WO2024093771A1 - 参考信号确定方法、终端及网络侧设备 - Google Patents
参考信号确定方法、终端及网络侧设备 Download PDFInfo
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- WO2024093771A1 WO2024093771A1 PCT/CN2023/126672 CN2023126672W WO2024093771A1 WO 2024093771 A1 WO2024093771 A1 WO 2024093771A1 CN 2023126672 W CN2023126672 W CN 2023126672W WO 2024093771 A1 WO2024093771 A1 WO 2024093771A1
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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
- 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
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Definitions
- the present application belongs to the field of communication technology, and specifically relates to a reference signal determination method, a terminal, and a network side device.
- the terminal mainly performs channel prediction based on the channel state information reference signal (CSI-RS).
- CSI-RS channel state information reference signal
- the embodiments of the present application provide a reference signal determination method, a terminal, and a network-side device, which can solve the problem of poor transmission performance between communication devices.
- a reference signal determination method comprising:
- the terminal determines at least one of a first CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a reference signal determination method comprising:
- the network side device sends network signaling to the terminal, and the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a reference signal determination device including:
- a determination module is used for the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a reference signal determination device including:
- the first sending module is used to send network signaling to the terminal, where the network signaling is used by the terminal to determine the first channel measurement At least one of a reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a terminal which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the reference signal determination method on the terminal side as provided in an embodiment of the present application are implemented.
- a terminal comprising a processor and a communication interface, wherein the processor is used to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a network side device which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the reference signal determination method on the network side device side provided in an embodiment of the present application are implemented.
- a network side device comprising a processor and a communication interface, wherein the communication interface is used to send network signaling to a terminal, and the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- a reference signal determination system including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the reference signal determination method on the terminal side as provided in the embodiment of the present application, and the network side device can be used to execute the steps of the reference signal determination method on the network side device side as provided in the embodiment of the present application.
- 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 reference signal determination method on the terminal side as provided in the embodiment of the present application are implemented, or the steps of the reference signal determination method on the network side device side as provided in the embodiment of the present application are implemented.
- 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 a program or instruction to implement a reference signal determination method on the terminal side as provided in an embodiment of the present application, or to implement a reference signal determination method on the network side device side as provided in an embodiment of the present application.
- a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the reference signal determination method on the terminal side as provided in the embodiment of the present application, or the computer program/program product is executed by at least one processor to implement the steps of the reference signal determination method on the network side device side as provided in the embodiment of the present application.
- the terminal determines at least one of the first CSI-RS, the second CSI-RS and the third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- the CSI-RS transmitted between communication devices can support multiple uses, thereby improving the transmission performance between communication devices.
- FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
- FIG2 is a flow chart of a reference signal determination method provided in an embodiment of the present application.
- FIG3 is a flow chart of another reference signal determination method provided in an embodiment of the present application.
- FIG4 is a structural diagram of a reference signal determination device provided in an embodiment of the present application.
- FIG5 is a structural diagram of another reference signal determination device provided in an embodiment of the present application.
- FIG6 is a structural diagram of a communication device provided in an embodiment of the present application.
- FIG7 is a structural diagram of a terminal provided in an embodiment of the present application.
- FIG8 is a structural diagram of a network-side 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
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency Division Multiple Access
- NR new radio
- FIG1 is a block diagram of a wireless communication system applicable to the embodiment of the present application.
- the wireless communication system includes a terminal 11 and a network side device 12.
- the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palm computer, a netbook, an ultra-mobile personal computer (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 (PUE), smart home (home equipment with wireless communication function, such as refrigerator, TV, washing machine or furniture, etc.), game console, personal computer (PC), teller machine or self-service machine and other terminal side equipment, wearable devices include: smart watch, smart bracelet, smart headset, smart glasses, smart jewelry (smart bracelet, smart bracelet, smart ring, smart necklace, smart anklet, smart ankle
- the network side device 12 may include access network equipment or core network equipment, wherein the access network equipment may also be called wireless access network equipment, wireless access network (RAN), wireless access network function or wireless access network unit.
- the access network equipment may include a base station, a wireless local area network (WLAN) access point or a WiFi node, etc.
- WLAN wireless local area network
- the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmission reception point (TRP) or some other suitable term in the field.
- eNB evolved node B
- BTS basic service set
- ESS extended service set
- TRP transmission reception point
- 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 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 (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in
- FIG. 2 is a flow chart of a reference signal determination method provided in an embodiment of the present application. As shown in FIG. 2 , the method includes the following steps:
- Step 201 The terminal determines at least one of a first CSI-RS, a second CSI-RS, and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- the terminal determines the first CSI-RS by determining the first CSI-RS for channel prediction based on at least one of network-side signaling, default rules, and the like.
- the first CSI-RS may be one or more CSI-RSs, or one or more measurement opportunities of one CSI-RS.
- the CSI-RS in the present application may be a channel measurement CSI-RS (CSI-RS for channel measurement, CMR), or other CSI-RS, and the CSI-RS defined in the protocol is not limited to this.
- CMR channel measurement CSI-RS
- the terminal determines the second CSI-RS by determining the second CSI-RS for the terminal to train a prediction model based on at least one of network-side signaling, default rules, and the like.
- the second CSI-RS may be one or more CSI-RSs, or one or more measurement opportunities of one CSI-RS.
- the second CSI-RS being used for training the prediction model may be understood as the terminal training the prediction model based on the second CSI-RS.
- the above prediction model can be a prediction model for predicting channels, such as: an artificial intelligence (AI) network or an autoregressive (AR) network, or a prediction filter, or a prediction algorithm.
- AI artificial intelligence
- AR autoregressive
- the second CSI-RS used for training the prediction model may be that the second CSI-RS is used for training the AI network model, or the second CSI-RS is used for training the prediction filter, or the second CSI-RS is used for training the AR coefficient, or the second CSI-RS is used for the prediction algorithm.
- the terminal determines the third CSI-RS based on at least one of network-side signaling, default rules, etc. to determine the third CSI-RS for monitoring the channel prediction performance of the terminal.
- the third CSI-RS may be one or more CSI-RSs, or one or more measurement opportunities of one CSI-RS.
- the third CSI-RS is used to monitor the channel prediction performance of the terminal, which can be understood as monitoring or verifying the channel prediction performance of the terminal based on the channel prediction result of the third CSI-RS. For example, the channel obtained by the third CSI-RS is verified with the previously predicted channel result to monitor the channel prediction performance of the terminal.
- the first CSI-RS, the second CSI-RS and the third CSI-RS may be CSI-RS sent by the terminal and received by the network side device.
- the first CSI-RS, the second CSI-RS and the third CSI-RS may also be CSI-RS sent by other terminals and received by the terminal.
- the CSI-RS transmitted between communication devices can support multiple uses, thereby improving the transmission performance between communication devices.
- the method may further include the terminal predicting a channel at a future time based on the channel obtained by the first CSI-RS.
- the channel at a future time may be predicted based on the channel obtained by the first CSI-RS and a trained prediction model.
- the above method may further include at least one of the following:
- Training the prediction model based on the second CSI-RS for example: training prediction filter coefficients and training an AI network based on the second CSI-RS;
- the channel prediction performance of the terminal is monitored or verified based on the third CSI-RS, for example: a channel is acquired based on the third CSI-RS, and the acquired channel is compared with a previous prediction result to acquire the channel prediction performance of the terminal.
- the predicted performance can be fed back to the network side equipment to facilitate network optimization measurement configuration.
- the prediction model is trained based on the second CSI-RS, so that the parameters in the prediction model can be more accurate, thereby improving the prediction performance of the terminal.
- the prediction performance of the terminal can be monitored through the monitoring. In this way, when it is monitored that the prediction performance of the terminal decreases or is relatively poor, the prediction method is optimized, or the network side device optimizes the measurement configuration, thereby improving the prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the at least two items mentioned above are the same CMS, which means that the network sends a CSI-RS configuration, and at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are obtained based on the one configuration.
- the at least two items mentioned above are different CSI-RS, which means that the network sends multiple configurations, and different CSI-RS are CSI-RS obtained according to different configurations.
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are signals of the same CSI-RS at different measurement times, which can be understood as at least one of the following:
- the first CSI-RS and the second CSI-RS are signals of the same CSI-RS at different measurement times;
- the first CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times.
- the first CSI-RS may be a signal of one or more measurement opportunities in the signal
- the second CSI-RS may be a signal of one or more measurement opportunities in the signal
- the third CSI-RS may be a signal of one or more measurement opportunities in the signal.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS are signals of the same CSI-RS at different measurement times
- channel prediction, training of prediction models, and/or monitoring of terminal prediction performance can be achieved through the same signal, so that other signals do not need to be introduced, thereby reducing complexity.
- training of prediction models, channel prediction, and monitoring of terminal prediction performance can be completed based on multiple measurement times of one CSI-RS.
- That at least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs may be understood as at least one of the following:
- the first CSI-RS and the second CSI-RS are the same CSI-RS or different CSI-RSs;
- the first CSI-RS and the third CSI-RS are the same CSI-RS or different CSI-RSs;
- the second CSI-RS and the third CSI-RS are the same CSI-RS or different CSI-RSs;
- the first CSI-RS, the second CSI-RS and the third CSI-RS are different CSI-RSs.
- the configuration of the network can be more flexible.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is a non-periodic CSI-RS configured or activated by the network.
- the same CSI-RS mentioned above is a periodic CSI-RS configured or activated by the network, and at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are different measurement times of the periodic CSI-RS.
- the first CSI-RS and the second CSI-RS are different measurement times of the same periodic CSI-RS
- the first CSI-RS and the third CSI-RS are different measurement times of the same periodic CSI-RS.
- the same CSI-RS mentioned above is a semi-persistent CSI-RS configured or activated by the network, and at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are different measurement times of the semi-persistent CSI-RS.
- the first CSI-RS and the second CSI-RS are different measurement times of the same semi-persistent CSI-RS
- the first CSI-RS and the third CSI-RS are different measurement times of the same semi-persistent CSI-RS.
- the same CSI-RS mentioned above is a non-periodic CSI-RS that is repeatedly transmitted and configured by the network. It can be that at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are different measurement timings of the repeatedly transmitted non-periodic CSI-RS, for example: the first CSI-RS and the second CSI-RS are different measurement timings of the repeatedly transmitted non-periodic CSI-RS, and the first CSI-RS and the third CSI-RS are different measurement timings of the same repeatedly transmitted non-periodic CSI-RS.
- the second CSI-RS and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, or at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RS sets.
- the CSI-RS belonging to the CSI-RS set can be understood as the CSI-RS being associated with or configured in the CSI-RS set.
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, which can be understood as at least one of the following:
- the first CSI-RS and the second CSI-RS are associated with a CSI-RS set
- the first CSI-RS and the third CSI-RS are associated with one CSI-RS set;
- the second CSI-RS and the third CSI-RS are associated with one CSI-RS set;
- the first CSI-RS, the second CSI-RS, and the third CSI-RS are associated with one CSI-RS set.
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RS sets to be understood as at least one of the following:
- the first CSI-RS and the second CSI-RS are associated with two CSI-RS sets;
- the first CSI-RS and the third CSI-RS are associated with two CSI-RS sets;
- the second CSI-RS and the third CSI-RS are associated with two CSI-RS sets;
- the first CSI-RS, the second CSI-RS and the third CSI-RS are associated with three CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indicator (TCI) information or quasi co-location information;
- TCI transmission configuration indicator
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the same CSI-RS set being a periodic, semi-persistent or aperiodic CSI-RS set can achieve association of at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS to the same periodic, semi-persistent or aperiodic CSI-RS set.
- the above second CSI-RS and the above first CSI-RS or the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, then the above second CSI-RS may have a smaller frequency domain density, which is utilized for the training of the prediction model.
- the above second CSI-RS and the above first CSI-RS or the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, the above second CSI-RS may have a smaller bandwidth, which is utilized for training the prediction model.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- Different CSI-RS sets have different port configurations.
- prediction model training is associated with one CSI-RS set, and predicted channel and monitoring prediction performance are associated with another CSI-RS set; or, prediction model training, channel prediction, and monitoring prediction performance are associated with different CSI-RS sets respectively; or, prediction model training and channel prediction are associated with one CSI-RS set, and monitoring prediction performance is associated with another CSI-RS set.
- the different CSI-RS sets having different time domain characteristics may be that different CSI-RS sets have different periodic, non-periodic or semi-persistent characteristics.
- the above-mentioned different CSI-RS sets have different frequency domain densities. If the above-mentioned second CSI-RS is associated with the above-mentioned first CSI-RS or the third CSI-RS to different CSI-RS sets, the CSI-RS set associated with the above-mentioned second CSI-RS has a smaller frequency domain density, which is utilized for the training of the prediction model.
- the above-mentioned different CSI-RS sets have different bandwidths. If the above-mentioned second CSI-RS is associated with the above-mentioned first CSI-RS or the third CSI-RS to different CSI-RS sets, the CSI-RS set associated with the above-mentioned second CSI-RS has a smaller bandwidth, which is utilized for the training of the prediction model.
- the first CSI-RS, the second CSI-RS and the third CSI-RS may have the same port configuration.
- the time domain characteristic of a CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is aperiodic:
- the time domain offset of each CSI-RS in the CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is determined by at least one of the following:
- the above-mentioned network signaling may be high-level signaling
- the above-mentioned default rule may be a pre-configured rule or a protocol agreement
- the above-mentioned time domain offset may be a time slot offset, a symbol offset or a sub-time slot offset, etc.
- the above-mentioned time domain offset may be an offset relative to the time domain position of the triggering signaling that triggers the above-mentioned CSI-RS set, such as relative to the time domain position of the downlink control information (Downlink Control Information, DCI) that triggers the above-mentioned CSI-RS set, or the above-mentioned time domain offset may be an offset relative to a specific reference time domain position, and there is no specific limitation on this.
- DCI Downlink Control Information
- the network side indicates a time slot offset value n for the above CSI-RS set through network signaling.
- the time slot offset value associated with the first CSI-RS in the CSI-RS set is n
- the time slot offset value of the second CSI-RS is n+m
- the time slot offset value of the third CSI-RS is n+2*m
- the value of m can be a default rule, such as 1.
- the value of m is indicated by the network.
- the network side indicates a time slot offset value n for the above CSI-RS set through network signaling
- the time slot offset value associated with the CSI-RS with the smallest CSI-RS ID in the CSI-RS set is n
- the time slot offset value of the CSI-RS with the second smallest CSI-RS ID is n+m
- the time slot offset value of the CSI-RS with the third smallest CSI-RS ID is n+2*m
- the value of m can be a default rule, such as 1, or the value of m can be indicated by the network.
- the method further includes:
- the terminal sends feedback information to the network side device, where the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the above-mentioned demand for terminal training prediction model may be the demand for terminal training AI network model, or the demand for terminal training prediction filter, or the demand for terminal training AR coefficient, or the demand for training prediction algorithm, etc.
- the above requirements may be measurement opportunity quantity requirements, time domain density requirements, and CSI-RS quantity requirements.
- the requirements for the terminal training prediction model may include at least one of the following:
- the requirement of the terminal to predict the channel may include at least one of the following:
- the terminal feeds back at least one of the number of measurement opportunities, the number of measurement time slots, the number of measurement symbols, and the time domain density required for the training process and/or the prediction process.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the above CSI-RS configuration may be at least one of period configuration, port configuration, and frequency domain density configuration.
- the terminal may feed back the number of measurement opportunities, the number of measurement time slots or the number of measurement symbols required for the training process and/or the prediction process under multiple cycle configurations, multiple port configurations, and multiple frequency domain density configurations.
- the terminal may provide feedback on at least one of the number of measurement opportunities, number of measurement time slots, number of measurement symbols, time domain density, frequency domain density, and frequency domain bandwidth required for the training process and/or prediction process under multiple different time domain channel characteristics.
- the above requirements or quantities are minimum requirements or minimum quantities.
- the network side device may obtain the terminal's requirements for training and/or prediction based on the time domain channel characteristics fed back by the terminal.
- the terminal may not feed back or update the corresponding predicted channel information, such as CSI.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the minimum requirements for the above-mentioned terminal training prediction model can be the minimum number of measurement opportunities required for the terminal training prediction model, the minimum number of time domain resources required, the minimum time domain density required, and the minimum number of CSI-RS required. That is, the prediction model training can be completed by meeting this minimum requirement, but the network can be configured with more configurations than the minimum requirement.
- the minimum requirements for the above-mentioned terminal to predict the channel may be the minimum number of measurement opportunities required for the terminal to train the predicted channel, the minimum number of time domain resources required, the minimum time domain density required, and the minimum number of CSI-RS required. That is, channel prediction can be completed by meeting this minimum requirement, but the network may be configured with more configurations than the minimum requirement.
- the above minimum requirements can save resource configuration.
- the network side device can configure the above minimum requirements for the terminal.
- resources are loose, more resources than the minimum requirements can be configured so that the terminal can better complete channel prediction, prediction model training and prediction performance monitoring.
- the requirements for the terminal to train the prediction model may include at least one of the following:
- the terminal's requirement for predicting the channel may include at least one of the following:
- the requirement for the terminal to train a prediction model may include at least one of the following:
- the terminal trains a minimum requirement for the prediction model under at least one CSI-RS configuration
- the requirements of the terminal for predicting the channel may include:
- the terminal predicts a minimum requirement of a channel
- the terminal predicts a minimum requirement of the channel.
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information;
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information.
- the fact that the resources used for training the prediction model do not meet the requirements of the terminal for training the prediction model may be that at least one of the number of measurement opportunities, the number of time domain resources, the time domain density, and the number of CSI-RSs does not meet the corresponding requirements.
- the resource of the prediction channel configured by the network may be in a training period when the terminal trains the prediction model, and the resource of the prediction channel configured by the network may overlap with the training period when the terminal trains the prediction model.
- the first CSI-RS and the second CSI-RS may be the same CSI-RS.
- the terminal may not feedback channel information, such as not feedback CSI, or feedback channel information that is not predicted based on the prediction model, such as feedback channel information predicted based on other methods.
- the channel information may not be fed back or the corresponding predicted channel information may not be updated.
- the channel information reporting performance of the terminal can be improved.
- the terminal when training and prediction are completed through one CSI-RS, if the number of training opportunities does not meet the terminal's requirement to complete training, the terminal can only feedback non-predicted channel state information, specifically feedback channel state information that is not predicted based on the prediction model. That is, during the training process, the network can configure non-predicted channel state information feedback; or, if the predicted channel state information feedback configured by the network is during training, the terminal can feedback non-predicted channel state information or not feedback or update.
- the terminal determines the same CSI-RS by at least one of the following:
- prediction model training and channel prediction can be completed through one CSI-RS, which can reduce the signal overhead of prediction model training and channel prediction.
- the above-mentioned network signaling indicates that the above-mentioned CSI-RS is used for both prediction model training and channel prediction, or the above-mentioned default rule indicates that the above-mentioned CSI-RS is used for both prediction model training and channel prediction.
- the terminal defaults to using the CSI-RS for both prediction model training and channel prediction.
- the terminal defaults to using the CSI-RS for both prediction model training and channel prediction.
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the above N may be the number of time domain units indicated by the network through codebook configuration signaling, or may be indicated by other signaling or defined by a protocol.
- the above-mentioned first CSI-RS and the second CSI-RS belong to different CSI-RS in the same CSI-RS set.
- Channel prediction and prediction model training are completed through multiple CSI-RSs, and these multiple CSI-RSs are associated or configured in a CSI-RS set.
- the above-mentioned N CSI-RS may be the N CSI-RS determined by the number of time domain units N indicated by the above-mentioned codebook configuration signaling, and the above-mentioned remaining CSI-RS as the second CSI-RS may be the CSI-RS in the above-mentioned CSI-RS set except the above-mentioned N CSI-RS as the above-mentioned second CSI-RS.
- the time domain offset of the N CSI-RSs may be greater than the time domain offset of the remaining CSI-RSs.
- the N CSI-RSs with larger time domain offsets in the CSI-RS set may be used for channel prediction, and the remaining CSI-RSs may be used for prediction model training, so that prediction model training may be performed based on CSI-RSs with earlier time domain positions, thereby predicting channel information based on the trained prediction model to improve the prediction accuracy of channel information.
- the two CSI-RS subsets have at least one of the following characteristics:
- the terminal does not expect that the time domain offset of the CSI-RS subset including the second CSI-RS is greater than the time domain offset of the CSI-RS subset of the first CSI-RS;
- the two CSI-RS subsets are divided by at least one of the following: network signaling and time domain offset.
- the above-mentioned terminal does not expect the time domain offset of the CSI-RS subset including the second CSI-RS to be greater than the time domain offset of the CSI-RS subset including the first CSI-RS. It can be that the terminal does not expect the time domain offset of the CSI-RS used for prediction model training to be greater than the time domain offset of the CSI-RS used for channel prediction. If this happens, the terminal does not perform the channel prediction process, that is, does not feed back the corresponding channel information, which can avoid the terminal from feeding back inaccurate channel information.
- the two CSI-RS subsets are divided by at least one of network signaling and time domain offset.
- the network signaling explicitly indicates the CSI-RS subset used for prediction model training and the CSI-RS subset used for channel prediction, or the first subset is used for prediction model training and the second subset is used for channel prediction by default.
- the network signaling implicitly indicates the CSI-RS subset used for prediction model training and the CSI-RS subset used for channel prediction.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the CSI-RS in the CSI-RS subset with a smaller time domain offset is the second CSI-RS, and the CSI-RS in the CSI-RS subset with a larger time domain offset is the first CSI-RS.
- the terminal obtains a reference time slot, and a CSI-RS that is greater than or greater than or equal to the reference time slot is the first CSI-RS, and a CSI-RS that is less than or less than or equal to the reference time slot is the second CSI-RS.
- the above-mentioned smaller time domain offset means that the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset is smaller, or the CSI-RS subset with smaller time domain offset means the subset to which the CSI-RS with the smallest time domain offset in the CSI-RS set belongs;
- the larger time domain offset means that the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset is larger, or the CSI-RS subset with a larger time domain offset refers to the subset to which the CSI-RS with the largest time domain offset in the CSI-RS set belongs.
- the final The terminal performs prediction model training based on the earlier CSI-RS in the above CSI-RS set, so as to predict the channel information based on the trained prediction model, so as to improve the prediction accuracy of the channel information.
- the terminal determines a first CSI-RS set including the first CSI-RS and a second CSI-RS set including the second CSI-RS by at least one of the following:
- the above network signaling may explicitly indicate a CSI-RS for prediction model training and a CSI-RS set for channel prediction.
- the terminal does not expect the time domain offset of the CSI-RS used for prediction model training to be greater than the time domain offset of the CSI-RS used for channel prediction. If this occurs, the terminal does not perform the channel prediction process and does not feed back the corresponding channel information.
- the above-mentioned determination of the first CSI-RS set and the second CSI-RS set by time domain offset may be that the terminal defaults to the CSI-RS set associated with the CSI-RS with a smaller time domain offset as the above-mentioned second CSI-RS set, that is, the terminal defaults to the CSI-RS set associated with the CSI-RS with a smaller time domain offset for prediction model training, and the CSI-RS set associated with the CSI-RS with a larger time domain offset as the above-mentioned first CSI-RS set, that is, the CSI-RS set associated with the CSI-RS with a larger time domain offset is used for channel prediction.
- the above-mentioned determination of the first CSI-RS set and the second CSI-RS set by time domain offset may be that the terminal distinguishes the first CSI-RS set and the second CSI-RS set by a CSI-RS set identifier, for example: the CSI-RS set with a smaller set ID is the above-mentioned second CSI-RS set, that is, the CSI-RS set with the set identifier is used for prediction model training, and the CSI-RS set with a larger set ID is the above-mentioned first CSI-RS set, that is, the CSI-RS set with the set identifier is used for channel prediction.
- the CSI-RS set with a smaller set ID is the above-mentioned second CSI-RS set, that is, the CSI-RS set with the set identifier is used for prediction model training
- the CSI-RS set with a larger set ID is the above-mentioned first CSI-RS set, that is, the CSI-RS set with the
- the above-mentioned determination of the first CSI-RS set and the second CSI-RS set by time domain characteristics may be that the terminal distinguishes the first CSI-RS set and the second CSI-RS set by the time domain characteristics of the CSI-RS set, for example: the set where the periodic or semi-continuous CSI-RS is located is used for prediction model training, that is, the above-mentioned second CSI-RS set, and the set where the non-periodic CSI-RS is located is used for channel prediction, that is, the above-mentioned first CSI-RS set.
- the first CSI-RS set and the second CSI-RS set are two associated CSI-RS sets, for example, the network side indicates that the terminal has two associated CSI-RS sets for prediction model training and channel prediction respectively.
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the second CSI-RS set is a CSI-RS set corresponding to a second CSI report configuration
- the first CSI report configuration corresponds to multiple CSI-RS sets
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the second CSI-RS set
- the second CSI report configuration corresponds to multiple CSI-RS sets
- the second CSI-RS set is a CSI-RS set having the same TCI or quasi co-location (QCL) as the first CSI-RS set among the multiple CSI-RS sets
- QCL quasi co-location
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the above CSI reporting configuration may be a CSI reporting configuration configured or activated by the network side.
- the CSI-RS set corresponding to the CSI reporting configuration may be a CSI-RS set associated with or configured by the CSI reporting configuration.
- the network configures or activates a CSI report configuration
- the CSI report configuration is associated with two CSI-RS sets for prediction model training and channel prediction, namely, the second CSI-RS set and the first CSI-RS set.
- the above-mentioned first CSI report configuration and the second CSI report configuration can be two CSI pre-configurations with an associated relationship, for example: the network side configures or activates two CSI report configurations, and indicates through signaling that the two CSI report configurations have an associated relationship, and each CI report configuration is associated with or configured with a CSI-RS set, then the two CSI-RS sets associated with the two report configurations are used for prediction model training and channel prediction, namely the above-mentioned second CSI-RS set and the first CSI-RS set.
- the above-mentioned CSI-RS set with the same TCI may be that the CSI-RS in the two CSI-RS sets are associated with the same TCI.
- the network configures or activates two CSI report configurations, and indicates through signaling that the two CSI report configurations have an associated relationship, wherein one CSI report configuration (the first CSI report configuration or the second CSI report configuration) is associated with multiple CSI-RS sets, and the other report configuration (the second CSI report configuration or the first CSI report configuration) is associated with one CSI-RS set, then the terminal considers that among the multiple CSI-RS sets associated with the first CSI report configuration, the CSI-RS set associated with the second CSI report configuration has the same TCI as the CSI-RS set, which has an associated relationship with the CSI-RS set associated with the second CSI report configuration, and thus determines the above-mentioned first CRM set and the second CSI-RS set.
- the CSI-RS sets with the same QCL may be that the CSI-RSs in the two CSI-RS sets are associated with the same QCL.
- the above-mentioned first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL.
- the two CSI-RS sets with the same TCI or QCL are used for prediction model training and channel prediction, respectively.
- the CSI-RS used for prediction model training and channel prediction it is possible to determine the CSI-RS used for prediction model training and channel prediction based on the CSI report configuration, and it is also possible to use the CSI-RS with the same TCI or QCL as the CSI-RS for prediction model training and channel prediction. In this way, it is possible to use the CSI-RS with the same TCI and QCL for prediction model training and channel prediction, thereby improving the accuracy of channel prediction.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the above-mentioned third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-continuous CSI-RS. It can be that the third CSI-RS and the first CSI-RS are the same CSI-RS, and the CSI-RS is a periodic or semi-continuous CSI-RS, that is, the monitoring is completed through a periodic or semi-continuous CSI-RS that is the same as the prediction.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS;
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS;
- the relationship between the first CSI-RS, the second CSI-RS and the third CSI-RS can be an indication on the network side, for example: the network side indicates to the terminal that a certain CSI-RS is used for monitoring in addition to prediction model training and/or channel prediction, or, the relationship between the first CSI-RS, the second CSI-RS and the third CSI-RS can also be determined by a default rule, for example: when configuring a CSI-RS, the terminal defaults to that the CSI-RS is used for prediction model training, channel prediction, and monitoring.
- the configuration overhead of the CSI-RS can be saved.
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the first CSI-RS and the third CSI-RS may belong to different CSI-RSs in the same CSI-RS set, including:
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, and the second CSI-RS does not belong to the CSI-RS set; or
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set.
- the same CSI-RS set including two CSI-RS subsets may be that the same CSI-RS set includes at least two CSI-RS subsets, for example, when the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, the CSI-RS set includes three CSI-RS subsets, and the three CSI-RS subsets include the first CSI-RS, the second CSI-RS and the third CSI-RS, respectively.
- the first CSI-RS and the third CSI-RS belong to the same CSI-RS set, which can save CSI-RS set configuration overhead.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position;
- the two CSI-RS subsets are divided by at least one of the following: network signaling, default rule, and time domain offset.
- the time domain position of the CSI-RS in the CSI-RS subset associated with the third CSI-RS is later than or equal to the CSI reference time domain position or the CSI report time domain position.
- the time slot associated with the time domain position of the CSI-RS in the CSI-RS subset associated with the third CSI-RS is greater than or greater than or equal to the time slot associated with the CSI reference time domain position or the time slot associated with the CSI report time domain position, that is, the terminal does not expect the time domain position of the CSI-RS in the CSI-RS subset including the third CSI-RS to be earlier than the CSI reference time domain position or the CSI report time domain position, or the terminal does not expect the third CSI-RS for monitoring to appear.
- the time slot of CSI-RS is smaller than the CSI reference time slot or the CSI report time slot. If this occurs, the terminal does not perform the monitoring process.
- the above network signaling is used to divide the above CSI-RS set into multiple CSI-RS subsets, and explicitly indicate the CSI-RS subset used for monitoring, and may also indicate the CSI-RS subset used for channel prediction.
- the above default rule can be that the CSI-RS subset is used for monitoring by default, for example: when the CSI-RS set has two subsets, the first one is used for channel prediction and the second one is used for monitoring; when the CSI-RS set has three subsets, the first one is used for prediction model training, the second one is used for channel prediction, and the third one is used for monitoring.
- the above-mentioned time domain offset can be, by determining the above-mentioned two CSI-RS subsets through the position of the time domain offset, for example: when the time slot associated with the CSI-RS is greater than the CSI reference time slot or the CSI report time slot, the CSI-RS is determined as the third CSI-RS for monitoring the prediction performance, and then the CSI-RS subset to which the third CSI-RS belongs is determined, and the remaining CSI-RS is determined as the first CSI-RS for channel prediction, and then the CSI-RS subset to which the first CSI-RS belongs is determined.
- the terminal determines a first CSI-RS set including the first CSI-RS and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the first CSI-RS and the third CSI-RS belong to different CSI-RS sets and may include the following:
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RS sets respectively;
- the first CSI-RS and the third CSI-RS belong to different CSI-RS sets, but the second CSI-RS set to which the second CSI-RS belongs is the same as the first CSI-RS set or the second CSI-RS set, that is, the first CSI-RS, the second CSI-RS and the third CSI-RS are associated with two CSI-RS sets.
- the above network signaling may explicitly indicate that one of the multiple CSI-RS sets contains a CSI-RS for monitoring predicted performance, or explicitly indicate a first CSI-RS set including a first CSI-RS and a third CSI-RS set including a third CSI-RS.
- the above default rule determination may be that there is a CSI-RS for monitoring the prediction performance in the CSI-RS set with a larger default time domain offset, or there is a CSI-RS for monitoring the prediction performance in the CSI-RS set with a smaller default set identifier.
- the above-mentioned time domain offset can be determined by determining the CSI-RS set with a larger time domain offset as the CSI-RS set to which the above-mentioned third CSI-RS belongs. For example: in a CSI-RS set, if some or all of the CSI-RS-associated time slots are larger than the CSI reference time slot or the CSI report time slot, the terminal considers that there are CSI-RS for monitoring in the CSI-RS set.
- the above set identifier determination may be that the terminal distinguishes by the CSI-RS set identifier, for example: a CSI-RS set with a smaller set ID contains a CSI-RS for monitoring, or a CSI-RS set with a larger set ID contains a CSI-RS for monitoring.
- the above-mentioned time domain characteristic determination can be that the terminal distinguishes by the time domain characteristics of the CSI-RS set, for example: there is a CSI-RS for monitoring in the set where the periodic or semi-continuous CSI-RS is located, or there is a CSI-RS for monitoring in the set where the non-periodic CSI-RS is located.
- the CSI-RS set is a periodic or semi-persistent CSI-RS set
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the CSI-RS set including the CSI-RS for monitoring also includes the CSI-RS for channel prediction, or the CSI-RS for monitoring and the CSI-RS for channel prediction are the same CSI-RS, and the CSI-RS is a periodic or semi-continuous CSI-RS, which can save CSI-RS configuration overhead.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with an associated relationship.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to a third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the association relationship between the first CSI-RS set and the third CSI-RS set can be found in the corresponding description of the association relationship between the first CSI-RS set and the second CSI-RS set in the above-mentioned embodiment, which will not be repeated here.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS, a second CSI-RS set including the second CSI-RS, and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the above network signaling may explicitly indicate at least one of a first CSI-RS set including a first CSI-RS, a second CSI-RS set including a second CSI-RS, and a third CSI-RS set including a third CSI-RS.
- the above default rule determination may be that the CSI-RS set with a larger default time domain offset contains a CSI-RS for monitoring prediction performance, and the CSI-RS set with the smallest default time domain offset contains a CSI-RS for prediction model training.
- the above-mentioned time domain offset determination can be that the CSI-RS set with a larger time domain offset is determined as the CSI-RS set to which the above-mentioned third CSI-RS belongs, and the CSI-RS used for prediction model training exists in the CSI-RS set with a smaller or smallest time domain offset by default.
- the above set identification can be determined by the terminal distinguishing by the CSI-RS set identification, for example: the set ID is smaller There is a CSI-RS for monitoring in the CSI-RS set, or the set ID is smaller or there is a CSI-RS for prediction model training in the minimum CSI-RS set.
- the above-mentioned time domain characteristic determination can be that the terminal distinguishes the CSI-RS set through the time domain characteristics of the CSI-RS set, for example: the set where the periodic or semi-continuous CSI-RS is located contains CSI-RS used for monitoring, or the set where the non-periodic CSI-RS is located contains CSI-RS used for prediction model training.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets with the same TCI among multiple CSI-RS sets configured or activated by the network.
- a network-side configuration or activation of a CSI report configuration may be implemented, and the CSI report configuration is associated with three CSI-RS sets for prediction model training, channel prediction, and monitoring, respectively, thereby saving CSI report configuration overhead.
- the terminal can perform prediction model training, channel prediction and monitoring based on the CSI-RS with the same TCI or QCL to improve the prediction performance of the terminal.
- the terminal predicts the CSI based on multiple aperiodic CSI-RSs:
- the time domain offset of the uplink channel is an offset relative to the time domain position corresponding to the last CSI-RS of the multiple non-periodic CSI-RSs, and the uplink channel is an uplink channel used to carry the CSI;
- the terminal determines that the sending time domain resource of the target non-periodic CSI-RS is the first valid downlink time domain resource before or after the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network; wherein the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network is an uplink time domain resource, or the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network collides with other signals or channels (other signals/channel).
- the last CSI-RS mentioned above indicates the CSI-RS with the largest associated time slot among multiple non-periodic CSI-RSs.
- the time domain resources corresponding to the target aperiodic CSI-RS may collide with other signals or channels in that the time domain resources corresponding to the target aperiodic CSI-RS overlap with the resources of the other signals or channels.
- the network side instructs the terminal to obtain CSI using multiple non-periodic CSI-RS
- the network side instructs or the terminal defaults that the time slot offset of the uplink channel carrying the CSI is the time slot offset of the time slot associated with the last CSI-RS of the multiple non-periodic CSI-RS.
- the network side indicates a time slot offset Y associated with a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) through DCI
- PUSCH Physical Uplink Shared Channel
- the feedback time slot of the CSI report is n+Y, where n corresponds to the time slot associated with the CSI-RS with the largest associated time slot among the multiple non-periodic CSI-RS.
- the terminal can better report the CSI, thereby improving the CSI reporting performance of the terminal.
- the above-mentioned downlink time domain resource may be a downlink symbol, or a downlink sub-time slot, etc.
- the time domain resource corresponding to the above-mentioned target aperiodic CSI-RS may be a symbol or a sub-time slot associated with the target aperiodic CSI-RS, etc.
- the network side instructs the terminal to obtain CSI using multiple aperiodic CSI-RSs. If the symbol associated with one of the aperiodic CSI-RSs indicated by the network side is an uplink symbol, the terminal may assume that the actual transmission symbol of the CSI-RS is the first valid downlink symbol before or after the symbol indicated by the network.
- the first valid downlink time domain resource before or after the time domain resource corresponding to the target aperiodic CSI-RS may include:
- the first downlink time domain resource that satisfies the CSI-RS pattern mapping before or after the time domain resource corresponding to the target aperiodic CSI-RS;
- the first valid downlink time domain resource that is before or after the time domain resource corresponding to the target aperiodic CSI-RS and does not collide with the physical channel or signal.
- the above-mentioned CSI-RS pattern is a pattern associated with the above-mentioned target non-periodic CSI-RS.
- the first downlink time domain resource satisfying the CSI-RS pattern mapping may be the first downlink symbol satisfying the CSI-RS pattern mapping.
- the above-mentioned physical channels may be physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), physical downlink control channel (Physical Downlink Control Channel, PDCCH), physical broadcast channel (physical broadcast channel, PBCH), etc.
- PUSCH Physical Uplink Shared Channel
- PDSCH Physical Downlink Shared Channel
- PDCCH Physical Downlink Control Channel
- PBCH physical broadcast channel
- the above signal may be other CSI-RS or other signals.
- the above-mentioned non-collision with physical channels or signals may be downlink time domain resources that do not have time domain collision with other physical channels or signals. For example, if the first valid downlink symbol of the above-mentioned target non-periodic CSI-RS has a time domain collision with other physical channels or signals, then the other physical channels or signals search for their valid downlink symbols according to the same rules to avoid time domain collision between the target non-periodic CSI-RS and other CSI-RS.
- the first valid downlink time domain resource may be a downlink symbol or time slot across time slots.
- the rule for determining a valid symbol is as follows: Assuming that the sth symbol on a configured time slot cannot send an aperiodic channel state information reference signal (aperiodic CSI-RS, AP-CSI-RS), then the valid symbol is found in the range [s-j ⁇ s+j], the closest valid symbol to s, such as a downlink symbol (DL symbol) that can send CSI-RS.
- a further search rule may be to search forward and backward at the same time, for example, first search for s-1 and s+1, and if not, continue to search for s-2, s+2, and so on. If at some point, both the front and back symbols are found to meet the requirements, the front symbol or the back symbol is assumed to be a valid symbol. Further restrictions, the valid symbol and the sth symbol must be in the same time slot.
- the terminal since the terminal determines the actual sending time domain resource of the target aperiodic CSI-RS, the terminal can avoid receiving the target aperiodic CSI-RS, thereby improving the performance of the terminal in receiving CSI-RS.
- the terminal feeds back the first time domain position of the predicted channel information to any
- the time interval of the CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the terminal sends first indication information to the network side device, where the first indication information is used to indicate that: the time interval from the start position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs; or
- the terminal receives second indication information sent by a network side device, where the second indication information is used to indicate that a time interval from a starting position of a prediction window associated with channel information to any CSI-RS is associated with a time interval between multiple CSI-RSs.
- the first time domain position of the channel information may be the starting time domain position of the channel information.
- the prediction window associated with the above-mentioned channel information can be a channel state information reporting (CSI reporting) window or a prediction window associated with a precoding matrix.
- CSI reporting channel state information reporting
- the association relationship between the time interval from the starting position of the prediction window to any CSI-RS and the time intervals between multiple CSI-RSs may be configured by the network side, defined by the protocol, or determined by the terminal.
- the above time interval may be a time slot interval or a symbol interval.
- the time slot interval from the starting slot of the CSI reporting window to any CSI-RS must be an integer multiple of the interval between two adjacent AP CSI-RS resources.
- the method further includes:
- the terminal receives third indication information sent by the network side device, where the third indication information is used to indicate at least one of the following:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the third indication information may be DCI or other downlink information.
- the above-mentioned first non-periodic reference signal resource and the second non-periodic reference signal resource can be AP-CSI Resources, and can include one or more reference signal resources, and CSI-RS can be transmitted on each reference signal resource.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the above-mentioned time domain resources may be time slots or sub-time slots.
- the value of at least one of the above K1, K2, M1 and M2 may be determined based on the capabilities and/or feedback requirements of the terminal. In this way, at least one of the first non-periodic reference signal resource and the second non-periodic reference resource can be matched with the terminal, thereby improving the reception performance of the terminal receiving the CSI-RS signal.
- the value of at least one of the above K1, K2, M1 and M2 may also be defined by the protocol or configured on the network side. For example: the terminal reports the capability, and the network side determines the value of at least one of the above K1, K2, M1 and M2 based on the capability reported by the terminal.
- M1 and M2 may be the same (or the same by default), so there is no need to indicate M1 and M2 separately. In some embodiments, M1 and M2 may also be different.
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal. In this way, since the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal, the reception performance of the terminal receiving the CSI-RS signal can be improved. In some implementations, the minimum frequency domain bandwidth of the first non-periodic reference signal resource can also be defined by the protocol or configured on the network side.
- the reporting config associated with the first non-periodic reference signal resource may be None.
- the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and an interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold.
- the preset threshold may be determined based on a terminal capability report or a protocol agreement.
- the terminal since the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and the interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold, the terminal performs channel prediction based on the trained prediction model, thereby improving the accuracy of channel prediction.
- the first non-periodic reference signal resource and the second non-periodic reference signal resource are associated with each other.
- the preset threshold may be a value fed back by the terminal, or may be obtained based on information fed back by the terminal.
- the above association relationship may be configured on the network side or agreed upon in a protocol.
- the first aperiodic reference signal resource is associated with the second aperiodic reference signal resource, or the second aperiodic reference signal resource is associated with the first aperiodic reference signal resource through network configuration.
- first aperiodic reference signal resource and the second aperiodic reference signal resource are associated with each other, one aperiodic reference signal resource can be used to determine another aperiodic reference signal resource, thereby saving configuration overhead.
- the terminal determines at least one of the first CSI-RS, the second CSI-RS and the third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- the CSI-RS transmitted between communication devices can support multiple uses, thereby improving the transmission performance between communication devices.
- the embodiments of the present application can achieve at least one of the following:
- a CSI-RS for CSI prediction may include at least one of the following three purposes: prediction model training, channel prediction, and monitoring prediction performance;
- the network side indicates to the terminal that the CSI-RS is used for both prediction model training and channel prediction (or can be used to monitor channel prediction performance);
- the terminal distinguishes the functions of multiple CSI-RSs through high-layer signaling or default rules;
- the network side indicates the two CSI-RS sets with the associated relationship through signaling
- the terminal distinguishes the functions of the CSI-RS sets through high-level signaling or default rules.
- the functions of CSI-RS are divided into prediction model training, channel prediction and monitoring channel prediction performance, and an association relationship is established for CSI-RS with multiple functions (for example, CSI-RS), so that the terminal and network side equipment can unify the understanding of multiple CSI-RS (for example, CSI-RS) used for prediction, and by introducing CSI-RS (for example, CSI-RS) used for prediction model training and monitoring channel prediction performance, the terminal prediction performance is effectively improved.
- CSI-RS for example, CSI-RS
- FIG. 3 is a flowchart of another reference signal determination method provided in an embodiment of the present application. As shown in FIG. 3 , the method includes the following steps:
- Step 301 The network side device sends network signaling to the terminal, where the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS, and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is an aperiodic CSI-RS configured or activated by the network and sent repeatedly;
- the second CSI-RS and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, or at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indication TCI information or quasi co-location information;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- different CSI-RS sets have different port configurations.
- the method further includes:
- the network side device receives feedback information sent by the terminal, where the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirement including at least one of the following:
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts a channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the time domain offset of the N CSI-RS is greater than the time domain offset of the remaining CSI-RS.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the second CSI-RS set is a CSI-RS set corresponding to a second CSI report configuration; wherein, in the case where the first CSI report configuration corresponds to multiple CSI-RS sets, the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets corresponding to the second CSI-RS set.
- the second CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or quasi-co-located QCL as the first CSI-RS set; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position.
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set;
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to a third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set, and the third CSI-RS set are three CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the time interval from the first time domain position of the predicted channel information fed back by the terminal to any CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the network side device receives first indication information sent by the terminal, where the first indication information is used to indicate that: the time interval from the starting position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs; or
- the network side device sends second indication information to the terminal, where the second indication information is used to indicate that the time interval from the starting position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs.
- the method further includes:
- the network side device sends third indication information to the terminal, where the third indication information is used to indicate at least one of the following:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the value of at least one of K1, K2, M1 and M2 is determined based on the capability and/or feedback requirement of the terminal; and/or
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal.
- the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and an interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold; and/or
- the first aperiodic reference signal resource and the second aperiodic reference signal resource have an associated relationship.
- this embodiment is an implementation of the network side device corresponding to the embodiment shown in Figure 2. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 2. In order to avoid repeated description, this embodiment will not be repeated.
- FIG. 4 is a structural diagram of a reference signal determination device provided in an embodiment of the present application.
- the reference signal determination device 400 includes:
- the determination module 401 is used to determine at least one of a first CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is an aperiodic CSI-RS configured or activated by the network and sent repeatedly;
- the second CSI-RS and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, or at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indication TCI information or quasi co-location information;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- different CSI-RS sets have different port configurations.
- the time domain characteristic of a CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is aperiodic:
- the time domain offset of each CSI-RS in the CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is determined by at least one of the following:
- the device further comprises:
- the first sending module is configured to send feedback information to a network side device, where the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirement including at least one of the following:
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts a channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information;
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information.
- the terminal determines the same CSI-RS by at least one of the following:
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the time domain offset of the N CSI-RS is greater than the time domain offset of the remaining CSI-RS.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the smaller time domain offset means that the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset is smaller, or the CSI-RS subset with a smaller time domain offset means a subset to which the CSI-RS with the smallest time domain offset in the CSI-RS set belongs;
- the larger time domain offset means that the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset is larger, or the CSI-RS subset with a larger time domain offset refers to the subset to which the CSI-RS with the largest time domain offset in the CSI-RS set belongs.
- the first CSI-RS and the second CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS and a second CSI-RS set including the second CSI-RS by at least one of the following:
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the second CSI-RS set is a CSI-RS set corresponding to a second CSI report configuration; wherein, in the case where the first CSI report configuration corresponds to multiple CSI-RS sets, the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets corresponding to the second CSI-RS set.
- the second CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or quasi-co-located QCL as the first CSI-RS set; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position;
- the two CSI-RS subsets are divided by at least one of the following: network signaling, default rule, and time domain offset.
- the first CSI-RS and the third CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set;
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to a third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS, a second CSI-RS set including the second CSI-RS, and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set, and the third CSI-RS set are three CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the terminal predicts CSI based on multiple aperiodic CSI-RSs:
- the time domain offset of the uplink channel is an offset relative to the time domain position corresponding to the last CSI-RS of the multiple non-periodic CSI-RSs, and the uplink channel is an uplink channel used to carry the CSI;
- the terminal determines that the sending time domain resource of the target non-periodic CSI-RS is the first valid downlink time domain resource before or after the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network; wherein the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network is an uplink time domain resource, or the time domain resource corresponding to the target non-periodic CSI-RS indicated by the network collides with other signals or channels.
- the first valid downlink time domain resource before or after the time domain resource corresponding to the target aperiodic CSI-RS includes:
- the first downlink time domain resource that satisfies the CSI-RS pattern mapping before or after the time domain resource corresponding to the target aperiodic CSI-RS;
- the first valid downlink time domain resource that is before or after the time domain resource corresponding to the target aperiodic CSI-RS and does not collide with the physical channel or signal.
- the time interval from the first time domain position of the predicted channel information fed back by the terminal to any CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the device also includes the following:
- a second sending module is used to send first indication information to the network side device, where the first indication information is used to indicate that: the time interval from the starting position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs; or
- the first receiving module is used to receive second indication information sent by a network side device, where the second indication information is used to indicate that the time interval from the starting position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs.
- the device further comprises:
- the second receiving module is used to receive third indication information sent by the network side device, where the third indication information is used to indicate at least one of the following:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the value of at least one of K1, K2, M1 and M2 is determined based on the capability and/or feedback requirement of the terminal; and/or
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal.
- the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and an interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold; and/or
- the first aperiodic reference signal resource and the second aperiodic reference signal resource have an associated relationship.
- the above-mentioned reference signal determination device can improve the transmission performance between communication devices.
- the reference signal determination device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
- the electronic device may be a terminal, or may be a device other than a terminal.
- the terminal may include but is not limited to the types of terminals listed in the embodiment of the present application, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
- the reference signal determination device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 2 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- FIG. 5 is a structural diagram of a reference signal determination device provided in an embodiment of the present application.
- the reference signal determination device 500 includes:
- the first sending module 501 is used to send network signaling to the terminal, and the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is an aperiodic CSI-RS configured or activated by the network and sent repeatedly;
- the second CSI-RS and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, or at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indication TCI information or quasi co-location information;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- different CSI-RS sets have different port configurations.
- the device further comprises:
- the first receiving module is configured to receive feedback information sent by the terminal, where the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirement including at least one of the following:
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts a channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the time domain offset of the N CSI-RS is greater than the time domain offset of the remaining CSI-RS.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the second CSI-RS set is a CSI-RS set corresponding to a second CSI report configuration
- the first CSI report configuration corresponds to multiple CSI-RS sets
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the second CSI-RS set
- the second CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or quasi-co-located QCL as the first CSI-RS set
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position.
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set;
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to the first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to the third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI report configuration corresponds to multiple CSI-RS sets
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set, and the third CSI-RS set are three CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the time interval from the first time domain position of the predicted channel information fed back by the terminal to any CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the device also includes the following:
- a second receiving module is configured to receive first indication information sent by the terminal, where the first indication information is used to indicate that a time interval from a starting position of a prediction window associated with channel information to any CSI-RS is associated with a time interval between multiple CSI-RSs; or
- the second sending module is used to send second indication information to the terminal, where the second indication information is used to indicate that the time interval from the starting position of the prediction window associated with the channel information to any CSI-RS is associated with the time interval between multiple CSI-RSs.
- the device further comprises:
- the third sending module is configured to send third indication information to the terminal, where the third indication information is used to indicate at least one of the following:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the value of at least one of K1, K2, M1 and M2 is determined based on the capability and/or feedback requirement of the terminal; and/or
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal.
- the first aperiodic reference signal resource is earlier than the second aperiodic reference signal resource, and the interval between the first aperiodic reference signal resource and the second aperiodic reference signal resource is greater than or equal to a preset threshold.
- the first aperiodic reference signal resource and the second aperiodic reference signal resource have an associated relationship.
- the above-mentioned reference signal determination device can improve the transmission performance between communication devices.
- the reference signal determination device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
- the electronic device may be a terminal or a network side device.
- the reference signal determination device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- an embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, wherein the memory 602 stores a program or instruction that can be run on the processor 601.
- the communication device 600 is a terminal
- the program or instruction is executed by the processor 601 to implement the various steps of the embodiment of the reference signal determination method on the terminal side, and the same technical effect can be achieved.
- the communication device 600 is a network side device
- the program or instruction is executed by the processor 601 to implement the various steps of the embodiment of the reference signal determination method on the network side device side, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
- the embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the processor is used to determine at least one of a first CSI-RS, a second CSI-RS, and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- the communication device embodiment corresponds to the reference signal determination method embodiment on the terminal side, and each implementation process and implementation method of the method embodiment can be applied to the communication device embodiment, and can achieve the same technical effect.
- FIG7 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.
- the terminal 700 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 710 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
- a power source such as a battery
- the terminal structure shown in FIG7 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 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processing unit 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
- the display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
- the user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072.
- the touch panel 7071 is also called a touch screen.
- the touch panel 7071 may include two parts: a touch detection device and a touch controller.
- Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
- the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device.
- the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
- the memory 709 can be used to store software programs or instructions and various data.
- the memory 709 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 709 may include a volatile memory or a non-volatile memory, or the memory 709 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), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
- the memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memories.
- the processor 710 may include one or more processing units; optionally, the processor 710 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 710.
- Processor 710 is used to determine at least one of a first CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is an aperiodic CSI-RS configured or activated by the network and sent repeatedly;
- the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, or the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs. At least two of the CSI-RSs belong to different CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indication TCI information or quasi co-location information;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- different CSI-RS sets have different port configurations.
- the time domain characteristic of a CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is aperiodic:
- the time domain offset of each CSI-RS in the CSI-RS set associated with the first CSI-RS, the second CSI-RS, and the third CSI-RS is determined by at least one of the following:
- the radio frequency unit 701 is used to: send feedback information to the network side device, where the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirement including at least one of the following:
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts a channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information;
- the terminal reports the channel information that is not predicted based on the prediction model to the network side device, or the terminal does not report the channel information.
- the terminal determines the same CSI-RS by at least one of the following:
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the time domain offset of the N CSI-RS is greater than the time domain offset of the remaining CSI-RS.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the first CSI-RS and the second CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS and a second CSI-RS set including the second CSI-RS by at least one of the following:
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the second CSI-RS set is a CSI-RS set corresponding to a second CSI report configuration
- the first CSI report configuration corresponds to multiple CSI-RS sets
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the second CSI-RS set
- the second CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or quasi-co-located QCL as the first CSI-RS set
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position;
- the two CSI-RS subsets are divided by at least one of the following: network signaling, default rule, and time domain offset.
- the first CSI-RS and the third CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set;
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to a third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RS sets:
- the terminal determines a first CSI-RS set including the first CSI-RS, a second CSI-RS set including the second CSI-RS, and a third CSI-RS set including the third CSI-RS by at least one of the following:
- Network signaling default rules, time domain offset, set identification, time domain characteristics.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set, and the third CSI-RS set are three CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the terminal predicts CSI based on multiple aperiodic CSI-RSs:
- the time domain offset of the uplink channel is an offset relative to the time domain position corresponding to the last CSI-RS of the multiple non-periodic CSI-RSs, and the uplink channel is an uplink channel used to carry the CSI;
- the terminal determines that the sending time domain resource of the target aperiodic CSI-RS is the first valid downlink time domain resource before or after the time domain resource corresponding to the target aperiodic CSI-RS indicated by the network; wherein the time domain resource corresponding to the target aperiodic CSI-RS indicated by the network
- the source is an uplink time domain resource, or the time domain resource corresponding to the target aperiodic CSI-RS indicated by the network collides with other signals or channels.
- the first valid downlink time domain resource before or after the time domain resource corresponding to the target aperiodic CSI-RS includes:
- the first downlink time domain resource that satisfies the CSI-RS pattern mapping before or after the time domain resource corresponding to the target aperiodic CSI-RS;
- the first valid downlink time domain resource that is before or after the time domain resource corresponding to the target aperiodic CSI-RS and does not collide with the physical channel or signal.
- the time interval from the first time domain position of the predicted channel information fed back by the terminal to any CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the radio frequency unit 701 is also used for the following:
- Second indication information sent by a network side device is received, where the second indication information is used to indicate that a time interval from a starting position of a prediction window associated with channel information to any CSI-RS is associated with a time interval between multiple CSI-RSs.
- the radio frequency unit 701 is further configured to:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the value of at least one of K1, K2, M1 and M2 is determined based on the capability and/or feedback requirement of the terminal; and/or
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal.
- the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and an interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold; and/or
- the first aperiodic reference signal resource and the second aperiodic reference signal resource have an associated relationship.
- the above-mentioned terminals can improve the transmission performance between communication devices.
- the embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to send network signaling to a terminal, and the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS, and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- This communication device embodiment corresponds to the Doppler measurement method embodiment on the network side device side, and each implementation process and implementation method of the above method embodiment can be applied to the communication device embodiment, and can achieve the same technical effect.
- the embodiment of the present application also provides a network side device.
- the network side device 800 includes: an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804 and a memory 805.
- the antenna 801 is connected to the radio frequency device 802.
- the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing.
- the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802.
- the radio frequency device 802 processes the received information and sends it out through the antenna 801.
- the method executed by the network-side device in the above embodiment may be implemented in the baseband device 803, which includes a baseband processor.
- the baseband device 803 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG8 , wherein one of the chips is, for example, a baseband processor, which is connected to the memory 805 through a bus interface to call the program in the memory 805 and execute the network device operations shown in the above method embodiment.
- the network side device may also include a network interface 806, which is, for example, a common public radio interface (CPRI).
- a network interface 806, which is, for example, a common public radio interface (CPRI).
- CPRI common public radio interface
- the network side device 800 of the embodiment of the present application also includes: instructions or programs stored in the memory 805 and executable on the processor 804.
- the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- the radio frequency device 802 is used to send network signaling to the terminal, and the network signaling is used by the terminal to determine at least one of a first channel measurement reference signal CSI-RS, a second CSI-RS and a third CSI-RS, wherein the first CSI-RS is used for channel prediction, the second CSI-RS is used for training a prediction model, and the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- CSI-RS channel measurement reference signal
- second CSI-RS is used for training a prediction model
- the third CSI-RS is used to monitor the channel prediction performance of the terminal.
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS are signals of the same CSI-RS at different measurement times;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS are different CSI-RSs.
- the same CSI-RS is a periodic CSI-RS configured or activated by the network, or the same CSI-RS is a semi-persistent CSI-RS configured or activated by the network, or the same CSI-RS is an aperiodic CSI-RS configured or activated by the network and sent repeatedly;
- the second CSI-RS and the third CSI-RS are different CSI-RSs: at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to the same Different CSI-RSs in a CSI-RS set, or at least two of the first CSI-RS, the second CSI-RS and the third CSI-RS belong to different CSI-RS sets.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the same CSI-RS set is a periodic CSI-RS set configured or activated by the network, or the same CSI-RS set is a semi-persistent CSI-RS set configured or activated by the network, or the same CSI-RS set is an aperiodic CSI-RS set configured or activated by the network;
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have the same transmission configuration indication TCI information or quasi co-location information;
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different frequency domain densities
- At least two of the first CSI-RS, the second CSI-RS, and the third CSI-RS have different bandwidths
- At least two of the first CSI-RS, the second CSI-RS and the third CSI-RS have different port configurations.
- the first CSI-RS, the second CSI-RS, and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set, at least one of the following features exists:
- the second CSI-RS belongs to one CSI-RS set, the first CSI-RS and the third CSI-RS belong to another CSI-RS set, the third CSI-RS belongs to one CSI-RS set, and the first CSI-RS and the second CSI-RS belong to another CSI-RS set, or the first CSI-RS, the first CSI-RS and the third CSI-RS belong to different CSI-RS sets respectively;
- different CSI-RS sets have different time domain characteristics
- different CSI-RS sets have different frequency domain densities
- different CSI-RS sets have different bandwidths
- different CSI-RS sets have different port configurations.
- the radio frequency device 802 is further used for:
- the feedback information is used to indicate at least one of the following:
- the terminal predicts demand for a channel.
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirement including at least one of the following:
- the requirement for the terminal to train the prediction model includes at least one of the following:
- the terminal predicts the channel requirements including:
- the terminal predicts a channel demand
- the terminal predicts channel requirements under at least one time-domain channel characteristic.
- the requirements for the terminal training prediction model include: minimum requirements for the terminal training prediction model;
- the terminal predicts the channel requirement, including: the minimum channel requirement predicted by the terminal.
- the first CSI-RS and the second CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets includes the first CSI-RS, and the CSI-RS in the other CSI-RS subset includes the second CSI-RS; or
- the N CSI-RSs in the same CSI-RS set are the first CSI-RSs, and the remaining CSI-RSs are the second CSI-RSs, where N is the number of time domain units.
- the time domain offset of the N CSI-RS is greater than the time domain offset of the remaining CSI-RS.
- the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the second CSI-RS is less than the sum of the time domain offsets of all CSI-RSs in the CSI-RS subset corresponding to the first CSI-RS; or,
- the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the second CSI-RS is smaller than the time domain offset of each CSI-RS in the CSI-RS subset corresponding to the first CSI-RS; or,
- the CSI-RS subset corresponding to the second CSI-RS is the subset to which the CSI-RS with the smallest time domain offset belongs; or,
- the CSI-RS subset corresponding to the first CSI-RS is the subset to which the CSI-RS with the largest time domain offset belongs.
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to the first CSI report configuration
- the second CSI-RS set The first CSI report configuration corresponds to a plurality of CSI-RS sets, wherein the first CSI-RS set is a CSI-RS set having the same TCI as the second CSI-RS set among the plurality of CSI-RS sets; or, the second CSI report configuration corresponds to a plurality of CSI-RS sets, the second CSI-RS set is a CSI-RS set having the same TCI or quasi-co-located QCL as the first CSI-RS set among the plurality of CSI-RS sets; or,
- the first CSI-RS set and the second CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the third CSI-RS and the first CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS; and/or,
- the third CSI-RS and the second CSI-RS are the same periodic CSI-RS or the same semi-persistent CSI-RS.
- the first CSI-RS and the third CSI-RS belong to different CSI-RSs in the same CSI-RS set:
- the same CSI-RS set includes two CSI-RS subsets, the CSI-RS in one of the two CSI-RS subsets is the first CSI-RS, and the CSI-RS in the other CSI-RS subset is the third CSI-RS.
- the time domain positions of the CSI-RS in the CSI-RS subset associated with the third CSI-RS are all later than or equal to the CSI reference time domain position or the CSI report time domain position.
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set;
- the third CSI-RS set is a periodic or semi-persistent CSI-RS set.
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets corresponding to two CSI reporting configurations, and the two CSI reporting configurations are associated; or,
- the first CSI-RS set is a CSI-RS set corresponding to a first CSI report configuration
- the third CSI-RS set is a CSI-RS set corresponding to a third CSI report configuration
- the first CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI as the third CSI-RS set
- the third CSI-RS set is a CSI-RS set among the multiple CSI-RS sets that has the same TCI or QCL as the first CSI-RS set
- the first CSI-RS set and the third CSI-RS set are two CSI-RS sets with the same TCI or QCL among multiple CSI-RS sets configured or activated by the network.
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are three CSI-RS sets corresponding to the same channel state information CSI report configuration; or,
- the first CSI-RS set, the second CSI-RS set and the third CSI-RS set are network configuration or or three CSI-RS sets with the same TCI or QCL among the multiple CSI-RS sets activated.
- the time interval from the first time domain position of the predicted channel information fed back by the terminal to any CSI-RS is associated with the time interval between multiple CSI-RSs; or,
- the radio frequency device 802 is further configured to include the following:
- the terminal receiving first indication information sent by the terminal, where the first indication information is used to indicate that a time interval from a start position of a prediction window associated with channel information to any CSI-RS is associated with a time interval between multiple CSI-RSs; or
- Second indication information is sent to the terminal, where the second indication information is used to indicate that a time interval from a starting position of a prediction window associated with the channel information to any CSI-RS is associated with a time interval between multiple CSI-RSs.
- the radio frequency device 802 is further used for:
- the first aperiodic reference signal resource is used for at least one of the following: the terminal trains the prediction model and predicts the predicted channel performance of the terminal, and the first aperiodic reference signal resource is a resource used to transmit at least one of the second CSI-RS and the third CSI-RS;
- the second non-periodic reference signal resource is used for at least one of the following: the terminal predicts the channel and the terminal trains the prediction model, and the second non-periodic reference signal resource is a resource used to transmit at least one of the first CSI-RS and the second CSI-RS.
- the first non-periodic reference signal resources include K1 reference signal resources, and two adjacent reference signals are separated by M1 time domain resources; and/or
- the second non-periodic reference signal resources include K2 reference signal resources, and two adjacent reference signals are spaced apart by M2 time domain resources.
- the value of at least one of K1, K2, M1 and M2 is determined based on the capability and/or feedback requirement of the terminal; and/or
- the minimum frequency domain bandwidth of the first non-periodic reference signal resource is determined based on the capability of the terminal.
- the first non-periodic reference signal resource is earlier than the second non-periodic reference signal resource, and an interval between the first non-periodic reference signal resource and the second non-periodic reference signal resource is greater than or equal to a preset threshold; and/or
- the first aperiodic reference signal resource and the second aperiodic reference signal resource have an associated relationship.
- the above network side equipment can improve the transmission performance between communication devices.
- An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored.
- a program or instruction is stored on which a program or instruction is stored.
- 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.
- the present application also 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 a program or instruction to implement the above-mentioned reference signal determination method embodiment.
- 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 a program or instruction to implement the above-mentioned reference signal determination method embodiment.
- 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.
- An embodiment of the present application further provides a computer program/program product, which is stored in a storage medium.
- the computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned reference signal determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- An embodiment of the present application also provides a reference signal determination system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the reference signal determination method on the terminal side provided in the embodiment of the present application, and the network side device can be used to execute the steps of the reference signal determination method on the network side device side provided in the embodiment of the present application.
- 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, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
- a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
- a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
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Abstract
本申请公开了一种参考信号确定方法、终端及网络侧设备,属于通信技术领域,本申请实施例的参考信号确定方法包括:终端确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
Description
相关申请的交叉引用
本申请主张在2022年10月31日在中国提交的中国专利申请No.202211352315.3的优先权,其全部内容通过引用包含于此。
本申请属于通信技术领域,具体涉及一种参考信号确定方法、终端及网络侧设备。
目前终端主要是基于信道状态信息参考信号(channel state information reference signal,CSI-RS)进行信道预测,也就是说,目前CSI-RS默认是用于信道预测。也就是说,目标通信设备之间传递的CSI-RS始终是用于信道预测,这样导致通信设备之间的传输性能比较差。
发明内容
本申请实施例提供一种参考信号确定方法、终端及网络侧设备,能够解决通信设备之间的传输性能比较差的问题。
第一方面,提供了一种参考信号确定方法,包括:
终端确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第二方面,提供了一种参考信号确定方法,包括:
网络侧设备向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第三方面,提供了一种参考信号确定装置,包括:
确定模块,用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第四方面,提供了一种参考信号确定装置,包括:
第一发送模块,用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量
参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第五方面,提供了一种终端,该终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如本申请实施例提供的终端侧的参考信号确定方法的步骤。
第六方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第七方面,提供了一种网络侧设备,该网络侧设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如本申请实施例提供的网络侧设备侧的参考信号确定方法的步骤。
第八方面,提供了一种网络侧设备,包括处理器及通信接口,其中,所述通信接口用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
第九方面,提供了一种参考信号确定系统,包括:终端及网络侧设备,所述终端可用于执行如本申请实施例提供的终端侧的参考信号确定方法的步骤,所述网络侧设备可用于执行如本申请实施例提供的网络侧设备侧的参考信号确定方法的步骤。
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如本申请实施例提供的终端侧的参考信号确定方法的步骤,或者实现如本申请实施例提供的网络侧设备侧的参考信号确定方法的步骤。
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如本申请实施例提供的终端侧的参考信号确定方法,或实现如本申请实施例提供的网络侧设备侧的参考信号确定方法。
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如本申请实施例提供的终端侧的参考信号确定方法的步骤,或者,所述计算机程序/程序产品被至少一个处理器执行以实现如本申请实施例提供的网络侧设备侧的参考信号确定方法的步骤。
在本申请实施例中,终端确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。这样可以实现通信设备之间传输的CSI-RS支持多种用途,从而提高通信设备之间的传输性能。
图1是本申请实施例可应用的一种无线通信系统的框图;
图2是本申请实施例提供的一种参考信号确定方法的流程图;
图3是本申请实施例提供的另一种参考信号确定方法的流程图;
图4是本申请实施例提供的一种参考信号确定装置的结构图;
图5是本申请实施例提供的另一种参考信号确定装置的结构图;
图6是本申请实施例提供的一种通信设备的结构图;
图7是本申请实施例提供的一种终端的结构图;
图8是本申请实施例提供的一种网络侧设备的结构图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、
移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Networks,WLAN)接入点或WiFi节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM),统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF),网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的一种参考信号确定方法、终端及网络侧设备进行详细地说明。
请参见图2,图2是本申请实施例提供的一种参考信号确定方法的流程图,如图2所示,包括以下步骤:
步骤201、终端确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
终端确定第一CSI-RS可以是基于网络侧信令、默认规则等中的至少一项确定用于进行信道预测的第一CSI-RS。
上述第一CSI-RS可以是一个或者多个CSI-RS,或者一个CSI-RS的一个或者多个测量时机。
一些实施方式中,本申请中的CSI-RS可以是信道测量CSI-RS(CSI-RS for channel measurement,CMR),或者其他CSI-RS,协议中定义的CSI-RS,对此不作限定。
终端确定第二CSI-RS可以是基于网络侧信令、默认规则等中的至少一项确定用于所述终端训练预测模型的第二CSI-RS。
上述第二CSI-RS可以是一个或者多个CSI-RS,或者一个CSI-RS的一个或者多个测量时机。
上述第二CSI-RS用于训练预测模型可以理解为,上述终端基于上述第二CSI-RS对上述预测模型进行训练。
上述预测模型可以是用于预测信道的预测模型,例如:人工智能(Artificial Intelligence,AI)网络或自回归(Auto Regressive,AR)网络,或者预测滤波器,或者预测算法。
上述第二CSI-RS用于训练预测模型可以是,上述第二CSI-RS用于训练AI网络模型,或者上述第二CSI-RS用于训练预测滤波器,或者上述第二CSI-RS用于训练AR系数,或者上述第二CSI-RS用于预测算法。
上述终端确定第三CSI-RS可以是基于网络侧信令、默认规则等中的至少一项确定用于监控所述终端的信道预测性能的第三CSI-RS。
上述第三CSI-RS可以是一个或者多个CSI-RS,或者一个CSI-RS的一个或者多个测量时机。
上述第三CSI-RS用于监控所述终端的信道预测性能可以理解为,基于上述第三CSI-RS的信道预测结果来监控或者校验终端的信道预测性能,例如:将第三CSI-RS获取的信道与之前的预测的信道结果进行校验,以监控终端的信道预测性能。
另外,上述第一CSI-RS、第二CSI-RS和第三CSI-RS可以为终端接收网络侧设备发送的CSI-RS,在一些实施方式中,上述第一CSI-RS、第二CSI-RS和第三CSI-RS也可以是上述终端接收其他终端发送的CSI-RS。
本申请实施例中,这样可以实现通信设备之间传输的CSI-RS支持多种用途,从而提高通信设备之间的传输性能。
在一些实施方式中,上述方法还可以包括上述终端基于上述第一CSI-RS获取的信道来预测未来时刻的信道,另外,还可以基于上述第一CSI-RS获取的信道和训练完成的预测模型预测未来时刻的信道。
另外,上述方法还可以包括如下至少一项:
基于上述第二CSI-RS训练上述预测模型,例如:基于上述第二CSI-RS训练预测滤波器系数、训练AI网络;
基于上述第三CSI-RS监控或者校验终端的信道预测性能,例如:基于第三CSI-RS获取信道,利用获取的信道与之前的预测的结果进行比较,以获取终端的信道预测性能。
另外,还可以将预测性能反馈网络侧设备,以方便网络优化测量配置。
该实施方式中,基于上述第二CSI-RS训练上述预测模型,这样可以使得预测模型中的参数更加准确,进而提高终端的预测性能,而通过上述监控可以监控到终端的预测性能,这样在监控到终端的预测性能下降或者比较差的情况下,对预测方式进行优化,或者,网络侧设备优化测量配置,进而提高终端的预测性能。
作为一种可选的实施方式,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
其中,上述至少两项为同一个CMS可以是,网络下发了一个CSI-RS配置,上述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项都是基于该一个配置得到的。上述至少两项为不同CSI-RS可以是,网络下发了多个配置,不同CSI-RS是根据不同的配置得到的CSI-RS。
另外,上述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号可以理解为如下至少一项:
第一CSI-RS和第二CSI-RS为同一个CSI-RS在不同测量时机的信号;
第一CSI-RS和第三CSI-RS为同一个CSI-RS在不同测量时机的信号;
第二CSI-RS和第三CSI-RS为同一个CSI-RS在不同测量时机的信号;
第一CSI-RS、第二CSI-RS和第三CSI-RS为同一个CSI-RS在不同测量时机的信号。
另外,上述第一CSI-RS可以是上述信号中一个或者多个测量时机的信号,上述第二CSI-RS可以是上述信号中一个或者多个测量时机的信号,上述第三CSI-RS可以是上述信号中一个或者多个测量时机的信号。
由于第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号,这样可以实现通过同一个信号进行信道预测,以及训练预测模型和/或监督终端预测性能,从而不需要引入其他信号,进而降低复杂度。例如:训练预测模型、预测信道和监控终端预测性能,可以基于一个CSI-RS的多个测量时机完成。
上述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS可以理解为如下至少一项:
第一CSI-RS和第二CSI-RS为同一个CSI-RS为不同CSI-RS;
第一CSI-RS和第三CSI-RS为同一个CSI-RS为不同CSI-RS;
第二CSI-RS和第三CSI-RS为同一个CSI-RS为不同CSI-RS;
第一CSI-RS、第二CSI-RS和第三CSI-RS为不同CSI-RS。
这样可以实现通过不同的CSI-RS进行训练预测模型、预测信道和监控终端预测性能,
网络的配置可以更加灵活。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS。
上述同一个CSI-RS为网络配置或者激活的周期CSI-RS可以是,上述第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少两项为该周期CSI-RS的不同测量时机,例如:第一CSI-RS和第二CSI-RS为同一个周期CSI-RS的不同测量时机,又如第一CSI-RS和第三CSI-RS为同一个周期CSI-RS的不同测量时机。
上述同一个CSI-RS为网络配置或者激活的半持续CSI-RS可以是,上述第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少两项为该半持续CSI-RS的不同测量时机,例如:第一CSI-RS和第二CSI-RS为同一个半持续CSI-RS的不同测量时机,又如第一CSI-RS和第三CSI-RS为同一个半持续CSI-RS的不同测量时机。
上述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS可以是,上述第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少两项为重复发送的非周期CSI-RS的不同测量时机,例如:第一CSI-RS和第二CSI-RS为重复发送的非周期CSI-RS的不同测量时机,又如第一CSI-RS和第三CSI-RS为同一个重复发送的非周期CSI-RS的不同测量时机。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
本申请实施例中,CSI-RS属于CSI-RS集合可以理解为,CSI-RS关联或者配置在CSI-RS集合中。
上述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS可以理解为如下至少一项:
第一CSI-RS和第二CSI-RS关联到一个CSI-RS集合中;
第一CSI-RS和第三CSI-RS关联到一个CSI-RS集合中;
第二CSI-RS和第三CSI-RS关联到一个CSI-RS集合中;
第一CSI-RS、第二CSI-RS和第三CSI-RS关联到一个CSI-RS集合中。
第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合以理解为如下至少一项:
第一CSI-RS和第二CSI-RS关联到两个CSI-RS集合中;
第一CSI-RS和第三CSI-RS关联到两个CSI-RS集合中;
第二CSI-RS和第三CSI-RS关联到两个CSI-RS集合中;
第一CSI-RS、第二CSI-RS和第三CSI-RS关联到三个CSI-RS集合中。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示(Transmission Configuration Indicator,TCI)信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
上述同一个CSI-RS集合为周期、半持续或非周期CSI-RS集合可以实现上述第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少两项关联到同一个周期、半持续或非周期CSI-RS集合中。
在上述至少两项具备不同的频域密度的情况下,如果上述第二CSI-RS与上述第一CSI-RS或者第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS,则上述第二CSI-RS可以是具有较小频域密度,这样利用于预测模型的训练。
在上述至少两项具备不同的带宽的情况下,如果上述第二CSI-RS与上述第一CSI-RS或者第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS,则上述第二CSI-RS可以是具有较小带宽,这样利用于预测模型的训练。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,
不同CSI-RS集合具备不同的端口配置。
该实施方式中,可以实现预测模型训练关联到一个CSI-RS集合,预测信道和监控预测性能关联到另一个CSI-RS集合;或者,预测模型训练、信道预测和监控预测性能分别关联到不同的CSI-RS集合;或者,预测模型训练和信道预测关联到一个CSI-RS集合,监控预测性能关联到另一个CSI-RS集合。
上述不同CSI-RS集合具备不同的时域特性可以是,不同CSI-RS集合具有不同的周期、非周期或半持续特性。
上述不同CSI-RS集合具备不同的频域密度,如果上述第二CSI-RS与上述第一CSI-RS或者第三CSI-RS关联到不同CSI-RS集合中,则上述第二CSI-RS关联到的CSI-RS集合具有较小的频域密度,这样利用于预测模型的训练。
上述不同CSI-RS集合具备不同的带宽,如果上述第二CSI-RS与上述第一CSI-RS或者第三CSI-RS关联到不同CSI-RS集合中,则上述第二CSI-RS关联到的CSI-RS集合具有较小的带宽,这样利用于预测模型的训练。
在一些实施例中,对于关联同一个预测信道过程中,用于上述第一CSI-RS、第二CSI-RS和第三CSI-RS可以具有相同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合的时域特性为非周期的情况下:
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合中每个CSI-RS的时域偏移通过如下至少一项确定:
网络信令、默认规则。
上述网络信令可以是高层信令,上述默认规则可以是预先配置规则或者协议约定,上述时域偏移可以时隙偏移、符号偏移或者子时隙偏移等,另外,上述时域偏移可以是相对于触发上述CSI-RS集合的触发信令的时域位置的偏移,如相对于触发上述CSI-RS集合的下行控制信息(Downlink Control Information,DCI)的时域位置,或者上述时域偏移可以是相对于某特定的参考时域位置的偏移,具体对此不作限定。
例如:网络侧通过网络信令为上述CSI-RS集合指示一个时隙偏移值n,该CSI-RS集合内的第一个CSI-RS关联的时隙偏移值为n,第二个CSI-RS的时隙偏移值为n+m,第三个CSI-RS的时隙偏移值为n+2*m,依次类推。其中m的取值可以为默认规则,例如1。或者m的取值为网络指示。
又例如:网络侧通过网络信令为上述CSI-RS集合指示一个时隙偏移值n,该CSI-RS集合内的CSI-RS ID最小的CSI-RS关联的时隙偏移值为n,CSI-RS ID第二小的CSI-RS的时隙偏移值为n+m,CSI-RS ID第三小的CSI-RS的时隙偏移值为n+2*m,依次类推。其中m的取值可以为默认规则,例如1,或者m的取值为网络指示。
作为一种可选的实施方式,所述方法还包括:
所述终端向网络侧设备发送反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
其中,上述终端训练预测模型的需求可以是,终端训练AI网络模型的需求,或者,终端训练预测滤波器的需求,或者,终端训练AR系数的需求,或者,训练预测算法的需求等。
另外,上述需求可以是测量时机数量需求、时域密度需求、CSI-RS数量需求。
例如:上述终端训练预测模型的需求可以包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
上述终端预测信道的需求可以包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
例如:终端反馈训练过程和/或预测过程所需要的测量时机数量、测量时隙数量、测量符号数量、时域密度中的至少一项。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
上述CSI-RS配置可以是周期配置、端口配置、频域密度配置中的至少一项。
该实施方式中,上述终端可以反馈多个周期配置、多个端口配置、多个频域密度配置下的,训练过程和/或预测过程所需要的测量时机数量、测量时隙数量或者测量符号数量。
该实施方式中,上述终端可以反馈多个不同时域信道特性下的,训练过程和/或预测过程所需要的测量时机数量、测量时隙数量、测量符号数量、时域密度、频域密度、频域带宽中的至少一项。
在一些实施方式中,上述需求或者数量为最小需求或者最小数量。
在一些实施方式中,网络侧设备可以根据终端反馈的时域信道特性情况,获取终端用于训练和/或预测的需求。另外,对于不满足需求的配置,终端可以不反馈或者不更新相应的预测的信道信息,如CSI。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
其中,上述终端训练预测模型的最小需求可以是,终端训练预测模型的所需最小测量时机数量、所需最小时域资源数量、所需最小时域密度、所需最小CSI-RS数量,即满足这个最小需求就可以完成预测模型训练,但网络则可以配置比最小需求更多的配置。
上述终端预测信道的最小需求可以是,终端训练预测信道的所需最小测量时机数量、所需最小时域资源数量、所需最小时域密度、所需最小CSI-RS数量,即满足这个最小需求就可以完成信道预测,但网络则可以配置比最小需求更多的配置。
该实施方式中,通过上述最小需求可以节约资源配置,例如:网络侧设备在资源紧张的情况下,可以为终端配置上述最小需求,而在资源宽松的情况下,可以配置比最小需求要多的资源,以使得终端可以更好地完成信道预测、预测模型训练和预测性能监控。
在一些实施方式中,上述终端训练预测模型的需求可以包括如下至少一项:
训练所述预测模型的测量时机数量的最小需求;
训练所述预测模型的时域资源数量的最小需求;
训练所述预测模型的时域密的最小需求度;
训练所述预测模型的CSI-RS数量的最小需求;
上述终端预测信道的需求可以包括如下至少一项:
预测信道的测量时机数量的最小需求;
预测信道的时域资源数量的最小需求;
预测信道的时域密度的最小需求;
预测信道的CSI-RS数量的最小需求。
在一些实施方式中,所述终端训练预测模型的需求可以包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的最小需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的最小需求;
上述终端预测信道的需求可以包括:
在至少一个CSI-RS配置下,所述终端预测信道的最小需求;
在至少一种时域信道特性下,所述终端预测信道的最小需求。
可选的,在所述预测模型训练的资源未达到所述终端训练预测模型的需求的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息;
或者,
在网络配置的预测信道的资源处于所述终端训练所述预测模型的训练期间的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息。
上述预测模型训练的资源未达到终端训练预测模型的需求可以是,测量时机数量、时域资源数量、时域密度、CSI-RS数量中的至少一项未达到相应的需求。
上述网络配置的预测信道的资源处于所述终端训练所述预测模型的训练期间可以是,网络配置的预测信道的资源与终端训练预测模型的训练期间存在重叠。
上述实施方式中,所述第一CSI-RS和所述第二CSI-RS可以为同一个CSI-RS。
该实施方式中,可以实现在对于不满足需求的配置,终端可以不反馈信道信息,如不反馈CSI,或者反馈未基于预测模型预测的信道信息,如反馈基于其他方式预测的信道信息。在一些实施方式中,当预测模型训练的资源未达到终端训练预测模型的需求或者网络配置的预测信道的资源未达到终端预测信道的需求时,可以不反馈信道信息或者不更新相应的预测的信道信息。
通过上报未基于预测模型预测的信道信息,可以提高终端的信道信息上报性能。
在一些实施方式中,当训练和预测通过一个CSI-RS完成时,如果训练时机数量没有达到终端完成训练的需求,终端仅可以反馈非预测的信道状态信息,具体为反馈未基于述预测模型预测的信道状态信息。也就是说,在训练过程,网络可以配置非预测的信道状态信息反馈;或者,如果网络配置的预测的信道状态信息反馈处于训练期间,终端可以反馈非预测的信道状态信息或者不反馈或者不更新。
作为一种可选的实施方式,所述第一CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下,所述终端通过如下至少一项确定所述同一个CSI-RS:
网络信令、默认规则。
该实施方式中,可以实现预测模型训练和信道预测通过一个CSI-RS完成,这样可以降低预测模型训练和信道预测的信号开销。
上述网络信令指示上述CSI-RS既用于预测模型训练也用于信道预测,或者上述默认规则上述CSI-RS既用于预测模型训练也用于信道预测,例如:当配置一个CSI-RS时,终端默认该CSI-RS既用于预测模型训练也用于信道预测,当配置一个特定配置或者特定资源的CSI-RS时,终端默认该CSI-RS既用于预测模型训练也用于信道预测。
作为一种可选的实施方式,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
在一些实施方式中,上述N可以为网络通过码本配置信令指示的时域单元数量,也可以是通过其他信令指示或者协议定义。
上述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS可以是,信道预测和预测模型训练通过多个CSI-RS完成,这多个CSI-RS关联或者配置在一个CSI-RS集合。
上述N个CSI-RS可以是,通过上述码本配置信令指示的时域单元数量N,确定的N个CSI-RS,上述其余CSI-RS为所述第二CSI-RS可以是,将上述CSI-RS集合中除上述N个CSI-RS之外的CSI-RS作为上述第二CSI-RS。
在一些实施方式中,上述N个CSI-RS的时域偏移可以大于所述其余CSI-RS的时域偏移。这样可以实现将上述CSI-RS集合中时域偏移较大的N个CSI-RS用于信道预测,其余的CSI-RS用于预测模型训练,这样可以实现基于时域位置较早的CSI-RS进行预测模型训练,从而可以基于训练完的预测模型预测信道信息,以提高信道信息的预测准确性。
可选的,所述两个CSI-RS子集存在如下至少一项特征:
所述终端不期望包括所述第二CSI-RS的CSI-RS子集的时域偏移大于所述第一CSI-RS的CSI-RS子集的时域偏移;
所述两个CSI-RS子集通过如下至少一项进行划分:网络信令、时域偏移。
上述终端不期望包括所述第二CSI-RS的CSI-RS子集的时域偏移大于所述第一CSI-RS的CSI-RS子集的时域偏移可以是,终端不期望用于预测模型训练的CSI-RS的时域偏移大于用于信道预测的CSI-RS的时域偏移,如果出现该情况,终端不执行信道预测过程,即不反馈相应信道信息,这样可以避免终端反馈不准确的信道信息。
上述两个CSI-RS子集通过网络信令、时域偏移中至少一项进行划分可以是,上述网络信令显式指示用于预测模型训练的CSI-RS子集,以及指示用于信道预测的CSI-RS子集,或者,上述默认第一个子集用于预测模型训练,第二个子集用于信道预测。网络信令隐式指示用于预测模型训练的CSI-RS子集,以及隐式指示用于信道预测的CSI-RS子集
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
例如:在所述两个CSI-RS子集可以通过时域偏移进行划分的情况下:
时域偏移较小的CSI-RS子集内的CSI-RS为所述第二CSI-RS,时域偏移较大的CSI-RS子集内的CSI-RS为所述第一CSI-RS。
或者,终端获取一个参考时隙,大于或者大于等于该参考时隙的CSI-RS为所述第一CSI-RS,小于或者小于等于该参考时隙的CSI-RS为所述第二CSI-RS。
上述时域偏移较小是指CSI-RS子集内所有CSI-RS的时域偏移之和较小,或者,所述时域偏移较小的CSI-RS子集是指CSI-RS集合内最小时域偏移的CSI-RS所属的子集;
所述时域偏移较大是指CSI-RS子集内所有CSI-RS的时域偏移之和较大,或者,所述时域偏移较大的CSI-RS子集是指CSI-RS集合内最大时域偏移的CSI-RS所属的子集。
该实施方式中,由于时域偏移较小的CSI-RS子集包括第二CSI-RS,这样可以实现终
端基于上述CSI-RS集合中较早的CSI-RS进行预测模型训练,从而可以实现基于训练完的预测模型预测信道信息,以提高信道信息的预测准确性。
作为一种可选的实施方式,所述第一CSI-RS和所述第二CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第二CSI-RS的第二CSI-RS集合:
网络信令、时域偏移、集合标识、时域特性。
上述网络信令可以显式指示一个用于预测模型训练的CSI-RS,一个用于信道预测的CSI-RS集合。
另外,在该实施方式中,终端不期望出现用于预测模型训练的CSI-RS的时域偏移大于用于信道预测的CSI-RS的时域偏移,如果出现,终端不执行信道预测过程,不反馈相应信道信息。
上述通过时域偏移确定第一CSI-RS集合和第二CSI-RS集合可以是,终端默认时域偏移较小CSI-RS关联的CSI-RS集合为上述第二CSI-RS集合,即终端默认时域偏移较小CSI-RS关联的CSI-RS集合用于预测模型训练,时域偏移较大CSI-RS关联的CSI-RS集合为上述第一CSI-RS集合,即时域偏移较大CSI-RS关联的CSI-RS集合用于信道预测。
上述通过时域偏移确定第一CSI-RS集合和第二CSI-RS集合可以是,终端通过CSI-RS集合标识进行区分第一CSI-RS集合和第二CSI-RS集合,例如:集合标识较小的CSI-RS集合为上述第二CSI-RS集合,即集合标识的CSI-RS集合用于预测模型训练,集合ID较大的CSI-RS集合为上述第一CSI-RS集合,即集合标识的CSI-RS集合用于信道预测。
上述通过时域特性确定第一CSI-RS集合和第二CSI-RS集合可以是,终端通过CSI-RS集合的时域特性进行区分第一CSI-RS集合和第二CSI-RS集合,例如:周期或半持续的CSI-RS所在集合用于预测模型训练,即为上述第二CSI-RS集合,非周期的CSI-RS所在集合用于信道预测,即上述第一CSI-RS集合。
在一些实施方式中,上述第一CSI-RS集合和第二CSI-RS集合为两个具备关联关系的CSI-RS集合,例如:网络侧指示终端具有关联关系的2个CSI-RS集合分别用于预测模型训练和信道预测。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集
合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址(Quasi co-location,QCL)的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
上述CSI报告配置可以是网络侧配置或者激活的CSI报告配置。CSI报告配置对应的CSI-RS集合可以是,CSI报告配置关联或者配置的CSI-RS集合。
例如:网络通过配置或者激活一个CSI报告配置,该CSI报告配置关联2个CSI-RS集合分别用于预测模型训练和信道预测,即上述第二CSI-RS集合和第一CSI-RS集合。
上述第一CSI报告配置和第二CSI报告配置可以是具备关联关系的2个CSI预先配置,例如:网络侧配置或者激活2个CSI报告配置,并通过信令指示这两个CSI报告配置具有关联关系,且每个CI报告配置关联或者配置了CSI-RS集合,则2个报告配置关联的2个CSI-RS集合分别用于预测模型训练和信道预测,即上述第二CSI-RS集合和第一CSI-RS集合。
上述具有相同TCI的CSI-RS集合可以是,两个CSI-RS集合中的CSI-RS均关联相同的TCI。例如:网络配置或者激活2个CSI报告配置,并通过信令指示这两个CSI报告配置具有关联关系,其中一个CSI报告配置(第一CSI报告配置或者第二CSI报告配置)关联了多个CSI-RS集合,另一个报告配置(第二CSI报告配置或者第一CSI报告配置)关联了1个CSI-RS集合,则终端认为第一CSI报告配置关联的多个CSI-RS集合中与第二CSI报告配置关联的CSI-RS集合具有相同TCI的CSI-RS集合,其与第二CSI报告配置关联的CSI-RS集合具有关联关系,进而确定上述第一CRM集合和第二CSI-RS集合。
上述具有相同QCL的CSI-RS集合可以是,两个CSI-RS集合中的CSI-RS均关联相同的QCL。
上述第一CSI-RS集合和所述第二CSI-RS集合为具有相同TCI或者QCL的两个CSI-RS集合可以是,在网络侧配置或者激活多个(大于2)CSI-RS集合的情况下,具有相同TCI或者QCL的2个CSI-RS集合分别用于预测模型训练和信道预测。
该实施方式中,可以实现基于CSI报告配置确定用于预测模型训练和信道预测的CSI-RS,且还可以实现将相同TCI或者QCL的CSI-RS作为用于预测模型训练和信道预测的CSI-RS,这样可以实现预测模型训练和信道预测采用相同TCI和QCL的CSI-RS,进而提高信道预测的准确性。
作为一种可选的实施方式,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
其中,上述第三CSI-RS与第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS可以是,第三CSI-RS与第一CSI-RS为同一个CSI-RS,该CSI-RS为周期或者半持续CSI-RS,即监控通过与预测相同的一个周期或者半持续的CSI-RS完成。
上述和/或表示如下至少一项:
第三CSI-RS与第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;
第三CSI-RS与第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;
第三CSI-RS、第二CSI-RS和第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
另外,第一CSI-RS、第二CSI-RS和第三CSI-RS之间的关系可以是网络侧指示,例如:网络侧向终端指示某一个CSI-RS除了用于预测模型训练和/或信道预测也用于监控,或者,上第一CSI-RS、第二CSI-RS和第三CSI-RS之间的关系也可以是通过默认规则确定的,例如:当配置一个CSI-RS时,终端默认该CSI-RS即用于预测模型训练也用于信道预测,还用于监控。
该实施方式中,由于第三CSI-RS与第二CSI-RS和/或第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS,这样可以节约CSI-RS的配置开销。
作为一种可选的实施方式,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
上述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS可以包括:
第一CSI-RS和第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS,第二CSI-RS不属于该CSI-RS集合;或者
第一CSI-RS、第二CSI-RS和第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS。
上述同一个CSI-RS集合包括两个CSI-RS子集可以是,同一个CSI-RS集合至少包括两个CSI-RS子集,例如:在第一CSI-RS、第二CSI-RS和第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS时,上述CSI-RS集合包括3个CSI-RS子集,这3个CSI-RS子集分别包括第一CSI-RS、第二CSI-RS和第三CSI-RS。
该实施方式中,可以实现第一CSI-RS和第三CSI-RS属于同一CSI-RS集合,这样可以节约CSI-RS集合配置开销。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置;和/或
所述两个CSI-RS子集通过如下至少一项进行划分:网络信令、默认规则、时域偏移。
上述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置可以是,第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置关联的时隙均大于或者大于等于CSI参考时域位置关联的时隙或者CSI报告时域位置关联的时隙,即终端不期望包括第三CSI-RS的CSI-RS子集内的CSI-RS的时域位置早于CSI参考时域位置或者CSI报告时域位置,或者终端不期望出现用于监控的第三
CSI-RS的时隙均小于CSI参考时隙或者CSI报告时隙,如果出现,终端不执行监控过程。
上述网络信令用于将上述CSI-RS集合进行划分,划分为多个CSI-RS子集,并显式指示用于监控的CSI-RS子集,以及还可以指示用于信道预测的CSI-RS子集。
上述默认规则可以是,默认用于监控的CSI-RS子集,例如:CSI-RS集合有两个子集时,第一个用于信道预测,第二个用于监控,CSI-RS集合有3个子集时,第一个用于预测模型训练,第二个用于信道预测,第三个用于监控。
上述时域偏移可以是,通过时域偏移的位置确定上述两个CSI-RS子集,例如:将CSI-RS关联的时隙大于CSI参考时隙或者CSI报告时隙时,将该CSI-RS确定用于监控预测性能的第三CSI-RS,进而确定第三CSI-RS所属的CSI-RS子集,以及将其余CSI-RS确定为用于信道预测的第一CSI-RS,进而确定第一CSI-RS所属的CSI-RS子集。
作为一种可选的实施方式,所述第一CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
上述第一CSI-RS和所述第三CSI-RS属于不同CSI-RS集合可以包括如下:
第一CSI-RS、第二CSI-RS和第三CSI-RS分别属于不同CSI-RS集合;或者
第一CSI-RS和第三CSI-RS属于不同CSI-RS集合,但第二CSI-RS所属的第二CSI-RS集合与第一CSI-RS集合或者第二CSI-RS集合相同,即第一CSI-RS、第二CSI-RS和第三CSI-RS关联2个CSI-RS集合。
上述网络信令可以显式指示其中多个CSI-RS集合中有一个CSI-RS集合中存在用于监控预测性能的CSI-RS,或者,显式指示包括第一CSI-RS的第一CSI-RS集合和包括第三CSI-RS的第三CSI-RS集合。
上述默认规则确定可以是,默认时域偏移较大的CSI-RS集合中存在用于监控预测性能的CSI-RS,或者,默认集合标识较小的CSI-RS集合中存在用于监控预测性能的CSI-RS。
上述时域偏移确定可以是,将时域偏移较大的CSI-RS集合,确定为上述第三CSI-RS所属的CSI-RS集合,例如:一个CSI-RS集合中,存在部分或者全部的CSI-RS关联的时隙大于CSI参考时隙或者CSI报告时隙,则终端认为该CSI-RS集合中存在用于监控的CSI-RS。
上述集合标识确定可以是,终端通过CSI-RS集合标识进行区分,例如:集合ID较小的CSI-RS集合中存在用于监控的CSI-RS,或者集合ID较大的中存在用于监控的CSI-RS。
上述时域特性确定可以是,终端通过CSI-RS集合的时域特性进行区分,例如:周期或半持续的CSI-RS所在集合中存在用于监控的CSI-RS,或者非周期的CSI-RS所在集合中存在用于监控的CSI-RS。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三
CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
该实施方式中,可以实现包括用于监控的CSI-RS的CSI-RS集合中还包括用于信道预测的CSI-RS,或者用于监控的CSI-RS和用于信道预测的CSI-RS为同一个CSI-RS,且该CSI-RS为周期或者半持续的CSI-RS,这样可以节约CSI-RS配置开销。
在一些实施方式中,上述第一CSI-RS集合和所述第三CSI-RS集合为具备关联关系的两个CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
其中,上述第一CSI-RS集合和第三CSI-RS集合的关联关系参见上述实施方式的第一CSI-RS集合和第二CSI-RS集合的关联关系相应描述,此处不作赘述。
作为一种可选的实施方式,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合、包括所述第二CSI-RS的第二CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
上述网络信令可以显式指示包括第一CSI-RS的第一CSI-RS集合、包括第二CSI-RS的第二CSI-RS集合和包括第三CSI-RS的第三CSI-RS集合中的至少一项。
上述默认规则确定可以是,默认时域偏移较大的CSI-RS集合中存在用于监控预测性能的CSI-RS,默认时域偏移最小的CSI-RS集合中存在用于预测模型训练的CSI-RS。
上述时域偏移确定可以是,将时域偏移较大的CSI-RS集合,确定为上述第三CSI-RS所属的CSI-RS集合,默认时域偏移较小或者最小的CSI-RS集合中存在用于预测模型训练的CSI-RS。
上述集合标识确定可以是,终端通过CSI-RS集合标识进行区分,例如:集合ID较小
的CSI-RS集合中存在用于监控的CSI-RS,或者集合ID较小或者最小CSI-RS集合中存在用于预测模型训练的CSI-RS。
上述时域特性确定可以是,终端通过CSI-RS集合的时域特性进行区分,例如:周期或半持续的CSI-RS所在集合中存在用于监控的CSI-RS,或者非周期的CSI-RS所在集合中存在用于预测模型训练的CSI-RS。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI的三个CSI-RS集合。
该实施方式中,可以实现网络侧配置或者激活一个CSI报告配置,该CSI报告配置关联3个CSI-RS集合分别用于预测模型训练、信道预测和监控,这样可以节约CSI报告配置开销。
该实施方式中,还可以实现在网络或者激活多个(大于3)CSI-RS集合时,具有相同TCI或者QCL的3个CSI-RS集合分别用于预测模型训练、信道预测和监控,这样可以使得终端基于相同TCI或者QCL的CSI-RS进行预测模型训练、信道预测和监控,以提高终端的预测性能。
作为一种可选的实施方式,在所述终端基于多个非周期CSI-RS预测CSI的情况下:
上行信道的时域偏移为相对于所述多个非周期CSI-RS的最后一个CSI-RS对应的时域位置的偏移,所述上行信道为用于承载所述CSI的上行信道;和/或
若所述多个非周期CSI-RS中有目标非周期CSI-RS,则所述终端确定所述目标非周期CSI-RS的发送时域资源为网络指示的所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源;其中,网络指示的所述目标非周期CSI-RS对应的时域资源为上行时域资源,或者,网络指示的所述目标非周期CSI-RS对应的时域资源与其他信号或者信道(其他signals/channel)发生碰撞。
上述最后一个CSI-RS表示多个非周期的CSI-RS中关联时隙最大的CSI-RS。
上述目标非周期CSI-RS对应的时域资源与其他信号或者信道发生碰撞可以是,目标非周期CSI-RS对应的时域资源与其他信号或者信道的资源存在重叠。
该实施方式中可以是,如果网络侧指示终端利用多个非周期的CSI-RS获取CSI,则网络侧指示或者终端默认承载该CSI的上行信道的时隙偏移为相对于多个非周期的CSI-RS的最后一个CSI-RS关联的时隙的时隙偏移。例如:网络侧通过DCI指示关联一个物理上行共享信道(Physical Uplink Shared Channel,PUSCH)的时隙偏移Y,则CSI报告的反馈时隙为n+Y,此时n对应的是多个非周期的CSI-RS中关联时隙最大的CSI-RS关联的时隙。
这样由于上行信道的时域偏移为相对于所述多个非周期CSI-RS的最后一个CSI-RS对应的时域位置的偏移,从而终端可以更好地上报CSI,以提高终端的CSI上报性能。
上述下行时域资源可以是下行符号,或者下行子时隙等。上述目标非周期CSI-RS对应的时域资源可以是,目标非周期CSI-RS关联的符号或者子时隙等。例如:网络侧指示终端利用多个非周期的CSI-RS获取CSI,如果网络侧指示的其中一个非周期的CSI-RS关联的符号为一个上行符号,则终端可以假设该CSI-RS的真实发送符号为网络指示的符号之前或者之后的第一个有效的下行符号。
在一些实施方式中,上述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源可以包括:
所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个满足CSI-RS图案(CSI-RS pattern)映射的下行时域资源;或者
所述目标非周期CSI-RS对应的时域资源之前或者之后的,且不与物理信道或信号发生碰撞的第一个有效下行时域资源。
其中,上述CSI-RS图案为上述目标非周期CSI-RS关联的图案。
上述第一个满足CSI-RS图案映射的下行时域资源可以是第一个满足CSI-RS图案映射的下行符号。
上述物理信道可以是物理上行共享信道(Physical Uplink Shared Channel,PUSCH)、物理下行共享信道(PhysicalDownlink Shared Channel,PDSCH)、物理下行控制信道(Physical Downlink Control Channel,PDCCH)、物理广播信道(physical broadcast channel,PBCH)等。
上述信号可以是其他CSI-RS或者其他信号。
上述不与物理信道或信号发生碰撞可以是,不与其他物理信道或信号出现时域碰撞的下行时域资源,例如:如果上述目标非周期CSI-RS的第一个有效下行符号与其他物理信道或信号出现时域碰撞情况,则其他物理信道或信号按照相同规则寻找其有效的下行符号,以避免目标非周期CSI-RS与其他CSI-RS出现时域碰撞。
另外,上述第一个有效下行时域资源可以为跨时隙的一个下行符号或者时隙。例如:在上述有效下行时域资源为符号的情况下,确定有效符号(valid symbol)的规则:假设配置的某个时隙上第s个symbol不能发送非周期信道状态信息参考信号(aperiodic CSI-RS,AP-CSI-RS),则有效的symbol是在【s-j~s+j】这个范围内去找,距离s最近的一个valid symbol,例如一个可以发送CSI-RS的下行符号(DL symbol)。进一步找的规则可以是,同时往前往后找,例如先找s-1和s+1,如果没有就继续找s-2,s+2,以此类推,如果某次,同时发现前后两个symbol都满足,就默认前面这个symbol或者后面的symbol为valid symol。进一步的限制,valid symbol和第s个symbol必须在同一个时隙内。
该实施方式中,由于终端确定上述目标非周期CSI-RS的真实发送时域资源,这样可以避免终端接收到上述目标非周期CSI-RS的情况,以提高终端接收CSI-RS的性能。
作为一种可选的实施方式,所述终端反馈预测的信道信息的第一个时域位置到任一
CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,
所述终端向网络侧设备发送第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
所述终端接收网络侧设备发送的第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
上述信道信息的第一个时域位置可以是,信道信息的起始时域位置。
上述信道信息关联的预测窗口可以是,信道状态信息报告(CSI reporting)窗口或者预编码矩阵关联的预测窗口。
上述预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔的关联关系可以是网络侧配置的或者协议定义的或者终端决定的。
上述时间间隔可以是时隙间隔或者符号间隔。
例如:CSI reporting窗口的起始slot到任一CSI-RS之间的时隙间隔,必须是相邻两个AP CSI-RS资源(AP CSI-RS resources)的间隔的整数倍。
该实施方式中,由于信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联,这样可以更加匹配终端预测算法的需求,从而提供更好的性能需求。
作为一种可选的实施方式,所述方法还包括:
所述终端接收网络侧设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
上述第三指示信息可以是DCI或者其他下行信息。
上述第一非周期参考信号资源和第二非周期参考信号资源可以是AP-CSI Resources,且可以包括一个或者多个参考信号资源,每个参考信号资源上可以传递CSI-RS。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
上述时域资源可以是时隙或者子时隙。
在一些实施方式中,上述K1、K2、M1和M2中的至少一项的取值可以是基于所述终端的能力和/或反馈需求确定的。这样可以使得第一非周期参考信号资源和第二非周期参考资源中的至少一项是与终端匹配的,进而提高终端接收CSI-RS信号的接收性能。在一些实施方式中,上述K1、K2、M1和M2中的至少一项的取值也可以是协议定义或者网络侧配置的。例如:终端上报能力,网络侧基于终端上报的能力确定上述述K1、K2、M1和M2中的至少一项的取值。
另外,上述M1和M2可以是相同的(或者默认是相同的),这样不需要别指示M1和M2,在一些实施方式中,M1和M2也可以不同。
在一些实施方式中,上述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。这样由于第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的,这样可以提高提高终端接收CSI-RS信号的接收性能。在一些实施方式中,上述第一非周期参考信号资源的最小频域带宽也可以协议定义或者网络侧配置的。
在一些实施方式中,上述第一非周期参考信号资源关联的报告配置(reporting config)配置可以为无(None)。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限。
其中,上述预设门限可以是基于终端能力上报确定,或者协议约定。
该实施方式中,由于第一非周期参考信号资源早于第二非周期参考信号资源,且第一非周期参考信号资源与第二非周期参考信号资源之间的间隔大于或者等于预设门限,这样终端基于训练完的预测模型进行信道预测,进而提高信道预测的准确性。
可选的,所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
可选的,预设门限可以是终端反馈的一个值,或者根据终端反馈的信息获取。
其中,上述关联关系可以是网络侧配置或者协议约定的。
例如:通过网络配置第一非周期参考信号资源关联到第二非周期参考信号资源,或者第二非周期参考信号资源关联到第一非周期参考信号资源。
这样由于第一非周期参考信号资源和第二非周期参考信号资源具备关联关系,这样可以通过一个非周期参考信号资源确定另一个非周期参考信号资源,进而可以节约配置开销。
在本申请实施例中,终端确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。这样可以实现通信设备之间传输的CSI-RS支持多种用途,从而提高通信设备之间的传输性能。
具体的,本申请实施例可以实现如下如下至少一项:
一个用于CSI预测的CSI-RS可能包括三个用途至少之一:预测模型训练、信道预测、监控预测性能;
如果预测模型训练和信道预测(或者信道预测和监控信道预测性能)通过一个周期或者半持续的CSI-RS完成,则网络侧向终端指示该CSI-RS即用于预测模型训练也用于信道预测(或者可以用于监控信道预测性能);
如果预测模型训练和信道预测(或者信道预测和监控信道预测性能)通通过多个CSI-RS,且多个CSI-RS关联或者配置在一个CSI-RS集合时,终端通过高层信令或者默认规则区分多个CSI-RS的功能;
如果预测模型训练和信道预测(或者信道预测和监控信道预测性能)通过多个CSI-RS,且多个CSI-RS关联或者配置在2个CSI-RS集合时,网络侧通过信令指示具有关联关系的2个CSI-RS集合;
如果预测模型训练和信道预测(或者信道预测和监控信道预测性能)通通过多个CSI-RS,且多个CSI-RS关联或者配置在2个CSI-RS集合时,终端通过高层信令或者默认规则区分CSI-RS集合的功能。
本申请实施例中,通过对CSI-RS(例如:CSI-RS)的功能进行划分为预测模型训练、信道预测和监控信道预测性能,并为多种功能的CSI-RS(例如:CSI-RS)建立了关联关系,使得终端和网络侧设备能够统一对于多个用于预测的CSI-RS(例如:CSI-RS)的理解,并通过引入用于预测模型训练与监控信道预测性能的CSI-RS(例如:CSI-RS),有效的提高终端预测性能。
请参见图3,图3是本申请实施例提供的另一种参考信号确定方法的流程图,如图3所示,包括以下步骤:
步骤301、网络侧设备向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
可选的,所述方法还包括:
所述网络侧设备接收所述终端发送的反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
所述终端预测信道的需求包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
可选的,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
可选的,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS
集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
可选的,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
可选的,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔
与多个CSI-RS之间的时间间隔关联;或者,
网络侧设备接收所述终端发送的第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
所述网络侧设备向终端发送第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
可选的,所述方法还包括:
网络侧设备向所述终端发送第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
可选的,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或
所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限;和/或
所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
需要说明的是,本实施例作为与图2所示的实施例中对应的网络侧设备的实施方式,其具体的实施方式可以参见图2所示的实施例的相关说明,以为避免重复说明,本实施例不再赘述。
请参见图4,图4是本申请实施例提供的一种参考信号确定装置的结构图,如图4所示,参考信号确定装置400包括:
确定模块401,用于确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合的时域特性为非周期的情况下:
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合中每个CSI-RS的时域偏移通过如下至少一项确定:
网络信令、默认规则。
可选的,所述装置还包括:
第一发送模块,用于向网络侧设备发送反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
所述终端预测信道的需求包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
可选的,在所述预测模型训练的资源未达到所述终端训练预测模型的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息;
或者,
在网络配置的预测信道的资源处于所述终端训练所述预测模型的训练期间的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息。
可选的,所述第一CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下,所述终端通过如下至少一项确定所述同一个CSI-RS:
网络信令、默认规则。
可选的,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
可选的,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
可选的,所述时域偏移较小是指CSI-RS子集内所有CSI-RS的时域偏移之和较小,或者,所述时域偏移较小的CSI-RS子集是指CSI-RS集合内最小时域偏移的CSI-RS所属的子集;
所述时域偏移较大是指CSI-RS子集内所有CSI-RS的时域偏移之和较大,或者,所述时域偏移较大的CSI-RS子集是指CSI-RS集合内最大时域偏移的CSI-RS所属的子集。
可选的,所述第一CSI-RS和所述第二CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第二CSI-RS的第二CSI-RS集合:
网络信令、时域偏移、集合标识、时域特性。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS
集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
可选的,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置;和/或
所述两个CSI-RS子集通过如下至少一项进行划分:网络信令、默认规则、时域偏移。
可选的,所述第一CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合、包括所述第二CSI-RS的第二CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
可选的,在所述终端基于多个非周期CSI-RS预测CSI的情况下:
上行信道的时域偏移为相对于所述多个非周期CSI-RS的最后一个CSI-RS对应的时域位置的偏移,所述上行信道为用于承载所述CSI的上行信道;和/或
若所述多个非周期CSI-RS中有目标非周期CSI-RS,则所述终端确定所述目标非周期CSI-RS的发送时域资源为网络指示的所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源;其中,网络指示的所述目标非周期CSI-RS对应的时域资源为上行时域资源,或者,网络指示的所述目标非周期CSI-RS对应的时域资源与其他信号或者信道发生碰撞。
可选的,所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源包括:
所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个满足CSI-RS图案映射的下行时域资源;或者
所述目标非周期CSI-RS对应的时域资源之前或者之后的,且不与物理信道或信号发生碰撞的第一个有效下行时域资源。
可选的,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,
所述装置还包括如下一项:
第二发送模块,用于向网络侧设备发送第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
第一接收模块,用于接收网络侧设备发送的第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
可选的,所述装置还包括:
第二接收模块,用于接收网络侧设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
可选的,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或
所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限;和/或
所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
上述参考信号确定装置可以提高通信设备之间的传输性能。
本申请实施例中的参考信号确定装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。例如:该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于本申请实施例所列举的终端的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的参考信号确定装置能够实现图2所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
请参见图5,图5是本申请实施例提供的一种参考信号确定装置的结构图,如图5所示,参考信号确定装置500包括:
第一发送模块501,用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
可选的,所述装置还包括:
第一接收模块,用于接收所述终端发送的反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
所述终端预测信道的需求包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
可选的,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
可选的,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
可选的,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集
合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
可选的,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,
所述装置还包括如下一项:
第二接收模块,用于接收所述终端发送的第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
第二发送模块,用于向终端发送第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
可选的,所述装置还包括:
第三发送模块,用于向所述终端发送第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
可选的,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或
所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门
限;和/或
所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
上述参考信号确定装置可以提高通信设备之间的传输性能。
本申请实施例中的参考信号确定装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端或网络侧设备。
本申请实施例提供的参考信号确定装置能够实现图3所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图6所示,本申请实施例还提供一种通信设备600,包括处理器601和存储器602,存储器602上存储有可在所述处理器601上运行的程序或指令,例如,该通信设备600为终端时,该程序或指令被处理器601执行时实现上述终端侧的参考信号确定方法实施例的各个步骤,且能达到相同的技术效果。该通信设备600为网络侧设备时,该程序或指令被处理器601执行时实现上述网络侧设备侧的参考信号确定方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种通信设备,包括处理器及通信接口,其中,所述处理器用于确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。该通信设备实施例与上述终端侧的参考信号确定方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中,且能达到相同的技术效果。
具体地,图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于:射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709以及处理器710等中的至少部分部件。
本领域技术人员可以理解,终端700还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器710逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元704可以包括图形处理单元(Graphics Processing Unit,GPU)7041和麦克风7042,图形处理单元7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072中的至少一种。触控面板7071,也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元701接收来自网络侧设备的下行数据后,可以传输给处理器710进行处理;另外,射频单元701可以向网络侧设备发送上行数据。通常,射频单元701包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器709可以包括易失性存储器或非易失性存储器,或者,存储器709可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器709包括但不限于这些和任意其它适合类型的存储器。
处理器710可包括一个或多个处理单元;可选的,处理器710集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器710中。
处理器710,用于确定第一CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三
CSI-RS中的至少两项属于不同CSI-RS集合。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合的时域特性为非周期的情况下:
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合中每个CSI-RS的时域偏移通过如下至少一项确定:
网络信令、默认规则。
可选的,射频单元701用于:向网络侧设备发送反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
所述终端预测信道的需求包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
可选的,在所述预测模型训练的资源未达到所述终端训练预测模型的需求的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息;
或者,
在网络配置的预测信道的资源处于所述终端训练所述预测模型的训练期间的情况下:
所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息。
可选的,所述第一CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下,所述终端通过如下至少一项确定所述同一个CSI-RS:
网络信令、默认规则。
可选的,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
可选的,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
可选的,所述第一CSI-RS和所述第二CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第二CSI-RS的第二CSI-RS集合:
网络信令、时域偏移、集合标识、时域特性。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
可选的,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置;和/或
所述两个CSI-RS子集通过如下至少一项进行划分:网络信令、默认规则、时域偏移。
可选的,所述第一CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:
所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合、包括所述第二CSI-RS的第二CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:
网络信令、默认规则、时域偏移、集合标识、时域特性。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
可选的,在所述终端基于多个非周期CSI-RS预测CSI的情况下:
上行信道的时域偏移为相对于所述多个非周期CSI-RS的最后一个CSI-RS对应的时域位置的偏移,所述上行信道为用于承载所述CSI的上行信道;和/或
若所述多个非周期CSI-RS中有目标非周期CSI-RS,则所述终端确定所述目标非周期CSI-RS的发送时域资源为网络指示的所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源;其中,网络指示的所述目标非周期CSI-RS对应的时域资
源为上行时域资源,或者,网络指示的所述目标非周期CSI-RS对应的时域资源与其他信号或者信道发生碰撞。
可选的,所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源包括:
所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个满足CSI-RS图案映射的下行时域资源;或者
所述目标非周期CSI-RS对应的时域资源之前或者之后的,且不与物理信道或信号发生碰撞的第一个有效下行时域资源。
可选的,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,
射频单元701还用于如下一项:
向网络侧设备发送第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
接收网络侧设备发送的第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
可选的,射频单元701还用于:
接收网络侧设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
可选的,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或
所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限;和/或
所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
上述终端可以通信设备之间的传输性能。
本申请实施例还提供一种通信设备,包括处理器及通信接口,其中,所述通信接口用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。该通信设备实施例与上述网络侧设备侧的多普勒测量方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图8所示,该网络侧设备800包括:天线801、射频装置802、基带装置803、处理器804和存储器805。天线801与射频装置802连接。在上行方向上,射频装置802通过天线801接收信息,将接收的信息发送给基带装置803进行处理。在下行方向上,基带装置803对要发送的信息进行处理,并发送给射频装置802,射频装置802对收到的信息进行处理后经过天线801发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置803中实现,该基带装置803包括基带处理器。
基带装置803例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图8所示,其中一个芯片例如为基带处理器,通过总线接口与存储器805连接,以调用存储器805中的程序,执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口806,该接口例如为通用公共无线接口(common public radio interface,CPRI)。
具体地,本申请实施例的网络侧设备800还包括:存储在存储器805上并可在处理器804上运行的指令或程序,处理器804调用存储器805中的指令或程序执行图5所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
其中,射频装置802,用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;
或者,
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
可选的,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同
一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
可选的,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:
所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;
所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
可选的,射频装置802还用于:
接收所述终端发送的反馈信息,所述反馈信息用于指示如下至少一项:
所述终端训练预测模型的需求;
所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括如下至少一项:
训练所述预测模型的所需测量时机数量;
训练所述预测模型的所需时域资源数量;
训练所述预测模型的所需时域密度;
训练所述预测模型的所需CSI-RS数量;
所述终端预测信道的需求包括如下至少一项:
预测信道的所需测量时机数量;
预测信道的所需时域资源数量;
预测信道的所需时域密度;
预测信道的所需CSI-RS数量。
可选的,所述终端训练预测模型的需求包括如下至少一项:
在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;
在至少一种时域信道特性下,所述终端训练所述预测模型的需求;
所述终端预测信道的需求包括:
在至少一个CSI-RS配置下,所述终端预测信道的需求;
在至少一种时域信道特性下,所述终端预测信道的需求。
可选的,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;
所述终端预测信道的需求包括:所述终端预测信道的最小需求。
可选的,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者
所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
可选的,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
可选的,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,
所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,
所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,
所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
可选的,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集
合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,
所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
可选的,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:
所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
可选的,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置。
可选的,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者
所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
可选的,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,
所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,
所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
可选的,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,
所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或
者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
可选的,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,
射频装置802还用于还包括如下一项:
接收所述终端发送的第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者
向终端发送第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
可选的,射频装置802还用于:
向所述终端发送第三指示信息,所述第三指示信息用于指示如下至少一项:
第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;
第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
可选的,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或
所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
可选的,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或
所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
可选的,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限;和/或
所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
上述网络侧设备可以提高通信设备之间的传输性能。
本申请实施例还提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现本申请实施例提供的上述参考信号确定方法的步骤。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述参考信号确定方法实施例的
各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述参考信号确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种参考信号确定系统,包括:终端及网络侧设备,所述终端可用于执行如本申请实施例提供的终端侧的参考信号确定方法的步骤,所述网络侧设备可用于执行如本申请实施例提供的网络侧设备侧的参考信号确定方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (40)
- 一种参考信号确定方法,包括:终端确定第一信道状态信息参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
- 如权利要求1所述的方法,其中,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
- 如权利要求2所述的方法,其中,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
- 如权利要求3所述的方法,其中,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:所述同一个CSI-RS集合为网络配置或者激活的周期CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的半持续CSI-RS集合,或者,所述同一个CSI-RS集合为网络配置或者激活的非周期CSI-RS集合;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备相同的传输配置指示TCI信息或者准共址信息;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的频域密度;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的带宽;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项具备不同的端口配置。
- 如权利要求3所述的方法,其中,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS的情况下,存在如下至少一项特征:所述第二CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第三CSI-RS属于另一个CSI-RS集合,所述第三CSI-RS属于一个CSI-RS集合,所述第一CSI-RS和所述第二CSI-RS属于另一个CSI-RS集合,或者,所述第一CSI-RS、所述第一CSI-RS和所述第三CSI-RS分别属于不同CSI-RS集合;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的时域特性;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的频域密度;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的带宽;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的多个CSI-RS集合中,不同CSI-RS集合具备不同的端口配置。
- 如权利要求3至5中任一项所述的方法,其中,在所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合的时域特性为非周期的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS关联的CSI-RS集合中每个CSI-RS的时域偏移通过如下至少一项确定:网络信令、默认规则。
- 如权利要求1至5中任一项所述的方法,其中,所述方法还包括:所述终端向网络侧设备发送反馈信息,所述反馈信息用于指示如下至少一项:所述终端训练预测模型的需求;所述终端预测信道的需求。
- 如权利要求7所述的方法,其中,所述终端训练预测模型的需求包括如下至少一项:训练所述预测模型的所需测量时机数量;训练所述预测模型的所需时域资源数量;训练所述预测模型的所需时域密度;训练所述预测模型的所需CSI-RS数量;所述终端预测信道的需求包括如下至少一项:预测信道的所需测量时机数量;预测信道的所需时域资源数量;预测信道的所需时域密度;预测信道的所需CSI-RS数量。
- 如权利要求7所述的方法,其中,所述终端训练预测模型的需求包括如下至少一项:在至少一个CSI-RS配置下,所述终端训练所述预测模型的需求;在至少一种时域信道特性下,所述终端训练所述预测模型的需求;所述终端预测信道的需求包括:在至少一个CSI-RS配置下,所述终端预测信道的需求;在至少一种时域信道特性下,所述终端预测信道的需求。
- 如权利要求7所述的方法,其中,所述终端训练预测模型的需求包括:所述终端训练预测模型的最小需求;所述终端预测信道的需求包括:所述终端预测信道的最小需求。
- 如权利要求7所述的方法,其中,在所述预测模型训练的资源未达到所述终端训练预测模型的需求的情况下:所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息;或者,在网络配置的预测信道的资源处于所述终端训练所述预测模型的训练期间的情况下:所述终端向所述网络侧设备上报未基于所述预测模型预测的信道信息,或者,终端不上报信道信息。
- 如权利要求2所述的方法,其中,所述第一CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下,所述终端通过如下至少一项确定所述同一个CSI-RS:网络信令、默认规则。
- 如权利要求3所述的方法,其中,所述第一CSI-RS和所述第二CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS包括所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS包括所述第二CSI-RS;或者所述同一个CSI-RS集合中的N个CSI-RS为所述第一CSI-RS,其余CSI-RS为所述第二CSI-RS,N为时域单元数量。
- 如权利要求13所述的方法,其中,所述N个CSI-RS的时域偏移大于所述其余CSI-RS的时域偏移。
- 如权利要求13所述的方法,其中,所述第二CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和小于第一CSI-RS对应的CSI-RS子集中所有CSI-RS的时域偏移之和;或,所述第二CSI-RS对应的CSI-RS子集中每个CSI-RS的时域偏移均小于第一CSI-RS对应的CSI-RS子集中各个CSI-RS的时域偏移;或,所述第二CSI-RS对应的CSI-RS子集为时域偏移最小的CSI-RS所属的子集;或,所述第一CSI-RS对应的CSI-RS子集为时域偏移最大的CSI-RS所属的子集。
- 如权利要求3所述的方法,其中,所述第一CSI-RS和所述第二CSI-RS属于不同CSI-RS集合的情况下:所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述 第二CSI-RS的第二CSI-RS集合:网络信令、时域偏移、集合标识、时域特性。
- 如权利要求16所述的方法,其中,所述第一CSI-RS集合和所述第二CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,所述第一CSI-RS集合和所述第二CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第二CSI-RS集合为第二CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第二CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第二CSI报告配置对应多个CSI-RS集合的情况下,所述第二CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者准共址QCL的CSI-RS集合;或者,所述第一CSI-RS集合和所述第二CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
- 如权利要求3所述的方法,其中,所述第三CSI-RS与所述第一CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS;和/或,所述第三CSI-RS与所述第二CSI-RS为同一个周期CSI-RS或者同一个半持续CSI-RS。
- 如权利要求3所述的方法,其中,所述第一CSI-RS和所述第三CSI-RS属于同一CSI-RS集合中的不同CSI-RS的情况下:所述同一个CSI-RS集合包括两个CSI-RS子集,所述两个CSI-RS子集中一个CSI-RS子集内的CSI-RS为所述第一CSI-RS,另一个CSI-RS子集内的CSI-RS为所述第三CSI-RS。
- 如权利要求19所述的方法,其中,所述第三CSI-RS关联的CSI-RS子集内的CSI-RS的时域位置均晚于或者等于CSI参考时域位置或者CSI报告时域位置;和/或所述两个CSI-RS子集通过如下至少一项进行划分:网络信令、默认规则、时域偏移。
- 如权利要求3所述的方法,其中,所述第一CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:网络信令、默认规则、时域偏移、集合标识、时域特性。
- 如权利要求21所述的方法,其中,在包括所述第三CSI-RS集合还包括所述第二CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合;或者所述第三CSI-RS和所述第二CSI-RS为同一个CSI-RS的情况下:所述第三CSI-RS集合为周期或者半持续CSI-RS集合。
- 如权利要求22所述的方法,其中,所述第一CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的两个CSI-RS集合;或者,所述第一CSI-RS集合和所述第三CSI-RS集合为两个CSI报告配置对应的两个CSI-RS集合,所述两个CSI报告配置具有关联关系;或者,所述第一CSI-RS集合为第一CSI报告配置对应的CSI-RS集合,所述第三CSI-RS集合为第三CSI报告配置对应的CSI-RS集合;其中,在所述第一CSI报告配置对应多个CSI-RS集合的情况下,所述第一CSI-RS集合为所述多个CSI-RS集合中与所述第三CSI-RS集合具有相同TCI的CSI-RS集合;或者,在所述第三CSI报告配置对应多个CSI-RS集合的情况下,所述第三CSI-RS集合为所述多个CSI-RS集合中与所述第一CSI-RS集合具有相同TCI或者QCL的CSI-RS集合;或者,所述第一CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或者QCL的两个CSI-RS集合。
- 如权利要求3所述的方法,其中,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS属于不同CSI-RS集合的情况下:所述终端通过如下至少一项确定包括所述第一CSI-RS的第一CSI-RS集合、包括所述第二CSI-RS的第二CSI-RS集合和包括所述第三CSI-RS的第三CSI-RS集合:网络信令、默认规则、时域偏移、集合标识、时域特性。
- 如权利要求24所述的方法,其中,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为同一信道状态信息CSI报告配置对应的三个CSI-RS集合;或者,所述第一CSI-RS集合、所述第二CSI-RS集合和所述第三CSI-RS集合为网络配置或者激活的多个CSI-RS集合中具有相同TCI或QCL的三个CSI-RS集合。
- 如权要求1至5中任一项所述的方法,其中,在所述终端基于多个非周期CSI-RS预测CSI的情况下:上行信道的时域偏移为相对于所述多个非周期CSI-RS的最后一个CSI-RS对应的时域位置的偏移,所述上行信道为用于承载所述CSI的上行信道;和/或若所述多个非周期CSI-RS中有目标非周期CSI-RS,则所述终端确定所述目标非周期CSI-RS的发送时域资源为网络指示的所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源;其中,网络指示的所述目标非周期CSI-RS对应的时域资源为上行时域资源,或者,网络指示的所述目标非周期CSI-RS对应的时域资源与其他信号或者信道发生碰撞。
- 如权要求26所述的方法,其中,所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个有效下行时域资源包括:所述目标非周期CSI-RS对应的时域资源之前或者之后的第一个满足CSI-RS图案映射的下行时域资源;或者所述目标非周期CSI-RS对应的时域资源之前或者之后的,且不与物理信道或信号发生碰撞的第一个有效下行时域资源。
- 如权要求1至5中任一项所述的方法,其中,所述终端反馈预测的信道信息的第一个时域位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者,所述终端向网络侧设备发送第一指示信息,所述第一指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联;或者所述终端接收网络侧设备发送的第二指示信息,所述第二指示信息用于指示:信道信息关联的预测窗口的起始位置到任一CSI-RS的时间间隔与多个CSI-RS之间的时间间隔关联。
- 如权要求1至5中任一项所述的方法,其中,所述方法还包括:所述终端接收网络侧设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:第一非周期参考信号资源用于如下至少一项:所述终端训练所述预测模型和预测所述终端的预测信道性能,所述第一非周期参考信号资源为用于传输所述第二CSI-RS和所述第三CSI-RS中的至少一项的资源;第二非周期参考信号资源用于如下至少一项:所述终端预测信道和所述终端训练所述预测模型,所述第二非周期参考信号资源为用于传输所述第一CSI-RS和所述第二CSI-RS中的至少一项的资源。
- 如权利要求29所述的方法,其中,所述第一非周期参考信号资源包括K1个参考信号资源,且相邻两个参考信号之间间隔M1个时域资源;和/或所述第二非周期参考信号资源包括K2个参考信号资源,且相邻两个参考信号之间间隔M2个时域资源。
- 如权利要求30所述的方法,其中,所述K1、K2、M1和M2中的至少一项的取值是基于所述终端的能力和/或反馈需求确定的;和/或所述第一非周期参考信号资源的最小频域带宽是基于所述终端的能力确定的。
- 如权利要求29所述的方法,其中,所述第一非周期参考信号资源早于所述第二非周期参考信号资源,且所述第一非周期参考信号资源与所述第二非周期参考信号资源之间的间隔大于或者等于预设门限;和/或所述第一非周期参考信号资源和所述第二非周期参考信号资源具备关联关系。
- 一种参考信号确定方法,包括:网络侧设备向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于所述终端训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
- 如权利要求33所述的方法,其中,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号;或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS。
- 如权利要求34所述的方法,其中,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为同一个CSI-RS在不同测量时机的信号的情况下:所述同一个CSI-RS为网络配置或者激活的周期CSI-RS,或者,所述同一个CSI-RS为网络配置或者激活的半持续CSI-RS,或者,所述同一个CSI-RS为网络配置的重复发送的非周期CSI-RS;所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项为不同CSI-RS的情况下:所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于同一CSI-RS集合中的不同CSI-RS,或者,所述第一CSI-RS、所述第二CSI-RS和所述第三CSI-RS中的至少两项属于不同CSI-RS集合。
- 一种参考信号确定装置,包括:确定模块,用于确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于终端训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
- 一种参考信号确定装置,包括:第一发送模块,用于向终端发送网络信令,所述网络信令用于终端确定第一信道测量参考信号CSI-RS、第二CSI-RS和第三CSI-RS中的至少一项,其中,所述第一CSI-RS用于信道预测,所述第二CSI-RS用于终端训练预测模型,所述第三CSI-RS用于监控所述终端的信道预测性能。
- 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,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32任一项所述的参考信号确定方法的步骤。
- 一种网络侧设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求33至35任一项所述的参考信号确定方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至32任一项所述的参考信号确定方法的步骤,或者,所述程序或指令被处理器执行时实现如权利要求33至35任一项所述的参考信号确定方法的步骤。
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| US20210351885A1 (en) * | 2019-04-16 | 2021-11-11 | Samsung Electronics Co., Ltd. | Method and apparatus for reporting channel state information |
| CN114287153A (zh) * | 2019-08-30 | 2022-04-05 | 华为技术有限公司 | 参考信令开销减少装置和方法 |
| US20220329305A1 (en) * | 2019-12-31 | 2022-10-13 | Huawei Technologies Co, Ltd. | Channel information feedback method and communication apparatus |
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| US20210351885A1 (en) * | 2019-04-16 | 2021-11-11 | Samsung Electronics Co., Ltd. | Method and apparatus for reporting channel state information |
| CN114287153A (zh) * | 2019-08-30 | 2022-04-05 | 华为技术有限公司 | 参考信令开销减少装置和方法 |
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