KR20010074186A - The Method of Contents Delivery Network service for Wireless - Google Patents

Abstract

The present invention is a concept in which the CDN service provided on the wired Internet is extended to the wireless network. For wireless internet service, each wireless network has a wireless proxy server that converts according to Wireless Inetrnet Device when connected to various wireless internet devices in wireless internet network, which is configured by interworking with wired internet network in each country and region. The content transformation server, which changes the format of the content that operates in any Markup Language on the wireless to XML, is located in the wireless node of each country and region in one module form.

Therefore, when the subscriber accesses such access node, check the subscriber's information (IP-Address, Domain Name, Socket information), check the neighbor node registered in the DB of GLB server in the center, and connect the neighbor node. Enables you to receive services through In this case, the subscriber can see the data quickly and in case of failure of a specific node, it is possible to connect to another wireless node by checking it on the GLB server. Another characteristic part is the part that can check the information of subscribers who access each region by country and show contents of different contents even if they access with the same domain name when accessing by region. If there is no DB for the neighboring node when connecting to the GLB server with the Wireless Internet Device, check the node closest to the subscriber's access location through the agent server installed in the wireless node of each region and check the information on the GLB in the center. When the subscriber located in another same area connects to the server and checks the information in the DB of the GLB server, the subscriber can be connected to the nearest wireless node. In addition, Agent server located in each node of each country and region checks subscriber's IP address every predetermined time determined by GLB server of center and checks the fastest and closest node and updates to DB in GLB server. It is possible to access through the node in the normal operating area, avoiding the node of the subscriber, so the subscriber cannot be inaccessible due to the failure. In addition, for billing for content providers who want to pay on the Internet, the agent transfers raw data about billing to the billing server in the center.

Description

The method of contents delivery network service for wireless}

The present invention extends the CDN service, which is implemented only on the wired Internet, to the wireless network. When using the wireless Internet service, the GLB server tries to use the contents service on the wireless internet with the wireless internet device held by the subscriber. The present invention relates to a method of enabling a subscriber to access by identifying nodes in each country and region closest to the wireless subscriber. The wireless CDN service provides a function to reduce the load on the traffic that is concentrated in one center in the center and the proxy and content modification servers that change the format according to the wireless internet device for the wireless internet when many subscribers access at the same time. In case of failure of a specific wireless internet node, it is possible to access by bypassing the wireless internet node installed by each country and region. Currently, when accessing the wireless Internet using the Wireless Internet Device, when the failure of the part linked with the wired Internet occurs, the user cannot use the Internet wirelessly until the failure is repaired. Even if the route is distributed, the subscriber can not identify the closest and fastest route at the time of access. Therefore, there is a problem that the access speed is slow or cannot be accessed at the time of access through the wireless Internet node.

In order to solve the above problems, the present invention uses wireless XML and Markup Language to change the format according to the Wireless Internet Device for the wireless Internet to the Internet Node for wireless access distributed by country and region. Distributing the servers to be modified according to regions, and when the subscriber connects to the wireless internet, the wireless GLB server included in the present invention is placed in the center. Thus, when the subscriber connects to the wireless internet, the information sent by the wireless internet device is sent from the GLB server. Provides information on the wireless internet nodes of each country and region possessed by the DB of the GLB server to the wireless internet device of the subscriber, and accesses the wireless internet nodes by country and region through the nearest and fastest route. It is possible to view the contents that subscribers need and according to the system and network of CP The purpose of this is to allow the CP to select the application for the wireless CDN by separating into eight kinds of functions. In addition, the purpose is to bring contents contents of CP differently according to access node.

1 is a configuration diagram of the current wireless Internet service

2 is a conceptual diagram for applying a wireless CDN

3 is a diagram illustrating the application of a wireless CDN between a GLB server and nodes in each region.

4 is a flow chart of connection via a Wireless Internet Device

5 is an overall flow chart for wireless CDN operation.

<Description of the code | symbol about the principal part of drawing>

S101: Wireless Internet Device S103: Wireless Service Provider

S205: Send to Billing Collector S503: Send Domain Name

S514: Content Reformat

In order to achieve the above object, the present invention provides a wireless proxy and a server for content modification installed in each country and region when users want to use the wireless Internet service in order to use the wireless CDN service efficiently. The first step is to install the GLB server in the center so that it can be installed by country and region and connected to the fastest and nearest wireless internet node. When connecting to the GLB server in the center, identify the fastest and nearest access node where the subscriber is located. Step 2, which transmits the information about the wireless proxy server in the node to the subscriber's wireless internet device. The information transmitted from the GLB server to the subscriber's wireless internet device is connected to the wireless proxy server on the wireless internet node in each region. Step 3, when requested to the server for content modification via the connected wireless proxy server Markup La Step 4 of reformatting data on the Internet to the wireless by XML which is nguage, and also checks the nearest and closest node of subscriber by using agent server installed in each node of each region and sends the data about it to the center. In step 5, data can be periodically sent to the GLB server located and billing collector server in the center can be sent to the Billing Collector server in the center to store the information on the DB and provide billing data for billing. The wireless internet device may use a content service.

The present invention distributes the wireless proxy and markup language that changes the format according to the wireless internet device for wireless internet to the wireless access internet nodes distributed in each region by XML to reformat the modified servers according to the wireless. When the subscriber is connected to the wireless Internet, the wireless GLB server included in the present invention is provided. By this, when the subscriber accesses the wireless internet, the information transmitted from the wireless internet device from the GLB server is stored in the network of the GLB server. It provides information about wireless internet nodes in each region distributed in subscriber's wireless internet device for access through the nearest and fastest route in the area where the subscriber's wireless internet device is located and wireless internet device provides the information. Access to nodes for wireless Internet distributed by region by It is an object to the wireless subscriber to be able to see the Contents in need.

In the case of FIG. 1, when a subscriber accesses a wireless Internet network using a wireless Internet device (S101), the subscriber is connected through a base station of each region established by a wireless communication provider and the Internet It is configured to use the wireless Internet service through a line connected to the network. If there is no way to bypass even when there is a failure of the Internet line connected to the base station or when the traffic is congested, it is composed of a type of network in which the failure is known to the customer. In addition, when accessing a wireless Internet network through a network of a wireless communication service provider (S103), the gateway device (S104) may be used to match the Markup Language used on the existing wired Internet owned by the wireless communication service provider to the Wireless Internet Device. The wireless communication service provider and the CP service provider composed of a dedicated line (S101a) can be classified and connected to the CP service provider on the Internet. Most CPs are connected to the Internet and can check the specific URL of the CP service provider to provide the contents of CPs. (S102) In addition, CP service providers, which are composed of wireless communication service providers and private lines, are connected to the Internet, and the network is configured to provide services by linking contents not owned by CP and gateway on the Internet. (S101b).

2 is a conceptual diagram for applying a wireless CDN.

In order to use the wireless CDN service, when a subscriber's query enters the center, GLB server that can check the information about this and resolving the domain name on the subscriber's Wireless Internet Device should be located and the agent server installed in each region. In subscriber's access, it is necessary to check the node closest to the subscriber's fastest path and deliver information about it to the GLB server in the center periodically, and when the subscriber accesses contents on the Internet through the node for CDN, In the case of the information, it is possible to deliver to the billing server in the center through the agent server located in each country, region. The following is a conceptual diagram of the subscriber access through the present invention in detail.

When subscribers in each region (S201, S201a) are operated by the wireless service provider (S202), access the GLB server in the wireless data center (S206) (S204) to obtain information about the IP address of the subscriber. Proxy Server that checks the fastest and closest node in the location where it is located in the DB, and shows the contents according to the type of terminal possessed by the subscriber on the wireless Internet node (S203, S203a, S203b) in each region. And (S209) Content transformation server for content on CP on the Internet (S208, S208a) via the Internet (S207) and receiving data through the Internet to change the data required by customers to Markup Language using XML. In addition (S210) In addition, by placing a cache server to keep the content on the Internet repeatedly provided in the cache server, when the subscriber accesses through the cache server (S211) fast and stable The service can be serviced through the wireless Internet, and the subscriber can identify the nearest and fastest node using the ping or hop count to the wireless Internet device of the subscriber who connects the agent by each node (S212). It can be used as data by sending it to the DB server for GLB. In this agent server, when the subscriber accesses the CP on the Internet, the subscriber transmits the information about the CP contents to the billing collector in the center (S205) and delivers the raw data about the billing to the billing center to give the CP operator It is a method that can be configured in the form that Billing of the desired form is possible.

3 is a block diagram of a GLB application method between a GLB server and an Agent server in a wireless Internet node.

It is necessary to maintain DB about domain information about GLB server to apply GLB, and to secure or update such DB, organic data should be transmitted between GLB server at center and Agent server at node. If the subscriber describes the flow, the GLB server in the center provides information on the client IP connected to the agent server in the node and requests information about this client.The agent server in the node pings the target client. Or check the Hop Count and receive the result, Agent server in Node sends the information about the verified client to GLB server in the center and saves the result in DB server again in this GLB server When the client brings the information about the same area, check the DB and check the nearest node or the fastest node to access the node. It can be configured in a form that provides a path. And when the client accesses through a certain region, the part about how to provide contents to the subscriber as soon as possible is divided into various types of procedures for processing each domain name between each wireless internet node and GLB server. The processing method can be divided into: 1) pure DNS processing 2) Static processing-> DNS processing 3) HOP (Dynamic) processing-> DNS processing 4) Ping (Dynamic) processing-> DNS processing 5) Static processing- > Hop (Dynamic) processing-> DNS processing 6) Static processing-> Ping (Dynamic) processing-> DNS processing 7) Hop (Dynamic) processing-> Static processing-> DNS processing 8) Ping (Dynamic) processing-> Static Processing-> It can be applied according to the network and system environment of CPs by dividing into 8 types of DNS processing, and can be applied differently according to the selection of policy method for efficient operation of CP.

Figure 4 is a flow chart for the subscriber to access the nodes of each region in the present invention to view the contents. First, the subscriber reformats the Markup Language for the wireless use of XML through the wireless proxy that changes the format to the wireless terminal installed in the node via the wireless communication device's IWF using the wireless internet device. Upon requesting the server, the content variation server reads the cached contents through the cache server installed in the same node, and reformats the Markup Language using XML from the DB installed on the content variation server for wireless use. It consists of a flow that provides content to.

5 is an overall flowchart of the operation of the wireless CDN in the present invention. When the subscriber attempts to connect using the Wireless Internet Device (S501) and accesses the wireless network (S502), when the IWF and PPP connection that the wireless carrier has are established, and transmits the Domain Name to be accessed from the Wireless Internet Device (S503). ) If you access the GLB server in the center (S504), check the information on the connected wireless Intrernet Device (S505) and search the DB included in the GLB server (S506) to find the data of the IP address of the subscriber. If there is an IP address when the subscriber accesses in the DB, check the fastest and nearest node where the subscriber is located and check the IP address of the wireless proxy server installed in the node. (S508) the subscriber's Wireless Internet Device connects to the node with the IP address specified (S509) and connects to the wireless proxy server installed here. When the user requests the contents (S510) and requests the contents (S511), the node is installed in the node and connected to the content conversion server (S511). The function of the contents conversion server is connected to the CP server on the Internet and the CP has Gatherer for importing content and imported data is configured to view Markup Language by wireless format on Wireless Internet Device through Reformatter by XML. If there is desired data in cache server, content conversion server checks the content (S513). Reformat (S514) to provide the contents to the subscriber's Wireless Internet Device (S515). Also, if the data is not in the cache server, to access the CP's site on the Internet (S516) to provide the desired contents to the subscriber (S517). Import the content and reformat it and provide it to the subscriber's Wireless Internet Device. Also, if the subscriber information is not included in the GLB server when the subscriber accesses, check the contents information of the CP through the wireless proxy server (S521) and the content conversion server (S522) in the center of the site that the subscriber attempted to access. . At this time, when the GLB server in the center requests each agent server in each regional node (S523), the agent server in each country and region node is driven (S524). Check the information on the distance and response time by ping or hop count with IP address among the information provided by the wireless Internet device of the subscriber (S525) and transmit the result data to the GLB server in the center. And (S526) is a flow chart of the form that can be applied to the subscriber using the same IP Block by storing the received result value in the DB for GLB server (S527).

By checking the information of the distributed wireless Internet nodes in each region from the GLB server located in the center, the user can access the subscribers by checking the quickest and closest node where the subscriber is located. As the data of CP can be viewed, it is possible to reduce the usage fee for wireless data use.In the case of wireless Internet communication service providers, it is quick to subscribers with the increase of Internet traffic and the minimum investment cost for equipment. It is possible to provide high quality service, and when the subscriber tries to access the wireless internet node with the GLB server, it finds and checks the fastest and closest node among the nodes in each region, so even in case of failure in a specific area By bypassing the failure, you can make the connection available. Therefore, it is possible to provide a service that can be connected to a stable service, and it is possible to provide a part of billing for CP providers who are currently struggling with billing, which is located on the wireless Internet, at a low price.

Claims (5)

When accessing via wireless internet network, the first step is to check wireless internet device information (IP address, domain name, socket information, etc.) at GLB server in the center. Step 2, which transmits the access information to the wireless Internet device of the subscriber by checking the fast and near wireless node, and step 3, which is automatically connected to the wireless proxy server of the fastest and closest node with the access information provided from the GLB server, and contents on the Internet. 4 steps of reading the data from the cache server, 5 steps of modifying the Markup Language by the content modification server installed in the access node, and 6 steps of transmitting and terminating data to the subscriber's Wireless Internet Device. . How to provide contents to subscriber's Wireless Internet Device by changing contents of contents according to Client IP group or Wireless Internet Device specification when connecting by GLB server by Node separated by each region. In FIG. 2, a cache server for each wireless Internet node enables a user to quickly view desired contents by a cache server on each node when connected through a wireless internet device connected wirelessly. In FIG. 2, when a subscriber accesses a CP on the Internet from an agent server located in each country and region, the subscriber transmits information on the use of CP contents to the billing collector in the center to deliver raw data on billing to the billing center. To configure the billing of the CP operator as desired. In FIG. 3, eight types of processing procedures for applying a CDN are provided according to the operation state of the system possessed by the CP and the state of the network configured by the CP, thereby providing contents according to the situation of the CP.