KR20180117346A - System and Method for Positioning Using Beam Scan of 5G Base Station - Google Patents

Abstract

The present invention relates to a position measuring system and method using a beam scan of a 5G base station in a 5G communication system. A position measuring apparatus according to the present invention includes: a wireless communication receiving unit for receiving information of a beam responded in a terminal among a plurality of unit beams beam-formed by differentiating an angle in a first base station, from the first base station; a storage unit for storing position information of a plurality of base stations; and a terminal position measuring unit for calculating the position of the terminal using the position information of the first base station and the information of the beam received from the first base station. Accordingly, the present invention can improve precision and accuracy.

Description

TECHNICAL FIELD [0001] The present invention relates to a position measurement system and method using a beam scan of a 5G base station,

The present invention relates to a position measurement system and method, and more particularly, to a position measurement system and method using beam scanning of a 5G base station in a 5G communication system supporting a higher data rate than a 4G communication system such as LTE.

Location positioning is a key technology in the autonomous vehicle, which is expected to be a major service field in the future, as well as a service for confirming the location of a lost terminal and a service for providing shopping information in an area where the terminal is located. Conventionally known location determination technologies include a technology using GPS, a technology using a wireless LAN, and a technology using a 4G mobile communication base station.

However, there is a disadvantage that the technology using GPS can not be used indoors, and there is a restriction that it is difficult to use the technology using the wireless LAN outdoors. In addition, the positional positioning using the 4G mobile communication base station may be performed by measuring the position of the user by measuring the angle of propagation from the user terminal at the individual base station, or measuring the arrival time of the signal transmitted from the base station to which the user belongs and the signal transmitted from the neighbor base stations Difference, which has the following disadvantages.

First, in the method of measuring the position of the user by measuring the angle of propagation from the user terminal, it is necessary to check how the individual base station has received the radio wave from the terminal at an angle. There is a problem that it is difficult to use the image, and even if it is constructed, the production cost increases. In addition, the method of using the arrival time difference of signals from the base stations has a disadvantage in that time synchronization between the access points is required and accuracy is degraded due to errors due to multi-path generation.

On the other hand, 5G mobile communication system has recently become an issue, and 5G using millimeter wave band radio wave is less likely to multipath than existing LTE frequency band (microwave). Various studies have been conducted to solve the above-mentioned disadvantages of positional positioning with the 5G frequency characteristic.

Korean Patent Registration No. 10-1642266 entitled " Positioning Device for Mobile Communication Terminal, Positioning Information Construction Method and Positioning Method "

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

It is an object of the present invention to provide a position measuring system and method using a beam scanning of a simple and high-precision 5G base station by performing positional positioning based on a beam having angle information.

It is an object of the present invention to provide a position measuring system and method using beam scanning of a highly accurate 5G base station by lowering the possibility of multipath occurrence by performing positional positioning using radio waves of millimeter wave band.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

A positioning apparatus according to one aspect includes: a wireless communication receiving unit for receiving, from a first base station, beam information of a plurality of unit beams that are beamformed at different angles in a first base station; A storage unit for storing location information of a plurality of base stations; And a terminal position locator for calculating a position of the terminal using the information of the beam received from the first base station and the position information of the first base station.

Wherein the information of the beam includes angle information and a time of arrival of the radio wave and the terminal position locator calculates the position of the terminal using the propagation time, the angle information, and the position information of the first base station .

Wherein the wireless communication receiving unit receives from the second base station information of a beam responded at the terminal among a plurality of beamformed beamformed beams at different angles from a second base station, The position of the terminal is calculated using the information of the beam received from the base station and the position information of the first and second base stations.

Wherein the information of the beam includes angle information and the terminal position locator calculates the position of the terminal by triangulation using the identification information and the position information of the first and second base stations.

The beam responded by the terminal is the most received beam among the plurality of beamformed unit beams at the terminal.

The first and second base stations are each a 5G base station.

According to another aspect of the present invention, there is provided a method of measuring a position of a terminal communicating with at least one base station in a positioning apparatus connected to at least one base station, the method comprising: storing position information of the at least one base station; Receiving from a first base station information of a beam of a plurality of unit beams that are beamformed at angles different from each other in a first base station; And calculating the position of the terminal using the information of the beam received from the first base station and the position information of the first base station.

Wherein the information of the beam includes angle information and a time of arrival of the radio wave and the step of calculating the position of the terminal includes calculating the position of the terminal using the propagation time, the identification information, .

Wherein the step of receiving comprises receiving information of a beam from the second base station among the plurality of beamformed beamformed beams at different angles from the second base station and calculating the position of the terminal, The location of the terminal is calculated using the information of the beam received from the first and second base stations and the location information of the first and second base stations.

Wherein the information of the beam includes angle information and the step of calculating the position of the terminal includes calculating the position of the terminal by triangulation using the angle information and the position information of the first and second base stations .

The beam responded by the terminal is the most received beam among the plurality of beamformed unit beams at the terminal.

The first and second base stations are each a 5G base station.

The present invention has the following effects with the above-described configuration.

According to the present invention, the positioning method is simple and highly accurate at the same time by performing positional positioning with a feedback signal of a beam having angle information.

The present invention lowers the possibility of multipath generation by performing positional positioning using radio waves of millimeter waveband, and has high accuracy.

1 is a block diagram schematically illustrating a position measurement system using beam scanning of a 5G base station according to an exemplary embodiment.
2 is a block diagram illustrating the function of the 5G base station of FIG.
3 is a block diagram illustrating the function of the positioning server of Fig.
4 is a view for explaining a beam scanning shape performed in a 5G base station and a beam responding in a terminal according to an embodiment.
5 is a conceptual diagram illustrating positioning of a mobile station by beam scanning of a single base station according to an embodiment of the present invention.
FIG. 6 is a diagram for explaining a mathematical concept for positional positioning of FIG. 5; FIG.
7 is a flow chart illustrating terminal positioning for FIG.
8 is a conceptual diagram illustrating positioning of a UE by triangulation by performing beam scanning of two base stations according to another embodiment.
FIG. 9 is a diagram for explaining a mathematical concept for positional positioning in FIG. 8; FIG.
10 is a flowchart for explaining terminal positioning for FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art. Furthermore, although specific terms have been used in the drawings and specification of the present invention, they have been used for the purpose of describing the present invention only and not for limiting the scope of the present invention described in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

A detailed description will now be made of a position measuring system and method using beam scanning of the 5G base station of the present invention with reference to the drawings.

1 is a block diagram schematically illustrating a position measurement system using beam scanning of a 5G base station according to an exemplary embodiment.

Referring to FIG. 1, a position measurement system 1 using beam scanning of a 5G base station may include a 5G base station 10 (10a, 10b), a terminal 20, and a positioning server 30.

The 5G base stations 10 (10a, 10b) perform beam scanning by sequentially beamforming a plurality of unit beams at different angles. According to the beamforming, the directivity increases in a specific direction, the propagation distance increases, and the propagation is hardly transmitted in a direction other than the specific direction, and the influence on other terminals is greatly reduced.

According to one embodiment, the 5G base station 10 (10a, 10b) can beam-form by including identification information in a plurality of unit beams having different radiated directions. The identification information may be different information for each of a plurality of unit beams, and may be implemented, for example, as a standard for feeding back information on which of the plurality of beams the terminal 20 has received. In addition, the 5G base station 10 may be implemented as a 5G base station using a radio wave of a millimeter wave band.

The terminal 20 can select the most received beam among the plurality of beamformed beamformed in the 5G base station 10 and can feedback the selected beam identification information to the 5G base station 10. [ According to an embodiment, the terminal 20 can be implemented as a portable terminal or the like carried by a user who is provided with a service as a positioning target, but is not limited thereto and can be implemented by various electronic apparatuses to be positioned.

The positioning server 30 can receive the information of the beam responded by the terminal 20 from the 5G base station 10 and measure the position of the terminal 20. [

2 is a block diagram illustrating the function of the 5G base station of FIG.

Referring to FIG. 2, the 5G base station 10 may include a beam scanning unit 11, a feedback signal receiving unit 13, and a base station information transmitting unit 15.

The functions of the beam scanning unit 11, the feedback signal receiving unit 13 and the base station information transmitting unit 15 are stored in the memory so that the one And may be implemented in the 5G base station 10 in the form of a program executed by the above processor.

The beam scanning unit 11 performs beam scanning by sequentially beamforming a plurality of unit beams at different angles. According to one embodiment, the beam scanning unit 11 may perform beamforming by including identification information in a plurality of unit beams having different radiated directions. In addition, the beam scanning unit 11 may set the number and the direction angle of the unit beams covering the beam scanning area so that the beam forming is performed on the entire beam scanning area.

The feedback signal receiving unit 13 can receive a signal fed back from the terminal 20. Herein, the feedback signal may include beam identification information for beams most strongly received by the terminal 20 among a plurality of beamformed beamformed beams at different angles.

The base station information transmission unit 15 can confirm the received beam information, that is, the beam identification information, by the feedback signal receiving unit 13 and transmit the corresponding angle information to the positioning server 30. The base station information transmitting unit 15 may transmit the identification information of the 5G base station 10 to the positioning server 30 together with the information of the beam responded by the terminal 20 according to the embodiment.

3 is a block diagram illustrating the function of the positioning server of Fig.

Referring to FIG. 3, the positioning server 30 may include a wireless communication receiver 31, a terminal position locator 33, and a server memory 35.

Also, the positioning server 30 may include a memory and one or more processors, and the functions of the wireless communication receiver 31 and the terminal position locator 33 may be stored in the memory and executed by the one or more processors And can be implemented in the positioning server 30 in a program form.

The wireless communication receiving unit 31 is connected to at least one or more 5G base stations 10 through a wireless network to transmit information of beams received from the terminal 20 among a plurality of beamformed beamformed at the 5G base station 10, (10).

The terminal position locating unit 33 can calculate the position of the terminal 20 using the beam information received from the 5G base station 10 and the position information of the 5G base station 10 stored in the server memory 35. [ Here, the terminal position determination unit 33 can extract the position information of the 5G base station 10 stored in the server memory 35 based on the identification information of the 5G base station 10 received together with the beam information.

The server memory 35 may comprise volatile and / or nonvolatile memory. For example, the server memory 35 may store instructions or data related to at least one other component of the location server 30. [ According to one embodiment, the server memory 35 may store software and / or programs.

In addition, according to one embodiment, the server memory 35 may store a program capable of calculating the location of the terminal 20, and may store location information of a plurality of 5G base stations 10.

4 is a view for explaining a beam scanning shape performed in a 5G base station and a beam responding in a terminal according to an embodiment.

Referring to FIG. 4, the 5G base station 10 sequentially performs beamforming of 11 unit beams b1, b2, ..., b11 to perform beam scanning and transmits the beam b6 received from the terminal 20 most strongly Can be received. The 5G base station 10 has previously stored angle information for 11 unit beams b1, b2, ..., b11, and can insert identification information into each beam and transmit it. When the terminal 20 responds to the beam identification information, the 5G base station 10 can search for the angle information of the beam based on the identification information and transmit it to the positioning server 30.

In addition, the 5G base station 10 can estimate the number of beams to cover the beam scan area, and is not limited to the number of beams shown in FIG.

FIG. 5 is a conceptual diagram illustrating positioning of a terminal by beam scanning of a single base station according to an embodiment, FIG. 6 is a diagram illustrating a mathematical concept for positioning of FIG. 5, Fig.

5 to 7, the positioning server 30 may store position information of at least one base station 10 (S61).

The positioning server 30 receives the information (ex, b5) of the beams responded from the terminal 20 among the plurality of unit beams that are beamformed at different angles at the first base station 10a from the first base station 10a (S63). The positioning server 30 can calculate the position of the terminal 20 using the beam information ex and b5 received from the first base station 10a and the position information of the first base station 10a at step S65. Here, the beam responded by the terminal 20 can be defined as a beam received most strongly by the terminal 20 among the plurality of beamformed unit beams, and according to the embodiment, the first base station 10a is implemented as a 5G base station .

5 and 6, the information ex, b5 of the beam may include angle information alpha of the beam and propagation time T, and the positioning server 30 The position (X, Y) of the terminal 20 can be calculated using the propagation time T, the angle information? Of the beam, and the position information x, y of the first base station 10a.

The 5G base station 10 can radiate the radiation time into the beam and the terminal 20 receiving the beam compares the reception time to calculate the arrival time of the beam, i.e., the radio wave arrival time T, 10). ≪ / RTI > According to another embodiment, the 5G base station 10 may measure the round trip time of the beam and calculate the propagation time T based thereon.

Therefore, the positioning server 30 can calculate the straight line distance D between the 5G base station 10 and the terminal 20 by multiplying the propagation velocity V and the radio wave arrival time T. Further, the positioning server 30 30 receives the angle information of the beam and stores the position information x and y of the first base station 10a in the server memory 35, (X, Y) can be calculated. Also, the mathematical formula (ex, trigonometric function) is a well-known formula and is omitted from the description.

FIG. 8 is a conceptual diagram illustrating positioning of a terminal by triangulation by performing beam scanning of two base stations according to another embodiment, FIG. 9 is a view for explaining a mathematical concept for positioning of FIG. 8, 8 of FIG.

Referring to FIGS. 8 to 10, the positioning server 30 may store position information of at least one base station 10 (S81).

The positioning server 30 transmits the beam information b4 and b6 of the plurality of unit beams that are beamformed at different angles in the first base station 10a and the second base station 10b, From the base station 10a and the second base station 10b, respectively (S83).

The positioning server 30 receives the beam information b4 received from the first base station 10a, the beam information b6 received from the second base station 10b and the position information x1 of the first base station 10a (X, Y) of the terminal 20 can be calculated by triangulation using the position information (x2, y2) of the first base station 10a, y1 and the second base station 10b (S85). Here, the beams b4 and b6 responded by the terminal 20 are defined as the beams most strongly received by the terminal 20 among the plurality of beamformed beamformed beams at the first base station 10a and the second base station 10b . The first base station 10a and the second base station 10b may be implemented as a 5G base station according to an embodiment.

8 and 9, the information b4 of the beam received from the first base station 10a may include angle information? And may be received from the second base station 10b The information b6 of the beam that has been beamed may include angle information?. The positioning server 30 also uses the angle information α and β and the position information x1 and y1 of the first base station 10a and the position information x2 and y2 of the second base station 10b, 20) can be calculated.

9, the positioning server 30 uses the position information (x1, y1) of the first base station 10a and the position information (x2, y2) of the second base station 10b stored in the server memory 35 So that the straight line distance d between both base stations can be calculated. The positioning server 30 calculates the position X of the terminal 20 by using a simple mathematical formula (ex, trigonometric function) with the received angle information? And? As the basis ratios of the calculated straight line distance d, Y) can be calculated. Also, the mathematical formula (ex, trigonometric function) is a well-known formula and is omitted from the description.

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. In addition, the features described in the individual embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in the singular < Desc / Clms Page number 5 > embodiments herein may be implemented in various embodiments individually or in combination as appropriate.

Although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed to obtain a sequence of sequential orders, or a desired result . In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above can be implemented by a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto optical disk, etc.). Such a process can be easily carried out by those skilled in the art and will not be described in detail.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

10: 5G base station 20: terminal
30: positioning server

Claims (12)

A wireless communication receiving unit for receiving, from the first base station, beam information of a plurality of unit beams beamformed at angles different from each other in a first base station;
A storage unit for storing location information of a plurality of base stations; And
A terminal position locator for calculating a position of the terminal using the information of the beam received from the first base station and the position information of the first base station;
The positioning apparatus comprising: The method according to claim 1,
The information of the beam includes angle information and propagation time,
The terminal position locating unit,
And calculates the position of the terminal using the propagation time, the angle information, and the position information of the first base station. The method according to claim 1,
Wherein the wireless communication receiver comprises:
From the second base station, information of a beam responded at the terminal among a plurality of beamformed beamformed at different angles from the second base station,
The terminal position locating unit,
And calculates the position of the terminal using the information of the beam received from the first and second base stations and the position information of the first and second base stations. The method of claim 3,
Wherein the information of the beam includes angle information,
The terminal position locating unit,
And calculates the position of the terminal by triangulation using the angle information and the position information of the first and second base stations. The method according to claim 1,
The beam, which is responded by the terminal,
Wherein the beam is a beam most strongly received by the terminal among the plurality of beamformed unit beams. 6. The method according to any one of claims 1 to 5,
The first and second base stations include:
5G base station. A method for measuring a position of a terminal communicating with at least one base station in a positioning apparatus connected to at least one base station,
Storing location information of the at least one base station;
Receiving from a first base station information of a beam of a plurality of unit beams that are beamformed at angles different from each other in a first base station; And
Calculating a position of the terminal using the information of the beam received from the first base station and the position information of the first base station;
And transmitting the positioning information. 8. The method of claim 7,
The information of the beam includes angle information and propagation time,
The step of calculating the position of the terminal may include:
And calculating the location of the terminal using the propagation time, the angle information, and the location information of the first base station. 8. The method of claim 7,
Wherein the receiving comprises:
From the second base station, information of a beam responded at the terminal among a plurality of beamformed beamformed at different angles from the second base station,
The step of calculating the position of the terminal may include:
Wherein the location of the terminal is calculated using the information of the beam received from the first and second base stations and the location information of the first and second base stations. 10. The method of claim 9,
Wherein the information of the beam includes angle information,
The step of calculating the position of the terminal may include:
Wherein the location of the terminal is calculated by triangulation using the angle information and the location information of the first and second base stations. 8. The method of claim 7,
The beam, which is responded by the terminal,
Wherein the beam is a beam received most strongly among the plurality of beamformed unit beams. 12. The method according to any one of claims 7 to 11,
The first and second base stations include:
5G base station.

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