Wireless communication method and device

Abstract

Provided in embodiments of the present application are a wireless communication method and device, a terminal device can support uplink spatial filter prediction based on a downlink measurement result, and / or the terminal device can support downlink spatial filter prediction based on an uplink measurement result. Therefore, the overhead and time delay of uplink spatial filter management and / or downlink spatial filter management can be reduced. The wireless communication method comprises the following steps: the terminal equipment sends first capability information; wherein the first capability information is used for indicating whether the terminal equipment supports uplink spatial filter prediction based on a downlink measurement result, and / or the first capability information is used for indicating whether the terminal equipment supports downlink spatial filter prediction based on an uplink measurement result.

Description

Wireless communication method and device Technical Field

[0001] The present invention relates to the field of communications, and more specifically, to a method and device for wireless communications. Background Art

[0002] In the New Radio (NR) system, millimeter wave frequency band communications are introduced, and the corresponding beam management mechanism is also introduced, which can be specifically divided into uplink and downlink beam management. Among them, downlink beam management may include: downlink beam scanning, optimal beam reporting on the terminal side, downlink beam indication on the network side and other processes. Uplink beam management may include: uplink beam scanning, uplink beam indication on the network side and other processes. Specifically, for downlink beam management, the network device scans all transmit beam directions through the downlink reference signal, and the terminal device can use different receive beams for measurement, so that all beam pairs can be traversed. For uplink beam management, the terminal device scans all transmit beam directions through the uplink reference signal, and the network device can use different receive beams for measurement, so that all beam pairs can be traversed.

[0003] It can be seen that in uplink beam management and downlink beam management, it is necessary to traverse all combinations of transmit beams and receive beams to select the optimal beam, which will bring a lot of overhead and delay.

[0004] Summary of the Invention

[0005] An embodiment of the present application provides a method and device for wireless communication, wherein a terminal device can support uplink spatial filter prediction based on downlink measurement results, and / or the terminal device can support downlink spatial filter prediction based on uplink measurement results, thereby reducing the overhead and latency of uplink spatial filter management and / or downlink spatial filter management.

[0006] In a first aspect, a wireless communication method is provided, the method comprising:

[0007] The terminal device sends first capability information; wherein, the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, and / or, the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

[0008] In a second aspect, a wireless communication method is provided, the method comprising:

[0009] The network device receives first capability information; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, and / or, the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

[0010] According to a third aspect, a wireless communication method is provided, the method comprising:

[0011] The first communication device inputs a first measurement data set into a first network model and outputs a first prediction data set;

[0012] The first measurement data set includes at least one of the following: link quality information obtained by measurement based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained by measurement based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters, and identification information of K1 uplink receive spatial filters, where K1 is a positive integer; or

[0013] The first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0014] In a fourth aspect, a terminal device is provided, which is used to execute the method in the first aspect. Specifically, the terminal device includes a functional module for executing the method in the first aspect.

[0015] In a fifth aspect, a network device is provided, wherein the network device is configured to execute the method in the second aspect. Specifically, the network device includes a functional module configured to execute the method in the second aspect.

[0016] In a sixth aspect, a communication device is provided, which is a first communication device and is configured to execute the method in the third aspect. Specifically, the communication device includes a functional module configured to execute the method in the third aspect.

[0017] In the seventh aspect, a terminal device is provided, which includes a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the terminal device executes the method in the above-mentioned first aspect.

[0018] In an eighth aspect, a network device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the network device executes the method in the above-mentioned second aspect.

[0019] In the ninth aspect, a communication device is provided, which is a first communication device, and the communication device includes a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the communication device executes the method in the above-mentioned third aspect.

[0020] In a tenth aspect, a device is provided for implementing the method of any one of the first to third aspects above. Specifically, the device includes: a processor for calling and running a computer program from a memory, so that a device equipped with the device executes the method of any one of the first to third aspects above.

[0021] In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to third aspects above.

[0022] In a twelfth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the above-mentioned first to third aspects.

[0023] In a thirteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to third aspects above.

[0024] Through the technical solutions of the first and second aspects above, the terminal device can support uplink spatial filter prediction based on downlink measurement results, and the terminal device can implement uplink spatial filter prediction based on downlink measurement results based on the first network model; and / or, the terminal device can support downlink spatial filter prediction based on uplink measurement results, and the network device can implement downlink spatial filter prediction based on uplink measurement results based on the second network model, thereby reducing the overhead and delay of uplink spatial filter management and / or downlink spatial filter management.

[0025] Through the technical solution of the third aspect above, the first communication device can implement uplink spatial filter prediction based on the downlink measurement results based on the first network model, or the first communication device can implement downlink spatial filter prediction based on the uplink measurement results based on the first network model, thereby reducing the overhead and delay of uplink spatial filter management and / or downlink spatial filter management. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0027] FIG2 is a schematic diagram of the connection of neurons in a neural network provided by the present application.

[0028] FIG3 is a schematic structural diagram of a neural network provided in this application.

[0029] FIG4 is a schematic diagram of a convolutional neural network provided in this application.

[0030] FIG5 is a schematic structural diagram of an LSTM unit provided in this application.

[0031] FIG6 is a schematic diagram of a downlink beam scanning process provided in the present application.

[0032] FIG7 is a schematic diagram of another downlink beam scanning process provided in the present application.

[0033] FIG8 is a schematic diagram of another downlink beam scanning process provided in the present application.

[0034] FIG9 is a schematic diagram of a spatial domain beam prediction model provided in this application.

[0035] FIG10 is a schematic diagram of another spatial domain beam prediction model provided in this application.

[0036] FIG11 is a schematic diagram of a time domain beam prediction model provided in this application.

[0037] FIG12 is a schematic diagram of downlink beam management provided in the present application.

[0038] FIG13 is a schematic diagram of uplink beam management provided in the present application.

[0039] FIG14 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0040] Figure 15 is a schematic diagram of downlink beam (pair) measurement and uplink beam (pair) prediction provided according to an embodiment of the present application.

[0041] FIG16 is a schematic diagram of an uplink beam (pair) prediction provided according to an embodiment of the present application.

[0042] FIG17 is a schematic diagram of another uplink beam (pair) prediction provided according to an embodiment of the present application.

[0043] Figure 18 is a flowchart of downlink beam (pair) measurement and uplink beam (pair) prediction provided according to an embodiment of the present application.

[0044] Figure 19 is a schematic diagram of uplink beam (pair) measurement and downlink beam (pair) prediction provided according to an embodiment of the present application.

[0045] Figure 20 is a schematic diagram of downlink beam (pair) prediction provided according to an embodiment of the present application.

[0046] Figure 21 is a schematic diagram of another downlink beam (pair) prediction provided according to an embodiment of the present application.

[0047] Figure 22 is a flowchart of uplink beam (pair) measurement and downlink beam (pair) prediction provided according to an embodiment of the present application.

[0048] Figure 23 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

[0049] Figure 24 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0050] Figure 25 is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0051] Figure 26 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0052] Figure 27 is a schematic block diagram of another communication device provided according to an embodiment of the present application.

[0053] Figure 28 is a schematic block diagram of a device provided according to an embodiment of the present application.

[0054] Figure 29 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0055] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Internet of Things (IoT), Wireless Fidelity (WFI) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, sixth-generation communication (6G) system or other communication systems.

[0057] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, sidelink (SL) communication, vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0058] In some embodiments, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, an independent (SA) networking scenario, or a non-standalone (NSA) networking scenario.

[0059] In some embodiments, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiments of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0060] In some embodiments, the communication system in the embodiments of the present application can be applied to the FR1 frequency band (corresponding to the frequency band range of 410MHz to 7.125GHz), can also be applied to the FR2 frequency band (corresponding to the frequency band range of 24.25GHz to 52.6GHz), and can also be applied to new frequency bands such as high-frequency bands corresponding to the frequency band range of 52.6GHz to 71GHz or the frequency band range of 71GHz to 114.25GHz.

[0061] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0062] The terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0063] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0064] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city or a wireless terminal device in a smart home, an in-vehicle communication device, a wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SoC), etc.

[0065] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0066] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a network device or base station (gNB) or a transmission reception point (TRP) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0067] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station set up in a location such as land or water.

[0068] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0069] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0070] FIG1 exemplarily shows a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0071] In some embodiments, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0072] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0073] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0074] It should be understood that this document relates to a first communication device and a second communication device. The first communication device can be a terminal device, such as a mobile phone, machine facilities, customer premises equipment (CPE), industrial equipment, vehicles, etc.; the second communication device can be a peer communication device of the first communication device, such as a network device, mobile phone, industrial equipment, vehicles, etc. In the embodiments of the present application, the first communication device can be a terminal device, and the second communication device can be a network device (i.e., uplink communication or downlink communication); alternatively, the first communication device can be a first terminal, and the second communication device can be a second terminal (i.e., sideline communication).

[0075] The terms used in the embodiments of this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth," etc. in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0076] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0077] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0078] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0079] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may be an evolution of an existing LTE protocol, NR protocol, Wi-Fi protocol, or a protocol related to other communication systems. The present application does not limit the protocol type.

[0080] To facilitate a better understanding of the embodiments of the present application, the neural network and machine learning related to the present application are explained.

[0081] A neural network (NN) is a computational model consisting of multiple interconnected neuron nodes, where the connections between nodes represent weighted values ​​from input signals to output signals, called weights. Each node performs weighted summation (SUM) on different input signals and outputs them through a specific activation function (f). Figure 2 is a schematic diagram of a neuron structure, where a1, a2, …, an represent input signals, w1, w2, …, wn represent weights, f represents the activation function, and t represents the output.

[0082] A simple neural network, shown in Figure 3, consists of an input layer, hidden layers, and an output layer. By using different connections, weights, and activation functions among multiple neurons, different outputs can be generated, thereby fitting the mapping relationship from input to output. Each node in the previous level is connected to all nodes in the next level. This neural network is a fully connected neural network, also known as a deep neural network (DNN).

[0083] The basic structure of a convolutional neural network (CNN) consists of an input layer, multiple convolutional layers, multiple pooling layers, a fully connected layer, and an output layer, as shown in Figure 4. Each neuron in the convolutional kernel of a convolutional layer is locally connected to its input. The introduction of a pooling layer extracts the local maximum or average features of a layer, effectively reducing network parameters and exploiting local features, enabling the CNN to converge quickly and achieve excellent performance.

[0084] Deep learning utilizes deep neural networks with multiple hidden layers, significantly improving the network's ability to learn features and fitting complex, nonlinear mappings from input to output. Consequently, it has found widespread application in speech and image processing. In addition to deep neural networks, deep learning also includes other commonly used basic structures such as convolutional neural networks (CNNs) and recurrent neural networks (RNNs) for different tasks.

[0085] The basic structure of a convolutional neural network includes an input layer, multiple convolutional layers, multiple pooling layers, a fully connected layer, and an output layer, as shown in Figure 4. Each neuron in the convolution kernel of the convolutional layer is locally connected to its input, and the introduction of the pooling layer extracts the local maximum or average features of a certain layer, effectively reducing the network parameters and mining local features, enabling the convolutional neural network to converge quickly and achieve excellent performance.

[0086] RNNs are neural networks that model sequential data and have achieved remarkable success in natural language processing applications such as machine translation and speech recognition. Specifically, network devices memorize information from past moments and use it in the calculation of current outputs. This means that nodes in hidden layers are no longer disconnected but connected, and the input to a hidden layer includes not only the input layer but also the output of the previous hidden layer. Common RNN structures include long short-term memory (LSTM) and gated recurrent unit (GRU). Figure 5 shows a basic LSTM cell structure, which can include a tanh activation function. Unlike RNNs, which only consider the most recent state, the LSTM cell state determines which states should be retained and which should be forgotten, addressing the long-term memory limitations of traditional RNNs.

[0087] A neural network (NN) model can be trained and obtained through the process of data set construction, training, verification and testing. This case assumes that the NN model has been trained in advance through offline training or online training. It should be noted that offline training and online training are not mutually exclusive. First, the NW can obtain a static training result through offline training of the data set, which can be referred to as offline training here. During the use of the NN by the NW or UE, as the UE further measures and / or reports, the NN model can continue to collect more data and perform real-time online training to optimize the parameters of the NN model to achieve better inference and prediction results.

[0088] To facilitate a better understanding of the embodiments of the present application, the NR beam management related to the present application is explained.

[0089] NR systems introduce millimeter-wave frequency band communications and corresponding beam management mechanisms, including both uplink and downlink beam management. Downlink beam management includes downlink beam sweeping, UE beam measurement and reporting, and network (NW) downlink beam indication.

[0090] The downlink beam scanning process may include three processes, namely P1, P2 and P3 processes. The P1 process refers to the network device scanning different transmit beams and the UE scanning different receive beams; the P2 process refers to the network device scanning different transmit beams and the UE using the same receive beam; the P3 process refers to the network device using the same transmit beam and the UE scanning different receive beams. Generally, the network device completes the above beam scanning process by sending a downlink reference signal. Optionally, the downlink reference signal may include but is not limited to a synchronization signal block (SSB) and / or a channel state information reference signal (CSI-RS).

[0091] FIG6 is a schematic diagram of the P1 process (or called the downlink full scan process), FIG7 is a schematic diagram of the P2 process, and FIG8 is a schematic diagram of the P3 process.

[0092] As shown in FIG6 , in the P1 process, the network device traverses all transmit beams to send downlink reference signals, and the UE side traverses all receive beams to perform measurements and determine corresponding measurement results.

[0093] As shown in Figure 7, in the P2 process, the network device traverses all transmit beams to send downlink reference signals, and the UE side uses a specific receive beam to perform measurements to determine the corresponding measurement results.

[0094] As shown in Figure 8, in the P3 process, the network device can use a specific transmit beam to send a downlink reference signal, and the UE side traverses all receive beams to perform measurements and determine the corresponding measurement results.

[0095] The beam reporting mechanism in NR is that the UE measures multiple transmit beams (P2 process) or transmit-receive beam pairs (P1 process), selects the K transmit beams with the highest Layer 1 Reference Signal Receiving Power (L1-RSRP) and their performance, and reports them to the NW as Channel State Information (CSI).

[0096] After decoding the beam information reported by the UE, the NW considers the downlink transmission channel and signal and uses Media Access Control (MAC) and / or Downlink Control Information (DCI) signaling to carry the Transmission Configuration Indicator (TCI) status (including the Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS) resource index as a reference for the UE) to indicate the beam information to the UE. The UE uses the receive beam corresponding to the transmit beam of the indicated SSB or CSI-RS for downlink reception.

[0097] Correspondingly, NR also defines three uplink beam scanning processes, namely U1, U2, and U3. U1 process means that the UE scans different transmit beams and the network works on different receive beams; U2 process means that the UE uses the same transmit beam and the network works on different receive beams; U3 process means that the UE scans different transmit beams and the network works on the same receive beam.

[0098] During uplink beam scanning, the NW measures the beams received from the UE, so no UE beam reporting is required. The NW selects the appropriate uplink beam from the measured beams and then assigns it to the UE for uplink transmission. Simultaneously, the NW prepares the corresponding receive beam.

[0099] To facilitate a better understanding of the embodiments of the present application, the AI / ML-based beam management related to the present application is explained.

[0100] AI / ML-based beam management can provide downlink beam prediction in the spatial domain and beam prediction in the time domain (BM-Case2).

[0101] Spatial-domain beam prediction (also known as Beam Management Case 1 (BM-Case 1)): The downlink beams in Dataset A (Set A) are predicted in the spatial domain by measuring the beams in Dataset B (Set B). Set B is either a subset of Set A or different sets of beams. Set B can be considered a subset of the beams (pairs); Set A can be considered the full set of beams (pairs).

[0102] Figure 9 schematically shows the input and output relationship of the beam prediction model. It can be considered that the model solves a multi-classification problem, that is, the relationship between the L1-RSRP input of a partial subset (i.e., Set B) and the L1-RSRP of the optimal K beams, where the partial beam measurement set (i.e., Set B, which is part of the L1-RSRP measured by the full set Set A) is used as the input of the model. The output is the optimal K beam indices selected from the full set Set A, that is, the K beams with the highest L1-RSRP. The labels used by the model are the K optimal (i.e., highest L1-RSRP) beam indices measured in the full set Set A. Specifically, as shown in Figure 9, the measurement data set B (Set B) includes the L1-RSRP corresponding to T beam indices, the prediction data set A (Set A) includes S beam indices, and the AI / ML model 1 predicts the optimal K beam indices (beam index #2 in Figure 9). It should be noted that the beam in Figure 9 can also be replaced by a beam pair. The specific description is similar to the beam and will not be repeated here.

[0103] Figure 10 schematically shows the optimal beam quality prediction model, which can be understood as a linear regression problem. The input and output relationship of the model is the relationship from the input L1-RSRP of a partial subset (i.e., Set B) to the L1-RSRP of the optimal K beams. The input part is the same as the beam prediction model in Figure 9, but the difference is that the output of this model is K (K>=1) optimal L1-RSRPs. The label is the optimal K L1-RSRPs measured in the full set (i.e., Set A), and the corresponding K beam indices. Specifically, as shown in Figure 10, the measurement data set B (Set B) includes L1-RSRPs corresponding to T beam indices, the prediction data set A (Set A) includes L1-RSRPs corresponding to S beam indices, and the AI / ML model 2 predicts K (K>=1) optimal L1-RSRPs. It should be noted that the beam in Figure 10 can also be replaced by a beam pair. The specific description is similar to the beam and will not be repeated here.

[0104] Time-domain beam prediction (also known as Beam Management Case 2 (BM-Case 2)): The time-domain prediction of the downlink beams in Dataset A (Set A) is performed using the beams in Historical Measurement Dataset B (Set B). Set B is either a subset of Set A, the same as Set A, or a subset of Set A. Set B can be considered a partial subset of the beams (pairs); Set A can be considered the full set of beams (pairs).

[0105] For the prediction of time-domain beam pairs and their performance, the LSTM model used is shown in Figure 11. This LSTM model can be understood as extending M instances as input in time series, equivalent to a cascade of M LSTM units. Each LSTM unit receives the L1-RSRP of the beam pair for instance m (Set Bm) in dataset B, where 1 ≤ m ≤ M.

[0106] It should be noted that the beam (pair) index of Set Bm can be implicitly input through the fixed ordering of L1-RSRP. After completing the performance input of M instances, the LSTM model can predict the optimal beam (pair) for the next F instances, the performance of the optimal beam (pair) (i.e., link quality information), and the dwelling time of the optimal beam (pair).

[0107] In order to facilitate a better understanding of the embodiments of the present application, the problems solved by the present application are explained.

[0108] For the NR beam scanning process, the scanning of a large number of spatial beams (pairs) in the downlink will bring a lot of reference signal overhead and measurement delay. For example, assuming that NW deploys 64 different downlink transmission directions in FR2 (carried by up to 64 SSBs), the UE uses multiple antenna panels (including only one receiving beam panel) to perform receiving beam scanning simultaneously, and each antenna panel has 4 receiving beams. The UE needs to measure at least 64*4=256 beam pairs, which corresponds to a downlink resource overhead of 256 resources and a scanning time of about 80 milliseconds (one SSB cycle per 20ms, a total of 4 cycles). Therefore, use cases for beam (pair) prediction in the spatial domain and time domain are defined in the NR evolution. Similarly, the uplink beam scanning process also faces the same overhead and delay problems.

[0109] Specifically, in the NR system, downlink beam management may include: downlink beam scanning, optimal beam reporting on the terminal side, downlink beam indication on the network side, and other processes, as shown in Figure 12. Uplink beam management may include: uplink beam scanning, uplink beam indication on the network side, and other processes, as shown in Figure 13. Specifically, for downlink beam management, the network device scans all transmit beam directions through the downlink reference signal, and the terminal device can use different receive beams for measurement, so that all beam pairs can be traversed. For uplink beam management, the terminal device scans all transmit beam directions through the uplink reference signal, and the network device can use different receive beams for measurement, so that all beam pairs can be traversed.

[0110] It can be seen that in uplink beam management and downlink beam management, it is necessary to traverse all combinations of transmit beams and receive beams to select the optimal beam, which will bring a lot of overhead and delay.

[0111] While the use cases defined in NR are all focused on downlink beam scanning to reduce overhead and latency, there is no optimization of the uplink beam scanning process. Therefore, this solution takes into account the beam symmetry between uplink and downlink channels, that is, there is a certain correspondence between the optimal downlink beam pair and the uplink beam pair. Machine learning techniques can extract this correspondence, allowing downlink measurements to predict the optimal uplink beam (pair), and vice versa. This can reduce the beam scanning overhead in one direction (uplink or downlink).

[0112] Based on the above problems, the present application proposes a beam (pair) prediction scheme based on an AI / ML model. The terminal device can support uplink spatial filter prediction based on downlink measurement results, and / or the terminal device can support downlink spatial filter prediction based on uplink measurement results, thereby reducing the overhead and latency of uplink spatial filter management and / or downlink spatial filter management.

[0113] It should be noted that the word "beam (pair)" means "beam" or "beam pair". Specifically, in the embodiment of this application, a beam may refer to a transmit beam or a receive beam, and a beam pair refers to a pair of transmit beam and receive beam. In the embodiment of this application, a spatial filter is used instead of the word "beam", which is more implementation-oriented. For AI / ML models, their output can be understood as inference or prediction. In this application, inference and prediction have the same meaning and can be interchanged.

[0114] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0115] FIG14 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG14 , the wireless communication method 200 may include at least part of the following contents:

[0116] S210, the terminal device sends first capability information to the network device; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on the downlink measurement result, and / or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on the uplink measurement result;

[0117] S220: The network device receives the first capability information.

[0118] In some embodiments, when the terminal device supports uplink spatial filter prediction based on downlink measurement results, the terminal device inputs the first measurement data set into the first network model and outputs the first prediction data set;

[0119] The first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, where K1 is a positive integer.

[0120] In some embodiments, when the terminal device supports downlink spatial filter prediction based on uplink measurement results, the network device inputs the second measurement data set into the second network model and outputs a second prediction data set;

[0121] Among them, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0122] In some embodiments of the present application, a spatial filter may also be referred to as a beam, a beam pair, a spatial relation, a spatial setting, a spatial domain filter, etc., or a spatial filter may also be referred to as a reference signal.

[0123] In some embodiments, the first network model is an AI / ML model. Optionally, the first network model may be an AI / ML model for beam prediction in the spatial domain, and a specific implementation may be shown in FIG9 or FIG10 , or a specific implementation may be shown in FIG11 .

[0124] In some embodiments, the second network model is an AI / ML model. Optionally, the second network model may be an AI / ML model for beam prediction in the spatial domain, and a specific implementation may be shown in FIG9 or FIG10 , or a specific implementation may be shown in FIG11 .

[0125] In some embodiments, a transmit spatial filter may also be referred to as a transmit beam (Tx beam) or a transmit-end spatial domain filter, and these terms are interchangeable. A receive spatial filter may also be referred to as a receive beam (Rx beam) or a receive-end spatial domain filter, and these terms are interchangeable. The combination of a transmit spatial filter and a receive spatial filter may also be referred to as a beam pair (i.e., a transmit beam (Tx beam) and a receive beam (Rx beam) pair), a spatial filter pair, or a spatial filter bank, and these terms are interchangeable.

[0126] In some embodiments, the identification information of the spatial filter may be an index or an identification of the spatial filter.

[0127] For example, the identification information of the transmit spatial filter may be an index or an identification of the transmit spatial filter.

[0128] For another example, the identification information of the receiving spatial filter may be an index or an identification of the receiving spatial filter.

[0129] For another example, the identification information of the combination of the transmit spatial filter and the receive spatial filter may be a combination index.

[0130] In some embodiments, the link quality information includes at least one of the following: Layer 1 Reference Signal Receiving Power (L1-RSRP), Layer 1 Reference Signal Received Quality (L1-RSRQ), Layer 1 Signal to Interference plus Noise Ratio (L1-SINR), Layer 1 Received Signal Strength Indication (L1-RSSI).

[0131] In an embodiment of the present application, for uplink spatial filter prediction based on downlink measurement results, the first network model is more suitable for deployment on the UE side. Of course, for uplink spatial filter prediction based on downlink measurement results, the first network model can also be deployed on the network side. In this case, the terminal device is required to report the downlink measurement results. The following description takes the deployment of the first network model on the UE side as an example, that is, the terminal device performs uplink spatial filter prediction based on the downlink measurement results.

[0132] In an embodiment of the present application, for downlink spatial filter prediction based on uplink measurement results, the second network model is more suitable for deployment on the network (NW) side. Of course, for downlink spatial filter prediction based on uplink measurement results, the second network model can also be deployed on the UE side. In this case, the network device is required to indicate the uplink measurement results to the terminal device. The following is an example of the second network model being deployed on the network (NW) side, that is, the network device performs downlink spatial filter prediction based on the uplink measurement results.

[0133] In an embodiment of the present application, a terminal device can implement uplink spatial filter prediction based on downlink measurement results based on a first network model, or a network device can implement downlink spatial filter prediction based on uplink measurement results based on a second network model, thereby reducing the overhead of beam (pair) prediction and improving the performance of the beam management system. Specifically, this embodiment of the present application can be implemented through uplink and downlink beam symmetry (beam correspondence).

[0134] For example, if the UE supports uplink and downlink beam symmetry (beam correspondence), the UE predicts the optimal K1 downlink receive beams through the first network model, and then reverses the K1 downlink receive beams to obtain the optimal K1 uplink transmit beams through the uplink and downlink beam symmetry.

[0135] For another example, if the NW supports uplink and downlink beam symmetry (beam correspondence), then the NW predicts the optimal K2 uplink receive beams through the second network model, and then reverses the K2 uplink receive beams to obtain the optimal K2 downlink transmit beams based on the uplink and downlink beam symmetry.

[0136] In an embodiment of the present application, downlink measurement-assisted uplink beam (pair) prediction, or uplink measurement-assisted downlink beam (pair) prediction, can be implemented. The "assisted" here means that downlink or uplink measurement quantities (such as measured reference signal resource indices and / or their L1-RSRP values) are used as input to the AI / ML model.

[0137] In an embodiment of the present application, when downlink measurement assists uplink beam (pair) prediction, the UE measures the downlink beam scanning reference signal as the input of the model, the model outputs the prediction of the optimal uplink beam (pair) index, and the UE reports the uplink beam (pair) prediction result to the NW, and finally the NW completes the uplink beam indication. When uplink measurement assists downlink beam (pair) prediction, the UE sends the uplink beam scanning reference signal, the NW performs measurement and uses it as the input of the model, the model outputs the prediction of the optimal downlink beam (pair) index, and finally the NW completes the downlink beam indication.

[0138] It should be noted that an uplink beam (pair) can be an uplink transmit beam, or an uplink transmit beam and an uplink receive beam. Similarly, a downlink beam (pair) can be a downlink transmit beam, or a downlink transmit beam and a downlink receive beam.

[0139] In some embodiments, the terminal device supports uplink spatial filter prediction based on downlink measurement results.

[0140] That is, in this embodiment, the first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters, and identification information of the predicted K1 uplink receive spatial filters.

[0141] Specifically, for example, the first measurement data set includes link quality information measured based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters, and identification information of the K1 uplink receive spatial filters.

[0142] Specifically, for example, the first measurement data set includes link quality information obtained based on the downlink reference signal measurement set and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters and identification information of the K1 uplink receive spatial filters.

[0143] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in a downlink reference signal resource set. Optionally, the downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

[0144] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set include CSI-RS resources and / or SSB resources.

[0145] For example, assuming that the downlink reference signal measurement set is Set B, in order to implement uplink transmit beam prediction based on downlink measurement, or to implement uplink beam pair (i.e., uplink transmit beam and uplink receive beam) prediction based on downlink measurement, the NW sends a downlink reference signal based on Set B, and the UE needs to measure the downlink reference signal resources in Set B, i.e., CSI-RS resources and / or SSB resources. It should be noted that Set B can be composed of all downlink reference signal resources (i.e., full beam coverage) or a part of the downlink reference signal resources (i.e., achieving the goal of reducing overhead in the spatial domain). In addition, on the UE side, according to the configuration of the reference signal resources in Set B, the UE can use one or more receive beams for measurement.

[0146] Specifically, the schematic diagram of downlink beam (pair) measurement and uplink beam (pair) prediction can be shown in Figure 15, where the UE measures the downlink reference signal sent by the transmission reception point (TRP) based on the downlink reference signal measurement set (Set B), and the UE predicts K1 uplink transmit beams and K1 uplink receive beams based on the first reference signal prediction set (Set A).

[0147] In some embodiments, when the first measurement data set only includes link quality information measured based on the downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order;

[0148] The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

[0149] For example, there are two main input methods for the first network model. One input method is to input only the link quality of the downlink reference signal in Set B, such as L1-RSRP, in a fixed order (i.e., the first order). Another input method includes the downlink reference signal resource index in Set B and the link quality, such as L1-RSRP. The advantage of the second model is that the selection of Set B is more flexible.

[0150] Specifically, in the first model input method, the UE uses the L1-RSRP (or other performance indicators, such as L1-SINR, L1-RSSI, or L1-RSRQ) of the downlink reference signal measured by Set B in a fixed order (i.e., the first order) as the model input, as shown in Figure 16. The output is the index of the optimal K1 uplink beams (pairs) predicted by the model, with K1 = 1 used as an example in Figure 16.

[0151] Specifically, in the second model input method, the UE uses the L1-RSRP of the downlink reference signal measured by Set B and the downlink reference signal resource index in Set B as the model input, as shown in Figure 17. This differs from Figure 16, in that M downlink reference signal resource indices and the corresponding M link quality indicators, such as L1-RSRP, are used as model input. The advantage is that the UE can measure more flexibly without having to use the same input every time. Similarly, the model output is the predicted optimal K1 uplink beam (pair) indexes, using K1 = 1 as an example in Figure 17.

[0152] It should be noted that, because in FIG16 and FIG17 , the model outputs the optimal K1 uplink beams (pairs), it is not necessary to predict the RSRP received by the corresponding uplink at the NW.

[0153] In some embodiments, as Example 1, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the reference signal resources predicted by the first network model from the first reference signal prediction set.

[0154] Specifically, the reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources. Specifically, for example, the first reference signal prediction set may be Set A.

[0155] Optionally, in Example 1, the identification information of the K1 uplink transmit spatial filters may be represented by a reference signal resource index predicted by the first network model from the first reference signal prediction set.

[0156] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if spatial relationship information is configured or activated for the uplink reference signal resources in the first reference signal prediction set, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively receive spatial filters for the corresponding uplink reference signal resources.

[0157] For example, the predicted uplink transmit beam index corresponds to an uplink reference signal resource (e.g., an SRS resource). That is, the reference signal resources in the first reference signal prediction set include at least an uplink reference signal resource (e.g., an SRS resource). If spatial relationship information is configured and / or activated for the SRS resource, the UE uses the spatial relationship information as the uplink transmit beam. Correspondingly, the NW uses the receive beam that receives the SRS resource for reception.

[0158] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are determined based on a first uplink scanning method (such as a U3 process); wherein, in the first uplink scanning method, an uplink reference signal is sent using the uplink transmit spatial filter corresponding to the predicted uplink reference signal resource, different receive spatial filters are used to receive the uplink reference signal, and the optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

[0159] For example, the predicted uplink transmit beam index corresponds to the uplink reference signal resource (such as SRS resource), that is, the reference signal resource in the first reference signal prediction set includes at least the uplink reference signal resource (such as SRS resource). If the SRS resource is not configured and / or the spatial relationship information is activated, for example, the SRS resource in the SRS resource set for uplink beam scanning, the UE only knows the transmission direction of the SRS resource, and the NW does not know in advance how to receive the SRS resource. Then the UE needs to perform uplink beam scanning. For example, in the U3 process, the UE fixes the optimal uplink beam direction, and the NW uses different receiving beams to receive, so as to find the optimal receiving beam corresponding to the SRS resource.

[0160] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources (such as CSI-RS resources) in the first reference signal prediction set are configured or activated with a TCI state, or if the downlink reference signal resources (such as SSB resources) in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resource predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively the transmit spatial filters of the corresponding downlink reference signal resources.

[0161] For example, the predicted uplink transmit beam index corresponds to the downlink reference signal resource (such as CSI-RS resource or SSB resource), that is, the reference signal resource in the first reference signal prediction set includes at least downlink reference signal resources (such as CSI-RS resource or SSB resource). If the CSI-RS resource (TCI state is configured and / or activated) or SSB resource (the UE has measured it in advance), then the UE can use the corresponding receive beam as the uplink transmit beam; the NW uses the transmit beam of the CSI-RS resource or SSB resource as the uplink receive beam.

[0162] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the first downlink scanning mode (such as the P3 process); wherein, in the first downlink scanning mode, the downlink reference signal is sent using the downlink transmit spatial filter corresponding to the predicted downlink reference signal resource, the downlink reference signal is received using different receive spatial filters, and the optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively the downlink transmit spatial filters corresponding to the predicted downlink reference signal resources.

[0163] For example, the predicted uplink transmit beam index corresponds to the downlink reference signal resource (such as CSI-RS resource or SSB resource), that is, the reference signal resource in the first reference signal prediction set includes at least downlink reference signal resources (such as CSI-RS resource or SSB resource). If the CSI-RS resource (not configured in advance and / or the TCI state is not activated) or the SSB resource (the UE has not measured in advance), then a downlink beam scanning process is required, such as the P3 process. The NW uses a fixed transmit beam, and the UE uses different receive beams to find the optimal receive beam of the fixed transmit beam. The downlink receive beam is then used as the optimal uplink transmit beam.

[0164] In some embodiments, as Example 2, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set. That is, the reference signal resources in the first reference signal prediction set include uplink reference signal resources and downlink reference signal resources.

[0165] Optionally, in Example 2, the identification information of the K1 uplink transmit spatial filters can be represented by the uplink reference signal resource index predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters can be represented by the downlink reference signal resource index predicted by the first network model from the first reference signal prediction set.

[0166] Optionally, in Example 2, the identification information of the K1 uplink transmit spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or,

[0167] The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0168] For example, the model outputs the uplink transmit beam and the uplink receive beam, that is, the index of the uplink beam pair. An abstract beam pair index can be used to represent the predicted beam pair. It is also possible to consider using the resource index in NR to represent it. For example, the transmit beam in the beam pair can correspond to the SRS resource (configured with spatial relationship information), and the receive beam can correspond to it with CSI-RS (configured with TCI state) or SSB resource. This means that the UE uses a beam of a predicted optimal SRS resource as the uplink transmit beam, and the NW uses the reverse implementation of the corresponding CSI-RS or SSB transmit beam as the uplink receive beam.

[0169] In some embodiments, the reference signal resources in the first reference signal prediction set are part or all of the reference signal resources in a preconfigured reference signal resource set. Optionally, the downlink reference signal resources in the first reference signal prediction set include CSI-RS resources and / or block SSB resources; and / or the uplink reference signal resources in the first reference signal prediction set include SRS resources.

[0170] In some embodiments, the first communications device sends first prediction information, wherein the first prediction information includes part or all of the reference signal resource indexes predicted by the first network model from the first reference signal prediction set.

[0171] In some embodiments, the first prediction information may be carried by at least one of the following:

[0172] Radio Resource Control (RRC) signaling, Uplink Control Information (UCI), Media Access Control Control Element (MAC CE) signaling.

[0173] In some embodiments, in the above example 1, the predicted uplink transmit beam index can correspond to an uplink reference signal resource (such as an SRS resource) and / or a downlink reference signal resource (such as a CSI-RS resource and / or an SSB resource). Therefore, when the first prediction data set includes identification information of the predicted K1 uplink transmit spatial filters, the first prediction information may include SRS resources in addition to CSI-RS resources and / or SSB resources.

[0174] For example, the first prediction information can be carried by the CSI report, and the first prediction information includes a CSI-RS resource indication (CSI-RS Resource Indicator, CRI) (i.e., CSI-RS resource index) or an SSB resource indication (SSBRI) (i.e., SSB resource index). Of course, the L1-RSRP corresponding to the CRI or SSBRI can also be reported at the same time, but the CRI or SSBRI expresses the receive beam corresponding to the uplink transmit beam of the UE, as shown in Table 1. The reporting format may include L1-RSRP and differential L1-RSRP, but it is still the corresponding downlink link quality, or it may not include it (indicated by []).

[0175] Table 1 Downlink reference signal resources reported as uplink receive beams

[0176] It should be noted that in the above Table 1, the L1-RSRP corresponding to CRI or SSBRI#1 is L1-RSRP#1, the L1-RSRP corresponding to CRI or SSBRI#2 is L1-RSRP#2, the L1-RSRP corresponding to CRI or SSBRI#3 is L1-RSRP#3, and the L1-RSRP corresponding to CRI or SSBRI#4 is L1-RSRP#4. Differential L1-RSRP#2 can be the difference between L1-RSRP#2 and L1-RSRP#1, Differential L1-RSRP#3 can be the difference between L1-RSRP#3 and L1-RSRP#1, and Differential L1-RSRP#4 can be the difference between L1-RSRP#4 and L1-RSRP#1.

[0177] For example, the first prediction information can be carried by a CSI report and includes an SRS resource index, which represents the optimal uplink transmit beam predicted by the model, as shown in Table 2. If the NW knows how to receive the SRS resource, then the NW receives it according to the spatial relationship information of the SRS resource (i.e., the uplink beam information); otherwise, the NW can only scan the receive beam for the SRS resource to find a suitable uplink receive beam.

[0178] Table 2 Uplink reference signal resources reported as uplink transmit beams

[0179] In some embodiments, in the above-mentioned Example 2, the predicted uplink transmit beam index may correspond to an uplink reference signal resource (such as an SRS resource), and the predicted uplink receive beam index may correspond to a downlink reference signal resource (such as a CSI-RS resource and / or an SSB resource). Therefore, when the first prediction data set includes the identification information of the predicted K1 uplink transmit spatial filters and the identification information of the K1 uplink receive spatial filters, the content included in the first prediction information may include CSI-RS resources and / or SSB resources and SRS resources.

[0180] For example, when the first predicted data set includes the identification information of K1 predicted uplink transmit spatial filters and the identification information of K1 uplink receive spatial filters, the transmit beam (associated with the SRS resource) and the receive beam (associated with the CSI-RS resource or SSB resource), referring to Table 3, the first CRI or SSBRI corresponds to the first SRS resource index, the second CRI or SSBRI corresponds to the second SRS resource index, and so on.

[0181] Table 3 Uplink reference signal resources reported as uplink transmit beams

[0182] For example, when the first predicted data set includes the identification information of the predicted K1 uplink transmit spatial filters and the identification information of the K1 uplink receive spatial filters, only the receive beam (associated with the CSI-RS resource or the SSB resource) is reported, and the transmit beam is implemented as the UE (no need to report). The specific reporting format can be referred to Table 1 above and will not be repeated here.

[0183] In some embodiments, after the first communication device sends the first prediction information, the first communication device receives the first indication information;

[0184] The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

[0185] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index.

[0186] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0187] In some embodiments, the first indication information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0188] For example, after the UE reports the uplink transmit beam or uplink beam pair, the NW can indicate the transmit beam based on the UE's report. In NR, indications based on spatial relationship information can be used, or indications of a unified TCI state (uplink TCI state or joint TCI state) can be used. The core content of the indication is the UE's transmit beam, which includes a downlink reference signal resource (such as a CSI-RS resource or SSB resource reported by the UE) on a specific bandwidth part (Band Width Part, BWP) under a specific carrier component (Component carrier, CC), or an uplink reference signal resource (such as an SRS resource reported by the UE).

[0189] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device sends first capability information; wherein the first capability information is used to indicate that the first communication device supports uplink spatial filter prediction based on downlink measurement results.

[0190] Specifically, before the NW configures the measurement resources required by the model for the UE, the UE needs to inform the NW through capability reporting whether it supports prediction of uplink beams (pairs) based on downlink measurements.

[0191] In some embodiments, the first capability information further includes at least one of the following:

[0192] The maximum number of downlink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0193] The maximum number of supported configured downlink reference signal measurement sets;

[0194] The maximum number of downlink reference signal measurement sets supported for simultaneous measurement;

[0195] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0196] The maximum number of downlink reference signal measurement sets supported on a CC or a BWP;

[0197] The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set;

[0198] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0199] The maximum value of K1;

[0200] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

[0201] For example, before the NW configures the measurement resources required by the model for the UE, the UE needs to report whether it supports the prediction of uplink beams (pairs) based on downlink measurements through its capabilities. If it supports the prediction of uplink beams (pairs) based on downlink measurements, the capabilities reported by the UE include but are not limited to at least one of the following:

[0202] The maximum number of beam (pair) measurement sets supported across all CCs / BWPs, including the maximum number of measurement sets that can be configured and the maximum number of measurement sets that a UE can measure simultaneously.

[0203] The maximum number of beam (pair) prediction sets supported on all CCs / BWPs;

[0204] The maximum number of beam (pair) measurement sets supported on a CC / BWP is Nmax;

[0205] In each measurement set Set Bn (1<=n<=N), the maximum number of downlink SSB resources and / or CSI-RS resources that can be measured;

[0206] The maximum number of beam (pair) prediction sets supported on a CC / BWP, i.e., Pmax;

[0207] In each prediction set Set Ap (1 <= p <= P), the maximum number of beams (pairs) that can be predicted;

[0208] The number P of prediction sets on a CC / BWP may be the same as the number N of measurement sets (P=N). In this case, the prediction sets and measurement sets of beams (pairs) may be mapped one-to-one.

[0209] In some embodiments, the first capability information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and UCI.

[0210] In some embodiments, if the UE supports uplink beam (pair) prediction based on downlink measurement, and the model used for prediction is a cell-specific model, the NW will pass the model adapted to the actual deployment environment and beam (pair) configuration to the UE. The signaling transmitted by the model can be signaling within the 3GPP framework, such as the NW describing the structure of one or more models and the initial parameters of each node based on the open format of RRC signaling. Next, the NW can use RRC or MAC CE or DCI to indicate a special model identifier (model ID) to the UE (an ID defined in the model lifecycle management to identify different models). Another implementation method is that the UE starts a model prepared in advance and optionally informs the NW of the description information of the model, such as through an open format or a more concise model ID. In the process of using model ID as a model communication, one of the most important assumptions is that the NW and the UE have a clear consensus and understanding of the model details expressed by the model ID.

[0211] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device receives first information; wherein the first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set among multiple pre-configured downlink reference signal measurement sets, the first reference signal prediction set among multiple pre-configured reference signal prediction sets.

[0212] For example, the NW configures and / or activates the measurement set Set B required for model input for the UE. The NW uses RRC signaling to configure one or more Set Bn (1 <= n <= N) for the UE. Set Bn, as a beam (pair) measurement set, can include CSI-RS resources and / or SSB resources. If the NW configures multiple Set Bn (1 <= n <= N) for the UE, then the NW also needs to use MAC CE signaling to activate one of the multiple configured Set Bs based on the actual deployment and antenna configuration. Otherwise, the UE only uses the configured Set B.

[0213] For example, the NW configures and / or activates the uplink beam (pair) prediction set Set A output by the model for the UE. The NW uses RRC signaling to configure one or more uplink beam (pair) prediction sets Set Ap (1<=p<=P) for the UE. Set Ap, as a beam (pair) prediction set, can include CSI-RS resources, SSB resources, and / or SRS resources. If the NW configures multiple sets of Set Ap (1<=p<=P), then the NW also needs to use MAC CE signaling to activate one set of Set A in the multiple configurations based on the actual deployment and antenna configuration. Otherwise, only the configured set of Set A is used.

[0214] In some embodiments, the first information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0215] In some embodiments, a flowchart of predicting an uplink beam based on downlink measurement results may be shown in FIG18 .

[0216] In some embodiments, the terminal device supports downlink spatial filter prediction based on uplink measurement results.

[0217] That is, in this embodiment, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of the K2 downlink receive spatial filters.

[0218] Specifically, for example, the second measurement data set includes link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters, and identification information of the K2 downlink receive spatial filters.

[0219] Specifically, for example, the second measurement data set includes link quality information obtained based on the uplink reference signal measurement set and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of the K2 downlink receive spatial filters.

[0220] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in an uplink reference signal resource set. Optionally, the uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

[0221] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set include SRS resources.

[0222] For example, assuming that the uplink reference signal measurement set is Set D, in order to implement downlink transmit beam prediction based on uplink measurement, or to implement downlink beam pair (i.e., downlink transmit beam and downlink receive beam) prediction based on uplink measurement, the UE sends an uplink reference signal based on Set D, and the NW needs to measure the uplink reference signal resources in Set D, i.e., SRS resources. It should be noted that Set D can be composed of all uplink reference signal resources (i.e., full beam coverage) or a portion of the uplink reference signal resources (i.e., achieving the goal of reducing overhead in the spatial domain). In addition, on the NW side, based on the configuration of the reference signal resources in Set D, the NW can use one or more receive beams for measurement.

[0223] Specifically, the schematic diagram of uplink beam (pair) measurement and downlink beam (pair) prediction can be shown in Figure 19, where TRP (NW) measures the uplink reference signal sent by the UE based on the uplink reference signal measurement set (Set D), and TRP (NW) predicts K2 downlink transmit beams and K2 downlink receive beams based on the second reference signal prediction set (Set C).

[0224] In some embodiments, when the second measurement data set only includes link quality information measured based on the uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the second network model in a second order;

[0225] The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

[0226] For example, there are two main input methods for the second network model. One model input method is to input only the link quality of the uplink reference signal (e.g., SRS) in Set D in a fixed order (i.e., the second order), such as L1-RSRP. Another model input method includes the index of the uplink reference signal resource (e.g., SRS resource) in Set D and the link quality, such as L1-RSRP. The advantage of the second model is that the selection of Set D is more flexible.

[0227] Specifically, in the first model input method, the NW uses the L1-RSRP (or other performance indicators, such as L1-SINR, L1-RSSI, or L1-RSRQ) of the uplink reference signal measured by Set D in a fixed order (i.e., the second order) as the model input, as shown in Figure 20. The output is the index of the optimal K2 downlink beams (pairs) predicted by the model, with K2 = 1 used as an example in Figure 20.

[0228] Specifically, in the second model input method, the NW uses the L1-RSRP of the uplink reference signal measured in Set D and the uplink reference signal resource index in Set D as the model input, as shown in Figure 21. This differs from Figure 20, which uses M uplink reference signal resource indices and the corresponding M link quality indicators, such as L1-RSRP, as the model input. The advantage is that the NW can measure more flexibly without having to use the same input every time. Similarly, the model output is the predicted optimal K2 downlink beam (pair) index, using K2 = 1 as an example in Figure 21.

[0229] It should be noted that, because in Figures 20 and 21, the model outputs the optimal K2 downlink beams (pairs), it is not necessary to predict the corresponding downlink RSRP received at the UE.

[0230] In some embodiments, as Example 3, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the reference signal resources predicted by the second network model from the second reference signal prediction set.

[0231] Specifically, the reference signal resources in the second reference signal prediction set include downlink reference signal resources. Optionally, the downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources. Specifically, for example, the second reference signal prediction set may be Set C.

[0232] Optionally, in Example 3, if the downlink reference signal resources (such as CSI-RS resources) in the second reference signal prediction set are configured or activated with the TCI state, or if the downlink reference signal resources (such as SSB resources) in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0233] For example, the downlink optimal transmit beam output by the model corresponds to the downlink reference signal. If there is a CSI-RS resource (TCI state is configured and / or activated) or an SSB resource (the UE has measured in advance and knows to use the corresponding receive beam), the UE uses the corresponding receive beam for reception.

[0234] Optionally, in Example 3, if the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode; wherein, in the second downlink scanning mode (such as the P2 process), the downlink reference signal is sent using the downlink transmit spatial filter corresponding to the predicted downlink reference signal resource, different receive spatial filters are used to receive the downlink reference signal, and the optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0235] For example, the downlink optimal transmit beam output by the model corresponds to the downlink reference signal. If the CSI-RS resource (TCI state is not configured and / or activated) or the SSB resource (the UE has not measured in advance and therefore does not know to use the corresponding receive beam), then the NW needs to perform a downlink beam scanning process, namely the P2 process. The NW uses a fixed predicted transmit beam direction to send, and the UE uses different receive beams to receive, so as to find the receive beam corresponding to the optimal downlink transmit beam.

[0236] In some embodiments, as Example 4, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the second network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the second network model from the second reference signal prediction set. Optionally, the uplink reference signal resources in the second reference signal prediction set include SRS resources.

[0237] Optionally, in Example 4, the identification information of the K2 downlink receive spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the second network model from the second reference signal prediction set; and / or, the identification information of the K2 downlink transmit spatial filters is respectively the identification information of the downlink transmit spatial filters corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0238] For example, the model can output only the transmit beam portion of the optimal downlink beam pair, namely the CSI-RS and / or SSB resource index. However, this requires that the UE has previously measured the predicted SSB resources and the TCI status of the configured and / or activated CSI-RS, meaning that the UE knows which receive beam to use for reception.

[0239] For example, the model can also output downlink transmit beams (corresponding to CSI-RS and / or SSB) and downlink receive beams (corresponding to SRS). For the receive beam portion, the UE needs to reverse the SRS transmit beam to create a downlink receive beam.

[0240] In some embodiments, the network device sends second indication information to the terminal device;

[0241] In which, the second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters, or the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of the K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters.

[0242] In some embodiments, when the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or,

[0243] When the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0244] Specifically, the NW indicates the downlink transmit beam and performs beam indication based on the traditional TCI state or the unified TCI state.

[0245] Specifically, NW indicates the downlink beam pair. If the model only outputs the CSI-RS and / or SSB index, the beam indication of the TCI state can be used. As mentioned above, the premise is that the UE needs to have the corresponding receive beam in advance. If the model outputs a combination of the CSI-RS and / or SSB index (indicating the transmit beam) and the SRS index (indicating the receive beam), it is clear that the traditional beam indication based on the TCI state is not sufficient. For the receive beam in the beam pair, the SRS resource is used to represent it.

[0246] Specifically, the SRS resource index may be carried in the second unified TCI state in the MAC CE and / or DCI indicated by the NW. The UE uses the transmit beam of the SRS resource contained in the second unified TCI state as the downlink receive beam.

[0247] In some embodiments, the second indication information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0248] In some embodiments, before the network device performs spatial filter prediction based on the second network model, the network device receives second capability information sent by the terminal device;

[0249] The second capability information includes at least one of the following:

[0250] The maximum number of uplink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0251] The maximum number of supported configured uplink reference signal measurement sets;

[0252] The maximum number of uplink reference signal measurement sets supported for simultaneous transmission;

[0253] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0254] The maximum number of uplink reference signal measurement sets supported on a CC or a BWP;

[0255] The maximum number of uplink reference signal resources supported in an uplink reference signal measurement set;

[0256] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0257] The maximum value of K2;

[0258] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

[0259] Specifically, before the NW configures the measurement resources required for the model for the UE, the UE needs to report its relevant capabilities to the NW. It should be noted that the protocol can support the UE's ability to report uplink beam scanning based on SRS, so the UE does not need to report whether it supports downlink beam (pair) prediction based on uplink measurement. The capabilities reported by the UE include but are not limited to at least one of the following:

[0260] The maximum number of beam (pair) measurement sets supported for transmission on all CCs / BWPs, including the maximum number of measurement sets that can be configured and the maximum number of measurement sets that a UE can send simultaneously.

[0261] The maximum number of beam (pair) prediction sets supported on all CCs / BWPs;

[0262] The maximum number of beam (pair) measurement sets that can be sent on a CC / BWP is Smax;

[0263] In each measurement set Set Ds (1 <= s <= S), the maximum number of uplink SRS resources that can be sent;

[0264] The maximum number of beam (pair) prediction sets supported on a CC / BWP, i.e., Tmax;

[0265] In each prediction set Set Ct (1 <= t <= T), the maximum number of beams (pairs) that can be predicted;

[0266] The number T of prediction sets on a CC / BWP may be the same as the number S of measurement sets (S=T). In this case, the prediction sets and measurement sets of beams (pairs) may be mapped one-to-one.

[0267] In some embodiments, the second capability information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and UCI.

[0268] In this embodiment, because the model is deployed on the NW side, there is no need to transfer the model from the NW to the UE.

[0269] In some embodiments, before the network device performs spatial filter prediction based on the second network model, the network device sends second information to the terminal device; wherein,

[0270] The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0271] For example, the NW configures and / or activates an SRS-based measurement set, Set D, for the UE. The NW uses RRC signaling to configure one or more Set Ds (1 <= s <= S) for the UE. Set Ds, as an uplink beam (pair) measurement set, contains SRS resources. If the NW configures multiple Set Ds (1 <= s <= S) for the UE, the NW also needs to use MAC CE signaling to activate one of the multiple configured Set Ds, based on the actual deployment and antenna configuration. Otherwise, the UE uses only the configured Set D.

[0272] For example, the NW configures and / or activates the downlink beam (pair) prediction set Set C output by the model for the UE (the purpose of configuring the prediction set for the UE here is not to allow the UE to predict the downlink beam (pair), but to let the UE know the range of the NW's downlink beam (pair) indication). The NW uses RRC signaling to configure one or more uplink beam (pair) prediction sets Set Ct (1<=t<=T) for the UE. Set Ct as a downlink beam (pair) prediction set can include CSI-RS resources, SSB resources, and / or SRS resources. If the NW configures multiple sets of Set Ct (1<=t<=T), then the NW also needs to use MAC CE signaling to activate one set of Set C in the multiple configurations based on the actual deployment and antenna configuration. Otherwise, only the configured set of Set C is used.

[0273] In some embodiments, the second information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0274] In some embodiments, a flowchart of predicting a downlink beam based on uplink measurement results may be as shown in FIG. 22 .

[0275] Therefore, in an embodiment of the present application, a terminal device can support uplink spatial filter prediction based on downlink measurement results, and the terminal device can implement uplink spatial filter prediction based on downlink measurement results based on a first network model; and / or, the terminal device can support downlink spatial filter prediction based on uplink measurement results, and the network device can implement downlink spatial filter prediction based on uplink measurement results based on a second network model, thereby reducing the overhead and latency of uplink spatial filter management and / or downlink spatial filter management. The embodiment of the present application can be specifically implemented through uplink and downlink beam symmetry (beam correspondence).

[0276] FIG23 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG23 , the wireless communication method 300 may include at least part of the following contents:

[0277] S310, a first communication device inputs a first measurement data set into a first network model and outputs a first prediction data set;

[0278] The first measurement data set includes at least one of the following: link quality information obtained by measurement based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained by measurement based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters, and identification information of K1 uplink receive spatial filters, where K1 is a positive integer; or

[0279] The first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0280] In some embodiments of the present application, a spatial filter may also be referred to as a beam, a beam pair, a spatial relation, a spatial setting, a spatial domain filter, etc., or a spatial filter may also be referred to as a reference signal.

[0281] In some embodiments, the first network model is an AI / ML model. Optionally, the first network model may be an AI / ML model for beam prediction in the spatial domain, and a specific implementation may be shown in FIG9 or FIG10 , or a specific implementation may be shown in FIG11 .

[0282] In some embodiments, a transmit spatial filter may also be referred to as a transmit beam (Tx beam) or a transmit-end spatial domain filter, and these terms are interchangeable. A receive spatial filter may also be referred to as a receive beam (Rx beam) or a receive-end spatial domain filter, and these terms are interchangeable. The combination of a transmit spatial filter and a receive spatial filter may also be referred to as a beam pair (i.e., a transmit beam (Tx beam) and a receive beam (Rx beam) pair), a spatial filter pair, or a spatial filter bank, and these terms are interchangeable.

[0283] In some embodiments, the identification information of the spatial filter may be an index or an identification of the spatial filter.

[0284] For example, the identification information of the transmit spatial filter may be an index or an identification of the transmit spatial filter.

[0285] For another example, the identification information of the receiving spatial filter may be an index or an identification of the receiving spatial filter.

[0286] For another example, the identification information of the combination of the transmit spatial filter and the receive spatial filter may be a combination index.

[0287] In some embodiments, the link quality information includes at least one of the following: Layer 1 Reference Signal Receiving Power (L1-RSRP), Layer 1 Reference Signal Received Quality (L1-RSRQ), Layer 1 Signal to Interference plus Noise Ratio (L1-SINR), and Layer 1 Received Signal Strength Indication (L1-RSSI).

[0288] In some embodiments, the first communication device is a terminal device, or the first communication device is a network device.

[0289] In an embodiment of the present application, for uplink spatial filter prediction based on downlink measurement results, the first network model is more suitable for deployment on the UE side, that is, the first communication device is a terminal device. Of course, for uplink spatial filter prediction based on downlink measurement results, the first network model can also be deployed on the network side. In this case, the terminal device is required to report the downlink measurement results. The following description takes the deployment of the first network model on the UE side as an example, that is, the terminal device performs uplink spatial filter prediction based on the downlink measurement results.

[0290] In an embodiment of the present application, for downlink spatial filter prediction based on uplink measurement results, the first network model is more suitable for deployment on the network (NW) side, that is, the first communication device is a network device. Of course, for downlink spatial filter prediction based on uplink measurement results, the first network model can also be deployed on the UE side. In this case, the network device is required to indicate the uplink measurement results to the terminal device. The following is an example of the first network model being deployed on the network (NW) side, that is, the network device performs downlink spatial filter prediction based on the uplink measurement results.

[0291] In an embodiment of the present application, when the first communication device is a terminal device, the first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, where K1 is a positive integer.

[0292] In an embodiment of the present application, when the first communication device is a network device, the first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0293] In an embodiment of the present application, the first communication device can implement uplink spatial filter prediction based on downlink measurement results based on the first network model, or the first communication device can implement downlink spatial filter prediction based on uplink measurement results based on the first network model, thereby reducing the overhead of beam (pair) prediction based on the first network model and improving the performance of the beam management system. The embodiment of the present application can be specifically implemented through uplink and downlink beam symmetry (beam correspondence).

[0294] For example, if the UE supports uplink and downlink beam symmetry (beam correspondence), the UE predicts the optimal K1 downlink receive beams through the first network model, and then reverses the K1 downlink receive beams to obtain the optimal K1 uplink transmit beams through the uplink and downlink beam symmetry.

[0295] For another example, if the NW supports uplink and downlink beam symmetry (beam correspondence), then the NW predicts the optimal K2 uplink receive beams through the first network model, and then reverses the K2 uplink receive beams to obtain the optimal K2 downlink transmit beams through the uplink and downlink beam symmetry.

[0296] In an embodiment of the present application, downlink measurement-assisted uplink beam (pair) prediction, or uplink measurement-assisted downlink beam (pair) prediction, can be implemented. The "assisted" here means that downlink or uplink measurement quantities (such as measured reference signal resource indices and / or their L1-RSRP values) are used as input to the AI / ML model.

[0297] In an embodiment of the present application, when downlink measurement assists uplink beam (pair) prediction, the UE measures the downlink beam scanning reference signal as the input of the model, the model outputs the prediction of the optimal uplink beam (pair) index, and the UE reports the uplink beam (pair) prediction result to the NW, and finally the NW completes the uplink beam indication. When uplink measurement assists downlink beam (pair) prediction, the UE sends the uplink beam scanning reference signal, the NW performs measurement and uses it as the input of the model, the model outputs the prediction of the optimal downlink beam (pair) index, and finally the NW completes the downlink beam indication.

[0298] It should be noted that an uplink beam (pair) can be an uplink transmit beam, or an uplink transmit beam and an uplink receive beam. Similarly, a downlink beam (pair) can be a downlink transmit beam, or a downlink transmit beam and a downlink receive beam.

[0299] In some embodiments, when the information included in the first measurement data set is obtained based on a downlink reference signal measurement set, the first communications device supports uplink spatial filter prediction based on downlink measurement results. Optionally, the first communications device is a terminal device.

[0300] That is, in this embodiment, the first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters, and identification information of the predicted K1 uplink receive spatial filters.

[0301] Specifically, for example, the first measurement data set includes link quality information measured based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters, and identification information of the K1 uplink receive spatial filters.

[0302] Specifically, for example, the first measurement data set includes link quality information obtained based on the downlink reference signal measurement set and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K1 uplink transmit spatial filters, identification information of the predicted K1 uplink transmit spatial filters and identification information of the K1 uplink receive spatial filters.

[0303] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in a downlink reference signal resource set. Optionally, the downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

[0304] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set include CSI-RS resources and / or SSB resources.

[0305] For example, assuming that the downlink reference signal measurement set is Set B, in order to implement uplink transmit beam prediction based on downlink measurement, or to implement uplink beam pair (i.e., uplink transmit beam and uplink receive beam) prediction based on downlink measurement, the NW sends a downlink reference signal based on Set B, and the UE needs to measure the downlink reference signal resources in Set B, i.e., CSI-RS resources and / or SSB resources. It should be noted that Set B can be composed of all downlink reference signal resources (i.e., full beam coverage) or a part of the downlink reference signal resources (i.e., achieving the goal of reducing overhead in the spatial domain). In addition, on the UE side, according to the configuration of the reference signal resources in Set B, the UE can use one or more receive beams for measurement.

[0306] Specifically, the schematic diagram of downlink beam (pair) measurement and uplink beam (pair) prediction can be shown in Figure 15, where the UE measures the downlink reference signal sent by the transmission reception point (TRP) based on the downlink reference signal measurement set (Set B), and the UE predicts K1 uplink transmit beams and K1 uplink receive beams based on the first reference signal prediction set (Set A).

[0307] In some embodiments, when the first measurement data set only includes link quality information measured based on the downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order;

[0308] The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

[0309] For example, there are two main input methods for the first network model. One input method is to input only the link quality of the downlink reference signal in Set B, such as L1-RSRP, in a fixed order (i.e., the first order). Another input method includes the downlink reference signal resource index in Set B and the link quality, such as L1-RSRP. The advantage of the second model is that the selection of Set B is more flexible.

[0310] Specifically, in the first model input method, the UE uses the L1-RSRP (or other performance indicators, such as L1-SINR, L1-RSSI, or L1-RSRQ) of the downlink reference signal measured by Set B in a fixed order (i.e., the first order) as the model input, as shown in Figure 16. The output is the index of the optimal K1 uplink beams (pairs) predicted by the model, with K1 = 1 used as an example in Figure 16.

[0311] Specifically, in the second model input method, the UE uses the L1-RSRP of the downlink reference signal measured by Set B and the downlink reference signal resource index in Set B as the model input, as shown in Figure 17. This differs from Figure 16, in that M downlink reference signal resource indices and the corresponding M link quality indicators, such as L1-RSRP, are used as model input. The advantage is that the UE can measure more flexibly without having to use the same input every time. Similarly, the model output is the predicted optimal K1 uplink beam (pair) indexes, using K1 = 1 as an example in Figure 17.

[0312] It should be noted that, because in FIG16 and FIG17 , the model outputs the optimal K1 uplink beams (pairs), it is not necessary to predict the RSRP received by the corresponding uplink at the NW.

[0313] In some embodiments, as Example 1, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the reference signal resources predicted by the first network model from the first reference signal prediction set.

[0314] Specifically, the reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources. Specifically, for example, the first reference signal prediction set may be Set A.

[0315] Optionally, in Example 1, the identification information of the K1 uplink transmit spatial filters may be represented by a reference signal resource index predicted by the first network model from the first reference signal prediction set.

[0316] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if spatial relationship information is configured or activated for the uplink reference signal resources in the first reference signal prediction set, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively receive spatial filters for the corresponding uplink reference signal resources.

[0317] For example, the predicted uplink transmit beam index corresponds to an uplink reference signal resource (e.g., an SRS resource). That is, the reference signal resources in the first reference signal prediction set include at least an uplink reference signal resource (e.g., an SRS resource). If spatial relationship information is configured and / or activated for the SRS resource, the UE uses the spatial relationship information as the uplink transmit beam. Correspondingly, the NW uses the receive beam that receives the SRS resource for reception.

[0318] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are determined based on a first uplink scanning method (such as a U3 process); wherein, in the first uplink scanning method, an uplink reference signal is sent using the uplink transmit spatial filter corresponding to the predicted uplink reference signal resource, different receive spatial filters are used to receive the uplink reference signal, and the optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

[0319] For example, the predicted uplink transmit beam index corresponds to the uplink reference signal resource (such as SRS resource), that is, the reference signal resource in the first reference signal prediction set includes at least the uplink reference signal resource (such as SRS resource). If the SRS resource is not configured and / or the spatial relationship information is activated, for example, the SRS resource in the SRS resource set for uplink beam scanning, the UE only knows the transmission direction of the SRS resource, and the NW does not know in advance how to receive the SRS resource. Then the UE needs to perform uplink beam scanning. For example, in the U3 process, the UE fixes the optimal uplink beam direction, and the NW uses different receiving beams to receive, so as to find the optimal receiving beam corresponding to the SRS resource.

[0320] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources (such as CSI-RS resources) in the first reference signal prediction set are configured or activated with a TCI state, or if the downlink reference signal resources (such as SSB resources) in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resource predicted by the first network model from the first reference signal prediction set. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively the transmit spatial filters of the corresponding downlink reference signal resources.

[0321] For example, the predicted uplink transmit beam index corresponds to the downlink reference signal resource (such as CSI-RS resource or SSB resource), that is, the reference signal resource in the first reference signal prediction set includes at least downlink reference signal resources (such as CSI-RS resource or SSB resource). If the CSI-RS resource (TCI state is configured and / or activated) or SSB resource (the UE has measured it in advance), then the UE can use the corresponding receive beam as the uplink transmit beam; the NW uses the transmit beam of the CSI-RS resource or SSB resource as the uplink receive beam.

[0322] Optionally, in Example 1, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the first downlink scanning mode (such as the P3 process); wherein, in the first downlink scanning mode, the downlink reference signal is sent using the downlink transmit spatial filter corresponding to the predicted downlink reference signal resource, the downlink reference signal is received using different receive spatial filters, and the optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal. Optionally, the uplink receive spatial filters corresponding to the K1 uplink transmit spatial filters are respectively the downlink transmit spatial filters corresponding to the predicted downlink reference signal resources.

[0323] For example, the predicted uplink transmit beam index corresponds to the downlink reference signal resource (such as CSI-RS resource or SSB resource), that is, the reference signal resource in the first reference signal prediction set includes at least downlink reference signal resources (such as CSI-RS resource or SSB resource). If the CSI-RS resource (not configured in advance and / or the TCI state is not activated) or the SSB resource (the UE has not measured in advance), then a downlink beam scanning process is required, such as the P3 process. The NW uses a fixed transmit beam, and the UE uses different receive beams to find the optimal receive beam of the fixed transmit beam. The downlink receive beam is then used as the optimal uplink transmit beam.

[0324] In some embodiments, as Example 2, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set. That is, the reference signal resources in the first reference signal prediction set include uplink reference signal resources and downlink reference signal resources.

[0325] Optionally, in Example 2, the identification information of the K1 uplink transmit spatial filters can be represented by the uplink reference signal resource index predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters can be represented by the downlink reference signal resource index predicted by the first network model from the first reference signal prediction set.

[0326] Optionally, in Example 2, the identification information of the K1 uplink transmit spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or,

[0327] The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0328] For example, the model outputs the uplink transmit beam and the uplink receive beam, that is, the index of the uplink beam pair. An abstract beam pair index can be used to represent the predicted beam pair. It is also possible to consider using the resource index in NR to represent it. For example, the transmit beam in the beam pair can correspond to the SRS resource (configured with spatial relationship information), and the receive beam can correspond to it with CSI-RS (configured with TCI state) or SSB resource. This means that the UE uses a beam of a predicted optimal SRS resource as the uplink transmit beam, and the NW uses the reverse implementation of the corresponding CSI-RS or SSB transmit beam as the uplink receive beam.

[0329] In some embodiments, the reference signal resources in the first reference signal prediction set are part or all of the reference signal resources in a preconfigured reference signal resource set. Optionally, the downlink reference signal resources in the first reference signal prediction set include CSI-RS resources and / or block SSB resources; and / or the uplink reference signal resources in the first reference signal prediction set include SRS resources.

[0330] In some embodiments, the first communications device sends first prediction information, wherein the first prediction information includes part or all of the reference signal resource indexes predicted by the first network model from the first reference signal prediction set.

[0331] In some embodiments, the first prediction information may be carried by at least one of the following:

[0332] Radio Resource Control (RRC) signaling, Uplink Control Information (UCI), Media Access Control Control Element (MAC CE) signaling.

[0333] In some embodiments, in the above example 1, the predicted uplink transmit beam index can correspond to an uplink reference signal resource (such as an SRS resource) and / or a downlink reference signal resource (such as a CSI-RS resource and / or an SSB resource). Therefore, when the first prediction data set includes identification information of the predicted K1 uplink transmit spatial filters, the first prediction information may include SRS resources in addition to CSI-RS resources and / or SSB resources.

[0334] For example, the first prediction information can be carried by the CSI report, and the first prediction information includes a CSI-RS resource indication (CSI-RS Resource Indicator, CRI) (i.e., CSI-RS resource index) or an SSB resource indication (SSBRI) (i.e., SSB resource index). Of course, the L1-RSRP corresponding to the CRI or SSBRI can also be reported at the same time, but the CRI or SSBRI expresses the receive beam corresponding to the uplink transmit beam of the UE, as shown in Table 1. The reporting format may include L1-RSRP and differential L1-RSRP, but it is still the corresponding downlink link quality, or it may not include it (indicated by []).

[0335] Table 1 Downlink reference signal resources reported as uplink receive beams

[0336] It should be noted that in the above Table 1, the L1-RSRP corresponding to CRI or SSBRI#1 is L1-RSRP#1, the L1-RSRP corresponding to CRI or SSBRI#2 is L1-RSRP#2, the L1-RSRP corresponding to CRI or SSBRI#3 is L1-RSRP#3, and the L1-RSRP corresponding to CRI or SSBRI#4 is L1-RSRP#4. Differential L1-RSRP#2 can be the difference between L1-RSRP#2 and L1-RSRP#1, Differential L1-RSRP#3 can be the difference between L1-RSRP#3 and L1-RSRP#1, and Differential L1-RSRP#4 can be the difference between L1-RSRP#4 and L1-RSRP#1.

[0337] For example, the first prediction information can be carried by a CSI report and includes an SRS resource index, which represents the optimal uplink transmit beam predicted by the model, as shown in Table 2. If the NW knows how to receive the SRS resource, then the NW receives it according to the spatial relationship information of the SRS resource (i.e., the uplink beam information); otherwise, the NW can only scan the receive beam for the SRS resource to find a suitable uplink receive beam.

[0338] Table 2 Uplink reference signal resources reported as uplink transmit beams

[0339] In some embodiments, in the above-mentioned Example 2, the predicted uplink transmit beam index may correspond to an uplink reference signal resource (such as an SRS resource), and the predicted uplink receive beam index may correspond to a downlink reference signal resource (such as a CSI-RS resource and / or an SSB resource). Therefore, when the first prediction data set includes the identification information of the predicted K1 uplink transmit spatial filters and the identification information of the K1 uplink receive spatial filters, the content included in the first prediction information may include CSI-RS resources and / or SSB resources and SRS resources.

[0340] For example, when the first predicted data set includes the identification information of K1 predicted uplink transmit spatial filters and the identification information of K1 uplink receive spatial filters, the transmit beam (associated with the SRS resource) and the receive beam (associated with the CSI-RS resource or SSB resource), referring to Table 3, the first CRI or SSBRI corresponds to the first SRS resource index, the second CRI or SSBRI corresponds to the second SRS resource index, and so on.

[0341] Table 3 Uplink reference signal resources reported as uplink transmit beams

[0342] For example, when the first predicted data set includes the identification information of the predicted K1 uplink transmit spatial filters and the identification information of the K1 uplink receive spatial filters, only the receive beam (associated with the CSI-RS resource or the SSB resource) is reported, and the transmit beam is implemented as the UE (no need to report). The specific reporting format can be referred to Table 1 above and will not be repeated here.

[0343] In some embodiments, after the first communication device sends the first prediction information, the first communication device receives the first indication information;

[0344] The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

[0345] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index.

[0346] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0347] In some embodiments, the first indication information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0348] For example, after the UE reports the uplink transmit beam or uplink beam pair, the NW can indicate the transmit beam based on the UE's report. In NR, indications based on spatial relationship information can be used, or indications of a unified TCI state (uplink TCI state or joint TCI state) can be used. The core content of the indication is the UE's transmit beam, which includes a downlink reference signal resource (such as a CSI-RS resource or SSB resource reported by the UE) on a specific bandwidth part (Band Width Part, BWP) under a specific carrier component (Component carrier, CC), or an uplink reference signal resource (such as an SRS resource reported by the UE).

[0349] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device sends first capability information; wherein the first capability information is used to indicate that the first communication device supports uplink spatial filter prediction based on downlink measurement results.

[0350] Specifically, before the NW configures the measurement resources required by the model for the UE, the UE needs to inform the NW through capability reporting whether it supports prediction of uplink beams (pairs) based on downlink measurements.

[0351] In some embodiments, the first capability information further includes at least one of the following:

[0352] The maximum number of downlink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0353] The maximum number of supported configured downlink reference signal measurement sets;

[0354] The maximum number of downlink reference signal measurement sets supported for simultaneous measurement;

[0355] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0356] The maximum number of downlink reference signal measurement sets supported on a CC or a BWP;

[0357] The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set;

[0358] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0359] The maximum value of K1;

[0360] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

[0361] For example, before the NW configures the measurement resources required by the model for the UE, the UE needs to report whether it supports the prediction of uplink beams (pairs) based on downlink measurements through its capabilities. If it supports the prediction of uplink beams (pairs) based on downlink measurements, the capabilities reported by the UE include but are not limited to at least one of the following:

[0362] The maximum number of beam (pair) measurement sets supported across all CCs / BWPs, including the maximum number of measurement sets that can be configured and the maximum number of measurement sets that a UE can measure simultaneously.

[0363] The maximum number of beam (pair) prediction sets supported on all CCs / BWPs;

[0364] The maximum number of beam (pair) measurement sets supported on a CC / BWP is Nmax;

[0365] In each measurement set Set Bn (1<=n<=N), the maximum number of downlink SSB resources and / or CSI-RS resources that can be measured;

[0366] The maximum number of beam (pair) prediction sets supported on a CC / BWP, i.e., Pmax;

[0367] In each prediction set Set Ap (1 <= p <= P), the maximum number of beams (pairs) that can be predicted;

[0368] The number P of prediction sets on a CC / BWP may be the same as the number N of measurement sets (P=N). In this case, the prediction sets and measurement sets of beams (pairs) may be mapped one-to-one.

[0369] In some embodiments, the first capability information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and UCI.

[0370] In some embodiments, if the UE supports uplink beam (pair) prediction based on downlink measurement, and the model used for prediction is a cell-specific model, the NW will pass the model adapted to the actual deployment environment and beam (pair) configuration to the UE. The signaling transmitted by the model can be signaling within the 3GPP framework, such as the NW describing the structure of one or more models and the initial parameters of each node based on the open format of RRC signaling. Next, the NW can use RRC or MAC CE or DCI to indicate a special model identifier (model ID) to the UE (an ID defined in the model lifecycle management to identify different models). Another implementation method is that the UE starts a model prepared in advance and optionally informs the NW of the description information of the model, such as through an open format or a more concise model ID. In the process of using model ID as a model communication, one of the most important assumptions is that the NW and the UE have a clear consensus and understanding of the model details expressed by the model ID.

[0371] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device receives first information; wherein the first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set among multiple pre-configured downlink reference signal measurement sets, the first reference signal prediction set among multiple pre-configured reference signal prediction sets.

[0372] For example, the NW configures and / or activates the measurement set Set B required for model input for the UE. The NW uses RRC signaling to configure one or more Set Bn (1 <= n <= N) for the UE. Set Bn, as a beam (pair) measurement set, can include CSI-RS resources and / or SSB resources. If the NW configures multiple Set Bn (1 <= n <= N) for the UE, then the NW also needs to use MAC CE signaling to activate one of the multiple configured Set Bs based on the actual deployment and antenna configuration. Otherwise, the UE only uses the configured Set B.

[0373] For example, the NW configures and / or activates the uplink beam (pair) prediction set Set A output by the model for the UE. The NW uses RRC signaling to configure one or more uplink beam (pair) prediction sets Set Ap (1<=p<=P) for the UE. Set Ap, as a beam (pair) prediction set, can include CSI-RS resources, SSB resources, and / or SRS resources. If the NW configures multiple sets of Set Ap (1<=p<=P), then the NW also needs to use MAC CE signaling to activate one set of Set A in the multiple configurations based on the actual deployment and antenna configuration. Otherwise, only the configured set of Set A is used.

[0374] In some embodiments, the first information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0375] In some embodiments, a flowchart of predicting an uplink beam based on downlink measurement results may be shown in FIG18 .

[0376] In some embodiments, when the information included in the first measurement data set is obtained based on an uplink reference signal measurement set, the first communications device supports downlink spatial filter prediction based on uplink measurement results. Optionally, the first communications device is a network device.

[0377] That is, in this embodiment, the first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of the K2 downlink receive spatial filters.

[0378] Specifically, for example, the first measurement data set includes link quality information measured based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters, and identification information of the K2 downlink receive spatial filters.

[0379] Specifically, for example, the first measurement data set includes link quality information obtained based on the uplink reference signal measurement set and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of the K2 downlink receive spatial filters.

[0380] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in an uplink reference signal resource set. Optionally, the uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

[0381] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set include SRS resources.

[0382] For example, assuming that the uplink reference signal measurement set is Set D, in order to implement downlink transmit beam prediction based on uplink measurement, or to implement downlink beam pair (i.e., downlink transmit beam and downlink receive beam) prediction based on uplink measurement, the UE sends an uplink reference signal based on Set D, and the NW needs to measure the uplink reference signal resources in Set D, i.e., SRS resources. It should be noted that Set D can be composed of all uplink reference signal resources (i.e., full beam coverage) or a portion of the uplink reference signal resources (i.e., achieving the goal of reducing overhead in the spatial domain). In addition, on the NW side, based on the configuration of the reference signal resources in Set D, the NW can use one or more receive beams for measurement.

[0383] Specifically, the schematic diagram of uplink beam (pair) measurement and downlink beam (pair) prediction can be shown in Figure 19, where TRP (NW) measures the uplink reference signal sent by the UE based on the uplink reference signal measurement set (Set D), and TRP (NW) predicts K2 downlink transmit beams and K2 downlink receive beams based on the second reference signal prediction set (Set C).

[0384] In some embodiments, when the first measurement data set only includes link quality information measured based on the uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the first network model in the second order;

[0385] The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

[0386] For example, there are two main input methods for the first network model. One model input method is to input only the link quality of the uplink reference signal (e.g., SRS) in Set D in a fixed order (i.e., the second order), such as L1-RSRP. Another model input method includes the index of the uplink reference signal resource (e.g., SRS resource) in Set D and the link quality, such as L1-RSRP. The advantage of the second model is that the selection of Set D is more flexible.

[0387] Specifically, in the first model input method, the NW uses the L1-RSRP (or other performance indicators, such as L1-SINR, L1-RSSI, or L1-RSRQ) of the uplink reference signal measured by Set D in a fixed order (i.e., the second order) as the model input, as shown in Figure 20. The output is the index of the optimal K2 downlink beams (pairs) predicted by the model, with K2 = 1 used as an example in Figure 20.

[0388] Specifically, in the second model input method, the NW uses the L1-RSRP of the uplink reference signal measured in Set D and the uplink reference signal resource index in Set D as the model input, as shown in Figure 21. This differs from Figure 20, which uses M uplink reference signal resource indices and the corresponding M link quality indicators, such as L1-RSRP, as the model input. The advantage is that the NW can measure more flexibly without having to use the same input every time. Similarly, the model output is the predicted optimal K2 downlink beam (pair) index, using K2 = 1 as an example in Figure 21.

[0389] It should be noted that, because in Figures 20 and 21, the model outputs the optimal K2 downlink beams (pairs), it is not necessary to predict the corresponding downlink RSRP received at the UE.

[0390] In some embodiments, as Example 3, when the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the reference signal resources predicted by the first network model from the second reference signal prediction set.

[0391] Specifically, the reference signal resources in the second reference signal prediction set include downlink reference signal resources. Optionally, the downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources. Specifically, for example, the second reference signal prediction set may be Set C.

[0392] Optionally, in Example 3, if the downlink reference signal resources (such as CSI-RS resources) in the second reference signal prediction set are configured or activated with the TCI state, or if the downlink reference signal resources (such as SSB resources) in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

[0393] For example, the downlink optimal transmit beam output by the model corresponds to the downlink reference signal. If there is a CSI-RS resource (TCI state is configured and / or activated) or an SSB resource (the UE has measured in advance and knows to use the corresponding receive beam), the UE uses the corresponding receive beam for reception.

[0394] Optionally, in Example 3, if the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode; wherein, in the second downlink scanning mode (such as the P2 process), the downlink reference signal is sent using the downlink transmit spatial filter corresponding to the predicted downlink reference signal resource, different receive spatial filters are used to receive the downlink reference signal, and the optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0395] For example, the downlink optimal transmit beam output by the model corresponds to the downlink reference signal. If the CSI-RS resource (TCI state is not configured and / or activated) or the SSB resource (the UE has not measured in advance and therefore does not know to use the corresponding receive beam), then the NW needs to perform a downlink beam scanning process, namely the P2 process. The NW uses a fixed predicted transmit beam direction to send, and the UE uses different receive beams to receive, so as to find the receive beam corresponding to the optimal downlink transmit beam.

[0396] In some embodiments, as Example 4, when the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the second reference signal prediction set. Optionally, the uplink reference signal resources in the second reference signal prediction set include SRS resources.

[0397] Optionally, in Example 4, the identification information of the K2 downlink receive spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the second reference signal prediction set; and / or,

[0398] The identification information of the K2 downlink transmit spatial filters is identification information of downlink transmit spatial filters corresponding to downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

[0399] For example, the model can output only the transmit beam portion of the optimal downlink beam pair, namely the CSI-RS and / or SSB resource index. However, this requires that the UE has previously measured the predicted SSB resources and the TCI status of the configured and / or activated CSI-RS, meaning that the UE knows which receive beam to use for reception.

[0400] For example, the model can also output downlink transmit beams (corresponding to CSI-RS and / or SSB) and downlink receive beams (corresponding to SRS). For the receive beam portion, the UE needs to reverse the SRS transmit beam to create a downlink receive beam.

[0401] In some embodiments, the first communication device sends second indication information;

[0402] In which, the second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters, or the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of the K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters.

[0403] In some embodiments, when the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or,

[0404] When the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0405] Specifically, the NW indicates the downlink transmit beam and performs beam indication based on the traditional TCI state or the unified TCI state.

[0406] Specifically, NW indicates the downlink beam pair. If the model only outputs the CSI-RS and / or SSB index, the beam indication of the TCI state can be used. As mentioned above, the premise is that the UE needs to have the corresponding receive beam in advance. If the model outputs a combination of the CSI-RS and / or SSB index (indicating the transmit beam) and the SRS index (indicating the receive beam), it is clear that the traditional beam indication based on the TCI state is not sufficient. For the receive beam in the beam pair, the SRS resource is used to represent it.

[0407] Specifically, the SRS resource index may be carried in the second unified TCI state in the MAC CE and / or DCI indicated by the NW. The UE uses the transmit beam of the SRS resource contained in the second unified TCI state as the downlink receive beam.

[0408] In some embodiments, the second indication information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0409] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device receives second capability information;

[0410] The second capability information includes at least one of the following:

[0411] The maximum number of uplink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0412] The maximum number of supported configured uplink reference signal measurement sets;

[0413] The maximum number of uplink reference signal measurement sets supported for simultaneous transmission;

[0414] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0415] The maximum number of uplink reference signal measurement sets supported on a CC or a BWP;

[0416] The maximum number of uplink reference signal resources supported in an uplink reference signal measurement set;

[0417] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0418] The maximum value of K2;

[0419] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

[0420] Specifically, before the NW configures the measurement resources required for the model for the UE, the UE needs to report its relevant capabilities to the NW. It should be noted that the protocol can support the UE's ability to report uplink beam scanning based on SRS, so the UE does not need to report whether it supports downlink beam (pair) prediction based on uplink measurement. The capabilities reported by the UE include but are not limited to at least one of the following:

[0421] The maximum number of beam (pair) measurement sets supported for transmission on all CCs / BWPs, including the maximum number of measurement sets that can be configured and the maximum number of measurement sets that a UE can send simultaneously.

[0422] The maximum number of beam (pair) prediction sets supported on all CCs / BWPs;

[0423] The maximum number of beam (pair) measurement sets that can be sent on a CC / BWP is Smax;

[0424] In each measurement set Set Ds (1 <= s <= S), the maximum number of uplink SRS resources that can be sent;

[0425] The maximum number of beam (pair) prediction sets supported on a CC / BWP, i.e., Tmax;

[0426] In each prediction set Set Ct (1 <= t <= T), the maximum number of beams (pairs) that can be predicted;

[0427] The number T of prediction sets on a CC / BWP may be the same as the number S of measurement sets (S=T). In this case, the prediction sets and measurement sets of beams (pairs) may be mapped one-to-one.

[0428] In some embodiments, the second capability information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and UCI.

[0429] In this embodiment, because the model is deployed on the NW side, there is no need to transfer the model from the NW to the UE.

[0430] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the first communication device sends second information; wherein,

[0431] The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0432] For example, the NW configures and / or activates an SRS-based measurement set, Set D, for the UE. The NW uses RRC signaling to configure one or more Set Ds (1 <= s <= S) for the UE. Set Ds, as an uplink beam (pair) measurement set, contains SRS resources. If the NW configures multiple Set Ds (1 <= s <= S) for the UE, the NW also needs to use MAC CE signaling to activate one of the multiple configured Set Ds, based on the actual deployment and antenna configuration. Otherwise, the UE uses only the configured Set D.

[0433] For example, the NW configures and / or activates the downlink beam (pair) prediction set Set C output by the model for the UE (the purpose of configuring the prediction set for the UE here is not to allow the UE to predict the downlink beam (pair), but to let the UE know the range of the NW's downlink beam (pair) indication). The NW uses RRC signaling to configure one or more uplink beam (pair) prediction sets Set Ct (1<=t<=T) for the UE. Set Ct as a downlink beam (pair) prediction set can include CSI-RS resources, SSB resources, and / or SRS resources. If the NW configures multiple sets of Set Ct (1<=t<=T), then the NW also needs to use MAC CE signaling to activate one set of Set C in the multiple configurations based on the actual deployment and antenna configuration. Otherwise, only the configured set of Set C is used.

[0434] In some embodiments, the second information may be carried by at least one of the following: RRC signaling, MAC CE signaling, and DCI.

[0435] In some embodiments, a flowchart of predicting a downlink beam based on uplink measurement results may be as shown in FIG. 22 .

[0436] Therefore, in an embodiment of the present application, the first communication device can implement uplink spatial filter prediction based on downlink measurement results based on the first network model, or the first communication device can implement downlink spatial filter prediction based on uplink measurement results based on the first network model, thereby reducing the overhead and latency of uplink spatial filter management and / or downlink spatial filter management, and improving the performance of the beam management system. The embodiment of the present application can be specifically implemented through uplink and downlink beam symmetry (beam correspondence).

[0437] The above text, in combination with Figures 14 to 23, describes in detail the method embodiment of the present application. The following text, in combination with Figures 24 to 29, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0438] FIG24 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG24 , the terminal device 400 includes:

[0439] The communication unit 410 is used to send first capability information; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

[0440] In some embodiments, when the terminal device supports uplink spatial filter prediction based on downlink measurement results, the terminal device 400 further includes: a processing unit 420;

[0441] The processing unit 420 is configured to input a first measurement data set into a first network model and output a first prediction data set;

[0442] The first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, where K1 is a positive integer.

[0443] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in a downlink reference signal resource set.

[0444] In some embodiments, the downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

[0445] In some embodiments, when the first measurement data set only includes link quality information measured based on the downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order;

[0446] The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

[0447] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from the first reference signal prediction set;

[0448] The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

[0449] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted from the first reference signal prediction set by the first network model.

[0450] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are receiving spatial filters of corresponding uplink reference signal resources.

[0451] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0452] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on a first uplink scanning mode;

[0453] In this first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to a predicted uplink reference signal resource, and different receive spatial filters are used to receive the uplink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

[0454] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are configured or the transmission configuration indication TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0455] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are transmit spatial filters of corresponding downlink reference signal resources.

[0456] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or activated with a TCI state, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is identification information of a downlink receive spatial filter determined based on the first downlink scanning mode;

[0457] In this first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0458] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmit spatial filters are respectively downlink transmit spatial filters corresponding to the predicted downlink reference signal resources.

[0459] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0460] In some embodiments, the identification information of the K1 uplink transmit spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or,

[0461] The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0462] In some embodiments, the communication unit 410 is further configured to send first prediction information, wherein the first prediction information includes part or all of the reference signal resource indexes predicted by the first network model from the first reference signal prediction set.

[0463] In some embodiments, the communication unit 410 is further configured to receive first indication information;

[0464] The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

[0465] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index; or,

[0466] When the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is the downlink reference signal resource index and the uplink reference signal resource index.

[0467] In some embodiments, the downlink reference signal resources in the first reference signal prediction set include channel state information reference signal CSI-RS resources and / or synchronization signal block SSB resources; and / or,

[0468] The uplink reference signal resources in the first reference signal prediction set include sounding reference signal SRS resources.

[0469] In some embodiments, before the terminal device performs spatial filter prediction based on the first network model, the communication unit 410 is further configured to receive first information; wherein,

[0470] The first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set in a plurality of pre-configured downlink reference signal measurement sets, the first reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0471] In some embodiments, when the first capability information indicates that the terminal device supports uplink spatial filter prediction based on downlink measurement results, the first capability information further includes at least one of the following:

[0472] The maximum number of downlink reference signal measurement sets supported on all pre-configured carrier components CC or all bandwidth parts BWP;

[0473] The maximum number of supported configured downlink reference signal measurement sets;

[0474] The maximum number of downlink reference signal measurement sets supported for simultaneous measurement;

[0475] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0476] The maximum number of downlink reference signal measurement sets supported on a CC or a BWP;

[0477] The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set;

[0478] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0479] The maximum value of K1;

[0480] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

[0481] In some embodiments, when the terminal device supports downlink spatial filter prediction based on uplink measurement results, the communication unit 410 is further configured to receive second indication information;

[0482] The second indication information is used to indicate the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, or the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters;

[0483] The identification information of the K2 downlink transmit spatial filters and / or the identification information of the K2 downlink receive spatial filters belong to a second predicted data set output by a second network model deployed on the network side after inputting a second measured data set;

[0484] Among them, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: the predicted identification information of the K2 downlink transmit spatial filters, the predicted identification information of the K2 downlink transmit spatial filters and the identification information of the K2 downlink receive spatial filters, where K2 is a positive integer.

[0485] In some embodiments, when the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or,

[0486] When the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0487] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

[0488] In some embodiments, the uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

[0489] In some embodiments, when the second measurement data set only includes link quality information measured based on the uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the second network model in a second order;

[0490] The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

[0491] In some embodiments, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the second network model from the second reference signal prediction set;

[0492] The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

[0493] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0494] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode;

[0495] In this second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal. The optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0496] In some embodiments, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the second network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0497] In some embodiments, the identification information of the K2 downlink receive spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the second network model from the second reference signal prediction set; and / or,

[0498] The identification information of the K2 downlink transmit spatial filters is respectively identification information of downlink transmit spatial filters corresponding to downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0499] In some embodiments, the downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources.

[0500] In some embodiments, the uplink reference signal resources in the second reference signal prediction set include SRS resources.

[0501] In some embodiments, before the terminal device receives the second indication information, the communication unit 410 is further configured to receive second information; wherein,

[0502] The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0503] In some embodiments, the first capability information includes at least one of the following:

[0504] The maximum number of uplink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0505] The maximum number of supported configured uplink reference signal measurement sets;

[0506] The maximum number of uplink reference signal measurement sets supported for simultaneous transmission;

[0507] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0508] The maximum number of uplink reference signal measurement sets supported on a CC or a BWP;

[0509] The maximum number of uplink reference signal resources supported in an uplink reference signal measurement set;

[0510] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0511] The maximum value of K2;

[0512] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

[0513] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0514] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the terminal device 400 are respectively for realizing the corresponding processes of the terminal device in the method 200 shown in Figure 14. For the sake of brevity, they will not be repeated here.

[0515] Figure 25 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in Figure 25, the network device 500 includes:

[0516] The communication unit 510 is used to receive first capability information; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

[0517] In some embodiments, when the terminal device supports uplink spatial filter prediction based on downlink measurement results, the communication unit 510 is further configured to receive first prediction information, wherein the first prediction information includes at least one of the following: partial or all reference signal resource indexes associated with identification information of K1 uplink transmit spatial filters, partial or all reference signal resource indexes associated with identification information of K1 uplink receive spatial filters;

[0518] The identification information of the K1 uplink transmit spatial filters and / or the identification information of the K1 uplink receive spatial filters belong to a first predicted data set output by a first network model deployed on the terminal side after inputting a first measurement data set;

[0519] The first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of the K1 uplink transmit spatial filters obtained by prediction, identification information of the K1 uplink transmit spatial filters obtained by prediction, and identification information of the K1 uplink receive spatial filters obtained, where K1 is a positive integer.

[0520] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in a downlink reference signal resource set.

[0521] In some embodiments, the downlink reference signal resource set is configured by the network device, or the downlink reference signal resource set is agreed upon by a protocol.

[0522] In some embodiments, when the first measurement data set only includes link quality information measured based on the downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order;

[0523] The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

[0524] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from the first reference signal prediction set;

[0525] The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

[0526] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted from the first reference signal prediction set by the first network model.

[0527] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are receiving spatial filters of corresponding uplink reference signal resources.

[0528] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0529] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on a first uplink scanning mode;

[0530] In this first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to a predicted uplink reference signal resource, and different receive spatial filters are used to receive the uplink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

[0531] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are configured or the transmission configuration indication TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0532] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are transmit spatial filters of corresponding downlink reference signal resources.

[0533] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or activated with a TCI state, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is identification information of a downlink receive spatial filter determined based on the first downlink scanning mode;

[0534] In this first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0535] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmit spatial filters are respectively downlink transmit spatial filters corresponding to the predicted downlink reference signal resources.

[0536] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0537] In some embodiments, the identification information of the K1 uplink transmit spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or,

[0538] The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0539] In some embodiments, the communication unit 510 is further configured to send first indication information;

[0540] The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

[0541] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index; or,

[0542] When the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is the downlink reference signal resource index and the uplink reference signal resource index.

[0543] In some embodiments, the downlink reference signal resources in the first reference signal prediction set include channel state information reference signal CSI-RS resources and / or synchronization signal block SSB resources; and / or,

[0544] The uplink reference signal resources in the first reference signal prediction set include sounding reference signal SRS resources.

[0545] In some embodiments, before the network device receives the first prediction information, the communication unit 510 is further configured to send first information; wherein,

[0546] The first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set in a plurality of pre-configured downlink reference signal measurement sets, the first reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0547] In some embodiments, the first capability information further includes at least one of the following:

[0548] The maximum number of downlink reference signal measurement sets supported on all pre-configured carrier components CC or all bandwidth parts BWP;

[0549] The maximum number of supported configured downlink reference signal measurement sets;

[0550] The maximum number of downlink reference signal measurement sets supported for simultaneous measurement;

[0551] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0552] The maximum number of downlink reference signal measurement sets supported on a CC or a BWP;

[0553] The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set;

[0554] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0555] The maximum value of K1;

[0556] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

[0557] In some embodiments, when the terminal device supports downlink spatial filter prediction based on uplink measurement results, the network device 500 further includes: a processing unit 520;

[0558] The processing unit 520 is configured to input the second measurement data set into the second network model and output a second prediction data set;

[0559] Among them, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of the predicted K2 downlink transmit spatial filters, identification information of the predicted K2 downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0560] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

[0561] In some embodiments, the uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

[0562] In some embodiments, when the second measurement data set only includes link quality information measured based on the uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the second network model in a second order;

[0563] The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

[0564] In some embodiments, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the second network model from the second reference signal prediction set;

[0565] The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

[0566] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0567] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode;

[0568] In this second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal. The optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0569] In some embodiments, when the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the second network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0570] In some embodiments, the identification information of the K2 downlink receive spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the second network model from the second reference signal prediction set; and / or,

[0571] The identification information of the K2 downlink transmit spatial filters is respectively identification information of downlink transmit spatial filters corresponding to downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

[0572] In some embodiments, the communication unit 510 is also used to send second indication information; wherein, the second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters, or, the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of the K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters.

[0573] In some embodiments, when the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or,

[0574] When the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0575] In some embodiments, the downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources.

[0576] In some embodiments, the uplink reference signal resources in the second reference signal prediction set include SRS resources.

[0577] In some embodiments, before the network device performs spatial filter prediction based on the second network model, the communication unit 510 is further configured to send second information; wherein,

[0578] The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0579] In some embodiments, the first capability information further includes at least one of the following:

[0580] The maximum number of uplink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0581] The maximum number of supported configured uplink reference signal measurement sets;

[0582] The maximum number of uplink reference signal measurement sets supported for simultaneous transmission;

[0583] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0584] The maximum number of uplink reference signal measurement sets supported on a CC or a BWP;

[0585] The maximum number of uplink reference signal resources supported in an uplink reference signal measurement set;

[0586] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0587] The maximum value of K2;

[0588] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

[0589] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0590] It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the network device 500 are respectively for implementing the corresponding processes of the network device in the method 200 shown in Figure 14. For the sake of brevity, they will not be repeated here.

[0591] Figure 26 shows a schematic block diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 is a first communication device. As shown in Figure 26, the communication device 600 includes: a processing unit 610;

[0592] The processing unit 610 is configured to input a first measurement data set into a first network model and output a first prediction data set;

[0593] The first measurement data set includes at least one of the following: link quality information obtained by measurement based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained by measurement based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters, and identification information of K1 uplink receive spatial filters, where K1 is a positive integer; or

[0594] The first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

[0595] In some embodiments, when the information included in the first measurement data set is obtained based on the downlink reference signal measurement set, the first communications device supports uplink spatial filter prediction based on downlink measurement results.

[0596] In some embodiments, the downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in a downlink reference signal resource set.

[0597] In some embodiments, the downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

[0598] In some embodiments, when the first measurement data set only includes link quality information measured based on the downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order;

[0599] The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

[0600] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from the first reference signal prediction set;

[0601] The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

[0602] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted from the first reference signal prediction set by the first network model.

[0603] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are receiving spatial filters of corresponding uplink reference signal resources.

[0604] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0605] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on a first uplink scanning mode;

[0606] In this first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to a predicted uplink reference signal resource, and different receive spatial filters are used to receive the uplink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

[0607] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are configured or the transmission configuration indication TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0608] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are transmit spatial filters of corresponding downlink reference signal resources.

[0609] In some embodiments, when the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or activated with a TCI state, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is identification information of a downlink receive spatial filter determined based on the first downlink scanning mode;

[0610] In this first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0611] In some embodiments, the uplink receiving spatial filters corresponding to the K1 uplink transmit spatial filters are respectively downlink transmit spatial filters corresponding to the predicted downlink reference signal resources.

[0612] In some embodiments, when the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0613] In some embodiments, the identification information of the K1 uplink transmit spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or,

[0614] The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

[0615] In some embodiments, the communication device 600 includes: a communication unit 620;

[0616] The communication unit 620 is configured to send first prediction information, where the first prediction information includes part or all of the reference signal resource indexes predicted by the first network model from the first reference signal prediction set.

[0617] In some embodiments, the communication device 600 includes: a communication unit 620;

[0618] The communication unit 620 is configured to receive first indication information;

[0619] The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

[0620] In some embodiments, when the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index; or,

[0621] When the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is the downlink reference signal resource index and the uplink reference signal resource index.

[0622] In some embodiments, the downlink reference signal resources in the first reference signal prediction set include channel state information reference signal CSI-RS resources and / or synchronization signal block SSB resources; and / or,

[0623] The uplink reference signal resources in the first reference signal prediction set include sounding reference signal SRS resources.

[0624] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the communication device 600 includes: a communication unit 620;

[0625] The communication unit 620 is configured to send first capability information, wherein the first capability information is used to indicate that the first communication device supports uplink spatial filter prediction based on downlink measurement results.

[0626] In some embodiments, the first capability information further includes at least one of the following:

[0627] The maximum number of downlink reference signal measurement sets supported on all pre-configured carrier components CC or all bandwidth parts BWP;

[0628] The maximum number of supported configured downlink reference signal measurement sets;

[0629] The maximum number of downlink reference signal measurement sets supported for simultaneous measurement;

[0630] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0631] The maximum number of downlink reference signal measurement sets supported on a CC or a BWP;

[0632] The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set;

[0633] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0634] The maximum value of K1;

[0635] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

[0636] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the communication device 600 includes: a communication unit 620;

[0637] The communication unit 620 is used to receive first information; wherein,

[0638] The first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set in a plurality of pre-configured downlink reference signal measurement sets, the first reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0639] In some embodiments, the first communication device is a terminal device.

[0640] In some embodiments, when the information included in the first measurement data set is obtained based on the uplink reference signal measurement set, the first communications device supports downlink spatial filter prediction based on uplink measurement results.

[0641] In some embodiments, the uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

[0642] In some embodiments, the uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

[0643] In some embodiments, when the first measurement data set only includes link quality information measured based on the uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the first network model in the second order;

[0644] The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

[0645] In some embodiments, when the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the first network model from the second reference signal prediction set;

[0646] The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

[0647] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receive spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

[0648] In some embodiments, if the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode;

[0649] In this second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal. The optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

[0650] In some embodiments, when the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the second reference signal prediction set.

[0651] In some embodiments, the identification information of the K2 downlink receive spatial filters is determined based on spatial relationship information corresponding to uplink reference signal resources predicted by the first network model from the second reference signal prediction set; and / or,

[0652] The identification information of the K2 downlink transmit spatial filters is identification information of downlink transmit spatial filters corresponding to downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

[0653] In some embodiments, the communication device 600 includes: a communication unit 620;

[0654] The communication unit 620 is used to send second indication information;

[0655] In which, the second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters, or the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of the K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters.

[0656] In some embodiments, when the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or,

[0657] When the second indication information is used to indicate the identification information of the downlink transmit spatial filter used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filter used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

[0658] In some embodiments, the downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources.

[0659] In some embodiments, the uplink reference signal resources in the second reference signal prediction set include SRS resources.

[0660] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the communication device 600 includes: a communication unit 620;

[0661] The communication unit 620 is configured to receive second capability information;

[0662] The second capability information includes at least one of the following:

[0663] The maximum number of uplink reference signal measurement sets supported on all pre-configured CCs or all BWPs;

[0664] The maximum number of supported configured uplink reference signal measurement sets;

[0665] The maximum number of uplink reference signal measurement sets supported for simultaneous transmission;

[0666] The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured configuration;

[0667] The maximum number of uplink reference signal measurement sets supported on a CC or a BWP;

[0668] The maximum number of uplink reference signal resources supported in an uplink reference signal measurement set;

[0669] The maximum number of reference signal prediction sets supported on a CC or a BWP;

[0670] The maximum value of K2;

[0671] The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

[0672] In some embodiments, before the first communication device performs spatial filter prediction based on the first network model, the communication device 600 includes: a communication unit 620;

[0673] The communication unit 620 is used to send the second information; wherein,

[0674] The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

[0675] In some embodiments, the first communication device is a network device.

[0676] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0677] It should be understood that the communication device 600 according to the embodiment of the present application may correspond to the first communication device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the communication device 600 are respectively for implementing the corresponding processes of the first communication device in the method 300 shown in Figure 23. For the sake of brevity, they will not be repeated here.

[0678] Figure 27 is a schematic structural diagram of a communication device 700 provided in an embodiment of the present application. The communication device 700 shown in Figure 27 includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0679] In some embodiments, as shown in FIG27 , the communication device 700 may further include a memory 720. The processor 710 may call and execute a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0680] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0681] In some embodiments, as shown in FIG. 27 , the communication device 700 may further include a transceiver 730 , and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, the transceiver 730 may send information or data to other devices, or receive information or data sent by other devices.

[0682] The transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

[0683] In some embodiments, the processor 710 can implement the function of a processing unit in a terminal device, or the processor 710 can implement the function of a processing unit in a network device, or the processor 710 can implement the function of a processing unit in a first communication device. For the sake of brevity, it will not be repeated here.

[0684] In some embodiments, the transceiver 730 can implement the function of a communication unit in a terminal device, or the transceiver 730 can implement the function of a communication unit in a network device, or the transceiver 730 can implement the function of a communication unit in a first communication device. For the sake of brevity, it will not be repeated here.

[0685] In some embodiments, the communication device 700 may specifically be a terminal device of an embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0686] In some embodiments, the communication device 700 may specifically be a network device of an embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0687] In some embodiments, the communication device 700 may specifically be the first communication device of the embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the first communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0688] Figure 28 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 800 shown in Figure 28 includes a processor 810, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0689] In some embodiments, as shown in FIG28 , the apparatus 800 may further include a memory 820 , wherein the processor 810 may call and execute a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0690] The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

[0691] In some embodiments, the processor 810 can implement the function of the processing unit in the first communication device, or the processor 810 can implement the function of the processing unit in the terminal device, or the processor 810 can implement the function of the processing unit in the network device. For the sake of brevity, it will not be repeated here.

[0692] In some embodiments, the apparatus 800 may further include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Optionally, the processor 810 may be located inside or outside the chip.

[0693] In some embodiments, the input interface 830 may implement the function of a communication unit in a first communication device. In some embodiments, the input interface 830 may implement the function of a communication unit in a terminal device. In some embodiments, the input interface 830 may implement the function of a communication unit in a network device.

[0694] In some embodiments, the apparatus 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, specifically, to output information or data to other devices or chips. Optionally, the processor 810 may be located inside or outside the chip.

[0695] In some embodiments, the output interface 840 can implement the function of a communication unit in a first communication device. In some embodiments, the output interface 840 can implement the function of a communication unit in a terminal device. In some embodiments, the output interface 840 can implement the function of a communication unit in a network device.

[0696] In some embodiments, the apparatus can be applied to the first communication device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0697] In some embodiments, the apparatus can be applied to the terminal device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the terminal device in the various methods in the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0698] In some embodiments, the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0699] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, such as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0700] FIG29 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. As shown in FIG29 , the communication system 900 includes a terminal device 910 and a network device 920 .

[0701] Among them, the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0702] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0703] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0704] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0705] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0706] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0707] In some embodiments, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0708] In some embodiments, the computer-readable storage medium can be applied to the first communication device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0709] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0710] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0711] In some embodiments, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0712] In some embodiments, the computer program product can be applied to the first communication device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0713] The embodiment of the present application also provides a computer program.

[0714] In some embodiments, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0715] In some embodiments, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0716] In some embodiments, the computer program can be applied to the first communication device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0717] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0718] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0719] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0720] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of the solution of this embodiment according to actual needs.

[0721] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0722] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0723] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device sends first capability information; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, and / or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

2. The method according to claim 1, characterized in that In a case where the terminal device supports uplink spatial filter prediction based on downlink measurement results, the method further includes: The terminal device inputs a first measurement data set into a first network model and outputs a first prediction data set; Among them, the first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, K1 is a positive integer.

3. The method according to claim 2, characterized in that The downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in the downlink reference signal resource set.

4. The method according to claim 3, characterized in that The downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

5. The method according to any one of claims 2 to 4, characterized in that In a case where the first measurement data set only includes link quality information measured based on a downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order; The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

6. The method according to any one of claims 2 to 5, characterized in that In a case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from a first reference signal prediction set; The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

7. The method according to claim 6, characterized in that In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set configure or activate spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

8. The method according to claim 7, characterized in that The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively receiving spatial filters of corresponding uplink reference signal resources.

9. The method according to claim 6, characterized in that In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

10. The method according to claim 9, characterized in that The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on the first uplink scanning mode; Among them, in the first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to the predicted uplink reference signal resource, different receive spatial filters are used to receive the uplink reference signal, and the optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

11. The method according to claim 6, characterized in that In the case that the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set configure or activate the transmission configuration indication TCI state, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

12. The method according to claim 11, characterized in that The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively transmitting spatial filters of corresponding downlink reference signal resources.

13. The method according to claim 6, characterized in that In a case where the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the first downlink scanning mode; Among them, in the first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

14. The method according to claim 13, characterized in that The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively downlink transmitting spatial filters corresponding to the predicted downlink reference signal resources.

15. The method according to any one of claims 2 to 5, characterized in that In the case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

16. The method according to claim 15, characterized in that The identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or, The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

17. The method according to any one of claims 6 to 16, characterized in that The method further comprises: The terminal device sends first prediction information, wherein the first prediction information includes part or all of the reference signal resource indexes predicted by the first network model from the first reference signal prediction set.

18. The method according to claim 17, characterized in that The method further comprises: The terminal device receives first indication information; The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

19. The method according to claim 18, characterized in that In a case where the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index; or, When the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is a downlink reference signal resource index and an uplink reference signal resource index.

20. The method according to any one of claims 6 to 19, characterized in that The downlink reference signal resources in the first reference signal prediction set include channel state information reference signal CSI-RS resources and / or synchronization signal block SSB resources; and / or, The uplink reference signal resources in the first reference signal prediction set include sounding reference signal SRS resources.

21. The method according to any one of claims 6 to 20, characterized in that Before the terminal device performs spatial filter prediction based on the first network model, the method further includes: The terminal device receives first information; wherein, The first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set in a plurality of pre-configured downlink reference signal measurement sets, the first reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

22. The method according to any one of claims 1 to 21, characterized in that When the first capability information indicates that the terminal device supports uplink spatial filter prediction based on downlink measurement results, the first capability information further includes at least one of the following: The maximum number of downlink reference signal measurement sets supported on all pre-configured carrier components CC or all bandwidth parts BWP; The maximum number of configured downlink reference signal measurement sets supported; The maximum number of downlink reference signal measurement sets supported for simultaneous measurement; The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured manner; Maximum number of downlink reference signal measurement sets supported on a CC or a BWP; The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set; The maximum number of reference signal prediction sets supported on a CC or a BWP; The maximum value of K1; The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

23. The method of claim 1, wherein: In a case where the terminal device supports downlink spatial filter prediction based on uplink measurement results, the method further includes: The terminal device receives second indication information; The second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of K2 downlink receiving spatial filters, or the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of K2 downlink receiving spatial filters; The identification information of the K2 downlink transmit spatial filters and / or the identification information of the K2 downlink receive spatial filters belong to a second predicted data set output by a second network model deployed on the network side after inputting a second measured data set; Among them, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: the predicted identification information of the K2 downlink transmit spatial filters, the predicted identification information of the K2 downlink transmit spatial filters and the identification information of the K2 downlink receive spatial filters, K2 is a positive integer.

24. The method of claim 23, wherein: In a case where the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or, When the second indication information is used to indicate the identification information of the downlink transmit spatial filters used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filters used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

25. The method according to claim 23 or 24, characterized in that The uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

26. The method of claim 25, wherein: The uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

27. The method according to any one of claims 23 to 26, characterized in that In a case where the second measurement data set includes only link quality information measured based on an uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the second network model in a second order; The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

28. The method according to any one of claims 23 to 27, characterized in that In a case where the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the second network model from a second reference signal prediction set; The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

29. The method of claim 28, wherein: If the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

30. The method of claim 28, wherein: If the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode; Among them, in the second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

31. The method according to any one of claims 23 to 27, characterized in that In the case where the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the second network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the second network model from the second reference signal prediction set.

32. The method of claim 31, wherein: The identification information of the K2 downlink receiving spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the second network model from the second reference signal prediction set; and / or, The identification information of the K2 downlink transmit spatial filters is respectively identification information of the downlink transmit spatial filters corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

33. The method according to any one of claims 28 to 32, characterized in that The downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources.

34. The method according to claim 31 or 32, characterized in that The uplink reference signal resources in the second reference signal prediction set include SRS resources.

35. The method according to any one of claims 28 to 34, characterized in that Before the terminal device receives the second indication information, the method further includes: The terminal device receives second information; wherein, The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

36. The method of any one of claims 23 to 35, It is characterized in that The first capability information includes at least one of the following: Maximum number of uplink reference signal measurement sets supported on all CCs or all BWPs pre-configured; The maximum number of supported configured uplink reference signal measurement sets; The maximum number of uplink reference signal measurement sets supported for simultaneous transmission; The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured manner; Maximum number of uplink reference signal measurement sets supported on a CC or a BWP; The maximum number of uplink reference signal resources in the supported uplink reference signal measurement set; The maximum number of reference signal prediction sets supported on a CC or a BWP; The maximum value of K2; The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

37. A method of wireless communication, characterized in that: include: The network device receives first capability information; wherein, the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, and / or, the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

38. The method of claim 37, wherein: In a case where the terminal device supports uplink spatial filter prediction based on downlink measurement results, the method further includes: The network device receives first prediction information, wherein the first prediction information includes at least one of the following: partial or all reference signal resource indexes associated with identification information of K1 uplink transmit spatial filters, partial or all reference signal resource indexes associated with identification information of K1 uplink receive spatial filters; The identification information of the K1 uplink transmit spatial filters and / or the identification information of the K1 uplink receive spatial filters belong to a first predicted data set output by a first network model deployed on the terminal side after a first measured data set is input; Among them, the first measurement data set includes at least one of the following: link quality information obtained based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information obtained based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: the predicted identification information of the K1 uplink transmit spatial filters, the predicted identification information of the K1 uplink transmit spatial filters and the identification information of the K1 uplink receive spatial filters, K1 is a positive integer.

39. The method of claim 38, wherein: The downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in the downlink reference signal resource set.

40. The method of claim 39, wherein: The downlink reference signal resource set is configured by the network device, or the downlink reference signal resource set is agreed upon by a protocol.

41. The method according to any one of claims 38 to 40, characterized in that In a case where the first measurement data set only includes link quality information measured based on a downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order; The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

42. The method according to any one of claims 38 to 41, characterized in that In a case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from a first reference signal prediction set; The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

43. The method of claim 42, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set configure or activate spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

44. The method of claim 43, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively receiving spatial filters of corresponding uplink reference signal resources.

45. The method of claim 42, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

46. ​​The method of claim 45, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on the first uplink scanning mode; Among them, in the first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to the predicted uplink reference signal resource, different receive spatial filters are used to receive the uplink reference signal, and the optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

47. The method of claim 42, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set configure or activate the transmission configuration indication TCI state, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

48. The method of claim 47, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively transmitting spatial filters of corresponding downlink reference signal resources.

49. The method of claim 42, wherein: In a case where the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the first downlink scanning mode; Among them, in the first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

50. The method of claim 49, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively downlink transmitting spatial filters corresponding to the predicted downlink reference signal resources.

51. The method according to any one of claims 38 to 41, characterized in that In the case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

52. The method of claim 51, wherein: The identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or, The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

53. The method according to any one of claims 38 to 52, characterized in that The method further comprises: The network device sends first indication information; The first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters, or the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters.

54. The method of claim 53, wherein: The first indication information is used to indicate the uplink transmission spatial filter used in the identification information of the K1 uplink transmission spatial filters. In the case of identification information of a filter, the first indication information is at least one TCI state indication, or the first indication information is an uplink reference signal resource index; or, When the first indication information is used to indicate the identification information of the uplink transmit spatial filter used in the identification information of the K1 uplink transmit spatial filters and the identification information of the uplink receive spatial filter used in the identification information of the K1 uplink receive spatial filters, the first indication information is a downlink reference signal resource index and an uplink reference signal resource index.

55. The method according to any one of claims 42 to 52, characterized in that The downlink reference signal resources in the first reference signal prediction set include channel state information reference signal CSI-RS resources and / or synchronization signal block SSB resources; and / or, The uplink reference signal resources in the first reference signal prediction set include sounding reference signal SRS resources.

56. The method according to any one of claims 42 to 52, characterized in that Before the network device receives the first prediction information, the method further includes: The network device sends first information; wherein, The first information is used to configure at least one of the following: the downlink reference signal measurement set, the first reference signal prediction set; or, the first information is used to activate at least one of the following: the downlink reference signal measurement set in a plurality of pre-configured downlink reference signal measurement sets, the first reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

57. The method according to any one of claims 38 to 56, characterized in that The first capability information also includes at least one of the following: The maximum number of downlink reference signal measurement sets supported on all pre-configured carrier components CC or all bandwidth parts BWP; The maximum number of configured downlink reference signal measurement sets supported; The maximum number of downlink reference signal measurement sets supported for simultaneous measurement; The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured manner; Maximum number of downlink reference signal measurement sets supported on a CC or a BWP; The maximum number of downlink reference signal resources in the supported downlink reference signal measurement set; The maximum number of reference signal prediction sets supported on a CC or a BWP; The maximum value of K1; The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of downlink reference signal measurement sets.

58. The method of claim 37, wherein: In a case where the terminal device supports downlink spatial filter prediction based on uplink measurement results, the method further includes: The network device inputs a second measurement data set into a second network model and outputs a second prediction data set; Among them, the second measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the second prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, K2 is a positive integer.

59. The method of claim 58, wherein: The uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

60. The method of claim 59, wherein: The uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

61. The method according to any one of claims 58 to 60, characterized in that In a case where the second measurement data set includes only link quality information measured based on an uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the second network model in a second order; The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

62. The method according to any one of claims 58 to 61, characterized in that In a case where the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the second network model from a second reference signal prediction set; The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

63. The method of claim 62, wherein: If the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

64. The method of claim 63, wherein: If the downlink reference signal resource in the second reference signal prediction set is not configured or the TCI state is activated, or if the second reference The downlink reference signal resources in the reference signal prediction set have not been measured in advance, and the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filters determined based on the second downlink scanning mode; Among them, in the second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

65. The method according to any one of claims 58 to 61, characterized in that In the case where the second prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the second network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the second network model from the second reference signal prediction set.

66. The method of claim 65, wherein: The identification information of the K2 downlink receiving spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the second network model from the second reference signal prediction set; and / or, The identification information of the K2 downlink transmit spatial filters is respectively identification information of the downlink transmit spatial filters corresponding to the downlink reference signal resources predicted by the second network model from the second reference signal prediction set.

67. The method according to any one of claims 62 to 66, characterized in that The method further comprises: The network device sends second indication information; wherein the second indication information is used to indicate the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters, or the second indication information is used to indicate the identification information of the downlink transmitting spatial filter used in the identification information of the K2 downlink transmitting spatial filters and the identification information of the downlink receiving spatial filter used in the identification information of the K2 downlink receiving spatial filters.

68. The method of claim 67, wherein: In a case where the second indication information is used to indicate the identification information of the downlink reception spatial filter used in the identification information of the K2 downlink reception spatial filters, the second indication information is at least one TCI state indication, or the second indication information is a downlink reference signal resource index; or, When the second indication information is used to indicate the identification information of the downlink transmit spatial filters used in the identification information of the K2 downlink transmit spatial filters and the identification information of the downlink receive spatial filters used in the identification information of the K2 downlink receive spatial filters, the second indication information is a downlink reference signal resource index and an uplink reference signal resource index.

69. The method according to any one of claims 62 to 68, characterized in that The downlink reference signal resources in the second reference signal prediction set include CSI-RS resources and / or SSB resources.

70. The method of claim 65 or 66, wherein: The uplink reference signal resources in the second reference signal prediction set include SRS resources.

71. The method according to any one of claims 62 to 70, characterized in that Before the network device performs spatial filter prediction based on the second network model, the method further includes: The network device sends second information; wherein, The second information is used to configure at least one of the following: the uplink reference signal measurement set, the second reference signal prediction set; or, the second information is used to activate at least one of the following: the uplink reference signal measurement set in a plurality of pre-configured uplink reference signal measurement sets, the second reference signal prediction set in a plurality of pre-configured reference signal prediction sets.

72. The method of any one of claims 58 to 71, It is characterized in that The first capability information further includes at least one of the following: Maximum number of uplink reference signal measurement sets supported on all CCs or all BWPs pre-configured; The maximum number of supported configured uplink reference signal measurement sets; The maximum number of uplink reference signal measurement sets supported for simultaneous transmission; The maximum number of reference signal prediction sets supported across all CCs or all BWPs in a preconfigured manner; Maximum number of uplink reference signal measurement sets supported on a CC or a BWP; The maximum number of uplink reference signal resources in the supported uplink reference signal measurement set; The maximum number of reference signal prediction sets supported on a CC or a BWP; The maximum value of K2; The number of reference signal prediction sets supported on one CC or one BWP is the same as the number of uplink reference signal measurement sets.

73. A method of wireless communication, characterized in that: include: The first communication device inputs a first measurement data set into a first network model and outputs a first prediction data set; The first measurement data set includes at least one of the following: link quality information obtained by measuring based on the downlink reference signal measurement set, a downlink reference signal resource index corresponding to the link quality information obtained by measuring based on the downlink reference signal measurement set; and the first prediction data The set includes one of the following: the predicted identification information of K1 uplink transmit spatial filters, the predicted identification information of K1 uplink transmit spatial filters and the identification information of K1 uplink receive spatial filters, where K1 is a positive integer; or, The first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

74. The method of claim 73, wherein: In a case where the information included in the first measurement data set is obtained based on the downlink reference signal measurement set, the first communications device supports uplink spatial filter prediction based on downlink measurement results.

75. The method of claim 74, wherein: The downlink reference signal resources in the downlink reference signal measurement set are part or all of the downlink reference signal resources in the downlink reference signal resource set.

76. The method of claim 75, wherein: The downlink reference signal resource set is configured by a network device, or the downlink reference signal resource set is agreed upon by a protocol.

77. The method according to any one of claims 74 to 76, characterized in that In a case where the first measurement data set only includes link quality information measured based on a downlink reference signal measurement set, the link quality information measured based on the downlink reference signal measurement set is input into the first network model in a first order; The first order is associated with a downlink reference signal resource index in the downlink reference signal measurement set.

78. The method according to any one of claims 74 to 77, characterized in that In a case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on reference signal resources predicted by the first network model from a first reference signal prediction set; The reference signal resources in the first reference signal prediction set include at least one of the following: uplink reference signal resources and downlink reference signal resources.

79. The method of claim 78, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set configure or activate spatial relationship information, the identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

80. The method of claim 79, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively receiving spatial filters of corresponding uplink reference signal resources.

81. The method of claim 78, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least uplink reference signal resources, if the uplink reference signal resources in the first reference signal prediction set are not configured or activated with spatial relationship information, the identification information of the K1 uplink transmit spatial filters are respectively the transmit spatial filters corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set.

82. The method of claim 81, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are determined based on the first uplink scanning mode; Among them, in the first uplink scanning mode, an uplink reference signal is sent using an uplink transmit spatial filter corresponding to the predicted uplink reference signal resource, different receive spatial filters are used to receive the uplink reference signal, and the optimal receive spatial filter is determined based on the signal quality of the received uplink reference signal.

83. The method of claim 78, wherein: In the case that the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set configure or activate the transmission configuration indication TCI state, or if the downlink reference signal resources in the first reference signal prediction set have been measured in advance, the identification information of the K1 uplink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

84. The method of claim 83, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively transmitting spatial filters of corresponding downlink reference signal resources.

85. The method of claim 78, wherein: In a case where the reference signal resources in the first reference signal prediction set include at least downlink reference signal resources, if the downlink reference signal resources in the first reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the first reference signal prediction set have not been measured in advance, the identification information of the K1 uplink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the first downlink scanning mode; Among them, in the first downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal receive spatial filter is determined based on the signal quality of the received downlink reference signal.

86. The method of claim 85, wherein: The uplink receiving spatial filters corresponding to the K1 uplink transmitting spatial filters are respectively downlink transmitting spatial filters corresponding to the predicted downlink reference signal resources.

87. The method of any one of claims 74 to 77, wherein: In the case where the first prediction data set includes identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, the identification information of the K1 uplink transmit spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the first reference signal prediction set, and the identification information of the K1 uplink receive spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

88. The method of claim 87, wherein: The identification information of the K1 uplink transmit spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the first reference signal prediction set; and / or, The identification information of the K1 uplink receiving spatial filters is respectively identification information of downlink transmitting spatial filters corresponding to the downlink reference signal resources predicted by the first network model from the first reference signal prediction set.

89. The method according to any one of claims 73 to 88, characterized in that The first communication device is a terminal device.

90. The method of claim 73, wherein: In a case where the information included in the first measurement data set is obtained based on the uplink reference signal measurement set, the first communications device supports downlink spatial filter prediction based on uplink measurement results.

91. The method of claim 90, wherein: The uplink reference signal resources in the uplink reference signal measurement set are part or all of the uplink reference signal resources in the uplink reference signal resource set.

92. The method of claim 91, wherein: The uplink reference signal resource set is configured by a network device, or the uplink reference signal resource set is agreed upon by a protocol.

93. The method according to any one of claims 90 to 92, characterized in that In a case where the first measurement data set only includes link quality information measured based on an uplink reference signal measurement set, the link quality information measured based on the uplink reference signal measurement set is input into the first network model in a second order; The second order is associated with an uplink reference signal resource index in the uplink reference signal measurement set.

94. The method according to any one of claims 90 to 93, characterized in that In a case where the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on reference signal resources predicted by the first network model from a second reference signal prediction set; The reference signal resources in the second reference signal prediction set include downlink reference signal resources.

95. The method of claim 94, wherein: If the downlink reference signal resources in the second reference signal prediction set are configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have been measured in advance, the identification information of the K2 downlink transmit spatial filters is the receiving spatial filter corresponding to the downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

96. The method of claim 94, wherein: If the downlink reference signal resources in the second reference signal prediction set are not configured or the TCI state is activated, or if the downlink reference signal resources in the second reference signal prediction set have not been measured in advance, the identification information of the K2 downlink transmit spatial filters is the identification information of the downlink receive spatial filter determined based on the second downlink scanning mode; Among them, in the second downlink scanning mode, a downlink reference signal is sent using a downlink transmit spatial filter corresponding to a predicted downlink reference signal resource, and different receive spatial filters are used to receive the downlink reference signal, and an optimal downlink receive spatial filter is determined based on the signal quality of the received downlink reference signal.

97. The method according to any one of claims 90 to 93, characterized in that In the case where the first prediction data set includes identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, the identification information of the K2 downlink transmit spatial filters is determined based on the downlink reference signal resources predicted by the first network model from the second reference signal prediction set, and the identification information of the K2 downlink receive spatial filters is determined based on the uplink reference signal resources predicted by the first network model from the second reference signal prediction set.

98. The method of claim 97, wherein: The identification information of the K2 downlink receiving spatial filters is determined based on the spatial relationship information corresponding to the uplink reference signal resources predicted by the first network model from the second reference signal prediction set; and / or, The identification information of the K2 downlink transmit spatial filters is respectively the identification information of the downlink transmit spatial filters corresponding to the downlink reference signal resources predicted by the first network model from the second reference signal prediction set.

99. The method according to any one of claims 90 to 98, characterized in that The first communication device is a network device.

100. A terminal device, characterized in that: include: A communication unit, used to send first capability information; wherein the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

101. A network device, characterized in that: include: A communication unit, used to receive first capability information; wherein, the first capability information is used to indicate whether the terminal device supports uplink spatial filter prediction based on downlink measurement results, or the first capability information is used to indicate whether the terminal device supports downlink spatial filter prediction based on uplink measurement results.

102. A communication device, characterized in that: The communication device is a first communication device, and the communication device includes: A processing unit, configured to input a first measurement data set into a first network model and output a first prediction data set; The first measurement data set includes at least one of the following: link quality information measured based on the downlink reference signal measurement set, and a downlink reference signal resource index corresponding to the link quality information measured based on the downlink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K1 predicted uplink transmit spatial filters, identification information of K1 predicted uplink transmit spatial filters and identification information of K1 uplink receive spatial filters, where K1 is a positive integer; or, The first measurement data set includes at least one of the following: link quality information obtained based on the uplink reference signal measurement set, and an uplink reference signal resource index corresponding to the link quality information obtained based on the uplink reference signal measurement set; and the first prediction data set includes one of the following: identification information of K2 predicted downlink transmit spatial filters, identification information of K2 predicted downlink transmit spatial filters and identification information of K2 downlink receive spatial filters, where K2 is a positive integer.

103. A terminal device, characterized in that: include: The terminal device includes a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the terminal device executes the method according to any one of claims 1 to 36.

104. A network device, characterized in that: include: The network device includes a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the network device executes the method as described in any one of claims 37 to 72.

105. A communication device, characterized in that: include: The communication device is a first communication device, which includes a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method as described in any one of claims 73 to 99.

106. A chip, characterized in that: include: A processor, used to call and run a computer program from a memory so that a device equipped with the chip executes a method as described in any one of claims 1 to 36, or a device equipped with the chip executes a method as described in any one of claims 37 to 72, or a device equipped with the chip executes a method as described in any one of claims 73 to 99.

107. A computer-readable storage medium, characterized in that: Used to store a computer program, when the computer program is executed, the method as claimed in any one of claims 1 to 36 is implemented, or the method as claimed in any one of claims 37 to 72 is implemented, or the method as claimed in any one of claims 73 to 99 is implemented.

108. A computer program product, characterized in that Comprising computer program instructions, when the computer program instructions are executed, the method according to any one of claims 1 to 36 is implemented, or the method according to any one of claims 37 to 72 is implemented, or the method according to any one of claims 73 to 99 is implemented.

109. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 36 is implemented, or the method according to any one of claims 37 to 72 is implemented, or the method according to any one of claims 73 to 99 is implemented.

Images