Measurement reporting method and device, terminal and network side equipment

Abstract

The invention discloses a measurement reporting method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the measurement reporting method comprises the steps that the terminal receives configuration information related to a target path from the network side equipment, and the target path comprises at least one of the following items: multiple paths passing through a sensing target, multiple paths passing through a first reflector, multiple paths passing through a second reflector, multiple paths passing through a third reflector and multiple paths passing through a fourth reflector; a direct path between the terminal and the network side device; the first reflector is a static reflector in the environment; the terminal measures a first signal sent by the network side device according to the configuration information related to the target path to obtain first information, and the first information comprises at least one of the following items: precoding information related to the target path and a measurement result related to the target path; and the terminal reports the first information to the network side equipment.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a measurement reporting method, device, terminal, and network-side equipment. Background Technology

[0002] With the development of mobile communication technology, future mobile communication systems, such as Beyond 5th Generation (B5G) systems or 6th generation (6G) systems, will emerge. th In addition to communication capabilities, 6G communication systems will also have sensing capabilities. That is, they will be able to sense the location, distance, speed and other information of target objects by sending and receiving sensing-related signals (such as signals related to sensing services or signals related to integrated communication and sensing services), or to detect, track, identify and image target objects, events or environments.

[0003] Current mobile communication systems rely solely on Channel State Information (CSI) measurements and feedback to enable network-side devices to acquire communication channel information and determine communication precoding for optimal performance. In sensing applications, multiple paths often exist between sensing nodes; however, current technologies lack solutions for acquiring this path information, thus impacting sensing performance. Summary of the Invention

[0004] This application provides a measurement and reporting method, apparatus, terminal, and network-side device, which can provide a way to measure and report information about the target path between sensing nodes, thereby improving sensing performance.

[0005] Firstly, a measurement reporting method is provided, which includes:

[0006] The terminal receives configuration information related to the target path from the network-side device. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0007] The terminal measures the first signal sent by the network-side device according to the target path-related configuration information to obtain first information, the first information including at least one of the following: the precoding information associated with the target path, and the measurement result associated with the target path;

[0008] The terminal reports the first information to the network-side device.

[0009] Secondly, a measurement reporting device is provided, the device comprising:

[0010] The receiving module is configured to receive configuration information related to the target path from the network-side device. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0011] The processing module is configured to measure the first signal sent by the network-side device according to the target path-related configuration information to obtain first information, wherein the first information includes at least one of the following: precoding information associated with the target path, and measurement results associated with the target path;

[0012] The sending module is used to report the first information to the network-side device.

[0013] Thirdly, a measurement reporting method is provided, which includes:

[0014] The network-side device sends configuration information related to the target path to the terminal. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0015] The network-side device receives first information from the terminal, the first information including at least one of the following: precoding information associated with the target path, and measurement results associated with the target path.

[0016] Fourthly, a measurement reporting device is provided, the device comprising:

[0017] The sending module is used to send configuration information related to the target path to the terminal. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0018] A receiving module is configured to receive first information from the terminal, the first information including at least one of the following: pre-encoded information associated with the target path, and measurement results associated with the target path.

[0019] Fifthly, a measuring apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0020] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0021] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive configuration information related to a target path from a network-side device, the target path including at least one of the following: a multipath passing through a sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment;

[0022] The processor is configured to measure the first signal sent by the network-side device according to the target path-related configuration information to obtain first information, the first information including at least one of the following: precoding information associated with the target path, and measurement results associated with the target path;

[0023] The communication interface is also used to report the first information to the network-side device.

[0024] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the third aspect.

[0025] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send configuration information related to a target path to a terminal, the target path including at least one of the following: a multipath passing through a sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment;

[0026] The communication interface is also used to receive first information from the terminal, the first information including at least one of the following: precoding information associated with the target path, and measurement results associated with the target path.

[0027] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect.

[0028] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the measurement reporting method as described in the first aspect, and the network-side device can be used to perform the steps of the measurement reporting method as described in the third aspect.

[0029] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0030] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the third aspect.

[0031] In this embodiment, the terminal receives target path-related configuration information from the network-side device. The target path includes at least one of the following: a multipath passing through a sensing target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device. The first reflector is a static reflector in the environment. The terminal measures a first signal sent by the network-side device according to the target path-related configuration information to obtain first information. The first information includes at least one of the following: precoding information associated with the target path and measurement results associated with the target path. The terminal reports the first information to the network-side device. That is, this embodiment provides a way to measure and report target path information between sensing nodes (i.e., the terminal and the network-side device), enabling the network-side device to obtain target path information and thereby improve sensing performance based on the target path information. Attached Figure Description

[0032] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the CSI-RS time-frequency resource RRC configuration provided in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the CSI-RS physical resource configuration provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the periodic CSI-RS time slot resource configuration provided in an embodiment of this application;

[0036] Figure 5a This is a flowchart illustrating the periodic CSI-RS signal configuration provided in an embodiment of this application;

[0037] Figure 5b This is a flowchart of the non-periodic CSI-RS signal configuration provided in the embodiments of this application;

[0038] Figure 6a These are schematic diagrams of various CSI-RS CDMs provided in the embodiments of this application;

[0039] Figure 6b This is a schematic diagram of the fd-CDM2 orthogonal code provided in an embodiment of this application;

[0040] Figure 7 This is a flowchart of a measurement reporting method provided in an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of multipath propagation in a bistatic sensing scenario provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of the channel response in the first dimension provided in the embodiments of this application;

[0043] Figure 10a This is a schematic diagram illustrating the orthogonality of different resources / resource sets through TDM as provided in the embodiments of this application;

[0044] Figure 10b This is a schematic diagram illustrating that some different resources / resource sets are orthogonal through FDM and some different resources / resource sets are orthogonal through TDM, as provided in the embodiments of this application.

[0045] Figure 11 This is a flowchart of another measurement reporting method provided in the embodiments of this application;

[0046] Figure 12 This is a structural diagram of a measurement reporting device provided in an embodiment of this application;

[0047] Figure 13 This is a structural diagram of another measurement and reporting device provided in an embodiment of this application;

[0048] Figure 14 This is a structural diagram of the communication device provided in the embodiments of this application;

[0049] Figure 15 This is a structural diagram of the terminal provided in the embodiments of this application;

[0050] Figure 16 This is a structural diagram of the network-side device provided in the embodiments of this application. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0052] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0053] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0054] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0055] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.In this context, a base station may be referred to as a Node B (NB), Evolved Node B (eNB), 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, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0056] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0057] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0058] For ease of understanding, the following describes some aspects of the embodiments of this application:

[0059] I. Integrated Communication and Sensing / Integrated Synesthesia

[0060] Wireless communication 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 some extent, system architecture. In recent years, traditional radar has been evolving towards more general wireless sensing. Wireless sensing broadly refers to retrieving 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, departure angle, and Doppler effect. For sensing target physical characteristics, this can be achieved by measuring the inherent signal patterns of devices / objects / activities. These two sensing methods can be referred to as sensing parameter estimation and pattern recognition, respectively. In this sense, wireless sensing refers to a more general sensing technology and application using radio signals.

[0061] Integrated Sensing and Communication (ISAC) has the potential to integrate wireless sensing into mobile networks, referred to here as Perceptive Mobile Networks (PMNs), see related technology 1 (Rahman, Md Lushanur, et al. "Enabling joint communication and radio sensing in mobile networks – a survey." arXiv preprint arXiv:2006.07559(2020)). Perceptive Mobile Networks can provide communication and wireless sensing services simultaneously, and due to their large broadband coverage and robust infrastructure, they are expected to become a ubiquitous wireless sensing solution. Perceptive Mobile Networks can be widely used in communication and sensing in transportation, communication, energy, precision agriculture, and security fields. They can also provide complementary sensing capabilities to existing sensor networks, have unique day and night operation capabilities, and can penetrate fog, foliage, and even solid objects. Some common sensing services are shown in Table 1 below.

[0062] Table 1 Common Sensing Service Classifications

[0063]

[0064]

[0065] In mobile communication networks, base stations (including one or more Transmission Reception Points (TRPs) on the base station) and User Equipment (UEs) (including one or more sub-arrays / panels on the UEs) can serve as sensing nodes participating in integrated sensing / communication services. Typical UEs include mobile terminals and portable tablets. By sending and receiving a first signal between nodes, sensing of a certain area or a specific target can be achieved. The first signal can be a signal that does not contain transmission information, such as existing LTE / NR synchronization and reference signals, including synchronization signals and physical broadcast channel (PBCH block, SSB) signals, channel state information-reference signals (CSI-RS), demodulation reference signals (DMRS), sounding reference signals (SRS), positioning reference signals (PRS), phase tracking reference signals (PTRS), etc.; it can also be a single-frequency continuous wave commonly used in radar. The new signal can be a wave (CW), a frequency-modulated continuous wave (FMCW), or an ultra-wideband Gaussian pulse, etc.; 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 sensing signal that carries certain information and has good sensing performance. For example, the new signal is formed by splicing / combining / superimposing at least one dedicated sensing signal / reference signal and at least one communication signal in the time domain and / or frequency domain.

[0066] The devices in the core network, such as the Access and Mobility Management Function (AMF), Sensing Function (SF), communication application servers, and sensing application servers in the core network, are referred to as the first devices. The node receiving the first signal is referred to as the first node. The node transmitting the first signal is referred to as the second node.

[0067] II. Specific Configuration of CSI-RS Signal Resources

[0068] This section explains how NR configures CSI-RS via Radio Resource Control (RRC) signaling. Although the configuration of other reference signals differs from that of CSI-RS, the basic configuration methods are the same and can be emulated by following the instructions in this section; therefore, they will not be elaborated upon here.

[0069] It is important to note that when configuring CSI-RS, the network must first consider the pre-configured system signals and pre-reserved system channels in the NR system, such as Synchronization Signal Blocks (SSBs). SSBs include the Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Physical Broadcast Channel (PBCH), and PBCH DMRS. Therefore, the configured reference signal resources cannot overlap with the resources used by these system signals and channels.

[0070] The CSI-RS signal is configured by the RRC's Information Elements (IEs), namely CSI-MeasConfig. CSI-MeasConfig includes the information elements NZP-CSI-RS-Resource, NZP-CSI-RS-ResourceSet, and CSI-ResourceConfig.

[0071] like Figure 2As shown, the information element NZP-CSI-RS-Resource is used to configure the physical resources of CSI-RS, that is, the mapping relationship between the CSI-RS signal and the resource elements (REs) allocated in the time and frequency domain of Orthogonal Frequency Division Multiplexing (OFDM). The resource pool for configuring physical resources of CSI-RS can have up to 192 different types of physical resources, i.e., M=192. Each CSI-RS physical resource has its own corresponding identifier (ID).

[0072] The configured CSI-RS physical resources are organized into CSI-RS resource sets (i.e., resource sets) through the information element CSI-RS-ResourceSet. The total number of resource sets can be up to 64, i.e., N=64, and each CSI-RS resource set has its own unique ID. Each CSI-RS resource set is selected from the CSI-RS physical resource pool, and each resource set can contain up to 64 different types of physical resources, i.e., M. n =64, where n is the index of the resource set, 0≤n≤N.

[0073] The information element CSI-ResourceConfig is used to configure CSI-RS resource configuration sets. The number of CSI-RS resource configuration sets is J1, and the total number of these sets with other resource configuration sets (i.e., an SSB resource configuration set and an IM resource configuration set J2) can reach a maximum of 112, meaning J1 + J2 = J ≤ 112. CSI-RS resource configuration sets are selected from CSI-RS resource sets, and each CSI-RS resource configuration set can have a maximum of 16 different types of CSI-RS resource sets, i.e., N. l =16, where 0≤l≤J1. Each CSI-RS resource configuration set has its own corresponding ID. Additionally, CSI-ResourceConfig specifies which CSI-ResourceConfig to use for measurement. The measurement type and its corresponding CSI-ResourceConfig ID are determined through a mapping table.

[0074] Specifically, the CSI-RS time-frequency domain resources are configured in each slot and the CSI transmission timing in each slot through the RRC parameters CSI-RS-ResourceMapping and CSI-ResourcePeriodicityAndOffset in the information element NZP-CSI-RS-Resource.

[0075] More specifically, within each time slot, the physical resources of CSI-RS are implemented through the information element CSI-RS-ResourceMapping. The information element CSI-RS-ResourceMapping primarily configures the following resource parameters:

[0076] Frequency Domain Allocation: The location of OFDM frequency domain resources is implemented through bit mapping. It indicates any of the 12 REs based on the resource density within a Resource Block (RB). The index of the first RE occupied here is k0.

[0077] First OFDM Symbol in Time Domain: The time-domain location of the first OFDM symbol in each RB, which can indicate any of the 14 OFDM symbols. The index of the first OFDM symbol occupied here is 10.

[0078] Code Division Multiplexing (CDM) Type: The type of physical resource, i.e., no Code Division Multiplexing (noCDM) or Code Division Multiplexing (CDM). CDM resource type resources are designed for Multiple-Input Multiple-Output (MIMO) reference signals.

[0079] Density: The density of CSI-RS in each OFDM symbol, which can be 3, 1 or 0.5, and is represented by the parameter p.

[0080] In the NR standard, parameters k0, l0, p, and cdm-Type are represented in Table 7.4.1.5.3-1 of TS 38.211. Figure 3 The configuration parameters for the example on the left are: OFDM frequency domain resource location is 5, the time domain location of the first OFDM symbol is 2, the physical resource type is noCDM, and the density in each OFDM symbol is 1; Figure 3 The configuration parameters for the intermediate example shown are: OFDM frequency domain resource location is 2, the time domain location of the first OFDM symbol is 7, the physical resource type is noCDM, and the density in each OFDM symbol is 3; Figure 3The configuration parameters for the example shown on the right are: OFDM frequency domain resource location is 3, the first OFDM symbol time domain location is 12, the physical resource type is noCDM, and the density in each OFDM symbol is 0.5.

[0081] The starting position and number of RBs of the CSI resource in the frequency domain are given by the RRC parameters startingRB and nrofRBs in the information element CSI-FrequencyOccupation, respectively. Specifically, startingRB defines the starting PRB of the CSI resource relative to Common Resource Block #0 (CRB#0), and is numerically the number of PRB intervals from CRB#0, and must be a multiple of 4; nrofRBs defines the number of PRBs spanned by the CSI resource. It must also be a multiple of 4, and the minimum configurable number is the minimum of 24 and the associated bandwidth part (BWP). If the configured value is greater than the width of the associated BWP, the UE should assume that the actual CSI-RS bandwidth is equal to the width of the associated BWP.

[0082] The sensing signal can be configured as a periodic sensing signal or a non-periodic sensing signal. When the sensing signal is configured as a periodic sensing signal, the sensing signal parameter T... CSI-RS and Δ CSI-RS It can determine the periodic characteristics of the sensed signal.

[0083] More specifically, for periodic CSI-RS, the CSI transmission timing within a time slot is determined by the frame index and the RRC parameter CSI-ResourcePeriodicityAndOffset. Assume the configured CSI-RS transmission occurs every T-th... CSI-RS In the time slot, where T CSI-RS It is a resource cycle, and its range can be T. CSI-RS = 4, 5, 8, 10, 16, 20, ..., 320, 640, CSI-RS position offset using Δ CSI-RS express.

[0084] Figure 4 The CSI-RS resource cycle T is shown. CSI-RS =4 and T CSI-RS =5 in two settings, where the CSI-RS offset is Δ CSI-RS =0 and Δ CSI-RS =3.

[0085] It is worth noting that the periodic CSI-RS offset is calculated based on the activation timing.

[0086] When the sensing signal is configured as an aperiodic sensing signal, the corresponding downlink control information (DCI) and the offset for transmitting CSI-RS are determined based on the parameter aperiodicTriggeringOffset in the information element NZP-CSI-RS-ResourceSet. In other words, aperiodicTriggeringOffset is the offset between the time slot that triggers the DCI of the aperiodic CSI-RS resource set and the time slot for transmitting the CSI-RS resource set.

[0087] like Figure 5a As shown, when the sensing signal is configured as a periodic sensing signal, the network will send CSI-RS according to the configured periodic time slot; similarly, the UE will receive CSI-RS according to the configured periodic time slot and calculate the required CSI-RS related measurements. The UE's sensing-configured PUSCH feeds back the CSI-RS related measurements. In the CSI-MeasConfig IE, the CSI-RS period T CSI-RS It is the CSI-ResourcePeriodicityAndOffset configuration, and the CSI measurement period T Meas It is determined by the resource period configured according to the Physical Uplink Sharing Channel (PUSCH). Of course, through RRC configuration, T... CSI-RS =T Meas .

[0088] like Figure 5b As shown, when the sensing signal is configured as a non-periodic sensing signal, the network side triggers CSI-RS transmission and measurement by sending DCI0_1 or Media Access Control Element (MAC CE) + DCI0_1. The triggered CSI-RS is transmitted after offsetting aperiodicTriggeringOffset from the DCI time slot. The triggered measurement is fed back after offsetting CSIreportSlotOffsetList from the DCI time slot. It is worth noting that CSIreportSlotOffsetList and PUSCH configuration offsets are the same.

[0089] The number of ports in a CSI-RS resource can be single or multi-port, up to a maximum of 32 ports. CDM (Conditional Mapping) is used in multi-port mapping, meaning multiple CSI-RS ports can be distinguished and mapped on the same time-frequency resource using CDM. Currently, there are four CDM types in NR: noCDM, fd-CDM2, cdm4-FD2-TD2, and cdm8-FD2-TD4. Among them, noCDM is the simplest, with CSI-RS mapped only on one RE and no concept of code division; fd-CDM2 implements the multiplexing of 2 ports on 2 REs with 2 subcarriers in the frequency domain and 1 OFDM symbol in the time domain; cdm4-FD2-TD2 implements the multiplexing of 4 ports on 4 REs with 2 subcarriers in the frequency domain and 2 OFDM symbols in the time domain; and cdm8-FD2-TD4 implements the multiplexing of 8 ports on 8 REs with 2 subcarriers in the frequency domain and 4 OFDM symbols in the time domain. Figure 6a and Figure 6b The above are schematic diagrams of various CDMs.

[0090] The CDM type of CSI-RS is configured through the RRC parameter cdm-Type. The orthogonal code w used by CSI-RS... f (k′)·w t (l′) is obtained by querying Tables 7.4.1.5.3-2 to 7.4.1.5.3-5 of TS 38.211. The indexes k′ and l′ take values ​​of 0 or 1, which affect the time-frequency position of CSI-RS resources and also control the value of the orthogonal code, and are obtained through Table 7.4.1.5.3-1 of TS38.211.

[0091] In the information element CSI-RS-ResourceMapping, the number of ports for CSI-RS is configured through the parameter nrofPorts. The values ​​can be {p1, p2, p4, p8, p12, p16, p24, p32}, corresponding to 1, 2, 4, 8, 12, 24, and 32 ports respectively. Table 7.4.1.5.3-1 of TS 38.211 specifies several combinations of nrofPorts values ​​and cdm-Type, where the time-frequency resource location (k, l) of CSI-RS is affected by... The combined influence of (k′,l′), and It is configured and calculated through the bitmap of the resource parameter frequencyDomainAllocation in the information element CSI-RS-ResourceMapping or CSI-RS-ResourceConfigMobility. The specific calculation method is as follows:

[0092] [b3…b0],k i-1 =f(i), for column 1 (row1) in Table 7.4.1.5.3-1;

[0093] [b 11 …b0],k i-1 =f(i), for column 2 (row2) in Table 7.4.1.5.3-1;

[0094] [b2…b0],k i-1 =4f(i), referring to column 4 (row4) in Table 7.4.1.5.3-1;

[0095] [b5…b0],k i-1 =2f(i), for other cases.

[0096] Where f(i) is the index of the bitmap vector from right to left, starting from 0, where the bitmap element is 1.

[0097] The group size of a CDM is L∈{1,2,4,8}. This means that when the number of ports nrofPorts (assuming a value of N) is greater than the group size of the CDM used, N / L CDM groups are needed to implement multi-port resource mapping. The index of the CDM group corresponds to the CDM group index j column in Table 7.4.1.5.3-1 of TS 38.211. The index order of the CDM groups is first increasing in the frequency domain, and then increasing in the time domain.

[0098] Within each CDM Group, an index s is used to identify the orthogonal code division sequences of different ports. s corresponds to the index column in Tables 7.4.1.5.3-2 to 7.4.1.5.3-5 of TS38.211. The port number p mapping relationship specified by NR is p = 3000 + s + jL, j = 0, 1, ..., N / L-1; s = 0, 1, ..., L-1.

[0099] III. Channel State Information (CSI) Feedback in NR

[0100] In 5G communication systems, the introduction of massive MIMO technology can significantly improve spectral efficiency. However, this requires the base station to know the downlink channel information in order to apply appropriate precoding to the data channel. For Frequency Division Duplexing (FDD) simplex, the uplink and downlink channels are not completely reciprocal, and the base station cannot directly obtain downlink channel information, requiring the terminal to feed back CSI, including the precoding matrix. Therefore, 5G employs various codebooks for precoding matrix feedback.

[0101] (1) Feedback Configuration

[0102] The network associates each CSI reporting configuration (CSI-ReportConfig) with a reference signal resource configuration (CSI-ResourceConfig) for channel measurement, a reference signal resource configuration for interference measurement associated with CSI-IM resources, and / or a reference signal resource configuration for interference measurement associated with NZP-CSIRS resources. The terminal obtains the corresponding channel information by measuring the reference resources associated with these resource configurations, further obtains the corresponding CSI information based on the codebook configuration information and report content associated with the CSI report configuration, and provides uplink channel feedback.

[0103] In the reference signal resource configuration (CSI-ResourceConfig) used for channel measurements, at least one CSI-RS resource set (such as a non-zero power CSI-RS resource set, NZP-CSI-RS-ResourceSet) is associated. For periodic and semi-persistent reporting, only one CSI-RS resource set is configured. For aperiodic reporting, multiple CSI-RS resource sets can be configured, but the base station will indicate which CSI-RS resource set to use for reporting. Each CSI-RS resource set will contain at least one CSI-RS resource (such as a non-zero power CSI-RS resource, NZP-CSI-RS-Resource).

[0104] (2) Codebook Feedback

[0105] The Type-I codebook of Release 15 (R15) can be represented as W = W1W2, where W1 is the wideband reporting, indicating the selection of one or more beams. Taking a single beam as an example... Where b is a two-dimensional discrete Fourier transform (2D-DFT) vector, and W2 is the sub-band report used to select the beam and adjust the phase between polarizations.

[0106] The R15 Type-II codebook uses a linear combination of multiple beams to represent a precoding vector, thereby improving feedback accuracy. It can be represented as W = W1W2, where W1 represents multiple spatial beams selected by the broadband, and W2 is the subband report, representing the linear combination coefficients of multiple beams in each subband.

[0107] Release 16 (R16) enhanced the eType-II codebook, further utilizing frequency domain correlation to reduce overhead. It can be represented as W = W1W2W f Where W1 represents the selected multiple spatial beams, W f The frequency domain basis, representing the frequency domain selection, can be represented by a Discrete Fourier Transform (DFT) vector, and W2 represents the linear combination coefficients of different spatial beam-frequency basis pairs.

[0108] The version 17 (R17) feedback type II (FeType-II) codebook is a port selection codebook in the form W = W1W2W f Where W1 represents the port selection matrix, used to select ports, W f The frequency domain basis representing the frequency domain selection can be represented by a DFT vector, and W2 represents the linear combination coefficients of different port selection vector-frequency domain basis pairs.

[0109] In addition to the precoding information mentioned above, CSI also reports the Rank Indicator (RI) and Channel Quality Indicator (CQI).

[0110] IV. Channel Correlation Evaluation Indicators

[0111] The aforementioned channel correlation evaluation metrics may include at least one of the following:

[0112] Correlation Matrix Distance (CMD): This measure measures the correlation / difference between two channel correlation matrices of dimension n×n, where n>2. The calculation method is described in related technique 2 (Herdin, Markus, et al. "Correlation matrix distance, a meaningful measure for evaluation of non-stationary MIMO channels." 2005 IEEE 61st Vehicular Technology Conference. Vol. 1. IEEE, 2005). The channel correlation matrix can be any one of the following: spatial domain channel correlation matrix, time domain channel correlation matrix, or frequency domain channel correlation matrix.

[0113] Normalized Correlation Matrix Distance (NCMD): Same as CMD, calculation method see related technology 3 (Aldayel, Omar, Mats Bengtsson, and Saleh A. Alshebeili. "Evaluation of MIMO channel non-stationarity." 21st European Signal Processing Conference (EUSIPCO 2013). IEEE, 2013);

[0114] Channel subspace distance: used to measure the similarity between two channel subspaces of the same dimension. The calculation method is described in related technology 3. The channel subspace can be part or all of the channel subspace.

[0115] Channel vector similarity parameters include at least one of the following:

[0116] Channel vector distance parameters include: Euclidean distance, Manhattan distance, Chebyshev distance, Minkowski distance, Standardized Euclidean distance, Mahalanobis distance, and Lance Williams distance.

[0117] The cosine-like parameters of the channel vector angle include: cosine similarity and Tanimoto coefficient.

[0118] Channel vector correlation coefficient: also known as Pearson correlation coefficient;

[0119] The similarity parameters of the channel vector element set include: Jaccard Similarity Coefficient and Jaccard Distance;

[0120] The channel vector is the frequency domain channel transfer function (frequency domain channel response) or channel impulse response (time domain channel response) between any two antennas on the transmitter and / or receiver.

[0121] The channel parameter vector similarity parameter includes at least one of the following:

[0122] Channel parameter vector distance class parameters;

[0123] Channel parameter vector cosine class parameters;

[0124] Channel parameter vector correlation coefficient;

[0125] Similarity parameter of the set of elements in the channel parameter vector;

[0126] The channel parameter vector is a parameter vector consisting of at least two different channel parameters obtained by parameter estimation from the channel vector, or a parameter vector consisting of sampled samples of the same channel parameter at different times and / or frequencies and / or different local physical locations.

[0127] The channel parameters include:

[0128] Channel power domain parameters include at least one of the following: path loss, shadowing fading, average power, Rician K factor, and polarization crossover ratio;

[0129] Channel delay domain parameters include at least one of the following: average delay spread, root mean square delay spread, and coherence bandwidth;

[0130] Channel Doppler domain parameters include at least one of the following: average Doppler frequency shift, root mean square Doppler spread, and coherence time;

[0131] Channel directivity parameters include at least one of the following: transmitter-side direction spread, receiver-side direction spread, global departure azimuth spread, global departure elevation spread, global arrival azimuth spread, and global arrival elevation spread.

[0132] Multipath / multipath cluster parameters include at least one of the following: number of clusters, average number of sub-paths within a cluster, cluster delay spread, cluster departure azimuth spread, cluster departure pitch spread, cluster arrival azimuth spread, and cluster arrival pitch spread; it should be noted that "multipath", "path", "multipath cluster" and "cluster" have the same meaning, and for consistency, "cluster" will be used below.

[0133] Channel eigenvalue parameters include at least one of the following: channel eigenvalue, channel eigenvalue extension, ratio of maximum to minimum channel eigenvalue, channel eigenvector, channel singular value, channel singular value extension, ratio of maximum to minimum channel singular value, and channel singular vector;

[0134] Local airspace channel correlation indicators include at least one of the following:

[0135] Angular power spectrum, including at least one of the following: departure azimuth power spectrum, departure elevation power spectrum, arrival azimuth power spectrum, and arrival elevation power spectrum;

[0136] Wavenumber spectrum: A continuous or discrete spectrum obtained by performing Gans mapping on the angular power spectrum. See related technique 4 (Intarapanich, Apichart, et al. "Spatial correlation measurements for broadband MIMO wireless channels." IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall.2004. Vol.1. IEEE, 2004).

[0137] Spatial Correlation Function: The continuous or discrete spectrum obtained by performing an inverse fast fourier transform (IFFT) on the wavenumber spectrum; see related technique 4.

[0138] The calculation method for the Spatial Correlation Matrix is ​​described in Related Technique 4.

[0139] The measurement reporting method provided in this application will be described in detail below with reference to the accompanying drawings, through some embodiments and application scenarios.

[0140] Please see Figure 7 , Figure 7 This is a flowchart of a measurement reporting method provided in an embodiment of this application. This method can be executed by a terminal, such as... Figure 7 As shown, it includes the following steps:

[0141] Step 701: The terminal receives configuration information related to the target path from the network-side device. The target path includes at least one of the following: a multipath passing through the sensing target, a multipath passing through the first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0142] In this embodiment, the terminal can be the receiving node of the first signal, and the network-side device can be the sending node of the first signal. The relevant content of the first signal is described in the foregoing description and will not be repeated here.

[0143] The first reflector can be any static reflector in the environment. For example, the static reflector can include, but is not limited to, static reflective objects (e.g., buildings, trees, etc.), signal reflecting devices, etc. The signal reflecting devices can include, but are not limited to, reconfigurable intelligence surfaces (RIS), backscatter devices, radio frequency identification (RFID) tags, etc. The first reflector can include at least one reflector. It should be noted that the reflector involved in the embodiments of this application can also be referred to as an environmental reflector.

[0144] The aforementioned multipath passing through the sensing target can be understood as the multipath between the network-side device and the terminal that passes through the sensing target. Optionally, the multipath passing through the sensing target may include at least one of the following:

[0145] The first target path is used to represent the multiple paths from the network-side device to the terminal via the sensing target;

[0146] The second target path is used to represent the multipath from the network-side device to the terminal via the second reflector and the sensing target in sequence;

[0147] The third target path is used to represent the multipath from the network-side device to the terminal via the sensing target and the third reflector in sequence;

[0148] The fourth target path is used to represent the multipath from the network-side device to the terminal via the fourth reflector, the sensing target, and the fifth reflector.

[0149] For example, see Figure 8 The aforementioned multipath propagation through the target can be further divided into the following four categories:

[0150] The first target path is used to represent the multipath from the network-side device to the sensing target and then to the terminal, which does not pass through environmental reflectors, for example... Figure 8 Multipath OAP in;

[0151] The second target path is used to represent the multipath from network-side devices to environmental reflectors, then to the sensed target, and finally to the terminal; for example... Figure 8 Multipath OBAP in;

[0152] The third target path is used to represent the multipath from network-side devices to the sensed target, then to the environmental reflector, and finally to the terminal; for example... Figure 8 Multipath OACP in [the context of OACP];

[0153] The fourth target path is used to represent the multipath from the network-side device to the environmental reflector, then to the sensed target, then back to the environmental reflector, and finally to the terminal; for example... Figure 8 Multipath OBACP in [the context of OBACP].

[0154] The multipath propagation path described above, passing through the first reflector, can be understood as the multipath path between the network-side device and the terminal that passes through the first reflector. This multipath path does not pass through the sensing target; for example... Figure 8 Multipath OBP, multipath ODEP, etc.

[0155] The direct path between the aforementioned terminal and network-side equipment does not pass through the sensing target or reflective objects, for example, Figure 8 Multipath OP in .

[0156] It should be noted that, in Figure 8 In the diagram, sensing node O' is the mirror image of sensing node O relative to the reflector where reflection point B is located, and sensing node P' is the mirror image of sensing node P relative to the reflector where reflection point C is located.

[0157] In some optional embodiments, at least one of the first, second, third, fourth, and fifth reflectors can be a reflector known in the environment. A known reflector is understood to have information such as its reflection coefficient, position, distance, and relative angle that is known or obtainable. For example, a known reflector in the environment can be a static reflector whose location coordinates are known in the environment, or it can be a RIS, backscatter device, RFID tag, etc., whose location coordinates are known in the environment.

[0158] It should be noted that the classification of multipath between the terminal and network-side equipment can be done in various ways. For example, the multipath between the terminal and network-side equipment can be divided into two categories: the first category is the multipath that passes through the sensing target, i.e., the multipath associated with the sensing target; the second category is the multipath that does not pass through the sensing target, i.e., the multipath that passes through the first reflector and the direct path between the terminal and network-side equipment. Alternatively, the multipath between the terminal and network-side equipment can be divided into three categories: the first category is the multipath that passes through the sensing target; the second category is the multipath that passes through the first reflector; and the third category is the direct path between the terminal and network-side equipment. Alternatively, the multipath between the terminal and network-side equipment can be divided into five categories, i.e., the first target path to the fifth target path, where the fifth target path includes at least one of the multipath that passes through the first reflector and the direct path between the terminal and network-side equipment. For ease of description, the following explanation uses the classification of the multipath between the terminal and network-side equipment into five categories (i.e., the first target path to the fifth target path) as an example. It is understood that each category of target path can include at least one target path.

[0159] It should also be noted that among the five types of multipath mentioned above, the multipath associated with the sensing target includes the first target path, the second target path, the third target path, and the fourth target path, which can provide the sensing receiver with sensing target information from different observation perspectives. When the sensing receiver has prior information about the environmental reflector (e.g., reflection coefficient, position, distance, relative angle, etc.), or can determine the aforementioned information about the environmental reflector (e.g., reflection coefficient, position, distance, relative angle, etc.) during measurement, it can utilize at least one of the second to fourth target paths in addition to the first target path. This can achieve better sensing performance than using only the first target path, including improving the signal-to-noise ratio (SNR) or the signal-to-interference-plus-noise ratio (SINR), improving detection performance, increasing sensing accuracy, and obtaining more comprehensive sensing information.

[0160] Multipaths not directly associated with the sensing target, i.e., the fifth target path, are generally considered as self-interference and background clutter. However, if some prior sensing information is known, such as the position coordinates and state (including whether it is stationary or in motion, i.e., speed and direction) of at least one of the terminal, network-side equipment, and environmental reflectors, the fifth target path can be used to eliminate non-ideal factors between the terminal and network-side equipment, such as carrier frequency offset, timing offset, sampling frequency offset, and random phase. Furthermore, through sensing measurements, the terminal can determine the state of the environmental reflectors based on such multipaths. This measurement information can be further used to subsequently determine the sensing target information or the information of the second to fourth target paths. The environmental reflectors can be a whole composed of one or more physical objects in the environment.

[0161] The aforementioned target path-related configuration information may include, but is not limited to, at least one of the following: target path measurement configuration information, target path associated precoding configuration information, target path associated reporting configuration information, target path associated resource or resource set configuration information, and target path associated first signal configuration information.

[0162] Step 702: The terminal measures the first signal sent by the network-side device according to the target path-related configuration information to obtain first information, the first information including at least one of the following: the precoding information associated with the target path, and the measurement result associated with the target path.

[0163] The aforementioned precoding information may include precoding vectors or precoding vector indices used for sensing services. The aforementioned target path association measurement results may include at least one of the following: the measured value of the target path measurement quantity, or the value obtained by calculating the measured value of the target path measurement quantity, for example, the value obtained by calculating the measured values ​​of at least two measurement quantities using at least one of the following methods: addition, subtraction, multiplication, division, or a preset function.

[0164] For example, a target path or a class of target paths may be associated with at least one first signal, or the network-side device may group at least two first signals, each first signal group being associated with at least one or at least one class of target paths. The sequences of at least two first signals may be quasi-orthogonal or orthogonal, or at least two first signals may be orthogonal in at least one domain, such as the time domain, frequency domain, beam domain, etc.

[0165] It is understandable that network-side devices instruct terminals on target path information through target path-related configuration information. However, after sensing and measurement, the target path information obtained by the terminal may not be entirely consistent with the information instructed by the network-side devices. For example, the target path-related configuration information includes target path measurement instructions, which instruct the terminal to detect and measure the first, second, third, and fifth target paths, and report measurement information or pre-coded information associated with at least one of them, while not detecting or measuring the fourth target path and not reporting related information. After sensing and measurement, if the terminal only identifies the first, second, and fifth target paths, it will feed back the pre-coded information and / or measurement results associated with the first, second, and fifth target paths.

[0166] In some optional embodiments, the terminal may also obtain prior perception information from network-side devices. It is understood that the network-side devices instructing the terminal on target path-related configuration information and / or prior perception information helps the terminal reduce the computational complexity of detecting, identifying, and measuring the target path.

[0167] Step 703: The terminal reports the first information to the network-side device.

[0168] For example, the aforementioned precoding information associated with the target path and / or the reporting of measurement results associated with the target path can be achieved based on the NR CSI measurement and Precoding Matrix Indicator (PMI) feedback architecture. For instance, the terminal can report the PMI associated with the target path based on Type I Single Panel Codebook, Type II Single Panel Codebook, Type II Port Selection Codebook, or Enhanced Type II Codebook. Optionally, each PMI can also be associated with the measurement results of the target path. The terminal can report the target path-associated measurement results simultaneously with the PMI, for network-side devices to reference in determining the final perceptual beamforming precoding.

[0169] For example, upon receiving the first information, the network-side device can determine the precoding for sensing services based on the first information to improve sensing performance.

[0170] In this embodiment, the terminal receives target path-related configuration information from the network-side device. The target path includes at least one of the following: a multipath passing through a sensing target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device. The first reflector is a static reflector in the environment. The terminal measures a first signal sent by the network-side device according to the target path-related configuration information to obtain first information. The first information includes at least one of the following: precoding information associated with the target path and measurement results associated with the target path. The terminal reports the first information to the network-side device. That is, this embodiment provides a way to measure and report target path information between sensing nodes (i.e., the terminal and the network-side device), enabling the network-side device to obtain target path information and thereby improve sensing performance based on the target path information.

[0171] Optionally, the precoding information associated with the target path includes at least one of the following:

[0172] X1 spatial vectors or port selection vectors associated with at least one target path, or X1 indices used to determine the spatial vectors or port selection vectors associated with at least one target path, where X1 is a positive integer;

[0173] X2 is a vector consisting of a linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, where X2 is a positive integer.

[0174] In this embodiment, the values ​​of X1 and X2 can be predefined by the protocol, configured by the network-side device, or determined by the terminal.

[0175] Optionally, the target path-related configuration information includes at least one of the following:

[0176] The measurement configuration information of the target diameter;

[0177] The precoding configuration information associated with the target path;

[0178] The target path is associated with the reported configuration information;

[0179] Configuration information of the resources or resource sets associated with the target path;

[0180] Configuration information of the first signal associated with the target path.

[0181] Optionally, the target diameter measurement configuration information includes at least one of the following:

[0182] The measurement indication of the target diameter;

[0183] The measurement of the target diameter;

[0184] The first parameter of the target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to obtain perception results;

[0185] The second parameter of the target path is used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between the channels formed by the two target paths.

[0186] Decision conditions used to detect or identify target paths.

[0187] The above measurement indication can be used to indicate the type of target path that the terminal detects, measures and reports. For example, the type of target path can be indicated in the form of a bitmap. For instance, if the target path is divided into 5 types (i.e., the first target path to the fifth target path), a 5-bit binary sequence can be used to indicate the type of target path that the terminal needs to detect, measure and report.

[0188] For example, "10000" indicates that the terminal is instructed to detect and measure the first target path and report the measurement information or pre-coded information associated with the first target path, and does not need to detect and measure the second to fifth target paths and report the relevant information.

[0189] For example, "01101" indicates that the terminal needs to detect, measure the second target path, the third target path, and the fifth target path, and report the measurement information or pre-coded information associated with at least one of them, but does not need to detect, measure the first target path and the fourth target path and report the relevant information.

[0190] The aforementioned target path measurement may include, but is not limited to, at least one of the target path's amplitude, phase, power, time delay, departure azimuth, departure pitch, arrival azimuth, and arrival pitch.

[0191] The first parameter of the aforementioned target path is used to indicate the tendency or priority of using the target path to obtain sensing results, so as to provide a reference for the terminal's precoded information feedback. Specifically, considering that there may be differences between the multipaths of sensing and communication (the path associated with the sensing target generally has a small energy proportion in the communication channel), on the one hand, the terminal is instructed to make targeted measurements based on the prior sensing information, and on the other hand, it is convenient for the terminal to refer to when feeding back the sensing and communication PMI, and to determine the final reported PMI.

[0192] The second parameter of the aforementioned target path is used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between the channels formed by the two target paths. For example, the second parameter can be measured by correlation or diversity. The correlation can include the correlation between a target path and at least one other target path in at least one domain (time, frequency, or spatial domain), or the correlation between the channel formed by a target path and the channel formed by at least one other target path. This correlation can be calculated based on a channel correlation evaluation index, which can be found in the relevant descriptions of the foregoing embodiments and will not be repeated here. The correlation can indicate the degree of similarity between two target paths; for example, it can be used to indicate the degree of similarity between at least one of the second to fifth target paths and the first target path. The diversity can be determined based on the correlation; for example, diversity = 1 - correlation.

[0193] For example, a second parameter can be configured for each target path to be measured. In this case, the second parameter for each target path includes the degree of similarity or difference between the target path and other target paths to be measured, or the degree of similarity or difference between the channel formed by the target path and the channel formed by other target paths to be measured. Alternatively, a second parameter can be configured for all target paths to be measured. In this case, the second parameter includes the degree of similarity or difference between any two target paths to be measured, or the degree of similarity or difference between the channel formed by any two target paths to be measured.

[0194] It should be noted that if the similarity between two different target paths is greater or the difference is smaller, then using both target paths simultaneously for perception will result in less increase in the amount of perception information obtained compared to using only one of the two target paths for perception, and a smaller gain in perception performance. Conversely, if the similarity between two different target paths is smaller or the difference is greater, then using both target paths simultaneously for perception will result in a larger increase in the amount of perception information obtained compared to using only one of the two target paths for perception, and a larger gain in perception performance.

[0195] It should also be noted that the second parameter mentioned above has the same effect on sensing and communication; generally, the lower the multipath correlation, the better the performance of both sensing and communication under spatial multiplexing. This second parameter can also provide a reference for the terminal to report the sensing PMI and communication PMI, thus determining the final reported PMI.

[0196] The decision conditions for detecting or identifying target paths described above may, for example, include at least one of the following:

[0197] The amplitude / power / intensity / energy of the path exceeds the corresponding preset threshold or is within the corresponding preset range; for example, the preset threshold is exceeding the noise threshold by 6dB.

[0198] The Doppler amplitude of the path exceeds the first preset threshold or is within the first preset range;

[0199] The path delay exceeds the second preset threshold or falls within the second preset range;

[0200] The angle of the radius exceeds the third preset threshold or is within the third preset range;

[0201] The difference in amplitude / power / intensity / energy between the path and the first path (e.g., line-of-sight (LOS) path, also known as the direct path) or the reference path (e.g., the path of a signal reflected by a known target (e.g., RIS / Backscatter device / other known passive targets, etc.)) exceeds the corresponding preset threshold or is within the corresponding preset range.

[0202] The Doppler difference between the path and the first 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, etc.)) exceeds the fourth preset threshold or is within the fourth preset range.

[0203] The time delay difference between the path and the first path (e.g., the LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., RIS / Backscatter device / other known passive targets, etc.)) exceeds the fifth preset threshold or is within the fifth preset range.

[0204] The angle difference between the path and the first path (e.g., the LOS path) or the reference path (e.g., the signal path reflected by a known target (e.g., RIS / Backscatter device / other known passive targets, etc.)) exceeds the sixth preset threshold or is within the sixth preset range;

[0205] The amplitude / power / intensity / energy or phase of the path satisfies a specific modulation rule, which is the modulation rule of the Tag / Backscatter device / RIS, that is, the target path can be a path that has been modulated and reflected by the Tag / Backscatter device / RIS.

[0206] It should be noted that the above judgment conditions can also be set based on the results of statistics over a period of time. For example, the proportion of the above indicators (such as Doppler of the path, delay of the path, etc.) exceeding the corresponding preset threshold or falling within the corresponding preset range within a preset time window reaches the corresponding preset proportion, or the number of times the above indicators (such as Doppler of the path, delay of the path, etc.) exceed the corresponding preset threshold or fall within the corresponding preset range within a preset time window reaches the corresponding preset number.

[0207] The aforementioned preset threshold or preset range may be sent to the terminal by other devices, which determine the preset threshold or preset range based on prior target information or perception requirements; or, the aforementioned preset threshold or preset range may be determined by the terminal based on prior target information or perception requirements.

[0208] The aforementioned prior information or perception requirements may include at least one of the following: perception business or perception business type, perception target area, perception object type, and number of perception targets.

[0209] The aforementioned sensing services include, for example, detecting the presence of a target, localization, velocity detection, distance detection, angle detection, acceleration detection, material analysis, composition analysis, shape detection, category classification, and radar cross section (RCS) measurement. The sensing services include: Section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading, gait recognition, facial expression recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, terrain and landform, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc. The sensing service types can be classified according to certain characteristics, such as by function (detection-type sensing services, including intrusion detection and fall detection), parameter estimation-type sensing services (distance, angle, and speed calculation), and recognition-type sensing services (action recognition, identity recognition), etc. They can also be classified by sensing range (near-range sensing, medium-range sensing, and long-range sensing), by sensing fineness (coarse-grained sensing, fine-grained sensing, etc.), by power consumption / energy consumption, and by resource usage, etc. If the sensing service is respiratory monitoring, the corresponding normal respiratory rate can be determined based on the person's gender and age (e.g., 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 prior information for the target.

[0210] The aforementioned target area can refer to the location area of ​​the perceived object, or the location area that needs to be imaged or reconstructed; for example, a preset range of time delay for determining the target path based on the approximate location / distance of the perceived object.

[0211] The above-mentioned object types are classifications of objects based on their possible motion characteristics. Each object type includes information such as the typical motion velocity range, motion acceleration range, and typical RCS range of the object.

[0212] The number of the aforementioned perceived targets can be obtained, for example, from the camera's perception results as prior information about the targets.

[0213] For example, determining the target path in the channel response obtained from the first signal measurement may include the following steps:

[0214] Step a1: Determine the first path set, where the paths in the first path set include those whose amplitude / power / intensity / energy exceeds a certain threshold after the channel response is transformed to the first dimension. For example, see [link to relevant documentation]. Figure 9 The diagram illustrates multipath propagation in the first dimension of the channel response (e.g., delay dimension, Doppler dimension, azimuth dimension, or elevation dimension), where the horizontal axis represents the first dimension and the vertical axis represents the normalized amplitude / power / intensity / energy. Figure 9 In this context, Path 0, Path 1, Path 2, and Path 3 are the paths of the first path set; a certain threshold can be set to be higher than the noise threshold or higher than the noise interference threshold. It should be noted that the step of determining the first path set is optional, that is, the target path can be determined only based on the next step (i.e., step a2).

[0215] Step a2: Select a path that satisfies the above decision conditions from the first path set or from all paths, and use it as the target path.

[0216] For example, in Figure 9 In the first set of paths, paths 0, 1, 2, and 3 are paths that satisfy the decision conditions (e.g., their time delays satisfy a preset threshold), while paths 0 and 1 are paths associated with other scatterers.

[0217] In some optional embodiments, the above decision conditions may further include conditions for identifying the type of target path. The identification of each type of target path is illustrated by dividing target paths into five categories: first target path, to fifth target path.

[0218] The second target path has the following characteristics: its departure angle differs from that of the sensing target, but the signal still reaches the receiver through the sensing target (a necessary condition); its arrival angle is the same as that of the sensing target; and its time delay and Doppler effect differ from those of the sensing target. Furthermore, the probability of encountering other sensing targets that meet the above conditions during the entire measurement period is relatively low. Therefore, the second target path can be identified based on its different departure angles (one of which is the direction of the environmental reflector), the same arrival angle (remaining the same throughout the entire measurement period), different time delays (the second target path's time delay is greater than that of the first target path throughout the entire measurement period), and different Doppler effects (but with correlation).

[0219] The third target path has the following characteristics: its departure angle is different from that of the sensing target, but the signal still reaches the receiver through the sensing target (a necessary condition); its arrival angle is the same as that of the sensing target; and its time delay and Doppler effect are different from those of the sensing target. Furthermore, the probability of encountering other sensing targets that meet the above conditions during the entire measurement period is relatively low. Therefore, the third target path can be identified based on the following characteristics: the departure angle is the same (remaining the same throughout the measurement period); the arrival angle is different (one of which is the direction of the environmental reflector); the time delay is different (the time delay of the third target path is greater than that of the first target path throughout the measurement period); and the Doppler effect is different (but correlated).

[0220] The fourth target path has the following characteristics: its departure angle differs from that of the sensing target, but its signal still reaches the receiver through the sensing target (a necessary condition); its arrival angle differs from that of the sensing target; and its time delay and Doppler effect differ from those of the sensing target. Furthermore, the probability of encountering other sensing targets that satisfy the above conditions is relatively high throughout the measurement period. Therefore, the fourth target path can be identified based on its different departure angles (one of which is the direction of an environmental reflector), different arrival angles (one of which is the direction of an environmental reflector), different time delays (the fourth target path's time delay is greater than that of the first target path throughout the measurement period), and different Doppler effects (but with correlation).

[0221] The first target path has the following characteristics: it has the shortest latency and the strongest power among the paths associated with the perceived target. Therefore, the first target path can be identified by combining its characteristics with prior perception information.

[0222] The fifth target path has the following characteristics: it is a static path, has high power, and has fixed parameters. Therefore, the fifth target path can be identified by combining its characteristics with prior perception information.

[0223] Optionally, the precoding configuration information associated with the target path includes at least one of the following:

[0224] Precoding type;

[0225] The number of orthogonal Discrete Fourier Transform (DFT) beams of the network-side device in the horizontal direction, the number of orthogonal beams of the network-side device in the vertical direction, the oversampling parameters of the network-side device in the horizontal direction, and the oversampling parameters of the network-side device in the vertical direction.

[0226] Number of beams in a broadband beam group;

[0227] Pre-coded polarization phase difference quantization parameters;

[0228] Wideband amplitude quantization parameters;

[0229] Narrowband amplitude quantization parameters and phase quantization parameters;

[0230] Number of frequency domain orthogonal DFT basis vectors and frequency domain oversampling parameters.

[0231] For example, the above precoding types may include, but are not limited to, Type I SinglePanel Codebook, Type II Single Panel Codebook, Type II Port Selection Codebook, Enhanced Type II Codebook, etc.

[0232] The number of orthogonal DFT beams of the aforementioned network-side equipment in the horizontal direction is also the number of antenna ports of the network-side equipment in the horizontal direction. The number of orthogonal beams of the aforementioned network-side equipment in the vertical direction is also the number of antenna ports of the network-side equipment in the vertical direction.

[0233] The aforementioned precoded bipolar phase difference quantization parameters can be used for terminal reporting, that is, the terminal reports the first information based on the aforementioned precoded bipolar phase difference quantization parameters.

[0234] The aforementioned broadband amplitude quantization parameters may include the quantization method and the quantization granularity (i.e., the minimum amplitude step size for quantization).

[0235] The aforementioned narrowband amplitude quantization parameters may include the quantization method and quantization granularity (i.e., the minimum amplitude step size for quantization). Similarly, the aforementioned narrowband phase quantization parameters may include the quantization method and quantization granularity (i.e., the minimum phase step size for quantization).

[0236] It should be noted that network-side devices can configure different precoding configuration information for multiple target paths of the same type or multiple target paths of different types. In other words, a precoding configuration information can be associated with at least one target path.

[0237] Optionally, the configuration information of the resources or resource set associated with the target path includes at least one of the following:

[0238] Frequency domain configuration information of the resources or resource sets associated with the target path;

[0239] The temporal configuration information of the resources or resource sets associated with the target path;

[0240] The spatial configuration information of the resources or resource sets associated with the target path.

[0241] In this embodiment, the sensing resources or resource set associated with the target path are used to carry the first signal, and the first signal is used to measure the target path.

[0242] For example, the frequency domain configuration information of the above-mentioned resources or resource sets may include the frequency domain spacing density, occupied bandwidth, number of frequency domain resources or resource sets, frequency domain starting position of the resources or resource sets, etc.

[0243] The time-domain configuration information of the aforementioned resources or resource sets may include the time-domain interval / period, duration, number of time-domain resources or resource sets, and time-domain start position of the resources or resource sets.

[0244] The spatial configuration information of the aforementioned resources or resource sets may include the antenna port configuration of the resources or resource sets, the association between the resources or resource sets and the antenna ports, etc.

[0245] Optionally, a resource or set of resources may be associated with at least one target path;

[0246] or,

[0247] A target path is associated with at least one resource or set of resources.

[0248] In one implementation, a resource or resource set may be associated with at least one target path. For example, a network-side device may configure multiple different sensing resources or resource sets, each resource or resource set corresponding to a set of time-frequency resources, and each resource or resource set associated with at least one target path.

[0249] Optionally, each resource or resource set may correspond to at least one beam, and the at least one beam associated with each resource or resource set corresponds to at least one target path. For example, the at least one beam associated with the first resource or resource set points in the general direction of the sensing target (i.e., the direction of the first target path); the at least one beam associated with the second resource or resource set points in the direction of the second target path. Optionally, the network-side device may also configure a third resource or resource set, the at least one beam of which points in the direction of the terminal (i.e., the direction of the fifth target path).

[0250] Optionally, the aforementioned multiple different resources or resource sets can be used through Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM), or Code Division Multiplexing (CDM) to avoid mutual interference between signals of the target paths, facilitating target path detection and identification by the terminal. For example, Figure 10a and Figure 10b As shown.

[0251] For example, a resource or resource set may span multiple Orthogonal Frequency Division Multiplexing (OFDM) symbols or time slots, and the start position and duration of different resources or resource sets in the time domain may differ. The number of time-frequency resources (e.g., resource elements (REs)) of the different configured resources or resource sets may differ, as may the transmit antenna ports associated with different resources or resource sets and the number of transmit antenna ports, and the configuration information of the first signal associated with different resources or resource sets (e.g., the sequence type used, sequence configuration parameters, etc.) may differ.

[0252] For example, based on the NR CSI framework, the aforementioned resources or resource sets can be associated with one or more sensing beams and at least one target path-related first configuration information. The base station can configure at least one CSI-RS resource or CSI-RS-ResourceSet for at least one target path measurement. Each CSI-RS resource or CSI-RS-ResourceSet is associated with one target path-related first configuration information and corresponds to a set of transmit antenna ports. Different CSI-RS resources or CSI-RS-ResourceSets achieve orthogonality through TDM / FDM / CDM or a combination thereof.

[0253] The first configuration information related to the target path may include at least one of the following: the measurement configuration information of the target path, the precoding configuration information associated with the target path, the reporting configuration information associated with the target path, and the configuration information of the first signal associated with the target path.

[0254] In another implementation, a target path can be associated with at least one resource or resource set. For example, a network-side device can instruct the measurement of at least one target path and configure at least one resource or resource set associated with each target path. Different target paths can be associated with different resources or resource sets.

[0255] Optionally, different target paths may be associated with different resources or resource sets, or different types of target paths may be associated with different resources or resource sets.

[0256] The aforementioned different target paths may include different target paths of the same type, or they may include different target paths of different types.

[0257] Optionally, a resource or resource set may be associated with the reporting configuration information of at least one target path.

[0258] Optionally, the reporting configuration information of the target path includes at least one of the following:

[0259] An index of the report configuration associated with at least one target path;

[0260] The type of report configuration associated with at least one target path;

[0261] The number of report configurations associated with at least one target path;

[0262] Information associated with at least one target path is configured in the frequency domain;

[0263] Limitations in the time domain for reporting measurements associated with at least one target path.

[0264] The above report configuration types indicate the time-domain behavior of the report configuration, including periodic, aperiodic, and semipersistent.

[0265] The number of reports configured above can be used to control at least one of the following: the number of precoded information associated with the target path reported by the terminal, the number of target path measurements, the number of first parameters, and the number of second parameters. By presetting different values, flexible control can be achieved over the first information content reported for different target paths. For example, for target path 1, the terminal only reports the spatial vector index associated with it, and does not report or only reports some of the measurement results associated with the target path; for target path 2, the terminal reports the index used to determine at least two spatial basis vectors, and the merging coefficient of the linear combination of at least two spatial basis vectors, and does not report the measurement results associated with the target path.

[0266] The information configured in the frequency domain of the above report is used to indicate the frequency domain behavior of the report configuration. For example, it specifies the reporting band and whether the perceived PMI report is wideband or subband, and on which specific subbands the target path is measured and reported.

[0267] The aforementioned time-domain limitation on measurement reporting can be used to limit the terminal's measurement and reporting behavior of target paths in the time domain. For example, by limiting the time-domain limitation on measurement reporting, the reporting time for different target paths can be limited. For example, the reporting time can be limited to meet certain conditions, such as no later than n symbols or time slots of the first signal time domain resources, where n is a positive integer.

[0268] Optionally, the configuration information of the first signal associated with the target path includes at least one of the following: sequence type, sequence length, initial value of the sequence shift register, sequence primitive polynomial, sequence truncation position, sequence root number, and sequence cyclic shift value.

[0269] The above sequence types include, for example, m-sequences, Gold sequences, ZC (Zadofff-Chu) sequences, etc.

[0270] Optionally, the measurement results associated with the target path include at least one of the following:

[0271] The type of target path detected or identified;

[0272] The number of at least one type of target path;

[0273] An index of at least one type of target path;

[0274] A first parameter for at least one type of target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to perform sensing services;

[0275] A second parameter for at least one type of target path, the second parameter being used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between channels formed by two target paths;

[0276] Complex amplitude of at least one type of target path;

[0277] Power of at least one type of target path;

[0278] The time delay of at least one type of target path;

[0279] At least one type of target's angle;

[0280] The measurement value of at least one of the target indicators of at least one type of target path, wherein the target indicator is a perception-related indicator.

[0281] For example, the type of the detected or identified target path can be indicated in the form of a bitmap. For instance, a 5-bit binary sequence can be used to indicate the type of the target path that the terminal successfully detected, identified, and measured.

[0282] Optionally, the target indicator includes at least one of the following:

[0283] Receive power related metrics;

[0284] Indicators related to interference and noise power;

[0285] The sensing channel quality-related metrics include at least one of the following: signal-to-interference-plus-noise ratio (SINR), signal-to-noise ratio (SNR), signal-to-interference ratio (SIR), and reference signal received quality (RSRQ).

[0286] The aforementioned received power-related metrics may include a first metric (i.e., the received power of the target path), which may be: the linear average (in W) of the received power of the target path in the resource unit carrying the first signal, as measured in the channel response to the first signal. The aforementioned resource unit may include time-domain resource units and / or frequency-domain resource units.

[0287] The aforementioned interference and noise power related indicators may include at least one of the following: a second indicator, a third indicator, and a fourth indicator.

[0288] The second indicator mentioned above can be: the sum of the linear average power of the other paths (excluding the target path) in the channel response of the first signal on the target resource and the linear average power of the interference and noise from other signals (excluding the first signal) on the target resource or other resources (e.g., resources configured for higher-layer signaling) (in W); wherein the target resource can be a time-frequency domain resource unit carrying the first signal.

[0289] The second metric = total received power - the first metric; where total received power can be expressed as: the linear average of the total received power on the target resource (including the received power of signals from the serving cell and non-serving cells, adjacent channel interference, and thermal noise, etc.) (in W); or, total received power = RSSI * K1, where K1 is a coefficient, and the resource for measuring RSSI is the target resource or other resources (e.g., resources configured by higher-layer signaling). The definition of RSSI can be found in 3GPP TS38.215.

[0290] The third indicator mentioned above can be: the linear average value (in W) of the interference and noise power from signals other than the first signal on the target resource or other resources (such as resources configured by higher-level signaling); wherein, the target resource can be a time-frequency domain resource unit carrying the first signal.

[0291] The third indicator = total received power - first signal received power; where the first signal received power is the RSRP of the first signal, and the definition of RSRP can be found in relevant protocols or standards.

[0292] The fourth indicator mentioned above can be the linear average power of the other paths (in W) in the channel response of the first signal on the target resource, excluding the target path.

[0293] Fourth indicator = RSRP of the first signal - First indicator.

[0294] The aforementioned indicators related to the quality of the sensing channel may include at least one of the following: the fifth indicator, the sixth indicator, and the eighth indicator.

[0295] Among them, the fifth indicator (i.e., the first type of perception SINR / SNR / SIR) = the first indicator / the second indicator;

[0296] The sixth indicator (i.e., the second type of perception SINR / SNR / SIR) = the first indicator / the third indicator;

[0297] The seventh indicator (i.e., the third type of perception SINR / SNR / SIR) = the first indicator / the fourth indicator;

[0298] The eighth indicator (i.e., perceived RSRQ) = K2 * the first indicator / total received power, where K2 is a coefficient.

[0299] In some optional embodiments, the first indicator described above can be calculated as follows:

[0300] The terminal performs channel estimation based on the transmitted first signal X(k) and the corresponding received signal Y(k) to obtain the channel response H(k) = Y(k) / X(k), where k = 0, 1, 2, ..., K-1 represents the resource unit index. After obtaining the channel response H(k), the terminal transforms it to a first dimension and determines the target path in the first dimension. Then, the power of the target path is calculated as a first indicator. If the target path includes multiple paths, the sum of the power of the multiple paths is calculated as the first indicator.

[0301] The first dimension includes one of the following:

[0302] Time delay dimension;

[0303] Dopplerweis;

[0304] Azimuth dimension;

[0305] Pitch angle;

[0306] Among the time delay dimension, Doppler dimension, azimuth dimension, and pitch dimension, at least two are combined, such as time delay-Doppler dimension, time delay-Doppler-angle dimension, etc.

[0307] For example, H(f) is the channel response, where f = 0, 1, 2, ..., N-1 represents the frequency domain sampling points (e.g., subcarrier indices). Then, by performing an inverse Fourier transform on H(f), it can be transformed to the time delay dimension (the first dimension). Similarly, for another example, H(f, t) is the channel response, where f = 0, 1, 2, ..., N-1 represents the frequency domain sampling points (e.g., subcarrier indices), and t = 0, 1, 2, ..., M-1 represents the time domain sampling points (e.g., OFDM symbol indices). Then, by performing an inverse Fourier transform along the frequency domain and a Fourier transform along the time domain, it can be transformed to the time delay dimension. The first dimension is the delay-Doppler dimension. For example, H(f, t, s) is the channel response, where f = 0, 1, 2, ..., N-1 represents frequency domain sampling points (e.g., subcarrier index), t = 0, 1, 2, ..., M-1 represents time domain sampling points (e.g., OFDM symbol index), and s = 0, 1, 2, ..., P-1 represents spatial domain sampling points (antenna index or port index). Then, by performing an inverse Fourier transform along the frequency domain dimension, a Fourier transform along the time domain dimension, and a Fourier transform along the antenna domain dimension on H(f, t, s), it can be transformed to the delay-Doppler-angle dimension (the first dimension).

[0308] For frequency range 1, the reference point for the first indicator can be the antenna connector of the receiving node (such as a terminal). For frequency range 1, if the receiving node has multiple receiving channels, the first indicator measured and reported by the receiving node cannot be lower than the indicator of any single receiving channel. For frequency range 2, the first indicator measured for a certain receiving channel needs to be obtained by measuring the combined signal on multiple antenna elements corresponding to that receiving channel.

[0309] In some alternative embodiments, the first indicator described above can be calculated as follows:

[0310] Optionally, when calculating the received power of the target path, the power of the target path in the first dimension can be combined with... The difference is used as the primary indicator, where N1 represents the number of target paths. It represents the average power of multiple paths outside the first path set in the first dimension.

[0311] In some optional embodiments, the received power of the first signal can be calculated as follows:

[0312] The received power of the first signal can be obtained by the receiving node after obtaining the channel response H(k), transforming it to the first dimension, determining the first path set in the first dimension, and then calculating the sum of the power of all paths in the first path set.

[0313] In some alternative embodiments, the received power of the first signal can be calculated as follows:

[0314] The received power of the first signal can also be the sum of the powers of all paths in the first path set in the first dimension. The difference, where N2 represents the number of paths in the first path set.

[0315] In some optional embodiments, the total received power can be calculated as follows: Total Received Power

[0316] In some optional embodiments, the second indicator may be calculated as follows:

[0317] The channel response H(k) is processed by the first filter to obtain H. filter1 (k), then according to H filter1 The received signal Y after the first filtering process is calculated from (k) and the first signal X(k). filter1 (k), i.e., Y filter1 (k)=H filter1 (k)X(k). Then subtract the received signal Y(k) after the first filtering process from the received signal Y(k). filter1 (k) thus obtaining the interference and noise signal Y σ1 (k), i.e., Y σ1 (k)=Y(k)-Y filter1 (k), and then calculate the second index.

[0318] The first filtering process is used to eliminate noise and interference, as well as non-target paths, in the first dimension. For example, the first filtering process will... Figure 9 The amplitude, power, intensity, and energy of all paths except the target path are set to zero. The channel response H after the first filtering process... filter1 (k) does not include noise, interference, or non-target paths, but only target paths.

[0319] In some optional embodiments, the third indicator described above can be calculated as follows:

[0320] The channel response H(k) is processed by a second filter to obtain H. filter2 (k), then according to H filter2The received signal Y after the second filtering process is calculated from the first signal X(k) and the first signal X(k). filter2 (k), i.e., Y filter2 (k)=H filter2 (k)X(k). Then subtract the received signal Y(k) after the second filtering process from the received signal Y(k). filter2 (k) thus obtaining the interference and noise signal Y σ2 (k), i.e., Y σ2 (k)=Y(k)-Y filter2 (k), and then calculate the third index.

[0321] The second filtering process can be noise interference suppression processing in the first dimension (e.g.) Figure 9 The amplitude / power / intensity / energy of all paths except the first path set are set to zero, or minimum mean square error (MMSE) filtering is applied. The channel response H after the second filtering process is... filter2 (k) does not contain noise and interference, but only contains paths from the first path set.

[0322] In some alternative embodiments, the third indicator described above can be calculated as follows:

[0323] Based on the average power of multiple paths outside the first path set in the first dimension The third index P was calculated. σ2 ,Right now Where N represents the number of sampling points in the first dimension.

[0324] It should be noted that if the receiving node identifies multiple sensing targets, or if the receiving node obtains the number of sensing targets based on prior sensing information or sensing requirements, the following methods are available:

[0325] Method 1: Calculate the target index for each perceived target separately. For example, in Figure 9The path associated with each sensing target is determined separately, and then the target indicators corresponding to each sensing target are calculated separately. When calculating the second indicator corresponding to a certain sensing target (such as sensing target A), there are two methods: that is, the second indicator of sensing target A = total received power - the first indicator of sensing target A; or, if there are two sensing targets: A and B, then the second indicator of sensing target A = total received power - the first indicator of sensing target A - the first indicator of sensing target B. Similarly, there are also two ways to calculate the fourth indicator: the fourth indicator of sensing target A = the RSRP of the first signal - the first indicator of sensing target A; or, if there are two sensing targets: A and B, then the fourth indicator of sensing target A = the RSRP of the first signal - the first indicator of sensing target A - the first indicator of sensing target B.

[0326] Method 2: Calculate a target index for multiple sensing targets. For example, in Figure 8 The process involves identifying paths associated with any perceived target and then using these paths as target paths; this is equivalent to treating multiple perceived targets as a virtual perceived target and then calculating the target index corresponding to this virtual perceived target.

[0327] Optionally, the method further includes:

[0328] The terminal receives prior perception information from the network-side device or the first device;

[0329] or,

[0330] The terminal sends prior perception information to the network-side device or the first device.

[0331] In one embodiment, the terminal receives prior perception information from a network-side device or a first device, and then the terminal can perform target path detection, identification, measurement, and execution of perception services based on the prior perception information.

[0332] In another embodiment, the terminal can send prior perception information to the network-side device or the first device. For example, the terminal can obtain prior perception information through measurement and send it to the network-side device or the first device, and then the network-side device or the first device can determine the configuration information related to the target path based on the prior perception information.

[0333] Optionally, the prior information of perception includes at least one of the following:

[0334] The location information of the terminal;

[0335] The status information of the terminal;

[0336] Position information of the reflector;

[0337] The state information of the reflector;

[0338] The properties of the reflector.

[0339] For example, the state information of the terminal may include the terminal's motion state (e.g., moving or stationary), the magnitude of its movement speed, the direction of its movement speed, and the orientation of its antenna panel. The state information of the reflector may include the reflector's motion state (e.g., moving or stationary), the magnitude of its movement speed, and the direction of its movement speed. The attribute information of the reflector may include the reflection coefficient (including the amplitude and phase of the reflection coefficient), electromagnetic parameter information (e.g., dielectric constant, permeability, resistivity, refractive index, transmittance, etc.), material information, and dimensional information (e.g., height, width, thickness, etc.).

[0340] In some optional embodiments, the aforementioned prior information for perception may further include location information of the perceived target, such as the area where the perceived target is located.

[0341] Optionally, the first information further includes a precoding type indication, which indicates the type of reported precoding information, wherein the type of precoding information includes at least one of precoding information for sensing, precoding information for communication, and precoding information for both communication and sensing.

[0342] For example, a precoding type indicator can be set for each reported precoding information to indicate the type of the corresponding precoding information. For example, the precoding type indicator value can be "00" for precoding information used for sensing, "11" for precoding information used for communication, and "10" for precoding information used for both communication and sensing.

[0343] Optionally, the precoded information of the target path association is associated with the measurement results of the target path association;

[0344] or,

[0345] The precoding information for target path association is associated with the following two items: the measurement results of target path association and communication performance indicators.

[0346] The aforementioned communication performance indicators may include, but are not limited to, at least one of the following: received power of communication signal, received strength (amplitude or power), RSSI, communication signal-to-noise ratio, bit error rate (BER) / block error rate (BLER), CQI, RI, spectral efficiency, and transmission capacity.

[0347] For example, when the precoding information of the target path association is associated with the measurement result of the target path association, the precoding information of the target path association is indicated to be precoding information for sensing; when the precoding information of the target path association is associated with the measurement result of the target path association and the communication performance index, the precoding information of the target path association is indicated to be precoding information for communication and sensing.

[0348] It should be noted that in a sensing-communication integrated scenario, the terminal may simultaneously report both the sensing PMI and the communication PMI. The terminal determines the communication PMI and the sensing PMI based on at least one of the communication Quality of Service (QoS), sensing QoS, and sensing QoS, according to pre-defined criteria. The sensing PMI may be included within the communication PMI. In this case, the terminal needs to report a PMI type indication to indicate which PMIs are used for sensing, which are used for communication, and which are used for both. One implementation may be to explicitly indicate the type of each reported precoded information. Another implementation may be to implicitly indicate the type of each reported precoded information. For example, PMI information used for sensing may be associated with the target path measurement result, and / or PMI information used for communication may be associated with a communication performance indicator. For PMIs used for both communication and sensing, this portion of the PMI information is associated with at least one of the target path measurement result and at least one of the communication performance indicators.

[0349] Please see Figure 11 , Figure 11 This is a flowchart of a measurement reporting method provided in an embodiment of this application. This method can be executed by a network-side device, such as... Figure 11 As shown, it includes the following steps:

[0350] Step 1101: The network-side device sends configuration information related to the target path to the terminal. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through the first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0351] Step 1102: The network-side device receives first information from the terminal, the first information including at least one of the following: precoding information of the target path association, and measurement results of the target path association.

[0352] Optionally, the multipath passing through the perceived target includes at least one of the following:

[0353] The first target path is used to represent the multiple paths from the network-side device to the terminal via the sensing target;

[0354] The second target path is used to represent the multipath from the network-side device to the terminal via the second reflector and the sensing target in sequence;

[0355] The third target path is used to represent the multipath from the network-side device to the terminal via the sensing target and the third reflector in sequence;

[0356] The fourth target path is used to represent the multipath from the network-side device to the terminal via the fourth reflector, the sensing target, and the fifth reflector.

[0357] Optionally, the precoding information associated with the target path includes at least one of the following:

[0358] X1 spatial vectors or port selection vectors associated with at least one target path, or X1 indices used to determine the spatial vectors or port selection vectors associated with at least one target path, where X1 is a positive integer;

[0359] X2 is a vector consisting of a linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, where X2 is a positive integer.

[0360] Optionally, the target path-related configuration information includes at least one of the following:

[0361] The measurement configuration information of the target diameter;

[0362] The precoding configuration information associated with the target path;

[0363] The target path is associated with the reported configuration information;

[0364] Configuration information of the resources or resource sets associated with the target path;

[0365] Configuration information of the first signal associated with the target path.

[0366] Optionally, the target diameter measurement configuration information includes at least one of the following:

[0367] The measurement indication of the target diameter;

[0368] The measurement of the target diameter;

[0369] The first parameter of the target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to obtain perception results;

[0370] The second parameter of the target path is used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between the channels formed by the two target paths.

[0371] Decision conditions used to detect or identify target paths.

[0372] Optionally, the precoding configuration information associated with the target path includes at least one of the following:

[0373] Precoding type;

[0374] The number of orthogonal discrete Fourier transform (DFT) beams of the network-side device in the horizontal direction, the number of orthogonal beams of the network-side device in the vertical direction, the oversampling parameters of the network-side device in the horizontal direction, and the oversampling parameters of the network-side device in the vertical direction.

[0375] Number of beams in a broadband beamgroup;

[0376] Pre-coded polarization phase difference quantization parameters;

[0377] Wideband amplitude quantization parameters;

[0378] Narrowband amplitude quantization parameters and phase quantization parameters;

[0379] Number of frequency domain orthogonal DFT basis vectors and frequency domain oversampling parameters.

[0380] Optionally, the configuration information of the resources or resource set associated with the target path includes at least one of the following:

[0381] Frequency domain configuration information of the resources or resource sets associated with the target path;

[0382] The temporal configuration information of the resources or resource sets associated with the target path;

[0383] The spatial configuration information of the resources or resource sets associated with the target path.

[0384] Optionally, a resource or set of resources may be associated with at least one target path;

[0385] or,

[0386] A target path is associated with at least one resource or set of resources.

[0387] Optionally, different target paths may be associated with different resources or resource sets, or different types of target paths may be associated with different resources or resource sets.

[0388] Optionally, a resource or resource set may be associated with the reporting configuration information of at least one target path.

[0389] Optionally, the reporting configuration information of the target path includes at least one of the following:

[0390] An index of the report configuration associated with at least one target path;

[0391] The type of report configuration associated with at least one target path;

[0392] The number of report configurations associated with at least one target path;

[0393] Information associated with at least one target path is configured in the frequency domain;

[0394] Limitations in the time domain for reporting measurements associated with at least one target path.

[0395] Optionally, the configuration information of the first signal associated with the target path includes at least one of the following: sequence type, sequence length, initial value of the sequence shift register, sequence primitive polynomial, sequence truncation position, sequence root number, and sequence cyclic shift value.

[0396] Optionally, the measurement results associated with the target path include at least one of the following:

[0397] The type of target path detected or identified;

[0398] The number of at least one type of target path;

[0399] An index of at least one type of target path;

[0400] A first parameter for at least one type of target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to perform sensing services;

[0401] A second parameter for at least one type of target path, the second parameter being used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between channels formed by two target paths;

[0402] Complex amplitude of at least one type of target path;

[0403] Power of at least one type of target path;

[0404] The time delay of at least one type of target path;

[0405] At least one type of target's angle;

[0406] The measurement value of at least one of the target indicators of at least one type of target path, wherein the target indicator is a perception-related indicator.

[0407] Optionally, the target indicator includes at least one of the following:

[0408] Receive power related metrics;

[0409] Indicators related to interference and noise power;

[0410] The sensing channel quality-related metrics include at least one of the following: signal-to-interference-plus-noise ratio (SINR), signal-to-noise ratio (SNR), signal-to-interference ratio (SIR), and reference signal reception quality (RSRQ).

[0411] Optionally, the method further includes:

[0412] The network-side device sends prior perception information to the terminal;

[0413] or,

[0414] The network-side device receives prior perception information from the terminal.

[0415] Optionally, the prior information of perception includes at least one of the following:

[0416] The location information of the terminal;

[0417] The status information of the terminal;

[0418] Position information of the reflector;

[0419] The state information of the reflector;

[0420] The properties of the reflector.

[0421] Optionally, the method further includes:

[0422] The network-side device determines the target path-related configuration information based on the perceived prior information.

[0423] Optionally, the first information further includes a precoding type indication, which indicates the type of reported precoding information, wherein the type of precoding information includes at least one of precoding information for sensing, precoding information for communication, and precoding information for both communication and sensing.

[0424] Optionally, the precoded information of the target path association is associated with the measurement results of the target path association;

[0425] or,

[0426] The precoding information for target path association is associated with the following two items: the measurement results of target path association and communication performance indicators.

[0427] Optionally, the method further includes:

[0428] The network-side device determines the precoding for sensing services based on the first information.

[0429] It should be noted that the implementation method of this method can be found in [reference needed]. Figure 7 The relevant descriptions of the embodiments shown are not repeated here.

[0430] It should be noted that the measurement reporting method provided in this application embodiment can be executed by a measurement reporting device. This application embodiment uses a measurement reporting device executing the measurement reporting method as an example to illustrate the measurement reporting device provided in this application embodiment.

[0431] This application provides a measurement reporting device. As an example, the measurement reporting device can be a communication device or a component within a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0432] The measurement reporting device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0433] For details, see Figure 12 When the measurement reporting device is a terminal or a component in a terminal, the measurement reporting device 1200 includes a receiving module 1201, used to receive configuration information related to the target path from the network-side device. The target path includes at least one of the following: a multipath passing through the sensing target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0434] Processing module 1202 is used to measure the first signal sent by the network-side device according to the target path-related configuration information to obtain first information, wherein the first information includes at least one of the following: precoding information associated with the target path, and measurement results associated with the target path;

[0435] The sending module 1203 is used to report the first information to the network-side device.

[0436] Optionally, the multipath passing through the perceived target includes at least one of the following:

[0437] The first target path is used to represent the multiple paths from the network-side device to the terminal via the sensing target;

[0438] The second target path is used to represent the multipath from the network-side device to the terminal via the second reflector and the sensing target in sequence;

[0439] The third target path is used to represent the multipath from the network-side device to the terminal via the sensing target and the third reflector in sequence;

[0440] The fourth target path is used to represent the multipath from the network-side device to the terminal via the fourth reflector, the sensing target, and the fifth reflector.

[0441] Optionally, the precoding information associated with the target path includes at least one of the following:

[0442] X1 spatial vectors or port selection vectors associated with at least one target path, or X1 indices used to determine the spatial vectors or port selection vectors associated with at least one target path, where X1 is a positive integer;

[0443] X2 is a vector consisting of a linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, where X2 is a positive integer.

[0444] Optionally, the target path-related configuration information includes at least one of the following:

[0445] The measurement configuration information of the target diameter;

[0446] The precoding configuration information associated with the target path;

[0447] The target path is associated with the reported configuration information;

[0448] Configuration information of the resources or resource sets associated with the target path;

[0449] Configuration information of the first signal associated with the target path.

[0450] Optionally, the target diameter measurement configuration information includes at least one of the following:

[0451] The measurement indication of the target diameter;

[0452] The measurement of the target diameter;

[0453] The first parameter of the target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to obtain perception results;

[0454] The second parameter of the target path is used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between the channels formed by the two target paths.

[0455] Decision conditions used to detect or identify target paths.

[0456] Optionally, the precoding configuration information associated with the target path includes at least one of the following:

[0457] Precoding type;

[0458] The number of orthogonal discrete Fourier transform (DFT) beams of the network-side device in the horizontal direction, the number of orthogonal beams of the network-side device in the vertical direction, the oversampling parameters of the network-side device in the horizontal direction, and the oversampling parameters of the network-side device in the vertical direction.

[0459] Number of beams in a broadband beamgroup;

[0460] Pre-coded polarization phase difference quantization parameters;

[0461] Wideband amplitude quantization parameters;

[0462] Narrowband amplitude quantization parameters and phase quantization parameters;

[0463] Number of frequency domain orthogonal DFT basis vectors and frequency domain oversampling parameters.

[0464] Optionally, the configuration information of the resources or resource set associated with the target path includes at least one of the following:

[0465] Frequency domain configuration information of the resources or resource sets associated with the target path;

[0466] The temporal configuration information of the resources or resource sets associated with the target path;

[0467] The spatial configuration information of the resources or resource sets associated with the target path.

[0468] Optionally, a resource or set of resources may be associated with at least one target path;

[0469] or,

[0470] A target path is associated with at least one resource or set of resources.

[0471] Optionally, different target paths may be associated with different resources or resource sets, or different types of target paths may be associated with different resources or resource sets.

[0472] Optionally, a resource or resource set may be associated with the reporting configuration information of at least one target path.

[0473] Optionally, the reporting configuration information of the target path includes at least one of the following:

[0474] An index of the report configuration associated with at least one target path;

[0475] The type of report configuration associated with at least one target path;

[0476] The number of report configurations associated with at least one target path;

[0477] Information associated with at least one target path is configured in the frequency domain;

[0478] Limitations in the time domain for reporting measurements associated with at least one target path.

[0479] Optionally, the configuration information of the first signal associated with the target path includes at least one of the following: sequence type, sequence length, initial value of the sequence shift register, sequence primitive polynomial, sequence truncation position, sequence root number, and sequence cyclic shift value.

[0480] Optionally, the measurement results associated with the target path include at least one of the following:

[0481] The type of target path detected or identified;

[0482] The number of at least one type of target path;

[0483] An index of at least one type of target path;

[0484] A first parameter for at least one type of target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to perform sensing services;

[0485] A second parameter for at least one type of target path, the second parameter being used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between channels formed by two target paths;

[0486] Complex amplitude of at least one type of target path;

[0487] Power of at least one type of target path;

[0488] The time delay of at least one type of target path;

[0489] At least one type of target's angle;

[0490] The measurement value of at least one of the target indicators of at least one type of target path, wherein the target indicator is a perception-related indicator.

[0491] Optionally, the target indicator includes at least one of the following:

[0492] Receive power related metrics;

[0493] Indicators related to interference and noise power;

[0494] The sensing channel quality-related metrics include at least one of the following: signal-to-interference-plus-noise ratio (SINR), signal-to-noise ratio (SNR), signal-to-interference ratio (SIR), and reference signal reception quality (RSRQ).

[0495] Optionally, the receiving module is further configured to receive prior perception information from the network-side device or the first device;

[0496] or,

[0497] The sending module is also used to send prior perception information to the network-side device or the first device.

[0498] Optionally, the prior information of perception includes at least one of the following:

[0499] The location information of the terminal;

[0500] The status information of the terminal;

[0501] Position information of the reflector;

[0502] The state information of the reflector;

[0503] The properties of the reflector.

[0504] Optionally, the first information further includes a precoding type indication, which indicates the type of reported precoding information, wherein the type of precoding information includes at least one of precoding information for sensing, precoding information for communication, and precoding information for both communication and sensing.

[0505] Optionally, the precoded information of the target path association is associated with the measurement results of the target path association;

[0506] or,

[0507] The precoding information for target path association is associated with the following two items: the measurement results of target path association and communication performance indicators.

[0508] The measurement reporting device provided in this application embodiment can achieve... Figure 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0509] See Figure 13 When the measurement reporting device is a network-side device or a component of a network-side device, the measurement reporting device 1300 includes a sending module 1301, which is used to send configuration information related to the target path to the terminal. The target path includes at least one of the following: a multipath passing through the sensing target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0510] The receiving module 1302 is configured to receive first information from the terminal, the first information including at least one of the following: precoding information associated with the target path, and measurement results associated with the target path.

[0511] Optionally, the multipath passing through the perceived target includes at least one of the following:

[0512] The first target path is used to represent the multiple paths from the network-side device to the terminal via the sensing target;

[0513] The second target path is used to represent the multipath from the network-side device to the terminal via the second reflector and the sensing target in sequence;

[0514] The third target path is used to represent the multipath from the network-side device to the terminal via the sensing target and the third reflector in sequence;

[0515] The fourth target path is used to represent the multipath from the network-side device to the terminal via the fourth reflector, the sensing target, and the fifth reflector.

[0516] Optionally, the precoding information associated with the target path includes at least one of the following:

[0517] X1 spatial vectors or port selection vectors associated with at least one target path, or X1 indices used to determine the spatial vectors or port selection vectors associated with at least one target path, where X1 is a positive integer;

[0518] X2 is a vector consisting of a linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, or an index used to determine the indices of at least two spatial basis vectors and the merging coefficients of the linear combination of at least two spatial basis vectors, where X2 is a positive integer.

[0519] Optionally, the target path-related configuration information includes at least one of the following:

[0520] The measurement configuration information of the target diameter;

[0521] The precoding configuration information associated with the target path;

[0522] The target path is associated with the reported configuration information;

[0523] Configuration information of the resources or resource sets associated with the target path;

[0524] Configuration information of the first signal associated with the target path.

[0525] Optionally, the target diameter measurement configuration information includes at least one of the following:

[0526] The measurement indication of the target diameter;

[0527] The measurement of the target diameter;

[0528] The first parameter of the target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to obtain perception results;

[0529] The second parameter of the target path is used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between the channels formed by the two target paths.

[0530] Decision conditions used to detect or identify target paths.

[0531] Optionally, the precoding configuration information associated with the target path includes at least one of the following:

[0532] Precoding type;

[0533] The number of orthogonal discrete Fourier transform (DFT) beams of the network-side device in the horizontal direction, the number of orthogonal beams of the network-side device in the vertical direction, the oversampling parameters of the network-side device in the horizontal direction, and the oversampling parameters of the network-side device in the vertical direction.

[0534] Number of beams in a broadband beamgroup;

[0535] Pre-coded polarization phase difference quantization parameters;

[0536] Wideband amplitude quantization parameters;

[0537] Narrowband amplitude quantization parameters and phase quantization parameters;

[0538] Number of frequency domain orthogonal DFT basis vectors and frequency domain oversampling parameters.

[0539] Optionally, the configuration information of the resources or resource set associated with the target path includes at least one of the following:

[0540] Frequency domain configuration information of the resources or resource sets associated with the target path;

[0541] The temporal configuration information of the resources or resource sets associated with the target path;

[0542] The spatial configuration information of the resources or resource sets associated with the target path.

[0543] Optionally, a resource or set of resources may be associated with at least one target path;

[0544] or,

[0545] A target path is associated with at least one resource or set of resources.

[0546] Optionally, different target paths may be associated with different resources or resource sets, or different types of target paths may be associated with different resources or resource sets.

[0547] Optionally, a resource or resource set may be associated with the reporting configuration information of at least one target path.

[0548] Optionally, the reporting configuration information of the target path includes at least one of the following:

[0549] An index of the report configuration associated with at least one target path;

[0550] The type of report configuration associated with at least one target path;

[0551] The number of report configurations associated with at least one target path;

[0552] Information associated with at least one target path is configured in the frequency domain;

[0553] Limitations in the time domain for reporting measurements associated with at least one target path.

[0554] Optionally, the configuration information of the first signal associated with the target path includes at least one of the following: sequence type, sequence length, initial value of the sequence shift register, sequence primitive polynomial, sequence truncation position, sequence root number, and sequence cyclic shift value.

[0555] Optionally, the measurement results associated with the target path include at least one of the following:

[0556] The type of target path detected or identified;

[0557] The number of at least one type of target path;

[0558] An index of at least one type of target path;

[0559] A first parameter for at least one type of target path, wherein the first parameter is used to indicate the tendency or priority of using the target path to perform sensing services;

[0560] A second parameter for at least one type of target path, the second parameter being used to indicate the degree of similarity or difference between two target paths, or to indicate the degree of similarity or difference between channels formed by two target paths;

[0561] Complex amplitude of at least one type of target path;

[0562] Power of at least one type of target path;

[0563] The time delay of at least one type of target path;

[0564] At least one type of target's angle;

[0565] The measurement value of at least one of the target indicators of at least one type of target path, wherein the target indicator is a perception-related indicator.

[0566] Optionally, the target indicator includes at least one of the following:

[0567] Receive power related metrics;

[0568] Indicators related to interference and noise power;

[0569] The sensing channel quality-related metrics include at least one of the following: signal-to-interference-plus-noise ratio (SINR), signal-to-noise ratio (SNR), signal-to-interference ratio (SIR), and reference signal reception quality (RSRQ).

[0570] Optionally, the sending module is further configured to send prior perception information to the terminal;

[0571] or,

[0572] The receiving module is also used to receive prior perception information from the terminal.

[0573] Optionally, the prior information of perception includes at least one of the following:

[0574] The location information of the terminal;

[0575] The status information of the terminal;

[0576] Position information of the reflector;

[0577] The state information of the reflector;

[0578] The properties of the reflector.

[0579] Optionally, the device further includes:

[0580] The processing module is used to determine the configuration information related to the target path based on the perceived prior information.

[0581] Optionally, the first information further includes a precoding type indication, which indicates the type of reported precoding information, wherein the type of precoding information includes at least one of precoding information for sensing, precoding information for communication, and precoding information for both communication and sensing.

[0582] Optionally, the precoded information of the target path association is associated with the measurement results of the target path association;

[0583] or,

[0584] The precoding information for target path association is associated with the following two items: the measurement results of target path association and communication performance indicators.

[0585] Optionally, the device further includes:

[0586] The processing module is used to determine the precoding for sensing services based on the first information.

[0587] The measurement reporting device provided in this application embodiment can achieve... Figure 11 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0588] like Figure 14 As shown in the illustration, this application also provides a communication device 1400, including a processor 1401 and a memory 1402. The memory 1402 stores programs or instructions that can run on the processor 1401. For example, when the communication device 1400 is a terminal, the program or instructions executed by the processor 1401 implement the various steps of the above-described measurement reporting method embodiment and achieve the same technical effect. When the communication device 1400 is a network-side device, the program or instructions executed by the processor 1401 implement the various steps of the above-described measurement reporting method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0589] This application embodiment also provides a terminal, including 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, for example... Figure 7The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 12 The measurement reporting device shown. Specifically, Figure 15 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0590] The terminal 1500 includes, but is not limited to, at least some of the following components: radio frequency unit 1501, network module 1502, audio output unit 1503, input unit 1504, sensor 1505, display unit 1506, user input unit 1507, interface unit 1508, memory 1509, and processor 1510.

[0591] Those skilled in the art will understand that the terminal 1500 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1510 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 15 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0592] It should be understood that, in this embodiment, the input unit 1504 may include a graphics processor 15041 and a microphone 15042. The graphics processor 15041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1506 may include a display panel 15061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1507 includes a touch panel 15071 and at least one of other input devices 15072. The touch panel 15071 is also called a touch screen. The touch panel 15071 may include a touch detection device and a touch controller. Other input devices 15072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0593] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1501 can transmit it to the processor 1510 for processing; in addition, the radio frequency unit 1501 can send uplink data to the network-side device. Typically, the radio frequency unit 1501 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0594] The memory 1509 can be used to store software programs or instructions, as well as various data. The memory 1509 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1509 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can 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 memory bus RAM (DRRAM). The memory 1509 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0595] Processor 1510 may include one or more processing units; optionally, processor 1510 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1510.

[0596] The radio frequency unit 1501 is used to receive configuration information related to the target path from the network-side device. The target path includes at least one of the following: a multipath passing through the sensed target, a multipath passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment.

[0597] Processor 1510 is configured to measure a first signal sent by the network-side device according to the target path-related configuration information to obtain first information, the first information including at least one of the following: precoding information associated with the target path, and measurement results associated with the target path;

[0598] The radio frequency unit 1501 is also used to report the first information to the network-side device.

[0599] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the aforementioned measurement reporting method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0600] This application embodiment 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 used to run programs or instructions to implement, for example... Figure 11 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0601] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 13 The measurement and reporting device shown. Figure 16 As shown, the network-side device 1600 includes: an antenna 1601, a radio frequency (RF) device 1602, a baseband device 1603, a processor 1604, and a memory 1605. The antenna 1601 is connected to the RF device 1602. In the uplink direction, the RF device 1602 receives information through the antenna 1601 and sends the received information to the baseband device 1603 for processing. In the downlink direction, the baseband device 1603 processes the information to be transmitted and sends it to the RF device 1602. The RF device 1602 processes the received information and then transmits it through the antenna 1601.

[0602] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1603, which includes a baseband processor.

[0603] The baseband device 1603 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 16 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1605 via a bus interface to call the program in the memory 1605 and execute the network device operation shown in the above method embodiment.

[0604] The network-side device may also include a network interface 1606, such as a Common Public Radio Interface (CPRI).

[0605] Specifically, the network-side device 1600 in this application embodiment further includes: instructions or programs stored in memory 1605 and executable on processor 1604, wherein processor 1604 calls the instructions or programs in memory 1605 to execute. Figure 13 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0606] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described measurement reporting method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0607] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0608] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above measurement reporting method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0609] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0610] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described measurement reporting method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0611] This application also provides a wireless communication system, including a terminal and a network-side device. The terminal can be used to perform the steps of the measurement reporting method described above, and the network-side device can be used to perform the steps of the measurement reporting method described above.

[0612] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0613] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0614] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A measurement reporting method, characterized in that, The method comprises the following steps: A terminal receives target path related configuration information from a network side device, the target path comprising at least one of the following: a path passing through a sensing target, a path passing through a first reflector, and a direct path between the terminal and the network side device; the first reflector is a static reflector in an environment; The terminal measures a first signal transmitted by the network side device according to the target path related configuration information, and obtains first information, the first information comprising at least one of the following: target path related precoding information and target path related measurement results; The terminal reports the first information to the network side device.

2. The method of claim 1, wherein, The path passing through the sensing target comprises at least one of the following: A first target path, used to represent a path from the network side device to the terminal via the sensing target; A second target path, used to represent a path from the network side device to the terminal via the second reflector and the sensing target in sequence; A third target path, used to represent a path from the network side device to the terminal via the sensing target and the third reflector in sequence; A fourth target path, used to represent a path from the network side device to the terminal via the fourth reflector, the sensing target and the fifth reflector in sequence.

3. The method according to claim 1 or 2, characterized in that, The target path related precoding information comprises at least one of the following: X1 spatial domain vectors or port selection vectors associated with at least one target path, or X1 indexes used to determine the spatial domain vectors or port selection vectors associated with at least one target path, X1 being a positive integer; X2 vectors composed of linear combinations of at least two spatial domain basis vectors, or indexes used to determine the at least two spatial domain basis vectors and combination coefficients of the linear combinations of the at least two spatial domain basis vectors, or indexes used to determine the at least two spatial domain basis vectors and indexes used to determine the combination coefficients of the linear combinations of the at least two spatial domain basis vectors, X2 being a positive integer.

4. The method according to any one of claims 1 to 3, characterized in that, The target path related configuration information comprises at least one of the following: Measurement configuration information of the target path; Precoding configuration information associated with the target path; Reporting configuration information associated with the target path; Configuration information of a resource or a resource set associated with the target path; Configuration information of a first signal associated with the target path.

5. The method of claim 4, wherein, The measurement configuration information of the target path comprises at least one of the following: Measurement indication of the target path; Measurement quantity of the target path; A first parameter of the target path, used to indicate a tendency or priority of using the target path to obtain a sensing result; A second parameter of the target path, used to indicate a similarity or difference between two target paths, or a similarity or difference between channels formed by the two target paths; A decision condition used to detect or identify a target path.

6. The method according to claim 4 or 5, characterized in that, The precoding configuration information associated with the target path comprises at least one of the following: A precoding type; A number of horizontal DFT beams of the network side device, a number of vertical beams of the network side device, a horizontal oversampling parameter of the network side device and a vertical oversampling parameter of the network side device; A number of beams in a wideband beam group; Precoding two-polarization phase difference quantization parameter; Wideband amplitude quantization parameter; Narrowband amplitude quantization parameter and phase quantization parameter; The number of frequency domain orthogonal DFT basis vectors and frequency domain oversampling parameters.

7. The method according to any one of claims 4 to 6, characterized in that, The configuration information of the resource or resource set associated with the target path includes at least one of the following: The frequency domain configuration information of the resource or resource set associated with the target path; The time domain configuration information of the resource or resource set associated with the target path; The spatial domain configuration information of the resource or resource set associated with the target path.

8. The method of any one of claims 4 to 7, wherein, one resource or resource set is associated with at least one target path; or, one target path is associated with at least one resource or resource set.

9. The method according to any one of claims 4 to 8, characterized in that, Different target paths are associated with different resources or resource sets, or different types of target paths are associated with different resources or resource sets.

10. The method according to any one of claims 4 to 9, characterized in that, The reporting configuration information of one resource or resource set associated with at least one target path.

11. The method according to any one of claims 4 to 10, characterized in that, The reporting configuration information of the target path includes at least one of the following: The index of the reporting configuration associated with at least one target path; The type of the reporting configuration associated with at least one target path; The number of the reporting configuration associated with at least one target path; The information on the frequency domain of the reporting configuration associated with at least one target path; The time domain restriction of the measurement reporting associated with at least one target path.

12. The method according to any one of claims 4 to 11, characterized in that, The configuration information of the first signal associated with the target path includes at least one of the following: sequence type, sequence length, sequence shift register initial value, sequence primitive polynomial, sequence intercept position, sequence root sequence number, sequence cyclic shift value.

13. The method according to any one of claims 1 to 12, characterized in that, The measurement result associated with the target path includes at least one of the following: The type of the detected or identified target path; The number of at least one type of target path; The index of at least one type of target path; The first parameter of at least one type of target path, which is used to indicate the tendency or priority of using the target path to perform sensing service; The second parameter of at least one type of target path, which is used to indicate the similarity or difference between two target paths, or the similarity or difference between the channels formed by two target paths; The complex amplitude of at least one type of target path; The power of at least one type of target path; The time delay of at least one type of target path; The angle of at least one type of target path; The measurement value of at least one of the target indicators of at least one type of target path, the target indicator being a sensing-related indicator.

14. The method of claim 13, wherein, The target indicator includes at least one of the following: The received power-related indicator; The interference and noise power-related indicator; The sensing channel quality-related indicator, including at least one of the following: signal-to-interference-plus-noise ratio SINR, signal-to-noise ratio SNR, signal-to-interference ratio SIR, reference signal received quality RSRQ.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: The terminal receives sensing prior information from the network side device or the first device; or, The terminal sends sensing prior information to the network side device or the first device.

16. The method of claim 15, wherein, The sensing prior information includes at least one of the following: The position information of the terminal; The state information of the terminal; The position information of the reflector; The state information of the reflector; The attribute information of the reflector.

17. The method of any one of claims 1 to 16, wherein, The first information further comprises a precoding type indication, the precoding type indication is used to indicate a type of reported precoding information, and the type of precoding information comprises at least one of precoding information for sensing, precoding information for communication, and precoding information for sensing and communication.

18. The method of any one of claims 1 to 17, wherein, The target-path-related precoding information is associated with the target-path-related measurement result; Or, The target-path-related precoding information is associated with the target-path-related measurement result and a communication performance index.

19. A measurement reporting method, characterized by, Comprise: The network-side device sends target-path-related configuration information to the terminal, the target path comprising at least one of the following: a multi-path passing through a sensing target, a multi-path passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment; The network-side device receives first information from the terminal, the first information comprising at least one of the following: target-path-related precoding information and target-path-related measurement result.

20. The method of claim 19, wherein, The multi-path passing through the sensing target comprises at least one of the following: A first target path, used to represent a multi-path from the network-side device to the terminal via a sensing target; A second target path, used to represent a multi-path from the network-side device to the terminal via a second reflector and a sensing target in sequence; A third target path, used to represent a multi-path from the network-side device to the terminal via a sensing target and a third reflector in sequence; A fourth target path, used to represent a multi-path from the network-side device to the terminal via a fourth reflector, a sensing target, and a fifth reflector in sequence.

21. The method of claim 19 or 20, wherein, The target-path-related precoding information comprises at least one of the following: X1 spatial domain vectors or port selection vectors associated with at least one target path, or X1 indexes for determining spatial domain vectors or port selection vectors associated with at least one target path, X1 being a positive integer; X2 vectors composed of linear combinations of at least two spatial domain basis vectors, or indexes for determining at least two spatial domain basis vectors and combining coefficients of linear combinations of at least two spatial domain basis vectors, or indexes for determining at least two spatial domain basis vectors and indexes for determining combining coefficients of linear combinations of at least two spatial domain basis vectors, X2 being a positive integer.

22. The method of any one of claims 19-21, wherein, The target-path-related configuration information comprises at least one of the following: Measurement configuration information of the target path; Precoding configuration information associated with the target path; Reporting configuration information associated with the target path; Configuration information of a resource or a resource set associated with the target path; Configuration information of a first signal associated with the target path.

23. The method of claim 22, wherein, The measurement configuration information of the target path comprises at least one of the following: Measurement indication of the target path; Measurement quantity of the target path; A first parameter of the target path, used to indicate the tendency or priority of obtaining a sensing result using the target path; A second parameter of the target path, used to indicate the similarity or difference between two target paths, or the similarity or difference between channels formed by two target paths; A decision condition for detecting or identifying a target path.

24. The method of claim 22 or 23, wherein, The precoding configuration information associated with the target path includes at least one of the following: A precoding type; A number of DFT beams in a horizontal direction of the network side device, a number of orthogonal beams in a vertical direction of the network side device, an oversampling parameter in the horizontal direction of the network side device, and an oversampling parameter in the vertical direction of the network side device; A number of wideband beam group beams; A precoding two-polarization phase difference quantization parameter; A wideband amplitude quantization parameter; A narrowband amplitude quantization parameter and a phase quantization parameter; A number of frequency domain orthogonal DFT basis vectors and a frequency domain oversampling parameter.

25. The method of any one of claims 22-24, wherein, The resource or resource set configuration information associated with the target path includes at least one of the following: Frequency domain configuration information of the resource or resource set associated with the target path; Time domain configuration information of the resource or resource set associated with the target path; Space domain configuration information of the resource or resource set associated with the target path.

26. The method of any one of claims 22 to 25, wherein: One resource or resource set is associated with at least one target path; Or, One target path is associated with at least one resource or resource set.

27. The method of any one of claims 22-26, wherein, Different target paths are associated with different resources or resource sets, or different types of target paths are associated with different resources or resource sets.

28. The method of any one of claims 22-27, wherein, Reporting configuration information of one resource or resource set associated with at least one target path.

29. The method of any one of claims 22-28, wherein, The reporting configuration information of the target path includes at least one of the following: An index of a report configuration associated with at least one target path; A type of a report configuration associated with at least one target path; A number of report configurations associated with at least one target path; Information on a frequency domain of a report configuration associated with at least one target path; A time domain restriction on a measurement report associated with at least one target path.

30. The method of any one of claims 22-29, wherein, The configuration information of the first signal associated with the target path includes at least one of the following: a sequence type, a sequence length, a sequence shift register initial value, a sequence primitive polynomial, a sequence truncation position, a sequence root sequence number, and a sequence cyclic shift value.

31. The method of any one of claims 19-30, wherein, The measurement result associated with the target path includes at least one of the following: A type of a detected or identified target path; A number of at least one type of target path; An index of at least one type of target path; A first parameter of at least one type of target path, the first parameter being used to indicate a tendency or priority of using the target path to perform a sensing service; A second parameter of at least one type of target path, the second parameter being used to indicate a similarity or difference between two target paths, or a similarity or difference between channels formed by the two target paths; A complex amplitude of at least one type of target path; A power of at least one type of target path; A time delay of at least one type of target path; An angle of at least one type of target path; A measurement value of at least one of the target indicators of at least one type of target path, the target indicators being sensing-related indicators.

32. The method of claim 31, wherein, The target indicators include at least one of the following: A received power-related indicator; An interference and noise power-related indicator; A sensing channel quality-related indicator, the sensing channel quality including at least one of the following: a signal-to-interference-plus-noise ratio (SINR), a signal-to-noise ratio (SNR), a signal-to-interference ratio (SIR), and a reference signal received quality (RSRQ).

33. The method of any one of claims 19-32, wherein, The method further includes: The network side device sending sensing prior information to the terminal; Or, The network-side device receives the perception prior information from the terminal.

34. The method of claim 33, wherein, The perception prior information comprises at least one of: Position information of the terminal; State information of the terminal; Position information of the reflector; State information of the reflector; Attribute information of the reflector.

35. The method of claim 33 or 34, wherein, The method further comprises: The network-side device determines configuration information associated with the target path according to the perception prior information.

36. The method of any one of claims 19-34, wherein, The first information further comprises a precoding type indication, the precoding type indication being used to indicate a type of reported precoding information, the type of precoding information comprising at least one of precoding information for perception, precoding information for communication, and precoding information for both perception and communication.

37. The method of any one of claims 19-36, wherein, The target path-associated precoding information is associated with the target path-associated measurement result; Or, The target path-associated precoding information is associated with both the target path-associated measurement result and a communication performance index.

38. The method of any one of claims 19-37, wherein, The method further comprises: The network-side device determines precoding for perception service according to the first information.

39. A measurement reporting apparatus, comprising: Comprise: A receiving module, configured to receive target path-related configuration information from a network-side device, the target path comprising at least one of: a multi-path passing through a perception target, a multi-path passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector being a static reflector in an environment; A processing module, configured to measure a first signal transmitted by the network-side device according to the target path-related configuration information, and obtain first information, the first information comprising at least one of: target path-associated precoding information and target path-associated measurement result; A sending module, configured to report the first information to the network-side device.

40. The device of claim 39, wherein, The multi-path passing through the perception target comprises at least one of: A first target path, used to represent a multi-path from the network-side device to the terminal via a perception target; A second target path, used to represent a multi-path from the network-side device to the terminal via a second reflector and a perception target in sequence; A third target path, used to represent a multi-path from the network-side device to the terminal via a perception target and a third reflector in sequence; A fourth target path, used to represent a multi-path from the network-side device to the terminal via a fourth reflector, a perception target, and a fifth reflector in sequence.

41. The apparatus of claim 39 or 40, wherein, The target path-associated precoding information comprises at least one of: X1 spatial domain vectors or port selection vectors associated with at least one target path, or X1 indexes used to determine the spatial domain vectors or port selection vectors associated with at least one target path, X1 being a positive integer; X2 vectors composed of linear combinations of at least two spatial domain basis vectors, or indexes used to determine the at least two spatial domain basis vectors and merging coefficients of the linear combinations of the at least two spatial domain basis vectors, or indexes used to determine the at least two spatial domain basis vectors and indexes used to determine the merging coefficients of the linear combinations of the at least two spatial domain basis vectors, X2 being a positive integer.

42. A measurement reporting apparatus, comprising: Comprise: The sending module is configured to send configuration information of target paths to the terminal, the target paths including at least one of the following: a path passing through a sensing target, a path passing through a first reflector, and a direct path between the terminal and the network-side device; the first reflector is a static reflector in the environment. The receiving module is configured to receive first information from the terminal, the first information including at least one of the following: precoding information associated with the target paths and measurement results associated with the target paths.

43. The device of claim 42, wherein, The path passing through the sensing target includes at least one of the following: A first target path, representing a path from the network-side device to the terminal via the sensing target; A second target path, representing a path from the network-side device to the terminal via the second reflector and the sensing target in sequence; A third target path, representing a path from the network-side device to the terminal via the sensing target and the third reflector in sequence; A fourth target path, representing a path from the network-side device to the terminal via the fourth reflector, the sensing target, and the fifth reflector in sequence.

44. The device of claim 42 or 43, wherein, The precoding information associated with the target paths includes at least one of the following: X1 spatial domain vectors or port selection vectors associated with at least one target path, or X1 indexes for determining the spatial domain vectors or port selection vectors associated with at least one target path, X1 being a positive integer; X2 vectors composed of linear combinations of at least two spatial domain basis vectors, or indexes for determining the at least two spatial domain basis vectors and combining coefficients of the linear combinations of the at least two spatial domain basis vectors, or indexes for determining the at least two spatial domain basis vectors and indexes for determining the combining coefficients of the linear combinations of the at least two spatial domain basis vectors, X2 being a positive integer.

45. A terminal, characterized by A processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the measurement reporting method according to any one of claims 1 to 18.

46. A network-side device, comprising: A processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the measurement reporting method according to any one of claims 19 to 38.

47. A readable storage medium characterized by, The readable storage medium stores programs or instructions, the programs or instructions being executed by the processor to implement the steps of the measurement reporting method according to any one of claims 1 to 18 or the steps of the measurement reporting method according to any one of claims 19 to 38.

48. A computer program product, characterised in that, The computer program product is executed by at least one processor to implement the steps of the measurement reporting method according to any one of claims 1 to 18 or the steps of the measurement reporting method according to any one of claims 19 to 38.

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