CN115567971A

CN115567971A - Uplink interference detection method, device and storage medium

Info

Publication number: CN115567971A
Application number: CN202211175014.8A
Authority: CN
Inventors: 吕婷; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-03

Abstract

The application provides an uplink interference detection method, an uplink interference detection device and a storage medium, relates to the technical field of communication, and can solve the problem of low uplink interference detection efficiency in the related technology. The method comprises the following steps: acquiring interference detection parameters of a plurality of terminals accessed to target access network equipment; the interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods; under the condition that the occupation ratio of interference terminals in a plurality of terminals is greater than a preset number threshold, dividing the interference terminals in the plurality of terminals into a plurality of interference terminal clusters based on an uplink signal arrival angle; and aiming at each first interference terminal cluster in the plurality of interference terminal clusters, determining the position of an interference source of the interference equipment corresponding to the first interference terminal cluster according to the terminal position, the uplink signal transmission delay and the uplink signal receiving power. The method and the device can improve the efficiency of uplink interference detection.

Description

Uplink interference detection method, device and storage medium

Technical Field

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

Background

Spectrum resources are scarce resources in a mobile communication system, and as the number and types of network devices accessing the same spectrum in the mobile communication system increase, the problem of interference in the mobile communication system also becomes more and more serious.

In order to detect the position of an interference source causing interference to access network equipment, the related art generally detects the interference in a mobile communication network by means of manual field measurement, however, in this scheme, a relevant person is required to carry a professional measuring instrument to reach a region to be detected for field measurement, and therefore, the detection efficiency of interference positioning is low.

Disclosure of Invention

The application provides an uplink interference detection method, an uplink interference detection device and a storage medium, which can solve the problem of low detection efficiency of interference positioning in the related technology and improve the uplink interference detection efficiency.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a method for detecting uplink interference, where the method includes: acquiring interference detection parameters of a plurality of terminals accessed to target access network equipment; the interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods; under the condition that the occupation ratio of interference terminals in a plurality of terminals is greater than a preset number threshold, dividing the interference terminals in the plurality of terminals into a plurality of interference terminal clusters based on an uplink signal arrival angle; the interference terminal in the interference terminal cluster is a terminal which transmits uplink signals through the same interference equipment; and aiming at each first interference terminal cluster in the plurality of interference terminal clusters, determining the position of an interference source of the interference equipment corresponding to the first interference terminal cluster according to the terminal position, the uplink signal transmission delay and the uplink signal receiving power.

Based on the technical scheme, the uplink interference detection device in the application can acquire the interference detection parameters of a plurality of terminals accessed to the target access network equipment. The interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods. Therefore, the uplink interference detection device can determine an interference terminal cluster corresponding to the interference device causing uplink interference to the access network device through the uplink signal arrival angle, and determine the interference source position of each interference device based on the terminal position of the interference terminal in the interference terminal cluster, the uplink signal transmission delay and the uplink signal receiving power. Compared with the scheme that relevant personnel carry professional measuring instruments to reach the area to be detected for field measurement in the related technology, the method and the device achieve detection and positioning of the interference equipment by obtaining relevant parameter information of the terminals, can automatically identify interference caused by the interference equipment, automatically position the position of the interference source, and improve uplink interference detection efficiency.

With reference to the foregoing first aspect, in a possible implementation manner, the method includes: transmitting an interference detection indication message to a plurality of terminals; the interference detection indication message is used for indicating the terminal to send a detection reference signal according to preset power at each unit time interval in an interference detection time period; receiving detection reference signals from a plurality of terminals; and determining interference detection parameters of the plurality of terminals according to the detection reference signals.

With reference to the first aspect, in a possible implementation manner, the method includes: determining each interference terminal cluster in a plurality of interference terminal clusters as an interference terminal cluster meeting a first preset condition; the first preset condition includes: the mean value of the difference values of the arrival angles of the uplink signals between the first terminal and the second terminal in a plurality of unit time periods is smaller than a preset included angle threshold value; the first terminal is any interference terminal in the interference terminal cluster; the second terminal is an interfering terminal except the first terminal in the interfering terminal cluster.

With reference to the foregoing first aspect, in a possible implementation manner, the method includes: and inputting the arrival angle of the uplink signal of each interference terminal into the clustering model to obtain a plurality of interference terminal clusters.

With reference to the foregoing first aspect, in a possible implementation manner, the method further includes: determining an average value of uplink signal receiving power of each third terminal in the plurality of terminals and an average value of access network equipment distance; the average distance of the access network equipment is the average distance between the third terminal and the target access network equipment in a plurality of unit time periods; taking a third terminal which meets a second preset condition in the plurality of terminals as an interference terminal; the second preset condition includes: the average value of the uplink signal receiving power of the third terminal is greater than a first preset power threshold value, and the average value of the distance between the access network equipment is greater than a first preset distance threshold value; or, the second preset condition includes: the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value; the fourth terminal is a terminal of which the difference value between the average distance value of the access network equipment of the plurality of terminals and the average distance value of the access network equipment of the third terminal is smaller than a second preset distance threshold value.

With reference to the first aspect, in a possible implementation manner, the method includes: for each target interference terminal in the first interference terminal cluster, determining an uplink signal transmission distance according to the uplink signal transmission delay of the target interference terminal; determining a plurality of candidate positions of interference equipment corresponding to a first interference terminal cluster according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position; and determining the position of the interference source of the interference equipment corresponding to the first interference terminal cluster from the plurality of candidate positions based on the uplink signal received power.

With reference to the first aspect, in a possible implementation manner, the method includes: for each target interference terminal, determining a target track according to the corresponding uplink interference signal transmission distance, the terminal position and the position of the target access network equipment; the interference equipment corresponding to the first interference terminal cluster is positioned on the target track; and taking the intersection points of the target tracks as a plurality of candidate positions of the interference equipment corresponding to the first interference terminal cluster.

With reference to the first aspect, in a possible implementation manner, the method includes: for each candidate location, performing a first operation to determine weights for a plurality of candidate locations; the first operation includes: calculating a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit time periods and the uplink signal receiving power for each target interference terminal; taking the mean value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position; and determining the interference source position of the interference equipment corresponding to the first interference terminal cluster as the candidate position with the minimum weight in the candidate positions.

In a second aspect, the present application provides an uplink interference detection apparatus, including: a communication unit and a processing unit; a communication unit, configured to obtain interference detection parameters of multiple terminals accessing a target access network device; the interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods; the processing unit is used for dividing the interference terminals in the plurality of terminals into a plurality of interference terminal clusters based on the arrival angle of the uplink signal under the condition that the occupation ratio of the interference terminals in the plurality of terminals is greater than a preset number threshold; the interference terminal in the interference terminal cluster is a terminal which transmits uplink signals through the same interference equipment; and the processing unit is further configured to determine, for each first interfering terminal cluster in the multiple interfering terminal clusters, an interfering source position of the interfering device corresponding to the first interfering terminal cluster according to the terminal position, the uplink signal transmission delay, and the uplink signal receiving power.

With reference to the second aspect, in a possible implementation manner, the communication unit is configured to send an interference detection indication message to a plurality of terminals; the interference detection indication message is used for indicating the terminal to send a detection reference signal according to preset power at each unit time interval in an interference detection time period; a communication unit, further used for receiving detection reference signals from a plurality of terminals; and the processing unit is further used for determining interference detection parameters of the plurality of terminals according to the detection reference signals.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: determining each interference terminal cluster in a plurality of interference terminal clusters as an interference terminal cluster meeting a first preset condition; the first preset condition includes: the mean value of the difference values of the arrival angles of the uplink signals between the first terminal and the second terminal in a plurality of unit time periods is smaller than a preset included angle threshold value; the first terminal is any interference terminal in the interference terminal cluster; the second terminal is an interfering terminal except the first terminal in the interfering terminal cluster.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: and inputting the arrival angle of the uplink signal of each interference terminal into the clustering model to obtain a plurality of interference terminal clusters.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: determining an average value of uplink signal receiving power of each third terminal in the plurality of terminals and an average value of access network equipment distance; the average distance of the access network equipment is the average distance between the third terminal and the target access network equipment in a plurality of unit time periods; taking a third terminal which meets a second preset condition in the plurality of terminals as an interference terminal; the second preset condition includes: the average value of the uplink signal receiving power of the third terminal is larger than a first preset power threshold value, and the average value of the distance between the access network equipment is larger than a first preset distance threshold value; alternatively, the second preset condition includes: the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value; the fourth terminal is a terminal of which the difference value between the average distance value of the access network equipment of the plurality of terminals and the average distance value of the access network equipment of the third terminal is smaller than a second preset distance threshold value.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: for each target interference terminal in the first interference terminal cluster, determining an uplink signal transmission distance according to the uplink signal transmission delay of the target interference terminal; determining a plurality of candidate positions of interference equipment corresponding to a first interference terminal cluster according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position; and determining the position of the interference source of the interference equipment corresponding to the first interference terminal cluster from the plurality of candidate positions based on the uplink signal received power.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: for each target interference terminal, determining a target track according to the corresponding uplink interference signal transmission distance, the terminal position and the position of the target access network equipment; the interference equipment corresponding to the first interference terminal cluster is positioned on the target track; and taking the intersection points of the target tracks as a plurality of candidate positions of the interference equipment corresponding to the first interference terminal cluster.

With reference to the second aspect, in a possible implementation manner, the processing unit is configured to: for each candidate location, performing a first operation to determine weights for a plurality of candidate locations; the first operation includes: calculating a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit time periods and the uplink signal receiving power for each target interference terminal; taking the mean value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position; and determining the interference source position of the interference equipment corresponding to the first interference terminal cluster as the candidate position with the minimum weight in the plurality of candidate positions.

In a third aspect, the present application provides an uplink interference detection apparatus, including: a processor and a communication interface; the communication interface is coupled to a processor, and the processor is configured to execute a computer program or instructions to implement the uplink interference detection method as described in the first aspect and any one of the possible implementation manners of the first aspect.

In a fourth aspect, the present application provides a computer-readable storage medium, where instructions are stored, and when the instructions are executed on a terminal, the terminal is caused to perform the uplink interference detection method as described in the first aspect and any one of the possible implementation manners of the first aspect.

In a fifth aspect, the present application provides a computer program product containing instructions that, when run on an uplink interference detection apparatus, cause the uplink interference detection apparatus to perform the uplink interference detection method as described in the first aspect and any one of the possible implementation manners of the first aspect.

In a sixth aspect, the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the uplink interference detection method as described in the first aspect and any possible implementation manner of the first aspect.

In particular, the chip provided herein further comprises a memory for storing computer programs or instructions.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with or without a processor of the apparatus, and is not limited in this application.

In a seventh aspect, the present application provides an uplink interference detection system, including: an uplink interference detection apparatus and a plurality of terminals, wherein the uplink interference detection apparatus is configured to perform the uplink interference detection method as described in the first aspect and any possible implementation manner of the first aspect.

For the descriptions of the second to seventh aspects in the present application, reference may be made to the detailed description of the first aspect; moreover, the beneficial effects described in the second to seventh aspects may refer to the beneficial effect analysis of the first aspect, and are not described herein again.

In this application, the name of the uplink interference detection apparatus does not limit the device or the functional module itself, and in practical implementation, the device or the functional module may be referred to by other names. Insofar as the functions of the respective devices or functional modules are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalents.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

Fig. 1 is a schematic diagram of an architecture of an uplink interference detection system according to an embodiment of the present application;

fig. 2 is a flowchart of an uplink interference detection method according to an embodiment of the present application;

fig. 3 is a flowchart of another uplink interference detection method according to an embodiment of the present application;

fig. 4 is a flowchart of another uplink interference detection method according to an embodiment of the present application;

fig. 5 is a schematic location diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an uplink interference detection apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another uplink interference detection apparatus provided in an embodiment of the present application.

Detailed Description

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

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.

Uplink interference experienced by access network devices generally comes from terminals, other access network devices and interfering devices in the communication system.

In view of this, the present application provides an uplink interference detection method, where an uplink interference detection apparatus may obtain interference detection parameters of multiple terminals accessing a target access network device. The interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods. In this way, the uplink interference detection apparatus may determine, through the uplink signal arrival angle, an interference terminal cluster corresponding to the interference device that causes uplink interference to the access network device, and determine, based on the terminal position of the interference terminal in the interference terminal cluster, the uplink signal transmission delay, and the uplink signal reception power, the interference source position of each interference device. Compared with the scheme that relevant personnel carry professional measuring instruments to reach the area to be detected for field measurement in the related technology, the method and the device achieve detection and positioning of the interference equipment by obtaining relevant parameter information of the terminals, can automatically identify interference caused by the interference equipment, automatically position the position of the interference source, and improve uplink interference detection efficiency.

The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings.

Fig. 1 is an architecture diagram of an uplink interference detection system 10 according to an embodiment of the present disclosure. As shown in fig. 1, the uplink interference detection system 10 includes: uplink interference detection apparatus 101, access network device 102, terminal 103, and interfering device 104.

One or more uplink interference detection apparatuses 101, access network devices 102, terminals 103, and interference devices 104 may be used. The uplink interference detection apparatus 101 is connected to the access network device 102 through a communication link. The terminal 103 may be directly connected to the access network device 102 or may be connected to the access network device 102 via the interfering device 104.

The uplink interference detection apparatus 101 may be an independent communication apparatus, such as a server, an access device 103, a core network device, a maintenance platform, and the like. The uplink interference detecting apparatus 101 may also be a functional module coupled in the access network device 102, a core network device in the communication system, or a communication device maintenance platform.

When the uplink interference detection device 101 and the access network device 102 are different communication devices, the uplink interference detection device 101 may perform signaling interaction with the access network device 102 to obtain required processing data. When the uplink interference detection apparatus 101 and the access network device 102 are the same communication apparatus, or the uplink interference detection apparatus 101 is a functional module coupled in the access network device 102, the uplink interference detection apparatus 101 may directly obtain required processing data through an internal link.

For example, the uplink interference detection apparatus 101 includes:

the processor may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.

A transceiver, which may be any device using any transceiver or the like for communicating with other devices or communication networks, such as ethernet, radio Access Network (RAN), wireless Local Area Networks (WLAN), etc.

Memory, which may be, but is not limited to, read-only memory (ROM) or other type of static storage device that may store static information and instructions, random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, electrically erasable programmable read-only memory (EEPROM), compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be separate and coupled to the processor via a communication link. The memory may also be integrated with the processor.

The access network device 102 is a device located on an access network side of the communication system and having a wireless transceiving function, or a chip system that can be installed in the device. Access network equipment 102 includes, but is not limited to: an Access Point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved node B (eNB), a Radio Network Controller (RNC), a node B (NodeB, NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a Base Band Unit (BBU), a wireless relay node, a wireless backhaul node, a transmission point (transmission and reception point, TRP or transmission point, TP), etc., may also be a 5G base station, such as a gNB in a New Radio (NR) system, or a transmission point (TRP or TP), one or a group (including multiple antenna panels) of base stations in the 5G system, or may also be a network node that constitutes the gNB or the transmission point, such as a baseband unit, or a Distributed Unit (DU), a roadside unit (RSU) having a base station function, or a 5G access network (NG-Ran) device, etc. The access network device 102 further includes base stations in different networking modes, such as a master evolved NodeB (MeNB), a secondary base station (secondary eNB, seNB, or secondary gNB, sgNB). The access network equipment 102 also includes different types, such as terrestrial base stations, aerial base stations, and satellite base stations, among others.

The terminal 103, which is a device having a wireless communication function, may be deployed on land, including indoors or outdoors, hand-held, or in a vehicle. And can also be deployed on the water surface (such as a ship and the like). And may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). A terminal, also referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and a terminal equipment, is a device that provides voice and/or data connectivity to a user. For example, the terminal includes a handheld device, a vehicle-mounted device, and the like having a wireless connection function. Currently, the terminal may be: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile Internet Device (MID), wearable device (e.g., smart watch, smart bracelet, pedometer, etc.), vehicle-mounted device (e.g., automobile, bicycle, electric vehicle, airplane, ship, train, high-speed rail, etc.), virtual Reality (VR) device, augmented Reality (AR) device, wireless terminal in industrial control (industrial control), smart home device (e.g., refrigerator, television, air conditioner, electric meter, etc.), smart robot, workshop device, wireless terminal in self drive (self drive), wireless terminal in remote surgery (remote medical supply), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety (transportation safety), wireless terminal in smart city (smart city) or wireless terminal in smart grid (smart city), wireless terminal in smart airplane, unmanned plane, etc., such as a flying robot, unmanned plane, etc. In a possible application scenario, the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device. In the present application, for convenience of description, a Chip disposed in the above-described device, for example, a System-On-a-Chip (SOC), a baseband Chip, or the like, or other chips having a communication function may also be referred to as a terminal.

The terminal can be a vehicle with a corresponding communication function, or a vehicle-mounted communication device, or other embedded communication devices, or can be a user handheld communication device, including a mobile phone, a tablet computer, and the like.

As an example, in the embodiment of the present application, the terminal 103 may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of equipment that uses wearable technique to carry out intelligent design, develop can dress to daily wearing, such as glasses, gloves, wrist-watch, dress and shoes. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Interfering device 104 is a signal amplification device, for example interfering device 104 may be a repeater. A repeater is a bidirectional power amplifier, which is used as a signal relay device in a mobile communication network. In the uplink direction, an uplink signal transmitted by the terminal is amplified by the repeater and then forwarded to the access network device. Interference equipment such as a repeater and the like can amplify noise signals and other co-channel interference signals simultaneously when amplifying useful signals, so that uplink interference is caused to access network equipment, and the transmission performance of the access network equipment is influenced.

The uplink interference detection device 101 is configured to obtain interference detection parameters of a plurality of terminals 103 accessing a target access network device.

The interference detection parameters include an arrival angle of an uplink signal, a transmission delay of the uplink signal, a reception power of the uplink signal, and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods.

In a possible implementation manner, the target access network device may be the access network device 102 whose uplink interference strength is greater than the preset interference threshold. The uplink interference strength may be an uplink interference noise value received by the access network device, that is, a power value of the uplink interference and noise signal measured by a receiver of the access network device, and the uplink interference strength may also be an inverse of an uplink signal to interference plus noise ratio (SINR), that is, a ratio of a sum of the uplink interference and noise signal strengths to the uplink useful signal strength.

For example, the uplink interference detecting device 101 may obtain a plurality of uplink interference strengths detected by the access network device 102 within a preset time period, and use the access network device 102 as a target access network device when an average value of the plurality of uplink interference strengths is greater than a preset interference threshold.

Therefore, before uplink interference detection is executed, the target access network equipment with uplink interference can be identified from all the access network equipment according to the uplink interference strength, and the uplink interference detection efficiency is improved.

The preset interference threshold may be set according to actual conditions, which is not limited in this application.

The uplink interference detection apparatus 101 is further configured to, when the occupancy of the interfering terminals in the multiple terminals 103 is greater than the preset number threshold, divide the interfering terminals in the multiple terminals 103 into multiple interfering terminal clusters based on the arrival angle of the uplink signal.

The interfering terminal in the interfering terminal cluster is a terminal that performs uplink signal transmission through the same interfering device 104. The preset number threshold may be set according to actual conditions, and the application is not limited to this.

It should be noted that the interfering terminal is the terminal 103 which performs uplink signal transmission through the interfering device 104 among the multiple terminals 103, and therefore, a deviation of an uplink signal arrival angle corresponding to the terminal 103 which performs uplink signal transmission through the same interfering device 104 is small, and therefore, the uplink interference detecting apparatus 101 may divide the interfering terminal into multiple interfering terminal clusters through the uplink signal arrival angle, so as to determine an interference source location of the interfering device 104 in the following.

The uplink interference detection apparatus 101 is further configured to determine, for each first interfering terminal cluster in the multiple interfering terminal clusters, an interfering source location of the interfering device corresponding to the first interfering terminal cluster according to the terminal location, the uplink signal transmission delay, and the uplink signal receiving power.

It should be noted that the various embodiments of the present application may be referred to or referred to one another, for example, the same or similar steps, method embodiments, system embodiments, and apparatus embodiments may be referred to one another, without limitation.

For convenience of understanding, the uplink interference detection method provided in the embodiment of the present application is described below by taking the example where the uplink interference detection device 101 and the access network device 102 both belong to one communication device. The present application is also applicable to a case where the uplink interference detection apparatus 101 and the access network device 102 are different communication apparatuses.

Fig. 2 is a flowchart of an uplink interference detection method according to an embodiment of the present application. As shown in fig. 2, the method comprises the steps of:

step 201, an uplink interference detection device obtains interference detection parameters of a plurality of terminals accessing a target access network device.

The interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods.

The arrival angle of the uplink signal is an included angle between the arrival direction of the detection reference signal sent by the terminal and the normal direction of the antenna of the target access network device. For example, the target access network device may calculate the direction of the corresponding signal source by detecting a signal path difference or a phase difference between the reference signal and different array elements in the antenna array of the target access network device in a manner that the target access network device may implement signal parameter estimation through the antenna spatial array, which may refer to related technologies specifically and is not described herein.

The terminal position is latitude and longitude information of the position of the terminal, and can be determined by the target access network device through a base station positioning technology or acquired by the terminal based on a (global positioning system, GPS) positioning technology and then sent to the target access network device.

The uplink signal transmission delay is the time length from the time when the terminal sends the detection reference signal to the time when the target access network equipment receives the detection reference signal. For example, the terminal may carry timestamp information in the transmitted detection reference signal, where the timestamp information is used to characterize the transmission time of the detection reference signal. The target access network device may determine the uplink signal transmission delay based on the timestamp information and the time of receiving the detection reference signal.

The uplink signal receiving power refers to a power value of a detection reference signal from a terminal, which is received by the target access network device.

For example, the plurality of unit periods may be a plurality of unit periods within a preset detection time period, for example, the preset detection time period may be 1 minute, the unit period may be 1ms, and then 60000 unit periods are included in the detection time period. The arrival angle of the uplink signal of one terminal can be represented by { A1, A2, \8230;, A60000}, the position of the terminal can be represented by { D1, D2, \8230; \, 8230;, D60000}, the transmission delay of the uplink signal can be represented by { T1, T2, \8230;, 8230;, T60000}, the reception power of the uplink signal can be represented by { P1, P2, \8230; \, 8230;, P60000}.

In a possible implementation manner, the uplink interference detection apparatus may send an interference detection indication message to a plurality of terminals. Correspondingly, a plurality of terminals receive the interference detection indication message from the uplink interference detection device.

The plurality of terminals transmit detection reference signals to the uplink interference detection device. Correspondingly, the uplink interference detection device receives detection reference signals from a plurality of terminals, and determines interference detection parameters of the plurality of terminals according to the detection reference signals.

The interference detection indication message is used for indicating the terminal to transmit the detection reference signal according to the preset power at each unit time interval in the interference detection time period.

Illustratively, the interference detection indication message includes a start time of interference detection, a preset detection duration and a preset power.

The detection reference signal is a signal for detecting uplink interference, a plurality of preset data symbols in each data frame are occupied in a time domain by using a fixed time-frequency resource, and a plurality of preset subcarriers in a working frequency band of the access network equipment are occupied in a frequency domain.

The detection reference signal may be an existing reference signal (reference signal), such as a channel Sounding Reference Signal (SRS), a cell-specific reference signal (CRS), a channel state reference signal (CSI-RS), a demodulation reference signal (DMRS), or a reference signal newly introduced in the future.

It should be noted that, in the interference detection period, the target access network device may close the uplink power control, so that the transmission power of the detection reference signal sent by the terminal remains unchanged, so that the target access network device can obtain the interference detection parameter.

In a possible implementation manner, the start time of the interference detection and the preset detection duration may be determined by the uplink interference detection apparatus according to the service load.

And when the service load is smaller than the preset load threshold, the uplink interference detection device determines that the current time is the start time of interference detection.

The service load may be determined by at least one of the number of terminals accessing the access network device, a Physical Resource Block (PRB) resource utilization rate, and a service traffic. The preset load threshold may be set according to actual conditions, which is not limited in this application.

Therefore, the uplink interference detection device can instruct the terminal to execute the interference detection operation in the time when the service load of the access network equipment is smaller, so as to avoid influencing the service performance of the access network equipment. Meanwhile, the detection reference signal is only sent within the specified detection duration, so that the occupation of the terminal power and the air interface transmission resource by the periodic or long-time sending of the reference signal can be avoided, and the power consumption and the resource overhead of the terminal are reduced.

Step 202, the uplink interference detection apparatus divides the interfering terminals in the plurality of terminals into a plurality of interfering terminal clusters based on the arrival angle of the uplink signal under the condition that the occupation ratio of the interfering terminals in the plurality of terminals is greater than the preset number threshold.

The interference terminal in the interference terminal cluster is a terminal which transmits uplink signals through the same interference device.

The interfering terminal is a terminal that performs uplink signal transmission through the interfering device among the plurality of terminals. Therefore, in the present application, the uplink interference detection apparatus may determine that there is an interfering device and perform a subsequent uplink interference detection operation when a ratio of the number of the interfering terminals to the number of the plurality of terminals accessing the target access network device (i.e., a ratio of the interfering terminals) is greater than a preset number threshold.

In a possible implementation manner, the uplink interference detection apparatus determines each interfering terminal cluster of the multiple interfering terminal clusters as an interfering terminal cluster that satisfies a first preset condition.

Wherein, the first preset condition comprises: and the average value of the difference values of the arrival angles of the uplink signals between the first terminal and the second terminal in a plurality of unit time periods is smaller than a preset included angle threshold value. The first terminal is any interfering terminal in the interfering terminal cluster. The second terminal is an interfering terminal except the first terminal in the interfering terminal cluster.

Illustratively, the average value of the difference of the arrival angles of the uplink signals satisfies the following formula 1:

and K is the average value of the difference values of the arrival angles of the uplink signals, ai is the arrival angle of the uplink signal corresponding to the first terminal in the ith unit time interval, bi is the arrival angle of the uplink signal corresponding to the second terminal in the ith unit time interval, and N is the number of the unit time intervals.

In another possible implementation manner, the uplink interference detection apparatus may input an uplink signal arrival angle of each interfering terminal into the clustering model to obtain a plurality of interfering terminal clusters.

For example, the uplink interference detection apparatus may use the uplink signal arrival angle of each interfering terminal as a data point in the data set, and use the uplink signal arrival angle of any one of the interfering terminals as a centroid, which is input into the clustering model.

The clustering model is used for determining other interference terminals corresponding to the centroid in the same interference terminal cluster according to the distance between the data point and the centroid, so as to obtain different interference terminal clusters.

The clustering (clustering) algorithm is a typical unsupervised learning algorithm. The clustering algorithm can classify samples into different categories by similarity between samples. That is, the clustering algorithm may make the similarity between the data objects in the same category as large as possible and make the difference between the data objects in different categories as small as possible according to a certain specific criterion. The clustering model may be an artificial intelligence algorithm model, such as a K-means algorithm model.

Because the deviation of the arrival angle of the uplink signal corresponding to the terminal which performs uplink signal transmission through the same interference device is small, the uplink interference detection device can divide the interference terminal into a plurality of interference terminal clusters through the arrival angle of the uplink signal, and each interference terminal cluster corresponds to one interference device, so that the number of the interference devices existing in the area where the target access network device is located is determined, the interference source positions of all the interference devices are conveniently determined in the follow-up process, and the uplink interference detection is more comprehensive.

Step 203, aiming at each first interfering terminal cluster in the multiple interfering terminal clusters, the uplink interference detecting device determines the position of the interfering device corresponding to the first interfering terminal cluster according to the terminal position, the uplink signal transmission delay and the uplink signal receiving power.

It should be noted that after the plurality of interfering terminal clusters are determined, the uplink interference detection apparatus may determine the candidate position of the interfering device corresponding to the first interfering terminal cluster according to the terminal position of the interfering terminal in the first interfering terminal cluster, the uplink signal transmission delay, and other information, and further determine the position of the interfering source from the candidate position.

Based on the technical scheme, the uplink interference detection device in the application can acquire the interference detection parameters of a plurality of terminals accessed to the target access network equipment. The interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods. In this way, the uplink interference detection apparatus may determine, through the uplink signal arrival angle, an interference terminal cluster corresponding to the interference device that causes uplink interference to the access network device, and determine, based on the terminal position of the interference terminal in the interference terminal cluster, the uplink signal transmission delay, and the uplink signal reception power, the interference source position of each interference device. Compared with the scheme that relevant personnel carry professional measuring instruments to reach the area to be detected for field measurement in the related technology, the method and the device achieve detection and positioning of the interference equipment by obtaining relevant parameter information of the terminals, and improve uplink interference detection efficiency.

Hereinafter, a procedure in which the uplink interference detection apparatus determines an interfering terminal among a plurality of terminals will be described.

As a possible embodiment of the present application, in conjunction with fig. 2, as shown in fig. 3, before step 202, the method further includes the following steps 301 to 302.

Step 301, the uplink interference detection apparatus determines an average value of uplink signal received power of each third terminal in the plurality of terminals and an average value of access network device distance.

The average value of the distances between the access network devices is the average value of the distances between the third terminal and the target access network device in a plurality of unit time periods.

The distance between the third terminal and the target access network device may be determined by the location information of the third terminal and the location information of the target access network device. The location information of the target access network device may be preset in the target access network device and is represented by longitude and latitude information of the target access network device.

The average value of the uplink signal received power is an average value of the received power of the detection reference signal transmitted by the third terminal over a plurality of unit periods.

Illustratively, the average value of the received power of the uplink signal satisfies the following formula 2:

wherein Pmean is the average value of the uplink signal received power, pi is the uplink signal received power corresponding to the third terminal in the ith unit time period, and N is the number of the unit time periods.

Step 302, the uplink interference detection apparatus takes a third terminal that meets a second preset condition among the plurality of terminals as an interfering terminal.

Wherein the second preset condition comprises: the average value of the uplink signal receiving power of the third terminal is greater than a first preset power threshold value, and the average value of the distance between the access network equipment is greater than a first preset distance threshold value.

In general, the larger the distance between the terminal and the access network device is, the smaller the uplink signal received power corresponding to the terminal is. The interference terminal amplifies the sent detection reference signal through the interference device and forwards the amplified detection reference signal to the access network device, so that the corresponding uplink signal receiving power of the interference terminal is higher than that of other terminals under the condition that the distance between the interference terminal and the access network device is the same. The uplink interference detection device in the application can take the terminal with the average value of the uplink signal receiving power larger than the first preset power threshold value and the average value of the distance between the access network equipment and the first preset distance threshold value as the interference terminal.

The first preset power threshold and the first preset distance threshold have a negative correlation, that is, the larger the first preset power threshold is, the smaller the first preset distance threshold is. The first preset power threshold and the first preset distance threshold are in one-to-one correspondence, that is, the first preset power threshold and the first preset distance threshold may include one or more corresponding matching pairs. The first predetermined power threshold and the first predetermined distance threshold may be determined according to signal propagation characteristics.

For example, the uplink interference detecting apparatus may determine the first preset power threshold and the first preset distance threshold according to a link budget or a meter test. For example, if the first preset distance threshold is set to 100 meters, the uplink interference detection apparatus may determine, according to the transmission power of the detection reference signal and the path transmission loss value, a corresponding first preset power threshold when the first preset distance threshold is 100 meters.

Or, the second preset condition includes: and the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value.

The fourth terminal is a terminal of which the difference value between the average distance value of the access network equipment of the plurality of terminals and the average distance value of the access network equipment of the third terminal is smaller than a second preset distance threshold value.

That is, if there is a small difference between the average values of the distances between the access network devices of the third terminal and the fourth terminal and a large difference between the average values of the uplink signal received powers of the third terminal and the fourth terminal in the plurality of terminals, it is indicated that the third terminal may perform uplink transmission through the interfering device, and therefore, the uplink interference detection apparatus may use the third terminal as the interfering terminal. It should be noted that the second preset power threshold is related to an uplink gain parameter of the interfering device, and the larger the parameter value is, the larger the second preset power threshold is, the larger the difference between the uplink signal amplified by the interfering device and the average received power of the uplink signal of the adjacent non-interfering terminal is; the uplink gain parameter is a power value difference between an output signal and an input signal of the interference device.

Based on the above technical solution, the uplink interference detection apparatus in the present application may determine an average value of uplink signal received power of each third terminal in the multiple terminals and an average value of access network device distance, so as to determine, from the multiple terminals, an interference terminal that performs uplink transmission through the interference device based on the average value of uplink signal received power and the average value of access network device distance. Therefore, the interference terminal can be determined from the plurality of third terminals, so that uplink interference detection can be performed based on the interference terminal in the following process.

Hereinafter, a process of the uplink interference detection apparatus determining an interference source location of the interference device corresponding to the first interference terminal cluster will be described.

As a possible embodiment of the present application, in conjunction with fig. 2, as shown in fig. 4, the above step 203 can also be implemented by the following steps 401 to 403.

Step 401, for each target interfering terminal in the first interfering terminal cluster, the uplink interference detecting device determines an uplink signal transmission distance according to an uplink signal transmission delay of the target interfering terminal.

Since the speed of the wireless signal transmitted in the air is approximate to the speed of light, the uplink interference detection device may use the product of the uplink signal transmission delay and the speed of light as the uplink transmission distance.

Exemplarily, as shown in fig. 5, fig. 5 is a schematic position diagram of a communication device provided in an embodiment of the present application. The target interfering terminal 502 and the target interfering terminal 503 both perform uplink transmission with the target access network device 501 through the interfering device 504.

For the target interfering terminal 502, the uplink signal transmission distance is the sum of the distance between the target interfering terminal 502 and the interfering device 504 and the distance between the interfering device 504 and the target access network device 501. For the target interfering terminal 503, the uplink signal transmission distance is the sum of the distance between the target interfering terminal 503 and the interfering device 504 and the distance between the interfering device 504 and the target access network device 501.

It should be noted that fig. 5 only shows two target interfering terminals, and the above technical solution of the present application is also applicable to a scenario with more than two target interfering terminals.

Step 402, the uplink interference detection apparatus determines a plurality of candidate positions of the interference device corresponding to the first interference terminal cluster according to the uplink interference signal transmission distance and the terminal position corresponding to each target interference terminal.

In a possible implementation manner, for each target interfering terminal, the uplink interference detecting device may determine a target trajectory according to the corresponding uplink interference signal transmission distance, the terminal position, and the position of the target access network device, and use an intersection point of a plurality of target trajectories as a plurality of candidate positions of the interfering device corresponding to the first interfering terminal cluster.

And the interference equipment corresponding to the first interference terminal cluster is positioned on the target track.

Referring to fig. 5, since the location information of the target access network device 501, the target interfering terminal 502, and the target interfering terminal 503 is determined, in the step 401, the uplink interference detection apparatus may determine the uplink signal transmission distance corresponding to the target interfering terminal 502 and the uplink signal transmission distance corresponding to the target interfering terminal 503.

Therefore, based on the nature of an ellipse, the locus of points in a plane whose sum of distances from two fixed points is equal to a constant is called an ellipse. The uplink interference detection apparatus may use the positions of the target interference terminal 502 and the target access network device 501 as two fixed positions, and use a trajectory formed by points on a plane where the sum of the distances between the target interference terminal 502 and the target access network device 501 is the uplink signal transmission distance as a target trajectory.

Similarly, the uplink interference detection apparatus may use the positions of the target interfering terminal 503 and the target access network device 501 as two fixed positions, and use a track formed by points on a plane where the sum of the distances between the target interfering terminal 503 and the target access network device 501 is the uplink signal transmission distance as the target track.

Obviously, the interfering device 504 is located at the intersection of the two target trajectories. In this way, the uplink interference detection apparatus may use the intersection point of the two target tracks as a candidate position of the interfering device corresponding to the first interfering terminal cluster, i.e. position 504-position 508 in fig. 5.

Step 403, the uplink interference detection apparatus determines an interference source location of the interference device corresponding to the first interference terminal cluster from the multiple candidate locations based on the uplink signal received power.

In a possible implementation manner, for each candidate position, the uplink interference detection apparatus may perform a first operation to determine weights of a plurality of candidate positions.

And the uplink interference detection device determines the interference source position of the interference equipment corresponding to the first interference terminal cluster as the candidate position with the minimum weight in the plurality of candidate positions.

Wherein the first operation comprises the steps of:

for each target interference terminal, the uplink interference detection device calculates a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit time periods and uplink signal receiving power, and takes the average value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position.

The correlation coefficient is used for representing the degree of correlation between the distance between the target interference terminal and the candidate position and the uplink signal receiving power.

For example, the value range of the correlation coefficient may be [ -1,1]. When the correlation coefficient is greater than 0, it indicates that the distance between the target interfering terminal and the candidate position has a positive correlation with the uplink signal received power. And when the correlation coefficient is less than 0, the correlation coefficient shows that the distance between the target interference terminal and the candidate position has a negative correlation with the uplink signal received power. And when the correlation coefficient is equal to 0, the distance between the target interference terminal and the candidate position does not have a correlation with the uplink signal receiving power.

For example, the interference detection apparatus may calculate a correlation coefficient between a distance between the target interfering terminal and the candidate location and uplink signal received power through a preset algorithm. The preset algorithm may be a correlation detection algorithm, such as Pearson algorithm, spearman algorithm, kendall algorithm, etc.

For example, the correlation coefficient satisfies the following formula 3:

wherein, R is a correlation coefficient, N is the number of unit time periods, pi is the uplink signal received power corresponding to the target interference terminal in the i-th unit time period, di is the distance between the target interference terminal and the candidate position in the i-th unit time period, P0 is the average value of the uplink signal received power corresponding to the target interference terminal in the N unit time periods, and D0 is the average value of the distance between the target interference terminal and the candidate position in the N unit time periods.

If the candidate position is the interference source position of the interfering device, the smaller the distance between the target interfering terminal and the candidate position is, the larger the uplink signal received power corresponding to the target interfering terminal is. That is, the smaller the correlation coefficient is, the higher the degree of negative correlation between the distance between the target interfering terminal and the candidate position and the uplink signal received power is, and the candidate position is more likely to be the interfering source position of the interfering device. Therefore, the uplink interference detection apparatus may use an average value of the correlation coefficients of the target interference terminals corresponding to the candidate position as the weight of the candidate position, and use the candidate position with the smallest weight as the interference source position of the interference device.

Based on the technical scheme, the uplink interference detection device in the application can determine the uplink signal transmission distance corresponding to the target interference terminal through the uplink signal transmission delay, so that a plurality of candidate positions are determined according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position; further, according to the weight value of each candidate position, a target position is determined from the multiple candidate positions, and automatic positioning of the interference source is achieved. The weight of the candidate position is used for reflecting the degree of association between the distance between the target interference terminal and the candidate position and the uplink signal receiving power, and the smaller the weight of the candidate position is, the stronger the correlation is, which indicates that the possibility that the interference device is located at the candidate position is higher. Therefore, by determining the candidate position with the smallest weight as the interference source position, the uplink interference detection device can determine the interference source position of the interference device from a plurality of candidate positions, and the positioning accuracy of uplink interference detection is improved.

In the embodiment of the present application, the uplink interference detection apparatus may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

As shown in fig. 6, a schematic structural diagram of an uplink interference detecting device 60 provided in the embodiment of the present application is shown, where the uplink interference detecting device 60 includes:

a communication unit 602, configured to obtain interference detection parameters of multiple terminals accessing a target access network device; the interference detection parameters comprise an arrival angle of an uplink signal, a transmission delay of the uplink signal, reception power of the uplink signal and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods.

A processing unit 601, configured to divide an interfering terminal in a plurality of terminals into a plurality of interfering terminal clusters based on an uplink signal arrival angle when a ratio of the interfering terminal in the plurality of terminals is greater than a preset number threshold; the interfering terminal in the interfering terminal cluster is a terminal which transmits uplink signals through the same interfering device.

The processing unit 601 is further configured to determine, for each first interfering terminal cluster in the multiple interfering terminal clusters, an interfering source location of the interfering device corresponding to the first interfering terminal cluster according to the terminal location, the uplink signal transmission delay, and the uplink signal receiving power.

In a possible implementation manner, the communication unit 602 is configured to send an interference detection indication message to a plurality of terminals; the interference detection indication message is used for indicating the terminal to send a detection reference signal according to preset power in each unit time interval in the interference detection time period; a communication unit 602, further configured to receive detection reference signals from a plurality of terminals; the processing unit 601 is further configured to determine interference detection parameters of multiple terminals according to the detection reference signal.

In one possible implementation, the processing unit 601 is configured to: determining each interference terminal cluster in a plurality of interference terminal clusters as an interference terminal cluster meeting a first preset condition; the first preset condition includes: the average value of the difference values of the arrival angles of the uplink signals between the first terminal and the second terminal in a plurality of unit time periods is smaller than a preset included angle threshold value; the first terminal is any interference terminal in the interference terminal cluster; the second terminal is an interfering terminal except the first terminal in the interfering terminal cluster.

In one possible implementation, the processing unit 601 is configured to: and inputting the arrival angle of the uplink signal of each interference terminal into the clustering model to obtain a plurality of interference terminal clusters.

In one possible implementation, the processing unit 601 is configured to: determining an average value of uplink signal receiving power of each third terminal in the plurality of terminals and an average value of access network equipment distance; the average distance of the access network equipment is the average distance between the third terminal and the target access network equipment in a plurality of unit time periods; taking a third terminal which meets a second preset condition in the plurality of terminals as an interference terminal; the second preset condition includes: the average value of the uplink signal receiving power of the third terminal is greater than a first preset power threshold value, and the average value of the distance between the access network equipment is greater than a first preset distance threshold value; or, the second preset condition includes: the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value; the fourth terminal is a terminal of which the difference value between the average distance value of the access network equipment of the plurality of terminals and the average distance value of the access network equipment of the third terminal is smaller than a second preset distance threshold value.

In one possible implementation, the processing unit 601 is configured to: for each target interference terminal in the first interference terminal cluster, determining an uplink signal transmission distance according to the uplink signal transmission delay of the target interference terminal; determining a plurality of candidate positions of interference equipment corresponding to a first interference terminal cluster according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position; and determining the position of the interference source of the interference equipment corresponding to the first interference terminal cluster from the plurality of candidate positions based on the uplink signal receiving power.

In one possible implementation, the processing unit 601 is configured to: for each target interference terminal, determining a target track according to the corresponding uplink interference signal transmission distance, the terminal position and the position of the target access network equipment; the interference equipment corresponding to the first interference terminal cluster is positioned on the target track; and taking the intersection points of the target tracks as a plurality of candidate positions of the interference equipment corresponding to the first interference terminal cluster.

In one possible implementation, the processing unit 601 is configured to: for each candidate location, performing a first operation to determine weights for a plurality of candidate locations; the first operation includes: calculating a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit time periods and the uplink signal receiving power for each target interference terminal; taking the mean value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position; and determining the interference source position of the interference equipment corresponding to the first interference terminal cluster as the candidate position with the minimum weight in the plurality of candidate positions.

When implemented by hardware, the communication unit 602 in the embodiment of the present application may be integrated on a communication interface, and the processing unit 601 may be integrated on a processor. The specific implementation is shown in fig. 7.

Fig. 7 shows a schematic structural diagram of another possible uplink interference detection apparatus in the above embodiment. The uplink interference detection device includes: a processor 702, and a communications interface 703. Processor 702 is configured to control and manage the actions of the uplink interference detection apparatus, for example, to perform the steps performed by processing unit 601 described above, and/or to perform other processes for the techniques described herein. The communication interface 703 is configured to support communication between the uplink interference detection apparatus and other network entities, for example, to perform the steps performed by the communication unit 602. The uplink interference detecting device may further comprise a memory 701 and a bus 704, the memory 701 being adapted to store program codes and data of the uplink interference detecting device.

The memory 701 may be a memory in the uplink interference detection apparatus, and the memory may include a volatile memory, such as a random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

The processor 702 may be implemented or performed with various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.

The bus 704 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 704 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but that does not indicate only one bus or one type of bus.

The uplink interference detection apparatus in fig. 7 may also be a chip. The chip includes one or more (including two) processors 702 and a communication interface 703.

In some embodiments, the chip also includes a memory 701, which memory 701 may include both read-only memory and random access memory, and provides operating instructions and data to the processor 702. A portion of the memory 701 may also include non-volatile random access memory (NVRAM).

In some embodiments, memory 701 stores elements, execution modules or data structures, or a subset thereof, or an expanded set thereof.

In the embodiment of the present application, by calling an operation instruction stored in the memory 701 (the operation instruction may be stored in an operating system), a corresponding operation is performed.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The present application provides a computer program product including instructions, when the computer program product runs on a computer, the computer is caused to execute the uplink interference detection method in the foregoing method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is enabled to execute the uplink interference detection method in the method flow shown in the foregoing method embodiment.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a register, a hard disk, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the uplink interference detection apparatus, the computer-readable storage medium, and the computer program product in the embodiments of the present application may be applied to the method described above, for technical effects that can be obtained by the method, reference may also be made to the method embodiments described above, and details of the embodiments of the present application are not repeated herein.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An uplink interference detection method, comprising:

acquiring interference detection parameters of a plurality of terminals accessed to target access network equipment; the interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods;

under the condition that the occupation ratio of interference terminals in the plurality of terminals is greater than a preset number threshold, dividing the interference terminals in the plurality of terminals into a plurality of interference terminal clusters based on the arrival angle of the uplink signal; the interference terminal in the interference terminal cluster is a terminal which transmits uplink signals through the same interference equipment;

and determining the position of an interference source of the interference equipment corresponding to each first interference terminal cluster in the plurality of interference terminal clusters according to the terminal position, the uplink signal transmission delay and the uplink signal receiving power.

2. The method of claim 1, wherein the obtaining interference detection parameters of a plurality of terminals accessing a target access network device comprises:

sending an interference detection indication message to the plurality of terminals; the interference detection indication message is used for indicating the terminal to send a detection reference signal according to preset power in each unit time interval in an interference detection time period;

receiving detection reference signals from the plurality of terminals;

and determining interference detection parameters of the plurality of terminals according to the detection reference signals.

3. The method of claim 1, wherein the dividing interfering terminals in the plurality of terminals into a plurality of interfering terminal clusters based on the arrival angle of the uplink signal comprises:

determining each interference terminal cluster in the plurality of interference terminal clusters as an interference terminal cluster meeting a first preset condition; the first preset condition comprises the following steps: the average value of the difference values of the arrival angles of the uplink signals between the first terminal and the second terminal in a plurality of unit time periods is smaller than a preset included angle threshold value; the first terminal is any interference terminal in an interference terminal cluster; and the second terminal is an interference terminal except the first terminal in an interference terminal cluster.

4. The method of claim 1, wherein the dividing interfering terminals in the plurality of terminals into a plurality of interfering terminal clusters based on the arrival angle of the uplink signal comprises:

and inputting the arrival angle of the uplink signal of each interference terminal into the clustering model to obtain a plurality of interference terminal clusters.

5. The method of claim 1, further comprising:

determining an average value of uplink signal receiving power of each third terminal in the plurality of terminals and an average value of access network equipment distance; the average distance of the access network equipment is the average distance between the third terminal and the target access network equipment in a plurality of unit time periods;

taking the third terminal meeting a second preset condition from the plurality of terminals as an interference terminal; the second preset condition comprises: the average value of the uplink signal receiving power of the third terminal is greater than a first preset power threshold value, and the average value of the distance between the access network equipment is greater than a first preset distance threshold value;

or, the second preset condition includes: the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value; the fourth terminal is a terminal of which the difference value between the average distance values of the plurality of terminals and the average distance value of the access network equipment of the third terminal is smaller than a second preset distance threshold.

6. The method according to any one of claims 1 to 5, wherein the determining, according to the terminal position, the uplink signal transmission delay, and the uplink signal received power, an interference source position of an interfering device corresponding to the first interfering terminal cluster includes:

for each target interference terminal in the first interference terminal cluster, determining an uplink signal transmission distance according to an uplink signal transmission delay of the target interference terminal;

determining a plurality of candidate positions of interference equipment corresponding to the first interference terminal cluster according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position;

and determining the position of the interference source of the interference equipment corresponding to the first interference terminal cluster from the plurality of candidate positions based on the uplink signal received power.

7. The method of claim 6, wherein the determining the candidate positions of the interfering device corresponding to the first interfering terminal cluster according to the uplink interfering signal transmission distance and the terminal position corresponding to each target interfering terminal comprises:

for each target interference terminal, determining a target track according to the corresponding uplink interference signal transmission distance, the terminal position and the position of the target access network equipment; the interference equipment corresponding to the first interference terminal cluster is positioned on the target track;

and taking the intersection points of the target tracks as a plurality of candidate positions of the interference equipment corresponding to the first interference terminal cluster.

8. The method of claim 6, wherein the determining an interference source location of the interfering device corresponding to the first interfering terminal cluster from the plurality of candidate locations based on the uplink signal received power comprises:

for each candidate location, performing a first operation to determine weights for a plurality of candidate locations; the first operation includes: for each target interference terminal, calculating a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit time periods and the uplink signal receiving power; taking the mean value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position;

and determining the interference source position of the interference equipment corresponding to the first interference terminal cluster as the candidate position with the minimum weight in the plurality of candidate positions.

9. An uplink interference detection device is characterized by comprising a communication unit and a processing unit;

the communication unit is used for acquiring interference detection parameters of a plurality of terminals accessed to the target access network equipment; the interference detection parameters comprise an uplink signal arrival angle, an uplink signal transmission delay, an uplink signal receiving power and a terminal position of a detection reference signal sent by the terminal in a plurality of unit time periods;

the processing unit is configured to, when a ratio of interfering terminals in the plurality of terminals is greater than a preset number threshold, divide interfering terminals in the plurality of terminals into a plurality of interfering terminal clusters based on the uplink signal arrival angle; the interference terminal in the interference terminal cluster is a terminal which transmits uplink signals through the same interference equipment;

the processing unit is further configured to determine, for each first interfering terminal cluster in the multiple interfering terminal clusters, an interfering source location of an interfering device corresponding to the first interfering terminal cluster according to the terminal location, the uplink signal transmission delay, and the uplink signal receiving power.

10. The apparatus of claim 9, wherein the communication unit is configured to send an interference detection indication message to the plurality of terminals; the interference detection indication message is used for indicating the terminal to send a detection reference signal according to preset power at each unit time interval in an interference detection time period;

the communication unit is further configured to receive detection reference signals from the plurality of terminals;

the processing unit is further configured to determine interference detection parameters of the multiple terminals according to the detection reference signal.

11. The apparatus of claim 9, wherein the processing unit is configured to:

12. The apparatus of claim 9, wherein the processing unit is configured to:

13. The apparatus of claim 9, wherein the processing unit is configured to:

taking the third terminal meeting a second preset condition from the plurality of terminals as an interference terminal; the second preset condition includes: the average value of the uplink signal receiving power of the third terminal is greater than a first preset power threshold value, and the average value of the distance between the access network equipment is greater than a first preset distance threshold value;

or, the second preset condition includes: the difference value between the average values of the uplink signal receiving powers of the third terminal and the fourth terminal is greater than a second preset power threshold value; the fourth terminal is a terminal of which the difference value between the distance average value of the access network equipment of the plurality of terminals and the distance average value of the access network equipment of the third terminal is smaller than a second preset distance threshold value.

14. The apparatus according to any of claims 9-13, wherein the processing unit is configured to:

for each target interference terminal in the first interference terminal cluster, determining an uplink signal transmission distance according to the uplink signal transmission delay of the target interference terminal;

determining a plurality of candidate positions of the interference equipment corresponding to the first interference terminal cluster according to the uplink interference signal transmission distance corresponding to each target interference terminal and the terminal position;

and determining an interference source position of the interference equipment corresponding to the first interference terminal cluster from the plurality of candidate positions based on the uplink signal receiving power.

15. The apparatus of claim 14, wherein the processing unit is configured to:

16. The apparatus of claim 14, wherein the processing unit is configured to:

for each candidate location, performing a first operation to determine weights for a plurality of candidate locations; the first operation includes: for each target interference terminal, calculating a correlation coefficient according to the distance between the target interference terminal and the candidate position in a plurality of unit periods and the uplink signal receiving power; taking the mean value of the correlation coefficients corresponding to the target interference terminals as the weight of the candidate position;

17. An uplink interference detecting apparatus, comprising: a processor and a communication interface; the communication interface is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the uplink interference detection method according to any one of claims 1 to 8.

18. A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the computer performs the uplink interference detection method according to any one of claims 1 to 8.