Transmission method, apparatus and storage medium configured for channel state information report

Abstract

This disclosure provides a method, apparatus, and storage medium for transmitting channel state information report configurations, relating to the field of communication technology. It aims to reduce signaling overhead or signaling time delay during the transmission of channel state information reports or channel state information report configurations. The method includes: acquiring channel state information (CSI) report configurations, where the CSI report configurations include parameter information for L CSI reports, where the L CSI reports correspond to C reference signal resource sets, and L and C are both positive integers greater than 1; and transmitting the CSI report configurations.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a transmission method, apparatus and storage medium for configuring channel state information reports. Background Technology

[0002] Wireless communication systems are widely used in people's daily lives and production. For example, they are used for video transmission, voice transmission, positioning, machine-to-machine communication in industry, device-to-device communication, and communication between vehicles and other devices in the Internet of Vehicles (IoV). Channel state information (CSI) is crucial for improving the performance of wireless communication systems. The terminal sends a CSI report to the network-side device. Upon receiving the CSI report, the network-side device acquires the CSI and uses it for scheduling and data transmission.

[0003] Due to factors such as user movement, communication scenario switching, cell handover, and environmental obstructions, the channel environment changes over time, and therefore, channel state information (CSI) may also change accordingly. For different channel environments and different transmission requirements, some require reporting different forms of CSI in different time slots as needed, while others require multiple CSI reports from different time slots to work together to complete a single report. To address these issues, existing technologies require a new higher-layer signaling to update the CSI report configuration parameters. This leads to significant signaling overhead and / or substantial signaling delays. Summary of the Invention

[0004] This disclosure provides a method, apparatus, and storage medium for transmitting channel state information report configuration, which reduces signaling overhead and / or reduces signaling time delay during the transmission of channel state information reports or channel state information configuration.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0006] In a first aspect, this disclosure provides a method for transmitting channel state information report configuration, the method comprising:

[0007] The Channel State Information (CSI) report configuration is obtained. The CSI report configuration includes parameter information for L CSI reports. The L CSI reports correspond to C sets of reference signal resources, where L and C are both positive integers greater than 1.

[0008] Configure CSI report sending.

[0009] Secondly, this disclosure provides a method for transmitting channel state information report configuration, the method comprising:

[0010] The CSI report configuration includes parameter information for L CSI reports. The L CSI reports correspond to C sets of reference signal resources, where L and C are both positive integers greater than 1.

[0011] Thirdly, this disclosure provides a communication device, including:

[0012] The acquisition module is used to acquire the Channel State Information (CSI) report configuration. The CSI report configuration includes parameter information of L CSI reports. The L CSI reports correspond to C reference signal resource sets, where L and C are both positive integers greater than 1.

[0013] The sending module is used to send CSI report configurations.

[0014] Fourthly, this disclosure provides a communication device, comprising:

[0015] The receiving module is used to receive CSI report configurations, which include parameter information for L CSI reports. The L CSI reports correspond to C sets of reference signal resources, where L and C are both positive integers greater than 1.

[0016] Fifthly, a communication device is provided, comprising: a processor and a memory; the memory storing processor-executable instructions; when the processor is configured to execute the instructions, causing the communication device to implement any of the methods provided in the first or second aspect above.

[0017] A sixth aspect provides a computer-readable storage medium that stores computer instructions that, when executed on a computer, cause the computer to perform any of the methods provided in the first or second aspect.

[0018] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, causes the computer to perform any of the methods provided in the first or second aspect.

[0019] Based on the technical solution provided in this disclosure, L CSI reports can be configured simultaneously, and the L CSI reports are correlated. Furthermore, the configuration of some parameters of at least one of the L CSI reports can be modified through MAC CE and / or physical layer signaling, improving the flexibility of channel state information reporting, eliminating the need to reconfigure CSI reports through higher-layer signaling, and reducing signaling latency. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solutions of this disclosure and constitute a part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0021] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure;

[0022] Figure 2 A flowchart illustrating a transmission method for configuring channel state information reports, provided in an embodiment of this disclosure;

[0023] Figure 3 A flowchart of another transmission method for configuring channel state information reporting provided in an embodiment of this disclosure;

[0024] Figure 4 This is a schematic diagram of the composition of a communication device provided in an embodiment of the present disclosure;

[0025] Figure 5 This is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure. Detailed Implementation

[0026] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0027] In this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. The terms "first," "second," etc., do not limit the quantity or order of execution, and "first," "second," etc., do not necessarily imply differences.

[0028] It should be noted that in this disclosure, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0029] The technical solutions provided by the embodiments of this disclosure can be applied to various mobile communication networks, such as New Radio (NR) mobile communication networks using 5th generation mobile networks (5G), future mobile communication networks (including but not limited to various 6th generation mobile communication technologies, 6G), or multiple communication convergence systems, etc. The embodiments of this disclosure do not limit this.

[0030] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G, and future mobile communication networks) in the embodiments of this disclosure may include network-side devices (e.g., including but not limited to base stations) and receiving-side devices (e.g., including but not limited to terminals). It should be understood that, in this example, in the downlink, the first communication node (also referred to as the first communication node device) can be a base station-side device, and the second communication node (also referred to as the second communication node device) can be a terminal-side device. Of course, in the uplink, the first communication node can also be a terminal-side device, and the second communication node can also be a base station-side device. In device-to-device communication between the two communication nodes, both the first and second communication nodes can be base stations or terminals. The first and second communication nodes can be referred to as the first node and the second node, respectively.

[0031] For example, taking the network-side device as the base station and the receiving-side device as the terminal, Figure 1 A schematic diagram of the architecture of a communication system provided by an embodiment of this disclosure is shown. For example... Figure 1 As shown, the communication system 10 includes multiple base stations (e.g., base station 21 and base station 22) and multiple terminals (e.g., terminal 31, terminal 32, terminal 33, and terminal 34). The multiple base stations and multiple terminals can be communicatively connected. A single base station can provide network services to terminals in one cell, or it can simultaneously provide network services to terminals in multiple cells.

[0032] In some embodiments, the base station may be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system. The base station may include various macro base stations, micro base stations, femtocell base stations, wireless remote extensions, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network-side devices such as primary cells and secondary cells.

[0033] In some embodiments, the terminal can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as on ships); and it can also be deployed in the air (e.g., on airplanes, balloons, and satellites). The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments disclosed herein do not limit the application scenarios. The term "terminal" can sometimes also refer to a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., but this disclosure does not limit the terminology used in this embodiment.

[0034] In some embodiments, higher-layer signaling includes, but is not limited to, radio resource control (RRC), media access control element (MAC CE), and other signaling outside of physical layer signaling, such as LTE Positioning Protocol (LPP) higher-layer signaling, NR Positioning Protocol A (NRPPa) higher-layer signaling, and LTE Positioning Protocol A (LPPa) higher-layer signaling, where LPP is also applied to the NR Positioning Protocol. Physical layer signaling can also be transmitted between the base station and the terminal. For example, physical layer signaling can be transmitted between the base station and the terminal on the physical downlink control channel (PDCCH) and on the physical uplink control channel (PUCCH).

[0035] In some embodiments, the parameter indicator can also be called an index or an identifier (ID), and these terms are equivalent. For example, a resource identifier in a wireless system can also be called a resource indicator or a resource index. The resource index of a wireless system includes, but is not limited to, one of the following: reference signal resources, reference signal resource groups, reference signal resource configurations, Channel State Information (CSI) reports, CSI report sets, terminals, base stations, panels, neural networks, sub-neural networks, neural network layers, precoding matrices, beams, transmission methods, transmit methods, receive methods, modules, models, functional modules, functions, etc. The base station can indicate the identifier of one or a group of resources to the terminal through various higher-layer signaling or physical-layer signaling. The terminal can also feed back the identifier of one or a group of resources to the base station through higher-layer signaling and / or physical-layer signaling.

[0036] In some embodiments, a time instance refers to a time period, such as a time slot. A time slot can be a slot or a mini-slot. A time slot or mini-slot includes at least one symbol. A symbol refers to a time unit within a subframe, frame, or time slot, such as an orthogonal frequency division multiplexing (OFDM) symbol, a single-carrier frequency division multiple access (SC-FDMA) symbol, or an orthogonal frequency division multiple access (OFDMA) symbol. In some embodiments or examples, time slots are used as examples; actual examples can be used instead.

[0037] In some embodiments, transmission includes sending or receiving. For example, sending data or signals, or receiving data or signals.

[0038] In some embodiments, to calculate channel state information or perform channel estimation, mobility management, positioning, etc., the base station or terminal needs to transmit a reference signal (RS). This reference signal includes, but is not limited to, a channel-state information reference signal (CSI-RS), which includes zero-power CSI-RS (ZP CSI-RS), non-zero-power CSI-RS (NZP CSI-RS), channel-state information-interference measurement (CSI-IM), sounding reference signal (SRS), synchronization signals block (SSB), physical broadcast channel (PBCH), and synchronization signals block / physical broadcast channel (SSB / PBCH). NZP CSI-RS can be used to measure the channel or interference; CSI-RS can be used for tracking and can be called a tracking reference signal (TRS); CSI-IM is generally used to measure interference; and SRS is used to measure the uplink channel. Additionally, the time-frequency resources used for transmitting reference signals comprise a set of resource elements (REs) called reference signal resources, such as CSI-RS resource, SRS resource, CSI-IM resource, and SSB resource. In this paper, SSB includes synchronization signal blocks and / or physical broadcast channels.

[0039] In some embodiments, to save signaling overhead, multiple reference signal resources may be divided into multiple sets (e.g., CSI-RS resource set, CSI-IM resource set, SRS resource set). Each reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets may all come from the same reference signal resource setting (e.g., CSI-RS resource setting, SRS resource setting, where the CSI-RS resource setting may be merged with the CSI-IM resource setting and both are called CSI-RS resource setting) to configure parameter information.

[0040] In some embodiments, the base station configures measurement resource information, which is used to acquire various measurement parameters such as channel state information. The measurement resource information includes C... N Channel measurement resource (CMR) information and / or C M Information on interference measurement resources (IMR), C N and C M The value is a positive integer. The base station configures measurement resource information in a report config or reporting setting. In some examples, a channel measurement resource information setting includes at least one channel reference signal resource setting, such as at least one CSI-RS resource setting or at least one SRS resource setting; an interference measurement resource information setting includes at least one interference reference signal resource setting, such as at least one CSI-IM resource setting. In some examples, a channel measurement resource information setting includes at least one set of channel reference signal resources, such as at least one CSI-RS resource set or at least one SRS resource set; an interference measurement resource information setting includes at least one set of interference reference signal resources, such as at least one CSI-IM resource set. In some examples, a channel measurement resource information setting includes at least one channel reference signal resource, such as at least one CSI-RS resource or at least one SRS resource; an interference measurement resource information setting includes at least one interference reference signal resource, such as at least one CSI-IM resource.

[0041] In some embodiments, a beam includes a transmit beam, a receive beam, a receive beam and a transmit beam pair, and a transmit beam and a receive beam pair. In some embodiments, a beam can be understood as a resource, such as a reference signal resource, a transmit-end spatial filter, a receive-end spatial filter, a spatial filter, spatial receive parameters, transmit-end precoding, receive-end precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc. A beam index can be replaced with a resource index (e.g., a reference signal resource index) because a beam can be transmittedly bound to resources in at least one of the time domain, frequency domain, and code domain. A beam can also be a transmission (transmit / receive) mode, which may include spatial division multiplexing, frequency / time domain diversity, beamforming, etc. Furthermore, the base station can configure quasi-co-location (QCL) for two reference signals and inform the user terminal to describe channel characteristics. The parameters involved in this quasi-co-location include at least: Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial Rx parameter (or spatial parameter). The spatial parameter may include spatial reception parameters, angle information, spatial correlation parameters of the received beam, average delay, and correlation parameters of the time-frequency channel response (including phase information). Angle information may include at least one of the following: angle of arrival (AOA) and angle of departure (AOD). When the angle information includes azimuth and elevation angles, the angle of arrival includes the zenith angle of arrival (ZOA) and the azimuth angle of arrival.

[0042] Departure (AOD), the angle of departure includes the zenith angle of departure.

[0043] Spatial filtering can be at least one of the following: Discrete Fourier Transform (DFT) vector, precoded vector, DFT matrix, precoded matrix, or a vector formed by a linear combination of multiple DFT vectors, or a vector formed by a linear combination of multiple precoded vectors. In some embodiments, vector and vector array are interchangeable concepts. In some embodiments, a beam pair includes a combination of a transmit beam and a receive beam.

[0044] In some embodiments, the beam direction or beam angle may correspond to at least one of the following: Angle of Arrival (AOA), Angle of Departure (AOD), a vector or vector index constructed from at least one of the angles AOA and AOD, a discrete Fourier transform vector, a codeword in a codebook, a transmit beam index, a receive beam index, a transmit beam group index, and a receive beam group index. Wherein, when the angle information includes azimuth and elevation angles, the angle of arrival includes the zenith angle of arrival and the azimuth angle of arrival, and the angle of departure includes the zenith angle of departure and the azimuth angle of departure.

[0045] In some embodiments, a communication node may select an information processing method to process the obtained information (such as channel information, channel matrix information, time-domain channel information, frequency-domain channel information, angle information, and position information) to obtain an information processing result (hereinafter referred to as the processing result). The processing result includes one or more of the aforementioned channel state information, or one or more of the beam parameter information, or angle information, position information (e.g., coordinates), and position parameter information. For example, location parameter information includes, but is not limited to, at least one of the following: reference signal time difference (RSTD), relative time of arrival (RTOA), angle of arrival (AoA), angle of departure (AOD), receive-transmit time difference (Rx-Tx time difference), transmit-receive time difference (Tx-Rx time difference), reference signal received power, and multipath information. The receive-transmit time difference includes the base station-side receive-transmit time difference (gNB Rx-Tx time difference) and the terminal-side receive-transmit time difference (UE Rx-Tx time difference). When the angle information includes azimuth and elevation angles, the angle of arrival includes the zenith angle of arrival (ZOA) and the azimuth angle of departure (AOD), and the angle of departure includes the zenith angle of departure (ZOD) and the azimuth angle of departure (AOD). multipath departure (AOA), increasing the number of paths, increasing the relative delay of paths, increasing the power of multipaths, increasing the time-domain response of multipaths, and increasing the real and imaginary parts of the time-domain response of multipaths.

[0046] In some embodiments, the communication node selects an information processing method to process the obtained information (such as channel information, channel matrix information, time-domain channel information, frequency-domain channel information, angle information, and position information) to obtain an information processing result. The processing result includes one or more of the channel state information or one or more of the beam parameter information.

[0047] In some embodiments, the information processing method can be a traditional information processing method or various advanced information processing methods. Advanced information processing methods include, but are not limited to, information processing methods based on Artificial Intelligence (AI). AI can include the following types: machine learning (ML), deep learning, reinforcement learning, transfer learning, deep reinforcement learning, and meta-learning, etc. In some examples, the information processing method is implemented through an artificial intelligence network (or neural network, or neural network model, or model).

[0048] In some embodiments, Artificial Intelligence (AI) includes self-learning devices, components, software, modules, models, functional modules, and functional functions such as Machine Learning (ML), Deep Learning, Reinforcement Learning, Transfer Learning, Deep Reinforcement Learning, and Meta-learning. In some embodiments, AI is implemented through an AI network (or neural network), which includes multiple layers, each layer including at least one node. In one example, the neural network includes an input layer, an output layer, and at least one hidden layer. Each layer of the neural network includes, but is not limited to, using at least one of the following: fully connected layers, dense layers, convolutional layers, transposed convolutional layers, directly connected layers, activation functions, normalization layers, and pooling layers. In some embodiments, each layer of the neural network may include a sub-neural network, such as a residual network block (or ResNet block), a dense network (DenseNet Block), or a recurrent neural network (RNN). AI networks can be implemented through models, which may include, but are not limited to, models based on neural networks. A neural network model includes a neural network model structure and / or neural network model parameters, where the neural network model structure can be simply referred to as the model structure, and the neural network model parameters can be simply referred to as network parameters or model parameters. Based on the model structure, the number of layers, the size of each layer, the activation function, the connections, the convolutional kernel and stride, and the convolution type (e.g., 1D convolution, 2D convolution, 3D convolution, hollow convolution, transposed convolution, separable convolution, grouped convolution, expanded convolution, etc.) of the neural network can be determined. The network parameters are the weights and / or biases of each layer in the neural network model and their values. Furthermore, a single model structure can correspond to multiple sets of different neural network model parameter values ​​to adapt to different scenarios. The neural network model parameters can then be obtained through online or offline training methods, such as training the neural network model by inputting at least one sample.

[0049] For example, a sample includes N features and M labels, where N is a positive integer and M is an integer greater than or equal to 0. Furthermore, multiple samples can constitute a dataset. In one example, a sample includes one feature and one label, such as samples in supervised learning. In another example, a sample has only one feature and no label, such as samples in unsupervised learning. In yet another example, a sample has multiple features and one label, such as samples in a supervised learning network model with multiple inputs and single outputs. In yet another example, a sample includes one feature and multiple labels, such as samples in a supervised learning network model with single inputs and multiple outputs. In some embodiments, the features of a sample can be an array, and the labels can also be an array. The array can be a vector, a matrix, or a tensor larger than two dimensions. Each element in the array can be a discrete value or a real value, such as a real value from 0 to 1, or a real value from -0.5 to 0.5.

[0050] In one example, the elements in the array corresponding to the labels or features need to be normalized to facilitate faster convergence of the network model. Normalization refers to standardizing the values ​​of elements in an array to a value within a range greater than or equal to 'a' and less than or equal to 'b'. For example, a = -0.5, b = 0.5, or a = 0, b = 1. One example is to divide the elements of the array by the largest absolute value among them. Another example is to divide the elements of the array by the variance of those elements. In one example, the elements of the array can be divided by a fixed value (e.g., the maximum value of all elements across all samples). Yet another example is to divide the elements of the array by a statistical value (e.g., the statistical variance of all elements across all samples). For index values, such as beam indices, CRI, SSBRI, etc., normalization can be achieved using one-hot encoding.

[0051] In some embodiments, a model refers to the data flow from the original input of a sample to the output target through multiple linear or nonlinear components. These models include neural network models, non-artificial intelligence modules for processing information or their corresponding models, and functional components or functions that map input information (including linear and nonlinear mappings) to output information. In some embodiments, each model corresponds to a model indicator (Model ID) or model identity (Model ID). In some embodiments, the model identity may also have other equivalent names or concepts such as: model index, first identifier, functional identifier, model indicator, etc.

[0052] For example, a model includes a model structure and model parameters. For instance, a neural network model includes a neural network model structure and neural network model parameters, which describe the structure of the neural network and the values ​​of its parameters, respectively. One neural network model structure can correspond to multiple neural network model parameters; that is, the neural network model structures can be the same, but the corresponding neural network model parameter values ​​can be different.

[0053] In some examples, a communication node can send a functionality or function index to another communication node to inform that the latter node can process information using the information processing method corresponding to the function index. Here, a functionality can also be called a functional module, functional function, functional mapping, functional description, etc., and is used to describe the characteristics or type of the information processing method. The type of information processing method can include various types, such as those used for positioning, beam management, CSI prediction, beam prediction, channel estimation, etc., and the characteristics of the information processing method include, but are not limited to, the scenario description adapted to the function, the description of input parameters, the description of output parameters, and the type of measurement parameters included in the output result. One functionality corresponds to one or more information processing methods, and each information processing method can be implemented using one or more models, or a functionality can be implemented using one or more models, or a functionality can be implemented using one or more information processing methods outside of models.

[0054] In some embodiments, particularly in high-frequency transmission, due to the high carrier frequency and large path loss, beamforming is required to concentrate energy propagation towards the terminal, necessitating beam management. Beam management includes, but is not limited to, beam scanning, beam tracking, and beam recovery. The core issue to be addressed is how to obtain accurate beam pairs with the lowest possible control overhead. Beam scanning includes transmitter beam scanning and / or receiver beam scanning. To reduce beam scanning overhead, a two-stage scanning approach can be used. In some embodiments, beam training can include a first stage, a second stage, and a third stage. In the first stage, both the transmitter and receiver beams are scanned simultaneously. In the second stage, a receiver beam can be fixed while different transmitter beams are scanned. The third stage involves fixing a transmitter beam and scanning different receiver beams. In one example, for instance, by transmitting N... T A beam, fixed receiver, repetition parameter set to off, then N is measured. TFor each beam, select L beam parameter information corresponding to L beams (L-RSRP or L1-SINR) for reporting. In one example, by sending 1 beam, N... R One receiving beam is used, with the repetition parameter set to "on", and then N is measured. R For each beam, the L1-RSRP or L1-SINR corresponding to the beam is selected for reporting. Alternatively, if no reporting is performed, the terminal retains the beam parameter information corresponding to the L beams, such as the optimal L receive beam indices. In N... R and N T When both are very large, the reference signal overhead for beam scanning is extremely high. Here, N R N T The value is a positive integer. Advanced beam prediction techniques can reduce the reference signal overhead during beam scanning. These advanced techniques can include AI (AI-based beam prediction) or other future and existing non-AI techniques for beam prediction. Beam prediction includes spatial beam prediction and temporal beam prediction, or spatiotemporal beam prediction.

[0055] In some examples, for spatial beam prediction, the input is a beam parameter information set (first beam parameter information array), which includes L0 beam parameter information. Based on the L0 beam parameter information, another beam information set (second beam parameter information array) is predicted, which includes L1 beam parameter information. L1 and L0 are both positive integers. In some examples, L0 <= L1. Alternatively, L0 can be greater than L1. In this case, the second beam parameter information array includes the beam parameter information corresponding to the predicted L1 preferred beams (e.g., the CRI and / or SSBRI corresponding to the optimal L1 beams, the L1-RSRP and / or L1-RSRP and / or probability, confidence, etc., where L1 can be a positive integer such as 1, 2, 3, 4, etc.). Beams can be transmit beams, receive beams, or transmit / receive beam pairs. Each beam can correspond to a beam direction. In some examples, spatial beam prediction can be implemented using an AI module, such as a network model. The beam parameter information corresponding to L0 beams is combined into a beam parameter information array (first beam parameter information array) and input into a neural network. The neural network outputs a beam parameter information array corresponding to L1 beams (second beam parameter information array), and determines the indices of the L beam parameter information with the largest beam parameter information in the second beam parameter information array as the preferred beams. In some examples, the spatial beam prediction can also be achieved through non-AI methods, such as linear or nonlinear mapping, Wiener filtering, etc. In some examples, the beams corresponding to the first and second beam parameter information groups are different types of beams, such as wide beams, narrow beams, regular beams, irregular beams, etc.

[0056] In some examples, during the process of time-domain beam prediction, N groups of first beam parameter information can be input, and M groups of second beam parameter information can be predicted based on these N groups of first beam parameter information. Each group of first beam parameter information includes L0 beam parameter information, and each group of beam parameter information in the M groups of second beam parameter information includes L1 beam parameter information. N, M, L, L1, and L0 are all positive integers. Moreover, the beam can be a transmit beam, a receive beam, or a transmit-receive beam pair. In some examples, the number of elements in the N groups of first beam parameter information can be different, and in some examples, the number of elements in the M groups of second beam parameter information can be different. Each beam can correspond to a beam number direction. Here, the N groups of first beam parameter information are the beam parameter information before the reference time slot, while the M groups of second beam parameter information are the beam parameter information after the reference time slot. In some examples, when L0 = L1, it is time-domain beam prediction, and when L0 < L1, it is space-time beam prediction. In some regression models, L0 may also be greater than L1, that is, the output of the model is M groups of beam parameter information, and each group of beam parameter information includes the beam parameter information corresponding to L1 preferred beams (such as the CRI and / or SSBRI corresponding to the optimal L1 beams, the L1-RSRP and / or L1-RSRP and / or probability, confidence, etc. corresponding to the L1 beams, and L1 can be a positive integer such as 1, 2, 3, 4, etc.). In some examples, the time-domain beam prediction can be implemented through an AI module, for example, by implementing. Input N groups of beam parameter information, where each group of beam parameter information includes L0 beam parameter information of a wave network model, or synthesize the N * L0 beam parameter information into a larger beam parameter information array (the first beam parameter information array) and input it into the network model. The network model outputs M groups of second beam parameter information, where each group of second beam parameter information includes L1 beam parameter information. It is also possible to combine the M * L1 beam parameter information into a beam parameter information array (the second beam parameter information array). For each group of beam parameter information in the M groups of beams, determine the index corresponding to the largest one or more beam parameter information as the preferred beam of this beam information group. In some examples, the above-mentioned time-domain beam prediction can also be implemented in a non-AI manner, such as through linear mapping or non-linear mapping, etc. to implement time-domain beam prediction.

[0057] In some examples, the model parameters of the neural network are obtained through online or offline training. For instance, the neural network model parameters are trained by inputting at least one sample. The sample includes features and labels. In some examples, the features are a first beam parameter information array, and the labels are a second beam parameter information array. During network training, the first beam parameter information array and the second beam parameter information array have a corresponding relationship, preferably a one-to-one correspondence. During the network model deployment or testing phase, by inputting the first beam parameter information array into the network model to output a predicted second beam parameter information array, and comparing the predicted second beam parameter information array with the second beam parameter information array corresponding to the labels, the prediction performance of the network can be determined, and the neural network model parameters can be trained based on the loss functions of both.

[0058] In some examples, transmit and / or receive beam indices are numbered according to a predefined method to form beam indices. A beam index includes one of the following: transmit beam index, receive beam index, or transmit / receive beam pair index. A beam index corresponds to a beam direction, or a vector or matrix corresponding to a beam direction. The terminal receives reference signals (such as CSI-RS, SSB, etc.) and measures the beam parameter information corresponding to each beam, obtaining a beam parameter information array. Generally, the first beam parameter information array is formed by the beam parameter information corresponding to the first beam set, and the second beam parameter information array is formed by the beam parameter information corresponding to the second beam set. The first beam set is a subset of the second beam set; however, this also includes cases where the first and second beam sets come from different beam sets, such as one being a wide beam and the other a narrow beam.

[0059] In some examples, the beam parameter information array is a one-dimensional array, such as a vector. In some examples, the beam parameter information array is a two-dimensional array, such as a matrix. In some examples, the beam parameter information array is an array larger than two dimensions, such as a tensor. Vectors and matrices can also be considered special cases of tensors.

[0060] In some examples, to better transmit data or signals, the base station or terminal needs to acquire measurement parameters. These measurement parameters may include channel state information or other parameters used to characterize the channel. The channel state information may include at least one of the following: Channel State Information - Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signals Block Resource Indicator (SSBRI), Layer 1 Reference Signal Received Power (L1-RSRP or RSRP), Differential RSRP, Layer 1 Reference Signal-to-Interference Noise Ratio (L1-SINR or SINR), Differential L1-SINR, Reference Signal Received Quality (RSRQ), L1-RSRQ, Differential RSRQ, Channel Quality Indicator (CQI), and Precoding Matrix Indicator (CQI). The precoding matrix indicator (CSI) includes a matrix indicator (PMI), a layer indicator (LI), a rank indicator (RI), and precoding information. Precoding information includes type I precoding information, such as codebook-based precoding information, and the precoding matrix indicator is one type of codebook-based precoding information. Precoding information also includes non-codebook-based implementations, such as type II precoding information. In one example, a CSI that only includes type I precoding information is called type I CSI; in another example, a CSI that includes type II precoding information is called type II CSI.

[0061] In some embodiments, the terminal and base station transmit channel state information matching the channel information through a first type of precoding information. This first type of precoding information is precoding information based on a traditional channel feature matrix or the quantized values ​​of the feature matrix. For example, precoding information implemented using a codebook method. A specific example is the codebook for N antennas in LTE, where N = 2, 4, 8, 12, 16, 24, 32, etc., and in NR, there are type I codebooks, type II codebooks, type II port selection codebooks, enhanced type II codebooks, enhanced type II selection codebooks, and further enhanced type II selection codebooks. The codebook includes L codewords. The main idea is that the base station and terminal pre-store L codewords according to a prescribed formula, table, or dictionary. In some examples, the codeword is a vector. In some examples, the codeword is a matrix, consisting of r columns, each column being a vector. Preferably, each column of the matrix is ​​mutually orthogonal. The codewords that match the channel information here include, but are not limited to, at least one of the following: the codeword has the smallest distance to the channel information; the codeword has the largest correlation with the channel information; the codeword has the smallest distance to the optimal right singular vector or matrix of the channel information; the codeword has the largest correlation with the optimal right singular vector or matrix of the channel information; the codeword has the largest signal-to-noise ratio calculated from the channel information, etc. L is an integer greater than 1, generally greater than the number of transmit antennas.

[0062] In some examples, the terminal and base station transmit channel state information matching the channel information via type II precoding information. This type II precoding information is based on AI-generated channel state information. In one example, the base station and terminal obtain the channel state information through an autoencoder, which includes an encoder and a decoder. The encoder is located at the terminal, while the decoder is located at the base station. The terminal compresses the obtained channel information H using the encoder to obtain compressed H1, and then quantizes and feeds the compressed H1 back to the base station. The base station receives the quantized H1, dequantizes it, and inputs it into the decoder. The decoder decompresses the H1 to recover it.

[0063] In some examples, channel information is information describing the channel environment between communication nodes, obtained from a reference signal (such as CSI-RS), such as a time-domain channel matrix or a frequency-domain channel matrix. In other examples, channel information is a complex matrix whose size depends on the number of transmit antennas Nt, the number of receive antennas Nr, and the resource elements (REs). For example, a physical resource block must have at least one Nr*Nt channel matrix.

[0064] In some embodiments, the beam parameter information is the Layer 1 reference signal received power (L1-RSRP or RSRP) corresponding to at least one beam, or differential RSRP. In some embodiments, the beam parameter information is the Layer 1 reference signal-to-interference-noise ratio (L1-SINR or SINR) corresponding to at least one beam, or differential SINR. In some embodiments, the beam parameter information is the reference signal received quality (RSRQ) corresponding to at least one beam. In some embodiments, the beam parameter information is the beam angle (AOA, ZOA, AOD, ZOD, etc., sometimes also referred to as horizontal angle of arrival, vertical angle of arrival, horizontal angle of departure, and vertical angle of departure, respectively) corresponding to at least one beam. In some embodiments, the beam parameter information is the transmit beam index corresponding to at least one beam. In some embodiments, the beam parameter information is the receive beam index corresponding to at least one beam. In some embodiments, the beam parameter information is the transmit and receive beam pair index (referred to as beam pair index or beam pair) corresponding to at least one beam. In some embodiments, the beam parameter information is a Beam Domain Receive Power Map (BDRPM) corresponding to at least one beam. In some embodiments, the beam parameter information is a Channel State Information Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI) corresponding to at least one beam. In some embodiments, the beam parameter information is a Synchronization Signals Block Resource Indicator (SSBRI) or other reference signal resource indicators, such as SRSRI, corresponding to at least one beam. In some embodiments, the beam parameter information is a combination of at least two of the following beam parameter information corresponding to at least one beam: RSRP, RSRQ, SINR, beam angle, transmit beam index, receive beam index, beam pair index, CRI, SSBRI, etc. In some embodiments, the beam parameter information is a linear value of one of RSRP, RSRQ, and SINR. In some embodiments, the beam parameter information is a logarithmic value, or decibel (dB), of one of RSRP, RSRQ, and SINR.

[0065] In some embodiments, the beam parameter information is obtained based on CSI-RS measurements. In some embodiments, the beam parameter information is obtained based on SSB measurements, and in some embodiments, the beam parameter information is obtained based on SRS measurements.

[0066] In some examples, beam parameter information is a subset of channel state information; that is, beam parameter information belongs to channel state information. Channel state information, in turn, belongs to measurement parameters. In other examples, measurement parameters, channel state information, and beam parameter information all belong to measurement results, processing results, or generation results.

[0067] In some examples, to transmit channel state information at the physical layer, the terminal and base station define a report (e.g., a CSI report or CSI report configuration). The CSI report defines at least one of the following parameters: time-frequency resources used for CSI feedback, report quantity (including the CSI), time-domain type (reportConfigType) of the CSI feedback, channel measurement resources, interference measurement resources, and measurement bandwidth. The CSI report can be transmitted on uplink resources, including PUSCH and PUCCH. The CSI report also includes time-domain characteristics, including periodic CSI reports (P-CSI), aperiodic CSI reports (AP-CSI), and semi-persistent CSI reports (SP-CSI). Generally, P-CSI transmits a relatively small number of bits and is transmitted on the PUCCH, while A-CSI transmits a larger number of bits and is typically transmitted on the PUSCH. SP-CSI can be transmitted on either the PUSCH or the PUCCH. PUCCH-based P-CSI is generally configured using higher-layer signaling (Radio Resource Control, RRC), and PUCCH-based SP-CSI is also configured, activated, or deactivated using higher-layer signaling (RRC and / or MAC CE). PUSCH-based SP-CSI is activated or deactivated using physical layer signaling (Downlink Control Information, DCI). A-CSI is triggered by DCI, which is typically transmitted on the Physical Downlink Control Channel (PDCCH).

[0068] In this embodiment of the disclosure, feedback CSI can also be referred to as transmitted CSI or sent CSI, for example, carrying channel state information on uplink transmission resources for feedback or transmission. Both the uplink transmission resources and the corresponding CSI are indicated by a channel state information report. In one example, transmitting a CSI report means transmitting the content indicated in the CSI report that needs to be transmitted, including but not limited to channel state information. Here, transmission includes sending or receiving, and can also be replaced by feedback or receiving. In another example, transmitting a CSI report means transmitting the content indicated in the CSI report that needs to be transmitted, including but not limited to channel state information, through uplink transmission resources. Here, transmission includes sending or receiving, and can also be replaced by feedback or receiving.

[0069] In some examples, the base station transmits reference signals for channel measurement in N time slots. The terminal receives the reference signals for channel measurement transmitted in the N time slots in at least one time slot. Based on the received reference signals for channel measurement transmitted in the N time slots, the terminal obtains the channel information Hi, i = 1, ..., N, for the corresponding time slot. Here, the N time slots are the time slots preceding the reference time slot. In some embodiments, the reference time slot includes one of the following: a time slot agreed upon by the base station and the terminal, or a current time slot, where the current time slot is the time slot for acquiring CSI; or a time slot indicated by the base station; or a time slot obtained by adding a fixed offset to a time slot indicated by the base station; or a time slot obtained by adding a fixed offset to the time slot in which the terminal receives the base station indication signaling.

[0070] In some examples, before a communication node can acquire channel state information (CSI), it first needs to determine the channel state reference resource (CSI reference resource). The CSI reference resource is a time-frequency resource. In the time domain, it is a time slot; in the frequency domain, it is the bandwidth for measuring CSI. For example, in broadband measurement, the frequency domain granularity is the entire bandwidth of the CSI measurement; in sub-band measurement, it is a sub-band. Therefore, the frequency domain of the CSI reference resource is relatively well-defined; this section only describes how the time domain of the CSI reference resource is determined. The time slot where the CSI reference resource for channel state information is located is n1. That is, the CSI corresponding to the target measurement is the set of channel measurement resources earlier than n1 and / or the set of interference measurement resources closest to n1; where n1 = n1. ref , n' represents the CSI reporting time slot, μ DL and These are the uplink and downlink carrier spacings, n, respectively. n is a positive integer. ref The value is determined according to one of the following methods:

[0071] When CSI reporting is periodic or semi-persistent and only one CSI-RS resource is configured for channel measurement, n ref The values ​​of satisfy: such that n1 = nn ref It is the smallest and greater than or equal to a valid downlink subframe.

[0072] When CSI reports are periodic or semi-persistent and more than one CSI-RS resource is configured for channel measurements, then the value of nref satisfies the following condition: n1 = nn ref It is the smallest and greater than or equal to a valid downlink subframe.

[0073] When the CSI report is a non-periodic report, n ref The value nn satisfies ref To trigger the CSI report slot, or when the CSI report is an aperiodic report, such that n1 = nn ref It is the smallest and greater than or equal to a valid downlink subframe. Here, Z' represents the minimum delay requirement from the last symbol of the channel measurement resource to the first symbol of the resource carrying the CSI report. This indicates the number of symbols in a time slot. This indicates rounding down. For ease of description, Z' is referred to as the first delay Z', while the second delay Z represents the minimum delay from the last symbol of the transport resource (such as PDCCH) carrying physical signaling used to trigger aperiodic CSI reports to the first symbol of the resource (such as PUCCH or PUSCH) used to carry CSI reports.

[0074] In some embodiments, the antenna is a physical antenna. In some examples, the antenna is a logical antenna. In some examples, the concepts of port and antenna are interchangeable. In some examples, the antenna is a transmitting antenna. In some examples, the antenna is a receiving antenna. In some examples, the antenna comprises an antenna pair consisting of a transmitting antenna and a receiving antenna. In some examples, the antenna can be a uniform linear array. In some examples, the antenna is a uniform planar array, such as an array element / antenna comprising Ng rows and Mg columns, where Ng and Mg are positive integers. In some examples, the antenna is a uniform circular array. In some examples, the antenna can be a non-uniform linear array. In some examples, the antenna is a non-uniform planar array. In some examples, the antenna is a non-uniform circular array. In some examples, the antenna is a directional antenna, and in some examples, the antenna is an omnidirectional antenna. In some examples, the antenna is a dual-polarized antenna. In some examples, the antenna is a single-polarized antenna.

[0075] like Figure 2As shown, this disclosure provides a transmission method for configuring channel state information reports, the method comprising the following steps:

[0076] S101. Obtain CSI report configuration. The CSI report configuration includes parameter information for L CSI reports. The L CSI reports correspond to C sets of reference signal resources.

[0077] Where L and C are both positive integers greater than 1.

[0078] In some embodiments, the L CSI reports correspond to C reference signal resources. This includes, but is not limited to, scenarios where a reference signal resource set includes only one CSI resource. In some embodiments, the L CSI reports correspond to C reference signal resource configurations. This includes, but is not limited to, scenarios where a reference signal resource configuration includes only one CSI resource set.

[0079] In some embodiments, the L CSI reports mentioned above are periodic CSI reports or semi-persistent CSI reports. Alternatively, the L CSI reports mentioned above can also be aperiodic CSI reports. For aperiodic CSI reports, the first communication node can configure L CSI reports at a higher layer and trigger or activate them once via a physical layer signaling.

[0080] In some embodiments, the CSI report configuration also includes configuration information for C sets of reference signals. In other instances, the configuration information for the C sets of reference signals is provided through a different higher-layer signaling configuration than the CSI report configuration.

[0081] A set of reference signal resources includes at least one reference signal resource. In some embodiments, a reference signal resource may include one or more CSI-RS resources and / or one or more SSB resources, etc.

[0082] In one possible implementation, each of the L CSI reports corresponds to a set of reference signal resources.

[0083] Therefore, the value of L is equal to the value of C. For example, the value of L can be a positive integer greater than 1, such as 2 or 3. Taking the value of L as 2 as an example, the first communication node can configure 2 CSI reports, each CSI report corresponding to a reference resource set. That is, the first communication node can also configure 2 reference resource sets corresponding to these 2 CSI reports.

[0084] In another possible implementation, one of the L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports in the L CSI reports corresponds to one reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = M + 1, C = N + M. In one example, such as in time-domain beam prediction, beam scanning on M prediction time slots is completed by configuring N + M reference signal resource sets and / or M + 1 CSI reports at once. The base station transmits reference signals from the reference signal resource sets in the N time slots. The terminal receives the reference signals from the reference signal resource sets in the N time slots, measures them to obtain beam parameter information for the N time slots, uses the beam parameter information for the N time slots as input to the model to predict the beam parameter information for the M time slots, and feeds back all or part of the beam parameter information for the M time slots through a CSI report. The base station receives all or part of the beam parameter information in the M time slots, and completes the topK transmission beam scan in the M time slots by transmitting reference signals in the M time slots and receiving, measuring, and reporting CSI reports of the reference signals in the M time slots by the terminal.

[0085] In another possible implementation, one of the L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports in the L CSI reports corresponds to one reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, C = N + 2*M. In one example, M of the 2*M reports contain null values, meaning their report quality (reportQuantity) is set to None. These M CSI reports do not perform CSI reporting but only CSI measurements, such as receiving beam scanning. M is a positive integer. In one example, the M CSI reports with null quality values ​​are the M CSI reports with odd-numbered CSI report indices among the 2M CSI reports. In another example, the M CSI reports with null quality values ​​are the M CSI reports with even-numbered CSI report indices among the 2M CSI reports. In one example, the M CSI reports with empty quality values ​​are the M CSI reports with the smallest CSI report index among the 2M CSI reports. In another example, the M CSI reports with empty quality values ​​are the M CSI reports with the largest CSI report index among the 2M CSI reports.

[0086] In some embodiments, a CSI report is configured to have empty content, indicating that the report quality (reportQuantity) in the CSI report is set to None. For the terminal, if a CSI report is empty, it will no longer provide CSI-related content.

[0087] In one example, the transmission slot of the i-th CSI report among the L CSI reports is T*i+p, where p is the transmission slot of the first CSI report, and T is the transmission interval between two CSI reports, i = 0, ..., L, L, T is a positive integer, and p is an integer.

[0088] In one example, each of the L CSI reports contains, but is not limited to, at least one beam parameter information. In one example, one of the L CSI reports contains, but is not limited to, at least one of the following: K L1-RSRPs, K L1-RSRPs, 1 or K CRIs, and 1 or K SSBRIs. In one example, M of the L CSI reports contain, but is not limited to, at least one of the following: 1 L1-RSRP, 1 L1-RSRP, 1 CRI, and 1 SSBRI. In another example, M of the L CSI reports contain, but is not limited to, at least one of the following: 1 L1-RSRP, 1 L1-RSRP, 1 CRI, and 1 SSBRI. And M of the CSI reports are empty, i.e., only receive beam scanning is performed.

[0089] In some embodiments, a CSI report configuration may include not only the parameter information of the L CSI reports mentioned above, but also the configuration information of the C reference signal resource sets corresponding to the L CSI reports.

[0090] It should be noted that, in the processes of spatial prediction of the transmit beam, spatial prediction of the transmit / receive beam pair, temporal prediction of the transmit beam, and temporal prediction of the transmit / receive beam pair, to improve prediction accuracy, at least K optimal beams can be predicted in each prediction time slot. Here, K is an integer greater than or equal to 1. The process of transmitting and measuring these K predicted beams or beam pairs to finally determine the optimal transmit beam or beam pair includes multiple CSI measurement and feedback processes. It is possible to configure the measurement and feedback of another CSI report via signaling after the measurement and feedback of one CSI report is completed. However, this usually results in a significant delay. Therefore, in the above embodiment, the first communication node can configure parameter information including the aforementioned L CSI reports in one CSI report. This improves the flexibility of channel state information reporting, eliminates the need to reconfigure CSI via higher-layer signaling, and thus reduces signaling delay and / or signaling overhead.

[0091] In some embodiments, the first communication node may configure CSI report configuration before the first time slot. That is, L CSI reports and / or C sets of reference signal resources may be configured before the first time slot.

[0092] The first time slot satisfies any one of the following: the first time slot is the minimum time slot for sending L CSI reports; the first time slot is the time slot for sending the first CSI report among the L CSI reports; the first time slot is the minimum time slot for sending reference signal resources in the C sets of reference signal resources; the first time slot is the time slot for sending reference signal resources in the first set of the C sets of reference signal resources.

[0093] S102, Configure CSI report sending.

[0094] In some embodiments, the first communication node sends CSI report configurations before or during the first time slot. That is, the first communication node sends CSI report configurations corresponding to L CSI reports and / or configuration information for C sets of reference signal resources before the first time slot. Here, the first time slot is the minimum time slot for sending L CSI reports, or the time slot for sending the first CSI report among the L CSI reports. Alternatively, the first time slot is the minimum time slot for sending reference signal resources from the C sets of reference signal resources; or the first time slot is the time slot for sending reference signal resources from the first set of the C sets of reference signal resources.

[0095] In some embodiments, the method provided in this disclosure can be applied to the processes of spatial prediction of transmit beams, spatial prediction of transmit-receive beam pairs, temporal prediction of transmit beams, and temporal prediction of transmit-receive beam pairs.

[0096] Example 1: Perform spatial transmission beam prediction, and perform spatial beam prediction on the second communication node side.

[0097] In one example, taking the second communication node as a terminal and the first communication node as a base station, spatial beam prediction is performed on the second communication node side in the case of spatial transmission beam prediction. During the entire beam prediction process, the entire beam space includes MA transmission beams, denoted as SetA. The actual prediction result obtained from the spatial beam prediction is MB transmission beams, denoted as SetB. Here, MB is less than MA, and both MB and MA are positive integers. The first communication node can configure L CSI reports and the corresponding reference signal resource sets in time slot T0, which is before the aforementioned first time slot. For example, in a CSI report configuration, parameter information for L CSI reports is configured. The i-th CSI report in the L CSI reports corresponds to the i-th reference signal resource set, i = 1, ..., L. For example, the reference signal resources in the reference signal resource set can be CSI-RS or SSB, etc. L can be an integer greater than or equal to 2. For example, the value of L can be 2, 3, etc.

[0098] Furthermore, the first communication node transmits the reference signal resources corresponding to the first reference signal resource set in time slot T1, and the second communication node can receive and measure the reference signal resources corresponding to the first reference signal resource set in time slot T2 or before T2 to obtain the MB beam parameter information corresponding to the transmitted beam in SetB. The first time slot can be time slot T1, time slot T2, or any time between time slots T1 and T2.

[0099] Therefore, the second communication node can perform spatial beam prediction based on MB beam parameter information. For example, the second communication node can input the MB beam parameter information and / or the corresponding CRI into the spatial beam model to predict MA beam parameter information, and obtain the beam parameter information and / or the corresponding CRI for the preferred K transmission beams based on the MA beam parameter information. Alternatively, the spatial beam model can directly predict the beam parameter information of the K preferred transmission beams or the CRI corresponding to the K preferred transmission beams.

[0100] The second communication node can transmit the first CSI report in time slot T2. Correspondingly, the first communication node can receive this first CSI report. The first CSI report includes beam parameter information corresponding to the K predicted preferred transmission beams and / or K CRIs.

[0101] In one possible implementation, the second communication node may also send a second CSI report.

[0102] For example, the first communication node can transmit at least K reference signal resources in time slot T3 where the pre-configured second set of reference signal resources is located, using the transmit beam corresponding to K parameters in the first CSI report, such as CRI, with each reference signal resource corresponding to one transmit beam.

[0103] Therefore, the second communication node can receive K reference signal resources and measure K beam parameter information. Based on these K beam parameter information, it determines the beam parameter information corresponding to the optimal transmit beam, as well as the CRI corresponding to the optimal transmit beam. It then transmits a second CSI report in time slot T4, which includes the determined beam parameter information and / or CRI corresponding to the optimal transmit beam. Correspondingly, the first communication node receives the second CSI report, decodes it, and thus obtains the beam parameter information and / or CRI corresponding to the optimal transmit beam. Furthermore, scheduling and resource transmission can be performed based on the determined beam parameter information and / or CRI corresponding to the optimal transmit beam.

[0104] In another possible implementation, the second communication node no longer sends a second CSI report.

[0105] In one example, due to resource conflicts or scheduling issues, the first communication node cannot transmit the reference signal resources in the aforementioned second reference signal resource set during time slot T3. Consequently, the second communication node stops transmitting the second CSI report. The first communication node can send a signaling instruction to the second communication node to instruct the terminal to stop transmitting the second CSI report. Upon receiving this signaling instruction, the second communication node will cease performing the measurement and feedback corresponding to the second CSI report.

[0106] In another example, when K is 1, for instance, if only one of the K preferred CRI values ​​reported by the second communication node is true, the second communication node will not send a second CSI report. Alternatively, when K is greater than or equal to 2, the first communication node can transmit the second reference signal resource set in time slot T3, and the second communication node can then send a second CSI report.

[0107] In the embodiments disclosed herein, T0, T1, T2, T3 and T4 are all integers, and T1≥T0, T2≥T1, T3≥T2, T4≥T3.

[0108] In some embodiments, the number of reference signal resources in the second reference signal resource set configured by the first communication node may be greater than K.

[0109] For example, when the number of reference signal resources in the second reference signal resource set configured by the first communication node is greater than K, the first communication node can determine K reference signal resources in the second reference signal resource set and send them to the second reference signal. For example, the first communication node can determine the K reference signal resources with the smallest resource index, the K reference signal resources with the largest reference signal resource index, or K reference signal resources starting from one of the reference signal resource indices, or K reference signal resources agreed upon by the first and second communication nodes, or K reference signal resources at equal intervals, etc.

[0110] In some embodiments, prediction of the transmit and receive beam pairs can also be performed. The specific process is described in Embodiment 1 above and will not be repeated here.

[0111] In some embodiments, during the prediction of transmit and receive beam pairs, when scanning / measuring / predicting the receive beam, the repetition parameter of the transmitted reference signal resource set can be set to on, indicating that the reference signal resources in this reference signal resource set use the same transmit beam. Otherwise, it is set to off. In some examples, it may also be necessary to consider sending the optimal receive beam for receiving reference signals or other data. Before T1 time slot or after T4, the first communication node can send a reference signal resource set, with the repetition parameter set to on, to scan for the optimal receive beam. Correspondingly, the second communication node receives and measures the reference signal resources in the reference signal resource set to obtain a set of beam metric parameters, thereby finding the largest beam metric parameter to determine its optimal receive beam, and using this receive beam for measurement and reception in subsequent measurements or transmissions. In this case, the reference signal resources used to measure the receive beam can also be configured in the same higher-layer signaling as the aforementioned L reference signal resources, or they can be configured in T0 time slot.

[0112] Example 2: Perform spatial transmission beam prediction, and perform spatial beam prediction on the first communication node side.

[0113] For example, taking the second communication node as a terminal and the first communication node as a base station, in the case of spatial transmission beam prediction, spatial beam prediction is performed on the first communication node side. During the entire beam prediction process, the entire beam space includes MA transmission beams, denoted as SetA. The actual prediction result obtained from the spatial beam prediction is MB transmission beams, denoted as SetB. Here, MB is less than MA, and both MB and MA are positive integers. The first communication node can configure L CSI reports and C reference signal resource sets corresponding to the L CSI reports in time slot T0, which is before the aforementioned first time slot. For example, in a CSI report configuration, parameter information for L CSI reports is configured. The i-th CSI report in the L CSI reports corresponds to the i-th reference signal resource set, i = 1, ..., L. For example, the reference signal resources in the reference signal resource set can be CSI-RS or SSB, etc. L can be an integer greater than or equal to 2. For example, the value of L can be 2, 3, etc.

[0114] Furthermore, the first communication node transmits the reference signal resources corresponding to the first reference signal resource set in time slot T1, and the second communication node can receive and measure the reference signal resources corresponding to the first reference signal resource set in time slot T2 or before T2 to obtain the MB beam parameter information corresponding to the transmitted beam in SetB. The first time slot can be time slot T1, time slot T2, or any time between time slots T1 and T2.

[0115] The second communication node can transmit the first CSI report in time slot T2. Correspondingly, the first communication node can receive this first CSI report. The first CSI report includes all or part of the beam parameter information and / or corresponding CRIs corresponding to the aforementioned MB beam parameter information. The first communication node can input the obtained beam parameter information and / or corresponding CRIs corresponding to the MB transmit beams into a spatial beam prediction model to predict and obtain MA beam parameter information. Based on the MA beam parameter information, it can obtain the preferred K transmit beam parameter information and / or corresponding CRIs. Alternatively, the first communication node can predict the beam parameter information or the corresponding CRIs of the K preferred transmit beams based on the spatial beam model.

[0116] In one possible implementation, the second communication node may also send a second CSI report.

[0117] For example, the first communication node can transmit at least K reference signal resources in time slot T3 where the pre-configured second set of reference signal resources is located, using the transmit beam corresponding to K parameters in the first CSI report, such as CRI, with each reference signal resource corresponding to one transmit beam.

[0118] Therefore, the second communication node can receive K reference signal resources and measure K beam parameter information. Based on these K beam parameter information, it determines the beam parameter information corresponding to the optimal transmit beam, as well as the CRI corresponding to the optimal transmit beam. It then transmits a second CSI report in time slot T4, which includes the determined beam parameter information and / or CRI corresponding to the optimal transmit beam. Correspondingly, the first communication node receives the second CSI report, decodes it, and thus obtains the beam parameter information and / or CRI corresponding to the optimal transmit beam. Furthermore, scheduling and resource transmission can be performed based on the determined beam parameter information and / or CRI corresponding to the optimal transmit beam.

[0119] In another possible implementation, the second communication node no longer sends a second CSI report.

[0120] For example, the first communication node cannot transmit the reference signal resources in the aforementioned second reference signal resource set during time slot T3, and thus, the second communication node no longer transmits the second CSI report. Specifically, the first communication node may send a signaling instruction to the second communication node to instruct the terminal not to transmit the second CSI report, and the second communication node, upon receiving this signaling instruction, will no longer perform the measurement and feedback corresponding to the second CSI report.

[0121] In another example, when K is 1, for instance, if only one of the K preferred CRI values ​​reported by the second communication node is a single value, the second communication node will not send a second CSI report. Alternatively, when K is greater than or equal to 2, the first communication node can transmit the second reference signal resource set in time slot T3, and the second communication node can then send a second CSI report.

[0122] In the embodiments of this disclosure, T0, T1, T2, T3 and T4 are all integers, and T1≥T0, T2≥T1, T3≥T2, T4≥T3.

[0123] In some embodiments, the number of reference signal resources in the second reference signal resource set configured by the first communication node may be greater than K.

[0124] For example, when the number of reference signal resources in the second reference signal resource set configured by the first communication node is greater than K, the first communication node can determine K reference signal resources in the second reference signal resource set and send them to the second reference signal. For example, the first communication node can determine the K reference signal resources with the smallest resource index, the K reference signal resources with the largest reference signal resource index, or K reference signal resources starting from one of the reference signal resource indices, or K reference signal resources agreed upon by the first and second communication nodes, or K reference signal resources at equal intervals, etc.

[0125] In some embodiments, prediction of the transmit and receive beam pairs can also be performed. The specific process is described in Embodiment 2 above and will not be repeated here.

[0126] In some embodiments, during the prediction of transmit and receive beam pairs, when scanning / measuring / predicting the receive beam, the repetition parameter of the transmitted reference signal resource set can be set to on, indicating that the reference signal resources in this reference signal resource set use the same transmit beam. Otherwise, it is set to off. In some examples, it may also be necessary to consider sending the optimal receive beam for receiving reference signals or other data. Before T1 time slot or after T4, the first communication node can send a reference signal resource set, with the repetition parameter set to on, to scan for the optimal receive beam. Correspondingly, the second communication node receives and measures the reference signal resources in the reference signal resource set to obtain a set of beam metric parameters, thereby finding the largest beam metric parameter to determine its optimal receive beam, and using this receive beam for measurement and reception in subsequent measurements or transmissions. In this case, the reference signal resources used to measure the receive beam can also be configured in the same higher-layer signaling as the aforementioned L reference signal resources, or they can be configured in T0 time slot.

[0127] Example 3: Perform time-domain transmit beam prediction, and perform time-domain beam prediction on the second communication node side.

[0128] For example, taking the second communication node as a terminal and the first communication node as a base station, time-domain beam prediction is performed on the second communication node side in the case of time-domain transmit beam prediction. During the entire beam prediction process, the entire beam space includes MA transmit beams, denoted as SetA. The actual prediction result obtained from the time-domain beam prediction is MB transmit beams, denoted as SetB. Here, MB is less than MA, and both MB and MA are positive integers.

[0129] The time-domain beam prediction model can predict beam parameter information for the next M time slots (prediction windows or second time windows) based on beam parameter information from N historical time slots (measurement windows or first time windows). N is a positive integer greater than 1, and M is an integer greater than or equal to 1.

[0130] The first communication node can configure L CSI reports and C reference signal resource sets corresponding to the L CSI reports in time slot T0, which is before the aforementioned first time slot. For example, in a CSI report configuration, parameter information for L CSI reports is configured. The first communication node configures N+M reference signal resource sets, with the first CSI report associated with N reference signal resource sets, the ith CSI report associated with the (N+i-1)th reference signal resource set, and i = 2, ..., L. Here, the reference signal resources can be CSI-RS or SSB, etc. L is an integer greater than or equal to 2; for example, L = M+1. After configuring the N+M reference signal resource sets, the first communication node transmits the reference signal resources from the ith to the Nth reference signal resource sets in the N time slots preceding time slot T1.

[0131] Furthermore, the second communication node receives and measures the reference signals in the N reference signal resource sets in the N time slots before time slot T2. It obtains MB beam parameter information for each of the N time slots corresponding to the transmitted beam in SetB. It then uses the MB beam parameter information and / or the corresponding CRI input model prediction for each of the N time slots to obtain M beam parameter information groups (each beam parameter information group includes MA beam parameter information). Based on each of the M beam parameter information groups, it obtains the preferred K transmitted beam parameter information and / or CRI from the beam parameter information groups, resulting in M ​​preferred beam parameter information groups and / or CRI groups.

[0132] Alternatively, the second communication node can directly predict the beam parameter information groups of M preferred transmission beams or the corresponding CRI groups of M preferred transmission beams based on a time-domain beam model. Each preferred beam parameter information group includes K preferred beam parameter information, and each preferred CRI group includes K preferred CRIs. The M preferred beam parameter information groups and / or CRI groups are used to form a first CSI report, which the second communication node can transmit on time slot T2.

[0133] In one possible implementation, the first communication node obtains the aforementioned M preferred beam parameter information groups and / or CRI groups, and performs M rounds of second-stage beam scanning to determine the optimal transmission beam in each of the M predicted time slots. For the j-th second-stage scan, in time slot T3_j where the pre-configured N+j-th reference signal resource set is located, at least K reference signal resources are transmitted using the preferred transmission beams from the j-th preferred beam parameter information group and / or CRI group, with each reference signal resource corresponding to one transmission beam.

[0134] Therefore, the second communication node can receive K reference signal resources and measure K beam parameter information. Based on these K beam parameter information, it determines the beam parameter information corresponding to the optimal transmit beam and the CRI corresponding to the optimal transmit beam. It then transmits the (j+1)th CSI report in time slot T4_j, which includes the optimal beam parameter information and / or CRI. The base station receives the (j+1)th CSI report, thereby obtaining the optimal beam parameter information and / or CRI. Subsequently, in the j-th period of the prediction window, scheduling and resource transmission can be performed based on the determined optimal transmit beam parameter information and / or CRI.

[0135] In another possible implementation, the first communication node cannot transmit reference signal resources from the second reference signal resource set in time slot T3_j, thereby preventing the second communication node from sending other CSI reports. Specifically, the first communication node can send a signaling instruction to the second communication node to instruct the terminal not to send other CSI reports, thus preventing the second communication node from performing measurements and feedback corresponding to other CSI reports upon receiving this signaling instruction.

[0136] In another example, when K is 1, for instance, if the second communication node reports only one of the K preferred CRI values, the second communication node will not perform the measurement and feedback corresponding to the (1+j)th CSI report in order to send a CSI report. Alternatively, when K is greater than or equal to 2, the first communication node can transmit the second reference signal resource set in time slot T3_j, and the second communication node can then send a new CSI report.

[0137] In some embodiments, the number of reference signal resources in the second reference signal resource set configured by the first communication node may be greater than K.

[0138] Exemplarily, when the number of reference signal resources in the second reference signal resource set configured by the first communication node is greater than K, the first communication node may determine K reference signal resources from the second reference signal resource set and send them to the second communication node. For example, the first communication node may determine K reference signal resources with the smallest resource indexes, K reference signal resources with the largest reference signal resource indexes, or K reference signal resources starting from one of the reference signal resource indexes, or K reference signal resources agreed upon by the first communication node and the second communication node, or K equally spaced reference signal resources, etc.

[0139] In some embodiments, the second communication node may form a CSI report for feedback on the second-stage beam scans for M times. That is, the second communication node may form a CSI report and feedback the preferred beam parameter information and / or CRI corresponding to the reference signal resources in the reference signal resource set transmitted through the T3_j time slots, where j = 1,..., M.

[0140] In the embodiments of the present disclosure, T0, T1, T2, T3_j, and T4_j are integers, and T1 ≥ T0, T2 ≥ T1, T3_j ≥ T2, T4_j ≥ T3_j, T3_k < T3_j, T4_k < T4_j, where k < j, and j, k = 1,..., M. In addition, the number of reference signal resources MB on each of the above N time slots may be different, and the number K of beam parameter information at each feedback moment may also be different. For example, for the j-th time slot, there are Kj beam parameter information and / or CRI, and the corresponding number of reference signal resources is also Kj, where j = 1,..., M.

[0141] In some embodiments, beam prediction for the receiving beam may also be performed. For the specific process, refer to Embodiment 3 above and will not be elaborated here.

[0142] In some embodiments, the transmit beam of the above embodiments is replaced with a receive beam, so that the receive beam can be predicted according to a similar method. When scanning / measuring / predicting the receive beam, the repetition parameter of the transmitted reference signal resource set can be set to on, indicating that the reference signal resources in this reference signal resource set use the same transmit beam. Otherwise, it is set to off. In some embodiments, it may also be necessary to consider sending the optimal receive beam for receiving reference signals or other data. Before time slot T1, or after or before each second-stage scan, such as after or before T4_j, j=1…M, the first communication node sends a reference signal resource set, with the repetition parameter set to on, to scan for the optimal receive beam. The second communication node receives and measures the reference signal resources in the reference signal resource set to obtain a set of beam metric parameters, thereby finding the largest beam metric parameter to determine the optimal receive beam for this prediction time slot, and using this receive beam for measurement and reception in subsequent measurements or transmissions of this prediction time slot. The reference signal resources used to measure the received beam can also be configured in the same higher-layer signaling as the aforementioned M+N reference signal resources, or configured at time T0.

[0143] Example 4: Perform time-domain transmit beam prediction, and perform time-domain beam prediction on the first communication node side.

[0144] For example, taking the second communication node as a terminal and the first communication node as a base station, in the case of time-domain transmit beam prediction, time-domain beam prediction is performed on the first communication node side. During the entire beam prediction process, the entire beam space includes MA transmit beams, denoted as SetA. The actual prediction result obtained from the time-domain beam prediction is MB transmit beams, denoted as SetB. Here, MB is less than MA, and both MB and MA are positive integers.

[0145] The time-domain beam prediction model can predict beam parameter information for the next M time slots (prediction windows or second time windows) based on beam parameter information from N historical time slots (measurement windows or first time windows). N is a positive integer greater than 1, and M is an integer greater than or equal to 1.

[0146] The first communication node can configure L CSI reports and C reference signal resource sets corresponding to the L CSI reports in time slot T0, which is before the aforementioned first time slot. For example, in a CSI report configuration, parameter information for L CSI reports is configured. The first communication node configures N+M reference signal resource sets, with the first CSI report associated with N reference signal resource sets, the ith CSI report associated with the (N+i-1)th reference signal resource set, and i = 2, ..., L. Here, the reference signal resources can be CSI-RS or SSB, etc. L is an integer greater than or equal to 2; for example, L = M+1. After configuring the N+M reference signal resource sets, the first communication node transmits the reference signal resources from the ith to the Nth reference signal resource sets in the N time slots preceding time slot T1.

[0147] Subsequently, the second communication node receives and measures the reference signals in the N reference signal resource sets in the N time slots before time slot T2. It obtains MB beam parameter information for the N time slots corresponding to the transmitted beam in SetB. Based on all or part of the MB beam parameter information and / or corresponding CRIs in each of the N time slots (e.g., selecting beam parameter information and / or CRIs with beam parameter information greater than a preset threshold, or selecting multiple beam parameter information and / or CRIs with the highest order), it forms the first CSI report and feeds it back in time slot T2. Correspondingly, the first communication node can receive this first CSI report. That is, the first communication node can obtain all or part of the MB beam parameter information and / or corresponding CRIs in each of the N time slots.

[0148] The first communication node can input all or part of the obtained MB beam parameter information and / or corresponding CRIs from the N time slots into the model prediction to obtain M beam parameter information groups (each beam parameter information group includes MA beam parameter information). Based on each of the M beam parameter information groups, the node obtains the beam parameter information and / or CRIs corresponding to the K preferred transmission beams in the beam parameter information group. This results in M ​​preferred beam parameter information groups and / or CRI groups.

[0149] Alternatively, the first communication node can directly predict the preferred beam parameter information group and / or CRI group through a model. Each preferred beam parameter information group includes K preferred beam parameter information items, and each preferred CRI group includes K preferred CRIs. The first communication node performs M second-stage beam scans to determine the optimal transmission beam in each of the M predicted time slots. For the j-th second-stage scan, in time slot T3_j where the pre-configured N+j-th reference signal resource set is located, K reference signal resources are transmitted using the beams corresponding to the K CRIs in the j-th preferred beam parameter information group and / or CRI group, with each reference signal resource corresponding to one transmission beam.

[0150] Correspondingly, the second communication node receives K reference signal resources and performs measurements to obtain K beam parameter information. Then, the second communication node can determine the optimal beam parameter information and the corresponding CRI based on these K beam parameter information. It then transmits the (j+1)th CSI report in time slot T4_j to provide feedback on the optimal beam parameter information and / or the corresponding CRI. The first communication node receives the (j+1)th CSI report, thereby obtaining the optimal beam parameter information and / or the corresponding CRI. Subsequently, in the j-th time slot out of M prediction time slots, scheduling and resource transmission are performed based on the determined optimal beam parameter information and / or the corresponding CRI.

[0151] In one example, the first communication node cannot transmit reference signal resources from the second reference signal resource set in time slot T3_j, thereby preventing the second communication node from sending other CSI reports. Specifically, the first communication node can send a signaling instruction to the second communication node to instruct the terminal not to send other CSI reports, thus preventing the second communication node from performing measurements and feedback corresponding to other CSI reports upon receiving this signaling instruction.

[0152] In another example, when K is 1, for instance, if the second communication node reports only one of the K preferred CRI values, the second communication node will not perform the measurement and feedback corresponding to the (1+j)th CSI report in order to send a CSI report. Alternatively, when K is greater than or equal to 2, the first communication node can transmit the second reference signal resource set in time slot T3_j, and the second communication node can then send a new CSI report.

[0153] In some embodiments, the number of reference signal resources in the second reference signal resource set configured by the first communication node may be greater than K.

[0154] Exemplarily, when the number of reference signal resources in the second reference signal resource set configured by the first communication node is greater than K, the first communication node may determine K reference signal resources from the second reference signal resource set and send them to the second reference signal. For example, the first communication node may determine K reference signal resources with the smallest resource indices, K reference signal resources with the largest reference signal resource indices, or K reference signal resources starting from one of the reference signal resource indices, or K reference signal resources agreed upon by the first communication node and the second communication node, or K equally spaced reference signal resources, etc.

[0155] In some embodiments, the second communication node may feedback a CSI report formed by M times of beam scans in the second stage. That is, the second communication node may form a CSI report and feedback the preferred beam parameter information and / or CRI corresponding to the reference signal resources in the reference signal resource set transmitted through the T3_j time slot, where j = 1,..., M.

[0156] In the embodiments of the present disclosure, T0, T1, T2, T3_j, T4_j are integers, and T1≥T0, T2≥T1, T3_j≥T2, T4_j≥T3_j, T3_k < T3_j, T4_k < T4_j, k < j, j, k = 1,..., M. In addition, the number of reference signal resources MB on each of the above N time slots may be different, and the number K of beam parameter information at each feedback moment may also be different. For example, the j-th time slot has Kj pieces of beam parameter information and / or CRI, and the corresponding number of reference signal resources is also Kj, where j = 1,..., M.

[0157] In some embodiments, beam prediction for the receiving beam may also be performed. For the specific process, refer to Embodiment 4 above and will not be elaborated here.

[0158] In some embodiments, the transmit beam of the above embodiments is replaced with a receive beam, so that the receive beam can be predicted according to a similar method. When scanning / measuring / predicting the receive beam, the repetition parameter of the transmitted reference signal resource set can be set to on, indicating that the reference signal resources in this reference signal resource set use the same transmit beam. Otherwise, it is set to off. In some embodiments, it may also be necessary to consider sending the optimal receive beam for receiving reference signals or other data. Before time slot T1, or after or before each second-stage scan, such as after or before T4_j, j=1…M, the first communication node sends a reference signal resource set, with the repetition parameter set to on, to scan for the optimal receive beam. The second communication node receives and measures the reference signal resources in the reference signal resource set to obtain a set of beam metric parameters, thereby finding the largest beam metric parameter to determine the optimal receive beam for this prediction time slot, and using this receive beam for measurement and reception in subsequent measurements or transmissions of this prediction time slot. The reference signal resources used to measure the received beam can also be configured in the same higher-layer signaling as the aforementioned M+N reference signal resources, or configured at time T0.

[0159] In some embodiments of this disclosure, the content of a second CSI report can be determined from the content of the first CSI report among two adjacent CSI reports in the time domain. Here, the first CSI report is the CSI report with the smaller transmission time slot among two adjacent CSI reports, and the second CSI report is the CSI report with the larger transmission time slot among two adjacent CSI reports.

[0160] For example, the above determination of the content of the second CSI report based on the content of the first CSI report may specifically include at least one of the following:

[0161] The reference signal resources corresponding to the second CSI report can be determined based on the content of the first CSI report. Alternatively, the number of CSI parameters in the second CSI report can be determined based on the content of the first CSI report. Or, the content of the second CSI report can be used to determine whether the content of the second CSI report is null.

[0162] In some embodiments, among three adjacent CSI reports in the time domain, the content of the second CSI report is determined based on the content of the first CSI report, and / or the content of the third CSI report is determined based on the content of the second CSI report. Here, the first CSI report is the CSI report with the smallest transmission time slot among the three adjacent CSI reports, the second CSI report is the CSI report with the middle transmission time slot among the three adjacent CSI reports, and the third CSI report is the CSI report with the largest transmission time slot among the three adjacent CSI reports.

[0163] The process of determining the content of the CSI report can be referred to the above description of determining the content of the second CSI report based on the content of the first CSI report, and will not be repeated here.

[0164] In some embodiments, among L CSI reports that are temporally adjacent, the time interval between the i-th CSI report and the (i+1)-th CSI report is greater than or equal to the sum of a first time interval and a second time interval. The first time interval is the difference between the time of transmitting the first symbol of the uplink physical channel of the i-th CSI report and the time of receiving the first symbol of the first channel state information reference signal resource. The second time interval is the interval between the time of receiving the first symbol of the first channel state information reference signal resource and the time of transmitting the last symbol of the uplink physical channel of the (i+1)-th CSI report. Here, i = 1, ..., L-1. The first and second time intervals are relative to the i-th and (i+1)-th CSI reports; different values ​​of i may result in different first and second time intervals.

[0165] In some embodiments, among two CSI reports that are temporally adjacent in the L CSI reports, the time interval between the first CSI report and the second CSI report is greater than or equal to the sum of the first time interval and the second time interval.

[0166] The first time interval is the difference between the time of sending the first symbol of the uplink physical channel for the first CSI report and the time of receiving the first symbol of the first channel state information reference signal resource, and the second time interval is the interval between the time of receiving the first symbol of the first channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel for the second CSI report.

[0167] Furthermore, the first and second CSI reports mentioned above are relative. In time-domain beamforming, there may be multiple sets of such first and second CSI reports, or second and third CSI reports, etc.

[0168] For example, the first time interval can be the time from the last symbol of the PUCCH or PUSCH to the first communication node decoding the PUCCH or PUSCH. The second time interval can be the time from the first communication node sending the CSI-RS to the terminal measuring the CSI-RS. Furthermore, if the uplink and downlink carrier spacing are different, it may be necessary to calculate the time based on the uplink and downlink carrier spacing.

[0169] For example, the time interval between two CSI reports is greater than twice the first delay Z', or greater than twice the second delay Z.

[0170] In some embodiments, among three CSI reports that are time-adjacent in the L CSI reports, the time interval between the second and third CSI reports is greater than or equal to the sum of the third and fourth time intervals; wherein the third time interval is the difference between the time of sending the first symbol of the uplink physical channel of the second CSI report and the time of receiving the first symbol of the second channel state information reference signal resource, and the fourth time interval is the difference between the time of receiving the first symbol of the second channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel of the third CSI report.

[0171] Furthermore, the second and third CSI reports are relative. In time-domain beamforming, there may be multiple sets of such first and second CSI reports, or second and third CSI reports, etc.

[0172] In some embodiments, the first communication node may also send a first signaling. This first signaling is used to instruct / update / modify parameters of at least one CSI report among the L CSI reports. The first signaling is either MAC CE or DCI.

[0173] Therefore, the second communication node receives the first signaling and can configure, modify, or update the parameters of at least one CSI report among the L CSI reports based on the first signaling.

[0174] In some embodiments, the parameters of the CSI report include at least one of the following parameters: resources for channel measurement, csi-IM-Resources for Interference, carrier parameters, report configuration type, report quality parameters, report frequency domain configuration parameters, channel quality indication configuration parameters, codebook configuration parameters, non-PMI-Port indication, beam prediction indication, and function indication. In some embodiments, it may also include parameters for defining periodic reporting, semi-persistent reporting on PUCCH, semi-persistent reporting on PUSCH, aperiodic reporting, report quality (a set of parameters for defining the reported CSI, such as cri-RI-PMI-CQI, cri-RI-i1, cri-RI-i1-CQI, etc.), and report frequency configuration, such as parameters including CQI format indicator (cqi-Format Indicator), PMI format indicator (pmi-Format Indicator), CSI reporting bandwidth (csi-Reporting Band), CQI table (cqi-Table), etc.

[0175] In some embodiments, the first communication node may also send a second signaling message. The second signaling message is used to instruct / update / modify parameters of at least one of the C reference signal resource sets.

[0176] In some embodiments, the parameters of at least one of the C reference signal resource sets include at least one of the following:

[0177] Reference signal resource list (nzp-CSI-RS-ResourcesList), repetition parameter, aperiodic triggering offset, tracking reference signal information enable (TRS-Info), and second aperiodic triggering offset (aperiodicTriggeringOffset-r16).

[0178] In some embodiments, the first communication node may also send a third signaling message. This third signaling message is used to instruct / update / modify parameters of at least one reference channel resource in the C sets of reference signal resources.

[0179] In some embodiments, the parameters of at least one reference signal resource in the C sets of reference signal resources include at least one of the following:

[0180] Period and Offset, power control offset relative to data, power control offset relative to SS, QCL information of periodic reference signal (qcl-InfoPeriodicCSI-RS), resource mapping, and scrambling ID.

[0181] In some embodiments, the value of at least one parameter in the CSI report can be changed via signaling (e.g., MAC CE or DCI) according to changes in the channel scenario or application needs. Subsequent CSI reporters will use the parameter values ​​in the CSI report changed by signaling to generate CSI reports until new signaling changes the parameters in the CSI report.

[0182] It should be noted that during the spatial prediction of the transmit beam, the spatial prediction of the transmit / receive beam pair, the temporal prediction of the transmit beam, and the temporal prediction of the transmit / receive beam pair, the report parameters can be dynamically modified in multiple CSI reports across different time slots. This avoids the significant latency issue associated with reconfiguring CSI via higher-layer signaling and allows for flexible reporting of CSI information suitable for the current scenario. This improves the flexibility of channel state information reporting, eliminates the need for CSI reconfiguration via higher-layer signaling, and reduces signaling latency.

[0183] In one example, consider the reference signal resource configuration index (RSRI) for channel measurement. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling, which includes at least the RSRI for channel measurement. In some time slot CSI reports, this value is set to "configured." The second communication node can filter the channel measurements obtained from multiple time slots, such as by averaging. As the environment or requirements change, the first communication node can send a signaling (e.g., MAC CE or DCI) instructing the parameter to be changed to "not configured." Upon receiving this signaling, the second communication node, in subsequent CSI reports, will not filter the channel at multiple time points. In other examples, the first and second communication nodes can flexibly modify the time restriction for interference measurements in a similar manner.

[0184] In another example, consider carrier parameters. The first communication node can configure a periodic or semi-persistent CSI reporting configuration via higher-layer signaling, which includes at least the carrier parameter. In some time slots of the CSI report, its value is 0, and the second communication node can obtain the CSI corresponding to carrier 0 and provide feedback. As the environment or requirements change, the carrier is switched, such as cell switching, switching from low frequency to high frequency, or changes in bandwidth. The first communication node can send a signaling instruction (such as MAC CE or DCI) to instruct the parameter to be modified to 1. Thus, after receiving this instruction, the second communication node can measure the CSI corresponding to carrier 1 in subsequent CSI report measurements and provide feedback. Of course, in some examples, it can be modified to other values ​​via signaling, which will not be elaborated here.

[0185] In another example, consider the report configuration type. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling, which includes at least the report configuration type, indicating whether the CSI report is periodic or semi-persistent, etc. In some time slot CSI reports, its value is semiPersistent On PUCCH. The second communication node can measure and obtain the CSI and report it on the PUCCH. As the environment or requirements change, the first communication node can send a signaling (such as MAC CE or DCI) to instruct the parameter to be modified to semiPersistent On PUSCH. Upon receiving this signaling, the second communication node will then report the CSI measured by the terminal on the specified PUSCH during subsequent CSI report measurements. In other examples, the value can be modified similarly via signaling, which will not be elaborated here.

[0186] In another example, let's take the quality parameter of the report as an example. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling, which includes at least the quality parameter of the report, indicating the content included in the CSI report. For example, the CSI feedback may be one or a combination of CRI, RI, PMI, and CQI. In some time-slot CSI reports, its value is cri-RI-PMI-CQI, and the terminal measures and obtains CSI, which includes CRI, RI, PMI, and CQI. As the environment or requirements change, for example, due to increased speed, the closed-loop PMI feedback may no longer be accurate, and it can be changed to an open-loop mode. That is, the first communication node can send a signaling (such as MAC CE or DCI) to instruct the parameter to be modified to cri-RI-i1. Then, after receiving the signaling, the second communication node will measure CRI, RI, and the codebook index i1 of the bandwidth in subsequent CSI report measurements. Of course, in some examples, it can be modified to other values ​​similarly via signaling, which will not be detailed here. In other examples, the values ​​can be similarly modified via signaling, which will not be elaborated here.

[0187] In another example, consider the frequency domain configuration parameters of the report. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling, which includes at least the frequency domain configuration parameters indicating whether the CSI report is wideband or subband. In some time-slot CSI reports, the frequency domain configuration sub-parameter CQI format indicator (cqi-Format Indicator) is set to wideband CQI. The second communication node measures and obtains the CSI, which includes at least the CQI, and this CQI is wideband. As the environment or requirements change, such as needing to track the CQI of each subband more precisely, the first communication node can send a signaling (e.g., MAC CE or DCI) indicating that the frequency domain configuration sub-parameter CQI format indicator (cqi-Format Indicator) is set to subband CQI. Upon receiving this signaling, the second communication node measures the subband CQI in subsequent CSI report measurements. In another example, in CSI reports across certain time slots, the report frequency domain configuration sub-parameter PMI format indicator pmi-FormatIndicator is set to wide band PMI. The second communication node measures and obtains the CSI, which includes at least one PMI, such as i1, i11, i12, etc. As the environment or requirements change, such as needing to track the PMI of each sub-band more precisely, the first communication node can send a signaling (e.g., MAC CE or DCI) indicating that the report frequency domain configuration sub-parameter PMI format indicator pmi-Format Indicator is set to sub-band PMI. Upon receiving this signaling, the second communication node measures the sub-band PMI in subsequent CSI report measurements.

[0188] Alternatively, in some time slots of the CSI report, the sub-parameter of the frequency domain configuration parameter, CSI reporting bandwidth (csi-Reporting Band), is set to BIT[1, 1, 1, 0, 0, 0, 0, 0]. The second communication node performs CSI measurements across eight sub-bands, measuring only the sub-bands with a bit mapping value of 1, such as sub-band 1, sub-band 2, and sub-band 3. As the environment or requirements change, the first communication node can send a signaling (e.g., MAC CE or DCI) indicating that the sub-parameter of the frequency domain configuration parameter, CSI reporting bandwidth (csi-Reporting Band), is set to BIT[1, 1, 1, 1, 1, 1, 0, 0]. Upon receiving this signaling, the second communication node, in subsequent CSI report measurements, will only measure the sub-bands with a bit mapping value of 1, such as sub-band 1, sub-band 2, ..., sub-band 6. In other examples, these values ​​can be similarly modified via signaling, which will not be elaborated here.

[0189] In another example, consider the CQI table. The first communication node can configure a periodic or semi-persistent CSI reporting configuration via higher-level signaling, which includes at least a CQI table to indicate the table used to calculate the CQI. In some time slots of the CSI report, its value is table1, and the second communication node measures and obtains the CSI based on table1. As the environment or requirements change, the first communication node can send a signaling (e.g., MAC CE or DCI) instructing the parameter to be modified to table1. Upon receiving this signaling, the second communication node will then measure and obtain the CSI based on table2 in subsequent CSI reports. In other examples, the value can be modified similarly via signaling, which will not be elaborated here.

[0190] In another example, consider codebook configuration parameters. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling. This configuration includes at least codebook configuration parameters to indicate the codebook configuration when calculating CSI, such as whether the codebook type is type I or type II, codebook rank limitations, and codebook mode. In some time slot CSI reports, the configured codebook mode is type 1, and the second communication node measures and obtains CSI based on type 1. As the environment or requirements change, the first communication node can send a signaling (such as MACCE or DCI) to instruct the parameters to be modified to type 2. Upon receiving this signaling, the second communication node will then measure and obtain CSI based on type 2 in subsequent CSI reports. Of course, in some examples, other values ​​can be modified similarly via signaling, which will not be detailed here. In another example, similarly, the value of non-PMI-Port Indication can be modified via signaling, the value of group-based beam reporting can be modified via signaling, and the value of sub-band size can be modified via signaling.

[0191] In another example, consider the model indicator parameter. The first communication node can configure a periodic or semi-persistent CSI report configuration via higher-layer signaling, which includes at least the model indicator parameter to indicate the model used when calculating CSI. In some time slot CSI reports, the configured model indicator is 1, and the second communication node obtains the CSI based on the model corresponding to model indicator 1. As the environment or requirements change, the first communication node can send a signaling (e.g., MAC CE or DCI) instructing the parameter to be modified to 2. Upon receiving this signaling, the second communication node will then obtain the CSI based on the model corresponding to model indicator 1 in subsequent CSI report measurements. Of course, in some examples, it can be similarly modified to other values ​​via signaling, which will not be detailed here. In other embodiments, similarly, the value of the non-PMI port indicator function can also be modified via signaling, which will not be elaborated here.

[0192] In some embodiments, when the L CSI reports are non-periodic CSI reports, the first communication node may also send a fourth signaling message to activate the L CSI reports, wherein the fourth signaling message is a physical layer signaling message.

[0193] In some embodiments, the CSI report configuration corresponding to the L CSI reports includes at least L CSI report time slot offsets. The L CSI report time slot offsets satisfy a first condition, namely, the offset of any two CSI reports is greater than or equal to the sum of the first time and the second time corresponding to the two CSI reports, or greater than or equal to 2 * first delay Z', or greater than or equal to 2 * first delay Z.

[0194] In some embodiments, the sets of C reference signal resources corresponding to the L CSI reports correspond to at least C reference signal resource time slot offsets, and the C reference signal resource time slot offsets satisfy a second condition. That is, the difference between the offsets of any two reference signal resources is greater than or equal to a configured value C0, or greater than the sum of the first time and the second time corresponding to the two CSI reports, or greater than or equal to 2 * first delay Z', or greater than or equal to 2 * first delay Z.

[0195] This disclosure provides a transmission method for configuring Channel State Information (CSI) reports, which can simultaneously configure L CSI reports, and the L CSI reports are correlated. Furthermore, the configuration of some parameters of at least one of the L CSI reports can be modified through MAC CE and / or physical layer signaling, improving the flexibility of channel state information reporting, eliminating the need to reconfigure CSI reports through higher-layer signaling, and reducing signaling latency.

[0196] like Figure 3 As shown, this disclosure provides another method for configuring channel state information reports, the method comprising the following steps:

[0197] S201. Receive CSI report configuration. This CSI report configuration includes parameter information for L CSI reports, and the L CSI reports correspond to C sets of reference signal resources.

[0198] Where L and C are both positive integers greater than 1.

[0199] In some embodiments, a CSI report configuration may include parameter information for the L CSI reports mentioned above. Alternatively, a CSI report configuration may also include L CSI reports corresponding to C sets of reference signal resources.

[0200] It should be noted that, in the processes of spatial prediction of the transmit beam, spatial prediction of the transmit / receive beam pair, temporal prediction of the transmit beam, and temporal prediction of the transmit / receive beam pair, to improve prediction accuracy, at least K optimal beams can be predicted in each prediction time slot. Here, K is an integer greater than or equal to 1. The process of transmitting and measuring these K predicted beams or beam pairs to finally determine the optimal transmit beam or beam pair includes multiple CSI measurement and feedback processes. It is possible to configure the measurement and feedback of another CSI report via signaling after the measurement and feedback of one CSI report is completed. However, this usually results in a significant delay. Therefore, in the above embodiment, the first communication node can configure parameter information including the aforementioned L CSI reports in one CSI report. This improves the flexibility of channel state information reporting, eliminates the need to reconfigure CSI via higher-layer signaling, and thus reduces signaling delay and / or signaling overhead.

[0201] In some embodiments, the L CSI reports correspond to C reference signal resources. This includes, but is not limited to, scenarios where a reference signal resource set includes only one CSI resource. In some embodiments, the L CSI reports correspond to C reference signal resource configurations. This includes, but is not limited to, scenarios where a reference signal resource configuration includes only one CSI resource set.

[0202] In some embodiments, the L CSI reports mentioned above are periodic CSI reports or semi-persistent CSI reports. Alternatively, the L CSI reports mentioned above can also be aperiodic CSI reports. For aperiodic CSI reports, the first communication node can configure L CSI reports at a higher layer and trigger or activate them once via a physical layer signaling.

[0203] In some embodiments, the CSI report configuration also includes configuration information for C sets of reference signals. In other instances, the configuration information for the C sets of reference signals is provided through a different higher-layer signaling configuration than the CSI report configuration.

[0204] A set of reference signal resources includes at least one reference signal resource. In some embodiments, a reference signal resource may include one or more CSI-RS resources and / or one or more SSB resources, etc.

[0205] In one possible implementation, each of the L CSI reports corresponds to a set of reference signal resources.

[0206] In another possible implementation, one of the L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports in the L CSI reports corresponds to one reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L = M + 1, C = N + M.

[0207] In another possible implementation, one of the L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports in the L CSI reports corresponds to one reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, C = N + 2*M.

[0208] In some embodiments, the second communication node may generate a CSI report based on the received CSI report configuration and send the generated CSI report to the first communication node.

[0209] In some embodiments, the parameters of the CSI report include at least one of the following: the reference signal resource configuration index corresponding to the channel measurement, the reference signal resource configuration index corresponding to the interference, carrier parameters, report configuration type, report quality parameters, report frequency domain configuration parameters, channel quality indication configuration parameters, codebook configuration parameters, non-PMI port indication, beam prediction indication, and function indication. In some embodiments, it may also include parameters for defining periodic reporting, semi-persistent reporting on the PUCCH, semi-persistent reporting on the PUSCH, aperiodic reporting, and report quality, such as CQI format indication, PMI format indication, CSI report bandwidth, CQI table, etc.

[0210] In some embodiments, the second communication node may receive a first signaling sent by the first communication node, wherein the first signaling is used to indicate parameters of at least one CSI report among L CSI reports. The first signaling is MAC CE or DCI.

[0211] In some embodiments, the second communication node may also receive a second signaling sent by the first communication node. The second signaling is used to indicate parameters of at least one of the C reference signal resource sets.

[0212] In some embodiments, the second communication node may also receive a third signaling sent by the first communication node. The third signaling is used to indicate parameters of at least one reference channel resource of the C sets of reference signal resources.

[0213] In some embodiments, the second communication node may also receive a fourth signaling message sent by the first communication node, the fourth signaling message being used to activate L CSI reports, wherein the fourth signaling message is physical layer signaling. In this case, the aforementioned L CSI reports are aperiodic CSI reports.

[0214] In some embodiments, the value of at least one parameter in the CSI report can be changed via signaling (e.g., MAC CE or DCI) according to changes in the channel scenario or application needs. Subsequent CSI reporters will use the parameter values ​​in the CSI report changed by signaling to generate CSI reports until new signaling changes the parameters in the CSI report.

[0215] It should be noted that during the spatial prediction of the transmit beam, the spatial prediction of the transmit / receive beam pair, the temporal prediction of the transmit beam, and the temporal prediction of the transmit / receive beam pair, the report parameters can be dynamically modified in multiple CSI reports across different time slots. This avoids the significant latency issue associated with reconfiguring CSI via higher-layer signaling and allows for flexible reporting of CSI information suitable for the current scenario. This improves the flexibility of channel state information reporting, eliminates the need for CSI reconfiguration via higher-layer signaling, and reduces signaling latency.

[0216] For a detailed explanation of step S201, please refer to the relevant descriptions in steps S101-S102 above, which will not be repeated here.

[0217] The above primarily describes the solution provided in this disclosure from the perspective of interaction between various communication nodes. It is understood that each communication node, in order to achieve the above functions, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, the present invention can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0218] Figure 4 The diagram shown is a schematic representation of a communication device provided in an embodiment of this disclosure. Figure 4 As shown, the communication device 40 includes an acquisition module 401 and a transmission module 402.

[0219] In some embodiments, the acquisition module 401 is used to acquire Channel State Information (CSI) report configuration, which includes parameter information of L CSI reports, where the L CSI reports correspond to C reference signal resource sets, and L and C are both positive integers greater than 1. The transmission module 402 is used to transmit the CSI report configuration.

[0220] In some embodiments, the CSI report configuration also includes configuration information for C sets of reference signal resources.

[0221] In some embodiments, L CSI reports and / or C reference signal resource sets are configured before the first time slot; or, the configuration information of the CSI reports corresponding to the L CSI reports and / or the configuration information of the C reference signal resource sets is sent before the first time slot.

[0222] The first time slot satisfies any one of the following:

[0223] The first time slot is the smallest time slot for sending L CSI reports;

[0224] The first time slot is the time slot for sending the first CSI report out of L CSI reports;

[0225] The first time slot is the smallest time slot for transmitting the reference signal resources in the set of C reference signal resources;

[0226] The first time slot is the time slot for transmitting the first reference signal resource in the set of C reference signal resources.

[0227] In some embodiments, the L CSI reports are periodic CSI reports or semi-continuous CSI reports.

[0228] In some embodiments, each of the L CSI reports corresponds to a set of reference signal resources.

[0229] In some embodiments, one CSI report out of L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports out of the L CSI reports corresponds to one reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L = M + 1, C = N + M. Alternatively, one CSI report out of L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports out of the L CSI reports corresponds to one reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, C = N + 2*M.

[0230] In some embodiments, the sending module 402 is further configured to send a first signaling, the first signaling being used to indicate parameters of at least one CSI report among the L CSI reports.

[0231] In some embodiments, the first signaling is MAC CE or DCI.

[0232] In some embodiments, the parameters of the CSI report include at least one of the following parameters: reference signal resource configuration index corresponding to the channel measurement, reference signal resource configuration index corresponding to the interference, carrier parameters, report configuration type, report quality parameters, report frequency domain configuration parameters, channel quality indication configuration parameters, codebook configuration parameters, non-PMI port indication, beam prediction indication, and function indication.

[0233] In some embodiments, the transmitting module 402 is further configured to transmit a second signaling, the second signaling being used to indicate parameters of at least one of the C reference signal resource sets.

[0234] In some embodiments, the parameters of at least one of the C reference signal resource sets include at least one of the following: a reference signal resource list, a repetition parameter, an aperiodic trigger bias, a tracking reference signal information enable, and a second aperiodic trigger bias.

[0235] In some embodiments, the transmitting module 402 is further configured to transmit a third signaling, the third signaling being used to indicate parameters of at least one reference channel resource of the C sets of reference signal resources.

[0236] In some embodiments, the parameters of at least one reference signal resource in the C sets of reference signal resources include at least one of the following:

[0237] Period and bias, power control bias relative to data, power control bias relative to SS, QCL information of period reference signal, resource mapping, scrambling code identifier.

[0238] In some embodiments, among two CSI reports that are temporally adjacent in the L CSI reports, the time interval between the first CSI report and the second CSI report is greater than or equal to the sum of a first time interval and a second time interval; wherein, the first time interval is the difference between the time of sending the first symbol of the uplink physical channel of the first CSI report and the time of receiving the first symbol of the first channel state information reference signal resource, and the second time interval is the interval between the time of receiving the first symbol of the first channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel of the second CSI report.

[0239] In some embodiments, among three CSI reports that are time-adjacent in the L CSI reports, the time interval between the second and third CSI reports is greater than or equal to the sum of the third and fourth time intervals; wherein the third time interval is the difference between the time of sending the first symbol of the uplink physical channel of the second CSI report and the time of receiving the first symbol of the second channel state information reference signal resource, and the fourth time interval is the difference between the time of receiving the first symbol of the second channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel of the third CSI report.

[0240] In some embodiments, the content of a second CSI report is determined based on the content of the first CSI report in two adjacent CSI reports in the time domain.

[0241] In some embodiments, determining the content of a second CSI report based on the content of a first CSI report includes at least one of the following: determining the reference signal resource corresponding to the second CSI report based on the content of the first CSI report; or determining the number of CSI parameters in the second CSI report based on the content of the first CSI report; or determining whether the content of the second CSI report is null based on the content of the first CSI report.

[0242] In some embodiments, among three CSI reports that are adjacent in the time domain, the content of the second CSI report is determined based on the content of the first CSI report, and / or the content of the third CSI report is determined based on the content of the second CSI report.

[0243] In some embodiments, the L CSI reports are non-periodic CSI reports. The sending module 402 is further configured to send a fourth signaling, which is used to activate the L CSI reports, wherein the fourth signaling is physical layer signaling.

[0244] In some embodiments, the CSI report configuration further includes L CSI report time slot offsets, wherein the L CSI report time slot offsets satisfy a first condition.

[0245] In some embodiments, the CSI report configuration further includes C reference signal resource time slot offsets, wherein the C reference signal resource time slot offsets satisfy a second condition.

[0246] For a more detailed description of the acquisition module 401 and the sending module 402, as well as a more detailed description of their respective technical features and beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0247] It should be noted that, Figure 4 Modules in this context can also be called units; for example, a transmitting module can be called a transmitting unit. Additionally, in... Figure 4 In the embodiments shown, the names of the modules may not be the same as those shown in the figure. For example, the sending module may also be called the communication module, and the acquiring module may also be called the communication module.

[0248] Figure 4 If the various units or modules in the present disclosure are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0249] In the case where the functions of the integrated modules described above are implemented in hardware, this disclosure provides a schematic diagram of the structure of a communication device. For example... Figure 5 As shown, the communication device 50 includes: a processor 502, a communication interface 503, and a bus 504. Optionally, the communication device 50 may also include a memory 501.

[0250] Processor 502 may implement or execute various exemplary logic blocks, modules, and circuits described in connection with this disclosure. Processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in connection with this disclosure. Processor 502 may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0251] Communication interface 503 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0252] The memory 501 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0253] As one possible implementation, the memory 501 can exist independently of the processor 502. The memory 501 can be connected to the processor 502 via a bus 504 and is used to store instructions or program code. When the processor 502 calls and executes the instructions or program code stored in the memory 501, it can implement the information processing method determination method provided in this embodiment of the disclosure.

[0254] In another possible implementation, the memory 501 can also be integrated with the processor 502.

[0255] Bus 504 can be an extended industry standard architecture (EISA) bus, etc. Bus 504 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0256] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment or device can be divided into different functional modules to complete all or part of the functions described above.

[0257] This disclosure also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The computer-readable storage medium can also be an external storage device for the above-described device or apparatus, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the above-described device or apparatus. Further, the computer-readable storage medium can include both internal storage units and external storage devices of the above-described device or apparatus. The computer-readable storage medium is used to store the above-described computer program and other programs and data required by the above-described device or apparatus. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0258] This disclosure also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the methods provided in the above embodiments.

[0259] Although this disclosure has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, the word "comprising" does not exclude other components or steps.

[0260] The word "one" or "an" does not preclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may describe certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0261] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

[0262] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A transmission method for configuring channel state information reports, characterized in that, The method includes: The Channel State Information (CSI) report configuration is obtained. The CSI report configuration includes parameter information for L CSI reports. The L CSI reports correspond to C reference signal resource sets, where L and C are both positive integers greater than 1. In two adjacent CSI reports in the time domain, the content of the second CSI report is determined based on the content of the first CSI report. Send the CSI report configuration.

2. The method according to claim 1, characterized in that, The CSI report configuration also includes configuration information for the C sets of reference signal resources.

3. The method according to claim 1, characterized in that, Configure the L CSI reports and / or the C reference signal resource sets before the first time slot; or, send the CSI report configuration information corresponding to the L CSI reports and / or the configuration information of the C reference signal resource sets before the first time slot. Wherein, the first time slot satisfies any one of the following: The first time slot is the smallest time slot for sending the L CSI reports; The first time slot is the time slot for sending the first CSI report among the L CSI reports; The first time slot is the smallest time slot for transmitting the reference signal resources in the C sets of reference signal resources; The first time slot is the time slot for transmitting the first reference signal resource in the set of C reference signal resources.

4. The method according to claim 1, characterized in that, The L CSI reports are either periodic CSI reports or semi-continuous CSI reports.

5. The method according to claim 1, characterized in that, Each of the L CSI reports corresponds to a set of reference signal resources.

6. The method according to claim 1, characterized in that, One of the L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports in the L CSI reports corresponds to one reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = M + 1, C = N + M. or, One of the L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports in the L CSI reports corresponds to one reference signal resource set; N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, C = N + 2*M.

7. The method according to claim 1, characterized in that, The method further includes: Send a first signaling message, which is used to indicate parameters of at least one CSI report among the L CSI reports.

8. The method according to claim 7, characterized in that, The first signaling is MAC CE or DCI.

9. The method according to claim 7, characterized in that, The parameters of the CSI report include at least one of the following: Reference signal resource configuration index for channel measurement, reference signal resource configuration index for interference, carrier parameters, report configuration type, report quality parameters, report frequency domain configuration parameters, channel quality indication configuration parameters, codebook configuration parameters, non-PMI port indication, beam prediction indication, and function indication.

10. The method according to claim 1, characterized in that, The method further includes: Send a second signaling message, the second signaling message being used to indicate parameters of at least one of the C reference signal resource sets.

11. The method according to claim 10, characterized in that, The parameters of at least one of the C reference signal resource sets include at least one of the following: Reference signal resource list, repetition parameters, aperiodic trigger bias, tracking reference signal information enable, second aperiodic trigger bias.

12. The method according to claim 1, characterized in that, The method further includes: A third signaling is sent, the third signaling being used to indicate parameters of at least one reference channel resource of the C sets of reference signal resources.

13. The method according to claim 12, characterized in that, The parameters of at least one of the reference signal resources in the C sets of reference signal resources include at least one of the following: Period and bias, power control bias relative to data, power control bias relative to SS, QCL information of period reference signal, resource mapping, scrambling code identifier.

14. The method according to claim 1, characterized in that, The two CSI reports that are adjacent in the time domain are such that the time interval between the first CSI report and the second CSI report is greater than or equal to the sum of the first time interval and the second time interval; wherein, the first time interval is the difference between the time of sending the first symbol of the uplink physical channel of the first CSI report and the time of receiving the first symbol of the first channel state information reference signal resource, and the second time interval is the interval between the time of receiving the first symbol of the first channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel of the second CSI report.

15. The method according to claim 1, characterized in that, In the L CSI reports, for three CSI reports that are adjacent in the time domain, the time interval between the second and third CSI reports is greater than or equal to the sum of the third and fourth time intervals; wherein, the third time interval is the difference between the time of sending the first symbol of the uplink physical channel of the second CSI report and the time of receiving the first symbol of the second channel state information reference signal resource, and the fourth time interval is the difference between the time of receiving the first symbol of the second channel state information reference signal resource and the time of sending the last symbol of the uplink physical channel of the third CSI report.

16. The method according to claim 1, characterized in that, Determining the content of the second CSI report based on the content of the first CSI report includes at least one of the following: The reference signal resource corresponding to the second CSI report is determined based on the content of the first CSI report; or... The number of CSI parameters in the second CSI report is determined based on the content of the first CSI report; or, Determine whether the content of the second CSI report is null based on the content of the first CSI report.

17. The method according to claim 1, characterized in that, In three adjacent CSI reports in the time domain, the content of the second CSI report is determined based on the content of the first CSI report, and / or the content of the third CSI report is determined based on the content of the second CSI report.

18. The method according to claim 1, characterized in that, The L CSI reports are non-periodic CSI reports; the method further includes: Send a fourth signaling message, which is used to activate the L CSI reports, wherein the fourth signaling message is a physical layer signaling message.

19. The method according to claim 18, characterized in that, The CSI report configuration also includes L CSI report time slot offsets, and the L CSI report time slot offsets satisfy the first condition.

20. The method according to claim 18, characterized in that, The CSI report configuration also includes C reference signal resource time slot offsets, which satisfy the second condition.

21. A communication device, characterized in that, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1 to 20.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 20.

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