CN102546549B - Method, system and device for data transmission - Google Patents
Method, system and device for data transmission Download PDFInfo
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Abstract
The invention provides a method, a system and a device for data transmission, which include that a content server (CS) deployed in a virtual platform is replaced with signaling server computer system simulation (CSS) and data server computerized standard data (CSD), and separation of signaling processing and a data transmission function of the CS is achieved. By means of a method that when the CSS deployed in the virtual platform receives signals, the CSD which is not deployed in the virtual platform is instructed to finish the data transmission, the problem that translation time of a virtual machine is prolonged caused by the fact that the data transmission function in the CS covers a large amount of network bandwidth and the problem that a large amount of downloaded data are lost when a large amount of network data pass through the CS are solved. Simultaneously, the problems of increasing burden of a virtual layer, probability of system error and network delay caused by the fact that during a process when users download data from the CS and the CS updates resource, data transmission needs to pass through the virtual layer are solved.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of data transmission method, system and equipment.
Background technology
Streaming Media refers to the continuous real-time media using streaming manner in a network, as the multimedia file such as video, audio frequency.Streaming manner is compressed through special mode by whole multimedia file to be divided into compressed package one by one, continuous to client by video server, real-time transmission.
Current stream media system is mainly divided into server/customer end (client/server, C/S) pattern and point-to-point (Peer-to-Peer, P2P) pattern, and C/S mode refers to that all streaming media resources all obtain from streaming media server.P2P pattern refers to and utilizes each client node in P2P network to be resource acquisition person, is also the characteristic of resource provider simultaneously, realizes from client node download media resource, thus alleviate the burden of media server.
No matter be C/S mode or P2P pattern, all need media server in stream media system, media server stores a large amount of content source, and the request of customer in response end, send media resource to client.Because the video data volume in streaming media service is comparatively large, the hard disk of media server itself is difficult to satisfy the demands, and therefore, in existing stream media system, video data is left in special backstage storage system, and general, this backstage storage system is disk array.As shown in Figure 1, for adopting the structural representation of the stream media system of P2P pattern, the streaming media resource that in Fig. 1, Resource TOC index server (Tracker) comprises for recording each node in this stream media system (comprising client and media server), according to the streaming media resource comprised in each node, produce the list information (resource indexing information including the node of same flow media resource, Peerlist), instruction client is from the node downloaded resources of streaming media resource comprising these client needs, content server (Content Server, CS) be media server, disk array is for storing the video data in CS, content source server (Source Server, SS) content newly issued is pushed to CS by primary responsibility, port (portal) server is used for intuitively representing streaming media resource to user, user selects the streaming media resource needing to download by client logs portal server, obtain the mark of this streaming media resource.
Client flow process of downloaded resources from CS in the stream media system of P2P pattern is adopted mainly to comprise the following steps:
The first step, user select by client logs portal server the streaming media resource needing download, and portal server returns the mark of this resource to client.
Second step, client send download request to Tracker, and carry the mark that client needs the resource downloaded in described request, Tracker returns the Peerlist of the resource including this mark correspondence to this client.
The Peer list that 3rd step, client return according to Tracker, to the content server request downloaded resources in Peer list.
4th step, content server read the resource of client-requested download by private network (local area network (LAN) as shown in Figure 1) from disk array.
5th step, content server by public network by read resource forwarding to client.
The flow process that in the stream media system of P2P pattern, SS pushes resource to CS is adopted mainly to comprise the following steps:
The first step, SS send to CS the request of propelling movement, carry propelling movement resource identification in described request.
Second step, content server obtain from SS and push resource corresponding to resource identification.
3rd step, content server by private network (local area network (LAN) as shown in Figure 1) by the resource conservation that obtains from SS to disk array.
Distributed business network (Distributed Service Network, DSN) stream media system adopts P2P pattern, and in the design of DSN stream media system, CS is deployed in virtual platform, be illustrated in figure 2 the structural representation of DSN stream media system, thus utilize virtualized characteristic, reach following effect:
The first, CS can with other operation system network elements altogether physical platform, other operation systems refer to have from stream media system to the different occupancy mode of resource or and stream media system there is the system of different user models, thus reach the effect of server polymerization.
The second, distribute to the virtual resource of CS according to the visit capacity dynamic conditioning of different CS, to prevent the redundancy of physical resource, realize physical resource reasonable distribution.
Three, CS lower for multiple resources occupation rate is aggregated in identical virtual machine, and closes idle physical machine, to reach the effect of energy-saving and emission-reduction.
Following problem is there is in DSN stream media system as shown in Figure 2:
1, CS server is except the download server as client, for client provides outside download service, also need to perform following functions: streaming medium content obtains and process, Bitmap (resource message bit pattern) is mutual to be deleted with management, streaming medium content and reports.
CS in DSN stream media system is deployed in virtual platform, the function providing download service to belong to data plane for client due to CS and take a large amount of network bandwidths, therefore, when carrying out virtual machine (vm) migration, have a large amount of network-cachings and relevant internal memory between source virtual machine to target virtual machine synchronous, the elongation of virtual machine (vm) migration time can be caused.
Simultaneously, in the process of virtual machine (vm) migration, have of short duration virtual machine and work as machine, when having a large amount of network data through CS, a large amount of downloading datas can be lost, loss or the re-transmission of packet may being caused, when only having a CS as loading source, client may be caused cannot to realize the complete download of resource.
In the process of 2, client downloaded resources from CS, because CS is in virtual platform, the resource transmission of CS and backstage storage system (disk array as in Fig. 2) and the resource transmission of CS and client, all need to pass through virtualization layer, add the burden of virtualization layer and the probability of system fault, add network delay simultaneously.
3, SS pushes to CS in the process of resource, because CS is in virtual platform, when the resource transmission of CS and SS and CS and backstage storage system (disk array as in Fig. 2) resource transmission, also need to pass through virtualization layer, therefore, when CS upgrades the resource of self preserving, also there is virtualization layer burden large, the probability of system fault is high, the problem that network delay is long.
Therefore, need badly and introduce a kind of virtual machine fast transferring that can realize CS place, and in the process of virtual machine (vm) migration, loss and the re-transmission of packet can not be caused, simultaneously the process of client from CS downloaded resources and CS more new resources, the processing load of virtualization layer can be reduced, reduce the data transmission method of network delay.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method, system and equipment, the transmission of signaling and data to be born for solving CS in prior art simultaneously, cause the virtual machine (vm) migration time at place long, that easily loss is a large amount of downloading data, and to virtualization layer be passed through during CS transmission data, virtualization layer is caused to be born large, the probability of system fault is high, the problem that network delay is long.
A kind of data transmission method, the method comprises:
The signal server CSS being deployed in virtual platform receives the download request of client transmission, carries mark and the client identification of data to be downloaded in described download request;
CSS sends to the data server CSD not being deployed in virtual platform and carries the described mark of data to be downloaded and the instruction of client identification, instruction CSD downloads the data of the mark correspondence of described data to be downloaded from memory device, and the data of download are sent to the client that described client identification is corresponding.
A kind of data transmission method, the method comprises:
The signal server CSS being deployed in virtual platform receives the update request of content source server SS transmission, carries the mark of data to be updated in described update request;
CSS sends to the data server CSD not being deployed in virtual platform the instruction carrying the mark of described data to be updated, and instruction CSD obtains the data of the mark correspondence of data to be updated described in SS, and the data of acquisition are stored to memory device.
A kind of data transmission system, this system comprises the signal server CSS being deployed in virtual platform and the data server CSD not being deployed in virtual platform, wherein:
Described CSS, for receiving the download request that client sends, carries mark and the client identification of data to be downloaded in described download request, and carries the described mark of data to be downloaded and the instruction of client identification to described CSD transmission;
Described CSD, for according to the instruction received, downloads the data of the mark correspondence of described data to be downloaded, and the data of download is sent to the client that described client identification is corresponding from memory device.
A kind of signal server, described signal server is deployed in virtual platform, and described signal server comprises:
Receiver module, for receiving the download request that client sends, carries mark and the client identification of data to be downloaded in described download request;
Sending module, the described mark of data to be downloaded and the instruction of client identification is carried for sending to the data server CSD not being deployed in virtual platform, instruction CSD downloads the data of the mark correspondence of described data to be downloaded from memory device, and the data of download are sent to the client that described client identification is corresponding.
A kind of data server, described data server is not deployed in virtual platform, and described data server comprises:
Receiver module, what be deployed on the signal server CSS transmission of virtual platform for acceptance division carries the described mark of data to be downloaded and the instruction of client identification;
Download module, for downloading the data of the mark correspondence of described data to be downloaded from memory device;
Sending module, for sending to the data of download the client that described client identification is corresponding.
A kind of data transmission system, this system comprises the signal server CSS being deployed in virtual platform and the data server CSD not being deployed in virtual platform, wherein:
Described CSS, for receiving the update request that content source server SS sends, carries the mark of data to be updated, and sends the instruction carrying the mark of described data to be updated to CSD in described update request;
Described CSD, for according to the instruction received, obtains the data of the mark correspondence of described data to be updated, and the data of acquisition is stored to memory device from SS.
A kind of signal server, described signal server is deployed in virtual platform, and this signal server comprises:
Receiver module, for receiving the update request that content source server SS sends, carries the mark of data to be updated in described update request;
Sending module, for sending to the data server CSD not being deployed in virtual platform the instruction carrying the mark of described data to be updated, instruction CSD obtains the data of the mark correspondence of described data to be updated from SS, and the data of acquisition are stored to memory device.
A kind of data server, described data server is not deployed in virtual platform, and described data server comprises:
Receiver module, is deployed on the instruction carrying the mark of described data to be updated of the signal server CSS transmission of virtual platform for acceptance division;
Data acquisition module, for obtaining the data of the mark correspondence of described data to be updated from content source server SS;
Sending module, for being stored to memory device by the data of acquisition.
In scheme provided by the invention, the former function being deployed in the content server CS of virtual platform is replaced by the signal server CSS being deployed in virtual platform and the data server CSD that is not deployed in virtual platform, by the signaling process of CS and being separated of data-transformation facility, solve because the data-transformation facility in CS takies a large amount of network bandwidths, cause the elongation of virtual machine (vm) migration time and have a large amount of network data through CS, lose the problem that downloading data is serious, simultaneously, the scheme of the embodiment of the present invention carries out transfer of data by the CSD not being deployed in virtual platform, make transfer of data without the need to passing through virtual level, overcome the problem that the burden probability that is heavy and system fault of virtualization layer is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stream media system adopting P2P pattern in prior art;
Fig. 2 is the structural representation of DSN stream media system in prior art;
The schematic flow sheet of a kind of data transmission method that Fig. 3 provides for the embodiment of the present invention one;
The schematic flow sheet of a kind of data transmission method that Fig. 4 provides for the embodiment of the present invention two;
The schematic flow sheet of a kind of data transmission method that Fig. 5 provides for the embodiment of the present invention three;
The schematic flow sheet of a kind of data transmission method that Fig. 6 provides for the embodiment of the present invention four;
The schematic flow sheet of a kind of data transmission method that Fig. 7 provides for the embodiment of the present invention five;
The schematic flow sheet of a kind of data transmission method that Fig. 8 provides for the embodiment of the present invention six;
The structural representation of a kind of data transmission system that Fig. 9 provides for the embodiment of the present invention seven;
The structural representation of a kind of signal server that Figure 10 provides for the embodiment of the present invention eight;
The structural representation of a kind of data server that Figure 11 provides for the embodiment of the present invention nine;
The structural representation of a kind of data transmission system that Figure 12 provides for the embodiment of the present invention ten;
The structural representation of a kind of signal server that Figure 13 provides for the embodiment of the present invention 11;
The structural representation of a kind of data server that Figure 14 provides for the embodiment of the present invention 12.
Embodiment
Below by Figure of description and each embodiment, technical solution of the present invention is described in detail.
In technical solution of the present invention, there is while being deployed in virtual platform signaling process and data-transformation facility CS server replaced by the signal server (CSS) with signaling processing capacity being deployed in virtual platform and the data server (CSD) with data-transformation facility that is not deployed in virtual platform, thus by the data-transformation facility of CS is separated from virtual platform, thus solve the CS that is deployed in virtual platform for client and provide downloaded resources and CS to upgrade in the process of own resource, transfer of data takies a large amount of network bandwidth, cause the growth of virtual machine (vm) migration time and a large amount of network data through CS, due to the loss of data that virtual machine causes when machine, the process need simultaneously solving CS transmission data passes through virtual level, increase the burden of virtualization layer and the probability of system fault, increase the technical problem of network delay.
Embodiment one,
Be illustrated in figure 3 the schematic flow sheet of a kind of data transmission method that the embodiment of the present invention one provides, the method mainly comprises the following steps:
Step 101, signal server CSS receive the download request that client sends.
The signal server CSS being deployed in virtual platform receives the download request of client transmission, carries mark and the client identification of data to be downloaded in described download request.
Step 102, CSS send download instruction to data server CSD.
CSS sends download instruction to the data server CSD not being deployed in virtual platform, carries mark and the client identification of described data to be downloaded in described instruction.
Step 103, CSD downloading data from memory device.
CSD from arbitrary corresponding with the mark of searching described data to be downloaded the memory device that self connects data, and can download these data from the memory device with these data.
Preferably, the time of the memory device of the data of the mark correspondence with described data to be downloaded is searched in order to save CSD, can also carry the mark of the memory device of self correspondence in the instruction that CSS sends to CSD, instruction CSD downloads the data of the mark correspondence of described data to be downloaded from the memory device of the mark correspondence of described memory device.
The data of download are sent to client by step 104, CSD.
The data downloading acquisition are in step 103 sent to client corresponding to the client identification that carries in instruction by CSD.
Preferably, transparent to client is separated in order to realize CS function, the mark of CSS can also be carried in the instruction that CSS sends to CSD, during the client that the data of the mark correspondence of described data to be downloaded send to described client identification corresponding by instruction CSD, the mark of described CSS is sent source mark as data.
Before step 101, described method also comprises step 101 ':
Step 101 ', CSS determines self to preserve the data that client-requested is downloaded.
The Resources list that CSS preserves according to self, determine that the data of the mark correspondence of described data to be downloaded preserved by the memory device of self correspondence, in described the Resources list, preserve the information of the data (streaming media resource) of preserving in memory device corresponding to CSS.
Downloaded resources scheme is provided to be described in detail to the CS after the function that the embodiment of the present invention one provides is separated to client below by two concrete examples.
Embodiment two,
The embodiment of the present invention two provides a kind of data transmission method, and the flow chart of steps of the method as shown in Figure 4, specifically comprises the following steps:
Step 201, obtain the mark of data to be downloaded.
User, at needs download stream media data, during as film, logs in Portal server by client UE1, and select the stream medium data needing to download, Portal server returns the mark of these data to UE1.
Step 202, UE1 send data download request to Tracker.
Carry the mark of data to be downloaded in described download request, Tracker returns the Peer list of the data including this mark correspondence to UE1.
It is mutual that CSS1 in step 203, UE1 and Peer list carries out bitmap.
Multiple CS and multiple other clients (UE2 may be included in the Peer list that Tracker returns to UE1, UE3......), the embodiment of the present invention pays close attention to the method for client downloading data from CS, therefore, is described for UE1 downloading data from CS1.
Because CS1 is divided into the signal server CSS1 being deployed in virtual platform and the data server CSD1 not being deployed in virtual platform, therefore, the bitmap reciprocal process of UE1 and CS1 is actual is the bitmap reciprocal process of UE1 and CSS1.
Step 204, UE1 send burst download request to CSS1.
After the bitmap of UE1 and CSS1 completes alternately, determine the data of the mark correspondence of preserving described data to be downloaded in the memory device that CSS1 is corresponding, send burst download request to CSS1, this request comprises the mark of burst to be downloaded and the IP address of UE1 and port numbers.
Step 205, CSS1 return response message to UE1, and send download instruction to CSD1.
IP address and the port numbers of CSS1 is carried in the response message that CSS1 returns to UE1.
And, CSS1 sends download instruction to CSD1, the mark of burst to be downloaded, the IP address of the IP address of UE1 and port numbers and CSS1 and port numbers is carried in this instruction, instruction CSD1 downloads the burst of the mark correspondence of burst to be downloaded from memory device, and the burst of download is sent to IP address and the port numbers of UE1, when sending burst to UE1, source address adopts the IP address of CSS1 and port numbers, thus realize that CS1 function is separated UE1 transparent.
Preferably, in described instruction, also carry the mark of memory device, be used to indicate the burst that CSD1 downloads the mark correspondence of burst to be downloaded from the memory device of the mark correspondence of memory device.
Step 206, CSD1 are to CSS1 return data end-of-transmission message.
CSD1 completes after the transfer of data of UE1, to CSS1 return data end-of-transmission message.
Realize in the process of transfer of data at CSD1, also can maintain keep-alive information at any time and between CSS1, make CSS1 can understand the situation of transfer of data in CSD at any time, ensure that the data transmitted in CSD1 are not lost.
Embodiment three,
The embodiment of the present invention three provides a kind of data transmission method, and the flow chart of steps of the method as shown in Figure 5, specifically comprises the following steps:
Step 301 in the present embodiment ~ step 304 is identical with the step 201 ~ step 204 in embodiment two, does not repeat them here.
Step 305, CSS1 return response message to UE1.
Carry IP address and the port numbers of CSD1 in this response message, notify UE1 by CSD1 for it provides data.
Step 306, UE1 return negotiation success message to CSS1.
UE1 returns negotiation success message to CSS1, and confirmation can by CSD1 for it provides data.
Step 307, CSS1 send download instruction to CSD1.
CSS1 is after receiving the negotiation success message that UE1 returns, download instruction is sent to CSD1, the mark of burst to be downloaded and the IP address of UE1 and port numbers is carried in this instruction, instruction CSD1 downloads the burst of the mark correspondence of burst to be downloaded from memory device, and the burst of download is sent to IP address and the port numbers of UE1.
Preferably, in described instruction, also carry the mark of memory device, be used to indicate the burst that CSD1 downloads the mark correspondence of burst to be downloaded from the memory device of the mark correspondence of memory device.
Step 308, CSD1 are to CSS1 return data end-of-transmission message.
CSD1 completes after the transfer of data of UE1, to CSS1 return data end-of-transmission message.
In the process of CSD1 transfer of data, also can maintain keep-alive information at any time and between CSS1, make CSS1 can understand the situation of transfer of data in CSD1 at any time, ensure that the data transmitted in CSD1 are not lost.
In the scheme that the embodiment of the present invention one to embodiment three provides, in the process of client downloading data from CS, by CS being divided into the signal server CSS with signaling processing capacity and the data server CSD with data-transformation facility not being deployed in virtual platform that are deployed in virtual platform, solve CS and take a large amount of network bandwidth, cause the growth of virtual machine (vm) migration time and a large amount of network data through CS, due to the loss of data that virtual machine causes when machine, also solve CS to need to pass through virtual level for client provides in the process of downloading data simultaneously, increase the burden of virtualization layer and the probability of system fault, increase the technical problem of network delay.
Further, be in the process of clients providing data at CS, the mark of memory device in the download instruction that CSS sends to CSD, can be carried, saved the time that CSD searches the memory device with resource corresponding to described resources to be downloaded mark; The mark of CSS can also be carried in download instruction, during the client that resource corresponding for described resources to be downloaded mark sends to described client identification corresponding by instruction CSD, the mark of described CSS is sent source mark as resource, realizes CS function and be separated transparent to client.
Embodiment four,
Be illustrated in figure 6 the schematic flow sheet of a kind of data transmission method that the embodiment of the present invention four provides, the method mainly comprises the following steps:
Step 401, signal server CSS receive the update request that content source server SS sends.
The signal server CSS being deployed in virtual platform receives the update request of content source server SS transmission, carries the mark of data to be updated in described update request.
Step 402, CSS send data acquisition instruction to data server CSD.
CSS sends data acquisition instruction to the data server CSD not being deployed in virtual platform, carries the mark of described data to be updated in described instruction.
Step 403, CSD obtain data from SS.
CSD from arbitrary corresponding with the mark of searching described data to be updated the SS that self connects data, and can obtain these data from the SS with these data.
Preferably, the time of the SS of the data of the mark correspondence with described data to be updated is searched in order to save CSD, can also carry the mark of the SS sending update request to CSS in described instruction, instruction CSD obtains the data of the mark correspondence of described data to be updated from the SS of the mark correspondence of described SS.
The data of acquisition are stored to memory device by step 404, CSD.
Also carry the mark of memory device corresponding to described CSS in described instruction, the data of acquisition are stored to the memory device of the mark correspondence of described memory device by instruction CSD.
Below by two concrete examples, the scheme that the CS after the function that the embodiment of the present invention four provides is separated upgrades the resource of self storage is described in detail.
Embodiment five,
The embodiment of the present invention five provides a kind of data transmission method, and the flow chart of steps of the method as shown in Figure 7, specifically comprises the following steps:
Step 501, SS send update request to CSS.
When having new stream medium data to need to issue in SS, SS sends update request to CSS, carries the mark of data to be updated in described update request.
Step 502, CSS return response message to SS.
CSS returns response message to SS, notice SS by by CSD corresponding to CSS from its downloading data.
Step 503, CSS send download instruction to CSD.
Carry the mark of described data to be updated in described instruction, the mark of the memory device of CSS self correspondence can also be carried.
Preferably, the mark of SS in described instruction, can also be carried, be used to indicate the data that CSD downloads the mark correspondence of data to be updated from the SS of this mark correspondence.
Step 504, CSD downloading data.
CSD from arbitrary corresponding with the mark of searching described data to be updated the SS that self connects data, and can download these data from the SS with these data.
Preferably, searching the time of the SS of the data of the mark correspondence with described data to be updated to save CSD, according to the mark of the SS carried in instruction, the data of the mark correspondence of described data to be updated can be downloaded from the SS of the mark correspondence of described SS.
The data of download are sent to memory device by step 505, CSD.
The data downloading acquisition are in step 504 sent to the memory device of the mark correspondence of memory device by CSD.
Step 506, CSD are to CSS return data end-of-transmission message.
CSD completes the download of data to be updated and after these data are saved to memory device corresponding to CSS, notice CSS DTD.
In the process of CSD transfer of data, also can maintain keep-alive information at any time and between CSS, make CSS can understand the situation of transfer of data in CSD at any time, ensure that the data transmitted in CSD are not lost.
The data message that step 507, CSS report self to store to Tracter.
CSS, after the DTD message receiving CSD transmission, upgrades the Resources list self stored, and the data message that after reporting renewal to Tracter, self stores, to ensure the information of the storage data of preserving in Tracter in correct CSS.
Embodiment six,
The embodiment of the present invention six provides a kind of data transmission method, and the flow chart of steps of the method as shown in Figure 8, specifically comprises the following steps:
Step 601, SS send update request to CSS.
When having new stream medium data to need to issue in SS, SS sends update request to CSS, carries the mark of data to be updated in described update request.
Step 602, CSS are to CSD transmission and reception instruction.
Carry the mark of described data to be updated in described instruction, the mark of the memory device of CSS self correspondence can also be carried.
Preferably, the mark of SS in described instruction, can also be carried, be used to indicate the data that CSD receives the mark correspondence of the data to be updated pushed from the SS of this mark correspondence.
Step 603, CSS return response message to SS.
CSS returns response message to SS, and the CSD corresponding by CSS is received its data pushed by notice SS.
Step 604, CSD receive data.
CSD can receive arbitrary corresponding with the mark of the data described to be updated that the SS that self connects pushes data.
Preferably, CSD can according to the mark of the SS carried in instruction, the data of the mark correspondence of the data described to be updated that the SS receiving the mark correspondence of described SS pushes.
The data received are sent to memory device by step 605, CSD.
The data received in step 604 are sent to the memory device of the mark correspondence of memory device by CSD.
Step 606 ~ step 607 is identical with the step 506 ~ step 507 in embodiment five, does not repeat them here.
By the scheme that the embodiment of the present invention four to embodiment six provides, in the process of CS more new resources, while the technical problem solving the present invention's proposition, CSD not only can be utilized initiatively from SS, to download data to be updated, the data that CSD passive reception SS pushes can also be utilized, improve the flexibility of CS resource updates, the mark of SS can be carried in the instruction that CSS sends to CSD, the instruction CSD resource that downloaded resources or reception specify SS to push from the SS specified, has saved CSD and has searched the time with SS corresponding to described resource identification to be updated.
Embodiment seven,
The embodiment of the present invention seven provides a kind of data transmission system, the structural representation of this system as shown in Figure 9, this system comprises the signal server (CSS) 11 being deployed in virtual platform and the data server (CSD) 12 not being deployed in virtual platform, wherein:
Described CSS, for receiving the download request that client sends, carries mark and the client identification of data to be downloaded in described download request, and carries the described mark of data to be downloaded and the instruction of client identification to described CSD transmission; Described CSD, for according to the instruction received, downloads the data of the mark correspondence of described data to be downloaded, and the data of download is sent to the client that described client identification is corresponding from memory device.
Described CSS, the Resources list also for preserving according to self, determines that the data of the mark correspondence of described data to be downloaded preserved by the memory device of self correspondence.
Described CSS, also for carrying the mark of the memory device of self correspondence in the instruction sent to CSD; Described CSD, specifically for downloading data in the memory device of the mark correspondence of memory device that carries from described instruction.
Described CSS, also for carrying the mark of CSS in the instruction sent to CSD; Described CSD, specifically for send to described client identification corresponding the data of download client time, the mark of CSS of carrying in described instruction is sent source mark as data.
Embodiment eight,
The embodiment of the present invention eight provides a kind of signal server, and this signal server is deployed in virtual platform, and as shown in Figure 10, this signal server comprises receiver module 21 and sending module 22 to the structural representation of this signal server, wherein:
The download request that receiver module 21 sends for receiving client, carries mark and the client identification of data to be downloaded in described download request; Sending module 22 carries the described mark of data to be downloaded and the instruction of client identification for sending to the data server CSD not being deployed in virtual platform, instruction CSD downloads the data of the mark correspondence of described data to be downloaded from memory device, and the data of download are sent to the client that described client identification is corresponding.
Described signal server also comprises resource determination module 23:
Resource determination module 23 the Resources list for preserving according to self, determines that the data of the mark correspondence of described data to be downloaded preserved by the memory device of self correspondence.
Described sending module 22 also for carrying the mark of memory device corresponding to CSS in the instruction sent to CSD, downloading data in the memory device of the mark correspondence of memory device that instruction CSD carries from described instruction.
The mark of the CSS carried in described instruction, also for carrying the mark of CSS in the instruction sent to CSD, during the client that the data of download send to described client identification corresponding by instruction CSD, is sent source mark as data by described sending module 22.
State-maintenance module 24 is also comprised in described signal server:
Described state-maintenance module 24 is for preserving the information of the data (streaming media resource) of the preservation of described signal server in the memory device of correspondence, and carry out Signalling exchange with data server, guarantee the up-to-date information of preserving data server in signal server all the time.
Embodiment nine,
The embodiment of the present invention nine provides a kind of data server, and this data server is not deployed in virtual platform, and as shown in figure 11, this data server comprises receiver module 31, download module 32 and sending module 33 to the structural representation of this data server, wherein:
Receiver module 31 for acceptance division be deployed on virtual platform signal server CSS send carry the described mark of data to be downloaded and the instruction of client identification; Download module 32 for downloading the data of the mark correspondence of described data to be downloaded from memory device; Sending module 33 is for sending to the data of download the client that described client identification is corresponding.
Described download module 32 specifically for the mark according to the memory device carried in instruction, downloading data from the memory device of the mark correspondence of described memory device.
The mark of described CSS, specifically for the mark according to the CSS carried in instruction, during the client sending to described client identification corresponding the data of download, is sent source mark as data by described download module 32.
Described data server also comprises state-maintenance module 34:
Described state-maintenance module 34 is for sending in the process of the data downloaded to client, Signalling exchange is carried out with signal server, guarantee that signal server can understand the situation of transfer of data in data server at any time, guarantee the up-to-date information of preserving data server in signal server all the time.
Embodiment ten,
The embodiment of the present invention ten provides a kind of data transmission system, the structural representation of this system as shown in figure 12, this system comprises the signal server (CSS) 41 being deployed in virtual platform and the data server (CSD) 42 not being deployed in virtual platform, wherein:
Described CSS, for receiving the update request that content source server SS sends, carries the mark of data to be updated, and sends the instruction carrying the mark of described data to be updated to CSD in described update request; Described CSD, for according to the instruction received, obtains the data of the mark correspondence of described data to be updated, and the data of acquisition is stored to memory device from SS.
Described CSS, also for carrying the mark of memory device corresponding to CSS in the instruction sent to CSD; Described CSD, specifically for being stored to the memory device of the mark correspondence of the memory device carried in described instruction by the data of acquisition.
Described CSS, also for carrying the mark of SS in the instruction sent to CSD; Described CSD, obtains data specifically in the SS of the mark correspondence of SS that carries from described instruction.
Embodiment 11,
The embodiment of the present invention 11 provides a kind of signal server, and this signal server is deployed in virtual platform, and as shown in figure 13, this signal server comprises receiver module 51 and sending module 52 to the structural representation of this signal server, wherein:
The update request that receiver module 51 sends for receiving content source server SS, carries the mark of data to be updated in described update request; Sending module 52 is for sending to the data server CSD not being deployed in virtual platform the instruction carrying the mark of described data to be updated, instruction CSD obtains the data of the mark correspondence of described data to be updated from SS, and the data of acquisition are stored to memory device.
Described sending module 52 also for carrying the mark of memory device corresponding to CSS in the instruction sent to CSD, and the data of acquisition are stored to the memory device of the mark correspondence of the memory device carried in described instruction by instruction CSD.
Described sending module 52, also for carrying the mark of SS in the instruction sent to CSD, obtains data in the SS of the mark correspondence of the SS that instruction CSD carries from described instruction.
State-maintenance module 53 is also comprised in described signal server:
The DTD message of described state-maintenance module 53 for reporting according to data server, upgrade the information of the data (streaming media resource) of the preservation of described signal server in the memory device of correspondence, and carry out Signalling exchange with data server, guarantee the up-to-date information of preserving data server in signal server all the time.
Embodiment 12,
The embodiment of the present invention 12 provides a kind of data server, this data server is not deployed in virtual platform, as shown in figure 14, this data server comprises receiver module 61, data acquisition module 62 and sending module 63 to the structural representation of this data server, wherein:
The instruction carrying the mark of described data to be updated that the signal server CSS that receiver module 61 is deployed on virtual platform for acceptance division sends; Data acquisition module 62 for obtaining the data of the mark correspondence of described data to be updated from content source server SS; Sending module 63 is for being stored to memory device by the data of acquisition.
The data of acquisition, specifically for the mark according to the memory device carried in instruction, are stored to the memory device of the mark correspondence of described memory device by described data acquisition module 62.
Described data acquisition module 62, specifically for the mark according to the SS carried in instruction, obtains data from the SS of the mark correspondence of described SS.
Described data server also comprises state-maintenance module 64:
Described state-maintenance module 64 is for sending in the process of the data downloaded to client, Signalling exchange is carried out with signal server, guarantee that signal server can understand the situation of transfer of data in data server at any time, guarantee the up-to-date information of preserving data server in signal server all the time.
Signal server in the embodiment of the present invention eight and embodiment 11 can be two independently equipment, also can by the function i ntegration of the signal server in embodiment eight and embodiment 11 within one device, equally, data server in the embodiment of the present invention nine and embodiment 12 can be two independently equipment, also can by the function i ntegration of the data server in embodiment nine and embodiment 12 within one device.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (14)
1. a data transmission method, is characterized in that, the method comprises:
The signal server CSS being deployed in virtual platform receives the download request of client transmission, carries mark and the client identification of data to be downloaded in described download request;
CSS sends to the data server CSD not being deployed in virtual platform and carries the described mark of data to be downloaded and the instruction of client identification, the mark of memory device corresponding to CSS is also carried in described instruction, download the data of the mark correspondence of described data to be downloaded in the memory device of the mark correspondence of the memory device that instruction CSD carries from described instruction, and the data of download are sent to the client that described client identification is corresponding.
2. the method for claim 1, is characterized in that, before CSS receives download request, described method also comprises:
The Resources list that CSS preserves according to self, determines that the data of the mark correspondence of described data to be downloaded preserved by the memory device of self correspondence.
3. the method for claim 1, is characterized in that, the data of download are sent to the client that described client identification is corresponding by instruction CSD, comprising:
Also carry the mark of CSS in described instruction, CSD is when the client sending to described client identification corresponding the data of download in instruction, and the mark of the CSS carried in described instruction is sent source mark as data.
4. a data transmission method, is characterized in that, the method comprises:
The signal server CSS being deployed in virtual platform receives the update request of content source server SS transmission, carries the mark of data to be updated in described update request;
CSS sends to the data server CSD not being deployed in virtual platform the instruction carrying the mark of described data to be updated, the mark of memory device corresponding to CSS is also carried in described instruction, instruction CSD obtains the data of the mark correspondence of data to be updated described in SS, and the data of acquisition is stored to the memory device of the mark correspondence of the memory device carried in described instruction.
5. method as claimed in claim 4, is characterized in that, instruction CSD obtains the data of the mark correspondence of data to be updated described in SS, comprising:
Also carry the mark of the SS sending update request to CSS in described instruction, in the SS of the mark correspondence of the SS that instruction CSD carries from described instruction, obtain data.
6. a data transmission system, is characterized in that, this system comprises the signal server CSS being deployed in virtual platform and the data server CSD not being deployed in virtual platform, wherein:
Described CSS, for receiving the download request that client sends, mark and the client identification of data to be downloaded is carried in described download request, and carry the described mark of data to be downloaded and the instruction of client identification to described CSD transmission, also carry the mark of memory device corresponding to CSS in described instruction;
Described CSD, for the instruction that basis receives, download the data of the mark correspondence of described data to be downloaded in the memory device of the mark correspondence of the memory device carried from described instruction, and the data of download are sent to the client that described client identification is corresponding.
7. system as claimed in claim 6, is characterized in that,
Described CSS, also for carrying the mark of CSS in the instruction sent to CSD;
Described CSD, specifically for send to described client identification corresponding the data of download client time, the mark of CSS of carrying in described instruction is sent source mark as data.
8. a signal server, this signal server is deployed in virtual platform, it is characterized in that, described signal server comprises:
Receiver module, for receiving the download request that client sends, carries mark and the client identification of data to be downloaded in described download request;
Sending module, the described mark of data to be downloaded and the instruction of client identification is carried for sending to the data server CSD not being deployed in virtual platform, the mark of memory device corresponding to CSS is also carried in described instruction, download the data of the mark correspondence of described data to be downloaded in the memory device of the mark correspondence of the memory device that instruction CSD carries from described instruction, and the data of download are sent to the client that described client identification is corresponding.
9. signal server as claimed in claim 8, is characterized in that,
Described sending module, also for carrying the mark of CSS in the instruction sent to CSD, during the client that the data of download send to described client identification corresponding by instruction CSD, sends source mark using the mark of the CSS carried in described instruction as data.
10. a data server, data server is not deployed in virtual platform, it is characterized in that, described data server comprises:
Receiver module, what be deployed on the signal server CSS transmission of virtual platform for acceptance division carries the described mark of data to be downloaded and the instruction of client identification, also carries the mark of memory device corresponding to CSS in described instruction;
Download module, for downloading the data of the mark correspondence of described data to be downloaded in the memory device of the mark correspondence of memory device that carries from described instruction;
Sending module, for sending to the data of download the client that described client identification is corresponding.
11. data servers as claimed in claim 10, is characterized in that,
Described download module, specifically for the mark according to the CSS carried in instruction, during the client sending to described client identification corresponding the data of download, sends source mark using the mark of described CSS as data.
12. 1 kinds of data transmission systems, is characterized in that, this system comprises the signal server CSS being deployed in virtual platform and the data server CSD not being deployed in virtual platform, wherein:
Described CSS, for receiving the update request that content source server SS sends, carry the mark of data to be updated in described update request, and send the instruction carrying the mark of described data to be updated to CSD, in described instruction, also carry the mark of memory device corresponding to CSS;
Described CSD, for according to the instruction received, obtains the data of the mark correspondence of described data to be updated, and the data of acquisition is stored to the memory device of the mark correspondence of the memory device carried in described instruction from SS.
13. 1 kinds of signal servers, this signal server is deployed in virtual platform, it is characterized in that, this signal server comprises:
Receiver module, for receiving the update request that content source server SS sends, carries the mark of data to be updated in described update request;
Sending module, for sending to the data server CSD not being deployed in virtual platform the instruction carrying the mark of described data to be updated, the mark of memory device corresponding to CSS is also carried in described instruction, instruction CSD obtains the data of the mark correspondence of described data to be updated from SS, and the data of acquisition is stored to the memory device of the mark correspondence of the memory device carried in described instruction.
14. 1 kinds of data servers, data server is not deployed in virtual platform, it is characterized in that, described data server comprises:
Receiver module, is deployed on the instruction carrying the mark of described data to be updated of the signal server CSS transmission of virtual platform, also carries the mark of memory device corresponding to CSS in described instruction for acceptance division;
Data acquisition module, for obtaining the data of the mark correspondence of described data to be updated from content source server SS;
Sending module, for being stored to the memory device of the mark correspondence of the memory device carried in described instruction by the data of acquisition.
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| CN101018318A (en) * | 2007-02-25 | 2007-08-15 | 华为技术有限公司 | A stream media system, signaling forward device and stream media transmission method |
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| CN1753502A (en) * | 2004-09-24 | 2006-03-29 | Lg电子株式会社 | System and method for providing advertisement music |
| CN101018318A (en) * | 2007-02-25 | 2007-08-15 | 华为技术有限公司 | A stream media system, signaling forward device and stream media transmission method |
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