Wireless repeater system

Abstract

A wireless repeater system comprises a mode switching device, a donor antenna, a retransmission antenna, a relay unit and a CPE device. Wherein the donor antenna and the retransmission antenna are connected through the CPE device and / or the relay unit; the mode switching device is respectively connected with the relay unit and the CPE device, and the mode switching device has a first mode, a second mode and a third mode; in the first mode, the donor antenna and the retransmission antenna are connected through the CPE device; in the second mode, the donor antenna and the retransmission antenna are connected through the relay unit; and in the third mode, the donor antenna and the retransmission antenna are connected with the relay unit through the CPE device. According to the wireless repeater system provided by the invention, switching among a pure wireless relay mode, a pure CPE device mode and a wireless relay + CPE device mode can be realized, the problem that a WIFI function cannot be supported or only cellular + WiFi simultaneous output is supported at present is solved, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of mobile communication technology, and more specifically to a wireless repeater system. Background Technology

[0002] A repeater is a type of relay communication device whose basic function is to amplify received donor signals and extend coverage to the target area via a retransmission antenna (or transmit signals back to the target base station). Wireless repeaters (wireless repeaters) are one type of repeater; they communicate wirelessly with the donor source, and their performance depends on air interface quality and antenna capabilities.

[0003] The wireless repeaters used in existing communication systems generally only support relay amplification of the source signal. The advantage is that the system structure is simple and the cost is controllable, but the disadvantage is that the output signal standard is relatively single, only supporting the frequency band standard of the corresponding operator, making it difficult to cover all end users. On the other hand, commercial customer premise equipment (CPE) is mostly designed for home and enterprise users, and is usually an integrated antenna and host design, which performs poorly in 5G indoor weak coverage areas.

[0004] A patented solution, based on the wireless repeater structure, integrates a 5G signal processing module and a Wireless Fidelity (WiFi) module to simultaneously demodulate the 5G signal input to the repeater and convert it into a WiFi signal for transmission. This solution partially solves the problem that traditional wireless repeaters cannot support Wireless Local Area Network (WLAN) access, but it has the following drawbacks: 1. It has a single operating mode, only supporting simultaneous cellular and WiFi output; 2. When the source signal strength deteriorates, the quality of the output WiFi signal will also decrease. Utility Model Content

[0005] At least one embodiment of this application provides a wireless repeater system to solve the problem that improved wireless repeaters in the prior art only support simultaneous output of cellular + WIFI.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] This application provides a wireless repeater system, including: a mode switching device, a donor antenna, a retransmission antenna, a repeater unit for amplifying radio frequency signals, and a CPE device for converting radio frequency signals and WiFi signals.

[0008] The donor antenna and the repeater antenna are connected via a CPE device and / or the relay unit.

[0009] The mode switching device is connected to the relay unit and the CPE device respectively, and the mode switching device has a first mode, a second mode and a third mode; wherein, in the first mode, the donor antenna and the retransmission antenna are connected through the CPE device; in the second mode, the donor antenna and the retransmission antenna are connected through the relay unit; in the third mode, the donor antenna and the retransmission antenna are connected through the CPE device and the relay unit.

[0010] Preferably, in the wireless repeater system described above, the third mode includes a first sub-mode and a second sub-mode;

[0011] In the first sub-mode, the donor antenna and the retransmission antenna are connected in parallel via the relay unit and the CPE device;

[0012] In the second sub-mode, the donor antenna, the relay unit, the CPE device, and the retransmission antenna are connected in sequence, and the output terminal of the relay unit is connected to the retransmission antenna.

[0013] Specifically, in the wireless repeater system described above, the mode switching device includes: a first switch, a second switch, and a control unit. The control unit is connected to the control terminals of the first switch and the second switch, and is also connected to the repeater unit and the CPE device.

[0014] Wherein, the first input terminal of the first switch is connected to the donor antenna, the first output terminal of the first switch is connected to the second switch, and the second output terminal of the first switch is connected to the second switch and the relay unit;

[0015] The second input terminal of the second switch is connected to the first output terminal of the first switch, the third input terminal of the second switch is connected to the first output terminal of the first switch, the fourth input terminal of the second switch is connected to the output terminal of the relay unit, and the third output terminal of the second switch is connected to the CPE device.

[0016] In the first mode, the first switch connects the first input terminal and the first output terminal, and the second switch connects the second input terminal and the third output terminal.

[0017] In the second mode, the first switch connects the first input terminal and the second output terminal, and the second switch connects the second input terminal and the third output terminal;

[0018] In the first sub-mode, the first switch connects the first input terminal and the second output terminal, and the second switch connects the third input terminal and the third output terminal.

[0019] In the second sub-mode, the first switch connects the first input terminal and the second output terminal, and the second switch connects the fourth input terminal and the third output terminal.

[0020] Preferably, the wireless repeater system described above further includes:

[0021] The first combiner connects the third input terminal of the second switch and the input terminal of the relay unit to the second output terminal of the first switch.

[0022] Preferably, the wireless repeater system described above further includes:

[0023] The output terminals of the CPE device and the relay unit are connected to the repeater antenna via the second combiner.

[0024] Preferably, the wireless repeater system described above further includes:

[0025] The fourth input terminal of the second switch is coupled to the output terminal of the relay unit through the coupler.

[0026] Preferably, the wireless repeater system described above further includes:

[0027] An attenuator is provided on the connection line between the fourth input terminal of the second switch and the output terminal of the relay unit.

[0028] Specifically, in the wireless repeater system described above, the CPE device includes: a radio frequency unit, a baseband unit, and a WiFi unit connected in sequence.

[0029] Specifically, the wireless repeater system described above also includes a power management unit for supplying power to the wireless repeater system.

[0030] Preferably, in the wireless repeater system described above, the first switch is a single-pole double-throw switch, and the second switch is a single-pole triple-throw switch.

[0031] Compared with the prior art, the wireless repeater system provided in this application embodiment enables the entire wireless repeater system to switch between pure wireless repeater mode, pure CPE mode, and wireless repeater + CPE mode by setting the mode switching in the mode switching device. This allows users to choose the usage mode according to their needs, thereby solving the current problem of not being able to support WIFI function or only supporting simultaneous output of cellular + WiFi, and improving the user experience. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure of a wireless repeater system according to an embodiment of this application.

[0034] [Explanation of Labels in the Attached Image]

[0035] 1. Mode switching device; 101. First switch; 102. Second switch; 103. Control unit; 2. Donor antenna; 3. Retransmission antenna; 4. Repeater unit; 5. CPE device; 501. Radio frequency unit; 502. Baseband unit; 503. WIFI unit; 6. First combiner; 7. Second combiner; 8. Coupler; 9. Attenuator. Detailed Implementation

[0036] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The terms "and / or" in the specification and claims indicate at least one of the connected objects.

[0038] The following description provides examples and is not intended to limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the function and arrangement of the elements discussed without departing from the spirit and scope of this disclosure. Various procedures or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0039] It should be noted that since the signal from donor antenna 2 to retransmit antenna 3 and the signal from retransmit antenna 3 to donor antenna 2 are inverse operations, and this is common knowledge, the embodiments in this application are mainly illustrated by taking the signal from donor antenna 2 to retransmit antenna 3 as an example.

[0040] Please refer to Figure 1 The present application provides a wireless repeater system, including: a mode switching device 1, a donor antenna 2, a retransmission antenna 3, a repeater unit 4 for amplifying radio frequency signals, and a CPE device 5 for converting radio frequency signals and WiFi signals.

[0041] The donor antenna 2 and the repeater antenna 3 are connected via the CPE device 5 and / or the relay unit 4.

[0042] The mode switching device 1 is connected to the relay unit 4 and the CPE device 5 respectively. The mode switching device 1 has a first mode, a second mode and a third mode. In the first mode, the donor antenna 2 and the retransmission antenna 3 are connected through the CPE device 5. In the second mode, the donor antenna 2 and the retransmission antenna 3 are connected through the relay unit 4. In the third mode, the donor antenna 2 and the retransmission antenna 3 are connected through the CPE device 5 and the relay unit 4.

[0043] The wireless repeater system provided in this embodiment includes: a mode switching device 1, a donor antenna 2 for communicating with a donor base station, a repeater antenna 3 for communicating with a user terminal, a repeater unit 4 for amplifying radio frequency signals, and a CPE device 5 for converting radio frequency signals and WiFi signals. The donor antenna 2 and the repeater antenna 3 are connected via the CPE device 5 and / or the repeater unit 4. The mode switching device 1 controls the connection status of the donor antenna 2 and the repeater antenna 3 with the CPE device 5 and / or the repeater unit 4. Specifically, the mode switching device 1 includes at least three modes: a first mode where the donor antenna 2 and the repeater antenna 3 are connected only via the CPE device 5; a second mode where the donor antenna 2 and the repeater antenna 3 are connected only via the repeater unit 4; and a third mode where the donor antenna 2 and the repeater antenna 3 are connected via both the CPE device 5 and the repeater unit 4. In the first mode, the wireless repeater system only provides WiFi access. When the donor signal quality is excellent, the insertion loss is minimal and the system noise is lowest. The WIFI unit 503 can enable Multi-User Multiple-Input Multiple-Output (MU-MIMO) within the current coverage area, fully utilizing source resources to maximize system performance. In the second mode, the wireless repeater system provides only cellular access. This mode is suitable for providing basic indoor coverage, but its performance is limited by source quality and the number of system channels. In the third mode, the wireless repeater system provides both cellular and WiFi access.

[0044] This allows the mode switching device 1 to control the mode of the entire wireless repeater system by switching between modes. Specifically, by switching between the first mode, the second mode, and the third mode, the mode of the entire wireless repeater system can be switched between pure wireless repeater mode, pure CPE mode, and wireless repeater + CPE mode. This allows users to choose the mode according to their needs, thus solving the current problem of not being able to support WIFI function or only supporting simultaneous cellular + WiFi output, and improving the user experience.

[0045] It should be noted that the mode switching device 1 can be controlled based on user input or parameter information obtained from the relay unit 4 and / or CPE unit when performing mode switching.

[0046] It should be noted that the relay unit 4 described in this application can be the relay structure of a wireless repeater in an existing communication system, which includes, but is not limited to, uplink and downlink amplification channels and duplexers or radio frequency switches other than antennas. Its specific structure will not be described in detail here.

[0047] Preferably, in the wireless repeater system described above, the third mode includes a first sub-mode and a second sub-mode;

[0048] In the first sub-mode, the donor antenna 2 and the retransmission antenna 3 are connected in parallel via the relay unit 4 and the CPE device 5.

[0049] In the second sub-mode, the donor antenna 2, the relay unit 4, the CPE device 5, and the retransmission antenna 3 are connected in sequence, and the output terminal of the relay unit 4 is connected to the retransmission antenna 3.

[0050] The wireless repeater system provided in this embodiment further discloses a third mode, which includes a first sub-mode and a second sub-mode. In the first sub-mode, the donor antenna 2 and the retransmission antenna 3 are connected to the CPE device 5 in parallel via the repeater unit 4. In this mode, the wireless repeater system can achieve a wireless repeater + CPE mode, providing dual access to cellular and WiFi. In this state, the wireless repeater system supports the most terminal types, and the CPE device 5 can directly receive the donor signal (RF signal) from the donor antenna 2, ensuring a certain level of system performance. This mode is suitable for situations with strong donor signal strength. In the second sub-mode, the CPE device 5 is connected in series with the repeater unit 4, and the repeater unit 4 can be directly connected to the retransmission antenna 3. While ensuring the implementation of the wireless repeater + CPE mode (providing dual access to cellular and WiFi), the RF signal received by the CPE device 5 is amplified by the repeater unit 4. This ensures the signal strength received by the CPE device 5 even when the donor signal strength decreases, preventing the inability to provide WiFi functionality due to a weakened donor signal. In summary, by setting and switching between the first sub-mode and the second sub-connection, this application can ensure that the donor antenna 2 can provide dual access of cellular + WiFi under different signal strengths, thereby improving the user experience.

[0051] Please refer to Figure 1 Specifically, in the wireless repeater system described above, the mode switching device 1 includes: a first switch 101, a second switch 102, and a control unit 103. The control unit 103 is connected to the control terminals of the first switch 101 and the second switch 102, and is also connected to the repeater unit 4 and the CPE device 5.

[0052] Wherein, the first input terminal of the first switch 101 is connected to the donor antenna 2, the first output terminal of the first switch 101 is connected to the second switch 102, and the second output terminal of the first switch 101 is connected to the second switch 102 and the relay unit 4;

[0053] The second input terminal of the second switch 102 is connected to the first output terminal of the first switch 101, the third input terminal of the second switch 102 is connected to the first output terminal of the first switch 101, the fourth input terminal of the second switch 102 is connected to the output terminal of the relay unit 4, and the third output terminal of the second switch 102 is connected to the CPE device 5.

[0054] In the first mode, the first switch 101 connects the first input terminal and the first output terminal, and the second switch 102 connects the second input terminal and the third output terminal.

[0055] In the second mode, the first switch 101 connects the first input terminal and the second output terminal, and the second switch 102 connects the second input terminal and the third output terminal;

[0056] In the first sub-mode, the first switch 101 connects the first input terminal and the second output terminal, and the second switch 102 connects the third input terminal and the third output terminal.

[0057] In the second sub-mode, the first switch 101 connects the first input terminal and the second output terminal, and the second switch 102 connects the fourth input terminal and the third output terminal.

[0058] This embodiment illustrates the specific structure of the mode switching device 1, which includes a first switch 101, a second switch 102, and a control unit 103. The control unit 103 is connected to the control terminals of the first switch 101 and the second switch 102, and is also connected to the relay unit 4 and the CPE device 5. It can control the mode of the first switch 101 and / or the second switch 102 according to user input and / or parameter information obtained from the relay unit 4 and / or the CPE device 5, thereby realizing the switching of the mode switching device 1 between the first mode, the second mode, and the third mode, or more specifically, between the first mode, the second mode, the first sub-mode, and the second sub-mode.

[0059] Specifically, in Figure 1 In this context, since both the first switch 101 and the second switch 102 involve more than two connection terminals, for ease of distinction, the connection terminals of the first switch 101 and the second switch 102 facing the donor antenna 2 are designated as input terminals, and the connection terminals facing the retransmission antenna 3 are designated as output terminals.

[0060] In the first mode, the first switch 101 connects the first input terminal and the first output terminal, and the second switch 102 connects the second input terminal and the third output terminal. The first output terminal is connected to the second input terminal, so that the donor antenna 2 is connected to the retransmission antenna 3 through at least the first input terminal of the first switch 101, the first output terminal of the first switch 101, the second input terminal of the second switch 102, the third output terminal of the second switch 102, and the CPE device 5. At this time, the donor signal is only transmitted to the CPE device 5 and not to the repeater unit 4, thereby realizing that the donor antenna 2 and the retransmission antenna 3 are only connected to the CPE device 5, realizing the pure CPE mode.

[0061] In the second mode, the first switch 101 connects the first input terminal and the second output terminal, the second switch 102 connects the second input terminal and the third output terminal, and the second output terminal is not connected to the second input terminal, so that the donor antenna 2 is connected to the retransmission antenna 3 through at least the first input terminal of the first switch 101, the second output terminal of the first switch 101, and the relay unit 4, so that the donor antenna 2 and the retransmission antenna 3 are only connected by the relay unit 4, realizing a pure wireless relay mode.

[0062] In the first sub-mode, the first switch 101 connects the first input terminal and the second output terminal, and the second switch 102 connects the third input terminal and the third output terminal, and the second output terminal is connected to the third input terminal. This allows the donor antenna 2 to be connected to the retransmission antenna 3 via two routes after passing through the first input terminal and the second output terminal of the first switch 101. One route connects to the retransmission antenna 3 via the relay unit 4, and the other route connects to the retransmission antenna 3 via the third input terminal, the third output terminal of the second switch 102, and the CPE device 5. This connects the donor antenna 2 and the retransmission antenna 3 with the relay unit 4 and the CPE device 5, realizing the wireless relay + CPE mode.

[0063] In the second sub-mode, the first switch 101 connects the first input terminal and the second output terminal, and the second switch 102 connects the fourth input terminal and the third output terminal. The second output terminal is not connected to the fourth input terminal, but the fourth input terminal is connected to the output terminal of the relay unit 4. This allows the donor antenna 2, after passing through the first input terminal of the first switch 101, the second output terminal of the first switch 101, and the relay unit 4, to connect to the retransmission antenna 3 via two routes: one route connects to the retransmission antenna 3 without passing through the CPE device 5, and the other route connects to the retransmission antenna 3 via the fourth input terminal of the second switch 102, the third output terminal of the second switch 102, and the CPE device 5. This connects the donor antenna 2 and the retransmission antenna 3 to the relay unit 4 and the CPE device 5, realizing a wireless relay + CPE mode. Furthermore, since the signal input to the CPE device 5 at this time is amplified by the relay unit 4, it ensures the normal operation of the CPE device 5's WiFi function even when the donor signal strength is weak.

[0064] It should be noted that the control unit 103 can obtain parameter information of the donor signal, such as the reference signal receiving power (RSRP), based on the relay unit 4 and / or the CPE device 5. Then, it can compare the parameter information with the corresponding threshold to determine the signal strength state of the donor signal. When the signal strength state is low, it can switch to the second sub-mode to ensure the normal use of the CPE device 5.

[0065] Please refer to Figure 1 In one specific embodiment, the first switch 101 is a single-pole double-throw switch, and the second switch 102 is a single-pole triple-throw switch.

[0066] Please refer to Figure 1 Preferably, the wireless repeater system described above further includes:

[0067] The first combiner 6, the third input terminal of the second switch 102, and the input terminal of the relay unit 4 are connected to the second output terminal of the first switch 101 through the first combiner 6.

[0068] In this embodiment, by setting the first combiner 6, the donor signal can be distributed to the relay unit 4 and the CPE device 5 so that both can use the donor signal. This is beneficial to improving system efficiency, reducing system cost, and can also help improve signal quality to some extent.

[0069] Please refer to Figure 1 Preferably, the wireless repeater system described above further includes:

[0070] The output terminals of the CPE device 5 and the relay unit 4 are connected to the repeater antenna 3 via the second combiner 7.

[0071] In this embodiment, by setting a second combiner 7, the radio frequency signal passing through the relay unit 4 and the WiFi signal passing through the CPE device 5 can be combined into a single signal for transmission. This simplifies signal transmission and processing, improves system efficiency, reduces system costs, and can also help improve signal quality to some extent.

[0072] In one specific embodiment, the system efficiency can be further improved and the system cost reduced by the cooperation of the first combiner 6 and the second combiner 7.

[0073] Please refer to Figure 1 Preferably, the wireless repeater system described above further includes:

[0074] Coupler 8, the fourth input terminal of the second switch 102 is coupled to the output terminal of the relay unit 4 through the coupler 8.

[0075] In this embodiment, by setting the coupler 8, the relay unit 4 and the CPE device 5 can be connected, and the integrity of the signal can be guaranteed without direct connection. At the same time, impedance matching can be performed to reduce signal reflection, improve energy transmission efficiency, and thus optimize signal quality.

[0076] Please refer to Figure 1 Preferably, the wireless repeater system described above further includes:

[0077] Attenuator 9 is installed on the connection line between the fourth input terminal of the second switch 102 and the output terminal of the relay unit 4.

[0078] In this embodiment, by setting attenuator 9, the signal strength input to CPE device 5 can be adjusted a second time to avoid excessive signal strength after passing through relay unit 4, which could lead to distortion or equipment damage. At the same time, it can also help manage the power level of the system and reduce interference between signals.

[0079] Please refer to Figure 1 Specifically, in the wireless repeater system described above, the CPE device 5 includes: a radio frequency unit 501, a baseband unit 502, and a WIFI unit 503 connected in sequence.

[0080] In this embodiment, the CPE device 5 includes a radio frequency unit 501, a baseband unit 502, and a WIFI unit 503 connected in sequence. The radio frequency unit 501 is used to filter, amplify, and perform analog-to-digital conversion on the received radio frequency signal. The baseband unit 502 is used to demodulate and decode the radio frequency signal to restore it to a baseband signal. The WIFI unit 503 is responsible for re-encoding and modulating the baseband signal onto the WiFi frequency band for transmission and reception.

[0081] It should be noted that the mode switching device 1, especially the control unit 103 in the mode switching device 1, is connected to the baseband unit 502 and is used to obtain the parameter information of the donor signal according to the baseband unit 502.

[0082] Specifically, the wireless repeater system described above also includes a power management unit for supplying power to the wireless repeater system.

[0083] In this embodiment, the wireless repeater system also includes a power management unit for supplying power to the wireless repeater system. The power management unit can be electrically connected to each of the above-mentioned electrical devices (including but not limited to CPE devices, repeater units, etc.) and supply them with power to ensure the normal operation of the entire wireless repeater system.

[0084] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A wireless repeater system, characterized in that, include: The device includes a mode switching device (1), a donor antenna (2), a retransmission antenna (3), a relay unit (4) for amplifying radio frequency signals, and a customer pre-installed equipment (CPE) device (5) for converting radio frequency signals and WiFi signals. The donor antenna (2) and the repeater antenna (3) are connected via the CPE device (5) and / or the relay unit (4); The mode switching device (1) is connected to the relay unit (4) and the CPE device (5) respectively. The mode switching device (1) has a first mode, a second mode and a third mode. In the first mode, the donor antenna (2) and the retransmission antenna (3) are connected through the CPE device (5). In the second mode, the donor antenna (2) and the retransmission antenna (3) are connected through the relay unit (4). In the third mode, the donor antenna (2) and the retransmission antenna (3) are connected through the CPE device (5) and the relay unit (4).

2. The wireless repeater system according to claim 1, characterized in that, The third mode includes the first sub-mode and the second sub-mode; In the first sub-mode, the donor antenna (2) and the retransmission antenna (3) are connected by the relay unit (4) and the CPE device (5) in parallel. In the second sub-mode, the donor antenna (2), the relay unit (4), the CPE device (5) and the retransmission antenna (3) are connected in sequence, and the output terminal of the relay unit (4) is connected to the retransmission antenna (3).

3. The wireless repeater system according to claim 2, characterized in that, The mode switching device (1) includes: a first switch (101), a second switch (102) and a control unit (103). The control unit (103) is connected to the control terminals of the first switch (101) and the second switch (102), and is connected to the relay unit (4) and the CPE device (5). Wherein, the first input terminal of the first switch (101) is connected to the donor antenna (2), the first output terminal of the first switch (101) is connected to the second switch (102), and the second output terminal of the first switch (101) is connected to the second switch (102) and the relay unit (4); The second input terminal of the second switch (102) is connected to the first output terminal of the first switch (101), the third input terminal of the second switch (102) is connected to the first output terminal of the first switch (101), the fourth input terminal of the second switch (102) is connected to the output terminal of the relay unit (4), and the third output terminal of the second switch (102) is connected to the CPE device (5). In the first mode, the first switch (101) connects the first input terminal and the first output terminal, and the second switch (102) connects the second input terminal and the third output terminal; In the second mode, the first switch (101) connects the first input terminal and the second output terminal, and the second switch (102) connects the second input terminal and the third output terminal; In the first sub-mode, the first switch (101) connects the first input terminal and the second output terminal, and the second switch (102) connects the third input terminal and the third output terminal; In the second sub-mode, the first switch (101) connects the first input terminal and the second output terminal, and the second switch (102) connects the fourth input terminal and the third output terminal.

4. The wireless repeater system according to claim 3, characterized in that, Also includes: The first combiner (6), the third input terminal of the second switch (102) and the input terminal of the relay unit (4) are connected to the second output terminal of the first switch (101) through the first combiner (6).

5. The wireless repeater system according to claim 3 or 4, characterized in that, Also includes: The output terminals of the CPE device (5) and the relay unit (4) are connected to the repeater antenna (3) via the second combiner (7).

6. The wireless repeater system according to claim 3, characterized in that, Also includes: The fourth input terminal of the second switch (102) is coupled to the output terminal of the relay unit (4) through the coupler (8).

7. The wireless repeater system according to claim 3 or 6, characterized in that, Also includes: Attenuator (9) is provided on the connection line between the fourth input terminal of the second switch (102) and the output terminal of the relay unit (4).

8. The wireless repeater system according to claim 1, characterized in that, The CPE device (5) includes a radio frequency unit (501), a baseband unit (502), and a WIFI unit (503) connected in sequence.

9. The wireless repeater system according to claim 1, characterized in that, Also includes: A power management unit used to power wireless repeater systems.

10. The wireless repeater system according to claim 3, characterized in that, The first switch (101) is a single-pole double-throw switch, and the second switch (102) is a single-pole triple-throw switch.

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