CN101567740B - Method and device for transmitting multimedia broadcast service and receiving terminal - Google Patents
Method and device for transmitting multimedia broadcast service and receiving terminal Download PDFInfo
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- CN101567740B CN101567740B CN2009101423093A CN200910142309A CN101567740B CN 101567740 B CN101567740 B CN 101567740B CN 2009101423093 A CN2009101423093 A CN 2009101423093A CN 200910142309 A CN200910142309 A CN 200910142309A CN 101567740 B CN101567740 B CN 101567740B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method for transmitting multimedia broadcast service, which includes steps that a multiplexer adds business type field in multiplexing frame or expands reserved field of the multiplexing frame to business type field to mark business type of business; the multiplexer transmits the multiplexing frame including the business type field to a modulator; and the modulator modulates the multiplexing frame to electromagnetic wave and emits the electromagnetic wave to air. By inserting business type field in multiplexing frame or multiplexing sub-frame header, the invention can obtain business type corresponding to the business mark without receiving ESG, and realize business receiving and playing. The invention shortens time from power on to business playing for the terminal, increases service quality, saves cost investment of ESG related equipment without using ESG, saves unnecessary power consumption for the terminal, and increases system stability.
Description
Technical field
The present invention relates to filed of mobile multimedia broadcasting, especially a kind of transmission method of multi-media broadcasting service and device and receiving terminal.
Background technology
In recent years, digital mobile multimedia broadcasting technology and standard evolution are rapid, various standards provide multiple service content for the mobile multi-media broadcast terminal user, for example advertisement, weather forecast, news, sports cast, variety, multimedia broadcasting play and film etc., the user can select the service program of Mobile Multimedia Broadcasting according to the hobby of oneself.
China mobile multi-media broadcasting technology adopts time division multiplexing mode to send multi-media broadcasting service, and the duration of its broadcast channel frame is 1 second, is made up of 40 25 milliseconds time slot, and one or more time slots can transmit the data of a multiplexed frame encapsulation.As shown in Figure 1, in the multiplexed frame structure of Mobile Multimedia Broadcasting, multiplexed frame is divided into multiplex frame head, multiplexed frame payload and fills three parts.The mode that China mobile multi-media broadcasting technology adopts control information to separate with business datum sends, and when time slot during as control channel, corresponding multiplexed frame (MF_ID=0) encapsulates control information; And time slot is during as data channel, corresponding multiplexed frame (multiplexed frame MF_ID ≠ 0) encapsulation business datum.As shown in Figure 2, service integration frame payload can be divided into one or more multiplexed sub frames again, and each subframe is encapsulate video section, audio section and data segment behind the subframe head.
At present, multi-media broadcasting system receives and the process of broadcast program is: receive the control multiplexed frame, resolve control information table wherein, obtain service identification, receive electron service instruction (Electronic ServiceGuide, ESG) according to the type of service among the ESG (ServiceClass) field, judge service identification corresponding service type, the type of service of the business that receives is shown to the user, the user selects business, according to service identification and this professional relative parameters setting receive mode of selected business, after accomplishing the setting up, receive, handle and play user-selected business.
The type of service that the field value of ServiceClass field is represented is as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-ESG; 7-stream mode data, services, other reservations.
Obviously, just can't not judge service identification corresponding service type if get access to ESG, just the business classification that receives can't be shown to the user, in order to allow the user select business yet.And the data volume of ESG is usually bigger, obtains in the process of ESG to be easy to cause terminal from starting shooting the long time of play service consumption.Therefore, if exist a kind of effective and efficient manner more to obtain ESG to avoid terminal, the performance of system is improved greatly.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission method and device and receiving terminal of multi-media broadcasting service, realizes that need not to obtain ESG also can know service identification corresponding service type.
For solving the problems of the technologies described above, the transmission method of a kind of multi-media broadcasting service of the present invention comprises:
Multiplexer adds business type field or the reserved field of multiplexed frame is expanded to business type field in multiplexed frame, with the type of service of identification service;
The multiplexed frame that multiplexer will comprise business type field sends to modulator;
Modulator is modulated to electromagnetic wave with multiplexed frame, is transmitted in the air by reflector.
Further, after terminal received multiplexed frame, the business type field of demultiplexing multiplexed frame was known professional type of service, and is shown to the user.
Further, multiplexed frame is the control multiplexed frame, each multiplexed sub frame under each multiplexed frame parameter of the control information table of multiplexer in the control multiplexed frame adds business type field in describing, or the reserved field under each multiplexed sub frame description under each multiplexed frame parameter of control information table is expanded to business type field.
Further, multiplexed frame is the service integration frame, adds business type field in the subframe head of each multiplexed sub frame of multiplexer in the service integration frame, or the reserved field in the subframe head is expanded to business type field.
Further, a kind of transmitting device of multi-media broadcasting service comprises: multiplexer, modulator and reflector, wherein:
Multiplexer is used for adding business type field or the reserved field of multiplexed frame being expanded to business type field at multiplexed frame, with the type of service of identification service; The multiplexed frame that also will comprise business type field sends to modulator;
Modulator is used for multiplexed frame is modulated to electromagnetic wave, is transmitted in the air by reflector.
Further, this device also comprises terminal,
Terminal is used for receiving the multiplexed frame that comprises business type field, and the business type field of demultiplexing multiplexed frame, knows professional type of service, and is shown to the user.
Further, multiplexed frame is the control multiplexed frame;
Multiplexer, be used for adding business type field in each multiplexed sub frame description under each multiplexed frame parameter of the control information table of controlling multiplexed frame, or the reserved field under each multiplexed sub frame description under each multiplexed frame parameter of control information table is expanded to business type field.
Further, multiplexed frame is the service integration frame;
Multiplexer is used for adding business type field in the subframe head of each multiplexed sub frame of service integration frame, or the reserved field in the subframe head is expanded to business type field.
Further, a kind of receiving terminal of multi-media broadcasting service comprises: receiving equipment and treatment facility, wherein:
Receiving equipment is used for receiving the multiplexed frame that comprises business type field, and the multiplexed frame that will comprise business type field sends to treatment facility;
Treatment facility for the business type field of demultiplexing multiplexed frame, is known professional type of service, and is shown to the user.
Further, multiplexed frame is the control multiplexed frame;
Business type field during each multiplexed sub frame under each multiplexed frame parameter of control information table in the treatment facility demultiplexing control multiplexed frame is described.
Further, multiplexed frame is the service integration frame;
Business type field in the subframe head of each multiplexed sub frame in the treatment facility demultiplexing service integration frame.
In sum, the present invention is by inserting " type of service " field in the control multiplexed frame or in the multiplexed sub frame head, thereby need not to receive ESG and also can know service identification corresponding service type, realize professional reception and broadcast, the present invention has shortened the time of terminal from start to play service, has improved service quality, and the cost that does not use ESG also can save the ESG relevant device drops into, save the unnecessary power consumption of terminal, improved the stability of a system.
Description of drawings
Fig. 1 is the structure chart of mobile multimedia broadcasting multiplex frame head in the prior art;
Fig. 2 is the activate business structure chart of the subframe head of multiplexed sub frame behind the type field of the present invention;
Fig. 3 is the structure chart of the multiplexed frame payload of control multiplexed frame in the prior art;
Fig. 4 is the structure chart of multiplexing allocation list in the prior art;
Fig. 5 is the activate business structure chart of multiplexing allocation list behind the type field of the present invention;
Fig. 6 is the flow chart of the method for front transmitting multimedia broadcast business of the present invention;
Fig. 7 is the flow chart of the method for end side receiving multimedia broadcast business of the present invention;
Fig. 8 is the Organization Chart of the front of the transmitting device of multi-media broadcasting service of the present invention;
Fig. 9 is the Organization Chart of the end side of the transmitting device of multi-media broadcasting service of the present invention.
Embodiment
Prior art is known service identification corresponding service type by ESG, and for business such as data broadcasting, only need know that service identification and type of service just can receive and play, for the relevant business of audio/video program, ESG can provide TV guide, but, because the real-time playability of audio/video program, the user can not select to play, therefore, if do not see TV guide, ESG also only provides traffic type information, and visible ESG is except providing traffic type information, and its availability is not strong, but need to take ample resources and work out, and the terminal holding time is downloaded.
The present invention adopts and adds in multiplexed frame or expansion " type of service " field.As, the data volume of considering the control multiplexed frame is smaller, just can finish receiving general one or two second, and service identification is carried in the control multiplexed frame, therefore, can add " type of service " field in the control information table of control multiplexed frame is " type of service " field with the field extension that keeps maybe.And for example, therefore the corresponding business of each multiplexed sub frame, can expand to the reserved field in the multiplexed sub frame head " type of service " field or adds one " type of service " field.
Below in conjunction with accompanying drawing the present invention is described in detail.
Fig. 2 is the multiplexed frame payload of service integration frame in the mobile multi-media broadcasting service, and the multiplexed frame payload is made up of a plurality of multiplexed sub frames, wherein, the corresponding business of multiplexed sub frame, each multiplexed sub frame comprises: subframe head, video-frequency band, audio section and data segment.The subframe head mainly is the description to audio frequency and video section and data segment, therefore, the reserved field in the multiplexed sub frame head can be expanded to " type of service " field or adds one " type of service " field.Terminal receives multiplexed sub frame, parses " type of service " field, can know this business corresponding service type.
Fig. 3 is the multiplexed frame payload structure of control multiplexed frame in the mobile multi-media broadcasting service, the control multiplexed frame is made up of a plurality of control information tables, table is designated 0x02 for continuing period service duplexing configuration list, it is short-period service duplexing configuration list that table is designated 0x04, continue the configuration of period service duplexing configuration list and short-period service duplexing and be collectively referred to as multiplexing allocation list, different except the table sign, other parameter is all the same.Include each professional service identification in the multiplexing allocation list.
Fig. 4 is the multiplexing allocation list in the mobile multi-media broadcasting service, comprises the parametric description of multiplexed frame and multiplexed sub frame, contains a plurality of multiplexed sub frames in each multiplexed frame, the corresponding business of each multiplexed sub frame, the corresponding service identification of multiplexed sub frame.After terminal receives multiplexing allocation list, can know the service identification that each is professional, and relevant parameter that should business, as: RS bit rate, byte-interleaved pattern, LDPC code rate, modulation system, scrambler mode, sequential quantity and the time sequence number etc.
Fig. 5 is for " reservation " field extension being the multiplexing allocation list after " type of service " field, have 7 kinds of types of service at present, and " reservation " field is 4 bits, expand to " type of service " field after, can represent 16 kinds of types of service at most, meet instructions for use fully.Terminal can be known service identification and type of service after receiving multiplexing allocation list, needn't obtain reception, processing and broadcast that ESG just can carry out user-selected business again.
Fig. 6 is the method for front end system transmitting multimedia broadcast business of the present invention, comprising:
601: program server is encoded to sound, video data with sound, video flowing, and the data broadcast files is cut apart and is encapsulated as packet, and sound, video data and packet are sent to scrambler;
602: scrambler carries out scrambling to sound, video data and packet, and sends to multiplexer;
The 603:ESG server is cut apart the ESG file, and is encapsulated as the ESG bag, and the ESG bag is sent to multiplexer;
604: " reservation " field extension under multiplexer is described each multiplexed sub frame under each multiplexed frame parameter of control information table is " type of service " field, according to the field value of multiplexed sub frame corresponding service type setting " type of service " field, the field value of " type of service " field and the corresponding relation of type of service are as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-ESG; 7-stream mode data, services;
Multiplexer also can add " type of service " field in each multiplexed sub frame description under each multiplexed frame parameter, or be " type of service " field with " reservation " field extension in the subframe head of the multiplexed sub frame of service integration frame, or in the subframe head, add " type of service " field, no matter adopt which kind of mode, the set-up mode of " type of service " field all is identical.
In order to adapt to the requirement of following more business, " type of service " field can be carried out the expansion of length, is " type of service " field extension or inserts the more bits position, to represent more type of service.
605: the drop multiplexer apparatus purchase of property be engaged in sign and other control parameter, the control information gauge seal is dressed up the control multiplexed frame, with sound, video data and the data envelope service integration frame of packing into, will control multiplexed frame and the service integration frame sends to modulator;
606: modulator will control multiplexed frame and the service integration frame is modulated on the electromagnetic wave of physical channel, by reflector electromagnetic wave is transmitted in the air.
Fig. 7 is the method for terminal system receiving multimedia broadcast business of the present invention, comprising:
701: receiving equipment receives electromagnetic wave, and the electromagnetic wave that receives is tuned as multiplexed frame, and multiplexed frame is sent to treatment facility;
702: after treatment facility received multiplexed frame, demultiplexing obtained service identification, and demultiplexing " type of service " field obtains multiplexed sub frame corresponding service type, and is shown to the user;
In the control multiplexed frame, add or during expansion " type of service " field the business type field during each multiplexed sub frame under each multiplexed frame parameter of the control information table in the treatment facility demultiplexing control multiplexed frame is described.
In the service integration frame, add or during expansion " type of service " field the business type field in the subframe head of each multiplexed sub frame in the treatment facility demultiplexing service integration frame.
703: after the user selected business, treatment facility arranged receive mode according to the service identification of user-selected business and the relevant parameter of type of service (RS bit rate, byte-interleaved pattern, LDPC code rate, modulation system, scrambler mode, sequential quantity and time sequence number etc.);
704: receiving equipment receives the data of user-selected business and sends to treatment facility, and treatment facility is handled and the play service data, comprises playing audio-video or browsing data broadcasted content.
Fig. 8 is the fore device of multi-media broadcasting service transmitting device of the present invention, comprising: program server, scrambler, ESG server, multiplexer, demodulator and reflector, wherein:
Program server is used for sound, video flowing are encoded to sound, video data, and the data broadcast files is cut apart and is encapsulated as packet, and sound, video data and packet are sent to scrambler;
Scrambler is used for sound, video data and packet are carried out scrambling, and sends to multiplexer;
The ESG server is used for the ESG file is cut apart, and is encapsulated as the ESG bag, and the ESG bag is sent to multiplexer;
Multiplexer, being used for " reservation " field extension under each multiplexed sub frame description under each multiplexed frame parameter of control information table is " type of service " field, according to the field value of multiplexed sub frame corresponding service type setting " type of service " field, the field value of " type of service " field and the corresponding relation of type of service are as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-ESG; 7-stream mode data, services; Service identification and other control parameter is set, the control information gauge seal is dressed up the control multiplexed frame, with sound, video data and the data envelope service integration frame of packing into, will control multiplexed frame and the service integration frame sends to modulator;
Multiplexer also can add " type of service " field in each multiplexed sub frame description under each multiplexed frame parameter, or be " type of service " field with " reservation " field extension in the subframe head of the multiplexed sub frame of service integration frame, or in the subframe head, add " type of service " field, no matter adopt which kind of mode, the set-up mode of " type of service " field all is identical.
Modulator for controlling the electromagnetic wave that multiplexed frame and service integration frame are modulated to physical channel, is transmitted into electromagnetic wave by reflector in the air.
Fig. 9 is the terminal installation of multi-media broadcasting service transmitting device of the present invention, comprising: receiving equipment and treatment facility, and wherein, receiving equipment can be tuner or baseband chip, treatment facility can comprise demodulation multiplexer and upper application module.
Receiving equipment is used for receiving electromagnetic wave, and the electromagnetic wave that receives is tuned as multiplexed frame, and multiplexed frame is sent to treatment facility;
The demodulation multiplexer for the treatment of facility, receive multiplexed frame after, demultiplexing obtains service identification, demultiplexing " type of service " field obtains multiplexed sub frame corresponding service type, and is shown to the user; After the user selected business, treatment facility arranged receive mode according to the service identification of user-selected business and the relevant parameter of type of service (RS bit rate, byte-interleaved pattern, LDPC code rate, modulation system, scrambler mode, sequential quantity and time sequence number etc.); Receiving equipment receives the data of user-selected business and sends to treatment facility, and treatment facility is handled and the play service data, comprises playing audio-video or browsing data broadcasted content.
In the control multiplexed frame, add or during expansion " type of service " field the business type field during each multiplexed sub frame under each multiplexed frame parameter of the control information table in the treatment facility demultiplexing control multiplexed frame is described.
In the service integration frame, add or during expansion " type of service " field the business type field in the subframe head of each multiplexed sub frame in the treatment facility demultiplexing service integration frame.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (5)
1. the transmission method of a multi-media broadcasting service comprises:
Each multiplexed sub frame under each multiplexed frame parameter of the control information table of multiplexer in the control multiplexed frame adds business type field in describing, or the reserved field under each multiplexed sub frame under each multiplexed frame parameter of described control information table described expands to business type field, or add business type field in the subframe head of each multiplexed sub frame in the service integration frame, or the reserved field in the described subframe head expanded to business type field, with the type of service of identification service;
The described drop multiplexer apparatus purchase of property be engaged in sign and other control parameter are dressed up the control multiplexed frame with the control information gauge seal, with sound, video data and the data envelope service integration frame of packing into, will control multiplexed frame and the service integration frame sends to modulator;
Described modulator will control multiplexed frame and the service integration frame is modulated to electromagnetic wave, is transmitted in the air by reflector;
The field value of described business type field and the corresponding relation of type of service are as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-electron service instruction (ESG); 7-stream mode data, services.
2. the method for claim 1 is characterized in that,
After terminal received described multiplexed frame, the business type field of the described multiplexed frame of demultiplexing was known professional type of service, and is shown to the user.
3. the transmitting device of a multi-media broadcasting service comprises: multiplexer, modulator and reflector, wherein:
Described multiplexer, be used for adding business type field in each multiplexed sub frame description under each multiplexed frame parameter of the control information table of controlling multiplexed frame, or the reserved field under each multiplexed sub frame under each multiplexed frame parameter of described control information table described expands to business type field, or add business type field in the subframe head of each multiplexed sub frame in the service integration frame, or the reserved field in the described subframe head expanded to business type field, with the type of service of identification service; Service identification and other control parameter also is set, the control information gauge seal is dressed up the control multiplexed frame, with sound, video data and the data envelope service integration frame of packing into, will control multiplexed frame and the service integration frame sends to modulator;
The field value of described business type field and the corresponding relation of type of service are as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-electron service instruction (ESG); 7-stream mode data, services;
Described modulator is used for controlling multiplexed frame and the service integration frame is modulated to electromagnetic wave, is transmitted in the air by described reflector.
4. device as claimed in claim 3 is characterized in that, this device also comprises terminal,
Described terminal is used for receiving the described multiplexed frame that comprises described business type field, and the business type field of the described multiplexed frame of demultiplexing, knows professional type of service, and is shown to the user.
5. the receiving terminal of a multi-media broadcasting service comprises: receiving equipment and treatment facility, wherein:
Described receiving equipment is used for receiving the multiplexed frame that comprises business type field, and the described multiplexed frame that comprises business type field is sent to described treatment facility;
Described treatment facility for the business type field of the described multiplexed frame of demultiplexing, is known professional type of service, and is shown to the user; In the control multiplexed frame, add or during expansion " type of service " field the business type field during each multiplexed sub frame under each multiplexed frame parameter of the control information table in the described treatment facility demultiplexing control multiplexed frame is described; In the service integration frame, add or during expansion " type of service " field the business type field in the subframe head of each multiplexed sub frame in the described treatment facility demultiplexing service integration frame;
The field value of described business type field and the corresponding relation of type of service are as follows: the 1-TV; The 2-audio broadcasting; 3-short format video clip; The 4-file is downloaded; The 5-software administration; 6-electron service instruction (ESG); 7-stream mode data, services.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101423093A CN101567740B (en) | 2009-05-27 | 2009-05-27 | Method and device for transmitting multimedia broadcast service and receiving terminal |
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| CN2009101423093A CN101567740B (en) | 2009-05-27 | 2009-05-27 | Method and device for transmitting multimedia broadcast service and receiving terminal |
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| CN101567740B true CN101567740B (en) | 2013-08-07 |
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| CN103079111B (en) * | 2013-01-25 | 2017-04-12 | 深圳创维数字技术有限公司 | Digital television terminal and management method of digital television business |
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| CN101296045A (en) * | 2008-06-02 | 2008-10-29 | 中兴通讯股份有限公司 | Effective service data extraction method and device |
| CN101330398A (en) * | 2008-07-25 | 2008-12-24 | 中兴通讯股份有限公司 | Method for transmitting business data flow |
| CN101414887A (en) * | 2008-11-27 | 2009-04-22 | 中兴通讯股份有限公司 | Method and system for implementing data broadcast |
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| WO2007066997A1 (en) * | 2005-12-10 | 2007-06-14 | Samsung Electronics Co., Ltd. | Method of and apparatus for providing and receiving video service in digital audio broadcasting |
| WO2008113237A1 (en) * | 2007-03-21 | 2008-09-25 | Zte Corporation | A method for transmitting mobile multimedia broadcast electronic service guide |
| CN101286809A (en) * | 2008-05-07 | 2008-10-15 | 中兴通讯股份有限公司 | Method and device for conditional receiving update of plug-in by multimedia broadcast |
| CN101296045A (en) * | 2008-06-02 | 2008-10-29 | 中兴通讯股份有限公司 | Effective service data extraction method and device |
| CN101330398A (en) * | 2008-07-25 | 2008-12-24 | 中兴通讯股份有限公司 | Method for transmitting business data flow |
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