KR20020048244A - Method of searching for information by using cell broadcast technique - Google Patents

Abstract

PURPOSE: An information search method of a mobile communication terminal using cell broadcasting technique is provided to search the corresponding information from the information embedded to the terminal of the provider by using a broadcasting message and a broadcasting region provided by a service user. CONSTITUTION: A mobile communication terminal(100) stores the information provided to the user of a service from an information provider, receives a broadcasting message provided by a broadcasting server(500) through a search server(550), and receives the information stored to the mobile communication terminal(100) an information provider according to the search request of the broadcasting server(500) through the search server(550). The base station(200) provides a data communication server between the mobile communication terminal(100) existing within the service region(that is, a cell) and a mobile communication exchange(300).

Description

Information retrieval method of mobile communication terminal using cell broadcasting technology {METHOD OF SEARCHING FOR INFORMATION BY USING CELL BROADCAST TECHNIQUE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for retrieving information between mobile communication terminals. In particular, the present invention relates to a search area provided by a service user as a broadcasting area, so that information corresponding to the search reference information provided by the service user is included in the information provider included in the broadcasting area. The present invention relates to a method for retrieving information between mobile communication terminals using a cell broadcast service technique for retrieving information stored in mobile communication terminals.

Recently, according to the development of communication and network technology, a mobile communication terminal can use a data communication network to search for a service provider based on its location or search for a service provider based on the location information of the other party and receive information provided by the service provider. Techniques have been developed to launch the service.

Conventional location-based information provider retrieval and information retrieval methods are performed using data transmission services such as short message service and wireless application protocol (WAP).

This method is only possible to search for information providers in fixed locations and to provide information that is independent of location. In addition, the information retrieval service server has a problem that the location information and detailed information of the information provider must be stored, and the information provider must register with the information service provider server in order to provide a service.

In addition, the information service server needs to periodically manage location information of the information provider through a short message service for searching for a moving information provider, and thus provides only a service for frequently used information search due to high resource consumption of the mobile communication network. There is a problem that can only be done.

That is, due to resource consumption of the mobile communication network, it is impossible to provide various services requested by the user.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems of the prior art, and includes a broadcast message that is a search reference information provided by a service user and a broadcast area that is a search area provided by a service user. The present invention provides a method for retrieving information between mobile communication terminals using a cell broadcast service technique that can retrieve information stored in a mobile communication terminal of an information provider.

In order to achieve the above object, the present invention provides a search information service method for providing the service user with search information provided by an information provider corresponding to the search reference information requested by the service user using a data communication network. A service user inputs the search reference information and the search area by using the mobile communication terminal and the data communication network, and transmits the input search reference information and the search area to the search service server through the data communication network. Requesting the search information, setting the search reference information as a broadcast message, and setting the search area as a broadcast area to provide the broadcast message to any mobile communication terminal included in the broadcast area; Mobile communication of the information provider for the broadcast message When there is a response signal from the terminal, collecting the information stored in the mobile communication terminal with the response signal for a predetermined time to provide to the service user and the mobile communication of the service user through the data communication network An information retrieval method of a mobile communication terminal, which is a process of displaying on a terminal, is provided.

1 is a configuration diagram of an information retrieval service system suitable for retrieving information in a mobile communication terminal using a cell broadcasting technology according to the present invention;

2 is a flowchart illustrating a process of searching for information in a mobile communication terminal using a cell broadcasting technology according to an exemplary embodiment of the present invention.

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

100/1 to 100 / n: mobile communication terminal 200/1 to 200 / n: base station

300: mobile communication switching center 400: data communication network

500: broadcast server 550: search server

600: search service server

There may be a plurality of embodiments of the present invention, and a preferred embodiment will be described in detail below with reference to the accompanying drawings. Those skilled in the art will be able to better understand the objects, features and advantages of the present invention through this embodiment.

1 is a block diagram of an information retrieval service system suitable for retrieving information in a mobile communication terminal using a cell broadcasting technology according to the present invention.

As shown in Fig. 1, the information retrieval service system includes a plurality of mobile communication terminals 100/1 to 100 / n: 100, a base station 200/1 to 200 / n: 200, and a mobile communication switching center 300. And an information retrieval service server 600 including a data communication network 400 and a broadcast server 500 and a retrieval server 550.

The mobile communication terminal 100 is a mobile communication terminal (for example, a cellular phone, a PCS, a PDA, an IMT-2000, etc.) possessed by an information provider and a service user using information provided by the information provider. Stores the information provided to the service user, receives the broadcast message provided by the broadcast server 500 through the search server 550, and the mobile communication terminal 100 of the information provider according to the search request of the broadcast server 500 Has a data service function for receiving information stored in the search server 550.

The base station 200 provides a data communication service between the mobile communication terminal 100 and the mobile communication switching center 300 in its service area (i.e., cell), and each of the mobile communication switching center 300 includes a plurality of base stations ( And a base station controller in charge of 200, and the base station 200 based on the broadcast area (for example, cell unit, region unit) received from the broadcast server 500 by the broadcast message received from the broadcast server 500. Search for.

In addition, when there is a response signal from the mobile communication terminal 100 of the information provider that has received the broadcast message from the broadcast server 500, the mobile communication switching center 300 stores the information stored in the mobile communication terminal 100 of the information provider. Is received and transmitted to the broadcast server 500, and the information transmitted to the broadcast server 500 will be provided to the mobile communication terminal 100 of the service user who requests the information search by the search server 550.

The data communication network 400 is composed of a WAP (Wireless Application Protocol) for providing a wireless data service.

The broadcast server 500 receives the search information of the service user and the search area through the search server 550, sets the received search information as a broadcast message, and determines the number of search areas to broadcast the first search area. Set to local. The broadcast message and the broadcast area set by the broadcast server 500 are provided by the mobile communication switching center 300 through the data communication network 400 using the cell broadcast service technique of the broadcast server 500.

In addition, the broadcast server 500 transmits a broadcast message and a broadcast area to the mobile communication switching center 300, counts a preset time, and determines whether there is a response signal of the information provider mobile communication terminal 100 included in the broadcast area. To judge.

In this case, the cell broadcast service technique uses a paging or traffic channel in a specific region (for example, cell unit or region unit) corresponding to a broadcasting region provided by the broadcasting server 300 of the mobile communication switching center 300. Is provided to all mobile communication terminals 100 included in a specific area which is a broadcasting area.

The search server 550 receives the search reference information and the search area input through the mobile communication terminal 100 of the service user, provides the search server with the broadcast server 500, and matches the broadcast message set by the broadcast server 500. The information stored in the mobile communication terminal 100 storing the information is received through the mobile communication switching center 300 and the broadcast server 500 and displayed on the display window of the mobile communication terminal 100 of the service user.

An information retrieval service system having the configuration as described above will be described for the process of retrieving information in the mobile communication terminal according to the present invention.

2 is a flowchart illustrating a process of searching for information in a mobile communication terminal using a cell broadcasting technology according to an exemplary embodiment of the present invention.

First, the service user accesses the search server 550 through the mobile communication terminal 300 and the data communication network 400 such as the WAP using the mobile communication terminal 100 (S301).

The service user inputs the search reference information that the service user wants to search and at least one search area to search for using the search window provided from the search server 550 to the mobile communication terminal 100 (S302). The information is provided to the search server 300 through the mobile communication switching center 300 and the data communication network 400 (S303).

The search server 550 provides the search reference information and the search area information provided from the mobile communication terminal 100 of the service user to the broadcast server 500, and the broadcast server 500 provided with the search reference information and the search area. ) Sets the search reference information as a broadcast message by using the cell broadcast service technique, sets the first search region among the search regions to be searched by the service user as the broadcast region, and transmits it to the mobile communication switching center 300 (S304). S306).

The mobile communication switching center 300 receiving the information provided from the broadcast server 500 searches for the base station 200 corresponding to the broadcasting area set by the broadcast server 500, and performs mobile communication included in the found base station 200. The terminal 100 searches for and transmits the broadcast message set by the broadcast server 500 to the searched mobile communication terminal 200 (S307).

After counting the preset time, the broadcast server 550 determines whether there is a response signal from the mobile communication terminal 100 receiving the broadcast message (S308 and S309).

In this case, the user of the mobile communication terminal 100 receiving the broadcast message determines whether the information stored in the mobile communication terminal 100 matches the broadcast message.

As a result of the determination, when the broadcast message and the information stored in the mobile communication terminal 100 coincide with each other, the user who has received the broadcast message transmits the information stored in the mobile communication terminal 100 to the mobile communication terminal 100 using the mobile communication terminal 100. When the broadcast message and the information stored in the mobile communication terminal 100 do not match through the switching center 300 and the broadcast server 500 and the information stored in the mobile communication terminal 100 does not match, the user who received the broadcast message is a mobile communication terminal. No information stored in 100 is sent to search server 550.

As a result of the determination in step 309, when there is no response signal from the mobile communication terminal 100 that has sent the broadcast message, the broadcast server 500 determines whether there is more search area among the information provided by the search server 550. (S310).

As a result of the determination of step 310, when there is a search area provided by the search server 550, the broadcast server 500 sets a second search area of the search areas provided from the search server 550 as a broadcast area ( S309), the above steps (306, 307, 308, 309) are performed.

When there are no more search areas provided by the search server 550, the cell broadcast server 500 searches for search reference information on the display window of the mobile communication terminal 100 of the service user who requested the search through the search server 550. Displays a message that there is no information matched to (S312, S316).

As a result of the determination in step 309, when there is a response signal from the mobile communication terminal 100 that has sent the broadcast message, the broadcast server 500 stores the information stored by the user of the mobile communication terminal 100 receiving the broadcast message. The information received through the mobile communication switching center 300 and the data communication network 300 is displayed on the display window of the service user's mobile communication terminal 100 through the search server 550 (S313 to S316).

As described above, the present invention uses the broadcast message which is the search reference information provided by the service user and the information stored in the mobile communication terminal of the information provider included in the broadcasting area by using the broadcast area which is the search area provided by the service user. By searching and providing the searched information to the service user, when the service user wants to be provided with the information, there is an effect that the user can search the information provider located near the current location of the service user and search the information provider located in the specific area. .

In addition, since the present invention does not have a periodic location registration process of the information provider mobile communication terminal, it consumes less resources of the mobile communication network, thereby providing various services to service users, and storing a plurality of service providing means to service various information. It is possible without the means, thereby reducing the cost.

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

Claims (3)

A search information service method for providing search service information provided by an information provider corresponding to search reference information requested by a service user to a service user using a data communication network, By using any mobile communication terminal and the data communication network, a service user Inputting the search reference information and a search region; Requesting the search information by transmitting the input search reference information and a search area to a search service server through the data communication network; Providing the broadcast message to any mobile communication terminal included in the broadcast area by setting the search reference information as a broadcast message and setting the search area as a broadcast area; When there is a response signal from the mobile communication terminal of the information provider for the broadcast message, collecting information stored in the mobile communication terminal with the response signal for a predetermined time and providing the service user; And And displaying the collected information on the mobile communication terminal of the service user through the data communication network. The method of claim 1, wherein the search area input by the service user is at least one. The information retrieval method of claim 1, wherein the information retrieval method is: Selecting one of the input plurality of search areas to set a broadcast area and transmitting the broadcast message to a mobile communication terminal of the information provider included in the broadcast area; When there is no response signal from the mobile communication terminal of the information provider for the broadcast message, repeatedly transmitting the broadcast message with respect to the input search area; And And repeating the transmission process until there is a response signal from the mobile communication terminal of the information provider.