CN102223575B - Mobile multimedia broadcasting system - Google Patents
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Abstract
The invention provides a mobile multimedia broadcasting system, comprising a general layer for analyzing the received external information and carrying out communication with an application layer through the external information; and an application layer for carrying out corresponding business processing according to the general layer information obtained by communicating with the general layer. In the mobile multimedia broadcasting system, the layered implementation of the CMMB (china mobile multimedia broadcasting) terminal can be achieved, so that a logic structure can be clear and reasonable, different logic layers can be realized by different factories, a new business used by different terminals generally can be ensured to be rapidly integrated, combined and popularized, the task complexity is reduced, the working efficiency is improved, and the cost for introducing the new business for different terminals can be saved. Besides, in the mobile multimedia broadcasting system, the terminal adaptation threshold is reduced, so as to be beneficial to expanding the coverage surface of the terminal of the mobile multimedia broadcasting system. The mobile multimedia broadcasting system has the advantages of openness, generality, safety, effectiveness, expandability and compatibility.
Description
Technical field
The present invention relates to China mobile multi-media broadcasting technology basically, more specifically, relates to mobile multimedia broadcast system.
Background technology
Mobile Multimedia Broadcasting (CMMB) is by adopting digital coding, and through wireless transmission, the mobile method that receives is carried out the propagation of TV programme.Reception is moved in the Mobile Multimedia Broadcasting support, in signal coverage areas, can be by receiving TV programme such as news, information, amusement whenever and wherever possible such as mobile phone, MP4 player (being a kind of multi-functional player that integrates audio frequency, video, picture browsing, e-book, broadcast receiver etc.), GPS portable terminals such as (global positioning systems), to satisfy the various demands of different user.
A kind of mobile multimedia broadcast system is provided in the prior art, it is characterized in that, comprise that content is integrated and broadcast module, service management module, radio network module, terminal, wherein, integrated and the broadcast module of described content, be used for integrated programme content and related service data, concrete multimedia service business is provided; Described service management module is used for carrying out application configuration and the bandwidth resources configuration of multimedia service business, and the multimedia service business that configures is sent to described radio network module; Described radio network module adopts S-band satellite and U wave band ground network to realize collaborative the covering, and the interactive many service architectures STiMi of satellite and ground technology is adopted in the channel transmission, is used for carrying out the multiplexing of mobile multimedia service business and transmission; Wherein, the S-band satellite is used for covering national territory, is used for the central nodule purpose whole nation and covers; U section ground network is used for the crowded city mobile multimedia broadcast signal and covers, and this locality that is used for central program and local program covers; Described terminal is user's handheld device, is used for being responsible for receiving the mobile multimedia service that described radio network module transmission comes.
Technique scheme provides radio and television services for the mobile phone of appointment, PDA the small screen such as (personal digital assistants) portable hand-held terminal etc. to a certain extent.
Yet the terminal of technique scheme is not stratified, and the manufacturer of any CMMB terminal all needs the bottom-up all functions of detail knowledge CMMB.In addition, the mobile multi-media broadcasting service of technique scheme (refers under the control of operator, the a series of programs that can broadcast step by step as per the schedule) development and application all is based on tens of kinds of terminal platforms such as MP4, mobile phone, GPS, the release of new business all needs integrated one by one with all kinds of terminal platforms, work and repeatability thereof and complexity are unfavorable for fast integration, integration and the release of new business.In addition, the terminal of Mobile Multimedia Broadcasting is regardless of level, and any manufacturer of doing terminal all needs the bottom-up all functions of detail knowledge Mobile Multimedia Broadcasting, has prolonged the exploitation end product cycle, is unfavorable for the update of end product.
Summary of the invention
Not stratified at mobile multimedia broadcast system terminal part in the prior art, be unfavorable for fast integration, the integration of new business and the defective of releasing, the present invention proposes a kind of mobile multimedia broadcast system that different terminals can be general, how the CMMB terminal is carried out layering thereby solved, and the technical problem of fast integration, integration and release new business.
The present invention proposes a kind of mobile multimedia broadcast system, comprising: general layer is used for resolving the external information that receives, and utilizes external information and application layer to communicate; And application layer, be used for carrying out corresponding Business Processing according to communicating the general layer information that obtains with general layer.
Preferably, general layer comprises: signal processing module is used for receiving external information, and external information is resolved; Service Processing Module is used for according to Business Processing parameter receive and analysis information; Information management module is used for and will be transferred to application layer from the resolving information of Service Processing Module; And memory management module, be used for storing and resolving information, and the parameter of record resolving information.
Preferably, the Business Processing parameter comprises: time parameter is used to indicate beginning and ending time or the duration of resolving information; The service identification parameter is used to indicate the employed channel number of resolving information; And the content identification parameter, be used to indicate the content of resolving information.
Preferably, the parameter of resolving information comprises: the path of resolving information, keyword, filename, title, time parameter, service identification parameter and content identification parameter.
Preferably, signal processing module comprises: the descrambling frame receives submodule, is used for receiving the signal through descrambling, and will sends to the demultiplexing submodule through the signal of descrambling; The demultiplexing submodule, be used for resolving the signal through descrambling, isolate video-frequency band information, audio section information, data segment information, electronic business guiding information, TS0 information and control information, and video-frequency band information and audio section information sent to audio frequency and video conversion submodule, data segment information is sent to the file data processing sub, electronic business guiding information is sent to the electron service instruction processing sub, TS0 information is sent to the TS0 processing sub, control information is sent to the signal controlling submodule; The electron service instruction processing sub is used for resolving electronic business guiding information; The TS0 processing sub is used for dissection process TS0 information; The file data processing sub is used for the data of signal processing module and Service Processing Module are write the file system submodule of storage administration, and is stored in database/UCL management submodule; Audio frequency and video conversion submodule is used for the audio/video flow of demultiplexing submodule output is converted into static file format; And the signal controlling submodule, be used for the coordination control that the descrambling frame receives submodule, demultiplexing submodule, electron service instruction processing sub, TS0 processing sub, file data processing sub, audio frequency and video conversion submodule.
Preferably, coordinating control comprises: the promoter module; When submodule clashes, coordinate the startup of submodule; Transfer of data between the submodule; And submodule gathering information.
Preferably, Service Processing Module comprises: business is controlled submodule, is used to each submodule received data file of application layer; Regularly push submodule, professional and be stored in the memory management module for the treatment of the timing class that the beginning and ending time is arranged; The real time propelling movement submodule for the treatment of real-time class business, and sends to information management module with the real-time streaming data that obtains; Trigger pushing processing sub, be used for receiving emergent broadcast information and public information, and received emergent broadcasting information and public information are sent to the triggering administration module; And the audio frequency and video processing sub, be used for the timed recording audio/video program, obtain and record tabulation, subscription programs and record selected program.
Preferably, information management module comprises: real-time flow management module is used for the real-time streaming data that receives is sent to application layer; And the triggering administration module, be used for and will send to application layer from triggering the information that pushes processing sub.
Preferably, flow data comprises: video stream data, audio stream data and data flow data.
Preferably, the flow management module comprises in real time: video flowing management submodule is used for received video stream data is sent to application layer; Audio stream management submodule is used for received audio stream data is sent to application layer; And the data stream management submodule, be used for received data flow data is sent to application layer.
Preferably, trigger administration module and comprise: urgent broadcast management submodule is used for and will sends to application layer from triggering the emergent broadcasting information that pushes processing sub; And public information management submodule, be used for and will send to application layer from triggering the public information that pushes processing sub.
Preferably, memory management module comprises: the file system submodule is used for storing and resolving information; And database/UCL manages submodule, is used for the parameter of record resolving information.
Preferably, application layer comprises: Configuration Manager is used for the information from general layer is configured; The directory management module is used for generating inventory interface according to predetermined bibliographic structure, and shows; And the search administration module, be used for the information from general layer is retrieved.
Utilize mobile multimedia broadcast system of the present invention, the layering of CMMB terminal can be realized, make the logical construction clear and rational, different logical layers can be realized by different producers, guarantee fast integration, integration and release the general new business of different terminals, reduce task complexity, improved operating efficiency, saved the cost of releasing new business for different terminals.In addition, this mobile multimedia broadcast system has reduced the adaptive threshold of terminal, is conducive to the coverage rate of rapid extended multimedia broadcasting system terminal.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structure chart of mobile multimedia broadcast system according to an embodiment of the invention;
Fig. 2 is the structure chart of the general layer of mobile multimedia broadcast system according to an embodiment of the invention;
Fig. 3 is the structure chart of the signal processing module of general layer according to an embodiment of the invention;
Fig. 4 is the structure chart of the Service Processing Module of general layer according to an embodiment of the invention;
Fig. 5 is the structure chart of the information management module of general layer according to an embodiment of the invention;
Fig. 6 is the structure chart of the memory management module of general layer according to an embodiment of the invention; And
Fig. 7 is the structure chart of the application layer of mobile multimedia broadcast system according to an embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in restriction the present invention.
Mobile multimedia broadcast system is open-destination formula general-purpose platform, and Fig. 1 is the structure chart of mobile multimedia broadcast system according to an embodiment of the invention.As shown in Figure 1, mobile multimedia broadcast system 100 comprises: general layer 102 and application layer 104.In addition, this mobile multimedia broadcast system can also comprise hardware layer, and the radiofrequency signal that this hardware layer is responsible for receiving is converted into accessible digital signal (being the descrambling multiplexed frame).This hardware layer comprises descrambling module (SIP, SMD, kilocalorie, MBBMS) and CMMB demodulation chip.Hardware using Mobile Multimedia Broadcasting demodulation chip and all kinds of CA card, this hardware is positioned at bottom, be responsible for the radiofrequency signal that receives is converted into accessible digital signal (namely, the descrambling multiplexed frame (wherein, scrambling refers to audio/video program and data are handled based on certain upset, undelegated receiving terminal can't correctly be presented, and descrambling is the inverse process of scrambling, finishes in the descrambler of user's receiving terminal; Multiplexed frame has encapsulated the Frame of business or control information, and the multiplexed frame of different identification uses different physical layer logic channels to send)), and export the descrambling multiplexed frame to general layer 102.The descrambling multiplexed frame from hardware layer that the general layer 102 of mobile multimedia broadcast system 100 will receive is resolved, and to application layer 104 output real-time stream, file and triggering category informations, the interface between hardware and the general layer 102 is followed the general driving interface specification.The general character of different business is handled unified to the general layer realization.The application layer 104 of mobile multimedia broadcast system 100 is carried out the corresponding service processing according to communicating general layer 102 information that obtain with general layer 102, and the interface between application layer 104 and the general layer 102 is followed the common application interface specification.
Hereinafter, will general layer 102 and the application layer 104 of mobile multimedia broadcast system 100 be described in detail further.
Fig. 2 is the structure chart of the general layer of mobile multimedia broadcast system according to an embodiment of the invention.As shown in Figure 2, the general layer 102 of mobile multimedia broadcast system 100 further comprises: signal processing module 202, Service Processing Module 204, information management module 206 and memory management module 208.Signal processing module 202 receives the descrambling multiplexed frame from hardware layer, and this descrambling multiplexed frame resolved, the information parameter of resolving comprises: the path of resolving information, keyword, filename, title, time parameter, service identification parameter and content identification parameter.Service Processing Module 204 is according to Business Processing parameter receive and analysis information, and wherein, the Business Processing parameter comprises: time parameter is used to indicate beginning and ending time or the duration of resolving information; The service identification parameter is used to indicate the employed channel number of resolving information; And the content identification parameter, be used to indicate the content of resolving information.Information management module 206 is used for and will be transferred to application layer from the resolving information of Service Processing Module 204.Memory management module 208 is used for storing and resolving information, and the parameter of record resolving information.
Fig. 3 is the structure chart of the signal processing module of general layer according to an embodiment of the invention.The message processing module 202 of general layer further comprises: the descrambling frame receives submodule 302, demultiplexing submodule 304, electron service instruction processing sub 306, TS0 processing sub 308, file data processing sub 310, audio frequency and video conversion submodule 312 and signal controlling submodule 314.
Further, the descrambling frame receives submodule 302, is used for receiving the signal through descrambling, and will send to demultiplexing submodule 304 through the signal of descrambling.
Electron service instruction processing sub 306, ESG (electron service instruction) is made of basic descriptor, data message and program prompt information.Wherein, basic descriptor has been described data message in the distribution condition of ESG business, update mode etc., transmits in the control logic channel; Data message has been described the business information relevant with mobile multi-media broadcasting service, professional extend information, arrangement information, content information and business parameters data, as a special mobile multi-media broadcasting service transmission; And program prompt information described the summary info of professional current slot and next time period broadcast program, with Mobile Multimedia Broadcasting look, audio service transmits.ESG processing sub 306 is used for dissection process from the ESG information of demultiplexing submodule 304.Can obtain the relevant information of multi-media broadcasting service by ESG, as Business Name, reproduction time, content outline etc., be convenient to terminal use retrieval and visit fast, and the upper strata is subscribed to class, downloaded professional use the such as class.
File data processing sub 310 is used for the data of signal processing module 202 and Service Processing Module 204 are write the file system submodule 602 of storage administration, and is stored in database/UCL management submodule 604 (with reference to figure 6).
Audio frequency and video conversion submodule 312 is used for the audio/video flow of demultiplexing submodule 304 outputs is converted into static file format.
Fig. 4 is the structure chart of the Service Processing Module of general layer according to an embodiment of the invention.As shown in Figure 4, the Service Processing Module 204 of general layer comprises: business is controlled submodule 402, is used to each submodule received data file of application layer 104, after receiving complete data, notifies each should be used for reading this data; Regularly push submodule 404, professional and be stored in the memory management module 208 for the treatment of the timing class that the beginning and ending time is arranged; Trigger and push processing sub 406, wherein, triggering propelling movement processing is mainly public information and urgent broadcast provides service, is used for receiving emergent broadcast information and public information, and received emergent broadcasting information and public information are sent to triggering administration module 510 (with reference to figure 5); Audio frequency and video processing sub 408 is used for the timed recording audio/video program, obtains and records tabulation, subscription programs and record selected program; And real time propelling movement submodule 410, for the treatment of real-time class business, and the real-time streaming data that obtains sent to information management module.
Fig. 5 is the structure chart of the information management module of general layer according to an embodiment of the invention.As shown in Figure 5, the information management module 206 of general layer comprises: real-time flow management module 502, be used for the real-time streaming data that receives is sent to application layer 104, and wherein, real-time streaming data comprises: video stream data, audio stream data and data flow data; And trigger administration module 510, be used for and will send to application layer 104 from triggering the information that pushes processing sub 406.
Flow management module 502 further comprises in real time: video flowing management submodule 504 is used for received video stream data is sent to application layer; Audio stream management submodule 506 is used for received audio stream data is sent to application layer; And data stream management submodule 508, be used for received data flow data is sent to application layer.
In addition, trigger administration module 510 and further comprise: urgent broadcast management submodule 512 is used for and will sends to application layer 104 from triggering the emergent broadcasting information that pushes processing sub 406; And public information management submodule 514, be used for and will send to application layer 104 from triggering the public information that pushes processing sub 406.
Fig. 6 is the structure chart of the memory management module of general layer according to an embodiment of the invention.As shown in Figure 6, the memory management module 208 of general layer comprises: when file system submodule 602, each module receive back or transfer in data, file is stored in the file system submodule 602; And database/UCL (unified content positioning mark) management submodule 604, for the parameter of record resolving information, wherein, UCL refers to " the short and small packet of locating file content ", the about hundreds of byte of total byte amount for " content identification ".Each public cultural file, no matter file size, no matter be text, image, audio or video, any network transmission distribution that also don't work, corresponding unique content identification.Formal name used at school be " unified content positioning mark " (Uniform Content Locator, UCL).UCL can comprise: fields such as content code, content title, synopsis, by these fields, the user can understand the main contents of information easily, and then is convenient to subscribe to and retrieval fast.The general layer of perfect mobile multimedia broadcast system supports application vendor to develop new business fast.
Fig. 7 is the structure chart of the application layer of mobile multimedia broadcast system according to an embodiment of the invention.As shown in Figure 7, the application layer 104 of mobile multimedia broadcast system comprises: Configuration Manager 702, directory management module 704 and search administration module 706.Wherein, Configuration Manager 702 is used for cooperating with general layer every and control information exchanges, and in different application, realizes difference in functionality.For example, record in the application in audio frequency and video, configuration management is finished and is obtained the timed recording tabulation, subscribes to and recording function.Regularly pushing in the application, configuration management is finished to obtain and is pushed tabulation, subscribes to and download energy supply.Directory management module 704 offers a close friend's of user interface according to set bibliographic structure, browses in terminal and downloads document directory structure, opens file by calling related application.Search administration module 706, function of search realizes the quick retrieval to file name and keyword, and Query Result is shown to the terminal use.In addition, this application layer 104 can also comprise: player module is used for playing video file and audio file; Browser module is used for browsing page; Reader module is used for the read text file; The communication navigation module is responsible for showing transport information; And the urgent broadcast module, be used for showing urgent broadcast.
Mobile multimedia broadcast system is as open-destination formula Universal Service Platform according to an embodiment of the invention, it is new software halfpace between terminal hardware and upper layer application, when bottom hardware is shielded, provide unified integrated interface to upper layer application, realize the fast integration of new business and integration flexibly.
Utilize mobile multimedia broadcast system of the present invention, the layering of CMMB terminal can be realized, make the logical construction clear and rational, different logical layers can be realized by different producers, guarantee fast integration, integration and release the general new business of different terminals, reduce task complexity, improved operating efficiency, saved the cost of releasing new business for different terminals.
This platform has reduced the adaptive threshold of terminal of mobile multi-media broadcasting service, is conducive to expand rapidly its terminal coverage rate.Can take full advantage of the proprietary entrance of mobile multi-media broadcasting service, concentrate the advantage business, actively provide service for the user.Can realize that service dynamic loads, and sets up its application deployment channel.The general layer of perfect mobile multimedia broadcast system supports application vendor to develop new business fast.Therefore, this mobile multimedia broadcast system possesses advantages such as opening, versatility, fail safe, validity, extensibility and compatibility.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. mobile multimedia broadcast system comprises:
General layer is used for resolving the external information that receives, and utilizes described external information and application layer to communicate; And
Described application layer is used for carrying out corresponding Business Processing according to communicating the general layer information that obtains with described general layer;
General layer comprises:
Signal processing module is used for receiving described external information, and described external information is resolved;
Service Processing Module is used for according to Business Processing parameter receive and analysis information;
Information management module is used for and will be transferred to described application layer from the described resolving information of described Service Processing Module; And
Memory management module is used for the described resolving information of storage, and records the parameter of described resolving information;
Described signal processing module comprises:
The descrambling frame receives submodule, is used for receiving the signal through descrambling, and described signal through descrambling is sent to described demultiplexing submodule;
The demultiplexing submodule, be used for resolving described signal through descrambling, isolate video-frequency band information, audio section information, data segment information, electronic business guiding information, TSO information and control information, and described video-frequency band information and described audio section information sent to audio frequency and video conversion submodule, described data segment information is sent to the file data processing sub, described electronic business guiding information is sent to the electron service instruction processing sub, described TSO information is sent to the TSO processing sub, described control information is sent to the signal controlling submodule;
The electron service instruction processing sub is used for resolving described electronic business guiding information;
The TSO processing sub is used for dissection process TSO information;
The file data processing sub is used for the data of described signal processing module and described Service Processing Module are write the file system submodule of storage administration, and is stored in database/UCL management submodule;
Audio frequency and video conversion submodule is used for the audio/video flow of described demultiplexing submodule output is converted into static file format; And
The signal controlling submodule is used for the coordination control that described descrambling frame receives submodule, described demultiplexing submodule, described electron service instruction processing sub, described TSO processing sub, described file data processing sub, described audio frequency and video conversion submodule.
2. mobile multimedia broadcast system according to claim 1 is characterized in that, described Business Processing parameter comprises:
Time parameter is used to indicate beginning and ending time or the duration of described resolving information;
The service identification parameter is used to indicate the employed channel number of described resolving information; And
The content identification parameter is used to indicate the content of described resolving information.
3. mobile multimedia broadcast system according to claim 2 is characterized in that, the parameter of described resolving information comprises: the path of resolving information, keyword, filename, title, time parameter, service identification parameter and content identification parameter.
4. mobile multimedia broadcast system according to claim 1 is characterized in that, described coordination control comprises:
Start described submodule;
When described submodule clashes, coordinate the startup of described submodule;
Transfer of data between the described submodule; And
Described submodule gathering information.
5. mobile multimedia broadcast system according to claim 1 is characterized in that, described Service Processing Module comprises:
Business is controlled submodule, is used to each submodule received data file of described application layer;
Regularly push submodule, professional and be stored in the described memory management module for the treatment of the timing class that the beginning and ending time is arranged;
The real time propelling movement submodule for the treatment of real-time class business, and sends to described information management module with the real-time streaming data that obtains;
Trigger pushing processing sub, be used for receiving emergent broadcast information and public information, and received described emergent broadcasting information and described public information are sent to the triggering administration module; And
The audio frequency and video processing sub is used for timed recording audio frequency and video red-letter days, obtains and records tabulation, subscription programs and record selected program.
6. mobile multimedia broadcast system according to claim 5 is characterized in that, described information management module comprises:
The flow management module is used for the real-time streaming data that receives is sent to described application layer in real time; And
Trigger administration module, be used for and send to described application layer from the information of described triggering propelling movement processing sub.
7. mobile multimedia broadcast system according to claim 1 is characterized in that, described flow data comprises: video stream data, audio stream data and data flow data.
8. mobile multimedia broadcast system according to claim 4 is characterized in that, described real-time flow management module comprises:
Video flowing management submodule is used for received video stream data is sent to described application layer:
Audio stream management submodule is used for received audio stream data is sent to described application layer; And
The data stream management submodule is used for received data flow data is sent to described application layer.
9. mobile multimedia broadcast system according to claim 1 is characterized in that, described triggering administration module comprises:
Urgent broadcast management submodule is used for and will sends to described application layer from the emergent broadcasting information of described triggering propelling movement processing sub; And
Public information management submodule is used for and will sends to described application layer from the public information of described triggering propelling movement processing sub.
10. mobile multimedia broadcast system according to claim 2 is characterized in that, described memory management module comprises:
The file system submodule is used for the described resolving information of storage; And
Database/UCL manages submodule, is used for the parameter of the described resolving information of record.
11., it is characterized in that described application layer comprises according to the described mobile multimedia broadcast system of claim l:
Configuration Manager is used for the information from described general layer is configured;
The directory management module is used for generating inventory interface according to predetermined bibliographic structure, and shows; And
The search administration module is used for the information from described general layer is retrieved.
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