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

Abstract

The present application belongs to the technical field of communications. Disclosed are an information sending method and apparatus, an information reception method and apparatus, and a device. The information sending method in the embodiments of the present application comprises: a terminal performing first channel measurement on a first signal sent by a network side device, so as to obtain first target information; and the terminal sending the first target information to the network side device, wherein the first target information is information related to a first area, and the first area is a partial area of an antenna array or a subset of an antenna port set of at least one of the network side device and the terminal.

Description

Information transmission methods, information reception methods, devices and equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411024996.X, filed in China on July 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to an information transmission method, an information reception method, an apparatus, and a device. Background Technology

[0004] In related technologies, due to the large array size of antenna arrays in communication equipment, different propagation paths exist in different areas of the array, resulting in spatially non-stationary channel characteristics. For an antenna array, signals reflected (or scattered) by certain reflectors (or scatterers) in the environment can only be received by antennas within a certain local area of ​​the array; conversely, only signals transmitted by antennas within a certain local area of ​​the array can be reflected (or scattered) by certain reflectors (or scatterers) in the environment. This local area is called the visible area. However, if the spatial non-stationary characteristics are not considered, and communication equipment transmits or receives signals through the entire antenna array, it will lead to high power consumption. Summary of the Invention

[0005] This application provides an information sending method, an information receiving method, an apparatus, and a device that can solve the problem of high power consumption in devices.

[0006] Firstly, a method for sending information is provided, the method comprising:

[0007] The terminal performs a first channel measurement on the first signal sent by the network-side device to obtain the first target information;

[0008] The terminal sends the first target information to the network-side device;

[0009] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

[0010] Secondly, an information receiving method is provided, the method comprising:

[0011] The network-side device sends the first signal;

[0012] The network-side device receives first target information sent by the terminal. The first target information is related to a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

[0013] Thirdly, an information transmission device is provided, comprising:

[0014] The receiving module is used to perform a first channel measurement on the first signal sent by the network-side device to obtain the first target information;

[0015] The sending module is used to send the first target information to the network-side device;

[0016] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

[0017] Fourthly, an information receiving device is provided, comprising:

[0018] The transmitting module is used to transmit the first signal;

[0019] A receiving module is used to receive first target information sent by a terminal, wherein the first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

[0020] Fifthly, an information transmitting apparatus is provided, the apparatus being configured to perform the steps of the method described in 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 described in the second aspect.

[0022] In a seventh aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0023] Eighthly, a terminal is provided, including a processor and a communication interface, wherein,

[0024] A communication interface is used to perform a first channel measurement on a first signal sent by a network-side device to obtain first target information.

[0025] A communication interface is used to send the first target information to the network-side device;

[0026] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

[0027] A ninth aspect provides a network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0028] In a tenth aspect, a network-side device is provided, including a processor and a communication interface, wherein,

[0029] A communication interface used to send the first signal;

[0030] A communication interface is used to receive first target information sent by a terminal, wherein the first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

[0031] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0032] In a twelfth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the second aspect.

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

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

[0035] In this embodiment, the terminal performs a first channel measurement on a first signal sent by a network-side device to obtain first target information; the terminal sends the first target information to the network-side device; the first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal. In this way, signals can be transmitted or received through the first region, thereby reducing the power consumption of the device. Attached Figure Description

[0036] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0037] Figure 2a is a schematic diagram of near-field spherical wave and far-field plane wave propagation provided in an embodiment of this application;

[0038] Figure 2b is a schematic diagram of spatial nonstationarity provided in an embodiment of this application;

[0039] Figure 3 is a flowchart of an information sending method provided in an embodiment of this application;

[0040] Figure 4 is a schematic diagram of one of the basic units provided in the embodiments of this application;

[0041] Figure 5 is a schematic diagram of a basic unit provided in an embodiment of this application;

[0042] Figure 6 is a flowchart of an information receiving method provided in an embodiment of this application;

[0043] Figure 7 is a schematic diagram of the structure of an information transmission device provided in an embodiment of this application;

[0044] Figure 8 is a schematic diagram of the structure of an information receiving device provided in an embodiment of this application;

[0045] Figure 9 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0046] Figure 10 is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0047] Figure 11 is a schematic diagram of the structure of a network-side device provided in an embodiment of this application;

[0048] Figure 12 is a second schematic diagram of the structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0050] 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.

[0051] 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.

[0052] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0053] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0054] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0055] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0056] For ease of understanding, the following explains some aspects of the embodiments of this application:

[0057] 1. Spherical wave propagation and spatial nonstationarity

[0058] In 5G (5th Generation Mobile Communication Technology) NR systems, the User Equipment (UE, i.e., the terminal) is always considered to be in the far-field region of the base station. In this case, signal propagation between the base station and the UE can be approximated using a plane wave model. As shown in Figure 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. Therefore, the phase difference of the propagation paths between each antenna and the UE / reflector (or scatterer) is determined only 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 the various antennas of the base station.

[0059] Compared to the 5G NR channel model, the 6G wireless channel model adds a near-field spherical wave model and a spatial non-stationary model. In the near-field region, the propagation paths between the base station's antennas and the UE / reflector (or scatterer) can no longer be considered parallel and need to be modeled using spherical waves. Near-field communication differs from far-field communication in several ways. The first is the non-linear variation of the phase of the received signal across the entire array. In the far-field condition, the phase of the array steering vector scales approximately linearly with respect to different elements, making mathematical analysis easier. However, this property does not hold true in the near-field. Second, as the array aperture increases, the amplitude / path loss variation across the entire array needs to be considered. This is because the distance between the user and the array center may differ significantly from the distance between the user and the array edge. Third, in the near field, the tilt angle of the incident wave changes significantly from the array center to the edge, causing variations in the effective projected aperture of different antennas on the array.

[0060] Another change in the 6G wireless channel model lies in the spatial non-stationarity of the channel. Due to the large size of the antenna array, different regions of the array have different propagation paths, resulting in spatial non-stationarity of the channel. For a large-scale antenna array, signals reflected (or scattered) by certain reflectors (or scatterers) in the environment can only be received by antennas within a specific local area of ​​the array. Conversely, only signals transmitted by antennas within a specific local area of ​​the array can be reflected (or scattered) by certain reflectors (or scatterers) in the environment. Correspondingly, this local area is called the visible area (of the multipath on the array). As shown in Figure 2b, the visible area of ​​"far-field cluster 1" is "visible area 1," and the visible area of ​​"near-field cluster 1" is "visible area 2." It should be noted that, for clarity, Figure 2b only shows clusters whose visible area (or length) is smaller than the entire array of the base station (BS). In real-world environments, there are also reflectors (or scatterers) whose visible area is the entire array.

[0061] 2. Channel model and codebook feedback for near-field MIMO

[0062] 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.

[0063] Reference [1] presents a channel modeling method that considers near-field spherical waves and spatial non-stationary characteristics. It is assumed that the wireless channel contains K transmission paths, and the wireless channel is represented as the superposition of the channel frequency responses (CFRs) of the K transmission paths at frequency f. Near-field characteristic parameter A and spatial non-stationary parameter S are introduced to represent the near-field spatial non-stationary channel, as follows:

[0064] in Given an M*N matrix, the system operating frequency band f∈[f L ,f U], ⊙ represents the elementwise product operation. A(θ,φ,d) represents the spherical wave correction model, where the 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 / origin of the local coordinate system of the antenna array (e.g., the center point of the antenna array, or the upper left corner, etc.). This represents a plane wave model. Note that the channel model above assumes that one side of the wireless channel is a near-field spherical wave, spatially non-stationary, and the other side is a far-field plane wave, spatially stationary. For example, a near-field, spatially non-stationary model is used for a larger base station antenna array, while a far-field, spatially stationary model is used for a smaller terminal antenna array. If both sides are near-field spherical wave models, then it is necessary to... Revised to

[0065] For a communication system at frequency f, the plane wave channel H(α,τ,θ,φ) consisting of K paths is represented as:

[0066] Where {α k ,τ k} represents the amplitude and transmission delay of the k-th path. This represents the difference between the spherical wave model and the plane wave propagation model, where element a... m,k This represents the correction value for the spherical wave model of the k-th transmission path on the m-th antenna of the base station.

[0067] Where d k This represents the vector from the base station antenna array reference point (e.g., the center point of the array) to the scatterer k (it can be understood that the kth transmission path is generated by scattering / refracting / reflection by the scatterer k).

[0068] Where {θ k ,φ k} represents the vertical and horizontal angles of the k-th path relative to the normal of the array surface at the reference point.

[0069] Vector d m,k =d k -d m Let d be the vector of the scatterer from the m-th antenna to the k-th transmission path, where d m This represents the vector from the m-th antenna to the reference point of the antenna array.

[0070] Matrix S is used to represent the spatial non-stationary characteristics of K transmission paths, S = [s1, ..., s2]. k ,…,s K ] s k=[s 1,k ,…,s m,k ,…,s M,k ] T

[0071] Where s m,k This represents the visibility of the m-th antenna to the k-th transmission path.

[0072] matrix The receiver modeling for N antennas is similar to that of A(θ,φ,d). For ordinary terminals, near-field spherical waves and spatial non-stationary characteristics can be ignored, so the parameter d and matrix S are omitted.

[0073] Based on the above channel model, the end-to-end received signal can be expressed as:

[0074] Y = H sns WX

[0075] After reconstructing the expression based on spatial nonstationarity

[0076] This means that for spatially non-stationary channels, the precoding vector W can be reconstructed / feedback transmitted based on the spatial non-stationary characteristics. For example, for ZF (zero forcing), R represents the receiver matrix on the terminal side.

[0077] Furthermore, in real-world channels, propagation scenarios may involve a mixture of near-field and far-field transmission paths, and the energy of each of the K transmission paths is different. Therefore, a few high-energy spatially non-stationary paths can be selected for individual feedback based on their spatial non-stationary characteristics, while the other paths are treated as a whole and fed back using existing methods.

[0078] in G represents the set of spatially non-stationary transport paths with relatively high energy (or exceeding a threshold). Superimposed responses outside the transmission path. This can be understood for the first item. Information about non-stationary regions in the feedback space is needed. κ , τ κ And the corresponding beam vector within that region; for the second term R*G, the existing Type I or Type II method is used to feed back the beam vector.

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

[0080] 3. Network energy saving

[0081] Massive MIMO (Multiple Input Multiple Output) technology consumes significantly more energy due to the large number of antennas and corresponding radio frequency devices. Traditional base station energy-saving methods primarily involve on-site power-off, time-controlled switching, and cell blocking, but these methods are relatively crude and fail to address user experience. In the 5G era, 5G base stations, employing 64T64R massive MIMO antennas and supporting greater bandwidth, consume even more energy than 4G base stations. Furthermore, 5G operates on higher frequencies and has a smaller coverage area per station; to achieve the same coverage as a 4G network, the deployment scale of 5G base stations will be 2-3 times that of 4G base stations. With higher equipment power consumption and a greater number of sites, power consumption will inevitably be even higher, making excessive 5G power consumption a major pain point in current network operations.

[0082] Base station energy saving can be categorized into symbol shutdown, carrier shutdown, channel shutdown, and deep sleep techniques based on their implementation principles. When the number of UEs in a cell is small, the capacity / coverage gain brought by mMIMO becomes redundant. In this case, the network side can shut down some Transceiver Units (TXRUs) to achieve network energy saving. Some TXRUs corresponding to certain antenna elements can be shut down to serve a small number of users. After shutting down some TXRUs, the beam coverage will be reduced, while the beamwidth will increase.

[0083] When choosing to disable TxRUs, the spatial non-stationary characteristics of wireless signals can be considered. TxRUs within the line of sight can be enabled to enter Network Energy-saving (NES) mode. Therefore, terminal devices can report the line of sight of the base station antenna array to assist the network in determining the appropriate NES configuration.

[0084] 4. Definitions

[0085] Explanation 1: First Measured Quantity

[0086] The first measurement, namely the measurement related to communication services, includes at least one of the following:

[0087] The received power of the first signal at at least one port;

[0088] The received strength (amplitude or power) of the first signal at at least one port, or the Received Signal Strength Indicator (RSSI);

[0089] The reception quality indication of the first signal at at least one port, or the received signal-to-noise ratio (SNR) or signal-to-interference-plus-noise ratio (SINR) of the reflected signal from the sensing target or sensing area;

[0090] Bit Error Rate (BER) or Block Error Ratio (BLER) for communication using the first signal of at least one port;

[0091] Use a communication precoding matrix indicator (PMI) with at least one port;

[0092] At least one port's Channel Quality Indicator (CQI);

[0093] Use a communication channel rank indicator (RI) with at least one port;

[0094] Spectral efficiency of communication using a first signal with at least one port;

[0095] Transmission capacity for communication using the first signal of at least one port.

[0096] Explanation 2: Second measurement quantity

[0097] The second measurement includes channel parameter information obtained by channel estimation or parameter estimation based on channel estimation, and channel multipath parameter information, specifically including at least one of the following:

[0098] Channel estimation matrix (or channel state information matrix, or channel transfer function matrix);

[0099] The covariance matrix or correlation matrix of the channel estimation matrix;

[0100] Index information for channel multipath;

[0101] The complex amplitude of channel multipath includes both amplitude and phase;

[0102] Multipath delay;

[0103] The angle of multipath includes at least one of the following: Azimuth of Arrival (AOA), Azimuth of Departure (AOD), Elevation of Arrival (EOA), and Elevation of Departure (EOD);

[0104] Multipath and near / far field information of the visible area, which indicates the near / far field relationship of the multipath within its visible area (i.e., whether it is near or far field relative to the subarray set corresponding to the visible area); for example, using 1 bit information, "1" indicates near field and "0" indicates far field;

[0105] First-hop cluster / path / subpath distance (FBCD) can be the distance between the reflection (or scattering) point of the first hop of the multipath and the reference point of the entire array at the transmitter (e.g., the first antenna element of the entire array), or the distance between the reflection (or scattering) point of the first hop of the multipath and the reference point of the corresponding subarray set in the visible area of ​​the transmitter (e.g., the first antenna element of subarray 1 in the subarray set).

[0106] Last Bounce Cluster / Path / Subpath Distance (LBCD) can be the distance between the reflection (or scattering) point of the last hop of the multipath and the reference point of the entire array at the receiver (e.g., the first antenna element of the entire array), or the distance between the reflection (or scattering) point of the last hop of the multipath and the reference point of the corresponding subarray set in the visible area of ​​the receiver (e.g., the first antenna element of subarray 1 in the subarray set).

[0107] Channel power domain parameters include at least one of the following: path loss, shadowing fading, average power, Rician K factor, and polarization crossover ratio;

[0108] Channel delay domain parameters include at least one of the following: average delay spread, root mean square delay spread, and coherence bandwidth;

[0109] Channel Doppler domain parameters include at least one of the following: average Doppler frequency shift, root mean square Doppler spread, and coherence time;

[0110] Channel directivity parameters include at least one of the following: transmitter-side direction spread, receiver-side direction spread, global departure azimuth spread, global departure elevation spread, global arrival azimuth spread, and global arrival elevation spread;

[0111] Multipath or multipath cluster parameters include at least one of the following: number of clusters, average number of sub-paths within a cluster, cluster delay spread, cluster departure azimuth spread, cluster departure pitch spread, cluster arrival azimuth spread, and cluster arrival pitch spread. It should be noted that the terms "multipath", "path", "multipath cluster", and "cluster" have the same meaning.

[0112] The channel eigenvalue class parameters include at least one of the following: channel eigenvalue, channel eigenvalue extension, ratio of the maximum to the minimum eigenvalue of the channel, channel eigenvector, channel singular value, channel singular value extension, ratio of the maximum to the minimum singular value of the channel, and channel singular vector; wherein, the channel eigenvalue and eigenvector are obtained by eigenvalue decomposition (EVD) of the channel matrix covariance matrix or correlation matrix; and the channel singular value and singular vector are obtained by singular value decomposition (SVD) of the channel matrix.

[0113] Explanation 3: Parameter Configuration Information

[0114] The parameter configuration information includes at least one of the following:

[0115] Waveform types, such as Orthogonal Frequency Division Multiplexing (OFDM), Single-carrier Frequency-Division Multiple Access (SC-FDMA), OTFS, Frequency Modulated Continuous Wave (FMCW), pulse signals, etc.

[0116] Subcarrier spacing: For example, the subcarrier spacing of an OFDM system is 30 kHz;

[0117] Guard interval: The time interval between the end of signal transmission and the latest echo signal of that signal being received; this parameter is proportional to the maximum sensing distance; for example, it can be expressed as 2d. max / c is calculated to obtain d max This refers to the maximum sensing distance (related to sensing requirements), for example, for spontaneously generated and received sensing signals / reference signals, d max It represents the maximum distance from the signal transceiver point to the signal transmitter point; in some cases, the OFDM signal cyclic prefix CP can serve as the minimum guard interval.

[0118] Bandwidth: This parameter is inversely proportional to the distance resolution and can be obtained by c / (2Δd), where Δd is the distance resolution (related to perception requirements); and c is the speed of light.

[0119] Burst duration: This parameter is inversely proportional to the rate resolution (related to sensing requirements). It represents the time span of the signal and is primarily used to calculate the Doppler frequency offset. This parameter can be obtained by c / (2f cΔv) is calculated; where Δv is the velocity resolution; f c It is the carrier frequency of the signal;

[0120] Time domain interval: This parameter can be obtained by c / (2f) c v range ) is calculated; where, v range It is the maximum speed minus the minimum speed (related to sensing requirements); this parameter is the time interval between two adjacent signals;

[0121] Transmitted signal power, for example, taking a value every 2dBm from -20dBm to 23dBm;

[0122] Signal format, such as sounding reference signal (SRS), demodulation reference signal (DMRS), positioning reference signal (PRS), or other predefined signals, as well as related sequence format information;

[0123] Signal direction; for example, the direction of the sensed signal / reference signal or beam information;

[0124] Time resources, such as the time slot index or symbol index of the time slot where the sensing signal / reference signal is located; among them, time resources are divided into two types: one is one-time time resources, such as one symbol sending an omnidirectional signal; the other is non-one-time time resources, such as multiple sets of periodic time resources or discontinuous time resources (which may include start and end times), each set of periodic time resources sends a signal in the same direction, and the beam direction on different sets of periodic time resources is different.

[0125] Frequency resources include the center frequency of the signal, bandwidth, resource block (RB) or subcarrier, point A, starting bandwidth position, etc.

[0126] Quasi-co-location (QCL) relationships, for example, a sensing signal includes multiple resources, each resource is associated with a Synchronization Signal Block (SSB) QCL, and the QCL includes Type A, B, C or D;

[0127] Antenna configuration information.

[0128] The antenna configuration information includes at least one of the following:

[0129] Antenna element index or antenna port index used for transmitting and / or receiving sensed signals / reference signals;

[0130] Panel index + element index for transmitting and / or receiving sensing / reference signals;

[0131] The position information of the antenna elements relative to a local reference point on the antenna array used to transmit and / or receive sensed signals / reference signals (can be in Cartesian coordinates (x, y, z) or spherical coordinates). express);

[0132] The panel used to transmit and / or receive sensed / reference signals has its position information relative to a local reference point on the antenna array (which can be in Cartesian coordinates (x, y, z) or spherical coordinates). (represented), and the position information of the antenna elements within these selected panels used to transmit sensing signals relative to a unified reference point of the panel (e.g., the center point of the panel) (which can be expressed in Cartesian coordinates (x, y, z) or spherical coordinates). express);

[0133] The bitmap information of the antenna elements. For example, the bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving sensing / reference signals, and "0" to indicate that the element is not selected; or it uses "0" to indicate that the element is selected and "1" to indicate that the element is not selected.

[0134] The bitmap information of the array panel. For example, the bitmap uses "1" to indicate that the panel is selected for transmitting and / or receiving sensing / reference signals, and "0" to indicate that the array element is not selected; or it uses "0" to indicate that the array element is selected and "1" to indicate that the array element is not selected. And the bitmap information of the array elements within these selected panels;

[0135] Antenna element amplitude and phase gain information, i.e. antenna element pattern information.

[0136] The following description, in conjunction with the accompanying drawings, details the information sending method, information receiving method, apparatus, and related equipment provided in this application through some embodiments and application scenarios.

[0137] Referring to Figure 3, which is a flowchart of an information sending method provided in an embodiment of this application, the information sending method includes the following steps:

[0138] Step 101: The terminal performs a first channel measurement on the first signal sent by the network-side device to obtain the first target information;

[0139] Step 102: The terminal sends the first target information to the network-side device;

[0140] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

[0141] From the perspective of the spatial non-stationary characteristics of wireless channels, the first region can be understood as the visible region corresponding to the spatial non-stationary characteristics. That is, for the signal energy of a transmission path with spatial non-stationary characteristics, for the transmitting end, most of the signal energy comes from the antenna transmission within the visible region; for the receiving end, most of the signal energy comes from the antenna reception within the visible region.

[0142] In one embodiment, the first region may be the visible area of ​​the channel on the antenna array of at least one of the terminal and the network-side device.

[0143] In one embodiment, the first region can be a non-visible area of ​​the channel on the antenna array of at least one of the terminal and the network-side device, through which the visible area of ​​the antenna array can be determined.

[0144] It can be understood that, physically, the first region corresponds to a set / subset of antenna elements in an antenna array; logically, in a communication system, the first region corresponds to a set / subset of antenna ports in a set of antenna ports. Each transmission path in a wireless channel may have independent spatial non-stationary characteristics; that is, the terminal performing the first channel measurement may obtain one or more different first regions, corresponding to one or more different spatial non-stationary transmission paths.

[0145] It is understandable that a spatially stationary transmission path can be regarded as a special case of spatial non-stationarity. In this case, the first region / visible region includes the entire region of the antenna array, or corresponds to the complete set of antenna elements of the antenna array, or corresponds to the complete set of antenna ports.

[0146] It is understandable that the spatial non-stationary characteristics of wireless channels are related to the area of ​​the antenna array, the operating frequency band, and the physical environment. Generally, the antenna array area of ​​network-side devices is larger than that of terminal-side devices; therefore, the spatial non-stationary characteristics of network-side devices are more likely to occur in communication scenarios. In some embodiments described in this paper, it is assumed that the first region is the visible area of ​​the network-side device.

[0147] In one implementation, the first region may be a subset of the antenna port set of at least one of the network-side devices and the terminal.

[0148] In one implementation, the first region corresponds to a set of ports.

[0149] The first target information can be used to perform a target operation; the target operation includes at least one of the following: a communication transmission operation; and a second channel measurement.

[0150] The term "first channel measurement" can also be expressed as "channel measurement." The terms "first" and "second" in "first channel measurement" and "second channel measurement" are used only to distinguish between the two channel measurements. The first channel measurement can refer to a downlink channel measurement, and the second channel measurement can refer to a downlink channel measurement.

[0151] It should be noted that when performing the first channel measurement, the network-side device uses all antenna ports to transmit the first signal; while when performing the second channel measurement, the network-side device uses the antenna port / physical antenna corresponding to the first area to transmit the second signal to avoid energy waste; optionally, the network-side device uses communication precoding / beamforming to transmit the second signal based on the antenna port / physical antenna corresponding to the first area.

[0152] Furthermore, the purpose of the first channel measurement is to determine the visible area (such as the first area) of the terminal and / or network-side equipment; the purpose of the second channel measurement is to obtain the channel estimate corresponding to the first area as required for subsequent communication services. The signal direction of the first channel measurement is sent by the network-side equipment and received by the terminal; the signal direction of the second channel measurement can be sent by the network-side equipment and received by the terminal, or it can be sent by the terminal and received by the network-side equipment.

[0153] In one embodiment, after the terminal performs a first channel measurement and obtains first target information, the terminal can perform communication transmission operations based on the first target information. Specifically, the network-side device determines the precoding vector or precoding matrix used for communication transmission with the terminal based on the first target information. The first target information includes a set of precoding codewords and one or more first regions, and the first regions are associated with one or more precoding codewords in the set of precoding codewords.

[0154] In one embodiment, after the terminal performs a first channel measurement to obtain first target information, the terminal can perform a second channel measurement based on the first target information. Specifically, the network-side device determines a subset of antennas or antenna ports for use by the network-side device in power-saving mode based on the first target information. The terminal performs a second channel measurement on the reference signal transmitted by the subset of antennas or the subset of antenna ports to obtain and feed back channel state information.

[0155] In one embodiment, after the terminal performs a first channel measurement and obtains first target information, the terminal can send a second signal for a second channel measurement. Specifically, the terminal determines a first region of itself through the first channel measurement; the terminal sends a second signal, such as SRS or PRACH, at the antenna port of the first region; and the network-side device receives the second signal to determine the Channel Information (CSI) under non-stationary spatial conditions of the terminal (e.g., determining the downlink beamforming vector under non-stationary spatial conditions based on channel reciprocity).

[0156] In this embodiment, the network-side device or terminal can perform communication transmission operations through the visible area, taking into account the spatial non-stationarity of the channel, thereby improving transmission performance and reducing power consumption; or, it can perform channel measurement operations through the visible area, taking into account the spatial non-stationarity of the channel, thereby improving measurement accuracy and reducing power consumption.

[0157] Optionally, the first target information includes at least one of the following:

[0158] First information, which is used to characterize the shape of the first region;

[0159] The second information is used to characterize the physical location of the units constituting the first region;

[0160] The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units;

[0161] The fourth information is used to identify the first region;

[0162] The fifth piece of information is the precoded information used by the network-side device for communication transmission;

[0163] The relationship between the fourth information and the fifth information.

[0164] The first information can be used to describe the shape of the first region. This embodiment does not limit the specific form of the first information. It can be understood that the first region can be the visible area of ​​a scatterer or its corresponding propagation path, that is, the area in the antenna array where the signal energy is relatively strong from the corresponding propagation path of the scatterer. For example, most of the energy of the path of the scatterer is contributed by the signal from the antenna port within the first region; or, the first region can be a non-visible area of ​​a scatterer or its corresponding propagation path, equivalent to a complementary region to the visible area.

[0165] The shape representation of the first region can be: a bitmap-based representation (where "1" represents the area within the first region and "0" represents the area outside the first region; each bit in the bitmap can represent an antenna element, an antenna port, or an antenna subarray; the granularity of the antenna array represented by the information bits is predefined by the protocol or configured by the network); or a direct description of a single pattern (assuming the visible area is a rectangle, with horizontal and vertical lengths, and horizontal and vertical offsets equivalent to an array reference point; the reference point can be the upper left antenna element); or a combined description of multiple patterns (the combination of multiple pattern information constitutes the first region; each pattern information includes the index of the 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 or non-visual area. It can be predefined by the protocol, with the first region being a visible area by default; it can also be configured by the network as either a visible or non-visual area; or, based on the first channel measurement results, the terminal can choose to feed back the first region as either a visible or non-visual area, feeding back both the shape and meaning of the first region.

[0166] Optionally, the first information includes a first index, which is an index of one or more basic units associated with the first region.

[0167] The first region may be composed of target units, which may be basic units, or the target units may have a transformation relationship with the basic units. When the target unit is a basic unit, the first index may be the index of the basic unit; when the target unit and the basic unit have a transformation relationship, the first index may be the index of the basic unit that has a transformation relationship with the target unit.

[0168] In this embodiment, the first information includes a first index, which is an index of the basic units associated with the first region. The basic units associated with the first region can be determined through the first index, thereby revealing which basic units constitute the first region.

[0169] In one implementation, the first information can be a first parameter, which can be a first index or a combination of first indices; or, descriptive information about the basic features of the shape of the first region (e.g., the length and width of a rectangle). The smallest descriptive 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 several adjacent antenna elements or ports, and the subarray division method can be configured by the base station or predefined by the protocol.

[0170] In one implementation, the first index can be understood as an index of basic units used to describe the visible area on the antenna array of at least one of the network-side devices and terminal devices for a channel or channel multipath.

[0171] Optionally, the basic unit includes at least one of the following:

[0172] (1) First unit: A rectangular unit used to describe the corresponding two-dimensional visible area on a two-dimensional antenna array. For example, “2×2” can be used to represent a subarray of the first signal transmitting array or receiving array whose visible area of ​​the channel or channel multipath covers the 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 subarray corresponding to the visible area further contains multiple smaller subarrays; or, for example, “N×M” can be used to represent a subarray of the first signal transmitting array or receiving array whose visible area of ​​the channel or channel multipath covers the 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.

[0173] (2) Second unit: A linear unit used to describe the corresponding one-dimensional visible area on the one-dimensional antenna array region. For example, "1×2" can be used to represent a subarray of the first signal transmitting array or receiving array whose visible area of ​​the channel or channel multipath covers the first signal transmitting array or receiving array, and the subarray consists of one row of two columns of antenna elements or one row of 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.

[0174] It should be noted that if an antenna port is connected to a set of physical antenna elements (hereinafter collectively referred to as subarrays), then the visible area described by the basic unit is the area corresponding to the set of physical antenna elements or subarrays connected to the antenna port in the corresponding dimension.

[0175] Specifically, Figure 4 shows several typical examples of basic units and examples of the first index values ​​corresponding to these typical basic units. It should be noted that the types of basic units are not limited to those listed in Figure 4, and may include many more basic units of different shapes. In this embodiment, the first index is used to establish an association between predefined or preconfigured basic units and the first region, and the shape of the first region is indicated by sending first target information. For example, the first region may consist of one or more basic units corresponding to the first index.

[0176] The units constituting the first region may include basic units or units that have a transformation relationship with basic units. The units constituting the first region may be called target units. A target unit may be the basic unit corresponding to the first index, or a target unit may be a unit that has a transformation relationship with the basic unit corresponding to the first index; or, the target unit may be predefined or preconfigured through a protocol.

[0177] The second information is used to characterize the physical location of the unit constituting the first region. In one embodiment, the method for characterizing the physical location of the unit constituting the first region can be based on a reference point and an offset to jointly characterize the physical location of the basic unit: the reference point can be any physical location specified by the antenna array, or a physical antenna location, or an antenna port location (e.g., the geometric center of the antenna array panel, or the physical antenna location at the lower left corner of the antenna array, or the port location at the lower left corner of the port array corresponding to the antenna port); the offset can be represented by a combination of the geometric distance from the reference point, or the physical antenna spacing and the physical antenna index.

[0178] The physical location of the unit constituting the first region can refer to the physical location on the panel of the antenna array, or the location in the port array corresponding to the antenna port.

[0179] Optionally, the second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

[0180] In this embodiment, the target unit is indicated by the second index at the physical location or logical location of the antenna port of the terminal antenna array. The actual physical location of the target unit in the antenna array can be quickly determined by the second index, thereby obtaining the physical location information of the target unit constituting the first region.

[0181] In one implementation, the second information can be a second index. The second index can be understood as a location index of the basic unit (or, more specifically, an index of the physical antenna or subarray reference point of the basic unit), used to indicate the physical location of the visible area corresponding to the first index within the first signal transmitting array (or receiving array). That is, the second index indicates the correspondence between any pre-specified antenna port within the visible area corresponding to the basic unit and the physical antenna elements or subarrays of the actual physical antenna array (including the transmitting array and receiving array). The subarray reference point can be any one physical antenna specified on the subarray.

[0182] It should be noted that the second index can be understood as the position index of the physical antenna element or subarray, which is bound to 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 related first target information content can be determined.

[0183] The following example illustrates the second index: Assume the transmitting array (and the receiving array similarly) has a total of 32 physical antenna elements, arranged in a 4x8 array. As shown in Figure 5, each square represents one physical antenna element (or one subarray), and the numerical index on it indicates the physical antenna (or subarray) index. If the physical location of a basic unit is represented by the position of the top-left element of the visible area corresponding to the basic unit (or by the position of the first element on the left if it is a line unit), then the second index value of a "2×2" rectangular unit (assuming its first index value is 4) is 1; the second index value of a "2×3" rectangular unit (assuming its first index value is 7) is 12; and the second index value of a "1×3" rectangular unit (assuming its first index value is 8) is 30. Since there is a one-to-one mapping relationship between the physical antenna (or subarray) index and the physical antenna (or subarray) (position coordinates), by indicating the first index {4,7,8} and the second index {1,12,30} of the corresponding basic unit, the network-side device or terminal can obtain the specific physical location of the channel multipath or the visible area of ​​the channel of the transmitting array (the same applies to the receiving array).

[0184] It is understandable that the shape and position of a first region can be determined using the first parameter and the second index, but it is not limited to this method. Other methods can also be used to determine the first region: for example, a bitmap can be used to describe the first region. When the number of antennas or antenna subarrays is relatively small, a bitmap can be used to efficiently describe the first region.

[0185] The third information can be a third index, used to indicate the rotation state of the associated basic unit, or to indicate the horizontal or vertical flip state of the basic unit (flipping refers to the flipping of the geometry of the basic unit). Table 1 gives an example of an optional third index value and its association with the rotation or flip state of the basic unit.

[0186] Table 1

[0187] The fourth information can be an index, bitmap information, or visible area description information, etc. This embodiment does not limit the specific form of the fourth information.

[0188] Optionally, the first target information includes the fourth information, which includes one or more fourth indices, each of which corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

[0189] In one embodiment, the first target information includes the fourth information, and the fourth information includes one or more indexes of the first region;

[0190] The first target information also includes at least one of the following:

[0191] The first information corresponding to the index of each of the first regions;

[0192] The second information corresponding to each index of the first region;

[0193] The third information corresponding to each index of the first region;

[0194] The fifth information corresponding to each index of the first region.

[0195] Among them, different first regions can correspond to different first, second, third, or fifth information.

[0196] For example, the fourth information includes the index of the first region A and the index of the second region B, and the first target information further includes: first information, second information, third information or fifth information corresponding to the index of the first region A; and first information, second information, third information or fifth information corresponding to the index of the first region B.

[0197] In one embodiment, the fourth information can be a visible area index, used to distinguish the visible area on the antenna array of at least one of the terminal and network side devices for a component or group of components in the channel PMI or the channel multipath. Different fourth index values ​​correspond to different visible areas, that is, the fourth index values ​​are different for different visible areas.

[0198] It should be noted that the fourth index can be equivalent to the index of the first index set. It should also be pointed out that if one or more spatially discontinuous visible regions have the same fourth index value, then these one or more visible regions are considered to belong to the same visible region. In other words, the same visible region can be spatially discontinuous. For the same visible region, the channel parameters and multipath parameters of the corresponding channel are the same, or the corresponding precoding information is the same.

[0199] It should be noted that the fourth information can implicitly identify or indicate the first region. For example, when the first target information includes multiple first region information, the first target information includes at least one of the first, second, and third information, combined with at least one of the fifth, sixth, first measurement value, and second measurement value. One implementation is that the first target information can be a structure that arranges the above combinations in a certain order to represent / indicate multiple different first regions. In this form, not only is the first region implicitly indicated, but the association between the first region and the channel information (i.e., the fifth, sixth, first measurement value, and second measurement value, or at least one) is also indicated (i.e., the seventh information).

[0200] The fifth information can be a vector or a vector index, etc. For example, the fifth information includes: a precoding matrix index (PMI) or a precoding vector merging 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 network-side device and informed to the terminal in advance. The terminal feeds back the fifth information from the network-side device, i.e., the precoding vector index, the precoding matrix index (PMI), the precoding vector merging coefficient index, etc. The network-side device determines the precoding vector used for communication transmission through the predefined precoding codebook; or, the fifth information may include: a precoding vector (referring to directly transmitted precoding weights) or a precoding matrix (referring to directly transmitted precoding weights). The fifth information can be the precoding information used by the network-side device for communication transmission in the first area. In one embodiment, the fifth information can be a first vector, which is a vector calculated from at least one channel multipath complex amplitude measurement value in the second measurement quantity, and at least one multipath parameter information associated with them (including multipath delay, multipath angle, near and far field information, first hop or last hop multipath distance, etc.). Specifically, a set of steering vectors (at least one) is first calculated based on the parameter information of the at least one multipath, and then a first vector is obtained by weighted merging based on the complex amplitude of the at least one channel multipath; the first vector is a precoding vector used by the network device for communication transmission.

[0201] The association between the fourth information and the fifth information can refer to the association (or mapping) between the fourth index and at least one vector in the fifth message. Alternatively, the association between the fourth information and the fifth information can refer to the association (or mapping) between the first vector and at least one fourth index.

[0202] By estimating the channel parameters at the receiver, the spatial non-stationary measurement information of the channel at the transmitter is indicated. This ensures that the CSI reporting overhead is small while maintaining the accuracy of channel information reporting. At the same time, it enables the transmitter to make full use of the diversity gain brought by spatial non-stationarity, realize multi-stream transmission, and improve the overall transmission performance of the system.

[0203] In this embodiment, for the irregular visible region of a spatially non-stationary channel, a first signal transmitting node transmits a first signal. After performing channel measurements, a first signal receiving node determines a channel visible region (such as a first region) that constitutes at least one of the first signal transmitting node and the first signal receiving node. This visible region can be represented by predefined basic units or combinations thereof, or by bit maps, etc. The aforementioned channel visible region information is then sent to the first signal transmitting node to determine its precoding. The precoding of the first signal transmitting node is represented as a combination of the first region and a precoding vector. The relevant information of the basic unit includes at least the basic unit index and the association between the basic unit and the measured quantities of the channel measurement. The measured quantities of the channel measurement include at least one of the channel large-scale parameters, small-scale parameters, and multipath parameters.

[0204] The first signal transmitter is the base station (BS), which includes macro cell base stations, micro cell base stations, and indoor small base stations. The first signal receiver can be another BS or user equipment (UE).

[0205] In this embodiment, the terminal performs a first channel measurement on a first signal sent by a network-side device to obtain first target information; the terminal sends the first target information to the network-side device; the first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal. In this way, signals can be transmitted or received through the first region, thereby reducing the power consumption of the device.

[0206] Optionally, the first target information includes at least one of the following:

[0207] First measurement quantity (or expressed as first measurement quantity value, or measurement value of first measurement quantity); Second measurement quantity (or expressed as second measurement quantity value, or measurement value of second measurement quantity); Sixth information; Second parameter configuration information; Relationship between first information and second information; Relationship between first information and third information; Relationship between first information and fourth information; Relationship between first information and at least one of the first measurement quantities; Relationship between first information and at least one of the second measurement quantities; Relationship between first information and at least one of the fifth information; Relationship between first information and at least one of the sixth information; Relationship between fourth information and at least one of the first measurement quantities; Relationship between fourth information and at least one of the second measurement quantities; Relationship between fourth information and at least one of the sixth information; Relationship between first information and parameter configuration information corresponding to the first channel measurement; Relationship between fourth information and parameter configuration information corresponding to the first channel measurement; Seventh information;

[0208] Wherein, the first measurement quantity is a measurement quantity related to communication services;

[0209] The second measurement includes channel parameter information obtained based on channel estimation;

[0210] The second parameter configuration information is used for communication transmission operations or second channel measurements;

[0211] The sixth piece of information is the pre-coded information used by the terminal for communication transmission;

[0212] The seventh piece of information is used to characterize the association between the first region and the channel information.

[0213] The first measurement quantity can be a measurement quantity related to communication services, as described in the relevant description of the first measurement quantity in Explanation 1 above, and will not be repeated here.

[0214] The second measurement quantity includes channel parameter information obtained from channel estimation or parameter estimation based on channel estimation, as well as channel multipath parameter information, as described in the relevant description of the second measurement quantity in Explanation 2 above, and will not be repeated here. The second measurement quantity can refer to channel information, including channel parameter information and channel multipath parameter information.

[0215] The sixth information can be a vector or a vector index, etc. For example, the sixth information includes: a precoding vector index, a precoding matrix index (PMI), or a precoding vector merging 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 network-side device and informed to the terminal in advance. The terminal feeds back the sixth information from the network-side device, i.e., the precoding vector index, the precoding matrix index (PMI), the precoding vector merging coefficient index, etc. The network-side device determines the precoding vector used by the terminal for communication transmission based on the predefined precoding codebook; or, the sixth information may include: a precoding vector (referring to directly transmitted precoding weights) or a precoding matrix (referring to directly transmitted precoding weights), etc. In one embodiment, the sixth information can be a second vector, which is a vector calculated from at least one channel multipath complex amplitude measurement value in the second measurement quantity, and at least one multipath parameter information associated with them (including multipath delay, multipath angle, near and far field information, first hop or last hop multipath distance, etc.). Specifically, a set of steering vectors (at least one) is first calculated based on the parameter information of the at least one multipath, and then a second vector is obtained by weighted merging based on the complex amplitude of the at least one channel multipath; the second vector is the precoding vector used by the terminal for communication transmission.

[0216] The second parameter configuration information can be used for communication transmission operations or second channel measurement. The content of the second parameter configuration information is described in the relevant description of parameter configuration information in Explanation 3 above, and will not be repeated here.

[0217] It should be noted that the first target information may further include at least one of the following: the relationship between the second information and the third information; the relationship between the second information and the fourth information; the relationship between the second information and at least one of the first measurement quantities; the relationship between the second information and at least one of the second measurement quantities; the relationship between the second information and at least one fifth information; the relationship between the second information and at least one sixth information; the relationship between the second information and the parameter configuration information corresponding to the first channel measurement; the relationship between the third information and the fourth information; the relationship between the third information and at least one of the first measurement quantities; the relationship between the third information and at least one of the second measurement quantities; the relationship between the third information and at least one fifth information; the relationship between the third information and at least one sixth information; the relationship between the third information and the parameter configuration information corresponding to the first channel measurement; and so on.

[0218] The association between the first information and the second information can refer to the association between the first index and the second index (or be described as a mapping relationship); the association between the first index and the second index can be used to indicate the position of the basic unit corresponding to the first index.

[0219] The association between the first information and the third information can refer to the association between the first index and the third index (or be described as a mapping relationship); the association between the first index and the third index can be used to indicate the rotation or flipping state of the basic unit corresponding to the first index.

[0220] The relationship between the first information and the fourth information can refer to the relationship between the first index and the fourth index (or be described as a mapping relationship); the relationship between the first index and the fourth index can be used to indicate which visible area the basic unit corresponding to the first index belongs to.

[0221] The association between the first information and at least one of the first measurements can refer to the association between the first index and at least one of the first measurements (or be described as a mapping relationship).

[0222] The association between the first information and at least one of the second measurements can refer to the association between the first index and at least one of the second measurements (or be described as a mapping relationship).

[0223] The association between the first information and at least one fifth information can refer to the association between the first index and at least one first vector (or be expressed as a mapping relationship).

[0224] The association between the fourth information and at least one of the first measurements can refer to the association between the fourth index and at least one of the first measurements (or be described as a mapping relationship).

[0225] The association between the fourth information and at least one of the second measurements can refer to the association between the fourth index and at least one of the second measurements (or be expressed as a mapping relationship).

[0226] The association between the first information and the parameter configuration information corresponding to the first channel measurement can refer to the association (or mapping) between the first index and the parameter configuration information corresponding to the first channel measurement. The content of the parameter configuration information corresponding to the first channel measurement is described in the relevant section of Explanation 3 above, and will not be repeated here. The association between the first index and the parameter configuration information corresponding to the first channel measurement can include the association between the first index and at least one resource or resource set used for the first channel measurement; the resource or resource set includes time-domain resources or resource sets, frequency-domain resources or resource sets, and time-frequency resources or resource sets.

[0227] The association between the fourth information and the parameter configuration information corresponding to the first channel measurement can refer to the association (or mapping) between the fourth index and the parameter configuration information corresponding to the first channel measurement. The content of the parameter configuration information corresponding to the first channel measurement is described in the relevant section of Explanation 3 above, and will not be repeated here. The association between the fourth index and the parameter configuration information corresponding to the first channel measurement can include the association between the fourth index and at least one resource or resource set used for the first channel measurement; the resource or resource set includes time-domain resources or resource sets, frequency-domain resources or resource sets, and time-frequency resources or resource sets.

[0228] Specifically, the association (or mapping relationship) between at least one of the first and fourth indices and at least one of the first and second measurements can be represented by a mapping table. Table 2 provides an example mapping representation to illustrate the association between a portion of the first index and a portion of the second measurement. It should be noted that in actual information transmission, the above mapping relationship can be represented by multiple mapping tables, each of which can be a sub-table of Table 2.

[0229] Table 2

[0230] Complex Amplitude refers to the complex amplitude. Delay is the time delay.

[0231] Specifically, the number of the first vector (or first vector index), the second vector (or second vector index), or the channel estimation matrix included in the first target information can be greater than one. The association between at least one of the first index and the fourth index and the first vector can be represented by a mapping table. Taking the association between the fourth index and the first vector (or expressed as a mapping relationship) as an example, Table 3 gives an example of a mapping representation.

[0232] Table 3

[0233] Specifically, the association between the first index and at least one of the second and third indices can be represented by a mapping table. One first index can be associated with multiple second indices, and one second index can also be associated with multiple first indices; similarly, one first index can be associated with multiple third indices, and one third index can also be associated with multiple first indices. Table 4 provides an example of the mapping relationship between the first index and the second and third indices.

[0234] Table 4

[0235] Specifically, the mapping relationship between at least one of the first index and the fourth index and the first channel measurement resource or resource set can be represented by a mapping table. Taking the mapping relationship between the fourth index and the first channel measurement resource or resource set as an example, Table 5 provides an example of a mapping representation.

[0236] Table 5

[0237] It should be noted that in actual information transmission, multiple mapping tables can be transmitted using the above examples (Tables 2-5), or an integrated mapping table can be transmitted, which contains all the above mapping relationship information.

[0238] The seventh information can indicate a combination of the first region or a set of regions of the first region and channel information. For example, the seventh information can indicate a set of PMI vectors and a first region or the set of regions, as well as the association relationship, or combination of association relationships, between each region in the first region or the set of regions and a specified PMI vector or subset of vectors in the set of PMI vectors; or, for another example, a set of cluster parameters and a first region or a set of regions of the first region, as well as the association relationship, or combination of association relationships, between each region in the first region or the set of regions and a specified cluster or subset of clusters in the set of cluster parameters.

[0239] It should be noted that the seventh information can implicitly identify or indicate the association between the first region and the channel information. For example, when the first target information includes multiple first region information, the first target information includes at least one of multiple first, second, and third information, combined with at least one of fifth, sixth, first measurement value, and second measurement value. One implementation is that the first target information can be a structure that arranges the above combinations in a certain order to represent / indicate multiple different first regions. In this form, not only is the first region implicitly indicated, but the association between the first region and the channel information (i.e., at least one of the fifth, sixth, first, and second measurement values) is also indicated.

[0240] In this embodiment, through the aforementioned first target information, the network-side device and the terminal can obtain the visible area of ​​the channel on the antenna array of at least one of the terminal and the network-side device, and then perform communication transmission operations or second channel measurements through the relevant information on the visible area of ​​the channel on the antenna array of at least one of the terminal and the network-side device.

[0241] Optionally, the basic unit is predefined by the protocol or configured by the network-side device.

[0242] The number of basic units can be one or more. A basic unit can be a set of basic patterns determined by the antenna port configuration of the base station and the number of horizontal and vertical ports (parameters N1 and N2). For example, a predefined table or scaling factors for N1 and N2.

[0243] Optionally, the basic unit includes at least one of the following:

[0244] A two-dimensional visible region used to characterize the two-dimensional antenna array region;

[0245] A one-dimensional visible region used to characterize a one-dimensional antenna array region.

[0246] Optionally, before the terminal performs a first channel measurement on the first signal sent by the network-side device, the method further includes:

[0247] The terminal receives second target information sent by the network-side device, the second target information including at least one of the following:

[0248] Location information of at least one of the network-side devices and the terminal;

[0249] At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement;

[0250] The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0251] The location information of at least one of the network-side devices and the terminal helps reduce the complexity of channel parameter estimation during signal processing at the terminal during the first channel measurement. The terminal's location information can be determined through the NR positioning process. The core network device acquires the terminal's location information and then transmits it to the terminal via a network-side device, such as a base station. Alternatively, the network-side device can perform wireless sensing on the terminal to determine its location information.

[0252] The first parameter configuration information for the first channel measurement includes at least one of the network-side device and the terminal. This parameter configuration information is described in the relevant section of Explanation 2 above and will not be repeated here. The parameter configuration information for the first channel measurement may include antenna array configuration information for the first channel measurement.

[0253] The target parameter configuration information may refer to the target parameter configuration information of the UE, that is, the signal processing method and corresponding parameter configuration information used by the UE to obtain at least one of the first measurement quantity, the second measurement quantity, and the first vector.

[0254] Optionally, the first parameter configuration information includes at least one of the following:

[0255] Configuration information of the first signal;

[0256] Configuration information of the antenna array or antenna port used for the first channel measurement;

[0257] The number of the first region or the first threshold value;

[0258] The precision of the first region or the second threshold value;

[0259] Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

[0260] The configuration information of the first signal may include at least parameters such as the time-frequency resource configuration or sequence generation parameters of the first signal.

[0261] The configuration information of the antenna array or antenna port used for the first channel measurement may include at least one of the following:

[0262] Antenna port topology (i.e., the topological information of the physical subarray preset reference point or physical antenna element connected to the antenna port in physical space), antenna port index, number of antenna ports, association between antenna ports and physical antenna elements or physical subarrays, physical subarray index, number of physical subarrays, number of physical antenna elements inside the physical subarray, spacing between physical antenna elements inside the physical subarray (including at least one of horizontal and vertical spacing), index of physical antenna elements inside the physical subarray (e.g., including: index of specified positions such as edge, end, and center of the physical subarray, or index of all physical antenna elements inside the physical subarray), physical subarray array information (e.g., indicating that the physical subarray is at least one of linear array, rectangular area array, circular array, cylindrical array, etc.), orientation of physical antenna array (or panel), aperture of physical antenna array (including aperture of physical subarray or aperture of the entire physical antenna array), polarization characteristics of physical antenna, gain of physical antenna elements (including antenna gain in different directions, i.e., 2D / 3D antenna pattern).

[0263] It should be noted that the physical antenna element index within a physical subarray can be an absolute index, meaning that different physical antenna elements in different physical subarrays have a unique index; or it can be a relative index, meaning that different physical subarrays use a unique index, different physical antenna elements within the same physical subarray have unique indexes, but different physical antenna elements within different subarrays may have the same index value, meaning that physical antenna elements within different subarrays use the same set of index values.

[0264] For example, suppose there are two physical subarrays, each containing four physical antenna elements. If using absolute indexing, the physical antenna indices in the first physical subarray are 0, 1, 2, 3, and in the second physical subarray are 4, 5, 6, 7. If using relative indexing, the index of the first physical subarray is 0, the index of the second physical subarray is 1, and the physical antenna indices within each physical subarray are all 0, 1, 2, 3. The physical antennas are uniquely identified by combining the physical subarray index with the physical antenna index.

[0265] In one implementation, the number of first regions included in the first target information does not exceed a first threshold value. For example, for PMI feedback, the number of first regions does not exceed the number of PMI feedback codewords; or, by default, the number of first regions that the terminal can feed back or the first threshold value is determined according to a protocol predefined value. For instance, if the network-side device indicates that a first region measurement is required, the terminal defaults to a first region number of 1.

[0266] The precision of the first region may refer to the requirement for the number of antennas or antenna ports corresponding to the first region.

[0267] In one implementation, the number of antennas or ports corresponding to the first region does not exceed a second threshold, or is greater than a second threshold.

[0268] The number of the first regions or a first threshold value, or the precision of the first regions or a second threshold value, can serve as the precision requirement for the visible area indicated by the terminal. The precision requirement can be limiting information on a defined first index set, such as limiting the first index set indicated by the UE.

[0269] For example, the BS can directly indicate the first set of indexes available to the UE. For example, Table 1 indicates that the UE can only use the first index subset {1,2,4} for visual area description; (2) the visual area description precision is graded, 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 BS directly indicates the precision grade used by the UE.

[0270] For example, the first threshold value can be the maximum number of first regions to be fed back. The terminal instructs the network-side device to set the first threshold value X (X is an integer greater than or equal to 0), and the number of first regions fed back by the network-side device is no greater than X. The algorithm on the network-side device side determines which first regions to feed back information.

[0271] The first threshold value can also be the power value (or latency value, angle value, etc.) of the strongest path / cluster corresponding to the first region. The network-side device reports the first region where the power of the strongest path / cluster is greater than the first threshold (or the first region where the latency / angle is greater than / less than the threshold).

[0272] 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 network-side device feeds back the first index, it can only feed back the first index value corresponding to the basic unit that satisfies the minimum granularity.

[0273] In this embodiment, the first parameter configuration information includes antenna array configuration information for the first channel measurement, thereby enabling the antenna array configuration for the terminal to receive the first signal to be determined through the antenna array configuration information, or informing the terminal network-side device of the antenna array configuration for sending the first signal.

[0274] Optionally, the target parameter configuration information includes at least one of the following:

[0275] Indicative information used to indicate parameter estimation algorithms;

[0276] Judgment information in the first region;

[0277] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0278] The indication information used to indicate the parameter estimation algorithm may include at least one of the following:

[0279] Indicative information used to indicate the type of parameter estimation algorithm;

[0280] The dimensionality type or size information of the input data for parameter estimation algorithms;

[0281] The computation window information of the parameter estimation algorithm;

[0282] Threshold information for parameter estimation algorithms;

[0283] Information on the search step size or search interval of the parameter estimation algorithm.

[0284] The indication information used to specify the parameter estimation algorithm type can be either the parameter estimation algorithm type itself or a parameter estimation algorithm type index. The parameter estimation algorithm types include Fast Fourier Transform (FFT) based, Beamformer, Subspace based, Expectation-Maximization (EM) based, Compressive Sensing (CS) based, etc. A set of index values ​​can be defined to correspond one-to-one with the above parameter estimation algorithm types; when actually sending the second target information, only the corresponding parameter estimation algorithm type index needs to be sent.

[0285] The dimension type or size information of the input data for the parameter estimation algorithm can be the matrix dimension or size information of the parameter estimation input data. Specifically, it represents the number or size of the dimensions of the channel estimation matrix (or channel state information matrix, or channel transfer function matrix) used for the first parameter estimation, or the covariance matrix or correlation matrix of the channel estimation matrix. The required input data matrix dimension may differ for different parameters to be estimated; therefore, this information is related to at least one of the first measurement, the second measurement, and the first vector.

[0286] For example, to estimate the path loss of the second measurement, the dimension of the input data matrix can be "1×1×f". num ", where f num The number of frequency points (frequency domain resources) for channel estimation, "1×1×f num The first dimension is the receive array dimension, where "1" indicates that the number of receive antennas is 1. Similarly, the second dimension is the transmit array dimension, where "1" indicates that the number of transmit antennas is 1. That is, the path loss is calculated from the channel estimation vector of one of the SISO sub-channels between the UE and BS. For example, to estimate the second measurement quantity, the multipath departure azimuth angle, the input data dimension can be "4×16×f". num The number “4” indicates that there are 4 receiving antennas and the number “16” indicates that there are 16 transmitting antennas. That is, the multipath departure azimuth angle is calculated from the channel estimation matrix of one of the MIMO sub-channels between the UE and BS, which consists of 16 transmitting antennas and 4 receiving antennas.

[0287] The calculation window information of the parameter estimation algorithm may include at least one of the following: the calculation window size of the BS-side transmitting array during a single parameter estimation, the calculation window size of the UE-side receiving array during a single parameter estimation, the calculation window interval of the BS-side transmitting array during multiple consecutive parameter estimations, the calculation window interval of the UE-side receiving array during multiple consecutive parameter estimations, the starting position of the calculation window of the BS-side transmitting array during multiple consecutive parameter estimations, and the starting position of the calculation window of the UE-side receiving array during multiple consecutive parameter estimations.

[0288] When the array is a two-dimensional array, the size of the calculation window includes the size in the horizontal direction and the size in the vertical direction, the interval of the calculation window includes the interval in the horizontal direction and the interval in the vertical direction, and the starting position of the calculation window includes the starting position in the horizontal direction and the starting position in the vertical direction.

[0289] Taking the estimation of the multipath departure azimuth angle of the second measurement as an example again, the input data dimension is "4×16×f num The number "16" indicates that the number of transmit antennas is 16. Therefore, the calculation window size of the BS-side transmit array can be "1×16", where the number "1" corresponds to the number of antennas in the vertical direction of the transmit array being 1, and the number "16" corresponds to the number of antennas in the horizontal direction of the transmit 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 BS-side transmit array can also be "4×4", that is, the subarray corresponding to the calculation window is a planar array with 4 rows and 4 columns. In this example, the calculation window of the UE-side receive array can be "1×4" or "2×2".

[0290] Furthermore, assuming the BS transmission array is a 1x256 linear array, when the UE performs multiple consecutive parameter estimations, if the p-th calculation window corresponds to physical antenna indices n to n+15, and its nearest neighboring p+1-th calculation window corresponds to physical antenna indices n+m to n+m+15, then the calculation window interval is m. If assuming the BS transmission array is a 16x16 linear array, and the p-th calculation window corresponds to physical antenna horizontal indices n1 to n1+4 and vertical indices n2 to n2+4, and its nearest neighboring p+1-th calculation window corresponds to physical antenna horizontal indices n1+m1 to n1+m1+4 and vertical indices n2+m2 to n2+m2+4, then the horizontal interval of the calculation window is m1, and the vertical interval is m2.

[0291] Among them, the threshold information of the parameter estimation algorithm can be parameter estimation threshold information, that is, various possible threshold values ​​used by the above algorithm, including: iteration end decision threshold value, outlier determination threshold value, decision threshold value used for the association of the same estimation target data when estimating parameters multiple times in a row, etc.

[0292] The search step size or search interval information of the parameter estimation algorithm can be the minimum search interval when the algorithm searches for spectral peaks, as well as the starting position information of the search interval.

[0293] The decision information for the first region can be visible region decision information, which can be used to determine and divide the visible region using a first or second measurement. For example, the visible region decision information can indicate which first or second measurements are used to divide the visible region, and the corresponding decision threshold value. It should be noted that the visible regions corresponding to different first or second measurements may differ.

[0294] In this embodiment, through the above-mentioned target parameter configuration information, the network-side device can perform a first channel measurement on the terminal configuration to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information signal processing related parameters, so that the terminal can obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information according to the configuration of the network-side device.

[0295] Optionally, before the terminal performs a first channel measurement on the first signal sent by the network-side device, the method further includes:

[0296] The terminal sends third target information to the network-side device, and the third target information includes at least one of the following:

[0297] The location information of the terminal;

[0298] The physical antenna array information of the terminal;

[0299] The status information of the terminal;

[0300] The communication capability information of the terminal;

[0301] The terminal can be used to communicate resource information;

[0302] The terminal's computing power information.

[0303] The physical antenna array information of the terminal may include antenna panel orientation, array type, number of antennas (including horizontal and vertical directions), array aperture, antenna polarization characteristics or element gain and directivity characteristics.

[0304] The terminal's status information may include information such as movement speed, movement direction, and the time period during which it remains stationary or in motion.

[0305] The terminal's communication capability information may include the terminal's communication coverage area, the maximum bandwidth available for communication services, and the maximum number of antenna ports available for communication services.

[0306] The resource information that the terminal can use for communication can refer to the resource information that the terminal can currently use for communication (including time resources (number of symbols, number of time slots, number of frames, etc.), frequency resources (number of Resource Blocks (RBs), number of Resource Elements (REs), total bandwidth, available frequency band locations, etc.), antenna resources (number of antennas / antenna subarrays), orthogonal code resources (orthogonal code length and quantity), etc.).

[0307] The terminal's computing power information may refer to the highest configuration information of the target parameters supported by the terminal, including at least one of the following: the supported parameter estimation algorithm type or parameter estimation algorithm type index, the maximum dimension of the supported parameter estimation input data matrix, the maximum size of at least one dimension of the supported parameter estimation input data matrix, the maximum dimension of the supported computation window, the maximum size of at least one dimension of the computation window, the minimum interval of the computation window (including the horizontal and vertical directions), the maximum starting range of the computation window (including the horizontal and vertical directions), the maximum number of consecutive parameter estimations supported, the minimum search step size supported, and the maximum search interval supported.

[0308] Optionally, after the terminal performs a first channel measurement on the first signal sent by the network-side device, the method further includes at least one of the following:

[0309] The terminal performs a communication transmission operation based on the first target information;

[0310] The terminal acquires the second parameter configuration information from the first target information, receives the second signal based on the second parameter configuration information (for example, determines the information of the second signal based on the second parameter configuration information, and receives the second signal based on the information of the second signal), and performs a second channel measurement;

[0311] The terminal receives third parameter configuration information sent by the network-side device, receives a second signal based on the third parameter configuration information (for example, determining the information of the second signal based on the third parameter configuration information, and receiving the second signal based on the information of the second signal), and performs a second channel measurement.

[0312] The second parameter configuration information may include information about the second signal, which may include the time-frequency resources and antenna port of the second signal. The content of the third parameter configuration information is described in the relevant section of Explanation 3 above and will not be repeated here. The third parameter configuration information may include information about the second signal, which may include the time-frequency resources and antenna port of the second signal.

[0313] Optionally, the terminal performs a communication transmission operation based on the first target information, including at least one of the following:

[0314] The terminal sends a third signal based on the sixth information in the first target information, or receives a third signal based on the sixth information, wherein the sixth information is pre-coded information used by the terminal for communication transmission;

[0315] The terminal determines first precoding information based on the first target information, and sends a third signal based on the first precoding information, or receives a third signal based on the first precoding information;

[0316] The terminal obtains the second parameter configuration information from the first target information and performs communication transmission operations based on the second parameter configuration information.

[0317] The terminal receives third parameter configuration information sent by the network-side device and performs communication transmission operations based on the third parameter configuration information;

[0318] The third signal is used to transmit communication service data.

[0319] The precoding information (such as the sixth information or the first precoding information) may include the precoding vector index, the precoding matrix index (PMI), the precoding vector merging coefficient index, the precoding vector (referring to the direct transmission of precoding weights), or the precoding matrix (referring to the direct transmission of precoding weights), etc.

[0320] In one embodiment, the information sending method of this application includes the following process:

[0321] Step (1): The BS sends a first signal, the UE receives the first signal, and performs downlink channel measurement. The UE obtains first target information about channel multipath or the channel based on the downlink channel measurement. The first target information is described in the previous description of first target information and will not be repeated here.

[0322] In one implementation, the BS sends second target information to the UE. The second target information is described above and will not be repeated here.

[0323] Before the first signal is transmitted, the base station and the terminal exchange second and third target information to determine the terminal's processing capabilities and signal detection requirements.

[0324] The BS sends second target information to the UE, used to configure signal processing parameters related to the UE's detection of the first area. The second target information includes at least one of the following:

[0325] (1) Location information or antenna layout information of base stations and terminals.

[0326] (2) Detection algorithm and configuration information, such as indicating whether the terminal should detect the first region, or in other words, whether to use a detection algorithm and codebook set that does not contain spatial non-stationarity (e.g., NR Type I or Type II codebook) to measure CSI, or to use a detection algorithm and codebook set that supports spatial non-stationarity (e.g., the measurement results of the first region) to perform channel measurements. It is understood that, implicitly, if the detection parameters for the first region are configured, the terminal needs to perform measurement feedback according to a detection algorithm that supports spatial non-stationarity.

[0327] (3) Detection requirements for the first region, such as quantity, granularity, location, etc. For example, configure the terminal to measure and determine N first regions; or configure the terminal to determine that each first region contains no less than M antenna ports; or assume that the base station is given a first region (e.g., through historical data or SRS information) and measure the first region.

[0328] The BS sends the second target information to the UE, which can be carried in the Physical Broadcast Channel (PBCH) or System Information Block (SIB) via broadcast or multicast, or in the Radio Resource Control (RRC) or Downlink Control Information (DCI) via unicast. Alternatively, a combination of both can be used, with broadcast messages indicating some common information and unicast messages indicating other user-specified information. Optionally, at least one of the second target information can be sent to the UE by the core network equipment, including the core network equipment sending at least one of the second target information to the BS, which then forwards it to the UE.

[0329] Optionally, the UE sends third target information to the BS before performing channel measurements.

[0330] Step (2): The UE sends the first target information back to the BS.

[0331] The first target information may include a combination of the first region or a set of regions of the first region and channel information. For example, the first target information may include a set of PMI vectors and a first region or the set of regions, as well as the association relationship, or combination of association relationships, between each region in the first region or the set of regions and a specified PMI vector or subset of vectors in the set of PMI vectors; or, for another example, a set of cluster parameters and a first region or a set of regions of the first region, as well as the association relationship, or combination of association relationships, between each region in the first region or the set of regions and a specified cluster or subset of clusters in the set of cluster parameters.

[0332] Optionally, at least a portion of the first target information can be notified to the BS by the UE via a transmitted index. Specifically, at least one of the contents of the first measurement and the second measurement in the first target information can be quantized based on a pre-agreed quantization rule, and the UE only needs to indicate the index corresponding to the quantized value. Table 6 uses FBCD in the second measurement as an example to illustrate the quantization example of the first target information content (e.g., the first target information includes first-hop multipath distance FBCD). It is assumed that the system bandwidth B... sys For 400MHz, the quantization granularity of FBCD can be selected as c / B. sys That is, 0.375m.

[0333] Table 6

[0334] Assuming the UE needs to indicate the parameter information of Cluster ID 6 in BS Table 1, where the measured value of FBCD is 4.888m, some precision can be sacrificed to reduce transmission overhead. In practice, the UE only needs to indicate the quantization index value 4 corresponding to the UE FBCD. The contents of other first and second measurements are similar and will not be elaborated. For example, the complex amplitude and delay of the channel multipath can be quantized values ​​normalized to the maximum value. The maximum value of the complex amplitude or delay is the maximum value of the complex amplitude or delay of all multipaths obtained in this channel estimation in step (1).

[0335] Step (3): The BS performs communication transmission based on the first target information, including at least one of the following situations:

[0336] (1) The BS performs communication transmission based on the received first vector (i.e., the fifth information in the first target information);

[0337] (2) The BS calculates a third vector based on at least one of the contents of the received first target information, and performs communication transmission based on the third vector, wherein the third vector is precoded information for communication transmission.

[0338] The following examples will provide further explanation:

[0339] Example 1:

[0340] This example implements a codebook reporting method for 3GPP NR Type I that takes into account spatial nonstationarity.

[0341] This application embodiment enables Type I codebook reporting (feedback) within the visible area of ​​a large-scale MIMO channel, with some modifications or additions to the feedback signaling. This embodiment describes a Type I codebook reporting method considering spatial non-stationarity, based on the NR Type I codebook feedback process. The main processes for Type I codebook generation and feedback are as follows:

[0342] Step (1): Determine the beam set, i.e., the Type I codebook set. In this step, if spatial non-stationarity is not considered, the UE obtains parameters N1 and N2 (configured by higher-layer parameters n1-n2, corresponding to 3GPP protocol-related parameters) and determines the oversampling parameters O1 and O2;

[0343] Considering spatial non-stationarity, after the UE performs channel estimation, it determines the parameters of the first region. For example, assuming the lower region is a rectangular region, the parameters of the first region are N′1, N′2, and the oversampling parameters are O′1, O′2, as well as the reference point of the N′1N′2 region (e.g., the upper left corner port, the center port, or a unique unambiguous marker point of the N′1N′2 region). Based on N′1, N′2, and the oversampling parameters O′1, O′2, the Type I codebook set (e.g., the DFT codebook set) corresponding to the first region is determined. Here, N′1 and N′2 are the minimum number of antenna ports in the horizontal direction and the minimum number of antenna ports in the vertical direction, respectively, covering at least one visible area. The value of N′1 can be different from the value of N1, or the value of N′2 can be different from the value of N2 (N′1≤N1, N′2≤N2); In addition, an alternative scheme is that the parameters N′1=N1 and N′2=N2, O′1=O1 and O′2=O2, that is, all visible areas uniformly adopt the number of horizontal and vertical antenna ports and oversampling parameters of the NR Type I codebook complete array.

[0344] Step (2): Select a broadband beam group. That is, select L beams from N′1O′1N′2O′2 beams. In NR, L can be configured as 1 or 4. Optionally, the value of L can be extended to other values ​​and the number of parameters can be greater than 1 to adapt to the characteristics of irregular shape and number of visible areas; considering spatial non-stationarity, the beams can be determined based on the visible area determined by the UE, that is, different numbers of beams are selected for different visible areas, that is, the number of beams is per visible area. For example, the number of beams in the visible area with the fourth index of 0 is L1, the number of beams in the visible area with the fourth index of 1 is L2, and so on.

[0345] Step (3): Beam selection and phase difference quantization. Based on channel estimation or parameter estimation, the UE determines the visible area or first area corresponding to the codebook and determines at least one item in the first target information. The NR directly provides the codebook content under various conditions by configuring parameters and mapping tables. The basic form of the NR Type I codebook is (i.e., selecting orthogonal DFT beams between different layers):

[0346] The values ​​of parameters l, l′, m, m′, n can be determined based on the Precoding Matrix Indicator (PMI) content reported by the UE (including parameter i). 1,1 i 1,2 i 1,3 The values ​​of the PMI parameters (i, i2, k1, k2, etc.) are determined. If the 3GPP PMI codebook definition is used, for a single-layer codebook, the values ​​of the above PMI parameters can be determined according to the 3GPP protocol based on the number of layers. Considering spatial non-stationarity, the UE determines the PMI content and sends the PMI to the BS. The BS determines the values ​​of parameters l, l′, m, m′, n based on relevant tables in the 3GPP protocol, or tables after updates or extensions to the 3GPP protocol, or newly defined codebook tables, and finally determines the codebook based on the above formula. It is understandable that at least one vector (e.g., v) is among the reported precoding vectors. l,m ) is a codeword selected from the codebook corresponding to the first region and associated with the first region.

[0347] In addition, the UE sends first target information to the BS. Optionally, the BS uses the same codebook generation rules as the UE to generate a codebook associated with the first region based on the information of the first region. Used for downlink shaping. The BS determines the codebook based on at least one of the first target information. or The mapping relationship between each beamforming weight and the antenna port of the BS transmit antenna array, or the mapping relationship between the antenna port of the BS transmit antenna array and the physical antenna of the BS transmit antenna array. Optionally, considering the irregular characteristics of the visible area, the UE can simultaneously feed back RI bit sequences of length N′1N′2, which are used to indicate downlink beamforming. The position of the actual effective shaping weights in the middle.

[0348] One possible feedback form is: a combination of parameters of the first region and a codeword, where the first region is a rectangular region of N′1N′2 and reference point position information (i.e., matrix S, the representation of the visible region in the aforementioned spatial non-stationary channel model and codebook feedback), and the codeword is a codeword in the codebook set in step (1) (e.g., ),but Note that the calculation method represented by ⊙ differs depending on the representation of the first region codebook in step (1). For example, when the first region codebook is N′1O′1N′2O′2, the calculation is performed at the reference point position of the first region of the zero vector. to v l,m Element mapping:

[0349] Assuming the first region uses the top-left corner as the reference point with coordinates (a, b), then:

[0350] For example, when the first region codebook is a multiplexed N1O1N2O2 codebook, S is used as a vector mask to... Transform to v l,m :

[0351] It should be noted that, for a dual-polarized antenna array, it is assumed that the antenna arrays in the two polarization directions have the same first region / visible region.

[0352] Example 2:

[0353] This example implements a reporting method for a 3GPP NR Type II codebook that takes into account spatial nonstationarity.

[0354] This application embodiment enables Type II codebook reporting (feedback) within the visible area of ​​a large-scale MIMO channel, and modifies or supplements the feedback signaling. This embodiment describes a Type II codebook reporting method considering spatial non-stationarity, based on the NR Type II codebook feedback process. The main processes for Type II codebook generation and feedback are as follows:

[0355] Step (1): Determine the beam orthogonal basis and the broadband beam group. Considering spatial non-stationarity, after the UE performs channel estimation or parameter estimation, the beam orthogonal basis can be determined based on the visible area determined by the UE. That is, different beam orthogonal bases and different beams are selected for different visible areas. In other words, the number of beam orthogonal bases and beams can be per visible area. That is, K groups are selected from the O1O2 group DFT beam orthogonal bases, K≥1, corresponding to different visible areas. For example, for the visible area with the 0th polarization and the fourth index of 0, 1 orthogonal base is selected from the O1O2 group DFT beam orthogonal bases. The number of beams is L1; for the visible area with the fourth index 1, another set of orthogonal bases is selected from the O1O2 set of DFT beam orthogonal bases. The number of beams is L2, etc. Optionally, the values ​​of L1 and L2 are not equal, and the values ​​of L1 and L2 can be extended to other values ​​besides 2, 3, and 4. Optionally, for some of the visible areas, a Type I codebook can be used, and the number of beams L is 1 or 4; in the above example, different visible areas can be used for single-stream or multi-stream transmission of different UEs.

[0356] In one implementation, W1 can also be determined based on the channel estimate H of the entire array (in the case of spatial non-stationarity), a process similar to that of the NR Type II codebook. This example also provides a method that leverages spatial non-stationarity to enhance the spatial degrees of freedom introduced by the MIMO channel. Non-overlapping visible areas are naturally orthogonal (due to different physical propagation paths), which can be used for multi-stream or multi-user transmission. The UE can report visible area information, i.e., the first target information. After reporting the codebook corresponding to the visible area, the BS selects a subset of the codebooks for downlink multi-user transmission based on the multi-user visible area situation.

[0357] Another option is for the UE to provide feedback codebooks for different multiple visible areas. These multiple visible area codebooks constitute a single-stream or multi-stream transmission codebook for the UE, meaning that inter-stream orthogonality is achieved through the spatial non-stationarity of the channel. For example, for a visible area with polarization 0 and index 0 of the fourth line, one orthogonal basis is selected from the O1O2 groups of DFT beam orthogonal bases. For a visible region with L1 beams and a fourth index of 1, select another set of orthogonal bases from the O1O2 DFT beam orthogonal bases. If the number of beams is L2, then the orthogonal basis used for the UE is:

[0358] Step (2): Amplitude quantization of broadband coefficients. Amplitude quantization of broadband coefficients is performed independently for each layer to calculate the quantization coefficient P. WB Assume the feature vector of the broadband channel is V. WB(Obtained through UE channel estimation), the broadband beam combination coefficient matrix is: Then there should be Since W1 is a unitary matrix, therefore right Amplitude normalization quantization is performed based on the strongest beam coefficient to obtain the broadband amplitude quantization coefficient. NR's Enhanced Type II codebook performs feedback overhead compression and rank expansion on the Type II codebook. After channel estimation, the UE feeds back PMI content (including parameter i). 1,1 i 1,2 i 2,3,l (etc.) determine the orthogonal basis index of the downlink shaped codebook, and the amplitude coefficient of the r-th polarization of the l-th stream.

[0359] Considering spatial nonstationarity, after the UE performs channel estimation or parameter estimation, the corresponding broadband channel feature vector for the visible region k is obtained as follows: And obtain according to the above method Ultimately, the bandwidth amplitude coefficient is determined based on relevant mapping tables in the 3GPP protocol, or a newly defined quantization mapping table. In addition, the UE sends at least one item of the first target information content to the BS. Based on at least one item of the first target information, the BS determines the bandwidth amplitude coefficient. Mapping relationship with the visible area of ​​the BS transmitting antenna array.

[0360] Step (3): Subband coefficient amplitude and phase quantization. Similar to wideband coefficient amplitude quantization, based on the subband channel feature vector V SB and W1 should have get right Amplitude normalization quantization is performed based on the strongest broadband beam coefficient to obtain the sub-band amplitude quantization coefficient. and sub-band phase quantization coefficients Finally obtained After channel estimation, the UE feeds back PMI content (including parameter i). 1,6,l i 1,7,l i 1,8,l i 2,4,l i 2,5,l (etc.) Determine the subband amplitude coefficient and phase coefficient of the downlink shaped codebook.

[0361] Considering spatial nonstationarity, similarly, for the visible region k, the corresponding sub-band amplitude coefficients can be obtained. and the phase quantization coefficient C kk = 1, 2, 3, ..., K. Then, based on the relevant mapping tables in the 3GPP protocol, or a newly defined quantization mapping table, the sub-band amplitude coefficients are determined. and phase coefficient In addition, the UE sends at least one item of the first target information content to the BS. Based on at least one item of the first target information, the BS determines the sub-band amplitude coefficient. and phase coefficient Mapping relationship with the visible area of ​​the BS transmitting antenna array.

[0362] Based on the above description, the Type II codebook representation of the visible region / first region is as follows:

[0363] in

[0364] This includes K visible regions, where the PMI parameters of the k-th visible region correspond to codeword subsets. and visible area S k The position of the codeword subset of the k-th visible region in the codeword set is i. k ,Right now The calculation method is the same as in Example 1, and will not be repeated here.

[0365] Example 3:

[0366] This example enables UE downlink spatial non-stationary channel information / codebook feedback to assist the BS in downlink beamforming, improving transmission capacity while saving feedback overhead and energy. Taking Figure 2b as an example, for ease of explanation, it is assumed that only two reflectors exist in the channel. Reflector 1 corresponds to far-field cluster 1 and far-field cluster 2 in the figure, and reflector 2 corresponds to near-field cluster 1 and far-field cluster 3. It should be noted that to represent multipath caused by reflectors as potentially multi-hop reflections, two clusters are used to represent the reflectors (i.e., far-field cluster 1 and far-field cluster 2, near-field cluster 1 and far-field cluster 3 in Figure 2b, also known as twin-clusters. When it is a single-hop reflection, far-field cluster 1 and far-field cluster 2 in Figure 2b overlap to form one cluster, and near-field cluster 1 and far-field cluster 3 overlap to form one cluster). Far-field cluster 1 and near-field cluster 1 are the clusters observed from the BS side, while far-field cluster 2 and far-field cluster 3 are the clusters observed from the UE side. It is assumed that both the BS and UE use linear arrays, and that the BS array has N... tx(N in Figure 2b) tx =20) logical antenna ports, the UE has N rx (Assume N) rx =4) logical antenna ports, with each logical antenna port connected to one physical antenna element for both the BS and UE. Other array configurations can also use this scheme with slight modifications.

[0367] After step (1), the UE performs downlink channel measurement to obtain the first target information. Before this step, the BS sends the second target information to the UE, and the UE performs channel parameter estimation based on the second target information. For example, the second target information includes the array sliding window size as p (here, p = 4), the sliding window step size as p-1, etc., when the UE performs parameter estimation.

[0368] Assume that the multipath parameter corresponding to reflector 1 is For the visible area 1, the corresponding BS-side physical antenna index is {1,2,...,n1} (n1 = 10 in Figure 2b); the multipath parameter corresponding to reflector 2 is... Where d BS,2 For the downlink first-hop multipath distance (FBCD), corresponding to visible area 2, the corresponding BS-side physical antenna index is {n2, n2+1, ..., N}. tx (In Figure 2b, n2 = 7). The downlink channel multipath complex amplitudes α1 and α2 can be obtained through maximum likelihood estimation, i.e.

[0369] in These are the steering vectors (with a magnitude of 1) of the multipath corresponding to reflector 1 on the BS and UE sides, respectively. These are the guidance vectors of the multipath corresponding to reflector 2 on the BS and UE sides, respectively. The channel matrix obtained from the downlink channel estimation on the UE side corresponds to the channel between the transmit antenna array formed by the physical antenna indices (second index) {1,2,...,n1} on the BS side and the channel between the UE and the physical antenna indices (second index) {n2,n2+1,...,N} on the BS side. tx The transmit antenna array formed by the array and the channel between the UE and the UE. During parameter estimation, the UE receives a channel matrix within a sliding window, with dimension N. rx ×p. Based on the estimated multiple sets of channel multipath parameters Based on at least one parameter, the UE can determine that visible region 1 and visible region 2 correspond to the second index {1,2,...,n1} and {n2,n2+1,...,N}. tx Obviously, if we directly report indices {1,2,...,n1} and {n2,n2+1,...,N}... txThe reporting overhead for the multipath parameters and their corresponding values ​​is relatively large. If a two-dimensional array is considered, the visible area may also be irregularly shaped, making the high reporting overhead even more significant. Assuming the first index value and corresponding basic unit are defined in Figure 4, the UE can report the first index {2,2,2} and their corresponding second index {1,4,8}, that is, by indicating three "1×4" line units and their physical location information, the BS-side channel multipath parameters are represented. The visible area 1 can be represented by the UE. Alternatively, the UE can report the first index {3,1,1} and its corresponding second index {1,9,10}, which means indicating one “1×8” line unit, two “1×1” line units, and their physical location information to represent the visible area 1. In addition, the UE can also report the first index {3,2} and its corresponding second index {1,7}, which means indicating one “1×8” line unit, one “1×4” line unit, and their physical location information to represent the visible area 1. This method greatly reduces the reporting overhead of the channel visible area information.

[0370] Optionally, the BS sends a second target information to the UE to assist the UE in estimating channel parameters based on downlink channel measurement results.

[0371] Optionally, the UE reports third target information to the BS before step 1 to assist the BS in determining the downlink channel measurement parameter configuration information.

[0372] After step (2), the UE feeds back at least one of the first target information to the BS, which can be implemented in the following 5 ways:

[0373] Method 1: The UE directly feeds back downlink channel multipath parameter information, including Alternatively, the quantization indexes of the aforementioned parameters. For multipath complex amplitude, this could be the quantization index of the normalized maximum feedback amplitude and the phase quantization index. Furthermore, the UE also feeds back to the BS the mapping relationship between the aforementioned multipath parameter information (such as the second measurement) and the visible area, i.e., the association relationship between the aforementioned multipath parameter information (such as the second measurement) and the first and second indices;

[0374] Method 2: UE feedback of downlink channel multipath complex amplitudes α1, α2 and At least one of the terms, wherein the coefficients β1 and β2 are determined by UE based on α1, α2, The first vector is obtained through linear transformation calculation; in addition, the UE also feeds back the mapping relationship between the first vector and the visible area to the BS, that is, the association relationship between the first vector and the first index and the second index.

[0375] Method 3: UE feedback of the eigenvectors of the covariance matrix or correlation matrix of the downlink channel estimation matrix At least one of them; in addition, the UE also feeds back to the BS the mapping relationship between the above-mentioned channel feature value parameter information (such as the second measurement quantity) and the visible area, that is, the association relationship between the above-mentioned channel feature value parameter information (such as the second measurement quantity) and the first index and the second index.

[0376] Method 4: UE Feedback At least one item of the channel matrix, or at least one item of their covariance matrix or correlation matrix. In addition, the UE also feeds back to the BS the mapping relationship between the above-mentioned channel parameter information (such as the second measurement) and the visible area, that is, the association relationship between the above-mentioned channel parameter information (such as the second measurement) and the first index and the second index.

[0377] After step (3), downlink communication transmission and / or forwarding of sensing results are achieved.

[0378] It should be noted that the above example assumes only two main reflectors in the channel. In reality, there may be different numbers of reflectors, and each reflector may correspond to multiple objects in the environment. The channel feedback information should be increased or decreased accordingly for different numbers of reflectors. It should be understood that this example procedure applies to different numbers of reflectors and different MIMO array configurations.

[0379] Referring to Figure 6, which is a flowchart of an information receiving method provided in an embodiment of this application, the information receiving method includes the following steps:

[0380] Step 201: The network-side device sends the first signal;

[0381] Step 202: The network-side device receives first target information sent by the terminal. The first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

[0382] Optionally, the first target information includes at least one of the following:

[0383] First information, which is used to characterize the shape of the first region;

[0384] The second information is used to characterize the physical location of the units constituting the first region;

[0385] The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units;

[0386] The fourth information is used to identify the first region;

[0387] The fifth piece of information is the precoded information used by the network-side device for communication transmission;

[0388] The relationship between the fourth information and the fifth information.

[0389] Optionally, the first information includes a first index, which is an index of one or more basic units associated with the first region.

[0390] Optionally, the second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

[0391] Optionally, the first target information includes the fourth information, which includes one or more fourth indices, each of which corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

[0392] Optionally, the basic unit is predefined by the protocol or configured by the network-side device.

[0393] Optionally, the basic unit includes at least one of the following:

[0394] A two-dimensional visible region used to characterize the two-dimensional antenna array region;

[0395] A one-dimensional visible region used to characterize a one-dimensional antenna array region.

[0396] Optionally, the method further includes:

[0397] The network-side device sends second target information to the terminal, the second target information including at least one of the following:

[0398] Location information of at least one of the network-side devices and the terminal;

[0399] At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement, wherein the first channel measurement is used to obtain the first target information;

[0400] The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0401] Optionally, the first parameter configuration information includes at least one of the following:

[0402] Configuration information of the first signal;

[0403] Configuration information of the antenna array or antenna port used for the first channel measurement;

[0404] The number of the first region or the first threshold value;

[0405] The precision of the first region or the second threshold value;

[0406] Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

[0407] Optionally, the target parameter configuration information includes at least one of the following:

[0408] Indicative information used to indicate parameter estimation algorithms;

[0409] Judgment information in the first region;

[0410] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0411] Optionally, the method further includes:

[0412] The network-side device receives third target information sent by the terminal, the third target information including at least one of the following:

[0413] The location information of the terminal;

[0414] The physical antenna array information of the terminal;

[0415] The status information of the terminal;

[0416] The communication capability information of the terminal;

[0417] The terminal can be used to communicate resource information;

[0418] The terminal's computing power information.

[0419] Optionally, after the network-side device receives the first target information sent by the terminal, the method further includes:

[0420] The network-side device performs communication transmission operations based on the first target information;

[0421] The network-side device obtains the second parameter configuration information from the first target information, and sends the second signal based on the second parameter configuration information (for example, determining the information of the second signal based on the second parameter configuration information, and sending the third signal based on the information of the second signal). The second signal is used for second channel measurement.

[0422] The network-side device determines third parameter configuration information based on the first target information, sends the third parameter configuration information to the terminal, and sends the second signal based on the third parameter configuration information (for example, determining the information of the second signal based on the third parameter configuration information and sending the third signal based on the information of the second signal). The second signal is used for second channel measurement.

[0423] Optionally, the network-side device performs communication transmission operations based on the first target information, including at least one of the following:

[0424] The network-side device acquires the fifth information from the first target information and sends a third signal based on the fifth information, or receives a third signal based on the fifth information;

[0425] The network-side device determines second precoding information based on the first target information, and sends a third signal based on the second precoding information, or receives a third signal based on the second precoding information;

[0426] The network-side device obtains the second parameter configuration information from the first target information and performs communication transmission operations based on the second parameter configuration information.

[0427] The network-side device determines the third parameter configuration information based on the first target information, sends the third parameter configuration information to the terminal, and performs communication transmission operations based on the third parameter configuration information.

[0428] The third signal is used to transmit communication service data.

[0429] It should be noted that this embodiment is an implementation method of the terminal corresponding to the embodiment shown in FIG3. For the specific implementation method, please refer to the relevant description of the embodiment shown in FIG3. To avoid repeated description, this embodiment will not be repeated.

[0430] The information sending method provided in this application can be executed by an information sending device. This application uses an information sending device executing the information sending method as an example to illustrate the information sending device provided in this application.

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

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

[0433] Specifically, referring to Figure 7, when the information transmitting device is a terminal or a component within a terminal, the information transmitting device 300 includes:

[0434] Processing module 301 is used to perform a first channel measurement on the first signal sent by the network-side device to obtain first target information;

[0435] The sending module 302 is used to send the first target information to the network-side device;

[0436] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

[0437] Optionally, the first target information includes at least one of the following:

[0438] First information, which is used to characterize the shape of the first region;

[0439] The second information is used to characterize the physical location of the units constituting the first region;

[0440] The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units;

[0441] The fourth information is used to identify the first region;

[0442] The fifth piece of information is the precoded information used by the network-side device for communication transmission;

[0443] The relationship between the fourth information and the fifth information.

[0444] Optionally, the first information includes a first index, which is an index of one or more basic units associated with the first region.

[0445] Optionally, the second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

[0446] Optionally, the first target information includes the fourth information, which includes one or more fourth indices, each of which corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

[0447] Optionally, the basic unit is predefined by the protocol or configured by the network-side device.

[0448] Optionally, the basic unit includes at least one of the following:

[0449] A two-dimensional visible region used to characterize the two-dimensional antenna array region;

[0450] A one-dimensional visible region used to characterize a one-dimensional antenna array region.

[0451] Optionally, the device further includes:

[0452] The receiving module is configured to receive second target information sent by the network-side device, wherein the second target information includes at least one of the following:

[0453] Location information of at least one of the network-side devices and the terminal;

[0454] At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement;

[0455] The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0456] Optionally, the first parameter configuration information includes at least one of the following:

[0457] Configuration information of the first signal;

[0458] Configuration information of the antenna array or antenna port used for the first channel measurement;

[0459] The number of the first region or the first threshold value;

[0460] The precision of the first region or the second threshold value;

[0461] Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

[0462] Optionally, the target parameter configuration information includes at least one of the following:

[0463] Indicative information used to indicate parameter estimation algorithms;

[0464] Judgment information in the first region;

[0465] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0466] The information sending device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG3 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0467] The information receiving method provided in this application can be executed by an information receiving device. This application uses an information receiving device executing the information receiving method as an example to illustrate the information receiving device provided in this application.

[0468] This application provides an information receiving device. As an example, the information receiving device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0469] The information receiving device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0470] Referring to Figure 8, when the information receiving device is a network-side device or a component within a network-side device, the information receiving device 400 includes:

[0471] Transmitting module 401 is used to transmit the first signal;

[0472] The receiving module 402 is used to receive first target information sent by the terminal. The first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

[0473] Optionally, the first target information includes at least one of the following:

[0474] First information, which is used to characterize the shape of the first region;

[0475] The second information is used to characterize the physical location of the units constituting the first region;

[0476] The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units;

[0477] The fourth information is used to identify the first region;

[0478] The fifth piece of information is the precoded information used by the network-side device for communication transmission;

[0479] The relationship between the fourth information and the fifth information.

[0480] Optionally, the first information includes a first index, which is an index of one or more basic units associated with the first region.

[0481] Optionally, the second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

[0482] Optionally, the first target information includes the fourth information, which includes one or more fourth indices, each of which corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

[0483] Optionally, the basic unit is predefined by the protocol or configured by the network-side device.

[0484] Optionally, the basic unit includes at least one of the following:

[0485] A two-dimensional visible region used to characterize the two-dimensional antenna array region;

[0486] A one-dimensional visible region used to characterize a one-dimensional antenna array region.

[0487] Optionally, the sending module is further configured to:

[0488] Send second target information to the terminal, the second target information including at least one of the following:

[0489] Location information of at least one of the network-side devices and the terminal;

[0490] At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement, wherein the first channel measurement is used to obtain the first target information;

[0491] The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0492] Optionally, the first parameter configuration information includes at least one of the following:

[0493] Configuration information of the first signal;

[0494] Configuration information of the antenna array or antenna port used for the first channel measurement;

[0495] The number of the first region or the first threshold value;

[0496] The precision of the first region or the second threshold value;

[0497] Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

[0498] Optionally, the target parameter configuration information includes at least one of the following:

[0499] Indicative information used to indicate parameter estimation algorithms;

[0500] Judgment information in the first region;

[0501] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0502] The information receiving device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG6 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0503] As shown in Figure 9, this application embodiment also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores programs or instructions that can run on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various steps of the above-described information sending method embodiment and achieve the same technical effect. When the communication device 500 is a network-side device, the program or instructions executed by the processor 501 implement the various steps of the above-described information receiving method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0504] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG9. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the information sending device shown in FIG7. Specifically, FIG10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0505] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0506] Those skilled in the art will understand that terminal 600 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 610 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 10 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0507] It should be understood that, in this embodiment, the input unit 604 may include a graphics processor 6041 and a microphone 6042. The graphics processor 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. 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 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0508] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0509] The memory 609 can be used to store software programs or instructions, as well as various data. The memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0510] Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0511] The radio frequency unit 601 is used to: perform a first channel measurement on the first signal sent by the network-side device to obtain first target information;

[0512] The radio frequency unit 601 is also used to send the first target information to the network-side device;

[0513] The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

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

[0515] First information, which is used to characterize the shape of the first region;

[0516] The second information is used to characterize the physical location of the units constituting the first region;

[0517] The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units;

[0518] The fourth information is used to identify the first region;

[0519] The fifth piece of information is the precoded information used by the network-side device for communication transmission;

[0520] The relationship between the fourth information and the fifth information.

[0521] Optionally, the first information includes a first index, which is an index of one or more basic units associated with the first region.

[0522] Optionally, the second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

[0523] Optionally, the first target information includes the fourth information, which includes one or more fourth indices, each of which corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

[0524] Optionally, the basic unit is predefined by the protocol or configured by the network-side device.

[0525] Optionally, the basic unit includes at least one of the following:

[0526] A two-dimensional visible region used to characterize the two-dimensional antenna array region;

[0527] A one-dimensional visible region used to characterize a one-dimensional antenna array region.

[0528] Optionally, the radio frequency unit 601 is further configured to:

[0529] The terminal receives second target information sent by the network-side device, the second target information including at least one of the following:

[0530] Location information of at least one of the network-side devices and the terminal;

[0531] At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement;

[0532] The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0533] Optionally, the first parameter configuration information includes at least one of the following:

[0534] Configuration information of the first signal;

[0535] Configuration information of the antenna array or antenna port used for the first channel measurement;

[0536] The number of the first region or the first threshold value;

[0537] The precision of the first region or the second threshold value;

[0538] Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

[0539] Optionally, the target parameter configuration information includes at least one of the following:

[0540] Indicative information used to indicate parameter estimation algorithms;

[0541] Judgment information in the first region;

[0542] The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

[0543] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description in Figure 3 of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0544] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG6. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0545] Specifically, this application embodiment also provides a network-side device, which can be the information transmitting device shown in FIG8. As shown in FIG11, the network-side device 700 includes: an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704, and a memory 705. The antenna 701 is connected to 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 transmitted and sends it to the radio frequency device 702. The radio frequency device 702 processes the received information and transmits it through the antenna 701.

[0546] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 703, which includes a baseband processor.

[0547] The baseband device 703 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG11. One of the chips is, for example, a baseband processor, which is connected to the memory 705 via a bus interface to call the program in the memory 705 and execute the network device operation shown in the above method embodiment.

[0548] The network-side device may also include a network interface 706, such as a Common Public Radio Interface (CPRI).

[0549] Specifically, the network-side device 700 in this application embodiment further includes: instructions or programs stored in memory 705 and executable on processor 704. Processor 704 calls the instructions or programs in memory 705 to execute the methods executed by each module shown in FIG8 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0550] Specifically, this application also provides a network-side device. As shown in FIG12, the network-side device 800 includes a processor 801, a network interface 802, and a memory 803. The network-side device may be the information transmitting device shown in FIG8. The network interface 802 is, for example, a Common Public Radio Interface (CPRI).

[0551] Specifically, the network-side device 800 in this application embodiment further includes: instructions or programs stored in memory 803 and executable on processor 801. Processor 801 calls the instructions or programs in memory 803 to execute the methods executed by each module shown in FIG8 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0552] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information sending method or information receiving method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0553] The processor mentioned above is the processor in the terminal or network-side device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0554] This application embodiment also provides a chip, which 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 the various processes of the above-described information sending method or information receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0555] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0556] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described information sending method or information receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0557] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the information transmission method applied to the terminal as described above, and the network-side device can be used to perform the steps of the information reception method applied to the network-side device as described above.

[0558] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0559] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0560] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for sending information, comprising: The terminal performs a first channel measurement on the first signal sent by the network-side device to obtain the first target information; The terminal sends the first target information to the network-side device; The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side device and the terminal.

2. The method according to claim 1, wherein, The first target information includes at least one of the following: First information, which is used to characterize the shape of the first region; The second information is used to characterize the physical location of the units constituting the first region; The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units; The fourth information is used to identify the first region; The fifth piece of information is the precoded information used by the network-side device for communication transmission; The relationship between the fourth information and the fifth information.

3. The method according to claim 2, wherein, The first information includes a first index, which is an index of one or more basic units associated with the first region.

4. The method according to claim 3, wherein, The second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

5. The method according to any one of claims 2-4, wherein, The first target information includes the fourth information, which includes one or more fourth indices. Each fourth index corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

6. The method according to any one of claims 2-5, wherein, The basic unit is predefined by the protocol or configured by the network-side device.

7. The method according to any one of claims 2-6, wherein, The basic unit includes at least one of the following: A two-dimensional visible region used to characterize the two-dimensional antenna array region; A one-dimensional visible region used to characterize a one-dimensional antenna array region.

8. The method according to any one of claims 1-7, wherein, Before the terminal performs a first channel measurement on the first signal sent by the network-side device, the method further includes: The terminal receives second target information sent by the network-side device, the second target information including at least one of the following: Location information of at least one of the network-side devices and the terminal; At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement; The target parameter configuration information is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

9. The method according to claim 8, wherein, The first parameter configuration information includes at least one of the following: Configuration information of the first signal; Configuration information of the antenna array or antenna port used for the first channel measurement; The number of the first region or the first threshold value; The precision of the first region or the second threshold value; Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

10. The method according to claim 8 or 9, wherein, The target parameter configuration information includes at least one of the following: Indicative information used to indicate parameter estimation algorithms; Judgment information in the first region; The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

11. An information receiving method, comprising: The network-side device sends the first signal; The network-side device receives first target information sent by the terminal. The first target information is related to a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

12. The method according to claim 11, wherein, The first target information includes at least one of the following: First information, which is used to characterize the shape of the first region; The second information is used to characterize the physical location of the units constituting the first region; The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units; The fourth information is used to identify the first region; The fifth piece of information is the precoded information used by the network-side device for communication transmission; The relationship between the fourth information and the fifth information.

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

14. The method according to claim 13, wherein, The second information includes a second index, which indicates the physical location or logical location of the antenna port of the target unit in the antenna array of the network-side device. The target unit is the basic unit corresponding to the first index, or the target unit is a unit that has a transformation relationship with the basic unit corresponding to the first index. The target unit is used to constitute the first region.

15. The method according to any one of claims 12-14, wherein, The first target information includes the fourth information, which includes one or more fourth indices. Each fourth index corresponds to a first region, and the first region is determined by at least one of the first information, the second information, the third information, and the fifth information.

16. The method according to any one of claims 12-15, wherein, The basic unit is predefined by the protocol or configured by the network-side device.

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

18. The method according to any one of claims 11-17, wherein, The method further includes: The network-side device sends second target information to the terminal, the second target information including at least one of the following: Location information of at least one of the network-side devices and the terminal; At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement, wherein the first channel measurement is used to obtain the first target information; The target parameter configuration information is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

19. The method according to claim 18, wherein, The first parameter configuration information includes at least one of the following: Configuration information of the first signal; Configuration information of the antenna array or antenna port used for the first channel measurement; The number of the first region or the first threshold value; The precision of the first region or the second threshold value; Wherein, the first threshold value is a threshold value for the number of the first region, and the second threshold value is a threshold value for the accuracy of the first region.

20. The method according to claim 18 or 19, wherein, The target parameter configuration information includes at least one of the following: Indicative information used to indicate parameter estimation algorithms; Judgment information in the first region; The parameter estimation algorithm is a signal processing algorithm used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

21. An information transmitting device, comprising: The processing module is used to perform a first channel measurement on the first signal sent by the network-side device to obtain the first target information; The sending module is used to send the first target information to the network-side device; The first target information is related information of a first region, which is a portion of the antenna array of at least one of the network-side devices and terminals.

22. The apparatus according to claim 21, wherein, The first target information includes at least one of the following: First information, which is used to characterize the shape of the first region; The second information is used to characterize the physical location of the units constituting the first region; The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units; The fourth information is used to identify the first region; The fifth piece of information is the precoded information used by the network-side device for communication transmission; The relationship between the fourth information and the fifth information.

23. The apparatus according to claim 21 or 22, wherein, The device further includes: The receiving module is configured to receive second target information sent by the network-side device, wherein the second target information includes at least one of the following: Location information of at least one of the network-side devices and the terminal; At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement; The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

24. An information receiving device, comprising: The transmitting module is used to transmit the first signal; A receiving module is used to receive first target information sent by a terminal. The first target information is related information of a first region, and the first region is a portion of the antenna array of at least one of the network-side device and the terminal.

25. The apparatus according to claim 24, wherein, The first target information includes at least one of the following: First information, which is used to characterize the shape of the first region; The second information is used to characterize the physical location of the units constituting the first region; The third information is used to characterize the transformation relationship between the units constituting the first region and the basic units; The fourth information is used to identify the first region; The fifth piece of information is the precoded information used by the network-side device for communication transmission; The relationship between the fourth information and the fifth information.

26. The apparatus according to claim 24 or 25, wherein, The sending module is also used for: Send second target information to the terminal, the second target information including at least one of the following: Location information of at least one of the network-side devices and the terminal; At least one of the network-side device and the terminal has first parameter configuration information for the first channel measurement, wherein the first channel measurement is used to obtain the first target information; The target parameter configuration information of the terminal is used to obtain at least one of the first measurement quantity, the second measurement quantity, and the fifth information.

27. An electronic device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the information transmission method as claimed in any one of claims 1-10, or implementing the steps of the information reception method as claimed in any one of claims 11-20.

28. A readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the information transmission method as claimed in any one of claims 1-10, or the steps of the information reception method as claimed in any one of claims 11-20.

29. A computer program / program product, which, when executed by at least one processor, implements the steps of the information transmission method as claimed in any one of claims 1-10, or the steps of the information reception method as claimed in any one of claims 11-20.

Images