KR20040035521A - System and Method for Notifying a Neighboring Friend in Mobile Communication Network - Google Patents

Abstract

PURPOSE: A friend informing service method using a mobile communication network and a system therefor are provided to inform a mobile terminal of a subscriber as a short message that a set friend exists near the subscriber when the mobile terminal of the friend is adjacent to the position of the subscriber. CONSTITUTION: A mobile terminal(110) performs location registration with respect to a mobile communication network, subscribes for a friend informing service, sets friend informing objects, and receives the friend informing service by wireless. If a mobile terminal(210) which is a friend informing object is located with the mobile terminal(110) in the same location, a friend informing server(240) informs the mobile terminal(110) that the mobile terminal(210) is adjacent. A friend informing database(250) updates and stores information of the mobile terminal(110) and current location states of the mobile terminal(110) in real time.

Description

System and Method for Notifying a Neighboring Friend in Mobile Communication Network}

The present invention relates to a friend notification service method and system using a mobile communication network, and more particularly, a subscriber sets a mobile terminal of a friend who wants to receive a notification service, and if the mobile terminal set where the subscriber is located is adjacent to the subscriber. The present invention relates to a friend notification service method and system using a mobile communication network, which can notify a SMS text message that a friend set as a mobile terminal is near.

As mobile communication develops, additional types of additional services are provided to mobile terminals in addition to phone calls using mobile communication networks. It provides additional services such as making cash payments using a mobile terminal, downloading a game program to access a wireless Internet, executing a game, or sending an SMS text message to a counterpart.

1 is a configuration diagram schematically showing a configuration of a conventional mobile communication system.

The conventional mobile communication system 100 includes a mobile terminal 110, a wireless base station 120, a mobile communication switching center 130, SMS center 140 and the like.

The mobile terminal 110 is a terminal that not only performs a phone call in a wireless communication with a counterpart via a mobile communication network but also receives additional services such as an SMS text service.

The wireless base station 120 includes a base station transmission system (BTS) 122, a base station controller (BSC) 124, a repeater (Cell Enhancer) (not shown), and the like. Here, the base station transmitter 122 is arranged in units of cells and transmits a call request generated by the mobile terminal 110 to the mobile communication switching station 130 or exists in a cell area under its control ( Location registration to determine the location of 110). The base station transmitter 122 may obtain information such as latitude and longitude at which the base station transmitter 122 is located from a global positioning system (GPS) (not shown), and the position information of the base station transmitter 122 may be obtained from the forward link call channel. The system parameter message is transmitted to the mobile terminal 110. The mobile terminal 110 may register new location information by calculating the moving distance of the mobile terminal 110 itself using the location information of the base station transmitter 122 of the cell to which the mobile terminal 110 belongs.

Location registration is a processing procedure for informing the mobile communication switching station 130 of the location, status, identifier, slot period, and other characteristics of the mobile terminal 110 through the base station transmitter 122. The base station transmitter 122 This is a procedure for effectively calling the mobile terminal 110 when the incoming call is set to 110. The location registration of the mobile terminal 110 is performed when the mobile terminal 110 is powered on and off, when the mobile terminal 110 moves between the mobile communication switching stations 130, and the parameters of the mobile terminal 110. Is carried out when is changed.

The base station controller 124 performs various functions necessary for radio call processing such as handoff while controlling and managing a plurality of base stations. The base station controller 124 also transmits subscriber information of the location registered mobile terminal 110 to the mobile communication switching center 130.

The mobile communication switching center 130 has a control function for allowing the wireless base station 120 to operate efficiently and an interworking function with an exchange of a public telephone network. When the mobile communication switching center 130 registers the location of the mobile terminal 110 through the wireless base station 120, the visitor location register (VLR) in the mobile communication switching station 130 is referred to as 'VLR'. After temporarily storing subscriber information of the mobile terminal 110 in 134, the mobile device 110 requests a location registration of the mobile terminal 110 to a home location register (HLR). .

Here, the HLR 132 is a database that stores a service profile regarding subscriber information of a user of the mobile terminal 110. The HLR 132 includes a subscriber's telephone call and a mobile identification number (MIN) of the mobile terminal 110. It has information about the Electronic Serial Number (ESN) and the type of service. The HLR 132 stores a subscriber information including information of the wireless base station 120 in which the mobile terminal 110 is located and the mobile communication switching center 130. The mobile communication switching center 130 is composed of a control unit, a call path unit and a peripheral device, and also has a charging data collection function for the mobile terminal 110.

That is, in the mobile communication system 100 configured as described above, the mobile communication network subscriber not only performs a phone call using the mobile terminal 110 but also composes and transmits a message to be transmitted to the other party using a keypad provided in the mobile terminal 110. It also performs additional functions. In the SMS text transmission function, a short message generated by the mobile terminal 110 is transmitted to the mobile communication switching center 130 through the wireless base station 120 as a radio signal, and received by the mobile communication switching center 130 from the SMS center 140. By transmitting together with the number of the mobile terminal, the SMS center 140 converts the short message into a short message and transmits the received mobile terminal to the mobile communication switching center having jurisdiction over the mobile terminal.

However, a mobile subscriber can carry out a mobile phone call in the service area of a wireless base station 120 that manages the mobile terminal 110, in an arbitrary department store while carrying the mobile terminal 110, or make the above-mentioned SMS text message. When trying to transmit, even if a friend or acquaintance of the user of the mobile terminal 110 is located close to, it is often passed without knowing. Particularly, if he wanted to monitor his position among acquaintances, he could monitor it by requesting an errand center or installing a wiretap on the person to be monitored.

The mobile terminal 110 is a communication means that most people possess and make phone calls using a mobile communication network. The mobile terminal 110 using the mobile communication network may track the position of the mobile terminal through the wireless base station 120 having jurisdiction even when moving.

Therefore, a technology for knowing the location of a friend who is adjacent to the site or monitoring the monitoring target is required at a low cost by using the location tracking function of the mobile terminal 110.

In order to meet the above requirements, the present invention sets a mobile terminal of a friend that a subscriber wants to receive a notification service, and if a mobile terminal set where the subscriber is located is close to a friend set as the mobile terminal of the subscriber, An object of the present invention is to provide a method and a system for notifying a friend using a mobile communication network, which can be notified by an SMS text message.

1 is a configuration diagram schematically showing the configuration of a conventional mobile communication system,

2 is a view schematically showing the configuration of a friend notification service system according to an embodiment of the present invention;

3 is a block diagram showing an internal configuration of a mobile terminal;

4 is a block diagram schematically showing an internal configuration of a friend notification server;

5 is a flowchart illustrating a friend notification service method using a mobile communication network according to an embodiment of the present invention;

6 illustrates a mobile terminal located in the same service area of a mobile communication network;

7 is a view showing the result provided by the friend notification server on the LCD screen of the mobile terminal.

<Description of Symbols for Main Parts of Drawings>

110: mobile terminal 120: wireless base station

130: mobile communication switching center 132: HLR

134: VLR 140: SMS Center

200: friend notification service system 210, 211: mobile terminal

220: wireless base station 230: mobile communication switching center

232: HLR 240: Friend Notification Server

250: friend notification database 302: program memory

304: key input unit 306: LCD display unit

308: data storage 310: mode state storage

312: subscriber information storage unit 314: microprocessor

316: DSP 318: baseband converter

320: speaker 322: microphone

324: antenna 326: RF signal processing unit

410: program storage unit 420: memory

430 control unit 440 display unit

450: NIC 460: database server

470: key input unit

In order to achieve the above object, the present invention, in the friend notification service system for providing a friend notification service using a mobile communication network, perform a location registration for the mobile communication network, register as a subscriber to the friend notification service, friends A mobile terminal configured to wirelessly receive the friend notification service by setting a notification target; A friend performing a function of notifying the mobile terminal of the friend notification target that the mobile terminal of the friend notification target is adjacent to when the mobile terminal of the friend notification target is located in the same area as the mobile terminal by using the location tracking of the mobile terminal; A notification server; And a friend notification database, which stores and updates information on the mobile terminal registered as the friend notification service subscriber and the location state of the current terminal in real time.

In addition, according to another object of the present invention, a friend notification service method of the system configured as described above, the method comprising the steps of: (a) the mobile terminal accesses the friend notification server to register as a subscriber to the friend notification service; (b) storing subscription registration information of the mobile terminal subscribed to the friend notification server in the friend notification database; (c) performing a mobile communication registration procedure including location registration to the mobile communication network in which the mobile terminal is currently located; (d) receiving and storing, by the friend notification server, a current location of the mobile terminal from the mobile communication network; (e) the friend notification server searching whether the friend notification target mobile terminal exists in the same area as the current location of the mobile terminal; And (f) if the friend notification target mobile terminal exists, transmitting an SMS text message indicating that the friend notification target mobile terminal is in close proximity to the mobile terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 schematically illustrates a configuration of a friend notification service system according to an exemplary embodiment of the present invention.

Friend notification service system 200 according to Figure 2 is a mobile terminal 110, wireless base station 120, mobile communication switching center 130, SMS center 140, mobile terminals 210, 211, third party wireless base station 220 ), A third party mobile communication switching center 230, a friend notification server 240, a friend notification database 250 and the like.

For example, the mobile terminal 110 is a " 011 " mobile communication subscriber terminal that a user carries and requests a friend notification service. The mobile terminal 210 to be the friend notification target is the same " 011 " mobile communication network subscriber terminal, and is a terminal carried by a known friend or friend.

In addition, the "011" mobile network operator can provide the location information of the mobile terminal with each other through a technology alliance with another mobile network, that is, the "016" mobile network operator, thereby providing a friend notification service to each mobile network subscriber. You can distribute the profit accordingly.

Therefore, the mobile terminal 211 is a subscriber station of another mobile communication network, for example, a "016" mobile communication network, which is a terminal to which a friend is notified, and is a terminal possessed by a wife or a friend. The location information of the mobile terminal 211 is provided by the third party mobile telecommunication switching center 230 to the friend notification server 240.

The mobile terminal 110 requesting a friend notification and the mobile terminals 210 and 211 to be friend notification targets register as a subscriber to the friend notification server 240 through the "NATE" menu or the "ez-i" menu. Friend notification service can be provided.

The third-party wireless base station 220 and the third-party mobile communication switching center 230 perform the same functions as the wireless base station 120 and the mobile communication switching center 130 shown in FIG.

Friend notification server 240 is registered as a friend notification service subscriber for a plurality of mobile terminals 110 and friend mobile terminals (210, 210 '), and the mobile terminal of the friend notification target using the location tracking of the mobile terminal When located in the proximity of the mobile terminal requesting a friend notification, the mobile terminal requesting a friend notification performs a function of informing the SMS text message that the mobile terminal of the friend notification target is adjacent.

The friend notification database 250 updates and stores information on the mobile terminal registered as a friend notification service subscriber and the current state of the terminal in real time.

The HLR 232 performs the same function as the HLR 132 of FIG. 1, and is a database that stores a service profile related to subscriber information of the mobile terminal 211. The mobile terminal 211 includes a subscriber's telephone call. The terminal has a terminal identification number (MIN), a terminal unique number (ESN), and information on a service type. The HLR 232 performs a function of storing subscriber information including information of the wireless base station 220 in which the mobile terminal 211 is located and the mobile communication switching center 230. The VLR 234 also performs the same function as the VLR 134 shown in FIG. 1.

3 is a block diagram illustrating an internal configuration of the mobile terminals 110, 210, and 211.

The mobile terminals 110, 210, and 211 include a program memory 302, a key input unit 304, an LCD display unit 306, a data storage unit 308, a mode state storage unit 310, and a subscriber information storage unit 312. , A microprocessor 314, a digital signal processor (DSP) 316, a baseband converter 318, a speaker 320, a microphone 322, and an antenna 324. And an RF signal processing unit 326.

The program memory 302 stores protocol software for implementing functions of the terminal itself and processing messages transmitted and received from the network. In particular, when a friend notification service menu is selected from among a plurality of menus, the program memory 302 is wirelessly connected to the friend notification server 240. The access program is stored.

The key input unit 304 is provided with a numeric key for inputting a number such as a telephone number and a menu selection button for executing a friend notification service function according to the present invention. The LCD display unit 306 displays the operation state of the terminal, including the power supply state, the radio wave reception intensity, the date and time, and the data storage unit 308 serves as a data buffer when the terminal operation program is executed. In addition, the number input by the key input unit 304 temporarily stores or stores data such as text or images received from the terminal from the outside. The mode state storage unit 310 stores the operation mode of the current terminal selected by the key input unit 304 as a state flag.

Subscriber Identity Module (SIM) 312 stores subscriber registration information. That is, the subscriber information is a unique number assigned to each subscriber station in the mobile communication network, and the subscriber information storage unit 312 is inserted in the form of a card. Since this is a general content used in a mobile communication network, a description thereof will be omitted.

The microprocessor 314 controls the operation of the terminal based on the state flag stored in the mode state storage unit 310. In particular, when the friend notification service menu is selected by the key input unit 304, the microprocessor 314 controls a function for wirelessly connecting to the friend notification server 240 via the mobile communication network. The digital data is transmitted to the baseband converter 318 (TX DATA).

The DSP 316 is a digital signal processing processor that codes or decodes a voice signal, performs an equalization function to remove multipath noise, and performs an acoustic data processing function. In addition, the DSP 316 exchanges voice data SPEECH with the baseband converter 318 and receives digital data RX DATA from the baseband converter 318.

The baseband converter 318 converts the signals transmitted and received between the RF signal processor 326 and the DSP 316, the speaker 320, and the microphone 322 into baseband signals, and converts the digital-to-analog signals. Performs a function such as analog-to-digital conversion processing, the speaker 320 outputs the voice signal output from the baseband converter 318 as an audible sound, the microphone 322 converts the user's voice input into an electrical signal do. The baseband converter 318 transmits the transmission data (TXIQ) to the RF signal processor 326, and controls the power (POWER) of the RF signal processor 326 or automatically controls its gain (AGC). The RF signal processor 326 receives the received signal RXIQ.

The antenna 324 transmits and receives a radio signal, and the RF signal processor 326 demodulates and amplifies an RF signal received by the antenna 324, modulates a transmission signal applied from the baseband converter 318, and then RF signal processor. Output to (326).

4 is a block diagram schematically showing the internal configuration of the friend notification server 240.

The friend notification server 240 may include a program storage unit 410, a memory 420, a controller 430, a display unit 440, a network interface card (NIC) 450, A database server 460, a key input unit 470, and the like.

The program storage unit 410 is an SMS text message indicating that the mobile terminal 110, 210, or 211 registered as a friend notification service subscriber is adjacent to the mobile terminal of the friend notification target within a predetermined area based on the location information. Your friend notification program is stored. The friend notification program may be implemented in various ways according to the operating system (OS) of the friend notification server 240. For example, the friend notification program may be implemented in a 'C' programming language or an object-oriented 'C ++' or 'Java' programming language. .

The memory 420 temporarily stores data processed by the controller 430. The control unit 430 controls the overall device, and in particular, when a friend notification service request is received from the mobile terminal 110 through the mobile communication switching station 130, the friend according to the friend notification program stored in the program storage unit 410. If there is a mobile terminal (210, 210 ') of the friend notification target having the location information of the same area by searching the friend notification database 250 based on the location information of the mobile terminal 110 requesting the notification service, the friend notification Control of notifying the SMS text message that the target mobile terminals 210 and 210 'are adjacent to each other.

The display unit 440 is provided in the form of a monitor so that an administrator who manages the friend notification server 240 may view and process the friend notification service request as well as the processing status according to the key input from the key input unit 470. Displays the status etc. The NIC 450 is a communication module that provides a communication interface for communication with the mobile switching centers 130 and 230.

The database server 460 controls data input and output of the friend notification database 250. The database server 460 registers and stores subscriber information of the mobile terminals 110, 210, and 211 in the friend notification database 250 when registering a friend notification service or located in the same area from the friend notification database 250 when requesting a friend notification service. It reads the information of the mobile terminal. In addition, when the correction data is input by the key input unit 470 performs a function of updating and storing the data stored in the friend notification database 250.

The database server 460 is a software program of the telephone number search server 260 using, for example, an "Oracle9i DBRelease 2" server program of Oracle or a server program of "MS-SQL Server 2000" of Microsoft. Is installed as

The key input unit 470 is used for inputting data when the administrator manually adds or updates information information stored in the friend notification database 250. In addition, when updating the friend notification program of the program storage unit 410 is used for data input.

Next, the operation of the friend notification service system 200 configured as described above will be described in detail with reference to FIG. 5.

5 is a flowchart illustrating a friend notification service method using a mobile communication network according to an exemplary embodiment of the present invention.

Although not shown in FIG. 5, the friend notification server 240 has a web site so that subscribers of the mobile terminals 110, 210, and 211 may access the Internet to register a friend notification service. The friend notification server 240 is technically interlocked so as to be wirelessly connected to the mobile terminals 110, 210, and 211 in cooperation with the mobile communication service provider. Accordingly, although not shown, the friend notification server 240 is physically connected to the mobile communication switching centers 130 and 230 by the WAP gateway and the network interworking device.

Friend notification server 240 receives a friend notification service registration through the Internet from the subscriber of the mobile terminal (110, 210, 211) (S510). The subscribers of the mobile terminals 110, 210, and 211 access the website provided by the friend notification server 240 through the Internet to register the friend notification service.

The website provided by the friend notification server 240 is composed of phrases and images guiding the friend notification service, a registration menu for registering his mobile terminal, and a notification for inputting a phone number for friend notification. The configuration includes a target input menu.

If the friend notification server 240 receives registration of the friend notification service from subscribers of the mobile terminals 110, 210, and 211 connected to the Internet, the friend notification server 240 corresponds to the phone number of the registered registration mobile terminal and the phone number of the notification target mobile terminal. To be stored in the friend notification database (250).

Friend notification server 240 is a server operated by a mobile service provider or, when operated separately from the mobile communication network, by affiliated with a mobile communication provider, basically the friend notification server to the mobile terminal (110, 210, 211) subscribed to the mobile communication network A menu for wirelessly accessing the terminal 240 may be provided, and the user of the mobile terminals 110, 210, and 211 may select the friend notification service from a plurality of menus provided in the mobile terminal.

For convenience of description of the operation according to the present invention, the mobile terminal 110 is a mobile terminal registered in the friend notification service, and the mobile terminal 211 of the other mobile communication network is different from the other mobile terminal 210. Assume that

First, a process in which the mobile terminal 110, which is a subscriber of the mobile communication network, registers with the friend notification service will be described.

That is, in the mobile terminal 110, the user operates the key input unit 304 of the mobile terminal 110 to select a connection menu for wireless Internet, for example, a "NATE" menu of SK Telecom, and notify a friend of a mobile operator server. Attempt to connect to server 240.

When a command regarding a connection to the friend notification server 240 is input through the wireless Internet by the operation of the key input unit 304, the mobile terminal 110 transmits a connection request signal according to a program of the program memory 302. 324 transmits a radio signal.

The access request signal wirelessly transmitted from the mobile terminal 110 is received by the wireless base station 220 and transmitted to the mobile communication switching center 230 in binary code form data. The mobile communication switching center 230 converts the connection request data in the form of binary code into packet data and transmits the packet to the friend notification server 240.

The friend notification server 240 establishes a connection to the mobile terminal 110 via the mobile communication network in response to the connection request data, so that the mobile terminal 110 connects to the friend notification server 240. In addition, the mobile terminal 110 registers with the friend notification service (S510).

In the friend notification server 240, the controller 430 provides a screen regarding a friend notification service to the mobile terminal 110 according to a friend notification program. In this case, the screen related to the friend notification service is a screen for selecting a friend notification service registration and a friend notification service release. When the friend notification service registration is selected in the mobile terminal 110, the friend notification server 240 requests the information of the mobile terminal 110 to the mobile communication switching center 130 that manages the mobile terminal 110.

The mobile communication switching center 130 receives a request for information on the mobile terminal 110 from the friend notification server 240, and reads subscriber information on the mobile terminal 110 from the HLR 132 to the friend notification server 240. Send it.

The friend notification server 240 receives the subscriber information of the mobile terminal 110 from the mobile communication switching station 130 and stores the subscriber information in the friend notification database 250 and calls the mobile terminal 110 as a friend notification target. Provide an input form to enter a number. When the mobile terminal number of the friend notification target is input from the mobile terminal 110, the friend notification server 240 stores the friend notification database 250 corresponding to the phone number of the mobile terminal 110 (S520). Through the above process, the mobile terminal 110 registers with the friend notification service, and a plurality of mobile terminal numbers of the friend notification target may be input.

On the other hand, when the mobile terminal 110 is registered in the friend notification service, the mobile terminal 110 is located in the alpha region that the wireless base station has jurisdiction, as shown in Figure 6, the mobile terminal 110 performs a registration procedure for the base station 220 do.

The microprocessor 314 of the mobile terminal 110 identifies the wireless base station 120 to which it belongs based on the level of each demodulation signal received from the wireless base station 120 on the broadcast channel (BCCH), and then the LAPDm protocol. Accordingly, the registration procedure is performed by transmitting its subscriber information to the corresponding wireless base station 120.

When the terminal information is received from the mobile terminal 110, the wireless base station 120 transmits the terminal information to the base station controller 130. The base station controller 130 transmits the terminal information to the HLR 132 via the mobile communication switching center 130. ), It is checked whether the mobile terminal 110 is legally registered.

Here, when the wireless base station 120 receives a signal indicating that the mobile terminal 110 is normally registered from the base station controller 130 and an encryption code that can be used by the terminal, the wireless base station 120 receives the corresponding mobile terminal 110. Registration processing is performed in a communication enabled state (S530).

Thereafter, the mobile terminal 110 waits for the wireless base station 120 to execute a data request at any time, and the wireless base station 120 remains in a waiting state for processing a data request from the mobile terminal 110. do.

On the other hand, when a wife or friend who possesses the mobile terminal 210 of a friend notification target enters an arbitrary area, for example, an alpha area controlled by the wireless base station as shown in FIG. 6, the mobile terminal 210 controls the current location. The base station 120 performs registration as described above.

Accordingly, the base station 120 connects the mobile terminals 110 and 210 so that they are in a call waiting state, and at the same time, the latitude, longitude, and distance parameters of the base station 120 are transmitted through the system parameter message. Send to. It also sends the time the message was sent.

When the mobile terminal 110 or 210 receives the location information and time from the wireless base station 120, the mobile terminal 110, 210 measures the received time and measures the distance from the wireless base station 120 accordingly. When the circle is drawn around the wireless base station 120 using the measured distance as shown in FIG. 6. That is, the position of the mobile terminals 110 and 210 can be confirmed at one of the circumferences of the circle.

That is, the wireless base station 120 divides the serviceable area into three areas, such as an alpha, beta, and gamma area, with respect to the wireless base station 120, as shown in FIG. 6, and transmits signal power to each of these areas. In addition to transmitting signal power, a PN (Pilot Number) value is transmitted. The PN value includes base station information for identifying the wireless base station 120 and alpha, beta, and gamma regions centering on the wireless base station 120. Sector information for identification is included. Accordingly, the friend notification request mobile terminal 110 and the friend notification target mobile terminal 210 in the service area receive the corresponding PN value and separately receive signals of all areas transmitted from the base station 120 by having a confidence. By measuring the signal power of all areas sent to the area, it is possible to know its current location.

That is, the mobile terminal 210 and the mobile terminal 110 can determine their current position by checking the magnitude of the signal power in each of these areas and arranging them in a large order. The position determination and the distance measurement value with the base station 120 measured in the above process is calculated one position of the circumference of FIG. 6, the wireless base station 120 is a mobile terminal (within a certain distance from the mobile terminal 110) The location information of 210 is transmitted to the friend notification server 240. In this case, the location information is transmitted in latitude and longitude.

Friend notification server 240 requests the location information of the mobile terminal 110 to the mobile communication switching center (130). The mobile communication switching center 130 reads the current location information of the mobile terminal 110 through the HLR 132 or the VLR 134 in response to a request for the location information of the mobile terminal 110 from the friend notification server 240. It delivers to the notification server (240). Friend notification server 240 receives the location information of the mobile terminal 110 and stores it in the friend notification database 250 (S540).

The friend notification server 240 requests and updates the current location information of the subscriber mobile terminal 110 to the mobile communication switching center 130 at predetermined time intervals.

The friend notification server 240 searches the friend notification database 250 based on the location information of the mobile terminal 110 requesting the friend notification service, and searches the friend notification database 250 in the same area as the location of the mobile terminal 110. Check whether there is (S550).

If the friend notification server 240 searches for the friend notification database 250 and the mobile terminal 210 of the friend notification target exists in the same area as the location information of the mobile terminal 110 (S560), the mobile terminal of the friend notification target. The text message 210 is transmitted to the mobile terminal 110 requesting a friend notification service via the SMS center 140 as an adjacent text message (S570).

That is, the friend notification server 240 transmits a message indicating that the mobile terminal 210 of the friend notification target is adjacent to the SMS center 140, and the SMS center 140 receives the message from the friend notification server 240. A message is converted into an SMS text message and transmitted to the mobile terminal 110 via the mobile communication switching center 130.

Therefore, in the mobile terminal 110 of the user, the microprocessor 314 displays the SMS text message "Friends 011-450-9253 are nearby" on the LCD display unit 306 as shown in FIG. Provide the number and guide the user by voice when connected.

Meanwhile, even when the mobile terminal 211 to be the friend notification target is a terminal subscribed to another mobile communication network, that is, a "016" mobile communication network, the friend notification server 240 may transmit the location information of the mobile terminal 211 to a third party mobile communication. If the mobile station 110 is stored in real time after being received from the switching center 230 and is located within the same area as the mobile terminal 110 requesting the friend notification service, the friend mobile terminal is adjacent to the mobile terminal 110 in the same manner. Notify by SMS text message.

In addition, when the mobile terminal (110, 210, 211) has a GPS receiver, the friend notification server 240 may provide a friend notification service based on the GPS location information.

According to an embodiment of the present invention, if a subscriber sets a mobile terminal of a friend who wants to receive a notification service, and if the mobile terminal set where the subscriber is located is adjacent, the friend set as the mobile terminal of the subscriber is near. A friend notification service method and system using a mobile communication network that can be notified by text message can be realized.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when the mobile terminal to be notified of the notification service is near, the SMS text message or voice is notified immediately so that the user can immediately contact or meet. There is no need to provide a separate device for monitoring the mobile terminal to be notified.

Claims (12)

In the friend notification service system that provides a friend notification service using a mobile communication network, A mobile terminal that performs location registration on the mobile communication network, registers as a subscriber to the friend notification service, sets a friend notification target, and wirelessly receives the friend notification service; A friend performing a function of notifying the mobile terminal of the friend notification target that the mobile terminal of the friend notification target is adjacent to when the mobile terminal of the friend notification target is located in the same area as the mobile terminal by using the location tracking of the mobile terminal; A notification server; And Friend notification database that stores and updates in real time the information on the mobile terminal registered as the friend notification service subscriber and the current state of the terminal Friend notification service system using a mobile communication network comprising a. The method of claim 1, wherein the mobile communication network, A mobile communication switching station that performs a control function for efficiently operating the mobile communication network and an exchange function for a call request of the mobile terminal; A base station transmitter arranged in units of cells and configured to transmit a call request generated by the mobile terminal to the mobile communication switching center or locate a location of the mobile terminal existing in a cell area under its control; And And a base station controller which performs various functions required for radio call processing including handoff while controlling and managing a plurality of base stations, and transmits subscriber information of the location-registered mobile terminal to the mobile communication switching center. Friend notification service system using a communication network. The method of claim 1, A home location register (HLR) having information on a mobile telephone number of a subscriber of the mobile communication network, a mobile identification number (MIN), an electronic serial number (ESN), and a service type of the mobile terminal. Home Location Register) When the location registration of the mobile terminal is performed, further includes a Visitor Location Register (VLR) for temporarily storing subscriber information of the mobile terminal, Location tracking for the mobile terminal of the friend notification server is a friend notification service system using a mobile communication network, characterized in that performed based on the location information registered in the home location register and the visitor location register. The method of claim 1, Location tracking for the mobile terminal of the friend notification server is a friend notification service system using a mobile communication network, characterized in that performed based on the GPS location information of the mobile terminal. The method of claim 1, An additional SMS center for converting a message to be sent into an SMS message and transmitting the same; The friend notification server is a friend notification service system using a mobile communication network, characterized in that for transmitting an SMS text message to the mobile terminal that the mobile terminal of the friend notification target adjacent. The method of claim 1, The mobile terminal, Protocol software for implementing functions of the terminal itself and processing messages transmitted and received with the network is stored, and in particular, when a friend notification service menu is selected among a plurality of menus, a program for storing an access program wirelessly connected to the friend notification server is stored. Memory 302; A key input unit 304 having a numeric key for inputting a number such as a telephone number and a menu selection button for executing a friend notification service function according to the present invention; An LCD display unit 306 for displaying an operating state of the terminal, including a power supply state, a radio wave reception intensity, a date and time; A data storage unit 308 which serves as a data buffer when the terminal operation program is executed and also temporarily stores the number input by the key input unit 304 or stores text or image data received from the external terminal; A mode state storage unit 310 which stores an operation mode of the current terminal selected by the key input unit 304 as a state flag; A subscriber information storage unit (SIM) 312 which stores a unique number assigned to each subscriber subscriber terminal subscribed to the mobile communication network; A microprocessor 314 for controlling a function for wirelessly connecting to a friend notification server 240 via the mobile communication network when the friend notification service menu is selected by the key input unit 304; A digital signal processing processor (DSP) 316 for coding or decoding a speech signal, performing an equalization function to remove multipath noise, and performing an acoustic data processing function and the like; A baseband converter 318 for converting the transmitted and received signals into baseband signals; A speaker 320 for outputting an audio signal output from the baseband converter 318 as an audible sound; A microphone 322 for converting a user's voice input into an electrical signal; An antenna 324 for transmitting and receiving wireless signals; And RF signal processor 326 for demodulating and amplifying the RF signal received by the antenna 324 and modulating and transmitting a transmission signal applied from the baseband converter 318. Friend notification service system using a mobile communication network comprising a. The method of claim 1, The friend notification server, A program storage unit 410 for storing a friend notification program for notifying that a mobile terminal of a friend notification target is adjacent to a mobile terminal registered as a subscriber of the friend notification service on the basis of the location information; When the friend notification service is requested from the mobile terminal, the friend notification database is searched based on the location information of the mobile terminal that requested the friend notification service according to the friend notification program stored in the program storage unit 410. A control unit 430 for controlling to notify the SMS text message that the friend notification target mobile terminal is adjacent to the friend notification target mobile terminal having location information of the same area; A memory 420 for temporarily storing data processed by the controller 430; A display unit 440 for displaying a processing status of the friend notification service request; A NIC (450) for providing a communication interface for communication with the mobile communication network; A database server 460 controlling data input / output of the friend notification database 250; And A key input unit 470 used for inputting data when manually adding or updating information content stored in the friend notification database 250. Friend notification service system using a mobile communication network comprising a. The method of claim 1, The mobile communication network shares location information of a mobile terminal subscribed to each mobile communication network through a technology alliance with a third party mobile communication network, so that the mobile terminal sets the third party mobile terminal as the mobile terminal of the friend notification target. Friend notification service system using a mobile communication network. A mobile terminal that performs location registration on a mobile communication network, registers as a subscriber to a friend notification service, and sets a friend notification target to wirelessly receive the friend notification service; A friend performing a function of notifying the mobile terminal of the friend notification target that the mobile terminal of the friend notification target is adjacent to when the mobile terminal of the friend notification target is located in the same area as the mobile terminal by using the location tracking of the mobile terminal; A notification server; And a friend notification database (250) for storing and updating in real time the information on the mobile terminal registered as the friend notification service subscriber and the current state of the terminal. (a) the mobile terminal accessing the friend notification server and registering as a subscriber in the friend notification service; (b) storing subscription registration information of the mobile terminal subscribed to the friend notification server in the friend notification database; (c) performing a mobile communication registration procedure including location registration to the mobile communication network in which the mobile terminal is currently located; (d) receiving and storing, by the friend notification server, a current location of the mobile terminal from the mobile communication network; (e) the friend notification server searching whether the friend notification target mobile terminal exists in the same area as the current location of the mobile terminal; And (f) if the friend notification target mobile terminal exists, transmitting an SMS text message indicating that the friend notification target mobile terminal is adjacent to the mobile terminal; Friend notification service method using a mobile communication network comprising a. The method of claim 9, The step (a) is a friend notification service method using a mobile communication network, characterized in that the mobile terminal comprises setting the information of the mobile terminal of the friend notification target to the friend notification server to one or more. The method of claim 9, In the step (e), the friend notification server searches for the friend notification database to search for the friend notification target mobile terminal which is location information of the same sector as the mobile terminal. . The method of claim 9, The mobile communication network shares the location information of the mobile terminals subscribed to each mobile communication network through a technology alliance with a third party mobile communication network, In step (a), when the mobile terminal sets a mobile terminal to be the friend notification target in the friend notification server, the third party mobile terminal subscribed to the third party mobile communication network is also used as the mobile terminal of the friend notification target. Friend notification service method using a mobile communication network, characterized in that set to the above number.