CN101822009B - Method and apparatus for broadcast data transmission, method and apparatus for broadcast data reception - Google Patents

Method and apparatus for broadcast data transmission, method and apparatus for broadcast data reception Download PDF

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Publication number
CN101822009B
CN101822009B CN2008801107738A CN200880110773A CN101822009B CN 101822009 B CN101822009 B CN 101822009B CN 2008801107738 A CN2008801107738 A CN 2008801107738A CN 200880110773 A CN200880110773 A CN 200880110773A CN 101822009 B CN101822009 B CN 101822009B
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package
transmission channel
data
additional information
information
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Chinese (zh)
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CN101822009A (en
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朴晟一
柳佳铉
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/93—Arrangements characterised by the broadcast information itself which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/73—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5069—Address allocation for group communication, multicast communication or broadcast communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/561—Adding application-functional data or data for application control, e.g. adding metadata
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Library & Information Science (AREA)
  • Multimedia (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Provided are a method and apparatus for transmitting broadcast data and a method and apparatus for receiving broadcast data so as to provide a broadcast service. The method of transmitting broadcast data includes: receiving at least one Internet Protocol (IP) packet group, the IP packet group classified based on a service provided by IP packets; generating first mapping information which indicates mapping information between an IP address corresponding to each of the at least one IP packet and an address within a transmission channel on which each of the at least one IP packet group is to be carried; and transmitting the first mapping information and the at least one IP packet group via the transmission channel. A user accesses only desired IP packets quickly and processes them so that a data processing speed can be improved.

Description

The method and apparatus that the method and apparatus that broadcast data sends, broadcast data receive
Technical field
The present invention relates to a kind of method and apparatus of broadcast data and method and apparatus that receives broadcast data of sending, more particularly, relate to a kind of method and apparatus of broadcast data and method and apparatus that receives broadcast data of sending, so that the broadcast service according to Open Mobile Alliance-broadcasting (OMA-BCAST) standard to be provided.
Background technology
Recently, provide various additional data services (for example, weather, traffic, amusement and image etc.) and become with the digital broadcasting of the corresponding high quality audio service of sound quality of compact disk (CD) to be widely current.Specifically, use the broadcast technology of digital broadcasting to be concerned with mobile device.
In Advanced Television Systems Committee (ATSC), defined the general sideband of 8 grades (VSB) transmission system of digital broadcasting, and with the more high level format of senior residual sideband (VSB) system as 8-VSB.In the 8-VSB transmission system, use 8 steps level of signal processed and general sideband modulation technique, according to the Moving Picture Experts Group-2 compressing image signal, and according to AC-3 standard compression voice signal.In this method, differently use 18 kinds of signal formats.Therefore, can transmit simultaneously the broadcasting of several channels.
Simultaneously, because the development of digital transmission technology provides the broadcast communication converged services of broadcast service and communication service to be concerned by using identical terminal unit.In Open Mobile Alliance-broadcasting (OMA-BCAST) standard, the bag by internet protocol-based (IP) provides content to terminal, and can be through communication network and the content that provides through the radio network transmission.
Yet, in the situation that through the radio network transmission package, can not easily search for the position with obtained bag.Therefore, the legacy equipment that is used for the reception broadcast data receives all and wraps, and then passes through to use the bags that extraction is expected from the bag of reception such as header of bag.Therefore, in the broadcast system of the position of the data that must determine fast and process expectation, use the legacy equipment that is used for receiving broadcast data very inconvenient.
Specifically, in the OMA-BCAST standard, defined the service guide (SG) of the additional information (for example, electronic program guides (EPG)) that is used for providing relevant with broadcast service and be used for providing SG bulletin about the metadata of SG.Must sequentially process the bag that comprises the SG bulletin and the bag that comprises SG, thereby the broadcast service of expectation can be provided effectively to the user.Yet, in the conventional broadcast system of position of the bag that can not easily determine expectation, provide very inconvenient according to the broadcast service of OMA-BCAST standard to the user.
Summary of the invention
Technical problem
Provide broadcast service very inconvenient according to the OMA-BCAST standard to the user.
Technical scheme
The invention provides a kind of method and apparatus of effective supply Internet protocol (IP) service in Advanced Television Systems Committee (ATSC) transmission system.
Beneficial effect
Be used for according to an exemplary embodiment of the present invention sending the method and apparatus of broadcast data and the method and apparatus that is used for receiving broadcast data, the first map information is provided, the user can only access the IP package of expectation rapidly, and it is processed, thereby can improve data processing speed.
In addition, provide the broadcast service according to the OMA-BCAST standard, so that utilize the scope of A-VSB transmission system extended.
Combination and additional information in addition, provide combination and additional information, so that can effectively be transferred to the user.
In addition, use the first map information and the second map information, so that can effectively be obtained according to the SG of OMA-BCAST standard.
Description of drawings
By the detailed description of reference accompanying drawing to exemplary embodiment of the present, it is clearer that above and other features and advantages of the present invention will become, wherein:
Fig. 1 illustrates according to an exemplary embodiment of the present invention the protocol stack of senior residual sideband (A-VSB) transmission system that is used for providing Internet protocol (IP) service;
Fig. 2 illustrates the according to an exemplary embodiment of the present invention grammer of IP mapping table (IMT);
Fig. 3 illustrates the method that broadcast service is provided according to an exemplary embodiment of the present invention;
The method that provides according to an exemplary embodiment of the present invention based on the broadcast service of Open Mobile Alliance-broadcasting (OMA-BCAST) standard is provided Fig. 4;
Fig. 5 illustrates according to an exemplary embodiment of the present invention obtaining based on service guide (SG) of OMA-BCAST standard;
Fig. 6 illustrates the equipment that is used for sending according to an exemplary embodiment of the present invention broadcast data;
Fig. 7 illustrates the equipment that is used for receiving according to an exemplary embodiment of the present invention broadcast data;
Fig. 8 illustrates the according to an exemplary embodiment of the present invention detailed structure of the IP package acquiring unit of Fig. 7;
Fig. 9 is the flow chart that the method that sends according to an exemplary embodiment of the present invention broadcast data is shown; And
Figure 10 is the flow chart that the method that receives according to an exemplary embodiment of the present invention broadcast data is shown.
Preferred forms
According to an aspect of the present invention, a kind of method that sends broadcast data is provided, described method is by using IP (Internet protocol) bag that broadcast service is provided, and described method comprises: receive at least one IP package, divide described IP package based on the service that provides by the IP bag; Produce the first map information, each corresponding IP address of the indication of described the first map information and described at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package; And send the first map information and described at least one IP package through described transmission channel.
Described transmission channel can be the channel that is used for the transmission of data in senior residual sideband (A-VSB) system be used to transmitting.
Described transmission channel can be the data transmission channel for the transmission of data, can comprise at least one the IP package that sends through data transmission channel for the additional information IP package that the additional information relevant with broadcast service is provided and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
Described method also can comprise: produce the second map information, the indication of described the second map information and metadata IP package corresponding IP address and will carry map information between the data transmission channel of metadata IP package; And the signaling information transmission channel through being used for command transmitting information sends the second map information, and wherein, described signaling information is the required information of sending and receiving broadcast data.
Described method also can comprise: send the first additional information IP package and the second additional information IP package, wherein, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, the additional information relevant with the secondary broadcast service that provides through the second transmission channel and combination and additional information transmission channel is provided described the second additional information IP package, and described combination is used for transmission combination and the additional information relevant with broadcast service with the additional information transmission channel.
Additional information IP package can provide the service guide (SG) according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package can provide the SG bulletin according to OMA BCAST standard.
Described transmission channel can comprise will carry at least one sub-data channel of at least one IP bag, the address in the data transmission channel is each position mapping table (LMT) call number of position of sub-data channel that indication will be carried described at least one IP package.
According to a further aspect in the invention, a kind of method that receives broadcast data is provided, described method is by using IP (Internet protocol) bag that broadcast service is provided, described method comprises: obtain the first map information from transmission channel, each corresponding IP address of the indication of described the first map information and at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package, wherein, divide described at least one IP package based on the service that is provided by the IP bag; And obtain selectively the IP package of wanting based on the first map information from described at least one IP package.
Described transmission channel can be the channel that is used for the transmission of data in senior residual sideband (A-VSB) system.
Described transmission channel can be the data transmission channel for the transmission of data, can comprise at least one the IP package that sends through data transmission channel for the additional information IP package that the additional information relevant with broadcast service is provided and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
The step of obtaining selectively the IP package can comprise: obtain metadata IP package by using the first map information from data transmission channel; The metadata IP package that processing is obtained is to obtain the address with the corresponding IP of additional information IP package; And by using the first map information and the IP address that obtains to obtain additional information IP package from data transmission channel.
Described at least one IP package through the data transmission channel transmission can comprise be used at least one data I P package that broadcast service is provided, the step of obtaining selectively the IP package can comprise: process the additional information IP package that obtains, to obtain the address with the corresponding IP of data I P package; And by using the first map information and from described at least one data packet group, obtaining selectively the data packet group of wanting with the corresponding IP of data I P package address.
Described method also can comprise: obtain the second map information of the map information between indication and metadata IP package corresponding IP address and the data transmission channel from the signalling channel that is used for command transmitting information, described signaling information is the required information of sending and receiving broadcast data; And obtain the data transmission channel that carries metadata IP package based on the second map information, wherein, the step of obtaining the first map information comprises: obtain the first map information from the precalculated position of the data transmission channel of access.
Additional information IP package can provide the SG according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package can provide the SG bulletin according to OMA BCAST standard.
Described transmission channel can be for transmitting the combination relevant with broadcast service and combination and the additional information transmission channel of additional information, to can comprise the first additional information IP package and the second additional information IP package through at least one IP package of combination and additional information transmission channel, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, and the additional information relevant with the secondary broadcast service that provides through the second data transmission channel is provided described the second additional information IP package.
Described transmission channel can comprise at least one sub-data channel that carries at least one IP bag, and the address in the data transmission channel is each the LMT call number of position of sub-data channel that indication will be carried described at least one IP package.
According to a further aspect in the invention, a kind of equipment that sends broadcast data is provided, described equipment is by using IP (Internet protocol) bag that broadcast service is provided, described equipment comprises: receiving element, receive at least one IP package, divide described IP package based on the service that provides by the IP bag; The first map information generation unit, produce the first map information, each corresponding IP address of the indication of described the first map information and described at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package; And transmitting element, send the first map information and described at least one IP package through described transmission channel.
According to a further aspect in the invention, a kind of equipment that receives broadcast data is provided, described equipment is by using IP (Internet protocol) bag that broadcast service is provided, described equipment comprises: the first map information acquiring unit, obtain the first map information from transmission channel, each corresponding IP address of the indication of described the first map information and at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package, wherein, divide described at least one IP package based on the service that is provided by the IP bag; And IP package acquiring unit, obtain selectively the IP package of wanting based on the first map information from described at least one IP package.
Embodiment
The application require on October 9th, 2007 United States Patent and Trademark Office submit to the 60/978th, the interests of No. 488 U.S. Provisional Applications and the 10-2008-0002954 korean patent application submitted in Korea S Department of Intellectual Property on January 10th, 2008, described application is contained in this by reference fully.
Now with reference to accompanying drawing the present invention is described more fully, exemplary embodiment of the present invention shown in the drawings.
Fig. 1 illustrates the protocol stack that use Internet protocol (IP) bag provides the A-VSB transmission system of broadcast service that passes through according to the embodiment of the invention.
In Fig. 1, provide broadcast service by using the IP bag, wherein, according to Open Mobile Alliance-broadcasting (OMA-BCAST) standard the IP bag is packed.
By wrapping with the IP that produces according to the OMA-BCAST standard for the data that broadcast service is provided.According to service the IP bag that produces is divided into groups.Service comprises at least one service component.As simple examples, audio/video (A/V) service comprises audio service and Video service.In this case, the IP bag that produces can be grouped into be used to the IP package that audio service is provided with for the 2nd IP package that Video service is provided.Each IP package has corresponding IP address.In other words, belong to purpose IP address or the source IP address of IP bag of identical IP package identical.In this manual, according to the embodiment of the invention, the IP package represents at least one continuous bag, and can be used for representing IP stream or IP pseudo channel etc.
The form difference of the transmission package of regulation in the form of IP bag and the senior VSB mobile broadcast (A-VSB MCAST) (below, be called MCAST).Therefore, in covering, the IP that adjustment will be used in the MCAST system wraps, and head is added in these IP bags.In addition, in covering, signaling information and IP bag are separated packing.Signaling information comprises the required information that transmits and receive data.
When carrying the IP bag, the MCAST transmission channel transmits described IP bag.The MCAST transmission channel comprises for the sub-data channel of at least one IP bag of transmission, transmit described IP package when sub-data channel carries the IP package.Each transmission channel comprises the sub-data channel for command transmitting information.After a while the IP mapping table that is described (below, be called IMT) is present in the sub-data channel for command transmitting information, can classifies to the sub-data channel of the IP package that only carries expectation by using IMT, and can process described sub-data channel.Describe the method for using IMT to process the IP package of expectation in detail with reference to Fig. 3 to Fig. 5.
The MCAST system comprises that separately transmission is used for the transmission channel of the required signaling information of sending and receiving broadcast data.In this manual, the transmission channel for command transmitting information is called as signaling information channel (SIC).Necessary information for the treatment of other transmission channels is included among the SIC.
SIC comprises the details about transmission channel, and the example of described information comprises the positional information, timeslice information of the transmission channel in the IMT, transmission frame and about the decoded information of each transmission channel.Below, the IMT that is present among the SIC is called as i-IMT, to distinguish mutually with the IMT that is present in other transmission channels.
Fig. 2 illustrates the grammer according to the IMT of the embodiment of the invention.
Whether extended_version indication IP_mapping_table () is updated.If the value of extended_version is " 0 ", represent that then IP_mapping_table () is not updated.
The quantity of number_of_channel indication transmission channel.After a while the metadata IP package of describing is included in each transmission channel.Therefore, the quantity of the quantity of metadata IP package and transmission channel is identical or greater than the quantity of transmission channel.
Reference_ch_flag indicates whether corresponding transmission channel is for transmitting the combination relevant with broadcast service and combination and the additional information transmission channel of additional information.If the value of reference_ch_flag is " 1 ", then corresponding transmission channel is combination and additional information transmission channel.As example, on the normal transmission channel, only carry the part of electronic service guidebooks (ESG) information.Yet all ESG information of transmission can be included in combination and the additional information transmission channel.By this way, combination and additional information transmission channel are the reference channels of other transmission channels.
Reservation is the zone of reserving for the situation that the grammer change occurs.
Turbo_channel_id is the identifier for the identification transmission channel.
The position that the sub-data channel of IP package is carried in the LMT_Idex_number indication.Position mapping table (LMT) call number is assigned to each sub-data channel.Because the value representation LMT call number of LMT_Index_number, so the position of sub-data channel that can be by determining to carry the IP package with the value of LMT_Index_number.
The quantity of number_of_IP_ch_descriptor indication IP_channel_descriptor ().It is identical with the quantity of the IP package that carries on the transmission channel.
IP_channel_descriptior () comprises the additional description of IP package.IP_channel_descriptior () provide with the corresponding IP address table of IP package, with the simple description of the corresponding mac address table of IP package and IP package.Can will be used as the IP address of in the IP address table, using according to one in the IP address of IPv4 standard and IPv6 standard.
Fig. 3 illustrates the method that broadcast service is provided according to the embodiment of the invention.In Fig. 3, the IP package is divided into data I P package, additional information IP package and metadata IP package.Data I P package is the set that comprises be used to the IP bag of the data that broadcast service is provided.Additional information IP package is be used to the set that provides about the IP bag of the additional information of broadcast service.In addition, metadata IP package is be used to the set that provides about the IP bag of the metadata of additional information IP package.
The equipment that is used for the reception broadcast data is at first accessed SIC.SIC comprises i-IMT, in i-IMT, comprise with the corresponding IP of each metadata IP package address, with in which transmission channel, carry the relevant information of which metadata IP package and the information relevant with each metadata IP package etc.Following table 1 is be used to illustrating from the table of the information of i-IMT extraction.
Table 1
The IP address The identifier of transmission channel The simple description
1.1.1.1 1 Kbs1, Monday, broadcasting formed table
1.1.2.1 2 Kbs2, Tuesday, broadcasting formed table
1.1.3.1 3 Kbs3, Monday, broadcasting formed table
1.1.4.1 4 Kbs4, Monday, broadcasting formed table
With reference to table 1, there are 4 metadata IP packages.The metadata IP package that carries at the first transmission channel comprises and the broadcast related composition information that provides through the kbs1 base station on Monday, and the metadata IP package that carries on the second transmission channel comprises and the broadcast related composition information that provides through the kbs1 base station on Tuesday.
The equipment that is used for the reception broadcast data shows the simple description of each metadata IP package, to help user selection.If the metadata IP package that user selection is predetermined, the equipment that then is used for the reception broadcast data comprises the transmission channel of the metadata IP package of user selection by reference i-IMT access.Below, supposing provides the situation of composition information about broadcasting through the kbs2 base station to the user on Monday.With reference to table 1, with the corresponding IP of the metadata IP package address of user selection be 1.1.3.1, carry the metadata IP package of user selection at the 3rd transmission channel.
Be used for receiving device access the 3rd transmission channel of broadcast data to obtain IMT.The sub-data channel that is used for command transmitting information in the 3rd transmission channel carries IMT.IMT comprises the information relevant with the physical location of carrying all IP packages that are present in the 3rd transmission channel.Following table 2 is be used to illustrating from the table of the information of IMT extraction.
Table 2
The IP address The IMT call number
1.1.3.1 5
1.1.3.2 6
1.1.3.3 7
1.1.3.4 8
1.1.3.5 9
1.1.3.6 10
1.1.3.7 11
1.1.3.8 12
1.1.3.9 13
Whether the equipment that is used for the reception broadcast data is " 1.1.3.1 " from the definite corresponding IP of the metadata IP package address with user selection of i-IMT.With reference to table 2, carry the IP package with IP address " 1.1.3.1 " at the sub-data channel with LMT call number " 5 ".The device access that is used for the reception broadcast data has the sub-data channel of LMT call number (being labeled as the IMT call number at table 2) " 5 ", with the process IP bag.
Simultaneously, metadata IP package provides the metadata relevant with additional information IP package.In other words, metadata IP package comprises the information relevant with the corresponding IP of additional information IP package address.The IP that comprises for the device processes metadata IP package that receives broadcast data wraps, to obtain the address with the corresponding IP of additional information IP package.Suppose that with the corresponding IP of additional information IP package address be " 1.1.3.2 ", " 1.1.3.3 " and " 1.1.3.4 ".
Be used for receiving the equipment of broadcast data by using the IMT access to carry the sub-data channel of additional information IP package, to obtain the IP bag.With reference to table 2, carry additional information IP package at the sub-data channel with LMT call number " 6 ", " 7 " and " 8 ".The device access that is used for the reception broadcast data has the sub-data channel of LMT call number " 6 ", " 7 " and " 8 ", with the process IP bag.Additional information IP package comprises the IP address be used to the data I P package that broadcast service is provided.
Be used for receiving the device processes additional information IP package of broadcast data, form information to be combined in Monday by the broadcasting that the kbs2 base station provides.The broadcasting that shows combination forms information, to help user selection.If user selection with the broadcast service that is provided, then is used for receiving the equipment of broadcast data by using the IP address and the IMT that extract from additional information IP package to visit the sub-data channel that carries corresponding data IP package.Subsequently, process the IP bag that carries on the corresponding sub-data channel, to provide broadcast service to the user.
According to the present invention, only extract selectively and process the IP bag of expectation, specifically, can provide the broadcast service according to the OMA-BCAST standard.
The method based on the broadcast service of OMA-BCAST standard of providing according to the embodiment of the invention is provided Fig. 4.
In Fig. 4 and Fig. 5, the service guide transfer channel (below, be called the SG transfer channel) corresponding to additional information IP package, service guide bulletin channel (below, be called SG bulletin channel) corresponding to metadata IP package.
At operation S410, be used for receiving the device access SIC 401 of broadcast data to obtain i-IMT.Then, be used for receiving the equipment of broadcast data by using the i-IMT access to carry the transmission channel of the SG bulletin channel that will be acquired.
Suppose to carry the SG bulletin channel that will be acquired at the first transmission channel 402, wherein, described the first transmission channel 402 is the data transmission channels for the transmission of data.
At operation S420, be used for receiving device access first transmission channel 402 of broadcast data, from the sub-data channel 411 that carries signaling information, to obtain IMT.After the device access that is used for the reception broadcast data carried the sub-data channel 412 of SG bulletin channel, the IMT that described equipment obtains by use processed the IP bag that carries.Process if IP is coated, then obtain the address with the corresponding IP of SG transfer channel.
At operation S430, the device access that be used for to receive broadcast data carries the sub-data channel 413 and 414 of SG transfer channel, and the IP address and the IMT process IP bag that obtain by use.If sub-data channel 413 and 414 is processed, then obtain and the corresponding IP of the data I P package address that broadcast service is provided.
At operation S440, the device access that be used for to receive broadcast data carries the sub-data channel 415 of the data I P package of expectation, and the IP address and the IMT process IP bag that obtain by use, so that broadcast service to be provided.
Now, will be described in the situation of carrying the SG bulletin channel that will be acquired on the second transmission channel 403, described the second transmission channel 403 is for transmitting the combination relevant with broadcast service and combination and the additional information transmission channel of additional information.Suppose to form information in the broadcasting that each transmission channel carried one day.If the user asks the broadcasting in a week to form information, the equipment that then is used for the reception broadcast data must be accessed each channel, and the broadcasting of obtaining every day forms information, and the broadcasting of then making up a week forms information.For fear of this inconvenience, be carried at the broadcasting composition information in the week that other channels carry at combination and additional information transmission channel.Therefore, if the user asks the broadcasting in a week to form information, then be used for receiving device access combination and the additional information transmission channel of broadcast data, form information with the broadcasting of obtaining a week.
The above has mentioned operation S410 to S430, therefore will omit being repeated in this description it.
At operation S450, the sub-data channel 415 that the IP address that the equipment utilization that be used for to receive broadcast data is obtained by treatment S G transfer channel and IMT visit the data I P package that carries expectation.Simultaneously, data I P package may be not included in combination and the additional information transmission channel 403.In this case, the sub-data channel 415 that carries described data I P package can be included in other data transmission channels.Therefore, be used for receiving addressable other data transmission channels of equipment of broadcast data, with processing said data IP package.
Fig. 5 illustrates the obtaining based on the SG of OMA-BCAST standard according to the embodiment of the invention.
Suppose that the broadcasting that the user wants to check one day forms information.The broadcasting that is provided for the user is formed information be carried at the first transmission channel 501, and be transmitted.
The equipment that is used for the reception broadcast data obtains IMT from the sub-data channel 510 for the signaling information that transmits the first transmission channel 501.Be used for receiving the equipment of broadcast data by using the IMT access to carry the sub-data channel 520 of SG bulletin channel.IP bag in the sub-data channel 520 provides the metadata relevant with the SG transfer channel.Process the IP bag in the sub-data channel 520, and obtain the address with the corresponding IP of SG transfer channel.
Be used for receiving the equipment of broadcast data by using the access of IMT and IP address to carry the sub-data channel 530,540 and 550 of SG transfer channel.Sub-data channel 530 provides from the broadcasting of 00:00 to 08:00 time period and forms information, and sub-data channel 540 provides from the broadcasting of 08:00 to 16:00 time period and forms information, and sub-data channel 550 provides from the broadcasting of 16:00 to 24:00 time period and forms information.
Be used for receiving the device processes sub-data channel 530,540 and 550 of broadcast data, and the broadcasting of obtaining one day by combination sub-data channel 530,540 and 550 forms information.
Fig. 6 illustrates the equipment that is used for sending broadcast data according to the embodiment of the invention.
With reference to Fig. 6, the equipment 600 that is used for the transmission broadcast data comprises receiving element 610, the first map information generation unit 620 and transmitting element 630.Be used for sending the equipment 600 of broadcast data by using the IP bag that broadcast service is provided.
Receiving element 610 receives at least one IP package.Can be based on the service that is provided by the IP bag with described at least one IP package classification.The IP bag that belongs to identical IP package has identical destination (or sending the place).The additional information IP package of the additional information that the IP package comprises be used to the data I P package that broadcast service is provided, be used for providing relevant with broadcast service, be used for providing the Metadata about metadata IP package relevant with additional information IP package.IP bag can be for guaranteeing that bag, the additional information IP package of observing OMA BCAST standard provide the SG based on OMA BCAST standard, and metadata IP package can provide the SG bulletin based on the OMABCAST standard.
The first map information generation unit 620 produces the first map information, each corresponding IP address in described the first map information indication and at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package.When the equipment 600 that be used for to send broadcast data when the A-VSB transmission system sends the first map information, transmission channel comprises at least one sub-data channel that will carry at least one IP bag.Each IP package is carried on the sub-data channel, and is sent out.The LMT call number is the information of position of indication sub-data channel, by the address of will carry in the transmission channel of IP package is provided with the LMT call number.In the A-VSB transmission system, the first map information refers to be shown in the information of carrying which IP package on which sub-data channel.
Transmitting element 630 sends the first map information and at least one IP package through transmission channel.In the A-VSB system, transmission channel is the turbo channel.With transmission channel be divided into data transmission channel for the transmission of data, be used for transmission comprise after a while the second map information that will describe signaling information the signaling information transmission channel, be used for the transmission combination relevant with broadcast service and combination and the additional information transmission channel of additional information.Transmitting element 630 can send the first map information, metadata IP package and at least one additional information IP package through data transmission channel.
The equipment 600 that is used for the transmission broadcast data also can comprise the second map information generation unit 640.The second map information generation unit 640 produces the second map information, the map information between described the second map information indication and metadata IP package corresponding IP address and the data transmission channel.In other words, the second map information is the information which metadata IP package which transmission channel of indication carries.
If produced the second map information, then transmitting element 630 sends the second map information through the signaling information transmission channel.The signaling information transmission channel is the channel for command transmitting information, and described signaling information is the required information of sending and receiving broadcast data.
Transmitting element 630 can send combination and the additional information relevant with broadcast service with the additional information transmission channel through combination.Combination and additional information channel send the additional information IP package that comprises in two or more transmission channels through a channel.As example, send together the first additional information IP package and the second additional information IP package through the additional information transmission channel.In this case, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided the first additional information IP package, and the additional information relevant with the secondary broadcast service that provides through the second data transmission channel is provided the second additional information IP package.
Fig. 7 illustrates the equipment 700 that is used for receiving broadcast data according to the embodiment of the invention.
With reference to Fig. 7, the equipment 700 that is used for the reception broadcast data comprises the first map information acquiring unit 710 and IP package acquiring unit 720.
The first map information acquiring unit 710 obtains the first map information from transmission channel, each corresponding IP address of the indication of described the first map information and at least one IP package and will carry map information between the interior address of each transmission channel of at least one IP package.
During the channel of the transmission of data, transmission channel comprises at least one sub-data channel that carries at least one bag in transmission channel is the A-VSB transmission system.In this case, the first map information can be carried at the sub-data channel for command transmitting information, and can be sent out.The first map information comprises with each IP package whether be carried at information relevant on the sub-data channel.
IP package acquiring unit 720 based on the first map information from through at least one IP package of transmission channel, only obtaining the IP package.The additional information IP package of the additional information that described at least one IP package can comprise be used at least one data I P package that broadcast service is provided, be used for providing relevant with broadcast service, be used for providing the Metadata about metadata IP package relevant with additional information IP package.For the broadcast service of expectation is provided to the user, IP package acquiring unit 720 must sequentially obtain metadata IP package and additional information IP package.The detailed structure of IP package acquiring unit 720 is described with reference to Fig. 8 after a while.
Additional information IP package in this specification can provide the SG transfer channel based on the SG of OMA BCAST standard.The SG transfer channel is the pseudo channel of indicating the set of the IP bag that SG is provided.In addition, metadata IP package can provide the SG bulletin channel based on the SG bulletin of OMA BCAST standard.SG bulletin channel is the pseudo channel of indicating the set that the IP of SG bulletin bag is provided.
The equipment 700 that is used for the reception broadcast data also can comprise the second map information acquiring unit 730.The second map information acquiring unit 730 obtains the second map information from the signaling information transmission channel.Signaling information transmission channel signaling information, described signaling information are the required information of sending and receiving broadcast data.Map information between the indication of the second map information and metadata IP package corresponding IP address and the data transmission channel.In other words, the second map information comprises and which transmission channel to carry the relevant information of which metadata IP package at.
The first map information acquiring unit 710 carries the data transmission channel of the metadata IP package of user's request based on the second map information search of being obtained by the second map information acquiring unit 730.Subsequently, obtain the first map information from the sub-data channel that is used for command transmitting information.
Fig. 8 illustrates the detailed structure according to the IP package acquiring unit 720 of Fig. 7 of the embodiment of the invention.
IP package acquiring unit 720 can comprise the first acquiring unit 722, processor 724, second acquisition unit 726 and the 3rd acquiring unit 728.
The first acquiring unit 722 is by using the first map information to obtain metadata IP package.
Processor 724 is processed the metadata IP package that obtains, to obtain the address with the corresponding IP of additional information IP package.
Second acquisition unit 726 is by obtaining additional information IP package with the first map information and the IP address that obtains.
Processor 724 is processed the additional information IP package that obtains, further to obtain the address with the corresponding IP of data I P package.
The 3rd acquiring unit 728 is by obtaining the data I P package of user's request with the first map information with the corresponding IP of data I P package address.
When the user asks the combination relevant with broadcast service and additional information, the first map information acquiring unit 710 makes up and the additional information transmission channel by using the second map information to access, and obtains the first map information from the precalculated position of combination and additional information transmission channel.
Combination is for transmitting the combination relevant with broadcast service and the channel of additional information with the additional information transmission channel.Carry the first additional information IP package and the second additional information IP package in combination and additional information transmission channel.The additional information relevant with the first broadcast service that provides through the first data transmission channel is provided the first additional information IP package, and the additional information relevant with the secondary broadcast service that provides through the second data transmission channel is provided the second additional information IP package.
In addition, on combination and additional information transmission channel, may not carry data I P package.In this case, the 3rd acquiring unit 728 must be by using the first map information and accessing other channels and obtain data I P package with the corresponding IP of data I P package address.
Fig. 9 is the flow chart that illustrates according to the method for the transmission broadcast data of the embodiment of the invention.
At operation S910, receive at least one IP package.Divide the IP package based on the service that is provided by the IP bag, at least one IP package is carried on the transmission channel, and is sent out.
At operation S920, produce the first map information.Each corresponding IP address of the first map information indication and at least one IP package and will carry map information between the interior address of each transmission channel of at least one IP package.In other words, the first map information comprise with transmission channel in carry the relevant information in the position of IP package.
At operation S930, send the first map information and at least one IP package through transmission channel.According to the present invention, for the broadcast service according to OMA BCAST standard is provided, send the additional information IP package of the additional information that is used for providing relevant with broadcast service and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
Figure 10 is the flow chart that illustrates according to the method for the reception broadcast data of the embodiment of the invention.
At operation S1010, obtain the first map information from transmission channel.In order to obtain the first map information, can at first obtain the second map information.Map information between the indication of the second map information and metadata IP package corresponding IP address and the data transmission channel.In other words, the second map information comprise with which transmission channel on carry the relevant information of which metadata IP package.Can obtain the second map information through the signalling channel.
The operation S1020, can based on the first map information selectively from transmission channel obtain at least one IP package with the IP package that is acquired.
Can come executable operations S1020 by operation S1021 to S1025.
At operation S1021, obtain metadata IP package by using the first map information from data transmission channel.
At operation S1022, process the metadata IP package that obtains, to obtain the address with the corresponding IP of additional information IP package.
At operation S1023, obtain additional information IP package by the IP address of using the first map information and obtain from data transmission channel.
At operation S1024, process the additional information IP package that obtains, to obtain the address with the corresponding IP of data I P package.Can carry at least one data IP bag at data transmission channel.
At operation S1025, obtain selectively data I P package from least one data I P package.
In this manual, by realizing the present invention with the A-VSB transmission system.Yet, according to embodiments of the invention, can realize the present invention by using the transmission system by the ATSC definition.
The present invention also can be implemented as the computer-readable code on the computer readable recording medium storing program for performing.Described computer readable recording medium storing program for performing is that any store thereafter can be by the data storage device of the data of computer system reads.The example of described computer readable recording medium storing program for performing comprises: read-only memory (ROM), random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage device.The present invention also can be implemented as the computer-readable code on the computer-readable transmission medium.The example of described computer-readable transmission medium is the carrier wave transfer of data of the Internet (for example, by).Computer readable recording medium storing program for performing also can be distributed on the computer system of networking, so that described computer-readable code is stored and is performed with distribution mode.
Although specifically shown with reference to exemplary embodiment of the present invention and described the present invention, but those of ordinary skill in the art will understand, in the situation of the spirit and scope of the present invention that do not break away from the claim restriction, can carry out the various changes on form and the details here.Exemplary embodiment should be regarded as merely on the describing significance, is not the purpose in order to limit.Therefore, scope of the present invention be can't help detailed description of the present invention and is limited, but is defined by the claims, and all differences in this scope will be interpreted as comprising in the present invention.

Claims (32)

1. method that sends broadcast data, described method is by using IP (Internet protocol) bag that broadcast service is provided, and described method comprises:
Receive at least one IP package, divide described IP package based on the service that provides by the IP bag;
Produce the first map information, each corresponding IP address of the indication of described the first map information and described at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package; And
Send the first map information and described at least one IP package through described transmission channel.
2. the method for claim 1, wherein described transmission channel is the channel that is used for the transmission of data in senior residual sideband (A-VSB) system.
3. the method for claim 1, wherein, described transmission channel is the data transmission channel for the transmission of data, with at least one the IP package that is sent out through data transmission channel comprise for the additional information IP package that the additional information relevant with broadcast service is provided, the Metadata about metadata IP package that is used for providing relevant with additional information IP package at least one.
4. method as claimed in claim 3, described method also comprises:
Produce the second map information, the indication of described the second map information and metadata IP package corresponding IP address and will carry map information between the data transmission channel of metadata IP package; And
Signaling information transmission channel through being used for command transmitting information sends the second map information, and wherein, described signaling information is the required information of sending and receiving broadcast data.
5. method as claimed in claim 3, described method also comprises: send the first additional information IP package and the second additional information IP package, wherein, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, the additional information relevant with the secondary broadcast service that provides through the second data transmission channel and combination and additional information transmission channel is provided described the second additional information IP package, and described combination is used for transmission combination and the additional information relevant with broadcast service with the additional information transmission channel.
6. method as claimed in claim 3, wherein, additional information IP package provides the service guide (SG) according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package provides the SG bulletin according to OMA BCAST standard.
7. the method for claim 1, wherein, described transmission channel comprise will carry at least one sub-data channel of at least one IP bag, the address in the data transmission channel is each position mapping table (LMT) call number of position of sub-data channel that indication will be carried described at least one IP package.
8. method that receives broadcast data, described method is by using IP (Internet protocol) bag that broadcast service is provided, and described method comprises:
Obtain the first map information from transmission channel, each corresponding IP address of the indication of described the first map information and at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package, wherein, divide described at least one IP package based on the service that is provided by the IP bag; And
Obtain selectively the IP package of wanting based on the first map information from described at least one IP package.
9. method as claimed in claim 8, wherein, described transmission channel is the channel that is used for the transmission of data in senior residual sideband (A-VSB) system.
10. method as claimed in claim 8, wherein, described transmission channel is the data transmission channel for the transmission of data, comprises at least one the IP package that sends through data transmission channel for the additional information IP package that the additional information relevant with broadcast service is provided and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
11. method as claimed in claim 10, wherein, the step of obtaining selectively the IP package comprises:
By using the first map information to obtain metadata IP package from data transmission channel;
The metadata IP package that processing is obtained is to obtain the address with the corresponding IP of additional information IP package; And
Obtain additional information IP package by the IP address of using the first map information and obtain from data transmission channel.
12. method as claimed in claim 11 wherein, comprises be used at least one data I P package that broadcast service is provided through described at least one IP package of data transmission channel transmission,
The step of obtaining selectively the IP package comprises:
The additional information IP package that processing is obtained is to obtain the address with the corresponding IP of data I P package; And
By using the first map information and from described at least one data I P package, obtaining selectively the data I P package of wanting with the corresponding IP of data I P package address.
13. method as claimed in claim 10, described method also comprises:
Obtain the second map information of the map information between indication and metadata IP package corresponding IP address and the data transmission channel from the signalling channel that is used for command transmitting information, described signaling information is the required information of sending and receiving broadcast data; And
Obtain the data transmission channel that carries metadata IP package based on the second map information,
Wherein, the step of obtaining the first map information comprises: obtain the first map information from the precalculated position of the data transmission channel of access.
14. method as claimed in claim 10, wherein, additional information IP package provides the service guide (SG) according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package provides the SG bulletin according to OMA BCAST standard.
15. method as claimed in claim 8, wherein, described transmission channel is for transmitting the combination relevant with broadcast service and combination and the additional information transmission channel of additional information, to comprise the first additional information IP package and the second additional information IP package through at least one IP package of combination and additional information transmission channel, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, and the additional information relevant with the secondary broadcast service that provides through the second data transmission channel is provided described the second additional information IP package.
16. method as claimed in claim 8, wherein, described transmission channel comprises at least one sub-data channel that carries at least one IP bag, and the address in the data transmission channel is each the LMT call number of position of sub-data channel that indication will be carried described at least one IP package.
17. an equipment that sends broadcast data, described equipment is by using IP (Internet protocol) bag that broadcast service is provided, and described equipment comprises:
Receiving element receives at least one IP package, divides described IP package based on the service that provides by the IP bag;
The first map information generation unit, produce the first map information, each corresponding IP address of the indication of described the first map information and described at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package; And
Transmitting element sends the first map information and described at least one IP package through described transmission channel.
18. equipment as claimed in claim 17, wherein, described transmission channel is the channel that is used for the transmission of data in senior residual sideband (A-VSB) system be used to transmitting.
19. equipment as claimed in claim 17, wherein, described transmission channel is the data transmission channel for the transmission of data, comprises at least one the IP package that sends through data transmission channel for the additional information IP package that the additional information relevant with broadcast service is provided and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
20. equipment as claimed in claim 19, described equipment also comprises the second map information generation unit that produces the second map information, the indication of described the second map information and metadata IP package corresponding IP address and will carry map information between the data transmission channel of metadata IP package, wherein, the transmitting element also signaling information transmission channel through being used for command transmitting information sends the second map information, and described signaling information is the required information of sending and receiving broadcast data.
21. equipment as claimed in claim 19, wherein, transmitting element also sends the first additional information IP package and the second additional information IP package, wherein, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, the additional information relevant with the secondary broadcast service that provides through the second transmission channel and combination and additional information transmission channel is provided described the second additional information IP package, and described combination is used for transmission combination and the additional information relevant with broadcast service with the additional information transmission channel.
22. equipment as claimed in claim 19, wherein, additional information IP package provides the SG according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package provides the SG bulletin according to the OMABCAST standard.
23. equipment as claimed in claim 17, wherein, described transmission channel comprise will carry at least one sub-data channel of at least one IP bag, the address in the data transmission channel is each the LMT call number of position of sub-data channel that indication will be carried described at least one IP package.
24. an equipment that receives broadcast data, described equipment is by using IP (Internet protocol) bag that broadcast service is provided, and described equipment comprises:
The first map information acquiring unit, obtain the first map information from transmission channel, each corresponding IP address of the indication of described the first map information and at least one IP package and will carry map information between the interior address of each transmission channel of described at least one IP package, wherein, divide described at least one IP package based on the service that is provided by the IP bag; And
IP package acquiring unit obtains the IP package of wanting based on the first map information selectively from described at least one IP package.
25. equipment as claimed in claim 24, wherein, described transmission channel is the channel that is used for the transmission of data in senior residual sideband (A-VSB) system.
26. equipment as claimed in claim 24, wherein, described transmission channel is the data transmission channel for the transmission of data, comprises at least one the IP package that sends through data transmission channel for the additional information IP package that the additional information relevant with broadcast service is provided and at least one of the Metadata about metadata IP package that is used for providing relevant with additional information IP package.
27. equipment as claimed in claim 26, wherein, IP package acquiring unit comprises:
The first acquiring unit obtains metadata IP package by using the first map information from data transmission channel;
Processor is processed the metadata IP package that obtains, to obtain the address with the corresponding IP of additional information IP package; And
Second acquisition unit obtains additional information IP package by the IP address of using the first map information and obtain from data transmission channel.
28. equipment as claimed in claim 27, wherein, described at least one IP package through the data transmission channel transmission also comprises be used at least one data I P package that broadcast service is provided, processor is processed the additional information IP package that obtains, to obtain the address with the corresponding IP of data I P package, IP package acquiring unit also comprises the 3rd acquiring unit, and described the 3rd acquiring unit is by using the first map information and obtaining selectively the data I P package of wanting with the corresponding IP of data I P package address from described at least one data packet group.
29. equipment as claimed in claim 26, described equipment also comprises: the second map information acquiring unit, obtain the second map information of the map information between indication and metadata IP package corresponding IP address and the data transmission channel from the signalling channel that is used for command transmitting information, described signaling information is the required information of sending and receiving broadcast data, wherein, the first map information acquiring unit carries the data transmission channel of metadata IP package based on the second map information search, and obtains the first map information from the precalculated position of the data transmission channel of search.
30. equipment as claimed in claim 26, wherein, additional information IP package provides the service guide (SG) according to Open Mobile Alliance-broadcasting (OMA BCAST) standard, and metadata IP package provides the SG bulletin according to OMA BCAST standard.
31. equipment as claimed in claim 24, wherein, described transmission channel is for transmitting the combination relevant with broadcast service and combination and the additional information transmission channel of additional information, to comprise the first additional information IP package and the second additional information IP package through at least one IP package of combination and additional information transmission channel, the additional information relevant with the first broadcast service that provides through the first data transmission channel is provided described the first additional information IP package, and the additional information relevant with the secondary broadcast service that provides through the second data transmission channel is provided described the second additional information IP package.
32. equipment as claimed in claim 24, wherein, described transmission channel comprises at least one sub-data channel that carries at least one IP bag, and the address in the data transmission channel is each the LMT call number of position of sub-data channel that indication will be carried described at least one IP package.
CN2008801107738A 2007-10-09 2008-03-13 Method and apparatus for broadcast data transmission, method and apparatus for broadcast data reception Expired - Fee Related CN101822009B (en)

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