Perception processing method and device, terminal and network side equipment

Abstract

The invention discloses a perception processing method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the perception processing method comprises the steps that first equipment sends first indication information to second equipment, the first indication information is used for indicating multipath related information, and the first indication information is used for indicating multipath related information; the multipath related information is used for eliminating sensing non-ideal factors of the first measurement, and the first equipment is a first node, a sensing function network element or a second node; wherein the sensing non-ideal factor comprises at least one of local oscillation frequency deviation, sampling clock deviation and random phase between the first node and the second node; wherein under the condition that the first equipment is the first node or the sensing function network element, the second equipment is the second node, and under the condition that the first equipment is the second node, the second equipment is the first node or the sensing function network element; the first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a sensing processing method, apparatus, terminal, and network-side device. Background Art

[0002] With the development of communication technologies, in a communication system, passive object measurement and sensing can be performed based on sensing signals or integrated communication and sensing signals. Currently, for sensing from device A to device B, there are non-ideal sensing factors such as sampling clock offset, local oscillator frequency offset, and random phase. An effective solution is to use a passive reference target, backscatter device, or intelligent reflecting surface, etc., to construct a reference path to eliminate the influence of non-ideal sensing factors. Currently, the default reference path is usually used to eliminate the influence of non-ideal sensing factors. Since the default sensing reference path cannot adapt to complex wireless network environments when eliminating the influence of non-ideal factors, the elimination effect of non-ideal sensing factors is poor, the sensing performance deteriorates, and even sensing cannot be performed. Summary of the Invention

[0003] Embodiments of this application provide a sensing processing method, apparatus, terminal, and network-side device, which can solve the problem of eliminating the influence of non-ideal sensing factors.

[0004] In a first aspect, a sensing processing method is provided, including:

[0005] A first device sends first indication information to a second device, where the first indication information is used to indicate relevant information of multipaths, and the relevant information of the multipaths is used to eliminate non-ideal sensing factors of a first measurement. The first device is a first node, a sensing function network element, or a second node;

[0006] The non-ideal sensing factors include at least one of local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0007] Wherein, when the first device is a first node or a sensing function network element, the second device is a second node; when the first device is a second node, the second device is a first node or a sensing function network element. The first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0008] In a second aspect, a sensing processing method is provided, including:

[0009] The second device receives the first indication information from the first device, where the first indication information is used to indicate relevant information of multipaths, and the relevant information of the multipaths is used to eliminate non-ideal sensing factors of a first measurement. The first device is a first node, a sensing function network element, or a second node;

[0010] Among them, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0011] Among them, when the second device is the second node, the first device is the first node or the sensing function network element; when the second device is the first node or the sensing function network element, the first device is the second node; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0012] In a third aspect, a sensing processing device is provided, including:

[0013] A first sending module, configured to send first indication information from a first device to a second device, where the first indication information is used to indicate information related to multipath, and the information related to multipath is used to eliminate the perceived non-ideal factors of the first measurement, and the first device is the first node, the sensing function network element, or the second node;

[0014] Among them, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0015] Among them, when the first device is the first node or the sensing function network element, the second device is the second node; when the first device is the second node, the second device is the first node or the sensing function network element; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0016] In a fourth aspect, a sensing processing device is provided, characterized by including:

[0017] A second receiving module, configured to receive first indication information from a first device by a second device, where the first indication information is used to indicate information related to multipath, and the information related to multipath is used to eliminate the perceived non-ideal factors of the first measurement, and the first device is the first node, the sensing function network element, or the second node;

[0018] Among them, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0019] Wherein, when the second device is a second node, the first device is a first node or a sensing function network element; when the second device is a first node or a sensing function network element, the first device is a second node; the first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0020] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, it implements the steps of the method described in the first aspect, or implements the steps of the method described in the second aspect.

[0021] In a sixth aspect, a terminal is provided, including a processor and a communication interface. Among them,

[0022] When the terminal is a first device, the communication interface is used for the first device to send first indication information to a second device. The first indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate sensing non-ideal factors of the first measurement. The first device is a first node, a sensing function network element or a second node; wherein, the sensing non-ideal factors include at least one of local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node; when the first device is a first node or a sensing function network element, the second device is a second node; when the first device is a second node, the second device is a first node or a sensing function network element; the first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement;

[0023] When the terminal is a second device, the communication interface is used for the second device to receive first indication information from the first device. The first indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate sensing non-ideal factors of the first measurement. The first device is a first node, a sensing function network element or a second node; wherein, the sensing non-ideal factors include at least one of local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node; when the second device is a second node, the first device is a first node or a sensing function network element; when the second device is a first node or a sensing function network element, the first device is a second node; the first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0024] In a seventh aspect, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the method described in the first aspect is implemented, or the steps of the method described in the second aspect are implemented.

[0025] In an eighth aspect, a network-side device is provided, including a processor and a communication interface. Among them,

[0026] When the network-side device is the first device, the communication interface is used for the first device to send first indication information to the second device. The first indication information is used to indicate relevant information of multipath. The relevant information of multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is the first node, a sensing function network element or the second node; among them, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node; when the first device is the first node or a sensing function network element, the second device is the second node, and when the first device is the second node, the second device is the first node or a sensing function network element; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement;

[0027] When the network-side device is the second device, the communication interface enables the second device to receive the first indication information from the first device. The first indication information is used to indicate relevant information of multipath. The relevant information of multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is the first node, a sensing function network element or the second node; among them, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node; when the second device is the second node, the first device is the first node or a sensing function network element, and when the second device is the first node or a sensing function network element, the first device is the second node; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0028] In a ninth aspect, a readable storage medium is provided. The readable storage medium stores a program or instructions. When the program or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0029] In a tenth aspect, a wireless communication system is provided, including: a first device and a second device. The first device can be used to execute the steps of the method described in the first aspect, and the second device can be used to execute the steps of the method described in the second aspect.

[0030] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the method described in the first aspect or the method described in the second aspect.

[0031] In the twelfth aspect, a computer program / program product is provided, which includes computer instructions. The computer program / program product is executed by at least one processor to implement the method described in the first aspect or the method described in the second aspect.

[0032] In an embodiment of the present application, a first device sends first indication information to a second device. The first indication information is used to indicate relevant information of multipaths, and the relevant information of the multipaths is used to eliminate perception non-ideal factors of a first measurement. The first device is a first node, a perception function network element or a second node. Among them, the perception non-ideal factors include at least one of local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node. Among them, when the first device is the first node or the perception function network element, the second device is the second node; when the first device is the second node, the second device is the first node or the perception function network element. The first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement. In this way, by sending the first indication information by the first device, the reference path for eliminating the perception non-ideal factors of the first measurement can be flexibly determined according to the first indication information, so the effect of eliminating the perception non-ideal factors is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

[0034] Figure 2 is one of the flowcharts of a perception processing method provided by the present application;

[0035] Figure 3 is a multipath schematic diagram of a channel response in a first dimension in a perception processing method provided by the present application;

[0036] Figure 4 is the second flowchart of a perception processing method provided by the present application;

[0037] Figure 5 is the third flowchart of a perception processing method provided by the present application;

[0038] Figure 6 is the fourth flowchart of a perception processing method provided by the present application;

[0039] Figure 7 It is the fifth flowchart of a perception processing method provided by this application;

[0040] Figure 8 It is the sixth flowchart of a perception processing method provided by this application;

[0041] Figure 9 It is a schematic structural diagram of a perception processing device provided by this application;

[0042] Figure 10 It is a schematic structural diagram of another perception processing device provided by this application;

[0043] Figure 11 It is a schematic structural diagram of a communication device provided by this application;

[0044] Figure 12 It is a schematic structural diagram of a terminal provided by this application;

[0045] Figure 13 It is a schematic structural diagram of a network - side device provided by this application;

[0046] Figure 14 It is a schematic structural diagram of another network - side device provided by this application. Detailed implementation manners

[0047] The terms "first", "second", etc. in this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are usually of the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0048] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0049] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0050] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station may be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0051] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0052] For the convenience of understanding, some content related to the embodiments of this application is described below:

[0053] Integrated Sensing and Communication (ISAC), Communication & Sensing (C&S) have been developing in parallel, but with limited intersection. They have many commonalities in signal processing algorithms, devices, and to some extent, system architectures. In recent years, traditional radars are evolving towards more general wireless sensing. Wireless sensing can broadly refer to retrieving information from received radio signals. For wireless sensing related to the location of the sensed target, common signal processing methods can be used to estimate dynamic parameters such as the reflection delay, angle of arrival, angle of departure, and Doppler of the target signal; for sensing the physical characteristics of the target, it can be achieved by measuring the inherent signal patterns of the device / object / activity. These two sensing methods can be respectively called sensing parameter estimation and pattern recognition. In this sense, wireless sensing refers to a more general sensing technology and application using radio signals.

[0054] Integrated Sensing and Communication can also be called integrated communication and sensing. ISAC has the potential to integrate wireless sensing into mobile networks, which are here called Perceptive Mobile Networks (PMNs). Perceptive Mobile Networks can provide both communication and wireless sensing services simultaneously, and due to their large broadband coverage and powerful infrastructure, are expected to become an omnipresent wireless sensing solution. Perceptive Mobile Networks can be widely applied to communication and sensing in the fields of transportation, communication, energy, precision agriculture, and security. It can also provide complementary sensing capabilities to existing sensor networks, with unique day-night operation functions and the ability to penetrate fog, leaves, and even solid objects.

[0055] In a mobile communication network, a base station (including one or more Transmission Reception Points (TRPs) on the base station) and a User Equipment (UE) (including one or more sub-arrays or panels (Panels) on the UE) can serve as sensing nodes participating in sensing or integrated sensing and communication services. Typical UEs include mobile phone terminals, portable tablets, etc. By sending and receiving a first signal between nodes, it is possible to sense a certain area or an entity target. The first signal can be a signal that does not contain transmission information, such as LTE / NR synchronization and reference signals, including Synchronization Signal and PBCH block (SSB) signals, Channel State Information-Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), Sounding Reference Signal (SRS), Positioning Reference Signal (PRS), Phase Tracking Reference Signal (PTRS), etc.; it can also be a single-frequency Continuous Wave (CW), Frequency Modulated CW (FMCW) commonly used in radar, as well as ultra-wideband Gaussian pulses, etc.; it can also be a newly designed dedicated signal with good correlation characteristics and low peak-to-average power ratio, or a newly designed integrated sensing and communication signal that not only carries certain information but also has good sensing performance. For example, the new signal is formed by splicing, combining, or superimposing at least one dedicated sensing signal or reference signal and at least one communication signal in the time domain or frequency domain.

[0056] A node that sends or receives a sensing signal is called a node participating in sensing (or sensing node). The sensing node can be a base station or a UE. The device that determines the sensing node after handover and determines the sensing method of the sensing node after handover can be a base station, a UE, or a device in the core network, such as a Sensing Function (SF), an Access and Mobility Management Function (AMF), a sensing application server in the core network, etc.

[0057] Furthermore, the node that sends the first signal is called the first node, and the node that receives the first signal is called the second node.

[0058] Further, after receiving the first signal, the second node can obtain, through signal processing, the multipaths of the first signal that are emitted from the first node, propagate through the wireless environment, and finally reach the second node. Among these multipaths, the multipaths used for eliminating the non-ideal factors in sensing are called reference paths. Some parameters of the reference paths, including time delay, Doppler frequency, angle, etc., can be known in advance or obtained through some known information. However, due to the non-ideal factors existing in the first node and the second node, there is a deviation between the measured values of the parameters of the reference paths actually obtained by the second node and the expected values, and this deviation is the value that needs to be used to calibrate the measured value of the sensing measurement quantity or the sensing result.

[0059] For example, assume that it is known that both the first node and the second node are in a stationary state, and the reflection object corresponding to the reference path is also in a stationary state. Then the expected Doppler frequency of the reference path is 0 Hz. If the actually obtained Doppler frequency of the reference path is f d Hz, it means that at least one of the local oscillator frequency offset, sampling clock offset, and random phase of the first node and the second node introduces a measurement error of f d Hz to the measured value of the sensing measurement quantity or the sensing result, and correction is needed; for another example, if the first node and the second node are relatively stationary and there is a line-of-sight (LOS) path, and this LOS path is used as the reference path and the straight-line distance between the first node and the second node is known, it can be inferred that the expected time delay of the reference path is τ ref ns. If the actually obtained time delay of the reference path is τ' ns, it means that at least one of the sampling clock offset and random phase of the first node and the second node introduces a measurement error of τ' - τ ref ns to the measured value of the sensing measurement quantity or the sensing result, and correction is needed.

[0060] It should be noted that the accuracy of obtaining the parameters of the reference path determines the effect of eliminating the non-ideal factors in sensing. And the accuracy of obtaining the parameters of the reference path is related to the selected reference path. If the signal-to-noise ratio or signal-to-interference-and-noise ratio of the reference path is low, it may affect the accuracy of the second node's estimation of the reference path parameters. Due to the changes in the wireless environment, the signal-to-noise ratio of the reference path may not remain stable. In addition, when the multipaths in the wireless environment are relatively rich, other non-reference paths may have strong interference on the reference path. These uncertain factors will all lead to a decline in the parameter estimation performance of the reference path, and further lead to a decline in the performance of eliminating the non-ideal factors in sensing.

[0061] Therefore, it is necessary for the network to assist the sensing nodes in selecting reference paths based on the environmental information and network information it has. In addition, due to changes in the wireless environment and / or the movement or change of the sensing nodes, it is also necessary for the network to switch the previously selected reference paths and select multiple paths that can better eliminate the sensing non-ideal factors as the reference paths.

[0062] After the reference path selection, the selected reference path is called the target reference path, and the reference path before selection is called the source reference path. The reflector associated with the reference path is called the reference target, and the reference target includes at least one of the following: a passive target with at least one sensing measurement quantity accurately known, or a passive target with known reflection characteristics in the target dimension, a backscatter device (such as a backscatter tag or a radio frequency identification (RFID) tag), a reconfigurable intelligent surface (RIS). The target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a joint dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0063] Next, in combination with the accompanying drawings, the sensing processing method provided by the embodiments of the present application will be described in detail through some embodiments and their application scenarios.

[0064] Refer to Figure 2 , the embodiments of the present application provide a sensing processing method, as Figure 2 shown, the sensing processing method includes:

[0065] Step 201, a first device sends first indication information to a second device, the first indication information is used to indicate information related to multiple paths, the information related to the multiple paths is used to eliminate the sensing non-ideal factors of the first measurement, and the first device is a first node, a sensing function network element or a second node;

[0066] Among them, the sensing non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0067] Among them, when the first device is a first node or a sensing function network element, the second device is a second node, and when the first device is a second node, the second device is a first node or a sensing function network element; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0068] In the embodiments of the present application, the first device may determine the first indication information and then send the first indication information to the second device, so that the target reference path can be determined based on the first indication information during the first measurement, thereby eliminating the perceived non-ideal factors in the first measurement and improving the accuracy of the measurement result.

[0069] Optionally, the first indication information may be determined by the first node, the second node or the sensing functional network element, and then the first indication information is sent to other corresponding devices. For example, the first indication information may be determined by the first node or the sensing functional network element and sent to the second node. At this time, the second node may directly use the first indication information to eliminate the perceived non-ideal factors in the first measurement. The first indication information may also be determined by the second node and then sent to the first node or the sensing functional network element. At this time, the second node may use the first indication information to eliminate the perceived non-ideal factors in the first measurement, or use the first indication information to eliminate the perceived non-ideal factors in the first measurement after receiving the feedback from the first node (such as agreeing to use the first indication information); in addition, the first node may re-determine the second indication information based on the first indication information as a reference, and the second node uses the second indication information to eliminate the perceived non-ideal factors in the first measurement.

[0070] In the embodiments of the present application, the first device sends the first indication information to the second device. The first indication information is used to indicate the relevant information of the multipath, and the relevant information of the multipath is used to eliminate the perceived non-ideal factors in the first measurement. The first device is the first node, the sensing functional network element or the second node; wherein, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node; wherein, when the first device is the first node or the sensing functional network element, the second device is the second node, and when the first device is the second node, the second device is the first node or the sensing functional network element; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement. In this way, by sending the first indication information by the first device, the reference path for eliminating the perceived non-ideal factors in the first measurement can be flexibly determined according to the first indication information, so the effect of eliminating the perceived non-ideal factors is improved.

[0071] Optionally, in some embodiments, the method further includes:

[0072] The first device obtains target information, and the target information is used to determine the first indication information. The target information includes at least one of the first information, the second information, the third information, and the fourth information;

[0073] Among them, the first information is the relevant information of the reference target, the reference target is a reflection object associated with the reference path, the reference path is a path that can be used to eliminate the perception non-ideal factors, the second information is the relevant information of the perception node, the third information is the measurement-related information, and the fourth information includes at least one of the quality of service and the perception prior information.

[0074] In the embodiments of the present application, since the target information is obtained, the current perception environment and network environment can be known, so that the best reference path can be determined to eliminate the perception non-ideal factors, and thus the effect of eliminating the perception non-ideal factors can be further improved.

[0075] Optionally, in some embodiments, the first information includes at least one of the following:

[0076] A list of backscatter device identifiers corresponding to the sensing area;

[0077] A list of backscatter device identifiers corresponding to the sensing target;

[0078] The number of reference targets associated with the sensing area;

[0079] The number of reference targets associated with the sensing target;

[0080] The status information of the reference target.

[0081] In the embodiments of the present application, the identifier list of the above backscatter device may be the Electronic Product Code (EPC) of RFID, or may be the ID of a new device.

[0082] Optionally, the status information of the reference target includes at least one of the following:

[0083] Position information, for example, two-dimensional or three-dimensional position information, including the Cartesian coordinates or polar coordinates of the origin of the reference system of the backscatter device;

[0084] Velocity information, for example, magnitude and direction;

[0085] Shape information.

[0086] When the reference target is a backscatter device (including a tag), the status information further includes antenna orientation information or antenna array orientation information.

[0087] In the case where the reference target is a backscatter device, the first information may further include the sensing capability information of the backscatter device, where the sensing capability information includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; array arrangement information; error statistical distribution parameters of the reflection signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shifting ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

[0088] In the embodiments of the present application, the operating frequency of each channel can be understood as the subcarrier frequency within the bandwidth; the above-mentioned number of antennas may include the number of transmitting antennas and the number of receiving antennas; the above-mentioned antenna array information can be understood as the antenna array information of a single backscatter device, for example, it may include antenna spacing and antenna formation, etc.; the array arrangement information can be understood as a backscatter device array formed by multiple backscatter devices, where 1 backscatter device is used as 1 array element, including backscatter device spacing, backscatter device array formation, etc.; the above-mentioned function method may include passive, semi-passive, and active, etc.; the above-mentioned energy storage capacity can be understood as the maximum energy storage capacity; the above-mentioned amplitude modulation ability can be understood as the amplitude information of the adjustable reflection signal supported, continuous amplitude modulation or discrete amplitude modulation, and the number of states of the corresponding continuous or discrete characteristics; the above-mentioned phase modulation ability can be understood as the phase information of the adjustable reflection signal supported, continuous phase modulation or discrete phase modulation, and the number of states of the corresponding continuous or discrete characteristics; the above-mentioned frequency modulation ability can be understood as the frequency information of the adjustable reflection signal supported, continuous frequency modulation or discrete frequency modulation, and the number of states of the corresponding continuous or discrete characteristics; the above-mentioned duplex ability may include support for half-duplex, support for full-duplex, and support for sub-band full-duplex; the above-mentioned amplification ability can be understood as the amplification factor; the above-mentioned frequency shifting ability may include frequency shifting at the KHz and MHz levels; the above-mentioned sideband suppression ability may include having, not having, only having upper sideband suppression ability, only having lower sideband suppression ability, etc.; the above-mentioned measurement ability can be understood as the ability to obtain sensing measurement quantities, for example, it includes whether there is a measurement ability and what kind of sensing measurement quantity measurement ability; the above-mentioned self-sensing ability may include whether the antenna and circuit impedance change information of the backscatter device can be obtained, and whether the microcontroller unit (MCU) of the backscatter device can obtain the measurement information of the dedicated sensor.

[0089] In the case where the reference target is a backscatter device, the first information may further include the type of encryption algorithm, the type of forward error correction (FEC) for channel coding, and the corresponding coding rate.

[0090] When the reference target includes a reconfigurable intelligent surface (RIS) device, the first information may include signal regulation information of the RIS device.

[0091] In the embodiments of this application, the signal regulation information of the RIS device includes at least one of the following: RIS signal regulation type, RIS signal forwarding behavior, frequency response characteristic of the RIS signal, manipulation granularity of RIS signal regulation, size of the RIS unit of the RIS device, cell interval length of the RIS unit array, scale of the RIS unit array, speed of RIS unit state switching, speed of RIS unit array state switching, grouping state of the RIS unit array, pre-stored RIS mode set of the RIS device.

[0092] For the RIS signal regulation type, for example, phase regulation RIS, amplitude regulation RIS, polarization regulation RIS, or a combination thereof;

[0093] For the RIS signal forwarding behavior, for example, signal reflection RIS, signal transmission RIS, or RIS that reflects and transmits simultaneously;

[0094] For the frequency response characteristic of the RIS signal, for example, the desired signal frequency range;

[0095] For the manipulation granularity of RIS signal regulation, including continuous state control, discrete state control, such as 1-bit phase control, 2-bit phase control, etc.;

[0096] For the size of the RIS unit of the RIS device, including length and width, such as 1 / 4 wavelength of the center frequency point;

[0097] For the scale of the RIS unit array, including information such as the number of rows and columns;

[0098] The grouping state of the RIS unit array, for example, each RIS unit is independently controlled, and the 2×2 RIS units are grouped for overall control.

[0099] In addition, it also includes the codebook or codebook set used by the RIS. It can be understood that the above parameters can be reported to the network-side device through the active wireless module carried on the RIS device, and the downlink frame synchronization can be obtained by receiving the downlink signal of the network-side device.

[0100] Optionally, the above second information may include at least one of the following: available resource information; hardware information; detection capability indication information; status information.

[0101] In the embodiments of this application, the above available resource information can be understood as the resource information available for the second node to perform sensing or integrated sensing and communication, including at least one of the following:

[0102] The available bandwidth resources include, for example: the number of physical resource blocks (PRBs), the number of subcarriers, the number of resource elements (REs) in the frequency domain, and the number of bandwidth parts (BWPs);

[0103] The available time resources include, for example: the number of OFDM frames, the number of OFDM time slots, the number of OFDM symbols, and the number of time domain resource units;

[0104] The available antenna resources include, for example: the number of antenna ports (including the number in the horizontal and vertical directions and the total number), the number of physical antennas (including the number in the horizontal and vertical directions and the total number), the antenna port index, and the physical antenna index.

[0105] Optionally, the above hardware information can be understood as the hardware information of the second node, and may include, for example, at least one of the following:

[0106] Antenna port information, for example, includes: the position coordinates of the equivalent phase center of the antenna port relative to a certain predetermined reference point on the antenna array, the antenna port formation, and the number of physical antennas of the subarray to which the antenna port is connected;

[0107] Physical antenna information, such as the position coordinates of the physical antenna relative to a certain predetermined reference point on the antenna array, the physical antenna formation, and the formation of the subarray to which the antenna port is connected; where the formation may include: linear array, planar array, circular array, cylindrical array, L-shaped array, and non-uniform array, etc.

[0108] Optionally, the above detection capability indication information may include at least one of the following:

[0109] The noise floor level (NFL) in the delay domain of at least one antenna port;

[0110] The noise floor level in the Doppler domain of at least one antenna port;

[0111] The noise floor level in the angle domain of multiple antenna ports;

[0112] The detection dynamic range in the delay domain of at least one antenna port;

[0113] The detection dynamic range in the Doppler domain of at least one antenna port;

[0114] The detection dynamic range in the angle domain of multiple antenna ports.

[0115] Optionally, the status information of the above-mentioned sensing nodes may include at least one of the following:

[0116] The position information of the sensing node, which may be, for example, two-dimensional or three-dimensional position information, including the Cartesian coordinates or polar coordinates of the origin of the reference system of the sensing node;

[0117] The speed information of the sensing node, such as magnitude and direction;

[0118] The orientation information of the antenna or antenna array of the sensing node.

[0119] Optionally, the above-mentioned third information includes at least one of the following: the measured value of the target metric, the measured value of the sensed measurement quantity, the sensing result, the measured value of the first target metric, the measured value of the second target metric; <s

[0120] Wherein, the first target metric is a sensing performance metric other than the target metric, and the second target metric is a communication performance metric other than the target metric.

[0121] It should be noted that the transmission methods of the above-mentioned first information, second information, third information and fourth information may include at least one of the following situations:

[0122] Sent from the second node to the first node;

[0123] Sent from the second node to the sensing functional network element, and then sent from the sensing functional network element to the first node;

[0124] Sent from the sensing functional network element to the first node;

[0125] Sent from at least one of the first node and the second node to the sensing functional network element. !>

[0126] Optionally, in some embodiments, the fourth information includes at least one of quality of service and sensing prior information

[0127] Among them, the perception prior information or perception requirements include the following information: perception service or perception service type, the perception service can be, for example, detecting whether a target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, radar cross section RCS (Radar Cross Section, RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, population statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.; the perception service type can be to classify multiple different perception services according to certain characteristics, for example, according to function, it can be divided into detection-type perception services (for example, including intrusion detection, fall detection), parameter estimation-type perception services (distance, angle, speed calculation), recognition-type perception services (motion recognition, identity recognition), etc., and can also be divided according to the range of perception (close-range perception, medium-range perception, long-range perception), according to the degree of perception fineness (coarse-grained perception, fine force perception, etc.), according to power consumption / energy consumption, according to resource occupancy, etc. If the sensing service is respiratory monitoring, the corresponding normal respiratory rate can be determined based on the person's gender and age (for example, male: 13 to 21 times / minute, female 15 to 20 times / minute; adult: 12 to 20 times / minute, child: about 30 to 40 times / minute), which can be used as perception prior information.

[0128] Optionally, in some embodiments, the first indication information includes at least one of the following:

[0129] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0130] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0131] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0132] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0133] a target processing method, the target processing method being used to indicate a signal processing method used by a recipient of the first indication information when determining a reference path;

[0134] at least part of the first information;

[0135] at least part of the second information;

[0136] Among them, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a joint dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0137] Optionally, the above at least one target index can be understood or replaced with a list of indexes of multipaths, and this index list is used to determine the multipaths that can be used as reference paths. The index list at least contains the index values of at least one multipath of at least 1 target dimension. The target index can be a relative index, and its value can be the index difference relative to any specified multipath in the target dimension; for example, assuming that the index of the first path (or LOS (Line of Sight) path) (absolute index) is 5, when the target index is an absolute index, it is 8, and when the target index is a relative index, it is 8 - 5 = 3.

[0138] The above target condition can also be understood as the condition that the reference path needs to meet. For example, when the target condition is to indicate the target dimension range of the reference path, it can be the preset interval value of any at least one dimension of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension; for another example, when the target condition is the condition that the reference path needs to meet, the target condition can be the preset threshold of any at least one dimension of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension; the preset interval or threshold can be not less than 1.

[0139] Optionally, the above target feature can include the variation law of the reference path in the power dimension with time or the variation law of the reference path in the time delay - Doppler dimension within a preset time period, etc.

[0140] Optionally, the above target parameters can include at least one of the following: the complex amplitude (including amplitude and phase) of the target polarization direction, power, time delay, Doppler frequency, azimuth angle (including at least one of the departure azimuth angle and arrival azimuth angle), and elevation angle (including at least one of the departure elevation angle and arrival elevation angle). Among them, the target polarization includes at least one of vertical polarization, horizontal polarization, +45° polarization, and -45° polarization.

[0141] Optionally, the above target processing method can include the necessary configuration information required for signal processing. For example, it indicates that the receiving party uses FFT to estimate the reference path. Optionally, the target processing method includes the number of points used by FFT, the starting position of the FFT window, etc.; for another example, it indicates that the receiving party uses MUSIC to estimate the reference path. Optionally, the target processing method includes the dimension of the data covariance matrix used by MUSIC, the calculation method of the data covariance matrix, the number of signal sources estimated by MUSIC, the search step size, the search interval, etc.

[0142] Optionally, the above target condition can include at least one of the following:

[0143] The measured value of at least one sensed measurement quantity of the target measurement node remains within a preset range within a preset time period, or the number of times it falls within the preset range within the preset time period reaches a preset number of times;

[0144] The difference between the measured value of at least one sensed measurement quantity of the target measurement node and the measured value of the corresponding sensed measurement quantity obtained by the source node remains within a preset range within a preset time period, or the number of times it falls within the preset range within the preset time period reaches a preset number of times;

[0145] The measured value of at least one target index of the target measurement node remains within a preset range within a preset time period, or the number of times it falls within the preset range within the preset time period reaches a preset number of times;

[0146] The difference between the measured value of at least one target index of the target measurement node and the measured value of the corresponding target index obtained by the source node remains within a preset range within a preset time period, or the number of times it falls within the preset range within the preset time period reaches a preset number of times;

[0147] The measured values of at least one sensed measurement quantity and at least one communication measurement quantity of the target measurement node both remain within a preset range within a preset time period, or the number of times both fall within the preset range within the preset time period reaches a preset number of times;

[0148] The measured values of at least one target index and at least one communication measurement quantity of the target measurement node remain within a preset range within a preset time period, or the number of times both fall within the preset range within the preset time period reaches a preset number of times;

[0149] The difference between at least one sensed result of the target measurement node and the corresponding sensed result of the source node remains within a preset range within a preset time period, or the number of times it falls within the preset range within the preset time period reaches a preset number of times;

[0150] The configuration information of at least one sensing parameter used by the target measurement node meets the minimum configuration requirements of sensing QoS;

[0151] The state of the sensing target changes (the state includes position, speed, etc.);

[0152] The positions of the nodes participating in sensing change.

[0153] Optionally, in some embodiments, when the first device is the first node or a sensing functional network element, the method further includes:

[0154] The first device performs a first operation;

[0155] Wherein, when the first device is the first node, the first operation includes: sending first target configuration information to the second node; sending first configuration information to a reference target;

[0156] When the first device is a sensing functional network element, the first operation includes: sending second configuration information to the first node, sending first target configuration information to the second node; sending first configuration information to the reference target;

[0157] Wherein, the first target configuration information is determined based on target information, and the first target configuration information includes at least one of the first configuration information and the second configuration information. The first configuration information is used for the reference target to backscatter a first signal, and the second configuration information is used for the first measurement.

[0158] In the embodiments of the present application, the first node or the sensing functional network element can determine the first target configuration information based on the acquired target information, and then send the corresponding configuration to the corresponding device to perform the first measurement.

[0159] Optionally, in some embodiments, the above first configuration information may include at least one of the following:

[0160] Modulation type, including Amplitude Shift Keying (ASK) (including On–Off Keying (OOK), Frequency Shift Keying (FSK), Minimum Shift Keying (MSK), Continuous Phase Frequency Shift Keying (CP-FSK), Phase Shift Keying (PSK), Offset Quadrature Phase Shift Keying (O-QPSK), Differential Binary Phase Shift Keying (DBPSK), etc.);

[0161] The spreading factor or modulation rate or Backscatter Link Frequency (BLF) of the modulation;

[0162] Time-frequency resource information used when the reference target participates in the first measurement.

[0163] Optionally, the second configuration information can be understood as parameter configuration information related to sensing, and may include at least one of the following:

[0164] Waveform type, such as OFDM, SC-FDMA, OTFS, Frequency Modulated Continuous Wave (FMCW), pulse signal, etc.;

[0165] Sub - carrier spacing: For example, the sub - carrier spacing of an OFDM system is 30 KHz;

[0166] Guard interval: The time interval between the end of the signal transmission time and the time when the latest echo signal of the signal is received; this parameter is proportional to the maximum sensing distance; for example, it can be calculated by 2dmax / c, where dmax is the maximum sensing distance (belonging to sensing requirements). For example, for a self - transmitting and self - receiving sensing signal, dmax represents the maximum distance from the sensing signal transceiver point to the signal transmitting point; in some cases, the OFDM signal cyclic prefix CP can act as the minimum guard interval;

[0167] Bandwidth: This parameter is inversely proportional to the range resolution and can be obtained by c / 2 / delta_d, where delta_d is the range resolution (belonging to sensing requirements); c is the speed of light;

[0168] Burst duration: This parameter is inversely proportional to the rate resolution (belonging to sensing requirements). This parameter is the time span of the sensing signal, mainly for calculating the Doppler frequency shift; this parameter can be calculated by c / 2 / delta_v / fc; where, delta_v is the velocity resolution; fc is the carrier frequency of the sensing signal;

[0169] Time domain interval: This parameter can be calculated by c / 2 / fc / v_range; where, v_range is the maximum speed minus the minimum speed (belonging to sensing requirements); this parameter is the time interval between two adjacent sensing signals;

[0170] Transmitted signal power, for example, taking values every 2 dBm from - 20 dBm to 23 dBm;

[0171] Signal format, such as SRS, DMRS, PRS, etc., or other predefined signals, as well as related sequence format and other information;

[0172] Signal direction; for example, the direction of the sensing signal or beam information;

[0173] Time resource, such as the time slot index or symbol index of the time slot where the sensing signal is located; among them, time resources are divided into two types. One is a one - time time resource, such as sending an omnidirectional sensing signal in one symbol. The other is a non - one - time time resource, such as multiple groups of periodic time resources or discontinuous time resources (which can include start time and end time). Each group of periodic time resources sends sensing signals in the same direction, and the beam directions on different groups of periodic time resources are different;

[0174] Frequency resources, including the center frequency point of the sensing signal, bandwidth, resource blocks (RBs) or subcarriers, Node A (Point A), starting bandwidth position, etc.

[0175] Quasi co-location (QCL) relationships. For example, the sensing signal includes multiple resources, and each resource has a QCL with an SSB. The QCL includes Type A, B, C, or D.

[0176] Antenna configuration information, including:

[0177] The antenna element ID or antenna port ID for transmitting and / or receiving the sensing signal.

[0178] The panel ID and element ID for transmitting and / or receiving the sensing signal.

[0179] The position information of the antenna elements for transmitting and / or receiving the sensing signal relative to a local reference point on the antenna array (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates representation).

[0180] The position information of the panel for transmitting and / or receiving the sensing signal relative to a local reference point on the antenna array (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates representation), and the position information of the antenna elements for transmitting the sensing signal within these selected panels relative to a unified reference point of the panel (such as the center point of the panel) (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates representation);

[0181] The bitmap information of the antenna elements. For example: this bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving the sensing signal, and "0" to indicate that the element is not selected (it can also be the opposite);

[0182] The bitmap information of the array panel. For example: this bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving the sensing signal, and "0" to indicate that the element is not selected (it can also be the opposite). And the bitmap information of the elements within these selected panels.

[0183] Optionally, in some embodiments, when the first device is the first node, after the first device sends the first indication information to the second device, the method further includes:

[0184] The first device transmits the first signal;

[0185] The first device receives a first measurement result corresponding to the first measurement from the second device. The first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference diameter, and the target reference diameter is determined based on the first indication information.

[0186] In the embodiments of the present application, the first node and the second node may perform a first measurement based on first configuration information, and a reference target may participate in the first measurement based on the first configuration information. Specifically, after the second node performs the first measurement, it can obtain measurement information on multiple diameters, and determine a perception non-ideal factor based on the measurement information of the target reference diameter determined based on the first indication information and prior information. Finally, the perception non-ideal factor is eliminated from the measurement information corresponding to the measured diameter based on the determined perception non-ideal factor, so as to obtain a first measurement result. The first measurement result may include at least one of a target index measurement value, a perception measurement quantity measurement value, and a measurement value of a first target index.

[0187] Optionally, in some embodiments, when the first device is the second node, the method further includes:

[0188] The first device receives first target configuration information from the second device. The first target configuration information is determined based on at least one of the first indication information and target information, and the first target configuration information includes at least one of first configuration information and second configuration information. The first configuration information is used for the reference target to backscatter a first signal, and the second configuration information is used for the first measurement;

[0189] The first device performs the first measurement based on the first target configuration information.

[0190] In the embodiments of the present application, the second node may obtain first target configuration information from the first node or a perception function network element, then perform a first measurement based on the first target configuration information, and finally obtain a first measurement result.

[0191] Optionally, in some embodiments, when the first device is the second node, the method further includes:

[0192] The first device receives second indication information from the second device. The second indication information is determined based on the first indication information, and the second indication information is used to indicate relevant information of multiple paths, and the relevant information of the multiple paths is used to eliminate the perception non-ideal factor of the first measurement.

[0193] In an embodiment of the present application, when the above first indication information is used to determine a reference path and the second device agrees to use the reference path corresponding to the first indication information as the target reference, the second indication information may include an acceptance indication information or an indication information identical to the first indication information; when the above first indication information is used to determine a reference path and the second device does not agree to use the reference path corresponding to the first indication information as the target reference, the second indication information may be used to indicate other reference paths, that is, information related to multiple paths. When the above first indication information is used to determine at least two reference paths, the second indication information may include an index of one of the reference paths or information related to indicating a reference path.

[0194] For example, in some embodiments, the second indication information includes at least one of the following:

[0195] At least one target index, where the target index is used to indicate one path in the multiple paths of the target dimension;

[0196] A target condition, where the target condition is used to represent the range of the target dimension where the reference path is located;

[0197] A target feature, where the target feature is used to indicate the feature information of the reference path in the target dimension;

[0198] A target parameter, where the target parameter is used to indicate the parameter information of the reference path;

[0199] A target processing method, where the target processing method is used to indicate the signal processing method used by the recipient of the second indication information when determining the reference path;

[0200] At least part of the content of the first information;

[0201] At least part of the content of the second information;

[0202] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension and elevation angle dimension.

[0203] In an embodiment of the present application, the first information is information related to a reference target, the reference target is a reflection object associated with the reference path, the reference path is a path that can be used to eliminate the perceived non-ideal factors, and the second information is information related to the sensing node.

[0204] Optionally, in some embodiments, after the first device receives the second indication information from the second device, the method further includes:

[0205] The first device determines a first measurement result corresponding to the first measurement based on the first measurement and a target reference diameter, and the target reference diameter is determined based on the second indication information.

[0206] Optionally, in some embodiments, when the first device is the first node or a sensing function network element, the first device sending the first indication information to the second device includes:

[0207] The first device determines second target configuration information based on target information, and the second target configuration information includes at least one of third configuration information and fourth configuration information. The third configuration information is used to backscatter a second signal with reference to a target, and the fourth configuration information is used for a second measurement; the second signal is used for the second measurement;

[0208] The first device performs a second operation; wherein, when the first device is a sensing function network element, the second operation includes: sending the fourth configuration information to the first node, sending the second target configuration information to the second node; sending the third configuration information to the reference target; when the first device is the first node, the second operation includes: sending the second target configuration information to the second node; sending the third configuration information to the reference target;

[0209] The first device determines the first indication information based on a second measurement result corresponding to the second measurement;

[0210] The first device sends the first indication information to the second device.

[0211] In the embodiments of the present application, before determining the target reference diameter, that is, before sending the first indication information, a sensing measurement can be first performed based on the second target configuration information. Thereby, the target reference diameter can be better determined, and further, the elimination effect of sensing non-ideal factors can be further improved.

[0212] It should be understood that the parameters included in the above third configuration information may be the same as, or partially the same as, the parameters included in the above first configuration information, and the parameters included in the above fourth configuration information may be the same as, or partially the same as, the parameters included in the above second configuration information.

[0213] It should be noted that after the first node and the second node perform the second measurement based on the second target configuration information, the second node can send the second measurement result corresponding to the second measurement to the first device, and then the first device determines the first indication information based on the received second measurement result. Among them, the content included in the second measurement result may be the same as, partially the same as, or different from the content included in the above first measurement result.

[0214] Optionally, in some embodiments, the first device determines the first indication information based on the second measurement result corresponding to the second measurement, including:

[0215] The first device determines the first indication information based on the second measurement result corresponding to the second measurement and the target information.

[0216] In the embodiments of the present application, since the target information is added to determine the first indication information, the accuracy of determining the target reference path can be improved, and further the effect of eliminating the perceived non-ideal factors can be enhanced.

[0217] Optionally, in some embodiments, when the first device is the first node, the method further includes:

[0218] The first device sends a second signal based on the fourth configuration information;

[0219] The first device receives the second measurement result corresponding to the second measurement from the second device, and the second measurement result corresponding to the second measurement is determined based on the second target configuration information.

[0220] Optionally, in some embodiments, when the first device is the second node, before the first device sends the first indication information to the second device, the method further includes:

[0221] The first device receives the second target configuration information from the second device, and the second target configuration information is determined based on at least one of the first indication information and the target information, and the second target configuration information includes at least one of the first configuration information and the second configuration information. The first configuration information is used to backscatter the first signal with reference to the target, and the second configuration information is used for the second measurement;

[0222] The first device performs a second measurement based on the second target configuration information to obtain a second measurement result;

[0223] The first device determines the first indication information based on the second measurement result and the target information;

[0224] The first device sends the first indication information to the second device.

[0225] It should be noted that the classification of multipath can include:

[0226] First target path: The path only associated with the perceived target;

[0227] Second target path: A path that is associated with both the perceived target and the reference target participating in the perception. The second target path includes the following propagation paths: Node A -> Perceived target -> Reference target -> Node A / B; Node A -> Reference target -> Perceived target -> Node A / B; Node A -> Reference target 1 -> Perceived target -> Reference target 2 -> Node A / B; ActiveTag -> Perceived target -> Node B;

[0228] Third target path: A path that is only associated with the reference target participating in the perception; that is: Node A -> Reference target -> Node A / B; Active Tag -> Node B;

[0229] First interference path: Other multipaths between Node A and Node B (or Node A), or between Active Tag and Node B, excluding the first target path, the second target path, and the third target path. It includes at least one of the following: A path that is not associated with the perceived target or the reference target; A reflected path that is associated with the perceived target and / or the reference target but also passes through other unknown reflectors; A reflected path that exits from the Active Tag and passes through other unknown reflectors;

[0230] Second interference path: Other multipaths between Node A and Node B (or Node A), or between Active Tag and Node B, excluding the first target path and the second target path;

[0231] Third interference path: Other multipaths between Node A and Node B (or Node A), or between Active Tag and Node B, excluding the second target path and the third target path;

[0232] Fourth interference path: Other multipaths between Node A and Node B (or Node A), or between Active Tag and Node B, excluding the first target path and the third target path.

[0233] The target metric refers to the metric related to the elimination of non-ideal factors measured by a receiving device such as a base station / UE in the integrated perception / communication based on the reference path. Specifically, it can include at least one of the following: A metric related to the received power; A metric related to the interference and noise power; A metric related to both the received power and the interference or noise power.

[0234] Optionally, the metric related to the received power includes at least one of the following:

[0235] First metric (received power of the first target path), which is used to represent the linear average of the first power on the first resource. The first power is the received power of the first target path in the channel response measured for the first signal, and the first resource is the resource unit carrying the first signal;

[0236] The second metric (received power of the second target path), which is used to represent the linear average value of the second power on the second resource. The second power is the received power of the second target path in the channel response measured for the second signal. The second signal is the signal obtained after the first signal propagates through the second target path, and the second resource is the resource unit carrying the second signal;

[0237] The third metric (received power of the third target path), which is used to represent the linear average value of the third power on the third resource. The third power is the received power of the third target path in the channel response measured for the third signal. The third signal is the signal obtained after the first signal propagates through the third target path, and the third resource is the resource unit carrying the third signal;

[0238] Among them, the first target path is the path only associated with the sensing target; the second target path is the path associated with both the sensing target and the backscatter device participating in sensing; the third target path is the path only associated with the backscatter device participating in sensing.

[0239] Optionally, for any at least one reference target on the propagation path of the second target path: when the reference target reflects the signal, it can be that the reference target frequency-shifts the first signal and then reflects it; or it can be a direct total reflection of the first signal. When all reference targets on the propagation path of the second target path are total reflections, the resource unit carrying the second signal is the same as the resource unit carrying the first signal. When the reference target transmits the signal, the second signal is sent by the reference target.

[0240] Optionally, for any at least one reference target on the propagation path of the third target path: when the reference target reflects the signal, it can be that the reference target frequency-shifts the first signal and then reflects it, or it can be a direct total reflection of the first signal; when all reference targets on the propagation path of the third target path are total reflections, the resource unit carrying the third signal is the same as the resource unit carrying the first signal; when the reference target transmits the signal, the third signal is sent by the reference target.

[0241] Optionally, the metrics related to the interference and noise power include at least one of the following:

[0242] The fourth metric, which is the sum of the fourth power and the fifth power. The fourth power represents the linear average value of the power of the fourth target path in the channel response of the first signal on the first resource. The fourth target path is the other path except the first target path. The fifth power represents the linear average value of the interference and noise power from the fourth signal on the first resource. The fourth signal is the other signal except the first signal, the second signal, and the third signal;

[0243] The fifth indicator, which is used to represent the sum of the sixth power and the seventh power. The sixth power represents the linear average of the power of the fifth target path in the channel response of the second signal on the second resource. The fifth target path is other paths except the second target path. The seventh power represents the linear average of the interference and noise power from the fourth signal on the second resource;

[0244] The sixth indicator, which is used to represent the sum of the eighth power and the ninth power. The eighth power represents the linear average of the power of the sixth target path in the channel response of the third signal on the third resource. The sixth target path is other paths except the third target path. The ninth power represents the linear average of the interference and noise power from the fourth signal on the third resource;

[0245] The seventh indicator, which is used to represent the sum of the linear average of the power of the second interference path on the fourth resource and the tenth power. The tenth power is the linear average of the interference and noise from the fourth signal on the fourth resource. The fourth resource is the resource unit carrying the first signal;

[0246] The eighth indicator, which is used to represent the sum of the linear average of the power of the third interference path on the fifth resource and the eleventh power. The eleventh power is the linear average of the interference and noise from the fourth signal on the fifth resource. The fifth resource is the set of resource units carrying the second signal and the third signal;

[0247] The ninth indicator, which is used to represent the sum of the linear average of the power of the fourth interference path on the sixth resource and the twelfth power. The twelfth power is the linear average of the interference and noise from the fourth signal on the sixth resource. The sixth resource is the set of resource units carrying the first signal and the third signal;

[0248] The tenth indicator, which is used to represent the sum of the linear average of the power of the first interference path on the seventh resource and the thirteenth power. The thirteenth power is the linear average of the interference and noise from the fourth signal on the seventh resource. The seventh resource is the set of resource units carrying the first signal, the second signal and the third signal;

[0249] The eleventh indicator, which is used to represent the linear average of the interference and noise power from signals other than the first signal on the first resource;

[0250] The twelfth indicator, which is used to represent the linear average of the interference and noise power from the fifth signal on the second resource. The fifth signal is other signals except the second signal;

[0251] The thirteenth metric, which is used to represent the linear average of the interference and noise power from the sixth signal on the third resource, where the sixth signal is other signals except the third signal;

[0252] The fourteenth metric, which is used to represent the linear average of the interference and noise power from the seventh signal on the fourth resource, where the seventh signal is other signals except the first signal and the second signal;

[0253] The fifteenth metric, which is used to represent the linear average of the interference and noise power from the eighth signal on the fifth resource, where the eighth signal is other signals except the second signal and the third signal;

[0254] The sixteenth metric, which is used to represent the linear average of the interference and noise power from the ninth signal on the sixth resource, where the ninth signal is other signals except the first signal and the third signal;

[0255] The seventeenth metric, which is used to represent the linear average of the interference and noise power from the tenth signal on the seventh resource, where the ninth signal is other signals except the first signal, the second signal and the third signal;

[0256] The eighteenth metric, which is used to represent the linear average of the power of the fourth target path in the channel response of the first signal on the first resource;

[0257] The nineteenth metric, which is used to represent the linear average of the power of the fifth target path in the channel response of the second signal on the second resource;

[0258] The twentieth metric, which is used to represent the linear average of the power of the sixth target path in the channel response of the third signal on the third resource.

[0259] In the embodiments of the present application, the above fourth metric may be equal to the first total received power minus the first metric, where the first total received power may represent the linear average of the total received power on the first resource (for example, including the received power of signals of the serving cell and non-serving cells, adjacent channel interference, and thermal noise, etc.), or the first total received power may be equal to the Received Signal Strength Indication (RSSI)*K1, where K1 is a coefficient greater than 0, and the measurement resource of RSSI is the first resource or other resources (such as resources configured by high-layer signaling).

[0260] Optionally, the above fifth metric may be equal to the second total received power minus the second metric. The second total received power may represent the linear average of the total received power on the second resource (e.g., including the received power of signals from serving and non-serving cells, adjacent channel interference, thermal noise, etc.).

[0261] Optionally, the above sixth metric may be equal to the third total received power minus the third metric. The third total received power may represent the linear average of the total received power on the third resource (e.g., including the received power of signals from serving and non-serving cells, adjacent channel interference, thermal noise, etc.).

[0262] Optionally, the above seventh metric may be equal to the fourth total received power minus the first metric and then minus the second metric. The fourth total received power may represent the linear average of the total received power on the fourth resource.

[0263] Optionally, the above eighth metric may be equal to the fifth total received power minus the second metric and then minus the third metric. The fifth total received power may represent the linear average of the total received power on the fifth resource.

[0264] Optionally, the above ninth metric may be equal to the sixth total received power minus the first metric and then minus the third metric. The sixth total received power may represent the linear average of the total received power on the sixth resource.

[0265] Optionally, the above tenth metric may be equal to the seventh total received power minus the first metric, then minus the second metric, and then minus the third metric. The seventh total received power may represent the linear average of the total received power on the seventh resource.

[0266] Optionally, the above eleventh metric may be equal to the first total received power minus the received power of the first signal. The received power of the first signal may be understood as the reference signal received power (RSRP) of the first signal.

[0267] Optionally, the above twelfth metric may be equal to the second total received power minus the received power of the second signal. The received power of the second signal may be understood as the RSRP of the second signal.

[0268] Optionally, the above thirteenth metric may be equal to the third total received power minus the received power of the third signal. The received power of the third signal may be understood as the RSRP of the third signal.

[0269] Optionally, the above fourteenth metric may be equal to the fourth total received power minus the received power of the first signal and then minus the received power of the second signal.

[0270] Optionally, the above fifteenth metric may be equal to the fifth total received power minus the received power of the second signal, and then minus the received power of the third signal.

[0271] Optionally, the above sixteenth metric may be equal to the sixth total received power minus the received power of the first signal, and then minus the received power of the third signal.

[0272] Optionally, the above seventeenth metric may be equal to the seventh total received power minus the received power of the first signal, then minus the received power of the second signal, and then minus the received power of the third signal.

[0273] Optionally, the above eighteenth metric may be equal to the received power of the first signal minus the first metric.

[0274] Optionally, the above nineteenth metric may be equal to the received power of the second signal minus the second metric.

[0275] Optionally, the above twentieth metric may be equal to the received power of the third signal minus the third metric.

[0276] Optionally, the metric related to both the received power and the interference or noise power includes at least one of the following:

[0277] A metric for evaluating the signal quality of the first target path;

[0278] A metric for evaluating the signal quality of the second target path;

[0279] A metric for evaluating the signal quality of the third target path;

[0280] A metric for comprehensively evaluating the signal quality of the useful signal.

[0281] Optionally, the metric for evaluating the signal quality of the first target path includes at least one of the following:

[0282] The twenty-first metric, where the twenty-first metric is equal to the first metric divided by the fourth metric;

[0283] The twenty-second metric, where the twenty-second metric is equal to the first metric divided by the eleventh metric;

[0284] The twenty-third metric, where the twenty-third metric is equal to the first metric divided by the eighteenth metric.

[0285] Optionally, the metric for evaluating the signal quality of the second target path includes at least one of the following:

[0286] The twenty-fourth metric, where the twenty-fourth metric is equal to the second metric divided by the fifth metric;

[0287] The twenty-fifth metric, where the twenty-fifth metric is equal to the second metric divided by the twelfth metric;

[0288] The twenty-sixth index, where the twenty-sixth index is equal to the second index divided by the nineteenth index.

[0289] Optionally, the index for evaluating the signal quality of the third target diameter includes at least one of the following:

[0290] The twenty-seventh index, where the twenty-seventh index is equal to the third index divided by the sixth index;

[0291] The twenty-eighth index, where the twenty-eighth index is equal to the third index divided by the thirteenth index;

[0292] The twenty-ninth index, where the twenty-ninth index is equal to the third index divided by the twentieth index.

[0293] Optionally, the index for comprehensively evaluating the useful signal quality includes at least one of the following:

[0294] The thirtieth index, where the thirtieth index = K2 * the twenty-first index + K3 * the twenty-fourth index + K4 * the twenty-seventh index; where K2, K3, and K4 are coefficients greater than 0;

[0295] The thirty-first index, where the thirty-first index = K5 * the twenty-second index + K6 * the twenty-fifth index + K7 * the twenty-eighth index; where K5, K6, and K7 are coefficients greater than 0;

[0296] The thirty-second index, where the thirty-second index = K8 * the twenty-third index + K9 * the twenty-sixth index + K 10 * the twenty-ninth index; where K8, K9, K 10 are coefficients greater than 0;

[0297] The thirty-third index, where the thirty-third index = K 11 * (the first index / the tenth index) + K 12 * (the second index / the tenth index) + K 13 * (the third index / the tenth index); where K 11 , K 12 , K 13 are coefficients greater than 0;

[0298] The thirty-fourth index, where the thirty-fourth index = K 14 * (the first index / the seventeenth index) + K 15 * (the second index / the seventeenth index) + K 16 * (the third index / the seventeenth index); where K 14 , K 15 , K 16 are coefficients greater than 0;

[0299] The thirty-fifth indicator, the thirty-fifth indicator = K 17 *(the first indicator / the seventh indicator) + K 18 *(the second indicator / the seventh indicator); where K 17 , K 18 is a coefficient greater than 0;

[0300] The thirty-sixth indicator, the thirty-sixth indicator = K 19 *(the second indicator / the eighth indicator) + K 20 *(the third indicator / the eighth indicator); where K 19 , K 20 is a coefficient greater than 0;

[0301] The thirty-seventh indicator, the thirty-seventh indicator = K 21 *(the first indicator / the ninth indicator) + K 22 *(the third indicator / the ninth indicator); where K 21 , K 22 is a coefficient greater than 0;

[0302] The thirty-eighth indicator, the thirty-eighth indicator = K 23 *(the first indicator / the fourteenth indicator) + K 24 *(the second indicator / the fourteenth indicator); where K 23 , K 24 is a coefficient greater than 0;

[0303] The thirty-ninth indicator, the thirty-ninth indicator = K 25 *(the second indicator / the fifteenth indicator) + K 26 *(the third indicator / the fifteenth indicator); where K 25 , K 26 is a coefficient greater than 0;

[0304] The fortieth indicator, the fortieth indicator = K 27 *(the first indicator / the sixteenth indicator) + K 28 *(the third indicator / the sixteenth indicator); where K 27 , K 28 is a coefficient greater than 0;

[0305] The forty-first indicator, the forty-first indicator = K 29 *(the first indicator / the eighteenth indicator) + K 30 *(the second indicator / the nineteenth indicator) + K 31 *(the third indicator / the twentieth indicator); where K 29 , K 30 , K 31 is a coefficient greater than 0.

[0306] Optionally, for the calculation methods of the above first index, second index or third index, the first index will be taken as an example for illustration below.

[0307] The terminal performs channel estimation on the transmitted first signal X(k) and the received signal Y(k) corresponding to the first signal to obtain the channel response H(k)=Y(k) / X(k), where k = 0, 1, 2,..., K - 1, representing the resource element index. After the terminal obtains the channel response X(k), it transforms it to the target dimension and determines the first target path in the target dimension. Then, the power of the first target path is calculated as the first index. If the first target path includes multiple paths, the sum of the powers of the multiple paths is calculated as the first index.

[0308] Among them, the target dimension includes one of the following: delay dimension; Doppler dimension; azimuth dimension; elevation dimension; a dimension jointly composed of at least two of the delay dimension, Doppler dimension, azimuth dimension and elevation dimension, for example, delay - Doppler dimension, delay - Doppler - angle dimension, etc.

[0309] For example, if H(f) is the channel response, where f = 0, 1, 2,..., N - 1, representing the frequency domain sampling points (such as sub - carrier indices), then H(f) can be transformed to the delay dimension (target dimension) by performing an inverse Fourier transform on H(f); again, for example, if H(f,t) is the channel response, where f = 0, 1, 2,..., N - 1, representing the frequency domain sampling points (such as sub - carrier indices), and t = 0, 1, 2,..., M - 1, representing the time domain sampling points (such as OFDM symbol indices), then H(f,t) can be transformed to the delay - Doppler dimension (target dimension) by performing an inverse Fourier transform along the frequency domain dimension and a Fourier transform along the time domain dimension; again, for example, if H(f,t,s) is the channel response, where f = 0, 1, 2,..., N - 1, representing the frequency domain sampling points (such as sub - carrier indices), t = 0, 1, 2,..., M - 1, representing the time domain sampling points (such as OFDM symbol indices), and s = 0, 1, 2,..., P - 1, representing the spatial domain sampling points (antenna indices or port indices), then H(f,t,s) can be transformed to the delay - Doppler - angle dimension (target dimension) by performing an inverse Fourier transform along the frequency domain dimension, a Fourier transform along the time domain dimension, and a Fourier transform along the antenna domain dimension.

[0310] The method for determining the first target path in the channel response measured from the first signal is as follows:

[0311] Determine the first path set. The paths in the first path set include the paths whose amplitude / power / intensity / energy in all paths exceed a certain threshold after the channel response is transformed to the target dimension. (For example Figure 3in which, radii 0, 1, 2, 3 are the radii of the first set of radii); a certain threshold can be set to be higher than the noise threshold or higher than the noise interference threshold. Among them, in Figure 3 the horizontal axis is the target dimension, and the vertical axis is the normalized amplitude / power / intensity / energy. It should be understood that this step (determining the first set of radii) is optional, and the first target radius can be determined only based on the next step.

[0312] Select the radii that meet the first condition from the first set of radii or from all radii as the first target radius.

[0313] The first condition includes at least one of the following:

[0314] The amplitude / power / intensity / energy of the radius exceeds a preset threshold or is within a preset range; for example, the preset threshold is 5 times higher than the noise threshold;

[0315] The Doppler of the radius exceeds a preset threshold or is within a preset range;

[0316] The time delay of the radius exceeds a preset threshold or is within a preset range;

[0317] The angle of the radius exceeds a preset threshold or is within a preset range;

[0318] The difference between the amplitude / power / intensity / energy of the radius and the first-arrival radius (such as the LOS radius) or the reference radius (such as the signal radius reflected by a known target (such as a Reconfigurable Intelligent Surface (RIS) / Backscatter device / other known passive targets, etc.)) exceeds a preset threshold or is within a preset range;

[0319] The Doppler difference between the radius and the first-arrival radius (such as the LOS radius) or the reference radius (such as the signal radius reflected by a known target (such as RIS / Backscatter device / other known passive targets, etc.)) exceeds a preset threshold or is within a preset range;

[0320] The time delay difference between the radius and the first-arrival radius (such as the LOS radius) or the reference radius (such as the signal radius reflected by a known target (such as RIS / Backscatter device / other known passive targets, etc.)) exceeds a preset threshold or is within a preset range;

[0321] The angle difference between the radius and the first-arrival radius (such as the LOS radius) or the reference radius (such as the signal radius reflected by a known target (such as RIS / Backscatter device / other known passive targets, etc.)) exceeds a preset threshold or is within a preset range;

[0322] The amplitude / power / intensity / energy or phase of the path satisfies a specific modulation rule, and the specific modulation rule is the modulation rule of the Tag / Backscatter device / RIS, that is, the first target path can be the path modulated and reflected by the Tag / Backscatter device / RIS.

[0323] It should be understood that the above first conditions can also be based on the statistical results over a period of time; for example, within a preset time window, the proportion of the above indicators (such as the Doppler of the path, the time delay of the path, etc.) exceeding a preset threshold or falling within a preset interval range reaches a preset proportion, or the number of times the above indicators (such as the Doppler of the path, the time delay of the path, etc.) exceed a preset threshold or fall within a preset interval range within a preset time window reaches a preset number.

[0324] Among them, the preset threshold or the set interval range is sent by other devices to the receiving device, and is determined by other devices according to the perception prior information or perception requirements. Or, the preset threshold or the set interval range is determined by the receiving device according to the perception prior information or perception requirements.

[0325] Among them, the perception prior information or perception requirements include the following information:

[0326] Perception services or perception service types. The perception services can be, for example, detecting the presence of a target, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, radar cross section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, terrain and landform, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.; the perception service types can classify multiple different perception services according to certain characteristics. For example, they can be classified into detection-type perception services (such as intrusion detection, fall detection) according to function, parameter estimation-type perception services (distance, angle, speed calculation), recognition-type perception services (action recognition, identity recognition), etc. They can also be classified according to the perception range (close-range perception, medium-range perception, long-range perception), according to the perception fineness (coarse-grained perception, fine-grained perception, etc.), according to power consumption / energy consumption, according to resource occupancy, etc. If the perception service is respiration monitoring, the corresponding normal respiration rate can be judged according to the gender and age of a person (for example, male: 13 - 21 times per minute, female: 15 - 20 times per minute; adult: 12 - 20 times per minute, child: about 30 - 40 times per minute), which can be used as perception prior information.

[0327] Perceived target area: It refers to the position area of the perceived object, or the position area where imaging or environmental reconstruction needs to be performed; for example, determine the preset interval range of the time delay of the first target path according to the approximate position / distance of the perceived object.

[0328] Perceived object type: Classify the perceived object according to its possible motion characteristics. Each perceived object type contains information such as the motion speed range, motion acceleration range, and typical RCS range of typical perceived objects.

[0329] Number of perceived targets; for example, as a kind of prior perception information, the perception result of the camera can obtain the number of perceived targets.

[0330] For example Figure 3 Among them, paths 0, 1, 2, and 3 are paths in the first path set. Among them, paths 2 and 3 are perceived paths that meet the first condition (for example, their time delays meet the preset threshold), and paths 0 and 1 are paths associated with other scatterers.

[0331] For frequency range 1, the reference point of the first indicator can be the antenna connector of the receiving device such as the terminal. For frequency range 1, if the receiving device has multiple receiving channels, the first indicator measured and reported by the receiving device cannot be lower than the indicator of any single receiving channel. For frequency range 2, the first indicator measured by a certain receiving channel needs to be measured from the combined signals on multiple antenna units corresponding to this receiving channel.

[0332] Another optional calculation method of the first indicator is as follows:

[0333] When calculating the received power of the first target path, it can also be the difference between the power of the first target path in the target dimension and N1P σ avr as the first indicator, where N1 represents the number of the first target paths. N1P σ avr is the average power of multiple paths outside the first path set in the target dimension.

[0334] The calculation method of the received power of the first signal is as follows:

[0335] The received power of the first signal can be that after the receiving device obtains the channel response H(k), it transforms it into the target dimension, determines the first path set in the target dimension, and then calculates the sum of the powers of all paths in the first path set.

[0336] It should be noted that for the calculation of the second index, only the information associated with the first index needs to be replaced with the information associated with the second index. For example, the above first signal can be replaced with the second signal, the first target diameter can be replaced with the second target diameter, and the first index can be replaced with the second index. In addition, for the calculation of the third index, only the information associated with the first index needs to be replaced with the information associated with the third index. For example, the above first signal can be replaced with the third signal, the first target diameter can be replaced with the third target diameter, and the first index can be replaced with the third index.

[0337] Optionally, for the calculation methods of the fourth to tenth indices, the calculation method of the fourth index will be described below, specifically as follows:

[0338] The channel response H(k) is subjected to a first filtering process to obtain H filter1 (k), and then based on H filter1 (k) and the first signal X(k), the received signal Y filter1 after the first filtering process is calculated, that is, Y filter1 (k) = H filter1 (k)X(k). Then the received signal Y(k) is subtracted from the received signal Y filter1 after the first filtering process to obtain the interference and noise signal Y σ1 (k), that is, Y σ1 (k) = Y(k) - Y filter1 (k), and then the fourth index is calculated

[0339] Among them, the first filtering process is used to eliminate the noise, interference, and non-first target paths in the target dimension. For example, the first filtering process sets Figure 3 the amplitude / power / intensity / energy of the paths other than the first target path in filter1 to zero. The channel response H

[0340] after the first filtering process does not contain noise, interference, and non-first target paths, and only contains the first target path.

[0341] It should be noted that for the calculation of the fifth to tenth indices, only the information associated with the fourth index needs to be replaced with the information associated with the fifth to tenth indices, and details will not be elaborated here.

[0342] The channel response H(k) is subjected to a second filtering process to obtain H filter2 (k), and then based on H filter2 (k) and the first signal X(k), the received signal Y filter2(k), that is, Y filter2 (k) = H filter2 (k)X(k). Then subtract the received signal Y filter2 (k) after the second filtering process from the received signal Y(k) to obtain the interference and noise signal Y σ2 (k), that is, Y σ2 (k) = Y(k) - Y filter2 (k), and then calculate the eleventh metric

[0343] The second filtering process can be a noise interference suppression process in the target dimension (for example Figure 3 setting the amplitude / power / intensity / energy of other paths except the first path set to zero), or minimum mean square error (MMSE) filtering. The channel response H filter2 (k) after the second filtering process does not contain noise and interference, and only contains the paths in the first path set.

[0344] Another optional calculation method for the eleventh metric:

[0345] Calculate the eleventh metric P based on the average power of multiple paths outside the first path set in the target dimension σ2 , that is where N represents the number of sampling points in the target dimension.

[0346] Optionally, the above first target metric can be calculated based on the perception measurement quantity and is used to evaluate the perception performance of the second node for the perception area or perception target, including at least one of the following:

[0347] The statistical mean, standard deviation or variance of multiple measurement results of the same perception measurement quantity;

[0348] The deviation between the predicted value and the actual measurement value of the perception measurement quantity / perception result, and the statistical mean, standard deviation or variance of the deviation;

[0349] Ambiguity Function related evaluation metrics, including Normalized Sidelobe Level (NSL), that is, the height of the highest sidelobe of the normalized ambiguity function; or the ratio of the main lobe to the highest sidelobe of the ambiguity function (it can also be the ratio of the highest sidelobe to the main lobe); in addition, it can also include the number of normalized ambiguity function sidelobes / total power / total energy with peaks higher than a given threshold, the main lobe width (3dB width) of the ambiguity function, etc.;

[0350] The Cramér-Rao Lower Bound (CRLB) is the lowest variance that all unbiased estimators can achieve. Mathematically, it is equal to the reciprocal of the Fisher information, and this evaluation metric is related to the perceived SNR.

[0351] The Capacity-Distortion Tradeoff quantitatively gives the maximum achievable rate of reliable transmission of the integrated communication and sensing system under a given distortion constraint.

[0352] The Equivalent-MSE converts the spectral efficiency of communication into an equivalent radar mean square error and is obtained by comprehensive calculation in combination with the perceived Cramér-Rao lower bound.

[0353] The Estimation-Communication Rate regards the sensing channel as a non-cooperative communication channel, and the mutual information between the sensing system and the target is the estimation rate.

[0354] The Welch Bound

[0355] Perceived reproducibility evaluation metrics (such as the sum of the Euclidean distances between two consecutive sequence samples, or the alignment path distance in Dynamic Time Warping (DTW), or other metrics that can reflect the similarity between two sequences, including but not limited to: Longest Common Subsequence (LCSS), Edit Distance on Real Sequences (EDR), Edit Distance with Real Penalty (ERP), Hausdorff Distance, Fréchet Distance, One Way Distance (OWD), Locality In-between Polylines (LIP), etc.).

[0356] The calculation result obtained by performing at least one operation of addition, subtraction, multiplication, or division on at least one of the target metrics, any at least two of the evaluation metrics related to the Ambiguity Function, the Cramér-Rao Lower Bound CRLB, etc.

[0357] Optionally, the second target metric can be calculated based on the sensing measurement quantity and is used to evaluate the communication performance of the backscatter device, including at least one of the following:

[0358] Bit Error Rate (BER) / Block Error Ratio (BLER) of backscatter communication using the first signal of at least one port

[0359] Spectral efficiency of backscatter communication using the first signal of at least one port

[0360] Transmission capacity of backscatter communication using the first signal of at least one port

[0361] Wherein, the backscatter communication is that the backscatter device modulates communication information onto the first signal and reflects it. The first signal modulated and reflected by the backscatter device is received by the second node. The second node detects the first harmonic of the modulated first signal in the target dimension and demodulates the communication information. The communication information includes: communication data information between the backscatter device and the second node, measurement information of a dedicated sensor associated with the backscatter device, and ID information of the backscatter device.

[0362] For a better understanding of the present application, the following will be described in detail through some examples.

[0363] Example 1: As Figure 4 shown, the sensing processing method may include the following processes:

[0364] Step 401, the first node obtains the second information, the third information, and the fourth information (i.e., obtains the target information);

[0365] Step 402, the first node determines the indication information A (i.e., the first indication information determined by the first node based on the target information) and the second configuration information based on the second information, the third information, and the fourth information;

[0366] Step 403, the first node sends the indication information A and the second configuration information to the second node;

[0367] Step 404, the first node sends the first signal;

[0368] Step 405, the second node performs signal processing to obtain the first measurement result corresponding to the first measurement;

[0369] Step 406, the second node sends the first measurement result to the first node.

[0370] It can be understood that the first node in this embodiment may be the first device, and the second node is the second device.[[ID=The ID=41]]

[0371] Example 2: As Figure 5 shown, the sensing processing method may include the following processes:

[0372] Step 501: The first node obtains first information, second information, third information, and fourth information (i.e., obtains target information);

[0373] Step 502: The first node determines indication information A (i.e., first indication information determined by the first node based on the target information) and second configuration information based on the first information, the second information, the third information, and the fourth information.

[0374] Step 503: The first node sends indication information A, first configuration information, and second configuration information to the second node;

[0375] Step 504: The first node sends first configuration information to the reference target;

[0376] Step 505: The first node sends a first signal;

[0377] Step 506, the reference target reflects the first signal;

[0378] Step 507: The second node receives the transmitted first signal and processes the signal to obtain a first measurement result corresponding to the first measurement;

[0379] Step 508: The second node sends the first measurement result to the first node.

[0380] It can be understood that, in this embodiment, the first node may be a first device, and the second node may be a second device.

[0381] Example 3: Figure 6 As shown, the perception processing method may include the following processes:

[0382] Step 601: The second node obtains the second information, the third information, and the fourth information (ie, obtains the target information);

[0383] Step 602: The second node determines indication information B based on the second information, the third information, and the fourth information (i.e., first indication information determined by the second node based on the target information);

[0384] Step 603: The second node sends indication information B to the first node;

[0385] Step 604: The first node determines indication information A (i.e., the second indication information determined by the first node) and the second configuration information. Optionally, before step 604, the first node may further obtain second information, third information, and fourth information for determining the indication information A and the second configuration information.

[0386] Step 605: The first node sends indication information A and second configuration information to the second node;

[0387] Step 606, the first node sends a first signal;

[0388] Step 607, the second node performs signal processing to obtain a first measurement result corresponding to the first measurement;

[0389] Step 608, the second node sends the first measurement result to the first node.

[0390] It can be understood that in this embodiment, the second node can be the first device, and the first node is the second device.

[0391] Embodiment 4: As Figure 7 shown, the sensing processing method may include the following processes:

[0392] Step 701, the second node obtains first information, second information, third information, and fourth information (i.e., obtains target information);

[0393] Step 702, the second node determines indication information B based on the first information, second information, third information, and fourth information (i.e., the first indication information determined by the second node based on the target information);

[0394] Step 703, the second node sends the indication information B to the first node;

[0395] Step 704, the first node determines indication information A (i.e., the second indication information determined by the first node), first configuration information, and second configuration information; optionally, before step 604, the first node may also obtain the second information, third information, and fourth information for determining the indication information A, first configuration information, and second configuration information;

[0396] Step 705, the first node sends the indication information A and the second configuration information to the second node;

[0397] Step 706, the first node sends the first configuration information to the reference target;

[0398] Step 707, the first node sends a first signal;

[0399] Step 708, the reference target reflects the first signal;

[0400] Step 709, the second node receives the transmitted first signal and performs signal processing to obtain a first measurement result corresponding to the first measurement;

[0401] Step 710, the second node sends the first measurement result to the first node.

[0402] It can be understood that in this embodiment, the second node can be the first device, and the first node is the second device.

[0403] Embodiment 5: The difference from Embodiment 1 and Embodiment 2 is that the method for determining indication information A is different. After obtaining the target information, the first node can determine the second target configuration information based on the target information, and the first node and the second node, or the first node, the second node, and the reference target perform the second measurement to obtain the measurement result corresponding to the second measurement. Then, the first node determines indication information A based on the second measurement result, or the first node determines indication information A based on the second measurement result and the target information.

[0404] Embodiment 6: The difference from Embodiment 1 and Embodiment 2 is that the method for determining indication information B is different. After obtaining the target information, the first node can determine the second target configuration information based on the target information, and the first node and the second node, or the first node, the second node, and the reference target perform the second measurement to obtain the measurement result corresponding to the second measurement. Then, the second node determines indication information B based on the second measurement result, or the second node determines indication information B based on the second measurement result and the target information.

[0405] Referring to Figure 8 , an embodiment of the present application further provides a sensing processing method, as Figure 8 shown, the sensing processing method includes:

[0406] Step 801, the second device receives first indication information from the first device, where the first indication information is used to indicate the related information of the multipath, and the related information of the multipath is used to eliminate the sensing non-ideal factors of the first measurement. The first device is the first node, the sensing function network element, or the second node;

[0407] Among them, the sensing non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0408] Among them, when the second device is the second node, the first device is the first node or the sensing function network element. When the second device is the first node or the sensing function network element, the first device is the second node; the first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0409] Optionally, the first indication information is determined based on the target information, and the target information includes at least one of the first information, the second information, the third information, and the fourth information;

[0410] Among them, the first information is the related information of the reference target, the reference target is a reflection object associated with the reference path, the reference path is a path that can be used to eliminate the perceived non-ideal factors, the second information is the related information of the sensing node, the third information is the measurement related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0411] Optionally, when the reference target includes a reconfigurable intelligent surface (RIS) device, the first information includes the signal regulation information of the RIS device.

[0412] Optionally, the signal regulation information of the RIS device includes at least one of the following: RIS signal regulation type, RIS signal forwarding behavior, frequency response characteristic of the RIS signal, manipulation granularity of the RIS signal regulation, size of the RIS unit of the RIS device, cell interval length of the cell array of the RIS unit, scale of the cell array of the RIS unit, speed of state switching of the RIS unit, speed of state switching of the cell array of the RIS unit, grouping state of the cell array of the RIS unit, pre-stored RIS mode set of the RIS device.

[0413] Optionally, the first indication information includes at least one of the following:

[0414] At least one target index, which is used to indicate one path in the multipath of the target dimension;

[0415] Target condition, which is used to represent the range of the target dimension where the reference path is located;

[0416] Target feature, which is used to indicate the feature information of the reference path in the target dimension;

[0417] Target parameter, which is used to indicate the parameter information of the reference path;

[0418] Target processing method, which is used to indicate the signal processing method used by the receiver of the first indication information when determining the reference path;

[0419] At least part of the content of the first information;

[0420] At least part of the content of the second information;

[0421] Among them, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension and elevation angle dimension.

[0422] Optionally, when the second device is the second node, the method further includes:

[0423] The second device receives first target configuration information from the first device, where the first target configuration information includes at least one of first configuration information and second configuration information. The first configuration information is used to backscatter a first signal with reference to a target, and the second configuration information is used for the first measurement;

[0424] The second device performs the first measurement based on the first target configuration information;

[0425] The second device determines a first measurement result based on the first measurement and a target reference path, where the target reference path is determined based on the first indication information.

[0426] Optionally, the method further includes:

[0427] The second device sends the first measurement result to at least one of the first node and the sensing function network element.

[0428] Optionally, when the second device is the first node, the method further includes:

[0429] The second device receives second configuration information from the sensing function network element or the second node, where the second configuration information is determined based on target information and is used for the first measurement;

[0430] The second device sends the first signal;

[0431] The second device receives the first measurement result corresponding to the first measurement from the second node.

[0432] Optionally, when the second device is the first node, the method further includes:

[0433] The second device determines second indication information based on the first indication information, where the second indication information is used to indicate relevant information of multipaths, and the relevant information of the multipaths is used to eliminate sensing non-ideal factors of the first measurement;

[0434] The second device sends the second indication information to the second node;

[0435] Wherein, the first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference path, and the target reference path is determined based on the second indication information.

[0436] Optionally, the second indication information includes at least one of the following:

[0437] At least one target index, where the target index is used to indicate one path in the multipaths of a target dimension;

[0438] Target condition, which is used to represent the range of the target dimension where the reference diameter is located;

[0439] Target feature, which is used to indicate the feature information of the reference diameter in the target dimension;

[0440] Target parameter, which is used to indicate the parameter information of the reference diameter;

[0441] Target processing method, which is used to indicate the signal processing method used by the receiver of the second indication information when determining the reference diameter;

[0442] At least part of the content of the first information;

[0443] At least part of the content of the second information;

[0444] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension and elevation angle dimension.

[0445] Optionally, when the second device is the second node, before the second device receives the first indication information from the first device, the method further includes:

[0446] The second device receives second target configuration information from the first device, and the second target configuration information includes at least one of third configuration information and fourth configuration information. The third configuration information is used to backscatter the second signal for the reference target, and the fourth configuration information is used for the second measurement;

[0447] The second device performs the second measurement based on the second target configuration information and obtains a second measurement result corresponding to the second measurement;

[0448] The second device sends the second measurement result corresponding to the second measurement to the first device, and the second measurement result corresponding to the second measurement is used to determine the first indication information.

[0449] Optionally, when the second device is the first node, the method further includes:

[0450] The second device receives fourth configuration information from the sensing functional network element, and the fourth configuration information is used for the second measurement;

[0451] The second device sends a second signal based on the fourth configuration information.

[0452] The perception processing method provided by the embodiments of this application may be executed by a perception processing device. In the embodiments of this application, taking the perception processing device as an example to execute the perception processing method, the perception processing device provided by the embodiments of this application is described.

[0453] Referring to Figure 9 , the embodiments of this application also provide a perception processing device, as Figure 9 shown. The perception processing device 900 includes:

[0454] A first sending module 901, configured to send first indication information from a first device to a second device, where the first indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate the perception non-ideal factors of the first measurement. The first device is a first node, a perception function network element, or a second node;

[0455] Among them, the perception non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0456] Among them, when the first device is a first node or a perception function network element, the second device is a second node; when the first device is a second node, the second device is a first node or a perception function network element. The first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0457] Optionally, the perception processing device further includes:

[0458] An acquisition module, configured to acquire target information, where the target information is used to determine the first indication information, and the target information includes at least one of first information, second information, third information, and fourth information;

[0459] Among them, the first information is the relevant information of a reference target, the reference target is a reflection object associated with a reference path, the reference path is a path that can be used to eliminate the perception non-ideal factors, the second information is the relevant information of a perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

[0460] Optionally, when the reference target includes a reconfigurable intelligent surface (RIS) device, the first information includes the signal regulation information of the RIS device.

[0461] Optionally, the signal regulation information of the RIS device includes at least one of the following: RIS signal regulation type, RIS signal forwarding behavior, frequency response characteristic of the RIS signal, manipulation granularity of the RIS signal regulation, RIS unit size of the RIS device, cell interval length of the RIS unit array, scale of the RIS unit array, speed of RIS unit state switching, speed of RIS unit array state switching, grouping state of the RIS unit array, and pre-stored RIS mode set of the RIS device.

[0462] Optionally, the first indication information includes at least one of the following:

[0463] At least one target index, which is used to indicate one path in the multipath of the target dimension;

[0464] A target condition, which is used to represent the range of the target dimension where the reference path is located;

[0465] A target feature, which is used to indicate the feature information of the reference path in the target dimension;

[0466] A target parameter, which is used to indicate the parameter information of the reference path;

[0467] A target processing method, which is used to indicate the signal processing method used by the receiver of the first indication information when determining the reference path;

[0468] At least part of the content of the first information;

[0469] At least part of the content of the second information;

[0470] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0471] Optionally, when the first device is the first node or the sensing functional network element, the sensing processing device further includes:

[0472] A first execution module, which is used to execute a first operation;

[0473] Wherein, when the first device is the first node, the first operation includes: sending first target configuration information to the second node; sending first configuration information to a reference target;

[0474] When the first device is a sensing functional network element, the first operation includes: sending second configuration information to the first node, sending first target configuration information to the second node; sending first configuration information to the reference target;

[0475] Wherein, the first target configuration information is determined based on target information, and the first target configuration information includes at least one of the first configuration information and the second configuration information. The first configuration information is used to backscatter a first signal with reference to a target, and the second configuration information is used for the first measurement.

[0476] Optionally, when the first device is the first node, the sensing processing device further includes: a first receiving module,

[0477] The first sending module is further configured to send the first signal;

[0478] The first receiving module is configured to receive a first measurement result corresponding to the first measurement from a second device. The first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference path, and the target reference path is determined based on the first indication information.

[0479] Optionally, when the first device is the second node, the sensing processing device further includes:

[0480] A first receiving module, which receives first target configuration information from the second device. The first target configuration information is determined based on at least one of first indication information and target information, and the first target configuration information includes at least one of first configuration information and second configuration information. The first configuration information is used to backscatter a first signal with reference to a target, and the second configuration information is used for the first measurement;

[0481] A first execution module, which is configured to perform the first measurement based on the first target configuration information.

[0482] Optionally, when the first device is the second node, the sensing processing device further includes:

[0483] A first receiving module, which is configured to receive second indication information from the second device. The second indication information is determined based on the first indication information, and the second indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate sensing non-ideal factors of the first measurement.

[0484] Optionally, the second indication information includes at least one of the following:

[0485] At least one target index, which is used to indicate one path in the multipath of the target dimension;

[0486] A target condition, which is used to represent the range of the target dimension where the reference path is located;

[0487] A target feature, which is used to indicate the feature information of a reference diameter in a target dimension;

[0488] A target parameter, which is used to indicate the parameter information of a reference diameter;

[0489] A target processing method, which is used to indicate the signal processing method used by the recipient of the second indication information when determining a reference diameter;

[0490] At least part of the content of the first information;

[0491] At least part of the content of the second information;

[0492] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension and elevation angle dimension.

[0493] Optionally, the sensing processing device further includes:

[0494] A first determination module, configured to determine a first measurement result corresponding to the first measurement based on the first measurement and a target reference diameter, where the target reference diameter is determined based on the second indication information.

[0495] Optionally, when the first device is the first node or a sensing function network element, the sensing processing device further includes:

[0496] A first determination module, configured to determine second target configuration information based on target information, where the second target configuration information includes at least one of third configuration information and fourth configuration information, the third configuration information is used for a reference target to backscatter a second signal, and the fourth configuration information is used for a second measurement; the second signal is used for the second measurement;

[0497] A first execution module, configured to execute a second operation; wherein, when the first device is a sensing function network element, the second operation includes: sending the fourth configuration information to the first node, sending the second target configuration information to the second node; sending the third configuration information to the reference target; when the first device is the first node, the second operation includes: sending the second target configuration information to the second node; sending the third configuration information to the reference target;

[0498] The first determination module is further configured to determine the first indication information based on the second measurement result corresponding to the second measurement;

[0499] The first sending module is further configured to send the first indication information to the second device.

[0500] Optionally, the first determining module is specifically configured to determine the first indication information based on the second measurement result corresponding to the second measurement and the target information.

[0501] Optionally, when the first device is the first node, the sensing processing apparatus further includes: a first receiving module,

[0502] The first sending module is further configured to send a second signal based on the fourth configuration information;

[0503] The first receiving module is configured to receive, from the second device, the second measurement result corresponding to the second measurement, and the second measurement result corresponding to the second measurement is determined based on the second target configuration information.

[0504] Referring to Figure 10 , an embodiment of the present application further provides a sensing processing apparatus, as Figure 10 shown, the sensing processing apparatus 1000 includes:

[0505] A second receiving module 1001, configured to receive, from a first device, a first indication information by a second device, where the first indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate sensing non-ideal factors of a first measurement, and the first device is a first node, a sensing functional network element, or a second node;

[0506] Wherein, the sensing non-ideal factors include at least one of a local oscillator frequency offset, a sampling clock offset, and a random phase between the first node and the second node;

[0507] Wherein, when the second device is the second node, the first device is the first node or a sensing functional network element, and when the second device is the first node or a sensing functional network element, the first device is the second node; the first node is a sending node of a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0508] Optionally, the first indication information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information;

[0509] Wherein, the first information is relevant information of a reference target, the reference target is a reflection object associated with a reference path, the reference path is a path that can be used to eliminate the sensing non-ideal factors, the second information is relevant information of a sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0510] Optionally, when the reference target includes a reconfigurable intelligent surface (RIS) device, the first information includes the signal regulation information of the RIS device.

[0511] Optionally, the signal regulation information of the RIS device includes at least one of the following: RIS signal regulation type, RIS signal forwarding behavior, frequency response characteristic of the RIS signal, manipulation granularity of the RIS signal regulation, size of the RIS unit of the RIS device, cell interval length of the RIS unit array, scale of the RIS unit array, speed of state switching of the RIS unit, speed of state switching of the RIS unit array, grouping state of the RIS unit array, and pre-stored RIS mode set of the RIS device.

[0512] Optionally, the first indication information includes at least one of the following:

[0513] At least one target index, which is used to indicate one path in the multipath of the target dimension;

[0514] A target condition, which is used to represent the range of the target dimension where the reference path is located;

[0515] A target feature, which is used to indicate the feature information of the reference path in the target dimension;

[0516] A target parameter, which is used to indicate the parameter information of the reference path;

[0517] A target processing method, which is used to indicate the signal processing method used by the receiver of the first indication information when determining the reference path;

[0518] At least part of the content of the first information;

[0519] At least part of the content of the second information;

[0520] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0521] Optionally, when the second device is the second node, the sensing and processing device further includes: a second execution module and a second determination module.

[0522] The second receiving module is further configured to receive first target configuration information from the first device, where the first target configuration information includes at least one of the first configuration information and the second configuration information, the first configuration information is used for the reference target to backscatter the first signal, and the second configuration information is used for the first measurement.

[0523] The second execution module is configured to perform the first measurement based on the first target configuration information;

[0524] The second determination module is configured to determine a first measurement result based on the first measurement and a target reference diameter, where the target reference diameter is determined based on the first indication information.

[0525] Optionally, the perception processing device further includes:

[0526] A second sending module, configured to send the first measurement result to at least one of the first node and the perception functional network element.

[0527] Optionally, when the second device is the first node, the perception processing device further includes: a second sending module,

[0528] The second receiving module is further configured to receive second configuration information from the perception functional network element or the second node, where the second configuration information is determined based on target information and is used for the first measurement;

[0529] The second sending module is configured to send the first signal;

[0530] The second receiving module is further configured to receive the first measurement result corresponding to the first measurement from the second node.

[0531] Optionally, when the second device is the first node, the perception processing device further includes:

[0532] A second determination module, configured to determine second indication information based on the first indication information, where the second indication information is used to indicate relevant information of multipath, and the relevant information of multipath is used to eliminate perception non-ideal factors of the first measurement;

[0533] A second sending module, configured to send the second indication information to the second node;

[0534] Wherein, the first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference diameter, and the target reference diameter is determined based on the second indication information.

[0535] Optionally, the second indication information includes at least one of the following:

[0536] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0537] A target condition, where the target condition is used to represent the range of the target dimension where the reference diameter is located;

[0538] A target feature, where the target feature is used to indicate the feature information of the reference diameter in the target dimension;

[0539] A target parameter, which is used to indicate parameter information of a reference diameter;

[0540] A target processing method, which is used to indicate a signal processing method used by a recipient of second indication information when determining a reference diameter;

[0541] At least part of the content of the first information;

[0542] At least part of the content of the second information;

[0543] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension and elevation angle dimension.

[0544] Optionally, when the second device is the first node, the sensing processing device further includes: a second sending module,

[0545] The second receiving module 1001 is further configured to receive fourth configuration information from a sensing functional network element, and the fourth configuration information is used for second measurement;

[0546] The second sending module is configured to send a second signal based on the fourth configuration information.

[0547] The sensing processing device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0548] The sensing processing device provided in the embodiments of the present application can implement Figures 2 to 8 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0549] As Figure 11 shown, the embodiments of the present application further provide a communication device 1100, including a processor 1101 and a memory 1102. A program or instruction that can run on the processor 1101 is stored on the memory 1102. For example, when the communication device 1100 is a terminal or a network-side device, when the program or instruction is executed by the processor 1101, it implements each step of the above-mentioned sensing processing method embodiments and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0550] The embodiments of the present application further provide a terminal, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiments as shown in Figure 2 or Figure 8. This terminal embodiment corresponds to the above first device-side method embodiment or the above second device-side method embodiment. Each implementation process and implementation manner of the above method embodiments can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 12 It is a schematic hardware structure diagram of a terminal according to an embodiment of the present application.

[0551] The terminal 1200 includes, but is not limited to, at least some components such as a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210.

[0552] Those skilled in the art can understand that the terminal 1200 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 1210 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 12 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0553] It should be understood that in the embodiments of the present application, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042. The graphics processor 12041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1207 includes at least one of a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts: a touch detection device and a touch controller. The other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0554] In an embodiment of this application, after receiving downlink data from a network-side device, the radio frequency unit 1201 can transmit it to the processor 1210 for processing; in addition, the radio frequency unit 1201 can send uplink data to the network-side device. Generally, the radio frequency unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0555] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1209 can include a volatile memory or a non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 1209 in the embodiment of this application includes, but is not limited to, these and any other suitable types of memories.

[0556] The processor 1210 can include one or more processing units; optionally, the processor 1210 integrates an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modulation and demodulation processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 1210.

[0557] Wherein, when the terminal is the first device, the radio frequency unit 1201 is configured to send first indication information from the first device to the second device, where the first indication information is used to indicate information related to multipath, and the information related to multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is the first node, the sensing function network element, or the second node;

[0558] Wherein, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0559] Wherein, when the first device is the first node, the second device is the second node; when the first device is the second node, the second device is the first node or the sensing function network element. The first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0560] When the terminal is the second device, the radio frequency unit 1201, and the second device receives the first indication information from the first device, where the first indication information is used to indicate information related to multipath, and the information related to multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is the first node, the sensing function network element, or the second node;

[0561] Wherein, the perceived non-ideal factors include at least one of the local oscillator frequency offset, sampling clock offset, and random phase between the first node and the second node;

[0562] Wherein, when the first device is the first node or the sensing function network element, the second device is the second node; when the first device is the second node, the second device is the first node. The first node is the sending node of the first signal for the first measurement, and the second node is the receiving node of the first signal for the first measurement.

[0563] It can be understood that the implementation processes of the implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0564] This application embodiment further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method embodiment as Figures 2 to 8 shown. This network-side device embodiment corresponds to the above first device-side method embodiment or the above second device-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this network-side device embodiment and can achieve the same technical effects.

[0565] Specifically, an embodiment of the present application further provides a network-side device. As Figure 13 shown, the network-side device 1300 includes: an antenna 1301, a radio frequency device 1302, a baseband device 1303, a processor 1304, and a memory 1305. The antenna 1301 is connected to the radio frequency device 1302. In the uplink direction, the radio frequency device 1302 receives information through the antenna 1301 and sends the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302. After processing the received information, the radio frequency device 1302 sends it out through the antenna 1301.

[0566] In the above embodiments, the methods executed by the first device or the second device can be implemented in the baseband device 1303, and the baseband device 1303 includes a baseband processor.

[0567] The baseband device 1303 may, for example, include at least one baseband board, and multiple chips are provided on the baseband board. As Figure 13 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1305 through a bus interface to call the program in the memory 1305 and execute the operations of the first device or the second device shown in the above method embodiments.

[0568] The network-side device may further include a network interface 1306, and the interface is, for example, a Common Public Radio Interface (CPRI).

[0569] Specifically, the network-side device 1300 of the embodiment of the present application further includes: instructions or programs stored on the memory 1305 and executable on the processor 1304. The processor 1304 calls the instructions or programs in the memory 1305 to execute Figure 9 the methods executed by the modules shown in 9 or 10 and achieve the same technical effects. To avoid repetition, they are not described here again.

[0570] Specifically, an embodiment of the present application further provides a network-side device. As Figure 14 shown, the network-side device 1400 includes: a processor 1401, a network interface 1402, and a memory 1403. Among them, the network interface 1402 is, for example, a Common Public Radio Interface (CPRI).

[0571] Specifically, the network-side device 1400 of the embodiment of the present application further includes: instructions or programs stored on the memory 1403 and executable on the processor 1401. The processor 1401 calls the instructions or programs in the memory 1403 to executeFigure 9 or Figure 10 The methods executed by the modules shown above achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0572] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-described perception processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0573] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0574] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement each process of the above-described perception processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0575] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system chip, a chip system, or a system-on-a-chip, etc.

[0576] The embodiments of the present application further provide a computer program / program product, which includes computer instructions. When the computer program / program product is executed by at least one processor, it implements each process of the above-described perception processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0577] The embodiments of the present application further provide a wireless communication system, including: a first device and a second device. The first device can be used to execute the steps of the perception processing method on the first device side as described above, and the second device can be used to execute the steps of the perception processing method on the second device side as described above.

[0578] It should be noted that in this text, the term "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0579] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0580] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A perception processing method, characterized in that: include: A first device sends first indication information to a second device, where the first indication information is used to indicate multipath related information, where the multipath related information is used to eliminate a perception non-ideal factor in the first measurement, where the first device is a first node, a perception function network element, or a second node. The perceived non-ideal factor includes at least one of a local oscillator frequency offset, a sampling clock offset, and a random phase between the first node and the second node; In which, when the first device is a first node or a perception function network element, the second device is a second node; when the first device is a second node, the second device is a first node or a perception function network element; the first node is a sending node of the first signal used for the first measurement, and the second node is a receiving node of the first signal used for the first measurement.

2. The method according to claim 1, characterized in that The method further comprises: The first device acquires target information, where the target information is used to determine the first indication information, and the target information includes at least one of the first information, the second information, the third information, and the fourth information; The first information is information related to a reference target, the reference target is a reflective object associated with a reference path, the reference path is a path that can be used to eliminate the perception non-ideal factors, the second information is information related to the perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

3. The method according to claim 1 or 2, characterized in that The first indication information includes at least one of the following: At least one target index, where the target index is used to indicate one path in the multipath of the target dimension; Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located; Target features, where the target features are used to indicate feature information of the reference path in the target dimension; Target parameters, where the target parameters are used to indicate parameter information of the reference path; a target processing method, the target processing method being used to indicate a signal processing method used by a recipient of the first indication information when determining a reference path; at least part of the first information; at least part of the second information; The target dimension includes any one of the following: power dimension; delay dimension; Doppler dimension; azimuth dimension; elevation angle dimension, or a combined dimension consisting of at least two of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation angle dimension.

4. The method according to any one of claims 1 to 3, characterized in that In a case where the first device is the first node or a perception function network element, the method further includes: The first device performs a first operation; Wherein, in the case where the first device is the first node, the first operation includes: sending first target configuration information to the second node; sending first configuration information to a reference target; In the case where the first device is a perception function network element, the first operation includes: sending second configuration information to the first node, sending first target configuration information to the second node; and sending first configuration information to the reference target; The first target configuration information is determined based on target information, and the first target configuration information includes at least one of the first configuration information and the second configuration information, the first configuration information is used to backscatter the first signal with reference to the target, and the second configuration information is used for the first measurement.

5. The method according to any one of claims 1 to 4, characterized in that In a case where the first device is the first node, after the first device sends the first indication information to the second device, the method further includes: The first device sends the first signal; The first device receives a first measurement result corresponding to the first measurement from the second device, where the first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference path, and the target reference path is determined based on the first indication information.

6. The method according to any one of claims 1 to 3, characterized in that In the case where the first device is a second node, the method further includes: The first device receives first target configuration information from the second device, where the first target configuration information is determined based on at least one of first indication information and target information, and the first target configuration information includes at least one of first configuration information and second configuration information, the first configuration information is used to backscatter the first signal with reference to a target, and the second configuration information is used for the first measurement; The first device performs the first measurement based on the first target configuration information.

7. The method according to claim 1, 3 or 6, characterized in that In the case where the first device is a second node, the method further includes: The first device receives second indication information from the second device, where the second indication information is determined based on the first indication information, and the second indication information is used to indicate multipath related information, where the multipath related information is used to eliminate perceived non-ideal factors of the first measurement.

8. The method according to claim 7, characterized in that The second indication information includes at least one of the following: At least one target index, where the target index is used to indicate one path in the multipath of the target dimension; Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located; Target features, where the target features are used to indicate feature information of the reference path in the target dimension; Target parameters, where the target parameters are used to indicate parameter information of the reference path; a target processing method, the target processing method being used to indicate a signal processing method used by a recipient of the second indication information when determining a reference path; at least part of the first information; at least part of the second information; The target dimension includes any one of the following: power dimension; delay dimension; Doppler dimension; azimuth dimension; elevation angle dimension, or a combined dimension consisting of at least two of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation angle dimension.

9. The method according to claim 8, characterized in that After the first device receives the second indication information from the second device, the method further includes: The first device determines a first measurement result corresponding to the first measurement based on the first measurement and a target reference path, and the target reference path is determined based on the second indication information.

10. The method according to any one of claims 1 to 5, characterized in that When the first device is the first node or the perception function network element, the first device sending the first indication information to the second device includes: The first device determines second target configuration information based on the target information, where the second target configuration information includes at least one of third configuration information and fourth configuration information, the third configuration information is used to backscatter the second signal with reference to the target, and the fourth configuration information is used for the second measurement; the second signal is used for the second measurement; The first device performs a second operation; wherein, when the first device is a perception function network element, the second operation includes: sending the fourth configuration information to the first node, sending the second target configuration information to the second node; and sending the third configuration information to the reference target; when the first device is the first node, the second operation includes: sending the second target configuration information to the second node; and sending the third configuration information to the reference target; The first device determines the first indication information based on a second measurement result corresponding to the second measurement; The first device sends the first indication information to the second device.

11. The method according to claim 10, characterized in that The first device determining the first indication information based on the second measurement result corresponding to the second measurement includes: The first device determines the first indication information based on a second measurement result corresponding to the second measurement and the target information.

12. The method according to claim 10, characterized in that In a case where the first device is the first node, the method further includes: The first device sends a second signal based on the fourth configuration information; The first device receives a second measurement result corresponding to the second measurement from the second device, where the second measurement result corresponding to the second measurement is determined based on the second target configuration information.

13. The method according to claim 1, 3, 6 or 8, characterized in that In a case where the first device is the second node, before the first device sends the first indication information to the second device, the method further includes: The first device receives second target configuration information from the second device, where the second target configuration information is determined based on at least one of the first indication information and target information, and the second target configuration information includes at least one of the first configuration information and the second configuration information, the first configuration information is used to backscatter the first signal with reference to the target, and the second configuration information is used for the second measurement; The first device performs a second measurement based on the second target configuration information to obtain a second measurement result; The first device determines first indication information based on the second measurement result and the target information; The first device sends first indication information to the second device.

14. The method according to claim 2, characterized in that In a case where the reference target includes a reconfigurable smart surface (RIS) device, the first information includes signal control information of the RIS device.

15. The method according to claim 14, characterized in that The signal control information of the RIS device includes at least one of the following: RIS signal control type, RIS signal forwarding behavior, frequency response characteristics of the RIS signal, control granularity of RIS signal control, RIS unit size of the RIS device, unit interval length of the RIS unit array, scale of the RIS unit array, speed of RIS unit state switching, speed of RIS unit array state switching, grouping state of the RIS unit array, and a pre-stored RIS mode set of the RIS device.

16. A perception processing method, characterized in that: include: The second device receives first indication information from the first device, where the first indication information is used to indicate relevant information about multipath, where the relevant information about multipath is used to eliminate a perception non-ideal factor in the first measurement, where the first device is a first node, a perception function network element, or a second node. The perceived non-ideal factor includes at least one of a local oscillator frequency offset, a sampling clock offset, and a random phase between the first node and the second node; In which, when the second device is a second node, the first device is a first node or a perception function network element; when the second device is a first node or a perception function network element, the first device is a second node; the first node is a sending node of the first signal used for the first measurement, and the second node is a receiving node of the first signal used for the first measurement.

17. The method according to claim 16, characterized in that The first indication information is determined based on target information, where the target information includes at least one of first information, second information, third information, and fourth information; The first information is information related to a reference target, the reference target is a reflective object associated with a reference path, the reference path is a path that can be used to eliminate the perception non-ideal factors, the second information is information related to the perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

18. The method according to claim 16 or 17, characterized in that The first indication information includes at least one of the following: At least one target index, where the target index is used to indicate one path in the multipath of the target dimension; Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located; Target features, where the target features are used to indicate feature information of the reference path in the target dimension; Target parameters, where the target parameters are used to indicate parameter information of the reference path; a target processing method, the target processing method being used to indicate a signal processing method used by a recipient of the first indication information when determining a reference path; at least part of the first information; at least part of the second information; The target dimension includes any one of the following: power dimension; delay dimension; Doppler dimension; azimuth dimension; elevation angle dimension, or a combined dimension consisting of at least two of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation angle dimension.

19. The method according to any one of claims 16 to 18, characterized in that In a case where the second device is the second node, the method further includes: The second device receives first target configuration information from the first device, where the first target configuration information includes at least one of first configuration information and second configuration information, the first configuration information is used to backscatter the first signal with reference to a target, and the second configuration information is used for the first measurement; The second device performs the first measurement based on the first target configuration information; The second device determines a first measurement result based on the first measurement and a target reference path, where the target reference path is determined based on the first indication information.

20. The method according to claim 19, characterized in that The method further comprises: The second device sends the first measurement result to at least one of the first node and the perception function network element.

21. The method according to any one of claims 16 to 18, characterized in that In a case where the second device is the first node, the method further includes: The second device receives second configuration information from the perception function network element or the second node, where the second configuration information is determined based on target information and is used for the first measurement; The second device sends the first signal; The second device receives a first measurement result corresponding to the first measurement from the second node.

22. The method according to claim 16, 18 or 20, characterized in that In a case where the second device is the first node, the method further includes: The second device determines second indication information based on the first indication information, where the second indication information is used to indicate relevant information of the multipath, and the relevant information of the multipath is used to eliminate a perceived non-ideal factor of the first measurement; The second device sends second indication information to the second node; The first measurement result corresponding to the first measurement is determined based on the first measurement and a target reference path, and the target reference path is determined based on the second indication information.

23. The method according to claim 22, characterized in that The second indication information includes at least one of the following: At least one target index, where the target index is used to indicate one path in the multipath of the target dimension; Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located; Target features, where the target features are used to indicate feature information of the reference path in the target dimension; Target parameters, where the target parameters are used to indicate parameter information of the reference path; a target processing method, the target processing method being used to indicate a signal processing method used by a recipient of the second indication information when determining a reference path; at least part of the first information; at least part of the second information; The target dimension includes any one of the following: power dimension; delay dimension; Doppler dimension; azimuth dimension; elevation angle dimension, or a combined dimension consisting of at least two of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation angle dimension.

24. The method according to any one of claims 16 to 20, characterized in that In a case where the second device is a second node, before the second device receives the first indication information from the first device, the method further includes: The second device receives second target configuration information from the first device, where the second target configuration information includes at least one of third configuration information and fourth configuration information, where the third configuration information is used to backscatter the second signal with reference to the target, and the fourth configuration information is used for the second measurement; The second device performs the second measurement based on the second target configuration information, and obtains a second measurement result corresponding to the second measurement; The second device sends a second measurement result corresponding to the second measurement to the first device, where the second measurement result corresponding to the second measurement is used to determine the first indication information.

25. The method according to claim 16, 18 or 21, characterized in that In a case where the second device is the first node, the method further includes: The second device receives fourth configuration information from the perception function network element, where the fourth configuration information is used for the second measurement; The second device sends a second signal based on the fourth configuration information.

26. The method according to claim 17, wherein In a case where the reference target includes a reconfigurable smart surface (RIS) device, the first information includes signal control information of the RIS device.

27. The method according to claim 26, characterized in that The signal control information of the RIS device includes at least one of the following: RIS signal control type, RIS signal forwarding behavior, frequency response characteristics of the RIS signal, control granularity of RIS signal control, RIS unit size of the RIS device, unit interval length of the RIS unit array, scale of the RIS unit array, speed of RIS unit state switching, speed of RIS unit array state switching, grouping state of the RIS unit array, and a pre-stored RIS mode set of the RIS device.

28. A perception processing device, characterized in that: include: A first sending module, configured for a first device to send first indication information to a second device, where the first indication information is used to indicate multipath related information, where the multipath related information is used to eliminate a perception non-ideal factor in the first measurement, where the first device is a first node, a perception function network element, or a second node; The perceived non-ideal factor includes at least one of a local oscillator frequency offset, a sampling clock offset, and a random phase between the first node and the second node; In which, when the first device is a first node or a perception function network element, the second device is a second node; when the first device is a second node, the second device is a first node or a perception function network element; the first node is a sending node of the first signal used for the first measurement, and the second node is a receiving node of the first signal used for the first measurement.

29. The perception processing device according to claim 28, characterized in that The perception processing device also includes: an acquisition module, configured to acquire target information, wherein the target information is used to determine the first indication information, and the target information includes at least one of the first information, the second information, the third information, and the fourth information; The first information is information related to a reference target, the reference target is a reflective object associated with a reference path, the reference path is a path that can be used to eliminate the perception non-ideal factors, the second information is information related to the perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

30. The sensory processing device according to claim 28, characterized in that In the case where the first device is the first node or the perception function network element, the perception processing device further includes: A first execution module, configured to execute a first operation; Wherein, in the case where the first device is the first node, the first operation includes: sending first target configuration information to the second node; sending first configuration information to a reference target; In the case where the first device is a perception function network element, the first operation includes: sending second configuration information to the first node, sending first target configuration information to the second node; and sending first configuration information to the reference target; The first target configuration information is determined based on target information, and the first target configuration information includes at least one of the first configuration information and the second configuration information, the first configuration information is used to backscatter the first signal with reference to the target, and the second configuration information is used for the first measurement.

31. The sensory processing device according to claim 28, characterized in that In the case where the first device is a second node, the perception processing device further includes: The first receiving module is used to receive second indication information from the second device, where the second indication information is determined based on the first indication information, and the second indication information is used to indicate relevant information of the multipath, where the relevant information of the multipath is used to eliminate the perceived non-ideal factors of the first measurement.

32. A perception processing device, characterized in that: include: a second receiving module, configured for a second device to receive first indication information from a first device, where the first indication information is used to indicate multipath related information, where the multipath related information is used to eliminate a perception non-ideal factor in the first measurement, where the first device is a first node, a perception function network element, or a second node; The perceived non-ideal factor includes at least one of a local oscillator frequency offset, a sampling clock offset, and a random phase between the first node and the second node; In which, when the second device is a second node, the first device is a first node or a perception function network element; when the second device is a first node or a perception function network element, the first device is a second node; the first node is a sending node of the first signal used for the first measurement, and the second node is a receiving node of the first signal used for the first measurement.

33. The sensory processing device according to claim 32, characterized in that In the case where the second device is the second node, the perception processing apparatus further includes: a second execution module and a second determination module, The second receiving module is further configured to receive first target configuration information from the first device, the first target configuration information including at least one of first configuration information and second configuration information, the first configuration information being used to backscatter the first signal with reference to a target, and the second configuration information being used for the first measurement; The second execution module is configured to perform the first measurement based on the first target configuration information; The second determination module is configured to determine a first measurement result based on the first measurement and a target reference path, where the target reference path is determined based on the first indication information.

34. The sensory processing device according to claim 32, characterized in that In the case where the second device is the first node, the perception processing apparatus further includes: a second sending module, The second receiving module is further configured to receive second configuration information from the perception function network element or the second node, where the second configuration information is determined based on target information and is used for the first measurement; The second sending module is used to send the first signal; The second receiving module is further configured to receive a first measurement result corresponding to the first measurement from the second node.

35. A terminal, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the perception processing method according to any one of claims 1 to 27.

36. A network side device, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the perception processing method according to any one of claims 1 to 27.

37. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the perception processing method according to any one of claims 1 to 27 are implemented.

38. A computer program product, characterized in that The method comprises computer instructions, which, when executed by a processor, implement the steps of the perception processing method according to any one of claims 1 to 27.

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