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

Abstract

The application 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 the current antenna unit meets the test condition; in the case that it is detected that the current antenna unit meets the test condition, controlling the first loopback switch to be in an open state, and sending a target test signal to the first signal transceiver through the first hardware link; receiving the first test signal returned by the first loopback switch, and detecting the first distortion parameter between the first test signal and the target test signal; in the case that it is detected that the first distortion parameter is greater than the target parameter threshold, determining that the connection state of the first hardware link in the repeater system is an abnormal connection state. By using the technical solution, the problem of low fault detection efficiency of the repeater system in the related art is solved.

Description

TECHNICAL FIELD

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

[0002] In a wireless communication system, a repeater plays a crucial role. It receives the signal sent by the base station, amplifies it, and then sends it out, thereby expanding the coverage of the wireless signal. A repeater system is usually composed of an antenna unit and a radio frequency unit, which are connected through optical fiber or other transmission media to achieve long-distance signal transmission.

[0003] In existing repeater systems, 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 timely detect hardware faults that directly affect the current and voltage, such as power supply problems, poor connections, or damage to some key components. When these components have problems, the network management platform can receive an alarm signal for processing. However, more hardware link faults do not directly affect the current and voltage. For these hardware link faults, it is often difficult to monitor using this method. Usually, it is not until the repeater malfunctions that maintenance personnel realize it, which brings a bad experience to users. At the same time, even if maintenance personnel realize that the repeater is malfunctioning, they cannot quickly locate the abnormal hardware link of the repeater because the antenna unit and the radio frequency unit of the repeater are usually far apart, and multiple radio frequency units are scattered. In addition, the hardware links in the antenna unit and the radio frequency unit are complex, and it will take a lot of time to check them one by one.

[0004] For the problem of low repeater system fault detection efficiency in related technologies, an effective solution has not been proposed. SUMMARY

[0005] Embodiments of the present application provide a repeater system fault detection method and device, a storage medium and an electronic device to at least solve the problem of low repeater system fault detection efficiency in related technologies.

[0006] According to an embodiment of the present application, a repeater system fault detection method is provided. A repeater system is deployed with an antenna unit, the antenna unit is deployed with a first signal transceiver and a first processor, 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 method is applied to the first processor and includes:

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

[0008] in a case where it is detected that the antenna unit currently satisfies the test condition, controlling the first loopback switch to be in an open state, and sending a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the open state is used to return a test signal received by the first signal transceiver to the first processor;

[0009] receiving the 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 the greater the first distortion parameter, the greater the distortion rate between the first test signal and the target test signal;

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

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

[0012] in a 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 return a test signal received by the signal receiving interface 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 the greater the second distortion parameter, the greater the distortion rate between the second test signal and the target test signal;

[0015] in a case where it is detected that the second distortion parameter is greater than the target parameter threshold, determining that a 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 satisfies a test condition comprises:

[0017] detecting a first time interval from a last time of failure detection of the antenna unit to a current time;

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

[0019] in a case where it is detected that the antenna unit is not currently receiving the alien service signal, determining that the antenna unit currently satisfies the test condition.

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

[0021] detecting a signal frequency range of an alien service signal allowed to be received by the antenna unit, to obtain a first signal frequency range, wherein the alien service signal is a service signal transmitted by a device other than the repeater system;

[0022] 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.

[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 with the second signal transceiver through a third hardware link, a third loopback switch is further deployed on the third hardware link, the method is applied to the second processor, and the method comprises:

[0024] detecting whether the radio frequency unit currently satisfies a test condition;

[0025] in a case where it is detected that the radio frequency unit currently satisfies the test condition, controlling the third loopback switch to be in an open state, and sending a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the open state is used for returning a test signal received by the second signal transceiver to the second processor;

[0026] 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 greater the third distortion parameter, the greater the distortion rate between the third test signal and the reference test signal;

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

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

[0029] In a case where it is detected that the third distortion parameter is less than or equal to the target parameter threshold, it is determined that a 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 an off state and the fourth loopback switch to be in an on 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 on state is used to return a test signal received by the signal amplifier 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 greater the fourth distortion parameter, the greater the distortion rate between the fourth test signal and the reference test signal;

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

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

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

[0035] 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 to return the test signal transmitted outwards by the signal amplifier 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 greater the fifth distortion parameter is, the greater the distortion rate between the fifth test signal and the reference test signal is;

[0037] in a case where it is detected that the fifth distortion parameter is greater than the target parameter threshold, determining 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. The repeater system is deployed with an antenna unit, the antenna unit is deployed with a first signal transceiver and a first processor, the first signal transceiver is connected with the first processor through a first hardware link, and a first loopback switch is further deployed on the first hardware link. The device is applied to the first processor, and the device comprises:

[0039] a first detection module configured to detect whether the antenna unit currently meets a test condition;

[0040] a first control module configured to, in a case where it is detected that the antenna unit currently meets the test condition, control the first loopback switch to be in an open state, and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the open state is used to return a test signal received by the first signal transceiver 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 the greater the first distortion parameter is, the greater the distortion rate between the first test signal and the target test signal is;

[0042] The first determining module 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 the target parameter threshold. According to another aspect of the embodiments of the present application, a computer readable storage medium is also provided, which stores a computer program. The computer program is configured to execute the above-mentioned fault detection method of the repeater system when running.

[0043] According to another aspect of the embodiments of the present application, an electronic device is also provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the above-mentioned fault detection method of the repeater system through the computer program.

[0044] In the embodiments of the present application, a fault detection method of a repeater system is provided. The repeater system is deployed with an antenna unit, the antenna unit is deployed with a first signal transceiver and a first processor, the first signal transceiver is connected with the first processor through a first hardware link, and 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 a test condition. Then, when it is detected that the antenna unit currently meets the test condition, the first loopback switch is controlled to be in an open state, and a target test signal is sent to the first signal transceiver through the first hardware link. The first loopback switch in the open state can transmit the test signal received by the first signal transceiver back to the first processor. Then, the first test signal transmitted back by the first loopback switch is received, and a first distortion parameter between the first test signal and the target test signal is detected. The first distortion parameter can indicate a distortion rate between the first test signal and the target test signal. The greater the first distortion parameter, the greater 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 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. 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 signal sent and received in the hardware link, it is determined whether the part of the hardware link fails. Thus, the hardware failure condition that does not affect the current and voltage in the prior art cannot be detected by the current and voltage monitoring. Meanwhile, the present application can also automatically detect the connection state of the hardware link in the antenna unit of the repeater system, timely locate the hardware link in the abnormal connection state, and does not require the operation and maintenance personnel to manually check one by one. By using the above technical solution, the problems such as low fault detection efficiency of the repeater system in the related art are solved, and the technical effect of improving the fault detection efficiency of the repeater system is achieved. BRIEF DESCRIPTION OF DRAWINGS

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

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0048] Figure 2 This is a flowchart of a fault detection method for an antenna unit of a repeater system according to an embodiment of this application;

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

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

[0051] Figure 5 This is a flowchart of a fault detection method for a radio frequency unit in a repeater system according to an embodiment of this application;

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

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

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

[0055] Figure 9 This is a schematic diagram of a fault detection process for a repeater system according to an embodiment of this application;

[0056] Figure 10 This is a structural block diagram of a fault detection device for a repeater system according to an embodiment of this application. Detailed Implementation

[0057] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the scope of protection of the present application.

[0058] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0059] The method embodiments provided by the embodiments of the present application can be executed in a computer terminal, a device terminal or similar computing devices. Taking the running on a computer terminal as an example, Figure 1 is a hardware environment schematic diagram of a fault detection method of a repeater system according to the embodiments of the present application. As shown in Figure 1 , the computer terminal can include one or more (only one is shown in Figure 1 ) processor 102 (the processor 102 can 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 above-mentioned computer terminal can also include a transmission device 106 for communication function and an input and output device 108. Those skilled in the art can understand that Figure 1 The structure shown is only schematic, which does not limit the structure of the above-mentioned computer terminal. For example, the computer terminal can also include more or fewer components than those shown in Figure 1 , or have a different configuration with the same function as Figure 1 or more functions than Figure 1 .

[0060] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as a computer program corresponding to the message pushing sending method in the embodiments of the present application. The processor 102 can execute various functional applications and data processing, i.e., implement the above method, by running the computer programs stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include memories remotely arranged with respect to the processor 102, which can be connected to the computer terminal through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0061] The transmission device 106 is used to receive or send data via a network. Specific examples of the above network can include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 106 includes a network adapter (NIC), which can be connected to other network devices through a base station so as to be able 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 in a wireless manner.

[0062] In the present embodiment, a fault detection method of a repeater system is provided, Figure 2 is a flowchart of a fault detection method of an antenna unit of a repeater system according to the embodiments of the present application. The antenna unit is deployed in the repeater system, the first signal transceiver and the first processor are deployed in the antenna unit, the first signal transceiver is connected with the first processor through a first hardware link, and a first loopback switch is further deployed on the first hardware link. The method is applied to the first processor, as shown in the figure, and includes the following steps: Figure 2 The following steps are included:

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

[0064] Step S204: in a case where it is detected that the antenna unit currently meets the test condition, controlling the first loopback switch to be in an open state, and sending a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the open state is used to return the test signal received by the first signal transceiver to the first processor;

[0065] Step S206: Receive the first test signal returned by the first loopback switch, and detect the first distortion parameter between the first test signal and the target test signal. The first distortion parameter is used to indicate the distortion rate between the first test signal and the target test signal. The larger the first distortion parameter is, the larger the distortion rate between the first test signal and the target test signal.

[0066] Step S208: If the first distortion parameter is detected to be greater than the target parameter threshold, the connection status of the first hardware link in the repeater system is determined to be an abnormal connection status.

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

[0069] Optionally, in this embodiment, the target test signal may be, but is not limited to, a modulated signal that can be used for self-testing, 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, such as Figure 3As shown, the first processor, i.e. the AU FPGA, controls the first loopback switch, i.e. the B switch, to be in an open state after confirming that the antenna unit AU meets the test condition. In this embodiment, the B switch can have, but is not limited to, the following functions: in the open state, the target test signal can be sent to the first signal transceiver, i.e. the AU TRANSCEIVER, through the B link; and the test signal received by the AU TRANSCEIVER is transmitted back to the AU FPGA through the same B link.

[0071] Optionally, in this embodiment, the test signal transmitted back by the B switch and received by the first processor, i.e. the AU FPGA, is determined as the first test signal, 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 the first distortion parameter. The first distortion parameter can be, but is not limited to, the distortion degree of the signal in 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 this embodiment, the way to determine whether the connection state of the first hardware link in the repeater system is an abnormal connection state can be, but is not limited to: assuming that the target parameter threshold is set to 5%, in the case where the first distortion parameter is detected to be 7%, i.e. 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; and in the case where the first distortion parameter is detected to be 4%, i.e. the first distortion parameter is less than the target parameter threshold, it is determined that the connection state of the first hardware link in the repeater system is a normal connection state.

[0073] In one exemplary embodiment, a signal receiving interface is also deployed in the antenna unit, the repeater system is configured to receive the signal of the base station through the signal receiving interface, the signal receiving interface is connected with the first signal transceiver through a second hardware link, a second loopback switch is also deployed on the second hardware link, and after detecting the first distortion parameter between the first test signal and the target test signal, the method further comprises:

[0074] In the case where the first distortion parameter is detected to be less than or equal to the target parameter threshold, it is determined 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, 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 configured to transmit the test signal received by the signal receiving interface back to the first processor;

[0076] receiving the second test signal transmitted back 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 configured to indicate a distortion rate between the second test signal and the target test signal, and the greater the second distortion parameter, the greater the distortion rate between the second test signal and the target test signal;

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

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

[0079] Optionally, in the embodiment, Figure 4 is a schematic diagram of a second hardware link detection structure according to an embodiment of the present application, as Figure 4 shown, an external source such as an RRU (Remote Radio Unit) is connected with an AU TRANSCEIVER of an antenna unit of a repeater system using an N-type connector, the N-type connector is connected with the AU TRANSCEIVER through a second hardware link, the second hardware link can be, but is not limited to, a part of hardware link in the repeater system that needs to be self-detected, such as an A link; a 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 the embodiment, as Figure 4 shown, after the first processor, i.e., the AU FPGA, completes the first hardware link self-detection, it controls the first loopback switch, i.e., the B switch, to be in a closed state, and controls the second loopback switch, i.e., the A switch, to be in an open state, in the embodiment, the A switch can have, but is not limited to, the following functions: in the open state, it can send the target test signal to the signal receiving interface, i.e., the N-type connector, through the B link and the A link; and transmit the test signal received by the N-type connector back to the AU FPGA through the same A link and B link.

[0081] Optionally, in the embodiment, the first processor, i.e. the AU FPGA, determines the second test signal according to the test signal returned by the A switch, detects the distortion rate between the target test signal sent by the AU FPGA and the second test signal, and determines the distortion rate as the second distortion parameter, which is similar to the first distortion parameter and will not be described herein again.

[0082] In an example embodiment, the detection of whether the antenna unit currently satisfies the test condition can include, but is not limited to, the following manners: detecting a first time interval from a last time of failure detection of the antenna unit at a current time; in a case where the first time interval is greater than a first time 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 in a case where it is detected that the antenna unit is not currently receiving the external service signal, determining that the antenna unit currently satisfies the test condition.

[0083] Optionally, in the embodiment, the manner of detecting whether the antenna unit currently satisfies the test condition can include, but is not limited to, the following: assuming that the first time threshold is set to 30s, detecting that the time interval from the last time of failure detection of the antenna unit at the current time is 40s, determining the time interval as the first time interval; comparing the first time interval and the first time threshold, and in a case where the comparison result is that the first time interval is greater than the first time threshold, i.e. 40s is greater than 30s, detecting whether the antenna unit is currently receiving a service signal sent by a device other than the repeater system, and in a case where it is determined that the antenna unit is not receiving the external service signal, determining that the detected antenna unit satisfies the test condition.

[0084] In an example embodiment, before the target test signal is sent to the first signal transceiver through the first hardware link, the method further includes: detecting a signal frequency range of an external service signal allowed to be received by the antenna unit to obtain a first signal frequency range, wherein the external service signal is a service 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 the 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-1800MHz, the frequency range is determined as the first signal frequency range, and the frequency of the target test signal, i.e. the second signal frequency, should be a certain frequency outside the first signal frequency range, such as 500MHz or 2000MHz.

[0086] The embodiment also provides a fault detection method of a repeater system, Figure 5 is a flowchart of a fault detection method of a radio frequency unit of a repeater system according to the embodiment of the application. The repeater system is deployed with the radio frequency unit. The radio frequency unit is deployed with a second processor and a second signal transceiver. The second processor is connected with the second signal transceiver through a third hardware link. A third loopback switch is also deployed on the third hardware link. The method is applied to the second processor. As shown in the figure, the flowchart includes the following steps: Figure 5

[0087] Step S302: detecting whether the radio frequency unit currently meets a test condition.

[0088] Step S304: in the case that it is detected that the radio frequency unit currently meets the test condition, controlling the third loopback switch to be in an open state, and sending a reference test signal to the second signal transceiver through the third hardware link. The third loopback switch in the open state is used to return the test signal received by the second signal transceiver 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. The third distortion parameter is used to indicate a distortion rate between the third test signal and the reference test signal. The greater the third distortion parameter is, the greater the distortion rate between the third test signal and the reference test signal is.

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

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

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

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

[0094] In one exemplary embodiment, a signal amplifier is also deployed in the radio unit, the signal amplifier is connected with the second signal transceiver through a fourth hardware link, and 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 comprises: in the case where 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 the fourth test signal transmitted back 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 the distortion rate between the fourth test signal and the reference test signal, the greater the fourth distortion parameter, the greater the distortion rate between the fourth test signal and the reference test signal; and in the case where the fourth distortion parameter is greater than the target parameter threshold, determining 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, as Figure 7 As shown, the radio unit RU also deploys a signal amplifier, including but not limited to a power amplifier (Power Amplifier, PA), and the PA is connected with the RU TRANSCEIVER through a fourth hardware link. The fourth hardware link can be, but is not limited to, a part of the hardware link in the repeater system that needs to be self-detected, such as a D link. The fourth loopback switch deployed on the fourth hardware link is a switch consistent with the function of the first loopback switch, such as a D switch.

[0096] Optionally, in the embodiment, as shown in Figure 7 the second processor, i.e. the RU FPGA, controls the third loopback switch, i.e. the C switch, to be in the closed state and controls the fourth loopback switch, i.e. the D switch, to be in the open state after completing the self-detection of the third hardware link. In the embodiment, the D switch can have, but is not limited to, the following functions: in the open state, the target test signal can 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 C link.

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

[0098] In one exemplary embodiment, the 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 comprises: in the case 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 in the normal connection state; controlling the third loopback switch and the fourth loopback switch to be in the closed state and the fifth loopback switch to be in the 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 to transmit the test signal sent by the signal amplifier back to the second processor; receiving the fifth test signal transmitted back by the fifth loopback switch, and detecting 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, the greater the fifth distortion parameter, the greater the distortion rate between the fifth test signal and the reference test signal; in the case that the fifth distortion parameter is greater than the target parameter threshold, determining that the connection state of the signal amplifier in the repeater system is in the abnormal connection state.

[0099] Optionally, in the embodiment, Figure 8 is a schematic diagram of a fifth hardware link detection structure according to an embodiment of the present application, as shown in Figure 8 the signal amplifier PA also deploys a fifth loopback switch, i.e. the E switch, and the fifth hardware link can be, but is not limited to, a part of the hardware link in the repeater system that needs to be self-detected, such as the E link.

[0100] Optionally, in the embodiment, as shown in Figure 8As shown, after the fourth hardware link self-detection is completed, the second processor, i.e., the RU FPGA, controls the third loopback switch and the fourth loopback switch, i.e., the C switch and the D switch, to be in the closed state, and controls the fifth loopback switch, i.e., the E switch, to be in the open state. In this embodiment, the E switch can have, but is not limited to, the following functions: in the open state, the target test signal can be sent out to some 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 some external component is transmitted back to the RU FPGA 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 the first distortion parameter, which will not be described here.

[0102] In this embodiment, a fault detection method of a repeater system is provided, Figure 9 is a schematic diagram of a fault detection process of a repeater system according to an embodiment of the present application, as Figure 9As shown, the repeater system is deployed with an antenna unit AU and a radio unit RU, and an interface OP connects the antenna unit and the radio unit, the antenna unit is deployed with a first processor AU FPGA and a first signal transceiver AU TRANSCEIVE, and N heads are connected with the AU TRANSCEIVE through a second hardware link A link, and are also connected with external sources such as RRUs; the radio unit is deployed with a second processor RU FPGA and a second signal transceiver RU TRANSCEIVE, and a signal amplifier PA is connected with the RU TRANSCEIVE through a fourth hardware link D link, and is also connected with external components through a fifth hardware link E link. The fault detection is mainly divided into five parts: a first hardware link (A link), a second hardware link (B link), a third hardware link (C link), a fourth hardware link (D link), and a fifth hardware link (E link). For the fault detection of the antenna unit side, first, the B link is subjected to fault detection, the AU FPGA controls the B switch to be in an open state after confirming that the antenna unit AU meets the test conditions, the B switch sends a target test signal to the AU TRANSCEIVER through the B link in the open state, the test signal received by the AU TRANSCEIVER is transmitted back to the AU FPGA through the same B link, then a first distortion parameter EVM between the target test signal and a first test signal is calculated, the size of a target parameter threshold and the first distortion parameter is compared, and in the case that 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 is subjected to fault detection, the B switch is controlled to be in a closed state, and the A switch is controlled to be in an open state, the A switch can send the target test signal to the N heads through the B link and the A link in the open state, and the test signal received by the N heads is transmitted back to the AU FPGA through the same A link and B link, and then a second distortion parameter is calculated. Similarly, the detection sequence for the radio unit side is C link, D link, and E link, and the detection steps are similar to those of the antenna unit side, and will not be described herein.

[0103] Those skilled in the art can clearly understand that the method according to the above-mentioned embodiments can be realized by means of software and a necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application 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 plurality of instructions for making a terminal device (which can be a mobile phone, computer, server, or network device, etc.) execute the method of each embodiment of the present application.

[0104] Figure 10is a structural block diagram of a fault detection device of 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 with 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 as shown in the figure, the device comprises: Figure 10

[0105] A first detection module 1002 is configured to detect whether a test condition is met at present.

[0106] A first control module 1004 is configured to, in a case where it is detected that the test condition is met at present, control the first loopback switch to be in an open state and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch in the open state is configured to return a test signal received by the first signal transceiver to the first processor.

[0107] A first receiving module 1006 is 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 configured to indicate a distortion rate between the first test signal and the target test signal, and the greater the first distortion parameter is, the greater the distortion rate between the first test signal and the target test signal is.

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

[0109] In one exemplary embodiment, the device further comprises:

[0110] A second determination module is configured to, in a case where a signal receiving interface is also deployed in the antenna unit and the repeater system is configured to receive a signal of a base station through the signal receiving interface, the signal receiving interface is connected with the first signal transceiver through a second hardware link, a second loopback switch is also deployed on the second hardware link, and after the first distortion parameter between the first test signal and the target test signal is detected, in a case where it is detected that the first distortion parameter is less than or equal to the target parameter threshold, it is determined 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 an off state, the second loopback switch to be in an on state, and 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 on 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 transmitted back 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 configured to indicate a distortion rate between the second test signal and the target test signal, and the greater the second distortion parameter, the greater the distortion rate between the second test signal and the target test signal;

[0113] a third determining module, configured 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 example embodiment, the first detecting module comprises:

[0115] a first detecting unit, configured to detect a first time interval from a last time of failure detection of the antenna unit at a current time;

[0116] a second detecting unit, configured to detect whether the antenna unit is currently receiving an alien service signal in a case where the first time interval is greater than a first time threshold, wherein the alien service signal is a service signal sent by a device other than the repeater system;

[0117] a first determining unit, configured to determine that the antenna unit currently satisfies the test condition in a case where it is detected that the antenna unit is not currently receiving the alien service signal.

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

[0119] a second detecting module, configured to detect a first signal frequency range of an alien service signal allowed to be received by the antenna unit before the target test signal is sent to the first signal transceiver through the first hardware link, wherein the alien service signal is a service signal sent by a device other than the repeater system;

[0120] a generating module, configured 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 first signal frequency range.

[0121] In one example embodiment, a radio frequency unit is deployed in a repeater system, the radio frequency unit has a second processor and a second signal transceiver connected with the second processor through a third hardware link, a third loopback switch is also deployed on the third hardware link, the device is applied to the second processor, and the device comprises:

[0122] A third detection module is configured to detect whether the radio frequency unit currently meets a test condition.

[0123] A third control module is configured to, in a case where it is detected that the radio frequency unit currently meets the test condition, control the third loopback switch to be in an open state, and send a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the open state is configured to transmit a test signal received by the second signal transceiver back to the second processor.

[0124] A third receiving module is configured to receive a third test signal transmitted back 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 configured to indicate a distortion rate between the third test signal and the reference test signal, and the greater the third distortion parameter is, the greater the distortion rate between the third test signal and the reference test signal is.

[0125] A fourth determination module is configured to, in a case where it is detected that the third distortion parameter is greater than a target parameter threshold, determine that a connection state of the third hardware link in the repeater system is an abnormal connection state.

[0126] In one example embodiment, the device further comprises:

[0127] A second determination unit is configured to, in a case where a signal amplifier is also deployed in the radio frequency unit and the signal amplifier is connected with the second signal transceiver through a fourth hardware link, a fourth loopback switch is also deployed on the fourth hardware link, after the third distortion parameter between the third test signal and the reference test signal is detected, and in a case where it is detected that the third distortion parameter is less than or equal to the target parameter threshold, determine that a connection state of the third hardware link in the repeater system is a normal connection state.

[0128] A control unit is configured to control the third loopback switch to be in a closed state, the fourth 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 fourth loopback switch in the open state is configured to transmit a test signal received by the signal amplifier back to the second processor.

[0129] receive the 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 greater the fourth distortion parameter, the greater the distortion rate between the fourth test signal and the reference test signal;

[0130] a third determination unit configured 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 example embodiment, the apparatus further comprises:

[0132] a fifth determination module configured to determine 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 after detecting the fourth distortion parameter between the fourth test signal and the reference test signal, wherein the fifth loopback switch is further deployed on the signal amplifier.

[0133] a fourth control module configured to control the third loopback switch and the fourth loopback switch to be in an off state, the fifth loopback switch to be in an on 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 on state is used to return the test signal sent by the signal amplifier 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 greater the fifth distortion parameter, the greater the distortion rate between the fifth test signal and the reference test signal.

[0135] a sixth determination module configured 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] Embodiments of the present application also provide an electronic device comprising a memory and a processor, the memory storing a computer program, and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

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

[0138] Optionally, in the embodiment, the processor can be configured to execute the following steps by using a computer program:

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

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

[0141] S3, receiving the first test signal transmitted back 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 the greater the first distortion parameter, the greater the distortion rate between the first test signal and the target test signal;

[0142] S4, in the case where 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 the embodiment, the processor can be further configured to execute the following steps by using a computer program:

[0144] S5, detecting whether the radio frequency unit currently meets a test condition;

[0145] S6, in the case where it is detected that the radio frequency unit currently meets the test condition, controlling the third loopback switch to be in an open state, and sending a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the open state is used to transmit the test signal received by the second signal transceiver back to the second processor;

[0146] S7, receiving the third test signal transmitted back 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 greater the third distortion parameter, the greater the distortion rate between the third test signal and the reference test signal;

[0147] S8, in the case that the third distortion parameter is greater than a 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 the embodiment, the storage medium can include, but is not limited to, a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and various storage medium capable of storing program codes.

[0149] Optionally, specific examples in the embodiment can refer to examples described in the above embodiments and optional implementation manners, and the embodiment will not be described here.

[0150] Obviously, those skilled in the art should understand that each module or each step of the present application described above can be realized by a general computing device, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing device, so that the program codes 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 an order different from here, or they can be manufactured into each integrated circuit module respectively, or multiple modules or steps among them can be manufactured into a single integrated circuit module to realize. Thus, the present application is not limited to any specific combination of hardware and software.

[0151] The above description is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which should be regarded as the protection scope of the present application.

Claims

1. A method for failure detection of a repeater system, characterized by, The repeater system is provided with an antenna unit, the antenna unit is provided with a first signal transceiver and a first processor, the first signal transceiver is connected with the first processor through a first hardware link, a first loopback switch is further arranged on the first hardware link, the method is applied to the first processor, and the method comprises the following steps: detecting whether the antenna unit currently meets a test condition; in the case that it is detected that the antenna unit currently meets the test condition, controlling the first loopback switch to be placed in an open state, and sending a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch placed in the open state is used for returning a test signal received by the first signal transceiver to the first processor; receiving the 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 for indicating a distortion rate between the first test signal and the target test signal, and the greater the first distortion parameter is, the greater the distortion rate between the first test signal and the target test signal is; in the case that it is detected that the first distortion parameter is greater than a target parameter threshold, determining that a connection state of the first hardware link in the repeater system is an abnormal connection state; wherein a signal receiving interface is further arranged in the antenna unit, the repeater system is used for receiving a signal of a base station through the signal receiving interface, the signal receiving interface is connected with the first signal transceiver through a second hardware link, a second loopback switch is further arranged on the second hardware link, and after the first distortion parameter between the first test signal and the target test signal is detected, the method further comprises the following steps: in the case that it is detected that the first distortion parameter is less than or equal to the target parameter threshold, determining that a connection state of the first hardware link in the repeater system is a normal connection state; controlling the first loopback switch to be placed in a closed state and the second loopback switch to be placed 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 placed in the open state is used for returning a test signal received by the signal receiving interface 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 for indicating a distortion rate between the second test signal and the target test signal, and the greater the second distortion parameter is, the greater the distortion rate between the second test signal and the target test signal is; in the case that it is detected that the second distortion parameter is greater than the target parameter threshold, determining that a connection state of the second hardware link in the repeater system is an abnormal connection state; wherein the first distortion parameter and the second distortion parameter are error vector magnitude values, and the error vector magnitude values are obtained by calculating a distortion degree of a signal in a modulation process.

2. The method of claim 1, wherein, The detecting whether the antenna unit currently meets a test condition comprises: detecting a first time interval from a last time of failure detection of the antenna unit to a current time; in a case where the first time interval is greater than a first time threshold, detecting whether the antenna unit is currently receiving an external service signal, wherein the external service signal is a service signal transmitted by a device other than the repeater system; in a case where it is detected that the antenna unit is not currently receiving the external service signal, determining that the antenna unit currently meets the test condition.

3. The method of claim 1, wherein, Before the sending of the target test signal to the first signal transceiver through the first hardware link, the method further comprises: detecting a signal frequency range of an external service signal allowed to be received by the antenna unit, to obtain a first signal frequency range, wherein the external service signal is a service signal transmitted by a device other than the repeater system; 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.

4. A method for failure detection of a repeater system, characterized by, A repeater system is deployed with a radio frequency unit, the radio frequency unit is deployed with a second processor and a second signal transceiver, the second processor is connected with the second signal transceiver through a third hardware link, a third loopback switch is further deployed on the third hardware link, the method is applied to the second processor, and the method comprises: detecting whether the radio frequency unit currently meets a test condition; in a case where it is detected that the radio frequency unit currently meets the test condition, controlling the third loopback switch to be in an open state, and sending a reference test signal to the second signal transceiver through the third hardware link, wherein the third loopback switch in the open state is used for returning a test signal received by the second signal transceiver 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 for indicating a distortion rate between the third test signal and the reference test signal, and the greater the third distortion parameter is, the greater the distortion rate between the third test signal and the reference test signal is; in a case where it is detected that the third distortion parameter is greater than a target parameter threshold, determining that a connection state of the third hardware link in the repeater system is an abnormal connection state; The signal amplifier is further disposed on the signal amplifier, and the method further comprises: In a case 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; 5. The method of claim 4, wherein, 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 fifth loopback switch in the open state is used for returning the test signal sent by the signal amplifier 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 for indicating a distortion rate between the fifth test signal and the reference test signal, and the greater the fifth distortion parameter is, the greater the distortion rate between the fifth test signal and the reference test signal is; In a case that the fifth distortion parameter is greater than the target parameter threshold, determining that the connection state of the signal amplifier in the repeater system is an abnormal connection state. Comprise: ​ 6. A failure detection apparatus of a repeater system, characterized by comprising: ​ An antenna unit is deployed in a repeater system, the antenna unit has a first signal transceiver and a first processor deployed therein, the first signal transceiver is connected with 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 comprises: A first detection module is configured to detect whether the antenna unit currently meets a test condition; A first control module is configured to, in a case where it is detected that the antenna unit currently meets the test condition, control the first loopback switch to be placed in an open state, and send a target test signal to the first signal transceiver through the first hardware link, wherein the first loopback switch placed in the open state is configured to transmit a test signal received by the first signal transceiver back to the first processor; A first receiving module is configured to receive a first test signal transmitted back 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 configured to indicate a distortion rate between the first test signal and the target test signal, and the greater the first distortion parameter, the greater the distortion rate between the first test signal and the target test signal; A first determination module is configured to, in a case where it is detected that the first distortion parameter is greater than a target parameter threshold, determine that a connection state of the first hardware link in the repeater system is an abnormal connection state. The antenna unit is further provided with a signal receiving interface, the repeater system is configured to receive a signal of a base station through the signal receiving interface, the signal receiving interface is connected with the first signal transceiver through a second hardware link, a second loopback switch is further disposed on the second hardware link, and the device further comprises: a second determining module configured to, after detecting the first distortion parameter between the first test signal and the target test signal, determine that the connection state of the first hardware link in the repeater system is a normal connection state if the first distortion parameter is less than or equal to the target parameter threshold; a second control module configured to control the first loopback switch to be in an off state, the second loopback switch to be in an on state, and the target test signal to be sent to the signal receiving interface through the first hardware link and the second hardware link, wherein the second loopback switch in the on state is configured to return the test signal received by the signal receiving interface to the first processor; 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 the greater the second distortion parameter, the greater the distortion rate between the second test signal and the target test signal; and a third determining module configured to, if the second distortion parameter is greater than the target parameter threshold, determine that the connection state of the second hardware link in the repeater system is an abnormal connection state. The first distortion parameter and the second distortion parameter are error vector magnitude values, and the error vector magnitude values are obtained by calculating the distortion degree of a signal in a modulation process.

7. A computer readable storage medium, characterized in that, The computer readable storage medium comprises a stored program, wherein the program is configured to execute the method of any one of claims 1 to 5 when executed. 8.An electronic device comprising a memory and a processor, the electronic device comprising: The memory stores a computer program, and the processor is configured to execute the method of any one of claims 1 to 5 through the computer program.

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