Communication device and communication method therefor

Abstract

The present disclosure relates to the technical field of communications, and provides a communication device and a communication method. The communication device of the present disclosure comprises an antenna module, a determination module and a signal conversion module, wherein the antenna module comprises a bearing structure and a plurality of antenna units installed on the outer wall of the bearing structure, and the beamwidth formed by the plurality of antenna units covers a target angle range; the determination module is configured to determine, on the basis of signal strength information of a base station signal received by each antenna unit, an antenna unit to be communicatively connected to the signal conversion module; and the signal conversion module is configured to perform signal conversion on a received signal for access by a user terminal.

Description

Communication device and communication method thereof TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of communication, and particularly relates to a communication device and a communication method thereof. BACKGROUND

[0002] In recent years, China's new information infrastructure construction at sea is in full swing. With the advent of the 5th Generation Mobile Communication Technology (5G) era, the marine economy is ushering in new opportunities for scale development. Through accelerating 5G coverage in the open sea, basic telecom enterprises will extend 5G to the ocean and integrate it into the construction of "smart ocean", and continue to accelerate the construction of 700MHz frequency band 5G networks.

[0003] Traditional sea area communication is mainly divided into two types. One is to rely on satellite transmission, which requires professional equipment and is very expensive, making it difficult to meet the needs of ordinary customers. The other is to rely on the 4th Generation Mobile Communication Technology (4G) network already covered in coastal areas, but the coverage distance is short and cannot meet the needs of customers at sea. A relatively innovative solution is to use a 700MHz coastal base station super-coverage to cooperate with a ferry cabin repeater station to enhance the coverage range, but because an omnidirectional antenna is used, the radiation efficiency is low, and the size is large, which is not convenient to install. At the same time, the repeater station is a relay and amplification of wireless information, and the terminal must have a 5G module, which has high requirements for user equipment, and in the case of many ships, it is easy to produce self-excitation, which seriously affects the Internet experience.

[0004] SUMMARY

[0005] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a communication device and a communication method thereof.

[0006] The present disclosure provides a communication device, which comprises an antenna module, a determination module and a signal conversion module; wherein,

[0007] The antenna module comprises a bearing structure and a plurality of antenna units installed on the outer wall of the bearing structure, and the lobe width formed by the plurality of antenna units covers a target angle range;

[0008] The determination module is configured to determine the antenna unit to be connected in communication with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit;

[0009] The signal conversion module is configured to convert the received signals for the user terminal to access.

[0010] The plurality of signal couplers are connected with the antenna units one by one, configured to couple part of the signals received by the antenna units connected therewith to the signal detection units, and transmit another part to the first selection unit.

[0011] The signal detection units are configured to detect the received signals to obtain the signal strength information of the base station signals.

[0012] The control units are configured to generate corresponding control signals according to the signal strength information of the base station signals detected by each of the signal detection units, and send the control signals to the first selection unit.

[0013] The first selection unit is configured to determine the antenna units to be connected with the signal conversion module according to the control signals, and connect the antenna units with the signal conversion module.

[0014] The determination module includes a plurality of signal coupling units, a plurality of signal preprocessing units connected with the signal coupling units, a signal strength reading unit, a first selection unit, a control unit, and a second selection unit.

[0015] The plurality of signal couplers are connected with the antenna units one by one, configured to couple part of the signals received by the antenna units connected therewith to the signal detection units, and transmit another part to the first selection unit.

[0016] The signal preprocessing units are configured to preprocess the received signals.

[0017] The second selection unit is configured to alternately select the connection of the signal preprocessing units and the signal strength reading units under the control of the control unit.

[0018] The signal strength reading unit is configured to read the signals output by the second selection unit under the control of the control unit, and determine the signal strength information of the base station signals received by the antenna units.

[0019] The control units are configured to generate corresponding control signals according to the signal strength information of the base station signals read by each of the signal strength reading modules, and send the control signals to the first selection unit.

[0020] The first selection unit is configured to determine the antenna unit to be connected with the signal conversion module according to the control signal, and connect the antenna unit with the signal conversion module.

[0021] The signal strength information at least includes signal receiving power.

[0022] The antenna unit includes a first dipole and a second dipole, and the working frequency of the first dipole is less than the working frequency of the second dipole.

[0023] The first dipole and the second dipole in the antenna unit are arranged side by side, and the height of the first dipole along the direction away from the bearing structure is greater than the height of the second dipole along the direction away from the bearing structure.

[0024] The first dipole and the second dipole in the antenna unit are arranged side by side, and the second dipole is located between the two first dipoles.

[0025] When the number of the second dipoles is multiple, the antenna unit further includes a first isolation component arranged on the bearing structure and corresponding to the second dipole, and the orthographic projection of the second dipole on the bearing structure is located in the area defined by the orthographic projection of the first isolation component on the bearing structure.

[0026] The first dipole includes a first reference electrode, a first radiation structure and a first transmission line.

[0027] The first reference electrode is arranged on the bearing structure, the first reference electrode has a first hollow part, the first radiation structure is arranged on the bearing structure through the first hollow part, and the first transmission line is connected with the first radiation structure.

[0028] The first radiation structure includes a first radiation electrode, a second radiation electrode, a first connection electrode and a first support component.

[0029] The first support component includes a first support part and a second support part arranged side by side, and a first connection part connecting the first support part and the second support part; the first connection part is arranged on the bearing structure and located in the first hollow part, one end of the first support part is connected with the first connection part, and the other end is connected with the first radiation electrode, one end of the second support part is connected with the first connection part, and the other end is connected with the second radiation electrode.

[0030] The first transmission line is connected with the first radiation electrode, and connected with the first connection electrode through a first via hole penetrating the first radiation electrode, and the first connection electrode is connected with the second radiation electrode.

[0031] The first radiating electrode comprises a first main body part and a first fixing part connected with the first main body part; the second radiating electrode comprises a second main body part and a second fixing part connected with the second main body part; the first main body part has a first opening, and the second main body part has a second opening.

[0032] The first transmission line is connected with the first fixing part and connected with the first connecting electrode through a first via hole penetrating through the first fixing part, and the first connecting electrode is connected with the second fixing part.

[0033] The outer contour of the first main body part and the second main body part each comprises a plurality of sides, and the inner angle formed by any two adjacent sides of the outer contour of the first main body part is obtuse; the inner angle formed by any two adjacent sides of the outer contour of the second main body part is obtuse.

[0034] The first opening has the same shape as the outer contour of the first main body part; and the second opening has the same shape as the outer contour of the second main body part.

[0035] The second vibrator comprises a second reference electrode, a second radiating structure and a second transmission line.

[0036] The second reference electrode is arranged on the bearing structure, the second reference electrode has a second hollow part, the second radiating structure is arranged on the bearing structure through the second hollow part; and the second transmission line is connected with the second radiating structure.

[0037] The second radiating structure comprises a third radiating electrode, a fourth radiating electrode, a second connecting electrode and a second support assembly.

[0038] The second support assembly comprises a third support part and a fourth support part arranged side by side, and a second connecting part connecting the third support part and the fourth support part; the second connecting part is arranged on the bearing structure and located in the second hollow part, one end of the third support part is connected with the second connecting part, and the other end is connected with the third radiating electrode, one end of the fourth support part is connected with the second connecting part, and the other end is connected with the fourth radiating electrode.

[0039] The second transmission line is connected with the third radiating electrode and connected with the second connecting electrode through a second via hole penetrating through the third radiating electrode, and the second connecting electrode is connected with the fourth radiating electrode.

[0040] The third radiating electrode and the fourth radiating electrode each comprise a first side and a second side arranged opposite to each other, a third side and a fourth side arranged opposite to each other, and a first connecting side and a second connecting side.

[0041] For the third radiating electrode, two ends of the first side are connected to the third side and the fourth side respectively, one end of the second side is connected to the third side through the first connecting side, and the other end of the second side is connected to the fourth side through the second connecting side; the two inner angles formed by the first connecting side and the third side and the second side are obtuse angles respectively.

[0042] For the fourth radiating electrode, the first side is adjacent to the first side of the third radiating electrode; two ends of the first side are connected to the third side and the fourth side respectively, one end of the second side is connected to the third side through the first connecting side, and the other end of the second side is connected to the fourth side through the second connecting side; the two inner angles formed by the first connecting side and the third side and the second side are obtuse angles respectively.

[0043] The bearing structure is a hollow structure, which comprises a plurality of bearing parts connected in sequence, and one of the bearing parts is provided with one of the antenna units.

[0044] Any two bearing parts connected to each other are provided with a second isolation component, and two adjacent second isolation components are provided with one antenna unit.

[0045] The antenna module further comprises a feed network connected to the first transmission line and the second transmission line in each antenna unit; the feed network is arranged in the hollow cavity of the bearing structure.

[0046] The communication device further comprises a base and an antenna cover; the bearing structure is mounted on the base, the antenna cover is arranged outside the bearing structure and fixed to the base, and the antenna unit is limited in the antenna cover.

[0047] A sealing ring is arranged between the antenna cover and the base.

[0048] The embodiments of the present disclosure provide a communication method applied to any of the above communication devices; the communication method comprises:

[0049] The determination module determines the antenna unit to be connected to the signal conversion module according to the signal strength information of the base station signal received by each antenna unit;

[0050] The signal conversion module converts the signal received by it for user terminal access.

[0051] The step of determining the antenna unit to be connected with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit by the determining module comprises:

[0052] Part of the signal received by the antenna unit connected with the signal coupler is coupled to the signal detection unit, and the other part is transmitted to the first selection unit;

[0053] The signal detection unit detects the received signal to obtain the signal strength information of the base station signal;

[0054] The control unit generates a corresponding control signal according to the signal strength information of the base station signal detected by each signal detection unit received thereby, and sends the control signal to the first selection unit;

[0055] The first selection unit determines the antenna unit to be connected with the signal conversion module according to the control signal, and connects the antenna unit with the signal conversion module.

[0056] The step of determining the antenna unit to be connected with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit by the determining module comprises:

[0057] Part of the signal received by the antenna unit connected with the signal coupler is coupled to the signal detection unit, and the other part is transmitted to the first selection unit;

[0058] The signal pre-processing module pre-processes the received signal;

[0059] The control unit controls the second selection unit to alternately connect the signal pre-processing unit and the signal strength reading unit, reads the signal output by the second selection unit through the signal strength reading unit, and determines the signal strength information of the base station signal received by the antenna unit;

[0060] The control unit generates a corresponding control signal according to the signal strength information of the base station signal read by each signal strength reading module received thereby, and sends the control signal to the first selection unit;

[0061] The first selection unit determines the antenna unit to be connected with the signal conversion module according to the control signal, and connects the antenna unit with the signal conversion module. BRIEF DESCRIPTION OF DRAWINGS

[0062] FIG. 1 is a structural block diagram of a communication device according to an embodiment of the present disclosure.

[0063] Figure 2 is a block diagram of a 5G CPE module according to an embodiment of the present disclosure.

[0064] Figure 3 is a block diagram of a first example of a tracking station module according to an embodiment of the present disclosure.

[0065] Figure 4 is a block diagram of a second example of a tracking station module according to an embodiment of the present disclosure.

[0066] Figure 5 is an exploded view of a communication device according to an embodiment of the present disclosure.

[0067] Figure 6 is a perspective view of an antenna unit according to an embodiment of the present disclosure.

[0068] Figure 7 is a perspective view of a low-frequency vibrator according to an embodiment of the present disclosure.

[0069] Figure 8 is a front view of a low-frequency vibrator according to an embodiment of the present disclosure.

[0070] Figure 9 is a top view of a first reference electrode of a low-frequency vibrator according to an embodiment of the present disclosure.

[0071] Figure 10 is a perspective view of a high-frequency vibrator according to an embodiment of the present disclosure.

[0072] Figure 11 is a front view of a high-frequency vibrator according to an embodiment of the present disclosure.

[0073] Figure 12 is a top view of a second reference electrode of a high-frequency vibrator according to an embodiment of the present disclosure.

[0074] Figure 13 is a horizontal directional diagram of a low-frequency vibrator according to an embodiment of the present disclosure.

[0075] Figure 14 is a horizontal directional diagram of a high-frequency vibrator according to an embodiment of the present disclosure.

[0076] Figure 15 is a directional diagram of an antenna module at a low frequency of 700 MHz according to an embodiment of the present disclosure.

[0077] Figure 16 is a directional diagram of an antenna module at a high frequency of 2.6 GHz according to an embodiment of the present disclosure.

[0078] Figure 17 is an exploded view of a communication device according to an embodiment of the present disclosure.

[0079] Figure 18 is an assembled view of a communication device according to an embodiment of the present disclosure.

[0080] Figure 19 is a flowchart of a communication method according to an embodiment of the present disclosure.

[0081] Figure 20 is a specific flowchart of step S1 of a communication method according to an embodiment of the present disclosure.

[0082] Figure 21 is another specific flowchart of step S1 of a communication method according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0083] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0084] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms "one", "a", or "the" and similar terms do not denote a quantity restriction, but mean that at least one exists. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are used only to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.

[0085] Before the embodiments of the present disclosure are described, it should be noted that the communication device in the embodiments of the present disclosure is mainly applied to signal coverage in sea areas to provide good online experience for users on ferry cabins. Of course, the communication device in the embodiments of the present disclosure can also be applied to areas where 5G signal coverage is weak, such as deep mountains, and the like, which are not listed one by one here. In the embodiments of the present disclosure, only the application of the communication device to the sea for signal coverage is taken as an example. The determination module in the embodiments of the present disclosure can be a tracking station module, and the signal conversion module is mainly used for conversion of 5G signals, so a 5G CPE module can be used. In the following examples of the present disclosure, only the determination module is taken as a tracking station module, and the signal conversion module is taken as a 5G CPE module as an example.

[0086] FIG. 1 is a structural block diagram of a communication device according to an embodiment of the present disclosure; as shown in FIG. 1, the present disclosure provides a communication device, which includes an antenna module 1, a tracking station module 2, and a 5G CPE module 3; wherein the antenna module 1 includes a bearing structure, and a plurality of antenna units 11 mounted on the outer wall of the bearing structure, and the lobe width formed by the plurality of antenna units 11 covers a target angle range. The tracking station module 2 is configured to determine the antenna unit 11 to be communicatively connected with the 5G CPE module 3 according to the signal strength information of the base station signals received by each antenna unit 11. The 5G CPE module 3 is configured to perform signal conversion on the signals received thereby for user terminal access.

[0087] In some examples, the target angle range is 360°, that is, the antenna module 1 in the embodiment of the present disclosure is an omnidirectional antenna device. In this case, each antenna unit 11 in the antenna module 1 covers a certain angle range, for example, the antenna module 1 uses a multi-sector directional antenna to achieve the effect of omnidirectional coverage. In the embodiment of the present disclosure, the antenna module 1 is set to use 6 sectors (that is, 1, 2, 3, 4, 5, and 6 in FIG. 1), that is, it includes 6 antenna units 11.

[0088] Since each antenna unit 11 in the antenna module 1 is distributed in different sectors, the position of each antenna unit 11 relative to the base station is different, and therefore the strength of the base station signal received by each antenna unit 11 is also different. In the embodiment of the present disclosure, the tracking module 2 determines the antenna unit 11 to be communicatively connected to the 5G CPE module 3 according to the strength of the base station signal received by each antenna unit 11, and controls the antenna unit 11 to communicate with the 5G CPE module 3, and the 5G CPE module 3 converts the signal received thereby for access by a user terminal. Through the communication device, a user can be provided with high-quality 5G network, improving the user's online experience.

[0089] In some examples, the signal strength of the base station signal in the embodiment of the present disclosure can be the power strength of the base station signal.

[0090] In some examples, the 5G CPE module 3 can convert the received base station signal into a WiFi signal for access by a user terminal device. Of course, the 5G CPE module 3 can reserve a LAN port, and a user can extend through a wireless routing AP.

[0091] Specifically, FIG. 2 is a block diagram of the 5G CPE module 3, as shown in FIG. 2, which includes a first radio frequency front end, a 5G chip, a processor, a WiFi chip, and a second radio frequency front end. The first radio frequency front end is used to amplify, filter, and perform other preprocessing on the received base station signal, the 5G chip digitizes and modulates / demodulates the signal received thereby, the processor loads an operating system and schedules and manages data resources according to a 5G protocol stack and a WiFi protocol stack, converts the 5G signal into a WiFi signal, the WiFi chip digitizes and modulates / demodulates the WiFi signal, and outputs the WiFi signal to the second radio frequency front end, which amplifies and filters the WiFi signal and then transmits the WiFi signal for access by a user terminal device.

[0092] In the embodiment of the present disclosure, the following two specific structures of the tracking module 2 are given, and the two tracking modules 2 will be described in detail.

[0093] The first example is shown in FIG. 3, which is a block diagram of the first example of the tracking station module 2 according to the embodiments of the present disclosure. As shown in FIG. 3, the tracking station module 2 includes a plurality of signal coupling units 21, a plurality of signal detection units 22 connected with the signal coupling units 21, a control unit 23, and a first selection unit 24. The plurality of signal coupling units 21 can be connected with the plurality of antenna units 11 one by one, and each signal coupling unit 21 is connected with the first selection unit 24. The plurality of signal detection units 22 are connected with the plurality of signal coupling units 21 one by one, and each signal detection unit 22 is connected with the control unit 23. The control unit 23 is connected with the first selection unit 24. In this case, each antenna unit 11, the corresponding signal coupling unit 21, and the signal detection unit 22 form a transmission link of the base station signal.

[0094] Specifically, the signal coupling unit 21 is configured to couple a part of the base station signal received by the antenna unit 11 connected therewith to the signal detection unit 22, and transmit another part to the first selection unit 24. It should be noted that because the signal detection unit 22 is only used to analyze the strength of the base station signal, and does not need to use this part of the signal as the radiation signal, the base station signal coupled to the signal detection unit 22 is much less than the base station signal transmitted to the first selection unit 24.

[0095] The signal detection unit 22 is configured to analyze the base station signal received thereby to determine the signal strength of the base station signal received by the antenna unit 11 corresponding thereto. The signal strength includes but is not limited to the power strength. Specifically, the signal detection unit 22 is configured to detect the received base station signal. The signal detection unit 22 includes signal preprocessing, a radio frequency power detector TruPwr, and an analog-to-digital converter ADC. The signal preprocessing performs filtering, amplification, and the like. The power detector is based on a diode square law detector. The carrier voltage power can be obtained after band-pass filtering. After sampling by the ADC, the signal is input to the control unit for judgment and processing.

[0096] The control unit 23 is configured to determine the antenna unit 11 to be communicated with the 5G CPE module 3 according to the signal strength of the base station signal received by each antenna unit 11 determined by each signal detection unit 22, and generate a corresponding control signal to be sent to the antenna selection unit. For example, the antenna unit 11 receiving the base station signal with the maximum signal strength is determined as the antenna unit 11 to be communicated with the 5G CPE module 3.

[0097] The first selection unit 24 is configured to transmit the base station signal received by the corresponding antenna unit 11 to the 5G CPE module 3 according to the control signal sent by the control unit 23.

[0098] The second example is shown in FIG. 4, which is a block diagram of the second example of the tracking station module 2 according to the embodiments of the present disclosure. As shown in FIG. 4, in this example, the tracking station module 2 includes a plurality of signal coupling units 21, a plurality of signal preprocessing units 25 connected to the signal coupling units 21, a signal strength reading unit 27, a control unit 23, a first selection unit 24, and a second selection unit 26. The plurality of signal coupling units 21 can be connected to the plurality of antenna units 11 one by one, and each signal coupling unit 21 is connected to a signal preprocessing unit 25 one by one. Each signal preprocessing unit 25 is connected to the second selection unit 26. The second selection unit 26 is connected to the control unit 23 and the signal strength reading unit 27. The signal strength reading unit 27 is also connected to the control unit 23. The control unit 23 is also connected to the first selection unit 24. In this case, each antenna unit 11, the corresponding signal coupling unit 21, and the signal preprocessing unit 25 form a transmission link of the base station signal.

[0099] Specifically, the signal coupling unit 21 is configured to couple a part of the base station signal received by the antenna unit 11 connected thereto to the signal preprocessing unit 25, and transmit another part to the first selection unit 24. It should be noted that because the signal preprocessing unit 25 is only used to preprocess the base station signal for the signal strength reading module to read the signal strength of the base station signal, and does not need to transmit this part of the signal as a radiation signal, the base station signal coupled to the signal preprocessing unit 25 is much less than the base station signal transmitted to the first selection unit 24.

[0100] The signal detection unit 22 is configured to preprocess the base station signal received thereby so that the signal strength information of the base station signal can be read by the signal strength reading module. The signal strength includes but is not limited to the power strength. Specifically, the signal preprocessing unit 25 is specifically configured to perform detection, signal amplification, filtering, analog-to-digital conversion, digital signal processing, etc. on the received base station signal.

[0101] The control unit 23 controls the second selection unit 26 to select the signal preprocessing unit and the signal strength reading unit 27 alternately, so that the signal strength reading unit 27 reads the signal strength information of the base station signal received by the antenna unit 11 through the AT command. The signal strength reading unit 27 feeds back the strength information of the base station signal received by each antenna unit 11 to the control unit 23 alternately. The control unit 23 controls the first control unit 23 to communicate with the antenna unit 11 receiving the strongest base station signal according to the strength information of the base station signal received by each antenna unit 11.

[0102] For the tracking station module 2 in this example, by taking turns to detect the base station signals received by each antenna, the number of ports of the control unit 23 can be reduced, and the cost can be lowered.

[0103] In some examples, FIG. 5 is a perspective view of a communication device according to an embodiment of the present disclosure; FIG. 6 is a perspective view of an antenna unit 11 according to an embodiment of the present disclosure; as shown in FIGS. 5 and 6, the antenna unit 11 according to an embodiment of the present disclosure includes a first dipole and a second dipole; the operating frequency of the first dipole is less than the operating frequency of the second dipole. Specifically, the operating frequency band of the first dipole is low frequency 700 MHz using FDD frequency division mode, and the operating frequency band of the second dipole is high frequency 2.6 GHz using TDD time division mode; both the first dipole and the second dipole are designed as a transceiver integrated common aperture. For the convenience of description, the first dipole is referred to as a low-frequency dipole 111, and the second dipole is referred to as a high-frequency dipole 112.

[0104] Further, with reference to FIGS. 5 and 6, in order to reduce the mutual influence between the high-frequency dipole 112 and the low-frequency dipole 111, the height of the high-frequency dipole 112 is different from the height of the low-frequency dipole 111. Specifically, for each antenna unit 11, the high-frequency dipole 112 and the low-frequency dipole 111 are arranged side by side, and the height of the low-frequency dipole 111 in the direction away from the bearing structure is greater than the height of the high-frequency dipole 112 in the direction away from the bearing structure. Further, for each antenna unit 11, the number of low-frequency dipoles 111 and the number of high-frequency dipoles 112 can both be multiple, and a high-frequency dipole 112 is arranged between two low-frequency dipoles 111. Specifically, in order to achieve coverage enhancement, two low-frequency dipoles 111 and three high-frequency dipoles 112 are arranged in each antenna unit 11, the three high-frequency dipoles 112 are arranged between the two low-frequency dipoles 111, and the spacing between the adjacent high-frequency dipoles 112 is equal. In the embodiment of the present disclosure, the spacing between the low-frequency dipoles 111 and the spacing between the high-frequency dipoles 112 are both related to the wavelength. In some examples, the spacing between the low-frequency dipoles 111 and the spacing between the high-frequency dipoles 112 can both be 0.4-0.6 wavelengths. In one specific example, the spacing between the low-frequency dipoles 111 is 240 mm, and the spacing between the high-frequency dipoles 112 is 75 mm, in which case, a larger coverage capability is achieved in a smaller space and at a lower cost. Of course, the number of low-frequency dipoles 111 and the number of high-frequency dipoles 112 are not limited to the above cases; when more low-frequency dipoles 111 are used, the spacing between the adjacent low-frequency dipoles 111 needs to be equal; and similarly, when more high-frequency dipoles 112 are used, the spacing between the adjacent high-frequency dipoles 112 also needs to be equal.

[0105] In some examples, FIG. 7 is a perspective view of the low-frequency vibrator 111 according to an embodiment of the present disclosure; FIG. 8 is a front view of the low-frequency vibrator 111 according to an embodiment of the present disclosure; FIG. 9 is a top view of the first reference electrode 102 of the low-frequency vibrator 111 according to an embodiment of the present disclosure; as shown in FIGS. 7-9, the low-frequency vibrator 111 according to an embodiment of the present disclosure includes the first reference electrode 102, the first radiating structure 101, and the first transmission line 103. The first reference electrode 102 is disposed on a carrier structure, the first reference electrode 102 is disposed on the carrier structure, the first reference electrode 102 has a first hollow part V3, the first radiating structure 101 is disposed on the carrier structure through the first hollow pattern; the first transmission line 103 is connected with the first radiating structure 101. Wherein, the first reference electrode 102 and the first radiating structure 101 can form a current loop, and the first transmission line 103 is used for transmitting a radio frequency signal for the first radiating structure 101.

[0106] Wherein, the first radiating structure 101 includes the first support assembly 1013, the first radiating electrode 1011, and the second radiating electrode 1012; the first support assembly 1013 can specifically include the first support part 1013a and the second support part 1013b disposed side by side, and the first connecting part 1013c connecting the first support part 1013a and the second support part 1013b. The first connecting part 1013c is disposed on the carrier structure and located in the first hollow part V3, one end of the first support part 1013a is connected with the first connecting part 1013c, and the other end is connected with the first radiating electrode 1011; one end of the second support part 1013b is connected with the first connecting part 1013c, and the other end is connected with the second radiating electrode 1012. The first transmission line 103 is connected with the first radiating electrode 1011, and is connected with the first connecting electrode 104 through the first via penetrating the first radiating electrode 1011, and the first connecting electrode 104 is connected with the second radiating electrode 1012.

[0107] Referring to FIG. 7, the first support part 1013a and the second support part 1013b in the first support assembly 1013 are integrated structures with the first connecting part 1013c, in order to provide stable support, the width of the part of the first connecting part 1013c located on the carrier structure is greater than the interval between the first support part 1013a and the second support part 1013b.

[0108] Referring to FIG. 7, the first radiating electrode 1011 includes a first body part 1011a and a first fixing part 1011b connected to the first body part 1011a; the second radiating electrode 1012 includes a second body part 1012a and a second fixing part 1012b connected to the second body part 1012a; the first body part 1011a has a first opening V1, and the second body part 1012a has a second opening V2; the first transmission line 103 is connected to the first fixing part 1011b, and is connected to the first connecting electrode 104 through a first via hole penetrating the first fixing part 1011b, and the first connecting electrode 104 is connected to the second fixing part 1012b. In this case, by providing the first opening V1 on the first body part 1011a and the second opening V2 on the second body part 1012a, the current path can be lengthened, and the gain can be improved.

[0109] Further, the outer contour of the first body part 1011a and the second body part 1012a each includes a plurality of sides, and any two adjacent sides of the outer contour of the first body part 1011a form an obtuse angle; any two adjacent sides of the outer contour of the second body part 1012a form an obtuse angle. Since the first body part 1011a and the second body part 1012a each have an obtuse angle, electromagnetic wave reflection can be reduced, and loss can be reduced. Further, the first opening V1 has the same shape as the outer contour of the first body part 1011a; the second opening V2 has the same shape as the outer contour of the second body part 1012a. For example, the outer contour of the first body part 1011a is a regular hexagon, the shape of the first opening V1 is a regular hexagon, the outer contour of the second body part 1012a is a regular hexagon, and the shape of the second opening V2 is a regular hexagon. Of course, in some examples, the first opening V1 has a different shape than the outer contour of the first body part 1011a; the second opening V2 has a different shape than the outer contour of the second body part 1012a, for example, the outer contour of the first body part 1011a is a regular hexagon, the shape of the first opening V1 is a circle, the outer contour of the second body part 1012a is a regular hexagon, and the shape of the second opening V2 is a circle. Among them, the first opening V1 of the first radiating electrode 1011 and the second opening V2 of the second radiating electrode 1012 in the low-frequency vibrator 111 can effectively prevent the high-frequency vibrator 112 from being blocked.

[0110] In some examples, FIG. 10 is a perspective view of the high-frequency vibrator 112 according to an embodiment of the present disclosure; FIG. 11 is a front view of the high-frequency vibrator 112 according to an embodiment of the present disclosure; and FIG. 12 is a top view of the second reference electrode 202 of the high-frequency vibrator 112 according to an embodiment of the present disclosure. As shown in FIGS. 10-12, the high-frequency vibrator 112 according to an embodiment of the present disclosure includes a second reference electrode 202, a second radiating structure 201, and a second transmission line 203. The second reference electrode 202 is disposed on a carrier structure, the second reference electrode 202 has a second hollow portion V4, the second radiating structure 201 is disposed on the carrier structure through the second hollow portion V4, and the second transmission line 203 is connected to the second radiating structure 201. The second reference electrode 202 and the second radiating electrode 1012 can form a current loop, and the second transmission line 203 is used to transmit a radio frequency signal to the second radiating structure 201.

[0111] The second radiating structure 201 includes a third radiating electrode 2011, a fourth radiating electrode 2012, a second electrode 204, and a second support assembly 2013. The second support assembly 2013 can specifically include a third support portion 2013a and a fourth support portion 2013b disposed side by side, and a second connecting portion 2013c connecting the third support portion 2013a and the fourth support portion 2013b. The second connecting portion 2013c is disposed on the carrier structure and located in the second hollow portion V4, one end of the third support portion 2013a is connected to the second connecting portion 2013c, and the other end is connected to the third radiating electrode 2011. One end of the fourth support portion 2013b is connected to the second connecting portion 2013c, and the other end is connected to the fourth radiating electrode 2012. The second transmission line 203 is connected to the third radiating electrode 2011 and connected to the second electrode 204 through a second via hole penetrating the third radiating electrode 2011, and the second electrode 204 is connected to the fourth radiating electrode 2012.

[0112] Referring to FIG. 10, the third support portion 2013a and the fourth support portion 2013b in the second support assembly 2013 are integrated structures with the second connecting portion 2013c. In order to provide stable support, the width of the part of the second connecting portion 2013c located on the carrier structure is greater than the distance between the third support portion 2013a and the fourth support portion 2013b.

[0113] Continuing to refer to FIG. 10, the third radiating electrode 2011 and the fourth radiating electrode 2012 each include oppositely arranged first and second side edges, oppositely arranged third and fourth side edges, and first and second connecting edges. For the third radiating electrode 2011, the first side edge has two ends connected to the third and fourth side edges, respectively, one end of the second side edge is connected to the third side edge through the first connecting edge, and the other end of the second side edge is connected to the fourth side edge through the second connecting edge; the two inner angles formed by the first connecting edge and the third and second side edges are obtuse angles. For the fourth radiating electrode 2012, the first side edge is adjacent to the first side edge of the third radiating electrode 2011; the first side edge has two ends connected to the third and fourth side edges, respectively, one end of the second side edge is connected to the third side edge through the first connecting edge, and the other end of the second side edge is connected to the fourth side edge through the second connecting edge; the two inner angles formed by the first connecting edge and the third and second side edges are obtuse angles. That is, the third radiating electrode 2011 and the fourth radiating electrode 2012 can each be obtained by cutting a square patch. The third radiating electrode 2011 and the fourth radiating electrode 2012 of this structure can not only lengthen the current path to achieve antenna miniaturization, but also reduce microwave loss.

[0114] When the low-frequency oscillator 111 adopts the structure shown in FIG. 7, the perimeters of the outer contours of the first and second radiating electrodes 1011 and 1012 of the low-frequency oscillator 111 can be 0.2-0.3 wavelengths. The maximum side length of the outer contours of the third and fourth radiating electrodes 2011 and 2012 of the high-frequency oscillator 112 can also be 0.2-0.3 wavelengths. In one example, the maximum side length of the first and second radiating electrodes 1011 and 1012 is 22 mm, and the height of the first support assembly 1013 is 98 mm. Simulation of the low-frequency oscillator 111 shows that the horizontal direction diagram is as shown in FIG. 13, and the gain of the low-frequency oscillator 111 can reach 7.6 dBi. When the high-frequency oscillator 112 adopts the structure shown in FIG. 10, the maximum side length of the third and fourth radiating electrodes 2011 and 2012 is 18 mm, and the height of the first support assembly 1013 is 36.5 mm. Simulation of the low-frequency oscillator 111 shows that the horizontal direction diagram is as shown in FIG. 14, and the gain of the low-frequency oscillator 111 can reach 8.3 dBi.

[0115] When the above-mentioned 3 high-frequency oscillators 112 and 2 low-frequency oscillators 111 are used to form the antenna unit 11, and six antenna units 11 are used to form the antenna module 1, the specific structure is shown in FIG. 5. At this time, the antenna module 1 low-frequency 700MHz directional diagram is shown in FIG. 15, and the antenna module 1 high-frequency 2.6GHz directional diagram is shown in FIG. 16. According to the Friss transmission formula, under the condition that other conditions remain unchanged, the antenna gain is improved, which can increase the coverage distance.

[0116] In some examples, the second reference electrode 202 in the second radiating structure 201 and the first reference electrode 102 in the first radiating structure 101 can be an integrally formed structure. This structure is simple and easy to control.

[0117] In some examples, the first radiating structure 101 in the low-frequency oscillator 111 and the second radiating structure 201 in the high-frequency oscillator 112 can both use metal sheet parts.

[0118] In some examples, the carrier structure can adopt a hollow structure, and the feed network in the antenna module 1 can be arranged in the hollow cavity of the carrier structure and connected with the first transmission line 103 and the second transmission line 203 in each of the antenna units 11. For example, the feed network can include a first feed network and a second feed network, and the first transmission line 103 in each of the antenna units 11 can be electrically connected with the first feed network through a via hole penetrating through the carrier structure, and the second transmission line 203 in each of the antenna units 11 can be electrically connected with the second feed network through a via hole penetrating through the carrier structure. At this time, the structure of the antenna module 1 is simple and easy to realize miniaturization.

[0119] In some examples, referring to FIGS. 5 and 6, the antenna unit 11 further includes a first isolation component 113 corresponding to the high-frequency oscillator 112, and the orthographic projection of the high-frequency oscillator 112 on the carrier structure is located within the area defined by the orthographic projection of the corresponding first isolation component 113 on the carrier structure. The first isolation component 113 prevents mutual interference between the high-frequency oscillator 112 and the low-frequency oscillator 111. The first isolation component 113 can be a ring-shaped fence structure formed by sequentially splicing isolation plates, for example, a square fence structure formed by sequentially splicing four isolation plates.

[0120] In some examples, referring to FIG. 5, the carrier structure can be composed of a plurality of carrier parts 12 connected in sequence, and one of the carrier parts 12 is provided with one of the antenna units 11. A second isolation component 13 is arranged between any two connected carrier parts 12, and one of the antenna units 11 is arranged between two adjacent second isolation components 13. The second isolation component 13 is arranged to prevent mutual interference between adjacent antenna units 11.

[0121] In some examples, FIG. 17 is an exploded view of the communication device of the embodiment of the present disclosure; FIG. 18 is an assembly view of the communication device of the embodiment of the present disclosure; as shown in FIGS. 17 and 18, the communication device in the embodiment of the present disclosure not only includes the above structure, but also includes a base and an antenna cover; the bearing structure is mounted on the base, and the antenna cover is arranged outside the bearing structure and fixed with the base to limit the antenna unit 11 in the antenna cover. Among them, the antenna cover is used to protect the antenna module 1, so the antenna cover needs to be made of waterproof material, for example, a polytetrafluoroethylene integrated molding structure. Further, a sealing ring is arranged between the antenna cover and the base, specifically a waterproof gasket, which can further seal and waterproof. The antenna cover and the base can be fastened by screws.

[0122] FIG. 19 is a flowchart of the communication method of the embodiment of the present disclosure; as shown in FIG. 19, the embodiment of the present disclosure also provides a communication method of the above communication device, which can include the following steps:

[0123] S1, the tracking module 2 determines the antenna unit 11 to be connected with the 5G CPE module 3 according to the signal strength information of the base station signal received by each antenna unit 11, and the control unit 23 determines the antenna unit 11 to be connected with the 5G CPE module 3 according to the strength signal of the base station signal received by each antenna unit 11 obtained by the tracking module 2.

[0124] S2, the control unit 23 controls the first selection unit 24 to switch the antenna unit 11 connected with the 5G CPE module 3 in response to the antenna unit 11 currently connected with the 5G CPE module 3 being different from the antenna unit 11 determined to be connected with the 5G CPE module 3.

[0125] S3, the 5G CPE module 3 performs signal conversion on the signal received thereby for user terminal access.

[0126] In the communication method provided by the embodiment of the present disclosure, the tracking module 2 first determines the signal strength information of the base station signal received by each antenna unit 11, and then takes the one receiving the strongest base station signal as the antenna unit 11 connected with the 5G CPE module 3, so that the signal strength output by the 5G CPE module 3 will be stronger, thereby improving the user's online experience.

[0127] In some examples, FIG. 20 is a specific flowchart of step S1 in the communication method of the embodiment of the present disclosure; as shown in FIG. 20, S1, the tracking module 2 controls the unit 23 to determine the antenna unit 11 to be connected with the 5G CPE module 3 according to the signal strength information of the base station signal received by each antenna unit 11, which can specifically include:

[0128] S111, the signal coupler couples part of the signal received by the antenna unit 11 connected therewith to the signal detection unit 22, and transmits another part to the first selection unit 24.

[0129] S112, the signal detection unit 22 detects the signal received thereby to obtain the signal strength information of the base station signal.

[0130] S113, the control unit 23 generates a corresponding control signal according to the signal strength information of the base station signal detected by each signal detection unit 22 received thereby and sends it to the first selection unit 24.

[0131] S114, the first selection unit 24 determines the antenna unit 11 to be connected with the 5G CPE module 3 according to the control signal and connects it with the 5G CPE module 3.

[0132] In some examples, FIG. 21 is another specific flowchart of step S1 in the communication method of the embodiment of the present disclosure; as shown in FIG. 21, S1, the tracking module 2 controls the unit 23 to determine the antenna unit 11 to be connected with the 5G CPE module 3 according to the signal strength information of the base station signal received by each antenna unit 11, which can specifically include:

[0133] S121, the signal coupler couples part of the signal received by the antenna unit 11 connected therewith to the signal detection unit 22, and transmits another part to the first selection unit 24.

[0134] S122, the signal pre-processing module pre-processes the signal received thereby.

[0135] S123, the control unit 23 controls the second selection unit 26 to alternately select the connection of the signal pre-processing unit 25 and the signal strength reading unit 27, reads the signal output by the second selection unit 26 through the signal strength reading unit 27, and determines the signal strength information of the base station signal received by the antenna unit 11.

[0136] S124, the control unit 23 reads the signal strength information of the base station signal read by the signal strength reading module according to the signal strength received by it, and generates a corresponding control signal and sends it to the first selection unit 24.

[0137] S125, through the first selection unit 24, the antenna unit 11 to be communicated with the 5G CPE module 3 is determined according to the control signal, and is communicated with the 5G CPE module 3.

[0138] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also considered to be within the protection scope of the present application.

Claims

1. A communication device comprising an antenna module, a determining module and a signal conversion module; wherein, the antenna module comprises a bearing structure and a plurality of antenna units installed on the outer wall of the bearing structure; the determining module is configured to determine the antenna unit to be connected with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit; the signal conversion module is configured to perform signal conversion on the signal received thereby for user terminal access.

2. The communication device of claim 1, wherein, the determining module comprises a plurality of signal coupling units, a plurality of signal detection units connected with the signal coupling units correspondingly, a control unit and a first selection unit; the plurality of signal couplers are connected with the antenna units one by one and are configured to couple part of the signal received by the antenna unit connected therewith to the signal detection unit and transmit another part to the first selection unit; the signal detection unit is configured to detect the signal received thereby to obtain the signal strength information of the base station signal; the control unit is configured to generate corresponding control signal to the first selection unit according to the signal strength information of the base station signal detected by each signal detection unit received thereby; the first selection unit is configured to determine the antenna unit to be connected with the signal conversion module according to the control signal and connect the same with the signal conversion module.

3. The communication device of claim 1, wherein, the determining module comprises a plurality of signal coupling units, a plurality of signal preprocessing units connected with the signal coupling units correspondingly, a signal strength reading unit, a first selection unit, a control unit and a second selection unit; the plurality of signal couplers are connected with the antenna units one by one and are configured to couple part of the signal received by the antenna unit connected therewith to the signal detection unit and transmit another part to the first selection unit; the signal preprocessing unit is configured to preprocess the signal received thereby; the second selection unit is configured to select the connection of the signal preprocessing unit and the signal strength reading unit alternately under the control of the control unit; the signal strength reading unit is configured to read the signal output by the second selection unit under the control of the control unit and determine the signal strength information of the base station signal received by the antenna unit; the control unit is configured to generate corresponding control signal to the first selection unit according to the signal strength information of the base station signal read by each signal strength reading module received thereby; the first selection unit is configured to determine the antenna unit to be connected with the signal conversion module according to the control signal and connect the same with the signal conversion module.

4. The communication device of claim 1, wherein, The signal strength information at least comprises signal receiving power.

5. The communication device of claim 1, wherein, The antenna unit comprises a first oscillator and a second oscillator; the working frequency of the first oscillator is less than that of the second oscillator.

6. The communication device of claim 5, wherein, The first element and the second element in the antenna unit are arranged side by side, and the height of the first element along the direction away from the carrier structure is greater than the height of the second element along the direction away from the carrier structure.

7. The communication device of claim 5, wherein, The first element and the second element in the antenna unit are arranged side by side, and the second element is located between the two first elements.

8. The communication device of claim 7, wherein, When the number of the second elements is multiple, the antenna unit further comprises a first isolation component arranged on the carrier structure and corresponding to the second elements, and the orthographic projection of the second element on the carrier structure is located in the area defined by the orthographic projection of the first isolation component on the carrier structure.

9. The communication device of claim 1, wherein, The first element comprises a first reference electrode, a first radiation structure and a first transmission line. The first reference electrode is arranged on the carrier structure, and the first reference electrode has a first hollow part, and the first radiation structure is arranged on the carrier structure through the first hollow part. The first transmission line is connected with the first radiation structure.

10. The communication device of claim 9, wherein, The first radiation structure comprises a first radiation electrode, a second radiation electrode, a first connection electrode and a first support component. The first support component comprises a first support part and a second support part arranged side by side, and a first connection part connecting the first support part and the second support part; the first connection part is arranged on the carrier structure and located in the first hollow part, one end of the first support part is connected with the first connection part, and the other end is connected with the first radiation electrode, one end of the second support part is connected with the first connection part, and the other end is connected with the second radiation electrode. The first transmission line is connected with the first radiation electrode, and connected with the first connection electrode through a first via penetrating the first radiation electrode, and the first connection electrode is connected with the second radiation electrode.

11. The communication device of claim 10, wherein, The first radiation electrode comprises a first main body part and a first fixed part connected with the first main body part; the second radiation electrode comprises a second main body part and a second fixed part connected with the second main body part. The first main body part has a first opening, and the second main body part has a second opening. The first transmission line is connected with the first fixed part, and connected with the first connection electrode through a first via penetrating the first fixed part, and the first connection electrode is connected with the second fixed part.

12. The communication device of claim 11, wherein, The outer contour of the first main body part and the second main body part each comprises a plurality of sides, and the inner angle formed by any two adjacent sides of the outer contour of the first main body part is obtuse; the inner angle formed by any two adjacent sides of the outer contour of the second main body part is obtuse.

13. The communication device of claim 11, wherein, The first opening has the same shape as the outer contour of the first main body part; and the second opening has the same shape as the outer contour of the second main body part.

14. The communication device of claim 1, wherein, The second element comprises a second reference electrode, a second radiation structure and a second transmission line. The second reference electrode is arranged on the carrier structure, and the second reference electrode has a second hollow part, and the second radiation structure is arranged on the carrier structure through the second hollow part. The second transmission line is connected with the second radiation structure.

15. The communication device of claim 14, wherein, The second radiation structure comprises a third radiation electrode, a fourth radiation electrode, a second connecting electrode and a second support assembly; The second support assembly comprises a third support part and a fourth support part arranged side by side, and a second connecting part connecting the third support part and the fourth support part; the second connecting part is arranged on the bearing structure and located in the second hollow part, one end of the third support part is connected to the second connecting part, and the other end is connected to the third radiation electrode, one end of the fourth support part is connected to the second connecting part, and the other end is connected to the fourth radiation electrode; The second transmission line is connected to the third radiation electrode and connected to the second connecting electrode through a second via penetrating the third radiation electrode, and the second connecting electrode is connected to the fourth radiation electrode.

16. The communication device of claim 15, wherein, The third radiation electrode and the fourth radiation electrode each comprise a first side edge and a second side edge arranged opposite to each other, a third side edge and a fourth side edge arranged opposite to each other, and a first connecting edge and a second connecting edge; For the third radiation electrode, two ends of the first side edge are connected to the third side edge and the fourth side edge respectively, one end of the second side edge is connected to the third side edge through the first connecting edge, and the other end of the second side edge is connected to the fourth side edge through the second connecting edge; the two inner angles formed by the first connecting edge and the third side edge and the second side edge are obtuse angles respectively; For the fourth radiation electrode, the first side edge is adjacent to the first side edge of the third radiation electrode; two ends of the first side edge are connected to the third side edge and the fourth side edge respectively, one end of the second side edge is connected to the third side edge through the first connecting edge, and the other end of the second side edge is connected to the fourth side edge through the second connecting edge; the two inner angles formed by the first connecting edge and the third side edge and the second side edge are obtuse angles respectively. The bearing structure is a hollow structure comprising a plurality of bearing parts connected in sequence, and one of the bearing parts is provided with one of the antenna units.

17. The communication device of any of claims 1-16, wherein, A second isolation assembly is arranged between any two bearing parts connected to each other, and one of the antenna units is arranged between two adjacent second isolation assemblies.

18. The communication device of claim 17, wherein, The antenna module further comprises a feeding network connected to the first transmission line and the second transmission line in each of the antenna units; the feeding network is arranged in the hollow cavity of the bearing structure.

19. The communication device of claim 17, wherein, The antenna module further comprises a base and a radome; the bearing structure is mounted on the base, the radome is arranged outside the bearing structure and fixed to the base, and the antenna units are limited in the radome.

20. The communication device of claim 17, wherein, A sealing ring is arranged between the radome and the base.

21. The communication device of claim 17, wherein, The signal conversion module is a 5G CPE module.

22. The communication device of claim 1, wherein, 23. A communication method applied to the communication device of any one of claims 1-22; the communication method comprises: determining, by the determination module, the antenna unit to be connected in communication with the signal conversion module according to the signal strength information of the base station signal received by each of the antenna units; ​ The signal conversion module converts the received signal for the user terminal to access.

24. The communication method according to claim 23, wherein, The determination module determines the antenna unit to be connected with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit. The signal coupler couples part of the signal received by the antenna unit connected therewith to the signal detection unit, and transmits another part to the first selection unit. The signal detection unit detects the received signal to obtain the signal strength information of the base station signal. The control unit generates a corresponding control signal according to the signal strength information of the base station signal detected by each signal detection unit, and sends the control signal to the first selection unit. The first selection unit determines the antenna unit to be connected with the signal conversion module according to the control signal, and connects the antenna unit with the signal conversion module.

25. The communication method according to claim 23, wherein, The determination module determines the antenna unit to be connected with the signal conversion module according to the signal strength information of the base station signal received by each antenna unit. The signal coupler couples part of the signal received by the antenna unit connected therewith to the signal detection unit, and transmits another part to the first selection unit. The signal preprocessing module pre-processes the received signal. The control unit controls the second selection unit to alternately connect the signal preprocessing unit and the signal strength reading unit, reads the signal output by the second selection unit through the signal strength reading unit, and determines the signal strength information of the base station signal received by the antenna unit. The control unit generates a corresponding control signal according to the signal strength information of the base station signal read by each signal strength reading module, and sends the control signal to the first selection unit. The first selection unit determines the antenna unit to be connected with the signal conversion module according to the control signal, and connects the antenna unit with the signal conversion module.

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