KR20070066287A - Method and system for providing location based service in gray area - Google Patents

Abstract

A method and a system for providing a location information service of a shadow area in a mobile communication system are provided to allow a user to accurately recognize a location of the other party located in a shadow area. The first mobile terminal(110) transmits a location information message to recognize a location of a different mobile terminal. A mobile communication network(120) includes an SMSC(Short Message Service Center)(140) and an LBS(Location Based Service) server(134) and provides a short message service and a location-based service. An RF unit(150) is installed at a shadow area and stores shadow area location information, and when the RF unit(150) receives a location information request signal, it transmits the shadow area location information. The second mobile terminal(112) determines whether an RF signal has been received from the RF unit(150), and when the RF signal has been received, the second mobile terminal(112) determines whether providing of location information has been set. When providing of location information has been set, the second mobile terminal(112) transmits the location information request signal to the RF unit(150), receives the shadow area location information, and transmits a location area location information providing message to the first mobile terminal(110).

Description

Method and system for providing location information service of shadow area in mobile communication system {Method and System for Providing Location Based Service in Gray Area}

1 is a block diagram showing a schematic configuration of a mobile communication system for providing a location information service of a shadow area according to an embodiment of the present invention;

2 is a flowchart illustrating a method of providing a location information service of a shadow area in a mobile communication system according to an exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: first mobile communication terminal 112: second mobile communication terminal

120: mobile communication network 150: RF device

The present invention relates to a method and system for providing a location information service of a shadow area in a mobile communication system. More specifically, in the mobile communication system, the first mobile communication terminal transmits a location information request message to the second mobile communication terminal through the mobile communication network, and the second mobile communication terminal is located in the mobile communication network to confirm its location information. If it is unable to check its own location information by transmitting an information request signal, it transmits the location information request signal to the RF device, receives the shadow area location information from the RF device, and provides the shadow area location information according to the received shadow area location information. A method and system for providing a location information service of a shadow area in a mobile communication system for transmitting a shadow area location information providing message to a first mobile communication terminal.

 A mobile communication service provider that provides various additional services by operating a mobile communication system provides various location-based services based on the location of the mobile communication terminal that tracks and tracks the location of the mobile communication terminal using a wireless base station such as triangulation. have.

However, the method of providing a location-based service using the above-described wireless base station can not only measure the approximate location of the mobile communication terminal but also cannot accurately measure an area where the mobile communication terminal is located. In order to solve this disadvantage, a location tracking system using GPS is introduced.

The Global Positioning System began to be developed by the US Department of Defense in the early 1970s and began operation in the mid-1990s. The satellite positioning system is the most ideal navigation system that can be used throughout the earth regardless of time or weather conditions.It was originally developed for military use, but it has been rapidly expanded to civilian use due to its economic and usefulness. Is situated.

For example, various moving objects such as ships, aircrafts, and automobiles are equipped with a GPS positioning device for checking the current position and moving speed or determining a moving path. The GPS positioning device receives radio waves representing latitude, longitude, altitude, etc. from three or more satellites located in six mid-tracks to calculate the current position of the moving object, and the calculated result is output to the display of the navigation device.

Therefore, the navigation device synthesizes the current position information of the moving object by pre-stored map information, and not only the position of the moving object, but also the moving direction of the moving object, the distance to the destination, the current speed of the moving object, the path set before the user moves, It is possible to provide the user with various information necessary for driving, such as road information and a recommended route to the destination.

Meanwhile, in the conventional location-based service, when the mobile communication terminal is located in a shaded area including an inside of a building, a basement, and a subway that does not receive a GPS signal, there is a problem in that the location of the mobile communication terminal is not properly understood.

In order to solve this problem, an access channel receiver is installed in a repeater to receive a location signal from the mobile communication terminal, and to determine which repeater the mobile communication terminal belongs to by detecting a location parameter of the mobile communication terminal according to the received location signal. A method of providing the location information of a mobile communication terminal by transmitting the location information of the repeater to which the mobile communication terminal belongs to the mobile communication network has been proposed.

However, in the conventional mobile communication system, a method of providing location information using a repeater has only a general location information of the mobile communication terminal and has a problem in that it cannot accurately determine the location of the other party.

In order to solve the above problems, the present invention, in a mobile communication system, a first mobile communication terminal transmits a location information request message to a second mobile communication terminal through a mobile communication network, and the second mobile communication terminal transmits its location information. If the location information request signal is transmitted to the mobile communication network to verify its own location information, the device transmits the location information request signal to the RF device, receives the shadow area location information from the RF device, and receives the received shadow area location information. Accordingly, an object of the present invention is to provide a method and a system for providing a location information service of a shadow area in a mobile communication system transmitting a shadow area location information providing message including shadow area location information to a first mobile communication terminal.

Therefore, according to the first object of the present invention, in the mobile communication system for providing a location information service of the shaded area for identifying the location of the mobile communication terminal located in the shaded area including the inside of the building, underground and subway, the other movement A first mobile communication terminal for transmitting a location information request message to determine the location of the communication terminal; A mobile communication network including a Short Message Service Center (SMSC) and a Location Based Service (LBS) server and providing a short message service and a location based service; An RF device installed in the shadow area to store shadow area location information, and transmitting the shadow area location information when receiving a location information request signal; And determining whether the RF signal has been received from the RF device, and if determining that the RF signal has been received from the RF device, determines whether location information provision is set according to the received RF signal, and determines the location. When it is determined that the provision of information is set, the location information request signal is transmitted to the RF device, the shadow area location information is received from the RF device, and the shadow area location information is included according to the received shadow area location information. Provides a second mobile communication terminal for transmitting a shadow area location information providing message to the first mobile communication terminal through the mobile communication network.

According to a second object of the present invention, the mobile terminal includes a first mobile communication terminal, a Short Message Service Center (SMSC), and a Location Based Service (LBS) server that transmits a location information request message to determine the location of another mobile communication terminal. Installed in a shaded area including a mobile communication network, a short message service and a location-based service, an interior of a building, a basement, and a subway, and stores shaded area location information, and receives a location information request signal. Receiving the shaded region location information from the RF device and the RF device for transmitting the information, and the shaded region location information providing message including the shaded region location information according to the received shaded region location information through the mobile communication network; 1 in a mobile communication system including a second mobile communication terminal for transmitting to a mobile communication terminal A method of providing location information service in a territory, the method comprising: (a) receiving the location information request message from the first mobile communication terminal; (b) transmitting the location information request signal to the mobile communication network to identify the location of the second mobile communication terminal according to the location information request message; (c) determining whether location information is received from the mobile communication network; (d) if it is determined in step (c) that the location information has not been received, determining whether the RF signal has been received from the RF device installed in the shadow area; (e) if it is determined in step (d) that the RF signal has been received, determining whether location information provision is set in the second mobile communication terminal; (f) transmitting the location information request signal to the RF device when it is determined in step (e) that the location information provision is set; (g) receiving the shaded area location information from the RF device; And (h) transmitting a shadow area location information providing message including the shadow area location information to the first mobile communication terminal through the mobile communication network according to the shadow area location information.

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.

1 is a block diagram illustrating a schematic configuration of a mobile communication system that provides a location information service of a shadow area according to an exemplary embodiment of the present invention.

A mobile communication system for providing a location information service of a shadow area according to an exemplary embodiment of the present invention includes a first mobile communication terminal 110, a second mobile communication terminal 112, a mobile communication network 120, and an RF device 150. And the like.

The first mobile communication terminal 110 and the second mobile communication terminal 112 are wirelessly connected to the mobile communication network 120 to perform a voice call function for performing a normal voice call by wireless communication with another mobile communication terminal or a landline telephone. In addition to providing, it is a mobile communication terminal that can send and receive short messages, multimedia messages, etc. using the Short Message Service Center (SMS) 140.

To this end, the first mobile communication terminal 110 and the second mobile communication terminal 112 have a basic configuration as a mobile communication terminal for using a voice communication service and a wireless data service or a wireless Internet service provided by the mobile communication network 120. In addition, it performs a task such as creating, editing, modifying, saving, and deleting a short message or a multimedia message, and transmitting and receiving a short message or a multimedia message using the SMSC 140, and outputting a received message on the screen. Equipped with the application.

The first mobile communication terminal 110 according to the preferred embodiment of the present invention transmits a location information request message to the second mobile communication terminal 112 through the mobile communication network 120 to determine the location of the second mobile communication terminal 112. To send). Here, the location information request message preferably includes a Teleservice ID indicating the type of service requested by the first mobile communication terminal 110.

The second mobile communication terminal 112 according to a preferred embodiment of the present invention is located in a shaded area including an inside of a building, an underground, a subway, and the like, receives a location information request message from the first mobile communication terminal 110, In response to the received location information request message, a location information request signal for identifying its own location is transmitted to the LBS server 134 through the wireless base station 122.

Subsequently, the second mobile communication terminal 112 determines whether the location information is received from the LBS server 134, and if it is determined that the location information is received from the LBS server 134, includes the location information according to the received location information. The location information providing message is transmitted to the first mobile communication terminal 110 through the mobile communication network 120.

In addition, when the second mobile communication terminal 112 according to the preferred embodiment of the present invention determines that the location information is not received from the LBS server 134, it is installed in a shaded area including an inside of a building, a basement, and a subway. It is determined whether an RF signal is received from the RF device 150.

When the second mobile communication terminal 112 determines that the RF signal is received from the RF device 150, the second mobile communication terminal 112 determines whether location information provision is set in the second mobile communication terminal 112 according to the received RF signal, and determines the location. When it is determined that the provision of information is set, the device transmits the location information request signal to the RF device 150, receives the shadow area location information from the RF device 150, and includes the shadow area location information according to the received shadow area location information. The shadow area location information providing message is transmitted to the first mobile communication terminal 110 through the mobile communication network 120. Here, when it is determined that the location information provision is not set, the second mobile communication terminal 112 provides a location information provision menu asking for the consent of the location information provision, and when the user agrees to provide the location information through the location information provision menu. Transmits the location information request signal to the RF device 150, receives the shadow area location information from the RF device 150, and provides the shadow area location information providing message including the shadow area location information according to the received shadow area location information. It transmits to the first mobile communication terminal 110 through the mobile communication network (120). Here, the second mobile communication terminal 112 preferably mounts an RF module in the second mobile communication terminal 112 to receive the shadow area location information from the RF device 150.

Here, the first mobile communication terminal 110 and the second mobile communication terminal 112 are a personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, a hand-held PC, a GSM ( Global System for Mobile (Wi-CDMA) phone, W-CDMA (Wideband CDMA) phone, CDMA-2000 phone, MBS (Mobile Broadband System) phone, etc., the type of the mobile communication system constituting the mobile communication network 120 It can be determined according to. Here, MBS phone refers to a mobile phone to be used in the fourth generation system currently being discussed.

The mobile communication network 120 includes a wireless base station 122, a mobile switching center (MSC) 124, a home location register (HLR) 126, a position determination server (PDE), Hereinafter referred to as 'PDE' (128), Mobile Positioning Center (MPC: Mobile Positioning Center, referred to as 'MPC') (130), Data Core Network (DCN: 132), LBS (Location) Based Service (Server) 134, Tracking & Alerting System (TAS) (hereinafter referred to as 'TAS') (136), MoDAS (Mobile Density Administration System) (138) and SMSC 140, etc., Provides mobile communication services such as voice call service, data communication service, wireless internet service, short message service and location based service to the first mobile communication terminal 110 and the second mobile communication terminal 112.

Here, the radio base station 122 performs a location registration function, a function of allocating a radio channel, various functions required for radio call processing such as handoff, and the like. Mobile Switching Center (MSC) 124 is a basic and additional service processing for providing a voice communication service, incoming and outgoing call processing of the subscriber, location registration and handoff procedure processing, interworking with other networks, etc. Do this.

The home location register (HLR) 126 is a database that stores service profiles related to mobile subscriber information, and identifies terminals of the first mobile terminal 110 and the second mobile terminal 112. A subscriber station is stored by storing information on a mobile identification number (MIN), an electronic serial number (ESN), and a service type.

The PDE 128 receives a location tracking request for the second mobile communication terminal 112 from the MPC 130 and carries a second navigation system (GPS: Global Positioning System) function. A server for inquiring the location of the communication terminal 112, and interworking with the mobile communication switching center 124 for the GPS location inquiry of the second mobile communication terminal (112).

The MPC 130 is a server for requesting a GPS location inquiry to the PDE 128 and transmitting the result to the LBS server 134. The MPC 130 is linked with the home location register 126 to which the second mobile communication terminal 112 belongs. Information about the communication switching center 124 is checked and provided to the PDE 128.

The data core network 132 includes a high speed data service for providing a packet data communication service, an internet / intranet access service, a virtual private network (VPN) access service, a simple IP and a mobile IP service, Performs Point-to-Point Protocol (PPP) authentication, billing, and packet compression.

LBS server 134 is a service server that provides a number of additional services based on the location of the mobile communication terminal, in conjunction with the home location register 126, MPC 130, MoDAS 138, TAS (136) The location of the second mobile communication terminal 112 is searched based on the base station or the GPS, and various additional services are provided based on the searched location.

The TAS 136 is a server that determines the location inquiry time for the location-based service when the service is registered by the LBS server 134. The MoDAS 138 is a server that receives and manages location registration information for the second mobile communication terminal 112 from the home location register 126. The MoDAS 138 receives the location information of the second mobile communication terminal 112 through the home location register 126. In case of failing to check the current location, it interworks with the LBS server 134 to provide the final location registration information of the second mobile communication terminal 112.

The SMSC 140 exchanges numbers and letters in both directions between the first mobile communication terminal 110 and the second mobile communication terminal 112 and various text communication systems (PC communication system, Internet server system, mobile communication terminal, etc.). It is a system that provides SMS service to receive.

RF device 150 according to a preferred embodiment of the present invention is installed in a shaded area including the inside of the building, underground and subway, and stores the shaded area position information of the region where the RF device 150 is located, the second When the location information request signal is received from the mobile communication terminal 112, the shadow area location information is transmitted to the second mobile communication terminal 112.

2 is a flowchart illustrating a method of providing a location information service of a shadow area in a mobile communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the first mobile communication terminal 110 sends a location information request message to the second mobile communication terminal 112 through the mobile communication network 120 to determine the location of the second mobile communication terminal 112. Transmit (S210).

The second mobile communication terminal 112 transmits a location information request signal for confirming its own location information according to the location information request message received from the first mobile communication terminal 110 through the wireless base station 122 through the LBS server 134. In step (S220).

The second mobile communication terminal 112 determines whether location information is received from the LBS server 134 (S230). In this case, when the second mobile communication terminal 112 determines that the location information is received from the LBS server 134 in step S230, the second mobile communication terminal 112 transmits the location information providing message including the location information according to the received location information through the mobile communication network 120. It transmits to the first mobile communication terminal 110 (S232).

When the second mobile communication terminal 112 determines that the location information is not received from the LBS server 134 in step S230, the RF device 150 is installed in the shaded area including the inside of the building, the basement, the subway, and the like. It is determined whether a signal has been received (S240).

When it is determined that the second mobile communication terminal 112 receives the RF signal from the RF device 150, the second mobile communication terminal 112 determines whether provision of location information is set in the second mobile communication terminal 112 (S250).

If it is determined in step S250 that the location information provision is set, the second mobile communication terminal 112 transmits a location information request signal to the RF device 150 (S260).

The second mobile communication terminal 112 receives the shadow area location information from the RF device 150 (S270).

The second mobile communication terminal 112 transmits the shadow area location information providing message including the shadow area location information to the first mobile communication terminal 112 through the mobile communication network 120 according to the received shadow area location information. S280).

If it is determined in step S250 that the location information provision is not set, the second mobile communication terminal 112 provides a location information provision menu asking for consent of the location information provision (S252).

If the user agrees to provide the location information through the location information providing menu, the second mobile communication terminal 112 transmits the location information request signal to the RF device 150 (S254).

The second mobile communication terminal 112 receives the shadow area location information from the RF device 150 (S270).

The second mobile communication terminal 112 transmits the shadow area location information providing message including the shadow area location information to the first mobile communication terminal 110 through the mobile communication network 120 according to the received shadow area location information. S280).

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, by providing the location information of the mobile communication terminal located in the shadow area including the inside of the building, underground and subway, the user can accurately determine the location of the other party in the shadow area have.

Claims (11)

In the mobile communication system that provides the location information service of the shaded area for identifying the location of the mobile communication terminal located in the shaded area including the inside of the building, underground and subway, A first mobile communication terminal for transmitting a location information request message to determine a location of another mobile communication terminal; A mobile communication network including a Short Message Service Center (SMSC) and a Location Based Service (LBS) server and providing a short message service and a location based service; An RF device installed in the shadow area to store shadow area location information, and transmitting the shadow area location information when receiving a location information request signal; And It is determined whether the RF signal is received from the RF device. When it is determined that the RF signal is received from the RF device, it is determined whether the location information provision is set according to the received RF signal, and the location information is provided. If it is determined that the configuration is set to transmit the location information request signal to the RF device, receives the shaded area location information from the RF device, the shadow including the shaded area location information according to the received shaded area location information A second mobile communication terminal transmitting a local location information providing message to the first mobile communication terminal through the mobile communication network; Mobile communication system providing a location information service of the shaded area comprising a. The method of claim 1, And the location information request message includes a teleservice ID indicating a type of service requested by the first mobile communication terminal. The method of claim 1, The second mobile communication terminal provides a location information service of the shadow area, characterized in that for mounting the RF module to receive the location information of the shadow area from the RF device. The method of claim 1, The second mobile communication terminal receives the location information request message from the first mobile communication terminal, and receives the location information request signal for confirming the location of the second mobile communication terminal according to the received location information request message. A mobile communication system for providing a location information service of the shadow area, characterized in that for transmitting to the mobile communication network. The method of claim 4, wherein The second mobile communication terminal determines whether the location information is received from the mobile communication network, and if it is determined that the location information is received, the location information providing message including the location information according to the received location information is moved. A mobile communication system for providing a location information service of a shadow area, characterized in that for transmitting to the first mobile communication terminal through a communication network. The method of claim 4, wherein When the second mobile communication terminal determines that the location information has not been received from the mobile communication network, the second mobile communication terminal determines whether the RF signal is received from the RF device installed in the shadow area. Mobile communication system providing information service. The method of claim 1, And when the second mobile communication terminal determines that the location information provision is not set, providing a location information provision menu asking for consent of the location information provision. The method of claim 7, wherein If the user agrees to provide the location information through the location information providing menu, the second mobile communication terminal transmits the location information request signal to the RF device, receives the shadow area location information from the RF device, The shaded area location information providing message including the shaded area location information is transmitted to the first mobile communication terminal through the mobile communication network according to the received shaded area location information. Providing mobile communication system. It includes a first mobile terminal, a Short Message Service Center (SMSC) and a Location Based Service (LBS) server that transmits a location information request message to determine the location of another mobile terminal, and includes a short message service and a location based service. An RF device and the RF device installed in a shaded area including a mobile communication network, a building inside, a basement, and a subway to store shaded area location information, and transmitting the shaded area location information when receiving a location information request signal. Receiving the shadow area location information from the second frame, and transmitting a shadow area location information providing message including the shadow area location information to the first mobile communication terminal through the mobile communication network according to the received shadow area location information; In the mobile communication system including the mobile communication terminal, A method for ball, (a) receiving the location information request message from the first mobile communication terminal; (b) transmitting the location information request signal to the mobile communication network to identify the location of the second mobile communication terminal according to the location information request message; (c) determining whether location information is received from the mobile communication network; (d) if it is determined in step (c) that the location information has not been received, determining whether the RF signal has been received from the RF device installed in the shadow area; (e) if it is determined in step (d) that the RF signal has been received, determining whether location information provision is set in the second mobile communication terminal; (f) transmitting the location information request signal to the RF device when it is determined in step (e) that the location information provision is set; (g) receiving the shaded area location information from the RF device; And (h) transmitting a shadow area location information providing message including the shadow area location information to the first mobile communication terminal through the mobile communication network according to the shadow area location information; Method for providing a location information service of the shadow area in a mobile communication system comprising a. The method of claim 9, wherein between step (c) and step (d), (c1) when it is determined in step (c) that the location information is received from the mobile communication network, a location information providing message including the location information according to the received location information is received through the first mobile communication network; Sending to the terminal Method for providing a location information service of the shadow area in a mobile communication system comprising a further. The method of claim 9, wherein after step (h): (i) providing a location information providing menu asking for consent of providing the location information when it is determined in step (e) that the location information providing is not set; (j) transmitting the location information request signal to the RF device if the user agrees to provide the location information through the location information providing menu; (k) receiving the shadow area location information from the RF device; And (l) transmitting a shadow area location information providing message including the shadow area location information to the first mobile communication terminal through the mobile communication network according to the shadow area location information; Method for providing a location information service of the shadow area in a mobile communication system comprising a further.

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