CN102143380A - Content provision control method, content provision control device and content provision control system for content transmission network - Google Patents

Content provision control method, content provision control device and content provision control system for content transmission network Download PDF

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Publication number
CN102143380A
CN102143380A CN 201010619588 CN201010619588A CN102143380A CN 102143380 A CN102143380 A CN 102143380A CN 201010619588 CN201010619588 CN 201010619588 CN 201010619588 A CN201010619588 A CN 201010619588A CN 102143380 A CN102143380 A CN 102143380A
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CN
China
Prior art keywords
content
type
access
request message
provides
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CN 201010619588
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Chinese (zh)
Inventor
赵志洪
陈寒冰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN 201010619588 priority Critical patent/CN102143380A/en
Priority to PCT/CN2011/075357 priority patent/WO2011144176A1/en
Publication of CN102143380A publication Critical patent/CN102143380A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests

Abstract

The invention provides a content provision control method, a content provision control device and a content provision control system for a content delivery network CDN, which ensure that the CDN can identify the content request type and execute flow control according to the content request type. After the access request is received, the access request type is judged through a content provision server in the CDN, and the access request type is carried when the request request is sent to a content access locating server in the CDN, so that the content access locating server in the CDN executes content provision control according to the access request, and therefore different types of requests are processed differently, the user experience is improved, and the user satisfaction is increased.

Description

The control method that the content distribution network content provides, device and system
Technical field
The present invention relates to areas of information technology, relate in particular to control method, device and system that the content of a kind of content distribution network CDN provides.
Background technology
Following video traffic development trend is digitlization, IPization, and high Qinghua, interactive, personalization.In NGOD (Next Generation On Demand, VOD system of future generation), medium control is separated with media delivery, service separates CDN (Content Delivery Network, content distribution network) with plug-flow, and open standard interface is provided.
In existing NGOD framework, the plug-flow server S treamingServer of terminaloriented and towards the storage and the CDN decoupling zero of buffer memory, adopt standardized C2 interface between the two, can not obtain content from CDN by the C2 interface when content is hit in plug-flow server this locality.For CDN, when flow transships, can ask to transship Flow Control to C2.But in the prior art, CDN is when implementing Flow Control, can not treat with a certain discrimination the C2 request, for example can not distinguish this C2 request is new conversation request of initiating or the conversation request that has existed, cause CDN can not carry out Flow Control selectively, might cause the part online user to watch video breaks, have influence on user's experience.
Summary of the invention
Control method, device and system that the embodiment of the invention provides a kind of content distribution network CDN content to provide make CDN can discern the type of content requests, and carry out Flow Control according to the type of content requests.
The control method that the embodiment of the invention provides the content of a kind of content distribution network CDN to provide comprises:
Access to content location-server received content among the CDN provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Access to content location-server among the described CDN provides the type of request message to carry out the control that content provides according to described content.
The embodiment of the invention provides content distribution network CDN that the control method of content is provided, and comprising:
Content providing server among the described CDN receives access request, judges the type of described access request;
Access to content location-server in described CDN sends a request message, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
The embodiment of the invention also provides the access to content location-server, comprising:
Receiving element, being used for received content provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Control unit, the type that is used for carrying according to the request message that receiving element receives is carried out the control that content provides.
The embodiment of the invention also provides a kind of content providing server, comprising:
Receive judging unit: be used to receive access request, and judge the type of described access request;
Transmitting element: be used for sending a request message to the access to content location-server of CDN, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
The embodiment of the invention also provides a kind of content that system is provided, and comprises access to content location-server and content providing server, wherein:
Described access to content location-server, the content that is used to receive described content providing server provides request message, and provides the type of carrying in the request message to carry out the control that content provides according to described content;
Described content providing server, the type that is used to receive described access request and judges described access request, send a request message to described access to content location-server, described request message carries identification information, and described identification information is used to identify the type of described access request.
Control method, device and system that the content of a kind of content distribution network CDN that the embodiment of the invention provides provides, after receiving access request, judge the type of access request by the content providing server among the CDN, and when sending a request message, carries the access to content location-server in CDN the type of this request, make the access to content location-server among the CDN carry out the control that content provides according to the type of described access request, can realize different processing is carried out in dissimilar requests, improve user experience, and promote user satisfaction.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of VOD system NGOD2.0 of future generation in the prior art;
The control method schematic flow sheet that Fig. 2 provides for the content of a kind of content distribution network CDN of the embodiment of the invention;
Fig. 3 is the control method schematic flow sheet that content is provided of a kind of content distribution network CDN of the embodiment of the invention;
Fig. 4 is first structural representation of a kind of access to content location-server of the embodiment of the invention;
Fig. 5 is second structural representation of a kind of access to content location-server of the embodiment of the invention;
Fig. 6 is first structural representation of a kind of content providing server of the embodiment of the invention;
Fig. 7 is second structural representation of a kind of content providing server of the embodiment of the invention;
Fig. 8 provides the structural representation of system for a kind of content of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is the Organization Chart of NGOD2.0, wherein, and the plug-flow server S treaming Server of terminaloriented and the interface of opening towards the CDN employing of storage and buffer memory, convenient the 3rd side's Streaming Server butt joint.Described CDN comprises content library server Content Library, content caching server CacheGateway and content library positioning service (CLS, Content Library Service), and wherein, Content Library is jumbo content stores warehouse; Cache Gateway is the gateway of buffer memory focus content; CLS is the access to content location-server, externally Streaming Server need visit the CDN network when obtaining content, at first send LocateRequest and ask CLS, CLS can be according to the position of Streaming Server, and the load of Cache Gateway and the deposit situation of content in network that will visit select best Cache Gateway content delivery services to be provided for above-mentioned Streaming Server.
Adopt standardized C2 interface between CDN and the plug-flow server S treamingServer, when plug-flow server S treamingServer does not hit content in this locality, be that plug-flow server S treamingServer self does not preserve set-top box (STB, Set Top Box) request content the time, can be by the C2 interface, (be used to indicate a fragment obtaining content, obtain content from CDN by sending LocateRequest message or ContentTransfer message and carrying byteRange as 1000～1500byte) mode.Concerning CDN, perception is the new session of initiating of a terminal less than certain LocateRequest or ContentTransfer request correspondence like this, and still the terminal in session is being obtained the subsequent content of same program.When CDN generation overload is carried out Flow Control, just can not refuse new C2 request targetedly, but the C2 of all new initiations is asked indiscriminate the filtration, will cause the part online user to watch video breaks.
With reference to figure 2, the control method schematic flow sheet that the embodiment of the invention provides the content of a kind of content distribution network CDN to provide is provided Fig. 2, comprising:
Access to content location-server received content among the step 200:CDN provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Particularly, the access to content location-server among the described CDN can be CLS, and it can be that the content that StreamingServer sends provides request message that described content provides request message; This CLS can by and StreamingServer between the C2 interface receive this content request message be provided.
Described content provides the sign of carrying in the request message to realize by expansion LocateRequest message.
Described content provides the type of request message can comprise in conversation type, User Priority or the type of service at least one.
Step 202: the access to content location-server among the described CDN provides the type of request message to carry out the control that content provides according to described content.
Particularly, if it is conversation type that described appearance provides the type of request message, then in CDN, occur transshipping when needing Flow Control, it is the new session of initiating or the session of well afoot that described access to content location-server can provide the conversation type of request message to judge according to described content, if the new session of initiating, then refuse this access to content request, if ongoing session then continues to provide service.Like this, just can avoid can't distinguishing request type because of the CDN system in the prior art, cause ongoing session to be interrupted and carry out Flow Control without distinction when overload, the situation that influences user's impression takes place; And then can improve user experience, promote user satisfaction.
If it is type of service that described appearance provides the type of request message, then in CDN, occur transshipping when needing Flow Control, described access to content location-server can provide the business of request message to judge it is session or the free Client-initiated session that the paying customer initiates according to described content, if free Client-initiated session, then refuse this access to content request, if the session that the paying customer initiates then provides service for it.Like this, just can avoid in the prior art can't the differentiated service type because of the CDN system, causes paying customer's session to be interrupted and carry out Flow Control without distinction when overload, influence the situation generation of user's impression; And then can improve user experience, promote user satisfaction.
If it is type of service that described appearance provides the type of request message, then in CDN, occur transshipping when needing Flow Control, it is the session of high-priority users initiation or the session that domestic consumer initiates that described access to content location-server can provide the business of request message to judge according to described content, if the session that domestic consumer initiates, then refuse this access to content request, if the session that high-priority users is initiated then provides service for it.Like this, just can avoid in the prior art can't the differentiated service type because of the CDN system, causes paying customer's session to be interrupted and carry out Flow Control without distinction when overload, influence the situation generation of user's impression; And then can improve user experience, promote user satisfaction.
The control method that the content of a kind of content distribution network CDN that the embodiment of the invention provides provides, provide request message by the access to content location-server received content among the CDN, and provide the type of carrying in the request message to carry out the control that content provides according to described content, can realize different processing is carried out in dissimilar requests, improve user experience, and promote user satisfaction.
With reference to figure 3, a kind of content distribution network CDN that Fig. 3 also provides for the embodiment of the invention provides the schematic flow sheet of the control method of content, comprising:
Content providing server among the step 300:CDN receives access request, judges the type of described access request;
Particularly, the content providing server among the described CDN can be StreamingServer, and this StreamingServer judges the type of this access request when the access request that terminals such as receiving STB sends.
The type of described access request can comprise at least one in conversation type, User Priority or the type of service.
Step 302: the access to content location-server in CDN sends a request message, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
Wherein, judge earlier self whether content of this request message requests of buffer memory before described access to content location-server sends a request message, if buffer memory not, the access to content location-server in CDN sends a request message again.
Particularly, this StreamingServer find self not the described access request of buffer memory asked content the time, can send a request message by the CLS in CDN, and carry the type of described access request by expanding parameter in this request message, for example, can be by the LocateRequest message in the expansion C2 interface, increase parameter N ewSessionFlag therein and represent conversation type, can be Yes/No with its value, expression be a new initiation session or the session of a well afoot; Also can expand the LocateRequest message in the C2 interface, increase parameter S ervicePriority and represent type of service, can be integer with this ServicePriority parameter value, and being used for representing is paid service or coin free service; Can also expand the LocateRequest message in the C2 interface, increase parameter S ubscriberPriority therein, and can be integer, be used for representing that the user is high-priority users or domestic consumer this SubscriberPriority parameter value.
After this StreamingServer expansion LocateRequest message, carried the type of access request, just can be so that the CLS among the CDN carries out the control that content provides according to the type of access request, for example, when overload appears in CDN, refuse the request of new initiation session, and still provide service for it for the session of well afoot, just can avoid the session of well afoot to be interrupted, improve user experience, promote user satisfaction because of the network reason.
The control method that content is provided of a kind of content distribution network CDN that the embodiment of the invention provides, after receiving access request, judge the type of access request by the content providing server among the CDN, and when sending a request message, carries the access to content location-server in CDN the type of this request, make described access to content location-server carry out the control that content provides according to the type of described access request, can realize different processing is carried out in dissimilar requests, improve user experience, and promote user satisfaction.
Be example with the network architecture shown in Figure 1 below, the embodiment of the invention be described at three kinds of different scenes:
Scene one: STB A has a session that has existed, for example watching program, and this moment, the CDN network transshipped, and STB C initiates a new play-on-demand program request to StreamingServer, and the program that does not have buffer memory STB A and STB C to be asked on the StreamingServer; In this case, StreamingServer expands a parameter in C2 interface LocateRequest message, by the type of this parameter representative request.For example this parameter can be NewSessionFlag, represents it is a new session of initiating during for Yes when its value, when its value represents it is an ongoing session during for No; Promptly in the request message for STBC, the value of NewSessionFlag is made as Yes; For the request message of STB A, the value of NewSessionFlag is made as No.Like this, the CLS among the CDN just can discern the request type of STB A and STBC, continues to provide service to the request of STB A, and the request of STB C is then refused.Scene two: STB B has a session that has existed, for example watching program, and this moment, the CDN network transshipped, and STB C initiates a new play-on-demand program request to StreamingServer, and the program that does not have buffer memory STB B and STB C to be asked on the StreamingServer, and the user of STB B correspondence is high-priority users (being VIP user), and the user of STB C correspondence is a domestic consumer; In this case, StreamingServer expands a parameter in C2 interface LocateRequest message, by the type of this parameter representative request.For example this parameter can be SubscriberPriority, represents it is a new session of initiating during for VIP when its value, when its value represents it is the request of domestic consumer during for Normal; Promptly in the request message for STBC, the value of SubscriberPriority is made as Normal; For the request message of STB B, the value of SubscriberPriority is made as VIP.Like this, the CLS among the CDN just can discern the request type of STB A and STB C, continues to provide service to the request of STB B, and the request of STB C is then refused.
Scene three: STB B has a session that has existed, for example watching program, and this moment, the CDN network transshipped, and STB C initiates a new play-on-demand program request to StreamingServer, and the program that does not have buffer memory STB B and STB C to be asked on the StreamingServer, and the user of STB B correspondence is the paying customer, and the user of STB C correspondence is free user; In this case, StreamingServer expands a parameter in C2 interface LocateRequest message, by the type of this parameter representative request.For example this parameter can be ServicePriority, represents it is a new session of initiating during for F when its value, when its value represents it is the request of domestic consumer during for M; Promptly in the request message for STB C, the value of ServicePriority is made as M; For the request message of STB B, the value of ServicePriority is made as F.Like this, the CLS among the CDN just can discern the request type of STB A and STB C, continues to provide service to the request of STB B, and the request of STB C is then refused.
In above-mentioned three kinds of scenes, need CLS among the CDN can discern the type of the request message that StreamingServer sends, need this CLS pre-configured so that it can discern the type of the request message that StreamingServer sends.
A kind of implementation of the access to content location-server that the CLS in above-mentioned three kinds of scenes can be described by Fig. 2 embodiment, a kind of implementation of the content providing server that StreamingServer can be described by Fig. 3 embodiment.
Said method also can be applied in the scene of Http request, in this case, need be in the header field of Http Get request message or URI spreading parameter, its extended mode can be realized with reference to the description of said method embodiment, repeated no more.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
With reference to figure 4, Fig. 4 is a kind of access to content location-server 40 structural representations that the embodiment of the invention provides, and comprising:
Receiving element 400, being used for received content provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Control unit 402, the type that is used for carrying according to the request message that receiving element 400 receives is carried out the control that content provides.
Wherein, with reference to figure 5, described control unit 402 can also comprise:
Judging unit 4021 is used to judge that described content provides the type of request message;
Processing unit 4022 is used for when the CDN network over loading, and the type after judging according to described judging unit 4021 is controlled, and refuses the access to content request when the type be the new session of initiating, when the type continues to provide service during for ongoing session; When the type is free Client-initiated session, refuse this access to content request, service is provided to provide when session that the type is initiated for the paying customer; When the type be domestic consumer initiate session the time refuse this access to content request, when session that the type is initiated for high-priority users, continue as it service be provided.
A kind of access to content location-server that the embodiment of the invention provides, carry out the control that content provides according to the type that content provides request message to carry, can realize different processing is carried out in dissimilar requests, improve user experience, and promote user satisfaction.
With reference to figure 6, Fig. 6 is a kind of content providing server 60 structural representations that the embodiment of the invention also provides, and comprising:
Receive judging unit 600: be used to receive access request, and judge the type of described access request;
Transmitting element 602: be used for sending a request message to the access to content location-server of CDN, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
With reference to figure 7, Fig. 7 is a kind of content providing server 60 specific implementation structural representations of the embodiment of the invention, wherein:
Described transmitting element 602 can also comprise and send judging unit 604, and the content that is used to judge self whether the cache access request message is asked is if buffer memory not then notifies the access to content location-server of transmitting element 602 in CDN to send a request message.
Described transmitting element 602 can also comprise: expanding element 6021, the access to content location-server that is used for expanding to CDN sends a request message, make described request message carry the type information of described request, described type information is used for the access to content location-server and carries out the control that content provides; Request unit 6022 is used for the request message after 6021 expansions of described expanding element is sent to the access to content location-server of CDN.
The specific implementation of the content providing server 60 that the embodiment of the invention provides can realize with reference to the implementation of StreamingServer among the said method embodiment, repeats no more.
With reference to figure 8, Fig. 8 comprises for a kind of content of the embodiment of the invention provides the structural representation of system:
Access to content location-server 800, being used for received content provides the content of server 802 that request message is provided, and provides the type of carrying in the request message to carry out the control that content provides according to described content;
Content providing server 802, be used to the type that receives access request and judge described access request, send a request message to described access to content location-server 800, described request message carries identification information, and described identification information is used to identify the type of described access request.
Described access to content location-server 800 can realize that described content providing server 802 can be realized with reference to the described content providing server 60 of above-mentioned Fig. 6, Fig. 7, repeat no more with reference to the described access to content location-server 40 of above-mentioned Fig. 4, Fig. 5.
Control method, device and system that the content of a kind of content distribution network CDN that the embodiment of the invention provides provides, after receiving access request, judge the type of access request by the content providing server among the CDN, and when sending a request message, carries the access to content location-server in CDN the type of this request, make the access to content location-server among the CDN carry out the control that content provides according to the type of described access request, can realize different processing is carried out in dissimilar requests, improve user experience, and promote user satisfaction.
The foregoing description only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.

Claims (15)

1. the control method that provides of the content of a content distribution network CDN is characterized in that, comprising:
Access to content location-server received content among the CDN provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Access to content location-server among the described CDN provides the type of request message to carry out the control that content provides according to described content.
2. the control method that the content of content distribution network CDN according to claim 1 provides is characterized in that:
Described content provides the type of request message to comprise in conversation type, User Priority or the type of service at least one.
3. the control method that the content of content distribution network CDN according to claim 2 provides, it is characterized in that the control that the access to content location-server among the described CDN provides the type of request message correspondence to carry out content to provide according to described content comprises at least a in the following manner:
Mode one: when described content provides the type of request message is conversation type, then when described CDN overload, refuses the request of new initiation session, or provides service for the session of well afoot;
Mode two: when described content provides the type of request message is User Priority, then when described CDN overload, and the request of refusal domestic consumer, or provide service for high-priority users; Or
Mode three: when described content provides the type of request message is type of service, then when described CDN overload, refuses free user's request, or provides service for the paying customer.
4. the control method that provides according to the content of arbitrary described content distribution network CDN among the claim 1-3 is characterized in that:
Access to content location-server among the described CDN is content library positioning service CLS, and it is that the content that plug-flow server S treamingServer sends provides request message that described content provides request message; Described CLS by and StreamingServer between the C2 interface receive described content request message be provided; It is to realize by expansion LocateRequest message that described content provides the sign of carrying in the request message.
5. a content distribution network CDN provides the control method of content, it is characterized in that, comprising:
Content providing server among the described CDN receives access request, judges the type of described access request;
Access to content location-server in described CDN sends a request message, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
6. CDN according to claim 5 provides the control method of content, it is characterized in that:
The type of described access request comprises at least one in conversation type, User Priority or the type of service.
7. CDN according to claim 5 provides the control method of content, it is characterized in that:
Judge earlier self whether content of this request message requests of buffer memory before described access to content location-server sends a request message, if buffer memory not, the access to content location-server in CDN sends a request message again.
8. the control method of content is provided according to the arbitrary described CDN of claim 5-6, it is characterized in that:
Content providing server among the described CDN is StreamingServer, and described StreamingServer judges the type of this access request when receiving the access request of set-top box STB transmission;
Accordingly, the content providing server among the described CDN also comprises after receiving access request and judging the type of described access request:
Described StreamingServer expands the LocateRequest message in the C2 interface, carries the type of described access request by the mode that increases parameter; Or
Header field or the mode of parameter in the URI type of carrying described access request of described StreamingServer by expansion Http Get request message.
9. an access to content location-server is characterized in that, comprising:
Receiving element, being used for received content provides request message, and described content provides request message to carry identification information, and described identification information is used to identify the type that described content provides request message;
Control unit, the type that is used for carrying according to the request message that receiving element receives is carried out the control that content provides.
10. access to content location-server according to claim 9 is characterized in that, described control unit comprises:
Judging unit is used to judge that described content provides the type of request message;
Processing unit is used for controlling according to the type after the described judgment unit judges when the CDN network over loading; When the refusal access to content request when being the new session of initiating of described type, when described type continues to provide service during for ongoing session; When described type is free Client-initiated session, refuse this access to content request, service is provided to provide when session that described type is initiated for the paying customer; When described type be domestic consumer initiate session the time refuse this access to content request, when session that described type is initiated for high-priority users, continue as it service be provided.
11. a content providing server is characterized in that, comprising:
Receive judging unit: be used to receive access request, and judge the type of described access request;
Transmitting element: be used for sending a request message to the access to content location-server of CDN, described request message carries identification information, described identification information is used to identify the type of described access request, so that described access to content location-server carries out the control that content provides according to the type of described access request.
12. content providing server according to claim 11 is characterized in that, also comprises:
Send judging unit, the content that is used to judge self whether the cache access request message is asked is if buffer memory not then notifies the access to content location-server of transmitting element in CDN to send a request message.
13., it is characterized in that described transmitting element comprises according to claim 11 or 12 described content providing servers:
Expanding element, the access to content location-server that is used for expanding to CDN sends a request message, and makes described request message carry the type information of described request, and described type information is used for the access to content location-server and carries out the control that content provides;
Request unit is used for the request message after the expansion of described expanding element is sent to the access to content location-server of CDN.
14. a content provides system, it is characterized in that, comprises access to content location-server and content providing server, wherein:
Described access to content location-server, the content that is used to receive described content providing server provides request message, and provides the type of carrying in the request message to carry out the control that content provides according to described content;
Described content providing server, the type that is used to receive described access request and judges described access request, send a request message to described access to content location-server, described request message carries identification information, and described identification information is used to identify the type of described access request.
15. the content of content distribution network CDN according to claim 14 provides system, it is characterized in that:
Described content provides the type of request message to comprise in conversation type, User Priority or the type of service at least one.
CN 201010619588 2010-12-31 2010-12-31 Content provision control method, content provision control device and content provision control system for content transmission network Pending CN102143380A (en)

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