CN105532012A

CN105532012A - Video delivery method, device and system

Info

Publication number: CN105532012A
Application number: CN201480002447.0A
Authority: CN
Inventors: 韩厚晓; 夏渊; 赵文军; 陈潇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2016-04-27
Anticipated expiration: 2034-06-30
Also published as: WO2016000151A1; CN105532012B

Abstract

Provided are a video delivery method, device and system, the method comprising: obtaining determination information of a user equipment (UE) when a video optimization gateway (VOG) receives a request for a target video transmitted by the UE, the determination information comprising at least one of user subscription information of the UE, terminal capability information and current network status information; the VOG determines a target video parameter for the UE according to the determination information, the target video parameter comprising at least one of the resolution, frame rate, code rate, and codec type; based on the target video parameter, the VOG obtains from a content delivery network (CDN) control node a storage address of a target copy from among multiple copies of the target video; and the VOG obtains the target copy according to the storage address. By transmitting to a user a suitable copy obtained from a CDN system via the VOG and providing a suitable video copy for a user according to the current network status, the video traffic load of a mobile broadband network can be reduced and user experience can be improved.

Description

Video delivery method, device and system

Method of video distribution, equipment and systems technology field

The present invention relates to areas of information technology, and more particularly, to a kind of method of video distribution, equipment and system.Background technology

Third generation partner program（3rd Generation Partnership Project, 3GPP) tissue proposes the grouping system of evolution（Evolved Packet System, EPS), it is intended to flattening network structure, reduces network layer, compatible a variety of wireless access technologys meet user to broadband, mobile increasing need there is provided the wireless access speed of more high speed.Large driving force, the major part moved integrally at present in data traffic is occupied by mobile video flow, and the ratio of mobile video flow will continue to rise.Because there is limitation in radio communication, such as Radio Access Network bandwidth stability is poor, frequency spectrum resource bottleneck, multiple users share limited resources etc., Mobile Network Operator will face the impact of video flow soaring rapidly, and challenge is caused to Consumer's Experience and network capacity.

Mobile broadband network and content distributing network（Content Delivery Network, CDN) combination the flow pressure that above-mentioned Video Applications be brought can be solved with Slow.CDN can deposit node by hot video content or with the presence of the prior Slow of video of content supplier's offer of the cooperative relationship video Slow nearer from user, and CDN system can re-direct the request of user on the service node nearest from user, user is obtained required content nearby, solve the situation of network congestion.CDN systems only cause user to choose node nearby and obtain video copy, but network quality is not good or network congestion in the case of still choose the video copy that node Slow is deposited nearby when, the further deterioration of network condition is may result in, Consumer's Experience is influenceed.The content of the invention

The embodiment of the present invention provides a kind of method of video distribution, equipment and system, and the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate the video flow pressure of mobile broadband network, improves Consumer's Experience.

First aspect there is provided a kind of method of video distribution, including：Connect in video optimized gateway VOG When receiving the video request for being directed to target video of user equipment (UE) transmission, the judgement information of the UE is obtained, wherein described judge at least one of information user signing contract information, terminal ability information and current network state information including the UE；The VOG determines the target video parameter for the UE according to the judgement information, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes；The VOG obtains the target copy according to the storage address.

With reference in a first aspect, in the first implementation of first aspect, the video request includes the mark of the UE, the judgement information of the acquisition UE includes：The user signing contract information and terminal ability information of the UE are determined according to the mark of the UE, and determine current network state information.

With reference to first aspect and its above-mentioned implementation, in second of implementation of first aspect, the video request includes the uniform resource position mark URL of the target video, before the storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, methods described also includes：The URL is sent to the CDN control nodes;The copy parameter of each copy in multiple copies of the CDN control nodes according to the URL target videos sent is received, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

With reference to first aspect and its above-mentioned implementation, in the third implementation of first aspect, the storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, including：The target copy for determining to match with the target video parameter according to the copy parameter of each copy；Determine the storage address of the target copy.

With reference to first aspect and its above-mentioned implementation, in the 4th kind of implementation of first aspect, the storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, including：The request message for carrying the URL and the target video parameter is sent to the CDN control nodes, in order to which the CDN node determines the target copy that is matched with the target video parameter in multiple copies of the URL target videos indicated, and determine the storage address of the target copy；Receive the storage address for the target copy that the CDN control nodes are sent.

With reference to first aspect and its above-mentioned implementation, in the 5th kind of implementation of first aspect, the VOG obtains the target copy according to the storage address, including：Pointed to from the storage address The corresponding server of CDN node read the target copy；The VOG is obtained according to the storage address after the target copy, in addition to：The target copy is sent to the UE.

With reference to first aspect and its above-mentioned implementation, in the 6th kind of implementation of first aspect, methods described also includes：According to the video request received, the video temperature information of the target video is counted；The video temperature information is sent to the CDN control nodes, in order to which the CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；At least one described hot video is obtained from the CDN control nodes, and Slow deposits at least one described hot video.

Second aspect there is provided a kind of method of video distribution, including：Content distributing network CDN control nodes receive the request message for target video that video optimized gateway VOG is sent；The CDN control nodes send the copy information of the target video according to the request message to the VOG, in order to which the VOG obtains the target copy of the target video according to the copy information.

With reference to second aspect, in the first implementation of second aspect, the request message for target video includes the uniform resource position mark URL of the target video, the CDN control nodes send the copy information of the target video according to the request message to the VOG, including：The copy parameter of each copy in multiple copies of the target video is determined according to the URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；The copy parameter of each copy in the multiple copy is sent to the VOG, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from the storage address reads the target copy, wherein described target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, the target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

With reference to second aspect and its above-mentioned implementation, in second of implementation of second aspect, the target video parameter for the user equipment (UE) for initiating video request that the uniform resource position mark URL and the VOG that the request message for target video includes the target video are determined, wherein described target video parameter is by user signing contract informations of the VOG according to the UE, at least one of terminal ability information and current network state information are determined, the target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

With reference to second aspect and its above-mentioned implementation, in the third implementation of second aspect, institute The copy information that CDN control nodes send the target video according to the request message to the VOG is stated, including：The target copy matched with the target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of the target copy；The storage address of the target copy is sent to the VOG, in order to which the VOG corresponding servers of CDN node pointed to from the storage address read the target copy.

The third aspect there is provided a kind of video optimized gateway, including：Acquiring unit, for the video optimized gateway VOG receive user equipment (UE) transmission for target video video request when, the judgement information of the UE is obtained, wherein described judge that information includes at least one of user signing contract information, terminal ability information and current network state information of the UE；Determining unit, for the just blunt target video parameter determined according to the judgement information for the UE, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The acquiring unit is additionally operable to the storage address from the target copy in multiple copies of the content distributing network CDN control nodes acquisition target video according to the target video parameter；The acquiring unit is additionally operable to obtain the target copy according to the storage address.

With reference to the third aspect, in the first implementation of the third aspect, the video request includes the mark of the UE, the acquiring unit specifically for：The user signing contract information and terminal ability information of the UE are determined according to the mark of the UE, and determine current network state information.

With reference to the third aspect and its above-mentioned implementation, in second of implementation of the third aspect, the video request includes the uniform resource position mark URL of the target video, and the VOG also includes transmitting element and receiving unit, and the transmitting element is used for：The URL is sent to the CDN control nodes;The receiving unit is used for the copy parameter for receiving each copy in multiple copies of the CDN control nodes according to the URL target videos sent, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

With reference to the third aspect and its above-mentioned implementation, in the third implementation of the third aspect, the determining unit specifically for：The target copy for determining to match with the target video parameter according to the copy parameter of each copy；Determine the storage address of the target copy.

With reference to the third aspect and its above-mentioned implementation, in the 4th kind of implementation of the third aspect, the VOG also includes transmitting element and receiving unit, and the transmitting element is used for：The request message for carrying the URL and the target video parameter is sent to the CDN control nodes, in order to which the CDN nodes determine to join with the target video in multiple copies of the URL target videos indicated The target copy of number matching, and determine the storage address of the target copy；The receiving unit is used for：Receive the storage address for the target copy that the CDN control nodes are sent.

With reference to the third aspect and its above-mentioned implementation, in the 5th kind of implementation of the third aspect, the acquiring unit specifically for：The corresponding server of CDN node pointed to from the storage address reads the target copy；The transmitting element is additionally operable to：The target copy is sent to the UE.

With reference to the third aspect and its above-mentioned implementation, in the 6th kind of implementation of the third aspect, the VOG also includes statistic unit and transmitting element, and the statistic unit is used for：According to the video request received, the video temperature information of the target video is counted；The video temperature information is sent to the CDN control nodes by the transmitting element, in order to which the CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；The acquiring unit is additionally operable to：At least one described hot video is obtained from the CDN control nodes, and Slow deposits at least one described hot video.

Fourth aspect there is provided a kind of content distributing network control node, including：Receiving unit, for receiving the request message for target video that video optimized gateway VOG is sent；Transmitting element, the copy information for sending the target video to the VOG according to the request message, in order to which the VOG obtains the target copy of the target video according to the copy information.

With reference to fourth aspect, in the first implementation of fourth aspect, the request message for target video includes the uniform resource position mark URL of the target video, and the CDN control nodes also include determining unit, the determining unit specifically for：The copy parameter of each copy in multiple copies of the target video is determined according to the URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；The copy parameter of each copy in the multiple copy is sent to the VOG by the transmitting element, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from the storage address reads the target copy, wherein described target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, the target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

With reference to fourth aspect and its above-mentioned implementation, in second of implementation of fourth aspect, the target video parameter for the user equipment (UE) for initiating video request that the uniform resource position mark URL and the VOG that the request message for target video includes the target video are determined, wherein institute State target video parameter to be determined according at least one of the user signing contract information of the UE, terminal ability information and current network state information by the VOG, the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type.

With reference to fourth aspect and its above-mentioned implementation, in the third implementation of fourth aspect, the CDN control nodes also include determining unit, and the determining unit is used for：The target copy matched with the target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of the target copy；The storage address of the target copy is sent to the VOG by the transmitting element, in order to which the VOG corresponding servers of CDN node pointed to from the storage address read the target copy.

There is provided a kind of video distribution system in terms of 5th, including：Video optimized gateway VOG and content distributing network CDN control nodes, the VOG be used for receive user equipment (UE) transmission for target video video request when, the judgement information of the UE is obtained, wherein described judge that information includes at least one of user signing contract information, terminal ability information and current network state information of the UE；Target video parameter for the UE is determined according to the judgement information, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The storage address of target copy in the multiple copies for obtaining the target video from the CDN control nodes according to the target video parameter；The target copy is obtained according to the storage address；The content distributing network CDN control nodes are used to receive the request message for the target video that the VOG is sent；The copy information of the target video is sent to the VOG according to the request message, in order to which the VOG obtains the target copy of the target video according to the copy information.

The embodiment of the present invention determines the target video parameter for user equipment by video optimized gateway, and user is sent to from the suitable target copy of CDN system acquisition according to target video parameter, the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate the video flow pressure of mobile broadband network, Consumer's Experience is improved.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the network architecture diagram of one embodiment of the invention. Fig. 2 is the flow chart of the method for video distribution of one embodiment of the invention.

Fig. 3 is the flow chart of the method for video distribution of one embodiment of the invention.

Fig. 4 is the interaction figure of the method for video distribution of one embodiment of the invention.

Fig. 5 is the interaction figure of the method for video distribution of another embodiment of the present invention.

Fig. 6 is the interaction figure of the method for video distribution of another embodiment of the present invention.

Fig. 7 is the schematic block diagram of the video optimized gateway of one embodiment of the invention.

Fig. 8 is the schematic block diagram of the content distributing network control node of one embodiment of the invention.

Fig. 9 is the schematic block diagram of the video optimized gateway of another embodiment of the present invention.

Figure 10 is the schematic block diagram of the content distributing network control node of another embodiment of the present invention.Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made should all belong to the scope of protection of the invention.

Technical scheme, can apply to various communication systems, for example：Global system for mobile communications (GSM, Global System of Mobile communication), CDMA (CDMA, Code Division Multiple Access) system, WCDMA（WCDMA, Wideband Code Division Multiple Access Wireless), GPRS (GPRS, General Packet Radio Service), Long Term Evolution (LTE, Long Term Evolution) etc..

User equipment（UE, User Equipment), also referred to as mobile terminal（Mobile Terminal), mobile subscriber equipment etc. can be through wireless access network（For example, RAN, Radio Access Network) communicated with one or more core nets, user equipment can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.

Base station, can be the base station in GSM or CDMA（BTS, Base Transceiver Station) or WCDMA in base station（NodeB), it can also be the evolved base station in LTE（ENB or e-NodeB, evolutional Node B), the present invention is not limited, but for convenience of description, following embodiments are illustrated by taking Node B as an example.

Fig. 1 is the network architecture diagram of one embodiment of the invention. As shown in figure 1, EPS can include base station（By taking eNB as an example）, gateway（Serving Gateway, SGW), packet data gateway (Packet Data Network Gateway, PGW), mobile management entity (Mobility Management Entity, MME), "Policy and Charging Rules Function entity (Policy and Charging Rule Function, PCRF) constitute, the service optimization gateway of core-network side, such as video optimized gateway（Video Optimization Gateway, VOG), Packet Data Network can be integrated in as a logic functional block inside the Pass, it can also be disposed as an autonomous device, when being disposed as autonomous device, it can be connected by Sgi interfaces with packet data gateway and be deposited and optimization processing there is provided video Slow.

Content distributing network（Content Delivery Network, CDN) it is to build in packet data network（Packet Data Network, PDN) on a kind of distributed content delivery network.CDN system can include multiple service nodes, and at least one control node.CDN control nodes can using GSLB technology by the access of user point to apart from user it is nearest can provide the user the CDN service node of respective service, the CDN service node corresponds to the server for actually providing the user content.

Open interface between VOG and CDN, specifically, can configure the interface between VOG and CDN, or set up logical channel for VOG and CDN so that both can be communicated when building network or safeguarding network.It should be understood that CDN is logical network, VOG can be with CDN fringe node open interface or setting up logical channel, in order to be communicated.

When UE needs to obtain video data, video request can be initiated to base station, base station can be sent video request to VOG by gateway, and VOG determines to be transferred to the parameters such as resolution ratio, frame per second, code check, the code/decode type of video of the UE according to the terminal capability of the UE, user signing contract information and current network state.VOG obtains suitable video copy, and pass to user according to the parameter of the video that be transferred to UE of determination by the interface or logical channel between CDN from CDN.

Fig. 2 is the flow chart of the method for video distribution of one embodiment of the invention.Fig. 2 method can be performed by video optimized gateway VOG.

201, video optimized gateway VOG receive user equipment (UE) transmission for target video video request when, UE judgement information is obtained, where it is determined that information includes at least one of UE user signing contract information, terminal ability information and current network state information.

202, VOG according to target video parameter of the information determination for UE is judged, wherein target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type.

203, VOG according to target video parameter from content distributing network CDN control nodes obtain target video multiple copies in target copy storage address. 204, VOG obtain target copy according to storage address.

The embodiment of the present invention determines the target video parameter for user equipment by video optimized gateway, and user is sent to from the suitable target copy of CDN system acquisition according to target video parameter, the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate the video flow pressure of mobile broadband network, Consumer's Experience is improved.

Alternatively, as one embodiment, video request includes UE mark, and step 201 includes：UE user signing contract information and terminal ability information are determined according to UE mark, and determine current network state information.

It should be understood that, VOG is when obtaining the judgement information for UE, user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, UE mark can be international mobile subscriber identity (International Mobile Subscriber Identification, IMSI), identification number of mobile subscriber（Mobile Subscriber Identification Number, MSIN) and International Mobile Station Equipment Identification (International Mobile Equipment Identity, IMEI) etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable service quality（Quality of Service, QoS), code check, code/decode type of offer etc. are provided.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..

Alternatively, step 202, VOG determines the target video parameter for UE according to judgement information.Specifically, VOG can determine the code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is near One step determines above-mentioned parameter according to network state information, and network state it is poor when, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

Alternatively, as one embodiment, video request includes the URL of target video

URL, before step 203, method also include：URL is sent to CDN control nodes;The copy parameter of each copy in multiple copies of the CDN control nodes according to the URL target videos sent is received, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

The video request can be transmitted to CDN control nodes by VOG after video request is received.It should be understood that because CDN control nodes are not necessarily connected with VOG, video request can be finally transmitted to CDN control nodes by CDN system by the CDN fringe nodes being connected with VOG.CDN control nodes are received after video request, and the copy parameter of the multiple copies for the target video that the URL is pointed to can be determined according to the URL carried in video request.Specifically, because each copy of target video is stored on multiple different corresponding servers of CDN service node, CDN control nodes are sent to VOG after can collecting the copy parameter of multiple copies.The copy parameter of wherein different copies can with it is entirely different can also part it is different, identical two copies of such as resolution ratio, frame per second, code check, code/decode type can be stored in different addresses, or same storage address is stored with different copy of multiple resolution ratio, frame per second, code check, encoding and decoding, etc..It should also be understood that multiple copy parameters that CDN control nodes collect can be the copy parameter of all copies of target video, or the copy parameter of part copy, the present invention is not limited this.

Alternatively, as one embodiment, step 203 includes：The target copy for determining to match with target video parameter according to the copy parameter of each copy；Determine the storage address of target copy.

After the copy parameter of multiple copies of CDN control nodes transmission is received, VOG can determine copy corresponding with the copy parameter of the target video parameter matching of VOG determinations in the copy parameter of above-mentioned multiple copies, and determine that the copy is target copy.Specifically, VOG can determine whether to have in the copy parameter of multiple copies first with the identical copy parameter of target video parameter, if so, then directly determining that identical copy parameter correspondence copy is target copy；If not provided, the copy parameter being closer to target video parameter can be selected.It is determined that after target copy, correspondingly can directly determine its storage address according to the copy parameter of the target copy.

Alternatively, as one embodiment, step 203 includes：The request message for carrying URL and target video parameter is sent to CDN control nodes, in order to which CDN node determines the target copy that is matched with target video parameter in multiple copies of the URL target videos indicated, and depositing for target copy is determined Store up address；Receive the storage address for the target copy that CDN control nodes are sent.

Specifically, after VOG determines the target video parameter for UE according to the judgement information of acquisition, VOG can send URL and target video parameter to CDN control nodes, the copy parameter matched with target video parameter is determined in copy parameter of the CDN control nodes in multiple copies of target video, similarly, CDN control nodes can determine whether have in the copy parameter of multiple copies and the identical copy parameter of target video parameter, if so, the storage address in the copy parameter then is sent into VOG;If not provided, the copy parameter being closer to target video parameter can be selected, and storage address is sent to VOG.

Alternatively, as one embodiment, step 204 includes：The corresponding server of CDN node pointed to from storage address reads target copy；VOG is obtained according to storage address after target copy, in addition to：Target copy is sent to UE.

VOG it is determined that target copy storage address or from CDN control nodes receive target copy storage address after, target copy from the corresponding server of corresponding CDN service node can be obtained according to the storage address.

Alternatively, as one embodiment, method also includes：According to the video request received, the video temperature information of target video is counted；Video temperature information is sent to CDN control nodes, in order to which CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；At least one hot video is obtained from CDN control nodes, and Slow deposits at least one hot video.

It should be understood that, VOG can determine video temperature information according to the number of times received for the video request of target video, CDN control nodes can collect the video temperature information of multiple videos, at least one video of video temperature highest is therefrom determined, the N number of video for for example determining video request number of times top ranked is hot video.At least one hot video Slow of determination is deposited to VOG, directly to provide the user video when receiving the subsequent request for hot video with VOG.

Fig. 3 is the flow chart of the method for video distribution of one embodiment of the invention.Fig. 3 method is performed by CDN control nodes.

301, content distributing network CDN control node receive the request message for target video that video optimized gateway VOG is sent. 302, CDN control nodes send the copy information of target video according to request message to VOG, in order to which VOG obtains the target copy of target video according to copy information.

VOG receive user equipment (UE) transmission for target video video request when, the request message can be forwarded to CDN control nodes by VOG, or send after treatment to CDN control nodes.Specifically, the request message carries the URL of the target video of UE requests, and the request message can also further carry the target video parameter for the UE of VOG determinations.

Alternatively, as one embodiment, the uniform resource position mark URL of target video is included for the request message of target video, CDN control nodes send the copy information of target video according to request message to VOG, including：The copy parameter of each copy in multiple copies of target video is determined according to URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；The copy parameter of each copy in multiple copies is sent to VOG, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from storage address reads target copy, wherein target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

The request message can be transmitted to CDN control nodes by VOG after the video request of UE transmissions is received.It should be understood that because CDN control nodes are not necessarily connected with VOG, video request can be finally transmitted to CDN control nodes by CDN system by the CDN fringe nodes being connected with VOG.CDN control nodes are received after video request, and the copy parameter of the multiple copies for the target video that the URL is pointed to can be determined according to the URL carried in video request.Specifically, because each copy of target video is stored on multiple different corresponding servers of CDN service node, CDN control nodes are sent to VOG after can collecting the copy parameter of multiple copies.The copy parameter of wherein different copies can with it is entirely different can also part it is different, identical two copies of such as resolution ratio, frame per second, code check, code/decode type can be stored in different addresses, or same storage address is stored with different copy of multiple resolution ratio, frame per second, code check, encoding and decoding, etc..It should also be understood that multiple copy parameters that CDN control nodes collect can be the copy parameter of all copies of target video, or part copy Copy parameter, the present invention this is not limited.

Before or after the copy information that CDN control nodes send target video to VOG, VOG can determine to be directed to UE target video parameter according to information is judged, judge that information is obtained by VOG, including at least one of user signing contract information, terminal ability information and network state information, wherein user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, and UE mark can be IMSI, MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..The code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported can be determined according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

After the copy parameter of multiple copies of CDN control nodes transmission is received, VOG can determine copy corresponding with the copy parameter of the target video parameter matching of VOG determinations in the copy parameter of above-mentioned multiple copies, and determine that the copy is target copy.Specifically, VOG can determine whether to have in the copy parameter of multiple copies first with the identical copy parameter of target video parameter, if so, then directly determining that identical copy parameter correspondence copy is target copy；If not provided, the copy parameter being closer to target video parameter can be selected., correspondingly can be according to the mesh it is determined that after target copy The copy parameter of mark copy directly determines its storage address.

Alternatively, it is used as one embodiment, include the target video parameter for being directed to the user equipment (UE) for initiating video request that the uniform resource position mark URL and VOG of target video are determined for the request message of target video, wherein target video parameter is determined by VOG according at least one of UE user signing contract information, terminal ability information and current network state information, and target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type.

After the video request that VOG receives UE transmissions, VOG can determine to be directed to UE target video parameter according to information is judged, judge that information is obtained by VOG, including at least one of user signing contract information, terminal ability information and network state information, wherein user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, and UE mark can be IMSL MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..Target video parameter for UE is determined by VOG according to judgement information, specifically, VOG can determine the code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferably, the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, improve Consumer's Experience.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

Alternatively, as one embodiment, CDN control nodes send the copy information of target video according to request message to VOG, including：Determined and mesh in multiple copies of the URL target videos indicated The target copy of video parameter matching is marked, and determines the storage address of target copy；The storage address of target copy is sent to VOG, in order to which the VOG corresponding servers of CDN node pointed to from storage address read target copy.

After the determination of target video parameter, VOG can send the URL for target video and the target video parameter for UE to CDN control nodes.The copy parameter matched with target video parameter is determined in copy parameter of the CDN control nodes in multiple copies of target video, similarly, CDN control nodes can determine whether have in the copy parameter of multiple copies and the identical copy parameter of target video parameter, if so, the storage address in the copy parameter then is sent into VOG;If not provided, the copy parameter being closer to target video parameter can be selected, and storage address is sent to VOG, in order to which VOG obtains target copy according to the storage address from the corresponding server of corresponding CDN service node.

5401, video request.

UE initiates the video request for target video to VOG, and the wherein request carries the URL of target video, or other are capable of the mark of the unique mark target video.Alternatively, the video request can also carry UE mark, such as IMSI, MSIN, IMEI.

5402, forward video request.

VOG is received and CDN control nodes is forwarded the request to after video request, i.e., the URL of target video is forwarded into CDN control nodes.

5403, the copy parameter of each copy.

CDN control nodes are received after video request, and the copy parameter of the multiple copies for the target video that the URL is pointed to can be determined according to the URL carried in video request.Specifically, because each copy of target video is stored on multiple different corresponding servers of CDN service node, CDN control nodes are sent to VOG after can collecting the copy parameter of multiple copies.The copy parameter of wherein different copies can with it is entirely different can also part it is different, identical two copies of such as resolution ratio, frame per second, code check, code/decode type can be stored in different addresses, or same storage address is stored with different copy of multiple resolution ratio, frame per second, code check, encoding and decoding, etc..It should also be understood that CDN control sections Multiple copy parameters that point collects can be the copy parameter of all copies of target video, or the copy parameter of part copy, the present invention is not limited this.

S404, the target video parameter for UE is determined according to judgement information.

Step S404 can be after the step S401 and before step S405 random time point perform, the present invention is not limited this.

After the video request that VOG receives UE transmissions, the judgement information for UE can be obtained first, where it is determined that information includes at least one of UE user signing contract information, terminal ability information and current network state information.Specifically, user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, and UE mark can be IMSI, MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..The code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported can be determined according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

S405, determines the storage address of target copy.

The copy for each copy that VOG is sent according to the CDN control nodes received in step S403 The target video parameter determined in parameter, and step S404, it may be determined that the corresponding copy of copy parameter that can be matched in the copy parameter of above-mentioned each copy with target video parameter, and the copy is defined as target copy.Specifically, VOG can determine whether to have in the copy parameter of multiple copies first with the identical copy parameter of target video parameter, if so, then directly determining that identical copy parameter correspondence copy is target copy；If not provided, the copy parameter being closer to target video parameter can be selected.It is determined that after target copy, correspondingly can directly determine its storage address according to the copy parameter of the target copy.

5406, obtain target copy.

VOG from the corresponding server of corresponding CDN service node can obtain target copy it is determined that after the storage address of target copy according to the storage address.

5407, issue target copy.

VOG using the target copy got as video stream to UE, to respond UE video request.

S501, video request.

S502, the target video parameter for UE is determined according to judgement information.

After the video request that VOG receives UE transmissions, the judgement information for UE can be obtained, where it is determined that information includes at least one of UE user signing contract information, terminal ability information and current network state information.Specifically, user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, and UE mark can be IMSI, MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc.. The code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported can be determined according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

S503, sends URL and target video parameter.

VOG sends the request message of the target video parameter that VOG is determined in the URL and step S502 that carry target video to CDN control nodes.

5504, determine target copy.

CDN control nodes are received after request message, CDN control nodes determine the copy parameter matched with target video parameter in the copy parameter of multiple copies of target video, CDN control nodes can determine whether have in the copy parameter of multiple copies and the identical copy parameter of target video parameter, if so, the copy with the copy parameter then is defined as into target copy；If not provided, copy corresponding with the copy parameter that target video parameter is closer to can be selected as target copy.

5505, the storage address of target copy.

CDN control nodes are determined after target copy, the storage address of target copy can be sent into VOG.

S506, obtains target copy.

S507, issues target copy.

Fig. 6 is the interaction figure of the method for video distribution of another embodiment of the present invention. S601, video request.

S602, counts video temperature information and reports.

VOG determines the video temperature information of target video according to the number of times received for the video request of target video.It should be understood that in addition to target video, VOG can also count the video temperature information that other were requested or be requested video.Complete after statistics, video temperature information is reported to CDN control nodes.

S603, determines hot video.

CDN control nodes, which are received, to be come from after the video temperature information that VOG is reported, the video temperature information that each VOG is reported can be collected, and at least one hot video is determined, the N number of video for determining video request number of times top ranked is for example defined as hot video.

5604, push hot video.

At least one hot video of determination is sent to VOG, or the storage address of hot video is sent to VOG, to obtain hot video from corresponding CDN service node with VOG.

5605, Slow deposit hot video.

VOG gets after hot video and deposited locally carrying out Slow, in order to directly provide the user video when receiving the subsequent request for hot video.

Fig. 7 is the schematic block diagram of the video optimized gateway of one embodiment of the invention.Fig. 7 video optimized gateway VOG 70 includes acquiring unit 71 and determining unit 72.

Acquiring unit 71 VOG 70 receive user equipment (UE) transmission for target video video request when, UE judgement information is obtained, where it is determined that information includes at least one of UE user signing contract information, terminal ability information and current network state information；Determining unit 72 is just blunt according to target video parameter of the information determination for UE is judged, wherein target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；Acquiring unit 71 according to target video parameter from content distributing network CDN control nodes obtain target video multiple copies in target copy storage address；Acquiring unit 71 obtains target copy according to storage address.

The embodiment of the present invention determines the target video parameter for user equipment by video optimized gateway VOG 70, and user is sent to from the suitable target copy of CDN system acquisition according to target video parameter, the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate The video flow pressure of mobile broadband network, improves Consumer's Experience.

Alternatively, as one embodiment, video request includes UE mark, acquiring unit 71 specifically for：UE user signing contract information and terminal ability information are determined according to UE mark, and determine current network state information.

It should be understood that VOG 70 acquiring unit 71 is when obtaining the judgement information for UE, user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, UE mark can be IMSI, MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..

Optionally it is determined that unit 72 determines to be directed to UE target video parameter specifically for the judgement information obtained according to acquiring unit 71.Specifically, VOG 70 determining unit 72 can determine the code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG 70 determining unit 72 can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG 70 can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG 70 determining unit 72 can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG 70 further determines above-mentioned parameter according to network state information again, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

Alternatively, as one embodiment, video request includes the uniform resource position mark URL of target video, and VOG 70 also includes transmitting element 73 and receiving unit 74, and transmitting element 73 is used for：URL is sent to CDN control nodes;Receiving unit 74 is used for the copy parameter for receiving each copy in multiple copies of the CDN control nodes according to the URL target videos sent, wherein the copy parameter of each copy At least one of resolution ratio, frame per second, code check, code/decode type and storage address including each copy.

The video request can be transmitted to CDN control nodes by VOG 70 after video request is received by receiving unit 74.It should be understood that because CDN control nodes are not necessarily connected with VOG 70, video request can be finally transmitted to CDN control nodes by CDN system by the CDN fringe nodes being connected with VOG 70.CDN control nodes are received after video request, and the copy parameter of the multiple copies for the target video that the URL is pointed to can be determined according to the URL carried in video request.Specifically, because each copy of target video is stored on multiple different corresponding servers of CDN service node, CDN control nodes, which can collect, to be sent after the copy parameter of multiple copies to VOG 70.The copy parameter of wherein different copies can with it is entirely different can also part it is different, identical two copies of such as resolution ratio, frame per second, code check, code/decode type can be stored in different addresses, or same storage address is stored with different copy of multiple resolution ratio, frame per second, code check, encoding and decoding, etc..It should also be understood that

Multiple copy parameters that CDN control nodes collect can be the copy parameter of all copies of target video, or the copy parameter of part copy, the present invention is not limited this.

Alternatively, as one embodiment, determining unit 72 specifically for：The target copy for determining to match with target video parameter according to the copy parameter of each copy；Determine the storage address of target copy.

After the copy parameter of multiple copies of CDN control nodes transmission is received, VOG 70 determining unit 72 can determine copy corresponding with the copy parameter of the target video parameter matching of the determinations of VOG 70 in the copy parameter of above-mentioned multiple copies, and determine that the copy is target copy.Specifically, VOG

70 can determine whether to have in the copy parameter of multiple copies first with the identical copy parameter of target video parameter, if so, then directly determining that identical copy parameter correspondence copy is target copy；If not provided, the copy parameter being closer to target video parameter can be selected.It is determined that after target copy, correspondingly can directly determine its storage address according to the copy parameter of the target copy.

Alternatively, as one embodiment, VOG 70 includes transmitting element 73 and receiving unit 74, and transmitting element 73 is used for：The request message for carrying URL and target video parameter is sent to CDN control nodes, in order to which CDN node determines the target copy that is matched with target video parameter in multiple copies of the URL target videos indicated, and the storage address of target copy is determined；Receiving unit 74 is used for the storage address for receiving the target copy of CDN control nodes transmission.

Specifically, after VOG 70 determines the target video parameter for UE according to the judgement information of acquisition, VOG 70 can be sent URL and target video parameter to CDN control nodes by transmitting element 73, the copy parameter matched with target video parameter is determined in copy parameter of the CDN control nodes in multiple copies of target video, similarly, CDN control nodes can determine the pair of multiple copies Whether have in this parameter with the identical copy parameter of target video parameter, if so, the storage address in the copy parameter then is sent into VOG 70;If not provided, the copy parameter being closer to target video parameter can be selected, and storage address is sent to VOG 70.

Alternatively, as one embodiment, acquiring unit 71 specifically for：The corresponding server of CDN node pointed to from storage address reads target copy；Transmitting element 73 is additionally operable to：Target copy is sent to UE.VOG 70 it is determined that target copy storage address or from CDN control nodes receive target copy storage address after, target copy from the corresponding server of corresponding CDN service node can be obtained according to the storage address.

Alternatively, as one embodiment, the VOG 70 also bag statistic units, statistic unit is used for：According to the video request received, the video temperature information of target video is counted；Video temperature information is sent to CDN control nodes by transmitting element 73, in order to which CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；Acquiring unit 71 is additionally operable to obtain at least one hot video from CDN control nodes, and Slow deposits at least one hot video.

It should be understood that, VOG 70 can determine video temperature information according to the number of times received for the video request of target video, CDN control nodes can collect the video temperature information of multiple videos, at least one video of video temperature highest is therefrom determined, the N number of video for for example determining video request number of times top ranked is hot video.At least one hot video Slow of determination is deposited to VOG 70, directly to provide the user video when receiving the subsequent request for hot video with VOG 70.

The embodiment of the present invention determines the target video parameter for user equipment by video optimized gateway VOG 70, and user is sent to from the suitable target copy of CDN system acquisition according to target video parameter, the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate the video flow pressure of mobile broadband network, Consumer's Experience is improved.

Fig. 8 is the schematic block diagram of the content distributing network control node of one embodiment of the invention.Fig. 8 CDN control nodes 80 include receiving unit 81 and transmitting element 82.

Receiving unit 81 receives the request message for target video that video optimized gateway VOG is sent；Transmitting element 82 sends the copy information of target video according to request message to VOG, in order to which VOG obtains the target copy of target video according to copy information.

The embodiment of the present invention determines the target video parameter for user equipment by video optimized gateway, and user is sent to from the suitable target copy of CDN system acquisition according to target video parameter, the video copy for meeting user's request can be provided the user according to current network conditions, so as to mitigate the video flow pressure of mobile broadband network, Consumer's Experience is improved. VOG receive user equipment (UE) transmission for target video video request when, the request message can be forwarded to CDN control nodes 80 by VOG, or send after treatment to CDN control nodes 80.Specifically, the request message carries the URL of the target video of UE requests, and the request message can also further carry the target video parameter for the UE of VOG determinations.

Alternatively, as one embodiment, include the uniform resource position mark URL of target video for the request message of target video, CDN control nodes 80 also include determining unit 83, determining unit 83 specifically for：The copy parameter of each copy in multiple copies of target video is determined according to URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；The copy parameter of each copy in multiple copies is sent to VOG by transmitting element 82, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from storage address reads target copy, wherein target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

The request message can be transmitted to CDN control nodes 80 by VOG after the video request of UE transmissions is received.It should be understood that because CDN control nodes 80 are not necessarily connected with VOG, video request can be finally transmitted to CDN control nodes 80 by CDN system by the CDN fringe nodes being connected with VOG.CDN control nodes 80 are received after video request by receiving unit 81, and the copy parameter of the multiple copies for the target video that the URL is pointed to can be determined according to the URL carried in video request.Specifically, because each copy of target video is stored on multiple different corresponding servers of CDN service node, CDN control nodes 80 are sent to VOG after can collecting the copy parameter of multiple copies by transmitting element 82.The copy parameter of wherein different copies can with it is entirely different can also part it is different, identical two copies of such as resolution ratio, frame per second, code check, code/decode type can be stored in different addresses, or same storage address is stored with different copy of multiple resolution ratio, frame per second, code check, encoding and decoding, etc..It should also be understood that multiple copy parameters that CDN control nodes 80 collect can be the copy parameter of all copies of target video, or the copy parameter of part copy, the present invention is not limited this.

Before or after the copy information that CDN control nodes 80 send target video to VOG, VOG can determine to be directed to UE target video parameter according to information is judged, judge that information is obtained by VOG, including at least one of user signing contract information, terminal ability information and network state information, wherein user signing contract information and terminal ability information can be obtained by the UE carried in video request mark Take, UE mark can be IMSI, MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..The code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported can be determined according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferable, then the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, Consumer's Experience is improved.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

After the copy parameter of multiple copies of the transmission of CDN control nodes 80 is received, VOG can determine copy corresponding with the copy parameter of the target video parameter matching of VOG determinations in the copy parameter of above-mentioned multiple copies, and determine that the copy is target copy.Specifically, VOG can determine whether to have in the copy parameter of multiple copies first with the identical copy parameter of target video parameter, if so, then directly determining that identical copy parameter correspondence copy is target copy；If not provided, the copy parameter being closer to target video parameter can be selected.It is determined that after target copy, correspondingly can directly determine its storage address according to the copy parameter of the target copy.

Alternatively, it is used as one embodiment, include the target video parameter for being directed to the user equipment (UE) for initiating video request that the uniform resource position mark URL and VOG of target video are determined for the request message of target video, wherein target video parameter is determined by VOG according at least one of UE user signing contract information, terminal ability information and current network state information, and target video parameter includes resolution ratio, frame At least one of rate, code check, code/decode type.

After the video request that V0G receives UE transmissions, VOG can determine to be directed to UE target video parameter according to information is judged, judge that information is obtained by VOG, including at least one of user signing contract information, terminal ability information and network state information, wherein user signing contract information and terminal ability information can be obtained by the UE carried in video request mark, and UE mark can be IMSL MSIN and IMEI etc..Specifically, VOG can be obtained according to UE mark from the server for the user profile that is stored with, and user signing contract information can include User Priority（Such as VIP user, domestic consumer）, acceptable QoS, allow the code check, the code/decode type etc. that provide.Terminal ability information can report acquisition by UE, can also be obtained by UE mark, and terminal ability information can indicate ultimate resolution, frame per second, code/decode type and video file type of video that UE is supported etc..Network state information can report acquisition, or core net to obtain by wireless side, to indicate network current unimpeded, Congestion Level SPCC or loading condition etc..Target video parameter for UE is determined by VOG according to judgement information, specifically, VOG can determine the code/decode type that the receptible ultimate resolutions of UE, frame per second, code check and UE are supported according to user signing contract information and terminal ability information, can additionally there is the video file type that UE is supported.Further, VOG can finally be determined as resolution ratio, frame per second, code check and the code/decode type of target video parameter according to current network state information.For example, if current network state is poor, load is higher, then VOG can reduce one or more on the basis of the receptible ultimate resolutions of UE, frame per second, code check, to reduce the pressure to Internet video flow, prevent further congestion.If current network state is preferably, the receptible ultimate resolutions of UE, frame per second, code check and the UE code/decode type supported can be defined as final target video parameter, in order to provide the user the video of better quality, improve Consumer's Experience.In addition, VOG can also determine resolution ratio, frame per second, the scope of code check and code/decode type according to user signing contract information and terminal ability information, VOG is further determining above-mentioned parameter according to network state information, and when network state is poor, above-mentioned parameter will not be reduced to below scope, it is ensured that the Consumer's Experience of some high-priority users.

Alternatively, as one embodiment, CDN control nodes 80 also include determining unit 83, and determining unit 83 is used for：The target copy matched with target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of target copy；The storage address of target copy is sent to VOG by transmitting element 82, in order to which the VOG corresponding servers of CDN node pointed to from storage address read target copy.

After the determination of target video parameter, VOG can send the URL for target video and the target video parameter for UE to CDN control nodes 80.By CDN control nodes 80 in target video Multiple copies copy parameter in determine the copy parameter that is matched with target video parameter, similarly,

CDN control nodes can determine whether to have in the copy parameter of multiple copies with the identical copy parameter of target video parameter, if so, the storage address in the copy parameter then is sent into VOG;If not provided, the copy parameter being closer to target video parameter can be selected, and storage address is sent to VOG, in order to which VOG obtains target copy according to the storage address from the corresponding server of corresponding CDN service node.

Fig. 9 is the schematic block diagram of the video optimized gateway of another embodiment of the present invention.Fig. 9 video optimized gateway 90 includes processor 91 and memory 92.Processor 91 is connected with memory 92 by bus system 93.

Memory 92, which is used to store, causes processor 91 to perform the instruction operated below：When receiving the video request for being directed to target video of user equipment (UE) transmission, UE judgement information is obtained, where it is determined that at least one of user signing contract information, terminal ability information and current network state information of information including UE；According to target video parameter of the information determination for UE is judged, wherein target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The storage address of target copy in the multiple copies for obtaining target video from content distributing network CDN control nodes according to target video parameter；Target copy is obtained according to storage address.

In addition, video optimized gateway 90 can also include radiating circuit 94, receiving circuit 95 etc..Processor 91 controls the operation of video optimized gateway 90, and processor 91 can also be referred to as CPU (Central Processing Unit, CPU）.Memory 92 can include read-only storage and random access memory, and provide instruction and data to processor 91.The a part of of memory 92 can also include nonvolatile RAM（ NVRAM ).Each component of video optimized gateway 90 is coupled by bus system 93, and wherein bus system 93 can also include power bus, controlling bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, will in figure Various buses are all designated as bus system 93.

The method that the embodiments of the present invention are disclosed can apply in processor 91, or be realized by processor 91.Processor 91 is probably a kind of IC chip, the disposal ability with signal.In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 91 or the instruction of software form.Above-mentioned processor 91 can be general processor, digital signal processor（DSP), application specific integrated circuit（ASIC), ready-made programmable gate array（) or other PLDs, discrete gate or transistor logic, discrete hardware components FPGA.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor can also be any conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor and perform completion, or perform completion with the hardware in decoding processor and software module combination.Software module can be located in random access memory, flash memory, read-only storage, the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 92, and processor 91 reads the information in memory 92, the step of completing the above method with reference to its hardware.

Alternatively, as one embodiment, video request includes UE mark, the basis of processor 91

UE mark determines UE user signing contract information and terminal ability information, and determines current network state information.

Alternatively, it is used as one embodiment, video request includes the uniform resource position mark URL of target video, before the storage address of target copy in multiple copies that VOG obtains target video according to target video parameter from content distributing network CDN control nodes, processor 91 sends URL by radiating circuit 94 to CDN control nodes;The copy parameter of each copy in multiple copies of the CDN control nodes according to the URL target videos sent is received by receiving circuit 95, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

Alternatively, as one embodiment, VOG according to target video parameter from content distributing network CDN control nodes obtain target video multiple copies in target copy storage address, including：The target copy that processor 91 determines to match with target video parameter according to the copy parameter of each copy；Determine the storage address of target copy.

Alternatively, as one embodiment, VOG according to target video parameter from content distributing network CDN control nodes obtain target video multiple copies in target copy storage address, including：The request message for carrying URL and target video parameter is sent to CDN control nodes by radiating circuit 94, in order to which CDN node is determined and target video parameter in multiple copies of the URL target videos indicated The target copy matched somebody with somebody, and determine the storage address of target copy；The storage address for the target copy that CDN control nodes are sent is received by receiving circuit 95.

Alternatively, as one embodiment, VOG obtains target copy according to storage address, and the corresponding server of the CDN node that processor 91 is pointed to by receiving circuit 95 from storage address reads target copy；VOG is obtained according to storage address after target copy, in addition to：Target copy is sent to UE by radiating circuit 94.

Alternatively, as one embodiment, processor 91 counts the video temperature information of target video according to the video request received；Video temperature information is sent to CDN control nodes by radiating circuit 94, in order to which CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；At least one hot video is obtained from CDN control nodes by receiving circuit 95, and Slow deposits at least one hot video.

Figure 10 is the schematic block diagram of the content distributing network control node of another embodiment of the present invention.Fig. 5 content distributing network control node 100 includes processor 101 and memory 102.Processor 101 is connected with memory 102 by bus system 103.

Memory 102, which is used to store, causes processor 101 to perform the instruction operated below：Receive the request message for target video that video optimized gateway VOG is sent；The copy information of target video is sent to VOG according to request message, in order to which VOG obtains the target copy of target video according to copy information.

In addition, CDN control nodes 100 can also include radiating circuit 104, receiving circuit 105 and antenna 106 etc..The operation of the control CDN of processor 101 control nodes 100, processor 101 can also be referred to as CPU (Central Processing Unit, CPU）.Memory 102 can include read-only storage and random access memory, and provide instruction and data to processor 101.The a part of of memory 102 can also include nonvolatile RAM（ NVRAM ).Each component of CDN control nodes 100 is coupled by bus system 103, and wherein bus system 103, which is removed, includes number Outside bus, power bus, controlling bus and status signal bus in addition etc. can also be included.But for the sake of clear explanation, various buses are all designated as bus system 103 in figure.

The method that the embodiments of the present invention are disclosed can apply in processor 101, or be realized by processor 101.Processor 101 is probably a kind of IC chip, the disposal ability with signal.In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 101 or the instruction of software form.Above-mentioned processor 101 can be general processor, digital signal processor（DSP), application specific integrated circuit（ASIC), ready-made programmable gate array（) or other PLDs, discrete gate or transistor logic, discrete hardware components FPGA.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor can also be any conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor and perform completion, or perform completion with the hardware in decoding processor and software module combination.Software module can be located in random access memory, flash memory, read-only storage, the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 102, and processor 101 reads the information in memory 102, the step of completing the above method with reference to its hardware.

Alternatively, as one embodiment, the uniform resource position mark URL of target video is included for the request message of target video, CDN control nodes 100 send the copy information of target video according to request message to VOG, including：Processor 101 determines the copy parameter of each copy in multiple copies of target video according to URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；The copy parameter of each copy in multiple copies is sent to VOG by radiating circuit 104, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from storage address reads target copy, wherein target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

Alternatively, it is used as one embodiment, include the target video parameter for being directed to the user equipment (UE) for initiating video request that the uniform resource position mark URL and VOG of target video are determined for the request message of target video, wherein target video parameter is determined by VOG according at least one of UE user signing contract information, terminal ability information and current network state information, and target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type. Alternatively, as one embodiment, CDN control nodes 100 send the copy information of target video according to request message to V0G, and processor 101 is used for：The target copy matched with target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of target copy；The storage address of target copy is sent to VOG by radiating circuit 94, in order to which the VOG corresponding servers of CDN node pointed to from storage address read target copy.

It should be understood that the terms " and/or ", a kind of only incidence relation for describing affiliated partner, expression may have three kinds of relations, for example, A and/or can represent：Individualism, while in the presence of these three situations of eight and ^ individualisms B.In addition, character "/" herein, typically represent forward-backward correlation object be it is a kind of " or " relation.

It should be understood that, in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.

Those of ordinary skill in the art are it is to be appreciated that the unit and algorithm steps of each example described with reference to the embodiments described herein, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.

It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system of foregoing description, device and unit may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, shown or discussed coupling each other or direct close or communication connection can be can be electrical, machinery or other forms by some interfaces, the INDIRECT COUPLING or communication connection of device or unit. It can be for the part that unit is shown or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.

If the function is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or the part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

Claim

1. a kind of method of video distribution, it is characterised in that including：

Video optimized gateway VOG receive user equipment (UE) transmission for target video video request when, the judgement information of the UE is obtained, wherein described judge that information includes at least one of user signing contract information, terminal ability information and current network state information of the UE；

The VOG determines the target video parameter for the UE according to the judgement information, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes；

The VOG obtains the target copy according to the storage address.

2. the method according to claim 1, it is characterised in that the video request includes the mark of the UE, the judgement information of the acquisition UE includes：The user signing contract information and terminal ability information of the UE are determined according to the mark of the UE, and determine current network state information.

3. according to the method described in claim 1, it is characterized in that, the video request includes the uniform resource position mark URL of the target video, before the storage address of target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, methods described also includes：

The URL is sent to the CDN control nodes;

The copy parameter of each copy in multiple copies of the CDN control nodes according to the URL target videos sent is received, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

4. method according to claim 3, it is characterised in that the storage address of the target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, including：

The target copy for determining to match with the target video parameter according to the copy parameter of each copy；

Determine the storage address of the target copy.

5. according to the method described in claim 1, it is characterised in that the storage address of the target copy in multiple copies that the VOG obtains the target video according to the target video parameter from content distributing network CDN control nodes, including：

The request for sending the carrying URL and the target video parameter to the CDN control nodes disappears Breath, in order to which the CDN node determines the target copy that is matched with the target video parameter in multiple copies of the URL target videos indicated, and determines the storage address of the target copy；Receive the storage address for the target copy that the CDN control nodes are sent.

6. the method according to claim 4 or 5, it is characterised in that the VOG obtains the target copy according to the storage address, including：The corresponding server of CDN node pointed to from the storage address reads the target copy；

The VOG is obtained according to the storage address after the target copy, in addition to：The target copy is sent to the UE.

7. according to the method described in claim 1, it is characterised in that methods described also includes：According to the video request received, the video temperature information of the target video is counted；

The video temperature information is sent to the CDN control nodes, in order to which the CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；At least one described hot video is obtained from the CDN control nodes, and Slow deposits at least one described hot video.

8. a kind of method of video distribution, it is characterised in that including：

Content distributing network CDN control nodes receive the request message for target video that video optimized gateway VOG is sent；

The CDN control nodes send the copy information of the target video according to the request message to the VOG, in order to which the VOG obtains the target copy of the target video according to the copy information.

9. method according to claim 8, it is characterized in that, the request message for target video includes the uniform resource position mark URL of the target video, and the CDN control nodes send the copy information of the target video according to the request message to the VOG, including：

The copy parameter of each copy in multiple copies of the target video is determined according to the URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；

The copy parameter of each copy in the multiple copy is sent to the VOG, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from the storage address reads the target copy, wherein described target video parameter is determined by the VOG according at least one of user signing contract information, terminal ability information and current network state information of user equipment (UE) for initiating video request The target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type.

10. method according to claim 8, it is characterized in that, the target video parameter for the user equipment (UE) for initiating video request that the uniform resource position mark URL and the VOG that the request message for target video includes the target video are determined, wherein described target video parameter is determined that the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type by the VOG according at least one of the user signing contract information of the UE, terminal ability information and current network state information.

11. method according to claim 10, it is characterised in that the CDN control nodes send the copy information of the target video according to the request message to the VOG, including：

The target copy matched with the target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of the target copy；

The storage address of the target copy is sent to the VOG, in order to which the VOG corresponding servers of CDN node pointed to from the storage address read the target copy.

12. a kind of video optimized gateway, it is characterised in that including：

Acquiring unit, for the video optimized gateway VOG receive user equipment (UE) transmission for target video video request when, the judgement information of the UE is obtained, wherein described judge that information includes at least one of user signing contract information, terminal ability information and current network state information of the UE；

Determining unit, for determining the target video parameter for the UE according to the judgement information, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The acquiring unit is additionally operable to the storage address from the target copy in multiple copies of the content distributing network CDN control nodes acquisition target video according to the target video parameter；

13. video optimized gateway according to claim 12, it is characterised in that the video request includes the mark of the UE, the acquiring unit specifically for：The user signing contract information and terminal ability information of the UE are determined according to the mark of the UE, and determine current network state information.

14. video optimized gateway according to claim 12, it is characterised in that the video request includes the uniform resource position mark URL of the target video, the VOG also includes transmitting element and receiving unit, and the transmitting element is used for：

The URL is sent to the CDN control nodes;

The receiving unit is used to receive the mesh that the CDN control nodes are sent according to the URL The copy parameter of each copy in multiple copies of video is marked, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy.

15. video optimized gateway according to claim 14, it is characterised in that the determining unit specifically for：

The target copy for determining to match with the target video parameter according to the copy parameter of each copy；

Determine the storage address of the target copy.

16. video optimized gateway according to claim 12, it is characterised in that the VOG also includes transmitting element and receiving unit, the transmitting element is used for：

The request message for carrying the URL and the target video parameter is sent to the CDN control nodes, in order to which the CDN node determines the target copy that is matched with the target video parameter in multiple copies of the URL target videos indicated, and determine the storage address of the target copy；The receiving unit is used for：Receive the storage address for the target copy that the CDN control nodes are sent.

17. the video optimized gateway according to claim 15 or 16, it is characterised in that the acquiring unit specifically for：The corresponding server of CDN node pointed to from the storage address reads the target copy；

The transmitting element is additionally operable to：The target copy is sent to the UE.

18. video optimized gateway according to claim 12, it is characterised in that the VOG also includes statistic unit and transmitting element, the statistic unit is used for：

According to the video request received, the video temperature information of the target video is counted；The video temperature information is sent to the CDN control nodes by the transmitting element, in order to which the CDN control nodes collect the video temperature information for multiple videos that VOG is reported, and at least one hot video is determined；

The acquiring unit is additionally operable to：At least one described hot video is obtained from the CDN control nodes, and Slow deposits at least one described hot video.

19. a kind of content distributing network control node, it is characterised in that including：

Receiving unit, for receiving the request message for target video that video optimized gateway VOG is sent；

Transmitting element, the pair for sending the target video to the VOG according to the request message This information, in order to which the VOG obtains the target copy of the target video according to the copy information.20. content distributing network control node according to claim 19, it is characterised in that the request message for target video includes the uniform resource position mark URL of the target video, described

CDN control nodes also include determining unit, the determining unit specifically for：

The copy parameter of each copy in multiple copies of the target video is determined according to the URL, wherein the copy parameter of each copy includes at least one of resolution ratio, frame per second, code check, code/decode type and storage address of each copy；

The copy parameter of each copy in the multiple copy is sent to the VOG by the transmitting element, in order to the storage address of the VOG target copies for determining to match with target video parameter according to the copy parameter of each copy, and the corresponding server of CDN node pointed to from the storage address reads the target copy, wherein described target video parameter is by user signing contract informations of the VOG according to the user equipment (UE) for initiating video request, at least one of terminal ability information and current network state information are determined, the target video parameter includes resolution ratio, frame per second, code check, at least one of code/decode type.

21. content distributing network control node according to claim 19, it is characterised in that the request message for target video includes the uniform resource position mark URL of the target video and described

The target video parameter for the user equipment (UE) for initiating video request that VOG is determined, wherein described target video parameter is determined that the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type by the VOG according at least one of the user signing contract information of the UE, terminal ability information and current network state information.

22. content distributing network control node according to claim 21, it is characterised in that the CDN control nodes also include determining unit, the determining unit is used for：

The target copy matched with the target video parameter is determined in multiple copies of the URL target videos indicated, and determines the storage address of the target copy；

The storage address of the target copy is sent to the VOG by the transmitting element, in order to which the VOG corresponding servers of CDN node pointed to from the storage address read the target copy.

23. a kind of video distribution system, it is characterised in that including：

Content distributing network CDN control nodes in video optimized gateway VOG and claim 19-22 in claim 12-18 described in any one described in any one,

The VOG is used to receive the video request for target video of user equipment (UE) transmission When, the judgement information of the UE is obtained, wherein described judge that information includes at least one of user signing contract information, terminal ability information and current network state information of the UE；It is just blunt to determine to be directed to the target video parameter of the UE according to the judgement information, wherein the target video parameter includes at least one of resolution ratio, frame per second, code check, code/decode type；The storage address of target copy in the multiple copies for obtaining the target video from the CDN control nodes according to the target video parameter；The target copy is obtained according to the storage address；

The content distributing network CDN control nodes are used to receive the request message for the target video that the VOG is sent；The copy information of the target video is sent to the VOG according to the request message, in order to which the VOG obtains the target copy of the target video according to the copy information.