CN106559715B - Mobile network video transmission optimization method and device - Google Patents
Mobile network video transmission optimization method and device Download PDFInfo
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- CN106559715B CN106559715B CN201611038767.9A CN201611038767A CN106559715B CN 106559715 B CN106559715 B CN 106559715B CN 201611038767 A CN201611038767 A CN 201611038767A CN 106559715 B CN106559715 B CN 106559715B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000005457 optimization Methods 0.000 title claims abstract description 19
- 239000012634 fragment Substances 0.000 claims abstract description 57
- 230000003139 buffering effect Effects 0.000 claims description 16
- 230000001629 suppression Effects 0.000 claims description 14
- 238000003860 storage Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/23805—Controlling the feeding rate to the network, e.g. by controlling the video pump
-
- 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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP 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
- H04N21/643—Communication protocols
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the present invention provides a kind of mobile network video transmission optimization method and device.This method comprises: obtaining the quality of the mobile network of mobile terminal connection；Obtain the corresponding transmission of video agreement of the Video service；According to the mobile network quality and the transmission of video agreement, transmission control protocol TCP window size and/or fragment downloading starting when adjusting the mobile terminal foradownloaded video data wait timing；Timing is waited according to the TCP window size and/or fragment downloading starting, downloads the video data.The embodiment of the present invention downloads TCP window size according to the adjustment video data of network quality and the transmission of video protocol self-adapting of use or fragment downloading starting waits timing, video data transmission rate is adjusted according to network quality in real time to realize, video data transmission efficiency is improved, network resource utilization is improved.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to a kind of mobile network video transmission optimization methods and dress
It sets.
Background technique
With the development of network technology, mobile data services have also obtained quick development, currently, internet manufacturer utilizes
Telecommunication carrier networks provide Video service to user terminal, in addition, video traffic is increasingly becoming the master of mobile Internet business
Stream, order video business is even to a certain degree instead of the TV for occupying public leisure active agent, and user is to mobile video industry
The requirement of business quality is also continuously increased.
Since the equipment such as user terminal such as mobile phone, tablet computer are moveable, user terminal is used in moving process
The mobile network quality that family terminal is connected may fluctuate, i.e., mobile network quality is good or bad, it is possible that such as
Lower situation: videoconference client asks for the data of a large amount of video when network quality is poor, the video consumer when network quality is preferable
Data are not asked at end but, therefore, cause video data cannot the preferentially downloading when network quality is preferable, data for a user
Buffer memory rate is slower, and network resource utilization is lower for mobile network.
Summary of the invention
The embodiment of the present invention provides a kind of mobile network video transmission optimization method and device, to improve video data transmission
Efficiency improves network resource utilization.
The one aspect of the embodiment of the present invention is to provide a kind of mobile network video transmission optimization method, comprising:
The quality of the mobile network of mobile terminal connection is obtained, the mobile network provides video clothes for the mobile terminal
Business；
Obtain the corresponding transmission of video agreement of the Video service；
According to the mobile network quality and the transmission of video agreement, when adjusting the mobile terminal foradownloaded video data
Transmission control protocol TCP window size and/or fragment downloading starting wait timing；
Timing is waited according to the TCP window size and/or fragment downloading starting, downloads the video data.
The other side of the embodiment of the present invention is to provide a kind of mobile network video transmission optimization device, comprising:
Module is obtained, the quality of the mobile network for obtaining mobile terminal connection, the mobile network is the movement
Terminal provides Video service；Obtain the corresponding transmission of video agreement of the Video service；
Module is adjusted, for adjusting the mobile terminal according to the mobile network quality and the transmission of video agreement
Transmission control protocol TCP window size and/or fragment downloading starting when foradownloaded video data wait timing；
Download module downloads institute for waiting timing according to the TCP window size and/or fragment downloading starting
State video data.
Mobile network video transmission optimization method and device provided in an embodiment of the present invention, according to network quality and use
The adjustment video data downloading TCP window size of transmission of video protocol self-adapting or fragment downloading starting wait timing, thus real
Now video data transmission rate is adjusted according to network quality in real time, improves video data transmission efficiency, improve Internet resources
Utilization rate.
Detailed description of the invention
Fig. 1 is mobile network video transmission optimization method flow chart provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides mobile network video transmission optimization method flow chart；
Fig. 3 is the structure chart that mobile network video transmission provided in an embodiment of the present invention optimizes device.
Specific embodiment
In the prior art, the basic process of mobile network order video business includes the following steps:
1) user terminal access to mobile network and establish wireless heterogeneous networks (Radio Resource Control, referred to as
RRC it) connects；
2) user terminal opens the video playing page and initiates domain name system (Domain Name System, abbreviation DNS)
Inquiry；
3) user terminal video playing client initiates transmission control protocol after obtaining video source address information
The Signalling exchanges such as (Transmission Control Protocol, abbreviation TCP) connection；
4) user terminal video playing client obtains initial buffered video data and plays demand according to user and plays just
Beginning video clip；
5) user terminal video playing client is segmented downloading broadcasting stage video data according to the memory headroom of distribution.
For step 4 and step 5, when video uses different transport protocols, specific video cache and downloading process are again
Difference.The transmission of video agreement of current main-stream includes HPD agreement, HLS protocol and DASH agreement.
HPD agreement starts to play after initially caching 8-10 second data in step 4, later in steps of 5 elder generation with full gear
Rate foradownloaded video data, that is, full rate download phase reduce TCP window size when buffer area is full to inhibit downloading rate to press down
Rate download phase processed.
HLS protocol starts to play after initially caching 5-10 second data in step 4, later in steps of 5 elder generation with full gear
Rate downloads a small fragment, fragment size about 2-30 second data amount, and pause downloading later is downloaded next small again after a period of time
Not downloading slicing when fragment data, buffer area are full.
DASH agreement is similar with HLS protocol, starts to play after initial 2-8 seconds data of caching, later after a period of time under
Carry a small fragment, each small fragment about 2-10 second data amount.
Fig. 1 is mobile network video transmission optimization method flow chart provided in an embodiment of the present invention.Needle of the embodiment of the present invention
To in the prior art, video data cannot be downloaded preferentially when network quality is preferable, and data buffer storage rate is slower for a user,
Network resource utilization is lower for mobile network, provides mobile network video transmission optimization method, and this method specifically walks
It is rapid as follows:
Step S101, the quality of the mobile network of mobile terminal connection is obtained, the mobile network is the mobile terminal
Video service is provided.
The executing subject of the present embodiment can be user terminal, a client being also possible on user terminal, this reality
Example is applied by taking a client on user terminal as an example, introduces mobile network video transmission optimization method described in the present embodiment
Principle.
Client on the user terminal detects whether the user terminal is in the video playing stage, if at the user terminal
In the video playing stage, then the client on user terminal obtains the matter of mobile terminal, that is, user terminal connection mobile network
Amount, the mobile network provide Video service for the mobile terminal, and in the present embodiment, the quality of the mobile network can be used
The signal-to-noise ratio of the mobile network indicates, can also be indicated with the signal strength of the mobile network.Optionally, the present embodiment
The quality of the mobile network is characterized with the signal-to-noise ratio of the mobile network.
Step S102, the corresponding transmission of video agreement of the Video service is obtained.
In addition, the client on user terminal further obtains the corresponding transmission of video agreement of the Video service, this reality
It applies in example, the corresponding transmission of video agreement of the Video service can be one of HPD agreement, HLS protocol and DASH agreement,
The present embodiment by respectively to the corresponding transmission of video agreement of the Video service be HPD agreement, HLS protocol and DASH agreement this three
Transmission control protocol TCP window size and/or fragment when one of kind of agreement, when the mobile terminal foradownloaded video data
Downloading starting waits the method for adjustment of timing to be introduced.
Step S103, according to the mobile network quality and the transmission of video agreement, the mobile terminal downloading is adjusted
Transmission control protocol TCP window size and/or fragment downloading starting when video data wait timing.
When using HPD agreement due to transmission of video, the downloading process of video includes: full rate download phase and suppression speed
Download phase, the present embodiment is respectively in full rate download phase and suppression speed download phase, according to the mobile network quality
With the transmission of video agreement, transmission control protocol TCP window size when adjusting the mobile terminal foradownloaded video data and/
Or fragment downloading starting waits timing.
Due to transmission of video use HLS protocol or DASH agreement when, the downloading process of video include: pause download phase and
Fragment download phase, the present embodiment is in pause download phase according to the video data volume tune current in mobile network quality and caching
Whole fragment downloading starting waits timing, in fragment download phase according to the video data volume current in mobile network quality and caching
It adjusts TCP and downloads window size.
Step S104, timing is waited according to the TCP window size and/or fragment downloading starting, downloads the view
Frequency evidence.
The embodiment of the present invention is downloaded according to the adjustment video data of network quality and the transmission of video protocol self-adapting of use
TCP window size or fragment downloading starting wait timing, adjust video data transmission speed in real time according to network quality to realize
Rate improves video data transmission efficiency, improves network resource utilization.
Fig. 2 be another embodiment of the present invention provides mobile network video transmission optimization method flow chart.It is real described in Fig. 1
On the basis of applying example, as shown in Fig. 2, the method for the present embodiment includes the following steps:
Step S201, the quality of the mobile network of mobile terminal connection is obtained, the mobile network is the mobile terminal
Video service is provided；
Step S202, the corresponding transmission of video agreement of the Video service is obtained；If the transmission of video agreement is HPD association
View, thens follow the steps S203- step S206, if the transmission of video agreement is HLS protocol or DASH agreement, thens follow the steps
S207- step S212；
Step S203, in the full rate download phase of the video data, if the mobile network quality is greater than network matter
Thresholding is measured, then the TCP window size remains unchanged；
For example, the transmission of video agreement is HPD agreement, in the full rate download phase of the video data, the shifting
The current signal-to-noise ratio (Signal to Interference plus Noise Ratio, abbreviation SINR) of dynamic network is higher than 20dB,
Then it is constant to download the former protocol integrated test system mode of window maintenance by TCP.
Step S204, in the full rate download phase of the video data, if the mobile network quality is less than network matter
It measures thresholding and reduces the TCP window then according to the video data volume current in the mobile network current signal-to-noise ratio and caching
Size；
For example, the transmission of video agreement is HPD agreement, in the full rate download phase of the video data, the shifting
The current signal-to-noise ratio (Signal to Interference plus Noise Ratio, abbreviation SINR) of dynamic network is lower than 20dB,
The TCP window size can contract in proportion according to the video data volume current in the mobile network current signal-to-noise ratio and caching
Subtract, specifically, the TCP window size=x* original TCP window size can be enabled；
X=a* network quality reduction ratio+b* caches remaining reduction ratio；
Wherein, 0<x≤1, a>=0, b>=0.
When SINR value 5 between 20dB when, the network quality reduction ratio is equal to the current letter of the mobile network
It makes an uproar than the ratio with the network quality thresholding；When SINR value is lower than 5dB, the network quality reduction ratio is equal to 0.25.
Current the video data volume/caching size in caching described in the caching residue reduction ratio=1-.
Step S205, in the suppression speed download phase of the video data, if the mobile network quality is greater than network
It is big to increase the TCP window then according to the current signal-to-noise ratio of the mobile network and the network quality thresholding for quality threshold
It is small；
For example, the transmission of video agreement is HPD agreement, it is described in the suppression speed download phase of the video data
The current signal-to-noise ratio of mobile network (Signal to Interference plus Noise Ratio, abbreviation SINR) is higher than
20dB, and buffer area is discontented, as long as caching is not spilt over according to a certain percentage after the video data caching that then user terminal is asked for
Increase TCP window, for example, the TCP window size=y* original TCP window size can be enabled, mobile network described in y=1+ is current
Signal-to-noise ratio/network quality thresholding, if buffer area does not overflow, then enables after according to the TCP window size foradownloaded video data
TCP window size is equal to the value, otherwise enables TCP window size be equal to the total size that the remaining space size cached caches and subtracts
Current the video data volume in the caching.
Step S206, in the suppression speed download phase of the video data, if the mobile network quality is less than network
Quality threshold reduces the TCP window then according to the video data volume current in the mobile network current signal-to-noise ratio and caching
Mouth size；
For example, the transmission of video agreement is HPD agreement, it is described in the suppression speed download phase of the video data
The current signal-to-noise ratio of mobile network (Signal to Interference plus Noise Ratio, abbreviation SINR) is lower than
20dB, the TCP window size can be pressed according to the video data volume current in the mobile network current signal-to-noise ratio and caching
The specific method of scaled down, reduction is consistent with method described in step S204, and details are not described herein again.
Step S207, in the pause download phase of the video data, if the mobile network quality is greater than first network
Quality threshold, and cache less than, it is determined that it is 0 that the fragment downloading starting, which waits timing,；
In the present embodiment, the first network quality threshold is greater than the second network quality thresholding, for example, described the
One network quality thresholding is 25dB, and the second network quality thresholding is 10dB.If the mobile network quality is greater than the first net
Network quality threshold indicates that the mobile network quality is preferable；If the mobile network quality is less than the second network quality thresholding, table
Show that the mobile network quality is poor.
There is the probability of Caton for characterizing video playing in the buffering alarming threshold, and buffering alarming threshold is represented to be lower than and is somebody's turn to do
Caton will occur in video playing when buffer value or by Caton when occurring long, which connects Caton with video playing code rate and user
It is related by degree, when video code rate is higher, user is lower to Caton acceptance level, buffering alarming threshold also need setting compared with
Greatly.
For example, the transmission of video agreement is HLS protocol or DASH agreement, rank is downloaded in the pause of the video data
Section, when the mobile network quality is greater than first network quality threshold 25dB, and caching is less than, then the fragment downloading is enabled to open
Dynamic waiting timing is 0, and log-on data is downloaded immediately, and avoids buffer overflow by controlling TCP window size.
Step S208, in the pause download phase of the video data, if the mobile network quality is less than the second network
Quality threshold, and the video data volume current in the caching is not less than buffering alarming threshold, it is determined that the fragment downloading is opened
Dynamic waiting timing is not 0；
For example, the transmission of video agreement is HLS protocol or DASH agreement, rank is downloaded in the pause of the video data
Section, when the mobile network quality is less than the second network quality thresholding 10dB, and the video data volume current in the caching is not
Lower than buffering alarming threshold, it is determined that it is not 0 that the fragment downloading starting, which waits timing, specifically, if fragment downloading starting etc.
Extend fragment downloading starting timing to timing for 0, is downloaded if fragment constant if starting waiting timing is not 0.
Step S209, in the pause download phase of the video data, if the mobile network quality is less than the second network
Quality threshold, and the video data volume current in the caching is lower than buffering alarming threshold, it is determined that the fragment downloading starting
Waiting timing is 0；
For example, the transmission of video agreement is HLS protocol or DASH agreement, rank is downloaded in the pause of the video data
Section, when the mobile network quality is less than the second network quality thresholding 10dB, and the video data volume current in the caching is low
In buffering alarming threshold, then enabling the fragment downloading starting wait timing is 0, and log-on data is downloaded immediately.
Step S210, in the pause download phase of the video data, if the mobile network quality is in first network matter
It measures between thresholding and the second network quality thresholding, then the fragment downloading starting is enabled to wait timing constant.
Step S211, in the fragment download phase of the video data, if the mobile network quality is greater than network quality
Thresholding, then TCP window size maintains former protocol integrated test system mode constant；
For example, the transmission of video agreement is HLS protocol or DASH agreement, rank is downloaded in the fragment of the video data
Section, the current signal-to-noise ratio of the mobile network (Signal to Interference plus Noise Ratio, abbreviation SINR)
Higher than 20dB, then TCP window size maintains former protocol integrated test system mode constant.
Step S212, in the fragment download phase of the video data, if the mobile network quality is less than network quality
It is big to reduce the TCP window then according to the video data volume current in the mobile network current signal-to-noise ratio and caching for thresholding
It is small.
For example, the transmission of video agreement is HLS protocol or DASH agreement, rank is downloaded in the fragment of the video data
Section, the current signal-to-noise ratio of the mobile network (Signal to Interference plus Noise Ratio, abbreviation SINR)
Lower than 20dB, then according to the video data volume current in the mobile network current signal-to-noise ratio and caching, reduce the TCP window
Mouth size, the method for reducing the TCP window size is consistent with method described in step S204, and details are not described herein again.
The embodiment of the present invention is downloaded according to the adjustment video data of network quality and the transmission of video protocol self-adapting of use
TCP window size or fragment downloading starting wait timing, adjust video data transmission speed in real time according to network quality to realize
Rate improves video data transmission efficiency, improves network resource utilization.
Fig. 3 is the structure chart that mobile network video transmission provided in an embodiment of the present invention optimizes device.The embodiment of the present invention
The mobile network video transmission optimization device of offer can execute the place of mobile network video transmission optimization method embodiment offer
Process is managed, the optimization device of mobile network video transmission described in the present embodiment specifically can be the user in above method embodiment
One client of terminal, is also possible to user terminal, as shown in figure 3, mobile network video transmission optimization device 30 includes obtaining
Modulus block 31, adjustment module 32, download module 33, wherein obtain the mobile network that module 31 is used to obtain mobile terminal connection
Quality, the mobile network provides Video service for the mobile terminal；Obtain the corresponding transmission of video of the Video service
Agreement；Module 32 is adjusted to be used to be adjusted under the mobile terminal according to the mobile network quality and the transmission of video agreement
Transmission control protocol TCP window size and/or fragment downloading starting when carrying video data wait timing；Download module 33 is used for
Timing is waited according to the TCP window size and/or fragment downloading starting, downloads the video data.
The quality of the mobile network includes following at least one: the signal-to-noise ratio of the mobile network, the mobile network
Signal strength；The transmission of video agreement includes following at least one: HPD agreement, HLS protocol and DASH agreement.
When the transmission of video agreement is HPD agreement, adjustment module 32 is specifically used for: in the full gear of the video data
Rate download phase, if the mobile network quality is less than network quality thresholding, according to the current signal-to-noise ratio of the mobile network
With the video data volume current in caching, reduce the TCP window size；Rank is downloaded in the suppression speed of the video data
Section, if the mobile network quality is greater than network quality thresholding, according to the current signal-to-noise ratio of the mobile network and the net
Network quality threshold increases the TCP window size；In the suppression speed download phase of the video data, if the mobile network
Network quality is less than network quality thresholding, then according to video data current in the mobile network current signal-to-noise ratio and caching
Amount, reduces the TCP window size.
When the transmission of video agreement is HLS protocol or DASH agreement, adjustment module 32 is specifically used for: in the video
The pause download phase of data if the mobile network quality is greater than first network quality threshold, and caches less than, it is determined that institute
Stating fragment downloading starting and waiting timing is 0；In the pause download phase of the video data, if the mobile network quality is less than
Second network quality thresholding, and the video data volume current in the caching is not less than buffering alarming threshold, it is determined that described point
It is not 0 that piece downloading starting, which waits timing,；In the pause download phase of the video data, if the mobile network quality is less than
Two network quality thresholdings, and the video data volume current in the caching is lower than buffering alarming threshold, it is determined that under the fragment
Carrying starting and waiting timing is 0；Wherein, the first network quality threshold is greater than the second network quality thresholding；The buffering
There is the probability of Caton for characterizing video playing in alarming threshold.Adjustment module 32 is also used under the fragment of the video data
It is the load stage, gentle according to the current signal-to-noise ratio of the mobile network if the mobile network quality is less than network quality thresholding
Current the video data volume in depositing reduces the TCP window size.
The embodiment of the present invention is downloaded according to the adjustment video data of network quality and the transmission of video protocol self-adapting of use
TCP window size or fragment downloading starting wait timing, adjust video data transmission speed in real time according to network quality to realize
Rate improves video data transmission efficiency, improves network resource utilization.
In conclusion adjustment video of the embodiment of the present invention according to network quality and the transmission of video protocol self-adapting of use
Data download TCP window size or fragment downloading starting waits timing, adjust video counts in real time according to network quality to realize
According to transmission rate, video data transmission efficiency is improved, network resource utilization is improved.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the present invention
The part steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. it is various
It can store the medium of program code.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each functional module
Division progress for example, in practical application, can according to need and above-mentioned function distribution is complete by different functional modules
At the internal structure of device being divided into different functional modules, to complete all or part of the functions described above.On
The specific work process for stating the device of description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
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 (10)
1. a kind of mobile network video transmission optimization method characterized by comprising
The quality of the mobile network of mobile terminal connection is obtained, the mobile network provides Video service for the mobile terminal；
Obtain the corresponding transmission of video agreement of the Video service；
If the transmission of video agreement is HPD agreement, under the full rate download phase and suppression speed of the video data
The load stage adjusts the mobile terminal foradownloaded video according to the video data volume current in the mobile network quality and caching
Transmission control protocol TCP window size when data；
If the transmission of video agreement is HLS protocol or DASH agreement, the video data pause download phase according to
Current the video data volume adjustment fragment downloading starting waits timing in mobile network quality and caching, in the video data
Fragment download phase downloads window size according to the video data volume adjustment TCP current in mobile network quality and caching；
Timing is waited according to the TCP window size and/or fragment downloading starting, downloads the video data.
2. the method according to claim 1, wherein the quality of the mobile network includes following at least one:
The signal-to-noise ratio of the mobile network, the mobile network signal strength.
3. according to the method described in claim 2, it is characterized by further comprising:
In the full rate download phase of the video data, if the mobile network quality is less than network quality thresholding, basis
Current the video data volume, reduces the TCP window size in the mobile network current signal-to-noise ratio and caching；
In the suppression speed download phase of the video data, if the mobile network quality is greater than network quality thresholding, root
According to the video data volume current in the mobile network current signal-to-noise ratio and caching, increase the TCP window size；
In the suppression speed download phase of the video data, if the mobile network quality is less than network quality thresholding, root
According to the video data volume current in the mobile network current signal-to-noise ratio and caching, reduce the TCP window size.
4. according to the method described in claim 2, it is characterized by further comprising:
In the pause download phase of the video data, if the mobile network quality is greater than first network quality threshold, and slow
It deposits less than, it is determined that it is 0 that the fragment downloading starting, which waits timing,；
In the pause download phase of the video data, if the mobile network quality less than the second network quality thresholding, and institute
The video data volume current in caching is stated not less than buffering alarming threshold, it is determined that the fragment downloading starts waiting timing and is not
0；
In the pause download phase of the video data, if the mobile network quality less than the second network quality thresholding, and institute
The video data volume current in caching is stated lower than buffering alarming threshold, it is determined that it is 0 that the fragment downloading starting, which waits timing,；
Wherein, the first network quality threshold is greater than the second network quality thresholding；
There is the probability of Caton for characterizing video playing in the buffering alarming threshold.
5. according to the method described in claim 4, it is characterized by further comprising:
In the fragment download phase of the video data, if the mobile network quality is less than network quality thresholding, according to institute
The video data volume current in mobile network current signal-to-noise ratio and caching is stated, the TCP window size is reduced.
6. a kind of mobile network video transmission optimizes device characterized by comprising
Module is obtained, the quality of the mobile network for obtaining mobile terminal connection, the mobile network is the mobile terminal
Video service is provided；Obtain the corresponding transmission of video agreement of the Video service；
Module is adjusted, if being HPD agreement for the transmission of video agreement, in the full rate download phase of the video data
The movement is adjusted according to the video data volume current in the mobile network quality and caching with suppression speed download phase
Transmission control protocol TCP window size when terminal downloads video data；If the transmission of video agreement is HLS protocol or DASH
Agreement, then in the pause download phase of the video data according to the video data volume tune current in mobile network quality and caching
The downloading starting of whole fragment waits timing, the video data fragment download phase according in mobile network quality and caching when
Preceding the video data volume adjustment TCP downloads window size；
Download module downloads the view for waiting timing according to the TCP window size and/or fragment downloading starting
Frequency evidence.
7. mobile network video transmission according to claim 6 optimizes device, which is characterized in that the matter of the mobile network
Amount includes following at least one:
The signal-to-noise ratio of the mobile network, the mobile network signal strength.
8. mobile network video transmission according to claim 7 optimizes device, which is characterized in that the adjustment module is specific
For: in the full rate download phase of the video data, if the mobile network quality is less than network quality thresholding, basis
Current the video data volume, reduces the TCP window size in the mobile network current signal-to-noise ratio and caching；In the view
The suppression speed download phase of frequency evidence, if the mobile network quality is greater than network quality thresholding, according to the mobile network
Current the video data volume, increases the TCP window size in network current signal-to-noise ratio and caching；In the suppression of the video data
Rate download phase processed, if the mobile network quality is less than network quality thresholding, according to the current letter of the mobile network
Make an uproar than with the video data volume current in caching, reduce the TCP window size.
9. mobile network video transmission according to claim 7 optimizes device, which is characterized in that the adjustment module is specific
For: in the pause download phase of the video data, if the mobile network quality is greater than first network quality threshold, and slow
It deposits less than, it is determined that it is 0 that the fragment downloading starting, which waits timing,；In the pause download phase of the video data, if described
Mobile network quality is less than the second network quality thresholding, and the video data volume current in the caching is not less than buffering alarm door
Limit, it is determined that it is not 0 that the fragment downloading starting, which waits timing,；In the pause download phase of the video data, if the shifting
Dynamic network quality is less than the second network quality thresholding, and the video data volume current in the caching is lower than buffering alarming threshold,
Then determining that the fragment downloading starting waits timing is 0；
Wherein, the first network quality threshold is greater than the second network quality thresholding；
There is the probability of Caton for characterizing video playing in the buffering alarming threshold.
10. mobile network video transmission according to claim 9 optimizes device, which is characterized in that the adjustment module is also
For the fragment download phase in the video data, if the mobile network quality is less than network quality thresholding, according to institute
The video data volume current in mobile network current signal-to-noise ratio and caching is stated, the TCP window size is reduced.
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| CN109218847B (en) * | 2017-06-30 | 2022-03-04 | 中兴通讯股份有限公司 | Download control method and device and multimedia terminal |
| CN109803167A (en) * | 2017-11-17 | 2019-05-24 | 中国电信股份有限公司 | Stream media document transmission method, streaming media clients and computer readable storage medium |
| CN110149299B (en) * | 2018-02-13 | 2022-06-21 | 中兴通讯股份有限公司 | Video optimization method, device and system, terminal and network equipment |
| CN118646931A (en) * | 2020-11-18 | 2024-09-13 | 花瓣云科技有限公司 | Audio and video processing method and device and storage medium |
| CN114286038B (en) * | 2021-12-27 | 2024-03-22 | 中国联合网络通信集团有限公司 | Video data transmission method, airborne terminal, computer equipment and storage medium |
| CN115834975B (en) * | 2022-11-17 | 2024-05-17 | 中国联合网络通信集团有限公司 | Video transmission method, device, equipment and medium |
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