KR101774230B1 - Method for measuring location of mobile device and system - Google Patents

Abstract

A system for measuring a location of a mobile terminal receiving a communication service comprises: a storage unit for storing and managing information of a plurality of radio units (RU) and information of digital units (DU) corresponding to the information of the radio units; a receiver for receiving a location information request message of a mobile terminal including the information of the digital unit from a mobile management entity (MME); an extraction unit for extracting the information of the radio units corresponding to the information of the digital unit based on the information of the digital unit included in the location information request message; a location measurement unit for measuring a location of the mobile terminal based on an azimuth information included in the extracted information of the radio units; and a transmission unit for transmitting the measured location of the mobile terminal as a response to the location information request message to the mobile management entity.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a system and a method for positioning a mobile terminal,

The present invention relates to a system and method for positioning a mobile terminal.

Recently, the number of users using LTE (Long Term Evolution) communication service has been increased more than users using 3G communication service. LTE network research was conducted to provide stable communication services in response to the amplification of wireless data in LTE communication services.

The expansion of base stations to support stable LTE communication services is ineffective in terms of cost and operation. Therefore, LTE network is constructed by applying CCC (Cloud Communication Center) virtualization technology based on existing base stations.

Here, the CCC virtualization technique divides a conventional base station into a digital unit and a radio unit, concentrates the digital unit into a separate center (operates a plurality of radio units in one digital unit) , A technology for dynamically allocating system resources of a digital unit and securing the flexibility of wireless network extension.

Because of this CCC virtualization technology, it is possible to expand base stations and repeaters with only antenna equipment in a narrow space, and it is possible to maximize the wireless network capacity per unit area. In addition, interworking of wireless networks between regional bases is facilitated, and wireless communication bandwidth between main exchanges and base stations can be expanded.

Since the conventional positioning method (e.g., Round Trip method) is developed based on the existing Code Division Multiple Access (CDMA) / Wideband Code Division Multiple Access (WCDMA) network, , And the error range of the positioning result was inevitably larger than that of the existing 3G network.

For example, in the previous CDMA / WCDMA network, there is only one wireless unit for providing communication service to one wireless terminal, so there is only one piece of position / latitude information to be positioned. However, in the LTE network, a plurality of wireless units provide communication services to one wireless terminal, and a radius of a specific direction in which one wireless unit provides a communication service is usually 4 km. Therefore, A maximum error range of about 24 km may occur.

In addition, when a specific positioning server suitable for an LTE network can not be developed, a CSFB (Circuit Switch Fallback) occurs, which causes an unnecessary call flow.

Korean Patent Publication No. 1999-0074437 discloses a method of collecting base station identification information and round trip delay (RTD) information from a message transmitted and received between a mobile station and a base station, inquiring a base station database, converting the base station identification information into a base station coordinate and a sector azimuth angle And converts the round trip delay (RTD) information into a distance between the mobile station and the base station, and determines the position of the mobile station based on the base station coordinates, the sector azimuth, and the distance information between the mobile station and the base station .

The information of the digital unit included in the location information request message of the mobile terminal received from the MME (Mobile Management Entity) and the information of the plurality of wireless units extracted corresponding to the information of the digital unit, . In addition, a position of the mobile terminal is determined based on the azimuth information included in the information of the plurality of wireless units, and the position of the positioned mobile terminal is transmitted to the mobile management entity. It is to be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

According to a first aspect of the present invention, there is provided a system for positioning a mobile terminal provided with a communication service, the mobile terminal including: a plurality of radio unit (RU) A storage unit for storing and managing information of a digital unit (DU) corresponding to each piece of information of the mobile terminal, a location information request message of a mobile terminal including information of a digital unit from a mobile management entity (MME) An extracting unit for extracting information of a plurality of radio units corresponding to information of the digital unit based on the information of the digital unit included in the position information request message; A position determination unit for determining a position of the mobile terminal based on the included azimuth information, In response to a location information request message may include transmission unit for transmitting to the mobile management object.

 According to a second aspect of the present invention, there is provided a method of positioning a mobile terminal provided with a communication service, the method comprising: receiving a location information request message of a mobile terminal including information of a digital unit from a mobile management entity; Extracting information of a plurality of radio units corresponding to the information of the digital unit from the database based on the information of the digital unit included in the request message, And transmitting the location of the positioned mobile terminal to the mobility management entity as a response to the location information request message.

A system for providing a location of a mobile terminal provided with communication service according to the third aspect of the present invention includes a base station database and a location positioning system for storing and managing information of a radio unit and information of a digital unit, The positioning system includes an area database for synchronizing the information of the radio unit stored in the base station database and the information of the digital unit, the position of the mobile terminal based on the azimuth information of each of the plurality of radio units providing communication service to the mobile terminal And a transmission unit for transmitting the location of the positioned mobile terminal to the mobility management entity.

The above-described task solution is merely exemplary and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and the detailed description of the invention.

According to any one of the above-described means for solving the problems of the present invention, even if the mobile terminal to which the position is to be positioned does not have a GPS module or a radio wave intensity measurement module, The position can be positioned. In addition, since it is not necessary to interwork the 3G network in order to locate the mobile terminal in the LTE (Long Term Evolution) network, it is possible to position the mobile terminal without the CSFB (Circuit Switch Fallback). In addition, since the position of the mobile terminal is positioned based on the azimuth information of the wireless unit without the CSFB, it is possible to prevent the call flow due to the call origination / location information request call processing.

1 is a configuration diagram of a location providing system of a mobile terminal according to an embodiment of the present invention.
2 is a block diagram of the position location system shown in FIG. 1, in accordance with one embodiment of the present invention.
Figure 3 is a block diagram of the position location system shown in Figure 1, in accordance with another embodiment of the present invention.
4A and 4B are tables showing information of a digital unit and a wireless unit according to an embodiment of the present invention.
5 is an exemplary view for explaining azimuth information of a wireless unit according to an embodiment of the present invention.
6 is an exemplary diagram for explaining a communication service area according to a position of a plurality of wireless units, according to an embodiment of the present invention.
7 is an exemplary view for explaining a communication service area according to a position of a plurality of wireless units, according to another embodiment of the present invention.
FIG. 8 is a diagram for explaining a positioning method using azimuth information of a plurality of wireless units according to an embodiment of the present invention. Referring to FIG.
FIG. 9 is a view for explaining a positioning method using azimuth information of a plurality of wireless units according to another embodiment of the present invention.
10 is an operational flow diagram illustrating a method of providing a location of a mobile terminal, in accordance with an embodiment of the present invention.
11 is a flowchart illustrating a method of positioning a mobile terminal according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

In this specification, the term " part " includes a unit realized by hardware, a unit realized by software, and a unit realized by using both. Further, one unit may be implemented using two or more hardware, or two or more units may be implemented by one hardware.

In this specification, some of the operations or functions described as being performed by the terminal or the device may be performed in the server connected to the terminal or the device instead. Similarly, some of the operations or functions described as being performed by the server may also be performed on a terminal or device connected to the server.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a configuration diagram of a location providing system of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 1, a location providing system may include a base station 110, a location positioning system 120, and a base station database 140. However, since the position providing system of FIG. 1 is only one embodiment of the present invention, the present invention is not limited to FIG. 1, and may be configured differently from FIG. 1 according to various embodiments of the present invention. For example, the location providing system may further include the mobile terminal 100 and the MME Mobile Management Entity 130.

In general, the components of the location providing system of FIG. 1 are connected through a network 150. The network refers to a connection structure in which information can be exchanged between each node such as terminals and servers. Examples of such a network include a 3rd Generation Partnership Project (3GPP), a Long Term Evolution (LTE), a WIMAX World Interoperability for Microwave Access, Wi-Fi, 3G, 4G, and 5G.

The communication service described below may be a communication service using an LTE (Long Term Evolution) network, but is not limited thereto.

The base station 110 may be a base station configured by separating a digital unit (DU) for processing digital signals and a radio unit (RU) for processing and transmitting radio waves. The base station 110 may be in the form of a cloud communication center (CCC) for solving the traffic increase due to the wide spread of the mobile terminal 100.

For example, the base station 110 may be a structure of a cloud base station in which a plurality of radio units share one digital unit to perform communication.

Here, the digital unit can be located within the national history, and the wireless unit can be installed outdoors, so that the communication facility can be lightened. Further, the lightened wireless unit can be easily expanded and installed, and can effectively cope with the explosion of wireless data.

In addition, the wireless unit may provide the mobile terminal 100 with a communication service. For example, the wireless unit may be configured as a sector antenna. In this case, the wireless unit can provide communication services within a sectoral range of a predetermined angle through the sector antenna.

The base station database 140 may store and manage information of the wireless unit and information of the digital unit. Here, the information of the wireless unit includes position information of the wireless unit, the type of the antenna, and the azimuth information of the antenna, and the information of the digital unit includes identification information, type information, status information, And may include information of the wireless unit.

The base station database 140 can manage information of the digital unit and information of the wireless unit by dividing a plurality of wireless units connected to each of the plurality of digital units.

The location positioning system 120 can keep the information of the wireless unit and the information of the digital unit up to date by synchronizing the information of the wireless unit and the information of the digital unit stored in the base station database 140. [ For example, the position location system 120 may synchronize the information of the wireless unit and the information of the digital unit stored in the base station database 140 with a predetermined period, or when receiving the location information request message of the mobile terminal 100 The information of the radio unit and the information of the digital unit stored in the base station database 140 may be received and synchronized.

The location location system 120 may receive the location information request message of the mobile terminal 100 from the mobility management entity 130.

The location positioning system 120 may extract information of a plurality of wireless units corresponding to information of the digital unit based on the information of the digital unit included in the location information request message.

The location positioning system 120 can determine the location of the mobile terminal based on the azimuth information of each of a plurality of wireless units providing communication services to the mobile terminal 100. [

The location positioning system 120 may transmit the location of the positioned mobile terminal to the mobility management entity 130.

The MMS entity 130 transmits the location information request message of the mobile terminal 100 to the location positioning system 120 and receives the location of the mobile terminal as a response to the location information request message from the location location system 120 .

The mobile terminal 100 may include a mobile terminal capable of wireless communication, and according to various embodiments of the present invention, the mobile terminal 100 may be various types of devices. For example, the mobile terminal 100 may be a portable terminal that can access a remote server through a network. Here, as an example of a portable terminal, a portable communication device that is guaranteed to be portable and mobility may be a personal communication system (PCS), a global system for mobile communications (GSM), a personal digital cellular (PDC), a personal handyphone system (PHS) (Personal Digital Assistant), IMT (International Mobile Telecommunication) -2000, CDMA (Code Division Multiple Access) -2000, W-CDMA (W-CDMA), Wibro (Wireless Broadband Internet) , Tablet PCs, and the like, all of which may include handheld based wireless communication devices. However, the mobile terminal 100 is not limited to the one shown in FIG. 1 or the ones illustrated above.

Hereinafter, the operation of each component of the position providing system of Fig. 1 will be described in more detail.

2 is a block diagram of the position location system 120 shown in FIG. 1, in accordance with an embodiment of the invention.

2, the position location system 120 may include a storage unit 200, a reception unit 210, an extraction unit 220, a position determination unit 230, and a transmission unit 240. However, the position locating system 110 shown in FIG. 2 is only one embodiment of the present invention, and various modifications are possible based on the components shown in FIG.

The storage unit 200 may store and manage information of a plurality of wireless units and information of digital units corresponding to information of wireless units. The digital unit is a digital signal processing unit of the base station 110 and is composed of a channel card for encrypting and decrypting wireless digital signals such as 3G, WiBro and LTE. The digital unit is interlocked with a plurality of wireless units through an optical cable, It can be operated as a concentration center. The wireless unit is a wireless signal processing unit of the base station 110. The wireless unit may include a converter and an RF amplifier that converts a digital signal received from the digital unit into an RF signal according to a frequency band and transmits and receives the RF signal through an antenna.

4A and 4B, the information of the radio unit and the information of the digital unit will be described.

4A and 4B are tables showing information of a digital unit and a wireless unit according to an embodiment of the present invention.

4A and 4B, the storage unit 200 can periodically synchronize and manage information of a base station (a digital unit and a wireless unit) providing communication services through the LTE network from the base station database 140. [

At this time, the information 400 of the radio unit received from the base station database 140 includes, for example, identification information of the digital unit mapped to the radio unit, status information and position information, position information of the radio unit, Type and azimuthal information of the antenna. The information of the digital unit received from the base station database 140 may include, for example, identification information, type information, status information, and location information of the digital unit.

The storage unit 200 may database the information of the digital unit and the wireless unit received from the base station database 140.

2, the receiving unit 210 may receive the location information request message of the mobile terminal 100 from the mobility management entity 130. [ Here, the location information request message may include a location location method of the mobile terminal 100. For example, as shown in Table 1, the round trip method, which is a conventional positioning method, or the positioning method using an azimuth according to an embodiment of the present invention, May be determined by the management entity 130.

[Table 1]

The receiving unit 210 may receive the location information request message of the mobile terminal 100 including the information of the digital unit from the mobile management entity 130 in which the mobile terminal 100 is registered.

The extracting unit 220 may extract, from the storage unit 200, information of a plurality of radio units corresponding to information of the digital unit based on information of the digital unit included in the location information request message. Here, the connection relationship between the digital unit and the plurality of wireless units can be variously set according to the network purpose.

For example, the extracting unit 220 may retrieve information of a plurality of wireless units that are organically connected to the first digital unit using the information of the first digital unit in which the mobile terminal 100 is registered.

The position determination unit 230 can determine the position of the mobile terminal 100 based on the azimuth information included in the extracted information of the plurality of wireless units.

In addition, the position locator 230 can determine the position of the mobile terminal 100 based on the azimuth information according to the type of the antennas of the plurality of wireless units. For example, when the antenna of the wireless unit is a sector antenna, the position determination unit 230 uses the azimuth angle information of the sector antenna, which is an intermediate angle of a predetermined angle (an angle with respect to the communication service range determined when the wireless unit is installed) So that the position of the mobile terminal 100 can be determined.

5, the azimuth information of the wireless unit will be described, and the communication service area according to the position of the wireless unit will be described with reference to FIGS. 6 and 7. FIG.

5 is an exemplary view for explaining azimuth information of a wireless unit according to an embodiment of the present invention.

Referring to FIG. 5, when the antenna type of the wireless unit is the sector antenna 500, the wireless unit can provide communication service within a sectoral range of a predetermined angle through the sector antenna 500. [

Specifically, in the case of the sector antenna 500, the radiating propagation zone 510 may be radiated in the form of a donut about an axis, and the communication service area 520 of the radio unit may have a fan shape of a predetermined angle.

The azimuth information 530 of the wireless unit may be a median of the angles calculated based on the maximum left angle 540 and the maximum right angle 550 of the radio signal from which the sector antenna 500 is radiated. For example, the azimuth angle information 530 of the wireless unit may be a point at which (maximum right angle 550 - maximum left angle 540) / 2.

6 is an exemplary diagram for explaining a communication service area according to a position of a plurality of wireless units, according to an embodiment of the present invention.

6, a plurality of wireless units, in which a mobile terminal 100 is provided with communication services in a first communication service area 640 and a communication service is provided in a first communication service area 640, Unit 60 and a second radio unit 61. In this case,

The first wireless unit 60 may provide communication services in a sector 600 in some of the first communication service area 640 and may include azimuth information 610 in the information of the first wireless unit 60 .

The second wireless unit 61 provides communication services in sectoral form in some areas 620 of the first communication service area 640 and the azimuth information 630 in the information of the second wireless unit 61 .

According to the conventional positioning method (for example, Round Trip), the error range increases as the number of overlaps between communication service areas of a plurality of radio units increases. On the other hand, according to the positioning method using the azimuth angle according to the embodiment of the present invention, as the number of overlaps between communication service areas of a plurality of wireless units increases, the accuracy of positioning of the mobile terminal 100 can be increased.

7 is an exemplary view for explaining a communication service area according to a position of a plurality of wireless units, according to another embodiment of the present invention.

7, although the mobile terminal 100 moves within the communication service area 700 where the first radio unit 70 is installed, the communication service area 700 of the first radio unit 70 is always fixed have. If the mobile terminal 100 moves to the communication service area 710 in which the third wireless unit 71 is not overlapped with the communication service area 700 of the first wireless unit 70, The first wireless unit 100 may be provided with the communication service provided by the third wireless unit 71 rather than the communication service provided by the first wireless unit 70. [

Referring again to FIG. 2, the location locator 230 may determine the location of the mobile terminal 100 by calculating the intersection of azimuth angles for each of the plurality of extracted wireless units.

8 and 9, a positioning method using azimuth information of a plurality of wireless units will be described.

FIG. 8 is a diagram for explaining a positioning method using azimuth information of a plurality of wireless units according to an embodiment of the present invention. Referring to FIG.

8, in a first communication service area, a mobile terminal 100 is provided with a communication service, and a plurality of wireless units providing communication services to a first communication service area are connected to a first wireless unit 80 2 wireless unit 81, as shown in FIG.

제 1 식)와 제 2 무선 유닛(81)의 방위각 정보(810)에 대한 위치 정보(

, 제 2 식) 간에 교차되는 지점을 계산할 수 있다. 예를 들면, 위치 측위부(230)는 제 1 식과 제 2 식에서 x와 x' 그리고 y 와 y'이 같은 지점을 계산함으로써, 교차되는 지점을 계산할 수 있다.The position locator 230 may calculate the intersection point 820 based on the azimuth information 800 of the first radio unit 80 and the azimuth information 810 of the second radio unit 81. [ For example, the position determination unit 230 may determine positional information (e.g., position information) of the azimuth information 800 of the first wireless unit 80

(First equation) and the azimuth information 810 of the second wireless unit 81

, The second equation) can be calculated. For example, the position locating unit 230 can calculate the intersecting point by calculating points where x and x 'and y and y' are the same in the first and second equations.

In addition, the position locating unit 230 can predict the position of the mobile terminal 100 within a predetermined range from the calculated intersection point 820. [

FIG. 9 is a view for explaining a positioning method using azimuth information of a plurality of wireless units according to another embodiment of the present invention.

9, it is assumed that the mobile terminal 100 is being provided with communication services in the first communication service area and the first wireless unit 90, the second wireless unit 91 and the third wireless Assume that unit 92 provides communication services.

The positioning result of the mobile terminal 100 by the positional information of the plurality of radio units 90 to 92 is calculated by the positional information 930 close to the second radio unit 91 Or an arithmetic mean of the position coordinates of the plurality of radio units 90 to 92 or the position information of the first radio unit 90, the second radio unit 91 and the third radio unit 92 may be obtained.

On the other hand, in the case of using the azimuth information 900 to 920 of the plurality of radio units 90 to 92 proposed by the present invention, the location positioning system 120 is configured such that the communication service request is concentrated on the main communication service area 950 Since the location of the mobile terminal 100 is located, it is possible to provide a location location service with a small error range. The position location system 120 can also calculate the intersection point of each of the plurality of radio units 90 to 92 with respect to each azimuth information 900 to 920 and position the location 940 of the mobile terminal 100.

Referring again to FIG. 2, the transmitter 240 may transmit the location of the positioned mobile terminal 100 to the mobility management entity 130 as a response to the location information request message.

Specifically, the transmitting unit 240 may transmit the intersection calculated using the azimuth angles of the plurality of wireless units to the mobility management entity 130 as the location of the mobile terminal 100.

Those skilled in the art will recognize that the storage unit 200, the receiving unit 210, the extracting unit 220, the position determining unit 230, and the transmitting unit 240 may be separately implemented, or at least one of them may be integrated It will be appreciated.

3 is a block diagram of the position location system 120 shown in FIG. 1, according to another embodiment of the present invention.

Referring to FIG. 3, the location positioning system 120 may include a local database 300, a location locator 310, and a transmitter 320. However, the position locating system 110 shown in FIG. 3 is only one embodiment of the present invention, and various modifications are possible based on the components shown in FIG.

The local database 300 can synchronize the information of the radio unit stored in the base station database 140 and the information of the digital unit. Here, the information of the wireless unit may include position information of the wireless unit, the type of the antenna, and azimuth information of the antenna. If the antenna type of the wireless unit is a sector antenna, the wireless unit can provide communication services within a sectoral range of a predetermined angle through the sector antenna.

The azimuthal information of the sector antenna may be an intermediate angle of the predetermined angle.

The location determination unit 310 can determine the location of the mobile terminal 100 based on the azimuth information of each of a plurality of wireless units that provide communication services to the mobile terminal 100.

The position determination unit 310 can calculate the intersection of the azimuth angles of each of the plurality of wireless units.

The transmitting unit 320 may transmit the location of the positioned mobile terminal 100 to the mobility management entity 130.

Those skilled in the art will appreciate that each of the local database 300, the location locating unit 310 and the transferring unit 320 may be implemented separately or at least one of them may be integrated.

10 is an operational flow diagram illustrating a method of providing a location of a mobile terminal, in accordance with an embodiment of the present invention.

The method for providing location information of the mobile terminal according to the embodiment shown in FIG. 10 is the same as that of the mobile terminal 100, the base station 110, the location positioning system 120, 130 and base station database 140 in a time-series manner. Therefore, the contents described with respect to the mobile terminal 100, the base station 110, the location positioning system 120, the mobility management entity 130, and the base station database 140 of FIGS. 1 to 9 The present invention can also be applied to a method of providing a location of a mobile terminal according to the embodiment shown in FIG.

Referring to FIG. 10, in step S1001, the location positioning system 120 periodically requests the base station database 140 for information of the radio unit and information of the digital unit.

In step S1003, the base station database 140 may synchronize the information of the radio unit stored in the base station database 140 and the information of the digital unit to the location positioning system 120. [

In step S1005, the location positioning system 120 may store and manage the information of the radio unit and information of the digital unit transmitted from the base station database 140. [

In step S1007, the location positioning system 120 may receive the location information request message of the mobile terminal 100 from the mobility management entity 130. [

In step S1009, the location positioning system 120 extracts information of a plurality of radio units corresponding to the information of the digital unit based on the information of the digital unit included in the location information request message of the mobile terminal 100, The mobile terminal 100 can be positioned based on a plurality of wireless units.

In step S1011, the location positioning system 120 may transmit the location of the positioned mobile terminal 100 to the mobility management entity 130. [

In the above description, steps S1001 to S1011 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. Also, some of the steps may be omitted as necessary, and the order between the steps may be changed.

11 is a flowchart illustrating a method of positioning a mobile terminal according to an embodiment of the present invention.

The method of positioning a mobile terminal according to the embodiment shown in FIG. 11 is the same as that of the mobile terminal 100, the base station 110, the location positioning system 120, the mobile management entity 130 and base station database 140 in a time-series manner. Therefore, the contents described with respect to the mobile terminal 100, the base station 110, the location positioning system 120, the mobility management entity 130, and the base station database 140 of FIGS. 1 to 10 The present invention can also be applied to a positioning method of a mobile terminal according to the embodiment shown in FIG.

Referring to FIG. 11, in step S1101, the location positioning system 110 may receive the location information request message of the mobile terminal 100 including the information of the digital unit from the mobility management entity 130. FIG.

In step S1103, the location positioning system 110 may extract information of a plurality of wireless units corresponding to information of the digital unit from the database based on the information of the digital unit included in the location information request message.

In step S1105, the location positioning system 110 can determine the location of the mobile terminal 100 based on the azimuth information included in the extracted information of the plurality of wireless units. Here, the information of the wireless unit may include position information of the wireless unit, the type of the antenna, and azimuth information of the antenna.

In step S1107, the location positioning system 110 may transmit the location of the positioned mobile terminal 100 to the mobility management entity 130 as a response to the location information request message.

Although not shown in FIG. 11, in step S1105, the location positioning system 110 calculates the intersection of azimuth angles of each of the plurality of wireless units based on the azimuth information of each of the plurality of wireless units, and determines the location of the mobile terminal 100 .

Although not shown in FIG. 11, in step S1107, the location positioning system 110 may transmit the calculated intersection point to the mobility management entity 130 as the location of the mobile terminal 100. [

In the above description, steps S1101 to S1107 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. Also, some of the steps may be omitted as necessary, and the order between the steps may be changed.

One embodiment of the present invention may also be embodied in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

100:
110: base station
120: Position location system
130: mobile management object
140: base station database

Claims (17)

A system for positioning a mobile terminal to which a communication service is provided,
A storage unit for storing and managing information of a digital unit (DU) corresponding to information of a plurality of radio unit (RU) and information of the radio unit;
A receiver for receiving a location information request message of a mobile terminal including information of a digital unit from a mobile management entity (MME);
An extracting unit for extracting information of a plurality of radio units corresponding to information of the digital unit based on the information of the digital unit included in the location information request message;
A positioning unit for positioning a position of the mobile terminal based on the azimuth information included in the extracted information of the plurality of wireless units; And
And transmitting the location of the positioned mobile terminal to the mobility management entity as a response to the location information request message,
, ≪ / RTI &
Wherein the extracting unit extracts information of a first wireless unit and information of a second wireless unit providing a communication service to the mobile terminal based on information of the digital unit included in the location information request message,
Wherein the position locator calculates an intersection of an azimuth of the first wireless unit and an azimuth of the second wireless unit based on the azimuth information of the first wireless unit and the azimuth information of the second wireless unit, And estimates the location of the mobile terminal based on the location information.
delete delete The method according to claim 1,
And the transmitting unit transmits the calculated intersection point to the mobility management entity as a location of the mobile terminal.
The method according to claim 1,
Wherein the information of the first wireless unit and the information of the second wireless unit include position information of the wireless unit, type of antenna, and azimuth information of the antenna.
The method according to claim 1,
Wherein the first wireless unit and the second wireless unit include a sector antenna and provide communication services within a sectoral range of a predetermined angle through the sector antenna,
Wherein the azimuth information of the sector antenna is an intermediate angle of the predetermined angle.
The method according to claim 1,
The extracting unit further extracts information of the third wireless unit,
Wherein the position locator calculates an intersection of the azimuth information of the first wireless unit, the azimuth information of the second wireless unit, and the azimuth information of the third wireless unit.
8. The method of claim 7,
And the transmitting unit transmits the calculated intersection point to the mobility management entity as a location of the mobile terminal.
The method according to claim 1,
Wherein the communication service is a communication service using an LTE (Long Term Evolution) network.
1. A method for positioning a mobile terminal to which a communication service is provided,
Receiving a location information request message of a mobile terminal including information of a digital unit (DU) from a mobile management entity (MME);
Extracting information of a plurality of radio units (RUs) corresponding to the information of the digital unit from the database based on the information of the digital unit included in the location information request message;
Positioning the position of the mobile terminal based on azimuth information included in the extracted information of the plurality of wireless units; And
Transmitting the location of the positioned mobile terminal to the mobility management entity as a response to the location information request message
, ≪ / RTI &
The step of extracting information of the plurality of radio units from the database
And extracting information of a first wireless unit and information of a second wireless unit that provide a communication service to the mobile terminal based on the information of the digital unit included in the location information request message,
The step of positioning the mobile terminal
Calculating an azimuth of the first wireless unit and an azimuth of the second wireless unit based on the azimuth information of the first wireless unit and the azimuth information of the second wireless unit, And estimating the position of the terminal.
delete 11. The method of claim 10,
Wherein the communication service is a communication service using an LTE (Long Term Evolution) network.
A system for providing a location of a mobile terminal to which a communication service is provided,
A base station database for storing and managing information of a radio unit (RU) and information of a digital unit (DU); And
Location location system,
The location positioning system comprises:
An area database for synchronizing information of the radio unit and information of the digital unit stored in the base station database;
Information of a plurality of radio units corresponding to information of the digital unit based on information of a digital unit included in a location information request message of the mobile terminal received from a mobile management entity (MME) A positioning unit for positioning the mobile terminal based on azimuth information included in the extracted information of the plurality of wireless units; And
And a transmission unit for transmitting the location of the positioned mobile terminal to the mobility entity
, ≪ / RTI &
The location location determination unit extracts, from the base station database, information of the first radio unit and the information of the second radio unit providing the communication service to the mobile terminal based on the information of the digital unit included in the location information request message,
Calculating an azimuth of the first wireless unit and an azimuth of the second wireless unit based on the azimuth information of the first wireless unit and the azimuth information of the second wireless unit, And estimates the location of the terminal.
delete 14. The method of claim 13,
Wherein the information of the first wireless unit and the information of the second wireless unit include position information of the wireless unit, type of antenna, and azimuth information of the antenna.
16. The method of claim 15,
Wherein the first wireless unit and the second wireless unit include a sector antenna and provide communication services within a sectoral range of a predetermined angle through the sector antenna,
Wherein the azimuthal information of the sector antenna is an intermediate angle of the predetermined angle.
14. The method of claim 13,
Wherein the communication service is a communication service using an LTE (Long Term Evolution) network.

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