Electronic device

Abstract

To provide an electronic apparatus for reducing interference of a radio wave to be relayed.SOLUTION: The electronic apparatus includes a donor antenna and a service antenna, and relays radio waves by transmitting the radio waves received from the donor antenna from the service antenna. The electronic device includes a reflecting plate disposed between the electronic device and a predetermined reflecting object that at least partially reflects radio waves radiated from the donor antenna or the service antenna. The reflecting plate at least partially reflects radio waves radiated from the donor antenna or the service antenna.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to an electronic device that relays radio waves. [Background technology]

[0002] One known technology for extending the service area of ​​wireless communication is a radio wave repeater (repeater), such as a repeater. A repeater (wireless repeater) has an antenna (donor antenna) on the donor unit (DU) side that receives radio waves transmitted from a base station or the like, and an antenna (service antenna) on the service unit (SU) side that transmits the received radio waves to a terminal or the like. The repeater can, for example, amplify the radio waves received from the base station via the donor antenna and transmit them to the terminal from the service antenna.

[0003] Various technologies relating to wireless repeaters have been proposed. For example, Patent Document 1 proposes a wireless repeater that enables flexible route changes as a node in a mesh network. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7445808 Summary of the Invention [Problem to be solved by the invention]

[0005] In electronic devices that relay radio waves, such as the repeater described above, interference between radio waves transmitted and received by the electronic devices can affect the relay of radio waves. Therefore, it is desirable to reduce radio wave interference in such electronic devices that relay radio waves.

[0006] An object of the present disclosure is to provide an electronic device that reduces interference of relayed radio waves. [Means for solving the problem]

[0007] An electronic device according to an embodiment includes: a donor antenna; A service antenna, Equipped with The radio waves received from the donor antenna are transmitted from the service antenna to relay the radio waves. The electronic device includes a reflector disposed between the electronic device and a predetermined reflecting object that at least partially reflects radio waves radiated from the donor antenna or the service antenna. The reflector at least partially reflects radio waves radiated from the donor antenna or the service antenna. [Effects of the Invention]

[0008] According to one embodiment, it is possible to provide an electronic device that reduces interference of relayed radio waves. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram illustrating a schematic functional configuration of an electronic device according to an embodiment. [Figure 2] FIG. 2 is a diagram illustrating an antenna of an electronic device according to an embodiment. [Figure 3] 1 is a diagram illustrating radio waves radiated by an antenna of an electronic device according to an embodiment. [Figure 4] 10A and 10B are diagrams illustrating radio waves radiated by an antenna of a comparative example of the electronic device according to the embodiment. [Figure 5] 5 is a diagram showing the appearance of the comparative example of the electronic device shown in FIG. 4 as seen from another viewpoint. [Figure 6] 1 is a diagram illustrating an external appearance of an electronic device according to an embodiment, as viewed from above. [Figure 7] FIG. 10 is a diagram illustrating the appearance of the electronic device according to the embodiment as viewed from another viewpoint. [Figure 8A] 10A and 10B are diagrams illustrating a reflector of an electronic device according to another embodiment. [Figure 8B] 10A and 10B are diagrams illustrating a reflector of an electronic device according to another embodiment. [Figure 8C] 10A and 10B are diagrams illustrating a reflector of an electronic device according to another embodiment. [Figure 9] FIG. 10 is a diagram showing the appearance of a comparative example of an electronic device according to another embodiment, as viewed from the side. [Figure 10] FIG. 10 is a diagram illustrating the external appearance of an electronic device according to another embodiment, as viewed from the side. [Figure 11] FIG. 10 is a diagram showing the appearance of an electronic device according to another embodiment as viewed from another viewpoint. DETAILED DESCRIPTION OF THE INVENTION

[0010] In the present disclosure, an "electronic device" may refer to a device powered by electricity. In particular, in the embodiments described below, an "electronic device" may refer to a device, equipment, or equipment that relays radio waves. Furthermore, a "system" may refer to an equipment or equipment including an equipment powered by electricity. Furthermore, a "user" may refer to a person (typically a human) who uses an electronic device and / or system according to an embodiment. An electronic device and / or system according to an embodiment can reduce interference of relayed radio waves.

[0011] An electronic device according to an embodiment described below receives radio waves transmitted from, for example, a base station, and relays the radio waves by transmitting (transferring) the received radio waves to, for example, a terminal, etc. Therefore, the electronic device according to an embodiment may be implemented as, for example, a repeater, or more specifically, may be implemented as a repeater, and various implementations are possible.

[0012] 1 is a block diagram showing a schematic functional configuration of an electronic device according to an embodiment of the present invention. The functional configuration of the electronic device according to an embodiment of the present invention will be described below.

[0013] As shown in FIG. 1, an electronic device 1 according to one embodiment receives radio waves from a radio base station gNB (gNodeB) and relays the radio waves to a radio terminal UE (User Equipment) by transmitting (forwarding) the radio waves received from the radio base station gNB to the radio terminal UE.

[0014] 1, an electronic device 1 according to an embodiment may include a donor antenna 11, a service antenna 12, a donor unit (DU) 21, a service unit (SU) 22, and an amplifier 30. The electronic device 1 according to an embodiment may not include some of the functional units shown in FIG. 1, or may include functional units other than those shown in FIG. 1. Furthermore, a system according to an embodiment may be configured to include the entire electronic device 1 or at least a part of the electronic device 1.

[0015] The donor antenna 11 functions as an antenna used for communication with the radio base station gNB. The service antenna 12 has a function of communicating with a radio terminal UE or with other donor antennas. The donor antenna 11 and the service antenna 12 each transmit and receive radio waves and have a function of hopping within the communication network to connect to the next repeater (repeater, repeater). The donor antenna 11 and the service antenna 12 may have the same configuration or different configurations.

[0016] FIG. 2 is a diagram showing an example of the appearance of an antenna module such as a donor antenna 11 or a service antenna 12. As shown in FIG.

[0017] As shown in Fig. 2, the donor antenna 11 or the service antenna 12 may include, for example, a plurality of antenna elements arranged one-dimensionally or two-dimensionally. In the example shown in Fig. 2, the donor antenna 11 or the service antenna 12 is configured as a patch antenna (microstrip antenna) having a plurality of antenna elements arranged two-dimensionally in the vertical and horizontal directions. The donor antenna 11 or the service antenna 12 shown in Fig. 2 includes, as an example, six antenna elements in the horizontal direction and ten antenna elements in the vertical direction. Meanwhile, in one embodiment, the donor antenna 11 or the service antenna 12 may include any number of antenna elements depending on the desired application and / or function, etc.

[0018] The donor antenna 11 or the service antenna 12 shown in Fig. 2 shows a radiation surface of radio waves. That is, the donor antenna 11 or the service antenna 12 shown in Fig. 2 may radiate radio waves in the forward direction of Fig. 2. The donor antenna 11 or the service antenna 12 according to an embodiment may include, for example, a shielding case, as shown in the lower part of Fig. 2. In this case, the shielding case may house various electronic components, such as an IC (Integrated Circuit), inside it.

[0019] 2, a ground plate may be disposed on the surface opposite to the radiation surface of the donor antenna 11 or the service antenna 12. The surface opposite to the radiation surface of the radio waves of the donor antenna 11 or the service antenna 12 may also be referred to as the ground surface. Furthermore, the surface (ground surface) opposite to the radiation surface of the donor antenna 11 or the service antenna 12 shown in FIG. 2 may house various electronic components, such as a beamforming IC (BFIC).

[0020] An antenna such as that shown in Fig. 2 is generally called a phased array antenna module (PAAM). It is known that in such an antenna module, the greater the number of antenna elements and the larger the size of the antenna module, the narrower the width of the radiated wave (beam) and the longer the distance the radiated wave can reach. Since conventionally known antenna modules can be used for the donor antenna 11 and the service antenna 12, detailed explanations will be omitted where appropriate.

[0021] FIG. 3 is a diagram schematically illustrating a beam emitted by an antenna module such as the donor antenna 11 or the service antenna 12. FIG. 3 may be a diagram illustrating, for example, the donor antenna 11 or the service antenna 12 as viewed from above. That is, the donor antenna 11 or the service antenna 12 illustrated in FIG. 3 may radiate radio waves horizontally relative to the ground. Furthermore, the normal vector of the radiation surface of the radio waves in the donor antenna 11 or the service antenna 12 illustrated in FIG. 3 may be orthogonal to the normal vector of the ground. FIG. 3 illustrates the donor antenna 11 or the service antenna 12 with the radiation surface of the radio waves facing upward in FIG. 3. That is, the front direction in FIG. 2 may correspond to the upward direction in FIG. 3.

[0022] As shown in FIG. 3, the donor antenna 11 or the service antenna 12 radiates a main lobe ML (main beam or main radiation) in the upward direction shown in FIG. 3. The angle θ shown in FIG. 3 indicates the half-power angle at which the power of the main radiation is reduced to half (i.e., the angular width of the main radiation). In addition to the main lobe ML, the donor antenna 11 or the service antenna 12 also radiates a side lobe SL (sub-beam or sub-radiation) and a back lobe BL. As shown in FIG. 3, the side lobe SL is radiated in an oblique direction relative to the direction of the main lobe ML. Also, as shown in FIG. 3, the back lobe BL is radiated in the opposite direction to the main lobe ML.

[0023] The main lobe ML, side lobes SL, and back lobe BL shown in Fig. 3 are shown as schematic images. The sizes, numbers, directions, etc. of the main lobe ML, side lobes SL, and back lobe BL shown in Fig. 3 are not limited to the embodiment shown in Fig. 3. For example, the side lobes SL shown in Fig. 3 may be radiated in a direction, number, and / or size (length and / or width) different from the embodiment shown in Fig. 3. The donor unit (DU) 21 and the service unit (SU) 22 communicate with each other.

[0024] 1, the donor antenna 11 is connected to a donor unit (DU) 21. With this connection, the donor unit 21 can receive radio waves transmitted from a radio base station gNB via the donor antenna 11. The donor unit 21 may employ a circuit or the like having the same or similar configuration as a known donor (DU) in a known repeater or the like, and therefore a detailed description thereof will be omitted. The radio waves received by the donor unit 21 are supplied to an amplifier 30 connected to the donor unit 21.

[0025] The amplifier 30 may have a function such as amplifying the radio waves received by the donor unit 21. The amplifier 30 may have other functions in addition to or instead of the function of amplifying the radio waves received by the donor unit 21. The amplifier 30 may employ a circuit having the same or similar configuration as a known amplifier in a known repeater, and therefore a detailed description thereof will be omitted. The radio waves amplified by the amplifier 30 are supplied to a service unit (SU) 22 connected to the amplifier 30.

[0026] The service unit 22 may employ circuits or the like having the same or similar configuration as a known service (SU) in a known repeater or the like, and therefore further detailed description will be omitted. The service unit 22 transmits radio waves that have been amplified or the like from the service antenna 12 connected to the service unit 22. In this way, the service unit 22 can transmit radio waves to the wireless terminal UE via the service antenna 12.

[0027] As described above, the electronic device 1 according to an embodiment includes the donor antenna 11 and the service antenna 12. The electronic device 1 according to an embodiment relays radio waves received from the donor antenna 11 by transmitting the radio waves received from the donor antenna 11 from the service antenna 12. This allows the electronic device 1 according to an embodiment to relay radio waves received from a radio base station gNB or the like to, for example, a radio terminal UE or the like.

[0028] Next, before further explaining the electronic device 1 according to the embodiment, an electronic device according to a comparative example of the embodiment will be described.

[0029] Generally, in electronic devices that relay radio waves, such as repeaters, various numbers of donor antennas and service antennas (number of PAAMs) can be assumed. Also, various modes of arranging donor antennas and service antennas in such electronic devices can be assumed. Furthermore, miniaturization of such electronic devices is increasingly desired.

[0030] Fig. 4 is a diagram schematically illustrating the configuration of an electronic device according to a comparative example of an embodiment. Fig. 5 is a diagram illustrating the electronic device according to the comparative example of an embodiment shown in Fig. 4, viewed from a different viewpoint than that shown in Fig. 4. Fig. 5 is a diagram illustrating the electronic device 100 shown in Fig. 4, viewed from viewpoint VP1 shown in Fig. 4.

[0031] The donor antenna 11 or the service antenna 12 shown in Fig. 4 may radiate radio waves horizontally relative to the ground, similar to the situation shown in Fig. 3. That is, Fig. 4 may be a diagram showing the electronic device 100 as viewed from above, similar to Fig. 3. The Z axis shown in Fig. 4 may indicate, for example, the vertical direction. The X and Y axes shown in Fig. 4 may indicate, for example, the horizontal direction.

[0032] As shown in FIGS. 4 and 5 , the electronic device 100 is attached to a predetermined reflecting object OB1 via a support 90. The predetermined reflecting object OB1 may be, for example, a support such as a utility pole or an iron pole. Here, the predetermined reflecting object OB1 is assumed to at least partially reflect radio waves emitted from the donor antenna 11 or the service antenna 12. The predetermined reflecting object OB1 may be made of any material capable of supporting the weight of the electronic device 100, such as iron or metal. The predetermined reflecting object OB1 is not limited to the shape or size shown in FIGS. 4 and 5 , and may have various shapes or sizes, such as a rectangular pillar.

[0033] The support unit 90 has a function of supporting the electronic device 100 and thereby attaching the electronic device 100 to a predetermined reflective object OB1. In the example shown in FIGS. 4 and 5, the support unit 90 is attached to a predetermined reflective object OB1, and the electronic device 100 is attached to the support unit 90. The support unit 90 may be made of any material that can withstand the weight of the electronic device 100, such as concrete, resin, or metal. The support unit 90 is not limited to the shape or size shown in FIGS. 4 and 5, and may have various shapes or sizes.

[0034] 4 , a case is assumed in which one donor antenna 11 and one service antenna 12 are disposed in the core case 40. In this manner, in one embodiment, the donor antenna 11 and the service antenna 12 may be disposed in the core case 40. The core case 40 may be configured to include, for example, at least a portion of a metal, but may also be configured of any material to which the donor antenna 11 and the service antenna 12 can be fixed.

[0035] 4, the donor antenna 11 and the service antenna 12 are arranged in the core case 40. The donor antenna 11 and the service antenna 12 are arranged on either side of a corner of the core case 40. In this manner, the donor antenna 11 and the service antenna 12 may be arranged close to each other.

[0036] 4, the donor antenna 11 is disposed in the core case 40 so that the direction of its main lobe ML1 is approximately parallel to the positive direction of the Y axis. The service antenna 12 is disposed in the core case 40 so that the direction of its main lobe ML2 is approximately parallel to the positive direction of the X axis.

[0037] As described above, the donor antenna 11 radiates not only the main lobe ML1 but also the side lobes SL1L and SL1R and the back lobe BL1. Similarly, the service antenna 12 radiates not only the main lobe ML2 but also the side lobes SL2L and SL2R and the back lobe BL2.

[0038] When the donor antenna 11, the service antenna 12, and a predetermined reflecting object OB1 are arranged as shown in FIG. 4 , interference may occur between, for example, a side lobe SL1R of the donor antenna 11 and a side lobe SL2L of the service antenna 12. Furthermore, in such a configuration, interference may occur between a main lobe ML1 of the donor antenna 11 and a main lobe ML2 of the service antenna 12. For example, it is assumed that at least a portion of the radio waves radiated from the service antenna 12 will be reflected by a predetermined reflecting object OB1 and then enter the donor antenna 11. In the arrangements shown in FIGS. 4 and 5 , it is assumed that a portion of the radio waves radiated from the service antenna 12 will be deflected into the donor antenna 11. If radio wave deflection occurs during the transmission and reception of radio waves relayed by the electronic device 100, this may affect the relay of the radio waves by the electronic device 100. It is desirable to minimize radio wave interference in such electronic devices that relay radio waves.

[0039] The electronic device 100 shown in FIG. 4 may be at least partially covered with a housing such as an outer case, for example, from the standpoint of protecting the donor antenna 11 and / or the service antenna 12 and making it waterproof (or drip-proof).

[0040] In this case, the outer case may at least partially cover the periphery of the electronic device 100 shown in Figures 4 and 5. The outer case may at least partially cover the core case 40. The outer case may also at least partially cover at least one of the donor antenna 11 and the service antenna 12.

[0041] The outer case may also include a radome (antenna cover) at a location where radio waves are transmitted and received by the donor antenna 11 and / or the service antenna 12. In this way, the outer case may at least partially include a radome at a location that covers the donor antenna 11 or the service antenna 12. The radome may be configured to at least partially include a material that has high radio wave transmittance, such as glass fiber or a foaming agent.

[0042] The applicant has confirmed through simulations and experiments that in electronic device 100 configured as shown in Figures 4 and 5, radio waves radiated from service antenna 12 are partially deflected to donor antenna 11. In other words, electronic device 100 configured as shown in Figures 4 and 5 may affect the relay of radio waves.

[0043] Simulations and experiments have confirmed that in electronic device 100, at least a portion of the radio waves emitted from one of donor antenna 11 and / or service antenna 12 is reflected by a predetermined reflecting object OB1 and guided to the other. In electronic device 100, it has been confirmed that the radio waves emitted from service antenna 12 are reflected by an iron or metal reflecting object OB1 and enter donor antenna 11. For example, it has been confirmed that when the distance between electronic device 100 and reflecting object OB1 is about 0.5 m, the radio waves are degraded by about 30 dB. Furthermore, it has been confirmed that when the distance between electronic device 100 and reflecting object OB1 is about 3.0 m, the radio waves are degraded by about 15 dB.

[0044] It is desirable to minimize the radio wave interference that occurs in the electronic device 100 shown in Figures 4 and 5. Therefore, an electronic device according to an embodiment described below reduces the occurrence of radio wave interference by adding a predetermined component.

[0045] Fig. 6 is a diagram schematically showing the configuration of an electronic device according to an embodiment. Fig. 7 is a diagram showing the electronic device according to an embodiment shown in Fig. 4 as viewed from a different viewpoint than that shown in Fig. 6. Fig. 7 is a diagram showing the electronic device 1 shown in Fig. 6 as viewed from viewpoint VP1 shown in Fig. 6.

[0046] Hereinafter, an electronic device according to an embodiment shown in Figures 6 and 7 will be described based on the electronic device 100 described in Figures 4 and 5. In particular, the description will focus on features of the electronic device according to an embodiment shown in Figures 6 and 7 that are different from the electronic device 100 shown in Figures 4 and 5. In the electronic device 1 according to an embodiment shown in Figures 6 and 7, descriptions that are similar to those of the electronic device 100 shown in Figures 4 and 5 will be appropriately simplified or omitted.

[0047] As shown in FIGS. 6 and 7 , the electronic device 1 according to an embodiment includes a reflector 50 between the electronic device 100 described with reference to FIGS. 4 and 5 and the predetermined reflecting object OB1. The reflector 50 may be disposed between the electronic device 1 and the predetermined reflecting object OB1. The reflector 50 may be made of, for example, iron or metal. The reflector 50 at least partially reflects radio waves emitted from the donor antenna 11 or the service antenna 12. By disposing the reflector 50, at least a portion of the radio waves emitted from one of the donor antenna 11 and / or the service antenna 12 is reflected by the reflector 50 before reaching the predetermined reflecting object OB1 and is not guided to the other antenna. Therefore, for example, among the radio waves emitted from the service antenna 12, the amount of radio waves reflected by the predetermined reflecting object OB1 and entering the donor antenna 11 is reduced. Therefore, the electronic device 1 according to an embodiment can reduce interference of the radio waves being relayed.

[0048] The applicant has confirmed through simulations and experiments that in the electronic device 1 configured as shown in Figures 6 and 7, the phenomenon in which radio waves radiated from the service antenna 12 are partially deflected to the donor antenna 11 can be reduced. For example, it was confirmed that when the distance between the electronic device 1 and the reflecting object OB1 is about 0.5 m, the degradation of radio waves is limited to about 5 dB.

[0049] The reflector 50 shown in FIGS. 6 and 7 may be attached to, for example, the electronic device 1, or to a support 90 that supports the electronic device 1, or to a reflecting object OB1.

[0050] 6 and 7, the reflector 50 may be arranged closer to the reflecting object OB1 than to the electronic device 1. Such an arrangement has the effect of further reducing interference of radio waves caused by the reflecting object OB1.

[0051] 6 and 7, the reflector 50 may be configured to have a width sufficient to cover the reflecting object OB1. For example, if the reflecting object OB1 is a cylinder, the reflector 50 may be configured to have a width greater than the diameter of the cylinder. Such a reflector 50 can further reduce interference of radio waves caused by the reflecting object OB1. On the other hand, the reflector 50 may be configured to have a width sufficient to cover at least a portion of the reflecting object OB1. Such a reflector 50 also contributes to reducing interference of radio waves caused by the reflecting object OB1.

[0052] Furthermore, a radio wave absorber may be disposed on the reflecting surface of the reflector 50. Such a reflector 50 can absorb and / or reflect radio waves. In this case, the radio wave absorber may be disposed so as to cover the entire reflecting surface of the reflector 50, or may be disposed so as to cover at least a portion of the reflecting surface of the reflector 50.

[0053] Furthermore, if the radio waves reflected by the reflector 50 return to the electronic device 1, the effect of the reflector 50 in reducing radio wave interference may be limited. Therefore, the reflector 50 may be arranged so that the radio waves reflected by the reflector 50 are directed in a direction different from that of the electronic device 1. For example, the reflector 50 may be arranged so that the normal vector of the reflecting surface of the reflector 50 is not parallel to the vector directed from the reflecting object OB1 toward the electronic device 1 (donor antenna 11 or service antenna 12).

[0054] The reflector 50 shown in Figures 6 and 7 has a mountain-folded, planar shape. However, in one embodiment, the shape of the reflector 50 is not limited to the shapes shown in Figures 6 and 7. For example, the reflector 50 may have a shape based on a flat plate-like shape, such as the reflector 50A shown in Figure 8A. For example, the reflector 50 may have a shape based on the side of a pyramid, such as a quadrangular pyramid or a triangular pyramid, such as the reflector 50B shown in Figure 8B. Furthermore, the reflector 50 may have a shape based on the side of a cone, such as the reflector 50C shown in Figure 8C. Furthermore, the reflector 50 may have a valley-folded, planar shape.

[0055] 6 and 7, the electronic device 1 according to an embodiment may include, for example, an outer case and / or a radome. This can be expected to provide protection, dustproofing, and / or drip-proofing for the donor antenna 11 and / or the service antenna 12.

[0056] As described above, the electronic device 1 according to one embodiment may include the donor antenna 11 and the service antenna 12. The electronic device 1 can relay radio waves received from the donor antenna 11 by transmitting the radio waves received from the donor antenna 11 from the service antenna 12. The electronic device 1 according to one embodiment includes a reflector 50 disposed between the electronic device 1 and a predetermined reflecting object OB1. Here, the predetermined reflecting object OB1 at least partially reflects radio waves radiated from the donor antenna 11 or the service antenna 12. The reflector 50 also at least partially reflects radio waves radiated from the donor antenna 11 or the service antenna 12.

[0057] In one embodiment, the reflective surface of the reflector 50 may be at least partially composed of metal. In one embodiment, the reflective surface of the reflector 50 may be at least partially composed of a radio wave absorber. Furthermore, in one embodiment, the reflector 50 may be disposed so that the normal to the reflective surface of the reflector 50 is not parallel to the direction from the predetermined reflecting object OB1 toward the electronic device 1. Furthermore, in one embodiment, the reflector 50 may have a shape based on at least one of a plate-like plane, a mountain-folded or valley-folded plane, a pyramidal side surface, or a conical side surface. Furthermore, in one embodiment, the reflector 50 may have a size that covers the width of the predetermined reflecting object OB1 in one direction.

[0058] In one embodiment, the reflector 50 may be attached to a predetermined reflecting object OB1. Also, in one embodiment, the reflector 50 may be attached to a support 90 that supports the electronic device 1. Furthermore, in one embodiment, the reflector 50 may be arranged closer to the predetermined reflecting object OB1 than the electronic device 1.

[0059] According to the electronic device 1 of the embodiment, the amount of radio waves radiated from the service antenna 12 that are reflected by a predetermined reflecting object OB1 and enter the donor antenna 11 is reduced. Therefore, according to the electronic device 1 of the embodiment, it is possible to reduce interference of the relayed radio waves.

[0060] Although the embodiments according to the present disclosure have been described based on the drawings and examples, it should be noted that those skilled in the art would easily be able to make various modifications or alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included within the scope of the present disclosure. For example, the functions included in each component or step can be rearranged so as not to be logically inconsistent, and multiple components or steps can be combined or divided into one.

[0061] In the electronic device 1 described above, consideration has been given to the reflection of radio waves in the horizontal direction (i.e., the XY plane) shown in Fig. 6. However, in one embodiment, consideration may also be given to the reflection of radio waves in the vertical direction (i.e., the Z axis) shown in Fig. 6. Radio waves emitted from the donor antenna 11 or the service antenna 12 have a spread not only in the horizontal direction but also in the vertical direction.

[0062] For example, the core case 40 of the electronic device 200 shown in FIG. 9 has the same configuration as the core case 40 of the electronic device 100 shown in FIG. 4 when viewed from the reflecting object OB1 toward the electronic device 100. The donor antenna 11 and the service antenna 12 are arranged in the core case 40 of the electronic device 200 shown in FIG. 9. On the other hand, the core case 40 of the electronic device 200 shown in FIG. 9 is installed in a manner different from that of the electronic device 100 shown in FIGS. 4 and 5. The core case 40 of the electronic device 200 shown in FIG. 9 is installed above a predetermined reflecting object OB2 (positive direction of the Z axis) via a support part 92. That is, in FIG. 9, the support part 92 is installed above the predetermined reflecting object OB2, and the core case 40 of the electronic device 200 is arranged above the support part 92. In FIG. 9, the support part 92 supports the core case 40 of the electronic device 200 in the vertical direction.

[0063] 9, for example, the upper surface TS of the reflecting object OB2 has a relatively large area. Furthermore, (the upper surface TS of) the reflecting object OB2 at least partially reflects radio waves emitted from the donor antenna 11 or the service antenna 12 (it is configured to include at least a radio wave absorber in part). In such a case, it is expected that at least a portion of the radio waves emitted from, for example, the service antenna 12 will enter the donor antenna 11 after being reflected by the upper surface TS of the reflecting object OB2. Therefore, radio wave interference may occur even in the electronic device 200 shown in FIG.

[0064] Fig. 10 is a diagram schematically showing the configuration of an electronic device according to an embodiment. Fig. 11 is a diagram showing the electronic device according to the embodiment shown in Fig. 10 as viewed from a different viewpoint than that shown in Fig. 10. Fig. 11 is a diagram showing the electronic device 2 shown in Fig. 10 as viewed from viewpoint VP2 shown in Fig. 10.

[0065] 10 and 11, the electronic device 2 according to an embodiment includes a reflector 50A disposed between the electronic device 2 and a reflecting object OB2. The reflector 50A at least partially reflects radio waves emitted from the donor antenna 11 or the service antenna 12. With this configuration, the electronic device 2 according to an embodiment can reduce interference of the radio waves to be relayed.

[0066] The above-described electronic devices 1 and 2 have been described as including one donor and one service, respectively. However, in an electronic device according to an embodiment, the number of donors and / or services is not limited to one donor and one service. In an electronic device according to an embodiment, the number of donors and / or services may be two or more. For example, an electronic device according to an embodiment may have a housing shaped like a rectangular prism, and a PAAM may be arranged on each of the four side surfaces of the rectangular prism. In this case, one of the four PAAMs may be configured as the donor antenna 11, and the remaining three may be configured as service antennas 12. Furthermore, in an electronic device according to an embodiment, instead of arranging a PAAM on each of the four side surfaces of a housing shaped like a rectangular prism, multiple PAAMs may be arranged on the side surfaces of a housing shaped like a cylinder, for example.

[0067] The above-described embodiment is not limited to being implemented only as the electronic device 1, etc. For example, the above-described embodiment may be implemented as a system including the electronic device 1, etc. [Explanation of symbols]

[0068] 1,2 Electronic equipment 11 Donor Antenna 12 Service Antenna 21 Donor Unit (DU) 22 Service Unit (SU) 30 Amplifier 40 Core Case 50,50A,50B,50C Reflector 90,92 Support part

Claims

1. a donor antenna; A service antenna, Equipped with An electronic device that relays radio waves by transmitting the radio waves received from the donor antenna from the service antenna, a reflector disposed between the electronic device and a predetermined reflecting object that at least partially reflects radio waves radiated from the donor antenna or the service antenna; The reflector at least partially reflects radio waves radiated from the donor antenna or the service antenna.

2. The electronic device according to claim 1 , wherein the reflecting surface of the reflector is at least partially made of metal.

3. The electronic device according to claim 1 , wherein the reflector is disposed so that a normal to a reflective surface of the reflector is not parallel to a direction from the predetermined reflective object toward the electronic device.

4. The electronic device according to claim 1 , wherein the reflector has a shape based on at least one of a flat plate, a mountain-folded or valley-folded flat plate, a pyramidal side surface, and a conical side surface.

5. The electronic device according to claim 1 , wherein the reflector has a size sufficient to cover a width in one direction of the predetermined reflecting object.

6. The electronic device according to claim 1 , wherein the reflector is disposed closer to the predetermined reflective object than the electronic device.

7. The electronic device according to claim 1 , wherein the reflector is attached to the predetermined reflective object.

8. The electronic device according to claim 1 , wherein the reflector is attached to a support that supports the electronic device.

9. The electronic device according to claim 1 , wherein the reflector is attached to a support positioned between the electronic device and the predetermined reflective object.

10. 9. The electronic device according to claim 1, wherein the reflecting surface of the reflector is at least partially configured to include a radio wave absorber.

Images