CN103731487A - Download method, device, system and router for resource file - Google Patents
Download method, device, system and router for resource file Download PDFInfo
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Abstract
The invention belongs to the technical field of internet and provides a download method, device, system and router for a resource file. The download method is applied to a first router in communication connection with one or a plurality of second routers. The download method comprises the following steps of detecting a download request of a client side to the resource file in a server; dividing the resource file into a plurality of resource fragments; sending fragment information of one or a plurality of resource fragments to the second router to request the second router to download the corresponding resource segments in the resource file from the server; downloading the resource fragments from the second router and providing the downloaded resource fragments for the client side. According to the download method, device, system and router for the resource file, the download speed of the resource file can be increased.
Description
Technical Field
The present invention relates to the field of internet technologies, and in particular, to a method, an apparatus, a system, and a router for downloading a resource file.
Background
With the popularity of the internet, resources (e.g., music, pictures, videos, and software) in the internet are becoming more and more abundant. The user devices typically access the internet through a router (user access device) whose interface to the wide area network is referred to as the wide area network interface, commonly referred to as a WAN port. On one hand, since the exit bandwidth of the WAN port (wide area network bandwidth) is limited, and on the other hand, since many resource servers limit the resource downloading speed of each client, the speed of downloading resources from the internet is not ideal for users.
In order to increase the download speed of internet resources, a solution provided by the prior art is to increase the number of interfaces of the wan and increase the bandwidth by overlapping the bandwidth in a manner of dialing the wan on the same router. For example, the original router is connected with 1 4M ADSL line, and by adding 1 4M ADSL line and binding 2 lines together, 8M bandwidth can be achieved.
However, the above scheme for accelerating the downloading of the network resource will increase the cost of the user on one hand, and the acceleration effect is still not ideal on the other hand.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a system and a router for downloading a resource file, so as to improve the downloading speed of the resource file.
In order to achieve the purpose, the invention provides the following technical scheme:
a resource file downloading method is applied to a first router which is in communication connection with one or more second routers, and comprises the following steps:
detecting a downloading request of a client to a resource file in a server;
dividing the resource file into a plurality of resource segments;
sending segment information of one or more resource segments to the second router to request the second router to download corresponding resource segments in the resource file from the server;
and downloading the resource segments from the second router and providing the downloaded resource segments to the client.
The downloading method further includes: acquiring shared bandwidth information provided by a second router;
the sending of the segment information of the one or more resource segments to the second router comprises: and sending the fragment information of the resource fragments with the preset number to the second router according to the acquired shared bandwidth information of the second router.
In the above downloading method, the fragment information of the resource fragment includes: the download address of the resource file, the resource file identifier and the identifier of the resource segment in the resource file.
The downloading method comprises the following steps:
the first router and the second router are both provided with public network IP addresses, and the first router and the second router are in communication connection through the public network IP addresses; or,
a P2P network is formed between the first router and the second router, and the first router and the second router establish communication connection through the P2P network; or,
the first router and the second router are located in the same local area network, and the first router and the second router are in communication connection through the local area network.
A downloading apparatus of a resource file, applied to a first router, the first router being communicatively connected to one or more second routers, the downloading apparatus comprising:
the system comprises a detection unit, a download unit and a download unit, wherein the detection unit is used for detecting a download request of a client to a resource file in a server;
a dividing unit, configured to divide the resource file into a plurality of resource segments;
a requesting unit, configured to send segment information of one or more resource segments to the second router to request the second router to download a corresponding resource segment in the resource file from the server;
and the response unit is used for downloading the resource segment from the second router and providing the downloaded resource segment to the client.
The above downloading device, among others, further includes: an obtaining unit, configured to obtain shared bandwidth information provided by the second router;
the request unit is further to: and sending the fragment information of the resource fragments with the preset number to the second router according to the acquired shared bandwidth information of the second router.
The downloading device described above, wherein the clip information of the resource clip includes: the download address of the resource file, the resource file identifier and the identifier of the resource segment in the resource file.
A router comprises the downloading device of the resource file.
A system for downloading a resource file, comprising a first router and one or more second routers communicatively coupled to the first router, wherein:
the first router is used for dividing the resource file into a plurality of resource segments when detecting a downloading request of a client to the resource file in the server, and sending the segment information of one or more resource segments to the second router;
the second router is used for downloading the corresponding resource segments in the resource files from the server according to the segment information of the resource segments sent by the first router;
the first router is further used for downloading the resource segments from the second router and providing the downloaded resource segments to the client.
The above download system, wherein:
the first router and the second router are both provided with public network IP addresses, and the first router and the second router are in communication connection through the public network IP addresses; or,
a P2P network is formed between the first router and the second router, and the first router and the second router establish communication connection through the P2P network; or,
the first router and the second router are located in the same local area network, and the first router and the second router are in communication connection through the local area network.
According to one or more technical schemes of the invention, the multi-router mutually shares link bandwidth, and the multi-router cooperatively completes the same downloading task, so that the downloading speed of the resource file is obviously improved.
Drawings
FIG. 1 is a schematic diagram of a resource file download method according to the prior art;
FIG. 2 is a block diagram of a download system for resource files in accordance with one embodiment of the present invention;
FIG. 3 is a flowchart of a method for downloading a resource file according to one embodiment of the present invention;
fig. 4 is a structural diagram of a downloading apparatus of a resource file according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
First, a method for downloading a resource file according to the related art will be briefly described. Referring to fig. 1, when a user a needs to download a resource file from an internet server, a resource download request is first sent to the server through a client a installed in a user device (e.g., a personal computer, a smart phone, a Personal Digital Assistant (PDA), etc.), the client a is accessed to the server through a router a, and thus, the server sends data of the resource file to the client a through the router a, and all data of the resource file is sent to the client a through the router a. The wide area network bandwidth of the router a is limited, and the server may also limit the resource downloading speed of the client a, which all results in that the resource file downloading speed of the client a is relatively slow, thereby affecting the user experience.
In fact, both router B and router C can download resource files from the server. However, according to existing implementations, at the same time, it is possible that the bandwidth of router a is almost exhausted, but the bandwidth of router B and router C is idle. It can be seen that in the present case, only one router of its own home participates in the work. For example, during business hours, user a downloads a high-definition movie at home, but the routers of user B and user C as neighbors are free of bandwidth, and there is no way for user a to use the free bandwidth of the neighbors?
The embodiment of the invention just shares the link bandwidth with each other through the multi-router, and the multi-router cooperatively completes the same downloading task, thereby improving the downloading speed of the resource file. That is, what was originally done by a single router is now done cooperatively by multiple routers.
Fig. 2 is a block diagram of a download system of a resource file according to an embodiment of the present invention. Referring to fig. 2, the download system includes a first router (router a) and one or more second routers (router B and router C) communicatively connected to the first router, wherein:
the first router is configured to, when detecting a download request of a client for a resource file in a server, divide the resource file into a plurality of resource segments (n is shown in the figure, where n is an integer greater than 1), and send segment information of one or more resource segments to the second router;
the second router is used for downloading the corresponding resource segments in the resource files from the server according to the segment information of the resource segments sent by the first router;
the first router is further used for downloading the resource segments from the second router and providing the downloaded resource segments to the client.
The first router and the second router may be communicatively connected in various ways, three of which are given below as examples.
In a first mode, both the first router and the second router have public network IP addresses, and the first router and the second router establish communication connection through the public network IP addresses.
In a second mode, a P2P network is formed between the first router and the second router, and the first router and the second router establish communication connection through the P2P network.
In a third mode, the first router and the second router are located in the same local area network, and the first router and the second router establish communication connection through the local area network.
Fig. 3 is a flowchart of a downloading method of a resource file, which is applied to a first router (router a) that is communicatively connected to one or more second routers (router B and router C), according to an embodiment of the present invention. Referring to fig. 2 and 3, the downloading method may include:
step 302, detecting a downloading request of a client to a resource file in a server;
when a user a needs to download a resource file from an internet server, a resource download request is first sent to the server through a client a installed in a user device (e.g., a personal computer, a smart phone, a Personal Digital Assistant (PDA), etc.), where the client a is accessed to the server through a router a, so that the router a can obtain interaction information between the client a and the server. When the router a detects a download request of the client a for a resource file in the server, the router a can obtain relevant information of the resource file requested to be downloaded, such as a download address (URL) of the resource file, an identifier of the resource file, a size of the resource file, and the like, according to the interaction information.
Step 304, dividing the resource file into a plurality of resource segments;
after obtaining the relevant information of the resource file requested to be downloaded by the client a, the router a may divide the resource file into a plurality of resource segments according to a predetermined algorithm, where the information of each resource segment may include a download address of the resource file, a resource file identifier, an identifier of the resource segment in the resource file, and the like. The predetermined algorithm may be an average algorithm, for example, assuming that the size of the resource file is 1000M, the resource file may be divided into 100 resource segments on average, and each resource segment has a size of 10M. Of course, the predetermined algorithm may be other algorithms.
Step 306, sending segment information of one or more resource segments to the second router to request the second router to download corresponding resource segments in the resource file from the server;
because the router A, the router B and the router C have communication connection, after the resource file is divided into segments, the router B and the router C can be informed to cooperatively download part of the resource segments. Wherein, each router is responsible for downloading how many resource segments can be allocated according to a predetermined algorithm. For example, all resource segments may be evenly split among all routers, i.e., router a, router B, and router C each account for one third of the total number of segments. As another example, router a is responsible for a certain number of resource segments, while router B and router C share the remaining resource segments on average. According to the above example, a 1000M resource file is divided into 100 resource segments, and in one implementation, router a may download 40 of the resource segments by itself, while router B and router C may download 30 of the resource segments, respectively. For example, the router a downloads the first 40 resource segments, sends the segment information of the middle 30 resource segments to the router B, and sends the segment information of the last 30 resource segments to the router C. After the router B acquires the fragment information, downloading the corresponding 30 resource fragments from the server according to the fragment information and caching the resource fragments in the router B; after the router C acquires the fragment information, the router C downloads 30 corresponding resource fragments from the server according to the fragment information and caches the resource fragments in the router C.
And 308, downloading the resource segment from the second router, and providing the downloaded resource segment to the client.
In this step, in addition to providing the client a with the resource segments downloaded directly from the server by the router a, the client a is provided with the resource segments which are downloaded from the server and cached by the router B and the router C. Therefore, the resource files are downloaded from the server for the client A by 3 routers, so that the downloading speed of the resource files is obviously improved.
Since the wide area network bandwidth of each router may not be the same, and the shared bandwidth that each router opens to other routers may not be the same. Therefore, in order to fully utilize the bandwidth of each router, in another implementation manner of the embodiment of the present invention, the first router further obtains shared bandwidth information provided by the second router, and sends the segment information of the predetermined number of resource segments to the second router according to the obtained shared bandwidth information of the second router. Wherein, for the second router providing more shared bandwidth, the corresponding predetermined number is also larger. In specific implementation, a user may set a shared bandwidth for its own router, that is, set how much shared bandwidth the router can provide for other routers. For example, assuming that the bandwidth of the router B is 8M and the shared bandwidth set by the user B to the router B is 4M, the router a may utilize the bandwidth of the router B to be 4M.
The following embodiment is described by taking an example in which the client a downloads the resource file from the server. It is understood that, when the client B and the client C need to download the resource file from the server, they may also adopt a similar method as the client a.
Based on the same inventive concept as the downloading method, the embodiment of the invention also provides a device for realizing the method. Fig. 4 is a structural diagram of a downloading apparatus of a resource file according to an embodiment of the present invention, the downloading apparatus being applied to a first router, the first router being communicatively connected to one or more second routers. Referring to fig. 4, the downloading apparatus may include a detecting unit 42, a dividing unit 44, a requesting unit 46, and a responding unit 48, wherein:
the detecting unit 42 is configured to detect a request of a client to download a resource file in a server. When detecting a request of a client for downloading a resource file in a server, the detecting unit 42 may obtain related information of the resource file requested to be downloaded, for example, a download address (URL) of the resource file, an identifier of the resource file, a size of the resource file, and the like, according to interaction information between the client and the server.
The dividing unit 44 is configured to divide the resource file into a plurality of resource segments. The dividing unit 44 may divide the resource file into a plurality of resource segments according to a predetermined algorithm, and the information of each resource segment may include a download address of the resource file, an identifier of the resource segment in the resource file, and the like. The predetermined algorithm may be an averaging algorithm or other algorithm.
The requesting unit 46 is configured to send segment information of one or more resource segments to the second router to request the second router to download a corresponding resource segment in the resource file from the server. Since the first router is communicatively connected to one or more second routers, after the segment division of the resource file is performed, the request unit 46 may notify the second routers to cooperatively download a part of the resource segments therein. Wherein, each router is responsible for downloading how many resource segments can be allocated according to a predetermined algorithm.
The response unit 48 is configured to download the resource segment from the second router and provide the downloaded resource segment to the client. The response unit 48 obtains the resource segments that are downloaded from the server and cached from one or more second routers to provide to the client, in addition to providing the client with the resource segments that it has downloaded directly from the server. Therefore, the resource files are downloaded from the server for the client side in parallel by the router, so that the downloading speed of the resource files is obviously improved.
Since the wide area network bandwidth of each router may not be the same, and the shared bandwidth that each router opens to other routers may not be the same. Therefore, in order to fully utilize the bandwidth of each router, in another implementation manner of the embodiment of the present invention, the downloading apparatus further includes an obtaining unit (not shown) configured to obtain the shared bandwidth information provided by the second router, at this time, the requesting unit 46 is further configured to: and sending the fragment information of the resource fragments with the preset number to the second router according to the acquired shared bandwidth information of the second router.
Wherein, for the second router providing more shared bandwidth, the corresponding predetermined number is also larger. In specific implementation, a user may set a shared bandwidth for its own router, that is, set how much shared bandwidth the router can provide for other routers.
It should be noted that, for the above-mentioned embodiment of the downloading apparatus, since it is basically similar to the embodiment of the downloading method, the description is relatively simple, and for relevant points, reference may be made to part of the description of the embodiment of the method.
Further, an embodiment of the present invention further provides a router, where the router includes the above device for downloading a resource file.
An application example of the present invention is given below.
Taking an example that a home user watches high-definition video online, referring to fig. 2, assume that a router a, a router B, and a router C are located in the same cell and can communicate with each other, a wide area network bandwidth of the router a is 12M, a shared bandwidth provided by the router a is 8M, a wide area network bandwidth of the router B is 8M, a shared bandwidth provided by the router B is 4M, a wide area network bandwidth of the router B is 4M, and a shared bandwidth provided by the router B is 2M.
The client A sends a request for downloading the resource file to the server, and the client A accesses the server through the router A, so that the router A can acquire the interactive information between the client A and the server. When the router a detects a download request of the client a for a resource file in the server, the router a can obtain relevant information of the resource file requested to be downloaded, such as a download address (URL) of the resource file, an identifier of the resource file, a size of the resource file, and the like, according to the interaction information.
Assuming that the resource file has a size of 1000M, router a may divide the resource file into 100 resource segments on average, each resource segment having a size of 10M. The router a obtains its available bandwidth of 12M-8M =4M, the router B available bandwidth of 4M, and the router C available bandwidth of 2M. Then the allocation is made according to the available bandwidth of each router, router a is allocated 40 resource segments, router B is allocated 40 resource segments, and router C is allocated 20 resource segments. Specifically, the router a downloads the first 40 resource segments, sends the segment information of the middle 40 resource segments to the router B, and sends the segment information of the last 20 resource segments to the router C. After the router B acquires the fragment information, downloading 40 corresponding resource fragments from the server according to the fragment information and caching the resource fragments in the router B; after the router C acquires the segment information, the corresponding 20 resource segments are downloaded from the server according to the segment information and are cached in the router C.
When a client A requests to access a certain segment, the cache in one router can be directly accessed through the router A. For example, if the client requests to access the 50 th resource segment, the resource segment cached in the router B may be acquired through the router a.
In summary, according to one or more technical solutions of the embodiments of the present invention, the multiple routers share the link bandwidth, and the multiple routers cooperate to complete the same downloading task, so that the downloading speed of the resource file is significantly improved. Moreover, when the server has a rate limit for each client or the server has CDN distribution and local router LAN access, the technical effect of the embodiment of the present invention should be most obvious.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as one provided with a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here. In addition, those skilled in the art will appreciate that the modules or steps of the invention described above can be implemented by a general purpose computing device, they can be centralized on a single computing device or distributed over a network of multiple computing devices, and alternatively they can be implemented by program code executable by a computing device, such that they can be stored in a storage device and executed by a computing device, or they can be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof can be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for downloading a resource file is applied to a first router, and is characterized in that the first router is in communication connection with one or more second routers, and the method for downloading the resource file comprises the following steps:
detecting a downloading request of a client to a resource file in a server;
dividing the resource file into a plurality of resource segments;
sending segment information of one or more resource segments to the second router to request the second router to download corresponding resource segments in the resource file from the server;
and downloading the resource segments from the second router and providing the downloaded resource segments to the client.
2. The downloading method of claim 1, further comprising: acquiring shared bandwidth information provided by a second router;
the sending of the segment information of the one or more resource segments to the second router comprises: and sending the fragment information of the resource fragments with the preset number to the second router according to the acquired shared bandwidth information of the second router.
3. The downloading method of claim 1, wherein the fragment information of the resource fragment comprises: the download address of the resource file, the resource file identifier and the identifier of the resource segment in the resource file.
4. The download method as in claim 1, wherein:
the first router and the second router are both provided with public network IP addresses, and the first router and the second router are in communication connection through the public network IP addresses; or,
a P2P network is formed between the first router and the second router, and the first router and the second router establish communication connection through the P2P network; or,
the first router and the second router are located in the same local area network, and the first router and the second router are in communication connection through the local area network.
5. A downloading apparatus of a resource file, applied to a first router, wherein the first router is communicatively connected to one or more second routers, the downloading apparatus comprising:
the system comprises a detection unit, a download unit and a download unit, wherein the detection unit is used for detecting a download request of a client to a resource file in a server;
a dividing unit, configured to divide the resource file into a plurality of resource segments;
a requesting unit, configured to send segment information of one or more resource segments to the second router to request the second router to download a corresponding resource segment in the resource file from the server;
and the response unit is used for downloading the resource segment from the second router and providing the downloaded resource segment to the client.
6. The downloading device of claim 5, further comprising: an obtaining unit, configured to obtain shared bandwidth information provided by the second router;
the request unit is further to: and sending the fragment information of the resource fragments with the preset number to the second router according to the acquired shared bandwidth information of the second router.
7. The downloading apparatus of claim 5, wherein the fragment information of the resource fragment comprises: the download address of the resource file, the resource file identifier and the identifier of the resource segment in the resource file.
8. A router comprising means for downloading a resource file as claimed in any one of claims 5 to 7.
9. A system for downloading resource files, comprising a first router and one or more second routers communicatively coupled to the first router, wherein:
the first router is used for dividing the resource file into a plurality of resource segments when detecting a downloading request of a client to the resource file in the server, and sending the segment information of one or more resource segments to the second router;
the second router is used for downloading the corresponding resource segments in the resource files from the server according to the segment information of the resource segments sent by the first router;
the first router is further used for downloading the resource segments from the second router and providing the downloaded resource segments to the client.
10. The download system of claim 9, wherein:
the first router and the second router are both provided with public network IP addresses, and the first router and the second router are in communication connection through the public network IP addresses; or,
a P2P network is formed between the first router and the second router, and the first router and the second router establish communication connection through the P2P network; or,
the first router and the second router are located in the same local area network, and the first router and the second router are in communication connection through the local area network.
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| CN105391650A (en) * | 2015-10-20 | 2016-03-09 | 上海斐讯数据通信技术有限公司 | Method, route equipment and system for sharing broadband bandwidth |
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