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

Abstract

Provided in the embodiments of the present disclosure are a transmission method and apparatus for a channel state information (CSI) report configuration, and a storage medium. The transmission method for CSI report configuration comprises: acquiring a CSI report configuration, wherein the CSI report configuration comprises parameter information of L CSI reports, the L CSI reports corresponding to C reference signal resource sets, and both L and C being positive integers greater than 1; and transmitting the CSI report configuration.

Description

Transmission method, device and storage medium for channel state information report configuration

[0001] This application claims priority to Chinese patent application No. 202311286337.9 filed on September 28, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to a transmission method, device, and storage medium for channel state information report configuration. Background Art

[0003] Wireless communication systems are widely used in our daily lives and production. For example, they are used for video transmission, voice transmission, positioning, machine-to-machine communication in the industrial sector, device-to-device communication, and vehicle-to-device communication in the Internet of Vehicles (IoV). Channel state information (CSI) is crucial for improving the performance of wireless communication systems. Terminals send CSI reports to network devices. After receiving these reports, the network devices obtain the CSI and use it for scheduling and data transmission.

[0004] Summary of the Invention

[0005] In a first aspect, the present disclosure provides a method for transmitting a channel state information report configuration, which includes: obtaining a channel state information CSI report configuration, where the CSI report configuration 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; and sending the CSI report configuration.

[0006] In second aspect, the present disclosure provides a method for transmitting a channel state information report configuration, which includes: receiving a CSI report configuration, the CSI report configuration including parameter information of L CSI reports, the L CSI reports corresponding to C reference signal resource sets, and L and C are both positive integers greater than 1.

[0007] In a third aspect, the present disclosure provides a communication device, which includes: an acquisition module for acquiring a channel state information CSI report configuration, the CSI report configuration including parameter information of L CSI reports, the L CSI reports corresponding to C reference signal resource sets, and L and C are both positive integers greater than 1; a sending module for sending the CSI report configuration.

[0008] In a fourth aspect, the present disclosure provides a communication device, which includes: a receiving module for receiving a CSI report configuration, the CSI report configuration including parameter information of L CSI reports, the L CSI reports corresponding to C reference signal resource sets, and L and C are both positive integers greater than 1.

[0009] In a fifth aspect, the present disclosure provides a communication device, which includes: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements any method provided in the first or second aspect above.

[0010] In a sixth aspect, the present disclosure provides a computer-readable storage medium storing computer instructions, which, when executed on a computer, enable the computer to execute any of the methods provided in the first or second aspect.

[0011] In a seventh aspect, the present disclosure provides a computer program product comprising computer instructions, which, when executed on a computer, enables the computer to execute any one of the methods provided in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0013] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0014] FIG2 is a flowchart of a method for transmitting a channel state information report configuration according to an embodiment of the present disclosure.

[0015] FIG3 is a flowchart of another method for transmitting a channel state information report configuration according to an embodiment of the present disclosure.

[0016] FIG4 is a schematic diagram showing the composition of a communication device according to an embodiment of the present disclosure.

[0017] FIG5 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0019] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: only A, only B, and A and B. In addition, "at least one" means one or more, and "a plurality" means two or more. Words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

[0020] It should be noted that, in this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0021] Due to factors such as user movement, switching of communication scenarios, switching of cells, and obstacles in the environment, the channel environment will change over time, so the channel state information may also change accordingly. For different channel environments and different transmission requirements, some terminals need to report different forms of channel state information as needed in some time slots, and some terminals need to cooperate with CSI reports in multiple different time slots to jointly complete the content of a report. To address these problems, some technologies require a new high-layer signaling to update the parameters of the CSI report configuration. This will result in a large signaling overhead and / or a large signaling delay. The technical solution provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, a new radio (NR) mobile communication network using the fifth generation mobile communication technology (5G), a future mobile communication network (including but not limited to various sixth generation mobile communication technologies (6G)) or a variety of communication convergence systems, etc., and the embodiments of the present disclosure are not limited to this.

[0022] 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 the present disclosure may include network side devices (for example, including but not limited to base stations) and receiving side devices (for example, including but not limited to terminals). And it should be understood that, in this example, in the downlink, the first communication node (also referred to as the first communication node device) may be a base station side device, and the second communication node (also referred to as the second communication node device) may be a terminal side device. Of course, in the uplink, the first communication node may also be a terminal side device, and the second communication node may also be a base station side device. In the communication between two communication nodes that are devices, the first communication node and the second communication node may both be base stations or terminals. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0023] Exemplarily, taking the network side device as a base station and the receiving side device as a terminal as an example, FIG1 shows a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , 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). Multiple base stations and multiple terminals can be connected in communication. A base station can provide network services to a terminal in one cell, or it can provide network services to terminals in multiple cells at the same time.

[0024] In some embodiments, the base station may be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), 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, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network-side devices such as primary cells and coordinated cells (secondary cells).

[0025] 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 the water (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons, and satellites, etc.). The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as 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 the embodiments of the present disclosure are not limited to this.

[0026] In some embodiments, high-layer signaling includes, but is not limited to, radio resource control (RRC), media access control element (MAC CE), and other signaling other than physical layer signaling, such as LTE Positioning Protocol (LPP) high-layer signaling, NR Positioning Protocol A (NRPPa) high-layer signaling, LTE Positioning Protocol A (LPPa) high-layer signaling, and 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).

[0027] In some embodiments, the indicator of a parameter may also be referred to as an index or identifier (ID), and the indication, identifier and index are equivalent concepts. For example, the resource identifier of a wireless system may also be referred to as a resource indication or a resource index. The resource index of a wireless system includes, but is not limited to, one of the following: an index corresponding to a reference signal resource, a reference signal resource group, a reference signal resource configuration, a channel state information (CSI) report, a CSI report set, a terminal, a base station, a panel, a neural network, a sub-neural network, a neural network layer, a precoding matrix, a beam, a transmission mode, a sending mode, a receiving mode, a module, a model, a functional module, a function, etc. The base station may indicate the identifier of one or a group of resources to the terminal through various high-layer signaling or physical layer signaling. The terminal may also feed back the identifier of one or a group of resources to the base station through high-layer signaling and / or physical layer signaling.

[0028] In some embodiments, a time instance refers to a time period, such as a time slot. A time slot may be a time slot or a mini slot. A time slot or a mini slot includes at least one symbol. A symbol refers to a time unit in 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, orthogonal frequency division multiple access (OFDMA) symbol, etc. In some embodiments or examples, time slots are used as examples, which can be replaced by actual examples.

[0029] In some embodiments, transmitting includes sending or receiving, such as sending data or signals, or receiving data or signals.

[0030] In some embodiments, in order to calculate channel state information or perform channel estimation, mobility management, positioning, etc., a base station or terminal needs to send a reference signal (RS). Reference signals include, but are not limited to, a channel-state information reference signal (CSI-RS), which includes zero-power CSI-RS (ZP CSI-RS) and non-zero-power CSI-RS (NZP CSI-RS), a channel-state information-interference measurement signal (CSI-IM), a sounding reference signal (SRS), a synchronization signal block (SSB), a physical broadcast channel (PBCH), and a synchronization signal block / physical broadcast channel (SSB / PBCH). NZP CSI-RS can be used to measure channels or interference, CSI-RS can be used for tracking and can be called a tracking reference signal (TRS), while CSI-IM is generally used to measure interference, and SRS is used to measure uplink channels. In addition, the resource element (RE) set included in the time-frequency resources used to transmit reference signals is called a reference signal resource, such as CSI-RS resource, SRS resource, CSI-IM resource, and SSB resource. In this article, SSB includes synchronization signal blocks and / or physical broadcast channels.

[0031] In some embodiments, in order to save signaling overhead, etc., multiple reference signal resources may be divided into multiple sets (such as CSI-RS resource set, CSI-IM resource set, SRS resource set). The reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets can all come from the same reference signal resource setting (such as CSI-RS resource setting, SRS resource setting, CSI-RS resource setting may be merged with CSI-IM resource setting, both referred to as CSI-RS resource setting) to configure parameter information.

[0032] In some embodiments, the base station configures measurement resource information, which is used to obtain various measurement parameters such as channel state information. The measurement resource information includes C N Channel measurement resource (CMR) information and / or C M Interference measurement resource (IMR) information, C N and C M Is a positive integer. The base station configures the measurement resource information in a reporting configuration (report config) or a reporting setting (reporting setting). In some examples, a channel measurement resource information 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, and an interference measurement resource information 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 includes at least one channel reference signal resource set, such as at least one CSI-RS resource set or at least one SRS resource set, and an interference measurement resource information includes at least one interference reference signal resource set, such as at least one CSI-IM resource set. In some examples, a channel measurement resource information includes at least one channel reference signal resource, such as at least one CSI-RS resource or at least one SRS resource, and an interference measurement resource information includes at least one interference reference signal resource, such as at least one CSI-IM resource.

[0033] 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, a spatial receive parameter, a transmit-end precoding, a receive-end precoding, an antenna port antenna weight vector, an antenna weight matrix, etc. The beam index can be replaced with a resource index (such as a reference signal resource index) because the beam can be bound to resources in at least one of the time domain, frequency domain, and code domain for transmission. The beam can also be a transmission (transmission / reception) mode, where the transmission mode can include spatial division multiplexing, frequency / time domain diversity, beamforming, etc. In addition, the base station can perform quasi co-location (QCL) configuration on two reference signals and inform the user end to describe the channel characteristics. The parameters involved in quasi-co-location here include at least: Doppler spread, Doppler shift, delay spread, average delay, average gain and spatial parameter (Spatial Rx parameter, or Spatial parameter). Spatial parameters may include spatial reception parameters, angle information, spatial correlation parameters of the receiving beam, average delay, and correlation parameters of the time-frequency channel response (including phase information). The 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 departure (AOD), and the departure angle includes the zenith angle of departure (ZOD) and the azimuth angle of departure (AOA). The spatial filtering can be at least one of the following: a Discrete Fourier Transform (DFT) vector, a precoding vector, a DFT matrix, a precoding matrix, a vector formed by a linear combination of multiple DFTs, or a vector formed by a linear combination of multiple precoding vectors. In some embodiments, the terms "vector" and "vector" are interchangeable. In some embodiments, a beam pair comprises a combination of a transmit beam and a receive beam.

[0034] In some embodiments, the beam direction or beam angle may include 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. When the angle information includes an azimuth and an elevation angle, the angle of arrival includes an arrival zenith angle and an arrival azimuth angle, and the angle of departure includes a departure zenith angle and a departure azimuth angle.

[0035] In some embodiments, the 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 a processing result). The processing result includes one or more of the above-mentioned channel state information, or one or more of the beam parameter information, or angle information, position information (such as coordinates), and position parameter information. For example, the 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), Rx-Tx time difference, Tx-Rx time difference, reference signal received power, and multipath information. The Rx-Tx time difference includes the gNB Rx-Tx time difference and the UE Rx-Tx time difference. When the angle information includes the azimuth and elevation angles, the arrival angle includes the zenith angle of arrival (ZOA) and the azimuth angle of departure (AOD), and the departure angle includes the zenith angle of departure (ZOD) and the azimuth angle of departure (AOD). departure, AOA); increase the number of paths, increase the relative delay of the paths, increase the multipath power, increase the time domain response of the multipath, and increase the real and imaginary parts of the time domain response of the multipath.

[0036] 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 pieces of channel state information or one or more pieces of beam parameter information.

[0037] In some embodiments, the information processing method can be a traditional information processing method or various advanced information processing methods, including but 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. In some examples, the information processing method is implemented through an artificial intelligence network (also known as a neural network, a neural network model, or a model).

[0038] In some embodiments, artificial intelligence (AI) includes self-learning devices, components, software, modules, models, functional modules, functional functions, etc. such as machine learning (ML), deep learning, reinforcement learning, transfer learning, deep reinforcement learning, and meta-learning. In some embodiments, artificial intelligence is implemented through an artificial intelligence network (or neural network). A neural network includes multiple layers, each layer including at least one node. In one example, a 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 a fully connected layer, a dense layer, a convolutional layer, a transposed convolutional layer, a direct connection layer, an activation function, a normalization layer, and a pooling layer. 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), a recurrent neural network (RNN), etc. The artificial intelligence network can be implemented through a model, which may include, but is not limited to, a model based on a neural network. A neural network model includes a neural network model structure and / or neural network model parameters. The neural network model structure can be referred to as the model structure, and the neural network model parameters can be referred to as the network parameters or model parameters. Based on the model structure, the network architecture such as the number of layers of the neural network, the size of each layer, the activation function, the connection status, the convolution kernel and the size convolution step, the convolution type (such as 1D convolution, 2D convolution, 3D convolution, hollow convolution, transposed convolution, separable convolution, grouped convolution, extended convolution, etc.) can be determined, and the network parameters are the weights and / or biases corresponding to each layer of the network in the neural network model and their values. In addition, a model structure can correspond to multiple sets of different neural network model parameter values ​​to adapt to different scenarios. Furthermore, the neural network model parameters can be obtained through online training or offline training, for example, by inputting at least one sample and training the neural network model to obtain the neural network model parameters.

[0039] Exemplarily, 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. In addition, multiple samples can constitute a data set. In one example, a sample includes one feature and one label, such as a sample in supervised learning. In another example, a sample has only one feature and no label, such as a sample in unsupervised learning. In one example, a sample has multiple features and one label, such as a sample in a network model of supervised learning with multiple inputs and a single output. In another example, a sample includes one feature and multiple labels, such as a sample in a network model of supervised learning with single input and multiple output. In some embodiments, the feature of the sample can be an array, and the label is also an array. The array can be a vector or 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.

[0040] In one example, the elements in the array corresponding to the label or feature need to be normalized to facilitate faster convergence of the network model. Normalization refers to normalizing the values ​​of the elements in an array to a value 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. In one example, the elements in the array can be divided by the number with the largest absolute value among the elements in the array to achieve normalization. In another example, the elements in the array can be divided by the variance of the elements in the array to achieve normalization. In one example, the elements in the array can be divided by a fixed value (such as the maximum value of all elements in all samples) to achieve normalization. In another example, the elements in the array can be divided by a statistical value (such as the statistical variance of all elements in all samples) to achieve normalization. For index values, such as beam index, CRI, SSBRI, etc., normalization can be achieved through one-hot encoding.

[0041] In some embodiments, a model refers to a data flow between the original input of a sample and the output target through multiple linear or nonlinear components. The above-mentioned 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 mapping and nonlinear mapping) to output information. In some embodiments, each model corresponds to a model indicator (Model ID) or a model identity (Model ID). In some embodiments, the model identity may also have one of the following other equivalent names or concepts: model index, first identifier, functional identifier, model indication, etc.

[0042] Exemplarily, a model includes a model structure and model parameters. For example, if the model is a neural network model, the neural network model includes a neural network model structure and neural network model parameters. The neural network model structure and the neural network model parameters are used to describe the structure of the neural network and the parameter values ​​of the neural network, respectively. One neural network model structure can correspond to multiple neural network model parameters, that is, the neural network model structure can be the same, but the corresponding neural network model parameter values ​​can be different.

[0043] In some examples, a communication node may send a functionality or a functionality index to another communication node to inform the other communication node that it can process information using the information processing method corresponding to the functionality index. Functions may also be referred to as functional modules, functional functions, functional mappings, functional descriptions, etc., which are used to describe the characteristics or types of information processing methods. The types of information processing methods may include multiple types, such as information processing methods for positioning, beam management, CSI prediction, beam prediction, channel estimation, etc., and the characteristics of information processing methods include but are not limited to descriptions of scenarios adapted by the function, descriptions of input parameters, descriptions of output parameters, and types of measurement parameters included in the output results. A function corresponds to one or more information processing methods, each of which may be implemented using one or more models, or a function may be implemented using one or more models, or a function may be implemented using information processing methods outside of one or more models.

[0044] In some embodiments, especially in high-frequency transmission, due to the high carrier frequency and large path loss, beam forming is required to concentrate the energy in the direction of the terminal for propagation, so beam management is required. Beam management includes but is not limited to beam scanning, beam tracking, and beam recovery. The core problem that needs to be solved is how to obtain accurate beam pairs with the lowest possible control overhead. Beam scanning includes transmitting end beam scanning and / or receiving end beam scanning. In order to reduce the overhead of beam scanning, two-stage scanning can be performed. In some embodiments, beam training may include first-stage, second-stage, and third-stage training. In the first stage, the transmit beam and the receive beam are scanned simultaneously. In the second stage of beam scanning, a receive beam can be fixed and different transmit beams can be scanned. The third stage is to fix a transmit beam and scan different receive beams. In one example, for example, by sending N T beams, fixed reception, repetition parameter repetition value is off, and then measure N of them TThe L1-RSRP or L1-SINR corresponding to the beams is selected to report the beam parameter information corresponding to L beams. In an example, by sending 1 beam, N R The receiving beam receives, the repetition parameter is set to on, and then N of them are measured R The L1-RSRP or L1-SINR corresponding to the beams is selected to report the beam parameter information corresponding to the L beams, or if it is not reported, the terminal retains the beam parameter information corresponding to the L beams, such as the optimal L receiving beam indexes and other information. R and N T When both are large, the reference signal overhead corresponding to the beam scanning is very large. Here, N R 、N T is a positive integer. Advanced beam prediction techniques can reduce reference signal overhead during beam scanning. Advanced techniques may include AI, or other future and existing non-AI technologies for beam prediction. Beam prediction includes spatial and temporal beam prediction, or space-time beam prediction.

[0045] In some examples, for spatial beam prediction, the input is a beam parameter information group (first beam parameter information array), the first beam parameter information group includes L0 beam parameter information, and another beam information group (second beam parameter information array) is predicted based on the L0 beam parameter information, and the second beam information group includes L1 beam parameter information. L1 and L0 are both positive integers. In some examples, L0<=L1. Alternatively, L0 may also 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 (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, or 4). The beam can be a transmitting beam, a receiving beam, or a transmitting and receiving beam pair. Each beam can correspond to a beam direction. In some examples, spatial beam prediction can be implemented by an AI module, such as by a network model. The beam parameter information corresponding to the L0 beams is combined into a beam parameter information array (first beam parameter information array) and input into the neural network. The neural network outputs the beam parameter information array corresponding to the L1 beams (second beam parameter information array), and the index corresponding to the L beam parameter information with the largest beam parameter information in the second beam parameter information array is determined as the preferred beam. In some examples, spatial beam prediction can also be achieved through non-AI methods, such as linear mapping or nonlinear mapping, Wiener filtering, etc. In some examples, the beams corresponding to the first beam parameter information group and the second beam parameter information group are different types of beams, and the beam types include wide beams, narrow beams, regular beams, irregular beams, etc.

[0046] 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 spatial-domain 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, time-domain beam prediction can be implemented through an AI module, for example, by implementing an input of N groups of beam parameter information, each group of beam parameter information includes L0 beam parameter information of a wave network model, or by synthesizing N * L0 beam parameter information into a larger beam parameter information array (the first beam parameter information array) and inputting it into the network model, and the network model outputs M groups of second beam parameter information, each group of second beam parameter information includes L1 beam parameter information. It is also possible to combine M * L1 beam parameter information into a beam parameter information array (the second beam parameter information array), and 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, time-domain beam prediction can also be implemented in a non-AI manner, such as through linear mapping or non-linear mapping, etc.

[0047] In some examples, the model parameters of the neural network are obtained through online training or offline training. For example, the neural network model parameters are trained by inputting at least one sample. The sample includes features and labels. In some examples, the feature is a first beam parameter information array, and the label is a second beam parameter information array. When training the network, the first beam parameter information array and the second beam parameter information array have a corresponding relationship, and in some embodiments, a one-to-one correspondence. During the network model deployment or testing phase, by inputting the first beam parameter information group 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 label, the prediction performance of the network can be known, and the neural network model parameters can be trained based on the loss function of the two.

[0048] In some examples, the transmit beam and / or receive beam indexes are numbered in an agreed manner to form a beam index. A beam index includes one of the following: a transmit beam index, a receive beam index, and a 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 a reference signal (such as CSI-RS, SSB, etc.) and measures the beam parameter information corresponding to each beam to obtain a beam parameter information array. Generally speaking, the first beam parameter information array is a beam parameter information array formed by the beam parameter information corresponding to the first beam set, and the second beam parameter information array is a beam parameter information array formed by the beam parameter information corresponding to the second beam set. The first beam set is a subset of the second beam set. Of course, it also includes that the first beam set and the second beam set come from different beam sets, such as one is a wide beam and the other is a narrow beam.

[0049] 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.

[0050] In some examples, in order to better transmit data or signals, a base station or a terminal needs to obtain measurement parameters, which 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 signal block resource indicator (Synchronization Signals Block Resource Indicator, SSBRI), layer 1 reference signal received power (L1 Reference Signal Received Power, L1-RSRP or RSRP), differential RSRP (Differential RSRP), layer 1 reference signal signal-to-interference noise ratio (L1 Signal-to-Interference Noise Ratio, L1-SINR or SINR), differential L1-SINR (Differential L1-SINR), reference signal received quality (Reference Signal Received Quality, RSRQ), L1-RSRQ, differential RSRQ, channel quality indicator (Channel Quality Indicator, CQI), precoding matrix indicator (Precoding Matrix Indicator, PMI), layer indicator (Layer Indicator, LI), rank indicator (Rank Indicator, RI), and precoding information. Precoding information includes first-category precoding information, such as codebook-based precoding information. A precoding matrix indication is one type of codebook-based precoding information. Precoding information also includes non-codebook-based implementations, such as second-category precoding information. In one example, CSI that includes only first-category precoding information is referred to as first-category CSI. In another example, CSI that includes second-category precoding information is referred to as second-category CSI.

[0051] In some embodiments, the terminal and the base station transmit channel state information that matches the channel information using first-type precoding information. The first-type precoding information is precoding information based on a traditional channel characteristic matrix or quantized values ​​of the characteristic matrix. For example, precoding information implemented using a codebook approach includes the N-antenna codebook in LTE, where N = 2, 4, 8, 12, 16, 24, 32, etc., and the type I codebook, type II codebook, type II port selection codebook, enhanced type II codebook, enhanced type II selection codebook, and further enhanced type II selection codebook in NR. The codebook here includes L codewords. The main idea is that the base station and the terminal pre-store L codewords according to a specified formula, table, or dictionary. In some examples, the codeword is a vector. In some examples, the codeword is a matrix, and the matrix includes r columns, each column of which is also a vector. In some embodiments, each column of the matrix is ​​mutually orthogonal. Here, the codeword that matches the channel information includes, but is not limited to, at least one of the following: the codeword has the smallest distance from the channel information, the codeword has the largest correlation with the channel information, the codeword has the smallest distance from 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, and the codeword has the largest signal-to-noise ratio calculated from the channel information. L is an integer greater than 1, and is generally greater than the number of transmit antennas.

[0052] In some examples, the terminal and the base station transmit channel state information that matches the channel information through the second type of precoding information. The second type of precoding information is channel state information obtained based on AI. In one example, the base station and the terminal obtain channel state information through the encoder of the autoencoder. The autoencoder includes an encoder and a decoder, with the encoder on the terminal and the decoder on the base station side. The terminal compresses the obtained channel information H through the encoder to obtain compressed H1, and quantizes the compressed H1 and feeds it back to the base station. The base station receives the quantized H1, dequantizes it and inputs it into the decoder, which decompresses it to restore H.

[0053] In some examples, channel information is information obtained based on a reference signal (e.g., CSI-RS) and used to describe the channel environment between communication nodes, such as a time-domain channel matrix or a frequency-domain channel matrix. In some examples, the channel information is a complex matrix, and the size of the channel matrix is ​​related to the number of transmit antennas Nt, the number of receive antennas Nr, and resource elements (REs). For example, there is at least one Nr*Nt channel matrix in a physical resource block.

[0054] In some embodiments, the beam parameter information is the L1 Reference Signal Received Power (L1-RSRP or RSRP) and differential RSRP corresponding to at least one beam. In some embodiments, the beam parameter information is the L1 Signal-to-Interference Noise Ratio (L1-SINR or SINR) and differential SINR corresponding to at least one beam. 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 (at least one of 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 beam 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 signal block resource indicator (SSBRI) corresponding to at least one beam or other reference signal resource indicator, such as SRSRI. 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 value (DB) of one of RSRP, RSRQ, and SINR.

[0055] 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. In some embodiments, the beam parameter information is obtained based on SRS measurements.

[0056] In some examples, beam parameter information is a subset of channel state information, that is, beam parameter information belongs to channel state information, which in turn belongs to measurement parameters. In some examples, measurement parameters, channel state information, and beam parameter information all belong to measurement results, processing results, or generation results.

[0057] In some examples, in order to transmit channel state information at the physical layer, the terminal and the base station define a CSI report (e.g., CSI report or CSI report congfig). The CSI report defines at least one of the following parameters: time-frequency resources used to feedback CSI, report quality report Quantity included in the CSI, time domain category report ConfigType for CSI feedback, channel measurement resources, interference measurement resources, measurement bandwidth size, and other information. The CSI report can be transmitted on uplink transmission resources, which include PUSCH and PUCCH. The CSI report also includes time domain characteristics, including periodic CSI report (P-CSI), aperiodic CSI report (AP-CSI), and semi-persistent CSI report (SP-CSI). Generally speaking, 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 generally transmitted on the PUSCH. SP-CSI can be transmitted on either the PUSCH or the PUCCH. P-CSI transmitted on the PUCCH is generally configured using high-layer signaling (Radio Resource Control (RRC)). SP-CSI transmitted on the PUCCH is also configured, activated, or deactivated using high-layer signaling (RRC and / or MAC CE). SP-CSI transmitted on the PUSCH is activated or deactivated via physical layer signaling (Downlink Control Information (DCI)). A-CSI is triggered by DCI, which is generally transmitted on the Physical Downlink Control Channel (PDCCH).

[0058] In the embodiments of the present disclosure, feedback CSI may also be referred to as transmission CSI or sending CSI, such as 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 refers to transmitting the content that needs to be transmitted as indicated in the CSI report, including but not limited to channel state information. Transmission here includes sending or receiving, and may also be replaced by feedback or receiving. In one example, transmission of a CSI report refers to transmitting the content that needs to be transmitted as indicated in the CSI report via uplink transmission resources, including but not limited to channel state information. Transmission here includes sending or receiving, and may also be replaced by feedback or receiving.

[0059] In some examples, the base station sends a reference signal for channel measurement in N time slots. The terminal measures the reference signals for channel measurement received in N time slots in at least one time slot. Channel information Hi of the corresponding time slot is obtained according to the reference signals for channel measurement received in the N time slots, i=1, ..., N. Here, the N time slots are the time slots before 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, the current time slot is the time slot for obtaining 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 indicated by the base station signaling received by the terminal.

[0060] In some examples, when a communication node obtains channel state information in the future, it must first determine the channel state reference resource (CSI reference resource). The CSI reference resource is a time-frequency resource, which is a time slot in the time domain and the bandwidth for measuring CSI in the frequency domain. For example, in broadband measurement, the frequency domain granularity is the entire bandwidth of the CSI measurement, and in subband measurement, it is a subband. Therefore, the frequency domain of the CSI reference resource is relatively clear, and here we only introduce how the time domain of the CSI reference resource is determined. The time slot where the channel state reference resource (CSI reference resource) of the channel state information is located is n1. That is, the channel state information CSI corresponding to the object measurement is measured in the channel measurement resource set and / or interference measurement resource set that is earlier than n1 and closest to n1. n1=nn ref , n' is the CSI reporting time slot, μ DL and are the uplink and downlink carrier spacing, n, Is a positive integer. ref is a value determined in one of the following ways.

[0061] When CSI reporting is periodic or semi-continuous reporting and only one CSI-RS resource is configured for channel measurement, n ref The value of satisfies: n1=nn ref is the minimum value of a valid downlink subframe and is greater than or equal to

[0062] When the CSI report is periodic or semi-continuous reporting and there is more than one CSI-RS resource configured for channel measurement, the value of nref satisfies: n1 = nn ref is the minimum value of a valid downlink subframe and is greater than or equal to

[0063] When the CSI report is aperiodic reporting, n ref The value satisfies: nn ref The time slot that triggers the CSI report, or when the CSI report is aperiodic reporting, n1=nn ref is the minimum value of a valid downlink subframe and is greater than or equal to Here Z' represents the minimum delay requirement from the last symbol of the channel measurement resource to the first symbol of the CSI report resource. Indicates the number of symbols in a time slot, For ease of description, Z' is referred to as the first delay Z', and the second delay Z represents the minimum delay from the last symbol of the transmission resource carrying the physical signaling for triggering the aperiodic CSI report (such as PDCCH) to the first symbol of the resource used to carry the CSI report (such as PUCCH or PUSCH).

[0064] 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 includes an antenna pair consisting of a transmitting antenna and a receiving antenna. In some examples, the antenna may be a uniform linear array. In some examples, the antenna is a uniform planar array, such as one comprising Ng rows and Mg columns of array elements / antennas, where Ng and Mg are positive integers. In some examples, the antenna is a uniform circular array. In some examples, the antenna may 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. 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.

[0065] As shown in FIG2 , the present disclosure provides a method for transmitting a channel state information report configuration, which includes the following S101 and S102 .

[0066] In S101, a CSI report configuration is obtained, where the CSI report configuration includes parameter information of L CSI reports, and the L CSI reports correspond to C reference signal resource sets.

[0067] Both L and C are positive integers greater than 1.

[0068] In some embodiments, the L CSI reports correspond to C reference signal resources, including but not limited to the following scenarios, for example, when only one CSI resource is included in a reference signal resource set. In some embodiments, the L CSI reports correspond to C reference signal resource configurations, including but not limited to the following scenarios, for example, when only one CSI resource set is included in a reference signal resource configuration.

[0069] In some embodiments, the L CSI reports are periodic CSI reports or semi-continuous CSI reports. Alternatively, the L CSI reports may be aperiodic CSI reports. For aperiodic CSI reports, the first communication node may configure the L CSI reports at a higher layer and trigger or activate them once through a physical layer signaling.

[0070] In some embodiments, the CSI report configuration further includes configuration information of C reference signal sets. In some instances, the configuration information of the C reference signal sets is configured via other higher layer signaling different from the CSI report configuration.

[0071] A reference signal resource set includes at least one reference signal resource. In some embodiments, the reference signal resource may include one or more CSI-RS resources and / or one or more SSB resources.

[0072] In one implementation, each of the L CSI reports corresponds to a reference signal resource set.

[0073] Therefore, the value of L is equal to the value of C. Exemplarily, 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 two CSI reports, each CSI report corresponding to a reference resource set, that is, the first communication node can also configure two reference resource sets corresponding to these two CSI reports.

[0074] In another implementation, one CSI report among L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports among the L CSI reports corresponds to a 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 predicted time slots is completed by configuring N+M reference signal resource sets and / or M+1 CSI reports at one time. The base station sends reference signals on the reference signal resource sets on N time slots, and the terminal receives the reference signals on the reference signal resource sets on N time slots and measures them to obtain beam parameter information on N time slots. The beam parameter information on N time slots is used as input to the model to predict the beam parameter information on M time slots, and all or part of the beam parameter information on M time slots is fed back through one CSI report. The base station receives all or part of the beam parameter information on M time slots, and completes the topK transmit beam scanning on M time slots by sending reference signals on M time slots and the terminal receives, measures, and reports CSI feedback on the reference signals on M time slots.

[0075] In another implementation, one CSI report among L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports among the L CSI reports corresponds to a 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 an example, the contents of M CSI reports among the 2*M reports here are empty values, that is, the report quality reportQuantity in their CSI reports is None. These M CSI reports do not perform CSI reporting, but only perform CSI measurement, such as performing receive beam scanning and other operations, and M is a positive integer. In an example, the M CSI reports with empty CSI report quality values ​​are the M CSI reports with odd CSI report indexes among the 2M CSI reports. In an example, the M CSI reports with empty CSI report quality values ​​are the M CSI reports with even CSI report indexes among the 2M CSI reports. In one example, the M CSI reports with null CSI report quality values ​​are the M CSI reports with the smallest CSI report index among the 2M CSI reports. In one example, the M CSI reports with null CSI report quality values ​​are the M CSI reports with the largest CSI report index among the 2M CSI reports.

[0076] In some embodiments, a CSI report configuration has its report content empty, indicating that the report quality reportQuantity in the configured CSI report is None. For the terminal, if a CSI report is empty, it will no longer feedback CSI-related content.

[0077] In one example, the transmission time slot of the i-th CSI report of L CSI reports is T*i+p, where p is the transmission time slot of the first CSI report and T is the transmission interval between two CSI reports, i=0,…,L, L and T are positive integers, and p is an integer.

[0078] In one example, the content of each of the L CSI reports includes, but is not limited to, at least one beam parameter information. In one example, the content of one of the L CSI reports includes, but is not limited to, at least one of the following: K L1-RSRPs, one or K CRIs, and one or K SSBRIs. In one example, the content of M of the L CSI reports includes, but is not limited to, at least one of the following: one L1-RSRP, one CRI, and one SSBRI. Furthermore, the content of M CSI reports is empty, meaning only receive beam scanning is performed.

[0079] In some embodiments, a CSI report configuration includes not only the parameter information of the L CSI reports mentioned above, but also configuration information of C reference signal resource sets corresponding to the L CSI reports.

[0080] It should be noted that in the process of spatial domain prediction of the transmit beam, spatial domain prediction of the transmit receive beam pair, time domain prediction of the transmit beam, and time domain prediction of the transmit receive beam pair, in order to improve the accuracy of the prediction, at least K optimal beams can be predicted in each prediction time slot. K is an integer greater than or equal to 1. In the process of transmitting and measuring these K predicted beams or beam pairs to finally determine the optimal transmit beam or beam pair, multiple CSI measurement and feedback processes are included. After the measurement and feedback of one CSI report are completed, the measurement and feedback of another CSI report can be configured through signaling. However, there will usually be a large delay. Therefore, in the above embodiment, the first communication node can include the parameter information of the above L CSI reports in a CSI report configuration. In this way, the flexibility of the channel state information report can be improved, and there is no need to reconfigure the CSI through high-level signaling, thereby reducing signaling delay and / or signaling overhead.

[0081] In some embodiments, the first communications node may configure a CSI report configuration before the first time slot, that is, configure L CSI reports and / or C reference signal resource sets before the first time slot.

[0082] The first time slot satisfies any one of the following: the minimum time slot for sending L CSI reports; the time slot for sending the first CSI report among the L CSI reports; the minimum time slot for sending the reference signal resources in the C reference signal resource sets; the time slot for sending the reference signal resources in the first reference signal resource set among the C reference signal resource sets.

[0083] In S102, a CSI report configuration is sent.

[0084] In some embodiments, the first communication node sends a CSI report configuration before or in the first time slot. That is, the first communication node sends the CSI report configuration corresponding to L CSI reports and / or configuration information of C reference signal resource sets before the first time slot. The first time slot is the minimum time slot for sending L CSI reports, or the first time slot is the time slot for sending the first CSI report among the L CSI reports, or the first time slot is the minimum time slot for sending reference signal resources in C reference signal resource sets; or the first time slot is the time slot for sending reference signal resources in the first reference signal resource set among the C reference signal resource sets.

[0085] In some embodiments, the method provided by the present disclosure can be applied to the processes of spatial domain prediction of transmit beams, spatial domain prediction of transmit-receive beam pairs, time domain prediction of transmit beams, and time domain prediction of transmit-receive beam pairs.

[0086] In embodiment 1, spatial transmission beam prediction is performed, and spatial beam prediction is performed on the second communication node side.

[0087] In one example, taking the case where the second communication node can be a terminal and the first communication node can be a base station, in the case of spatial transmission beam prediction, spatial beam prediction is performed on the second 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 by performing spatial beam prediction is MB transmission beams, denoted as SetB. MB is smaller than MA, and both MB and MA are positive integers. The first communication node can configure L CSI reports and reference signal resource sets corresponding to the L CSI reports in time slot T0, and time slot T0 is before the above-mentioned first time slot. For example, in a CSI report configuration, parameter information of 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. Exemplarily, 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.

[0088] Furthermore, the first communication node transmits reference signal resources corresponding to the first reference signal resource set in time slot T1, and the second communication node may receive and measure the reference signal resources corresponding to the first reference signal resource set at or before time slot T2 to obtain MB beam parameter information corresponding to the transmit beam in Set B. The first time slot may be time slot T1, time slot T2, or any time between time slots T1 and T2.

[0089] Thus, the second communication node can perform spatial beam prediction based on MB beam parameter information. Exemplarily, the second communication node can predict MA beam parameter information by inputting MB beam parameter information and / or corresponding CRI into the spatial beam model, and obtain the beam parameter information and / or corresponding CRI corresponding to the preferred K transmit beams based on the MA beam parameter information. Alternatively, the beam parameter information of the K preferred transmit beams or the CRI corresponding to the K preferred transmit beams can be directly predicted using the spatial beam model.

[0090] The second communication node may transmit a first CSI report in time slot T2. Accordingly, the first communication node may receive the first CSI report. The first CSI report includes beam parameter information corresponding to the K predicted preferred transmit beams and / or K CRIs.

[0091] In one implementation, the second communication node may also send a second CSI report.

[0092] Exemplarily, the first communication node can transmit at least K reference signal resources using K parameters in the first CSI report, such as the transmit beam corresponding to CRI, in time slot T3 where the pre-configured second reference signal resource set is located, where each reference signal resource corresponds to a transmit beam.

[0093] Thus, the second communication node can receive K reference signal resources and measure K beam parameter information, determine the beam parameter information corresponding to the optimal transmit beam and the CRI corresponding to the optimal transmit beam based on the K beam parameter information; and transmit the second CSI report in time slot T4. The second CSI report includes the beam parameter information and / or CRI corresponding to the determined optimal transmit beam. Accordingly, the first communication node receives the second CSI report and decodes the second CSI report to obtain 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.

[0094] In another implementation, the second communication node no longer sends the second CSI report.

[0095] In one example, due to resource conflicts or inability to schedule, the first communication node cannot transmit reference signal resources in the second reference signal resource set in the T3 time slot, and thus the second communication node no longer transmits the second CSI report. The first communication node may send signaling to the second communication node to instruct the terminal to no longer transmit the second CSI report, so that after receiving the signaling, the second communication node no longer performs measurements and provides feedback corresponding to the second CSI report.

[0096] In another example, when the value of K is 1, for example, if the K preferred CRIs fed back by the second communication node have only one value, the second communication node no longer sends the second CSI report. Alternatively, when the value of K is greater than or equal to 2, the first communication node may transmit the second reference signal resource set in time slot T3, and the second communication node may then send the second CSI report.

[0097] In the embodiment of the present disclosure, T0, T1, T2, T3 and T4 are all integers, and T1≥T0, T2≥T1, T3≥T2, and T4≥T3.

[0098] 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.

[0099] 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 in the second reference signal resource set and send them as the second reference signal. For example, the first communication node may determine K reference signal resources with the smallest resource index, K reference signal resources with the largest reference signal resource index, K reference signal resources starting with one of the reference signal resource indexes, K reference signal resources agreed upon by the first communication node and the second communication node, or K reference signal resources at equal intervals, etc.

[0100] In some embodiments, the transmit / receive beam pair may be predicted. The process is similar to that in the above embodiment 1 and will not be described in detail here.

[0101] In some embodiments, during the prediction of a transmit / receive beam pair, when scanning / measuring / predicting a receive beam is involved, the repetition parameter repetition 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 the T1 time slot or after T4, the first communication node can send a reference signal resource set, and the repetition parameter repetition can be set to on to scan the optimal receive beam. Correspondingly, the second communication node receives and measures the reference signal resources in the reference signal resource set, obtains a set of beam measurement parameters, and thus finds the largest beam measurement parameter to determine its optimal receive beam, and uses this receive beam for measurement and reception in subsequent measurements or transmissions. At this time, the reference signal resources used to measure the receive beam can also be configured in the same high-layer signaling as the above-mentioned L reference signal resources, or can be configured in the T0 time slot.

[0102] In embodiment 2, spatial transmission beam prediction is performed, and spatial beam prediction is performed on the first communication node side.

[0103] Exemplarily, taking the case where the second communication node can be a terminal and the first communication node can be 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 by performing spatial beam prediction is MB transmission beams, denoted as SetB. MB is smaller 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, and time slot T0 is before the above-mentioned first time slot. For example, in a CSI report configuration, parameter information of 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. Exemplarily, 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.

[0104] Furthermore, the first communication node transmits reference signal resources corresponding to the first reference signal resource set in time slot T1, and the second communication node may receive and measure the reference signal resources corresponding to the first reference signal resource set at or before time slot T2 to obtain MB beam parameter information corresponding to the transmit beam in Set B. The first time slot may be time slot T1, time slot T2, or any time between time slots T1 and T2.

[0105] The second communication node can transmit the first CSI report in time slot T2. Accordingly, the first communication node can receive the first CSI report. The first CSI report includes all or part of the beam parameter information and / or the corresponding CRI corresponding to the above-mentioned MB beam parameter information. The first communication node can input all or part of the acquired beam parameter information and / or the corresponding CRI corresponding to the MB transmit beams into the spatial beam prediction model for prediction to obtain MA beam parameter information, and obtain the beam parameter information and / or the corresponding CRI corresponding to the preferred K transmit beams based on the MA beam parameter information. Alternatively, the first communication node can obtain the beam parameter information of K preferred transmit beams or the CRI corresponding to the K preferred transmit beams based on the spatial beam model prediction.

[0106] In one implementation, the second communication node may also send a second CSI report.

[0107] Exemplarily, the first communication node can transmit at least K reference signal resources using K parameters in the first CSI report, such as the transmit beam corresponding to CRI, in time slot T3 where the pre-configured second reference signal resource set is located, where each reference signal resource corresponds to a transmit beam.

[0108] Thus, the second communication node can receive K reference signal resources and measure K beam parameter information, determine the beam parameter information corresponding to the optimal transmit beam and the CRI corresponding to the optimal transmit beam based on the K beam parameter information, and transmit the second CSI report in time slot T4. The second CSI report includes the beam parameter information and / or CRI corresponding to the determined optimal transmit beam. Accordingly, the first communication node receives the second CSI report, decodes the second CSI report, and 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.

[0109] In another implementation, the second communication node no longer sends the second CSI report.

[0110] For example, the first communication node cannot transmit the reference signal resources in the second reference signal resource set in the T3 time slot, and thus the second communication node no longer transmits the second CSI report. The first communication node may send signaling to the second communication node to instruct the terminal to no longer transmit the second CSI report, so that the second communication node no longer performs measurements and provides feedback corresponding to the second CSI report after receiving the signaling.

[0111] In another example, when the value of K is 1, for example, if the K preferred CRIs fed back by the second communication node have only one value, the second communication node no longer sends the second CSI report. Alternatively, when the value of K is greater than or equal to 2, the first communication node may transmit the second reference signal resource set in time slot T3, and the second communication node may then send the second CSI report.

[0112] In the embodiment of the present disclosure, T0, T1, T2, T3 and T4 are all integers, and T1≥T0, T2≥T1, T3≥T2, and T4≥T3.

[0113] 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.

[0114] 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 in the second reference signal resource set and send them as the second reference signal. For example, the first communication node may determine K reference signal resources with the smallest resource index, K reference signal resources with the largest reference signal resource index, K reference signal resources starting with one of the reference signal resource indexes, K reference signal resources agreed upon by the first communication node and the second communication node, or K reference signal resources at equal intervals, etc.

[0115] In some embodiments, the transmit / receive beam pair may also be predicted. The process is described in the above embodiment 2 and will not be repeated here.

[0116] In some embodiments, during the prediction of a transmit / receive beam pair, when scanning / measuring / predicting a 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 can be 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 the T1 time slot or after T4, the first communication node can send a reference signal resource set, and the repetition parameter can be set to on to scan the optimal receive beam. Correspondingly, the second communication node receives and measures the reference signal resources in the reference signal resource set, obtains a set of beam measurement parameters, and thereby finds the largest beam measurement parameter to determine its optimal receive beam, and uses this receive beam for measurement and reception in subsequent measurements or transmissions. At this time, the reference signal resources used to measure the receive beam can also be configured in the same high-layer signaling as the L reference signal resources mentioned above, or can be configured in the T0 time slot.

[0117] In embodiment 3, time domain transmission beam prediction is performed, and time domain beam prediction is performed on the second communication node side.

[0118] For example, assuming that the second communication node can be a terminal and the first communication node can be a base station, in the case of time-domain transmit beam prediction, time-domain beam prediction is performed on the second communication node. During the entire beam prediction process, the entire beam space includes MA transmit beams, denoted as SetA. The actual prediction result of time-domain beam prediction is MB transmit beams, denoted as SetB. MB is smaller than MA, and both MB and MA are positive integers.

[0119] The time-domain beam prediction model can predict beam parameter information sets for M future time slots (prediction windows or second time windows) based on beam parameter information sets for 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.

[0120] 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, and time slot T0 is before the above-mentioned first time slot. For example, in a CSI report configuration, parameter information of L CSI reports is configured. The first communication node configures N+M reference signal resource sets, the 1st CSI report is associated with N reference signal resource sets, the i-th CSI report is associated with the N+i-1th reference signal resource set, i=2,…,L. The reference signal resource here can be CSI-RS or SSB, etc. L is an integer greater than or equal to 2, taking L=M+1 as an example. In addition, after configuring N+M reference signal resource sets, the first communication node sends the reference signal resources in the 1st to Nth reference signal resource sets in the N time slots before time slot T1.

[0121] 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. MB beam parameter information on each of the N time slots corresponding to the transmit beam in SetB is obtained. By inputting the beam parameter information and / or the corresponding CRI corresponding to the MB transmit beams on each of the N time slots into the prediction model, M beam parameter information groups (each beam parameter information group includes MA beam parameter information) are obtained, and based on each beam parameter information group in the M beam parameter information groups, the beam parameter information and / or CRI corresponding to the preferred K transmit beams in the beam parameter information group are obtained, thereby obtaining M preferred beam parameter information groups and / or CRI groups.

[0122] Alternatively, the second communication node may directly predict, based on the time domain beam model, M preferred transmit beam beam parameter information groups or CRI groups corresponding to the M preferred transmit beams. 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 formed into a first CSI report, and the second communication node may transmit the first CSI report in time slot T2.

[0123] In one implementation, the first communication node obtains the M preferred beam parameter information sets and / or CRI sets and performs M rounds of second-stage beam scanning to determine the optimal transmit beam for each of the M predicted time slots. For the jth second-stage scan, in time slot T3_j where the pre-configured N+jth reference signal resource set is located, at least K reference signal resources are transmitted using the preferred transmit beam from the jth preferred beam parameter information set and / or CRI set, where each reference signal resource corresponds to a transmit beam.

[0124] Thus, 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, and transmits the j+1th CSI report in time slot T4_j. The j+1th CSI report includes the optimal beam parameter information and / or CRI. The base station receives the j+1th CSI report, thereby obtaining the optimal beam parameter information and / or CRI. Subsequently, in the jth period of the prediction window, scheduling and resource transmission can be performed based on the determined beam parameter information and / or CRI corresponding to the optimal transmit beam.

[0125] In another implementation, the first communication node cannot transmit reference signal resources in the second reference signal resource set in the T3_j time slot, so that the second communication node no longer transmits other CSI reports. The first communication node may send signaling to the second communication node to instruct the terminal not to transmit other CSI reports, so that the second communication node no longer performs measurements and provides feedback corresponding to other CSI reports after receiving the signaling.

[0126] In another example, when the value of K is 1, for example, if the K preferred CRIs fed back by the second communication node have only one value, the second communication node no longer performs measurements and feedback corresponding to the 1+jth CSI report to send the CSI report. Alternatively, when the value of K is greater than or equal to 2, the first communication node may transmit the second reference signal resource set in time slot T3_j, and the second communication node may then send a new CSI report.

[0127] 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.

[0128] 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 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.

[0129] In some embodiments, the second communication node may feedback a CSI report formed by M times of beam scanning in the second stage. That is, the second communication node may form a CSI report by combining 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, and then feedback the report.

[0130] 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, 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.

[0131] In some embodiments, beam prediction for the receiving beam may also be performed. The process may refer to Embodiment 3 above and will not be elaborated here.

[0132] In some embodiments, the transmit beam in the above embodiment is replaced with a receive beam, so that the receive beam can be predicted according to a similar method. When it comes to scanning / measuring / predicting the receive beam, the repetition parameter repetition 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 the T1 time slot, 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, and the repetition parameter repetition is set to on to scan the optimal receive beam. The second communication node receives and measures the reference signal resources in the reference signal resource set, obtains a set of beam measurement parameters, and thus finds the largest beam measurement parameter to determine the optimal receive beam for this predicted time slot, and uses this receive beam for measurement and reception in subsequent measurements or transmissions of this predicted time slot. The reference signal resources used to measure the receive beam may also be configured in the same high-layer signaling as the above-mentioned M+N reference signal resources, or configured at time T0.

[0133] In embodiment 4, time domain transmission beam prediction is performed, and time domain beam prediction is performed on the first communication node side.

[0134] For example, assuming the second communication node can be a terminal and the first communication node can be a base station, in the case of time-domain transmit beam prediction, time-domain beam prediction is performed on the first communication node. During the entire beam prediction process, the entire beam space includes MA transmit beams, denoted as SetA. The actual prediction result of time-domain beam prediction is MB transmit beams, denoted as SetB. MB is smaller than MA, and both MB and MA are positive integers.

[0135] The time-domain beam prediction model can predict beam parameter information sets for M future time slots (prediction windows or second time windows) based on beam parameter information sets for 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.

[0136] 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, and time slot T0 is before the above-mentioned first time slot. For example, in a CSI report configuration, parameter information of L CSI reports is configured. The first communication node configures N+M reference signal resource sets, the 1st CSI report is associated with N reference signal resource sets, the i-th CSI report is associated with the N+i-1th reference signal resource set, i=2,…,L. Here, the reference signal resource can be CSI-RS or SSB, etc. L is an integer greater than or equal to 2, taking L=M+1 as an example. In addition, after configuring N+M reference signal resource sets, the first communication node sends the reference signal resources in the 1st to Nth reference signal resource sets in the N time slots before time slot T1.

[0137] 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, and obtains the MB beam parameter information on the N time slots corresponding to the transmit beam in SetB. The first CSI report is formed based on all or part of the MB beam parameter information and / or the corresponding CRI on each time slot in the N time slots (for example, the beam parameter information and / or CRI with a beam parameter information greater than a preset threshold, or the beam parameter information and / or CRI with the largest ranking) and the first CSI report is fed back in the T2 time slot. Accordingly, the first communication node can receive the first CSI report. That is, the first communication node can obtain all or part of the MB beam parameter information and / or the corresponding CRI on each time slot in the N time slots.

[0138] The first communication node can input all or part of the MB beam parameter information and / or corresponding CRI on each of the N time slots obtained into the model to predict M beam parameter information groups (each beam parameter information group includes MA beam parameter information), and according to each beam parameter information group of the M beam parameter information groups, obtain the beam parameter information and / or CRI corresponding to the preferred K transmitting beams in the beam parameter information group, and obtain M preferred beam parameter information groups and / or CRI groups.

[0139] Alternatively, the first communication node may also 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, and each preferred CRI group includes K preferred CRIs. The first communication node performs M second-stage beam scans to determine the optimal transmit beam in each of the M predicted time slots. For the j-th second-stage scan, in the 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 beam corresponding to the K CRIs in the j-th preferred beam parameter information group and / or CRI group, and each reference signal resource corresponds to a transmit beam.

[0140] Correspondingly, the second communication node receives K reference signal resources and performs measurements to obtain K beam parameter information. Furthermore, the second communication node can determine the optimal beam parameter information and the CRI corresponding to the optimal beam parameter information based on the K beam parameter information. And transmit the j+1th CSI report in time slot T4_j to feedback the optimal beam parameter information and / or the CRI corresponding to the optimal beam parameter information. The first communication node receives the j+1th CSI report, thereby obtaining the optimal beam parameter information and / or the CRI corresponding to the optimal beam parameter information. Subsequently, in the jth time slot of the M predicted time slots, scheduling and resource transmission are performed based on the determined optimal beam parameter information and / or the CRI corresponding to the optimal beam parameter information.

[0141] In one example, the first communication node cannot transmit reference signal resources in the second reference signal resource set in the T3_j time slot, so the second communication node no longer transmits other CSI reports. The first communication node may send signaling to the second communication node to instruct the terminal not to transmit other CSI reports, so that the second communication node no longer performs measurements and provides feedback corresponding to other CSI reports after receiving the signaling.

[0142] In another example, when the value of K is 1, for example, if the K preferred CRIs fed back by the second communication node have only one value, the second communication node no longer performs measurements and feedback corresponding to the 1+jth CSI report to send the CSI report. Alternatively, when the value of K is greater than or equal to 2, the first communication node may transmit the second reference signal resource set in time slot T3_j, and the second communication node may then send a new CSI report.

[0143] 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.

[0144] 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 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.

[0145] 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 provide feedback on 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.

[0146] 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, the j-th time slot has Kj beam parameter information and / or CRI, and the corresponding number of reference signal resources is also Kj, where j = 1,..., M.

[0147] In some embodiments, reception beam prediction may also be performed. The process refers to Embodiment 4 above and will not be elaborated here.

[0148] In some embodiments, the transmit beam in the above embodiment is replaced with a receive beam, so that the receive beam can be predicted according to a similar method. When it comes to scanning / measuring / predicting the receive beam, the repetition parameter repetition 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 the T1 time slot, 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, and the repetition parameter repetition is set to on to scan the optimal receive beam. The second communication node receives and measures the reference signal resources in the reference signal resource set, obtains a set of beam measurement parameters, and thus finds the largest beam measurement parameter to determine the optimal receive beam for this predicted time slot, and uses this receive beam for measurement and reception in subsequent measurements or transmissions of this predicted time slot. The reference signal resources used to measure the receive beam may also be configured in the same high-layer signaling as the above-mentioned M+N reference signal resources, or configured at time T0.

[0149] In some embodiments of the present disclosure, for two adjacent CSI reports in the time domain, the content of the second CSI report can be determined based on the content of the first CSI report. Here, the first CSI report is the CSI report with the smaller transmission time slot of the two adjacent CSI reports, and the second CSI report is the CSI report with the larger transmission time slot of the two adjacent CSI reports.

[0150] Exemplarily, the above-mentioned determination of the content of the second CSI report based on the content of the first CSI report may include, for example, at least one of the following: determining the reference signal resources 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 a null value based on the content of the first CSI report.

[0151] 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.

[0152] The process of determining the content of the CSI report may refer 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.

[0153] In some embodiments, for two CSI reports that are adjacent in the time domain among the L CSI reports, 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 the first time interval and the second time interval. The first time interval is the difference between the time of sending 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, 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 i+1-th CSI report. Here, i=1, ..., L-1. The first time interval and the second time interval here are relative to the i-th CSI report and the i+1-th CSI report. Different values ​​of i may result in different first time intervals and second time intervals.

[0154] In some embodiments, for two CSI reports that are adjacent in time domain among 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.

[0155] 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.

[0156] Moreover, the above-mentioned first CSI report and second CSI report are relative. In time domain beam prediction, there may be multiple groups of such first CSI reports and second CSI reports, or second CSI reports and third CSI reports, etc.

[0157] For example, the first time interval may be the time from the last PUCCH or PUSCH symbol to the first communication node decoding the PUCCH or PUSCH. The second time interval may be the time from the first communication node sending the CSI-RS to the terminal measuring the CSI-RS. In addition, when the uplink and downlink carrier spacing is different, it may be necessary to convert the time according to the uplink and downlink carrier spacing.

[0158] Exemplarily, the time interval between two CSI reports is greater than twice the first delay Z', or greater than twice the second delay Z.

[0159] In some embodiments, for three CSI reports that are adjacent in the time domain among the L CSI reports, the time interval between the second CSI report and the third CSI report is greater than or equal to the sum of a third time interval and a fourth time interval. The third time interval is the difference between the time when the first symbol of the uplink physical channel for transmitting the second CSI report and the time when the first symbol of the second channel state information reference signal resource is received, and the fourth time interval is the difference between the time when the first symbol of the second channel state information reference signal resource is received and the time when the last symbol of the uplink physical channel for transmitting the third CSI report is transmitted.

[0160] The second CSI report and the third CSI report are relative. In time domain beam prediction, there may be multiple sets of such first CSI reports and second CSI reports, or second CSI reports and third CSI reports, etc.

[0161] In some embodiments, the first communication node may further send a first signaling, wherein the first signaling is used to indicate / update / modify parameters of at least one CSI report in the L CSI reports, and the first signaling is a MAC CE or a DCI.

[0162] Therefore, the second communication node receives the first signaling and can configure, modify or update the parameters of at least one CSI report in the L CSI reports based on the first signaling.

[0163] In some embodiments, the parameters of the CSI report include at least one of the following parameters: a reference signal resource configuration index corresponding to channel measurement (resources For Channel Measurement), a reference signal resource configuration index corresponding to interference (CSI-IM-Resources For Interference), a carrier parameter, a report configuration type (report Config Type), a reported quality parameter, a reported frequency domain configuration parameter, a channel quality indication configuration parameter, a codebook configuration parameter, a non-PMI port indication (non-PMI-Port Indication), a beam prediction indication, and a function indication. In some embodiments, it may also include parameters for defining the following: periodic reporting, semi-persistent reporting on PUCCH (semi Persistent On PUCCH), semi-persistent reporting on PUSCH (semi Persistent On PUSCH), non-periodic reporting, report quality (report Quantity), a parameter set for defining the reported CSI (such as cri-RI-PMI-CQI, cri-RI-i1, cri-RI-i1-CQI, etc.), report frequency domain configuration (report Freq Configuration) (such as including CQI format indication (cqi-Format Indicator), PMI format indication (pmi-Format Indicator), CSI report bandwidth (csi-Reporting Band), CQI table (cqi-Table)), etc.

[0164] In some embodiments, the first communication node may further send a second signaling, wherein the second signaling is used to indicate / update / modify parameters of at least one reference signal resource set of the C reference signal resource sets.

[0165] 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 (nzp-CSI-RS-ResourcesList), a repetition parameter (repetition), an aperiodic triggering offset (aperiodicTriggeringOffset), a tracking reference signal information enable (TRS-Info), and a second aperiodic triggering offset (aperiodicTriggeringOffset-r16).

[0166] In some embodiments, the first communication node may further send a third signaling message. The third signaling message is used to indicate / update / modify a parameter of at least one reference channel resource in the C reference signal resource sets.

[0167] In some embodiments, the parameters of at least one reference signal resource in the C reference signal resource sets include at least one of the following: period and offset (periodicity And Offset), power control offset relative to data (power Control Offset), power control offset relative to SS (synchronization signal, synchronization signal) (power Control OffsetSS), QCL information of periodic reference signal (qcl-InfoPeriodicCSI-RS), resource mapping (resource Mapping), and scrambling code identifier (scrambling ID).

[0168] In some embodiments, the value of at least one of the above parameters in the CSI report can be changed through signaling (such as the above-mentioned MAC CE or DCI) according to changes in the channel scenario or application needs. Subsequent CSI reporters continue to use the parameter values ​​in the CSI report changed by signaling to generate CSI reports until there is new signaling to change the parameters in the CSI report.

[0169] It should be noted that during the spatial prediction of transmit beams, spatial prediction of transmit / receive beam pairs, time-domain prediction of transmit beams, and time-domain prediction of transmit / receive beam pairs, reporting parameters can be dynamically modified across multiple CSI reports in different time slots. This avoids the significant delay associated with reconfiguring CSI via higher-layer signaling while also allowing for the flexible reporting of CSI appropriate 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 delays.

[0170] In one example, the reference signal resource (resources for channel measurement) configuration index corresponding to the channel measurement is taken as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-level signaling, and the periodic or semi-continuous CSI report configuration at least includes the reference signal resource configuration index corresponding to the channel measurement. In the CSI report on some time slots, its value is configured, and the second communication node can filter the channels obtained by measuring multiple time slots, such as averaging. As the environment or demand changes, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to not Configured, so that after receiving the signaling, the second communication node will no longer filter the channels at multiple moments in the subsequent CSI report measurement. In other examples, the first communication node and the second communication node can flexibly modify the time domain restriction of interference measurement (time restriction for interference measurements) in a similar manner.

[0171] In another example, take carrier parameters as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-level signaling, and the periodic or semi-continuous CSI report configuration includes at least carrier parameters. In the CSI report on some time slots, its value is 0, and the second communication node can obtain the CSI corresponding to carrier 0 and provide feedback. As the environment or demand changes, the carrier switches, such as the conversion of cells, from low frequency to high frequency, bandwidth changes, etc. The first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to 1, so that after receiving the instruction, the second communication node can measure the CSI corresponding to carrier 1 and provide feedback in the subsequent CSI report measurement. Of course, in some examples, it can be modified to other values ​​through signaling in a similar way, which will not be repeated here.

[0172] In another example, take the configuration type of the report as an example. The first communication node can configure a periodic or semi-persistent CSI report configuration through high-layer signaling. The periodic or semi-persistent CSI report configuration includes at least the configuration type of the report, which is used to indicate whether the CSI report is periodic or semi-persistent, etc. Time domain characteristics. In the CSI report on some time slots, its value is semi Persistent On PUCCH, and the second communication node can measure and obtain the CSI and feed it back on the PUCCH. As the environment or demand changes, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to semi Persistent On PUSCH, so that after the second communication node receives the signaling, in the subsequent CSI report measurement, the CSI measured by the terminal is fed back on the designated PUSCH. In other examples, it can be similarly modified to other values ​​through signaling, which will not be repeated here.

[0173] In another example, take the quality parameter of the report as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-layer signaling. The periodic or semi-continuous CSI report configuration includes at least the quality parameter of the report, indicating the content included in the CSI report, such as the CSI feedback is a combination of one or more of CRI, RI, PMI, and CQI. In the CSI report on some time slots, 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 demand changes, such as due to an increase in speed, the closed-loop PMI fed back is no longer 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 indicate that the parameter is modified to cri-RI-i1. Then, after the second communication node receives the signaling, when measuring the subsequent CSI report, the second communication node measures CRI, RI, and the wideband codebook index i1. Of course, in some examples, it can be similarly modified to other values ​​through signaling, which will not be described in detail here. In other examples, it can be similarly modified to other values ​​through signaling, which will not be described in detail here.

[0174] In another example, take the reported frequency domain configuration parameters as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-level signaling. The periodic or semi-continuous CSI report configuration includes at least the reported frequency domain configuration parameters, which are used to indicate whether the content of the CSI report is wideband or sub-band. In the CSI report on some time slots, the sub-parameter CQI format indicator cqi-Format Indicator of the reported frequency domain configuration takes the value of wide band CQI, and the second communication node measures and obtains CSI. The CSI includes at least CQI, and this CQI is wideband. As the environment or demand changes, such as the need to track the fine CQI of each sub-band, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the sub-parameter CQI format indicator cqi-Format Indicator of the reported frequency domain configuration takes the value of sub-band CQI. After receiving the signaling, the second communication node measures the CQI of the sub-band during the subsequent CSI report measurement. In another example, in the CSI report on some time slots, the sub-parameter PMI format indication pmi-Format Indicator of the reporting frequency domain configuration takes a value of wide band PMI, and the second communication node measures and obtains CSI, the CSI includes at least PMI, and this PMI is wideband, such as at least one of i1, i11, i12, etc. As the environment or demand changes, such as the need to track the fine PMI of each sub-band, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the sub-parameter PMI format indication pmi-Format Indicator of the reporting frequency domain configuration takes a value of sub band PMI, then after receiving the signaling, the second communication node measures the PMI of the sub-band when measuring the subsequent CSI report.

[0175] Alternatively, in CSI reports on some time slots, the sub-parameter CSI reporting bandwidth (csi-Reporting Band) of the reported frequency domain configuration parameter takes the value BIT[1, 1, 1, 0, 0, 0, 0], and the second communication node performs CSI measurement on the bandwidth of eight subbands, and only measures the sub-bands where the above bit mapping takes the value 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 (such as a MAC CE or DCI) to indicate that the sub-parameter CSI reporting bandwidth (csi-Reporting Band) of the reported frequency domain configuration takes the value BIT[1, 1, 1, 1, 1, 0, 0]. Then, after receiving the signaling, the second communication node only measures the sub-bands where the above bit mapping takes the value 1, such as sub-band 1, sub-band 2, ..., sub-band 6, during subsequent CSI report measurements. In other examples, similar changes can be made to other values ​​through signaling, which will not be repeated here.

[0176] In another example, take the CQI table as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-level signaling. The periodic or semi-continuous CSI report configuration includes at least a CQI table, which is used to indicate the table for calculating the CQI. In the CSI report on some time slots, its value is table1, and the second communication node measures and obtains the CSI based on table1. As the environment or demand changes, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to table1. Then, after receiving the signaling, the second communication node measures and obtains the CSI based on table2 when measuring the subsequent CSI report. In other examples, it can be similarly modified to other values ​​through signaling, which will not be repeated here.

[0177] In another example, take the codebook configuration parameters as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-layer signaling. The periodic or semi-continuous CSI report configuration includes at least codebook configuration parameters, which are used to indicate the configuration of the codebook when calculating the CSI, such as whether the codebook type is typeI codebook or typeII codebook, such as the rank restriction of the codebook, such as the mode of the codebook. In the CSI report on some time slots, the configured codebook mode is type1 codebook, and the second communication node measures and obtains CSI based on type1. As the environment or demand changes, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to type2. Then, after the second communication node receives the signaling, in the subsequent CSI report measurement, the second communication node measures and obtains CSI based on type2. Of course, in some examples, it can be similarly modified to other values ​​through signaling, which will not be described in detail here. In another example, similarly, the value of the non-PMI-Port Indication parameter can be modified through signaling, the value of the group-based beam reporting parameter can be modified through signaling, and the value of the sub-band size parameter can be modified through signaling.

[0178] In another example, take the model indication parameter as an example. The first communication node can configure a periodic or semi-continuous CSI report configuration through high-level signaling. The periodic or semi-continuous CSI report configuration includes at least a model indication parameter, which is used to indicate the model used when calculating the CSI. In the CSI report on some time slots, the configured model indication is 1, and the second communication node obtains the CSI based on the model corresponding to the model indication 1. As the environment or demand changes, the first communication node can send a signaling (such as MAC CE or DCI) to indicate that the parameter is modified to 2. Then, after the second communication node receives the signaling, in the subsequent CSI report measurement, the second communication node obtains the CSI based on the model corresponding to the model indication 1. Of course, in some examples, it can be similarly modified to other values ​​through signaling, which will not be described in detail here. In other embodiments, similarly, the value of the non-PMI port indication function indication can also be modified through signaling, which will not be described here.

[0179] In some embodiments, when the above-mentioned L CSI reports are non-periodic CSI reports, the first communication node may further send a fourth signaling, where the fourth signaling is used to activate the L CSI reports, and the fourth signaling is a physical layer signaling.

[0180] In some embodiments, the CSI report configuration corresponding to L CSI reports includes at least L CSI report time slot offsets, and the L CSI report time slot offsets satisfy the first condition, that is, 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.

[0181] In some embodiments, the C reference signal resource sets corresponding to L CSI reports correspond to at least C reference signal resource time slot offsets, and the C reference signal resource time slot offsets satisfy the 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.

[0182] This disclosure provides a method for transmitting channel state information (CSI) report configurations, enabling simultaneous configuration of L correlated CSI reports. Furthermore, the configuration of some parameters of at least one of the L CSI reports can be modified via MAC CE and / or physical layer signaling. This improves the flexibility of CSI reporting, eliminates the need for reconfiguration of CSI reports via higher-layer signaling, and reduces signaling latency.

[0183] As shown in Figure 3, the present disclosure provides another method for transmitting a channel state information report configuration, which includes the following S201: receiving a CSI report configuration. The CSI report configuration includes parameter information of L CSI reports, where the L CSI reports correspond to C reference signal resource sets.

[0184] Both L and C are positive integers greater than 1.

[0185] In some embodiments, a CSI report configuration may include parameter information of the L CSI reports. Alternatively, a CSI report configuration may further include C reference signal resource sets corresponding to the L CSI reports.

[0186] It should be noted that in the process of spatial domain prediction of the transmit beam, spatial domain prediction of the transmit receive beam pair, time domain prediction of the transmit beam, and time domain prediction of the transmit receive beam pair, in order to improve the accuracy of the prediction, at least K optimal beams can be predicted in each prediction time slot. K is an integer greater than or equal to 1. In the process of transmitting and measuring these K predicted beams or beam pairs to finally determine the optimal transmit beam or beam pair, multiple CSI measurement and feedback processes are included. After the measurement and feedback of one CSI report are completed, the measurement and feedback of another CSI report can be configured through signaling, but there will usually be a large delay. Therefore, in the above embodiment, the first communication node can configure the parameter information of the above L CSI reports in one CSI report. In this way, the flexibility of the channel state information report can be improved, and there is no need to reconfigure the CSI through high-level signaling, thereby reducing signaling delay and / or signaling overhead.

[0187] In some embodiments, the L CSI reports corresponding to the C reference signal resources include, but are not limited to, the following scenarios, for example, when only one CSI resource is included in a reference signal resource set. In some embodiments, the L CSI reports corresponding to the C reference signal resource configurations include, but are not limited to, the following scenarios, for example, when only one CSI resource set is included in a reference signal resource configuration.

[0188] In some embodiments, the L CSI reports are periodic CSI reports or semi-continuous CSI reports. Alternatively, the L CSI reports may be aperiodic CSI reports. For aperiodic CSI reports, the first communication node may configure the L CSI reports at a higher layer and trigger or activate them once through a physical layer signaling.

[0189] In some embodiments, the CSI report configuration further includes configuration information of C reference signal sets. In some instances, the configuration information of the C reference signal sets is configured via other higher layer signaling different from the CSI report configuration.

[0190] A reference signal resource set includes at least one reference signal resource. In some embodiments, the reference signal resource may include one or more CSI-RS resources and / or one or more SSB resources.

[0191] In one implementation, each of the L CSI reports corresponds to a reference signal resource set.

[0192] In another implementation, one CSI report among L CSI reports corresponds to N reference signal resource sets, and M CSI reports among the L CSI reports each correspond to a reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L=M+1, C=N+M.

[0193] In another 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 a reference signal resource set. N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, and C = N + 2*M.

[0194] In some embodiments, the second communication node may generate a CSI report based on the received CSI reporting configuration, and send the generated CSI report to the first communication node.

[0195] In some embodiments, the parameters of the CSI report include at least one of the following parameters: a reference signal resource configuration index corresponding to channel measurement, a reference signal resource configuration index corresponding to interference, a carrier parameter, a configuration type of the report, a quality parameter of the report, a frequency domain configuration parameter of the report, a configuration parameter of the channel quality indication, a codebook configuration parameter, a non-PMI port indication, a beam prediction indication, and a function indication. In some embodiments, the parameters for defining the following may also be included: periodic reporting, semi-continuous reporting on the PUCCH, semi-continuous reporting on the PUSCH, aperiodic reporting, report quality (such as including a CQI format indication and a PMI format indication), CSI report bandwidth, CQI table, etc.

[0196] In some embodiments, the second communication node may receive first signaling sent by the first communication node, where the first signaling is used to indicate parameters of at least one CSI report in the L CSI reports. The first signaling is MAC CE or DCI.

[0197] In some embodiments, the second communication node may also receive second signaling sent by the first communication node. The second signaling is used to indicate parameters of at least one reference signal resource set of the C reference signal resource sets.

[0198] In some embodiments, the second communication node may further receive third signaling sent by the first communication node. The third signaling is used to indicate a parameter of at least one reference channel resource of the C reference signal resource sets.

[0199] In some embodiments, the second communication node may further receive fourth signaling sent by the first communication node, the fourth signaling being physical layer signaling for activating L CSI reports. In this case, the L CSI reports are aperiodic CSI reports.

[0200] In some embodiments, the values ​​of the above parameters in at least one CSI report can be changed through signaling (such as the above-mentioned MAC CE or DCI) according to changes in channel scenarios or application needs. Subsequent CSI reporters continue to use the parameter values ​​in the CSI report changed by signaling to generate CSI reports until there is new signaling to change the parameters in the CSI report.

[0201] It should be noted that during the spatial prediction of transmit beams, spatial prediction of transmit / receive beam pairs, time-domain prediction of transmit beams, and time-domain prediction of transmit / receive beam pairs, reporting parameters can be dynamically modified across multiple CSI reports in different time slots. This avoids the significant delay associated with reconfiguring CSI via higher-layer signaling while also allowing for the flexible reporting of CSI appropriate 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 delays.

[0202] For detailed description of S201 , please refer to the relevant descriptions in S101 and S102 above, which will not be repeated here.

[0203] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between various communication nodes. It is understandable that, in order to implement the above functions, each communication node includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0204] FIG4 is a schematic diagram showing the composition of a communication device according to an embodiment of the present disclosure. As shown in FIG4 , the communication device 40 includes an acquisition module 401 and a sending module 402 .

[0205] In some embodiments, the acquisition module 401 is configured to acquire a channel state information (CSI) report configuration, where the CSI report configuration 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 sending module 402 is configured to send the CSI report configuration.

[0206] In some embodiments, the CSI report configuration further includes configuration information of C reference signal resource sets.

[0207] In some embodiments, L CSI reports and / or C reference signal resource sets are configured before the first time slot; or, configuration information of the CSI report configuration and / or C reference signal resource sets corresponding to the L CSI reports is sent before the first time slot.

[0208] The first time slot satisfies any one of the following: the minimum time slot for sending L CSI reports; the time slot for sending the first CSI report among the L CSI reports; the minimum time slot for sending the reference signal resources in the C reference signal resource sets; the time slot for sending the first reference signal resource in the C reference signal resource sets.

[0209] In some embodiments, the L CSI reports are periodic CSI reports or semi-continuous CSI reports.

[0210] In some embodiments, each of the L CSI reports corresponds to a reference signal resource set.

[0211] In some embodiments, one CSI report among L CSI reports corresponds to N reference signal resource sets, and each of the M CSI reports among the L CSI reports corresponds to a reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L = M + 1, and C = N + M. Alternatively, one CSI report among L CSI reports corresponds to N reference signal resource sets, and each of the 2*M CSI reports among the L CSI reports corresponds to a reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L = 2*M + 1, and C = N + 2*M.

[0212] In some embodiments, the sending module 402 is further configured to send a first signaling, where the first signaling is configured to indicate a parameter of at least one CSI report among the L CSI reports.

[0213] In some embodiments, the first signaling is MAC CE or DCI.

[0214] In some embodiments, the parameters of the CSI report include at least one of the following parameters: a reference signal resource configuration index corresponding to the channel measurement, a reference signal resource configuration index corresponding to the interference, a carrier parameter, a configuration type of the report, a quality parameter of the report, a frequency domain configuration parameter of the report, a configuration parameter of the channel quality indication, a codebook configuration parameter, a non-PMI port indication, a beam prediction indication, and a function indication.

[0215] In some embodiments, the sending module 402 is further configured to send a second signaling, where the second signaling is configured to indicate a parameter of at least one reference signal resource set of the C reference signal resource sets.

[0216] In some embodiments, 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.

[0217] In some embodiments, the sending module 402 is further configured to send a third signaling, where the third signaling is configured to indicate a parameter of at least one reference channel resource of the C reference signal resource sets.

[0218] In some embodiments, the parameters of at least one reference signal resource in the C reference signal resource sets include at least one of the following: period and offset, power control offset relative to data, power control offset relative to SS, QCL information of the periodic reference signal, resource mapping, and scrambling code identification.

[0219] In some embodiments, for two CSI reports that are adjacent in the time domain among 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; 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 report.

[0220] In some embodiments, among the three CSI reports adjacent in the time domain among the L CSI reports, the time interval between the second CSI report and the third CSI report is greater than or equal to the sum of the third time interval and the fourth time interval; 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 report.

[0221] In some embodiments, among two CSI reports that are adjacent in the time domain, the content of the second CSI report is determined according to the content of the first CSI report.

[0222] In some embodiments, determining the content of the second CSI report based on the content of the first CSI report includes at least one of the following: determining the reference signal resources 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 a null value based on the content of the first CSI report.

[0223] 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.

[0224] In some embodiments, the L CSI reports are aperiodic CSI reports. The sending module 402 is further configured to send a fourth signaling, where the fourth signaling is configured to activate the L CSI reports and is a physical layer signaling.

[0225] In some embodiments, the CSI reporting configuration further includes L CSI reporting time slot offsets, and the L CSI reporting time slot offsets satisfy the first condition.

[0226] In some embodiments, the CSI report configuration further includes C reference signal resource time slot offsets, and the C reference signal resource time slot offsets meet the second condition.

[0227] For a more detailed description of the acquisition module 401 and the sending module 402, as well as a more detailed description of each technical feature and a description of the beneficial effects, etc., please refer to the corresponding method embodiment section above and will not be repeated here.

[0228] It should be noted that the modules in FIG4 may also be referred to as units. For example, the sending module may be referred to as a sending unit. In addition, in the embodiment shown in FIG4 , the names of the modules may not be the names shown in the figure. For example, the sending module may be referred to as a communication module, and the acquiring module may be referred to as a communication module.

[0229] If the various units or modules in Figure 4 are implemented in the form of 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 solution of the embodiment of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0230] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide a schematic structural diagram of a communication device. As shown in Figure 5, the communication device 50 includes: a processor 502, a communication interface 503, and a bus 504. In some embodiments, the communication device 50 may also include a memory 501.

[0231] Processor 502 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof, and may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 502 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0232] The communication interface 503 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0233] The memory 501 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0234] As an implementation, the memory 501 may exist independently of the processor 502. The memory 501 may be connected to the processor 502 via a bus 504 and used to store instructions or program codes. When the processor 502 calls and executes the instructions or program codes stored in the memory 501, the information processing mode determination method provided in the embodiment of the present disclosure can be implemented.

[0235] In another implementation, the memory 501 may also be integrated with the processor 502 .

[0236] Bus 504 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 504 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG5 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0237] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the equipment or device is divided into different functional modules to complete all or part of the functions described above.

[0238] The embodiments of the present disclosure also provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium). All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be the memory or memory of any of the aforementioned embodiments. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned device or apparatus, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned device or apparatus. Furthermore, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned device or apparatus and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned device or apparatus. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0239] The embodiments of the present disclosure further provide a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the methods provided in the above embodiments.

[0240] Based on the technical solutions provided in this disclosure, L CSI reports can be configured simultaneously, and these 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, thereby improving the flexibility of channel state information reporting. This eliminates the need to reconfigure CSI reports through higher-layer signaling and reduces signaling latency.

[0241] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0242] Although the present disclosure has been described with reference to specific features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations if they fall within the scope of the claims of the present disclosure and their equivalents.

[0243] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for transmitting a channel state information report configuration, comprising: Acquire a channel state information CSI report configuration, where the CSI report configuration includes parameter information of L CSI reports, where the L CSI reports correspond to C reference signal resource sets, where L and C are both positive integers greater than 1; Send the CSI report configuration.

2. The method according to claim 1, wherein: The CSI report configuration also includes configuration information of the C reference signal resource sets.

3. The method according to claim 1, wherein: configuring the L CSI reports and / or the C reference signal resource sets before the first time slot; or sending the CSI report configurations corresponding to the L CSI reports and / or the configuration information of the C reference signal resource sets before the first time slot; The first time slot satisfies any one of the following conditions: The first time slot is a minimum time slot for sending the L CSI reports; The first time slot is a time slot for sending a first CSI report among the L CSI reports; The first time slot is a minimum time slot for sending reference signal resources in the C reference signal resource sets; The first time slot is a time slot for sending a first reference signal resource in the C reference signal resource sets.

4. The method according to claim 1, wherein: The L CSI reports are periodic CSI reports or semi-continuous CSI reports.

5. The method according to claim 1, wherein: Each CSI report in the L CSI reports corresponds to a reference signal resource set.

6. The method according to claim 1, wherein: One CSI report in 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 a reference signal resource set, where N is an integer greater than 1, M is a positive integer, and L=M+1, and C=N+M; or, One CSI report among the L CSI reports corresponds to N reference signal resource sets, and 2*M CSI reports among the L CSI reports each correspond to a 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, further comprising: Sending a first signaling, where the first signaling is used to indicate a parameter of at least one CSI report in the L CSI reports.

8. The method according to claim 7, wherein: The first signaling is a media access control element MAC CE or downlink control information DCI.

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

10. The method according to claim 1, further comprising: Sending second signaling, where the second signaling is used to indicate a parameter of at least one reference signal resource set of the C reference signal resource sets.

11. The method according to claim 10, wherein: The parameters of at least one reference signal resource set of the C reference signal resource sets include at least one of the following: Reference signal resource list, repetition parameter, non-periodic trigger bias, tracking reference signal information enable, second non-periodic trigger bias.

12. The method according to claim 1, further comprising: A third signaling is sent, where the third signaling is used to indicate a parameter of at least one reference channel resource of the C reference signal resource sets.

13. The method according to claim 12, wherein: The parameter of at least one reference signal resource in the C reference signal resource sets includes at least one of the following: Period and offset, power control offset relative to data, power control offset relative to synchronization signal SS, quasi-co-location QCL information of periodic reference signal, resource mapping, and scrambling code identification.

14. The method according to claim 1, wherein: For two CSI reports that are adjacent in the time domain among 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; wherein 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.

15. The method according to claim 1, wherein: Among the three CSI reports that are adjacent in the time domain among the L CSI reports, the time interval between the second CSI report and the third CSI report is greater than or equal to the sum of the third time interval and the fourth time interval; wherein the third time interval is the difference between the time of sending the first symbol of the uplink physical channel for 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 for the third CSI report.

16. The method according to claim 1, wherein: In two CSI reports that are adjacent in the time domain, the content of the second CSI report is determined according to the content of the first CSI report.

17. The method according to claim 16, wherein: The determining the content of the second CSI report according to the content of the first CSI report includes at least one of the following: Determine the reference signal resource corresponding to the second CSI report according to the content of the first CSI report; or, Determine the number of CSI parameters in the second CSI report according to the content of the first CSI report; or, Determine whether the second CSI report content is a null value according to the content of the first CSI report.

18. The method according to claim 1, wherein: Among three CSI reports that are adjacent in the time domain, the content of the second CSI report is determined according to the content of the first CSI report, and / or the content of the third CSI report is determined according to the content of the second CSI report.

19. The method according to claim 1, wherein: The L CSI reports are non-periodic CSI reports; and the method further includes: Send a fourth signaling, where the fourth signaling is used to activate the L CSI reports, wherein the fourth signaling is a physical layer signaling.

20. The method according to claim 19, wherein: The CSI reporting configuration further includes L CSI reporting time slot offsets, and the L CSI reporting time slot offsets satisfy a first condition.

21. The method according to claim 19, wherein: The CSI report configuration also includes C reference signal resource time slot offsets, and the C reference signal resource time slot offsets meet the second condition.

22. A communication device, wherein: include: Memory and processor; The memory is coupled to the processor; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 21 is performed.

23. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 21.

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