CN104822073B - The method of multi-medium data dynamically distributes flow between unilateral network and bilateral network - Google Patents
The method of multi-medium data dynamically distributes flow between unilateral network and bilateral network Download PDFInfo
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- CN104822073B CN104822073B CN201410043964.4A CN201410043964A CN104822073B CN 104822073 B CN104822073 B CN 104822073B CN 201410043964 A CN201410043964 A CN 201410043964A CN 104822073 B CN104822073 B CN 104822073B
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Abstract
Present invention is disclosed a kind of method of multi-medium data dynamically distributes flow between unilateral network and bilateral network, including unilateral network, bilateral network, server and terminal, comprise the following steps:Information to be transmitted is divided into first content and the second content;Server sends first content by unilateral network, and the second content is sent by bilateral network, and detects the terminal received quantity of the second content;When terminal received quantity is more than default first threshold value, server sends the second content by unilateral network.Technical scheme is employed, by rationally setting first content and the second content, the congestion of traditional bilateral network can be slowed down, while the unidirectional broadcast network transmission resource of higher efficiency is kept for the data streaming service of higher efficiency demand.
Description
Technical field
Technical field of the present invention includes unidirectional broadcast network, two-way IP network, internet message communication, network data
The fields such as transmission encapsulation.
Background technology
The content of general character can be passed through unidirectional physical channel by traditional television network broadcast(Either ground, wired
Or satellite mode), all terminals in signal receiving area are directly sent to by single launch point.Terminal can receive,
It is only related with signal covering quality, and it is unrelated with the quantity of terminal.Therefore, in the data transfer of such unidirectional point to face
In network, there is no the situation of network congestion.The data transmitted are needed, can be according to the data band given in One-to-All Broadcast passage
Width, receiving terminal is transmitted to substantially invariable transfer rate by transmitting terminal.But what in the network, all terminals received is identical
Content.
The emerging multimedia content deliveries based on two-way IP network, then be very different with aforesaid way.All ends
End can ask for multi-medium data by duplex channel to server, and server is initiated data to terminal further according to content requests and passed
Send.The content transmitted between server and multiple terminals can be entirely different.When multiple terminals initiate data to server at the same time
During request, server easily triggers the congestion of data transfer due to the limitation of server-side network outlet bandwidth, so that pair can be with
The terminal quantity for receiving service at the same time has limited.
With advances in technology, currently existing can be by unidirectional broadcast network but also by two-way IP network to end
End sends the server of content, while also there is the terminal device that can receive two kinds of network datas at the same time.But multimedia
Transmission selection of the data in two kinds of networks is often static.That is, if terminal selection receives certain from unidirectional broadcast network
Kind multi-medium data, then all receive this kind of multi-medium data from unidirectional broadcast network, will not transfer from two-way IP from beginning to end
Network obtains multi-medium data up.Vice versa, if terminal selection receives certain multi-medium data from two-way IP network,
This kind of multi-medium data is then all received from two-way IP network from beginning to end, will not be transferred more to being obtained from unidirectional broadcast network
Media data.This ineffective activity, is likely to result on efficient unidirectional broadcast network and transfers the very few data of receiving terminal,
And then since excessive receiving terminal causes network congestion on two-way IP network, influence the data service quality of receiving terminal.Therefore
Continue a kind of method, can be according to different which type of data of multimedia data request reasonable distribution of each terminal from One-to-All Broadcast
Transmission, which type of data are transmitted from two-way IP network on network.
The content of the invention
The purpose of the present invention aims to provide a kind of multi-medium data dynamically distributes flow between unilateral network and bilateral network
Method so that the data at multimedia server end can pass through two kinds of network phases according to the differentiation content requirements of multiple terminals
With reference to transmission to each terminal;At the same time server by the basis for estimation of formulation come distribute data from two kinds of networks it is any into
Row transmission, so as to keep the data traffic on two kinds of networks the most efficient.
According to the present invention, there is provided a kind of side of multi-medium data dynamically distributes flow between unilateral network and bilateral network
Method, including unilateral network, bilateral network, server and terminal, comprise the following steps:Information to be transmitted is divided into first content
With the second content;Server sends first content by unilateral network, and the second content is sent by bilateral network, and detects
The terminal received quantity of second content;When terminal received quantity is more than default first threshold value, server is by second
Hold and sent by unilateral network.
Preferably, when the second content is sent by unilateral network, server detects the terminal received quantity of the second content, when
When terminal received quantity is less than default second threshold value, server sends the second content by bilateral network.
Preferably, first content is a video flowing and the first audio stream corresponding with video flowing, the first data flow, second
Content is the second audio stream corresponding with video flowing, the second data flow.
Preferably, when terminal received quantity is more than the first threshold value, server sends out the second content by One-to-All Broadcast
Send, and notify all terminals.
Preferably, when terminal received quantity is less than the second threshold value, server sends out the second content by bidirectional broadcast
Send, and notify all terminals.
Technical scheme is employed, by rationally setting first content and the second content, can be slowed down traditional
The congestion of bilateral network, while the unidirectional broadcast network transmission resource of higher efficiency is kept for the data of higher efficiency demand
Stream business.
Brief description of the drawings
In the present invention, identical reference numeral represents identical feature all the time, wherein:
The structure diagram that Fig. 1 is unilateral network and bilateral network is used in combination;
Fig. 2 is server and the interaction schematic diagram of terminal.
Embodiment
There is provided multimedia contents service server and consuming multimedia content multiple terminals at the same time and One-to-All Broadcast
Network and two-way IP network are connected.Specific connection mode is shown in Fig. 1.
Server should at least possess following function:By complete multimedia messages(Comprising but be not limited only to video, sound,
Picture, word, animation, webpage)Fluidize as multiple Various types of data streams synchronized with each other(Such as video flowing, audio stream, data flow)、
Data flow is adapted to so that data flow can on it be transmitted, can independently determined with unidirectional broadcast network or two-way IP network
Various types of data stream transmits on which of two kinds of networks, two-way IP network progress message communicating, energy is based on each terminal
Dynamically data flow transmitted from unidirectional broadcast network then from two-way IP network transmission or vice versa, each terminal can be received send
Data stream reception status information and collect decision-making.
Terminal should at least possess following function:Possess while receive Various types of data from unidirectional broadcast network and two-way IP network
The ability of stream, all kinds of multimedia data streams can be received, be cached, synchronization, decoding and finally according to user requirement reduction
Needed for multimedia messages for customer consumption, according to user to the relevant multimedia data stream of server request transmission, Neng Gouxiang
Server reports the state for itself receiving data flow.
Illustrate the method for dynamically distributes flow with actual case below, idiographic flow is shown in Fig. 2.
Server needs one group of multimedia messages fluidisation and each data flow is carried out time synchronization first.For example,
Video frequency program containing two-way language accompanying audio soundtrack and two kinds of corresponding spoken and written languages subtitles, will be fluidized to video flowing V, a sound
Frequency stream L1, audio stream L2, data flow S1 and data flow S2.Video flowing, audio stream and data flow should be synchronous in time, so as to
Terminal user, which watches, to listen to.Server Default is by video flowing V, audio track L1 and data flow S1(First content)Pass through One-to-All Broadcast
Passage is sent to all terminals.Total coterminal quantity is N number of in net.Server possesses two switching threshold TI2B(First
Limit value)And TB2I(Second threshold value).TI2B corresponds to switching threshold of the two-way IP network to unidirectional broadcast network, and TB2I corresponds to single
Switching threshold to from radio network to two-way IP network.
During original state, audio stream L2 and data flow S2 is asked to server(Second content)Terminal quantity be less than
TI2B.All terminals obtain video data stream V from one-way broadcasting network at this time, do not carry the end of additional audio stream and data flow requirements
End obtains audio stream L1 and data flow S1 from unidirectional broadcast network, is decoded in the lump and synchronous, forms complete first language
Kind multimedia messages are presented.And remaining proposes the terminal of the second languages multimedia request, then obtained from two-way IP network relevant
Audio stream L2 and data flow S2.These terminals are by the video flowing V1 obtained from unidirectional broadcast network with being obtained from two-way IP network
The audio stream L2 and data flow S2 taken is decoded in the lump and synchronous, the complete second languages multimedia presentation of formation.All ends
Which kind of data flow end notification server itself obtains from which kind of network.
When asking the terminal quantity of the second languages service more than TI2B, server will be audio stream L2 and data flow S2
It is put on unidirectional broadcast network and transmits, notifies all terminals afterwards:Audio stream L2 and data flow S2 can also be from One-to-All Broadcast
Network obtains.Originally the terminal of video flowing L2 and data flow S2 was obtained after this message is learned from two-way IP network, it is then excellent
Choosing goes to obtain same data flow from unidirectional broadcast network, while the transmission that stopped same data stream on two-way IP network please
Ask.Since the terminal that L2 and S2 data flows are obtained by two-way IP network will be reduced up to disappearing, the flow on two-way IP network
It can reduce, so as to avoid congestion.And the data traffic on unidirectional broadcast network has lifting, but since it has serviced numerous one
The terminal of cause demand V2 and S2, all in all, system or efficient.Last each terminal is by respectively since what which kind of network obtains
Information as kind data flow, is reported to server.
When unidirectional broadcast network transfers V, L1, L2, S1 and S2 stream at the same time, if server finds to connect on broadcast channel
The terminal quantity for receiving L2 and S2 is less than TB2I, then server will be changed to obtain from two-way IP network by the corresponding terminal of message informing
Take L2 and S2.After terminal obtains message, request is sent from two-way IP network to server and obtains L2 and S2, reinforms clothes afterwards
Business device itself has been completed the streamed switching of code.When server finds to receive the visitor of L2 and S2 yet by unidirectional broadcast network
Family has compeled to be bordering on zero, then server removes L2 and S2 from unidirectional broadcast network, then provides service from two-way IP network.
By rationally setting TB2I, since the terminal quantity for obtaining L2 and S2 by two-way IP network is relatively limited, it is unlikely to cause IP
The congestion of network, while the unidirectional broadcast network transmission resource of higher efficiency is kept for the data flow industry of higher efficiency demand
Business.
Under normal conditions, TI2B>TB2I.
Claims (5)
1. a kind of method of multi-medium data dynamically distributes flow between unilateral network and bilateral network, including it is unilateral network, double
To network, server and terminal, it is characterised in that comprise the following steps:
Information to be transmitted is divided into first content and the second content;
When original state is that server sends first content by unilateral network, the second content is sent by bilateral network
In the case of, and detect the terminal received quantity of second content;First default more than one when the terminal received quantity
During limit value, server sends second content by the unilateral network,
When original state is server by first content and the second content by unilateral network while in the case of transmitting, if service
The terminal quantity that device detection receives the second content in unilateral network is less than the second threshold value, then is changed to obtain by bilateral network
Second content.
2. the method for multi-medium data as claimed in claim 1 dynamically distributes flow between unilateral network and bilateral network, its
It is characterized in that, when second content is sent by unilateral network, server detects the terminal received quantity of second content,
When the terminal received quantity is less than default second threshold value, second content is passed through the Two-way Network by server
Network is sent.
3. the method for multi-medium data as claimed in claim 1 dynamically distributes flow between unilateral network and bilateral network, its
It is characterized in that, the first content is a video flowing and the first audio stream corresponding with the video flowing, the first data flow, institute
The second content is stated as the second audio stream corresponding with the video flowing, the second data flow.
4. the method for multi-medium data as claimed in claim 2 dynamically distributes flow between unilateral network and bilateral network, its
It is characterized in that, when the terminal received quantity exceedes first threshold value, the second content is passed through One-to-All Broadcast by server
Send, and notify all terminals.
5. the method for multi-medium data as claimed in claim 2 dynamically distributes flow between unilateral network and bilateral network, its
It is characterized in that, when the terminal received quantity is less than second threshold value, the second content is passed through bidirectional broadcast by server
Send, and notify all terminals.
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CN112019442B (en) * | 2020-08-13 | 2023-09-26 | 上海哔哩哔哩科技有限公司 | Data distribution method, system, equipment and medium based on bounded consistency Hash algorithm |
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CN101237497A (en) * | 2007-02-02 | 2008-08-06 | 中国科学院计算技术研究所 | On-demand broadcasting method for broadcasting system with reverse channel |
CN103428222A (en) * | 2013-08-27 | 2013-12-04 | 上海数字电视国家工程研究中心有限公司 | Information distributing system and method |
CN103428580A (en) * | 2012-07-06 | 2013-12-04 | 上海数字电视国家工程研究中心有限公司 | Digital television heterogeneous network structure |
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FR2903256B1 (en) * | 2006-07-03 | 2008-10-31 | Alcatel Sa | METHOD FOR FRAGMENTATION OF SG GUIDES, SERVER AND TERMINAL FOR A RADIO COMMUNICATION NETWORK |
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CN101034968A (en) * | 2007-01-11 | 2007-09-12 | 华为技术有限公司 | System, method and device for providing the bidirectional service in the separated bidirectional network |
CN101237497A (en) * | 2007-02-02 | 2008-08-06 | 中国科学院计算技术研究所 | On-demand broadcasting method for broadcasting system with reverse channel |
CN103428580A (en) * | 2012-07-06 | 2013-12-04 | 上海数字电视国家工程研究中心有限公司 | Digital television heterogeneous network structure |
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