KR20050041538A - A method for providing personal mobile devices with web page data and a system thereof - Google Patents

Abstract

The present invention relates to a method and a system for providing a web page to a user's personal mobile terminal using an identifier of a user, and more particularly, to an interface between the caller and the called party using an identifier of the caller and the called party. A method and system for providing a user with predetermined user profile or web page data corresponding to the identifier according to a call progress state.

According to an aspect of the present invention, there is provided a web page providing method comprising: maintaining a web page information database for recording an identifier of a user including a sender and a called party, a profile or web page data set by the user; Receiving progress status information of a call between the originator and the called party that is performed by using the originator and the called party's identifier; Retrieving the web page data or the profile of each of the caller and the called party set according to the call progress information corresponding to the identifier by referring to the webpage information database; And transmitting the retrieved profile and the web page data of each of the caller and the called party to a personal portable terminal of the caller and the called party.

Description

A METHOD FOR PROVIDING PERSONAL MOBILE DEVICES WITH WEB PAGE DATA AND A SYSTEM THEREOF

The present invention relates to a method and a system for providing a web page to a user's personal mobile terminal using an identifier of a user, and more particularly, to an interface between the caller and the called party using an identifier of the caller and the called party. A method and system for providing a user with predetermined user profile or web page data corresponding to the identifier according to a call progress state.

Today, with the advent of Multimedia Messaging Services (MMS), the mobile Internet is further developed, and convergence of wired and wireless is advancing rapidly. People have a growing desire to share their experiences and activities with others, and in this environment, sharing information through multimedia can meet their needs.

Meanwhile, in the existing wired / wireless communication network, when a telephone call is made between the caller and the called party, only the number of the caller or the multimedia message set by the caller or the called party is delivered to the called party by using the caller or the called party's identifier.

As the bandwidth of wired / wireless communication networks is expanded and users' desire for more various communication services increases, the emergence of a service for transmitting user-related information set by a user to a counterpart using a personal portable terminal is required. However, in the case of a communication service using a wired / wireless communication network, there is a problem in that a caller can only view a caller's identifier or a caller's identifier or a predetermined multimedia message, and cannot view user related information set by each user. In the case of a mobile phone that is being used recently, the user terminal stores the picture information of the caller corresponding to the caller identifier previously stored, and when there is a call setup request from the caller, the picture information corresponding to the caller identifier is stored on the called party's mobile phone. It has a built-in display function. As a so-called "photophone book" function, this also has a limitation that information stored on the called party's terminal side, rather than user-related information set on the caller's side. Therefore, in order to view a web page, etc., in which a user related information is stored, on a personal portable terminal, the caller and the called party have to inquire directly into the terminal by accessing the other party's Universal Resource Locator and the like with the corresponding information. .

Therefore, in connection with the equipment of the existing wired / wireless network or packet communication network, the web page of the caller and the caller is connected to the unique identifier of the caller and the caller, and the caller and the caller according to the call progress state using the identifier. There is an urgent need for the emergence of services that provide kerning or callers with web pages that the called party has previously set and saved.

The method and system for providing a web page using the identifier according to the present invention has been made to solve the above-mentioned problems, and its purpose is to enable the sender and the receiver to easily access the web page of the other party without a separate operation.

In addition, the method and system for providing a web page to a personal mobile terminal according to the present invention is the web of the other party through the web page of the other party at the same time, before or after the call, or separately from the voice call between the caller and the called party Its purpose is to make it easy to access the various information contained on the page.

In addition, the method and system for providing a web page to a personal portable terminal according to the present invention can express a user's own unique personality through a web page, and provide a content provider with a space for activating content. In addition, the purpose of the present invention is to enable revenue generation of mobile communication service providers by activating data traffic.

In order to achieve the above object and solve the problems of the prior art, a web page providing method according to one aspect of the present invention, the web recording the identifier of the user including the sender and the called party, the profile or web page data set by the user Maintaining a page information database; Receiving progress status information of a call between the originator and the called party that is performed by using the originator and the called party's identifier; Retrieving the web page data or the profile of each of the caller and the called party set according to the call progress information corresponding to the identifier by referring to the webpage information database; And transmitting the retrieved profile and the web page data of each of the caller and the called party to a personal portable terminal of the caller and the called party.

In addition, the web page providing system according to an aspect of the present invention, the interface unit for data transmission with an external system including an SCP / SIP server or HLR / AAA server; A web page information database which records an identifier of a user including a caller and a called party, and profile or web page data set by the user; A terminal information database for recording terminal specification information of the user's personal portable terminal; The call setup request information of the caller including the called party identifier received through the interface unit is analyzed, and the profile or webpage data of the caller and the called party corresponding to the identifier are referred to with reference to the webpage information database. Search the terminal specification information of the personal portable terminal of the caller and the called party by referring to the terminal information database, and modify the searched profile or webpage data based on the terminal specification information to the personal portable terminal. It characterized in that it comprises an application unit for transmitting.

As used herein, a personal portable terminal is provided with a predetermined communication module such as a PDA (Personal Digital Assistant), a handheld PC, a smartphone, a mobile phone, and the like, and mounts a predetermined computing power by mounting a predetermined microprocessor. It is a concept that encompasses not only a mobile communication terminal equipped, but also a portable broadcast receiver including a satellite digital multimedia broadcasting receiver.

Hereinafter, with reference to the accompanying drawings will be described in detail a method and system for providing a web page to a personal portable terminal according to an embodiment of the present invention.

1 is a diagram illustrating a structure of a mobile communication service system to which a method and system for providing a predetermined web page to a personal portable terminal according to the present invention can be applied. Referring to FIG. 1, the currently established mobile communication service system may be largely configured to include a connectivity layer, a control layer, and a service layer. The connection layer is a layer for establishing, maintaining, and releasing a call between a mobile station (MS) such as a personal mobile terminal and a mobile communication service system. For example, in the case of a wideband code division multiple access (WCDMA) method, the BTS (Base) Transceiver Station and Radio Network Controller (RNC) include BTS and BSC (Base Station Controller) in case of Code Division Multiple Access (CDMA). The control layer may include a MSC, a Service Control Point (SCP) / Session Initiation Protocol (SIP) server, a Home Location Register (HLR) / Authentication, Authorization, and Accounting (AAA) server. Depending on the implementation, the HLR / AAA server may be implemented as a home subscriber server (HSS). SCP (Service Control Point) manages logic and data of intelligent network service and controls all processes of intelligent network service. In addition, SCP uses SSAP (Signaling System No. 7) based Mobile Application Part (MAP) protocol and intelligent network standard protocol (INAP, WIN, CAMEL) or IP-based Parlay API or SIP protocol to exchange resources with other network resources. It may also be implemented to work together. Depending on the implementation, such SCP and the SIP described later may operate as separate modules, and may be implemented by interworking with SIP by mounting a SIP interface as a component in the SCP, or by including a SIP module in the SCP. .

The HLR / AAA server manages the current location of the mobile communication service user, manages service history information of the user, authenticates the user, and charges for using the service.

The Mobile Switching Center (MSC) is responsible for establishing, managing, and releasing call connections, and performing call routing as well as interfacing with the Public Switched Telephone Network (PSTN).

The service layer is responsible for providing a predetermined mobile communication service to the user after call setup or user confirmation performed at the connection layer and the control layer.

The general voice service providing flow performed in the aforementioned mobile communication service system is

(1) When the MS (Mobile Station) enters a new registration area, the MS transmits a location registration request message to the MSC of the corresponding registration area.

(2) The MSC forwards the authentication request message to the HLR for authentication of the MS, which in turn sends a response message to the MSC.

(3) If the MS is authenticated, the MSC sends a location registration notification message to the HLR, which records the new location information in the database.

An example of the method of performing the above (1) to (3) is specified in the location registration procedure of the personal mobile terminal specified in IS-41, the North American mobile network standard.

2 is a general flowchart illustrating a web page providing method using an identifier according to the present invention. Hereinafter, with reference to Figure 2 will be described in detail the processes performed for each step in the web page providing method using the identifier according to the present invention.

First, in step S200, the caller sends a voice call setup request through the mobile communication network by inputting the called party's identifier into his personal portable terminal. The identifier may be a general telephone number, a mobile identification number (MIN), a cellular telephone number (CTN), an international mobile station identity (IMSI), a SIP address, an IP address, or May contain one or more of the email addresses. In step S200, the packet call setup request is performed using a special identifier (for example, using or combining a special symbol such as '*' or '#') as well as a normal voice call request. It can also be sent. In the case of the packet call setup request including the special identifier, the call can be accessed through the packet data service node (PDSN). Therefore, it is possible to directly receive profile or web page data corresponding to the called party's identifier without generating a voice call.

In step S210, the Mobile Switching Center (MSC) receiving the voice call setup request including the called party's identifier uses a Home Location Register (HLR) using the calling party and the called party's identifier. It determines whether the sender and the called party is a legitimate user of the web page providing service according to the present invention through the (AAA: Authentication, Authorization, and Accounting) server.

The home location register (HLR) provides user information (for example, user location information, power status of the user's personal mobile terminal, and trigger information that is an additional service setting state) for processing the received voice call setup request in real time. In charge of managing functions. Also, the authentication / authorization / billing (AAA) server typically performs user authentication, authorization verification, and charging functions for packet call setup requests. The home location register (HLR) and the authentication / authorization / billing (AAA) server may be implemented as one integrated system (HLR / AAA) for integrated management of voice calls and packet calls and efficient call processing. When the HLR / AAA receives a user authentication request from the MSC, the HLR / AAA authenticates the user and transmits the user information about the authenticated user to the MSC. According to an embodiment of the present invention, the HLR / AAA may be replaced with a home subscriber server (HSS).

In step S220, the MSC analyzes the transmitted user information to perform a call setup, progress, and connection procedure. The trigger information included in the user information may include information for receiving a webpage providing service. According to an embodiment of the present invention, the trigger information may be set as follows. That is, (1) when a call occurs, (2) when a call is going to a called party, (3) when the called party is busy, (4) when the called party does not answer the call, (5) the called party's terminal When the power is off, (6) If the called party is set not to receive the webpage provision service, (7) If the caller's identifier information is registered in the blacklist information set by the called party, or (8) Special identifier Trigger information may be set for each of the cases where a call including (an identifier including * or #) occurs. When the trigger according to the trigger information occurs, the mobile communication switching center (MSC) checks the progress of the call.

In step S230, the mobile communication switching center (MSC) transmits the trigger information to a service control point (SCP) / Session Initiation Protocol (SIP) server to request a webpage providing service according to the progress of the call. The SCP / SIP server encodes the identifier and the call progress state of each of the caller and the called party using SS7 based protocol or session description protocol (SDP) of Session Description Protocol (SDP). (Hereinafter, this message is referred to as SCP / SIP message.) The SCP / SIP message is transmitted to the web page providing system according to the present invention.

The SIP protocol is generally a simple text-based application layer control protocol that allows one or more users to establish, modify, and terminate sessions together. Such sessions may include teleconferences, phone calls, visits, event notifications, instant messaging, and the like, via the Internet. In addition, SIP may operate independently of a network layer or a transport layer related protocol (eg, TCP, UDP, ATM, X.25, etc.) located in the OSI 7 layer.

As will be appreciated by those skilled in the art, the SIP protocol is designed after the text-based Simple Mail Transfer Protocol (SMTP) and HyperText Transfer Protocol (HTTP), where the client responds to the call when the client initiates the call. It is based on the / server architecture. In addition, the SIP protocol has the advantage of easy troubleshooting, network debugging (debugging) by following these existing text-based Internet standards. Key features of these SIP protocols include: (1) supporting Internet multimedia conferencing, Internet telephony, multimedia distribution, and (2) performing multicast or mesh unicast communications, and (3) Allow sessions, (4) support "user mobility" through proxies and redirects, (5) sub-layer protocol independent, (6) extension to specific applications It is excellent in sex.

In step S240, the webpage providing system according to the present invention analyzes the SCP / SIP message transmitted from the SCP / SIP server and extracts the identifier and call progress information of each of the caller and the called party.

In step S250, the webpage providing system according to the present invention records the profile and webpage data set by the caller and the called party, respectively, based on the identifier and the call progress information. Search for. The profile includes the user's general telephone number, mobile identification number (MIN), cellular telephone number (CTN), international mobile station identity (IMSI), SIP address, IP One or more of an address, an e-mail address, or the user's profile information (personal information such as his / her name, work) set by the user, or mobile communication service information subscribed to by the user may be included. In addition, the profile may further include a text text message or voice message preset by the user to correspond to the call progress status, and the web page data may be text, video, audio, or pause that is matched to a user's preference by the user. And multimedia data such as an image. For example, if the user is a content provider providing predetermined content, the user may be web page data prepared to provide the content.

In step S260, the webpage providing system according to the present invention transmits the webpage data of each of the retrieved caller and the called party according to the call progress state to the terminal specification information of the caller or the personal portable terminal of the called party. Transform to fit. The terminal specification information refers to display information of the personal portable terminal, a data communication version supported by the personal portable terminal (such as CDMA2000 or IMT2000), and whether the personal portable terminal supports wireless Internet browsing (for example, WAP or Non-WAP, etc.) means information about a personal portable terminal required to transmit the web page to the personal portable terminal. Such terminal specification information may be stored for each user in a terminal information database of the webpage providing system, and the webpage providing system retrieves terminal specification information of a personal portable terminal corresponding to the user by referring to the terminal information database. . In step S260, the webpage data transmitted to the user is converted to be displayed on the user's personal portable terminal based on the retrieved terminal specification information.

According to another embodiment of the present invention, if it is determined that the terminal specification information of the personal mobile terminal retrieved in step S260 does not receive the webpage provision service according to the present invention or is necessary for implementation, the personal Sends a short message including a predetermined universal resource locator (URL) in which the web page data transmitted to the mobile terminal is located to the personal portable terminal, and the personal portable terminal includes a callback URL included in the received short text message. It is also possible to operate to view the web page data through.

In steps S270 and S280, the webpage providing system according to the present invention transmits the caller's webpage data to the called party's personal mobile terminal as the call proceeds, and sends the called party's webpage data to the caller's personal information. Transfer to a mobile terminal. The webpage data may be transmitted using well known IP based protocols such as HTTP, SMTP, WAP, and the like.

3A to 3F illustrate examples of a user interface displayed on a user's personal portable terminal according to the progress of a call of the present invention.

3A to 3F, FIG. 3A illustrates an example of a user interface displayed on a caller's personal mobile terminal when a call is generated by a caller and connected to a called party, and FIG. 3B shows that the called party is busy. 3C shows an example of a user interface for navigating caller's webpage data provided to the called party after the call between the called party and the called party is released, in FIG. 3C.

3E illustrates an example of a user interface displayed on the sender's personal portable terminal when the receiver's personal portable terminal is turned off, and FIG. 3F illustrates a situation in which the called party cannot receive a webpage providing service according to the present invention. An example of the user interface displayed on the caller's personal portable terminal, if out of service, is shown.

4 is a block diagram showing the internal configuration of a web page providing system according to the present invention.

Referring to FIG. 4, the webpage providing system 400 according to an exemplary embodiment of the present invention may include an interface unit 410, a database 420, and an application unit 430.

The interface unit 410 is configured to inform the caller from the SCP / SIP server of the progress of the voice call using the called party's identifier, or a combination of a special identifier (such as "*" or "#") and the called party's identifier. Physical or logical interfacing is performed between the web page providing system 400 and the SCP / SIP server according to the present invention for receiving encrypted encrypted SCP / SIP message using SS7 or SIP protocol. The interface unit 410 of the web page providing system 400 according to the present invention may be a HyperText Transfer Protocol (HTTP), a Session Initiation Protocol (SIP), a Wireless Application Protocol (WAP) 1.0 and 2.0, or a Simple Mail Transfer Protocol (SMTP). It may be implemented to support one or more of the IP-based protocol, or SS7-based MAP (Mobile Application Part) protocol and intelligent network standard protocol (INAP, WIN, CAMEL) or the Internet standard (standard).

The database 420 includes a web page information database (not shown) that records a profile and web page data set by a user including a sender and a receiver, and a terminal specification information of the user's personal portable terminal. Information database (not shown) or a user information database (not shown) that records user information (user identifier, user contact information, user service inventory information, etc.) of the user.

The profile recorded in the webpage information database includes the user's general telephone number, a mobile identification number (MIN), a cellular telephone number (CTN), and an international mobile telephone subscriber identifier (IMSI). : One or more of an International Mobile Station Identity), a SIP address, an IP address, or an e-mail address, or profile information (personal information such as his / her name or work) set by the user, or a mobile communication service subscribed to by the user Information may be included, and the webpage data may include multimedia data in various formats, which may be updated by the user through a wired / wireless communication network (mobile communication network, wired / wireless internet network, etc.). In addition, although not shown in Figure 4, the web page providing system 400 according to the present invention may further include a database manager for managing the content database 420, such a database manager is Oracle (Oracle), The relational database management system (RDBMS) such as Infomix, Sybase, DB2, or the object-oriented database management system (OODBMS) such as Orion, O2, etc. can be implemented for the purpose of the present invention. Can be.

The application unit 430 analyzes the SCP / SIP message received from the interface unit 410 and refers to the profile corresponding to the identifier of the sender and the called party by referring to the webpage information database included in the database 420. Retrieve web page data. Further, the terminal specification information of the user's personal portable terminal is searched for by referring to the terminal information database included in the database 420, and the searched profile or webpage data is converted to the personal portable terminal according to the searched terminal specification information. send.

Embodiments of the invention include a computer readable medium containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

5 is an internal block diagram of a general purpose computer system that may be employed in a method and system for providing a web page to a personal digital assistant according to the present invention.

Computer system 500 includes one or more processes 510 connected to main memory including random access memory (RAM) 520 and read only memory (ROM) 530. Process 510 is also called a central processing unit (CPU). As is well known in the art, the ROM 530 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 520 typically transfers data and instructions bidirectionally. Used to. RAM 520 and ROM 530 may include any suitable form of computer readable media. Mass storage 540 is bidirectionally coupled to process 510 to provide additional data storage capabilities, and may be any of the computer readable recording media described above. The mass storage device 540 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 560 may be used. Process 510 may include one or more input / output interfaces, such as video monitors, trackballs, mice, keyboards, microphones, touchscreen displays, card readers, magnetic or paper tape readers, voice or handwriting readers, joysticks, or other known computer input / output devices. 550 is connected. Finally, process 510 may be connected to a wired or wireless communication network through network interface 570. Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

The method and system for providing a predetermined web page to a personal portable terminal according to the present invention described above have been described with reference to an embodiment through a code multiplexing access (CDMA) scheme, which is one of mobile communication networks. Those skilled in the art will not only provide services through a mobile communication network using broadband code multiplexing (WCDMA), Enhanced Data rates for GSM Evolution (EDGE) or Global System for Mobile communications (GSM), but also wireless based on IEEE802.11b. It will be apparent that the service can be provided through a LAN, a portable Internet, a Bluetooth wireless communication network, or a wired Internet network.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains should not depart from the spirit of the present invention. It is obvious that various modifications and changes are possible within the scope.

As described above, according to the method and system for providing a web page to a personal portable terminal according to the present invention, by using the identifier of the sender and the called party, the sender and the called party can be easily connected to the web page of the other party without any manipulation. It is possible to obtain an effect of accessing the information to obtain various information about the other party.

In addition, according to the method and system for providing a web page to a personal portable terminal according to the present invention, while making a voice call between the called party and the called party, and connected to the other party's web page before and after the call, or separately from the voice call By doing so, it is possible to obtain various web page data provided by the counterpart.

In addition, according to the method and system for providing a web page to a personal portable terminal according to the present invention, it is possible to express a unique personality of the user through the web page, the content provider provides a space to activate the content In addition to providing it, it is possible to generate the profit of the mobile communication service provider by activating the data traffic.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a diagram illustrating a structure of a mobile communication service system to which a method and system for providing a predetermined web page to a personal portable terminal according to the present invention can be applied.

2 is a flowchart illustrating a method for providing a web page to a personal portable terminal according to an embodiment of the present invention.

3A to 3F illustrate an example of a user interface displayed on a personal portable terminal of a user according to a call progress state according to an embodiment of the present invention.

4 is a block diagram showing the internal configuration of a web page providing system according to an embodiment of the present invention.

5 is an internal block diagram of a general purpose computer system that may be employed in a method and system for providing a web page to a personal digital assistant according to the present invention.

<Explanation of symbols for the main parts of the drawings>

410: interface unit

420: database

430: application unit

Claims (8)

In the method for providing a predetermined web page using a personal portable terminal, Maintaining a webpage information database for recording an identifier of a user including a caller and a called party, a profile or webpage data set by the user; Receiving progress status information of a call between the originator and the called party that is performed by using the originator and the called party's identifier; Retrieving the web page data or the profile of each of the caller and the called party set according to the call progress information corresponding to the identifier by referring to the webpage information database; And Transmitting the retrieved profile and the web page data of each of the caller and the called party to the personal mobile terminal of the caller and the called party. Web page providing method comprising a. The method of claim 1, Maintaining a terminal information database recording terminal specification information for the personal portable terminal of the caller or the called party; Retrieving terminal specification information of the personal portable terminal of the caller or the called party by referring to the terminal information database; And Converting the retrieved profile or the webpage data into a predetermined format according to the retrieved terminal specification information; And transmitting the profile or the web page data to a personal portable terminal of the caller and the called party transmit the converted profile or the web page data. The method of claim 1, The step of transmitting the retrieved profile and the web page data of each of the caller and the called party to the personal portable terminal of the caller and the called party, Transmitting a short message including a universal resource locator (callback URL) in which the profile or the web page data is located to the sender or the personal portable terminal of the called party; Establishing a connection with the personal mobile terminal in response to an acknowledgment of the caller or the called party; And Transmitting the profile or the webpage data to the personal mobile terminal. Web page providing method comprising a. The method of claim 1, And the profile is multimedia data including the identifier or text, audio, video, or still image set by the user. The method according to claim 1 or 4, The identifier may be a general telephone number, a mobile identification number (MIN), a cellular telephone number (CTN), an international mobile station identity (IMSI), a SIP address, an IP address, or A web page providing method comprising at least one of an email address. A computer-readable recording medium having recorded thereon a computer executable program for executing the method according to any one of claims 1 to 5. In the system for providing a predetermined web page to a personal portable terminal, An interface unit for data transmission with an external system including an SCP / SIP server or an HLR / AAA server; A web page information database which records an identifier of a user including a caller and a called party, and profile or web page data set by the user; A terminal information database for recording terminal specification information of the user's personal portable terminal; The call setup request information of the caller including the called party identifier received through the interface unit is analyzed, and the profile or webpage data of the caller and the called party corresponding to the identifier are referred to with reference to the webpage information database. Search the terminal specification information of the personal portable terminal of the caller and the called party by referring to the terminal information database, and modify the searched profile or webpage data based on the terminal specification information to the personal portable terminal. Application unit to transmit Web page providing system comprising a. The method of claim 7, wherein The interface unit supports one or more of an IP based protocol including HTTP, SIP, WAP, or SMTP, or an SS7 based protocol including a MAP (Mobile Application Part) protocol or an intelligent network standard protocol (INAP, WIN, CAMEL). Web page providing system, characterized in that.