KR100636109B1 - Method for using web services and method for providing web services in wireless internet system - Google Patents

Abstract

The present invention relates to a method of using a web service on the Internet through a mobile communication terminal, comprising: (a) the method of using a web service provided by a web server in a wireless internet system using a web service through a mobile communication terminal; Driving a browser for supporting a web service through a mobile communication terminal and outputting an initial screen of the browser; (b) selecting an original document item from a menu provided by the mobile communication terminal to request a copy of the original document provided by the web server corresponding to the document output in a simplified form on the screen of the mobile communication terminal; Receiving user input; (c) constructing an original document request message requesting a copy of the original document and transmitting it through a mobile communication network; And (d) receiving a response message notifying a result of the original document request message transmitted in step (c) through a mobile communication network, and outputting a result notified through the response message on a screen of the mobile communication terminal. Characterized in that it comprises a step.

According to the present invention, since the original document of the HTML format provided by the web server can be obtained through the mobile communication terminal, inconvenience caused by the user due to the limited resources of the mobile communication terminal when using the wireless Internet can be reduced.

Description

Method for using web services and method for providing web services in wireless internet system

FIG. 1A schematically illustrates a structure of a wireless Internet system using a web service on the Internet through a mobile communication terminal according to an embodiment of the present invention.

FIG. 1B schematically illustrates an internal configuration of a gateway in the wireless Internet system of FIG. 1A according to an embodiment of the present invention.

2 is a flowchart illustrating a method of using a web service through a portable communication terminal in the wireless Internet system of FIG. 1A according to an embodiment of the present invention.

3 is a flowchart illustrating a web service providing method of a web server through a gateway in the wireless internet system of FIG. 1A according to an embodiment of the present invention.

The present invention relates to a web service on the Internet, and more particularly, to a method of using a web service on the Internet through a mobile communication terminal.

Due to the ease of use of the portable communication terminal, its market is rapidly expanding in Korea and around the world. Initially, the market for portable communication terminals, beginning with analog cellular phones, is expanding through digital cellular phones to personal communications services (PCS) phones. With the development of mobile communication technology, it is possible to access data networks such as the Internet through a mobile communication terminal, and to carry various World Wide Web (WWW) services provided through the Internet with a simple web browser. A method of using a communication terminal has been devised.

The base of the wireless Internet system using the web services on the Internet through the mobile communication terminal is very wide in that users can use various services provided on the Internet regardless of time and place. However, due to the nature of the device, portable communication terminals have a complete Internet service due to various limitations in the available resources, for example, power supply limitations, display size and visibility limitations, transmission speed limitations, process and memory capacity limitations, etc. Have difficulty receiving.

The various information provided through web services on the Internet is generally expressed in Hyper-Text Markup Language (HTML) document format (or form). However, in the wireless Internet system, due to the limitation of the display size of the mobile communication terminal mentioned above, it is not easy to express a document of HTML format on the screen of the mobile communication terminal as it covers a wide variety of complex contents. Thus, a simplified form of an HTML document is used in a resource limited mobile communication terminal.

However, when a user uses a web service on the Internet through a wireless Internet system, an original document in HTML format (exactly, a copy of the original document) that expresses all information provided by the web server, not a document containing only simplified information. You may want to For example, while searching for a specific document, it may be difficult to accurately understand its contents by using a simplified form, so that a case where a clear document is desired may occur. Alternatively, there may be a case where a service use confirmation (for example, a receipt or a contract) is desired in the form of a document while using a service such as electronic commerce. However, the current wireless Internet system does not define at all the method of acquiring the original document in HTML format provided by the web server on the Internet through the portable communication terminal.

The technical problem to be solved by the present invention is to solve the above problems, a method of using and providing a web service to support to obtain the original document in the HTML format provided by the web server in a wireless communication system in a wireless Internet system; The present invention provides a recording medium for this purpose.

In order to solve the above technical problem, a method of using a web service in a wireless internet system according to an aspect of the present invention uses a web service provided by a web server in a wireless internet system using a web service on the internet through a portable communication terminal. A method comprising the steps of: (a) running a browser for supporting a web service through the portable communication terminal, and outputting an initial screen of the browser; (b) while using the web service through the browser, to request a copy of the original document provided by the web server corresponding to the document output in a simplified form on the screen of the portable communication terminal; Receiving a user input of selecting an original document item from a menu provided by the; (c) constructing an original document request message for requesting a copy of an original document provided by the web server corresponding to a document output in a simplified form on a screen of the portable communication terminal, and transmitting the same through a mobile communication network; And (d) receiving a response message notifying a result of the original document request message transmitted in step (c) through a mobile communication network, and outputting a result notified through the response message on a screen of the mobile communication terminal. Characterized in that it comprises a step.

In addition, in step (b), after receiving a user input for selecting the original document item (b1), an e-mail address or a fax number to be faxed to send a copy of the original document provided by the web server. The method may further include receiving a user input of, wherein the original document request message of step (c) includes an e-mail address or a fax number received in step (b1) in a header.

A method of providing a web service in a wireless internet system according to another aspect of the present invention is a method for providing a web service of a web server in a wireless internet system using a web service on the internet through a portable communication terminal, comprising: (a) the portable Receiving a first request message for requesting a web service from a communication terminal through a mobile communication network; (b) if the header of the first request message received in step (a) includes information on where to send a copy of the specific original document, a copy of the specific original document to be transmitted to the corresponding web server via the Internet. Constructing a second request message requesting a request; (c) transmitting the second request message configured in step (b) over the Internet, and receiving a first response message over the Internet including a response to the second request message; (d) If the status information included in the header of the first response message received in step (c) indicates success, the contents of the body of the first response message are included in the header of the first request message. Transmitting to an included transmission site; And (e) transmitting a second response message for notifying the portable communication terminal of the transmission result in step (d) through the mobile communication network.

In addition, in the step (b), the information on the transmission location is an e-mail address or a fax number to be sent by fax, and a step (d) of the first response message may be used. Before transmitting the contents included in the body, it is preferable to convert the contents contained in the body of the first response message into an e-mail or fax document form and transmit them to the e-mail address or fax number.

In addition, the step (e) is a status information indicating that the service request is successfully completed if the transmission result in the step (d) is successful, and the service if the transmission result in the step (d) is failed Preferably, the second response message is sent with status information indicating that the request did not complete successfully.

In order to solve the other technical problem, a computer-readable recording medium in one aspect of the present invention is (a) in a wireless Internet system using a web service on the Internet through a mobile communication terminal, the web via the mobile communication terminal Outputting an initial screen for supporting the use of a service; (b) while using the web service through the browser, the mobile communication terminal to request a copy of the original document provided by the web server corresponding to the document output in a simplified form on the screen of the mobile communication terminal; Receiving a user input for selecting an original document item from a provided menu; (c) constructing an original document request message for requesting a copy of an original document provided by the web server corresponding to a document output in a simplified form on a screen of the portable communication terminal, and transmitting the same through a mobile communication network; And (d) receiving a response message notifying a result of the original document request message transmitted in step (c) through a mobile communication network, and outputting a result notified through the response message on a screen of the mobile communication terminal. And recording a program for executing the step by the computer.

According to another aspect of the present invention, a computer-readable recording medium includes (a) moving a first request message for requesting a web service from the mobile communication terminal in a wireless internet system using a web service on the internet through the mobile communication terminal. Receiving through a communication network; (b) if the header of the first request message received in step (a) includes information on where to send a copy of the specific original document, copy a copy of the specific original document to be transmitted to the corresponding web server via the Internet. Constructing a requesting second request message; (c) transmitting the second request message configured in step (b) over the Internet, and receiving a first response message over the Internet including a response to the second request message; (d) If the status information included in the header of the first response message received in step (c) indicates success, the contents of the body of the first response message are included in the header of the first request message. Transmitting to an included transmission site; And (e) recording a program for executing by the computer the step of transmitting, via the mobile communication network, a second response message for notifying the portable communication terminal of the transmission result in step (d).

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the preferred embodiments of the present invention.

FIG. 1A schematically illustrates a structure of a wireless Internet system using a web service on the Internet through a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 1A, the wireless Internet system includes a plurality of portable communication terminals 100, a gateway 120, and web servers 140, a mobile communication network 110, and the Internet 130 that interconnect them. .

The web server 140 is a server that provides a web service on the Internet, and generally provides a service in the form of an HTML document. The web server 140 exchanges information with a client requesting a service, for example, the gateway 120 through the Internet 130 using a message or packet according to the Hyper Text Transfer Protocol (HTTP) standard. Generally, a node providing a specific service on the Internet 130 is called a server, and a node requesting a specific service is called a client. However, this is a relative concept, and most nodes are servers in a specific service aspect and a client in another service aspect. It works.

The Internet 130 mainly uses Transmission Control Protocol / Internet Protocol (TCP / IP) and generally refers to an abstract global network connecting all data communication networks around the world.

The gateway 120 is connected to both the Internet 130 and the mobile communication network 110 to interoperate with the mobile communication terminal 100 on the mobile communication network 110 and the web server 130 on the Internet 130. Do this. That is, the gateway 120 receives a web service request from the mobile communication terminal 100 and delivers it to the web server 140, and receives a service response from the web server 140 and delivers the service response to the mobile communication terminal 100. Play a role. In addition, the conversion of data or document forms necessary for interworking them is also performed. The gateway 120 has a cache internally and temporarily stores the service contents of various web servers 130 in the cache, thereby providing a quick response to the service request from the mobile communication terminal 100. It can also function as An internal structure of the gateway 120 according to the present embodiment will be described with reference to FIG. 1B.

The mobile communication network 110 refers to a wireless telephone network that interconnects the mobile communication terminals 100 or between the mobile communication terminal 100 and a base station or a mobile service center using a wireless medium. In the wireless Internet system, the mobile communication terminal 100 and the gateway 120 through the mobile communication network 110 use a message according to a standard similar to HTTP (hereinafter, referred to as HTTP for mobile communication network) in the Internet 130. Send and receive information.

The mobile communication terminal 100 generally refers to a general mobile phone supporting an Internet service, and basically includes a keypad 104 for key input and a display unit 102 displaying various information. The keypad 104 includes additional menu selection buttons 104b for inputting selection items of various service menus provided through the mobile communication terminal 100 in addition to buttons for inputting numbers or letters such as a telephone number. The lower end of the display unit 102 has a menu unit 102b for displaying a specific menu. According to the contents of the menu portion 102b, the manner in which the menu selection buttons 104b perform various functions is generally called a soft menu method. However, the present invention is not limited to the soft menu type portable communication terminal 100, and the method of using a hard menu method and other menu methods in which the buttons of each keypad 104 always perform a fixed function. The same applies to the mobile communication terminal 100.

The mobile communication terminal 100 according to the present embodiment has a web browser that supports the use of a web service on the Internet 130 as an internal program, or in some cases downloads the web browser from the gateway 120. ) Has the receiving function.

While using the web service on the Internet by running a web browser in the mobile communication terminal 100, the document of the HTTP form provided from the web server on the Internet is directly displayed on the display unit 102 of the mobile communication terminal 100 having limited resources. It is already mentioned that it is not easy to express. Accordingly, the resource-limited portable communication terminal 100 uses a handheld devices markup language (HDML) or a wireless markup language (WML) document format as an HTML document simplified form. The HDML format is proposed by Phone.com, the WML format by the Wireless Application Protocol (WAP) forum, and Microsoft's Compact HTML format. Hereinafter, the WML of the WAP will be described. The present invention is equally applicable to other document formats.

The gateway 120 includes a function of converting an HTML format document provided by the web server 140 on the Internet 140 into a WML format document and providing the same to the portable communication terminal 100 through the mobile communication network 110. . In some cases, the web server 140 may directly provide a WML format document for the wireless Internet system.

So far, the overall structure of the wireless Internet system has been described, and the internal structure of the gateway 120 in the wireless Internet system according to the embodiment of the present invention will be described.

FIG. 1B schematically illustrates an internal configuration of the gateway 120 in the wireless Internet system of FIG. 1A according to an embodiment of the present invention.

As shown in FIG. 1B, the gateway 120 according to the present embodiment basically includes a mobile communication network connection unit 122, a data network connection unit 124, a central processing unit and a memory 125, and a document format conversion unit 126. ) And an e-mail or fax transmitter 128.

The mobile communication network connection unit 122 is a communication module for communication with a mobile communication terminal through a mobile communication network, and the data network connection unit 124 is a communication module for communication with a web server via the Internet. The central processing unit (CPU) and the memory 125 control the operations of the entire gateway 120 and temporarily store data or documents.

The document format converter 126 is a module that performs a function of converting a document in HTML format and a document in WML format. In addition, when a request for an original document is received from the mobile communication terminal, the HTML format document is converted into an e-mail or fax document form in order to send an HTML format document received from a web server by e-mail or fax. Perform. Then, the electronic mail or fax transmission unit 128 performs a function of transmitting the converted electronic mail or fax document form through the document format conversion unit 126 by electronic mail or fax. Here, the document format converting function to the electronic mail or fax document form may be implemented in the electronic mail or fax transmitting unit 128 as well as the document format converting unit 126.

Subsequently, a specific operation method of the portable communication terminal 100 shown in FIG. 1A and the gateway shown in FIGS. 1A and 1B according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 and 3. 2 is a flowchart illustrating a method of using a web service through a portable communication terminal in the wireless Internet system of FIG. 1A according to an embodiment of the present invention.

First, the user selects the wireless Internet service menu item on the mobile communication terminal (step 200).

When the user selects the wireless Internet service menu item, the mobile communication terminal drives an embedded web browser and outputs an initial screen of the browser (step 210). Here, the document on the initial screen is expressed in the WML format mentioned above. In general, a web browser is usually embedded as an internal program of a mobile communication terminal, but in some cases, it may be downloaded from a gateway. In addition, the initial screen may include a specific initial screen itself, or may receive an initial screen provided by the gateway and output the received initial screen on the browser.

When a user uses a web service on the Internet through a browser and wants a copy of the original document provided by the corresponding web server instead of a simplified document in a WML form for a specific document output on the browser, The original document menu item provided by the communication terminal is selected (step 220).

In addition, the user inputs an e-mail address or a fax number as information on a place to transmit the original document. In this embodiment, a second web server may be designated to temporarily store the original document. In this case, the user inputs a web address of the second web server, that is, a URI (Universal Resource Identifier).

When the mobile communication terminal or the browser receives a user input for selecting a menu item of the original document, an original document request message for requesting the original document is configured by the corresponding web server, and then transmitted to the gateway (step 240). 250). Here, the request message is considered to be compatible with the conventional (for wireless Internet) HTTP standard, it is preferable that the method of the request line (Request-Line) to use "GET" or a modified form thereof. In addition, the message header (request-header) preferably includes an application header (application header) or request header (request-header) shown in Table 1.

Send-Copy-To = FAX-Phone-Number | E-Mail-Address | URI FAX-Phone-Number = Text-String E-Mail-Address = Text-String URI = Text-String

After processing the original document request message, the gateway returns a response message notifying the result thereof to the mobile communication terminal. The processing of the original document request message at the gateway will be described with reference to FIG. 3.

When the mobile communication terminal receives a response message notifying the result of the original document request from the gateway (step 260), the mobile communication terminal outputs the result on the screen of the mobile communication terminal (step 270).

Subsequently, an operation method of the gateway according to the embodiment of the present invention will be described. 3 is a flowchart illustrating a web service providing method of a web server through a gateway in the wireless internet system of FIG. 1A according to an embodiment of the present invention.

First, the gateway receives a request message for the wireless Internet requesting a web service from the portable communication terminal (step 300), and checks the header of the message to check whether it is an original document request according to an embodiment of the present invention (step 310).

In the case of a general wireless Internet service request, the service is provided according to a conventional procedure. That is, the header and body of the request message for the wireless Internet are reconfigured into an HTTP request message (step 315), the reconfigured HTTP request message is transmitted to the web server, and then an HTTP response message is received (step 325). Convert the HTML form document included in the HTTP response message from the server to WML, reconstruct the header and body of the HTTP response message for the wireless Internet (step 335), and transmit it to the mobile communication terminal through the mobile communication network (step 390). Of course, if the gateway has a proxy function, the first step is to check if the document exists in the cache of the gateway.

Next, a case of an original document request according to an embodiment of the present invention will be described. Since the original document service according to an embodiment of the present invention is processed internally at the gateway, it operates independently of the web server on the Internet.

Thus, the HTTP request message to be sent to the web server consists of a conventional document " GET " request message (step 320). In addition, it is not necessary to include the application header shown in Table 1 included in the request message for the wireless Internet received from the mobile communication terminal in the HTTP request message to be transmitted to the web server. Of course, in some cases, an operation method of transmitting an HTTP request message including an application header to a web server and disregarding the application header in the web server may be possible. If the gateway has a proxy function, first check if the original document exists in the cache of the gateway. If the original document exists in the cache, the document in the cache can be used as it is. The needlessness has already been seen.

Next, an HTTP request message composed of a "GET" request message of a general document is transmitted to a web server through the Internet, and an HTTP response message is received thereto (step 330).

If the status code of the received HTTP response message from the web server indicates an error, the HTTP response message for the wireless Internet is configured and transmitted to the mobile terminal as in the general web service request (step 340, step 335, Step 390), the processing for the service request ends. Thus, the actual original document service is performed when the gateway normally receives the original document from the web server.

As described in the application header of the request message for the wireless Internet received in step 300, the user may designate three types of transmission locations. In the case of the e-mail transmission or the fax transmission, the HTML original document received from the web server is converted into an e-mail form or a fax form document and transmitted to the e-mail address or fax number (step 350 and step 360). However, in the case of the temporary storage on the second web server, the HTML original document can be transmitted as it is, and there is no need to go through step 350. The second web can be configured by constructing a "POST" HTTP request message including the original document in the body. Sending to the server is common.

Finally, an HTTP response message for wireless Internet notifying the service result of the original document is constructed (step 375), and transmitted to the mobile communication terminal (step 390). If a transmission error occurs in step 360, a response message including a service failure status code, that is, a status code indicating that the corresponding service request is not completed successfully, is configured (steps 370 and 375). If no transmission error occurs in 360, a response message including a service success status code, that is, a status code indicating that the service is completed successfully, is configured (step 370, step 380).

Here, the response message is considered to be compatible with the conventional (for wireless Internet) HTTP standard. In case of transmission failure, a status code such as "403 Forbidden" is displayed in the status line of the response message. -code) and reason phrase (Reason-Phrase), and in case of transmission failure, "200 OK" is preferable.

Embodiments of the present invention can be written as a program executable in a computer system, and can be executed in a general-purpose digital computer system by reading from a computer readable recording medium recording such a program. Such recording media include magnetic storage media (e.g., ROM, floppy disk, hard disk, etc.), optical reading media (e.g., CD-ROM, DVD, etc.) and carrier waves (e.g., transmission over the Internet). Media is included.

So far, the present invention has been described with reference to the preferred embodiment (s). Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown not in the above description but in the claims, and all differences within the scope will be construed as being included in the present invention.

According to the present invention, since the original document of the HTML format provided by the web server can be obtained through the mobile communication terminal in the wireless Internet system, the user may feel inconvenience caused by the limited resources of the mobile communication terminal when using the wireless Internet. .

In addition, the present invention can operate with compatibility with the conventional HTTP protocol as a whole.

Claims (11)

A method of using a web service provided by a web server in a wireless internet system using a web service on the internet via a portable communication terminal, (a) driving a browser for supporting a web service through the mobile communication terminal and outputting an initial screen of the browser; (b) while using the web service through the browser, the mobile communication terminal to request a copy of the original document provided by the web server corresponding to the document output in a simplified form on the screen of the mobile communication terminal; Receiving a user input for selecting an original document item from a provided menu; (c) constructing an original document request message requesting a copy of an original document provided by the web server corresponding to a document output in a simplified form on the screen of the portable communication terminal, and transmitting the same through a mobile communication network; ; And (d) receiving a response message notifying the result of the original document request message transmitted in step (c) through the mobile communication network, and outputting the result notified through the response message on the screen of the mobile communication terminal; Method of using a web service in a wireless Internet system, characterized in that it comprises a step. According to claim 1, wherein step (b), (b1) after receiving a user input for selecting the original document item, receiving a user input of an e-mail address or a fax number for faxing a copy of the original document provided by the web server. Including, The original document request message of step (c) includes an e-mail address or a fax number received in step (b1) in a header. According to claim 1, wherein step (b), (b1) after receiving a user input for selecting the original document item, further receiving a user input of a web address of a second web server for temporarily storing a copy of the original document provided by the web server. and, The original document request message of step (c) includes the web address of the second web server received in step (b1) in a header. A method of providing a web service of a web server in a wireless internet system using a web service on the internet via a portable communication terminal, (a) receiving a first request message for requesting a web service from the portable communication terminal through a mobile communication network; (b) if the header of the first request message received in step (a) includes information on a transmission location to which a copy of the specific original document is to be sent, a copy of the specific original document to be transmitted to the web server through the Internet. Constructing a second request message requesting a request; (c) transmitting the second request message configured in step (b) over the Internet, and receiving a first response message over the Internet including a response to the second request message; (d) If the status information included in the header of the first response message received in step (c) indicates success, the contents of the body of the first response message are included in the header of the first request message. Transmitting to the included transmission site; And (e) transmitting a second response message for notifying the portable communication terminal of the transmission result in step (d) through a mobile communication network. The method of claim 4, wherein In the step (b), the information on the transmission location is an e-mail address or a fax number to be faxed to the copy of the specific original document by e-mail, In step (d), before transmitting the contents included in the body of the first response message, the contents included in the body of the first response message are converted into an e-mail or fax document form and the e-mail address is converted. Or transmitting to a fax number. The method of claim 4, wherein In the step (b), the information about the transmission location is a web address of a second web server for temporarily storing a copy of the specific original document, In step (d), a third request message for requesting storage of contents included in the body of the first response message may be configured and transmitted to the web address of the second web server through the Internet. Method of providing web service in wireless internet system. The method of claim 4, wherein step (e) If the transmission result in step (d) is successful, the status information indicates that the service request is completed successfully. If the transmission result in step (d) is failed, the service request is not completed successfully. And transmitting the second response message including the displayed status information in a header. (a) in a wireless Internet system using a web service on the Internet through a mobile communication terminal, driving a browser to start using the web service through the mobile communication terminal and outputting an initial screen of the browser; (b) while using the web service through the browser, the mobile communication terminal to request a copy of the original document provided by the web server corresponding to the document output in a simplified form on the screen of the mobile communication terminal; Receiving a user input for selecting an original document item from a provided menu; (c) constructing an original document request message for requesting a copy of an original document provided by the web server corresponding to a document output in a simplified form on a screen of the portable communication terminal, and transmitting the same through a mobile communication network; And (d) receiving a response message notifying the result of the original document request message transmitted in step (c) through the mobile communication network, and outputting the result notified through the response message on the screen of the mobile communication terminal; A computer-readable recording medium having recorded thereon a program for executing a step by a computer. According to claim 8, wherein step (b), (b1) after receiving a user input for selecting the original document item, receiving a user input of an e-mail address or a fax number for faxing a copy of the original document provided by the web server. Including, And the original document request message of step (c) includes an e-mail address or a fax number received in step (b1) in a header. (a) receiving a first request message for requesting a web service from a mobile communication terminal through a mobile communication network in a wireless internet system using a web service on the internet through a mobile communication terminal; (b) if the header of the first request message received in step (a) includes information on a transmission location to which a copy of the specific original document is to be sent, a copy of the specific original document to be transmitted to the web server through the Internet. Constructing a second request message requesting a request; (c) transmitting the second request message configured in step (b) over the Internet, and receiving a first response message over the Internet including a response to the second request message; (d) If the status information included in the header of the first response message received in step (c) indicates success, the contents of the body of the first response message are included in the header of the first request message. Transmitting to the included transmission site; And (e) a computer-readable recording medium having recorded thereon a program for executing, by a computer, a step of transmitting, via a mobile communication network, a second response message for notifying the portable communication terminal of the transmission result in step (d). . The method of claim 10, In the step (b), the information on the transmission location is an e-mail address or a fax number to be faxed to the copy of the specific original document by e-mail, In step (d), before transmitting the contents included in the body of the first response message, the contents included in the body of the first response message are converted into an e-mail or fax document form and the e-mail address is converted. Or a computer-readable recording medium having a program recorded thereon, characterized in that it is sent to a fax number.

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