the present invention and ensemble;
Figure 17 is the flow chart of broadcast data transmitting method according to an exemplary embodiment of the present invention;
Figure 18 is the flow chart of broadcast data receiving method according to an exemplary embodiment of the present invention;
Figure 19 is the flow chart of the broadcast data transmitting method of another exemplary embodiment according to the present invention;
Figure 20 is the flow chart of broadcast data receiving method according to an exemplary embodiment of the present invention.
Preferred forms
According to an aspect of the present invention, provide a kind of broadcast data transmitting method, described method comprises: generation will use the service of the broadcast service that at least one broadcast packet of sending by at least one channel provides to form information; Produce first signaling information, the indication of first signaling information will send the ensemble of service composition information; Send broadcast packet, service composition information and first signaling information.
Service composition information can comprise at least one that select from comprise following group: be used for broadcast service service identifier, expression broadcast service school genre information and about the supplier's of broadcast service information.
Broadcast data transmitting method also can comprise: for each ensemble produces second signaling information, described second signaling information will be essential at least one broadcast packet that sends in each ensemble for handling, wherein, described forwarding step also comprises: send second signaling information in the corresponding signal group.
First signaling information can comprise Internet protocol (IP) address that necessary second signaling information of broadcast service is provided.
First signaling information can comprise the map information between broadcast service and the ensemble, transmission is provided the broadcast packet of described broadcast service in described ensemble.
First signaling information can comprise the version information of service composition information.
The step that sends broadcast packet, service composition information and first signaling information can comprise: information is formed in the service that sends in by the ensemble of first signaling information indication, and sends first signaling information by fast information channel in dab receiver (FIC).
According to a further aspect in the invention, provide a kind of broadcast data transmitting method, described method comprises: obtain the emergence message by the preferential reception of broadcast-data receiving device; Produce signaling information, described signaling information comprises handling to be provided the broadcast packet information necessary of broadcast service and comprises emergence message; Send signaling information by FIC.
Emergence message can comprise at least one that select from the group that comprises following item: accident condition information, Weather information and the information of decoding about broadcast packet.
Emergence message can comprise at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
According to a further aspect in the invention, provide a kind of broadcast data receiving method, described method comprises: obtain first signaling information, the ensemble of information is formed in the service that described first signaling information indication sends broadcast service; Obtain service composition information based on first signaling information; Provide broadcast service based on service composition information and first signaling information, wherein, service composition information is the information of the composition of the broadcast service that provides about the broadcast packet that will use by at least one channel (frequency channel) transmission.
Service composition information can comprise at least one that select from comprise following group: be used for broadcast service service identifier, expression broadcast service school genre information and about the supplier's of broadcast service information.
Provide the step of broadcast service to comprise: the tabulation of the broadcast service that will provide is provided based on service composition information; The demonstration of the tabulation of control broadcast service; If selected one of broadcast service in the tabulation, then visit sends the ensemble of the broadcast packet of the broadcast service that selection is provided.
Provide the step of broadcast service also to comprise: obtain second signaling information from the ensemble of visit, described second signaling information comprises information necessary for the broadcast packet of broadcast service that provides selection for processing; Use second signaling information to handle the broadcast packet of the broadcast service that selection is provided.
First signaling information can comprise the IP address of second signaling information.
First signaling information can also comprise: broadcast service and transmission provide the map information between the ensemble of broadcast packet of described broadcast service.
First signaling information can also comprise the version information of service composition information.
The step of obtaining first signaling information can comprise: obtain first signaling information by FIC.
According to a further aspect in the invention, provide a kind of broadcast data receiving method, described method comprises: receive signaling information from FIC, described signaling information comprises the broadcast packet information necessary that the emergence message that will preferentially be received and processing provide broadcast service; Obtain emergence message from signaling information.
Emergence message can comprise at least one that select from comprise following group: accident condition information, Weather information and about the information of decoding broadcast packet.
Emergence message can comprise at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
According to a further aspect in the invention, provide a kind of broadcast data transmitting apparatus, described equipment comprises: service composition information generation unit, generation will use the service composition information of the broadcast service that the broadcast packet that sends by at least one channel provides; The signaling information generation unit produces first signaling information, and the indication of first signaling information will send the ensemble of service composition information; Transmitting element sends broadcast packet, service composition information and first signaling information.
According to a further aspect in the invention, provide a kind of broadcast data transmitting apparatus, described equipment comprises: information acquisition unit, obtain emergence message by the preferential reception of broadcast-data receiving device; The information generation unit produces signaling information, and described signaling information comprises handling to be provided the broadcast packet information necessary of broadcast service and comprise emergence message; Transmitting element sends signaling information by FIC.
According to a further aspect in the invention, provide a kind of broadcast-data receiving device, described equipment comprises: the signaling information acquiring unit, obtain first signaling information, and the ensemble of information is formed in the service that described first signaling information indication sends broadcast service; Information acquisition unit is formed in service, obtains service composition information based on first signaling information; Service provides the unit, provides broadcast service based on the service composition information and first signaling information, wherein, uses the broadcast packet that sends by at least one channel that broadcast service is provided.
According to a further aspect in the invention, a kind of broadcast-data receiving device is provided, described equipment comprises: the signaling information receiving element, receive signaling information from FIC, and described signaling information comprises the broadcast packet information necessary that the emergence message that will preferentially be received and processing provide broadcast service; The emergence message acquiring unit obtains emergence message from signaling information.
According to a further aspect in the invention, provide a kind of broadcast data transmitting apparatus, comprising: send first signaling information by fast information channel in dab receiver; Transmission comprises the main signal group of service composition information; Transmission comprises the secondary signal group of second signaling information and at least one broadcast packet, wherein, main signal group and secondary signal group are the data transmission unit according to the error coding dividing elements, wherein, first signaling information is included in main signal group's link, and wherein, service composition packets of information is provided by the information about the broadcast service that is provided by at least one broadcast packet.
Second signaling information can comprise one of the map of services table that is used to handle at least one broadcast packet and Internet protocol mapping table.
Fast information channel in dab receiver can be to be encoded as than main signal group and secondary signal group for the 3rd more strong ensemble of mistake.
According to a further aspect in the invention, provide a kind of broadcast data transmitting apparatus, described equipment comprises: main signal group's generation unit produces the main signal group who comprises service composition information; Secondary signal group's generation unit produces the secondary signal group who comprises second signaling information and at least one broadcast packet; Transmitting element, send first signaling information, main signal group and secondary signal group, wherein, main signal group and secondary signal group are the data transmission unit according to the error coding dividing elements, and wherein, service composition packets of information is provided by the information about the broadcast service that is provided by described at least one broadcast packet.
Transmitting element can send first signaling information by fast information channel in dab receiver.
Fast information channel in dab receiver can be to be encoded as than main signal group and secondary signal group for the 3rd more strong ensemble of mistake.
According to a further aspect in the invention, provide a kind of broadcast-data receiving device, described equipment comprises: obtain first signaling information, described first signaling information sends and is included in the main signal group's who comprises service composition information link by fast information channel in dab receiver; Obtain service composition information based on first signaling information; Provide broadcast service based on the service composition information and first signaling information, wherein, main signal group is the data transmission unit according to the error coding dividing elements, and wherein, service composition packets of information is provided by the information about the broadcast service that is provided by at least one broadcast packet that is included among the secondary signal group.
Can before the secondary signal group, visit the main signal group.
This method also can may further comprise the steps: use the service composition information of obtaining that the tabulation of broadcast service is provided; Receive the selection of broadcast service from the user; The broadcast service of selection is provided.
According to a further aspect in the invention, a kind of broadcast-data receiving device is provided, described equipment comprises: the signaling information acquiring unit, obtain first signaling information, and first signaling information sends and is included in the main signal group's who comprises service composition information link by fast information channel in dab receiver; Information acquisition unit is formed in service, obtains service composition information based on first signaling information; Broadcast service provides the unit, provide broadcast service based on the service composition information and first signaling information, wherein, main signal group is the data transmission unit according to the error coding dividing elements, and wherein, service composition packets of information is provided by the information about the broadcast service that is provided by at least one broadcast packet that is included among the secondary signal group.
Embodiment
The application requires in the 61/090th of submission on August 20th, 2008, No. 407 U.S. Provisional Applications and be submitted to the priority of the 10-2009-0057197 korean patent application of Korea S Department of Intellectual Property on June 25th, 2009, the open of above-mentioned application is completely integrated in this for reference by reference.
Hereinafter, describe exemplary embodiment of the present with reference to the accompanying drawings in detail.
Fig. 1 is the block diagram of broadcast data transmitting apparatus 100 according to an exemplary embodiment of the present invention.
Broadcast data transmitting apparatus 100 comprises service composition information generation unit 110, signaling information generation unit 120 and transmitting element 130.
Service composition information generation unit 110 produces the composition information that will use the broadcast service that the broadcast packet by at least one channel transmission provides.Service composition information can comprise about the information of the type of the broadcast service that will provide by at least one channel and the detailed description of broadcast service.In whole specification, channel is meant the channel by using vestigial sideband (VSB) to modulate.Can send many service composition information by a channel.Yet, hereinafter, for convenience of explanation, suppose to send a service composition information by a channel.The composition information of the broadcast service that will provide by the channel that carries described service composition information not only can be provided service composition information, and the composition information of the broadcast service that will provide by other channels can be provided.
Service composition information can comprise from comprise by select following the group at least one: be used to identify the service identifier of each broadcast service, the genre information of school (genre) of representing each broadcast service and the Short Description information of each broadcast service.Service composition information also can comprise broadcast service and map information between the IP address of broadcast packet of broadcast service is provided or broadcast service and and corresponding second signaling information of this broadcast service (following description) between map information.The above-mentioned of information only is the example of service composition information, and can be used as service composition information about any information of broadcast service and comprised.
Signaling information generation unit 120 produces first signaling information, and the indication of first signaling information will send the ensemble of service composition information.In whole specification, ensemble (ensemble) is meant the data transmission unit according to the error coding dividing elements.Can send at least one ensemble by the same frequency transmitting channel.First signaling information can be assigned with the identification number of the ensemble that sends service composition information, and therefore first signaling information can be indicated the ensemble that sends service composition information.Whether in addition, first signaling information can comprise the version information of service composition information, be updated with indication service composition information.
First signaling information can comprise the map information between broadcast service and the ensemble.In other words, first signaling information can comprise the information about the ensemble that each broadcast service is provided.
In addition, first signaling information can comprise the IP address with corresponding second signaling information of each broadcast service.
Signaling information generation unit 120 can also produce second signaling information.For each ensemble produces second signaling information, wherein, described second signaling information will be essential for the broadcast packet that sends in the ensemble for handling.The example of second signaling information can comprise IP mapping table (IMT), map of services table (SMT) etc.The description of the broadcast service that provides in the broadcast packet of ensemble and the IP address of broadcast packet can be provided second signaling information.
If the IP address of second signaling information is by broadcast data transmitting apparatus 100 and the pre-assigned IP of the broadcast-data receiving device address that describes below, then broadcast-data receiving device is known the IP address of second signaling information, so broadcast data transmitting apparatus 100 does not additionally send to broadcast-data receiving device with the IP address of second signaling information.
Yet if broadcast-data receiving device is not known the IP address of second signaling information, broadcast data transmitting apparatus 100 can send to broadcast-data receiving device with the IP address of second signaling information.Under latter instance, the IP address of second signaling information can be included at least one that select from the group that comprises the service composition information and first signaling information.For example, broadcast service identifier and and the IP address of corresponding second signaling information of this broadcast service identifier between map information can be included at least one that from following group, select, wherein, described group comprises the service composition information and first signaling information.Be meant second signaling information that is used to handle the broadcast service of representing by described broadcast service identifier with corresponding second signaling information of broadcast service identifier, in more detail, be meant second signaling information that is used to handle the broadcast packet that the respective broadcast service is provided.
Transmitting element 130 sends broadcast packet, service composition information and first signaling information.
Transmitting element 130 can send first signaling information by FIC.In whole specification, FIC is meant and compares for the more strong ensemble of error correction being encoded as than other ensembles.At least one FIC is included in each channel.
Transmitting element 130 sends service signal group information in by the ensemble of first signaling information indication, and sends broadcast packet in other ensembles.The ensemble that sends service composition information can only comprise service composition information or can comprise service composition information and broadcast packet.
Fig. 2 is the block diagram of broadcast-data receiving device 200 according to an exemplary embodiment of the present invention.
Broadcast-data receiving device 200 comprises that information acquisition unit 220 is formed in signaling information acquiring unit 210, service and service provides unit 230.
Signaling information acquiring unit 210 can obtain first signaling information, and wherein, the indication of first signaling information sends the ensemble of the service composition information of broadcast service.Service is formed packets of information and is drawn together information about the composition that uses all broadcast service that the broadcast packet that sends by at least one channel provides.Signaling information acquiring unit 210 can obtain first signaling information by FIC.
Service is formed information acquisition unit 220 and is obtained composition information based on first signaling information.Because first signaling information comprises the information about the ensemble that sends service composition information, therefore, information acquisition unit 220 is formed in service can obtain composition information from ensemble based on first signaling information.
Service provides unit 230 to provide the broadcast service of being selected by the user based on the service composition information and first signaling information.In order to make the user can easily select the broadcast service of expecting, service provides unit 230 can comprise list producing unit 231, control unit 232, addressed location 233, the second signaling information acquiring unit 234 and processing unit 235.
The tabulation that list producing unit 231 produces the broadcast service that will provide based on service composition information.Suppose to send a service composition information by a channel, list producing unit 231 uses at least one service composition information that sends by a plurality of channels respectively that the tabulation of the broadcast service that will be provided by broadcast-data receiving device 200 is provided.
The output of the tabulation of control unit 232 control broadcast service.Control unit 232 controls are by the tabulation of output device (such as display unit or loud speaker) output broadcast service.The user can select one of broadcast service in the tabulation of the broadcast service of exporting.
The second signaling information acquiring unit 234 obtains second signaling information from the ensemble of visit.Second signaling information is essential for handling for the broadcast packet that sends in the ensemble, and can comprise about information which broadcast service will be provided in ensemble and about the information of the IP address of broadcast packet that broadcast service is provided.
When broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 have been allocated the IP address of second signaling information in advance, the second signaling information acquiring unit 234 can obtain second signaling information by the broadcast packet with pre-assigned IP address in the described ensemble that obtains visit, and need not additional information.
Yet, when broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 were not also allocated the IP address of second signaling information in advance, the IP address of second signaling information can be included in from least one of the group selection that comprises the service composition information and first signaling information.In this case, the second signaling information acquiring unit 234 can be from obtaining the IP address of second signaling information from least one of following group selection, and wherein, described group comprises first signaling information and service composition information.
In the exemplary embodiment, list producing unit 231 and control unit 232 can be not included in the broadcast-data receiving device 200.Selectively, list producing unit 231 and control unit 232 can be included in the broadcast-data receiving device 200, and and if only if broadcast-data receiving device 200 during when beginning to operate, when the receiving area changes, when the user asks, when the version of service composition information changes and/or when broadcast-data receiving device 200 initialization, list producing unit 231 and control unit 232 can be operated.In a further exemplary embodiment, when broadcast-data receiving device 200 operations, list producing unit 231 and control unit 232 can use the service of previous reception to form information or the tabulation of broadcast service is provided first signaling information so that the user can select broadcast service.
Fig. 3 illustrates the grammer of serving composition information according to an exemplary embodiment of the present invention.Channel description list among Fig. 3 (CDT, Channel Description Table) is the example of service composition information.In addition, " channel (channel) " among Fig. 3 is different from " channel " that use in whole specification, and " channel " among Fig. 3 relates to the notion of broadcast service.
The type of " M1_info_type " field 310 expression data.In Fig. 3, " M1_info_type " field 310 has value " 0x02 ", and the field below " M1_info_type " field 310 relates to service composition information.
" channel_identifier " field 320 is used for the identification of broadcast service.
The type of " channel_type " field 330 expression broadcast service, the i.e. school of broadcast service.The school of broadcast service can be categorized as for example film, physical culture, drama, news, animation, woman/culture, baby/child, documentary film, education and amusement by different way.
Genre information also can be expressed as for example audio service, audio frequency and video (A/V) service, data, services etc.
The current state of " virtual_channel_status " field 340 expression broadcast service.For example, " virtual_channel_status " field 340 can represent that broadcast service is " activity " or " non-activity "." activity " state is meant the state that current broadcast service is available, and " non-activity " state is meant that current broadcast serves disabled state." non-activity " state also can refer to the state that all broadcast packets of broadcast service are not sent out.
In addition, " virtual_channel_status " field 340 can represent whether broadcast service " is hidden ".The state that broadcast service " is hidden " can refer to provide the broadcast packet of broadcast service to be sent out the state of but not seen by the user.
Whether the 350 expression respective broadcast services of " base_channel_indicator " field are relevant with other broadcast service.For example, suppose that broadcast data transmitting apparatus 100 provides all the elements of high-quality broadcast service, wherein, all the elements of described high-quality broadcast service are identical with all the elements of low quality broadcast service, and " base_channel_indicator " field 350 can represent that broadcast service is from the low quality broadcast service or from the high-quality broadcast service.In addition, " base_channel_indicator " field 350 can comprise the descriptor of the broadcast service relevant with other broadcast service.In this case, " base_channel_indicator " field 350 can comprise the identifier of high-quality (or low quality) broadcast service and the identifier that the ensemble of high-quality broadcast service (or low quality broadcast service) is provided.
" short_channel_description " field 360 can comprise the Short Description of broadcast service." short_channel_description " field 360 can comprise any information of describing broadcast service.For example, " short_channel_description " field 360 can comprise the information about the broadcast service supplier that the respective broadcast service is provided.
The detailed description of " channel_descriptor_loop " field 370 expression broadcast service.For example, the detailed genre information of broadcast service can be included in " channel_descriptor_loop " field 370.
Grammer among Fig. 3 only is the example of service composition information, and service composition information can also comprise the broadcast packet that broadcast service is provided the IP address, handle the IP address of necessary second signaling information of described broadcast packet or the identifier of the ensemble of broadcast service be provided.
Fig. 4 A and Fig. 4 B illustrate the grammer of first signaling information according to an exemplary embodiment of the present invention.
Fig. 4 A illustrates the head of first signaling information according to an exemplary embodiment of the present invention.
412 expressions of " transport_stream_id " field are by the identifier of the stream of channel transmission.
The version of " ESG_version " field 414 expression electronic service guidebooks (ESG) data.The ESG data are metadata of broadcast service.
The version of " IMT_version " field 416 expression IMT data.The IMT data can comprise the IP address of broadcast packet and about the map information between the information of the position of the broadcast packet in the ensemble.In other words, the position of IMT data representation broadcast packet in ensemble.
The version information of " CDT_version " field 418 expression channel description lists (CDT).
Fig. 4 B illustrates the payload of first signaling information according to an exemplary embodiment of the present invention.
" ensemble_id " field 422 is identifiers of ensemble.
Whether " primary_ensemble_indicator " field 424 expression corresponding signal groups are main signal groups.Main signal group is meant and is defined as ensemble accessed before other ensembles.Therefore, " primary_ensemble_indicator " field 424 can be indicated the ensemble that sends CDT.
Whether " SG_entry_point_indicator " field 426 expression service guides (SG) are included among the corresponding signal group.
The quantity of the broadcast service that " num_channels " field 428 expression provides by the corresponding signal group.
" channel_type " field 432 is meant the form that broadcast service is provided.For example, " channel_type " field 432 can represent that broadcast service is audio service, A/V service, data, services or emergency information service.
The state of " virtual_channel_status " field 434 expression broadcast service.For example, " virtual_channel_status " field 434 can represent that broadcast service is aforesaid " activity ", " non-activity " or " hiding " etc.
The main broadcast service of " primary_channel_indicator " field 436 expressions.For example, " primary_channel_indicator " field 436 can be provided by the broadcast service in the ensemble that will at first provide in a plurality of other broadcast service, and can indicate for example second signaling information.
" SP_indicator " field 438 expression provides respective broadcast to serve at least one whether encrypted or scrambling in the necessary assembly.
" major_channel_num " field 442 and " minor_channel_num " field 444 comprise the information that is used for the identification of broadcast service, and are classified according to preassigned.For example, can come " major_channel_num " field 442 is classified according to the ISP.For " major_channel_num " field 442, the broadcast service that is provided by the same services supplier can have identical value.In addition, can come " minor_channel_num " field 444 is classified according to the broadcast service that provides by the same services supplier.
According to an exemplary embodiment of the present, can two For circulations from first signaling information obtain about the information of which broadcast service is provided in each ensemble.
Fig. 5 illustrates according to an exemplary embodiment of the present from serving the information that the composition information and first signaling information obtain.The information of obtaining from service composition information and first signaling information comprises service identifier 510, IP address and ensemble identifier 530.
With reference to Fig. 5, service # 1 with in ensemble # 1 and ensemble # 3, provide and to have second signaling information of IP address 222.0.0.1 and 222.0.0.2 corresponding.In other words, in ensemble # 1 and ensemble # 3, send the broadcast packet that service # 1 is provided, and handle the broadcast packet that service # 1 is provided by second signaling information that use has IP address 222.0.0.1 and a 222.0.0.2.
Suppose that the user has asked service #1.Broadcast-data receiving device initial access ensemble # 1 to be obtaining the broadcast packet with IP address 222.0.0.1, and subsequently calling-on signal group # 3 to obtain broadcast packet with IP address 222.0.0.2.The broadcast packet that obtains comprises second signaling information, and broadcast-data receiving device can be by handling the IP address that second signaling information obtains the broadcast packet that service # 1 is provided.Subsequently, broadcast-data receiving device can provide service # 1 by selectively only handling the broadcast packet that service # 1 is provided.
Fig. 6 illustrates and uses service to form the tabulation of the broadcast service of information creating according to an exemplary embodiment of the present invention.
The tabulation of broadcast service comprises broadcast channel numbers 610, broadcast channel information 620, higher level's genre information 630 and subordinate's genre information 640.
In whole specification, it is different with the notion of physical channel to make the user can easily discern the notion of broadcast channel numbers 610 of broadcast service.Broadcast channel numbers 610 can have the form of " main broadcast channel number "-" secondary-broadcast channel number ".Here, " main broadcast channel number " can be used for identifying the broadcasting station (being the ISP) that broadcast service is provided, and " secondary-broadcast channel number " can be used for identifying the independent broadcast service that is provided by the same services supplier.In Fig. 6, " the main broadcast channel number " of the broadcast service that is provided by " broadcasting station A " is " 10 ", and " the main broadcast channel number " of the broadcast service that is provided by " broadcasting station D " is " 12 ".
In a further exemplary embodiment, broadcast channel numbers 610 can comprise individual channel number, and broadcast channel numbers 610 can be sent out.
Broadcast channel information 620 is descriptions of respective broadcast channels.Broadcast channel information 620 can comprise any information about broadcast channel.For example, broadcast channel information 620 brief information about the ISP of the broadcast service that provides by broadcast channel can be provided, about information of the school of the broadcast service that provides by described broadcast channel etc.
Higher level's school of the current broadcast service that provides of higher level's genre information 630 expressions.Can classify to higher level's school by different way according to embodiment.For example, higher level's school of broadcast service can be classified as drama, film, physical culture, news and metadata.
The sub-school of subordinate's genre information 640 expression broadcast service.Can based on subordinate's genre information 640 come more accurately to provide the indication broadcast service be about and so on information.In other words, higher level's genre information 630 can represent that broadcast service belongs to higher level's kind of a plurality of schools of one of them, and subordinate's genre information 640 can represent that broadcast service belongs to subordinate's kind of a plurality of schools of one of them.
Fig. 7 illustrates the method that broadcast service is provided according to an exemplary embodiment of the present invention in broadcast-data receiving device 200.
When the user begins to operate broadcast-data receiving device 200 or initialization broadcast-data receiving device 200, broadcast channel scanning beginning.Broadcast-data receiving device 200 can provide the tabulation of the broadcast channel that the user can use by the scanning broadcast channel.
Can scan broadcast channel according to two kinds of following methods.
At first, can use the service that is included among the main signal group 720 to form information 721 and scan broadcast channel.
Broadcast-data receiving device 200 obtains first signaling information 710 from FIC.First signaling information 710 comprises the broadcast packet information necessary that processing sends at least one ensemble of ensemble 730-1, ensemble 730-2, ensemble 730-N.
With reference to Fig. 7, first signaling information 710 can comprise service identifier, IP information, version information, genre information and ensemble identifier.
The IP information representation provides the IP address with necessary second signaling information of the corresponding broadcast service of service identifier.
Version information is represented the version of second signaling information.
Genre information is represented the school with the corresponding broadcast service of service identifier.
The ensemble identifier represents to provide the ensemble with the corresponding broadcast service of service identifier.
Although not shown in Figure 7, first signaling information 710 can comprise that also indication sends the main signal group's 720 of service composition information 721 information.In addition, the IP address of second signaling information and genre information can be included in the service composition information 721 specially, and may be not included in first signaling information 710.
Next, broadcast-data receiving device 200 visits the main signal group 720 who sends service composition information 721 based on first signaling information 710, and obtains service composition information 721 from the main signal group 720 of visit.
200 pairs of all channels of broadcast-data receiving device repeat above-mentioned processing and form information 721 to obtain all services.
Subsequently, broadcast-data receiving device 200 is created the tabulation of broadcast channel by handling service composition information 721, and the tabulation of broadcast channel is offered the user.
Secondly, can scan broadcast channel, and need not to use service composition information 721.
Broadcast-data receiving device 200 receives first signaling information 710 from FIC.First signaling information 710 comprises the IP address of second signaling information.
Broadcast-data receiving device 200 uses the IP address of second signaling information to come from each ensemble 730-1,730-2 ... 730-N obtains second signaling information.Second signaling information comprises broadcast packet information necessary that processing sends and about the information of the broadcast service that will be provided by described corresponding signal group in the corresponding signal group.
Broadcast-data receiving device 200 is created the tabulation of broadcast channel by handling second signaling information, and subsequently the tabulation of described broadcast channel is offered the user.
Because broadcast-data receiving device 200 obtains second signaling information by visiting each ensemble, therefore a kind of method in back can take a long time.Yet in last method, broadcast-data receiving device 200 can scan broadcast channel only to obtain service composition information 721 by visiting an ensemble, and therefore scanning broadcast channel spends the less time.
In case scanning by the above-mentioned broadcast channel of having finished dealing with, the tabulation of the broadcast service of creating just can be provided for the user, unless there are abnormal conditions, for example when service composition information 721 is updated, when having user's request, perhaps when broadcast-data receiving device 200 is initialised.Under all abnormal conditions, carry out broadcast channel scanning once more.
When the tabulation of broadcast service was provided, the user selected to be included in one of broadcast service in this tabulation.If the user does not select one of broadcast service, then can be selected with the corresponding broadcast service of the broadcast channel of nearest selection.Selectively, can be selected with the corresponding broadcast service of the broadcast channel that is set to give tacit consent to.
When the user selected broadcast service, broadcast-data receiving device 200 used first signaling information 710 to visit the ensemble of the broadcast service that selection is provided.As mentioned above, first signaling information 710 comprises that indication sends the information of the ensemble of each broadcast service.
Broadcast-data receiving device 200 obtains second signaling information from the ensemble of visit.Second signaling information selectively has by broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 both pre-assigned IP addresses.When second signaling information comprised by broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 both pre-assigned IP addresses, broadcast-data receiving device 200 obtained the broadcast packet with pre-assigned IP address from the ensemble of visit.When second signaling information does not comprise pre-assigned IP address, form information 721 or first signaling information 710 is discerned the IP address of second signaling information based on the service among the main signal group 720 of being included in, and the broadcast packet with IP address of identification is acquired.
When second signaling information had been acquired, broadcast-data receiving device 200 obtained the IP address of the broadcast packet that the broadcast service of being selected by the user is provided from second signaling information.As mentioned above, second signaling information can comprise the IP address of the broadcast packet that each broadcast service is provided.
At last, broadcast-data receiving device 200 provides the broadcast service of being selected by the user by handling the broadcast packet that obtains from the ensemble of visit.
Suppose that in Fig. 7 user has selected the broadcast service # 1 that is represented by service identifier # 1.
With reference to first signaling information 710, in by the ensemble # 1 of ensemble identifier # 1 indication, send the broadcast packet that broadcast service # 1 is provided.Therefore, broadcast-data receiving device 200 obtains second signaling information by calling-on signal group #1 (730-1).Discern the IP address of the broadcast packet that broadcast service # 1 is provided from second signaling information that obtains, and obtain broadcast packet by the IP address of using identification.
Next, the broadcast packet that obtains by processing of broadcast-data receiving device 200 provides broadcast service # 1.
Fig. 8 illustrates the method that broadcast service is provided of another exemplary embodiment according to the present invention in broadcast-data receiving device 200.
The situation that the broadcast packet that Fig. 8 illustrates provides broadcast service sends at least in two ensembles of ensemble 830-1, ensemble 830-2, ensemble 830-N.
Suppose that also in Fig. 8 user has selected the broadcast service # 1 that is represented by service identifier # 1.
With reference to first signaling information 810, provide the broadcast packet of broadcast service # 1 in ensemble # 1 and ensemble # 2, to send.
In another exemplary embodiment of the present invention, can provide broadcast service # 1 by handling all broadcast packets that in ensemble # 1 and ensemble # 2, send.Selectively, provide broadcast service # 1 by only handling the broadcast packet that in ensemble # 1, sends with low quality, perhaps except the broadcast packet that in ensemble # 1, sends, also provide broadcast service # 1 with high-quality by handling the broadcast packet that in ensemble # 2, sends.
Broadcast-data receiving device 200 is by obtaining the second signaling information 831-1 and obtaining the IP address that the second signaling information 831-2 discerns broadcast packet from ensemble #2 (830-2) from ensemble #1 (830-1).The IP address of the IP address of the second signaling information 831-1 and the second signaling information 831-2 can be included in the service composition information 821, and service composition information 821 is included among the main signal group 820.
Next, the IP address that broadcast-data receiving device 200 obtains by use obtains the broadcast packet that is used for broadcast service # 1, and provides broadcast service # 1 by handling described broadcast packet.
Fig. 9 illustrates the method that broadcast service is provided of another exemplary embodiment according to the present invention in broadcast-data receiving device 200.Fig. 9 illustrates the situation that unprotect IP service (naked IP service) is provided by at least one ensemble among ensemble 930-1,930-2, the 930-N.
Suppose that the user has selected unprotect IP service # 1 in Fig. 9.
In whole specification, unprotect IP service is meant by signaling informations different with common broadcast service on the type of service handles the service that broadcast packet provides.Can serve a greater variety of services that provide by using unprotect IP.
With reference to first signaling information 910, provide the broadcast packet of unprotect IP service # 1 in ensemble #N (930-N), to be provided.Provide unprotect IP the broadcast packet of service in order to handle, three signaling information different with second signaling information is used in form.Therefore, from comprising first signaling information 910 and the service the main signal group 920 of being included in is formed at least one that select in the group of information 921 and comprised the sign of indication unprotect IP service and the unprotect IP information on services that comprises the IP address of the 3rd signaling information.
In Fig. 9, IMT is illustrated as the example of the 3rd signaling information.The IMT of information that comprises the position of the broadcast packet that indication sends in ensemble comprises the map information between the position of the IP address of broadcast packet and the described broadcast packet in the ensemble.
Broadcast-data receiving device 200 obtains IMT (931-N) by calling-on signal group #N (930-N).Next, broadcast-data receiving device 200 can provide unprotect IP service # 1 by the broadcast packet that obtains expectation based on IMT (931-N).
Figure 10 is the block diagram of broadcast data transmitting apparatus 1000 according to an exemplary embodiment of the present invention.
Broadcast data transmitting apparatus 1000 comprises information acquisition unit 1010, information generation unit 1020 and transmitting element 1030.
Emergence message can comprise at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
Type information is the information of the type of the related data of expression emergence message.For example, the type information information that can be illustrated in which kind of type in accident information, digital copyright management (DRM) information and the Weather information is sent out as emergence message.
Can represent type information by using " channel_type " field 432 among Fig. 4 B.In this case, can be apace with the information of signal transmission about the ensemble that sends emergence message, and need not to add " description ".
Short Description information about emergence message can comprise and will offer user's text message.The user can ask detailed description information after the Short Description information of having checked about emergence message.Yet when the detailed description information that sends by FIC about emergence message, the bandwidth of FIC may be not enough to send detailed description information.Therefore, can send detailed description information, and the information that sends about the position of the ensemble of the detailed description information of emergence message can be included in the signaling information by using ensemble about emergence message.If user's request is about the detailed description information of emergence message, the broadcast-data receiving device that then will be described below uses transmission to visit the ensemble of described transmission about the detailed description information of emergence message about the positional information of the ensemble of the detailed description information of emergence message.
The ensemble identifier that is used for the id signal group can be used as the positional information of ensemble.
1020 generations of information generation unit comprise handles the signaling information that the broadcast packet information necessary of broadcast service is provided and comprises emergence message.
Transmitting element 1030 sends signaling information by FIC.
Figure 11 is the block diagram of the broadcast-data receiving device 1100 of another exemplary embodiment according to the present invention.
Broadcast-data receiving device 1100 comprises information acquisition unit 1110 and processing unit 1120.
" channel_type " of first signaling information among Fig. 4 B but field 432 indicating emergency information whether exist.
Emergence message can comprise by the preferential information (such as accident condition information, Weather information etc.) that receives of broadcast-data receiving device or about the information of decoding broadcast packet.
Emergence message can comprise at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
When processing unit 1120 received emergence message, the current broadcast service that provides can be stopped, thereby emergence message is preferentially exported.
When receiving emergence message, control unit stops to provide the current broadcast service, and the storage of control store unit is about the process information of the processing of current broadcast service.Process information can comprise the information of any kind of of the broadcast service that is used to provide time-out.For example, process information can comprise the next position of current broadcast service that will provide and in the data that provide the current broadcast viability to produce.
Next, output unit output emergence message.
If if stop or receive termination from the user asking with the corresponding emergency of emergence message, then control unit control output unit restarts to provide the broadcast service of time-out.
Figure 12 illustrates the grammer of the main body of first signaling information according to an exemplary embodiment of the present invention.
In Figure 12, the quantity of the emergence message that 1210 expressions of " num_of_descriptor " field will send in first signaling information.
The type of " label (tag) " field 1220 expression emergence messages.The example values of " label " field 1220 is defined within the table 1.
[table 1]
[table 1]
| 0x01 | Accident information |
| 0x02 | The CAS/DRM decoded information |
| 0xxx | Keep |
With reference to table 1, when " label " field 1220 has value " 0x01 ", " FICdescriptor () " field 1230 expression accident informations.In addition, when " label " field 1220 has value " 0x02 ", " FICdescriptor () " field 1230 expression CAS/DRM decoded informations.
Figure 13 illustrates the example of " FICdescriptor () " field 1230 when " tag " field 1220 has value " 0x01 " according to an exemplary embodiment of the present invention.
1310 expressions of " accident_main_type " field are about the information of the type of accident information.
1320 expressions of " accident_sub_type " field are about the additional information of the type of accident information.For example, " accident_main_type " field 1310 can be represented higher level's kind of accident information, and " accident_sub_type " field 1320 can be represented subordinate's kind of accident information.For example, when " accident_main_type " field 1310 expression " natural accident ", of can represent from the group that comprises " flood ", " forest fire " and " earthquake ", to select of " accident_sub_type " field 1320.
" ensemble_id " field 1330 is represented the information about the position of the ensemble that sends detailed accident information.In other words, represent to indicate the information of the ensemble that sends detailed accident information by the ensemble identifier.
" accident_description " field 1340 comprises the concise and to the point description of accident information.
Figure 14 illustrates the example of " FICdescriptor () " field 1230 when " label " field 1220 has value " 0x02 " according to an exemplary embodiment of the present invention.
" segmentation_number " field 1410 expression is when the quantity of the segmentation of data during by segmentation.
" last_segment_number " field 1420 expression is when the numbering of the back segment of data during by segmentation.
1430 expressions of " key_stream_main_type " field send the identification information of the data flow of encryption key.
1440 expressions of " key_stream_sub_type " field send the additional identification information of the data flow of encryption key.
1450 expressions of " ensemble_id " field send the indication information about the ensemble of the details of data decode.In other words, represent to indicate the information of transmission by the ensemble identifier about the ensemble of the details of decoding.
1460 expressions of " key_stream_length " field send the length information of the data flow of encryption key.
1470 expressions of " key_stream " field are about the information of encryption key.
1480 expressions of " additional_key_stream_descriptor_length " field send the length information of the data flow of additional keys flow descriptors.
1490 expressions of " additional_key_stream_descriptor () " field are about the additional information of encryption key.
Figure 15 illustrates the example of the configuration of FIC channel and ensemble according to an exemplary embodiment of the present invention.
In Figure 15, when first signaling information provides accident information, in ensemble, send details about accident information with identifier " 0x02 ".
In Figure 15, broadcast channel information is corresponding with service composition information.Broadcast channel information comprises broadcast channel numbers 1521, broadcast channel title 1522, broadcast channel state 1523 and broadcast channel Class1 524.
Figure 16 illustrates the example of the configuration of the FIC 1610 of another exemplary embodiment according to the present invention and ensemble.
In Figure 16, first signaling information provides decoded information.In ensemble, send the detailed description of decoded information, and in ensemble, send data stream encrypted respectively with identifier " 0x03 ", " 0x04 ", " 0x05 " and " 0x06 " with identifier " 0x03 ".
Figure 17 is the flow chart of broadcast data transmitting method according to an exemplary embodiment of the present invention.
At operation S1710, generation will be used the service composition information of the broadcast service that the broadcast packet that sends by at least one channel provides.
At operation S1720, produce first signaling information that indication will send the ensemble of service composition information.
At operation S1730, send broadcast packet, service composition information and first signaling information.
Figure 18 is the flow chart of broadcast data receiving method according to an exemplary embodiment of the present invention.
At operation S1810, obtain first signaling information of the ensemble of indicating the composition information that sends broadcast service.Service composition information is meant by using the composition information of the broadcast service that the broadcast packet that sends through at least one channel provides.
At operation S1820, obtain service composition information based on first signaling information.
At operation S1830, provide broadcast service based on the service composition information and first signaling information.
Figure 19 is the flow chart of the broadcast data transmitting method of another exemplary embodiment according to the present invention.
At operation S1910, obtain by the preferential emergence message that receives of broadcast-data receiving device.Emergence message can comprise at least one that select from the group that comprises following item: accident condition information, Weather information and the information of decoding about broadcast packet.Emergence message can comprise at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
At operation S1920, produce signaling information, described signaling information comprises handling to be provided the broadcast packet information necessary of broadcast service and comprises emergence message.
At operation S1930, send signaling information by FIC.
Figure 20 is the flow chart of broadcast data receiving method according to an exemplary embodiment of the present invention.
At operation S2010, receive signaling information by FIC, described signaling information comprises the broadcast packet information necessary that the emergence message that will preferentially be received and processing provide broadcast service.
At operation S2020, obtain emergence message from signaling information.
Exemplary embodiment of the present can be written as computer program and can carry out in the readable medium recording program performing that uses a computer comes the general purpose digital computer of executive program.
The example of computer readable recording medium storing program for performing comprises magnetic storage medium (for example, ROM, floppy disk, hard disk etc.) and optical record medium (for example, CD-ROM or DVD).
Although specifically shown and described the present invention with reference to exemplary embodiment of the present, but those of ordinary skill in the art will understand, under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out various changes on form and the details to it.It only is describing significance that exemplary embodiment should be considered to, and is not used in the restriction purpose.Therefore, scope of the present invention is not to be limited by detailed description of the present invention, but is limited the scope of the invention by claim, and all difference in this scope will be interpreted as comprising in the present invention.
Claims (33)
1. broadcast data transmitting method comprises:
Information is formed in the service that produces broadcast service, and described broadcast service will use at least one broadcast packet that sends by at least one channel to provide;
Produce first signaling information, the indication of first signaling information will send the ensemble of service composition information;
Send described at least one broadcast packet, service composition information and first signaling information.
2. the method for claim 1, wherein, service is formed packets of information draw together at least one that select from is comprised following group: be used for broadcast service service identifier, expression broadcast service school genre information and about the supplier's of broadcast service information.
3. the method for claim 1 also comprises: for each ensemble produces second signaling information, described second signaling information comprises the information that is used for handling at least one broadcast packet that will send at each ensemble,
Wherein, described forwarding step also comprises: send second signaling information in each ensemble.
4. method as claimed in claim 3, wherein, first signaling information comprises the Internet protocol IP address of second signaling information.
5. the method for claim 1, wherein first signaling information comprises map information between broadcast service and the ensemble, transmission is provided described at least one broadcast packet of described broadcast service in described ensemble.
6. the method for claim 1, wherein first signaling information comprises the version information of serving composition information.
7. the method for claim 1, wherein described forwarding step comprises: information is formed in the service that sends in by the ensemble of first signaling information indication, and sends first signaling information by fast information channel in dab receiver.
8. broadcast data transmitting method comprises:
Obtaining will be by the preferential emergence message that receives of broadcast-data receiving device;
Produce signaling information, described signaling information comprises the information that is used to handle the broadcast packet that broadcast service is provided and comprises emergence message;
FIC sends signaling information by fast information channel in dab receiver.
9. method as claimed in claim 8, wherein, emergence message comprises at least one that select from the group that comprises following item: accident condition information, Weather information and the information of decoding about broadcast packet.
10. method as claimed in claim 8, wherein, emergence message comprises at least one that select from comprise following group: the type information of the type of expression emergence message, about the short descriptor of emergence message and the transmission positional information about the ensemble of the detailed description information of emergence message.
11. a broadcast data receiving method comprises:
Obtain first signaling information, the ensemble of information is formed in the service that described first signaling information indication sends broadcast service;
Obtain service composition information based on first signaling information;
Provide broadcast service based on the service composition information and first signaling information,
Wherein, service composition information is the information of the composition of the broadcast service that provides about the broadcast packet that will use by at least one channel transmission.
12. method as claimed in claim 11, wherein, service is formed packets of information draw together at least one that select from is comprised following group: be used for broadcast service service identifier, expression broadcast service school genre information and about the supplier's of broadcast service information.
13. method as claimed in claim 11 wherein, provides the step of broadcast service to comprise:
The tabulation of the broadcast service that will provide is provided based on service composition information;
The demonstration of the tabulation of control broadcast service;
If selected one of broadcast service in the tabulation, then visit sends the ensemble of the broadcast packet of the broadcast service that selection is provided.
14. method as claimed in claim 13 wherein, provides the step of broadcast service also to comprise:
Obtain second signaling information from each ensemble, described second signaling information comprises the information of the broadcast packet that is used to handle the broadcast service that selection is provided;
Use second signaling information to handle the broadcast packet of the broadcast service that selection is provided.
15. method as claimed in claim 14, wherein, first signaling information comprises the IP address of second signaling information.
16. method as claimed in claim 11 also comprises:
At least one that storage is selected from the group that comprises following item: the service composition information and first signaling information;
Based on from the described group that comprises service composition information and first signaling information, select described at least one the tabulation of the broadcast service that will provide is provided.
17. method as claimed in claim 11, wherein, first signaling information also comprises: broadcast service and transmission provide the map information between the ensemble of broadcast packet of described broadcast service.
18. method as claimed in claim 11, wherein, first signaling information also comprises the version information of service composition information.
19. method as claimed in claim 11, wherein, the step of obtaining first signaling information comprises: obtain first signaling information by fast information channel in dab receiver.
20. a broadcast data receiving method comprises:
Receive signaling information from fast information channel in dab receiver, described signaling information comprises the broadcast packet information necessary that the emergence message that will preferentially be received and processing provide broadcast service;
Obtain emergence message from signaling information.
21. method as claimed in claim 20, wherein, emergence message comprises at least one that select from comprise following group: accident condition information, Weather information and about the information of decoding broadcast packet.
22. method as claimed in claim 20, wherein, emergence message comprises at least one that select from comprise following group: the type information of the type of expression emergence message, about the Short Description information of emergence message and send positional information about the ensemble of the detailed description information of emergence message.
23. method as claimed in claim 22 wherein, sends the positional information of ensemble in " channel_type " field in first signaling information.
24. method as claimed in claim 20 also comprises the emergence message that preferential output receives.
25. method as claimed in claim 24, wherein, the output step comprises:
The process information that stops to provide the current broadcast service and store the processing of serving about current broadcast;
The output emergence message;
If if stop or receive the request of termination with the corresponding emergency of emergence message, the broadcast service of then using the process information of storage to restart to suspend.
26. a broadcast data transmitting apparatus comprises:
Service composition information generation unit, generation will use the service composition information of the broadcast service that the broadcast packet that sends by at least one channel provides;
The signaling information generation unit produces first signaling information, and the indication of first signaling information will send the ensemble of service composition information;
Transmitting element sends broadcast packet, service composition information and first signaling information.
27. a broadcast data transmitting apparatus comprises:
Information acquisition unit is obtained the emergence message by the preferential reception of broadcast-data receiving device;
The information generation unit produces signaling information, and described signaling information comprises the information that is used to handle the broadcast packet that broadcast service is provided and comprises emergence message;
Transmitting element, FIC sends signaling information by fast information channel in dab receiver.
28. a broadcast-data receiving device comprises:
The signal message acquiring unit obtains first signaling information, and the ensemble of information is formed in the service that described first signaling information indication sends broadcast service;
Information acquisition unit is formed in service, obtains service composition information based on first signaling information;
Service provides the unit, provides broadcast service based on the service composition information and first signaling information,
Wherein, use the broadcast packet that sends by at least one channel that broadcast service is provided.
29. a broadcast-data receiving device comprises:
The signaling information receiving element receives signaling information from fast information channel in dab receiver FIC, and described signaling information comprises emergence message that will preferentially be received and the information that is used to handle the broadcast packet that broadcast service is provided;
The emergence message acquiring unit obtains emergence message from signaling information.
30. one kind records and is used for the computer readable recording medium storing program for performing that enforcement of rights requires the computer program of 1 described method.
31. one kind records and is used for the computer readable recording medium storing program for performing that enforcement of rights requires the computer program of 8 described methods.
32. one kind records and is used for the computer readable recording medium storing program for performing that enforcement of rights requires the computer program of 11 described methods.
33. one kind records and is used for the computer readable recording medium storing program for performing that enforcement of rights requires the computer program of 20 described methods.
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| PCT/KR2009/004623 WO2010021493A2 (en) | 2008-08-20 | 2009-08-20 | Method and apparatus for transmitting broadcast data, and method and apparatus for receiving broadcast data |
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| CN103975602A (en) * | 2011-10-20 | 2014-08-06 | Lg电子株式会社 | Broadcast service receiving method and broadcast service receiving apparatus |
| CN109274509A (en) * | 2018-08-22 | 2019-01-25 | Oppo广东移动通信有限公司 | Broadcast state determines method, apparatus, electronic equipment and storage medium |
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| CA2837053C (en) | 2011-05-25 | 2016-12-06 | Lg Electronics Inc. | Transmitting/receiving system and method for processing a broadcasting signal |
| WO2015016670A1 (en) | 2013-08-01 | 2015-02-05 | Lg Electronics Inc. | Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals |
| KR101841947B1 (en) * | 2014-04-24 | 2018-03-26 | 엘지전자 주식회사 | Broadcasting transmitting apparatus, method for operating broadcasting transmitting apparatus, broadcasting receiving apparatus, and method for operating broadcasting receiving apparatus |
| EP3217621A4 (en) * | 2014-11-04 | 2018-06-13 | LG Electronics Inc. | Broadcasting signal transmission device, broadcasting signal reception device, broadcasting signal transmission method, and broadcasting signal reception method |
| CA3126649C (en) | 2014-11-20 | 2023-10-17 | Lg Electronics Inc. | Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101575632B1 (en) | 2015-12-08 |
| MX2011001630A (en) | 2011-03-28 |
| CN103220059A (en) | 2013-07-24 |
| FI20115081L (en) | 2011-01-27 |
| CN102132560B (en) | 2015-04-15 |
| CA2732953A1 (en) | 2010-02-25 |
| CN103220059B (en) | 2016-07-06 |
| DE112009002041T5 (en) | 2011-07-14 |
| KR20100022912A (en) | 2010-03-03 |
| CA2732953C (en) | 2014-04-08 |
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