CN102694831A - Data compensation method of streaming media of mobile terminal and data compensation system thereof, and content distribution network - Google Patents

Data compensation method of streaming media of mobile terminal and data compensation system thereof, and content distribution network Download PDF

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Publication number
CN102694831A
CN102694831A CN2011100729179A CN201110072917A CN102694831A CN 102694831 A CN102694831 A CN 102694831A CN 2011100729179 A CN2011100729179 A CN 2011100729179A CN 201110072917 A CN201110072917 A CN 201110072917A CN 102694831 A CN102694831 A CN 102694831A
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flow
medium performance
node
code check
content
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CN102694831B (en
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庞涛
武娟
黄海
龙斌
张志健
梁洁
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Abstract

The embodiments of the invention disclose a data compensation method of a streaming media of a mobile terminal and a data compensation system thereof, and a content distribution network (CDN). The method comprises the following steps that: a personal computer (PC) sends a first node obtaining request message to a node scheduling server, receives a first obtaining response message returned by the node scheduling server, and determines whether there is a peer-to-peer (P2P) node storing low-bit rate content data of a streaming media program; if so, the low-bit rate content data of the streaming media program are downloaded from the P2P node and are stored; if not, the low-bit rate content data of the streaming media program are downloaded from a content server and are stored; the node scheduling server is required to add a first shared entry to a program shared state table, so that a follow-up mobile terminal can download the low-bit rate content data of the streaming media program from the PC. According to the embodiments of the invention, P2P sharing of content data of a streaming media program can be realized between a mobile terminal and a PC and thus sharing of the P2P can be effectively utilized to save network resources, thereby reducing the bandwidth stress and lowering system deployment and cost.

Description

Mobile terminal streaming compensation data method and system, content distributing network
Technical field
The present invention relates to the communication technology, especially a kind of mobile terminal streaming compensation data method and system, content distributing network (Content Distribution Network, hereinafter to be referred as: CDN).
Background technology
Streaming Media is meant the mode media formats that (Internet) or Intranet (Intranet) are play in the Internet that adopts stream transmission, for example: audio frequency, video or multimedia file.Streaming Media is not downloaded whole file before broadcast, only will begin partial content deposits internal memory in, in computer, packet is carried out buffer memory and media data is correctly exported.The data flow of Streaming Media transmits at any time at any time and plays, just some delay when beginning.Obviously; The key technology that Streaming Media is realized is transmitted as a stream exactly; Stream transmission mainly refers to multimedia files such as whole Voice & Video and three-dimensional medium are resolved to compressed package one by one through specific compress mode, by video server to subscriber computer order or transmission in real time.In the system that adopts the stream transmission mode; The user needn't wait until as adopting downloading mode that whole download of whole file finishes; But the startup time-delay that only need pass through seconds or tens of seconds can utilize the audio/video (Audio/Video of decompression apparatus to compression on user's computer; Hereinafter to be referred as: A/V), 3-D graphic (three-dimensional; Hereinafter to be referred as: 3D) wait and to play behind the multimedia file decompress(ion) and watch, the remainder of multimedia file will continue download in the server on backstage this moment.Therefore, subscriber computer need not to download complete video and gets final product playing media data.Compare with simple downloading mode, this stream transmission mode that media data is play while downloading not only makes and starts time-delay shortening significantly, and the demand of system cache capacity is also reduced greatly, greatly reduces user's stand-by period.
In moving communicating field; Mobile terminal streaming is different with popular Streaming Media; Because the performance of portable terminal is different; And receive the restriction of mobile communications network stability, portable terminal and personal computer (personal computer, hereinafter to be referred as: PC) very big difference is arranged all on Video processing ability and fulfillment capability.Therefore, in order to make the flow-medium performance of watching that mobile phone users can be smooth, just need compress accordingly Streaming Media.In order to adapt to different mobile terminals; Content server can be compressed into the content-data of same flow-medium performance the video flowing of various code rate; For example: be compressed into the content-data that is adapted at the last high code check of playing of PC to common PC, be compressed into the content-data of the low code check that is fit to mobile terminal playing to portable terminal.
In realizing process of the present invention, the inventor finds that Streaming Media has been realized sharing of point-to-point download (peer-to-peer is hereinafter to be referred as P2P) on PC at present.Because P2P shares can only be based on the content-data of Unified coding form and same bit rate stream media program, cause the content-data of flow-medium performance can only be between PC and PC, and between portable terminal and the portable terminal, realize that P2P is shared.Because mobile terminal streaming also is in common client end/server end (Client/Server; Hereinafter to be referred as: C/S) in the frame structure; Just can't effectively utilize sharing of P2P, the content-data of the flow-medium performance of portable terminal all derives from content server, causes very big bandwidth pressure to content server; Greatly wasted the limited wireless Internet resources, and system deployment and operation cost are higher.
Summary of the invention
Embodiment of the invention technical problem to be solved is: a kind of mobile terminal streaming compensation data method and system, content distributing network are provided; P2P with the content-data of realization flow-medium performance between portable terminal and PC shares; Effectively utilize sharing of P2P to save Internet resources; Reduce bandwidth pressure, reduce system deployment and operation cost.
For solving the problems of the technologies described above, a kind of mobile terminal streaming compensation data method that the embodiment of the invention provides comprises:
Personal computer PC is sent first node to the node scheduling server and is obtained request message; Said first node obtains and comprises pc user's information and flow-medium performance sign ID in the request message, is used for the point-to-point download P2P nodal information that acquisition request content distributing network CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified;
Said PC receives said node scheduling server and first obtains response message to what said first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to said first, judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN;
If said first obtains and comprise the P2P nodal information in the response message, said PC downloads the content-data and the storage of the low code check of said flow-medium performance according to said P2P nodal information from said P2P node; If said first obtains and do not comprise the P2P nodal information in the response message, the content server of said PC from said CDN downloaded the content-data and the storage of the low code check of said flow-medium performance;
Said PC reports first-class media program to share message to said node scheduling server, and said first-class media program is shared and comprised said pc user's information, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server increases by first and shares list item in program shared state table; Said first shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the low code check sign, so that the content-data of the low code check of said flow-medium performance is downloaded at the subsequent movement terminal from said PC.
A kind of moving terminal stream medium data bucking-out system that the embodiment of the invention provides comprises PC and node scheduling server;
Said PC; Be used for sending first node and obtain request message to the node scheduling server; Said first node obtains and comprises pc user's information and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified; Receive said node scheduling server and first obtain response message to what said first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to said first, judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN; If said first obtains and comprise the P2P nodal information in the response message,, download the content-data and the storage of the low code check of said flow-medium performance from said P2P node according to said P2P nodal information; If said first obtains and do not comprise the P2P nodal information in the response message, the content server from said CDN is downloaded the content-data and the storage of the low code check of said flow-medium performance; Report first-class media program to share message to said node scheduling server, said first-class media program is shared and is comprised said pc user's information, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server is used to receive said first node and obtains request message, whether has first sharing table that comprises said flow-medium performance ID and low code check sign in the inquiry program shared state table, and returns first to said PC and obtain response message; If there is first sharing table comprise said flow-medium performance ID and low code check sign, said first obtains and comprises in the response message that said flow-medium performance ID and low code check identify corresponding P2P nodal information; And receive said first-class media program and share message; In program shared state table, increase by first and share list item; Said first shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the low code check sign, so that the content-data of the low code check of said flow-medium performance is downloaded at the subsequent movement terminal from said PC.
A kind of content distributing network that the embodiment of the invention provides comprises the content server of the content-data of high code check of stored stream media program and low code check, also comprises the mobile terminal streaming compensation data system of the above embodiment of the present invention.
The mobile terminal streaming compensation data method and system, the content distributing network that provide based on the above embodiment of the present invention; PC can obtain the content-data and the storage of the low code check of flow-medium performance from CDN; And report first-class media program to share message to the node scheduling server; The node scheduling server is shared message according to first-class media program increases by the first shared list item in program shared state table, this first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign, and the subsequent movement terminal edge can be downloaded the content-data of the low code check of this flow-medium performance from this PC; Thereby the P2P that between portable terminal and PC, realizes the content-data of flow-medium performance shares; Compared with prior art, portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again, effectively utilizes sharing of P2P to save Internet resources; Alleviate the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment of mobile terminal streaming compensation data method of the present invention;
Fig. 2 is the flow chart of another embodiment of mobile terminal streaming compensation data method of the present invention;
Fig. 3 is the structural representation of a mobile terminal streaming compensation data embodiment of system of the present invention;
Fig. 4 is the structural representation of an embodiment of CDN of the present invention;
Fig. 5 is the structural representation of an application implementation example of CDN of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Because present PC technology develops rapidly with Internet technology; The network bandwidth and the memory property of PC are greatly improved; Do not received too many restriction at this aspect two at present, but with respect to PC, the network speed and the memory property of portable terminal are more limited.The embodiment of the invention selects use PC to download and store the content-data that the flow-medium performance that is suitable for mobile terminal playing hangs down code check, makes PC not only as the P2P client but also as the P2P server, realizes the stream medium data compensation of portable terminal.
Fig. 1 is the flow chart of an embodiment of mobile terminal streaming compensation data method of the present invention.As shown in Figure 1, the method for this embodiment comprises following flow process:
Step 101; PC sends first node to the node scheduling server and obtains request message; This first node obtains and comprises pc user's information in the request message, for example: pc user's IP address etc., and flow-medium performance sign (identification; Hereinafter to be referred as: ID); This first node obtain request message be used for the acquisition request content distributing network (Content Distribution Network, hereinafter to be referred as: have the P2P nodal information of the content-data of the low code check of flow-medium performance that flow-medium performance ID identified CDN), for example: the information of P2P nodes of unique identification such as the title of P2P node ID, P2P node, P2P address of node; Particularly, the P2P node here can be PC or portable terminal.
Step 102; PC receiving node dispatch server first obtains response message to what first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to first, judge the content-data whether low code check of P2P node stored stream media program is arranged among the CDN.If first obtains and comprises the P2P nodal information in the response message, execution in step 103.Otherwise, if first obtain and do not comprise the P2P nodal information in the response message, execution in step 104.
Step 103, PC is according to the first P2P nodal information that obtain in the response message, from the content-data and the storage of the low code check of P2P node download stream media program.Execution in step 105 then.
Step 104, the content-data of the low code check of the content server download stream media program of PC from CDN and storage.
Step 105; PC reports first-class media program to share message to the node scheduling server; This first-class media program is shared and is comprised pc user's information, flow-medium performance ID and low code check sign in the message, and this low code check sign is used to identify the content-data of the content-data of flow-medium performance for low code check, for example; Can be designated 0 through low code check is set, identify the content-data of the content-data of flow-medium performance for low code check.
Step 106; The node scheduling server increases by first and shares list item in program shared state table; This first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign, so that the content-data of the low code check of download stream media program is gone up at the subsequent movement terminal from PC.
Through this operation, said PC just can be used as the P2P node, and the content-data of the low code check of flow-medium performance is provided to portable terminal.
The mobile terminal streaming compensation data method that the above embodiment of the present invention provides; PC can obtain the content-data and the storage of the low code check of flow-medium performance from CDN; And report first-class media program to share message to the node scheduling server; The node scheduling server is shared message according to first-class media program increases by the first shared list item in program shared state table; This first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign, and the subsequent movement terminal edge can be downloaded the content-data of the low code check of this flow-medium performance from this PC, thereby the P2P of the content-data of realization flow-medium performance is shared between portable terminal and PC; Portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again; Effectively utilize sharing of P2P to save Internet resources, alleviated the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
As a specific embodiment of the present invention; In the embodiment shown in fig. 1 before the flow process of step 101; PC can send Section Point to the node scheduling server obtain request message, from CDN, obtains content-data and decompress(ion), the broadcast of the high code check of flow-medium performance that flow-medium performance ID identified.Specifically can realize through following flow process: PC sends Section Point to the node scheduling server and obtains request message; This Section Point obtains and comprises pc user's information in the request message; With flow-medium performance ID; This Section Point obtains request message and is used for the P2P nodal information that acquisition request CDN has the content-data of the high code check of flow-medium performance that flow-medium performance ID identified, and particularly, the P2P node here can be PC; PC receiving node dispatch server second obtains response message to what Section Point obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to second, judge the content-data whether high code check of P2P node stored stream media program is arranged among the CDN; If second obtains and comprise the P2P nodal information in the response message, PC is according to the second P2P nodal information that obtain in the response message, from the content-data of the low code check of P2P node download stream media program and decompress(ion), broadcast; Otherwise, if second obtain and do not comprise the P2P nodal information in the response message, the content-data of the low code check of the content server download stream media program of PC from CDN and decompress(ion), broadcast.Afterwards; PC can report second flow-medium performance to share message to the node scheduling server; This second flow-medium performance is shared and to be comprised pc user's information, flow-medium performance ID and high code check sign in the message, and it is the content-data of high code check that this high code check identifies the content-data that is used to identify flow-medium performance, for example; Can be designated 1 through low code check is set, the content-data that identifies flow-medium performance is the content-data of high code check; The node scheduling server increases by second and shares list item in program shared state table; This second shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the high code check sign, so that follow-up other PC goes up the content-data of the high code check of download stream media program from PC.Through this operation, said PC just can be used as the P2P node, and the content-data of the high code check of flow-medium performance is provided to other PC.
Through the above embodiment of the present invention, downloaded all the elements data of flow-medium performance on the PC as the P2P node, comprise the content-data of high code check and the data content of low code check.Like this in CDN; PC be the P2P client be again the P2P server, not only as the server of other pc client, can also be as the server of portable terminal; Simultaneously oneself is also at the content-data of download stream media program from the CDN constantly; So just formed the network configuration of a grid type, can not only guarantee the stable smooth normal play of Streaming Media on the portable terminal, can also improve the P2P data between nodes and share; Save the bandwidth of content server, lower the cost of system deployment and operation.
Further; As another specific embodiment of the present invention; Obtain the content-data of the low code check of flow-medium performance in P2P node or the content server of PC from CDN and begin to begin decompress(ion), broadcast through player, can stablize the content-data of the high code check of playing stream media program smoothly at player, that is: broadcast does not exist when cushioning; Send first node to the node scheduling server and obtain request message, thereby begin to carry out flow process embodiment illustrated in fig. 1.
In addition; Also can be in content server or the high code check content-data of P2P node download stream media program or before at PC; Download the content-data of the low code check of unified program, perhaps, also can be in advance from the content-data fragment of content server or the low code check of P2P node download stream media program; Downloading the content-data of high code check from content server or P2P node and can stablizing when playing smoothly, continue other part that the download stream media program hangs down the content-data of code check again.
Fig. 2 is the flow chart of another embodiment of mobile terminal streaming compensation data method of the present invention.Among this embodiment; When obtaining the content-data of the low code check of flow-medium performance in P2P node or the content server of PC from CDN and can stablize the content-data of the high code check of playing stream media program smoothly; Beginning to carry out following flow process is that example describes, unrestricted for the situation of carrying out the present embodiment flow process in other cases.Show that like Fig. 2 it comprises following flow process:
Step 201; PC sends first node to the node scheduling server and obtains request message; This first node obtains and comprises pc user's information in the request message; With flow-medium performance ID, this first node obtains request message and is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that flow-medium performance ID identified.
Whether step 202 has P2P node storage first node to obtain the content-data of the low code check of flow-medium performance that flow-medium performance ID is identified in the request message, and returns first to PC and obtain response message among the node scheduling server lookup CDN.If the content-data of the low code check of flow-medium performance of P2P node storage PC request is arranged, then obtains the P2P nodal information that also comprises the content-data of storing the low code check of this flow-medium performance in the response message first.
Step 203; PC receiving node dispatch server first obtains response message to what first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to first, judge the content-data whether low code check of P2P node stored stream media program is arranged among the CDN.If first obtains and comprises the P2P nodal information in the response message, execution in step 204.Otherwise, if first obtain and do not comprise the P2P nodal information in the response message, execution in step 205.
Step 204, PC is according to the first P2P nodal information that obtain in the response message, from the content-data and the storage of the low code check of P2P node download stream media program.Execution in step 206 then.
Step 205, the content-data of the low code check of the content server download stream media program of PC from CDN and storage.
In an embodiment of the present invention, can be suitable for the content-data of the flow-medium performance of different terminals in advance well in the content server deploy, for example: the content-data of the low code check of the content-data of the high code check of suitable PC, suitable portable terminal etc.
Step 206; PC reports first-class media program to share message to the node scheduling server; This first-class media program is shared and is comprised pc user's information, flow-medium performance ID and low code check sign in the message, and this low code check sign is used to identify the content-data of the content-data of flow-medium performance for low code check, for example; Can be designated 0 through low code check is set, identify the content-data of the content-data of flow-medium performance for low code check.
Step 207, node scheduling server increase by first and share list item in program shared state table, this first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign.
Step 208; Portable terminal sends the 3rd node to the node scheduling server and obtains request message; The 3rd node obtains and comprises mobile phone users ID and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that flow-medium performance ID identified.
Step 209; What portable terminal receiving node dispatch server returned the 3rd obtains response message; And obtain whether comprise the P2P nodal information in the response message according to the 3rd; Judge the content-data whether low code check of P2P node stored stream media program is arranged among the CDN, P2P node wherein comprises PC and portable terminal.If the 3rd obtains and comprises the P2P nodal information in the response message, execution in step 210.Otherwise, if the 3rd obtain and do not comprise the P2P nodal information in the response message, execution in step 211.
Step 210, portable terminal be according to the 3rd P2P nodal information that obtain in the response message, from the content-data of the low code check of P2P node download stream media program and carry out decompress(ion), broadcast.Execution in step 212 then.
The content-data of the low code check of step 211, the portable terminal content server download stream media program from CDN also carries out decompress(ion), broadcast.
Content server and P2P node separate among the CDN; Have only when portable terminal on the P2P node, obtain less than the request content-data the time just can be to content server requests content corresponding data; And when on the P2P node, having the content-data of mobile terminal request, portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again, effectively utilizes sharing of P2P to save Internet resources; Alleviate the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
Step 212, portable terminal reports the 3rd flow-medium performance to share message to said node scheduling server, and the 3rd flow-medium performance is shared and is comprised mobile phone users ID, flow-medium performance ID and low code check sign in the message.
Step 213; The node scheduling server increases the 3rd and shares list item in program shared state table; The 3rd shares list item comprises the correspondence relationship information between mobile phone users ID, flow-medium performance ID and the low code check sign, so that follow-up other portable terminal download stream media program from this portable terminal hangs down the content-data of code check.
Particularly, as another specific embodiment of the present invention, during the content-data of follow-up other portable terminal low code check of download stream media program from this portable terminal, can realize through the flow process of execution in step 208~step 211 or step 208~step 213.
Along with the broadcast of flow-medium performance constantly advances; Portable terminal can be through the flow process of repeated execution of steps 208~step 211 or step 208~step 213; From the corresponding P2P node of node scheduling whois lookup; Above corresponding P2P node, obtain the content-data of request, play until flow-medium performance and accomplish, reach the compensation data of mobile terminal streaming.
In various embodiments of the present invention; The content-data of flow-medium performance can be compressed into into different data blocks in advance; Be used as unit of transfer; With the form of serial number each data block is numbered again, in stream media network, transmits through the mode of data block numbering, the P2P client receive after each data block can according to each data block numbering to the data piece reduce, decompress(ion), broadcast.
Fig. 3 is the structural representation of a mobile terminal streaming compensation data embodiment of system of the present invention.The mobile terminal streaming compensation data system of this embodiment can be used for realizing the flow process of above-mentioned each the mobile terminal streaming compensation data method embodiment of the present invention.As shown in Figure 3, it comprises PC301 and node scheduling server 302.
Wherein, PC301 is used for sending first node to node scheduling server 302 and obtains request message; This first node obtains and comprises pc user's information and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that flow-medium performance ID identified; Receiving node dispatch server 302 first obtains response message to what first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to first, judge the content-data whether low code check of P2P node stored stream media program is arranged among the CDN; If first obtains and comprises the P2P nodal information in the response message, according to the P2P nodal information, from the content-data and the storage of the low code check of corresponding P2P node download stream media program; If first obtains and does not comprise the P2P nodal information in the response message, the content-data of the low code check of the content server download stream media program from CDN and storage; Report first-class media program to share message to node scheduling server 302, this first-class media program is shared and is comprised pc user's information, flow-medium performance ID and low code check sign in the message.
Node scheduling server 302 is used to receive the first node that PC301 sends and obtains request message, whether has first sharing table that comprises that flow-medium performance ID and low code check identify in the inquiry program shared state table, and returns first to PC301 and obtain response message; If there is first sharing table comprise flow-medium performance ID and low code check sign, then obtains and comprise in the response message that flow-medium performance ID and low code check identify corresponding P2P nodal information first; And the first-class media program that reception PC301 reports is shared message; In program shared state table, increase by first and share list item; This first correspondence relationship information of sharing between pc user's information that list item comprises PC301, flow-medium performance ID and the low code check sign is so that the content-data that the download stream media program hangs down code check is gone up from this PC301 in the subsequent movement terminal.
In the mobile terminal streaming compensation data system that the above embodiment of the present invention provides; PC can obtain the content-data and the storage of the low code check of flow-medium performance from CDN; And report first-class media program to share message to the node scheduling server; The node scheduling server is shared message according to first-class media program increases by the first shared list item in program shared state table; This first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign, and the subsequent movement terminal edge can be downloaded the content-data of the low code check of this flow-medium performance from this PC, thereby the P2P of the content-data of realization flow-medium performance is shared between portable terminal and PC; Portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again; Effectively utilize sharing of P2P to save Internet resources, alleviated the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
In addition; Another embodiment as mobile terminal streaming compensation data of the present invention system; PC301 can also be used for before obtaining request message to node scheduling server 302 transmission first nodes; Send Section Point to node scheduling server 302 and obtain request message; From CDN, obtain content-data and decompress(ion), the broadcast of the high code check of flow-medium performance that flow-medium performance ID identified, and report second flow-medium performance to share message to node scheduling server 302, this second flow-medium performance is shared the pc user's information, the flow-medium performance ID that comprise PC301 in the message and is identified with high code check.Accordingly; Node scheduling server 302 also is used to receive the shared message of second flow-medium performance that PC301 reports; In program shared state table, increase by second and share list item; This second correspondence relationship information of sharing between pc user's information that list item comprises PC301, flow-medium performance ID and the high code check sign is so that the content-data of follow-up other PC high code check of download stream media program from this PC301.
Further; Another embodiment as mobile terminal streaming compensation data of the present invention system; PC301 specifically can pass through the content-data of player decompress(ion), the high code check of playing stream media program; Can stablize the content-data of the high code check of playing stream media program smoothly at player, that is: when there is not buffering in the content-data of the high code check of playing stream media program, sends first node to node scheduling server 302 and obtain request message.
Again referring to Fig. 3; Another embodiment as mobile terminal streaming compensation data of the present invention system; In the mobile terminal streaming compensation data system of above-mentioned each embodiment of the present invention; Also comprise portable terminal 303; Be used for sending the 3rd node to node scheduling server 302 and obtain request message, the 3rd node obtains and comprises mobile phone users ID and flow-medium performance ID in the request message, is used for acquisition request CDN and has the P2P nodal information that flow-medium performance that flow-medium performance ID identified hangs down the content-data of code check; What receiving node dispatch server 302 returned the 3rd obtains response message; And obtain whether comprise the P2P nodal information in the response message according to the 3rd; Judge the content-data whether low code check of P2P node stored stream media program is arranged among the CDN, this P2P node comprises PC301 and portable terminal; If the 3rd obtains and comprises the P2P nodal information in the response message, according to the 3rd P2P nodal information that obtain in the response message, from the content-data of the low code check of corresponding P2P node download stream media program and carry out decompress(ion), broadcast; If the 3rd obtains and do not comprise the P2P nodal information in the response message, the content-data of the low code check of the content server download stream media program from CDN also carries out decompress(ion), broadcast; And reporting the 3rd flow-medium performance to share message to node scheduling server 302, the 3rd flow-medium performance is shared and is comprised in the message that mobile phone users ID, flow-medium performance ID identify with low code check.Accordingly; Node scheduling server 302 also is used for the shared message of the 3rd flow-medium performance that mobile terminal receive 303 reports; In program shared state table, increase the 3rd and share list item; The 3rd shares list item comprises the correspondence relationship information between mobile phone users ID, flow-medium performance ID and the low code check sign, so that follow-up other portable terminal download stream media program from the portable terminal hangs down the content-data of code check.
Fig. 4 is the structural representation of an embodiment of CDN of the present invention.The CDN of this embodiment can be used for realizing the corresponding function of CDN in above-mentioned each the mobile terminal streaming compensation data method and system of the present invention.As shown in Figure 4, it comprises content server 1 and mobile terminal streaming compensation data system 2.Wherein, content server 1 is used for the content-data of high code check of stored stream media program and low code check, and mobile terminal streaming compensation data system 1 specifically can adopt the structure shown in arbitrary embodiment shown in Figure 3 to realize.
Among the CDN that the above embodiment of the present invention provides; PC can obtain the content-data and the storage of the low code check of flow-medium performance from CDN; And report first-class media program to share message to the node scheduling server; The node scheduling server is shared message according to first-class media program increases by the first shared list item in program shared state table; This first shared list item comprises the correspondence relationship information between pc user's information, flow-medium performance ID and the low code check sign, and the subsequent movement terminal edge can be downloaded the content-data of the low code check of this flow-medium performance from this PC, thereby the P2P of the content-data of realization flow-medium performance is shared between portable terminal and PC; Portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again; Effectively utilize sharing of P2P to save Internet resources, alleviated the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
As shown in Figure 5, be the structural representation of the application implementation example of CDN that forms based on mobile terminal streaming compensation data of the present invention system.Referring to Fig. 5, each portable terminal wherein and PC are P2P nodes.1. represent wherein that PC, portable terminal mobile phone end are connected with the node scheduling server and to the content-data of content server requests flow-medium performance; 2. represent between PC and the PC node to share the content-data of sharing the low code check of flow-medium performance between content-data, portable terminal and the mobile terminal node of the high code check of flow-medium performance; 3. represent to share between portable terminal and the PC node content-data of the low code check of flow-medium performance; PC can be from the high code check of node download stream media program on CDN or other network and the data content of low code check, and portable terminal is to the data content of the low code check of PC request then.Through this application implementation example, can not only guarantee the stable smooth normal play of flow-medium performance on the portable terminal, can also improve the P2P data between nodes and share, save the bandwidth of content server, lower the cost of system deployment and operation.
Each embodiment all adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that same or analogous part cross-references gets final product between each embodiment.For device embodiment, because it is similar basically with method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The embodiment of the invention realizes that between portable terminal and PC the P2P of the content-data of flow-medium performance shares; Portable terminal need not to download from CDN the content-data of the low code check of this flow-medium performance again; Effectively utilize sharing of P2P to save Internet resources; Alleviate the bandwidth pressure of CDN, reduced system deployment and the operation cost of CDN.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.

Claims (10)

1. a mobile terminal streaming compensation data method is characterized in that, comprising:
Personal computer PC is sent first node to the node scheduling server and is obtained request message; Said first node obtains and comprises pc user's information and flow-medium performance sign ID in the request message, is used for the point-to-point download P2P nodal information that acquisition request content distributing network CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified;
Said PC receives said node scheduling server and first obtains response message to what said first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to said first, judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN;
If said first obtains and comprise the P2P nodal information in the response message, said PC downloads the content-data and the storage of the low code check of said flow-medium performance according to said P2P nodal information from said P2P node; If said first obtains and do not comprise the P2P nodal information in the response message, the content server of said PC from said CDN downloaded the content-data and the storage of the low code check of said flow-medium performance;
Said PC reports first-class media program to share message to said node scheduling server, and said first-class media program is shared and comprised said pc user's information, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server increases by first and shares list item in program shared state table; Said first shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the low code check sign, so that the content-data of the low code check of said flow-medium performance is downloaded at the subsequent movement terminal from said PC.
2. method according to claim 1 is characterized in that, said PC also comprised before node scheduling server transmission first node obtains request message:
Said PC sends Section Point to said node scheduling server and obtains request message; From said CDN, obtain content-data and decompress(ion), the broadcast of the high code check of flow-medium performance that said flow-medium performance ID identified; And reporting second flow-medium performance to share message to said node scheduling server, said second flow-medium performance is shared and is comprised in the message that said pc user's information, said flow-medium performance ID identify with high code check;
Said node scheduling server increases by second and shares list item in program shared state table; Said second shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the high code check sign, so that follow-up other PC downloads the content-data of the high code check of said flow-medium performance from said PC.
3. method according to claim 2 is characterized in that, said PC transmission first node obtains request message and comprises:
When there is not buffering in said PC at the content-data of the high code check of the said flow-medium performance of player plays, sends first node to said node scheduling server and obtain request message.
4. according to any described method of claim 1 to 3, it is characterized in that said portable terminal comprises from the content-data that said PC downloads the low code check of said flow-medium performance:
Said portable terminal sends the 3rd node to the node scheduling server and obtains request message; Said the 3rd node obtains and comprises mobile phone users ID and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified;
What said portable terminal received that said node scheduling server returns the 3rd obtains response message; And obtain whether comprise the P2P nodal information in the response message according to the said the 3rd; Judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN, said P2P node comprises PC and portable terminal;
If the said the 3rd obtains and comprise the P2P nodal information in the response message, said portable terminal is downloaded the content-data of the low code check of said flow-medium performance and is carried out decompress(ion), broadcast from said P2P node according to said P2P nodal information;
If the said the 3rd obtains and do not comprise the P2P nodal information in the response message, the content server of said portable terminal from said CDN downloaded the content-data of the low code check of said flow-medium performance and carried out decompress(ion), broadcast.
5. method according to claim 4 is characterized in that, also comprises:
Said portable terminal reports the 3rd flow-medium performance to share message to said node scheduling server, and said the 3rd flow-medium performance is shared and comprised said mobile phone users ID, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server increases the 3rd and shares list item in program shared state table; The said the 3rd shares list item comprises the correspondence relationship information between mobile phone users ID, said flow-medium performance ID and the low code check sign, so that follow-up other portable terminal is downloaded the content-data of the low code check of said flow-medium performance from said portable terminal.
6. a mobile terminal streaming compensation data system is characterized in that, comprises PC and node scheduling server;
Said PC; Be used for sending first node and obtain request message to the node scheduling server; Said first node obtains and comprises pc user's information and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified; Receive said node scheduling server and first obtain response message to what said first node obtained that request message returns; And obtain whether comprise the P2P nodal information in the response message according to said first, judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN; If said first obtains and comprise the P2P nodal information in the response message,, download the content-data and the storage of the low code check of said flow-medium performance from said P2P node according to said P2P nodal information; If said first obtains and do not comprise the P2P nodal information in the response message, the content server from said CDN is downloaded the content-data and the storage of the low code check of said flow-medium performance; Report first-class media program to share message to said node scheduling server, said first-class media program is shared and is comprised said pc user's information, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server is used to receive said first node and obtains request message, whether has first sharing table that comprises said flow-medium performance ID and low code check sign in the inquiry program shared state table, and returns first to said PC and obtain response message; If there is first sharing table comprise said flow-medium performance ID and low code check sign, said first obtains and comprises in the response message that said flow-medium performance ID and low code check identify corresponding P2P nodal information; And receive said first-class media program and share message; In program shared state table, increase by first and share list item; Said first shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the low code check sign, so that the content-data of the low code check of said flow-medium performance is downloaded at the subsequent movement terminal from said PC.
7. system according to claim 6; It is characterized in that; Said PC also was used for before obtaining request message to node scheduling server transmission first node; Send Section Point to said node scheduling server and obtain request message; From said CDN, obtain content-data and decompress(ion), the broadcast of the high code check of flow-medium performance that said flow-medium performance ID identified, and report second flow-medium performance to share message to said node scheduling server, said second flow-medium performance is shared and is comprised in the message that said pc user's information, said flow-medium performance ID identify with high code check;
Said node scheduling server also is used to receive said second flow-medium performance and shares message; In program shared state table, increase by second and share list item; Said second shares list item comprises the correspondence relationship information between pc user's information, said flow-medium performance ID and the high code check sign, so that follow-up other PC downloads the content-data of the high code check of said flow-medium performance from said PC.
8. system according to claim 7; It is characterized in that; Said PC specifically passes through the player decompress(ion), plays the content-data of the high code check of said flow-medium performance; When there is not buffering in the content-data of the high code check of the said flow-medium performance of player plays, sends first node to said node scheduling server and obtain request message.
9. according to any described system of claim 5 to 8; It is characterized in that; Also comprise portable terminal; Be used for sending the 3rd node to said node scheduling server and obtain request message, said the 3rd node obtains and comprises mobile phone users ID and flow-medium performance ID in the request message, is used for the P2P nodal information that acquisition request CDN has the content-data of the low code check of flow-medium performance that said flow-medium performance ID identified; What receive that said node scheduling server returns the 3rd obtains response message; And obtain whether comprise the P2P nodal information in the response message according to the said the 3rd; Judge the content-data that whether has the P2P node to store the low code check of said flow-medium performance among the said CDN, said P2P node comprises PC and portable terminal; If the said the 3rd obtains and comprise the P2P nodal information in the response message,, download the content-data of the low code check of said flow-medium performance and carry out decompress(ion), broadcast from said P2P node according to said P2P nodal information; If the said the 3rd obtains and do not comprise the P2P nodal information in the response message, the content server from said CDN is downloaded the content-data of the low code check of said flow-medium performance and is carried out decompress(ion), broadcast; Report the 3rd flow-medium performance to share message to said node scheduling server, said the 3rd flow-medium performance is shared and is comprised said mobile phone users ID, said flow-medium performance ID and low code check sign in the message;
Said node scheduling server also is used to receive said the 3rd flow-medium performance and shares message; In program shared state table, increase the 3rd and share list item; The said the 3rd shares list item comprises the correspondence relationship information between mobile phone users ID, said flow-medium performance ID and the low code check sign, so that follow-up other portable terminal is downloaded the content-data of the low code check of said flow-medium performance from said portable terminal.
10. content distributing network comprises it is characterized in that the content server of the content-data of high code check of stored stream media program and low code check, also comprises any described mobile terminal streaming compensation data system of claim 5 to 8.
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