Wireless internet service method in gateway system

Details Wireless internet service method in gateway system Wireless internet service method in gateway system

2000-08-18

2004-08-10

Vanderpuye, Kenneth (Department: 2661)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S338000, C370S349000, C370S352000, C709S217000, C709S218000

Reexamination Certificate

active

06775291

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a wireless Internet service method, and in particular, to a wireless Internet service method in a gateway system, which provides wireless Internet services to a mobile terminal.
2. Background of the Related Art
Communication services ranging from a voice service to message and data communication services are continuously developing in a general radio communication network. Currently, there is a trend to provide improved Internet services to radio communication network subscribers through a combination of the radio communication and Internet called resources of information, which will provide access to an unlimited additional services to the subscribers.
Further, a number of mobile communication subscribers is on the increase, and there are various kinds of mobile terminals. While common radio communication network carriers provide a variety of additional services to the subscribers, related art mobile terminals are not capable of receiving all the services including Internet service because of a shortage of functions. Accordingly, these related art mobile terminals can only use a specific service even if the additional services are improved.
Meantime, wireless application protocol (WAP) Forum is a leading one of the many standardizing processes being processed for the Internet services using the mobile terminal in the radio communication network. To use the Internet service using the mobile terminal, the mobile terminal is required to provide a WAP standard, that is, a WAP protocol and a WAP browser function. Accordingly, a related art radio communication network subscriber who uses the related art mobile terminal, which cannot support the WAP standard, should replace his/her mobile terminal to receive the Internet service.
This situation will now be described in additional detail with reference to
FIG. 1
that illustrates a related art configuration for accessing the Internet. In case of the Internet service supported by the WAP Forum, a mobile terminal
11
providing the WAP browser function and a web server (WAP service)
14
are connected to each other through a radio communication network and Internet (Intranet). As shown in
FIG. 1
, the radio communication network uses a Short Message Service (SMS) interface supporting communications based on the WAP protocol while the Internet (Intranet) uses an interface supporting communications based on Hyper Text Transfer Protocol (HTTP). Accordingly, connection of the mobile terminal
11
and web server
14
requires a WAP gateway system
13
that furnishes a protocol conversion function for converting the WAP protocol of the radio communication network into the HTTP of the Internet and vice versa, and a function for encoding/decoding Wireless Markup Language (WML) contents for communication with the radio communication network.
In the case of Wireless Telephony Application (WTA) service
12
, it provides additional services closely related to telephone communication while carrying out HTTP communication with the WAP gateway system
13
. When used as a web server, however, the WTA server
12
has a special application process having an interface with the radio communication network mounted thereon to operate a user agent for WTA service in the WAP browser of the mobile terminal
11
.
FIG. 2
shows a related art wireless Internet service processing procedure according to the standard defined by the WAP Forum. After beginning, a corresponding radio communication network subscriber selects an item for Internet access using the mobile terminal
11
(Step S
21
). Then the WAP gateway system
13
provides the initial menu for the Internet service to the mobile terminal
11
(Step S
22
). The subscriber inputs or selects a Uniform Resource Locator (URL) for searching for desired information according to the initial menu (Step S
23
). Here, binary WML contents are used between the mobile terminal
11
and WAP gateway system
13
.
Accordingly, the WAP gateway system
13
decodes the binary WML contents received from the mobile terminal
11
into WML contents, and then transmits the decoded WML contents to the web server
14
constructed of Handheld Device Markup Language (HDML) or WML using the HTTP protocol through the Internet (Step S
24
). Additionally, the WAP gateway system
13
encodes the WML contents downloaded from the web server
14
into binary WML contents (Step S
25
) according to the corresponding requested information. The WAP gateway system
13
then sends them to the mobile terminal
11
through the radio communication network using the WAP protocol (Step S
26
). Upon reception of the encoded binary WML contents from the WAP gateway system
13
, the mobile terminal
11
converts the binary WML contents, which is the information the subscriber requests, into a form capable of being visually confirmed and displays it on the display thereof (Step S
27
). The mobile terminal
11
provides wireless Internet service that furnishes subscriber information requests and displays the functions using the WAP protocol and WAP browser function.
As described above, the related art radio communication network that provides Internet services to a mobile terminal has various disadvantages. To accept the wireless Internet service, as described above, most of the related art radio communication network subscribers should replace their current mobile terminals being used with new ones because the mobile terminals are required to furnish the WAP protocol and browser function.
The above references are incorporated by reference herein where appropriate for appropriate teachings of additional or alternative details, features and/or technical background.
SUMMARY OF THE INVENTION
An object of the invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
Another object of the present invention is to provide a wireless Internet service method in a gateway system that stores and manages the latest URL web contents in a URL memory using a Time To Live (TTL), expire time and last modification time of URL web contents to provide quick Internet service for the latest web contents when a mobile terminal supporting no WAP standard requests information.
Another object of the present invention to provide a wireless Internet service method in a gateway system that stores and manages the latest URL web contents in a URL memory using a TTL, expire time and last modification time of URL web contents to inform a subscriber when bookmarked URL information defined by the subscriber is changed.
To accomplish at least the above objects in a whole or in part according to the present invention, there is provided a wireless Internet service providing method in a gateway system having a conversation function according to short messages, the method including storing and managing the latest URL web contents in a URL memory using a TTL, an expire time and a last modification time for URL web contents; parsing web contents corresponding to URL information requested by a mobile terminal and storing them in a cache having the form of a card; and transmitting the data stored in the cache to the mobile terminal through I-SMSC.
To further achieve the above objects in a whole or in part accordingly to the present invention, storing and managing the latest URL web contents in a URL memory includes sequentially searching records of the URL memory to confirm if there is a record whose expire time has been passed or whose TTL is not available; when there is the record whose expire time has been passed or whose TTL is not available, performing URL access through the Internet to collect the latest URL web contents corresponding to the record; and updating the expire time of a record updated into URL web contents whose expire time is defined among the collected URL web contents.
To further achieve the above objects in a whole or in part accordingly to the present invention, parsing and storing URL web contents corresponding to U

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