[go: up one dir, main page]

WO2009100672A1 - Procédé de traitement en cas de chemin de contenu anormal, dispositif et système de fonction de chemin de contenu - Google Patents

Procédé de traitement en cas de chemin de contenu anormal, dispositif et système de fonction de chemin de contenu Download PDF

Info

Publication number
WO2009100672A1
WO2009100672A1 PCT/CN2009/070338 CN2009070338W WO2009100672A1 WO 2009100672 A1 WO2009100672 A1 WO 2009100672A1 CN 2009070338 W CN2009070338 W CN 2009070338W WO 2009100672 A1 WO2009100672 A1 WO 2009100672A1
Authority
WO
WIPO (PCT)
Prior art keywords
content
service request
media node
function device
media
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2009/070338
Other languages
English (en)
Chinese (zh)
Inventor
Xiangyang Wu
Shibi Huang
Li Wen
Jingtong He
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2009100672A1 publication Critical patent/WO2009100672A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H04L45/306—Route determination based on the nature of the carried application

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a content routing function device, and a system for processing content exceptions.
  • the streaming media service or IPTV (IP Television) service is a new service.
  • the streaming media service utilizes streaming technology to transmit multimedia files, including video and audio files, on a packet switched network. This content can be played immediately without having to download it completely.
  • the key technology for streaming media implementation is streaming technology, and streaming books.
  • Transmission technology is a network transmission technology that processes continuous video and audio information and puts it on the server, allowing users to watch and listen while downloading, without having to wait for the entire file to be downloaded to their own machine.
  • IMS IP Multimedia Subsystem
  • CSCF Call Session Control Function
  • MGCF Media Gateway Control Function
  • MRF Functional entities such as the Media Resource Function (media resource function), mainly adopting SIP (Session Initiation Protocol) and Diameter protocol, belong to the upper-layer control subsystem, and have nothing to do with the specific access technology. The ideal solution and direction of development.
  • the SIP protocol is an application layer control protocol that can be used to establish, modify, and terminate multimedia sessions (or conferences), such as Internet telephony.
  • the SIP protocol also supports inviting participants to participate in existing sessions, such as multiparty conferences.
  • the IPTV service provided by the IMS-based architecture can fully utilize the existing mechanisms of registration, authentication, routing, session control and establishment, service triggering, charging, and end-to-end QoS (Quality of Service) guarantee in the IMS network.
  • Users provide streaming services and multimedia services that integrate streaming media and real-time session services.
  • CDN Content Delivery/Distribution Network
  • CDN nodes close to users.
  • the user requests content, it can be obtained from these CDN cache nodes in the near future, so that the content can be quickly delivered to the user, thereby improving the user experience and reducing the congestion of the backbone network.
  • the embodiment of the present invention provides a processing method, a content routing function device, and a system when the content routing is abnormal.
  • the technical solution is as follows:
  • a method for processing a content routing exception comprising:
  • the content routing function device forwards the content service request to the media node having the requested content
  • the content routing function device When the deterministic response to the content service request is not received, the content routing function device reselects the media node having the requested content other than the media node;
  • the content routing function device sends the content service request to the reselected media node.
  • a content routing function device includes:
  • a forwarding module configured to forward a content service request to a media node having the requested content
  • An exception processing module configured to: after the forwarding module forwards the content service request, when the deterministic response to the content service request is not received, reselecting a media node having the requested content other than the media node; The content service request is sent to the reselected media node.
  • the embodiment of the present invention further provides a system, where the system includes a content routing function device, configured to forward a content service request to a media node having the requested content; and when a deterministic response to the content service request is not received, Reselecting a media node having the requested content other than the media node; transmitting the content service request to the reselected media node.
  • a content routing function device configured to forward a content service request to a media node having the requested content
  • the content routing function device When the deterministic response to the content service request is not received, the content routing function device reselects the new media node to provide content for the terminal, does not need to notify the terminal to re-route, reduces the participation process of the terminal, and improves content routing. The efficiency enables the terminal to successfully obtain the requested service by sending a content service request, thereby improving the quality of service to the terminal.
  • FIG. 1 is a schematic structural diagram of a CDN according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of implementing IPTV based on IMS according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a CDN according to an embodiment of the present invention.
  • Embodiment 4 is a schematic structural diagram of a networking provided by Embodiment 1 of the present invention
  • 5 is a flowchart of a processing method when a content routing exception is provided according to Embodiment 1 of the present invention
  • FIG. 6 is a message interaction diagram of a method for processing a content routing exception according to Embodiment 1 of the present invention.
  • FIG. 7 is a message interaction diagram of a processing method when another content routing exception is provided according to Embodiment 1 of the present invention.
  • FIG. 8 is a message interaction diagram of a method for processing a content routing exception according to Embodiment 2 of the present invention.
  • FIG. 9 is a message interaction diagram of a method for processing a content routing exception according to Embodiment 3 of the present invention.
  • FIG. 10 is a schematic structural diagram of a system according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic structural diagram of a content routing function device according to Embodiment 4 of the present invention. detailed description
  • the content routing function device forwards the content service request to the media node having the requested content
  • the content routing function device When the deterministic response to the content service request is not received, the content routing function device reselects the media node having the requested content other than the media node, and transmits the content service request to the reselected media node.
  • the CDN networking structure provided by the embodiment of the present invention, the CDN is hierarchically deployed, and the media node having the requested content is multiple.
  • a hierarchical content network consisting of a CS (Center Server) and an ES (Edge Server), including RRS (Request Routing Server), CS and ES are content storage devices, and
  • the user terminal delivers the content to the user terminal, and the user terminal requests the service to obtain the address (URL) of the provided content by accessing the web portal;
  • the DNS (Domain Name System) server receives the service request of the user terminal, and then resolves based on the DNS mechanism.
  • the content address, the RRS address is returned to the user terminal; thereafter, the user terminal sends a content request to the RRS, such as HTTP (HyperText Transfer Protocol), RTSP (Real Time Streaming Protocol), etc.; According to its stored ES load, user IP Select an ES, a user terminal and the content requests are redirected to the ES.
  • HTTP HyperText Transfer Protocol
  • RTSP Real Time Streaming Protocol
  • the embodiment of the present invention provides a structure for combining the CDN and the IMS architecture to implement the IPTV service, where the MF ( Media Control Functions (media function) provides content for users, including MCF (Media Control Function) and MDF (Media Delivery Function), and MCF controls MDF for content delivery.
  • the TPF (Transport Processing Functions) in the IMS system has a transmission function and a transmission control function;
  • the SCF Service Control Function
  • the SCF may select a corresponding MF providing content based on the user terminal location, the MF load, the requested content identifier, and the like;
  • the content routing may also be performed based on the MCF, that is, the MCF selects the corresponding MF providing content according to the MCF load, the requested content identifier, etc., and the MCF is embodied as a redirecting server until the service request is routed to the related MF. Complete the content service request of the terminal.
  • the CDN in the embodiment of the present invention may adopt the CDN in the OPEN IPTV FORUM standard, and the CDN includes:
  • CC Cluster Controller
  • CDF Content Delivery Function
  • CDF entity for content storage and content delivery
  • CDNC Content Delivery Network Controller
  • the CDN in the embodiment of the present invention may also adopt other CDN structures, such as the CDN structure in FIG. 1 or in FIG.
  • This embodiment provides a method for processing a content routing exception.
  • the method is described by using the networking structure provided in FIG. 4 as an example.
  • the networking structure includes:
  • the IPTV service control function entity SCF is used to implement the IPTV service logic
  • UE User Equipment
  • SIP-based IPTV service request that is, a content service request
  • Media node refers to a media server with media control and / or delivery capabilities.
  • the media nodes described herein may have both media control functions and media delivery functions; or they may be separated into separate functional entities with media control functions and media delivery functions, or may have only media delivery functions.
  • the media node may be the ES or CS in FIG. 1; or may be the combination of the MCF and the MDF in FIG. 2 or the MDF; or may be the combination of the CC and the CDF in the OPEN IPTV FORUM standard (FIG. 3).
  • CDF 5) a content routing function (CRF) for storing content index information, where the content index information includes content distribution information of the edge MS and the core MS, and a content service request for receiving the SIP format, according to the content index Information is routed to content service requests;
  • CRF content routing function
  • the interface between the CRF and the MS, and the interface between the two CRFs are content routing interfaces, which have content query and content location functions.
  • the CRF routes or forwards content service requests to the MS or other CRF through the interface.
  • the CRF can also be combined with the media node function into a functional entity, ie the MS has the functionality of the CRF described herein.
  • the CRF can also be merged with the media control function entity therein, that is, as a functional entity.
  • the MCF provided in Figure 2 may have the functionality of the CRF described herein; or the CC in the OPEN IPTV FORUM standard ( Figure 3) has the functionality of the CRF described herein.
  • the secondary CRF has the content index information of the edge MS and the secondary MS, and can perform cross-layer routing. If the routing request directly reaches the secondary CRF, the CRF can select the secondary or edge MS to provide content, when the above route fails.
  • the CRF may forward the content service request to the upper routing entity (CRF) or the upper MS;
  • the first-level CRF and the second-level CRF have the same functions, and each performs cross-layer content routing. That is, if the routing request directly reaches the primary CRF, it can perform cross-layer routing, that is, the primary or secondary MS may be selected for content. Provided; when receiving the content routing request sent by the subordinate CRF, directly select the primary MS to perform the service. In this way, the primary CRF has content index information managed by the secondary CRF and content index information of the primary MS, so that it can perform cross-layer content routing.
  • Level 1 CRF only manages the media content index information of this level, that is, as long as the content service request is received, only one level
  • the second option simplifies the functionality of the Level 1 CRF. It is only a subset of the Level 2 CRF function and is simple to implement; in this case, its functionality can also be combined with the Level 1 MS.
  • the above-mentioned MS adopts hierarchical deployment to form a typical hierarchical or hierarchical CDN network.
  • Figure 4 only the two-level deployment structure is used for description.
  • the multi-level deployment is similar, and will not be described in detail here.
  • This embodiment provides a processing method when content routing is abnormal.
  • the method provides a process when an abnormal situation occurs in the content routing process.
  • the following abnormal conditions may occur in the content routing process:
  • the MS may not respond for a long time; at this time, the CRF may reselect a new MS and resend the content service request to the newly selected MS;
  • the CRF When the CRF sends a content service request to the selected MS, the MS may reply with a failure response. Indicates that there is no requested content. At this point, the CRF can reselect a new MS and resend the content service request to the newly selected MS.
  • the processing method when the content is abnormally includes:
  • the UE initiates a content service request, and the content service request may be a SIP mode, such as a video on demand (VoD) request.
  • the request may carry the content identifier requested by the user, and may also carry the user terminal type. Editing/decoding information, etc., which can be carried in the SDP (Session Description Protocol);
  • the IMS core After receiving the content service request initiated by the UE, the IMS core triggers the SCF to perform processing;
  • the SCF After receiving the trigger of the IMS core, the SCF performs service logic processing, and sends the content service request to the CRF in the CDN network, where the media node that can provide the content requested by the user is located; wherein, the SCF may be in the IMS standard.
  • AS Application Server
  • AS Application Server
  • IPTV control IPTV control
  • TISPAN IPTV control
  • the CRF After receiving the content service request, the CRF performs the MS selection, and forwards the content service request to the selected MS, and starts a CRF request timeout timer.
  • the CRF may locally store content index information including content of multiple edge MSs and core MSs, where the edge MS refers to the node closest to the user; the core MS refers to the edge except for the edge. MS other than MS;
  • the CRF can be selected according to the following strategies:
  • the MS selection is performed according to the content index information that is provided.
  • the content routing function entity may also perform routing in combination with one or more of the following conditions, including: media node load, terminal location, terminal Ability, media node capabilities, etc.
  • the CRF is a secondary CRF
  • when performing MS selection only the MS selection is considered in the edge MS and the secondary MS. For example, when the load of the edge node closer to the terminal location exceeds 80%, the MS is considered to have reached With the load threshold, it is possible to select an edge node that is 40% or less from another load that is farther from the terminal, or a secondary MS that has a load of 10% or less.
  • the CRF may forward the content service request to the upper-level CRF processing; or, the CRF may also be to the content service.
  • the requesting initiator (for example, the SCF) sends a redirect request, which includes the address of the upper-level CRF, and the content service request initiator obtains the address of the upper-level CRF, and then redirects the request to the upper-level CRF processing; Redirect to the upper level CRF.
  • the routing process of the upper-level CRF for the content service request and the above CRF routing process Similarly, only the content index information it has may be different.
  • the selected MS does not respond to the content service request; whether the network congestion causes the response to time out, or the MS downtime fails to respond, a timeout event of the CRF request timeout timer may eventually occur;
  • the MS Normally, after receiving the content service request, the MS sends a response to the CRF and provides the requested content to the terminal. When an abnormal situation occurs, the MS will not respond to the content service request, or send a message without the requested content. The MS in this embodiment does not respond;
  • the method of selecting a new MS here may be performed according to the above selection policy; that is, there may be other edge media nodes and the local media node having the requested content, so that one may be additionally selected therein; or if there are no other optional media nodes , the content routing request can be forwarded to the upper CRF for further processing.
  • the process here gives the former case.
  • the CRF resends the content service request to the newly selected MS.
  • the UE initiates a content service request, and this embodiment is a SIP invite;
  • the SCF After receiving the trigger of the IMS core, the SCF performs service logic processing, and sends the SIP invite to the CRF in the CDN network.
  • the CRF After receiving the SIP invite, the CRF performs the MS selection, and forwards the SIP invite to the selected MS, and starts a CRF request timeout timer.
  • the content routing method includes:
  • the method for selecting a new MS here may be performed according to the above media node selection policy, that is, there may be other edge media nodes and the local media node having the requested content, so that one may be additionally selected therein; or if there is no other optional
  • the media node can forward the content routing request to the upper CRF for further processing. This The flow is given as the former case.
  • the CRF After reselection, the CRF initiates a SIP invite request to the newly selected MS.
  • This embodiment provides a specific processing method for the abnormal situation in the content routing process, and the operation is simple. Meanwhile, when the CRF in this embodiment does not receive the deterministic response to the content routing request, the media node selection is performed again.
  • the method performs re-routing, does not need to notify the terminal to re-route, reduces the participation process of the terminal, improves the efficiency of content routing, enables the terminal to successfully obtain the requested service by sending a content service request, and improves the terminal.
  • the quality of service prevents the content service request of the terminal from failing.
  • the processing mechanism can be well combined with the IMS signaling routing mechanism, and the IMS and the CDN can be seamlessly combined.
  • Example 2 The foregoing method is described by taking the networking structure provided in FIG. 4 as an example. However, the method provided by the embodiment of the present invention is not limited to the networking structure and is applicable to any networking structure, and is not described in detail herein. Example 2
  • This embodiment provides a method for processing a content routing exception.
  • an embodiment of the method of the present invention and a combination of the prior art may be further provided. This embodiment only gives a description of the case where the content node does not respond or the response timeout. Referring to Figure 8, the processing method of the content path exception is briefly described as follows:
  • the processes of 401-407 are basically the same as those of 201-207 described above, except that the SCF in this embodiment is replaced by IPTV control, the CRF function is implemented by the CDNC function, and the CC and CDF constitute a media node.
  • the CDNC When the media node selected by the CDNC according to the content service request does not respond or the response times out, the CDNC reselects a media node, here select CC; thereafter the CDNC sends a content service request to the new media node.
  • the CRF function here can also be combined with the CC function, and does not affect the existing CDNC function; then the CDF is the media node, and it is easy to give the relevant processing flow, which will not be described in detail here.
  • Example 3
  • This embodiment provides a processing method when content routing is abnormal.
  • an embodiment combining the method of the present invention and the prior art may be further provided. This embodiment gives an explanation only for the case where the content node does not respond or the response times out.
  • the processing method when the content routing is abnormal is briefly described as follows: 501-507 is basically the same as the above 201-207, except that the CRF function in this embodiment is implemented by the MCF function, and the MDF is used as a media node.
  • the MCF When the MCF selected by the MCF according to the content service request does not respond or the response times out, the MCF reselects a media node, here selects the MDF; thereafter the MCF sends a content service request to the new media node MDF.
  • a detailed processing flow can be easily given by Embodiment 1, and will not be described again here.
  • CRF can also exist as an independent functional entity, and MCF and MDF form a media node.
  • the SCF forwards the content service request to the CRF, which further selects the media node and sends a content service request thereto; when the MCF response times out or responds to no content, the CRF can reselect a media node and send a content service request thereto.
  • this embodiment provides a system, including: a content routing function device 41, configured to forward a content service request to a media node 42 having the requested content; and when the content service request is not received.
  • a content routing function device 41 configured to forward a content service request to a media node 42 having the requested content; and when the content service request is not received.
  • the media node 42 having the requested content other than the media node 42 is reselected; the content service request is sent to the reselected media node 42.
  • the system can also include:
  • the terminal device 43 is configured to initiate the foregoing content service request
  • the multimedia subsystem core device 44 is configured to forward the content service request sent by the terminal device 43 and trigger the service control function device 45 to perform service processing;
  • the service control function device 45 is configured to: after receiving the service request triggered by the multimedia subsystem core device 44, perform service logic processing, and send the content service request to the selected content routing function device 41 through the multimedia subsystem core device 44, The content routing function device 41 selects the media node 42 and sends a content service request to the selected media node 42;
  • the media node 42 is configured to check whether the content of the content service request exists after receiving the content service request of the content routing function device 41, and if yes, send an acknowledgment response to the content routing function device 41, and provide the requested content to the terminal. If not, the content routing function device 41 is sent a message without the requested content or does not respond to the content service request.
  • the deterministic response that the content routing function device 41 does not receive the content service request includes:
  • the content routing function device 41 receives a message that the media node 42 does not have the requested content, or the content routing function The device 41 does not respond to the media node 42 within the preset time.
  • the media node 42 described herein may have both a media control function and a media delivery function; or it may be separated into separate functional entities having media control functions and media delivery functions, or may have only media delivery functions.
  • the media node 42 may be the ES or CS in FIG. 1; or may be the combination of the MCF and the MDF in FIG. 2 or the MDF; or may be the CC and CDF in the OPEN IPTV FORUM standard (FIG. 3). Combination or CDF;
  • the content routing function device 41 can also be merged with the media control function entity therein, that is, as a functional entity.
  • the MCF in Figure 2 may have the functionality of the content routing function device 41 described herein; or the CC in the OPEN IPTV FORUM standard ( Figure 3) has the functionality of the content routing function device 41 described herein.
  • the content routing function device 41 may store the content index information of the plurality of media nodes 42 and the core media nodes in advance, and the content of the content index information is the same as that in the first embodiment, and may be implemented when the media node 42 is selected.
  • the strategy described in Example 1 is selected and will not be described in detail herein.
  • the content routing function device includes:
  • the forwarding module 411 is configured to forward the content service request to the media node having the requested content
  • the exception processing module 412 is configured to: after the forwarding module 411 forwards the content service request, when not receiving the deterministic response to the content service request, reselecting the media node having the requested content other than the media node; sending the content service request to Reselected media node.
  • the forwarding module 411 includes:
  • a media node selection unit configured to select, according to content index information of the content of the plurality of edge media nodes and the core media node that are included in the content, the media node having the content requested in the content service request;
  • a forwarding unit configured to forward the content service request to the media node selected by the media node selection unit.
  • the exception handling module 412 includes:
  • An abnormal situation determining unit configured to: when receiving a message that the media node selected by the forwarding module does not have the requested content, or when the media node selected by the forwarding module does not respond within a preset time, determining that an abnormal situation occurs;
  • an exception processing unit configured to: when the abnormal condition determining unit determines that an abnormal situation occurs, reselect a media node having the requested content other than the media node; and send the content service request to the reselected media node.
  • the media node is selected according to the content service request, and the content routing is implemented, and the operation is simple and easy to implement.
  • the content index information of the plurality of edge media nodes and the core media node stored locally may only have the requested content.
  • the media node is selected.
  • the method of re-selecting the media node is used to perform re-routing, without notifying the terminal to re-route, minus
  • the participation process of the terminal is reduced, the efficiency of content routing is improved, and the terminal can successfully obtain the requested service by sending a content service request, thereby improving the quality of service to the terminal, and the processing mechanism can be good and IMS signaling.
  • All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program is stored in a readable storage medium such as a hard disk, an optical disk or a floppy disk in a computer.
  • a readable storage medium such as a hard disk, an optical disk or a floppy disk in a computer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de traitement en cas de chemin de contenu anormal, un dispositif et système de fonction de chemin de contenu, appartenant au domaine de la communication. Le procédé inclut les étapes suivantes : la fonction de chemin de contenu transmet une demande de service de contenu à une station multimédia avec le contenu demandé, lorsqu'une réponse de certitude à la demande de service de contenu n'est pas reçue ; la fonction de chemin de contenu resélectionne une station multimédia avec le contenu demandé, à l'exception de ladite station multimédia, et envoie la demande de service de contenu à la station multimédia resélectionnée. Le dispositif de fonction de chemin de contenu inclut un module de transmission et un module de traitement d'anormalité. Le système inclut un dispositif de fonction de chemin de contenu. Dans l'invention, lorsqu'une anormalité apparaît, une nouvelle station multimédia est resélectionnée, et la demande de service de contenu d'un terminal est achevée par la station multimédia resélectionnée, la qualité de service étant ainsi améliorée.
PCT/CN2009/070338 2008-02-05 2009-02-02 Procédé de traitement en cas de chemin de contenu anormal, dispositif et système de fonction de chemin de contenu Ceased WO2009100672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810057703.2 2008-02-05
CNA2008100577032A CN101505261A (zh) 2008-02-05 2008-02-05 内容路由异常时的处理方法、内容路由功能设备和系统

Publications (1)

Publication Number Publication Date
WO2009100672A1 true WO2009100672A1 (fr) 2009-08-20

Family

ID=40956659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/070338 Ceased WO2009100672A1 (fr) 2008-02-05 2009-02-02 Procédé de traitement en cas de chemin de contenu anormal, dispositif et système de fonction de chemin de contenu

Country Status (2)

Country Link
CN (1) CN101505261A (fr)
WO (1) WO2009100672A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119583438A (zh) * 2024-11-27 2025-03-07 天翼安全科技有限公司 一种前端资源的容灾管理方法及装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102427412A (zh) * 2011-12-31 2012-04-25 网宿科技股份有限公司 基于内容分发网络的零延时主备源灾备切换方法和系统
CN102868753B (zh) * 2012-09-25 2016-03-02 网宿科技股份有限公司 基于内容分发网络优化后自适应的空响应恢复方法和装置
CN102932466B (zh) * 2012-11-07 2015-09-23 网宿科技股份有限公司 基于内容分发网络的分布式源监控方法和系统
CN108123927A (zh) * 2016-11-30 2018-06-05 中兴通讯股份有限公司 一种cdn网络通信方法、装置及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040225749A1 (en) * 2003-05-08 2004-11-11 Gregory Pavlik Transformation of web site summary via taglibs
CN101006710A (zh) * 2004-06-30 2007-07-25 建利尔电子公司 分布式通信系统中的自动阻断及自动探索

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040225749A1 (en) * 2003-05-08 2004-11-11 Gregory Pavlik Transformation of web site summary via taglibs
CN101006710A (zh) * 2004-06-30 2007-07-25 建利尔电子公司 分布式通信系统中的自动阻断及自动探索

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119583438A (zh) * 2024-11-27 2025-03-07 天翼安全科技有限公司 一种前端资源的容灾管理方法及装置

Also Published As

Publication number Publication date
CN101505261A (zh) 2009-08-12

Similar Documents

Publication Publication Date Title
US8392583B2 (en) Distribution of shared content streams in communications networks
US8332527B2 (en) Streaming media network system, streaming media service realization method and streaming media service enabler
CN101547189B (zh) 一种CoD业务的建立方法,系统和装置
US8077717B2 (en) Method and system for providing multicast services
WO2010115331A1 (fr) Procédé de localisation de contenu et noeud de réseau fournisseur de contenu
JP4932906B2 (ja) Ｉｍｓアーキテクチャ・ネットワークにおけるｉｐサービスに渡ってテレビジョンにアクセスするためのシステム
US20130007186A1 (en) Controlling content caching and retrieval
RU2647654C2 (ru) Система и способ доставки аудиовизуального контента в клиентское устройство
JP2009533925A (ja) ノード
WO2008049314A1 (fr) Procédé et système pour implémenter un service de multidiffusion ou un service de diffusion générale sur la base d'un réseau de nouvelle génération
WO2007093124A1 (fr) Procédé et système d'ordonnancement de ressources multimédia
WO2009024081A1 (fr) Procédé, dispositif et système pour traiter la continuité du flux multimédia dans une session
CN102148739B (zh) 一种ims会话路由控制方法及系统
WO2009124747A1 (fr) Système et procédé de conférence
US9026677B2 (en) Method and apparatus for providing video on demand
WO2009100672A1 (fr) Procédé de traitement en cas de chemin de contenu anormal, dispositif et système de fonction de chemin de contenu
CN102111608B (zh) 一种视频监控系统的通信方法及其设备
CN101557331B (zh) 内容索引处理方法及系统、内容路由功能及内容分发控制实体
CN101193068B (zh) 一种应答请求的方法和设备
WO2011015015A1 (fr) Procédé de téléchargement de contenu vers l'amont et entité de fonction de livraison de contenu
CN101399822B (zh) 确定媒体流路径关系的方法及呼叫控制系统
WO2008089702A1 (fr) Système et procédé de mise en oeuvre de service multimédia en flux, et entité de fonction de commande de ce service
WO2009003408A1 (fr) Procédé de commutation d'un flux multimédia, système et équipement dans un service de télévision à décalage temporel
WO2008098504A1 (fr) Procédé et système pour fournir un service multidiffusion et dispositif pour fournir un paramètre de service multidiffusion
WO2009092307A1 (fr) Procédé, système et dispositif d'accès à une ressource non-sip

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09710831

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09710831

Country of ref document: EP

Kind code of ref document: A1