Fault detection method and device of repeater system, storage medium and electronic device

Abstract

The invention discloses a fault detection method and device of a repeater system, a storage medium and an electronic device. The method comprises the following steps: detecting whether an antenna unit meets a test condition at present; when it is detected that the antenna unit currently meets the test condition, the first loopback switch is controlled to be in an on state, and a target test signal is sent to the first signal transceiver through the first hardware link; receiving a first test signal returned by the first loopback switch, and detecting a first distortion parameter between the first test signal and the target test signal; when it is detected that the first distortion parameter is larger than the target parameter threshold value, it is determined that the connection state of the first hardware link in the repeater system is the abnormal connection state, and by adopting the technical scheme, the problem that in the related technology, the fault detection efficiency of the repeater system is low is solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for fault detection of a repeater system, a storage medium and an electronic device. Background Art

[0002] In wireless communication systems, repeaters play a vital role. They receive signals from base stations, amplify them, and then send them out to expand the coverage of wireless signals. Repeater systems are usually composed of antenna units and radio frequency units, which are connected by optical fibers or other transmission media to achieve long-distance transmission of signals.

[0003] In the existing repeater system, in order to ensure the stability and reliability of signal transmission, the current and voltage of key components in the system are usually monitored. This monitoring method can promptly detect hardware faults that directly affect the current and voltage, such as power supply problems, poor connections, or damage to certain key components. When these components have problems, the network management platform can receive alarm signals and handle them. However, most hardware link failures do not directly affect the current and voltage. For these hardware link failures, this method is often difficult to monitor. Usually, the maintenance personnel will not notice it until the repeater function is abnormal, which brings a bad experience to users. At the same time, even if the maintenance personnel notice the abnormal function of the repeater, they cannot quickly locate the abnormal hardware link of the repeater, because the antenna unit and the radio frequency unit included in the repeater are often far apart, and multiple radio frequency units are deployed in a dispersed manner. In addition, the hardware links in the antenna unit and the radio frequency unit are complex, and manual inspection one by one will take a lot of time.

[0004] In view of the problems in the related art such as low fault detection efficiency of the repeater system, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present application provide a method and device for fault detection of a repeater system, a storage medium and an electronic device, so as to at least solve the problem of low fault detection efficiency of the repeater system in the related art.

[0006] According to an embodiment of the present application, a method for fault detection of a repeater system is provided. An antenna unit is deployed in the repeater system. A first signal transceiver and a first processor are deployed in the antenna unit. The first signal transceiver is connected to the first processor via a first hardware link. A first loopback switch is also deployed on the first hardware link. The method is applied to the first processor. The method includes:

[0007] Detecting whether the antenna unit currently meets the test condition;

[0008] When it is detected that the antenna unit currently meets the test condition, control the first loopback switch to be in an on state, and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the on state is used to transmit the test signal received by the first signal transceiver back to the first processor;

[0009] receiving a first test signal returned by the first loopback switch, and detecting a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger first distortion parameter is, a larger distortion rate between the first test signal and the target test signal is;

[0010] In the case where it is detected that the first distortion parameter is greater than a target parameter threshold, it is determined that the connection state of the first hardware link in the repeater system is an abnormal connection state.

[0011] Optionally, a signal receiving interface is further deployed in the antenna unit, the repeater system is used to receive a signal from a base station through the signal receiving interface, the signal receiving interface is connected to the first signal transceiver through a second hardware link, a second loopback switch is further deployed on the second hardware link, and after detecting a first distortion parameter between the first test signal and the target test signal, the method further includes:

[0012] In the case where it is detected that the first distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the first hardware link in the repeater system is a normal connection state;

[0013] Controlling the first loopback switch to be in a closed state and the second loopback switch to be in an open state, and sending the target test signal to the signal receiving interface through the first hardware link and the second hardware link, wherein the second loopback switch in the open state is used to transmit the test signal received by the signal receiving interface back to the first processor;

[0014] receiving a second test signal returned by the second loopback switch, and detecting a second distortion parameter between the second test signal and the target test signal, wherein the second distortion parameter is used to indicate a distortion rate between the second test signal and the target test signal, and a larger second distortion parameter is, a larger distortion rate between the second test signal and the target test signal is;

[0015] In the case where it is detected that the second distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the second hardware link in the repeater system is an abnormal connection state.

[0016] Optionally, the detecting whether the antenna unit currently meets a test condition includes:

[0017] Detecting a first time interval between the current moment and the last fault detection time of the antenna unit;

[0018] In the case where the first time interval is greater than a first duration threshold, detecting whether the antenna unit is currently receiving an external service signal, wherein the external service signal is a service signal sent by a device other than the repeater system;

[0019] In the case where it is detected that the antenna unit does not currently receive the external service signal, it is determined that the antenna unit currently meets the test condition.

[0020] Optionally, before sending the target test signal to the first signal transceiver through the first hardware link, the method further includes:

[0021] Detecting a signal frequency range of an external service signal that the antenna unit is allowed to receive, and obtaining a first signal frequency range, wherein the external service signal is a service signal sent by a device other than the repeater system;

[0022] A test signal of a second signal frequency is generated as the target test signal, wherein the second signal frequency is a signal frequency outside the range of the first signal frequency.

[0023] Optionally, a radio frequency unit is deployed in the repeater system, a second processor and a second signal transceiver are deployed in the radio frequency unit, the second processor is connected to the second signal transceiver through a third hardware link, a third loopback switch is also deployed on the third hardware link, and the method is applied to the second processor, and the method includes:

[0024] Detecting whether the radio frequency unit currently meets the test condition;

[0025] When it is detected that the RF unit currently meets the test condition, control the third loopback switch to be in an on state, and send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the on state is used to transmit the test signal received by the second signal transceiver back to the second processor;

[0026] receiving a third test signal returned by the third loopback switch, and detecting a third distortion parameter between the third test signal and the reference test signal, wherein the third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal, and the larger the third distortion parameter, the larger the distortion rate between the third test signal and the reference test signal;

[0027] In the case where it is detected that the third distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the third hardware link in the repeater system is an abnormal connection state.

[0028] Optionally, a signal amplifier is further deployed in the radio frequency unit, and the signal amplifier is connected to the second signal transceiver through a fourth hardware link. A fourth loopback switch is also deployed on the fourth hardware link. After detecting a third distortion parameter between the third test signal and the reference test signal, the method further includes:

[0029] In the case where it is detected that the third distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is a normal connection state;

[0030] Controlling the third loopback switch to be in a closed state and the fourth loopback switch to be in an open state, and sending the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fourth loopback switch in the open state is used to transmit the test signal received by the signal amplifier back to the second processor;

[0031] receiving a fourth test signal returned by the fourth loopback switch, and detecting a fourth distortion parameter between the fourth test signal and the reference test signal, wherein the fourth distortion parameter is used to indicate a distortion rate between the fourth test signal and the reference test signal, and the larger the fourth distortion parameter, the larger the distortion rate between the fourth test signal and the reference test signal;

[0032] In the case where it is detected that the fourth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the fourth hardware link in the repeater system is an abnormal connection state.

[0033] Optionally, a fifth loopback switch is further disposed on the signal amplifier, and after detecting a fourth distortion parameter between the fourth test signal and the reference test signal, the method further includes:

[0034] In the case where it is detected that the fourth distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the fourth hardware link in the repeater system is a normal connection state;

[0035] Control the third loopback switch and the fourth loopback switch to be in a closed state, and the fifth loopback switch to be in an open state, and send the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fifth loopback switch in the open state is used to transmit the test signal sent outward by the signal amplifier back to the second processor;

[0036] receiving a fifth test signal returned by the fifth loopback switch, and detecting a fifth distortion parameter between the fifth test signal and the reference test signal, wherein the fifth distortion parameter is used to indicate a distortion rate between the fifth test signal and the reference test signal, and the larger the fifth distortion parameter, the larger the distortion rate between the fifth test signal and the reference test signal;

[0037] In the case where it is detected that the fifth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the signal amplifier in the repeater system is an abnormal connection state.

[0038] According to another embodiment of the embodiment of the present application, a fault detection device of a repeater system is further provided. An antenna unit is deployed in the repeater system, a first signal transceiver and a first processor are deployed in the antenna unit, the first signal transceiver is connected to the first processor through a first hardware link, and a first loopback switch is also deployed on the first hardware link. The device is applied to the first processor, and the device includes:

[0039] A first detection module, used to detect whether the antenna unit currently meets the test condition;

[0040] a first control module, configured to control the first loopback switch to be in an on state and send a target test signal to the first signal transceiver through the first hardware link when detecting that the antenna unit currently meets the test condition, wherein the first loopback switch in the on state is configured to transmit the test signal received by the first signal transceiver back to the first processor;

[0041] a first receiving module, configured to receive a first test signal returned by the first loopback switch, and detect a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger the first distortion parameter, a larger the distortion rate between the first test signal and the target test signal;

[0042] A first determination module is used to determine that the connection state of the first hardware link in the repeater system is an abnormal connection state when it is detected that the first distortion parameter is greater than a target parameter threshold. According to another aspect of the embodiment of the present application, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program is configured to execute the fault detection method of the repeater system when running.

[0043] According to another aspect of the embodiment of the present application, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the fault detection method of the repeater system through the computer program.

[0044] In an embodiment of the present application, a fault detection method for a repeater system is proposed. An antenna unit is deployed in the repeater system. A first signal transceiver and a first processor are deployed in the antenna unit. The first signal transceiver is connected to the first processor via a first hardware link. A first loopback switch is also deployed on the first hardware link. The method is applied to the first processor. The first processor first detects whether the antenna unit currently meets the test conditions. Then, when it is detected that the antenna unit currently meets the test conditions, the first loopback switch is controlled to be in an on state, and a target test signal is sent to the first signal transceiver via the first hardware link. The first loopback switch in the on state can transmit the test signal received by the first signal transceiver back to the first processor. Then, the first test signal returned by the first loopback switch is received, and a first distortion between the first test signal and the target test signal is detected. Parameter, the first distortion parameter can indicate the distortion rate between the first test signal and the target test signal. The larger the first distortion parameter, the larger the distortion rate between the first test signal and the target test signal. Finally, when it is detected that the first distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the first hardware link in the repeater system is an abnormal connection state. In the above manner, the entire hardware link of the repeater system is in a monitoring state. By detecting the distortion rate between the target test signals sent and received in the hardware link, it is determined whether the part of the hardware link has a fault, thereby avoiding the current and voltage monitoring in the prior art that cannot detect the hardware fault that does not affect the current and voltage. At the same time, this solution can also automatically detect the connection state of the hardware link in the antenna unit of the repeater system, and timely locate the hardware link in the abnormal connection state without the need for manual inspection by operation and maintenance personnel one by one. The above technical solution solves the problems of low fault detection efficiency of the repeater system in the related technology, and achieves the technical effect of improving the fault detection efficiency of the repeater system. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 It is a hardware environment schematic diagram of a fault detection method of a repeater system according to an embodiment of the present application;

[0048] Figure 2 is a flow chart of a method for detecting a fault of an antenna unit in a repeater system according to an embodiment of the present application;

[0049] Figure 3 is a schematic diagram of a first hardware link detection structure according to an embodiment of the present application;

[0050] Figure 4 is a schematic diagram of a second hardware link detection structure according to an embodiment of the present application;

[0051] Figure 5 is a flow chart of a method for detecting a fault of a radio frequency unit of a repeater system according to an embodiment of the present application;

[0052] Figure 6 is a schematic diagram of a third hardware link detection structure according to an embodiment of the present application;

[0053] Figure 7 is a schematic diagram of a fourth hardware link detection structure according to an embodiment of the present application;

[0054] Figure 8 is a schematic diagram of a fifth hardware link detection structure according to an embodiment of the present application;

[0055] Fig. 9 is a schematic diagram of a fault detection process of a repeater system according to an embodiment of the present application;

[0056] Fig.10 It is a structural block diagram of a fault detection device for a repeater system according to an embodiment of the present application. DETAILED DESCRIPTION

[0057] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0058] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0059] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a device terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 FIG. 1 is a schematic diagram of the hardware environment of a method for detecting a fault in a repeater system according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or more ( Figure 1 Only one is shown in the figure) processor 102 (processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. In an exemplary embodiment, the computer terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Equivalent functions or comparisons shown Figure 1 A different configuration with more features is shown.

[0060] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for sending message push in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0061] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0062] In this embodiment, a method for detecting a fault in a repeater system is provided. Figure 2 The present invention is a flowchart of a method for detecting a fault of an antenna unit in a repeater system according to an embodiment of the present application. The repeater system is provided with an antenna unit, wherein a first signal transceiver and a first processor are provided in the antenna unit, wherein the first signal transceiver is connected to the first processor via a first hardware link, and a first loopback switch is also provided on the first hardware link. The method is applied to the first processor, such as Figure 2 As shown, the process includes the following steps:

[0063] Step S202, detecting whether the antenna unit currently meets the test condition;

[0064] Step S204, when it is detected that the antenna unit currently meets the test condition, control the first loopback switch to be in an on state, and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the on state is used to transmit the test signal received by the first signal transceiver back to the first processor;

[0065] Step S206, receiving a first test signal returned by the first loopback switch, and detecting a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger first distortion parameter is, a larger distortion rate between the first test signal and the target test signal is;

[0066] Step S208: When it is detected that the first distortion parameter is greater than a target parameter threshold, determining that the connection state of the first hardware link in the repeater system is an abnormal connection state.

[0067] Optionally, in this embodiment, Figure 3 is a schematic diagram of a first hardware link detection structure according to an embodiment of the present application, such as Figure 3 As shown, the antenna unit deployed in the repeater system may be, but not limited to, a near-end unit AU (Antenna Unit); the first signal transceiver and the first processor deployed in the antenna unit may be, but not limited to, a near-end signal transceiver (AU TRANSCEIVER) and an AU FPGA (Field-Programmable Gate Array); the first hardware link may be, but not limited to, a part of the hardware link that needs to be self-detected in the repeater system, such as a B link; the first loopback switch deployed on the first hardware link may be a part of the hardware link used for self-detection in the repeater system, and may be, but not limited to, a physical device or a logical function, used to close the signal path so that the signal can return to the sending point, such as a B switch.

[0068] Optionally, in this embodiment, the content of detecting whether the antenna unit meets the test conditions may include but is not limited to: checking the status, signal strength and connection status of the antenna unit, etc., to ensure that the antenna unit can perform effective self-detection.

[0069] Optionally, in this embodiment, the target test signal can be but is not limited to a modulated signal that can be used for self-detection, so as to effectively detect the integrity and performance of the hardware link, including: a fixed-frequency sine wave, a pseudo-random binary sequence, an orthogonal amplitude modulation signal, and an orthogonal frequency division multiplexing signal, etc.

[0070] Optionally, in this embodiment, if Figure 3As shown, the first processor, i.e., AU FPGA, controls the first loopback switch, i.e., B switch, to be in the on state after confirming that the antenna unit AU meets the test conditions. In this embodiment, the B switch may have but is not limited to the following functions: in the on state, the target test signal may be sent to the first signal transceiver, i.e., AU TRANSCEIVER, through the B link; and the test signal received by the AU TRANSCEIVER is transmitted back to the AUFPGA through the same B link.

[0071] Optionally, in this embodiment, the test signal returned by the B switch received by the first processor, i.e., the AU FPGA, is used to determine the first test signal, and the distortion rate between the target test signal sent by the AU FPGA and the first test signal is detected, and the distortion rate is determined as a first distortion parameter. The first distortion parameter can be, but is not limited to, obtained by calculating the degree of distortion of the signal during the modulation process, such as the error vector magnitude (EVM) value. The larger the EVM value, the greater the distortion rate between the target test signal and the first test signal.

[0072] Optionally, in the present embodiment, the method for determining whether the connection status of the first hardware link in the repeater system is an abnormal connection status may be, but is not limited to, as follows: assuming that the target parameter threshold is set to 5%, when the first distortion parameter is detected to be 7%, that is, the first distortion parameter is detected to be greater than the target parameter threshold, then the connection status of the first hardware link of the repeater system is determined to be an abnormal connection status; when the first distortion parameter is detected to be 4%, that is, the first distortion parameter is detected to be less than the target parameter threshold, then the connection status of the first hardware link of the repeater system is determined to be a normal connection status.

[0073] In an exemplary embodiment, a signal receiving interface is further deployed in the antenna unit, the repeater system is used to receive a signal from a base station through the signal receiving interface, the signal receiving interface is connected to the first signal transceiver through a second hardware link, and a second loopback switch is further deployed on the second hardware link. After detecting a first distortion parameter between the first test signal and the target test signal, the method further includes:

[0074] In the case where it is detected that the first distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the first hardware link in the repeater system is a normal connection state;

[0075] Controlling the first loopback switch to be in a closed state and the second loopback switch to be in an open state, and sending the target test signal to the signal receiving interface through the first hardware link and the second hardware link, wherein the second loopback switch in the open state is used to transmit the test signal received by the signal receiving interface back to the first processor;

[0076] receiving a second test signal returned by the second loopback switch, and detecting a second distortion parameter between the second test signal and the target test signal, wherein the second distortion parameter is used to indicate a distortion rate between the second test signal and the target test signal, and a larger second distortion parameter is, a larger distortion rate between the second test signal and the target test signal is;

[0077] In the case where it is detected that the second distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the second hardware link in the repeater system is an abnormal connection state.

[0078] Optionally, in this embodiment, the signal receiving interface may be, but is not limited to, a connector with good conductivity and shielding effect, including: an N-Type Connector.

[0079] Optionally, in this embodiment, Figure 4 is a schematic diagram of a second hardware link detection structure according to an embodiment of the present application, such as Figure 4 As shown, an N head is used to connect an external signal source such as an RRU (Remote Radio Unit) to the AU TRANSCEIVER of the antenna unit of the repeater system. The N head is connected to the AU TRANSCEIVER through a second hardware link. The second hardware link can be but is not limited to a part of the hardware link that needs to perform self-detection in the repeater system, such as an A link; the second loopback switch deployed on the second hardware link is a switch with the same function as the first loopback switch, such as an A switch.

[0080] Optionally, in this embodiment, if Figure 4 As shown, after completing the first hardware link self-detection, the first processor, i.e., AU FPGA, controls the first loopback switch, i.e., switch B, to a closed state, and controls the second loopback switch, i.e., switch A, to an open state. In this embodiment, switch A may have but is not limited to the following functions: in the open state, the target test signal may be sent to the signal receiving interface, i.e., N head, through the B link and the A link; and the test signal received by the N head may be transmitted back to the AU FPGA through the same A link and the B link.

[0081] Optionally, in this embodiment, the test signal returned by the A switch received by the first processor, i.e., the AU FPGA, is used to determine the second test signal, and the distortion rate between the target test signal sent by the AU FPGA and the second test signal is detected, and the distortion rate is determined as the second distortion parameter. The second distortion parameter is similar to the first distortion parameter and will not be described again here.

[0082] In an exemplary embodiment, the detection of whether the antenna unit currently meets the test conditions may include, but is not limited to, the following methods: detecting a first time interval between the current moment and the last fault detection time of the antenna unit; when the first time interval is greater than a first duration threshold, detecting whether the antenna unit is currently receiving an external service signal, wherein the external service signal is a service signal sent by a device other than the repeater system; and when it is detected that the antenna unit is not currently receiving the external service signal, determining that the antenna unit currently meets the test conditions.

[0083] Optionally, in this embodiment, the method for detecting whether the antenna unit currently meets the test conditions may be but is not limited to: assuming that the first duration threshold is set to 30s, it is detected that the time interval between the current moment and the last fault detection time of the antenna unit is 40s, and the time interval is determined as the first time interval; the first time interval is compared with the first duration threshold, and when the comparison result is that the first time interval is greater than the first duration threshold, that is, 40s is greater than 30s, it is detected whether the antenna unit is receiving service signals sent by equipment other than the repeater system, and when it is determined that the antenna unit does not receive external service signals, it is determined that the detected antenna unit meets the test conditions.

[0084] In an exemplary embodiment, before sending the target test signal to the first signal transceiver through the first hardware link, the method also includes: detecting a signal frequency range of an external business signal allowed to be received by the antenna unit to obtain a first signal frequency range, wherein the external business signal is a business signal sent by a device other than the repeater system; and generating a test signal of a second signal frequency as the target test signal, wherein the second signal frequency is a signal frequency outside the first signal frequency range.

[0085] Optionally, in this embodiment, assuming that it is detected that the signal frequency range of the external service signal allowed to be received by the antenna unit is 600MHz to 1800MHz, and the frequency range is determined to be the first signal frequency range, then the frequency of the target test signal, that is, the second signal frequency should be a frequency outside the first signal frequency range, such as 500MHz or 2000MHz.

[0086] In this embodiment, a method for detecting a fault in a repeater system is also provided. Figure 5 The present invention is a flowchart of a method for detecting a fault of a radio frequency unit of a repeater system according to an embodiment of the present application. A radio frequency unit is deployed in the repeater system, a second processor and a second signal transceiver are deployed in the radio frequency unit, the second processor is connected to the second signal transceiver via a third hardware link, a third loopback switch is also deployed on the third hardware link, and the method is applied to the second processor, such as Figure 5 As shown, the process includes the following steps:

[0087] Step S302, detecting whether the RF unit currently meets the test condition;

[0088] Step S304: when it is detected that the RF unit currently meets the test condition, control the third loopback switch to be in an on state, and send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the on state is used to transmit the test signal received by the second signal transceiver back to the second processor;

[0089] Step S306, receiving a third test signal returned by the third loopback switch, and detecting a third distortion parameter between the third test signal and the reference test signal, wherein the third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal, and the larger the third distortion parameter, the larger the distortion rate between the third test signal and the reference test signal;

[0090] Step S308: When it is detected that the third distortion parameter is greater than the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is an abnormal connection state.

[0091] Optionally, in this embodiment, Figure 6 is a schematic diagram of a third hardware link detection structure according to an embodiment of the present application, such as Figure 6 As shown, the radio frequency unit deployed in the repeater system may be, but not limited to, a remote unit RU (RadioUnit); the second signal transceiver and the second processor deployed in the radio frequency unit may be, but not limited to, a near-end signal transceiver (RU TRANSCEIVER) and a RU FPGA; the third hardware link may be, but not limited to, a part of the hardware link that needs to perform self-detection in the repeater system, such as a C link; the third loopback switch deployed on the third hardware link is similar to the first loopback switch, and may be a C switch.

[0092] Optionally, in this embodiment, if Figure 6As shown, the second processor, i.e., RU FPGA, after confirming that the radio frequency unit RU meets the test conditions, will control the third loopback switch, i.e., C switch, to the on state. In this embodiment, the C switch may have but is not limited to the following functions: in the on state, the target test signal can be sent to the second signal transceiver, i.e., RU TRANSCEIVER, through the C link; the test signal received by the RU TRANSCEIVER is transmitted back to the RUFPGA through the same C link.

[0093] Optionally, in this embodiment, the step of determining the third distortion parameter is similar to that of the first distortion parameter, which will not be described again.

[0094] In an exemplary embodiment, a signal amplifier is also deployed in the radio frequency unit, and the signal amplifier is connected to the second signal transceiver through a fourth hardware link. A fourth loopback switch is also deployed on the fourth hardware link. After detecting the third distortion parameter between the third test signal and the reference test signal, the method further includes: when it is detected that the third distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is a normal connection state; controlling the third loopback switch to be in a closed state and the fourth loopback switch to be in an open state, and sending a signal to the signal amplifier through the third hardware link and the fourth hardware link. The reference test signal is sent, wherein the fourth loopback switch placed in the on state is used to transmit the test signal received by the signal amplifier back to the second processor; the fourth test signal returned by the fourth loopback switch is received, and a fourth distortion parameter between the fourth test signal and the reference test signal is detected, wherein the fourth distortion parameter is used to indicate the distortion rate between the fourth test signal and the reference test signal, and the larger the fourth distortion parameter is, the larger the distortion rate between the fourth test signal and the reference test signal is; when it is detected that the fourth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the fourth hardware link in the repeater system is an abnormal connection state.

[0095] Optionally, in this embodiment, Figure 7 is a schematic diagram of a fourth hardware link detection structure according to an embodiment of the present application, such as Figure 7 As shown, the radio frequency unit RU is also deployed with a signal amplifier, including but not limited to a power amplifier (PA). The PA is connected to the RU TRANSCEIVER via a fourth hardware link. The fourth hardware link may be but is not limited to being a part of the hardware link that needs to perform self-detection in the repeater system, such as a D link. The fourth loopback switch deployed on the fourth hardware link is a switch with the same function as the first loopback switch, such as a D switch.

[0096] Optionally, in this embodiment, if Figure 7 As shown, after completing the third hardware link self-detection, the second processor, i.e., the RU FPGA, controls the third loopback switch, i.e., the C switch, to the closed state, and controls the fourth loopback switch, i.e., the D switch, to the open state. In this embodiment, the D switch may have but is not limited to the following functions: in the open state, the target test signal may be sent to the signal amplifier, i.e., the PA, through the C link and the D link; and the test signal received by the PA is transmitted back to the RU FPGA through the same D link and the C link.

[0097] Optionally, in this embodiment, the step of determining the fourth distortion parameter is similar to that of the first distortion parameter, which will not be described again.

[0098] In an exemplary embodiment, a fifth loopback switch is also deployed on the signal amplifier. After detecting the fourth distortion parameter between the fourth test signal and the reference test signal, the method further includes: when detecting that the fourth distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the fourth hardware link in the repeater system is a normal connection state; controlling the third loopback switch and the fourth loopback switch to be in a closed state, and the fifth loopback switch to be in an open state, and sending the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the switch The fifth loopback switch in the on state is used to transmit the test signal sent outward by the signal amplifier back to the second processor; receive the fifth test signal returned by the fifth loopback switch, and detect the fifth distortion parameter between the fifth test signal and the reference test signal, wherein the fifth distortion parameter is used to indicate the distortion rate between the fifth test signal and the reference test signal, and the larger the fifth distortion parameter is, the larger the distortion rate between the fifth test signal and the reference test signal is; when it is detected that the fifth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the signal amplifier in the repeater system is an abnormal connection state.

[0099] Optionally, in this embodiment, Figure 8 is a schematic diagram of a fifth hardware link detection structure according to an embodiment of the present application, such as Figure 8 As shown, the signal amplifier PA is further deployed with a fifth loopback switch, namely, an E switch. The fifth hardware link may be, but is not limited to, a part of the hardware link that needs to be self-detected in the repeater system, such as an E link.

[0100] Optionally, in this embodiment, if Figure 8As shown, after completing the fourth hardware link self-detection, the second processor, i.e., RU FPGA, controls the third loopback switch and the fourth loopback switch, i.e., C switch and D switch, to the closed state, and controls the fifth loopback switch, i.e., E switch, to the open state. In this embodiment, the E switch may have but is not limited to the following functions: in the open state, the target test signal may be sent outward to an external component through the C link, the D link and the E link via the RU TRANSCEIVER and the PA; and the test signal received by the external component may be transmitted back to the RUFPGA through the same E link, the D link and the C link.

[0101] Optionally, in this embodiment, the step of determining the fifth distortion parameter is similar to that of the first distortion parameter, which will not be described again.

[0102] In this embodiment, a method for detecting a fault in a repeater system is provided. Fig. 9 is a schematic diagram of a fault detection process of a repeater system according to an embodiment of the present application, such as Fig. 9As shown, the antenna unit AU and the radio frequency unit RU are deployed in the repeater system. The interface OP connects the antenna unit and the radio frequency unit. The first processor AU FPGA and the first signal transceiver AU TRANSCEIVE are deployed in the antenna unit. The N head is connected to AU TRANSCEIVE through the second hardware link A link, and is connected to external sources such as RRU. The second processor RU FPGA and the second signal transceiver RUTRANSCEIVE are deployed in the radio frequency unit. The signal amplifier PA is connected to RU TRANSCEIVE through the fourth hardware link D link, and is connected to external components through the fifth hardware link E link. Fault detection is mainly divided into five parts: the first hardware link (A link), the second hardware link (B link), the third hardware link (C link), the fourth hardware link (D link) and the fifth hardware link (E link). For fault detection on the antenna unit side, firstly, the B link is detected for faults. After confirming that the antenna unit AU meets the test conditions, the AU FPGA will control the B switch to be in the on state. When the B switch is in the on state, the target test signal is sent to the AU TRANSCEIVER through the B link, and the test signal received by the AU TRANSCEIVER is then transmitted back to the AUFPGA through the same B link. Then, the first distortion parameter EVM between the target test signal and the first test signal is calculated, and the target parameter threshold and the first distortion parameter are compared. When the first distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the B link is an abnormal connection state; then the A link fault detection is performed, and the B switch is controlled to be in the off state and the A switch is in the on state. When the A switch is in the on state, the target test signal can be sent to the N head through the B link and the A link, and the test signal received by the N head is transmitted back to the AU FPGA through the same A link and the B link, and then the second distortion parameter is calculated. Similarly, the fault detection sequence for the RF unit side is the C link, the D link, and the E link. The detection steps are similar to the detection steps on the antenna unit side, and will not be repeated here.

[0103] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0104] Fig.101 is a structural block diagram of a fault detection device for a repeater system according to an embodiment of the present application; an antenna unit is deployed in the repeater system, a first signal transceiver and a first processor are deployed in the antenna unit, the first signal transceiver is connected to the first processor via a first hardware link, a first loopback switch is also deployed on the first hardware link, and the device is applied to the first processor, such as Fig.10 As shown, the device comprises:

[0105] A first detection module 1002 is used to detect whether the antenna unit currently meets the test condition;

[0106] A first control module 1004 is used to control the first loopback switch to be in an on state and send a target test signal to the first signal transceiver through the first hardware link when it is detected that the antenna unit currently meets the test condition, wherein the first loopback switch in the on state is used to transmit the test signal received by the first signal transceiver back to the first processor;

[0107] A first receiving module 1006 is used to receive a first test signal returned by the first loopback switch, and detect a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and the larger the first distortion parameter is, the larger the distortion rate between the first test signal and the target test signal is;

[0108] The first determination module 1008 is configured to determine that the connection state of the first hardware link in the repeater system is an abnormal connection state when it is detected that the first distortion parameter is greater than a target parameter threshold.

[0109] In an exemplary embodiment, the apparatus further comprises:

[0110] A second determination module is used for a signal receiving interface also deployed in the antenna unit, the repeater system is used to receive a signal from a base station through the signal receiving interface, the signal receiving interface is connected to the first signal transceiver through a second hardware link, a second loopback switch is also deployed on the second hardware link, after the first distortion parameter between the first test signal and the target test signal is detected, when it is detected that the first distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the first hardware link in the repeater system is a normal connection state;

[0111] a second control module, configured to control the first loopback switch to be in a closed state and the second loopback switch to be in an open state, and to send the target test signal to the signal receiving interface through the first hardware link and the second hardware link, wherein the second loopback switch in the open state is configured to transmit the test signal received by the signal receiving interface back to the first processor;

[0112] a first receiving module, configured to receive a second test signal returned by the second loopback switch, and detect a second distortion parameter between the second test signal and the target test signal, wherein the second distortion parameter is used to indicate a distortion rate between the second test signal and the target test signal, and a larger the second distortion parameter, a larger the distortion rate between the second test signal and the target test signal;

[0113] The third determination module is used to determine that the connection state of the second hardware link in the repeater system is an abnormal connection state when it is detected that the second distortion parameter is greater than the target parameter threshold.

[0114] In an exemplary embodiment, the first detection module includes:

[0115] A first detection unit, used to detect a first time interval between a current moment and a last fault detection time of the antenna unit;

[0116] A second detection unit is used to detect whether the antenna unit is currently receiving an external service signal when the first time interval is greater than a first duration threshold, wherein the external service signal is a service signal sent by a device other than the repeater system;

[0117] The first determination unit is configured to determine that the antenna unit currently meets the test condition when it is detected that the antenna unit currently does not receive the external service signal.

[0118] In an exemplary embodiment, the apparatus further comprises:

[0119] A second detection module is used to detect a signal frequency range of an external service signal that the antenna unit is allowed to receive before sending a target test signal to the first signal transceiver through the first hardware link, and obtain a first signal frequency range, wherein the external service signal is a service signal sent by a device other than the repeater system;

[0120] A generating module is used to generate a test signal of a second signal frequency as the target test signal, wherein the second signal frequency is a signal frequency outside the range of the first signal frequency.

[0121] In an exemplary embodiment, a radio frequency unit is deployed in a repeater system, a second processor and a second signal transceiver are deployed in the radio frequency unit, the second processor is connected to the second signal transceiver via a third hardware link, a third loopback switch is also deployed on the third hardware link, and the device is applied to the second processor, and the device includes:

[0122] A third detection module, used to detect whether the radio frequency unit currently meets the test conditions;

[0123] a third control module, configured to control the third loopback switch to be in an on state when it is detected that the RF unit currently meets the test condition, and to send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the on state is used to transmit the test signal received by the second signal transceiver back to the second processor;

[0124] a third receiving module, configured to receive a third test signal returned by the third loopback switch, and detect a third distortion parameter between the third test signal and the reference test signal, wherein the third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal, and the larger the third distortion parameter, the larger the distortion rate between the third test signal and the reference test signal;

[0125] The fourth determination module is used to determine that the connection state of the third hardware link in the repeater system is an abnormal connection state when it is detected that the third distortion parameter is greater than the target parameter threshold.

[0126] In an exemplary embodiment, the apparatus further comprises:

[0127] A second determination unit is used for further deploying a signal amplifier in the radio frequency unit, the signal amplifier is connected to the second signal transceiver via a fourth hardware link, a fourth loopback switch is also deployed on the fourth hardware link, and after detecting a third distortion parameter between the third test signal and the reference test signal, when it is detected that the third distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is a normal connection state;

[0128] a control unit, configured to control the third loopback switch to be in a closed state and the fourth loopback switch to be in an open state, and to send the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fourth loopback switch in the open state is configured to transmit the test signal received by the signal amplifier back to the second processor;

[0129] a receiving unit, configured to receive a fourth test signal returned by the fourth loopback switch, and detect a fourth distortion parameter between the fourth test signal and the reference test signal, wherein the fourth distortion parameter is used to indicate a distortion rate between the fourth test signal and the reference test signal, and the larger the fourth distortion parameter, the larger the distortion rate between the fourth test signal and the reference test signal;

[0130] The third determining unit is used to determine that the connection state of the fourth hardware link in the repeater system is an abnormal connection state when it is detected that the fourth distortion parameter is greater than the target parameter threshold.

[0131] In an exemplary embodiment, the apparatus further comprises:

[0132] A fifth determination module, for a fifth loopback switch also deployed on the signal amplifier, after detecting a fourth distortion parameter between the fourth test signal and the reference test signal, determining that the connection state of the fourth hardware link in the repeater system is a normal connection state when it is detected that the fourth distortion parameter is less than or equal to the target parameter threshold;

[0133] a fourth control module, used for controlling the third loopback switch and the fourth loopback switch to be in a closed state, the fifth loopback switch to be in an open state, and sending the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fifth loopback switch in the open state is used for transmitting the test signal sent outward by the signal amplifier back to the second processor;

[0134] a fourth receiving module, configured to receive a fifth test signal returned by the fifth loopback switch, and detect a fifth distortion parameter between the fifth test signal and the reference test signal, wherein the fifth distortion parameter is used to indicate a distortion rate between the fifth test signal and the reference test signal, and the larger the fifth distortion parameter, the larger the distortion rate between the fifth test signal and the reference test signal;

[0135] The sixth determination module is used to determine that the connection state of the signal amplifier in the repeater system is an abnormal connection state when it is detected that the fifth distortion parameter is greater than the target parameter threshold.

[0136] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0137] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0138] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0139] S1, detecting whether the antenna unit currently meets the test conditions;

[0140] S2, when it is detected that the antenna unit currently meets the test condition, controlling the first loopback switch to be in an on state, and sending a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the on state is used to transmit the test signal received by the first signal transceiver back to the first processor;

[0141] S3, receiving a first test signal returned by the first loopback switch, and detecting a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger first distortion parameter is, a larger distortion rate is between the first test signal and the target test signal;

[0142] S4: When it is detected that the first distortion parameter is greater than a target parameter threshold, determining that the connection state of the first hardware link in the repeater system is an abnormal connection state.

[0143] Optionally, in this embodiment, the processor may also be configured to perform the following steps through a computer program:

[0144] S5, detecting whether the RF unit currently meets the test conditions;

[0145] S6, when it is detected that the RF unit currently meets the test condition, control the third loopback switch to be in an on state, and send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the on state is used to transmit the test signal received by the second signal transceiver back to the second processor;

[0146] S7, receiving a third test signal returned by the third loopback switch, and detecting a third distortion parameter between the third test signal and the reference test signal, wherein the third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal, and a larger the third distortion parameter, a larger the distortion rate between the third test signal and the reference test signal;

[0147] S8, when it is detected that the third distortion parameter is greater than the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is an abnormal connection state.

[0148] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0149] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0150] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0151] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for detecting a fault in a repeater system, characterized in that: An antenna unit is deployed in the repeater system, a first signal transceiver and a first processor are deployed in the antenna unit, the first signal transceiver is connected to the first processor through a first hardware link, a first loopback switch is also deployed on the first hardware link, the method is applied to the first processor, and the method includes: Detecting whether the antenna unit currently meets the test condition; When it is detected that the antenna unit currently meets the test condition, control the first loopback switch to be in an on state, and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the on state is used to transmit the test signal received by the first signal transceiver back to the first processor; receiving a first test signal returned by the first loopback switch, and detecting a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger first distortion parameter is, a larger distortion rate between the first test signal and the target test signal is; In the case where it is detected that the first distortion parameter is greater than a target parameter threshold, it is determined that the connection state of the first hardware link in the repeater system is an abnormal connection state.

2. The method according to claim 1, characterized in that A signal receiving interface is also deployed in the antenna unit, and the repeater system is used to receive a signal from a base station through the signal receiving interface. The signal receiving interface is connected to the first signal transceiver through a second hardware link, and a second loopback switch is also deployed on the second hardware link. After detecting a first distortion parameter between the first test signal and the target test signal, the method further includes: In the case where it is detected that the first distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the first hardware link in the repeater system is a normal connection state; Controlling the first loopback switch to be in a closed state and the second loopback switch to be in an open state, and sending the target test signal to the signal receiving interface through the first hardware link and the second hardware link, wherein the second loopback switch in the open state is used to transmit the test signal received by the signal receiving interface back to the first processor; receiving a second test signal returned by the second loopback switch, and detecting a second distortion parameter between the second test signal and the target test signal, wherein the second distortion parameter is used to indicate a distortion rate between the second test signal and the target test signal, and a larger second distortion parameter is, a larger distortion rate between the second test signal and the target test signal is; In the case where it is detected that the second distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the second hardware link in the repeater system is an abnormal connection state.

3. The method according to claim 1, characterized in that The detecting whether the antenna unit currently meets the test condition includes: Detecting a first time interval between the current moment and the last fault detection time of the antenna unit; In the case where the first time interval is greater than a first duration threshold, detecting whether the antenna unit is currently receiving an external service signal, wherein the external service signal is a service signal sent by a device other than the repeater system; In the case where it is detected that the antenna unit does not currently receive the external service signal, it is determined that the antenna unit currently meets the test condition.

4. The method according to claim 1, characterized in that Before sending the target test signal to the first signal transceiver through the first hardware link, the method further includes: Detecting a signal frequency range of an external service signal that the antenna unit is allowed to receive, and obtaining a first signal frequency range, wherein the external service signal is a service signal sent by a device other than the repeater system; A test signal of a second signal frequency is generated as the target test signal, wherein the second signal frequency is a signal frequency outside the range of the first signal frequency.

5. A method for detecting a fault in a repeater system, characterized in that: A radio frequency unit is deployed in the repeater system, a second processor and a second signal transceiver are deployed in the radio frequency unit, the second processor is connected to the second signal transceiver through a third hardware link, a third loopback switch is also deployed on the third hardware link, and the method is applied to the second processor, and the method includes: Detecting whether the radio frequency unit currently meets the test condition; When it is detected that the RF unit currently meets the test condition, control the third loopback switch to be in an on state, and send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the on state is used to transmit the test signal received by the second signal transceiver back to the second processor; receiving a third test signal returned by the third loopback switch, and detecting a third distortion parameter between the third test signal and the reference test signal, wherein the third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal, and the larger the third distortion parameter, the larger the distortion rate between the third test signal and the reference test signal; In the case where it is detected that the third distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the third hardware link in the repeater system is an abnormal connection state.

6. The method according to claim 5, characterized in that A signal amplifier is further disposed in the radio frequency unit, and the signal amplifier is connected to the second signal transceiver through a fourth hardware link. A fourth loopback switch is also disposed on the fourth hardware link. After detecting a third distortion parameter between the third test signal and the reference test signal, the method further includes: In the case where it is detected that the third distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the third hardware link in the repeater system is a normal connection state; Controlling the third loopback switch to be in a closed state and the fourth loopback switch to be in an open state, and sending the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fourth loopback switch in the open state is used to transmit the test signal received by the signal amplifier back to the second processor; receiving a fourth test signal returned by the fourth loopback switch, and detecting a fourth distortion parameter between the fourth test signal and the reference test signal, wherein the fourth distortion parameter is used to indicate a distortion rate between the fourth test signal and the reference test signal, and the larger the fourth distortion parameter, the larger the distortion rate between the fourth test signal and the reference test signal; In the case where it is detected that the fourth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the fourth hardware link in the repeater system is an abnormal connection state.

7. The method according to claim 6, characterized in that A fifth loopback switch is further disposed on the signal amplifier. After detecting a fourth distortion parameter between the fourth test signal and the reference test signal, the method further includes: In the case where it is detected that the fourth distortion parameter is less than or equal to the target parameter threshold, determining that the connection state of the fourth hardware link in the repeater system is a normal connection state; Control the third loopback switch and the fourth loopback switch to be in a closed state, and the fifth loopback switch to be in an open state, and send the reference test signal to the signal amplifier through the third hardware link and the fourth hardware link, wherein the fifth loopback switch in the open state is used to transmit the test signal sent outward by the signal amplifier back to the second processor; receiving a fifth test signal returned by the fifth loopback switch, and detecting a fifth distortion parameter between the fifth test signal and the reference test signal, wherein the fifth distortion parameter is used to indicate a distortion rate between the fifth test signal and the reference test signal, and the larger the fifth distortion parameter, the larger the distortion rate between the fifth test signal and the reference test signal; In the case where it is detected that the fifth distortion parameter is greater than the target parameter threshold, it is determined that the connection state of the signal amplifier in the repeater system is an abnormal connection state.

8. A fault detection device for a repeater system, characterized in that: include: An antenna unit is deployed in the repeater system, a first signal transceiver and a first processor are deployed in the antenna unit, the first signal transceiver is connected to the first processor through a first hardware link, a first loopback switch is also deployed on the first hardware link, the device is applied to the first processor, and the device includes: A first detection module, used to detect whether the antenna unit currently meets the test condition; a first control module, configured to control the first loopback switch to be in an on state and send a target test signal to the first signal transceiver through the first hardware link when detecting that the antenna unit currently meets the test condition, wherein the first loopback switch in the on state is configured to transmit the test signal received by the first signal transceiver back to the first processor; a first receiving module, configured to receive a first test signal returned by the first loopback switch, and detect a first distortion parameter between the first test signal and the target test signal, wherein the first distortion parameter is used to indicate a distortion rate between the first test signal and the target test signal, and a larger the first distortion parameter, a larger the distortion rate between the first test signal and the target test signal; The first determination module is used to determine that the connection state of the first hardware link in the repeater system is an abnormal connection state when it is detected that the first distortion parameter is greater than a target parameter threshold.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 7 when executed.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 7 through the computer program.

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