Signal interference monitoring method and device, computer equipment and readable storage medium

Abstract

The invention relates to a signal interference monitoring method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring signal data of multidirectional signals in a current monitoring period through a multidirectional signal receiving antenna, wherein the signals are signals sent by each communication system in a second area adjacent to a first area where the base station is located; according to the signal data in each direction, determining the spacing distance between each communication system for sending the signal and the boundary line of the first area and the second area; screening a target signal based on the spacing distance corresponding to each communication system and the signal data in each direction, and determining a target signal receiving antenna corresponding to the target signal; constructing an electronic fence list based on each target signal receiving antenna; the electronic fence list is used for performing interference monitoring on the target signal. By adopting the method, high-risk signals can be focused, adjacent channel blocking and out-of-band interference can be found in time, and the communication quality of systems of two adjacent parties is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and in particular to a signal interference monitoring method and device, a computer device, a computer readable storage medium and a computer program product. BACKGROUND

[0002] When radio services are carried out in adjacent countries or border areas, frequency allocation and use principles agreed by both parties are usually followed to avoid mutual interference.

[0003] In the traditional technology, if public mobile communication networks are constructed in adjacent countries or border areas, and the frequency pairing mode of the FDD (Frequency Division Duplexing) systems of both parties is reverse use, a relatively wide frequency interval needs to be set as a guard band for the two systems to prevent signal interference between the two systems.

[0004] However, as the demand for mobile communication networks increases, the frequency interval is continuously reduced, which may cause adjacent frequency blocking and out-of-band interference between the systems of both parties, and thus the communication systems are affected. Therefore, it is necessary to monitor the signal interference of the FDD systems of the adjacent parties. SUMMARY

[0005] Therefore, it is necessary to provide a signal interference monitoring method and device, a computer device, a computer readable storage medium and a computer program product to solve the above technical problems.

[0006] In a first aspect, the present application provides a signal interference monitoring method, which is applied to a base station, a plurality of directional signal receiving antennas are preset on the base station, and the method comprises the following steps:

[0007] Signal data of multi-directional signals in a current monitoring period is obtained by the multi-directional signal receiving antennas, the signals being signals transmitted by each communication system in a second region adjacent to a first region where the base station is located;

[0008] The interval distances of each communication system from a border line between the first region and the second region are determined according to the signal data of each directional signal.

[0009] Target signals are screened based on the interval distances corresponding to each communication system and the signal data of each directional signal, and target signal receiving antennas corresponding to the target signals are determined.

[0010] An electronic fence list is constructed based on each target signal receiving antenna, and the electronic fence list is used for interference monitoring of the target signals.

[0011] In one of the embodiments, the method further comprises:

[0012] obtaining an electronic fence list in a current monitoring period; the target signal receiving antennas included in the electronic fence list correspond to target base stations;

[0013] controlling the target base stations included in the electronic fence list to retreat from occupying bandwidth resources of signals, and controlling the base stations outside the electronic fence list to occupy all bandwidth resources.

[0014] In one of the embodiments, the method further comprises:

[0015] uploading the electronic fence list to a core network, the core network being configured to aggregate and update the electronic fence lists of the base stations.

[0016] In one of the embodiments, the signal data comprises signal strength and frequency band information, and the interval distances of the communication systems from the border line are determined based on the signal data of the signals in each direction, comprising:

[0017] based on the frequency band information of the signals, the propagation attenuation coefficients and standard transmission powers of the signals in the border area are retrieved;

[0018] based on the signal strength of each signal and the standard transmission power corresponding to the signal, the first straight line distances of the communication systems from the base station are determined;

[0019] based on the first straight line distances of the communication systems from the base station and the second straight line distances of the base station from the border line, the interval distances of the communication systems from the border line are calculated.

[0020] In one of the embodiments, the target signal is screened based on the interval distances corresponding to the communication systems and the signal data in each direction, comprising:

[0021] based on the interval distances corresponding to the communication systems and a preset distance threshold, the signal data in a target direction smaller than or equal to the preset distance threshold is determined as valid data;

[0022] in each of the valid data, based on a preset signal strength threshold, target signal data greater than the signal strength threshold is screened, and the signal corresponding to the target signal data is determined as a target signal.

[0023] In one of the embodiments, the target signal data greater than the signal strength threshold is screened based on a preset signal strength threshold, comprising:

[0024] filter, based on a preset signal strength threshold, target signal data greater than the signal strength threshold from among the signal strengths corresponding to the effective data,

[0025] determine, based on similarity of uplink and downlink channel propagation characteristics, that a transmission signal of the current base station interferes with a target signal corresponding to the target signal data.

[0026] In one of the embodiments, the base station is provided with a first signal receiving antenna, a second signal receiving antenna, and a third signal receiving antenna respectively;

[0027] The first signal receiving antenna faces directly in front of the border line, the second signal receiving antenna faces the right side of the border line, and the third signal receiving antenna faces the left side of the border line.

[0028] The first signal receiving antenna, the second signal receiving antenna, and the third signal receiving antenna are used to receive signal data in three directions.

[0029] In a second aspect, the application further provides a signal interference monitoring device, which is applied to a base station, the base station is provided with multiple direction signal receiving antennas, and the device comprises:

[0030] A receiving module is configured to acquire signal data of multiple direction signals through the multiple direction signal receiving antennas, the signals being signals transmitted by each communication system in a second region adjacent to a first region where the base station is located;

[0031] A first determining module is configured to determine interval distances of each communication system transmitting the signals from the border line between the first region and the second region according to the signal data of signals in each direction;

[0032] A second determining module is configured to filter target signals based on the interval distances corresponding to each communication system and the signal data in each direction, and determine target signal receiving antennas corresponding to the target signals;

[0033] A constructing module is configured to construct an electronic fence list based on each target signal receiving antenna, and the electronic fence list is used for interference monitoring of the target signals.

[0034] In a third aspect, the application further provides a computer device comprising a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0035] Acquire signal data of multiple direction signals in a current monitoring period through multiple direction signal receiving antennas, the signals being signals transmitted by each communication system in a second region adjacent to a first region where the base station is located;

[0036] determine interval distances of each communication system sending the signals from the border line between the first area and the second area according to the signal data of the signals in each direction;

[0037] screen target signals based on the interval distances corresponding to each of the communication systems and the signal data in each direction, and determine target signal receiving antennas corresponding to the target signals;

[0038] construct an electronic fence list based on each of the target signal receiving antennas; the electronic fence list is used for interference monitoring of the target signals.

[0039] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the following steps:

[0040] obtain signal data of multi-direction signals in a current monitoring period through multi-direction signal receiving antennas, the signals being signals sent by each communication system in a second area adjacent to a first area where a base station is located;

[0041] determine interval distances of each communication system sending the signals from the border line between the first area and the second area according to the signal data of the signals in each direction;

[0042] screen target signals based on the interval distances corresponding to each of the communication systems and the signal data in each direction, and determine target signal receiving antennas corresponding to the target signals;

[0043] construct an electronic fence list based on each of the target signal receiving antennas; the electronic fence list is used for interference monitoring of the target signals.

[0044] In a fifth aspect, the present application provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the following steps:

[0045] obtain signal data of multi-direction signals in a current monitoring period through multi-direction signal receiving antennas, the signals being signals sent by each communication system in a second area adjacent to a first area where a base station is located;

[0046] determine interval distances of each communication system sending the signals from the border line between the first area and the second area according to the signal data of the signals in each direction;

[0047] screen target signals based on the interval distances corresponding to each of the communication systems and the signal data in each direction, and determine target signal receiving antennas corresponding to the target signals;

[0048] A list of electronic fences is constructed based on the target signal receiving antennas, and the list is used for interference monitoring of the target signals.

[0049] The signal interference monitoring method, device, computer equipment, computer readable storage medium and computer program product can obtain multi-directional signal data of each communication system in the adjacent second area in real time and actively through the multi-directional signal receiving antennas of the base station, greatly improving the timeliness and continuity of signal interference monitoring. Meanwhile, the interval distance between the communication system and the border line is determined through the signal data, the target signal with interference risk can be accurately screened and the corresponding target signal receiving antenna is locked, and then the list of electronic fences is constructed to realize targeted monitoring. This not only avoids resource waste caused by indiscriminate monitoring of all signals, but also focuses on high-risk signals to discover adjacent frequency blockage and out-of-band interference in time, effectively ensuring the communication quality of the adjacent systems, and is especially suitable for the border area communication scene with higher requirements for interference monitoring accuracy and efficiency after the frequency interval is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the description of the embodiments of the present application or the related art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other related drawings can be obtained by those skilled in the art without creative labor.

[0051] Figure 1 An application environment diagram of the signal interference monitoring method in an embodiment;

[0052] Figure 2 A flowchart of the signal interference monitoring method in an embodiment;

[0053] Figure 3 A flowchart of the signal interference monitoring method in an embodiment;

[0054] Figure 4 A flowchart of the electronic fence list uploading step in an embodiment;

[0055] Figure 5 A flowchart of the step of determining the interval distance between each communication system and the border line in an embodiment;

[0056] Figure 6 A flowchart of the step of screening the target signal in an embodiment;

[0057] Figure 7 A flowchart of the specific method of screening the target signal in an embodiment;

[0058] Figure 8 A structural block diagram of a signal interference monitoring device in an embodiment;

[0059] Figure 9 An internal structural diagram of a computer device in an embodiment. DETAILED DESCRIPTION

[0060] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0061] The signal interference monitoring method provided by the embodiments of the present application can be applied to the application environment as shown in Figure 1 Specifically, for the base stations in the border area, each base station is pre-configured with multi-directional signal receiving antennas, which are specially used for receiving signal data of the opposite side of the border. Taking a certain base station as an example, it can be provided with a total of three signal receiving antennas, i.e., a first signal receiving antenna, a second signal receiving antenna and a third signal receiving antenna. The first signal receiving antenna is directed to the front of the border line, the second signal receiving antenna is directed to the right side of the border line, and the third signal receiving antenna is directed to the left side of the border line. Through the cooperative work of the three antennas in different directions, the all-around coverage and monitoring of the signal of the opposite side of the border can be realized.

[0062] In an embodiment, as shown in Figure 2 A signal interference monitoring method is provided, and the embodiments of the present application take the method applied to a terminal as an example. It should be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and can be realized through the interaction of the terminal and the server. In the embodiments of the present application, the method includes the following steps:

[0063] In step 202, signal data of multi-directional signals in a current monitoring period is acquired through multi-directional signal receiving antennas.

[0064] The signals are signals transmitted by each communication system in a second area adjacent to a first area where the base station is located.

[0065] In implementation, when the radio service is carried out in the current neighboring country and the border area, the signal of the neighboring country needs to be monitored to ensure that the communication system of the neighboring country does not cause interference to the base station signal of the home country. Therefore, a multi-directional signal receiving antenna is arranged on the base station in the border area, so that the base station actively captures the signal data of the multi-directional signal in the current monitoring period relying on the preset multi-directional signal receiving antenna. The sending object of the signal data is the signal sent by each communication system in the second area (such as the neighboring country area) adjacent to the first area (such as the border area) where the base station is located. Subsequently, the base station realizes omnidirectional coverage collection of the signals around the border line through different directional antennas. In the collection process, the base station synchronously records the key data such as signal strength and signal frequency band, and according to the preset requirement of second-level interference active detection, the duration of each monitoring period in the time domain is short, which ensures the real-time performance of signal data acquisition and provides the latest data source for subsequent interference judgment.

[0066] Step 204, according to the signal data of each direction, determining the interval distance of each communication system sending signal from the border line of the first area and the second area.

[0067] In implementation, the base station determines the interval distance of each communication system sending signal from the border line of the two parties based on the collected signal data. Specifically, the base station calls the built-in calculation module, combines the standard signal data propagation rule, and substitutes the data such as signal strength, signal frequency band into the propagation model for operation. Since the signal will attenuate with distance in the propagation process, and the attenuation law is related to frequency band and propagation environment, the base station can deduce the interval distance of the signal sending end (i.e. the neighboring country communication system) from the border line by reverse deduction, and record the interval distance corresponding to each directional antenna receiving signal separately for judging whether the communication system belongs to a high-risk interference source.

[0068] Step 206, based on the interval distance corresponding to each communication system and the signal data of each direction, screening the target signal and determining the target signal receiving antenna corresponding to the target signal.

[0069] In implementation, the base station autonomously completes the screening of the target signal and determines the target signal receiving antenna corresponding to the target signal based on the determined interval distance of each communication system from the border line and the signal data in each direction. Specifically, the base station removes the signal of the communication system with the interval distance exceeding the threshold value according to the rule that the interval distance greater than the preset distance threshold (for example, 6 km) is invalid data, and only retains the signal with the interval distance within the threshold range. Then, the base station compares the intensity of the retained signal with the preset signal intensity threshold according to the similarity of the uplink and downlink channel propagation characteristics. If the signal intensity reaches or exceeds the threshold value, it indicates that the communication system corresponding to the signal may cause adjacent frequency blocking or out-of-band interference to the communication system in the first area where the base station is located. Therefore, this signal is the target signal, and the base station antenna receiving the target signal is determined as the target signal receiving antenna. The base station will mark the target signal and the corresponding antenna information.

[0070] In step 208, an electronic fence list is constructed based on each target signal receiving antenna.

[0071] The electronic fence list is used for interference monitoring of the target signal.

[0072] In implementation, after determining the target signal receiving antenna, the base station constructs an electronic fence list based on the target signal receiving antenna. The electronic fence list is used for interference monitoring of the target signal. Specifically, the base station integrates all the marked target signal receiving antenna and related information to form an initial electronic fence list. For example, if the first signal receiving antenna and the third signal receiving antenna of the base station are target signal receiving antennas, the electronic fence list records the cell information corresponding to the first signal receiving antenna and the third signal receiving antenna of the base station. At the same time, since the base station repeats the above steps 202 to 206 in a second-level cycle, whenever a new target signal receiving antenna is generated or the original target signal receiving antenna no longer meets the condition, the base station updates the electronic fence list in real time to ensure that the list content matches the current interference situation. In addition, the electronic fence list constructed by the base station is not only used for its own interference monitoring, but also uploaded to the background server for subsequent reference when multiple base stations jointly adjust the transmission parameters. At the same time, the base station monitors the signal transmission in the antenna coverage area in the list according to the electronic fence list, so as to ensure the controllable interference to the communication system of the neighboring country and as far as possible to retain the frequency resource use efficiency in the non-fence area.

[0073] The signal interference monitoring method, device, computer equipment, computer readable storage medium and computer program product can realize real-time and active acquisition of multi-directional signal data of each communication system in the adjacent second area through the multi-directional signal receiving antenna preset in the base station, greatly improving the timeliness and continuity of signal interference monitoring. Meanwhile, the interval distance between the communication system and the border line is determined through the signal data, the target signal with interference risk can be accurately screened and the corresponding target signal receiving antenna is locked, and then the electronic fence list is constructed to realize targeted monitoring, which not only avoids resource waste caused by indiscriminate monitoring of all signals, but also focuses on high-risk signals to discover adjacent frequency blockage and out-of-band interference in time, effectively guarantees the communication quality of the adjacent systems, and is especially suitable for the border area communication scene with higher requirements for interference monitoring accuracy and efficiency after the frequency interval is reduced.

[0074] In one exemplary embodiment, as shown in Figure 3 The method further includes:

[0075] Step 302: acquiring an electronic fence list in a current monitoring period.

[0076] The target signal receiving antenna in the electronic fence list corresponds to a target base station.

[0077] In implementation, the base station will actively acquire the latest electronic fence list in the current monitoring period. The electronic fence list is generated based on the signal collection, interference source distance calculation and target signal screening by the multi-directional signal receiving antenna of the base station before. The list clearly records the target signal receiving antennas that need to be controlled and the target base station information to which these antennas belong. These target base stations are all base stations that are determined to have interference risk to the communication system in the adjacent second area (such as the neighboring country area), which meets the core requirement of "carrying out interference control for the border area adjacent frequency coexistence scene" in the document. In the acquisition process, the base station will preferentially call the local electronic fence list generated after executing steps 102-108 in the current monitoring period, and if there are multiple base stations for collaborative monitoring, it will also synchronously receive the associated base station electronic fence information aggregated by the background server, to ensure that the acquired list can completely cover all target base stations with high interference risk and the corresponding antennas in the current period, and provide clear basis for subsequent accurate execution of interference avoidance measures.

[0078] Step 304: controlling the target base stations included in the electronic fence list to retreat the signal occupied bandwidth resources, and controlling the base stations outside the electronic fence list to occupy all bandwidth resources.

[0079] In implementation, after obtaining the electronic fence list of the current monitoring period, the signal bandwidth resource occupation of different types of base stations is controlled differently. On the one hand, for the target base stations contained in the electronic fence list, the base stations will actively control these target base stations to perform the fallback operation of signal bandwidth resource occupation according to the interference avoidance strategy of multi-station joint dynamic adjustment of transmission parameters. For example, "fallback 5MHz bandwidth", by reducing the bandwidth occupation of the target base station, the signal of the target base station reduces the adjacent frequency blocking and out-of-band interference to the second region communication system, ensures that the interference intensity is within a controllable range, and meets the requirements of legal use of frequency in the border area. On the other hand, for the base stations outside the electronic fence list, since they are determined to have no significant interference risk through the previous monitoring, these base stations are allowed to occupy all bandwidth resources, fully utilize the frequency resources to improve the service bearing capacity and frequency use efficiency of the mobile communication network in China, and realize the invention goal of maximizing the frequency utilization rate of China under the premise of protecting the safe operation of the adjacent second region communication system.

[0080] In the embodiment, the electronic fence list in the current monitoring period is obtained, so that the base station can accurately grasp the high interference risk object that needs to be controlled at present, and on this basis, the target base station in the electronic fence list is controlled to perform the fallback of signal bandwidth resource occupation, so that the adjacent frequency blocking and out-of-band interference of the target base station to the second region communication system can be reduced, the safe operation of the adjacent second region communication system in the border area is ensured, and the base stations outside the list without interference risk are controlled to occupy all bandwidth resources, so that the frequency resources can be fully utilized, and the legal and effective use of frequency in the border area is ensured.

[0081] In one exemplary embodiment, as shown in Figure 4 the method further includes:

[0082] Step 401, upload the electronic fence list to the core network, and the core network is used to aggregate and update the electronic fence list of each base station.

[0083] In implementation, after the base station completes the construction and update of its electronic fence list in the current monitoring period, it will actively upload the electronic fence list to the core network, thereby realizing the interference avoidance strategy requirement of multi-station joint dynamic adjustment of transmission parameters. In the electronic fence list uploaded by the base station, the target signal receiving antenna and the corresponding target base station information (for example, [A1, A3, B1]) determined by the base station are included, so as to ensure that the core network can clearly identify the high interference risk control object of each base station. Moreover, during the uploading process, the base station will follow the second-level data transmission rhythm to ensure that the electronic fence list received by the core network is always the current latest interference risk control data. After receiving the list uploaded by each base station, the core network will integrate all the electronic fence lists of the base stations, and cross-check and update them according to the geographical position, signal coverage overlap area and other information of each base station, so as to form a unified interference control list covering the entire border area.

[0084] In this embodiment, the core network can integrate all the high interference risk target base stations and the corresponding target signal receiving antenna information in the entire border area by summarizing the electronic fence lists uploaded by each base station, break through the information limitation of single base station control, form a global interference control view covering the border area, and avoid the interference control blind area caused by the limited monitoring range of a single base station. At the same time, the core network can dynamically update based on the summarized list data, cross-check and optimize the electronic fence range in combination with the geographical position, signal coverage overlap area and real-time interference monitoring result of each base station, ensure that the control object always matches the actual interference situation of the current border area, realize the legal and effective use of the frequency of the border area, and further improve the integrity and accuracy of the interference control of the communication system in the border area.

[0085] In one exemplary embodiment, as shown in Figure 5 the signal data includes signal strength and frequency band information, and step 204 includes steps 502 to 506. Among them:

[0086] Step 502, based on the frequency band information of each signal, the propagation attenuation coefficient and standard transmission power of each frequency band signal in the border area are called.

[0087] In implementation, the signal data of each direction signal acquired by the base station includes signal strength and frequency band information and the like, and the base station internally pre-stores a frequency band-attenuation coefficient corresponding database adapting to the geographical environment (such as terrain, vegetation and the like) of the border area, so that the base station calls the propagation attenuation coefficient of each frequency band signal in the border area and the standard transmission power based on the frequency band information of each signal. Specifically, the base station can accurately match the attenuation law of each frequency band signal during propagation in the border area; at the same time, the base station also calls the standard transmission power of the corresponding frequency band of the adjacent second area (such as the neighboring country area) communication system (the standard transmission power is an industry-recognized or pre-agreed benchmark value), which serves as the basic parameter for subsequent calculation and provides reliable parameter support for accurately deducing the position of the interference source.

[0088] Step 504, based on the received signal strength of each signal and the standard transmission power corresponding to the signal, determining the first straight line distance between each communication system sending the signal and the base station.

[0089] In implementation, the base station determines the first straight line distance between each communication system of the neighboring country sending the signal and the base station based on the received signal strength of each signal and the standard transmission power corresponding to the signal. In the implementation process, the base station will use the basic principle of wireless signal propagation, that is, the power attenuation amount of the signal from the transmitting end (the communication system of the neighboring country) to the receiving end (the base station) is related to the propagation distance, to calculate the power attenuation amount of the signal, and then substitute the power attenuation amount into the distance calculation formula based on the propagation attenuation coefficient to inversely calculate the straight line distance between the communication system sending the signal and the base station, that is, the first straight line distance.

[0090] Step 506, based on the first straight line distance between each communication system and the base station and the second straight line distance between the base station and the border line, calculating the interval distance of each communication system from the border line.

[0091] In implementation, after obtaining the first straight-line distance between each communication system and the base station, and since the second straight-line distance between the base station and the border line is known, the base station can further calculate the distance between each communication system and the border line based on the first straight-line distance and the second straight-line distance between the base station and the border line. Specifically, the base station pre-stores its own latitude and longitude coordinates and the geographical coordinates of the border line, and can accurately calculate its vertical distance from the border line (i.e., the second straight-line distance) through geographic information algorithms. Subsequently, the base station combines the spatial relationship between the first and second straight-line distances and uses geometric calculations to determine the actual distance between the communication system and the border line. For example, if the distance between the base station and the border line is 5km (second straight-line distance), the distance between a certain communication system and the base station is 3km (first straight-line distance), and the communication system is located on the side of the base station facing the border line, then its distance from the border line can be calculated to be 2km. The final distance will serve as the core basis for subsequently determining whether the communication system belongs to a "protected neighboring country ground station in the border area".

[0092] In this embodiment, by retrieving parameters to calculate the distance between the base station and the interference source, and then calculating the distance between the interference source and the border line, a progressive operation is performed to achieve a precise quantitative basis for judging signal interference, meet the interference control needs in the adjacent frequency coexistence scenario in the border area, and improve the accuracy of interference source location and screening.

[0093] In one exemplary embodiment, such as Figure 6 As shown, the specific processing steps of step 206 include:

[0094] Step 601: Based on the interval distance corresponding to each communication system and the preset distance threshold, the signal data in the target direction that is less than or equal to the preset distance threshold is determined as valid data.

[0095] In implementation, after calculating the distances between each communication system and the border line, the base station filters and determines valid data based on the corresponding distances of each communication system and a preset distance threshold. The preset distance threshold is set based on the service requirements for interference control in adjacent-channel coexistence scenarios in border areas, and only applies to neighboring countries' communication systems that are close to the border and may interfere with or be interfered with by my country's communication systems. The base station compares the distance between each communication system and the preset distance threshold one by one. Signal data in the target direction with a distance less than or equal to the preset distance threshold is marked as valid data, indicating that the communication system corresponding to these data belongs to the interference-related objects requiring key attention. Simultaneously, signal data with a distance greater than the preset distance threshold is judged as invalid data and discarded to avoid such data, which pose no actual interference risk, occupying subsequent processing resources.

[0096] Step 602, in each valid data, based on a preset signal strength threshold, target signal data greater than the signal strength threshold is screened, and the signal corresponding to the target signal data is determined as the target signal.

[0097] In implementation, the base station further screens each valid data, that is, the base station screens the target signal data in the valid data based on a preset signal strength threshold and determines the target signal. The preset signal strength threshold can be set based on the similarity principle of uplink and downlink channel propagation characteristics, which is used to determine whether the communication system corresponding to the valid data has actual interference capability. The determination method of the preset signal strength threshold is not limited in the embodiment. Specifically, the base station extracts the signal strength information in each valid data, compares it with the preset signal strength threshold, and divides the valid data with a signal strength greater than the signal strength threshold as target signal data. Then, the base station determines the signal corresponding to the target signal data as the target signal, and completes the accurate locking of the high-risk interference signal.

[0098] In the embodiment, the distance threshold is used to eliminate far-distance non-risk data, avoiding resource waste caused by too large interference evaluation range; the signal strength threshold is used to lock high interference risk signal, ensuring accurate focus of the control object, laying a foundation for improving frequency utilization rate, and effectively solving the problems of resource waste and inaccurate interference prevention and control in the traditional fixed protection band mode.

[0099] In one exemplary embodiment, as shown in Figure 7 the specific processing process of step 602 includes:

[0100] Step 701, based on a preset signal strength threshold, target signal data greater than the signal strength threshold is screened in the signal strength corresponding to each valid data.

[0101] In implementation, after obtaining the screened valid data, the base station screens the target signal data greater than the preset signal strength threshold in the signal strength corresponding to each valid data. Then, the base station processes each valid data one by one: first, the signal strength information (i.e. the actual strength value of the signal sent by the neighboring communication system to the base station) corresponding to the valid data is extracted, and then the strength value is compared with the preset signal strength threshold in real time; if the signal strength of a valid data is greater than the preset threshold, it means that the neighboring communication system corresponding to the data has reached the strength level that may cause adjacent frequency blocking or out-of-band interference with the signal sent by the base station, and the base station will immediately mark the valid data as target signal data, providing clear high-risk data support for subsequent further determination of interference relationship and construction of electronic fence list.

[0102] Step 702, based on the similarity of the uplink and downlink channel propagation characteristics, determine that the sending signal of the current base station exists interference to the target signal corresponding to the target signal data.

[0103] In implementation, the base station determines that the sending signal of the current base station exists interference to the target signal corresponding to the target signal data based on the similarity of the uplink and downlink channel propagation characteristics. Specifically, the uplink and downlink channels of wireless communication will exhibit similar attenuation laws and propagation characteristics in the same propagation environment, that is, if the signal (target signal) of the neighboring country communication system can reach the current base station with strong intensity (reflected in the signal intensity of the target signal data exceeding the threshold value), the sending signal of the current base station can also reach the neighboring country communication system with similar intensity. Based on this characteristic, the base station can determine by reverse deduction that its sending signal will cause adjacent frequency blocking or out-of-band interference to the neighboring country communication system corresponding to the target signal data, thereby explicitly determining the interference relationship between the current base station and the neighboring country communication system.

[0104] In this embodiment, high-intensity target signal data is screened out by a preset threshold value to avoid excessive control of low-intensity non-risk signals, and interference determination is performed based on the similarity of the uplink and downlink channel propagation characteristics, without the need for additional complex detection to explicitly determine the interference relationship between the base station and the neighboring country communication system, greatly improving the interference determination efficiency. It not only effectively prevents and controls interference and protects the safety of the neighboring country ground system, but also expands the bandwidth of the domestic mobile communication system and improves the frequency utilization rate.

[0105] In one specific embodiment, an example method of a signal interference monitoring method is provided, which specifically includes:

[0106] Step 1, the domestic mobile communication base stations (A, B, C…) set within a range of 6 km from the border line are all equipped with signal receiving antennas 1, 2, and 3 facing the front, left side, and right side of the border line as interference active detection devices for developing mobile communication services and receiving signals of the neighboring country ground system.

[0107] Step 2, taking border area base station A and base station B as an example, the base station A and base station B are provided with signal receivers of adjacent frequency neighboring country ground systems, that is, through the three antennas, the useful signals of the neighboring country system in three directions are received in real time, according to the received signal intensity and frequency band, the distance of the neighboring country interference system from the border line is preliminarily calculated according to the preset propagation model, the intensity and direction of the interference signal are recorded and judged, the signal intensity of the neighboring country received by the three antennas of the base station A is recorded as PA1, PA2, and PA3, the distance of the neighboring country ground system from the border line is calculated as DA1, DA2, and DA3, the signal intensity of the three directions received by the base station B is recorded as PB1, PB2, and PB3, and the distance of the neighboring country ground system from the border line is calculated as DB1, DB2, and DB3.

[0108] Step 3, according to the calculation of the distance between the neighboring ground system and the border line, if it is greater than the threshold of 6km, the station does not belong to the border area protected neighboring ground station, the data is defined as invalid data deletion, the interference system detected by base station A and base station B and the border line distance DA1, DA2, DA3, DB1, DB2, DB3, if DA2 and DB3 exceed 6km, it is defined as invalid data, the 2 antennas of base station A and the 3 antennas of base station B can not take any interference avoidance measures. The 1 antenna of base station A, the 3 antennas of base station A, the 1 antenna of base station B and the 2 antennas of base station B are valid data for the next step of interference evaluation.

[0109] Step 4, all base stations within 6km of the border area are built-in interference evaluation module, according to the similarity of uplink and downlink channel propagation characteristics, the interference level is estimated according to the preset railway useful signal strength received by the base station, and the interference threshold X is given. The neighboring country signal received by the 1 antenna and 3 antenna of base station A is compared with the interference threshold, if PA1>=X, PA3>=X, it is judged that the mobile communication system may have greater interference to the railway, the antenna 1 and antenna 3 of base station A are marked and included in the base station electronic fence list, at this time the electronic fence list is [A1 A3]. The neighboring country signal received by the 1 antenna and 2 antenna of base station B is compared with the interference threshold, if PB1>=X, it is judged that the mobile communication system may have greater interference to the railway, the antenna 1 of base station B is marked and included in the base station electronic fence list, if PB2<X, it is judged that the two systems will not produce interference, and the antenna 2 of base station B does not need to be included in the base station electronic fence list, at this time the electronic fence list is updated to [A1 A3 B1] and uploaded to the background server.

[0110] Step 5, after getting the electronic fence list of the current monitoring period (for example, 1s), the base station control enters the base station and the corresponding signal receiving antenna [A1 A3 B1] involved in the cell of the base station in the electronic fence list, which needs to jointly carry out a certain degree (such as 5MHz) of bandwidth resource rollback when carrying out public mobile communication business, to ensure that the interference is controllable, and the cells corresponding to the base stations not in the electronic fence list can occupy the full bandwidth when carrying out business, improving the frequency use efficiency.

[0111] Step 6, after the current monitoring period, all domestic mobile communication base stations within 6km of the border line carry out the interference judgment and update of the electronic fence list in the above steps 2 to 4, and carry out the bandwidth resource rollback in step 5 when carrying out business, if the updated electronic fence list is [A1 A2 B1 B2], the cells of the base stations in the updated electronic fence list are jointly carried out a certain degree (such as 5MHz) of bandwidth resource rollback, and the cells of the base stations not in the electronic fence list can occupy the full bandwidth when carrying out business, improving the frequency use efficiency.

[0112] Step 7, by means of real-time dynamic adjustment of the electronic fence list range and mobile communication system bandwidth fallback measures, to ensure controllable interference to the neighboring ground system, while improving the frequency utilization rate of the mobile communication system.

[0113] It should be understood that, although the steps in the flowcharts involved in the above embodiments are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately executed with at least some of the other steps or steps or stages in other steps.

[0114] Based on the same inventive concept, the embodiments of the present application also provide a signal interference monitoring device for implementing the above-mentioned signal interference monitoring method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more signal interference monitoring device embodiments provided below can refer to the limitations of the signal interference monitoring method in the above text, which will not be repeated here.

[0115] In one exemplary embodiment, as shown in Figure 8 A signal interference monitoring device 800 is provided, comprising: a receiving module 801, a first determining module 802, a second determining module 803, and a constructing module 804, wherein:

[0116] The receiving module 801 is configured to obtain signal data of multi-directional signals through a multi-directional signal receiving antenna, the signals being signals transmitted by each communication system in a second region adjacent to a first region where the base station is located;

[0117] The first determining module 802 is configured to determine the interval distance of each communication system transmitting signals from the border line between the first region and the second region according to the signal data of each direction;

[0118] The second determining module 803 is configured to filter target signals based on the interval distance corresponding to each communication system and the signal data of each direction, and determine the target signal receiving antenna corresponding to the target signals;

[0119] The constructing module 804 is configured to construct an electronic fence list based on each target signal receiving antenna; the electronic fence list is used for interference monitoring of the target signals.

[0120] In one of the embodiments, the apparatus 800 further comprises:

[0121] The acquisition module is configured to acquire an electronic fence list in a current monitoring period, and the target signal receiving antenna in the electronic fence list corresponds to a target base station.

[0122] The control module is configured to control the target base station in the electronic fence list to retreat from the signal occupied bandwidth resource, and control the base station outside the electronic fence list to occupy the entire bandwidth resource.

[0123] In one of the embodiments, the apparatus 800 further comprises:

[0124] The uploading module is configured to upload the electronic fence list to a core network, and the core network is configured to aggregate and update the electronic fence list of each base station.

[0125] In one of the embodiments, the signal data includes signal strength and frequency band information, and the first determination module 802 is specifically configured to retrieve the propagation attenuation coefficient and the standard transmission power of each frequency band in the border area based on the frequency band information of each signal.

[0126] Based on the received signal strength of each signal and the standard transmission power corresponding to the signal, the first straight-line distance between each communication system and the base station that transmits the signal is determined.

[0127] Based on the first straight-line distance between each communication system and the base station, and the second straight-line distance between the base station and the border line, the interval distance of each communication system from the border line is calculated.

[0128] In one of the embodiments, the second determination module 803 is specifically configured to determine the signal data of the target direction that is less than or equal to the preset distance threshold as valid data based on the interval distance corresponding to each communication system and the preset distance threshold.

[0129] In each valid data, based on the preset signal strength threshold, the target signal data greater than the signal strength threshold is screened, and the signal corresponding to the target signal data is determined as the target signal.

[0130] In one of the embodiments, the second determination module 803 is specifically configured to screen the target signal data greater than the signal strength threshold in the signal strength corresponding to each valid data based on the preset signal strength threshold,

[0131] Based on the similarity of the uplink and downlink channel propagation characteristics, it is determined that the transmission signal of the current base station interferes with the target signal corresponding to the target signal data.

[0132] In one of the embodiments, the first signal receiving antenna, the second signal receiving antenna, and the third signal receiving antenna are respectively arranged on the base station.

[0133] The first signal receiving antenna faces directly in front of the border line, the second signal receiving antenna faces the right side of the border line, and the third signal receiving antenna faces the left side of the border line.

[0134] The first signal receiving antenna, the second signal receiving antenna, and the third signal receiving antenna are used to receive signal data in three directions.

[0135] Each of the above modules can be implemented by software, hardware, and a combination thereof, in whole or in part. The above modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to call and execute the operations corresponding to the above modules by the processor.

[0136] In an exemplary embodiment, a computer device, which can be a server, has an internal structure diagram as shown in Figure 9 The computer device includes a processor, a memory, an input / output interface (I / O), and a communication interface. The processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The database of the computer device is used to store data. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals through network connection. The computer program is executed by the processor to implement a signal interference monitoring method.

[0137] Those skilled in the art can understand that Figure 9 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0138] In an exemplary embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the following steps:

[0139] Signal data of multi-direction signals in a current monitoring period is obtained through multi-direction signal receiving antennas, the signals being signals transmitted by each communication system in a second region adjacent to a first region where the base station is located.

[0140] determining interval distances of each communication system sending signals from the border line of the first region and the second region according to the signal data of each direction;

[0141] screening target signals based on the interval distances corresponding to each communication system and the signal data of each direction, and determining target signal receiving antennas corresponding to the target signals;

[0142] constructing an electronic fence list based on each target signal receiving antenna; the electronic fence list is used for interference monitoring of the target signals.

[0143] In an embodiment, the processor, when executing the computer program, further implements the following steps:

[0144] obtaining an electronic fence list in a current monitoring period; the target signal receiving antennas in the electronic fence list correspond to target base stations;

[0145] controlling the target base stations in the electronic fence list to back off from occupying bandwidth resources of signals, and controlling base stations outside the electronic fence list to occupy all bandwidth resources.

[0146] In an embodiment, the processor, when executing the computer program, further implements the following steps:

[0147] uploading the electronic fence list to a core network; the core network is used for aggregating and updating the electronic fence lists of the base stations.

[0148] In an embodiment, the signal data includes signal strength and frequency band information, and the processor, when executing the computer program, further implements the following steps:

[0149] based on the frequency band information of each signal, calling the propagation attenuation coefficients and standard transmission powers of signals of each frequency band in the border region;

[0150] based on the signal strength of each received signal and the standard transmission power corresponding to the signal, determining the first straight line distance of each communication system sending signals from the base station;

[0151] based on the first straight line distance of each communication system from the base station and the second straight line distance of the base station from the border line, calculating the interval distance of each communication system from the border line.

[0152] In an embodiment, the processor, when executing the computer program, further implements the following steps:

[0153] based on the interval distances corresponding to each communication system and the preset distance threshold, determining the signal data of the target direction smaller than or equal to the preset distance threshold as valid data;

[0154] In each valid data, based on a preset signal strength threshold, target signal data greater than the signal strength threshold is screened, and a signal corresponding to the target signal data is determined as a target signal.

[0155] In one embodiment, the processor, when executing the computer program, also implements the following steps:

[0156] Based on a preset signal strength threshold, target signal data greater than the signal strength threshold is screened from the signal strength corresponding to each valid data,

[0157] Based on the similarity of the uplink and downlink channel propagation characteristics, it is determined that the transmission signal of the current base station interferes with the target signal corresponding to the target signal data.

[0158] In one embodiment, a first signal receiving antenna, a second signal receiving antenna and a third signal receiving antenna are respectively arranged on the base station;

[0159] The first signal receiving antenna faces the straight front of the border line, the second signal receiving antenna faces the right side of the border line, and the third signal receiving antenna faces the left side of the border line.

[0160] The first signal receiving antenna, the second signal receiving antenna and the third signal receiving antenna are used to receive signal data in three directions.

[0161] In one embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the steps in each method embodiment described above.

[0162] In one embodiment, a computer program product is provided, and the computer program product includes a computer program. The computer program is executed by a processor to implement the steps in each method embodiment described above.

[0163] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware. The computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, the processes of the above-mentioned embodiment methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. The non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., without being limited thereto.

[0164] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered as the scope of the present application.

[0165] The above embodiments only express several implementation ways of the present application, and the description is specific and detailed, but it should not be understood as a limitation to the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method for monitoring signal interference, characterized in that, The method is applied to a base station, which has pre-installed multi-directional signal receiving antennas. The method includes: The signal data of multi-directional signals within the current monitoring period are acquired by a multi-directional signal receiving antenna. The signals are signals sent by various communication systems in a second area adjacent to the first area where the base station is located. Based on the signal data from each direction, determine the distance between each communication system transmitting the signal and the boundary line between the first region and the second region; Based on the interval distance and signal data in each direction corresponding to each of the communication systems, target signals are filtered and target signal receiving antennas corresponding to the target signals are determined. An electronic fence list is constructed based on the target signal receiving antennas described above; the electronic fence list is used for interference monitoring of the target signals.

2. The method according to claim 1, characterized in that, The method further includes: Obtain the list of electronic fences for the current monitoring period; the list of electronic fences includes the target base stations corresponding to the target signal receiving antennas. Control the target base stations included in the electronic fence list to roll back the signal bandwidth resources they occupy, and control the base stations outside the electronic fence list to occupy all bandwidth resources.

3. The method according to claim 1, characterized in that, The method further includes: The electronic fence list is uploaded to the core network, which is used to summarize and update the electronic fence lists of each base station.

4. The method according to claim 1, characterized in that, The signal data includes signal strength and frequency band information. Determining the distance between each communication system transmitting the signal and the boundary line between the first and second regions based on the signal data from each direction includes: Based on the frequency band information of each signal, the propagation attenuation coefficient and standard transmission power of each frequency band in the border area are retrieved; Based on the signal strength of each received signal and the standard transmission power corresponding to the signal, a first straight-line distance between each communication system transmitting the signal and the base station is determined; Based on the first straight-line distance between each communication system and the base station, and the second straight-line distance between the base station and the border line, the interval distance between each communication system and the border line is calculated.

5. The method according to claim 1, characterized in that, The process of filtering target signals based on the interval distance and signal data in each direction corresponding to each of the communication systems includes: Based on the interval distance corresponding to each communication system and the preset distance threshold, signal data in the target direction that is less than or equal to the preset distance threshold is determined as valid data; Among the valid data, target signal data with a signal strength greater than a preset signal strength threshold are selected based on a preset signal strength threshold, and the signal corresponding to the target signal data is determined as the target signal.

6. The method according to claim 5, characterized in that, The step of filtering target signal data that is greater than a preset signal strength threshold includes: Based on a preset signal strength threshold, target signal data with a signal strength greater than the threshold are selected from the signal strengths corresponding to each valid data set. Based on the similarity of uplink and downlink channel propagation characteristics, it is determined that the current base station's transmitted signal interferes with the target signal corresponding to the target signal data.

7. The method according to claim 1, characterized in that, The base station is equipped with a first signal receiving antenna, a second signal receiving antenna, and a third signal receiving antenna, respectively. The first signal receiving antenna faces directly in front of the border line, the second signal receiving antenna faces the right side of the border line, and the third signal receiving antenna faces the left side of the border line. The first signal receiving antenna, the second signal receiving antenna, and the third signal receiving antenna are used to receive signal data from three directions.

8. A signal interference monitoring device, characterized in that, The device is applied to a base station, which has a multi-directional signal receiving antenna pre-installed on it. The device includes: The receiving module is used to acquire signal data of multi-directional signals through a multi-directional signal receiving antenna, wherein the signals are signals sent by various communication systems in a second area adjacent to the first area where the base station is located; The first determining module is used to determine the distance between each communication system transmitting the signal and the boundary line of the first region and the second region based on the signal data of the signals from each direction. The second determining module is used to filter target signals and determine the target signal receiving antenna corresponding to the target signal based on the interval distance and signal data in each direction corresponding to each of the communication systems. A construction module is used to construct an electronic fence list based on each of the target signal receiving antennas; the electronic fence list is used for interference monitoring of the target signals.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

11. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

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