CN115333655B - Method and device for automatically detecting interference, knapsack base station and storage medium - Google Patents

Abstract

The embodiment of the application provides a method and device for automatically detecting interference, a knapsack base station and a storage medium. The method for automatically detecting the interference comprises the following steps: receiving or transmitting a first radio frequency signal in a target area based on the working frequency point; when the detection triggering condition is met, entering a detection mode; and detecting whether an interference signal exists in the target area in a protection time slot for receiving and transmitting the first radio frequency signal. The method for automatically detecting the interference can timely discover the same-frequency interference conditions existing in the same region during normal operation.

Description

Method and device for automatically detecting interference, knapsack base station and storage medium

Technical Field

The embodiment of the application relates to the technical field of wireless communication, in particular to a method and a device for automatically detecting interference, a knapsack base station and a storage medium.

Background

The development of wireless communication technology has pulled up the distance between people, makes people's life, work, amusement etc. more convenient. At present, the base station covers remote areas from cities, including mountain areas with dangerous terrains, and the network provided by the base station brings new experiences for people around the world.

In some cases, the base station may be damaged due to a natural disaster or a man accident, and may not provide a cell for normal use of the terminal. For example, when flood occurs, the base station in a certain area is flushed, so that the function of the base station is disabled, the cell is closed, at this time, the life of people is threatened by the flood, and the critical help-seeking network cannot be normally used because of the closed cell. Therefore, a small knapsack base station is arranged, so that the rescue and relief workers can conveniently carry and use the knapsack base station, a communication cell is timely established for the area, trapped workers can smoothly send out help seeking information, and the rescue workers can conveniently, accurately and effectively rescue the trapped workers.

However, in an area, there are cells established by other base stations, so that, after the communication cells are established by the knapsack base station, during normal operation, co-channel interference signals possibly existing in the same area need to be found timely so as not to influence normal communication.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a method, an apparatus, a knapsack base station, and a storage medium for automatically detecting interference, which can timely discover co-channel interference signals existing in the same area during normal operation.

In a first aspect, an embodiment of the present application provides a method for automatically detecting interference, where the method includes:

Receiving or transmitting a first radio frequency signal in a target area based on the working frequency point;

when the detection triggering condition is met, entering a detection mode;

and detecting whether an interference signal exists in the target area in a protection time slot for receiving and transmitting the first radio frequency signal.

In one possible implementation, entering the detection mode when the detection trigger condition is satisfied includes:

acquiring a current working period;

and when the current working period is judged to be in the preset detection period, entering a detection mode.

In one possible implementation, entering the detection mode when the detection trigger condition is satisfied includes:

acquiring the number of abnormal terminals in the target area, which are abnormal in connection state with the knapsack base station;

and when the number of the abnormal terminals is larger than or equal to a first threshold value, entering a detection mode.

In one possible implementation, detecting whether an interference signal is present in the target area includes:

receiving a second radio frequency signal in the target area based on the working frequency point;

acquiring signal power of a second radio frequency signal;

based on the signal power, it is determined whether the second radio frequency signal is an interference signal.

In one possible implementation, determining whether the second radio frequency signal is an interference signal based on the signal power includes:

Determining an effective value of the second radio frequency signal based on the signal power;

and under the condition that the effective value is less than or equal to a second threshold value, determining the second radio frequency signal as an interference signal.

In one possible implementation, determining the effective value of the second radio frequency signal based on the signal power includes:

when the signal power is judged to be smaller than or equal to the effective signal threshold value, updating the effective value of the first radio frequency signal according to a preset rule; or,

and when the signal power is judged to be larger than the effective signal threshold value and the difference value between the signal power and the effective signal threshold value is less than or equal to the signal fluctuation threshold value, updating the effective value of the first radio frequency signal according to a preset rule.

In a second aspect, an embodiment of the present application provides an apparatus for automatically detecting interference, including:

the radio frequency module is used for receiving or transmitting a first radio frequency signal in the target area based on the working frequency point;

the judging module is used for entering a detection mode when the detection triggering condition is met;

and the interference detection module is used for detecting whether an interference signal exists in the target area in the protection time slot of receiving and transmitting the first radio frequency signal.

In a third aspect, an embodiment of the present application provides a knapsack base station, including a radio frequency channel, a memory, and a processor, where the radio frequency channel is used to send and receive radio frequency signals, the memory stores a computer program, and the processor executes the computer program to implement the steps of the method for automatically detecting interference according to any one of the first aspects.

In one possible implementation, the radio frequency channel comprises a first receiving channel for receiving the second radio frequency signal in the detection mode; or, the radio frequency channel further comprises a second receiving channel for receiving a second radio frequency signal in the detection mode;

the first receiving channel is a channel for receiving a first radio frequency signal in a target area based on a working frequency point; the second receive channel is a backup channel for the first receive channel.

In a fourth aspect, embodiments of the present application provide a computer storage medium having a computer program stored thereon, which when executed by a processor performs the steps of the method of automatically detecting a disturbance as in any of the first aspects.

According to the method, the device, the knapsack base station and the storage medium for automatically detecting the interference, the possibility of the interference existing at present can be judged by setting the detection triggering condition, the detection mode is entered when the possibility is high, communication resources occupied by the detection mode are prevented from being triggered all the time, and after the knapsack base station enters the detection mode, whether the interference signal exists in the target area is detected only in the receiving and transmitting protection time slot of the first radio frequency signal, so that the same-frequency interference signal possibly existing in the same area can be found in time while normal communication service is not influenced for the terminal.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following detailed description of the present application will be presented in order to make the foregoing and other objects, features and advantages of the embodiments of the present application more understandable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application.

Fig. 2 is a schematic flow chart of a method for automatically detecting interference according to an embodiment of the present application.

Fig. 3 is another flow chart of a method for automatically detecting interference according to an embodiment of the present application.

Fig. 4 is a flowchart of a method for frequency point scanning according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an apparatus for automatically detecting interference according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a knapsack base station according to the embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the drawings are intended to cover a non-exclusive inclusion.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: there are three cases, a, B, a and B simultaneously. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Furthermore, the terms first, second and the like in the description and in the claims of the present application or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to expressly or implicitly include one or more such features.

In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., the terms "connected" or "coupled" of a mechanical structure may refer to a physical connection, e.g., the physical connection may be a fixed connection, e.g., by a fastener, such as a screw, bolt, or other fastener; the physical connection may also be a detachable connection, such as a snap-fit or snap-fit connection; the physical connection may also be an integral connection, such as a welded, glued or integrally formed connection. "connected" or "connected" of circuit structures may refer to physical connection, electrical connection or signal connection, for example, direct connection, i.e. physical connection, or indirect connection through at least one element in the middle, so long as circuit communication is achieved, or internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The base station establishes communication connection between the terminal equipment used by the user and the Internet through establishing a cell, so that the terminal equipment can mutually send messages to complete the functions of communication, surfing the Internet and the like. The terminal equipment can normally communicate and surf the internet only in the coverage area of the cell, so that whether the cell exists or not is directly related to whether the local user can contact with the outside or not.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application. As shown in fig. 1, a certain place is sunk into geological disasters such as house collapse and landslide, so that an operator base station 100 is damaged, communication service cannot be provided for a period of time, and the collapsed building forms ruins 200, so that people who cannot escape in time are trapped in the ruins 200 and cannot freely move, and therefore cannot walk out of the dilemma by themselves. In this case, the trapped person 300 needs to send help information, such as detailed trapped positions and rescue requirements, to the outside through the terminal 400 by using the network, so that the rescue workers can rescue timely and accurately. But the function of the operator base station 100 is destroyed at this time, and the terminal 400 at the location cannot send information to the outside until it is repaired. Thus, a cell can be established by the knapsack base station 1, and a communication service can be provided for the terminal 400 of the person in the ground.

In addition to the knapsack base station, there may be other operator base stations or other commercial base stations, where each base station establishes a cell according to a certain frequency point, and provides communication services for the terminal 400 of the user. The frequency point used by each base station to establish a cell cannot be the same as the frequency points of other cells existing in the cell, otherwise, signals among a plurality of cells can interfere with each other to influence normal communication.

Since the knapsack base station 1 cannot know the frequency point information used by other operator base stations or other commercial base stations existing in the ground. Therefore, the knapsack base station 1 needs to avoid collision with signals of cells currently existing in the area when the cells are established, and also needs to discover and avoid collision with frequency points used by some newly built cells or reestablished cells in time.

In order to solve the above-mentioned problems, the embodiment of the present application provides a method for automatically detecting interference, which is applied to a knapsack base station, and after the knapsack base station 1 establishes a cell in the place, the knapsack base station can timely detect whether the same-frequency interference exists in the current area when the cell works normally, so as to ensure that the cell can always provide normal communication service, so that the terminal 400 can communicate with the outside at any time, send help seeking information, and help the trapped person 300 to be rescued in time.

Fig. 2 is a schematic flow chart of a method for automatically detecting interference according to an embodiment of the present application. As shown in fig. 2, the method for automatically detecting interference provided in the embodiment of the present application may be applied to a knapsack base station, and specifically includes:

s101, receiving or transmitting a first radio frequency signal in a target area based on the working frequency point.

The frequency band is generally a frequency resource used by a communication system or an operator, specifically, a frequency point can be determined according to the frequency band for communication distributed to each operator, and the knapsack base station receives the radio frequency signal of the target area based on the frequency point. For example, the frequency band is 800MHz-820MHz, any one frequency point in the frequency band is a frequency point, for example, the frequency point is a frequency point of 810MHz, and the knapsack base station can receive a radio frequency signal with the frequency of 810MHz based on the frequency point of 810 MHz.

Alternatively, the frequency bin may also be a number for a fixed frequency. For example, in a global system for mobile communications (Global System for Mobile Communications, GSM) 900 system, uplink frequencies of 680 MHz-915 MHz are divided into 125 radio frequencies, such as 890MHz, 890.2MHz, 890.4MHz, … …, 915MHz, each frequency being numbered 1, 2, 3, … …, 125, respectively, with the numbers 1-125 being frequency points, each frequency point corresponding to one frequency. The knapsack base station can receive radio frequency signals with the frequency of 890.4MHz based on the frequency point 3.

Specifically, the knapsack base station provides communication service for the terminal in the target area by receiving or transmitting the first radio frequency signal. The target area is a signal coverage area of the knapsack base station, the working frequency point is a frequency point used by the knapsack base station for establishing a cell, and the knapsack base station receives and transmits a first radio frequency signal based on the working frequency point to provide normal communication service.

S102, entering a detection mode when the detection trigger condition is met.

It will be appreciated that in some cases, other commercial base stations may be used to establish cells in the target area, or the operator base station may be repaired after destruction and re-operated. If the frequency point of the commercial base station building cell is consistent with the working frequency point used by the knapsack base station building cell, or the frequency point of the operator base station is consistent with the working frequency point used by the knapsack base station building cell, the commercial base station and/or the operator base station cell can interfere with the knapsack base station building cell. Therefore, in order to find out the co-channel interference signal in time, a triggering condition is preset, so that when the triggering condition is met, the backpack base station is triggered to enter an interference detection mode. Alternatively, the triggering condition may be to determine whether the current working period of the knapsack base station is in a preset detection period, or the triggering condition may be to determine whether the number of terminals with abnormal connection states with the knapsack base station is greater than or equal to a first threshold value.

Optionally, when the triggering condition is that whether the current working period of the knapsack base station is in a preset detection period is judged, the current working period can be acquired, and when the current working period is judged to be in the preset detection period, the detection mode is entered.

The current working period can comprise a signal receiving and transmitting period and an idle period. The transceiving period refers to a period of time for receiving or transmitting the first radio frequency signal after the knapsack base station establishes a cell. The idle period refers to a period of time between two adjacent transceiving signal periods.

In this embodiment, since the knapsack base station is configured to enter the interference detection mode when the current working period is in the idle period, the preset detection period may be set to be N idle periods apart; wherein N is a positive integer.

For example, when N is 2, the preset detection period is 2 idle periods apart. Assuming that the current working period acquired by the knapsack base station is an idle period, and the idle period is the 2 nd idle period from the last time of entering the detection mode, which indicates that the current working period is not in the preset detection period, the detection mode is not entered. Assuming that the current working period acquired by the knapsack base station is an idle period, and the idle period is the 3 rd idle period from the last time of entering the detection mode, indicating that the knapsack base station is currently in the preset detection period, and entering the detection mode.

Whether the knapsack base station enters a detection mode or not is determined by whether the working period meets the preset detection period, whether the same-frequency interference signal exists in a periodic detection target area of the knapsack base station can be determined, the occurrence frequency of the automatic entering the detection mode can be adjusted according to the needs through the setting of the preset detection period, for example, when the number of the base stations visible in the target area is large, the possibility of the same-frequency interference is considered to be large, and at the moment, the preset detection period can be set to be a shorter period so as to improve the frequency of the detection interference and timely find the interference signal. Correspondingly, if the number of the base stations visible in the target area is smaller, the possibility of co-channel interference is considered to be smaller, and the preset detection period can be set to be a longer period at this time, so that the electricity consumption of the knapsack base station and the occupancy rate of hardware resources are reduced.

Optionally, when the triggering condition is that whether the number of terminals in abnormal connection with the knapsack base station is greater than or equal to a first threshold value is judged, the number of abnormal terminals in abnormal connection with the knapsack base station in the target area can be obtained, and when the number of abnormal terminals is greater than or equal to the first threshold value, a detection mode is entered.

Specifically, the knapsack base station and the terminal always keep a communication connection state, when the knapsack base station finds that communication abnormality exists between the knapsack base station and the connected terminal, the number of the abnormal terminals can be recorded, if the number of the abnormal terminals is larger than or equal to a first threshold value, the possibility that the terminal malfunctions is smaller, the possibility that the cell currently established by the knapsack base station interferes is larger, the knapsack base station can enter a detection mode, and whether an interference signal exists or not is judged.

For example, the first threshold may be 25. When the terminal and the knapsack base station are in abnormal communication, the knapsack base station updates the number of abnormal terminals, after the knapsack base station works for two minutes, 4 abnormal terminals appear, after the knapsack base station continues to work for a period of time, 23 terminals and the knapsack base station appear to be in abnormal communication, at the moment, the knapsack base station records that the number of the abnormal terminals is 27 altogether, and is larger than a first threshold value, the possibility that the 27 terminals all fail is small, so that the knapsack base station enters a detection mode to judge whether the communication with the terminal is abnormal because of interference signals with the same frequency in a target area.

By monitoring the abnormal terminal with abnormal connection state with the knapsack base station, the detection requirement can be timely found, the detection mode can be timely entered, and whether the same-frequency interference exists in the cell is judged.

Optionally, after the knapsack base station establishes the cell based on the working frequency point, modifying the state parameter to a first preset value, and when the state parameter is the first preset value, indicating that the knapsack base station enters a state that can be triggered by the detection mode. For example, the first preset value is 0, and the knapsack base station modifies the state parameter to 0 after the knapsack base station establishes the cell, and the state parameter is consistent with the first preset value, which indicates that the knapsack base station has entered the state of triggering the detection mode at any time. In the above case, the knapsack base station may enter the detection mode when the detection trigger condition is satisfied.

In the technical scheme of the embodiment of the application, the knapsack base station can enter the detection mode at any time according to needs, further, due to the consideration of saving communication resources, detection trigger conditions can be set, when the detection trigger conditions are met, the possibility that interference exists currently is high, and whether the interference exists is detected by entering the detection mode or not is required, so that countermeasures can be timely made.

After the knapsack base station enters the detection mode, S103 is executed:

s103, detecting whether an interference signal exists in a target area in a protection time slot of receiving and transmitting the first radio frequency signal.

Specifically, the communication mode of the cell established by the knapsack base station is a time division duplex mode, in the mode, the knapsack base station uses the same working frequency point to receive signals, and the uplink and the downlink use different protection time slots to communicate, so that the radio frequency signals of a target area can be received at the gap of the receiving and transmitting signals of the cell based on the target available frequency point, namely, in the time division duplex mode, the knapsack base station can detect whether the interference signals exist in the target area at any time according to the needs at the gap of the receiving and transmitting signals, and normal communication work is not influenced.

It can be understood that the cell established by the knapsack base station provides communication service based on the signal received by the working frequency point, and the knapsack base station detects whether the target area has an interference signal or not, and needs to receive the radio frequency signal of the target area based on the working frequency point. Therefore, in the detection mode, when the knapsack base station receives the signal, if the knapsack base station simultaneously transmits and receives the first radio frequency signal, the knapsack base station cannot avoid the signal transmitted by the cell built by the knapsack base station, so that the radio frequency signal received in the detection can not be determined to be the signal transmitted by the knapsack base station in normal operation or the signal transmitted by other base station cells, and whether the cell with the same-frequency interference exists in the target area can not be determined. Therefore, the gap between the receiving and transmitting signals of the cell enters the detection mode, and the situation of misjudgment caused by the fact that the radio frequency signals of the cell are received can be directly avoided.

Specifically, fig. 3 is another flow chart of a method for automatically detecting interference according to an embodiment of the present application. As shown in fig. 3, in this step, the knapsack base station may include:

s201, receiving a second radio frequency signal in the target area based on the working frequency point.

The knapsack base station can accurately receive the radio frequency signal corresponding to the frequency point in the target area based on the frequency point, so as to scan the radio frequency signal existing in the target area. When the knapsack base station does not transmit the first radio frequency signal, the knapsack base station receives the second radio frequency signal with the same frequency as the first radio frequency signal, so that the existence of an interference signal which has conflict with a cell established by the knapsack base station in a target area can be indicated. Therefore, the radio frequency signal in the target area can be directly received based on the working frequency point, and the purpose is clear, rapid and effective.

S202, acquiring signal power of the second radio frequency signal.

Specifically, the knapsack base station calculates the signal power of the second radio frequency signal according to the received second radio frequency signal. The higher the signal power, the stronger the signal strength of the second radio frequency signal, and the more likely the radio frequency signal is for communication. If the signal power is smaller, the signal may be a cell edge signal provided by a base station in a remote area or a channel noise signal of a receiver, where the received second radio frequency signal is not necessarily a radio frequency signal used for communication in other cells.

S203, based on the signal power, judging whether the second radio frequency signal is an interference signal.

The signal of a certain frequency sent by the cell established by the base station of the operator gradually loses the energy of the signal in the transmission process. If the cell is far from the target area, the signal power of the frequency used for communication provided by the cell in the target area is low, and an effective communication function cannot be provided for users in the target area. Therefore, whether the radio frequency signal corresponding to the signal power has an effective communication function in the target area can be seen through the signal power, whether the frequency point corresponding to the radio frequency signal can provide the corresponding communication function for the target area is judged, if the frequency point can provide the communication function for the target area, the fact that the frequency point is occupied by a certain base station is indicated, and the knapsack base station cannot establish a cell in the target area by using the frequency point.

Optionally, in determining whether the second radio frequency signal is an interference signal, S203 may include:

s2031, determining an effective value of the second radio frequency signal based on the signal power.

In this step, it may be determined whether the second rf signal is a valid signal by the signal power of the second rf signal, so as to determine whether the second rf signal is an interference signal. In particular, the probability of unoccupied second radio frequency signal is represented by an effective value, and the greater the effective value, the smaller the signal strength of the second radio frequency signal, and the less likely the second radio frequency signal is to be an interference signal.

Optionally, when the signal power is determined to be less than or equal to the effective signal threshold, updating the effective value of the second radio frequency signal according to a preset rule. Or when the signal power is judged to be larger than the effective signal threshold value and the difference value between the signal power and the effective signal threshold value is smaller than or equal to the signal fluctuation threshold value, updating the effective value of the second radio frequency signal according to a preset rule.

Alternatively, the effective signal threshold may be the background noise of the receiver of the knapsack base station, or the minimum power obtained from the radio frequency signal during cell transceiving. The effective signal threshold, noise floor and minimum power are all in units of decibel milliwatts (decibel relative to one milliwatt, dBm). It can be understood that the fixed background noise exists in the receiver of the knapsack base station when the knapsack base station is powered on, and the fluctuation is very small, so that whether the second radio frequency signal received by the receiver is only the working background noise of the receiver can be judged according to the background noise of the receiver or a value close to the background noise. If yes, the second radio frequency signal received at present is only working background noise, and effective radio frequency signals are not received actually, so that interference signals which collide with the knapsack base station cell do not exist.

For example, the effective signal threshold may be 30dBm, and if the signal power of the second radio frequency signal is 10dBm, the signal power of the second radio frequency signal is less than the effective signal threshold, and the effective value is updated according to a preset rule. If the signal power of the second radio frequency signal is 40dBm, judging again according to the signal fluctuation threshold value. For example, the signal fluctuation threshold is 5dBm, the difference between the signal power of the second radio frequency signal and the effective signal threshold is 10dBm, and the requirement of being less than or equal to the signal fluctuation threshold is not met, so that the effective value is not updated. If the signal power of the second radio frequency signal is 33dBm, the requirement that the signal power is smaller than or equal to the signal fluctuation threshold value is met, and the effective value is updated according to a preset rule.

Alternatively, the initial value of the effective value may be 0, or any other value suitable for the preset rule. The preset rule may be to add one to the effective value, and by adding one to the effective value or not, the effective value of the second radio frequency signal may be simply and effectively counted. For example, each interference detection process includes 5 scans on the working frequency point, each time the radio frequency signal obtained by scanning is counted by one effective value, when the initial effective value is 0, the preset rule is that the effective value is added by one, the effective value can be added by one when the radio frequency signal obtained by each time of scanning is the effective signal, and if the radio frequency signal obtained by 4 times of scanning in 5 times is the effective signal, the effective value of the second radio frequency signal finally obtained based on the working frequency point is 4.

The preset rule may also be determined based on a difference between the signal power of the second radio frequency signal and the effective signal threshold value, for example, when the difference is small, the effective value is high, for example, 0.9, and when the difference is large, the effective value is low, for example, 0.08. The effective value is determined by the difference value between the signal power and the effective signal threshold value, so that the signal powers with different magnitudes can be distributed in a weight mode, and the effectiveness of the second radio frequency signal is represented by the accurate effective value.

After determining the effective value of the second radio frequency signal, S2032 is performed:

s2032, determining that the second radio frequency signal is an interference signal if the effective value is less than or equal to the second threshold.

From the foregoing, it can be seen that the effective value indicates the likelihood that the second radio frequency signal is unoccupied, and therefore, the smaller the effective value, the more likely the second radio frequency signal is an interference signal. When the effective value is less than or equal to the second threshold, the second radio frequency signal may be determined to be an interfering signal.

Optionally, in the detection mode, the knapsack base station may receive the second radio frequency signal for multiple times based on the working frequency point, and accumulate and update the effective value for multiple times, so that the possibility of unoccupied second radio frequency signal can be determined through multiple times of judgment, and the false positive probability is reduced.

It can be understood that, in the case of determining the possibility of unoccupied second rf signal multiple times, when the set condition is satisfied, it is indicated that the number of scans and/or the scanning time of the operating frequency point reach the requirement, and as known from S2031, it is required to determine whether to update the effective value for each scan in the detection mode, so after the multiple scans of the operating frequency point are completed, the effective value may be an initial value or a value different from the initial value after at least one update.

For example, if the initial value of the effective value is 0, the effective value is added one to the effective value every time, and assuming that the second threshold is 3, the number of scans of the first frequency point by the knapsack base station is 5, where 4 times satisfy the requirement of updating the effective value, the final obtained effective value is 4, and at this time, the effective value is greater than the second threshold, so that it can be determined that the second radio frequency signal is an interference signal.

The misjudgment probability is reduced by judging whether the radio frequency signal is an effective signal or not, and the effective value of each scanning is accumulated by scanning the working frequency point for a plurality of times, so that the possible error of single scanning can be eliminated, and the judgment of the effective signal is more accurate.

According to the method for automatically detecting interference, provided by the embodiment of the application, the detection triggering condition is set, the possibility of interference existing at present can be judged, the detection mode is entered when the possibility is high, communication resources occupied by the detection mode are prevented from being triggered all the time, and the knapsack base station detects whether the interference signal exists in the target area only in the receiving and transmitting protection time slot of the first radio frequency signal after entering the detection mode, so that the same-frequency interference signal possibly existing in the same area can be found in time while normal communication service is not influenced for the terminal.

Further, considering that when an interference signal exists in the target area, the knapsack base station provides better communication service quality, in this embodiment, after S103, the method for automatically detecting interference may further include:

s104, if the knapsack base station detects that the interference signal exists in the target area, closing the current cell, and reselecting the frequency point to establish the cell.

It should be understood that when the frequency point corresponding to the second radio frequency signal scanned by the knapsack base station is the working frequency point, it is indicated that the cell established by the knapsack base station and the cells established by other base stations use the same frequency to communicate in the target area, so that the communication service in the target area conflicts. Therefore, when the knapsack base station monitors that the conflict/interference signal exists in the target area, the knapsack base station can reselect another available frequency point to establish a cell so as to avoid the conflict with other cells in the target area.

Therefore, in one implementation manner, before the knapsack base station establishes the cell or before the knapsack base station reselects the frequency point to establish the cell, the embodiment can also utilize the detection interference function of the knapsack base station to scan the target area, determine the frequency point used by the cell currently existing in the target area, and exclude the used frequency point from the preset frequency point, thereby selecting any frequency point from the unused frequency points as the working frequency point, and ensuring that the initial cell established by the knapsack base station or the cell reestablished by the knapsack base station does not collide with other cells currently existing in the target area.

Alternatively, when determining a frequency point not used by a cell currently existing in the target area, the frequency point may be recorded in the available frequency point list, and after any frequency point is selected as the working frequency point from the available frequency point list, the working frequency point may be deleted from the available frequency point list. Under the condition, when the knapsack base station detects the interference signal, after closing the cell, any frequency point is selected from the available frequency point list to reconstruct the cell, so that the cell can be more conveniently and accurately established.

Optionally, the frequency points in the preset frequency point list can be marked by setting a marking bit, and the frequency points can be distinguished into available frequency points and occupied frequency points. After selecting an operating frequency point to establish a cell, marking the frequency point as an occupied frequency point, and removing the mark of an available frequency point from the mark corresponding to the operating frequency point, so that the frequency point can be selected directly from the available frequency point list when the knapsack base station reestablishes the cell while the frequency point is convenient to manage, the operating frequency point does not need to be selected again, the frequency point can be managed through the type of the marked frequency point, and the corresponding frequency point can be acquired conveniently according to the requirement.

Optionally, the process of scanning the target area by using the interference detection function of the knapsack base station to determine the frequency point not used by the cell currently existing in the target area may include:

s301, receiving a third radio frequency signal of the target area based on a frequency point to be scanned, wherein the frequency point to be scanned is a first frequency point in preset frequency points.

The backpack base station can stop scanning after determining one or a preset number of available frequency points, can scan all frequency points in the preset frequency points, and determines all the available frequency points in the preset frequency points.

Optionally, fig. 4 is a schematic flow chart of a method for frequency point scanning according to an embodiment of the present application. As shown in fig. 4, when the knapsack base station needs to scan all the preset frequency points, step S301 receives a third radio frequency signal based on the frequency point to be scanned, and may further include:

s3011, judging whether all frequency points in the preset frequency points are scanned completely.

Alternatively, the preset frequency points may be scanned sequentially. For example, a plurality of frequency points in the preset frequency points may be in one-to-one correspondence with the serial numbers, for example, frequency point 1 corresponds to serial number 0, frequency point 2 corresponds to serial number 1, and so on, and frequency point n corresponds to serial number n-1. The knapsack base station scans the frequency points 1 according to the sequence number, and when the knapsack base station receives a third radio frequency signal based on the frequency point n or scans the sequence number n-1, the knapsack base station determines that all the frequency points are scanned. Or the knapsack base station judges whether the scanning is completed according to the times, and determines that the scanning is completed after the scanning is performed for n times, and when the scanning times are less than n times, the knapsack base station indicates that part of the preset frequency points are scanned. For example, when there are 150 preset frequency points, 100 cells in which the target area can exist are expected to be 100, and at least g available frequency points are preset, then 100+g frequency points can be scanned, and after the scanning is completed, 100 occupied frequency points can be eliminated, so that g available frequency points are obtained for establishing the cell.

Alternatively, the preset frequency points may be scanned non-sequentially. For example, the knapsack base station randomly selects any one frequency point from preset frequency points as a first frequency point, scans the first frequency point and marks the first frequency point as a scanned frequency point, or scans the first frequency point and deletes the first frequency point from a resource pool of the preset frequency point, and determines that the scanning is completed when the number of the remaining frequency points in the preset frequency point is k. The resource pool may store information of the preset frequency point in a table form, which is not limited in this application. k is equal to n-preset number-the number of cells existing at present, and k is 0 to indicate that all frequency points are scanned.

S3012, if yes, determining that scanning of all the preset frequency points by the knapsack base station is completed, and executing the processing of S101.

The purpose of the knapsack base station to scan the preset frequency points is to obtain the available frequency points for the knapsack base station to establish the cell. Therefore, after the knapsack base station scans all the frequency points, an available frequency point list can be obtained so as to select the frequency point for establishing the cell from the available frequency point list.

S3013, if not, namely the knapsack base station does not complete scanning of all frequency points of the preset frequency points, judging whether the scanning of the frequency points to be scanned meets the set condition.

The setting condition may be, for example, a preset number of scans or a preset scan time. For example, if the setting condition is that the scanning is preset for 5 times, the frequency point to be scanned needs to be scanned for 5 times; or the preset scanning time is 3 minutes, the frequency point to be scanned needs to be scanned for 3 minutes, and if each scanning is set to be 30 seconds, the scanning can be performed for 6 times within the preset scanning time of 3 minutes. That is, the number of scans may be set directly, or only the scan time may be set in consideration, or the number of scans may be set through the scan time and the scan interval, so as to satisfy the requirements of time and number of times at the same time.

S3014, if the received signal is satisfied, selecting a second frequency point from the preset frequency points as a frequency point to be scanned, and executing processing of receiving a third radio frequency signal of the target area based on the frequency point to be scanned.

Specifically, when the set condition is met, the scanning times and/or scanning time of the first frequency point are required, and the knapsack base station finishes scanning the first frequency point, so that the second frequency point can be scanned.

Optionally, a second frequency point adjacent to the first frequency point may be sequentially selected as the frequency point to be scanned, or any frequency point may be randomly selected from the resource pool in which the scanned frequency point is deleted as the frequency point to be scanned.

S3015, if not, continuing to execute the processing of receiving the third radio frequency signal of the target area based on the frequency point to be scanned in S301.

It can be understood that the scanning of the frequency point to be scanned does not meet the set condition, which means that the scanning of the frequency point is not finished, so that the frequency point is continuously scanned until the scanning times and/or time meet the set condition.

S302, acquiring the signal power of the third radio frequency signal.

And S303, adding the frequency points to be scanned to an available frequency point list under the condition that the third radio frequency signal is determined to be an effective signal based on the signal power.

The effective signal refers to a radio frequency signal which is not occupied in the target area, so that a frequency point corresponding to the radio frequency signal can be used as a frequency point of a knapsack base station to establish a cell. For example, the third radio frequency signal is an effective signal, which means that the third radio frequency signal exists in the target area, and the signal power of the third radio frequency signal is low, so that the terminal in the target area cannot establish a connection with the external network through the third radio frequency signal, and therefore the frequency point to be scanned corresponding to the third radio frequency signal is not used by the operator base station or other commercial base stations around the target area. The frequency points in the unused preset frequency points in the target area can be added to the available frequency point list, so that the knapsack base station can select the frequency points in the available frequency point list to establish a cell, and the cell and other cells stored in the target area are ensured not to generate interference or conflict.

Specifically, when judging whether the third radio frequency signal is an effective signal, the effective value of the third radio frequency signal may be determined first, and when judging that the effective value is greater than the second threshold, the third radio frequency signal is determined to be an effective signal. The determination of the effective value may refer to S2031, which is not described herein.

S304, a cell is built based on the working frequency points in the available frequency point list. The working frequency point is any frequency point in the available frequency point list.

As shown in fig. 1, after the backpack base station 1 establishes a cell based on the working frequency point at a certain location of the ruins 200, the backpack base station 1 may receive the radio frequency signal 500, such as a distress signal, sent by the terminal 400 of the trapped person 300, and may also send information to the terminal 400, so as to establish communication between the outside and the terminal 400.

Optionally, any frequency point can be randomly selected from the available frequency point list to serve as a working frequency point, and a frequency point with the smallest interference in the available frequency point list can be preferentially selected.

Through the steps, occupied frequency points and unoccupied frequency points can be accurately distinguished, any frequency point is selected as a working frequency point from the available frequency point list which is finally obtained and consists of at least one unoccupied frequency point, and the situation that the frequency point does not collide with other signals of a target area can be guaranteed.

It will be appreciated that only the receive channel of the knapsack base station is used in scanning the target area, and the knapsack base station is referred to in this scheme, including but not limited to 2G, 3G, 4G, 5G, and wireless network formats that may be provided by future operators.

The radio frequency signals in the target area are received for multiple times according to the single frequency point, and the effective value of each received radio frequency signal is judged, so that whether the radio frequency signals are effective signals or not is judged, errors possibly existing in the process of receiving the signals are eliminated, the available frequency points in the preset frequency points are accurately determined, an accurate available frequency point list is obtained, a knapsack base station can accurately establish a cell when the use information of the relevant frequency band of the target area is not known, the cell does not collide with the signals of the existing cellular cell of the target area, and the use requirement of a terminal in the target area is ensured.

Fig. 5 is a schematic structural diagram of an apparatus for automatically detecting interference according to an embodiment of the present application, and as shown in fig. 5, the embodiment of the present application further provides an apparatus for automatically detecting interference, which may include:

a radio frequency module 401, configured to receive or transmit a first radio frequency signal in a target area based on an operating frequency point;

a judging module 402, configured to enter a detection mode when a detection trigger condition is satisfied;

the interference detection module 403 is configured to detect whether an interference signal exists in the target area during a guard time slot of receiving and transmitting the first radio frequency signal.

Optionally, the judging module 402 is specifically configured to: acquiring a current working period;

And when the current working period is judged to be in the preset detection period, entering a detection mode.

Optionally, the judging module 402 is specifically configured to: acquiring the number of abnormal terminals in the target area, which are abnormal in connection state with the knapsack base station;

and when the number of the abnormal terminals is larger than or equal to a first threshold value, entering a detection mode.

Optionally, the radio frequency module 401 is further configured to: receiving a second radio frequency signal in the target area based on the working frequency point;

the interference detection module 403 is specifically configured to: acquiring signal power of a second radio frequency signal;

based on the signal power, it is determined whether the second radio frequency signal is an interference signal.

Optionally, the interference detection module 403 is specifically configured to: determining an effective value of the second radio frequency signal based on the signal power;

and under the condition that the effective value is larger than or equal to a second threshold value, determining the second radio frequency signal as an interference signal.

Optionally, the interference detection module 403 is specifically configured to: when the signal power is judged to be smaller than or equal to the effective signal threshold value, updating the effective value of the second radio frequency signal according to a preset rule; or,

and when the signal power is judged to be larger than the effective signal threshold value and the difference value between the signal power and the effective signal threshold value is less than or equal to the signal fluctuation threshold value, updating the effective value of the second radio frequency signal according to a preset rule.

Fig. 6 is a schematic structural diagram of a knapsack base station provided in the embodiment of the present application, as shown in fig. 6, the knapsack base station 1 provided in the embodiment of the present application may include a memory 10, a processor 11, and a radio frequency channel 13, where the radio frequency channel is used to transmit and receive radio frequency signals, the memory 10 stores a computer program 12, and the processor 11 implements steps in any of the above method embodiments when executing the computer program 12.

Optionally, the radio frequency channel includes a first receiving channel for receiving the second radio frequency signal in the detection mode; alternatively, the radio frequency channel further comprises a second receiving channel for receiving a second radio frequency signal in the detection mode. The first receiving channel is a channel for receiving a first radio frequency signal in a target area based on a working frequency point; the second receive channel is a backup channel for the first receive channel.

The knapsack base station can complete scanning of interference signals in a target area in a detection mode through a first receiving channel of the knapsack base station and a protection time slot of normal receiving and transmitting radio frequency signals, so that interference can be automatically detected, normal communication service is not prevented from being provided for the target area, and the maximum utilization of resources is achieved. By setting the standby channel, the signal receiving function and the interference detecting function of the knapsack base station can be further guaranteed, on one hand, the signal receiving function can be maintained when the first receiving channel of the knapsack base station fails, and on the other hand, the signal receiving function and the interference detecting function can be assigned to different receiving channels according to function division responsibilities, so that the work of the knapsack base station is orderly carried out.

It should be noted that, the knapsack base station 1 provided in this embodiment of the present application has a first receiving channel and/or a second receiving channel for scanning interference signals, and further has a memory 10, a processor 11, and a computer program 12 for implementing the steps of any of the foregoing method embodiments, so that the knapsack base station provided in this embodiment of the present application may also be used in a case where a communication mode of a cell is a frequency division duplex mode. Under the condition, the knapsack base station uses different radio frequency uplink and downlink frequency bands to complete communication and transmit and receive signals, so that when a cell is in an idle state, the signal of a target area can be received, or when the cell is in a non-idle state, the cell service is suspended, the signal of the target area is received, namely, in a frequency division duplex mode, when the knapsack base station detects whether the target area has an interference signal, the knapsack base station needs to ensure that the cell built by the knapsack base station does not send out a signal with the frequency being an operating frequency point by suspending the cell service.

The memory 10 in the embodiments of the present application may include a high-speed Random Access Memory (RAM), a nonvolatile memory (non-volatile memory) or a volatile memory, such as one or more magnetic storage devices, flash memory, or other nonvolatile solid-state memories, for example, flash memory (flash memory), hard disk, multimedia card, card memory (e.g., SD or DX memory, etc.), random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (erasable programmable read-only memory, EPROM), electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), programmable read-only memory (programmable read-only memory, PROM), magnetic memory, magnetic disk, optical disk, etc., and the RAM may include static RAM or dynamic RAM. In some embodiments, the memory 10 may be an internal storage unit of the knapsack base station 1, for example, a hard disk or a memory of the knapsack base station 1. In other embodiments, the memory 10 may also be an external storage device of the knapsack base station 1, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, or a Flash Card (Flash Card) provided on the knapsack base station 1. In some examples, memory 10 may further include memory remotely located with respect to knapsack base station 1, which may be connected to knapsack base station 1 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The processor 11 in the embodiments of the present application is generally used to perform the overall operation of the backpack base station 1, and the processor 11 may be a central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip. The processor 11 may also be other general purpose processors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor, such as a single-chip microcomputer or the like.

Embodiments of the present application also provide a computer readable medium, which may be a computer readable signal medium or a computer readable medium. A processor in a computer reads computer readable program code stored in a computer readable medium, such that the processor is capable of performing the functional actions specified in each step, or combination of steps, in the above-described method embodiments; a means for generating a functional action specified in each block of the block diagram or a combination of blocks.

The computer readable medium includes, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared memory or semiconductor system, apparatus or device, or any suitable combination of the foregoing, the memory storing program code or instructions, the program code including computer-operating instructions, the processor executing the method of automatically detecting a disturbance stored by the memory.

The definition of memory and processor may refer to the description of the embodiments of the computer device described above, and will not be repeated here.

In summary, the method, the device, the knapsack base station and the storage medium for automatically detecting the interference provided by the embodiment of the invention can judge the possibility of the interference at present by setting the detection triggering condition, enter the detection mode when the possibility is high, avoid the resources occupied by the detection mode being always triggered, and detect the interference signal of the target area only in the transceiving protection time slot of the first radio frequency signal after entering the detection mode, thereby ensuring the normal work of the cell, ensuring the communication service provided for the user not to be interrupted, and detecting the interference signal of the target area by utilizing the transceiving time slot of the time division duplex, so that the same-frequency interference signal possibly existing in the same area can be timely discovered while the normal communication service provided for the terminal by the cell is not influenced.

The terminal 400 according to the embodiment of the present application may be various electronic devices with a display screen, including but not limited to an intelligent terminal, a network device, or a device formed by integrating an intelligent terminal and a network device through a network. The smart terminal includes, but is not limited to, any mobile electronic product that can perform man-machine interaction with a user through a keyboard, a mouse, a remote controller, a touch pad, or a voice control device, for example, a desktop computer, a notebook computer, a palm computer, a smart phone, a tablet computer, etc., and any operating system may be used by the smart terminal, for example, an Android operating system of google company, an iOS operating system of apple company, a windows phone operating system of microsoft company, a plug (Symbian) operating system of nokia company, a BlackBerry OS operating system of BlackBerry company, a web OS operating system, a windows mobile operating system of microsoft company, a simmony operating system of wagong company, etc. The network device includes an electronic device capable of automatically performing numerical calculation and information processing according to a preset or stored instruction, for example, hardware of the network device includes, but is not limited to, a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a programmable gate array (Field-Programmable Gate Array, FPGA), a digital processor (Digital Signal Processor, DSP), an embedded device, and the like. Network devices include, but are not limited to, computers, network hosts, single network servers, multiple sets of network servers, or clouds of multiple servers. The Cloud is composed of a large number of computers or network servers based on Cloud Computing (Cloud Computing), which is one type of distributed Computing, a virtual supercomputer consisting of a group of loosely coupled computer sets.

Of course, those skilled in the art will appreciate that the above terminals are merely examples, and that other terminals now known or that may be hereafter presented are intended to be within the scope of the present application, and are incorporated herein by reference.

In several embodiments provided in the present application, it should be understood that the disclosed backpack base station, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The functional units or modules in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all or part of the technical solution contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of first, second, third, etc. does not denote any order, and the words are to be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specifically stated.

The above embodiments are merely for illustrating the technical solution 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (9)

1. A method of automatically detecting interference for use in a knapsack base station, the method comprising:

receiving or transmitting a first radio frequency signal in a target area based on the working frequency point;

when the detection triggering condition is met, entering a detection mode;

detecting whether an interference signal exists in the target area or not in a protection time slot for receiving and transmitting the first radio frequency signal;

detecting whether an interference signal exists in the target area comprises the following steps:

receiving a second radio frequency signal in the target area based on the working frequency point;

determining an effective value of the second radio frequency signal based on a signal power of the second radio frequency signal; wherein the effective value of the second radio frequency signal is used to represent a likelihood that the second radio frequency signal is unoccupied;

And under the condition that the effective value is less than or equal to a second threshold value, determining the second radio frequency signal as the interference signal.

2. The method according to claim 1, wherein entering the detection mode when the detection trigger condition is satisfied comprises:

acquiring a current working period;

and when the current working period is judged to be in a preset detection period, entering the detection mode.

3. The method according to claim 1, wherein entering the detection mode when the detection trigger condition is satisfied comprises:

acquiring the number of abnormal terminals in the target area, which are abnormal in connection state with the knapsack base station;

and when the number of the abnormal terminals is larger than or equal to a first threshold value, entering the detection mode.

4. The method of claim 1, wherein prior to determining the effective value of the second radio frequency signal based on the signal power of the second radio frequency signal, the method further comprises:

and acquiring the signal power of the second radio frequency signal.

5. The method of claim 4, wherein said determining the effective value of the second radio frequency signal based on the signal power comprises:

When the signal power is judged to be smaller than or equal to an effective signal threshold value, updating the effective value of the second radio frequency signal according to a preset rule; or,

and when the signal power is judged to be larger than the effective signal threshold value and the difference value between the signal power and the effective signal threshold value is smaller than or equal to the signal fluctuation threshold value, updating the effective value of the second radio frequency signal according to a preset rule.

6. An apparatus for automatically detecting interference applied to a knapsack base station, the apparatus comprising:

the radio frequency module is used for receiving or transmitting a first radio frequency signal in the target area based on the working frequency point;

the judging module is used for entering a detection mode when the detection triggering condition is met;

the interference detection module is used for detecting whether an interference signal exists in the target area or not in a protection time slot for receiving and transmitting the first radio frequency signal;

detecting whether an interference signal exists in the target area comprises the following steps:

receiving a second radio frequency signal in the target area based on the working frequency point;

determining an effective value of the second radio frequency signal based on a signal power of the second radio frequency signal; wherein the effective value of the second radio frequency signal is used to represent a likelihood that the second radio frequency signal is unoccupied;

And under the condition that the effective value is less than or equal to a second threshold value, determining the second radio frequency signal as the interference signal.

7. A backpack base station comprising a radio frequency channel for transceiving radio frequency signals, a memory, and a processor, said memory having stored therein a computer program, said processor executing the steps of the method for automatically detecting interference according to any of claims 1 to 5.

8. The backpack base station of claim 7 wherein the radio frequency channel comprises a first receiving channel for receiving a second radio frequency signal in a detection mode; or, the radio frequency channel further comprises a second receiving channel for receiving the second radio frequency signal in the detection mode;

the first receiving channel is a channel for receiving a first radio frequency signal in a target area based on a working frequency point; the second receiving channel is a spare channel for the first receiving channel.

9. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the method of automatically detecting interference according to any of claims 1 to 5.