阅读说明：本技术 天馈故障检测方法、装置及存储介质 (Antenna feeder fault detection method, device and storage medium ) 是由 胡海超 于 2018-08-07 设计创作，主要内容包括：本申请提供一种天馈故障检测方法、装置及存储介质，其中，该方法适用于基站和天馈系统的基站天馈系统，该方法包括：基于基站中业务信号的EVM指标约束、ACLR指标约束以及该业务信号，确定用于检测天馈系统的故障检测信号，对该故障检测信号和业务信号进行混频处理，得到混频信号，获取该混频信号的前向反馈信号和反向反馈信号，最后对该前向反馈信号和反向反馈信号进行数据处理，得到天馈系统的故障检测结果。该技术方案中，对天馈系统进行故障检测的同时，不会对业务信号产生影响，减少了用户感知，提高了用户体验。(The application provides an antenna feeder fault detection method, a device and a storage medium, wherein the method is suitable for a base station antenna feeder system of a base station and an antenna feeder system, and the method comprises the following steps: determining a fault detection signal for detecting an antenna feed system based on EVM index constraint, ACLR index constraint and the service signal of the service signal in a base station, performing frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal, acquiring a forward feedback signal and a reverse feedback signal of the frequency mixing signal, and finally performing data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feed system. According to the technical scheme, the fault detection is carried out on the antenna feeder system, meanwhile, the service signal is not influenced, the user perception is reduced, and the user experience is improved.)

1. An antenna feeder fault detection method is characterized by being applicable to a base station antenna feeder system, and the base station antenna feeder system comprises the following steps: a base station and an antenna feed system connected to each other, the method comprising:

determining a fault detection signal for detecting the antenna feed system based on Error Vector Magnitude (EVM) index constraint, adjacent frequency band leakage ratio (ACLR) index constraint and the service signal of the service signal in the base station, wherein the fault detection signal is the same as a transmission link of the service signal;

performing frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal;

acquiring a forward feedback signal and a backward feedback signal of the mixing signal, wherein the forward feedback signal is acquired after the mixing signal reaches a duplexer of the base station, and the backward feedback signal is acquired after the mixing signal reaches the antenna feed system and is reflected back to the duplexer;

and carrying out data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system.

2. The method of claim 1, wherein determining a fault detection signal for detecting the antenna feed system based on an Error Vector Magnitude (EVM) indicator constraint of a traffic signal in the base station, an adjacent band leakage ratio (ACLR) indicator constraint, and the traffic signal comprises:

acquiring the service signal in the base station and the frequency point information of the service signal;

determining a digital up-conversion value and a digital down-conversion value of the base station according to the EVM index constraint, the ACLR index constraint and the frequency point information of the service signal;

and determining the fault detection signal according to the service signal, the digital up-conversion value and the digital down-conversion value.

3. The method of claim 2, wherein obtaining the forward feedback signal and the backward feedback signal of the mixed signal comprises:

controlling the duplexer to be in a first switch mode, acquiring the forward feedback signal by using a signal acquisition module of the base station, and feeding the mixing signal back to the signal acquisition module by using the duplexer when the duplexer is in the first switch mode;

control the duplexer is located second switch mode, utilizes the signal acquisition module of basic station acquires reverse feedback signal, when the duplexer was located second switch mode, the duplexer allowed the mixing signal passes through, but will arrive the antenna feeder system just is reflected back the signal feedback of duplexer feeds back to the signal acquisition module.

4. The method of claim 1, wherein the performing data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system comprises:

processing data of the forward feedback signal and the reverse feedback signal based on a standing wave principle to obtain standing wave characteristics of the antenna feed system;

and determining the fault detection result according to the standing wave characteristics.

5. The method according to any one of claims 1-4, wherein after the data processing of the forward feedback signal and the backward feedback signal to obtain the fault detection result of the antenna feed system, the method further comprises:

determining a fault point of the antenna feed system according to the fault detection result;

and determining the position of the fault point in the antenna feed system according to the fault point and the signal transmission speed in the antenna feed system, wherein the signal transmission speed corresponds to the type of a feeder line in the antenna feed system.

6. An antenna feeder fault detection device, characterized in that, integrate in base station antenna feeder system, base station antenna feeder system includes: interconnected base station and antenna feed system, the device includes: the device comprises a determining module, a processing module and a signal acquiring module;

the determining module is configured to determine a fault detection signal for detecting the antenna feed system based on an Error Vector Magnitude (EVM) index constraint, an adjacent frequency band leakage ratio (ACLR) index constraint, and the service signal of the service signal in the base station, where the fault detection signal is the same as a transmission link of the service signal;

the processing module is configured to perform frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal;

the signal acquisition module acquires a forward feedback signal and a backward feedback signal of the mixed signal, wherein the forward feedback signal is acquired after the mixed signal reaches a duplexer of the base station, and the backward feedback signal is acquired after the mixed signal reaches the antenna feed system and is reflected back to the duplexer;

the processing module is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system.

7. The apparatus according to claim 6, wherein the determining module is specifically configured to obtain the service signal in the base station and frequency point information of the service signal, determine a digital up-conversion value and a digital down-conversion value of the base station according to the EVM indicator constraint, the ACLR indicator constraint, and the frequency point information of the service signal, and determine the fault detection signal according to the service signal, the digital up-conversion value, and the digital down-conversion value.

8. The apparatus of claim 7, wherein the signal obtaining module is specifically configured to control the duplexer to be in a first switch mode, obtain the forward feedback signal, and when the duplexer is in the first switch mode, the duplexer feeds the mixing signal back to the signal obtaining module, control the duplexer to be in a second switch mode, obtain the reverse feedback signal, and when the duplexer is in the second switch mode, the duplexer allows the mixing signal to pass through, but feeds a signal reaching the antenna feed system and reflected back to the duplexer back to the signal obtaining module.

9. The apparatus according to claim 6, wherein the processing module is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feed system, and specifically:

the processing module is further configured to perform data processing on the forward feedback signal and the reverse feedback signal based on a standing wave principle, acquire a standing wave characteristic of the antenna feed system, and determine the fault detection result according to the standing wave characteristic.

10. The apparatus according to any one of claims 6 to 9, wherein the processing module is further configured to, after performing data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feed system, determine a fault point of the antenna feed system according to the fault detection result, and determine a position of the fault point in the antenna feed system according to the fault point and a signal transmission speed in the antenna feed system, where the signal transmission speed corresponds to a type of a feeder line in the antenna feed system.

11. A storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1-5.

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting an antenna feeder fault, and a storage medium.

Background

The radio frequency signal transmission and reception in the wireless communication system are completed through the antenna feeder system, and the installation quality and the operation condition of the antenna feeder system directly influence the quality, the coverage range and the working state of a transmitter of the radio frequency signal. When the antenna system fails, the radio frequency signal is lost, so that the signal coverage is affected, and in severe cases, the front-stage equipment may be damaged. Therefore, it is necessary to detect the failure of the antenna feeder system.

At present, in an existing antenna feeder fault detection method, in order to simplify an antenna feeder fault detection scheme and prevent a running service signal from exceeding a constraint of a wireless communication system on an Error Vector Magnitude (EVM) index and an Adjacent Channel Leakage Ratio (ACLR) index, a common method is to first close a service carrier, then control an Orthogonal Frequency Division Multiplexing (OFDM) signal with a fixed bandwidth to be sent inside a base station system, count a forward feedback signal and a reverse feedback signal by using a dedicated hardware circuit, and determine a result of antenna feeder fault detection by processing the forward feedback signal and the reverse feedback signal.

However, although the existing antenna feeder fault detection method is simple and feasible, the service carrier signal needs to be turned off, which may cause a problem of network drop and call drop of a terminal device that has been accessed to the base station system, affect user perception, and cause poor user experience.

Disclosure of Invention

The application provides an antenna feeder fault detection method, an antenna feeder fault detection device and a storage medium, and aims to solve the problem that in an existing antenna feeder fault detection method, due to the fact that a service signal needs to be turned off, a terminal device is disconnected from a network and a call, and user experience is poor.

The first aspect of the present application provides a method for detecting an antenna feeder fault, which is applicable to a base station antenna feeder system, where the base station antenna feeder system includes: a base station and an antenna feed system connected to each other, the method comprising:

determining a fault detection signal for detecting the antenna feed system based on Error Vector Magnitude (EVM) index constraint, adjacent frequency band leakage ratio (ACLR) index constraint and the service signal of the service signal in the base station, wherein the fault detection signal is the same as a transmission link of the service signal;

performing frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal;

acquiring a forward feedback signal and a backward feedback signal of the mixing signal, wherein the forward feedback signal is acquired after the mixing signal reaches a duplexer of the base station, and the backward feedback signal is acquired after the mixing signal reaches the antenna feed system and is reflected back to the duplexer;

and carrying out data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system.

Optionally, in a possible implementation manner of the first aspect, the determining a fault detection signal for detecting the antenna feed system based on an error vector magnitude EVM index constraint of a traffic signal in the base station, an adjacent band leakage ratio ACLR index constraint of the traffic signal, and the traffic signal includes:

acquiring the service signal in the base station and the frequency point information of the service signal;

determining a digital up-conversion value and a digital down-conversion value of the base station according to the EVM index constraint, the ACLR index constraint and the frequency point information of the service signal;

and determining the fault detection signal according to the service signal, the digital up-conversion value and the digital down-conversion value.

Optionally, in the foregoing possible implementation manner of the first aspect, the acquiring a forward feedback signal and a backward feedback signal of the mixed signal includes:

controlling the duplexer to be in a first switch mode, acquiring the forward feedback signal by using a signal acquisition module of the base station, and feeding the mixing signal back to the signal acquisition module by using the duplexer when the duplexer is in the first switch mode;

control the duplexer is located second switch mode, utilizes the signal acquisition module of basic station acquires reverse feedback signal, when the duplexer was located second switch mode, the duplexer allowed the mixing signal passes through, but will arrive the antenna feeder system just is reflected back the signal feedback of duplexer feeds back to the signal acquisition module.

Optionally, in another possible implementation manner of the first aspect, the performing data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system includes:

processing data of the forward feedback signal and the reverse feedback signal based on a standing wave principle to obtain standing wave characteristics of the antenna feed system;

and determining the fault detection result according to the standing wave characteristics.

Optionally, in another possible implementation manner of the first aspect, after the data processing is performed on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feed system, the method further includes:

determining a fault point of the antenna feed system according to the fault detection result;

and determining the position of the fault point in the antenna feed system according to the fault point and the signal transmission speed in the antenna feed system, wherein the signal transmission speed corresponds to the type of a feeder line in the antenna feed system.

This application second aspect provides an antenna feeder fault detection device, integrates in basic station antenna feeder system, basic station antenna feeder system includes: interconnected base station and antenna feed system, the device includes: the device comprises a determining module, a processing module and a signal acquiring module;

the determining module is configured to determine a fault detection signal for detecting the antenna feed system based on an Error Vector Magnitude (EVM) index constraint, an adjacent frequency band leakage ratio (ACLR) index constraint, and the service signal of the service signal in the base station, where the fault detection signal is the same as a transmission link of the service signal;

the processing module is configured to perform frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal;

the signal acquisition module acquires a forward feedback signal and a backward feedback signal of the mixed signal, wherein the forward feedback signal is acquired after the mixed signal reaches a duplexer of the base station, and the backward feedback signal is acquired after the mixed signal reaches the antenna feed system and is reflected back to the duplexer;

the processing module is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system.

Optionally, in a possible implementation manner of the second aspect, the determining module is specifically configured to obtain the service signal in the base station and frequency point information of the service signal, determine a digital up-conversion value and a digital down-conversion value of the base station according to the EVM index constraint, the ACLR index constraint, and the frequency point information of the service signal, and determine the fault detection signal according to the service signal, the digital up-conversion value, and the digital down-conversion value.

Optionally, in the above possible implementation manner of the first aspect, the signal obtaining module is specifically configured to control the duplexer is located in the first switch mode, and obtains the forward feedback signal, when the duplexer is located in the first switch mode, the duplexer feeds the mixing signal back to the signal obtaining module, and controls the duplexer is located in the second switch mode, and obtains the reverse feedback signal, when the duplexer is located in the second switch mode, the duplexer allows the mixing signal to pass through, but will reach the antenna feed system and be reflected back to the signal obtaining module.

Optionally, in another possible implementation manner of the first aspect, the processing module is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feed system, and specifically:

the processing module is further configured to perform data processing on the forward feedback signal and the reverse feedback signal based on a standing wave principle, acquire a standing wave characteristic of the antenna feed system, and determine the fault detection result according to the standing wave characteristic.

Optionally, in another possible implementation manner of the first aspect, the processing module is further configured to, after performing data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feed system, determine a fault point of the antenna feed system according to the fault detection result, and determine a position of the fault point in the antenna feed system according to the fault point and a signal transmission speed in the antenna feed system, where the signal transmission speed corresponds to a type of a feeder line in the antenna feed system.

A third aspect of the present application provides an antenna feeder fault detection apparatus comprising at least one processing element (or chip) for performing the method of the first aspect above.

A fourth aspect of the present application provides a chip, the chip comprising: means or units for performing the antenna feeder failure detection apparatus provided by the first aspect and the various possible implementations of the first aspect.

A fifth aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect and the various possible implementations of the first aspect.

A sixth aspect of the present application provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the first aspect and the various possible implementations of the first aspect.

The method, the device and the storage medium for detecting the antenna feeder fault provided by the embodiment of the application determine a fault detection signal for detecting an antenna feeder system based on EVM index constraint, ACLR index constraint and a service signal of the service signal in a base station, perform frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal, obtain a forward feedback signal and a reverse feedback signal of the frequency mixing signal, and perform data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system.

Drawings

Fig. 1 is a schematic structural diagram of a base station antenna feeder system according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart of a first embodiment of an antenna feeder fault detection method provided in the embodiment of the present application;

fig. 3 is a schematic flow chart of a second method for detecting an antenna feeder fault according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a third embodiment of an antenna feeder fault detection method provided in the embodiment of the present application;

fig. 5 is a schematic flowchart of a fourth embodiment of an antenna feeder fault detection method provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a first antenna feeder fault detection apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a second embodiment of an antenna feeder fault detection apparatus provided in the embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The antenna feeder fault detection method provided by the following embodiments of the application can be applied to a base station antenna feeder system. Fig. 1 is a schematic structural diagram of a base station antenna feeder system according to an embodiment of the present application. As shown in fig. 1, the base station antenna feeder system may include a base station 11 and an antenna feeder system 12 connected to each other. The base station 11 transmits and receives wireless signals through the antenna feed system 12. In the base station antenna feeder system of the embodiment shown in fig. 1, the base station 11 includes a service signal transmitter 111, a fault detection signal transmitter 112, a first digital up-conversion module 1110, a second digital up-conversion module 1120, a first filter 113, a first mixer 114, a power amplifier 115, a duplexer 116, a second mixer 117, a second filter 118, a digital down-conversion module 119, and a signal acquisition module 1190, the antenna feeder system 12 includes a feeder line 121 and an antenna system 122, and the base station 11 is connected to the feeder line 121 of the antenna feeder system 12 through a set top port 110.

Optionally, the service signal transmitter 111 is configured to transmit a service signal, the first digital up-conversion module 1110 is configured to obtain frequency point information of the service signal in real time, the failure detection signal transmitter 112 is configured to transmit a failure detection signal, and accordingly, the second digital up-conversion module 1120 may be configured to adjust a transmission frequency point of the failure detection signal according to the frequency point information of the service signal set in the base station, the first filter 113 is configured to perform signal shaping filtering on the service signal and the failure detection signal in the channel, the first mixer 114 is configured to perform mixing processing on the service signal and the failure detection signal in the channel and output the mixed signal, the power amplifier 115 is configured to amplify power of the mixed signal to a proper size for subsequent detection, the duplexer 116 is configured to change a transmission direction of the mixed signal reaching the duplexer, and the second mixer 117 is configured to perform mixing processing on the arriving signal, the signal processing module comprises a second filter 118 for filtering the external noise superimposed on the mixed signal, a digital down-conversion module 119 for transferring the mixed signal to a suitable frequency point, and a signal acquisition module 1190 for acquiring the forward feedback signal and the reverse feedback signal. Optionally, the signal acquiring module 1190 may be a signal acquiring module, and the embodiment of the present application does not limit the specific name of the module for acquiring the signal.

Optionally, the base station and the antenna feeder system in the base station antenna feeder system may not be limited to include the above elements, and may also include other network entities such as a network controller, a mobility management entity, and the like, which is not limited to this embodiment of the present application.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The base station 11 referred to in the embodiments of the present application is also a network device in a wireless communication system, and can be used to provide a wireless communication function for a terminal device in the wireless communication system. The base station 11 may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like. The base station 11 may be a Base Transceiver Station (BTS) in GSM or CDMA, a base station (nodeB, NB) in WCDMA, an evolved node B (eNB or e-nodeB) in LTE, and a corresponding device gbb in a 5G network. For convenience of description, in all embodiments of the present application, the above-mentioned apparatus for providing a wireless communication function for a terminal device is collectively referred to as a base station 11.

In the embodiments of the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

First, a brief description is given of an application scenario of the embodiment of the present application.

In the existing base station antenna feeder system, when a base station is used to detect a fault in the antenna feeder system, because the actual use scenario of standing wave test is considered to be the open station stage, at this time, no service carrier signal (hereinafter referred to as a service signal) needs to be protected in the base station antenna feeder system, the existing antenna feeder fault detection scheme does not consider the scenario when the service signal exists in the base station antenna feeder system, and does not further consider the scheme for protecting the service signal existing in the base station antenna feeder system. For a private network base station system, a flexible and frequent antenna feeder fault detection function is required, that is, when a service signal exists, an antenna feeder fault detection may be performed on an antenna feeder system.

In general, a base station in a base station antenna feed system needs to satisfy strict constraints of an Error Vector Magnitude (EVM) index and an Adjacent Channel Leakage Ratio (ACLR) index of a radio frequency signal of the base station by organizations such as 3GPP and ITU, and the radio frequency signal sent by a base station operated by an operator needs to be within an authorized frequency band. Therefore, in the antenna feeder fault detection, the constraint condition also needs to be satisfied for an Orthogonal Frequency Division Multiplexing (OFDM) signal with a fixed bandwidth used by the base station.

In the existing antenna feeder fault detection method, in order to simplify the processing of the antenna feeder fault detection and prevent the service signal from exceeding the constraints of the base station antenna feeder system on the EVM index and the ACLR index, the common practice is to first close the service signal, then send an antenna feeder fault detection signal (in this embodiment, the antenna feeder fault detection signal is an OFDM signal with a fixed bandwidth) at a signal transmitter inside the control base station, then count a forward feedback signal and a reverse feedback signal by using a dedicated hardware circuit in the base station, and finally process the forward feedback signal and the reverse feedback signal to determine the result of the antenna feeder fault detection.

Although the existing antenna feeder fault detection method is simple and feasible, the behavior of artificially closing the service signal, namely deleting the service signal, has the phenomenon of network drop and call drop for the terminal equipment which is accessed to the base station, and influences the user perception.

In practical application, the EVM and ALCR index constraints of the base station radio frequency signals are actually an index lower limit, so that the EVM and ALCR index constraints have corresponding margin design when the base station antenna feed system is designed. Therefore, in the practical process, if the EVM index and ALCR index allowance reserved in the system design can be used, the service signal is not closed during the antenna fault detection, and meanwhile, the antenna fault detection signal can be sent to a signal path of the base station, so that the purpose that the service signal is not influenced by the antenna feed fault detection in the base station antenna feed system can be achieved, the influence on user perception caused by the service signal closing is avoided, and the core competitiveness of the base station antenna feed system is improved.

Optionally, in this embodiment, the design difficulty of the scheme that the fault of the antenna feed system can be detected while the service signal is not turned off is the power amplitude of the fault detection signal (OFDM signal) that needs to be sent for antenna fault detection, and the forward feedback signal and the reverse feedback signal that are acquired by the base station after the fault detection signal is transmitted, and only if the accumulation time of the forward feedback signal and the statistical time of the reverse feedback signal are optimized, the short time consumption for antenna feed fault detection and the requirement for signal to noise ratio (SNR) satisfaction can be achieved, and the purpose of radio frequency index constraint in the base station antenna feed system is met.

Optionally, in a general case, the impedance design criterion between the antenna feeder system of the base station antenna feeder system and the set top port of the base station is 50 ohm impedance. When the impedance between the antenna system and the set top port of the base station is matched, the service signal transmitted by the base station can be radiated completely. On the contrary, if the impedance matching between the antenna feeder system and the set top port of the base station does not meet the requirement of 50 ohms due to antenna feeder fault reasons such as loose connection of equipment, excessive bending of an antenna feeder cable, cable breakage and the like in the base station antenna feeder system, at this time, besides partial radiation of service signals of the base station, partial signals can be reflected back to the inside of the base station, which will cause the problems that the transmission power of the base station is reduced, the service range of the base station is affected, and the service life of each hardware device in the base station is affected.

The embodiment of the application provides an antenna feeder fault detection method, which realizes the detection of the antenna feeder fault and improves the user perception under the condition that a service signal and a fault detection signal coexist and the service signal use is not influenced. The technical solution of the present application will be described in detail below with reference to specific examples.

It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

Fig. 2 is a schematic flowchart of a first embodiment of an antenna feeder fault detection method provided in the embodiment of the present application. The antenna feeder fault detection method is suitable for the base station antenna feeder system shown in figure 1. Referring to the base station antenna feeder system shown in fig. 1, as shown in fig. 2, the method for detecting an antenna feeder fault in the embodiment of the present application may include the following steps:

step 21: and determining a fault detection signal for detecting the antenna feed system based on the Error Vector Magnitude (EVM) index constraint of the service signal in the base station, the adjacent frequency band leakage ratio (ACLR) index constraint and the service signal.

Wherein the fault detection signal is the same as the transmission link of the traffic signal.

Optionally, in a base station antenna feed system of a wireless communication system, constraints of organizations such as 3GPP and ITU on EVM indexes and ACLR indexes of base station radio frequency signals may be as shown in tables 1 and 2. Table 1 is EVM index constraint and table 2 is ACLR index constraint.

As shown in table 1, the Physical Downlink Shared Channel (PDSCH) modulation schemes of the signals are different, and the corresponding EVM index constraints are different, for example, when the PDSCH modulation scheme of the signals is Quadrature Phase Shift Keying (QPSK), the EVM index constraint is 17.5%; when the PDSCH modulation scheme of the signal is 16quadrature amplitude modulation (16 QAM), the EVM index constraint is 12.5%; when the PDSCH modulation scheme of the signal is 64QAM, the EVM index constraint is 8%. As shown in table 2, when the carrier bandwidth of the signal is 1.4, 3.0, 5, 10, 15, 20, the lower limit of the ACLR index may be 45 dB.

TABLE 1 EVM index constraints

PDSCH modulation mode	EVM index constraint [% ]]
		QPSK	17.5％
16QAM	12.5％
		64QAM	8％

TABLE 2 ACLR index constraint

Carrier bandwidth [ MHz]	Lower limit of ACLR index
		1.4，3.0，5，10，15，20	45dB

At present, the radio frequency index constraints of Remote Radio Units (RRUs) in private network devices are left with margins. When a service carrier signal (i.e. a service signal) exists, a fault detection signal (which may be an OFDM signal) transmitted by a base station of a base station antenna feeder system is superimposed on the service signal, and the coexistence of the fault detection signal and the service signal during the antenna feeder fault detection in the base station antenna feeder system can be satisfied by restricting a power value of the fault detection signal.

Therefore, in the embodiment of the present application, based on conditions such as EVM index constraint, ACLR index constraint of a traffic signal in a base station, and the size of the traffic signal, a fault detection signal for detecting an antenna feed system may be determined, so that the traffic signal on which the fault detection signal is superimposed still satisfies EVM index constraint and ACLR index constraint.

It should be noted that, in this embodiment, the fault detection signal transmitted by the fault detection signal transmitter in the base station antenna feeder system and the service signal transmitted by the service signal transmitter have the same transmission link, that is, the fault detection signal is superimposed on the service signal and transmitted together.

Step 22: and performing frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal.

Optionally, in this embodiment, after determining the fault detection signal (for example, the power amplitude of the fault detection signal) according to the service signal and conditions such as the EVM index constraint and the ACLR index constraint of the service signal in the base station antenna feed system, the frequency mixing processing may be performed on the fault detection signal and the service signal in the base station antenna feed system, that is, the fault detection signal is superimposed on the service signal, so as to obtain the frequency mixing signal.

It should be noted that the signal used for fault detection of the antenna feed system in this embodiment is actually the mixing signal.

Step 23: and acquiring a forward feedback signal and a backward feedback signal of the mixed signal.

The forward feedback signal is a signal obtained after the mixed signal reaches a duplexer of the base station, and the backward feedback signal is a signal obtained after the mixed signal reaches an antenna feed system and is reflected back to the duplexer.

Optionally, in this embodiment, obtaining the forward feedback signal and the backward feedback signal of the mixed signal may be implemented by controlling a mode of the duplexer, which is specifically as follows:

1) and controlling the duplexer of the base station to be in the first switching mode, and acquiring the forward feedback signal by using the signal acquisition module of the base station, because the duplexer feeds the mixing signal back to the signal acquisition module when the duplexer is in the first switching mode.

Optionally, referring to fig. 1, when the duplexer is controlled to be in the first switching mode, and when the mixing signal reaches the duplexer after being processed by the first mixer and the power amplifier, the processed mixing signal is fed back to the second mixer at the duplexer, and then the mixing signal processed by the second mixer is obtained by the signal obtaining module, that is, the forward feedback signal is obtained, specifically, as shown by a thin dashed line in fig. 1.

2) And controlling the duplexer of the base station to be in the second switching mode, and acquiring the reverse feedback signal by using the signal acquisition module of the base station, wherein when the duplexer is in the second switching mode, the duplexer allows the mixed signal to pass through, but feeds back the signal which reaches the antenna feed system and is reflected back to the duplexer to the signal acquisition module.

Optionally, referring to fig. 1, when the duplexer is controlled to be in the second switching mode, and when the mixing signal is processed by the first mixer and the signal of the power amplifier and reaches the duplexer, the duplexer allows the processed mixing signal to pass through in the forward direction until reaching the antenna feed system, in the antenna feed system, when a fault point exists on a feeder line of the antenna feed system, the mixing signal reaching the antenna feed system is reflected back to the duplexer, and is fed back to the signal obtaining module by the duplexer, and is further obtained by the signal obtaining module, so that a backward feedback signal is obtained, which is specifically shown by a thick dotted line in fig. 1.

It should be noted that the duplexer is also called an duplexer, which is a special two-way three-terminal filter. The duplexer is the main accessory of the different-frequency duplex radio station and the relay station, and has the function of isolating the transmitted signal from the received signal and ensuring that the receiving and the transmitting can work normally at the same time. A duplexer typically consists of six band-stop filters, each resonant at the transmit and receive frequencies. The receive filter resonates at the transmit frequency and prevents transmit power from being injected into the receiver, and the transmit filter resonates at the receive frequency. That is, in the present embodiment, the flow direction of the signal reaching the duplexer is controlled by using the bidirectional three-terminal characteristic of the duplexer, and the above-described forward feedback signal and backward feedback signal are obtained.

Step 24: and carrying out data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system.

Optionally, in an embodiment of the application, after the forward feedback signal and the reverse feedback signal are obtained, a frequency domain response characteristic is obtained by solving a path corresponding to the forward feedback signal and the reverse feedback signal, so as to obtain a frequency domain response characteristic of the antenna feeder system, further obtain a time domain standing wave characteristic of the antenna feeder system, and further determine a fault detection result of whether the antenna feeder system is faulty according to the time domain standing wave characteristic.

Optionally, in a normal situation, the service signal is subjected to frequency mixing, up-conversion, power amplification and other processing through a radio frequency hardware channel of the base station, and finally sent to the antenna through the antenna feed system, and the antenna radiates to the space to complete signal transmission.

The existing antenna feeder fault detection method is that when the antenna feeder fault detection is carried out, a service signal is usually required to be stopped, parameters such as frequency mixing, up-conversion, amplification factor and the like in a base station are reset, then a fault detection signal transmitted by a fault detection signal transmitter is transmitted through a detection link, the fault detection signal is subjected to frequency mixing and down-conversion processing in a designed feedback link, finally forward feedback data and reverse feedback data are obtained through a data acquisition module, standing wave characteristics of an original antenna feeder system are obtained through data processing, and fault diagnosis and fault position positioning are completed.

It should be noted that, in the existing antenna feeder fault detection method, parameters such as frequency mixing, up-conversion, amplification factor and the like set in the base station may take any value as long as the parameters of fault detection can be satisfied, and the detection link refers to a transmission link of signals in the base station under the condition that no service signal participates.

In the embodiment of the application, when the fault detection signal is used for antenna feeder fault detection, while the existence of a service signal is maintained, a fault detection signal meeting the requirements of the base station antenna feeder system is determined by using the constraint allowance of the base station antenna feeder system for Adjacent Channel Leakage Ratio (ACLR) and vector amplitude Error (EVM) indexes, and then the fault detection signal is sent by a fault detection signal transmitter in the base station system, on one hand, the fault detection signal and the service signal are sent to an empty port of the antenna feeder system through the same transmission link to be radiated, so that the normal transmission of the service signal is not influenced, on the other hand, after the fault detection signal and the service signal are subjected to different processing at a duplexer, forward feedback data and reverse feedback data can be obtained through a data obtaining module, and then the signal processing is carried out to obtain the standing wave characteristic of the original antenna feeder system, therefore, fault diagnosis and fault location are completed.

In summary, the principle of the antenna feeder fault detection method is that a fault detection signal is sent by a fault detection signal transmitter, a signal acquisition module acquires the power of a forward feedback signal and the power of a reverse feedback signal, the forward feedback signal and the reverse feedback signal are processed according to a feedback standing wave fault detection principle, and finally an obtained standing wave detection result, namely a fault detection result of an antenna feeder system, is acquired.

The method for detecting the antenna feeder fault provided by the embodiment of the application determines a fault detection signal for detecting the antenna feeder system based on EVM index constraint, ACLR index constraint and a service signal of the service signal in a base station, performs frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal, obtains a forward feedback signal and a reverse feedback signal of the frequency mixing signal, and performs data processing on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system. According to the technical scheme, the fault detection signal for detecting the antenna feeder system is determined according to the EVM index constraint, the ACLR index constraint and the service signal of the service signal in the base station, the service signal does not need to be closed when the fault detection signal is utilized, the service signal is not influenced in the process of carrying out fault detection on the antenna feeder system, the user perception is reduced, and the user experience is improved.

Optionally, on the basis of the foregoing embodiment, fig. 3 is a schematic flow diagram of a second embodiment of the antenna feeder fault detection method provided in the embodiment of the present application. As shown in fig. 3, in the antenna feeder fault detection method of the present embodiment, the step 21 (determining a fault detection signal for detecting the antenna feeder system based on the error vector magnitude EVM index constraint of the traffic signal in the base station, the adjacent band leakage ratio ACLR index constraint and the traffic signal) may include the following steps:

step 31: and acquiring a service signal in a base station and frequency point information of the service signal.

Optionally, in the base station antenna feeder system, when fault detection needs to be performed on the antenna feeder system, a service signal normally transmitted in the base station is first obtained, frequency point information of the service signal is determined, and then frequency values that can be changed by the following first mixer and second mixer are calculated accordingly.

Step 32: and determining a digital up-conversion value and a digital down-conversion value of the base station according to the EVM index constraint, the ACLR index constraint and the frequency point information of the service signal.

Optionally, in this embodiment, after determining the frequency point information of the service signal, based on the EVM index constraint and the ACLR index constraint of the service signal in the base station, a digital up-conversion value and a digital down-conversion value of the base station are calculated, that is, the digital up-conversion value and the digital down-conversion value when the service signal and the fault detection signal are subjected to digital up-conversion and digital down-conversion in the base station.

Step 33: and determining a fault detection signal according to the service signal, the digital up-conversion value and the digital down-conversion value.

In this embodiment, it may be determined that the service signal is not affected and a fault detection signal for detecting a fault of the antenna feeder system may be completed according to the service signal, the determined digital up-conversion value and the determined digital down-conversion value, so as to control the power of the fault detection signal transmitter, so that the fault detection signal is transmitted, and thus, the antenna feeder fault detection is implemented on the premise that the service signal is not affected.

According to the antenna feeder fault detection method provided by the embodiment of the application, the service signal in the base station and the frequency point information of the service signal are obtained, the digital up-conversion value and the digital down-conversion value of the base station are determined according to the EVM index constraint, the ACLR index constraint and the frequency point information of the service signal, and the fault detection signal is determined according to the service signal, the digital up-conversion value and the digital down-conversion value. In the technical scheme, the fault detection signal determined according to the EVM index constraint, the ACLR index constraint and the service signal is used for detecting the fault of the antenna feeder system, so that a foundation is laid for realizing the fault detection of the antenna feeder on the premise of not influencing the service signal subsequently.

Optionally, on the basis of the foregoing embodiment, fig. 4 is a schematic flow diagram of a third embodiment of an antenna feeder fault detection method provided in the embodiment of the present application. As shown in fig. 4, in the embodiment of the present application, the step 24 (performing data processing on the forward feedback signal and the backward feedback signal to obtain the fault detection result of the antenna feeder system) may include the following steps:

step 41: and carrying out data processing on the forward feedback signal and the reverse feedback signal based on a standing wave principle to obtain standing wave characteristics of the antenna feed system.

Step 42: and determining a fault detection result according to the standing wave characteristics.

Optionally, in this embodiment, the standing wave principle refers to a phenomenon that when a fault point exists in a feeder line of the antenna feeder system, the mixing signal is reflected back when passing through the fault point, so that the reflected mixing signal is strengthened. The embodiment analyzes the frequency domain response characteristic of the antenna feed system by performing data processing on the obtained forward feedback signal and the obtained reverse feedback signal based on the standing wave principle, namely obtains the standing wave characteristic of the antenna feed system, and further analyzes the fault detection result of whether the antenna feed system is in fault or not.

Optionally, the embodiment of the present application is described with reference to the base station antenna feeder system shown in fig. 1. Referring to fig. 1, the thin dashed line represents the signal path of the feedforward signal whose frequency domain response characteristic function is H_fb(f) As shown, the thick dotted line represents a signal path of an inverse feedback signal, and the frequency domain response characteristic function of the inverse feedback signal path is represented by H_fw(f) The corresponding frequency domain response characteristic function is represented by H for a signal transmission path between a set top port of a base station and an antenna feeder fault point_cable(f) The frequency domain response characteristic function of the signal path from the duplexer of the base station to the set-top port of the base station and from the set-top port back to the duplexer is represented by H_dup(f) And (4) showing.

In this embodiment, the duplexer and the antenna feed system have the same frequency domain response characteristics in the downlink (base station transmission direction) and the uplink (base station reception direction) of the same frequency point, and are consideredFig. 1 shows a structure of a base station antenna feeder system, H_fb(f)、H_fw(f)、H_cable(f) And H_dup(f) The frequency domain response characteristics of the four parts satisfy the relationship shown in the following formula (1):

H_fw(f)＝H_fb(f)*H_aup(f)*H_cable(f) (1)

wherein H_dup(f) The base station antenna feeder system is a known quantity, which can be obtained through instrument testing during equipment production and stored in a file system in the base station antenna feeder system.

Alternatively, as can be seen from the above, in the base station antenna feed system, the fault detection signal allowed to be transmitted by the fault detection signal transmitter is already determined according to the ACLR index constraint and EVM index constraint of the base station on the traffic signal, and actually the power of the fault detection signal is determined (for example, a fixed OFDM signal with power P, the power of which is P)_{org_ofdm}). Optionally, in this embodiment, the frequency domain response characteristic of the fault detection signal may be F_{org_ofdm}Indicating a feed-forward signal (e.g., power P)_{fb_ofdm}) May be represented by F_{fw_ofdm}Indicating a feedback signal of inverse direction (e.g. power P)_{fw_ofdm}) May be represented by F_{fb_ofdm}Thus, in this example, H_fw(f) Can be represented by the following formula (2), H_fb(f) Can be expressed by the following formula (3):

H_fw(f)＝F_{fw_ofdm}/F_{org_ofdm}(2)

H_fb(f)＝F_{fb_ofdm}/F_{org_ofdm}(3)

thus, the relationships shown in the following equations (4), (5) and (6) can be derived in turn by combining the above equations (1), (2) and (3):

F_{fw_ofdm}/F_{org_ofdm}＝F_{fb_ofdm}/F_{org_ofdm}*H_dup(f)*H_cable(f) (4)

F_{fw_ofdm}/F_{fb_ofdm}＝H_dup(f)*H_cable(f) (5)

in the present embodiment, the results obtained as described above

F_{fb_ofdm}And known as H_dup(f) Can find H_cable(f) Therefore, the time domain signal can be obtained by performing inverse fourier transform on the formula (6), as shown in formula (7):

h_cable(t)＝ifft(H_cable(f)) (7)

therefore, in the embodiment of the present application, the h is a reflection generated when the signal passes through the failure point of the antenna feeder_cableAnd (t) represents a characteristic map of the actual return loss, wherein if points with larger values exist in the characteristic map, the antenna feeder system is considered to have a fault point, and if points with larger values do not exist in the characteristic map, the antenna feeder system is considered to have no fault.

In practical application, when the antenna feeder system is determined to have a fault, a tester can be informed in an alarm sending mode, and then fault positioning and solving are carried out in time.

The antenna feeder fault detection method provided by the embodiment of the application carries out data processing on the forward feedback signal and the reverse feedback signal based on a standing wave principle, obtains standing wave characteristics of an antenna feeder system, and further determines a fault detection result according to the standing wave characteristics. According to the technical scheme, the frequency domain response characteristic functions of the transmission paths are obtained, the frequency domain response characteristic functions of the signal transmission paths between the set top of the base station and the antenna feeder fault point can be obtained, the characteristic map of the actual return loss of the antenna feeder system can be obtained, finally, the fault detection result of whether the antenna feeder system has faults or not can be determined according to the characteristic map, and the fault detection of the antenna feeder system is realized while the service signals of the base station are not influenced.

Optionally, on the basis of the foregoing embodiment, fig. 5 is a schematic flow diagram of a fourth embodiment of the antenna feeder fault detection method provided in the embodiment of the present application. As shown in fig. 5, after step 24 (performing data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system), the method for detecting an antenna feeder fault according to the embodiment of the present application may further include the following steps:

step 51: and determining a fault point of the antenna feed system according to the fault detection result.

Optionally, with the embodiment shown in fig. 4, it can be seen that the obtained h is obtained_cableAnd (t) is a characteristic map of the actual return loss, when a point with a larger value exists in the characteristic map, the antenna feed system is considered to have a fault, and the point with the larger value is the fault point of the antenna feed system.

Step 52: and determining the position of the fault point in the antenna feed system according to the fault point and the signal transmission speed in the antenna feed system.

Wherein the signal transmission speed corresponds to the type of feeder line in the antenna feeder system.

In the embodiment of the application, when the fault point of the antenna feed system is determined, the fault time T corresponding to the fault point is obtained_maxAnd further according to the type of the cable adopted by the feeder line, the signal transmission speed corresponds to the type of the feeder line in the antenna feeder system, so that the signal transmission speed parameter v in the antenna feeder system can be determined according to the type of the cable_cableTherefore, the position of the fault point in the antenna feed system can be calculated and obtained through the following formula (8).

s＝T_max*v_cable(8)

According to the antenna feeder fault detection method provided by the embodiment of the application, after data processing is carried out on the forward feedback signal and the reverse feedback signal to obtain a fault detection result of the antenna feeder system, a fault point of the antenna feeder system is determined according to the fault detection result, and the position of the fault point in the antenna feeder system is determined according to the fault point and the signal transmission speed in the antenna feeder system.

Optionally, the following summarizes and explains the antenna feeder fault detection method provided in the embodiment of the present application: in the case of antenna feeder failure detection, it is first considered that a signal path for performing failure detection and a transmission path for a traffic signal are actually shared. Therefore, in the embodiment of the present application, in the case that the transmission path of the service signal already exists in the test process, the original setting parameters of the up-conversion module, the down-conversion module, and the mixing module need to be kept unchanged in the subsequent process of performing data processing on the fault detection signal and the mixing signal of the service signal. This is a precondition for not affecting the original traffic signal. In addition, it is necessary to constrain the power and signal bandwidth of the fault detection signal transmitted by the fault detection signal transmitter, so as to ensure that the Adjacent Channel Leakage Ratio (ACLR) and the vector magnitude Error (EVM) of the air interface exceed the index requirements specified by the system standard after the traffic signal and the fault detection signal are superimposed.

Optionally, in this embodiment of the present application, first obtaining frequency point information of a service signal in an antenna feed system of a base station, calculating a digital up-conversion (DUC) value and a digital down-conversion (DDC) value of a fault detection signal in the base station according to the frequency point information, ACLR index constraint and EVM index constraint, and then switching to a forward feedback channel side by setting a hardware link feedback channel switch in the base station, i.e. a mixed signal of the fault detection signal and the service signal is fed back to a signal obtaining module at a duplexer, and after setting a function enable of a hardware fault detection signal transmitter in the base station to transmit the fault detection signal and a function enable of the signal obtaining module, starting the fault detection signal transmitter to start transmitting the fault detection signal, the signal obtaining module obtains the forward feedback signal, and then setting the hardware link feedback channel switch in the base station to switch to the reverse feedback channel side, after setting the function enabling of the hardware fault detection signal transmitter in the base station to transmit the fault detection signal and the function enabling of the signal acquisition module, starting the fault detection signal transmitter to transmit the fault detection signal, and acquiring a reverse feedback signal by the signal acquisition module; and finally, performing data processing on the obtained forward feedback signal and the obtained reverse feedback signal to obtain a fault detection result, and finally recovering the fault detection test environment.

According to the embodiment of the application, the fault detection of the antenna feeder system is realized on the premise that the service signal is not influenced. For example, in practical applications, if Frequency Domain Reflectometry (FDR) is used for detecting the antenna feeder fault, the digital domain power of the OFDM signal is-46 dBFs. The effects on the EVM index and ACLR index of the traffic signal are as follows:

when the bandwidth of a service signal is 5M, the timeslot matching is 1+7 (i.e. the normal subframe matching is 1, and the special subframe matching is 7), and the power of the OFDM digital domain sent by the FDR test is-46 dBFs, ACLR data and EVM data of the service signal measured at the air interface of the antenna are respectively as follows:

the measured value of ACLR is-60.9 dBc, and meets the air interface constraint requirement which is not more than-45 dBc and is specified by 3GPP, and the measured value of EVM is 2.794 percent and meets the air interface constraint requirement which is 5 percent and is specified by 3 GPP.

Therefore, the antenna feeder fault detection method provided by the embodiment of the application can achieve the purposes that the service signal is not influenced by the base station antenna feeder fault detection and the perception is not generated to the user, and improves the core competitiveness of the system.

The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.

Fig. 6 is a schematic structural diagram of a first embodiment of an antenna feeder fault detection apparatus provided in the embodiment of the present application. The antenna feeder fault detection device is integrated in a base station antenna feeder system, and the base station antenna feeder system comprises: as shown in fig. 6, the base station and the antenna feeder system connected to each other, in an embodiment of the present application, provide an antenna feeder fault detection apparatus including: a determination module 61, a processing module 62 and a signal acquisition module 63.

The determining module 61 is configured to determine a fault detection signal for detecting the antenna feed system based on an Error Vector Magnitude (EVM) index constraint of a traffic signal in the base station, an adjacent frequency band leakage ratio (ACLR) index constraint and the traffic signal, where the fault detection signal is the same as a transmission link of the traffic signal;

the processing module 62 is configured to perform frequency mixing processing on the fault detection signal and the service signal to obtain a frequency mixing signal;

the signal obtaining module 63 obtains a forward feedback signal and a backward feedback signal of the mixed signal, where the forward feedback signal is obtained after the mixed signal reaches the duplexer of the base station, and the backward feedback signal is obtained after the mixed signal reaches the antenna feed system and is reflected back to the duplexer;

the processing module 62 is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feeder system.

Optionally, in a possible implementation manner of the embodiment of the present application, the determining module 61 is specifically configured to obtain the service signal and the frequency point information of the service signal in the base station, determine a digital up-conversion value and a digital down-conversion value of the base station according to the EVM index constraint, the ACLR index constraint and the frequency point information of the service signal, and determine the fault detection signal according to the service signal, the digital up-conversion value and the digital down-conversion value.

Optionally, in the above possible implementation manner of the embodiment of the present application, the signal obtaining module 63 is specifically configured to control the duplexer is located in the first switch mode, and obtains the forward feedback signal, when the duplexer is located in the first switch mode, the duplexer will the mixing signal is fed back to the signal obtaining module 63, and control the duplexer is located in the second switch mode, and obtains the reverse feedback signal, when the duplexer is located in the second switch mode, the duplexer allows the mixing signal to pass through, but will arrive the antenna feed system and be reflected back to the signal obtaining module 63.

Optionally, in another possible implementation manner of the embodiment of the present application, the processing module 62 is further configured to perform data processing on the forward feedback signal and the backward feedback signal to obtain a fault detection result of the antenna feed system, and specifically:

the processing module 62 is further configured to perform data processing on the forward feedback signal and the reverse feedback signal based on a standing wave principle, obtain standing wave characteristics of the antenna feed system, and determine the fault detection result according to the standing wave characteristics.

Optionally, in another possible implementation manner of the embodiment of the present application, the processing module 62 is further configured to determine a fault point of the antenna feeder system according to a fault detection result after performing data processing on the forward feedback signal and the reverse feedback signal to obtain the fault detection result of the antenna feeder system, and determine a position of the fault point in the antenna feeder system according to the fault point and a signal transmission speed in the antenna feeder system, where the signal transmission speed corresponds to a type of a feeder line in the antenna feeder system.

The implementation principle and technical effect of the antenna feeder fault detection device provided in the embodiment of the present application are similar to those of the method embodiments shown in fig. 2 to fig. 5, and are not described herein again.

It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Fig. 7 is a schematic structural diagram of a second embodiment of an antenna feeder fault detection apparatus provided in the embodiment of the present application. As shown in fig. 7, the antenna feeder fault detection apparatus may include: a processor 71 and a memory 72 and a computer program stored on the memory 72 and executable on the processor 71, the processor 71 when executing the program implementing the method as described in the embodiments of fig. 2 to 5.

Optionally, an embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is caused to execute the method according to the embodiment shown in fig. 2 to 5.

Optionally, an embodiment of the present application further provides a chip for executing the instruction, where the chip is configured to execute the method in the embodiment shown in fig. 2 to 5.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.