KR20100050594A - System and method for content delivery using cache server and browser cache - Google Patents

Abstract

PURPOSE: A content transmission system using a browser cache of a wireless terminal and a cache server and a method thereof are provided to group a browser cache of a corresponding wireless terminal and a browser cache of another wireless terminal when a content request exists from a wireless terminal and transmit corresponding contents in an optimal storage in consideration of response time of a CDN(Content Delivery Network) provider cache server and at least one grouped browser cache with a wireless terminal to transmit corresponding contents. CONSTITUTION: A contents transmission system comprises a content server(150), a wireless terminal(110-1) and a provider name server(130). The content server stores contents in a cache server(140) storing data and one or more browser caches(120-2). The wireless terminal requests a IP address of a storage for transmitting the contents to the provider name server. The provider name server groups a browser cache of the wireless terminal and at least one wireless terminal browser cache adjacent to the wireless terminal into one browser cache group. The provider name server returns an IP address to the wireless terminal in consideration of the response speed between the wireless terminal and the cache server and the response speed of one or more the browser cache. The content transmission system selects an optimal storage between a cache server and a browser cache to respond to a content request.

Description

System and method for content delivery using cache server and browser cache}

The present invention relates to a content delivery system and method. In particular, when a content request is received from a wireless terminal, the browser cache of another wireless terminal adjacent to the browser cache of the wireless terminal is grouped, and the CDN (Content Delivery) storing the corresponding content. Network) A content delivery system and method using a cache server and a browser cache to allow a specific storage to be transmitted in consideration of response speeds of a cache server and a group of one or more browser caches and a wireless terminal. It is about.

In general, the number of contents (eg, videos, music, files, etc.) that a content provider (CP) provides to a client is very large. There is a heavy load for a web server to provide some or all of these to each of the multiple clients one-to-one. This is because a web server is connected to a single Internet Service Provider (ISP), whereas clients requesting content exist in multiple ISPs.

Therefore, traffic between ISPs increases exponentially as the number of content providers and clients increases, and transmission delay and / or transmission failure rate due to traffic congestion increases. In the worst case, the web server may fail over.

The CDN was introduced to overcome this problem. A CDN is a collection of content that is concentrated on a content provider's web server that is remote from clients, such as pictures, banners, video, or audio. Point-of-presence is stored in the host server which is widely distributed, and the client connects to the host server through the returned path by returning the path of the host server closest to the user when requested by the client. This service allows you to receive content. The host server is variously referred to as a cache server, a replication server, or a ghost server (hereinafter referred to as a cache server).

However, it is expensive and time-consuming for CDN operators to install and operate cache servers with capacity and response time that clients can satisfy in all regions of the world. In addition, the currently commercialized CDN service designates a cache server corresponding to the IP (Internet Protocol) address of the client, and if there is a content request from the client, checks whether the corresponding content is stored in the corresponding cache server, and is not stored. If not, it uses a method of sending a request to a content server.

However, there is a problem that if a specific content is not stored in the cache server corresponding to the client, content requests are crowded to the origin content server providing the content. . In addition, when the client is a mobile terminal capable of mobile communication, the response speed to the content request may be slower than that of the wired terminal. Therefore, a method for providing content requested from the client without adding a cache server is required.

The present invention has been proposed to solve the above-described problems. When there is a content request from a wireless terminal, the browser cache of another wireless terminal adjacent to the browser cache of the wireless terminal is grouped, and the CDN is stored. (Content Delivery Network) Content delivery using a cache server and a browser cache to allow the appropriate content to be delivered from the optimal storage in consideration of the response speed of a cache server and a group of one or more browser caches and a wireless terminal. Its purpose is to provide a system and method.

Content delivery method using the cache server and the browser cache of the present invention for achieving the above object, the storage step of transmitting and storing the content in the cache server and the one or more browser cache, the content server, the wireless terminal operators A request step of requesting an IP address of a storage to transmit the content to a name server, and the name server receiving the request includes one browser cache group of the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal. Returning the IP address of the storage to which the content is to be transmitted to the wireless terminal in consideration of the response speed between the wireless terminal and the cache server and the response speed between the wireless terminal and the one or more browser caches included in the group. A return step The.

In the content transmission method using the cache server and the browser cache of the present invention, the storing step is characterized in that for storing the content transmitted by the content server in response to a content request from a specific wireless terminal.

In the content transmission method using the cache server and the browser cache of the present invention, the storing step is characterized in that for transmitting and storing the content in advance having a relatively high request frequency compared to other content.

In the content transmission method using the cache server and the browser cache of the present invention, the storing step is characterized in that for transmitting the content expected from the wireless terminal in advance to store.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step, the wireless terminal and the at least one radio from a location information server that the service provider name server to determine the location of the wireless terminal using a GPS method; Receiving the location information of the terminal, characterized in that for grouping the at least one wireless terminal browser cache adjacent to the wireless terminal.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step, the wireless network from the location information server to determine the location of any wireless terminal based on the base station that the operator name server communicates with the wireless terminal Receiving location information of the terminal and the at least one wireless terminal, characterized in that for grouping the at least one wireless terminal browser cache adjacent to the wireless terminal.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step, the location information for the operator name server to triangulate using three base stations that can communicate with the wireless terminal to determine the location of any wireless terminal Receiving location information of the wireless terminal and the one or more wireless terminals from a server, and grouping the one or more wireless terminal browser caches adjacent to the wireless terminal.

In the content transmission method using the cache server and the browser cache of the present invention, in the returning step, the browser cache group is grouped to include the browser cache overlapping with other browser cache groups.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized by returning the IP address by measuring the response speed when the IP address request is received in the requesting step.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized by returning the IP address when the response rate is measured in advance and receives an IP address request in the requesting step.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized by returning the IP address of the storage in consideration of the load on the network.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized in that for measuring the response speed at a predetermined measurement time.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized in that for measuring the response speed according to a predetermined measurement period.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized in that the response speed is measured whenever the position of the wireless terminal is changed.

In the content transmission method using the cache server and the browser cache of the present invention, the returning step is characterized in that to return the IP address of the storage having the fastest response speed of the response speed.

Contents delivery system using the cache server and the browser cache of the present invention for achieving the above object, the cache to receive and store the content received from the content server and to transmit to the wireless terminal when the request for the content from the wireless terminal Upon receiving a request for an IP address of a server and a storage for transmitting the content from the wireless terminal, the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal are grouped into a single browser cache group. And a service provider name server that returns an IP address of a storage for transmitting the content to the wireless terminal in consideration of a response speed between the cache server and a response speed between the wireless terminal and the one or more browser caches.

The operator name server of the present invention for achieving the above object, the input and output unit for transmitting and receiving data, the response speed between the wireless terminal and the cache server storing the content and between the wireless terminal and one or more browser cache storing the content A database cache having response speed information, and a browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal when the IP address of the storage for transmitting the content is requested from the wireless terminal through the input / output unit. And a controller for grouping into groups and returning an IP address of a storage to which the content is to be transmitted to the wireless terminal in consideration of the response speed information held by the database unit.

The service provider name server according to the present invention for achieving the above object, the database unit holding the content information stored in the input and output unit, the cache server and one or more browser cache for data transmission and reception, and the content from the wireless terminal through the input and output unit When the IP address of the storage to be transmitted is requested, the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal are grouped into a single browser cache group, the content information held by the database unit is referred to, and the specific content is stored. And a control unit measuring a response speed between the stored storage and the wireless terminal to return the IP address of the storage having the fastest response speed to the wireless terminal.

According to the present invention, in consideration of the response speed between the cache server and the browser cache storing the content and the wireless terminal requesting the content, the content can be transmitted from an optimal storage having a better network condition or a faster response speed. Efficient use of the network and enhancement of user convenience are enabled.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

1 is a block diagram of a content delivery system according to an embodiment of the present invention. Referring to FIG. 1, in the content delivery system of the present embodiment, the first wireless terminal to the n-th wireless terminal 110-1, ..., 110-n, the first browser cache to the n-th browser cache 120-1, ..., 120-n), a service provider name server 130, a cache server 140, the content server 150 and the network 160 is configured to include.

The first wireless terminal to n-th wireless terminal (110-1, ..., 110-n) refers to a terminal such as a mobile phone, PDA, notebook, etc. capable of mobile communication with the server connected to the mobile communication network 160. When the first wireless terminal to n-th wireless terminal 110-1,..., 110-n receives a URL (Uniform Resource Locater) for requesting specific content into a browser, a DNS (Domain) Access to a business name server 130 having a function of a name server, and convert a domain name into an IP address of a content server 150 or a cache server 140 providing the corresponding content, and corresponding to the corresponding IP address. It connects to the server.

Unlike the case where the first wireless terminal to the n-th wireless terminal (110-1, ..., 110-n) is in data communication with the WAP server using the WAP (Wireless Application Protocol), the web does not use the WAP (web In the case of data communication with a server, for example, an IP address is assigned to each wireless terminal through a gateway GPRS support node (GGSN) or the like, and the communication with the corresponding web server can be performed. That is, when any one of the operator name server 130, the cache server 140, and the content server 150 is a web server that does not use WAP, the server and a specific wireless terminal to the data communication to the wireless terminal It can communicate through a gateway server that assigns an IP address or converts a protocol.

The first browser cache to the n-th browser caches 120-1, ..., 120-n are the first to n-th wireless terminals 110-1, ..., 110-n, respectively. The content store that corresponds to the browser. That is, when each browser receives the specific content from the content server 150 or the cache server 140, the corresponding radio of the first browser cache to n-th browser cache (120-1, ..., 120-n) Stored in the browser cache of the terminal, it is used to display through the browser window.

The operator name server 130 refers to a DNS (Domain Name Server) for converting a domain name into an IP address, and converts a symbolic name to a numeric address used by a machine to inform the name server. It is a kind. The operator name server 130 is a name server operated by a CDN provider for providing a CDN service and has IP address information of the cache server 140.

The cache server 140 is called, for example, a copy server or a ghost server, and is a storage that stores a copy of content data stored and managed by the content server 150. The cache server 140 quickly responds to a content request from any one of the first to n-th wireless terminals 110-1,..., 110-n.

The content server 150 stores a page and an object provided by the content provider, and then any one of the first wireless terminal to the n-th wireless terminal 110-1,..., 110-n. This server is responsible for responding to content requests from the server. That is, the content server 150 serves to transmit the content requested from a specific wireless terminal, and transmits and stores some of the content held by the content server 150 to the cache server 140. Through this, it is possible to quickly provide the content according to the request of the specific wireless terminal in the cache server 140.

The mobile communication network 160 includes data between the first wireless terminal to the n-th wireless terminal 110-1,..., 110-n, the service provider name server 130, the cache server 140, and the content server 150. It means a data communication network for transmission and information exchange.

When a URL for a content request is input to a browser of any one of the first to n-th wireless terminals 110-1,..., 110-n, the corresponding content is transmitted to the operator name server 130. You will be asked for the IP address of the storage to transfer.

For example, if the wireless terminal requesting a specific content is the first wireless terminal 110-1, the operator name server 130 uses the browser cache and the first wireless terminal 110-1 of the first wireless terminal 110-1. ) Group one or more wireless terminal browser caches that are locally adjacent to each other into one browser cache group. The reason for grouping locally adjacent browser caches is because the response speed between adjacent browser caches is generally faster. Groups of browser caches that are grouped may be grouped to include the browser cache, for example, overlapping with other browser cache groups.

At this time, if the browser cache belonging to the grouped group is the first browser cache (110-1) to the n-th browser cache (110-n) of the n-th wireless terminal (110-n) of the first wireless terminal (110-1). The operator name server 130 may respond to the response speed between the first wireless terminal 110-1 and the cache server 140, and the first wireless terminal 110-1 and the second browser cache to the n th browser cache 120-2. , ..., 120-n) selects a storage to transmit the content to the first wireless terminal (110-1) in consideration of the response speed between one or more browser cache, and the IP address of the selected storage to the first wireless terminal Will return (110-1).

In this case, when the operator name server 130 receives an IP address request from the first wireless terminal 110-1, the operator name server 130 selects the storage by measuring a response speed between each storage and the first wireless terminal 110-1. You can send the IP address of the repository. In addition, the operator name server 130 stores the corresponding information by measuring the response speed in advance, and when the IP address request is received from the first wireless terminal 110-1, the service is stored with reference to the stored response speed information. You can also select and send the IP address of the repository.

In the case of measuring the response speed in advance in the operator name server 130, for example, it is possible not only to set a specific measurement time and to measure the response speed at the set time, but also to set the measurement cycle of the response speed and Therefore, the response speed may be measured. In addition, the response speed may be measured whenever the position of the wireless terminal is changed.

When the operator name server 130 measures the response speed in response to an IP address request from the first wireless terminal 110-1 and returns an IP address of a storage to which content is to be transmitted, or with reference to the response speed information measured in advance In case of returning an IP address, an optimal storage is selected to return the IP address of the corresponding storage, and the optimal storage selection may be performed by selecting a storage having the fastest response speed.

In addition, the return of the IP address of the storage to which the content is to be transmitted, for example, the operator name server 130 considers the network load of each storage to load the relatively low load IP address to the first wireless terminal (110-1). It can also be done in a return manner.

The configuration and operation of the operator name server 130 according to an embodiment of the present invention will be described in more detail with reference to FIG. 2.

2 is a block diagram of the operator name server 130 shown in FIG. 1 according to an embodiment of the present invention. Referring to FIG. 2, the operator name server 130 according to the present exemplary embodiment includes an input / output unit 210, a controller 220, and a database unit 230.

The input / output unit 210 has an interface for transmitting and receiving data through the mobile communication network 160.

The database unit 230 stores a content information stored in the cache server 140 and content information stored in one or more browser caches among the first browser caches to the n-th browser caches 120-1, ..., 120-n. to be.

The controller 220 requests an IP address of a storage to transmit content from a specific wireless terminal among the first to nth wireless terminals 110-1,..., 110-n through the input / output unit 210. When receiving, referring to the content information retained by the database unit 230, the response speed between the storage having the content and the specific wireless terminal is measured, and the IP address of the storage having the fastest response speed is returned to the specific wireless terminal. Play a role.

In another embodiment of the present invention, the database unit 230 is the first wireless terminal to the n-th wireless terminal (110-1, ..., 110-n) and the response speed between the cache server 140 and the first wireless One of the first to n-th browser caches 120-1 to 120-n belonging to a different wireless terminal from each of the terminals to n-th wireless terminals 110-1 to 110-n. It holds response speed information between the above browser caches.

At this time, the control unit 220 via the input and output unit 210, the IP address of the storage to transfer the content from a specific wireless terminal of the first to n-th wireless terminal (110-1, ..., 110-n) When the request is made, the IP address of the storage to which the content is to be transmitted is returned to the wireless terminal by referring to the response speed information held by the database unit 230. As described above, the returned IP address may be the IP address of the storage having the fastest response speed.

Information held by the database unit 230 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 3 and 4.

3 is an exemplary diagram of a browser cache group table 310 and a link information table 320 stored in the database unit 230 of FIG. 2 according to an embodiment of the present invention.

Referring to the browser cache group table 310 in FIG. 3, the wireless terminal IP address and the browser cache group item are configured. In addition, the link information table 320 includes a browser cache group, a wireless terminal IP address, and a stored content item.

In the browser cache group table 310, a wireless terminal IP address item is a field including IP address information corresponding to each wireless terminal. The browser cache group item is a field including information of the browser cache group to which the browser cache corresponding to each wireless terminal IP address belongs.

In the link information table 320, the browser cache group item is an information field linked to each browser cache group item of the browser cache group table 310, and the link of the information is, for example, a linked list. list). The wireless terminal IP address item is a field containing IP address information of the wireless terminal belonging to each browser cache group. The stored content item is a field indicating information of content stored in the browser cache of each wireless terminal.

Referring to the browser cache group table 310, it can be seen that the browser cache of the wireless terminal having the IP address '111.111.111.110' belongs to the first group. In the link information table 320 linked to the first group item, IP addresses of the wireless terminal browser cache belonging to the first group are '111.111.111.110', '111.111.111.111', '111.111.111.112', .. It can be seen that.

At this time, the contents stored in the browser cache of the wireless terminal having the IP address of '111.111.111.110' are 'image1.gif' and 'image2.gif'. Similarly, the browser cache of the wireless terminal having the IP address of '111.111.111.111' The contents of 'image1.gif' and 'image3.gif' are stored, and the contents of 'image2.gif' and 'image3.gif' are stored in the browser cache of the wireless terminal whose IP address is '111.111.111.112'. It can be seen.

When the wireless terminal having the IP address '111.111.111.110' requests the IP address of the storage to transmit the content of 'image3.gif' to the operator name server 130, the received name server 130 stores the content. A response speed between a cache server 140 and a wireless terminal having an IP address of '111.111.111.110', a wireless terminal browser cache having an IP address of '111.111.111.111' and '111.111.111.112', and an IP address of '111.111. Measure the response speed between 111.110 'wireless terminals. The IP address of the storage having the fastest response speed is returned to the wireless terminal having the IP address '111.111.111.110'.

4 is an exemplary diagram of a response speed information table 400 stored in the database unit 230 of FIG. 2 according to an embodiment of the present invention. In this embodiment, the database unit 230 of the operator name server 130 further adds the response rate information table 400 as well as the browser cache group table 310 and the linked information table 320 shown in FIG. It includes, so that the control unit 220 of the operator name server 130 can be used to select a storage to transmit a specific content and return the IP address of the storage to the wireless terminal.

Referring to FIG. 4, the response speed information table 400 includes a wireless terminal IP address, a browser cache group, an IP address of another wireless terminal, and a response speed item.

The wireless terminal IP address item is a field containing IP address information of the wireless terminal requesting content.

The browser cache group item is a field including browser cache group information to which the browser cache of a wireless terminal having a specific IP address belongs.

The IP address item of another wireless terminal is a field including IP address information corresponding to the browser cache of the wireless terminal having a specific IP address and the browser cache of another wireless terminal belonging to the same browser cache group.

The response rate item is a field containing response rate information between each mobile terminal and the browser cache belonging to another wireless terminal.

Referring to the response rate information table 400, it can be seen that the wireless terminal browser cache of the IP address '111.111.111.110' belongs to the first group of the browser cache group. In addition, the IP address of the other mobile terminal browser cache belonging to the first group, such as the wireless terminal browser cache of the IP address '111.111.111.110', is '111.111.111.111', '111.111.111.112', ..., etc. .

Referring to the response speed item, the response speed between the wireless terminal of the IP address '111.111.111.110' and the browser cache corresponding to the IP address '111.111.111.111' is '1 ms' and the IP address '111.111.111.110' It can be seen that the response speed between the wireless terminal and the browser cache corresponding to the IP address '111.111.111.111' is '2 ms'.

For example, the service provider name server 130 receives an IP address of a storage storing specific content from a wireless terminal with the IP address '111.111.111.110', and the IP address of the browser cache storing the content is '111.111.111.111'. 'And' 111.111.111.112 ', the cache server storing the contents does not exist or the response speed between the cache server 140 storing the contents and the wireless terminal of the IP address' 111.111.111.110' is' 3 ms'. Suppose a case, the operator name server 130 is returned to the wireless terminal of the IP address '111.111.111.110', the IP address of the wireless terminal corresponding to the storage with a faster response rate, the IP address '111.111.111.110'. All.

A content providing process according to an embodiment of the present invention will be described in more detail with reference to FIG. 5.

5 is a flowchart illustrating a content transmission method according to an embodiment of the present invention. Referring to FIG. 5, first, specific content is transmitted from the content server 150 to the cache server 140 to be stored in operation S510. In addition, the content server 150 includes a second browser cache 120-2 to transmit and store the corresponding content to one or more browser caches (S520).

Content transmission and storage in the step (S510) and step (S520), the content server 150 may be made in a manner to store the content to be transmitted in response to the content request from a specific wireless terminal.

In addition, the content transmission and storage in the step (S510) and step (S520), the content of the content stored in the content server 150, the content of which the request frequency is relatively high compared to the other content or the content expected to request from the wireless terminal For example, before a request from a specific wireless terminal is received, the transmission and storage may be performed in advance.

Subsequently, the first wireless terminal 110-1 transmits the IP address of the storage to which the contents are transmitted to the first wireless terminal 110-1 among the storages in which the contents are stored in steps S510 and S520. Request to 130 (S530).

The operator name server 130 receiving the IP address request in step S530 may include the location information of the first wireless terminal 110-1 and the location of one or more adjacent wireless terminals from the location information server for determining the location of the wireless terminal. Receiving information and grouping them into the same group, taking into account the response speed between the first wireless terminal (110-1) and the cache server 140 and the response speed between the first wireless terminal and one or more browser caches storing the corresponding content ( S540, for example, returns the IP address of the wireless terminal to which the second browser cache 120-2 selected as the optimal storage belongs to the first wireless terminal (S550).

The location information server transmitting the location information to the operator name server 130 in step S540, for example, the position of the receiver in the range of approximately 50 ~ 100m using 24 Navstar satellites developed for the US Department of Defense GPS (Global Positioning System) method, which can know the base station to communicate with the wireless terminal, etc. to determine the location of the wireless terminal in the range of approximately 500 ~ 1500m (cell) method, or triangulation using three base stations By using a triangulation method such as to know the location of the wireless terminal can determine the location of each wireless terminal.

Considering the response speed in the step (S540), for example, after receiving the IP address request may be made in a manner of measuring and considering the response, or in advance by measuring in a predetermined manner in the operator name server 130 The response speed may be considered with reference to the stored response speed information.

At this time, the response speed is measured, for example, the operator name server 130 is the first wireless terminal 110-1 to the IP address of the cache server 140 or IP address information of the wireless terminal corresponding to each browser cache. The first wireless terminal 110-1 transmits a message for calculating a response speed to each of the corresponding storages to receive a response, and then transmits the round trip time (RTT) information to the operator name server 130. ) May be made in the manner of receiving.

In step S550, for example, the wireless terminal including the second browser cache 120-2 having the fastest response speed among the response speeds with the first wireless terminal 110-1 considered in step S540. The IP address information may be returned to the first wireless terminal 110-1.

In operation S550, the first wireless terminal 110-1 receiving the IP address corresponding to the second browser cache 120-2 connects to the corresponding IP address and requests content (S560). The content is received from the cache 120-2 (S570). Content transmission in step S570, for example, may be made in a peer to peer (P2P: Peer to Peer) manner.

According to the present invention, in consideration of the response speed of the cache server and the browser cache storing the content requested from the wireless terminal, it is possible to transmit the corresponding content in an optimal storage having a better network condition or faster response time. Through this, it is possible to quickly respond to the content request from the wireless terminal without expanding and operating the cache server for providing the CDN service, to distribute the content request to the cache server and content server, CDN service provider And user convenience.

1 is a block diagram of a content delivery system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a service provider name server shown in FIG. 1.

3 is an exemplary diagram of a browser cache group table and a link information table stored in the database unit of FIG. 2.

4 is an exemplary diagram of a response speed information table stored in the database unit of FIG. 2.

5 is a flowchart illustrating a content transmission method according to an embodiment of the present invention.

Claims (18)

A storage step of the content server transmitting and storing the content in a cache server which is a data storage and one or more browser caches; Requesting, by the wireless terminal, requesting an IP (Internet Protocol) address of a storage for transmitting the content to a service provider name server; And The provider name server receiving the request groups the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal into one browser cache group and between the wireless terminal and the cache server. A returning step of returning an IP address of a storage for transmitting the content to the wireless terminal in consideration of a response speed and a response speed between the wireless terminal and the one or more browser caches included in the group; Content delivery method using a cache server and browser cache comprising a. The method of claim 1, wherein the storing step And the content server stores the content transmitted in response to a content request from a specific wireless terminal. The method of claim 1, wherein the storing step A content transmission method using a cache server and a browser cache, characterized in that for transmitting and storing the content in advance, the request frequency is relatively higher than other content. The method of claim 1, wherein the storing step Content transmission method using a cache server and browser cache, characterized in that for transmitting in advance the content expected to request from the wireless terminal and stored. The method of claim 1, wherein the returning step The service provider name server receives the location information of the wireless terminal and the at least one wireless terminal from a location information server to determine the location of the wireless terminal using a GPS (Global Positioning System) method, the one or more adjacent to the wireless terminal A method of transmitting a content using a cache server and a browser cache, characterized in that the browser cache grouping of the wireless terminal. The method of claim 1, wherein the returning step The operator name server receives the location information of the radio terminal and the at least one radio terminal from a location information server for determining the location of any radio terminal based on a base station communicating with the radio terminal, the one adjacent to the radio terminal; A method of transmitting a content using a cache server and a browser cache, characterized by grouping the browser cache of the wireless terminal. The method of claim 1, wherein the returning step The operator name server receives the location information of the wireless terminal and the at least one wireless terminal from a location information server that triangulates using three base stations that can communicate with the wireless terminal to determine the location of any wireless terminal, the wireless terminal And at least one wireless terminal browser cache adjacent to the cache server. The method of claim 1, wherein in the return step The browser cache group is a content delivery method using a cache server and a browser cache, characterized by grouping to include the browser cache overlapping with other browser cache group. The method of claim 1, wherein the returning step And receiving the IP address request in the requesting step and measuring the response speed to return the IP address. The method of claim 1, wherein the returning step And measuring the response speed in advance and returning the IP address when the IP address request is received in the requesting step. The method of claim 9 or 10, wherein the returning step Returning the IP address of the storage in consideration of the load on the network, characterized in that the content transfer method using a cache server and browser cache. The method of claim 10, wherein the returning step The content transmission method using a cache server and a browser cache, characterized in that for measuring the response speed at a predetermined measurement time. The method of claim 10, wherein the returning step The content transmission method using a cache server and a browser cache, characterized in that for measuring the response speed according to a predetermined measurement period. The method of claim 10, wherein the returning step Content response method using a cache server and a browser cache, characterized in that for measuring the response speed whenever the location of the wireless terminal is changed. The method of claim 1, wherein the returning step And a cache server and a browser cache. The method of claim 1, wherein the IP address of the storage having the fastest response speed is returned. A cache server receiving and storing contents from a content server and transmitting the contents to the wireless terminal when a request for the contents is received from the wireless terminal; And Upon receiving a request for an IP address of a storage for transmitting the content from the wireless terminal, the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal are grouped into one browser cache group, and the wireless terminal and the cache are stored. A service provider name server that returns an IP address of a storage to which the content is to be transmitted to the wireless terminal in consideration of a response speed between servers and a response speed between the wireless terminal and the one or more browser caches; Content delivery system using a cache server and browser cache comprising a. Input and output unit for transmitting and receiving data; A database unit having response speed information between the wireless terminal and the cache server storing the contents and response speed information between the wireless terminal and the one or more browser caches storing the contents; And When the IP address of the storage to transmit the content is requested from the wireless terminal through the input / output unit, the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal are grouped into one browser cache group, and the database unit A control unit for returning the IP address of the storage to which the content is to be transmitted to the wireless terminal in consideration of the response speed information retained; Business name server that includes. Input and output unit for transmitting and receiving data; A database unit having content information stored in a cache server and at least one browser cache; And Upon receiving a request for an IP address of a storage for transmitting the content from the wireless terminal through the input / output unit, the browser cache of the wireless terminal and one or more wireless terminal browser caches adjacent to the wireless terminal are grouped into one browser cache group, and the database unit holds A controller for referring to the content information and measuring a response speed between the storage storing the specific content and the wireless terminal to return the IP address of the storage having the fastest response speed to the wireless terminal; Business name server that includes.

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