Information sending method and apparatus, information receiving method and apparatus, and device

Abstract

The present application relates to the technical field of communications, and discloses an information sending method and apparatus, an information receiving method and apparatus, and a device. The information sending method of embodiments of the present application comprises: a first node performs first sensing measurement on a first signal sent by a second node to obtain first target information; and the first node sends the first target information to the second node, wherein the first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node.

Description

Information sending method, information receiving method, device and equipment

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to Chinese Patent Application No. 202411024961.6, filed on July 29, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of communication, and specifically relates to an information sending method, an information receiving method, a device and equipment. BACKGROUND

[0004] In related technologies, due to the large array size of the antenna array of the communication device, different propagation paths exist in different regions of the array, and the channel presents spatial non-stationary characteristics. For an antenna array, the reflection (or scattering) signals of some reflectors (or scatterers) in the environment can only be received by the antennas in a certain local region of the array; conversely, only the transmission signals of the antennas in a certain local region of the array can be reflected (or scattered) by some reflectors (or scatterers) in the environment. This local region is called a visible region. However, if the spatial non-stationary characteristics are not considered, the communication device transmits or receives signals through the entire antenna array, which results in large power consumption of the device. SUMMARY

[0005] Embodiments of the present application provide an information sending method, an information receiving method, a device and equipment, which can solve the problem of large power consumption of the device.

[0006] In a first aspect, an information sending method is provided, executed by a first node, and the method comprises:

[0007] The first node performs first sensing measurement on a first signal transmitted by a second node to obtain first target information;

[0008] The first node transmits the first target information to the second node;

[0009] The first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node.

[0010] In a second aspect, an information receiving method is provided, executed by a second node, and the method comprises:

[0011] The second node transmits a first signal;

[0012] The second node receives first target information sent by the first node, the first target information being related information of a first region, the first region being a partial region of an antenna array of at least one of the first node and the second node.

[0013] In a third aspect, an information sending apparatus is provided, comprising:

[0014] a processing module configured to perform first sensing measurement on a first signal sent by a second node to obtain first target information;

[0015] a sending module configured to send the first target information to the second node;

[0016] The first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node.

[0017] In a fourth aspect, an information receiving apparatus is provided, comprising:

[0018] a sending module configured to send a first signal;

[0019] a receiving module configured to receive first target information sent by the first node, the first target information being related information of a first region, and the first region being a partial region of an antenna array of at least one of the first node and the second node.

[0020] In a fifth aspect, an information sending apparatus is provided, the apparatus being configured to perform the steps of the method according to the first aspect.

[0021] In a sixth aspect, an information receiving apparatus is provided, the apparatus being configured to perform the steps of the method according to the second aspect.

[0022] In a seventh aspect, a first node is provided, 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 method according to the first aspect.

[0023] In an eighth aspect, a first node is provided, comprising a processor and a communication interface, wherein

[0024] the processor is configured to perform first sensing measurement on a first signal sent by a second node to obtain first target information;

[0025] the communication interface is configured to send the first target information to the second node;

[0026] The first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node.

[0027] In a ninth aspect, a second node is provided, which includes a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement steps of the method in the second aspect.

[0028] In a tenth aspect, a second node is provided, which includes a processor and a communication interface, wherein,

[0029] The communication interface is configured to send a first signal.

[0030] The communication interface is further configured to receive first target information sent by the first node, the first target information being related information of a first region, and the first region being a partial region of an antenna array of at least one of the first node and the second node.

[0031] In an eleventh aspect, a readable storage medium is provided, the readable storage medium storing programs or instructions, and the programs or instructions are executed by a processor to implement steps of the method in the first aspect or implement steps of the method in the second aspect.

[0032] In a twelfth aspect, a wireless communication system is provided, which includes a first node and a second node, the first node being configured to implement steps of the method in the first aspect, and the second node being configured to implement steps of the method in the second aspect.

[0033] In a thirteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to run programs or instructions to implement the method in the first aspect or implement the method in the second aspect.

[0034] In a fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the method in the first aspect or implement the method in the second aspect.

[0035] In the embodiments of the present application, the first node performs first sensing measurement on the first signal sent by the second node to obtain first target information, the first node sends the first target information to the second node, the first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node. In this way, the sending or receiving of signals is performed through the first region, so that the power consumption of the device can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0036] Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0037] Fig. 2a is a diagram illustrating propagation of a near-field spherical wave and a far-field plane wave according to an embodiment of the present application;

[0038] Fig. 2b is a diagram illustrating spatial non-stationarity according to an embodiment of the present application;

[0039] Fig. 2c is a diagram illustrating multipath in a first dimension of a channel response according to an embodiment of the present application;

[0040] Fig. 3 is a flowchart of a method for transmitting information according to an embodiment of the present application;

[0041] Fig. 4 is a diagram illustrating a basic unit according to an embodiment of the present application;

[0042] Fig. 5 is a diagram illustrating a basic unit according to another embodiment of the present application;

[0043] Fig. 6 is a flowchart of a method for receiving information according to an embodiment of the present application;

[0044] Fig. 7 is a diagram illustrating a structure of an apparatus for transmitting information according to an embodiment of the present application;

[0045] Fig. 8 is a diagram illustrating a structure of an apparatus for receiving information according to an embodiment of the present application;

[0046] Fig. 9 is a diagram illustrating a structure of a communication device according to an embodiment of the present application;

[0047] Fig. 10 is a diagram illustrating a structure of a terminal according to an embodiment of the present application;

[0048] Fig. 11 is a diagram illustrating a structure of a network-side device according to an embodiment of the present application;

[0049] Fig. 12 is a diagram illustrating a structure of a network-side device according to another embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of the present application.

[0051] 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.

[0052] 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.

[0053] It is worth noting that the technology described in the embodiments of the present application is 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 the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0054] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0055] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0056] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices jointly, and the embodiments of the present application do not make a specific limitation in this regard. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a special hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0057] For the convenience of understanding, some contents related to the embodiments of the present application are explained as follows:

[0058] 1. Spherical wave propagation and spatial non-stationarity

[0059] In the 5G NR system, it is considered that the user equipment (User Equipment, UE, i.e., terminal) is always in the far-field area of the base station. At this time, the signal propagation between the base station and the UE can be approximately modeled by a plane wave model. As shown in FIG. 2a, in the plane wave model, the propagation paths between each antenna of the base station and the UE or reflector (or scatterer) are parallel, so the phase difference of the propagation paths between each antenna and the UE / reflector (or scatterer) is only determined by the antenna array geometry. Based on the plane wave model, the beam angle of the base station can be controlled by controlling the phase difference between each antenna of the base station.

[0060] Compared with the 5G NR channel model, the 6G wireless channel model adds a near-field spherical wave model and a spatial non-stationarity model. In the near-field area, the propagation paths between each antenna of the base station and the UE / reflector (or scatterer) can no longer be considered parallel and need to be modeled by a spherical wave. There are several differences between near-field communication and far-field communication. The first is the nonlinear variation of the phase of the received signal over the entire array. Under far-field conditions, the phase of the array steering vector scales approximately linearly for different elements, making mathematical analysis easy to handle. However, this property does not hold in the near field. Second, as the array aperture increases, the amplitude / path loss variation of the entire array needs to be considered. This is because the distance between the user and the center of the array can be very different from the distance between the user and the edge of the array. Third, in the near field, the tilt angle of the incident wave changes greatly from the center of the array to the edge, which causes the effective projection aperture of different antennas on the array to change.

[0061] Another change of 6G wireless channel model is the channel spatial non-stationarity, i.e., due to the large antenna array size, different propagation paths exist in different regions of the array, and the channel exhibits spatial non-stationarity. For a large-scale antenna array, the reflection (or scattering) signal of some reflectors (or scatterers) in the environment can only be received by the antennas in a certain local region of the array. Conversely, only the transmitted signal of the antennas in a certain local region of the array can be reflected (or scattered) by some reflectors (or scatterers) in the environment. Correspondingly, this local region is called the visible region (of multipath on the array). As shown in FIG. 2b, the visible region of "far-field cluster 1" is "visible region 1", and the visible region of "near-field cluster 1" is "visible region 2". It should be pointed out that, for the sake of clear description, FIG. 2b only draws the cluster whose visible region area (or length) is smaller than the entire array of the base station (BS). In the actual environment, there are also reflectors (or scatterers) whose visible region is the entire array.

[0062] 2. Channel model and codebook feedback of near-field multiple input multiple output (MIMO)

[0063] Reference [1]: Z. Yuan, J. Zhang, etc. "Spatial non-stationary near-field channel modeling and validation for massive MIMO systems," IEEE Transactions on antennas and propagation, vol. 71, no. 1, Jan. 2023.

[0064] Reference [1] gives a channel modeling method considering near-field spherical wave and spatial non-stationarity. It is assumed that the wireless channel contains K transmission paths, and the wireless channel is represented as the superposition of the channel frequency response (CFR) of K transmission paths at frequency f. The near-field characteristic parameter A and the spatial non-stationarity parameter S are introduced to represent the near-field spatial non-stationary channel, as follows:

[0065] where is an M*N matrix, and the system operating frequency band f∈[f L ,f U,⊙ represents an element-wise product operation. A(θ,φ,d) represents a spherical wave correction model, and parameters θ,φ,d represent the vertical angle, horizontal angle, and distance of the scatterer in the local coordinate system of the antenna array relative to the reference point / local coordinate system origin (e.g., the center point of the antenna array, or the upper left corner, etc.) of the antenna array. represents a plane wave model. Note that the above channel model assumes that the wireless channel is near-field spherical wave, spatially non-stationary on one side, and far-field plane wave, spatially stationary on the other side, for example, the base station antenna array is large and uses the near-field, spatially non-stationary model, and the terminal antenna array is small and uses the far-field, spatially stationary model; if both sides are near-field spherical wave models, then the difference is corrected to

[0066] For the frequency point f of the communication system, the plane wave channel H(α,τ,θ,φ) composed of K paths is represented as

[0067] where {α k ,τ k} represents the amplitude and transmission delay of the kth path. represents the difference of the spherical wave model relative to the plane wave transmission, where the element a m,k represents the correction value of the spherical wave model of the kth transmission path on the mth antenna of the base station.

[0068] where d k represents the vector from the reference point (e.g., the center point of the array) of the antenna array of the base station to the scatterer k (it can be understood that the kth transmission path is generated by scattering / refraction / reflection of the scatterer k).

[0069] where {θ k ,φ k} represents the vertical and horizontal angles of the kth path relative to the array normal of the reference point.

[0070] The vector d m,k =d k -d m represents the vector from the mth antenna to the scatterer of the kth transmission path, where d m represents the vector from the mth antenna to the reference point of the antenna array.

[0071] The matrix S is used to represent the spatial non-stationary characteristics of the K transmission paths, S=[s1,…,s k ,…,s K ] s k= [s 1,k ,…,s m,k ,…,s M,k ] T

[0072] where s m,k represents the visibility of the mth antenna to the kth transmission path,

[0073] The matrix represents the modeling of the receiving end of the N antennas, which is similar to the modeling of A(θ, φ, d). For ordinary terminals, the near-field spherical wave and the spatial non-stationary characteristics can be ignored, and thus the parameters d and the matrix S are omitted.

[0074] Based on the above channel model, the end-to-end received signal can be represented as Y = H sns WX

[0075] After reconstructing the expression according to the spatial non-stationary characteristics

[0076] This means that for the spatial non-stationary channel, the transmission precoding vector W can be reconstructed / feedback according to the spatial non-stationary characteristics. For example, for the ZF (zero forcing), the expression is R represents the receiving matrix on the terminal side.

[0077] Further, in the actual channel, it can be a mixed propagation scenario of near-field transmission paths and far-field transmission paths, and the energies of the K transmission paths are different. Therefore, a few spatial non-stationary paths with strong energy can be selected for separate feedback considering the spatial non-stationary characteristics, and other paths are considered as a whole and fed back in the existing manner, that is,

[0078] where represents the set of spatial non-stationary transmission paths with strong energy (or exceeding a threshold), and G represents the superposition response outside the transmission path. It can be understood that for the first term the information s k , τ κ in the spatial non-stationary region and the corresponding beam vector in the region need to be fed back; for the second term R*G, the beam vector is fed back in the existing Type I or Type II manner.

[0079] In general, the new precoding matrix indication (PMI) feedback includes two parts: the PMI component of the spatial non-stationary channel and the PMI component corresponding to other channels.

[0080] 3. Network energy saving

[0081] Massive Multiple Input Multiple Output (MIMO) has high energy consumption due to a large number of antennas and corresponding radio frequency devices. Traditional base station energy saving mainly adopts means such as field power-off, time control switch and cell closure, but these means are relatively extensive and cannot take into account user perception. In the 5G era, due to the use of 64T64R large-scale array antennas by 5G base stations, support for larger bandwidth and other factors, the energy consumption of 5G base stations is higher than that of 4G base stations. In addition, the 5G frequency band is high, and the coverage range of a single station is small. To achieve the coverage effect of the 4G network, the deployment scale of the 5G base station will be 2-3 times that of the 4G base station. With larger device power consumption and more sites, power consumption will be even greater, and the high power consumption of 5G has become a pain point of current network operation.

[0082] Base station energy saving can be divided into symbol shutdown, carrier shutdown, channel shutdown and deep sleep technology according to the implementation principle. When the number of UEs in the cell is small, the capacity / coverage gain brought by mMIMO will be redundant, at which time the network side can turn off part of the transceiver unit (TXRU) to achieve the purpose of network energy saving. Part of the TXRU corresponding to the antenna unit can be turned off to serve a small number of users. After turning off part of the TXRU, the coverage range of the beam will be reduced and the beam width will be increased.

[0083] When selecting to shut down the TxRU, the spatial non-stationary characteristics of the wireless signal can be considered, and the TxRU in the visible area can be turned on to enter the network energy-saving (NES) state. Therefore, the terminal device can report the visible area of the base station antenna array to assist the network to determine the appropriate NES configuration.

[0084] 4. Noun explanation

[0085] Explanation 1: Perception measurement

[0086] The perception measurement includes at least one of the following:

[0087] (1) First level measurement quantity (received signal / original channel information), including: received signal / channel response complex result, amplitude / phase, I / Q and their operation results (operations include addition, subtraction, multiplication, division, matrix addition, multiplication, matrix transpose, trigonometric relationship operation, square root operation and power operation, etc., as well as threshold detection results of the above operation results, maximum / minimum value extraction results, etc.; operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform and digital filtering, etc., as well as threshold detection results of the above operation results, maximum / minimum value extraction results, etc.);

[0088] (2) Second level measurement quantity (basic measurement quantity), including: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0089] (3) Third level measurement quantity (basic attribute / state), including: distance, speed, orientation, spatial position, acceleration;

[0090] (4) Fourth level measurement quantity (advanced attribute / state), including: whether the target exists, trajectory, action, expression, vital sign, quantity, imaging result, weather, air quality, shape, material, composition.

[0091] (5) Perception result, which can be a measurement result obtained by further operation (including addition, subtraction, multiplication, division, or according to a certain predetermined function) on the above-mentioned perception measurement quantity measurement value. The perception result can also be a measurement value of at least one of the above-mentioned perception measurement quantities.

[0092] In addition, the above-mentioned perception measurement quantity further includes corresponding label information, including at least one of the following:

[0093] Perception signal identification information;

[0094] Perception measurement configuration identification information;

[0095] Perception service information (for example, perception service identification (ID));

[0096] Data subscription ID;

[0097] Measurement quantity purpose (communication, perception, communication and perception);

[0098] Time information;

[0099] perception node information (e.g., UE ID, node location, device orientation);

[0100] perception link information (e.g., perception link serial number, transceiving node identification);

[0101] measurement quantity description information (form, e.g., amplitude value, phase value, complex value combining amplitude and phase; or resource type, e.g., time domain measurement result, frequency domain resource measurement result);

[0102] measurement quantity index information (e.g., Signal-to-Noise Ratio (SNR), perception SNR).

[0103] Explanation 2: Perception performance evaluation index

[0104] The perception performance evaluation index can be calculated based on the perception measurement quantity, and includes at least one of the following:

[0105] 1) target index, specific definition and calculation method are described in the following explanation 3 of the target index;

[0106] 2) statistical mean, standard deviation or variance of multiple measurement results of the same perception measurement quantity;

[0107] 3) deviation between the predicted value and the actual measurement value of the perception measurement quantity / perception result, and statistical mean, standard deviation or variance of the deviation;

[0108] 4) Ambiguity Function related evaluation index, including Normalized Sidelobe Level (NSL), i.e., the height of the highest sidelobe of the normalized Ambiguity Function; or the ratio of the main lobe to the highest sidelobe (or the ratio of the highest sidelobe to the main lobe) of the Ambiguity Function; in addition, the number of normalized Ambiguity Function sidelobes with a peak value higher than a given threshold / total power / total energy, the main lobe width (3dB width) of the Ambiguity Function, etc. can also be included;

[0109] 5) Cramér-Rao Lower Bound (CRLB), which is the lowest variance that all unbiased estimators can achieve, mathematically equal to the inverse of Fisher information, and this evaluation index is related to the perception SNR;

[0110] 6) Capacity-Distortion Tradeoff, which quantitatively gives the maximum achievable rate of reliable transmission of the integrated sensing and communication system under a given distortion constraint;

[0111] 7) Equivalent-MSE, which converts the spectrum efficiency of communication into the equivalent MSE of radar, and combines the CRLB to get the result;

[0112] 8) Estimation-Communication Rate, which takes the sensing channel as a non-cooperative communication channel, and the mutual information between the sensing system and the target is the estimation rate;

[0113] 9) Welch Bound;

[0114] 10) A reproducible evaluation index of sensing (such as the sum of Euclidean distances between two sequence samples before and after, or the regular path distance in dynamic time warping (DTW), or other indicators that can reflect the similarity of two sequences, including but not limited to: Longest Common Subsequence (LCSS), Edit Distance on Real Sequences (EDR), Edit Distance with Real Penalty (ERP), Hausdorff Distance, Frechet Distance, One Way Distance (OWD), Locality In-between Polylines (LIP), etc.);

[0115] 11) Any at least two of the above sensing SNR, sensing signal to interference plus noise ratio (SINR), CRLB, etc. indicators, after any at least one operation of addition, subtraction, multiplication, or division, the calculation result.

[0116] Explanation 3: Parameter configuration information

[0117] The parameter configuration information includes at least one of the following:

[0118] Waveform type, e.g., Orthogonal Frequency Division Multiplexing (OFDM), Single-carrier Frequency-Division Multiple Access (SC-FDMA), OTFS, Frequency Modulated Continuous Wave FMCW, pulsed signal, etc.

[0119] Subcarrier spacing: e.g., 30 kHz for OFDM system;

[0120] Guard interval: time interval between the end of signal transmission and the time when the latest echo signal of the signal is received; this parameter is proportional to the maximum sensing distance; it can be calculated by 2d max c max is the maximum sensing distance (belongs to sensing requirement), e.g., for self-generated self-received sensing signal / reference signal, d max represents the maximum distance from the signal transceiver point to the signal transmission point; in some cases, the OFDM signal cyclic prefix (CP) can act as a minimum guard interval;

[0121] Bandwidth: this parameter is inversely proportional to the distance resolution, which can be calculated by c / (2Ad), where Adis the distance resolution (belongs to sensing requirement); c is the speed of light;

[0122] Burst duration: this parameter is inversely proportional to the velocity resolution (belongs to sensing requirement), which is the time span of the signal, mainly for calculating the Doppler frequency offset; this parameter can be calculated by c / (2f c Av c is the carrier frequency of the signal;

[0123] Time domain interval: this parameter can be calculated by c / (2f c v range ); where v range is the maximum velocity minus the minimum velocity (belongs to sensing requirement); this parameter is the time interval between two adjacent signals;

[0124] Transmit signal power, e.g., from -20 dBm to 23 dBm with an interval of 2 dBm;

[0125] Signal format, e.g., SRS, DMRS, PRS, etc., or other pre-defined signals, and related sequence format information, etc.

[0126] Signal direction; e.g., the direction or beam information of the sensing signal / reference signal;

[0127] Time resource, e.g. time slot index or symbol index of time slot where the sensing signal / reference signal is located; where the time resource is divided into two types, one is one-shot time resource, e.g. one symbol to send one omni-directional signal; one is non-one-shot time resource, e.g. multiple groups of periodic time resource or discontinuous time resource (may contain start time and end time), each group of periodic time resource to send signal in the same direction, different groups of periodic time resource have different beam direction;

[0128] Frequency resource, including center frequency point, bandwidth, resource block (RB) or subcarrier, point (Point) A, start bandwidth position, etc. of the signal;

[0129] Quasi co-location (QCL) relationship, e.g. the sensing signal includes multiple resources, each resource is QCL with one Synchronization Signal Block (SSB), QCL includes Type A, B, C or D;

[0130] Antenna configuration information.

[0131] Wherein, the antenna configuration information includes at least one of the following:

[0132] Antenna element index or antenna port index used for transmitting and / or receiving the sensing signal / reference signal;

[0133] Panel index + element index used for transmitting and / or receiving the sensing signal / reference signal;

[0134] Position information of the antenna element used for transmitting and / or receiving the sensing signal / reference signal relative to a certain local reference point on the antenna array (can be represented by Cartesian coordinates (x, y, z) or spherical coordinates );

[0135] Position information of the panel used for transmitting and / or receiving the sensing signal / reference signal relative to a certain local reference point on the antenna array (can be represented by Cartesian coordinates (x, y, z) or spherical coordinates ), and the position information of the antenna element used for transmitting the sensing signal within the selected panel relative to a certain uniform reference point (e.g. the center point of the panel) of the panel (can be represented by Cartesian coordinates (x, y, z) or spherical coordinates );

[0136] Bitmap information of antenna elements. For example: the bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving sensing signals / reference signals, and "0" to indicate that the element is not selected; or uses "0" to indicate that the element is selected, and "1" to indicate that the element is not selected.

[0137] Bitmap information of array panel. For example: the bitmap uses "1" to indicate that the panel is selected for transmitting and / or receiving sensing signals / reference signals, and "0" to indicate that the element is not selected; or uses "0" to indicate that the element is selected, and "1" to indicate that the element is not selected. And the element bitmap information in the selected panel.

[0138] Antenna element amplitude and phase gain information, i.e. antenna element pattern information.

[0139] Explanation 4: Target indicator

[0140] The target indicator refers to a sensing-related indicator measured by a receiving device such as a base station or a UE, including at least one of the following three categories:

[0141] The first category: a received power-related indicator, including at least one of the following indicators:

[0142] (1) The first indicator (received power of the sensing target associated path): the linear average value (unit: W) of the received power of the path associated with the sensing target in the channel response measured for the first signal on the resource unit carrying the first signal. The resource unit is a time domain and / or frequency domain resource unit.

[0143] The second category: an interference and noise power-related indicator, including at least one of the following indicators:

[0144] The second indicator: the linear average value of the power of the path other than the sensing target associated path in the channel response of the first signal on the target resource, and the linear average value of the interference and noise power of other signals other than the first signal on the target resource or other resources (for example, resources configured by high layer signaling) (unit: W); wherein the target resource can be a time-frequency domain resource unit carrying the first signal.

[0145] The second index = total received power - the first index; wherein the total received power can be represented as: a linear average (in units of W) of the total received power (including the received power of signals of the serving cell and non-serving cells, adjacent channel interference and thermal noise, etc.) on the target resource; or, total received power = RSSI*K1, K1 is a coefficient, the measurement resource of RSSI is the target resource or other resource (for example, a resource configured by high-layer signaling), and the Received Signal Strength Indication (RSSI) is defined in the same manner as 3GPP TS 38.215;

[0146] The third index: a linear average (in units of W) of the interference and noise power of other signals (except the first signal) on the target resource or other resource (for example, a resource configured by high-layer signaling);

[0147] The third index = total received power - the first signal received power; wherein the first signal received power is the Reference Signal Receiving Power (RSRP) of the first signal, and the RSRP is defined in the same manner as TS 38.215.

[0148] The fourth index: a linear average (in units of W) of the power of other paths (except the target associated path) in the channel response of the first signal on the target resource;

[0149] The fourth index = RSRP of the first signal - the first index.

[0150] The third type: several indexes related to the perceived SINR / SNR / SIR / Reference Signal Received Quality (RSRQ), including at least one of the following indexes:

[0151] The fifth index (the first perceived SINR / SNR / SIR) = the first index / the second index;

[0152] The sixth index (the second perceived SINR / SNR / SIR) = the first index / the third index;

[0153] The seventh index (the third perceived SINR / SNR / SIR) = the first index / the fourth index;

[0154] The eighth index (perceived RSRQ) = K2*the first index / total received power, K2 is a coefficient.

[0155] The explanations of the above indexes are as follows:

[0156] For example, the first index is calculated in the following manner:

[0157] For example, the terminal receives the first signal, and performs channel estimation based on the transmitted first signal X(k) and the received signal Y(k) corresponding to the first signal to obtain the channel response H(k) = Y(k) / X(k), where k = 0, 1, 2, …, K-1 represents the resource unit index. After the terminal obtains the channel response H(k), it is transformed to the first dimension, and the perception target correlation radius is determined in the first dimension. Then the power of the perception target correlation radius is calculated as the first index, and if the perception target correlation radius includes multiple paths, the sum of the powers of the multiple paths is calculated as the first index.

[0158] The first dimension includes one of the following:

[0159] Delay dimension;

[0160] Doppler dimension;

[0161] Azimuth angle dimension;

[0162] Elevation angle dimension;

[0163] At least two joint dimensions among the delay dimension, the Doppler dimension, the azimuth angle dimension, and the elevation angle dimension. For example, delay-Doppler dimension, delay-Doppler-angle dimension, etc.

[0164] For example, H(f) is the channel response, where f = 0, 1, 2, …, N-1 represents the frequency domain sampling point (for example, the subcarrier index), and by performing inverse Fourier transform on H(f), it can be transformed to the delay dimension (first dimension). For another example, H(f, t) is the channel response, where f = 0, 1, 2, …, N-1 represents the frequency domain sampling point (for example, the subcarrier index), and t = 0, 1, 2, …, M-1 represents the time domain sampling point (for example, the OFDM symbol index), and by performing inverse Fourier transform along the frequency domain dimension and Fourier transform along the time domain dimension on H(f, t), it can be transformed to the delay-Doppler dimension (first dimension). For another example, H(f, t, s) is the channel response, where f = 0, 1, 2, …, N-1 represents the frequency domain sampling point (for example, the subcarrier index), t = 0, 1, 2, …, M-1 represents the time domain sampling point (for example, the OFDM symbol index), and s = 0, 1, 2, …, P-1 represents the spatial domain sampling point (antenna index or port index), and by performing inverse Fourier transform along the frequency domain dimension, Fourier transform along the time domain dimension, and Fourier transform along the antenna domain dimension on H(f, t, s), it can be transformed to the delay-Doppler-angle dimension (first dimension).

[0165] In one implementation, a method for determining a path associated with a sensing target from a channel response measured from a first signal is provided:

[0166] A first path set is determined. The paths in the first path set include paths whose amplitudes / powers / strengths / energies exceed a certain threshold after the channel response is transformed to a first dimension. (For example, in FIG. 2c, paths 0, 1, 2, and 3 are paths in the first path set.) The certain threshold can be set to be higher than a noise threshold or higher than a noise plus interference threshold. It is noted that this step (determining the first path set) is optional, and the path associated with the sensing target can be determined based on the next step only. FIG. 2c is an illustration of multi-paths in a first dimension (delay dimension, Doppler dimension, azimuth dimension, or elevation dimension) of a channel response. In FIG. 2c, the horizontal axis is the first dimension, and the vertical axis is the normalized amplitude / power / strength / energy.

[0167] A path that satisfies a first condition is selected from the first path set or from all paths as the path associated with the sensing target.

[0168] The first condition includes at least one of the following:

[0169] The amplitude / power / strength / energy of the path exceeds a pre-set threshold or is within a pre-set range; for example, the pre-set threshold is 5 times higher than a noise threshold.

[0170] The Doppler of the path exceeds a pre-set threshold or is within a pre-set range.

[0171] The delay of the path exceeds a pre-set threshold or is within a pre-set range.

[0172] The angle of the path exceeds a pre-set threshold or is within a pre-set range.

[0173] The difference in amplitude / power / strength / energy between the path and a first-arrival path (e.g., a Line of Sight (LOS) path) or a reference path (e.g., a path of a signal reflected by a known target (e.g., a Reconfigurable Intelligent Surface (RIS), a Backscatter device, or other known passive target)) exceeds a pre-set threshold or is within a pre-set range.

[0174] The difference in Doppler between the path and a first-arrival path (e.g., a LOS path) or a reference path (e.g., a path of a signal reflected by a known target (e.g., a RIS, a Backscatter device, or other known passive target)) exceeds a pre-set threshold or is within a pre-set range.

[0175] The time delay difference between the path and the first-arriving path (e.g., the LOS path) or the reference path (e.g., the path of the signal reflected by a known target (e.g., an RIS / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or is within a preset interval range;

[0176] The angle difference between the path and the first-arriving path (e.g., the LOS path) or the reference path (e.g., the path of the signal reflected by a known target (e.g., an RIS / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or is within a preset interval range;

[0177] The amplitude / power / intensity / energy or phase of the path meets a specific modulation rule, which is the modulation rule of a tag (Tag) / Backscatter device / RIS, i.e., the path associated with the sensing target can be a path modulated and reflected by the Tag / Backscatter device / RIS.

[0178] It should be noted that each of the above first conditions can also be based on the results of a period of time statistics; for example, the proportion of the above indicators (e.g., the Doppler of the path, the time delay of the path, etc.) exceeding the preset threshold or being within the preset interval range reaches a preset proportion within a preset time window, or the number of times that the above indicators (e.g., the Doppler of the path, the time delay of the path, etc.) exceed the preset threshold or are within the preset interval range reaches a preset number within a preset time window.

[0179] The preset threshold or the set interval range is sent by other devices to the receiving device, and the other devices determine the preset threshold or the set interval range according to the sensing prior information or the sensing requirement; or the preset threshold or the set interval range is determined by the receiving device according to the sensing prior information or the sensing requirement.

[0180] The sensing prior information or the sensing requirement can include the following information:

[0181] (1) a perception service or a perception service type, which can be, for example, detection of whether a target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, radar cross section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / air pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, topography, building / vegetation distribution detection, people flow or vehicle flow detection, crowd density or vehicle density detection, etc. The perception service type can be a classification of multiple different perception services according to certain characteristics, for example, classified into detection type perception services (for example, including intrusion detection, fall detection), parameter estimation type perception services (distance, angle, speed calculation), recognition type perception services (action recognition, identity recognition), etc., can also be classified according to the range of perception (short-range perception, medium-range perception, long-range perception), classified according to the degree of perception (coarse-grained perception, fine-grained perception, etc.), classified according to power consumption / energy consumption, classified according to resource occupation, etc. If the perception service is respiration monitoring, the corresponding normal respiration frequency can be determined according to the gender and age of the person (for example, male: 13-21 times / minute, female: 15-20 times / minute; adult: 12-20 times / minute, child: about 30-40 times / minute). The perception service or the perception service type can be used as perception prior information.

[0182] (2) a perception target area: refers to the position area of the perception object, or the position area that needs to be imaged or environment reconstructed; for example, according to the approximate position / distance of the perception object, a preset interval range of the time delay of the perception target associated radius is determined.

[0183] (3) a perception object type: classifies the perception objects according to their possible motion characteristics, and each perception object type contains information such as the motion speed range, the motion acceleration range, and the typical RCS range of the typical perception object.

[0184] (4) the number of perception targets; for example, the number of perception targets can be obtained from the camera perception result as a kind of perception prior information.

[0185] For example, in FIG. 2c, radii 0, 1, 2, and 3 are radii in the first radius set, wherein radii 2 and 3 are perception radii that satisfy the first condition (for example, their time delays satisfy a preset threshold), and radii 0 and 1 are radii associated with other scatterers.

[0186] For frequency range 1, the reference point of the first indicator can be the antenna connector of the receiving device, such as a terminal. For frequency range 1, if the receiving device has multiple receiving channels, the first indicator measured and reported by the receiving device cannot be lower than the indicator of any single receiving channel. For frequency range 2, the first indicator measured by a certain receiving channel needs to be measured on the combined signal on multiple antenna elements corresponding to the receiving channel.

[0187] For example, another calculation method (optional) of the first indicator is as follows:

[0188] Optionally, when calculating the received power of the sensing target associated range, the difference between the power of the sensing target associated range in the first dimension and may be taken as the first indicator, where N1 represents the number of the sensing target associated ranges. is the average power of the multiple ranges other than the first range set in the first dimension.

[0189] For example, the calculation method of the received power of the first signal is as follows:

[0190] The received power of the first signal can be that, after the receiving device obtains the channel response H(k), the channel response H(k) is transformed to the first dimension, the first range set is determined in the first dimension, and then the power sum of all ranges in the first range set is calculated.

[0191] For example, another calculation method (optional) of the received power of the first signal is as follows:

[0192] The received power of the first signal can also be the difference between the power sum of all ranges in the first range set in the first dimension and , where N2 represents the number of ranges in the first range set.

[0193] For example, the calculation method of the total received power is as follows:

[0194] The total received power

[0195] For example, the calculation method of the second indicator is as follows:

[0196] The channel response H(k) is subjected to first filtering to obtain H filter1 (k), and then the first filtered received signal Y filter1 (k) is calculated according to H filter1 (k) and the first signal X(k), that is, Y filter1 (k) = Hfilter1 (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.

[0197] The first filtering process is used to eliminate noise and interference in the first dimension, as well as paths associated with non-perceived targets. For example, the first filtering process sets the amplitude / power / intensity / energy of paths other than those associated with perceived targets in Figure 2c to zero. The channel response H after the first filtering process... filter1 (k) does not contain noise and interference, nor does it contain paths associated with non-perceived targets; it only contains paths associated with perceived targets.

[0198] For example, the third indicator is calculated as follows:

[0199] The channel response H(k) is processed by a second filter to obtain H. filter2 (k), then according to H filter2 The 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.

[0200] The second filtering process can be noise interference suppression processing on the first dimension (e.g., setting the amplitude / power / intensity / energy of other paths besides the first path set in Figure 2c to zero), or MMSE filtering. The channel response H after the second filtering process... filter2 (k) does not contain noise and interference, but only contains paths from the first path set.

[0201] As an example, another (optional) way to calculate the third indicator is as follows:

[0202] 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.

[0203] It should be noted that if the receiving device judges multiple sensing targets, or the receiving device obtains the number of sensing targets according to sensing prior information or sensing requirements, the following methods can be used:

[0204] Method 1: Calculate the target index of each sensing target respectively. For example, in FIG. 2c, the radii associated with each sensing target are determined respectively, and then the target index corresponding to each sensing target is calculated respectively; at this time, when calculating the second index corresponding to a sensing target (such as sensing target A), there are two methods: assuming that there are two sensing targets: A and B, the second index of sensing target A = total received power-first index of sensing target A; or, the second index of sensing target A = total received power-first index of sensing target A-first index of sensing target B; similarly, there are two ways to calculate the fourth index: assuming that there are two sensing targets: A and B, the fourth index of sensing target A = RSRP of the first signal-first index of sensing target A; or, the fourth index of sensing target A = RSRP of the first signal-first index of sensing target A-first index of sensing target B.

[0205] Method 2: Calculate a target index for multiple sensing targets. For example, in FIG. 2c, the radii associated with any sensing target are determined, and then these radii are all regarded as the radii associated with the sensing target; which is equivalent to regarding multiple sensing targets as a virtual sensing target, and then calculating the target index corresponding to the virtual sensing target.

[0206] Method 2: Calculate a target index for multiple sensing targets. For example, in FIG. 2c, the radii associated with any sensing target are determined, and then these radii are all regarded as the radii associated with the sensing target; which is equivalent to regarding multiple sensing targets as a virtual sensing target, and then calculating the target index corresponding to the virtual sensing target.

[0207] The information sending method, the information receiving method, the apparatuses and the related devices provided in the embodiments of the present application will be described in detail below in combination with the accompanying drawings and some embodiments and application scenarios.

[0208] Referring to FIG. 3, FIG. 3 is a flowchart of an information sending method provided by an embodiment of the present application, as shown in FIG. 3, the information sending method includes the following steps:

[0209] Step 101: A first node performs first sensing measurement on a first signal sent by a second node, to obtain first target information;

[0210] Step 102: The first node sends the first target information to the second node;

[0211] The first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node.

[0212] The first region can be understood as a visible region corresponding to the spatial non-stationary characteristic from the perspective of the spatial non-stationary characteristic of the wireless channel, i.e., for a signal energy of a transmission path with the spatial non-stationary characteristic, most of the signal energy comes from the antenna transmission in the visible region for the sending end, and most of the signal energy comes from the antenna reception in the visible region for the receiving end.

[0213] In an implementation, the first region can be a visible region of the channel on an antenna array of at least one of the second node and the first node.

[0214] In an implementation, the first region can be a non-visible region of the channel on an antenna array of at least one of the second node and the first node, through which the visible region of the antenna array can be determined.

[0215] It can be understood that, in a physical sense, the first region corresponds to a set / subset of antenna elements in the antenna array; and in a logical sense of the communication system, the first region corresponds to a set / subset of antenna ports. Each transmission path in the wireless channel can have independent spatial non-stationary characteristics, i.e., the first node can obtain one first region or multiple different first regions through the first channel measurement, corresponding to one or multiple different spatial non-stationary transmission paths.

[0216] It can be understood that the spatially stationary transmission path can be regarded as a special case of the spatially non-stationary transmission path, in which the first region / visible region contains the entire region of the antenna array, or corresponds to the entire set of antenna elements of the antenna array, or corresponds to the entire set of antenna ports.

[0217] It can be understood that the spatial non-stationary characteristic of the wireless channel is related to the area of the antenna array, the working frequency band, and the physical environment. Generally, the area of the antenna array of the network side device is larger than that of the terminal side device, and therefore, the spatial non-stationary characteristic of the network side device has a greater probability of occurring in the communication scenario. In some embodiments herein, it is assumed that the first region is the visible region of the network side device.

[0218] In an implementation, the first region can be a subset of a set of antenna ports of at least one of the network side device and the terminal.

[0219] In an implementation, the first region corresponds to a set of ports.

[0220] The first target information can be used to perform a target operation; the target operation includes at least one of the following: a sensing operation; a second sensing measurement.

[0221] The first perception measurement can also be referred to as a perception measurement. The "first" and "second" in the first perception measurement and the second perception measurement are only used to distinguish the two perception measurements.

[0222] The first node can be a terminal, and the second node can be a terminal or a network-side device. Alternatively, the first node can be a network-side device, and the second node can be a terminal or a network-side device.

[0223] For example, the first node can be UE1, and the second node can be UE2 or a BS. Alternatively, the first node can be BS1, and the second node can be UE or BS2.

[0224] It should be noted that, when performing the first perception measurement, the second node transmits the first signal by using all antenna ports. When performing the second perception measurement, the second node transmits the second signal by using the antenna ports / physical antennas corresponding to the first region, so as to ensure that the second signal is mainly concentrated on the propagation path where the perception target is located. Alternatively, the second node transmits the second signal by using perception precoding / beamforming based on the antenna ports / physical antennas corresponding to the first region.

[0225] In addition, the first perception measurement is performed for the purpose of determining the visible region (e.g., the first region) of the first node and / or the second node. The second perception measurement is performed for the purpose of obtaining the parameters related to the perception target, so as to perform fine measurement on the perception target. The signal direction of the first perception measurement is transmitted by the second node and received by the first node. The signal direction of the second perception measurement can be transmitted by the second node and received by the first node, or can be transmitted by the first node and received by the second node.

[0226] In an implementation, after the first node performs the first perception measurement based on the first signal and obtains the first target information, the first node can perform a perception operation based on the first target information. Specifically, the second node determines a precoding vector or a precoding matrix used when performing communication transmission with the first node according to the first target information. The first target information includes a precoding codebook set, one or more first regions, and the first region is associated with one or more precoding codebooks in the precoding codebook set.

[0227] In one embodiment, after the first node performs the first sensing measurement based on the first signal to obtain the first target information, the first node can perform a second sensing measurement based on the first target information. Specifically, the second node determines an antenna subset or an antenna port subset of the second node according to the first target information, which are used by the second node in the energy saving state. The first node performs the second sensing measurement on the reference signal transmitted by the antenna subset or the antenna port subset, and obtains and feeds back the sensing-related channel state information.

[0228] In one embodiment, after the first node performs the first sensing measurement based on the first signal to obtain the first target information, the first node can transmit a second signal, which is used for the second sensing measurement. Specifically, the first node determines a first region of the first node through the first sensing measurement; the first node transmits a second signal, such as SRS or PRACH, on the antenna port in the first region, and the second node receives the second signal to determine the sensing-related channel information CSI (for example, according to the channel reciprocity, to determine the downlink beamforming vector in the spatial non-stationary scenario of the first node) in the spatial non-stationary scenario of the first node.

[0229] In the embodiments of the present application, the first node or the second node can perform the sensing operation through the visual region, can consider the spatial non-stationarity of the channel to perform the sensing operation, so as to improve the sensing accuracy and reduce the power consumption; or, can perform the sensing measurement operation through the visual region, can consider the spatial non-stationarity of the channel to perform the sensing measurement operation, so as to improve the measurement accuracy and reduce the power consumption.

[0230] Optionally, the first target information includes at least one of the following:

[0231] The first information is used to represent the shape of the first region;

[0232] The second information is used to represent the physical position of the unit constituting the first region;

[0233] The third information is used to represent the transformation relationship between the unit constituting the first region and the basic unit;

[0234] The fourth information is used to identify the first region;

[0235] The fifth information is the precoding information used by the second node for the second sensing measurement;

[0236] The sixth information is at least one of the sensing measurement value and the sensing performance evaluation index measurement value;

[0237] An association relationship between the fourth information and the fifth information;

[0238] An association relationship between the fourth information and the sixth information.

[0239] The first information can be used to describe the shape of the first region. The embodiment does not limit the specific form of the first information. It can be understood that the meaning of the first region can be a visible region of a certain scatterer or a corresponding propagation path, that is, a region in which the corresponding propagation path of the certain scatterer has stronger signal energy in the antenna array, for example, most of the energy of the path of the certain scatterer is contributed by the signal of the antenna port in the first region; or the first region can be a non-visible region of a certain scatterer or a corresponding propagation path, which is equivalent to a complementary region of the visible region.

[0240] The shape of the first region can be represented in the following ways: a bitmap-based representation (defining "1" to represent the first region and "0" to represent the outside of the first region, each bit of the bitmap can represent an antenna array element, an antenna port or an antenna subarray, and the granularity of the antenna array represented by the information bits is predefined by a protocol or configured by a network); or a direct description of a single pattern (assuming that the visible region is a rectangle, the horizontal length, the vertical length, the horizontal offset and the vertical offset of the reference point of the array are equivalent to the left upper corner of the antenna element); or a combination of multiple patterns (the combination of multiple pattern information constitutes the first region, and each pattern information includes the index of a basic unit / basic shape, the horizontal and vertical offsets of the basic unit, and the transformation / rotation / scaling parameters of the basic unit). It should be noted that the physical meaning of the first region can be a visible region or a non-visible region. The first region can be a visible region by default by a protocol, or the first region can be a visible region or a non-visible region by network configuration, or the first region can be a visible region or a non-visible region according to the first perception measurement result, and the first node selects to feed back the first region according to the visible region or the non-visible region, and feeds back the shape of the first region and the meaning of the first region at the same time.

[0241] Optionally, the first information includes a first index, and the first index is the index of one or more basic units associated with the first region.

[0242] The first region can be composed of target units, and the target units can be basic units, or the target units can have a transformation relationship with the basic units. In the case where the target units are basic units, the first index can be the index of the basic units; in the case where the target units have a transformation relationship with the basic units, the first index can be the index of the basic units having a transformation relationship with the target units.

[0243] In the embodiment, the first information comprises a first index, which is an index of a basic unit associated with the first region. The first index can be used to quickly determine the basic unit associated with the first region, so as to know which basic units constitute the first region.

[0244] In an embodiment, the first information can be a first parameter, which can be a first index or a combination of first indexes, or description information of a basic feature of the shape of the first region (for example, the length and width of a rectangle). The minimum description granularity of the shape of the first region can be an antenna element, an antenna port or an antenna subarray, for example, a subarray composed of a plurality of adjacent antenna elements or ports, and the division manner of the subarray can be configured by the base station or predefined by a protocol.

[0245] In an embodiment, the first index can be understood as an index of a basic unit, which can be used to describe a visible region on an antenna array of at least one of the second node and the first node for a channel or a channel multipath.

[0246] Optionally, the basic unit comprises at least one of the following:

[0247] (1) A first unit: a rectangular unit, which is used to describe a corresponding two-dimensional visible region on a two-dimensional antenna array. For example, “2x2” can be used to represent that a visible region of a channel or a channel multipath covers a subarray of a first signal transmitting array or receiving array, and the subarray is composed of two rows and two columns of antenna elements or two rows and two columns of subarrays. It can be understood that the corresponding subarray of the visible region further comprises a plurality of smaller subarrays. For another example, “NxM” can be used to represent that a visible region of a channel or a channel multipath covers a subarray of a first signal transmitting array or receiving array, and the subarray is composed of N rows and M columns of antenna elements or N rows and M columns of subarrays.

[0248] (2) A second unit: a linear unit, which is used to describe a corresponding one-dimensional visible region on a one-dimensional antenna array region. For example, “1x2” can be used to represent that a visible region of a channel or a channel multipath covers a subarray of a first signal transmitting array or receiving array, and the subarray is composed of one row and two columns of antenna elements or one row and two columns of subarrays. It can be understood that the linear region of the second unit can be regarded as a special case of the rectangular region of the first unit.

[0249] It should be noted that if an antenna port is connected to a group of physical antenna elements (hereinafter collectively referred to as subarrays), the visible region described by the basic unit is a region corresponding to a group of physical antenna elements or subarrays connected by the corresponding dimension antenna port.

[0250] Specifically, FIG. 4 shows several typical basic unit examples and corresponding first index value examples of the several typical basic units. It should be noted that the types of basic units are not limited to the several types listed in FIG. 4, and more different shapes of basic units can also be included. The first index is used by embodiments of the present application to establish an association relationship between a pre-defined or pre-configured basic unit and a first region, and the shape of the first region is indicated by sending first target information, for example, the first region is composed of one or more basic units corresponding to the first index.

[0251] The units constituting the first region can include basic units or units having a transformation relationship with the basic units. The units constituting the first region can be referred to as target units, which can be basic units corresponding to the first index, or units having a transformation relationship with the basic units corresponding to the first index, or the target units can be pre-defined or pre-configured by a protocol.

[0252] The second information is used to represent the physical location of the units constituting the first region. In an embodiment, the representation method of the physical location of the units constituting the first region can be based on a reference point and an offset to jointly represent the physical location of a basic unit: the reference point can be an arbitrarily specified physical location of an antenna array, or a physical antenna location, or an antenna port location (for example, a geometric center location of an antenna array panel, or a physical antenna location at the lower left corner of an antenna array, or a port location at the lower left corner of a port array corresponding to an antenna port); the offset can be represented by a geometric distance from the reference point, or a physical antenna spacing combined with a physical antenna index.

[0253] The physical location of the units constituting the first region can refer to a physical location on a panel of an antenna array, or a location in a port array corresponding to an antenna port.

[0254] Optionally, the second information includes a second index, which is used to indicate the physical location or logical location of an antenna port of a target unit in the second node antenna array, the target unit being a basic unit corresponding to the first index, or a unit having a transformation relationship with the basic unit corresponding to the first index, the target unit being used to constitute the first region.

[0255] In this embodiment, the second index is used to indicate the physical location or logical location of an antenna port of a target unit in the second node antenna array, so that the actual physical location of the target unit in the antenna array can be quickly determined by the second index, and thus the physical location information of the target unit constituting the first region can be obtained.

[0256] In an embodiment, the second information can be a second index. The second index can be understood as a position index of the basic unit (also can be expressed as a physical antenna or subarray reference point index) for indicating the physical position of the visual area corresponding to the first index in the first signal transmitting array (or receiving array). That is, the second index is used to indicate the correspondence between any pre-specified antenna port in the visual area corresponding to the basic unit and the actual physical antenna array (including the transmitting array, receiving array) physical antenna element or subarray. The subarray reference point can be any specified 1 physical antenna on the subarray.

[0257] It should be noted that the second index can be understood as a position index of the physical antenna element or subarray, which is bound one-to-one with the position of the physical antenna element or subarray. Knowing the second index, the physical antenna element or subarray corresponding to the basic unit and other first target information content associated therewith can be determined.

[0258] The second index is described below with a specific example: assuming that the transmitting array (the receiving array is the same) has a total of 32 physical antenna elements, which is a 4x8 planar array. As shown in FIG. 5, each square represents a physical antenna element (or a subarray), and the number sequence on it represents the physical antenna (or subarray) index. If the position of the top-left element of the visual area corresponding to the basic unit is used to represent the physical position of the basic unit (if it is a line unit, the physical position of the basic unit is represented by the position of the first element on the left), then the second index value of the “2x2” square unit (assuming that the first index value thereof is 4) is 1; the second index value of the “2x3” square unit (assuming that the first index value thereof is 7) is 12; the second index value of the “1x3” square unit (assuming that the first index value thereof is 8) is 30; since there is a one-to-one mapping relationship between the physical antenna (or subarray) index and the position coordinates of the physical antenna (or subarray), by indicating the first index {4, 7, 8} and the second index {1, 12, 30} of the basic unit corresponding thereto, the network side device or the terminal can obtain the specific physical position of the channel multipath or the visual area of the channel of the transmitting array (the receiving array is the same).

[0259] It can be understood that the shape and position of a first area can be determined by the first parameter and the second index, but it is not limited to determining the shape and position of a first area by the first parameter and the second index. Other ways can also be used to determine the first area: for example, a bitmap method can be used to describe the first area, and when the number of antennas or the number of antenna subarrays is relatively small, the bitmap method can be used to efficiently describe the first area.

[0260] The third information can be a third index, used to indicate a rotation state of the associated basic unit, or to indicate a horizontal flipping state or a vertical flipping state (flipping refers to flipping of a geometric figure of the basic unit) of the basic unit. Table 1 shows an example of optional third index values and their association with the rotation or flipping state of the basic unit.

[0261] Table 1

[0262] The fourth information can be an index, or bitmap information, or visible region description information, etc. The specific form of the fourth information is not limited in the present embodiment.

[0263] Optionally, the first target information includes the fourth information, and the fourth information includes one or more fourth indexes, each of the fourth indexes corresponding to a first region determined by at least one of the first information, the second information, the third information, and the fifth information.

[0264] In an embodiment, the first target information includes the fourth information, and the fourth information includes an index of one or more first regions.

[0265] The first target information further includes at least one of:

[0266] The first information corresponding to the index of each first region, respectively;

[0267] The second information corresponding to the index of each first region, respectively;

[0268] The third information corresponding to the index of each first region, respectively;

[0269] The fifth information corresponding to the index of each first region, respectively;

[0270] The sixth information corresponding to the index of each first region, respectively.

[0271] For different first regions, different first information, second information, third information, fifth information, or sixth information can be corresponded.

[0272] For example, the fourth information includes an index of a first region A and an index of a second region B, and the first target information further includes: first information, second information, third information, fifth information, or sixth information corresponding to the index of the first region A; first information, second information, third information, fifth information, or sixth information corresponding to the index of the first region B.

[0273] In one embodiment, the fourth information can include a fourth index. The fourth index can be understood as a visual area index, which is used to distinguish the visual area on the antenna array of at least one of the first node and the second node for a channel (including one component or a component group in the PMI) or a channel multipath. Different fourth index values correspond to different visual areas, i.e., the fourth index values of different visual areas are different.

[0274] It should be noted that the fourth index can be equivalent to the index of the first index set. It should be pointed out that if the spatially discontinuous one or more visual areas have the same corresponding fourth index value, it is considered that the one or more visual areas belong to the same visual area. In other words, the same visual area can be spatially discontinuous. For the same visual area, the channel parameters and channel multipath parameters corresponding to the channel are the same, or the corresponding precoding information is the same.

[0275] It should be noted that the fourth information can be identified or indicated by an implicit expression. For example, when the first target information contains multiple first area information, the first target information contains a combination of multiple first information, second information, third information at least one, and fifth information, sixth information, seventh information at least one. The seventh information is the precoding information used by the first node for sensing service or second sensing measurement.

[0276] In one embodiment, the first target information can be a structure, which arranges the above combination in a certain order to represent / indicate multiple different first areas. In this form, not only the first area is implicitly indicated, but also the association relationship (i.e., the eighth information) between the first area and the sensing-related channel information (i.e., the fifth information, the sixth information, and the seventh information at least one) is indicated.

[0277] Among them, the fifth information can be a vector, or a vector index and other information; for example, the fifth information includes: precoding vector index, precoding matrix index (PMI), or precoding vector combination coefficient index, etc. In one embodiment, the set of precoding vectors, i.e., the precoding codebook, is predefined by the protocol or pre-configured by the first node or the second node. The first node feeds back the fifth information of the second node, i.e., the precoding vector index, the precoding matrix index (PMI), the precoding vector combination coefficient index, etc., and the second node determines the precoding vector used for sensing service through the pre-defined precoding codebook; or the fifth information can include: precoding vector (meaning directly transmitting precoding weight) or precoding matrix (meaning directly transmitting precoding weight) and the like. In one embodiment, the fifth information can be a first vector, which is a precoding vector (or expressed as a beamforming vector) used by the second node to perform subsequent sensing or integrated sensing service.

[0278] The perception measurement measurement value can refer to a measurement value of the perception measurement (which can be briefly referred to as a perception measurement). The perception measurement is a measurement related to a perception service, and the related description of the perception measurement is given in the aforementioned explanation 1, which will not be repeated here.

[0279] The perception performance evaluation index measurement value can refer to a measurement value of the perception performance evaluation index (which can be briefly referred to as a perception performance evaluation index). The perception performance evaluation index is described in the aforementioned explanation 2, which will not be repeated here.

[0280] The association relationship between the fourth information and the fifth information can refer to an association relationship (or a mapping relationship) between the fourth index and at least one vector in the fifth message. The association relationship between the fourth information and the fifth information can also refer to an association relationship (or a mapping relationship) between the first vector and at least one fourth index.

[0281] The association relationship between the fourth information and the sixth information can include at least one of the following: an association relationship between the fourth information and at least one of the perception measurements, and an association relationship between the fourth information and at least one of the perception performance evaluation indexes.

[0282] For example, the association relationship between the fourth information and at least one of the perception measurements can refer to an association relationship (or a mapping relationship) between the fourth index and at least one of the perception measurements. The association relationship between the fourth information and at least one of the perception performance evaluation indexes can refer to an association relationship (or a mapping relationship) between the fourth index and at least one of the perception performance evaluation indexes.

[0283] The embodiments of the present application define a set of basic units for describing the shape of the visible area of the channel, and the first node determines at least one set of basic units for constituting the visible area of the perception channel after performing the perception measurement, and sends the related information of the basic units to at least one of the second node and the network side device. The related information of the basic units can include at least a basic unit index and an association relationship between the basic unit and the perception measurement.

[0284] In order to simply and clearly describe the embodiments of the present application, the path (Path) or cluster (Cluster) of a wireless channel, including sub-paths (Subpath) in the cluster, is collectively referred to as "multipath".

[0285] In addition, the wireless signal between the transmitter (or described as a transmitting node) and the receiver (or described as a receiving node) for channel estimation or sensing measurement can be referred to as a first signal, and the first signal includes reference signals such as synchronization signals and PBCH (Physical Broadcast Channel) 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., and can also be radar commonly used single frequency continuous wave (CW), frequency modulated CW (FMCW), and ultra-wideband Gaussian pulse, etc. In order to distinguish the use, the signal between the transmitter and the receiver for sensing can be referred to as a second signal, and the content of the second signal can be the same as that of the first signal.

[0286] In addition, the transmitter and the receiver can be a base station (BS) or a user equipment (UE, i.e., a terminal), etc. When one of the transmitter and the receiver is a BS and the other is a UE, the channel from the UE to the BS is referred to as an uplink channel, and the channel from the BS to the UE is referred to as a downlink channel. The embodiments of the present application are also applicable to the case where both the transmitter and the receiver are BSs or both are UEs, and therefore, for the sake of simplicity, the first signal sending end is referred to as a second node, and the first signal receiving end is referred to as a first node; the device in the core network, such as an access and mobility management function (AMF), a sensing function network element (SF), a communication application server in the core network, a sensing application server, etc., is referred to as a first device.

[0287] With the increase of the size of the antenna array of the communication device, the wireless channel presents spherical wave propagation and spatial non-stationary characteristics (or expressed as spatial non-stationarity). The spatial non-stationary characteristics affect the precoding or beamforming performance of the communication device, and reduce the transmission rate of the communication device. In addition to affecting the beamforming performance of the communication device, the spatial non-stationary characteristics also cause the communication device to fail to fully utilize the spatial diversity of the channel, resulting in energy waste. In addition, using a large-scale array for sensing, the spatial non-stationarity of the channel significantly affects the sensing accuracy. Embodiments of the present application propose a MIMO sensing method for a spatial non-stationary channel, which can improve the sensing performance by indicating the spatial non-stationary information of the channel of the sending end, and the reporting overhead of the visible area by the basic unit is small.

[0288] In the related art, the communication device uses a large-scale antenna array for sensing, and a higher angle resolution can be obtained due to the larger antenna aperture. However, the spatial non-stationarity of the large-scale antenna array channel significantly affects the sensing accuracy. Embodiments of the present application propose a sensing process for a spatial non-stationary channel, which estimates parameters by the receiving end, and indicates the spatial non-stationary information of the channel of at least one of the sending end and the receiving end, which can indicate the shape of the visible area at the level of the sensing measurement quantity and the association between the visible area and the sensing measurement quantity, improve the sensing accuracy, and reduce the sensing energy consumption.

[0289] In the embodiments of the present application, a first node performs a first sensing measurement on a first signal sent by a second node to obtain first target information; the first node sends the first target information to the second node; the first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node. In this way, the sending or receiving of signals is performed through the first area, so as to reduce the power consumption of the device.

[0290] Optionally, the first target information further includes at least one of the following:

[0291] Seventh information; second parameter configuration information; an association relationship between the first information and the second information; an association relationship between the first information and the third information; an association relationship between the first information and the fourth information; an association relationship between the first information and the sixth information; an association relationship between the first information and at least one fifth information; an association relationship between the first information and at least one seventh information; an association relationship between the fourth information and at least one seventh information; an association relationship between the first information and the parameter configuration information corresponding to the first sensing measurement; an association relationship between the fourth information and the parameter configuration information corresponding to the first sensing measurement; eighth information;

[0292] The seventh information is precoding information used by the first node for sensing service or second sensing measurement;

[0293] The second parameter configuration information is used for a sensing operation or a second sensing measurement.

[0294] The eighth information is used to represent an association relationship of the first area and channel information related to sensing.

[0295] The seventh information can be a vector or a vector index, etc. For example, the seventh information includes a precoding vector index, a precoding matrix index (PMI), a precoding vector combination coefficient index, etc. In an embodiment, a set of precoding vectors, i.e., a precoding codebook, is predefined by a protocol or preconfigured by the first node or the second node. The first node feeds back the seventh information of the second node, i.e., the precoding vector index, the precoding matrix index (PMI), the precoding vector combination coefficient index, etc., and the second node determines a precoding vector used by the first node for sensing service through the predefined precoding codebook. Alternatively, the seventh information can include a precoding vector (which refers to directly transmitting a precoding weight) or a precoding matrix (which refers to directly transmitting a precoding weight), etc. In an embodiment, the seventh information can be a second vector, which is a precoding vector (or an expression of a beamforming vector) used by the first node to perform subsequent sensing or integrated sensing service.

[0296] The second parameter configuration information is used for a second sensing measurement. The content of the second parameter configuration information is described in the aforementioned explanation 3, which will not be repeated here.

[0297] It should be noted that the first target information can further include at least one of the following: an association relationship between the second information and the third information; an association relationship between the second information and the fourth information; an association relationship between the second information and the sixth information; an association relationship between the second information and at least one fifth information; an association relationship between the second information and at least one seventh information; an association relationship between the second information and parameter configuration information corresponding to the first sensing measurement; an association relationship between the third information and the fourth information; an association relationship between the third information and the sixth information; an association relationship between the third information and at least one fifth information; an association relationship between the third information and at least one seventh information; an association relationship between the third information and parameter configuration information corresponding to the first sensing measurement; etc.

[0298] The association relationship between the first information and the second information can refer to an association relationship (or an expression of a mapping relationship) between a first index and a second index. The association relationship between the first index and the second index can be used to indicate a position of a basic unit corresponding to the first index.

[0299] The association relationship between the first information and the third information can refer to an association relationship (or a mapping relationship) between the first index and the third index. The association relationship between the first index and the third index can be used to indicate a rotation or flipping state of the basic unit corresponding to the first index.

[0300] The association relationship between the first information and the fourth information can refer to an association relationship (or a mapping relationship) between the first index and the fourth index. The association relationship between the first index and the fourth index can be used to indicate to which visual area the basic unit corresponding to the first index belongs.

[0301] The association relationship between the first information and at least one of the perception measurement quantities can refer to an association relationship (or a mapping relationship) between the first index and at least one of the perception measurement quantities.

[0302] The association relationship between the first information and at least one of the perception performance evaluation indexes can refer to an association relationship (or a mapping relationship) between the first index and at least one of the perception performance evaluation indexes.

[0303] The association relationship between the first information and the at least one fifth information can refer to an association relationship (or a mapping relationship) between the first index and the at least one first vector.

[0304] The association relationship between the first information and the at least one seventh information can refer to an association relationship (or a mapping relationship) between the first index and the at least one second vector.

[0305] The association relationship between the fourth information and the at least one seventh information can refer to an association relationship (or a mapping relationship) between the fourth index and the at least one second vector.

[0306] The association relationship between the first information and the parameter configuration information corresponding to the first perception measurement can refer to an association relationship (or a mapping relationship) between the first index and the parameter configuration information corresponding to the first perception measurement. The content of the parameter configuration information corresponding to the first perception measurement is described in the foregoing explanation 3, and will not be described here. The association relationship between the first index and the parameter configuration information corresponding to the first perception measurement can include an association relationship between the first index and at least one resource or resource set used for the first measurement. The resource or resource set includes a time domain resource or resource set, a frequency domain resource or resource set, and a time-frequency resource or resource set.

[0307] The association relationship between the fourth index and the parameter configuration information corresponding to the first perception measurement (or expressed as a mapping relationship) can include an association relationship between the fourth index and at least one resource or resource set used for the first perception measurement; the resource or resource set includes a time domain resource or resource set, a frequency domain resource or resource set, and a time-frequency resource or resource set.

[0308] Specifically, the association relationship (or expressed as a mapping relationship) between at least one of the first index and the fourth index and at least one of the perception measurement quantity and the perception performance evaluation index can be embodied in the form of a mapping table. Taking the association relationship between the first index and part of the content of the perception measurement quantity as an example, Table 2 gives a mapping representation example. It should be noted that in actual information transmission, the above mapping relationship can be represented by multiple mapping tables, and each mapping table can be a sub-table of Table 2.

[0309] Table 2

[0310] In the formula, Complex Amplitude represents complex amplitude. Delay represents delay.

[0311] Specifically, the first target information can include one or more of the first vector (or first vector index), the second vector (or second vector index), or the number of channel estimation matrices. The association relationship between at least one of the first index and the fourth index and the first vector can be embodied in the form of a mapping table. Taking the association relationship (or expressed as a mapping relationship) between the fourth index and the first vector as an example, Table 3 gives a mapping representation example.

[0312] Table 3

[0313] Specifically, the association relationship between the first index and at least one of the second index and the third index can be embodied in the form of a mapping table. One first index can be associated with multiple second indexes, and one second index can also be associated with multiple first indexes; similarly, one first index can be associated with multiple third indexes, and one third index can also be associated with multiple first indexes. Table 4 gives an example of the mapping relationship between the first index and the second index and the third index.

[0314] Table 4

[0315] Specifically, the mapping relationship between at least one of the first index and the fourth index and the first measurement resource or resource set can be embodied in the form of a mapping table. Taking the mapping relationship between the fourth index and the first measurement resource or resource set as an example, Table 5 gives a mapping example.

[0316] Table 5

[0317] It should be noted that in actual information transmission, multiple mapping tables can be transmitted by using the above examples (Tables 3-6), or an integrated mapping table can be transmitted, which contains all the mapping relationship information described above.

[0318] The eighth information can indicate the combination of the first area or the area set of the first area and the perception-related channel information. For example, the eighth information can indicate a PMI vector set and the first area or the area set of the first area, and the association of each area in the first area or the area set with a specified PMI vector or a vector subset in the PMI vector set, or a combination of the association; for another example, a cluster parameter set and the first area or the area set of the first area, and the association of each area in the first area or the area set with a specified cluster or a cluster subset in the cluster parameter set, or a combination of the association.

[0319] It should be noted that the eighth information can implicitly express the association of the first area and the perception-related channel information. For example, when the first target information contains multiple first area information, the first target information contains a combination of multiple first information, second information, third information, and at least one of the fifth information, the sixth information, and the seventh information. In one embodiment, the first target information can be a structure, which arranges the above combinations in a certain order to represent / indicate multiple different first areas. In this form, not only the first area is implicitly indicated, but also the association of the first area and the perception-related channel information (i.e., at least one of the fifth information, the sixth information, and the seventh information) is implicitly indicated.

[0320] In this embodiment, through the above first target information, the first node and the second node can obtain the visible area of the channel on the antenna array of at least one of the second node and the first node, and further can perform a perception operation or a second perception measurement through the relevant information of the visible area of the channel on the antenna array of at least one of the second node and the first node.

[0321] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0322] The number of basic units can be one or more. The basic unit can be a basic pattern set determined according to the antenna port configuration of the base station, the number of horizontal and vertical ports (N1, N2 parameters). For example, a table defined in advance, or a scaling factor of N1, N2.

[0323] Optionally, the basic unit includes at least one of the following:

[0324] A two-dimensional visual area for characterizing a two-dimensional antenna array region;

[0325] A one-dimensional visual area for characterizing a one-dimensional antenna array region.

[0326] Optionally, before the first node performs the first sensing measurement on the first signal sent by the second node, the method further includes:

[0327] The first node receives second target information sent by the second node, and the second target information includes at least one of the following:

[0328] Position information of at least one of the second node and the first node;

[0329] First parameter configuration information of at least one of the second node and the first node for the first sensing measurement;

[0330] Target parameter configuration information, the target parameter configuration information is used to obtain at least one of the fifth information and the sixth information.

[0331] Wherein, the second node can send the position information of at least one of the second node and the first node to the first node, which helps to reduce the complexity of channel parameter estimation when the first node performs signal processing in the process of performing the first sensing measurement. The position information of the first node can be determined through the NR positioning process, and the core network device obtains the position information of the first node and sends it to the first node through the second node, such as the base station, or determines the position information of the first node through the wireless sensing of the second node to the first node.

[0332] Wherein, the first parameter configuration information of at least one of the first node and the second node for the first sensing measurement can refer to the parameter configuration information of at least one of the second node and the first node for the first sensing measurement. The parameter configuration information is described in the foregoing explanation 3, which is not repeated here. The parameter configuration information for the first sensing measurement can include antenna array configuration information for the first sensing measurement.

[0333] The target parameter configuration information can be target parameter configuration information of the first node, and can be signal processing method and corresponding parameter configuration information used by the first node to obtain at least one of the sensing measurement quantity, the sensing performance evaluation index, the first vector, and the second vector.

[0334] In this embodiment, the first node receives the second target information sent by the second node, and can perform the first sensing measurement based on the second target information (such as location information, the first parameter configuration information, and the target parameter configuration information), so that the second node can configure the first node to perform the first sensing measurement through the second target information.

[0335] Optionally, the first parameter configuration information includes at least one of the following:

[0336] configuration information of the first signal;

[0337] configuration information of an antenna array or an antenna port used for the first sensing measurement;

[0338] a number of the first areas or a first threshold value;

[0339] accuracy of the first areas or a second threshold value;

[0340] The first threshold value is a threshold value of the number of the first areas, and the second threshold value is a threshold value of the accuracy of the first areas.

[0341] The configuration information of the first signal can include at least time-frequency resource configuration or sequence generation parameters of the first signal.

[0342] The configuration information of the antenna array or the antenna port used for the first sensing measurement can include at least one of the following:

[0343] Antenna port topology (i.e. topology information on physical space of physical subarray pre-set reference point or physical antenna element connected by antenna port), antenna port index, antenna port number, association between antenna port and physical antenna element or physical subarray, physical subarray index, physical subarray number, number of physical antenna elements inside physical subarray, physical antenna element spacing inside physical subarray (including at least one of horizontal element spacing and vertical element spacing), physical antenna element index inside physical subarray (e.g. including physical subarray edge, end, central, etc. specified location index, or all physical antenna element indexes inside physical subarray), physical subarray array pattern information (e.g. indicating at least one of linear array, rectangular surface array, circular array, cylindrical array, etc.), physical antenna array (or panel) orientation, physical antenna array aperture (including physical subarray aperture or entire physical antenna array aperture), physical antenna polarization characteristics, physical antenna element gain (including antenna gain in different directions, i.e. 2D / 3D antenna pattern).

[0344] It should be noted that the physical antenna element index inside the physical subarray can be an absolute index, i.e. different physical antenna elements of different physical subarrays have unique indexes; or a relative index, i.e. different physical antenna elements of different physical subarrays use unique indexes, and different physical antenna elements inside the same physical subarray have unique indexes, but the index values of different physical antenna elements inside different subarrays can be the same, i.e. the same set of index values is used for physical antenna elements inside different subarrays.

[0345] For example, assuming there are 2 physical subarrays, each containing 4 physical antenna elements. If an absolute index is used, the physical antenna indexes in the first physical subarray are 0, 1, 2, 3, and the physical antenna indexes in the second physical subarray are 4, 5, 6, 7; if a relative index is used, the first physical subarray index is 0, and the second physical subarray index is 1, and the physical antenna indexes in each physical subarray are all 0, 1, 2, 3. The physical antenna is uniquely determined by the physical subarray index combined with the physical antenna index.

[0346] In an implementation, the first target information contains a first number of regions, which does not exceed a first threshold value. For example, for PMI feedback, the first number of regions does not exceed the number of PMI feedback codewords; or, by default, the first number of regions or the first threshold value that the first node can feed back is determined according to a protocol predefinition. For example, if the second node indicates that first region measurement needs to be performed, the first node defaults the first number of regions to 1.

[0347] The accuracy of the first region can refer to the requirement for the number of antennas or the number of antenna ports corresponding to the first region.

[0348] In an implementation, the first region corresponds to an antenna number or a port number not exceeding a second threshold value or greater than the second threshold value.

[0349] The number of the first regions or the first threshold value, or the accuracy of the first regions or the second threshold value can be used by the first node to indicate the accuracy requirement of the visible region. The accuracy requirement can be the limiting information of the defined first index set, for example, limiting the first index set indicated by the first node.

[0350] For example, the second node can directly indicate the first index set available to the first node. For example, in Table 1, it is indicated that the first node can only use the first index subset {1, 2, 4} for visible region description; or, the accuracy of the visible region description can be classified, for example, into 1, 2, …, M levels, where M is an integer greater than 1, each level corresponds to a first index subset, and the second node directly indicates the accuracy level used by the first node.

[0351] For example, the first threshold value can be the maximum number of the first regions of the feedback, and the second node indicates the first threshold value X (X is an integer greater than or equal to 0) of the first node, and the number of the first regions of the feedback of the first node is not greater than X; which first regions are selected by the first node for information feedback is determined by the algorithm on the first node side.

[0352] The first threshold value can also be the power value (or delay value, angle value, etc.) of the strongest path / cluster corresponding to the first region, and the first node feeds back the first region whose strongest path / cluster power is greater than the first threshold (or the first region whose delay / angle is greater than / less than the threshold).

[0353] For example, the second threshold value can be the limiting information of the first index set; the second threshold value can also be the minimum granularity value of at least one dimension of the basic unit; when the first node feeds back the first index, it can only feed back the first index value corresponding to the basic unit satisfying the minimum granularity.

[0354] In this implementation, the first parameter configuration information includes antenna array configuration information for the first perception measurement, so that the antenna array configuration of the first node receiving the first signal can be determined through the antenna array configuration information, or the first node is informed of the antenna array configuration of the second node transmitting the first signal.

[0355] Optionally, the target parameter configuration information includes at least one of the following:

[0356] indication information for indicating a parameter estimation algorithm;

[0357] decision information of the first region;

[0358] a type of the perception measurement quantity;

[0359] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the fifth information and the sixth information.

[0360] The indication information for indicating the parameter estimation algorithm can include at least one of the following:

[0361] indication information for indicating a type of the parameter estimation algorithm;

[0362] dimension type or dimension size information of input data of the parameter estimation algorithm;

[0363] calculation window information of the parameter estimation algorithm;

[0364] threshold information of the parameter estimation algorithm;

[0365] search step or search interval information of the parameter estimation algorithm.

[0366] The indication information for indicating the type of the parameter estimation algorithm can be a type of the parameter estimation algorithm or an index of the type of the parameter estimation algorithm. The type of the parameter estimation algorithm includes a Fast Fourier Transform (FFT)-based type, a Beamformer type, a Subspace-based type, an Expectation Maximization (EM)-based type, a Compressive Sensing (CS)-based type, or the like. An index value set corresponding to the types of the parameter estimation algorithm can be defined, and only the index of the type of the parameter estimation algorithm needs to be transmitted when the second target information is actually transmitted.

[0367] The dimension type or dimension size information of the input data of the parameter estimation algorithm can be matrix dimension or size information of the input data of the parameter estimation. That is, the dimension number or size of a channel estimation matrix (or a channel state information matrix, or a channel transmission function matrix) used for one time of parameter estimation, or a covariance matrix or a correlation matrix of the channel estimation matrix. The dimension size of the input data matrix required for different parameters to be estimated can be different, and therefore the information is associated with at least one of a sensing measurement, a sensing performance evaluation index, and the first vector.

[0368] For example, when a time delay and a Doppler in the sensing measurement are estimated, the dimension of the input data matrix can be “1×1×f num ”, where f num is the number of frequency points (the number of frequency domain resources) of channel estimation, and “1×1×f numThe first dimension in the "1 x 1" is a receiving array dimension, and the number "1" indicates that the number of receiving antennas is 1. Similarly, the second dimension is a transmitting array dimension, and the number "1" indicates that the number of transmitting antennas is 1, that is, the path loss is calculated by a channel estimation vector of one Single Input Single Output (SISO) subchannel between the second node and the first node; for example, the angle in the estimated perception measurement quantity, the input data dimension can be "4 x 16 x f num ", in which the number "4" indicates that the number of receiving antennas is 4, and the number "16" indicates that the number of transmitting antennas is 16, that is, the multi-path departure azimuth is calculated by a channel estimation matrix of one MIMO subchannel between the second node and the first node, which is composed of 16 transmitting antennas and 4 receiving antennas.

[0369] The calculation window information of the parameter estimation algorithm can include at least one of the following: a calculation window size of a transmitting array on the second node side in single parameter estimation, a calculation window size of a receiving array on the first node side in single parameter estimation, a calculation window interval of the transmitting array on the second node side in continuous multiple parameter estimation, a calculation window interval of the receiving array on the first node side in continuous multiple parameter estimation, a calculation window starting position of the transmitting array on the second node side in continuous multiple parameter estimation, and a calculation window starting position of the receiving array on the first node side in continuous multiple parameter estimation.

[0370] When the array is a two-dimensional array, the calculation window size includes a horizontal direction size and a vertical direction size, the calculation window interval includes a horizontal direction interval and a vertical direction interval, and the calculation window starting position includes a horizontal direction starting position and a vertical direction starting position.

[0371] Still taking the above example of estimating the angle of the perception measurement quantity as an example, the input data dimension is "4 x 16 x f num ", and the number "16" indicates that the number of transmitting antennas is 16. The calculation window size of the transmitting array on the second node side can be "1 x 16", in which the number "1" corresponds to the number of vertical direction antennas of the transmitting array being 1, and the number "16" corresponds to the number of horizontal direction antennas of the transmitting array being 16, that is, the subarray corresponding to the calculation window is a linear array with 1 row and 16 columns. The calculation window size of the transmitting array on the second node side can also be "4 x 4", that is, the subarray corresponding to the calculation window is a surface array with 4 rows and 4 columns. In this example, the calculation window of the receiving array on the first node side can be "1 x 4" or "2 x 2";

[0372] Further, assuming that the second node transmitting array is a 1-row 256-column linear array, when the first node performs continuous multiple times of parameter estimation, if the pth calculation window corresponds to physical antenna indexes n~n+15, and the most adjacent (p+1)th calculation window corresponds to physical antenna indexes n+m~n+m+15, then the calculation window interval is m; assuming that the second node transmitting array is a 16-row 16-column linear array, and the pth calculation window corresponds to physical antenna horizontal direction indexes n1~n1+4 and vertical direction indexes n2~n2+4, and the most adjacent (p+1)th calculation window corresponds to physical antenna horizontal direction indexes n1+m1~n1+m1+4 and vertical direction indexes n2+m2~n2+m2+4, then the calculation window horizontal direction interval is m1, and the vertical direction interval is m2.

[0373] The threshold information of the parameter estimation algorithm can be parameter estimation threshold information, i.e., various possible threshold values used by the parameter estimation algorithm, including iteration end decision threshold values, outlier decision threshold values, decision threshold values used for associating the same estimation target data in continuous multiple times of parameter estimation, and the like.

[0374] The search step or search interval information of the parameter estimation algorithm can be a minimum search interval when searching for a spectrum peak by the parameter estimation algorithm, and start position information of a search interval.

[0375] The decision information of the first area can be visual area decision information, which can be used to judge and divide a visual area, and can be a perception measurement quantity or a perception performance evaluation index. For example, the visual area decision information can indicate which perception measurement quantity or perception performance evaluation index is used to divide a visual area, and a corresponding decision threshold value. It should be noted that the visual areas corresponding to different perception measurement quantities or perception performance evaluation indexes can be different.

[0376] In this embodiment, through the target parameter configuration information, the second node can configure the first node to obtain a signal processing related parameter of at least one of a perception measurement quantity, a perception performance evaluation index, a first vector and a second vector by performing first perception measurement, so that the first node can obtain at least one of the perception measurement quantity, the perception performance evaluation index, the first vector and the second vector according to the configuration of the second node.

[0377] Optionally, before the first node performs first perception measurement on the first signal sent by the second node, the method further includes:

[0378] The first node sends third target information to the second node, and the third target information includes at least one of the following:

[0379] Position information of the first node;

[0380] physical antenna array information of the first node;

[0381] state information of the first node;

[0382] communication capability information of the first node;

[0383] sensing capability information of the first node;

[0384] resource information available for communication or sensing of the first node;

[0385] computing capability information of the first node.

[0386] The physical antenna array information of the first node can include at least one of the following: antenna panel orientation, array type, number of antennas (including horizontal and vertical directions), array aperture, antenna polarization characteristics, array element gain and directivity characteristics.

[0387] The state information of the first node can include information such as moving speed, moving direction, time period of keeping still or moving, etc.

[0388] The communication capability information of the first node can include first node communication coverage, maximum bandwidth available for communication service or maximum number of antenna ports available for communication service, etc.

[0389] The sensing capability information of the first node can include first node sensing coverage, maximum bandwidth available for sensing service, maximum sustainable time of sensing service or sensing signal types and frame formats that can be supported, etc.

[0390] The resource information available for communication or sensing of the first node can refer to resource information currently available for communication or sensing of the first node, and can include time resources (such as the number of symbols, slots or frames, etc.), frequency resources (such as the number of resource blocks (RBs), the number of resource elements (REs), the total bandwidth or the location of available frequency bands), antenna resources (such as the number of antennas or antenna subarrays) or orthogonal code resources (such as orthogonal code length and quantity), etc.

[0391] The computing capability information of the first node, i.e., the highest configuration of the supported third parameter configuration information, can include at least one of the following: a supported parameter estimation algorithm type or parameter estimation algorithm type index, a maximum dimension of a supported parameter estimation input data matrix, a maximum size of at least one dimension of a supported parameter estimation input data matrix, a supported computation window maximum dimension, a maximum size of at least one dimension of a computation window, a computation window minimum interval (including a computation window minimum interval in a horizontal direction and a vertical direction), a computation window maximum starting range (including a computation window maximum starting range in a horizontal direction and a vertical direction), a supported maximum number of continuous multiple parameter estimations, a supported minimum search step, and a supported maximum search interval.

[0392] In an implementation, the first node sends third target information to the second node, and the second node can send second target information to the first node based on the third target information; the first node receives the second target information sent by the second node and can perform first sensing measurement based on the second target information.

[0393] In this implementation, the first node sends third target information to the second node, so that the second node can configure the first sensing measurement of the first node based on the third target information. The second node can configure the first sensing measurement of the first node by considering the location information, physical antenna array information, state information, or capability information of the first node, thereby improving the measurement accuracy of the first sensing measurement.

[0394] Optionally, after the first node performs the first sensing measurement on the first signal sent by the second node, the method further includes at least one of the following:

[0395] The first node performs a sensing operation based on the first target information;

[0396] The first node obtains second parameter configuration information in the first target information, sends a second signal based on the second parameter configuration information (for example, determines information of the second signal based on the second parameter configuration information, and sends the second signal based on the information of the second signal), and the second signal is used for the second sensing measurement;

[0397] The first node determines third parameter configuration information based on the first target information, sends the third parameter configuration information to the second node, and sends a second signal based on the third parameter configuration information (for example, determines information of the second signal based on the third parameter configuration information, and sends the second signal based on the information of the second signal), and the second signal is used for the second sensing measurement;

[0398] The first node receives the third signal based on second parameter configuration information in the first target information (for example, determines third signal information based on the second parameter configuration information, and receives the third signal based on the third signal information), and performs the second sensing measurement;

[0399] The first node receives third parameter configuration information sent by the second node, receives the third signal based on the third parameter configuration information, and performs the second sensing measurement.

[0400] The second parameter configuration information can include second signal information, and the second signal information can include time-frequency resources and antenna ports of the second signal; or the second parameter configuration information can include third signal information, and the third signal information can include time-frequency resources and antenna ports of the third signal.

[0401] In addition, the third parameter configuration information can include second signal information, and the second signal information can include time-frequency resources and antenna ports of the second signal; or the third parameter configuration information can include third signal information, and the third signal information can include time-frequency resources and antenna ports of the third signal.

[0402] In this embodiment, the first node performs a sensing operation based on the first target information, and the first node can receive signals through a visible area during the sensing operation, so as to reduce power consumption of the first node; further, the sensing operation through the visible area can consider spatial non-stationarity of a channel to perform the sensing operation, so as to improve sensing accuracy.

[0403] In this embodiment, the first node obtains second parameter configuration information in the first target information, determines second signal information based on the second parameter configuration information, and sends the second signal based on the second signal information; or the first node receives third parameter configuration information sent by the second node, determines second signal information based on the third parameter configuration information, and sends the second signal based on the second signal information. In this way, the first node can send signals through a visible area during a measurement operation, so as to reduce power consumption of the first node; further, the measurement operation through the visible area can consider spatial non-stationarity of a channel to perform the measurement operation, so as to improve measurement accuracy.

[0404] Optionally, the first node performs a sensing operation based on the first target information, and the sensing operation includes at least one of the following:

[0405] The first node receives a fourth signal sent by the second node based on fifth information or first precoding information, and the fifth information or the first precoding information is determined based on the first target information.

[0406] The first node acquires seventh information in the first target information, receives a fourth signal based on the seventh information; or, the first node determines second precoding information based on the first target information, receives the fourth signal based on the second precoding information.

[0407] The fourth signal is a signal related to sensing.

[0408] The precoding information (for example, the first precoding information and the second precoding information) can include a precoding vector index, a precoding matrix index (PMI), a precoding vector combination coefficient index, a precoding vector (directly transmitting a precoding weight), or a precoding matrix (directly transmitting a precoding weight), and the like.

[0409] In this embodiment, the first node can receive signals through the precoding information corresponding to the visual area during the sensing operation, which can reduce the power consumption of the first node. Further, the sensing operation through the visual area can consider the spatial non-stationarity of the channel to perform the sensing operation, thereby improving the sensing accuracy.

[0410] In one embodiment, the information sending method in the embodiment of the present application includes the following processes:

[0411] Step (1): The second node sends a first signal, and the first node receives the first signal and performs a first sensing measurement (or described as a first measurement). The first node obtains first target information based on the first sensing measurement. The first target information is described above and will not be repeated here.

[0412] In one embodiment, the second node sends second target information to the first node. The second target information is described above and will not be repeated here.

[0413] Optionally, before performing the first sensing measurement, the first node sends third target information to the second node.

[0414] The third target information is described above and will not be repeated here.

[0415] Step (2): The first node feeds back the first target information to the second node.

[0416] The first target information can include the first region or a region set of the first region and a combination of channel information. For example, the first target information can include a PMI vector set and the first region or a region set of the first region, and an association between each region in the first region or the region set and a specified PMI vector or a vector subset in the PMI vector set, or a combination of the associations; for another example, a cluster parameter set and the first region or a region set of the first region, and an association between each region in the first region or the region set and a specified cluster or a cluster subset in the cluster parameter set, or a combination of the associations.

[0417] Optionally, at least one of the contents included in the perception measurement quantity and the perception performance evaluation index in the first target information can be quantized based on a pre-agreed quantization rule, and the first node can only need to indicate an index corresponding to a quantized value.

[0418] Step (3): The second node or the first node performs a target operation. The target operation includes at least one of the following:

[0419] (1) The second node performs perception using the received first vector (i.e., the fifth information in the first target information).

[0420] (2) The second node calculates a third vector based on at least one of the contents in the received first target information, and performs perception using the third vector. For example, the second node transmits a second signal using the third vector, and the first node receives the second signal, where the third vector is precoding information for transmitting the second signal.

[0421] (3) The first node performs perception using the second vector (i.e., the seventh information in the first target information). For example, the second node transmits a second signal, and the first node receives the second signal using the second vector, where the second vector is precoding information for receiving the second signal.

[0422] (4) The first node calculates a fourth vector based on at least one of the contents in the first target information, and performs perception using the fourth vector. For example, the second node transmits a second signal, and the first node receives the second signal using the fourth vector, where the fourth vector is precoding information for receiving the second signal.

[0423] (5) The second node and the first node determine a third signal based on the second parameter configuration information, including time-frequency resources and antenna ports of the third signal. The first node transmits the third signal, and the second node receives the third signal and performs a second perception measurement (or referred to as a second measurement).

[0424] (6) The second node determines, based on at least one content in the received first target information, third parameter configuration information (see the description of the parameter configuration information in the aforementioned explanation 3) for the sensing operation or the second sensing measurement. The second node sends the third parameter configuration information to the first node. The second node and the first node determine, based on the third parameter configuration information, a third signal, including time-frequency resources and antenna ports of the third signal. The first node sends the third signal, and the second node receives the third signal and performs the second sensing measurement.

[0425] Step (4): Optionally, the first node sends the sensing result to a sensing core network device, such as a sensing function network element (SF), an access and mobility management function (AMF), a sensing application server in the core network, etc.

[0426] The following is further illustrated by several examples:

[0427] Example Group One:

[0428] This example group implements a large-scale MIMO sensing antenna selection method.

[0429] The embodiments of the present application can realize the selection of at least one of the antenna ports of the transmitting end and the receiving end in MIMO sensing, so as to reduce the sensing energy consumption and improve the MIMO sensing accuracy. Before performing the sensing service, the second node and the first node first perform the first sensing measurement to determine the visible area of at least one of the second node and the first node, so as to perform the sensing antenna selection of at least one of the second node and the first node. The sensing process mentioned in the examples can be roughly divided into two stages, the first sensing measurement and the second sensing measurement: the first sensing measurement transmits the omnidirectional beam signal to detect the multipath information and the potential sensing target in the wireless environment, and obtains the rough information of the potential sensing target, which can be understood as rough sensing measurement; the second sensing measurement determines the configuration parameters of the second sensing measurement signal based on the rough result of the first sensing measurement, and the second sensing measurement can be understood as fine sensing measurement, for example, under the premise of knowing the rough characteristics (such as AOD, AOA, Doppler information, spatial non-stationary characteristics, etc.) of the sensing target, configuring the parameters (such as sending / receiving beam, sending signal port / port set, symbol interval and / or frequency domain density of the reference signal, etc.) of the second sensing measurement signal, so as to ensure that the second sensing measurement can obtain more accurate sensing measurement results and / or accurate tracking of the sensing target.

[0430] Example 1:

[0431] Taking the second node as the BS and the first node as the UE as an example, the information sending method of the embodiment of the application includes the following steps:

[0432] Step (1): the BS sends a first signal, the UE receives the first signal, and performs first perception measurement. The UE obtains first target information based on the first perception measurement, at least including: the first information, the second information, the fourth information, at least one of the perception measurement quantity and the perception performance evaluation index, and the association relationship between at least one of the perception measurement quantity and the perception performance evaluation index and the fourth information.

[0433] The first signal can be a CSI-RS. The BS can configure a plurality of CSI-RS resources (resources) or CSI-RS-resource sets (ResourceSet), corresponding to a set of time-frequency resources of the CSI-RS for first perception measurement. The same or different CSI-RS resource or CSI-RS-resource set can be mapped to different transmit antenna ports of the BS. In multi-port mapping, a plurality of CSI-RS ports can be distinguished and mapped through code division multiplexing (CDM) on the same time-frequency resource. The CDM type of the CSI-RS is configured through the RRC parameter cdm-Type. In the information element CSI-RS-ResourceMapping, the number of ports of the CSI-RS is configured through the parameter nrofPorts, which can take values {p1, p2, p4, p8, p12, p16, p24, p32}, that is, corresponding to 1, 2, 4, 8, 12, 24, 32 port numbers. The group size of CDM takes values L∈{1,2,4,8}, when the number of ports nrofPorts (assuming the value is N) is greater than the group size of the used CDM, N / L CDM groups are needed to realize the resource mapping of the multi-port. The port number p mapping relationship specified by NR is p=3000+s+jL,j=0,1,K,N / L-1;s=0,1,K,L-1, where j is the index of the CDM group, and s is the orthogonal code division sequence index of different ports.

[0434] The BS sends second target information to the UE, at least including: antenna array configuration information of the BS for first perception measurement, position information of at least one of the BS and the UE, and physical antenna array information of the BS. It can be understood that the second target information also includes related configuration information of the first signal, for example, port number combination of the first signal, time-frequency resource, time-frequency mapping parameters of the preamble sequence, mapping relationship between the first signal port and the antenna, etc., and other part parameters can be predefined by the protocol.

[0435] For example, the second target information further comprises at least one of the following: values of all antenna port indexes p used for transmitting the CSI-RS (i.e. a set of different antenna port indexes P = {3001, 3002,...}), an association between an ID of a CSI-RS resource or a CSI-RS-ResourceSet and an antenna port p, an association between an ID of a CSI-RS resource or a CSI-RS-ResourceSet and a BS antenna array physical antenna / subarray index, and an association between an antenna port index p and a BS antenna array physical antenna / subarray index.

[0436] The BS sends the second target information to the UE, which can be carried in a physical broadcast channel (PBCH) or a system information block (SIB) in a broadcast or multicast manner, or carried in a radio resource control (RRC) or downlink control information (DCI) in a unicast manner, or a combination of the above, i.e., using a broadcast message to indicate part of the common information and using a unicast message to indicate another part of the user-specified information.

[0437] Optionally, at least one of the second target information can be sent by the first device to the UE, including that the first device sends at least one of the second target information to the BS, and the BS forwards it to the UE.

[0438] Step (2): The UE feeds back the first target information to the BS. Based on the first target information, the BS and the UE can determine the antenna port indexes used for subsequent sensing services or second sensing measurements. Specifically, the BS can determine a set of antenna port indexes P' in the first region based on at least one of the first information, the second information, the fourth information, the sensing measurement quantity, the sensing performance evaluation index, and an association between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information, P' being a subset of all antenna port indexes P used for transmitting the CSI-RS. In one embodiment, the BS first determines a set of antenna array physical antenna / subarray indexes corresponding to the first region on the BS side based on the above-mentioned first target information content, and then determines the set of antenna port indexes P' based on the association between the antenna port index p and the BS antenna array physical antenna / subarray index. If there are multiple first regions, the BS can determine a set of antenna port indexes P'1, P'2, P'3,..., P' L corresponding to L (L > 1) first regions. L .

[0439] If the second sensing measurement is to be performed, the first target information can include second parameter configuration information, which includes at least one of antenna port index of the BS and the UE for the second sensing measurement; at this time, the BS and the UE can determine the antenna port index for the second sensing measurement according to at least one of the second parameter configuration information and the first target information; it can be understood that the second parameter configuration information in the first target information includes one or more first areas and corresponding measurement results, which represent the results of rough sensing measurement of one or more sensing targets (for example, the rough granularity sensing measurement result of the sensing target, the spatial non-stationary characteristics of the transmission path corresponding to the sensing target, i.e., the first area).

[0440] Specifically, the UE can directly determine the antenna port index set P' in the first area range of the BS side according to the first target information and the second target information. The second parameter configuration information fed back by the UE to the BS can include the antenna port index set P' for subsequent second sensing measurement.

[0441] An implementation can also be that the BS directly determines the CSI-RS resource or CSI-RS-ResourceSet (including their IDs) associated with the first area of the BS side according to the first target information and the second target information.

[0442] Alternatively, the BS determines the second parameter configuration information based on the first target information and sends it to the UE, which includes at least one of the antenna port index of the BS and the UE for the second sensing measurement; the BS and the UE determine the antenna port index for the second sensing measurement according to at least one of the second parameter configuration information and the first target information. An implementation can be that the second parameter configuration information includes the CSI-RS resource or CSI-RS-ResourceSet (including their IDs) for the second sensing measurement, which can be a subset of the CSI-RS resource or CSI-RS-ResourceSet for the first sensing measurement, or a CSI-RS resource reconfigured based on the first target information, and has a corresponding relationship with the transmission antenna port corresponding to the first area of the BS side.

[0443] Step (3): the BS and the UE perform sensing or second sensing measurement.

[0444] The network-side device configures the related parameters of the second signal of the second sensing measurement. The second signal can be a CSI-RS signal, and different ports in the CSI-RS resource correspond to different antennas participating in the transmission of the second signal. The configuration method of the second signal: the configuration parameters of the first signal can be reused, the association relationship between the antenna port of the first signal and the reference signal can be reused, the time-frequency configuration parameters, etc. (for example, when the first signal is a periodic signal, the network device indicates that one set of antenna ports in the first signal is used for the second sensing measurement, and the indication manner can be bitmap information, or a first region in the first target information, or in the form of the index of a basic unit); or, a new set of signal ports is configured, and the mapping relationship between the new set of signal ports and the first signal port is indicated (for example, the network device indicates that one set of antenna ports in the first signal in the first signal is used for the second sensing measurement, and the indication manner can be bitmap information, or a first region in the first target information, or in the form of the index of a basic unit; according to a pre-defined rule, the set of antenna ports of the first signal is mapped to the set of ports of the second signal, for example, the mapping of the first signal antenna port to the second signal antenna port is realized in ascending order or descending order of port number); or, a new set of ports is configured, and the antenna configuration of the second signal antenna port is indicated (for example, the horizontal and vertical antenna numbers of the antenna array of the second signal are indicated). It can be understood that the set of antenna ports of the second signal configured by the network-side device can be different from the first region obtained by the first signal measurement: for example, the first region / visible region of the two sensing targets overlaps, in order to avoid mutual interference, the antenna ports in the overlapping region can not be used; for another example, the shape of the first region / visible region of the sensing target is irregular, and the network-side device can configure a regular-shaped antenna region (a rectangular region) to contain the irregular-shaped first region, thereby reducing the complexity of the signal processing at the receiving end.

[0445] The related parameters of the second signal can also include receiving vector information at the receiving side. The receiving vector at the receiving side can be determined implicitly or configured explicitly. The implicit determination method is that the network device indicates the identification of the first region of the first target information, and the terminal determines the coarse AOD and AOA angle information of the sensing target according to the identification of the first region, so as to determine the receiving vector w of the network-side device transmitting antenna port of the second signal (for example, determined according to AOD), and / or the receiving vector v of the terminal device receiving antenna port (for example, determined according to AOA). The explicit configuration scheme is that a codebook is pre-defined according to a protocol, and the network device indicates a code word according to the Type-I or Type-II beamforming principle, or indicates a receiving vector with multiple code words and corresponding weighting coefficients.

[0446] For example, the second signal is a 16-port CSI-RS, and the terminal has a 4-port receiving antenna, then the terminal receives the second signal to obtain the channel estimation result H16×4 , the terminal determines the network side antenna receiving vector / combining vector w 1×16 and the terminal antenna receiving vector v 4×1 , the terminal performs the second sensing measurement on the sensing target according to w 1×16 H 16×4 v 4×1 The channel estimation results are combined, and then the sensing target is subjected to a second sensing measurement from the frequency domain or time domain channel information to obtain a fine sensing measurement quantity. It can be understood that if the receiving vector w of the network side device transmitting antenna port or the receiving vector v of the terminal device receiving antenna port is not included in the second signal configuration information, the terminal selects a suitable combining vector according to a predefined codebook to perform a channel estimation combining operation.

[0447] The related parameters of the second signal can also include receiving vector information of an interference path. The terminal selects a code word orthogonal to the receiving vector of the interference path to perform a channel estimation combining operation when performing the combining processing, thereby reducing the influence of the interference path signal on the sensing measurement.

[0448] Step (4): the UE sends the sensing result to the sensing core network device.

[0449] Example 2:

[0450] Taking the second node as the UE and the first node as the BS as an example, the information sending method of the embodiment of the application includes the following steps:

[0451] Step (1): the UE sends a first signal, and the BS receives the first signal and performs a first sensing measurement. The BS obtains first target information based on the first sensing measurement, at least including: at least one of the first information, the second information, the fourth information, the sensing measurement quantity and the sensing performance evaluation index, and the association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information.

[0452] The first signal can be an SRS. The UE can be configured with multiple SRS resources or SRS-ResourceSet, corresponding to a group of time-frequency resources of SRS used for the first sensing measurement. The same or different SRS resources or SRS-ResourceSet can be mapped to different UE transmitting antenna ports. For example, through UE antenna switching, one SRS resource or SRS-ResourceSet corresponds to one or more UE transmitting antenna ports.

[0453] The UE sends second target information to the BS, at least including: antenna array configuration information of the UE used for the first sensing measurement, location information of at least one of the BS and the UE, and physical antenna array information of the UE;

[0454] The second target information further includes at least one of a value of all antenna port indexes k (i.e., a set K of different antenna port indexes) used for transmitting the SRS, an association relationship between an ID of an SRS resource or an SRS-ResourceSet and the antenna port k, an association relationship between the ID of the SRS resource or the SRS-ResourceSet and a UE antenna array physical antenna / subarray index, and an association relationship between the antenna port index k and the UE antenna array physical antenna / subarray index.

[0455] The UE sends the second target information to the BS, which can be carried in a Non-Access Stratum (NAS) signaling (sent to an AMF), an RRC signaling, a Medium Access Control (MAC) Control Element (CE), or a Layer 1 signaling (such as Uplink Control Information (UCI)), or can be reported through a user plane, for example, when the core network is a Protocol Data Unit (PDU) session and the RAN side is a Data Radio Bearer (DRB). Optionally, at least one of the second target information can be sent by the first device to the BS, including that the first device sends at least one of the second target information to the UE, and then the UE forwards it to the BS.

[0456] Step (2): The BS indicates the first target information to the UE. According to the first target information, the BS and the UE can determine the antenna port indexes used for subsequent sensing services or second sensing measurements. Specifically, the UE can determine a set K' of antenna port indexes in the first region range according to at least one of the first information, the second information, the fourth information, a sensing measurement quantity, and a sensing performance evaluation index, and an association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information. K' is a subset of all antenna port indexes K used for transmitting the SRS. In one embodiment, the UE first determines a set of antenna array physical antenna / subarray indexes corresponding to the first region on the UE side according to the content of the first target information, and then determines the set K' of antenna port indexes according to the association relationship between the antenna port index k and the UE antenna array physical antenna / subarray index. If there are multiple first regions, the UE can determine sets K'1, K'2, K'3,..., K'L (L>1) of antenna port indexes corresponding to L first regions. L .

[0457] If the second sensing measurement is to be performed, the first target information includes second parameter configuration information, and the second parameter configuration information includes at least one of antenna port indexes of the BS and the UE for the second sensing measurement; at this time, the BS and the UE can determine the antenna port indexes for the second sensing measurement according to at least one of the second parameter configuration information and the first target information.

[0458] Specifically, the BS can directly determine the antenna port index set K' in the first region on the UE side according to the first target information and the second target information. The second parameter configuration information indicated by the BS to the UE can include the antenna port index set K' for subsequent second sensing measurement.

[0459] An embodiment can also be that the BS directly determines the SRS resource or SRS-ResourceSet (including their IDs) associated with the first region on the UE side according to the first target information and the second target information.

[0460] Alternatively, the UE determines the second parameter configuration information based on the first target information and sends it to the BS, and the second parameter configuration information includes at least one of antenna port indexes of the BS and the UE for the second sensing measurement; the BS and the UE determine the antenna port indexes for the second sensing measurement according to at least one of the second parameter configuration information and the first target information. An embodiment can be that the second parameter configuration information includes the SRS resource or SRS-ResourceSet (including their IDs) for the second sensing measurement, which can be a subset of the SRS resource or SRS-ResourceSet for the first sensing measurement, or can be the SRS resource reconfigured based on the first target information and corresponding to the transmission antenna port of the first region on the UE side.

[0461] Step (3): The BS and the UE perform sensing or second sensing measurement.

[0462] Step (4): The UE sends the sensing result to the sensing core network device.

[0463] Example Group Two:

[0464] This example group implements a large-scale MIMO sensing method.

[0465] The embodiments of the present application can realize the sensing beamforming or precoding of at least one of the transmitting end and the receiving end in MIMO sensing, so as to improve the sensing range (or distance), suppress the environmental clutter interference, and improve the MIMO sensing performance. Before the sensing service, the second node and the first node perform the first sensing measurement to determine the visible area of at least one of the second node and the first node, so as to determine the beamforming or precoding vector of at least one of the second node and the first node.

[0466] Example 3:

[0467] Taking the second node as the BS and the first node as the UE as an example, the information sending method of the embodiments of the present application includes the following steps:

[0468] Step (1): The BS sends the first signal, and the UE receives the first signal and performs the first sensing measurement. The UE obtains the first target information based on the first sensing measurement, at least including: at least one of the first information, the second information, the fourth information, the fifth information, the seventh information, the sensing measurement quantity, and the sensing performance evaluation index, the association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information, and the association relationship between at least one of the fifth information and the seventh information and the fourth information.

[0469] The first signal can be CSI-RS. The BS can configure a plurality of CSI-RS resources or CSI-RS-ResourceSet, corresponding to a set of time-frequency resources of the CSI-RS used for the first sensing measurement. One or more CSI-RS resources correspond to one DFT beam on the BS side.

[0470] The BS sends the second target information to the UE, at least including: the antenna array configuration information of the BS used for the first sensing measurement, the location information of at least one of the BS and the UE, and the physical antenna array information of the BS.

[0471] The second target information further includes at least one of the following: the value of all antenna port indexes p (i.e. the set P of different antenna port indexes) used for transmitting the CSI-RS, the association relationship between the ID of the CSI-RS resource or the CSI-RS-ResourceSet and the antenna port p, the association relationship between the ID of the CSI-RS resource or the CSI-RS-ResourceSet and the physical antenna / subarray index of the BS antenna array, and the association relationship between the antenna port index p and the physical antenna / subarray index of the BS antenna array.

[0472] The BS sends second target information to the UE, which can be carried in a physical broadcast channel (PBCH) or a system information block (SIB) in a broadcast or multicast manner, or carried in a radio resource control (RRC) or downlink control information (DCI) in a unicast manner, or a combination of the above, i.e., using a broadcast message to indicate part of the common information and using a unicast message to indicate part of the User-specified information.

[0473] Optionally, at least one of the second target information can be sent by the first device to the UE, including that the first device sends at least one of the second target information to the BS, and the BS forwards the at least one of the second target information to the UE.

[0474] Step (2): The UE feeds back the first target information to the BS. According to the first target information, the BS and the UE can determine the beamforming or precoding vector for subsequent sensing services, i.e., the first vector and the second vector.

[0475] Specifically, the BS can determine the antenna port index set P' in the first region range according to at least one of the first information, the second information, the fourth information, the sensing measurement quantity, and the sensing performance evaluation index, and the association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information, P' being a subset of all antenna port indexes P for transmitting the CSI-RS;

[0476] One embodiment is that the BS first determines the antenna array physical antenna / subarray index set corresponding to the first region on the BS side according to the above-mentioned first target information content, and then determines the antenna port index set P' according to the association relationship between the antenna port index p and the BS antenna array physical antenna / subarray index; if there are multiple first regions, the BS can determine the antenna port index sets P'1, P'2, P'3,..., P' corresponding to L (L>1) first regions. L Then, the BS determines the CSI-RS resource or CSI-RS-ResourceSet (including their IDs) associated with the first region on the BS side and the DFT beams associated with them according to the association relationship between the ID of the CSI-RS resource or CSI-RS-ResourceSet and the antenna port p.

[0477] One embodiment is that the UE determines the DFT beam associated with the first region on the BS side according to at least one of the second target information. The UE determines the fifth information, which can be the PMI corresponding to the beamforming or precoding vector for subsequent sensing services.

[0478] Step (3): The BS and the UE perform sensing.

[0479] Step (4): The UE sends the sensing result to the sensing core network device.

[0480] Example 4:

[0481] Taking the second node as the UE and the first node as the BS as an example, the information sending method of the embodiment of the application includes the following steps:

[0482] Step (1): The UE sends a first signal, and the BS receives the first signal and performs first sensing measurement. The BS obtains first target information based on the first sensing measurement, at least including: the first information, the second information, the fourth information, the fifth information, the seventh information, at least one of the sensing measurement quantity and the sensing performance evaluation index, the association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information, and the association relationship between at least one of the fifth information and the seventh information and the fourth information.

[0483] The first signal can be an SRS. The UE can be configured with multiple SRS resources or SRS-ResourceSets, corresponding to a set of time-frequency resources of SRS for first sensing measurement. The same or different SRS resources or SRS-ResourceSets can be mapped to different UE transmit antenna ports. For example, through UE antenna switching, one SRS resource or SRS-ResourceSet corresponds to one or more UE transmit antenna ports. One or more SRS resources correspond to one beam on the UE side.

[0484] The UE sends second target information to the BS, at least including: antenna array configuration information of the UE for first sensing measurement, location information of at least one of the BS and the UE, and physical antenna array information of the UE.

[0485] The second target information further includes at least one of the following: the value of all antenna port indexes k for transmitting SRS (i.e., the set K of different antenna port indexes), the association relationship between the ID of the SRS resource or SRS-ResourceSet and the antenna port k, the association relationship between the ID of the SRS resource or SRS-ResourceSet and the UE antenna array physical antenna / subarray index, and the association relationship between the antenna port index k and the UE antenna array physical antenna / subarray index.

[0486] The second target information sent by the UE to the BS can be carried in NAS signaling (sent to the AMF), RRC signaling, MAC CE, or layer 1 signaling (such as UCI), or can be reported through a user plane (for example, the core network is a PDU session, and the RAN side is a DRB). Optionally, at least one of the second target information can be sent by the first device to the BS, including that the first device sends at least one of the second target information to the UE, and the UE forwards the at least one of the second target information to the BS.

[0487] Step (2): The BS indicates the first target information to the UE. According to the first target information, the BS and the UE can determine the beamforming or precoding vector, i.e., the first vector and the second vector, for subsequent sensing services.

[0488] Specifically, the UE can determine the antenna port index set K' in the first region range according to at least one of the first information, the second information, the fourth information, the sensing measurement quantity, and the sensing performance evaluation index, and an association relationship between at least one of the sensing measurement quantity and the sensing performance evaluation index and the fourth information, K' being a subset of all antenna port indexes K for transmitting SRS;

[0489] In an implementation, the UE first determines the antenna array physical antenna / subarray index set corresponding to the first region on the UE side according to the first target information content, and then determines the antenna port index set K' according to the association relationship between the antenna port index k and the UE antenna array physical antenna / subarray index; if there are multiple first regions, the UE can determine the antenna port index sets K1', K2', K3',..., K L ' corresponding to L (L>1) first regions. Then, the UE determines the SRS resource or SRS-ResourceSet (including their IDs) associated with the first region on the UE side according to the association relationship between the ID of the SRS resource or SRS-ResourceSet and the antenna port p, and the UE-side beam associated with them. The UE determines the fifth information.

[0490] Step (3): The BS and the UE perform sensing;

[0491] Step (4): The UE sends the sensing result to the sensing core network device.

[0492] Referring to FIG. 6, FIG. 6 is a flowchart of an information receiving method according to an embodiment of the present application. As shown in FIG. 6, the information receiving method includes the following steps:

[0493] Step 201: The second node sends a first signal.

[0494] In step 202, the second node receives first target information sent by the first node, wherein the first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node.

[0495] Optionally, the first target information comprises at least one of the following:

[0496] first information used to represent a shape of the first area;

[0497] second information used to represent a physical position of a unit constituting the first area;

[0498] third information used to represent a transformation relationship between the unit constituting the first area and a basic unit;

[0499] fourth information used to identify the first area;

[0500] fifth information used for precoding information used by the second node for performing a second sensing measurement;

[0501] sixth information comprising at least one of a sensing measurement value and a sensing performance evaluation index measurement value;

[0502] a correlation relationship between the fourth information and the fifth information;

[0503] a correlation relationship between the fourth information and the sixth information.

[0504] Optionally, the first information comprises a first index, and the first index is an index of one or more basic units associated with the first area.

[0505] Optionally, the second information comprises a second index, and the second index is used to indicate a physical position or an antenna port logical position of a target unit in an antenna array of the second node, wherein the target unit is a basic unit corresponding to the first index, or the target unit is a unit having a transformation relationship with the basic unit corresponding to the first index, and the target unit is used to constitute the first area.

[0506] Optionally, the first target information comprises the fourth information, and the fourth information comprises one or more fourth indexes, and each fourth index corresponds to a first area, and the first area is determined by at least one of the first information, the second information, the third information and the fifth information.

[0507] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0508] Optionally, the basic unit comprises at least one of:

[0509] a two-dimensional visual area for characterizing a two-dimensional antenna array area;

[0510] a one-dimensional visual area for characterizing a one-dimensional antenna array area.

[0511] Optionally, the method further comprises:

[0512] the second node sends second target information to the first node, the second target information comprising at least one of:

[0513] position information of at least one of the second node and the first node;

[0514] first parameter configuration information of at least one of the second node and the first node for the first perception measurement;

[0515] target parameter configuration information, the target parameter configuration information being used to obtain at least one of fifth information and sixth information.

[0516] Optionally, the first parameter configuration information comprises at least one of:

[0517] configuration information of the first signal;

[0518] configuration information of an antenna array or an antenna port used for the first perception measurement;

[0519] a number of the first areas or a first threshold value;

[0520] an accuracy of the first areas or a second threshold value;

[0521] wherein the first threshold value is a threshold value of the number of the first areas, and the second threshold value is a threshold value of the accuracy of the first areas.

[0522] Optionally, the target parameter configuration information comprises at least one of:

[0523] indication information used to indicate a parameter estimation algorithm;

[0524] decision information of the first areas;

[0525] a type of a perception measurement quantity;

[0526] wherein the parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the fifth information and the sixth information.

[0527] Optionally, the method further comprises:

[0528] The second node receives third target information sent by the first node, and the third target information includes at least one of the following:

[0529] Position information of the first node;

[0530] Physical antenna array information of the first node;

[0531] State information of the first node;

[0532] Communication capability information of the first node;

[0533] Sensing capability information of the first node;

[0534] Resource information available for communication or sensing of the first node;

[0535] Computing capability information of the first node.

[0536] Optionally, after the second node receives the first target information sent by the first node, the method further includes at least one of the following:

[0537] The second node performs a sensing operation based on the first target information;

[0538] The second node obtains second parameter configuration information in the first target information, receives a second signal based on the second parameter configuration information (for example, determines second signal information based on the second parameter configuration information, and receives the second signal based on the second signal information), and performs the second sensing measurement;

[0539] The second node receives third parameter configuration information sent by the first node, receives the second signal based on the third parameter configuration information, and performs the second sensing measurement

[0540] The second node obtains second parameter configuration information in the first target information, sends a third signal based on the second parameter configuration information (for example, determines third signal information based on the second parameter configuration information, and sends the third signal based on the third signal information), and the third signal is used for the second sensing measurement;

[0541] The second node determines third parameter configuration information based on the first target information, sends the third parameter configuration information to the first node, and sends a third signal based on the third parameter configuration information (for example, determines third signal information based on the third parameter configuration information, and sends the third signal based on the third signal information), and the third signal is used for the second sensing measurement.

[0542] Optionally, the second node performs a sensing operation based on the first target information, including at least one of the following:

[0543] The second node acquires fifth information in the first target information, and sends a fourth signal based on the fifth information.

[0544] The second node determines first precoding information based on the first target information, and sends the fourth signal based on the first precoding information.

[0545] The fourth signal is a sensing-related signal.

[0546] It should be noted that the embodiment is as a corresponding second device in the embodiment shown in FIG. 3, and the specific implementation can refer to the related description of the embodiment shown in FIG. 3. To avoid repetition, the embodiment will not be described again.

[0547] The information sending method provided by the embodiment of the application can be executed by an information sending device. In the embodiment of the application, the information sending method is executed by the information sending device as an example, and the information sending device provided by the embodiment of the application is described.

[0548] The embodiment of the application provides an information sending device. As an example, the information sending device can be a communication device or a component in the communication device, for example, a chip. The communication device can be a terminal, a network side device or a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiment of the application is not limited specifically.

[0549] The information sending apparatus comprises a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be realized by software or by hardware. When realized by hardware, the processing module can be realized by a processor. The processor can comprise a general-purpose processor, a special-purpose processor, etc., for example, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be realized by a communication interface. The communication interface can comprise one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0550] Specifically, referring to FIG. 7, when the information sending apparatus is a first node or a component in the first node, the information sending apparatus 300 comprises:

[0551] a processing module 301 configured to perform a first sensing measurement on a first signal sent by a second node to obtain first target information;

[0552] a sending module 302 configured to send the first target information to the second node;

[0553] The first target information is related information of a first region, and the first region is a partial region of an antenna array of at least one of the first node and the second node.

[0554] Optionally, the first target information comprises at least one of the following:

[0555] first information used to represent a shape of the first region;

[0556] second information used to represent a physical position of a unit constituting the first region;

[0557] third information used to represent a transformation relationship between the unit constituting the first region and a basic unit;

[0558] Fourth information used for identifying the first region;

[0559] Fifth information, which is precoding information used by the second node for performing the second sensing measurement;

[0560] Sixth information, which is at least one of a sensing measurement value and a sensing performance evaluation index value;

[0561] Correlation between the fourth information and the fifth information;

[0562] Correlation between the fourth information and the sixth information.

[0563] Optionally, the first information comprises a first index, which is an index of one or more basic units associated with the first region.

[0564] Optionally, the second information comprises a second index, which is used for indicating a physical location or an antenna port logical location of a target unit in the second node antenna array, the target unit being a basic unit corresponding to the first index, or the target unit being a unit having a transformation relationship with the basic unit corresponding to the first index, the target unit being used for constituting the first region.

[0565] Optionally, the first target information comprises the fourth information, the fourth information comprising one or more fourth indexes, each of the fourth indexes corresponding to a first region, the first region being determined by at least one of the first information, the second information, the third information and the fifth information.

[0566] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0567] Optionally, the basic unit comprises at least one of:

[0568] A two-dimensional visual region used for representing a two-dimensional antenna array region;

[0569] A one-dimensional visual region used for representing a one-dimensional antenna array region.

[0570] Optionally, the receiving module is further configured to:

[0571] Receive second target information sent by the second node, the second target information comprising at least one of:

[0572] Position information of at least one of the second node and the first node;

[0573] The first parameter configuration information of at least one of the second node and the first node for the first perception measurement;

[0574] Target parameter configuration information, the target parameter configuration information being used for obtaining at least one of fifth information and sixth information.

[0575] Optionally, the first parameter configuration information comprises at least one of:

[0576] Configuration information of the first signal;

[0577] Configuration information of an antenna array or an antenna port used for the first perception measurement;

[0578] A number of the first areas or a first threshold value;

[0579] An accuracy of the first areas or a second threshold value;

[0580] The first threshold value is a threshold value of the number of the first areas, and the second threshold value is a threshold value of the accuracy of the first areas.

[0581] Optionally, the target parameter configuration information comprises at least one of:

[0582] Indication information used for indicating a parameter estimation algorithm;

[0583] Decision information of the first areas;

[0584] A type of a perception measurement quantity;

[0585] The parameter estimation algorithm is a signal processing algorithm used for obtaining at least one of the fifth information and the sixth information.

[0586] Optionally, the sending module is further used for:

[0587] Sending third target information to the second node, the third target information comprising at least one of:

[0588] Position information of the first node;

[0589] Physical antenna array information of the first node;

[0590] State information of the first node;

[0591] Communication capability information of the first node;

[0592] Perception capability information of the first node;

[0593] Resource information available for communication or perception of the first node;

[0594] the computing capability information of the first node.

[0595] The information sending apparatus provided in the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0596] The information receiving method provided in the embodiments of the present application can be executed by an information receiving apparatus. In the embodiments of the present application, the information receiving method executed by the information receiving apparatus is taken as an example to describe the information receiving apparatus provided in the embodiments of the present application.

[0597] The information receiving apparatus provided in the embodiments of the present application can be a communication device or a component in a communication device, for example, a chip. The communication device can be a terminal, a network side device or a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application are not limited in this regard.

[0598] The information receiving apparatus includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or hardware. When implemented by hardware, the processing module can be implemented by a processor. For example, the processor can include a general processor, a special purpose processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic device, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0599] Referring to FIG. 8, when the information receiving apparatus is a second node or a component in the second node, the information receiving apparatus 400 includes:

[0600] The sending module 401 is configured to send a first signal.

[0601] The receiving module 402 is configured to receive first target information sent by the first node, wherein the first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node.

[0602] Optionally, the first target information comprises at least one of the following:

[0603] first information used to represent a shape of the first area;

[0604] second information used to represent a physical position of a unit constituting the first area;

[0605] third information used to represent a transformation relationship between the unit constituting the first area and a basic unit;

[0606] fourth information used to identify the first area;

[0607] fifth information, which is precoding information used by the second node for performing a second sensing measurement;

[0608] sixth information, which is at least one of a sensing measurement value and a sensing performance evaluation index measurement value;

[0609] a correlation relationship between the fourth information and the fifth information;

[0610] a correlation relationship between the fourth information and the sixth information.

[0611] Optionally, the first information comprises a first index, which is an index of one or more basic units associated with the first area.

[0612] Optionally, the second information comprises a second index, which is used to indicate a physical position or an antenna port logical position of a target unit in the antenna array of the second node, wherein the target unit is a basic unit corresponding to the first index, or the target unit is a unit having a transformation relationship with the basic unit corresponding to the first index, and the target unit is used to constitute the first area.

[0613] Optionally, the first target information comprises the fourth information, and the fourth information comprises one or more fourth indexes, each of which corresponds to a first area determined by at least one of the first information, the second information, the third information, and the fifth information.

[0614] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0615] Optionally, the basic unit comprises at least one of:

[0616] a two-dimensional visual area for characterizing a two-dimensional antenna array area;

[0617] a one-dimensional visual area for characterizing a one-dimensional antenna array area.

[0618] Optionally, the sending module is further configured to:

[0619] send second target information to the first node, the second target information comprising at least one of:

[0620] position information of at least one of the second node and the first node;

[0621] first parameter configuration information of at least one of the second node and the first node for the first sensing measurement;

[0622] target parameter configuration information, the target parameter configuration information being used to obtain at least one of fifth information and sixth information.

[0623] Optionally, the first parameter configuration information comprises at least one of:

[0624] configuration information of the first signal;

[0625] configuration information of an antenna array or an antenna port used for the first sensing measurement;

[0626] a number of the first areas or a first threshold value;

[0627] an accuracy of the first areas or a second threshold value;

[0628] wherein the first threshold value is a threshold value of the number of the first areas, and the second threshold value is a threshold value of the accuracy of the first areas.

[0629] Optionally, the target parameter configuration information comprises at least one of:

[0630] indication information used to indicate a parameter estimation algorithm;

[0631] decision information of the first areas;

[0632] a type of a sensing measurement quantity;

[0633] wherein the parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the fifth information and the sixth information.

[0634] Optionally, the receiving module is further configured to:

[0635] receive third target information sent by the first node, the third target information comprising at least one of:

[0636] position information of the first node;

[0637] physical antenna array information of the first node;

[0638] state information of the first node;

[0639] communication capability information of the first node;

[0640] perception capability information of the first node;

[0641] resource information available for communication or perception of the first node;

[0642] computing capability information of the first node.

[0643] The information receiving apparatus provided by the embodiments of the present application can realize each process of the method embodiment of Figure 6 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0644] As shown in Figure 9, the embodiments of the present application further provide a communication device 500, comprising a processor 501 and a memory 502, wherein the memory 502 stores programs or instructions executable on the processor 501. For example, when the communication device 500 is a terminal, the programs or instructions are executed by the processor 501 to realize each step of the information sending method embodiment described above and achieve the same technical effects. When the communication device 500 is a network side device, the programs or instructions are executed by the processor 501 to realize each step of the information receiving method embodiment described above and achieve the same technical effects. To avoid repetition, details are not described herein.

[0645] The embodiments of the present application further provide a terminal, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to realize the steps in the method embodiments shown in Figure 3 or Figure 6. The terminal embodiment corresponds to the terminal side method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the information sending apparatus shown in Figure 7 or the information receiving apparatus shown in Figure 8. Specifically, Figure 10 is a hardware structure schematic diagram of a terminal for implementing the embodiments of the present application.

[0646] The terminal 600 includes, but is not limited to, at least part of components such as a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.

[0647] Those skilled in the art can understand that the terminal 600 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 610 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described here.

[0648] It should be understood that in the embodiments of the present application, the input unit 604 can include a graphics processor 6041 and a microphone 6042. The graphics processor 6041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 can include a display panel 6061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 can include two parts of a touch detection device and a touch controller. The other input devices 6072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, etc., which are not described here.

[0649] In the embodiments of the present application, after the radio frequency unit 601 receives downlink data from a network side device, the radio frequency unit 601 can transmit the downlink data to the processor 610 for processing. In addition, the radio frequency unit 601 can send uplink data to the network side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0650] The memory 609 can be used to store software programs or instructions and various data. The memory 609 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 609 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 609 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0651] The processor 610 can include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 610.

[0652] In the case where the first node is a terminal:

[0653] The radio frequency unit 601 is configured to perform a first sensing measurement on a first signal transmitted by a second node to obtain first target information.

[0654] The radio frequency unit 601 is further configured to transmit the first target information to the second node.

[0655] The first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node.

[0656] Optionally, the first target information includes at least one of the following:

[0657] First information used for representing a shape of the first area;

[0658] Second information used for representing a physical position of a unit constituting the first area;

[0659] Third information used for representing a transformation relationship between the unit constituting the first area and a basic unit;

[0660] Fourth information used for identifying the first area;

[0661] Fifth information being precoding information used by the second node for performing a second sensing measurement;

[0662] Sixth information being at least one of a sensing measurement value and a sensing performance evaluation index measurement value;

[0663] A correlation relationship between the fourth information and the fifth information;

[0664] A correlation relationship between the fourth information and the sixth information.

[0665] Optionally, the first information includes a first index, and the first index is an index of one or more basic units associated with the first area.

[0666] Optionally, the second information includes a second index, and the second index is used for indicating a physical position or an antenna port logical position of a target unit in an antenna array of the second node, the target unit being a basic unit corresponding to the first index, or the target unit being a unit having a transformation relationship with the basic unit corresponding to the first index, and the target unit being used for constituting the first area.

[0667] Optionally, the first target information includes the fourth information, and the fourth information includes one or more fourth indexes, each of the fourth indexes corresponding to a first area, and the first area being determined by at least one of the first information, the second information, the third information and the fifth information.

[0668] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0669] Optionally, the basic unit includes at least one of the following:

[0670] a two-dimensional visual region for characterizing a two-dimensional antenna array region;

[0671] a one-dimensional visual region for characterizing a one-dimensional antenna array region.

[0672] Optionally, the radio frequency unit 601 is further configured to:

[0673] receive second target information sent by the second node, the second target information including at least one of:

[0674] position information of at least one of the second node and the first node;

[0675] first parameter configuration information of at least one of the second node and the first node for the first sensing measurement;

[0676] target parameter configuration information, the target parameter configuration information being used to obtain at least one of fifth information and sixth information.

[0677] Optionally, the first parameter configuration information includes at least one of:

[0678] configuration information of the first signal;

[0679] configuration information of an antenna array or an antenna port for the first sensing measurement;

[0680] a number of the first regions or a first threshold value;

[0681] an accuracy of the first regions or a second threshold value;

[0682] wherein the first threshold value is a threshold value of the number of the first regions, and the second threshold value is a threshold value of the accuracy of the first regions.

[0683] Optionally, the target parameter configuration information includes at least one of:

[0684] indication information for indicating a parameter estimation algorithm;

[0685] decision information of the first regions;

[0686] a type of a sensing measurement quantity;

[0687] wherein the parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the fifth information and the sixth information.

[0688] Optionally, the radio frequency unit 601 is further configured to:

[0689] The third target information includes at least one of the following:

[0690] Position information of the first node;

[0691] Physical antenna array information of the first node;

[0692] State information of the first node;

[0693] Communication capability information of the first node;

[0694] Sensing capability information of the first node;

[0695] Resource information available for communication or sensing of the first node;

[0696] Computing capability information of the first node.

[0697] In a case where the second node is a terminal, the third target information includes at least one of the following:

[0698] The radio frequency unit 601 is configured to transmit a first signal.

[0699] The radio frequency unit 601 is further configured to receive first target information transmitted by the first node, the first target information being related information of a first area, and the first area being a partial area of an antenna array of at least one of the first node and the second node.

[0700] Optionally, the first target information includes at least one of the following:

[0701] First information used to represent a shape of the first area;

[0702] Second information used to represent a physical position of a unit constituting the first area;

[0703] Third information used to represent a transformation relationship between the unit constituting the first area and a basic unit;

[0704] Fourth information used to identify the first area;

[0705] Fifth information being precoding information used by the second node for second sensing measurement;

[0706] Sixth information being at least one of a sensing measurement value and a sensing performance evaluation index measurement value;

[0707] An association relationship between the fourth information and the fifth information;

[0708] An association relationship between the fourth information and the sixth information.

[0709] Optionally, the first information comprises a first index, the first index being an index of one or more basic units associated with the first area.

[0710] Optionally, the second information comprises a second index, the second index being used to indicate a target unit in a physical location or an antenna port logical location of the second node antenna array, the target unit being a basic unit corresponding to the first index, or the target unit being a unit having a transformation relationship with the basic unit corresponding to the first index, the target unit being used to constitute the first area.

[0711] Optionally, the first target information comprises the fourth information, the fourth information comprising one or more fourth indexes, each of the fourth indexes corresponding to a first area determined by at least one of the first information, the second information, the third information, and the fifth information.

[0712] Optionally, the basic unit is predefined by a protocol or configured by the first node or the second node.

[0713] Optionally, the basic unit comprises at least one of:

[0714] a two-dimensional visual area used to represent a two-dimensional antenna array area;

[0715] a one-dimensional visual area used to represent a one-dimensional antenna array area.

[0716] Optionally, the radio frequency unit 601 is further configured to:

[0717] send second target information to the first node, the second target information comprising at least one of:

[0718] location information of at least one of the second node and the first node;

[0719] first parameter configuration information of at least one of the second node and the first node used for the first perception measurement;

[0720] target parameter configuration information used to obtain at least one of fifth information and sixth information.

[0721] Optionally, the first parameter configuration information comprises at least one of:

[0722] configuration information of the first signal;

[0723] configuration information of an antenna array or an antenna port used for the first perception measurement;

[0724] a number of the first regions or a first threshold value;

[0725] a precision of the first regions or a second threshold value;

[0726] The first threshold value is a threshold value of the number of the first regions, and the second threshold value is a threshold value of the precision of the first regions.

[0727] Optionally, the target parameter configuration information includes at least one of the following:

[0728] indication information used for indicating a parameter estimation algorithm;

[0729] decision information of the first regions;

[0730] a type of the perception measurement quantity;

[0731] The parameter estimation algorithm is a signal processing algorithm used for obtaining at least one of the fifth information and the sixth information.

[0732] Optionally, the radio frequency unit 601 is further configured to:

[0733] receive third target information sent by the first node, the third target information including at least one of the following:

[0734] position information of the first node;

[0735] physical antenna array information of the first node;

[0736] state information of the first node;

[0737] communication capability information of the first node;

[0738] perception capability information of the first node;

[0739] resource information available for communication or perception of the first node;

[0740] computing capability information of the first node.

[0741] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the method embodiment in FIG. 3 or FIG. 6, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0742] The embodiment of the present application further provides a network side device, comprising a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running programs or instructions, and the steps of the method embodiment shown in FIG. 3 or FIG. 6 are realized. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the network side device embodiment, and the same technical effects can be achieved.

[0743] Specifically, the embodiment of the present application further provides a network side device, which can be the information sending device shown in FIG. 7 or the information receiving device shown in FIG. 8. As shown in FIG. 11, the network side device 700 comprises an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704 and a memory 705. The antenna 701 is connected with the radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information through the antenna 701, and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be sent, and sends the information to the radio frequency device 702, and the radio frequency device 702 processes the received information and sends the information out through the antenna 701.

[0744] The method performed by the network side device in the above embodiment can be realized in the baseband device 703, and the baseband device 703 comprises a baseband processor.

[0745] The baseband device 703 can comprise at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 11, one of the chips is a baseband processor, and the baseband processor is connected with the memory 705 through a bus interface to call the programs in the memory 705 and execute the network device operations shown in the above method embodiment.

[0746] The network side device can further comprise a network interface 706, which is a common public radio interface (Common Public Radio Interface, CPRI) for example.

[0747] Specifically, the network side device 700 of the embodiment of the present application further comprises instructions or programs stored in the memory 705 and executable on the processor 704, the processor 704 calls the instructions or programs in the memory 705 to execute the method performed by each module shown in FIG. 7 or FIG. 8, and the same technical effects are achieved, and thus the details are not described herein.

[0748] Specifically, the embodiment of the present application further provides a network side device. As shown in FIG. 12, the network side device 800 includes a processor 801, a network interface 802 and a memory 803. The network side device can be the apparatus shown in FIG. 7 or FIG. 8. Wherein, the network interface 802 is, for example, a common public radio interface (CPRI).

[0749] Specifically, the network side device 800 of the embodiment of the present application further includes instructions or programs stored on the memory 803 and executable on the processor 801, the processor 801 invokes the instructions or programs in the memory 803 to execute the method performed by each module shown in FIG. 7 or FIG. 8, and achieves the same technical effect. To avoid repetition, it will not be described here.

[0750] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by the processor to implement each process of the above-mentioned information sending method or information receiving method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0751] Wherein, the processor is the processor in the terminal or the network side device in the above-mentioned embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0752] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the above-mentioned information sending method or information receiving method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0753] It should be understood that the chip mentioned in the embodiment of the present application can also be called a system chip, a system chip, a chip system or a system on chip, etc.

[0754] The embodiment of the present application further provides a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement each process of the above-mentioned information sending method or information receiving method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0755] The embodiments of the present application further provide a wireless communication system, comprising: a first node and a second node, wherein the first node is configured to perform the steps of the information sending method applied to the first node as described above, and the second node is configured to perform the steps of the information receiving method applied to the second node as described above.

[0756] It should be noted that, in this document, the terms "comprises", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Also, it should be noted that the scope of the methods and apparatus of the present embodiments are not limited by the order of the steps or the sequences of the steps, as some steps can occur in different orders and / or concurrently with other steps besides those depicted and / or discussed. Additionally, certain features that are described in the context of certain examples can be combined with or removed from other examples.

[0757] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of computer software products and general hardware platforms, and of course, can also be realized by hardware. The computer software product is stored in a storage medium (such as a ROM, a RAM, a magnetic disc, an optical disc, etc.), and includes a plurality of instructions for making a terminal or a network side device execute the method described in each embodiment of the present application.

[0758] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, but not restrictive. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, and these embodiments all belong to the protection scope of the present application.

Claims

1. A method for information transmission, comprising: performing, by a first node, a first sensing measurement on a first signal transmitted by a second node to obtain first target information; and transmitting, by the first node, the first target information to the second node, wherein the first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of the first node and the second node, and wherein the first target information comprises at least one of: first information used to represent a shape of the first area; second information used to represent a physical position of a unit constituting the first area; third information used to represent a transformation relationship between the unit constituting the first area and a basic unit; fourth information used to identify the first area; fifth information used as precoding information for a second sensing measurement performed by the second node; sixth information used as at least one of a sensing measurement quantity measurement value and a sensing performance evaluation index measurement value; an association relationship between the fourth information and the fifth information; and an association relationship between the fourth information and the sixth information, wherein the first information comprises a first index of one or more basic units associated with the first area, and wherein the second information comprises a second index used to indicate a physical position or an antenna port logical position of a target unit in an antenna array of the second node, the target unit being a basic unit corresponding to the first index, or the target unit being a unit having a transformation relationship with the basic unit corresponding to the first index, the target unit being used to constitute the first area, and wherein the fourth information comprises one or more fourth indexes, each of the fourth indexes corresponding to a first area determined by at least one of the first information, the second information, the third information, and the fifth information, and wherein the basic unit is predefined by a protocol or configured by the first node or the second node, and wherein the basic unit comprises at least one of: a two-dimensional visual area used to represent a two-dimensional antenna array area; and a one-dimensional visual area used to represent a one-dimensional antenna array area, and wherein, before performing the first sensing measurement on the first signal transmitted by the second node, the method further comprises: receiving, by the first node, second target information transmitted by the second node, the second target information comprising at least one of: position information of at least one of the second node and the first node; first parameter configuration information of at least one of the second node and the first node used for the first sensing measurement; and target parameter configuration information used to obtain at least one of the fifth information and the sixth information, and wherein the first parameter configuration information comprises at least one of: configuration information of the first signal; configuration information of an antenna array or an antenna port used for the first sensing measurement; a number of the first areas or a first threshold value; an accuracy of the first area or a second threshold value. ​ ​ ​ 2. The method of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ 3. The method of claim 2, wherein, ​ 4. The method of claim 3, wherein, ​ 5. The method of any one of claims 2-4, wherein, ​ 6. The method of any one of claims 2-5, wherein, ​ 7. The method of any one of claims 2-6, wherein, ​ ​ ​ 8. The method of any one of claims 1-7, wherein, ​ ​ ​ ​ ​ 9. The method of claim 8, wherein, ​ ​ ​ ​ ​ The first threshold value is a threshold value of the number of the first regions, and the second threshold value is a threshold value of the accuracy of the first regions.

10. The method of claim 8 or 9, wherein, The target parameter configuration information includes at least one of the following: indication information for indicating a parameter estimation algorithm; decision information of the first region; a type of a sensing measurement quantity; The parameter estimation algorithm is a signal processing algorithm for obtaining at least one of the fifth information and the sixth information.

11. An information receiving method, comprising: a second node sending a first signal; the second node receiving first target information sent by a first node, the first target information being related information of a first region, and the first region being a partial region of an antenna array of at least one of the first node and the second node.

12. The method of claim 11, wherein, The first target information includes at least one of the following: first information for representing a shape of the first region; second information for representing a physical position of a unit constituting the first region; third information for representing a transformation relationship between the unit constituting the first region and a basic unit; fourth information for identifying the first region; fifth information being precoding information used by the second node for performing second sensing measurement; sixth information being at least one of a sensing measurement quantity measurement value and a sensing performance evaluation index measurement value; an association relationship between the fourth information and the fifth information; an association relationship between the fourth information and the sixth information.

13. The method of claim 12, wherein, The first information includes a first index, and the first index is an index of one or more basic units associated with the first region.

14. The method of claim 13, wherein, The second information includes a second index, and the second index is used for indicating a physical position or an antenna port logical position of a target unit in an antenna array of the second node, the target unit being a basic unit corresponding to the first index, or the target unit being a unit having a transformation relationship with the basic unit corresponding to the first index, and the target unit being used for constituting the first region.

15. The method of any one of claims 12-14, wherein, The first target information includes the fourth information, and the fourth information includes one or more fourth indexes, each of the fourth indexes corresponding to a first region, and the first region being determined by at least one of the first information, the second information, the third information, and the fifth information.

16. The method of any one of claims 12-15, wherein, The basic unit is predefined by a protocol or configured by the first node or the second node.

17. The method of any one of claims 12-16, wherein, The basic unit includes at least one of the following: a two-dimensional visible region for representing a two-dimensional antenna array region; a one-dimensional visible region for representing a one-dimensional antenna array region.

18. The method of any one of claims 11-17, wherein, The method further includes: the second node sending second target information to the first node, the second target information including at least one of the following: position information of at least one of the second node and the first node; first parameter configuration information of at least one of the second node and the first node for first sensing measurement; target parameter configuration information for obtaining at least one of the fifth information and the sixth information.

19. The method of claim 18, wherein, The first parameter configuration information comprises at least one of the following: configuration information of the first signal; configuration information of an antenna array or an antenna port used for the first sensing measurement; a number of the first areas or a first threshold value; an accuracy of the first areas or a second threshold value; The first threshold value is a threshold value of the number of the first areas, and the second threshold value is a threshold value of the accuracy of the first areas.

20. The method of claim 18 or 19, wherein, The target parameter configuration information comprises at least one of the following: indication information used for indicating a parameter estimation algorithm; decision information of the first areas; a type of a sensing measurement quantity; The parameter estimation algorithm is a signal processing algorithm used for obtaining at least one of the fifth information and the sixth information. 21.An information sending device, comprising: a processing module configured to perform first sensing measurement on a first signal sent by a second node to obtain first target information; a sending module configured to send the first target information to the second node; The first target information is related information of a first area, and the first area is a partial area of an antenna array of at least one of a first node and the second node.

22. The apparatus of claim 21, wherein, The first target information comprises at least one of the following: first information used for representing a shape of the first area; second information used for representing a physical position of a unit constituting the first area; third information used for representing a transformation relationship between the unit constituting the first area and a basic unit; fourth information used for identifying the first area; fifth information, which is precoding information used by the second node for performing second sensing measurement; sixth information, which is at least one of a sensing measurement quantity measurement value and a sensing performance evaluation index measurement value; an association relationship between the fourth information and the fifth information; an association relationship between the fourth information and the sixth information.

23. The apparatus of claim 21 or 22, wherein, The device further comprises: a receiving module configured to receive second target information sent by the second node, the second target information comprising at least one of the following: position information of at least one of the second node and the first node; first parameter configuration information of at least one of the second node and the first node used for the first sensing measurement; target parameter configuration information used for obtaining at least one of the fifth information and the sixth information. 24.An information receiving device, comprising: a sending module configured to send a first signal; a receiving module configured to receive first target information sent by a first node, the first target information being related information of a first area, and the first area being a partial area of an antenna array of at least one of the first node and a second node.

25. The apparatus of claim 24, wherein, The first target information comprises at least one of the following: first information used for representing a shape of the first area; second information used for representing a physical position of a unit constituting the first area; third information used for representing a transformation relationship between the unit constituting the first area and a basic unit; a fourth information, the fourth information being used to identify the first area; a fifth information, the fifth information being precoding information used by the second node for the second sensing measurement; a sixth information, the sixth information being at least one of a sensing measurement value and a sensing performance evaluation index value; a correlation between the fourth information and the fifth information; a correlation between the fourth information and the sixth information.

26. The apparatus of claim 24 or 25, wherein, The sending module is further configured to: send second target information to the first node, the second target information including at least one of: location information of at least one of the second node and the first node; first parameter configuration information used by at least one of the second node and the first node for the first sensing measurement; target parameter configuration information, the target parameter configuration information being used to obtain at least one of the fifth information and the sixth information. 27.An electronic 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 information sending method according to any one of claims 1-10, or implement the information receiving method according to any one of claims 11-20. 28.A readable storage medium, wherein the readable storage medium stores programs or instructions, the programs or instructions being executed by a processor to implement the information sending method according to any one of claims 1-10, or implement the information receiving method according to any one of claims 11-20.

29. A computer program, wherein, The computer program is executed by at least one processor to implement the information sending method according to any one of claims 1-10, or implement the information receiving method according to any one of claims 11-20.

30. A computer program product, wherein, The computer program product is executed by at least one processor to implement the information sending method according to any one of claims 1-10, or implement the information receiving method according to any one of claims 11-20. 31.An information sending apparatus, the apparatus being configured to implement the information sending method according to any one of claims 1-10. 32.An information receiving apparatus, the apparatus being configured to implement the information receiving method according to any one of claims 11-20. 33.A chip, comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being used to run programs or instructions to implement the information sending method according to any one of claims 1-10, or implement the information receiving method according to any one of claims 11-20.

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