CN102132560B - 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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- CN102132560B CN102132560B CN200980132603.4A CN200980132603A CN102132560B CN 102132560 B CN102132560 B CN 102132560B CN 200980132603 A CN200980132603 A CN 200980132603A CN 102132560 B CN102132560 B CN 102132560B
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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
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 for sending data and reception data, more particularly, relates to the method and apparatus sending broadcast data and receive broadcast data.
Background technology
Due to the development of current information and the communication technology, provide broadcast service by various media.Specifically, along with the development of mobile communication technology, the broadcast service of mobile terminal is used to arouse attention.
In addition, because more broadcasting station provides broadcast service, therefore beholder can select from a greater variety of channel (channel), and therefore, more beholder have subscribed broadcast service.
This development of mobile terminal and the availability increase of various broadcasted content contribute to 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 for sending broadcast data and the method and apparatus for receiving broadcast data.
Accompanying drawing explanation
By referring to the detailed description that accompanying drawing carries out exemplary embodiment of the present, above and other aspect 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 the first signaling information according to an exemplary embodiment of the present invention;
Fig. 4 B illustrates the payload of the 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 the information that service composition information and the first signaling information obtain;
Fig. 6 illustrates according to an exemplary embodiment of the present invention by using the list of the broadcast service of service composition information creating;
Fig. 7 illustrates the method providing broadcast service in the broadcast-data receiving device shown in fig. 2 according to an exemplary embodiment of the present invention;
Fig. 8 illustrates the method providing broadcast service in the broadcast-data receiving device shown in fig. 2 according to another exemplary embodiment of the present invention;
Fig. 9 illustrates the method providing broadcast service in the broadcast-data receiving device shown in fig. 2 according to another exemplary embodiment of the present invention;
Figure 10 is the block diagram of the broadcast data transmitting apparatus according to another exemplary embodiment of the present invention;
Figure 11 is the block diagram of the broadcast-data receiving device according to another exemplary embodiment of the present invention;
Figure 12 illustrates the grammer of the main body of the 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 according to the signaling information channel of another exemplary embodiment of the present invention and the configuration of 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 according to another exemplary embodiment of 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: produce the service composition information of the broadcast service using at least one broadcast packet sent by least one channel to provide; Produce the first signaling information, the first signaling information instruction will send the ensemble of service composition information; Send broadcast packet, service composition information and the first signaling information.
Service composition information can comprise at least one that select from the group comprising following item: for broadcast service service identifier, represent the genre information of school of broadcast service and the information of the supplier about broadcast service.
Broadcast data transmitting method also can comprise: for each ensemble produces the second signaling information, described second signaling information is required for process at least one broadcast packet of sending in each ensemble, wherein, described forwarding step also comprises: in corresponding signal group, send the second signaling information.
First signaling information can comprise Internet protocol (IP) address providing necessary second signaling information of broadcast service.
First signaling information can comprise the map information between broadcast service and ensemble, will send the broadcast packet providing described broadcast service in described ensemble.
First signaling information can comprise the version information of service composition information.
The step sending broadcast packet, service composition information and the first signaling information can comprise: the service that sends in the ensemble indicated by the first signaling information forms information, and sends the 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 broadcast-data receiving device preferential receipt; Produce signaling information, described signaling information comprises process to be provided the necessary information of the broadcast packet of broadcast service and comprises emergence message; Signaling information is sent by FIC.
Emergence message can comprise at least one that select from the group comprising following item: accident condition information, Weather information and the information about broadcast packet decoding.
Emergence message can comprise at least one that select from the group comprising following item: represent the type information of the type of emergence message, about the Short Description information of emergence message and the positional information that sends 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 the first signaling information, and described first signaling information instruction sends the ensemble of the service composition information of broadcast service; Service composition information is obtained based on the first signaling information; Broadcast service is provided based on service composition information and the first signaling information, wherein, the information that composition information is the composition about the broadcast service that will the broadcast packet sent by least one channel (frequency channel) used to provide is served.
Service composition information can comprise at least one that select from the group comprising following item: for broadcast service service identifier, represent the genre information of school of broadcast service and the information of the supplier about broadcast service.
The step of broadcast service is provided to comprise: to create the list of the broadcast service provided based on service composition information; Control the display of the list of broadcast service; If have selected one of broadcast service in list, then access sends the ensemble providing the broadcast packet of the broadcast service of selection.
There is provided the step of broadcast service also to comprise: to obtain the second signaling information from the ensemble of access, described second signaling information comprises provides necessary information for the broadcast packet of the broadcast service of selection for process; The second signaling information process is used to provide the broadcast packet of the broadcast service of selection.
First signaling information can comprise the IP address of the second signaling information.
First signaling information can also comprise: broadcast service and transmission provide the map information between the ensemble of the broadcast packet of described broadcast service.
First signaling information also can comprise the version information of service composition information.
The step obtaining the first signaling information can comprise: obtain the 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 provides the broadcast packet of broadcast service necessary information by by the emergence message of preferential receipt and process; Emergence message is obtained from signaling information.
Emergence message can comprise at least one that select from the group comprising following item: accident condition information, Weather information and the information about decoding broadcast bag.
Emergence message can comprise at least one that select from the group comprising following item: represent the type information of the type of emergence message, about the Short Description information of emergence message and the positional information that sends 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 creating unit, produces the service composition information of the broadcast service using the broadcast packet sent by least one channel to provide; Signaling information generation unit, produces the first signaling information, and the first signaling information instruction will send the ensemble of service composition information; Transmitting element, sends broadcast packet, service composition information and the 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, obtains the emergence message by broadcast-data receiving device preferential receipt; Information creating unit, produces signaling information, and described signaling information comprises process to be provided the necessary information of the broadcast packet 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: signaling information acquiring unit, obtains the first signaling information, and described first signaling information instruction sends the ensemble of the service composition information of broadcast service; Service composition information acquisition unit, obtains service composition information based on the first signaling information; Service rendering units, is provided broadcast service based on service composition information and the first signaling information, wherein, uses the broadcast packet sent by least one channel to provide broadcast service.
According to a further aspect in the invention, a kind of broadcast-data receiving device is provided, described equipment comprises: signaling information receiving element, and receive signaling information from FIC, described signaling information comprises provides the broadcast packet of broadcast service necessary information by by the emergence message of preferential receipt and process; Emergence message acquiring unit, obtains emergence message from signaling information.
According to a further aspect in the invention, a kind of broadcast data transmitting apparatus is provided, comprises: send the first signaling information by fast information channel in dab receiver; Send the main signal group comprising service composition information; Send the secondary signal group comprising the second signaling information and at least one broadcast packet, wherein, main signal group and secondary signal group are the data transmission unit according to error coding dividing elements, wherein, first signaling information is included in the link of main signal group, and wherein, service composition information comprises the information about the broadcast service provided by least one broadcast packet.
Second signaling information can comprise one of service mapping table and Internet Protocol map table for the treatment of at least one broadcast packet.
Fast information channel in dab receiver can be encoded as than main signal group and secondary signal group for more strong the 3rd 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 generation unit, produces the main signal group comprising service composition information; Secondary signal group generation unit, produces the secondary signal group comprising the second signaling information and at least one broadcast packet; Transmitting element, send the 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 error coding dividing elements, and wherein, service composition information comprises the information about the broadcast service provided by least one broadcast packet described.
Transmitting element sends the first signaling information by fast information channel in dab receiver.
Fast information channel in dab receiver can be encoded as than main signal group and secondary signal group for more strong the 3rd ensemble of mistake.
According to a further aspect in the invention, provide a kind of broadcast-data receiving device, described equipment comprises: obtain the first signaling information, and described first signaling information is sent by fast information channel in dab receiver and is included in the link of the main signal group comprising service composition information; Service composition information is obtained based on the first signaling information; Broadcast service is provided based on service composition information and the first signaling information, wherein, main signal group is the data transmission unit according to error coding dividing elements, and wherein, service composition information comprises the information about the broadcast service provided by least one broadcast packet be included in secondary signal group.
Main signal group can be accessed before secondary signal group.
The method also can comprise the following steps: use the service composition information obtained to provide the list of broadcast service; The selection of broadcast service is received from 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: signaling information acquiring unit, obtains the first signaling information, and the first signaling information is sent by fast information channel in dab receiver and is included in the link of the main signal group comprising service composition information; Service composition information acquisition unit, obtains service composition information based on the first signaling information; Broadcast service providing unit, broadcast service is provided based on service composition information and the first signaling information, wherein, main signal group is the data transmission unit according to error coding dividing elements, and wherein, service composition information comprises the information about the broadcast service provided by least one broadcast packet be included in secondary signal group.
Embodiment
This application claims the 61/090th in 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 Korean Intellectual Property Office on June 25th, 2009, the open of above-mentioned application is completely integrated in this for reference by reference.
Hereinafter, exemplary embodiment of the present is described in detail with reference to the accompanying drawings.
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 creating unit 110, signaling information generation unit 120 and transmitting element 130.
Service composition information creating unit 110 is produced the composition information of the broadcast service using the broadcast packet sent by least one channel to provide.Service composition information can comprise the detailed description of information about the type of the broadcast service will provided by least one channel and broadcast service.In whole specification, channel refers to the channel by using vestigial sideband (VSB) modulation and modulation.Many service composition information are sent by a channel.But, hereinafter, for convenience of explanation, suppose to send a service composition information by a channel.Service composition information not only can comprise the composition information of the broadcast service provided by the channel by carrying described service composition information, and can comprise the composition information of the broadcast service provided by other channels.
Service composition information can comprise from comprise by select the group of following item at least one: for identifying the service identifier of each broadcast service, the genre information of school (genre) representing each broadcast service and the Short Description information of each broadcast service.Service composition information also can comprise the map information between broadcast service and the IP address providing the broadcast packet of broadcast service or the map information between broadcast service and the second signaling information corresponding to this broadcast service (describing below).The above-mentioned item of information is only the example of service composition information, and can be used as service composition information about any information of broadcast service and be included.
Signaling information generation unit 120 produces the first signaling information, and the first signaling information instruction will send the ensemble of service composition information.In whole specification, ensemble (ensemble) refers to the data transmission unit according to error coding dividing elements.At least one ensemble is sent by same frequency transmitting channel.First signaling information can be assigned with the identification number of the ensemble sending service composition information, and therefore the first signaling information can indicate the ensemble sending service composition information.Whether in addition, the first signaling information can comprise the version information of service composition information, be updated to indicate service composition information.
First signaling information can comprise the map information between broadcast service and ensemble.In other words, the first signaling information can comprise the information about the ensemble providing each broadcast service.
In addition, the first signaling information can comprise the IP address of second signaling information corresponding to each broadcast service.
Signaling information generation unit 120 can also produce the second signaling information.For each ensemble produces the second signaling information, wherein, described second signaling information is required for process for the broadcast packet sent in ensemble.The example of the second signaling information can comprise IP mapping table (IMT), service mapping table (SMT) etc.Second signaling information can be included in the description of the broadcast service provided in the broadcast packet of ensemble and the IP address of broadcast packet.
If the IP address of the second signaling information is by broadcast data transmitting apparatus 100 and the pre-assigned IP address of broadcast-data receiving device described below, then broadcast-data receiving device knows the IP address of the second signaling information, and therefore the IP address of the second signaling information is not additionally sent to broadcast-data receiving device by broadcast data transmitting apparatus 100.
But if broadcast-data receiving device does not know the IP address of the second signaling information, then the IP address of the second signaling information can be sent to broadcast-data receiving device by broadcast data transmitting apparatus 100.In the latter cases, the IP address of the second signaling information can be included at least one selection from the group comprising service composition information and the first signaling information.Such as, the map information between the IP address of broadcast service identifier and the second signaling information corresponding to this broadcast service identifier can be included at least one selection from group below, and wherein, described group comprises service composition information and the first signaling information.Second signaling information corresponding to broadcast service identifier refers to the second signaling information for the treatment of the broadcast service represented by described broadcast service identifier, in more detail, refers to the second signaling information for the treatment of the broadcast packet providing respective broadcast to serve.
Transmitting element 130 sends broadcast packet, service composition information and the first signaling information.
Transmitting element 130 sends the first signaling information by FIC.In whole specification, FIC refers to and compares being encoded as the more strong ensemble of error correction than other ensembles.At least one FIC is included in each channel.
Transmitting element 130 sends service signal group information in the ensemble indicated by the first signaling information, and sends broadcast packet in other ensembles.The ensemble sending service composition information only can 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 signaling information acquiring unit 210, service composition information acquisition unit 220 and service rendering units 230.
Signaling information acquiring unit 210 can obtain the first signaling information, and wherein, the first signaling information instruction sends the ensemble of the service composition information of broadcast service.Service composition information comprises the information of the composition about all broadcast service using the broadcast packet sent by least one channel to provide.Signaling information acquiring unit 210 obtains the first signaling information by FIC.
Service composition information acquisition unit 220 obtains composition information based on the first signaling information.Because the first signaling information comprises the information about the ensemble sending service composition information, therefore, service composition information acquisition unit 220 can obtain composition information based on the first signaling information from ensemble.
Service rendering units 230 provides based on service composition information and the first signaling information the broadcast service selected by user.Easily select the broadcast service expected to enable user, service rendering units 230 can comprise list generating unit 231, control unit 232, addressed location 233, second signaling information acquiring unit 234 and processing unit 235.
List generating unit 231 produces the list of the broadcast service provided based on service composition information.Suppose to send a service composition information by a channel, list generating unit 231 uses at least one service composition information sent respectively by multiple channel to produce the list of the broadcast service provided by broadcast-data receiving device 200.
Control unit 232 controls the output of the list of broadcast service.Control unit 232 controls the list being exported broadcast service by output device (such as display unit or loud speaker).User can select one of broadcast service in the list of the broadcast service exported.
Addressed location 233 accesses the ensemble sending and provide the broadcast packet of the broadcast service selected by user.Broadcast composition information comprises the service identifier of the broadcast service for identifying selection, and the first signaling information comprises the map information between service identifier and ensemble.Therefore, addressed location 233 can use service composition information and the first signaling information optionally to access the ensemble providing the broadcast service selected by user.
Second signaling information acquiring unit 234 obtains the second signaling information from the ensemble of access.Second signaling information is required for processing for the broadcast packet that sends in ensemble, and can comprise about providing the information of which broadcast service and about the information of IP address of broadcast packet providing broadcast service in ensemble.
When broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 have allocated the IP address of the second signaling information in advance, second signaling information acquiring unit 234 obtains the second signaling information by the broadcast packet with pre-assigned IP address obtained in the described ensemble of access, and without the need to additional information.
But, when broadcast data transmitting apparatus 100 and broadcast-data receiving device 200 also do not allocate the IP address of the second signaling information in advance, the IP address of the second signaling information can be included in from the group selection comprising service composition information and the first signaling information at least one.In this case, the second signaling information acquiring unit 234 can obtain the IP address of the second signaling information from least one of the group selection below oneself, and wherein, described group comprises the first signaling information and service composition information.
Processing unit 235 uses the second signaling information to process the broadcast packet of the broadcast service providing selection.
In the exemplary embodiment, list generating unit 231 and control unit 232 can not included in broadcast-data receiving devices 200.Selectively, list generating unit 231 and control unit 232 can be included in broadcast-data receiving device 200, and and if only if when broadcast-data receiving device 200 starts to operate, when receiving area changes, upon request by a user, when the version of serving composition information changes and/or when broadcast-data receiving device 200 initialization time, list generating unit 231 and control unit 232 can operate.In a further exemplary embodiment, when broadcast-data receiving device 200 operates, the service of previous receipt can be used to form information for list generating unit 231 and control unit 232 or the first signaling information selects broadcast service to provide the list of broadcast service to enable user.
Fig. 3 illustrates the grammer of serving composition information according to an exemplary embodiment of the present invention.Channel description list (CDT, Channel Description Table) in Fig. 3 is the example of service composition information.In addition, " channel (channel) " in Fig. 3 is different from " channel " that use in whole specification, and " channel " in Fig. 3 relates to the concept of broadcast service.
" M1_info_type " field 310 represents the type of data.In figure 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 for identification of broadcast service.
" channel_type " field 330 represents the type of broadcast service, i.e. the school of broadcast service.The school of broadcast service can be categorized as such as 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 such as audio service, audio frequency and video (A/V) service, data, services etc.
" virtual_channel_status " field 340 represents the current state of broadcast service.Such as, " virtual_channel_status " field 340 can represent that broadcast service is " activity " or " inactive "." activity " state refer to current Broadcast Service can state, " inactive " state refers to the disabled state of current Broadcast Service." inactive " 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 but not by state that user sees.
" base_channel_indicator " field 350 represents whether respective broadcast service is relevant to other broadcast service.Such as, 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 broadcast service from low quality broadcast service still from high-quality broadcast service.In addition, " base_channel_indicator " field 350 can comprise the descriptor of the broadcast service relevant to other broadcast service.In this case, " base_channel_indicator " field 350 can comprise the identifier of high-quality (or low quality) broadcast service and provide the identifier of ensemble of high-quality broadcast service (or low quality broadcast service).
" short_channel_description " field 360 can comprise the Short Description of broadcast service." short_channel_description " field 360 can comprise any information describing broadcast service.Such as, " short_channel_description " field 360 can comprise the information about the broadcasting service provider providing respective broadcast to serve.
" channel_descriptor_loop " field 370 represents the detailed description of broadcast service.Such as, the detailed genre information of broadcast service can be included in " channel_descriptor_loop " field 370.
Grammer in Fig. 3 is only the example of service composition information, and serves composition information and also can comprise and provide the IP address of the broadcast packet of broadcast service, process the IP address of necessary second signaling information of described broadcast packet or provide the identifier of ensemble of broadcast service.
Fig. 4 A and Fig. 4 B illustrates the grammer of the first signaling information according to an exemplary embodiment of the present invention.
Fig. 4 A illustrates the head of the first signaling information according to an exemplary embodiment of the present invention.
" transport_stream_id " field 412 represents the identifier of the stream sent by channel.
" ESG_version " field 414 represents the version of electronic service guidebooks (ESG) data.ESG data are metadata of broadcast service.
" IMT_version " field 416 represents the version of IMT data.IMT data can comprise broadcast packet IP address and about the position of the broadcast packet in ensemble information between map information.In other words, the position of IMT data representation broadcast packet in ensemble.
" CDT_version " field 418 represents the version information of channel description list (CDT).
Fig. 4 B illustrates the payload of the first signaling information according to an exemplary embodiment of the present invention.
" ensemble_id " field 422 is identifiers of ensemble.
" primary_ensemble_indicator " field 424 represents whether corresponding signal group is main signal group.Main signal group refers to and is defined as ensemble accessed before other ensembles.Therefore, " primary_ensemble_indicator " field 424 can indicate the ensemble sending CDT.
" SG_entry_point_indicator " field 426 represents whether service guide (SG) is included in corresponding signal group.
" num_channels " field 428 represents the quantity of the broadcast service provided by corresponding signal group.
" channel_type " field 432 refers to the form providing broadcast service.Such as, " channel_type " field 432 can represent that broadcast service is audio service, A/V service, data, services or emergency information service.
" virtual_channel_status " field 434 represents the state of broadcast service.Such as, " virtual_channel_status " field 434 can represent that broadcast service is " activity ", " inactive " or " hiding " etc. as above.
" primary_channel_indicator " field 436 represents main broadcast service.Such as, " primary_channel_indicator " field 436 can indicate the broadcast service in the ensemble that first provides in other broadcast service multiple, and can indicate such as the second signaling information.
" SP_indicator " field 438 represents provides respective broadcast to serve at least one whether encrypted or scrambling in necessary assembly.
" major_channel_num " field 442 and " minor_channel_num " field 444 comprise the information for identification of broadcast service, and are classified according to preassigned.Such as, can classify to " major_channel_num " field 442 according to ISP.For " major_channel_num " field 442, the broadcast service provided by same services supplier can have identical value.In addition, can classify to " minor_channel_num " field 444 according to the broadcast service provided by same services supplier.
Which according to an exemplary embodiment of the present, can obtain about the information providing broadcast service in each ensemble from the For circulation of two the first signaling information.
Fig. 5 illustrates according to an exemplary embodiment of the present from the information that service composition information and the first signaling information obtain.The information obtained from service composition information and the first signaling information comprises service identifier 510, IP address and ensemble identifier 530.
With reference to Fig. 5, service #1 provides in ensemble #1 and ensemble #3 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 provide the broadcast packet of service #1 by using second signaling information with IP address 222.0.0.1 and 222.0.0.2 to process.
Suppose that user has requested service #1.Broadcast-data receiving device initial access ensemble #1 has the broadcast packet of IP address 222.0.0.1 to obtain, and calling-on signal group #3 has the broadcast packet of IP address 222.0.0.2 with acquisition subsequently.The broadcast packet obtained comprises the second signaling information, and broadcast-data receiving device is by processing the second signaling information to obtain the IP address of the broadcast packet providing service #1.Subsequently, broadcast-data receiving device provides the broadcast packet of service #1 to provide service #1 by selectively only processing.
Fig. 6 illustrates the list of the broadcast service using service composition information creating according to an exemplary embodiment of the present invention.
The list 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, user is easily identified, and the concept of the broadcast channel numbers 610 of broadcast service is different from the concept of physical channel.Broadcast channel numbers 610 can have the form of " primary broadcast channel number "-" secondary-broadcast channel number ".Here, " primary broadcast channel number " can be used for identifying the broadcasting station (i.e. ISP) providing broadcast service, and " secondary-broadcast channel number " can be used for identifying the independent broadcast service provided by same services supplier.In figure 6, " primary broadcast channel number " of the broadcast service provided by " broadcasting station A " is " 10 ", and " primary broadcast channel number " of the broadcast service 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.Such as, broadcast channel information 620 can comprise the brief information of the ISP about the broadcast service provided by broadcast channel, the information etc. about the school of the broadcast service provided by described broadcast channel.
Higher level's genre information 630 represents higher level's school of the current broadcast service provided.Can classify to higher level's school by different way according to embodiment.Such as, higher level's school of broadcast service can be classified as drama, film, physical culture, news and metadata.
Subordinate's genre information 640 represents the subflow group of broadcast service.Can come more accurately to provide instruction broadcast service to be information about what based on subordinate's genre information 640.In other words, higher level's genre information 630 can represent that broadcast service belongs to higher level's kind of the multiple schools of one of them, and subordinate's genre information 640 can represent that broadcast service belongs to subordinate's kind of the multiple schools of one of them.
Fig. 7 illustrates the method providing broadcast service according to an exemplary embodiment of the present invention in broadcast-data receiving device 200.
When user starts to operate broadcast-data receiving device 200 or initialization broadcast-data receiving device 200, broadcast channel scanning starts.Broadcast-data receiving device 200 by scanning broadcast channel provide user can the list of broadcast channel.
Broadcast channel can be scanned according to kind of the method for two below.
First, the service be included in main signal group 720 can be used to form information 721 to scan broadcast channel.
Broadcast-data receiving device 200 obtains the first signaling information 710 from FIC.First signaling information 710 comprises the necessary information of broadcast packet processing and send at least one ensemble of ensemble 730-1, ensemble 730-2, ensemble 730-N.
With reference to Fig. 7, the first signaling information 710 can comprise service identifier, IP information, version information, genre information and ensemble identifier.
IP information represents the IP address of necessary second signaling information of the broadcast service providing corresponding to service identifier.
Version information represents the version of the second signaling information.
Genre information represents the school of the broadcast service corresponding to service identifier.
Ensemble identifier represents the ensemble of the broadcast service providing corresponding to service identifier.
Although not shown in Figure 7, the first signaling information 710 also can comprise the information that instruction sends the main signal group 720 of service composition information 721.In addition, the IP address of the second signaling information and genre information can be included in service composition information 721 specially, and may not included in the first signaling information 710.
Next, broadcast-data receiving device 200 visits the main signal group 720 sending service composition information 721 based on the first signaling information 710, and obtains service composition information 721 from the main signal group 720 of access.
Broadcast-data receiving device 200 repeats above-mentioned process to obtain all service composition information 721 to all channels.
Subsequently, broadcast-data receiving device 200 creates the list of broadcast channel by process service composition information 721, and the list of broadcast channel is supplied to user.
Secondly, can broadcast channel be scanned, and without the need to using service composition information 721.
Broadcast-data receiving device 200 receives the first signaling information 710 from FIC.First signaling information 710 comprises the IP address of the second signaling information.
Broadcast-data receiving device 200 uses the IP address of the second signaling information to come from each ensemble 730-1,730-2 ... 730-N obtains the second signaling information.Second signaling information comprises and processes the necessary information of broadcast packet that sends in corresponding signal group and the information about the broadcast service will provided by described corresponding signal group.
Broadcast-data receiving device 200 creates the list of broadcast channel by processing the second signaling information, and subsequently the list of described broadcast channel is supplied to user.
Because broadcast-data receiving device 200 is by accessing each ensemble to obtain the second signaling information, because after this kind of method can take a long time.But in last method, broadcast-data receiving device 200, by accessing an ensemble only to obtain service composition information 721 to scan broadcast channel, therefore scans the broadcast channel cost less time.
Once be completed the scanning of broadcast channel by above-mentioned process, the list of the broadcast service created just can be provided to user, unless there are abnormal conditions, such as, when serving composition information 721 and being updated, when there is the request of user, or when broadcast-data receiving device 200 is initialised.Under all abnormal conditions, again perform broadcast channel scanning.
When the list of broadcast service is provided, user selects to comprise one of broadcast service in the list.If user does not select one of broadcast service, then corresponding to the broadcast channel selected recently broadcast service can be selected.Selectively, corresponding to the broadcast channel being set to give tacit consent to broadcast service can be selected.
When user selects broadcast service, broadcast-data receiving device 200 uses the first signaling information 710 to visit the ensemble of the broadcast service providing selection.As mentioned above, the first signaling information 710 comprises the information that instruction sends the ensemble of each broadcast service.
Broadcast-data receiving device 200 obtains the second signaling information from the ensemble of access.Second signaling information selectively has by the pre-assigned IP address of both broadcast data transmitting apparatus 100 and broadcast-data receiving device 200.When the second signaling information comprises by the pre-assigned IP address of both broadcast data transmitting apparatus 100 and broadcast-data receiving device 200, broadcast-data receiving device 200 obtains the broadcast packet with pre-assigned IP address from the ensemble of access.When the second signaling information does not comprise pre-assigned IP address, identify the IP address of the second signaling information based on the service composition information 721 be included in main signal group 720 or the first signaling information 710, and the broadcast packet with the IP address of identification is acquired.
When the second signaling information is acquired, broadcast-data receiving device 200 obtains the IP address providing the broadcast packet of the broadcast service selected by user from the second signaling information.As mentioned above, the second signaling information can comprise the IP address of the broadcast packet providing each broadcast service.
Finally, the broadcast packet that broadcast-data receiving device 200 is obtained from the ensemble of access by process provides the broadcast service selected by user.
Suppose that user have selected the broadcast service #1 represented by service identifier #1 in the figure 7.
With reference to the first signaling information 710, in the ensemble #1 indicated by ensemble identifier #1, send the broadcast packet that broadcast service #1 is provided.Therefore, broadcast-data receiving device 200 obtains the second signaling information by calling-on signal group #1 (730-1).The IP address of the broadcast packet that broadcast service #1 is provided is identified from the second signaling information obtained, and by using the IP address identified to obtain broadcast packet.
Next, the broadcast packet that broadcast-data receiving device 200 is obtained by process provides broadcast service #1.
Fig. 8 illustrates the method providing broadcast service in broadcast-data receiving device 200 according to another exemplary embodiment of the present invention.
Fig. 8 illustrates the situation providing the broadcast packet of broadcast service to send at least two ensembles of ensemble 830-1, ensemble 830-2, ensemble 830-N.
Also suppose that user have selected the broadcast service #1 represented by service identifier #1 in fig. 8.
With reference to the first signaling information 810, the broadcast packet of broadcast service #1 is provided to send in ensemble #1 and ensemble #2.
In another exemplary embodiment of the present invention, all broadcast packets sent in ensemble #1 and ensemble #2 by process provide broadcast service #1.Selectively, broadcast service #1 is provided with low quality by only processing the broadcast packet sent in ensemble #1, or except the broadcast packet sent in ensemble #1, also provide broadcast service #1 to the broadcast packet sent in ensemble #2 with high-quality by process.
Broadcast-data receiving device 200 is by obtaining the second signaling information 831-1 from ensemble #1 (830-1) and obtaining from ensemble #2 (830-2) the IP address that the second signaling information 831-2 identifies broadcast packet.The IP address of the second signaling information 831-1 and the IP address of the second signaling information 831-2 can be included in service composition information 821, and service composition information 821 is included in main signal group 820.
Next, broadcast-data receiving device 200 obtains the broadcast packet for broadcast service #1 by the IP address that use obtains, and provides broadcast service #1 by processing described broadcast packet.
Fig. 9 illustrates the method providing broadcast service in broadcast-data receiving device 200 according to another exemplary embodiment of the present invention.Fig. 9 illustrates provides unprotect IP to serve the situation of (naked IP service) by least one ensemble in ensemble 930-1,930-2,930-N.
Suppose that user have selected unprotect IP in fig .9 and serve #1.
In whole specification, unprotect IP service refers to and processes broadcast packet by signaling informations different from common broadcast service on type of service and the service provided.A greater variety of service is provided by using unprotect IP service.
With reference to the first signaling information 910, the broadcast packet providing unprotect IP to serve #1 is provided in ensemble #N (930-N).In order to process the broadcast packet providing unprotect IP to serve, three signaling information different from the second signaling information is used in form.Therefore, at least one selection from the group comprising the first signaling information 910 and be included in the service composition information 921 main signal group 920 comprises the mark of instruction unprotect IP service and comprises the unprotect IP information on services of IP address of the 3rd signaling information.
In fig .9, IMT is illustrated as the example of the 3rd signaling information.Comprise and indicate the IMT of the information of the position of broadcast packet sent in ensemble to comprise map information between the position of the described broadcast packet in the IP address of broadcast packet and ensemble.
Broadcast-data receiving device 200 obtains IMT (931-N) by calling-on signal group #N (930-N).Next, broadcast-data receiving device 200 provides unprotect IP to serve #1 by obtaining the broadcast packet expected 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 creating unit 1020 and transmitting element 1030.
Information acquisition unit 1010 obtains the emergence message by broadcast-data receiving device preferential receipt.Variously emergence message can be set.Such as, emergence message can comprise such as about provide the information of the decoding of the broadcast packet of broadcast service by by the information that preferentially sends and any by by the information (such as accident information, Weather information etc.) preferentially sent.
Emergence message can comprise at least one that select from the group comprising following item: represent the type information of the type of emergence message, about the Short Description information of emergence message and the positional information that sends about the ensemble of the detailed description information of emergence message.
Type information is the information of the type of the data represented involved by emergence message.Such as, the information of which kind of type that type information can represent in accident information, digital copyright management (DRM) information and Weather information is sent out as emergence message.
Type information is represented by using " channel_type " field 432 in Fig. 4 B.In this case, Signal transmissions can be used rapidly about the information of the ensemble of transmission emergence message, and without the need to additional " description ".
Short Description information about emergence message can comprise and will be supplied to the text message of user.User can ask detailed description information after checked the Short Description information about emergence message.But when sending the detailed description information about emergence message by FIC, the bandwidth of FIC may be not enough to send detailed description information.Therefore, send the detailed description information about emergence message by use ensemble, and the information sent about the position of the ensemble of the detailed description information of emergence message can be included in signaling information.If user's request is about the detailed description information of emergence message, then the broadcast-data receiving device that will be described below uses the positional information sent about the ensemble of the detailed description information of emergence message to visit the ensemble of described transmission about the detailed description information of emergence message.
Ensemble identifier for id signal group can be used as the positional information of ensemble.
Information creating unit 1020 produces the signaling information comprising process and provide the necessary information of the broadcast packet of broadcast service and comprise emergence message.
Transmitting element 1030 sends signaling information by FIC.
Figure 11 is the block diagram of the broadcast-data receiving device 1100 according to another exemplary embodiment of the present invention.
Broadcast-data receiving device 1100 comprises information acquisition unit 1110 and processing unit 1120.
Information acquisition unit 1110 obtains signaling information from FIC.Signaling information can comprise process provides the necessary information of the broadcast packet of broadcast service and by the emergence message by broadcast-data receiving device 1100 preferential receipt.
Whether " channel_type " field 432 of the first signaling information in Fig. 4 B can indicating emergency information exist.
Emergence message can comprise by the information of broadcast-data receiving device preferential receipt (such as accident condition information, Weather information etc.) or the information about decoding broadcast bag.
Emergence message can comprise at least one that select from the group comprising following item: represent the type information of the type of emergence message, about the Short Description information of emergence message and the positional information that sends about the ensemble of the detailed description information of emergence message.
Processing unit 1120 obtains emergence message by processing signaling information.According to the type of emergence message, emergence message for the treatment of broadcast packet, or can be exported to user.Processing unit 1120 can also comprise output unit (not shown).If needed, emergence message exports to user by output unit.
When processing unit 1120 receives emergence message, the current broadcast service provided can be stopped, thus emergence message is preferentially exported.
Processing unit 1120 can comprise memory cell (not shown), output unit (not shown) and control unit (not shown).
When receiving emergence message, control unit stops providing current Broadcast Service, and control store unit stores the process information about the process of current Broadcast Service.Process information can comprise the information of any kind of the broadcast service for providing time-out.Such as, process information can comprise the next position of the current Broadcast Service provided and the data that produced during providing current Broadcast Service.
Next, output unit exports emergence message.
If if the emergency corresponding to emergence message stops or receive from user the request of termination, then control unit control output unit restarts the broadcast service providing time-out.
Figure 12 illustrates the grammer of the main body of the first signaling information according to an exemplary embodiment of the present invention.
In fig. 12, " num_of_descriptor " field 1210 represents the quantity of the emergence message sent in the first signaling information.
" label (tag) " field 1220 represents the type of emergence message.The example values of " label " field 1220 is defined in Table 1.
[table 1]
[table 1]
| 0x01 | Accident information |
| 0x02 | CAS/DRM decoded information |
| 0xxx | Retain |
With reference to table 1, when " label " field 1220 has value " 0x01 ", " FICdescriptor () " field 1230 represents accident information.In addition, when " label " field 1220 has value " 0x02 ", " FICdescriptor () " field 1230 represents CAS/DRM decoded information.
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.
" accident_main_type " field 1310 represents the information of the type about accident information.
" accident_sub_type " field 1320 represents the additional information of the type about accident information.Such as, " accident_main_type " field 1310 can represent higher level's kind of accident information, and " accident_sub_type " field 1320 can represent subordinate's kind of accident information.Such as, when " accident_main_type " field 1310 represents " natural accident ", " accident_sub_type " field 1320 can represent one that selects from the group comprising " flood ", " forest fire " and " earthquake ".
" ensemble_id " field 1330 represents the information of the position about the ensemble sending detailed failure information.In other words, represent that instruction sends the information of the ensemble of detailed failure information by 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 according to an exemplary embodiment of the present invention when " label " field 1220 has value " 0x02 ".
" segmentation_number " field 1410 represents the quantity of the segmentation when data are segmented.
" last_segment_number " field 1420 represents the numbering of the most back segment when data are segmented.
" key_stream_main_type " field 1430 represents the identification information of the data flow sending encryption key.
" key_stream_sub_type " field 1440 represents the additional identification information of the data flow sending encryption key.
" ensemble_id " field 1450 represents the indication information sent about the ensemble of the details of data decode.In other words, represent that instruction sends the information of the ensemble of the details about decoding by ensemble identifier.
" key_stream_length " field 1460 represents the length information of the data flow sending encryption key.
" key_stream " field 1470 represents the information about encryption key.
" additional_key_stream_descriptor_length " field 1480 represents the length information of the data flow sending additional keys flow descriptors.
" additional_key_stream_descriptor () " field 1490 represents the additional information about encryption key.
Figure 15 illustrates the example of the configuration of FIC channel and ensemble according to an exemplary embodiment of the present invention.
FIC 1510 comprises the first signaling information, and described first signaling information comprises the first signaling information head and the first signaling information main body.First signaling information can comprise by the emergence message by broadcast-data receiving device preferential receipt or for the treatment of the information of broadcast packet providing broadcast service.
In fig .15, when the first signaling information provides accident information, in the ensemble with identifier " 0x02 ", the details about accident information are sent.
Ensemble #1 1520 comprises service composition information.Index signal group #11520 is carried out by the first signaling information.
In fig .15, broadcast channel information is corresponding to service composition information.Broadcast channel information comprises broadcast channel numbers 1521, broadcast channel title 1522, broadcast channel state 1523 and broadcast channel Class1 524.
Ensemble #N 1530 sends the broadcast service corresponding to broadcast channel 20-1.
Figure 16 illustrates the example according to the FIC 1610 of another exemplary embodiment of the present invention and the configuration of ensemble.
In figure 16, the first signaling information provides decoded information.In the ensemble with identifier " 0x03 ", send the detailed description of decoded information, and in the ensemble with identifier " 0x03 ", " 0x04 ", " 0x05 " and " 0x06 ", send encrypted data flow respectively.
Figure 17 is the flow chart of broadcast data transmitting method according to an exemplary embodiment of the present invention.
At operation S1710, produce the service composition information of the broadcast service using the broadcast packet sent by least one channel to provide.
At operation S1720, produce instruction and will send the first signaling information of the ensemble of service composition information.
At operation S1730, send broadcast packet, service composition information and the 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 the first signaling information that instruction sends the ensemble of the composition information of broadcast service.Service composition information refers to the composition information by using the broadcast packet sent through at least one channel and the broadcast service provided.
At operation S1820, obtain service composition information based on the first signaling information.
At operation S1830, provide broadcast service based on service composition information and the first signaling information.
Figure 19 is the flow chart of the broadcast data transmitting method according to another exemplary embodiment of the present invention.
At operation S1910, obtain by the emergence message of broadcast-data receiving device preferential receipt.Emergence message can comprise at least one that select from the group comprising following item: accident condition information, Weather information and the information about broadcast packet decoding.Emergence message can comprise at least one that select from the group comprising following item: represent the type information of the type of emergence message, about the Short Description information of emergence message and the positional information that sends about the ensemble of the detailed description information of emergence message.
At operation S1920, produce signaling information, described signaling information comprises process to be provided the necessary information of the broadcast packet 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 provides the broadcast packet of broadcast service necessary information by by the emergence message of preferential receipt and process.
At operation S2020, obtain emergence message from signaling information.
Exemplary embodiment of the present can be written as computer program and can come to perform in the general purpose digital computer of executive program at use computer readable recording medium storing program for performing.
The example of computer readable recording medium storing program for performing comprises magnetic storage medium (such as, ROM, floppy disk, hard disk etc.) and optical record medium (such as, CD-ROM or DVD).
Although specifically shown with reference to exemplary embodiment of the present and described the present invention, but those of ordinary skill in the art will understand, when not departing from the spirit and scope of the present invention be defined by the claims, the various changes in form and details can be carried out to it.Exemplary embodiment should be considered to be only describing significance, and is not used in restriction object.Therefore, scope of the present invention is not limited by detailed description of the present invention, but is limited the scope of the invention by claim, and all difference within the scope of this will be interpreted as comprising in the present invention.
Claims (18)
1. a broadcast data transmitting method, comprising:
Produce the service composition information of broadcast service, described broadcast service is provided using at least one broadcast packet sent by least one channel, and wherein, service composition information comprises the information about broadcast service;
Produce the first signaling information, the first signaling information instruction will send the ensemble of service composition information, and wherein, ensemble is data transmission unit;
Send at least one broadcast packet described, service composition information and the first signaling information,
Wherein, the first signaling information comprises the identification number of the ensemble sending service composition information.
2. the method for claim 1, wherein, serve composition information and comprise at least one that select from the group comprising following item: for broadcast service service identifier, represent the genre information of school of broadcast service and the information of the supplier about broadcast service.
3. the method for claim 1, also comprises: for each ensemble produces the second signaling information, and described second signaling information comprises the information for the treatment of at least one broadcast packet will sent in each ensemble,
Wherein, described forwarding step also comprises: in each ensemble, send the second signaling information.
4. method as claimed in claim 3, wherein, the first signaling information comprises the internet protocol address of the second signaling information.
5. the method for claim 1, wherein the first signaling information comprises the map information between broadcast service and ensemble, in described ensemble, provide at least one broadcast packet described in described broadcast service by transmission.
6. the method for claim 1, wherein the first signaling information comprises the version information of service composition information.
7. the method for claim 1, wherein described forwarding step comprises: the service that sends in the ensemble indicated by the first signaling information forms information, and sends the first signaling information by fast information channel in dab receiver.
8. a broadcast data receiving method, comprising:
Obtain the first signaling information, described first signaling information instruction sends the ensemble of the service composition information of broadcast service, and wherein, ensemble is data transmission unit;
Service composition information is obtained based on the first signaling information;
Broadcast service is provided based on service composition information and the first signaling information,
Wherein, service composition information is the information of the composition about the broadcast service that will the broadcast packet sent by least one channel used to provide,
Wherein, the first signaling information comprises the identification number of the ensemble sending service composition information.
9. method as claimed in claim 8, wherein, serve composition information and comprise at least one that select from the group comprising following item: for broadcast service service identifier, represent the genre information of school of broadcast service and the information of the supplier about broadcast service.
10. method as claimed in claim 8, wherein, provides the step of broadcast service to comprise:
Create the list of the broadcast service provided based on service composition information;
Control the display of the list of broadcast service;
If have selected one of broadcast service in list, then access sends the ensemble providing the broadcast packet of the broadcast service of selection.
11. methods as claimed in claim 10, wherein, provide the step of broadcast service also to comprise:
Obtain the second signaling information from each ensemble, described second signaling information comprises the information of the broadcast packet for the treatment of the broadcast service providing selection;
The second signaling information process is used to provide the broadcast packet of the broadcast service of selection.
12. methods as claimed in claim 11, wherein, the first signaling information comprises the IP address of the second signaling information.
13. methods as claimed in claim 8, also comprise:
Store at least one that select from the group comprising following item: service composition information and the first signaling information;
Based on from described comprise service composition information and the first signaling information group in select described at least one creates the list of the broadcast service provided.
14. methods as claimed in claim 8, wherein, the first signaling information also comprises: broadcast service and transmission provide the map information between the ensemble of the broadcast packet of described broadcast service.
15. methods as claimed in claim 8, wherein, the first signaling information also comprises the version information of service composition information.
16. methods as claimed in claim 8, wherein, the step obtaining the first signaling information comprises: obtain the first signaling information by fast information channel in dab receiver.
17. 1 kinds of broadcast data transmitting apparatus, comprising:
Service composition information creating unit, produce the service composition information of the broadcast service using the broadcast packet sent by least one channel to provide, wherein, service composition information comprises the information about broadcast service;
Signaling information generation unit, produces the first signaling information, and the first signaling information instruction will send the ensemble of service composition information, and wherein, ensemble is data transmission unit;
Transmitting element, sends broadcast packet, service composition information and the first signaling information,
Wherein, the first signaling information comprises the identification number of the ensemble sending service composition information.
18. 1 kinds of broadcast-data receiving devices, comprising:
Signal message acquiring unit, obtains the first signaling information, and described first signaling information instruction sends the ensemble of the service composition information of broadcast service, and wherein, ensemble is data transmission unit;
Service composition information acquisition unit, obtains service composition information based on the first signaling information;
Service rendering units, provides broadcast service based on service composition information and the first signaling information,
Wherein, the broadcast packet sent by least one channel is used to provide broadcast service,
Wherein, the first signaling information comprises the identification number of the ensemble sending service composition information.
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| KR1020090057197A KR101575632B1 (en) | 2008-08-20 | 2009-06-25 | Method and apparatus for transmitting broadcast data and method and apparatus for receiving broadcast data |
| 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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| CA2837053C (en) | 2011-05-25 | 2016-12-06 | Lg Electronics Inc. | Transmitting/receiving system and method for processing a broadcasting signal |
| CA2851607C (en) * | 2011-10-20 | 2018-02-06 | Lg Electronics Inc. | Broadcast service receiving method and broadcast service receiving apparatus |
| WO2015016664A1 (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 |
| WO2016072725A1 (en) * | 2014-11-04 | 2016-05-12 | 엘지전자 주식회사 | Broadcasting signal transmission device, broadcasting signal reception device, broadcasting signal transmission method, and broadcasting signal reception method |
| CN105830459B (en) | 2014-11-20 | 2019-06-18 | Lg电子株式会社 | The equipment for sending broadcast singal, the equipment for receiving broadcast singal, the method for sending broadcast singal and the method for receiving broadcast singal |
| CN109274509B (en) * | 2018-08-22 | 2021-03-12 | Oppo广东移动通信有限公司 | Broadcast state determination method and device, electronic equipment and storage medium |
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| KR100713427B1 (en) * | 2005-06-14 | 2007-05-04 | 삼성전자주식회사 | Digital multimedia broadcastingdmb data reception apparatus and method for improving dmb data reception speed |
| KR20070027070A (en) * | 2005-08-29 | 2007-03-09 | 삼성전자주식회사 | Apparatus and method for transmitting and receiving of broadcasting and communication combined service information |
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| CA2732953A1 (en) | 2010-02-25 |
| CN102132560A (en) | 2011-07-20 |
| KR20100022912A (en) | 2010-03-03 |
| CA2732953C (en) | 2014-04-08 |
| CN103220059A (en) | 2013-07-24 |
| FI20115081L (en) | 2011-01-27 |
| MX2011001630A (en) | 2011-03-28 |
| KR101575632B1 (en) | 2015-12-08 |
| CN103220059B (en) | 2016-07-06 |
| DE112009002041T5 (en) | 2011-07-14 |
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