WO2022028549A1 - 信道状态信息反馈方法、装置、设备和存储介质 - Google Patents

信道状态信息反馈方法、装置、设备和存储介质 Download PDF

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Publication number
WO2022028549A1
WO2022028549A1 PCT/CN2021/110994 CN2021110994W WO2022028549A1 WO 2022028549 A1 WO2022028549 A1 WO 2022028549A1 CN 2021110994 W CN2021110994 W CN 2021110994W WO 2022028549 A1 WO2022028549 A1 WO 2022028549A1
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Prior art keywords
state information
channel state
csi
csi feedback
dci
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PCT/CN2021/110994
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English (en)
French (fr)
Inventor
张晨晨
刘星
郝鹏
魏兴光
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US18/040,891 priority Critical patent/US20230308153A1/en
Priority to JP2023508610A priority patent/JP2023537378A/ja
Priority to EP21852155.7A priority patent/EP4195538A1/en
Publication of WO2022028549A1 publication Critical patent/WO2022028549A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the field of communication technologies, for example, to a channel state information feedback method, apparatus, device, and storage medium.
  • the base station In the field of communications, for broadcast multicast services, the base station often needs to send a Physical Downlink Shared Channel (PDSCH) to a group of users.
  • PDSCH Physical Downlink Shared Channel
  • the base station In order to ensure the reliability of transmission, the base station needs to refer to the channel state information (Channel State Information, CSI) feedback of a group of users, so as to obtain a link adaptation effect suitable for a group of users.
  • CSI Channel State Information
  • the base station needs to determine several transmission attributes for a group of users according to the channel state information fed back by each user, such as Modulation and Coding Scheme (MCS), precoding information, layer information and ports information, etc.
  • MCS Modulation and Coding Scheme
  • the channel state information fed back by the terminal to the base station may be relatively small, which is not enough to support the base station to make scheduling based on the feedback of a group of users , in order to adapt to multicast and broadcast services, it is necessary to enhance the user's channel state information measurement and feedback mechanism, so that a group of users can feed back more abundant information to the base station and improve the accuracy of the scheduling decision made by the base station based on a group of users .
  • Embodiments of the present application provide a channel state information feedback method, apparatus, device, and storage medium, so as to realize channel state information feedback, enrich feedback content, enhance channel state information measurement, and improve the accuracy of base station scheduling decisions.
  • the embodiment of the present application provides a channel state feedback method, and the method includes:
  • the embodiment of the present application also provides a channel state information feedback device, and the device includes:
  • an information measurement module for measuring channel state information CSI
  • a feedback sending module configured to send the CSI feedback corresponding to the parameter set according to the channel state information.
  • the embodiment of the present application also provides a device, the device includes:
  • processors one or more processors
  • memory for storing one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the channel state information feedback method described in any one of the embodiments of this application.
  • An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the channel state information feedback method described in any one of the embodiments of the present application.
  • the terminal measures the channel state information according to the channel state information parameter set, and then feeds back the acquired channel state information to the base station, so as to realize the feedback of the channel state information.
  • the channel state information parameter set is used to enrich the feedback content and enhance the channel state. The measurement of state information improves the accuracy of base station scheduling decisions.
  • FIG. 1 is a flowchart of a method for feeding back channel state information provided by an embodiment of the present application
  • FIG. 2 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of a channel state information feedback method provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 9 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 10 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 11 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a channel state information feedback device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • aperiodic CSI feedback it is triggered by the PDCCH that schedules uplink data.
  • the triggered aperiodic CSI feedback and uplink data are both carried in the uplink physical shared channel (Physical Uplink Shared Channel, PUSCH). Therefore, it can be considered that aperiodic CSI feedback is transmitted.
  • the time-frequency resources are indicated by the Time Domain Resource Allocation (TDRA) domain and the Frequency Domain Resource Allocation (FDRA) domain in the DCI for scheduling uplink data.
  • TDRA Time Domain Resource Allocation
  • FDRA Frequency Domain Resource Allocation
  • the terminal feeds back in PUCCH, and the base station will semi-statically configure PUCCH resources for periodic CSI feedback through Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • For semi-persistent CSI feedback there are two bearer modes: one is the semi-persistent CSI feedback activated and deactivated by the Medium Access Control-Control Element (MAC CE), which is carried on PUCCH; One is activated and deactivated by the PDCCH, and is carried on the PUSCH scheduled by the PDCCH.
  • the bearing resources of the former mode are similar to periodic CSI feedback, and are borne on PUCCH resources semi-statically configured by the base station.
  • the bearing source of the latter mode is similar to the aperiodic CSI feedback, and is borne on the PUSCH resources indicated by the TDRA field and the FDRA field of the PDCCH.
  • the base station can only perform link adaptation in a conservative manner.
  • the base station will configure many sub-signals related to the channel state information report CSI Report in the RRC signaling channel state information-report configuration CSI-ReportConfig, as well as the reference signal (Reference Signal, RS) resource configuration for measurement.
  • CSI Report in the RRC signaling channel state information-report configuration CSI-ReportConfig, as well as the reference signal (Reference Signal, RS) resource configuration for measurement.
  • RS Reference Signal
  • the RS resource configuration can include one or more RS resource configuration sets RS, a) for the A-CSI feedback that needs to be triggered by the DCI sent by the base station, the CSI feedback field of the DCI will indicate a trigger state trigger state, the The trigger state will be associated with one or more channel state information-associated report configuration information CSI-AssociatedReportConfigInfo, each CSI-AssociatedReportConfigInfo will indicate which RS resource configuration set in the RS resource configuration is based on the associated CSI Report to measure, and indicate the Beam information used by each RS resource in the RS configuration set.
  • CSI-AssociatedReportConfigInfo each CSI-AssociatedReportConfigInfo will indicate which RS resource configuration set in the RS resource configuration is based on the associated CSI Report to measure, and indicate the Beam information used by each RS resource in the RS configuration set.
  • the RS resource configuration configured in the CSI-ReportConfig for measurement can only contain 1 RS resource configuration set.
  • the CSI Request field of the DCI will indicate a trigger state, and the trigger state is one CSI-ReportConfig.
  • the base station does not need to send a trigger indication, and the UE will perform P-CSI feedback as scheduled according to the cycle and feedback resources configured in the relevant CSI-ReportConfig.
  • the feedback format corresponding to the CSI Report can be configured through the sub-signaling report quantity reportQuantity of the RRC signaling CSI-ReportConfig, which specifically includes the following feedback formats: None, cri-RI-PMI-CQI, cri-RI-LI- PMI-CQI, cri-RI-i1, cri-RI-i1-CQI, cri-RI-CQI, cri-RSRP, and ssb-Index-RSRP.
  • the feedback format specifies which channel state information should be included in the corresponding CSI Report. How the terminal feeds back information more suitable for multicast broadcast transmission adaptive link to the base station.
  • FIG. 1 is a flowchart of a method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application can be applied to a situation in which a terminal feeds back channel state information in multicast broadcast transmission.
  • the state information feedback device is implemented.
  • the device can be implemented in software and/or hardware.
  • the device is generally integrated in a terminal.
  • the method provided by the embodiment of the present application specifically includes the following steps:
  • Step 100 Measure channel state information CSI.
  • the terminal can obtain the channel state information CSI by measuring. It can be understood that the channel state information CSI includes at least one type of channel state information, and the values fed back for each state information in the channel state information may include one or more values.
  • Step 110 Send the CSI feedback corresponding to the channel state information parameter set.
  • the channel state information parameter set may be used to indicate the set of channel state information that the terminal needs to feed back, and may indicate the type of feedback information, and the channel state information parameter set may include one or more pieces of channel state information, for example, a channel quality indicator (Channel- Quality Indicator, CQI), precoding matrix indicator (Precoding matrix Indicator, PMI), and layer indicator (Rank Indicator, RI), etc.
  • CQI Channel- Quality Indicator
  • PMI precoding matrix indicator
  • RI layer indicator
  • the terminal can feed back the acquired channel state information CSI to the base station, so that the base station can make a scheduling policy for a group of users according to the fed back CSI.
  • the terminal measures the channel state information, and then feeds back the obtained channel state information to the base station, so as to realize the feedback of the channel state information.
  • the accuracy of the scheduling decision of the base station under the broadcast multicast service is the accuracy of the scheduling decision of the base station under the broadcast multicast service.
  • FIG. 2 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the above-mentioned embodiment. Referring to the figure, the method provided by the embodiment of the present application specifically includes the following steps :
  • Step 200 Measure channel state information CSI.
  • Step 210 Determine the CSI feedback corresponding to the channel state information parameter set according to the setting conditions.
  • the setting conditions may be detected at the terminal, and the number of feedback values for the channel state information parameter set may be determined according to different detected conditions.
  • the base station indicates the number of CSI feedback parameters to the terminal.
  • the terminal may extract the value in the CSI feedback number parameter as the feedback number corresponding to the set of channel state information parameters that need to be fed back in the CSI feedback.
  • Step 220 Send the CSI feedback corresponding to the channel state information parameter set.
  • the setting conditions include at least one of the following:
  • the configuration situation of the feedback number parameter may be a situation in which the feedback number corresponding to the channel state information parameter set is determined by means of whether to configure the feedback number parameter.
  • the feedback number parameter corresponds to the feedback number of the channel state information parameter set.
  • the scrambling situation of receiving the associated downlink control information DCI may be the scrambling situation of the base station sending the DCI to the terminal, because the scrambling method may include the Cell-Radio Network Temporary Identifier (C-RNTI), the configured scheduling RNTI (Configured Scheduling RNTI, CS-RNTI) or Modulation and Coding Scheme-Cell-RNTI (Modulcation and Coding Scheme-Cell-RNTI, MCS-C-RNTI), etc., different scrambling situations can be used to represent the corresponding channel state information parameter sets.
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the configured scheduling RNTI Configured Scheduling RNTI, CS-RNTI
  • Modulation and Coding Scheme-Cell-RNTI
  • the scheduling data type identifier in the associated DCI may be the scheduling data type identifier in the DCI received by the terminal, for example, the feedback quantities of the channel state information parameter sets corresponding to the unicast data type and the multicast data type may be different.
  • the receiving associated DCI format may be the data format of the DCI received by the terminal.
  • the time-frequency domain resources associated with receiving the DCI may be time-domain resources or frequency-domain resources occupied by the DCI received by the terminal, and different time-frequency domain resources may correspond to different channel state information parameter sets.
  • the received CSI feedback configuration which can be two CSI configurations with the same content but different indexes are received, or there are multiple CSI feedback configurations with the same preset content, and the preset content can be the common content in the CSI feedback configuration.
  • the current terminal determines that the above situation occurs, it may determine that the feedback quantity of the channel state information parameter set is a specific quantity.
  • FIG. 3 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment of the above-mentioned embodiment. Referring to FIG. 3 , the method provided by the embodiment of the present application specifically includes the following: step:
  • Step 300 Measure channel state information CSI.
  • Step 310 Determine the CSI feedback corresponding to the channel state information parameter set according to the setting conditions, the CSI feedback includes at least one CSI report report, and the CSI feedback number parameter of the CSI feedback is configured through RRC signaling in the radio resource control layer.
  • the CSI feedback may include one or more CSI reports, where the CSI report may be used to feed back channel state information, and the CSI report includes the value fed back for the channel state information parameter set, and the number of CSI feedback parameters may be used in the CSI report. It is determined that the parameter of the number of CSI feedbacks may be configured through RRC signaling.
  • the CSI feedback number parameter of the CSI feedback is configured for a specific CSI report, or the CSI feedback number parameter is configured for all CSI reports.
  • one or more CSI reports may be included in the CSI feedback, the number of feedback channel state information may be set by the CSI feedback number parameter, and the number of channel state information parameter sets that may be set by the CSI feedback number parameter may be for CSI feedback.
  • One or several specific CSI report settings in the CSI report can also be for all CSI report settings in the CSI feedback.
  • Step 320 Send the CSI feedback corresponding to the channel state information parameter set.
  • FIG. 4 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the above-mentioned embodiment of the application.
  • the channel state information parameter set includes a channel state information. Refer to Fig. 4, the method provided by the embodiment of the present application comprises the following steps:
  • Step 400 Determine the CSI feedback corresponding to the channel state information parameter set according to the setting conditions, where the channel state information parameter set includes one channel state information, and the channel state information is based on system predefined configuration and/or RRC signaling configuration.
  • the channel state information parameter set includes one channel state information
  • the terminal may determine the feedback quantity of the channel state information in combination with the setting conditions.
  • one channel state information included in the channel state information parameter set may be configured in a system predefined manner or configured by RRC signaling.
  • Step 410 Feed back a set of optimal values for the channel state information parameter set when the CSI feedback number parameter of the CSI feedback indicates that the channel state information parameter set feeds back a set of values.
  • the CSI feedback includes a set of channel state information values
  • the optimal value can be selected from the multiple sets of values determined in the CSI measurement process A set of values of , as the value of CSI feedback for the channel state information parameter set, where optimal may refer to the value of channel state information reflecting the optimal channel quality or channel throughput, which may be specifically included in a certain One or more of the optimal modulation order, coding rate and transmission block size that can be achieved under the condition of bit error rate.
  • Step 420 Send the CSI feedback corresponding to the channel state information parameter set.
  • the associated DCI in the CSI feedback includes a DCI for triggering the CSI feedback and/or a DCI for scheduling data transmission.
  • the embodiment of the present application is an embodiment based on the above-mentioned embodiment of the application.
  • the channel state information parameter set includes a plurality of channel state information. Referring to FIG. 5, the method provided by the embodiment of the present application includes the following steps:
  • Step 500 Measure channel state information CSI.
  • Step 510 Determine the CSI feedback corresponding to the channel state information parameter set according to the setting conditions, the CSI feedback number parameter of the CSI feedback indicates that the channel state information parameter set feedback at least two sets of values, and the channel state information parameter set includes at least two channel state When there is a dependency relationship between the values of the channel state information, the value of the dependent channel state information is determined based on at least two values of the corresponding dependent channel state information.
  • the channel state information parameter set includes a plurality of channel state information, and it is determined that at least two sets of values are fed back for the channel state information parameter set, when one of the plurality of channel state information included in the channel state information parameter set is
  • the value of the dependent channel state information needs to be determined by multiple values of the corresponding dependent channel state information.
  • the determination of the value of the channel state information parameter 1 depends on the value of the channel state information parameter 2.
  • the terminal must feed back several different values for the channel state information parameter 2, and obtain the value of the channel state information parameter 1 under each channel state information parameter 2 value, so that the terminal obtains multiple sets of ⁇ channel state information parameter 1 , the value of the channel state information parameter 2 ⁇ .
  • Step 520 In the case where the CSI feedback number parameter of the CSI feedback indicates that the channel state information parameter set feeds back at least two groups of values, feedback the optimal value of the preset number of groups for the channel state information parameter set, wherein , the preset number of groups is a positive integer greater than 1, and the preset number of groups is predefined by the system or configured through the CSI feedback number parameter.
  • the channel state information acquired by the sounding may be sorted, and the optimal values of the multiple groups of channel state information may be selected for feedback, wherein,
  • the number of feedback groups can be predefined by the system or configured through the CSI feedback number parameter.
  • Optimal may refer to the value of the channel state information reflecting the optimal channel quality or channel throughput, and may specifically be the corresponding modulation order, coding rate and transmission block size under the condition of a preset bit error rate.
  • Step 530 Send the CSI feedback corresponding to the channel state information parameter set.
  • the optimum includes at least one of the following: a corresponding modulation order, a coding rate and a transmission block size under a preset bit error rate condition.
  • FIG. 6 is a flowchart of a method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the embodiment of the above application. Referring to FIG. 6 , the method provided by the embodiment of the present application specifically includes the following: step:
  • Step 600 Measure channel state information CSI.
  • Step 610 Feed back a set of values for the channel state information parameter set when the RNTI temporary identifier of the wireless network associated with the scrambled DCI is the first type RNTI.
  • the terminal can judge the type of the Radio Network Temporary Identifier (RNTI) of the received scrambled-associated DCI.
  • RNTI Radio Network Temporary Identifier
  • the RNTI of the DCI is the first type of RNTI, it can The state information parameter set feeds back a set of values.
  • Step 620 Feed back the value of the preset number of groups for the channel state information parameter set when the wireless network temporary identifier RNTI associated with the scrambled DCI is the second type RNTI.
  • the terminal may judge the RNTI type of the received scramble-related DCI, and when the RNTI of the DCI is the second type RNTI, it may feed back the value of the preset number of groups for the channel state information parameter set, where the preset The number of groups can be predefined by the system or configured through the CSI feedback number parameter.
  • Step 630 Send CSI feedback corresponding to the channel state information parameter set.
  • the first type of RNTI includes at least one of C-RNTI, CS-RNTI, and MCS-C-RNTI
  • the second type of RNTI includes non-terminal-specific RNTI
  • the first type of RNTI may be a special type of RNTI, which may include one or more of C-RNTI, CS-RNTI, and MCS-C-RNTI
  • the second type of RNTI may be a non-terminal-specific RNTI , for example, the RNTI corresponding to a group of terminals or all terminals.
  • FIG. 7 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the embodiment of the above application. Referring to FIG. 7 , the method provided by the embodiment of the present application specifically includes follows the steps below:
  • Step 700 Measure channel state information CSI.
  • Step 710 Feed back a set of values for the channel state information parameter set when the format of the associated DCI is the format of the first type.
  • Step 720 When the format of the associated DCI is the format of the second type, feedback the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is a positive integer greater than 1.
  • the number is predefined by the system or configured through the CSI feedback number parameter; the number of bits included in the format of the first type is different from that of the format of the second type.
  • the terminal can judge the format of the associated DCI, for example, can judge the number of bits included in the associated DCI, and determine whether the format of the associated DCI is the first type format or the second type format according to the number of bits, When the format is the first type, a set of values is fed back for the channel state information parameter set CSI. When the format is the second type, the value of the preset number of groups is fed back for the channel state information parameter set CSI.
  • the preset number of groups is determined by The system is pre-defined or configured through the CSI feedback number parameter.
  • Step 730 Send CSI feedback corresponding to the channel state information parameter set.
  • FIG. 8 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the embodiment of the above application. Referring to FIG. 8 , the method provided by the embodiment of the present application specifically includes follows the steps below:
  • Step 800 Measure channel state information CSI.
  • Step 810 Feed back a set of values for the channel state information parameter set when the associated DCI is detected on the first time-frequency domain resource.
  • Step 820 In the case where the associated DCI is detected on the second time-frequency domain resource, feed back the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is a positive integer greater than 1.
  • the number is predefined by the system or configured through the CSI feedback number parameter; the first time-frequency domain resource and the second time-frequency domain resource are set based on different configuration information.
  • the terminal may judge the time-frequency domain resources associated with the DCI, for example, may judge the type of configuration information associated with the DCI time-frequency domain resources, for example, the configuration information may include physical resources (Control Resource Set, CORESET), search space, aggregation level, blind detection opportunity and resource element group (Resource Element Group, REG), etc.
  • the configuration information of the time-frequency domain resources it is determined that the format of the associated DCI is the first time-frequency domain resource and the second time-frequency domain resource. value, when it is the second time-frequency domain resource, the value of the preset number of groups for the channel state information parameter set CSI feedback, the preset number of groups is predefined by the system or configured by the number of CSI feedback parameters.
  • Step 830 Send CSI feedback corresponding to the channel state information parameter set.
  • the configuration information includes at least one of the following: physical resource CORESET, search space, aggregation level, blind detection opportunity and resource element group REG.
  • FIG. 9 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the embodiment of the above application. Referring to FIG. 9 , the method provided by the embodiment of the present application specifically includes follows the steps below:
  • Step 900 Measure channel state information CSI.
  • Step 910 Feed back a set of values for the channel state information parameter set when the scheduling data type identifier indicates that the scheduling data is unicast data transmission.
  • Step 920 In the case where the scheduling data type identifier indicates that the scheduling data is non-unicast data transmission, feedback the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is a positive integer greater than 1.
  • the number of groups is pre-defined by the system or configured through the CSI feedback number parameter.
  • the terminal may judge the indication scheduling data type identifier associated with the DCI. If the scheduling data type identifier is unicast data transmission, the DCI feeds back a set of values corresponding to the channel state information parameter set.
  • the data type is identified as non-unicast data transmission such as multicast or broadcast, and the DCI feedbacks the value of the preset number of groups corresponding to the channel state information parameter set.
  • the preset number of groups is predefined by the system or configured through the CSI feedback number parameter.
  • Step 930 Send CSI feedback corresponding to the channel state information parameter set.
  • the scheduling data type identifier includes at least one of the following: carrier indication, bandwidth part (Bandwidth Part, BWP) indication, time domain resource allocation indication, frequency domain resource allocation indication, demodulation reference Signal DMRS sequence related information indication, data transmission channel scrambling code information indication, data type indication, antenna port indication and priority indication.
  • the indication, the antenna port indication, and the priority indication indicate whether the DCI's scheduled data type is unicast data transmission or non-unicast data transmission.
  • FIG. 10 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is an embodiment based on the embodiment of the above application. Referring to FIG. 10 , the method provided by the embodiment of the present application specifically includes follows the steps below:
  • Step 1010 Measure channel state information CSI.
  • Step 1020 In the case of receiving at least two CSI feedback configurations with the same content and different indices, feedback the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1,
  • the preset number of groups is predefined by the system or configured by a parameter of the number of CSI feedback.
  • the terminal when the terminal receives at least two CSI feedback configurations with the same content, and the indices of the two CSI feedback configurations are different, it can determine the channel state information parameter set to feed back multiple groups of values, and the feedback value is The number of groups of values can be predefined by the system or configured through the CSI feedback number parameter.
  • Step 1030 Send CSI feedback corresponding to the channel state information parameter set.
  • the values of the preset number of groups correspond to CSI feedback configurations with the same content but different indexes in descending order of indexes from good to bad.
  • the values of the fed back channel state information when feeding back CSI, may be selected in descending order, and the selected channel state information may correspond to the content in descending order or in descending order.
  • FIG. 11 is a flowchart of another method for feeding back channel state information provided by an embodiment of the present application.
  • the embodiment of the present application is a specific embodiment based on the embodiment of the above application. Referring to FIG. 11 , the method provided by the embodiment of the present application specifically includes follows the steps below:
  • Step 1110 Measure channel state information CSI.
  • Step 1120 In the case of receiving at least two CSI feedback configurations with the same preset content, feedback the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is a positive integer greater than 1.
  • the number of groups is pre-defined by the system or configured through the CSI feedback number parameter.
  • the channel state information parameter set when at least two CSI feedback configurations received by the terminal, and the two CSI feedback configuration values include at least two identical contents, it may be determined that the channel state information parameter set is fed back in multiple groups of values,
  • the number of groups of feedback values may be predefined by the system or configured through a parameter of the number of CSI feedbacks.
  • the preset content in the received at least two CSI feedback configurations with the same preset content includes at least one of the following: CSI feedback format, reference to channel state information associated with CSI feedback Signal (Channel State Information-Reference Signal, CSI-RS) resource, measurement carrier for CSI feedback, measurement BWP for CSI feedback, and use of CSI feedback.
  • CSI feedback format reference to channel state information associated with CSI feedback Signal (Channel State Information-Reference Signal, CSI-RS) resource, measurement carrier for CSI feedback, measurement BWP for CSI feedback, and use of CSI feedback.
  • CSI-RS Channel State Information-Reference Signal
  • the preset content may be the content included in the CSI feedback, and may be one of the CSI feedback format, the CSI-RS resources associated with the CSI feedback, the measurement carrier for the CSI feedback, the measurement BWP for the CSI feedback, and the purpose of the CSI feedback. or more.
  • Step 1130 Send CSI feedback corresponding to the channel state information parameter set.
  • FIG. 12 is a flowchart of another channel state information feedback method provided by an embodiment of the present application.
  • the embodiment of the present application is a specific embodiment based on the embodiment of the above application. Referring to FIG. 12 , the method provided by the embodiment of the present application specifically includes follow the steps below:
  • Step 1200 Determine the beam information of the channel state information measurement resource according to the beam judgment information.
  • Step 1210 Determine the CSI feedback corresponding to the channel state information parameter set according to the setting conditions.
  • the beam judgment information may be information used for judging the beam information used by the terminal to measure the channel state information, and may include beam information of the downlink data transmission channel; beam information of the DCI scheduling the downlink data transmission channel; Opportunities for blind detection of DCI, etc.
  • the terminal can determine the beam information according to one or more of beam information of the downlink data transmission channel; beam information of the DCI scheduling the downlink data transmission channel; receiving a blind detection opportunity of the DCI scheduling the downlink data transmission channel.
  • the beam determination information includes at least one of the following:
  • the beam information of the downlink data transmission channel ; the beam information of the DCI scheduling the downlink data transmission channel; the blind detection opportunity of receiving the DCI scheduling the downlink data transmission channel.
  • Step 1220 Send CSI feedback corresponding to the channel state information parameter set.
  • the beam information of the downlink data transmission channel is determined by at least one of the following: indicating in the DCI scheduling the downlink data transmission channel; indicating in the MAC layer control unit CE; Predefined by the system; indicated by RRC signaling.
  • the downlink data transmission channel is associated with the channel state information measurement resource, and the association includes at least one of the following: the downlink data transmission channel and the channel state The information measurement resource is sent on the same carrier; the downlink data transmission channel and the channel state information measurement resource are sent on the same BWP; the downlink data transmission channel and the channel state information measurement resource are sent on the same frequency domain resource ;
  • the downlink data transmission channel is of the same type as the channel state information measurement resource and the type is a non-unicast type, and the type is indicated by the RRC configuration signaling or the DCI that schedules the downlink data transmission channel;
  • the DCI of the downlink data transmission channel and the channel state information measurement resource are sent on the same carrier; the DCI of the downlink data transmission channel and the channel state information measurement resource are scheduled to be sent on the same BWP; the downlink data transmission is scheduled
  • the DCI of the channel and the channel state information measurement resource are sent on the same frequency domain resource.
  • the channel state information measurement resources include at least one of the following: periodic CSI-RS resources, aperiodic CSI-RS resources, and semi-persistent CSI-RS resources.
  • the trigger state is used as an example to associate a CSI-ReportConfig
  • the base station indicates to the terminal a parameter of the number of CSI feedbacks through RRC signaling
  • the parameter of the number of CSI feedbacks is used to indicate that the relevant CSI Report that the terminal needs to feed back contains a number of parameters.
  • the channel state information parameter set contains one or more channel state information, such as CQI, PMI, RI, etc.
  • the channel state information contained in the channel state information parameter set may be A subset of all channel state information that needs to be fed back in the CSI Report.
  • the terminal needs to feed back four channel state information CRI, RI, PMI and CQI in the relevant CSI Report, and the channel state parameter set includes PMI and CQI, then for other channel state information not included in the channel state information parameter set, such as For the CRI and RI here, the terminal only needs to feed back one value in the relevant CSI Report; for the channel state information contained in the channel state information parameter set, such as the PMI and CQI here, the terminal needs to feed back the number parameter according to the CSI configuration to determine several groups of values for feedback.
  • Which channel state information is included in the channel state information parameter set may be predefined by the system or semi-statically configured by the base station.
  • the channel state information parameter set may be pre-defined by the system or semi-statically configured by the base station. Further, if the channel state information parameter set contains multiple channel state information, and the determination of the multiple channel state information is dependent on each other, for example, the determination of the value of the channel state information parameter 1 needs to depend on the channel state information parameter 2. value, then the terminal must feed back several different values for the channel state information parameter 2, and obtain the value of the channel state information parameter 1 under each channel state information parameter 2 value, so that the terminal obtains multiple sets of ⁇ channel state information Parameter 1, the value of channel state information parameter 2 ⁇ , and feed it back to the base station.
  • the channel state information parameter set may include PMI and CQI, and one PMI value corresponds to one CQI value, indicating that the CQI value is calculated based on the PMI value.
  • the specific method for the base station to indicate the number of CSI feedback parameters to the terminal is implemented by the following methods:
  • the terminal feeds back N groups of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report.
  • the specific N can be equal to a system predefined value, such as equal to 2 or 3 or 4.
  • the N values for one channel state information may be optimal N values.
  • the optimal channel state information value refers to one or more of the optimal modulation order and coding rate transmission block size that can be achieved under the condition of a certain bit error rate.
  • the relevant CSI Report refers to the target CSI Report for which the RRC signaling corresponding to the CSI feedback number parameter configured by the base station takes effect, and may be one or more CSI Reports.
  • the UE needs to traverse all the PMI value ranges to obtain the corresponding PMI values.
  • the value of the optimal CQI value that is, ⁇ PMI value n, optimal CQI value ⁇ . If the PMI value range includes 4 candidate PMI values, the UE will obtain 4 sets of ⁇ PMI value n, optimal CQI value ⁇ , where n is 1 to 4.
  • the terminal must feed back the best first 3 sets for PMI and CQI feedback ⁇ PMI value n, best CQI value ⁇ .
  • the optimal 3 groups ⁇ PMI value n, optimal CQI value ⁇ fed back by the terminal, wherein the 'PMI value n' of each group is different, or the 'PMI value n' of each group belongs to different PMI candidate set.
  • PMIs in different PMI candidate sets are orthogonal to each other. In this way, the base station can obtain more precoding information, which is convenient for the base station to coordinate the precoding weights when scheduling a group of users.
  • the terminal only feeds back one set of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report, that is, the terminal feeds back one set of values for the relevant CSI Report.
  • the set of values may be the optimal set of values. In the above specific example, the terminal feeds back an optimal set of ⁇ PMI value n, optimal CQI value ⁇ .
  • the base station configures the RRC signaling corresponding to the parameter of the number of CSI feedbacks to the terminal.
  • the value of this parameter indicates that the terminal needs to feed back several sets of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report. If the parameter indication is 1, the terminal feeds back 1 set of values for all channel state information contained in the channel state information parameter set in the relevant CSI Report. If the parameter indication is N, the terminal feeds back N groups of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report, where N is greater than 1, for example, N is 2 or 3 or 4. The method for determining the value of the N group is the same as that of method 1.
  • the terminal only feeds back one set of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report, that is, the terminal feeds back one set of values for the relevant CSI Report. For all the channel state information that needs to be fed back, only one value is fed back. Further, one value can be the optimal channel state information value, and the optimal channel state information value refers to the optimal modulation order, coding rate and One or more of the transport block sizes.
  • the base station configures the RRC signaling corresponding to the CSI feedback number parameter to the terminal, and the parameter is indicated as N, then the terminal needs to feed back N groups of values for all the channel state information contained in the channel state information parameter set in the relevant CSI Report.
  • the method for determining the value of the N group is the same as that of method 1.
  • RRC signaling corresponding to the parameter of the number of feedback CSI may be introduced into the RRC information element CSI-ReportConfig.
  • the base station configures the terminal with multiple CSI-ReportConfigs with exactly the same configuration requirements but different CSI-ReportConfig ids by configuring multiple feedback contents and or feedback amounts. to indicate that the terminal needs to feed back multiple sets of values for all the channel state information contained in a channel state information parameter set.
  • channel state information parameter set which can be pre-defined by the system or semi-statically configured by the base station or configured by reportQuantity in CSI-ReportConfig or other RRC signaling, for example, when reportQuantity in CSI-ReportConfig includes PMI, CQI,
  • the channel state information parameter set is PMI and CQI.
  • the terminal still feeds back only one or the indicated number of values according to the reportQuantity indication in the CSI-ReportConfig.
  • N is an integer greater than 1, and the terminal knows that the base station needs to know that the base station needs to know all the channel states contained in a channel state information parameter set by itself.
  • Information feedback multiple values According to the system predefined or semi-static configuration of the base station, the terminal feeds back the values from good to bad for the channel state information contained in the channel state information parameter set according to the CSI-ReportConfig id from small to large or from large to small. For other channel state information that needs to be fed back and does not belong to the channel state information parameter set, the same value is fed back for each CSI-ReportConfig.
  • CSI-ReportConfig 1 For example, if the feedback content contained in CSI-ReportConfig 1, CSI-ReportConfig 3, and CSI-ReportConfig 4 configured by the base station for the terminal are exactly the same, then the terminal knows that it needs to use the configuration of these CSI-ReportConfigs for a certain channel state. For the channel state information contained in the information parameter set, multiple values are fed back. For the channel state information that does not belong to the channel state information parameter set, only one or a specified number of values are fed back according to the reportQuantity indication in CSI-ReportConfig.
  • the terminal determines 3 groups of ⁇ CQI, PMI ⁇ according to the measurement result. Therefore, the determination of the CQI value depends on the PMI value, so the terminal must ensure that the PMI values in the three groups of values are different. Based on this principle, the UE obtains three groups of ⁇ CRI, RI ⁇ corresponding to the same group of ⁇ CQI, PMI ⁇ values, namely ⁇ CQI 1, PMI 1 ⁇ , ⁇ CQI 2, PMI 2 ⁇ and ⁇ CQI 3, PMI 3 ⁇ .
  • ⁇ CQI 1, PMI 1 ⁇ correspond to the optimal modulation mode and coding rate that the terminal considers to be achievable, as the CSI feedback corresponding to CSI-ReportConfig 1; where ⁇ CQI 2, PMI 2 ⁇ correspond to the second best that the terminal considers to be achievable.
  • the modulation mode and coding rate are used as the CSI feedback corresponding to CSI-ReportConfig 3; where ⁇ CQI 3, PMI 3 ⁇ correspond to the third-best modulation mode and coding rate that the terminal considers to be achievable, as the CSI feedback corresponding to CSI-ReportConfig 4 . Because the calculation of CQI depends on the value of PMI, PMI 1, PMI 2, and PMI 3 are not equal to each other.
  • the UE obtains the value of CQI 1 based on the value of PMI 1, the value of CQI 2 based on the value of PMI 3, and the value of CQI 2 based on the value of PMI 3.
  • the value gets the CQI 3 value.
  • the values of CQI 1, CQI 2, and CQI 3 may be equal or different.
  • the number of groups of channel state information feedback values in the channel state information parameter set is indicated by the DCI as an example, and the base station uses the DCI for triggering CSI feedback or the DCI for scheduling data transmission to explicitly or implicitly indicate Whether the terminal feeds back one set or multiple sets of values for all the channel state information contained in a channel state information parameter set.
  • the following methods are included:
  • the terminal determines, according to the RNTI of the scrambled DCI, whether to feed back one group or multiple groups of values for all the channel state information included in the channel state information parameter set.
  • the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, the channel state information parameter All channel state information contained in the set is fed back with one set of values.
  • the terminal If the RNTI of the scrambled DCI is not a UE-specific RNTI, such as a group-common RNTI, that is, an RNTI used by multiple users, the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, the channel state information parameter All the channel state information contained in the set are fed back to N groups of values. How to obtain the values of N groups is the same as in Embodiments 1 and 2.
  • the domain can be the carrier indication domain, the BWP indication domain, the time domain resource allocation indication domain, the frequency domain resource allocation indication domain, the demodulation reference signal (Demodulation Reference Signal, DMRS) sequence related information indication domain, and the scrambling code information indication of the data transmission channel. , or data type indication field, antenna port indication, priority indication, etc.
  • the terminal considers that in the DCI-triggered CSI feedback or the DCI-related CSI feedback, one set of values for all channel state information feedback included in the channel state information parameter set is considered.
  • the terminal considers that in the DCI-triggered CSI feedback or the DCI-related CSI feedback, there are N groups of values for all channel state information feedback included in the channel state information parameter set.
  • the N groups of values are pre-defined by the system or configured through the CSI feedback number parameter.
  • the terminal feeds back one group or multiple groups of values for all the channel state information contained in a channel state information parameter set.
  • the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, for all the channel state information feedback contained in the channel state information parameter set 1 set of values.
  • the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, for all the channel state information feedback contained in the channel state information parameter set N groups of values. How to get the values of N groups, the same as
  • DCI format type 1 is different from DCI format type 2, which can be pre-defined by the system or semi-statically configured by the base station for terminal deblind detection.
  • Payload value 1 is different from payload value 2, which can be predefined by the system or semi-statically configured by the base station.
  • Method 5 Indicate by the time-frequency resource for sending DCI
  • Time-frequency resource 1 and time-frequency resource 2 are predefined by the system or semi-statically configured by the base station to the terminal, which may be specific CORESET configuration, search space configuration, aggregation level configuration, blind detection opportunity configuration, and REG configuration used for sending DCI, etc. .
  • the terminal If the base station sends DCI on time-frequency resource 1 and the terminal blindly detects DCI on time-frequency resource 1, the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, for all the parameters included in the channel state information parameter set Channel state information feedback 1 group of values.
  • the terminal If the base station sends DCI on time-frequency resource 1 and the terminal blindly detects DCI on time-frequency resource 1, the terminal considers that in the CSI feedback triggered by the DCI or the CSI feedback associated with the DCI, for all the parameters included in the channel state information parameter set
  • the channel state information feeds back N groups of values.
  • the value of N can be pre-defined by the system or configured through the CSI feedback number parameter.
  • the transmission beam information of which may be associated with the beam information for transmission of the downlink data transmission channel.
  • the transmission beam information may be Quasi Co-Location (Quasi Co-Location, QCL) information and other information used to reflect the beam direction.
  • the base station can use the beam information for sending the downlink data transmission channel to send periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources, so as to allow the terminal to transmit the downlink data transmission channel based on the beam information.
  • Receive periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources, so that the terminal can use RS resources are used for channel state information measurement.
  • the channel state information measurement includes the measurement of CQI, PMI and other information.
  • the base station configures the terminal with one or more periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources for channel state information measurement on specific frequency domain resources, and multiple periodic CSI-RS resources Can belong to the same periodic CSI-RS resource Set, multiple semi-persistent CSI-RS resources can belong to the same semi-persistent CSI-RS resource Set, and multiple aperiodic CSI-RS resources can belong to the same aperiodic CSI-RS resource Set .
  • the base station uses RRC signaling to configure frequency domain resources for sending CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources, so that the terminal can measure channel state information on the frequency domain resources.
  • the base station schedules downlink data transmission channels on specific frequency domain resources, and uses DCI for scheduling, and the scheduled DCI can be sent on one or more opportunities in a set of PDCCH blind detection opportunities.
  • the DCI will indicate the frequency domain resources used to transmit the downlink data transmission channel. For the determination of periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resource beam information, at least one of the following methods is adopted:
  • the base station instructs the terminal which beam information to use to send the downlink data transmission channel in the scheduling DCI or MAC CE, then correspondingly, the base station also uses the same beam information to send periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI. -RS resources, then the terminal receives periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources according to the beam information.
  • the terminal ignores the RRC signaling configuration
  • the beam information of periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources The terminal determines periodic CSI-RS resources, semi-persistent CSI-RS resources, and semi-persistent CSI-RS resources according to the transmission frequency domain resource configuration of periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources, and the transmission frequency domain resource configuration of downlink data transmission.
  • the CSI-RS resource or aperiodic CSI-RS resource and which downlink data transmission uses the same transmit beam information can also be sent using different beam information.
  • the system pre-defines or the base station uses RRC signaling to semi-statically configure the correspondence between the beam information of periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources and the PDCCH blind detection opportunity for sending scheduled DCI.
  • the base station semi-statically configures periodic CSI-RS resource 1 corresponding to PDCCH blind detection opportunity 1 within a specific window length
  • periodic CSI-RS resource 2 corresponds to PDCCH blind detection opportunity 2 within a specific window length
  • periodic CSI-RS resource 3 Corresponds to PDCCH blind detection opportunity 3 within a specific window length.
  • the periodic CSI-RS resource, semi-persistent CSI-RS resource or aperiodic CSI-RS resource is sent using the beam information indicated in the blindly detected scheduling DCI on the associated PDCCH blind detection opportunity. If the terminal blindly detects the scheduled DCI on the PDCCH blind detection opportunity 2, and the scheduled DCI indicates beam information 2, the periodic CSI-RS resource 2 is sent using the beam information 2, and the terminal uses the corresponding beam information to receive the periodic CSI. -RS resource 2. Therefore, as the beam information indicated in the scheduling DCI is different, the associated periodic CSI-RS resources can be sent using different beam information.
  • the beam information can be sent and the downlink data transmission can be scheduled.
  • the transmission beam information of the scheduling DCI of the channel is associated.
  • the downlink data transmission channel sent by the base station on the specific frequency domain resource is scheduled by DCI, and the scheduled DCI may be sent on one or more opportunities in a set of PDCCH blind detection opportunities.
  • the base station may use different beam information to transmit the scheduled DCI.
  • the corresponding relationship between the periodic CSI-RS resource, the semi-persistent CSI-RS resource or the aperiodic CSI-RS resource and the PDCCH blind detection opportunity is pre-defined by the system or semi-statically configured by the base station.
  • the base station uses RRC signaling to semi-statically configure periodic CSI-RS resource 1 corresponding to PDCCH blind detection opportunity 1 within a window length, periodic CSI-RS resource 2 corresponding to PDCCH blind detection opportunity 2 within a window length, and periodic CSI-RS resource 3 Corresponds to PDCCH blind detection opportunity 3 within a window length.
  • the base station sends the periodic CSI-RS resource 1 by sending the DCI beam information on the PDCCH blind detection opportunity 1, and sends the DCI beam information on the PDCCH blind detection opportunity 2 to send
  • the periodic CSI-RS resource 3 is sent by sending the beam information of the DCI on the PDCCH blind detection opportunity 3. If the transmission beam information configured by the base station for the periodic CSI-RS resource 1 is not equal to the beam information for transmitting the DCI on the PDCCH blind detection opportunity 1, the terminal ignores the transmission beam information configured by the base station for the periodic CSI-RS resource 1. Instead of sending beam information, periodic CSI-RS resource 1 is received using the beam information for receiving the associated PDCCH blind detection opportunity.
  • the base station uses the beam information corresponding to the blind detection opportunity to send the associated one or more periodic CSI-RS resources, semi-persistent CSI -RS resources or aperiodic CSI-RS resources, if the base station uses RRC signaling to configure the beam information of the periodic CSI-RS resources, semi-persistent CSI-RS resources or aperiodic CSI-RS resources to correspond to the PDCCH blind detection opportunities If the beam information is different, the terminal ignores the beam information of the periodic CSI-RS resource configured by the RRC signaling, and receives the periodic CSI-RS resource according to the beam information corresponding to the blind detection opportunity.
  • the downlink data transmission channel is associated with channel state information measurement resources such as periodic CSI-RS resources, aperiodic CSI-RS resources, and semi-persistent CSI-RS resources, and the association includes at least one of the following:
  • the channel state information measurement resource is sent on the same carrier; the downlink data transmission channel and the channel state information measurement resource are sent on the same BWP; the downlink data transmission channel and the channel state information measurement resource are sent on the same frequency.
  • the type of the downlink data transmission channel and the channel state information measurement resource is the same and the type is a non-unicast type, and the type is configured by the RRC or the DCI that schedules the downlink data transmission channel instruction; scheduling the DCI of the downlink data transmission channel and the channel state information measurement resource to be sent on the same carrier; scheduling the DCI of the downlink data transmission channel and the channel state information measurement resource to be sent on the same BWP; The DCI of the downlink data transmission channel and the channel state information measurement resource are sent on the same frequency domain resource.
  • FIG. 13 is a schematic structural diagram of a channel state information feedback device provided by an embodiment of the present application, which can execute the channel state information feedback method provided by any embodiment of the present application, and has functional modules and beneficial effects corresponding to the execution method.
  • the device can be implemented by software and/or hardware, generally integrated in a remote server, and specifically includes: an information measurement module 131 and a feedback sending module 132,
  • the information measurement module 131 is used to measure the channel state information CSI.
  • the feedback sending module 132 is configured to send the CSI feedback corresponding to the channel state information parameter set.
  • the channel state information is measured by the information measurement module, and the feedback sending module feeds back the acquired channel state information to the base station, thereby realizing the feedback of the channel state information, enriching the feedback content through the channel state information parameter set, and enhancing the channel state information It can improve the accuracy of the scheduling decision of the base station under the broadcast multicast service.
  • the device further includes:
  • the feedback determination module is configured to determine the CSI feedback corresponding to the channel state information parameter set according to the setting condition.
  • the setting conditions in the feedback determination module include at least one of the following: the configuration of the CSI feedback number parameter; the parameter value of the CSI feedback number parameter; receiving associated downlink control information DCI The scrambling situation of the associated DCI; the scheduling data type identifier in the associated DCI; the format of the associated DCI is received; the time-frequency domain resources of the associated DCI are received; at least two CSI feedback configurations with the same content and different indexes are received; It is assumed that the CSI feedback configuration with the same content, wherein the preset content includes at least one of the CSI feedback configuration content.
  • the CSI feedback in the feedback sending module 132 includes at least one CSI report report, and the parameter of the number of CSI feedbacks of the CSI feedback is configured through RRC signaling in the radio resource control layer.
  • the CSI feedback number parameter of the CSI feedback in the feedback sending module 132 is configured for a specific CSI report, or the CSI feedback number parameter is configured for all CSI reports.
  • the channel state information parameter set in the feedback sending module 132 includes one channel state information, and the channel state information is based on a system predefined configuration and/or an RRC signaling configuration.
  • the feedback determination module includes: a first value unit, configured to feed back a group of values when the CSI feedback number parameter of the CSI feedback indicates that the channel state information parameter set is fed back , and feed back a set of optimal values for the channel state information parameter set.
  • the feedback determination module includes: a second value unit, configured to feed back at least two sets of values when the CSI feedback number parameter of the CSI feedback indicates the channel state information parameter set.
  • the optimal value of the preset number of groups is fed back for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is predefined by the system or through CSI Feedback number parameter configuration.
  • the optimal value in the first value unit and/or the second value unit includes: the corresponding modulation order, coding rate and transmission block size under the preset bit error rate condition. one or more of them.
  • the associated DCI in the CSI feedback in the feedback sending module 132 includes the DCI for triggering the CSI feedback and/or the DCI for scheduling data transmission.
  • the feedback determination module is specifically configured to: in the case that the wireless network temporary identifier RNTI that scrambles the associated DCI is the first type RNTI, for the channel state information parameter set Feeding back a set of values; in the case that the RNTI of the wireless network temporary RNTI that scrambles the associated DCI is the second type RNTI, feeds back the value of the preset number of groups for the channel state information parameter set, wherein the preset group The number is a positive integer greater than 1, and the preset number of groups is predefined by the system or configured through the CSI feedback number parameter.
  • the first type of RNTI includes at least one of C-RNTI, CS-RNTI, and MCS-C-RNTI
  • the second type of RNTI includes non-terminal-specific RNTI
  • the feedback determination module is specifically configured to: in the case that the scheduling data type identifier indicates that the scheduling data is unicast data transmission, feedback a set of parameters for the channel state information parameter set. value; when the scheduling data type identifier indicates that the scheduling data is non-unicast data transmission, the value of the preset number of groups is fed back for the channel state information parameter set, where the preset number of groups is greater than 1 A positive integer, the preset number of groups is predefined by the system or configured through the CSI feedback number parameter.
  • the scheduling data type identifier includes at least one of the following: carrier indication, bandwidth part BWP indication, time domain resource allocation indication, frequency domain resource allocation indication, and DMRS sequence correlation.
  • the feedback determination module is specifically configured to: feed back a set of values for the channel state information parameter set when the format of the associated DCI is the format of the first type;
  • the format of the associated DCI is the second type format
  • the value of the preset number of groups is fed back for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is a positive integer greater than 1.
  • the number of groups is predefined by the system or configured through the CSI feedback number parameter; the number of bits included in the format of the first type and the format of the second type are different.
  • the feedback determination module is specifically configured to: in the case where the associated DCI is detected on the first time-frequency domain resource, feedback a set of parameters for the channel state information parameter set. value; when the associated DCI is detected on the second time-frequency domain resource, feedback the value of the preset number of groups for the channel state information parameter set, where the preset number of groups is a positive integer greater than 1,
  • the preset number of groups is predefined by the system or configured through a CSI feedback number parameter; the first time-frequency domain resource and the second time-frequency domain resource are set based on different configuration information.
  • the configuration information includes at least one of the following: physical resource CORESET, search space, aggregation level, blind detection opportunity and resource element group REG.
  • the feedback determination module is specifically configured to: in the case of receiving at least two CSI feedback configurations with the same content and different indices, feedback presets for the channel state information parameter set The value of the number of groups, where the preset number of groups is a positive integer greater than 1, and the preset number of groups is predefined by the system or configured through the CSI feedback number parameter.
  • the preset content in the CSI feedback configuration with the same at least two preset content received includes at least one of the following:
  • CSI feedback format CSI-RS resources associated with CSI feedback, measurement carrier for CSI feedback, measurement BWP for CSI feedback, and use of CSI feedback.
  • the values of the preset number of groups correspond to CSI feedback configurations with the same content but different indexes in descending order of indexes from good to bad.
  • the information measurement module 131 includes:
  • the beam information unit is used to determine the beam information of the channel state information measurement resource according to the beam judgment information.
  • the beam judgment information includes at least one of the following:
  • a blind detection opportunity for the DCI scheduling the downlink data transmission channel is received.
  • the beam information of the downlink data transmission channel is determined by at least one of the following:
  • the downlink data transmission channel is associated with the channel state information measurement resource, and the association includes at least one of the following:
  • the downlink data transmission channel and the channel state information measurement resource are sent on the same carrier;
  • the downlink data transmission channel and the channel state information measurement resource are sent on the same BWP;
  • the downlink data transmission channel and the channel state information measurement resource are sent on the same frequency domain resource;
  • the downlink data transmission channel is of the same type as the channel state information measurement resource, and the type is a non-unicast type, and the type is indicated by the RRC configuration signaling or the DCI scheduling the downlink data transmission channel;
  • the DCI scheduling the downlink data transmission channel and the channel state information measurement resource are sent on the same frequency domain resource.
  • the channel state information measurement resources include at least one of the following: periodic CSI-RS resources, aperiodic CSI-RS resources, and semi-persistent CSI-RS resources.
  • FIG. 14 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the device includes a processor 140, a memory 141, an input device 142, and an output device 143; the number of processors 140 in the device may be One or more, one processor 140 is taken as an example in FIG. 14 ; the device processor 140, memory 141, input device 142 and output device 143 can be connected by a bus or other means, and FIG. 14 takes the connection by a bus as an example.
  • the memory 141 can be used to store software programs, computer-executable programs, and modules, such as the modules (information measuring module 131 and feedback sending module 132) corresponding to the channel state information feedback device in the embodiments of the present application.
  • the processor 140 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 141 , that is, to implement the above-mentioned method.
  • the memory 141 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Additionally, memory 141 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 141 may further include memory located remotely from processor 140, which may be connected to the device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the input device 142 may be used to receive input numerical or character information, and to generate key signal input related to user settings and function control of the device.
  • the output device 143 may include a display device such as a display screen.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-executable instructions are used to execute a channel state information feedback method when executed by a computer processor, and the method includes:
  • a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the above-mentioned method operations, and can also execute the channel state information feedback method provided by any embodiment of the present application. related operations in .
  • client encompasses any suitable type of wireless user equipment, such as a mobile telephone, portable data processing device, portable web browser or vehicle mounted mobile station.
  • the various embodiments of the present application may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Embodiments of the present application may be implemented by the execution of computer program instructions by a data processor of a mobile device, eg in a processor entity, or by hardware, or by a combination of software and hardware.
  • Computer program instructions may be assembly instructions, Industry Standard Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.
  • ISA Industry Standard Architecture
  • the block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read-Only Memory (ROM), Random Access Memory (RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disc (CD)), etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor can be of any type suitable for the local technical environment, such as, but not limited to, a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Process (DSP), an Application Specific Integrated Circuit (ASIC) ), programmable logic devices (Field Programmable Gate Array, FPGA) and processors based on multi-core processor architecture.
  • DSP Digital Signal Process
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array

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Abstract

本申请实施例提供了一种信道状态信息反馈方法、装置、设备和存储介质，其中，该方法包括：测量信道状态信息CSI；发送对应所述信道状态信息参数集合的所述CSI反馈。本申请实施例通过信道状态信息参数集合实现信道状态信息的反馈，丰富了反馈内容，可增强信道状态信息的反馈，实现多播或广播传输下的基站调度决策的准确性。

Description

信道状态信息反馈方法、装置、设备和存储介质 技术领域
本申请涉及通信技术领域，例如涉及一种信道状态信息反馈方法、装置、设备和存储介质。
背景技术
在通信领域中，对于广播多播业务，基站常需要给一组用户发送物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。为保证传输的可靠性，基站需要参考一组用户的信道状态信息(Channel State Information,CSI)反馈，从而得到适合一组用户的链路自适应效果。
在这种情况下，基站需要根据每个用户反馈的信道状态信息来给一组用户确定若干传输属性，例如，调制与编码策略(Modulation and Coding Scheme,MCS)、预编码信息、层信息和端口信息等，如果每个用户仍然按照单播传输模式下的信道状态信息测量机制以及反馈机制工作，终端反馈给基站的信道状态信息可能比较少，不足以支持基站基于一组用户的反馈做出调度，为了适应多播及广播业务，有必要增强用户的信道状态信息测量以及反馈机制，从而使一组用户能够给基站反馈更丰富的信息，提高基站基于一组用户做出的调度决策的准确性。
发明内容
本申请实施例提供了一种信道状态信息反馈方法、装置、设备和存储介质，以实现信道状态信息的反馈，丰富反馈内容，增强信道状态信息的测量，提高基站调度决策的准确性。
本申请实施例提供了一种信道状态反馈方法，该方法包括：
测量信道状态信息CSI；
发送对应所述信道状态信息参数集合的所述CSI反馈。
本申请实施例还提供了一种信道状态信息反馈装置，该装置包括：
信息测量模块，用于测量信道状态信息CSI；
反馈发送模块，用于发送对应所述按照信道状态信息参数集合的所述CSI反馈。
本申请实施例还提供了一种设备，该设备包括：
一个或多个处理器；
存储器，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本申请实施例中任一所述的信道状态信息反馈方法。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本申请实施例中任一所述的信道状态信息反馈方法。
本申请实施例，根据信道状态信息参数集合在终端测量信道状态信息，然后将获取到的信道状态信息反馈到基站，实现了信道状态信息的反馈，通过信道状态信息参数集合丰富反馈内容，增强信道状态信息的测量，提高基站调度决策的准确性。
附图说明
图1是本申请实施例提供的一种信道状态信息反馈方法的流程图；
图2是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图3是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图4是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图5是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图6是本申请实施例提供的一种信道状态信息反馈方法的流程图；
图7是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图8是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图9是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图10是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图11是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图12是本申请实施例提供的另一种信道状态信息反馈方法的流程图；
图13是本申请实施例提供的一种信道状态信息反馈装置的结构示意图；
图14是本申请实施例提供的一种设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。
对应相关技术中的的新空口(New Radio，NR)系统，支持三种类型的CSI反馈：非周期CSI反馈、周期CSI反馈和半持续CSI反馈。对于非周期CSI反馈，由调度上行数据的PDCCH触发，被触发的非周期CSI反馈和上行数据都承载在上行物理共享信道(Physical Uplink Shared Channel，PUSCH)里，因此可以认为传输非周期CSI反馈的时频资源由调度上行数据的DCI中的时域资源分配(Time Domain Resource Allocation，TDRA)域和频域资源分配(Frequency Domain Resource Allocation，FDRA)域指示。对于周期CSI反馈，终端在PUCCH里反馈，基站会通过无线资源控制层(Radio Resource Control,RRC)信令为周期CSI反馈半静态配置PUCCH资源。对于半持续CSI反馈，有两种承载方式：一种是由媒体接入控制-控制元素(Medium Access Control-Control Element，MAC CE)激活、去激活的半持续CSI反馈，在PUCCH上承载；另一种由PDCCH激活、去激活，在该PDCCH调度的PUSCH上承载。前一种方式的承载资源和周期CSI反馈类似，承载在基站半静态配置的PUCCH资源上。后一种方式的承载源和非周期CSI反馈类似，承载在PDCCH的TDRA域、FDRA域指示的PUSCH资源上。
如果缺少终端反馈的CSI信息，那么基站只能通过较保守的方式进行链路自适应。
根据NR协议，基站在RRC信令信道状态信息-报告配置CSI-ReportConfig中会配置很多和信道状态信息报告CSI Report相关的子信令，以及用于测量的参考信号(Reference Signal,RS)资源配置，RS资源配置中可以包含1个或多个RS资源配置集RS，a)对于需要用基站发送的DCI来触发的A-CSI反馈，DCI的CSI反馈域会指示一个触发状态trigger state，所述trigger state会关联1个或多个信道状态信息-关联报告配置信息CSI-AssociatedReportConfigInfo，每个CSI-AssociatedReportConfigInfo中会指示关联CSI Report基于RS资源配置中哪个RS资源配置集来进行测量，并且指示所述RS配置集中各RS资源使用的波束信息。b)对于需要用基站发送的MAC CE来激活/去激活的承载在PUCCH上反馈的半持续-信道状态信息SP-CSI，其CSI-ReportConfig中配置的用于测量的RS资源配置，只能包含1个RS资源配置集。c)对于需要用基站发送的DCI来触发的承载在PUSCH上反馈的SP-CSI，DCI的CSI Request域会指示一个trigger state，所述trigger state就是1个CSI-ReportConfig。d)对于周期-信道状态信息P-CSI反馈，基站无需发送触发指示，UE会根据相关CSI-ReportConfig中配置的周期以及反馈资源，如期进行P-CSI反馈。
根据NR协议，可以通过RRC信令CSI-ReportConfig的子信令报告量reportQuantity来配置对应CSI Report的反馈格式，具体包括如下反馈格式：None、cri-RI-PMI-CQI、cri-RI-LI-PMI-CQI、cri-RI-i1、cri-RI-i1-CQI、cri-RI-CQI、cri-RSRP和ssb-Index-RSRP。反馈格式规定了对应CSI Report中应该包括哪些信道状态信息。终端如何给基站反馈更加适合多播广播传输自适应链路的信息。
图1是本申请实施例提供的一种信道状态信息反馈方法的流程图，本申请实施例可适用于多播广播传输中终端反馈信道状态信息的情况，该方法可以由本申请实施例中的信道状态信息反馈装置来执行，该装置可以通过软件和/或硬 件的方式实现，该装置一般集成在终端中，本申请实施例提供的方法具体包括如下步骤：
步骤100、测量信道状态信息CSI。
具体的，终端可以通过测量以获取信道状态信息CSI。可以理解的是，信道状态信息CSI中至少包括一种信道的状态信息，针对信道状态信息中每种状态信息反馈的取值可以包括一个或者多个。
步骤110、发送对应信道状态信息参数集合的所述CSI反馈。
其中，信道状态信息参数集合可以用于指示终端需要反馈信道状态信息的集合，可以指示反馈信息的种类，信道状态信息参数集合可以包括一个或者多个信道状态信息，例如，信道质量指示(Channel-Quality Indicator,CQI)、预编码矩阵指示(Precoding matrix Indicator,PMI)和层指示(Rank Indicator,RI)等。
具体的，终端在完成信道状态信息参数集合对于的信道测量后，可以将获取到的信道状态信息CSI反馈给基站，以使得基站可以根据反馈的CSI对一组用户做出调度策略。
本申请实施例，通过终端测量信道状态信息，然后将获取到的信道状态信息反馈到基站，实现了信道状态信息的反馈，通过信道状态信息参数集合丰富反馈内容，增强信道状态信息的测量，提高基站在广播多播业务下的调度决策的准确性。
图2是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上述实施例基础上的具体化，参见图，本申请实施例提供的方法具体包括如下步骤：
步骤200、测量信道状态信息CSI。
步骤210、根据设置条件确定对应所述信道状态信息参数集合的CSI反馈。
在本申请实施例中，可以在终端处对设置条件进行检测，可以根据检测到 的不同条件确定出针对信道状态信息参数集合的反馈的取值数量，例如，基站向终端指示了CSI反馈数目参数时，终端可以提取CSI反馈数目参数中的数值作为CSI反馈中需要反馈信道状态信息参数集合对应的反馈数量。
步骤220、发送对应信道状态信息参数集合的所述CSI反馈。
进一步的，在上述申请实施例的基础上，所述设置条件至少包括以下一种：
CSI反馈数目参数的配置情况；CSI反馈数目参数的参数取值；接收关联下行控制信息DCI的加扰情况；关联DCI中的调度数据类型标识；接收关联DCI的格式；接收关联DCI的时频域资源；接收到至少两个内容相同且索引不同的CSI反馈配置；接收到至少两个预设内容相同的CSI反馈配置，其中，预设内容包括至少一种所述CSI反馈配置内容。
其中，反馈数目参数的配置情况可以是通过是否配置反馈数目参数的方式确定信道状态信息参数集合对应的反馈数量的情况。反馈数目参数对应信道状态信息参数集合的反馈数量。接收关联下行控制信息DCI的加扰情况可以是基站向终端发送DCI的加扰情况，由于加扰方式可以包括小区无线网络临时标识(Cell-Radio Network Temporary Identifier，C-RNTI)、配置的调度RNTI(Configured Scheduling RNTI，CS-RNTI)或调制编码方式-小区-RNTI(Modulcation and Coding Scheme-Cell-RNTI，MCS-C-RNTI)等，可以使用不同的加扰情况代表信道状态信息参数集合对应的取值数量。关联DCI中的调度数据类型标识可以是终端接收到的DCI中的调度数据类型标识，例如，单播数据类型和多播数据类型对应的信道状态信息参数集合的反馈数量可以不同。而接收关联DCI格式，可以是终端接收到的DCI的数据格式。接收关联DCI的时频域资源，可以是终端接收到的DCI占用的时域资源或者频域资源，不同的时频域资源可以对应不同的信道状态信息参数集合。还可以通过接收到的CSI反馈配置确定，可以是接收到两个内容相同但是索引不同的CSI配置或者是存在预设内容相同的多个CSI反馈配置，预设内容可以是CSI反馈配置中常见内容的 一种或者多种，当前终端确定出现上述情况时，可以确定信道状态信息参数集合的反馈数量为特定数量。
图3是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上述实施例基础上的具体化，参见图3，本申请实施例提供的方法具体包括如下步骤：
步骤300、测量信道状态信息CSI。
步骤310、根据设置条件确定对应信道状态信息参数集合的CSI反馈，CSI反馈包括至少一个CSI报告report，CSI反馈的CSI反馈数目参数通过无线资源控制层RRC信令配置。
在本申请实施例中，CSI反馈中可以包括一个或者多个CSI report,其中，CSI report可以用于反馈信道状态信息，CSI report包括针对信道状态信息参数集合反馈的取值可以由CSI反馈数目参数确定，该CSI反馈数目参数可以由通过RRC信令配置。
进一步的，在上述申请实施例的基础上，所述CSI反馈的CSI反馈数目参数针对特定CSI report配置，或者，所述CSI反馈数目参数针对所有CSI report配置。
具体的，CSI反馈中可以包括一个或者多个CSI report,可以通过CSI反馈数目参数设置反馈信道状态信息的数量，可以通过CSI反馈数目参数设置的针对信道状态信息参数集合的数量可以是针对CSI反馈中某一个或几个特定的CSI report设定,也可以是针对CSI反馈中所有的CSI report设定。
步骤320、发送对应所述信道状态信息参数集合的所述CSI反馈。
图4是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上述申请实施例的基础上的具体化，信道状态信息参数集合包括一个信道状态信息，参见图4，本申请实施例提供的方法包括如下步骤：
步骤400、根据设置条件确定对应信道状态信息参数集合的CSI反馈，信道状态信息参数集合包括一个信道状态信息，所述信道状态信息基于系统预定义配置和/或RRC信令配置。
在一个示例性的实施方式中，信道状态信息参数集合包括一个信道状态信息，终端可以结合设置条件确定出该信道状态信息的反馈数量。进一步的，信道状态信息参数集合中包括的一个信道状态信息可以通过系统预定义的方式配置或者通过RRC信令配置。
步骤410、在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈一组取值的情况下，针对所述信道状态信息参数集合反馈一组最优的取值。
具体的，CSI反馈数目参数中配置的信道状态信息集合的取值数量为1时，CSI反馈包含一组信道状态信息取值，可以在CSI测量过程中确定出的多组取值中选择最优的一组取值，作为针对该信道状态信息参数集合，CSI反馈的取值，其中，最优可以是指信道状态信息的取值反应信道质量或者信道吞吐量的最优，具体可以包含在一定误码率条件下，所能达到的最佳调制阶数、编码码率和传输块大小中的一种或者多种。
步骤420、发送对应所述信道状态信息参数集合的所述CSI反馈。
进一步的，在上述申请实施例的基础上，所述CSI反馈中的关联DCI包括触发CSI反馈的DCI和/或调度数据传输的DCI。
图5是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上述申请实施例的基础上的具体化，信道状态信息参数集合包括多个信道状态信息，参见图5，本申请实施例提供的方法包括如下步骤：
步骤500、测量信道状态信息CSI。
步骤510、根据设置条件确定对应信道状态信息参数集合的CSI反馈，所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈至少两组取值，信 道状态信息参数集合至少包括两个信道状态信息，各所述信道状态信息的取值之间存在依赖关系的情况下，依赖信道状态信息的取值基于对应的被依赖信道状态信息的至少两个取值确定。
在一个示例性的实施方式中，信道状态信息参数集合包括多个信道状态信息并且确定针对信道状态信息参数集合反馈至少两组取值，当信道状态信息参数集合中包括的多个信道状态信息之间存储依赖关系时，依赖信道状态信息的取值需要通过对应的被依赖信道状态信息的多个取值确定，例如，信道状态信息参数1取值的确定需要依赖信道状态信息参数2的取值，那么终端对于信道状态信息参数2必须反馈若干个不同的取值，在每个信道状态信息参数2取值下得到信道状态信息参数1的取值，从而终端得到多组{信道状态信息参数1，信道状态信息参数2}的取值。
步骤520、在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈至少两组取值的情况下，针对所述信道状态信息参数集合反馈预设组数的最优的取值，其中，所述预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
在本申请实施例中，CSI反馈数目参数指示CSI反馈多组取值时，可以将探测获取到信道状态信息进行排序，可以选择其中最优的多组信道状态信息的取值进行反馈，其中，反馈的组数可以由系统预定义或通过CSI反馈数目参数配置。最优可以是指指信道状态信息的取值反应信道质量或者信道吞吐量的最优，具体可以是预设误码率条件下对应的调制阶数、编码码率和传输块大小。
步骤530、发送对应所述信道状态信息参数集合的所述CSI反馈。
进一步的，在上述申请实施例的基础上，所述最优包括以下至少一种：预设误码率条件下对应的调制阶数、编码码率和传输块大小。
图6是本申请实施例提供的一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图6，本申请实施例提供的方法 具体包括如下步骤：
步骤600、测量信道状态信息CSI。
步骤610、在加扰关联DCI的无线网络临时标识RNTI为第一类型RNTI的情况下，针对信道状态信息参数集合反馈一组取值。
在一个示例性的实施方式中，终端可以对接收到的加扰关联DCI的无线网络临时标识(Radio Network Temporary Identifier，RNTI)类型进行判断，当DCI的RNTI为第一类型RNTI时，可以针对信道状态信息参数集合反馈一组取值。
步骤620、在加扰关联DCI的无线网络临时标识RNTI为第二类型RNTI的情况下，针对信道状态信息参数集合反馈预设组数的取值。
具体的，终端可以对接收到的加扰关联DCI的RNTI类型进行判断，当DCI的RNTI为第二类型RNTI时，可以针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数可以由系统预定义或通过CSI反馈数目参数配置。步骤630、发送对应信道状态信息参数集合的CSI反馈。
进一步的，在上述申请实施例的基础上，第一类型RNTI至少包括C-RNTI、CS-RNTI、MCS-C-RNTI中一种，所述第二类型RNTI包括非终端特定的RNTI。
在本申请实施例中，第一类型RNTI可以是特殊类型的RNTI，可以包括C-RNTI、CS-RNTI、MCS-C-RNTI中一种或者多种，第二类型RNTI可以是非终端特定的RNTI，例如对应一组终端或所有终端的RNTI。
图7是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图7，本申请实施例提供的方法具体包括如下步骤：
步骤700、测量信道状态信息CSI。
步骤710、在关联DCI的格式为第一类型格式的情况下，针对信道状态信息参数集合反馈一组取值。
步骤720、在关联DCI的格式为第二类型格式的情况下，针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置；第一类型格式与所述第二类型格式包含的比特数目不同。
在一个示例性的实施方式中，终端可以对关联DCI的格式进行判断，例如，可以判断关联DCI包含的比特数目，通过比特数目确定出关联DCI的格式为第一类型格式还是第二类型格式，当为第一类型格式时，针对信道状态信息参数集合CSI反馈一组取值，当为第二类型格式时，针对信道状态信息参数集合CSI反馈预设组数的取值，预设组数由系统预定义或通过CSI反馈数目参数配置。
步骤730、发送对应信道状态信息参数集合的CSI反馈。
图8是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图8，本申请实施例提供的方法具体包括如下步骤：
步骤800、测量信道状态信息CSI。
步骤810、在第一时频域资源上检测到关联DCI的情况下，针对信道状态信息参数集合反馈一组取值。
步骤820、在第二时频域资源上检测到关联DCI的情况下，针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，预设组数由系统预定义或通过CSI反馈数目参数配置；第一时频域资源和所述第二时频域资源基于不同的配置信息设置。
在一个示例性的实施方式中，终端可以对关联DCI的时频域资源进行判断，例如，可以判断关联DCI时频域资源的配置信息的种类进行判断，例如，配置信息可以包括物理资源(Control Resource Set，CORESET)、搜索空间、聚合级别、盲检机会和资源元素组(Resource Element Group，REG)等。通过时频 域资源的配置信息确定出关联DCI的格式为第一时频域资源和第二时频域资源，当为第一时频域资源时，针对信道状态信息参数集合CSI反馈一组取值，当为第二时频域资源时，针对信道状态信息参数集合CSI反馈预设组数的取值，预设组数由系统预定义或通过CSI反馈数目参数配置。
步骤830、发送对应信道状态信息参数集合的CSI反馈。
进一步的，在上述申请实施例的基础上，所述配置信息至少包括以下一种：物理资源CORESET、搜索空间、聚合级别、盲检机会和资源元素组REG。
图9是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图9，本申请实施例提供的方法具体包括如下步骤：
步骤900、测量信道状态信息CSI。
步骤910、在调度数据类型标识指示调度数据为单播数据传输的情况下，针对信道状态信息参数集合反馈一组取值。
步骤920、在调度数据类型标识指示调度数据为非单播数据传输的情况下，针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，预设组数由系统预定义或通过CSI反馈数目参数配置。
在一个示例性的实施方式中，终端可以对关联DCI的指示调度数据类型标识进行判断，若调度数据类型标识为单播数据传输，DCI反馈对应信道状态信息参数集合的一组取值，若调度数据类型标识为多播或者广播等非单播数据传输，DCI反馈对应信道状态信息参数集合的预设组数的取值，预设组数由系统预定义或通过CSI反馈数目参数配置。
步骤930、发送对应信道状态信息参数集合的CSI反馈。
进一步的，在上述申请实施例的基础上，调度数据类型标识至少包括以下一种：载波指示、带宽部分(Bandwidth Part，BWP)指示、时域资源分配指示、 频域资源分配指示、解调参考信号DMRS序列相关信息指示、数据传输信道的扰码信息指示、数据类型指示、天线端口指示和优先级指示。
在本申请实施例中，可以通过载波指示、带宽部分BWP指示、时域资源分配指示、频域资源分配指示、解调参考信号DMRS序列相关信息指示、数据传输信道的扰码信息指示、数据类型指示、天线端口指示和优先级指示中的一种或者多种指示DCI的调度数据类型为单播数据传输还是非单播数据传输。
图10是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图10，本申请实施例提供的方法具体包括如下步骤：
步骤1010、测量信道状态信息CSI。
步骤1020、在接收到至少两个内容相同且索引不同的CSI反馈配置的情况下，针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
在一个示例性的实施方式中，当终端接收到至少两个内容相同的CSI反馈配置时，且这两个CSI反馈配置的索引不同，可以确定信道状态信息参数集合反馈多组取值，反馈取值的组数可以由系统预定义或通过CSI反馈数目参数配置。
步骤1030、发送对应信道状态信息参数集合的CSI反馈。
进一步的，在上述实施例的基础上，预设组数的取值按照从优到劣的顺序对应索引从小到大顺序或从大到小顺序的内容相同且索引不同的CSI反馈配置。
在本申请实施例中，在反馈CSI时，可以将反馈的信道状态信息的取值按照从优到劣的顺序选取，选择的信道状态信息可以从小到大的顺序或者从大到小的顺序对应内容相同且索引不同的CSI反馈配置。
图11是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申 请实施例是在上申请实施例基础上的具体化，参见图11，本申请实施例提供的方法具体包括如下步骤：
步骤1110、测量信道状态信息CSI。步骤1120、在接收到至少两个预设内容相同的CSI反馈配置的情况下，针对信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，预设组数由系统预定义或通过CSI反馈数目参数配置。
在一个示例性的实施方式中，当终端接收到的至少两个CSI反馈配置，且这俩个CSI反馈配置值包括至少两个内容相同，则可以确定信道状态信息参数集合反馈多组取值，反馈取值的组数可以由系统预定义或通过CSI反馈数目参数配置。
进一步的，在上述申请实施例的基础上，所述接收到至少两个预设内容相同的CSI反馈配置中的预设内容包括以下至少一种：CSI反馈格式、CSI反馈关联的信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS)资源、CSI反馈的测量载波、CSI反馈的测量BWP和CSI反馈的用途。
具体的，预设内容可以是CSI反馈中包括的内容，可以是CSI反馈格式、CSI反馈关联的CSI-RS资源、CSI反馈的测量载波、CSI反馈的测量BWP和CSI反馈的用途中的一种或者多种。
步骤1130、发送对应信道状态信息参数集合的CSI反馈。
图12是本申请实施例提供的另一种信道状态信息反馈方法的流程图，本申请实施例是在上申请实施例基础上的具体化，参见图12，本申请实施例提供的方法具体包括如下步骤：
步骤1200、根据波束判断信息确定信道状态信息测量资源的波束信息。
步骤1210、根据设置条件确定对应信道状态信息参数集合的CSI反馈。
其中，波束判断信息可以是用于判断终端测量信道状态信息的波束信息的 信息，可以包括下行数据传输信道的波束信息；调度下行数据传输信道的DCI的波束信息；接收到调度下行数据传输信道的DCI的盲检机会等。
具体的，终端可以根据下行数据传输信道的波束信息；调度下行数据传输信道的DCI的波束信息；接收到调度下行数据传输信道的DCI的盲检机会中的一种或者多种确定出波束信息。
进一步的，在上述申请实施例的基础上，所述波束判断信息包括以下至少一种：
下行数据传输信道的波束信息；调度下行数据传输信道的DCI的波束信息；接收到调度下行数据传输信道的DCI的盲检机会。
步骤1220、发送对应信道状态信息参数集合的CSI反馈。
进一步的，在上述申请实施例的基础上，所述下行数据传输信道的波束信息由以下至少一种确定：在调度所述下行数据传输信道的DCI中指示；在MAC层控制单元CE中指示；系统预定义；通过RRC信令指示。
进一步的，在上述申请实施例的基础上，所述下行数据传输信道，与所述信道状态信息测量资源存在关联，所述关联包括以下至少一种：所述下行数据传输信道与所述信道状态信息测量资源在相同载波上发送；所述下行数据传输信道与所述信道状态信息测量资源在相同BWP上发送；所述下行数据传输信道与所述信道状态信息测量资源在相同频域资源上发送；所述下行数据传输信道与所述信道状态信息测量资源的类型相同且所述类型为非单播类型，所述类型由RRC配置信令或调度所述下行数据传输信道的DCI指示；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同载波上发送；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同BWP上发送；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同频域资源上发送。
进一步的，在上述申请实施例的基础上，所述信道状态信息测量资源包括以下至少一种：周期CSI-RS资源、非周期CSI-RS资源、半持续CSI-RS资源。
在一个示例性的实施方式中，通过trigger state关联一个CSI-ReportConfig为例，基站通过RRC信令向终端指示CSI反馈数目参数，CSI反馈数目参数用于指示终端需要反馈的相关CSI Report中包含几个信道状态信息参数集合的取值，信道状态信息参数集合中包含一个或多个信道状态信息，如CQI、PMI、RI等，信道状态信息参数集合中包含的信道状态信息，可以是终端在相关CSI Report中需要反馈的所有信道状态信息的子集。例如，终端在相关CSI Report中需要反馈四个信道状态信息CRI、RI、PMI和CQI，信道状态参数集合包含PMI和CQI，那么对于不包含在信道状态信息参数集合中的其他信道状态信息，如这里的CRI、RI，终端在相关CSI Report中只要反馈1个取值就好；而对于包含在信道状态信息参数集合中的信道状态信息，如这里的PMI和CQI，终端需要根据CSI反馈数目参数的配置，来确定反馈几组取值。信道状态信息参数集合中包含哪些信道状态信息，可以由系统预定义或者基站半静态配置。具体地，可以针对每种反馈格式，由系统预定义或基站半静态配置其中哪些信道状态信息构成信道状态信息参数集合。进一步的，信道状态信息参数集合中如果包含多个信道状态信息，而这多个信道状态信息的确定彼此有依赖关系，例如，信道状态信息参数1取值的确定需要依赖信道状态信息参数2的取值，那么终端对于信道状态信息参数2必须反馈若干个不同的取值，在每个信道状态信息参数2取值下得到信道状态信息参数1的取值，从而终端得到多组{信道状态信息参数1，信道状态信息参数2}的取值，并反馈给基站。具体地，信道状态信息参数集合可以包括PMI和CQI，并且一个PMI取值和一个CQI取值对应，表示基于该PMI取值计算得到该CQI取值。
具体基站向终端指示CSI反馈数目参数的方法通过以下几种方法实现：
方法1：
由基站是否给终端配置对应CSI反馈数目参数的RRC信令决定。
如果基站给终端配置了对应CSI反馈数目参数的RRC信令，那么终端对于相关CSI Report中的信道状态信息参数集合中包含的所有信道状态信息，反馈N组取值。具体N可以等于一个系统预定义值，如等于2或3或4。进一步的，对一个信道状态信息的N个取值可以是最优的N个取值。最优的信道状态信息取值，指在一定误码率条件下，所能达到的最佳调制阶数、编码码率传输块大小中的一种或者多种。所述相关CSI Report，指基站配置的对应CSI反馈数目参数的RRC信令生效的目标CSI Report，可以是一个或多个CSI Report。
具体地，当信道状态信息参数集合中包含多个信道状态信息时，例如包含CQI和PMI，其中CQI取值的确定需要基于PMI取值，则UE要遍历所有PMI取值范围以获得对应各PMI取值的最优CQI取值，即{PMI取值n，最佳CQI取值}。如果PMI取值范围包括4个候选PMI取值，则UE将获得4组{PMI取值n，最佳CQI取值}，其中n为1至4。如果CSI反馈数数目参数指示终端针对信道状态信息参数集合反馈3组取值，则终端必须反馈用于PMI和CQI反馈的最佳的前3组{PMI取值n，最佳CQI取值}。进一步地，终端反馈的最优的3组{PMI取值n，最佳CQI取值}，其中，每组的‘PMI取值n’不同，或者每组的‘PMI取值n’属于不同的PMI候选集。不同PMI候选集中的PMI彼此正交。这样，基站可以获得更多的预编码信息，便于基站在调度一组用户时协调预编码权值。
如果基站没有给终端配置对应CSI反馈数目参数的RRC信令，那么终端对于相关CSI Report中的信道状态信息参数集合中包含的所有信道状态信息，只反馈1组取值，即终端对于相关CSI Report中需要反馈的所有信道状态信息，都只反馈1个取值。进一步的，这1组取值可以是最优的1组取值。在上述具体示例中，终端反馈最优的1组{PMI取值n，最佳CQI取值}。
方法2：
由基站给终端配置的对应CSI反馈数目参数的RRC信令决定。
基站给终端配置对应CSI反馈数目参数的RRC信令，该参数取值指示终端，对于相关CSI Report中信道状态信息参数集合中包含的所有信道状态信息，需要反馈几组取值。如果该参数指示为1，则终端对于相关CSI Report中信道状态信息参数集合中包含的所有信道状态信息，反馈1组取值。如果该参数指示为N，则终端对于相关CSI Report中信道状态信息参数集合中包含的所有信道状态信息，反馈N组取值，N大于1，例如N为2或3或4。N组取值的确定方法同方法1。
方法3：
由基站是否给终端配置对应CSI反馈数目参数的RRC信令以及如果配置了该信息，那么该信令的具体取值决定。
如果基站没有给终端配置对应CSI反馈数目参数的RRC信令，那么终端对于相关CSI Report中的信道状态信息参数集合中包含的所有信道状态信息，只反馈1组取值，即终端对于相关CSI Report中需要反馈的所有信道状态信息，都只反馈1个取值。进一步的，1个取值可以是最优的信道状态信息取值，最优的信道状态信息取值，指在一定误码率条件下，所能达到的最佳调制阶数、编码码率和传输块大小中的一种或多种。
基站给终端配置了对应CSI反馈数目参数的RRC信令，并且该参数指示为N，那么终端对于相关CSI Report中信道状态信息参数集合中包含的所有信道状态信息，需要反馈N组取值。N组取值的确定方法同方法1。
具体地，可以在RRC信元CSI-ReportConfig中引入对应反馈CSI数目参数的RRC信令。
在一个示例性的实施方式中，以trigger state关联多个CSI-ReportConfig为 例，基站通过给终端配置多个反馈内容和或反馈量计算配置要求完全相同但CSI-ReportConfig id不同的CSI-ReportConfig，来指示终端需要对一个信道状态信息参数集合中包含的所有信道状态信息反馈多组取值。信道状态信息参数集合包含哪些信道状态信息，可以由系统预定义或基站半静态配置或由CSI-ReportConfig中的reportQuantity或其他RRC信令配置，例如当CSI-ReportConfig中的reportQuantity包含PMI、CQI时，信道状态信息参数集合为PMI和CQI。终端对于不属于信道状态信息参数集合的信道状态信息仍然根据CSI-ReportConfig中的reportQuantity指示，仅反馈1个或指示数目个取值。
当终端识别到基站给自己配置的N个CSI-ReportConfig内容完全相同仅CSI-ReportConfig id不同时，N为大于1的整数，终端了解基站需要自己对一个信道状态信息参数集合中包含的所有信道状态信息反馈多个取值。根据系统预定义或基站的半静态配置，终端按照CSI-ReportConfig id从小到大或从大到小的顺序，对于信道状态信息参数集合中包含的信道状态信息，反馈从优到劣的取值，对于需要反馈的其他不属于信道状态信息参数集合中的信道状态信息，对于各CSI-ReportConfig反馈相同取值。
例如，基站给终端配置的CSI-ReportConfig 1、CSI-ReportConfig 3、CSI-ReportConfig 4中包含的反馈内容要求完全相同，那么终端就了解到自己需要根据这些CSI-ReportConfig的配置，对于某个信道状态信息参数集合中包含的信道状态信息，反馈多个取值，对于不属于信道状态信息参数集合的信道状态信息仍然根据CSI-ReportConfig中的reportQuantity指示，仅反馈1个或指定数目个取值。如果UE确定信道状态信息参数集合包含CQI和PMI，不属于信道状态信息参数集合的信道状态信息为信道状态信息参考信号资源序列CRI和RI，那么终端根据测量结果确定3组{CQI、PMI}取值，因此CQI取值的确定要依赖PMI取值，因此终端要保证这3组取值中的PMI取值不同，基于这样的原则，UE得到对应同一组{CRI、RI}下的3组{CQI、PMI}取值，即{CQI  1、PMI 1}、{CQI 2、PMI 2}和{CQI 3、PMI 3}。其中{CQI 1、PMI 1}对应终端认为能达到的最优调制方式、编码码率，作为对应CSI-ReportConfig 1的CSI反馈；其中{CQI 2、PMI 2}对应终端认为能达到的第二优调制方式、编码码率，作为对应CSI-ReportConfig 3的CSI反馈；其中{CQI 3、PMI 3}对应终端认为能达到的第三优调制方式、编码码率，作为对应CSI-ReportConfig 4的CSI反馈。因为CQI的计算需要依赖PMI取值，因此PMI 1、PMI 2、PMI 3互不相等，UE基于PMI 1取值得到CQI 1取值，基于PMI 3取值得到CQI 2取值，基于PMI 3取值得到CQI 3取值。CQI 1、CQI 2、CQI 3的取值可能相等或不等。
在一个示例性的实施方式中，通过DCI指示信道状态信息参数集合中信道状态信息反馈取值的组数为例，基站用触发CSI反馈的DCI或调度数据传输的DCI来显式或隐式指示终端对一个信道状态信息参数集合中包含的所有信道状态信息反馈1组还是多组取值。具体包括以下方法：
方法1：用加扰DCI的RNTI来指示
终端根据加扰DCI的RNTI来确定对信道状态信息参数集合中包含的所有信道状态信息反馈一组还是多组取值。
如果加扰DCI的RNTI为UE-specific RNTI，例如C-RNTI、CS-RNTI或MCS-C-RNTI等，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈1组取值。
如果加扰DCI的RNTI非UE-specific RNTI，例如是group-common RNTI，即多个用户都使用的RNTI，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈N组取值。N组取值如何得到，同实施例1、2。
方法2：用调度数据类型标识来指示
在DCI中会有一个或多个域可以指示DCI调度的数据传输是单播数据传输还是非单播数据传输，非单播数据传输可以是多播或广播数据传输。域可以是载波指示域、BWP指示域、时域资源分配指示域、频域资源分配指示域、解调参考信号(Demodulation Reference Signal,DMRS)序列相关信息指示域、数据传输信道的扰码信息指示、或数据类型指示域、天线端口指示、优先级指示等。
如果DCI的域指示调度单播数据传输，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈1组取值。
如果DCI的域调度非单播数据传输，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈N组取值。N组取值由系统预定义或通过CSI反馈数目参数配置。
方法4：用DCI format来指示
根据基站发送DCI使用的DCI format来隐式指示终端对一个信道状态信息参数集合中包含的所有信道状态信息反馈1组还是多组取值。
如果发送DCI使用的DCI format为类型1，其对应的payload为数值1，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈1组取值。
如果发送DCI使用的DCI format为类型2，其对应的payload为数值2，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈N组取值。N组取值如何得到，同
实施例1、2。
DCI format类型1和DCI format类型2不同，可以是系统预定义或基站半静态配置终端去盲检的。Payload数值1和payload数值2不同，可以是系统预定义或基站半静态配置的。
方法5：用发送DCI的时频资源来指示
基站在时频资源1上发送DCI还是在时频资源2上发送DCI，以此来隐式指示终端对一个信道状态信息参数集合中包含的所有信道状态信息反馈1组还是多组取值。时频资源1、时频资源2由系统预定义或基站半静态配置给终端，具体可以是特定的CORESET配置、搜索空间配置、聚合级别配置、盲检机会配置、发送DCI所使用的REG配置等。
如果基站在时频资源1上发送DCI并且终端在时频资源1上盲检到DCI，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈1组取值。
如果基站在时频资源1上发送DCI并且终端在时频资源1上盲检到DCI，那么终端认为DCI触发的CSI反馈中或DCI关联的CSI反馈中，对于信道状态信息参数集合中包含的所有信道状态信息反馈N组取值。N的值可以由系统预定义或通过CSI反馈数目参数配置。
在一个示例性的实施方式中，以通过CSI-RS资源与PDSCH的发送波束一致实现CSI-RS发送波束的增强为例，对于用于信道状态信息测量的周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，其发送波束信息可以和发送下行数据传输信道的波束信息存在关联。具体地，发送波束信息可以是准共址(Quasi Co-Location,QCL)信息等用于体现波束方向的信息。具体地，基站可以使用发送下行数据传输信道的波束信息来发送周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，从而实现让终端基于发送下行数据传输信道的波束信息来接收周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，使终端基于下行数据传输信道的波束信息来基于周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源进行信道状态信息测量。信道状态信息测量包括CQI、PMI等信息的测量。具体地，基站给终端配置用于特定频域资源上 信道状态信息测量的一个或多个周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，多个周期CSI-RS资源可以属于同一个周期CSI-RS资源Set，多个半持续CSI-RS资源可以属于同一个半持续CSI-RS资源Set，多个非周期CSI-RS资源可以属于同一个非周期CSI-RS资源Set。基站用RRC信令配置发送CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的频域资源，从而终端可以测量该频域资源上的信道状态信息。
基站在特定频域资源上调度下行数据传输信道，用DCI来调度，调度DCI可以在一组PDCCH盲检机会中的一个或多个机会上发送。DCI中会指示用于传输下行数据传输信道的频域资源。对于周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源波束信息的确定，采用以下方法至少之一：
基站在调度DCI或MAC CE中指示终端采用哪个波束信息来发送下行数据传输信道，那么相应的，基站也使用相同的波束信息来发送周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，那么终端就根据该波束信息来接收周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源。如果基站用RRC信令配置的周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的波束信息与调度DCI或MAC CE中指示的波束信息不同，则终端忽略RRC信令配置的周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的波束信息。终端会根据周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的发送频域资源配置，以及下行数据传输的发送频域资源配置，来确定周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源和哪个下行数据传输采用相同的发送波束信息。因此随着调度DCI或MAC CE中指示的波束信息的不同，相同频域资源上发送的周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源也可以采用不同的波束信息发送。
系统预定义或基站用RRC信令半静态配置发送周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的波束信息和发送调度DCI的PDCCH盲检 机会的对应关系。例如：基站半静态配置周期CSI-RS资源1对应一个特定窗长内的PDCCH盲检机会1，周期CSI-RS资源2对应一个特定窗长内的PDCCH盲检机会2，周期CSI-RS资源3对应一个特定窗长内的PDCCH盲检机会3。那么周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源就采用其关联的PDCCH盲检机会上盲检到的调度DCI里指示的波束信息来发送。如果终端在PDCCH盲检机会2上盲检到调度DCI，并且调度DCI中指示了波束信息2，则周期CSI-RS资源2就采用波束信息2来发送，终端采用相应的波束信息来接收周期CSI-RS资源2。因此随着调度DCI中指示的波束信息不同，相关联的周期CSI-RS资源可以采用不同的波束信息发送。
在另一个示例性的实施方式中，对于用于信道状态信息测量的周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，其发送波束信息可以和调度所述下行数据传输信道的调度DCI的发送波束信息存在关联。
具体地，基站在所述特定频域资源上发送的下行数据传输信道，用DCI来调度，所述调度DCI可以在一组PDCCH盲检机会中的一个或多个机会上发送。对于不同的PDCCH盲检机会，基站可以使用不同的波束信息来发送所述调度DCI。
系统预定义或基站半静态配置所述周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源与所述PDCCH盲检机会的对应关系。例如，基站用RRC信令半静态配置周期CSI-RS资源1对应一个窗长内PDCCH盲检机会1，周期CSI-RS资源2对应一个窗长内PDCCH盲检机会2，周期CSI-RS资源3对应一个窗长内PDCCH盲检机会3。那么基站会用在所述PDCCH盲检机会1上发送所述DCI的波束信息来发送所述周期CSI-RS资源1，用在所述PDCCH盲检机会2上发送所述DCI的波束信息来发送所述周期CSI-RS资源2，用在所述PDCCH盲检机会3上发送所述DCI的波束信息来发送所述周期CSI-RS资源3。如果基站对所述周期CSI-RS资源1配置的发送波束信息不等于在所述 PDCCH盲检机会1上发送所述DCI的波束信息，那么终端忽略基站对所述周期CSI-RS资源1配置的发送波束信息，而是采用接收所述关联PDCCH盲检机会的波束信息来接收周期CSI-RS资源1。
当基站确定要使用某个所述盲检机会来发送所述DCI，则基站使用所述盲检机会对应的波束信息，来发送所述关联的一个或多个周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源，如果基站用RRC信令配置所述周期CSI-RS资源、半持续CSI-RS资源或非周期CSI-RS资源的波束信息与所述PDCCH盲检机会对应的波束信息不同，则终端忽略RRC信令配置的所述周期CSI-RS资源的波束信息，而是根据所述盲检机会对应的波束信息，接收所述周期CSI-RS资源。下行数据传输信道，与周期CSI-RS资源、非周期CSI-RS资源、半持续CSI-RS资源等信道状态信息测量资源存在关联，所述关联包括以下至少一种：所述下行数据传输信道与所述信道状态信息测量资源在相同载波上发送；所述下行数据传输信道与所述信道状态信息测量资源在相同BWP上发送；所述下行数据传输信道与所述信道状态信息测量资源在相同频域资源上发送；所述下行数据传输信道与所述信道状态信息测量资源的类型相同且所述类型为非单播类型，所述类型由RRC配置信令或调度所述下行数据传输信道的DCI指示；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同载波上发送；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同BWP上发送；调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同频域资源上发送。
图13是本申请实施例提供的一种信道状态信息反馈装置的结构示意图，可执行本申请任意实施例提供的信道状态信息反馈方法，具备执行方法相应的功能模块和有益效果。该装置可以由软件和/或硬件实现，一般集成在远程服务器中，具体包括：信息测量模块131和反馈发送模块132，
信息测量模块131，用于测量信道状态信息CSI。
反馈发送模块132，用于发送对应所述按照信道状态信息参数集合的所述CSI反馈。
本申请实施例，通过信息测量模块测量信道状态信息，反馈发送模块将获取到的信道状态信息反馈到基站，实现了信道状态信息的反馈，通过信道状态信息参数集合丰富反馈内容，增强信道状态信息的测量，提高基站在广播多播业务下的调度决策的准确性。
进一步的，在上述申请实施例的基础上，所述装置还包括：
反馈确定模块，用于根据设置条件确定对应所述信道状态信息参数集合的CSI反馈。
进一步的，在上述申请实施例的基础上，所述反馈确定模块中的设置条件至少包括以下一种：CSI反馈数目参数的配置情况；CSI反馈数目参数的参数取值；接收关联下行控制信息DCI的加扰情况；关联DCI中的调度数据类型标识；接收关联DCI的格式；接收关联DCI的时频域资源；接收到至少两个内容相同且索引不同的CSI反馈配置；接收到至少两个预设内容相同的CSI反馈配置，其中，预设内容包括至少一种所述CSI反馈配置内容。
进一步的，在上述实施例的基础上，所述反馈发送模块132中的CSI反馈包括至少一个CSI报告report，所述CSI反馈的CSI反馈数目参数通过无线资源控制层RRC信令配置。
进一步的，在上述实施例的基础上，所述反馈发送模块132中的CSI反馈的CSI反馈数目参数针对特定CSI report配置，或者，所述CSI反馈数目参数针对所有CSI report配置。
进一步的，在上述实施例的基础上，所述反馈发送模块132中的信道状态信息参数集合包括一个信道状态信息，所述信道状态信息基于系统预定义配置和/或RRC信令配置。
进一步的，在上述实施例的基础上，所述反馈确定模块包括：第一取值单元，用于在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈一组取值的情况下，针对所述信道状态信息参数集合反馈一组最优的取值。
进一步的，在上述实施例的基础上，所述反馈确定模块包括：第二取值单元，用于在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈至少两组取值的情况下，针对所述信道状态信息参数集合反馈预设组数的最优的取值，其中，所述预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
进一步的，在上述实施例的基础上，第一取值单元和/或第二取值单元中的最优包括：预设误码率条件下对应的调制阶数、编码码率和传输块大小中的一种或者多种。
进一步的，在上述实施例的基础上，所述反馈发送模块132中的CSI反馈中的关联DCI包括触发CSI反馈的DCI和/或调度数据传输的DCI。
进一步的，在上述实施例的基础上，所述反馈确定模块具体用于：在加扰所述关联DCI的无线网络临时标识RNTI为第一类型RNTI的情况下，针对所述信道状态信息参数集合反馈一组取值；在加扰所述关联DCI的无线网络临时标识RNTI为第二类型RNTI的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
进一步的，在上述实施例的基础上，所述第一类型RNTI至少包括C-RNTI、CS-RNTI、MCS-C-RNTI中一种，所述第二类型RNTI包括非终端特定的RNTI。
进一步的，在上述实施例的基础上，所述反馈确定模块具体用于：在所述调度数据类型标识指示调度数据为单播数据传输的情况下，针对所述信道状态信息参数集合反馈一组取值；在所述调度数据类型标识指示调度数据为非单播数据传输的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其 中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
进一步的，在上述实施例的基础上，调度数据类型标识至少包括以下一种：载波指示、带宽部分BWP指示、时域资源分配指示、频域资源分配指示、DMRS序列相关。
进一步的，在上述实施例的基础上，所述反馈确定模块具体用于：在所述关联DCI的格式为第一类型格式的情况下，针对所述信道状态信息参数集合反馈一组取值；在所述关联DCI的格式为第二类型格式的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置；所述第一类型格式与所述第二类型格式包含的比特数目不同。
进一步的，在上述实施例的基础上，所述反馈确定模块具体用于:在第一时频域资源上检测到所述关联DCI的情况下，针对所述信道状态信息参数集合反馈一组取值；在第二时频域资源上检测到所述关联DCI的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置；所述第一时频域资源和所述第二时频域资源基于不同的配置信息设置。
进一步的，在上述实施例的基础上，所述配置信息至少包括以下一种：物理资源CORESET、搜索空间、聚合级别、盲检机会和资源元素组REG。
进一步的，在上述实施例的基础上，所述反馈确定模块具体用于:在接收到至少两个内容相同且索引不同的CSI反馈配置的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
进一步的，在上述实施例的基础上，所述接收到至少两个预设内容相同的CSI反馈配置中的预设内容包括以下至少一种：
CSI反馈格式、CSI反馈关联的CSI-RS资源、CSI反馈的测量载波、CSI反馈的测量BWP和CSI反馈的用途。
进一步的，在上述实施例的基础上，预设组数的取值按照从优到劣的顺序对应索引从小到大顺序或从大到小顺序的内容相同且索引不同的CSI反馈配置。
进一步的，在上述实施例的基础上，所述信息测量模块131包括：
束波信息单元，用于根据波束判断信息确定信道状态信息测量资源的波束信息。
进一步的，在上述实施例的基础上，所述波束判断信息包括以下至少一种：
下行数据传输信道的波束信息；
调度下行数据传输信道的DCI的波束信息；
接收到调度下行数据传输信道的DCI的盲检机会。
进一步的，在上述实施例的基础上，下行数据传输信道的波束信息由以下至少一种确定：
在调度所述下行数据传输信道的DCI中指示；
在MAC层控制单元CE中指示；
系统预定义；
通过RRC信令指示。
进一步的，在上述实施例的基础上，下行数据传输信道，与所述信道状态信息测量资源存在关联，所述关联包括以下至少一种：
所述下行数据传输信道与所述信道状态信息测量资源在相同载波上发送；
所述下行数据传输信道与所述信道状态信息测量资源在相同BWP上发送；
所述下行数据传输信道与所述信道状态信息测量资源在相同频域资源上发送；
所述下行数据传输信道与所述信道状态信息测量资源的类型相同且所述类型为非单播类型，所述类型由RRC配置信令或调度所述下行数据传输信道的DCI指示；
调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同载波上发送；
调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同BWP上发送；
调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同频域资源上发送。
进一步的，在上述实施例的基础上，信道状态信息测量资源包括以下至少一种：周期CSI-RS资源、非周期CSI-RS资源、半持续CSI-RS资源。
图14是本申请实施例提供的一种设备的结构示意图，，如图10所示，该设备包括处理器140、存储器141、输入装置142和输出装置143；设备中处理器140的数量可以是一个或多个，图14中以一个处理器140为例；设备处理器140、存储器141、输入装置142和输出装置143可以通过总线或其他方式连接，图14中以通过总线连接为例。
存储器141作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请实施例中的信道状态信息反馈装置对应的模块(信息测量模块131和反馈发送模块132)。处理器140通过运行存储在存储器141中的软件程序、指令以及模块，从而执行设备的各种功能应用以及数据处理，即实现上述的方法。
存储器141可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器141可以包括高速随机存取存储器，还可以 包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器141可进一步包括相对于处理器140远程设置的存储器，这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置142可用于接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的键信号输入。输出装置143可包括显示屏等显示设备。
本申请实施例还提供一种计算机可读存储介质，计算机可执行指令在由计算机处理器执行时用于执行一种信道状态信息反馈方法，该方法包括：
测量信道状态信息CSI；
发送对应所述信道状态信息参数集合的所述CSI反馈。
当然,本申请实施例所提供的一种包含计算机可执行指令的存储介质,其计算机可执行指令不限于如上所述的方法操作，还可以执行本申请任意实施例所提供的信道状态信息反馈方法中的相关操作。
以上所述，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
本领域内的技术人员应明白，术语用户端涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Industry Standard Architecture，ISA) 指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储器(Random Access Memory，RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disc，CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Process，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。

Claims (30)

  1. 一种信道状态信息反馈方法，包括：
    测量信道状态信息CSI；
    发送对应信道状态信息参数集合的CSI反馈。
  2. 根据权利要求1所述的方法，还包括：
    根据设置条件确定对应所述信道状态信息参数集合的CSI反馈。
  3. 根据权利要求2所述的方法，其中，所述设置条件至少包括以下一种：
    CSI反馈数目参数的配置情况；
    CSI反馈数目参数的参数取值；
    接收关联下行控制信息DCI的加扰情况；
    关联DCI中的调度数据类型标识；
    接收关联DCI的格式；
    接收关联DCI的时频域资源；
    接收到至少两个内容相同且索引不同的CSI反馈配置；
    接收到至少两个预设内容相同的CSI反馈配置，其中，预设内容包括至少一种所述CSI反馈配置内容。
  4. 根据权利要求2所述的方法，其中，所述CSI反馈包括至少一个CSI报告report，所述CSI反馈的CSI反馈数目参数通过无线资源控制层RRC信令配置。
  5. 根据权利要求4所述的方法，其中，所述CSI反馈的CSI反馈数目参数针对特定CSI report配置，或者，所述CSI反馈数目参数针对所有CSI report配置。
  6. 根据权利要求2所述的方法，其中，所述信道状态信息参数集合包括至少一个信道状态信息，所述信道状态信息基于系统预定义和RRC信令中的至少之一配置。
  7. 根据权利要求2所述的方法，其中，在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈一组取值的情况下，针对所述信道状态信息 参数集合反馈一组最优的取值。
  8. 根据权利要求2所述的方法，其中，在所述CSI反馈的CSI反馈数目参数指示信道状态信息参数集合反馈至少两组取值的情况下，针对所述信道状态信息参数集合反馈预设组数的最优的取值，其中，所述预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
  9. 根据权利要求8所述的方法，其中，在所述信道状态信息参数集合至少包括两个信道状态信息，多个所述信道状态信息的取值之间存在依赖关系的情况下，依赖信道状态信息的取值基于对应的被依赖信道状态信息的至少两个取值确定。
  10. 根据权利要求7或8所述的方法，其中，所述最优包括以下至少一种：预设误码率条件下对应的调制阶数、编码码率和传输块大小。
  11. 根据权利要求2所述的方法，其中，所述CSI反馈的关联DCI包括触发CSI反馈的DCI和调度数据传输的DCI中的至少之一。
  12. 根据权利要求3所述的方法，其中，根据所述接收关联下行控制信息DCI的加扰情况确定对应信道状态信息参数集合的CSI反馈，包括：
    在加扰所述关联DCI的无线网络临时标识RNTI为第一类型RNTI的情况下，针对所述信道状态信息参数集合反馈一组取值；
    在加扰所述关联DCI的无线网络临时标识RNTI为第二类型RNTI的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
  13. 根据权利要求12所述的方法，其中，所述第一类型RNTI至少包括小区无线网络临时标识C-RNTI、配置的调度无线网络临时标识CS-RNTI、模块化编码方案小区无线网络临时标识MCS-C-RNTI中一种，所述第二类型RNTI包括非终端特定的RNTI。
  14. 根据权利要求3所述的方法，其中，根据所述关联DCI中的调度数据类型标识确定对应信道状态信息参数集合的CSI反馈，包括：
    在所述调度数据类型标识指示调度数据为单播数据传输的情况下，针对所述信道状态信息参数集合反馈一组取值；
    在所述调度数据类型标识指示调度数据为非单播数据传输的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
  15. 根据权利要求3或14所述的方法，其中，所述调度数据类型标识至少包括以下一种：
    载波指示、带宽部分BWP指示、时域资源分配指示、频域资源分配指示、解调参考信号DMRS序列相关信息指示、数据传输信道的扰码信息指示、数据类型指示、天线端口指示和优先级指示。
  16. 根据权利要求3所述的方法，其中，根据接收所述关联DCI的格式确定对应信道状态信息参数集合的CSI反馈，包括：
    在所述关联DCI的格式为第一类型格式的情况下，针对所述信道状态信息参数集合反馈一组取值；
    在所述关联DCI的格式为第二类型格式的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置；
    所述第一类型格式与所述第二类型格式包含的比特数目不同。
  17. 根据权利要求3所述的方法，其中，根据接收所述关联DCI的时频域资源确定对应信道状态信息参数集合的CSI反馈，包括：
    在第一时频域资源上检测到所述关联DCI的情况下，针对所述信道状态信息参数集合反馈一组取值；
    在第二时频域资源上检测到所述关联DCI的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置；
    所述第一时频域资源和所述第二时频域资源基于不同的配置信息设置。
  18. 根据权利要求17所述的方法，其中，所述配置信息至少包括以下一种：物理资源CORESET、搜索空间、聚合级别、盲检机会和资源元素组REG。
  19. 根据权利要求3所述的方法，其中，所述接收到至少两个预设内容相同的CSI反馈配置中的预设内容包括以下至少一种：
    CSI反馈格式、CSI反馈关联的信道状态信息参考信号CSI-RS资源、CSI反馈的测量载波、CSI反馈的测量BWP和CSI反馈的用途。
  20. 根据权利要求3所述的方法，其中，在接收到至少两个内容相同且索引不同的CSI反馈配置的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
  21. 根据权利要求3所述的方法，其中，在接收到至少两个预设内容相同的CSI反馈配置的情况下，针对所述信道状态信息参数集合反馈预设组数的取值，其中，预设组数为大于1的正整数，所述预设组数由系统预定义或通过CSI反馈数目参数配置。
  22. 根据权利要求20或21所述的方法，其中，所述预设组数的取值按照从优到劣的顺序对应索引从小到大顺序或从大到小顺序的内容相同且索引不同的CSI反馈配置。
  23. 根据权利要求1所述的方法，其中，所述测量信道状态信息CSI，包括：
    根据波束判断信息确定信道状态信息测量资源的波束信息。
  24. 根据权利要求23所述的方法，其中，所述波束判断信息包括以下至少一种：
    下行数据传输信道的波束信息；
    调度下行数据传输信道的DCI的波束信息；
    接收到调度下行数据传输信道的DCI的盲检机会。
  25. 根据权利要求24所述的方法，其中，所述下行数据传输信道的波束信息由以下至少一种确定：
    在调度所述下行数据传输信道的DCI中指示；
    在媒体接入控制MAC层控制单元CE中指示；
    系统预定义；
    通过RRC信令指示。
  26. 根据权利要求24所述的方法，其中，所述下行数据传输信道与所述信道状态信息测量资源存在关联，所述关联包括以下至少一种：
    所述下行数据传输信道与所述信道状态信息测量资源在相同载波上发送；
    所述下行数据传输信道与所述信道状态信息测量资源在相同BWP上发送；
    所述下行数据传输信道与所述信道状态信息测量资源在相同频域资源上发送；
    所述下行数据传输信道与所述信道状态信息测量资源的类型相同且所述类型为非单播类型，所述类型由RRC配置信令或调度所述下行数据传输信道的DCI指示；
    调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同载波上发送；
    调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同BWP上发送；
    调度所述下行数据传输信道的DCI与所述信道状态信息测量资源在相同频域资源上发送。
  27. 根据权利要求23所述的方法，其中，所述信道状态信息测量资源包括以下至少一种：周期CSI-RS资源、非周期CSI-RS资源、半持续CSI-RS资源。
  28. 一种信道状态信息反馈装置，包括：
    信息测量模块，设置为测量信道状态信息CSI；
    反馈发送模块，设置为发送对应所述按照信道状态信息参数集合的所述CSI反馈。
  29. 一种设备，包括：
    至少一个处理器；
    存储器，设置为存储至少一个程序；
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-27中任一所述的信道状态信息反馈方法。
  30. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-27中任一所述的信道状态信息反馈方法。
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