KR20070107968A - Mehod, system and server for determining location of mobile communication terminal equipped with digital multimedia broadcasting function and mobile communication terminal for determining location - Google Patents

Abstract

A method, a system and a server for determining a location of a mobile communication terminal having a DMB(Digital Multimedia Broadcasting) function and the mobile communication terminal for determining a location are provided to calculate distance from a DMB repeater or the like to the mobile communication terminal according to a phase and strength of waves received from the DMB repeater or the like, and determine the location of the mobile communication terminal based on the calculated distance. A method for determining a location of a mobile communication terminal using DMB(Digital Multimedia Broadcasting) comprises the following steps of: receiving DMB wave information, as information about plural DMB waves received from plural DMB repeaters, from the mobile communication terminal; setting plural DMB reference points by using the DMB wave information and calculating plural DMB distances from the plural DMB reference points to the mobile communication terminal(S350); and determining a DMB location of the mobile communication terminal by using the plural distances(S360).

Description

METHOD, SYSTEM AND SERVER FOR DETERMINING Location of Mobile Communication Terminal Equipped with Digital Multimedia Broadcasting Function and Mobile Communication Terminal for Positioning Method, System, Server and Positioning of Mobile Communication Terminal with Digital Multimedia Broadcasting Function Determining Location}

1 is a block diagram schematically illustrating a positioning system of a mobile communication terminal having a DMB function according to a first embodiment of the present invention;

2 is a block diagram schematically illustrating a DMB location server according to a first embodiment of the present invention;

3 is a flowchart illustrating a method for determining a location of a mobile communication terminal having a DMB function according to a first embodiment of the present invention;

4 is a block diagram schematically illustrating a mobile communication terminal for position determination according to a second embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: mobile communication terminal 120: DMB base station

122: satellite DMB gap filler 124: terrestrial DMB base station

126: terrestrial DMB gap filler 128: DMB satellite

130: GPS satellite 140: mobile communication base station

150: mobile communication core network 160: region-based service server

170: positioning system 172: PDE

174: DMB location server 210: communication processing module

220: database module 230: distance calculation module

240: position calculation module 250: control module

410: mobile communication processing unit 420: DMB processing unit

430: GPS processing unit 440: distance processing unit

450: position processing unit 460: database unit

470: control unit

The present invention relates to a method, a system, a server, and a mobile communication terminal for determining a location of a mobile communication terminal having a digital multimedia broadcasting (DMB) function. More specifically, in order to more accurately and stably determine the position of the mobile communication terminal, the mobile communication terminal equipped with the DMB function from the DMB base station to the mobile communication terminal according to the phase and strength of the radio wave received from the DMB repeater or the like. The present invention relates to a method for determining the location of a mobile communication terminal based on the calculated distance, and to determine a location by using radio waves received from a system, a server and a DMB repeater.

As computer, electronic, and communication technologies have made rapid progress, various wireless communication services using wireless communication networks have been provided. The most basic wireless communication service is a mobile communication service that provides a voice call wirelessly to mobile terminal users, which can provide a service regardless of time and place, and provides a text message service. To complement.

Recently, in order to provide a data communication service that transcends space, a wireless Internet service for providing an Internet service to a mobile communication service subscriber through a wireless communication network has emerged, and technology development for the wireless Internet is actively underway. Mobile communication subscribers who have subscribed to the mobile communication service can receive various information such as news, weather, sports, securities, exchange rates, and traffic information in various forms such as text, voice, still image, and video through a wireless Internet service.

Among various wireless Internet services using a mobile communication terminal, in particular, a location based service (LBS) is widely used and spotlighted for its convenience. The location-based service refers to a communication service that locates a mobile communication terminal such as a mobile phone, a personal digital assistant (PDA), a notebook PC, and provides additional information related to the location. Such location-based services may be utilized in various fields and situations, such as rescue requests, crime reporting and response, provision of information on neighboring areas, traffic information, vehicle navigation, logistics control, and location-based customer relationship management (CRM).

Meanwhile, in order to provide such a location-based service, the location of the mobile communication terminal needs to be determined. The technique of identifying the location of the mobile communication terminal is called PDT (Position Determination Technology), which is a network-based method using a mobile communication signal such as CDMA received from a mobile communication base station and received from a GPS satellite. It is distinguished by GPS method using signal, and Hybrid method using both network based method and GPS method can be used.

In the network-based method, when the mobile communication terminal transmits information on the radio wave strength and phase of the radio wave received from the neighboring mobile communication base station (hereinafter referred to as 'base station radio wave') to the mobile communication network, the mobile communication network propagates the base station radio wave. As a method of determining the position of the mobile communication terminal by using the information on the strength and phase, there is a shortcoming of lack of precision because the location of the mobile communication terminal is determined using only the mobile communication base station, and in the radio shadow area The disadvantage is that the position cannot be measured.

In the GPS method, when a mobile communication terminal transmits information on radio wave strength, phase, Doppler effect, etc., received from a GPS satellite (hereinafter referred to as 'GPS radio wave') to a mobile communication network, the GPS transmitted by the mobile communication terminal from the mobile communication network As a method of determining the location of a mobile communication terminal using information on radio waves, the location is determined using satellite navigation data received from a GPS satellite, which can be measured more precisely than a base station based method. Even when the mobile communication terminal does not have a GPS reception function or in an indoor environment in which satellite navigation data cannot be received from a GPS satellite, there is a disadvantage in that the position cannot be measured.

On the other hand, with the development of mobile communication technology, the demand for using a broadcast service including a video service, a voice service, etc. in a mobile communication environment has increased rapidly, and digital multimedia broadcasting (DMB) is referred to as 'DMB'. Services have emerged, and their use is exploding.

The DMB service refers to a broadcasting service that digitally modulates various multimedia data such as video data and audio data and provides the same to a fixed terminal or a portable terminal. In other words, it means a service that can provide high-quality, high-definition broadcasting of CD (Compact Disc) or DVD (Digital Versatile Disc) level to a mobile communication terminal or a vehicle terminal such as a mobile phone, a PDA (Personal Digital Assistant) even while on the move. Unlike conventional analog broadcasting, the DMB service is combined with a mobile communication network to provide an interactive service such as remote purchase, telemedicine, or distance education. For example, you can order an advertising product that is broadcast while moving, and you can download the desired educational program.

DMB service is divided into 'terrestrial DMB' and 'satellite DMB' according to service type and network configuration. Satellite DMB service provides DMB service by using satellite, and when DMB broadcasting center converts broadcasting program into digital multimedia data and sends it to DMB satellite through CDM channel, it receives from DMB satellite and DMB receiver and DMB gap of nationwide DMB service is provided by relaying to Gap Filler. Here, the satellite DMB gap fillers each have a unique ID, and the DMB broadcasting information received from the DMB satellites is transmitted to indoor and underground environments where the DMB satellite signals do not reach, and the coverage hole of the satellite DMB service. To solve the problem.

In addition, the terrestrial DMB service provides a DMB service by relaying DMB signals transmitted from a DMB broadcasting center to DMB terminals at terrestrial DMB base stations and terrestrial DMB gap fillers installed throughout. Here, the terrestrial DMB gap filler also has a unique ID, and transmits the DMB broadcasting information received from the terrestrial DMB base station to an indoor or underground environment where the DMB satellite signal does not reach to solve the shadow area of the terrestrial DMB service.

That is, for the DMB service, regardless of whether the DMB service method is the satellite DMB service or the terrestrial DMB service, the satellite DMB gap filler, the terrestrial DMB base station, and the terrestrial DMB gap filler (hereinafter referred to as 'DMB repeaters', etc.) in all areas of the service area or nationwide. ) Is installed. In addition, since each of the gap filler and the base station has a unique ID, and its position (latitude and longitude value) is known accurately, in view of this, even if the mobile communication terminal does not have or has a GPS function, it is located in a GPS shadow area. In this case, even when located in the radio shadow area of the mobile communication base station, the signal from the DMB repeater can be used to more accurately determine the location of the mobile communication terminal. Therefore, the development of a technology for more precisely determining the position using a DMB repeater or the like is required.

In order to solve this problem, the present invention, in order to more accurately and stably determine the position of the mobile communication terminal, according to the phase and strength of the radio wave received from the DMB repeater in the mobile communication terminal with a DMB function, etc. It is an object of the present invention to provide a method, system, and server for calculating a distance from a mobile communication terminal to a mobile communication terminal and then determining a location of the mobile communication terminal based on the calculated distance.

In addition, the present invention is calculated by calculating the distance from one or more of the GPS satellite or the mobile communication base station to the mobile communication terminal according to the phase and strength of the radio wave received from one or more of the GPS satellite and the mobile communication base station in the mobile communication terminal The purpose of the present invention is to provide a method, system, and server for determining the final location of a mobile communication terminal in consideration of the location calculated using the above-described DMB repeater. .

In addition, the present invention has a DMB function, measures the phase and intensity of the radio wave received from the DMB repeater and the like, calculates the distance from the DMB repeater or the like to the mobile terminal according to the phase and intensity of the radio wave, and then calculates An object of the present invention is to provide a mobile communication terminal for determining a location based on distance.

In addition, the present invention further includes at least one of a GPS function and a mobile communication function to move from one or more of the GPS satellite and the mobile communication base station according to the phase and the strength of the radio wave received from at least one of the GPS satellite and the mobile communication base station. The present invention provides a mobile communication terminal that calculates a distance to a communication terminal and determines its position based on the calculated distance, and then determines the final position in consideration of the calculated position using the above-described DMB repeater. There is a purpose.

In order to achieve the above object, the present invention provides a method for determining a location of a mobile communication terminal, comprising: (a) a plurality of digital multimedia broadcasting (DMB) relays received from a plurality of relay units; Receiving DMB radio wave information, which is information on DMB radio waves, from the mobile communication terminal; (b) setting a plurality of DMB reference points using the DMB radio wave information and calculating a plurality of DMB distances from the plurality of DMB reference points to the mobile communication terminal; And (c) determining the location of the DMB of the mobile communication terminal using a plurality of distances.

In addition, according to another object of the present invention, by using a plurality of mobile communication base station and a mobile communication core network to determine the location of a mobile communication terminal receiving a plurality of DMB radio wave from a plurality of DMB relay receiving a mobile communication service In the system, upon receiving DMB radio wave information, which is information on a plurality of DMB radio waves, from a mobile communication terminal, the latitude and longitude of the plurality of DMB relay units are determined by using the DMB radio wave, and set as a plurality of DMB reference points. Determining a location of the mobile communication terminal using a plurality of DMB distances and then calculating a location of the mobile communication terminal using the plurality of DMB distances. Provide a system.

In addition, according to another object of the present invention, a plurality of mobile communication base station and a mobile communication core using a communication processing module for performing communication with the mobile communication terminal and a control module for controlling the overall operation, A server for determining a location of a mobile communication terminal receiving DMB radio waves from a plurality of DMB relays receiving mobile communication services and transmitting a plurality of DMB radio waves using a mobile communication base station and a mobile communication core network. Receiving DMB radio wave information, which is information on radio waves, grasps the latitude and longitude of multiple DMB relays, sets them as a plurality of DMB reference points, and calculates a plurality of DMB distances from a plurality of DMB reference points to a mobile communication terminal. ; And a location calculation module for determining a location of the DMB of the mobile communication terminal using a plurality of DMB distances.

According to still another object of the present invention, in a mobile communication terminal having a digital multimedia broadcasting (DMB) function, a plurality of DMB relays are received from a plurality of DMB relays. A DMB processing unit for generating and delivering DMB radio wave information which is information on a plurality of DMB radio waves; A database unit for storing the latitude and longitude of the plurality of DMB base station IDs and the plurality of DMB relay units corresponding to the plurality of DMB base station IDs; A distance processor configured to search for latitudes and longitudes of the plurality of DMB relays in the database unit, set the plurality of DMB reference points, and calculate a plurality of DMB distances from the plurality of DMB reference points to the mobile communication terminal; And a location processor configured to determine the location of the DMB of the mobile communication terminal using a plurality of DMB distances.

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 schematically illustrating a positioning system of a mobile communication terminal having a digital multimedia broadcasting (DMB) function according to a first embodiment of the present invention.

A positioning system of a mobile communication terminal having a DMB function according to the first embodiment of the present invention includes a mobile communication terminal 110, a DMB relay unit 120, and a GPS (Global Positioning System, hereinafter referred to as 'GPS') satellite. 130, a mobile communication base station 140, a mobile communication core network (CN) 150, a region-based service server 160, and a location determination system 170.

The mobile communication terminal 110 is a DMB terminal capable of performing a DMB service by including a mobile communication processing means such as a mobile communication modem and a DMB processing means such as a DMB receiver. The mobile communication core network 150 is provided through the mobile communication base station 140. Receives a mobile communication service provided by the), and receives the DMB service provided by the DMB broadcasting center (not shown) through the DMB relay unit 120.

Hereinafter, for convenience of description, a system for providing a mobile communication service including a mobile communication base station 140 and a mobile communication core network 150 will be referred to as a mobile communication system, and the DMB relay unit 120 and the DMB broadcasting center A system that provides a DMB service, including (not shown), is collectively referred to as a DMB system. The mobile communication system may be a synchronous mobile communication system such as a Code Division Multiple Access (CDMA) 2000 system, an asynchronous mobile communication system such as a wideband CDMA (WCDMA) system, or a portable Internet system such as a WiBro (Wireless Broadband Internet) system. The DMB system may be a satellite DMB system simultaneously using S-Band CDM signal using a frequency of about 2.6 GHz and a Ku-Band TDM signal using a frequency of 11 to 12 GHz, and using only Ku-Band TDM signal. It can be a terrestrial DMB system.

Accordingly, the mobile communication terminal 110 according to the first embodiment of the present invention includes mobile communication processing means and DMB communication processing means suitable for the corresponding system according to the type of the mobile communication system or the DMB system.

In addition, the mobile communication terminal 110 according to the first embodiment of the present invention receives a radio wave for the DMB signal (hereinafter referred to as 'DMB radio wave') from the DMB relay 120, the DMB base station ID included in the DMB radio wave DMB propagation information is generated by measuring the phase and intensity of DMB propagation. Here, the DMB base station ID may be a satellite DMB gap filler ID which is an ID of a satellite DMB gap filler when the DMB system is a satellite DMB system, and a network identification device (NIS: Network) when the DMB system is a terrestrial DMB system. Identification system).

In addition, the mobile communication terminal 110 according to the first embodiment of the present invention receives a radio wave for the mobile communication signal received from the mobile communication base station 140 (hereinafter referred to as "mobile communication radio wave") to the mobile communication radio wave The mobile communication base station ID, which is an ID of the included mobile communication base station 140, is identified, and the mobile communication wave information is generated by measuring the phase and the strength of the mobile communication wave.

Here, the mobile communication terminal 110 according to the first embodiment of the present invention preferably generates mobile communication radio wave information, but does not necessarily generate it. That is, when the mobile communication terminal 110 is located in the radio shadow area of the mobile communication base station 140, since the mobile communication base station 140 does not receive the mobile communication radio wave, only the above-described DMB radio wave information may be generated. . In addition, the mobile communication base station ID may be a combination of one or more of a base ID and a pilot PN when the mobile communication system is a CDMA 2000 system.

In addition, the mobile communication terminal 110 according to the first embodiment of the present invention receives a radio wave for the GPS signal (hereinafter referred to as 'GPS radio wave') from the GPS satellite 130 to receive the GPS satellite ID included in the GPS radio wave The GPS wave information is generated by measuring the phase and the strength of the GPS wave.

Here, the mobile communication terminal 110 according to the first embodiment of the present invention preferably generates GPS radio wave information, but does not necessarily generate it. That is, when the mobile communication terminal 110 is located in the radio wave shadow area of the GPS satellites or does not have a GPS receiver, GPS radio waves cannot be received, and thus only the above-described DMB radio wave information can be generated. In addition, the GPS ID may be SV_ID.

In addition, the mobile communication terminal 110 according to the first embodiment of the present invention is the DMB radio wave information, mobile radio wave information and GPS radio wave information (when not generating the dual mobile communication wave information and GPS radio wave information, DMB radio wave Information is generated and transmitted to the positioning system 170 via the mobile communication base station 140. In this case, the mobile communication terminal 110 may transmit the received radio wave information at the request of the location determination system 170, or may generate and periodically transmit itself without additional request.

In FIG. 1, only one DMB relay unit 120, a GPS satellite 130, and a mobile communication base station 140 are illustrated and described, but in practice, a plurality of DMB relay units 120 ( That is, a plurality of satellite DMB gap fillers 122, a plurality of terrestrial DMB base stations 124 and a plurality of terrestrial DMB gap fillers 126), a plurality of GPS satellites 130, and a plurality of mobile communication base stations 140 may be located. In this case, the mobile communication terminal 110 analyzes a plurality of radio waves received from each base station or gap filler to identify IDs of each base station or gap filler and measures phase and strength of each radio wave to generate respective radio information. Accordingly, the DMB propagation information includes a plurality of DMB base station IDs (ie, satellite DMB gap filler ID, terrestrial DMB base station ID, and terrestrial DMB gap filler ID) and corresponding phase and strength of the DMB radio waves, and the GPS propagation information includes a plurality of GPS It includes the phase and the strength of the GPS radio wave received from the satellite 130, the mobile radio wave information includes a plurality of mobile communication base station IDs and the corresponding phase and strength of the mobile communication radio waves.

The DMB relay 120 is a base station and a gap filler of a DMB system, and includes a satellite DMB gap filler 122, a terrestrial DMB base station 124, a terrestrial DMB gap filler 126, a DMB satellite 128, and the like. It is connected to (not shown) and receives digital multimedia data converted from a DMB broadcasting center (not shown) as a DMB radio wave and relays it to the mobile communication terminal 110. Here, the DMB relay 120 may be a satellite DMB gap filler 122 when the DMB system is a satellite DMB system, and when the terrestrial DMB system is a terrestrial DMB base station 124 and / or a terrestrial DMB gap filler 126. Can be

The GPS satellites 130 are 24 satellites that rotate around the earth at an angle of 55 ° with the earth's equator at an altitude of 55 ° over a period of 12 hours at an altitude of 20,200 km, and transmit satellite navigation data to GPS radio waves.

The mobile communication base station 140 is a base station of a mobile communication system, which is connected to the mobile communication core network 150 and is required for wireless call processing such as a location registration function of a mobile communication terminal 110, a function of allocating a wireless channel, and handoff. It performs various functions. The mobile communication base station 140 according to the first embodiment of the present invention relays data transmitted and received between the mobile communication terminal 110 and the positioning system 170 in association with the mobile communication core network 150.

The mobile communication core network 150 is a core network composed of a plurality of devices for providing basic mobile communication services such as voice call service and wireless data service to the mobile communication terminal 120 in a mobile communication system. : Mobile Switching Center (HLR), Home Location Register (HLR), Data Core Network (DCN). The mobile communication core network 150 according to the first embodiment of the present invention relays data transmitted and received between the mobile communication terminal 110 and the location determination system 170 in association with the mobile communication base station 140, and the location determination system. By connecting the 170 and the area-based service server 160 to provide a communication path for performing communication with each other, the area-based addition to the mobile communication terminal 110 at the request of the area-based service server 160 Provide service.

The area-based service server 160 is a service server that provides various additional services based on the location of the mobile communication terminal 110 and subscribes to a service for location-based additional services from a mobile subscriber using the mobile communication terminal 110. Receives the location of the mobile communication terminal 110 using the location determination system 170, and provides a variety of additional services based on the searched location.

Position determination system 170 is a system consisting of one network server or a plurality of network servers for determining the location of the mobile communication terminal 110, the location of the mobile communication terminal 110 in conjunction with the mobile communication core network 150 Determine and provide the location-based service server 160 receives the location of the mobile communication terminal 110 is requested.

The location determination system 170 according to the first embodiment of the present invention receives the received radio wave information from the mobile communication terminal 110 through the mobile communication base station 140 and the mobile communication core network 150 and uses the received radio wave information. To determine the location of the mobile communication terminal (110).

The position determination system 170 according to the first embodiment of the present invention uses a positioning server (PDE: Position) that uses the mobile communication base station 140 or the GPS satellite 130 to determine the position of the mobile communication terminal 110. Determination Entity, hereinafter referred to as 'PDE', 172 and the DMB location server 174 for determining the location of the mobile communication terminal 110 using the DMB relay 120, respectively, PDE (172) And the DMB location server 174 may be implemented as a single network server.

The following describes the positioning system 170 assuming that the positioning system 170 includes a PDE 172 and a DMB location server 174, respectively. However, it is to be noted that this assumption is only for convenience of explanation and that the functions of the PDE 172 and the DMB location server 174 may be combined to operate as one network server.

The first positioning system 170 of the present invention includes a PDE 172 and a DMB location server 174, the location of the mobile communication terminal 110 using the received radio wave information received from the mobile communication terminal 110 Determine. That is, the PDE 172 determines the location of the mobile communication terminal 110 using one or more of the mobile communication radio wave information and the GPS radio wave information, and the DMB location server 174 uses the DMB radio wave information. ) Is determined.

Here, the PDE 172 determines the location of the mobile communication terminal 110 using only when the received radio wave information includes at least one of mobile communication wave information and GPS radio wave information, and does not include both information. Next, the location of the mobile communication terminal 110 determined by the DMB location server 174 is determined as the final location.

That is, when the mobile communication terminal 110 does not have a GPS receiver or is equipped with a GPS receiver but is located in a radio wave shadow area of the GPS satellite 130, the GPS communication information cannot be generated. Radio wave information is not included. Accordingly, the PDE 172 does not use the GPS radio wave information to determine the location of the mobile communication terminal 110. Likewise, when the mobile communication terminal 110 is located in the radio shadow area of the mobile communication base station 140, the mobile communication radio wave information does not generate the mobile communication radio wave information, so the PDE 172 does not include the mobile communication radio wave information. The mobile communication radio wave information is not used to determine the location of the mobile communication terminal 110.

In addition, although the mobile communication terminal 110 can generate the GPS radio wave information and the mobile communication wave information, these two pieces of information are only options for more accurately determining the position of the mobile communication terminal 110, According to the present invention, the location of the mobile communication terminal 110 can be determined using only the DMB radio wave information.

Hereinafter, a method of determining the location of the mobile communication terminal 110 using the received radio wave information in the PDE 172 and the DMB location server 174 will be described.

The PDE 172 has a database storing information on mobile communication base station IDs, latitudes, and longitudes of all mobile communication base stations 140, and when receiving mobile communication radio wave information, each mobile communication base station included in mobile communication radio wave information. Check the phase and strength of radio waves for each ID, and search the database for the latitude and longitude (hereinafter referred to as 'mobile communication reference point') of a plurality of mobile communication base stations 140 corresponding to each mobile communication base station ID to search for a plurality of mobile communication. After calculating the distance from each mobile communication reference point to the mobile communication terminal 110 in consideration of the reference point and the phase and strength of each mobile radio wave, the distance from the plurality of mobile communication reference points to the mobile communication terminal 110 is used. Determine the location of the mobile communication terminal 110, that is, the mobile communication location, and generate mobile communication reliability information in consideration of the strength of the mobile communication radio wave. All.

Here, the PDE 172 may determine the position of the mobile communication terminal 110 using a calculation method applied to the triangulation method. That is, a calculation method using a triangulation method that draws a plurality of circles with a radius of the distance from each mobile communication reference point to the mobile communication terminal 110 and determines an overlapping portion as the location of the mobile communication terminal 110 can be used. have. In addition, the mobile communication reliability information refers to information indicating a reliability value for expressing the reliability of the position determined by using the mobile communication radio wave according to the strength of the strength of the mobile communication radio wave. Here, the calculation method using the triangulation method is a measurement method utilizing the concept of triangulation, may be a conventional triangulation method, or may be a conventional various position calculation method applying the triangulation method.

In addition, when receiving the GPS radio wave information, the PDE 172 determines the position of the mobile communication terminal 110, that is, the GPS position by using a conventional position surveying method, and generates GPS reliability information in consideration of the strength of the GPS radio wave. Here, the GPS reliability information refers to information indicating a reliability value for representing the reliability of the position determined by using the GPS radio wave according to the strength and weakness of the GPS radio wave.

In addition, when the PDE 172 according to the first embodiment of the present invention receives the DMB location information including the DMB location and the DMB reliability value for the location of the mobile communication terminal 110 described later from the DMB location server 174. The arithmetic mean of the above-described mobile communication location, GPS location and DMB location is calculated or multiplied by each of the mobile communication location value, GPS reliability value and DMB location value and summed to obtain an average, that is, the weighted average of each location to each location value. As a result, the final position of the mobile communication terminal 110 is determined.

The DMB location server 174 according to the first embodiment of the present invention includes a database storing information on the DMB base station IDs, latitudes, and longitudes of all the DMB base stations 120, and when the DMB radio wave information is received, the DMB radio wave information. Check the phase and strength of each DMB ID included in the DMB ID, and search the database for the latitude and longitude (hereinafter referred to as 'DMB reference point') of the DMB 120 base station corresponding to each DMB base station ID in the database. After calculating the distance from each DMB reference point to the mobile communication terminal 110 in consideration of the phase and strength of each mobile radio wave, and using the distance from the plurality of DMB reference points to the mobile communication terminal 110 After determining the position of 110, that is, the DMB position, generate the DMB position, generate the DMB reliability information in consideration of the strength of the DMB propagation, and then include the DMB position and the DMB reliability information. Information is transmitted to the PDE (172).

Here, the DMB location server 174 applies a triangulation method of determining the overlapping portion as the location of the mobile communication terminal 110 by drawing a plurality of circles with a radius of the distance from each DMB reference point to the mobile communication terminal 110. One calculation method can be used. In addition, the DMB reliability information refers to information indicating a reliability value for representing the reliability of the position determined by using the DMB radio wave according to the strength of the DMB radio wave strength.

2 is a block diagram schematically illustrating a DMB location server according to a first embodiment of the present invention.

The DMB location server 174 according to the first embodiment of the present invention includes a communication processing module 210, a database module 220, a distance calculation module 230, a location calculation module 240, and a control module 250. do.

The communication processing module 210 is a network communication means for providing a communication interface for the DMB location server 174 to perform data communication with the PDE 172 or the mobile communication core network 150.

The database module 220 stores all DMB base station IDs, and stores information on latitude and longitude of the corresponding DMB relay 120 (ie, each base station and / or gap filler of the DMB relay 120). Managed database.

When the distance calculation module 230 receives the DMB radio wave information from the mobile communication terminal 110, the distance calculation module 230 checks each DMB base station ID included in the DMB radio wave information and the phase and strength of the DMB radio wave for the DMB radio wave information, and the database module 220. Retrieves the information on the latitude and longitude of the corresponding DMB relay unit 120 by searching each DMB base station ID, and then uses the latitude and longitude of each DMB relay unit 120 based on the phase and intensity of each DMB radio wave. As a reference point, the distance from each reference point to the mobile communication terminal 110 is calculated and transmitted to the position calculation module 240.

The position calculation module 240 determines the position of the mobile communication terminal 110 by using a triangulation method when the distance from the distance calculation module 250 to the mobile communication terminal 110 is transmitted from each reference point. That is, the position calculation module 240 draws a plurality of circles centered on each reference point with the distance from each reference point to the mobile communication terminal 110 as a radius, and then the portion of each circle overlaps with the mobile communication terminal ( 110). In addition, the location calculation module 240 determines the location of the DMB, and then generates the DMB reliability information by determining the strength and weakness of the strength by averaging the strength of each radio wave.

The control module 250 is a control means for controlling the overall operation of the DMB location server 174. After receiving the DMB radio wave information to determine the DMB location, the control module 250 generates the DMB location and the DMB reliability information and transmits it to the PDE 170. The communication processing module 210, the distance calculation module 230, the database module 220, and the location calculation module 240 are respectively controlled.

3 is a flowchart illustrating a method of determining a location of a mobile communication terminal having a DMB function according to a first embodiment of the present invention.

When the location determination system 170 requests the received radio wave information from the mobile communication terminal 110 or the mobile communication terminal 110 needs to identify the period by itself and transmits the received radio wave information, the mobile communication terminal 110 may be located in the vicinity. All radio waves are received from the DMB relay unit 120, all mobile communication base stations 140, and all GPS satellites 130 to generate received radio wave information.

That is, when the mobile communication terminal 110 receives the DMB radio waves from the surrounding multiple DMB relays 120, the mobile communication terminal 110 analyzes the DMB radio waves to determine the plurality of DMB base station IDs, and the phase and the phase of the DMB radio waves for each DMB base station ID. The intensity is measured to generate DMB propagation information (S310).

In addition, when the mobile communication terminal 110 receives a GPS radio wave from a plurality of GPS satellites 130 having a GPS receiver, it analyzes the GPS radio wave to grasp a plurality of GPS satellite IDs, and GPS for each GPS satellite ID. GPS phase information is generated by measuring the phase and the intensity of the radio wave (S320).

In addition, when the mobile communication terminal 110 receives the mobile communication radio wave from the surrounding mobile communication base station 140, the mobile communication terminal analyzes the mobile communication radio wave to identify the plurality of mobile communication base station IDs, and the mobile communication radio wave for each mobile communication base station ID. The mobile communication propagation information is generated by measuring the phase and the intensity of the signal (S330).

Here, the mobile communication terminal 110 may generate only DMB radio wave information and may omit one or more of the GPS radio wave information and the mobile communication radio wave information. That is, GPS radio wave information or mobile communication radio wave information may be selectively generated as needed.

When the mobile communication terminal 110 generates the DMB radio wave information, the GPS radio wave information, and the mobile radio wave information as described in steps S310 to S330, the mobile communication terminal 110 generates the received radio wave information including the radio wave information to move the mobile communication base station 140 and the mobile station. It transmits to the location determination system 170 via the communication core network 150 (S340). In this case, the received radio wave information includes DMB radio wave information, but GPS radio wave information or mobile communication radio wave information may be selectively included as described above.

When the location determination system 170 receives the received radio wave information, it analyzes the received radio wave information, checks the DMB radio wave information included in the received radio wave information, and searches the database for the latitude and longitude of the DMB base station corresponding to each DMB base station ID. Set a plurality of reference points, calculate the distance from the plurality of reference points to the mobile communication terminal 110 by using the phase and strength of the DMB radio waves for each DMB base station ID, and then use a triangulation method applied to the triangulation method. The DMB location is determined, and the DMB reliability information including the reliability value of the DMB location is determined using the DMB propagation information (S350).

In addition, when the location determination system 170 analyzes the received radio wave information and determines that the GPS wave information or the mobile communication wave information is included in the received radio wave information, the position determination system 170 determines the GPS position and the mobile communication position, and the GPS wave information or the mobile communication. The GPS reliability information and the d mobile communication reliability information including the reliability value of determining the position of the mobile communication terminal 110 may be generated using the radio wave information. When the GPS radio wave information or the mobile communication radio wave information is included, the generation of the GPS position, the mobile communication position, the GPS reliability information, and the mobile communication reliability information has been described with reference to FIG.

The positioning system 170 that has generated the DMB location, the GPS location, and the mobile location (where one or more of the GPS location and the mobile location are optional), determines the location of each location, that is, the DMB location, the GPS location, and the mobile location. The final position of the mobile communication terminal is determined by calculating an arithmetic mean value or a weighted average value obtained by adding each reliability value to each position (S370).

In the above, the determination of the position of the mobile communication terminal 110 in the positioning system 170 through the interworking between the mobile communication terminal 110 and the positioning system 170 through the first embodiment has been described. Hereinafter, the mobile communication terminal 110 determines a location by itself through the second embodiment.

4 is a block diagram schematically illustrating a mobile communication terminal for position determination according to a second embodiment of the present invention.

The mobile communication terminal for positioning according to the second embodiment of the present invention includes a mobile communication processor 410, a DMB processor 420, a GPS processor 430, a distance processor 440, a location processor 450, and a database unit. 460 and the control unit 470.

The mobile communication processing unit 410 includes a CDMA modem, a WCDMA modem or a WiBro modem according to the type of the mobile communication system, and performs a mobile communication service by performing a mobile communication service by wirelessly communicating with the mobile communication base station 140. Means. The mobile communication processing unit 410 according to the second embodiment of the present invention measures the phase and the strength of the mobile communication radio waves received from all the mobile communication base stations under the control of the control unit 470, and the mobile communication radio wave through FIG. The information is generated and transmitted to the distance processor 440.

The DMB processing unit 420 includes a satellite DMB modem or a terrestrial DMB modem according to the type of the DMB system, and is a DMB processing unit for performing a DMB service using the DMB base station 140. The DMB processing unit 420 according to the second embodiment of the present invention measures the phase and intensity of the DMB radio waves received from all the surrounding DMB relay units 120 under the control of the control unit 470 and the DMB described with reference to FIG. 1. The radio wave information is generated and transmitted to the distance processor 440.

The GPS processing unit 430 is GPS processing means for receiving satellite navigation data from the GPS satellites 130. The GPS processor 430 according to the second embodiment of the present invention measures the phase and the intensity of the GPS radio waves received from all the GPS satellites 130 under the control of the controller 470, and the GPS radio wave described with reference to FIG. The information is generated and transmitted to the location processor 440.

When the distance processor 440 according to the second embodiment of the present invention receives the mobile communication radio wave information and the DMB radio wave information from the mobile communication processor 410 and the DMB processor 420, respectively, according to the control of the controller 470. For each radio wave information, the distance from the plurality of reference points to the mobile communication terminal 110 is calculated and transmitted to the location processor 450.

That is, when the DMB propagation information is used, the distance processor 440 grasps the phase and strength of the DMB radio waves for each DMB base station ID included in the DMB radio wave information, and determines the phase and intensity of the DMB relay 120 corresponding to each DMB base station ID. Latitude and longitude (ie, 'DMB reference point') of each base station or gap filler is searched and determined by the database unit 460, and the distance from each DMB reference point to the mobile communication terminal 110 is used by the phase and intensity of the DMB radio wave. Calculate and transfer to the location processing unit 450. As described above, the method for calculating the distance from each reference point to the mobile communication terminal 110 is similarly applied to the case of using the mobile communication radio wave information, and thus a detailed description thereof will be omitted.

When the position processor 450 according to the second embodiment of the present invention receives the distance from the reference point to the mobile communication terminal 110 for each radio wave information from the distance processor 440, a triangulation method is applied. The position of the mobile communication terminal 110, that is, the mobile communication position, is determined for each radio wave information, and the GPS position is determined using the GPS radio wave information.

In addition, the position processor 450 according to the second embodiment of the present invention includes a reliability value for determining the position of each mobile communication terminal 110 based on the strength of each radio wave included in each radio wave information. Information (ie, mobile communication reliability information, DMB reliability information, and GPS reliability information) is generated.

In addition, the position processing unit 450 according to the second embodiment of the present invention arithmetic average or each radio wave position of the above-described mobile communication terminal 110 for each radio wave information (ie, mobile communication location, DMB location, GPS location) The reliability value of each of the aforementioned reliability information (ie, mobile communication reliability information, DMB reliability information, and GPS reliability information) is added to the location (ie, mobile communication location, DMB location, and GPS location) of the mobile terminal 110 for each information. The final position of the mobile communication terminal 110 is determined by weighted average.

The final position of the mobile communication terminal 110 determined as described above is used for an additional function of the mobile communication terminal 110 under the control of the controller 470 or through a mobile communication processing unit 410 (eg, a mobile communication system). For example, the location-based service server 160 may be used to provide an additional service to the mobile communication terminal 110 in the mobile communication system.

The database unit 460 is data storage means for storing data and the like. The database unit 460 according to the second embodiment of the present invention is the mobile communication base station IDs of all mobile communication base stations 140, the latitude and longitude coordinates corresponding thereto, and the DMB base station IDs of all the DMB relays 120 and the same. Coordinates of corresponding latitude and longitude are stored, and the latitude and longitude corresponding to each base station ID requested from the distance processor 440 are retrieved and provided under the control of the controller 470. Hereinafter, for convenience of description, the coordinates of the mobile communication base station IDs of all the mobile communication base stations 140 and their corresponding latitude and longitude, and the DMB base station IDs of all the DMB relays 120 and their corresponding latitude and longitude The coordinates are called 'base station ID and leftover'.

In addition, the database unit 460 according to the second embodiment of the present invention further includes a database updating means for updating the base station ID and coordinates, so that the mobile communication base station 140, the mobile communication core network 150, and the like are provided. Access to a specific server on the network (e.g., location determination system 170, PDE 172 or DMB location server 174, etc.) using the provided mobile communication service, and download if there is an updated base station ID and coordinates. The stored base station ID and coordinates are updated to update the stored base station IDs and coordinates.

Here, the database updating means may access a specific server on the network using a wireless Internet service at a predetermined period using a wireless data service provided by the mobile communication core network 150, and trigger through a short message. You can also use) to connect to a specific server on your network.

In addition, a trigger through a short message is a request for a specific server on the network to transmit a callback short message including its URL to the mobile communication terminal 110 to the mobile communication core network 150 to receive a callback short message. One mobile communication terminal 110 may use a URL to connect to a specific server on a network, or request a short message from the specific server to the mobile communication network 150, and specify a TI (Teleservice Identifier) of the short message. By setting the value, the mobile communication terminal 110 receiving the short message may check the TI of the short message, thereby connecting to a specific server.

As described above, the mobile communication terminal 110 connected to a specific server on the network checks whether there is an updated base station ID and coordinates, and downloads the updated base station ID and coordinates if there is any. To this end, the mobile communication terminal 110 according to the second embodiment of the present invention preferably has a short message function for receiving a short message to confirm a callback URL or for checking a TI and transmitting the specific message to a specific server on the network. .

The controller 470 is a control means for controlling the overall operation of the mobile communication terminal 110. The control unit 470 according to the second embodiment of the present invention controls the mobile communication processing unit 410, the DMB processing unit 420 and the GPS processing unit 430 to allow the mobile communication radio wave information, the DMB radio wave information and the GPS radio wave information, respectively. To generate and transmit to the distance processor 440, and retrieves and provides coordinates of latitude and longitude corresponding to each mobile communication base station ID and DMB base station ID stored in the database unit 460 according to the request of the distance processor 440. In addition, the distance from each reference point for each radio wave information calculated by the distance processor 440 to the mobile communication terminal 110 is transmitted to the location processor 450, and the mobile communication terminal 110 determined by the location calculation module 450. Receive the final location of the device and transmit it to the mobile communication system, or use it for additional functions.

Through FIG. 4, the mobile communication terminal 110 includes all of the mobile communication processing unit 410, the DMB processing unit 420, and the GPS processing unit 420 to generate mobile communication radio wave information, DMB radio wave information, and GPS radio wave information. Although, it is described that the final position is determined by determining the position of the mobile communication terminal 110 for each radio wave information. However, the mobile communication terminal 110 includes only the DMB processing unit 420 and uses only the DMB radio wave information. The location of 110 can be determined.

That is, the mobile communication terminal 110 optionally includes one or more of the mobile communication processing unit 410 and the GPS processing unit 430 and uses one or more of the mobile communication radio wave information and the GPS radio wave information of the mobile communication terminal 110. After determining the position, determining the final position of the mobile communication terminal 110 by performing an arithmetic average or weighted average using the reliability value determined with the position of the mobile communication terminal 110 determined using only the above-described DMB radio wave information is optional. It is a matter of fact, but not essential. However, in order to more accurately determine the location of the mobile communication terminal 110, it is preferable to use at least one of mobile communication radio wave information and GPS radio wave information.

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, in the case of a mobile communication terminal having a DMB function, the position of the mobile communication terminal can be determined using a DMB repeater or the like.

In addition, in the case of a mobile communication terminal equipped with at least one of a mobile communication function and a GPS function as well as a DMB function, the location of the mobile communication terminal may be further utilized by using at least one of a mobile communication base station and a GPS satellite as well as a DMB repeater. It can be determined precisely.

Therefore, even if one or more of the mobile communication terminal is in the radio wave shadow area of the GPS and the mobile radio shadow area of the mobile communication, the position of the mobile communication terminal can be more precisely determined using a DMB repeater or the like.

In addition, it is possible to determine a more precise position of the mobile communication terminal by weighted averaging the position of the mobile communication terminal determined using each base station using the reliability value of the radio wave received from each base station.

Claims (26)

In the method of determining the position of the mobile communication terminal, (a) receiving DMB radio wave information, which is information on a plurality of DMB radio waves received from a plurality of digital multimedia broadcasting (DMB) relay units, from the mobile communication terminal; (b) setting a plurality of DMB reference points using the DMB radio wave information and calculating a plurality of DMB distances from the plurality of DMB reference points to the mobile communication terminal; And (c) determining the location of the DMB of the mobile communication terminal using the plurality of distances; Position determination method of a mobile communication terminal using a DMB, characterized in that it comprises a. The method of claim 1, wherein the method is Before step (a) above, (a-1) receiving and analyzing the DMB radio waves from the plurality of DMB relay units in the mobile communication terminal to determine DMB base station IDs of the plurality of DMB relay units; And (a-2) generating the DMB radio wave information by measuring the phase and the intensity of the DMB radio wave corresponding to the plurality of DMB base station IDs in the mobile communication terminal; Position determination method of a mobile communication terminal using a DMB, characterized in that it further comprises. The method of claim 1, wherein step (b) comprises: (b1) analyzing the DMB propagation information to determine a plurality of DMB base station IDs and phases and strengths of DMB radio waves corresponding to the plurality of DMB base station IDs; (b2) determining the latitude and longitude of the plurality of DMB relay units using the plurality of DMB base station IDs and setting the plurality of DMB reference points; (b3) calculating the plurality of DMB distances from the plurality of DMB reference points to the mobile communication terminal; Position determination method of a mobile communication terminal using a DMB, characterized in that it comprises a. The method of claim 3, wherein in step (b3), The plurality of DMB distance is calculated using the phase and strength of the DMB radio waves, characterized in that the location of the mobile communication terminal using the DMB. The method of claim 1, wherein in step (c), The location of the DMB is determined using a calculation method applying a triangulation method based on the plurality of DMB reference points and the DMB distance. The method of claim 1, wherein the method is After the step (a), (a1) receiving a plurality of mobile communication radio wave information, which is information on a plurality of mobile communication radio waves received from a plurality of mobile communication base station from the mobile communication terminal; After step (b), (b4) setting a plurality of mobile communication reference points using the mobile communication propagation information and calculating a plurality of mobile communication distances from the plurality of mobile communication reference points to the mobile communication terminal; After the step (c), (c1) determining a mobile communication location of the mobile communication terminal using the plurality of mobile communication distances; And (c2) determining a final location of the mobile communication terminal using the DMB location and the mobile communication location. Position determination method of a mobile communication terminal using a DMB, characterized in that it further comprises. The method of claim 1, wherein the method is After the step (a), (a2) determining a GPS position of the mobile communication terminal using a plurality of GPS radio waves received from a plurality of GPS satellites; And after step (c), (c3) determining a final location of the mobile communication terminal using the DMB location and the GPS location. Position determination method of a mobile communication terminal using a DMB, characterized in that it further comprises. A system for determining a location of a mobile communication terminal receiving a plurality of DMB radio waves from a plurality of DMB relays by receiving a mobile communication service using a plurality of mobile communication base stations and a mobile communication core network, When receiving the DMB radio wave information, which is information on the plurality of DMB radio waves, from the mobile communication terminal, the latitude and longitude of the plurality of DMB relay units are determined using the DMB radio wave, and the plurality of DMB reference points are set. A location determination system for calculating a plurality of DMB distances from a reference point to the mobile communication terminal and determining the location of the DMB of the mobile communication terminal using the plurality of DMB distances; Positioning system of a mobile communication terminal using a DMB, characterized in that it comprises a. 9. The system of claim 8, wherein the positioning system is And a database for storing the latitude and longitude of the DMB relay unit corresponding to the plurality of DMB base station IDs and the plurality of DMB base station IDs. 10. The system of claim 9, wherein the positioning system is After determining the plurality of DMB base station IDs included in the DMB radio wave, the latitude and longitude of the DMB relay unit corresponding to the plurality of DMB base station IDs are determined in the database. Decision system. 9. The system of claim 8, wherein the positioning system is And calculating the plurality of DMB distances by using phases and intensities of the plurality of DMB radio waves included in the DMB radio wave information. 9. The system of claim 8, wherein the positioning system is And determining the location of the DMB by using a triangulation method based on the plurality of DMB reference points and the plurality of DMB distances. 9. The system of claim 8, wherein the positioning system is When receiving the DMB radio wave information, which is information on the plurality of DMB radio waves, from the mobile communication terminal, the latitude and longitude of the plurality of DMB relay units are determined using the DMB radio wave, and the plurality of DMB reference points are set. A DMB location server that calculates a plurality of DMB distances from a DMB reference point to the mobile communication terminal and then determines the DMB location of the mobile communication terminal using the plurality of DMB distances; And One or more of mobile communication propagation information, which is information on a plurality of mobile communication radio waves received from the plurality of mobile communication base stations, and GPS propagation information, which is information on a plurality of GPS radio waves received from a plurality of global positioning system (GPS) satellites. When received from the mobile communication terminal, at least one of a mobile communication location and a GPS location is determined using at least one of the mobile communication radio wave information and the GPS radio wave information, and at least one of the mobile communication location and the GPS location and the Positioning server (PDE: Position Determination Entity, hereinafter referred to as 'PDE') for determining the final position of the mobile communication terminal using the DMB position Positioning system of a mobile communication terminal using a DMB, characterized in that it comprises a. The system of claim 13, wherein the positioning system is And determining the final location by arithmetically averaging at least one of the mobile communication location and the GPS location and the DMB location. The system of claim 13, wherein the positioning system is At least one of the mobile communication location and the GPS location and the DMB location are weighted and averaged by adding at least one of the mobile communication reliability value and the GPS reliability value and the DMB reliability value to determine the final location. Positioning system of a mobile communication terminal using. The method of claim 15, The mobile communication reliability value is a value according to the strength of the strength of the plurality of mobile communication radio waves, the GPS reliability value is a value according to the strength of the strength of the plurality of GPS radio waves, and the DMB reliability value is the plurality of DMB radio waves. Positioning system of a mobile communication terminal using a DMB, characterized in that the value according to the strength of the strength. A communication processing module for communicating with the mobile communication terminal using a plurality of mobile communication base station and a mobile communication core network and a control module for controlling the overall operation, the plurality of mobile communication base station and the mobile communication core network A server for determining a location of a mobile communication terminal receiving the DMB radio waves from a plurality of DMB relays receiving a mobile communication service and transmitting a plurality of DMB radio waves. Upon receiving the DMB radio wave information, which is information on the plurality of DMB radio waves, the latitude and longitude of the plurality of DMB relay units are determined and set as a plurality of DMB reference points, and a plurality of DMB reference points from the plurality of DMB reference points to the mobile communication terminal. A distance calculation module for calculating a DMB distance; And Location calculation module for determining the location of the DMB of the mobile communication terminal using the plurality of DMB distance Positioning server of a mobile communication terminal using a DMB, characterized in that it comprises a. 18. The system of claim 17, wherein the location server is And a database module for storing the latitude and longitude of the plurality of DMB base station IDs and the plurality of DMB relay units corresponding to the plurality of DMB base station IDs, wherein the distance calculation module includes the plurality of DMBs included in the DMB propagation. Determining a base station ID, the database module to determine the latitude and longitude of the plurality of DMB relays corresponding to the plurality of DMB base station IDs location server of a mobile communication terminal using a DMB. In a mobile communication terminal having a digital multimedia broadcasting (DMB) function, A DMB processing unit for receiving a plurality of DMB radio waves from a plurality of DMB relay units and generating and transmitting DMB radio wave information which is information on the plurality of DMB radio waves; A database unit for storing latitude and longitude of a plurality of DMB base station IDs and a plurality of DMB relay units corresponding to the plurality of DMB base station IDs; A distance processor configured to retrieve the latitude and longitude of the plurality of DMB relay units from the database unit and set a plurality of DMB reference points, and calculate a plurality of DMB distances from the plurality of DMB reference points to the mobile communication terminal; And Location processor for determining the location of the DMB of the mobile communication terminal using the plurality of DMB distance Mobile communication terminal for position determination comprising a. The method of claim 19, wherein the mobile communication terminal, Receiving a plurality of mobile communication radio waves from a plurality of mobile communication base station and further comprises a mobile communication processing unit for generating and transmitting mobile communication wave information that is information on the plurality of mobile communication radio waves, The database unit further stores latitude and longitude of the plurality of mobile communication base station IDs and the plurality of mobile communication base station IDs corresponding to the plurality of mobile communication base station IDs, and the distance processor is configured to store the plurality of mobile communication base station IDs from the database unit. Set a plurality of mobile communication reference points by searching for latitude and longitude, and further calculate a plurality of mobile communication distances from the plurality of mobile communication reference points to the mobile communication terminal, and the location processor uses the plurality of mobile communication distances. And further determine a mobile communication location of the mobile communication terminal, and determine a final location of the mobile communication terminal using the DMB location and the mobile communication location. The method of claim 19, wherein the mobile communication terminal, Receiving a plurality of GPS radio waves from a plurality of GPS satellites, and further comprising a GPS processing unit for generating and transmitting the GPS radio wave information that is information on the plurality of GPS radio waves, wherein the location processing unit using the GPS radio wave information to move And further determine a GPS location of the communication terminal and determine a final location of the mobile communication terminal using the DMB location and the GPS location. The method of claim 19, wherein the position processing unit, Determine a final position of the mobile communication terminal by arithmetically averaging one or more of the mobile communication location determined using the plurality of mobile communication base stations and the GPS location determined using the plurality of GPS satellites and the DMB location. Mobile terminal for decision. The method of claim 19, wherein the position processing unit, One or more of a mobile communication location determined using the plurality of mobile communication base stations and a GPS location determined using a plurality of GPS satellites, and a mobile communication reliability value for determining the mobile communication location and the GPS location for the DMB location, respectively And determining a final position of the mobile communication terminal by weighted averaging by adding at least one of the reliability values and the DMB reliability value having determined the location of the DMB. The method of claim 20, wherein the database unit, A plurality of DMB base station IDs and a latitude and longitude of the plurality of DMB relays corresponding to the plurality of DMB base station IDs and the plurality of DMB base station IDs, the plurality of mobile communication base station IDs, and the plurality of mobile communication processing units are connected to specific servers on a network. And database updating means for updating base station IDs and coordinates including latitude and longitude of the plurality of mobile communication base stations corresponding to the two mobile communication base station IDs. The method of claim 24, wherein the database updating means, And a base station ID and coordinates are updated by accessing the specific server every predetermined period. The method of claim 24, wherein the database updating means, Receiving a short message from the specific server, accessing the specific server using at least one of a callback URL and a teleservice identifier (TI) included in the short message, and updating the base station ID and coordinates Mobile terminal for decision.

Images