KR101220671B1 - Device and method for controlling network for downloading file - Google Patents

Abstract

PURPOSE: A network control device for file download and a method thereof are provided to use peer to peer(P2P) communication and direct download communication together, thereby guaranteeing a minimum file download speed. CONSTITUTION: An access sensing unit(110) senses access of a P2P network(250) in a user terminal. A speed measurement unit(120) measures a file download speed in the user terminal during a predetermined time from the beginning of a file download. When the file download speed is slower than a critical speed, a network connection control unit(130) connects the user terminal to a network in a download server(400). The download server directly transmits a file to the user terminal. A server network sensing unit checks a network environment in the download server for connecting the user terminal to the network. [Reference numerals] (110) Access sensing unit; (120) Speed measurement unit; (130) Network connection control unit; (400) Download server

Description

DEVICE AND METHOD FOR CONTROLLING NETWORK FOR DOWNLOADING FILE}

The present invention relates to a technique for controlling the type and speed of a network connected for downloading a file when the user terminal downloads the file over the network. More specifically, the present invention relates to a technology for guaranteeing a fast downloading speed for a user terminal by providing a plurality of network connections to a user terminal and ensuring stable distribution of traffic and a stable operation of a communication network for a service provider.

Recently, as the game culture, especially the online game culture has gained great popularity regardless of gender, young and old, the online game industry is also rapidly developing. In addition, due to the improvement of multimedia technology and network infrastructure such as graphic technology, the recent online games are becoming a game different from the conventional one, and the development direction of the online game industry is expected to be large in the future.

Recently, online games are being progressed in a network game system on the premise of multiple users. The network game method is, for example, MMORPG. A game that a user experiences while gaining experience through trading, co-op, and war with other people as a person in the game.

On the other hand, in addition to the online game culture, files that implement specific functions have recently been diversified according to the development of computer-related technologies, and these files have recently been received and installed online for free or for a fee due to the development of network technology. .

Software, including online games, is growing in file size. Conventionally, in order to receive a file online, users have downloaded the file by directly connecting to a download server that supplies the file. However, if the file is large and many users use the file (for example, the installation file of an online game), the user directly connects to the download server and receives the file. As a result, side effects such as the server stopping its operation have occurred.

Peer to Peer (P2P) communication has recently been introduced to reduce the traffic load on the server. P2P communication receives a plurality of blocks that make up a file separately from users who have files they want to receive among users connected through the network, increasing communication speed and causing users to download servers This is how you can prevent it.

However, the speed of P2P communication is very dependent on the number of user terminals that exist in the network and serve as a source for downloading files. When using a file download program using a P2P communication service, which is frequently serviced, the number of connected user terminals changes over time even when downloading the same file, and thus there is a time when the download speed of the file is significantly slowed down. This has caused inconvenience to users.

Therefore, the present invention provides both users with P2P communication and direct download method from the server, but controls the switching between P2P communication and direct download method, thereby guaranteeing the minimum file download speed to the user terminal. The purpose is to provide efficiency of use.

In addition, the service provider side can induce users to use the service by guaranteeing the minimum download speed to the user terminal, and minimize the server operating cost compared to the fast download speed, thereby minimizing the server operating cost The purpose is to provide a technology that can be supplied to the terminal.

In order to achieve the above object, the network control apparatus for a file download according to an embodiment of the present invention, the connection detection unit for detecting a connection to the peer-to-peer (P2P) network of the user terminal for the file download; A speed measuring unit measuring the file download speed of the user terminal detected by the connection detecting unit for a predetermined time from the start of file downloading; And a network connection controller for connecting the user terminal to a network of a download server and controlling the download server to directly transmit a file to the user terminal when the file download rate measured by the speed measuring unit is less than a threshold speed. It features.

Preferably, the threshold speed is an average value of values measured by the other user terminals who downloaded the file during the preset time.

The server network detection unit for checking the network environment of the download server in order to check whether the user terminal is connectable to the network of the download server is preferably further included.

The server network detector, when the value obtained by adding the current traffic of the network of the download server to the traffic increased when additionally connecting the user terminal to the download server is less than a preset threshold traffic value, the user terminal to the network of the download server It is preferable to transmit a signal that the connection is possible to the network connection control unit.

The network connection controller may be configured to connect the user terminal to the network of the download server when receiving a signal indicating that the user terminal is connectable from the server network sensor.

The increased traffic is preferably set to an integer multiple of the unit size of the data uploaded by the download server.

Network system for downloading files according to an embodiment of the present invention, one or more user terminals connected to the P2P network; A ticket issuing control device for measuring a file download rate of the user terminal through the P2P network for a predetermined time from the start of file download, and transmitting network information of the user terminal when the measured file download rate is less than a threshold speed; A ticketing server for issuing a direct connection ticket to the user terminal by using the network information received from the ticket issuing control device; And a download server for directly transmitting a file to the user terminal upon receiving the ticket from the user terminal.

The threshold speed is preferably an average value of values measured by the other user terminals who downloaded the file during the preset time.

The ticketing server is preferably configured to check the network environment of the download server to check whether the ticket is issued to the user terminal.

The ticketing server issuing the ticket to the user terminal when the current traffic of the network of the download server plus the traffic increased when additionally connecting the user terminal to the download server is less than a predetermined threshold traffic value. desirable.

The increased traffic is preferably set to an integer multiple of the unit size of the data uploaded by the download server.

The network system for file download according to another embodiment of the present invention is connected to a P2P network, and measures the file download rate through the P2P network for a predetermined time from the start of file download, thereby measuring the measured file download rate. A user terminal that transmits a direct connection ticket request signal when is less than a threshold speed; A download server for directly transmitting a file to the user terminal upon receiving a ticket from the user terminal; And a ticketing server for issuing the ticket to the user terminal according to a check result of whether the user terminal can be connected to the network of the download server when the ticket request signal is received.

The threshold speed is preferably an average value of values measured by the other user terminals who downloaded the file during the preset time.

The ticketing server may issue the ticket to the user terminal when the current traffic of the network of the download server plus the traffic increased when additionally connecting the user terminal to the download server is less than a predetermined threshold traffic value. desirable.

The increased traffic is preferably set to an integer multiple of the unit size of the data uploaded by the download server.

A network control method for file download according to an embodiment of the present invention may include: detecting, by a connection detecting unit, a connection of a user terminal to a P2P network for file download; Measuring a file download speed of the user terminal detected by the speed measurement unit for a preset time from the start of the file download; And connecting the user terminal to a network of a download server and controlling the download server to directly transmit a file to the user terminal when the measured file download rate is less than a threshold speed. .

Preferably, the threshold speed is an average value of values measured by the other user terminals who downloaded the file during the preset time.

The server network detection unit preferably further comprises the step of checking the network environment of the download server to check whether the user terminal can connect to the network of the download server.

The checking may include: when a value obtained by adding traffic increased when additionally connecting the user terminal to the download server to the current traffic of the network of the download server is less than a predetermined threshold traffic value, the user terminal to the network of the download server. It is preferable to transmit a signal that the connection is possible to the network connection control unit.

The controlling may include connecting the user terminal to a network of the download server when a signal indicating that the user terminal is connectable is received from the server network sensor.

In accordance with another aspect of the present invention, there is provided a network control method for file download, the method comprising: measuring a file download speed of a user terminal connected to a P2P network by a ticketing server for a predetermined time from the start of file download; ; The ticketing server issuing a direct connection ticket to the user terminal when the measured file download rate is less than a threshold speed; Transmitting, by the user terminal, the ticket to a download server; And transmitting the file directly to the user terminal when the download server receives the ticket.

Preferably, the threshold speed is an average value of values measured by the other user terminals who downloaded the file during the preset time.

Preferably, the ticketing server further includes checking a network environment of the download server to check whether the ticket can be issued to the user terminal.

According to the present invention, it is possible to ensure the minimum file download speed to the user terminal by using both P2P communication and direct download communication. In particular, based on P2P communication, if there is no other user or the file download speed is slow, by controlling to download directly from the server, it is possible to ensure the user the minimum file download speed when using the service.

In addition, according to the present invention, in terms of a service provider, it is possible to induce the user to use the service, and to minimize the server operating cost compared to the fast service supply, it is possible to enable efficient service supply.

1 is a block diagram of a network control apparatus for file download according to an embodiment of the present invention.
2 is a block diagram of a network control apparatus for file download according to another embodiment of the present invention.
3 is a block diagram of a network system for file download according to an embodiment of the present invention.
4 is a configuration diagram of a network system for file download according to another embodiment of the present invention.
5 is a graph illustrating a relationship between the number of user terminals and traffic when implementing a network system for file download according to an embodiment of the present invention.
6 is a flowchart of a network control method for file download according to an embodiment of the present invention.
7 is a flowchart of a network control method for file download according to another embodiment of the present invention.
8 is a flowchart of a network control method for file downloads according to another embodiment of the present invention.

Hereinafter, a network control apparatus and method for downloading files and a network system according to embodiments of the present invention will be described with reference to the accompanying drawings.

In the following description, in order to clarify the understanding of the present invention, description of well-known technology for the features of the present invention will be omitted. The following embodiments are detailed description to help understand the present invention, and it should be understood that the present invention is not intended to limit the scope of the present invention. Therefore, equivalent inventions that perform the same functions as the present invention will also fall within the scope of the present invention.

In the following description, the same identification symbol means the same configuration, and unnecessary redundant description will be omitted.

In addition, in the following description, the file refers to all data that can be downloaded by the user terminal through peer-to-peer (P2P) communication and other network connections. In particular, it basically means a file to download using P2P communication. For example, a game program file downloaded through a game execution client and installed in a user terminal and a patch file thereof for execution of an online game.

Indeed, many online game execution files have been downloaded directly by accessing a download server that stores files. However, as the capacity increases, a technique of downloading a file using P2P communication has recently been applied.

Further, in addition to the online game execution file, all files that can be downloaded using the P2P communication method that downloads the blocks constituting the file from other user terminals, such as other general program files and media files, may belong to the file of the present invention. It will be obvious to those skilled in the art.

In the embodiments of the present invention, " communication ", " communication network ", and " network " The three terms refer to wired and wireless local area and wide area data transmission and reception networks capable of transmitting and receiving a file between a user terminal, a terminal of another user, and a download server.

1 is a block diagram of a network control apparatus for file download according to an embodiment of the present invention.

Referring to FIG. 1, a network control device (hereinafter referred to as a “control device”) 100 for downloading a file according to an embodiment of the present invention may include a connection detection unit 110, a speed measurement unit 120, and a network connection. The controller 130 is included.

The connection detector 110 detects a connection of the PTP network of the user terminal 200 to download a file.

For example, the user terminal 200 accesses a game client to download an online game executable file. Accessing the game client means a series of input actions by clicking an icon in a window to directly connect to a game server, or accessing a service website that supplies a game and clicking a game execution icon or a file download icon in the website. .

When you connect to the game server or click on an icon in the website, the download of the game executable file begins. That is, the game server connects the user terminal 200 to the network 300 formed by the terminals 310 of other users connected to the network using the P2P communication network 250.

In the P2P communication network 250, a file existing in the terminal 310 of other users is transmitted to the user terminal 200 through a relay means such as a server or other gateway. In particular, the file is divided into a plurality of blocks of a unit size, and one or more different blocks are downloaded separately from each of the terminal 310 of other users, and the user terminal 200 combines them to complete the download of the file.

That is, in the PTP network 250, a plurality of user terminals having the same file must exist, and the terminals of the users who store the files by the user terminal 200 or the server and other relay means (not shown) may be relayed. Search.

The searched terminals of the user are connected to the terminal of the user who wants to download a file by using a local area or wide area network, and transmit a block allocated to the terminal of the user.

The connection detecting unit 110 determines whether the user terminal 200 accesses the PTP network having the above-mentioned characteristics, and transmits the information of the connected user terminal 200 to the speed measuring unit 120. . The information of the user terminal 200 transmitted from the connection detecting unit 110 to the speed measuring unit 120 may include one or more of login information of the connected user and an IP address of the user terminal 200.

The speed measuring unit 120 connects to the network of the user terminal 200 by using the information of the connected user terminal 200 received from the connection detecting unit 110, and determines the file download speed of the user terminal 200. It is measured for a preset time from the start of file download.

In order to measure the file download speed, the speed measurement unit 120 accesses the PTU network 250 to which the user terminal 200 belongs, and measures the data transmission speed from the other user terminal 310 toward the user terminal 200. Measure

As a transmission / reception rate of data, bit per second (BPS) or the like may be used as the unit. However, it will be apparent that other measurement units and methods of data transmission / reception rates generally used in the art may also be used.

The speed measuring unit 120 connects to the P2P communication network 250 to which the user terminal 200 belongs, and recognizes a file download start point to the user terminal 200. For example, if there is a transmission of data including the first header of the file, it can be recognized as a file download start point.

When the file download start point is recognized, the speed measuring unit 120 measures the file download speed for a preset time. In the present invention, the preset time may be, for example, 15 seconds. In the present invention, the file download speed means an average download speed during a preset time.

In another embodiment of the present invention, the download speed is measured for a preset time (for example, 15 seconds) after a predetermined time (for example, 2 seconds) has passed after the file download starts without recognizing a file download start point. You may.

The file download speed of the user terminal 200 measured by the speed measuring unit 120 is then transmitted to the network connection control unit 130.

The network connection controller 130 is connected to the user terminal 200 based on the file download speed of the user terminal 200 and the information of the user terminal 200 during the preset time measured by the speed measuring unit 120. To control.

That is, when the file download speed is less than the threshold speed previously stored in the network connection control unit 130, it is determined that the file download through the PTU network 250 is not suitable, and the user terminal 200 is connected to the network of the download server 400. Direct connection, and controls to transfer the file directly to the user terminal 200 by using the data transmission in the fast mode from the download server (400).

If the file download speed is less than the threshold speed, the peer-to-peer communication network 250 does not have another user terminal 310 that stores a file to be downloaded by the user terminal 200 or the other user terminal 310. It means that the communication does not meet the proper speed.

Therefore, in order to guarantee the minimum file download speed to the user, if it is determined that the file download speed is less than the threshold speed, the user terminal 200 is connected to the high speed data transmission / reception network among the networks of the download server 400, The high speed file download service is provided to the 200.

In the present invention, the threshold rate refers to an average value of values measured for a preset time in other user terminals that have downloaded a file.

Since the speed measuring unit 120 measures the file download speed of all users whose connection is detected, the speed measurement unit 120 may store details of file download speeds of all users before the current time point, including the user terminal 200 that downloads the current file. . The average of past stored file download rate values is used as the minimum file download rate to be guaranteed to the user terminal 200.

The threshold rate may also mean the rate of data transmission and reception between user terminals and the service operations server in average traffic of a service operations server (not shown). The threshold speed is a data transmission / reception rate between the service operation server and all user terminals in the service operation server measured on average in order to reduce the consumption of storage space by storing the file download speed history in the speed measurement unit 120. The data transmission / reception rate between user terminals may be set to the data transmission / reception rate when the average value of the traffic.

When the file download speed of the user terminal 200 is less than the threshold speed set in the above-described manner, the network connection controller 130 controls the user terminal 200 to be directly connected to the network of the download server 400. Using the allocated network connection, the user terminal 200 controls to download the file directly from the download server 400.

Through this, the minimum file download speed is guaranteed to the user, thereby increasing the service utilization rate. In particular, in the case of an online game service that requires frequent file delivery to users due to distribution of patch files, the effect will be even greater.

2 is a block diagram of a network control apparatus for file download according to another embodiment of the present invention. In the following description, the description of the parts overlapping with those of FIG. 1 will be omitted.

Referring to FIG. 2, the embodiment of FIG. 2 differs from the embodiment of FIG. 1 in that the server network sensing unit 140 exists.

In the embodiment of FIG. 1, the number of user terminals 200 whose file download speed is less than the threshold speed is measured may be one or more. Therefore, before connecting the user terminal 200 determined that the file download speed is less than the threshold speed to the network of the download server 400, a plurality of terminals may already be connected to the network of the download server 400.

If the terminals connected to the network of the download server 400 increase rapidly, the traffic of the download server 400 may exceed the allowable traffic, and in this case, the network of the download server 400 is overloaded, and the P2P communication is rather increased. The file can be downloaded to the user terminals at a slower download speed than when using the scheme.

Therefore, in the embodiment of Figure 2, in order to more efficiently implement the overload of the network of the download server 400 and the object of the present invention, the server network detection unit 140 is further included.

The server network detector 140 performs a function of checking whether the user terminal 200 can be connected to the network of the download server 400. In more detail, the network environment of the download server 400 is checked to determine whether the user terminal 200 is connected to the network of the download server 400.

In the present invention, the network environment of the download server 400 checked by the server network sensor 140 means network traffic of the download server 400. However, in another embodiment of the present invention, the average data transmission speed of the download server 400, the number of connected terminals and the available bandwidth are included in the network environment of the download server 400 checked by the server network detector 140. Could be.

For example, the server network detector 140 may increase information when, for example, information regarding the traffic of the network of the download server 400 and the current user terminal 200 to be connected are additionally connected to the download server 400. The traffic value is received from the network management means (not shown) of the download server 400.

The traffic value increased when the user terminal 200 is additionally connected to the download server 400 is a size set by an integer multiple of the unit size of data uploaded by the download server 400, that is, transmitted to the user terminal 200. Can be. That is, the size of the data uploaded by the download server 400 is an increase in traffic amount during data transmission and reception. In addition, when the file is directly transmitted from the download server 400 to the user terminal 200, the size of an integer multiple of the unit size of the data uploaded by the download server 400 will be repeatedly transmitted to the user terminal 200. Accordingly, the increased traffic may be set to an integer multiple of the unit size of the data uploaded by the download server 400.

In addition, the increased traffic value may be set to an average value of the increased traffic values when the terminals of the past are connected. In addition, depending on the characteristics of the user terminal 200, the traffic information that is increased when the connection attempt may be directly received from the user terminal 200.

When the traffic of the network of the current download server 400 and the traffic value increased when the user terminal 200 to be connected to the download server 400 are received, the server network detection unit 140 receives the two traffic values. It is determined whether the sum is less than a predetermined threshold traffic value.

In the present invention, the threshold traffic value may be, for example, 90% of the maximum traffic value of network traffic provided by the download server 400 for data transmission and reception. However, the setting of the threshold traffic value may be variable in server operation.

As a result of determination, when the sum of the two traffic values is less than the threshold traffic value, the server network detection unit 140 signals to the network connection control unit 130 that the user terminal 200 can connect to the network of the download server 400. Will be sent. In this way, the network connection controller 130 connects the user terminal 200 to the download server 400 to control the file to be transmitted directly from the download server 400 to the user terminal 200.

The server network detection unit 140 may prevent overload of the network of the download server 400, thereby ensuring a sufficient download speed. In addition, in terms of server operation, by minimizing server operating costs, it is possible to enable efficient server operation.

3 is a block diagram of a network system for file download according to an embodiment of the present invention. In the following description, portions that overlap with the description of FIGS. 1 and 2 will be omitted.

Referring to FIG. 3, a network system for downloading files according to an embodiment of the present invention may include at least one user terminal 310, a ticket issuing control device 101, a ticketing server 500, and a download server 400. Preferably configured.

The set 300 of user terminals 310 refers to a set of a plurality of user terminals connected through a P2P communication network. Each of the user terminals 310 is networked with other terminals through a peer-to-peer communication network, and is connected to an external server through a wide area network, for example, a ticket issuing control device 101, a ticketing server 500, and a download server 400. ) And the like.

The ticket issuing control device 101 is connected to the user terminal 310 and measures the file download speed through the P2P network of the user terminal 310 for a predetermined time from the start of the file download. That is, the functions of the connection detecting unit 110 and the speed measuring unit 120 in FIG. 1 will be included.

The ticket issuing control device 101 transmits network information of the user terminal 310 when the measured file download speed is less than the threshold speed, corresponding to the function of the speed measuring unit 120 in FIG. 1. The network information of the user terminal 310 corresponds to the information of the user terminal in FIG. 1, and may be, for example, an ID of a user connected to a service operation server or an IP address of the connected user terminal 310. .

The ticket issuing control device 101 is shown in a configuration that exists separately from the ticketing server 500 in FIG. That is, the ticket issuing control device 101 may exist as a separate device from the ticketing server 500, but the ticket issuing control device 101 may be integrally formed with the ticketing server 500.

The ticketing server 500 receives network information of the user terminal 310 from the ticket issuing control device 101. Thereafter, a direct connection ticket is issued to the user terminal 310 corresponding to the network information.

Issuing a direct connection ticket means transmitting data corresponding to the direct connection ticket to the user terminal 310. The direct connection ticket is data having a predetermined size, and inside the data, a code for authenticating a direct connection with the download server 400 is included.

The ticketing server 500 issues a ticket to the user terminal 310 and transmits data including information indicating that the ticket has been issued to the user terminal 310 to the download server 400. The information transmitted from the ticketing server 500 to the download server 400 includes a signal informing of ticket issuance and network information of the user terminal 310 received from the ticket issuing control device 101.

The download server 400 receives information that a ticket has been issued to the user terminal 310 from the ticketing server 500, and waits for a connection of the user terminal 310. When the user terminal 310 requests a connection to the download server 400 while receiving a ticket, the download server 400 verifies the validity of the ticket and compares network information to authenticate the connection suitability of the user terminal 310. Done.

When the user terminal 310 completes valid authentication, the download server 400 transmits the stored file to the user terminal 310.

The ticketing server 500 may further include a function of checking a network environment of the download server 400 in the present invention. That is, before issuing a ticket, a signal for checking the network environment of the download server 400 may be transmitted. As mentioned in the description of FIG. 1, this is to prevent overload of the network of the download server 400.

When receiving the current network environment, for example, the current traffic information from the download server 400, the ticketing server 500 is added to the traffic value that is increased when the user terminal 310 is connected to the download server 400, Only when this value is less than the predetermined threshold traffic value, the ticket is issued to the user terminal 310. Since the description of the increased traffic value has been mentioned in the description of FIG. 2, it will be omitted.

4 is a configuration diagram of a network system for file download according to another embodiment of the present invention.

Referring to FIG. 4, the network system for file download according to another embodiment of the present invention is different from the network system for file download according to the embodiment of FIG. 3, and the ticket issuing control device 101 (see FIG. 3). Is that it does not exist.

In the embodiment of FIG. 4, the user terminal 200 measures a communication speed with another user terminal 310. That is, the user terminal 200 measures the file download speed in FIGS. 1 to 3.

After starting to download the file, the user terminal 200 measures the average file download speed for a preset time. After that, if the measured file download speed is less than the threshold speed, the direct connection ticket request signal is transmitted to the ticketing server 500. The description of the critical velocity is as mentioned in the description of FIGS.

When the ticketing server 500 receives the ticket request signal from the user terminal 200, the ticketing server 500 checks the network environment of the download server 400 to determine whether the user terminal 200 can be connected to the network of the download server 400. After determining, the ticket is issued to the user terminal 200 according to the determination result. Features for checking the network environment of the download server 400 and detailed features thereof are as mentioned in the description of FIGS.

In another embodiment of FIG. 4, the user terminal 200 continuously transmits a file download rate to the ticketing server 500, and the average value of the file download rate received by the ticketing server 500 for a preset time. And compare the stored threshold speed, and may issue a ticket to the user terminal 200.

5 is a graph illustrating a relationship between the number of user terminals and traffic when implementing a network system for file download according to an embodiment of the present invention.

In FIG. 5, an example of determining whether a user terminal can be added to the download server by comparing the increased traffic and the network environment information of the download server 400 is illustrated in FIGS. 1 to 4.

Referring to the graph of FIG. 5, the normal traffic of the download server is set to T1, and three terminals attempt to connect. That is, it is assumed that there are three terminals whose file download speed is less than the threshold speed. First, when the terminal P1 accesses and measures a file download speed, if it is less than the threshold speed, a ticket is issued through the process described with reference to FIGS. 1 to 4. In the description of FIG. 1, it means that the network connection controller 130 controls to directly connect the terminal P1 to the download server 400.

When the terminal P1 is issued a ticket and connected to the network of the download server through the ticket, the download server transmits the file to the terminal P1 at the time point T1. As the file is transmitted from the download server to the terminal P1, the traffic rises by dT and its size becomes T2. As mentioned above, dT, which is an increase in traffic, may have an integer multiple of a unit size of data uploaded by a server.

Like the terminal P1, the terminal P2 accesses the download server at the time point T2 to download the file, and at this time, the traffic of the download server's network becomes T3, which is increased by dT from T2.

However, the terminal P3 cannot be connected to the network of the download server. When the terminal P3 is connected to the network of the download server, as shown in the dotted line graph 601, the traffic of the network of the download server exceeds the threshold traffic value Tm, so that ticket issuance is refused for stable operation of the download server.

That is, at this time, ticket issuance for the terminal P3 is rejected, and the traffic value of the network of the download server is maintained at T3 smaller than the threshold traffic value Tm.

6 is a flowchart of a network control method for file download according to an embodiment of the present invention. In the following description, portions overlapping with the description of FIGS. 1 to 5 will be omitted.

In the following description, each step of the flowcharts shown in FIGS. 6, 7 and 8 is preferably performed by each configuration in the network control apparatus or network system for file download mentioned in the description of FIGS. 1 to 4. Do. However, in addition to each of the above configuration, it will be obvious that it can also be performed by one processor and server.

Referring to FIG. 6, a network control method for downloading a file according to an embodiment of the present invention includes first detecting a connection of a user terminal to a peer-to-peer network (ie, a communication network) (S10). The step S10 refers to the same step as the function performed by the connection detection unit 110 in FIG. 1.

Thereafter, when the user terminal accesses the P2P network and starts to download a file, a step (S20) of measuring a file download speed for a predetermined time (for example, 15 seconds) after the file download starts is performed. This corresponds to a function performed by the speed measuring unit 120 in FIG. 1.

Thereafter, the network connection controller 130 determines whether the file download speed measured by the step S20 is less than the threshold speed (S30). When the file download speed is not less than the threshold speed as a result of the step S30, the network connection control unit 130 continues to control the user terminal to continue downloading the file through the P2P network (S50).

On the other hand, if it is determined that the file download speed is less than the threshold speed as a result of the step S30, the step of controlling the network connection control unit 130 to download the file by connecting the user terminal to the network of the download server is performed (S40) do. That is, in step S40 the file is directly sent to the user terminal by the download server.

7 is a flowchart of a network control method for file download according to another embodiment of the present invention.

The description of FIG. 7 corresponds to the description of FIG. 2, and similarly to the difference between FIGS. 1 and 2, FIG. 7 compares the network environment of the download server to the user terminal by checking the network environment of the download server. A series of steps are added to determine whether to connect directly to.

That is, after performing the steps S10 to S30, after determining that the file download speed is less than the threshold speed, the server network detector checks the network environment of the download server (S31). As mentioned above, the network environment of the download server means the current traffic value of the download server network, but in addition, the average data transmission speed of the download server, the number of connected terminals and the available bandwidth may be included in the environment of the download server. .

When the current traffic value of the download server is measured through step S31, determining whether the sum of the measured traffic value and the traffic increase amount when the user terminal is additionally connected to the network exceeds the threshold traffic value (S32). ) Is performed.

As a result of the step S32, if it is determined that the value of the traffic of the current download server plus the increased traffic when the user terminal is additionally connected to the download server is less than the predetermined threshold traffic value, the user server is connected to the download server to the file In step S40, the network connection control unit 130 controls to download the data.

If it is determined that the result of step S32 is exceeded, step S50 of FIG. 6 is performed to continuously transmit a file from another user terminal to the user terminal through the P2P network.

8 is a flowchart of a network control method for file downloads according to another embodiment of the present invention. In the following description, a description overlapping with the description of FIGS. 1 to 7 will be omitted.

8 illustrates each step performed on the network system of FIGS. 3 to 4. In the embodiment of FIG. 8, the user terminal, the ticket issuing control device, the ticketing server, and the download server each perform the step. As mentioned in the description of FIG. 3, since the ticket issuing control device may be integrated with the ticketing server, each step of FIG. 8 performed by the ticket issuing control device may be understood as a step performed by the ticketing server. Could be.

Referring to FIG. 8, first, a user terminal accesses a P2P network and starts downloading a file (S100).

Thereafter, the step S110 of measuring the file download speed of the user terminal by the user terminal, the ticket issuing control device, or the ticketing server for a preset time is performed. When the step S110 is performed, it is determined whether the download speed of the file is less than the threshold speed (S120).

If it is determined that the file download speed is less than the threshold speed, the ticket issuance control device performs a step S130 of requesting ticket issuance to the ticketing server. Of course, if the ticketing server performs step S120, step S130 may be omitted.

Thereafter, the ticketing server performs steps S31 and S32 of FIG. 7 for checking the network environment of the download server, and then performs a step of issuing a ticket in response to the ticket issuance request (S140).

The user terminal receiving the ticket issued in step S140 performs a step S150 of transmitting the ticket to the download server. Of course, the network information of the ticket and the user terminal is also transmitted to the download server in the ticketing server as mentioned in the description of FIGS. 3 and 4.

In step S150, the download server receives the ticket from the user terminal and receives the ticket and the network information of the user terminal from the ticketing server, and undergoes an authentication procedure for the user terminal. Downloading step S160 is performed. In other words, step S160 is a step in which the download server directly sends a file to the user terminal.

If the download speed is not less than the threshold speed, the user terminal continuously performs a step (S170) of downloading the file through the P2P network.

Claims (23)

A connection detecting unit detecting a connection of a user terminal to a P2P network for downloading a file;
A speed measuring unit measuring the file download speed of the user terminal detected by the connection detecting unit for a predetermined time from the start of file downloading;
A network connection control unit for connecting the user terminal to a network of a download server and controlling the download server to directly transmit a file to the user terminal when the file download rate measured by the speed measuring unit is less than a threshold speed; And
And a server network detector for checking a network environment of the download server to check whether the user terminal is connectable to the network of the download server.
The server network detection unit,
If the current traffic of the network of the download server plus the traffic increased when additionally connecting the user terminal to the download server is less than a predetermined threshold traffic value, a signal indicating that the user terminal can connect to the network of the download server is available. The network control device for downloading files, characterized in that sent to the network connection control unit. The method of claim 1,
The threshold speed is a network control device for downloading a file, characterized in that the average value of the values measured in the other user terminals that downloaded the file for the predetermined time. delete delete The method of claim 1,
The network connection control unit,
And receiving the signal that the user terminal is connectable from the server network sensor, connecting the user terminal to the network of the download server. The method of claim 1,
The increased traffic is a network control device for downloading a file, characterized in that the size is set to an integer multiple of the unit size of the data uploaded by the download server. One or more user terminals connected to a P2P network;
A ticket issuing control device for measuring a file download rate of the user terminal through the P2P network for a predetermined time from the start of file download, and transmitting network information of the user terminal when the measured file download rate is less than a threshold speed;
A ticketing server for issuing a direct connection ticket to the user terminal by using the network information received from the ticket issuing control device; And
And a download server for directly transmitting a file to the user terminal upon receiving the ticket from the user terminal.
The ticketing server,
The network environment of the download server is checked to check whether the ticket can be issued to the user terminal, and the current traffic of the network of the download server is added to the traffic increased when additionally connecting the user terminal to the download server. And if the value is less than a predetermined threshold traffic value, issuing the ticket to the user terminal. The method of claim 7, wherein
The threshold speed is a network system for downloading files, characterized in that the average value of the values measured in the other user terminals that downloaded the file for the predetermined time. delete delete The method of claim 7, wherein
The increased traffic is a network system for file download, characterized in that the size is set to an integer multiple of the unit size of the data uploaded by the download server. A user terminal connected to a peer-to-peer network and measuring a file download rate through the peer-to-peer network for a preset time from the start of file download, and transmitting a direct connection ticket request signal when the measured file download rate is less than a threshold rate;
A download server for directly transmitting a file to the user terminal upon receiving a ticket from the user terminal; And
When the ticket request signal is received, the ticket is issued to the user terminal according to a check result of whether the user terminal can be connected to the network of the download server, and the user terminal is transmitted to the current traffic of the network of the download server. And a ticketing server for issuing the ticket to the user terminal when a value obtained by adding traffic increased upon additional connection to a download server is less than a predetermined threshold traffic value. The method of claim 12,
The threshold speed is a network system for downloading files, characterized in that the average value of the values measured in the other user terminals that downloaded the file for the predetermined time. delete The method of claim 12,
The increased traffic is a network system for file download, characterized in that the size is set to an integer multiple of the unit size of the data uploaded by the download server. Detecting, by the connection detecting unit, a connection of the user terminal to the P2P network for file download;
Measuring a file download speed of the user terminal detected by the speed measurement unit for a preset time from the start of the file download;
If the measured file download rate is less than a threshold speed, connecting the user terminal to a network of a download server and controlling the download server to directly transmit a file to the user terminal; And including,
And checking, by a server network detector, the network environment of the download server to check whether the user terminal can connect to the network of the download server.
The checking step,
If the current traffic of the network of the download server plus the traffic increased when additionally connecting the user terminal to the download server is less than a predetermined threshold traffic value, a signal indicating that the user terminal is connectable to the network of the download server is available. Transmitting to the network connection control unit. 17. The method of claim 16,
The threshold speed is a network control method for downloading a file, characterized in that the average value of the values measured by the other user terminals that downloaded the file for the predetermined time. delete delete 17. The method of claim 16,
Wherein the controlling comprises:
And connecting the user terminal to the network of the download server when the signal indicating that the user terminal is connectable is received from the server network sensor. Measuring, by the ticketing server, a file download speed of the user terminal connected to the P2P network for a predetermined time from the start of the file download;
When the measured file download rate is less than a threshold speed, the ticketing server checks the network environment of the download server and issues a direct connection ticket to the user terminal to check whether the ticket can be issued to the user terminal. step;
Transmitting, by the user terminal, the ticket to a download server; And
And transmitting, by the download server, a file directly to the user terminal upon receiving the ticket.
Issuing the direct connection ticket,
A file for issuing a direct connection ticket to the user terminal when a value obtained by adding traffic increased when additionally connecting the user terminal to the download server to the current traffic of the network of the download server is less than a predetermined threshold traffic value; How to control the network for downloading. The method of claim 21,
The threshold speed is a network control method for downloading a file, characterized in that the average value of the values measured by the other user terminals that downloaded the file for the predetermined time. delete

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