Interference source localization method and apparatus, storage medium, and program product

Abstract

The present disclosure provides an interference source localization method and apparatus, a storage medium, and a program product. The interference source localization method comprises: sending a sensing reception configuration to a first network node; receiving interference measurement information fed back by the first network node and determined on the basis of the sensing reception configuration; and determining, on the basis of the interference measurement information, whether an interference source is present, and localizing the interference source.

Description

Interference source localization methods, devices, storage media and program products

[0001] This application claims priority to Chinese patent application No. 202410918239.0, filed on July 9, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, storage medium, and program product for locating interference sources. Background Technology

[0003] In integrated communication and sensing systems, to support sensing modes where base stations transmit and receive signals independently or terminals transmit and receive signals independently, it is necessary to break through the limitations of traditional duplex and improve spectrum efficiency and system flexibility. Summary of the Invention

[0004] This disclosure provides a method, apparatus, storage medium, and program product for locating interference sources, which helps to solve interference problems in integrated communication and sensing systems. The technical solutions provided by this disclosure are as follows.

[0005] On the one hand, an interference source localization method is provided, which is applied to a sensing function management network element. The interference source localization method includes: sending a sensing reception configuration to a first network node; receiving interference measurement information determined based on the sensing reception configuration from the first network node; determining whether an interference source exists based on the interference measurement information, and locating the interference source.

[0006] On the other hand, an interference source localization device is provided, applied to a sensing function management network element. This interference source localization device includes a communication module and a processing module. The communication module is used to send a sensing reception configuration to a first network node. The communication module is also used to receive interference measurement information determined based on the sensing reception configuration from the first network node. The processing module is used to determine the presence of an interference source based on the interference measurement information and to locate the interference source.

[0007] In another aspect, a communication device is provided, comprising: a memory and a processor. The memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; when the processor executes the computer program instructions, it implements the aforementioned interference source localization method.

[0008] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, which implement the above-described interference source localization method when executed on a computer (e.g., a communication device or an interference source localization device).

[0009] On the other hand, a computer program product is provided, which includes computer program instructions that, when executed, implement the above-described interference source localization method. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0011] Figure 2 is a flowchart of an interference source localization method according to an embodiment of the present disclosure.

[0012] Figure 3 is an interactive flowchart of interference measurement and sensing according to an embodiment of the present disclosure.

[0013] Figure 4 is an interactive flowchart of another interference measurement and sensing according to an embodiment of the present disclosure.

[0014] Figure 5 is a comparison diagram of signals received by different network nodes according to an embodiment of the present disclosure.

[0015] Figure 6 is a schematic diagram of an interference source locating device according to an embodiment of the present disclosure.

[0016] Figure 7 is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0017] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0018] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is used only to describe the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: only A, A and B, only B. Furthermore, "at least one" means one or more, and "multiple" means two or more. The terms "first," "second," etc., do not limit the quantity or order of execution, and the terms "first," "second," etc., do not necessarily imply differences.

[0019] It should be noted that in this disclosure, the terms "exemplary" or "for example" are used to describe examples, illustrations, or descriptions. Any embodiment or design described in this disclosure using the terms "exemplary" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0020] Terrestrial cellular mobile communication systems can be subject to interference from external sources, such as fake base stations illegally using licensed frequency bands or drones attempting to interfere with sensing systems during unauthorized flights. Terrestrial mobile communication systems are currently supporting integrated sensing and communication technologies, enabling them to detect, identify, and attempt to locate interference sources.

[0021] Integrated sensing and communication (ISAC) combines communication and sensing capabilities, endowing networks with the ability to both support communication and perceive the physical world. Sensing capabilities primarily focus on wireless signal sensing to perform functions such as positioning, ranging, velocity measurement, imaging, detection, identification, and environmental reconstruction. By transmitting and receiving sensing signals between sensing nodes or within a single sensing node, and analyzing the direct, reflected, scattered, and diffracted signals of the wireless signals, the perception results of the target or environment are obtained. Furthermore, wireless sensing measurements can be combined with radar, cameras, and other sensors to obtain the final perception results.

[0022] Sensing modes include monostatic, bistatic, and multi-static. For example, base station monostatic (single-site sensing), base station A transmitting B receiving (dual-site sensing), base station transmitting terminal receiving, terminal transmitting base station receiving, terminal monostatic, terminal A transmitting B receiving, and multi-static (any combination of the above sensing modes).

[0023] In integrated communication and sensing systems, to support sensing modes where base stations transmit and receive signals independently or terminals transmit and receive signals independently, it is necessary to overcome the limitations of traditional full-duplex technology and improve spectrum efficiency and system flexibility. However, this innovation brings the challenge of severe self-interference and cross-interference problems when uplink and downlink signals are transmitted simultaneously on the same frequency, requiring equipment or network to adopt certain interference suppression and elimination measures. Furthermore, interference problems exist even in other sensing modes, such as the A-transmit B-receive sensing mode. Moreover, in designs where sensing and communication functions are separated, interference also exists between sensing and communication. Therefore, solving these interference problems will be a crucial task in advancing integrated communication and sensing systems.

[0024] Assume a simple form of jamming: continuous power transmission in the frequency band used for sensing. For both communication and sensing services, this is equivalent to reducing the signal-to-interference-plus-noise ratio (SINR) at the receiver, thereby decreasing the accuracy or even interrupting the accuracy of communication and sensing services. For example, for communication services, a lower SINR increases the bit error rate and bit error rate, degrading the quality of the communication link; for sensing services, sensing receivers generally use a constant false alarm rate (CFAR) algorithm. To maintain a constant CFAR rate, the algorithm lowers the detection threshold in the presence of interference, leading to a simultaneous decrease in the detection probability. This reduces the probability of detecting unauthorized drones. Simply put, for sensing services, interference is equivalent to reducing the effective signal-to-noise ratio (SNR), increasing background noise, and thus lowering the detection probability. Simultaneously, interference also affects range estimation and angle-of-arrival (AoA) estimation, potentially causing all sensing functions within the cell to malfunction.

[0025] In view of this, this disclosure provides a method for locating interference sources. The method involves sending a sensing and receiving configuration to a first network node; receiving interference measurement information determined based on the sensing and receiving configuration from the first network node; and determining the presence of an interference source based on the interference measurement information, and then locating the interference source. By actively sending the sensing and receiving configuration and receiving interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, enabling precise location of the interference source. This helps solve interference problems in integrated communication and sensing scenarios and improves the intelligent management and maintenance efficiency of the network.

[0026] In this embodiment of the disclosure, the network architecture of the communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) may include at least a first network node, a second network node, a third network node, a fourth network node, and a sensing function management network element.

[0027] In some embodiments, at least one of the first network node, the second network node, the third network node, and the fourth network node can be a communication node, a sensing node, or a sensor-integrated node.

[0028] In some embodiments, at least one of the first network node, the second network node, the third network node, and the fourth network node can be an interfered node or an interference source node.

[0029] In some embodiments, the functions of the sensing function management network element (SF, or sensing core network, management network element, etc.) include not only the traditional detection, tracking, and localization of objects in the environment, but also spectrum sensing (sensing the use of the spectrum, i.e., whether there is significant power in a specific frequency band). The sensing function management network element can exist independently of the core network.

[0030] It should be understood that, in some examples, the interference source node may include, but is not limited to, at least one of the following: a communication node, a sensing node, or a synergistic sensing node. The interfered node may include, but is not limited to, at least one of the following: a communication node, a sensing node, or a synergistic sensing node.

[0031] A sensing node refers to a wireless sensing node that participates in the transmission or reception of sensing signals. Sensing nodes include, but are not limited to: base stations (gNB (next-generation NodeB) or TRP (transmission and reception point)), user equipment (UE), positioning reference units (PRU), sensing reference units (SRU), and other networked devices. Sensing nodes must also have the ability to communicate with the overall network or other nodes within the network; therefore, their capabilities include: receiving and processing wireless signals, and connecting to other network nodes (wired or wireless).

[0032] In some embodiments, sensing nodes can be divided into sensing receiving nodes and sensing transmitting nodes. A sensing receiving node (or simply receiving node, receiver) refers to a node with the capability to receive and process wireless signals, and can be a base station (gNB or TRP), a terminal (UE), or other networked devices. A sensing transmitting node (or simply transmitting node, transmitter) refers to a node with the capability to transmit and process wireless signals, and can be a base station (gNB or TRP), a terminal (UE), or other networked devices.

[0033] In some embodiments, the sensing signal transmission configuration includes at least one or more of the following: identification information of the sensing reference signal, number of time-domain symbols of the sensing reference signal, period of the sensing reference signal, transmission beam configuration of the sensing reference signal, comb structure size of the sensing reference signal, comb offset of the sensing reference signal, time-domain offset of the sensing reference signal, bandwidth of the sensing reference signal, time-domain position of the sensing reference signal, and power configuration information of the sensing reference signal.

[0034] A communication node refers to a wireless communication node that participates in transmitting or receiving communication signals. Communication nodes include, but are not limited to: base stations (gNB or TRP), terminals (UE), routers, and relay nodes.

[0035] Integrated sensing nodes include, but are not limited to, base stations and terminals. The function of an integrated sensing node is to transmit or receive integrated sensing signals via a wireless air interface according to configuration requirements. Communication nodes can receive communication signals and process the acquired communication information. Sensing receivers can receive integrated sensing signals scattered by the sensing target and perform sensing processing to acquire sensing information.

[0036] In this disclosure, a network node configures other nodes. Corresponding to the configuration, the configured node can report whether it possesses the aforementioned capabilities, such as whether it supports certain measurement modes or reporting modes. These are not listed individually in this document. The configuring node can send requests to inquire about or update capabilities, and the configured nodes respond with feedback on currently supported capabilities. This allows the configuring node to send configurations specifically based on different capabilities. In this disclosure, the methods of sending configurations include at least sending them via assistance data, and the methods of querying node capabilities and receiving node feedback on capabilities also include at least sending them via assistance data.

[0037] For example, Figure 1 illustrates a schematic diagram of the architecture of a communication system provided in an embodiment of this disclosure. As shown in Figure 1, the communication system 10 includes multiple base stations (e.g., base station 21 and base station 22) and multiple terminals (e.g., terminal 31, terminal 32, terminal 33, and terminal 34). The multiple base stations and multiple terminals can be communicatively connected. A base station can provide network services to terminals in one cell, or it can simultaneously provide network services to terminals in multiple cells.

[0038] In some embodiments, the base station is used to receive or transmit communication signals.

[0039] In some embodiments, the base station is used to transmit sensing signals, receive signals scattered by the sensing target, and perform sensing processing to obtain sensing information.

[0040] In some embodiments, the base station can transmit a sensing signal to sense a target. Simultaneously, the base station can receive and process the echo signal from the target to obtain sensing information. Alternatively, the base station can transmit a sensing signal to sense a target, and the terminal can receive and process the echo signal from the target to obtain sensing information.

[0041] In some embodiments, a base station can be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or an evolved Node B (eNB or eNodeB), a base station in a 5G network, or a base station in a future communication system. Base stations can include various macro base stations, micro base stations, femtocell base stations, wireless remote extensions, reconfigurable intelligent surfaces (RISS), routers, wireless fidelity (Wi-Fi) devices, or various network-side devices such as primary cells and secondary cells.

[0042] In some embodiments, the terminal can be a device with wireless transceiver capabilities, which can be deployed on land (including indoor or outdoor, handheld, wearable, or vehicle-mounted); on water (such as ships); or in the air (e.g., on airplanes, balloons, and satellites). The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments disclosed herein do not limit the application scenarios. The terminal may also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., and the embodiments disclosed herein are not limited to these terms.

[0043] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not limited. In addition to the devices shown in Figure 1, the communication system may also include other devices, such as core network devices.

[0044] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As will be known to those skilled in the art, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0045] This disclosure provides an interference source localization method applied to a sensing function management network element. As shown in Figure 2, the interference source localization method includes the following steps S101 to S103.

[0046] In S101, the sensing function management network element sends the sensing reception configuration to the first network node.

[0047] It is understandable that the sensing function management network element sending the sensing reception configuration to the first network node can include two scenarios: one is that the sensing function management network element actively collects, analyzes, summarizes, and reports interference information to decide whether to enable interference detection and identify the interference source; the other is that the sensing function management network element passively enables interference detection and identifies the interference source. If the sensing function management network element enables interference detection, it sends the sensing reception configuration to the first network node and performs subsequent operations.

[0048] In some embodiments, the sensing function management network element queries and receives capability information of the first network node, the capability information including at least one of the following: interference measurement mode and interference reporting mode, so as to determine the sensing reception configuration to be sent to the first network node based on the capability information of the first network node.

[0049] In some embodiments, the sensing function management network element sends a sensing reception configuration to a first network node, including: in response to determining that a suspected interference source exists in the network, sending a sensing reception configuration to the first network node; or, in response to receiving an interference measurement request from an external node, sending a sensing reception configuration to the first network node.

[0050] It is understandable that, in response to the determination of a suspected interference source in the network, communication nodes in the network may report to the sensing function management network element by detecting a decline in the quality of the communication link; or, non-communication functions (such as positioning) in the network may report to the sensing function management network element if they are found to be affected by unknown factors.

[0051] In some embodiments, determining the presence of a suspected interference source in the network includes determining the presence of a suspected interference source in the network based on at least one of the following: interference measurement information fed back by a base station; interference measurement information fed back by a terminal; interference measurement information fed back by a device connected in the network; and interference measurement information fed back by a core network element.

[0052] In some embodiments, the interference measurement information includes at least one of the following: waveform of the interference signal, sequence of the interference signal, interference intensity, identification of suspected interference source nodes (e.g., the identity of the terminal or the identity of the base station), location of the interfered node, azimuth of the received interference (e.g., represented by a base station sector or by beam pointing), suspected interference frequency band (e.g., a certain band or a sub-band), index of the interfered signal resources, interference pattern (e.g., whether it is periodic in time, region of concentrated energy in the frequency domain, etc.), location of the interference source, radar cross section (RCS) of the interference source, object type of the interference source (e.g., drone), speed of the interference source (including speed magnitude and orientation), altitude of the interference source, type of the interfered reference signal, port of the interfered reference signal (if the interference is sensed when measuring the reference signal), beam pointing vector of the interference, beam precoding matrix (PMI), current channel conditions directly measured by the receiver, channel impulse response (CIR), power delay profile (PDP), and delay distribution (Delay). Profile (DP), channel matrix related information, channel information measured on the strongest first preset number of paths, channel information measured on the weakest second preset number of paths, receiving antenna reference point index, interference-related time information, interference-related frequency band, interference-related bandwidth, interference-related waveform, interference-related sequence, interference-related power, and orientation of the interference source.

[0053] Interference intensity can be a qualitative description of its degree, or a quantified result of measured interference power, such as SNR, SINR, channel quality indicator (CQI), and RSSI (received signal strength indication). Interference-related time information includes the time of the interference occurrence (which can serve as a complete record and evidence of the interference event). Channel matrix-related information includes the channel matrix H and its mathematically transformed representation (such as the feature space of the channel matrix H).

[0054] The interference measurement information in this disclosure may also have other names, such as interference-related information, and there is no limitation on this.

[0055] In some embodiments, the interference measurement information fed back by the terminal can be determined by a reference signal configured in the terminal measurement network.

[0056] It is understandable that a terminal can also be referred to as a network node in a broad sense, such as an IAB (integrated access and backhaul), a relay, or a roadside site. For example, terminals in idle, connected, and inactive states can all measure reference signals for network configuration. In this process, suspected interference may be detected, which can then be fed back to the SF (Secondary Service).

[0057] In some embodiments, the interference measurement information fed back by the terminal can be sent directly or indirectly to the sensing function management network element.

[0058] For example, when a terminal is measuring a reference signal and calculating the metrics to be fed back (such as channel quality indication information estimated based on SINR), if it detects suspected interference, it can feed back the interference measurement information to the base station, SF, or other network elements / nodes in the network.

[0059] For example, if the base station is configured to provide a positioning reference signal for terminal measurement, in addition to the interference measurement information mentioned above, the terminal can also report the port used to measure the positioning reference signal (PRS) and the sequence number of the interfered positioning reference signal after detecting an anomaly. After receiving the report from the terminal, the base station reports the interference measurement information to the sensing function management network element, and also reports the quasi-co-location (QCL) relationship between the potentially interfered reference signal and other reference signals, as well as the port number used by the base station for transmission.

[0060] In some embodiments, before the base station feeds back interference measurement information to the sensing function management network element, the base station configures the terminal to measure specific reference signals to monitor channel conditions in real time and feeds back the measurement results to the base station. Based on the measurement results fed back by the terminal, the base station can determine whether there is abnormal degradation, whether to report potential interference, and feed back interference measurement information.

[0061] In some embodiments, the reference signal includes at least one of the following: synchronization signal block (SSB), channel state information-reference signal (CSI-RS), demodulation reference signal (DMRS), phase tracking reference signal (PTRS), and tracking reference signal (TRS). The measurement result includes at least one of the following: CQI, precoding matrix indicator (PMI), and rank indication (RI).

[0062] In some embodiments, before the base station feeds back interference measurement information to the sensing function management network element, the base station may also calculate some communication indicators on its own to determine whether to report potential interference and feed back interference measurement information. These indicators could include, for example, the bit error rate (BER) or bit error rate (BER) on a certain link, or the overall traffic monitored over a period of time. If these indicators show abnormalities, the base station may also report potential interference and feed back interference measurement information.

[0063] In some embodiments, before the core network element feeds back interference measurement information to the sensing function management network element, the core network element identifies the interference situation, determines that interference exists, and measures the interference to obtain interference measurement information.

[0064] The core network operates and carries some non-communication functions, such as positioning. For example, the location management function (LMF) in the core network can identify anomalies in the positioning results of a UE within a short period of time, exceeding the normal UE movement speed, or multiple UEs showing significant positioning deviations within a certain positioning area. These anomalies can be flagged and reported to the sensing function management network element. Similarly, the core network traffic statistics element can also detect regional traffic anomalies and report them to the sensing function management network element.

[0065] Understandably, for sensitive networks or key monitoring areas, SF can configure at least one first network node to perform periodic spectrum sensing or monitoring of communication / location indicators to determine whether there is suspected interference or unlicensed frequency band use (fake base stations, etc.) in a specific cell.

[0066] In some embodiments, the sensing reception configuration sent to at least one first network node further includes a reporting method for monitoring results of network functions such as spectrum sensing or communication. The reporting method includes at least one of the following: reporting once after configuration (e.g., configuring to perform spectrum sensing once, and reporting the result after completion), periodic, event-triggered, or pre-configured and triggered to start or terminate by MAC or physical layer signaling (e.g., MAC CE, DCI). Event-triggered reporting can be further configured with interference type, power threshold, interference mode, direction to be detected, etc. If the spectrum sensed by the network node uses a type consistent with the configuration, or its power is greater than the power threshold, or meets any configured condition or combination of conditions, then the result is reported.

[0067] In some embodiments, before sending the sensing and receiving configuration to the first network node, the method further includes: obtaining the location information of nodes in the network from the location management network element. Then, the first network node is configured based on the location information of the nodes in the network, thereby enabling sensing near potential interference sources to better capture interference sources and interference characteristics, thus providing better coverage of the entire physical cell.

[0068] For example, LMF can send existing node locations along with node identity information to SF. LMF can also initiate new positioning sessions to determine the locations of some nodes and inform SF of the positioning results.

[0069] Understandably, unlike traditional SF configurations, where configuring a network node as a sensing receiver requires configuring a reference signal to be received (which is normally known to the receiving node), this configuration differs from traditional SF configurations. In this case, the signal to be received is emitted by an external interference source, which is unknown to the network. Therefore, the configuration information differs from typical configurations. This configuration can be achieved by specifying at least one of the following: the sensing assistance data only indicates the frequency range (e.g., N subcarriers with a specific subcarrier spacing, or only the frequency range without specifying the subcarrier spacing) and the time period to be sensed.

[0070] In addition to the sensing waveforms and sequences used by the sensing network (e.g., Gold sequences, ZC sequences), additional interference waveforms and sequences (e.g., constant power sine waves) used by common interference sources are defined. These defined waveforms and sequences are not used by the sensing transmitting nodes in the network; they are only reserved sequences for interference identification. These waveforms and sequences can be designed to have low correlation with the waveforms and sequences used by the sensing reference signals used by the sensing network. With these predefined waveforms and sequences, SF can configure the sensing receiving nodes to receive signals according to a certain reserved sequence and calculate the interference power.

[0071] SF can configure sensing receiver nodes to use a sensing reference signal as a useful signal for the sensing network, but it does not actually configure the transmitters. For example, on certain specific time-frequency resources, SF configures some sensing receiver nodes to receive a pre-configured sensing reference signal, but does not configure any transmitter nodes to actually transmit this signal, and mutes the indicated time-frequency resources to ensure that the network does not transmit any signal on the indicated time-frequency resources. The receiver nodes receive the signal normally and calculate the SINR. Since the reference signal has 0 power, the signal power is 0, thus allowing the determination of interference and noise power.

[0072] For example, as shown in Figure 3, the SF configuration process for interference measurement and sensing includes the following steps 1 through 7b.

[0073] In step 1, the SF sends a Sensing Nodes Location Request (Optional) to the LMF.

[0074] In step 2, the UE and LMF establish a positioning session, execute the positioning process, determine the location information of the sensing node, and send the Positioning Session (Optional, depending on 1).

[0075] In step 3, the LMF sends the location information of the sensing nodes to the SF, for example, Sensing Nodes location update (Optional, depending on 1).

[0076] In step 4a, the SF sends a spectrum sensing request to the RAN. In step 4b, the SF sends a spectrum sensing request to the UE, for example, Spectrum Sensing Initiation (sent to TRPs and / or UEs).

[0077] In step 5, the UE and / or RAN perform spectrum sensing and localization operations, such as spectrum sensing and localization.

[0078] In step 6a, the RAN sends a spectrum sensing report to the SF. In step 6b, the UE sends a spectrum sensing report to the SF, for example, Spectrum Sensing Termination (sent to TRPs and / or UEs) (Optional, valid for periodic sensing).

[0079] Steps 5, 6a, and 6b can be executed periodically until steps 7a and 7b occur.

[0080] In step 7a, the SF sends a spectrum sensing termination indication, and in step 7b, the SF sends a spectrum sensing termination indication (optional, periodic sensing is valid), for example, Spectrum Sensing Termination.

[0081] In some embodiments, in response to receiving an interference measurement request from an external node, a sensing reception configuration is sent to the first network node. The external node may delegate the network to detect, identify, and locate interference sources in a specific frequency band. For example, a terrestrial digital broadcasting service provider might discover that customers are reporting poor digital television signal reception in a certain area, suspecting interference, and that someone may be illegally transmitting signals in a frequency band licensed for terrestrial digital broadcasting. Traditional methods involve deploying spectrum detection vehicles to the area for detection. However, terrestrial cellular networks, due to their numerous sites and terminals, can cover most areas of a city, thus enabling them to undertake external delegation.

[0082] For example, as shown in Figure 4, in response to receiving an interference measurement request from an external node, the SF configures the interference measurement and sensing process, which includes steps 0 to 9b.

[0083] In step 0, the SF receives a spectrum sensing request, such as a Spectrum Sensing Request, sent by an external node (i.e., AF / NEF / N3IWF (non-3GPP (3rd Generation Partnership Project) interworking function) in the diagram).

[0084] In step 1, the SF sends a Sensing Nodes Location Request (Optional) to the LMF.

[0085] In step 2, the UE and LMF establish a positioning session, execute the positioning process, determine the location information of the sensing node, and send the Positioning Session (Optional, depending on 1).

[0086] In step 3, the LMF sends the location information of the sensing nodes to the SF, for example, Sensing Nodes location update (Optional, depending on 1).

[0087] In step 4a, the SF sends a spectrum sensing request to the RAN. In step 4b, the SF sends a spectrum sensing request to the UE, for example, Spectrum Sensing Initiation (sent to TRPs and / or UEs).

[0088] In step 5, the UE and / or RAN perform spectrum sensing and localization operations, such as spectrum sensing and localization.

[0089] In step 6a, the RAN sends a spectrum sensing report to the SF, and in step 6b, the UE sends a spectrum sensing report to the SF, for example, a Spectrum Sensing Report(s).

[0090] In step 7, the SF sends a spectrum sensing report, such as a Spectrum Sensing Result, to the AF / NEF / N3IWF.

[0091] In step 8, the SF receives a spectrum sensing termination indication sent by the AF / NEF / N3IWF, for example, Spectrum Sensing Complete (Optional, valid for periodical sensing).

[0092] In step 9a, the SF sends a spectrum sensing termination indication to the RAN. In step 9b, the SF sends a spectrum sensing termination indication to the UE (optional, valid for periodic sensing), for example, Spectrum Sensing Termination (sent to TRPs and / or UEs).

[0093] Steps 5, 6a, 6b, and 7 can be executed periodically until steps 8, 9a, and 9b occur.

[0094] After identifying a suspected interference source in the network, the SF (Signal Detector) may still need to locate it. Following the aforementioned process, the SF collects measurement results reported from several nodes and makes some preliminary judgments, such as no interference or a high probability of suspected interference. The purpose of these steps is to determine the presence of interference and to obtain information related to the interference signal, such as power, direction, and mode. Next, the SF will attempt to locate the interference source and obtain more detailed information.

[0095] Understandably, in order to locate interference sources, SF can configure several nodes in the network (based on the geographical location and capabilities of these nodes) to perform a sensing task of A transmitting and B receiving without explicitly perceived signals. A is the possible interference source node, and B is the first network node configured by SF. SF will send sensing and receiving configurations to B, for example, disseminating preliminary knowledge about the interference signal to B, and configuring the corresponding sensing reference signal parameters for B to perform measurements.

[0096] In some embodiments, the sensing and receiving configuration is used to configure the first network node to receive interference signals.

[0097] In some embodiments, the sensing and receiving configuration is used to configure the first network node to receive interference signals, including any one of the following: the sensing and receiving configuration does not include configuration parameters for a sensing reference signal; the sensing and receiving configuration includes configuration parameters for a sensing reference signal used for interference measurement; the sensing and receiving configuration includes configuration parameters for a sensing reference signal with zero power.

[0098] In some embodiments, the configuration parameters of the sensing reference signal include at least one of the following: measurement time slot, observation window, process window, sensing reference signal sequence, waveform, and duty cycle.

[0099] In some embodiments, where the sensing reception configuration does not include configuration parameters for the sensing reference signal, the first network node will determine interference measurement information based on the default configuration.

[0100] In some embodiments, where the sensing and receiving configuration does not include configuration parameters for a sensing reference signal, the sensing and receiving configuration needs to include indication information. This indication information is used to indicate the interference source localization method employed, for example, locating the interference source through power measurement and angle of arrival estimation.

[0101] In some embodiments, the sensing and receiving configuration includes configuration parameters for a sensing reference signal with zero power. The location of the sensing reference signal with zero power is the time-frequency location to be measured, i.e., used to indicate the possible location of the interference signal on the time-frequency resources. In this case, the first network node needs to measure the channel itself and perform operations such as angle of arrival estimation, power measurement, and ranging based on the channel measurement results, thereby locating the interference source.

[0102] For example, to achieve the positioning objective, SF will configure several nodes in the network (based on their geographical location and capabilities) to perform a bistatic sensing task (A transmits, B receives, without explicitly perceived signals) (refer to the above description). SF will distribute the preliminary knowledge about the interference signals it has acquired to the nodes that need to perform sensing, and configure corresponding measurement time slots / observation windows / process windows for the nodes to perform measurements.

[0103] In the traditional A-to-transmit, B-to-receive model, the receiving node B should have prior knowledge of all information about the reference signal transmitted by A (e.g., when it was transmitted, its frequency domain location, sequence, etc.). However, in this case, there may not be such detailed information about the signal (because the signal here is transmitted by an interference source, which is not controlled by the network, and its transmitted signal cannot be fully known by the network). For this "A-to-transmit, B-to-receive sensing without a clear reference signal," there are several feasible configuration methods: defining a default configuration in the standard protocol; and not configuring any reference signal for B, specifying this in the issued configuration, and directly performing power measurement and angle of arrival estimation.

[0104] A default configuration, such as a periodic pulse wave or a continuous sine wave, is defined in the standard protocol to support simple energy detection and AoA estimation. If no explicit configuration is configured to sense a reference signal, the default configuration is used until it changes.

[0105] In the aforementioned steps, SF may obtain a simple pattern of the interference waveform (such as periodicity in time), which makes configuration easier (however, the obtained pattern may not be one of the waveforms and sequences defined in the standard protocol, so some patterns need to be reserved for this specific non-cooperative sensing requirement when defining the sensing reference signal). Here, some interference sensing reference signals specifically for interference sensing need to be defined, in the form of: several sensing reference signal sequences, waveforms, and duty cycles are predefined in the standard protocol, but marked as "dedicated to measuring external interference", such as periodic pulse waves or continuous sine waves.

[0106] No reference signal is configured for B, and the configuration provided indicates that power measurement and angle of arrival estimation will be performed directly.

[0107] Configure a zero-power reference signal for receiving node B. The zero-power reference signal indicates the possible location of this signal on the time-frequency resources, i.e., the time-frequency location to be measured. At this time, sensing receiving node B needs to measure the channel itself and perform operations such as angle of arrival estimation, power measurement, and ranging based on the channel measurement results.

[0108] Understandably, if the interference source is a moving target (such as an unauthorized drone), the coarse information about the interference source's location and speed obtained in the aforementioned process can assist SF in accurately locating the target. Here, SF can configure multiple nodes (first network node and second network node) to perform normal sensing tasks, requiring only the use of non-interference frequency bands.

[0109] For example, SF can configure nodes in the network to perform target localization and tracking tasks based on information obtained from previously identified suspected interference sources in the network, such as interference frequency bands, locations, orientations, and movement speeds of potential interference sources.

[0110] In some embodiments, a sensing and receiving configuration is sent to a first network node, the sensing and receiving configuration including at least one of the following: a recommended precoding method, a recommended orientation of the received signal, and interference measurement information.

[0111] Interference measurement information includes at least one of the following: the possible RCS (radar cross-section) size of the interference source, the possible velocity of the interference source, the possible orientation of the interference source, and the possible location of the interference source.

[0112] Interference measurement information may also include some or all of the content described above in the interference measurement information.

[0113] In some embodiments, a sensing transmission configuration is sent to a second network node. The sensing transmission configuration includes at least one of the following: frequency bands to be avoided, waveforms to be avoided, sequences to be avoided, recommended transmit power, recommended precoding method, and recommended orientation of the transmitted signal.

[0114] Frequency bands to avoid are those that may be subject to interference. Waveforms to avoid are those that may be confused with signals emitted by interference sources. Sequences to avoid are those that may be confused with signals emitted by interference sources. The recommended transmit power is the power that provides a good signal-to-noise ratio and performance under interference conditions.

[0115] In this way, SF can configure the nodes in the network to perform target localization and tracking tasks based on previously obtained information about the interference frequency band, location, orientation, and movement speed of potential interference sources. At the same time, it can send sensing and receiving configurations to the first network node and sensing and transmitting configurations to the second network node to better locate interference sources and improve accuracy.

[0116] In S102, the sensing function management network element receives interference measurement information based on the sensing reception configuration determined by the first network node.

[0117] In some embodiments, the interference measurement information includes at least one of the following: waveform of the interference signal, sequence of the interference signal, interference intensity, identification of suspected interference source node, location of the interfered node, azimuth of the received interference, suspected interference frequency band, index of interfered signal resources, interference mode, location of the interference source, radar cross-section of the interference source, object type of the interference source, velocity of the interference source, height of the interference source, type of the interfered reference signal, port of the interfered reference signal, beam pointing vector of the interfered beam, precoding matrix of the beam, current channel conditions directly measured by the receiver, channel impulse response, power delay spectrum, delay distribution, channel matrix related information, channel information measured on the strongest first preset number of paths, channel information measured on the weakest second preset number of paths, index of receiving antenna reference point, interference-related time information, interference-related frequency band, interference-related bandwidth, interference-related waveform, interference-related sequence, interference-related power, and orientation of the interference source.

[0118] In S103, the sensing function management network element determines the existence of an interference source based on interference measurement information and locates the interference source.

[0119] After identifying a suspected interference source in the network, further localization may be required. Following the aforementioned process, the SF (Signal Detector) collects measurement results (including interference measurement information) reported from several nodes. The SF makes some preliminary judgments, such as no interference or a high probability of suspected interference. The purpose of these steps is to determine the presence of interference and to obtain information related to the interference signal, such as power, direction, and mode. Next, the SF will attempt to locate the interference source and obtain more detailed information.

[0120] In some embodiments, the location of the interference source can be based not only on interference measurement information, but also on information fed back by various network nodes in the above embodiments.

[0121] In this way, after the network node configured by the sensing function management network element receives the interference measurement information determined based on the sensing reception configuration from the first network node, it can also refer to all the interference-related information received above to obtain a more accurate result when calculating the location of the interference source.

[0122] In some embodiments, locating the interference source based on interference measurement information includes: locating the interference source based on a location method and interference measurement information.

[0123] The positioning method includes at least one of the following: a positioning method based on angle of arrival, a positioning method based on time difference of arrival, a positioning method based on time of arrival, a positioning method based on departure angle, a positioning method based on received signal strength indication, and a positioning method based on channel environment fingerprint.

[0124] In some embodiments, when locating the interference source based on the channel environment fingerprinting method and interference measurement information, a pre-trained dataset can also be referenced.

[0125] In some embodiments, locating an interference source based on a positioning method and interference measurement information includes: when the positioning method is a positioning method based on time of arrival or time difference of arrival, acquiring waveform information and time information of signals sampled by multiple first network nodes; determining the signal transmission delay or signal transmission delay difference between the interference source and each first network node based on the waveform information and time information of the signals sampled by the multiple first network nodes; and determining the location of the interference source based on the signal transmission delay or signal transmission delay difference between the interference source and each first network node.

[0126] For example, as shown in Figure 5, different network nodes select segments of received signals of varying lengths. SF identifies similar portions (the common parts within the rectangles in the figure above) and calculates the time difference between the arrival times of the signals at the three network nodes. For instance, the time difference between arrival times at network node 1 and network node 3 is T3-T1. Based on the time differences between the arrival times of the signals at the three network nodes and the speed of light, the location of the interference source can be determined.

[0127] In some embodiments, a first message is sent to a third network node, the first message being used to ensure that the transmission resources occupied by the signal sent by the third network node do not overlap with the transmission resources used by the first network node for interference measurement.

[0128] For example, since SF (Sensitive Signal Controller) requires the configuration of several sensing nodes to monitor suspected interference signals, if other nodes in the network that are normally conducting business are using overlapping frequency bands, it will increase the difficulty of monitoring (effectively reducing the signal-to-noise ratio at the monitoring end). To avoid or mitigate this phenomenon, SF can configure nodes in the network (base stations, terminals) to avoid using a certain frequency band and provide a time period for avoidance, or it can configure other SF or network management modules. SF can suggest the location of time-frequency resources that need to be silenced, or suggest changing the comb structure of certain signal transmissions, such as changing comb1 to comb2.

[0129] In some embodiments, the sensing function management network element is further configured to perform at least one of the following: instructing, configuring, or suggesting that the fourth network node shut down or suspend the execution of sensing tasks, and specifying the duration or periodicity of the shutdown or suspension; instructing, configuring, or suggesting that the fourth network node shut down or suspend service information, and specifying the duration or periodicity of the shutdown or suspension; instructing, configuring, or suggesting frequency band usage rules for the fourth network node, and specifying the duration or periodicity of such instruction, configuration, or suggestion; sending interference measurement information to the fourth network node; sending interference measurement information to an external node; and sending interference measurement information to another sensing function management network element.

[0130] The fourth network node can be a sensing transmitting node, a sensing receiving node, a communication transmitting node, a communication receiving node, a node that has previously reported suspected interference, a network management node / module, an external node, etc.

[0131] In this way, on the one hand, SF can report the frequency bands and cells affected by interference and issue spectrum usage policies; on the other hand, SF can configure sensing nodes to provide interference information to the sensing nodes so that the sensing nodes can adjust parameters such as thresholds and continue normal services even when there is interference.

[0132] In some embodiments, after determining the presence of an interference source, the fourth network node is instructed to suspend the sensing task to save power. Simultaneously, some nodes can be configured to periodically perform spectrum sensing, and the sensing service can be restarted after the interference source disappears (configuration information includes interference measurement information).

[0133] In some embodiments, after determining that an interference source exists, the sensing function management network element can configure the service information that the fourth network node (such as a base station, terminal, etc.) is advised to shut down.

[0134] In some embodiments, after determining the existence of an interference source, if the interference source is moving towards another sensing area, the existence of the interference and the interference measurement information are sent to another sensing function management network element so that the other sensing function management network element can understand the interference situation in a timely manner and perform subsequent operations.

[0135] In some embodiments, after determining the existence of an interference source, frequency band usage rules are configured for the fourth network node, including: which frequency band to avoid, and the validity period of the configuration (periodic avoidance, avoidance until a certain period of time, or avoidance until a command to cancel avoidance is sent). In this way, the fourth network node can avoid the interfered frequency band in communication services based on the frequency band usage rules.

[0136] Frequency band usage rules and / or instructions to suspend the execution of sensing tasks, and service information that is recommended to be shut down, can be sent by the SF to the network management module or other SFs, and then sent to the fourth network node through the network management module or other SFs.

[0137] In some embodiments, when the presence of an interference source is determined but services continue, the SF can send interference measurement information (including precise waveform, bandwidth, frequency band, sequence, etc. of the interference signal) to the fourth network node to assist the fourth network node in direct interference cancellation. This way, the fourth network node has the interference measurement information and can still perform some sensing or communication tasks even in the presence of interference. For example, it can dynamically change the detection threshold to continue supporting target detection, or reduce the modulation order to continue communication. In addition to the interference measurement information, the configuration of the fourth network node adds: suggested detection thresholds related to sensing tasks, suggested data modulation methods, and modulation orders. After such configuration, the configured thresholds need to be dynamically adjusted based on real-time monitoring, and the configuration needs to be reset after the interference disappears. During configuration, interference categories can also be configured, such as three levels of "high, medium, and low," or several SINR levels.

[0138] Understandably, if the presence of an interference source is confirmed but services continue, SF can enable different sensing transceiver nodes in the sensing task, or configure more nodes to participate in the sensing task, to achieve the required accuracy, depending on the interference situation.

[0139] In some embodiments, the SF can send interference measurement information to external nodes. For example, the SF reports interference measurement information to external nodes through a direct interface or other network elements (such as application function (AF) or network exposure function (NEF)). External nodes may be spectrum administration agencies, regulatory agencies, sensing service users, communication service users, etc.

[0140] Based on this, by actively sending sensing and receiving configurations and receiving interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, enabling precise location of the interference source. This helps to solve the interference problem in the integrated communication and sensing scenario and improves the intelligent management and maintenance efficiency of the network.

[0141] The foregoing mainly describes the solutions of the embodiments of this disclosure from a methodological perspective. The following also illustrates an interference source localization device for executing the interference source localization method in any of the above embodiments and their implementations. It is understood that the interference source localization device, in order to implement the interference source localization method, includes hardware structures and / or software modules corresponding to the execution of each function; those skilled in the art should readily recognize that, in conjunction with the algorithm steps of the various examples described in the embodiments of this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0142] This disclosure embodiment can divide the interference source localization device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0143] Figure 6 illustrates an interference source localization device according to an embodiment of the present disclosure, applied to a sensing function management network element. The interference source localization device 600 includes a communication module 601 and a processing module 602.

[0144] The communication module 601 is used to send the sensing and receiving configuration to the first network node.

[0145] The communication module 601 is also used to receive interference measurement information based on the sensing reception configuration determined by the first network node.

[0146] The processing module 602 is used to determine whether an interference source exists and to locate the interference source based on interference measurement information.

[0147] In some embodiments, the interference measurement information includes at least one of the following: waveform of the interference signal, sequence of the interference signal, interference intensity, identification of suspected interference source node, location of the interfered node, azimuth of the received interference, suspected interference frequency band, index of interfered signal resources, interference mode, location of the interference source, radar cross-section of the interference source, object type of the interference source, velocity of the interference source, height of the interference source, type of the interfered reference signal, port of the interfered reference signal, beam pointing vector of the interfered beam, precoding matrix of the beam, current channel conditions directly measured by the receiver, channel impulse response, power delay spectrum, delay distribution, channel matrix related information, channel information measured on the strongest first preset number of paths, channel information measured on the weakest second preset number of paths, index of receiving antenna reference point, interference-related time information, interference-related frequency band, interference-related bandwidth, interference-related waveform, interference-related sequence, interference-related power, and orientation of the interference source.

[0148] In some embodiments, the sensing and receiving configuration is used to configure the first network node to receive interference signals.

[0149] In some embodiments, the sensing and receiving configuration is used to configure the first network node to receive interference signals, including any one of the following: the sensing and receiving configuration does not include configuration parameters for a sensing reference signal; the sensing and receiving configuration includes configuration parameters for a sensing reference signal used for interference measurement; the sensing and receiving configuration includes configuration parameters for a sensing reference signal with zero power.

[0150] In some embodiments, the sensing and receiving configuration includes at least one of the following: a recommended precoding method, a recommended orientation of the received signal, and interference measurement information.

[0151] In some embodiments, the communication module 601 is configured to send a sensing transmission configuration to a second network node. The sensing transmission configuration includes at least one of the following: frequency bands to be avoided, waveforms to be avoided, sequences to be avoided, recommended transmit power, recommended precoding method, and recommended orientation of the transmitted signal.

[0152] In some embodiments, the processing module 602, for example, is used to locate the interference source based on a positioning method and interference measurement information. The positioning method includes at least one of the following: a positioning method based on angle of arrival, a positioning method based on time difference of arrival, a positioning method based on time of arrival, a positioning method based on departure angle, a positioning method based on received signal strength indication, and a positioning method based on channel environment fingerprint.

[0153] In some embodiments, the processing module 602 is configured to: when the positioning method is a positioning method based on arrival time or time difference of arrival, acquire waveform information and time information of signals sampled by multiple first network nodes; determine the signal transmission delay or signal transmission delay difference between the interference source and each first network node based on the waveform information and time information of the signals sampled by the multiple first network nodes; and determine the location of the interference source based on the signal transmission delay or signal transmission delay difference between the interference source and each first network node.

[0154] In some embodiments, the communication module 601 is configured, for example, to: send a sensing and receiving configuration to a first network node in response to determining that a suspected interference source exists in the network; or, to send a sensing and receiving configuration to the first network node in response to receiving an interference measurement request from an external node.

[0155] In some embodiments, the processing module 602 is configured to determine, for example, based on at least one of the following: interference measurement information fed back by a base station; interference measurement information fed back by a terminal; interference measurement information fed back by a device connected in the network; and interference measurement information fed back by a core network element.

[0156] In some embodiments, the communication module 601 is configured to: send first information to a third network node, the first information being configured to ensure that the transmission resources occupied by the signal sent by the third network node do not overlap with the transmission resources used by the first network node for interference measurement.

[0157] In some embodiments, the processing module 602 is further configured to: instruct, configure, or suggest that the fourth network node shut down or suspend the execution of sensing tasks, and the duration or periodicity of the shutdown or suspension; instruct, configure, or suggest that the fourth network node shut down or suspend service information, and the duration or periodicity of the shutdown or suspension; instruct, configure, or suggest frequency band usage rules for the fourth network node, and the duration or periodicity of such instruction, configuration, or suggestion; send interference measurement information to the fourth network node; send interference measurement information to external nodes; and send interference measurement information to another sensing function management network element.

[0158] In some embodiments, the communication module 601 is further configured to: query and receive capability information of the first network node. The capability information includes at least one of the following: interference measurement mode and interference reporting mode.

[0159] In some embodiments, the communication module 601 is further configured to: obtain location information of nodes in the network from the location management network element.

[0160] In implementing the functions of the integrated modules described above in hardware, this disclosure also provides a structure for a communication device used to execute the interference source localization method provided in this disclosure. As shown in FIG7, the communication device 700 includes: a communication interface 703, a processor 702, and a bus 704. In some embodiments, the communication device may further include a memory 701.

[0161] Processor 702 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof, and may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 702 may also be a combination that implements computing functions, for example, including one or more microprocessor combinations, a combination of a DSP (digital signal processor) and a microprocessor, etc.

[0162] The communication interface 703 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0163] The memory 701 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0164] In one implementation, the memory 701 can exist independently of the processor 702. The memory 701 can be connected to the processor 702 via a bus 704 and is used to store instructions or program code. When the processor 702 calls and executes the instructions or program code stored in the memory 701, it can implement the interference source localization method provided in this embodiment.

[0165] In another implementation, the memory 701 can also be integrated with the processor 702.

[0166] Bus 704 can be an extended industry standard architecture (EISA) bus, etc. Bus 704 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 7, but this does not mean that there is only one bus or one type of bus.

[0167] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform the interference source localization method as described in any of the above embodiments.

[0168] In one exemplary embodiment, the computer may be the aforementioned interference source locating device, and this disclosure does not limit the form of the computer.

[0169] In some examples, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices for storing information and / or other machine-readable storage media. The term "machine-readable storage media" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0170] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the interference source localization method described in any of the above embodiments.

[0171] In the technical solution provided by this disclosure, a sensing and receiving configuration is sent to a first network node; interference measurement information determined based on the sensing and receiving configuration is received from the first network node; based on the interference measurement information, the existence of an interference source is determined, and the interference source is located. In this way, by actively sending the sensing and receiving configuration and receiving interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, enabling precise location of the interference source. This helps solve interference problems in integrated communication and sensing scenarios and improves the intelligent management and maintenance efficiency of the network.

[0172] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An interference source localization method, applied to a sensing function management network element, comprising: Send the sensing and receiving configuration to the first network node; Receive interference measurement information based on the sensing and receiving configuration fed back by the first network node; Based on the interference measurement information, the existence of the interference source is determined, and the interference source is located.

2. The method according to claim 1, wherein, The interference measurement information includes at least one of the following: waveform of the interference signal, sequence of the interference signal, interference intensity, identification of suspected interference source node, location of the interfered node, azimuth of the received interference, suspected interference frequency band, index of the interfered signal resource, interference mode, location of the interference source, radar cross-section of the interference source, object type of the interference source, velocity of the interference source, height of the interference source, type of the interfered reference signal, port of the interfered reference signal, beam pointing vector of the interfered beam, precoding matrix of the beam, current channel conditions directly measured by the receiver, channel impulse response, power delay spectrum, delay distribution, channel matrix related information, channel information measured on the strongest first preset number of paths, channel information measured on the weakest second preset number of paths, index of the receiving antenna reference point, interference-related time information, interference-related frequency band, interference-related bandwidth, interference-related waveform, interference-related sequence, interference-related power, and orientation of the interference source.

3. The method according to claim 1, wherein, The sensing and receiving configuration is used to configure the first network node to receive interference signals.

4. The method according to claim 3, wherein, The sensing and receiving configuration is used to configure the first network node to receive the interference signal, including any one of the following: The sensing and receiving configuration does not include the configuration parameters for the sensing reference signal; The sensing and receiving configuration includes configuration parameters for a sensing reference signal used for interference measurement; The sensing and receiving configuration includes configuration parameters for a sensing reference signal with zero power.

5. The method according to claim 1, wherein, The sensing and receiving configuration includes at least one of the following: Recommended precoding method, recommended direction of received signal, and interference measurement information.

6. The method according to claim 5, further comprising: Send a sensing transmission configuration to the second network node. The sensing transmission configuration includes at least one of the following: frequency bands to avoid, waveforms to avoid, sequences to avoid, recommended transmit power, recommended precoding method, and recommended orientation of the transmitted signal.

7. The method according to claim 1, wherein, The step of determining whether the interference source exists and locating the interference source based on the interference measurement information includes: The interference source is located based on the positioning method and the interference measurement information. The positioning method includes at least one of the following: a positioning method based on angle of arrival, a positioning method based on time difference of arrival, a positioning method based on time of arrival, a positioning method based on departure angle, a positioning method based on received signal strength indication, and a positioning method based on channel environment fingerprint.

8. The method according to claim 7, wherein, The step of determining whether an interference source exists and locating the interference source based on the positioning method and the interference measurement information includes: When the positioning method is the positioning method based on arrival time or time difference of arrival, waveform information and time information of signals sampled by multiple first network nodes are obtained; Based on the waveform and timing information of the signals sampled by the plurality of first network nodes, the signal transmission delay or signal transmission delay difference between the interference source and each first network node is determined. The location of the interference source is determined based on the signal transmission delay or signal transmission delay difference between the interference source and each first network node.

9. The method according to claim 1, wherein, Sending the sensing reception configuration to the first network node includes: In response to determining that a suspected interference source exists in the network, the sensing and receiving configuration is sent to the first network node; or... In response to receiving an interference measurement request from an external node, the sensing and receiving configuration is sent to the first network node.

10. The method according to claim 9, wherein, The determination of the suspected presence of the interference source in the network includes: The presence of the suspected interference source in the network is determined based on at least one of the following: Interference measurement information fed back by the base station; Interference measurement information fed back by the terminal; Interference measurement information fed back by devices connected in the network; Interference measurement information fed back by core network elements.

11. The method according to claim 1, further comprising: Send first information to a third network node, the first information being used to ensure that the transmission resources occupied by the signal sent by the third network node do not overlap with the transmission resources used by the first network node for interference measurement.

12. The method of claim 1, further comprising at least one of the following: Instruct, configure, or recommend that the fourth network node shut down or suspend the performance of sensing tasks, and specify the duration or periodicity of the shutdown or suspension; Instructions, configurations, or suggestions are made regarding the service information to be turned off or suspended by the fourth network node, as well as the duration or periodicity of such shutdown or suspension; Indicate, configure, or suggest frequency band usage rules for the fourth network node, as well as the duration or periodicity of such indication, configuration, or suggestion; The interference measurement information is sent to the fourth network node; Send the interference measurement information to external nodes; The interference measurement information is sent to another sensing function management network element.

13. The method according to claim 1, further comprising: The system queries and receives capability information of the first network node, the capability information including at least one of the following: interference measurement mode and interference reporting mode.

14. The method according to claim 1, wherein, Before sending the sensing reception configuration to the first network node, the method further includes: Obtain the location information of nodes in the network from the location management network element.

15. A communication device, comprising: A memory and a processor; wherein the memory is coupled to the processor; the memory is used to store instructions executable by the processor; and the processor executes the instructions to perform the method according to any one of claims 1 to 14.

16. A computer-readable storage medium, wherein, The computer-readable storage medium stores computer instructions that, when executed on a communication device, cause the communication device to perform the method according to any one of claims 1 to 14.

17. A computer program product, wherein, When the computer program product is executed, it implements the method according to any one of claims 1 to 14.

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