CN102594480A - Broadcast data transmission method and broadcast data transmitting and receiving device - Google Patents
Broadcast data transmission method and broadcast data transmitting and receiving device Download PDFInfo
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- CN102594480A CN102594480A CN2012100200776A CN201210020077A CN102594480A CN 102594480 A CN102594480 A CN 102594480A CN 2012100200776 A CN2012100200776 A CN 2012100200776A CN 201210020077 A CN201210020077 A CN 201210020077A CN 102594480 A CN102594480 A CN 102594480A
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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 discloses a broadcast data transmission method and a broadcast data transmitting and receiving device. The method comprises the following steps as follows: a network side transmits a PSG (Push Service Guide) to a terminal, wherein PSG information contains content classification information, content sending time information and content attribute information; and under the situation that contents are subscribed by the terminal through the classification information, the terminal receives business content files of the subscribed contents according to the content sending time information and the content attribute information of the subscribed contents. By means of the invention, the terminal can selectively receive the business content files corresponding to the subscribed contents so as to reduce the network overhead, reduce the information transmission amount, improve the user experience and reduce the re-receiving possibility due to receiving failure; and the time of receiving data through the terminal also can be remarkably shortened so as to reduce the consumption of the terminal, be beneficial to improving the portability of the terminal and prolong the service life of the terminal and a battery.
Description
Technical field
The present invention relates to the multimedia broadcasting field, and especially, relate to a kind of transmission method of broadcast data and the sending and receiving device of broadcast data.
Background technology
At present, filed of mobile multimedia broadcasting main business type is video, audio service, and the application scenarios that data push the class business is more single: after having only the user initiatively to start terminal and corresponding service client, could receive business datum; The user can't optionally receive and filter business tine; Cause front-end platform to repeat to broadcast data content in a large number in order to guarantee most of terminal successfully to receive; The waste system bandwidth, simultaneously user terminal also possibly receive and much not hope the content paid close attention to, influences user experience.
Must all receive when the receiving broadcast service to terminal in the correlation technique and to cause the problem that network overhead is big, the terminal power consumption increases and reduces user experience, not propose effective solution at present as yet.
Summary of the invention
The problem the present invention who causes that network overhead is big, the terminal power consumption increases and reduce user experience be must all receive when the receiving broadcast service to terminal in the correlation technique and a kind of transmission method of broadcast data and the sending and receiving device of broadcast data proposed; Can avoid the terminal to receive the content of not paying close attention to; Reduce the power consumption at terminal, save network overhead.
Technical scheme of the present invention is achieved in that
A kind of transmission method of broadcast data is provided according to an aspect of the present invention.
Transmission method according to broadcast data of the present invention comprises: network side is sent to the terminal with pushing service guide PSG information, wherein, comprises content category message, down sending content temporal information and contents attribute information in the PSG information; Under the situation of through classified information content being subscribed at the terminal, the business tine file of the content that the terminal should be subscribed to according to the down sending content temporal information and the contents attribute message pick-up of the content of subscribing to.
Wherein, content category message is used to describe the classification of each content, and is used to represent classifying content and other corresponding relation of classifying content level.
In addition, below the down sending content temporal information is used for describing one of at least: the time started that each business tine file issues, broadcast service identification and local time zone information that duration, business are broadcast; And the down sending content temporal information also is used for representing the corresponding relation of each content identification of business tine file number and classification stage alias.
In addition, the contents attribute information of each content is used to describe the quantity of this content corresponding service content file.
And; This method may further include: for the content of each subscription; The business tine file of this content receive finish after, the quantity of the business tine file in the contents attribute information that the quantity of the business tine file that receives is corresponding with this content of terminal compares; If the quantity of the business tine file that receives is less than the quantity of the business tine file in the contents attribute information; Then the terminal confirms that the business tine file of this content takes defeat, and receives again according to the down sending content temporal information of this content in the PSG information business tine file to this content.
In addition, the content category message in the PSG information, down sending content temporal information issue through predetermined policy and by predetermined dedicated channel.
In addition, for each content, the contents attribute information of this content is with the business tine file of this content, is issued to the terminal according to the down sending content temporal information of this content.
In addition, alternatively,, when the terminal begins to receive the business tine file of this content, the business tine file storage that receives is preserved in the temporary folder at terminal for the content of each subscription; The ratio that the business tine file of this content finishes receiving reach the predetermined ratio threshold value or situation about finishing receiving fully under; The business tine file that the terminal will receive is transferred to other specified folders; Wherein, the file of specified folder is visible to the user, and can be by user capture.
In addition, this method may further include: network side upgrades PSG information with predetermined time interval, and the PSG information after will upgrading is sent to the terminal; Under the PSG information and the PSG information condition of different after the renewal of terminal preservation, the terminal utilizes the PSG information that receives to replace the PSG information of script preservation.
A kind of dispensing device of broadcast data is provided according to a further aspect in the invention.
This device comprises: first broadcast module is used for according to predetermined policy and by predetermined dedicated channel broadcasted content classified information and down sending content temporal information; Second broadcast module is used for the business tine file according to each content of down sending content temporal information transmission, and wherein, for each content, second broadcast module is broadcasted the contents attribute information of this content with the business tine file of this content.
A kind of receiving system of broadcast data is provided in accordance with a further aspect of the present invention.
This device comprises: first receiver module is used for receiving content category message and down sending content temporal information according to predetermined policy broadcasting through predetermined dedicated channel; Subscribing module is used for generating according to content category message the textural classification catalogue of content, and is used for according to the selected content of subscribing to of user's indication; Regularly start module, be used to carry out timing, and under the situation of the down sending content time of the content of subscribing to arrival, start second receiver module; Second receiver module is used for receiving the business tine file of each content and the contents attribute information of broadcasting with this business tine regularly starting under the control of module.
In addition, this device may further include: memory management module, for the content of each subscription, when the terminal begins to receive the business tine file of this content, the business tine file storage that receives is preserved in the temporary folder at terminal; The ratio that the business tine file of this content finishes receiving reach the predetermined ratio threshold value or situation about finishing receiving fully under; The business tine file that memory management module will receive is transferred to other specified folders; Wherein, The file of specified folder is visible to the user, and can be by user capture.
In addition, the contents attribute information of each content is used to describe the quantity of this content corresponding service content file; And, second receiver module be further used for the business tine file of the content of each subscription receive finish after, the quantity of the business tine file in the quantity of the business tine file that receives, the contents attribute information corresponding with this content is compared; If the quantity of the business tine file that receives, confirms then that the business tine file of this content takes defeat less than the quantity of the business tine file in the contents attribute information; And, regularly start module and further be same as and control second receiver module according to the down sending content temporal information of this content the business tine file of this content is received again.
By means of the present invention, make the terminal to subscribe to, when the file of received content according to the classification that content category message is subscribed to needs; Can optionally receive the pairing business tine file of the content of having subscribed to, thereby reduce network overhead, reduce transinformation; Make the user can watch the service scripts that oneself is subscribed to, improve user experience, and; Because the terminal carried out the subscription of content, so the data volume of actual reception can reduce, thereby reduced the possibility that receives again because take defeat; The time that Data Receiving is carried out at the terminal can also obviously be shortened; Thereby reduced the power consumption at terminal, helped to improve the portability at terminal, prolonged the useful life of terminal and battery.
Description of drawings
Fig. 1 is the flow chart according to the transmission method of the broadcast data of the embodiment of the invention;
Fig. 2 is the realization schematic diagram according to the transmission method of the broadcast data of the embodiment of the invention;
Fig. 3 is the detailed process flow chart according to the transmission method of the broadcast data of the embodiment of the invention;
Fig. 4 is the signaling process figure that obtains subscription information in the transmission method according to the broadcast data of the embodiment of the invention;
Fig. 5 is according to the flow chart that upgrades subscription information in the transmission method of the broadcast data of the embodiment of the invention;
Fig. 6 is according to the flow chart that adds subscription information in the transmission method of the broadcast data of the embodiment of the invention;
Fig. 7 is according to the flow chart that carries out Data Receiving in the transmission method of the broadcast data of the embodiment of the invention;
Fig. 8 is the block diagram according to the dispensing device of the broadcast data of the embodiment of the invention;
Fig. 9 is the block diagram according to the receiving system of the broadcast data of the embodiment of the invention.
Embodiment
To above situation, the present invention proposes a kind of transmission plan of broadcast data, and has proposed to realize the sending and receiving device of this scheme.Through technical scheme of the present invention; It is pushing service guide (Push Service Guide that front end sends customizing messages files such as content category message, transmitting time table through broadcast mode; Abbreviate PSG as) the file bag, the terminal obtains the corresponding relation of flag and professional classification from the sort file of PSG; From the time file of PSG, respectively broadcast professional ID, the time started that regularly receives and broadcast duration, the terminal regularly receives in selected business set by step.The terminal obtains attribute informations such as title, keyword, summary, file number from the contents attribute file; According to this with file sheet composite document piece until synthetic whole file; Can when data replay, realize the file subsequent collection if reception is imperfect, solve technological difficulties such as terminal classification subscription, backstage selective reception, power saving.
To describe specific embodiment of the present invention in detail below.
According to embodiments of the invention, a kind of transmission method of broadcast data is provided.
As shown in Figure 1, comprise according to the transmission method of the broadcast data of the embodiment of the invention:
Step S101, network side is sent to the terminal with PSG information, wherein, comprises content category message, down sending content temporal information and contents attribute information in the PSG information;
Step S103, under the situation of through classified information content being subscribed at the terminal, the business tine file of the content that the terminal should be subscribed to according to the down sending content temporal information and the contents attribute message pick-up of the content of subscribing to.
By means of above-mentioned processing, make the terminal to subscribe to, when the file of received content according to the classification that content category message is subscribed to needs; Can optionally receive the pairing business tine file of the content of having subscribed to, thereby reduce network overhead, reduce transinformation; Make the user can watch the service scripts that oneself is subscribed to, improve user experience, and; Because the terminal carried out the subscription of content, so the data volume of actual reception can reduce, thereby reduced the possibility that receives again because take defeat; The time that Data Receiving is carried out at the terminal can also obviously be shortened; Thereby reduced the power consumption at terminal, helped to improve the portability at terminal, prolonged the useful life of terminal and battery.
Wherein, content category message can be used to describe the classification of each content corresponding to sort file ContentClassification.xml, and is used to represent classifying content and other corresponding relation of classifying content level.Ucl_class in the ContentClassification.xml file is the classifying content rank, is divided into level Four.The ucl_class_levelno naming rule is: totally 6 of ucl_class_levelno, and as the flag of classifying content.The classification of the 1st bit-identify one-level, the 2nd bit-identify secondary classification, the 3rd, 4 bit-identify reclassifies, the classification of the 5th, 6 bit-identify level Four.
In addition; The down sending content temporal information (for example; Can be down sending content temporal information table) can be corresponding to time file ContentSchedule.xml, below being used for describing one of at least: the time started that each business tine file issues, broadcast service identification and local time zone information that duration, business are broadcast; And the down sending content temporal information also is used for representing the corresponding relation of each content identification of business tine file number and classification stage alias.TimeZone in the ContentSchedule.xml file representes the local zone time skew, and syntax rule is: 6 bit fields (binary system), highest order indication time zone polarity; When putting ' 0 '; The expression local zone time is early than the UTC time, and when putting ' 1 ', the expression local zone time is later than the UTC time.Back 5 bit representation time offset, span 0～24, unit is 0.5 hour.ContentID in the ContentSchedule.xml file is content identification number, is generated by front end system, in 72 hours, can not repeat, and is corresponding one by one with particular content.StartTime representes the time started that business tine issues, and is made up of date and time.Duration representes that content broadcasts duration, and unit is second.
The corresponding ContentAttribute.xml file of the contents attribute information of each content is used to describe the quantity of this content corresponding service content file, and can further describe the information such as title, keyword, summary of file.Title represent content title in the ContentAttribute.xml file, Keyword represent content keyword, Abstract represents summary, and Fileno represents the file number of this content bag.
And, for the content of each subscription, the business tine file of this content receive finish after, the quantity of the business tine file in the contents attribute information that the quantity of the business tine file that receives is corresponding with this content of terminal compares; If the quantity of the business tine file that receives less than the quantity of the business tine file in the contents attribute information (at this moment; The file of this content is not all received by the terminal); Then the terminal confirms that the business tine file of this content takes defeat, and receives again according to the down sending content temporal information of this content in the PSG information business tine file to this content.It should be noted that; Issue temporal information except the moment that can specify repeating transmission, also can combine other mode, for example; For important content file; Can the mode of at every turn sending be configured to " sending (N is greater than 1) continuously N time ", this mode can represent to send the time of the business tine file of this content equally at every turn, and this mode is equally in the application's scope.
In correlation technique, when receiving broadcast data, probably because of the small data incompleteness identical content of having to heavily receive or receive repeatedly; Long-time reception data can increase the power consumption at terminal; Reduce the portability and the life-span of portable terminal, and receive again, can effectively shorten the terminal and carry out the time that broadcast data receives through the file of the content that selectively success not received; Reduce power consumption, prolong the useful life at terminal.And through the selectivity that the present invention proposes the business tine file of bust this is heavily received; Can guarantee effectively that the terminal receives ordered business tine; Improve reliability of data transmission; And can guarantee that the terminal receives only a small amount of as far as possible data in the heavy time receiving, thereby avoid the heavily receipts of data can obviously increase power consumption of terminal and Data Receiving problem consuming time.
In addition, the content category message in the PSG information, down sending content temporal information issue through predetermined policy and by predetermined dedicated channel (for example, can be special-purpose service channel).
In addition, for each content, the contents attribute information of this content is with the business tine file of this content, is issued to the terminal according to the down sending content temporal information of this content.Be packaged in the concrete propelling movement business tine file bag and issue with the road.
That is to say, when the terminal receives content category message and down sending content temporal information, do not receive the business tine file and the contents attribute information of related content, and when the received content attribute information, will receive the corresponding business data file.
In addition, for the content of each subscription, when the terminal begins to receive the business tine file of this content, the business tine file storage that receives is preserved in the temporary folder at terminal; The ratio that finishes receiving fully or when time of reception finishes, finish receiving at the business tine file of this content reaches the first predetermined ratio threshold values or the ratio that in receiving course, finishes receiving reaches under the situation of the second predetermined ratio threshold value; The business tine file that the terminal will receive is transferred to other specified folders; Wherein, The file of specified folder is visible to the user; And can be by user capture (for example, the user can the browser document content, also can operation such as delete to file); In addition, the first and second above-mentioned predetermined ratio threshold values can be provided with flexibly, and the first predetermined ratio threshold value can be identical or different with the second predetermined ratio threshold value.
That is to say; In the business tine file receiving course of a content; If the business tine file of this content receives smoothly, the terminal use just can see the business tine of reception, the partial document of not receiving can after the continuation reception; Thereby the user can be watched/uppick broadcasting as early as possible, further improve user experience.
In addition, network side upgrades PSG information with predetermined time interval, and the PSG information after will upgrading is sent to the terminal; Under the PSG information and the PSG information condition of different after the renewal of terminal preservation, the terminal utilizes the PSG information that receives to replace the PSG information of script preservation.
To describe the operation flow that multi-medium data receives below in detail.
For the data content categorizing selection that realizes CMMB receives and during automatic reception; As shown in Figure 2, data propelling movement flow process is following: get access to the single information of the subscription programs of returning, filter information inserts in the database afterwards; Generate the data manipulation tabulation of subscribing to; Set the response timer afterwards, and carry out timer and wake operations such as terminal, response data receive/stop, file transfer up, and will adjust back the result and turn back in the database.
Fig. 3 shows the concrete realization flow according to the data broadcast service of the embodiment of the invention.As shown in Figure 3, concrete implementation procedure is following:
At first, starting up of terminal is carried out " obtaining PSG " task;
At this moment, whether the terminal inspection need upgrade the tabulation of PSG Push Service; If the tabulation of PSG Push Service needs to upgrade, then do not do any operation, following steps are carried out in continuation in proper order; If it is new that the tabulation of PSG Push Service mustn't need, then the user upgrades subscription information;
The terminal obtains and resolves PSG, upgrades PSG according to the PSG data message and pushes classification chained list and the task of propelling movement chained list;
Regularly upgrade PSG according to the PSG update mechanism and push task list, return step 2;
The terminal is passed to client with the PSG classified information through interface; Wherein, The client here is appreciated that to being modular unit integrated in the terminal, also can be mounted in the application on the terminal, and client can realize broadcasting subscribing to selects to wait the basic function that relates to broadcasting service;
The user upgrades subscription information;
The content designator in the classification is subscribed to through the user in the terminal, generates to push subscription table;
Primary data is handled, and generates to push table and file traversal lists;
Enactment document shifts timer, pushes task list according to data and sets initial timer time;
The terminal receives data on time, and the contents attribute file that when receiving an assignment, need resolve among the PSG carries out the content designator contrast.If it is not correspondence then receive, if corresponding then abandon;
Accomplish when receiving data at the terminal, needs to judge that receiving success rate shifts data;
Judge whether to be last task, stop Data Receiving if then close chip;
If not the blanking time of then judging next task whether greater than 5 minutes, if more than or equal to 5 minutes then the chip dormancy time is set; If just received next task according to pushing task list less than 5 minutes.
To sum up, according to scheme of the present invention mainly comprise classification subscription, Data Receiving, optimization is heavily received and identify these several aspects, time zone, also relate to PSG in addition and upgrade administrative mechanism.
Wherein, classification is subscribed to and to be meant that mainly the terminal pushes when professional receiving data, through obtaining the subscription of classifying of received content in the PSG information;
Data Receiving mainly is meant subscription information and the content reception time to the PSG classification through the user, and the terminal is implemented in special time and effectively receives the purpose that customizes file.
Optimization is heavily received and is meant that mainly PSG provides local subsequent collection content identification information, so that the terminal selectively reception needs the incomplete content fragment of polishing, thereby avoids poor efficiency integral body heavily to receive.
The sign time zone mainly is meant through the sign of the time zone among the PSG, solves and stride the time zone time calibration problem, so that the reception data of terminal precise and high efficiency.
To specifically be described in detail below these several aspects.
(1) classification is subscribed to
Comprise during the terminal processes classified information that four flow processs are respectively: obtain classified information, upgrade classified information, transmit classified information and safeguard subscription information.
(1) obtains classified information
PSG obtains and is meant log-on data stream and through resolution data stream, obtains the PSG tabulation.Obtaining subscription information is meant the ContentClassification.xml file that obtains among the PSG and resolves.Through specific channel parameter (this parameter of definition is that broadcast channel service identifiers (ServiceID) is 8000 in the practical application), sets up data channel and obtain related data, and, the Push Service that the data parsing that gets access to obtains is tabulated through the PSG data protocol.This flow process relates to the following correlation module in terminal: task manager, data management system, PSG manager, PSG receiver.The concrete mutual sequential chart of module is shown in 4.Processing procedure shown in Figure 4 is following:
Task manager is carried out " obtaining PSG " task, and transmits relevant parameter to data management system;
Data management system transmits " obtaining PSG " order and parameter to the PSG manager;
Whether the inspection of PSG manager exists the Push Service tabulation.If the Push Service tabulation exists, then do not do any operation, continue to carry out subsequent step; If the Push Service tabulation does not exist, then obtain the PSG receiver, and transmit relevant parameter to it;
The PSG receiver receives the Push Service tabulation, and upgrades local Push Service tabulation;
The PSG manager returns execution result to data management system;
Data management system returns execution result to task manager.
(2) upgrade classified information
For the renewal and the modification of class of fit information,, regularly upgrade PSG and subscribe to a type table according to the regulation of PSG update mechanism.The content of upgrading comprises classifying content and down sending content time: ContentClassification and ContentSchedule among the PSG.This flow process relates to the following correlation module in terminal: task manager, data management system, PSG manager.Particular flow sheet is shown in 5, and process is following:
According to PSG update time, regularly open ServiceID and be 8000 logical channel;
Receive and resolve the PSG data message of this passage;
Upgrade PSG according to the PSG data message and push classification chained list and the task of propelling movement chained list;
Close ServiceID after having upgraded and be 8000 logical channel.
(3) transmit classified information
To resolve and obtain the PSG content category message and send client to through interface and show.Interface function is shown in following table 1:
Table 1
Its program language is represented as follows:
(4) safeguard subscription information
Classified information after client is resolved through demonstration, the user chooses subscription through the personal like, and interpolation, modification or cancellation need the classifying content of reception.Client-side interface is handled the sort pass that the user subscribes to general layer.The terminal is through the content designator (ContentID) in the subscription classification of transmit, and generations needs the ContentID table that regularly receives, and the down sending content time list (ContentSchedule) that contrasts PSG writes down issuing the time of each ContentID task.Timer shifts to an earlier date the 30s initiating task according to the time of issuing that receives task and receives, and according to receive data conditions in real time or afterwards task deadline 30s shift received content.All ContentID task lists all can be real-time according to the interlock of client user's subscription information.All interpolations for subscription information, modification, cancellation and preservation are all managed by the PSG administration module.
As shown in Figure 6, the processing procedure of adding subscription information relates to following step:
Client is bound professional (bindService), obtains propelling movement tabulation (cmmbGetPushlist) and propelling movement tabulation (cmmbSetPushlist) is set.
The subscription information interface function is shown in following table 2:
Table 2
The program language of subscribing interface function is explained as follows:
(2) Data Receiving
Through subscription information and the content reception time of user to the PSG classification, the terminal is implemented in special time and effectively receives the purpose that customizes file.The content designator (ContentID) in the classification is subscribed to through the user in the terminal, and generation needs the regularly subscription table of reception, and the down sending content time list (ContentSchedule) of contrast PSG writes down issuing the time of each ContentID task.Timer shifts to an earlier date the reception of 30s initiating task according to the time of issuing of the task of reception; When receiving task, need resolve contents attribute file (ContentAttribute) file among the PSG, contrast ContentID whether with the subscription class table of preserving in ContentID corresponding.If if correspondence then receive is not corresponding abandoning.Simultaneously, the terminal need contrast among the PSG and according to receive data conditions in real time or afterwards task deadline 30s shift received content.When file shifted, the quantity of documents of PSG contents attribute file (ContentAttribute) file need be resolved in the terminal, judged whether to receive to reach 95% of complete quantity; If accomplish then (for example transfer to the CMMB file; File in the above-mentioned specified folder, this document folder is visible to the user, and can be by user capture) under; If do not accomplish then be placed on and wait for subsequent collection (that is, being placed in the above-mentioned temporary folder) under the existing file.
The terminal pushes professional relevant module with data has Configuration Manager (hereinafter being also referred to as parsing module), regularly pushes administration module, memory module and file data processing module.
As shown in Figure 7, when reception of data content categorizing selection and automatic reception, the reciprocal process between the terminal inner module is following:
In starting terminal, obtain the TS0 data, be stored in the database, the ServiceID in the database is filtered, open passage, download corresponding xml file, download after the completion, resolve through parsing module;
The subscription information of having resolved is stored in the database by memory module, to realize function corresponding, supplies client query and subscription;
The user can consult the subscription information that all can be subscribed at client end interface, to interested, subscribes to;
After memory module is stored corresponding subscription information, use timing mechanism customization downloading task, after timing has arrived, open data service channel, download the corresponding content that pushes;
The subscribed content of user to also downloading can go to subscribe to accordingly.(cancel) processing can be cancelled to the downloading task that is stored in the subscription queue in the terminal.
(3) optimize heavily receipts
PSG provides local subsequent collection content identification information, so that the terminal selectively reception needs the incomplete content fragment of polishing, thereby avoids poor efficiency integral body heavily to receive.The table of not accomplishing Data Receiving is preserved at the terminal; Heavy new round contrast ContentID carries out the bulk-breaking subsequent collection; Need resolve the quantity of documents of PSG contents attribute file (ContentAttribute) file simultaneously, then transfer under the CMMB file if the file behind the subsequent collection has arrived 95% (that is, above-mentioned predetermined ratio threshold value); Do not shift otherwise do not carry out file, deleted automatically by the terminal up to the deletion garbage files date.Repeat to receive for avoiding simultaneously, the terminal judges that through inspection ContentID certain pushes content and whether once received, in case received, follow-up all no longer the repetition receives, thereby reaches purpose of power saving.
(4) sign time zone
Through the sign of the time zone among the PSG, solve and stride the time zone time calibration problem, so that the reception data of terminal precise and high efficiency.6 bit field TimeZone labels at PSG down sending content timetable (ContentSchedule); Sign is used for informing the difference of region, terminal with the Greenwich time; So that the relation of the task time during down sending content is tabulated among local zone time and the PSG is handled according to this difference in the terminal, local zone time is added and subtracted processing to guarantee correct issuing time receiving data according to task.
(5) PSG administrative mechanism
Realize the data content categorizing selection reception of CMMB and a side of automatic reception, need configuration PSG management and update mechanism.The PSG management comprises that PSG upgrades and storage administration.It mainly is record and management PSG state that PSG upgrades; Be responsible for the current PSG state of inspection, and start more new technological process of PSG where necessary, obtain up-to-date PSG.The storage administration of PSG comprises the management of user's subscribed content, contentID management.Below be the specifying information of PSG data base administration table:
PSG pushes task chained list (ContentSchedule Table) shown in following table 3, is used for the Data Receiving task queue of recording user subscribed content.
| Field | Type | ?Default | Comment |
| id | Integer | ?0 | Major key increases progressively automatically |
| contentID | Integer | ?0 | ContentID |
| ucl_class_levelno | Integer | ?0 | Classifying and numbering |
| ServiceID | Integer | ?0 | Service identification |
| date | TEXT | ?0 | Date |
| time | TEXT | ?0 | Time |
| datetime | TEXT | ?0 | Time on date, be used for ordering |
| Duration | Integer | ?0 | Duty cycle |
Table 3
PSG pushes classification chained list (PushUCL Table) shown in following table 4, is used to store user's classified information.
| Field | Type | ?Default | Comment |
| id | integer | ?0 | Major key increases progressively automatically |
| contentID | integer | ?0 | ContentID |
| lang | TEXT | ?Null | Language |
| title | TEXT | ?0 | Title |
| mimeType | TEXT | ?0 | Data type |
| fileName | TEXT | ?0 | Filename |
| url | TEXT | ?0 | File path |
| selected | integer | ?1 | Whether subscribe to |
| keyword | TEXT | ?0 | Keyword |
| uclLevelNo | integer | ?0 | Classifying and numbering |
| ucl | TEXT | ?0 | The classification grade complete trails |
Table 4
PSG pushes and subscribes to chained list (PushUCLSub Table) shown in following table 5, is used for the management classification subscribing relationship.
| Field | Type | Default | Comment |
| uclLevelNo | integer | 0 | Major key, classifying and numbering |
| ucl | TEXT | 0 | The classification grade complete trails |
| selected | integer | 1 | Whether subscribe to |
| lifetime | TEXT | 0 | The deletion cycle |
Table 5
The update mechanism of PSG is upgraded TS0 information for starting shooting frequency locking (or full range search) afterwards, and terminal updating PSG also directly covers original PSG.For example; Automatically the execution number of times that upgrades can be set to 1 day maximum 7 times; Be behind every days 10,14,16,20 point, the 23:45 clock alignment and carried out for the first time the same day respectively upgrading PSG one time before the Data Receiving, just no longer repeat later to receive in case successfully upgraded the same day.
Particularly, PSG example file according to the present invention is following:
The example file of ContentClassification.xml is following:
In the above-mentioned example file; The ucl_class_levelno of " excellent film " this content is 110102; Be its one-level classification number for " 1 ", secondary classification number for " 1 ", reclassify number for " 01 ", level Four classification number are " 02 ", be under the jurisdiction of " excellent business/excellent TV/I record " this classifying content.
The example file of ContentSchedule.xml is following:
In the above-mentioned example file, the time zone value is " 010000 ", and the expression local zone time is early than (Coordinated Universal TimeUTC) the 8 hours time same time of the world (also can be described as universal time etc.), and promptly local zone time is Beijing time.ContentID is the content of " 09162 ", and its classifying content level alias is 120100, i.e. " excellent business/excellent information/political situation of the time important news ".This business tine is that 6000 passage issues through Service ID, and the time started is the 00:11:00 on January 11st, 2012, and broadcasting duration is 60 seconds.
In addition, the example file of ContentAttribute.xml is following:
In above-mentioned example file, ContentID is the content of " 09276 ", and title, keyword and summary all are " fashion is OUT_20120112_001 not ", and 12 files (comprising ContentAttribute.xml) are arranged in this content bag.
Though should be noted that the paragraph that has provided a lot of program languages before,, these only are concrete instances, involved in the present invention to each file be not limited thereto, this paper enumerates no longer one by one.
A kind of dispensing device of broadcast data is provided according to another embodiment of the present invention.
As shown in Figure 8, comprise according to the dispensing device of the broadcast data of the embodiment of the invention:
A kind of receiving system of broadcast data is provided according to another embodiment of the present invention.
As shown in Figure 9, comprise according to the receiving system of the broadcast data of the embodiment of the invention:
Subscribing module 92 is connected to first receiver module 91, is used for generating according to content category message the textural classification catalogue of content, and is used for according to the selected content of subscribing to of user's indication;
Regularly start module 93, be connected to first receiver module 91, be used to carry out timing, and under the situation of the time that issues of the content of subscribing to arrival, start second receiver module;
In correlation technique, when pushing the business datum amount when big, if make the terminal can the whole users of complete reception maybe interested data, the terminal must be opened for a long time, causes the power consumption at terminal to increase.
This device can further comprise:
The memory management module (not shown) for the content of each subscription, when the terminal begins to receive the business tine file of this content, is preserved the business tine file storage that receives in the temporary folder at terminal; The ratio that finishes receiving fully or when time of reception finishes, finish receiving at the business tine file of this content reaches the first predetermined ratio threshold values or the ratio that in receiving course, finishes receiving reaches under the situation of the second predetermined ratio threshold value; The business tine file that memory management module will receive is transferred to other specified folders; Wherein, The file of specified folder is visible to the user, and can be by user capture, and the first and second predetermined ratio threshold values can be provided with flexibly.
Wherein, the contents attribute information of each content is used to describe the quantity of this content corresponding service content file; And, second receiver module be further used for the business tine file of the content of each subscription receive finish after, the quantity of the business tine file in the quantity of the business tine file that receives, the contents attribute information corresponding with this content is compared; If the quantity of the business tine file that receives, confirms then that the business tine file of this content takes defeat less than the quantity of the business tine file in the contents attribute information; And, regularly start module and further be same as and control second receiver module according to the down sending content temporal information of this content the business tine file of this content is received again.
By means of above-mentioned sending and receiving device of the present invention, can reduce network overhead, reduce transinformation; Improve user experience, reduced the possibility that receives again because take defeat, obviously shorten the time that Data Receiving is carried out at the terminal; Thereby reduce the power consumption at terminal, help to improve the portability at terminal, prolong the useful life of terminal and battery; And can be under the situation of dormancy/holding state at the terminal, wake the reception of terminal carrying out service content file up.
In addition, the business tine file receiving course in the above embodiment of the present invention can carry out at the bottom of terminal system, and can accomplish on the backstage, therefore, can not influence the operate as normal at terminal, can further improve user experience.
In sum, by means of technique scheme of the present invention, make the terminal to subscribe to according to the classification that content category message is subscribed to needs; When the file of received content, can optionally receive the pairing business tine file of the content of having subscribed to, thereby reduce network overhead; Reduce transinformation, made the user can watch the service scripts that oneself is subscribed to, improved user experience; And because the subscription of content has been carried out at the terminal, so the data volume of actual reception can reduce; Thereby reduced the possibility that receives again because take defeat, can also obviously shorten the time that Data Receiving is carried out at the terminal, thereby reduce the power consumption at terminal; Help to improve the portability at terminal, prolong the useful life of terminal and battery.In addition, through optionally carrying out the heavily receipts of data, and carry out the transfer of file, can under the situation of not obvious increase accessing cost for data, improve the reliability that receives, and further improve user experience according to the reception ratio.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the transmission method of a broadcast data is characterized in that, comprising:
Network side is sent to the terminal with pushing service guide PSG information, wherein, comprises content category message, down sending content temporal information and contents attribute information in the said PSG information;
Under the situation of through said classified information content being subscribed at said terminal, the business tine file of the content that said terminal should be subscribed to according to the down sending content temporal information and the contents attribute message pick-up of the said content of subscribing to.
2. method according to claim 1 is characterized in that said content category message is used to describe the classification of each content, and is used to represent classifying content and other corresponding relation of classifying content level.
3. method according to claim 1 is characterized in that, below said down sending content temporal information is used for describing one of at least: the time started that each business tine file issues, broadcast service identification and local time zone information that duration, business are broadcast;
And said down sending content temporal information also is used for representing the corresponding relation of said each content identification of business tine file number and classification stage alias.
4. method according to claim 1 is characterized in that, the contents attribute information of each content is used to describe the quantity of this content corresponding service content file.
5. method according to claim 4 is characterized in that, further comprises:
For the content of each subscription, the business tine file of this content receive finish after, the quantity of the business tine file in the contents attribute information that the quantity of the business tine file that receives is corresponding with this content of said terminal compares;
If the quantity of the business tine file that receives is less than the quantity of the business tine file in the contents attribute information; Then said terminal confirms that the business tine file of this content takes defeat, and receives again according to the down sending content temporal information of this content in the said PSG information business tine file to this content.
6. method according to claim 1 is characterized in that, the content category message in the said PSG information, down sending content temporal information issue through predetermined policy and by predetermined dedicated channel.
7. method according to claim 1 is characterized in that, for each content, the contents attribute information of this content is with the business tine file of this content, is issued to said terminal according to the down sending content temporal information of this content.
8. method according to claim 1 is characterized in that, for the content of each subscription, when the terminal begins to receive the business tine file of this content, the business tine file storage that receives is preserved in the temporary folder at said terminal; The ratio that the business tine file of this content finishes receiving reach the predetermined ratio threshold value or situation about finishing receiving fully under; The business tine file that said terminal will receive is transferred to other specified folders; Wherein, The file of said specified folder is visible to the user, and can be by user capture.
9. method according to claim 1 is characterized in that, further comprises:
Network side upgrades PSG information with predetermined time interval, and the PSG information after will upgrading is sent to said terminal;
Under the PSG information and the PSG information condition of different after the renewal of said terminal preservation, said terminal utilizes the PSG information that receives to replace the PSG information of script preservation.
10. the dispensing device of a broadcast data is characterized in that, comprising:
First broadcast module is used for according to predetermined policy and by predetermined dedicated channel broadcasted content classified information and down sending content temporal information;
Second broadcast module is used for the business tine file according to each content of down sending content temporal information transmission, and wherein, for each content, said second broadcast module is broadcasted the contents attribute information of this content with the business tine file of this content.
11. the receiving system of a broadcast data is characterized in that, comprising:
First receiver module is used for receiving content category message and down sending content temporal information according to predetermined policy broadcasting through predetermined dedicated channel;
Subscribing module is used for generating according to said content category message the textural classification catalogue of content, and is used for according to the selected content of subscribing to of user's indication;
Regularly start module, be used to carry out timing, and under the situation of the down sending content time of the said content of subscribing to arrival, start second receiver module;
Said second receiver module is used for starting under the control of module in said timing, receives the business tine file of each content and the contents attribute information of broadcasting with this business tine.
12. receiving system according to claim 11 is characterized in that, further comprises:
Memory management module for the content of each subscription, when the terminal begins to receive the business tine file of this content, is preserved the business tine file storage that receives in the temporary folder at said terminal; The ratio that the business tine file of this content finishes receiving reach the predetermined ratio threshold value or situation about finishing receiving fully under; The business tine file that said memory management module will receive is transferred to other specified folders; Wherein, The file of said specified folder is visible to the user, and can be by user capture.
13. receiving system according to claim 11 is characterized in that, the contents attribute information of each content is used to describe the quantity of this content corresponding service content file;
And, said second receiver module be further used for the business tine file of the content of each subscription receive finish after, the quantity of the business tine file in the quantity of the business tine file that receives, the contents attribute information corresponding with this content is compared; If the quantity of the business tine file that receives, confirms then that the business tine file of this content takes defeat less than the quantity of the business tine file in the contents attribute information;
And said timing starts module and further is same as and controls said second receiver module according to the down sending content temporal information of this content the business tine file of this content is received again.
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