CN101047847A - Transmission method for data information of electronic service directory - Google Patents

Transmission method for data information of electronic service directory Download PDF

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Publication number
CN101047847A
CN101047847A CNA2007100734433A CN200710073443A CN101047847A CN 101047847 A CN101047847 A CN 101047847A CN A2007100734433 A CNA2007100734433 A CN A2007100734433A CN 200710073443 A CN200710073443 A CN 200710073443A CN 101047847 A CN101047847 A CN 101047847A
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China
Prior art keywords
data
content
service
business
professional
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CNA2007100734433A
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Chinese (zh)
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CN100488252C (en
Inventor
李木金
姚清华
柯尊友
文海龙
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Global Innovation Polymerization LLC
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ZTE Corp
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Priority to CNB2007100734433A priority Critical patent/CN100488252C/en
Priority to PCT/CN2007/001675 priority patent/WO2008106837A1/en
Publication of CN101047847A publication Critical patent/CN101047847A/en
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Publication of CN100488252C publication Critical patent/CN100488252C/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors

Abstract

This invention discloses a transmission method for data information of electronic service directory including: dividing data information into one or several kinds of service information, arranging information, content information and operation parameter information by a data kind identification field, segmenting the sorted data information in terms of blocks by a data block identification field, segmenting the data block into several sections by a section sequence number field, and the data sections are corresponding to the data units of complex sub-frames, which are transmitted in the service logic channels of an electronic service directory.

Description

A kind of transmission method of data message of electron service instruction
Technical field
The present invention relates to the data message of the electron service instruction in the mobile multimedia broadcast system, relate in particular to formation and transmission and its implementation of the data message of electron service instruction in the mobile multimedia broadcast system.
Background technology
Along with the development of digital broadcasting technology, become possibility so that adopt the digital satellite broadcasting technology to provide such as mobile phone TV services. Mobile multimedia broadcast system can transmit more television channel in limited bandwidth, increased the quantity of the television channel that transmits, thereby also so that the user can enjoy many various television channel programs easily.
Yet, because the increase of television channel quantity, so that the user is difficult to find easily the TV programme of liking or the program that will play from numerous television channel programs. So, need the guide that represents navigation information a kind of and spectators' user direct interaction, and electron service instruction produces for this demand.
Data message is the main body of ESG, has described the business information relevant with mobile multi-media broadcasting service, arrangement information, content information and business parameters data, transmits in ESG (electron service instruction) service logical channels. ESG operates on user's the terminal device, for the relevant information that the terminal use provides mobile multi-media broadcasting service, such as Business Name, reproduction time, content outline etc., is convenient to the user to quick-searching and the access of business.
It can be organized and television channel and the program that provides be provided according to channel, helps spectators user to select easily his/her interested TV programme from numerous TV programme. The user determines whether to watch this program by being presented at the content description information of the program on the ESG. In general, the metadata that provides is abundanter, and the navigation feature of ESG is just stronger.
This huge ESG data message needs mobile media broadcasting network to be sent on user's the terminal. Yet, on the one hand, because the limit bandwidth of mobile media broadcasting network; On the other hand, consider computational resource and the memory storage limited space of portable terminal, and the problems such as life-span of the performance of portable terminal and battery electrification time, so many ESG data message may not be processed and store to user's portable terminal. Therefore, design is suitable for the formation of the data message of ESG under the mobile media broadcasting network, guarantees that user's terminal can receive the data message of most important ESG at least, is vital.
There is following problem in the ESG data message in the prior art, and the first, ESG data message is too huge, and these ESG data messages of broadcast transmission need to consume too much wireless bandwidth, and terminal receives these data and also will consume many resources; The second, ESG data message design is unreasonable, if consider in the process of transmission and the problems such as packet loss, Transmission and terminal device limited storage space occur, it is unavailable the ESG data message that terminal device receives then can to occur. For example, terminal has received the content information class of ESG data message, but has lost the information of the reproduction time of this content information class, so that the user can't know the schedule information etc. of the content play of program.
For this reason, design the ESG data message that fully to describe media content, and in transmission course, can not take too much wireless bandwidth, also will consider the problems such as length of the electrification time of the performance of user terminal and its battery, be one and have challenging task. It has become the important topic that mobile media broadcasting network ESG data message design aspect especially must solve.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission method of data message of electronic service guide table. The method can fully be described media content, and does not take again too much wireless bandwidth in transmission course, also considers the problems such as length of the electrification time of the performance of portable terminal and its battery.
In order to address the above problem, the present invention proposes a kind of transmission method of data message of electron service instruction, described method comprises: data message is divided in business information class, arrangement information class, content information class and the business parameters data class one or more, distinguishes by the data type identification field; Sorted data message is cut apart by piece, distinguished by the data block identification field; Data block is divided into some joints, distinguishes by the joint sequence number field, data section is corresponding with the data cell of multiplexed sub frame; Multiplexed sub frame is transmitted in the electron service instruction service logical channels.
Further, the transmission method of the data message of above-mentioned electron service instruction, it is characterized in that: the type of data message comprises the business information class, is the data message that represents the electron service instruction that navigation information must want, and it comprises business element and professional extensible element.
Further, the transmission method of the data message of above-mentioned electron service instruction, it is characterized in that: described business information class comprises business element, professional base attribute has been described, comprise that type of service, professional classification, service parameter sign, Business Name, Business Name describe that character string, Business Name are described the languages attribute, freely indicated, key obtains descriptor, service identification number one or more.
Further, the transmission method of the data message of above-mentioned electronic service guide table, it is characterized in that: described professional extensible element, professional extended attribute has been described, comprise with the relevant professional extended description of languages, business description, service provider, professional languages describe, one or more in the dtd——data type definition of linguistic property with the relevant professional extended description of languages, multimedia element, multimedia element, extensible element, service identification number.
Further, the transmission method of the data message of above-mentioned electronic service guide table is characterized in that: described arrangement information class, content information class and business parameters data class provide respectively zero-time, the programm name of describing program, the attribute of program, and the required parameter of access service.
Further, the transmission method of the data message of above-mentioned electronic service guide table, it is characterized in that: described arrangement information class comprises the layout element, the layout corresponding relation of professional and content has been described, program is play zero-time etc., comprises that service identification number, content identification, subject element, theme, the linguistic property of subject element, time started, time started element data type definition, free indication, live indication, playback indication, key obtain descriptor, layout identifies.
Further, the transmission method of the data message of above-mentioned electronic service guide table, it is characterized in that: described content information class comprises content element, describe the attribute of program, comprised the dtd——data type definition of classifying content, content type, duration, multimedia element, multimedia element, with the relevant content description element of languages, keyword, summary, title, the indication of content sound accompanying language, subtitle language indication, with linguistic property, service parameter sign, extend information, the content identification of the relevant content description element of languages.
Further, the transmission method of the data message of above-mentioned electronic service guide table is characterized in that: described business parameters data class comprises affair param elements, service parameter sign.
Compared with prior art, the present invention proposes the transmission method of the electronic business guide table metadata in a kind of mobile multimedia broadcast system, overcome the shortcomings such as the limited ability of narrow bandwidth, portable terminal of CMMB and battery life be short, promoted availability and the core competitiveness of system.
Description of drawings
Fig. 1 is the formation of the data message of electron service instruction among the embodiment.
The specific embodiment
For ease of profound understanding technology contents of the present invention, the present invention is described in detail below in conjunction with drawings and the specific embodiments.
In mobile multimedia broadcast system, the function of ESG is the relevant information that mobile multi-media broadcasting service is provided for the terminal use, such as Business Name, reproduction time, content outline etc., is convenient to the user to quick-searching and the access of business.
In mobile multimedia broadcast system, ESG is made of basic descriptor, data message and program prompt information.
Data message is the main body of ESG, has described the business information relevant with mobile multi-media broadcasting service, arrangement information, content information and business parameters data, transmits in the ESG service logical channels; Basic descriptor is the control information of ESG, described data message in the distribution condition of ESG service logical channels, update mode etc., transmits in the control logic channel; Program prompt information is the supplementary of ESG, has described the summary info of professional current slot and next time period broadcast program, with multimedia broadcasting look, audio unit transmits in service logical channels.
Data message is packaged into the data cell of multiplexed sub frame, transmits in the ESG service logical channels. For the transmission of adaptation service logic channel, data message is divided according to type, is divided into business information class, arrangement information class, content information class and business parameters data class etc., distinguishes by the data type identification field; Sorted data message is cut apart by piece, distinguished by the data block identification field; Data block is divided into some joints, distinguishes by the joint sequence number field, and data section is corresponding one by one with the data cell of multiplexed sub frame.
The present invention is described in further detail with embodiment with reference to the accompanying drawings for the below.
Fig. 1 is the formation of the data message of electron service instruction among the embodiment and the relation between each unit, and the data message of electron service instruction mainly comprises business information, arrangement information, content information and business parameters data. Wherein:
Business information is made of some business elements, and every element has been described professional attribute, such as service identification, title, languages etc.
Arrangement information is comprised of some layouts, and each layout is made of some layout elements, and every element has been described the information such as the zero-time, programm name of program.
Content information is made of some content elements, and every element has been described the attribute of program, such as duration, program introduction, keyword etc.
Business parameters data is made of some service parameter elements, and every element has been described the required parameter of access service, as look, audio code rate, frame frequency etc.
Table 1 is the business element of business information class of the data message of electron service instruction. In general, business element is important, is the data message that represents the ESG that navigation information must want. Business element has been described professional base attribute. Wherein, type of service (ServiceClass), for example, TV, audio broadcasting, short format video clip, data service, file download, software administration, ESG; Professional classification (ServiceGenre) is professional classification; Service parameter sign (ServiceParaID), expression is obtained business parameters data according to this sign from professional param elements; If this is 0, illustrate that then this business does not have corresponding service parameter; Business Name (ServiceName) has this element at least, distinguishes languages according to " lang " attribute; Business Name is described character string (ServiceNameStr), has described professional title; Business Name is described languages attribute (lang), adopts 3 alphabetic language codes of GB/T 4880.2/T-2000 standard; Free indication (forFree), " true " expression is free, and " false " represents charge. Key obtains descriptor (CADescriptor), and optional, syntactic definition is expanded in the future; Service identification number (ServiceID), the attribute of business element has identified a business uniquely in CMMB transmission multiplexed frame.
Table 1
Field Semantic
ServiceClass Type of service, for example, TV, audio broadcasting, short format video clip, data service, file download, software administration, ESG.
ServiceGenre Professional classification.
ServiceParaID The service parameter sign, 16 signless integers, expression is obtained business parameters data according to this sign from professional param elements; If this is 0, illustrate that then this business does not have corresponding service parameter.
ServiceName Business Name has this element at least. Distinguish languages according to " lang " attribute.
ServiceNameStr Business Name is described character string.
lang Business Name is described the languages attribute.
forFree Free indication, Boolean type, " true " expression is free, and " false " represents charge.
CADescriptor Key obtains descriptor, and is optional. Syntactic definition is expanded in the future.
ServiceID Service identification number, the attribute of business element has identified a business uniquely in CMMB transmission multiplexed frame.
... ...
Table 2 is professional extensible elements of business information class of the data message of electron service instruction among the embodiment. Professional extensible element has been described professional extended attribute. Wherein, with the relevant professional extended description (ServiceAuxLanguageSpecial) of languages, the languages relevant with the business expansion have been described; Business description (ServiceDescription) provides professional explanation; Service provider (ServiceProyider), service provider's title; Professional languages are described (ServiceLanguage), the language message of the main employing of expression business program content; Business Name is described languages attribute (lang), the linguistic property of ServiceAuxLanguageSpecial element; Multimedia element (Media), indication adopt multi-medium data to describe professional information; The dtd——data type definition of multimedia element (MediaType) sees table 7 for details, and it comprises purposes (Usage), content type element (ContentType), media data (MediaData), media data (MediaURI); Extensible element (ExtentInfo), professional growth data is described in indication; Service identification number (ServiceID), the attribute of business element has identified a business uniquely in CMMB transmission multiplexed frame.
Table 2
Field Semantic
ServiceAuxType Define the data type of professional extensible element.
ServiceAuxLanguageSpecial With the relevant professional extended description of languages.
ServiceDescription Business description.
ServiceProvider The service provider.
ServiceLanguage Professional languages are described, and the language message of the main employing of expression business program content is separated with '/' between the different language, such as " Chinese/Tibetan language ".
lang The linguistic property of ServiceAuxLanguageSpecial element.
Media Multimedia element, indication adopt multi-medium data to describe professional information.
MediaType The dtd——data type definition of multimedia element sees Table 7.
ExtentInfo Extensible element, professional growth data is described in indication. Dtd——data type definition is expanded in the future.
ServiceID Service identification number, the attribute of business element has identified a business uniquely in CMMB transmission multiplexed frame.
... ...
Table 3 is layout elements of arrangement information class of the data message of electron service instruction among the embodiment. The layout element has been described the layout corresponding relation of professional and content, and program is play zero-time etc. Wherein, service identification number (ServiceID), the attribute of business element has identified a business uniquely in CMMB transmission multiplexed frame; Content identification (ContentID), the overall situation is unique; Theme (Title) element; The title of theme (TitleStr) expression program content playing; Business Name is described the linguistic property of languages attribute (lang) subject element; Time started (StartTime), time started element data type definition (UTCDateTimeType) sees table 6 for details, for example, date element, form " xxxx-xx-xx ", the expression year-moon-Ri, and time element, form " xx:xx:xx ", during expression: minute: second; Free indication (forFree), " true " expression is free, and " false " represents charge; Live indication (Live), " true " expression is live, and " false " represents video recording; Playback indication (Repeat), " true " represents to replay, and " false " represents first broadcast; Key obtains descriptor (CADescriptor), in the future expanded definition; Layout sign (ScheduleID), the layout attribute of an element, the overall situation is unique.
Table 3
Field Semantic
ServiceID Service identification number, the attribute of business element, 16 signless integers have identified a business uniquely in CMMB transmission multiplexed frame.
ContentID Content identification, the overall situation is unique.
Title Subject element.
TitleStr Theme, the title of expression program content playing.
lang The linguistic property of Title element.
StartTime Time started.
UTCDateTimeType Time started element data type definition sees Table 6.
forFree Free indication, Boolean type, " true " expression is free, and " false " represents charge.
Live Live indication, Boolean type, " true " expression is live, and " false " represents video recording.
Repeat The playback indication, Boolean type, " true " represents to replay, and " false " represents first broadcast.
CADescriptor Key obtains descriptor, in the future expanded definition.
ScheduleID The layout sign, the layout attribute of an element, the overall situation is unique.
... ...
Table 4 is content elements of content information class of the data message of electron service instruction among the embodiment, and content element has been described the attribute of program. Wherein, classifying content (ContentClass), the type of presentation medium content, the value of single content type are " text ", " image ", " audio ", " video " or " application ", and compound content type is " multipart "; Content type (ContentGenre), the classification of content; Duration (Duration), the reproduction time length of denoting contents or program, unit is second; Multimedia element (Media), indication adopt multi-medium data to describe professional information; The dtd——data type definition of multimedia element (MediaType) sees table 7 for details, and it comprises purposes (Usage), content type element (ContentType), media data (MediaData), media data (MediaURI); With the relevant content description element (ContentLanguageSpecial) of languages; Keyword (Keyword), between a plurality of keywords with "; " separate; Summary (DigestInfo), the simple description of denoting contents; Title (Title, the title of content; Content sound accompanying language indication (AudioLang) is separated with '/' between the different sound accompaniments, such as " Chinese/Tibetan language "; Subtitle language indication (SubtitleLang), use between the different language '/, separate, such as " Chinese/Tibetan language "; Business Name is described languages attribute (lang), the linguistic property of ContentLanguageSpecial element; Service parameter sign (ServiceParaID), expression is obtained business parameters data according to this sign from professional parameter list, if this is 0, illustrate that then this business does not have corresponding professional play parameter; Extend information (ExtentInfo), character string represents a URI link, can obtain the more relevant information of current channel/business by this link. Content identification (ContentID), the attribute of content element, the overall situation is unique.
Table 4
Field Semantic
ContentClass Classifying content, character string, the type of presentation medium content, the value of single content type are " text ", " image ", " audio ", " video " or " application ", compound content type is " multipart ".
ContentGenre Content type.
Duration Duration, the reproduction time length of denoting contents or program, unit is second.
Media Multimedia element, indication adopt multi-medium data to describe professional information.
MediaType The dtd——data type definition of multimedia element sees Table 7.
ContentLanguageSpecial With the relevant content description element of languages.
Keyword Keyword, between a plurality of keywords with "; " separate.
DigestInfo Summary, the simple description of denoting contents.
Title Title.
AudioLang The indication of content sound accompanying language is separated with '/' between the different sound accompaniments, such as " Chinese/Tibetan language ".
SubtitleLang The subtitle language indication is separated with '/' between the different language, such as " Chinese/Tibetan language ".
lang The linguistic property of ContentLanguageSpecial element.
ServiceParaID The service parameter sign, expression is obtained business parameters data according to this sign from professional parameter list; If this is 0, illustrate that then this business does not have corresponding professional play parameter.
ExtentInfo Extend information represents a URI link, can obtain the more relevant information of current channel/business by this link.
ContentID Content identification, the attribute of content element, the overall situation is unique.
… …
Table 5 is service parameter elements of business parameters data class of the data message of electron service instruction among the embodiment, and the service parameter element has been described the required parameter of access service. Wherein, service parameter element (Para), dtd——data type definition is expanded in the future; Service parameter sign (ServiceParaID), the service parameter attribute of an element, the overall situation is unique.
Table 5
Field Semantic
  Para The service parameter element, dtd——data type definition is expanded in the future.
  ServiceParaID The service parameter sign, the service parameter attribute of an element, the overall situation is unique.
  ...   ...
Table 6 is Time of Day data types of the data message of electron service instruction among the embodiment, has described the expression format of ESG temporal information. Wherein, date element (Date), form " xxxx-xx-xx ", the expression year-moon-Ri; Time element (Time), form " xx:xx:xx ", during expression: minute: second.
Table 6
Field Semantic
UTCDateTimeType The Time of Day dtd——data type definition.
Date Date element, form " xxxx-xx-xx ", the expression year-moon-Ri.
Time Time element, form " xx:xx:xx ", during expression: minute: second.
Table 7 is media type data types of the data message of electron service instruction among the embodiment, has described multi-medium data. Purposes (Usage) provides multimedia purposes; Content type element (ContentType), content type are described and are seen RFC2046 (MIME) standard; Media data (MediaData), the base64Binary type; Media data (MediaURI) indicates a URI to connect.
Table 7
Field Semantic
MediaType The dtd——data type definition of Media element.
Usage Purposes, 8 signless integers, appendix C is seen in definition.
ContentType The content type element, character string, content type is described and is seen RFC2046 (MIME) standard.
MediaData Media data, the base64Binary type.
MediaURI Media data indicates a URI to connect.
Certainly, the present invention also can have other various embodiments, such as finishing the HLR authentication in when access. In the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (7)

1, a kind of transmission method of data message of electron service instruction, described method comprises: data message is divided according to type, be divided into one or more in business information class, arrangement information class, content information class and the business parameters data class, distinguish by the data type identification field; Sorted data message is cut apart by piece, distinguished by the data block identification field; Data block is divided into some joints, distinguishes by the joint sequence number field, and data section is corresponding one by one with the data cell of multiplexed sub frame; Data message is the main body of ESG, is packaged into the data cell of multiplexed sub frame, transmits in the ESG service logical channels.
2, method according to claim 1 is characterized in that: the business element relevant with described business information class comprises that type of service, professional classification, service parameter sign, Business Name, Business Name describe that character string, Business Name are described the languages attribute, freely indicated, key obtains descriptor, one or more in the service identification number.
3, method according to claim 1 is characterized in that: the professional extensible element relevant with described business information class comprise with the relevant professional extended description of languages, business description, service provider, professional languages describe, one or more in the dtd——data type definition of linguistic property with the relevant professional extended description of languages, multimedia element, multimedia element, extensible element, service identification number.
4, method according to claim 1, it is characterized in that: described arrangement information class, content information class and business parameters data class, zero-time, the programm name of describing program are provided respectively, the attribute of program, and one or more in the required parameter of access service.
5, method according to claim 1, it is characterized in that: described arrangement information class comprises the layout element, described layout element has been described the layout corresponding relation of professional and content, program is play zero-time, comprises that service identification number, content identification, subject element, theme, the linguistic property of subject element, time started, time started element data type definition, free indication, live indication, playback indication, key obtain one or more in identifying of descriptor, layout.
6, method according to claim 1, it is characterized in that: described content information class comprises content element, described content element has been described the attribute of program, comprises the dtd——data type definition of classifying content, content type, duration, multimedia element, multimedia element, one or more with in the relevant content description element of languages, keyword, summary, title, the indication of content sound accompanying language, subtitle language indication, the linguistic property, service parameter sign, extend information, content identification with the relevant content description element of languages.
7, method according to claim 1 is characterized in that: described business parameters data class description the required parameter of access service, comprise one or more in service parameter element, the service parameter sign.
CNB2007100734433A 2007-03-03 2007-03-03 Transmission method for data information of electronic service directory Expired - Fee Related CN100488252C (en)

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WO2011143870A1 (en) * 2010-05-20 2011-11-24 中兴通讯股份有限公司 Method for transmitting and receiving multimedia information and terminal thereof
WO2011147129A1 (en) * 2010-05-24 2011-12-01 中兴通讯股份有限公司 Method and apparatus for transmitting and receiving interactive service files
CN101291238B (en) * 2008-04-24 2011-12-07 中兴通讯股份有限公司 Implementing method and system for mobile multimedia data broadcast service
CN102118654B (en) * 2010-01-05 2013-07-10 联芯科技有限公司 Method, device and system for acquiring service information
CN103905891A (en) * 2012-12-28 2014-07-02 北京四达时代软件技术股份有限公司 Method for advertisement display, terminal and advertisement playing method and system
CN103905848A (en) * 2012-12-28 2014-07-02 北京四达时代软件技术股份有限公司 Mobile multimedia advertisement broadcasting method, system and server based on ESG
CN109150982A (en) * 2018-07-27 2019-01-04 湖南科技大学 A kind of data transmission method

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CN101291238B (en) * 2008-04-24 2011-12-07 中兴通讯股份有限公司 Implementing method and system for mobile multimedia data broadcast service
CN102118654B (en) * 2010-01-05 2013-07-10 联芯科技有限公司 Method, device and system for acquiring service information
WO2011143870A1 (en) * 2010-05-20 2011-11-24 中兴通讯股份有限公司 Method for transmitting and receiving multimedia information and terminal thereof
WO2011147129A1 (en) * 2010-05-24 2011-12-01 中兴通讯股份有限公司 Method and apparatus for transmitting and receiving interactive service files
CN103905891A (en) * 2012-12-28 2014-07-02 北京四达时代软件技术股份有限公司 Method for advertisement display, terminal and advertisement playing method and system
CN103905848A (en) * 2012-12-28 2014-07-02 北京四达时代软件技术股份有限公司 Mobile multimedia advertisement broadcasting method, system and server based on ESG
CN109150982A (en) * 2018-07-27 2019-01-04 湖南科技大学 A kind of data transmission method
CN109150982B (en) * 2018-07-27 2022-12-09 湖南科技大学 Data transmission method

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