CN101420688A - System and method for sharing content of mobile multimedia broadcast - Google Patents
System and method for sharing content of mobile multimedia broadcast Download PDFInfo
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- CN101420688A CN101420688A CNA2007101815847A CN200710181584A CN101420688A CN 101420688 A CN101420688 A CN 101420688A CN A2007101815847 A CNA2007101815847 A CN A2007101815847A CN 200710181584 A CN200710181584 A CN 200710181584A CN 101420688 A CN101420688 A CN 101420688A
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Abstract
The invention discloses a system used for sharing mobile multimedia broadcast contents and a method thereof; wherein, the system comprises a service management platform which complies with the technical specification of application layer of the mobile broadcast service and respectively generates keys corresponding to the services when the multimedia broadcast service is distributed, carries out the synchronization of program stream key and corresponding key, sends respective program stream key to respectively corresponding terminal after synchronization, and returns the program stream keys to a multimedia broadcast platform; the system also comprises a multimedia broadcast platform which respectively sends the program stream key to each service management platform and sends the encapsulated program streams to all terminals respectively; the mobile terminal gains the key corresponding to the service when ordering the multimedia broadcast service corresponding to respective service management platform, receives respective program stream keys sent by each platform after synchronization at the same time, sends program streams to the received multimedia broadcast platform, and decodes and plays the program stream according to the program stream key and corresponding service key. The system and the method realize the objective that a plurality of service management platforms share the content of one multimedia broadcast.
Description
Technical field
The invention belongs to the system and method for a kind of shared content of mobile multimedia broadcast in the wireless communication field, specifically, relate in the wireless communication field system and method based on a kind of shared content of mobile multimedia broadcast under the OMA BCAST multimedia broadcasting technical standard.
Background technology
In the wireless data communication system,, realize that based on the mobile network multi-media broadcasting service becomes possibility along with the increase of wireless network bandwidth.3GPP (3rd Generation Partnership Project, third generation partner program) and 2GPP2 organize the multi-media broadcasting service technical standard of finishing in succession based on 3GPP system network and 3GPP2 system network, and based on OMA BCAST (Open MobileAlliance Mobile Broadcast Services, the Mobile Broadcast Services application layer) application layer technical standard, comprise: MBMS (multimedia broadcast multi-broadcasting business) is based on the multimedia broadcasting standard of 3GPP system, BCMCS (Broadcast/Multicast Services, broadcasting/packet service) is based on the multimedia broadcasting standard of 3GPP2 system; OMA BCAST be designed to can compatible two kinds of networks the application layer standard.
For realizing that service construction purpose MBMS, BCMCS, the OMA BCAST that can run have the service security framework of a cover self system, can realize fairly perfect service security protection, and the realization business can be runed.
But there is a problem in the existing OMA BCAST multimedia broadcasting technical standard, can not realizes that a plurality of service operation persons share a cover multimedia broadcast contents.Each service operation person need build a cover service management and content is broadcasted system one to one, if realize the shared cover contents broadcasting system of many cover business management systems, under the condition of not revising existing terminal software, then can not realize normal multi-media broadcasting service.
Summary of the invention
Technical problem solved by the invention is to provide a kind of system and method for shared content of mobile multimedia broadcast, to solve under, can't realize that many cover business management systems share the problems of a cover multimedia broadcast contents based on OMA BCAST multimedia broadcasting technical standard.
In order to address the above problem, the invention provides a kind of method of shared content of mobile multimedia broadcast, in the multimedia system that is applied at least to form, it is characterized in that, may further comprise the steps by two groups of Business Management Platform and portable terminal and a multimedia broadcasting platform:
Generate professional corresponding service key when (1) described each Business Management Platform is all followed each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer respectively;
(2) described multimedia broadcasting platform sends to described each Business Management Platform respectively with program current cipher key; Carry out the synchronous of program current cipher key and corresponding service key between described each Business Management Platform;
When (3) described each portable terminal is ordered the multi-media broadcasting service of corresponding service management platform separately, obtain this business corresponding service key; Described each Business Management Platform respectively will be synchronously after separately program current cipher key send to corresponding mobile terminal separately, return to multimedia broadcasting platform simultaneously;
(4) described multimedia broadcasting platform sends to each portable terminal with encapsulated program streams, and described each portable terminal is decoded to program stream according to program current cipher key and corresponding service key and play.
Method of the present invention, wherein, further comprise in the described step (1): described each Business Management Platform generates professional corresponding service key and business key label respectively when all following each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer.
Wherein, further comprise in the described step (2): carry out the synchronous of program current cipher key sign, master salt key, key derivation rate between described each Business Management Platform.
Wherein, when each portable terminal described in the step (3) is ordered the multi-media broadcasting service of corresponding service management platform separately, obtain this business corresponding service key, further comprise: obtain this business corresponding service key, business key label, key derivation rate;
Described each Business Management Platform respectively will be synchronously after separately program current cipher key send to corresponding mobile terminal separately, return to multimedia broadcasting platform simultaneously, further comprise: described each Business Management Platform respectively will be synchronously after separately program current cipher key, program current cipher key sign and master salt key adopt the MIKEY mode to encrypt then to send to corresponding mobile terminal separately by the broadcast type carrying, simultaneously will be synchronously after separately program current cipher key sign, master salt key, key derivation rate return to multimedia broadcasting platform.
Method of the present invention, wherein, multimedia broadcasting platform sends to each portable terminal with encapsulated program streams described in the step (4), further comprises: described multimedia broadcasting platform adopts Security Real Time Protocol that encapsulated program streams is sent to each portable terminal by the broadcast type carrying.
In order to address the above problem, the present invention also provides a kind of system of shared content of mobile multimedia broadcast, it is characterized in that, comprising: at least by two groups of Business Management Platform and a portable terminal and a multimedia broadcasting platform, wherein,
Described Business Management Platform generates professional corresponding service key respectively when being used to follow each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer; And carry out between the Business Management Platform program current cipher key and corresponding service key synchronously; And separately program current cipher key sends to corresponding mobile terminal separately after will be synchronously, returns to multimedia broadcasting platform simultaneously;
Described multimedia broadcasting platform is used for program current cipher key is sent to described each Business Management Platform respectively, and encapsulated program streams is sent to each portable terminal;
Described portable terminal when being used to order the multi-media broadcasting service of corresponding service management platform separately, obtains this business corresponding service key; Receive simultaneously that each Business Management Platform sends synchronously after separately program current cipher key; And, this program stream decoding is play according to program current cipher key and corresponding service key to the program stream that the multimedia broadcasting platform that receives sends.
System of the present invention, wherein, described Business Management Platform generates professional corresponding service key and business key label respectively when being further used for following each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer; And with other Business Management Platform carry out program current cipher key sign, master salt key, key derivation rate synchronously, and separately program current cipher key, program current cipher key sign and master salt key adopts the MIKEY mode to encrypt then to send to corresponding mobile terminal separately by the broadcast type carrying after respectively will be synchronously, simultaneously will be synchronously after separately program current cipher key sign, master salt key, key derivation rate return to multimedia broadcasting platform.
Wherein, described portable terminal when being further used for ordering the multi-media broadcasting service of corresponding service management platform separately, obtains this business corresponding service key, business key label, keyderivation rate.
System of the present invention, wherein, described multimedia broadcasting platform is further used for adopting Security Real Time Protocol that encapsulated program streams is sent to each portable terminal by the broadcast type carrying.
Adopt the present invention to realize under, realize that many cover business management systems share cover multimedia broadcast contents based on OMA BCAST multimedia broadcasting technical standard.
Description of drawings
Fig. 1 is the system construction drawing of a kind of shared content of mobile multimedia broadcast described in the embodiment of the invention;
Fig. 2 is the method flow diagram of a kind of shared content of mobile multimedia broadcast described in the embodiment of the invention.
Embodiment
The present invention provides a kind of system and method for shared content of mobile multimedia broadcast here, to solve under based on OMA BCAST multimedia broadcasting technical standard, can't realize that many cover business management systems share the problems of a cover multimedia broadcast contents.Below embodiment is described in detail, but not as a limitation of the invention.
In system as shown in Figure 1, comprise Business Management Platform A101, Business Management Platform B102, multimedia broadcasting platform 103, wireless network carrying 104, portable terminal 105.
Business Management Platform A and B realize multi-media broadcasting service management, user management based on OMA BCAST standard technique, functions such as secret key safety system, and difference only is service operation personnel differences; Business Management Platform only provides two in this example, can have a plurality of.Setting Business Management Platform A in the specific implementation is main platform, when carrying out information synchronization between Business Management Platform, based on the information of Business Management Platform A.
Multimedia broadcasting platform 103, be responsible for multimedia broadcast contents is carried out Security Real Time Protocol (Secure Real-time Transport Protocol, SRTP) encapsulation and generation ciphered program stream secrete key, and the medium stream information of SRTP protocol encapsulation sent to wireless network carrying 104, so that send to portable terminal 105.
Wireless network carrying 104 comprises interactive carrying and broadcast type carrying.
Portable terminal 105 obtains the business cipher key of encrypting alternately by interactive mode carrying and Business Management Platform; Portable terminal 105 obtains the program current cipher key encrypted and the program stream information of encryption by broadcast type carrying, and according to program current cipher key and corresponding service key to program stream decoding play.With multi-media broadcasting service client functionality and the corresponding secret key safety framework of realizing OMABCAST standard technique regulation.
Based on system shown in Figure 1, wherein portable terminal can have a plurality ofly, supposes that here portable terminal 1 belongs to the user of Business Management Platform A, and portable terminal 2 belongs to the user of Business Management Platform B, as shown in Figure 2, for realizing the shared method flow diagram of carrying out of multimedia broadcast contents; At first Business Management Platform A, Business Management Platform B all need follow OMA BCAST technical specification and generate business cipher key, business key label when multi-media broadcasting service is issued; The follow-up following step of employing that needs:
Adopt the described system and method for the embodiment of the invention to realize under, realize that many cover business management systems share cover multimedia broadcast contents based on OMA BCAST multimedia broadcasting technical standard.
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 of ordinary skill in the art 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 (9)
1, a kind of method of shared content of mobile multimedia broadcast in the multimedia system that is applied at least to be made up of two groups of Business Management Platform and portable terminal and a multimedia broadcasting platform, is characterized in that, may further comprise the steps:
Generate professional corresponding service key when (1) described each Business Management Platform is all followed each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer respectively;
(2) described multimedia broadcasting platform sends to described each Business Management Platform respectively with program current cipher key; Carry out the synchronous of program current cipher key and corresponding service key between described each Business Management Platform;
When (3) described each portable terminal is ordered the multi-media broadcasting service of corresponding service management platform separately, obtain this business corresponding service key; Described each Business Management Platform respectively will be synchronously after separately program current cipher key send to corresponding mobile terminal separately, return to multimedia broadcasting platform simultaneously;
(4) described multimedia broadcasting platform sends to each portable terminal with encapsulated program streams, and described each portable terminal is decoded to program stream according to program current cipher key and corresponding service key and play.
2, the method for claim 1, it is characterized in that described step further comprises in (1): described each Business Management Platform generates professional corresponding service key and business key label respectively when all following each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer.
3, method as claimed in claim 2 is characterized in that, described step further comprises in (2): carry out the synchronous of program current cipher key sign, master salt key, keyderivation rate between described each Business Management Platform.
4, method as claimed in claim 3, it is characterized in that, when each portable terminal described in the step (3) is ordered the multi-media broadcasting service of corresponding service management platform separately, obtain this business corresponding service key, further comprise: obtain this business corresponding service key, business key label, keyderivation rate;
Described each Business Management Platform respectively will be synchronously after separately program current cipher key send to corresponding mobile terminal separately, return to multimedia broadcasting platform simultaneously, further comprise: described each Business Management Platform respectively will be synchronously after separately program current cipher key, program current cipher key sign and master salt key adopt the MIKEY mode to encrypt then to send to corresponding mobile terminal separately by the broadcast type carrying, simultaneously will be synchronously after separately program current cipher key sign, master salt key, key derivation rate return to multimedia broadcasting platform.
5, the method for claim 1, it is characterized in that, multimedia broadcasting platform sends to each portable terminal with encapsulated program streams described in the step (4), further comprises: described multimedia broadcasting platform adopts Security Real Time Protocol that encapsulated program streams is sent to each portable terminal by the broadcast type carrying.
6, a kind of system of shared content of mobile multimedia broadcast is characterized in that, comprising: at least by two groups of Business Management Platform and a portable terminal and a multimedia broadcasting platform, wherein,
Described Business Management Platform generates professional corresponding service key respectively when being used to follow each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer; And carry out between the Business Management Platform program current cipher key and corresponding service key synchronously; And separately program current cipher key sends to corresponding mobile terminal separately after will be synchronously, returns to multimedia broadcasting platform simultaneously;
Described multimedia broadcasting platform is used for program current cipher key is sent to described each Business Management Platform respectively, and encapsulated program streams is sent to each portable terminal;
Described portable terminal when being used to order the multi-media broadcasting service of corresponding service management platform separately, obtains this business corresponding service key; Receive simultaneously that each Business Management Platform sends synchronously after separately program current cipher key; And, this program stream decoding is play according to program current cipher key and corresponding service key to the program stream that the multimedia broadcasting platform that receives sends.
7, system as claimed in claim 6, it is characterized in that, described Business Management Platform generates professional corresponding service key and business key label respectively when being further used for following each comfortable multi-media broadcasting service issue of technical specification of Mobile Broadcast Services application layer; And with other Business Management Platform carry out program current cipher key sign, master salt key, key derivation rate synchronously, and separately program current cipher key, program current cipher key sign and master salt key adopts the MIKEY mode to encrypt then to send to corresponding mobile terminal separately by the broadcast type carrying after respectively will be synchronously, simultaneously will be synchronously after separately program current cipher key sign, master salt key, key derivation rate return to multimedia broadcasting platform.
8, system as claimed in claim 7, it is characterized in that, described portable terminal when being further used for ordering the multi-media broadcasting service of corresponding service management platform separately, obtains this business corresponding service key, business key label, key derivation rate.
9, system as claimed in claim 6 is characterized in that, described multimedia broadcasting platform is further used for adopting Security Real Time Protocol that encapsulated program streams is sent to each portable terminal by the broadcast type carrying.
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| CN2007101815847A CN101420688B (en) | 2007-10-23 | 2007-10-23 | System and method for sharing content of mobile multimedia broadcast |
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| CN2007101815847A CN101420688B (en) | 2007-10-23 | 2007-10-23 | System and method for sharing content of mobile multimedia broadcast |
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| CN101420688A true CN101420688A (en) | 2009-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426922A (en) * | 2013-08-21 | 2015-03-18 | 中兴通讯股份有限公司 | Method, device and system for resource content distribution processing |
| CN104703029A (en) * | 2015-02-06 | 2015-06-10 | 深圳市三峰光电科技有限公司 | Digital television program stream sharing method, device, terminal and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1758593A (en) * | 2004-10-10 | 2006-04-12 | 大唐移动通信设备有限公司 | Service key updating method of multimedium playing service |
| CN100463515C (en) * | 2005-11-23 | 2009-02-18 | 中国移动通信集团公司 | Data protection method of multimedia broadcast multicast service |
| CN100531380C (en) * | 2005-12-28 | 2009-08-19 | 中兴通讯股份有限公司 | Mobile terminal adapting method of streaming media |
| EP1826931B1 (en) * | 2006-02-27 | 2018-12-19 | Samsung Electronics Co., Ltd. | Method and system for protecting broadcast service/content in a mobile broadcast system, and method for generating short term key message therefor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426922A (en) * | 2013-08-21 | 2015-03-18 | 中兴通讯股份有限公司 | Method, device and system for resource content distribution processing |
| CN104703029A (en) * | 2015-02-06 | 2015-06-10 | 深圳市三峰光电科技有限公司 | Digital television program stream sharing method, device, terminal and system |
| CN104703029B (en) * | 2015-02-06 | 2017-11-24 | 深圳市三峰光电科技有限公司 | A kind of digital television program flow point enjoys method, apparatus, terminal and system |
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