Sensing processing method and apparatus, and terminal and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a sensing processing method and apparatus, and a terminal and a network-side device. The sensing processing method in the embodiments of the present application comprises: a first device sending first indication information to a second device, wherein the first indication information is used for indicating multipath-related information, the multipath-related information is used for eliminating a sensing non-ideal factor of first measurement, and the first device is a first node, a sensing function network element or a second node; the sensing non-ideal factor comprises at least one of a local oscillation 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 the 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 the sensing function network element; and 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

Perception processing method, device, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410164298.3 filed in China on February 5, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a perception processing method, apparatus, terminal and network-side equipment. Background Art

[0004] With the advancement of communication technology, passive object measurement and perception can now be performed in communication systems based on sensing signals or integrated synaesthesia signals. Currently, when device A transmits and device B receives, perception non-ideal factors such as sampling clock offset, local oscillator frequency offset, and random phase may exist. An effective solution is to construct a reference path using passive reference targets, backscatter devices, or smart reflective surfaces to eliminate the impact of perception non-ideal factors. Currently, the default reference path is commonly used to eliminate the impact of perception non-ideal factors. However, the default perception reference path cannot adapt to complex wireless network environments, resulting in poor elimination of perception non-ideal factors, reduced perception performance, or even inability to perform perception. Summary of the Invention

[0005] The embodiments of the present application provide a perception processing method, apparatus, terminal, and network-side equipment, which can solve the problem of eliminating the influence of non-ideal factors in perception.

[0006] In a first aspect, a perception processing method is provided, comprising:

[0007] 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.

[0008] 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;

[0009] 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.

[0010] In a second aspect, a perception processing method is provided, comprising:

[0011] 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.

[0012] 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;

[0013] 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.

[0014] In a third aspect, a perception processing device is provided, comprising:

[0015] 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;

[0016] 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;

[0017] 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.

[0018] In a fourth aspect, a perception processing device is provided, comprising:

[0019] 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;

[0020] 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;

[0021] 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.

[0022] In a fifth aspect, a terminal is provided, which includes a processor and a memory, wherein 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, 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.

[0023] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein:

[0024] When the terminal is a first device, the communication interface is used by the first device to send first indication information to the second device, where the first indication information is used to indicate multipath related information, and the multipath related information is used to eliminate a perceived non-ideal factor of the first measurement. The first device is a first node, a perception function network element, or a second node; wherein 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; 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 a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement;

[0025] When the terminal is a second device, the communication interface second device receives first indication information from the first device, where the first indication information is used to indicate relevant information of the multipath, and the relevant information of the multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is a first node, a perception function network element or a second node; wherein the perceived non-ideal factors include at least one of the local oscillator frequency offset, the sampling clock offset, and the 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 perception function network element, and 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 for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0026] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and 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.

[0027] In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein:

[0028] When the network-side device is a first device, the communication interface is used by the first device to send first indication information to the second device, where the first indication information is used to indicate multipath-related information, and the multipath-related information is used to eliminate a perceived non-ideal factor of the first measurement. The first device is a first node, a perception function network element, or a second node; wherein 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; 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 a first signal for the first measurement, and the second node is a receiving node of the first signal for the first measurement;

[0029] When the network side device is a second device, the communication interface second device receives first indication information from the first device, where the first indication information is used to indicate relevant information of the multipath, and the relevant information of the multipath is used to eliminate the perceived non-ideal factors of the first measurement. The first device is a first node, a perception function network element or a second node; wherein the perceived non-ideal factors include at least one of the local oscillator frequency offset, the sampling clock offset, and the 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 perception function network element, and 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 for the first measurement, and the second node is a receiving node of the first signal for the first measurement.

[0030] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is 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.

[0031] In the tenth aspect, a wireless communication system is provided, comprising: a first device and a second device, wherein 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.

[0032] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0033] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product includes computer instructions, and the computer program / program product is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0034] 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 multipath-related information, and the multipath-related information is used to eliminate perceptual non-ideal factors in a first measurement. The first device is a first node, a perception function network element, or a second node. The perceptual 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. 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 for a first signal used for the first measurement, and the second node is a receiving node for the first signal used for the first measurement. In this way, by sending the first indication information through the first device, a reference path for eliminating perceptual non-ideal factors in the first measurement can be flexibly determined based on the first indication information, thereby improving the effectiveness of eliminating perceptual non-ideal factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0036] FIG2 is a flowchart of a perception processing method provided by the present application;

[0037] FIG3 is a schematic diagram of multipath of a channel response in a first dimension in a perception processing method provided by the present application;

[0038] FIG4 is a second flowchart of a perception processing method provided by the present application;

[0039] FIG5 is a third flowchart of a perception processing method provided by the present application;

[0040] FIG6 is a fourth flowchart of a perception processing method provided by the present application;

[0041] FIG7 is a fifth flowchart of a perception processing method provided by the present application;

[0042] FIG8 is a sixth flowchart of a perception processing method provided by the present application;

[0043] FIG9 is a schematic structural diagram of a perception processing device provided by the present application;

[0044] FIG10 is a schematic diagram of the structure of another perception processing device provided by the present application;

[0045] FIG11 is a schematic structural diagram of a communication device provided by the present application;

[0046] FIG12 is a schematic structural diagram of a terminal provided by the present application;

[0047] FIG13 is a schematic structural diagram of a network side device provided by the present application;

[0048] FIG14 is a schematic structural diagram of another network-side device provided in this application. DETAILED DESCRIPTION

[0049] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0050] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0051] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but 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 the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0052] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (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 (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may 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 can 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0053] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0054] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0055] Integrated Sensing and Communication (ISAC), wireless communications, and radar sensing (C&S) have been developing in parallel, but with limited overlap. They share many commonalities in signal processing algorithms, equipment, and, to a certain extent, system architecture. In recent years, traditional radar has been moving towards the more general wireless sensing approach. Wireless sensing broadly refers to the retrieval of information from received radio signals. For wireless sensing related to target location, common signal processing methods can be used to estimate dynamic parameters such as target signal reflection delay, angle of arrival, angle of departure, and Doppler. For sensing the physical characteristics of a target, this can be achieved by measuring the inherent signal patterns of the device / object / activity. These two sensing approaches can be referred to as perception parameter estimation and pattern recognition, respectively. In this sense, wireless sensing refers to more general sensing technologies and applications using radio signals.

[0056] Communication and perception integration, also known as synaesthesia integration, has the potential to integrate wireless sensing into mobile networks, referred to here as perceptive mobile networks (PMNs). Perceptive mobile networks can simultaneously provide communication and wireless sensing services, and due to their wide broadband coverage and robust infrastructure, they are expected to become a ubiquitous wireless sensing solution. Perceptive mobile networks can be widely used for communication and sensing in transportation, communications, energy, precision agriculture, and security. They can also provide complementary sensing capabilities to existing sensor networks, with unique day and night operation capabilities and the ability to penetrate fog, foliage, and even solid objects.

[0057] In a mobile communication network, a base station (including one or more transmission reception points (TRP) on the base station) and a user equipment (UE) (including one or more subarrays or panels on the UE) can serve as perception nodes participating in perception or synaesthesia integration services. Typical UEs include mobile terminals, portable tablets, etc. By sending and receiving a first signal between nodes, perception of a certain area or a certain physical target can be achieved. The first signal can be a signal that does not contain transmission information, such as an LTE / NR synchronization and reference signal, including a synchronization signal and a physical broadcast channel (Synchronization Signal and PBCH block, SSB) signal, a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), a demodulation reference signal (DMRS), a channel sounding reference signal (Sounding Reference Signal, SRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc.; it can also be a single-frequency continuous wave (Continuous The new signal can be a frequency modulated continuous wave (CW), frequency modulated continuous wave (FMCW), or ultra-wideband Gaussian pulse. It can also be a newly designed dedicated signal with good correlation characteristics and a low peak-to-average power ratio, or a newly designed integrated synaesthesia signal that carries certain information while also having good perception performance. For example, the new signal can be a splicing, combination, or superposition of at least one dedicated perception signal or reference signal and at least one communication signal in the time or frequency domain.

[0058] A node that sends or receives a sensing signal is called a participating sensing node (or sensing node). A sensing node can be a base station or a user equipment terminal (UE). The device that determines the sensing node after handover and the sensing method of the sensing node after handover can be a base station, a user equipment terminal (UE), or a device in the core network, such as a sensing function (SF), an access and mobility management function (AMF), or a sensing application server in the core network.

[0059] Furthermore, the node that sends the first signal is called a first node, and the node that receives the first signal is called a second node.

[0060] Furthermore, after receiving the first signal, the second node can obtain the multipath of the first signal, which is transmitted from the first node, propagated through the wireless environment, and ultimately reached the second node through signal processing. Among these multipaths, the multipath used to eliminate non-ideal factors in perception is called the reference path. Some parameters of the reference path, including delay, Doppler frequency, angle, etc., may be known in advance or can be obtained through some known information. However, due to non-ideal factors between the first node and the second node, the parameter measurement value of the reference path actually obtained by the second node deviates from the expected value. This deviation is the value that requires calibration of the perception measurement value or perception result.

[0061] For example, assuming that the first node and the second node are both in a stationary state, and the reflecting object corresponding to the reference path is also in a stationary state, the expected Doppler frequency of the reference path is 0 Hz. If the actual 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 f into the measured value or the perception result of the perception measurement quantity. d The measurement error of Hz needs to be corrected. For example, if the first node and the second node are relatively stationary and there is a Line of Sight (LOS) path, the LOS path is used as the reference path and the straight-line distance between the first node and the second node is known, the expected time delay of the reference path can be inferred to be τ ref If the actual 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 τ′-τ into the measured value or the perception result of the sensing measurement quantity. ref The measurement error of ns needs to be corrected.

[0062] It should be noted that the accuracy of obtaining the parameters of the reference path determines the effectiveness of eliminating perceptual non-ideal factors. 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-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 changes in the wireless environment, the signal-to-noise ratio of the reference path may not remain stable. In addition, when the wireless environment is rich in multipath, other non-reference paths may cause strong interference to the reference path. The above uncertainties will lead to a decrease in the performance of the reference path parameter estimation, and thus a decrease in the performance of eliminating perceptual non-ideal factors.

[0063] Therefore, the network must assist sensing nodes in selecting reference paths based on the environmental and network information it possesses. Furthermore, due to changes in the wireless environment and / or the movement or change of sensing nodes, the network may need to switch the previously selected reference path and select a multipath that better eliminates non-ideal sensing factors.

[0064] After the reference path is selected, 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. The reference target includes at least one of the following: a passive target with at least one precisely known sensory measurement quantity, 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), or a reconfigurable intelligent surface (RIS). The target dimension includes any of the following: power dimension; delay dimension; Doppler dimension; azimuth dimension; elevation dimension, or a combined dimension consisting of at least two of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation dimension.

[0065] The following describes in detail the perception processing method provided in the embodiments of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

[0066] 2 , an embodiment of the present application provides a perception processing method. As shown in FIG2 , the perception processing method includes:

[0067] Step 201: 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 perception non-ideal factors in a first measurement. The first device is a first node, a perception function network element, or a second node.

[0068] 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;

[0069] 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.

[0070] In an embodiment of the present application, the first indication information can be determined by the first device and then sent to the second device, so that the target reference path can be determined based on the first indication information during the first measurement process, thereby eliminating the perceived non-ideal factors of the first measurement and improving the accuracy of the measurement results.

[0071] Optionally, the first indication information may be determined by the first node, the second node, or the perception function network element, and then the first indication information may be sent to other corresponding devices. For example, the first indication information may be determined by the first node or the perception function network element, and the first indication information may be sent to the second node. In this case, the second node may directly use the first indication information to eliminate the perception non-ideal factors in the first measurement. The first indication information may also be determined by the second node, and then the first indication information may be sent to the first node or the perception function network element. In this case, the second node may use the first indication information to eliminate the perception non-ideal factors in the first measurement, or after receiving feedback from the first node (such as agreeing to use the first indication information), use the first indication information to eliminate the perception non-ideal factors in the first measurement; 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 may use the second indication information to eliminate the perception non-ideal factors in the first measurement.

[0072] 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 multipath-related information, and the multipath-related information is used to eliminate perceptual non-ideal factors in a first measurement. The first device is a first node, a perception function network element, or a second node. The perceptual 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. 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 for a first signal used for the first measurement, and the second node is a receiving node for the first signal used for the first measurement. In this way, by sending the first indication information through the first device, a reference path for eliminating perceptual non-ideal factors in the first measurement can be flexibly determined based on the first indication information, thereby improving the effectiveness of eliminating perceptual non-ideal factors.

[0073] Optionally, in some embodiments, the method further comprises:

[0074] 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;

[0075] 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.

[0076] In the embodiment of the present application, since the target information is obtained, the current perception environment and network environment can be known, so that the optimal reference path can be determined for eliminating the perception non-ideal factors, thereby further improving the effect of eliminating the perception non-ideal factors.

[0077] Optionally, in some embodiments, the first information includes at least one of the following:

[0078] A list of backscatter device identifiers corresponding to the sensing area;

[0079] A list of backscatter device identifiers corresponding to the sensing target;

[0080] the number of reference targets associated with the perceptual area;

[0081] the number of reference targets associated with the perceived target;

[0082] Status information of the reference target.

[0083] In the embodiment of the present application, the identification list of the backscatter devices may be an Electronic Product Code (EPC) of an RFID, or may be an ID of a new device.

[0084] Optionally, the state information of the reference target includes at least one of the following:

[0085] Position information, such as two-dimensional or three-dimensional position information including Cartesian or polar coordinates of the reference origin of the backscatter device;

[0086] velocity information, e.g., magnitude and direction;

[0087] Shape information.

[0088] In the case where the reference target is a backscatter device (including a tag), the status information further includes antenna orientation information or antenna array orientation information.

[0089] When the reference target is a backscatter device, the first information may also include perception capability information of the backscatter device, wherein the perception capability information includes at least one of the following: perception range; working bandwidth; working frequency of each channel; modulation mode; supported read and write frequencies; number of antennas; antenna array information; array arrangement information; error statistical distribution parameters of the reflected signal phase; power supply mode; power information; energy storage capacity; amplitude modulation capability; phase modulation capability; frequency modulation capability; duplexing capability; amplification capability; frequency shifting capability; sideband suppression capability; carrier generation capability; measurement capability; and self-perception capability.

[0090] In the embodiment 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 can 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 backscattering device, for example, it can include antenna spacing and antenna formation, etc.; the array arrangement information can be understood as a backscattering device array formed by multiple backscattering devices, where one backscattering device serves as one array element, including backscattering device spacing, backscattering device array formation, etc.; the above-mentioned functional modes can 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 capability can be understood as the amplitude information of the supported adjustable reflected signal, continuous amplitude modulation or discrete amplitude modulation and the corresponding number of states of continuous or discrete characteristics; the above-mentioned phase modulation capability can be understood as the phase information of the supported adjustable reflected signal, continuous phase modulation or discrete phase modulation and the corresponding number of states of continuous or discrete characteristics; the above-mentioned frequency modulation capability can be understood as the frequency information of the supported adjustable reflected signal, continuous frequency modulation or discrete frequency modulation and the corresponding number of states of continuous or discrete characteristics; the above-mentioned duplex capability can include supporting half-duplex, supporting full-duplex and supporting sub-band full-duplex; the above-mentioned amplification capability can be understood as the amplification factor; the above-mentioned frequency shifting capability can include KHz and MHz level frequency shifting; the above-mentioned sideband suppression capability can include having, not having, only having upper sideband suppression capability, only having lower sideband suppression capability, etc.; the above-mentioned measurement capability can be understood as the ability to obtain perception measurement quantities, for example, including whether it has measurement capability and what kind of perception measurement quantity it has; the above-mentioned self-perception capability can include whether it can obtain the impedance change information of the backscatter device antenna and circuit, whether the microcontroller unit (MCU) of the backscatter device can obtain dedicated sensor measurement information, etc.

[0091] In the case where the reference target is a backscatter device, the first information may further include an encryption algorithm type, a channel coding forward error correction (FEC) type, and a corresponding coding rate.

[0092] In a case where the reference target includes a reconfigurable intelligent surface (RIS) device, the first information may include signal control information of the RIS device.

[0093] In an embodiment of the present application, 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 set of pre-stored RIS modes for the RIS device.

[0094] RIS signal control type, for example, phase-controlled RIS, amplitude-controlled RIS, polarization-controlled RIS, or a combination thereof;

[0095] RIS signal forwarding behavior, for example, signal reflection through RIS, signal transmission through RIS, or simultaneous reflection and transmission through RIS;

[0096] Frequency response characteristics of the RIS signal, for example, the expected signal frequency range;

[0097] The control granularity for RIS signal regulation includes continuous state control and discrete state control, such as 1-bit phase control and 2-bit phase control;

[0098] RIS unit dimensions for RIS devices, including length and width, such as 1 / 4 wavelength of the center frequency;

[0099] The size of the RIS cell array, including the number of rows and columns;

[0100] The grouped state of the RIS unit array, for example, each RIS unit is independently controlled, and 2*2 RIS units are grouped as a whole.

[0101] In addition, it also includes the codebook or codebook set used by RIS. It is understood that the above parameters can be reported to the network side device through the active wireless module carried by the RIS device, and the downlink signal of the network side device is received to obtain downlink frame synchronization.

[0102] Optionally, the second information may include at least one of the following: available resource information; hardware information; detection capability indication information; status information.

[0103] In the embodiment of the present application, the above-mentioned available resource information can be understood as resource information that the second node can use for perception or synaesthesia integration, including at least one of the following:

[0104] Available bandwidth resources, such as the number of physical resource blocks (PRBs), the number of subcarriers, the number of frequency domain resource elements (REs), and the number of bandwidth parts (BWPs);

[0105] Available time resources, including, 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;

[0106] 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.

[0107] Optionally, the hardware information may be understood as hardware information of the second node, and may include, for example, at least one of the following:

[0108] Antenna port information, including, for example, the position coordinates of the antenna port equivalent phase center relative to a predetermined reference point on the antenna array, the antenna port array, and the number of physical antennas in the subarray connected to the antenna port;

[0109] Physical antenna information, such as the physical antenna's position coordinates relative to a predetermined reference point on the antenna array, the physical antenna array, and the subarray array to which the antenna port is connected. The array may include linear arrays, planar arrays, circular arrays, cylindrical arrays, L-shaped arrays, and non-uniform arrays.

[0110] Optionally, the detection capability indication information may include at least one of the following:

[0111] The noise floor level (NFL) in the delay domain of at least one antenna port;

[0112] The Doppler noise floor level of at least one antenna port;

[0113] Angle domain noise floor level of multiple antenna ports;

[0114] a detection dynamic range in the delay domain of at least one antenna port;

[0115] a detection dynamic range in the Doppler domain of at least one antenna port;

[0116] Detection dynamic range in the angular domain for multiple antenna ports.

[0117] Optionally, the state information of the sensing node may include at least one of the following:

[0118] Position information of the sensing node, which may be, for example, two-dimensional or three-dimensional position information, including Cartesian coordinates or polar coordinates of the reference frame origin of the sensing node;

[0119] Sense node velocity information, such as size and direction;

[0120] The antenna or antenna array orientation information of the sensing node.

[0121] Optionally, the third information includes at least one of the following: a measurement value of a target indicator, a measurement value of a perception measurement quantity, a perception result, a measurement value of a first target indicator, and a measurement value of a second target indicator;

[0122] The first target indicator is a perception performance indicator other than the target indicator, and the second target indicator is a communication performance indicator other than the target indicator.

[0123] It should be noted that the transmission methods of the first information, the second information, the third information and the fourth information may include at least one of the following situations:

[0124] Sent by the second node to the first node;

[0125] The second node sends it to the perception function network element, and the perception function network element sends it to the first node;

[0126] Sent by the sensing function network element to the first node;

[0127] The information is sent by at least one of the first node and the second node to the perception function network element.

[0128] Optionally, in some embodiments, the fourth information includes at least one of service quality and perception prior information.

[0129] 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 area (Radar Cross Section) 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.

[0130] Optionally, in some embodiments, the first indication information includes at least one of the following:

[0131] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0132] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0133] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0134] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0135] 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;

[0136] at least part of the first information;

[0137] at least part of the second information;

[0138] 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.

[0139] Optionally, the at least one target index can be understood or replaced by a multipath index list, which is used to determine the multipath that can be used as a reference path. The index list contains at least one multipath index value of at least one target dimension. The target index can be a relative index, and its value can be the index difference of any specified multipath in the relative target dimension; for example, assuming that the first path (or line of sight (LOS) path) index (absolute index) is 5, the target index is 8 when it is an absolute index, and 8-5=3 when it is a relative index.

[0140] The above-mentioned target conditions can also be understood as conditions that must be met by the reference path. For example, when the target condition is a target dimensional range indicating the reference path, it can be a preset interval value of at least one of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation dimension. For another example, when the target condition is a condition that must be met by the reference path, the target condition can be a preset threshold value of at least one of the power dimension, delay dimension, Doppler dimension, azimuth dimension, and elevation dimension. The number of such preset intervals or thresholds can be no less than one.

[0141] Optionally, the target characteristics may include a variation pattern of the reference path in the power dimension over time or a variation pattern of the reference path in the delay-Doppler dimension within a preset time period.

[0142] Optionally, the target parameter may include at least one of the following: complex amplitude (including magnitude and phase), power, delay, Doppler frequency, azimuth (including at least one of departure azimuth and arrival azimuth), and elevation (including at least one of departure elevation and arrival elevation) of the target polarization direction. The target polarization includes at least one of vertical polarization, horizontal polarization, +45° polarization, and -45° polarization.

[0143] Optionally, the target processing method may include necessary configuration information for signal processing. For example, to instruct the receiver to use FFT to estimate the reference path, the target processing method may include the number of points used in the FFT and the starting position of the FFT window. Another example is to instruct the receiver to use MUSIC to estimate the reference path, and the target processing method may include the dimensions 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, and the search interval.

[0144] Optionally, the target condition may include at least one of the following:

[0145] At least one sensed measurement value of the target measurement node remains within a preset interval within a preset time period, or falls within the preset interval a preset number of times within the preset time period;

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

[0147] The measurement value of at least one target indicator of the target measurement node remains within a preset interval within a preset time period, or falls within the preset interval a preset number of times within the preset time period;

[0148] The difference between at least one target indicator measurement value of the target measurement node and the corresponding target indicator measurement value obtained by the source node remains within a preset interval within a preset time period, or falls within the preset interval a preset number of times within the preset time period;

[0149] At least one perception measurement value and at least one communication measurement value of the target measurement node are both maintained within a preset interval within a preset time period, or both fall within the preset interval a preset number of times within the preset time period;

[0150] At least one target indicator measurement value and at least one communication measurement quantity measurement value of the target measurement node remain within a preset interval within a preset time period, or both fall within the preset interval a preset number of times within the preset time period;

[0151] The difference between at least one perception result of the target measurement node and the perception result corresponding to the source node remains within a preset interval within a preset time period, or falls within the preset interval a preset number of times within the preset time period;

[0152] At least one item of sensing parameter configuration information used by the target measurement node, meeting the minimum configuration requirements for sensing QoS;

[0153] The state of the perceived target changes (state includes position, speed, etc.);

[0154] The positions of nodes involved in sensing change.

[0155] Optionally, in some embodiments, when the first device is the first node or a perception function network element, the method further includes:

[0156] The first device performs a first operation;

[0157] 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;

[0158] 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;

[0159] 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.

[0160] In an embodiment of the present application, the first node or the perception function network element may determine first target configuration information based on the acquired target information, and then send a response configuration to the corresponding device to perform the first measurement.

[0161] Optionally, in some embodiments, the first configuration information may include at least one of the following:

[0162] 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.

[0163] Spreading factor or modulation rate or Backscatter Link Frequency (BLF) of the modulation;

[0164] The time-frequency resource information used by the reference target when participating in the first measurement.

[0165] Optionally, the second configuration information may be understood as perception-related parameter configuration information, and may include at least one of the following:

[0166] Waveform type, such as OFDM, SC-FDMA, OTFS, frequency modulated continuous wave (FMCW), pulse signal, etc.;

[0167] Subcarrier spacing: For example, the subcarrier spacing of the OFDM system is 30KHz;

[0168] Guard interval: The time interval between the moment a signal ends and the moment its latest echo signal is received. This parameter is proportional to the maximum sensing distance. For example, it can be calculated as 2dmax / c, where dmax is the maximum sensing distance (a sensing requirement). For example, for a self-transmitted and self-received sensing signal, dmax represents the maximum distance between the sensing signal receiving point and the signal transmitting point. In some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval.

[0169] 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 (perception requirement) and c is the speed of light.

[0170] Burst duration: This parameter is inversely proportional to the rate resolution (a sensing requirement). It is the time span of the sensing signal and is used to calculate the Doppler shift. This parameter can be calculated as c / 2 / delta_v / fc, where delta_v is the rate resolution and fc is the carrier frequency of the sensing signal.

[0171] Time interval: This parameter can be calculated by c / 2 / fc / v_range; where v_range is the maximum rate minus the minimum rate (which belongs to the perception requirement); this parameter is the time interval between two adjacent perception signals;

[0172] Transmit signal power, for example, from -20dBm to 23dBm, with a value of 2dBm;

[0173] Signal format, such as SRS, DMRS, PRS, or other predefined signals, and related sequence format information;

[0174] Signal direction; for example, sensing the direction of the signal or beam information;

[0175] Time resources, such as the time slot index or symbol index of the time slot where the perception signal is located. There are two types of time resources: one is a one-time time resource, for example, one symbol sends an omnidirectional perception signal; the other is a non-one-time time resource, such as multiple groups of periodic time resources or discontinuous time resources (which may include start time and end time). Each group of periodic time resources sends a perception signal in the same direction, and different groups of periodic time resources have different beam directions.

[0176] Frequency resources, including the center frequency of the sensing signal, bandwidth, RB or subcarrier, Node A (Point A), starting bandwidth position, etc.

[0177] Quasi co-location (QCL) relationship, for example, the sensing signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C or D.

[0178] Antenna configuration information, including:

[0179] Antenna element ID or antenna port ID used to send and / or receive sensing signals;

[0180] Panel ID and array element ID used to send and / or receive sensing signals;

[0181] The position information of the antenna element used to send and / or receive the sensing signal relative to a local reference point on the antenna array (which can be expressed in Cartesian coordinates (x, y, z) or spherical coordinates) express);

[0182] The position information of the panel used to send and / or receive sensing signals relative to a local reference point on the antenna array (can be expressed in Cartesian coordinates (x, y, z) or spherical coordinates) ), and the position information of the antenna array elements used to send sensing signals within these selected panels relative to a unified reference point of the panel (such as the center point of the panel) (which can be expressed in Cartesian coordinates (x, y, z) or spherical coordinates) express);

[0183] Bitmap information of antenna elements, for example, the bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving sensing signals, and uses "0" to indicate that the element is not selected (and vice versa);

[0184] The bitmap information of the array panel, for example: the bitmap uses "1" to indicate that the array element is selected for sending and / or receiving sensing signals, and uses "0" to indicate that the array element is not selected (or vice versa), as well as the bitmap information of the array elements in these selected panels.

[0185] 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:

[0186] The first device sends the first signal;

[0187] 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.

[0188] In an embodiment of the present application, a first node and a 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 performing the first measurement, the second node may obtain measurement information on multiple paths, determine a perceptual non-ideal factor based on the measurement information of the target reference path determined by the first indication information and prior information, and ultimately eliminate the perceptual non-ideal factor from the measurement information corresponding to the measured path based on the determined perceptual non-ideal factor, thereby obtaining a first measurement result. The first measurement result may include at least one of a target indicator measurement value, a perceptual measurement value, and a first target indicator measurement value.

[0189] Optionally, in some embodiments, when the first device is a second node, the method further includes:

[0190] 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;

[0191] The first device performs the first measurement based on the first target configuration information.

[0192] In an embodiment of the present application, the second node may obtain first target configuration information from the first node or the perception function network element, and then perform a first measurement based on the first target configuration information, and finally obtain a first measurement result.

[0193] Optionally, in some embodiments, when the first device is a second node, the method further includes:

[0194] 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 relevant information of the multipath, where the relevant information of the multipath is used to eliminate perceived non-ideal factors of the first measurement.

[0195] In an embodiment of the present application, when the 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 a target reference, the second indication information may include acceptance indication information, or indication information that is the same as the first indication information. When the first indication information is used to determine a reference path and the second device disagrees to use the reference path corresponding to the first indication information as a target reference, the second indication information may be used to indicate other reference paths, that is, to indicate relevant information about multiple paths. When the 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 be used to indicate relevant information about one reference path.

[0196] For example, in some embodiments, the second indication information includes at least one of the following:

[0197] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0198] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0199] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0200] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0201] a target processing method, the target processing method being used to indicate a signal processing method to be used by a recipient of the second indication information when determining a reference path;

[0202] at least part of the first information;

[0203] at least part of the second information;

[0204] 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.

[0205] In an embodiment of the present application, the first information is relevant information of 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 non-ideal factors of perception, and the second information is relevant information of a perception node.

[0206] Optionally, in some embodiments, after the first device receives the second indication information from the second device, the method further includes:

[0207] 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.

[0208] Optionally, in some embodiments, 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:

[0209] 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;

[0210] 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;

[0211] The first device determines the first indication information based on a second measurement result corresponding to the second measurement;

[0212] The first device sends the first indication information to the second device.

[0213] In the embodiment of the present application, before determining the target reference path, that is, before sending the first indication information, a sensing measurement can be performed based on the second target configuration information, thereby better determining the target reference path and further improving the effect of eliminating non-ideal sensing factors.

[0214] It should be understood that the parameters contained in the above-mentioned third configuration information may be the same as, or partially the same as, the parameters contained in the above-mentioned first configuration information, and the parameters contained in the above-mentioned fourth configuration information may be the same as, or partially the same as, the parameters contained in the above-mentioned second configuration information.

[0215] 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 may send a second measurement result corresponding to the second measurement to the first device, and the first device may then determine the first indication information based on the received second measurement result. The second measurement result may include the same, partially the same, or different content as the first measurement result.

[0216] Optionally, in some embodiments, the first device determining the first indication information based on the second measurement result corresponding to the second measurement includes:

[0217] The first device determines the first indication information based on a second measurement result corresponding to the second measurement and the target information.

[0218] In the embodiment of the present application, since target information is added to determine the first indication information, the accuracy of determining the target reference path can be improved, thereby improving the effect of eliminating non-ideal factors of perception.

[0219] Optionally, in some embodiments, when the first device is the first node, the method further includes:

[0220] The first device sends a second signal based on the fourth configuration information;

[0221] 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.

[0222] 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:

[0223] 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;

[0224] The first device performs a second measurement based on the second target configuration information to obtain a second measurement result;

[0225] The first device determines first indication information based on the second measurement result and the target information;

[0226] The first device sends first indication information to the second device.

[0227] It should be noted that the classification of multipath may include:

[0228] First target path: the path associated only with the perceived target;

[0229] Second target path: A path associated with both the perceived target and the reference target participating in the perception. This 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; Active Tag -> perceived target -> node B.

[0230] The third target path is the path associated only with the reference target participating in the perception; that is, node A—>reference target—>node A / B; Active Tag—>node B;

[0231] First interference path: The multipath between node A and node B (or node A), or between the Active Tag and node B, excluding the first target path, the second target path, and the third target path, including at least one of the following: a path not associated with the sensed target or the reference target; a reflection path associated with the sensed target and / or the reference target but also passing through other unknown reflectors; a reflection path emitted from the Active Tag and passing through other unknown reflectors;

[0232] Second interference path: between node A and node B (or node A), or between the Active Tag and node B, excluding the first target path and the second target path;

[0233] Third interference path: between node A and node B (or node A), or between the Active Tag and node B, excluding the second target path and the third target path;

[0234] 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.

[0235] Target metrics refer to metrics related to the elimination of non-ideal factors measured by receiving devices, such as base stations or UEs, in reference path-based perception / synaesthesia integration. Specifically, they may include at least one of the following: metrics related to received power; metrics related to interference and noise power; or metrics related to both received power and interference or noise power.

[0236] Optionally, the received power-related indicator includes at least one of the following:

[0237] a first indicator (received power of a first target path), where the first indicator represents a linear average value of a first power on a first resource, where the first power is the received power of the first target path in a channel response measured for a first signal, and the first resource is a resource unit that carries the first signal;

[0238] a second indicator (received power of the second target path), where the second indicator represents a linear average value of the second power on the second resource. The second power is the received power of the second target path in a channel response measured for a second signal. The second signal is the signal of the first signal after propagation through the second target path. The second resource is a resource unit that carries the second signal.

[0239] a third indicator (received power of the third target path), where the third indicator represents a linear average value of a third power on a third resource. The third power is the received power of the third target path in a channel response measured for a third signal. The third signal is the signal of the first signal after propagation through the third target path. The third resource is a resource unit that carries the third signal.

[0240] Among them, the first target path is a path associated only with the perceived target; the second target path is a path associated with both the perceived target and the backscattering devices participating in the perception; and the third target path is a path associated only with the backscattering devices participating in the perception.

[0241] Optionally, for at least one reference target on the second target path propagation path: when the reference target reflects a signal, the reference target may frequency-shift the first signal and then reflect it, or it may directly fully reflect the first signal. When all reference targets on the second target path propagation path fully reflect the first signal, the resource unit carrying the second signal is the same as the resource unit carrying the first signal. When the reference target transmits a signal, the second signal is sent by the reference target.

[0242] Optionally, for any at least one reference target on the third target path propagation path: when the reference target reflects the signal, the reference target may frequency shift the first signal and then reflect it, or it may directly fully reflect the first signal; when all reference targets on the third target path propagation path are fully reflected, 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.

[0243] Optionally, the indicator related to interference and noise power includes at least one of the following:

[0244] a fourth indicator, the fourth indicator being the sum of a fourth power and a fifth power, the fourth power representing a linear average of the power of a fourth target path in a channel response of the first signal on the first resource, the fourth target path being a path other than the first target path, and the fifth power representing a linear average of interference and noise power from a fourth signal on the first resource, the fourth signal being a signal other than the first signal, the second signal, and the third signal;

[0245] a fifth indicator, the fifth indicator being used to represent the sum of a sixth power and a seventh power, the sixth power representing a linear average of powers of a fifth target path in a channel response of the second signal on the second resource, the fifth target path being a path other than the second target path, and the seventh power representing a linear average of interference and noise powers from the fourth signal on the second resource;

[0246] a sixth indicator, the sixth indicator being used to represent the sum of an eighth power and a ninth power, the eighth power representing a linear average of powers of a sixth target path in a channel response of the third signal on the third resource, the sixth target path being a path other than the third target path, and the ninth power representing a linear average of interference and noise powers from the fourth signal on the third resource;

[0247] a seventh indicator, the seventh indicator being used to represent the sum of a linear average of the power of the second interference path on the fourth resource and a tenth power, where the tenth power is the linear average of interference and noise from the fourth signal on the fourth resource, and the fourth resource is a resource unit carrying the first signal;

[0248] an eighth indicator, the eighth indicator being used to represent the sum of a linear average of the power of the third interference path on the fifth resource and an eleventh power, where the eleventh power is the linear average of interference and noise from the fourth signal on the fifth resource, and the fifth resource is a set of resource elements carrying the second signal and the third signal;

[0249] a ninth indicator, the ninth indicator being used to represent the sum of a linear average of the power of the fourth interference path on the sixth resource and a twelfth power, where the twelfth power is the linear average of interference and noise from the fourth signal on the sixth resource, and the sixth resource is a set of resource elements carrying the first and third signals;

[0250] a tenth indicator, the tenth indicator being used to represent the sum of a linear average of the power of the first interference path on the seventh resource and a thirteenth power, the thirteenth power being the linear average of interference and noise from the fourth signal on the seventh resource, the seventh resource being a set of resource elements carrying the first signal, the second signal, and the third signal;

[0251] an eleventh indicator, the eleventh indicator being used to represent a linear average value of interference and noise power from signals other than the first signal on the first resource;

[0252] a twelfth indicator, the twelfth indicator being used to represent a linear average of interference and noise power from a fifth signal on the second resource, the fifth signal being a signal other than the second signal;

[0253] a thirteenth indicator, the thirteenth indicator being used to represent a linear average of interference and noise power from a sixth signal on the third resource, the sixth signal being a signal other than the third signal;

[0254] A fourteenth indicator, the fourteenth indicator being used to represent a linear average of interference and noise power from a seventh signal on the fourth resource, the seventh signal being a signal other than the first signal and the second signal;

[0255] a fifteenth indicator, the fifteenth indicator being used to represent a linear average of interference and noise power from an eighth signal on the fifth resource, the eighth signal being a signal other than the second signal and the third signal;

[0256] a sixteenth indicator, the sixteenth indicator being used to represent a linear average of interference and noise power from a ninth signal on the sixth resource, the ninth signal being a signal other than the first signal and the third signal;

[0257] a seventeenth indicator, the seventeenth indicator being used to represent a linear average of interference and noise power from a tenth signal on a seventh resource, the ninth signal being a signal other than the first signal, the second signal, and the third signal;

[0258] An eighteenth indicator, the eighteenth indicator being used to represent a linear average value of the power of the fourth target path in the channel response of the first signal on the first resource;

[0259] A nineteenth indicator, the nineteenth indicator being used to represent a linear average value of the power of the fifth target path in the channel response of the second signal on the second resource;

[0260] The twentieth indicator, the eighteenth indicator is used to represent the linear average value of the power of the sixth target path in the channel response of the third signal on the third resource.

[0261] In an embodiment of the present application, the above-mentioned fourth indicator can be equal to the first total received power minus the first indicator, wherein the first total received power can 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 the non-serving cell, adjacent channel interference and thermal noise, etc.), or the first total received power can be equal to the received signal strength indication (Received Signal Strength Indication, RSSI)*K1, K1 is a coefficient greater than 0, and the measurement resource of RSSI is the first resource or other resources (for example, resources configured by high-level signaling).

[0262] Optionally, the fifth indicator may be equal to the second total received power minus the second indicator. The second total received power may represent a linear average of the total received power on the second resource (e.g., including the received power of signals of the serving cell and the non-serving cell, adjacent channel interference, and thermal noise, etc.).

[0263] Optionally, the sixth indicator may be equal to the third total received power minus the third indicator. The third total received power may represent a linear average of the total received power on the third resource (e.g., including the received power of signals of the serving cell and the non-serving cell, adjacent channel interference, and thermal noise, etc.).

[0264] Optionally, the seventh indicator may be equal to the fourth total received power minus the first indicator, and then minus the second indicator. The fourth total received power may represent a linear average of the total received powers on the fourth resource.

[0265] Optionally, the eighth indicator may be equal to the fifth total received power minus the second indicator, and then minus the third indicator. The fifth total received power may represent a linear average of the total received powers on the fifth resource.

[0266] Optionally, the ninth indicator may be equal to the sixth total received power minus the first indicator, and then minus the third indicator. The sixth total received power may represent a linear average of the total received powers on the sixth resource.

[0267] Optionally, the tenth indicator may be equal to the seventh total received power minus the first indicator, minus the second indicator, and minus the third indicator. The seventh total received power may represent a linear average of the total received powers on the seventh resource.

[0268] Optionally, the eleventh indicator may be equal to the first total received power minus the received power of the first signal, wherein the received power of the first signal may be understood as the reference signal received power (RSRP) of the first signal.

[0269] Optionally, the twelfth indicator may be equal to the second total received power minus the received power of the second signal, wherein the received power of the second signal may be understood as the RSRP of the second signal.

[0270] Optionally, the thirteenth indicator may be equal to the third total received power minus the received power of the third signal, wherein the received power of the third signal may be understood as the RSRP of the third signal.

[0271] Optionally, the fourteenth indicator may be equal to the fourth total received power minus the received power of the first signal, minus the received power of the second signal.

[0272] Optionally, the fifteenth indicator may be equal to the fifth total received power minus the received power of the second signal, minus the received power of the third signal.

[0273] Optionally, the sixteenth indicator may be equal to the sixth total received power minus the received power of the first signal, minus the received power of the third signal.

[0274] Optionally, the seventeenth indicator may be equal to the seventh total received power minus the received power of the first signal, minus the received power of the second signal, and minus the received power of the third signal.

[0275] Optionally, the eighteenth indicator may be equal to the receiving power of the first signal minus the first indicator.

[0276] Optionally, the nineteenth indicator may be equal to the received power of the second signal minus the second indicator.

[0277] Optionally, the twentieth indicator may be equal to the receiving power of the third signal minus the third indicator.

[0278] Optionally, the indicator related to both the received power and the interference or noise power includes at least one of the following:

[0279] An indicator for evaluating the signal quality of the first target path;

[0280] An indicator for evaluating the signal quality of the second target path;

[0281] An indicator for evaluating the signal quality of the third target path;

[0282] An indicator used to comprehensively evaluate the quality of useful signals.

[0283] Optionally, the indicator for evaluating the signal quality of the first target path includes at least one of the following:

[0284] A twenty-first index, the twenty-first index being equal to the first index divided by the fourth index;

[0285] a twenty-second index, the twenty-second index being equal to the first index divided by the eleventh index;

[0286] The twenty-third indicator, the twenty-third indicator is equal to the first indicator divided by the eighteenth indicator.

[0287] Optionally, the indicator used to evaluate the signal quality of the second target path includes at least one of the following:

[0288] A twenty-fourth index, the twenty-fourth index being equal to the second index divided by the fifth index;

[0289] a twenty-fifth index, the twenty-fifth index being equal to the second index divided by the twelfth index;

[0290] The twenty-sixth index, the twenty-sixth index is equal to the second index divided by the nineteenth index.

[0291] Optionally, the indicator for evaluating the signal quality of the third target path includes at least one of the following:

[0292] A twenty-seventh index, the twenty-seventh index being equal to the third index divided by the sixth index;

[0293] The twenty-eighth index, the twenty-eighth index is equal to the third index divided by the thirteenth index;

[0294] The 29th indicator, the 29th indicator is equal to the third indicator divided by the 20th indicator.

[0295] Optionally, the indicator for comprehensively evaluating the quality of the useful signal includes at least one of the following:

[0296] The 30th index, the 30th index = K2 * 21st index + K3 * 24th index + K4 * 27th index; wherein K2, K3, K4 are coefficients greater than 0;

[0297] The 31st index, the 31st index = K5 * 22nd index + K6 * 25th index + K7 * 28th index; wherein K5, K6, and K7 are coefficients greater than 0;

[0298] The 32nd index, the 32nd index = K8 * 23rd index + K9 * 26th index + K 10 * The 29th indicator; K8, K9, K 10 is a coefficient greater than 0;

[0299] The thirty-third index, the thirty-third index = K 11 *(first index / tenth index)+K 12 *(Second Index / Tenth Index)+K 13 *(third index / tenth index); where K 11 ,K 12 ,K 13 is a coefficient greater than 0;

[0300] The thirty-fourth index, the thirty-fourth index = K 14 *(first index / seventeenth index)+K 15 *(Second Index / Seventeenth Index)+K 16 *(Third Index / Seventeenth Index); K 14 ,K 15 ,K 16 is a coefficient greater than 0;

[0301] The thirty-fifth index, the thirty-fifth index = K 17 *(first indicator / seventh indicator)+K 18 *(Second Index / Seventh Index); K 17 ,K 18 is a coefficient greater than 0;

[0302] The thirty-sixth index, the thirty-sixth index = K 19 *(Second Index / Eighth Index)+K 20 *(Third Index / Eighth Index); K 19 ,K 20 is a coefficient greater than 0;

[0303] The thirty-seventh index, the thirty-seventh index = K 21 *(first indicator / ninth indicator)+K 22 *(Third Index / Ninth Index); K 21 ,K 22 is a coefficient greater than 0;

[0304] The thirty-eighth index, the thirty-eighth index = K 23 *(first indicator / fourteenth indicator)+K 24 *(Second Index / Fourteenth Index); K 23 ,K 24 is a coefficient greater than 0;

[0305] The thirty-ninth index, the thirty-ninth index = K 25 *(Second Index / Fifteenth Index)+K 26 *(Third Index / Fifteenth Index); K 25 ,K 26 is a coefficient greater than 0;

[0306] The 40th index, the 40th index = K 27 *(first index / sixteenth index)+K 28 *(Third Index / Sixteenth Index); K 27 ,K 28 is a coefficient greater than 0;

[0307] The 41st index, the 41st index = K 29 *(first index / eighteenth index)+K 30 *(Second Index / Nineteenth Index)+K 31 *(Third indicator / Twentieth indicator); K 29 ,K 30 ,K 31 is a coefficient greater than 0.

[0308] Optionally, the calculation method of the above-mentioned first indicator, second indicator or third indicator will be explained below using the first indicator as an example.

[0309] The terminal performs channel estimation based on the transmitted first signal X(k) and the received signal Y(k) corresponding to the first signal to obtain a channel response (Channel Response) H(k) = Y(k) / X(k), where k = 0, 1, 2, ..., K-1, representing the resource unit index. After obtaining the channel response X(k), the terminal transforms it into a target dimension and determines a first target path in the target dimension. The power of the first target path is then calculated as a first indicator. If the first target path includes multiple paths, the sum of the powers of the multiple paths is calculated as the first indicator.

[0310] Among them, the target dimension includes one of the following: delay dimension; Doppler dimension; azimuth dimension; elevation dimension; a combined dimension 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.

[0311] For example, H(f) is the channel response, where f = 0, 1, 2, ..., N-1, representing the frequency domain sampling point (e.g., subcarrier index), and H(f) can be transformed into the delay dimension (target dimension) by performing an inverse Fourier transform on it; for another example, H(f, t) is the channel response, where f = 0, 1, 2, ..., N-1, representing the frequency domain sampling point (e.g., subcarrier index), and t = 0, 1, 2, ..., M-1, representing the time domain sampling point (e.g., OFDM symbol index), and H(f, t) can be transformed into the time domain dimension by performing an inverse Fourier transform along the frequency domain dimension and a Fourier transform along the time domain dimension. Delay-Doppler dimension (target dimension); for another example, H(f,t,s) is the channel response, where f=0,1,2,…,N-1, represents the frequency domain sampling point (e.g., subcarrier index), t=0,1,2,…,M-1, represents the time domain sampling point (e.g., OFDM symbol index), and s=0,1,2,…,P-1, represents the spatial domain sampling point (antenna index or port index). Then, H(f,t,s) can be transformed into the delay-Doppler-angle dimension (target dimension) by performing inverse Fourier transform along the frequency domain dimension, Fourier transform along the time domain dimension, and Fourier transform along the antenna domain dimension.

[0312] A method for determining the first target path in the channel response obtained by measuring the first signal is as follows:

[0313] Determine the first path set. The path in the first path set includes the path whose amplitude / power / intensity / energy exceeds a certain threshold among all the paths after the channel response is transformed into the target dimension. (For example, in Figure 3, paths 0, 1, 2, and 3 are the path of the first path set); the certain threshold can be set to be higher than the noise threshold or higher than the noise interference threshold. 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 path set) is optional, and the first target path can be determined only based on the next step.

[0314] A path that meets a first condition is selected from the first path set or from all paths as the first target path.

[0315] The first condition includes at least one of the following:

[0316] The amplitude / power / intensity / energy of the path exceeds a preset threshold or is within a preset range; for example, the preset threshold is 5 times the noise threshold;

[0317] The Doppler of the path exceeds the preset threshold or is within the preset range;

[0318] The path delay exceeds the preset threshold or is within the preset range;

[0319] The angle of the path exceeds the preset threshold or is within the preset range;

[0320] The difference between the amplitude / power / intensity / energy of the signal path and the first-reach path (e.g., LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., Reconfigurable Intelligent Surface (RIS) / Backscatter device / other known passive target)) exceeds a preset threshold or is within a preset range;

[0321] The Doppler difference between the signal path and the first arrival path (e.g., LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., RIS / Backscatter device / other known passive target)) exceeds a preset threshold or is within a preset range;

[0322] The delay difference between the signal path and the first arrival path (e.g., LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., RIS / Backscatter device / other known passive target)) exceeds a preset threshold or is within a preset range;

[0323] The angle difference between the signal path and the first arrival path (e.g., LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., RIS / Backscatter device / other known passive target)) exceeds a preset threshold or is within a preset range;

[0324] The amplitude / power / intensity / energy or phase of the path satisfies a specific modulation rule, where the specific modulation rule is the modulation rule of the tag / backscatter device / RIS, that is, the first target path may be a path modulated and reflected by the tag / backscatter device / RIS.

[0325] It should be understood that each of the above first conditions may also be based on statistical results over a period of time; for example, the ratio of the above indicators (such as the Doppler of the path, the time delay of the path, etc.) exceeding a preset threshold or being within a preset range in a preset time window reaches a preset ratio, 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 are within a preset range in a preset time window reaches a preset number of times;

[0326] The preset threshold or set interval range is sent by another device to the receiving device and is determined by the other device based on prior perception information or perception requirements. Alternatively, the preset threshold or set interval range is determined by the receiving device based on prior perception information or perception requirements.

[0327] The priori perception information or perception requirements include the following information:

[0328] Perception services or perception service types, such as detecting whether a target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, classification, radar cross section area (Radar Cross Section Area), etc. 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: 13-21 breaths / minute, female: 15-20 breaths / minute; adult: 12-20 breaths / minute, child: approximately 30-40 breaths / minute), which can be used as perception prior information;

[0329] Perception target area: refers to the location area of ​​the perception object, or the location area where imaging or environmental reconstruction is required; for example, the preset interval range of the time delay of the first target path is determined based on the approximate location / distance of the perception object;

[0330] Perception object type: Classifies the perception object according to its possible motion characteristics. Each perception object type contains information such as the typical perception object's motion speed range, motion acceleration range, and typical RCS range.

[0331] The number of perceived targets; for example, the camera perception result is used as a perception prior information to obtain the number of perceived targets.

[0332] For example, in FIG3 , paths 0, 1, 2, and 3 are paths in the first path set, where paths 2 and 3 are perception paths that meet the first condition (eg, their delays meet a preset threshold), and paths 0 and 1 are paths associated with other scatterers.

[0333] For frequency range 1, the reference point for the first metric can be the antenna connector of a receiving device, such as a terminal. For frequency range 1, if the receiving device has multiple receiving channels, the first metric measured and reported by the receiving device cannot be lower than the metric of any single receiving channel. For frequency range 2, the first metric measured for a receiving channel requires measuring the combined signals of the multiple antenna elements corresponding to that receiving channel.

[0334] Another optional calculation method of the first indicator is as follows:

[0335] When calculating the received power of the first target path, it can also be the power of the first target path in the target dimension and N1P σ avr The difference between the two is used as the first indicator, where N1 represents the number of the first target path. σ avr is the average power of multiple paths other than the first path set in the target dimension.

[0336] The received power of the first signal is calculated as follows:

[0337] The received power of the first signal may be obtained by the receiving device, after obtaining the channel response (Channel Response) H(k), transforming it to the target dimension, determining the first path set in the target dimension, and then calculating the power sum of all paths in the first path set.

[0338] It should be noted that the calculation of the second indicator only requires replacing the information associated with the first indicator with the information associated with the second indicator, for example, replacing the first signal with the second signal, the first target path with the second target path, and the first indicator with the second indicator. Furthermore, the calculation of the third indicator only requires replacing the information associated with the first indicator with the information associated with the third indicator, for example, replacing the first signal with the third signal, the first target path with the third target path, and the first indicator with the third indicator.

[0339] Optionally, the calculation method of the fourth to tenth indicators will be described below based on the calculation method of the fourth indicator, as follows:

[0340] The channel response H(k) is processed by the first filter to obtain H filter1 (k), then according to H filter1 (k) and the first signal X(k) to obtain the received signal Y after the first filtering process filter1 (k), that is, Y filter1 (k)=Hfilter1 (k)X(k). Then the received signal Y(k) is subtracted from the received signal Y after the first filtering process. filter1 (k) Thus we get the interference and noise signal Y σ1 (k), that is, Y σ1 (k) = Y(k) - Y filter1 (k), and then calculate the fourth index

[0341] The first filtering process is used to eliminate noise and interference in the target dimension and non-first target paths. For example, the first filtering process sets the amplitude / power / intensity / energy of paths other than the first target path in FIG3 to zero. The channel response H after the first filtering process filter1 (k) does not include noise, interference, or non-first target paths, but only includes the first target path.

[0342] It should be noted that, for the calculation of the fifth to tenth indicators, it is only necessary to replace the information associated with the fourth indicator with the information associated with the fifth to tenth indicators, which will not be repeated here.

[0343] Optionally, the calculation method of the eleventh to seventeenth indicators is described below using the eleventh indicator as an example. The calculation method of the eleventh indicator is as follows:

[0344] The channel response H(k) is processed by the second filter to obtain H filter2 (k), then according to H filter2 (k) and the first signal X(k) to obtain the second filtered received signal Y filter2 (k), that is, Y filter2 (k)=H filter2 (k)X(k). Then the received signal Y(k) is subtracted from the received signal Y after the second filtering process. filter2 (k) Thus we get the interference and noise signal Y σ2 (k), that is, Y σ2 (k) = Y(k) - Y filter2 (k), and then calculate the eleventh indicator

[0345] The second filtering process may be a noise interference suppression process on the target dimension (for example, setting the amplitude / power / intensity / energy of the paths other than the first path set in FIG3 to zero), or a minimum mean square error (MMSE) filter. The channel response H after the second filtering process is filter2 (k) does not contain noise and interference, and only contains the paths in the first path set.

[0346] Another alternative calculation method of the eleventh indicator:

[0347] According to the average power of multiple paths other than the first path set in the target dimension Calculate the eleventh indicator P σ2 ,Right now Where N represents the number of sampling points in the target dimension.

[0348] Optionally, the first target indicator may be calculated based on the perception measurement amount and used to evaluate the perception performance of the second node with respect to the perception area or the perception target, including at least one of the following:

[0349] The statistical mean, standard deviation, or variance of multiple measurements of the same perceptual measure;

[0350] The deviation between the predicted value of the sensory measurement quantity / sensory result and the actual measurement value, as well as the statistical mean, standard deviation or variance of the deviation;

[0351] Ambiguity function-related evaluation indicators include the normalized sidelobe level (NSL), which 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 (or the ratio of the highest sidelobe to the main lobe); in addition, the number of normalized ambiguity function sidelobes / total power / total energy with peak values ​​above a given threshold, and the width of the ambiguity function main lobe (3dB width).

[0352] The Cramér-Rao Lower Bound (CRLB) is the lowest variance that can be achieved by all unbiased estimators. It is mathematically equal to the inverse of the Fisher information and is related to the perceived SNR.

[0353] The Capacity-Distortion Tradeoff function quantitatively gives the maximum achievable rate of reliable transmission of the synaesthesia integrated system under given distortion constraints;

[0354] Equivalent mean square error (MSE) converts the spectral efficiency of communication into equivalent radar mean square error and combines it with the perception Cramer-Rao lower bound to obtain the result.

[0355] Radar Estimation-Communication Rate: The perception channel is treated as a non-cooperative communication channel, and the mutual information between the perception system and the target is the estimation rate.

[0356] Welch Bound;

[0357] Perceptual reproducibility evaluation metrics (such as the sum of the Euclidean distances between two sequence samples, or the regularized 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.);

[0358] The calculation result is obtained by performing at least one operation among addition, subtraction, multiplication and division on at least one of the target indicators, any at least two of the indicators such as ambiguity function related evaluation indicators and Cramer-Rao lower bound (CRLB).

[0359] Optionally, the second target indicator may be calculated based on the perception measurement quantity and used to evaluate the communication performance of the backscatter device, including at least one of the following:

[0360] a bit error rate (BER) / block error rate (BLER) for backscatter communication using the first signal of at least one port;

[0361] spectral efficiency of backscatter communications using the first signal of the at least one port;

[0362] A transmission capacity of the at least one port is used for backscatter communication using the first signal.

[0363] In backscatter communication, the backscatter device modulates communication information onto a first signal and reflects it. The first signal, modulated and reflected by the backscatter device, is received by a second node. The second node detects the first-order harmonic of the modulated first signal in the target dimension and demodulates the communication information. The communication information includes communication data between the backscatter device and the second node, measurement information from a dedicated sensor associated with the backscatter device, and the ID information of the backscatter device.

[0364] In order to better understand the present application, some examples are given below for detailed description.

[0365] Example 1: As shown in FIG4 , the perception processing method may include the following process:

[0366] Step 401: The first node obtains the second information, the third information, and the fourth information (ie, obtains the target information);

[0367] Step 402: 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 second information, the third information, and the fourth information.

[0368] Step 403: The first node sends indication information A and second configuration information to the second node;

[0369] Step 404: The first node sends a first signal;

[0370] Step 405: The second node performs signal processing to obtain a first measurement result corresponding to the first measurement;

[0371] Step 406: The second node sends the first measurement result to the first node.

[0372] 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.

[0373] Example 2: As shown in FIG5 , the perception processing method may include the following process:

[0374] Step 501: The first node obtains first information, second information, third information, and fourth information (i.e., obtains target information);

[0375] 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.

[0376] Step 503: The first node sends indication information A, first configuration information, and second configuration information to the second node;

[0377] Step 504: The first node sends first configuration information to the reference target;

[0378] Step 505: The first node sends a first signal;

[0379] Step 506, the reference target reflects the first signal;

[0380] 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;

[0381] Step 508: The second node sends the first measurement result to the first node.

[0382] 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.

[0383] Example 3: As shown in FIG6 , the perception processing method may include the following process:

[0384] Step 601: The second node obtains the second information, the third information, and the fourth information (ie, obtains the target information);

[0385] 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);

[0386] Step 603: The second node sends indication information B to the first node;

[0387] 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.

[0388] Step 605: The first node sends indication information A and second configuration information to the second node;

[0389] Step 606: The first node sends a first signal;

[0390] Step 607: The second node performs signal processing to obtain a first measurement result corresponding to the first measurement;

[0391] Step 608: The second node sends the first measurement result to the first node.

[0392] It can be understood that, in this embodiment, the second node may be the first device, and the first node may be the second device.

[0393] Example 4: As shown in FIG7 , the perception processing method may include the following process:

[0394] Step 701: The second node obtains first information, second information, third information, and fourth information (i.e., obtains target information);

[0395] Step 702: The second node determines indication information B (i.e., first indication information determined by the second node based on the target information) based on the first information, the second information, the third information, and the fourth information.

[0396] Step 703: The second node sends indication information B to the first node;

[0397] Step 704: The first node determines indication information A (i.e., the second indication information determined by the first node), the first configuration information, and the second configuration information. Optionally, before step 604, the first node may further obtain second information, third information, and fourth information for determining indication information A, the first configuration information, and the second configuration information.

[0398] Step 705: The first node sends indication information A and second configuration information to the second node;

[0399] Step 706: The first node sends first configuration information to the reference target;

[0400] Step 707: The first node sends a first signal;

[0401] Step 708, the reference target reflects the first signal;

[0402] Step 709: The second node receives the transmitted first signal and processes the signal to obtain a first measurement result corresponding to the first measurement;

[0403] Step 710: The second node sends a first measurement result to the first node.

[0404] It can be understood that, in this embodiment, the second node may be the first device, and the first node may be the second device.

[0405] Example 5: The difference from Example 1 and Example 2 is that the method of determining the 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 a second measurement to obtain a measurement result corresponding to the second measurement, and then the first node determines the indication information A based on the second measurement result, or the first node determines the indication information A based on the second measurement result and the target information.

[0406] Example 6 differs from Example 1 and Example 2 in 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 a second measurement to obtain a measurement result corresponding to the second measurement, and then the second node determines the indication information B based on the second measurement result, or the second node determines the indication information B based on the second measurement result and the target information.

[0407] 8 , an embodiment of the present application further provides a perception processing method. As shown in FIG8 , the perception processing method includes:

[0408] Step 801: A second device receives 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 a first measurement. The first device is a first node, a perception function network element, or a second node.

[0409] 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;

[0410] 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.

[0411] Optionally, the first indication information is determined based on target information, where the target information includes at least one of the first information, the second information, the third information, and the fourth information;

[0412] 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.

[0413] Optionally, when the reference target includes a reconfigurable smart surface (RIS) device, the first information includes signal control information of the RIS device.

[0414] Optionally, 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.

[0415] Optionally, the first indication information includes at least one of the following:

[0416] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0417] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0418] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0419] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0420] 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;

[0421] at least part of the first information;

[0422] at least part of the second information;

[0423] 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.

[0424] Optionally, when the second device is the second node, the method further includes:

[0425] 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;

[0426] The second device performs the first measurement based on the first target configuration information;

[0427] 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.

[0428] Optionally, the method further includes:

[0429] The second device sends the first measurement result to at least one of the first node and the perception function network element.

[0430] Optionally, when the second device is the first node, the method further includes:

[0431] 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;

[0432] The second device sends the first signal;

[0433] The second device receives a first measurement result corresponding to the first measurement from the second node.

[0434] Optionally, when the second device is the first node, the method further includes:

[0435] 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;

[0436] The second device sends second indication information to the second node;

[0437] 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.

[0438] Optionally, the second indication information includes at least one of the following:

[0439] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0440] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0441] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0442] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0443] a target processing method, the target processing method being used to indicate a signal processing method to be used by a recipient of the second indication information when determining a reference path;

[0444] at least part of the first information;

[0445] at least part of the second information;

[0446] 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.

[0447] Optionally, when the second device is a second node, before the second device receives the first indication information from the first device, the method further includes:

[0448] 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;

[0449] 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;

[0450] 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.

[0451] Optionally, when the second device is the first node, the method further includes:

[0452] The second device receives fourth configuration information from the perception function network element, where the fourth configuration information is used for second measurement;

[0453] The second device sends a second signal based on the fourth configuration information.

[0454] The perception processing method provided in the embodiment of the present application can be executed by a perception processing device. In the embodiment of the present application, the perception processing device provided in the embodiment of the present application is described by taking the perception processing method executed by the perception processing device as an example.

[0455] 9 , an embodiment of the present application further provides a perception processing device. As shown in FIG9 , the perception processing device 900 includes:

[0456] A first sending module 901 is configured to send first indication information from a first device 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 perception non-ideal factors in the first measurement. The first device is a first node, a perception function network element, or a second node.

[0457] 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;

[0458] 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.

[0459] Optionally, the perception processing device further includes:

[0460] 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;

[0461] 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.

[0462] Optionally, when the reference target includes a reconfigurable smart surface (RIS) device, the first information includes signal control information of the RIS device.

[0463] Optionally, 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.

[0464] Optionally, the first indication information includes at least one of the following:

[0465] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0466] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0467] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0468] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0469] 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;

[0470] at least part of the first information;

[0471] at least part of the second information;

[0472] 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.

[0473] Optionally, when the first device is the first node or the perception function network element, the perception processing device further includes:

[0474] A first execution module, configured to execute a first operation;

[0475] 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;

[0476] 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;

[0477] 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.

[0478] Optionally, when the first device is the first node, the perception processing apparatus further includes: a first receiving module,

[0479] The first sending module is further configured to send the first signal;

[0480] The first receiving module is configured to receive a first measurement result corresponding to the first measurement from a 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.

[0481] Optionally, when the first device is the second node, the perception processing device further includes:

[0482] a first receiving module, configured to receive 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 being used to backscatter the first signal with reference to a target, and the second configuration information being used for the first measurement;

[0483] A first execution module is configured to perform the first measurement based on the first target configuration information.

[0484] Optionally, when the first device is a second node, the perception processing device further includes:

[0485] 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.

[0486] Optionally, the second indication information includes at least one of the following:

[0487] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0488] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0489] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0490] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0491] a target processing method, the target processing method being used to indicate a signal processing method to be used by a recipient of the second indication information when determining a reference path;

[0492] at least part of the first information;

[0493] at least part of the second information;

[0494] 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.

[0495] Optionally, the perception processing device further includes:

[0496] A first determining module is configured to determine a first measurement result corresponding to the first measurement based on the first measurement and a target reference path, wherein the target reference path is determined based on the second indication information.

[0497] Optionally, when the first device is the first node or the perception function network element, the perception processing device further includes:

[0498] a first determining module, configured to determine second target configuration information based on the target information, the second target configuration information including at least one of third configuration information and fourth configuration information, the third configuration information being used to backscatter a second signal with reference to a target, the fourth configuration information being used for a second measurement, and the second signal being used for the second measurement;

[0499] a first execution module, configured to perform 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; and 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;

[0500] The first determining module is further configured to determine the first indication information based on a second measurement result corresponding to the second measurement;

[0501] The first sending module is further configured to send the first indication information to the second device.

[0502] Optionally, the first determining module is specifically configured to determine the first indication information based on a second measurement result corresponding to the second measurement and the target information.

[0503] Optionally, when the first device is the first node, the perception processing apparatus further includes: a first receiving module,

[0504] The first sending module is further configured to send a second signal based on the fourth configuration information;

[0505] The first receiving module is configured to receive 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.

[0506] 10 , an embodiment of the present application further provides a perception processing device. As shown in FIG10 , the perception processing device 1000 includes:

[0507] A second receiving module 1001 is configured to receive, by a second device, 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 a first measurement, where the first device is a first node, a perception function network element, or a second node;

[0508] 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;

[0509] 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.

[0510] Optionally, the first indication information is determined based on target information, and the target information includes at least one of the first information, the second information, the third information, and the fourth information;

[0511] 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.

[0512] Optionally, when the reference target includes a reconfigurable smart surface (RIS) device, the first information includes signal control information of the RIS device.

[0513] Optionally, 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.

[0514] Optionally, the first indication information includes at least one of the following:

[0515] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0516] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0517] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0518] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0519] 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;

[0520] at least part of the first information;

[0521] at least part of the second information;

[0522] 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.

[0523] Optionally, when the second device is the second node, the perception processing apparatus further includes: a second execution module and a second determination module,

[0524] 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;

[0525] The second execution module is configured to perform the first measurement based on the first target configuration information;

[0526] 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.

[0527] Optionally, the perception processing device further includes:

[0528] The second sending module is used to send the first measurement result to at least one of the first node and the perception function network element.

[0529] Optionally, when the second device is the first node, the perception processing apparatus further includes: a second sending module,

[0530] 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;

[0531] The second sending module is used to send the first signal;

[0532] The second receiving module is further configured to receive a first measurement result corresponding to the first measurement from the second node.

[0533] Optionally, when the second device is the first node, the perception processing apparatus further includes:

[0534] A second determining module is configured to determine second indication information based on the first indication information, where the second indication information is used to indicate relevant information about the multipath, and the relevant information about the multipath is used to eliminate a perceived non-ideal factor in the first measurement;

[0535] A second sending module, configured to send second indication information to the second node;

[0536] 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.

[0537] Optionally, the second indication information includes at least one of the following:

[0538] At least one target index, where the target index is used to indicate one path in the multipath of the target dimension;

[0539] Target conditions, where the target conditions are used to indicate the range of the target dimension where the reference path is located;

[0540] Target features, where the target features are used to indicate feature information of the reference path in the target dimension;

[0541] Target parameters, where the target parameters are used to indicate parameter information of the reference path;

[0542] a target processing method, the target processing method being used to indicate a signal processing method to be used by a recipient of the second indication information when determining a reference path;

[0543] at least part of the first information;

[0544] at least part of the second information;

[0545] 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.

[0546] Optionally, when the second device is the first node, the perception processing apparatus further includes: a second sending module,

[0547] The second receiving module 1001 is further configured to receive fourth configuration information from a perception function network element, where the fourth configuration information is used for the second measurement;

[0548] The second sending module is configured to send a second signal based on the fourth configuration information.

[0549] The perception processing device in the embodiment of the present application can 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 can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0550] The perception processing device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 8 and achieve the same technical effects. To avoid repetition, they will not be repeated here.

[0551] As shown in Figure 11, an embodiment of the present application also provides a communication device 1100, including a processor 1101 and a memory 1102, and the memory 1102 stores programs or instructions that can be run on the processor 1101. For example, when the communication device 1100 is a terminal or a network side device, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned perception processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0552] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figures 2 or 8. This terminal embodiment corresponds to the first device-side method embodiment described above or to the second device-side method embodiment described above. Each implementation process and implementation method of the aforementioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 12 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0553] The terminal 1200 includes but is not limited to: 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 at least some of the components of the processor 1210.

[0554] Those skilled in the art will appreciate that the terminal 1200 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1210 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG12 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0555] It should be understood that in an embodiment of the present application, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processor 12041 processes the image data of a static picture or video 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 a touch panel 12071 and at least one of 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. 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 repeated here.

[0556] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1201 may transmit the data to the processor 1210 for processing. Furthermore, the RF unit 1201 may send uplink data to the network-side device. Typically, the RF unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0557] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may 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 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may 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 may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0558] Processor 1210 may include one or more processing units. Optionally, processor 1210 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1210.

[0559] Wherein, when the terminal is a first device, the radio frequency unit 1201 is configured for the first device to send first indication information to the second device, where the first indication information is used to indicate multipath related information, where the multipath related information is used to eliminate the perception non-ideal factors of the first measurement, and the first device is a first node, a perception function network element, or a second node;

[0560] 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;

[0561] In which, when the first device is a first node, 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.

[0562] When the terminal is a second device, the radio frequency unit 1201, the second device receives first indication information from the first device, where the first indication information is used to indicate relevant information of the multipath, where the relevant information of the multipath is used to eliminate a perception non-ideal factor of the first measurement, and the first device is a first node, a perception function network element, or a second node;

[0563] 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;

[0564] 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; 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.

[0565] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0566] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiments shown in Figures 2 to 8. This network-side device embodiment corresponds to the first device-side method embodiment described above or to the second device-side method embodiment described above. Each implementation process and implementation method of the aforementioned method embodiments are applicable to this network-side device embodiment and can achieve the same technical effects.

[0567] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 13, network-side device 1300 includes an antenna 1301, a radio frequency device 1302, a baseband device 1303, a processor 1304, and a memory 1305. Antenna 1301 is connected to radio frequency device 1302. In the uplink direction, radio frequency device 1302 receives information via antenna 1301 and sends the received information to baseband device 1303 for processing. In the downlink direction, baseband device 1303 processes the information to be transmitted and sends it to radio frequency device 1302. Radio frequency device 1302 processes the received information and then sends it through antenna 1301.

[0568] The method executed by the first device or the second device in the above embodiments may be implemented in the baseband device 1303 , which includes a baseband processor.

[0569] The baseband device 1303 may, for example, include at least one baseband board, on which multiple chips are arranged, as shown in Figure 13, one of which is a baseband processor, for example, which is connected to the memory 1305 through a bus interface to call the program in the memory 1305 to execute the first device operation or the second device operation shown in the above method embodiment.

[0570] The network side device may further include a network interface 1306 , which is, for example, a Common Public Radio Interface (CPRI).

[0571] Specifically, the network side device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 1305 and can be run on the processor 1304. The processor 1304 calls the instructions or programs in the memory 1305 to execute the methods executed by each module shown in Figure 9 or 10, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

[0572] Specifically, the embodiment of the present application further provides a network side device. As shown in FIG14 , the network side device 1400 includes: a processor 1401, a network interface 1402, and a memory 1403. The network interface 1402 is, for example, a common public radio interface (CPRI).

[0573] Specifically, the network side device 1400 of the embodiment of the present application also includes: instructions or programs stored in the memory 1403 and executable on the processor 1401. The processor 1401 calls the instructions or programs in the memory 1403 to execute the methods executed by the modules shown in FIG9 or FIG10 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0574] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned perception processing method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0575] 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 disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0576] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned perception processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0577] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0578] An embodiment of the present application further provides a computer program / program product, which includes computer instructions. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned perception processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0579] An embodiment of the present application also provides a wireless communication system, including: a first device and a second device, wherein 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.

[0580] It should be noted that, in this article, the terms "comprise", "include" 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 includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the 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 the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0581] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0582] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A perception processing method, comprising: 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, further comprising: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein 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, wherein: 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, wherein 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, wherein: 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, wherein: 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, wherein: 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, wherein 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, 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.

15. The method according to claim 14, wherein 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, comprising: 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, wherein: 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, wherein 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, wherein: 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, wherein 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, wherein: 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 of claim 16, 18 or 20, wherein: 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, wherein 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, wherein: 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 of claim 16, 18 or 21, wherein 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, wherein 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, comprising: 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, further comprising: 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, wherein: 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, wherein: 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, comprising: 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, wherein: 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, wherein: 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 comprising a processor and a memory, wherein 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, the steps of the perception processing method according to any one of claims 1 to 27 are implemented.

36. A network-side device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the perception processing method according to any one of claims 1 to 27 are implemented.

37. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the perception processing method according to any one of claims 1 to 27.

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