KR20180127135A - A reflector for changing the directionality of a wireless communication beam and an apparatus comprising thereof - Google Patents

Abstract

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate after a 4G communication system like LTE. According to an embodiment of the present invention, a reflector enables a receiver located to be separated from an arbitrary object to receive a beam by changing the direction of the beam so that the beam incident in a first direction has a second direction. A dead zone in which the beam dose not reach in a 5G wireless communication system can be removed by the reflector.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reflector for changing the directionality of a wireless communication beam and an apparatus including the reflector,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication system, and more particularly, to a reflector including a reflector for changing the direction of a 5G wireless communication beam and an apparatus including the reflector.

Efforts are underway to develop an improved 5G or pre-5G communication system to meet the growing demand for wireless data traffic after commercialization of the 4G communication system. For this reason, a 5G communication system or a pre-5G communication system is referred to as a 4G network (Beyond 4G Network) communication system or a post-LTE system (Post LTE) system.

In order to achieve a high data rate, the 5G communication system is considered to be implemented in a very high frequency (mmWave) band. In order to mitigate the path loss of the radio wave in the very high frequency band and to increase the propagation distance of the radio wave, in the 5G communication system, beamforming, massive MIMO, full-dimension MIMO (FD-MIMO ), Array antennas, analog beam-forming, and large scale antenna technologies are being discussed.

Further, in order to improve the network of the system, the 5G communication system has developed an advanced small cell, an advanced small cell, a cloud radio access network (cloud RAN), an ultra-dense network (D2D), a wireless backhaul, a moving network, a cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation ) Are being developed.

In addition, in the 5G system, the Advanced Coding Modulation (ACM) scheme, Hybrid FSK and QAM Modulation (FQAM) and Sliding Window Superposition Coding (SWSC), the advanced connection technology, Filter Bank Multi Carrier (FBMC) (non-orthogonal multiple access), and SCMA (sparse code multiple access).

Meanwhile, the 5G wireless communication system transmits a signal using a beam formed by beam forming in a very high frequency (mmWave) band, so that a shaded region in which the beam does not reach may occur depending on the position of the receiver.

Therefore, there is a need for a method for removing the shaded area in the 5G wireless communication system.

According to the above-mentioned necessity, the present invention aims to remove a shaded area in which a beam does not reach in a 5G wireless communication system.

According to an embodiment of the present invention, the reflector changes the direction of the beam so that the beam incident in the first direction has a second direction so that a receiver positioned away from any object receives the beam .

Meanwhile, an apparatus according to another embodiment of the present invention changes the direction of the beam so that a beam incident in a first direction has a second direction, and a receiver positioned away from any object receives the beam And a fixing unit for fixing the reflector at an arbitrary position.

According to the embodiment of the present invention, it is possible to remove the shaded area where the beam does not reach in the 5G wireless communication system.

Figures 1A and 1B illustrate an embodiment in which a beam is transmitted according to the location of a 5G base station,
FIGS. 2A to 2F are views showing a method of providing a reflection device for removing a shadow area generated by an object through which a beam is not transmitted, and FIGS.
Figures 3A-3D illustrate an embodiment in which a reflector changes the direction of a beam passing through a window, according to one embodiment of the present invention;
FIGS. 4A and 4B are graphs showing transmission loss and antenna loss of a terminal according to an incident angle of a beam passing through a glass window,
Figures 5A-5E illustrate a reflective device attached to a window frame, in accordance with various embodiments of the present invention;
6A-6D are diagrams illustrating possible reflective device features and effects thereon, in accordance with various embodiments of the present invention;
Figure 7 illustrates a reflector implemented in a V shape in accordance with another embodiment of the present invention,
8A to 8C are views for explaining the shape of a reflection device implemented in a V shape and a method of attaching the reflection device to a window or a window frame,
9 is a view showing a reflector capable of changing the angle of reflection of a reflector by controlling the structure of a unit cell according to an embodiment of the present invention;
10A-I illustrate a reflector that can change the angle of reflection of a reflector by controlling the shape of the reflector, in accordance with various embodiments of the present invention,
11A and 11B are diagrams illustrating the effect of installing a reflector according to an embodiment of the present invention,
12 is a view showing a reflector installed using a bracket according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the exemplary embodiments of the present invention, descriptions of known techniques that are well known in the art and are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated. Also, the size of each component does not entirely reflect the actual size. In the drawings, the same or corresponding components are denoted by the same reference numerals.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

At this point, it will be appreciated that the combinations of blocks and flowchart illustrations in the process flow diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that those instructions, which are executed through a processor of a computer or other programmable data processing apparatus, Thereby creating means for performing functions. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory The instructions stored in the block diagram (s) are also capable of producing manufacturing items containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible for the instructions to perform the processing equipment to provide steps for executing the functions described in the flowchart block (s).

In addition, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative implementations, the functions mentioned in the blocks may occur out of order. For example, two blocks shown in succession may actually be executed substantially concurrently, or the blocks may sometimes be performed in reverse order according to the corresponding function.

Herein, the term " part " used in the present embodiment means a hardware component such as software or an FPGA or an ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

The terminal according to the present invention can generally include a mobile terminal and can indicate a device that is subscribed to the mobile communication system and is to be provided with a service from the mobile communication system. The mobile terminal may include a smart device such as a smart phone or a tablet PC, which is an example and the present invention is not limited thereto.

In the following description, terms used to identify a connection node, a term referring to network entities, a term referring to messages, a term referring to an interface between network objects, And the like are illustrated for convenience of explanation. Therefore, the present invention is not limited to the following terms, and other terms referring to objects having equivalent technical meanings can be used.

For convenience of explanation, the present invention uses terms and names defined in 3GPP LTE (3rd Generation Partnership Project Long Term Evolution) standard. However, the present invention is not limited by the above-mentioned terms and names, and can be equally applied to systems conforming to other standards.

A structure of a next generation mobile communication system to which the present invention can be applied will be briefly described. A radio access network of a next generation mobile communication system (hereinafter referred to as NR (new radio) or 5G) is composed of a next generation base station (NR gNB or NR base station) and NR CN (New Radio Core Network). A user terminal (NR UE or UE) connects to an external network through NR gNB and NR CN.

NR gNB corresponds to eNB (Evolved Node B) of existing LTE system. The NR gNB is connected to the NR UE via a radio channel and can provide better service than the existing Node B. In the next generation mobile communication system, since all user traffic is served through a shared channel, a device for collecting and scheduling state information such as buffer status, available transmission power state, and channel state of UEs is required. . One NR gNB typically controls multiple cells. In order to realize high-speed data transmission in comparison with the current LTE, it can have an existing maximum bandwidth or more, and additionally, beam-forming technology can be applied by using Orthogonal Frequency Division Multiplexing (OFDM) as a radio access technology . In addition, Adaptive Modulation and Coding (AMC) scheme is used to determine a modulation scheme and a channel coding rate in accordance with a channel state of a UE. The NR CN performs mobility support, bearer setup, and QoS setup. The NR CN is a device that performs various control functions as well as a mobility management function for a terminal, and is connected to a plurality of base stations. The next generation mobile communication system can also be interworked with the existing LTE system, and the NR CN is connected to the MME through a network interface. The MME is connected to the eNB, which is an existing base station.

Hereinafter, a base station according to an embodiment of the present invention may refer to a 5G base station that transmits a signal using a beam formed by beamforming in an ultra-high frequency (mmWave) band as described above.

1A and 1B are views showing an embodiment in which a beam is transmitted according to the position of a base station. Specifically, FIGS. 1A and 1B are views showing a base station 100 and a plurality of receiving ends 110 for transmitting beams.

The receiving terminal 110 may be CPE (customer-premises equipment) connected to a service of a terminal or a communication service provider and connected to devices in a building via a LAN (Local Access Network). The CPE can be viewed as a terminal fixed at an arbitrary position. Alternatively, the receiving terminal 110 may be a building such as a house including at least one of the terminal and the CPE.

For example, if the receiving terminal 110 is a building with the CPE installed externally, it is more preferable that the base station transmits the beam in the direction shown in FIG. 1B than the base station transmits the beam in the direction shown in FIG. 1A It can be more advantageous. The beam transmitted from the base station is transmitted in a certain direction by beam forming, so that the beam transmitted in the direction shown in FIG. 1B can be transmitted to more buildings.

On the other hand, when the receiving terminal 110 is a building in which the CPE is installed, if the base station transmits the beam in the direction as shown in FIG. 1B, the probability of loss may be increased while transmitting through the window of the building.

And the building includes a window parallel to the direction of the beam transmitted from the base station. At this time, the beam transmitted by the base station shown in FIG. 1B may increase in loss due to an increase in the amount of reflection of the 5G beam by the glass depending on the direction of incidence and the angle of the window included in the building.

Accordingly, if the amount of reflection of the beam increases through the glass window of the building according to the incidence direction of the beam, the reception rate of the 5G signal decreases inside the building. As the reception rate of the 5G signal is reduced, the inside of the building may be a shaded area for the 5G signal.

2A, when an arbitrary object 210 in which a 5G beam 200 such as a tree can not pass exists, the direction opposite to the transmission direction of the 5G beam 200 is a shaded region 220). For example, if a building such as a house is located in the shaded area 220, the transmission rate of the 5G beam 200 may be reduced in the house.

Accordingly, the present invention proposes a method for removing a shadow region for a 5G signal, which can be generated by reflecting or not transmitting a 5G beam at a specific position.

Specifically, FIGS. 2A to 2F are views showing a method of providing a reflection device for removing a shaded area generated by an object through which a beam is not transmitted, and a shape of the reflector.

As shown in FIG. 2A, the reflection device may be positioned opposite to the direction in which the 5G beam 200 is incident, corresponding to the arbitrary object 210. FIG. The reflective device may include a reflector 230 and a support 235. The reflector 230 may be fixed to one side of the ground or the building using the support portion 235.

It is possible to secure a reflective coverage as indicated by reference numeral 240 according to the size, shape, and angle of the reflector 230. Thus, the 5G beam 200 may be transmitted through the reflector 230 to a receiver present within the reflective coverage 240. For example, the reflector 230 allows the 5G beam 200 to be transmitted into a building, such as a terminal, a CPE, or a house that includes the terminal, the CPE, etc. existing in the reflection coverage 240.

FIG. 2B is a view showing the shape of the reflector 230 according to an exemplary embodiment of the present invention. For example, the reflector 230 may be a metal plate of any size and curved to any curvature.

As shown in FIG. 2B, preferably, the reflector 230 may have a length of 0.5 m in both the horizontal and vertical directions. The reflector 230 may be embodied as a fan-shaped arc having a center angle of 44 degrees and a radius of 67 cm.

Meanwhile, the reflector 230 may be formed in a flat shape. For example, although the reflector 230 is flat, the 5G beam may be dispersed at various angles. Specifically, as shown in FIG. 2C, the reflector 230 may include a plurality of unit cell arrays capable of reflecting beams in different directions. Each of the unit cell arrays may include a plurality of unit cells. The dispersion angle of the 5G beam through each unit cell array can be changed by adjusting at least one of the processing mode of the metal implementing the plurality of unit cells, the size, and the interval in which the plurality of unit cells are arranged.

Specifically, each of the plurality of unit cell arrays can change the directionality of a beam incident in the first direction from the second direction to the fifth direction. Accordingly, the 5G beam 200 incident in the first direction is incident on the beam 250 in the second direction, the beam 251 in the third direction, the beam 252 in the fourth direction, and the beam 252 in the second direction through each of the plurality of unit cell arrays, Beam 253 in the fifth direction. Thus, there is an effect that the transmission coverage of the 5G beam is widened.

2D is a diagram illustrating a structure of a unit cell 231 and a structure of a reflector 230 implemented as a unit cell array according to an embodiment. Each of the unit cells 231 may be formed of a metal. The reflector 230 implemented by the unit cell array may include a plurality of the unit cells 231. The unit cell 231 may include a plurality of unit cells 231 and 232 that can reflect the 5G beams incident in the first direction in different directions. For example, the first unit cell 231 may reflect the 5G beam incident in the first direction in the second direction, and the second unit cell 232 may reflect the 5G beam incident in the first direction in the third direction . According to another embodiment, by arranging the first unit cell 231 and the second unit cell 232 alternately, the unit cell array can reflect the 5G beam incident in the first direction in the fourth direction There is also. The unit cell array may further include a dummy unit cell 233.

Further, the reflection angle of the unit cell included in the reflector may be changed. This will be described in detail with reference to FIG.

The unit cell 910 included in the reflector 900 may be formed as a variable element. Specifically, depending on the shape of the unit cell 910, the reflection angle of the reflector 900 may be changed. For example, when the control unit 920 for changing the shape included in the unit cell 910 is not turned on, the unit cell 910 can direct the 5G beam incident in the first direction to the second direction . When the regulating unit 920 is turned on, a part of the unit cell 910 may be inactivated by the regulating unit 920. Accordingly, since the shape of the unit cell 910 is changed by the adjusting unit 920, the unit cell 910 can reflect the 5G beam incident in the first direction in the third direction.

The reflection device including the reflector 900 may include a communication unit and a control unit. Accordingly, when an instruction to control the regulating unit 920 of the reflector 900 is received through the communication unit, the control unit controls on / off of the regulating unit 920, (910).

9 shows that the adjustment unit 920 is included in one unit cell 910, but this is merely an example. By changing the shape of the unit cell 910, The number and position of the regulating portions for regulating the regeneration amount are not limited.

In addition, by changing the shape of the reflector, the reflection angle of the reflector may be changed. Specifically, this will be described with reference to Figs. 10A to 10I.

10A and 10B illustrate an embodiment in which a reflector 1000 included in a reflection device can reflect an incident 5G beam 1010 to a beam 1020 at a predetermined angle. In other words, the reflector 1000 of FIGS. 10A and 10B can reflect the 5G beam 1010 incident at the first angle to the predetermined second angle of the beam 1020. However, due to the difference in the shape of the reflector 1000, the coverage area 1040 by the reflector 1000 shown in FIG. 10B is smaller than the coverage area 1030 by the reflector 1000 shown in FIG. It can be wide.

10C and 10B illustrate an embodiment in which the reflector 1000 can reflect the incident 5G beam 1010 to a predetermined plurality of angles of beams 1020 and 1025. FIG. In other words, the reflector 1000 of FIGS. 10c and 10d can reflect the 5G beam 1010 incident at the first angle to the predetermined second angle beam 1020 and the third angle beam 1025 . However, due to the difference in the shape of the reflector 1000, the coverage area 1040 by the reflector 1000 shown in FIG. 10D is smaller than the coverage area 1030 by the reflector 1000 shown in FIG. It can be wide.

Depending on the location of the reflector 1000 or the characteristics of the installed space (for example, whether the 5G beam is incident on a large space such as a square, a narrow space such as an alley or a corner) The coverage area needs to be changed.

Alternatively, the coverage area may be changed by modifying the shape of the reflector 1000 according to seasonal and climatic characteristics of the place where the reflector 1000 is installed. For example, the shape of the reflector 1000 may be modified according to the density of the tree or leaves in the space where the reflector 1000 is installed. Specifically, in the case of summer, the shape of the reflector 1000 can be deformed so as to reflect the beam with a wide coverage as the density of the leaves of the leaves around the reflector 1000 increases. In winter, the shape of the reflector 1000 may be deformed so as to reflect the beam with a narrow coverage as the density of the leaves of the leaves becomes lower.

Accordingly, the reflector 1000 may further include a variable device 1060 for changing the shape of the reflector 1000. [ Specifically, as shown in FIG. 10E, the reflector 1000 can be regarded as including a position fixing point 1051 and a position variable point 1052. [ Accordingly, the position fixing point 1051 of the reflector 1000 can be fixed in an arbitrary area where the reflector 1000 is installed. A variable device 1060 for changing the shape of the reflector 1000 may be attached to the position variable point 1052. The position fixing point 1051 and the position variable point 1052 may be virtual points for naming a part of the reflector 1000 for convenience of explanation.

When it is necessary to reflect a 5G beam with a narrow area coverage, the variable device 1060 can fix the reflector 1000 in the form shown in Fig. 10E. And if it is necessary to reflect the 5G beam with a wider area of coverage, the shape of the reflector 1000 may be changed by adjusting the variable device 1060 in the form shown in Fig. 10F.

When the reflector 1000 is installed on the support 1070, the reflector 1000 can be fixed in the form as shown in FIG. 10G.

10G shows that the reflector 1000 is attached to two variable devices 1060 at two position change points 1052 but this is only an example and the number of the variable devices 1060 is not limited Do not.

10G, the reflector 1000 may be fixed to the support frame 1070 by connecting the position fixing point 1051 of the reflector 1000 with the support frame 1070. There may be a connecting device 1053 for connecting the supporting stand 1070 at a position fixing point 1051 located at each corner of the reflector 1000. [ At this time, the connection device 1053 may be implemented as a rod. Alternatively, the connection device 1053 may be implemented in a planar shape connecting all of the position fixing points 1051 located at the respective corners.

The shape of the reflector 1000 can be changed to the shape shown in FIG. 10E or 10F by changing the position where the variable device 1060 is fixed to the support member 1070 by the user. For example, if the length of the variable device 1060 is shortened and fixed to the support member 1070, the shape of the reflector 1000 may approach the shape shown in FIG. 10F.

On the other hand, the position of the position fixing point 1051 and the position variable point 1052 may be changed. 10H and 10I, the center portion of the reflector 1000 may be a position fixing point 1051 and may be connected to the support 1070. FIG. And a position variable point 1052 may be positioned at each corner of the reflector 1000. [ Thus, as shown in Figs. 10H and 10I, it is possible to deform the shape of the reflector 1000 in the opposite echo from Fig. 10G. 10h and 10i, the variable device 1060 may be connected to a position variable point 1052 located at each corner of the reflector 1000. In the embodiment shown in Figs. The apparatus 1070 for connecting the reflector 1000 with the support 1070 may be a fixed connection device that is not deformed in length or shape or may be a variable device for deforming the shape of the reflector 1000 .

The reflector 1000 may include a communication unit, a driver, and a controller. In other words, when a control signal for controlling the driving unit attached to the reflector 1000 is received through the communication unit, the control unit controls the driving unit so that the length of at least one of the variable device 1060 or the connecting device 1053 Can be controlled to be changed.

The control signal may be received at a predetermined time interval according to the area where the reflection device is installed, the characteristics of the space, the change of the season, and the like. Or the control signal may be received by a user input.

Meanwhile, as shown in FIG. 2E, the reflector 230 may be installed in the form of a pole using a support, or may be installed in a form attached to a wall.

2f is a view showing various embodiments in which a reflector is installed. As shown in FIG. 2F, the reflector may be implemented as a stand-type or wall-mounted type and may be installed at a position desired by the user. The reflector may also be installed in a conventional structure, such as a street lamp. The streetlight is merely an example, and the reflector may be installed in various structures such as a tree, a fire hydrant, and a billboard.

The reflector 230, which is installed in various forms, can control the shaded area caused by an obstacle such as a pole.

11A, when the pole 1100 having the height h exists in the traveling direction in which the 5G beam 1110 is transmitted, the shaded area 1120 by the pole 1100 is reflected by the 5G beam 1110) may be generated.

11B, the 5G beam 1110 can also be transmitted into the shaded area 1120. In this case, As described above, the reflection device 1130 may be installed in the form of a pole using a support, or attached to a part of a building, a wall, or the like.

3A to 3D are views showing an embodiment for removing a shadow area of a 5G beam by changing the direction of a beam transmitted through a window according to another embodiment of the present invention.

3A shows an embodiment in which a window 300 and a wall surface 310 on which a window frame or window frame is installed on an outer wall of a building and a CPE 330 as an example of a terminal fixed inside the building are installed. Specifically, the 5G base station may transmit a 5G signal from outside the building, and a CPE 330 may be installed inside the building to receive the 5G signal and transform it into a wireless communication signal such as a WiFi. The 5G signal may be transmitted to the CPE 330, which is obliquely transmitted through the window 300 of the building and spaced apart by a distance d.

When the window 300 is made of glass and the incident angle of the 5G beam to the window 300 is equal to 340, most 5G beams can be reflected by the glass.

For example, as shown in FIG. 3B, when it is assumed that a virtual line formed in the vertical direction in the window 300 means 0 degree, an incident angle such as 340 indicates an incident angle exceeding 60 degrees The 5G beam has a high reflectance and can be reflected as indicated by reference numeral 341. [

Accordingly, in the present invention, the reflection device 320 can be attached to the wall surface 310 provided with the window frame or the window frame to change the incidence direction of the 5G beam. The 5G beam incident in the first direction as indicated by reference numeral 250 is changed in the second direction by the reflector 320 so that the CPE 330 located at a distance from the window 300 can receive the 5G beam do. In other words, the reflector 320 allows the CPE 330, located in the opposite direction to the base station transmitting the beam around the window 300, to receive the beam.

For example, as shown in FIG. 3C, the reflector 320 may reflect the 5G beam incident in the first direction in a plurality of directions. Specifically, when the reflection device 320 is a unit cell array structure as described with reference to FIGS. 2A to 2E, or when the reflection device 320 is formed as a curved surface, the reflection device 320 may reflect the 5G The beam can be reflected in a plurality of directions. By the reflecting device 320, the range of the receiving coverage 325 of the 5G beam incident at an arbitrary angle can be widened.

Thus, as shown in FIG. 3D, the 5G beam can be transmitted to the receiving end 330 fixed at an arbitrary position inside the building, such as the CPE, through the reflecting device 320. FIG.

The reflection device 320 may further include a fixing portion. The fixing part may fix the reflecting device 320 at an arbitrary position such as a wall surface 310 on which the window frame or window frame is installed. For example, the reflective device 320 may have a reflective surface on one side and a fixed side on the other side.

The fixture may be intermingled with words such as a fastener or a support, and may include all components used to install, mount or attach the reflector of the reflector 320 to a surface or a side of a building.

4A and 4B are graphs showing transmission loss and antenna loss of a terminal according to an incident angle of a beam passing through a glass window.

Assuming that the imaginary line formed in the glass window 300 in the vertical direction toward the CPE 330 means 0 degree, when the incident angle of the 5G beam exceeds 60 degrees, as shown in FIG. 3A, It can be seen that the loss increases sharply.

In addition, as shown in FIG. 4B, when the angle of incidence of the 5G beam exceeds ± 60 degrees, it can be seen that the antenna loss rapidly increases in the terminal.

5A to 5E are views showing a reflection device attached to a wall surface provided with a window frame according to various embodiments of the present invention. The reflecting device may be collectively referred to as a device including a reflecting portion and a fixing portion.

5A is a view showing an embodiment in which a reflection device 320 is attached to a part of a wall surface 310 where a window frame or a window frame of the window 300 is installed, as described above.

5B is a view showing a reflective device 320 of a flat shape attached to a part of a wall surface 310 on which a window frame or a window frame of the window 300 is installed. The reflective device 320 may change the direction of the beam so that a beam incident in the first direction is incident on the window 300 in the second direction. For example, when the beam incident in the first direction is a beam incident on the window 300 in a direction perpendicular to the window 300 at a first angle or more, the reflection device 320 may reflect the beam in a direction perpendicular to the window 300 The direction of the beam can be changed to pass through the window 300 within a second angle.

Therefore, a receiving end such as the CPE 330 fixed to the inside of the building by the reflection device 320 can receive the 5G beam.

5C is a view showing a reflecting device including a reflecting portion protruding in a direction opposite to the fixing portion and the fixing portion according to another embodiment of the present invention. Specifically, as shown in FIG. 5C, the fixing portion 320-1 of the reflection device may be a flat surface so that the reflection device is attached to the wall surface 310 on which the window frame or the window frame is installed.

The reflector 320-2 protruding in the direction opposite to the fixing portion can change the 5G beam incident in the first direction into a beam having a plurality of directions. For example, the reflector 320-2 may be at least partially curved. Accordingly, when a 5G beam is incident on the curved surface of the reflector 320-2 in the first direction, the reflector 320-2 can be dispersed into a beam having a plurality of directions such that the components of the 5G beam are diversified .

FIG. 5C shows a case where the reflection device is implemented as a semi-cylindrical shape, but the reflection device may be implemented as a circular column or a conical column. Further, the inside of the reflection device may be empty or metal.

Depending on the size of the reflector 320-2, the direction in which the 5G beam is dispersed may be different. Accordingly, the size of the reflector 320-2 may vary depending on the size of the window to which the reflection device is attached, the location of the CPE 330 installed inside the building, and the like. For example, the size of the reflector 320-2 can be determined in consideration of the position of the CPE 330 so that a 5G beam can be incident through the window.

5D is a view illustrating an embodiment in which the reflector 320 is installed on a window sill in a protruding manner according to another embodiment of the present invention. And FIG. 5E is a view showing an embodiment in which the reflector 320 is installed in the window 300. FIG. A specific embodiment in which the reflector 320 is installed in the window 300 will be described later.

On the other hand, Figs. 6A to 6D are views showing possible reflection device shapes and effects according to various embodiments of the present invention.

6A, when the reflective device 320 and the CPE 330 are installed at intervals of 0.5 m inside and outside the window 300, the reflection device 320 changes the direction of the incident 5G beam to change the direction of the window 300 to allow for passage through the window 300 into a coverage having a length of L inside.

6B is a view showing a case where the reflection device 320 is installed in the same building as the base station 600. [ At this time, the reflector 320 can also change the direction of the 5G beam transmitted to the base station 600. FIG. Therefore, the 5G beam can be transmitted by the reflection device 320 without shading even at the positions inside, outside and outside the building.

6C is a view showing a case where the reflection device 320 is installed in a building other than the base station 600. At this time, even if an obstacle such as a tree exists between the reflection device 320 and the building in which the base station 600 is installed as shown in FIG. 6C, the obstacle can be generated by the reflection device 320 The shaded area can be removed.

Meanwhile, FIG. 6D shows an example of coverage and loss according to the shape of the reflection device 320 described in FIGS. 6A to 6C. For example, as shown in FIG. 6D, a reflective device including a reflector in the form of a conical column can secure a wider coverage L, even though it is similar in size to a reflector including a planar reflector. Further, even a reflector of the same conical column shape can have a wider coverage L as the curved surface is wider.

Having wide coverage means that the 5G beam incident in the first direction can pass through the window in a second direction of a wider range. However, as the coverage increases, the loss of the 5G beam may increase.

Therefore, considering the size of the coverage and the loss of 5G, depending on the use of the building, the size of the window, the installation location of the base station 600, the distance between the reflection device 320 and the base station 600, Various types of reflective devices may be provided.

Meanwhile, FIG. 7 is a view illustrating a reflection device implemented in a V shape according to another embodiment of the present invention. The V-shaped reflection device shown in Fig. 7 may be a reflection device in which two reflectors are attached to one edge and attached to the reflection device, or one reflector is bent to form a V shape. The V-shaped reflection device may be transparent and attached to the window.

Hereinafter, with reference to FIGS. 8A to 8C, the shape of a reflection device implemented in a V shape and the method of attaching the reflection device to a window or a window frame will be described in detail.

Although FIG. 8A specifically shows the size of the reflector 800 of the reflection device, this is only an example, and the size of the reflector 800 is not limited to that shown in FIG. 8A.

In FIG. 8A, a glass window exists in a direction indicated by an x-y plane, and a receiving terminal is present on the opposite side of the reflector 800 with respect to the xy plane. At this time, the beam transmitted by the receiving end in the direction of 10 degrees inside the windshield can be transmitted to the base station by the reflector 800, the direction of which is changed to the 80 degree direction beam. On the other hand, a beam received by the base station in the direction of 80 degrees can be transmitted to the terminal by the reflector 800 in the direction of 10 degrees.

8B is a view showing an embodiment in which the reflector 800 is attached to the glass window 830. FIG.

The reflecting device 810 including the reflector 800 may further include the fixing portion 820. The fixing portion 820 allows the reflector 800 to be fixed to the glass window 830 by a predetermined distance. The reflector 810 including the reflector 800 and the fixing portion 820 may be formed of a material that is transparent and does not reflect the beam.

8C, when the reflector 800 is formed at an angle of 100 degrees, a beam incident at ± 50 degrees in the Z direction toward the reflector 800 is transmitted through the reflector 800, Lt; RTI ID = 0.0 > 830 < / RTI >

8C, a beam having an angle of more than +/- 50 degrees in the Z direction is changed in direction so as to be directed to the inside of the glass window 830, Lt; / RTI > On the other hand, when the reflector 800 is provided, a separate apparatus can be used as shown in FIG. For example, FIG. 12 is a view showing a form in which a reflector 800 is installed using a bracket 850 according to an embodiment of the present invention. Specifically, when there is no wall surface on which a reflector for changing the direction of a beam incident on the glass window 830 can be installed, as described above, or when the reflector 800 is implemented in a planar form or a glass window 830 The bracket 850 can be used when the reflector 800 can not be attached to the glass window 830 as shown in FIG. 8D.

The bracket 850 can be fixed to a window frame portion of the glass window 830 and a portion of the wall surface on which the glass window 830 is installed, respectively. A reflector 800 may be installed on the upper end of the bracket 850 and fixed. At this time, the reflector 800 is not limited to a plan shape, a cylindrical shape, a sector shape, a V shape, and the like, as described above.

Also, the reflector 800 installed using the bracket 850 may be implemented in a variable shape as described with reference to FIGS. 10G through 10I. For example, the support may be fixed to the upper end of the bracket 850, and the reflector 800 may be attached to the support.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: base station 110:
200: 5G beam 210: any object
220: shaded area 230: reflector
235: Support portion 240: Reflective Coverage

Claims (16)

In the reflector,
A reflector that changes the direction of the beam so that a beam incident in a first direction has a second direction so that a receiver positioned away from any object can receive the beam. The method according to claim 1,
A first cell group for changing the direction of the beam in the second direction; And
A second cell group for changing the direction of the beam in a third direction; ≪ / RTI > The method according to claim 1,
Wherein the direction of the beam is changed so that the receiver positioned opposite to the base station transmitting the beam around the arbitrary object can receive the beam. The method according to claim 1,
Wherein when the arbitrary object is a material that does not transmit the beam, the reflector is located opposite to the direction in which the beam is incident corresponding to the arbitrary object. The method according to claim 1,
Wherein the reflector has a shape in which a portion of the reflector in a direction opposite to the surface contacting the fixing portion for fixing the reflector at an arbitrary position is protruded and the beam incident in the first direction is changed into a beam having a plurality of directions reflector. The method according to claim 1,
Wherein when the arbitrary object is an object of glass material and the beam incident in the first direction is a beam incident at a first angle or more in a direction perpendicular to the arbitrary object, And changes the direction of the beam to pass through the arbitrary object within two angles. The method according to claim 1,
And a plane formed by a vertex line of the Vizier and a center line of the receiver is perpendicular to the glass window when the arbitrary object is a glass window. The method according to claim 1,
Wherein the reflector is fixed to the window frame of the glass window by a fixing part capable of controlling an attachment angle of the reflector so that the second direction can be adjusted when the arbitrary object is a glass window. In the apparatus,
A reflector that changes the direction of the beam so that a beam incident in a first direction has a second direction so that a receiver positioned away from any object can receive the beam; And
A fixing unit for fixing the reflector at an arbitrary position; / RTI > 10. The method of claim 9,
The reflector
A first cell group for changing the direction of the beam in the second direction; And
A second cell group for changing the direction of the beam in a third direction; ≪ / RTI > 10. The method of claim 9,
The reflector
And changes the direction of the beam so that the receiver positioned opposite to the base station transmitting the beam around the arbitrary object can receive the beam. 10. The method of claim 9,
Wherein the reflector is located opposite to the direction in which the beam is incident corresponding to the arbitrary object when the arbitrary object is a material that does not transmit the beam. 10. The method of claim 9,
The reflector
Wherein the beam has a shape in which a part of the side opposite to the surface in contact with the fixing portion protrudes and changes the beam incident in the first direction into a beam having a plurality of directions. 10. The method of claim 9,
The reflector
Wherein when the arbitrary object is an object of glass material and the beam incident in the first direction is a beam incident at a first angle or more in a direction perpendicular to the arbitrary object, And changes the direction of the beam to pass through the arbitrary object within two angles. 10. The method of claim 9,
The reflector
Wherein a plane formed by a vertex line of the Vizier and a center line of the receiver is perpendicular to the glass window when the arbitrary object is a glass window,
Wherein the fixing portion is attached to one surface of the arbitrary object so that the reflector is fixed to the arbitrary object. 10. The method of claim 9,
The fixing unit includes:
Wherein the reflector is fixed to the window frame of the glass window when the arbitrary object is a glass window and the angle of attachment of the reflector is adjustable so that the second direction can be adjusted.

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