Reference signal configuration information sending method, reference signal configuration information receiving method, apparatus and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communications. Provided are a reference signal configuration information sending method, a reference signal configuration information receiving method, an apparatus and a storage medium. The reference signal configuration information sending method comprises: acquiring port description information; on the basis of the port description information, generating reference signal configuration information; and sending the reference signal configuration information.

Description

Reference signal configuration information sending method, receiving method, device and storage medium

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on November 22, 2023, with application number 202311581269.9 and titled “Reference signal configuration information sending method, receiving method, device and storage medium”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a method for sending, a method for receiving, an apparatus, and a storage medium for reference signal configuration information. Background Art

[0004] Multi-antenna technology can effectively improve the performance of wireless communication systems and is widely used in various wireless communication systems. As mobile communications (including but not limited to fifth-generation communication technology and its enhanced technologies, sixth-generation communication technology, and other future and existing mobile communication systems) demand ever-higher transmission rates, arrays with larger numbers of ports (or antennas) are becoming increasingly popular, such as 48-port, 64-port, 128-port, and even 256-port antennas. As the number of ports increases, the overhead required for reference signals increases.

[0005] One current solution is to downsample the N-port reference signal to convert it into an M-port reference signal, then transmit the M-port reference signal. The receiver receives the M-port reference signal and measures the M-port channel information. Advanced information processing techniques (including but not limited to artificial intelligence) are then used to process the M-port channel information to obtain the N-port channel information, where N is greater than M and both N and M are positive integers. This reduces reference signal overhead. However, the terminal and base station may have different understandings of the mapping from M ports to N ports and the value of M, making it impossible to accurately obtain the N-port channel information from the M-port channel information.

[0006] Summary of the Invention

[0007] Embodiments of the present disclosure provide a method for sending, a method for receiving, an apparatus, and a storage medium for reference signal configuration information.

[0008] On the one hand, a method for sending reference signal configuration information is provided, which is applied to a first node and includes: acquiring port description information; generating reference signal configuration information according to the port description information; and sending the reference signal configuration information.

[0009] On the other hand, a method for receiving reference signal configuration information is provided, which is applied to a second node and includes: receiving reference signal configuration information, and receiving a reference signal according to the reference signal configuration information.

[0010] In another aspect, a communication device is provided, comprising: an acquisition module, a generation module, and a sending module. The acquisition module is configured to acquire port description information; the generation module is configured to generate reference signal configuration information based on the port description information; and the sending module is configured to send the reference signal configuration information.

[0011] In yet another aspect, a communication device is provided, comprising: a receiving module, wherein the receiving module is configured to receive reference signal configuration information and receive a reference signal according to the reference signal configuration information.

[0012] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the reference signal configuration information sending method or the reference signal configuration information receiving method described in any of the above embodiments is implemented.

[0013] On the other hand, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed by a processor, the reference signal configuration information sending method or the reference signal configuration information receiving method described in any of the above embodiments is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] FIG1 is a schematic diagram of channel processing provided by some embodiments of the present disclosure;

[0016] FIG2 is a schematic diagram of the architecture of a communication system provided by some embodiments of the present disclosure;

[0017] FIG3 is a schematic diagram of a flow chart of a method for sending reference signal configuration information provided in some embodiments of the present disclosure;

[0018] FIG4 is a schematic flow chart of another method for sending reference signal configuration information provided in some embodiments of the present disclosure;

[0019] FIG5 is a schematic diagram of a flow chart of a method for receiving reference signal configuration information provided in some embodiments of the present disclosure;

[0020] FIG6 is a schematic flow chart of another method for receiving reference signal configuration information provided in some embodiments of the present disclosure;

[0021] FIG7 is a schematic flow chart of another method for receiving reference signal configuration information provided in some embodiments of the present disclosure;

[0022] FIG8 is a schematic structural diagram of a communication device provided by some embodiments of the present disclosure;

[0023] FIG9 is a schematic structural diagram of another communication device provided in some embodiments of the present disclosure;

[0024] FIG10 is a schematic diagram of the structure of a communication device provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of this disclosure in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of this disclosure, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of this disclosure without making any creative efforts shall fall within the scope of protection of this disclosure.

[0026] It should be noted that in this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0027] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0028] In the description of this disclosure, unless otherwise specified, " / " means "or." For example, A / B can mean A or B. "And / or" in this document simply describes an association relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exists simultaneously, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more.

[0029] As described in the background, as the number of antennas increases, the reference signal overhead requirements increase. For example, for a density of 1 (i.e., one reference signal port corresponds to one resource unit on average), each physical resource block (PRB) consists of 12 subcarriers and S symbols. 64 antennas require 6 symbols, while 128 antennas require 11 symbols to transmit reference signals (such as the channel state information-reference signal (CSI-RS), resulting in excessive reference signal overhead.

[0030] To address the issue of excessive reference signal overhead, one approach is to downsample a full-dimensional reference signal, such as one with N ports, to M ports, effectively transmitting the reference signal for M ports. The receiving side receives the reference signal for the M ports, obtains the channel information for the M ports, and uses advanced information processing techniques to process the channel information for the M ports into the channel information for N ports, thereby equivalently achieving the goal of transmitting the reference signal for N ports. Generally speaking, M is less than N, and M and N are positive integers, such as 4, 8, 12, and so on, times M. As an example, as shown in Figure 1, the base station downsamples (also called downsampling) the full-dimensional CSI-RS (shown with more ports in the figure) to obtain a downsampled CSI-RS (shown with fewer ports in the figure), and then transmits the downsampled CSI-RS. After receiving the downsampled CSI-RS, the terminal measures the channel information of the M-ports after the downsampling and processes the M-port channel information based on artificial intelligence to restore the M-port channel information corresponding to the downsampled CSI-RS to the N-port channel information corresponding to the full-dimensional CSI-RS. However, in actual use, the base station may not know the model corresponding to the terminal's information processing, including the model's input size requirements and the correspondence between the input channel information and the N-port channel information, such as which of the N ports the M ports are selected from and how the N and M ports are arranged. As a result, the channel information corresponding to the full-dimensional CSI-RS obtained by the terminal processing differs significantly from the channel information of the N-port CSI-RS actually transmitted by the base station. This results in inaccurate estimation of the N-port channel information. For ease of description, the original unsampled port set, or the full-dimensional port set, or the port set originally used by the communication node to transmit the reference signal, is referred to as the first port set, which includes N ports, and the downsampled port set, or the port set actually used to transmit the reference signal, is referred to as the second port set, which has M ports. Generally speaking, the second port set is a subset of the first port set. Here, M and N are positive integers, and M is smaller than N. It should be noted that the CSI-RS in this embodiment can also be replaced with other types of reference signals.

[0031] Based on this, in the method, the first node can obtain port description information and generate reference signal configuration information based on the port description information. Then, the reference signal configuration information is sent. The port description information is used to describe the information processing capabilities of the second node, including but not limited to at least one of the following: for example, the input size of the model or function used for information processing in the second node (for example, the number M of one or more second port sets), for example, the mapping relationship between the ports corresponding to the input channel information (for example, one or more second port sets) and the ports corresponding to the output channel information (for example, the first port set), for example, the port index of the second port set, for example, the downsampling multiple, for example, the second port set description information, etc. For ease of description, K second port set description information is defined herein, wherein the K second port set description information includes at least one of the following: the number of ports in the K second port sets, or the mapping relationship between the K second port sets and the first port set, or K downsampling multiples, or K models, or K model identifiers, or K functions, or K function identifiers, where K is an integer greater than or equal to 1. In some examples, the port description information also includes the second port set description information. The first node may generate reference signal configuration information based on the port description information and send the reference signal configuration information to the second node. In some examples, the reference signal configuration information includes port description information (of course, it may also be a high-level and / or physical transmission port description information outside the reference signal configuration information), where the port description information includes the number of ports of a second port set, or a mapping relationship from a second port set to a first port set, or a downsampling multiple. After receiving the reference signal configuration information, the second node may determine the port description information based on the reference signal configuration information and determine the information processing method based on the port description information. This allows both communicating parties to have a consistent understanding of the reference signal configuration, thereby ensuring that one or both communicating parties correctly processes the reference signal.

[0032] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the embodiments of the present disclosure may include network-side devices (for example, including but not limited to base stations) and receiving-side devices (for example, including but not limited to terminals). And it should be understood that, in this example, in the downlink, the first communication node (also referred to as the first communication node device) may be a base station-side device, and the second communication node (also referred to as the second communication node device) may be a terminal-side device. Of course, in the uplink, the first communication node may also be a terminal-side device, and the second communication node may also be a base station-side device. In the device-to-device communication between the two communication nodes, the first communication node and the second communication node may both be base stations or terminals. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0033] For example, taking a base station as the network-side device and a terminal as the receiving-side device, Figure 2 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in Figure 2, communication system 20 includes a base station 21 and a terminal 22. Base station 21 and terminal 22 can be communicatively connected.

[0034] In some embodiments, a base station 21 is configured to provide wireless access services to multiple terminals 22. Specifically, a base station 21 provides a service coverage area (also referred to as a cell). Terminals 22 within this area can communicate with the base station 21 via wireless signals to receive the wireless access services provided by the base station 21. The service coverage areas of base stations 21 may overlap, and terminals 22 within the overlapping areas can receive wireless signals from multiple base stations 21.

[0035] In some embodiments, base station 21 can connect to multiple terminals 22. For example, base station 21 connects terminal 22 and terminal 22. Terminal 22 and terminal 22 can be located in the same cell, or in different cells. In other words, one base station 21 can provide network services to terminal 22 in one cell, or to terminals 22 in multiple cells simultaneously.

[0036] In some embodiments, the base station 21 can be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network side devices such as primary cells and collaborative cells (secondary cells).

[0037] In some embodiments, the terminal 22 can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present application do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., but the embodiments of the present application are not limited to this.

[0038] In some embodiments, high-layer signaling includes, but is not limited to, radio resource control (RRC), media access control-control element (MAC CE), or other high-layer signaling above the physical layer. Physical layer signaling includes, but is not limited to, downlink control information and uplink control information. As an example, physical layer signaling can be transmitted between a base station and a terminal on a physical downlink control channel (PDCCH) and on a physical uplink control channel (PUCCH).

[0039] In some embodiments, the indicator of a parameter may also be referred to as an index or an identifier (ID), and the indication, identifier, and index are equivalent concepts. For example, the resource identifier of a wireless system may also be referred to as a resource indication or a resource index. The 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, identifiers corresponding to terminals, base stations, panels, neural networks, sub-neural networks, neural network layers, and the like. The base station may indicate the identifier of one or a group of resources to the terminal through various high-layer signaling or physical layer signaling. The terminal may feedback the identifier of one or a group of resources to the base station through various high-layer signaling and / or physical layer signaling.

[0040] In some embodiments, transmitting includes sending or receiving, such as sending data or signals, or receiving data or signals.

[0041] In some embodiments, to calculate channel state information or perform channel estimation, mobility management, positioning, etc., a base station or user needs to send a reference signal (RS). Reference signals include, but are not limited to, a channel-state information reference signal (CSI-RS), which includes zero-power CSI-RS (ZP CSI-RS) and non-zero-power CSI-RS (NZP CSI-RS), a channel-state information-interference measurement signal (CSI-IM), a sounding reference signal (SRS), a synchronization signal block (SSB), a physical broadcast channel (PBCH), and a synchronization signal block / physical broadcast channel (SSB / PBCH). NZP CSI-RS can be used to measure channel or interference, while CSI-RS can also be used for tracking, known as a tracking reference signal (TRS). CSI-IM is generally used to measure interference, and SRS is used to measure uplink channels. In addition, the resource element (RE) set included in the time-frequency resources used to transmit reference signals is called a reference signal resource, such as CSI-RS resource, SRS resource, CSI-IM resource, SSB resource. In this article, SSB includes synchronization signal blocks and / or physical broadcast channels.

[0042] In some embodiments, in order to save signaling overhead, etc., multiple reference signal resources may be divided into multiple sets (such as CSI-RS resource set, CSI-IM resource set, SRS resource set), and the reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets can all come from the same reference signal resource setting (such as CSI-RS resource setting, SRS resource setting, where CSI-RS resource setting may be merged with CSI-IM resource setting, both referred to as CSI-RS resource setting) to configure parameter information.

[0043] In some embodiments, a time instance is a time period, such as a time slot. A time slot may be a time slot or a mini slot. A time slot or a mini slot includes at least one symbol. A symbol refers to a time unit in a subframe, frame, or time slot, such as an orthogonal frequency division multiplexing (OFDM) symbol, a single-carrier frequency division multiple access (SC-FDMA) symbol, an orthogonal frequency division multiple access (OFDMA) symbol, etc.

[0044] In some embodiments, the minimum transmission unit that carries a modulation symbol is a resource element (RE). RE is the minimum time-frequency resource used to transmit a modulation symbol, including a frequency domain subcarrier and a radio resource on a symbol. Radio resources consisting of multiple symbols and multiple subcarriers constitute a physical resource block, for example, symbols with consecutive indexes from 1 to 14 and 12 consecutive subcarriers with consecutive indexes constitute a physical resource block (PRB). Among them, the reference signal pattern includes at least one RE, and the reference signal is only transmitted on fixed REs pre-configured by the base station, which is called a pattern, such as a DMRS pattern.

[0045] In some embodiments, the beam includes a transmit beam, a receive beam, a receive beam and a transmit beam pair, and a transmit beam and a receive beam pair. In some embodiments, the beam can be understood as a resource, such as a reference signal resource, a transmit-end spatial filter, a receive-end spatial filter, a spatial filter, a spatial reception parameter, a transmit-end precoding, a receive-end precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc. The beam index can be replaced with a resource index (such as a reference signal resource index) because the beam can be bound to some time-frequency code resources for transmission. The beam can also be a transmission (transmission / reception) mode; the transmission mode may include spatial division multiplexing, frequency domain / time domain diversity, beamforming, etc.

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

[0047] In some embodiments, the information processing method may be a traditional information processing method or various advanced information processing methods. Advanced information processing methods include but are not limited to information processing methods based on artificial intelligence (AI).

[0048] In some embodiments, artificial intelligence (AI) includes self-learning devices, components, software, and modules 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. In one example, the neural network includes an input layer, an output layer, and at least one hidden layer. Each layer of the neural network includes, but is not limited to, at least one of a fully connected layer, a dense layer, a convolutional layer, a transposed convolutional layer, a direct connection layer, an activation function, a normalization layer, and a pooling layer. In some embodiments, each layer of the neural network may include a sub-neural network, such as a residual network block (or Resnet block), a dense network (Densenet Block), a recurrent neural network (RNN), and the like. The artificial intelligence network can be implemented through a model, wherein the model may include a neural network model, wherein the neural network model includes a neural network model structure and / or neural network model parameters, wherein the neural network model structure can be referred to as a model structure, and the neural network model parameters can be referred to as network parameters or model parameters. A model structure defines the network architecture, including the number of layers, the size of each layer, the activation function, the connection structure, the convolution kernel and stride, and the convolution type (such as 1D convolution, 2D convolution, 3D convolution, atrous convolution, transposed convolution, separable convolution, grouped convolution, and dilated convolution). Network parameters are the weights and / or biases of each layer in the neural network model and their values. A single model structure can correspond to multiple sets of different neural network model parameter values ​​to adapt to different scenarios.

[0049] In some examples, neural network model parameters are obtained through online or offline training. For example, the neural network model parameters are trained by inputting at least one sample, where the sample includes features and labels.

[0050] In some examples, a sample includes N features and M labels, where N is a positive integer and M is an integer greater than or equal to 0. Multiple samples constitute a dataset. In a specific example, a sample includes one feature and one label, such as a sample in supervised learning. In another example, a sample has only one feature and no label, such as a sample in unsupervised learning. In some examples, a sample has multiple features and one label, such as in a multi-input, single-output supervised learning network model. In some examples, a sample includes one feature and multiple labels, such as in a single-input, multi-output supervised learning network model. In some examples, a feature can be an array, and in some examples, the label is also an array. Here, the array can be a vector, a matrix, or a tensor larger than two dimensions. Here, each element in the array can be a discrete value, a real value, a real value between 0 and 1, or a real value between -0.5 and 0.5.

[0051] In some cases, normalization is required for the elements in arrays corresponding to labels or features to facilitate faster convergence of the network model. Normalization refers to normalizing the values ​​of the elements in an array to a value greater than or equal to a and less than or equal to b. There are various types of sample normalization. For example, in one example, a = -0.5 and b = 0.5. In another example, a = 0 and b = 1. In one example, normalization is achieved by dividing the elements in an array by the number with the largest absolute value among the elements in the array. In another example, normalization is achieved by dividing the elements in an array by the variance of the elements in the array. In another example, normalization is achieved by dividing the elements in an array by a fixed value (such as the maximum value of all elements across all samples). In another example, normalization is achieved by dividing the elements in an array by a statistical value (such as the statistical variance of all elements across all samples). For index values ​​such as beam index, CRI, and SSBRI, normalization can be achieved through one-hot encoding.

[0052] In some embodiments, in order to better transmit data or signals, the base station or terminal needs to obtain measurement parameters, which may include channel state information or other parameters used to characterize the channel, wherein the channel state information may include at least one of the following: channel state information-reference signal resource indicator (CSI-RS resource indicator, CRI), synchronization signal block resource indicator (synchronization signals block resource indicator, SSBRI), layer 1 reference signal received power (L1 reference signal received power, L1-RSRP or RSRP), differential RSRP (differential RSRP); layer 1 reference signal signal-to-interference noise ratio (L1 signal-to-interference noise ratio, L1-SINR or SINR), differential L1-SINR (Differential L1-SINR); reference signal received quality (reference signal received quality, RSRQ), channel quality indicator (CQI), precoding matrix indicator (PMI), layer indicator (LI), rank indicator (RI), precoding information. The precoding information includes the first type of precoding information, such as codebook-based precoding information (a specific example is the N-antenna codebook in LTE, where N = 2, 4, 8, 12, 16, 24, 32, etc., type I codebook, type II codebook, type II port selection codebook, enhanced type II codebook, enhanced type II selection codebook, and further enhanced type II selection codebook in NR). The precoding matrix indication is one type of codebook-based precoding information. The precoding information also includes non-codebook-based implementation methods. For example, the second type of precoding information (such as channel state information obtained based on advanced information processing technologies such as AI)

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

[0054] In some embodiments, the antenna is a physical antenna. In some examples, the antenna is a logical antenna. In some examples, the concepts of port and antenna are interchangeable. In some examples, the antenna is a transmitting antenna. In some examples, the antenna is a receiving antenna. In some examples, the antenna includes an antenna pair consisting of a transmitting antenna and a receiving antenna. In some examples, the antenna may be a uniform linear array. In some examples, the antenna is a uniform planar array, such as an array element / antenna comprising Ng rows and Mg columns, where Ng and Mg are positive integers. In some examples, the antenna is a uniform circular array. In some examples, the antenna may be a non-uniform linear array. In some examples, the antenna is a non-uniform planar array. In some examples, the antenna is a non-uniform circular array. In some examples, the antenna is a directional antenna, and in some examples, the antenna is an omnidirectional antenna. In some examples, the antenna is a dual-polarized antenna. In some examples, the antenna is a single-polarized antenna.

[0055] Figure 3 is a flow chart illustrating a method for transmitting reference signal configuration information according to an embodiment of the present disclosure. For example, the method for transmitting reference signal configuration information according to the present disclosure can be applied to the network architecture shown in Figure 2, and specifically to the base station shown in Figure 2. While the present embodiment uses the CSI-RS as an example for description, the CSI-RS can also be replaced with other types of reference signals.

[0056] As shown in FIG3 , the reference signal configuration information sending method provided in the present disclosure may specifically include the following steps:

[0057] S301: Obtain port description information.

[0058] In some embodiments, when it is necessary to send a reference signal, the first node can obtain port description information of the second node, where the port description information is used to reflect the information processing capability of the second node, including but not limited to at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set (for example, the input size of a model or function used for information processing in the second node), at least one downsampling multiple, at least one second port set description information, and the like.

[0059] For ease of description, at least one second port set is defined herein as K pieces of second port set description information. The K pieces of second port set description information may include at least one of the following: the number of ports in the K second port sets, or a mapping relationship between the K second port sets and the first port set, or K downsampling multiples, or K models, or K model identifiers, or K functions, or K function identifiers, where K is an integer greater than or equal to 1. The specific content of the port description information is described below and is not detailed here.

[0060] In one implementation, the first node may obtain the port description information from the second node, that is, the above S301 may be specifically implemented as: obtaining the port description information by receiving high-layer signaling and / or physical-layer signaling.

[0061] In one implementation, the obtaining of the port description information in S301 may be specifically implemented as follows: the first node may obtain the port description information by receiving at least one of the following: a model identifier; model description information; a function identifier; and function description information.

[0062] A model identifier corresponds to a model and its model description information, and a function identifier corresponds to a function and its function description information.

[0063] In some embodiments, the above-mentioned model description information and function description information include port description information.

[0064] It should be noted that the model mentioned here refers to the data flow between the original input of the sample and the output target through multiple linear or nonlinear components. The model includes a neural network model, a non-artificial intelligence module for processing information or its corresponding model, and a functional component or function that maps input information to output information (the mapping here includes linear mapping and nonlinear mapping). In some implementations, each model corresponds to a model indicator (model ID) or a model identity (model ID). In some implementations, the model identifier may also have one of the following other equivalent names or concepts: model index, first identifier, function identifier (ID), model indicator, etc.

[0065] In some examples, a model includes a model structure and model parameters. For example, if the model is a neural network model, the neural network model includes a neural network model structure and neural network model parameters, which are used to describe the structure of the neural network and the parameter values ​​of the neural network, respectively. A neural network model structure can correspond to multiple neural network model parameters, that is, the neural network model structure can be the same, but the corresponding neural network model parameter values ​​can be different.

[0066] It should be noted that a node can send a functionality or a functionality index to another node to indicate that a terminal in the communication system can use the functionality to process information. The functions mentioned here can also be referred to as functional modules, functional functions, functional mappings, etc., which are used to describe the characteristics or types of information processing methods. There are many types of information processing methods, such as those used for positioning, beam management, CSI prediction, beam prediction, channel estimation, etc., and the characteristics of the information processing methods include but are not limited to the description of the scenarios to which the functions are adapted, the description of input parameters, the description of output parameters, and the type of measurement parameters of the output results. Among them, one function corresponds to one or more information processing methods, and each information processing method can be implemented using one or more models. Or one function can be implemented using one or more models.

[0067] S302: Generate reference signal configuration information according to the port description information.

[0068] In some embodiments, after obtaining the port description information, the first node may generate reference signal configuration information based on the port description information. The reference signal configuration information is used to configure the reference signal. Both communicating parties send and receive reference signals based on the reference signal configuration information, thereby achieving a consistent understanding of the reference signal between the two communicating parties.

[0069] Regarding the case where the first node obtains port description information from the second node: one implementation method is that the first node obtains a set of port description information sent by the second node and determines the reference signal configuration information based on the port description information. Another implementation method is that the first node obtains multiple sets (greater than one set) of port description information sent by the second node, and selects a set of port description information from the multiple port description information based on its own channel conditions or scheduling methods, and generates reference signal configuration information using the selected port description information. Yet another implementation method is that the first node sends multiple sets of port description information to the second node. The second node can select a set of port description information from the multiple sets of port description information based on its own channel conditions or its locally stored model conditions, and feed back the selected port description information or the index corresponding to the selected port description information to the first node. Accordingly, the first node obtains the port description information from the index corresponding to the port description information fed back by the second node.

[0070] It should be noted that the K sets of port description information here correspond to K models, or correspond to K functions, or correspond to K information processing methods. Here, one model (or one function, or one information processing method) corresponds to one type of second port set description information (or one type of second port set number, or one type of port index of a second port set, or one type of mapping relationship from a second port set to a first port set). For example, the i-th set of port description only includes the description information of the i-th second port set, such as the number of ports M of the i-th second port set in one example. i and / or the i-th downsampling factor O i , in one example, the number of ports of the i-th second port set (M 1i , M 2i ) and / or the i-th downsampling factor (O 1i , O 2i ), in one example, the number of ports of the i-th second port set (M 1i , M 2i , M 3i ) and / or the i-th downsampling factor (O 1i , O 2i , O 3i ), i=1,…,K. In some descriptions, K second port sets may be merged into one port description information. In this case, K sets of port description information actually refer to the description information of K second port sets in one port description information, such as the number of ports in the K second port sets, the port index table of the K second port sets, the mapping relationship between the K second port sets and the first port set, etc. For example, in one example, a port description information includes at least the number of ports M of the i-th second port set. i and / or the i-th downsampling factor Oi , i=1,…,K. In one example, a port description information includes at least the number of ports of the i-th second port set (M 1i , M 2i ) and / or the i-th downsampling factor (O 1i , O 2i ), i=1, ..., K. In one example, a port description information includes at least the number of ports of the i-th second port set (M 1i , M 2i , M 3i ) and / or the i-th downsampling factor (O 1i , O 2i , O 3i ), i=1, ..., K, etc., and may also include bias information on the corresponding dimension. Here, K is a positive integer.

[0071] In some embodiments of this document, for the convenience of description or simplicity of description, the number of ports M of the i-th second port set may be i Simply written as M i ; The i-th downsampling factor O i Simply written as O i ; The number of ports M of the i-th second port set on dimension k ki Simply written as M ki , k = 1, 2, 3, etc.; write the number of ports of the second port set of the i-th dimension in two dimensions as (M 1i , M 2i ), which can be equivalent to M 1i , M 2i Write the form separately; write the number of ports of the second port set of the i-th three dimensions as (M 1i , M 2i , M 3i ), which can be equivalent to M 1i , M 2i , M 3i Written in the form of respectively; the i-th downsampling multiple is O on dimension k ki Simply written as O ki , k = 1, 2, 3, etc.; write the i-th downsampling multiple of the two dimensions as (O 1i , O 2i ), which can be equivalent to O 1i , O 2i Write the form separately; write the i-th downsampling multiple of the three dimensions as (O 1i , O 2i , O 3i ), which can be equivalent to O 1i , O 2i , O 3iSimilarly, the number of ports N in the first port set can be simply written as N, the number of ports N in the first port set in the kth dimension k It can be simply written as N k , k = 1, 2, 3; and (N1, N2) can be expressed as the number of ports N1 of the first port set in dimension 1, and the number of ports N2 of the first port set in dimension 2. And (N1, N2, N3) can be expressed as the number of ports N1 of the first port set in dimension 1, the number of ports N2 of the first port set in dimension 2, and the number of ports N3 of the first port set in dimension 3.

[0072] S303: Send reference signal configuration information.

[0073] In some embodiments, after generating the reference signal configuration information, the first node may send the reference signal configuration information to the second node. In this way, the first node and the second node can have a consistent understanding of the reference signal configuration, thereby ensuring that one or both communicating parties correctly processes the reference signal.

[0074] In some embodiments, the reference signal configuration information includes at least port description information.

[0075] It should be understood that the port description information included in the reference signal configuration information here is not exactly the same as the port description information in S301 above. For example, the port description information in S301 above may include K second port set description information, and the port description information included in the reference signal configuration information here may include K0 second port set description information, where K0 is less than or equal to K. In some examples, the port description information obtained by the first node can be referred to as the first port description information, and the port description information included in the reference signal configuration information or the port description information sent by the first node to the second node can be referred to as the second port description information. The first port description information and the second port description information are both port description information, and may only differ in the number of second port description information included.

[0076] In some examples, the reference signal configuration information includes port description information, where the port description information includes the number of ports in a second port set, a mapping relationship between the second port set and the first port set, a downsampling factor, etc. The first node sends a reference signal configuration signal, and upon receiving the reference signal configuration information, the second node can determine the port description information based on the reference signal configuration information and determine an information processing method based on the port description information, thereby achieving consistent understanding of the reference signal configuration between both communicating parties.

[0077] In some embodiments, the reference signal configuration information also includes at least one of the following: reference signal type; reference signal precoding enable flag (i.e., whether the reference signal is precoded); time domain index set and / or frequency domain index set indication for carrying reference signal resources; model identifier; model description information; function identifier; function description information.

[0078] The reference signal type includes, but is not limited to, at least one of the following: a reference signal for model monitoring, a reference signal for model inference, and a reference signal for data collection. Exemplarily, the reference signal precoding enable flag includes two values: the first value indicates that the reference signal is precoded when transmitted, and the second value indicates that the reference signal is not precoded when transmitted.

[0079] FIG4 is a flow chart of another method for sending reference signal configuration information provided by an embodiment of the present disclosure. As shown in FIG4 , the first node further performs the following steps:

[0080] S304: Send a reference signal according to the reference signal configuration information.

[0081] In some embodiments, the first node originally intends to transmit a full-dimensional reference signal. To reduce reference signal overhead, the first node may downsample the full-dimensional reference signal based on the reference signal configuration information, obtain a downsampled reference signal, and transmit the downsampled reference signal. For example, the reference signal of N ports may be downsampled to obtain a reference signal of M ports, and the reference signal of M ports may be actually transmitted. Where M is less than N, and both M and N are positive integers.

[0082] In one implementation, the above S304 can be specifically implemented as follows: sending reference signals corresponding to at least two port set patterns in different time slots. The port set pattern reflects a method of mapping the reference signal from the first port set to the second port set, such as a port index list of the second port set, such as an N-bit map, in which the i-th bit is used to indicate whether the port of the first port set actually transmits the reference signal (or whether it belongs to the second port set). If the port actually transmits the reference signal (or belongs to the second port set), the first value is taken, otherwise the second value is taken, and all ports that actually transmit the reference signal constitute the second port set. Here, the first value and the second value are two different values, such as the first value is non-zero and the second value is 0, the first value is TRUE, and the second value is FALSE.

[0083] In another implementation manner, the above S304 may be specifically implemented as: sending reference signals corresponding to at least two port set patterns on different resource blocks (RBs).

[0084] That is, the first node will send the reference signal corresponding to the reference signal configuration information based on the reference signal configuration information. In a specific example, the first node sends reference signals with the same port set pattern in different time slots. In a specific example, the base station sends reference signals with K different port set patterns in K different time slots. In a specific example, the base station sends reference signals with the same port set pattern at different frequency domain granularities (such as different RBs or subbands). In a specific example, the base station sends reference signals with K different port set patterns in K different frequency domain groups.

[0085] It should be understood that transmitting reference signals corresponding to at least two port set patterns allows the second node to recover the downsampled reference signal based on multiple port set patterns, effectively improving the accuracy of the second node's recovery of the full-dimensional reference signal. Alternatively, one port set pattern corresponds to the first port set and can be used as a label, for example, for model training or model monitoring.

[0086] It should be understood that step S304 may not be performed in some examples. In some examples, step S304 and step S303 are performed in the same time slot or time. In some examples, step S304 and step S303 are performed in different time slots or times. In some examples, step S304 may be performed before step S303.

[0087] The port description information in the above S301 is introduced in detail below.

[0088] In some embodiments, the port description information includes at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set, at least one downsampling multiple, and at least one second port set description information.

[0089] In some embodiments, the number of ports of the first set of ports is greater than the number of ports of the second set of ports.

[0090] In some embodiments, the port index list of the second port set is a subset of the port index list of the first port set.

[0091] It should be noted that port description information can also be called port indication information. It is mainly used to describe at least one of the following:

[0092] the number of ports of the first port set and / or the number of ports of the second port set;

[0093] a port index of the first port set and / or a port index of one or more second port sets;

[0094] a mapping relationship between one or more second port sets and the first port set;

[0095] One or more downsampled values;

[0096] The second port set is a subset of the first port set; in other words, the number of ports in the first port set is greater than the number of ports in the second port set.

[0097] In some embodiments, the port description information further includes: the number of receiving ports; a receiving port identifier; and a reference signal precoding enable identifier (ie, whether the reference signal is precoded during transmission).

[0098] That is, the base station (the first node mentioned above) can obtain the port description information based on the configuration of the antenna or the model obtained by itself. In some examples, the base station obtains the port description information based on the port description information sent by the receiving terminal (the second node mentioned above). In some examples, the port description information is part of the model description information. In some examples, the port description information is a model identifier, where one model identifier corresponds to a model or model description information. In some examples, the port description information is part of the function description information. In some instances, the port description information is a function identifier, where one function identifier corresponds to a function or function port description information. In some examples, the port description information also includes the number of receiving antennas of the terminal. In some examples, the port description information also includes the receiving port identifier of the terminal. In some examples, the port description information also includes a reference signal precoding enable identifier.

[0099] The above-mentioned first port set may be a port set for which reference signal sampling is not performed, and the second port set may be a reference signal port set for downsampling. Alternatively, the first port set is a port set in which the base station actually participates in data transmission, and the second port set is a reference signal port set for actual transmission. For example, in one example, the second port set includes M ports, and the base station actually transmits CSI-RS resources including M ports. These M ports can also be called partial ports. When transmitting data, the base station actually uses N ports (the first port set), which means that there may be N antennas, that is, all ports or antennas are used to transmit data. Generally speaking, M and N are integers, and M is less than N. Among them, N is O times of M, that is, N=M*O, O=2, 3, 4, 8, etc. are downsampling.

[0100] That is, in some examples, the port description information is a port set pattern, such as a CSI-RS port pattern. In one example, the port set pattern can be a 1*N array or bit map, where N is the number of all ports (first port set). In another example, the port pattern can be an N1*N2 dimensional array or bit map, where. N1 and N2 indicate that the ports of the first port set are two-dimensional, such as N1 rows and N2 columns, where N=N1*N2. In another example, in a dual-polarized antenna, if N1 or N2 does not include a polarized antenna, then N=2*N1*N2. Each bit in the bit map indicates whether the corresponding port has a corresponding CSI-RS port transmitting. Or whether it belongs to the second port set. For example, when the first value is taken, it means that it belongs to the second port set, and when the second value is taken, it does not belong to the second port set, and there is no actual CSI-RS transmission. The first value can be a number greater than 0 or TRUE. The second value can be 0 or a negative number, or FALSE.

[0101] In some examples, the first node can obtain port description information sent by the second node, where the port description information includes description information of K second port sets. For example, after receiving the port description information, the first node will select one second port set description information from the K second port set description information, and send the selected second port set description information as part of the port description information of the reference information configuration information to the second node, or send the port description information including the selected second port set description information in a separate high-level signaling and / or physical layer signaling.

[0102] In some examples, the first node can send port description information to the second node, where the port description information includes description information of K second port sets. For example, after receiving the port description information, the second node will select one second port set description information from the K second port set description information, and send the selected second port set description information or indication information of the port description information as part of the port description information to the first node. After receiving the port description information including the second port set description information or the indication information of the port description information, the first node determines reference signal configuration information and sends the reference signal configuration information to the second node. The reference signal configuration information may include the port description information including the second port set description information determined by the first node.

[0103] In some embodiments, the port description information includes one of the following: the number of ports of the first port set includes the number of ports in each dimension of Z dimensions; the number of ports of the K second port sets includes the number of ports in each dimension of Z dimensions; the K downsampling multiples include the downsampling multiple corresponding to each dimension of the Z dimensions; Z is the dimension of the port, and Z is a positive integer.

[0104] In some embodiments, for a scenario using a linear antenna array (where Z is 1), the port description information includes one of the following: the number of ports N in the first port set and the number of ports M in the K second port sets; the number of ports N in the first port set and the K downsampling factors O; the number of ports M in the K second port sets and the K downsampling factors O; the number of ports M in the K second port sets; and the K downsampling factors O. Where N, M, O, and K are positive integers.

[0105] In some embodiments, for the scenario of a planar antenna array (Z is 2 above), the port description information includes one of the following: the number of ports of the first port set (N1, N2) and the number of ports of the K second port sets (M1, M2); the number of ports of the first port set (N1, N2) and the K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2) and the K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2); the K downsampling multiples (O1, O2); wherein N1, N2, M1, M2, O1, O2, and K are positive integers.

[0106] In some embodiments, for the scenario of a 3D antenna array (Z is 3), the port description information includes one of the following: the number of ports of the first port set (N1, N2, N3) and the number of ports of the K second port sets (M1, M2, M3); the number of ports of the first port set (N1, N2, N3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3); K downsampling multiples (O1, O2, O3); wherein N1, N2, N3, M1, M2, M3, O1, O2, O3, and K are positive integers. Here, N i , M i , O i They correspond respectively to the number of ports of the first port set in the i-th dimension, the number of ports of the second port set in the i-th dimension, and the number of downsampled ports in the i-th dimension.

[0107] In some embodiments, the port description information includes at least one second port set description information, including at least one of the following: the number of ports in K second port sets, the mapping relationship between the K second port sets and the first port set, K downsampling multiples, K models, K model identifiers, K functions, K function identifiers, where K is an integer greater than or equal to 1.

[0108] That is to say, the port description information may include K port groups, each port group corresponding to a model or a function; the downsampling multiple includes K values, each value corresponding to a model or a function; where K is a positive integer, and each port group includes one or more port indices. That is, one model corresponds to one model identifier, one function corresponds to one function identifier, one function or model corresponds to the number of ports in a second port set, or one function or model corresponds to the mapping relationship between a second port set and the first port set, or one function or model corresponds to a downsampling multiple.

[0109] In some examples, the port description information is a high-level signaling, and the high-level signaling includes two values, that is, the number of ports N in the first port set and the number of ports M in the second port set. In some examples, the port description information is two high-level signalings, the first high-level signaling is used to indicate the value of the number of ports N in the first port set, and the second high-level signaling is used to indicate the value of the number of ports M in the second port set. Where N represents the number of ports in the first port set, M represents the number of ports in the second port set, M and N are positive integers, and M < N. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0110] In some examples, the port description information is a high-level signaling, and the high-level signaling includes four values, that is, the number of ports (N1, N2) in the first port set and the number of ports (M1, M2) in the second port set. In some examples, the port description information is two high-level signalings, the first high-level signaling is used to indicate the number of ports (N1, N2) in the first port set, and the second high-level signaling is used to indicate the number of ports (M1, M2) in the second port set. Where M1, M2 represent the number of rows and columns of the second port set, N1, N2 represent the number of rows and columns of the first port set, M and N are positive integers, and M1 < N1, M2 < N2. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0111] In some examples, the port description information is a high-level signaling, and the high-level signaling includes multiple values, that is, the number of ports N in the first port set, the number of ports (M1,..., M KIn some examples, the port description information is two high-level signalings, the first high-level signaling is used to indicate the value of the number of ports N of the first port set, and the second high-level signaling is used to indicate the number of ports of the second port set (M1, ..., M K ) (corresponding to K second port description information). Wherein, M1, ..., M K Respectively represent the number of ports in the second port set of model 1 to model K, and N represents the number of ports in the first port set. K are all positive integers, and M1,…,M K are different from each other and are all smaller than N. In some examples, the first higher layer signaling may not be included in the port indication signaling.

[0112] In some examples, the port description information is a high-level signaling, which includes multiple values, namely, the number of ports in the first port set (N1, N2), the number of ports in the second port set (M 1i ,…,M 2i ), i = 1, ..., K. In some examples, the port description information is two high-level signalings, each of which includes multiple values. The first high-level signaling is used to indicate the number of ports in the first port set (N1, N2), and the second high-level signaling is used to indicate the number of ports in the second port set (M 1i ,…,M 2i ), i=1,…,K (corresponding to K second port description information). Wherein, M 1i , M 2i , represents the number of port rows and port columns of the second port set of model i, i = 1, ..., K, N1 and N2 represent the number of port rows and port columns of the first port set. N1 and N2, M 1i ,…,M 2i ,i=1,…,K are all positive integers, and M 1i ,,i=1,…,K are different from each other and are all smaller than N1,M 2i , i=1, ..., K are different from each other and are all smaller than N2. In some examples, the first higher layer signaling may not be included in the port indication signaling.

[0113] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the value of the number of ports N in the first port set and the value of the downsampling multiple O. In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the value of the number of ports N in the first port set, and the second high-level signaling is used to indicate the value of the downsampling multiple O. Then, the number of ports M in the second port set can be obtained according to N / O. Here, N represents the number of ports in the first port set, M represents the number of ports in the second port set, O is the downsampling multiple, M and N are positive integers, and M < N. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0114] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the value of the number of ports N in the first port set and the downsampling multiple O i , i = 1,..., K (corresponding to K pieces of second port description information). In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the value of the number of ports N in the first port set, and the second high-level signaling is used to indicate the downsampling multiple O of the i-th model i , i = 1,..., K. Here, M i , i = 1,..., K represents the number of ports in the second port set of model i (corresponding to K pieces of second port description information), and can be obtained according to N / O i obtained, N represents the number of ports in the first port set. N, M1,..., M K are all positive integers, and M1,..., M K are all different from each other and are all less than N. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0115] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the number of ports (N1, N2) in the first port set and the downsampling multiples (O1, O2). In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the number of ports (N1, N2) in the first port set, and the second high-level signaling is used to indicate the downsampling multiples (O1, O2). Here, M1, M2 represent the number of rows and columns of ports in the second port set, and can be obtained according to N1 / O1 and N2 / O2. N1, N2 represent the number of rows and columns of ports in the first port set, M and N are positive integers, and M1 < N1, M2 < N2, and O1, O2 respectively represent the downsampling multiples corresponding to the two dimensions. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0116] In some examples, the port description information is a high-level signaling, which includes multiple values. A high-level signaling is used to indicate the number of ports (N1, N2) in the first port set and the downsampling factor O 1i , …, O 2i ), i = 1, …, K. In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the number of ports (N1, N2) in the first port set, and the second high-level signaling is used to indicate the downsampling factor O 1i , …, O 2i ), i = 1, …, K (corresponding to K pieces of second port description information). Among them, M 1i , M 2i represent the number of port rows and port columns in the second port set of model i, which can be obtained according to N1 / O 1i , N2 / O 2i , i = 1, …, K. N1 and N2 represent the number of port rows and port columns in the first port set. N1 and N2, M 1i , …, M 2i , i = 1, …, K are all positive integers, and M 1i , i = 1, …, K are different from each other and are all less than N1, and M 2i , i = 1, …, K are different from each other and are all less than N2. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0117] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the values of the number of ports M in the second port set and the downsampling factor O. In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the value of the number of ports M in the second port set, and the second high-level signaling is used to indicate the value of the downsampling factor O. Then, the number of ports N in the first port set can be obtained according to M * O. Among them, M represents the number of ports in the second port set, N represents the number of ports in the first port set, O is the downsampling factor, M and N are positive integers, and M < N. In some examples, the first high-level signaling may not be included in the port indication signaling.

[0118] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the value of the number of ports M in the second port set and the downsampling factor O i , i = 1, …, K. In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the value of the number of ports M in the second port set, and the second high-level signaling is used to indicate the downsampling factor O i of the i-th model, i = 1, …, K. Among them, M i, where \(i = 1,\ldots,K\) represents the number of ports in the second port set of model \(i\), and the number \(N\) of the first port set can be obtained according to \(M\) i *O i obtained. \(N, M_1,\ldots,M\) K are all positive integers, and \(M_1,\ldots,M\) K are distinct and all less than \(N\). In some examples, the first high-level signaling may not be included in the port indication signaling.

[0119] In some examples, the port description information is a high-level signaling, and a high-level signaling is used to indicate the number of ports \((M_1, M_2)\) in the second port set and the downsampling multiples \((O_1, O_2)\). In some examples, the port description information is two high-level signalings. The first high-level signaling is used to indicate the number of ports \((M_1, M_2)\) in the second port set, and the second high-level signaling is used to indicate the downsampling multiples \((O_1, O_2)\). Here, \(M_1, M_2\) represent the number of port rows and port columns in the second port set, and \(N_1, N_2\) represent the number of port rows and port columns in the first port set, which can be obtained according to \(N_1 = M_1\times O_1\) and \(N_2 = M_2\times O_2\). \(M\) and \(N\) are positive integers, and \(M_1 < N_1\), \(M_2 < N_2\). In some examples, the first high-level signaling may not be included in the port indication signaling.

[0120] In some examples, the port description information is a high-level signaling, and the high-level signaling includes multiple values. A high-level signaling is used to indicate the number of ports \((M\) 1i ,\ldots,M\) 2i ), \(i = 1,\ldots,K\), and the downsampling multiples \((O\) 1i ,\ldots,O\) 2i ), \(i = 1,\ldots,K\). In some examples, the port description information is two high-level signalings, and the high-level signalings include multiple values. The first high-level signaling is used to indicate the number of ports \((M\) 1i ,\ldots,M\) 2i ), \(i = 1,\ldots,K\). The second high-level signaling is used to indicate the downsampling multiples \((O\) 1i ,\ldots,O\) 2i ), \(i = 1,\ldots,K\). Here, \(M\) 1i , \(M\) 2i represent the number of port rows and port columns in the second port set of model \(i\), and \(N_1\) and \(N_2\) represent the number of port rows and port columns in the first port set, which can be obtained according to \(N_1 = M\) 1i \times O\) 1i , \(N_2 = M\) 2i \times O\) 2i obtained, \(i = 1,\ldots,K\). \(N_1\) and \(N_2\), \(M\) 1i ,\ldots,M\) 2i , \(i = 1,\ldots,K\) are all positive integers, and \(M\) 1i,…,M 2i ,i=1,…,K are different and all smaller than N1,M 2i , i=1,…,K are different from each other and are all smaller than N2. In some examples, the first high-layer signaling may not be included in the port indication signaling.

[0121] In some embodiments, the port description information further includes port index offset information, wherein the port index offset information is used to indicate a starting index of a port in the second port set. In some examples, the starting index of a port is a non-negative integer less than or equal to a downsampling multiple.

[0122] In some examples, the port description information may also include port index bias information F, where F is a non-negative integer less than or equal to the downsampling multiple O or the number of ports M in the second port set, and is used to indicate the port index starting point in the second port set.

[0123] In some examples, the port description information may also include port index bias information F1, F2, where F1 and F2 are non-negative integers less than or equal to the downsampling multiples O1 and O2, and are used to represent the port starting index of the first dimension and the port starting index of the second dimension in the second port set, respectively.

[0124] In some examples, the port description information may also include port index offset information F i , i=1,…,K, where F i is less than or equal to the i-th downsampling multiple O i Or the number of ports M of the i-th second port set i A non-negative integer representing the starting index of the port in the second port set of the i-th model.

[0125] In some examples, the port description information may also include port index offset information F 1i , F 2i , i=1,…,K, where F 1i is the i-th downsampling multiple O corresponding to dimension 1 or less 1i The number of ports M of the i-th second port set corresponding to dimension 1 1i A non-negative integer, F 2i is the i-th downsampling multiple O corresponding to dimension 2 or less 2i The number of ports M of the i-th second port set corresponding to dimension 2 2i A non-negative integer representing the starting index of the first and second dimensions of the second port set of the i-th model.

[0126] In some embodiments, the port set pattern is determined according to an index of at least one second port set, wherein the second port set may be determined according to at least one of the following rules:

[0127] 1. The second port set includes at least two ports, and the index interval of at least two ports is the same;

[0128] 2. The second port set includes at least one port in each polarization direction, and the index interval of at least one port in each polarization direction is the same;

[0129] 3. The second port set includes at least two rows and two columns of ports, and the index interval of the ports in each dimension is the same;

[0130] 4. The second port set includes at least two rows and two columns of ports in each polarization direction;

[0131] 5. The second port set includes at least two ports in each dimension, and the index intervals of at least two ports in each dimension are the same;

[0132] 6. The second port set includes at least one port on each code division multiplexing (CDM) group of the first port set. For example, at least one port is selected from each CDM group of the first port set to form the second port set.

[0133] Figure 5 is a flow chart of a method for receiving reference signal configuration information provided by an embodiment of the present disclosure. Exemplarily, the method for receiving reference signal configuration information provided by the present disclosure can be applied to the network architecture shown in Figure 2, and specifically to the terminal in Figure 2.

[0134] As shown in FIG5 , the reference signal configuration information receiving method provided in the present disclosure may specifically include the following steps:

[0135] S501: Receive reference signal configuration information, and receive a reference signal according to the reference signal configuration information.

[0136] In some embodiments, the second node may receive reference signal configuration information sent by the first node and receive the reference signal based on the reference signal configuration information. The reference signal configuration information includes port description information used by both communicating parties. Thus, both communicating parties use the same port description information to process the reference signal. That is, the first node and the second node maintain a consistent understanding of the reference signal, thereby ensuring that one or both communicating parties correctly process the reference signal.

[0137] In some embodiments, before S501 above, the second node further performs the following: S500. S500: Send port description information. The second node may send port description information corresponding to K models or functions supported by the second node (e.g., including K second port description information, which may be referred to herein as first port description information) to the first node, to instruct the first node to generate reference signal configuration information based on the port description information.

[0138] In some embodiments, the second node sends the port description information via a high-layer signaling and / or a physical layer signaling, and accordingly, the first node obtains the port description information by receiving high-layer signaling and / or a physical layer signaling, wherein the high-layer signaling and / or the physical layer signaling is different from the reference signal configuration information.

[0139] In some embodiments, as shown in FIG6 , S500 may be specifically implemented as follows: the second node sends the port description information by sending high-layer signaling and / or physical-layer signaling.

[0140] Exemplarily, the high-layer signaling and / or physical layer signaling may include one set of port description information, or may include multiple sets of port description information. Alternatively, the second node may receive multiple sets of port description information sent by the first node, select one set of port description information based on its own channel conditions or its own locally stored model conditions, and carry the selected port description information in the high-layer signaling and / or physical layer signaling to send to the first node (for example, here, it may be referred to as the second port description information).

[0141] In some embodiments, S500 may be further specifically implemented as follows: the second node may send the port description information by sending at least one of the following: a model identifier; model description information; a function identifier; and function description information. The description of the model and function is described above on the first node side and will not be repeated here.

[0142] In some embodiments, as shown in FIG7 , after S501 , the second node further executes the following S502 - S503 .

[0143] S502: Measure a reference signal to obtain first channel information.

[0144] S503: Determine an information processing mode according to the acquired port description information, and process the first channel information according to the determined information processing mode to obtain second channel information.

[0145] In some examples, the port description information is obtained by receiving reference signal configuration information, wherein the reference signal configuration information includes the port description information. In some examples, the port description information is obtained by receiving other high-layer and / or physical layer signaling.

[0146] The number of ports in the first channel information is smaller than the number of ports in the second channel information.

[0147] For the above S502-S503, after the second node receives the reference signal sent by the first node according to the received reference signal configuration information, it can measure the reference signal to obtain first channel information (corresponding to the above second port set). Further, according to the determined port description information, an information processing method is determined, and the first channel information is processed to obtain second channel information (corresponding to the above first port set).

[0148] The information processing method mentioned here can be an advanced signal processing technology. The advanced signal processing technology includes but is not limited to an artificial intelligence-based method, such as taking the first channel information as the input of the artificial intelligence model, and the artificial intelligence model outputs the second channel information after a series of operations. Of course, the second channel information can also be obtained from the first channel information using a traditional difference method or other linear and nonlinear mapping methods. The second node obtains channel state information (CSI) based on the second channel information and feeds back the CSI, wherein the method for obtaining CSI based on the second channel information includes but is not limited to an artificial intelligence-based method or a traditional codebook-based method, which is not limited here. In some examples, the first channel information can also be directly used as the input of the (artificial intelligence) model, and the model directly outputs the CSI. Furthermore, the second node feeds back the CSI.

[0149] It should be noted that, in the embodiment of the present application, feedback CSI may also be referred to as transmission CSI or sending CSI, such as carrying the channel state information on the uplink transmission resource for feedback or transmission. The uplink transmission resource and the corresponding CSI are both indicated by a channel state information report. In the embodiment of the present application, feedback CSI may also be referred to as transmission CSI or sending CSI, such as carrying the channel state information on the uplink transmission resource for feedback or transmission. The uplink transmission resource and the corresponding CSI are both indicated by a channel state information report. In one example, transmitting a CSI report refers to transmitting the content to be transmitted as indicated in the CSI report, including but not limited to channel state information, where transmission includes sending or receiving, and may also be replaced by feedback or receiving. In one example, transmitting a CSI report refers to transmitting the content to be transmitted as indicated by the CSI report via uplink transmission resources, including but not limited to channel state information, where transmission includes sending or receiving, and may also be replaced by feedback or receiving.

[0150] In one implementation, receiving the reference signal in S501 may be specifically implemented as: receiving reference signals corresponding to at least two port set patterns in different time slots, wherein the port set pattern reflects a method of mapping the reference signal from a first port set to a second port set.

[0151] In another implementation manner, the receiving of the reference signal in S501 may be specifically implemented as: receiving reference signals corresponding to at least two port set patterns on different resource blocks.

[0152] It should be noted that, for the relevant contents of the port description information and the reference signal configuration information, reference may be made to the relevant description of the first node (ie, the base station side), which will not be elaborated here.

[0153] Embodiments of the present disclosure provide a method for sending and receiving reference signal configuration information. In this method, a first node may obtain port description information and generate reference signal configuration information based on the port description information. The reference signal configuration information is then sent. The port description information describes the information processing capabilities of a second node and includes, but is not limited to, at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports in the first port set, the number of ports in at least one second port set, at least one downsampling factor, at least one second port set description information, and the like. For ease of description, K second port set description information is defined herein. The K second port set description information includes at least one of the following: the number of ports in the K second port sets, or a mapping relationship between the K second port sets and the first port set, or K downsampling factors, or K models, or K model identifiers, or K functions, or K function identifiers, where K is an integer greater than or equal to 1. In some examples, the port description information also includes second port set description information. The first node may generate reference signal configuration information based on the port description information and send the reference signal configuration information to the second node. In some examples, the reference signal configuration information includes port description information (of course, it can also be provided through a high-level and / or physical transmission port description information outside the reference signal configuration information). The port description information here includes the number of ports of a second port set, or a mapping relationship between a second port set and a first port set, or a downsampling multiple, etc. After the second node receives the reference signal configuration information, it can determine the port description information based on the reference signal configuration information, and determine the information processing method based on the port description information. This allows the communicating parties to have a consistent understanding of the reference signal configuration, thereby ensuring that one or both communicating parties correctly processes the reference signal.

[0154] It is understandable that, in order to implement the above functions, the communication device (which can be the first node and the second node) includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0155] The embodiments of the present disclosure can divide the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0156] FIG8 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure, which can execute the reference signal configuration information sending method provided by the above method embodiment. As shown in FIG8 , there is an acquisition module 801 , a generation module 802 and a sending module 803 .

[0157] The acquisition module 801 is used to acquire port description information; the generation module 802 is used to generate reference signal configuration information according to the described port information; and the sending module 803 is used to send the reference signal configuration information.

[0158] In some embodiments, the acquisition module 801 is specifically configured to acquire the port description information by receiving high-layer signaling and / or physical-layer signaling.

[0159] In some embodiments, the acquisition module 801 is specifically configured to acquire the port description information by receiving at least one of the following: a model identifier; model description information; a function identifier; and function description information.

[0160] In some embodiments, the port description information includes at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set, at least one downsampling multiple, and at least one second port set description information.

[0161] In some embodiments, the number of ports of the first set of ports is greater than the number of ports of the second set of ports.

[0162] In a specific example, the port description information includes the number of ports N of the first port set and the number of ports M of the K second port sets; the number of ports N of the first port set and the K downsampling multiples O; the number of ports M of the K second port sets and the K downsampling multiples O; the number of ports M of the K second port sets; and the K downsampling multiples O; wherein N, M, O, and K are positive integers.

[0163] In some embodiments, the port description information includes one of the following: the number of ports of the first port set (N1, N2) and the number of ports of the K second port sets (M1, M2); the number of ports of the first port set (N1, N2) and K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2) and K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2); K downsampling multiples (O1, O2); wherein N1, N2, M1, M2, O1, O2, and K are positive integers.

[0164] In some embodiments, the port description information includes one of the following: the number of ports of the first port set (N1, N2, N3) and the number of ports of the K second port sets (M1, M2, M3); the number of ports of the first port set (N1, N2, N3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3); K downsampling multiples (O1, O2, O3); wherein N1, N2, N3, M1, M2, M3, O1, O2, O3, and K are positive integers.

[0165] In some embodiments, the port description information includes at least one second port set description information, including at least one of the following: the number of ports of the K second port sets, the mapping relationship between the K second port sets and the first port sets, K downsampling multiples, K models, K model identifiers, K functions, K function identifiers, where K is an integer greater than or equal to 1.

[0166] In some embodiments, the port description information further includes: port index offset information; wherein the port index offset information is used to indicate a starting index of a port in the second port set.

[0167] In some embodiments, the port description information further includes: the number of receiving ports; the receiving port identifier; and the reference signal precoding enable identifier.

[0168] In some embodiments, the port set pattern is determined based on the index of at least one second port set, wherein the second port set is determined based on at least one of the following rules: the second port set includes at least two ports, and the index interval of at least two ports is the same; the second port set includes at least one port in each polarization direction, and the index interval of at least one port in each polarization direction is the same; the second port set includes at least two rows and two columns of ports, and the index interval of the ports in each dimension is the same; the second port set includes at least two rows and two columns of ports in each polarization direction; the second port set includes at least two ports in each dimension, and the index interval of at least two ports in each dimension is the same; the second port set includes at least one port on each CDM group of the first port set.

[0169] In some embodiments, the port index list of the second port set is a subset of the port index list of the first port set.

[0170] In some embodiments, the reference signal configuration information includes at least port description information.

[0171] In some embodiments, the reference signal configuration information includes at least one of the following: reference signal type; reference signal precoding enable flag; time domain index set and / or frequency domain index set indication for carrying reference signal resources; model identifier; model description information; function identifier; function description information.

[0172] In some embodiments, the sending module 803 is further configured to send a reference signal according to the reference signal configuration information.

[0173] In some embodiments, the sending module 803 is specifically configured to send reference signals corresponding to at least two port set patterns on different time slots; or send reference signals corresponding to at least two port set patterns on different resource blocks.

[0174] FIG9 is a schematic diagram of the structure of another communication device provided by an embodiment of the present disclosure, which can execute the reference signal configuration information receiving method provided by the above method embodiment. As shown in FIG9 , the communication device includes: a first receiving module 901 and a second receiving module 902 .

[0175] The first receiving module 901 is configured to receive reference signal configuration information. The second receiving module 902 is configured to receive a reference signal according to the reference signal configuration information.

[0176] In some embodiments, the above apparatus further includes: a sending module 903. The sending module 903 is configured to send port description information.

[0177] In some embodiments, the sending module 903 is specifically configured to send the port description information by sending high-layer signaling and / or physical-layer signaling.

[0178] In some embodiments, the sending module 903 is specifically configured to send the port description information by sending at least one of the following: a model identifier; a model description information; a function identifier; and a function description information.

[0179] In some embodiments, the port description information includes at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set, at least one downsampling multiple, and at least one second port set description information.

[0180] In some embodiments, the number of ports of the first set of ports is greater than the number of ports of the second set of ports.

[0181] In some embodiments, the port description information includes one of the following: the number of ports N of the first port set and the number of ports M of the K second port sets; the number of ports N of the first port set and the K downsampling multiples O; the number of ports M of the K second port sets and the K downsampling multiples O; the number of ports M of the K second port sets; the K downsampling multiples O; wherein N, M, O, and K are positive integers.

[0182] In some embodiments, the port description information includes one of the following: the number of ports of the first port set (N1, N2) and the number of ports of the K second port sets (M1, M2); the number of ports of the first port set (N1, N2) and K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2) and K downsampling multiples (O1, O2); the number of ports of the K second port sets (M1, M2); K downsampling multiples (O1, O2); wherein N1, N2, M1, M2, O1, O2, and K are positive integers.

[0183] In some embodiments, the port description information includes one of the following: the number of ports of the first port set (N1, N2, N3) and the number of ports of the K second port sets (M1, M2, M3); the number of ports of the first port set (N1, N2, N3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3) and K downsampling multiples (O1, O2, O3); the number of ports of the K second port sets (M1, M2, M3); K downsampling multiples (O1, O2, O3); wherein N1, N2, N3, M1, M2, M3, O1, O2, O3, and K are positive integers.

[0184] In some embodiments, the port description information includes at least one second port set description information, including at least one of the following: the number of ports of the K second port sets, the mapping relationship between the K second port sets and the first port sets, K downsampling multiples, K models, K model identifiers, K functions, K function identifiers, where K is an integer greater than or equal to 1.

[0185] In some embodiments, the port description information further includes: port index offset information; wherein the port index offset information is used to indicate a starting index of a middle port in the second port set.

[0186] In some embodiments, the port description information further includes: the number of receiving ports; the receiving port identifier; and the reference signal precoding enable identifier.

[0187] In some embodiments, the port set pattern is determined based on the index of at least one second port set, wherein the second port set is determined based on at least one of the following rules: the second port set includes at least two ports, and the index interval of at least two ports is the same; the second port set includes at least one port in each polarization direction, and the index interval of at least one port in each polarization direction is the same; the second port set includes at least two rows and two columns of ports, and the index interval of the ports in each dimension is the same; the second port set includes at least two rows and two columns of ports in each polarization direction; the second port set includes at least two ports in each dimension, and the index interval of at least two ports in each dimension is the same; the second port set includes at least one port on each CDM group of the first port set.

[0188] In some embodiments, the port index list of the second port set is a subset of the port index list of the first port set.

[0189] In some embodiments, the reference signal configuration information includes at least port description information.

[0190] In some embodiments, the reference signal configuration information includes at least one of the following: reference signal type; precoding enable identifier; time domain index set and / or frequency domain index set indication for carrying reference signal resources; model identifier; model description information; function identifier; function description information.

[0191] In some embodiments, the apparatus further includes: a measurement module 904 and a processing module 905. The measurement module 904 is configured to measure a reference signal to obtain first channel information; the processing module 905 is configured to determine an information processing mode based on the acquired port description information, and process the first channel information based on the determined information processing mode to obtain second channel information.

[0192] In some embodiments, the second receiving module 902 is specifically configured to receive reference signals corresponding to at least two port set patterns in different time slots; or receive reference signals corresponding to at least two port set patterns in different resource blocks.

[0193] In the case of implementing the functions of the above-mentioned integrated modules in hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. As shown in Figure 10, the communication device 100 includes: a processor 1002 and a bus 1004. Optionally, the communication device may also include a memory 1001; optionally, the communication device may also include a communication interface 1003.

[0194] Processor 1002 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1002 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1002 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0195] The communication interface 1003 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0196] The memory 1001 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0197] As a possible implementation, the memory 1001 may exist independently of the processor 1002. The memory 1001 may be connected to the processor 1002 via a bus 1004 and used to store instructions or program codes. When the processor 1002 calls and executes the instructions or program codes stored in the memory 1001, the reference signal configuration information sending and receiving method provided in the embodiment of the present disclosure can be implemented.

[0198] In another possible implementation, the memory 1001 may also be integrated with the processor 1002 .

[0199] Bus 1004 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 1004 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG10 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0200] In some embodiments, the memory 1001 stores executable instructions. When the processor 1002 executes the executable instructions, the communication device executes the reference signal configuration information sending and receiving method as described in any of the above embodiments.

[0201] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the reference signal configuration information sending and receiving method as described in any of the above embodiments.

[0202] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0203] An embodiment of the present disclosure provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the method for sending and receiving reference signal configuration information as described in any one of the above embodiments.

[0204] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for sending reference signal configuration information, applied to a first node, the method comprising: Get port description information; Generate reference signal configuration information according to the port description information; The reference signal configuration information is sent.

2. The method according to claim 1, wherein: The obtaining of the port description information includes: The port description information is obtained by receiving high-layer signaling and / or physical-layer signaling.

3. The method according to claim 1, wherein: The obtaining of the port description information includes obtaining the port description information by receiving at least one of the following: Model identification; model description information; function identification; function description information.

4. The method according to claim 1, wherein: The port description information includes at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set, at least one downsampling multiple, and at least one second port set description information.

5. The method according to claim 4, wherein: The number of ports in the first port set is greater than the number of ports in the second port set.

6. The method according to claim 1, wherein: The port description information includes one of the following: The number of ports N of the first port set and the number of ports M of the K second port sets; The number of ports N and K downsampling factors O of the first port set; The number of ports M of the K second port sets and the K downsampling multiples O; The number of ports M of the K second port sets; K downsampling multiples O; Among them, N, M, O, and K are positive integers.

7. The method according to claim 1, wherein: The port description information includes one of the following: The number of ports of the first port set (N1, N2) and the number of ports of the K second port sets (M1, M2); The number of ports (N1, N2) and K downsampling multiples (O1, O2) of the first port set; The number of ports (M1, M2) and the K downsampling multiples (O1, O2) of the K second port sets; The number of ports of the K second port sets (M1, M2); K downsampling multiples (O1, O2); Among them, N1, N2, M1, M2, O1, O2, and K are positive integers.

8. The method according to claim 1, wherein: The port description information includes one of the following: The number of ports of the first port set (N1, N2, N3) and the number of ports of the K second port sets (M1, M2, M3); The number of ports (N1, N2, N3) and K downsampling multiples (O1, O2, O3) of the first port set; The number of ports (M1, M2, M3) and the K downsampling multiples (O1, O2, O3) of the K second port sets; The number of ports of the K second port sets (M1, M2, M3); K downsampling multiples (O1, O2, O3); Among them, N1, N2, N3, M1, M2, M3, O1, O2, O3, and K are positive integers.

9. The method according to claim 4, wherein: The port description information includes at least one second port set description information, including at least one of the following: The number of ports of the K second port sets, the mapping relationship between the K second port sets and the first port sets, K downsampling multiples, K models, K model identifiers, K functions, K function identifiers, where K is an integer greater than or equal to 1.

10. The method according to claim 4, wherein: The port description information also includes: Port index offset information; wherein the port index offset information is used to indicate the starting index of the port in the second port set.

11. The method according to claim 1, wherein: The port description information also includes: Number of receiving ports; Receive port ID; Reference signal precoding enable flag.

12. The method according to claim 4, wherein: The port set pattern is determined according to an index of at least one second port set, wherein the second port set is determined according to at least one of the following rules: The second port set includes at least two ports, and the index intervals of the at least two ports are the same; The second port set includes at least one port in each polarization direction, and the index interval of the at least one port in each polarization direction is the same; The second port set includes ports in at least two rows and two columns, and the index intervals of the ports in each dimension are the same; The second port set includes at least two rows and two columns of ports in each polarization direction; The second port set includes at least two ports in each dimension, and index intervals of the at least two ports in each dimension are the same; The second set of ports includes at least one port on each CDM group of the first set of ports.

13. The method according to claim 4, wherein: The port index list of the second port set is a subset of the port index list of the first port set.

14. The method according to claim 1, wherein: The reference signal configuration information at least includes port description information.

15. The method according to claim 1, wherein: The reference signal configuration information includes at least one of the following: Reference signal type; Reference signal precoding enable flag; An indication of a time domain index set and / or a frequency domain index set used to carry reference signal resources; Model identification; model description information; function identification; function description information.

16. The method according to claim 1, wherein: The method further comprises: A reference signal is sent according to the reference signal configuration information.

17. The method according to claim 16, wherein: The sending of the reference signal according to the reference signal configuration information comprises one of the following: Sending reference signals corresponding to at least two port set patterns in different time slots; Reference signals corresponding to at least two port set patterns are sent on different resource blocks.

18. A method for receiving reference signal configuration information, applied to a second node, the method comprising: Reference signal configuration information is received, and a reference signal is received according to the reference signal configuration information.

19. The method according to claim 18, wherein: Before receiving the reference signal configuration information, the method further includes: Send port description information.

20. The method according to claim 19, wherein: The sending port description information includes: The port description information is sent by sending high-layer signaling and / or physical-layer signaling.

21. The method according to claim 19, wherein: The sending port description information includes: Send port description information by sending at least one of the following: Model identification; model description information; function identification; function description information.

22. The method according to claim 19, wherein: The port description information includes at least one of the following: a port set pattern, a port index list of a first port set, a port index list of at least one second port set, the number of ports of the first port set, the number of ports of at least one second port set, at least one downsampling multiple, and at least one second port set description information.

23. The method according to claim 22, wherein: The port set pattern is determined according to an index of at least one second port set, wherein the second port set is determined according to at least one of the following rules: The second port set includes at least two ports, and the index intervals of the at least two ports are the same; The second port set includes at least one port in each polarization direction, and the index interval of the at least one port in each polarization direction is the same; The second port set includes ports in at least two rows and two columns, and the index intervals of the ports in each dimension are the same; The second port set includes at least two rows and two columns of ports in each polarization direction; The second port set includes at least two ports in each dimension, and index intervals of the at least two ports in each dimension are the same; The second set of ports includes at least one port on each CDM group of the first set of ports.

24. The method according to claim 22, wherein: The port index list of the second port set is a subset of the port index list of the first port set.

25. The method of claim 18, wherein: The reference signal configuration information at least includes port description information.

26. The method of claim 18, wherein: The reference signal configuration information includes at least one of the following: Reference signal type; Precoding enable flag; An indication of a time domain index set and / or a frequency domain index set used to carry reference signal resources; Model identification; model description information; function identification; function description information.

27. The method according to claim 18, wherein: The method further comprises: measuring the reference signal to obtain first channel information; An information processing mode is determined according to the acquired port description information, and the first channel information is processed according to the determined information processing mode to obtain second channel information.

28. The method of claim 18, wherein: The receiving a reference signal according to the reference signal configuration information comprises one of the following: receiving reference signals corresponding to at least two port set patterns at different time slots; Reference signals corresponding to at least two port set patterns are received on different resource blocks.

29. A communication device, comprising: a processor and a memory for storing instructions executable by the processor; The processor is configured to execute the instruction so that the communication device executes the reference signal configuration signal sending method according to any one of claims 1-17, or the reference signal configuration information receiving method according to any one of claims 18-28.

30. A computer-readable storage medium having computer instructions stored thereon, wherein when the computer instructions are executed on a communication device, the communication device executes the reference signal configuration signal sending method as described in any one of claims 1 to 17, or the reference signal configuration information receiving method as described in any one of claims 18 to 28.

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