WO2013022182A1

WO2013022182A1 - Device and method for distributed control of file downloading network

Info

Publication number: WO2013022182A1
Application number: PCT/KR2012/004534
Authority: WO
Inventors: Won Ki Kim; Sung Gook Jang; Kwang Hee Yoo; Joo Hyun Sung; Hye Jin Jin; Yoon Hyung Lee
Original assignee: Neowiz Games Corporation
Priority date: 2011-08-05
Filing date: 2012-06-08
Publication date: 2013-02-14
Also published as: KR101305062B1; KR20130015937A; CN102882925A; TW201308939A

Abstract

Provided is a file download network distribution controlling method. The method includes: loading by a distribution table management unit a network distribution table defining a ratio of a download amount using a connection with a download server network that supplies a file and a download amount using a P2P network with respect to a total download amount while the file is downloaded via a network; selecting by a network distribution controlling unit one the ratio stored in the network distribution table at each section that divides one period; and controlling by the network distribution controlling unit to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.

Description

DEVICE AND METHOD FOR DISTRIBUTED CONTROL OF FILE DOWNLOADING NETWORK

The present invention relates to a technique for downloading a file via a P2P network or a direct communication with a server. In more detail, the present invention relates to a technique for efficiently managing a traffic of a server network and reducing server operating costs by controlling a ratio of a P2p network and a server network during file download.

As a recent game culture, especially an online game culture, gains popularity regardless of man and women of all ages, an online game industry is also rapidly developed. Additionally, due to the improvements of multimedia technology such as graphic technology and network infra, a recent online game becomes quite different from a typical game, so that it is expected that the development of an online game industry becomes greater for many years to come.

A recent online game is played in a multi-user based network game system. A representative example of a network game includes an MMORPG. A user as one person on a game obtains experience points through deals, cooperation, and a war with others, and experiences the game.

Additionally, besides the online game culture, a file that implements a specific function becomes varying according to the development of computer related technology. According to a recent trend, such a file is downloaded free or charged via online, and then, is installed.

The file size of software such as an online game is being drastically increased. In order to receive a file via online in the past, users directly access a download server that provides files, and then, download them. However, with the condition that a file is large and many users use it (for example, an installation file of an online game), when a method for directly accessing a download server and receiving a file is used, many users accessthe download server at the same time. Thus, a communication of a server may be overloaded, and according thereto, its operation may stop.

A communication method recently introduced in order to reduce the overload of communication traffic of a server is a Peer to Peer (P2P) communication method. The P2P communication method is a method that separately receives a plurality of blocks constituting a file from users, who have the file to be received, among users connected via network, in order to increase a communication speed, and prevent a phenomenon that users flock to a download server.

However, according to the P2P communication,its speed is drastically changed according to the number of users accessing a network. Especially, in the case of online game software that varies according to the number of accessing users and frequently distributes files and file patches simultaneously, the usefulness of downloading files via a P2P network may vary.

The present invention provides a technique for efficiently managing a traffic of a download server network and guaranteeing a download speed by dynamically controlling a file download ratio through a direct connection to a network of a download server and a connection to a P2P network.

According to an aspect of the present invention, a file download network distribution controlling method includes: loading by a distribution table management unit a network distribution table defining a ratio of a download amount using a connection with a download server network that supplies a file and a download amount using a P2P network with respect to a total download amount while the file is downloaded via a network; selecting by a network distribution controlling unit one of at least one ratio stored in the network distribution table at each section that divides one period; and controlling by the network distribution controlling unit to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.

The method may further include loading by a network history management unit at least one history of a network traffic of the download server and the number of users accessing the P2P network, which are stored by the each section.

At least one of the network traffic and the accessing user number may beallocated to belong to one of a plurality of network distribution modes, and the ratio may be determined according to the network distribution mode in the network distribution table.

The selecting of the one of at least one ratio may include selecting the ratio correspondingto the network distribution mode allocated by the each section.

As at least one of the network traffic and the accessing user number is increased, a ratio of the download amount using the P2P network may be set to be increased in the network distribution table.

The loading of the table may include loading different network distribution tables according to a unit download data size of the file.

According to another aspect of the present invention, a network distribution controlling method includes: detecting by a server traffic detecting unit a network traffic of a download server that supplies a file; counting by an accessing user counter the number of users accessing a P2P network for the file; loading by a distribution table management unit a network distribution table defining a ratio of a download amount using a connection with the download server network and a download amount using the P2P network with respect to a total download amount of the file; and selecting by a network distribution controllingunit the ratio from the network distribution table by using at least one of the detected network traffic and the accessing user number, and controlling to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.

At least one of the network traffic and the accessing user number may beallocated to belong to one of a plurality of network distribution modes, and the ratio is determined according to the network distribution mode in the network distribution table.

The selecting of the one of at least one ratio may includeselecting the ratio corresponding to the network distribution mode by selecting the network distribution mode that at least one of the network traffic and the accessing user number belongs.

The loading of the table may includeloading different network distribution tables according to a unit download data size of the file.

According to still another aspect of the present invention, afile download network distribution controlling device includes: a distribution table management unit managing a network distribution table defining a ratio of a download amount using a connection with a download server network that supplies a file and a download amount using a P2P network with respect to a total download amount while the file is downloaded via a network; and a network distribution controlling unit selecting one of at least one ratio stored in the network distribution table at each section that divides one period, and controlling to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.

The device may further include a network history management unit managing at least one history of a network traffic of a download server for the file and the number of users accessing the P2P network at the each section.

The network distribution controlling unit may selectthe ratio corresponding to the network distribution mode allocated by the each section.

As at least one ofthe network traffic and the accessing user number is increased, a ratio of the download amount using the P2P network may be set to be increased in the network distribution table.

The distribution table management unit may set different network distribution tables according to a unit download data size of the file.

According to still another aspect of the present invention, afile download network distribution controlling device includes: a server traffic detecting unit detecting a network traffic of a download server that supplies a file; an accessing user counter counting the number of users accessing a P2P network for the file; a distribution table management unit managing a network distribution table defining a ratio of a download amount using a connection with the download server network and a download amount using the P2P network with respect to a total download amount of the file; and a network distribution controlling unit selecting the ratio from the network distribution table by using at least oneof the detected network traffic and the accessing user number, and controlling to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.

At least one of the network traffic and the accessing user number may be allocated to belong to one of a plurality of network distribution modes, and the ratio may be determined according to the network distribution mode in the network distribution table.

The network distribution controlling unit may selectthe ratio corresponding to the network distribution mode by selecting the network distribution mode that at least one of the network traffic and the accessing user number belongs.

According to the present invention, since a one period is divided by a section and a download server network and a P2P network are dynamically distributed and connected to user terminals according to a ratio corresponding to the section, the traffic of the download server network may be more efficiently managed as compared to when only one of the download server network or the P2P network is simply connected or the networks are statically distributed and connected. Accordingly, server operating costs may be reduced, and a high-quality file download service may be provided to a user.

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

Fig. 1 is a flowchart illustrating a file download network distribution controlling method according to an embodiment.

Fig. 2 is a flowchart illustrating a file download network distribution controlling method according to another embodiment.

Fig. 3 is a view illustrating a structure of a network system according to an embodiment.

Fig. 4 is a block diagram illustrating a file download network distribution controlling device according to an embodiment.

Fig. 5 is a view illustrating a connection structure of the simulator 600 according to an embodiment.

Fig. 6 is a block diagram illustrating a file download network distribution controlling device according to another embodiment.

Fig. 7 is a graph illustrating a history on a network traffic or the number of accessing users according to an embodiment.

Fig. 8 is a view illustrating a network distribution table according to an embodiment.

Fig. 9 is a view of when a network distribution mode is selected using a network traffic and accessing user number according to an embodiment.

Hereinafter, a network controlling device and method for downloading a fileand a network system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Moreover, detailed descriptions related to well-known functions or configurations will be ruled out in order not to unnecessarily obscure subject matters of the present invention. Embodiments below are detailed description for providing more general understandings and do not limit the range of rights. Accordingly, other equivalent embodiments performing the same functions as the present invention are in the range of the rights of the present invention.

Hereinafter, like identification symbols refer to like elements, and unnecessary overlapping descriptions are omitted.

Moreover, in the description below, the file refersto all data that a user terminal may download via Peer to Peer (P2P) communication and other network connections. Especially, files are downloaded basically via P2P communication. The files may include a game program file and its patch file, which are downloaded through a game execution client and then installed in a user terminal in order to execute an online game.

Actually, a plurality of files for online game execution are downloaded by accessing a download server that stores the files but as its filesize is increased, a technique for downloading files via P2P communication is recently applied.

Furthermore, besides the files for online game execution, it is apparent to those skilled in the art that all files downloadable using a P2P communication method that downloads each of blocks constituting files such as other general program files and media files from other user terminals are included in the files of the present invention.

The terms "communication", "communication network", and "network" mean the same in embodiments of the present invention. The above three terms refer a wire/wireless local and wide area data transmitting/receiving network that transmits/receives files between user terminals, other user terminals, and download servers.

In relation to the file download network distribution controlling method, a distribution table is loaded first in operation S1, which defines aratio of a download amount using a connection with a download server network and a download amount using a P2P network with respect to a file.

The network distribution table loaded in operation S1 refers to a data base where a ratio of download amounts via two network connections with respect to a file.

The file includes a plurality of unit blocks, each having a unit size, and according to the present invention, through a connection with a download server, some of the blocks constituting the file are received from the download server network, and the remaining blocks are received from other user terminals via a P2P network basically.

Accordingly, a download amount via a connection with the download server network and a download amount using the P2P network refer to the number of blocks downloaded via each network. That is, a ratio of download amounts through connections of two networks may be understood as a ratio of the number of blocks downloaded via the two networks.

There may be a plurality of ratiosdefined in the network distribution table, and the ratio of the number of blocks, which are dynamically downloaded via the download server network and the P2P network, may vary by selecting a ratio according to each situation in an overall flow.

The ratio defined in the network distribution table has a predetermined rule. For example, as the network traffic of the download server is increased, a ratio of download amount using the P2P network is set to be increased. When the network traffic of the downloadserver is increased, in case that a ratio of downloading a file in connection with the download server is high, overload may occur on the network of the download server. Therefore, a data transmission speed from the download server may be drastically slow down.

Additionally, as the number of users accessing the P2P network is increased, a ratio of download amount using the P2P network may be set to be increased. If the number of users accessing the P2P network is high, even when a ratio of download amount using the P2P network is increased, a download speed is appropriate, and overload may be prevented in advance by reducing a traffic of the download server network to the maximum.

Moreover, a different network distribution table may be loaded according to types of a file.

When being downloaded to a user through one of the P2P network or a direct connection to the server network, a file is divided into a plurality of blocks and downloaded as mentioned above. At this point, the unit size of the plurality of blocks may vary according to types of a file and settings of file creators and communication carriers. For example, the unit size may have 32 Kilo Bytes (KB) or 64 KB.

Accordingly, a ratio distributed to the download server network and the P2P network may vary according to a unit size of each file, and therefore, a different network distribution table needs to be loaded according to types of a unit size of each file.

An example of a network distribution table relating to the above will be described in more detail with reference to Figs. 8 and 9.

In operation S1, the network distribution table is loaded in order to prepare a ratio that is to be applied to a user terminal through the following operations.

After operation S1, network history data for each time slot to a download target file of the download server is selected in operation S2. Operation S2 refers to loading network history data that include a traffic of the download server network or the number of users accessing the P2P network according to a section having one regular period.

The network history data may be data obtained by accumulating traffic information on the download network or the number of users accessing the P2P network at each predetermined time slot (for example, a 3 hr interval) by using one day as a period. For example, an average value obtained by continuously measuring a traffic value of the download server network at each time slot may be included in the network history data, or the average number of users accessing the P2P network for a file may be included therein.

An average value of traffic values of the download server may be expressed as a percentage to the maximum available value of the download server network.

Once operation S2 is completed, a ratio matching each section that divides one period is selected in operation S3. That is, a network distribution ratio matching the network history data in a current time slot is selected.

In the present invention, the network history data for each section is set to be allocatedto a plurality of network distribution modes. For example, the case that a traffic value of the download server network is 10 % to 20 % is allocated to one mode. As a predetermined ratio is set in each mode, when a traffic value of a specific download server network in a current time slot is set or the number of users accessing the P2P network is set, a mode including a range that a predetermined each result belongs is selected and a ratio for download amount set in each mode is extracted simultaneously.

However, besides that, the ratio may be continuously set through a function having each traffic value and the number of accessing users as input values and a ratio as an output value.

That is, the extracting of the network distribution mode in operation S3 includes selecting a ratio matching the network history of a current section (i.e., in a current time slot).

After operation S3 is performed, according to the ratio, the download server network and the P2P network are distributed and connected to user terminals, and accordingly, it is controlled to download a file in operation S4.

According to the present invention, the bandwidth of the network may be divided in order to allow user terminals to connect to the distributed network. Additionally, a processor in a user terminal is a processor having a divisible processing function to process a plurality of networks simultaneously.

In general, in case that a terminal uses the P2P network, since the terminal needs to connect to other users while accessing the P2P network, it is apparent that the terminal has the function.

Fig. 2 is a flowchart illustrating a file download network distribution controlling method according to another embodiment. In the description below, overlapping descriptions relating to Fig. 1 will be omitted.

Referring to Fig. 2, before the network distribution table is loaded in operation S7, each traffic of the download server network is detected in operation S5 and the number of users accessing the P2P network is counted in operation S6.

That is, according to the embodiment of Fig. 1, the network history information including a traffic of the download server network or the number of users accessing the P2P network is stored in advance and loaded, so that a dynamic control is performed to distribute a network with a ratio defined for each time slot, and according to the embodiment of Fig. 2, this is measured in real time so that more dynamic control becomes possible.

After operation S7, without operation S3 of Fig. 1, a network distribution mode matching one of a current traffic of the download server network and the current number of users accessing the P2P network is selected. The network distribution mode refers to a plurality of modes having allocated ratios corresponding to each traffic range and a range of the number of accessing users, as described with reference to Fig. 1.

Then, in correspondence to operation S4 of Fig. 1, according to the selected network distribution mode, i.e., a ratio corresponding thereto, a file is downloaded in operation S9 after a direct communication amount from the connected download server and a communication amount via the connected P2P network are distributed.

According to the embodiment of Fig. 2, since a traffic and the number of accessing users are measured in real time and are immediately applied to the network distribution, there is a load necessary for processing additional data in server operations, but the network is distributed more accurately and dynamically.

Referring to Fig. 3, as a subject that performs the embodiments of Figs. 1 and 2, a network distribution controlling device 100 is included in the system. The network distribution controlling device 100 performs a function for adjusting network ratio according to a traffic on the network of the download server 400 and the number of users accessing the P2P network 300.

Accordingly, the network distribution controlling device 100 receives information on the number of accessing users from the P2P network 300, and receives traffic information on the network from the download server 400.

Moreover, when a user terminal 200 tries to connect to the network, it is controlled to distribute the user connection over the P2P network 300 and the download server 400 and try it

Fig. 4 is a block diagram illustrating a file download network distribution controlling device according to an embodiment. In the description below, overlapping descriptions relating to Figs. 1 to 3 will be omitted.

Referring to Fig. 4, the file download network distribution controlling device 100 includes a network history management unit 160, a timer 130, a distribution table management unit 140, and a network distribution controlling unit 150. The network distribution controlling unit 150 distributes and controls a network connection of a user terminal 200. The network history management unit 160 is connected to a simulator 600.

The distribution table management unit 140 stores different network distribution tables according to a unit download size of a file as mentioned above, and performs a function for delivering a network distribution table to the network distribution controlling unit 150.

The network history management unit 160 receives history information of the download server and history information of the P2P network from the simulator 600, and analyzes them.

The simulator 600 stores the network history information in real time, which is transmitted from the P2P network 300 and the download server 400. Through this, the past history of traffic information on the network of the download server 400 and the past history of information on the number of users accessing the P2P network 300 are accumulated and stored.

The information stored in the simulator 600 is delivered to the network history management unit 160 of Fig. 4 and is analyzed as mentioned above.

Referring to Fig. 4again, the network history management unit 160 receives the traffic information on the network of the download server 400 or the information on the number of users accessing to the P2P network 300 from the simulator 600. One of the above two information is used to select a network distribution mode. Or, all the two information may be used to select a network distribution mode.

The network history management unit 160 manages the network traffic of the download server 400 or a history on the number of usersaccessing the P2P network 400 by each section. Managing a history by each section refers to dividing one day into predetermined time slots (for example, a 3 hr time slot) and setting an average value of a network traffic in a time slot or an average value of the number of accessing users as network history information for each section.

The timer 130 performs a function for selecting a network distribution mode for each time slot by notifying information on each section according to one period, i.e., a time slot of one day.

The network distribution controlling unit 150 receives the network history information from the network history management unit 160 through the distribution table management unit 140, or directly from the history management unit 160. As mentioned above, the network history information includes at least one of the network traffic of the download server 400 and a history on the number of users accessing the P2P network 300.

Moreover, the network distribution controlling unit 150 receives a network distribution table corresponding to types of a file from the distribution table management unit 140.

Then, the network distribution controlling unit 150 selects a ratio for each section that divides one period, i.e., a network distribution mode,by using the network distribution table and network history information, and accordingly, distributes the download server network and P2P network to connect the user terminal 200 thereto.

Fig. 6 is a block diagram illustrating a file download network distribution controlling device according to another embodiment. In the description below, overlapping descriptions relating to Figs. 1 to 5 will be omitted.

Referring to Fig. 6, a difference between the embodiments of Figs. 5 and 6 corresponds to that between the embodiments of Fig. 1 and 2. That is, instead of the network history management unit 160, there are a server traffic detecting unit 110 and an accessing user counter 120.

The server traffic detecting unit 110 performs a function for detecting a traffic on the network of the download server 400 in real time. Additionally, the accessing user counter 120 measures the number of users accessing the P2P network 300 in real time.

Then, as described with reference to Fig. 2, a network distribution table matching a type of a file is selected from network distribution tables that the distribution table management unit 140 manages. At least one information of the traffic on the network of the download server 400 and the number of users accessing the P2P network 300, which are measured from the server traffic detecting unit 110 and the accessing user counter 120, respectively, and the selected network distribution table are delivered to the network distribution controlling unit 150. Then, the network distribution controlling unit 150 controls to distribute the network and connect to the user terminal 200 by using the received information.

The graph of Fig. 7 illustrates traffic information on a download server network and information on the number of users accessing a P2P network by each time slot, which are managed in correspondence to the embodiments of Fig. 1 and 4.

Referring to Fig. 7,one period is set with one day (24 hr) according to each embodiment of the present invention. Additionally, each section is divided by each 3 hr, and an average traffic value and an average accessing user number in each section are displayed at the end time (for example, 0 a.m., 3 a.m., 6 a.m., 12 p.m., 3 p.m., 6 p.m., and 9 p.m.) of each section. Additionally, Fig. 7 illustrates an example that a configuration corresponding to the embodiments of Figs. 1 and 4 is applied to a download server and a P2P network of an online game execution file.

First, the traffic of the download server network becomes 30 % of the maximum allowable traffic and the accessing user number is measured as 500 at 6 a.m.

Over time, the traffic is increased to 50 % and the accessing user number is increased to 600. The traffic and the number of users are changed over time and become 90 % and 2000, respectively, to the maximum at 0 a.m.

A mode recorded below the accessing user number of Fig. 7 refers to a network distribution mode. Each ratio is set according to a network distribution mode, and this will be described in more detail with reference to Fig. 8.

Data corresponding to the graph of Fig. 7 are data generated from the network history management unit 160 of Fig. 4, and are compared with a network distribution table in the network distribution controlling unit 150. Then, a ratio according to each mode is selected so that a network distribution of the user terminal 200 is controlled.

Fig. 8 is a view illustrating a network distribution table according to an embodiment. In the description below, overlapping descriptions relating to Figs. 1 to 7 will be omitted.

Referring to Fig. 8, the network distribution table (500) for two file types (for example, block sizes are 32 KB and 64 KB) is shown.

First, the block size 510 has types according to a data transmission block size. Each network distribution table is managed, including a file having a block size of 32 KB and a file having a block size of 64 KB.

First, in the case that a block size is 32 KB, information on a boundary size 520 is shown. The information on the boundary size 520 is a standard that determines whether to download data from a download server or a P2P network according to the size of data.

For example, if the boundary size is 5 KB, data of equal to or less than 5 KB are downloaded via the download server network, and data of more than 5 KB are downloaded via the P2P network. At this point, if downloading the final file is completed, the size 530 of blocks downloaded by the download server is 16 MB and the size 540 of blocks downloaded via the P2P network is 513 MB.

Moreover, if a block size is 32 KB and a boundary size is 30 KB, the size 530 of blocks downloaded by the download server is 57MB and the size 540 of blocks downloaded via the P2P network is 367MB. That is, as the boundary size is increased, a total accumulated size of blocks delivered via the download server network is also increased as a result.

The same is true when the block size is 64 KB. As the boundary size is increased, it is confirmed that a total size 530 of blocks downloaded by a download server is gradually increased, and a total size 540 of blocks downloaded via the P2P network is reduced.

Accordingly, a ratio of the size 530 of blocks downloaded by the download server and the size 540 of blocks downloaded via the P2P network is defined in the network distribution table. Each ratio is a mode according thereto, and matches the modes of 1 to 10.

A mode allocated for each time slot in the graph of Fig. 7 is implemented to correspond to a mode number of Fig. 8. Now, referring to Figs. 7 and 8 together, Fig. 7 is a graph of when a block size is 64 KB. In comparison between modes of 6 a.m. and 9 a.m., although there is difference in the number of accessing users by 100, the traffic of the download server network has a difference of about 20 %, so that its mode is divided into 9 and 8.

Additionally, in comparison between 12 p.m. and 3 p.m. (i.e., 15:00), the traffic of the download server network is equal to 40 %, but there is a difference in the number of users accessing the P2P network by about 300, so that its mode is divided into 6 and 7.

Moreover, according to the standard by which a mode is changed, as confirmed with reference to Fig. 7, as a traffic or the number of accessing users is increased, a download ratio using a connection to the P2P network is set to become higher.

Fig. 9 is a view of when a network distribution mode is selected using a network traffic and accessing user number according to an embodiment. In the description below, overlapping descriptions relating to Figs. 1 to 8 will be omitted.

That is, Fig. 9 illustrates a method of allocating a mode on the basis of the traffic of the download server network and the number of users accessing the P2P network of Fig. 7.

Referring to Fig. 9, there are a server traffic row 710, an accessing user number row 720, and a mode row 730. Numbers 1 to 5 are allocated to the server traffic row 710 and the accessing user number row 720. The numbers 1 to 5 are allocated to an identification number for each range after dividing a range of the download server traffic or an identification number for each range after dividing a range of the accessing user number.

Looking at the server traffic row710, the download server network traffic is divided into five ranges of 0 % to 100 %, and a number 711 is allocated to each range 712. Accordingly, a traffic measured or included in history information is matched to any one of the numbers 1 to 5.

Lookingat the accessing user number row 720, on the assumption that there is an accessing user number up to 2000 through measurement, a range of a user number is divided into five sections, and each one is matched to any one of the number 1 to 5. Accordingly, like the download server network traffic, an accessing user number measured or included in history information is also matched to any one of the numbers 1 to 5.

Each accessing user number of the download server network traffic and the P2P network is matchedto one of the number 1 to 5, and a mode is allocated according to a combination of each number. Referring to the mode row 730, it is confirmed that various modes are set according to each number. Like the embodiments of Figs. 7 and 8, as the download server network traffic is increased or the number of users accessing the P2P network is increased, the number of a mode is reduced. Therefore, as shown in Fig. 8, as the number of mode is reduced, a download ratio via the P2P network becomes higher.

Fig. 9 isan example of mode selection when the download server network traffic and the number of users accessing the P2P network are applied simultaneously. More preferably, it is apparent that there may be a separate table for a mode selection according to a range of the download server network traffic or for a mode selection according to a range of the number of users accessing the P2P network.

The present invention may be replaced, amended or modified by those skilled in the art, not being out of the spirit and scope of the inventive concept, and thus is not limited by the above-described embodiments and the accompanying drawings.

Claims

A file download network distribution controlling method comprising:

loading by a distribution table management unit a network distribution table defining a ratio of a download amount using a connection with a download server network that supplies a file and a download amount using a P2P network with respect to a total download amount while the file is downloaded via a network;

selecting by a network distribution controlling unit one of the ratio stored in the network distribution table at each section that divides one period; and

controlling by the network distribution controlling unit to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.
The method of claim 1, further comprising loading by a network history management unit at least one history of a network traffic of the download server and the number of users accessing the P2P network, which are stored by the each section.
The method of claim 2, wherein at least one of the network traffic and the accessing user number is allocated to belong to one of a plurality of network distribution modes, and the ratio is determined according to the network distribution mode in the network distribution table.
The method of claim 3, wherein the selecting of the one of the ratio comprises selecting the ratio corresponding to the network distribution mode allocated by the each section.
The method according to claim 2, wherein as at least one of the network traffic and the accessing user number is increased, a ratio of the download amount using the P2P network is set to be increased in the network distribution table.
The method of claim 1, wherein the loading of the table comprises loading different network distribution tables according to a unit download data size of the file.
A file download network distribution controlling method comprising:

detecting by a server traffic detecting unit a network traffic of a download server that supplies a file;

counting by an accessing user counter the number of users accessing a P2P network for the file;

loading by a distribution table management unit a network distribution table defining a ratio of a download amount using a connection with the download server network and a download amount using the P2P network with respect to a total download amount of the file; and

selecting by a network distribution controlling unit the ratio from the network distribution table by using at least one of the detected network traffic and the accessing user number, and controlling to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.
The method of claim 7, wherein at least one of the network traffic and the accessing user number is allocated to belong to one of a plurality of network distribution modes, and the ratio is determined according to the network distribution mode in the network distribution table.
The method according to claim 7, wherein as at least one of the network traffic and the accessing user number is increased, a ratio ofthe download amount using the P2P network is set to be increased in the network distribution table.
A file download network distribution controlling device comprising:

a distribution table management unit managing a network distribution table defining a ratio of a download amount using a connection with a download server network that supplies a file and a download amount using a P2P network with respect to a total download amount while the file is downloaded via a network; and

a network distribution controlling unit selecting one of theratio stored in the network distribution table at each section that divides one period, and controlling to download the file by distributing the download server network and the P2P network according to the selected ratio in order to connect to a user terminal.
The device of claim 11, further comprising a network history management unit managing at least one history of a network traffic of a download server for the file and the number of users accessing the P2P network at the each section.
The device of claim 11, wherein at least one of the network traffic and the accessing user number is allocated to belong to one of a plurality of network distribution modes, and the ratio is determined according to the network distribution mode in the network distribution table.
The device of claim 12, wherein the network distribution controlling unit selects the ratio corresponding to the network distribution mode allocated by the each section.
The device according to claim 11, wherein as at least one of the network traffic and the accessing user number is increased, a ratio of the download amount using the P2P network is set to be increased in the network distribution table.
The device of claim 10, wherein the distribution table management unit sets different network distribution tables according to a unit download data size of the file.