WO2016000151A1 - 视频分发方法、设备和系统 - Google Patents

视频分发方法、设备和系统 Download PDF

Info

Publication number
WO2016000151A1
WO2016000151A1 PCT/CN2014/081219 CN2014081219W WO2016000151A1 WO 2016000151 A1 WO2016000151 A1 WO 2016000151A1 CN 2014081219 W CN2014081219 W CN 2014081219W WO 2016000151 A1 WO2016000151 A1 WO 2016000151A1
Authority
WO
WIPO (PCT)
Prior art keywords
copy
video
target
vog
target video
Prior art date
Application number
PCT/CN2014/081219
Other languages
English (en)
French (fr)
Inventor
韩厚晓
夏渊
赵文军
陈潇
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/081219 priority Critical patent/WO2016000151A1/zh
Priority to CN201480002447.0A priority patent/CN105532012B/zh
Publication of WO2016000151A1 publication Critical patent/WO2016000151A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/437Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server

Definitions

  • the present invention relates to the field of information technology and, more particularly, to a video distribution method, apparatus and system. Background technique
  • the 3rd Generation Partnership Project (3GPP) organization proposes an Evolved Packet System (EPS), which aims to flatten the network structure, reduce the network hierarchy, and be compatible with multiple wireless access technologies.
  • EPS Evolved Packet System
  • the combination of a mobile broadband network and a Content Delivery Network (CDN) can alleviate the traffic pressure from these video applications.
  • the CDN can cache the hot video content or the video provided by the content provider with the cooperation in the video cache node closer to the user, and the CDN system can redirect the user's request to the service node closest to the user, so that the user can Get the content you need and solve the problem of network congestion.
  • the CDN system only allows the user to select a nearby node to obtain a video copy. However, when the video copy of the nearest node cache is still selected in the case of poor network quality or network congestion, the network condition may be further deteriorated and the user experience may be affected. Summary of the invention
  • the embodiment of the invention provides a video distribution method, device and system, which can provide a video copy that meets the user's needs according to the current network condition, thereby reducing the video traffic pressure of the mobile broadband network and improving the user experience.
  • a video distribution method including: VGA connection at a video optimization gateway Obtaining, by the user equipment, a video request for the target video, the determining information of the UE, where the determining information includes at least one of user subscription information, terminal capability information, and current network state information of the UE. Determining, according to the determination information, a target video parameter for the UE, where the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type; the VOG is according to the The target video parameter acquires a storage address of a target copy of the plurality of copies of the target video from a content distribution network CDN control node; the VOG acquires the target copy according to the storage address.
  • the video request includes an identifier of the UE
  • the determining the information of the UE includes: determining, according to the identifier of the UE, the UE User subscription information and terminal capability information, and determine current network status information.
  • the video request includes a uniform resource locator URL of the target video, where the VOG is from the content according to the target video parameter.
  • the method further includes: transmitting the URL to the CDN control node; receiving the CDN control node according to the URL a copy parameter of each of the plurality of copies of the target video transmitted, wherein the copy parameter of each copy includes a resolution, a frame rate, a code rate, a codec type, and a storage address of each copy At least one of them.
  • the VOG acquires a target in multiple copies of the target video from a content distribution network CDN control node according to the target video parameter.
  • the storage address of the copy includes: determining, according to the copy parameter of each copy, a target copy that matches the target video parameter; determining a storage address of the target copy.
  • the VOG acquires a target in multiple copies of the target video from a content distribution network CDN control node according to the target video parameter.
  • the storage address of the copy comprising: sending a request message carrying the URL and the target video parameter to the CDN control node, so that the CDN node determines in the multiple copies of the target video indicated by the URL a target copy matching the target video parameter, and determining a storage address of the target copy; receiving a storage address of the target copy sent by the CDN control node.
  • the acquiring, by the VOG, the target copy according to the storage address includes: pointing from the storage address
  • the server corresponding to the CDN node reads the target copy; after the VOG acquires the target copy according to the storage address, the method further includes: sending the target copy to the UE.
  • the method further includes: collecting video heat information of the target video according to the received video request; and controlling the CDN The node sends the video heat information to facilitate the CDN control node to summarize the video heat information of the plurality of videos reported by the VOG, and determine at least one hotspot video; acquire the at least one hotspot video from the CDN control node, and cache The at least one hotspot video.
  • a video distribution method including: a content distribution network CDN control node receives a request message for a target video sent by a video optimization gateway VOG; and the CDN control node sends a message to the VOG according to the request message. Copying information of the target video, so that the VOG acquires a target copy of the target video according to the copy information.
  • the request message for the target video includes a uniform resource locator URL of the target video
  • the CDN control node sends the message according to the request message.
  • Transmitting the copy information of the target video by the VOG comprising: determining, according to the URL, a copy parameter of each of the plurality of copies of the target video, wherein the copy parameter of each copy includes a resolution of each copy At least one of a rate, a frame rate, a code rate, a codec type, and a storage address; transmitting, to the VOG, a copy parameter of each of the plurality of copies, to facilitate the VOG according to each of the copies
  • the copy parameter determines a storage address of the target copy that matches the target video parameter, and reads the target copy from a server corresponding to the CDN node pointed to by the storage address, wherein the target video parameter is requested by the VOG according to the initiated video request Determining at least one of user subscription information, terminal capability information, and current
  • the request message for the target video includes a uniform resource locator URL of the target video and a target video determined by the VOG a target video parameter of the requested user equipment UE, where the target video parameter is determined by the VOG according to at least one of user subscription information, terminal capability information, and current network state information of the UE, where the target video parameter includes At least one of resolution, frame rate, code rate, codec type.
  • a third implementation manner of the second aspect Transmitting, by the CDN control node, the copy information of the target video to the VOG according to the request message, including: determining, in a plurality of copies of the target video indicated by the URL, a target copy that matches the target video parameter And determining a storage address of the target copy; sending a storage address of the target copy to the VOG, so that the VOG reads the target copy from a server corresponding to the CDN node pointed to by the storage address.
  • a video optimization gateway including: an acquiring unit, configured to acquire, when the video optimization gateway VOG receives a video request for a target video sent by a user equipment UE, the determination information of the UE, where The determining information includes at least one of user subscription information, terminal capability information, and current network state information of the UE, where the determining unit is configured to determine a target video parameter for the UE according to the determination information, where The target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type.
  • the acquiring unit is further configured to acquire the target video from a content distribution network CDN control node according to the target video parameter. a storage address of the target copy in the plurality of copies; the obtaining unit is further configured to acquire the target copy according to the storage address.
  • the video request includes an identifier of the UE
  • the acquiring unit is specifically configured to: determine user subscription information of the UE according to the identifier of the UE And terminal capability information, and determine current network status information.
  • the video request includes a uniform resource locator URL of the target video
  • the VOG further includes a sending unit and a receiving unit, where The sending unit is configured to: send the URL to the CDN control node; the receiving unit is configured to receive a copy parameter of each copy of the plurality of copies of the target video sent by the CDN control node according to the URL
  • the copy parameter of each of the copies includes at least one of a resolution, a frame rate, a code rate, a codec type, and a storage address of each of the copies.
  • the determining unit is specifically configured to: determine, according to the copy parameter of each copy, a target copy that matches the target video parameter ; Determine the storage address of the target copy.
  • the VOG further includes a sending unit and a receiving unit, where the sending unit is configured to: send, send, to the CDN control node a URL and a request message of the target video parameter, so that the CDN node determines the target video parameter in the plurality of copies of the target video indicated by the URL Number matching the target copy, and determining the storage address of the target copy; the receiving unit is configured to: receive a storage address of the target copy sent by the CDN control node.
  • the acquiring unit is specifically configured to: read the target copy from a server corresponding to the CDN node pointed by the storage address;
  • the sending unit is further configured to: send the target copy to the UE.
  • the VOG further includes a statistic unit and a sending unit, where the statistic unit is configured to: perform the statistics according to the received video request
  • the video heat information of the target video is sent to the CDN control node by the sending unit, so that the CDN control node summarizes the video heat information of the plurality of videos reported by the VOG, and determines at least one hot video.
  • the obtaining unit is further configured to: acquire the at least one hotspot video from the CDN control node, and cache the at least one hotspot video.
  • a content distribution network control node including: a receiving unit, configured to receive a request message for a target video sent by a video optimization gateway VOG, and a sending unit, configured to send, according to the request message, the VOG Copy information of the target video, so that the VOG acquires a target copy of the target video according to the copy information.
  • the request message for the target video includes a uniform resource locator URL of the target video
  • the CDN control node further includes a determining unit, where the determining The unit is specifically configured to: determine, according to the URL, a copy parameter of each of the plurality of copies of the target video, where the copy parameter of each copy includes a resolution, a frame rate, and a code rate of each copy At least one of a codec type and a storage address; transmitting, by the transmitting unit, a copy parameter of each of the plurality of copies to the VOG, so that the VOG is based on a copy parameter of each copy Determining a storage address of the target copy that matches the target video parameter, and reading the target copy from a server corresponding to the CDN node pointed to by the storage address, wherein the target video parameter is determined by the VOG according to a user device that initiates a video request Determining at least one of user subscription information, terminal capability information, and current network
  • the request message for the target video includes a uniform resource locator URL of the target video and a target video determined by the VOG Target video parameter of the requested user equipment UE, where The target video parameter is determined by the VOG according to at least one of user subscription information, terminal capability information, and current network state information of the UE, where the target video parameter includes resolution, frame rate, code rate, codec type. At least one of them.
  • the CDN control node further includes a determining unit, where the determining unit is configured to: the target video indicated by the URL Determining a target copy matching the target video parameter among the plurality of copies, and determining a storage address of the target copy; transmitting, by the sending unit, a storage address of the target copy to the VOG, so as to facilitate the VOG
  • the server corresponding to the CDN node pointed to by the storage address reads the target copy.
  • a video distribution system including: a video optimization gateway VOG and a content distribution network CDN control node, where the VOG is configured to acquire the video request for the target video sent by the user equipment UE a determination information of the UE, where the determination information includes at least one of user subscription information, terminal capability information, and current network state information of the UE; determining, according to the determination information, a target video parameter for the UE, where The target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type; acquiring, from the CDN control node, a storage of a target copy in the plurality of copies of the target video according to the target video parameter Obtaining the target copy according to the storage address; the content distribution network CDN control node is configured to receive a request message for the target video sent by the VOG; and send the message to the VOG according to the request message Copy information of the target video, so that the VOG acquires the A copy of the target standard video.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • 1 is a network architecture diagram of an embodiment of the present invention.
  • 2 is a flow chart of a video distribution method according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a video distribution method according to an embodiment of the present invention.
  • FIG. 4 is an interaction diagram of a video distribution method according to an embodiment of the present invention.
  • FIG. 5 is an interaction diagram of a video distribution method according to another embodiment of the present invention.
  • FIG. 6 is an interaction diagram of a video distribution method according to another embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of a video optimization gateway in accordance with an embodiment of the present invention.
  • Figure 8 is a schematic block diagram of a content distribution network control node in accordance with one embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of a video optimization gateway according to another embodiment of the present invention.
  • FIG. 10 is a schematic block diagram of a content distribution network control node according to another embodiment of the present invention. detailed description
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • a user equipment which may also be called a mobile terminal, a mobile user equipment, or the like, may communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network).
  • the user equipment may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle,
  • the wireless access network exchanges languages and/or data.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • the EPS system may include a base station (taking an eNB as an example), a Serving Gateway (SGW), a Packet Data Network Gateway (PGW), and a Mobility Management Entity (MME).
  • SGW Serving Gateway
  • PGW Packet Data Network Gateway
  • MME Mobility Management Entity
  • a policy and Charging Rule Function (PCRF) is formed, and a core optimization service gateway, such as a Video Optimization Gateway (VOG), can be integrated into the packet data gateway as a logical function module. It can also be deployed as a standalone device. When deployed as a standalone device, it can be connected to the packet data gateway through the Sgi interface to provide video buffering and optimization processing.
  • VOG Video Optimization Gateway
  • a Content Delivery Network is a distributed content distribution network built on a Packet Data Network (PDN).
  • the CDN system may include a plurality of service nodes, and at least one control node.
  • the CDN control node can utilize the global load balancing technology to point the user's access to the CDN service node closest to the user that can provide the corresponding service to the user, the CDN service node corresponding to the server that actually provides the content for the user.
  • An open interface between the VOG and the CDN can be configured when the network is built or the network is maintained, or a logical channel can be established for the VOG and the CDN so that the two can communicate.
  • the CDN is a logical network
  • the VOG can open interfaces or establish logical channels with the edge nodes of the CDN to facilitate communication.
  • the UE may initiate a video request to the base station, and the base station may send the video request to the VOG through the gateway, and the VOG determines the video to be transmitted to the UE according to the terminal capability of the UE, the user subscription information, and the current network status. Parameters such as resolution, frame rate, code rate, codec type, etc.
  • the VOG obtains a suitable video copy from the CDN and transmits it to the user according to the determined parameters of the video to be transmitted to the UE through an interface or a logical channel with the CDN.
  • FIG. 2 is a flow chart of a video distribution method according to an embodiment of the present invention.
  • the method of Figure 2 can be performed by a video optimization gateway VOG.
  • the video optimization gateway VOG receives the video request for the target video sent by the user equipment UE, the determination information of the UE, where the determination information includes at least one of user subscription information, terminal capability information, and current network state information of the UE.
  • the determination information includes at least one of user subscription information, terminal capability information, and current network state information of the UE.
  • the VOG determines, according to the determination information, a target video parameter for the UE, where the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type.
  • the VOG acquires, from the content distribution network CDN control node, a storage address of the target copy in the plurality of copies of the target video according to the target video parameter. 204. The VOG obtains a target copy according to the storage address.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • the video request includes the identifier of the UE
  • the step 201 includes: determining user subscription information and terminal capability information of the UE according to the identifier of the UE, and determining current network state information.
  • the VOG may obtain the user subscription information and the terminal capability information by using the identifier of the UE carried in the video request, and the identifier of the UE may be an International Mobile Subscriber Identification (IMSI). ), Mobile Subscriber Identification Number (MSIN) and International Mobile Equipment Identity (IMEI).
  • IMSI International Mobile Subscriber Identification
  • MSIN Mobile Subscriber Identification Number
  • IMEI International Mobile Equipment Identity
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a common user, etc.), and an acceptable Quality of Service (QoS). Allowed rate, codec type, etc.
  • QoS Quality of Service
  • the terminal capability information can be obtained through the UE reporting, or can be obtained by using the identifier of the UE.
  • the terminal capability information can indicate the maximum resolution, frame rate, codec type, and video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report or the core network to indicate the current smoothness, congestion level or load status of the network.
  • the VOG determines a target video parameter for the UE according to the determination information.
  • the VOG may determine, according to the user subscription information and the terminal capability information, a maximum resolution, a frame rate, a code rate, and a codec type supported by the UE, and may also have a video file type supported by the UE. Further, the VOG may finally determine the resolution, the frame rate, the code rate, and the codec type as the target video parameters according to the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further.
  • VOG can also determine the resolution, frame rate, range of code rate and codec type according to user subscription information and terminal capability information. VOG is near The above parameters are determined according to the network status information, and when the network status is poor, the above parameters are not reduced below the range, and the user experience of some high priority users can be guaranteed.
  • the video request includes a uniform resource locator of the target video.
  • the method further comprising: sending a URL to the CDN control node; receiving a copy parameter of each of the plurality of copies of the target video sent by the CDN control node according to the URL, wherein the copy parameters of each copy include each At least one of a resolution, a frame rate, a code rate, a codec type, and a storage address of the copy.
  • the VOG After receiving the video request, the VOG can forward the video request to the CDN control node. It should be understood that since the CDN control node is not necessarily connected to the VOG, the CDN edge node connected to the VOG can finally forward the video request to the CDN control node through the CDN system.
  • the CDN control node may determine a copy parameter of the plurality of copies of the target video pointed to by the URL according to the URL carried in the video request. Specifically, since each copy of the target video is stored on a server corresponding to a plurality of different CDN service nodes, the CDN control node may aggregate the copy parameters of the plurality of copies and send them to the VOG. The copy parameters of different copies may be completely different or partially different.
  • two copies with the same resolution, frame rate, code rate, and codec type may be stored in different addresses, or multiple copies may be stored in the same storage address. , frame rate, code rate, codec different copies, and so on.
  • the plurality of copy parameters summarized by the CDN control node may be a copy parameter of all copies of the target video, or may be a copy parameter of the partial copy, which is not limited by the present invention.
  • step 203 includes: determining, according to a copy parameter of each copy, a target copy that matches the target video parameter; determining a storage address of the target copy.
  • the VOG may determine, in the copy parameters of the plurality of copies, a copy corresponding to the copy parameter matching the target video parameter determined by the VOG, and determine that the copy is the target copy. . Specifically, the VOG may first determine whether there are duplicate parameters of the copy parameters of the multiple copies that are identical to the target video parameters, and if yes, directly determine that the corresponding copy of the same copy parameter is the target copy; if not, the target and the target may be selected. Video parameters are closer to the copy parameters. After the target copy is determined, its storage address can be determined directly based on the copy parameters of the target copy.
  • step 203 includes: sending a request message carrying a URL and a target video parameter to the CDN control node, so that the CDN node determines, in the multiple copies of the target video indicated by the URL, the target video parameter. a copy of the target, and determine the storage of the target copy Store address; Receive the storage address of the target copy sent by the CDN control node.
  • the VOG may send the URL and the target video parameter to the CDN control node, where the CDN control node determines the copy parameter of the multiple copies of the target video.
  • the CDN control node may determine whether there are duplicate parameters of the copy parameters of the plurality of copies that are identical to the target video parameter, and if so, send the storage address in the copy parameter to the VOG If not, you can select the copy parameter that is closer to the target video parameter and send the storage address to the VOG.
  • the step 204 includes: reading a target copy from a server corresponding to the CDN node pointed to by the storage address; after acquiring the target copy according to the storage address, the VOG further includes: sending the target copy to the UE.
  • the VOG may obtain the target copy from the server corresponding to the corresponding CDN service node according to the storage address.
  • the method further includes: counting video heat information of the target video according to the received video request; and sending video heat information to the CDN control node, so that the CDN control node summarizes the multiple videos reported by the VOG.
  • Video heat information and determining at least one hotspot video; acquiring at least one hotspot video from the CDN control node, and buffering at least one hotspot video.
  • the VOG may determine the video popularity information according to the number of times the video request for the target video is received, and the CDN control node may summarize the video heat information of the plurality of videos, and determine at least one video with the highest video popularity, for example, determine the video request times ranking.
  • the highest N videos are hot videos.
  • the determined at least one hotspot video is buffered to the VOG to provide video directly to the user when the VOG receives a subsequent request for the hotspot video.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • FIG. 3 is a flow chart of a video distribution method according to an embodiment of the present invention. The method of Figure 3 is performed by the CDN Control Node.
  • the content distribution network CDN control node receives a request message for the target video sent by the video optimization gateway VOG. 302. The CDN control node sends the copy information of the target video to the VOG according to the request message, so that the VOG obtains the target copy of the target video according to the copy information.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • the VOG may forward the request message to the CDN control node or after processing and send it to the CDN control node.
  • the request message carries the URL of the target video requested by the UE, and the request message may further carry the target video parameter determined by the VOG for the UE.
  • the request message for the target video includes a uniform resource locator URL of the target video
  • the CDN control node sends the copy information of the target video to the VOG according to the request message, including: determining, according to the URL, multiple target videos.
  • each of the plurality of copies is sent to the VOG Copy parameters of the copy, so that the VOG determines the storage address of the target copy matching the target video parameter according to the copy parameter of each copy, and reads the target copy from the server corresponding to the CDN node pointed to by the storage address, wherein the target video parameter is The VOG determines, according to at least one of user subscription information, terminal capability information, and current network state information of the user equipment UE that initiates the video request, the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type. .
  • the VOG may forward the request message to the CDN control node.
  • the CDN control node may determine a copy parameter of the plurality of copies of the target video pointed to by the URL according to the URL carried in the video request. Specifically, since each copy of the target video is stored on a server corresponding to a plurality of different CDN service nodes, the CDN control node may aggregate the copy parameters of the plurality of copies and send the copy parameters to the VOG.
  • the VOG may determine the target video parameter for the UE according to the determination information, and the determination information is obtained by the VOG, including at least the user subscription information, the terminal capability information, and the network status information.
  • the user subscription information and the terminal capability information may be obtained by using the identifier of the UE carried in the video request, and the identifier of the UE may be an IMSI, an MSIN, an IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by the UE reporting, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report, or obtained by the core network, to indicate the current smoothness, congestion level or load status of the network.
  • the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE may be determined according to the user subscription information and the terminal capability information, and the video file type supported by the UE may also be used. Further, the VOG can finally determine the resolution, frame rate, code rate, and codec type as the target video parameters based on the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion.
  • the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the parameters are It does not fall below the range and guarantees the user experience for some high-priority users.
  • the VOG may determine, in the copy parameters of the plurality of copies, a copy corresponding to the copy parameter matching the target video parameter determined by the VOG, and determine that the copy is the target copy. . Specifically, the VOG may first determine whether there are duplicate parameters of the copy parameters of the multiple copies that are identical to the target video parameters, and if yes, directly determine that the corresponding copy of the same copy parameter is the target copy; if not, the target and the target may be selected. Video parameters are closer to the copy parameters. After determining the target copy, correspondingly according to the item The copy parameter of the standard copy directly determines its storage address.
  • the request message for the target video includes a uniform resource locator URL of the target video and a target video parameter of the user equipment UE determined by the VOG for initiating the video request, where the target video parameter is determined by the VOG according to the UE.
  • the at least one of the user subscription information, the terminal capability information, and the current network state information determines that the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type.
  • the VOG may determine the target video parameter for the UE according to the determination information, and the determination information is obtained by the VOG, and includes at least one of user subscription information, terminal capability information, and network state information, where the user
  • the subscription information and the terminal capability information may be obtained by using the identifier of the UE carried in the video request, and the identifier of the UE may be an IMSL MSIN, an IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by reporting by the UE, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report or the core network to indicate the current smoothness, congestion level or load status of the network.
  • the target video parameter for the UE is determined by the VOG according to the determination information.
  • the VOG may determine the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE, according to the user subscription information and the terminal capability information. There may be video file types supported by the UE.
  • the VOG can finally determine the resolution, frame rate, code rate, and codec type as the target video parameters based on the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion.
  • the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the above parameters It does not fall below the range and guarantees the user experience for some high-priority users.
  • the VOG may send the URL for the target video and the target video parameters for the UE to the CDN control node.
  • the CDN control node determines a copy parameter that matches the target video parameter in the copy parameters of the plurality of copies of the target video. Similarly, the CDN control node can determine whether there are duplicate copies of the copy parameters of the plurality of copies that are identical to the target video parameters.
  • the parameter if any, sends the storage address in the copy parameter to the VOG; if not, the copy parameter that is closer to the target video parameter can be selected, and the storage address is sent to the VOG, so that the VOG is correspondingly based on the storage address.
  • the server corresponding to the CDN service node obtains the target copy.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • FIG. 4 is an interaction diagram of a video distribution method according to an embodiment of the present invention.
  • the UE initiates a video request for the target video to the VOG, where the request carries the URL of the target video, or other tag that uniquely identifies the target video.
  • the video request may also carry the identifier of the UE, such as IMSI, MSIN, IMEI, and the like.
  • the VOG After receiving the video request, the VOG forwards the request to the CDN control node, and forwards the URL of the target video to the CDN control node.
  • Step S404 can be performed after step S401 and at any time before step S405, which is not limited by the present invention.
  • the determining information for the UE may be first obtained, where the determining information includes at least one of user subscription information, terminal capability information, and current network status information of the UE.
  • the user subscription information and the terminal capability information may be obtained by using the identifier of the UE carried in the video request, and the identifier of the UE may be IMSI, MSIN, and IMEI.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec.
  • the terminal capability information can be obtained by reporting the UE or by using the identifier of the UE.
  • the terminal capability information can indicate the maximum resolution, frame rate, codec type, and video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report, or obtained by the core network, to indicate the current smoothness, congestion, or load status of the network.
  • the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE may be determined according to the user subscription information and the terminal capability information, and the video file type supported by the UE may also be used. Further, the VOG can finally determine the resolution, frame rate, code rate, and codec type as the target video parameters based on the current network state information.
  • the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion. If the current network status is good, the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE can be determined as the final target video parameters, so as to provide users with higher quality video and improve. user experience. In addition, the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the parameters are It does not fall below the range and guarantees the user experience for some high-priority users.
  • the VOG controls a copy of each copy sent by the CDN control node according to step S403.
  • the parameter, and the target video parameter determined in step S404 may determine a copy of the copy parameter of each copy of the copy that can match the target video parameter, and determine the copy as the target copy.
  • the VOG may first determine whether there are duplicate parameters of the copy parameters of the multiple copies that are identical to the target video parameters, and if yes, directly determine that the corresponding copy of the same copy parameter is the target copy; if not, the target and the target may be selected. Video parameters are closer to the copy parameters. After the target copy is determined, its storage address can be directly determined according to the copy parameter of the target copy.
  • the VOG may obtain the target copy from the server corresponding to the corresponding CDN service node according to the storage address.
  • FIG. 5 is an interaction diagram of a video distribution method according to another embodiment of the present invention.
  • the UE initiates a video request for the target video to the VOG, where the request carries the URL of the target video, or other tag that uniquely identifies the target video.
  • the video request may also carry the identifier of the UE, such as IMSI, MSIN, IMEI, and the like.
  • the determining information for the UE may be obtained, where the determining information includes at least one of user subscription information, terminal capability information, and current network state information of the UE.
  • the user subscription information and the terminal capability information may be obtained by using the identifier of the UE carried in the video request, and the identifier of the UE may be an IMSI, an MSIN, an IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by the UE, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report, or obtained by the core network, to indicate the current smoothness, congestion level or load status of the network.
  • the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE can be determined according to the user subscription information and the terminal capability information, and the video file type supported by the UE can also be used. Further, the VOG may finally determine the resolution, the frame rate, the code rate, and the codec type as the target video parameters according to the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion.
  • the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the parameters are It does not fall below the range and guarantees the user experience for some high-priority users.
  • the VOG transmits a request message carrying the URL of the target video and the target video parameter determined by the VOG in step S502 to the CDN control node.
  • the CDN control node After receiving the request message, the CDN control node determines a copy parameter matching the target video parameter in the copy parameters of the plurality of copies of the target video, and the CDN control node may determine whether there is a target video in the copy parameters of the plurality of copies.
  • the copy parameter with the exact same parameters, if any, determines the copy with the copy parameter as the target copy; if not, the copy corresponding to the copy parameter that is closer to the target video parameter can be selected as the target copy.
  • the storage address of the target copy can be sent to the VOG.
  • the VOG may obtain the target copy from the server corresponding to the corresponding CDN service node according to the storage address.
  • the VOG sends the acquired target copy as a video stream to the UE in response to the UE's video request.
  • FIG. 6 is an interaction diagram of a video distribution method according to another embodiment of the present invention.
  • S601 video request.
  • the UE initiates a video request for the target video to the VOG, where the request carries the URL of the target video, or other tag that uniquely identifies the target video.
  • the video request may also carry the identifier of the UE, such as IMSI, MSIN, IMEI, and the like.
  • the VOG determines the video popularity information of the target video based on the number of times the video request for the target video is received. It should be understood that in addition to the target video, the VOG may also count other video popularity information that is requested or requested. After the statistics are completed, the video heat information is reported to the CDN control node.
  • the CDN control node may summarize the video heat information reported by each VOG, and determine at least one hotspot video, for example, determine the N videos with the highest number of video request times as the hotspot video.
  • the determined at least one hotspot video is sent to the VOG, or the storage address of the hotspot video is sent to the VOG to obtain the hotspot video from the corresponding CDN service node with the VOG.
  • the VOG caches the hotspot video locally and then provides the video directly to the user upon receiving subsequent requests for the hotspot video.
  • the video optimization gateway VOG 70 of Fig. 7 includes an acquisition unit 71 and a determination unit 72.
  • the obtaining unit 71 acquires the determination information of the UE when the VOG 70 receives the video request for the target video sent by the user equipment UE, where the determination information includes at least one of user subscription information, terminal capability information, and current network state information of the UE.
  • the determining unit 72 determines the target video parameter for the UE according to the determination information, wherein the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type; the obtaining unit 71 distributes the content according to the target video parameter.
  • the network CDN control node acquires a storage address of the target copy in the plurality of copies of the target video; the obtaining unit 71 acquires the target copy according to the storage address.
  • the embodiment of the present invention determines the target video parameter for the user equipment by using the video optimization gateway VOG 70, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition. To be able to mitigate Video traffic pressure on mobile broadband networks to enhance the user experience.
  • the video request includes the identifier of the UE
  • the obtaining unit 71 is configured to: determine user subscription information and terminal capability information of the UE according to the identifier of the UE, and determine current network state information.
  • the acquiring unit 71 of the VOG 70 may obtain the user subscription information and the terminal capability information by using the identifier of the UE carried in the video request, and the identifier of the UE may be IMSI, MSIN, IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by the UE reporting, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report, or obtained by the core network, to indicate the current smoothness, congestion level or load status of the network.
  • the determining unit 72 is specifically configured to determine a target video parameter for the UE according to the determination information acquired by the obtaining unit 71.
  • the determining unit 72 of the VOG 70 may determine, according to the user subscription information and the terminal capability information, a maximum resolution, a frame rate, a code rate, and a codec type supported by the UE, and may also have a video file type supported by the UE. . Further, the determining unit 72 of the VOG 70 can finally determine the resolution, the frame rate, the code rate, and the codec type as the target video parameters based on the current network state information.
  • the video request includes a uniform resource locator URL of the target video
  • the VOG 70 further includes a sending unit 73 and a receiving unit 74, where the sending unit 73 is configured to: send the URL to the CDN control node; Receiving a copy parameter of each copy of the plurality of copies of the target video sent by the CDN control node according to the URL, wherein the copy parameter of each copy At least one of resolution, frame rate, code rate, codec type, and storage address of each copy is included.
  • the VOG 70 can forward the video request to the CDN control node.
  • the CDN control node may determine the copy parameters of the multiple copies of the target video pointed to by the URL according to the URL carried in the video request. Specifically, since each copy of the target video is stored on a server corresponding to a plurality of different CDN service nodes, the CDN control node may summarize the copy parameters of the plurality of copies and send them to the VOG 70.
  • the copy parameters of different copies may be completely different or partially different.
  • two copies with the same resolution, frame rate, code rate, and codec type may be stored in different addresses, or multiple copies may be stored in the same storage address.
  • frame rate, code rate, codec different copies, and so on may be completely different or partially different.
  • the multiple copy parameters summarized by the CDN control node may be the copy parameters of all the copies of the target video, or may be the copy parameters of the partial copy, which is not limited by the present invention.
  • the determining unit 72 is specifically configured to: determine, according to a copy parameter of each copy, a target copy that matches the target video parameter; and determine a storage address of the target copy.
  • the determining unit 72 of the VOG 70 may determine, in the copy parameters of the plurality of copies, a copy corresponding to the copy parameter matching the target video parameter determined by the VOG 70, and Make sure the copy is the target copy.
  • VOG VOG
  • the target video parameters can be selected. Close to the copy parameters. After the target copy is determined, its storage address can be directly determined according to the copy parameter of the target copy.
  • the VOG 70 includes a sending unit 73 and a receiving unit 74, where the sending unit 73 is configured to: send a request message carrying a URL and a target video parameter to the CDN control node, so as to facilitate the target indicated by the CDN node at the URL.
  • a target copy matching the target video parameter is determined in the plurality of copies of the video, and the storage address of the target copy is determined;
  • the receiving unit 74 is configured to receive the storage address of the target copy sent by the CDN control node.
  • the VOG 70 may send the URL and the target video parameter to the CDN control node through the sending unit 73, and the CDN control node has multiple copies of the target video.
  • the copy parameter that matches the target video parameter is determined in the copy parameter, and similarly, the CDN control node can determine the duplicate of the multiple copies. Is there any copy parameter in this parameter that is identical to the target video parameter, and if so, the storage address in the copy parameter is sent to VOG 70; if not, the copy parameter closer to the target video parameter can be selected and stored The address is sent to VOG 70.
  • the obtaining unit 71 is specifically configured to: read a target copy from a server corresponding to the CDN node pointed to by the storage address; and the sending unit 73 is further configured to: send the target copy to the UE.
  • the VOG 70 may obtain the target copy from the server corresponding to the corresponding CDN service node according to the storage address.
  • the VOG 70 further includes a statistic unit, where the statistic unit is configured to: categorize video heat information of the target video according to the received video request; and send the video heat information to the CDN control node by using the sending unit 73.
  • the CDN control node aggregates the video heat information of the plurality of videos reported by the VOG, and determines at least one hotspot video.
  • the obtaining unit 71 is further configured to acquire at least one hotspot video from the CDN control node, and cache at least one hotspot video.
  • the VOG 70 may determine the video heat information according to the number of times the video request for the target video is received, and the CDN control node may summarize the video heat information of the plurality of videos, and determine at least one video with the highest video heat, for example, determine the number of video requests.
  • the top N videos are hot videos.
  • the determined at least one hotspot video is buffered to the VOG 70 to provide video directly to the user when the VOG 70 receives a subsequent request for the hotspot video.
  • the embodiment of the present invention determines the target video parameter for the user equipment by using the video optimization gateway VOG 70, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition. Therefore, the video traffic pressure of the mobile broadband network can be alleviated and the user experience can be improved.
  • FIG. 8 is a schematic block diagram of a content distribution network control node in accordance with one embodiment of the present invention.
  • the CDN control node 80 of Fig. 8 includes a receiving unit 81 and a transmitting unit 82.
  • the receiving unit 81 receives the request message for the target video sent by the video optimization gateway VOG; the sending unit 82 sends the copy information of the target video to the VOG according to the request message, so that the VOG obtains the target copy of the target video according to the copy information.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • the VOG receives the video request for the target video sent by the user equipment UE, the VOG may forward the request message to the CDN control node 80 or after processing and send it to the CDN control node 80.
  • the request message carries the URL of the target video requested by the UE, and the request message may further carry the target video parameter determined by the VOG for the UE.
  • the request message for the target video includes a uniform resource locator URL of the target video
  • the CDN control node 80 further includes a determining unit 83, where the determining unit 83 is specifically configured to: determine, according to the URL, multiple target videos.
  • the copy parameter of each copy includes at least one of a resolution, a frame rate, a code rate, a codec type, and a storage address of each copy; and the sending unit 82 transmits the VOG to the VOG Copy parameters of each copy in the copy, so that the VOG determines the storage address of the target copy matching the target video parameter according to the copy parameter of each copy, and reads the target copy from the server corresponding to the CDN node pointed to by the storage address, wherein
  • the target video parameter is determined by the VOG according to at least one of user subscription information, terminal capability information, and current network state information of the user equipment UE that initiates the video request, where the target video parameter includes a resolution, a frame rate, a code rate, and a codec type. At least one of them.
  • the VOG may forward the request message to the CDN control node 80.
  • the CDN edge node connected to the VOG can ultimately forward the video request to the CDN control node 80 through the CDN system.
  • the CDN control node 80 can determine the copy parameters of the plurality of copies of the target video pointed to by the URL according to the URL carried in the video request.
  • the CDN control node 80 may summarize the copy parameters of the plurality of copies and then transmit them to the VOG through the transmitting unit 82.
  • the copy parameters of different copies may be completely different or partially different.
  • two copies with the same resolution, frame rate, code rate, and codec type may be stored in different addresses, or multiple copies may be stored in the same storage address. , frame rate, code rate, codec different copies, and so on.
  • the plurality of copy parameters summarized by the CDN control node 80 may be a copy parameter of all copies of the target video, or may be a copy parameter of the partial copy, which is not limited in the present invention.
  • the VOG may determine the target video parameter for the UE according to the determination information, and the determination information is obtained by the VOG, including the user subscription information, the terminal capability information, and the network status information. At least one type, wherein the user subscription information and the terminal capability information are obtained by using the identifier of the UE carried in the video request.
  • the identifier of the UE may be an IMSI, an MSIN, an IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by the UE, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report, or obtained by the core network, to indicate the current smoothness, congestion level or load status of the network.
  • the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE can be determined according to the user subscription information and the terminal capability information, and the video file type supported by the UE can also be used. Further, the VOG may finally determine the resolution, the frame rate, the code rate, and the codec type as the target video parameters according to the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion.
  • the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the parameters are It does not fall below the range and guarantees the user experience for some high-priority users.
  • the VOG may determine, in the copy parameters of the plurality of copies, a copy corresponding to the copy parameter matching the target video parameter determined by the VOG, and determine the copy as the target.
  • a copy Specifically, the VOG may first determine whether there are duplicate parameters of the copy parameters of the multiple copies that are identical to the target video parameters, and if yes, directly determine that the corresponding copy of the same copy parameter is the target copy; if not, the target and the target may be selected. Video parameters are closer to the copy parameters. After the target copy is determined, its storage address can be determined directly based on the copy parameters of the target copy.
  • the request message for the target video includes a uniform resource locator URL of the target video and a target video parameter of the user equipment UE determined by the VOG for initiating the video request, where the target video parameter is determined by the VOG according to the UE. Determining at least one of user subscription information, terminal capability information, and current network state information, target video parameters including resolution, frame At least one of rate, code rate, codec type.
  • the VOG may determine the target video parameter for the UE according to the determination information, and the determination information is obtained by the VOG, and includes at least one of user subscription information, terminal capability information, and network state information, where the user
  • the subscription information and the terminal capability information may be obtained by using the identifier of the UE carried in the video request, and the identifier of the UE may be an IMSL MSIN, an IMEI, or the like.
  • the VOG may be obtained from a server that stores user information according to the identifier of the UE, and the user subscription information may include a user priority (eg, a VIP user, a normal user, etc.), an acceptable QoS, a code rate that is allowed to be provided, and a codec. Type and more.
  • the terminal capability information may be obtained by reporting by the UE, or may be obtained by using the identifier of the UE.
  • the terminal capability information may indicate the maximum resolution, the frame rate, the codec type, and the video file type of the video supported by the UE.
  • the network status information can be obtained through the wireless side report or the core network to indicate the current smoothness, congestion level or load status of the network.
  • the target video parameter for the UE is determined by the VOG according to the determination information.
  • the VOG may determine the maximum resolution, the frame rate, the code rate, and the codec type supported by the UE, according to the user subscription information and the terminal capability information. There may be video file types supported by the UE.
  • the VOG can finally determine the resolution, frame rate, code rate, and codec type as the target video parameters based on the current network state information. For example, if the current network status is poor and the load is high, the VOG can be reduced by one or more based on the maximum resolution, frame rate, and code rate that the UE can accept, so as to reduce the pressure on the network video traffic and prevent further. Congestion.
  • the VOG may also determine the resolution, the frame rate, the range of the code rate, and the codec type according to the user subscription information and the terminal capability information. The VOG further determines the above parameters according to the network state information, and when the network state is poor, the above parameters It does not fall below the range and guarantees the user experience for some high-priority users.
  • the CDN control node 80 further includes a determining unit 83, configured to: determine, in the plurality of copies of the target video indicated by the URL, a target copy that matches the target video parameter, and determine the target copy. Storage address; the storage address of the target copy is sent to the VOG by the transmitting unit 82, so that the VOG reads the target copy from the server corresponding to the CDN node pointed to by the storage address.
  • the VOG may send the URL for the target video and the target video parameters for the UE to the CDN control node 80.
  • Target video by CDN control node 80 A copy parameter matching the target video parameter is determined in the copy parameter of the plurality of copies, similarly,
  • the CDN control node may determine whether there are copy parameters of the copy parameters of the plurality of copies that are identical to the target video parameters, and if so, send the storage address in the copy parameter to the VOG; if not, the target video parameter may be selected.
  • the close copy parameter is sent to the VOG, so that the VOG obtains the target copy from the server corresponding to the corresponding CDN service node according to the storage address.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • FIG. 9 is a schematic block diagram of a video optimization gateway according to another embodiment of the present invention.
  • the video optimization gateway 90 of Figure 9 includes a processor 91 and a memory 92.
  • the processor 91 and the memory 92 are connected by a bus system 93.
  • the memory 92 is configured to store an instruction that causes the processor 91 to: obtain the determination information of the UE when the video request for the target video sent by the user equipment UE is received, where the determination information includes the user subscription information of the UE, and the terminal capability information. And at least one of current network state information; determining a target video parameter for the UE according to the determination information, wherein the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type; according to the target video parameter
  • the content distribution network CDN control node acquires a storage address of the target copy in the plurality of copies of the target video; and acquires the target copy according to the storage address.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • video optimization gateway 90 may also include transmit circuitry 94, receive circuitry 95, and the like.
  • the processor 91 controls the operation of the video optimization gateway 90, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 92 can include read only memory and random access memory and provides instructions and data to processor 91.
  • a portion of memory 92 may also include non-volatile random access memory (NVRAM).
  • the various components of the video optimization gateway 90 are coupled together by a bus system 93, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. But for the sake of clarity, in the picture Various buses are labeled as bus system 93.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 91 or implemented by the processor 91.
  • the processor 91 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method may be completed by the integrated logic circuit of the hardware in the processor 91 or the instruction in the form of software.
  • the processor 91 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present invention may be directly embodied by the execution of the hardware decoding processor or by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as a random access memory, a flash memory, a read only memory, a programmable read only memory, or an electrically erasable programmable memory, a register, or the like.
  • the storage medium is located in the memory 92, and the processor 91 reads the information in the memory 92 and combines the hardware to perform the steps of the above method.
  • the video request includes an identifier of the UE, and the processor 91 is configured according to
  • the identity of the UE determines the subscriber subscription information and terminal capability information of the UE, and determines the current network state information.
  • the video request includes a uniform resource locator URL of the target video, before the VOG acquires a storage address of the target copy in the plurality of copies of the target video from the content distribution network CDN control node according to the target video parameter,
  • the processor 91 transmits a URL to the CDN control node through the transmitting circuit 94; and receives, by the receiving circuit 95, a copy parameter of each of the plurality of copies of the target video transmitted by the CDN control node according to the URL, wherein the copy parameters of each copy include each At least one of a resolution, a frame rate, a code rate, a codec type, and a storage address of the copy.
  • the VOG acquires, from the content distribution network CDN control node, the storage address of the target copy in the plurality of copies of the target video according to the target video parameter, where: the processor 91 determines, according to the copy parameter of each copy. The target copy of the target video parameter matches; the storage address of the target copy is determined.
  • the VOG acquires a storage address of the target copy in the plurality of copies of the target video from the content distribution network CDN control node according to the target video parameter, including: sending, by using the transmitting circuit 94, the carrying URL and the CDN control node a request message of the target video parameter, so that the CDN node determines the target video parameter in multiple copies of the target video indicated by the URL A matching target copy, and determining a storage address of the target copy; receiving, by the receiving circuit 95, a storage address of the target copy sent by the CDN control node.
  • the VOG acquires a target copy according to the storage address, and the processor 91 reads the target copy from the server corresponding to the CDN node pointed to by the storage address by the receiving circuit 95. After the VOG obtains the target copy according to the storage address, the VOG further includes : The target copy is sent to the UE via the transmit circuit 94.
  • the processor 91 collects video heat information of the target video according to the received video request, and sends the video heat information to the CDN control node through the transmitting circuit 94, so that the CDN control node aggregates the VOG report.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • FIG. 10 is a schematic block diagram of a content distribution network control node according to another embodiment of the present invention.
  • the content distribution network control node 100 of FIG. 5 includes a processor 101 and a memory 102.
  • the processor 101 and the memory 102 are connected by a bus system 103.
  • the memory 102 is configured to store an instruction for causing the processor 101 to: receive a request message for the target video sent by the video optimization gateway VOG; and send the copy information of the target video to the VOG according to the request message, so that the VOG obtains the target video according to the copy information. A copy of the target.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • the CDN control node 100 may further include a transmitting circuit 104, a receiving circuit 105, an antenna 106, and the like.
  • the processor 101 controls the operation of the CDN control node 100, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 102 can include read only memory and random access memory and provides instructions and data to processor 101. A portion of the memory 102 may also include non-volatile random access memory (NVRAM).
  • the various components of the CDN control node 100 are coupled together by a bus system 103, wherein the bus system 103 includes a number In addition to the bus, a power bus, a control bus, a status signal bus, and the like can also be included. However, for clarity of description, various buses are labeled as the bus system 103 in the figure.
  • Processor 101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 101 or an instruction in the form of software.
  • the processor 101 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by the hardware decoding processor, or by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 102, and the processor 101 reads the information in the memory 102 and, in conjunction with its hardware, performs the steps of the above method.
  • the request message for the target video includes a uniform resource locator URL of the target video
  • the CDN control node 100 sends the copy information of the target video to the VOG according to the request message, where: the processor 101 determines the target according to the URL.
  • a copy parameter of each of the plurality of copies of the video wherein the copy parameter of each copy includes at least one of a resolution, a frame rate, a code rate, a codec type, and a storage address of each copy; Transmitting a copy parameter of each of the plurality of copies to the VOG, so that the VOG determines a storage address of the target copy matching the target video parameter according to the copy parameter of each copy, and reads from a server corresponding to the CDN node pointed to by the storage address a target copy, wherein the target video parameter is determined by the VOG according to at least one of user subscription information, terminal capability information, and current network state information of the user equipment UE that initiates the video request, where the target video parameters include resolution, frame rate, and code rate, At least one of the codec types.
  • the request message for the target video includes a uniform resource locator URL of the target video and a target video parameter of the user equipment UE determined by the VOG for initiating the video request, where the target video parameter is determined by the VOG according to the UE.
  • the at least one of the user subscription information, the terminal capability information, and the current network state information determines that the target video parameter includes at least one of a resolution, a frame rate, a code rate, and a codec type.
  • the CDN control node 100 sends the copy information of the target video to the V0G according to the request message, and the processor 101 is configured to: determine, in the multiple copies of the target video indicated by the URL, the target that matches the target video parameter. Copying, and determining the storage address of the target copy; transmitting the storage address of the target copy to the VOG through the transmitting circuit 94, so that the VOG reads the target copy from the server corresponding to the CDN node pointed to by the storage address.
  • the embodiment of the present invention determines a target video parameter for the user equipment by using the video optimization gateway, and obtains a suitable target copy from the CDN system according to the target video parameter, and sends the video copy to the user according to the current network condition, thereby providing the user with a video copy that meets the user's needs according to the current network condition. It can reduce the pressure of video traffic on mobile broadband networks and improve user experience.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct connection or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

提供一种视频分发方法、设备和系统,该方法包括:在视频优化网关VOG接收到用户设备UE发送的针对目标视频的视频请求时,获取UE的判定信息,其中判定信息包括UE的用户签约信息、终端能力信息和当前网络状态信息中的至少一种;VOG根据判定信息确定针对UE的目标视频参数,其中目标视频参数包括分辨率、帧率、码率、编解码类型中的至少一种;VOG根据目标视频参数从内容分发网络CDN控制节点获取目标视频的多个副本中的目标副本的存储地址;VOG根据存储地址获取目标副本。通过视频优化网关从CDN系统获取合适的目标副本发送给用户,根据当前网络状况为用户提供合适的视频副本,从而能够减轻移动宽带网络的视频流量压力,提高用户体验。

Description

视频分发方法、 设备和系统 技术领域
本发明涉及信息技术领域, 并且更具体地, 涉及一种视频分发方法、 设 备和系统。 背景技术
第三代合作伙伴计划( 3rd Generation Partnership Project, 3GPP )组织提 出了演进的分组系统( Evolved Packet System, EPS ), 旨在扁平化网络结构, 减少网络层次, 兼容多种无线接入技术, 提供更高速的无线接入速度, 满足 用户对宽带化、 移动化不断增长的需求。 大驱动力, 目前整体移动数据流量中的大部分被移动视频流量占据, 并且移 动视频流量的比例仍将继续上升。 由于无线通信存在局限性, 例如无线接入 网络带宽稳定性差、 频谱资源瓶颈、 多用户共享有限资源等等, 移动网络运 营商将面临迅速攀升的视频流量的冲击, 对用户体验以及网络容量造成挑 战。
移动宽带网络与内容分发网络( Content Delivery Network, CDN ) 的结 合可以緩解上述视频应用带来的流量压力。 CDN 可以将热点视频内容或者 有合作关系的内容提供商提供的视频事先緩存在离用户较近的视频緩存节 点, 并且 CDN系统能够将用户的请求重新导向离用户最近的服务节点上, 使用户可以就近取得所需内容, 解决网络拥挤的状况。 CDN 系统仅仅使得 用户选取就近节点获取视频副本, 然而在网络质量不佳或网络拥塞的情况下 仍然选取就近节点緩存的视频副本时, 可能会导致网络状况的进一步恶化, 影响用户体验。 发明内容
本发明实施例提供一种视频分发方法、设备和系统, 能够根据当前网络 状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带网络的视 频流量压力, 提高用户体验。
第一方面, 提供了一种视频分发方法, 包括: 在视频优化网关 VOG接 收到用户设备 UE发送的针对目标视频的视频请求时, 获取所述 UE的判定 信息, 其中所述判定信息包括所述 UE的用户签约信息、 终端能力信息和当 前网络状态信息中的至少一种; 所述 VOG根据所述判定信息确定针对所述 UE 的目标视频参数, 其中所述目标视频参数包括分辨率、 帧率、 码率、 编 解码类型中的至少一种; 所述 VOG根据所述目标视频参数从内容分发网络 CDN控制节点获取所述目标视频的多个副本中的目标副本的存储地址; 所 述 VOG根据所述存储地址获取所述目标副本。
结合第一方面, 在第一方面的第一种实现方式中, 所述视频请求包括所 述 UE的标识, 所述获取所述 UE的判定信息包括: 根据所述 UE的标识确 定所述 UE的用户签约信息和终端能力信息,并且确定当前的网络状态信息。
结合第一方面及其上述实现方式, 在第一方面的第二种实现方式中, 所 述视频请求包括所述目标视频的统一资源定位符 URL, 在所述 VOG根据所 述目标视频参数从内容分发网络 CDN控制节点获取所述目标视频的多个副 本中的目标副本的存储地址之前, 所述方法还包括: 向所述 CDN控制节点 发送所述 URL; 接收所述 CDN控制节点根据所述 URL发送的所述目标视 频的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数包括所 述每个副本的分辨率、 帧率、 码率、 编解码类型和存储地址中的至少一种。
结合第一方面及其上述实现方式, 在第一方面的第三种实现方式中, 所 述 VOG根据所述目标视频参数从内容分发网络 CDN控制节点获取所述目标 视频的多个副本中的目标副本的存储地址, 包括: 根据所述每个副本的副本 参数确定与所述目标视频参数匹配的目标副本; 确定所述目标副本的存储地 址。
结合第一方面及其上述实现方式, 在第一方面的第四种实现方式中, 所 述 VOG根据所述目标视频参数从内容分发网络 CDN控制节点获取所述目标 视频的多个副本中的目标副本的存储地址, 包括: 向所述 CDN控制节点发 送携带所述 URL和所述目标视频参数的请求消息,以便于所述 CDN节点在 所述 URL指示的所述目标视频的多个副本中确定与所述目标视频参数匹配 的目标副本, 并确定所述目标副本的存储地址; 接收所述 CDN控制节点发 送的所述目标副本的存储地址。
结合第一方面及其上述实现方式, 在第一方面的第五种实现方式中, 所 述 VOG根据所述存储地址获取所述目标副本, 包括: 从所述存储地址指向 的 CDN节点对应的服务器读取所述目标副本;所述 VOG根据所述存储地址 获取所述目标副本之后, 还包括: 向所述 UE发送所述目标副本。
结合第一方面及其上述实现方式, 在第一方面的第六种实现方式中, 所 述方法还包括:根据接收到的视频请求,统计所述目标视频的视频热度信息; 向所述 CDN控制节点发送所述视频热度信息,以便于所述 CDN控制节点汇 总 VOG上报的多个视频的视频热度信息, 并确定至少一个热点视频; 从所 述 CDN控制节点获取所述至少一个热点视频, 并緩存所述至少一个热点视 频。
第二方面, 提供了一种视频分发方法, 包括: 内容分发网络 CDN控制 节点接收视频优化网关 VOG发送的针对目标视频的请求消息;所述 CDN控 制节点根据所述请求消息向所述 VOG发送所述目标视频的副本信息, 以便 于所述 VOG根据所述副本信息获取所述目标视频的目标副本。
结合第二方面, 在第二方面的第一种实现方式中, 所述针对目标视频的 请求消息包括所述目标视频的统一资源定位符 URL, 所述 CDN控制节点根 据所述请求消息向所述 VOG发送所述目标视频的副本信息, 包括: 根据所 述 URL确定所述目标视频的多个副本中每个副本的副本参数, 其中所述每 个副本的副本参数包括所述每个副本的分辨率、 帧率、 码率、 编解码类型和 存储地址中的至少一种; 向所述 VOG发送所述多个副本中每个副本的副本 参数, 以便于所述 VOG根据所述每个副本的副本参数确定与目标视频参数 匹配的目标副本的存储地址, 并且从所述存储地址指向的 CDN节点对应的 服务器读取所述目标副本, 其中所述目标视频参数由所述 VOG根据发起视 频请求的用户设备 UE的用户签约信息、 终端能力信息和当前网络状态信息 中的至少一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类 型中的至少一种。
结合第二方面及其上述实现方式, 在第二方面的第二种实现方式中, 所 述针对目标视频的请求消息包括所述目标视频的统一资源定位符 URL和所 述 VOG确定的针对发起视频请求的用户设备 UE的目标视频参数, 其中所 述目标视频参数由所述 VOG根据所述 UE的用户签约信息、 终端能力信息 和当前网络状态信息中的至少一种确定, 所述目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种。
结合第二方面及其上述实现方式, 在第二方面的第三种实现方式中, 所 述 CDN控制节点根据所述请求消息向所述 VOG发送所述目标视频的副本信 息, 包括: 在所述 URL指示的所述目标视频的多个副本中确定与所述目标 视频参数匹配的目标副本, 并确定所述目标副本的存储地址; 向所述 VOG 发送所述目标副本的存储地址, 以便于所述 VOG从所述存储地址指向的 CDN节点对应的服务器读取所述目标副本。
第三方面, 提供了一种视频优化网关, 包括: 获取单元, 用于在所述视 频优化网关 VOG接收到用户设备 UE发送的针对目标视频的视频请求时, 获取所述 UE的判定信息,其中所述判定信息包括所述 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至少一种; 确定单元, 用于才艮据所述 判定信息确定针对所述 UE的目标视频参数, 其中所述目标视频参数包括分 辨率、 帧率、 码率、 编解码类型中的至少一种; 所述获取单元还用于根据所 述目标视频参数从内容分发网络 CDN控制节点获取所述目标视频的多个副 本中的目标副本的存储地址; 所述获取单元还用于根据所述存储地址获取所 述目标副本。
结合第三方面, 在第三方面的第一种实现方式中, 所述视频请求包括所 述 UE的标识, 所述获取单元具体用于: 根据所述 UE的标识确定所述 UE 的用户签约信息和终端能力信息, 并且确定当前的网络状态信息。
结合第三方面及其上述实现方式, 在第三方面的第二种实现方式中, 所 述视频请求包括所述目标视频的统一资源定位符 URL, 所述 VOG还包括发 送单元和接收单元, 所述发送单元用于: 向所述 CDN控制节点发送所述 URL;所述接收单元用于接收所述 CDN控制节点根据所述 URL发送的所述 目标视频的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数 包括所述每个副本的分辨率、 帧率、 码率、 编解码类型和存储地址中的至少 一种。
结合第三方面及其上述实现方式, 在第三方面的第三种实现方式中, 所 述确定单元具体用于: 根据所述每个副本的副本参数确定与所述目标视频参 数匹配的目标副本; 确定所述目标副本的存储地址。
结合第三方面及其上述实现方式, 在第三方面的第四种实现方式中, 所 述 VOG还包括发送单元和接收单元,所述发送单元用于: 向所述 CDN控制 节点发送携带所述 URL和所述目标视频参数的请求消息, 以便于所述 CDN 节点在所述 URL指示的所述目标视频的多个副本中确定与所述目标视频参 数匹配的目标副本, 并确定所述目标副本的存储地址; 所述接收单元用于: 接收所述 CDN控制节点发送的所述目标副本的存储地址。
结合第三方面及其上述实现方式, 在第三方面的第五种实现方式中, 所 述获取单元具体用于: 从所述存储地址指向的 CDN节点对应的服务器读取 所述目标副本; 所述发送单元还用于: 向所述 UE发送所述目标副本。
结合第三方面及其上述实现方式, 在第三方面的第六种实现方式中, 所 述 VOG还包括统计单元和发送单元, 所述统计单元用于: 根据接收到的视 频请求,统计所述目标视频的视频热度信息;通过所述发送单元向所述 CDN 控制节点发送所述视频热度信息,以便于所述 CDN控制节点汇总 VOG上报 的多个视频的视频热度信息, 并确定至少一个热点视频; 所述获取单元还用 于: 从所述 CDN控制节点获取所述至少一个热点视频, 并緩存所述至少一 个热点视频。
第四方面, 提供了一种内容分发网络控制节点, 包括: 接收单元, 用于 接收视频优化网关 VOG发送的针对目标视频的请求消息; 发送单元, 用于 根据所述请求消息向所述 VOG发送所述目标视频的副本信息, 以便于所述 VOG根据所述副本信息获取所述目标视频的目标副本。
结合第四方面, 在第四方面的第一种实现方式中, 所述针对目标视频的 请求消息包括所述目标视频的统一资源定位符 URL, 所述 CDN控制节点还 包括确定单元, 所述确定单元具体用于: 根据所述 URL确定所述目标视频 的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数包括所述 每个副本的分辨率、 帧率、 码率、 编解码类型和存储地址中的至少一种; 通 过所述发送单元向所述 VOG发送所述多个副本中每个副本的副本参数, 以 便于所述 VOG根据所述每个副本的副本参数确定与目标视频参数匹配的目 标副本的存储地址, 并且从所述存储地址指向的 CDN节点对应的服务器读 取所述目标副本, 其中所述目标视频参数由所述 VOG根据发起视频请求的 用户设备 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至少 一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型中的至 少一种。
结合第四方面及其上述实现方式, 在第四方面的第二种实现方式中, 所 述针对目标视频的请求消息包括所述目标视频的统一资源定位符 URL和所 述 VOG确定的针对发起视频请求的用户设备 UE的目标视频参数, 其中所 述目标视频参数由所述 VOG根据所述 UE的用户签约信息、 终端能力信息 和当前网络状态信息中的至少一种确定, 所述目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种。
结合第四方面及其上述实现方式, 在第四方面的第三种实现方式中, 所 述 CDN控制节点还包括确定单元, 所述确定单元用于: 在所述 URL指示的 所述目标视频的多个副本中确定与所述目标视频参数匹配的目标副本, 并确 定所述目标副本的存储地址; 通过所述发送单元向所述 VOG发送所述目标 副本的存储地址,以便于所述 VOG从所述存储地址指向的 CDN节点对应的 服务器读取所述目标副本。
第五方面, 提供了一种视频分发系统, 包括: 视频优化网关 VOG和内 容分发网络 CDN控制节点,所述 VOG用于在接收到用户设备 UE发送的针 对目标视频的视频请求时, 获取所述 UE的判定信息, 其中所述判定信息包 括所述 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至少一 种; 根据所述判定信息确定针对所述 UE的目标视频参数, 其中所述目标视 频参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种; 根据所述目标 视频参数从所述 CDN控制节点获取所述目标视频的多个副本中的目标副本 的存储地址;根据所述存储地址获取所述目标副本;所述内容分发网络 CDN 控制节点用于接收所述 VOG发送的针对所述目标视频的请求消息; 根据所 述请求消息向所述 VOG发送所述目标视频的副本信息, 以便于所述 VOG 根据所述副本信息获取所述目标视频的目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对本发明实施例中 所需要使用的附图作简单地介绍, 显而易见地, 下面所描述的附图仅仅是本 发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的 前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明一个实施例的网络架构图。 图 2是本发明一个实施例的视频分发方法的流程图。
图 3是本发明一个实施例的视频分发方法的流程图。
图 4是本发明一个实施例的视频分发方法的交互图。
图 5是本发明另一实施例的视频分发方法的交互图。
图 6是本发明另一实施例的视频分发方法的交互图。
图 7是本发明一个实施例的视频优化网关的示意框图。
图 8是本发明一个实施例的内容分发网络控制节点的示意框图。
图 9是本发明另一实施例的视频优化网关的示意框图。
图 10是本发明另一实施例的内容分发网络控制节点的示意框图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明的一部分实施例, 而不 是全部实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创 造性劳动的前提下所获得的所有其他实施例, 都应属于本发明保护的范围。
本发明的技术方案, 可以应用于各种通信系统, 例如: 全球移动通讯系 统 ( GSM , Global System of Mobile communication ), 码分多址 ( CDMA, Code Division Multiple Access ) 系统, 宽带码分多址( WCDMA, Wideband Code Division Multiple Access Wireless ),通用分组无线业务 ( GPRS, General Packet Radio Service ), 长期演进 ( LTE, Long Term Evolution )等。
用户设备 ( UE, User Equipment ), 也可称之为移动终端 ( Mobile Terminal ),移动用户设备等, 可以经无线接入网(例如, RAN, Radio Access Network ) 与一个或多个核心网进行通信, 用户设备可以是移动终端, 如移 动电话(或称为"蜂窝"电话)和具有移动终端的计算机, 例如, 可以是便携 式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置, 它们与无线接入 网交换语言和 /或数据。
基站,可以是 GSM或 CDMA中的基站( BTS, Base Transceiver Station ), 也可以是 WCDMA中的基站( NodeB ),还可以是 LTE中的演进型基站( eNB 或 e-NodeB, evolutional Node B ), 本发明并不限定, 但为描述方便, 下述实 施例以 Node B为例进行说明。
图 1是本发明一个实施例的网络架构图。 如图 1所示, EPS系统可以包括基站(以 eNB为例)、服务网关( Serving Gateway, SGW )、 分组数据网关 ( Packet Data Network Gateway, PGW )、 移动管理实体 ( Mobility Management Entity, MME )、 策略和计费规则功能 实体 ( Policy and Charging Rule Function, PCRF )组成, 核心网侧的业务优 化网关, 例如视频优化网关 (Video Optimization Gateway, VOG ), 可以作 为一个逻辑功能模块集成在分组数据网关内, 也可以作为一个独立设备部 署, 在作为独立设备部署时, 可以通过 Sgi接口与分组数据网关相连, 提供 视频緩存和优化处理。
内容分发网络( Content Delivery Network, CDN )是构建在分组数据网 络(Packet Data Network, PDN )上的一种分布式的内容分发网。 CDN系统 可以包括多个服务节点, 和至少一个控制节点。 CDN控制节点可以利用全 局负载均衡技术将用户的访问指向距离用户最近的能够为用户提供相应服 务的 CDN服务节点,该 CDN服务节点对应于实际为用户提供内容的服务器。
VOG与 CDN之间开放接口, 具体地, 可以在搭建网络或维护网络时配 置 VOG与 CDN之间的接口, 或者为 VOG和 CDN建立逻辑通道, 使得两 者可以进行通信。 应理解, CDN为逻辑网络, VOG可以与 CDN的边缘节 点开放接口或建立逻辑通道, 以便于进行通信。
UE需要获取视频数据时, 可以向基站发起视频请求, 基站可以将视频 请求通过网关发送至 VOG, VOG根据该 UE的终端能力、 用户签约信息和 当前的网络状态确定要传输给该 UE的视频的分辨率、 帧率、 码率、 编解码 类型等参数。 VOG通过与 CDN之间的接口或逻辑通道, 根据确定的要传输 给 UE的视频的参数从 CDN获取合适的视频副本, 并传递给用户。
图 2是本发明一个实施例的视频分发方法的流程图。 图 2的方法可以由 视频优化网关 VOG执行。
201,在视频优化网关 VOG接收到用户设备 UE发送的针对目标视频的 视频请求时, 获取 UE的判定信息, 其中判定信息包括 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至少一种。
202, VOG根据判定信息确定针对 UE的目标视频参数, 其中目标视频 参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种。
203, VOG根据目标视频参数从内容分发网络 CDN控制节点获取目标 视频的多个副本中的目标副本的存储地址。 204, VOG根据存储地址获取目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
可选地, 作为一个实施例, 视频请求包括 UE的标识, 步骤 201包括: 根据 UE的标识确定 UE的用户签约信息和终端能力信息, 并且确定当前的 网络状态信息。
应理解, VOG在获取针对 UE的判定信息时,可以通过视频请求中携带 的 UE的标识来获取用户签约信息和终端能力信息, UE的标识可以为国际 移动用户识别码 ( International Mobile Subscriber Identification, IMSI )、 移动 用户识别号码( Mobile Subscriber Identification Number, MSIN )和国际移动 设备标识 ( International Mobile Equipment Identity, IMEI )等。 具体地, VOG 可以根据 UE的标识从存储有用户信息的服务器中获取, 用户签约信息可以 包括用户优先级(例如 VIP用户、普通用户等)、可接受的服务质量( Quality of Service, QoS ), 允许提供的码率、 编解码类型等等。 终端能力信息可以通 过 UE上报获取,也可以通过 UE的标识来获取,终端能力信息可以指示 UE 支持的视频的最大分辨率、 帧率、 编解码类型和视频文件类型等等。 网络状 态信息可以通过无线侧上报获取, 或者核心网获取, 以指示网络当前畅通、 拥塞程度或负载情况等。
可选地, 步骤 202, VOG根据判定信息确定针对 UE的目标视频参数。 具体地, VOG可以根据用户签约信息和终端能力信息确定 UE能接受的最大 分辨率、 帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支持的 视频文件类型。 进一步地, VOG可以根据当前的网络状态信息最终确定作 为目标视频参数的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络 状态较差, 负载较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码 率基础上降低一项或者多项, 以降低对网络视频流量的压力, 防止进一步拥 堵。 如果当前网络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码 率以及 UE支持的编解码类型确定为最终的目标视频参数, 以便于为用户提 供较高质量的视频, 提高用户体验。 此外, VOG也可以根据用户签约信息 和终端能力信息确定分辨率、 帧率、 码率的范围和编解码类型, VOG在近 一步根据网络状态信息确定上述参数, 并且网络状态较差时, 上述参数不会 降低到范围以下, 可以保证某些高优先级用户的用户体验。
可选地, 作为一个实施例, 视频请求包括目标视频的统一资源定位符
URL,在步骤 203之前,方法还包括:向 CDN控制节点发送 URL;接收 CDN 控制节点根据 URL发送的目标视频的多个副本中每个副本的副本参数, 其 中每个副本的副本参数包括每个副本的分辨率、 帧率、 码率、 编解码类型和 存储地址中的至少一种。
VOG在接收到视频请求后, 可以将该视频请求转发给 CDN控制节点。 应理解, 由于 CDN控制节点不一定与 VOG相连, 与 VOG相连的 CDN边 缘节点可以将视频请求通过 CDN系统最终转发给 CDN控制节点。 CDN控 制节点接收到视频请求后, 可以根据视频请求中携带的 URL确定该 URL指 向的目标视频的多个副本的副本参数。 具体地, 由于目标视频的各个副本存 储在多个不同的 CDN服务节点对应的服务器上, CDN控制节点可以汇总多 个副本的副本参数后发送至 VOG。 其中不同副本的副本参数可以完全不同 也可以部分不同, 例如分辨率、 帧率、 码率、 编解码类型完全相同的两个副 本可以存储在不同的地址, 或者同一存储地址存储有多个分辨率、 帧率、 码 率、 编解码各不相同的副本, 等等。 还应理解, CDN控制节点汇总的多个 副本参数可以为目标视频的所有副本的副本参数,也可以为部分副本的副本 参数, 本发明对此并不限定。
可选地, 作为一个实施例, 步骤 203包括: 根据每个副本的副本参数确 定与目标视频参数匹配的目标副本; 确定目标副本的存储地址。
在接收到 CDN控制节点发送的多个副本的副本参数后, VOG可以在上 述多个副本的副本参数中确定与 VOG确定的目标视频参数匹配的副本参数 对应的副本, 并确定该副本为目标副本。 具体地, VOG 首先可以确定多个 副本的副本参数中是否有与目标视频参数完全相同的副本参数, 如果有, 则 直接确定该相同的副本参数对应副本为目标副本; 如果没有, 可以选择与目 标视频参数较为接近的副本参数。 在确定目标副本后, 相应地可以根据该目 标副本的副本参数直接确定其存储地址。
可选地, 作为一个实施例, 步骤 203包括: 向 CDN控制节点发送携带 URL和目标视频参数的请求消息, 以便于 CDN节点在 URL指示的目标视 频的多个副本中确定与目标视频参数匹配的目标副本, 并确定目标副本的存 储地址; 接收 CDN控制节点发送的目标副本的存储地址。
具体地, 在 VOG根据获取的判定信息确定针对 UE的目标视频参数之 后, VOG可以将 URL和目标视频参数发送至 CDN控制节点, 由 CDN控制 节点在目标视频的多个副本的副本参数中确定与目标视频参数匹配的副本 参数, 类似地, CDN控制节点可以确定多个副本的副本参数中是否有与目 标视频参数完全相同的副本参数, 如果有, 则将该副本参数中的存储地址发 送给 VOG; 如果没有, 可以选择与目标视频参数较为接近的副本参数, 并 将存储地址发送给 VOG。
可选地, 作为一个实施例, 步骤 204包括: 从存储地址指向的 CDN节 点对应的服务器读取目标副本; VOG根据存储地址获取目标副本之后, 还 包括: 向 UE发送目标副本。
VOG在确定目标副本的存储地址或者从 CDN控制节点接收到目标副本 的存储地址后, 可以根据该存储地址从相应的 CDN服务节点对应的服务器 获取目标副本。
可选地, 作为一个实施例, 方法还包括: 根据接收到的视频请求, 统计 目标视频的视频热度信息;向 CDN控制节点发送视频热度信息,以便于 CDN 控制节点汇总 VOG上报的多个视频的视频热度信息, 并确定至少一个热点 视频; 从 CDN控制节点获取至少一个热点视频, 并緩存至少一个热点视频。
应理解, VOG可以根据接收到针对目标视频的视频请求的次数确定视 频热度信息, CDN控制节点可以汇总多个视频的视频热度信息, 从中确定 视频热度最高的至少一个视频,例如确定视频请求次数排名最高的 N个视频 为热点视频。 将确定的至少一个热点视频緩存至 VOG, 以便与 VOG在接收 到针对热点视频的后续请求时直接为用户提供视频。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
图 3是本发明一个实施例的视频分发方法的流程图。图 3的方法由 CDN 控制节点执行。
301, 内容分发网络 CDN控制节点接收视频优化网关 VOG发送的针对 目标视频的请求消息。 302, CDN控制节点根据请求消息向 VOG发送目标视频的副本信息, 以便于 VOG根据副本信息获取目标视频的目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
在 VOG接收到用户设备 UE发送的针对目标视频的视频请求时, VOG 可以将该请求消息转发至 CDN控制节点,或者经过处理后发送至 CDN控制 节点。 具体地, 该请求消息携带有 UE请求的目标视频的 URL, 该请求消息 还可以进一步携带 VOG确定的针对该 UE的目标视频参数。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL, CDN控制节点根据请求消息向 VOG发送目标视频的副 本信息, 包括: 根据 URL确定目标视频的多个副本中每个副本的副本参数, 其中每个副本的副本参数包括每个副本的分辨率、 帧率、 码率、 编解码类型 和存储地址中的至少一种; 向 VOG发送多个副本中每个副本的副本参数, 以便于 VOG根据每个副本的副本参数确定与目标视频参数匹配的目标副本 的存储地址,并且从存储地址指向的 CDN节点对应的服务器读取目标副本, 其中目标视频参数由 VOG根据发起视频请求的用户设备 UE的用户签约信 息、 终端能力信息和当前网络状态信息中的至少一种确定, 目标视频参数包 括分辨率、 帧率、 码率、 编解码类型中的至少一种。
VOG在接收到 UE发送的视频请求后, 可以将该请求消息转发给 CDN 控制节点。 应理解, 由于 CDN控制节点不一定与 VOG相连, 与 VOG相连 的 CDN边缘节点可以将视频请求通过 CDN系统最终转发给 CDN控制节点。 CDN控制节点接收到视频请求后, 可以根据视频请求中携带的 URL确定该 URL指向的目标视频的多个副本的副本参数。具体地, 由于目标视频的各个 副本存储在多个不同的 CDN服务节点对应的服务器上, CDN控制节点可以 汇总多个副本的副本参数后发送至 VOG。 其中不同副本的副本参数可以完 全不同也可以部分不同, 例如分辨率、 帧率、 码率、 编解码类型完全相同的 两个副本可以存储在不同的地址, 或者同一存储地址存储有多个分辨率、 帧 率、 码率、 编解码各不相同的副本, 等等。 还应理解, CDN控制节点汇总 的多个副本参数可以为目标视频的所有副本的副本参数,也可以为部分副本 的副本参数, 本发明对此并不限定。
在 CDN控制节点向 VOG发送目标视频的副本信息之前或者之后, VOG 可以根据判定信息确定针对 UE的目标视频参数, 判定信息由 VOG获取, 包括用户签约信息、 终端能力信息和网络状态信息中的至少一种, 其中用户 签约信息和终端能力信息可以通过视频请求中携带的 UE的标识来获取, UE 的标识可以为 IMSI、 MSIN和 IMEI等。 具体地, VOG可以根据 UE的标识 从存储有用户信息的服务器中获取, 用户签约信息可以包括用户优先级(例 如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解码类型 等等。 终端能力信息可以通过 UE上报获取, 也可以通过 UE的标识来获取, 终端能力信息可以指示 UE支持的视频的最大分辨率、 帧率、 编解码类型和 视频文件类型等等。 网络状态信息可以通过无线侧上报获取, 或者核心网获 取, 以指示网络当前畅通、 拥塞程度或负载情况等。 可以根据用户签约信息和终端能力信息确定 UE能接受的最大分辨率、帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支持的视频文件类型。 进一步地, VOG可以根据当前的网络状态信息最终确定作为目标视频参数 的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络状态较差, 负载 较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一 项或者多项, 以降低对网络视频流量的压力, 防止进一步拥堵。 如果当前网 络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持 的编解码类型确定为最终的目标视频参数, 以便于为用户提供较高质量的视 频, 提高用户体验。 此外, VOG也可以根据用户签约信息和终端能力信息 确定分辨率、 帧率、 码率的范围和编解码类型, VOG在近一步根据网络状 态信息确定上述参数,并且网络状态较差时,上述参数不会降低到范围以下, 可以保证某些高优先级用户的用户体验。
在接收到 CDN控制节点发送的多个副本的副本参数后, VOG可以在上 述多个副本的副本参数中确定与 VOG确定的目标视频参数匹配的副本参数 对应的副本, 并确定该副本为目标副本。 具体地, VOG 首先可以确定多个 副本的副本参数中是否有与目标视频参数完全相同的副本参数, 如果有, 则 直接确定该相同的副本参数对应副本为目标副本; 如果没有, 可以选择与目 标视频参数较为接近的副本参数。 在确定目标副本后, 相应地可以根据该目 标副本的副本参数直接确定其存储地址。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL和 VOG确定的针对发起视频请求的用户设备 UE的目标 视频参数, 其中目标视频参数由 VOG根据 UE的用户签约信息、 终端能力 信息和当前网络状态信息中的至少一种确定, 目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种。
在 VOG接收到 UE发送的视频请求后, VOG可以根据判定信息确定针 对 UE的目标视频参数, 判定信息由 VOG获取, 包括用户签约信息、 终端 能力信息和网络状态信息中的至少一种, 其中用户签约信息和终端能力信息 可以通过视频请求中携带的 UE的标识来获取, UE的标识可以为 IMSL MSIN 和 IMEI等。 具体地, VOG可以根据 UE的标识从存储有用户信息的服务器 中获取, 用户签约信息可以包括用户优先级(例如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解码类型等等。 终端能力信息可以通过 UE上报获取, 也可以通过 UE的标识来获取, 终端能力信息可以指示 UE 支持的视频的最大分辨率、 帧率、 编解码类型和视频文件类型等等。 网络状 态信息可以通过无线侧上报获取, 或者核心网获取, 以指示网络当前畅通、 拥塞程度或负载情况等。 针对 UE的目标视频参数由 VOG根据判定信息确 定,具体地, VOG可以根据用户签约信息和终端能力信息确定 UE能接受的 最大分辨率、 帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支 持的视频文件类型。 进一步地, VOG 可以根据当前的网络状态信息最终确 定作为目标视频参数的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前 网络状态较差, 负载较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一项或者多项, 以降低对网络视频流量的压力, 防止进一步 拥堵。 如果当前网络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持的编解码类型确定为最终的目标视频参数, 以便于为用户 提供较高质量的视频, 提高用户体验。 此外, VOG也可以根据用户签约信 息和终端能力信息确定分辨率、 帧率、 码率的范围和编解码类型, VOG在 近一步根据网络状态信息确定上述参数, 并且网络状态较差时, 上述参数不 会降低到范围以下, 可以保证某些高优先级用户的用户体验。
可选地, 作为一个实施例, CDN控制节点根据请求消息向 VOG发送目 标视频的副本信息, 包括: 在 URL指示的目标视频的多个副本中确定与目 标视频参数匹配的目标副本, 并确定目标副本的存储地址; 向 VOG发送目 标副本的存储地址,以便于 VOG从存储地址指向的 CDN节点对应的服务器 读取目标副本。
在目标视频参数确定后, VOG可以将针对目标视频的 URL和针对 UE 的目标视频参数发送至 CDN控制节点。由 CDN控制节点在目标视频的多个 副本的副本参数中确定与目标视频参数匹配的副本参数, 类似地, CDN控 制节点可以确定多个副本的副本参数中是否有与目标视频参数完全相同的 副本参数, 如果有, 则将该副本参数中的存储地址发送给 VOG; 如果没有, 可以选择与目标视频参数较为接近的副本参数, 并将存储地址发送给 VOG, 以便于 VOG根据该存储地址从相应的 CDN服务节点对应的服务器获取目标 副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
图 4是本发明一个实施例的视频分发方法的交互图。
5401 , 视频请求。
UE向 VOG发起针对目标视频的视频请求,其中该请求携带目标视频的 URL, 或者其他能够唯一标识该目标视频的标记。 可选地, 该视频请求还可 以携带有 UE的标识, 例如 IMSI、 MSIN、 IMEI等。
5402, 转发视频请求。
VOG接收到视频请求后将该请求转发至 CDN控制节点, 即将目标视频 的 URL转发至 CDN控制节点。
5403 , 每个副本的副本参数。
CDN控制节点接收到视频请求后, 可以根据视频请求中携带的 URL确 定该 URL指向的目标视频的多个副本的副本参数。 具体地, 由于目标视频 的各个副本存储在多个不同的 CDN服务节点对应的服务器上, CDN控制节 点可以汇总多个副本的副本参数后发送至 VOG。 其中不同副本的副本参数 可以完全不同也可以部分不同, 例如分辨率、 帧率、 码率、 编解码类型完全 相同的两个副本可以存储在不同的地址,或者同一存储地址存储有多个分辨 率、 帧率、 码率、 编解码各不相同的副本, 等等。 还应理解, CDN控制节 点汇总的多个副本参数可以为目标视频的所有副本的副本参数,也可以为部 分副本的副本参数, 本发明对此并不限定。
S404, 根据判定信息确定针对 UE的目标视频参数。
步骤 S404可以在步骤 S401之后和步骤 S405之前的任意时间点执行, 本发明对此并不限定。
在 VOG接收到 UE发送的视频请求后, 可以首先获取针对 UE的判定 信息, 其中判定信息包括 UE的用户签约信息、 终端能力信息和当前网络状 态信息中的至少一种。 具体地, 用户签约信息和终端能力信息可以通过视频 请求中携带的 UE的标识来获取, UE的标识可以为 IMSI、 MSIN和 IMEI 等。 具体地, VOG可以根据 UE的标识从存储有用户信息的服务器中获取, 用户签约信息可以包括用户优先级(例如 VIP用户、 普通用户等)、 可接受 的 QoS、 允许提供的码率、 编解码类型等等。 终端能力信息可以通过 UE上 报获取, 也可以通过 UE的标识来获取, 终端能力信息可以指示 UE支持的 视频的最大分辨率、 帧率、 编解码类型和视频文件类型等等。 网络状态信息 可以通过无线侧上报获取, 或者核心网获取, 以指示网络当前畅通、 拥塞程 度或负载情况等。 可以根据用户签约信息和终端能力信息确定 UE能接受的最大分辨率、帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支持的视频文件类型。 进一步地, VOG可以根据当前的网络状态信息最终确定作为目标视频参数 的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络状态较差, 负载 较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一 项或者多项, 以降低对网络视频流量的压力, 防止进一步拥堵。 如果当前网 络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持 的编解码类型确定为最终的目标视频参数, 以便于为用户提供较高质量的视 频, 提高用户体验。 此外, VOG也可以根据用户签约信息和终端能力信息 确定分辨率、 帧率、 码率的范围和编解码类型, VOG在近一步根据网络状 态信息确定上述参数,并且网络状态较差时,上述参数不会降低到范围以下, 可以保证某些高优先级用户的用户体验。
S405 , 确定目标副本的存储地址。
VOG根据步骤 S403中接收到的 CDN控制节点发送的每个副本的副本 参数, 以及步骤 S404中确定的目标视频参数, 可以确定上述每个副本的副 本参数中能够与目标视频参数匹配的副本参数对应的副本, 并将该副本确定 为目标副本。 具体地, VOG 首先可以确定多个副本的副本参数中是否有与 目标视频参数完全相同的副本参数, 如果有, 则直接确定该相同的副本参数 对应副本为目标副本; 如果没有, 可以选择与目标视频参数较为接近的副本 参数。 在确定目标副本后, 相应地可以根据该目标副本的副本参数直接确定 其存储地址。
5406, 获取目标副本。
VOG 在确定目标副本的存储地址后, 可以根据该存储地址从相应的 CDN服务节点对应的服务器获取目标副本。
5407, 下发目标副本。
VOG将获取到的目标副本作为视频流发送至 UE, 以响应 UE的视频请 求。
图 5是本发明另一实施例的视频分发方法的交互图。
S501 , 视频请求。
UE向 VOG发起针对目标视频的视频请求,其中该请求携带目标视频的 URL, 或者其他能够唯一标识该目标视频的标记。 可选地, 该视频请求还可 以携带有 UE的标识, 例如 IMSI、 MSIN、 IMEI等。
S502, 根据判定信息确定针对 UE的目标视频参数。
在 VOG接收到 UE发送的视频请求后, 可以获取针对 UE的判定信息, 其中判定信息包括 UE的用户签约信息、 终端能力信息和当前网络状态信息 中的至少一种。 具体地, 用户签约信息和终端能力信息可以通过视频请求中 携带的 UE的标识来获取, UE的标识可以为 IMSI、 MSIN和 IMEI等。 具体 地, VOG可以根据 UE的标识从存储有用户信息的服务器中获取,用户签约 信息可以包括用户优先级(例如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解码类型等等。 终端能力信息可以通过 UE上报获取, 也可以通过 UE的标识来获取, 终端能力信息可以指示 UE支持的视频的最 大分辨率、 帧率、 编解码类型和视频文件类型等等。 网络状态信息可以通过 无线侧上报获取, 或者核心网获取, 以指示网络当前畅通、 拥塞程度或负载 情况等。 可以根据用户签约信息和终端能力信息确定 UE能接受的最大分辨率、帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支持的视频文件类型。 进一步地, VOG可以根据当前的网络状态信息最终确定作为目标视频参数 的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络状态较差, 负载 较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一 项或者多项, 以降低对网络视频流量的压力, 防止进一步拥堵。 如果当前网 络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持 的编解码类型确定为最终的目标视频参数, 以便于为用户提供较高质量的视 频, 提高用户体验。 此外, VOG也可以根据用户签约信息和终端能力信息 确定分辨率、 帧率、 码率的范围和编解码类型, VOG在近一步根据网络状 态信息确定上述参数,并且网络状态较差时,上述参数不会降低到范围以下, 可以保证某些高优先级用户的用户体验。
S503, 发送 URL和目标视频参数。
VOG向 CDN控制节点发送携带有目标视频的 URL以及步骤 S502中 VOG确定的目标视频参数的请求消息。
5504, 确定目标副本。
CDN控制节点接收到请求消息后, CDN控制节点在目标视频的多个副 本的副本参数中确定与目标视频参数匹配的副本参数, CDN控制节点可以 确定多个副本的副本参数中是否有与目标视频参数完全相同的副本参数,如 果有, 则将具有该副本参数的副本确定为目标副本; 如果没有, 可以选择与 目标视频参数较为接近的副本参数对应的副本作为目标副本。
5505 , 目标副本的存储地址。
CDN控制节点确定目标副本后, 可以将目标副本的存储地址发送给 VOG。
S506, 获取目标副本。
VOG 在确定目标副本的存储地址后, 可以根据该存储地址从相应的 CDN服务节点对应的服务器获取目标副本。
S507, 下发目标副本。
VOG将获取到的目标副本作为视频流发送至 UE, 以响应 UE的视频请 求。
图 6是本发明另一实施例的视频分发方法的交互图。 S601 , 视频请求。
UE向 VOG发起针对目标视频的视频请求,其中该请求携带目标视频的 URL, 或者其他能够唯一标识该目标视频的标记。 可选地, 该视频请求还可 以携带有 UE的标识, 例如 IMSI、 MSIN、 IMEI等。
S602, 统计视频热度信息并上报。
VOG根据接收到针对目标视频的视频请求的次数确定目标视频的视频 热度信息。 应理解, 除了目标视频外, VOG还可以统计其他被请求或被请 求过视频的视频热度信息。 完成统计后, 向 CDN控制节点上报视频热度信 息。
S603 , 确定热点视频。
CDN控制节点接收到来自于 VOG上报的视频热度信息后,可以汇总各 个 VOG上报的视频热度信息, 并确定至少一个热点视频, 例如将确定视频 请求次数排名最高的 N个视频确定为热点视频。
5604, 推送热点视频。
将确定的至少一个热点视频发送至 VOG, 或者将热点视频的存储地址 发送至 VOG, 以便与 VOG从相应的 CDN服务节点获取热点视频。
5605 , 緩存热点视频。
VOG 获取到热点视频后在本地进行緩存, 以便于在接收到针对热点视 频的后续请求时直接为用户提供视频。
图 7是本发明一个实施例的视频优化网关的示意框图。 图 7的视频优化 网关 VOG 70包括获取单元 71和确定单元 72。
获取单元 71在 VOG 70接收到用户设备 UE发送的针对目标视频的视频 请求时, 获取 UE的判定信息, 其中判定信息包括 UE的用户签约信息、 终 端能力信息和当前网络状态信息中的至少一种; 确定单元 72才艮据判定信息 确定针对 UE的目标视频参数, 其中目标视频参数包括分辨率、 帧率、码率、 编解码类型中的至少一种; 获取单元 71根据目标视频参数从内容分发网络 CDN控制节点获取目标视频的多个副本中的目标副本的存储地址; 获取单 元 71根据存储地址获取目标副本。
本发明实施例通过视频优化网关 VOG 70确定针对用户设备的目标视频 参数, 并根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻 移动宽带网络的视频流量压力, 提高用户体验。
可选地, 作为一个实施例, 视频请求包括 UE的标识, 获取单元 71具 体用于: 根据 UE的标识确定 UE的用户签约信息和终端能力信息, 并且确 定当前的网络状态信息。
应理解, VOG 70的获取单元 71在获取针对 UE的判定信息时, 可以通 过视频请求中携带的 UE 的标识来获取用户签约信息和终端能力信息, UE 的标识可以为 IMSI、 MSIN和 IMEI等。 具体地, VOG可以根据 UE的标识 从存储有用户信息的服务器中获取, 用户签约信息可以包括用户优先级(例 如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解码类型 等等。 终端能力信息可以通过 UE上报获取,也可以通过 UE的标识来获取, 终端能力信息可以指示 UE支持的视频的最大分辨率、 帧率、 编解码类型和 视频文件类型等等。 网络状态信息可以通过无线侧上报获取, 或者核心网获 取, 以指示网络当前畅通、 拥塞程度或负载情况等。
可选地,确定单元 72具体用于根据获取单元 71获取的判定信息确定针 对 UE的目标视频参数。 具体地, VOG 70的确定单元 72可以根据用户签约 信息和终端能力信息确定 UE能接受的最大分辨率、 帧率、 码率以及 UE支 持的编解码类型, 此外还可以有 UE支持的视频文件类型。 进一步地, VOG 70的确定单元 72可以根据当前的网络状态信息最终确定作为目标视频参数 的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络状态较差, 负载 较高, 则 VOG 70可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低 一项或者多项, 以降低对网络视频流量的压力, 防止进一步拥堵。 如果当前 网络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支 持的编解码类型确定为最终的目标视频参数, 以便于为用户提供较高质量的 视频, 提高用户体验。 此外, VOG 70的确定单元 72也可以根据用户签约信 息和终端能力信息确定分辨率、 帧率、 码率的范围和编解码类型, VOG 70 再近一步根据网络状态信息确定上述参数, 并且网络状态较差时, 上述参数 不会降低到范围以下, 可以保证某些高优先级用户的用户体验。
可选地, 作为一个实施例, 视频请求包括目标视频的统一资源定位符 URL, VOG 70还包括发送单元 73和接收单元 74, 发送单元 73用于: 向 CDN控制节点发送 URL;接收单元 74用于接收 CDN控制节点根据 URL发 送的目标视频的多个副本中每个副本的副本参数, 其中每个副本的副本参数 包括每个副本的分辨率、帧率、码率、编解码类型和存储地址中的至少一种。
VOG 70在通过接收单元 74接收到视频请求后,可以将该视频请求转发 给 CDN控制节点。 应理解, 由于 CDN控制节点不一定与 VOG 70相连, 与 VOG 70相连的 CDN边缘节点可以将视频请求通过 CDN系统最终转发给 CDN控制节点。 CDN控制节点接收到视频请求后, 可以根据视频请求中携 带的 URL确定该 URL指向的目标视频的多个副本的副本参数。 具体地, 由 于目标视频的各个副本存储在多个不同的 CDN服务节点对应的服务器上, CDN控制节点可以汇总多个副本的副本参数后发送至 VOG 70。其中不同副 本的副本参数可以完全不同也可以部分不同, 例如分辨率、 帧率、 码率、 编 解码类型完全相同的两个副本可以存储在不同的地址,或者同一存储地址存 储有多个分辨率、 帧率、 码率、 编解码各不相同的副本, 等等。 还应理解,
CDN控制节点汇总的多个副本参数可以为目标视频的所有副本的副本参数, 也可以为部分副本的副本参数, 本发明对此并不限定。
可选地, 作为一个实施例, 确定单元 72具体用于: 根据每个副本的副 本参数确定与目标视频参数匹配的目标副本; 确定目标副本的存储地址。
在接收到 CDN控制节点发送的多个副本的副本参数后, VOG 70的确定 单元 72可以在上述多个副本的副本参数中确定与 VOG 70确定的目标视频 参数匹配的副本参数对应的副本, 并确定该副本为目标副本。 具体地, VOG
70 首先可以确定多个副本的副本参数中是否有与目标视频参数完全相同的 副本参数, 如果有, 则直接确定该相同的副本参数对应副本为目标副本; 如 果没有,可以选择与目标视频参数较为接近的副本参数。在确定目标副本后, 相应地可以根据该目标副本的副本参数直接确定其存储地址。
可选地, 作为一个实施例, VOG 70包括发送单元 73和接收单元 74, 发送单元 73用于: 向 CDN控制节点发送携带 URL和目标视频参数的请求 消息,以便于 CDN节点在 URL指示的目标视频的多个副本中确定与目标视 频参数匹配的目标副本, 并确定目标副本的存储地址; 接收单元 74用于接 收 CDN控制节点发送的目标副本的存储地址。
具体地, 在 VOG 70根据获取的判定信息确定针对 UE的目标视频参数 之后, VOG 70可以通过发送单元 73将 URL和目标视频参数发送至 CDN控 制节点, 由 CDN控制节点在目标视频的多个副本的副本参数中确定与目标 视频参数匹配的副本参数, 类似地, CDN控制节点可以确定多个副本的副 本参数中是否有与目标视频参数完全相同的副本参数, 如果有, 则将该副本 参数中的存储地址发送给 VOG 70; 如果没有, 可以选择与目标视频参数较 为接近的副本参数, 并将存储地址发送给 VOG 70。
可选地, 作为一个实施例, 获取单元 71具体用于: 从存储地址指向的 CDN节点对应的服务器读取目标副本; 发送单元 73还用于: 向 UE发送目 标副本。 VOG 70在确定目标副本的存储地址或者从 CDN控制节点接收到目 标副本的存储地址后, 可以根据该存储地址从相应的 CDN服务节点对应的 服务器获取目标副本。
可选地,作为一个实施例, 所述 VOG 70还包统计单元, 统计单元用于: 根据接收到的视频请求, 统计目标视频的视频热度信息; 通过发送单元 73 向 CDN控制节点发送视频热度信息, 以便于 CDN控制节点汇总 VOG上报 的多个视频的视频热度信息, 并确定至少一个热点视频; 获取单元 71还用 于从 CDN控制节点获取至少一个热点视频, 并緩存至少一个热点视频。
应理解, VOG 70可以根据接收到针对目标视频的视频请求的次数确定 视频热度信息, CDN控制节点可以汇总多个视频的视频热度信息, 从中确 定视频热度最高的至少一个视频,例如确定视频请求次数排名最高的 N个视 频为热点视频。将确定的至少一个热点视频緩存至 VOG 70,以便与 VOG 70 在接收到针对热点视频的后续请求时直接为用户提供视频。
本发明实施例通过视频优化网关 VOG 70确定针对用户设备的目标视频 参数, 并根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻 移动宽带网络的视频流量压力, 提高用户体验。
图 8是本发明一个实施例的内容分发网络控制节点的示意框图。 图 8的 CDN控制节点 80包括接收单元 81和发送单元 82。
接收单元 81接收视频优化网关 VOG发送的针对目标视频的请求消息; 发送单元 82根据请求消息向 VOG发送目标视频的副本信息, 以便于 VOG 根据副本信息获取目标视频的目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。 在 VOG接收到用户设备 UE发送的针对目标视频的视频请求时, VOG 可以将该请求消息转发至 CDN控制节点 80, 或者经过处理后发送至 CDN 控制节点 80。 具体地, 该请求消息携带有 UE请求的目标视频的 URL, 该 请求消息还可以进一步携带 VOG确定的针对该 UE的目标视频参数。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL, CDN控制节点 80还包括确定单元 83, 确定单元 83具 体用于: 根据 URL确定目标视频的多个副本中每个副本的副本参数, 其中 每个副本的副本参数包括每个副本的分辨率、 帧率、 码率、 编解码类型和存 储地址中的至少一种;通过发送单元 82向 VOG发送多个副本中每个副本的 副本参数, 以便于 VOG根据每个副本的副本参数确定与目标视频参数匹配 的目标副本的存储地址, 并且从存储地址指向的 CDN节点对应的服务器读 取目标副本, 其中目标视频参数由 VOG根据发起视频请求的用户设备 UE 的用户签约信息、 终端能力信息和当前网络状态信息中的至少一种确定, 目 标视频参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种。
VOG在接收到 UE发送的视频请求后, 可以将该请求消息转发给 CDN 控制节点 80。应理解, 由于 CDN控制节点 80不一定与 VOG相连, 与 VOG 相连的 CDN边缘节点可以将视频请求通过 CDN系统最终转发给 CDN控制 节点 80。 CDN控制节点 80通过接收单元 81接收到视频请求后, 可以根据 视频请求中携带的 URL确定该 URL指向的目标视频的多个副本的副本参 数。 具体地, 由于目标视频的各个副本存储在多个不同的 CDN服务节点对 应的服务器上, CDN控制节点 80可以汇总多个副本的副本参数后通过发送 单元 82发送至 VOG。 其中不同副本的副本参数可以完全不同也可以部分不 同, 例如分辨率、 帧率、 码率、 编解码类型完全相同的两个副本可以存储在 不同的地址, 或者同一存储地址存储有多个分辨率、 帧率、 码率、 编解码各 不相同的副本, 等等。 还应理解, CDN控制节点 80汇总的多个副本参数可 以为目标视频的所有副本的副本参数, 也可以为部分副本的副本参数, 本发 明对此并不限定。
在 CDN控制节点 80向 VOG发送目标视频的副本信息之前或者之后, VOG可以根据判定信息确定针对 UE的目标视频参数, 判定信息由 VOG获 取, 包括用户签约信息、 终端能力信息和网络状态信息中的至少一种, 其中 用户签约信息和终端能力信息可以通过视频请求中携带的 UE 的标识来获 取, UE的标识可以为 IMSI、 MSIN和 IMEI等。 具体地, VOG可以根据 UE 的标识从存储有用户信息的服务器中获取, 用户签约信息可以包括用户优先 级(例如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解 码类型等等。 终端能力信息可以通过 UE上报获取, 也可以通过 UE的标识 来获取, 终端能力信息可以指示 UE支持的视频的最大分辨率、 帧率、 编解 码类型和视频文件类型等等。 网络状态信息可以通过无线侧上报获取, 或者 核心网获取, 以指示网络当前畅通、 拥塞程度或负载情况等。 可以根据用户签约信息和终端能力信息确定 UE能接受的最大分辨率、帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支持的视频文件类型。 进一步地, VOG可以根据当前的网络状态信息最终确定作为目标视频参数 的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前网络状态较差, 负载 较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一 项或者多项, 以降低对网络视频流量的压力, 防止进一步拥堵。 如果当前网 络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持 的编解码类型确定为最终的目标视频参数, 以便于为用户提供较高质量的视 频, 提高用户体验。 此外, VOG也可以根据用户签约信息和终端能力信息 确定分辨率、 帧率、 码率的范围和编解码类型, VOG在近一步根据网络状 态信息确定上述参数,并且网络状态较差时,上述参数不会降低到范围以下, 可以保证某些高优先级用户的用户体验。
在接收到 CDN控制节点 80发送的多个副本的副本参数后, VOG可以 在上述多个副本的副本参数中确定与 VOG确定的目标视频参数匹配的副本 参数对应的副本, 并确定该副本为目标副本。 具体地, VOG 首先可以确定 多个副本的副本参数中是否有与目标视频参数完全相同的副本参数, 如果 有, 则直接确定该相同的副本参数对应副本为目标副本; 如果没有, 可以选 择与目标视频参数较为接近的副本参数。 在确定目标副本后, 相应地可以根 据该目标副本的副本参数直接确定其存储地址。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL和 VOG确定的针对发起视频请求的用户设备 UE的目标 视频参数, 其中目标视频参数由 VOG根据 UE的用户签约信息、 终端能力 信息和当前网络状态信息中的至少一种确定, 目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种。
在 V0G接收到 UE发送的视频请求后, VOG可以根据判定信息确定针 对 UE的目标视频参数, 判定信息由 VOG获取, 包括用户签约信息、 终端 能力信息和网络状态信息中的至少一种,其中用户签约信息和终端能力信息 可以通过视频请求中携带的 UE的标识来获取, UE的标识可以为 IMSL MSIN 和 IMEI等。 具体地, VOG可以根据 UE的标识从存储有用户信息的服务器 中获取, 用户签约信息可以包括用户优先级(例如 VIP用户、 普通用户等)、 可接受的 QoS、 允许提供的码率、 编解码类型等等。 终端能力信息可以通过 UE上报获取, 也可以通过 UE的标识来获取, 终端能力信息可以指示 UE 支持的视频的最大分辨率、 帧率、 编解码类型和视频文件类型等等。 网络状 态信息可以通过无线侧上报获取, 或者核心网获取, 以指示网络当前畅通、 拥塞程度或负载情况等。 针对 UE的目标视频参数由 VOG根据判定信息确 定,具体地, VOG可以根据用户签约信息和终端能力信息确定 UE能接受的 最大分辨率、 帧率、 码率以及 UE支持的编解码类型, 此外还可以有 UE支 持的视频文件类型。 进一步地, VOG 可以根据当前的网络状态信息最终确 定作为目标视频参数的分辨率、 帧率、 码率和编解码类型。 例如, 如果当前 网络状态较差, 负载较高, 则 VOG可以在 UE能接受的最大分辨率、 帧率、 码率基础上降低一项或者多项, 以降低对网络视频流量的压力, 防止进一步 拥堵。 如果当前网络状态较好, 则可以将 UE能接受的最大分辨率、 帧率、 码率以及 UE支持的编解码类型确定为最终的目标视频参数, 以便于为用户 提供较高质量的视频, 提高用户体验。 此外, VOG也可以根据用户签约信 息和终端能力信息确定分辨率、 帧率、 码率的范围和编解码类型, VOG在 近一步根据网络状态信息确定上述参数, 并且网络状态较差时, 上述参数不 会降低到范围以下, 可以保证某些高优先级用户的用户体验。
可选地, 作为一个实施例, CDN控制节点 80还包括确定单元 83, 确定 单元 83用于: 在 URL指示的目标视频的多个副本中确定与目标视频参数匹 配的目标副本, 并确定目标副本的存储地址; 通过发送单元 82向 VOG发送 目标副本的存储地址,以便于 VOG从存储地址指向的 CDN节点对应的服务 器读取目标副本。
在目标视频参数确定后, VOG可以将针对目标视频的 URL和针对 UE 的目标视频参数发送至 CDN控制节点 80。 由 CDN控制节点 80在目标视频 的多个副本的副本参数中确定与目标视频参数匹配的副本参数, 类似地,
CDN控制节点可以确定多个副本的副本参数中是否有与目标视频参数完全 相同的副本参数, 如果有, 则将该副本参数中的存储地址发送给 VOG; 如 果没有, 可以选择与目标视频参数较为接近的副本参数, 并将存储地址发送 给 VOG, 以便于 VOG根据该存储地址从相应的 CDN服务节点对应的服务 器获取目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
图 9是本发明另一实施例的视频优化网关的示意框图。 图 9的视频优化 网关 90包括处理器 91和存储器 92。 处理器 91和存储器 92通过总线系统 93相连。
存储器 92用于存储使得处理器 91执行以下操作的指令: 在接收到用户 设备 UE发送的针对目标视频的视频请求时, 获取 UE的判定信息, 其中判 定信息包括 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至 少一种; 根据判定信息确定针对 UE的目标视频参数, 其中目标视频参数包 括分辨率、 帧率、 码率、 编解码类型中的至少一种; 根据目标视频参数从内 容分发网络 CDN控制节点获取目标视频的多个副本中的目标副本的存储地 址; 根据存储地址获取目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
此外, 视频优化网关 90还可以包括发射电路 94、接收电路 95等。 处理 器 91控制视频优化网关 90的操作, 处理器 91还可以称为 CPU ( Central Processing Unit, 中央处理单元)。 存储器 92可以包括只读存储器和随机存 取存储器, 并向处理器 91提供指令和数据。 存储器 92的一部分还可以包括 非易失性随机存取存储器( NVRAM )。 视频优化网关 90的各个组件通过总 线系统 93耦合在一起, 其中总线系统 93除包括数据总线之外, 还可以包括 电源总线、 控制总线和状态信号总线等。 但是为了清楚说明起见, 在图中将 各种总线都标为总线系统 93。
上述本发明实施例揭示的方法可以应用于处理器 91 中, 或者由处理器 91实现。 处理器 91可能是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中, 上述方法的各步骤可以通过处理器 91 中的硬件的集成逻辑电路 或者软件形式的指令完成。 上述的处理器 91可以是通用处理器、 数字信号 处理器 (DSP )、 专用集成电路(ASIC )、 现成可编程门阵列 (FPGA )或者 其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以实 现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框图。 通用处理器 可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实 施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用 译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储 器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄 存器等本领域成熟的存储介质中。 该存储介质位于存储器 92, 处理器 91读 取存储器 92中的信息, 结合其硬件完成上述方法的步骤。
可选地, 作为一个实施例, 视频请求包括 UE的标识, 处理器 91根据
UE的标识确定 UE的用户签约信息和终端能力信息, 并且确定当前的网络 状态信息。
可选地, 作为一个实施例, 视频请求包括目标视频的统一资源定位符 URL,在 VOG根据目标视频参数从内容分发网络 CDN控制节点获取目标视 频的多个副本中的目标副本的存储地址之前, 处理器 91通过发射电路 94向 CDN控制节点发送 URL;通过接收电路 95接收 CDN控制节点根据 URL发 送的目标视频的多个副本中每个副本的副本参数, 其中每个副本的副本参数 包括每个副本的分辨率、帧率、码率、编解码类型和存储地址中的至少一种。
可选地,作为一个实施例, VOG根据目标视频参数从内容分发网络 CDN 控制节点获取目标视频的多个副本中的目标副本的存储地址, 包括: 处理器 91根据每个副本的副本参数确定与目标视频参数匹配的目标副本;确定目标 副本的存储地址。
可选地,作为一个实施例, VOG根据目标视频参数从内容分发网络 CDN 控制节点获取目标视频的多个副本中的目标副本的存储地址, 包括: 通过发 射电路 94向 CDN控制节点发送携带 URL和目标视频参数的请求消息, 以 便于 CDN节点在 URL指示的目标视频的多个副本中确定与目标视频参数匹 配的目标副本, 并确定目标副本的存储地址; 通过接收电路 95接收 CDN控 制节点发送的目标副本的存储地址。
可选地, 作为一个实施例, VOG根据存储地址获取目标副本, 处理器 91通过接收电路 95从存储地址指向的 CDN节点对应的服务器读取目标副 本; VOG根据存储地址获取目标副本之后, 还包括: 通过发射电路 94 向 UE发送目标副本。
可选地, 作为一个实施例, 处理器 91根据接收到的视频请求, 统计目 标视频的视频热度信息;通过发射电路 94向 CDN控制节点发送视频热度信 息, 以便于 CDN控制节点汇总 VOG上报的多个视频的视频热度信息,并确 定至少一个热点视频;通过接收电路 95从 CDN控制节点获取至少一个热点 视频, 并緩存至少一个热点视频。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
图 10是本发明另一实施例的内容分发网络控制节点的示意框图。 图 5 的内容分发网络控制节点 100包括处理器 101和存储器 102。 处理器 101和 存储器 102通过总线系统 103相连。
存储器 102用于存储使得处理器 101执行以下操作的指令:接收视频优 化网关 VOG发送的针对目标视频的请求消息; 根据请求消息向 VOG发送 目标视频的副本信息,以便于 VOG根据副本信息获取目标视频的目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
此外, CDN控制节点 100还可以包括发射电路 104、接收电路 105及天 线 106等。 处理器 101控制 CDN控制节点 100的操作, 处理器 101还可以 称为 CPU ( Central Processing Unit, 中央处理单元)。存储器 102可以包括只 读存储器和随机存取存储器, 并向处理器 101提供指令和数据。 存储器 102 的一部分还可以包括非易失性随机存取存储器( NVRAM )。 CDN控制节点 100的各个组件通过总线系统 103耦合在一起, 其中总线系统 103除包括数 据总线之外, 还可以包括电源总线、 控制总线和状态信号总线等。 但是为了 清楚说明起见, 在图中将各种总线都标为总线系统 103。
上述本发明实施例揭示的方法可以应用于处理器 101中,或者由处理器 101实现。 处理器 101可能是一种集成电路芯片, 具有信号的处理能力。 在 实现过程中, 上述方法的各步骤可以通过处理器 101中的硬件的集成逻辑电 路或者软件形式的指令完成。 上述的处理器 101可以是通用处理器、 数字信 号处理器 (DSP )、 专用集成电路(ASIC )、 现成可编程门阵列 (FPGA )或 者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以 实现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框图。 通用处理 器可以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本发明 实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者 用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存 储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。该存储介质位于存储器 102,处理器 101 读取存储器 102中的信息, 结合其硬件完成上述方法的步骤。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL, CDN控制节点 100根据请求消息向 VOG发送目标视频 的副本信息, 包括: 处理器 101根据 URL确定目标视频的多个副本中每个 副本的副本参数, 其中每个副本的副本参数包括每个副本的分辨率、 帧率、 码率、 编解码类型和存储地址中的至少一种; 通过发射电路 104向 VOG发 送多个副本中每个副本的副本参数, 以便于 VOG根据每个副本的副本参数 确定与目标视频参数匹配的目标副本的存储地址, 并且从存储地址指向的 CDN节点对应的服务器读取目标副本,其中目标视频参数由 VOG根据发起 视频请求的用户设备 UE的用户签约信息、 终端能力信息和当前网络状态信 息中的至少一种确定, 目标视频参数包括分辨率、 帧率、 码率、 编解码类型 中的至少一种。
可选地, 作为一个实施例, 针对目标视频的请求消息包括目标视频的统 一资源定位符 URL和 VOG确定的针对发起视频请求的用户设备 UE的目标 视频参数, 其中目标视频参数由 VOG根据 UE的用户签约信息、 终端能力 信息和当前网络状态信息中的至少一种确定, 目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种。 可选地, 作为一个实施例, CDN控制节点 100根据请求消息向 V0G发 送目标视频的副本信息, 处理器 101用于: 在 URL指示的目标视频的多个 副本中确定与目标视频参数匹配的目标副本, 并确定目标副本的存储地址; 通过发射电路 94向 VOG发送目标副本的存储地址, 以便于 VOG从存储地 址指向的 CDN节点对应的服务器读取目标副本。
本发明实施例通过视频优化网关确定针对用户设备的目标视频参数, 并 根据目标视频参数从 CDN系统获取合适的目标副本发送给用户, 能够根据 当前网络状况为用户提供满足用户需求的视频副本,从而能够减轻移动宽带 网络的视频流量压力, 提高用户体验。
应理解, 本文中术语 "和 /或", 仅仅是一种描述关联对象的关联关系, 表示可以存在三种关系, 例如, A和 /或 可以表示: 单独存在 , 同时存 在八和^ 单独存在 B这三种情况。 另外, 本文中字符 "/", 一般表示前后 关联对象是一种 "或" 的关系。
应理解, 在本发明的各种实施例中, 上述各过程的序号的大小并不意味 着执行顺序的先后, 各过程的执行顺序应以其功能和内在逻辑确定, 而不应 对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特 定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能, 但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描 述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接辆合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前 述的存储介质包括: U盘、移动硬盘、只读存储器( ROM, Read-Only Memory )、 随机存取存储器(RAM, Random Access Memory ), 磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应以所述权利要求的保护范围为准。

Claims

权利要求
1. 一种视频分发方法, 其特征在于, 包括:
在视频优化网关 VOG接收到用户设备 UE发送的针对目标视频的视频 请求时, 获取所述 UE的判定信息, 其中所述判定信息包括所述 UE的用户 签约信息、 终端能力信息和当前网络状态信息中的至少一种;
所述 VOG根据所述判定信息确定针对所述 UE的目标视频参数, 其中 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种; 所述 VOG根据所述目标视频参数从内容分发网络 CDN控制节点获取所 述目标视频的多个副本中的目标副本的存储地址;
所述 VOG根据所述存储地址获取所述目标副本。
2. 根据权利要求 1 所述的方法, 其特征在于, 所述视频请求包括所述 UE的标识,所述获取所述 UE的判定信息包括:根据所述 UE的标识确定所 述 UE的用户签约信息和终端能力信息, 并且确定当前的网络状态信息。
3. 根据权利要求 1所述的方法,其特征在于,所述视频请求包括所述目 标视频的统一资源定位符 URL, 在所述 VOG根据所述目标视频参数从内容 分发网络 CDN控制节点获取所述目标视频的多个副本中的目标副本的存储 地址之前, 所述方法还包括:
向所述 CDN控制节点发送所述 URL;
接收所述 CDN控制节点根据所述 URL发送的所述目标视频的多个副本 中每个副本的副本参数, 其中所述每个副本的副本参数包括所述每个副本 的分辨率、 帧率、 码率、 编解码类型和存储地址中的至少一种。
4. 根据权利要求 3所述的方法, 其特征在于, 所述 VOG根据所述目标 视频参数从内容分发网络 CDN控制节点获取所述目标视频的多个副本中的 目标副本的存储地址, 包括:
根据所述每个副本的副本参数确定与所述目标视频参数匹配的目标副 本;
确定所述目标副本的存储地址。
5. 根据权利要求 1所述的方法, 其特征在于, 所述 VOG根据所述目标 视频参数从内容分发网络 CDN控制节点获取所述目标视频的多个副本中的 目标副本的存储地址, 包括:
向所述 CDN控制节点发送携带所述 URL和所述目标视频参数的请求消 息,以便于所述 CDN节点在所述 URL指示的所述目标视频的多个副本中确 定与所述目标视频参数匹配的目标副本, 并确定所述目标副本的存储地址; 接收所述 CDN控制节点发送的所述目标副本的存储地址。
6. 根据权利要求 4或 5所述的方法, 其特征在于, 所述 VOG根据所述 存储地址获取所述目标副本, 包括: 从所述存储地址指向的 CDN节点对应 的服务器读取所述目标副本;
所述 VOG根据所述存储地址获取所述目标副本之后, 还包括: 向所述 UE发送所述目标副本。
7. 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 根据接收到的视频请求, 统计所述目标视频的视频热度信息;
向所述 CDN控制节点发送所述视频热度信息,以便于所述 CDN控制节 点汇总 VOG上报的多个视频的视频热度信息, 并确定至少一个热点视频; 从所述 CDN控制节点获取所述至少一个热点视频, 并緩存所述至少一 个热点视频。
8. 一种视频分发方法, 其特征在于, 包括:
内容分发网络 CDN控制节点接收视频优化网关 VOG发送的针对目标视 频的请求消息;
所述 CDN控制节点根据所述请求消息向所述 VOG发送所述目标视频的 副本信息, 以便于所述 VOG根据所述副本信息获取所述目标视频的目标副 本。
9. 根据权利要求 8所述的方法,其特征在于,所述针对目标视频的请求 消息包括所述目标视频的统一资源定位符 URL, 所述 CDN控制节点根据所 述请求消息向所述 VOG发送所述目标视频的副本信息, 包括:
根据所述 URL确定所述目标视频的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数包括所述每个副本的分辨率、 帧率、 码率、 编 解码类型和存储地址中的至少一种;
向所述 VOG发送所述多个副本中每个副本的副本参数, 以便于所述 VOG根据所述每个副本的副本参数确定与目标视频参数匹配的目标副本的 存储地址, 并且从所述存储地址指向的 CDN节点对应的服务器读取所述目 标副本, 其中所述目标视频参数由所述 VOG根据发起视频请求的用户设备 UE的用户签约信息、终端能力信息和当前网络状态信息中的至少一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种。
10. 根据权利要求 8所述的方法, 其特征在于, 所述针对目标视频的请 求消息包括所述目标视频的统一资源定位符 URL和所述 VOG确定的针对发 起视频请求的用户设备 UE的目标视频参数, 其中所述目标视频参数由所述 VOG根据所述 UE的用户签约信息、终端能力信息和当前网络状态信息中的 至少一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型中 的至少一种。
11. 根据权利要求 10所述的方法, 其特征在于, 所述 CDN控制节点根 据所述请求消息向所述 VOG发送所述目标视频的副本信息, 包括:
在所述 URL指示的所述目标视频的多个副本中确定与所述目标视频参 数匹配的目标副本, 并确定所述目标副本的存储地址;
向所述 VOG发送所述目标副本的存储地址, 以便于所述 VOG从所述 存储地址指向的 CDN节点对应的服务器读取所述目标副本。
12. 一种视频优化网关, 其特征在于, 包括:
获取单元, 用于在所述视频优化网关 VOG接收到用户设备 UE发送的 针对目标视频的视频请求时, 获取所述 UE的判定信息, 其中所述判定信息 包括所述 UE的用户签约信息、 终端能力信息和当前网络状态信息中的至少 一种;
确定单元, 用于根据所述判定信息确定针对所述 UE的目标视频参数, 其中所述目标视频参数包括分辨率、帧率、码率、编解码类型中的至少一种; 所述获取单元还用于根据所述目标视频参数从内容分发网络 CDN控制 节点获取所述目标视频的多个副本中的目标副本的存储地址;
13. 根据权利要求 12所述的视频优化网关,其特征在于, 所述视频请求 包括所述 UE的标识, 所述获取单元具体用于: 根据所述 UE的标识确定所 述 UE的用户签约信息和终端能力信息, 并且确定当前的网络状态信息。
14. 根据权利要求 12所述的视频优化网关,其特征在于, 所述视频请求 包括所述目标视频的统一资源定位符 URL, 所述 VOG还包括发送单元和接 收单元, 所述发送单元用于:
向所述 CDN控制节点发送所述 URL;
所述接收单元用于接收所述 CDN控制节点根据所述 URL发送的所述目 标视频的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数 包括所述每个副本的分辨率、 帧率、 码率、 编解码类型和存储地址中的至 少一种。
15. 根据权利要求 14所述的视频优化网关,其特征在于, 所述确定单元 具体用于:
根据所述每个副本的副本参数确定与所述目标视频参数匹配的目标副 本;
确定所述目标副本的存储地址。
16. 根据权利要求 12所述的视频优化网关, 其特征在于, 所述 VOG还 包括发送单元和接收单元, 所述发送单元用于:
向所述 CDN控制节点发送携带所述 URL和所述目标视频参数的请求消 息,以便于所述 CDN节点在所述 URL指示的所述目标视频的多个副本中确 定与所述目标视频参数匹配的目标副本, 并确定所述目标副本的存储地址; 所述接收单元用于: 接收所述 CDN控制节点发送的所述目标副本的存 储地址。
17. 根据权利要求 15或 16所述的视频优化网关, 其特征在于, 所述获 取单元具体用于: 从所述存储地址指向的 CDN节点对应的服务器读取所述 目标副本;
所述发送单元还用于: 向所述 UE发送所述目标副本。
18. 根据权利要求 12所述的视频优化网关, 其特征在于, 所述 VOG还 包括统计单元和发送单元, 所述统计单元用于:
根据接收到的视频请求, 统计所述目标视频的视频热度信息; 通过所述发送单元向所述 CDN控制节点发送所述视频热度信息, 以便 于所述 CDN控制节点汇总 VOG上报的多个视频的视频热度信息,并确定至 少一个热点视频;
所述获取单元还用于: 从所述 CDN控制节点获取所述至少一个热点视 频, 并緩存所述至少一个热点视频。
19. 一种内容分发网络控制节点, 其特征在于, 包括:
接收单元, 用于接收视频优化网关 VOG发送的针对目标视频的请求消 息;
发送单元, 用于根据所述请求消息向所述 VOG发送所述目标视频的副 本信息,以便于所述 VOG根据所述副本信息获取所述目标视频的目标副本。
20. 根据权利要求 19所述的内容分发网络控制节点,其特征在于,所述 针对目标视频的请求消息包括所述目标视频的统一资源定位符 URL, 所述
CDN控制节点还包括确定单元, 所述确定单元具体用于:
根据所述 URL确定所述目标视频的多个副本中每个副本的副本参数, 其中所述每个副本的副本参数包括所述每个副本的分辨率、 帧率、 码率、 编 解码类型和存储地址中的至少一种;
通过所述发送单元向所述 VOG发送所述多个副本中每个副本的副本参 数, 以便于所述 VOG根据所述每个副本的副本参数确定与目标视频参数匹 配的目标副本的存储地址, 并且从所述存储地址指向的 CDN节点对应的服 务器读取所述目标副本, 其中所述目标视频参数由所述 VOG根据发起视频 请求的用户设备 UE的用户签约信息、 终端能力信息和当前网络状态信息中 的至少一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型 中的至少一种。
21. 根据权利要求 19所述的内容分发网络控制节点,其特征在于,所述 针对目标视频的请求消息包括所述目标视频的统一资源定位符 URL和所述
VOG确定的针对发起视频请求的用户设备 UE的目标视频参数,其中所述目 标视频参数由所述 VOG根据所述 UE的用户签约信息、 终端能力信息和当 前网络状态信息中的至少一种确定, 所述目标视频参数包括分辨率、 帧率、 码率、 编解码类型中的至少一种。
22. 根据权利要求 21所述的内容分发网络控制节点,其特征在于,所述 CDN控制节点还包括确定单元, 所述确定单元用于:
在所述 URL指示的所述目标视频的多个副本中确定与所述目标视频参 数匹配的目标副本, 并确定所述目标副本的存储地址;
通过所述发送单元向所述 VOG发送所述目标副本的存储地址, 以便于 所述 VOG从所述存储地址指向的 CDN节点对应的服务器读取所述目标副 本。
23. 一种视频分发系统, 其特征在于, 包括:
权利要求 12-18中任意一项所述的视频优化网关 VOG和权利要求 19-22 中任意一项所述的内容分发网络 CDN控制节点,
所述 VOG用于在接收到用户设备 UE发送的针对目标视频的视频请求 时, 获取所述 UE的判定信息, 其中所述判定信息包括所述 UE的用户签约 信息、 终端能力信息和当前网络状态信息中的至少一种; 才艮据所述判定信息 确定针对所述 UE的目标视频参数, 其中所述目标视频参数包括分辨率、 帧 率、 码率、 编解码类型中的至少一种; 根据所述目标视频参数从所述 CDN 控制节点获取所述目标视频的多个副本中的目标副本的存储地址; 根据所述 存储地址获取所述目标副本;
所述内容分发网络 CDN控制节点用于接收所述 VOG发送的针对所述目 标视频的请求消息; 根据所述请求消息向所述 VOG发送所述目标视频的副 本信息,以便于所述 VOG根据所述副本信息获取所述目标视频的目标副本。
PCT/CN2014/081219 2014-06-30 2014-06-30 视频分发方法、设备和系统 WO2016000151A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2014/081219 WO2016000151A1 (zh) 2014-06-30 2014-06-30 视频分发方法、设备和系统
CN201480002447.0A CN105532012B (zh) 2014-06-30 2014-06-30 视频分发方法、设备和系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/081219 WO2016000151A1 (zh) 2014-06-30 2014-06-30 视频分发方法、设备和系统

Publications (1)

Publication Number Publication Date
WO2016000151A1 true WO2016000151A1 (zh) 2016-01-07

Family

ID=55018243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/081219 WO2016000151A1 (zh) 2014-06-30 2014-06-30 视频分发方法、设备和系统

Country Status (2)

Country Link
CN (1) CN105532012B (zh)
WO (1) WO2016000151A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106060605A (zh) * 2016-05-25 2016-10-26 清华大学深圳研究生院 一种基于cdn的直播流自适应方法和系统
WO2020143423A1 (zh) * 2019-01-10 2020-07-16 广州视源电子科技股份有限公司 视频流码率分配方法、装置及计算机可读存储介质

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109729385A (zh) * 2018-12-25 2019-05-07 广州市百果园信息技术有限公司 视频下载方法、装置、计算机设备、存储介质和终端
CN113453043B (zh) * 2020-03-27 2023-04-11 中国移动通信集团山东有限公司 一种视频调度优化方法、装置、计算机设备和存储介质
CN114025241A (zh) * 2021-10-19 2022-02-08 山东百盟信息技术有限公司 电视播放能力的管理控制方法和系统
CN114363289B (zh) * 2021-12-22 2023-08-01 天翼阅读文化传播有限公司 一种基于规则引擎的虚拟网络智能调度系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635635A (zh) * 2009-08-25 2010-01-27 北京原力创新科技有限公司 云模式流媒体服务平台
CN102497387A (zh) * 2011-11-11 2012-06-13 合一网络技术(北京)有限公司 一种基于P2P客户端状态分析的Flash视频分发方法
CN102883216A (zh) * 2011-07-14 2013-01-16 上海聚力传媒技术有限公司 一种视频直播方法与设备
US20130290466A1 (en) * 2012-04-30 2013-10-31 Sk Telecom Co., Ltd. Method of providing content during hand-over and appartus therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101924917B (zh) * 2010-09-16 2013-06-05 华中科技大学 一种基于移动用户终端的视频点播系统及方法
CN102088620B (zh) * 2010-12-01 2014-06-18 中兴通讯股份有限公司南京分公司 一种内容分发网络中媒体文件下载方法及客户端
CN102833219B (zh) * 2011-06-16 2015-06-03 华为技术有限公司 向客户端传输数据文件的方法和装置
WO2013097184A1 (zh) * 2011-12-30 2013-07-04 华为技术有限公司 业务分发方法、设备和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635635A (zh) * 2009-08-25 2010-01-27 北京原力创新科技有限公司 云模式流媒体服务平台
CN102883216A (zh) * 2011-07-14 2013-01-16 上海聚力传媒技术有限公司 一种视频直播方法与设备
CN102497387A (zh) * 2011-11-11 2012-06-13 合一网络技术(北京)有限公司 一种基于P2P客户端状态分析的Flash视频分发方法
US20130290466A1 (en) * 2012-04-30 2013-10-31 Sk Telecom Co., Ltd. Method of providing content during hand-over and appartus therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106060605A (zh) * 2016-05-25 2016-10-26 清华大学深圳研究生院 一种基于cdn的直播流自适应方法和系统
WO2020143423A1 (zh) * 2019-01-10 2020-07-16 广州视源电子科技股份有限公司 视频流码率分配方法、装置及计算机可读存储介质

Also Published As

Publication number Publication date
CN105532012A (zh) 2016-04-27
CN105532012B (zh) 2019-10-22

Similar Documents

Publication Publication Date Title
JP7118237B2 (ja) 通信方法及び通信装置
US9338212B2 (en) Multi-interface adaptive bit rate session management
JP5986310B2 (ja) 情報を処理するための方法、転送プレーンデバイスおよび制御プレーンデバイス
US9942748B2 (en) Service provisioning system and method, and mobile edge application server and support node
EP3133784B1 (en) Data transmission control node, communication system and data transmission management method
JP2019520748A (ja) 無線通信方法及びデバイス
WO2016000151A1 (zh) 视频分发方法、设备和系统
US20220217611A1 (en) Service Configuration Method, Communication Apparatus, and Communication System
WO2017063427A1 (zh) 一种通信方法、装置及终端
US20230043261A1 (en) Communication method and apparatus
WO2019129115A1 (zh) 一种系统切换的方法及通信实体
WO2015161411A1 (zh) 承载控制方法及系统
WO2015165051A1 (zh) 数据传输方法及设备
WO2011144164A1 (zh) 数据传输方法、设备及系统
WO2019201322A1 (zh) 一种通信方法及相关设备
WO2017028289A1 (zh) 一种网络终端设备进行通信的方法及装置
WO2011109938A1 (zh) 无线接入网元信息上报方法、设备和系统
WO2015021591A1 (zh) 互联网内容存储方法和设备
WO2018082070A1 (zh) 一种数据报文处理方法及控制面网元、用户面网元
WO2015165069A1 (zh) 用于传输下行数据的方法、移动性管理网元、接入网设备和服务网关
US20190104439A1 (en) Data transmission method, apparatus, and system
WO2018045515A1 (zh) 一种数据分流方法及相关装置
KR102076816B1 (ko) 이종 네트워크 환경에서 차세대 네트워크 서비스를 제공하는 방법 및 장치
WO2016000097A1 (zh) 用于切换的方法、演进型基站以及移动管理实体
WO2021217573A1 (zh) 控制数据传输速率的方法、装置、通信设备及存储介质

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480002447.0

Country of ref document: CN

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

Ref document number: 14896519

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: 14896519

Country of ref document: EP

Kind code of ref document: A1