CN101207533A - Distributed IPTV system - Google Patents
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- CN101207533A CN101207533A CNA2006101674558A CN200610167455A CN101207533A CN 101207533 A CN101207533 A CN 101207533A CN A2006101674558 A CNA2006101674558 A CN A2006101674558A CN 200610167455 A CN200610167455 A CN 200610167455A CN 101207533 A CN101207533 A CN 101207533A
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Abstract
The invention discloses a distributed IPTV system. The system comprises a first-hierarchy node device, a plurality of second-hierarchy node devices and a plurality of third- hierarchy node devices. The first- hierarchy node device provides global operation support as well as global service application management for the whole system. The second- hierarchy node devices are connected with the first- hierarchy node device through a backbone network, receive and obtain the global service information from the first- hierarchy node device and report customer use information to the first- hierarchy r node device. The third- hierarchy node devices are arranged below each second- hierarchy node device, and the third- hierarchy node devices are connected with the second- hierarchy node devices through a backbone network and are connected with a set top box through an access network. Using the method of the invention can reduce the load pressure of the IPTV system backbone network, and improve the response speed of the user request.
Description
Technical field
The present invention relates to a kind of IPTV (Internet Protocol Television) system, especially relate to and a kind ofly can save the distributed IPTV system that backbone bandwidth reduces the backbone network load pressure.
Background technology
Along with the development of broadband network, various business based on wideband transmit also present developing state fast, especially the digitized processing of miscellaneous service.Continuing to optimize of particularly TV programme digitlization, audio frequency and video compression algorithm makes that transmission becomes possibility based on broadband network for TV programme, audio frequency and video, and the IPTV system also arises at the historic moment.The living in of people becomes and become increasingly abundant colorfully cybertimes, and various demands also constantly increase, and the requirement of service quality is also improved constantly.As: game on line, visual telephone, note, surfing on the net etc., but people play the timing that each TV station has no longer been satisfied in the requirement of TV programme, but need watch various programs at any time, television picture quality, visual telephone image quality and voice quality are required also to improve constantly.This has higher requirement to traditional IPTV systematic networking method and service implementation method, and traditional systematic networking method and service implementation method generally all are that net distribution is partly carried out distributed design, and getting this only is to have solved subproblem.For the increase of class of business, traffic carrying capacity and number of users, backbone network is born the pressure of load also can be increasing, and the service rate that the user enjoys also can be affected.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of distributed IPTV system, and this system can not only save backbone bandwidth and reduce the backbone network load pressure, can also improve system to user's request responding speed.
For solving the problems of the technologies described above, distributed IPTV system of the present invention comprises one one level node device, for whole system provides overall operation support and the management of overall service application; A plurality of two level node devices link to each other with a described level node device by backbone network, receive the business information of obtaining overall situation issue from a described level node device, and use information to a described level node device report of user; Comprise a plurality of three level node devices under each two level node device, link to each other with described two level node devices by backbone network, and be connected with set-top box by Access Network, be used for inlet as the set-top box device connecting system, by obtain the information that Business Processing needs from described two level node devices, directly for the user provides IPTV service, and to the described second level node device feedback processing information.
As a kind of optimized technical scheme, in a level node device described in the above-mentioned network-building method and two level node devices, Management Layer and service application layer are set;
In described Management Layer, provide with lower module:
The plateform system administration module is used for whole system equipment is managed, the relevant information of each network element module in the generation system;
CP/SP and user management module are used for CP/SP and user profile are managed, and handle the CAMEL-Subscription-Information of CP/SP, and user's subscription and unsubscription information is revised CP/SP and user profile etc.;
The Certificate Authority module is used for authentication is carried out in user's miscellaneous service request, avoids disabled user's connecting system platform, uses illegal professional;
The set-top box administration module is used for all set-top box information that managing I PTV platform is served;
Digital rights management module is used for the streaming medium content of issuing on the IPTV platform is encrypted, and avoids streaming medium content stolen;
In described service application layer, provide with lower module:
Content processing module is used for the media content that is submitted to the IPTV platform is handled;
Content managing module is used for media content is managed;
The content distribution module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system;
The electronic programming single module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box;
Broadcast module is used for the Streaming Media broadcast request of set-top box module is handled;
The point broadcasting module is used for the streaming media on demand request of set-top box module is handled;
As further optimized technical scheme again, in a level node described in the above-mentioned network-building method and two level node Management Layers, also provide with lower module:
Statistical analysis module is used for the customer consumption custom, and the information such as pouplarity of each CP/SP content are added up, and generate satisfactory form content;
Authentication and accounting interface management module is used for externally providing charging authentication interface function, provides different interface adaptive at different external function modules;
Charge and pay and settlement module, be used to finish the clearing of customer service usage charges, and withhold accordingly.
As further optimized technical scheme again, in a level node described in the above-mentioned network-building method and two level node traffic application layers, also provide with lower module:
The streaming media service module is used to the set-top box module that the streaming medium content service is provided;
Value-added service application management module is used for the various value-added services that managing I PTV system provides.
As further optimized technical scheme, in a level node described in the above-mentioned network-building method and two level node traffic application layers, also provide with lower module:
The communication service module, being used for system provides visual telephone service to the user;
The interactive game module, being used for system provides the interactive game business to the user;
Information service module, being used for system provides point-to-point short message service to the user.
As further optimized technical scheme again, in three level node devices described in the above-mentioned network-building method, provide with lower module:
The content distribution module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system;
The electronic programming single module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box;
Broadcast module is used for the Streaming Media broadcast request of set-top box module is handled;
The point broadcasting module is used for the streaming media on demand request of set-top box module is handled;
The streaming media service module is used to the set-top box module that the streaming medium content service is provided.
As further optimized technical scheme, in three level node devices described in the above-mentioned network-building method, also provide with lower module:
Value-added service application management module is used for the various value-added services that managing I PTV system provides;
The communication service module, being used for system provides visual telephone service to the user;
The interactive game module, being used for system provides the interactive game business to the user;
Information service module, being used for system provides point-to-point short message service to the user.
Because the structure that the present invention has adopted a level node and two level nodes to comprise Management Layer and service application layer is carried out networking, make the second level node bear the business and the function of the first level node under many circumstances, bandwidth as a level node of backbone network can obtain saving greatly like this, has also alleviated the load pressure of backbone network; One level node and two level nodes all have subscriber management function and Certificate Authority function, so only when not having user profile, two level nodes just need ask a level node, take the bandwidth of backbone network, so also reduced the load pressure of backbone network, when if two level nodes have user profile, the user can meet with a response from two level nodes soon, thereby has also improved user's request responding speed; Equally, one, two, three levels all have the content distribution function, when the needed content of user in the time on three nearest level nodes of user, can extracting, do not need to take a level node and two level meshed network bandwidth, if three level nodes can not extract required content and just extract to two level nodes,, extract to a level node request again if two level nodes still do not have, can reduce the backbone network load pressure so too, improve user's request responding speed.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the deployment architecture figure of distributed IPTV system of the present invention;
Fig. 2 is a level node two level node composition diagrams;
Fig. 3 is three level node composition diagrams;
Fig. 4 is program request under the distributed deployment/live broadcast service flow process;
Fig. 5 is a Communications service operation flow under the distributed deployment;
Fig. 6 is an interactive game operation flow under the distributed deployment;
Fig. 7 is the professional flow process of information service under the distributed deployment.
Embodiment
Fig. 1 is the deployment architecture figure of distributed IPTV system of the present invention, and whole system is linked together by backbone network, is connected with set-top box device by Access Network.System is divided into three layers, and a level node only has one, comprises business support layer and service application layer.Also can be described as business support module and business application module, these two modules are positioned at a level node, are the Centroids of entire I PTV system, and operation support functions such as authenticating and charging, statistical analysis, user management are provided for whole system.And service application function such as Content Management, content distribution, electric program menu, streaming media service.Two level nodes adopt core backbone to be connected with a level node, pass through core backbone, two level nodes obtain the media content of overall situation issue from a level node, obtain CP/SP information and user profile etc., two level nodes are also to a level node report of user service recorder, authenticating and charging request etc.Under the situation that business information possesses, two level nodes can be independently in institute's compass of competency the user IPTV is provided business, do not need participating in of a level node.One level node is consistent with two level node structures.The module that wherein comprises as shown in Figure 2.One level node and two level nodes comprise as lower module:
1 authentication and accounting interface management module: this module externally provides charging authentication interface function, provides different interface adaptive at different external function modules.
2CP/SP and user management module: this module is used for CP/SP and user profile are managed, and handles the CAMEL-Subscription-Information of CP/SP, and user's subscription and unsubscription information is revised CP/SP and user profile etc.
3 Certificate Authority modules: this module is carried out authentication to user's miscellaneous service request, avoids disabled user's connecting system platform, uses illegal professional.
4 charge pays and settlement module: this module is used to finish the clearing of customer service usage charges, and withholds accordingly.
5 statistical analysis modules: this module is used for the customer consumption custom, and the information such as pouplarity of each CP/SP content are added up, and generate satisfactory form content.
6 set-top box administration modules: this module is used for all set-top box information that managing I PTV platform is served, for example: information such as user name, password, authority.
7 digital rights management module: this module is used for the streaming medium content of issuing on the IPTV platform is encrypted, and avoids streaming medium content stolen.
8 plateform system administration modules: this module is used for whole system equipment is managed, the relevant information of each network element module in the generation system, and for example: the CPU of network element device takies situation, internal memory utilizes situation etc.
9 content processing module: this module is used for the media content that is submitted to the IPTV platform is handled, and carries out coding of specified format etc. as: media formats inspection, to media content.
10 content managing modules: this module is used for media content is managed, and comprising: search, deletion, copy etc.
11 broadcasting modules: this module is used for the streaming media on demand request of set-top box module is handled.
12 broadcast module: this module is used for the Streaming Media broadcast request of set-top box module is handled.
13 streaming media service modules: this module is used to the set-top box module that the streaming medium content service is provided.
14 content distribution modules: this module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system.
15 value-added service application management modules: this module is used for the various value-added services that managing I PTV system provides, for example: the enabling of miscellaneous service, stop, issue etc.
16 communication service modules: this module is used for system provides visual telephone service to the user.
17 interactive game modules: this module is used for system provides the interactive game business to the user.
18 information service module: this module is used for system provides point-to-point short message service to the user.
19 electronic programming single modules: this module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box.
Three level nodes are the external direct service nodes of system, also are the inlets of set-top box device connecting system.Set-top box is connected with three level nodes by Access Network.The module of three level nodes is formed as shown in Figure 3, mainly comprises as lower module:
1 broadcasting module: this module is used for the streaming media on demand request of set-top box module is handled.
2 broadcast module: this module is used for the Streaming Media broadcast request of set-top box module is handled.
3 streaming media service modules: this module is used to the set-top box module that the streaming medium content service is provided.
4 content distribution modules: this module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system.
5 value-added service application management modules: this module is used for the various value-added services that managing I PTV system provides, for example: the enabling of miscellaneous service, stop, issue etc.
6 Communications service modules: this module is used for system provides visual telephone service to the user.
7 interactive game modules: this module is used for system provides the interactive game business to the user.
8 information service module: this module is used for system provides point-to-point short message service to the user.
9 electronic programming single modules: this module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box.
Based on above-mentioned distributed networking, provide operation flow commonly used below.But this distributed IPTV system is not limited to provide following several business.The user sends service request by three level nodes to two level nodes;
Two level nodes carry out authentication to user's request content,
If two level nodes can authentication, then return authenticating result to three level nodes, if three level nodes possess the business tine of user's request, then provide professional to user side by three level nodes; If three level nodes do not possess the business tine of user request, then obtain business to two level nodes, two level nodes are this business tine not also, then obtains business to a level node;
If two level nodes can not authentication, then send authentication request to a level node, return authenticating result by a level node to two level nodes and then to three level nodes, if can authentication, three level nodes provide professional according to authenticating result to user's request, if can not authentication, then return the unsuccessful information of authentication to user side by three level nodes.
Below respectively to the detailed explanation of making comparisons of the operation flow of several business.
1. program request/live broadcast service flow process:
Flow chart as shown in Figure 4.
The process step explanation:
401 steps: set-top box device connects by Access Network and three level nodes, request electronic program list information;
402 steps: three level nodes are to set-top box return electron programme information;
403 steps: set-top box selects a program channel request to play;
404 steps: three level nodes send a request message to two level nodes, set-top box users is carried out Authentication Authorization handle;
405 steps: if two level nodes this user's Authentication Authorization information not then sends request to a level node, otherwise to step 408;
406 steps: a level node returns to two level nodes with set-top box users Authentication Authorization result;
407 steps: two level nodes return result to three level nodes;
408 steps: if the user is the legal authorization user, whether three level node inspection this locality have corresponding media content, if there is not corresponding media content, then ask for media content to two node layers.Media content can be the on-demand media file herein, also can be live medium code stream;
409 steps: if two level nodes do not have corresponding media content yet, then two level nodes continue to obtain to a level node; Otherwise forward step 412 to;
410 steps: a level node returns two level node media content information;
411 steps: two level nodes continue to return media content information to three level nodes;
412 steps; Three level nodes return media description information to set-top box device;
413 steps: set-top box and three level nodes are finished the media play process mutually alternately.
2. Communications service operation flow:
Flow chart is shown in accompanying drawing five:
The process step explanation:
501 steps: the user carries out the visual telephone dialing by set-top box;
502 steps: three level nodes send to two level nodes with user's video dialtone request, and two level nodes are to the calling and called subscription authentication, if two level nodes can authentication, then forward step 505 to, otherwise continue follow-up flow process;
503 steps: two level nodes send authentication request to a level node;
504 steps: a level node returns authenticating result to two level nodes;
505 steps: two level nodes return the authentication process result to three level nodes;
506 steps: if authentication is unsuccessful, then three level nodes return to set-top box, otherwise do not send this message;
507 steps: three level node gateways judge that the callee is set-top box or external video terminal, if then step 510 beginning of set-top box, if the external video terminal, the external video terminal address is obtained in the then direct and Communication Gateway communication by three level nodes;
508 steps: three level nodes are to set-top box returning to external video end address;
509 steps: set-top box is directly set up video session to outside video terminal;
510 steps: whether three level nodes are judged called is the interior set-top box of three level node service ranges, if then forward step 514 to; Otherwise continuation subsequent step;
511 steps:, then continue to obtain set-top box information to a level node if also do not have called set-top box in the two level range of nodes; Otherwise forward step 513 to;
512 steps: a level node returns called set-top box information to two level nodes;
513 steps: two level nodes return called set-top box information to three level nodes;
514 steps: three level nodes return called set-top box information to set-top box;
515 steps: caller set-top box and called set-top box are set up video calling.
3. interactive game operation flow:
Flow chart is shown in accompanying drawing six:
The process step explanation:
601 steps: set-top box sends the game service request to three level nodes;
602 steps: three level nodes forward user's request to two level nodes, and two level nodes carry out authentication to the user, forward step 605 to, otherwise continue subsequent step;
603 steps: two level nodes are transmitted the customer service request to a level node;
604 steps: a level node returns the authentication process result;
605 steps: two level nodes return the authentication process result to three level nodes;
606 steps: three level node Resume Mission gateway address and corresponding insertion authority sign indicating number;
607 steps: set-top box is closed with net game and is connected the beginning game service.
4. the professional flow process of information service:
Flow chart is shown in accompanying drawing seven:
The process step explanation:
701 steps: set-top box is initiated information sending request to three level nodes;
702 steps: three level nodes are transmitted user's request to two level nodes, if two level nodes can authentication, then forward step 705 to, otherwise continue subsequent step;
703 steps: two level nodes send authentication request to a level node;
704 steps: a level node returns Authentication Response to two level nodes;
705 steps: two level nodes return Authentication Response to three level nodes;
706 steps:, then return failure information if unsuccessful to customer service request authentication; Otherwise, do not need this message;
707 steps: three level nodes are transmitted to info gateway with user's information sending request, and info gateway judges whether external communication terminal or set-top box; If the external communication terminal then sends to info gateway with information sending request; Otherwise forward step 711 to;
708 steps: info gateway is transmitted to the external communication terminal with information, and receives acknowledgement information;
709 steps: info gateway returns acknowledgement information to three level nodes;
710 steps: three level nodes are transmitted to set-top box with acknowledgement information;
711 steps: three level nodes are transmitted user profile to two level nodes and are sent request;
712 steps: if the position and the authentication of the clear and definite called set-top box of two level nodes energy then forward step 714 to, otherwise continue follow-up flow process;
713 steps: a level node returns the called set-top box information of two level nodes;
714 steps: two level nodes return called set-top box information to three level nodes;
715 steps: three level nodes are transmitted to info gateway with information sending request, and carry called set-top box information;
716 steps: info gateway sends information to set-top box;
717 steps: set-top box is returned acknowledgement information and is given info gateway;
718 steps: info gateway returns acknowledgement information to three level nodes;
719 steps: three level nodes return acknowledgement information to the caller set-top box.
Claims (7)
1. a distributed IPTV system comprises IPTV platform, set-top box and bearer network module, and described set-top box is dispersed in the subscriber household, and described bearer network module is characterized in that by drawing in network and backbone network is formed described IPTV platform comprises:
One one level node device is for whole system provides overall operation support and the management of overall service application;
A plurality of two level node devices link to each other with a level node device by described backbone network, receive the business information of obtaining overall situation issue from a described level node device, and use information to a described level node device report of user;
Under the described two level node devices, also comprise a plurality of three level node devices, link to each other with described two level node devices by described backbone network, and be connected with described set-top box by described Access Network, be used for inlet as the set-top box device connecting system, by obtain the information that Business Processing needs from described two level node devices, directly for the user provides IPTV service, and to the described second level node device feedback processing information.
2. a kind of distributed IPTV system as claimed in claim 1 is characterized in that:
All comprise Management Layer and service application layer in a described level node device and the two level node devices;
Comprise in the described Management Layer with lower module:
The plateform system administration module is used for whole system equipment is managed, the relevant information of each network element module in the generation system;
CP/SP and user management module are used for CP/SP and user profile are managed, and handle the CAMEL-Subscription-Information of CP/SP, and user's subscription and unsubscription information is revised CP/SP and user profile etc.;
The Certificate Authority module is used for authentication is carried out in user's miscellaneous service request, avoids disabled user's connecting system platform, uses illegal professional;
The set-top box administration module is used for all set-top box information that managing I PTV platform is served;
Digital rights management module is used for the streaming medium content of issuing on the IPTV platform is encrypted, and avoids streaming medium content stolen;
Comprise in the described service application layer with lower module:
Content processing module is used for the media content that is submitted to the IPTV platform is handled;
Content managing module is used for media content is managed;
The content distribution module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system;
The electronic programming single module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box;
Broadcast module is used for the Streaming Media broadcast request of set-top box module is handled;
The point broadcasting module is used for the streaming media on demand request of set-top box module is handled;
3. a kind of distributed IPTV system as claimed in claim 2 is characterized in that:
A described level node and two level node Management Layers also comprise with lower module:
Statistical analysis module is used for the customer consumption custom, and the information such as pouplarity of each CP/SP content are added up, and generate satisfactory form content;
Authentication and accounting interface management module is used for externally providing charging authentication interface function, provides different interface adaptive at different external function modules;
Charge and pay and settlement module, be used to finish the clearing of customer service usage charges, and withhold accordingly.
4. a kind of distributed IPTV system as claimed in claim 3 is characterized in that:
A described level node and two level node traffic application layers also comprise with lower module:
The streaming media service module is used to the set-top box module that the streaming medium content service is provided;
Value-added service application management module is used for the various value-added services that managing I PTV system provides.
5. a kind of distributed IPTV system as claimed in claim 4 is characterized in that:
A described level node and two level node traffic application layers also comprise with lower module:
The communication service module, being used for system provides visual telephone service to the user;
The interactive game module, being used for system provides the interactive game business to the user;
Information service module, being used for system provides point-to-point short message service to the user.
6. as the described any distributed IPTV system of claim 2～5, it is characterized in that:
Comprise with lower module in the described three level node devices:
The content distribution module is used for and the bearer network interface, and media content rationally is distributed in just in the IPTV system;
The electronic programming single module is used for set-top box device, makes the user can carry out the selection of media content and miscellaneous service by set-top box;
Broadcast module is used for the Streaming Media broadcast request of set-top box module is handled;
The point broadcasting module is used for the streaming media on demand request of set-top box module is handled;
The streaming media service module is used to the set-top box module that the streaming medium content service is provided;
7. as the described any distributed IPTV system of claim 3～5, it is characterized in that:
Also comprise with lower module in the described three level node devices:
Value-added service application management module is used for the various value-added services that managing I PTV system provides;
The communication service module, being used for system provides visual telephone service to the user;
The interactive game module, being used for system provides the interactive game business to the user;
Information service module, being used for system provides point-to-point short message service to the user.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471436A (en) * | 2018-02-07 | 2018-08-31 | 深圳市亿联智能有限公司 | It can effectively reduce cost and put forward the efficient IPTV system based on block chain |
| CN108958570A (en) * | 2017-05-22 | 2018-12-07 | 中兴通讯股份有限公司 | Method, apparatus, computer equipment and the computer-readable medium of screen management |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958570A (en) * | 2017-05-22 | 2018-12-07 | 中兴通讯股份有限公司 | Method, apparatus, computer equipment and the computer-readable medium of screen management |
| CN108958570B (en) * | 2017-05-22 | 2023-09-26 | 中兴通讯股份有限公司 | Screen management method, device, computer equipment and computer readable medium |
| CN108471436A (en) * | 2018-02-07 | 2018-08-31 | 深圳市亿联智能有限公司 | It can effectively reduce cost and put forward the efficient IPTV system based on block chain |
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| CN100571178C (en) | 2009-12-16 |
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