WO2022083532A1 - Csi computation method, user terminal and computer-readable storage medium - Google Patents
Csi computation method, user terminal and computer-readable storage medium Download PDFInfo
- Publication number
- WO2022083532A1 WO2022083532A1 PCT/CN2021/124347 CN2021124347W WO2022083532A1 WO 2022083532 A1 WO2022083532 A1 WO 2022083532A1 CN 2021124347 W CN2021124347 W CN 2021124347W WO 2022083532 A1 WO2022083532 A1 WO 2022083532A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- csi
- trp
- information
- trps
- configuration information
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 72
- 230000001427 coherent effect Effects 0.000 claims abstract description 43
- 238000004364 calculation method Methods 0.000 claims description 254
- 238000005259 measurement Methods 0.000 claims description 135
- 230000006399 behavior Effects 0.000 claims description 103
- 238000004590 computer program Methods 0.000 claims 4
- LKKMLIBUAXYLOY-UHFFFAOYSA-N 3-Amino-1-methyl-5H-pyrido[4,3-b]indole Chemical compound N1C2=CC=CC=C2C2=C1C=C(N)N=C2C LKKMLIBUAXYLOY-UHFFFAOYSA-N 0.000 description 13
- 102100031413 L-dopachrome tautomerase Human genes 0.000 description 13
- 101710093778 L-dopachrome tautomerase Proteins 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Definitions
- the present application relates to the field of wireless communication, and in particular, to a CSI calculation method, a user terminal, and a computer-readable storage medium.
- the Channel State Information (CSI) protocol framework has been clarified in New Radio (NR) R15, that is, the user terminal learns the report content to be measured based on the CSI-ReportConfig (CSI-ReportConfig) information configured on the network side.
- CSI-ReportConfig CSI-ReportConfig
- CSI-ResourceConfig CSI resource configuration
- the NR protocol In the current NR CSI protocol framework, the NR protocol only supports closed-loop transmission schemes and open-loop/semi-open-loop transmission schemes. For the non-coherent joint transmission scheme, the existing NR protocol is not involved.
- the embodiments of the present application solve how to perform CSI calculation for the non-coherent joint transmission scheme.
- a first aspect of the embodiments of the present application provides a CSI calculation method, the method comprising:
- the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission
- the CSI corresponding to each TRP in the multiple transmission and reception point TRPs is calculated, and the multiple TRPs correspond to one codeword.
- the determining the CSI calculation behavior according to the network configuration information includes:
- the network configuration information obtain CSI report configuration information; According to the CSI report configuration information, determine the CSI calculation behavior;
- the network configuration information obtain indication information for indicating the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information for indicating the CSI calculation behavior.
- the acquiring CSI report configuration information according to the network configuration information includes any of the following:
- the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; Report configuration information, and determine to report configuration information for the CSI.
- the determining the CSI calculation behavior according to the CSI reporting configuration information includes:
- the rank information is used to indicate the number of ranks included in the CSI report, or the rank information is used to indicate the maximum number of ranks included in the CSI report;
- the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the multiple NZP CSI-RS resources correspond to the multiple TRPs
- the resource set includes one NZP CSI-RS resource
- the NZP CSI-RS resource includes port groups with different QCL information
- the measurement and calculation results of the port groups corresponding to other TRPs are used as the interference corresponding to the first TRP information, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated;
- the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- the obtaining CSI resource configuration information for channel measurement according to the network configuration information includes:
- the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; associate the selected CSI aperiodic trigger state with The CSI resource configuration information used for channel measurement is determined as the CSI resource configuration information used for channel measurement.
- determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement includes:
- a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated The CSI corresponding to each TRP, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement includes:
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the obtaining, according to the network configuration information, the indication information for indicating the CSI calculation behavior includes:
- the indication information included in the CSI aperiodic trigger state and used to indicate the CSI calculation behavior is acquired.
- the indication information for indicating the CSI calculation behavior is rank joint information
- the rank joint information is that the reported different values satisfy candidate RI pairs.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the measurement calculation result corresponding to the other TRP is: in the configuration information related to the other TRP, the measurement calculation result of the NZP CSI-RS resource in the resource set used for channel measurement.
- the values corresponding to the CSI requests in each downlink control information are equal.
- the method further includes:
- the CSI corresponding to each TRP is reported to the network side.
- the reporting of the CSI corresponding to each TRP to the network side includes:
- the CSI corresponding to each TRP and the validity indication information corresponding to each CSI are reported to the network side.
- the length of the validity indication information is 1 bit or 2 bits.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the interference information includes: measurement results corresponding to TRPs other than the second TRP among the multiple TRPs, wherein the first TRP is any one of the multiple TRPs.
- the CSI corresponding to each TRP is reported to the network side in any of the following manners:
- each CSI report carries CSI corresponding to one TRP.
- each CSI report when each CSI report carries CSI corresponding to one TRP, the priority of the CSI report corresponding to each TRP is the same, and any one of the CSI reports corresponding to each TRP has the same priority.
- the priority of the even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the CSI corresponding to the first TRP is the same as the CSI corresponding to the second TRP among the multiple TRPs, and the CSI corresponding to the first TRP includes at least one of CRI, RI, PMI, and CQI, obtain the first TRP
- the interference information corresponding to the TRP, the CSI corresponding to the first TRP is calculated according to the interference information until the CSI corresponding to each TRP is calculated, and the interference information includes dividing the second TRP among the multiple TRPs A measurement and calculation result of a TRP other than , wherein the first TRP is any one of the multiple TRPs.
- the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
- the interference information corresponding to the first TRP is obtained, and the CSI corresponding to the first TRP is calculated according to the interference information, until the calculated
- the CSI corresponding to each TRP, and the interference information includes measurement and calculation results of TRPs in the multiple TRPs except the second TRP, where the first TRP is any one of the multiple TRPs. one.
- a second aspect of the embodiments of the present application provides a user terminal, including:
- a receiving unit configured to receive the network configuration information delivered by the network side
- a determining unit configured to determine the CSI calculation behavior according to the network configuration information
- a calculation unit configured to calculate CSI corresponding to each TRP in the multiple transmission and reception point TRPs when the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, and the multiple TRPs correspond to one codeword.
- the determining unit is configured to determine the CSI calculation behavior according to the network configuration information in any of the following manners: obtain CSI report configuration information according to the network configuration information ; According to the CSI report configuration information, determine the CSI calculation behavior; Or, according to the network configuration information, obtain the CSI resource configuration information for channel measurement; According to the CSI resource configuration information for channel measurement, determine the CSI calculation or, according to the network configuration information, obtain indication information used to indicate the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information used to indicate the CSI calculation behavior.
- the determining unit is configured to obtain the CSI report configuration information according to the network configuration information in any of the following manners: from the network configuration information, obtain the CSI report configuration information; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger;
- the CSI report configuration information associated with the state is determined to be the CSI report configuration information.
- the determining unit is configured to obtain rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the The rank information is used to indicate the maximum number of ranks included in the CSI report; when the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is based on non-coherent joint The transmission performs CSI calculations.
- the computing unit is configured to, when the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs; Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated Describe the CSI corresponding to each TRP; when the resource set includes an NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement and calculation results of the port groups corresponding to other TRPs are used as interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated; wherein, the first TRP is any one of the multiple TRPs, and the other TRPs
- the determining unit is configured to acquire, according to the network configuration information, the CSI resource configuration information used for channel measurement in any of the following manners: from the network configuration information , obtain the CSI resource configuration information used for channel measurement; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI non-signal selected by the CSI request trigger Periodic trigger state; determine the CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state as the CSI resource configuration information for channel measurement.
- the determining unit is configured to determine the CSI when a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources
- the calculation behavior is based on non-coherent joint transmission for CSI calculation.
- the calculation unit is configured to use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and use the calculation results according to the first TRP.
- the interference information corresponding to a TRP calculates the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs is a TRP other than the first TRP among the plurality of TRPs.
- the determining unit is configured to, when there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and different ports When the QCL information corresponding to the groups is different, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the calculation unit is used to use the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and according to the corresponding interference information of the first TRP Calculate the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are the TRPs other than the first TRP among the plurality of TRPs.
- the determining unit is configured to acquire the information indicated by the downlink control information from the network configuration information; acquire the CSI according to the information indicated by the downlink control information
- the indication information for indicating the CSI calculation behavior is rank joint information
- the rank joint information is that the reported different values satisfy candidate RI pairs.
- the calculation unit is configured to use the measurement calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and Calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs,
- the other TRPs are TRPs other than the first TRP among the multiple TRPs, and the measurement calculation results corresponding to the other TRPs are: in the configuration information related to the other TRPs, the NZP in the resource set used for channel measurement Measurement and calculation results of CSI-RS resources.
- the values corresponding to the CSI requests in each downlink control information are equal.
- the method further includes: a reporting unit, configured to report the CSI corresponding to each TRP to the network side.
- the reporting unit is configured to report the CSI corresponding to each TRP and the validity indication information corresponding to each CSI to the network side.
- the length of the validity indication information is 1 bit or 2 bits.
- the reporting unit is configured to report the CSI corresponding to each TRP to the network side in any of the following manners:
- each CSI report carries CSI corresponding to one TRP.
- each CSI report when each CSI report carries CSI corresponding to one TRP, the CSI reports corresponding to each TRP have the same priority, and any one of the CSI reports corresponding to each TRP has the same priority.
- the priority of the even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
- Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are run, the steps of any of the foregoing CSI calculation methods are executed.
- An embodiment of the present application further provides another user terminal, including a memory and a processor, where the memory stores computer instructions that can be run on the processor, and the processor executes any of the above when running the computer instructions.
- a kind of steps of the CSI calculation method is also provided.
- the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation
- the CSI corresponding to multiple TRPs can be calculated, so that incoherent joint transmission can be realized
- FIG. 1 is a flowchart of a CSI calculation method in an embodiment of the present application
- FIG. 2 is a schematic structural diagram of a user terminal in an embodiment of the present application.
- the NR protocol In the current NR CSI protocol framework, the NR protocol only supports closed-loop transmission schemes and open-loop/semi-open-loop transmission schemes. Corresponding to the non-coherent joint transmission scheme, the existing NR protocol is not involved.
- An embodiment of the present application provides a CSI calculation method. Referring to FIG. 1 , the following describes in detail through specific steps.
- Step S101 receiving the network configuration information delivered by the network side.
- the network side when the network side needs to acquire the CSI, the network side can deliver network configuration information to the user terminal.
- the network configuration information delivered by the network side to the user terminal may be used to instruct the user terminal to report CSI.
- the network configuration information delivered by the network side to the user terminal may include CSI report configuration information, may also include CSI resource configuration information used for channel measurement, and may also include information indicated by downlink control information.
- the network configuration information delivered by the network side may also be other types of information, as long as the user terminal can be instructed to report the CSI, and is not limited to the above-mentioned types of information.
- Step S102 Determine the CSI calculation behavior according to the network configuration information.
- the network side may set calculation behavior indication information for indicating the CSI calculation behavior in the CSI report configuration information.
- the calculation behavior indication information set by the network side may be used to indicate whether the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, or based on closed-loop transmission for CSI calculation, or based on open-loop/half-open-loop transmission for CSI calculation, or based on single TRP. transmission.
- the non-coherent joint transmission may be transmitted through more than one TRP, or may also be transmitted through more than one TRP and not a single frequency network (SFN).
- SFN single frequency network
- the user terminal After receiving the network configuration information configured on the network side, the user terminal can learn the calculation behavior indication information configured on the network side, and then can determine the CSI calculation behavior.
- the network side adds 1-bit information to the CSI report configuration information, and the added 1-bit information is used to represent the calculation behavior indication information.
- the CSI calculation behavior performed by the user terminal is instructed to perform CSI calculation based on non-coherent joint transmission; when the value corresponding to the calculation behavior indication information is 0, the CSI calculation behavior performed by the user terminal is instructed CSI calculation is performed based on other transmission schemes.
- the network side may also indicate the CSI calculation behavior to the user terminal in the network configuration information.
- the CSI calculation behavior may be based on single TRP transmission, or may be CSI calculation based on non-coherent joint transmission.
- the user terminal After receiving the network configuration information delivered by the network side, the user terminal can determine the CSI calculation behavior.
- the user terminal may obtain the CSI report configuration information according to the network configuration information; and determine the CSI calculation behavior according to the obtained CSI report configuration information.
- the CSI report configuration information may be obtained directly from the network configuration information, or may be obtained indirectly from the network configuration information.
- the network configuration information delivered by the network side may include CSI report configuration information. Therefore, the CSI report configuration information may be directly obtained from the network configuration information delivered by the network side.
- the network configuration information delivered by the network side may further include information indicated by the downlink control information, and the information indicated by the downlink control information includes a CSI aperiodic trigger state (CSI request) triggering selection -AperiodicTriggerState), therefore, the CSI report configuration information associated with the selected CSI aperiodic trigger state can be acquired.
- CSI request CSI aperiodic trigger state
- CSITriggerState CSI report configuration information associated with the selected CSI aperiodic trigger state
- the CSI report configuration information may carry rank (RI) information, and the rank information may be used to represent the number of RIs included in the CSI report, or the maximum number of RIs included in the CSI report. generated from the configuration information.
- RI rank
- the user terminal can determine that the CSI calculation behavior is based on non-coherent joint transmission for CSI calculate.
- the CSI reporting configuration information includes rank information.
- the rank information is nrofRIsPerReport, which is used to indicate the number of RIs included in the CSI report.
- the rank information is maxNrofRIsPerReport, which is used to indicate the maximum RI data included in the CSI report.
- the user terminal may obtain the CSI resource configuration information for channel measurement according to the network configuration information; and determine the CSI calculation behavior according to the CSI resource configuration information for channel measurement.
- the CSI resource configuration information used for channel measurement may be obtained directly from the network configuration information, or may be obtained indirectly according to the network configuration information.
- the network configuration information delivered by the network side may include CSI resource configuration information used for channel measurement. Therefore, the CSI resource configuration information for channel measurement can be directly obtained from the network configuration information delivered by the network side.
- the network configuration information delivered by the network side may also include information indicated by the downlink control information, and the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger.
- CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state may also include information indicated by the downlink control information, and the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger.
- the network side may indicate that a resource set includes at least two NZP CSI-RS resources in the CSI resource configuration information used for channel measurement.
- the user terminal can learn that the CSI resource configuration information used for channel measurement indicates that a resource set includes at least two NZP CSI-RS resources.
- the user terminal can learn that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the network side may also indicate that one NZP CSI-RS resource includes multiple port groups in the CSI resource configuration information used for channel measurement, and the QCL (Quasi co-location) information of different port groups is different.
- the user terminal can learn that the CSI resource configuration information used for channel measurement indicates that one NZP CSI-RS resource includes at least two port groups, and the QCL information of different port groups is different.
- the user terminal can learn that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the network configuration information delivered by the network side may be based on the information indicated by the downlink control information, and the information indicated by the downlink control information may indicate that the CSI calculation behavior of the user terminal is to perform CSI calculation based on non-coherent joint transmission.
- the information indicated by the downlink control information is specifically a CSI aperiodic trigger state (CSI-AperiodicTriggerState) selected by a CSI request (CSI request).
- CSI-AperiodicTriggerState CSI aperiodic trigger state selected by a CSI request (CSI request).
- the CSI aperiodic trigger status may include 1-bit information, which is used to indicate whether the user terminal CSI calculation behavior is based on non-coherent joint transmission or other transmission schemes.
- the CSI aperiodic trigger state may include rank joint information, and the rank joint information indicates whether the CSI calculation behavior of the user terminal is based on non-coherent joint transmission or other transmission schemes.
- the rank joint information may mean that the two sets of RI values reported by the user terminal must satisfy the candidate RI pair.
- Step S103 when the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission, calculate the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs, and the multiple TRPs correspond to one codeword.
- a codeword is an independent transmission that is sent over a transmission time interval (Transmission Time Interval, TTI) and includes CRC bits and undergoes encoding (Encoding) and rate matching (Ratematching). yuan. It is stipulated in LTE that for each user terminal, one TTI can transmit at most two codewords.
- a codeword can correspond to two TRPs, or can correspond to one TRP.
- the CSI can be determined by the following methods:
- the interference information may be measurement and calculation results corresponding to TRPs other than the first TRP among the multiple TRPs, measurement and calculation results of a port group, and the like.
- a possible method for calculating the CSI corresponding to the first TRP according to the interference information includes:
- the CSI corresponding to the first TRP is acquired based on the channel measurement result and the interference information of the first TRP.
- the signal-to-noise ratio is HHH/(I+N), where N is the noise power.
- the CQI corresponding to the signal-to-interference ratio.
- the CQI is the CSI.
- the user terminal may determine, based on the CSI report configuration information configured on the network side, that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the resource set for channel measurement may include multiple NZP CSI-RS resources for channel measurement, or may include only one NZP CSI-RS resource for channel measurement.
- different TRPs can correspond to different NZP CSI-RS resources; when the resource set includes only one NZP CSI-RS resource for channel measurement, one
- the NZP CSI-RS resource can include multiple port groups, and different TRPs can correspond to different port groups.
- TRPs may be understood as TRPs other than the first TRP among the multiple TRPs, and the first TRP is any one of the multiple TRPs.
- the user terminal when calculating the CSI corresponding to the first TRP, can use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information between TRPs, or use the NZP CSI-RS resources corresponding to other TRPs in the same NZP CSI-RS resource.
- the measurement and calculation result of the port group is used as the interference information between TRPs.
- the resources used for channel measurement corresponding to TRP1 and the resources used for channel measurement corresponding to TRP2 belong to the same resource set.
- the measurement and calculation result of the resource corresponding to the TRP2 may be used as the interference information between the TRPs corresponding to the TRP1.
- the user terminal may determine, based on the CSI resource configuration information configured by the network side for channel measurement, that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the user terminal when calculating the CSI corresponding to the first TRP, can use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the TRP If the CSI resource configuration information indicates that one NZP CSI-RS resource includes multiple port groups, and the QCL information of different port groups is different, then the user terminal can calculate the CSI corresponding to the first TRP, other TRP The measurement and calculation result of the port group of the corresponding NZP CSI-RS resource is used as the interference information between TRPs corresponding to the first TRP.
- the user terminal may determine that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission based on the information indicated by the downlink control information configured on the network side.
- the user terminal uses the measurement and calculation results of other TRPs in the aperiodic trigger state of the same CSI as the interference information between the TRPs corresponding to the first TRP.
- the measurement calculation results corresponding to the other TRPs include: in the configuration information of the other TRPs, the measurement calculation results are calculated according to the NZP CSI-RS resources in the resource set used for channel measurement.
- the measurement and calculation results of the resources corresponding to other TRPs when used as the interference information between the TRPs corresponding to the first TRP, the measurement and calculation results of the resources corresponding to the other TRPs may be used as the interference between the TRPs corresponding to the first TRP. information.
- the user terminal may also report the calculated CSI corresponding to each TRP to the network side.
- the user terminal when reporting the CSI corresponding to each TRP to the network side, may report a CSI report to the network side.
- the CSI corresponding to all TRPs can be carried.
- the user terminal After calculating the CSI corresponding to TRP1 and the CSI corresponding to TRP2, the user terminal carries the CSI corresponding to TRP1 and the CSI corresponding to TRP2 in one CSI report, and sends the CSI report to the network side.
- the user terminal may also report multiple CSI reports to the network side, and each CSI report may carry CSI corresponding to one TRP.
- the user terminal may report two CSI reports to the network side, wherein one CSI report carries the CSI corresponding to TRP1, and the other CSI report carries the CSI corresponding to TRP2.
- the priorities corresponding to different CSI reports may be equal.
- the priority of any even subband CSI is higher than the priority of any odd subband CSI in the CSI report corresponding to any TRP.
- the user terminal sends the CSI corresponding to the two TRPs to the network side.
- the priority of any even subband CSI in the CSI report corresponding to TRP1 is higher than the priority of any odd subband CSI in TRP1 and TRP2.
- a scenario where the CSI corresponding to two TRPs is the same may occur. If the CSI report corresponding to the first TRP is the same as the CSI report corresponding to the second TRP, and any CSI report includes any one of CRI, RI, PMI, and CQI, it means that the CSI calculation of the first TRP is being performed. , the measurement calculation result corresponding to the second TRP is not used as the interference information between the TRPs of the first TRP. That is, the interference information includes measurement and calculation results of TRPs other than the second TRP among the multiple TRPs.
- the user terminal reports CSI reports corresponding to two TRPs, one of which includes CRI, RI, and CQI, and the CSI reports corresponding to the two TRPs are the same.
- the measurement calculation result corresponding to TRP2 is not regarded as the inter-TRP interference of TRP1.
- the user terminal when reporting the CSI report to the network side, may also add information for indicating the validity of the CSI to the CSI report.
- the user terminal may add 1 bit or 2 bits to the CSI report to indicate the validity of the CSI.
- the number of bits added in the CSI report may be equal to the number of TRPs used.
- the user terminal may add 1-bit validity information to the CSI report to indicate the validity of the CSI corresponding to the current TRP.
- the value of the newly added 1 bit in the CSI report is 1, it indicates that the CSI corresponding to the TRP is valid; on the contrary, when the value of the newly added 1 bit in the CSI report is 0, it indicates that the CSI corresponding to the TRP is valid. invalid.
- the user terminal may add 2 bits to the CSI report to indicate the validity of the CSI corresponding to TRP1 and the validity of the CSI corresponding to TRP2.
- the value of the newly added 2 bits in the CSI report is 01, it indicates that the CSI corresponding to TRP1 is invalid and the CSI corresponding to TRP2 is valid.
- the CSI report may be considered invalid.
- the user terminal reports two CSI reports, and the value of RI in the CSI report corresponding to TRP2 is greater than 4. Therefore, it can be determined that the CSI corresponding to TRP2 is meaningless.
- the user terminal sends CSI validity information to the network side to indicate that the CSI corresponding to TRP2 is invalid and the corresponding CSI when TRP1 is valid.
- the following method can be used to calculate the CSI information corresponding to the TRP:
- the interference information corresponding to the first TRP is obtained, and the CSI corresponding to the first TRP is calculated according to the interference information, until the calculated
- the CSI corresponding to each TRP, and the interference information includes measurement and calculation results of TRPs in the multiple TRPs except the second TRP, where the first TRP is any one of the multiple TRPs. one.
- the user terminal may also not need to send CSI validity information to the network side.
- the network side learns that the RI in a CSI report is greater than 4, it can know that the CSI report is invalid.
- the user terminal reports the validity indication information corresponding to each CSI to the network side, so that the network side can know which TRP corresponding to the CSI is valid and which TRP corresponding CSI is invalid, so that the corresponding transmission scheme can be adjusted. Adjustments to improve communication system performance.
- the values of CSI requests (requests) in different downlink control information are the same.
- the validity indication information corresponding to the CSI corresponding to the second TRP when it is detected that the validity indication information corresponding to the CSI corresponding to the second TRP is invalid, it can be determined that the measurement corresponding to the second TRP is not calculated when the CSI corresponding to the first TRP is calculated.
- the calculation result is taken as the inter-TRP interference of the first TRP.
- an embodiment of the present application further provides a user terminal 20, including: a receiving unit 201, a determining unit 202, and a computing unit 203, wherein:
- a receiving unit 201 configured to receive network configuration information delivered by the network side
- a determining unit 202 configured to determine the CSI calculation behavior according to the network configuration information
- the calculation unit 203 is configured to calculate the CSI corresponding to each TRP in the multiple transmission and reception point TRPs when the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, and the multiple TRPs correspond to one codeword.
- the determining unit 202 is configured to determine the CSI calculation behavior according to the network configuration information in any of the following manners: obtain CSI report configuration information according to the network configuration information; CSI reporting configuration information to determine CSI calculation behavior; or, according to the network configuration information, to obtain CSI resource configuration information for channel measurement; according to the CSI resource configuration information for channel measurement, to determine CSI calculation behavior; or, According to the network configuration information, the indication information used to indicate the CSI calculation behavior is acquired; and the CSI calculation behavior is determined according to the indication information used to indicate the CSI calculation behavior.
- the determining unit 202 is configured to obtain the CSI report configuration information according to the network configuration information in any of the following manners: obtain the CSI report configuration information from the network configuration information Or, obtain the information indicated by the downlink control information from the network configuration information, and the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; CSI report configuration information, which is determined to be the CSI report configuration information.
- the determining unit 202 is configured to obtain rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the rank information is used to Indicates the maximum number of ranks included in the CSI report; when the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is CSI calculation based on non-coherent joint transmission .
- the calculating unit 203 is configured to, when the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs; correspond to other TRPs
- the measurement and calculation result of the NZP CSI-RS resource is used as the interference information corresponding to the first TRP, and the CSI corresponding to the first TRP is calculated according to the interference information corresponding to the first TRP, until each TRP is calculated.
- the resource set includes one NZP CSI-RS resource
- the NZP CSI-RS resource includes port groups with different QCL information
- the measurement and calculation results of the port groups corresponding to other TRPs are used as the first interference information corresponding to the TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP until the CSI corresponding to each TRP is calculated;
- the first TRP is the multiple Any one of the plurality of TRPs, and the other TRPs are TRPs other than the first TRP among the plurality of TRPs.
- the determining unit 202 is configured to obtain, according to the network configuration information, the CSI resource configuration information used for channel measurement in any of the following manners: from the network configuration information, obtain all the CSI resource configuration information used for channel measurement; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger;
- the CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state is determined as the CSI resource configuration information for channel measurement.
- the determining unit 202 is configured to, when a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources, determine whether the CSI calculation behavior is based on Incoherent joint transmission for CSI calculation.
- the calculation unit 203 is configured to use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP,
- the interference information calculates the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are the multiple TRPs. TRPs other than the first TRP among the TRPs.
- the determining unit 202 is configured to, when there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and QCLs corresponding to different port groups When the information is different, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- the calculation unit 203 is configured to use the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and calculate according to the interference information corresponding to the first TRP CSI corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are among the multiple TRPs TRPs other than the first TRP.
- the determining unit 202 is configured to acquire the information indicated by the downlink control information from the network configuration information; acquire the CSI aperiodic trigger state according to the information indicated by the downlink control information Contains the indication information used to indicate the CSI calculation behavior.
- the indication information for indicating the CSI calculation behavior is rank joint information
- the rank joint information is that the reported different values satisfy the candidate RI pairs.
- the calculation unit 203 is configured to use the measurement calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs , the other TRPs are TRPs other than the first TRP among the multiple TRPs, and the measurement calculation results corresponding to the other TRPs are: in the configuration information related to the other TRPs, in the resource set used for channel measurement Measurement and calculation results of NZP CSI-RS resources.
- the values corresponding to the CSI requests in each downlink control information are equal.
- the method further includes: a reporting unit, configured to report the CSI corresponding to each TRP to the network side.
- the reporting unit is configured to report the CSI corresponding to each TRP and the validity indication information corresponding to each CSI to the network side.
- the length of the validity indication information is 1 bit or 2 bits.
- the reporting unit is configured to report the CSI corresponding to each TRP to the network side in any of the following manners:
- each CSI report carries CSI corresponding to one TRP.
- each CSI report when each CSI report carries CSI corresponding to one TRP, the CSI reports corresponding to each TRP have the same priority, and any even subband CSI in the CSI report corresponding to each TRP has the same priority.
- the priority is higher than the priority of any odd subband CSI in the CSI reports corresponding to all TRPs
- the embodiments of the present application further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are run, the steps of the CSI calculation method provided in any of the foregoing embodiments of the present application are executed.
- An embodiment of the present application further provides another user terminal, including a memory and a processor, where the memory stores computer instructions that can be run on the processor, and when the processor runs the computer instructions, it can be executed in a method. All or part of the steps can be completed by instructing the relevant hardware through a program, and the program is to execute the steps of the CSI calculation method provided in any of the above-mentioned embodiments of the present application.
- ROM read only memory
- RAM random access memory
- magnetic disk magnetic disk
- optical disk and so on.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiments of the present application provide a CSI computation method, a user terminal and a computer-readable storage medium. The method comprises: receiving network configuration information issued by a network side; determining a CSI computation behavior according to the network configuration information; and when the CSI computation behavior is to perform CSI computation on the basis of non-coherent joint transmission, computing CSI corresponding to each transmission and reception point (TRP) in a plurality of TRPs, wherein the plurality of TRPs correspond to a codeword. By means of the solution, CSI computation can be performed on a non-coherent joint transmission scheme.
Description
本申请要求于2020年10月23日递交的申请号为“202011148729.5”、发明名称为“CSI计算方法、用户终端及计算机可读存储介质”的发明申请的优先权,上述在先申请的内容通过引用结合在本申请中。This application claims the priority of the invention application with the application number "202011148729.5" and the invention title "CSI calculation method, user terminal and computer-readable storage medium" filed on October 23, 2020. The content of the above-mentioned earlier application is approved by Reference is incorporated in this application.
本申请涉及无线通信领域,尤其涉及一种CSI计算方法、用户终端及计算机可读存储介质。The present application relates to the field of wireless communication, and in particular, to a CSI calculation method, a user terminal, and a computer-readable storage medium.
在新空口(New Radio,NR)R15中已经明确信道状态信息(Channel State Information,CSI)协议框架,即用户终端基于网络侧配置的CSI报告配置(CSI-ReportConfig)信息获知需要测量的上报内容,从而获悉CSI计算是基于哪一种传输方案,并基于CSI报告配置信息所关联的CSI资源配置(CSI-ResourceConfig)进行CSI计算。The Channel State Information (CSI) protocol framework has been clarified in New Radio (NR) R15, that is, the user terminal learns the report content to be measured based on the CSI-ReportConfig (CSI-ReportConfig) information configured on the network side. Thereby, it is known which transmission scheme the CSI calculation is based on, and the CSI calculation is performed based on the CSI resource configuration (CSI-ResourceConfig) associated with the CSI report configuration information.
在目前的NR CSI协议框架中,NR协议仅支持闭环传输方案和开环/半开环传输方案。对于非相干联合传输(non-coherent joint transmission)方案,现有的NR协议并没有涉及。In the current NR CSI protocol framework, the NR protocol only supports closed-loop transmission schemes and open-loop/semi-open-loop transmission schemes. For the non-coherent joint transmission scheme, the existing NR protocol is not involved.
发明内容SUMMARY OF THE INVENTION
本申请实施例解决的是如何对非相干联合传输方案进行CSI计算。The embodiments of the present application solve how to perform CSI calculation for the non-coherent joint transmission scheme.
本申请实施例的第一方面提供了一种CSI计算方法,该方法包括:A first aspect of the embodiments of the present application provides a CSI calculation method, the method comprising:
接收网络侧下发的网络配置信息;Receive the network configuration information delivered by the network side;
根据所述网络配置信息,确定CSI计算行为;determining the CSI calculation behavior according to the network configuration information;
当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。When the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission, the CSI corresponding to each TRP in the multiple transmission and reception point TRPs is calculated, and the multiple TRPs correspond to one codeword.
结合第一方面,在一个可能的实现方式中,所述根据所述网络配置信息,确定CSI计算行为,包括:With reference to the first aspect, in a possible implementation manner, the determining the CSI calculation behavior according to the network configuration information includes:
根据所述网络配置信息,获取CSI报告配置信息;根据所述CSI报告配 置信息,确定CSI计算行为;According to the network configuration information, obtain CSI report configuration information; According to the CSI report configuration information, determine the CSI calculation behavior;
或,根据所述网络配置信息,获取用于信道测量的CSI资源配置信息;根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为;Or, obtain CSI resource configuration information for channel measurement according to the network configuration information; determine a CSI calculation behavior according to the CSI resource configuration information for channel measurement;
或,根据所述网络配置信息,获取用于指示CSI计算行为的指示信息;根据所述用于指示CSI计算行为的指示信息,确定CSI计算行为。Or, according to the network configuration information, obtain indication information for indicating the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information for indicating the CSI calculation behavior.
结合第一方面,在一个可能的实现方式中,所述根据所述网络配置信息,获取CSI报告配置信息,包括以下任一种:With reference to the first aspect, in a possible implementation manner, the acquiring CSI report configuration information according to the network configuration information includes any of the following:
从所述网络配置信息中,获取所述CSI报告配置信息;obtaining the CSI report configuration information from the network configuration information;
或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所CSI非周期触发状态所关联的CSI报告配置信息,确定为所述CSI报告配置信息。Or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; Report configuration information, and determine to report configuration information for the CSI.
结合第一方面,在一个可能的实现方式中,所述根据所述CSI报告配置信息,确定CSI计算行为,包括:With reference to the first aspect, in a possible implementation manner, the determining the CSI calculation behavior according to the CSI reporting configuration information includes:
从所述CSI报告配置信息中,获取秩信息,所述秩信息用于指示CSI报告包含的秩数目,或所述秩信息用于指示CSI报告包含的最大秩数目;obtaining rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the rank information is used to indicate the maximum number of ranks included in the CSI report;
当所述秩信息指示CSI报告包含的秩数目为2,或指示CSI报告包含的最大秩数目为2时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
当资源集合包括多个NZP CSI-RS资源时,所述多个NZP CSI-RS资源与所述多个TRP对应;When the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs;
将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每个TRP对应的CSI;Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated Describe the CSI corresponding to each TRP;
当所述资源集合包括一个NZP CSI-RS资源,且所述NZP CSI-RS资源包括QCL信息不同的端口组时,将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所 述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI;When the resource set includes one NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement and calculation results of the port groups corresponding to other TRPs are used as the interference corresponding to the first TRP information, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated;
其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。The first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
结合第一方面,在一个可能的实现方式中,所述根据所述网络配置信息,获取用于信道测量的CSI资源配置信息,包括:With reference to the first aspect, in a possible implementation manner, the obtaining CSI resource configuration information for channel measurement according to the network configuration information includes:
从所述网络配置信息中,获取所述用于信道测量的CSI资源配置信息;obtaining the CSI resource configuration information for channel measurement from the network configuration information;
或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息,确定为所述用于信道测量的CSI资源配置信息。Or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; associate the selected CSI aperiodic trigger state with The CSI resource configuration information used for channel measurement is determined as the CSI resource configuration information used for channel measurement.
结合第一方面,在一个可能的实现方式中,所述根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为,包括:With reference to the first aspect, in a possible implementation manner, determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement includes:
当所述用于信道测量的CSI资源配置信息中的一个资源集合包括至少两个NZP CSI-RS资源时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated The CSI corresponding to each TRP, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
结合第一方面,在一个可能的实现方式中,所述根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为,包括:With reference to the first aspect, in a possible implementation manner, determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement includes:
当所述用于信道测量的CSI资源配置信息中的一个NZP CSI-RS资源存在至少两个端口组,且不同端口组对应的QCL信息不同时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and the QCL information corresponding to different port groups is different, it is determined that the CSI calculation behavior is to perform CSI based on non-coherent joint transmission calculate.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP 中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。Taking the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until each of the CSI corresponding to a TRP, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
结合第一方面,在一个可能的实现方式中,所述根据所述网络配置信息,获取用于指示CSI计算行为的指示信息,包括:With reference to the first aspect, in a possible implementation manner, the obtaining, according to the network configuration information, the indication information for indicating the CSI calculation behavior includes:
从所述网络配置信息中,获取下行控制信息所指示的信息;From the network configuration information, obtain the information indicated by the downlink control information;
根据所述下行控制信息所指示的信息,获取CSI非周期触发状态包含的用于指示CSI计算行为的指示信息。According to the information indicated by the downlink control information, the indication information included in the CSI aperiodic trigger state and used to indicate the CSI calculation behavior is acquired.
结合第一方面,在一个可能的实现方式中,所述用于指示CSI计算行为的指示信息为秩联合信息,所述秩联合信息为上报的不同值取值满足候选RI对。With reference to the first aspect, in a possible implementation manner, the indication information for indicating the CSI calculation behavior is rank joint information, and the rank joint information is that the reported different values satisfy candidate RI pairs.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
将同一个CSI非周期触发状态中,其他TRP对应的测量计算结果,作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP,所述其他TRP对应的测量计算结果为:其他TRP相关的配置信息中,用于信道测量的资源集合中的NZP CSI-RS资源的测量计算结果。Taking the measurement and calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, Until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs , the measurement calculation result corresponding to the other TRP is: in the configuration information related to the other TRP, the measurement calculation result of the NZP CSI-RS resource in the resource set used for channel measurement.
结合第一方面,在一个可能的实现方式中,当所述网络配置信息包括多个下行控制信息所指示的信息时,每一个下行控制信息中的CSI请求对应的取值相等。With reference to the first aspect, in a possible implementation manner, when the network configuration information includes information indicated by a plurality of downlink control information, the values corresponding to the CSI requests in each downlink control information are equal.
结合第一方面,在一个可能的实现方式中,在所述计算多个发送接收点TRP中的每个TRP对应的CSI之后,还包括:With reference to the first aspect, in a possible implementation manner, after the calculating the CSI corresponding to each TRP in the multiple sending and receiving point TRPs, the method further includes:
将所述每个TRP对应的CSI上报至网络侧。The CSI corresponding to each TRP is reported to the network side.
结合第一方面,在一个可能的实现方式中,所述将所述每个TRP对应的CSI上报至网络侧,包括:With reference to the first aspect, in a possible implementation manner, the reporting of the CSI corresponding to each TRP to the network side includes:
将所述每个TRP对应的CSI以及每一个CSI对应的有效性指示信息上报至所述网络侧。The CSI corresponding to each TRP and the validity indication information corresponding to each CSI are reported to the network side.
结合第一方面,在一个可能的实现方式中,所述有效性指示信息的长度为1比特或2比特。With reference to the first aspect, in a possible implementation manner, the length of the validity indication information is 1 bit or 2 bits.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
当检测到所述多个TRP中的第二TRP对应的CSI对应的有效性指示信息指示为无效时,获取所述第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述干扰信息包括:所述多个TRP中除所述第二TRP以外的TRP对应的测量结果,其中,所述第一TRP为所述多个TRP中的任一个。When it is detected that the validity indication information corresponding to the CSI corresponding to the second TRP in the plurality of TRPs is invalid, obtain the interference information corresponding to the first TRP, and calculate the corresponding information of the first TRP according to the interference information until the CSI corresponding to each TRP is calculated, wherein the interference information includes: measurement results corresponding to TRPs other than the second TRP among the multiple TRPs, wherein the first TRP is any one of the multiple TRPs.
结合第一方面,在一个可能的实现方式中,采用如下任一种方式将所述每个TRP对应的CSI上报至所述网络侧:With reference to the first aspect, in a possible implementation manner, the CSI corresponding to each TRP is reported to the network side in any of the following manners:
向所述网络侧上报一条CSI报告,且所述一条CSI报告中承载所述每一个TRP对应的CSI;reporting a CSI report to the network side, and the CSI report corresponding to each TRP is carried in the CSI report;
向所述网络侧上报多条CSI报告,且每一条CSI报告承载一个TRP对应的CSI。Multiple CSI reports are reported to the network side, and each CSI report carries CSI corresponding to one TRP.
结合第一方面,在一个可能的实现方式中,当每一条CSI报告承载一个TRP对应的CSI时,每一个TRP对应的CSI报告的优先级均相同,且每一个TRP对应的CSI报告中任一偶数子带CSI的优先级均高于所有TRP对应的CSI报告中任一奇数子带CSI的优先级。In combination with the first aspect, in a possible implementation, when each CSI report carries CSI corresponding to one TRP, the priority of the CSI report corresponding to each TRP is the same, and any one of the CSI reports corresponding to each TRP has the same priority. The priority of the even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
当第一TRP对应的CSI与所述多个TRP中的第二TRP对应的CSI相同,且所述第一TRP对应的CSI包括CRI、RI、PMI以及CQI中的至少一种时,获取第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的 CSI,直至计算出所述每一个TRP对应的CSI,所述干扰信息包括所述多个TRP中除所述第二TRP之外的TRP的测量计算结果,其中,所述第一TRP为所述多个TRP中的任一个。When the CSI corresponding to the first TRP is the same as the CSI corresponding to the second TRP among the multiple TRPs, and the CSI corresponding to the first TRP includes at least one of CRI, RI, PMI, and CQI, obtain the first TRP The interference information corresponding to the TRP, the CSI corresponding to the first TRP is calculated according to the interference information until the CSI corresponding to each TRP is calculated, and the interference information includes dividing the second TRP among the multiple TRPs A measurement and calculation result of a TRP other than , wherein the first TRP is any one of the multiple TRPs.
结合第一方面,在一个可能的实现方式中,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:With reference to the first aspect, in a possible implementation manner, the calculating CSI corresponding to each TRP in the multiple sending and receiving point TRPs includes:
当检测到所述多个TRP中的第二TRP对应的CSI的RI大于4时,获取第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,所述干扰信息包括所述多个TRP中除所述第二TRP之外的TRP的测量计算结果,其中,所述第一TRP为所述多个TRP中的任一个。When it is detected that the RI corresponding to the CSI corresponding to the second TRP in the multiple TRPs is greater than 4, the interference information corresponding to the first TRP is obtained, and the CSI corresponding to the first TRP is calculated according to the interference information, until the calculated The CSI corresponding to each TRP, and the interference information includes measurement and calculation results of TRPs in the multiple TRPs except the second TRP, where the first TRP is any one of the multiple TRPs. one.
本申请实施例的第二方面提供了一种用户终端,包括:A second aspect of the embodiments of the present application provides a user terminal, including:
接收单元,用于接收网络侧下发的网络配置信息;a receiving unit, configured to receive the network configuration information delivered by the network side;
确定单元,用于根据所述网络配置信息,确定CSI计算行为;a determining unit, configured to determine the CSI calculation behavior according to the network configuration information;
计算单元,用于当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。A calculation unit, configured to calculate CSI corresponding to each TRP in the multiple transmission and reception point TRPs when the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, and the multiple TRPs correspond to one codeword.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式确定CSI计算行为:根据所述网络配置信息,获取CSI报告配置信息;根据所述CSI报告配置信息,确定CSI计算行为;或,根据所述网络配置信息,获取用于信道测量的CSI资源配置信息;根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为;或,根据所述网络配置信息,获取用于指示CSI计算行为的指示信息;根据所述用于指示CSI计算行为的指示信息,确定CSI计算行为。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to determine the CSI calculation behavior according to the network configuration information in any of the following manners: obtain CSI report configuration information according to the network configuration information ; According to the CSI report configuration information, determine the CSI calculation behavior; Or, according to the network configuration information, obtain the CSI resource configuration information for channel measurement; According to the CSI resource configuration information for channel measurement, determine the CSI calculation or, according to the network configuration information, obtain indication information used to indicate the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information used to indicate the CSI calculation behavior.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式获取CSI报告配置信息:从所述网络配置信息中,获取所述CSI报告配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求 触发选择的CSI非周期触发状态;将所CSI非周期触发状态所关联的CSI报告配置信息,确定为所述CSI报告配置信息。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to obtain the CSI report configuration information according to the network configuration information in any of the following manners: from the network configuration information, obtain the CSI report configuration information; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; The CSI report configuration information associated with the state is determined to be the CSI report configuration information.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于从所述CSI报告配置信息中,获取秩信息,所述秩信息用于指示CSI报告包含的秩数目,或所述秩信息用于指示CSI报告包含的最大秩数目;当所述秩信息指示CSI报告包含的秩数目为2,或指示CSI报告包含的最大秩数目为2时,确定CSI计算行为是基于非相干联合传输进行CSI计算。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to obtain rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the The rank information is used to indicate the maximum number of ranks included in the CSI report; when the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is based on non-coherent joint The transmission performs CSI calculations.
结合第二方面,在一个可能的实现方式中,所述计算单元,用于当资源集合包括多个NZP CSI-RS资源时,所述多个NZP CSI-RS资源与所述多个TRP对应;将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每个TRP对应的CSI;当所述资源集合包括一个NZP CSI-RS资源,且所述NZP CSI-RS资源包括QCL信息不同的端口组时,将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI;其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。With reference to the second aspect, in a possible implementation manner, the computing unit is configured to, when the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs; Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated Describe the CSI corresponding to each TRP; when the resource set includes an NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement and calculation results of the port groups corresponding to other TRPs are used as interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated; wherein, the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式获取用于信道测量的CSI资源配置信息:从所述网络配置信息中,获取所述用于信道测量的CSI资源配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息,确定为所述用于信道测量的CSI资源配置信息。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to acquire, according to the network configuration information, the CSI resource configuration information used for channel measurement in any of the following manners: from the network configuration information , obtain the CSI resource configuration information used for channel measurement; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI non-signal selected by the CSI request trigger Periodic trigger state; determine the CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state as the CSI resource configuration information for channel measurement.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于当所述用于信道测量的CSI资源配置信息中的一个资源集合包括至少两个NZP CSI-RS资源时,确定CSI计算行为是基于非相干联合传输进行CSI计算。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to determine the CSI when a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources The calculation behavior is based on non-coherent joint transmission for CSI calculation.
结合第二方面,在一个可能的实现方式中,所述计算单元,用于将其他 TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。With reference to the second aspect, in a possible implementation manner, the calculation unit is configured to use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and use the calculation results according to the first TRP. The interference information corresponding to a TRP calculates the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs is a TRP other than the first TRP among the plurality of TRPs.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于当所述用于信道测量的CSI资源配置信息中的一个NZP CSI-RS资源存在至少两个端口组,且不同端口组对应的QCL信息不同时,确定CSI计算行为是基于非相干联合传输进行CSI计算。With reference to the second aspect, in a possible implementation, the determining unit is configured to, when there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and different ports When the QCL information corresponding to the groups is different, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
结合第二方面,在一个可能的实现方式中,所述计算单元,用于将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。With reference to the second aspect, in a possible implementation manner, the calculation unit is used to use the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and according to the corresponding interference information of the first TRP Calculate the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are the TRPs other than the first TRP among the plurality of TRPs.
结合第二方面,在一个可能的实现方式中,所述确定单元,用于从所述网络配置信息中,获取下行控制信息所指示的信息;根据所述下行控制信息所指示的信息,获取CSI非周期触发状态包含的用于指示CSI计算行为的指示信息。With reference to the second aspect, in a possible implementation manner, the determining unit is configured to acquire the information indicated by the downlink control information from the network configuration information; acquire the CSI according to the information indicated by the downlink control information The indication information included in the aperiodic trigger state and used to indicate the CSI calculation behavior.
结合第二方面,在一个可能的实现方式中,所述用于指示CSI计算行为的指示信息为秩联合信息,所述秩联合信息为上报的不同值取值满足候选RI对。With reference to the second aspect, in a possible implementation manner, the indication information for indicating the CSI calculation behavior is rank joint information, and the rank joint information is that the reported different values satisfy candidate RI pairs.
结合第二方面,在一个可能的实现方式中,所述计算单元,用于将同一个CSI非周期触发状态中,其他TRP对应的测量计算结果,作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP,所述其他TRP对应的测量计算结果为:其他TRP相关的配置信息中,用于信道测量的资源集合中的NZP CSI-RS资源的测量计算结果。With reference to the second aspect, in a possible implementation manner, the calculation unit is configured to use the measurement calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and Calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, The other TRPs are TRPs other than the first TRP among the multiple TRPs, and the measurement calculation results corresponding to the other TRPs are: in the configuration information related to the other TRPs, the NZP in the resource set used for channel measurement Measurement and calculation results of CSI-RS resources.
结合第二方面,在一个可能的实现方式中,其特征在于,当所述网络配 置信息包括多个下行控制信息所指示的信息时,每一个下行控制信息中的CSI请求对应的取值相等。In combination with the second aspect, in a possible implementation, when the network configuration information includes information indicated by multiple downlink control information, the values corresponding to the CSI requests in each downlink control information are equal.
结合第二方面,在一个可能的实现方式中,还包括:上报单元,用于将所述每个TRP对应的CSI上报至网络侧。With reference to the second aspect, in a possible implementation manner, the method further includes: a reporting unit, configured to report the CSI corresponding to each TRP to the network side.
结合第二方面,在一个可能的实现方式中,所述上报单元,用于将所述每个TRP对应的CSI以及每一个CSI对应的有效性指示信息上报至所述网络侧。With reference to the second aspect, in a possible implementation manner, the reporting unit is configured to report the CSI corresponding to each TRP and the validity indication information corresponding to each CSI to the network side.
结合第二方面,在一个可能的实现方式中,所述有效性指示信息的长度为1比特或2比特。With reference to the second aspect, in a possible implementation manner, the length of the validity indication information is 1 bit or 2 bits.
结合第二方面,在一个可能的实现方式中,所述上报单元,用于采用如下任一种方式将所述每个TRP对应的CSI上报至所述网络侧:With reference to the second aspect, in a possible implementation manner, the reporting unit is configured to report the CSI corresponding to each TRP to the network side in any of the following manners:
向所述网络侧上报一条CSI报告,且所述一条CSI报告中承载所述每一个TRP对应的CSI;reporting a CSI report to the network side, and the CSI report corresponding to each TRP is carried in the CSI report;
向所述网络侧上报多条CSI报告,且每一条CSI报告承载一个TRP对应的CSI。Multiple CSI reports are reported to the network side, and each CSI report carries CSI corresponding to one TRP.
结合第二方面,在一个可能的实现方式中,当每一条CSI报告承载一个TRP对应的CSI时,每一个TRP对应的CSI报告的优先级均相同,且每一个TRP对应的CSI报告中任一偶数子带CSI的优先级均高于所有TRP对应的CSI报告中任一奇数子带CSI的优先级。In combination with the second aspect, in a possible implementation, when each CSI report carries CSI corresponding to one TRP, the CSI reports corresponding to each TRP have the same priority, and any one of the CSI reports corresponding to each TRP has the same priority. The priority of the even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
本申请实施例还提供了一种计算机可读存储介质,其上存储有计算机指令,所述计算机指令运行时执行上述任一种所述的CSI计算方法的步骤。Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are run, the steps of any of the foregoing CSI calculation methods are executed.
本申请实施例还提供了另一种用户终端,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机指令,所述处理器运行所述计算机指令时执行上述任一种所述的CSI计算方法的步骤。An embodiment of the present application further provides another user terminal, including a memory and a processor, where the memory stores computer instructions that can be run on the processor, and the processor executes any of the above when running the computer instructions. A kind of steps of the CSI calculation method.
与现有技术相比,本申请实施例的技术方案具有以下有益效果:Compared with the prior art, the technical solutions of the embodiments of the present application have the following beneficial effects:
根据网络侧下发的网络配置信息确定CSI计算行为是基于非相干联合传输进行CSI计算时,可以在多个TRP对应一个TRP时,计算多个TRP对应的CSI时,从而可以实现非相干联合传输的相关CSI计算。When it is determined according to the network configuration information delivered by the network side that the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, when multiple TRPs correspond to one TRP, the CSI corresponding to multiple TRPs can be calculated, so that incoherent joint transmission can be realized The relevant CSI calculation of .
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.
图1是本申请实施例中的一种CSI计算方法的流程图;FIG. 1 is a flowchart of a CSI calculation method in an embodiment of the present application;
图2是本申请实施例中的一种用户终端的结构示意图。FIG. 2 is a schematic structural diagram of a user terminal in an embodiment of the present application.
在目前的NR CSI协议框架中,NR协议仅支持闭环传输方案和开环/半开环传输方案。对应非相干联合传输方案,现有的NR协议并没有涉及。In the current NR CSI protocol framework, the NR protocol only supports closed-loop transmission schemes and open-loop/semi-open-loop transmission schemes. Corresponding to the non-coherent joint transmission scheme, the existing NR protocol is not involved.
在本申请实施例中,根据网络侧下发的网络配置信息确定CSI计算行为是基于非相干联合传输进行CSI计算时,可以在多个TRP对应一个码字时,计算多个TRP对应的CSI时,从而可以实现非相干联合传输的相关CSI计算。In the embodiment of the present application, when it is determined according to the network configuration information delivered by the network side that the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, when multiple TRPs correspond to one codeword, when calculating CSI corresponding to multiple TRPs , so that the relevant CSI calculation of non-coherent joint transmission can be realized.
为使本申请的上述目的、特征和有益效果能够更为明显易懂,下面结合附图对本申请的具体实施例做详细的说明。In order to make the above objects, features and beneficial effects of the present application more clearly understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
本申请实施例提供了一种CSI计算方法,参照图1,以下通过具体步骤进行详细说明。An embodiment of the present application provides a CSI calculation method. Referring to FIG. 1 , the following describes in detail through specific steps.
步骤S101,接收网络侧下发的网络配置信息。Step S101, receiving the network configuration information delivered by the network side.
在具体实施中,当网络侧需要获取CSI时,网络侧可以向用户终端下发网络配置信息。网络侧向用户终端下发的网络配置信息可以用于指示用户终端上报CSI。In a specific implementation, when the network side needs to acquire the CSI, the network side can deliver network configuration information to the user terminal. The network configuration information delivered by the network side to the user terminal may be used to instruct the user terminal to report CSI.
在本申请实施例中,网络侧向用户终端下发的网络配置信息可以包括CSI报告配置信息,也可以包括用于信道测量的CSI资源配置信息,还可以包括下行控制信息指示的信息。In this embodiment of the present application, the network configuration information delivered by the network side to the user terminal may include CSI report configuration information, may also include CSI resource configuration information used for channel measurement, and may also include information indicated by downlink control information.
可以理解的是,网络侧下发的网络配置信息还可以为其他类型的信息,只要能够指示用户终端上报CSI即可,并不仅限于上述所述的几种信息类型。It can be understood that the network configuration information delivered by the network side may also be other types of information, as long as the user terminal can be instructed to report the CSI, and is not limited to the above-mentioned types of information.
步骤S102,根据所述网络配置信息,确定CSI计算行为。Step S102: Determine the CSI calculation behavior according to the network configuration information.
在具体实施中,网络侧可以在CSI报告配置信息中,设置用于指示CSI计算行为的计算行为指示信息。网络侧设置的计算行为指示信息可以用于指示CSI计算行为是基于非相干联合传输进行CSI计算,还是基于闭环传输进行CSI计算、或者基于开环/半开环传输进行CSI计算、或者基于单TRP传输。其中,所述非相干联合传输,可以是通过多于一个TRP进行传输,或者也可以是通过多于一个TRP且非单频网(SFN)的方式进行传输。In a specific implementation, the network side may set calculation behavior indication information for indicating the CSI calculation behavior in the CSI report configuration information. The calculation behavior indication information set by the network side may be used to indicate whether the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, or based on closed-loop transmission for CSI calculation, or based on open-loop/half-open-loop transmission for CSI calculation, or based on single TRP. transmission. Wherein, the non-coherent joint transmission may be transmitted through more than one TRP, or may also be transmitted through more than one TRP and not a single frequency network (SFN).
用户终端在接收到网络侧配置的网络配置信息后,即可获知网络侧配置的计算行为指示信息,进而可以确定CSI计算行为。After receiving the network configuration information configured on the network side, the user terminal can learn the calculation behavior indication information configured on the network side, and then can determine the CSI calculation behavior.
例如,网络侧在CSI报告配置信息中增加1比特信息,增加的1比特信息用来表征计算行为指示信息。当计算行为指示信息对应的值为1时,指示用户终端进行的CSI计算行为是基于非相干联合传输进行CSI计算;当计算行为指示信息对应的值为0时,指示用户终端进行的CSI计算行为是基于其他传输方案进行CSI计算。For example, the network side adds 1-bit information to the CSI report configuration information, and the added 1-bit information is used to represent the calculation behavior indication information. When the value corresponding to the calculation behavior indication information is 1, the CSI calculation behavior performed by the user terminal is instructed to perform CSI calculation based on non-coherent joint transmission; when the value corresponding to the calculation behavior indication information is 0, the CSI calculation behavior performed by the user terminal is instructed CSI calculation is performed based on other transmission schemes.
在具体实施中,网络侧也可以在网络配置信息中,向用户终端指示CSI计算行为。在实际应用中,CSI计算行为可以是基于单TRP进行传输,还可以是基于非相干联合传输进行CSI计算。In a specific implementation, the network side may also indicate the CSI calculation behavior to the user terminal in the network configuration information. In practical applications, the CSI calculation behavior may be based on single TRP transmission, or may be CSI calculation based on non-coherent joint transmission.
用户终端在接收到网络侧下发的网络配置信息后,即可确定CSI计算行为。After receiving the network configuration information delivered by the network side, the user terminal can determine the CSI calculation behavior.
在具体实施中,用户终端可以根据网络配置信息,获取CSI报告配置信息;根据获取到的CSI报告配置信息,确定CSI计算行为。CSI报告配置信息可以直接从网络配置信息中获取,也可以间接根据网络配置信息得到。In a specific implementation, the user terminal may obtain the CSI report configuration information according to the network configuration information; and determine the CSI calculation behavior according to the obtained CSI report configuration information. The CSI report configuration information may be obtained directly from the network configuration information, or may be obtained indirectly from the network configuration information.
在本申请实施例中,网络侧下发的网络配置信息可以包括CSI报告配置信息,因此,可以直接从网络侧下发的网络配置信息中获取CSI报告配置信息。In this embodiment of the present application, the network configuration information delivered by the network side may include CSI report configuration information. Therefore, the CSI report configuration information may be directly obtained from the network configuration information delivered by the network side.
在本申请实施例中,网络侧下发的网络配置信息还可以包括下行控制信息所指示的信息,下行控制信息所指示的信息包括CSI请求(CSI request)触发选择的CSI非周期触发状态(CSI-AperiodicTriggerState),因此,可以获取所选择的CSI非周期触发状态所关联的CSI报告配置信息。In this embodiment of the present application, the network configuration information delivered by the network side may further include information indicated by the downlink control information, and the information indicated by the downlink control information includes a CSI aperiodic trigger state (CSI request) triggering selection -AperiodicTriggerState), therefore, the CSI report configuration information associated with the selected CSI aperiodic trigger state can be acquired.
在具体实施中,CSI报告配置信息中可以携带有秩(RI)信息,秩信息可 以用于表征CSI报告所包含的RI数目,或者CSI报告包含的最大RI数目,CSI报告为用户终端根据CSI报告配置信息所生成。In a specific implementation, the CSI report configuration information may carry rank (RI) information, and the rank information may be used to represent the number of RIs included in the CSI report, or the maximum number of RIs included in the CSI report. generated from the configuration information.
当在CSI报告配置信息中,秩信息指示CSI报告所包含的RI数目为2,或者指示CSI报告所包含的最大RI数据为2,则用户终端可以判定CSI计算行为是基于非相干联合传输进行CSI计算。When in the CSI report configuration information, the rank information indicates that the number of RIs included in the CSI report is 2, or indicates that the maximum RI data included in the CSI report is 2, then the user terminal can determine that the CSI calculation behavior is based on non-coherent joint transmission for CSI calculate.
例如,在CSI报告配置信息包括秩信息。秩信息为nrofRIsPerReport,用于指示CSI报告所包含的RI数目。当nrofRIsPerReport=2时,用户终端判定CSI计算行为是基于非相干联合传输进行CSI计算。For example, the CSI reporting configuration information includes rank information. The rank information is nrofRIsPerReport, which is used to indicate the number of RIs included in the CSI report. When nrofRIsPerReport=2, the user terminal determines that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
又如,秩信息为maxNrofRIsPerReport,用于指示CSI报告所包含的最大RI数据。当maxNrofRIsPerReport=2时,用户终端判定CSI计算行为是基于非相干联合传输进行CSI计算。For another example, the rank information is maxNrofRIsPerReport, which is used to indicate the maximum RI data included in the CSI report. When maxNrofRIsPerReport=2, the user terminal determines that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
在具体实施中,用户终端可以根据网络配置信息,获取用于信道测量的CSI资源配置信息;根据用于信道测量的CSI资源配置信息,确定CSI计算行为。用于信道测量的CSI资源配置信息可以直接从网络配置信息中获取,也可以间接根据网络配置信息得到。In a specific implementation, the user terminal may obtain the CSI resource configuration information for channel measurement according to the network configuration information; and determine the CSI calculation behavior according to the CSI resource configuration information for channel measurement. The CSI resource configuration information used for channel measurement may be obtained directly from the network configuration information, or may be obtained indirectly according to the network configuration information.
在本申请实施例中,网络侧下发的网络配置信息可以包括用于信道测量的CSI资源配置信息。因此,可以直接从网络侧下发的网络配置信息中获取用于信道测量的CSI资源配置信息。In this embodiment of the present application, the network configuration information delivered by the network side may include CSI resource configuration information used for channel measurement. Therefore, the CSI resource configuration information for channel measurement can be directly obtained from the network configuration information delivered by the network side.
在本申请实施例中,网络侧下发的网络配置信息还可以包括下行控制信息所指示的信息,下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态,因此,可以获取所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息。In this embodiment of the present application, the network configuration information delivered by the network side may also include information indicated by the downlink control information, and the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger. CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state.
在具体实施中,网络侧可以在用于信道测量的CSI资源配置信息中,指示一个资源集合包括至少两个NZP CSI-RS资源。当用户终端接收到网络配置信息后,即可获知用于信道测量的CSI资源配置信息中,指示一个资源集合包括至少两个NZP CSI-RS资源。此时,用户终端可以获知CSI计算行为是基于非相干联合传输进行CSI计算。In a specific implementation, the network side may indicate that a resource set includes at least two NZP CSI-RS resources in the CSI resource configuration information used for channel measurement. After receiving the network configuration information, the user terminal can learn that the CSI resource configuration information used for channel measurement indicates that a resource set includes at least two NZP CSI-RS resources. At this time, the user terminal can learn that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
网络侧也可以在用于信道测量的CSI资源配置信息中,指示一个NZP CSI-RS资源包括多个端口组,且不同端口组的QCL(Quasi co-location)信息不同。当用户终端接收到网络配置信息后,即可获知用于信道测量的CSI资源配置信息中,指示一个NZP CSI-RS资源包括至少两个端口组,且不同端口组的QCL信息不同。此时,用户终端可以获知CSI计算行为是基于非相干联合传输进行CSI计算。The network side may also indicate that one NZP CSI-RS resource includes multiple port groups in the CSI resource configuration information used for channel measurement, and the QCL (Quasi co-location) information of different port groups is different. After receiving the network configuration information, the user terminal can learn that the CSI resource configuration information used for channel measurement indicates that one NZP CSI-RS resource includes at least two port groups, and the QCL information of different port groups is different. At this time, the user terminal can learn that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
在本申请实施例中,网络侧下发的网络配置信息可以是基于下行控制信息指示的信息,下行控制信息指示的信息可以指示用户终端的CSI计算行为是基于非相干联合传输进行CSI计算。In this embodiment of the present application, the network configuration information delivered by the network side may be based on the information indicated by the downlink control information, and the information indicated by the downlink control information may indicate that the CSI calculation behavior of the user terminal is to perform CSI calculation based on non-coherent joint transmission.
在本申请一实施例中,下行控制信息指示的信息具体为CSI请求(CSI request)触发选择的CSI非周期触发状态(CSI-AperiodicTriggerState)。In an embodiment of the present application, the information indicated by the downlink control information is specifically a CSI aperiodic trigger state (CSI-AperiodicTriggerState) selected by a CSI request (CSI request).
CSI非周期触发状态可以包括1比特信息,用于指示用户终端CSI计算行为是基于非相干联合传输还是其他传输方案。CSI非周期触发状态可以包括秩联合信息,通过秩联合信息指示用户终端CSI计算行为是基于非相干联合传输还是其他传输方案。秩联合信息可以是指用户终端上报的两套RI取值需满足候选RI对。The CSI aperiodic trigger status may include 1-bit information, which is used to indicate whether the user terminal CSI calculation behavior is based on non-coherent joint transmission or other transmission schemes. The CSI aperiodic trigger state may include rank joint information, and the rank joint information indicates whether the CSI calculation behavior of the user terminal is based on non-coherent joint transmission or other transmission schemes. The rank joint information may mean that the two sets of RI values reported by the user terminal must satisfy the candidate RI pair.
步骤S103,当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。Step S103, when the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission, calculate the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs, and the multiple TRPs correspond to one codeword.
在非相干传输中,可以支持多TRP(transmission and reception point)传输,TRP可以是网络设备,网络设备可以是接入网设备,例如基站、gNB、eNB等。在本申请实施例中,一个码字(codeword)就是在一个传输时间间隔(Transmission Time Interval,TTI)上发送的包含了CRC位并经过了编码(Encoding)和速率匹配(Ratematching)之后的独立传输块。在LTE中规定,对于每一个用户终端,一个TTI最多可以发送两个码字。一个码字可以对应2个TRP,也可以对应一个TRP。In non-coherent transmission, multi-TRP (transmission and reception point) transmission can be supported, TRP can be network equipment, and network equipment can be access network equipment, such as base station, gNB, eNB, etc. In this embodiment of the present application, a codeword (codeword) is an independent transmission that is sent over a transmission time interval (Transmission Time Interval, TTI) and includes CRC bits and undergoes encoding (Encoding) and rate matching (Ratematching). yuan. It is stipulated in LTE that for each user terminal, one TTI can transmit at most two codewords. A codeword can correspond to two TRPs, or can correspond to one TRP.
在计算TRP对应的CSI时,可以通过如下方法来确定CSI:When calculating the CSI corresponding to the TRP, the CSI can be determined by the following methods:
获取第一TRP对应的干扰信息;obtaining the interference information corresponding to the first TRP;
根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个 TRP对应的CSI,第一TRP为多个TRP中的任一个。Calculate the CSI corresponding to the first TRP according to the interference information until the CSI corresponding to each TRP is calculated, and the first TRP is any one of multiple TRPs.
干扰信息可以是多个TRP中除第一TRP以外的TRP对应的测量计算结果、端口组的测量计算结果等。The interference information may be measurement and calculation results corresponding to TRPs other than the first TRP among the multiple TRPs, measurement and calculation results of a port group, and the like.
一种可能的根据干扰信息计算所述第一TRP对应的CSI的方法包括:A possible method for calculating the CSI corresponding to the first TRP according to the interference information includes:
根据第一TRP的信道测量的NZP CSI-RS资源,获取第一TRP的信道测量结果;Obtain the channel measurement result of the first TRP according to the NZP CSI-RS resources measured by the channel of the first TRP;
基于与多个TRP中除第一TRP以外的TRP对应的测量计算结果、或者端口组的测量计算结果等获取第一TRP的干扰信息;Obtain the interference information of the first TRP based on the measurement calculation result corresponding to the TRP other than the first TRP among the multiple TRPs, or the measurement calculation result of the port group, etc.;
基于第一TRP的信道测量结果和干扰信息,获取第一TRP对应的CSI。The CSI corresponding to the first TRP is acquired based on the channel measurement result and the interference information of the first TRP.
一种可能的实施例如下:A possible example is as follows:
根据第一TRP的信道测量的NZP CSI-RS资源,获取第一TRP的信道测量结果H;Obtain the channel measurement result H of the first TRP according to the NZP CSI-RS resources measured by the channel of the first TRP;
基于与多个TRP中除第一TRP以外的TRP对应的测量计算结果、或者端口组的测量计算结果等获取第一TRP的干扰信息I,Obtain the interference information I of the first TRP based on the measurement and calculation results corresponding to TRPs other than the first TRP among the multiple TRPs, or the measurement and calculation results of the port group, etc.,
那么通过计算第一TRP对应的信干躁比,信干躁比为HHH/(I+N),其中N为噪声功率,并根据信干躁比和CQI的关联表格,确认第一TRP对应的信干躁比所对应的CQI。其中,所述CQI即为所述的CSI。Then, by calculating the signal-to-noise ratio corresponding to the first TRP, the signal-to-noise ratio is HHH/(I+N), where N is the noise power. The CQI corresponding to the signal-to-interference ratio. The CQI is the CSI.
需要说明的是,本申请实施例中所述的码字与实际应用中涉及到的码本中的码字并不是同一个概念。It should be noted that the codewords described in the embodiments of the present application and the codewords in the codebook involved in practical applications are not the same concept.
在具体实施中,用户终端可以基于网络侧配置的CSI报告配置信息,确定CSI计算行为是基于非相干联合传输进行CSI计算。针对用于信道测量的资源集合中,可以包括多个用于信道测量的NZP CSI-RS资源,也可以仅包括一个用于信道测量的NZP CSI-RS资源。当资源集合包括多个用于信道测量的NZP CSI-RS资源时,不同的TRP可以对应不同的NZP CSI-RS资源;当资源集合仅包括一个用于信道测量的NZP CSI-RS资源时,一个NZP CSI-RS资源可以包括多个端口组,不同的TRP可以对应不同的端口组。In a specific implementation, the user terminal may determine, based on the CSI report configuration information configured on the network side, that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission. The resource set for channel measurement may include multiple NZP CSI-RS resources for channel measurement, or may include only one NZP CSI-RS resource for channel measurement. When the resource set includes multiple NZP CSI-RS resources for channel measurement, different TRPs can correspond to different NZP CSI-RS resources; when the resource set includes only one NZP CSI-RS resource for channel measurement, one The NZP CSI-RS resource can include multiple port groups, and different TRPs can correspond to different port groups.
本申请实施例中,其它TRP可以理解为多个TRP中除第一TRP之外的TRP, 第一TRP为多个TRP中的任一个。In this embodiment of the present application, other TRPs may be understood as TRPs other than the first TRP among the multiple TRPs, and the first TRP is any one of the multiple TRPs.
因此,用户终端在计算第一TRP对应的CSI时,可以将其他TRP对应的NZP CSI-RS资源的测量计算结果作为TRP间的干扰信息,或者将同一个NZP CSI-RS资源中其他TRP对应的端口组的测量计算结果作为TRP间的干扰信息。Therefore, when calculating the CSI corresponding to the first TRP, the user terminal can use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information between TRPs, or use the NZP CSI-RS resources corresponding to other TRPs in the same NZP CSI-RS resource. The measurement and calculation result of the port group is used as the interference information between TRPs.
例如,TRP1对应的用于信道测量的资源与TRP2对应的用于信道测量的资源属于同一资源集合。在计算TRP1对应的CSI时,可以将TRP2对应资源的测量计算结果作为TRP1对应的TRP间的干扰信息。For example, the resources used for channel measurement corresponding to TRP1 and the resources used for channel measurement corresponding to TRP2 belong to the same resource set. When calculating the CSI corresponding to the TRP1, the measurement and calculation result of the resource corresponding to the TRP2 may be used as the interference information between the TRPs corresponding to the TRP1.
在具体实施中,用户终端可以基于网络侧配置的用于信道测量的CSI资源配置信息,确定CSI计算行为是基于非相干联合传输进行CSI计算。In a specific implementation, the user terminal may determine, based on the CSI resource configuration information configured by the network side for channel measurement, that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
若CSI资源配置信息中指示一个资源集合包括至少两个NZP CSI-RS资源,则用户终端在计算第一TRP对应的CSI时,可以将其他TRP对应的NZP CSI-RS资源的测量计算结果作为TRP间的干扰信息;若CSI资源配置信息中指示一个NZP CSI-RS资源包括多个端口组,且不同端口组的QCL信息不同,则用户终端在计算第一TRP对应的CSI时,可以将其他TRP对应的NZP CSI-RS资源的端口组的测量计算结果作为第一TRP对应的TRP间的干扰信息。If the CSI resource configuration information indicates that a resource set includes at least two NZP CSI-RS resources, when calculating the CSI corresponding to the first TRP, the user terminal can use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the TRP If the CSI resource configuration information indicates that one NZP CSI-RS resource includes multiple port groups, and the QCL information of different port groups is different, then the user terminal can calculate the CSI corresponding to the first TRP, other TRP The measurement and calculation result of the port group of the corresponding NZP CSI-RS resource is used as the interference information between TRPs corresponding to the first TRP.
在具体实施中,用户终端可以基于网络侧配置的基于下行控制信息指示的信息,确定CSI计算行为是基于非相干联合传输进行CSI计算。用户终端在计算第一TRP对应的CSI时,将同一个CSI非周期触发状态中,其他TRP的测量计算结果作为第一TRP对应的TRP间的干扰信息。其他TRP对应的测量计算结果包括:其他TRP的配置信息中,根据用于信道测量的资源集合中的NZP CSI-RS资源,计算得到的测量计算结果。In a specific implementation, the user terminal may determine that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission based on the information indicated by the downlink control information configured on the network side. When calculating the CSI corresponding to the first TRP, the user terminal uses the measurement and calculation results of other TRPs in the aperiodic trigger state of the same CSI as the interference information between the TRPs corresponding to the first TRP. The measurement calculation results corresponding to the other TRPs include: in the configuration information of the other TRPs, the measurement calculation results are calculated according to the NZP CSI-RS resources in the resource set used for channel measurement.
在本申请实施例中,在将其他TRP对应资源的测量计算结果作为第一TRP对应的TRP间的干扰信息时,可以将其他TRP对应资源的测量计算结果作为第一TRP对应的TRP间的干扰信息。In this embodiment of the present application, when the measurement and calculation results of the resources corresponding to other TRPs are used as the interference information between the TRPs corresponding to the first TRP, the measurement and calculation results of the resources corresponding to the other TRPs may be used as the interference between the TRPs corresponding to the first TRP. information.
在具体实施中,用户终端在计算得到每一个TRP对应的CSI之后,还可以将计算得到的每一个TRP对应的CSI上报至网络侧。In a specific implementation, after calculating the CSI corresponding to each TRP, the user terminal may also report the calculated CSI corresponding to each TRP to the network side.
在本申请实施例中,用户终端在将每一个TRP对应的CSI上报至网络侧时,可以向网络侧上报一条CSI报告。在一条CSI报告中,可以承载有所有TRP对 应的CSI。In this embodiment of the present application, when reporting the CSI corresponding to each TRP to the network side, the user terminal may report a CSI report to the network side. In one CSI report, the CSI corresponding to all TRPs can be carried.
例如,用户终端计算得TRP1对应的CSI以及TRP2对应的CSI后,在一条CSI报告中承载TRP1对应的CSI以及TRP2对应的CSI,并将上述CSI报告发送至网络侧。For example, after calculating the CSI corresponding to TRP1 and the CSI corresponding to TRP2, the user terminal carries the CSI corresponding to TRP1 and the CSI corresponding to TRP2 in one CSI report, and sends the CSI report to the network side.
在本申请实施例中,用户终端也可以向网络侧上报多条CSI报告,每一条CSI报告可以承载一个TRP对应的CSI。In this embodiment of the present application, the user terminal may also report multiple CSI reports to the network side, and each CSI report may carry CSI corresponding to one TRP.
例如,用户终端可以向网络侧上报两条CSI报告,其中一条CSI报告承载有TRP1对应的CSI,另一条CSI报告承载有TRP2对应的CSI。For example, the user terminal may report two CSI reports to the network side, wherein one CSI report carries the CSI corresponding to TRP1, and the other CSI report carries the CSI corresponding to TRP2.
在具体实施中,当采用不同的CSI报告承载不同TRP对应的CSI时,在CSI优先级处理时,不同的CSI报告对应的优先级可以相等。针对每一个TRP对应的CSI报告,其中的任一偶数子带CSI的优先级均高于任一TRP对应的CSI报告中任一奇数子带CSI的优先级。In a specific implementation, when different CSI reports are used to carry CSI corresponding to different TRPs, during CSI priority processing, the priorities corresponding to different CSI reports may be equal. For the CSI report corresponding to each TRP, the priority of any even subband CSI is higher than the priority of any odd subband CSI in the CSI report corresponding to any TRP.
例如,用户终端向网络侧发送两个TRP对应的CSI。针对TRP1对应的CSI报告中任一偶数子带CSI的优先级,均高于TRP1、TRP2中任一奇数子带CSI的优先级。For example, the user terminal sends the CSI corresponding to the two TRPs to the network side. The priority of any even subband CSI in the CSI report corresponding to TRP1 is higher than the priority of any odd subband CSI in TRP1 and TRP2.
在具体实施中,可能会出现两个TRP对应的CSI相同的场景。若第一TRP对应的CSI报告与第二TRP对应的CSI报告相同,且任一份CSI报告中包括CRI、RI、PMI、CQI中的任一种,则意味着在进行第一TRP的CSI计算时,并没有将第二TRP对应的测量计算结果作为第一TRP的TRP间的干扰信息。即,干扰信息包括多个TRP中除所述第二TRP之外的TRP的测量计算结果。In a specific implementation, a scenario where the CSI corresponding to two TRPs is the same may occur. If the CSI report corresponding to the first TRP is the same as the CSI report corresponding to the second TRP, and any CSI report includes any one of CRI, RI, PMI, and CQI, it means that the CSI calculation of the first TRP is being performed. , the measurement calculation result corresponding to the second TRP is not used as the interference information between the TRPs of the first TRP. That is, the interference information includes measurement and calculation results of TRPs other than the second TRP among the multiple TRPs.
例如,用户终端上报2个TRP对应的CSI报告,其中一份CSI报告包括CRI、RI、以及CQI,且2个TRP对应的CSI报告相同,此时,可以判定在进行TRP1对应的CSI计算时,没有将TRP2对应的测量计算结果作为TRP1的TRP间干扰。For example, the user terminal reports CSI reports corresponding to two TRPs, one of which includes CRI, RI, and CQI, and the CSI reports corresponding to the two TRPs are the same. At this time, it can be determined that when calculating the CSI corresponding to TRP1, The measurement calculation result corresponding to TRP2 is not regarded as the inter-TRP interference of TRP1.
在具体实施中,用户终端在向网络侧上报CSI报告时,还可以在CSI报告中增加用于指示CSI有效性的信息。在本申请实施例中,用户终端可以在CSI报告中增加1比特或者2比特,用于指示CSI的有效性。在CSI报告中增加的比特个数可以与所使用的TRP的个数相等。In a specific implementation, when reporting the CSI report to the network side, the user terminal may also add information for indicating the validity of the CSI to the CSI report. In this embodiment of the present application, the user terminal may add 1 bit or 2 bits to the CSI report to indicate the validity of the CSI. The number of bits added in the CSI report may be equal to the number of TRPs used.
当一份CSI报告中只承载一个TRP对应的CSI时,用户终端可以在CSI报告 中增加1比特的有效性信息,用于指示当前TRP对应的CSI的有效性。When only CSI corresponding to one TRP is carried in one CSI report, the user terminal may add 1-bit validity information to the CSI report to indicate the validity of the CSI corresponding to the current TRP.
例如,当CSI报告中新增加的1比特的取值为1时,指示该TRP对应的CSI有效;反之,当CSI报告中新增加的1比特的取值为0时,指示该TRP对应的CSI无效。For example, when the value of the newly added 1 bit in the CSI report is 1, it indicates that the CSI corresponding to the TRP is valid; on the contrary, when the value of the newly added 1 bit in the CSI report is 0, it indicates that the CSI corresponding to the TRP is valid. invalid.
当一份CSI报告中承载两个TRP对应的CSI时,用户终端可以在CSI报告中增加2比特,用于指示TRP1对应的CSI的有效性以及TRP2对应的CSI的有效性。When one CSI report carries CSI corresponding to two TRPs, the user terminal may add 2 bits to the CSI report to indicate the validity of the CSI corresponding to TRP1 and the validity of the CSI corresponding to TRP2.
例如,当CSI报告中新增加的2比特的取值为01时,指示TRP1对应的CSI无效,TRP2对应的CSI有效。For example, when the value of the newly added 2 bits in the CSI report is 01, it indicates that the CSI corresponding to TRP1 is invalid and the CSI corresponding to TRP2 is valid.
当一份CSI报告中RI大于4时,可认为此CSI报告无效。When the RI in a CSI report is greater than 4, the CSI report may be considered invalid.
例如,用户终端上报2份CSI报告,且TRP2对应的CSI报告中的RI取值大于4。因此,可以判定TRP2对应的CSI无意义。在计算TRP1对应的CSI时,无需将TRP2对应的测量计算结果作为TRP间干扰。因此,用户终端在向网络侧发送每一个TRP对应的CSI时,向网络侧发送CSI有效性的信息,以表征TRP2对应的CSI无效、TRP1时对应的CSI有效。For example, the user terminal reports two CSI reports, and the value of RI in the CSI report corresponding to TRP2 is greater than 4. Therefore, it can be determined that the CSI corresponding to TRP2 is meaningless. When calculating the CSI corresponding to TRP1, it is not necessary to use the measurement and calculation result corresponding to TRP2 as inter-TRP interference. Therefore, when sending the CSI corresponding to each TRP to the network side, the user terminal sends CSI validity information to the network side to indicate that the CSI corresponding to TRP2 is invalid and the corresponding CSI when TRP1 is valid.
当该CSI报告无效时,可以采用如下方法计算TRP对应的CSI信息:When the CSI report is invalid, the following method can be used to calculate the CSI information corresponding to the TRP:
当检测到所述多个TRP中的第二TRP对应的CSI的RI大于4时,获取第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,所述干扰信息包括所述多个TRP中除所述第二TRP之外的TRP的测量计算结果,其中,所述第一TRP为所述多个TRP中的任一个。When it is detected that the RI corresponding to the CSI corresponding to the second TRP in the multiple TRPs is greater than 4, the interference information corresponding to the first TRP is obtained, and the CSI corresponding to the first TRP is calculated according to the interference information, until the calculated The CSI corresponding to each TRP, and the interference information includes measurement and calculation results of TRPs in the multiple TRPs except the second TRP, where the first TRP is any one of the multiple TRPs. one.
在实际应用中,用户终端也可以无需向网络侧发送CSI有效性的信息。网络侧在获知到一份CSI报告中RI大于4时,即可获知该CSI报告无效。In practical applications, the user terminal may also not need to send CSI validity information to the network side. When the network side learns that the RI in a CSI report is greater than 4, it can know that the CSI report is invalid.
用户终端将每一个CSI对应的有效性指示信息上报至网络侧,使得网络侧可以获知哪一个TRP对应的CSI是有效的,哪一个TRP对应的CSI是无效的,从而可以进行相应的传输方案的调整,以提升通信***性能。The user terminal reports the validity indication information corresponding to each CSI to the network side, so that the network side can know which TRP corresponding to the CSI is valid and which TRP corresponding CSI is invalid, so that the corresponding transmission scheme can be adjusted. Adjustments to improve communication system performance.
在具体实施中,若网络侧下发的网络配置信息为基于下行控制信息指示的信息,且不同TRP对应不同的下行控制信息,则不同下行控制信息中的CSI请求(request)的取值相同。In a specific implementation, if the network configuration information delivered by the network side is based on the information indicated by the downlink control information, and different TRPs correspond to different downlink control information, the values of CSI requests (requests) in different downlink control information are the same.
在具体实施中,当检测到第二TRP对应的CSI对应的有效性指示信息指示为无效时,则可以判定在计算所述第一TRP对应的CSI时,没有将所述第二TRP对应的测量计算结果作为所述第一TRP的TRP间干扰。In a specific implementation, when it is detected that the validity indication information corresponding to the CSI corresponding to the second TRP is invalid, it can be determined that the measurement corresponding to the second TRP is not calculated when the CSI corresponding to the first TRP is calculated. The calculation result is taken as the inter-TRP interference of the first TRP.
参照图2,本申请实施例还提供了一种用户终端20,包括:接收单元201、确定单元202以及计算单元203,其中:Referring to FIG. 2, an embodiment of the present application further provides a user terminal 20, including: a receiving unit 201, a determining unit 202, and a computing unit 203, wherein:
接收单元201,用于接收网络侧下发的网络配置信息;A receiving unit 201, configured to receive network configuration information delivered by the network side;
确定单元202,用于根据所述网络配置信息,确定CSI计算行为;a determining unit 202, configured to determine the CSI calculation behavior according to the network configuration information;
计算单元203,用于当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。The calculation unit 203 is configured to calculate the CSI corresponding to each TRP in the multiple transmission and reception point TRPs when the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, and the multiple TRPs correspond to one codeword.
在一个可能的实现方式中,所述确定单元202,用于根据所述网络配置信息,采用如下任一种方式确定CSI计算行为:根据所述网络配置信息,获取CSI报告配置信息;根据所述CSI报告配置信息,确定CSI计算行为;或,根据所述网络配置信息,获取用于信道测量的CSI资源配置信息;根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为;或,根据所述网络配置信息,获取用于指示CSI计算行为的指示信息;根据所述用于指示CSI计算行为的指示信息,确定CSI计算行为。In a possible implementation manner, the determining unit 202 is configured to determine the CSI calculation behavior according to the network configuration information in any of the following manners: obtain CSI report configuration information according to the network configuration information; CSI reporting configuration information to determine CSI calculation behavior; or, according to the network configuration information, to obtain CSI resource configuration information for channel measurement; according to the CSI resource configuration information for channel measurement, to determine CSI calculation behavior; or, According to the network configuration information, the indication information used to indicate the CSI calculation behavior is acquired; and the CSI calculation behavior is determined according to the indication information used to indicate the CSI calculation behavior.
在一个可能的实现方式中,所述确定单元202,用于根据所述网络配置信息,采用如下任一种方式获取CSI报告配置信息:从所述网络配置信息中,获取所述CSI报告配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所CSI非周期触发状态所关联的CSI报告配置信息,确定为所述CSI报告配置信息。In a possible implementation manner, the determining unit 202 is configured to obtain the CSI report configuration information according to the network configuration information in any of the following manners: obtain the CSI report configuration information from the network configuration information Or, obtain the information indicated by the downlink control information from the network configuration information, and the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; CSI report configuration information, which is determined to be the CSI report configuration information.
在一个可能的实现方式中,所述确定单元202,用于从所述CSI报告配置信息中,获取秩信息,所述秩信息用于指示CSI报告包含的秩数目,或所述秩信息用于指示CSI报告包含的最大秩数目;当所述秩信息指示CSI报告包含的秩数目为2,或指示CSI报告包含的最大秩数目为2时,确定CSI计算行为是基于非相干联合传输进行CSI计算。In a possible implementation, the determining unit 202 is configured to obtain rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the rank information is used to Indicates the maximum number of ranks included in the CSI report; when the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is CSI calculation based on non-coherent joint transmission .
在一个可能的实现方式中,所述计算单元203,用于当资源集合包括多个NZP CSI-RS资源时,所述多个NZP CSI-RS资源与所述多个TRP对应;将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每个TRP对应的CSI;当所述资源集合包括一个NZP CSI-RS资源,且所述NZP CSI-RS资源包括QCL信息不同的端口组时,将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI;其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。In a possible implementation manner, the calculating unit 203 is configured to, when the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs; correspond to other TRPs The measurement and calculation result of the NZP CSI-RS resource is used as the interference information corresponding to the first TRP, and the CSI corresponding to the first TRP is calculated according to the interference information corresponding to the first TRP, until each TRP is calculated. Corresponding CSI; when the resource set includes one NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement and calculation results of the port groups corresponding to other TRPs are used as the first interference information corresponding to the TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP until the CSI corresponding to each TRP is calculated; wherein the first TRP is the multiple Any one of the plurality of TRPs, and the other TRPs are TRPs other than the first TRP among the plurality of TRPs.
在一个可能的实现方式中,所述确定单元202,用于根据所述网络配置信息,采用如下任一种方式获取用于信道测量的CSI资源配置信息:从所述网络配置信息中,获取所述用于信道测量的CSI资源配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息,确定为所述用于信道测量的CSI资源配置信息。In a possible implementation manner, the determining unit 202 is configured to obtain, according to the network configuration information, the CSI resource configuration information used for channel measurement in any of the following manners: from the network configuration information, obtain all the CSI resource configuration information used for channel measurement; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; The CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state is determined as the CSI resource configuration information for channel measurement.
在一个可能的实现方式中,所述确定单元202,用于当所述用于信道测量的CSI资源配置信息中的一个资源集合包括至少两个NZP CSI-RS资源时,确定CSI计算行为是基于非相干联合传输进行CSI计算。In a possible implementation manner, the determining unit 202 is configured to, when a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources, determine whether the CSI calculation behavior is based on Incoherent joint transmission for CSI calculation.
在一个可能的实现方式中,所述计算单元203,用于将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。In a possible implementation manner, the calculation unit 203 is configured to use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, The interference information calculates the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are the multiple TRPs. TRPs other than the first TRP among the TRPs.
在一个可能的实现方式中,所述确定单元202,用于当所述用于信道测量的CSI资源配置信息中的一个NZP CSI-RS资源存在至少两个端口组,且不同端口组对应的QCL信息不同时,确定CSI计算行为是基于非相干联合传输进行 CSI计算。In a possible implementation, the determining unit 202 is configured to, when there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and QCLs corresponding to different port groups When the information is different, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
在一个可能的实现方式中,所述计算单元203,用于将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。In a possible implementation manner, the calculation unit 203 is configured to use the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and calculate according to the interference information corresponding to the first TRP CSI corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are among the multiple TRPs TRPs other than the first TRP.
在一个可能的实现方式中,所述确定单元202,用于从所述网络配置信息中,获取下行控制信息所指示的信息;根据所述下行控制信息所指示的信息,获取CSI非周期触发状态包含的用于指示CSI计算行为的指示信息。In a possible implementation manner, the determining unit 202 is configured to acquire the information indicated by the downlink control information from the network configuration information; acquire the CSI aperiodic trigger state according to the information indicated by the downlink control information Contains the indication information used to indicate the CSI calculation behavior.
在一个可能的实现方式中,所述用于指示CSI计算行为的指示信息为秩联合信息,所述秩联合信息为上报的不同值取值满足候选RI对。In a possible implementation manner, the indication information for indicating the CSI calculation behavior is rank joint information, and the rank joint information is that the reported different values satisfy the candidate RI pairs.
结合第二方面,在一个可能的实现方式中,所述计算单元203,用于将同一个CSI非周期触发状态中,其他TRP对应的测量计算结果,作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP,所述其他TRP对应的测量计算结果为:其他TRP相关的配置信息中,用于信道测量的资源集合中的NZP CSI-RS资源的测量计算结果。With reference to the second aspect, in a possible implementation manner, the calculation unit 203 is configured to use the measurement calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs , the other TRPs are TRPs other than the first TRP among the multiple TRPs, and the measurement calculation results corresponding to the other TRPs are: in the configuration information related to the other TRPs, in the resource set used for channel measurement Measurement and calculation results of NZP CSI-RS resources.
在一个可能的实现方式中,其特征在于,当所述网络配置信息包括多个下行控制信息所指示的信息时,每一个下行控制信息中的CSI请求对应的取值相等。In a possible implementation manner, when the network configuration information includes information indicated by a plurality of downlink control information, the values corresponding to the CSI requests in each downlink control information are equal.
在一个可能的实现方式中,还包括:上报单元,用于将所述每个TRP对应的CSI上报至网络侧。In a possible implementation manner, the method further includes: a reporting unit, configured to report the CSI corresponding to each TRP to the network side.
在一个可能的实现方式中,所述上报单元,用于将所述每个TRP对应的CSI以及每一个CSI对应的有效性指示信息上报至所述网络侧。In a possible implementation manner, the reporting unit is configured to report the CSI corresponding to each TRP and the validity indication information corresponding to each CSI to the network side.
在一个可能的实现方式中,所述有效性指示信息的长度为1比特或2比特。In a possible implementation manner, the length of the validity indication information is 1 bit or 2 bits.
在一个可能的实现方式中,所述上报单元,用于采用如下任一种方式将所述每个TRP对应的CSI上报至所述网络侧:In a possible implementation manner, the reporting unit is configured to report the CSI corresponding to each TRP to the network side in any of the following manners:
向所述网络侧上报一条CSI报告,且所述一条CSI报告中承载所述每一个TRP对应的CSI;reporting a CSI report to the network side, and the CSI report corresponding to each TRP is carried in the CSI report;
向所述网络侧上报多条CSI报告,且每一条CSI报告承载一个TRP对应的CSI。Multiple CSI reports are reported to the network side, and each CSI report carries CSI corresponding to one TRP.
在一个可能的实现方式中,当每一条CSI报告承载一个TRP对应的CSI时,每一个TRP对应的CSI报告的优先级均相同,且每一个TRP对应的CSI报告中任一偶数子带CSI的优先级均高于所有TRP对应的CSI报告中任一奇数子带CSI的优先级In a possible implementation, when each CSI report carries CSI corresponding to one TRP, the CSI reports corresponding to each TRP have the same priority, and any even subband CSI in the CSI report corresponding to each TRP has the same priority. The priority is higher than the priority of any odd subband CSI in the CSI reports corresponding to all TRPs
本申请实施例还提供了一种计算机可读存储介质,其上存储有计算机指令,所述计算机指令运行时执行本申请上述任一实施例中提供的CSI计算方法的步骤。The embodiments of the present application further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are run, the steps of the CSI calculation method provided in any of the foregoing embodiments of the present application are executed.
本申请实施例还提供了另一种用户终端,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机指令,所述处理器运行所述计算机指令时可方法中的全部或部分步骤是可以通过程序来指示相关的硬件来完成,该程序以执行本申请上述任一实施例中提供的CSI计算方法的步骤。An embodiment of the present application further provides another user terminal, including a memory and a processor, where the memory stores computer instructions that can be run on the processor, and when the processor runs the computer instructions, it can be executed in a method. All or part of the steps can be completed by instructing the relevant hardware through a program, and the program is to execute the steps of the CSI calculation method provided in any of the above-mentioned embodiments of the present application.
本领域普通技术人员可以理解上述实施例的各种可以存储于一计算机可读存储介质中,存储介质可以包括:ROM、RAM、磁盘或光盘等。Those of ordinary skill in the art can understand that various kinds of the above-mentioned embodiments may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic disk or optical disk, and so on.
虽然本申请披露如上,但本申请并非限定于此。任何本领域技术人员,在不脱离本申请的精神和范围内,均可作各种更动与修改,因此本申请的保护范围应当以权利要求所限定的范围为准。Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be based on the scope defined by the claims.
Claims (45)
- 一种CSI计算方法,其特征在于,包括:A CSI calculation method, comprising:接收网络侧下发的网络配置信息;Receive the network configuration information delivered by the network side;根据所述网络配置信息,确定CSI计算行为;determining the CSI calculation behavior according to the network configuration information;当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。When the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission, the CSI corresponding to each TRP in the multiple transmission and reception point TRPs is calculated, and the multiple TRPs correspond to one codeword.
- 如权利要求1所述的CSI计算方法,其特征在于,所述根据所述网络配置信息,确定CSI计算行为,包括:The CSI calculation method according to claim 1, wherein determining the CSI calculation behavior according to the network configuration information comprises:根据所述网络配置信息,获取CSI报告配置信息;根据所述CSI报告配置信息,确定CSI计算行为;Acquire CSI report configuration information according to the network configuration information; determine CSI calculation behavior according to the CSI report configuration information;或,根据所述网络配置信息,获取用于信道测量的CSI资源配置信息;根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为;Or, obtain CSI resource configuration information for channel measurement according to the network configuration information; determine a CSI calculation behavior according to the CSI resource configuration information for channel measurement;或,根据所述网络配置信息,获取用于指示CSI计算行为的指示信息;根据所述用于指示CSI计算行为的指示信息,确定CSI计算行为。Or, according to the network configuration information, obtain indication information for indicating the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information for indicating the CSI calculation behavior.
- 如权利要求2所述的CSI计算方法,其特征在于,所述根据所述网络配置信息,获取CSI报告配置信息,包括以下任一种:The CSI calculation method according to claim 2, wherein the acquiring CSI report configuration information according to the network configuration information includes any of the following:从所述网络配置信息中,获取所述CSI报告配置信息;obtaining the CSI report configuration information from the network configuration information;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所CSI非周期触发状态所关联的CSI报告配置信息,确定为所述CSI报告配置信息。Or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; Report configuration information, and determine to report configuration information for the CSI.
- 如权利要求3所述的CSI计算方法,其特征在于,所述根据所述CSI报告配置信息,确定CSI计算行为,包括:The CSI calculation method according to claim 3, wherein determining the CSI calculation behavior according to the CSI report configuration information comprises:从所述CSI报告配置信息中,获取秩信息,所述秩信息用于指示CSI报告包含的秩数目,或所述秩信息用于指示CSI报告包含的最大秩数目;obtaining rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the rank information is used to indicate the maximum number of ranks included in the CSI report;当所述秩信息指示CSI报告包含的秩数目为2,或指示CSI报告包含的最大秩数目为2时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- 如权利要求4所述的CSI计算方法,其特征在于,所述计算多个发送 接收点TRP中的每个TRP对应的CSI,包括:CSI calculation method as claimed in claim 4, is characterized in that, described calculating the CSI corresponding to each TRP in the multiple sending and receiving point TRP, comprises:当资源集合包括多个NZP CSI-RS资源时,所述多个NZP CSI-RS资源与所述多个TRP对应;When the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs;将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每个TRP对应的CSI;Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated Describe the CSI corresponding to each TRP;当所述资源集合包括一个NZP CSI-RS资源,且所述NZP CSI-RS资源包括QCL信息不同的端口组时,将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI;When the resource set includes one NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement and calculation results of the port groups corresponding to other TRPs are used as the interference corresponding to the first TRP information, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated;其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。The first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- 如权利要求2所述的CSI计算方法,其特征在于,所述根据所述网络配置信息,获取用于信道测量的CSI资源配置信息,包括:The CSI calculation method according to claim 2, wherein the acquiring CSI resource configuration information for channel measurement according to the network configuration information comprises:从所述网络配置信息中,获取所述用于信道测量的CSI资源配置信息;obtaining the CSI resource configuration information for channel measurement from the network configuration information;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息,确定为所述用于信道测量的CSI资源配置信息。Or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; associate the selected CSI aperiodic trigger state with The CSI resource configuration information used for channel measurement is determined as the CSI resource configuration information used for channel measurement.
- 如权利要求6所述的CSI计算方法,其特征在于,所述根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为,包括:The CSI calculation method according to claim 6, wherein determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement comprises:当所述用于信道测量的CSI资源配置信息中的一个资源集合包括至少两个NZP CSI-RS资源时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- 如权利要求7所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The CSI calculation method according to claim 7, wherein the calculating the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs comprises:将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对 应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。Taking the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the calculated The CSI corresponding to each TRP, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- 如权利要求6所述的CSI计算方法,其特征在于,所述根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为,包括:The CSI calculation method according to claim 6, wherein determining the CSI calculation behavior according to the CSI resource configuration information used for channel measurement comprises:当所述用于信道测量的CSI资源配置信息中的一个NZP CSI-RS资源存在至少两个端口组,且不同端口组对应的QCL信息不同时,确定CSI计算行为是基于非相干联合传输进行CSI计算。When there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and the QCL information corresponding to different port groups is different, it is determined that the CSI calculation behavior is to perform CSI based on non-coherent joint transmission calculate.
- 如权利要求9所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The CSI calculation method according to claim 9, wherein the calculating the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs comprises:将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。Taking the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until each of the CSI corresponding to a TRP, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- 如权利要求2所述的CSI计算方法,其特征在于,所述根据所述网络配置信息,获取用于指示CSI计算行为的指示信息,包括:The CSI calculation method according to claim 2, wherein the obtaining, according to the network configuration information, the indication information for indicating the CSI calculation behavior comprises:从所述网络配置信息中,获取下行控制信息所指示的信息;From the network configuration information, obtain the information indicated by the downlink control information;根据所述下行控制信息所指示的信息,获取CSI非周期触发状态包含的用于指示CSI计算行为的指示信息。According to the information indicated by the downlink control information, the indication information included in the CSI aperiodic trigger state and used to indicate the CSI calculation behavior is acquired.
- 如权利要求11所述的CSI计算方法,其特征在于,所述用于指示CSI计算行为的指示信息为秩联合信息,所述秩联合信息为上报的不同值取值满足候选RI对。The CSI calculation method according to claim 11, wherein the indication information for indicating the CSI calculation behavior is rank joint information, and the rank joint information is that the reported different values satisfy the candidate RI pairs.
- 如权利要求11所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The method for calculating CSI according to claim 11, wherein the calculating the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs comprises:将同一个CSI非周期触发状态中,其他TRP对应的测量计算结果,作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中 除所述第一TRP外的TRP,所述其他TRP对应的测量计算结果为:其他TRP相关的配置信息中,用于信道测量的资源集合中的NZP CSI-RS资源的测量计算结果。Taking the measurement and calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, Until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs , the measurement calculation result corresponding to the other TRP is: in the configuration information related to the other TRP, the measurement calculation result of the NZP CSI-RS resource in the resource set used for channel measurement.
- 如权利要求3-11任一项所述的CSI计算方法,其特征在于,当所述网络配置信息包括多个下行控制信息所指示的信息时,每一个下行控制信息中的CSI请求对应的取值相等。The CSI calculation method according to any one of claims 3-11, wherein when the network configuration information includes information indicated by a plurality of downlink control information, the corresponding CSI request in each downlink control information value is equal.
- 如权利要求1所述的CSI计算方法,其特征在于,在所述计算多个发送接收点TRP中的每个TRP对应的CSI之后,还包括:The CSI calculation method according to claim 1, wherein after calculating the CSI corresponding to each TRP in the multiple transmission and reception point TRPs, the method further comprises:将所述每个TRP对应的CSI上报至网络侧。The CSI corresponding to each TRP is reported to the network side.
- 如权利要求15所述的CSI计算方法,其特征在于,所述将所述每个TRP对应的CSI上报至网络侧,包括:The CSI calculation method according to claim 15, wherein the reporting the CSI corresponding to each TRP to the network side comprises:将所述每个TRP对应的CSI以及每一个CSI对应的有效性指示信息上报至所述网络侧。The CSI corresponding to each TRP and the validity indication information corresponding to each CSI are reported to the network side.
- 如权利要求16所述的CSI计算方法,其特征在于,所述有效性指示信息的长度为1比特或2比特。The CSI calculation method according to claim 16, wherein the length of the validity indication information is 1 bit or 2 bits.
- 如权利要求15或16所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The CSI calculation method according to claim 15 or 16, wherein the calculating the CSI corresponding to each TRP in the multiple transmission and reception point TRPs comprises:当检测到所述多个TRP中的第二TRP对应的CSI对应的有效性指示信息指示为无效时,获取所述第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述干扰信息包括:所述多个TRP中除所述第二TRP以外的TRP对应的测量结果,其中,所述第一TRP为所述多个TRP中的任一个。When it is detected that the validity indication information corresponding to the CSI corresponding to the second TRP in the plurality of TRPs is invalid, obtain the interference information corresponding to the first TRP, and calculate the corresponding information of the first TRP according to the interference information until the CSI corresponding to each TRP is calculated, wherein the interference information includes: measurement results corresponding to TRPs other than the second TRP among the multiple TRPs, wherein the first TRP is any one of the multiple TRPs.
- 如权利要求15所述的CSI计算方法,其特征在于,采用如下任一种方式将所述每个TRP对应的CSI上报至所述网络侧:The CSI calculation method according to claim 15, wherein the CSI corresponding to each TRP is reported to the network side in any of the following ways:向所述网络侧上报一条CSI报告,且所述一条CSI报告中承载所述每一个TRP对应的CSI;reporting a CSI report to the network side, and the CSI report corresponding to each TRP is carried in the CSI report;向所述网络侧上报多条CSI报告,且每一条CSI报告承载一个TRP对应的CSI。Multiple CSI reports are reported to the network side, and each CSI report carries CSI corresponding to one TRP.
- 如权利要求19所述的CSI计算方法,其特征在于,当每一条CSI报告承载一个TRP对应的CSI时,每一个TRP对应的CSI报告的优先级均相同,且每一个TRP对应的CSI报告中任一偶数子带CSI的优先级均高于所有TRP对应的CSI报告中任一奇数子带CSI的优先级。The CSI calculation method according to claim 19, wherein when each CSI report carries CSI corresponding to one TRP, the priority of the CSI report corresponding to each TRP is the same, and the CSI report corresponding to each TRP has the same priority. The priority of any even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
- 如权利要求1所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The CSI calculation method according to claim 1, wherein the calculating the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs comprises:当第一TRP对应的CSI与所述多个TRP中的第二TRP对应的CSI相同,且所述第一TRP对应的CSI包括CRI、RI、PMI以及CQI中的至少一种时,获取第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,所述干扰信息包括所述多个TRP中除所述第二TRP之外的TRP的测量计算结果,其中,所述第一TRP为所述多个TRP中的任一个。When the CSI corresponding to the first TRP is the same as the CSI corresponding to the second TRP among the multiple TRPs, and the CSI corresponding to the first TRP includes at least one of CRI, RI, PMI, and CQI, obtain the first TRP The interference information corresponding to the TRP, the CSI corresponding to the first TRP is calculated according to the interference information until the CSI corresponding to each TRP is calculated, and the interference information includes dividing the second TRP among the multiple TRPs A measurement and calculation result of a TRP other than , wherein the first TRP is any one of the multiple TRPs.
- 如权利要求1所述的CSI计算方法,其特征在于,所述计算多个发送接收点TRP中的每个TRP对应的CSI,包括:The CSI calculation method according to claim 1, wherein the calculating the CSI corresponding to each TRP in the multiple transmitting and receiving point TRPs comprises:当检测到所述多个TRP中的第二TRP对应的CSI的RI大于4时,获取第一TRP对应的干扰信息,根据所述干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,所述干扰信息包括所述多个TRP中除所述第二TRP之外的TRP的测量计算结果,其中,所述第一TRP为所述多个TRP中的任一个。When it is detected that the RI corresponding to the CSI corresponding to the second TRP in the multiple TRPs is greater than 4, the interference information corresponding to the first TRP is obtained, and the CSI corresponding to the first TRP is calculated according to the interference information, until the calculated The CSI corresponding to each TRP, and the interference information includes measurement and calculation results of TRPs in the multiple TRPs except the second TRP, where the first TRP is any one of the multiple TRPs. one.
- 一种用户终端,其特征在于,包括:A user terminal, comprising:接收单元,用于接收网络侧下发的网络配置信息;a receiving unit, configured to receive the network configuration information delivered by the network side;确定单元,用于根据所述网络配置信息,确定CSI计算行为;a determining unit, configured to determine the CSI calculation behavior according to the network configuration information;计算单元,用于当所述CSI计算行为是基于非相干联合传输进行CSI计算时,计算多个发送接收点TRP中的每个TRP对应的CSI,所述多个TRP与一个码字对应。A calculation unit, configured to calculate CSI corresponding to each TRP in the multiple transmission and reception point TRPs when the CSI calculation behavior is based on non-coherent joint transmission for CSI calculation, and the multiple TRPs correspond to one codeword.
- 如权利要求23所述的用户终端,其特征在于,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式确定CSI计算行为:根据所述网络配置信息,获取CSI报告配置信息;根据所述CSI报告配置信息,确定 CSI计算行为;或,根据所述网络配置信息,获取用于信道测量的CSI资源配置信息;根据所述用于信道测量的CSI资源配置信息,确定CSI计算行为;或,根据所述网络配置信息,获取用于指示CSI计算行为的指示信息;根据所述用于指示CSI计算行为的指示信息,确定CSI计算行为。The user terminal according to claim 23, wherein the determining unit is configured to determine the CSI calculation behavior according to the network configuration information by adopting any one of the following methods: obtaining a CSI report configuration according to the network configuration information information; determine CSI calculation behavior according to the CSI report configuration information; or, obtain CSI resource configuration information for channel measurement according to the network configuration information; determine CSI according to the CSI resource configuration information for channel measurement calculation behavior; or, according to the network configuration information, obtain indication information used to indicate the CSI calculation behavior; and determine the CSI calculation behavior according to the indication information used to indicate the CSI calculation behavior.
- 如权利要求24所述的用户终端,其特征在于,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式获取CSI报告配置信息:从所述网络配置信息中,获取所述CSI报告配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所CSI非周期触发状态所关联的CSI报告配置信息,确定为所述CSI报告配置信息。The user terminal according to claim 24, wherein the determining unit is configured to obtain the CSI report configuration information according to the network configuration information in any one of the following ways: from the network configuration information, obtain all the The CSI report configuration information; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI aperiodic trigger state selected by the CSI request trigger; The CSI report configuration information associated with the trigger state is determined to be the CSI report configuration information.
- 如权利要求25所述的用户终端,其特征在于,所述确定单元,用于从所述CSI报告配置信息中,获取秩信息,所述秩信息用于指示CSI报告包含的秩数目,或所述秩信息用于指示CSI报告包含的最大秩数目;当所述秩信息指示CSI报告包含的秩数目为2,或指示CSI报告包含的最大秩数目为2时,确定CSI计算行为是基于非相干联合传输进行CSI计算。The user terminal according to claim 25, wherein the determining unit is configured to obtain rank information from the CSI report configuration information, where the rank information is used to indicate the number of ranks included in the CSI report, or the The rank information is used to indicate the maximum number of ranks included in the CSI report; when the rank information indicates that the number of ranks included in the CSI report is 2, or indicates that the maximum number of ranks included in the CSI report is 2, it is determined that the CSI calculation behavior is based on incoherence Joint transmission for CSI calculation.
- 如权利要求26所述的用户终端,其特征在于,所述计算单元,用于当资源集合包括多个NZP CSI-RS资源时,所述多个NZP CSI-RS资源与所述多个TRP对应;将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每个TRP对应的CSI;当所述资源集合包括一个NZP CSI-RS资源,且所述NZP CSI-RS资源包括QCL信息不同的端口组时,将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI;其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。The user terminal according to claim 26, wherein the calculation unit is configured to, when the resource set includes multiple NZP CSI-RS resources, the multiple NZP CSI-RS resources correspond to the multiple TRPs Taking the measurement and calculation result of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculating the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until calculating CSI corresponding to each TRP; when the resource set includes one NZP CSI-RS resource, and the NZP CSI-RS resource includes port groups with different QCL information, the measurement calculation results of the port groups corresponding to other TRPs are calculated As the interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated; wherein, the first TRP The TRP is any one of the multiple TRPs, and the other TRPs are TRPs other than the first TRP among the multiple TRPs.
- 如权利要求24所述的用户终端,其特征在于,所述确定单元,用于根据所述网络配置信息,采用如下任一种方式获取用于信道测量的CSI资源 配置信息:从所述网络配置信息中,获取所述用于信道测量的CSI资源配置信息;或,从所述网络配置信息中获取下行控制信息所指示的信息,所述下行控制信息所指示的信息包括CSI请求触发选择的CSI非周期触发状态;将所选择的CSI非周期触发状态所关联的用于信道测量的CSI资源配置信息,确定为所述用于信道测量的CSI资源配置信息。The user terminal according to claim 24, wherein the determining unit is configured to obtain, according to the network configuration information, the CSI resource configuration information for channel measurement in any one of the following ways: from the network configuration In the information, obtain the CSI resource configuration information used for channel measurement; or, obtain the information indicated by the downlink control information from the network configuration information, where the information indicated by the downlink control information includes the CSI that is selected by the CSI request trigger Aperiodic trigger state; determine the CSI resource configuration information for channel measurement associated with the selected CSI aperiodic trigger state as the CSI resource configuration information for channel measurement.
- 如权利要求28所述的用户终端,其特征在于,所述确定单元,用于当所述用于信道测量的CSI资源配置信息中的一个资源集合包括至少两个NZP CSI-RS资源时,确定CSI计算行为是基于非相干联合传输进行CSI计算。The user terminal according to claim 28, wherein the determining unit is configured to determine when a resource set in the CSI resource configuration information for channel measurement includes at least two NZP CSI-RS resources The CSI calculation behavior is based on non-coherent joint transmission for CSI calculation.
- 如权利要求29所述的用户终端,其特征在于,所述计算单元,用于将其他TRP对应的NZP CSI-RS资源的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。The user terminal according to claim 29, wherein the calculation unit is configured to use the measurement and calculation results of the NZP CSI-RS resources corresponding to other TRPs as the interference information corresponding to the first TRP, and calculate according to the The interference information corresponding to the first TRP calculates the CSI corresponding to the first TRP until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other A TRP is a TRP other than the first TRP among the plurality of TRPs.
- 如权利要求28所述的用户终端,其特征在于,所述确定单元,用于当所述用于信道测量的CSI资源配置信息中的一个NZP CSI-RS资源存在至少两个端口组,且不同端口组对应的QCL信息不同时,确定CSI计算行为是基于非相干联合传输进行CSI计算。The user terminal according to claim 28, wherein the determining unit is configured to, when there are at least two port groups in one NZP CSI-RS resource in the CSI resource configuration information for channel measurement, and they are different When the QCL information corresponding to the port group is different, it is determined that the CSI calculation behavior is to perform CSI calculation based on non-coherent joint transmission.
- 如权利要求31所述的用户终端,其特征在于,所述计算单元,用于将其他TRP对应的端口组的测量计算结果作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP。The user terminal according to claim 31, wherein the calculation unit is configured to use the measurement and calculation results of the port groups corresponding to other TRPs as the interference information corresponding to the first TRP, and calculate according to the first TRP. The corresponding interference information calculates the CSI corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs, and the other TRPs are all TRPs other than the first TRP among the plurality of TRPs.
- 如权利要求24所述的用户终端,其特征在于,所述确定单元,用于从所述网络配置信息中,获取下行控制信息所指示的信息;根据所述下行控制信息所指示的信息,获取CSI非周期触发状态包含的用于指示CSI计算行为的指示信息。The user terminal according to claim 24, wherein the determining unit is configured to obtain the information indicated by the downlink control information from the network configuration information; and obtain the information indicated by the downlink control information according to the information indicated by the downlink control information. The indication information that is included in the CSI aperiodic trigger state and is used to indicate the CSI calculation behavior.
- 如权利要求33所述的用户终端,其特征在于,所述用于指示CSI计 算行为的指示信息为秩联合信息,所述秩联合信息为上报的不同值取值满足候选RI对。The user terminal according to claim 33, wherein the indication information for indicating the CSI calculation behavior is rank joint information, and the rank joint information is that the reported different values satisfy the candidate RI pairs.
- 如权利要求33所述的用户终端,其特征在于,所述计算单元,用于将同一个CSI非周期触发状态中,其他TRP对应的测量计算结果,作为所述第一TRP对应的干扰信息,并根据所述第一TRP对应的干扰信息计算所述第一TRP对应的CSI,直至计算出所述每一个TRP对应的CSI,其中,所述第一TRP为所述多个TRP中的任一个,所述其它TRP为所述多个TRP中除所述第一TRP外的TRP,所述其他TRP对应的测量计算结果为:其他TRP相关的配置信息中,用于信道测量的资源集合中的NZP CSI-RS资源的测量计算结果。The user terminal according to claim 33, wherein the calculation unit is configured to use the measurement calculation results corresponding to other TRPs in the same CSI aperiodic trigger state as the interference information corresponding to the first TRP, and calculate the CSI corresponding to the first TRP according to the interference information corresponding to the first TRP, until the CSI corresponding to each TRP is calculated, wherein the first TRP is any one of the multiple TRPs , the other TRPs are TRPs other than the first TRP among the multiple TRPs, and the measurement calculation results corresponding to the other TRPs are: in the configuration information related to the other TRPs, in the resource set used for channel measurement Measurement and calculation results of NZP CSI-RS resources.
- 如权利要求25、28、33任一项所述的用户终端,其特征在于,当所述网络配置信息包括多个下行控制信息所指示的信息时,每一个下行控制信息中的CSI请求对应的取值相等。The user terminal according to any one of claims 25, 28, and 33, wherein when the network configuration information includes information indicated by a plurality of downlink control information, the CSI request in each downlink control information corresponds to The values are equal.
- 如权利要求23所述的用户终端,其特征在于,还包括:上报单元,用于将所述每个TRP对应的CSI上报至网络侧。The user terminal according to claim 23, further comprising: a reporting unit, configured to report the CSI corresponding to each TRP to the network side.
- 如权利要求37所述的用户终端,其特征在于,所述上报单元,用于将所述每个TRP对应的CSI以及每一个CSI对应的有效性指示信息上报至所述网络侧。The user terminal according to claim 37, wherein the reporting unit is configured to report the CSI corresponding to each TRP and the validity indication information corresponding to each CSI to the network side.
- 如权利要求38所述的用户终端,其特征在于,所述有效性指示信息的长度为1比特或2比特。The user terminal according to claim 38, wherein the length of the validity indication information is 1 bit or 2 bits.
- 如权利要求37所述的用户终端,其特征在于,所述上报单元,用于采用如下任一种方式将所述每个TRP对应的CSI上报至所述网络侧:The user terminal according to claim 37, wherein the reporting unit is configured to report the CSI corresponding to each TRP to the network side in any of the following ways:向所述网络侧上报一条CSI报告,且所述一条CSI报告中承载所述每一个TRP对应的CSI;reporting a CSI report to the network side, and the CSI report corresponding to each TRP is carried in the CSI report;向所述网络侧上报多条CSI报告,且每一条CSI报告承载一个TRP对应的CSI。Multiple CSI reports are reported to the network side, and each CSI report carries CSI corresponding to one TRP.
- 如权利要求40所述的用户终端,其特征在于,当每一条CSI报告承载一个TRP对应的CSI时,每一个TRP对应的CSI报告的优先级均相同,且 每一个TRP对应的CSI报告中任一偶数子带CSI的优先级均高于所有TRP对应的CSI报告中任一奇数子带CSI的优先级。The user terminal according to claim 40, wherein when each CSI report carries CSI corresponding to one TRP, the priority of the CSI report corresponding to each TRP is the same, and any CSI report corresponding to each TRP has any priority. The priority of an even-numbered subband CSI is higher than the priority of any odd-numbered subband CSI in the CSI reports corresponding to all TRPs.
- 一种计算机可读存储介质,其上存储有计算机指令,其特征在于,所述计算机指令运行时执行权利要求1-22任一项所述的CSI计算方法的步骤。A computer-readable storage medium on which computer instructions are stored, characterized in that, when the computer instructions are executed, the steps of the CSI calculation method described in any one of claims 1-22 are executed.
- 一种用户终端,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机指令,其特征在于,所述处理器运行所述计算机指令时执行权利要求1-22任一项所述的CSI计算方法的步骤。A user terminal, comprising a memory and a processor, wherein the memory stores computer instructions that can be run on the processor, wherein the processor executes any of claims 1-22 when running the computer instructions. A step of the CSI calculation method.
- 一种芯片,包括处理器、存储器及存储在所述存储器上的计算机程序或指令,其特征在于,所述处理器执行所述计算机程序或指令以实现权利要求1-22任一项所述的CSI计算方法的步骤。A chip, comprising a processor, a memory, and a computer program or instruction stored on the memory, characterized in that the processor executes the computer program or instruction to implement the method described in any one of claims 1-22 Steps of the CSI calculation method.
- 一种芯片模组,包括收发组件和芯片,所述芯片包括处理器、存储器及存储在所述存储器上的计算机程序或指令,其特征在于,所述处理器执行所述计算机程序或指令以实现权利要求1-22任一项所述的CSI计算方法的步骤。A chip module includes a transceiver component and a chip, the chip includes a processor, a memory, and a computer program or instruction stored on the memory, characterized in that the processor executes the computer program or instruction to achieve The steps of the CSI calculation method according to any one of claims 1-22.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011148729.5A CN114501519A (en) | 2020-10-23 | 2020-10-23 | CSI calculation method, user terminal and computer readable storage medium |
CN202011148729.5 | 2020-10-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022083532A1 true WO2022083532A1 (en) | 2022-04-28 |
Family
ID=81291532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/124347 WO2022083532A1 (en) | 2020-10-23 | 2021-10-18 | Csi computation method, user terminal and computer-readable storage medium |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN114501519A (en) |
WO (1) | WO2022083532A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024077429A1 (en) * | 2022-10-10 | 2024-04-18 | Qualcomm Incorporated | Compensation or performance indication for channel state information report |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020030078A1 (en) * | 2018-08-09 | 2020-02-13 | Qualcomm Incorporated | Channel state information feedback for non-coherent joint transmissions |
CN110943943A (en) * | 2018-09-21 | 2020-03-31 | 电信科学技术研究院有限公司 | Method and device for determining channel state information |
CN110972184A (en) * | 2018-09-28 | 2020-04-07 | 北京展讯高科通信技术有限公司 | CSI calculation method, user terminal and computer readable storage medium |
-
2020
- 2020-10-23 CN CN202011148729.5A patent/CN114501519A/en active Pending
-
2021
- 2021-10-18 WO PCT/CN2021/124347 patent/WO2022083532A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020030078A1 (en) * | 2018-08-09 | 2020-02-13 | Qualcomm Incorporated | Channel state information feedback for non-coherent joint transmissions |
CN110943943A (en) * | 2018-09-21 | 2020-03-31 | 电信科学技术研究院有限公司 | Method and device for determining channel state information |
CN110972184A (en) * | 2018-09-28 | 2020-04-07 | 北京展讯高科通信技术有限公司 | CSI calculation method, user terminal and computer readable storage medium |
Non-Patent Citations (1)
Title |
---|
CATT: "Consideration on multi-TRP/panel transmission", 3GPP DRAFT; R1-1904561, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, 7 April 2019 (2019-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051699787 * |
Also Published As
Publication number | Publication date |
---|---|
CN114501519A (en) | 2022-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020156103A1 (en) | Information feedback method and device | |
CN105991231B (en) | Method and device for acquiring Channel State Information (CSI) | |
WO2021159493A1 (en) | Resource configuration method and apparatus | |
WO2020057383A1 (en) | Data transmission method and device | |
WO2019047979A1 (en) | Communication method and device | |
WO2017020749A1 (en) | Channel state information feedback method and related device for fd mimo system | |
JP7035182B2 (en) | Beam detection method and equipment | |
US11109251B2 (en) | Method and apparatus for channel state information reporting | |
US10362505B2 (en) | Method and terminal for handling channel state information | |
WO2014063647A1 (en) | Method and terminal for determining channel state information | |
WO2014019445A1 (en) | Method and device for configuring channel state information feedback, method and device for measurement and feedback | |
CN103580779B (en) | Channel quality instruction information reporting and determining method and equipment | |
WO2012146041A1 (en) | Channel state information processing method, apparatus and system | |
US20220408446A1 (en) | Efficient beam management for wireless networks | |
WO2017096954A1 (en) | Cqi estimation method, sinr determining method, and related device | |
WO2022048497A1 (en) | Channel state information transmission method, channel state information reception method, signaling information transmission method, node, and medium | |
US20220038154A1 (en) | Csi calculation method, user terminal and computer-readable storage medium | |
WO2021017893A1 (en) | Beam measurement method and device | |
WO2022254086A1 (en) | Apparatus for csi prediction control | |
WO2017076220A1 (en) | Channel state information csi feedback method, terminal and base station | |
WO2022083532A1 (en) | Csi computation method, user terminal and computer-readable storage medium | |
WO2024021652A1 (en) | Wireless communication method and device, and storage medium | |
WO2017114513A1 (en) | Csi feedback method and device | |
US20220321175A1 (en) | CRI Extension for Multi-TRP CSI Enhancement | |
WO2012136140A1 (en) | Method, access point and terminal for feeding back channel state information parameters |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21881949 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 03/08/2023) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21881949 Country of ref document: EP Kind code of ref document: A1 |