Channel state information sending method, channel state information receiving method, and apparatus and storage medium

Abstract

A channel state information sending method, a channel state information receiving method, and an apparatus and a storage medium. The channel state information sending method comprises: receiving first signaling; on the basis of the first signaling, determining N reference signal resources, wherein the N reference signal resources correspond to N pieces of channel state information, the N reference signal resources comprise N1 first-type reference signal resources and N2 second-type reference signal resources, the N pieces of channel state information comprise N1 pieces of first-type channel state information and N2 pieces of second-type channel state information, N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 is equal to N; on the basis of one or more of the N pieces of channel state information, determining first channel state information; on the basis of the first channel state information, generating a channel state information report; and sending the channel state information report.

Description

Methods, apparatus and storage media for transmitting and receiving channel state information

[0001] This disclosure claims priority to Chinese patent application No. 202510127647.9, filed on January 27, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a method, apparatus and storage medium for transmitting and receiving channel state information. Background Technology

[0003] Multi-antenna technology is an important means to improve data transmission rate and link reliability in wireless communication systems. It includes key technologies such as multiple input multiple output (MIMO), coordinated multipoint (CoMP) transmission (e.g., joint transmission, JT), and high-frequency beamforming. The performance optimization of multi-antenna technology is highly dependent on accurate channel state information (CSI). Summary of the Invention

[0004] In a first aspect, this disclosure provides a method for transmitting channel state information, the method comprising:

[0005] Receive the first signaling;

[0006] N reference signal resources are determined based on the first signaling; the N reference signal resources correspond to N channel state information; the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0007] The first channel state information is determined based on one or more of the N channel state information.

[0008] Generate a channel state information report based on the first channel state information;

[0009] Send a channel status information report.

[0010] Secondly, this disclosure also provides a method for receiving channel state information, the method comprising:

[0011] Send a first signaling instruction, which indicates N reference signal resources; the N reference signal resources correspond to N channel state information; the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0012] Receive channel state information report, which includes first channel state information determined based on one or more of N channel state information.

[0013] Thirdly, this disclosure also provides an apparatus comprising:

[0014] The receiving module is used to receive the first signaling.

[0015] The determination module is used to determine N reference signal resources based on the first signaling; the N reference signal resources correspond to N channel state information; the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0016] The determining module is also used to determine the first channel state information based on one or more channel state information from N channel state information;

[0017] The generation module is used to generate a channel state information report based on the first channel state information;

[0018] The transmitting module is used to send channel status information reports.

[0019] Fourthly, this disclosure also provides an apparatus comprising:

[0020] The transmitting module is used to transmit a first signaling, which indicates N reference signal resources; the N reference signal resources correspond to N channel state information; the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0021] The receiving module is used to receive channel state information reports, which include first channel state information determined based on one or more of N channel state information reports.

[0022] Fifthly, a communication device is provided, comprising: a processor and a memory; the memory storing processor-executable instructions; when the processor is configured to execute the instructions, causing the communication device to implement any of the methods provided in the first to second aspects above.

[0023] A sixth aspect provides a computer-readable storage medium comprising a non-transitory computer-readable storage medium having computer instructions stored thereon, which, when executed on a computer, cause the computer to perform any of the methods provided in the first or second aspect.

[0024] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, cause the computer to perform any of the methods provided in the first or second aspect. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the technical solutions of this disclosure and constitute a part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0026] Figure 1 is an architecture diagram of a communication system according to some embodiments.

[0027] Figure 2 is a flowchart of a method for transmitting channel state information according to some embodiments.

[0028] Figure 3 is a flowchart of a method for receiving channel state information according to some embodiments.

[0029] Figure 4 is a block diagram of a communication device according to some embodiments.

[0030] Figure 5 is a block diagram of a communication device according to some embodiments.

[0031] Figure 6 is a block diagram of a communication device according to some embodiments. Detailed Implementation

[0032] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0033] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0034] It should be noted that, in this disclosure, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0035] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0036] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "more than one" means two or more.

[0037] To facilitate understanding, we will first provide a brief introduction and explanation of some terms or basic concepts of technology involved in the embodiments of the present invention.

[0038] In some embodiments, higher-layer signaling includes, but is not limited to, at least one of the following: radio resource control (RRC), media access control element (MAC CE), and other signaling other than physical layer signaling. Physical layer signaling includes, but is not limited to: downlink physical layer signaling transmitted on the physical downlink control channel (PDCCH), uplink physical layer signaling transmitted on the physical uplink control channel (PUCCH), and physical layer signaling transmitted on the physical uplink shared channel (PUSCH).

[0039] In some embodiments, the indicator of various parameters or resources may also be called an index or an identifier (ID). Indication, identifier, and index are equivalent concepts and can be used interchangeably in some embodiments.

[0040] In some embodiments, a resource identifier for a wireless system can be used to identify resources of the wireless system. This resource identifier can also be referred to as a resource indicator or resource index. Here, the resources of the wireless system include, but are not limited to, one of the following: reference signal resources, reference signal resource groups, reference signal resource configurations, channel state information (CSI) reports, CSI report sets, terminals, base stations, panels, neural networks, sub-neural networks, neural network layers, precoding matrices, beams, transmission methods, transmission methods, reception methods, modules, models, functional modules, functions, etc. The base station can configure one or a set of resource identifiers for the terminal via higher-layer signaling or physical-layer signaling. The terminal can also send one or a set of resource identifiers to the base station via higher-layer signaling and / or physical-layer signaling.

[0041] In some embodiments, the resource index i can range from 1 to a maximum value D. However, in other embodiments, the resource index i can range from 0 to a maximum value D-1. D is the maximum number of resources. Resources can be one or a group of the aforementioned wireless resources.

[0042] In some embodiments, transmission includes sending or receiving. For example, transmitting data can be understood as sending or receiving data, and transmitting signals can be understood as sending or receiving signals. In some embodiments, physical layer signaling and / or higher layer signaling are also a type of data.

[0043] In some embodiments, communication nodes need to transmit reference signals (RS) to obtain channel state information or perform channel estimation, mobility management, positioning, etc. Here, reference signals include, but are not limited to, channel-state information reference signals (CSI-RS), channel-state information interference measurement (CSI-IM), sounding reference signals (SRS), synchronization signals blocks (SSB), physical broadcast channels (PBCH), and synchronization signal block / physical broadcast channel (SSB / PBCH). In some embodiments, SSB includes synchronization signals blocks and / or physical broadcast channels. In some embodiments, channel state information reference signals include zero-power CSI-RS (ZP CSI-RS) and non-zero-power CSI-RS (NZP CSI-RS). Furthermore, the time-frequency resources used for transmitting reference signals are called reference signal resources. Reference signal resources consist of a set of one or more resource elements (REs), such as CSI-RS resource, SRS resource, CSI-IM resource, SSB resource, etc. Reference signals are transmitted on reference signal resources.

[0044] In some embodiments, to save signaling overhead, multiple reference signal resources may be divided into multiple reference signal resource sets. A reference signal resource set (resource set) can also be called a reference signal resource group, such as a CSI-RS resource set, CSI-IM resource set, SRS resource set, SSB resource set, etc. A reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets can originate from the same reference signal resource setting. The reference signal resource setting can be used to configure parameter information, such as configuring the reference signal resource set. Specifically, a reference signal resource setting (resource setting) includes, but is not limited to, a CSI-RS resource setting, a CSI-IM resource setting, an SRS resource setting, and an SSB resource setting. Here, a CSI-RS resource setting may be merged with a CSI-IM resource setting and both are referred to as a CSI-RS resource setting. A reference signal resource setting can include at least one reference signal resource set. Furthermore, a reference signal resource setting can also be called a reference signal configuration (RS config), such as a CSI-RS resource config, a CSI-IM resource config, an SRS resource config, and an SSB resource config.

[0045] In some embodiments, a time instance represents a time period, such as a time slot, a mini-slot, or a group of symbols. A time slot or mini-slot may include at least one symbol. In one embodiment, a symbol refers to a time unit within a subframe, frame, or time slot, and the unit may be milliseconds, microseconds, nanoseconds, seconds, etc. In one embodiment, a symbol may be an orthogonal frequency division multiplexing (OFDM) symbol, a single-carrier frequency division multiple access (SC-FDMA) symbol, an orthogonal frequency division multiple access (OFDMA) symbol, or symbols corresponding to various waveforms in future communication systems, etc. In some embodiments, the time slot may be replaced by a time instance, a mini-slot, etc.

[0046] In some embodiments, the transmission unit carrying a modulation symbol is a resource element (RE), where RE is the minimum hourly frequency resource used to transmit a modulation symbol, including a subcarrier and radio resources on the symbol. The hourly frequency resources consisting of one or more subcarriers on one or more symbols constitute a physical resource block (PRB). In one embodiment, the hourly frequency resources corresponding to S1 consecutive symbols and C1 consecutive subcarriers constitute a physical resource block, where S1 and C1 are positive integers, such as 14 and 12 respectively.

[0047] In some embodiments, threshold values, or preset threshold values, are required. These threshold values ​​can be at least one of the following: real numbers, positive integers, integers, Boolean values, characters, or strings. The threshold values ​​can be agreed upon by the base station and the terminal, or be default values, or empirical values ​​obtained from simulation or practice, or values ​​indicated to each other by communication nodes through higher-layer and / or physical-layer signaling. For ease of distinction, a first threshold, a second threshold, etc., can be included; these are only used to distinguish different threshold values, not for ordering. In other embodiments, thresholds can be replaced by threshold groups, each threshold group including one or more thresholds.

[0048] In some embodiments, the communication node selects an information processing method to process the received information, thereby obtaining an information processing result. In some embodiments, the processing result includes one or more channel state information, or one or more beam parameter information. In one embodiment, the information can be obtained based on a received reference signal, including but not limited to at least one of the following: channel information, angle information, and position information.

[0049] In some embodiments, channel information is information obtained from a reference signal (such as CSI-RS) to describe the channel environment between communication nodes. In one embodiment, channel information is a complex matrix, which may be called a channel matrix. The size of the channel matrix is ​​related to the number of transmit antennas Nt, the number of receive antennas Nr, and the number of resource elements. For example, there is at least one Nr*Nt channel matrix on a physical resource block (PRB).

[0050] In some embodiments, the channel information may include at least one of the following: time-domain channel information, frequency-domain channel information, one or more eigenvectors of the correlation matrix corresponding to the time-domain channel information, one or more singular vectors of the correlation matrix corresponding to the time-domain channel information, one or more eigenvectors of the correlation matrix corresponding to the frequency-domain channel information, one or more singular vectors of the correlation matrix corresponding to the frequency-domain channel information, a precoding matrix corresponding to the frequency-domain channel, a precoding matrix corresponding to the time-domain channel, one or more codewords corresponding to the frequency-domain channel, and one or more codewords corresponding to the time-domain channel. Here, both the time-domain channel information and the frequency-domain channel information can represent information describing channel characteristics between at least one transmit antenna and at least one receive antenna, and can be a matrix or a multi-dimensional array or matrix.

[0051] In some embodiments, a vector can also be referred to as a matrix. A matrix can also be replaced by concepts such as tensors and arrays.

[0052] In some embodiments, partial channel state information includes at least one of the following: channel state information on partial ports, channel state information on partial resource elements, and channel state information on partial layers.

[0053] In some embodiments, the total channel state information includes at least one of the following: channel state information on all ports, channel state information on all resource elements, and channel state information on all layers.

[0054] In some embodiments, the information processing methods include at least linear and nonlinear information processing methods. Here, nonlinear information processing methods include, but are not limited to, various advanced information processing technologies, such as artificial intelligence (AI). In some embodiments, for ease of description, nonlinear information processing methods are also referred to as first-type information processing methods, and linear information processing methods are also referred to as second-type information processing methods.

[0055] In one embodiment, an information processing method corresponds to an information processing technology. In one embodiment, an information processing method corresponds to a model. In one embodiment, an information processing method corresponds to a function.

[0056] In some embodiments, artificial intelligence includes self-learning devices, components, software, modules, models, functional modules, and functional functions such as machine learning (ML), deep learning, reinforcement learning, transfer learning, deep reinforcement learning, and meta-learning. In some embodiments, artificial intelligence is implemented through an artificial intelligence network (or neural network), which includes multiple layers, each layer including at least one node (a node in the neural network). In one embodiment, the neural network includes an input layer, an output layer, and at least one hidden layer.

[0057] In some embodiments, a model refers to the data flow from input to output of a sample through multiple linear or nonlinear components. The model includes neural network models, non-AI modules for processing information, and functional components or functions that map input information to output information, where the mapping includes linear and nonlinear mappings. In some embodiments, each model corresponds to a model identity (Model ID). In some embodiments, the model identity may also have other equivalent names or concepts such as: model index, first identifier, function indicator (ID), model indicator, etc. In some embodiments, the model or function is bound to a resource, such as a reference signal resource, so the model identity can also be replaced by a resource identifier, reference signal resource identifier, etc. In some embodiments, the model or function is bound to a transmission method, so the model identity can also be replaced by a transmission method identifier. In one embodiment, the transmission method includes, but is not limited to, at least one of the following: open-loop transmission, closed-loop transmission, multi-node joint transmission, single-stream transmission, multi-stream transmission, spatial diversity transmission, spatial multiplexing transmission, etc. In some embodiments, the model or function is bound to an information processing method, so the model identity can also be replaced by an information processing method identifier.

[0058] In some embodiments, the model includes a model structure and model parameters. For example, the model can be a neural network model (or a neural network), which can consist of a neural network model structure and neural network model parameters, used to describe the structure of the neural network and the parameter values ​​of the neural network, respectively. One model structure can correspond to multiple model parameters; that is, the model structures can be the same, but the corresponding model parameter values ​​can be different.

[0059] In some embodiments, a communication node sends a functionality or function index to another communication node, informing the other node that the functionality can be used to process information. Here, a functionality can also be referred to as a functional module, functional function, functional mapping, etc., to describe the characteristics or type of information processing method. Function types include various types, such as those for positioning, beam management, CSI prediction, beam prediction, channel estimation, etc. The characteristics of a function include, but are not limited to, descriptions of the scenarios to which the function is adapted, descriptions of input parameters, and descriptions of output parameters. Here, one function corresponds to one or more information processing methods, and each information processing method can be implemented using one or more models. Alternatively, one function can be implemented using one or more models.

[0060] In some embodiments, a sample includes P features and Q labels. Here, P is a positive integer, and Q is an integer greater than or equal to 0. Multiple samples constitute a dataset.

[0061] In some embodiments, channel-state information (CSI) includes downlink channel state information and uplink channel state information, referred to as downlink channel state information and uplink channel state information, respectively.

[0062] In some embodiments, downlink channel state information includes, but is not limited to, at least one of the following: channel state information - reference signal resource indicator (CSI-RS resource indicator, CRI), synchronization signals block resource indicator (SSBRI), L1 reference signal received power (L1-RSRP), differential RSRP (differential L1-RSRP), L1 signal-to-interference noise ratio (L1-SINR), differential L1-SINR (differential L1-SINR), reference signal received quality (RSRQ), differential RSRQ, channel quality indicator (CQI), wideband CQI, subband CQI, precoding matrix indicator (PMI), layer indicator (LI), rank indicator (RI), precoding information, channel information, capability index, and time-domain channel properties (TDCP).

[0063] In some embodiments, L1-RSRP or differential RSRP is collectively referred to as L1-RSRP, or simply RSRP. In some embodiments, L1-SINR or differential SINR is collectively referred to as L1-SINR, or simply SINR.

[0064] In some embodiments, the uplink channel state information includes, but is not limited to, at least one of the following: uplink sounding signal resource indicator (SRS resource indicator, SRI), uplink sounding signal resource set indicator (SRSI), transmitted precoding matrix indicator (TPMI), transmitted rank indicator (TRI), and modulation and coding scheme (MCS). Additionally, TPMI and TRI may be jointly coded using precoding information and the number of layers (PINL) from downlink control information (DCI).

[0065] In some embodiments, the precoding information includes linear precoding information and nonlinear precoding information. The precoding information may include the precoding itself or the corresponding quantization value, precoding matrix indicators (PMIs) for various subbands or widebands, etc.

[0066] In some embodiments, the nonlinear precoding information is precoding information implemented in a nonlinear manner, such as precoding information obtained based on AI and other technologies, including CSI generated by compression based on at least one dimension of space-time-frequency, such as channel state information generated based on space-frequency joint compression and channel state information generated based on space-time-frequency joint compression.

[0067] In some embodiments, the linear precoding information is conventional precoding information generated using linear techniques, such as codebook-based precoding information, or various DFT-based vector-based codebook acquisition techniques. In one embodiment, the codebook can be the codebook for N antennas in LTE, where N is a positive integer greater than 2. In one embodiment, the codebook includes, but is not limited to, one of the following codebooks in NR: type I codebook, type II codebook, type II port selection codebook, enhanced type II codebook, enhanced type II selection codebook, further enhanced type II selection codebook, Doppler codebook, coherent joint transmission (CJT) codebook, etc. In one embodiment, it can also be a codebook generated using linear techniques by a future wireless communication system, such as various DFT-based codebooks. The precoding matrix indicator PMI in this disclosure is one type of codebook-based precoding information.

[0068] In some instances, location information includes, but is not limited to, at least one of the following: transmission time-related information, angle-related information, received reference signal quality-related information, multipath-related information, and the coordinates of the first node (including absolute and relative coordinates).

[0069] In some embodiments, angle-related information includes at least one of the following: angle of arrival (AoA), angle of departure (AOD), zenith angle of arrival (ZOA), and azimuth angle of departure (AOD), wherein the angle of departure includes the zenith angle of departure (ZOD) and the azimuth angle of departure (AOA).

[0070] Channel rank can also be replaced by one of the following concepts: layer, codeword, transport layer, rank, row / column, number of receive antennas, number of transmit antennas, number of reference signal ports, number of transmit ports, number of receive ports, etc. Further details will not be provided in other embodiments.

[0071] In some embodiments, the statistical value of a set of numbers refers to calculating one of the following from the set of numbers: weighted average, geometric mean, harmonic mean, arithmetic mean, maximum value, minimum value, and variance. In other embodiments, the set of numbers is replaced by a set of parameters, or one or more parameter values. Further details will not be provided below.

[0072] In some embodiments, the two ports satisfy a quasi-co-located (QCL) relationship, meaning that large-scale information of one port can be derived from the large-scale information of the other port. Large-scale information includes, but is not limited to, at least one of the following: Doppler shift, Doppler spread, average delay, delay spread, and spatial rx parameter.

[0073] The spatial parameters described in the embodiments of the present invention include at least one of the following parameters: quasi-co-located reference signal, quasi-co-located reference signal associated with spatial reception parameters, spatial transmission filter, spatial relationship reference signal, and quasi-co-located parameter. Here, the quasi-co-located parameter includes at least one of the following: quasi-co-located (QCL), transmission configuration indicator (TCI), transmission configuration indicator state (TCI state), TCI state group, QCL Type D, receive beam group, transmit beam group, receive beam, transmit beam, and spatial rx parameter.

[0074] In some embodiments, transmitting CSI means transmitting the CSI over uplink transport resources. In one embodiment, sending CSI in a CSI report means transmitting the CSI in the transport resources configured in the CSI report.

[0075] In some embodiments, to transmit measurement results, such as channel state information, at the physical layer, the communication node needs to configure a report (e.g., a CSI report or CSI report configuration). This report defines at least one of the following parameters: time-frequency resources used for transmitting measurement results, report quantity, report configuration type, channel measurement resources, interference measurement resources, and measurement bandwidth. The report can be transmitted on uplink resources, including PUSCH and PUCCH, and the report configuration type includes periodic reports (e.g., periodic CSI report, P-CSI), aperiodic reports (e.g., aperiodic CSI report, AP-CSI), and semi-persistent reports (e.g., semi-persistent CSI report, SP-CSI).

[0076] In some embodiments, the antenna is a physical antenna. In some embodiments, the antenna is a logical antenna. In some embodiments, the port and antenna, antenna port, reference signal port, and pilot port are interchangeable. In some embodiments, the antenna is a transmitting antenna. In some embodiments, the antenna is a receiving antenna. In some embodiments, the antenna includes an antenna pair consisting of a transmitting antenna and a receiving antenna.

[0077] The above is an introduction to the technical terms involved in the embodiments of this disclosure, which will not be repeated below.

[0078] Currently, the overhead of the reference signal can be reduced by decreasing the reference signal density in the time, frequency, and spatial domains. However, reducing the reference signal density may result in a performance penalty.

[0079] In view of this, the present disclosure provides a method for transmitting channel state information, comprising: receiving a first signaling; determining N reference signal resources according to the first signaling; the N reference signal resources corresponding to N channel state information; here, the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N; determining a first channel state information according to one or more of the N channel state information; generating a channel state information report according to the first channel state information; and transmitting the channel state information report.

[0080] This approach allows for the combination of multiple reference signals to acquire channel state information, thereby improving the accuracy of channel state information acquisition. These multiple reference signals are based on the same signaling indication. By combining multiple reference signals, multiple channel information pieces are obtained, leading to a more accurate first channel state information. For example, multiple channel information pieces can be obtained using reference signals from different time domains, frequency domains, and links. By integrating these multiple channel information pieces from different perspectives, the accuracy of the channel state information can be improved, thus enhancing the performance of the communication system.

[0081] The technical solutions provided by the embodiments of this disclosure can be applied to various mobile communication networks, including but not limited to third-generation mobile communication technology (3G), fourth-generation mobile communication technology (4G), fifth-generation mobile communication technology (5G), and future mobile communication networks, such as 6G and 7G. The network architecture may include network-side equipment (e.g., including but not limited to base stations) and receiving-side equipment (e.g., including but not limited to terminals). The first communication node and the second communication node can be either a base station or a terminal. The first communication node and the second communication node can be abbreviated as the first node and the second node, respectively. In one embodiment, the first communication node is a base station and the second communication node is a terminal. In another embodiment, the first communication node is a base station and the second communication node is a base station. In yet another embodiment, the first communication node is a terminal and the second communication node is a base station. In some embodiments, the communication node includes the first node and / or the second node. In some embodiments, the communication node can also be abbreviated as a node, and the node can be either the first node or the second node.

[0082] For example, taking a first communication node as a terminal and a second communication node as a base station, Figure 1 shows an architecture diagram of a communication system according to some embodiments. This communication system includes a terminal 10 and a base station 20. There can be one or more terminals 10 and base stations 20; the number is not limited. Here, multiple base stations and multiple terminals can communicate with each other. Here, a base station can provide network services to terminals in one cell, or it can simultaneously provide network services to terminals in multiple cells.

[0083] In some embodiments, terminal 10 can be a device with wireless transceiver capabilities, which can be deployed on land, such as indoors or outdoors; on water (such as on a ship); or in the air (such as on an airplane, balloon, satellite, or drone). The terminal can be a mobile phone, tablet, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments of this application do not limit the application scenario. A terminal may sometimes also be referred to as a user, user equipment (UE), UE unit, UE station, mobile station, mobile device, UE agent, or UE device, etc., and the embodiments of this application do not limit this.

[0084] For example, any terminal included in this disclosure can be terminal 10 in FIG1.

[0085] In some embodiments, base station 20 may include various network-side devices such as macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or primary cells and secondary cells in various wireless systems.

[0086] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not limited. In addition to the devices shown in Figure 1, the communication system may also include other devices, such as relay nodes.

[0087] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0088] The embodiments provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0089] As shown in Figure 2, this disclosure provides a method for transmitting channel state information, the method comprising:

[0090] S101, Receive the first signaling.

[0091] S102. N reference signal resources are determined according to the first signaling, and the N reference signal resources correspond to N channel state information.

[0092] Here, the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N.

[0093] For example, a wireless communication system includes one or more base stations and one or more terminals. Here, each base station includes one or more antennas, and each terminal may include one or more antennas. In one embodiment, a communication node (base station or terminal) transmits a first signaling message for indicating N reference signal resources.

[0094] In one embodiment, the first signaling is used to indicate N reference signal resources. Here, "indicate" can be replaced by one of the following: the first signaling indicates N reference signal resources, the first signaling activates N reference signal resources, the first signaling triggers N reference signal resources, or the first signaling is used to trigger or activate N reference signal resources. Further details are omitted in other embodiments. Here, N is an integer greater than 1. The communication node determines the N reference signal resources for transmitting reference signals based on these N reference signal resources. Reference signals are transmitted on these N reference signal resources, and N channel state information (CSI1, ..., CSIN) are obtained by measuring these N reference signals. The final CSI (first CSI) is determined based on CSI1, ..., CSIN.

[0095] In some embodiments, the N reference signals include at least a first reference signal and a second reference signal, satisfying at least one of the following:

[0096] The transmission unit corresponding to the first reference signal is different from the transmission unit corresponding to the second reference signal;

[0097] The frequency domain units corresponding to the first reference signal and the second reference signal are different;

[0098] The time-domain unit corresponding to the first reference signal is different from the time-domain unit corresponding to the second reference signal;

[0099] The port index corresponding to the first reference signal is different from the port index corresponding to the second reference signal;

[0100] The number of ports corresponding to the first reference signal is different from the number of ports corresponding to the second reference signal.

[0101] For example, the first reference signal is transmitted on the first reference signal resource, and the second reference signal is transmitted on the second reference signal resource; the first reference signal is transmitted on the first transmission unit, and the second reference signal is transmitted on the second transmission unit; and / or, the first reference signal is transmitted on the first frequency domain unit, and the second reference signal is transmitted on the second frequency domain unit.

[0102] In one example, the first transmission unit and the second transmission unit are the same, as are the first frequency domain unit and the second frequency domain unit. However, the two different reference signals correspond to different reference signal ports, different reference signal sequences, or different code division multiplexing (CDM) groups.

[0103] In another example, the first transmission unit and the second transmission unit are the same, but the first frequency domain unit and the second frequency domain unit are different.

[0104] In another example, the first transmission unit and the second transmission unit are different, while the first frequency domain unit and the second frequency domain unit are the same.

[0105] In another example, the first transmission unit and the second transmission unit are different, as are the first frequency domain unit and the second frequency domain unit.

[0106] In another example, the first frequency domain unit and the second frequency domain unit correspond to different bandwidths. For instance, the bandwidth of the first frequency domain unit is greater than that of the second frequency domain unit.

[0107] In some embodiments, a frequency domain unit (such as the first frequency domain unit or the second frequency domain unit described above) includes at least one of the following: a subband, a physical resource block, a bandwidth part (BWP), a carrier, and a component carrier (CC).

[0108] In some embodiments, the number of ports corresponding to N1 first-type channel state information is less than or equal to the first channel state information, and / or the number of ports corresponding to N2 second-type channel state information is less than or equal to the first channel state information.

[0109] In some embodiments, the transmission unit (e.g., the first transmission unit or the second transmission unit described above) includes an uplink transmission unit and a downlink transmission unit. The uplink or downlink transmission unit corresponds to one of the following transmission entities for uplink and downlink, respectively: an antenna panel, a panel, a sub-panel, a port group, and a port subgroup. Here, a port group includes at least one port, and the port group includes a port group corresponding to a transmission reception point (TRP), a port group corresponding to a panel, etc. The port group can also be replaced by an antenna group.

[0110] In some embodiments, the uplink transmission unit may be used to transmit at least one of the following: a physical uplink shared channel, a physical uplink control channel, and an uplink reference signal. The downlink transmission unit is used to transmit at least one of the following: a physical downlink shared channel, a physical downlink control channel, and a downlink reference signal.

[0111] In some embodiments, the transmission element index may include one of the following: antenna panel index, panel index, sub-panel index, port group index, and sub-port group index. In some embodiments, a transmission element corresponds to a reference signal resource; therefore, the transmission element index may also be replaced by its corresponding reference signal resource index or reference signal resource set index.

[0112] In some embodiments, at least two of the N1 first-type reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups; and / or,

[0113] Among the N2 type II reference signals, at least two type II reference signals correspond to at least one of the following: port, panel, bandwidth portion, component carrier, carrier, and physical resource block group.

[0114] For example, a single base station may transmit two reference signals, but they correspond to different ports. For instance, one CSI-RS might correspond to ports 1-16, and the other to ports 17-32. Alternatively, the same base station may transmit two reference signals, but they correspond to different panels, different CCs, different BWPs, or different RB groups. For example, one CSI-RS might correspond to panel 1, and the other to panel 2. Another example is one CSI-RS corresponding to BWP1, and the other to BWP2. Yet another example is one CSI-RS corresponding to CC1, and the other to CC2. Finally, one CSI-RS might correspond to RB group 1, and the other to RB group 2. In some embodiments, the two reference signals here can be first-type reference signals.

[0115] For example, the same terminal transmits two reference signals, but they correspond to different ports. For instance, one SRS corresponds to ports 1-16, and the other to ports 17-32. Or, the same terminal transmits two reference signals, but they correspond to different panels, different CCs, different BWPs, or different RB groups. For example, one SRS corresponds to panel 1, and the other to panel 2. Another example is one SRS corresponding to BWP1, and the other to BWP2. Yet another example is one SRS corresponding to CC1, and the other to CC2. Finally, one SRS corresponds to RB group 1, and the other to RB group 2. In some embodiments, the two reference signals here can be second-type reference signals.

[0116] In one embodiment, of the two reference signals, one is a first-type reference signal (e.g., CSI-RS) transmitted by the base station, and the other is a second-type reference signal (e.g., SRS) transmitted by the terminal. In some embodiments, one of the two reference signals is a first-type reference signal, and the other can be a second-type reference signal.

[0117] In some embodiments, the first signaling includes at least one of the following: RRC, MAC CE, DCI.

[0118] For example, the first signaling may satisfy at least one of the following:

[0119] The first signaling is one or more fields of the RRC;

[0120] The first signaling is one or more fields of MAC CE;

[0121] The first signaling is one or more fields in the DCI, in which case the first signaling is physical layer signaling;

[0122] The first signaling is at least one field in the RRC and at least one field in the MAC CE;

[0123] The first signaling is at least one field in the RRC and at least one field in the DCI;

[0124] The first signaling is at least one field in MAC CE and at least one field in DCI;

[0125] The first signaling is at least one field in the RRC and at least one field in the MAC CE, and at least one field in the DCI.

[0126] In one example, the first signaling is a combination of RRC and DCI. For instance, N0 reference signal resource configurations can be configured via RRC, and N reference signal resource configurations among the N0 reference signal resource configurations can be indicated via DCI.

[0127] In another example, the first signaling is a combination of RRC and MAC CE. For instance, N0 reference signal resource configurations can be configured via RRC, and N reference signal resource configurations can be indicated via MAC CE.

[0128] In another example, the first signaling is a combination of DCI and MAC CE. For instance, N0 reference signal resource configurations can be configured via MAC CE, and N reference signal resource configurations can be indicated via DCI.

[0129] In another example, the first signaling is a combination of RRC, DCI, and MAC CE. For instance, N0 reference signal resource configurations can be configured via RRC, N1 reference signal resource configurations can be activated via MAC CE, and N reference signal resource configurations can be indicated via DCI.

[0130] In some embodiments, the reference signal can be a periodic signal, a semi-continuous signal, or a periodic signal. For a non-periodic signal, a DCI trigger can be used; for a semi-continuous signal, MAC CE or DCI activation and deactivation can be used; and for a periodic signal, RRC configuration can be used.

[0131] In some embodiments, the aforementioned N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources. Here, the sum of N1 and N2 is N. Furthermore, N1 and N2 are non-negative integers, and N1 + N2 > 1.

[0132] In some embodiments, the terminal device may also transmit N2 second-type reference signals on N2 second-type reference signal resources, and the N2 second-type reference signals correspond to N2 second-type channel state information.

[0133] And / or, the terminal device may also receive N1 first reference signals on N1 first type reference signal resources; and obtain N1 first type channel state information based on the N1 first reference signals.

[0134] In one example, the aforementioned N1 Type I reference signals are reference signals transmitted from the base station to the terminal. The terminal receives the reference signals on the N1 Type I reference signal resources and measures the Type I reference signals to obtain N1 CSIs (Type I Channel State Information), namely CSI1, ..., CSI2. N1In one embodiment, the reference signal transmitted by the base station includes, but is not limited to, one of the following: SSB, CSI-RS, and positioning reference signal (PRS). In other embodiments, for ease of description, the channel state information obtained based on the first type of reference signal is referred to as first type channel state information.

[0135] In some embodiments, each of the N channel state information includes at least one uplink channel state information and / or at least one downlink channel state information.

[0136] For example, CSI1, ..., CSI N1 Each channel state information in the document may include one or more downlink channel state information items. In some embodiments, the downlink channel state information includes at least one of the following:

[0137] Channel State Information - Reference Signal Resource Indicator (CRI), Rank Indicator (RI), Layer Indicator (LI), Wideband Channel Quality Indicator (CQI), at least one subband CQI, Layer 1 Reference Signal Received Power (L1-RSRP), at least one differential L1-RSRP, Layer 1 Reference Signal Interference-to-Noise Ratio (L1-SINR), at least one differential L1-SINR, Probability, Layer 1 Reference Signal Received Quality (L1-RSRQ), at least one differential L1-RSRQ, Downlink Channel Information, at least one downlink nonlinear precoding information, at least one downlink linear precoding information.

[0138] In another example, the aforementioned N2 Type II reference signals are reference signals sent by the terminal to the base station. The terminal transmits N2 reference signals on the N2 reference signal resources, and the base station receives the reference signals on the N2 reference signal resources and measures the reference signals to obtain N2 Channel State Information (CSI). 1+N1 CSI N1+N2 In one embodiment, the reference signal transmitted by the terminal includes, but is not limited to, one of the following: SRS, PRS. In other embodiments, for ease of description, the channel state information obtained based on the second type of reference signal is referred to as second type channel state information.

[0139] For example, CSI 1+N1 CSI N1+N2 Each channel state information in the data may include, but is not limited to, any one or more of the following uplink channel state information: SRI, SRSI, TRI, TPMI, PINL, subband CQI, and wideband CQI.

[0140] In some embodiments, the terminal device may receive at least one of N2 second-type channel state information via second signaling, where the second signaling is higher-layer signaling and / or physical-layer signaling.

[0141] For example, the search space of the first signaling is the same as the search space of the second signaling, and / or the control resource set of the first signaling is the same as the control resource set of the second signaling.

[0142] For example, the base station can use DCI (Second Signaling) to transmit the obtained N2 Type II Channel State Information (i.e., CSI) 1+N1 CSI N1+N2 One or more channel state information from the N2 types of second-type channel state information are transmitted to the terminal via physical layer signaling (e.g., DCI). The terminal obtains one or more channel state information from the N2 types of second-type channel state information by receiving the physical layer signaling.

[0143] In some embodiments, the terminal can acquire N1 first-type channel state information (i.e., CSI1, ..., CSI2) N1 At least one type of channel state information (CSI1, ..., CSI2) is sent to the base station. The base station receives N1 types of first-class channel state information (i.e., CSI1, ..., CSI2) sent by the terminal. N1 At least one channel state information in the N1 channels. In other embodiments, for ease of description, the N1 channels state information are referred to as the first type of CSI.

[0144] In some embodiments, the first signaling satisfies any one of the following:

[0145] The first signaling is used to indicate N1 first-class reference signal resources, where N1 = N;

[0146] The first signaling is used to indicate N2 type 2 reference signal resources, where N2 = N;

[0147] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, where N1 and N2 are positive integers;

[0148] The first signaling is used to instruct the N2 Type II reference signal resources and channel state information reports;

[0149] The first signaling is used to instruct the N1 Type I reference signal resources and channel state information reports;

[0150] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, as well as channel state information reports, where N1 and N2 are positive integers.

[0151] In other embodiments, the first signaling used to indicate N1 first-type reference signal resources can also be replaced with the first signaling used to indicate N1 first-type reference signals, and the first signaling used to indicate N2 second-type reference signal resources can also be replaced with the first signaling used to indicate N2 second-type reference signals, which will not be described in detail below.

[0152] In one example, the first signaling is used only to indicate N2 Type II reference signal resources and / or N1 Type I reference signal resources. Alternatively, the first signaling is used only to indicate N2 Type II reference signals and / or N1 Type I reference signals.

[0153] In another example, the first signaling can be used to indicate N2 Type 2 reference signal resources and at least one CSI report. Alternatively, the first signaling can be used to indicate N2 Type 2 reference signals and at least one CSI report. Exemplarily, N1 Type 1 reference signal resources or N1 Type 1 reference signals can be indicated by other signaling.

[0154] In another example, the first signaling can be used to indicate N1 first-type reference signal resources and N2 second-type reference signal resources, and also to indicate at least one channel state information report. Alternatively, the first signaling can be used to indicate N1 first-type reference signals and N2 second-type reference signals, and also to indicate at least one channel state information report.

[0155] In some embodiments, the at least one channel state information report described above can be used to transmit N1 first-type channel state information (i.e., CSI1, ..., CSI2) N1 ), or used for transmission according to CSI1, ..., CSI N1 Determined channel state information (e.g., the first channel state information mentioned above).

[0156] In one embodiment, the aforementioned CSI1, ..., CSI N1 At least one of the components is channel information, denoted as H. In one embodiment, it is a complex matrix related to the number of transmit antennas, the number of receive antennas (or layers), and physical resource blocks (or subbands or subcarriers). In one embodiment, each element of H is directly quantized to obtain the quantized CSI. In one embodiment, H is transformed to the time domain and then compressed by an encoder before quantization to obtain the CSI. In another embodiment, H is compressed by an encoder before quantization to obtain the CSI. In this embodiment, the autocorrelation matrix of H on a subband or wideband is directly calculated, and the autocorrelation matrix is ​​quantized to obtain the CSI. Of course, in other embodiments, other nonlinear methods can also be used to compress and quantize H to obtain the CSI, which will not be listed here. The CSI is then transmitted.

[0157] In some embodiments, the first signaling described above can also be used to instruct a group of users on SRS and CSI-RS.

[0158] For example, the first signaling is used to instruct multiple UEs to receive CSI-RS and transmit SRS, where CSI-RS and SRS are aperiodic. Here, the DCI can be divided into multiple blocks, each block corresponding to one UE, and multiple bits in each block are used to indicate whether the UE needs to receive CSI-RS and transmit SRS; for example, assuming that 2 bits in each block are used, then "00" indicates that the UE does not need to receive CSI-RS and transmit SRS, "01" indicates that the UE needs to receive CSI-RS and transmit SRS and the corresponding {CSI-RS resource, SRS resource} resource pair is identified as "id1", "10" indicates that the UE needs to receive CSI-RS and transmit SRS and the corresponding {CSI-RS resource, SRS resource} resource pair is identified as "id2", and "11" indicates that the UE needs to receive CSI-RS and transmit SRS and the corresponding {CSI-RS resource, SRS resource} resource pair is identified as "id3". Here, the aforementioned CSI-RS resource or SRS resource can be a single CSI-RS or SRS resource, or a set of CSI-RS or SRS resources; the {CSI-RS resource, SRS resource} corresponding to different resource pairs are pre-configured to the UE via RRC messages. Here, "block" can also be replaced with a field, and "CSI-RS" can be replaced with "SSB".

[0159] In some embodiments, the method described in step S101 and / or step S102 also satisfies a preset condition.

[0160] S103. Determine the first channel state information based on one or more of the N channel state information.

[0161] In some embodiments, the N channel state information includes N1 first-type channel state information and N2 second-type channel state information.

[0162] In some embodiments, a first channel state information is determined based on one or more channel state information from N channel state information, including any one of the following:

[0163] The first channel state information is determined based on one or more of the N1 first-type channel state information, where N1 is an integer greater than 1;

[0164] The first channel state information is determined based on one or more of the N2 second-type channel state information, where N1 is an integer greater than 1; or,

[0165] The first channel state information is determined based on at least one type of first-class channel state information and at least one type of second-class channel state information; or...

[0166] Under the condition that the preset conditions are met, the first channel state information is determined based on at least one type of first channel state information and at least one type of second channel state information.

[0167] In some embodiments, the preset conditions described in step S101 and / or step S102 and / or step S103 include any one of the following:

[0168] The interval between the transmission time of at least one first-type reference signal and the transmission time of at least one second-type reference signal is less than a first threshold.

[0169] The interval between the transmission time slot of any first-type reference signal and the transmission time of any second-type reference signal is less than a first threshold.

[0170] The interval between the transmission time of the last reference signal among the N1 first-class reference signals and the transmission time of the last reference signal among the N2 second-class reference signals is less than a first threshold.

[0171] The time between the transmission time of the first reference signal among the N1 first-class reference signals and the transmission time of the first reference signal among the N2 second-class reference signals is less than a first threshold.

[0172] The interval between the transmission time of the last reference signal in N1 first-class reference signals and the first reference signal in N2 second-class reference signals is less than a first threshold.

[0173] Here, the first threshold is a positive integer or a positive real number.

[0174] In some embodiments, the aforementioned transmission time may also be replaced by time slots, sub-time slots, symbols, subframes, etc.

[0175] For example, the first signaling described above is used to indicate N1 first-type reference signals (resources) and N2 second-type reference signals (resources). Here, the transmission time slots of the N1 first-type reference signals or the time slots corresponding to the N1 first-type reference signal resources are T, respectively. F,i The transmission time slots of the N2 second-type reference signals or the time slots corresponding to the N2 second-type reference signal resources are respectively T S,j Here, T F,i and T S,j T is a real number. In some embodiments, T F,i and T S,j They can be integers, i = 1, ..., N1, j = 1, ..., N2.

[0176] For any values of i and j, |T F,i - T S,j | < T1, where T1 is the first threshold mentioned above. That is, at this time, the above preset condition is satisfied, and the first channel state information is determined according to at least one first type of channel state information and at least one second type of channel state information. Otherwise, the first channel state information can also be determined only according to at least one first type of channel state information. At this time, the terminal may not transmit the SRS, or the base station may not receive the SRS.

[0177] In some embodiments, since the SRS is transmitted in a narrowband, only a part of the SRS that meets the time interval requirement can be taken for jointly obtaining the first channel state information.

[0178] For example, T1 (the first threshold) is a positive real number, and can be transmitted from the base station to the terminal, or is the default value of the terminal, or is the value agreed upon by the base station and the terminal. In other embodiments, it will not be elaborated here.

[0179] In one example, when N2 = 1, for any i, |T F,i - T S,1 | < T1 can be satisfied, so that at least one first type of channel state information and one second type of channel state information can be jointly used to determine the first channel state information. Otherwise, the first type of channel state information can also be determined only according to at least one first type of channel state information, or the first channel state information can be determined by jointly using at least one first type of channel state information and one second type of channel state information that meet the threshold requirement.

[0180] In another example, when N2 = N1 = 1, |T F,1 - T S,1 | < T1, so that at least one first type of channel state information and one second type of channel state information can be jointly used to determine the first channel state information. Otherwise, the first channel state information can also be determined only according to at least one first type of channel state information. In some embodiments, |*| represents the absolute value of a real number or a complex number*, and will not be elaborated further hereinafter.

[0181] In some embodiments, the preset condition includes any one of the following:

[0182] The interval between the transmission time of the channel state information report and the transmission time of at least one reference signal of the N2 second type of reference signals is less than the second threshold;

[0183] The interval between the transmission time of the channel state information report and the transmission time of any one of the N2 second type of reference signals is less than the second threshold;

[0184] The interval between the transmission time of the channel state information report and the transmission time of the first reference signal among N2 second - type reference signals is less than a second threshold;

[0185] The interval between the transmission time of the channel state information report and the transmission time of the last reference signal among N2 second - type reference signals is less than a second threshold;

[0186] Here, the second threshold is a positive integer or a positive real number.

[0187] Exemplarily, the above - mentioned first signaling is used to indicate at least one channel state information report and N2 second - type reference signals. The maximum time slot of the transmission time slot of the at least one channel state information report is T R,1 , and the transmission time slots of the N2 second - type reference signals or the time slots corresponding to the N2 second - type reference signal resources are respectively T S,j . Here, T R,1 and T S,j are real numbers. In some embodiments, T R,1 and T S,j are integers, j = 1,..., N2.

[0188] For any value of j, it can satisfy |T R,1 -T S,j |<T2, where T2 can be the above - mentioned second threshold. Thus, at least one first - type channel state information and one second - type channel state information can be jointly used to determine the first channel state information. Otherwise, the first channel state information can also be determined only based on at least one first - type channel state information. In other embodiments, sometimes the first channel state information is also referred to as the third - type channel state information, which will not be elaborated one by one hereinafter.

[0189] In some embodiments, T2 (the second threshold) is a positive real number, and can be transmitted by the base station to the terminal, or is the default value of the terminal, or is the value agreed upon by the base station and the terminal. In other embodiments, it will not be elaborated.

[0190] In a possible example, N2 = 1. At this time, it can satisfy |T R,1 -T S,1 |<T2. Thus, at least one first - type channel state information and one second - type channel state information can be jointly used to determine the first channel state information. Otherwise, the first channel state information can also be determined only based on at least one first - type channel state information.

[0191] In some embodiments, the preset condition includes any one of the following:

[0192] The interval between the transmission time of the first signaling and the transmission time of at least one reference signal among N2 second - type reference signals is less than a third threshold;

[0193] The interval between the transmission time of the first signaling and the transmission time of any one of the N2 second - type reference signals is less than a third threshold;

[0194] The interval between the transmission time of the first signaling and the transmission time of the first reference signal among the N2 second - type reference signals is less than a third threshold;

[0195] The interval between the transmission time of the first signaling and the transmission time of the last reference signal among the N2 second - type reference signals is less than a third threshold;

[0196] Here, the third threshold is a positive integer or a positive real number.

[0197] Exemplarily, the above - mentioned first signaling is used to indicate N1 first - type reference signals (resources) and N2 second - type reference signals (resources). Here, the transmission time slot of the first signaling is T C,1 , and the transmission time slots of the N2 second - type reference signals or the time slots corresponding to the N2 second - type reference signal resources are respectively T S,j . Here, T C,1 and T S,j are real numbers. In some embodiments, T C,1 and T S,j can be integers, j = 1,..., N2.

[0198] For any value of j, |T C,1 - T S,j | < T3, where T3 is the above - mentioned third threshold. That is, at this time, the above - mentioned preset conditions are met, and the first channel state information is determined according to at least one first - type channel state information and at least one second - type channel state information. Otherwise, the first channel state information can also be determined only according to at least one first - type channel state information.

[0199] For example, T3 (the third threshold) is a positive real number, and can be transmitted by the base station to the terminal, or is the default value of the terminal, or is the value agreed upon by the base station and the terminal. In other embodiments, it will not be elaborated.

[0200] In one example, when N2 = 1, for any i, |T C,1 - T S,1 | < T1 can be satisfied, so that at least one first - type channel state information and one second - type channel state information can be jointly used to determine the first channel state information, that is, the third - type channel state information. Otherwise, the third - type channel state information can also be determined only according to at least one first - type channel state information, or the first channel state information can be determined by jointly using at least one first - type channel state information and one second - type channel state information that meet the threshold requirements.

[0201] In some embodiments, the transmission time slot of the first signaling is T C,1 , and the maximum time slot of the transmission time slots of at least one channel state information report is T R,1 , if |T R,1 - T C,1 | < T5 (the fifth threshold), then at least one type I channel state information and one type II channel state information are jointly used to determine the first channel state information; otherwise, only at least one type I channel state information is used to determine the third type of channel state information. T R,1 and T C,1， T3 are real numbers. In some embodiments, T R,1 and T C,1， T5 can both take integer values.

[0202] In some embodiments, the preset conditions include any one of the following:

[0203] The difference between the frequency domain information corresponding to at least one type I reference signal resource of N1 type I reference signal resources and the frequency domain information corresponding to at least one type I reference signal resource of N2 type II reference signal resources is less than the fourth threshold;

[0204] The difference between the frequency domain information corresponding to any one type I reference signal resource of N1 type I reference signal resources and the frequency domain information corresponding to any one type I reference signal resource of N2 type II reference signal resources is less than the fourth threshold;

[0205] The difference between the frequency domain information corresponding to the last type I reference signal resource of N1 type I reference signal resources and the frequency domain information corresponding to the last type I reference signal resource of N2 type II reference signal resources is less than the fourth threshold;

[0206] The difference between the frequency domain information corresponding to the first type I reference signal resource of N1 type I reference signal resources and the frequency domain information corresponding to the first type I reference signal resource of N2 type II reference signal resources is less than the fourth threshold;

[0207] Here, the fourth threshold is a positive integer or a positive real number.

[0208] In some embodiments, the above frequency domain information includes the central carrier frequency, the frequency point corresponding to the first subcarrier, and the frequency point corresponding to the last subcarrier.

[0209] Exemplarily, the above first signaling is used to indicate N1 type I reference signals and N2 type II reference signals, and the central carrier frequencies corresponding to N1 type I reference signal resources are respectively f F,i , and the central carrier frequencies corresponding to N2 type II reference signal resources are respectively f S,j, where f F,i and f S,j are real numbers, i = 1, …, N1, j = 1, …, N2.

[0210] Here, for any values of i and j, |f F,i - f S,j | < f1, and f1 is also the above-mentioned fourth threshold. Thus, at least one type of first channel state information and one type of second channel state information can be jointly used to determine the first channel state information. Otherwise, the first channel state information can also be determined only based on at least one type of first channel state information.

[0211] In one embodiment, f1 (the fourth threshold) is a positive real number and can be transmitted by the base station to the terminal, or is the default value of the terminal, or is the value agreed upon by the base station and the terminal. In other embodiments, it will not be elaborated.

[0212] In one example, N2 = 1. At this time, for any i, |f F,i - f S,1 | < f1. Thus, at least one type of first channel state information and one type of second channel state information can be jointly used to determine the first channel state information. Otherwise, the third type of channel state information can also be determined only based on at least one type of first channel state information. Or at least one type of first channel state information that meets the threshold requirement and the one type of second channel state information are also jointly used to determine the first channel state information (the first channel state information).

[0213] In another example, N2 = N1 = 1. At this time, |f F,1 - f S,1 | < f1. Thus, at least one type of first channel state information and one type of second channel state information can be jointly used to determine the first channel state information. Otherwise, the first channel state information can also be determined only based on at least one type of first channel state information.

[0214] In other embodiments, the central carrier frequency can also be replaced by one of the following concepts: carrier frequency, center frequency, maximum index of physical resource block, minimum index of physical resource block, middle index of physical resource block, etc.

[0215] In some embodiments, the reference signals corresponding to N reference signal resources satisfy at least one of the following:

[0216] The N1 first type of reference signals have the same spatial parameters;

[0217] The N2 second type of reference signals have the same spatial parameters;

[0218] The N1 type I reference signals and the N2 type II reference signals have the same spatial parameters.

[0219] For example, the aforementioned N1 first-type reference signals have the same spatial parameters. In one embodiment, the N2 second-type reference signals have the same spatial parameters. And / or, the N1 first-type reference signals and the N2 second-type reference signals have the same spatial parameters.

[0220] In some embodiments, the transmission unit that transmits N1 first-type reference signals and the transmission unit that receives N2 second-type reference signals are the same, such as the antenna used by the base station to transmit CSI-RS, which is also used to receive the SRS.

[0221] In some embodiments, the transmission unit that receives N1 first-type reference signals and the transmission unit that transmits N2 second-type reference signals are the same, for example, the antenna used by the terminal to receive CSI-RS is also the antenna used to transmit the SRS.

[0222] In some embodiments, at least two of the N1 first-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources; and / or, at least two of the N2 second-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources.

[0223] For example, among the N1 Type I reference signal resources, at least two Type I reference signal resources belong to the same reference signal resource set or reference signal resource configuration. For instance, CSI-RS Resource1 and CSI-RS Resource2 both come from the same CSI-RS resource set or the same CSI-RS resource setting.

[0224] For example, among the N2 second-type reference signal resources, at least two second-type reference signal resources belong to the same reference signal resource set or reference signal resource configuration. For instance, SRS Resource1 and SRS Resource2 both come from the same SRS resource set or the same SRS resource setting.

[0225] For example, the N1 first-type parameter signal resources, or the first-type parameter signal resource set, or the first-type parameter signal resource configuration, or the CSI report includes one of the following: the ID of one or more second-type reference signal resources, the ID of one or more reference resource sets corresponding to the second-type reference signal resources, or the ID of the reference resource set set corresponding to one or more second-type reference signal resources.

[0226] In some embodiments, the configuration information corresponding to the first type of reference signal resource includes at least one of the following:

[0227] An identifier for at least one type II reference signal resource, an identifier for a reference resource set corresponding to at least one type II reference signal resource, and an identifier for setting the reference resource set corresponding to at least one type II reference signal resource; and / or,

[0228] The configuration information corresponding to the second type of reference signal resources includes at least one of the following:

[0229] The identifier of at least one type I reference signal resource, the identifier of at least one type I reference signal resource corresponding to the reference resource set, the identifier of at least one type I reference signal resource corresponding to the reference resource set setting, and the identifier of the channel state information report.

[0230] For example, the N2 second-type parameter signal resources, or the set of second-type parameter signal resources, or the configuration of second-type parameter signal resources includes one of the following: the ID of one or more first-type reference signal resources, the ID of the reference resource set corresponding to one or more first-type reference signal resources, the ID set by the reference resource set corresponding to one or more first-type reference signal resources, and the CSI report ID.

[0231] In some embodiments, the N1 first-class parameter signal resources can be indicated by a first signaling, and the N2 second-class parameter signal resources can be indicated by other signaling (e.g., a third signaling). The first signaling and the third signaling have the same search space or the same control resource set (CORESET).

[0232] In one implementation, to obtain downlink channel state information, the base station transmits N1 Type I Reference Signals for port P1. The terminal receives the N1 Type I Reference Signals to obtain the CSI1,…,CSI of port P1. N1 Then, using linear or nonlinear methods, the N1 channel state information items are determined as the third type of channel state information (hereinafter referred to as the final channel state information (first channel state information)), synthesized channel state information, or determined channel state information for port P (denoted as CSI). C The terminal sends the CSI. C The base station receives the aforementioned CSI. C And using the aforementioned CSI C Information is transmitted. Here, N1 is an integer greater than 1, and P1 and P are positive integers. In one embodiment, P is greater than or equal to P1.

[0233] In one embodiment, at least two of the N1 first-type reference signals correspond to different downlink transmission units. In another embodiment, at least two of the N1 first-type reference signals correspond to different frequency domain units.

[0234] In one implementation, different downlink transmission units include, but are not limited to, one of the following: different TRPs, different panels, different ports, or different port groups. Other embodiments will not be listed individually.

[0235] In one implementation, different frequency domain units include, but are not limited to, one of the following: different BWPs, different CCs, different subbands, and different PRBs. Other embodiments will not be listed individually.

[0236] In one implementation, to obtain downlink channel state information, the base station transmits N1 Type I Reference Signals (CSIs) for each of the P1 ports. The terminal receives these N1 Type I Reference Signals and obtains the CSI1, ..., CSIs for the N1 P1 ports. N1 And the N1 channel state information items are determined as the third type of channel state information (CSI) for port P using linear or nonlinear methods. C1 The terminal sends the CSI. C1 The base station receives the aforementioned CSI. C1 The terminal sends N2 Type II reference signals to the base station. The base station receives the N2 Type II reference signals and measures the downlink CSI (Cost Indicator Signal) of N2 of the P2 ports. 1+N1 CSI N1+N2 The base station combines CSIC1 and CSI in a linear or non-linear manner. 1+N1 CSI N1+N2 At least one of the following determines the final third type of channel state information (first channel state information) CSI. C The CSIC is used for information transmission. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0237] In one implementation, to obtain downlink channel state information, the base station transmits N1 Type I reference signals for P1 ports. The terminal receives the N1 Type I reference signals to obtain the channel information for the N1 P1 ports, and quantizes them to obtain CSI1,…,CSI1. N1 The terminal sends the CSI1,…,CSI... N1 At least one of them. The base station receives the CSI1,...,CSI. N1At least one of them. The terminal sends N2 Type II reference signals to the base station. The base station receives the N2 Type II reference signals and measures the downlink CSI (i.e., CSI) of the N2 P2 ports. 1+N1 CSI N1+N2 The base station combines CSI1,…,CSI in a linear or non-linear manner. N1 At least one of them and CSI 1+N1 CSI N1+N2 At least one of the following determines the final third type of channel state information (first channel state information) CSI. C and with the CSI C Information is transmitted. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0238] In one implementation, to obtain downlink channel state information, the terminal sends N2 Type II reference signals to the base station. The base station receives the N2 Type II reference signals and measures the N2 downlink CSIs (i.e., CSIs) of the P2 ports. 1+N1 CSI N1+N2 The base station sends the CSI of the P2 port via physical layer signaling. 1+N1 CSI N1+N2 At least one of them. The terminal receives the CSI. 1+N1 CSI N1+N2 At least one of the following. The base station transmits N1 Type I reference signals for P1 ports. The terminal receives the N1 Type I reference signals to obtain the CSI1,…,CSI of the N1 P1 ports. N1 The terminal combines CSI in a linear or non-linear manner. 1+N1 CSI N1+N2 At least one of them and CSI 1+N1 CSI N1+N2 At least one of the following determines the third type of channel state information (CSI). C The CSI is then sent to the base station, which receives the CSI. C This is used for information transmission. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0239] In one implementation, to obtain downlink channel state information, the terminal transmits N2 Type II reference signals. The base station receives the N2 Type II reference signals and measures the downlink CSI (Cross-Signal Interface) of N2 of them at the P2 port. 1+N1 CSI N1+N2The third type of channel state information (CSI) determined as a P-port is obtained through linear or nonlinear methods. C1 The base station sends the CSI of the P port via physical layer signaling. C1 The terminal receives the CSI. C1 The base station transmits N1 first reference signals for P1 ports. The terminal receives the N1 first reference signals and measures the CSI1,…,CSI of the N1 P1 ports. N1 The terminal combines CSIC1 and CSI in a linear or non-linear manner. 1+N1 CSI N1+N2 At least one of them determines the third type of channel state information (CSI). C The CSI is then sent to the base station, which receives the CSI. C This is used for information transmission. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0240] In one implementation, to obtain uplink channel state information (CSI), the terminal transmits N2 Type II reference signals for the P2 ports. The base station receives the N2 Type II reference signals to obtain the uplink channel state information (CSI) for the N2 P2 ports. 1+N1 CSI N1+N2 And the N2 channel state information data are used to determine the third type of channel state information (CSI) for port P using linear or nonlinear methods. C The base station transmits the CSI via physical layer signaling. C The terminal, based on the received CSI... C This is used for uplink information transmission. Here, N1 is an integer greater than 1, and P1 and P are positive integers. In one embodiment, P is greater than or equal to P1.

[0241] In one embodiment, at least two of the N2 second reference signals correspond to different downlink transmission units. In another embodiment, at least two of the N2 second reference signals correspond to different frequency domain units.

[0242] In one implementation, to obtain uplink channel state information (CSI), the terminal transmits N2 Type II reference signals for the P2 ports. The base station receives the N2 Type II reference signals to obtain the uplink channel state information (CSI) for the N2 P2 ports. 1+N1 CSI N1+N2 And by using linear or nonlinear methods, CSI 1+N1 CSI N1+N2 The third type of channel state information (CSI) identified as port P C1The base station transmits the CSI via physical layer signaling. C1 To the terminal. The terminal receives the CSI. C1 The base station transmits N1 first reference signals. The terminal receives the N1 reference signals and obtains uplink channel state information CSI1,…,CSI for N1 P1 ports. N1 The terminal combines CSI in a linear or non-linear manner. C1 and CSI1,…,CSI N1 At least one channel state information in the data determines the third type of channel state information (CSI). C and with the CSI C Information is transmitted. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0243] In one implementation, to obtain uplink channel state information (CSI), the terminal transmits N2 Type II reference signals for the P2 ports. The base station receives the N2 Type II reference signals to obtain the uplink channel state information (CSI) for the N2 P2 ports. 1+N1 CSI N1+N2 The base station transmits the CSI via physical layer signaling. 1+N1 CSI N1+N2 At least one of them. The terminal receives the CSI. 1+N1 CSI N1+N2 At least one of them. The base station transmits N1 reference signals. The terminal receives the N1 reference signals to obtain uplink channel state information CSI1,…,CSI for N1 P1 ports. N1 The terminal combines CSI in a linear or non-linear manner. 1+N1 CSI N1+N2 At least one of them and CSI1,...,CSI N1 At least one of them determines the third type of channel state information (CSI). C and with the CSI C Uplink information transmission is performed. Here, N1 and N2 are integers greater than 0, and P1, P2, and P are positive integers. In one embodiment, P is greater than or equal to P1 and / or P2.

[0244] In some embodiments, the process of obtaining uplink channel state information includes at least the following possible examples:

[0245] In one example, to obtain uplink channel state information, the terminal transmits Type II reference signals for N2 P2 ports. The base station receives these N2 Type II reference signals for P2 ports and measures the uplink CSI (Channel System Index) of the N2 P2 ports. 1+N1 ,…,CSIN1+N2 The base station transmits N1 Type I reference signals. The terminal receives the N1 Type I reference signals and obtains N1 uplink CSI1, ..., CSI1 signals from port P1. N1 The terminal uses linear or non-linear methods to process CSI. 1+N1 CSI N1+N2 At least one channel state information in the data is identified as third-class channel state information (first-class channel state information) CSI. C1 The CSI is then sent to the base station, which receives the CSI. C1 By combining CSI in a linear or nonlinear manner C1 and CSI 1+N1 CSI N1+N2 At least one of them is identified as Category III Channel State Information (CSI) (Channel State Information). C And transmit the CSI via physical layer signaling. C The terminal receives the CSI. C Uplink information transmission is performed. Here, N1 is a positive integer, and P1, P2, and P are positive integers. In some embodiments, P is greater than or equal to P1 and / or P2.

[0246] In another example, to obtain uplink channel state information, the terminal sends Type II reference signals for N2 P2 ports to the base station. The base station receives the Type II reference signals for the N2 P2 ports and measures the uplink CSI (Channel System Index) of the N2 P2 ports. 1+N1 , ...,CSIN 1+N2 The base station transmits N1 Type I reference signals. The terminal receives the N1 Type I reference signals to obtain N1 uplink CSI1,…,CSI signals from port P1. N1 The terminal sends CSI1,…,CSI N1 At least one of the CSI1, ..., CSI1 is given to the base station. The base station receives the CSI1, ..., CSI1. N1 At least one CSI in the list. CSI1, ..., CSI are combined in a linear or non-linear manner. N1 At least one of them and CSI 1+N1 CSI N1+N2 At least one of them determines the third type of channel state information (first channel state information) CSI. C And transmit the CSI via physical layer signaling. C The terminal receives the CSI. C Uplink information transmission is performed. Here, N1 is a positive integer, and P1, P2, and P are positive integers. In some embodiments, P is greater than or equal to P1 and / or P2.

[0247] In some embodiments, P equals P1 and / or P2, generally indicating that the communication node does not perform spatial channel state information prediction, but only performs CSI compression. In some embodiments, P is greater than P1 and / or P2, generally indicating that the communication node performs spatial channel state information prediction, that is, it predicts the channel state information of port P using the channel state information of port P1.

[0248] In some embodiments, the predictions in this disclosure may also be replaced by linear interpolation, nonlinear interpolation, or spatial filtering, etc.

[0249] For example, the base station sends two CSI-RS signals for ports P1=16, which can originate from different RBs or panels. The terminal receives the two CSI-RS signals to obtain CSI1 and CSI2 for ports P1, and uses linear or non-linear methods, such as artificial intelligence models (terminal-side models), to determine CSI1 and CSI2 as a single CSI for port P=64. C The terminal sends the CSI. C The base station receives the CSI. C For use in downlink information transmission.

[0250] For example, the base station sends a CSI-RS with port P1=16. The terminal receives the CSI-RS to obtain a CSI1 with port P1, and uses a linear or non-linear method to determine CSI1 as a CSI with port P=64. C1 The terminal sends the CSI. C1 The terminal sends an SRS, and the base station receives the CSIC1. The base station receives the SRS to obtain a CSI2 for a P2 port, and uses a linear or non-linear method to determine CSIC1 and CSI2 as the CSI. C CSI C Used for downlink information transmission.

[0251] For example, the base station sends a CSI-RS for port P1=16. The terminal receives the CSI-RS and obtains a CSI1 for port P1. The terminal quantizes the CSI1 and sends it to the base station, which receives the CSI1. The terminal sends an SRS, and the base station receives the SRS and obtains a CSI2 for port P2. The base station then uses a linear or non-linear method to determine CSI1 and CSI2 as the CSI. C CSI C Used for downlink information transmission.

[0252] For example, the base station sends a CSI-RS for port P1=16. The terminal receives the CSI-RS and obtains CSI1 for port P1. The terminal sends an SRS, and the base station receives the SRS and obtains CSI2 for port P2, and sends it to the terminal via physical layer signaling. The terminal receives CSI2 and uses a linear or non-linear method to determine CSI1 and CSI2 as CSI. C CSI C It is transmitted to the base station for downlink information transmission.

[0253] For example, the base station sends a CSI-RS for port P1=16. The terminal receives the CSI-RS and obtains a CSI1 for port P1. The terminal sends an SRS, and the base station receives the SRS and obtains a CSI2 for port P2. The base station then determines the CSI2 as the CSI for port P using a linear or non-linear method. C1 And the CSI C1 The CSI is sent to the terminal via physical layer signaling, and the terminal receives the CSI. C1 And use linear or nonlinear methods to combine CSI1 and CSI C1 CSI has been identified. C CSI C It is transmitted to the base station for downlink information transmission.

[0254] Here, examples of using multiple reference signals to jointly obtain uplink channel state information can be given one by one, similar to the downlink examples, and will not be repeated here.

[0255] S104. Generate a channel state information report based on the first channel state information.

[0256] S105, Send channel status information report.

[0257] In some embodiments, steps S104 and S105 can be combined and directly written as sending the first channel state information. Further details will not be provided below.

[0258] Based on the technical solution provided in this disclosure, channel state information can be obtained by combining multiple reference signals, thereby improving the accuracy of obtaining channel state information. The multiple reference signals are based on the same signaling indication. By combining multiple reference signals, multiple channel information is obtained, and a more accurate final channel state information (first channel state information) is obtained from these multiple channel information. For example, multiple channel information can be obtained through reference signals in different time domains, frequency domains, and links, and the final channel state information (first channel state information) is obtained by integrating the multiple channel information from different perspectives, thereby improving the accuracy of channel state information and enhancing the performance of the communication system.

[0259] In some embodiments, as shown in FIG3, this disclosure also provides a method for receiving channel state information, including:

[0260] S201. Send the first signaling, which is used to indicate N reference signal resources, and the N reference signal resources correspond to N channel state information.

[0261] Here, the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0262] In some embodiments, N2 second-type reference signals may be received on N2 second-type reference signal resources; and N2 second-type channel state information may be obtained based on the N2 second-type reference signals.

[0263] In some embodiments, N1 first-type reference signals may be transmitted on N1 first-type reference signal resources, and the N1 first-type reference signals correspond to N1 first-type channel state information.

[0264] In some embodiments, the N reference signals include at least a first reference signal and a second reference signal, satisfying at least one of the following:

[0265] The transmission unit corresponding to the first reference signal is different from the transmission unit corresponding to the second reference signal;

[0266] The frequency domain units corresponding to the first reference signal and the second reference signal are different;

[0267] The time-domain unit corresponding to the first reference signal is different from the time-domain unit corresponding to the second reference signal;

[0268] The port index corresponding to the first reference signal is different from the port index corresponding to the second reference signal;

[0269] The number of ports corresponding to the first reference signal is different from the number of ports corresponding to the second reference signal.

[0270] In some embodiments, at least two of the N1 first-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources; and / or, at least two of the N2 second-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources.

[0271] In some embodiments, at least two of the N1 first-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups; and / or, at least two of the N2 second-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups.

[0272] In some embodiments, the first signaling includes at least one of the following:

[0273] Radio Resource Control (RRC), Media Access Control (MAC) CE, and Downlink Control Information (DCI).

[0274] In some embodiments, the first signaling satisfies at least one of the following:

[0275] The first signaling is one or more fields of the RRC;

[0276] The first signaling is one or more fields of MAC CE;

[0277] The first signaling is one or more fields in the DCI;

[0278] The first signaling is at least one field in the RRC and at least one field in the MAC CE;

[0279] The first signaling is at least one field in the RRC and at least one field in the DCI;

[0280] The first signaling is at least one field in MAC CE and at least one field in DCI;

[0281] The first signaling is at least one field in the RRC and at least one field in the MAC CE, and at least one field in the DCI.

[0282] S202. Receive a channel state information report, wherein the channel state information report includes first channel state information, which is determined based on one or more of N channel state information.

[0283] In some embodiments, N2 types of second-class channel state information can also be sent via second signaling, where the second signaling is higher-layer signaling and / or physical-layer signaling.

[0284] In some embodiments, the search space of the first signaling is the same as the search space of the first signaling, and / or the control resource set of the first signaling is the same as the control resource set of the first signaling.

[0285] In some embodiments, each of the N channel state information includes at least one uplink channel state information and / or at least one downlink channel state information.

[0286] In some embodiments, downlink channel state information includes at least one of the following:

[0287] Channel state information – Reference Signal Resource Indicator (CRI), Rank Indicator (RI), Layer Indicator (LI), Wideband Channel Quality Indicator (CQI), at least one subband CQI, Layer 1 Reference Signal Received Power (L1-RSRP), at least one differential L1-RSRP, Layer 1 Reference Signal-to-Interference-plus-Noise Ratio (L1-SINR), at least one differential L1-SINR, probability, Layer 1 Reference Signal Received Quality (L1-RSRQ), at least one differential L1-RSRQ, downlink channel information, at least one downlink nonlinear precoding information, at least one downlink linear precoding information; and / or,

[0288] Uplink channel state information includes at least one of the following:

[0289] Uplink Probe Resource Indicator (SRI), Uplink Probe Resource Set Indicator (SRSI), Transmission Rank Indicator (TRI), Transmission Precoding Matrix Indicator (TPMI), Layer Number Domain Indicator (PINL), at least one subband CQI, wideband CQI, uplink channel information, at least one uplink nonlinear precoding information, and at least one uplink linear precoding information.

[0290] In some embodiments, the number of ports corresponding to N1 first-type channel state information is less than or equal to the first channel state information, and / or the number of ports corresponding to N2 second-type channel state information is less than or equal to the first channel state information.

[0291] In some embodiments, the first signaling satisfies any one of the following:

[0292] The first signaling is used to indicate N1 first-class reference signal resources, where N1 = N;

[0293] The first signaling is used to indicate N2 second-type reference signal resources, where N2 = N;

[0294] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, where N1 and N2 are positive integers;

[0295] The first signaling is used to instruct the N2 Type II reference signal resources and channel state information reports;

[0296] The first signaling is used to instruct the N1 Type I reference signal resources and channel state information reports;

[0297] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, as well as channel state information reports, where N1 and N2 are positive integers.

[0298] In some embodiments, the first channel state information satisfies any one of the following:

[0299] The first channel state information is determined based on one or more of the N1 first-type channel state information, where N1 is an integer greater than 1;

[0300] The first channel state information is determined based on one or more of the N2 second-type channel state information, where N1 is an integer greater than 1;

[0301] The first channel state information is determined based on at least one type of first channel state information and at least one type of second channel state information; or...

[0302] Under the condition that the preset conditions are met, the first channel state information is determined based on at least one type of first channel state information and at least one type of second channel state information.

[0303] In some embodiments, the preset conditions include any of the following:

[0304] The interval between the transmission time of at least one first-type reference signal and the transmission time of at least one second-type reference signal is less than a first threshold.

[0305] The interval between the transmission time slot of any first-type reference signal and the transmission time of any second-type reference signal is less than a first threshold.

[0306] The interval between the transmission time of the last reference signal among the N1 first-class reference signals and the transmission time of the last reference signal among the N2 second-class reference signals is less than a first threshold.

[0307] The time between the transmission time of the first reference signal among the N1 first-class reference signals and the transmission time of the first reference signal among the N2 second-class reference signals is less than a first threshold.

[0308] The interval between the transmission time of the last reference signal in N1 first-class reference signals and the first reference signal in N2 second-class reference signals is less than a first threshold.

[0309] Here, the first threshold is a positive integer or a positive real number.

[0310] In some embodiments, the preset conditions include any of the following:

[0311] The interval between the transmission time of the channel state information report and the transmission time of at least one of the N2 second-type reference signals is less than a second threshold.

[0312] The interval between the transmission time of the channel state information report and the transmission time of any one of the N2 second-type reference signals is less than the second threshold.

[0313] The interval between the transmission time of the channel state information report and the transmission time of the first reference signal of the N2 second-type reference signals is less than the second threshold;

[0314] The interval between the transmission time of the channel state information report and the transmission time of the last reference signal of the N2 second-type reference signals is less than the second threshold.

[0315] Here, the second threshold is a positive integer or a positive real number.

[0316] In some embodiments, the preset conditions include any of the following:

[0317] The interval between the transmission time of the first signaling and the transmission time of at least one of the N2 second-class reference signals is less than the third threshold.

[0318] The interval between the transmission time of the first signaling and the transmission time of any one of the N2 second-type reference signals is less than the third threshold.

[0319] The interval between the transmission time of the first signaling and the transmission time of the first reference signal of the N2 second-type reference signals is less than the third threshold.

[0320] The interval between the transmission time of the first signaling and the transmission time of the last reference signal of the N2 second-type reference signals is less than the third threshold.

[0321] Here, the third threshold is a positive integer or a positive real number.

[0322] In some embodiments, the preset conditions include any of the following:

[0323] The difference between the frequency domain information corresponding to at least one of the N1 first-class reference signal resources and the frequency domain information corresponding to at least one of the N2 second-class reference signal resources is less than the fourth threshold.

[0324] The difference between the frequency domain information corresponding to any one of the N1 first-class reference signal resources and the frequency domain information corresponding to any one of the N2 second-class reference signal resources is less than the fourth threshold.

[0325] The difference between the frequency domain information corresponding to the last Class I reference signal resource of N1 Class I reference signal resources and the frequency domain information corresponding to the last Class I reference signal resource of N2 Class II reference signal resources is less than the fourth threshold.

[0326] The difference between the frequency domain information corresponding to the first first-class reference signal resource of N1 first-class reference signal resources and the frequency domain information corresponding to the first first-class reference signal resource of N2 second-class reference signal resources is less than the fourth threshold.

[0327] Here, the fourth threshold is a positive integer or a positive real number.

[0328] In some embodiments, the channel state information receiving method provided in this disclosure also satisfies the above-mentioned preset conditions.

[0329] In some embodiments, the reference signals corresponding to the N reference signal resources satisfy at least one of the following:

[0330] N1 type-1 reference signals have the same spatial parameters;

[0331] N2 type-2 reference signals have the same spatial parameters;

[0332] The N1 type I reference signals and the N2 type II reference signals have the same spatial parameters.

[0333] In some embodiments, the configuration information corresponding to the first type of reference signal resource includes at least one of the following:

[0334] An identifier for at least one type II reference signal resource, an identifier for a reference resource set corresponding to at least one type II reference signal resource, and an identifier for setting the reference resource set corresponding to at least one type II reference signal resource; and / or,

[0335] The configuration information corresponding to the second type of reference signal resources includes at least one of the following:

[0336] The identifier of at least one type I reference signal resource, the identifier of at least one type I reference signal resource corresponding to the reference resource set, the identifier of at least one type I reference signal resource corresponding to the reference resource set setting, and the identifier of the channel state information report.

[0337] Furthermore, for a detailed description of steps S201-S202, please refer to the relevant descriptions of steps S101-S105 above, which will not be repeated here.

[0338] Based on the above embodiments, channel state information can be obtained by combining multiple reference signals, thereby improving the accuracy of obtaining channel state information. The multiple reference signals are based on the same signaling indication. By combining multiple reference signals, multiple channel information is obtained, and a more accurate final channel state information (first channel state information) is obtained from these multiple channel information. For example, multiple channel information can be obtained through reference signals in different time domains, frequency domains, and links, and the final channel state information (first channel state information) is obtained by integrating the multiple channel information from different perspectives, thereby improving the accuracy of channel state information and thus improving the performance of the communication system.

[0339] The foregoing primarily describes the solution provided in this disclosure from the perspective of interaction between various communication nodes. It is understood that each communication node, in order to achieve the aforementioned functions, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0340] Figure 4 is a block diagram of a communication device according to some embodiments. As shown in Figure 4, the communication device 400 includes a receiving module 401, a determining module 402, a generating module 403, and a sending module 404.

[0341] Here, the receiving module 401 is used to receive the first signaling;

[0342] The determining module 402 is used to determine N reference signal resources according to the first signaling; the N reference signal resources correspond to N channel state information; here, the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 equals N;

[0343] The determining module 402 is further configured to determine the first channel state information based on one or more of the N channel state information;

[0344] The generation module 403 is used to generate a channel state information report based on the first channel state information;

[0345] The transmitting module 404 is used to transmit the channel status information report.

[0346] In some embodiments, the transmitting module 404 is further configured to transmit N2 second-type reference signals on N2 second-type reference signal resources, wherein the N2 second-type reference signals correspond to N2 second-type channel state information.

[0347] In some embodiments, the receiving module 401 is further configured to receive N1 first reference signals on N1 first type reference signal resources; and to obtain N1 first type channel state information based on the N1 first reference signals.

[0348] In some embodiments, the N reference signals include at least a first reference signal and a second reference signal, satisfying at least one of the following:

[0349] The transmission unit corresponding to the first reference signal is different from the transmission unit corresponding to the second reference signal;

[0350] The frequency domain units corresponding to the first reference signal and the second reference signal are different;

[0351] The time-domain unit corresponding to the first reference signal is different from the time-domain unit corresponding to the second reference signal;

[0352] The port index corresponding to the first reference signal is different from the port index corresponding to the second reference signal;

[0353] The number of ports corresponding to the first reference signal is different from the number of ports corresponding to the second reference signal.

[0354] In some embodiments, at least two of the N1 first-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources; and / or, at least two of the N2 second-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources.

[0355] In some embodiments, at least two of the N1 first-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups; and / or, at least two of the N2 second-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups.

[0356] In some embodiments, the first signaling includes at least one of the following: Radio Resource Control (RRC), Media Access Control (MAC) Control Element (CE), and Downlink Control Information (DCI).

[0357] In some embodiments, the first signaling satisfies at least one of the following:

[0358] The first signaling is one or more fields of the RRC;

[0359] The first signaling is one or more fields of MAC CE;

[0360] The first signaling is one or more fields in the DCI;

[0361] The first signaling is at least one field in the RRC and at least one field in the MAC CE;

[0362] The first signaling is at least one field in the RRC and at least one field in the DCI;

[0363] The first signaling is at least one field in MAC CE and at least one field in DCI;

[0364] The first signaling is at least one field in the RRC and at least one field in the MAC CE, and at least one field in the DCI.

[0365] In some embodiments, the receiving module 401 is further configured to receive at least one of the N2 second-type channel state information via second signaling, wherein the second signaling is higher-layer signaling and / or physical-layer signaling.

[0366] In some embodiments, the search space of the first signaling is the same as the search space of the second signaling, and / or the control resource set of the first signaling is the same as the control resource set of the second signaling.

[0367] In some embodiments, each of the N channel state information includes at least one uplink channel state information and / or at least one downlink channel state information.

[0368] In some embodiments, downlink channel state information includes at least one of the following:

[0369] Channel state information – Reference Signal Resource Indicator (CRI), Rank Indicator (RI), Layer Indicator (LI), Wideband Channel Quality Indicator (CQI), at least one subband CQI, Layer 1 Reference Signal Received Power (L1-RSRP), at least one differential L1-RSRP, Layer 1 Reference Signal-to-Interference-plus-Noise Ratio (L1-SINR), at least one differential L1-SINR, probability, Layer 1 Reference Signal Received Quality (L1-RSRQ), at least one differential L1-RSRQ, downlink channel information, at least one downlink nonlinear precoding information, at least one downlink linear precoding information; and / or,

[0370] Uplink channel state information includes at least one of the following:

[0371] Uplink Probe Resource Indicator (SRI), Uplink Probe Resource Set Indicator (SRSI), Transmission Rank Indicator (TRI), Transmission Precoding Matrix Indicator (TPMI), Layer Number Domain Indicator (PINL), at least one subband CQI, wideband CQI, uplink channel information, at least one uplink nonlinear precoding information, and at least one uplink linear precoding information.

[0372] In some embodiments, the number of ports corresponding to N1 first-type channel state information is less than or equal to the first channel state information, and / or the number of ports corresponding to N2 second-type channel state information is less than or equal to the first channel state information.

[0373] In some embodiments, the first signaling satisfies any one of the following:

[0374] The first signaling is used to indicate N1 first-class reference signal resources, where N1 = N;

[0375] The first signaling is used to indicate N2 second-type reference signal resources, where N2 = N;

[0376] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, where N1 and N2 are positive integers;

[0377] The first signaling is used to instruct the N2 Type II reference signal resources and channel state information reports;

[0378] The first signaling is used to instruct the N1 Type I reference signal resources and channel state information reports;

[0379] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, as well as channel state information reports, where N1 and N2 are positive integers.

[0380] In some embodiments, the determining module 402 is specifically used for:

[0381] The first channel state information is determined based on one or more of the N1 first-type channel state information, where N1 is an integer greater than 1;

[0382] The first channel state information is determined based on one or more of the N2 second-type channel state information, where N1 is an integer greater than 1; or

[0383] The first channel state information is determined based on at least one type of first-class channel state information and at least one type of second-class channel state information; or...

[0384] Under the condition that the preset conditions are met, the first channel state information is determined based on at least one type of first channel state information and at least one type of second channel state information.

[0385] In some embodiments, the preset conditions include any of the following:

[0386] The interval between the transmission time of at least one first-type reference signal and the transmission time of at least one second-type reference signal is less than a first threshold.

[0387] The interval between the transmission time slot of any first-type reference signal and the transmission time of any second-type reference signal is less than a first threshold.

[0388] The interval between the transmission time of the last reference signal among the N1 first-class reference signals and the transmission time of the last reference signal among the N2 second-class reference signals is less than a first threshold.

[0389] The time between the transmission time of the first reference signal among the N1 first-class reference signals and the transmission time of the first reference signal among the N2 second-class reference signals is less than a first threshold.

[0390] The interval between the transmission time of the last reference signal in N1 first-class reference signals and the first reference signal in N2 second-class reference signals is less than a first threshold.

[0391] Here, the first threshold is a positive integer or a positive real number.

[0392] In some embodiments, the preset conditions include any of the following:

[0393] The interval between the transmission time of the channel state information report and the transmission time of at least one of the N2 second-type reference signals is less than a second threshold.

[0394] The interval between the transmission time of the channel state information report and the transmission time of any one of the N2 second-type reference signals is less than the second threshold.

[0395] The interval between the transmission time of the channel state information report and the transmission time of the first reference signal of the N2 second-type reference signals is less than the second threshold;

[0396] The interval between the transmission time of the channel state information report and the transmission time of the last reference signal of the N2 second-type reference signals is less than the second threshold.

[0397] Here, the second threshold is a positive integer or a positive real number.

[0398] In some embodiments, the preset conditions include any of the following:

[0399] The interval between the transmission time of the first signaling and the transmission time of at least one of the N2 second-class reference signals is less than the third threshold.

[0400] The interval between the transmission time of the first signaling and the transmission time of any one of the N2 second-type reference signals is less than the third threshold.

[0401] The interval between the transmission time of the first signaling and the transmission time of the first reference signal of the N2 second-type reference signals is less than the third threshold.

[0402] The interval between the transmission time of the first signaling and the transmission time of the last reference signal of the N2 second-type reference signals is less than the third threshold.

[0403] Here, the third threshold is a positive integer or a positive real number.

[0404] In some embodiments, the preset conditions include any of the following:

[0405] The difference between the frequency domain information corresponding to at least one of the N1 first-class reference signal resources and the frequency domain information corresponding to at least one of the N2 second-class reference signal resources is less than the fourth threshold.

[0406] The difference between the frequency domain information corresponding to any one of the N1 first-class reference signal resources and the frequency domain information corresponding to any one of the N2 second-class reference signal resources is less than the fourth threshold.

[0407] The difference between the frequency domain information corresponding to the last Class I reference signal resource of N1 Class I reference signal resources and the frequency domain information corresponding to the last Class I reference signal resource of N2 Class II reference signal resources is less than the fourth threshold.

[0408] The difference between the frequency domain information corresponding to the first first-class reference signal resource of N1 first-class reference signal resources and the frequency domain information corresponding to the first first-class reference signal resource of N2 second-class reference signal resources is less than the fourth threshold.

[0409] Here, the fourth threshold is a positive integer or a positive real number.

[0410] In some embodiments, the reference signals corresponding to the N reference signal resources satisfy at least one of the following:

[0411] N1 type-1 reference signals have the same spatial parameters;

[0412] N2 type-2 reference signals have the same spatial parameters;

[0413] The N1 type I reference signals and the N2 type II reference signals have the same spatial parameters.

[0414] In some embodiments, the configuration information corresponding to the first type of reference signal resource includes at least one of the following:

[0415] An identifier for at least one type II reference signal resource, an identifier for a reference resource set corresponding to at least one type II reference signal resource, and an identifier for setting the reference resource set corresponding to at least one type II reference signal resource; and / or,

[0416] The configuration information corresponding to the second type of reference signal resources includes at least one of the following:

[0417] The identifier of at least one type I reference signal resource, the identifier of at least one type I reference signal resource corresponding to the reference resource set, the identifier of at least one type I reference signal resource corresponding to the reference resource set setting, and the identifier of the channel state information report.

[0418] For a more detailed description of the receiving module 401, determining module 402, generating module 403, and sending module 404, as well as a more detailed description of each technical feature therein and a description of the beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0419] Figure 5 is a block diagram of a communication device according to some embodiments. As shown in Figure 5, the communication device 500 includes a transmitting module 501 and a receiving module 502.

[0420] Here, the transmitting module 501 is used to transmit a first signaling, which is used to indicate N reference signal resources; the N reference signal resources correspond to N channel state information; here, the N reference signal resources include N1 first-type reference signal resources and N2 second-type reference signal resources; the N channel state information includes N1 first-type channel state information and N2 second-type channel state information; N is a positive integer greater than 1, N1 and N2 are integers greater than or equal to 0, and the sum of N1 and N2 is equal to N.

[0421] The receiving module 502 is used to receive a channel state information report, which includes a first channel state information determined based on one or more of N channel state information reports.

[0422] In some embodiments, the receiving module 502 is further configured to receive N2 second-type reference signals on N2 second-type reference signal resources; and to obtain N2 second-type channel state information based on the N2 second-type reference signals.

[0423] In some embodiments, the transmitting module 501 is further configured to transmit N1 first-type reference signals on N1 first-type reference signal resources, wherein the N1 first-type reference signals correspond to N1 first-type channel state information.

[0424] In some embodiments, the N reference signals include at least a first reference signal and a second reference signal, satisfying at least one of the following:

[0425] The transmission unit corresponding to the first reference signal is different from the transmission unit corresponding to the second reference signal;

[0426] The frequency domain units corresponding to the first reference signal and the second reference signal are different;

[0427] The time-domain unit corresponding to the first reference signal is different from the time-domain unit corresponding to the second reference signal;

[0428] The port index corresponding to the first reference signal is different from the port index corresponding to the second reference signal;

[0429] The number of ports corresponding to the first reference signal is different from the number of ports corresponding to the second reference signal.

[0430] In some embodiments, at least two of the N1 first-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources; and / or, at least two of the N2 second-class reference signal resources belong to the same set of reference signal resources or the same configuration of reference signal resources.

[0431] In some embodiments, at least two of the N1 first-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups; and / or, at least two of the N2 second-class reference signals correspond to at least one of different ports, panels, bandwidth portions, component carriers, carriers, and physical resource block groups.

[0432] In some embodiments, the first signaling includes at least one of the following: Radio Resource Control (RRC), Media Access Control (MAC) Control Element (CE), and Downlink Control Information (DCI).

[0433] In some embodiments, the first signaling satisfies at least one of the following:

[0434] The first signaling is one or more fields of the RRC;

[0435] The first signaling is one or more fields of MAC CE;

[0436] The first signaling is one or more fields in the DCI;

[0437] The first signaling is at least one field in the RRC and at least one field in the MAC CE;

[0438] The first signaling is at least one field in the RRC and at least one field in the DCI;

[0439] The first signaling is at least one field in MAC CE and at least one field in DCI;

[0440] The first signaling is at least one field in the RRC and at least one field in the MAC CE, and at least one field in the DCI.

[0441] In some embodiments, the transmitting module 501 is further configured to transmit N2 second-type channel state information via second signaling, wherein the second signaling is higher-layer signaling and / or physical-layer signaling.

[0442] In some embodiments, the search space of the first signaling is the same as the search space of the first signaling, and / or the control resource set of the first signaling is the same as the control resource set of the first signaling.

[0443] In some embodiments, each of the N channel state information includes at least one uplink channel state information and / or at least one downlink channel state information.

[0444] In some embodiments, downlink channel state information includes at least one of the following:

[0445] Channel state information – Reference Signal Resource Indicator (CRI), Rank Indicator (RI), Layer Indicator (LI), Wideband Channel Quality Indicator (CQI), at least one subband CQI, Layer 1 Reference Signal Received Power (L1-RSRP), at least one differential L1-RSRP, Layer 1 Reference Signal-to-Interference-plus-Noise Ratio (L1-SINR), at least one differential L1-SINR, probability, Layer 1 Reference Signal Received Quality (L1-RSRQ), at least one differential L1-RSRQ, downlink channel information, at least one downlink nonlinear precoding information, at least one downlink linear precoding information; and / or,

[0446] Uplink channel state information includes at least one of the following:

[0447] Uplink Probe Resource Indicator (SRI), Uplink Probe Resource Set Indicator (SRSI), Transmission Rank Indicator (TRI), Transmission Precoding Matrix Indicator (TPMI), Layer Number Domain Indicator (PINL), at least one subband CQI, wideband CQI, uplink channel information, at least one uplink nonlinear precoding information, and at least one uplink linear precoding information.

[0448] In some embodiments, the number of ports corresponding to N1 first-type channel state information is less than or equal to the first channel state information, and / or the number of ports corresponding to N2 second-type channel state information is less than or equal to the first channel state information.

[0449] In some embodiments, the first signaling satisfies any one of the following:

[0450] The first signaling is used to indicate N1 first-class reference signal resources, where N1 = N;

[0451] The first signaling is used to indicate N2 second-type reference signal resources, where N2 = N;

[0452] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, where N1 and N2 are positive integers;

[0453] The first signaling is used to instruct the N2 Type II reference signal resources and channel state information reports;

[0454] The first signaling is used to instruct the N1 Type I reference signal resources and channel state information reports;

[0455] The first signaling is used to indicate N1 first-class reference signal resources and N2 second-class reference signal resources, as well as channel state information reports, where N1 and N2 are positive integers.

[0456] In some embodiments, the first channel state information satisfies any one of the following:

[0457] The first channel state information is determined based on one or more of the N1 first-type channel state information, where N1 is an integer greater than 1;

[0458] The first channel state information is determined based on one or more of the N2 second-type channel state information, where N1 is an integer greater than 1; or

[0459] The first channel state information is determined based on at least one type of first-class channel state information and at least one type of second-class channel state information; or...

[0460] Under the condition that the preset conditions are met, the first channel state information is determined based on at least one type of first channel state information and at least one type of second channel state information.

[0461] In some embodiments, the preset conditions include any of the following:

[0462] The interval between the transmission time of at least one first-type reference signal and the transmission time of at least one second-type reference signal is less than a first threshold.

[0463] The interval between the transmission time slot of any first-type reference signal and the transmission time of any second-type reference signal is less than a first threshold.

[0464] The interval between the transmission time of the last reference signal among the N1 first-class reference signals and the transmission time of the last reference signal among the N2 second-class reference signals is less than a first threshold.

[0465] The time between the transmission time of the first reference signal among the N1 first-class reference signals and the transmission time of the first reference signal among the N2 second-class reference signals is less than a first threshold.

[0466] The interval between the transmission time of the last reference signal in N1 first-class reference signals and the first reference signal in N2 second-class reference signals is less than a first threshold.

[0467] Here, the first threshold is a positive integer or a positive real number.

[0468] In some embodiments, the preset conditions include any of the following:

[0469] The interval between the transmission time of the channel state information report and the transmission time of at least one of the N2 second-type reference signals is less than a second threshold.

[0470] The interval between the transmission time of the channel state information report and the transmission time of any one of the N2 second-type reference signals is less than the second threshold.

[0471] The interval between the transmission time of the channel state information report and the transmission time of the first reference signal of the N2 second-type reference signals is less than the second threshold;

[0472] The interval between the transmission time of the channel state information report and the transmission time of the last reference signal of the N2 second-type reference signals is less than the second threshold.

[0473] Here, the second threshold is a positive integer or a positive real number.

[0474] In some embodiments, the preset conditions include any of the following:

[0475] The interval between the transmission time of the first signaling and the transmission time of at least one of the N2 second-class reference signals is less than the third threshold.

[0476] The interval between the transmission time of the first signaling and the transmission time of any one of the N2 second-type reference signals is less than the third threshold.

[0477] The interval between the transmission time of the first signaling and the transmission time of the first reference signal of the N2 second-type reference signals is less than the third threshold.

[0478] The interval between the transmission time of the first signaling and the transmission time of the last reference signal of the N2 second-type reference signals is less than the third threshold.

[0479] Here, the third threshold is a positive integer or a positive real number.

[0480] In some embodiments, the preset conditions include any of the following:

[0481] The difference between the frequency domain information corresponding to at least one of the N1 first-class reference signal resources and the frequency domain information corresponding to at least one of the N2 second-class reference signal resources is less than the fourth threshold.

[0482] The difference between the frequency domain information corresponding to any one of the N1 first-class reference signal resources and the frequency domain information corresponding to any one of the N2 second-class reference signal resources is less than the fourth threshold.

[0483] The difference between the frequency domain information corresponding to the last Class I reference signal resource of N1 Class I reference signal resources and the frequency domain information corresponding to the last Class I reference signal resource of N2 Class II reference signal resources is less than the fourth threshold.

[0484] The difference between the frequency domain information corresponding to the first first-class reference signal resource of N1 first-class reference signal resources and the frequency domain information corresponding to the first first-class reference signal resource of N2 second-class reference signal resources is less than the fourth threshold.

[0485] Here, the fourth threshold is a positive integer or a positive real number.

[0486] In some embodiments, the reference signals corresponding to the N reference signal resources satisfy at least one of the following:

[0487] N1 type-1 reference signals have the same spatial parameters;

[0488] N2 type-2 reference signals have the same spatial parameters;

[0489] The N1 type I reference signals and the N2 type II reference signals have the same spatial parameters.

[0490] In some embodiments, the configuration information corresponding to the first type of reference signal resource includes at least one of the following:

[0491] An identifier for at least one type II reference signal resource, an identifier for a reference resource set corresponding to at least one type II reference signal resource, and an identifier for setting the reference resource set corresponding to at least one type II reference signal resource; and / or,

[0492] The configuration information corresponding to the second type of reference signal resources includes at least one of the following:

[0493] The identifier of at least one type I reference signal resource, the identifier of at least one type I reference signal resource corresponding to the reference resource set, the identifier of at least one type I reference signal resource corresponding to the reference resource set setting, and the identifier of the channel state information report.

[0494] For a more detailed description of the above-mentioned sending module 501 and receiving module 502, as well as a more detailed description of their respective technical features and beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0495] It should be noted that the modules in Figures 4 and 5 can also be called units; for example, the transmitting module can be called a transmitting unit. Furthermore, in the embodiments shown in Figures 4 and 5, the names of the modules may not be those shown in the figures; for example, the transmitting module can also be called a communication module, and the receiving module can also be called a communication module.

[0496] If the units or modules in Figures 4 and 5 are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0497] In the case of implementing the functions of the integrated modules described above in hardware, this disclosure provides a block diagram of a communication device. As shown in FIG6, the communication device 600 includes: a processor 602, a communication interface 603, and a bus 604. In some embodiments, the communication device 600 may further include a memory 601.

[0498] Processor 602 may implement or execute the various illustrative logic blocks, modules, and circuits described in connection with this disclosure. Processor 602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various illustrative logic blocks, modules, and circuits described in connection with this disclosure. Processor 602 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a digital signal processor (DSP), and a microprocessor.

[0499] Communication interface 603 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0500] The memory 601 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0501] In one possible implementation, the memory 601 can exist independently of the processor 602. The memory 601 can be connected to the processor 602 via a bus 604 and is used to store instructions or program code. When the processor 602 calls and executes the instructions or program code stored in the memory 601, it can implement the methods provided in the embodiments of this disclosure.

[0502] In another possible implementation, the memory 601 can also be integrated with the processor 602.

[0503] Bus 604 can be an extended industry standard architecture (EISA) bus, etc. Bus 604 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 6, but this does not mean that there is only one bus or one type of bus.

[0504] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment or device can be divided into different functional modules to complete all or part of the functions described above.

[0505] This disclosure also provides a computer-readable storage medium, which includes a non-transitory computer-readable storage medium storing computer instructions. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the above computer-readable storage medium, and when executed, the program can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The above computer-readable storage medium can also be an external storage device of the above device or apparatus, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the above device or apparatus. Further, the above computer-readable storage medium can also include both internal storage units of the above device or apparatus and external storage devices. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above device or apparatus. The above computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0506] This disclosure also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the methods provided in the above embodiments.

[0507] Although this disclosure has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0508] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

[0509] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

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