CN104995923B - Video acceleration method, client and network element - Google Patents

Video acceleration method, client and network element Download PDF

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Publication number
CN104995923B
CN104995923B CN201380003779.6A CN201380003779A CN104995923B CN 104995923 B CN104995923 B CN 104995923B CN 201380003779 A CN201380003779 A CN 201380003779A CN 104995923 B CN104995923 B CN 104995923B
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China
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video
core
client
network element
network side
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CN201380003779.6A
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Chinese (zh)
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CN104995923A (en
Inventor
王斌
赵其勇
王峰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/613—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for the control of the source by the destination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate

Abstract

The embodiment of the present invention provides a kind of video acceleration method, client and network element, this method comprises: client is by perceiving the amount of video cached in play buffer, when amount of video is less than or equal to the lower limit of buffer threshold, video acceleration request is sent to core-network side network element, so that core-network side network element carries out acceleration downloading to the video buffered in play buffer, to guarantee that play buffer stores enough video datas, it realizes under mobile network environment, reduces client and the purpose of video cardton phenomenon occur.

Description

Video acceleration method, client and network element
Technical field
The present embodiments relate to field of video broadcasting technology more particularly to a kind of video acceleration methods, client and net Member.
Background technique
Currently, the video overwhelming majority that layer (Over the Top, OTT) video website provides on internet is to pass through Hypertext transfer protocol (Hyper Text Transport Protocol, HTTP), such as HTTP progressive download (HTTP Progressive Download, HPD), HTTP Streaming Media (HTTP Live Streaming, HLS) etc. to client transmissions, HPD and HLS uses transmission control protocol (Transmission Control Protocol, TCP) in transport layer.Due to The reliable transporting of Transmission Control Protocol, when network is more stable, client is generally not in Caton during playing video Phenomenon.With the continuous development of technology, client will do it downloading during playing video, for example, in screen buffer A certain amount of video of middle downloading, thus avoid as network fluctuation and caused by video stagnate；Meanwhile passing through flow control mechanism The pressure of server bandwidth when mitigating video download.
In the prior art, for example, visiing the Pacing scheme that the optimization such as special (Bytemobile) mobile videos company proposes, it is Bandwidth waste is avoided while reaching foradownloaded video, and reduces the influence to server bandwidth, generally in network side to video Downloading rate is adjusted, so that video download rate is mutually matched with video actual bit rate.As an example it is assumed that current view Frequency code rate is 500kbps, then can be consistent with video code rate by control downloading rate, and will have been downloaded in screen buffer wait broadcast The video put controlled in 5 seconds.
In above-mentioned technical proposal, since the downloading rate of video can be controlled, so that the number in the screen buffer of client It is not usually many according to measuring.However, changes in network condition is fast under mobile network environment, network connection is unstable, is easy to appear The phenomenon that video data speed of download relatively slow even interruption.After the data volume of screen buffer is exhausted, client occurs Video cardton phenomenon.
Summary of the invention
The embodiment of the present invention provides a kind of video acceleration method, client and network element, realizes under mobile network environment, reduces There is the purpose of video cardton phenomenon in client.
First aspect, the embodiment of the present invention provide a kind of video acceleration method, comprising:
Client determines the amount of video cached in play buffer；
The client judges whether the amount of video is less than or equal to the lower limit of buffer threshold；
If the amount of video is less than or equal to the lower limit of the buffer threshold, the client is sent out to core-network side network element Video acceleration is sent to request, so that under the core-network side network element accelerates the video buffered in the play buffer It carries.
In the possible implementation of in the first aspect the first, if the amount of video is less than or equal to described delay The lower limit of thresholding is deposited, then the client sends video acceleration request to core-network side network element, so that the core-network side network element Acceleration downloading is carried out to the video buffered in the play buffer, comprising:
If the amount of video is less than or equal to the lower limit of the buffer threshold, the client is being delayed to offer is described The server of the video of punching sends the video acceleration request, so that the server determines bandwidth needed for accelerating downloading simultaneously It is sent to the core-network side network element, so that under the core-network side network element accelerates the video buffered It carries.
In the possible implementation of second in the first aspect, the client judges whether the amount of video is less than Or equal to the lower limit of buffer threshold after, it is described if the amount of video is less than or equal to the lower limit of the buffer threshold Client to core-network side network element send video acceleration request so that the core-network side network element in the play buffer just Before the video of buffering carries out acceleration downloading, further includes:
The client determines the bandwidth for accelerating downloading required and requests to authenticate to the video acceleration.
In conjunction with the first or second of possible implementation of first aspect, first aspect, in the first aspect The third possible implementation in, if the amount of video is greater than the upper limit of the buffer threshold, the client is to core Heart net side network element sends release request, so that the core-network side network element reduces the dispatching priority of the video buffered Grade.
In conjunction with the third possible implementation of first aspect, the 4th kind of possible realization side in the first aspect In formula, if the amount of video is greater than the upper limit of the buffer threshold, the client is released to the transmission of core-network side network element Request is put, so that the core-network side network element reduces the dispatching priority of the video buffered, comprising:
If the amount of video is greater than the upper limit of the buffer threshold, clothes of the client to the offer current video Device of being engaged in sends release request, so that the server, which determines, reduces bandwidth that the dispatching priority needs to adjust and to the core Heart net side network element is sent, so that the core-network side network element reduces the dispatching priority of the video buffered.
In conjunction with the third possible implementation of first aspect, the 5th kind of possible realization side in the first aspect In formula, if the amount of video is greater than the upper limit of the buffer threshold, the client is released to the transmission of core-network side network element Request is put, so that before the dispatching priority of the core-network side network element reduction video buffered, further includes:
The client determines the bandwidth that the reduction dispatching priority needs to adjust and requests to authenticate to the release.
The second aspect, the embodiment of the present invention provide a kind of video acceleration method, comprising:
Core-network side network element receives the video acceleration request that client is sent, and the video acceleration request is the client When determining the amount of video cached in play buffer and judging that the amount of video is less than or equal to the lower limit of buffer threshold It sends；
The core-network side network element carries out acceleration downloading to the video buffered in the play buffer.
In the possible implementation of in the second aspect the first, the core-network side network element receives what client was sent Video acceleration request, comprising:
The core-network side network element receives the client and sends via the server for providing the video buffered The video acceleration request, the server determine acceleration downloading needed for bandwidth and to the video acceleration request Authentication；
The core-network side network element carries out acceleration downloading to the video buffered in the play buffer, comprising:
The core-network side network element accelerates to download required bandwidth and to the video according to what the server provided The authentication of acceleration request carries out acceleration downloading to the video buffered in the play buffer.
In the possible implementation of second in the second aspect, the core-network side network element is to the play buffer In the video that is buffering carry out acceleration downloading, comprising:
The core-network side network element accelerates to download required bandwidth and to the video according to what the client provided The authentication of acceleration request carries out acceleration downloading to the video buffered in the play buffer.
In conjunction with the first or second of possible implementation of the second aspect, the second aspect, in the second aspect The third possible implementation in, the core-network side network element receive the transmission of the client release request, it is described to release Putting request is that the client determines the amount of video cached in the play buffer and judges that the amount of video is greater than It is sent when the upper limit of the buffer threshold；
The core-network side network element reduces the dispatching priority of the video buffered.
In conjunction with the third possible implementation of the second aspect, the 4th kind of possible realization side in the second aspect In formula, the core-network side network element receives the release request of the transmission of the client, comprising:
The core-network side network element receives the client and sends via the server for providing the video buffered Release request, the reduction dispatching priority determined of the server needs the bandwidth adjusted and releases described Put the authentication of request；
The core-network side network element reduces the dispatching priority of the video buffered, comprising:
The bandwidth that the reduction dispatching priority that the core-network side network element is provided according to the server needs to adjust And the authentication to the release request, reduce the dispatching priority of the video buffered.
In conjunction with the third possible implementation of the second aspect, the 5th kind of possible realization side in the second aspect In formula, the core-network side network element receives the release request of the transmission of the client, comprising:
The bandwidth that the reduction dispatching priority that the core-network side network element is provided according to the client needs to adjust And the authentication to the release request, reduce the dispatching priority of the video buffered.
In terms of third, the embodiment of the present invention provides a kind of video acceleration method, comprising:
Wireless access net side network element according to the amount of video cached in play buffer, and/or, in the play buffer The radio link quality information of the video buffered determines the scheduling power of the video buffered in the play buffer Weight；
The wireless access net side network element judges whether the dispatch weight is higher than default weight；
If the dispatch weight is higher than default weight, the wireless access net side network element in the play buffer just Air-interface scheduling is carried out in the video of buffering, to carry out acceleration downloading to the video buffered in the play buffer.
In the possible implementation of in the third aspect the first, the wireless access net side network element is according to play buffering The amount of video cached in area, and/or, the radio link quality information of the video buffered in the play buffer, really Before the dispatch weight of the video buffered in the fixed play buffer, further includes:
The wireless access net side network element determines the amount of video cached in the play buffer；Alternatively,
The wireless access net side network element receives the amount of video information that client is sent, described in the amount of video information carries The amount of video cached in play buffer.
In conjunction in terms of third or the first possible implementation of third aspect, in the third aspect second In possible implementation, if the dispatch weight is lower than default weight, the wireless access net side network element is to the broadcasting The video buffered in buffer area carries out air-interface scheduling, to reduce the dispatching priority of the video buffered.
4th aspect, the embodiment of the present invention provide a kind of client, comprising:
Determining module, for determining the amount of video cached in play buffer；
Whether judgment module, the amount of video for judging that the determining module is determined are less than or equal to buffer threshold Lower limit；
Sending module, if judging that the amount of video is less than or equal under the buffer threshold for the judgment module Limit, then the client sends video acceleration request to core-network side network element, so that the core-network side network element is to the broadcasting The video buffered in buffer area carries out acceleration downloading.
In the possible implementation of in the fourth aspect the first, the sending module, if being specifically used for the judgement Module judges that the amount of video is less than or equal to the lower limit of the buffer threshold, then to the offer video buffered Server sends video acceleration request, so that the server determines bandwidth needed for accelerating downloading and to the core Net side network element is sent, so that the core-network side network element carries out acceleration downloading to the video buffered.
In the possible implementation of second in the fourth aspect, the client further include:
Processing module, for determining the bandwidth for accelerating downloading required and requesting to authenticate to the video acceleration.
In conjunction with the first or second of possible implementation of the 4th aspect, the 4th aspect, in the fourth aspect The third possible implementation in, the sending module, if being also used to the judgment module judges that the amount of video is big In the upper limit of the buffer threshold, then release request is sent to core-network side network element, so that the core-network side network element reduces institute State the dispatching priority of the video buffered.
In conjunction with the third possible implementation of the 4th aspect, the 4th kind of possible realization side in the fourth aspect In formula, the sending module, if judging that the amount of video is greater than the upper of the buffer threshold specifically for the judgment module Limit then sends release request to the server of the offer current video, so that the server determines that the reduction scheduling is excellent Bandwidth that first grade needs to adjust simultaneously is sent to the core-network side network element so that the core-network side network element reduce it is described just In the dispatching priority of the video of buffering.
In conjunction with the third possible implementation of the 4th aspect, the 5th kind of possible realization side in the fourth aspect In formula, the client further include:
Processing module, the bandwidth for needing to adjust for the determining reduction dispatching priority simultaneously request to reflect to the release Power.
5th aspect, the embodiment of the present invention provide a kind of core-network side network element, comprising:
Receiving module, for receiving the video acceleration request of client transmission, the video acceleration request is the client It determines the amount of video cached in play buffer and judges that the amount of video is less than or equal to the lower limit of buffer threshold in end When send；
Processing module, for carrying out acceleration downloading to the video buffered in the play buffer.
In the first possible implementation of the 5th aspect, the receiving module is specifically used for receiving the visitor Family end is requested via the video acceleration that the server for providing the video buffered is sent, the server is determined Acceleration downloading needed for bandwidth and to the video acceleration request authentication；
The processing module, the acceleration provided specifically for the server received according to the receiving module are downloaded Required bandwidth and the authentication to video acceleration request, add the video buffered in the play buffer Speed downloading.
In the 5th kind of possible implementation of the 5th aspect, the processing module is specifically used for according to the visitor Family end provide acceleration downloading needed for bandwidth and to the video acceleration request authentication, in the play buffer just Acceleration downloading is carried out in the video of buffering.
In conjunction with the first or second of possible implementation of the 5th aspect, the 5th aspect, at the 5th aspect The third possible implementation in, the receiving module, be also used to receive the transmission of the client release request, it is described Release request is that the client determines the amount of video cached in the play buffer and judges that the amount of video is big It is sent when the upper limit of the buffer threshold；
The processing module is also used to reduce the dispatching priority of the video buffered.
In conjunction with the third possible implementation of the 5th aspect, in the 4th kind of possible realization side of the 5th aspect In formula, the receiving module is sent out specifically for receiving the client via the server for providing the video buffered Bandwidth that the reduction dispatching priority that the release request sent, the server are determined needs to adjust and to described Discharge the authentication of request；
The processing module, described in the reduction provided specifically for the server that is received according to the receiving module The bandwidth that dispatching priority needs to adjust and the authentication to the release request, reduce the scheduling of the video buffered Priority.
In conjunction with the third possible implementation of the 5th aspect, in the 5th kind of possible realization side of the 5th aspect In formula, the processing module, the band for needing to adjust specifically for the reduction dispatching priority provided according to the client Authentication wide and to the release request, reduces the dispatching priority of the video buffered.
6th aspect, the embodiment of the present invention provide a kind of wireless access net side network element, comprising:
Dispatch weight determining module, for according to the amount of video cached in play buffer, and/or, it is described play it is slow The radio link quality information for rushing the video buffered in area determines the tune of the video buffered in the play buffer Spend weight；
Judgment module, for judging it is default whether the dispatch weight that the dispatch weight determining module is determined is higher than Weight；
Air-interface scheduling module, if judging that the dispatch weight is higher than default weight for the judgment module, to institute State the video that is buffering in play buffer and carry out air-interface scheduling, with to the video buffered in the play buffer into Row accelerates downloading.
In the first possible implementation of the 6th aspect, the wireless access net side network element, further includes:
Amount of video determining module, for determining the amount of video cached in the play buffer；Alternatively,
Receiving module, for receiving the amount of video information of client transmission, the amount of video information carries described play and delays Rush the amount of video cached in area.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, at second of the 6th aspect In possible implementation, the air-interface scheduling module, if being also used to the judgment module judges that the dispatch weight is lower than Default weight, then carry out air-interface scheduling to the video buffered in the play buffer, with what is buffered described in reduction The dispatching priority of video.
7th aspect, the embodiment of the present invention provide a kind of client, comprising: processor and memory, the memory Storage executes instruction, and when client operation, communicates between the processor and the memory, the processor executes It is described to execute instruction so that the first of client executing first aspect as above, first aspect are to any in the 5th kind The possible implementation of kind.
8th aspect, the embodiment of the present invention provide a kind of core-network side network element, comprising: processor and memory, it is described Memory storage executes instruction, and when core-network side network element operation, communicates between the processor and the memory, institute State processor execute described in execute instruction so that the core-network side network element execute the second aspect as above, the second aspect the One kind is to any possible implementation in the 5th kind.
9th aspect, the embodiment of the present invention provide a kind of wireless access net side network element, comprising: processor and memory, The memory storage executes instruction, when wireless access net side network element operation, the processor and the memory it Between communicate, the processor execute described in execute instruction so that the wireless access net side network element execute third aspect as above, The first in terms of third or second of possible implementation.
Video acceleration method, client and network element provided in an embodiment of the present invention, client pass through perception play buffer In the amount of video that has cached send video when amount of video is less than or equal to the lower limit of buffer threshold to core-network side network element and add Speed request guarantees play buffering so that core-network side network element carries out acceleration downloading to the video buffered in play buffer Area stores enough video datas, realizes under mobile network environment, reduces client and the purpose of video cardton phenomenon occurs.
Detailed description of the invention
Fig. 1 is the flow chart of video acceleration method embodiment one of the present invention；
Fig. 2 is the flow chart of video acceleration method embodiment two of the present invention；
Fig. 3 is the flow chart of video acceleration method embodiment three of the present invention；
Fig. 4 is the signaling diagram of video acceleration method example IV of the present invention；
Fig. 5 is the signaling diagram of video acceleration method embodiment five of the present invention；
Fig. 6 is the flow chart of video acceleration method embodiment six of the present invention；
Fig. 7 A is the process schematic of video acceleration method embodiment seven of the present invention；
Fig. 7 B is the detailed process flow chart of RRM algorithm in Fig. 7 A；
Fig. 8 A is the process schematic of video acceleration method embodiment eight of the present invention；
Fig. 8 B is the signaling diagram of RRM algorithm in Fig. 8 A；
Fig. 9 is the structural schematic diagram of client embodiment one of the present invention；
Figure 10 is the structural schematic diagram of client embodiment two of the present invention；
Figure 11 is the structural schematic diagram of core-network side network element embodiment one of the present invention；
Figure 12 is the structural schematic diagram of wireless access net side network element embodiment one of the present invention；
Figure 13 is the structural schematic diagram of wireless access net side network element embodiment two of the present invention；
Figure 14 is the structural schematic diagram of client embodiment three of the present invention；
Figure 15 is the structural schematic diagram of core-network side network element embodiment two of the present invention；
Figure 16 is the structural representation of wireless access net side network element embodiment three of the present invention
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of video acceleration method embodiment one of the present invention, and the present embodiment is the angle from client to this Invention is described in detail, and is suitable under mobile network, the scene of unstable networks.Specifically, the present embodiment includes following step It is rapid:
101, client determines the amount of video cached in play buffer.
In the embodiment of the present invention, client is the terminal with video playback capability, such as the IOS operating system of current mainstream Or the terminal of Android (Android) operating system, at IOS or Android operation system, client supports HPD/HLS agreement Browser or player etc..
In this step, the client with video playback capability determines the video cached in current play buffer Amount determines remaining playable amount of video.For example, client determines the video slicing number of buffered video in play buffer Measure (a), the playable duration (second) of buffered video or playable data volume (byte) of buffered video etc..
102, client judges whether amount of video is less than or equal to the lower limit of buffer threshold.
Client is previously provided with buffer threshold as trigger condition, such as the lower limit (Threshold of setting buffer threshold MIN), the upper limit (Threshold MAX) of buffer threshold.During specific implementation, which can be fixed value, It can also be dynamically updated by server etc..
If 103, amount of video is less than or equal to the lower limit of buffer threshold, client sends video to core-network side network element and adds Speed request, so that core-network side network element carries out acceleration downloading to the video buffered in play buffer.
In this step, when judging the amount of video in play buffer lower than lower limit, illustrate to have delayed in play buffer The amount of video very little deposited, client sends video acceleration request to core-network side network element at this time, and triggering core-network side network element provides Higher bandwidth etc., to carry out acceleration downloading to the video buffered in play buffer.
Optionally, when judging that the amount of video in play buffer is higher than the upper limit, illustrate to have cached in play buffer Sufficient video, without having to worry about the video cardton phenomenon as caused by unstable networks.At this point, client can not do any place Reason can also send release request to core-network side network element, and triggering core net reduces the dispatching priority of the video buffered, The influence to server bandwidth is avoided by reducing the modes such as bandwidth.
Video acceleration method provided in an embodiment of the present invention, client is by perceiving the video cached in play buffer Amount sends video acceleration request to core-network side network element, so that core when amount of video is less than or equal to the lower limit of buffer threshold Net side network element carries out acceleration downloading to the video buffered in play buffer, guarantees that play buffer stores enough videos Data are realized under mobile network environment, reduce client and the purpose of video cardton phenomenon occur.
Fig. 2 is the flow chart of video acceleration method embodiment two of the present invention, and the present embodiment is from the angle of core-network side network element The present invention will be described in detail for degree, is suitable under mobile network, the scene of unstable networks.Specifically, the present embodiment includes Following steps:
201, core-network side network element receives the video acceleration request that client is sent, and video acceleration request is that client determines What the amount of video that has cached in play buffer out and judging was sent when amount of video is less than or equal to the lower limit of buffer threshold.
When client determines the amount of video cached in play buffer and judges that amount of video is less than or equal to caching When the lower limit of thresholding, video acceleration request is sent to core-network side network element, is sent correspondingly, core-network side network element receives client Video acceleration request.
Optionally, bandwidth needed for core-network side network element can be determined to accelerate downloading in client simultaneously requests video acceleration After authentication, by the message interface between client, the video acceleration that direct reception client end is sent is requested.For example, core Internet protocol (Internet Protocol, IP) message interface can be established between net side network element and client, pass through the IP number of plies The transmission of video acceleration request, bandwidth information etc. is carried out according to packet.
Optionally, core-network side network element can also indirectly receive video acceleration request, for example, if amount of video is less than or waits In the lower limit of buffer threshold, client sends video acceleration request to the server for providing the video buffered.Server exists After receiving video acceleration request, bandwidth needed for accelerating downloading is determined, authentication is carried out to acceleration request and to core-network side net Member is sent.Correspondingly, core-network side network element receives the acceleration request after authentication according to the server, according to needed for acceleration downloading The information such as bandwidth carry out acceleration downloading to the video buffered in play buffer.
202, core-network side network element carries out acceleration downloading to the video buffered in play buffer.
After core-network side network element receives the video acceleration request of client transmission, it is believed that cached in play buffer Amount of video very little, at this point, core-network side network element provides higher bandwidth etc., to the video buffered in play buffer Carry out acceleration downloading.
Video acceleration method provided in an embodiment of the present invention, core-network side network element receive the video acceleration that client is sent and ask It asks, video acceleration request is that client determines the amount of video cached in play buffer and judges that amount of video is less than or waits It is sent when the lower limit of buffer threshold, under core-network side network element accelerates the video buffered in play buffer It carries, guarantees that the play buffer of client stores enough video datas, realize under mobile network environment, reduce client and occur The purpose of video cardton phenomenon.
Fig. 3 is the flow chart of video acceleration method embodiment three of the present invention.Realization approach of the present embodiment from an entirety The present invention will be described in detail.Specifically, the present embodiment includes the following steps:
301, the amount of video cached in play buffer is determined.
The amount of video cached in the detection such as client, the wireless access net side network element currently playing buffer area of client, i.e., Data volume, playable duration of the playable video of residue etc..
302, judge whether the amount of video cached in play buffer is more than buffer threshold.
In this step, settable two thresholdings of buffer threshold are the lower limit of buffer threshold and the upper limit of buffer threshold respectively, In practicable embodiment, multiple threshold values also can be set, system that the present invention is not limited thereto.If play buffer In the amount of video that has cached be lower than the lower limit of buffer threshold, then follow the steps 303；Otherwise, if having cached in play buffer Amount of video is higher than the upper limit of buffer threshold, thens follow the steps 304；In addition, if the amount of video cached in play buffer between Between the upper limit and lower limit of buffer threshold, 305 are thened follow the steps.
303, the dispatching priority of buffered video in play buffer is improved.
When lower limit of the amount of video cached in play buffer lower than buffer threshold, illustrate in client terminal playing buffer area The amount of video very little cached will execute the operation for improving dispatching priority at this time, and promote buffered video in play buffer Speed of download.
304, the dispatching priority of buffered video in play buffer is reduced.
When the amount of video cached in play buffer is higher than the upper limit of buffer threshold, illustrate client terminal playing buffer area In cached sufficient video, the operation for reducing dispatching priority will be executed at this time, reduce in play buffer buffered video Speed of download.
305, maintain the dispatching priority of buffered video in play buffer constant.
When the amount of video cached in play buffer is between the upper limit and lower limit of buffer threshold, illustrate to have cached Amount of video reach one compared with the figure of merit, without to buffered video carries out accelerating downloading or to avoid to service in play buffer The influence of device bandwidth and reduce speed of download, i.e., the dispatching priority of buffered video is constant in maintenance play buffer.
The present embodiment is to carry out detailed description to the present invention from the thinking of an entirety, however, above-mentioned steps 301~ 305 specific executing subjects, depending on the framework and design of product, those steps can be individually by client, core-network side net Member, server or wireless access net side network element etc. realize, can also connect by client, server, core-network side network element or wirelessly Enter the mutual cooperation of net side network element to realize.In the following, by being carried out from the angle of the specific implementation process of step 301~305 to the present invention It elaborates.
Fig. 4 is the signaling diagram of video acceleration method example IV of the present invention.In the present embodiment, client perceives play buffering The amount of video cached in area, and video acceleration request or release request are sent to server, then by server calls core net Relevant application programming interfaces (the Application of service quality (Quality of Service, QoS) that side network element provides Program Interface, API), it finally completes to accelerate downloading by core-network side network element or reduces dispatching priority, i.e. client End, server and core-network side network element cooperate to realize video acceleration method provided in an embodiment of the present invention.Specifically, this Embodiment includes the following steps:
401, client determines the amount of video cached in play buffer.
Specifically, reference can be made to above-mentioned Fig. 1 step 101, details are not described herein again.
402, user end to server sends video acceleration request or release request.
In this step, if client judges that the amount of video cached in play buffer is lower than the lower limit of buffer threshold, Then video acceleration request is sent to the server for providing the video；Otherwise, if client is judged to have cached in play buffer Amount of video be more than buffer threshold the upper limit, then to provide the video server send release request.
403, server requests video acceleration or discharges request to authenticate.
It is requested for video acceleration, the dispatching priority of buffered video, calculating add in server raising play buffer The information such as bandwidth needed for speed downloading authenticate simultaneously record log to the acceleration request.In general, accelerate needed for downloading Bandwidth etc. is related to video content clarity being played on, and different buffer thresholds different videos can be arranged, and accelerates Bandwidth needed for downloading can be the multiple of video code rate, absolute video code rate etc..Specifically, reference can be made to table 1, table 1 are this hair The mapping table of bandwidth and buffer threshold in bright video acceleration method example IV.
Table 1
Levels of acceleration Nothing Generally It is good It is excellent
The buffer threshold upper limit 10S 60S 90S 120S
Buffer threshold lower limit 2S 2S 8S 10S
Bandwidth 1X 1.1X 1.2X 1.5X
Table 1 is please referred to, " X " in bandwidth represents the multiple of video code rate.By taking levels of acceleration " good " as an example, work as play buffering When the playing duration of Qu Zhongyi buffered video is lower than 8S, server calculates 1.2 times that the bandwidth needed for accelerating is video code rate, I.e. network side needs to provide the bandwidth for being equivalent to 1.2 times of video code rate for downloading acceleration use.
It should be noted that, in addition to the factor of video code rate, bandwidth etc., also being needed comprehensive during specific commercial operation Demand for experience, user's statistical data, the commercial operation strategy etc. for closing consideration business, do not enumerate herein.
It is requested for release, server reduces the dispatching priority of buffered video in play buffer, passes through and reduces band The modes such as width avoid the influence to server bandwidth.For example, table 1 is please referred to, when levels of acceleration is " general ", if play buffering The playing duration of Qu Zhongyi buffered video is more than 60S, herein, it is possible to reduce for the bandwidth of foradownloaded video, by foradownloaded video Bandwidth is maintained at 1.1 times of video code rate or less.
404, the relevant API of QoS that server calls core-network side network element provides.
Core-network side can provide the network element for accelerating downloading or reducing dispatching priority, such as Huawei to server in the form of API Network capabilities (Network Enabler) network element in network provides the relevant API of QoS to server, passes through the API, service Video acceleration request or release request, authentication information, bandwidth information etc. are sent to core-network side network element by device, so that core-network side The video buffered in play buffer is carried out accelerating downloading or reduces dispatching priority.
405, core-network side network element carries out the video buffered in play buffer to accelerate downloading or reduction scheduling excellent First grade.
Core-network side network element passes through modification charging regulation function entity (Policy And Charging Rules Function, PCRF) modes such as strategy carry out accelerating downloading to the video buffered in play buffer or to reduce scheduling excellent First grade.
It should be noted that client, server and core-network side network element, which cooperate, realizes the mistake of the embodiment of the present invention The approach of Cheng Zhong, information transmitting may also pass through other network elements such as gateway, evolution block core net (Evolved Packet CoreNetwork, EPC), evolved node (eNodeB, eNB) etc..
Fig. 5 is the signaling diagram of video acceleration method embodiment five of the present invention.In the present embodiment, client perceives play buffering The amount of video cached in area, and the relevant API of service quality QoS of core-network side network element offer is provided, finally by core Heart net side network element is completed to accelerate downloading or reduces dispatching priority.Compared to above-mentioned Fig. 4 embodiment, in the present embodiment, client It cooperates with core-network side network element to realize that video acceleration method provided in an embodiment of the present invention, main decision process are not related to Server.Specifically, the present embodiment includes the following steps:
501, client determines the amount of video cached in play buffer.
Specifically, reference can be made to above-mentioned Fig. 1 step 101, details are not described herein again.
502, client requests video acceleration or discharges request to authenticate.
In this step, if client judges that the amount of video cached in play buffer is lower than the lower limit of buffer threshold, The information such as bandwidth needed for accelerating downloading are then calculated, and video acceleration request is authenticated；Otherwise, if client is judged to broadcast The upper limit that the amount of video cached in buffer area is more than buffer threshold is put, then discharges request and is authenticated.
503, the relevant API of QoS that client call core-network side network element provides.
504, core-network side network element carries out the video buffered in play buffer to accelerate downloading or reduction scheduling excellent First grade.
505, user end to server sends the operation log for accelerating downloading or reducing dispatching priority.
Fig. 6 is the flow chart of video acceleration method embodiment six of the present invention.The present embodiment is wireless access net side network element The present invention will be described in detail for angle, is suitable under mobile network, the scene of unstable networks.Specifically, the present embodiment packet Include following steps:
601, wireless access net side network element is according to the amount of video cached in play buffer, and/or, in play buffer The radio link quality information of the video buffered determines the dispatch weight of the video buffered in play buffer.
ENB in wireless access net side network element, such as long term evolution (Long Term Evolution, LTE) network, Controller etc. in 3 g mobile communication (the3rd Generation Mobile Communication, 3G), according to broadcasting The amount of video cached in buffer area, and/or, the radio link quality information of the video buffered in play buffer executes Wireless resource management (Radio Resource Management, RRM) algorithm, determines the view buffered in play buffer The dispatch weight of frequency, the final air-interface scheduling realized to the video buffered in play buffer.
602, wireless access net side network element judges whether dispatch weight is higher than default weight；
In general, the better video of radio link quality, weight are higher；The amount of buffered video is got in play buffer Small video, weight are higher.In this step, video that wireless access net side network element is buffering in determining play buffer Dispatch weight after, judge whether the dispatch weight is higher than default weight.
If 603, dispatch weight is higher than default weight, and wireless access net side network element in play buffer to buffering Video carries out air-interface scheduling, to carry out acceleration downloading to the video buffered in play buffer.
In this step, when judging that dispatch weight is higher than default weight, illustrate the video cached in play buffer Very little is measured, client sends video acceleration request to core-network side network element at this time, and triggering core-network side network element provides higher band Width etc., to carry out acceleration downloading to the video buffered in play buffer.
Optionally, when judging that dispatch weight is lower than default weight, illustrate to have cached sufficient view in play buffer Frequently, without having to worry about the video cardton phenomenon as caused by unstable networks.At this point, client can be without any processing, it can also To send release request to core-network side network element, triggering core net reduces the dispatching priority of the video buffered, by subtracting The modes such as small bandwidth avoid the influence to server bandwidth.
Video acceleration method provided in an embodiment of the present invention, wireless access net side network element have been cached according in play buffer Amount of video, and/or, the radio link quality information of the video buffered in play buffer determines in play buffer The dispatch weight of the video buffered.When judging that dispatch weight is higher than default weight, sends and regard to core-network side network element Frequency acceleration request guarantees to play so that core-network side network element carries out acceleration downloading to the video buffered in play buffer Buffer area stores enough video datas, realizes under mobile network environment, reduces client and the purpose of video cardton phenomenon occurs.
Fig. 7 A is the process schematic of video acceleration method embodiment seven of the present invention.In the present embodiment, wireless access net side Network element is specially eNB, by Fig. 7 A it is found that wireless access net side network element determines that the amount of video cached in play buffer passes through ENB executes RRM algorithm, realizes video acceleration method described in the embodiment of the present invention.
Fig. 7 B is the detailed process flow chart of RRM algorithm in Fig. 7 A.Referring to Fig. 7 A and Fig. 7 B, the present embodiment includes Following steps:
701, eNB determines the amount of video cached in play buffer.
Specifically, wireless access net side network element is according to the video buffered in the play buffer via core network Content, the information such as average bit rate, the video resolution of transmission of video are extracted, in conjunction with the real-time Transmission rate and biography of video The defeated time estimates the video data volume and remaining video amount that client has played, so that it is determined that having delayed in play buffer The amount of video deposited.
It should be noted that due to will receive video playing etc. to the estimation of the amount of video cached in wireless access net side Time to be buffered, video playing code rate the factors such as fluctuation situation influence, the result estimated can have certain deviation.
702, eNB obtains the current radio link quality information of client.
It should be noted that above-mentioned steps 701 and step 702 have no strict sequence.
703, eNB determines the dispatch weight of the video buffered in play buffer.
ENB is determined according to current radio link quality information of the amount of video, client that have cached in play buffer etc. Dispatch weight.From the perspective of radio link quality, radio link quality is better, then weight is higher, to radio link quality The video of good client is scheduled, and is helped to improve scheduling rates, is promoted efficiency of transmission on the whole；From play buffer In for the angle of amount of video that has cached, the amount of video cached is smaller, then weight is higher, small to the amount of video for having cached view The video of client accelerate the scheduling of downloading, avoid the Caton present, and the client big to the amount of video cached Video is scheduled the scheduling of priority reduction, is not reducing the network that client occupancy is saved while video traffic experience Resource.
704, eNB executes air-interface scheduling.
After determining dispatch weight, eNB is eating dishes without rice or wine to execute corresponding scheduling strategy to reach video acceleration downloading or release The purpose put.
Optionally, if dispatch weight is higher than default weight, wireless access net side network element in play buffer to delaying The video of punching carries out air-interface scheduling, to carry out acceleration downloading to the video buffered in play buffer.
Optionally, if dispatch weight is lower than default weight, wireless access net side network element in play buffer to delaying The video of punching carries out air-interface scheduling, to reduce the dispatching priority of the video buffered.
Compared to above-mentioned Fig. 4 and Fig. 5 embodiment, wireless access net side network element is only needed to have video traffic in the present embodiment Recognition capability, improving to RRM algorithm can be realized the present invention.
Fig. 8 A is the process schematic of video acceleration method embodiment eight of the present invention.Compared to Fig. 7 A illustrated embodiment, originally In embodiment, the amount of video cached in play buffer is determined by client and sends eNB.
Fig. 8 B is the signaling diagram of RRM algorithm in Fig. 8 A.Referring to Fig. 8 A and Fig. 8 B, the present embodiment includes following step It is rapid:
801, client determines the amount of video cached in play buffer.
Specifically, can refer to Fig. 1 step 101, details are not described herein again.
802, client sends amount of video information to eNB.
Client sends amount of video information to eNB by the interface between eNB, which carries play buffering The amount of video cached in area.
803, eNB obtains the current radio link quality information of client.
804, eNB determines the dispatch weight of the video buffered in play buffer.
805, eNB executes air-interface scheduling.
Fig. 9 is the structural schematic diagram of client embodiment one of the present invention.Client provided in this embodiment is and the present invention The corresponding Installation practice of Fig. 1 embodiment, details are not described herein for specific implementation process.Specifically, client provided in this embodiment End 100 specifically includes:
Determining module 11, for determining the amount of video cached in play buffer；
Judgment module 12, for judging whether the amount of video that determining module 11 is determined is less than or equal under buffer threshold Limit；
Sending module 13, if judging that amount of video is less than or equal to the lower limit of buffer threshold, visitor for judgment module 12 Family end sends video acceleration request to core-network side network element, so that core-network side network element is to the view buffered in play buffer Frequency carries out acceleration downloading.
Client provided in an embodiment of the present invention works as amount of video by the amount of video cached in perception play buffer Less than or equal to buffer threshold lower limit when, to core-network side network element send video acceleration request so that core-network side network element pair The video buffered in play buffer carries out acceleration downloading, guarantees that play buffer stores enough video datas, realizes Under mobile network environment, reduces client and the purpose of video cardton phenomenon occur.
Optionally, sending module 13, if judging that amount of video is less than or equal to buffer threshold specifically for judgment module 12 Lower limit, then video acceleration request is sent to providing the server of video buffered, so that server is determined under acceleration It carries required bandwidth and is sent to core-network side network element, so that core-network side network element accelerates the video buffered Downloading.
Figure 10 is the structural schematic diagram of client embodiment two of the present invention.As shown in Figure 10, the client 100 of the present embodiment On the basis of Fig. 9 apparatus structure, further, further includes:
Processing module 14, for determining the bandwidth for accelerating downloading required and requesting to authenticate to video acceleration.
Optionally, sending module 13, if being also used to judgment module 12 judges that amount of video is greater than the upper limit of buffer threshold, Release request is sent to core-network side network element, so that core-network side network element reduces the dispatching priority of the video buffered.
Optionally, sending module 13, if judging that amount of video is greater than the upper limit of buffer threshold specifically for judgment module 12, Release request then is sent to the server for providing current video, so that server, which determines, reduces the band that dispatching priority needs to adjust Width is simultaneously sent to core-network side network element, so that core-network side network element reduces the dispatching priority of the video buffered.
Optionally, processing module 14, the bandwidth for needing to adjust for determining reduction dispatching priority simultaneously reflect to release request Power.
Figure 11 is the structural schematic diagram of core-network side network element embodiment one of the present invention.Core-network side net provided in this embodiment Member is Installation practice corresponding with Fig. 2 embodiment of the present invention, and details are not described herein for specific implementation process.Specifically, this implementation The core-network side network element 200 that example provides specifically includes:
Receiving module 21, for receiving the video acceleration request of client transmission, video acceleration request is that client determines What the amount of video that has cached in play buffer out and judging was sent when amount of video is less than or equal to the lower limit of buffer threshold；
Processing module 22, for carrying out acceleration downloading to the video buffered in play buffer.
Core-network side network element provided in an embodiment of the present invention receives the video acceleration request that client is sent, video acceleration Request is that client determines the amount of video cached in play buffer and judges that amount of video is less than or equal to buffer threshold Lower limit when send, core-network side network element carries out acceleration downloading to the video buffered in play buffer, guarantees client The play buffer at end stores enough video datas, realizes under mobile network environment, and it is existing that video cardton occurs in reduction client The purpose of elephant.
Optionally, receiving module 21 are sent out specifically for receiving client via the server for providing the video buffered Video acceleration request, the bandwidth for accelerating downloading required that server is determined and the authentication to video acceleration request sent；Place Module 22 is managed, downloads required bandwidth and to view specifically for the acceleration that the server received according to receiving module 21 provides The authentication of frequency acceleration request carries out acceleration downloading to the video buffered in play buffer.
Optionally, processing module 22, specifically for the required bandwidth of acceleration downloading provided according to client and to view The authentication of frequency acceleration request carries out acceleration downloading to the video buffered in play buffer.
Optionally, receiving module 21, are also used to receive the release request of the transmission of client, and release request is that client determines What the amount of video that has cached in play buffer out and judging was sent when amount of video is greater than the upper limit of buffer threshold；Processing module 22, it is also used to reduce the dispatching priority of the video buffered.
Optionally, receiving module 21 are sent out specifically for receiving client via the server for providing the video buffered The bandwidth that the reduction dispatching priority that the release sent is requested, server is determined needs to adjust and the authentication to release request； Processing module 22 needs to adjust specifically for the reduction dispatching priority that the server received according to receiving module 21 provides Bandwidth and the authentication requested release, reduce the dispatching priority of the video buffered.
Optionally, processing module 22, the band for needing to adjust specifically for the reduction dispatching priority provided according to client Authentication wide and to release request, reduces the dispatching priority of the video buffered.
Figure 12 is the structural schematic diagram of wireless access net side network element embodiment one of the present invention.It is provided in this embodiment wirelessly to connect Entering net side network element is Installation practice corresponding with Fig. 6 embodiment of the present invention, and details are not described herein for specific implementation process.Specifically , wireless access net side network element 300 provided in this embodiment specifically includes:
Dispatch weight determining module 31, for according to the amount of video cached in play buffer, and/or, play buffering The radio link quality information of the video buffered in area determines the scheduling power of the video buffered in play buffer Weight；
Judgment module 32, for judging whether the dispatch weight that dispatch weight determining module 31 is determined is higher than default power Weight；
Air-interface scheduling module 33, it is slow to playing if judging that dispatch weight is higher than default weight for judgment module 32 It rushes the video buffered in area and carries out air-interface scheduling, to carry out acceleration downloading to the video buffered in play buffer.
Wireless access net side network element provided in an embodiment of the present invention, according to the amount of video cached in play buffer, and/ Or, the radio link quality information of the video buffered in play buffer, determines the view buffered in play buffer The dispatch weight of frequency.When judging that dispatch weight is higher than default weight, video acceleration request is sent to core-network side network element, is made It obtains core-network side network element and acceleration downloading is carried out to the video buffered in play buffer, guarantee that play buffer storage is enough Video data, realize mobile network environment under, reduce client there is the purpose of video cardton phenomenon.
Figure 13 is the structural schematic diagram of wireless access net side network element embodiment two of the present invention.As shown in figure 13, the present embodiment Wireless access net side network element 300 on the basis of Figure 12 apparatus structure, further, further includes:
Amount of video determining module 34, for determining the amount of video cached in play buffer；Alternatively,
Receiving module 35, for receiving the amount of video information of client transmission, amount of video information is carried in play buffer The amount of video cached.
Optionally, air-interface scheduling module 33, if being also used to judgment module 32 judges that dispatch weight is lower than default weight, Air-interface scheduling is carried out to the video buffered in play buffer, to reduce the dispatching priority of the video buffered.
Figure 14 is the structural schematic diagram of client embodiment three of the present invention.As shown in figure 14, client provided in this embodiment End 400, comprising: processor 41 and memory 42.Client 400 can also include transmitter 43, receiver 44.43 He of transmitter Receiver 44 can be connected with processor 41.Wherein, transmitter 43 is for sending data or information, and receiver 44 is for receiving number According to or information, memory 42 storage execute instruction, when client 400 run when, communicated between processor 41 and memory 42, locate Reason device 41 calls executing instruction in memory 42, for executing embodiment of the method shown in Fig. 1, implementing principle and technical effect Similar, details are not described herein again.
Figure 15 is the structural schematic diagram of core-network side network element embodiment two of the present invention.As shown in figure 15, the present embodiment provides Core-network side network element 500, comprising: processor 51 and memory 52.Core-network side network element 500 can also include transmitter 53, Receiver 54.Transmitter 53 can be connected with receiver 54 with processor 51.Wherein, transmitter 53 is for sending data or letter Breath, receiver 54 is for receiving data or information, the storage of memory 52 execute instruction, when core-network side network element 500 is run, place It is communicated between reason device 51 and memory 52, processor 51 calls executing instruction in memory 52, for executing method shown in Fig. 2 Embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 16 is the structural schematic diagram of wireless access net side network element embodiment three of the present invention.As shown in figure 16, the present embodiment The wireless access net side network element 600 of offer, comprising: processor 61 and memory 62.Wireless access net side network element 600 can also wrap Include transmitter 63, receiver 64.Transmitter 63 can be connected with receiver 64 with processor 61.Wherein, transmitter 63 is for sending out Send data or information, for receiving data or information, the storage of memory 62 executes instruction receiver 64, when wireless access net side net It when member 600 is run, is communicated between processor 61 and memory 62, processor 61 calls executing instruction in memory 62, is used for Embodiment of the method shown in Fig. 6 is executed, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light The various media that can store program code such as disk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (22)

1. a kind of video acceleration method characterized by comprising
Client determines the amount of video cached in play buffer；
The client judges whether the amount of video is less than or equal to the lower limit of buffer threshold；
If the amount of video is less than or equal to the lower limit of the buffer threshold, the client sends to core-network side network element and regards Frequency acceleration request, so that the core-network side network element carries out acceleration downloading to the video buffered in the play buffer；
Wherein, if the amount of video is less than or equal to the lower limit of the buffer threshold, the client is to core-network side Network element sends video acceleration request, so that the core-network side network element carries out the video buffered in the play buffer Accelerate downloading, comprising:
If the amount of video is less than or equal to the lower limit of the buffer threshold, the client is to providing described buffering The server of video sends the video acceleration request, so that the server determines bandwidth needed for accelerating downloading and to institute The transmission of core-network side network element is stated, so that the core-network side network element carries out acceleration downloading to the video buffered.
2. the method according to claim 1, wherein the client judges whether the amount of video is less than or waits After the lower limit of buffer threshold, if the amount of video is less than or equal to the lower limit of the buffer threshold, the client It holds to core-network side network element and sends video acceleration request, so that the core-network side network element in the play buffer to delaying The video of punching carries out before acceleration downloading, further includes:
The client determines the bandwidth for accelerating downloading required and requests to authenticate to the video acceleration.
3. method according to claim 1 or 2, which is characterized in that further include:
If the amount of video is greater than the upper limit of the buffer threshold, the client sends release to core-network side network element and asks It asks, so that the core-network side network element reduces the dispatching priority of the video buffered.
4. if according to the method described in claim 3, it is characterized in that, the amount of video is greater than the upper of the buffer threshold Limit, then the client sends release request to core-network side network element, so that the core-network side network element reduces described delaying The dispatching priority of the video of punching, comprising:
If the amount of video is greater than the upper limit of the buffer threshold, the client is sent to the server for providing current video Release request, so that the server, which determines, reduces bandwidth that the dispatching priority needs to adjust and to the core-network side net Member is sent, so that the core-network side network element reduces the dispatching priority of the video buffered.
5. if according to the method described in claim 3, it is characterized in that, the amount of video is greater than the upper of the buffer threshold Limit, then the client sends release request to core-network side network element, so that the core-network side network element reduces described delaying Before the dispatching priority of the video of punching, further includes:
The client determines the bandwidth that the reduction dispatching priority needs to adjust and requests to authenticate to the release.
6. a kind of video acceleration method characterized by comprising
Core-network side network element receives the video acceleration request that client is sent, and the video acceleration request is that the client determines The amount of video that has cached in play buffer out simultaneously judges transmission when the amount of video is less than or equal to the lower limit of buffer threshold 's；
The core-network side network element carries out acceleration downloading to the video buffered in the play buffer；
Wherein, the core-network side network element receives the video acceleration request that client is sent, comprising:
The core-network side network element receives the institute that the client is sent via the server for providing the video buffered State video acceleration request, bandwidth and the mirror requested the video acceleration needed for the acceleration downloading that the server is determined Power；
The core-network side network element carries out acceleration downloading to the video buffered in the play buffer, comprising:
The core-network side network element accelerates to download required bandwidth and to the video acceleration according to what the server provided The authentication of request carries out acceleration downloading to the video buffered in the play buffer.
7. according to the method described in claim 6, it is characterized in that, the core-network side network element in the play buffer just Acceleration downloading is carried out in the video of buffering, comprising:
The core-network side network element accelerates to download required bandwidth and to the video acceleration according to what the client provided The authentication of request carries out acceleration downloading to the video buffered in the play buffer.
8. method according to claim 6 or 7, which is characterized in that further include:
The core-network side network element receives the release request of the transmission of the client, and the release request is that the client is true When making the amount of video cached in the play buffer and judging that the amount of video is greater than the upper limit of the buffer threshold It sends；
The core-network side network element reduces the dispatching priority of the video buffered.
9. according to the method described in claim 8, it is characterized in that, the core-network side network element receives the transmission of the client Release request, comprising:
The core-network side network element receives the institute that the client is sent via the server for providing the video buffered State release request, the reduction dispatching priority that the server is determined needs the bandwidth adjusted and asks to the release The authentication asked；
The core-network side network element reduces the dispatching priority of the video buffered, comprising:
Bandwidth that the reduction dispatching priority that the core-network side network element is provided according to the server needs to adjust and To the authentication of the release request, the dispatching priority of the video buffered is reduced.
10. according to the method described in claim 8, it is characterized in that, the core-network side network element receives the transmission of the client Release request, comprising:
Bandwidth that the reduction dispatching priority that the core-network side network element is provided according to the client needs to adjust and To the authentication of the release request, the dispatching priority of the video buffered is reduced.
11. a kind of client characterized by comprising
Determining module, for determining the amount of video cached in play buffer；
Whether judgment module, the amount of video for judging that the determining module is determined are less than or equal under buffer threshold Limit；
Sending module, if judging that the amount of video is less than or equal to the lower limit of the buffer threshold for the judgment module, Then the client sends video acceleration request to core-network side network element, so that the core-network side network element is to the play buffering The video buffered in area carries out acceleration downloading；
Wherein, the sending module, if it is described slow to judge that the amount of video is less than or equal to specifically for the judgment module The lower limit of thresholding is deposited, then the video acceleration request is sent to the server for providing the video buffered, so that described Server is determined bandwidth needed for accelerating downloading and is sent to the core-network side network element, so that the core-network side net Member carries out acceleration downloading to the video buffered.
12. client according to claim 11, which is characterized in that the client further include:
Processing module, for determining the bandwidth for accelerating downloading required and requesting to authenticate to the video acceleration.
13. client according to claim 11 or 12, which is characterized in that
The sending module, if being also used to the judgment module judges that the amount of video is greater than the upper limit of the buffer threshold, Release request then is sent to core-network side network element, so that the core-network side network element reduces the scheduling of the video buffered Priority.
14. client according to claim 13, which is characterized in that
The sending module, if judging that the amount of video is greater than the upper of the buffer threshold specifically for the judgment module Limit then sends release request to the server for providing current video, so that the server, which determines, reduces the dispatching priority The bandwidth that needs to adjust simultaneously is sent to the core-network side network element, so that the core-network side network element reduces described delaying The dispatching priority of the video of punching.
15. client according to claim 13, which is characterized in that the client further include:
Processing module, the bandwidth for needing to adjust for the determining reduction dispatching priority simultaneously request to authenticate to the release.
16. a kind of core-network side network element characterized by comprising
Receiving module, for receiving the video acceleration request of client transmission, the video acceleration request is that the client is true It makes the amount of video cached in play buffer and judges hair when the amount of video is less than or equal to the lower limit of buffer threshold It send；
Processing module, for carrying out acceleration downloading to the video buffered in the play buffer；
Wherein, the receiving module, specifically for receiving the client via the service of the offer video buffered The required bandwidth of acceleration downloading and the video is added that the video acceleration that device is sent is requested, the server is determined The authentication of speed request；
The processing module, needed for the acceleration downloading provided specifically for the server received according to the receiving module Bandwidth and to the video acceleration request authentication, under accelerating to the video buffered in the play buffer It carries.
17. core-network side network element according to claim 16, which is characterized in that
The processing module, specifically for the required bandwidth of acceleration downloading provided according to the client and to the video The authentication of acceleration request carries out acceleration downloading to the video buffered in the play buffer.
18. core-network side network element according to claim 16, which is characterized in that
The receiving module is also used to receive the release request of the transmission of the client, and the release request is the client It determines the amount of video cached in the play buffer and judges that the amount of video is greater than the upper of the buffer threshold in end It sends in limited time；
The processing module is also used to reduce the dispatching priority of the video buffered.
19. core-network side network element according to claim 18, which is characterized in that
The receiving module is sent specifically for receiving the client via the server for providing the video buffered Release request, the reduction dispatching priority determined of the server needs the bandwidth adjusted and releases described Put the authentication of request；
The processing module, the reduction scheduling provided specifically for the server received according to the receiving module The bandwidth that priority needs to adjust and the authentication to the release request, reduce the dispatching priority of the video buffered Grade.
20. core-network side network element according to claim 18, which is characterized in that
The processing module, the bandwidth for needing to adjust specifically for the reduction dispatching priority provided according to the client And the authentication to the release request, reduce the dispatching priority of the video buffered.
21. a kind of client characterized by comprising processor and memory, the memory storage execute instruction, and work as institute When stating client operation, communicated between the processor and the memory, the processor execute described in execute instruction so that The client executing method as claimed in any one of claims 1 to 5.
22. a kind of core-network side network element characterized by comprising processor and memory, the memory storage, which executes, to be referred to It enables, when core-network side network element operation, is communicated between the processor and the memory, described in the processor execution It executes instruction so that the core-network side network element executes such as the described in any item methods of claim 6~10.
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