WO2024067665A1 - Csi预测处理方法、装置、通信设备及可读存储介质 - Google Patents
Csi预测处理方法、装置、通信设备及可读存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/373—Predicting channel quality or other radio frequency [RF] parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3913—Predictive models, e.g. based on neural network models
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Definitions
- the present application belongs to the field of communication technology, and specifically relates to a channel state information (CSI) prediction and processing method, device, communication equipment and readable storage medium.
- CSI channel state information
- channel prediction can be used to compensate for the delay between channel measurement and actual scheduling, thereby improving throughput.
- the accuracy of CSI prediction is closely related to the prediction parameters. For prediction models with insufficient generalization capabilities, different prediction models need to be used for different channels, resulting in high overhead for prediction model adjustment or prediction model search.
- the embodiments of the present application provide a CSI prediction processing method, apparatus, communication device and readable storage medium to solve the problem of high overhead of prediction model adjustment or prediction model search due to the need to use different prediction models for different channels.
- CSI prediction processing method including:
- the first device receives first information sent by the second device, where the first information includes: a model identification ID of a first prediction model and/or a first prediction parameter, where the first prediction model and/or the first prediction parameter are determined by the second device based on a first similarity between a first channel measurement result and a second channel measurement result.
- a CSI prediction processing method including:
- the second device acquires a first similarity between the first channel measurement result and the second channel measurement result
- the second device determines a first prediction model and/or a first prediction parameter according to the first similarity
- the second device sends first information to the first device, where the first information includes: a model ID and/or a first prediction parameter of the first prediction model.
- a CSI prediction processing device including:
- the first receiving module is used to receive first information sent by the second device, wherein the first information includes: a model identification ID of a first prediction model and/or a first prediction parameter, wherein the first prediction model and/or the first prediction parameter are determined by the second device based on a first similarity between a first channel measurement result and a second channel measurement result.
- a CSI prediction processing device including:
- An acquisition module configured to acquire a first similarity between a first channel measurement result and a second channel measurement result
- a determination module configured to determine a first prediction model and/or a first prediction parameter according to the first similarity
- the third sending module is used to send first information to the first device, where the first information includes: a model ID and/or a first prediction parameter of the first prediction model.
- a communication device comprising: a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect or the second aspect.
- a readable storage medium on which a program or instruction is stored.
- the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.
- a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the second aspect.
- a computer program/program product is provided, wherein the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.
- a communication system which includes a terminal and a network side device, wherein the terminal is used to execute the steps of the method described in the first aspect or the second aspect, and the network side device is used to execute the steps of the method described in the first aspect or the second aspect.
- the first device can obtain the CSI prediction parameters and/or prediction model provided by the second device based on the channel characteristic comparison result, that is, the second device can also provide the first device with prediction parameters suitable for the actual channel and/or a prediction model matching the actual channel without performing prediction verification. This can ensure that the accuracy of the prediction is high enough at the beginning, improve the accuracy and efficiency of the CSI prediction, and reduce the overhead of prediction model adjustment or prediction model search.
- Figure 1 is a schematic diagram of a neural network
- Figure 2 is a schematic diagram of a neuron
- FIG3 is a schematic diagram of CSI prediction based on AI
- FIG4 is a schematic diagram of predicting performance at different future moments
- FIG5 is a schematic diagram of predicting the performance of the future +5 ms using different amounts of historical CSI
- FIG6 is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present application.
- FIG. 7 is a flowchart of a CSI prediction method according to an embodiment of the present application.
- FIG8 is a second flowchart of the CSI prediction processing method provided in an embodiment of the present application.
- FIG9 is a third flowchart of the CSI prediction processing method provided in an embodiment of the present application.
- FIG10 is a schematic diagram of a CSI prediction processing device according to an embodiment of the present application.
- FIG11 is a second schematic diagram of a CSI prediction processing device provided in an embodiment of the present application.
- FIG12 is a schematic diagram of a terminal provided in an embodiment of the present application.
- FIG13 is a schematic diagram of a network side device provided in an embodiment of the present application.
- FIG. 14 is a schematic diagram of a communication device provided in an embodiment of the present application.
- first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
- the first object can be one or more.
- “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
- LTE Long Term Evolution
- LTE-A Long Term Evolution
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency Division Multiple Access
- NR New Radio
- 6G 6th Generation
- AI Artificial Intelligence
- This application uses a neural network as an example for illustration, but does not limit the specific type of AI module.
- the structure of the neural network is shown in FIG1 .
- the neural network is composed of neurons, and the schematic diagram of neurons is shown in Figure 2.
- a1, a2, ... aK are inputs
- w is the weight (multiplicative coefficient)
- b is the bias (additive coefficient)
- ⁇ (.) is the activation function
- z a1w1 + ... + akwk + ... + aKwK + b.
- Common activation functions include Sigmoid function, tanh function, Rectified Linear Unit (ReLU), etc.
- the parameters of a neural network can be optimized using an optimization algorithm.
- An optimization algorithm is a type of algorithm that can minimize or maximize an objective function (sometimes called a loss function).
- the objective function is often a mathematical combination of model parameters and data. For example, given data X and its corresponding label Y, a neural network model f(.) is constructed. With the model, the predicted output f(x) can be obtained based on the input x, and the difference between the predicted value and the true value (f(x)-Y) can be calculated. This is the loss function. If a suitable W,b is found to minimize the value of the above loss function, the smaller the loss value, the closer the model is to the actual situation.
- the common optimization algorithms are basically based on the error back propagation (BP) algorithm.
- BP error back propagation
- the basic idea of the BP algorithm is that the learning process consists of two processes: forward propagation of the signal and back propagation of the error.
- the input sample is passed from the input layer, processed by each hidden layer layer by layer, and then passed to the output layer. If the actual output of the output layer does not match the expected output, it enters the error back propagation stage.
- Error back propagation is to propagate the output error layer by layer through the hidden layer to the input layer in some form, and distribute the error to all units in each layer, so as to obtain the error signal of each layer unit.
- This error signal is used as the basis for correcting the weights of each unit. This signal is forward propagated.
- the process of adjusting the weights of each layer in the back propagation of errors is repeated over and over again.
- the process of continuous adjustment of weights is the learning and training process of the network. This process continues until the error of the network output is reduced to an acceptable level, or until the pre-set number of learning times is reached.
- the selected AI algorithms and models vary depending on the type of solution.
- the main way to improve the network performance of the fifth generation mobile communication technology (5th Generation, 5G) with the help of AI is to enhance or replace existing algorithms or processing modules through algorithms and models based on neural networks.
- algorithms and models based on neural networks can achieve better performance than those based on deterministic algorithms.
- the more commonly used neural networks include deep neural networks, convolutional neural networks, and recurrent neural networks.
- CSI Channel State Information
- AI model analyzes the time domain variation characteristics of the channel and outputs the future CSI. See Figure 3 for details.
- Figure 5 describes the performance of using different numbers of historical CSIs to predict the future +5ms. It can be seen that as the number of historical CSIs increases, the prediction accuracy will also improve. However, more historical CSIs mean higher complexity and cache overhead, so the number of historical CSIs cannot be increased blindly.
- the accuracy of CSI prediction is closely related to the prediction parameters. For prediction models with insufficient generalization capabilities, different prediction models need to be used for different channels.
- the node that performs prediction does not necessarily store all models, but dynamically requests new prediction models based on actual needs. Even if the prediction node stores a prediction model suitable for the current channel, the cost of model adjustment or model search can be reduced by estimating the prediction parameters or prediction model in advance.
- FIG6 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
- the wireless communication system includes a terminal 61 and a network side device 62.
- the wireless communication system may be a communication system with wireless AI functions such as 5G-Advanced or 6G.
- the terminal 61 may be a mobile phone, a tablet computer, a laptop computer, a personal digital assistant, or a notebook computer.
- the terminal side devices include: PDA, PDA, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (MID), augmented reality (AR)/virtual reality (VR) equipment, robot, wearable device (Wearable Device), vehicle user equipment (VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication function, such as refrigerator, TV, washing machine or furniture, etc.), game console, personal computer (personal computer, PC), teller machine or self-service machine, etc.
- wearable devices include: smart watch, smart bracelet, smart headset, smart glasses, smart jewelry (smart bracelet, smart bracelet, smart ring, smart necklace, smart anklet, smart anklet, etc.), smart wristband, smart clothing, etc.
- the terminal involved in the present application can also be a chip in the terminal, such as a modem chip, a system on chip (SoC). It should be noted that the specific type of terminal 61 is not limited in the embodiment of the present application.
- the network side device 62 may include an access network device or a core network device, wherein the access network device may also be referred to as a wireless access network device, a wireless access network (Radio Access Network, RAN), a wireless access network function or a wireless access network unit.
- the access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a WiFi node, etc.
- the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home B node, a home evolved B node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
- the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access and mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (BSF), Application Function (AF), etc.
- MME mobility management entity
- AMF Access and Mobility Management Function
- SMF Ses
- the prediction model involved in this application can also be called an AI model.
- an embodiment of the present application provides a CSI prediction processing method, which is applied to a first device, and the specific steps include: Step 701 .
- Step 701 The first device receives first information sent by the second device, where the first information includes: a model identifier (ID) of a first prediction model and/or a first prediction parameter, where the first prediction model and/or the first prediction parameter are determined by the second device based on a first similarity between a first channel measurement result and a second channel measurement result.
- ID model identifier
- the second device selects the first prediction model and/or first prediction parameter applicable to the current channel environment based on the first similarity between the first channel measurement result and the second channel measurement result. For example, when the first similarity is higher than a threshold, it indicates that the current channel environment is relatively stable, and the second device selects the corresponding first prediction model and/or first prediction parameter; and when the first similarity is lower than a threshold, it indicates that the current channel environment is unstable, and the second device selects the corresponding first prediction model and/or first prediction parameter.
- the first channel measurement result and the second channel measurement result may be two consecutive channel measurement results. It can be understood that this embodiment does not limit the time interval between the first channel measurement result and the second channel measurement result.
- the second device can provide the first device with prediction parameters suitable for the actual channel and/or a prediction model matching the actual channel without performing prediction verification, thereby ensuring that the accuracy of the prediction is high enough at the beginning.
- the first device may be a network side device or a terminal
- the second device may be a terminal or a network side device
- the second device is a device for performing CSI prediction, that is, the second device may be referred to as a node for performing prediction
- the first device is a terminal
- the second device is a network side device
- both the first device and the second device are network side devices
- both the first device and the second device are terminals
- the first device is a network side device and the second device is Prepared as a terminal.
- the method further comprises:
- the first device sends second information to the second device, where the second information includes at least one of the following: a prediction instruction, a second prediction model, or a model ID of the second prediction model.
- the prediction instructions include but are not limited to one of the following: start CSI prediction, stop CSI prediction, continue CSI prediction, pause CSI prediction, switch CSI prediction model or algorithm (the algorithm can be a non-AI CSI prediction algorithm).
- the second information can be generated based on the first information, that is, the first device can refer to the prediction model and prediction parameters recommended by the second device and feedback the prediction instructions and/or prediction model to the second device, or the second information is not generated based on the first information.
- Example 1 After receiving the first information, the first device may send the second information to the second device based on the first information, that is, the second information is obtained based on the first information.
- the first device may send a prediction instruction and/or a second prediction model or a model ID of the second prediction model to the second device according to the model identification ID and/or the first prediction parameter of the first prediction model provided by the second device, so that the second device performs CSI prediction according to the second prediction model or stops CSI prediction or continues CSI prediction or suspends CSI prediction or switches CSI prediction model or algorithm.
- Example 2 The first device sends second information to the second device, and the second information is not obtained based on the first information, that is, the first device sends a second prediction model or a model ID and a prediction instruction of the second prediction model to the second device, so that the second device can perform CSI prediction according to the second prediction model or stop CSI prediction or continue CSI prediction or suspend CSI prediction or switch CSI prediction model or algorithm.
- the method further includes:
- the first device sends third information to the second device, where the third information includes at least one of the following: a first time interval, a second time interval, a first time, a second time, and a third time;
- the first time interval is the time interval between the first channel measurement result and the second channel measurement result for comparison. Assuming that the first channel measurement result is measured at time T1, the second channel measurement result is measured at time [T1+first time interval].
- the second time interval is the time position of CSI prediction to be performed, that is, when performing CSI prediction, at which future time point is the CSI predicted, and the time point to be predicted is generally [the time of the most recent channel measurement+the second time interval].
- the first time refers to the time of measuring the first channel measurement result
- the second time refers to the time of measuring the second channel measurement result
- the third time is the time position of CSI prediction to be performed.
- the time position for CSI prediction to be performed in the present application refers to the time position corresponding to the CSI prediction result. For example, if CSI prediction is performed at 0 ms and the CSI predicted is the CSI of the future 5 ms, then the second time interval represents the time of the future 5 ms to be predicted.
- the value of at least one of the first time interval, the second time interval, the first time, the second time and the third time is an integer multiple of the first time granularity
- the first time granularity includes at least one of the following: time slot, millisecond, symbol, half frame, frame, CSI measurement period, CSI feedback period, Channel State Information-Reference Signal (CSI-RS) period.
- CSI-RS Channel State Information-Reference Signal
- the first time interval and the second time interval may be equal.
- the first information further includes at least one of the following:
- the predictability indicates that the second device can use the first time interval to perform CSI prediction, or the predictability indicates that the second device cannot use the first time interval to perform CSI prediction, for example, "1" indicates that the first time interval can be used to perform CSI prediction, and "0" indicates that the first time interval cannot be used to perform CSI prediction.
- Predictability can be obtained in a variety of ways, such as setting a threshold, and if the first similarity is higher than the threshold, it is unpredictable, and if the first similarity is lower than or equal to the threshold, it is predictable;
- the first prediction parameter includes at least one of the following:
- the first time difference is a time difference value for adjusting the first time interval suggested by the second device, for example, the suggested time interval can be calculated by [first time interval + first time difference value].
- the first time difference value can be a specific time value, or a quantized or tabular time value (for example, "00" represents +1 first time granularity, "01” represents +2 first time granularities, "10” represents -1 first time granularity, and "11” represents -2 first time granularities).
- the second time difference is a time difference suggested by the second device for adjusting the second time interval.
- a first CSI interval (or referred to as a first CSI cycle), where the first CSI interval is an interval between multiple historical CSIs used for prediction;
- a first CSI window length where the first CSI window length is a time domain length occupied by multiple historical CSIs used for prediction.
- the first prediction model is the same as or different from the second prediction model.
- the first device can obtain the CSI prediction parameters and/or prediction model provided by the second device based on the channel characteristic comparison result, that is, the second device can provide the first device with prediction parameters suitable for the actual channel and/or a prediction model matching the actual channel without performing prediction verification. This can ensure that the accuracy of the prediction is high enough at the beginning, improve the accuracy and efficiency of the CSI prediction, and reduce the overhead of prediction model adjustment or prediction model search.
- an embodiment of the present application provides a CSI prediction processing method, which is applied to a second device.
- the specific steps include: step 801 , step 802 , and step 803 .
- Step 801 The second device obtains a first similarity between a first channel measurement result and a second channel measurement result
- Step 802 The second device determines a first prediction model and/or a first prediction parameter according to the first similarity
- the second device can determine, based on the first similarity, the first prediction model and/or the first prediction parameter that are suitable for the current channel environment.
- Step 803 The second device sends first information to the first device, where the first information includes: a model ID and/or a first prediction parameter of the first prediction model.
- the method further includes:
- the second device receives second information sent by the first device, where the second information includes at least one of the following: a prediction instruction, a second prediction model, or a model ID of the second prediction model.
- the method further includes:
- the second device receives third information sent by the first device, where the third information includes at least one of the following: a first time interval, a second time interval, a first time, a second time, and a third time;
- the first time interval is the time interval between the first channel measurement result and the second channel measurement result for comparison
- the second time interval is the time position for CSI prediction to be performed
- the first time refers to the time for measuring the first channel measurement result
- the second time refers to the time for measuring the second channel measurement result
- the third time is the time position for CSI prediction to be performed.
- the value of at least one of the first time interval, the second time interval, the first time, the second time and the third time is an integer multiple of a first time granularity
- the first time granularity includes at least one of the following: time slot, millisecond, symbol, half frame, frame, CSI measurement period, CSI feedback period, channel state information reference signal CSI-RS period.
- the first time interval and the second time interval may be equal.
- the first information further includes at least one of the following:
- predictability where the predictability indicates that the second device can perform CSI prediction using the first time interval, or the predictability indicates that the second device cannot perform CSI prediction using the first time interval;
- the first prediction parameter includes at least one of the following:
- a first CSI interval where the first CSI interval is an interval between multiple historical CSIs used for prediction
- a first CSI window length where the first CSI window length is a time domain length occupied by multiple historical CSIs used for prediction.
- the first prediction model is the same as or different from the second prediction model.
- the second device acquires a first similarity between the first channel measurement result and the second channel measurement result, including:
- the second device determines, according to at least one of pre-configured information, information indicated by the network side, information agreed upon in the protocol, and information negotiated between the first device and the second device, a method for acquiring a first similarity between the first channel measurement result and the second channel measurement result;
- the second device obtains the first similarity according to the obtaining method.
- the acquisition method includes:
- a first similarity between the first channel measurement result and the second channel measurement result is obtained through a first neural network, wherein the first channel measurement result and the second channel measurement result are input information of the first neural network, and the first similarity is related to output information of the first neural network.
- the output information of the first neural network includes correlation information, and a larger value of the correlation information indicates a higher similarity between the first channel measurement result and the second channel measurement result;
- the output information of the first neural network includes difference class information, and a lower value of the difference class information indicates a higher similarity between the first channel measurement result and the second channel measurement result.
- the acquisition method includes:
- the relevant information includes relevant information in at least one of the following domains: time domain, frequency domain, spatial domain, delay domain, Doppler domain, beam domain, and angle domain;
- a first similarity between the first channel measurement result and the second channel measurement result is determined according to the relevant information.
- the first prediction model is the same as or different from the second prediction model.
- the second device can provide CSI prediction parameters and/or prediction models to the first device based on the channel characteristic comparison results, that is, the second device can provide the first device with prediction parameters suitable for the actual channel and/or a prediction model that matches the actual channel without performing prediction verification. This can ensure that the accuracy of the prediction is high enough at the beginning, improve the efficiency of the prediction, and reduce the overhead of prediction model adjustment or prediction model search.
- Example 1 The implementation of the present application is described below in conjunction with Example 1 and Example 2.
- Step 901 The first device sends third information, wherein the second device is a device for performing CSI prediction.
- the third information includes at least one of the following:
- the first time interval is a time interval between a first channel measurement result and a second channel measurement result for comparison.
- the second channel measurement result is measured at time [T1+first time interval].
- the second time interval is the time position of the CSI prediction to be performed, that is, when performing CSI prediction, the CSI at which future time point is predicted, and the time point to be predicted is generally [the time of the most recent channel measurement + the second time interval].
- the second time refers to a time when the measurement result of the second channel is measured
- the value of at least one of the first time interval, the second time interval, the first time, the second time and the third time is an integer multiple of the first time granularity, and the first time can be any one of a time slot, millisecond, symbol, half frame, frame, CSI measurement period, CSI feedback period, CSI-RS period, etc.
- the second time interval may be equal to the first time interval.
- Step 902 The second device calculates a first similarity between a first channel measurement result and a second channel measurement result
- Step 903 The second device sends the first information
- the first message includes at least one of the following:
- the first similarity can be obtained by a first neural network (such as a Siamese network, a contrastive learning network, a matching network, a prototypical network, a relation network, etc. based on binary cross entropy, a contrast function or a triplet loss, where the input of the neural network is the first channel measurement result and the second channel measurement result.
- the output layer of the neural network may be correlation information, where a larger value of the correlation information indicates a higher similarity; the output layer of the neural network may also be difference information, where a lower value of the difference information indicates a higher similarity.
- the first similarity can also be obtained by calculating relevant information between the first channel measurement result and the second channel measurement result (such as mutual correlation coefficient, mutual correlation matrix, mutual covariance information, mutual covariance matrix, etc.), and the relevant information includes relevant information of at least one of the following domains: time domain, frequency domain, spatial domain, delay domain, Doppler domain, beam domain, angle domain, etc.
- the method for obtaining the first similarity may be pre-defined by the protocol, or may be a consensus reached between the first device and the second device through signaling interaction.
- the method of obtaining predictability includes but is not limited to: setting a threshold, if the first similarity is higher than the threshold, the first time interval cannot be used for CSI prediction, if the first similarity is lower than or equal to the threshold, the first time interval can be used for CSI prediction.
- the first prediction parameter includes but is not limited to at least one of the following: a third time interval, a fourth time interval, a first time difference, a second time difference, a fourth time, a fifth time, a sixth time, a first CSI interval (or period), a first CSI number, and a first CSI window length.
- the third time interval is a time interval recommended by the second device
- the third time interval is a time interval between the first channel measurement result and the second channel measurement result for comparison
- the fourth time interval is a time position for CSI prediction to be performed.
- the first time difference is a time difference recommended by the second device to adjust the first time interval, for example, the recommended time interval can be calculated by [first time interval + first time difference].
- the first time difference can be a specific time value, or it can be a quantized or tabular time value, for example, "00" represents +1 first time granularity, "01” represents +2 first time granularity, "10” represents -1 first time granularity, and "11” represents -2 first time granularity.
- the second time difference is the time difference used to adjust the second time interval
- the fourth time refers to the time of measuring the first channel measurement result
- the fifth time refers to the time of measuring the second channel measurement result
- the sixth time is the time position of the CSI prediction to be performed
- the first CSI interval (or period) is the interval (or period) between multiple historical CSIs used for prediction.
- the first CSI number is the number of multiple historical CSIs used for prediction.
- the first CSI window length is the time domain length occupied by multiple historical CSIs used for prediction.
- a first prediction model ID that is, an ID of a CSI prediction model suitable for the current environment obtained by the second device based on the first similarity judgment.
- Step 904 The first device sends second information.
- the first device may obtain the second information according to the first information, and then the first device sends the second information to the second device, or the first device may obtain the second information in other ways, and then the first device sends the second information to the second device.
- the second information includes at least one of the following:
- Prediction instruction which is used to indicate at least one of the following: start CSI prediction (activation), stop CSI prediction (deactivation), continue CSI prediction, pause CSI prediction, and switch CSI prediction model or algorithm (the algorithm here can be a non-AI CSI prediction algorithm).
- the second prediction model may be the first prediction model.
- the first device and the second device may be a terminal or a network side device, respectively.
- the signal sending end and the signal receiving end involved may be a terminal or a network side device, and the signaling or information in the related technology may be multiplexed into the following four cases:
- the information in the interaction process (such as the third information and the first information) can be carried in at least one of the following signaling or information:
- PUSCH Physical uplink shared channel
- the information in the interaction process (such as: the third information, the matching result, the relevant information of the AI network model received by the first device, and at least one of the second information) can be carried in at least one of the following signaling or information:
- MAC CE Medium Access Control Element
- NAS Non-Access Stratum
- DCI Downlink Control Information
- SIB System Information Block
- the information in the interaction process (such as: the third information, the matching result, the relevant information of the AI network model received by the first device, and at least one of the second information) can be carried in at least one of the following signaling or information:
- PSCCH Physical Sidelink Control Channel
- PSSCH Physical Sidelink Shared Channel
- PSBCH Physical Sidelink Broadcast Channel
- PSDCH Physical Sidelink Discovery Channel
- the information in the interaction process (such as: the above-mentioned third information, the above-mentioned matching result, the relevant information of the AI network model received by the first device, and at least one of the above-mentioned second information) can be carried in at least one of the following signaling or information:
- an embodiment of the present application provides a CSI prediction processing apparatus, which is applied to a first device.
- the apparatus 1000 includes:
- the first receiving module 1001 is used to receive first information sent by the second device, wherein the first information includes: a model identification ID and/or a first prediction parameter of a first prediction model, wherein the first prediction model and/or the first prediction parameter are determined by the second device according to a first similarity between a first channel measurement result and a second channel measurement result.
- the device further includes:
- the first sending module is used to send second information to the second device, where the second information includes at least one of the following: a prediction instruction, a second prediction model, or a model ID of the second prediction model.
- the device further includes:
- a second sending module configured to send third information to the second device, where the third information includes at least one of the following: a first time interval, a second time interval, a first time, a second time, and a third time;
- the first time interval is the time interval between the first channel measurement result and the second channel measurement result for comparison
- the second time interval is the time position for CSI prediction to be performed
- the first time refers to the time for measuring the first channel measurement result
- the second time refers to the time for measuring the second channel measurement result
- the third time is the time position for CSI prediction to be performed.
- the value of at least one of the first time interval, the second time interval, the first time, the second time and the third time is an integer multiple of the first time granularity
- the first time granularity includes at least one of the following: time slot, millisecond, symbol, half frame, frame, CSI measurement period, CSI feedback period, channel state information reference signal CSI-RS period.
- the first time interval and the second time interval may be equal.
- the first information further includes at least one of the following:
- predictability where the predictability indicates that the second device can perform CSI prediction using the first time interval, or the predictability indicates that the second device cannot perform CSI prediction using the first time interval;
- the first prediction parameter includes at least one of the following:
- a first CSI interval where the first CSI interval is an interval between multiple historical CSIs used for prediction
- a first CSI window length where the first CSI window length is a time domain length occupied by multiple historical CSIs used for prediction.
- the first prediction model is the same as or different from the second prediction model.
- the device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- an embodiment of the present application provides a CSI prediction processing apparatus, which is applied to a second device.
- the apparatus 1100 includes:
- An acquisition module 1101 is configured to acquire a first similarity between a first channel measurement result and a second channel measurement result
- a determination module 1102 configured to determine a first prediction model and/or a first prediction parameter according to the first similarity
- the third sending module 1103 is used to send first information to the first device, where the first information includes: a model ID and/or a first prediction parameter of the first prediction model.
- the device further includes:
- the second receiving module is used to receive second information sent by the first device, wherein the second information includes at least one of the following: Item: prediction instruction, second prediction model, or model ID of the second prediction model.
- the device further includes:
- a third receiving module configured to receive third information sent by the first device, where the third information includes at least one of the following: a first time interval, a second time interval, a first time, a second time, and a third time;
- the first time interval is the time interval between the first channel measurement result and the second channel measurement result for comparison
- the second time interval is the time position for CSI prediction to be performed
- the first time refers to the time for measuring the first channel measurement result
- the second time refers to the time for measuring the second channel measurement result
- the third time is the time position for CSI prediction to be performed.
- the value of at least one of the first time interval, the second time interval, the first time, the second time and the third time is an integer multiple of a first time granularity
- the first time granularity includes at least one of the following: time slot, millisecond, symbol, half frame, frame, CSI measurement period, CSI feedback period, channel state information reference signal CSI-RS period.
- the first time interval and the second time interval may be equal.
- the first information further includes at least one of the following:
- predictability where the predictability indicates that the second device can perform CSI prediction using the first time interval, or the predictability indicates that the second device cannot perform CSI prediction using the first time interval;
- the first prediction parameter includes at least one of the following:
- a first CSI interval where the first CSI interval is an interval between multiple historical CSIs used for prediction
- a first CSI window length where the first CSI window length is a time domain length occupied by multiple historical CSIs used for prediction.
- the first prediction model is the same as or different from the second prediction model.
- obtaining a first similarity between a first channel measurement result and a second channel measurement result includes:
- the first similarity is acquired according to the acquisition method.
- the acquisition method includes:
- a first similarity between the first channel measurement result and the second channel measurement result is obtained through a first neural network, wherein the first channel measurement result and the second channel measurement result are input information of the first neural network, and the first similarity is related to output information of the first neural network.
- the output information of the first neural network includes correlation information, and a larger value of the correlation information indicates a higher similarity between the first channel measurement result and the second channel measurement result;
- the output information of the first neural network includes difference class information, and a lower value of the difference class information indicates a higher similarity between the first channel measurement result and the second channel measurement result.
- the acquisition method includes:
- the relevant information includes relevant information in at least one of the following domains: time domain, frequency domain, spatial domain, delay domain, Doppler domain, beam domain, and angle domain;
- a first similarity between the first channel measurement result and the second channel measurement result is determined according to the relevant information.
- the first prediction model is the same as or different from the second prediction model.
- the device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 8 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- FIG12 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 1200 includes but is not limited to In: at least some of the components among the RF unit 1201, the network module 1202, the audio output unit 1203, the input unit 1204, the sensor 1205, the display unit 1206, the user input unit 1207, the interface unit 1208, the memory 1209 and the processor 1210.
- the terminal 1200 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1210 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system.
- a power source such as a battery
- the terminal structure shown in FIG12 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
- the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processor 12041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
- the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
- the user input unit 507 includes a touch panel 12071 and at least one of other input devices 12072.
- the touch panel 12071 is also called a touch screen.
- the touch panel 12071 may include two parts: a touch detection device and a touch controller.
- Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
- the RF unit 1201 can transmit the data to the processor 1210 for processing; in addition, the RF unit 1201 can send uplink data to the network side device.
- the RF unit 1201 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
- the memory 1209 can be used to store software programs or instructions and various data.
- the memory 1209 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
- the memory 1209 may include a volatile memory or a non-volatile memory, or the memory 1209 may include both volatile and non-volatile memories.
- the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
- the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), or a volatile memory.
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- the memory 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
- the processor 1210 may include one or more processing units; optionally, the processor 1210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1210.
- the terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 7 or Figure 8 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- FIG. 13 is a structural diagram of a communication device applied in an embodiment of the present invention.
- the communication device 1300 includes: a processor 1301, a transceiver 1302, a memory 1303 and a bus interface, wherein the processor 1301 may be responsible for managing the bus architecture and general processing.
- the memory 1303 may store data used by the processor 1301 when performing operations.
- the communication device 1300 further includes: a program stored in the memory 1303 and executable on the processor 1301 , and when the program is executed by the processor 1301 , the steps in the method shown in FIG. 7 or FIG. 8 are implemented.
- the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1301 and memory represented by memory 1303.
- the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
- the bus interface provides an interface.
- the transceiver 1302 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
- the embodiment of the present application further provides a communication device 1400, including a processor 1401 and a memory 1402, wherein the memory 1402 stores a program or instruction that can be run on the processor 1401.
- the communication device 1400 is a terminal
- the program or instruction is executed by the processor 1401 to implement the various steps of the method embodiment of FIG. 7 or FIG. 8.
- the communication device 1400 is a network side device
- the program or instruction is executed by the processor
- each step of the method embodiment of FIG. 7 or FIG. 8 is implemented and the same technical effect can be achieved. To avoid repetition, it will not be described here.
- An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
- a program or instruction is stored.
- the method of Figure 7 or Figure 8 and the various processes of the above-mentioned embodiments are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
- the processor is the processor in the terminal described in the above embodiment.
- the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
- An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes shown in Figure 7 or Figure 8 and the various method embodiments mentioned above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
- the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes shown in Figure 7 or Figure 8 and the various method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be described here.
- An embodiment of the present application further provides a communication system, which includes a terminal and a network-side device.
- the terminal is used to execute the various processes as shown in Figure 7 and the various method embodiments described above
- the network-side device is used to execute the various processes as shown in Figure 8 and the various method embodiments described above, and can achieve the same technical effects. To avoid repetition, they are not repeated here.
- the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute the methods described in each embodiment of the present application.
- a storage medium such as ROM/RAM, magnetic disk, optical disk
- a terminal which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.
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Abstract
Description
Claims (25)
- 一种信道状态控制信息CSI预测处理方法,包括:第一设备接收第二设备发送的第一信息,所述第一信息包括:第一预测模型的模型标识ID和/或第一预测参数,所述第一预测模型和/或第一预测参数是所述第二设备根据第一信道测量结果和第二信道测量结果的第一相似度确定的。
- 根据权利要求1所述的方法,其中,所述方法还包括:所述第一设备向第二设备发送第二信息,所述第二信息包括以下至少一项:预测指令、第二预测模型或第二预测模型的模型ID。
- 根据权利要求1所述的方法,其中,所述方法还包括:所述第一设备向所述第二设备发送第三信息,所述第三信息包括以下至少一项:第一时间间隔、第二时间间隔、第一时间、第二时间和第三时间;其中,所述第一时间间隔是用于对比的所述第一信道测量结果和所述第二信道测量结果之间的时间间隔,所述第二时间间隔是待进行CSI预测的时间位置,所述第一时间是指测量所述第一信道测量结果的时间,所述第二时间是指测量所述第二信道测量结果的时间,所述第三时间是待进行CSI预测的时间位置。
- 根据权利要求3所述的方法,其中,所述第一时间间隔、第二时间间隔、第一时间、第二时间和第三时间中的至少一项的取值是第一时间粒度的整数倍值,所述第一时间粒度包括以下至少一项:时隙,毫秒,符号,半帧,帧,CSI测量周期,CSI反馈周期、信道状态信息参考信号CSI-RS周期。
- 根据权利要求3所述的方法,其中,所述第一时间间隔和第二时间间隔相等。
- 根据权利要求1所述的方法,其中,所述第一信息还包括以下至少一项:所述第一相似度;可预测性,所述可预测性表示所述第二设备能用第一时间间隔进行CSI预测,或者所述可预测性表示所述第二设备不能用所述第一时间间隔进行CSI预测;所述第二设备对所述第一时间间隔的评估。
- 根据权利要求1所述的方法,其中,所述第一预测参数包括以下至少一项:第三时间间隔,所述第三时间间隔是用于对比的所述第一信道测量结果和所述第二信道测量结果之间的时间间隔;第四时间间隔,所述第四时间间隔是待进行CSI预测的时间位置;第一时间差值,所述第一时间差值是用于调整所述第一时间间隔的时间差值;第二时间差值,所述第二时间差值是用于调整所述第二时间间隔的时间差值;第四时间,所述第四时间是指测量所述第一信道测量结果的时间;第五时间,所述第五时间是指测量所述第二信道测量结果的时间;第六时间,所述第六时间是待进行CSI预测的时间位置;第一CSI间隔,所述第一CSI间隔是用于预测的多个历史CSI之间的间隔;第一CSI个数,所述第一CSI个数是用于预测的多个历史CSI的个数;第一CSI窗口长度,所述第一CSI窗口长度是用于预测的多个历史CSI占的时域长度。
- 根据权利要求2所述的方法,其中,所述第一预测模型与所述第二预测模型相同或不同。
- 一种CSI预测处理方法,包括:第二设备获取第一信道测量结果和第二信道测量结果之间的第一相似度;所述第二设备根据所述第一相似度,确定第一预测模型和/或第一预测参数;所述第二设备向第一设备发送第一信息,所述第一信息包括:所述第一预测模型的模型ID和/或第一预测参数。
- 根据权利要求9所述的方法,其中,所述方法还包括:所述第二设备接收第一设备发送的第二信息,所述第二信息包括以下至少一项:预测指令、第二预测模型或第二预测模型的模型ID。
- 根据权利要求9所述的方法,其中,所述方法还包括:所述第二设备接收第一设备发送的第三信息,所述第三信息包括以下至少一项:第一时间间隔、第二时间间隔、第一时间、第二时间和第三时间;其中,所述第一时间间隔是用于对比的第一信道测量结果和第二信道测量结果之间的时间间隔,所述第二时间间隔是待进行CSI预测的时间位置,所述第一时间是指测量所述第一信道测量结果的时间,所述第二时间是指测量所述第二信道测量结果的时间,所述第三时间是待进行CSI预测的时间位置。
- 根据权利要求11所述的方法,其中,所述第一时间间隔、所述第二时间间隔、所述第一时间、所述第二时间和所述第三时间中的至少一项的取值是第一时间粒度的整数倍值,所述第一时间粒度包括以下至少一项:时隙,毫秒,符号,半帧,帧,CSI测 量周期,CSI反馈周期、信道状态信息参考信号CSI-RS周期。
- 根据权利要求11所述的方法,其中,所述第一时间间隔和第二时间间隔相等。
- 根据权利要求9所述的方法,其中,所述第一信息还包括以下至少一项:所述第一相似度;可预测性,所述可预测性表示所述第二设备能用第一时间间隔进行CSI预测,或者所述可预测性表示所述第二设备不能用所述第一时间间隔进行CSI预测;所述第二设备对所述第一时间间隔的评估。
- 根据权利要求9所述的方法,其中,所述第一预测参数包括以下至少一项:第三时间间隔,所述第三时间间隔是用于对比的所述第一信道测量结果和所述第二信道测量结果之间的时间间隔;第四时间间隔,所述第四时间间隔是待进行CSI预测的时间位置;第一时间差值,所述第一时间差值是用于调整所述第一时间间隔的时间差值;第二时间差值,所述第二时间差值是用于调整所述第二时间间隔的时间差值;第四时间,所述第四时间是指测量所述第一信道测量结果的时间;第五时间,所述第五时间是指测量所述第二信道测量结果的时间;第六时间,所述第六时间是待进行CSI预测的时间位置;第一CSI间隔,所述第一CSI间隔是用于预测的多个历史CSI之间的间隔;第一CSI个数,所述第一CSI个数是用于预测的多个历史CSI的个数;第一CSI窗口长度,所述第一CSI窗口长度是用于预测的多个历史CSI占的时域长度。
- 根据权利要求10所述的方法,其中,所述第一预测模型与所述第二预测模型相同或不同。
- 根据权利要求9所述的方法,其中,所述第二设备获取第一信道测量结果和第二信道测量结果之间的第一相似度,包括:所述第二设备根据预配置的信息、网络侧指示的信息、协议约定的信息、所述第一设备和第二设备协商的信息中的至少一项,确定所述第一信道测量结果和第二信道测量结果之间的第一相似度的获取方式;所述第二设备根据所述获取方式,获取所述第一相似度。
- 根据权利要求17所述的方法,其中,所述获取方式包括:通过第一神经网络,得到所述第一信道测量结果和第二信道测量结果之间的第一相似度,其中所述第一信道测量结果和第二信道测量结果为所述第一神经网络的输入信息,所述第一相似度与所述第一神经网络的输出信息相关。
- 根据权利要求18所述的方法,其中,所述第一神经网络的输出信息包括相关性类信息,所述相关性类信息的值越大表示所述第一信道测量结果和第二信道测量结果之间的相似度越高;或者,所述第一神经网络的输出信息包括差别类信息,所述差别类信息的值越低表示所述第一信道测量结果和第二信道测量结果之间的相似度越高。
- 根据权利要求17所述的方法,其中,所述获取方式包括:获取所述第一信道测量结果和第二信道测量结果之间的相关信息,所述相关信息包括以下至少一个域的相关信息:时域、频域、空域、时延域、多普勒域、波束域、角度域;根据所述相关信息,确定所述第一信道测量结果和第二信道测量结果之间的第一相似度。
- 根据权利要求10所述的方法,其中,所述第一预测模型与所述第二预测模型相同或不同。
- 一种CSI预测处理装置,包括:第一接收模块,用于接收第二设备发送的第一信息,所述第一信息包括:第一预测模型的模型标识ID和/或第一预测参数,所述第一预测模型和/或第一预测参数是所述第二设备根据第一信道测量结果和第二信道测量结果的第一相似度确定的。
- 一种CSI预测处理装置,包括:获取模块,用于获取第一信道测量结果和第二信道测量结果之间的第一相似度;确定模块,用于根据所述第一相似度,确定第一预测模型和/或第一预测参数;第三发送模块,用于向第一设备发送第一信息,所述第一信息包括:所述第一预测模型的模型ID和/或第一预测参数。
- 一种通信设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至21中任一项所述的方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至21中任一项所述的方法的步骤。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211216993.7 | 2022-09-30 | ||
| CN202211216993.7A CN117856942A (zh) | 2022-09-30 | 2022-09-30 | Csi预测处理方法、装置、通信设备及可读存储介质 |
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| WO2024067665A1 true WO2024067665A1 (zh) | 2024-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2023/121889 Ceased WO2024067665A1 (zh) | 2022-09-30 | 2023-09-27 | Csi预测处理方法、装置、通信设备及可读存储介质 |
Country Status (2)
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| CN (1) | CN117856942A (zh) |
| WO (1) | WO2024067665A1 (zh) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258259A1 (en) * | 2020-06-22 | 2021-12-30 | Qualcomm Incorporated | Determining a channel state for wireless communication |
| CN114402560A (zh) * | 2019-09-19 | 2022-04-26 | 高通股份有限公司 | 用于确定信道状态信息的系统和方法 |
| WO2022175084A1 (en) * | 2021-02-19 | 2022-08-25 | Nokia Technologies Oy | Machine learning based channel state information estimation and feedback configuration |
| CN115022896A (zh) * | 2021-03-05 | 2022-09-06 | 维沃移动通信有限公司 | 信息上报方法、装置、第一设备及第二设备 |
-
2022
- 2022-09-30 CN CN202211216993.7A patent/CN117856942A/zh active Pending
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2023
- 2023-09-27 WO PCT/CN2023/121889 patent/WO2024067665A1/zh not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114402560A (zh) * | 2019-09-19 | 2022-04-26 | 高通股份有限公司 | 用于确定信道状态信息的系统和方法 |
| WO2021258259A1 (en) * | 2020-06-22 | 2021-12-30 | Qualcomm Incorporated | Determining a channel state for wireless communication |
| WO2022175084A1 (en) * | 2021-02-19 | 2022-08-25 | Nokia Technologies Oy | Machine learning based channel state information estimation and feedback configuration |
| CN115022896A (zh) * | 2021-03-05 | 2022-09-06 | 维沃移动通信有限公司 | 信息上报方法、装置、第一设备及第二设备 |
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| CN117856942A (zh) | 2024-04-09 |
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