CN101257449A - System, method as well as medium positioning server of medium dynamic jointing - Google Patents
System, method as well as medium positioning server of medium dynamic jointing Download PDFInfo
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- CN101257449A CN101257449A CNA2008100897666A CN200810089766A CN101257449A CN 101257449 A CN101257449 A CN 101257449A CN A2008100897666 A CNA2008100897666 A CN A2008100897666A CN 200810089766 A CN200810089766 A CN 200810089766A CN 101257449 A CN101257449 A CN 101257449A
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Abstract
A media dynamic tandem system and method, and a media positioning server based on the content distribution are disclosed. The method includes the steps that: the media positioning server, for receiving a tandem route request of the media content in a media resource server of the local user terminal, retrieves a remote media resource server having the media content according to the relation of the media content and the media resource server and sends the tandem route request to the remote media resource server having the media content; the system receives a tandem route response of the media content returned from the remote media resource server and sends the tandem route response to the local media resource server; a media tandem communication link is established between the local media resource server and the remote media resource server having the media content. According to the invention, interconnection and intercommunication of the media resource servers among different net nods in a large media service system are achieved.
Description
Technical field
The present invention relates to the multimedia service field, relate in particular to system, method and the positioning server of medium of the dynamic tandem of a kind of medium.
Background technology
The raising of the network bandwidth and NGN (next generation network) development of internet technology provides possibility for the value-added services businesses of carrying out based on media content on the NGN network.Stream media technology provide a kind of in network the mode of media contents such as transmission of video, audio frequency, picture, therefore at multi-media service system, particularly obtained in IPTV (Web TV) multimedia service using widely.Simultaneously,, in the NGN network, carry out multimedia service, become a kind of trend gradually such as multimedia services such as Web TV, mobile flow medium, media content download along with the NGN development of internet technology.
In the current technology, be applied to the multimedia junction platform of packet multimedia system H.323 and call out in the technical scheme of route have following problem: calling terminal and called end all exist gatekeeper and tandem equipment, the call route method step more complicated of tandem equipment, medium code stream between the different gatekeepers still need be by the tandem device forwards simultaneously, efficient is lower, in the stream media technology field, can directly carry out media-junction between the streaming media server, and current technical scheme is unsuitable for the multi-media service system based on Streaming Media, therefore needs a kind of technical scheme that can directly carry out the dynamic tandem of medium.
Summary of the invention
Technical problem to be solved by this invention provides system, method and the positioning server of medium of the dynamic tandem of a kind of medium, be implemented in the large-scale media business system interconnecting of Media Resource Server between the heterogeneous networks node, media content can disperse to be stored in the Media Resource Server of different network edge nodes, makes the user who is in the heterogeneous networks fringe node can visit the media content in other network edge node.
In order to address the above problem, the invention provides the system of the dynamic tandem of a kind of medium, this system is the system of the dynamic tandem of medium of content-based distribution, comprises, Media Resource Server,
Also comprise positioning server of medium, be used to receive the tandem route requests of media content of the Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Receive the tandem route response of the media content that the Media Resource Server of this far-end returns, and this tandem route response is sent to local Media Resource Server; Make local Media Resource Server and exist the Media Resource Server of the far-end of media content to set up the media-junction communication link.
Further, said system also can comprise, the tandem communication end point information of carrying the Media Resource Server of this far-end in the tandem route response of the media content that the Media Resource Server of the far-end that has media content that described positioning server of medium receives returns;
Local Media Resource Server is set up the media-junction communication link according to the tandem communication end point information of the Media Resource Server of far-end in the tandem route response that receives with the Media Resource Server of the far-end that has media content.
Further, said system also can comprise, the Media Resource Server of described this locality is used for directly giving the local user terminal that inserts that media content service is provided; Send the tandem route requests of media content to positioning server of medium, and the tandem route response of the media content that returns of the Media Resource Server of the far-end transmitted of receiving media location-server; According to tandem communication end point information in this tandem route response, set up the media-junction communication link with the Media Resource Server of far-end;
The described Media Resource Server that has the far-end of media content is used for the tandem route requests that the receiving media location-server sends, and distributes a tandem communication end point, and returns the tandem route response of media content to positioning server of medium.
Further, said system can comprise that also the Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
The incidence relation of described positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
The present invention also provides a kind of positioning server of medium,
Described positioning server of medium, be used to receive the tandem route requests of media content of the Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Receive the tandem route response of the media content that the Media Resource Server of this far-end returns, and this tandem route response is sent to local Media Resource Server; Make local Media Resource Server and exist the Media Resource Server of the far-end of media content to set up the media-junction communication link.
Further, above-mentioned positioning server of medium also can comprise, the tandem communication end point information of carrying the Media Resource Server of this far-end in the tandem route response of the media content that the Media Resource Server of the far-end that has media content that described positioning server of medium receives returns;
Local Media Resource Server is set up the media-junction communication link according to the tandem communication end point information of the Media Resource Server of far-end in the tandem route response that receives with the Media Resource Server of the far-end that has media content.
Further, above-mentioned positioning server of medium can comprise that also the Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
The incidence relation of described positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
The present invention also provides the method for the dynamic tandem of a kind of medium, and this method is the method for the dynamic tandem of medium of content-based distribution, may further comprise the steps,
After a, positioning server of medium receive the tandem route requests of media content of Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Wherein said positioning server of medium is used to set up the incidence relation of media content and Media Resource Server;
B, exist the Media Resource Server of the far-end of media content to receive the tandem route requests of positioning server of medium after, return the tandem route response of media content to positioning server of medium;
After c, positioning server of medium gave the tandem route response of media content of the Media Resource Server that local Media Resource Server returns described far-end, the local Media Resource Server and the Media Resource Server of this far-end were set up the media-junction communication link.
Further, said method also can comprise, also comprise among the described step a,
User terminal sends the service request of media content to the Media Resource Server of this locality, the local local media content that distributes of Media Resource Server retrieval, if there is the media content in the media content service request of user terminal in the local Media Resource Server, then Ben Di Media Resource Server directly returns the media content service request responding to user terminal, and the host-host protocol of the media content by standard provides media content service to user terminal, and user terminal begins media content service;
If there is not the media content of user request service in the local Media Resource Server, then Ben Di Media Resource Server sends the tandem route requests of media content to positioning server of medium.
Further, said method can comprise that also the form of described service request comprises download, broadcast and real-time recording;
It between all Media Resource Servers and the positioning server of medium full-duplex communication link.
Further, said method also can comprise, carries the tandem communication end point information of the Media Resource Server of described far-end in the tandem route response of described media content.
Further, said method also can comprise, also comprise among the described step c,
When the Media Resource Server of this locality tandem communication end point information according to the Media Resource Server of far-end, when setting up the media-junction communication link, and send the service request of media content of the media content of described user terminal requests with the Media Resource Server of far-end;
The Media Resource Server of far-end returns the code stream of media content to the Media Resource Server of this locality;
After local Media Resource Server receives the code stream of the media content that the Media Resource Server of far-end sends, return the code stream of media content to user terminal, user terminal begins media content service.
Further, said method can comprise that also the Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
Among the described step a, the incidence relation of positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
The present invention also provides a kind of positioning server of medium, be applied to comprise the communication network of first area and second area, wherein, described first area is provided with one first Media Resource Server at least, second area is provided with one second Media Resource Server at least, it is characterized in that:
Described positioning server of medium, be used to set up the corresponding relation of media content and first, second Media Resource Server, receive the tandem route requests of the media content of first area first Media Resource Server, in the corresponding relation of media content and first, second Media Resource Server, retrieve second Media Resource Server that has media content, and send the tandem route requests to second Media Resource Server that has media content; Receive the tandem route response of the media content that this second Media Resource Server returns, and this tandem route response is sent to first Media Resource Server; Make first Media Resource Server and second the Media Resource Server that has media content set up the media-junction communication link.
Compared with prior art, use the present invention, be implemented in the large-scale media business system interconnecting of Media Resource Server between the heterogeneous networks node, media content can disperse to be stored in the Media Resource Server of different network edge nodes, make the user who is in the heterogeneous networks fringe node can visit the media content in other network edge node, has networking flexibility simultaneously, the characteristics that extensibility is strong.
Description of drawings
Fig. 1 is the flow chart of method of the dynamic tandem of medium of content-based distribution in the specific embodiment of the invention;
Fig. 2 is the Organization Chart of system of the dynamic tandem of medium of content-based distribution in the specific embodiment of the invention;
The flow chart that Fig. 3 realizes for the dynamic tandem of medium in the instantiation of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The invention provides a kind of system of the dynamic tandem of medium of content-based distribution, comprise positioning server of medium, Media Resource Server;
Positioning server of medium, be used to set up the contingency table of media content and Media Resource Server, the tandem route requests of the media content of the Media Resource Server of reception user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that there is media content in all, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Receive the tandem route response of the media content that the Media Resource Server of this far-end returns, and this tandem route response is sent to local Media Resource Server;
Wherein, the tandem route requests of described media content comprises the sign of described media content.
The Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal.
Wherein, the incidence relation of positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
Wherein, the tandem communication end point information of carrying the Media Resource Server of this far-end in the tandem route response of the media content that returns of the described Media Resource Server that has a far-end of media content.
Media Resource Server comprises the Media Resource Server of user terminal this locality, is used for directly giving the local user terminal that inserts that media content service is provided; Send the tandem route requests of media content to positioning server of medium, and the tandem route response of the media content that returns of the Media Resource Server of the far-end transmitted of receiving media location-server; According to tandem communication end point information in this tandem route response, set up the media-junction communication link with the Media Resource Server of far-end, carry out the transmission of the code stream of media content;
Media Resource Server also comprises the Media Resource Server of the far-end that has media content, be used for the tandem route requests that the receiving media location-server sends, distribute a tandem communication end point, and return the tandem route response of media content to positioning server of medium.
Wherein, user terminal, be used for sending the service request of media content to the Media Resource Server of this locality, the form of service request includes but not limited to download, broadcast and real-time recording etc., also is used for receiving by the media content host-host protocol of standard the code stream of the media content of local Media Resource Server transmission simultaneously.
As shown in Figure 1, the present invention also provides a kind of method of the dynamic tandem of medium of content-based distribution, may further comprise the steps:
Step 110, local Media Resource Server are retrieved the local media content that distributes earlier:
Whether there is the media content in the media content service request of user terminal in step 120, the local Media Resource Server, if then execution in step 130; Otherwise, execution in step 140;
According to the form of media services, the host-host protocol of media content comprises but is not limited to RTP (RTP).
If there is not the media content of user request service in the local Media Resource Server, then Ben Di Media Resource Server sends the tandem route requests of media content to positioning server of medium.
After step 150, positioning server of medium receive the tandem route requests of local Media Resource Server, in the contingency table of media content and Media Resource Server, retrieve the distant end media Resource Server that there is media content in all, and send the tandem route requests to the Media Resource Server of the far-end that has media content;
It between all Media Resource Servers and the positioning server of medium full-duplex communication link.
Set up the contingency table of media content and Media Resource Server in the positioning server of medium, this contingency table has been described the distribution corresponding relation of media content and Media Resource Server.
The Media Resource Server of step 180, this locality is according to the tandem communication end point information of the Media Resource Server of far-end, set up the media-junction communication link with the Media Resource Server of far-end, send the service request of media content of the media content of described user terminal requests simultaneously;
The tandem communication end point information of the Media Resource Server of the far-end in the tandem route response that local Media Resource Server returns according to positioning server of medium, set up the tandem communication link with the Media Resource Server of far-end, set up after the communication link success, local Media Resource Server sends the service request of media content to the Media Resource Server of far-end.
The Media Resource Server of step 190, far-end returns the code stream of media content with the media content host-host protocol of standard to the Media Resource Server of this locality;
After step 195, local Media Resource Server received the code stream of the media content that the Media Resource Server of far-end sends, the media content host-host protocol by standard returned the code stream of media content to user terminal, and user terminal begins media content service.
The invention will be further described below in conjunction with instantiation.
As shown in Figure 2, a kind of system of the dynamic tandem of medium of content-based distribution is provided, comprise that positioning server of medium (is designated MLS among the figure, Media Location Server), two Media Resource Servers (are designated MRSA among the figure, MRSB, MRS is Media Resource Server), user terminal (being designated UE among the figure, User Equipment).
As shown in Figure 3, the access Media Resource Server of user terminal UE is MRSA, user terminal asks the media content MC that serves to be distributed among the Media Resource Server MRSB, realizes that then the method for Media Resource Server MRSA and the dynamic tandem of MRSB may further comprise the steps:
Step 200: set up the distribution relation of media content and Media Resource Server in positioning server of medium MLS, implementation includes but not limited to relational database, LDAP (Light Directory Access Protocol) server etc.;
Step 201: the Media Resource Server MRSA of subscriber's local, and Media Resource Server MRSB is all and set up a full-duplex communication link between the positioning server of medium MLS;
Step 202: the Media Resource Server MRSA of user terminal UE by subscriber's local sends the service request MCSR of media content MC, and the form of service request MCSR includes but not limited to that content is downloaded, play in real time and content is recorded etc.;
The local media content that distributes of Media Resource Server MRSA retrieval earlier if there is media content MC among user's the media content service request MCSR among the Media Resource Server MRSA, then changes step 203; Otherwise change step 205;
Step 203:MRSA returns media content service response MCSA to user terminal;
Step 204:MRSA provides media content service by the media content host-host protocol of standard to user terminal, and according to the form difference of media services, the host-host protocol of media content MC comprises but is not limited to RTP (RTP); Process ends;
Step 205: do not have the media content MC in user's the media content service MCSR request among the Media Resource Server MRSA, Media Resource Server MRSA sends the tandem route requests TRR about media content MC to positioning server of medium MLS;
Step 206: positioning server of medium MLS receives after the tandem query requests TRR of Media Resource Server MRSA, retrieve the distant end media Resource Server MRSB that has media content MC in the contingency table of media content and Media Resource Server, positioning server of medium is transmitted tandem route requests TRR to the distant end media Resource Server MRSB that has media content;
Step 207: Media Resource Server MRSB receives tandem route requests TRR, distribute a local tandem communication end point, and return tandem route response TRA for positioning server of medium MLS, carry the tandem communication end point information of Media Resource Server MRSB among the TRA;
Step 208: the Media Resource Server MRSA that positioning server of medium MLS inserts to the user transmits the tandem route response TRA of distant end media Resource Server MRSB, the tandem communication end point information of carrying Media Resource Server MRSB among the TRA;
Step 209: the MRSB tandem communication end point information among the tandem route response TRA that Media Resource Server MRSA returns according to positioning server of medium MLS, set up the tandem communication link to Media Resource Server MRSB;
Step 210: set up after the communication link success, MRSA is to the media content service request MCSR of MRSB media content MC;
Step 211: the Media Resource Server MRSA that Media Resource Server MRSB inserts to the user returns media content service response MCSA;
Step 212: Media Resource Server MRSB returns the RTP code stream of media content with the media content host-host protocol of standard to MRSA;
Step 213: Media Resource Server MRSA receives after the RTP code stream of Media Resource Server MRSB, and the RTP code stream is returned to user terminal UE, and media content service begins.
More than, for a preferred embodiment of the present invention, in another embodiment of the present invention, system of the present invention comprises:
First area, described first area are provided with one first Media Resource Server at least;
Second area, described second area are provided with one second Media Resource Server at least;
User terminal, and
Positioning server of medium, in order to set up the corresponding relation of media content and first, second Media Resource Server, and when user terminal during in the first area, receive the tandem route requests of the media content of user terminal first area first Media Resource Server, in the corresponding relation of media content and first, second Media Resource Server, retrieve second Media Resource Server that has media content, and send the tandem route requests to second Media Resource Server that has media content; Receive the tandem route response of the media content that this second Media Resource Server returns, and this tandem route response is sent to first Media Resource Server; Make first Media Resource Server and second the Media Resource Server that has media content set up the media-junction communication link.
In the present embodiment, when user terminal during in the first area, described first Media Resource Server is the Media Resource Server of this locality of user terminal, i.e. nearby principle; When user terminal during at second area, the local media Resource Server that described first Media Resource Server is a user terminal;
Certainly, in another preferred embodiment, user terminal is when signatory, the local media Resource Server of fixing user terminal, after being the Media Resource Server of first Media Resource Server for this locality of the signatory first area of user terminal, even to second area, still send media-junction route requests to the first Media Resource Server earlier.
Described system comprises:
First area, described first area are provided with one first Media Resource Server at least;
Second area, described second area are provided with one second Media Resource Server at least;
User terminal, and
Positioning server of medium, in order to set up the corresponding relation of media content and first, second Media Resource Server, as user during at second area, receive the tandem route requests of the media content of user terminal first area first Media Resource Server, in the corresponding relation of media content and first, second Media Resource Server, retrieve second Media Resource Server that has media content, and send the tandem route requests to second Media Resource Server that has media content; Receive the tandem route response of the media content that this second Media Resource Server returns, and this tandem route response is sent to first Media Resource Server; Make first Media Resource Server and second the Media Resource Server that has media content set up the media-junction communication link.
In above two embodiment, described corresponding relation can be explained by modes such as contingency table or hash correspondences.
Compared with prior art, positioning server of medium only participates in the media-junction routing procedure in the method provided by the invention, and the forwarding of medium code stream does not need the participation of positioning server of medium.
In view of the diversity of user terminal in the NGN network, the mode of different accessing user terminal to network may be inequality, can make following expansion to the present invention, to increase its practicality:
Can increase user access networks between user terminal and Media Resource Server closes, user access networks close the message conversion finish between user terminal and the Media Resource Server and adaptive, and the proxy user terminal sends the service request of media content and the response of receiving media Resource Server equipment to the Media Resource Server of this locality.
Described Media Resource Server all uses fixing tandem signaling port, when starting, Media Resource Server initiatively reports the tandem signaling port of oneself, in the process of carrying out tandem, soft switch can not need to send the tandem request to the distant end media Resource Server, returns the tandem response directly for local Media Resource Server.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (16)
1, the system of the dynamic tandem of a kind of medium, this system is the system of the dynamic tandem of medium of content-based distribution, comprises, Media Resource Server is characterized in that,
Also comprise positioning server of medium, be used to receive the tandem route requests of media content of the Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Receive the tandem route response of the media content that the Media Resource Server of this far-end returns, and this tandem route response is sent to local Media Resource Server; Make local Media Resource Server and exist the Media Resource Server of the far-end of media content to set up the media-junction communication link.
2, the system as claimed in claim 1 is characterized in that,
The tandem communication end point information of carrying the Media Resource Server of this far-end in the tandem route response of the media content that the Media Resource Server of the far-end that has media content that described positioning server of medium receives returns;
Local Media Resource Server is set up the media-junction communication link according to the tandem communication end point information of the Media Resource Server of far-end in the tandem route response that receives with the Media Resource Server of the far-end that has media content.
3, the system as claimed in claim 1 is characterized in that,
The Media Resource Server of described this locality is used for directly giving the local user terminal that inserts that media content service is provided; Send the tandem route requests of media content to positioning server of medium, and the tandem route response of the media content that returns of the Media Resource Server of the far-end transmitted of receiving media location-server; According to tandem communication end point information in this tandem route response, set up the media-junction communication link with the Media Resource Server of far-end;
The described Media Resource Server that has the far-end of media content is used for the tandem route requests that the receiving media location-server sends, and distributes a tandem communication end point, and returns the tandem route response of media content to positioning server of medium.
4, as claim 1,2 or 3 described systems, it is characterized in that,
The Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
The incidence relation of described positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
5, a kind of positioning server of medium is characterized in that,
Described positioning server of medium, be used to receive the tandem route requests of media content of the Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Receive the tandem route response of the media content that the Media Resource Server of this far-end returns, and this tandem route response is sent to local Media Resource Server; Make local Media Resource Server and exist the Media Resource Server of the far-end of media content to set up the media-junction communication link.
6, positioning server of medium as claimed in claim 5 is characterized in that,
The tandem communication end point information of carrying the Media Resource Server of this far-end in the tandem route response of the media content that the Media Resource Server of the far-end that has media content that described positioning server of medium receives returns;
Local Media Resource Server is set up the media-junction communication link according to the tandem communication end point information of the Media Resource Server of far-end in the tandem route response that receives with the Media Resource Server of the far-end that has media content.
7, as claim 5 or 6 described positioning server of medium, it is characterized in that,
The Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
The incidence relation of described positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
8, the method for the dynamic tandem of a kind of medium, this method is the method for the dynamic tandem of medium of content-based distribution, it is characterized in that, may further comprise the steps,
After a, positioning server of medium receive the tandem route requests of media content of Media Resource Server of user terminal this locality, incidence relation by media content and Media Resource Server retrieves the distant end media Resource Server that has media content, and sends the tandem route requests to the Media Resource Server of the far-end that has media content; Wherein said positioning server of medium is used to set up the incidence relation of media content and Media Resource Server;
B, exist the Media Resource Server of the far-end of media content to receive the tandem route requests of positioning server of medium after, return the tandem route response of media content to positioning server of medium;
After c, positioning server of medium gave the tandem route response of media content of the Media Resource Server that local Media Resource Server returns described far-end, the local Media Resource Server and the Media Resource Server of this far-end were set up the media-junction communication link.
9, method as claimed in claim 8 is characterized in that,
Also comprise among the described step a,
User terminal sends the service request of media content to the Media Resource Server of this locality, the local local media content that distributes of Media Resource Server retrieval, if there is the media content in the media content service request of user terminal in the local Media Resource Server, then Ben Di Media Resource Server directly returns the media content service request responding to user terminal, and the host-host protocol of the media content by standard provides media content service to user terminal, and user terminal begins media content service;
If there is not the media content of user request service in the local Media Resource Server, then Ben Di Media Resource Server sends the tandem route requests of media content to positioning server of medium.
10, method as claimed in claim 9 is characterized in that,
The form of described service request comprises download, broadcast and real-time recording;
It between all Media Resource Servers and the positioning server of medium full-duplex communication link.
11, method as claimed in claim 8 or 9 is characterized in that,
Carry the tandem communication end point information of the Media Resource Server of described far-end in the tandem route response of described media content.
12, method as claimed in claim 11 is characterized in that,
Also comprise among the described step c,
When the Media Resource Server of this locality tandem communication end point information according to the Media Resource Server of far-end, when setting up the media-junction communication link, and send the service request of media content of the media content of described user terminal requests with the Media Resource Server of far-end;
The Media Resource Server of far-end returns the code stream of media content to the Media Resource Server of this locality;
After local Media Resource Server receives the code stream of the media content that the Media Resource Server of far-end sends, return the code stream of media content to user terminal, user terminal begins media content service.
13, as claim 8,9 or 12 described methods, it is characterized in that,
The Media Resource Server of described user terminal this locality is meant, the Media Resource Server of user terminal registered place; Perhaps be meant the Media Resource Server nearest with user terminal;
Among the described step a, the incidence relation of positioning server of medium by media content and Media Resource Server retrieves all and exists the distant end media Resource Server of media content to be meant, positioning server of medium retrieves all distant end media Resource Servers that have media content in the contingency table of media content and Media Resource Server.
14, a kind of positioning server of medium is applied to comprise the communication network of first area and second area, and wherein, described first area is provided with one first Media Resource Server at least, and second area is provided with one second Media Resource Server at least, it is characterized in that:
Described positioning server of medium, be used to set up the corresponding relation of media content and first, second Media Resource Server, receive the tandem route requests of the media content of first area first Media Resource Server, in the corresponding relation of media content and first, second Media Resource Server, retrieve second Media Resource Server that has media content, and send the tandem route requests to second Media Resource Server that has media content; Receive the tandem route response of the media content that this second Media Resource Server returns, and this tandem route response is sent to first Media Resource Server; Make first Media Resource Server and second the Media Resource Server that has media content set up the media-junction communication link.
15, a kind of system that uses the dynamic tandem of medium of positioning server of medium as claimed in claim 14.
16, a kind of method of using the dynamic tandem of positioning server of medium realization medium as claimed in claim 14.
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| CN2008100897666A CN101257449B (en) | 2008-04-10 | 2008-04-10 | System, method of medium dynamic jointing |
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| CN2008100897666A CN101257449B (en) | 2008-04-10 | 2008-04-10 | System, method of medium dynamic jointing |
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| CN101257449B CN101257449B (en) | 2011-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101964794A (en) * | 2010-09-30 | 2011-02-02 | 中兴通讯股份有限公司 | Media tandem method and system for multimedia service system |
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| CN101026545B (en) * | 2006-02-21 | 2010-05-12 | 联想(北京)有限公司 | Real-time multimedia transmitting system and method |
| CN100583820C (en) * | 2006-09-11 | 2010-01-20 | 思华科技（上海）有限公司 | Routing system and method of content distribution network |
| CN101119475B (en) * | 2007-08-21 | 2010-06-02 | 中兴通讯股份有限公司 | System and method for implementing video on-demand request redirection in IPTV system |
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| CN101964794A (en) * | 2010-09-30 | 2011-02-02 | 中兴通讯股份有限公司 | Media tandem method and system for multimedia service system |
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