Wireless communication method, terminal device, and network device

Abstract

The present application provides a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receives first reference signal resource configuration information, wherein the first reference signal resource configuration information is used for configuring K reference signal resources, the K reference signal resources are used for determining first channel information and / or second channel information, and K is a positive integer. In the present application, reference signal resources of one or more pieces of channel information (i.e., first channel information and / or second channel information) can be configured. Reference signal resources of different pieces of channel information can be used for implementing different functions, e.g. implementing reasoning based on a first model or performance monitoring for the first model. Therefore, the present application can implement configurations of model performance monitoring and / or model reasoning.

Description

Wireless communication methods, terminal devices, and network devices Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal device, and network device. Background Technology

[0002] To achieve a reasonable communication process, channel information is required. For example, terminal devices can feed back downlink channel state information (CSI). Based on CSI, network devices can determine the terminal device's scheduling information, such as the transmission layer number, precoding matrix, transmit beam, and modulation / coding scheme. In related technologies, to obtain the complete uplink or downlink CSI, the transmitting end needs to send a reference signal corresponding to the complete antenna port (usually corresponding to the number of antennas at the transmitting end) and the complete bandwidth, allowing the receiving end to measure the complete channel information, thereby obtaining the uplink or downlink CSI and indicating it to the transmitting end. With technological advancements, it is possible to recover the complete antenna port or complete bandwidth CSI from channel information of partial antenna ports or partial bandwidths using inference based on a first model, thereby reducing the overhead of the reference signal. Similarly, using the first model, future CSIs can be predicted from historical CSIs. Summary of the Invention

[0003] This application provides a wireless communication method, a terminal device, and a network device. The various aspects covered by this application are described below.

[0004] In a first aspect, a wireless communication method is provided, the method comprising: a terminal device receiving first reference signal resource configuration information; wherein the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources being used to determine first channel information and / or second channel information, and K being a positive integer.

[0005] In a second aspect, a wireless communication method is provided, the method comprising: a network device sending first reference signal resource configuration information to a terminal device; wherein the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources being used to determine first channel information and / or second channel information, and K being a positive integer.

[0006] Thirdly, a terminal device is provided, comprising: a receiving unit, configured to receive first reference signal resource configuration information; wherein the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources being used to determine first channel information and / or second channel information, and K being a positive integer.

[0007] Fourthly, a network device is provided, comprising: a transmitting unit, configured to transmit first reference signal resource configuration information to a terminal device; wherein the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources being used to determine first channel information and / or second channel information, and K being a positive integer.

[0008] Fifthly, a terminal device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and to control the transceiver to receive or send signals so that the terminal device performs some or all of the steps in the method of the first aspect.

[0009] In a sixth aspect, a network device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and to control the transceiver to receive or transmit signals so that the network device performs some or all of the steps in the method of the second aspect.

[0010] In a seventh aspect, a communication system is provided, which includes the aforementioned terminal device and / or network device. In another possible design, the system may further include other devices that interact with the terminal device or network device as described in the embodiments of this application.

[0011] Eighthly, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program that causes a terminal device and / or a network device to perform some or all of the steps in the methods of the above aspects.

[0012] Ninthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a terminal device and / or a network device to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product may be a software installation package.

[0013] In a tenth aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

[0014] Based on this application, reference signal resources for one or more channel information (i.e., first channel information and / or second channel information) can be configured. Reference signal resources for different channel information can perform different functions, such as inference based on a first model or performance monitoring of the first model. Therefore, this application can configure model performance monitoring and / or model inference. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the wireless communication system used in the embodiments of this application.

[0016] Figure 2 illustrates the neural network model applicable to the embodiments of this application.

[0017] Figure 3 illustrates the neural network model applicable to the embodiments of this application.

[0018] Figure 4 illustrates a convolutional neural network applicable to embodiments of this application.

[0019] Figure 5 illustrates the long short-term memory (LSTM) model applicable to the embodiments of this application.

[0020] Figure 6 shows examples of different reporting methods for various CSIs.

[0021] Figure 7A is an example of an input scenario for the first model.

[0022] Figure 7B is an example of another input scenario for the first model.

[0023] Figure 8 is a schematic flowchart of a wireless communication method provided in an embodiment of this application.

[0024] Figure 9A is an example diagram of x ports and y ports provided in an embodiment of this application.

[0025] Figure 9B is another example diagram of x ports and y ports provided in the embodiments of this application.

[0026] Figure 9C is another example diagram of x ports and y ports provided in the embodiments of this application.

[0027] Figure 10 is a schematic structural diagram of a terminal device provided in this application.

[0028] Figure 11 is a schematic structural diagram of a network device provided in an embodiment of this application.

[0029] Figure 12 is a schematic structural diagram of a communication device provided in an embodiment of this application. Detailed Implementation

[0030] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0031] Communication system

[0032] Figure 1 illustrates a wireless communication system 100 according to an embodiment of this application. The wireless communication system 100 may include communication devices. These communication devices may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120.

[0033] Figure 1 illustrates an exemplary network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

[0034] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0035] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

[0036] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal device in the embodiments of this application can be a mobile phone, tablet computer, laptop computer, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D) communication. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0037] The network device in this application embodiment can be a device for communicating with terminal devices. The network device may also include an access network device. The access network device can provide communication coverage for a specific geographical area and can communicate with the terminal device 120 located within that coverage area. The access network device can also be called a wireless access network device or a base station, etc. In this application embodiment, the access network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. Access network equipment can broadly encompass various names listed below, or be replaced by names such as: NodeB, Evolved NodeB (eNB), Next Generation NodeB (gNB), Relay Station, Transmitting and Receiving Point (TRP), Transmitting Point (TP), Master eNB (MeNB), Secondary eNB (SeNB), Multi-Standard Radio (MSR) Node, Home Base Station, Network Controller, Access Node, Wireless Node, Access Point (AP), Transmitter Node, Transceiver Node, Baseband Unit (BBU), Remote Radio Unit (RRU), Active Antenna Unit (AAU), Remote Radio Head (RRH), Central Unit (CU), Distributed Unit (DU), Location Node, Centralized Unit-Control Plane (CU-CP), Centralized Unit-User Plane (CU-User) Base stations can be macro base stations, micro base stations, relay nodes, donor nodes, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, equipment performing base station functions in D2D, V2X, and machine-to-machine (M2M) communications, network-side equipment in 6G networks, and equipment performing base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or equipment forms used in the access network equipment.

[0038] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0039] Wireless communication systems involve communication equipment that can include not only access network equipment and terminal equipment, but also core network elements. Core network elements can be implemented through devices; that is, core network elements are core network devices. It can be understood that core network devices can also be a type of network device.

[0040] The core network elements in this application embodiment may include network elements that process and forward user signaling and data. For example, core network equipment may include core access and mobility management function (AMF), session management function (SMF), location management function (LMF), network slice selection function (NSSF), authentication server function (AUSF), unified data management (UDM), policy control function (PCF), user plane function (UPF), sensing function (SF), network data analytics function (NWDAF), and artificial intelligence (AI) function management entity, etc. Of course, the core network may also include other network elements, which are not listed here.

[0041] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0042] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0043] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0044] Neural Networks and Machine Learning

[0045] In recent years, artificial intelligence research, represented by neural networks, has achieved remarkable results in many fields and will play an important role in people's production and life for a long time to come. A neural network can be understood as a computational model composed of multiple interconnected neuron nodes. The connections between nodes can represent weighted values ​​from the input signal to the output signal, usually called parameters. Each node performs a weighted summation of different input signals and outputs the result through a specific activation function.

[0046] Referring to Figure 2, neurons can achieve nonlinear mappings by relying on activation functions, where the input of the neuron can be denoted as A, and each dimension of the input can be denoted as a. j The corresponding parameter is denoted as w. j Together with summation units (SUs), they enhance or weaken the input. Furthermore, the output of the SU can be input to the activation function f to obtain the output t, where j takes values ​​of 1, 2, ..., n.

[0047] Common neural networks include convolutional neural networks (CNN), recurrent neural networks (RNN), and deep neural networks (DNN).

[0048] The following description, in conjunction with Figure 3, introduces the neural network applicable to the embodiments of this application. The neural network shown in Figure 3 can be divided into three categories according to the position of different layers: input layer 310, hidden layer 320, and output layer 330. Generally, the first layer is the input layer 310, the last layer is the output layer 330, and the intermediate layers between the first and last layers are all hidden layers 320.

[0049] The input layer 310 is used to input data, which may be, for example, a received signal received by a receiver. The hidden layer 320 is used to process the input data, for example, to decompress the received signal. The output layer 330 is used to output the processed output data, for example, to output the decompressed signal.

[0050] As shown in Figure 3, the neural network consists of multiple layers, each containing multiple neurons. The neurons between layers can be fully connected or partially connected. For connected neurons, the output of a neuron in the previous layer can serve as the input of a neuron in the next layer.

[0051] With the continuous development of neural network research, deep learning algorithms have been proposed in recent years. These algorithms introduce more hidden layers into neural networks, forming DNNs (Deep Neural Networks). More hidden layers allow DNNs to better depict complex situations in the real world. Theoretically, the more parameters a model has, the higher its complexity and the greater its "capacity," meaning it can accomplish more complex learning tasks. This type of neural network model is widely used in pattern recognition, signal processing, optimization, and anomaly detection.

[0052] CNN is a deep neural network with convolutional structures, as shown in Figure 4. It can include an input layer 410, a convolutional layer 420, a pooling layer 430, a fully connected layer 440, and an output layer 450.

[0053] Each convolutional layer 420 can include many convolution operators, also known as kernels. Their function can be seen as a filter that extracts specific information from the input signal. A convolution operator can essentially be a parameter matrix, which is usually predefined.

[0054] The parameter values ​​in these parameter matrices need to be obtained through extensive training in practical applications. The parameter matrices formed by the trained parameter values ​​can extract information from the input signal, thereby helping the CNN to make correct predictions.

[0055] When a CNN has multiple convolutional layers, the initial convolutional layers tend to extract more general features, which can also be called low-level features. As the depth of the CNN increases, the features extracted by later convolutional layers become more and more complex.

[0056] Pooling layer 430: Because it is often necessary to reduce the number of training parameters, pooling layers are often introduced periodically after convolutional layers. For example, it can be a pooling layer followed by a convolutional layer as shown in Figure 4, or it can be one or more pooling layers followed by multiple convolutional layers. In signal processing, the sole purpose of pooling layers is to reduce the spatial size of the extracted information.

[0057] After processing by convolutional layers 420 and pooling layers 430, the CNN is still insufficient to output the required information. As mentioned earlier, convolutional layers 420 and pooling layers 430 only extract features and reduce parameters introduced by the input data. However, to generate the final output information (e.g., the bitstream of the original information transmitted by the transmitter), the CNN still needs to utilize fully connected layers 440. Typically, fully connected layers 440 can include multiple hidden layers. The parameters contained in these hidden layers can be pre-trained based on training data relevant to a specific task type. For example, the task type could include decoding data signals received by a receiver, or it could include channel estimation based on pilot signals received by the receiver.

[0058] After the multiple hidden layers in the fully connected layer 440, which is the final layer of the entire CNN, is the output layer 450, used to output the result. Typically, this output layer 450 is equipped with a loss function (e.g., a loss function similar to the cross-entropy loss function for classification) to calculate the prediction error, or to evaluate the degree of difference between the output of the CNN model (also known as the predicted value) and the ideal result (also known as the true value).

[0059] To minimize the loss function, the CNN model needs to be trained. In some implementations, the backpropagation algorithm (BP) can be used to train the CNN model. The BP training process consists of forward propagation and backpropagation. During forward propagation (as shown in Figure 4, the propagation from 410 to 450 is forward propagation), the input data is fed into each layer of the CNN model, processed layer by layer, and then passed to the output layer. If the output result differs significantly from the ideal result, minimizing the loss function is used as the optimization objective, and backpropagation begins (as shown in Figure 4, the propagation from 450 to 410 is backpropagation). The partial derivatives of the optimization objective with respect to the weights of each neuron are calculated layer by layer, forming the gradient of the optimization objective with respect to the weight vector. This gradient serves as the basis for modifying the model parameters, and the CNN training process is completed during parameter modification. When the error reaches the desired value, the CNN training process ends.

[0060] It should be noted that the CNN shown in Figure 4 is only an example of a convolutional neural network. In specific applications, convolutional neural networks can also exist in the form of other network models, and this application embodiment does not limit this.

[0061] The purpose of RNNs is to process sequential data. In traditional neural network models (such as CNNs), the layers are fully connected from the input layer to the hidden layer and then to the output layer, while the nodes within each layer are unconnected. However, this type of ordinary neural network is ineffective for many problems. For example, to predict the next word in a sentence, you generally need to use the preceding words because the words in a sentence are not independent. RNNs are called recurrent neural networks because the current output of a sequence is related to the previous outputs. Specifically, the network memorizes previous information and applies it to the calculation of the current output; that is, the nodes between hidden layers are no longer unconnected but connected, and the input of the hidden layer includes not only the output of the input layer but also the output of the hidden layer at the previous time step. Theoretically, RNNs can process sequential data of any length.

[0062] Training RNNs is similar to training traditional ANNs (Artificial Neural Networks). It also uses the backpropagation (BP) algorithm, but with a key difference. In RNNs, the parameters W, U, and V are shared when the network is unfolded, unlike in traditional neural networks. Furthermore, in gradient descent, the output at each step depends not only on the current step's output but also on the states of the network from several previous steps. For example, at t=4, it needs to propagate three steps forward, adding various gradients to each of those three steps. This learning algorithm is called backpropagation through time (BPTT).

[0063] To address the gradient explosion or vanishing problem in RNNs, a modification was made to the RNN model, resulting in the Long Short-Term Memory (LSTM) model. See Figure 5; LSTM introduces a new memory unit c. t (Also known as "cell state"), it is used for linear cyclic information transmission, while simultaneously outputting information to the external state h of the hidden layer. t At each time t, c t It records historical information up to the current moment. Unlike RNNs, which only consider the most recent state, the memory unit decides which states should be retained and which should be forgotten, thus solving the shortcomings of traditional RNNs in long-term memory.

[0064] Referring again to Figure 5, to achieve the above state selection, the memory unit introduces a gate control mechanism to control the information transmission path, similar to a gate in a data circuit, where "0" represents closed and "1" represents open. The memory unit includes a forget gate 510, an input gate 520, and an output gate 530. The forget gate is used to control the memory unit c from the previous time step.t-1 The input gate controls the candidate state at the current time step, determining how much information needs to be forgotten. The output gate controls the memory cell c at the current moment, indicating how much information needs to be stored. t How much information needs to be output to the external state h? t .

[0065] CSI Feedback

[0066] For network devices to perform reasonable scheduling, terminals need to report downlink CSI. Based on CSI, network devices can determine terminal scheduling information such as transmission layer number, precoding matrix, transmit beam, and modulation / coding scheme. Specifically, terminal CSI reporting is based on the CSI reporting configuration indicated by the network device and the CSI-RS sent by the network device. The uplink resources used by the terminal for CSI reporting and the CSI-RS used for CSI measurement are both indicated by the CSI reporting configuration. Each CSI reporting configuration corresponds to one CSI report, and each CSI report may contain different information such as CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), and channel quality indicator (CQI). This information is obtained based on the CSI-RS signal configured and sent by the network device. For example, the content / information included in the CSI is determined by the report quantity information in the CSI reporting configuration. The report quantity information may indicate one or more of the following report quantities:

[0067] The following are examples of the content / information that a CSI may contain:

[0068] CRI is used to determine the CSI-RS resource currently used for channel measurements and the IMR currently used for interference measurements from multiple CSI-RS resources;

[0069] RI is used to report the recommended number of transport layers;

[0070] PMI is used to determine the recommended precoding matrix from a predefined codebook;

[0071] CQI is used to report the current channel quality;

[0072] The reference signal received power (RSRP) is used to report the RSRP of the synchronization signal / physical broadcast channel block (SSB) or CSI-RS corresponding to the index fed back, so as to determine the beam used for downlink transmission on the network side.

[0073] The layer indicator (LI) is used to report the index of the transport layer associated with the phase-tracking reference signal (PTRS).

[0074] It should be noted that RI / PMI / CQI can be determined based on the signal-to-interference plus noise ratio (SINR) estimated by the terminal. The channel component of SINR is determined based on the non-zero power CSI-RS configured by the network for channel measurement, while the interference component is determined based on the CSI-IM or non-zero power CSI-RS configured by the network for interference measurement. The CSI-RS resources used for channel measurement can include multiple antenna ports to measure the complete downlink channel and thus calculate the CSI.

[0075] Terminal CSI reporting can be done in three ways: periodic CSI, quasi-persistent CSI (or semi-persistent CSI), and aperiodic CSI. Figure 6 shows examples of different CSI reporting methods.

[0076] As shown in Figure 6, periodic CSI is transmitted on the physical uplink control channel (PUCCH). Its CSI reporting configuration is configured by radio resource control (RRC). After receiving the corresponding RRC configuration, the terminal periodically reports CSI.

[0077] As shown in Figure 6, semi-persistent CSI can be transmitted on the PUCCH or the physical uplink shared channel (PUSCH). The CSI reporting configuration corresponding to the CSI transmitted on the PUCCH is pre-configured by RRC signaling and activated or deactivated by MAC layer signaling. The CSI reporting configuration corresponding to the CSI transmitted on the PUSCH is dynamically indicated (activated or deactivated) by DCI signaling. After receiving the activation or indication signaling from the network configuration, the terminal periodically transmits CSI on the PUCCH or PUSCH until it receives the deactivation signaling and stops reporting.

[0078] As shown in Figure 6, the CSI reporting configuration corresponding to non-periodic CSI reporting is pre-configured via RRC signaling. Part of this configuration can be activated via MAC CE, and then the CSI trigger signaling in DCI indicates the CSI reporting configuration used for CSI reporting. After receiving the CSI trigger signaling, the terminal reports the corresponding CSI on the scheduled PUSCH in one go according to the indicated CSI reporting configuration.

[0079] It should be noted that although the above explanation only uses downlink CSI as an example, this application can also be applied to uplink CSI. The principles of uplink CSI and downlink CSI are similar, and will not be repeated here.

[0080] In related technologies, to obtain the complete uplink or downlink CSI, the transmitting end needs to send a complete antenna port (usually corresponding to the number of antennas of the transmitting end) and a reference signal corresponding to the complete bandwidth so that the receiving end can measure the complete channel information, thereby obtaining the uplink or downlink CSI and indicating it to the transmitting end.

[0081] When there are many antennas and a large number of antenna ports at the transmitting end (such as 128 / 256 downlink ports and 16 uplink ports), and the CSI measurement bandwidth is large, frequently transmitting reference signals for the entire antenna port or the entire bandwidth requires a large amount of reference signal resources, which will affect the uplink and downlink data transmission rates.

[0082] With technological advancements, AI / machine learning (ML) techniques can be used to recover the CSI of a complete antenna port or bandwidth from channel information of a partial antenna port or bandwidth, thereby reducing the overhead of the reference signal. Similarly, AI / ML techniques can be used to predict future CSI based on historical CSI, thus achieving CSI prediction. The following example, using the first model, illustrates the relevant solutions.

[0083] Scheme 1, Model 1, estimates the channel information of the entire port using a partial reference signal port.

[0084] The input to the first model is the fifth channel information corresponding to the first reference signal with a first number of ports, and the output of the first model is the sixth channel information corresponding to the first reference signal with a second number of ports. The number of first ports is less than the number of second ports. For example, the number of first ports is 32 and the number of second ports is 128; or the number of first ports is 128 and the number of second ports is 512.

[0085] As shown in Figure 7A, the gray area represents the first reference signal for the first number of ports. For simplicity, the first number of ports is depicted as 3 in Figure 7A, but the actual number of ports can be greater than or significantly greater than 3 (e.g., 32 or 128 as mentioned above). In Figure 7A, the second number of ports represents the total number of ports shown in Figure 7A. As can be seen from Figure 7A, based on the first model, the channel information for all ports can be obtained using the reference signal resources for a portion of the port count.

[0086] It can be seen that Scheme 1 obtains the measurement results of the first reference signal with more ports by measuring the first reference signal with fewer ports, which can reduce the overhead of the first reference signal in the spatial domain.

[0087] Scheme 2, Model 1, estimates the channel information of the full-port and full-frequency-domain sub-bands using a portion of the reference signal port and a portion of the frequency domain sub-band.

[0088] The input to the first model includes seventh channel information and eighth channel information. The seventh channel information is the channel information measured by the terminal device using a first reference signal with a third number of ports on the sixth frequency domain resource. The eighth channel information is the channel information measured by the terminal device using a first reference signal with a fourth number of ports on the seventh frequency domain resource. The output of the first model is the sixth channel information corresponding to the first reference signal with a second number of ports on the eighth frequency domain resource. Specifically, the number of third ports is less than the number of second ports, and the number of fourth ports is less than or equal to the number of second ports. The sixth frequency domain resource includes more frequency domain subbands than the seventh frequency domain resource, the sixth frequency domain resource includes fewer than or equal to the eighth frequency domain resource, and the seventh frequency domain resource includes fewer frequency domain subbands than the eighth frequency domain resource.

[0089] As shown in Figure 7B, the gray area represents the sixth frequency domain resource, and the filled area with diagonal lines represents the seventh frequency domain resource. It can be seen that the number of third ports is 3. The number of fourth ports is the total number of ports. The number of second ports is the total number of ports. The seventh frequency domain resource includes 3 frequency domain sub-bands. As shown in Figure 7B, based on the first model, the channel information for all ports and all frequency domain sub-bands can be obtained using reference signal resources for a portion of the port count and reference signal resources for a portion of the frequency domain sub-bands.

[0090] It should be noted that, for the sake of simplicity, the number of third ports is drawn as 3 in Figure 7B, and the number of frequency sub-bands included in the seventh frequency domain resource drawn in Figure 7 is 3. The actual number of third ports can be greater than or much greater than 3 (e.g., 32 or 128), and the actual number of frequency sub-bands included in the seventh frequency domain resource can be other values.

[0091] As can be seen, compared with Scheme 1, Scheme 2 also considers the frequency domain resources of the first reference signal. By using the first reference signal of the full port in the sparse frequency domain sub-band as the input of the first model, it can help obtain the channel information of the full frequency domain sub-band, reduce the overhead of the first reference signal, and improve the accuracy of the channel information estimation of the full frequency domain sub-band.

[0092] It should be noted that in Scheme 1 and Scheme 2, the first reference signal can be CSI-RS.

[0093] Figure 8 is a schematic flowchart of a wireless communication method provided in an embodiment of this application. The method shown in Figure 8 can be executed by a terminal device and a network device.

[0094] In step S810, the network device sends the first reference signal resource configuration information. The terminal device receives the first reference signal resource configuration information.

[0095] The first reference signal resource configuration information is used to configure K reference signal resources. These K reference signal resources are used to determine the first channel information and / or the second channel information. Here, K is a positive integer.

[0096] In some embodiments, the first channel information is channel information inferred based on a first model. In other words, the output of the first model may include the first channel information.

[0097] In some embodiments, some or all of the K reference signal resources can be used to determine the first channel information. Based on this, the input to the first model may include some or all of the K reference signal resources, and the output of the first model may include the first channel information.

[0098] It should be noted that K reference signal resources can be understood as resources corresponding to K reference signals. Alternatively, K reference signal resources can be understood as K resources corresponding to reference signals.

[0099] The reference signals in this application may include one or more of the following: CSI-RS, demodulation reference symbol (DMRS), and sounding reference signal (SRS). When the reference signals include CSI-RS or DMRS, the K reference signal resources can be downlink reference signal resources, and the first channel information or the second channel information is downlink channel information. When the reference signals include SRS or DMRS, the K reference signal resources can be uplink reference signal resources, and the first channel information or the second channel information is uplink channel information.

[0100] The first model can be used to infer channel information. For example, the first model can be used to achieve one or more of the following: inferring channel information of the entire port based on reference signals of a partial port; inferring channel information of the entire subband based on reference signals of a partial frequency domain subband; and inferring channel information of the second time step based on reference signals of the first time step.

[0101] As one implementation, the first model can be used to obtain measurement information from a larger number of ports using reference signals with a smaller number of ports. For example, the first model can be used to implement the technical solution in Scheme 1 described above. As mentioned above, in Scheme 1, the input to the first model can be the fifth channel information corresponding to the first number of reference signals with a first number of ports, and the output of the first model can be the sixth channel information. In this case, the first channel information in step S810 can include the sixth channel information. Some or all of the K reference signal resources can be resources corresponding to the first number of ports. That is, the resources corresponding to the first number of ports can be configured through the first reference signal resource configuration information.

[0102] As one implementation, the first model can be used to obtain measurement information for more frequency domain sub-bands using reference signals from fewer frequency domain sub-bands. For example, the first model can be used to implement the technical solution in Scheme 2 described above. As mentioned above, in Scheme 2, the inputs of the first model include seventh channel information and eighth channel information. The seventh channel information is the channel information obtained by the terminal device from measuring the first reference signal with a third number of ports on the sixth frequency domain resource, and the eighth channel information is the channel information obtained by the terminal device from measuring the first reference signal with a fourth number of ports on the seventh frequency domain resource. The output of the first model is the sixth channel information. In this case, the first channel information in step S810 can include the sixth channel information. The K reference signal resources can include one or more of the resources corresponding to the sixth frequency domain resource, the third number of ports, the seventh frequency domain resource, and the fourth number of ports. That is, the resources corresponding to one or more of the sixth frequency domain resource, the third number of ports, the seventh frequency domain resource, and the fourth number of ports can be configured through the first reference signal resource configuration information.

[0103] As one implementation method, the first time point can be a historical time point, and the second time point can be a future time point or the current time point. The first model can infer the channel information at the current time point or a future time point based on the reference signal at the historical time point, that is, the first model can achieve CSI prediction.

[0104] In some embodiments, the second channel information is used to monitor the channel information of the first model. For example, the second channel information is obtained through measurement. Alternatively, the second channel information is not obtained based on the first model. The second channel information can serve as a benchmark or basis for judging the performance of the first model.

[0105] Based on this application, reference signal resources for one or more channel information (i.e., first channel information and / or second channel information) can be configured. Reference signal resources for different channel information can perform different functions, such as inference based on a first model or performance monitoring of the first model. Therefore, this application can configure model monitoring and model inference.

[0106] The following describes the K reference signal resources.

[0107] In some embodiments, K can be greater than 1. That is, the first reference signal resource configuration information can configure multiple reference signal resources. The K reference signal resources may include L first reference signal resources and KL second reference signal resources. Where L is a positive integer. L is less than K. The L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information. In other words, a portion of the multiple reference signal resources configured by the first reference signal resource configuration information can be used to determine the first channel information, and a portion of the reference signal resources can be used to determine the second channel information.

[0108] L first reference signal resources are used to infer the first channel information based on the first model. KL second reference signal resources are used to measure and obtain the second channel information. In other words, second measurement information can be obtained based on the measurement of the reference signals of the KL second reference signal resources. This second measurement information can be used to monitor the performance of the first model.

[0109] In some embodiments, when K is greater than 1, the K reference signal resources may belong to the same set of reference signal resources. Alternatively, the K reference signal resources may belong to different sets of reference signal resources.

[0110] The first reference signal resource will be described below.

[0111] The resources corresponding to the first reference signal resource satisfy one or more of the following combinations: the first reference signal resource includes port resources; the first reference signal resource includes frequency domain resources. Examples are given below.

[0112] In some embodiments, the number M of the first ports corresponding to the first reference signal resource is less than the number N of the second ports. Here, the number N of the second ports is the total number of ports. Both M and N are positive integers. In other words, the number M of the first ports is less than the total number of ports, meaning that the port resources included in the first reference signal resource are resources corresponding to only a portion of the ports. Therefore, the first channel information is obtained based on the reference signal resources of a portion of the ports.

[0113] In some embodiments, the first reference signal resource satisfies one of the following: the number of PRBs corresponding to the first frequency domain resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource. The second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands. In other words, the first frequency domain resource corresponds to a portion of the CSI measurement bandwidth or a portion of the CSI reporting subbands.

[0114] The resources corresponding to the second reference signal resource are described below.

[0115] In some embodiments, the resources corresponding to the second reference signal resource satisfy one or more of the following combinations: the second reference signal resource includes port resources; the second reference signal resource includes frequency domain resources. Examples are given below.

[0116] In some embodiments, the number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N. Here, the number of second ports N is the total number of ports, and both P and N are positive integers. In other words, the number of third ports P is less than or equal to the total number of ports, meaning that the port resources included in the second reference signal resource can be some or all of the port resources. The second channel information can be obtained based on the reference signal resources of some or all ports.

[0117] In some embodiments, the second reference signal resource satisfies one of the following: the number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands. In other words, the second frequency domain resource corresponds to part or all of the CSI measurement bandwidth, or the second frequency domain resource corresponds to part or all of the CSI reporting subbands.

[0118] The relationship between the first reference signal resource and the second reference signal resource is explained below.

[0119] In some embodiments, the first reference signal resource and the second reference signal resource are not exactly the same.

[0120] Exemplarily, the ports corresponding to the first reference signal resource and the ports corresponding to the second reference signal resource are not exactly the same. For example, in the case of estimating the full-port channel information through some ports, the ports corresponding to the first reference signal resource and the ports corresponding to the second reference signal resource are different. The following is an example.

[0121] For example, the number of the third ports corresponding to the second reference signal resource is different from the number of the first ports corresponding to the first reference signal resource. If the number of the third ports and the number of the first ports are different, there must be ports with different indexes among the ports corresponding to the first reference signal resource and the ports corresponding to the second reference signal resource.

[0122] Again, the port indexes of the second reference signal resource and the port indexes of the first reference signal resource are not exactly the same. That is, the port indexes of the second reference signal resource can be completely different from the port indexes of the first reference signal resource, or some can be the same and some can be different.

[0123] Again, the pattern of the port indexes corresponding to the first reference signal resource is different from the pattern of the port indexes corresponding to the second reference signal resource. Exemplarily, the port indexes corresponding to the first reference signal resource are the first m ports with smaller indexes, and the port indexes corresponding to the second reference signal resource are the last n ports with larger indexes. Here, both m and n are positive integers.

[0124] Again, the ports corresponding to the second reference signal are full ports, and the ports corresponding to the first reference signal resource are partial ports.

[0125] It should be noted that the port indexes corresponding to the second reference signal resource can be continuous among all N ports. For example, the ports corresponding to the second reference signal resource can be configured by configuring the starting port index and the number of ports.

[0126] It should be noted that the pattern of the port indexes of the first reference signal resource can be predefined or preconfigured. For example, for different N values, there are s predefined patterns, and the network device can configure one of the patterns for the terminal device. Here, s is a positive integer.

[0127] In some embodiments, the first frequency domain resource and the third frequency domain resource are the same. For example, both the first frequency domain resource and the third frequency domain resource are the same as the second frequency domain resource. In this case, the resource overhead can be reduced by reducing the spatial domain resources (port resources).

[0128] In some embodiments, the first frequency-domain resource and the third frequency-domain resource are not completely the same. For example, the first frequency-domain resource and the third frequency-domain resource being not completely the same may include the first frequency-domain resource being smaller than the third frequency-domain resource, or the first frequency-domain resource being larger than the third frequency-domain resource. Among them, the size relationship between the first frequency-domain resource and the third frequency-domain resource can be determined based on one or more of the following: the number of RBs, the number of subbands, etc. For example, if the number of RBs of the first frequency-domain resource is less than the number of RBs of the third frequency-domain resource, then the first frequency-domain resource is smaller than the third frequency-domain resource. Another example is that if the number of subbands of the first frequency-domain resource is greater than the number of subbands of the third frequency-domain resource, then the first frequency-domain resource is larger than the third frequency-domain resource.

[0129] As a possible implementation, when estimating the full-port channel information through some ports, and / or estimating the full-subband channel information through some subbands, the first frequency-domain resource and the third frequency-domain resource are not completely the same, and / or the ports corresponding to the first reference signal resource and the ports corresponding to the second reference signal resource are not completely the same.

[0130] In some embodiments, the number of first ports corresponding to the first reference signal resource and the number of third ports corresponding to the second reference signal resource are the same; and / or the first frequency-domain resource corresponding to the first reference signal resource and the third frequency-domain resource corresponding to the second reference signal resource are the same. For example, when performing CSI prediction, the number of first ports and the number of third ports can be the same, and / or the first frequency-domain resource and the third frequency-domain resource can be the same.

[0131] In some embodiments, the times corresponding to the L first reference signal resources are different and are historical times. The first channel information is predicted through the L first reference signal resources, and the time of the first channel information is the same as the time of the second channel information measured by the K - L second reference signal resources. For example, when performing CSI prediction, the time of the first channel information and the time of the second channel information are the same.

[0132] In some embodiments, the time-domain resources of the K - L second reference signals are within the first time window, and the first time window is the time window during which the CSI predicted by the L first reference signals is valid. For example, when performing CSI prediction, the time-domain resources of the K - L second reference signals are within the first time window.

[0133] In some embodiments, the reference channel corresponding to the first reference signal resource is the first reference signal, and the reference signal corresponding to the second reference signal resource is the second reference signal. The first reference signal and the second reference signal can adopt different periodic configurations. For example, when performing CSI prediction, the first reference signal and the second reference signal adopt different periodic configurations.

[0134] For example, the first reference signal and the second reference signal are reference signals transmitted periodically, and the period of the first reference signal is less than or equal to the period of the second reference signal. For example, the period of the first reference signal is 20 ms, and the period of the second reference signal is 40 ms.

[0135] As another example, the first reference signal is a reference signal transmitted periodically, and the second reference signal is a non-periodic or semi-persistent reference signal. Based on this solution, the monitoring of the first model performance does not need to be performed periodically, which can reduce the transmission overhead and reporting overhead of the reference signal.

[0136] As another example, the first reference signal is a non-periodic reference signal, and the second reference signal is a periodic or semi-persistent reference signal.

[0137] In some embodiments, for example, in the CSI prediction scenario, the times corresponding to the L first reference signal resources are different, and are different from the times corresponding to the K-L second reference signal resources. In this case, L can be an integer greater than 1, and K-L can be 1.

[0138] In some embodiments, the time domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval. For example, in the case of estimating the full-port channel information through partial ports, L can be 1, K-L is 1, and the time domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

[0139] In some embodiments, the first time interval can satisfy one or more of the following: predefined, preconfigured.

[0140] The L first reference signal resources and the K-L second reference signal resources are quasi-co-located (QCL).

[0141] For example, the terminal device can assume that the large-scale channel parameters of the second reference signal are the same as those of the first reference signal. Among them, the large-scale channel parameters can include one or more of spatial reception parameters, Doppler frequency shift, Doppler spread, delay spread, average delay, etc. Therefore, the terminal device can use the large-scale channel parameters obtained from the first reference signal for receiving the second reference signal.

[0142] For example, a terminal device can receive indication information sent by a network device. This indication information is used to indicate the quasi-co-address relationship between the first reference signal and the second reference signal. The terminal device can determine the first reference signal corresponding to the second reference signal based on the quasi-co-address relationship. For instance, the network device can configure the CSI-RS resource of the first reference signal as a quasi-co-address signal to the CSI-RS resource of the second reference signal.

[0143] In some embodiments, the first reference signal resource and the second reference signal resource can be configured through the same message or through different messages. For example, the first reference signal resource and the second reference signal resource can be configured through the same CSI report configuration (CSI-ReportConfig) message. Alternatively, the first reference signal resource and the second reference signal resource can be configured through different CSI-ReportConfig messages, i.e., through two CSI-ReportConfig messages.

[0144] When the first reference signal resource and the second reference signal resource are associated with different CSI-ReportConfig messages, this application provides the following method for associating different CSI-ReportConfig messages.

[0145] Method 1: The two CSI-ReportConfig messages carry the same ID, which is used to identify that the CSI-ReportConfig messages are related, that is, one is the CSI inferred by the AI ​​model, and the other is the CSI report used for AI model monitoring.

[0146] Method 2: Indicate the ID of the associated CSI reporting configuration for monitoring in the CSI-ReportConfig message used for inference, or indicate the ID of the associated CSI reporting configuration for inference in the CSI-ReportConfig message used for monitoring.

[0147] Method 3 uses the first field in the RRC signaling to indicate the association between the CSI reporting configuration used for inference and the CSI reporting configuration used for monitoring. The first field can, for example, be a newly defined field in the RRC message.

[0148] In some embodiments, K equals 1. In this case, the K reference signal resources can be third reference signal resources. That is, the first reference signal resource configuration information is used to configure one third reference signal resource, which can be used to determine the first channel information and / or the second channel information. In other words, the same reference signal resource can be used to determine the first channel information and / or the second channel information.

[0149] In some embodiments, x ports in the third reference signal resource are used to determine first channel information, and y ports in the third reference signal resource are used to determine second channel information. Here, x and y are both positive integers. Exemplarily, x ports in the third reference signal resource are used for model inference, and y ports in the third reference signal resource are used for model monitoring.

[0150] By using x ports in the third reference signal resource to determine the first channel information and y ports to determine the second channel information, this approach can be applied to scenarios where the full-port channel is estimated using only a subset of ports. This configuration simplifies setup, requiring only one resource to complete the inference and / or performance monitoring of the first model.

[0151] In some embodiments, the number of x ports and y ports are determined according to predefined rules.

[0152] In one implementation, the x ports and the y ports are different ports. For example, the x ports are the first x ports of the reference signal resource, and the y ports are the last y ports of the reference signal resource, where y = Nx, and N is the total number of ports. Alternatively, the x ports are the even-indexed ports of the reference signal resource, and the y ports are the odd-indexed ports of the reference signal resource. Or, the x ports are the odd-indexed ports of the reference signal resource, and the y ports are the even-indexed ports of the reference signal resource. As shown in Figure 9A, the total number of ports is N, the x ports are the odd-indexed ports among the N ports, and the y ports are the even-indexed ports among the N ports.

[0153] As another implementation, y ports include x ports. For example, y ports include x ports, as well as ports other than x ports. y ports can be all ports, and x can be a subset of those all ports. As shown in Figure 9B, all ports are N ports, y ports are N ports, and x ports are odd-indexed ports among the N ports.

[0154] As another implementation, some ports of the y ports overlap with some ports of the x ports. For example, the y ports include some ports of the x ports, as well as ports other than the x ports. Alternatively, the x ports include some ports of the y ports, as well as ports other than the y ports. As shown in Figure 9C, the y ports include some ports of the x ports, as well as ports other than the x ports.

[0155] In some implementations, the fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and the fifth frequency domain resource in the third reference signal resource is used to determine the second channel information. This configuration method is mainly used to reduce scenarios where CSI-RS port estimation involves the entire port and full bandwidth of the channel. This method is simple to configure, requiring only one resource to complete the first model performance monitoring.

[0156] The fourth and fifth frequency domain resources can be determined according to predefined rules.

[0157] As one implementation, the fourth and fifth frequency domain resources correspond to different PRB indices, different bandwidths, or different subbands.

[0158] As an alternative implementation, the fifth frequency domain resource includes the fourth frequency domain resource. For example, the fifth frequency domain resource includes both the fourth frequency domain resource and frequency domain resources other than the fourth frequency domain resource. Exemplarily, the fifth frequency domain resource can be the full bandwidth, and the fourth frequency domain resource can be a portion of the bandwidth, a portion of the PRB, or a portion of the subband.

[0159] As another implementation, some frequency domain resources in the fourth and fifth frequency domains overlap. For example, the fifth frequency domain resources include a portion of the bandwidth in the fourth frequency domain resources, as well as bandwidth outside the fourth frequency domain resources. Similarly, the fourth frequency domain resources include a portion of the bandwidth in the fifth frequency domain resources, as well as bandwidth outside the fifth frequency domain resources.

[0160] In some embodiments, first channel information and / or second channel information can be determined by combining frequency domain resources and ports. For example, a fourth frequency domain resource and x ports in a third reference signal resource are used to determine the first channel information. As another example, a fifth frequency domain resource and y ports in a third reference signal resource are used to determine the second channel information.

[0161] The following explains how to determine the performance of the first model using the first channel information and the second channel information.

[0162] In some embodiments, the performance of the first model can be determined by comparing the first channel information and the second channel information. For example, if the deviation between the first channel information and the second channel information is large, the performance of the first model can be considered poor. Conversely, if the first channel information and the second channel information are similar or have a small deviation, the performance of the first model can be considered good.

[0163] For example, the performance of the first model can be determined based on one or more of the following: the difference between the first channel information and the second channel information; the squared generalized cosine similarity (SGCS) between the first channel information and the second channel information. That is, the deviation between the first channel information and the second channel information mentioned above can be represented by the difference and / or SGCS.

[0164] For example, in a scenario where partial port estimation is used to determine the full port channel, the first channel information is the full port channel information, and the second channel information is also the full port channel information. Performance monitoring can be performed based on the following: the difference between the first channel information and the second channel information; and / or, the SGCS between the first channel information and the second channel information.

[0165] For example, in a scenario where partial port estimation is used to determine the full port channel, the first channel information is the full port channel information, and the second channel information is the partial channel information obtained based on the partial port reference signal. Performance monitoring can be performed based on the following: the channel information corresponding to the port in the first channel information and the second channel information, and the difference between the second channel information; and / or, the channel information corresponding to the port in the first channel information and the second channel information, and the SGCS between the second channel information and the first channel information.

[0166] It should be noted that the performance monitoring of the first model described above is from the perspective of the spatial domain port, but it can also be described from the perspective of the frequency domain or the time domain. If described from the perspective of the frequency domain, the first channel information corresponds to all frequency domain resources, and the second channel information corresponds to all frequency domain resources.

[0167] The method embodiments of this application have been described in detail above. The apparatus embodiments of this application are described in detail below. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments. Therefore, any parts not described in detail can be referred to the foregoing method embodiments.

[0168] Figure 10 is a schematic structural diagram of a terminal device 1000 provided in this application. The terminal device 1000 includes a receiving unit 1010.

[0169] The receiving unit 1010 is used to receive first reference signal resource configuration information; wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine first channel information and / or second channel information, and K is a positive integer.

[0170] In some embodiments, the first channel information is channel information inferred based on a first model; the second channel information is channel information used to monitor the performance of the first model.

[0171] In some embodiments, K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, and L is a positive integer.

[0172] In some embodiments, the L first reference signal resources are used to infer the first channel information based on the first model; and the KL second reference signal resources are used to measure the second channel information.

[0173] In some embodiments, the K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

[0174] In some embodiments, the resources corresponding to the first reference signal resource include one or more of the following: the first reference signal resource includes port resources; the first reference signal resource includes frequency domain resources.

[0175] In some embodiments, the number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

[0176] In some embodiments, the first reference signal resource satisfies one of the following: the number of PRBs corresponding to the first frequency domain resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

[0177] In some embodiments, the resources corresponding to the second reference signal resource include one or more of the following: the second reference signal resource includes port resources; the second reference signal resource includes frequency domain resources.

[0178] In some embodiments, the number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

[0179] In some embodiments, the second reference signal resource satisfies one of the following: the number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

[0180] In some embodiments, the first reference signal resource and the second reference signal resource are not exactly the same.

[0181] In some embodiments, the port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: the number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; the port index of the second reference signal resource is not completely the same as the port index of the first reference signal resource; the pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

[0182] In some embodiments, the first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

[0183] In some embodiments, the first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

[0184] In some embodiments, the time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

[0185] In some embodiments, the first time interval satisfies one or more of the following: predefined, preconfigured.

[0186] In some embodiments, the L first reference signal resources and the KL second reference signal resources are quasi-co-located.

[0187] In some embodiments, the first reference signal resource and the second reference signal resource are configured through the same CSI-ReportConfig message; or, the first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

[0188] In some embodiments, K equals 1, and the K reference signal resources are third reference signal resources.

[0189] In some embodiments, the third reference signal resource satisfies one or more of the following combinations: x ports in the third reference signal resource are used to determine the first channel information, y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; a fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and a fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

[0190] In some embodiments, the x ports and the y ports satisfy one or more of the following: the x ports and the y ports are different ports; the y ports include the x ports; and some ports of the y ports and the x ports overlap.

[0191] In some embodiments, the fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: the fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; the fifth frequency domain resource includes the fourth frequency domain resource; and some frequency domain resources in the fourth frequency domain resource and the fifth frequency domain resource overlap.

[0192] In some embodiments, the second channel information is used to monitor the performance of a first model, the performance of which is determined based on one or more of the following: the difference between the first channel information and the second channel information; the SGCS between the first channel information and the second channel information.

[0193] In some embodiments, the first model is used to implement one or more of the following: inferring channel information of the entire port based on reference signals of a portion of the port; and inferring channel information of the second time based on reference signals of the first time.

[0194] In some embodiments, the first model is an AI / ML model.

[0195] In an optional embodiment, the receiving unit 1010 may be a transceiver 1230. The terminal device 1000 may also include a memory 1220 and a processor 1210, as shown in FIG12.

[0196] Figure 11 is a schematic structural diagram of a network device 1100 provided in an embodiment of this application. The network device 1100 includes a transmitting unit 1110.

[0197] The transmitting unit 1110 is used to transmit first reference signal resource configuration information to the terminal device; wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine first channel information and / or second channel information, and K is a positive integer.

[0198] In some embodiments, the first channel information is channel information inferred based on a first model; the second channel information is channel information used to monitor the performance of the first model.

[0199] In some embodiments, K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, and L is a positive integer.

[0200] In some embodiments, the L first reference signal resources are used to infer the first channel information based on the first model; and the KL second reference signal resources are used to measure the second channel information.

[0201] In some embodiments, the K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

[0202] In some embodiments, the resources corresponding to the first reference signal resource include one or more of the following: the first reference signal resource includes port resources; the first reference signal resource includes frequency domain resources.

[0203] In some embodiments, the number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

[0204] In some embodiments, the first reference signal resource satisfies one of the following: the number of PRBs corresponding to the first frequency domain resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

[0205] In some embodiments, the resources corresponding to the second reference signal resource include one or more of the following: the second reference signal resource includes port resources; the second reference signal resource includes frequency domain resources.

[0206] In some embodiments, the number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

[0207] In some embodiments, the second reference signal resource satisfies one of the following: the number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; the bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; the number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

[0208] In some embodiments, the first reference signal resource and the second reference signal resource are not exactly the same.

[0209] In some embodiments, the port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: the number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; the port index of the second reference signal resource is not completely the same as the port index of the first reference signal resource; the pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

[0210] In some embodiments, the first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

[0211] In some embodiments, the first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

[0212] In some embodiments, the time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

[0213] In some embodiments, the first time interval satisfies one or more of the following: predefined, preconfigured.

[0214] In some embodiments, the L first reference signal resources and the KL second reference signal resources are quasi-co-located.

[0215] In some embodiments, the first reference signal resource and the second reference signal resource are configured through the same CSI-ReportConfig message; or, the first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

[0216] In some embodiments, K equals 1, and the K reference signal resources are third reference signal resources.

[0217] In some embodiments, the third reference signal resource satisfies one or more of the following combinations: x ports in the third reference signal resource are used to determine the first channel information, y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; a fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and a fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

[0218] In some embodiments, the x ports and the y ports satisfy one or more of the following: the x ports and the y ports are different ports; the y ports include the x ports; and some ports of the y ports and the x ports overlap.

[0219] In some embodiments, the fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: the fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; the fifth frequency domain resource includes the fourth frequency domain resource; and some frequency domain resources in the fourth frequency domain resource and the fifth frequency domain resource overlap.

[0220] In some embodiments, the second channel information is used to monitor the performance of a first model, the performance of which is determined based on one or more of the following: the difference between the first channel information and the second channel information; the SGCS between the first channel information and the second channel information.

[0221] In some embodiments, the first model is used to implement one or more of the following: inferring channel information of the entire port based on reference signals of a portion of the port; and inferring channel information of the second time based on reference signals of the first time.

[0222] In some embodiments, the first model is an AI / ML model.

[0223] In an optional embodiment, the transmitting unit 1110 may be a transceiver 1230. The network device 1100 may also include a memory 1220 and a processor 1210, as shown in FIG12.

[0224] Figure 12 is a schematic structural diagram of a communication apparatus according to an embodiment of this application. The dashed lines in Figure 12 indicate that the unit or module is optional. This apparatus 1200 can be used to implement the methods described in the above method embodiments. The apparatus 1200 can be a chip, a terminal device, or a network device.

[0225] Apparatus 1200 may include one or more processors 1210. The processor 1210 may support apparatus 1200 in implementing the methods described in the preceding method embodiments. The processor 1210 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0226] The apparatus 1200 may further include one or more memories 1220. The memories 1220 store a program that can be executed by the processor 1210, causing the processor 1210 to perform the methods described in the preceding method embodiments. The memories 1220 may be independent of the processor 1210 or integrated within the processor 1210.

[0227] The device 1200 may also include a transceiver 1230. The processor 1210 can communicate with other devices or chips via the transceiver 1230. For example, the processor 1210 can send and receive data with other devices or chips via the transceiver 1230.

[0228] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0229] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0230] This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0231] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0232] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0233] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0234] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0235] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0236] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0237] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0238] In the embodiments of this application, "comprising" can refer to direct inclusion or indirect inclusion. Optionally, "comprising" mentioned in the embodiments of this application can be replaced with "indicating" or "used to determine". For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B".

[0239] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0240] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0241] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0242] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0243] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0244] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication method, characterized in that, include: The terminal device receives the first reference signal resource configuration information; Wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine the first channel information and / or the second channel information, and K is a positive integer.

2. The method according to claim 1, characterized in that, The first channel information is channel information inferred based on the first model; The second channel information is used to monitor the performance of the first model.

3. The method according to claim 1 or 2, characterized in that, The K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; Wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, where L is a positive integer.

4. The method according to claim 3, characterized in that, The L first reference signal resources are used to infer the first channel information based on the first model; The KL second reference signal resources are used to measure and obtain the second channel information.

5. The method according to claim 3 or 4, characterized in that, The K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

6. The method according to any one of claims 3-5, characterized in that, The resources corresponding to the first reference signal resource include one or more of the following combinations: The first reference signal resource includes port resources; The first reference signal resource includes frequency domain resources.

7. The method according to any one of claims 3-6, characterized in that, The number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

8. The method according to any one of claims 3-7, characterized in that, The first reference signal resource satisfies one of the following: The number of physical resource blocks (PRBs) corresponding to the first frequency domain resource corresponding to the first reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource. The bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire channel state information (CSI) measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

9. The method according to any one of claims 3-8, characterized in that, The resources corresponding to the second reference signal resource include one or more of the following combinations: The second reference signal resource includes port resources; The second reference signal resource includes frequency domain resources.

10. The method according to any one of claims 3-9, characterized in that, The number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

11. The method according to any one of claims 3-10, characterized in that, The second reference signal resource satisfies one of the following: The number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; The bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

12. The method according to any one of claims 3-11, characterized in that, The first reference signal resource and the second reference signal resource are not completely identical.

13. The method according to claim 12, characterized in that, The port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: The number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; The port index of the second reference signal resource is not exactly the same as the port index of the first reference signal resource; The pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

14. The method according to claim 12 or 13, characterized in that, The first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

15. The method according to claim 14, characterized in that, The first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

16. The method according to any one of claims 12-15, characterized in that, The time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

17. The method according to claim 16, characterized in that, The first time interval satisfies one or more of the following: predefined, preconfigured.

18. The method according to any one of claims 3-17, characterized in that, The L first reference signal resources and the KL second reference signal resources are quasi-co-located.

19. The method according to any one of claims 3-18, characterized in that, The first reference signal resource and the second reference signal resource are configured through the same CSI report configuration CSI-ReportConfig message; or, The first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

20. The method according to claim 1 or 2, characterized in that, K equals 1, and the K reference signal resources are the third reference signal resources.

21. The method according to claim 20, characterized in that, The third reference signal resource satisfies one or more of the following: x ports in the third reference signal resource are used to determine the first channel information, and y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; The fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and the fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

22. The method according to claim 21, characterized in that, The x ports and the y ports satisfy one or more of the following: The x ports and the y ports are different ports; The y ports include the x ports; Some of the y ports and x ports overlap.

23. The method according to claim 21 or 22, characterized in that, The fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: The fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; The fifth frequency domain resource includes the fourth frequency domain resource; The fourth frequency domain resources and the fifth frequency domain resources partially overlap.

24. The method according to any one of claims 1-23, characterized in that, The second channel information is used to monitor the performance of the first model, which is determined based on one or more of the following: The difference between the first channel information and the second channel information; The squared generalized cosine similarity (SGCS) between the first channel information and the second channel information.

25. The method according to claim 2, 4 or 24, characterized in that, The first model is used to achieve one or more of the following: Infer the channel information of the entire port based on the reference signal of a portion of the port; Channel information at the second moment is inferred from the reference signal at the first moment.

26. The method according to claim 2, 4, 24 or 25, characterized in that, The first model is an artificial intelligence (AI) / machine learning (ML) model.

27. A wireless communication method, characterized in that, include: The network device sends the first reference signal resource configuration information to the terminal device; Wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine the first channel information and / or the second channel information, and K is a positive integer.

28. The method according to claim 27, characterized in that, The first channel information is channel information inferred based on the first model; The second channel information is used to monitor the performance of the first model.

29. The method according to claim 27 or 28, characterized in that, The K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; Wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, where L is a positive integer.

30. The method according to claim 29, characterized in that, The L first reference signal resources are used to infer the first channel information based on the first model; The KL second reference signal resources are used to measure and obtain the second channel information.

31. The method according to claim 29 or 30, characterized in that, The K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

32. The method according to any one of claims 29-31, characterized in that, The resources corresponding to the first reference signal resource include one or more of the following combinations: The first reference signal resource includes port resources; The first reference signal resource includes frequency domain resources.

33. The method according to any one of claims 29-32, characterized in that, The number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

34. The method according to any one of claims 29-33, characterized in that, The first reference signal resource satisfies one of the following: The number of physical resource blocks (PRBs) corresponding to the first frequency domain resource corresponding to the first reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource. The bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire channel state information (CSI) measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

35. The method according to any one of claims 29-34, characterized in that, The resources corresponding to the second reference signal resource include one or more of the following combinations: The second reference signal resource includes port resources; The second reference signal resource includes frequency domain resources.

36. The method according to any one of claims 29-35, characterized in that, The number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

37. The method according to any one of claims 29-36, characterized in that, The second reference signal resource satisfies one of the following: The number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; The bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

38. The method according to any one of claims 29-37, characterized in that, The first reference signal resource and the second reference signal resource are not completely identical.

39. The method according to claim 38, characterized in that, The port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: The number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; The port index of the second reference signal resource is not exactly the same as the port index of the first reference signal resource; The pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

40. The method according to claim 38 or 39, characterized in that, The first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

41. The method according to claim 40, characterized in that, The first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

42. The method according to any one of claims 38-41, characterized in that, The time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

43. The method according to claim 42, characterized in that, The first time interval satisfies one or more of the following: predefined, preconfigured.

44. The method according to any one of claims 29-43, characterized in that, The L first reference signal resources and the KL second reference signal resources are quasi-co-located.

45. The method according to any one of claims 29-44, characterized in that, The first reference signal resource and the second reference signal resource are configured through the same CSI report configuration CSI-ReportConfig message; or, The first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

46. ​​The method according to claim 27 or 28, characterized in that, K equals 1, and the K reference signal resources are the third reference signal resources.

47. The method according to claim 46, characterized in that, The third reference signal resource satisfies one or more of the following: x ports in the third reference signal resource are used to determine the first channel information, and y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; The fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and the fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

48. The method according to claim 47, characterized in that, The x ports and the y ports satisfy one or more of the following: The x ports and the y ports are different ports; The y ports include the x ports; Some of the y ports and x ports overlap.

49. The method according to claim 47 or 48, characterized in that, The fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: The fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; The fifth frequency domain resource includes the fourth frequency domain resource; The fourth frequency domain resources and the fifth frequency domain resources partially overlap.

50. The method according to any one of claims 27-49, characterized in that, The second channel information is used to monitor the performance of the first model, which is determined based on one or more of the following: The difference between the first channel information and the second channel information; The squared generalized cosine similarity (SGCS) between the first channel information and the second channel information.

51. The method according to claim 28, 30 or 50, characterized in that, The first model is used to achieve one or more of the following: Infer the channel information of the entire port based on the reference signal of a portion of the port; Channel information at the second moment is inferred from the reference signal at the first moment.

52. The method according to claim 28, 30, 50 or 51, characterized in that, The first model is an artificial intelligence (AI) / machine learning (ML) model.

53. A terminal device, characterized in that, include: The receiving unit is used to receive the first reference signal resource configuration information; Wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine the first channel information and / or the second channel information, and K is a positive integer.

54. The terminal device according to claim 53, characterized in that, The first channel information is channel information inferred based on the first model; The second channel information is used to monitor the performance of the first model.

55. The terminal device according to claim 53 or 54, characterized in that, The K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; Wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, where L is a positive integer.

56. The terminal device according to claim 55, characterized in that, The L first reference signal resources are used to infer the first channel information based on the first model; The KL second reference signal resources are used to measure and obtain the second channel information.

57. The terminal device according to claim 55 or 56, characterized in that, The K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

58. The terminal device according to any one of claims 55-57, characterized in that, The resources corresponding to the first reference signal resource include one or more of the following combinations: The first reference signal resource includes port resources; The first reference signal resource includes frequency domain resources.

59. The terminal device according to any one of claims 55-58, characterized in that, The number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

60. The terminal device according to any one of claims 55-59, characterized in that, The first reference signal resource satisfies one of the following: The number of physical resource blocks (PRBs) corresponding to the first frequency domain resource corresponding to the first reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource. The bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire channel state information (CSI) measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

61. The terminal device according to any one of claims 55-60, characterized in that, The resources corresponding to the second reference signal resource include one or more of the following combinations: The second reference signal resource includes port resources; The second reference signal resource includes frequency domain resources.

62. The terminal device according to any one of claims 55-61, characterized in that, The number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

63. The terminal device according to any one of claims 55-62, characterized in that, The second reference signal resource satisfies one of the following: The number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; The bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

64. The terminal device according to any one of claims 55-63, characterized in that, The first reference signal resource and the second reference signal resource are not completely identical.

65. The terminal device according to claim 64, characterized in that, The port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: The number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; The port index of the second reference signal resource is not exactly the same as the port index of the first reference signal resource; The pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

66. The terminal device according to claim 64 or 65, characterized in that, The first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

67. The terminal device according to claim 66, characterized in that, The first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

68. The terminal device according to any one of claims 64-67, characterized in that, The time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

69. The terminal device according to claim 68, characterized in that, The first time interval satisfies one or more of the following: predefined, preconfigured.

70. The terminal device according to any one of claims 55-69, characterized in that, The L first reference signal resources and the KL second reference signal resources are quasi-co-located.

71. The terminal device according to any one of claims 55-70, characterized in that, The first reference signal resource and the second reference signal resource are configured through the same CSI report configuration CSI-ReportConfig message; or, The first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

72. The terminal device according to claim 53 or 54, characterized in that, K equals 1, and the K reference signal resources are the third reference signal resources.

73. The terminal device according to claim 72, characterized in that, The third reference signal resource satisfies one or more of the following: x ports in the third reference signal resource are used to determine the first channel information, and y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; The fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and the fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

74. The terminal device according to claim 73, characterized in that, The x ports and the y ports satisfy one or more of the following: The x ports and the y ports are different ports; The y ports include the x ports; Some of the y ports and x ports overlap.

75. The terminal device according to claim 73 or 74, characterized in that, The fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: The fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; The fifth frequency domain resource includes the fourth frequency domain resource; The fourth frequency domain resources and the fifth frequency domain resources partially overlap.

76. The terminal device according to any one of claims 53-75, characterized in that, The second channel information is used to monitor the performance of the first model, which is determined based on one or more of the following: The difference between the first channel information and the second channel information; The squared generalized cosine similarity (SGCS) between the first channel information and the second channel information.

77. The terminal device according to claim 54, 56 or 76, characterized in that, The first model is used to achieve one or more of the following: Infer the channel information of the entire port based on the reference signal of a portion of the port; Channel information at the second moment is inferred from the reference signal at the first moment.

78. The terminal device according to claim 54, 56, 76 or 77, characterized in that, The first model is an artificial intelligence (AI) / machine learning (ML) model.

79. A network device, characterized in that, include: The transmitting unit is used to transmit first reference signal resource configuration information to the terminal device; Wherein, the first reference signal resource configuration information is used to configure K reference signal resources, the K reference signal resources are used to determine the first channel information and / or the second channel information, and K is a positive integer.

80. The network device according to claim 79, characterized in that, The first channel information is channel information inferred based on the first model; The second channel information is used to monitor the performance of the first model.

81. The network device according to claim 79 or 80, characterized in that, The K is greater than 1, and the K reference signal resources include: L first reference signal resources and KL second reference signal resources; Wherein, the L first reference signal resources are used to determine the first channel information, and the KL second reference signal resources are used to determine the second channel information, where L is a positive integer.

82. The network device according to claim 81, characterized in that, The L first reference signal resources are used to infer the first channel information based on the first model; The KL second reference signal resources are used to measure and obtain the second channel information.

83. The network device according to claim 81 or 82, characterized in that, The K reference signal resources belong to the same set of reference signal resources or different sets of reference signal resources.

84. The network device according to any one of claims 81-83, characterized in that, The resources corresponding to the first reference signal resource include one or more of the following combinations: The first reference signal resource includes port resources; The first reference signal resource includes frequency domain resources.

85. The network device according to any one of claims 81-84, characterized in that, The number of first ports M corresponding to the first reference signal resource is less than the number of second ports N, where the number of second ports N is the total number of ports, and both M and N are positive integers.

86. The network device according to any one of claims 81-85, characterized in that, The first reference signal resource satisfies one of the following: The number of physical resource blocks (PRBs) corresponding to the first frequency domain resource corresponding to the first reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource. The bandwidth of the first frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the first frequency domain resource is less than or equal to the number of subcarriers of the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire channel state information (CSI) measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

87. The network device according to any one of claims 81-86, characterized in that, The resources corresponding to the second reference signal resource include one or more of the following combinations: The second reference signal resource includes port resources; The second reference signal resource includes frequency domain resources.

88. The network device according to any one of claims 81-87, characterized in that, The number of third ports P corresponding to the second reference signal resource is less than or equal to the number of second ports N, where the number of second ports N is the total number of ports, and both P and N are positive integers.

89. The network device according to any one of claims 81-88, characterized in that, The second reference signal resource satisfies one of the following: The number of PRBs corresponding to the third frequency domain resource corresponding to the second reference signal resource is less than or equal to the number of PRBs corresponding to the second frequency domain resource; The bandwidth of the third frequency domain resource is less than or equal to the bandwidth of the second frequency domain resource; The number of subcarriers corresponding to the third frequency domain resource is less than or equal to the number of subcarriers corresponding to the second frequency domain resource; Wherein, the second frequency domain resource satisfies one of the following: the second frequency domain resource is the entire CSI measurement bandwidth; the second frequency domain resource is all CSI reporting subbands.

90. The network device according to any one of claims 81-89, characterized in that, The first reference signal resource and the second reference signal resource are not completely identical.

91. The network device according to claim 90, characterized in that, The port corresponding to the first reference signal resource and the port corresponding to the second reference signal resource satisfy one or more of the following conditions: The number of third ports corresponding to the second reference signal resource is different from the number of first ports corresponding to the first reference signal resource; The port index of the second reference signal resource is not exactly the same as the port index of the first reference signal resource; The pattern of the port index corresponding to the first reference signal resource is different from the pattern of the port index corresponding to the second reference signal resource.

92. The network device according to claim 90 or 91, characterized in that, The first frequency domain resource corresponding to the first reference signal resource is not completely the same as the third frequency domain resource corresponding to the second reference signal resource.

93. The network device according to claim 92, characterized in that, The first frequency domain resource is less than the third frequency domain resource, or the first frequency domain resource is greater than the third frequency domain resource.

94. The network device according to any one of claims 90-93, characterized in that, The time-domain transmission interval between the first reference signal resource and the second reference signal resource is less than or equal to the first time interval.

95. The network device according to claim 94, characterized in that, The first time interval satisfies one or more of the following: predefined, preconfigured.

96. The network device according to any one of claims 81-95, characterized in that, The L first reference signal resources and the KL second reference signal resources are quasi-co-located.

97. The network device according to any one of claims 81-96, characterized in that, The first reference signal resource and the second reference signal resource are configured through the same CSI report configuration CSI-ReportConfig message; or, The first reference signal resource and the second reference signal resource are configured through different CSI-ReportConfig messages.

98. The network device according to claim 79 or 80, characterized in that, K equals 1, and the K reference signal resources are the third reference signal resources.

99. The network device according to claim 98, characterized in that, The third reference signal resource satisfies one or more of the following: x ports in the third reference signal resource are used to determine the first channel information, and y ports in the third reference signal resource are used to determine the second channel information, where x and y are both positive integers; The fourth frequency domain resource in the third reference signal resource is used to determine the first channel information, and the fifth frequency domain resource in the third reference signal resource is used to determine the second channel information.

100. The network device according to claim 99, characterized in that, The x ports and the y ports satisfy one or more of the following: The x ports and the y ports are different ports; The y ports include the x ports; Some of the y ports and x ports overlap.

101. The network device according to claim 99 or 100, characterized in that, The fourth frequency domain resource and the fifth frequency domain resource satisfy one or more of the following: The fourth frequency domain resource and the fifth frequency domain resource correspond to different PRB indices, different bandwidths, or different subbands; The fifth frequency domain resource includes the fourth frequency domain resource; The fourth frequency domain resources and the fifth frequency domain resources partially overlap.

102. The network device according to any one of claims 79-101, characterized in that, The second channel information is used to monitor the performance of the first model, which is determined based on one or more of the following: The difference between the first channel information and the second channel information; The squared generalized cosine similarity (SGCS) between the first channel information and the second channel information.

103. The network device according to claim 80, 82 or 102, characterized in that, The first model is used to achieve one or more of the following: Infer the channel information of the entire port based on the reference signal of a portion of the port; Channel information at the second moment is inferred from the reference signal at the first moment.

104. The network device according to claim 80, 82, 102 or 103, characterized in that, The first model is an artificial intelligence (AI) / machine learning (ML) model.

105. A terminal device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or send signals so that the terminal device performs the method as described in any one of claims 1-26.

106. A network device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the network device performs the method as described in any one of claims 27-52.

107. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the method as described in any one of claims 1-52.

108. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-52.

109. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-52.

110. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-52.

111. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1-52.

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