KR100641194B1 - Web data caching method based on user preference - Google Patents

Abstract

The present invention relates to a web preference caching method based on user preferences. In the case of using the Internet using a terminal capable of accessing the Internet by using a conventional broadband network and a narrowband communication network at the same time, the present invention has a low royalty fee and a high speed communication network. However, since narrowband networks are very expensive to use and only allow low-speed communications, users are forced to continue browsing while leaving the broadband area and use the narrowband network. There was a problem that the search time is long and the cost is increased. In view of the above problems, the present invention provides a user terminal in which a terminal for accessing the Internet using a wideband and narrowband network is detected and a condition for vertical handoff is performed from a wideband network to a narrowband network due to a change in communication environment of the terminal. The information about the user's preferred website designated by the user is cached in advance through the broadband network, and then handoffed to the narrowband network, and the webpage or site related to the information already cached by the user in the narrowband network. When you browse, you can provide pre-cached content without actual access, so you can quickly and inexpensively save users' favorite web pages or sites while suppressing the use of narrowband communication network that causes inconvenience to users due to high cost and slow speed. There is an effect that can be displayed.

Description

Web data caching method based on user preference {WEB DATA CACHING METHOD BASED ON USER PREFERENCE}

1 is a conceptual diagram illustrating a general vertical handoff process.

Figure 2 is a flow chart showing the operation of the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Access Point 15: Hot Spot Area

20: base station 30: terminal

The present invention relates to a web data caching method based on user preference. In particular, when a mobile communication terminal capable of using both a broadband network such as a wireless LAN and a narrowband network using a mobile communication system moves from a broadband network to a narrowband network, The present invention relates to a user preference-based web data caching method that provides the cached web data when the web data is requested in a narrowband network after caching the web data set in advance.

As the number of users of mobile communication terminals has increased and mobile communication methods have been developed in various ways, mobile communication terminals are growing as devices capable of various types of data communication, not just voice calls. In particular, thanks to the explosive spread of the Internet, Internet access through mobile communication terminals has already become one of the basic conditions of mobile communication terminals.

A representative technology for accessing the Internet of the mobile communication terminal is a WAP (Wireless Application Protocol) technology of a proxy function that connects a wireless communication network and the Internet (especially, the World Wide Web: WWW).

The WAP largely serves as a protocol gateway and encodes / decodes contents. The WAP protocol stack is converted into a WWW protocol stack through a protocol gateway function, and a WAP content is reduced through a content encoding / decoding function. Encoding / decoding reduces the load on the network.

Since WAP supports various communication methods (Bearer), it supports not only time division multiple communication (TDMA) and code division multiple communication (CDMA) but also European standard Global Communication for GSM (GSM) communication.

Recently, however, the mobile communication terminal function has been integrated with a personal digital assistant (PDA) so that a web page using the WWW protocol can be used as a PC through the high processing performance of the personal digital assistant. In addition, recently, a wireless LAN function is mounted on the mobile communication terminal to access the Internet using a high speed broadband communication network in an area where a broadband communication network is implemented, and to exit the area using an existing narrowband communication network. Also known as a hybrid wireless terminal that can be connected has emerged.

In addition, the use of Vertical Handoff, a handoff technique between base stations using different wireless network technologies, can provide a seamless Internet connection by changing a communication network that is not recognized by a user.

1 illustrates a case where a general vertical handoff scheme is implemented between a broadband wireless communication network and a narrowband CDMA network. This is the case where a service provider providing broadband and narrowband services allows a user to support handoff processing by preferential authentication through a single authentication process through a single or mutual agreement.

If the user terminal 30 is a hybrid terminal that supports both broadband (wireless LAN) and narrowband (CDMA module), it is connected to the access point (AP) 10 in the hot spot area 15 to connect the Internet. It can be used at high speed, and when the hot spot area 15 is moved (30 → 30 '), handoff is performed to the narrowband communication network in consideration of power efficiency and detection time of the base station (receives an allocated data channel of the narrowband network). TCP session reset).

In general, in contrast to low-cost, high-speed broadband networks, narrowband networks are very expensive and can only communicate at low speeds, so users are forced to continue browsing while leaving the broadband area and staying connected to the Internet. It costs money and slows down the refresh rate.

However, to improve this, only the efforts to speed up the entire narrowband network are available, and there is no way to improve it in the current system state.

In view of the above problems, in the present invention, a terminal capable of accessing the Internet using a wideband and narrowband network detects a condition in which a vertical handoff is performed from a wideband network to a narrowband network due to a change in the communication environment of the terminal. If the information on the user's preferred website designated by the user is cached through the broadband network and stored in advance, a handoff is performed to the narrowband network. The webpage related to the information already cached by the user in the narrowband network is performed. The purpose of this article is to provide a user preference-based web data caching method that saves time and money by providing pre-cached content without actual access when browsing a site.

The present invention for achieving the above object comprises the steps of authenticating by connecting a mobile communication terminal that can use both broadband and narrowband network to the broadband network; Using the Internet as the broadband network; If the user intends to enter a narrowband network service area out of the broadband network area or the communication environment is changed, pre-receiving Internet information designated by a user using the broadband network and storing it in a cache area; Performing handoff when moving to the narrowband network service area; And providing data in the cache area when requesting the Internet information stored in the cache area in advance in the narrowband network.

And examining a vertical handoff occurrence condition to detect a case in which the user intends to enter a narrowband network service area out of the broadband network service area.

Receiving the Internet information designated by the user in advance and storing in the cache area, further comprising the step of caching updated information of the preferred web page or website based on user preference information including bookmark or cookie information. It is characterized by including.

The present invention as described above will be described in detail with reference to the accompanying drawings.

FIG. 2 is a flowchart illustrating an operation of an embodiment of the present invention, in which a mobile communication terminal capable of using the Internet by simultaneously connecting a broadband (wireless LAN) system and a narrowband (mobile communication network) system to a broadband communication network region. In the case of moving to an area where only a narrowband network service is available, the user's preferred website information is cached before leaving the broadband system for more efficient internet use.

In other words, the vertical handoff between the broadband network and the base station of the narrowband network is performed without the user's knowledge in accordance with the regional movement of the terminal. For this purpose, as described above, the service provider and the narrowband network are provided. The service providers must make the same or a predetermined agreement and make mutual handoff possible by collective authentication procedure.

In general, when a user receives an HTTP or XML data through a browser and displays it on the screen, the information is stored as a cache data in a specific place, so that the same data is not downloaded again on subsequent connection. I do not need to. Also, for frequently accessed web pages, information such as cooky, which is registered and managed in individual bookmarks / favorite or provided in the browser, is stored in a temporary storage place to help the next access.

In other words, the cache function in such a web environment is already widely used. However, in the conventional case, the contents stored in the cache are provided only when offline browsing is performed, and the newly updated contents are not known, and the updated contents are selectively received by comparing the cache information with the information to be received online. Because of the procedure, if a connection cannot be made online, the contents of the cache are not displayed and only the contents of the connection cannot be provided.

Therefore, in the present invention, when a terminal exists in a service area of a broadband communication network capable of high-speed data transmission, data of a specific site can be downloaded without burden of cost or speed. Taking into consideration that the terminal can be recognized by the mentioned bookmark or cookie information, if the user wants to leave the broadband network service area, the site or webpage that the user has registered as a bookmark or the cookie information is registered without the user's knowledge It automatically downloads the updated information about and stores it in the cache area. If the user wants to browse the pre-cached content when the user is provided with the internet service through the narrowband communication network, the site or Without accessing a web page, By providing the cached information instead, it is possible to reduce the information display time and to suppress the cost, thereby greatly improving the user's convenience.

Let's summarize this through the flow chart shown.

First, a user connects to a broadband communication network using a terminal capable of using both broadband and narrowband, and performs authentication. In this case, since it is a case of accessing a wireless LAN network, proper authentication is performed after accessing an access point in a hotspot area.

If the authentication is successful, it is possible to browse the Internet at high speed through the wireless LAN network.

If the user wants to leave the broadband service area, the automatic cache function is performed. In order to detect an operation outside the broadband service providing area, a vertical handoff detection signal obtained through factors such as power efficiency and network search time may be used.

When the automatic cache function is performed, the corresponding function may be automatically performed according to a user selection, or the user may be asked whether the automatic cache function is performed.

The automatic cache function is performed based on the web page or website information separately selected by the user, the web page or website information registered in the bookmark, the website information registered in the cookie, and the like. Note that it may be implemented only at the time of the city, or may be additionally performed by user designation, time setting by an update period, and time setting by staying in a broadband network.

In addition, in order to cache at a high speed, small-capacity text information is preferentially cached, and if there is time, priority is made to cache pictures or multimedia information, and caching according to the priority is more effective. Information can be collected.

When the web data caching according to the user preference is completed before the handoff in the above manner, the actual handoff is performed. If the caching time is insufficient due to signal loss or power efficiency reduction, caching may be stopped by handoff. However, if more automatic caching is performed according to the time spent in the periodic or broadband service area as described above, there is usually not much to download by this handoff.

If the user performs handoff as described above and maintains the Internet connection using a narrowband communication network service, if the user wants to access a preferred web page or website, the cached content is preferentially provided. B) Websites should be handled in the usual way through the narrowband network. In this case, when the content of a predetermined web page or site is displayed as cached content without access, if the cached data is collected before a predetermined time, the user may be asked whether or not to confirm the update using a narrowband communication network.

As described above, by caching the user's favorite webpage or website without the user's knowledge while using the broadband service and caching up-to-date contents, even if the user handoffs to the narrowband network, Therefore, if you have the site information cached without your knowledge, you can provide the contents of the site instead of direct access. In other words, by performing an offline search for a specific site while online, and caching during the broadband service, the user can greatly reduce browsing time and cost.

As described above, in the user preference-based web data caching method of the present invention, in a terminal that can access the Internet using a wideband and narrowband network, a vertical handoff is performed from the broadband network to the narrowband network due to a change in the communication environment of the terminal. When a condition to be detected is detected, information about the user's preferred website designated by the user is cached through the broadband network and stored in advance before handoff to the narrowband network. The information already cached by the user in the narrowband network When browsing a web page or site related to the web site, the user can provide the pre-cached content without the actual access, thereby suppressing the use of a narrowband network that causes inconvenience to users due to high cost and slow speed, while maintaining the user's preferred web page. It has the effect of displaying my site quickly and inexpensively.

Claims (6)

Authenticating by connecting a mobile communication terminal capable of using both a broadband network and a narrowband network to the broadband network; Using the Internet as the broadband network; If the user intends to enter a narrowband network service area out of the broadband network area or the communication environment is changed, pre-receiving Internet information designated by a user using the broadband network and storing it in a cache area; Performing handoff when moving to the narrowband network service area; And providing data in the cache area when requesting Internet information stored in the cache area in advance in the narrowband network. The method of claim 1, wherein the wideband network is a wireless LAN communication network, and the narrowband network is a mobile communication network. [2] The web of claim 1, further comprising: checking a vertical handoff occurrence condition to detect a case where a user intends to enter a narrowband network service area out of the broadband service area. Data caching method. The method of claim 1, wherein the receiving of the Internet information designated by the user in advance and storing in the cache area comprises updating updated information of a preferred web page or website based on user preference information including bookmark or cookie information. Caching them further comprising caching the user preferences web data caching method. The method of claim 4, wherein the updated information is downloaded in a priority manner of downloading text information and then downloading files of a large size, such as a photo or a multimedia. The method of claim 1, wherein the receiving of the Internet information designated by the user in advance and storing in the cache area further comprises the step of periodically or by the user's designation, the web data caching preferences Way.

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