CN101425864A - Data broadcast sending and receiving method - Google Patents
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- CN101425864A CN101425864A CNA2007101637695A CN200710163769A CN101425864A CN 101425864 A CN101425864 A CN 101425864A CN A2007101637695 A CNA2007101637695 A CN A2007101637695A CN 200710163769 A CN200710163769 A CN 200710163769A CN 101425864 A CN101425864 A CN 101425864A
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Abstract
A method used for sending and receiving data broadcast is applied to mobile data broadcast system, and comprises the following steps: the data of mobile data broadcast service is transformed in mark language format by the sending terminal of a mobile data broadcast system to generate mark language files; a service data packet head is generated according to the mark language files; a service data packet is generated after the data of the mark language files are put in the service data packet head; and the service data packet is multiplexed on the traffic channel of the mobile data broadcast system to be sent. The service data packet head comprises the identifier and the length of a data packet of the service data packet. Because universal markup languages such as HTML or XML are adopted to encapsulate and transmit the service data, the receiving terminal can use WEB browsers/WEB servers to analyze and display/run the service data, so that users can realize multiple services in one operation interface, services are used more easily, and users are more satisfied.
Description
Technical field
A kind of data broadcasting method of sending and receiving relates in particular to a kind of mobile data broadcast transmission and method of reseptance.
Background technology
In recent years, digital radio China mobile multi-media broadcasting technology and standard evolution are rapid, Ou Zhou DVB-H (Digital Video Broadcast Handheld for example, the reception of digital video broadcast-handheld formula), MediaFLO (the Media Forward Link Only of the U.S., the single forward link of medium) and the CMMB (China Mobile Multimedia Broadcasting, Mobile Multimedia Broadcasting) etc. of China.
Mobile multimedia broadcast system can provide video and audio service for mobile phone users, simultaneously also can provide the several data broadcasting service, as video segment file based on the file downloading mode, MP3 (MPEG Audio Layer 3, Motion Picture Experts Group's audio layer 3) song is based on the business of real time data stream, as transport information, and various business based on IP (Internet Protocol, Internet protocol).
The CMMB Mobile Multimedia Broadcasting adopts time division way to send MBMS service, and the duration of its broadcast channel frame is 1 second, is made up of 40 25 milliseconds of time slots.Service data is carried on one or more time slot by multiplexing mode.
Fig. 1 is the schematic diagram of transmission after the miscellaneous service data are re-used in the Mobile Multimedia Broadcasting front end system.As shown in Figure 1, miscellaneous service data such as video coding, audio coding, data, electron service instruction, customer management information, control information will be through sending on the channel that just can be carried on time slotization after the operation of Channel Processing such as multiplexing and modulation.
In the CMMB terminal development, for operating-system resources that makes full use of existing portable terminal and the exploitation of accelerating terminal traffic, need to adopt the IP packet directly is multiplexed into method on the time slot, can the most effectively utilize CMMB physical layer channel bandwidth resources like this.
In existing international standard, as having proposed among the DVB-H to adopt based on FLUTE (File Deliveryover Unidirectional Transport, unidirectional file transfer protocol (FTP)) data broadcasting method of agreement, this method is encapsulated in business datum in the IP bag and sends, increased more Overhead, wasted bandwidth resources, and the agreement complexity, there is more application limitation.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, proposes a kind of simple, applied range, and saves the data broadcasting method of sending and receiving of bandwidth resources.
In order to address the above problem, the invention provides a kind of data broadcasting sending method, be applied to it is characterized in that in the mobile data broadcast system that the transmitting terminal of mobile data broadcast system is changed the generation making language document with the data of mobile data broadcasting service with the form of SGML; Generate business datum packet header according to making language document, generate business data packet after the data of making language document are placed on business datum packet header; On the Traffic Channel of mobile data broadcast system, send business data packet is multiplexing;
Described business datum comprises in the packet header: the data packet length of business datum Packet Identifier and this business data packet.
In addition, the index sign that also comprises the described making language document of unique identification in the described business datum packet header; Described transmitting terminal also carries out following operation before sending described business data packet: generate the index information packet according to described making language document; The index information packet that generates is sent on described Traffic Channel;
Comprise in the described index information packet: index information package identification symbol, file attribute information and described index sign; Described file attribute information comprises: the path of described making language document and name information.
In addition, the data of described making language document are the file fragment of described SGML; The transmitting terminal of described mobile data broadcast system generates after the described making language document, also carries out following operation: described making language document is divided into a plurality of file fragments, and distributes unique sheet segment identification for each file fragment in regular turn; Described business datum also comprises in the packet header: the fragment sum of described making language document and described segment identification.
In addition, described SGML is HTML or extend markup language.
In addition, described file attribute information also comprises the FileVersion of described making language document; When comprising a plurality of index sign in the described index information packet, also comprise the index information version identifier in the described index information packet.
In addition, when comprising a plurality of index sign in the described index information packet, also comprise index information length or index quantity in the described index information packet.
The present invention also provides a kind of data broadcasting method of reseptance, is applied to it is characterized in that in the mobile data broadcast system that the receiving terminal of mobile data broadcast system receives business data packet from the Traffic Channel of mobile data broadcast system; According to business datum packet header of business data packet obtain and the storage service packet in comprise the data of mobile data broadcasting service are changed the data of the making language document that is generated with the form of SGML;
Described business datum comprises in the packet header: the data packet length of business datum Packet Identifier and this business data packet.
In addition, the index sign that also comprises the described making language document of unique identification in the described business datum packet header; Described receiving terminal also carries out following operation before receiving described business data packet: reception hint information packet on the described Traffic Channel; After receiving described business data packet, according to the data that described index identifies and described index information packet is stored the making language document that comprises in the described business data packet;
Comprise in the described index information packet: index information package identification symbol, file attribute information and described index sign; Described file attribute information comprises: the path of described making language document and name information.
In addition, the data of described making language document are the file fragment of described SGML; The receiving terminal of described mobile data broadcast system also carries out following operation after getting access to the data of described making language document: according to the fragment sum and the sheet segment identification of the described making language document that comprises in the described business datum packet header, the file fragment of the described SGML that receives is merged into described making language document.
In addition, described SGML is HTML or extend markup language.
In addition, described file attribute information also comprises the FileVersion of described making language document; When comprising a plurality of index sign in the described index information packet, also comprise the index information version identifier in the described index information packet; Described receiving terminal according to described index information version identifier and or FileVersion determine whether to obtain the data of the corresponding making language document of storage.
As from the foregoing, because the present invention adopts general SGMLs such as HTML or XML that business datum is encapsulated and transmits, receiving terminal can use WEB browser/WEB server business datum is resolved and to show/move, make the user in an operation interface, to realize multiple business, increase professional ease for use, improved user's satisfaction.
Description of drawings
Fig. 1 is the schematic diagram of transmission after the miscellaneous service data are re-used in the Mobile Multimedia Broadcasting front end system;
Fig. 2 is an embodiment of the invention mobile data broadcast transmission method flow diagram;
Fig. 3 is the structural representation of embodiment of the invention business data packet;
Fig. 4 is the structural representation of embodiment of the invention index information packet;
Fig. 5 is an embodiment of the invention mobile data broadcast receiving method flow chart;
Fig. 6 is the structural representation of the IP reuse protocol stack of CMMB system.
Embodiment
Basic ideas of the present invention are, transmitting terminal adopts HTML (Hypertext Markup Language with data broadcasting service data, HTML) or XML general SGMLs such as (eXtensible MarkupLanguage, extend markup languages) encapsulate and transmit; Receiving terminal receives and uses behind the data broadcasting service data WEB (World Wide Web, World Wide Web (WWW)) browser business datum is resolved and to show/move.
Describe the present invention below in conjunction with drawings and Examples.
Fig. 2 is an embodiment of the invention mobile data broadcast transmission method flow diagram.As shown in Figure 2, this method comprises following steps:
101: the transmitting terminal of mobile data broadcasting adopts HTML or XML that the data broadcast service data is encapsulated (being about to the form that business datum converts HTML/XML to), generate one or more HTML or XML file, be the unique index sign of each file allocation;
102: for bigger HTML or XML file, can be divided into a plurality of file fragments, to improve the service efficiency of channel resource; And distribute unique sheet segment identification for each file fragment in regular turn;
103: HTML/XML file or file fragment are encapsulated in as shown in Figure 3 the business datum pack arrangement;
As shown in Figure 3, comprise in the business data packet: business datum Packet Identifier, data packet length, index sign, fragment sum, sheet segment identification, business datum, CRC (cyclic redundancy check (CRC)) sign indicating number.Wherein, the business datum Packet Identifier, data packet length, the index sign, sheet segment identification, fragment add up to business datum packet header.
It is business data packet that the business datum Packet Identifier is used to identify this packet; In the present embodiment, the business data packet identifier value is: E34D4DE3.
Data packet length is used to identify the length of this business data packet.
Index sign is used for identifying the HTML/XML file of the business datum correspondence that this business data packet comprises.
The fragment sum is used for identifying the file fragment sum of the pairing HTML/XML file of business datum that this business data packet comprises.
The sheet segment identification is used for identifying the file fragment of the pairing HTML/XML file of business datum that this business data packet comprises.
Fragment sum and sheet segment identification can be commonly referred to as frag info.
The data broadcasting service data that traffic data field encapsulates for the employing HTML/XML that is comprised in this packet.
The CRC sign indicating number is the check code that field generated except that the business datum Packet Identifier in this packet of use, is used for the correctness of checking data.
104: according to the index information packet of HTML/XML file or file fragment corresponding file attribute generation business datum;
Fig. 4 is the data structure of embodiment of the invention index information packet.As shown in Figure 4, comprise in the index information packet: index information package identification symbol (being called for short the index information identifier), index information length, index information version identifier, index quantity, file index, CRC sign indicating number.
It is the index information packet that the index information identifier is used to identify this packet.In the present embodiment, the index information identifier value is: 7A85857A.
Index information length is used for the length of identification index information packet.
The index information version identifier is used for the version of identification index information.
Index quantity is used for the quantity of identification index information packet file index;
File index is the index information for each HTML/XML file or file fragment generation; Comprise in each file index: index sign, file attribute information.
The index that comprises in index sign and the above-mentioned business data packet identifies identical, i.e. " index 0 " among Fig. 4, " index 1 " ... " index K ".That is to say that the index sign by comprising in business data packet and the index information packet can be mapped the HTML/XML file data (traffic data field) that encapsulates in corresponding document index in the index information packet and the business data packet.
File attribute information is used to identify the attribute information that corresponding index identifies pairing HTML/XML file.File attribute information comprises in the present embodiment: FileVersion, file path information and file name information.
File path information comprises: file path name length and file path name.File path information is used to identify the file path title that corresponding index identifies pairing HTML/XML file.
File name information comprises: filename length and filename.File name information is used to identify the file name that corresponding index identifies pairing HTML/XML file.
In another embodiment, file path information and file name information can be merged into file comspec information; Be that file comspec information comprises: file comspec length and file comspec.File comspec information is used to identify the file comspec that comprises routing information that corresponding index identifies pairing HTML/XML file.
FileVersion is used to identify the version that corresponding index identifies pairing HTML/XML file.
In addition, but file attribute information include file length also is used to identify the length that corresponding index identifies pairing HTML/XML file.It is that corresponding file is allocated reception resource and memory space in advance that this field can be used for receiving terminal.
105: the transmitting terminal of mobile data broadcasting is with the index information packet that generates and business data packet is multiplexing sends in the Traffic Channel of mobile data broadcasting.
Index information packet and business data packet can be carried out multiplexing with other IP packet.
The index information packet can independently adopt data carousel (Data Carousel) mode to send to mobile data broadcast reception end (portable terminal) in the traffic sub channel.
Data carousel is a kind of permission server or certain application cycle ground, once or repeatedly sends the service of one group of identical data module.If recipient wishes to visit some specific modules wherein, get final product when only needing by the time broadcasting next time.Adopt data carousel can improve reliability of data transmission.
The index information packet can send to receiving terminal in advance before business data packet.
Fig. 5 is an embodiment of the invention mobile data broadcast receiving method flow chart.As shown in Figure 5, this method comprises following steps:
201: the receiving terminal (portable terminal) of mobile data broadcasting is discerned, is received and storage index information packet according to the index information identifier from the Traffic Channel of mobile data broadcasting;
202: receiving terminal is discerned, is received and the storage service packet according to the business datum Packet Identifier from Traffic Channel;
203: if the HTML/XML file division becomes a plurality of file fragments to transmit, be that the total digital section of fragment that comprises in the business data packet is not 0, then the receiving terminal business data packet that needs to comprise the All Files fragment all receives, and in regular turn each file fragment is merged according to the sheet segment identification;
204: receiving terminal is stored the HTML/XML file that comprises in the business data packet according to file attribute information according to the file attribute information of the HTML/XML file of the index sign business data packet correspondence that acquisition receives from the index information packet.
In addition, after receiving the index information packet, receiving terminal also can be allocated in advance according to the file size information that comprises in the file attribute information and receive resource and memory space, when memory space inadequate, can select not receive (abandoning) corresponding business packet.
In addition, if comprise the CRC sign indicating number in the business data packet, then use the CRC sign indicating number that the data in the business data packet are carried out verification.
In addition, receiving terminal need also can judge whether the HTML/XML file data of reception/storage correspondence according to the FileVersion of above-mentioned index information version identifier and/or each HTML/XML file.
Adopt above-mentioned data broadcasting method of sending and receiving of the present invention business datum can be adopted unified encapsulation format encapsulate transmission.Adopt this data broadcasting method of sending and receiving can support polytype business, for example:
The stream mode data broadcast service, for example: real-time stock certificate data, Real-time Traffic Information business etc.
The file mode data broadcast service, for example: ESG (electron service instruction), the audio frequency and video fragment is downloaded, MP3 (MPEG Audio Layer 1/2/3, Motion Picture Experts Group's audio layer 3) file download etc.;
The IP mode business, some IP-based data broadcast services etc.
Data broadcasting method of sending and receiving of the present invention can be applied in the multiple mobile data broadcast system, for example the CMMB system.Fig. 6 is the structural representation of the IP reuse protocol stack of CMMB system.As shown in Figure 6, the broadcast channel of CMMB system is divided into control channel and Traffic Channel two classes.
Control channel control information transmission table can carry out the transmission of control information and emergent broadcasting information.
Traffic Channel can further be divided into a plurality of time slots (subchannel), is used to transmit various types of business datums.Various types of business datums can multiplexingly transmit on Traffic Channel together.For example, adopt business data packet of the present invention, index information packet on Traffic Channel, to transmit together with the IP packet multiplexing.
After the transport layer of receiving terminal receives business datum, handle accordingly, offer application corresponding layer handling procedure and handle.
Because the present invention is with the form transmission of business datum with unified HTML/XML file, receiving terminal can be deposited according to attribute (pathname, filename etc.) information separately file in this locality, resolved, show and moved by the WEB browser of receiving terminal.Notice, for some complicated service, the WEB browser must just can normally move by the WEB server that is arranged in the receiving terminal (portable terminal), but simply professional for some, can realize as long as open corresponding HTML/XML file by the WEB browser.
For example, can on the WEB page, provide the demonstration of real-time stock market, the broadcast of MP3 song, real-time relay of frequency modulation/tuning broadcasting or the like.
Owing to adopted unified business operation interface (WEB browser interface) for the user provides multiple business, make the user in an operation interface, to realize multiple business, increased professional ease for use, improved user's satisfaction.
When the WEB browser switches usually, can under specific directory, seek user-selected fixed link corresponding page between the different pages.Therefore, attribute information by each HTML/XML file of comprising in the index information packet of the present invention, receiving terminal can be stored data according to the path of appointment, make that the link in the page is pointed to other page (HTML/XML file) in very simple and direct mode.Certainly,, or comprised information such as depositing path and file name in the business datum, also can not send corresponding index information packet if need not to be the business datum specified path.
In addition, owing to can comprise simple handling procedure in the HTML/XML file, for example, JAVA (Java) program.Therefore, provide business to upgrade in the WEB mode by the method for upgrading the HTML/XML file automatically/regularly.
The foregoing description with HTML/XML be example invention has been described, business datum in fact of the present invention also can convert in the making language document of other type/form; Equally, except the WEB browser, can adopt other general SGML explanation/demonstration/working procedure.
Claims (11)
1, a kind of data broadcasting sending method is applied to it is characterized in that in the mobile data broadcast system that the transmitting terminal of mobile data broadcast system is changed the generation making language document with the data of mobile data broadcasting service with the form of SGML; Generate business datum packet header according to making language document, generate business data packet after the data of making language document are placed on business datum packet header; On the Traffic Channel of mobile data broadcast system, send business data packet is multiplexing;
Described business datum comprises in the packet header: the data packet length of business datum Packet Identifier and this business data packet.
2, data broadcasting sending method as claimed in claim 1 is characterized in that, also comprises the index sign of the described making language document of unique identification in the described business datum packet header; Described transmitting terminal also carries out following operation before sending described business data packet: generate the index information packet according to described making language document; The index information packet that generates is sent on described Traffic Channel;
Comprise in the described index information packet: index information package identification symbol, file attribute information and described index sign; Described file attribute information comprises: the path of described making language document and name information.
3, data broadcasting sending method as claimed in claim 1 is characterized in that, the data of described making language document are the file fragment of described SGML; The transmitting terminal of described mobile data broadcast system generates after the described making language document, also carries out following operation: described making language document is divided into a plurality of file fragments, and distributes unique sheet segment identification for each file fragment in regular turn; Described business datum also comprises in the packet header: the fragment sum of described making language document and described segment identification.
4, data broadcasting sending method as claimed in claim 1 is characterized in that, described SGML is HTML or extend markup language.
5, data broadcasting sending method as claimed in claim 2 is characterized in that, described file attribute information also comprises the FileVersion of described making language document; When comprising a plurality of index sign in the described index information packet, also comprise the index information version identifier in the described index information packet.
6, data broadcasting sending method as claimed in claim 2 is characterized in that, when comprising a plurality of index sign in the described index information packet, also comprises index information length or index quantity in the described index information packet.
7, a kind of data broadcasting method of reseptance is applied to it is characterized in that in the mobile data broadcast system that the receiving terminal of mobile data broadcast system receives business data packet from the Traffic Channel of mobile data broadcast system; According to business datum packet header of business data packet obtain and the storage service packet in comprise the data of mobile data broadcasting service are changed the data of the making language document that is generated with the form of SGML;
Described business datum comprises in the packet header: the data packet length of business datum Packet Identifier and this business data packet.
8, data broadcasting method of reseptance as claimed in claim 7 is characterized in that, also comprises the index sign of the described making language document of unique identification in the described business datum packet header; Described receiving terminal also carries out following operation before receiving described business data packet: reception hint information packet on the described Traffic Channel; After receiving described business data packet, according to the data that described index identifies and described index information packet is stored the making language document that comprises in the described business data packet;
Comprise in the described index information packet: index information package identification symbol, file attribute information and described index sign; Described file attribute information comprises: the path of described making language document and name information.
9, data broadcasting method of reseptance as claimed in claim 7 is characterized in that, the data of described making language document are the file fragment of described SGML; The receiving terminal of described mobile data broadcast system also carries out following operation after getting access to the data of described making language document: according to the fragment sum and the sheet segment identification of the described making language document that comprises in the described business datum packet header, the file fragment of the described SGML that receives is merged into described making language document.
10, data broadcasting method of reseptance as claimed in claim 7 is characterized in that, described SGML is HTML or extend markup language.
11, data broadcasting method of reseptance as claimed in claim 8 is characterized in that, described file attribute information also comprises the FileVersion of described making language document; When comprising a plurality of index sign in the described index information packet, also comprise the index information version identifier in the described index information packet; Described receiving terminal determines whether to obtain/store the data of corresponding making language document according to described index information version identifier and/or FileVersion.
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| CNA2007101637695A CN101425864A (en) | 2007-10-30 | 2007-10-30 | Data broadcast sending and receiving method |
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| CNA2007101637695A CN101425864A (en) | 2007-10-30 | 2007-10-30 | Data broadcast sending and receiving method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101841715A (en) * | 2010-05-07 | 2010-09-22 | 无锡中星微电子有限公司 | System and method for decoding video |
| CN102439969A (en) * | 2009-05-21 | 2012-05-02 | 三星电子株式会社 | Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing streams thereof |
| CN102625251A (en) * | 2012-03-12 | 2012-08-01 | 成都林海电子有限责任公司 | Digital broadcasting treating method, mobile terminal and system |
| CN103002336A (en) * | 2012-11-15 | 2013-03-27 | 深圳市九洲电器有限公司 | Data browsing method and device and set-top box |
| CN104040977A (en) * | 2012-12-28 | 2014-09-10 | 华为技术有限公司 | Message caching method and device |
| US8891465B2 (en) | 2009-05-21 | 2014-11-18 | Samsung Electronics Co., Ltd. | Digital broadcasting transmitter, digital broadcasting receiver, and methods for configuring and processing a stream for same |
| CN110099036A (en) * | 2018-01-31 | 2019-08-06 | 国广融合（北京）传媒科技发展有限公司 | A kind of data encapsulation method based on fusion Transmission system |
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- 2007-10-30 CN CNA2007101637695A patent/CN101425864A/en active Pending
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| US8891465B2 (en) | 2009-05-21 | 2014-11-18 | Samsung Electronics Co., Ltd. | Digital broadcasting transmitter, digital broadcasting receiver, and methods for configuring and processing a stream for same |
| CN102439969A (en) * | 2009-05-21 | 2012-05-02 | 三星电子株式会社 | Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing streams thereof |
| CN102439969B (en) * | 2009-05-21 | 2015-08-12 | 三星电子株式会社 | The method of digital broadcasting transmitter, digital broadcasting transmitter and configuration and process stream |
| US8798138B2 (en) | 2009-05-21 | 2014-08-05 | Samsung Electronics Co., Ltd. | Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing streams thereof |
| US8811304B2 (en) | 2009-05-21 | 2014-08-19 | Samsung Electronics Co., Ltd. | Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing streams thereof |
| US8787220B2 (en) | 2009-05-21 | 2014-07-22 | Samsung Electronics Co., Ltd. | Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing digital transport streams thereof |
| CN101841715B (en) * | 2010-05-07 | 2013-04-03 | 无锡中星微电子有限公司 | System and method for decoding video |
| CN101841715A (en) * | 2010-05-07 | 2010-09-22 | 无锡中星微电子有限公司 | System and method for decoding video |
| CN102625251B (en) * | 2012-03-12 | 2015-07-08 | 成都林海电子有限责任公司 | Digital broadcasting treating method, mobile terminal and system |
| CN102625251A (en) * | 2012-03-12 | 2012-08-01 | 成都林海电子有限责任公司 | Digital broadcasting treating method, mobile terminal and system |
| CN103002336A (en) * | 2012-11-15 | 2013-03-27 | 深圳市九洲电器有限公司 | Data browsing method and device and set-top box |
| CN104040977A (en) * | 2012-12-28 | 2014-09-10 | 华为技术有限公司 | Message caching method and device |
| CN104040977B (en) * | 2012-12-28 | 2016-10-05 | 华为技术有限公司 | The method and apparatus of caching message |
| CN110099036A (en) * | 2018-01-31 | 2019-08-06 | 国广融合（北京）传媒科技发展有限公司 | A kind of data encapsulation method based on fusion Transmission system |
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