Interference source positioning method and device, storage medium and program product

Abstract

The invention provides an interference source positioning method and device, a storage medium and a program product, relates to the technical field of communication, and helps to solve the interference problem under communication perception integration. The method comprises the following steps: sending perception receiving configuration to a first network node; receiving interference measurement information which is fed back by the first network node and is determined based on the sensing receiving configuration; and judging whether an interference source exists or not based on the interference measurement information, and positioning the interference source.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an interference source positioning method, device, storage medium and program product. Background Art

[0002] In the integrated communication and perception system, in order to support the perception mode of base station self-transmission and self-reception or terminal self-transmission and self-reception, it is necessary to break through the limitations of traditional duplex and improve spectrum efficiency and system flexibility. However, the challenge brought by this innovation is that when the uplink and downlink transmit signals at the same frequency at the same time, it will bring serious self-interference and cross-interference problems, and the equipment or network needs to take certain interference suppression and elimination measures. In addition, even in other perception modes, such as A send B receive perception mode, there are interference problems. Furthermore, in the design of separation of perception and communication functions, there is also interference between perception and communication. Therefore, in the process of promoting the integrated communication and perception system, solving these interference problems will be an important task we need to face. Summary of the invention

[0003] The embodiments of the present disclosure provide a method, device, storage medium and program product for locating interference sources, which are helpful for solving interference problems under integrated communication perception. The technical solutions provided by the embodiments of the present disclosure are as follows:

[0004] On the one hand, a method for locating an interference source is provided, which is applied to a perception function management network element, and the method includes:

[0005] Sending a sensing reception configuration to the first network node;

[0006] receiving interference measurement information determined based on the sensing reception configuration fed back by the first network node;

[0007] Based on the interference measurement information, it is determined whether the interference source exists and the interference source is located.

[0008] On the other hand, an interference source positioning device is provided, which is applied to a perception function management network element, and the device includes:

[0009] A communication module, configured to send a sensing reception configuration to a first network node;

[0010] The communication module is further configured to receive interference measurement information determined based on the sensing reception configuration fed back by the first network node;

[0011] The processing module is used to determine whether an interference source exists based on the interference measurement information and to locate the interference source.

[0012] On the other hand, 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, the interference source locating method of any of the above embodiments is implemented.

[0013] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed on a computer (such as a communication device or an interference source locating device), the interference source locating method of any of the above embodiments is implemented.

[0014] On the other hand, a computer program product is provided. The computer program product includes computer program instructions. When the computer program instructions are executed, the interference source positioning method of any of the above embodiments is implemented.

[0015] The technical solution provided by the embodiment of the present disclosure is to send a sensing reception configuration to the first network node; receive interference measurement information determined based on the sensing reception configuration fed back by the first network node; based on the interference measurement information, determine whether the interference source exists and locate the interference source. In this way, by actively sending the sensing reception configuration and receiving the interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, and the interference source can be accurately located. It helps to solve the interference problem in the integrated communication perception scenario and improves the intelligent management and maintenance efficiency of the network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0017] Figure 2 A flowchart of an interference source positioning method provided by an embodiment of the present disclosure;

[0018] Figure 3 An interactive flow chart of interference measurement and perception provided by an embodiment of the present disclosure;

[0019] Figure 4 Another interactive flow chart of interference measurement and perception provided by an embodiment of the present disclosure;

[0020] Figure 5 A comparison diagram of signals received by different network nodes provided in an embodiment of the present disclosure;

[0021] Figure 6 A schematic diagram of the structure of an interference source locating device provided in an embodiment of the present disclosure;

[0022] Figure 7 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0024] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "plurality" means two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0025] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0026] Ground cellular mobile communication systems may be interfered with by external sources, such as fake base stations that illegally use authorized frequency bands, drones that attempt to interfere with the perception system, etc. Ground mobile communication systems are currently supporting inter-sensory integration, which can detect, identify interference sources and attempt to locate them.

[0027] ISAC: Communication and perception capabilities are integrated and coexist, giving the network the ability to support communication and to perceive the physical world. The perception capability mainly focuses on wireless signal perception to complete functions such as positioning, ranging, speed measurement, imaging, detection, identification, and environmental reconstruction. By sending and receiving perception signals between perception nodes or a single perception node, the direct, reflected, scattered, and diffracted signals of the wireless signal are analyzed to obtain the perception results of the perceived target or environment. In addition, wireless perception measurements can also be combined with radars, cameras, etc. to obtain the final perception results.

[0028] Among them, the perception modes include monostatic, bistatic, and multi-static, etc. Specifically, they include: base station monostatic (single-station perception), base station A transmits and B receives (bistatic), base station transmits and terminal receives, terminal transmits and base station receives, terminal monostatic, terminal A transmits and B receives, and multi-static (combination of any of the above perception modes).

[0029] Assume a simple form of interference (jamming): continuously transmit power in the frequency band used for sensing. For communication and sensing services, this is equivalent to reducing the signal to interference plus noise ratio (SINR) on the receiver side, thereby reducing the accuracy of communication and sensing services or even interrupting them. Specifically, for communication services, a reduction in SINR will increase the bit error rate and bit error rate, causing the quality of the communication link to deteriorate; for sensing services, sensing receivers generally use a constant false alarm algorithm. In order to maintain a constant false alarm rate, the algorithm will reduce the detection threshold in the presence of interference, which will cause the detection probability to decrease at the same time, thus reducing the probability of detecting unauthorized drones. It can be simply understood that for sensing services, interference is equivalent to reducing the equivalent signal to noise ratio (SNR), making the background noise higher and the detection probability lower. At the same time, for range estimation, angle of arrival estimation (AoAestimation), etc., there will also be interference effects, which may cause all sensing functions in the cell to be inaccurate.

[0030] In view of this, the present disclosure provides a method for locating interference sources, by sending a sensing reception configuration to a first network node; receiving interference measurement information determined based on the sensing reception configuration fed back by the first network node; based on the interference measurement information, determining whether the interference source exists, and locating the interference source. In this way, by actively sending the sensing reception configuration and receiving the interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, and the interference source can be accurately located. This helps to solve the interference problem in the integrated communication and perception scenario, and improves the intelligent management and maintenance efficiency of the network.

[0031] The network architecture of the communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the embodiments of the present disclosure may include at least a first network node, a second network node, a third network node, a fourth network node, and a perception function management network element.

[0032] In some embodiments, at least one of the first network node, the second network node, the third network node, and the fourth network node may be a communication node, a perception node, or a synaesthesia node.

[0033] In some embodiments, at least one of the first network node, the second network node, the third network node, and the fourth network node may be an interfered node or an interference source node.

[0034] In some embodiments, the functions of the sensing function management network element (sensing function, SF, or sensing core network, management network element, etc.) include spectrum sensing (sense spectrum usage, i.e., whether there is significant power in a specific frequency band) in addition to the traditional detection, tracking, and positioning of objects in the environment. The sensing function management network element can exist independently of the core network.

[0035] 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, and a synaesthesia node. The interfered node may include but is not limited to at least one of the following: a communication node, a sensing node, and a synaesthesia node.

[0036] Among them, a sensing node refers to a wireless sensing node that participates in the sending or receiving of sensing signals. Sensing nodes include but are not limited to: base stations (gNB or TRP), terminals (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 in the network, so their capabilities are required to be able to receive and process wireless signals and to connect to other network nodes (wired or wireless).

[0037] In some embodiments, the sensing node can be divided into a sensing receiving node and a sensing sending node. A sensing receiving node (or simply a receiving node, a receiving end) refers to a node with the ability to receive and process wireless signals, which can be: a base station (gNB or TRP), a terminal (UE), and other networked devices. A sensing sending node (or simply a sending node, a sending end) refers to a node with the ability to receive and process wireless signals, which can be: a base station (gNB or TRP), a terminal (UE), and other networked devices.

[0038] In some embodiments, the perception signal sending configuration includes at least one or more items: identification information of the perception reference signal, the number of time domain symbols of the perception reference signal, the period of the perception reference signal, the transmission beam configuration of the perception reference signal, the comb structure size of the perception reference signal, the comb offset of the perception reference signal, the time domain offset of the perception reference signal, the bandwidth of the perception reference signal, the time domain position of the perception reference signal, the power configuration information of the perception reference signal, etc.

[0039] A communication node refers to a wireless communication node that participates in sending or receiving communication signals. Communication nodes include but are not limited to: base stations (gNB or TRP), terminals (UE), routers, and relay nodes.

[0040] The synesthesia integrated nodes include but are not limited to base stations and terminals. Among them, the role of the synesthesia integrated node is to send or node synesthesia integrated signals through the wireless air interface according to the configuration requirements. The communication node can receive the communication signal and process it to obtain the communication information. The perception receiving terminal can receive the synesthesia integrated signal scattered by the perception target and perform perception processing to obtain the perception information.

[0041] In the present disclosure, a network node configures other nodes. Corresponding to the configuration, the configured node can report whether it has the above capabilities, such as whether it supports certain measurement modes, certain reporting modes, etc. They are not listed one by one in the text. The node performing the configuration can issue a request to inquire or update the capabilities, and the configured node will feedback the currently supported capabilities, so that the node performing the configuration can issue the configuration in a targeted manner according to different capabilities. In the present disclosure, the configuration sending method at least includes sending through auxiliary information (assistance data), and the method of querying node capabilities and node feedback capabilities also at least includes sending through auxiliary information (assistance data).

[0042] For example, Figure 1 FIG. 1 is a schematic diagram showing an architecture of a communication system provided by an embodiment of the present disclosure. Figure 1 As shown, 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 the multiple terminals can be connected in communication. One base station can provide network services to a terminal in one cell, and can also provide network services to terminals in multiple cells at the same time.

[0043] In some embodiments, a base station is used to receive or send communication signals.

[0044] In some embodiments, the base station is used to send a perception signal, and receive a signal scattered by a perception target and perform perception processing to obtain perception information.

[0045] In some embodiments, the base station may send a sensing signal to sense the target, and the base station may receive an echo signal of the sensing signal from the target to obtain sensing information. Alternatively, the base station may send a sensing signal to sense the target, and the terminal may receive an echo signal of the sensing signal from the target to obtain sensing information.

[0046] In some embodiments, the base station may be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network side devices such as primary cells and secondary cells.

[0047] In some embodiments, the terminal may be a device with wireless transceiver function, which may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it may also be deployed on the water surface (such as ships, etc.); it may also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. A terminal may sometimes 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 equipment, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0048] It should be noted that Figure 1 This is just an exemplary framework diagram. Figure 1 The number of devices included in the Figure 1 In addition to the devices shown, the communication system may also include other devices, such as core network devices.

[0049] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0050] The embodiment of the present disclosure provides a method for locating an interference source, which is applied to a perception function management network element. Figure 2 As shown, the method comprises the following steps:

[0051] S101. The perception function management network element sends a perception reception configuration to a first network node.

[0052] It can be understood that the perception function management network element sending the perception reception configuration to the first network node may include two situations, one is that the perception function management network element actively collects and analyzes the reported interference conditions, and decides whether to turn on interference detection and identify the interference source; the other is that the perception function management network element passively turns on interference detection and identifies the interference source. If the perception function management network element turns on interference detection, it sends the perception reception configuration to the first network node, and performs subsequent operations.

[0053] In some embodiments, the sensing function management network element queries and receives capability information of the first network node, wherein the capability information includes at least one of the following: interference measurement mode and interference reporting mode, so as to determine the sensing reception configuration sent to the first network node based on the capability information of the first network node.

[0054] In some embodiments, the sensing function management network element sends the sensing reception configuration to the first network node, including:

[0055] In response to determining that there is a suspected interference source in the network, sending a sensing reception configuration to the first network node; or,

[0056] In response to receiving an interference measurement request from an external node, sending a sensing reception configuration to the first network node.

[0057] It is understandable that, in response to determining that there is a suspected interference source in the network, the communication node in the network can find that the quality of the communication link has decreased and feedback to the perception function management network element. Or the non-communication function (such as positioning) in the network finds that the function is unknown and feedback to the perception function management network element.

[0058] In some embodiments, determining that a suspected interference source exists in the network includes:

[0059] Determine whether there is a suspected interference source in the network based on at least one of the following:

[0060] Interference measurement information fed back by the base station;

[0061] Interference measurement information fed back by the terminal;

[0062] Interference measurement information fed back by devices connected to the network;

[0063] Interference measurement information fed back by core network elements.

[0064] In some embodiments, the interference measurement information includes at least one of the following: a waveform of an interference signal, a sequence of an interference signal, interference intensity, an identification of a suspected interference source node (such as an identity of a terminal or an identity of a base station), a location of an interfered node, a direction of receiving interference (such as expressed in terms of a base station sector or in terms of beam pointing), a suspected interference frequency band (such as a certain band or a subband), an index of interfered signal resources, a mode of interference (such as whether there is periodicity in time, an area where energy is concentrated in the frequency domain, etc.), a location of the interference source, and a radar cross-sectional area (radar cross-sectional area) of the interference source. section,RCS), object type of the interference source (such as a drone), speed of the interference source (including speed magnitude and direction), height of the interference source, type of reference signal interfered with, port of the reference signal interfered with (if the interference is felt when measuring the reference signal), beam pointing vector interfered with, precoding matrix of the beam (PMI), current channel condition directly measured by the receiving end, channel impulse response (CIR), power delay profile (PDP), delay distribution (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 direction of the interference source.

[0065] The interference intensity can be a qualitative description of the degree, or it can be a quantified result of measuring the interference power, such as SNR, SINR, channel quality indicator (CQI), RSSI. The time information related to interference includes the time when the interference occurred (which can be used as a complete record and evidence of the interference event). The information related to the channel matrix includes the channel matrix H and its mathematically transformed representation (such as the feature space of the channel matrix H).

[0066] The interference measurement information in the present disclosure may also have other names, such as interference-related information, which is not limited to this.

[0067] In some embodiments, the interference measurement information fed back by the terminal may be determined by the terminal measuring a reference signal configured by the network.

[0068] It is understandable that the terminal can also be referred to as a generalized network node, such as an IAB, a relay, a roadside station, etc. For example, a terminal in an idle state (i.e., IDLE), a connected state (i.e., CONNECTED), and a deactivated state (i.e., INACTIVE) can measure the reference signal configured by the network, and suspected interference may be found in the process, which is then fed back to the SF.

[0069] In some embodiments, the interference measurement information fed back by the terminal may be sent directly or indirectly to the perception function management network element.

[0070] Exemplarily, when the terminal measures the reference signal and calculates the indicator to be fed back (such as channel quality indication information estimated according to SINR), if suspected interference is found, the interference measurement information can be fed back to the base station or SF or other network elements / nodes in the network.

[0071] For example, if the base station configures a positioning reference signal for the terminal to measure, in addition to the above-mentioned interference measurement information, the terminal can also feedback the port used to measure the positioning reference signal (PRS) and the interfered positioning reference signal sequence number after discovering the abnormality. After receiving the report from the terminal, the base station reports the interference measurement information to the perception function management network element, and reports the quasi co-location (QCL) relationship between the reference signal that receives potential interference and other reference signals, as well as the port number used by the base station to send.

[0072] In some embodiments, before the base station feeds back the interference measurement information to the perception function management network element, the base station configures the terminal to measure a specific reference signal to monitor the channel condition in real time, and feeds back the measurement result to the base station. The base station can determine whether there is abnormal deterioration based on the measurement result fed back by the terminal, whether to report the potential interference and feed back the interference measurement information.

[0073] In some embodiments, the reference signal includes at least one of the following: a synchronization signal block

[0074] The measurement results include at least one of the following: CQI, precoding matrix indicator (PMI), and rank indication (RI).

[0075] In some embodiments, before the base station feeds back the interference measurement information to the perception function management network element, the base station may also determine whether to report the potential interference and feed back the interference measurement information based on some communication indicators calculated by the base station itself. For example, the bit error rate, bit error rate, etc. on a certain link, or the overall traffic monitored over a period of time. If these indicators are abnormal, the base station may also report the potential interference and feed back the interference measurement information.

[0076] In some embodiments, before the core network element feeds back interference measurement information to the perception function management element, the core network element identifies the interference situation and determines that interference exists, and measures the interference to obtain the interference measurement information.

[0077] Among them, the core network runs and carries some non-communication functions, such as positioning. For example, the location management function (LMF) in the core network identifies that the positioning result of a certain UE has a very large deviation in a short period of time, which exceeds the UE moving speed in the usual sense, or that there are multiple UE positioning results in a certain positioning area with large deviations. It can also mark the abnormality and report it to the perception function management network element. Similarly, the network element of the core network traffic statistics can also detect regional traffic anomalies and report them to the perception function management network element.

[0078] It is understandable that 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 / positioning indicators to determine whether there is suspected interference or unauthorized frequency band use (pseudo base station, etc.) in a specific cell.

[0079] In some embodiments, the sensing reception configuration sent to at least one first network node also includes: a reporting method for monitoring results of network functions such as spectrum sensing or communication. Among them, the reporting method includes at least one of the following: reporting once after configuration (for example, it is configured to do spectrum sensing once, and the result is reported after completion), periodic, event-triggered, and pre-configured to start or end with MAC or physical layer signaling (such as MAC CE, DCI). Event-triggered reporting can additionally configure interference type, power threshold, interference mode, direction to be detected, etc. If the spectrum usage perceived by the network node conforms to the configured type, or its power is greater than the power threshold, or satisfies any configured condition or combination of conditions, the result is reported.

[0080] In some embodiments, before sending the sensing reception configuration to the first network node, it also includes: obtaining the location information of the node in the network from the location management network element. Then, the location information of the node in the network configures the first network node, so that it can sense near the potential interference source to better capture the interference source and interference characteristics, thereby better covering the entire physical cell.

[0081] For example, LMF can send the existing node locations together with the node identity information to SF. LMF can also initiate a new positioning task (positioning session) to determine the locations of some of the nodes and inform SF of the positioning results.

[0082] It is understandable that, unlike the traditional SF configuration, when the SF configuration network node is used as a sensing receiving node in the traditional sense, the reference signal to be received needs to be configured. Traditionally, the reference signal is completely known to the receiving node. However, at this time, since the signal to be received is sent by an external interference source, this signal is unknown to the network. Therefore, when configuring, the configuration information will be different from the configuration in the general sense. The way to achieve this configuration includes at least one of the following:

[0083] The assistance data for perception only indicates the frequency range that the receiving node needs to perceive (such as N subcarriers with a specific subcarrier spacing, or does not indicate the subcarrier spacing, only gives the frequency range) and the time period that needs to be perceived.

[0084] In addition to the perception waveforms and sequences (such as Gold sequence and ZC sequence) used by the perception network, some interference waveforms and sequences (such as constant power sine waves) used by common interference sources are additionally defined. These defined waveforms and sequences will not be used by the perception transmitting nodes in the network, but are only used as reserved sequences for interference identification. These waveforms and sequences can be designed to have a low correlation with the waveforms and sequences used by the perception reference signals used by the perception network. With these pre-defined waveforms and sequences, SF can configure the perception receiving nodes to receive according to a reserved sequence and calculate the interference power.

[0085] SF can configure a sensing receiving node to use a sensing reference signal that the sensing network will use as a useful signal, but does not actually configure the transmitter. For example, on certain specific time-frequency resources, SF configures certain sensing receiving nodes to receive a pre-configured sensing reference signal, but does not configure any transmitting node 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 receiving node receives and calculates SINR normally. Here, since the reference signal has zero power, the signal power is 0, and the interference and noise power can be known.

[0086] For example, Figure 3 As shown, the process of SF configuration interference measurement and perception includes the following steps:

[0087] Step 1: SF sends a sensing node location request to LMF, for example, Sensing Nodes Location Request (Optional);

[0088] Step 2: UE and LMF create a positioning session, execute the positioning process, determine the location information of the sensing node, and send a Positioning Session (Optional, depending on 1);

[0089] Step 3: LMF sends the location information of the sensing nodes to SF, such as Sensing Nodes location update (Optional, depending on 1);

[0090] Step 4a, Step 4b, SF sends a spectrum sensing request to UE and / or RAN respectively; for example, Spectrum Sensing Initiation (sent to TRPs and / or UEs);

[0091] Step 5: UE and / or RAN performs spectrum sensing and localization operations, such as spectrum sensing and localization.

[0092] In step 6a and step 6b, the UE and / or RAN respectively send a spectrum sensing report to the SF; for example, Spectrum Sensing Termination (sent to TRPs and / or UEs) (Optional, valid for periodical sensing).

[0093] Among them, step 5, step 6a, and step 6b can be executed periodically until step 7a and step 7b occur.

[0094] Step 7a, Step 7b, SF sends a spectrum sensing termination indication (optional, periodic sensing is valid), such as Spectrum Sensing Termination, to UE and / or RAN respectively.

[0095] 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. Among them, the external node may entrust the network to detect, identify, and locate interference sources in a specific frequency band. For example, a terrestrial digital broadcasting service provider finds that customers report that digital TV signal reception in a certain area is poor and suspects interference. Someone may be using the frequency band authorized for terrestrial digital broadcasting to illegally send signals. Traditional methods include sending spectrum detection vehicles to the area for detection, and the terrestrial cellular network has many sites and terminals and can basically cover most areas in the city, so the terrestrial cellular network can undertake external commissions.

[0096] For example, Figure 4 As shown, in response to receiving an interference measurement request from an external node, the SF configures the interference measurement and sensing process.

[0097] Step 0: SF receives a spectrum sensing request sent by an external node (i.e., AF / NEF / N3IWF in the figure), for example, Spectrum Sensing Request;

[0098] Step 1: SF sends a sensing node location request to LMF, for example, Sensing Nodes Location Request (Optional);

[0099] Step 2: UE and LMF create a positioning session, execute the positioning process, determine the location information of the sensing node, and send a Positioning Session (Optional, depending on 1);

[0100] Step 3: LMF sends the location information of the sensing nodes to SF, such as Sensing Nodes location update (Optional, depending on 1);

[0101] Step 4a, Step 4b, SF sends a spectrum sensing request to UE and / or RAN respectively; for example, Spectrum Sensing Initiation (sent to TRPs and / or UEs);

[0102] Step 5: UE and / or RAN performs spectrum sensing and localization operations, such as spectrum sensing and localization.

[0103] Step 6a, Step 6b, UE and / or RAN respectively send spectrum sensing reports to SF; for example, Spectrum Sensing Report(s);

[0104] Step 7: The SF sends a spectrum sensing report, for example, Spectrum Sensing Result, to the AF / NEF / N3IWF.

[0105] Step 8: SF receives the spectrum sensing termination indication sent by AF / NEF / N3IWF; for example, Spectrum SensingComplete (Optional, valid for periodical sensing);

[0106] Step 9a, Step 9b, SF sends a spectrum sensing termination indication to UE and / or RAN respectively (optional, valid for periodic sensing), for example, Spectrum Sensing Termination (sent to TRPs and / or UEs) (Optional, valid for periodical sensing).

[0107] Among them, step 5, step 6a, step 6b, and step 7 can be executed periodically until step 8, step 9a, and step 9b occur.

[0108] The above is that after SF determines that there is a suspected interference source in the network, there may be a need for positioning. Continuing with the above process, SF will collect measurement results reported from several nodes, and SF will make some preliminary judgments, such as no interference, or a high probability of suspected interference. The purpose of the above steps is to determine whether there is interference and to obtain some information related to the interference signal, such as power, direction, mode, etc. Next, SF will try to locate the interference source and obtain more detailed information.

[0109] It can be understood that in order to locate the interference source, SF can configure several nodes in the network (based on the geographical location and capabilities of these nodes) to perform the perception task of A sending and B receiving without a clear perception signal. Among them, A is a possible interference source node, and B is the first network node configured by SF. SF will send a perception reception configuration to B, for example, send the preliminary knowledge of the interference signal to B, and configure the configuration parameters of the corresponding perception reference signal for B to measure.

[0110] In some embodiments, the sensing reception configuration is used to configure the first network node to receive an interference signal.

[0111] In some embodiments, the sensing reception configuration is used to configure the first network node to receive the interference signal, including any one of the following:

[0112] The sensing reception configuration does not include configuration parameters of the sensing reference signal;

[0113] The sensing reception configuration includes configuration parameters of a sensing reference signal for interference measurement;

[0114] The sensing reception configuration includes configuration parameters of a sensing reference signal with a power of 0.

[0115] In some embodiments, the configuration parameters of the sensing reference signal include at least one of the following: a measurement time slot, an observation window, a process window, a sensing reference signal sequence, a waveform, and a duty cycle.

[0116] In some embodiments, when the sensing reception configuration does not include configuration parameters of the sensing reference signal, the first network node determines the interference measurement information based on the default configuration.

[0117] In some embodiments, when the sensing reception configuration does not include configuration parameters of the sensing reference signal, the sensing reception configuration needs to include indication information, where the indication information is used to indicate the interference source positioning method adopted, such as positioning the interference source through power measurement and arrival angle estimation.

[0118] In some embodiments, the sensing reception configuration includes configuration parameters of a sensing reference signal with a power of 0. The sensing reference signal position with a power of 0 is the time-frequency position to be measured, that is, it is used to indicate the position where the interference signal may appear on the time-frequency resource. At this time, the first network node needs to measure the channel by itself, and perform operations such as arrival angle estimation, power measurement and ranging according to the results of the channel measurement, and then determine the location of the interference source.

[0119] For example, to achieve the purpose of positioning, SF will configure several nodes in the network (based on the geographical location and capabilities of these nodes) to perform the sensing task of A sending and B receiving without clear sensing signals. (A sending and B receiving mode is bistatic sensing mode, refer to the above description) SF will send the preliminary knowledge of the interference signal to the nodes that need to sense, and configure the corresponding measurement time slot / observation window / process window for the node to measure.

[0120] In the traditional A-transmits-B-receive mode, the receiving node B should get all the information about the reference signal sent by A in advance (such as when it was sent, the frequency domain position of the transmission, the sequence, etc.). However, here, it is likely that there is no such detailed information about the signal (because the signal here is sent by the interference source, the interference source is not under network control, and the signal it sends cannot be completely known by the network). For this "A-transmits-B-receives perception without clear reference signals", there are several feasible configuration methods:

[0121] A default configuration is defined in the standard protocol, such as a periodic pulse wave or a continuous sine wave, to support simple energy detection and AoA estimation. If there is no explicit configuration for sensing reference signals, the default configuration is used until the default configuration is changed.

[0122] In the above steps, SF may obtain a simple pattern about the interference waveform (such as periodicity in time, etc.), which is easier to configure (but the pattern obtained may not be one of the waveforms and sequences defined in the standard protocol, so it is necessary to reserve some patterns for this specific non-cooperative sensing requirement when defining the sensing reference signal). Here, it is necessary to define some interference sensing reference signals dedicated to interference sensing. The specific form is: pre-define several sensing reference signal sequences, waveforms, and duty cycles in the standard protocol, but mark them as "dedicated to measuring external interference", such as periodic pulse waves, or continuous sine waves.

[0123] No reference signal is configured for B, and it is stated in the configuration sent down that power measurement and arrival angle estimation are performed directly.

[0124] A reference signal with 0 power is configured for the receiving node B. The reference signal with 0 power indicates the possible position of the signal on the time-frequency resource, that is, the time-frequency position that needs to be measured. At this time, the receiving node B needs to measure the channel by itself and perform operations such as arrival angle estimation, power measurement and ranging based on the results of the channel measurement.

[0125] It is understandable that if the interference source itself is a moving target (such as an illegal drone), the rough information about the location and moving speed of the interference source obtained in the above process can assist SF in accurately locating the target. Here, SF can configure multiple nodes (the first network node and the second network node) to perform normal perception tasks, and only needs to use non-interference frequency bands.

[0126] For example, SF can configure the nodes in the network to perform target positioning and tracking tasks based on the interference frequency band, location, direction, moving speed and other information about the potential interference source obtained from the previous determination of the suspected interference source in the network.

[0127] In some embodiments, a sensing reception configuration is sent to the first network node, where the sensing reception configuration includes at least one of the following: a recommended precoding method, a recommended direction of a received signal, and interference measurement information.

[0128] The interference measurement information includes at least one of the following: a possible RCS size (radar cross-section size) of the interference source, a possible speed of the interference source, a possible direction of the interference source, and a possible position of the interference source.

[0129] The interference measurement information may also include part or all of the content in the interference measurement information introduced above.

[0130] In some embodiments, a perception transmission configuration is sent to the second network node, and the perception transmission configuration includes at least one of the following: a frequency band to avoid use, a waveform to avoid use, a sequence to avoid use, a recommended transmission power, a recommended precoding method, and a recommended direction of sending the signal.

[0131] The frequency bands to be avoided are those that may be interfered with. The waveforms to be avoided are those that may be confused with the signals sent by the interference source. The sequences to be avoided are those that may be confused with the signals sent by the interference source. The recommended transmit power is the power that can obtain a better signal-to-noise ratio and performance in the presence of interference.

[0132] In this way, SF can configure the nodes in the network to perform target positioning and tracking tasks based on the interference frequency band, location, direction, moving speed and other information about the potential interference source previously obtained, and at the same time send the perception receiving configuration to the first network node and the perception sending configuration to the second network node, so as to better locate the interference source and improve accuracy.

[0133] S102. The perception function management network element receives interference measurement information determined based on the perception reception configuration and fed back by the first network node.

[0134] In some embodiments, the interference measurement information includes at least one of the following: the waveform of the interference signal, the sequence of the interference signal, the interference intensity, the identification of the suspected interference source node, the position of the interfered node, the direction of the received interference, the suspected interference frequency band, the interfered signal resource index, the interference mode, the position of the interference source, the radar cross-sectional area of ​​the interference source, the object type of the interference source, the speed of the interference source, the height of the interference source, the type of the interfered reference signal, the port of the interfered reference signal, the interfered beam pointing vector, the precoding matrix of the beam, the current channel condition directly measured by the receiving end, the channel impulse response, the power delay spectrum, the delay distribution, the channel matrix related information, the channel information measured on the strongest first preset number of paths, the channel information measured on the weakest second preset number of paths, the receiving antenna reference point index, the interference related time information, the interference related frequency band, the interference related bandwidth, the interference related waveform, the interference related sequence, the interference related power, and the direction of the interference source.

[0135] S103. The perception function management network element determines whether an interference source exists based on the interference measurement information and locates the interference source.

[0136] Among them, after determining that there is a suspected interference source in the network, there may be a need for positioning. Continuing with the above process, SF will collect measurement results (including interference measurement information) reported from several nodes, and SF will make some preliminary judgments, such as no interference, or a high probability of suspected interference. The purpose of the above steps is to determine whether there is interference and to obtain some information related to the interference signal, such as power, direction, mode, etc. Next, SF will try to locate the interference source and obtain more detailed information.

[0137] In some embodiments, the interference source may be located not only based on the interference measurement information, but also based on the information fed back by each network node in the above embodiments.

[0138] In this way, when the perception function management network element configures the network node to receive the interference measurement information determined based on the perception reception configuration fed back by the first network node and then calculates the interference source location, it can also refer to all the above-mentioned received interference-related information to obtain a more accurate result.

[0139] In some embodiments, locating the interference source based on the interference measurement information includes: locating the interference source based on a positioning method and the interference measurement information.

[0140] Among them, the positioning method includes at least one of the following: a positioning method based on arrival angle, a positioning method based on arrival time difference, a positioning method based on arrival time, 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.

[0141] In some embodiments, when locating the interference source based on the positioning method of the channel environment fingerprint and the interference measurement information, a pre-trained data set may also be referred to.

[0142] In some embodiments, locating the interference source based on the positioning method and the interference measurement information includes:

[0143] When the positioning method is a positioning method based on arrival time or arrival time difference, acquiring waveform information and time information of signals sampled by the plurality of first network nodes;

[0144] Determine, based on waveform information and time information of signals sampled by the plurality of first network nodes, a signal transmission delay or a signal transmission delay difference between the interference source and each first network node;

[0145] 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.

[0146] For example, Figure 5 As shown in the figure, different network nodes select a longer or shorter section of the received signal, and SF finds the similar part (the common part in the rectangular box in the figure above) and calculates the time difference of the signal reaching the three network nodes. For example, the time difference between reaching network node 1 and network node 3 is T3-T1. Based on the time difference of the signal reaching the three network nodes and the speed of light, the location of the interference source can be obtained.

[0147] In some embodiments, first information is sent to the third network node, where the first information is used to ensure that transmission resources occupied by a signal sent by the third network node do not overlap with transmission resources used by the first network node for interference measurement.

[0148] For example, since SF needs to configure several sensing nodes to monitor suspected interference signals, if there are other nodes in the network that are conducting normal business and are using overlapping frequency bands, it will increase the difficulty of monitoring (which is equivalent to reducing the signal-to-noise ratio of the monitoring receiving end). To avoid or alleviate this phenomenon, SF can configure nodes in the network (base stations, terminals) to avoid using a certain frequency band and give a time period for avoidance, or configure other SFs or network management modules. SF can specifically suggest the location of time-frequency resources that need to be muted, or suggest changing the comb structure of certain signal transmissions, such as changing comb1 to comb2.

[0149] In some embodiments, the sensing function management network element is further configured to perform at least one of the following:

[0150] Instruct, configure or suggest the fourth network node to shut down or suspend the sensing task, and the duration or periodicity of the shut down or suspension;

[0151] Instructing, configuring or suggesting the fourth network node to shut down or suspend service information, and the duration or periodicity of the shut down or suspension;

[0152] indicating, configuring or suggesting frequency band usage rules for the fourth network node, and the duration or periodicity of the indication, configuration or suggestion;

[0153] sending interference measurement information to a fourth network node;

[0154] Sending interference measurement information to external nodes;

[0155] Send interference measurement information to another awareness function management network element.

[0156] Among them, the fourth network node can be a perception transmitting node, a perception 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.

[0157] In this way, on the one hand, SF can provide feedback on the frequency bands and cells affected by interference and issue spectrum usage strategies; on the other hand, SF can configure the perception nodes by itself and provide interference information to the perception nodes so that the perception nodes can adjust parameters such as thresholds to continue normal business in the presence of interference.

[0158] In some embodiments, after determining that an interference source exists, the fourth network node is instructed to suspend the sensing task to save power. At the same time, some nodes can be configured to perform spectrum sensing periodically, and restart the sensing service (configuration information includes interference measurement information) after the interference source disappears.

[0159] In some embodiments, after determining that an interference source exists, the perception function management network element may configure the fourth network node (such as a base station, a terminal, etc.) with service information that is recommended to be shut down.

[0160] In some embodiments, after determining that an interference source exists, if the interference source is moving toward another sensing area, the interference existence and interference measurement information are sent to another sensing function management network element, so that the other sensing function management network element can timely understand the interference situation for subsequent operations.

[0161] In some embodiments, after determining that an interference source exists, a frequency band usage rule is configured for the fourth network node, including: which frequency band to avoid, and the validity period of the configuration (periodic avoidance, avoidance until a period of time has passed, 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 rule.

[0162] Among them, the frequency band usage rules and / or the instruction information for suspending the execution of the perception task and the service information recommended to be closed can be sent by the SF to the network management module or other SF, and then sent to the fourth network node through the network management module or other SF.

[0163] In some embodiments, after determining that the interference source exists but the service is continued, the SF can send interference measurement information (including accurate information such as the waveform, bandwidth, frequency band, sequence, etc. of the interference signal) to the fourth network node to assist the fourth network node in direct interference elimination. In this way, the fourth network node has interference measurement information, and the fourth network node can still perform some perception or communication tasks in the presence of interference. For example, dynamically change the detection threshold to continue to support target detection, or reduce the modulation order to continue communication. In addition to the interference measurement information, the configuration of the fourth network node is newly added: recommended perception task-related detection thresholds, recommended data modulation methods and orders. After performing such configuration, it is necessary to dynamically adjust the configured thresholds according to the real-time monitoring situation, and reset the configuration after the interference disappears. During configuration, you can also configure the classification of interference conditions, such as three gears of "high, medium and low", or several gears of SINR.

[0164] It is understandable that after determining that an interference source exists but continuing the business, the SF can enable different sensing transceiver nodes in the sensing task, or configure more nodes to participate in the sensing task according to the interference situation, so as to achieve the required accuracy.

[0165] In some embodiments, the SF may send interference measurement information to an external node. For example, the SF reports the interference measurement information to the external node through a direct interface or other network elements (such as an application function (AF), a network exposure function (NEF)). The external node may be a spectrum management bureau, a regulatory agency, a perception service user, a communication service user, etc.

[0166] Based on this, by actively sending the perception reception configuration and receiving the interference measurement information from the first network node, the interference status in the current environment can be obtained in real time, and the interference source can be accurately located. This helps to solve the interference problem in the integrated communication perception scenario and improves the intelligent management and maintenance efficiency of the network.

[0167] The above mainly introduces the scheme of the embodiment of the present disclosure from the perspective of the method. The following also shows an interference source locating device for executing the interference source locating method in any of the above embodiments and possible implementations thereof. It can be understood that in order to implement the interference source locating method, the interference source locating device includes a hardware structure and / or software module corresponding to each function; those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiment of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0168] The disclosed embodiment can divide the interference source locating device into functional modules according to the above method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the disclosed embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0169] Figure 6 The interference source positioning device 600 provided in the embodiment of the present disclosure is applied to a first node. The interference source positioning device 600 includes: a communication module 601 and a processing module 602 .

[0170] The communication module 601 is used to send a sensing reception configuration to a first network node;

[0171] The communication module 601 is further configured to receive interference measurement information determined based on the sensing reception configuration fed back by the first network node;

[0172] The processing module 602 is used to determine whether an interference source exists based on the interference measurement information, and locate the interference source.

[0173] In some embodiments, the interference measurement information includes at least one of the following: the waveform of the interference signal, the sequence of the interference signal, the interference intensity, the identification of the suspected interference source node, the position of the interfered node, the direction of the received interference, the suspected interference frequency band, the interfered signal resource index, the interference mode, the position of the interference source, the radar cross-sectional area of ​​the interference source, the object type of the interference source, the speed of the interference source, the height of the interference source, the type of the interfered reference signal, the port of the interfered reference signal, the interfered beam pointing vector, the precoding matrix of the beam, the current channel condition directly measured by the receiving end, the channel impulse response, the power delay spectrum, the delay distribution, the channel matrix related information, the channel information measured on the strongest first preset number of paths, the channel information measured on the weakest second preset number of paths, the receiving antenna reference point index, the interference related time information, the interference related frequency band, the interference related bandwidth, the interference related waveform, the interference related sequence, the interference related power, and the direction of the interference source.

[0174] In some embodiments, the sensing reception configuration is used to configure the first network node to receive an interference signal.

[0175] In some embodiments, the sensing reception configuration is used to configure the first network node to receive the interference signal, including any one of the following:

[0176] The sensing reception configuration does not include configuration parameters of the sensing reference signal;

[0177] The sensing reception configuration includes configuration parameters of a sensing reference signal for interference measurement;

[0178] The sensing reception configuration includes configuration parameters of a sensing reference signal with a power of 0.

[0179] In some embodiments, the sensing reception configuration includes at least one of the following:

[0180] Recommended precoding method, recommended direction of received signal, and interference measurement information.

[0181] In some embodiments, the communication module 601 is used to send a perception sending configuration to the second network node, and the perception sending configuration includes at least one of the following: a frequency band to avoid use, a waveform to avoid use, a sequence to avoid use, a recommended transmission power, a recommended precoding method, and a recommended direction of sending the signal.

[0182] In some embodiments, the processing module 602 is specifically configured to locate the interference source based on the positioning method and the interference measurement information;

[0183] Among them, the positioning method includes at least one of the following: a positioning method based on arrival angle, a positioning method based on arrival time difference, a positioning method based on arrival time, 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.

[0184] In some embodiments, the processing module 602 is specifically configured to:

[0185] When the positioning method is a positioning method based on arrival time or arrival time difference, acquiring waveform information and time information of signals sampled by the plurality of first network nodes;

[0186] Determine, based on waveform information and time information of signals sampled by the plurality of first network nodes, a signal transmission delay or a signal transmission delay difference between the interference source and each first network node;

[0187] 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.

[0188] In some embodiments, the communication module 601 is specifically used to:

[0189] In response to determining that there is a suspected interference source in the network, sending a sensing reception configuration to the first network node; or,

[0190] In response to receiving an interference measurement request from an external node, sending a sensing reception configuration to the first network node.

[0191] In some embodiments, the processing module 602 is specifically configured to:

[0192] Determine whether there is a suspected interference source in the network based on at least one of the following:

[0193] Interference measurement information fed back by the base station;

[0194] Interference measurement information fed back by the terminal;

[0195] Interference measurement information fed back by devices connected to the network;

[0196] Interference measurement information fed back by core network elements.

[0197] In some embodiments, the communication module 601 is specifically used to:

[0198] First information is sent to the third network node, where the first information is used to ensure that transmission resources occupied by a signal sent by the third network node do not overlap with transmission resources used by the first network node for interference measurement.

[0199] In some embodiments, the processing module 602 is further configured to:

[0200] Instruct, configure or suggest the fourth network node to shut down or suspend the sensing task, and the duration or periodicity of the shut down or suspension;

[0201] Instructing, configuring or suggesting the fourth network node to shut down or suspend service information, and the duration or periodicity of the shut down or suspension;

[0202] indicating, configuring or suggesting frequency band usage rules for the fourth network node, and the duration or periodicity of the indication, configuration or suggestion;

[0203] sending interference measurement information to a fourth network node;

[0204] Sending interference measurement information to external nodes;

[0205] Send interference measurement information to another awareness function management network element.

[0206] In some embodiments, the communication module 601 is further used to: query and receive capability information of the first network node, where the capability information includes at least one of the following: an interference measurement mode and an interference reporting mode.

[0207] In some embodiments, the communication module 601 is further used to: obtain location information of nodes in the network from a location management network element.

[0208] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiment of the present disclosure also provides a possible structure of a communication device, which is used to execute the interference source positioning method provided by the embodiment of the present disclosure. Figure 7 As shown, the communication device 700 includes: a communication interface 703, a processor 702 and a bus 704. Optionally, the communication device may further include a memory 701.

[0209] The processor 702 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 702 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0210] The communication interface 703 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0211] The memory 701 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0212] As a possible implementation, the memory 701 may exist independently of the processor 702, and the memory 701 may be connected to the processor 702 via a bus 704 for storing instructions or program codes. When the processor 702 calls and executes the instructions or program codes stored in the memory 701, the interference source location method provided in the embodiment of the present disclosure can be implemented.

[0213] In another possible implementation, the memory 701 may also be integrated with the processor 702 .

[0214] The bus 704 may be an extended industry standard architecture (EISA) bus, etc. The bus 704 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0215] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes the interference source locating method as described in any of the above embodiments.

[0216] In an exemplary embodiment, the computer may be the interference source locating device described above, and the present disclosure does not limit the specific form of the computer.

[0217] In some examples, the computer-readable storage media described above may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or tapes, etc.), 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 (EPROM), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0218] An embodiment of the present disclosure provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the interference source locating method described in any of the above embodiments.

[0219] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for locating an interference source, characterized in that: Applied to the perception function management network element, the method includes: Sending a sensing reception configuration to the first network node; receiving interference measurement information determined based on the sensing reception configuration and fed back by the first network node; Based on the interference measurement information, it is determined whether an interference source exists, and the interference source is located.

2. The method according to claim 1, characterized in that The interference measurement information includes at least one of the following: the waveform of the interference signal, the sequence of the interference signal, the interference intensity, the identification of the suspected interference source node, the position of the interfered node, the direction of the received interference, the suspected interference frequency band, the interfered signal resource index, the interference mode, the position of the interference source, the radar cross-sectional area of ​​the interference source, the object type of the interference source, the speed of the interference source, the height of the interference source, the type of the interfered reference signal, the port of the interfered reference signal, the interfered beam pointing vector, the precoding matrix of the beam, the current channel condition directly measured by the receiving end, the channel impulse response, the power delay spectrum, the delay distribution, the channel matrix related information, the channel information measured on the strongest first preset number of paths, the channel information measured on the weakest second preset number of paths, the receiving antenna reference point index, the interference related time information, the interference related frequency band, the interference related bandwidth, the interference related waveform, the interference related sequence, the interference related power, and the direction of the interference source.

3. The method according to claim 1, characterized in that The sensing reception configuration is used to configure the first network node to receive an interference signal.

4. The method according to claim 3, characterized in that The sensing reception configuration is used to configure the first network node to receive an interference signal, including any one of the following: The sensing reception configuration does not include configuration parameters of a sensing reference signal; The sensing reception configuration includes configuration parameters of a sensing reference signal for interference measurement; The sensing reception configuration includes configuration parameters of a sensing reference signal with a power of 0.

5. The method according to claim 1, characterized in that: The sensing reception 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, characterized in that The method further comprises: A perception sending configuration is sent to the second network node, where the perception sending configuration includes at least one of the following: a frequency band to avoid use, a waveform to avoid use, a sequence to avoid use, a recommended transmission power, a recommended precoding method, and a recommended direction of sending a signal.

7. The method according to claim 1, characterized in that The determining whether an interference source exists based on the interference measurement information and locating the interference source includes: Based on the positioning method and the interference measurement information, positioning the interference source; Among them, the positioning method includes at least one of the following: a positioning method based on arrival angle, a positioning method based on arrival time difference, a positioning method based on arrival time, 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, characterized in that The determining whether an interference source exists based on the positioning method and the interference measurement information, and positioning the interference source, includes: In the case where the positioning method is a positioning method based on arrival time or arrival time difference, acquiring waveform information and time information of signals sampled by multiple first network nodes; Determine, based on waveform information and time information of signals sampled by the plurality of first network nodes, a signal transmission delay or a signal transmission delay difference between the interference source and each first network node; The location of the interference source is determined based on a signal transmission delay or a signal transmission delay difference between the interference source and each first network node.

9. The method according to claim 1, characterized in that: The sending the sensing reception configuration to the first network node includes: In response to determining that there is a suspected interference source 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.

10. The method according to claim 9, characterized in that The determining that there is a suspected interference source in the network includes: Determine whether there is a suspected interference source in the network 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 to the network; Interference measurement information fed back by core network elements.

11. The method according to claim 1, characterized in that The method further comprises: First information is sent to a third network node, where the first information is used to ensure that transmission resources occupied by a signal sent by the third network node do not overlap with transmission resources used by the first network node for interference measurement.

12. The method according to claim 1, characterized in that The method further comprises at least one of the following: Instruct, configure or suggest the fourth network node to shut down or suspend the sensing task, and the duration or periodicity of the shut down or suspension; Instruct, configure or suggest service information to be closed or suspended by the fourth network node, as well as the duration or periodicity of the closing or suspension; Instruct, configure or suggest a frequency band usage rule for the fourth network node, and a time length or periodicity of the instruction, configuration or suggestion; sending interference measurement information to the fourth network node; Sending the interference measurement information to an external node; The interference measurement information is sent to another awareness function management network element.

13. The method according to claim 1, characterized in that The method further comprises: Query and receive capability information of the first network node, where the capability information includes at least one of the following: an interference measurement mode and an interference reporting mode.

14. The method according to claim 1, characterized in that 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, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 14 is performed.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 14.

17. A computer program product, characterized in that When the computer program product is executed, the method according to any one of claims 1 to 14 is implemented.

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