CN101330348B - Data encapsulation apparatus and method - Google Patents
Data encapsulation apparatus and method Download PDFInfo
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- CN101330348B CN101330348B CN2007101115765A CN200710111576A CN101330348B CN 101330348 B CN101330348 B CN 101330348B CN 2007101115765 A CN2007101115765 A CN 2007101115765A CN 200710111576 A CN200710111576 A CN 200710111576A CN 101330348 B CN101330348 B CN 101330348B
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- multimedia broadcast
- multicast service
- encapsulation
- service data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1886—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
Abstract
The invention provides a data encapsulation device and a method thereof used for multimedia broadcast/multicast service data. The data encapsulation device comprises a classification and restriction module used for classifying multimedia broadcast/multicast service data into at least one data type according to service application and restricting the data structure of the multimedia broadcast/multicast service data according to data types; an identification and description module used for identifying different multimedia broadcast/multicast service data according to data volume identifications and describing the multimedia broadcast/multicast service data according to the restricted data structure; and a data encapsulation module used for encapsulating the described multimedia broadcast/multicast service data in different segments and mapping the encapsulated multimedia broadcast/multicast service data to a data unit of a transmission layer for transmission. The data encapsulation device can meet the requirements for transmitting various service data and supporting various complex service applications, and can support one information channel for transmitting various media data of service application.
Description
Technical field
The present invention relates to the communications field, relate in particular to data encapsulation apparatus and method.
Background technology
In the mobile communications network, the data service application and development is maked rapid progress, the CMMB of having derived, multicast.Promptly in order effectively to utilize bandwidth, to suit form of service, many codes and standards have adopted broadcasting, method of multicasting, come service data transmission.For example, MBMS, BCMCS etc.
These traffic data type examples have comprised various media datas; Professional various audio frequency and video short-movies (for example weather forecast, comedy humour etc.) and the professional image, text and data (for example news, weather, astrology length of run, advertisement etc.) of Data casting of Clipcasting for example.
Yet, comprise at present limited channel resource can only being provided in the scheme of MBMS, BCMCS.
Normally used Streaming Media broadcasting/packet service, what a path channels transmitted is the content of a program frequency band.
Comparatively speaking, the form of the data service of user's needs is varied.Thus, need to use certain channel to transmit the business datum of multiple program.
Summary of the invention
To above one or more problems, the invention provides a kind of method that encapsulates these business datums, can satisfy transmission multiple business data, support the requirement of complicated and diversified service application.
The data encapsulation apparatus that is used for multimedia broadcast and multicast service data according to the present invention comprises: classification and qualification module; Be used for multimedia broadcast and multicast service data being divided at least a data type, and limit the data structure of multimedia broadcast and multicast service data according to data type according to service application; Sign and describing module are used to use the data volume sign that different multimedia broadcast and multicast service data instances is identified, and describe multimedia broadcast and multicast service data according to the data structure that is limited; And the data encapsulation module, be used for the multimedia broadcast and multicast service data after describing is carried out the merogenesis encapsulation, and the data cell that the multimedia broadcast and multicast service data after will encapsulating is mapped to transport layer is to transmit.
The data encapsulation method that is used for multimedia broadcast and multicast service data according to the present invention may further comprise the steps: step S202; According to service application multimedia broadcast and multicast service data is divided at least a data type, and limits the data structure of multimedia broadcast and multicast service data according to data type; Step S204 uses the data volume sign that different multimedia broadcast and multicast service data instances is identified, and describes multimedia broadcast and multicast service data according to the data structure that is limited; And step S206, the multimedia broadcast and multicast service data after describing is carried out the merogenesis encapsulation, and the data cell that the multimedia broadcast and multicast service data after will encapsulating is mapped to transport layer is to transmit.
Wherein, the multimedia broadcast and multicast service data of different types of data uses identical or different data volume to identify.The data encapsulation module is encapsulated into the multimedia broadcast and multicast service data merogenesis of different types of data in the different pieces of information unit of same Traffic Channel.The encapsulation of multimedia broadcast and multicast service data comprises: data head, payload user data and CRC check sign indicating number.Data head comprises: data type sign, payload user data length, data volume sign, joint sequence number, total joint number.
The present invention can satisfy transmission multiple business data, supports the requirement of complicated and diversified service application, supports the media data that a Channel Transmission multiple business is used.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram that is used for the data encapsulation apparatus of multimedia broadcast and multicast service data according to of the present invention;
Fig. 2 is the flow chart that is used for the data encapsulation method of multimedia broadcast and multicast service data according to of the present invention; And
Fig. 3 is the sketch map according to data encapsulation of the present invention.
Embodiment
With reference to accompanying drawing, specify embodiment of the present invention below.
Fig. 1 is the block diagram that is used for the data encapsulation apparatus of multimedia broadcast and multicast service data according to of the present invention.As shown in Figure 1; The data encapsulation apparatus that is used for multimedia broadcast and multicast service data of the present invention comprises: classification and qualification module 102; Be used for multimedia broadcast and multicast service data being divided at least a data type, and limit the data structure of multimedia broadcast and multicast service data according to data type according to service application; Sign and describing module 104 are used to use the data volume sign that different multimedia broadcast and multicast service data instances is identified, and describe multimedia broadcast and multicast service data according to the data structure that is limited; And data encapsulation module 106, be used for the multimedia broadcast and multicast service data after describing is carried out the merogenesis encapsulation, and the data cell that the multimedia broadcast and multicast service data after will encapsulating is mapped to transport layer is to transmit.
Wherein, the multimedia broadcast and multicast service data of different types of data uses identical or different data volume to identify.The data encapsulation module is encapsulated into the multimedia broadcast and multicast service data merogenesis of different types of data in the different pieces of information unit of same Traffic Channel.The encapsulation of multimedia broadcast and multicast service data comprises: data head, payload user data and CRC check sign indicating number.Data head comprises: data type sign, payload user data length, data volume sign, joint sequence number, total joint number.
Fig. 2 is the flow chart that is used for the data encapsulation method of multimedia broadcast and multicast service data according to of the present invention.As shown in Figure 2, the data encapsulation method of multimedia broadcast-multicast service among the mobile network may further comprise the steps:
S202 according to the difference of service application, divides the plurality of data type, is the data structure definition of different types of data regulation media data information.
S204 uses the data volume sign to distinguish different media data instances, describes media data according to data structure.Wherein.The media data of different types of data can use identical data volume sign, for example, is used for the media data of related like-identified.
S206 after the encapsulation of media data merogenesis, is mapped to the data cell of transport layer, transmits.Wherein, mobile network's transmission system provides the transmission unit of business datum, i.e. data cell.Further, for the merogenesis of media data, its corresponding joint sequence number and total joint number are as one of encapsulation parameter.Equally, the payload user data length of notebook data joint is also as one of encapsulation parameter.Encapsulation parameter all is comprised in the data cell of transport layer.
As shown in Figure 3, comprise the content information and the encapsulation parameter of data services such as Data casting and Clip casting in the wrapper of transport layer data unit.Data cell can be the UDP message bag of CMMB multicast.
Comprise in the data cell encapsulation of the present invention: data head, payload user data and CRC check sign indicating number.Wherein, the explanation of data head each several part is as follows:
The data type sign: 5 bit fields, the type of identification data payload data carried by data, table 1 is seen in definition, with the unique data volume of confirming an overall situation of data volume sign.
Table 1 data type sign
Payload user data length: 11 bit fields, the byte number length of expression notebook data payload.
Data volume sign: 8 bit fields, the data volume under the expression data section, for example certain data files.
The joint sequence number: 16 bit fields, span 0～65534, the joint sequence number of current transmission data is carried in expression.
Total joint number: 16 bit fields, span 1～65535, total joint number of current transmission data is carried in expression.
Payload user data: business datum is divided into the different pieces of information body, and according to the requirement of transmission unit piece is divided into data section according to data type sign and data volume sign, and this field is the payload that data section is carried.Byte is a unit.
Here, data volume is the general designation of instance of the business datum of network side broadcast/group broadcast certain program of giving the terminal, and its content can comprise the part or all of data of certain or some data types.
CRC_32:32 bit field CRC.Check code for the notebook data payload.
Corresponding every kind of different data type is stipulated the data structure of its media description.For example: news: Record ID, news date, news type, headline, news content details, picture identification.
Astrology length of run: Record ID, constellation, title, content details, picture identification, comprehensively transport index, comprehensive fortune and describe details, love fortune index, love fortune and describe details, money fortune index, money fortune and describe details.Astrology length of run index value 1～5.
Weather: Record ID, place name, date, maximum temperature, minimum temperature, variations in temperature, picture identification (picture is built-in), forecast details.
" details " of above miscellaneous service data also can the WEB page or similar type, promptly itself can embed text, picture, URL link etc.Above data structure is used the XML statement.
In addition, corresponding to picture, the URL of multimedia service data, through the data volume sign of its data encapsulation and the business datum of the definite ownership of data type sign.
Further, can the multimedia service data of different types of data be encapsulated in the different pieces of information unit of same Traffic Channel, just realize a media data that the Channel Transmission multiple business is used.
In a word, the present invention provides a kind of method of encapsulation of CMMB multi-cast business data, can support the media data that Channel Transmission multiple business such as MBMS, BCMCS is used.But concrete implementation method is not limited to this instance.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. data encapsulation apparatus that is used for multimedia broadcast and multicast service data is characterized in that comprising:
Classification and qualification module are used for according to service application multimedia broadcast and multicast service data being divided at least a data type, and limit the data structure of said multimedia broadcast and multicast service data according to said data type;
Sign and describing module are used to use the data volume sign that different multimedia broadcast and multicast service data instances is identified, and describe said multimedia broadcast and multicast service data according to the data structure that is limited; And
The data encapsulation module be used for the multimedia broadcast and multicast service data after describing is carried out the merogenesis encapsulation, and the data cell that the multimedia broadcast and multicast service data after will encapsulating is mapped to transport layer is to transmit.
2. data encapsulation apparatus according to claim 1 is characterized in that, the multimedia broadcast and multicast service data of different types of data uses identical or different data volume to identify.
3. data encapsulation apparatus according to claim 2 is characterized in that, said data encapsulation module is encapsulated into the multimedia broadcast and multicast service data merogenesis of different types of data in the different pieces of information unit of same Traffic Channel.
4. data encapsulation apparatus according to claim 3 is characterized in that, the encapsulation of said multimedia broadcast and multicast service data comprises: data head, payload user data and CRC check sign indicating number.
5. data encapsulation apparatus according to claim 4 is characterized in that, said data head comprises: data type sign, payload user data length, said data volume sign, joint sequence number, total joint number.
6. a data encapsulation method that is used for multimedia broadcast and multicast service data is characterized in that, may further comprise the steps:
Step S202 is divided at least a data type according to service application with multimedia broadcast and multicast service data, and limits the data structure of said multimedia broadcast and multicast service data according to said data type;
Step S204 uses the data volume sign that different multimedia broadcast and multicast service data instances is identified, and describes said multimedia broadcast and multicast service data according to the data structure that is limited; And
Step S206 the multimedia broadcast and multicast service data after describing is carried out the merogenesis encapsulation, and the data cell that the multimedia broadcast and multicast service data after will encapsulating is mapped to transport layer is to transmit.
7. data encapsulation method according to claim 6 is characterized in that, the multimedia broadcast and multicast service data of different types of data uses identical or different data volume to identify.
8. data encapsulation method according to claim 7 is characterized in that, the multimedia broadcast and multicast service data merogenesis of different types of data is encapsulated in the different pieces of information unit of same Traffic Channel.
9. data encapsulation method according to claim 8 is characterized in that, the encapsulation of said multimedia broadcast and multicast service data comprises: data head, payload user data and CRC check sign indicating number.
10. data encapsulation method according to claim 9 is characterized in that, said data head comprises: data type sign, payload user data length, said data volume sign, joint sequence number, total joint number.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101115765A CN101330348B (en) | 2007-06-19 | 2007-06-19 | Data encapsulation apparatus and method |
| PCT/CN2007/003562 WO2008154779A1 (en) | 2007-06-19 | 2007-12-12 | Apparatus and method for encapsulating data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101115765A CN101330348B (en) | 2007-06-19 | 2007-06-19 | Data encapsulation apparatus and method |
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| Publication Number | Publication Date |
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| CN101330348A CN101330348A (en) | 2008-12-24 |
| CN101330348B true CN101330348B (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101115765A Expired - Fee Related CN101330348B (en) | 2007-06-19 | 2007-06-19 | Data encapsulation apparatus and method |
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| CN (1) | CN101330348B (en) |
| WO (1) | WO2008154779A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673380B (en) * | 2009-10-16 | 2012-03-28 | 广东宇天科技有限公司 | Method and device for realizing mobile media service |
| CN102480335B (en) * | 2010-11-30 | 2015-08-05 | 金蝶软件（中国）有限公司 | A kind of sending method of business datum and system |
| CN102595199A (en) * | 2011-01-11 | 2012-07-18 | 中兴通讯股份有限公司 | Streaming media packet packaging and transmitting method, and streaming media processing device |
| CN102724555B (en) * | 2012-07-09 | 2016-05-11 | 杭州海康威视数字技术股份有限公司 | Multichannel code stream in video monitoring system is with port processing method and system thereof |
| CN103368971A (en) * | 2013-07-25 | 2013-10-23 | 厦门亿联网络技术股份有限公司 | Communication method for unified data among multiple modules |
| CN105847320A (en) * | 2016-03-02 | 2016-08-10 | 乐视致新电子科技（天津）有限公司 | Resource obtaining method and device |
| CN111885038B (en) * | 2020-07-16 | 2022-06-10 | 深圳思凯微电子有限公司 | Data packaging method, device and system and computer readable storage medium |
| CN114422604A (en) * | 2021-12-27 | 2022-04-29 | 中国电信股份有限公司 | Data sending and receiving method and device |
| CN115278323A (en) * | 2022-06-30 | 2022-11-01 | 海信视像科技股份有限公司 | Display device, intelligent device and data processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1594254A1 (en) * | 2004-05-07 | 2005-11-09 | Samsung Electronics Co., Ltd. | Apparatus and method for notifying transmisssion mode in MBMS service |
| CN1756216A (en) * | 2004-09-30 | 2006-04-05 | 华为技术有限公司 | Service recognition and route method in multimedia broadcast multicast service system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2399713A (en) * | 2003-03-17 | 2004-09-22 | Orange Personal Comm Serv Ltd | Telecommunications apparatus and method based on quality of service |
| CN1972408A (en) * | 2006-11-30 | 2007-05-30 | 中兴通讯股份有限公司 | A data transmission method for mobile multimedia broadcasting system |
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2007
- 2007-06-19 CN CN2007101115765A patent/CN101330348B/en not_active Expired - Fee Related
- 2007-12-12 WO PCT/CN2007/003562 patent/WO2008154779A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1594254A1 (en) * | 2004-05-07 | 2005-11-09 | Samsung Electronics Co., Ltd. | Apparatus and method for notifying transmisssion mode in MBMS service |
| CN1756216A (en) * | 2004-09-30 | 2006-04-05 | 华为技术有限公司 | Service recognition and route method in multimedia broadcast multicast service system |
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| Publication number | Publication date |
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| CN101330348A (en) | 2008-12-24 |
| WO2008154779A1 (en) | 2008-12-24 |
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