WO2022083508A1 - Procédé et appareil de rapport d'informations d'état de canal, et terminal - Google Patents

Procédé et appareil de rapport d'informations d'état de canal, et terminal Download PDF

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Publication number
WO2022083508A1
WO2022083508A1 PCT/CN2021/124019 CN2021124019W WO2022083508A1 WO 2022083508 A1 WO2022083508 A1 WO 2022083508A1 CN 2021124019 W CN2021124019 W CN 2021124019W WO 2022083508 A1 WO2022083508 A1 WO 2022083508A1
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WIPO (PCT)
Prior art keywords
csi
csi report
report
target
cri
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PCT/CN2021/124019
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English (en)
Chinese (zh)
Inventor
王臣玺
宋扬
孙鹏
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维沃移动通信有限公司
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Publication of WO2022083508A1 publication Critical patent/WO2022083508A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application belongs to the technical field of wireless communication, and in particular relates to a method, device and terminal for reporting channel state information.
  • NR 5G New Radio
  • a multi-transmitting and receiving point/multi-antenna panel (multi-TRP/multi-Panel) communication scenario is proposed to enhance the reliability and throughput performance of transmission.
  • the terminal can Receive the same data or different data from multiple TRPs.
  • the group-based beam reporting scheme is adopted, although the two CSI-RS resource indications in the Channel State Information (CSI) report can be guaranteed
  • the transmit beam indicated by (CSI-Reference Signal Resource Indicator, CRI)/Synchronization Signal and PBCH block Resource Indicator (SSB RI) can be received by the terminal at the same time. Limiting, so that two CRIs/SSBRIs reported by CSI may come from the same TRP, so that multiple TRPs cannot be sent at the same time.
  • neither the group-based beam reporting scheme nor the non-group-based beam reporting scheme can realize simultaneous transmission of multiple TRPs/panels among multiple TRPs.
  • the embodiments of the present application provide a method, device and terminal for reporting channel state information, which can enhance the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs.
  • a first aspect provides a method for reporting channel state information, executed by a terminal, the method includes: selecting one or more target resources from each target resource group; wherein the target resource group is based on the received resources The indication information is determined; the first channel state information CSI report is determined according to each of the target resources; the first CSI report is fed back.
  • a method for reporting channel state information includes: sending resource indication information to a terminal, where the resource indication information is used to indicate multiple target resource groups to the terminal, so that The terminal reports the first CSI report based on the multiple target resource groups, and each of the target resource groups corresponds to a different target sending and receiving point TRP.
  • an apparatus for reporting channel state information includes: a selection module, configured to select one or more target resources from each target resource group; wherein the target resource group is based on the received Resource indication information is determined; a determination module is used to determine a first channel state information CSI report according to each of the target resources; a feedback module is used to feed back the first CSI report.
  • an apparatus for reporting channel state information comprising: a sending module configured to send resource indication information to a terminal, where the resource indication information is used to indicate multiple target resource groups to the terminal, so that all The terminal reports the first CSI report based on the multiple target resource groups, and each of the target resource groups corresponds to a different target sending and receiving point TRP; transceiver.
  • a terminal in a fifth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a network side device in a sixth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the second aspect when executed.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect, or the The steps of the method of the second aspect.
  • a chip in an eighth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, and implements the method described in the first aspect. the method described, or implement the method described in the second aspect.
  • a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The steps of the method according to the first aspect are implemented when the processor is executed, or the steps of the method according to the second aspect are implemented when the program or instructions are executed by the processor.
  • the terminal can determine the target resource group according to the resource indication information, and then select one or more target resources from each target resource group to realize the feedback of the CSI report, thereby enabling the terminal to report to the target TRP
  • the target resource in the CSI report corresponds to the CSI-RS resource of the target TRP, etc., thereby effectively enhancing the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs.
  • FIG. 1 is a block diagram of a wireless communication system provided by an exemplary embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for reporting channel state information provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of a CSI report feedback principle provided by an exemplary embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for reporting channel state information provided by another exemplary embodiment of the present application.
  • FIG. 5a and FIG. 5b are a schematic diagram and a sequence diagram of a CSI report feedback principle provided by an exemplary embodiment of the present application, respectively.
  • FIG. 6a and FIG. 6b are a schematic diagram and a sequence diagram of a CSI report feedback principle provided by another exemplary embodiment of the present application, respectively.
  • FIG. 7a is a timing diagram of a CSI report feedback provided by yet another exemplary embodiment of the present application.
  • FIG. 7b is a timing diagram of a CSI report feedback provided by yet another exemplary embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a method for reporting channel state information provided by another exemplary embodiment of the present application.
  • 9a, 9b, 9c, and 9d are schematic diagrams of a report delay window provided by an exemplary embodiment of the present application, respectively.
  • FIG. 10 is a schematic flowchart of a method for reporting channel state information provided by another exemplary embodiment of the present application.
  • FIG. 11a, FIG. 11b, and FIG. 11c are respectively CSI report feedback timing diagrams under different CSI processing windows provided by an exemplary embodiment of the present application.
  • FIG. 12 is a schematic flowchart of a method for reporting channel state information provided by another exemplary embodiment of the present application.
  • FIG. 13a and FIG. 13b are respectively block diagrams of an apparatus for reporting channel state information provided by an exemplary embodiment of the present application.
  • FIG. 14a and FIG. 14b are respectively block diagrams of an apparatus for reporting channel state information provided by another exemplary embodiment of the present application.
  • FIG. 15 is a block diagram of a communication device provided by an exemplary embodiment of the present application.
  • FIG. 16 is a block diagram of a terminal provided by an exemplary embodiment of the present application.
  • FIG. 17 is a block diagram of a network side device provided by an exemplary embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the description below, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation , 6G) communication system.
  • 6th generation 6th Generation
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), PDA, netbook, ultra-mobile personal computer (UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, TRP Or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary, it should be noted that in the embodiment of this application, only the base station in the NR system is used as an example, but The specific type of the base station is not limited.
  • FIG. 2 it is a schematic flowchart of a method 200 for reporting channel state information provided by an exemplary embodiment of the present application.
  • the method 200 can be applied to but not limited to a terminal, and can be specifically executed by hardware and/or software installed in the terminal .
  • the method 200 includes at least the following steps.
  • S210 Select one or more target resources from each target resource group.
  • the target resources may include at least CSI-RS resources and/or SSB resources and the like.
  • the CSI-RS resources include at least one of periodic CSI-RS, aperiodic CSI-RS resources, and semi-persistent CSI-RS resources, and the SSB resources are periodic resources.
  • the time-domain characteristics of each target resource group may be any of the following (1)-(5).
  • the CSI-RS resources or SSB resources of each group are periodic.
  • the CSI-RS resources of some groups are configured as periodic or SS/PBCH block resources, and the CSI-RS resources of other groups are configured as semi-persistent.
  • the CSI-RS resources of some groups are configured as periodic or SS/PBCH block resources, and the CSI-RS resources of other groups are configured as aperiodic.
  • the CSI-RS resources of each group are configured as semi-persistent.
  • the CSI-RS resources of some groups are configured as semi-persistent, and the CSI-RS resources of other groups are configured as aperiodic.
  • Each of the target resource groups corresponds to a different target TRP, and the target TRP is the TRP for which the terminal reports the CSI report.
  • the target resource group is the TRP for which the terminal reports the CSI report.
  • the beam corresponding to the target resource such as CRI, SSB RI
  • the simultaneous transmission between multiple TRPs can be improved. transmission performance.
  • the terminal may determine the target resource group associated with each target TRP according to the control resource set index (CORESETPoolindex).
  • CORESETPoolindex the control resource set index
  • S-DCI single-DCI
  • the terminal since there is no definition of CORESETPoolindex, the terminal only knows that the network side device is configured with multiple target resource groups, but does not know the corresponding relationship between the target resource group and the target TRP. However, considering that the terminal is equipped with multiple receiving panels, the terminal can still receive multiple CSI-RSs simultaneously.
  • the target resource group may be determined according to the received resource indication information.
  • the network side device may configure N target resources, and indicate M groups of target resource groups to the terminal through the resource indication information, where N ⁇ M.
  • each of the target resource groups may include a preset number of target resources, and the preset number is a round-up of N/M, or the preset number is a round-down of N/M, wherein , N is the total number of target resources configured by the network side device, and M is the total number of the target resource groups.
  • the resource indication information may be obtained through radio resource control (Radio Resource Control, RRC), medium access control control element (Medium Access Control-Control Element, MAC CE) or downlink control information (Downlink Control Information, DCI) transmission.
  • RRC Radio Resource Control
  • Medium Access Control-Control Element Medium Access Control-Control Element
  • DCI Downlink Control Information
  • S220 Determine the first channel state information CSI report according to each of the target resources.
  • the first CSI report may include CSI-RS Resource Indicator (CRI), SSB Resource Indicator (SSBRI), Layer 1-Reference Signal Received Power (L1-RSRP), Layer 1-Signal Add at least one of Interference and Noise Ratio (L1-SINR), Precoding Matrix Indicator (PMI), Channel Quality Indicator (CQI), and Rank Indicator (RI).
  • CRI CSI-RS Resource Indicator
  • SSBRI SSB Resource Indicator
  • L1-RSRP Layer 1-Reference Signal Received Power
  • L1-SINR Layer 1-Signal Add at least one of Interference and Noise Ratio
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indicator
  • RI Rank Indicator
  • the beam report mentioned in the subsequent embodiments is a format of CSI report. Similar to the CSI report, the beam report may also include but be limited to CRI, SSBRI, L1-RSRP, L1 -S
  • the terminal can simultaneously receive O target reference signals.
  • the first CSI report may include multiple target resources, that is, the terminal may feed back multiple target resources, such as CRI/SSB RI, etc. , one target resource corresponds to one target resource group, so as to ensure that the terminal can receive multiple CSI-RS reference signals or/and SSB synchronization signals at the same time.
  • the terminal will select 1 or 2 CRIs from the target resource group associated with it, respectively, to determine the CSI report (i.e. the first CSI report), and report to its corresponding target TRP. Since the CRIs reported by the terminal to a certain target TRP all correspond to a certain CSI-RS resource of the TRP, the CRIs reported to different target TRPs satisfy the condition for simultaneous transmission.
  • the terminal determines a target resource group according to the resource indication information, and then selects one or more target resources from each target resource group to realize the feedback of the CSI report.
  • the configuration method makes the target resources in the CSI report reported by the terminal to the target TRP correspond to the CSI-RS resources of the target TRP, etc., thereby effectively enhancing the simultaneous transmission capability of multiple TRPs/panels between multiple TRPs, such as simultaneous reception by the terminal. capability, simultaneous transmission capability of multiple TRPs, etc.
  • FIG. 4 it is a schematic flowchart of a method 400 for reporting channel state information provided by an exemplary embodiment of the present application.
  • the method 400 can be applied to but not limited to a terminal, and can be specifically executed by hardware and/or software installed in the terminal .
  • the method 400 includes at least the following steps.
  • S410 Select one or more target resources from each target resource group.
  • the implementation process in S410 may refer to the detailed description in the foregoing S210.
  • one or more target resources are selected from each target resource group as described in S410.
  • the implementation process may include any of the following (1)-(3).
  • the second CSI report is also determined based on the target resource group, and the feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the one-to-one pairing method includes corresponding position pairing and cross-position pairing.
  • one or more target resources are selected from each target resource group in a complete pairing manner.
  • the first CSI report in addition to referring to the detailed description in the foregoing S220, in a possible implementation manner, in the case that the first CSI report includes the target beam selected by the terminal and needs to be reported , the first CSI report needs to satisfy at least one of the following conditions (1)-(3).
  • At least one CRI combination is simultaneously received by the terminal.
  • the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the manner of associating the CSI reports with each other may include: when the network side device configures the CSI reports, the association is performed by setting the same ID.
  • the one-to-one pairing method, the one-to-many pairing method, or the complete pairing method as described in S410 may be adopted. There is no restriction on this.
  • the first CSI report is a basic beam report.
  • the predetermined basic beam may be the second CSI report.
  • the target beam may be determined according to at least one of the following (1) and (2).
  • the uplink transmission may include a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH), and the downlink transmission may include a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • the data associated with the second CSI report is The first CSI report satisfies at least one of the following conditions (1)-(3).
  • the CRI included in the first CSI report is at least partially the same as the CRI included in the second CSI report.
  • the designated CRI in the first CSI report and the designated CRI in the second CSI report are selected The terminal receives at the same time.
  • the specified content included in the first CSI report is determined according to a predetermined transmission scheme assumption, and the specified content is CRI, PMI, RI, and CQI in the first CSI report. one or more of.
  • the predetermined transmission scheme is assumed to include non-coherent joint transmission (NCJT) or dynamic transmission point selection (DPS).
  • NCJT non-coherent joint transmission
  • DPS dynamic transmission point selection
  • the process of determining the specified content included in the first CSI report according to a predetermined transmission scheme assumption includes: according to the first specified content in the first CSI report, and/or the second specified content
  • the first specified content in the CSI report is to determine the target content, wherein the first specified content is one or more of CRI, PMI, RI, and CQI; replace the first specified content in the first CSI report for the target content.
  • the first CSI report includes the first specified content CRI is A1
  • the CQI is B1
  • the second CSI report associated with the first CSI report includes The CRI of the first specified content is A2, and the CQI is B2, then the joint CQI of the target content calculated according to A1 and A2 is B3, then B1 in the first CSI report can be replaced with B3, and the replaced first CSI can be fed back Report.
  • the predetermined transmission scheme assumption may be indicated by any one of the following manners (1)-(3).
  • the implementation process in S430 may refer to the detailed description in the foregoing S230.
  • the implementation process of S430 may include: in accordance with the one-to-one pairing manner, the one-to-many pairing manner, or the In the case of beam pairing in a complete pairing manner, the layer 1-reference signal received power L1-RSRP is reported, and the second L1-RSRP is reported in a differential manner.
  • the first L1-RSRP is the maximum value among multiple L1-RSRPs corresponding to the successfully paired CRIs
  • the second L1-RSRP is the first LI-RSRP among the multiple LI-RSRPs LI-RSRP other than LI-RSRP.
  • the predetermined beam may be set according to requirements, for example, a beam with a high L1-RSRP value may be selected as the predetermined beam.
  • the terminal behavior can be defined as follows: For some beams that can be received at the same time, the data carried by them is normally received, and for the part that cannot be received at the same time. The terminal can receive the data carried by the predetermined beam.
  • the terminal can select 2 CRIs for reporting.
  • the terminal moves from left to right between time t1-t2.
  • the terminal side selects two CRIs from all CSI-RS resources (CSI-RS#1 ⁇ 3) in the CSI resource setting associated with Report#1 according to the measurement results to report to TRP1, such as CRI#1 and CRI#2 are selected as shown in the first row of Table 1.
  • the remaining one of the two CRIs may be selected as a transmit beam for PDSCH transmission according to certain rules (eg, selection based on the L1-RSRP value).
  • the terminal side selects two CRIs from all CSI-RS resources (CSI-RS#4-6) in the CSI resource setting associated with Report#2 according to the measurement results to report to TRP2.
  • the terminal needs to select a beam that satisfies the following conditions:
  • the CRI selected in the associated CSI report 1 (eg, the aforementioned second CSI report) is combined with the CRI selected in the associated CSI report 2 (eg, the aforementioned first CSI report) (eg, one-to-one pairing, one-to-many pairing) mode, complete pairing mode), there is at least one CRI combination that can be received by the terminal at the same time.
  • the terminal determines the reporting beams CRI#1 and CRI#2 according to the above conditions after Report#1 is initiated.
  • Report#2 the terminal will select CRI#1 and CRI#2 from CRI#4-6 according to the beam content in Report#1, and then there are multiple combinations that satisfy the two CRIs received at the same time.
  • the specific relationship corresponding to the beam can be given as an example as follows:
  • the beams that can be reported are (CRI#5, CRI#6) or (CRI#5, CRI#4).
  • the beams that can be reported are (CRI#6, CRI#5) or (CRI#4, CRI#5).
  • report2 can select two from CRI#6, CRI#5, and CRI#4 according to certain rules for reporting, such as selecting L1- CRI with higher RSRP; for CRI#1 in report1, report2 will only report CRI#5.
  • selection can be made again according to certain rules, for example, a combination with a high L1-RSRP is selected.
  • the beam content of each CSI report can be simultaneously received by the terminal and It comes from different TRPs, and the beam reports can be shared between TRPs through an ideal backhaul line, so that it can realize simultaneous transmission of multiple TRPs.
  • beam reporting is usually performed to two TRPs respectively. This example 2 can improve the probability that the beams respectively reported to the two TRPs satisfy the simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs under the non-ideal backhaul line.
  • the dashed arrows represent the initiation of CSI reporting and the solid arrows represent the CSI-RS signal.
  • the terminal selects a CRI from all CSI-RS resources associated with each CSI resource setting according to the measurement results. Beam pairs received by the terminal, and then the terminal selects (CRI#1 and CRI#3) according to the measurement results of each group of beam pairs to report to TRP1, as shown in the first row in Table 2.
  • TRP1 receives the CSI report, according to the CSI-RS resource group to which the CRI belongs, TRP1 can determine that the CSI-RS resource indication belonging to itself is CRI#1 and the transmission beam.
  • the terminal measures and counts 4 beam pairs that can be simultaneously received by the terminal, and then the terminal needs to select a beam pair (CRI#x, CRI#y) that satisfies at least one of the following conditions:
  • (CRI#x, CRI#y) is combined with (CRI#1, CRI#3), among 4 combinations (CRI#x, CRI#1), (CRI#x, CRI#3), (CRI#1, At least one of CRI#y) and (CRI#3, CRI#y) can be simultaneously received by the terminal.
  • the terminal will select a pair from all beam pairs that can be simultaneously received by the terminal (that is, the 4 beam pairs in Table 2) according to the measurement results of the beam pair. In this case, it cannot be guaranteed that the transmit beams of multiple TRPs can be simultaneously received by the terminal.
  • the terminal normally receives the data carried by it, and for some of the beams that cannot be received at the same time, the terminal can choose to receive only the data carried by one of the beams according to certain rules, such as selecting the L1-RSRP value High.
  • the terminal will select again according to certain rules, for example, according to the measurement results (such as L1-RSRP) or the number of combinations that meet the simultaneous reception, select a pair of beams for reporting.
  • the terminal finally selects (CRI#2, CRI#4) for reporting.
  • TRP2 can know that its own CSI-RS resource indication is CRI#4 according to the resource configuration. Simultaneous transmission of TRP1 and TRP2 can now be achieved. However, if report2 selects (CRI#2, CRI#3) to report to TRP2, the CRI#1 and CRI#3 corresponding to TRP1 and TRP2 respectively may not be simultaneously received by the terminal at present.
  • Example 3 For the CSI-RS resource, resource grouping and reporting configuration method in Example 3, reference may be made to the description in Example 2 (Mode 1).
  • Example 3 the beam selection and reporting are performed in a complete pairing manner as the corresponding condition.
  • the terminal will select again according to certain rules, select two CRIs and report them, for example, select the one with the highest L1-RSRP.
  • Report#4 reported to TRP1 is initiated. Since Report#4 is reported as a basic beam, its beam selection is not restricted, while Report#5 initiated at time t5 needs to be selected according to the beam report content of Report#4. .
  • the CSI-RS resource, resource grouping, and report configuration method in this example 4 is as described in the example (mode 2) of method 200, and to avoid repetition, details are not repeated here.
  • Example 4 is mainly aimed at the case where the backhaul line between TRPs is not ideal.
  • beam reporting to two TRPs is usually adopted.
  • This example 4 can improve the probability that the beams reported to the two TRPs respectively satisfy the simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs under the non-ideal backhaul line.
  • the beam reporting to the basic TRP is the basic beam reporting
  • TRP1 is the basic TRP
  • the beam report reported to TRP1 is the basic beam report.
  • the CRI in the report content must always be received at the same time as the CRI in the basic beam report, that is, (CRI#1, CRI#3).
  • the terminal When there are multiple beam pairs that can be simultaneously received with the CRI in the basic beam report, the terminal will select again according to the measurement results, such as L1-RSRP, and select a pair for reporting, as shown in the second row in Table 4 shown.
  • Report#4 reported to TRP1 is initiated. Since Report#4 is reported as a basic beam, its beam selection is not restricted, while Report#5 initiated at time t5 needs to be selected according to the beam report content of Report#4. .
  • the CSI-RS resource, resource grouping, and reporting configuration method in this example 5 is as described in the example (mode 2) in method 200, and to avoid repetition, details are not described herein again.
  • Example 5 is for the case of non-ideal backhaul lines between TRPs.
  • beam reporting to two TRPs is usually adopted.
  • This example 5 can improve the probability that the beams reported to the two TRPs respectively satisfy the simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs under the non-ideal backhaul line.
  • TRP1 performs CSI reporting beam pair (CRI#1, CRI#3), and TRP1 can determine its own beam as CRI#1 according to resource grouping
  • the associated CSI report 2 must meet at least one of the following conditions:
  • the part associated with TRP1 in CSI report 2 is the same as that in CSI report 1, as shown in the third row in Table 5. Since the beam pair in CSI report 2 can be simultaneously received by the UE and includes CRI#1, the part of CSI report 2 associated with TRP2 can be transmitted simultaneously with the part of CSI report 1 associated with TRP1.
  • the part associated with TRP1 in CSI report 2 is different from that in CSI report 1.
  • the part associated with TRP2 in CSI report 2 and the part associated with TRP1 in CSI report 1 can be received at the same time, as shown in Table 5. row shown.
  • the terminal selects (CRI#2, CRI#4) from the two beam pairs that satisfy simultaneous reception for reporting. Since CRI#1 is not included in CSI report 2, in order to ensure simultaneous transmission, it is necessary to associate in CSI report 2.
  • the part to TRP2 and CRI#1 can be received simultaneously, and (CRI#1, CRI#4) can be simultaneously received by the terminal.
  • the probability that the beams respectively reported to multiple TRPs satisfy simultaneous reception is effectively improved, thereby enhancing the simultaneous transmission of multiple TRPs under non-ideal return lines ability.
  • FIG. 8 it is a schematic flowchart of a method 800 for reporting channel state information provided by an exemplary embodiment of the present application.
  • the method 800 can be applied to but not limited to a terminal, and can be specifically executed by hardware and/or software installed in the terminal .
  • the method 800 includes at least the following steps.
  • S810 select one or more target resources from each target resource group.
  • the reporting delay window can be opened when any CSI report is initiated.
  • the multiple CSI reports located within the same reporting delay window are the same, or, the CRI and/or SSB RI in the multiple CSI reports located within the same reporting delay window are the same.
  • the reporting delay window may be an absolute time window (eg, periodic/semi-persistent CSI reporting) or a relative time window (eg, aperiodic CSI reporting).
  • the reporting delay window may be determined by any one of the following (1)-(5).
  • the terminal negotiates with the network side device to determine.
  • the reporting delay window can be indicated by RRC, DCI, and MAC CE alone, or can be indicated simultaneously with the signaling that triggers reporting.
  • the reporting delay window is indicated by the DCI
  • the The reporting delay window is indicated by the CSI terminal request field in the DCI.
  • the time domain resource for periodic CSI reporting is an RRC configuration
  • the reporting delay window based on a periodic CSI report setting associated with two CSI reports and two periodic CSI report settings is an absolute window.
  • the length of the delay window of a periodic CSI report setting associated with two CSI reports is set to the time interval between two CSI reports, namely timeoffset, and the length of the delay window of two periodic CSI report settings is two CSI reports The time interval between settings.
  • S830 Determine the first channel state information CSI report according to each of the target resources.
  • the implementation process of determining the first CSI report according to each of the target resources described in S830 may at least include: : determine the first CSI report according to each of the target resources and the second CSI report; wherein, the determination process of the second CSI report may refer to the description of the first CSI report, and will not be repeated here.
  • the feedback time of the second CSI report is earlier than the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both within the reporting delay window.
  • CRI#1 and CRI#2 in the second CSI report can be received at the same time, then the CRI#x and CRI#y included in the first CSI report determined based on the target resource are the same as those in the second CSI report.
  • the combination of CRI#1 and CRI#2 can be received at least in part at the same time.
  • the semi-persistent CSI reporting is based on the periodic CSI reporting activated by the MAC CE, its time domain characteristics can still be known through coordination in advance, so its corresponding reporting delay window is an absolute window.
  • FIG. 9c it is a schematic diagram of a delay window of aperiodic CSI report setting associated with two CSI reports. Since the aperiodic CSI report is triggered by DCI, the network side device cannot fix the trigger time of the aperiodic CSI report. Therefore, the reporting delay window of the aperiodic CSI report is a relative window, and its starting point is the trigger time of the aperiodic CSI report.
  • the network configuration may be determined by the terminal capabilities. 9a and 9b, since all CSI-RSs have been received and measured before CSI reporting, the CSI reporting contents within the same delay window are the same in this case.
  • the network-side device is configured with 2 CSI-RS resources (ie, target resources), and the 2 CSI-RS resources are divided into two groups, and each group has one CSI-RS resource. Then, see Figure 9d:
  • Report#1 initiates, the terminal reports to TRP1 according to the measured result, and the CSI-RS resource indication in the CSI report content is (CRI#1, CRI#2).
  • the terminal receives CSI-RS#1.
  • Report#2 is initiated, and the terminal reports to TRP1 according to the measured result. Since there are only two CSI-RS resources, the CSI-RS resource indication in the CSI report content is still (CRI#1, CRI# 2).
  • both CSI reports exist in a reporting delay window and the feedback CRI is the same, in the current situation, because CSI-RS#1 is retransmitted, the remaining CSI such as CQI, RI, and PMI in the two CSI reports Report content may vary. Therefore, if there are multiple CSI reports based on the same CSI-RS resource at different times in the reporting delay window, it is only necessary to ensure that the CRI/SSBRI in the content of the CSI report is the same. The same CRI/SSBRI indicates that the beams selected for the two reports are the same. Since in the group-based beam report, the beam pair of each CSI report can be received by the UE at the same time, so TRP1 and TRP2 can be received according to the received beam. achieve simultaneous transmission.
  • beam selection and reporting are further performed based on the reporting delay window, thereby further enhancing the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs.
  • FIG. 10 it is a schematic flowchart of a method 1000 for reporting channel state information provided by an exemplary embodiment of the present application.
  • the method 1000 can be applied to but not limited to a terminal, and can be specifically executed by hardware and/or software installed in the terminal .
  • the method 1000 includes at least the following steps.
  • S1010 select one or more target resources from each target resource group.
  • S1020 Determine the first channel state information CSI report according to each of the target resources.
  • the feedback of the first CSI report includes: reporting, by the terminal, the time required to jointly process multiple CSI reports, And when the first CSI report is associated with other CSI reports, the first CSI report is processed according to the time required for joint processing of multiple CSI reports, and the other CSI reports are other than the first CSI report.
  • CSI report when the first CSI report is associated with other CSI reports, the first CSI report is processed according to the time required for joint processing of multiple CSI reports, and the other CSI reports are other than the first CSI report.
  • the first CSI report is fed back.
  • the aforementioned CSI processing time includes the CSI processing time in the case of no association with other CSI reports, and the other CSI reports are CSI reports other than the first CSI report.
  • the CSI processing time window is the calculation processing time required from the initiation of the CSI report to the reporting.
  • the start position of a CSI report processing window is the time when the CSI report is initiated, that is, time t1, and the end position is the time when the calculation of the last RS associated with it ends, that is, time t2.
  • ⁇ t represents the processing delay.
  • the starting position of the joint processing time window of the two CSI reports is the time when the first CSI report is initiated, that is, time t1
  • the end position is the time when the calculation of the last RS in all RSs associated with the two CSI reports ends, that is, t4 time.
  • the processing time required for different CSI reports is different.
  • the window length can be set to a fixed value slightly larger than the maximum window length obtained by statistics.
  • the processing window length of a CSI report can be Set to a fixed value slightly larger than t2-t1.
  • the CSI processing time window is opened.
  • the time interval between two CSI reports is less than the length of one CSI report processing window, that is, when there are two CSI reports in one CSI processing time window, as shown in Report#2 and Report#3 in Figure 11b.
  • the terminal will select only one CSI report to report according to certain rules, for example, according to the initiation time of the CSI report , select a CSI report with an early initiation time for reporting; or select a CSI report with a better measurement result for reporting according to the measurement situation of the CSI-RS resource or SS/PBCH block resource associated with the CSI report.
  • the time line of the CSI processing time window is defined as the joint processing of multiple CSI reports
  • the measurement and statistical results required for multiple CSI reports in the CSI processing window have been obtained, it is possible to allow multiple CSI reports to be processed in one The reporting is performed within the CSI processing time window, as shown in Figure 11c.
  • FIG. 12 it is a schematic flowchart of a method 1200 for reporting channel state information provided by an exemplary embodiment of the present application.
  • the method 1200 can be applied to, but not limited to, network-side equipment. Specifically, hardware and / or software execution.
  • the method 1200 includes at least the following steps.
  • S1210 Send resource indication information to the terminal, where the resource indication information is used to indicate multiple target resource groups to the terminal, so that the terminal reports a first CSI report based on the multiple target resource groups, and each target resource group is Corresponding to different target TRPs.
  • the target resource in the CSI report reported by the terminal to the target TRP corresponds to the CSI-RS resource of the target TRP, etc., thereby effectively enhancing the multi-TRP among multiple TRPs.
  • the simultaneous transmission capability of the /panel such as the simultaneous reception capability of the terminal, the simultaneous transmission capability of multiple TRPs, etc.
  • the target resources include channel state information-reference signal CSI-RS resources and/or SSB resources.
  • each target resource group includes a preset number of target resources, and the preset number is an upward rounding of N/M, or the preset number is N/M rounded down, N ⁇ M, where N is the total number of target resources configured by the network-side device, and M is the total number of target resource groups indicated by the resource indication information.
  • the resource indication information is transmitted through radio resource control RRC, medium access control control unit MAC CE or downlink control information DCI.
  • the method further includes: when there is a CSI report conflict in the reported multiple CSI reports, and the preconfigured CSI processing time is the time required for the terminal to process one CSI report,
  • the CSI reporting time interval is configured according to the CSI processing capability, wherein the CSI processing capability is reported by the terminal, and the CSI reporting time interval is not less than the time corresponding to the CSI processing capability.
  • the method further includes: when there is a CSI report conflict in the reported multiple CSI reports, and the preconfigured CSI processing time is the time required for the terminal to process the multiple CSI reports , calculate the target CSI processing time according to the time required by the terminal to process the last RS among all the RSs associated with the multiple CSI reports; and configure the CSI reporting time interval according to the target CSI processing time.
  • the execution subject may be a channel state information reporting device, or, in the channel state information reporting device, a method for performing a channel state information reporting method may be executed. control module.
  • the method for reporting channel state information performed by the device for reporting channel state information in the embodiment of the present application is used as an example to describe the device for reporting channel state information provided by the embodiment of the present application.
  • the apparatus 1300 includes: a selection module 1310, configured to select one or more targets from each target resource group The target resource group is determined according to the received resource indication information; the determining module 1320 is used for determining the first channel state information CSI report according to each of the target resources; the feedback module 1330 is used for feeding back the first channel state information CSI report.
  • a CSI report configured to select one or more targets from each target resource group The target resource group is determined according to the received resource indication information; the determining module 1320 is used for determining the first channel state information CSI report according to each of the target resources; the feedback module 1330 is used for feeding back the first channel state information CSI report.
  • a CSI report is used for feeding back the first channel state information CSI report.
  • each of the target resource groups corresponds to a different target sending and receiving point TRP.
  • the target resource group includes channel state information-reference signal CSI-RS resources and/or SSB resources
  • the CSI-RS resources include periodic CSI-RS and aperiodic CSI-RS resources , at least one of the semi-persistent CSI-RS resources.
  • the resource indication information is transmitted through radio resource control RRC, medium access control control unit MAC CE or downlink control information DCI.
  • each target resource group includes a preset number of target resources, and the preset number is an upward rounding of N/M, or the preset number is a direction of N/M. Round down, where N ⁇ M, N is the total number of target resources configured by the network side device, and M is the total number of the target resource groups.
  • the first CSI report when the first CSI report includes a target beam selected by the terminal and needs to be reported, the first CSI report satisfies at least one of the following conditions: Among the CRI combinations obtained by combining the CRIs in the first CSI report and the second CSI report, at least one CRI combination is simultaneously received by the terminal, the second CSI report is determined based on the target resource group, and the The feedback time of the second CSI report is earlier than the feedback time of the first CSI report; the first CSI report is a basic beam report; when the first CSI report is a non-basic beam report, the first CSI report is a non-basic beam report.
  • the CRI in a CSI report and the CRI in the predetermined basic beam report are simultaneously received by the terminal.
  • the target beam is determined according to at least one of the following: the beam in the second CSI report; the beam corresponding to the pre-configured uplink transmission or downlink transmission.
  • the selection module 1310 is configured to perform any one of the following under the condition that the predetermined mode is satisfied:
  • the second CSI report Based on the CRI in the second CSI report, select one or more target resources from each target resource group in a one-to-one pairing manner; based on the CRI in the second CSI report, select one or more target resources from each target resource group in a one-to-many pairing manner Selecting one or more target resources; based on the CRI in the second CSI report, selecting one or more target resources from each target resource group in a complete pairing manner; wherein, the second CSI report is based on the target resource group is determined, and the feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the predetermined mode includes a combination of the following manners: one or more CSI reporting configurations are configured; each of the CSI reporting configurations is configured with one or more uplink transmission resources; each of the CSI reporting configurations is configured with one or more uplink transmission resources; The configurations are all disabling group-based beam reporting; each of the CSI reporting configurations is associated with one of the target resource groups.
  • the feedback module is configured to report the first layer 1-reference signal in the case of beam pairing according to the one-to-one pairing manner, the one-to-many pairing manner, or the complete pairing manner receiving power L1-RSRP, and reporting the second L1-RSRP in a differential manner; wherein, the first L1-RSRP is the maximum value among multiple L1-RSRPs corresponding to the successfully paired CRIs, and the second L1-RSRP are other LI-RSRPs except the first LI-RSRP among the plurality of LI-RSRPs.
  • the one-to-one pairing manner includes corresponding position pairing and cross-position pairing.
  • the first CSI associated with the second CSI report satisfies at least one of the following conditions: the CRI included in the first CSI report is at least partially the same as the CRI included in the second CSI report; in the first CSI report and the second CSI report In the case where the same CRI does not exist in the first CSI report, the designated CRI in the first CSI report and the designated CRI in the second CSI report are simultaneously received by the terminal; the multiple CRIs included in the first CSI report received by the terminal at the same time.
  • the determining module 1320 is further configured to, when multiple CRIs included in the first CSI report are received at the same time, or when comparing the CRIs in the first CSI report with the CRIs in the first CSI report.
  • the CRIs in the second CSI report are combined, if there is a combination of CRIs that are simultaneously received, the specified content included in the first CSI report is determined according to a predetermined transmission scheme assumption, and the specified content is the first CSI report.
  • One or more of CRI, PMI, RI, and CQI in the CSI report wherein, the feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the determining module 1320 is specifically configured to determine the target content according to the first specified content in the first CSI report and/or the first specified content in the second CSI report, Wherein, the first specified content is one or more of CRI, PMI, RI, and CQI; and the first specified content in the first CSI report is replaced with the target content.
  • the predetermined transmission scheme is assumed to include non-coherent joint transmission NCJT or dynamic transmission point selection DPS.
  • the predetermined transmission scheme assumption may be indicated by any one of the following manners: the first CSI report; protocol agreement; high-level configuration.
  • the apparatus 1300 further includes: an enabling module 1340 for enabling a preconfigured reporting delay window; the determining module 1320 is further configured to CSI report, determining the first CSI report; wherein, the feedback time of the second CSI report is earlier than the first CSI report, and the feedback time of the second CSI report and the feedback of the first CSI report The times are all within the reporting delay window.
  • the report delay window is determined by any one of the following methods: the terminal and the network side device are negotiated and determined; implicit acquisition; RRC indication; MAC CE indication; DCI indication.
  • the reporting delay window is indicated by the DCI
  • the reporting delay window is indicated by a CSI terminal request field in the DCI.
  • the reporting delay window is an absolute time window or a relative time window.
  • the multiple CSI reports located within the same reporting delay window are the same, or the CRI and/or SSB RI of the multiple CSI reports located within the same reporting delay window are the same.
  • the apparatus 1300 further includes: a receiving module 1350, configured to receive data carried by a predetermined beam when the target beam included in the first CSI report does not meet the requirement to be simultaneously received.
  • the feedback module 1330 is further configured to process the first CSI report according to the predefined CSI processing time and only one first CSI report exists in the predefined CSI processing window. The first CSI report or the content of the CSI report is not updated.
  • the CSI processing time includes a CSI processing time in a case that is not associated with other CSI reports, and the other CSI reports are CSI reports other than the first CSI report.
  • the feedback module 1330 is configured to, when the terminal reports the time required for joint processing of multiple CSI reports, and the first CSI report is associated with other CSI reports, jointly according to the multiple CSI reports
  • the processing time required to process the first CSI report, and the other CSI reports are CSI reports other than the first CSI report.
  • the device 1300 for reporting channel state information provided by the embodiments of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 10 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • the device 1300 for reporting channel state information in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus 1300 may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the device 1300 for reporting channel state information in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus 1400 includes: a sending module 1410, configured to send resource indication information to a terminal, the resource indication information is used for Indicating multiple target resource groups to the terminal, so that the terminal reports the first CSI report based on the multiple target resource groups, each of the target resource groups corresponding to different target TRPs; transceiver 1420 .
  • the target resources include channel state information-reference signal CSI-RS resources and/or SSB resources.
  • each of the target resource groups includes a preset number of target resources, and the preset number is N/M rounded up, or the preset number is N/M. Rounded down, N ⁇ M, where N is the total number of target resources configured by the network-side device, and M is the total number of target resource groups indicated by the resource indication information.
  • the resource indication information is transmitted through radio resource control RRC, medium access control control unit MAC CE or downlink control information DCI.
  • the apparatus 1400 further includes: a first configuration module 1430, configured to have a CSI report conflict in the reported multiple CSI reports, and the preconfigured CSI processing time is the In the case of the time required for the terminal to process one CSI report, the CSI reporting time interval is configured according to the CSI processing capability, where the CSI processing capability is reported by the terminal, and the CSI reporting time interval is not less than the CSI reporting time interval The time corresponding to the processing power.
  • the apparatus 1400 further includes: a second configuration module 1440, configured to have a CSI report conflict in the reported multiple CSI reports, and the preconfigured CSI processing time is all
  • the target CSI processing time is calculated according to the time required by the terminal to process the last RS in all RSs associated with the multiple CSI reports; according to the target CSI processing time Configure the CSI reporting interval.
  • the device 1400 for reporting channel state information provided in this embodiment of the present application can implement each process implemented in the method embodiment of FIG. 12 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • an embodiment of the present application further provides a communication device 1500, including a processor 1501, a memory 1502, a program or an instruction stored in the memory 1502 and executable on the processor 1501, for example, the communication
  • the device 1500 is a terminal
  • the program or instruction is executed by the processor 1501
  • each process of the above-mentioned channel state information reporting method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 1500 is a network-side device, when the program or instruction is executed by the processor 1501, each process of the above-mentioned channel state information reporting method embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. .
  • the communication device 1500 may be a terminal
  • FIG. 16 is a schematic diagram of a hardware structure of a terminal 1600 implementing an embodiment of the present application.
  • the terminal 1600 includes but is not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, a processor 1610 and other components .
  • the terminal 1600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 16 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1604 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 16042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1607 includes a touch panel 16071 and other input devices 16072 . Touch panel 16071, also called touch screen.
  • the touch panel 16071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 16072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1601 receives the downlink data from the network side device, and then processes it to the processor 1610; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1609 may be used to store software programs or instructions as well as various data.
  • the memory 1609 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1610 may include one or more processing units; optionally, the processor 1610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1610.
  • the processor 1610 is configured to select one or more target resources from each target resource group; wherein, the target resource group is determined according to the received resource indication information; and the first channel state is determined according to each of the target resources Information CSI report; feedback the first CSI report.
  • the terminal determines the target resource group according to the resource indication information, and then selects one or more target resources from each target resource group to realize the feedback of the CSI report.
  • the target resource in the CSI report reported by the terminal to the target TRP corresponds to the CSI-RS resource of the target TRP, etc., thereby effectively enhancing the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs, such as the simultaneous reception capability of the terminal, Simultaneous sending capability, etc.
  • each of the target resource groups corresponds to a different target sending and receiving point TRP.
  • the target resource group includes channel state information-reference signal CSI-RS resources and/or SSB resources
  • the CSI-RS resources include periodic CSI-RS and aperiodic CSI-RS resources , at least one of the semi-persistent CSI-RS resources.
  • the resource indication information is transmitted through radio resource control RRC, medium access control control unit MAC CE or downlink control information DCI.
  • each target resource group includes a preset number of target resources, and the preset number is an upward rounding of N/M, or the preset number is a direction of N/M. Round down, where N ⁇ M, N is the total number of target resources configured by the network side device, and M is the total number of the target resource groups.
  • the first CSI report when the first CSI report includes a target beam selected by the terminal and needs to be reported, the first CSI report satisfies at least one of the following conditions: Among the CRI combinations obtained by combining the CRIs in the first CSI report and the second CSI report, at least one CRI combination is simultaneously received by the terminal, and the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than the feedback time of the first CSI report; the first CSI report is a basic beam report; when the first CSI report is a non-basic beam report, the The CRI in the first CSI report and the CRI in the predetermined basic beam report are simultaneously received by the terminal.
  • the target beam is determined according to at least one of the following: the beam in the second CSI report; the beam corresponding to the pre-configured uplink transmission or downlink transmission.
  • the processor performing the selecting one or more target resources from each target resource group includes: in the case of satisfying a predetermined pattern, performing any one of the following: based on the second CSI report In the CRI, one or more target resources are selected from each target resource group in a one-to-one pairing manner; based on the CRI in the second CSI report, one or more target resources are selected from each target resource group in a one-to-many pairing manner target resources; based on the CRI in the second CSI report, select one or more target resources from each target resource group in a complete pairing manner; wherein, the second CSI report is determined based on the target resource group, and all The feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the predetermined mode includes a combination of the following manners: one or more CSI reporting configurations are configured; each of the CSI reporting configurations is configured with one or more uplink transmission resources; each of the CSI reporting configurations is configured with one or more uplink transmission resources; The configurations are all disabling group-based beam reporting; each of the CSI reporting configurations is associated with one of the target resource groups.
  • performing the feedback of the first CSI report by the processor includes: performing beam pairing according to the one-to-one pairing manner, the one-to-many pairing manner, or the complete pairing manner.
  • the first layer 1-reference signal received power L1-RSRP is reported, and the second L1-RSRP is reported in a differential manner; wherein, the first L1-RSRP is one of the multiple L1-RSRPs corresponding to the successfully paired CRIs.
  • the maximum value of , the second L1-RSRP is other LI-RSRPs except the first LI-RSRP among the multiple LI-RSRPs.
  • the one-to-one pairing manner includes corresponding position pairing and cross-position pairing.
  • the first CSI report associated with the second CSI report is received.
  • a CSI report satisfies at least one of the following conditions: the CRI included in the first CSI report is at least partially the same as the CRI included in the second CSI report; If the same CRI does not exist in the CSI report, the designated CRI in the first CSI report and the designated CRI in the second CSI report are simultaneously received by the terminal; CRIs are simultaneously received by the terminal.
  • the method further includes: in the case where multiple CRIs included in the first CSI report are received simultaneously, or, comparing the CRIs in the first CSI report with the second When the CRIs in the CSI report are combined, if there is a combination of CRIs that are simultaneously received, the specified content included in the first CSI report is determined according to a predetermined transmission scheme assumption, and the specified content is the first CSI report One or more of CRI, PMI, RI, and CQI in the above; wherein, the feedback time of the second CSI report is earlier than the feedback time of the first CSI report.
  • the determination process of determining the specified content included in the first CSI report according to a predetermined transmission scheme assumption includes: according to the first specified content in the first CSI report, and/or The first specified content in the second CSI report is determined, and the target content is determined, wherein the first specified content is one or more of CRI, PMI, RI, and CQI; the first specified content in the first CSI report is The specified content is replaced with the target content.
  • the predetermined transmission scheme is assumed to include non-coherent joint transmission NCJT or dynamic transmission point selection DPS.
  • the predetermined transmission scheme assumption may be indicated by any one of the following manners: the first CSI report; protocol agreement; high-level configuration.
  • the processor before feeding back the first CSI report, is further configured to enable a preconfigured reporting delay window; the processor executes the determining of the first CSI report according to each of the target resources, Including: determining the first CSI report according to each of the target resources and the second CSI report; wherein, the feedback time of the second CSI report is earlier than the first CSI report, and the second CSI report is The feedback time and the feedback time of the first CSI report are both within the reporting delay window.
  • the reporting delay window is determined by any one of the following methods: the terminal and the network side device are negotiated and determined; implicit acquisition; RRC indication; MAC CE indication; DCI indication.
  • the reporting delay window is indicated by the DCI
  • the reporting delay window is indicated by a CSI terminal request field in the DCI.
  • the reporting delay window is an absolute time window or a relative time window.
  • the multiple CSI reports located within the same reporting delay window are the same, or the CRI and/or SSB RI of the multiple CSI reports located within the same reporting delay window are the same.
  • the processor before feeding back the first CSI report, is further configured to process the first CSI report according to a predefined CSI processing time, and there is only one first CSI in the predefined CSI processing window In the case of reporting, the first CSI report is fed back, or the content of the CSI report is not updated.
  • the CSI processing time includes a CSI processing time in a case that is not associated with other CSI reports, and the other CSI reports are CSI reports other than the first CSI report.
  • the processor performing feedback of the first CSI report includes: reporting, at the terminal, the time required for joint processing of multiple CSI reports, and the situation that the first CSI report is associated with other CSI reports Next, the first CSI report is processed according to the time required for joint processing of multiple CSI reports, and the other CSI reports are CSI reports other than the first CSI report.
  • the processor is further configured to receive data carried by a predetermined beam in the case that the target beam included in the first CSI report does not meet the requirement to be simultaneously received .
  • the network-side device 1700 includes: an antenna 1701 , a radio frequency device 1702 , and a baseband device 1703 .
  • the antenna 1701 is connected to the radio frequency device 1702 .
  • the radio frequency device 1702 receives information through the antenna 1701, and sends the received information to the baseband device 1703 for processing.
  • the baseband device 1703 processes the information to be sent and sends it to the radio frequency device 1702
  • the radio frequency device 1702 processes the received information and sends it out through the antenna 1701 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1703 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1703 .
  • the baseband apparatus 1703 includes a processor 174 and a memory 1705 .
  • the baseband device 1703 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 17 , one of the chips is, for example, the processor 1704, which is connected to the memory 1705 to call a program in the memory 1705 to execute
  • the network-side device shown in the above method embodiments operates.
  • the baseband device 1703 may further include a network interface 1706 for exchanging information with the radio frequency device 1702, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present invention further includes: instructions or programs that are stored in the memory 1705 and run on the processor 1704, and the processor 1704 invokes the instructions or programs in the memory 1705 to execute each module shown in FIG. 12 .
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above-mentioned channel state information reporting method embodiment is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running network-side device programs or instructions to implement the above channel state information
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running network-side device programs or instructions to implement the above channel state information
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When the processor is executed, each process of the above-mentioned channel state information reporting method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de rapport d'informations d'état de canal, ainsi qu'un terminal, se rapportant au domaine technique des communications sans fil. Le procédé consiste : à sélectionner une ou plusieurs ressources cibles parmi chaque groupe de ressources cibles, le groupe de ressources cibles étant déterminé en fonction d'informations d'indication de ressources reçues ; en fonction de chaque ressource cible, à déterminer un premier rapport d'informations d'état de canal (CSI) ; et à renvoyer le premier rapport d'informations CSI.
PCT/CN2021/124019 2020-10-20 2021-10-15 Procédé et appareil de rapport d'informations d'état de canal, et terminal WO2022083508A1 (fr)

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