Method and apparatus for use in a node for wireless communications - Patents.com

Abstract

The present application discloses a method and apparatus for use in a node for wireless communication. A first node receives first CSI configuration information, receives first signaling, receives first RS resources, and transmits a first CSI report. The first CSI configuration information is used to indicate the first RS resources. Measurements on the first RS resources are used to generate the first CSI report. The first CSI configuration information is used to indicate M index sets, where M is a positive integer greater than 1. Any one of the M index sets includes at least one index group. Any index group in the M index sets includes at least one index. Any index in the M index sets is used to indicate one port of the first RS resources. Any index group in the M index sets corresponds to one rank. The first signaling is used to determine the first port group. The present application improves efficiency and reduces system implementation complexity.

Description

[Technical Field]

[0001] The present application relates to a transmission method and a transmission apparatus for a wireless communication system, and more particularly to a transmission method and a transmission apparatus for a wireless signal in a wireless communication system supporting a cellular network. [Background technology]

[0002] In wireless communication systems supporting multi-antenna transmission, it is common for user equipment (UE) to generate and feed back channel state information (CSI) based on at least one of channel measurements or interference measurements to assist multi-antenna processing in the base station. In 5G New Radio (NR) systems, the CSI report includes at least one of the following: CRI (CSI-RS Resource Indicator), RI (Rank indication), PMI (Precoding matrix indicator), and CQI (Channel quality indicator). In NR Release-18, research on network energy efficiency was initiated, including several key techniques, such as dynamic adaptation of spatial elements, e.g., active transceiver chains and active antenna panels, and CSI-RS configuration updates. Summary of the Invention

[0003] The inventors have found through research that how to generate a CSI (Channel Status Information) report based on RS (Reference Signal) resources is an important issue.

[0004] In response to the above problems, the present application discloses a solution. In the description of the present application, a multi-antenna panel is used merely as a typical application scenario or example, and it should be noted that the present application can also be applied to a single-antenna panel application scenario. Furthermore, adopting a unified design scheme for different scenarios (including, but not limited to, a multi-antenna panel, a single-antenna panel, etc.) may also help reduce hardware complexity and cost. When there is no contradiction, the embodiments and features in the embodiments of any node in the present application can be applied to any other node. When there is no contradiction, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0005] In one embodiment, the interpretation of terms in this application is based on the definitions in the 3GPP standard protocol TS36 series.

[0006] In one embodiment, the interpretation of terms in this application is based on the definitions in the 3GPP standard protocol TS38 series.

[0007] In one embodiment, the interpretation of terms in this application is based on the definitions in the 3GPP standard protocol TS37 series.

[0008] In one embodiment, the interpretation of terms in this application is based on the definitions of standard protocols of the Institute of Electrical and Electronics Engineers (IEEE).

[0009] The present application discloses a method for use in a first node for wireless communication, the method comprising:

[0010] receiving first CSI configuration information, receiving first signaling, and receiving first RS resources;

[0011] transmitting a first CSI report;

[0012] the first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0013] In one embodiment, the problem solved by this application includes generating a CSI report based on measurements on RS resources.

[0014] According to one aspect of the present application, the first port group is one of M1 port groups, where M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

[0015] According to one aspect of the present application, the number of index groups included in the index set corresponding to each of the M1 port groups is equal to or less than the number of ports included in the M1 port groups.

[0016] According to one aspect of the present application, the first index set includes R index groups, the R index groups respectively corresponding to R ranks, the R ranks being different for each comparison partner, the first rank being one of the R ranks, R being a positive integer greater than 1, and the first index group being the index group corresponding to the first rank among the R index groups.

[0017] According to one aspect of the present application, there are two index groups that respectively belong to two index sets among the M index sets and correspond to the same rank.

[0018] According to one aspect of the present application, a first port group includes non-zero power ports of a first RS resource.

[0019] According to one aspect of the present application, the method comprises:

[0020] receiving at least one RS resource other than the first RS resource in the first RS resource group;

[0021] receiving a second RS resource group;

[0022] A first RS resource group is configured for channel measurement, a second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is used to indicate a first RS resource from the first RS resource group, and a first rank and a first CQI are obtained based on the first RS resource index.

[0023] The present application discloses a method for use in a second node for wireless communication, the method comprising:

[0024] transmitting first CSI configuration information, transmitting first signaling, and transmitting first RS resources;

[0025] receiving a first CSI report;

[0026] the first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0027] According to one aspect of the present application, the first port group is one of M1 port groups, where M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

[0028] According to one aspect of the present application, the number of index groups included in the index set corresponding to each of the M1 port groups is equal to or less than the number of ports included in the M1 port groups.

[0029] According to one aspect of the present application, the first index set includes R index groups, the R index groups respectively corresponding to R ranks, the R ranks being different for each comparison partner, the first rank being one of the R ranks, R being a positive integer greater than 1, and the first index group being the index group corresponding to the first rank among the R index groups.

[0030] According to one aspect of the present application, there are two index groups that respectively belong to two index sets among the M index sets and correspond to the same rank.

[0031] According to one aspect of the present application, a first port group includes non-zero power ports of a first RS resource.

[0032] According to one aspect of the present application, the method comprises:

[0033] transmitting at least one RS resource other than the first RS resource in the first RS resource group;

[0034] transmitting a second RS resource group;

[0035] A first RS resource group is configured for channel measurement, a second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is used to indicate a first RS resource from the first RS resource group, and a first rank and a first CQI are obtained based on the first RS resource index.

[0036] The present application discloses a first node device used in wireless communication. The first node device comprises:

[0037] a first receiver configured to receive first CSI configuration information, receive first signaling, and receive first RS resources;

[0038] a first transmitter configured to transmit a first CSI report;

[0039] the first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0040] The present application discloses a second node device used in wireless communication. The device is

[0041] a second transmitter configured to transmit first CSI configuration information, transmit first signaling, and transmit first RS resources;

[0042] a second receiver configured to receive the first CSI report;

[0043] the first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0044] In one embodiment, compared to conventional solutions, the present application has the following advantages:

[0045] When generating the CSI report, different application scenarios are considered, such as different ports, different beams, different antennas, and different spatial characteristics.

[0046] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of the non-limiting embodiments in the following drawings. [Brief explanation of the drawings]

[0047] [Figure 1] 1 illustrates a flowchart of first CSI configuration information, first signaling, first RS resource, and first CSI report according to an embodiment of the present application; [Figure 2]1 shows a schematic diagram of a network architecture according to an embodiment of the present application; [Figure 3] FIG. 1 illustrates a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane, according to an embodiment of the present application. [Figure 4] 1 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application; [Figure 5] 1 illustrates a flowchart of wireless transmission according to an embodiment of the present application. [Figure 6] 1 illustrates a schematic diagram of a first set of indexes and a first group of ports according to an embodiment of the present application; [Figure 7] 1 illustrates a schematic diagram of M1 port groups and corresponding index sets according to an embodiment of the present application; [Figure 8] 1 illustrates a schematic diagram of a relationship between a first index group and a first rank according to an embodiment of the present application; [Figure 9] FIG. 10 shows a schematic diagram of a relationship between a first index group and a first rank according to another embodiment of the present application; [Figure 10] 1 shows a schematic diagram of M index sets according to an embodiment of the present application; [Figure 11] 1 illustrates a schematic diagram of a first port group according to an embodiment of the present application; [Figure 12] FIG. 2 illustrates a structural block diagram of a processing device used in a first node device according to an embodiment of the present application. [Figure 13] FIG. 10 illustrates a structural block diagram of a processing device used in a second node device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0048] The technical solutions of the present application are described in further detail below in conjunction with the accompanying drawings. It should be noted that, if there is no contradiction, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0049] Embodiment 1 Embodiment 1 illustrates a flowchart of first CSI configuration information, first signaling, first RS resource, and first CSI report according to an embodiment of the present application, as shown in Figure 1. In 100 shown in Figure 1, each box represents a step.

[0050] In embodiment 1, a first node in the present application receives first CSI configuration information in step 101, receives first signaling in step 102, receives first RS resources in step 103, and transmits a first CSI report in step 104, where the first CSI configuration information is used to indicate the first RS resources, measurements on the first RS resources are used to generate the first CSI report, and the first CSI configuration information is used to indicate M index sets, where M is a positive integer greater than 1, and any index set among the M index sets includes at least one index group, and any index in the M index sets is used to indicate M index sets. The index group includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine the first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0051] In one embodiment, the first RS resource is configured by Radio Resource Control (RRC) signaling.

[0052] In one embodiment, the first RS resource is indicated by some or all of the fields in the RRC IE.

[0053] In one embodiment, the first RS resource is triggered by physical layer signaling.

[0054] In one embodiment, the first RS resource is triggered by a first signaling.

[0055] In one embodiment, the first RS resource is triggered by DCI signaling.

[0056] In one embodiment, the time domain resource occupied by the first RS resource lags behind the time domain resource occupied by the first signaling.

[0057] In one embodiment, the first RS resource is a CSI-RS (Channel Status Information-Reference Signal) resource or a SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resource.

[0058] In one embodiment, the first RS resource is a CSI-RS resource.

[0059] In one embodiment, the first RS resource is a non-zero power (NZP) CSI-RS resource.

[0060] In one embodiment, the first RS resource is a CSI-RS resource for channel measurement.

[0061] In one embodiment, the first RS resource is a CSI-RS resource or an SSB resource for channel measurement.

[0062] Typically, the first RS resource is used for channel measurement.

[0063] In one embodiment, the first CSI configuration information is carried by higher layer signaling.

[0064] In one embodiment, the first CSI configuration information is carried by RRC signaling.

[0065] In one embodiment, the first CSI configuration information includes one or more RRC IEs.

[0066] In one embodiment, the first CSI configuration information is an IE CSI-ReportConfig.

[0067] In one embodiment, the first CSI configuration information is used to indicate a first CSI resource configuration, and the first CSI resource configuration is used to indicate a first RS resource.

[0068] In one embodiment, the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, the first CSI resource configuration is used to indicate a first RS resource, the second CSI resource configuration is used to indicate a second RS resource, the first RS resource is used for channel measurement, and the second RS resource is used for interference measurement.

[0069] In one embodiment, the first CSI configuration information is used to indicate a first CSI resource configuration, a second CSI resource configuration, and a third CSI resource configuration, the first CSI resource configuration is used to indicate a first RS resource, the second CSI resource configuration is used to indicate a second RS resource, the third CSI resource configuration is used to indicate a third RS resource, the first RS resource is used for channel measurement, and the second RS resource and the third RS resource are used for interference measurement.

[0070] As a subembodiment of the above embodiment, the first receiver receives the third RS resource. do.

[0071] As a subembodiment of the above embodiment, the method in the first node includes receiving a third RS resource.

[0072] In one embodiment, the first RS resource is a CSI-RS resource for channel measurement, and the second RS resource is a CSI-IM (Channel State Information-Interference Measurement) resource.

[0073] In one embodiment, the first RS resource is a CSI-RS resource used for channel measurement, the second RS resource is a CSI-IM resource, and the third RS resource is an NZP CSI-RS resource used for interference measurement.

[0074] In one embodiment, the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, the first CSI resource configuration is used to indicate a first RS resource group, the first RS resources belong to the first RS resource group, the second CSI resource configuration is used to indicate a second RS resource group, the second RS resources belong to the second RS resource group, the first RS resource group is used for channel measurement, and the second RS resource group is used for interference measurement.

[0075] In one embodiment, the first CSI configuration information is used to indicate a first CSI resource configuration, a second CSI resource configuration, and a third CSI resource configuration, the first CSI resource configuration is used to indicate a first RS resource group, where the first RS resources belong to the first RS resource group, the second CSI resource configuration is used to indicate a second RS resource group, where the second RS resources belong to the second RS resource group, the third CSI resource configuration is used to indicate a third RS resource group, where the third RS resources belong to the third RS resource group, the first RS resource group is used for channel measurement, and the second RS resource group and the third RS resource group are used for interference measurement.

[0076] As a subembodiment of the above embodiment, the first receiver receives a third RS resource group.

[0077] As a subembodiment of the above embodiment, the method in the first node includes receiving a third RS resource group.

[0078] In one embodiment, the first CSI configuration information includes a resourcesForChannelMeasurement field, and the resourcesForChannelMeasurement field included in the first CSI configuration information is used to indicate the first CSI resource configuration.

[0079] In one embodiment, the first CSI configuration information includes a csi-IM-ResourcesForInterference field, and the csi-IM-ResourcesForInterference field included in the first CSI configuration information is used to indicate the second CSI resource configuration.

[0080] In one embodiment, the first CSI configuration information includes an nzp-CSI-RS-ResourcesForInterference field, and the nzp-CSI-RS resources for interference measurement field included in the first CSI configuration information is used to indicate the third CSI resource configuration.

[0081] In one embodiment, the first RS resource group includes multiple CSI-RS resources for channel measurement.

[0082] In one embodiment, the first RS resource group includes multiple CSI-RS resources or SSB resources for channel measurement.

[0083] In one embodiment, the first RS resource group includes multiple CSI-RS resources or SSB resources.

[0084] In one embodiment, the first RS resource group includes a plurality of CSI-RS resources.

[0085] In one embodiment, the first RS resource group includes a plurality of NZP CSI-RS resources.

[0086] In one embodiment, the first RS resource group includes a plurality of CSI-RS resources for channel measurement, and the second RS resource group includes a plurality of CSI-IM resources.

[0087] In one embodiment, the first RS resource group includes multiple CSI-RS resources for channel measurement, the second RS resource group includes multiple CSI-IM resources, and the third RS resource group includes multiple NZP CSI-RS resources for interference measurement.

[0088] In one embodiment, the first RS resource group includes a plurality of CSI-RS resources or SSB resources for channel measurement, and the second RS resource group includes a plurality of CSI-IM resources.

[0089] In one embodiment, the first RS resource group includes multiple CSI-RS resources or SSB resources for channel measurement, the second RS resource group includes multiple CSI-IM resources, and the third RS resource group includes multiple NZP CSI-RS resources for interference measurement.

[0090] In one embodiment, the first CSI resource configuration is an IE CSI-ResourceConfig, and an identifier of the first CSI resource configuration is a CSI-ResourceConfigId.

[0091] Typically, the first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a rank indicator (RI) and a channel quality indicator (CQI).

[0092] In one embodiment, the first CSI report is a non-PMI-based CSI report.

[0093] In one embodiment, the first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a CSI-RS resource index (CRI), an RI, and a CQI.

[0094] In one embodiment, the first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report does not include PMI.

[0095] In one embodiment, the first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes only CRI, RI, and CQI.

[0096] As an embodiment, specific definitions of the IEs CSI-ReportConfig, resourcesForChannelMeasurement, csi-IM-ResourcesForInterference, nzp-CSI-RS-ResourcesForInterference, IEs CSI-ResourcesConfig, and CSI-ResourcesConfigId can be found in Chapter 6.3.2 of 3GPP TS 38.331.

[0097] In one embodiment, the first CSI report is generated based on at least channel information generated by measurements on the first RS resource.

[0098] In one embodiment, the first CSI report is generated based on at least channel measurements performed on the first RS resource.

[0099] In one embodiment, the first CSI report is generated based on channel information generated by measurements on the first RS resource and the second RS resource.

[0100] In one embodiment, the first CSI report is generated based on channel information generated by measurements on the first RS resource, the second RS resource, and the third RS resource.

[0101] In one embodiment, the first CSI report is generated based on a channel measurement performed on a first RS resource and an interference measurement performed on a second RS resource.

[0102] In one embodiment, the first CSI report is generated based on a channel measurement performed on a first RS resource, an interference measurement performed on a second RS resource, and an interference measurement performed on a third RS resource.

[0103] In one embodiment, the measurement value for at least the first RS resource is used to obtain a reporting amount for the first CSI report.

[0104] In one embodiment, the measurement value for the first RS resource and the measurement value for the second RS resource are used to obtain a reporting amount for the first CSI report.

[0105] In one embodiment, the measurement value on the first RS resource, the measurement value on the second RS resource, and the measurement value on the third RS resource are used to obtain a reporting amount for the first CSI report.

[0106] In one embodiment, measurements on at least the first RS resource are used to obtain at least CRI, RI, and CQI.

[0107] In one embodiment, the measurement value for the first RS resource and the measurement value for the second RS resource are used to obtain at least a CRI, an RI, and a CQI.

[0108] In one embodiment, the measurement value for the first RS resource, the measurement value for the second RS resource, and the measurement value for the third RS resource are used to obtain at least a CRI, an RI, and a CQI.

[0109] In one embodiment, measurements for at least the first RS resource are used only to obtain CRI, RI, and CQI.

[0110] In one embodiment, the measurements on the first RS resource and the measurements on the second RS resource are used only to obtain the CRI, RI, and CQI.

[0111] In one embodiment, the measurement value for the first RS resource, the measurement value for the second RS resource, and the measurement value for the third RS resource are only used to obtain the CRI, RI, and CQI.

[0112] In one embodiment, measurements on at least the first RS resource are used to obtain a channel matrix.

[0113] In one embodiment, the first CSI configuration information includes M pieces of lower information, and each of the M pieces of lower information includes M index sets.

[0114] In one embodiment, the names of the M subordinate information all include non-PMI-PortIndication.

[0115] In one embodiment, all of the M pieces of subordinate information belong to a non-PMI-PortIndication field.

[0116] In one embodiment, the names of the M lower information items all include non-PMI-Port.

[0117] In one embodiment, the names of the M pieces of lower information all include a port index (PortIndex).

[0118] In one embodiment, the names of the M pieces of lower information all include PortIndexFor8Ranks (port index for 8 ranks).

[0119] In one embodiment, any number of pieces of lower information among the M pieces of lower information include at least one of portIndex8 (port index 8), portIndex4 (port index 4), portIndex2 (port index 2), or portIndex1 (port index 1).

[0120] In one embodiment, any index in the set of M indexes is a non-negative integer.

[0121] In one embodiment, any index in the set of M indexes is A non-negative integer less than the number of ports on the resource.

[0122] In one embodiment, the number of index groups included in any one of the M index sets is less than or equal to the number of ports of the first RS resource.

[0123] In one embodiment, the number of index groups included in each of the M index sets is equal to the number of ports of the first RS resource.

[0124] In one embodiment, the number of index groups included in each of the M index sets is the same.

[0125] In one embodiment, at least two of the M index sets each include a different number of index groups.

[0126] In one embodiment, the number of indexes included in any group of indexes in the set of M indexes is equal to the corresponding rank.

[0127] In one embodiment, a given index group is any index group in the set of M indexes, and the rank corresponding to the given index group is equal to the number of indexes included in the given index group.

[0128] In one embodiment, the rank corresponding to any index group in the M index sets is less than or equal to the number of ports of the first RS resource.

[0129] In one embodiment, the ranks corresponding to two index groups belonging to the same index set among the M index sets are different.

[0130] In one embodiment, the ranks corresponding to any two index groups belonging to the same index set among the M index sets are different.

[0131] In one embodiment, the number of indexes included in any index group in the M index sets is equal to the corresponding rank, and any two index groups belonging to the same index set among the M index sets each include a different number of indexes.

[0132] In one embodiment, there is at least one index group whose corresponding rank is the first rank in at least one index set other than the first index set among the M index sets.

[0133] In one embodiment, all indexes in any index group in the M index sets are arranged in layer order.

[0134] In one embodiment, there are two groups of indexes, each belonging to two of the M sets of indexes and corresponding to a different rank.

[0135] In one embodiment, among the M index sets, there are two index sets each containing a group of indexes with a different corresponding maximum rank.

[0136] In one embodiment, among the M index sets, there are two index sets each containing a corresponding group of indexes with the same maximum rank.

[0137] As an embodiment, specific definitions of non-PMI-PortIndication, PortIndexFor8Ranks, portIndex8, portIndex4, portIndex2, and portIndex1 can be found in Chapter 6.3.2 of 3GPP TS 38.331.

[0138] In one embodiment, the first rank is equal to or less than the number of ports included in the first port group.

[0139] In one embodiment, the first rank is equal to or less than the number of ports of the first RS resource.

[0140] In one embodiment, the precoder of the port of the first RS resource indicated by the first index group is an identity matrix.

[0141] As an embodiment, the statement "the precoder of the port of the first RS resource indicated by the first index group is an identity matrix" means that the precoder of the port of the first RS resource indicated by the first index group is assumed to be an identity matrix.

[0142] In one embodiment, the calculation of the first CQI is not conditional on the PMI (Precoding Matrix Index).

[0143] In one embodiment, the calculation of the first CQI is independent of the codebook.

[0144] In one embodiment, the sentence "the calculation of the first CQI is conditioned on the ports of the first RS resource indicated by the first index group" means that the calculation of the first CQI is conditioned on only the ports of the first RS resource indicated by the first index group among all the ports of the first RS resource.

[0145] In one embodiment, the statement "the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group" means that the calculation of the first CQI is independent of any port among all ports of the first RS resource other than the port of the first RS resource indicated by the first index group.

[0146] In one embodiment, the statement "the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group" means that the precoder of the port of the first RS resource indicated by the first index group is an identity matrix.

[0147] In one embodiment, the statement "the calculation of the first CQI is conditioned on the port of the first RS resource indicated by the first index group" means that the calculation of the first CQI is not conditioned on the PMI.

[0148] In one embodiment, the statement "the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group" means that the calculation of the first CQI is independent of the codebook.

[0149] In one embodiment, the sentence "the calculation of the first CQI is conditioned on the port of the first RS resource indicated by the first index group" may be interpreted as meaning that the first node and calculating a first CQI based on the number of ports of the first RS resource indicated by the first index group corresponding to a different layer.

[0150] In one embodiment, the phrase "the calculation of the first CQI is conditional on the ports of the first RS resources indicated by the first index group" means that the number of ports of the first RS resources indicated by the first index group equal to the first rank is equal to the first rank, and the first node calculates the first CQI based on transmitting each layer on the ports of the first RS resources indicated by the first index group.

[0151] In one embodiment, the sentence "the calculation of the first CQI is conditional on the ports of the first RS resource indicated by the first index group" means that the first node calculates the first CQI based on the number of ports of the first RS resource indicated by the first index group equal to the first rank.

[0152] In one embodiment, the phrase "the calculation of the first CQI is conditional on the ports of the first RS resources indicated by the first index group" means that the number of ports of the first RS resources indicated by the first index group is equal to the first rank, and the first node calculates the first CQI based on the ports of the first RS resources indicated by the first index group corresponding to each layer of the first rank.

[0153] In one embodiment, the phrase "the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group" means that the first node calculates the first CQI based on measurements for the port of the first RS resource indicated by the first index group.

[0154] In one embodiment, the phrase "the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group" means that the first node calculates the first CQI based on a channel matrix obtained by measurements on the port of the first RS resource indicated by the first index group.

[0155] Under the limitations of the above methods or embodiments, the specific algorithm for calculating the first CQI is determined by the manufacturer of the first node or is related to the implementation. An exemplary but non-limiting implementation is described below.

[0156] The first node first measures the ports of the first RS resource indicated by the first index group to obtain a channel parameter matrix H r×t where r and t are the number of receive antennas and the number of ports of the first RS resource indicated by the first index group, respectively, and the precoding matrix W t×l Under the condition that r×t ·W t×l where l is the rank, or number of layers. In some cases, l is a positive integer less than or equal to t, and in other cases, the precoding matrix is ​​an identity matrix and t=l. H r×t ·W t×l The equivalent channel capacity of is calculated using a criterion such as SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual information ratio), and then the first CQI is determined by the equivalent channel capacity by table lookup, etc. The calculation of the equivalent channel capacity requires the first node to estimate the interference (including noise), and the first node can measure the interference more accurately by using at least the second RS resource among the second and third RS resources in this application. In general, the direct mapping from the equivalent channel capacity to a CQI value depends on the performance of the receiver or hardware-related factors such as the modulation scheme.

[0157] In one embodiment, the first index group is the only index group in the first index set whose corresponding rank is equal to the first rank.

[0158] In one embodiment, the first index group is one of a plurality of index groups in the first index set whose corresponding rank is equal to the first rank.

[0159] In one embodiment, the first signaling is MAC CE signaling.

[0160] In one embodiment, the first signaling is physical layer signaling.

[0161] In one embodiment, the first signaling is UE specific.

[0162] In one embodiment, the first signaling is non-UE specific.

[0163] In one embodiment, the first signaling is specific to a UE group.

[0164] In one embodiment, the first signaling is cell-wide.

[0165] In one embodiment, the first signaling is DCI signaling.

[0166] In one embodiment, a field in the first signaling is used to determine the first port group.

[0167] In one embodiment, multiple fields in the first signaling are used to determine the first port group.

[0168] In one embodiment, the DCI format of the first signaling is used to determine the first port group.

[0169] In one embodiment, the first signaling is used to indicate a first port group.

[0170] In one embodiment, the first signaling explicitly indicates the first port group.

[0171] In one embodiment, the first signaling implicitly indicates the first port group.

[0172] In one embodiment, the first signaling is used to determine a zero power port.

[0173] In one embodiment, the first signaling is used to determine the non-zero power ports.

[0174] In one embodiment, the first signaling is used to determine the active port.

[0175] In one embodiment, the first signaling is used to determine inactive ports.

[0176] In one embodiment, the first signaling is used to determine the muted port.

[0177] In one embodiment, the first signaling is used to determine the active CORESET.

[0178] In one embodiment, the first signaling is used to determine an inactive CORESET.

[0179] In one embodiment, the first signaling is used to determine the muted CORESET.

[0180] In one embodiment, the first signaling is used to determine a zero-power port of the first RS resource.

[0181] In one embodiment, the first signaling is used to determine a non-zero power port of the first RS resource.

[0182] In one embodiment, the first signaling is used to determine all zero-power ports of the first RS resource.

[0183] In one embodiment, the first signaling is used to determine all non-zero power ports of the first RS resource.

[0184] In one embodiment, the port includes an antenna port.

[0185] In one embodiment, the port includes a CSI-RS port.

[0186] In one embodiment, the port includes an RS port.

[0187] In one embodiment, the first signaling includes a first Transmission Control Indicator (TCI). Configuration Indicator (TCI) is used to indicate a state group, where the first port group depends on the first TCI state group.

[0188] As one subembodiment of the above embodiment, the first port group includes ports of RS resources in the first TCI state group.

[0189] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are QCL (quasi-colocated) with ports of RS resources in the first TCI state group.

[0190] In one embodiment, the first signaling is used to indicate a first TCI state group, and the first port group depends on the first TCI state group, and the first TC The I state group is one of M1 TCI state groups, where M1 is a positive integer greater than 1, and the M1 port groups depend on the M1 TCI state groups.

[0191] As one subembodiment of the above embodiment, the M1 port groups each include ports of the RS resources in the M1 TCI state groups.

[0192] As one subembodiment of the above embodiment, each of the M1 port groups includes ports of RS resources that QCL with the RS resources in the M1 TCI state groups.

[0193] As a sub-embodiment of the above embodiment, any TCI state group among the M1 TCI state groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more TCI state groups among the M1 TCI state groups, and the statement "the first index set depends on the first port group" means that the first index set is the index set corresponding to the first TCI state group among the M index sets.

[0194] In one embodiment, the first signaling is used to indicate a first CORESET (Control Resource Set) pool, the first port group depends on the first CORESET pool, the first CORESET pool includes at least one CORESET, and the second CORESET pool includes at least one CORESET.

[0195] As one subembodiment of the above embodiment, the first port group includes ports of RS resources in the TCI state of the first CORESET pool.

[0196] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are quasi-colocated with TCI-state RS resources of the first CORESET pool.

[0197] In one embodiment, the first signaling is used to indicate a first CORESET pool, the first port group depends on the first CORESET pool, the first CORESET pool is one of M1 CORESET pools, M1 is a positive integer greater than 1, and the M1 port groups depend on the M1 CORESET pools.

[0198] As a subembodiment of the above embodiment, M1 port groups each contain ports of TCI-state RS resources of M1 CORESET pools.

[0199] As a subembodiment of the above embodiment, M1 port groups each include ports of RS resources in TCI state and RS resources that are QCL from M1 CORESET pools.

[0200] As a subembodiment of the above embodiment, any CORESET pool among the M1 CORESET pools corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more CORESET pools among the M1 CORESET pools, and the statement "the first index set depends on the first port group" means that the first index set is the index set corresponding to the first CORESET pool among the M index sets.

[0201] In one embodiment, the phrase "the first set of indexes depends on the first port group" means that the first set of indexes depends on the information indicated by the first signaling.

[0202] In one embodiment, the phrase "the first set of indexes depends on the first port group" means that the first set of indexes depends on a portion of the information indicated by the first signaling.

[0203] In one embodiment, the first signaling is used to indicate a first RS resource set, and the first port group depends on the first RS resource set.

[0204] As a subembodiment of the above embodiment, the first port group does not belong to the ports of the first RS resource set.

[0205] As a subembodiment of the above embodiment, the first port group belongs to the ports of the first RS resource set.

[0206] In one embodiment, the first signaling is used to indicate a first RS resource set, where the first RS resource set is one of M1 RS resource sets, the M1 port groups depend on the M1 RS resource sets, M1 is a positive integer greater than 1, and the first port group depends on the first RS resource set.

[0207] As a subembodiment of the above embodiment, the M1 port groups do not belong to the ports of the M1 RS resource sets, respectively.

[0208] As a subembodiment of the above embodiment, the M1 port groups belong to the ports of the M1 RS resource sets, respectively.

[0209] As a subembodiment of the above embodiment, any RS resource set among the M1 RS resource sets corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more RS resource sets among the M1 RS resource sets, and the phrase "the first index set depends on the first port group" means that the first index set is the index set corresponding to the first RS resource set among the M index sets.

[0210] In one embodiment, the first signaling is used to indicate a first RS resource set, the first RS resource set being one of M1 RS resource sets, the M1 port groups depending on the M1 RS resource sets, M1 being a positive integer greater than 1, the first port group depending on the first RS resource set, any RS resource set among the M1 RS resource sets corresponding to one of the M index sets, any index set among the M index sets corresponding to one or more RS resource sets among the M1 RS resource sets, and the first index set being an index set corresponding to the first RS resource set among the M index sets.

[0211] In one embodiment, "two ports being quasi-collocated" means that the two ports have at least one identical QCL parameter.

[0212] In one embodiment, "two ports are quasi-collocated" means that the two ports are It means that it has QCL parameters.

[0213] In one embodiment, "two ports quasi-collocated" means that the two ports have the same Type-D QCL parameters.

[0214] In one embodiment, "two ports quasi-collocated" means that the two ports have the same spatial reception parameters.

[0215] In one embodiment, the TCI (Transmission Configuration Indicator) state indicates a quasi-collocation relationship.

[0216] In one embodiment, the TCI state indicates one or more reference signal resources.

[0217] In one embodiment, the TCI state indicates at least one reference signal resource.

[0218] In one embodiment, any reference signal resource indicated by the TCI state is one of an SRS (Sounding Reference Signal) resource, a CSI-RS (Channel State Information Reference Signal) resource, or an SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resource.

[0219] In one embodiment, any reference signal resource indicated by a TCI state is a CSI-RS resource or an SS / PBCH block resource.

[0220] In one embodiment, the TCI state indicates at least one reference signal resource and a quasi-co-located (QCL) parameter corresponding to each reference signal resource.

[0221] In one embodiment, the TCI state indicates at least one reference signal resource and the type of QCL parameters corresponding to each reference signal resource.

[0222] In one embodiment, the types of QCL parameters include Type A, Type B, Type C, and Type D.

[0223] In one embodiment, the Type A QCL parameters include Doppler shift, Doppler spread, mean delay, and delay spread.

[0224] In one embodiment, the Type B QCL parameters include Doppler shift and Doppler spread.

[0225] In one embodiment, the Type C QCL parameters include Doppler shift and mean delay.

[0226] In one embodiment, the Type D QCL parameters include spatial Rx parameters.

[0227] As an embodiment, specific definitions of Type A, Type B, Type C, and Type D can be found in Chapter 5.1.5 of 3GPP TS38.214.

[0228] In one embodiment, the QCL parameters include one or more of delay spread, Doppler spread, Doppler shift, mean delay, or spatial Rx parameters.

[0229] In one embodiment, the QCL parameters include Doppler shift and Doppler spread.

[0230] In one embodiment, the QCL parameters include Doppler shift and mean delay.

[0231] In one embodiment, the QCL parameters include spatial Rx parameters.

[0232] In one embodiment, the QCL parameters include at least one of spatial transmit parameters or spatial Rx parameters.

[0233] In one embodiment, the QCL parameters include a spatial domain receive filter.

[0234] In one embodiment, the QCL parameters include a spatial domain filter.

[0235] In one embodiment, the QCL parameters include at least one of a spatial domain transmit filter or a spatial domain receive filter.

[0236] As an embodiment, specific definitions of TCI states and quasi-collocation (QCL) can be found in chapter 5.1.5 of 3GPP TS38.214.

[0237] In one embodiment, specific definitions of CORESET and TCI states can be found in Chapter 10 of 3GPP TS38.213.

[0238] Embodiment 2 Embodiment 2, as shown in FIG. 2, illustrates a schematic diagram of a network architecture according to an embodiment of the present application.

[0239] 2 illustrates a network architecture 200 for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture 200 for LTE, LTE-A, and future 5G systems may be referred to as an Evolved Packet System (EPS) 200. The 5G NR or LTE network architecture 200 may be referred to as a 5G System (5GS) / Evolved Packet System (EPS) 200 or other suitable terminology. The 5GS / EPS 200 may include one or more User Equipment (UE) 201, one UE 241 communicating with the UE 201 via a sidelink, a Next Generation Radio Access Network (NG-RAN) 202, a 5G Core Network (5GC) / Evolved Packet Core (EPC) 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet Services 230. The 5GS / EPS 200 may be interconnected with other access networks, although these entities / interfaces are not shown for the sake of brevity. As shown in FIG. 2, the 5GS / EPS 200 provides packet-switched services, although those skilled in the art will understand that the various concepts presented throughout this application may also provide circuit-switched services. It will be readily understood that the NG-RAN 202 may be extended to a network including a 5G / 5G RAN (NG-RAN) 202. The NG-RAN 202 includes a New Radio (NR) Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user plane and control plane protocol termination for the UE 201. The gNB 203 may be connected to the other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), transmit receive point (TRP), or other suitable terminology. The gNB 203 provides an access point to the 5G / 5G RAN (5G RAN) 210 for the UE 201. Examples of the UE 201 include a mobile phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to the UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. The gNB 203 is connected to the 5GC / EPC 210 via an S1 / NG interface. The 5GC / EPC 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213.The MME / AMF / SMF 211 is a control node that handles signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer management and connection management. All user IP (Internet Protocol) packets are transmitted via the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet services 230. The Internet services 230 include the operator's corresponding Internet Protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched services.

[0240] In one embodiment, the first node in this application includes a UE 201.

[0241] In one embodiment, the first node in this application includes the UE 241.

[0242] In one embodiment, the second node in this application includes gNB203.

[0243] Embodiment 3 Embodiment 3, as shown in FIG. 3, illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application.

[0244] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3. FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture of a user plane 350 and a control plane 300. FIG. 3 illustrates a first communication node device (UE in V2X, gNB 3 shows a radio protocol architecture of a control plane 300 between a first communication node device (gNB, UE, or RSU) and a second communication node device (gNB, UE, or RSU in V2X), or between two UEs, using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer is referred to as PHY 301 in this specification. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, a RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Link Control) sublayer 304, which are terminated in the second communication node device. The cellular communication system includes a Packet Data Convergence Protocol (PDCP) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports inter-cell mobility of the first communication node device between second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical channels and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within the cells between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first and second communication node devices in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, except that the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a Service Data Adaptation Protocol (SDAP) sublayer 356, which is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0245] As an embodiment, the radio protocol architecture of FIG. 3 is applicable to the first node of the present application.

[0246] In one embodiment, the radio protocol architecture of FIG. 3 is applicable to the second node of the present application.

[0247] In one embodiment, the first CSI configuration information is generated in the RRC sublayer 306.

[0248] In one embodiment, the first signaling is generated in the MAC sublayer 302 .

[0249] In one embodiment, the first signaling is generated in the MAC sublayer 352 .

[0250] In one embodiment, the first signaling is generated in PHY 301 .

[0251] In one embodiment, the first signaling is generated in PHY 351 .

[0252] In one embodiment, the first RS resource is generated in PHY 301 .

[0253] In one embodiment, the first RS resource is generated in PHY 351 .

[0254] In one embodiment, the first RS resource group is generated in PHY 301 .

[0255] In one embodiment, the first RS resource group is generated in PHY 351 .

[0256] In one embodiment, the second RS resource group is generated in PHY 301 .

[0257] In one embodiment, the second RS resource group is generated in PHY 351 .

[0258] In one embodiment, the third RS resource group is generated in PHY 301 .

[0259] In one embodiment, the third RS resource group is generated in PHY 351 .

[0260] In one embodiment, the first CSI report is generated in PHY 301.

[0261] In one embodiment, the first CSI report is generated in PHY 351.

[0262] Embodiment 4 Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0263] The first communication device 410 includes a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418, and an antenna 420.

[0264] The second communications device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, and a transmitter / receiver. 454 and an antenna 452.

[0265] For transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to the controller / processor 475 at the first communication device 410. The controller / processor 475 implements the functions of the L2 layer. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) in the second communication device 450, as well as constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream.Each transmitter 418 converts the baseband multi-carrier symbol stream provided by a multi-antenna transmit processor 471 into a radio frequency stream, which is then provided to a different antenna 420 .

[0266] In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal via its corresponding antenna 452 at the second communication device 450. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream, which is then provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and reference signal are demultiplexed by the receive processor 456, the reference signal is used for channel estimation, and the data signal is recovered into arbitrary parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted on the physical channel by the first communication device 410. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functionality of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 , sometimes referred to as a computer-readable medium. In the Downlink (DL), the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decoding, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using an acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol to support HARQ operations.

[0267] For transmission from the second communication device 450 to the first communication device 410, a data source 467 is used in the second communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions in the first communication device 410 described in the DL, the controller / processor 459 implements header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. The transmit processor 468 then modulates the generated parallel streams into multi-carrier / single-carrier symbol streams that undergo analog precoding / beamforming operations in the multi-antenna transmit processor 457 and are then provided to different antennas 452 via transmitters 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides the radio frequency symbol stream to the antenna 452.

[0268] During transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receiving functions at the second communication device 450 described for transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal via its corresponding antenna 420, converts the received radio frequency signal to a baseband signal, and provides the baseband signal to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. The controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 that stores program codes and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides multiplexing between transmission and logical channels, packet reassembly, decoding, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0269] In one embodiment, the second communication device 450 includes at least one processor and at least one memory, the at least one memory including computer program code, and the at least one memory and the computer program code are at least The second communication device 450 is configured to receive first CSI configuration information, receive first signaling, receive first RS resources, and transmit a first CSI report, the first CSI configuration information being used to indicate the first RS resources, measurements on the first RS resources being used to generate the first CSI report, and the first CSI configuration information being used to indicate M index sets, where M is a positive integer greater than 1, and any index set among the M index sets includes at least one index group, and any index group within the M index sets includes at least one index group. the first signaling is used to determine the first port group; the first CSI report includes a first rank and a first CQI; the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group; the first index group is an index group in the first index set whose corresponding rank is equal to the first rank; and the first index set depends on the first port group.

[0270] In one embodiment, the second communication device 450 includes a memory having a computer-readable instruction program stored therein, the computer-readable instruction program, when executed by at least one processor, generating actions, the actions including receiving first CSI configuration information, receiving first signaling, receiving first RS resources, and transmitting a first CSI report, the first CSI configuration information being used to indicate the first RS resources, measurements on the first RS resources being used to generate the first CSI report, the first CSI configuration information being used to indicate M index sets, M being a positive integer greater than 1, and any index set among the M index sets indicating at least one index set. the first signaling is used to determine the first port group; the first CSI report includes a first rank and a first CQI; calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group; the first index group is an index group in the first index set whose corresponding rank is equal to the first rank; and the first index set depends on the first port group.

[0271] In one embodiment, the first communications device 410 comprises at least one processor and at least one memory, the at least one memory comprising computer program code, the at least one memory and the computer program code configured for use by the at least one processor. The first communication device 410 apparatus at least transmits first CSI configuration information, transmits first signaling, transmits first RS resources, and receives a first CSI report, the first CSI configuration information is used to indicate the first RS resources, measurements on the first RS resources are used to generate the first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, and the first signaling is used to indicate the first port group. the first CSI report includes a first rank and a first CQI, the calculation of the first CQI is conditional on a port of the first RS resource indicated by a first index group, the first index group is an index group in a first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0272] In one embodiment, the first communication device 410 includes a memory having a computer-readable instruction program stored therein, the computer-readable instruction program, when executed by at least one processor, generating actions, the actions including transmitting first CSI configuration information, transmitting first signaling, transmitting first RS resources, and receiving a first CSI report, the first CSI configuration information being used to indicate the first RS resources, measurements on the first RS resources being used to generate the first CSI report, the first CSI configuration information being used to indicate M index sets, M being a positive integer greater than 1, and any index set among the M index sets being associated with at least one index. the first signaling is used to determine the first port group; the first CSI report includes the first rank and a first CQI; the calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group; the first index group is an index group in the first index set whose corresponding rank is equal to the first rank; and the first index set depends on the first port group.

[0273] In one embodiment, the first node in this application includes the second communication device 450 .

[0274] In one embodiment, the second node in this application includes the first communication device 410 .

[0275] In one embodiment, at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} is used in the present application to receive the first CSI configuration information, and at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476} is used in the present application to transmit the first CSI configuration information.

[0276] In one embodiment, at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} is used to receive the first signaling in the present application, and at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476} is used to transmit the first signaling in the present application.

[0277] In one embodiment, at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} receives a first RS resource, as described in this application. The first RS resource is used to receive the first RS resource, and at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476} is used to transmit the first RS resource in this application.

[0278] In one embodiment, at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} is used in the present application to receive at least one RS resource other than the first RS resource in the first RS resource group, and at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476} is used in the present application to transmit at least one RS resource other than the first RS resource in the first RS resource group.

[0279] In one embodiment, at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} is used in the present application to receive the second RS resource group, and at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476} is used in the present application to transmit the second RS resource group.

[0280] In one embodiment, at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, and memory 460} is used to transmit the first CSI report in this application, and at least one of {antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, and memory 476} is used to receive the first CSI report in this application.

[0281] Embodiment 5 Embodiment 5 illustrates a flowchart of wireless transmission according to an embodiment of the present application, as shown in Figure 5. In Figure 5, a first node U01 and a second node N02 are two communication nodes transmitting over an air interface, respectively, and the steps in boxes F1 and F2 are optional.

[0282] The first node U01 receives first CSI configuration information in step S5101, receives first signaling in step S5102, receives first RS resources in step S5103, receives at least one RS resource other than the first RS resource in the first RS resource group in step S5104, receives a second RS resource group in step S5105, and transmits a first CSI report in step S5106.

[0283] The second node N02 transmits first CSI configuration information in step S5201, transmits first signaling in step S5202, transmits first RS resources in step S5103, transmits at least one RS resource other than the first RS resource in the first RS resource group in step S5104, transmits the second RS resource group in step S5105, and receives the first CSI report in step S5106.

[0284] In embodiment 5, the first CSI configuration information is used to indicate the first RS resource. and measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, the first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0285] In one embodiment, a first RS resource group is configured for channel measurement, a second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is used to indicate a first RS resource from the first RS resource group, and a first rank and a first CQI are obtained based on the first RS resource index.

[0286] In one embodiment, there is a step in box F1.

[0287] In one embodiment, there is a step in box F2.

[0288] In one embodiment, the step in box F1 is not present.

[0289] In one embodiment, the step in box F2 is not present.

[0290] In one embodiment, the first RS resource group includes N RS resources for channel measurement, the second RS resource group includes N RS resources for interference measurement, and the N RS resources for channel measurement correspond one-to-one to the N RS resources for interference measurement.

[0291] As a subembodiment of the above embodiment, when the first given RS resource is any RS resource among the N RS resources for channel measurement, and the first given RS resource is used for channel measurement, only one RS resource corresponding to the first given RS resource among the N RS resources for interference measurement is used for interference measurement.

[0292] In one embodiment, the first RS resource index is a CRI.

[0293] In one embodiment, the first RS resource index is used to identify a first RS resource in a first RS resource group.

[0294] In one embodiment, the first RS resource index includes a position of the first RS resource within the first RS resource group.

[0295] In one embodiment, the first RS resource index includes an index of the first RS resource in the first RS resource group.

[0296] In one embodiment, the first rank and the first CQI are: The RS resource is generated based on the channel measurement performed and the interference measurement performed on the second RS resource, where the second RS resource belongs to the second RS resource group.

[0297] In one embodiment, the first rank and the first CQI are generated based on a channel measurement performed on a first RS resource and an interference measurement performed on a second RS resource and a third RS resource, where the second RS resource belongs to a second RS resource group.

[0298] In one embodiment, the first rank and the first CQI are generated based on a channel measurement performed on a first RS resource and an interference measurement performed on a second RS resource and a third RS resource, where the second RS resource belongs to a second RS resource group and the third RS resource belongs to a third RS resource group.

[0299] In one embodiment, the phrase "the first rank and the first CQI are obtained based on the first RS resource index" means that the first RS resource index is used to indicate a first RS resource from a first RS resource group, and the first rank and the first CQI are obtained based on channel information generated by measurements on the first RS resource.

[0300] In one embodiment, the phrase "the first rank and the first CQI are obtained based on the first RS resource index" means that the first RS resource index is used to indicate a first RS resource from a first RS resource group, and the first rank and the first CQI are obtained based on channel measurements performed on the first RS resource.

[0301] In one embodiment, the phrase "the first rank and the first CQI are obtained based on the first RS resource index" means that the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the first rank and the first CQI are obtained based only on the first RS resource in the first RS resource group.

[0302] In one embodiment, the phrase "the first rank and the first CQI are obtained based on the first RS resource index" means that the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the calculation of the first rank and the first CQI relates only to the first RS resource in the first RS resource group.

[0303] Embodiment 6 Embodiment 6, as shown in FIG. 6, illustrates a schematic diagram of a first index set and a first port group according to an embodiment of the present application.

[0304] In embodiment 6, the first port group is one of M1 port groups, M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set corresponding to the first port group among the M index sets, and the first rank is less than or equal to the number of ports included in the first port group.

[0305] In one embodiment, the port of the first RS resource indicated by any index in the first index group is a port in the first port group.

[0306] In one embodiment, the port of the first RS resource indicated by any index in the first index set is a port in the first port group.

[0307] In one embodiment, the first port group includes the non-zero power ports of the first RS resource.

[0308] In one embodiment, at least one port among all ports of the first RS resource other than the first port group is at zero power.

[0309] In one embodiment, among all ports of the first RS resource, any port other than the first port group is at zero power.

[0310] In one embodiment, the first port group includes active ports of the first RS resource.

[0311] Embodiment 7 Embodiment 7, as shown in FIG. 7, illustrates a schematic diagram of M1 port groups and corresponding index sets according to one embodiment of the present application.

[0312] In the seventh embodiment, the number of index groups included in the index set corresponding to the M1 port groups is equal to or less than the number of ports included in the M1 port groups.

[0313] In one embodiment, the reference port group is any port group among the M1 port groups, the reference port group corresponds to a reference index set among the M index sets, and the number of index groups included in the reference index set is less than or equal to the number of ports included in the reference port group.

[0314] Typically, the reference port group includes ports of the first RS resource indicated by each index in the first index group.

[0315] Typically, at least one port in the reference port group is associated with the first port group.

[0316] In one embodiment, each port in the reference port group is associated with a first port group.

[0317] In one embodiment, some ports in the reference port group are associated with the first port group.

[0318] Embodiment 8 Embodiment 8, as shown in FIG. 8, illustrates a schematic diagram of the relationship between a first index group and a first rank according to an embodiment of the present application.

[0319] In embodiment 8, the first index set includes R index groups, and the R index groups correspond to R ranks, respectively. The R ranks are different for each comparison partner, and the first rank is one of the R ranks, and R is greater than or equal to 1. is also a large positive integer, and the first index group is the index group corresponding to the first rank among the R index groups.

[0320] In one embodiment, the ranks corresponding to any two of the R index groups are different.

[0321] In one embodiment, the R ranks are 1, . . . , R, respectively.

[0322] In one embodiment, the R ranks are R distinct positive integers less than or equal to R.

[0323] Embodiment 9 Embodiment 9, as shown in FIG. 9, illustrates a schematic diagram of the relationship between a first index group and a first rank according to another embodiment of the present application.

[0324] In embodiment 9, the first index set includes R index groups, each of the R index groups corresponding to one of R ranks, the R ranks being different for each comparison partner, the first rank being one of the R ranks, R being a positive integer greater than 1, R being a positive integer greater than 1, and the first index group being an index group among the R index groups whose corresponding rank is equal to the first rank.

[0325] In one embodiment, R is less than R.

[0326] In one embodiment, R1 is different from R.

[0327] In one embodiment, R1 is greater than R.

[0328] In one embodiment, R1 is equal to R.

[0329] In one embodiment, among the R index groups, there are two index groups with the same corresponding rank.

[0330] In one embodiment, among the R index groups, there are two index groups each corresponding to a different rank.

[0331] In one embodiment, the ranks corresponding to any two of the R index groups are different.

[0332] Embodiment 10 Embodiment 10, as shown in FIG. 10, illustrates a schematic diagram of M index sets according to one embodiment of the present application.

[0333] In embodiment 10, there are two index groups that belong to two index sets among the M index sets and correspond to the same rank.

[0334] In one embodiment, the number of index groups included in the M index sets is equal to R, where R is a positive integer greater than 1. The R index groups in any index set among the M index sets correspond to R ranks, and the R ranks differ for each comparison.

[0335] Embodiment 11 Embodiment 11, as shown in FIG. 11, illustrates a schematic diagram of a first port group according to an embodiment of the present application.

[0336] In embodiment 11, the first port group includes a non-zero power port of the first RS resource.

[0337] In one embodiment, the first RS resource includes at least one zero-power port and at least one non-zero-power port.

[0338] Typically, the transmit power on a non-zero power port is non-zero, and the transmit power on a zero power port is zero.

[0339] Embodiment 12 Embodiment 12 illustrates a structural block diagram of a processing device used in a first node device according to an embodiment of the present application, as shown in Fig. 12. In Fig. 12, a processing device 1200 in the first node device includes a first receiver 1201 and a first transmitter 1202.

[0340] In one embodiment, the first node device is a user equipment.

[0341] In one embodiment, the first node device is a relay node device.

[0342] In one embodiment, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, and data source 467} in embodiment 4.

[0343] In one embodiment, the first transmitter 1202 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, and data source 467} in embodiment 4.

[0344] The first receiver 1201 receives first CSI configuration information, receives first signaling, and receives first RS resources;

[0345] The first transmitter 1202 transmits a first CSI report.

[0346] In embodiment 12, first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index group in the M index sets corresponds to a rank, first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, and the first index group is used to generate a first CSI report whose corresponding rank is equal to the first rank. The first index set depends on the first port group.

[0347] In one embodiment, the first port group is one of M1 port groups, where M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

[0348] In one embodiment, the number of index groups included in the index set corresponding to the M1 port groups is equal to or less than the number of ports included in the M1 port groups.

[0349] In one embodiment, the first index set includes R index groups, each of which corresponds to R ranks, and the R ranks differ for each comparison partner, the first rank is one of the R ranks, R is a positive integer greater than 1, and the first index group is the index group corresponding to the first rank among the R index groups.

[0350] In one embodiment, there are two groups of indexes that belong to two of the M index sets and correspond to the same rank.

[0351] In one embodiment, the first port group includes the non-zero power ports of the first RS resource.

[0352] In one embodiment, the first receiver 1201 receives at least one RS resource other than a first RS resource in a first RS resource group, receives a second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is used to indicate a first RS resource from the first RS resource group, and a first rank and a first CQI are obtained using the first RS resource index as a condition.

[0353] Embodiment 13 Embodiment 13 illustrates a structural block diagram of a processing device in a second node device according to an embodiment of the present application, as shown in Figure 13. In Figure 13, a processing device 1300 in the second node device includes a second transmitter 1301 and a second receiver 1302.

[0354] In one embodiment, the second node device is a base station.

[0355] In one embodiment, the second node device is a user equipment.

[0356] In one embodiment, the second node device is a relay node device.

[0357] In one embodiment, the second transmitter 1301 is the antenna 420 in the fourth embodiment. , transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476}.

[0358] In one embodiment, the second receiver 1302 includes at least one of {antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, and memory 476} in embodiment 4.

[0359] The second transmitter 1301 transmits the first CSI configuration information, transmits the first signaling, and transmits the first RS resource.

[0360] The second receiver 1302 receives the first CSI report.

[0361] In embodiment 13, first CSI configuration information is used to indicate a first RS resource, measurements on the first RS resource are used to generate a first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, any index group in the M index sets includes at least one index, any index in the M index sets indicates the first RS resource. The first signaling is used to indicate a port of a source, and any index group in the M index sets corresponds to a rank, and the first signaling is used to determine a first port group, and the first CSI report includes a first rank and a first CQI, and calculation of the first CQI is conditional on a port of a first RS resource indicated by the first index group, and the first index group is an index group in the first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

[0362] In one embodiment, the first port group is one of M1 port groups, where M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

[0363] In one embodiment, the number of index groups included in the index set corresponding to the M1 port groups is equal to or less than the number of ports included in the M1 port groups.

[0364] In one embodiment, the first index set includes R index groups, each of which corresponds to R ranks, and the R ranks differ for each comparison partner, the first rank is one of the R ranks, R is a positive integer greater than 1, and the first index group is the index group corresponding to the first rank among the R index groups.

[0365] In one embodiment, there are two groups of indexes that belong to two of the M index sets and correspond to the same rank.

[0366] In one embodiment, the first port group includes the non-zero power ports of the first RS resource.

[0367] In one embodiment, the second transmitter 1301 transmits at least one RS resource other than a first RS resource in a first RS resource group, transmits a second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is used to indicate a first RS resource from the first RS resource group, and a first rank and a first CQI are obtained using the first RS resource index as a condition.

[0368] Those skilled in the art will understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, which can be stored in a computer-readable storage medium such as a read-only memory, a hard disk, or a CD. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Therefore, each module unit in the above embodiments can be implemented in the form of hardware or a software function module, and the present application is not limited to any particular form of combination of software and hardware. User equipment, terminals, and UEs in the present application include, but are not limited to, drones, communication modules on drones, remotely piloted aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebook computers, vehicle-mounted communication devices, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (machine-based communication) terminals, eMTC (extended MTC) terminals, data cards, Internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. Base stations or system devices in this application include, but are not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNBs (NR Node Bs), TRPs (Transmit Receiving Points), and other wireless communication devices.

[0369] The above are only preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any changes and modifications made based on the embodiments described herein, if they can achieve the same partial or complete technical effect, should be considered obvious and fall within the protection scope of the present invention.

Claims

1. A first node device used for wireless communication, a first receiver configured to receive first CSI configuration information, the first CSI configuration information being IE CSI-ReportConfig, and first signaling, the first signaling being MAC CE signaling or DCI signaling, and to receive first RS resources, wherein the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, the first CSI resource configuration is used to indicate the first RS resources, the second CSI resource configuration is used to indicate second RS resources, the first RS resources are used for channel measurement, and the second RS resources are used for interference measurement; a first transmitter configured to transmit a first CSI report, wherein a first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a CSI-RS resource index (CRI), an RI, and a CQI; The first CSI configuration information is used to indicate the first RS resource, measurements on the first RS resource are used to generate the first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, the number of index groups included in any index set among the M index sets is less than or equal to the number of ports of the first RS resource, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index in the M index sets is a non-negative integer, and any index group in the M index sets is less than or equal to the number of ports of the first RS resource. a first node device, wherein each index group corresponds to a rank, the ranks corresponding to any two index groups belonging to the same index set among the M index sets are different, the number of indexes included in any index group in the M index sets is equal to the corresponding rank, the rank corresponding to any index group in the M index sets is less than or equal to the number of ports of the first RS resource, the first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in a first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

2. 2. The first node device of claim 1, wherein the first CSI setting information includes M pieces of lower information, each of the M pieces of lower information including the M index sets, and names of the M pieces of lower information all include non-PMI-PortIndication, or names of the M pieces of lower information all include PortIndexFor8Ranks.

3. The first node device according to claim 1 or 2, wherein the first CSI report is a non-PMI-based CSI report, or the reporting amount of the first CSI report does not include PMI.

4. Any index in the M index sets is a first RS resource. The first node device according to any one of claims 1 to 3, wherein the number of ports is a non-negative integer less than the number of ports.

5. A first node device according to any one of claims 1 to 4, wherein the port of the first RS resource indicated by any index in the first index set is a port in the first port group.

6. The first node device according to any one of claims 1 to 5, wherein the first rank is equal to or less than the number of ports included in the first port group.

7. 7. The first node device of claim 1, wherein the first signaling is used to indicate the first port group, or a field in the first signaling is used to determine the first port group, or the first signaling is used to indicate a first RS resource set, the first port group depends on the first RS resource set, and the first port group belongs to a port of the first RS resource set.

8. 8. The first node device of claim 1, wherein the first port group is one of M1 port groups, M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

9. The first node device of claim 8 , wherein the number of index groups included in the index set corresponding to each of the M1 port groups is less than or equal to the number of ports included in the M1 port groups.

10. 10. The first node device of claim 1, wherein the first index set includes R index groups, each of the R index groups corresponding to R ranks, the R ranks differ for each comparison partner, the first rank is one of the R ranks, R is a positive integer greater than 1, and the first index group is an index group corresponding to the first rank among the R index groups.

11. The first node device according to any one of claims 1 to 10, wherein there are two index groups each belonging to two index sets among the M index sets and corresponding to the same rank.

12. The first node device of any one of claims 1 to 11, wherein the first port group includes non-zero power ports of the first RS resource.

13. The first node device: receiving at least one RS resource other than the first RS resource in the first RS resource group; configured to receive a second RS resource group; 13. The first node device of claim 1, wherein the first CSI resource configuration is used to indicate the first RS resource group, the first RS resource belonging to the first RS resource group, the second CSI resource configuration is used to indicate the second RS resource group, the second RS resource belonging to the second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is a CRI, the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the first rank and the first CQI are obtained based on the first RS resource index.

14. The first node device of any one of claims 1 to 13, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group includes a precoder of the port of the first RS resource indicated by the first index group being an identity matrix.

15. 15. The first node device of claim 1, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group comprises the first node calculating the first CQI based on measurements for the port of the first RS resource indicated by the first index group.

16. The first node device according to any one of claims 1 to 15, wherein all indexes in any index group in the M index sets are arranged in layer order.

17. The first node device of any one of claims 1 to 16, wherein the first CSI configuration information is used to indicate the first CSI resource configuration, and the first CSI resource configuration is used to indicate the first RS resource.

18. a second node device used for wireless communication, a second transmitter configured to transmit first CSI configuration information, the first CSI configuration information being an IE CSI-ReportConfig, and to transmit first signaling, the first signaling being MAC CE signaling or DCI signaling, and to transmit first RS resources, wherein the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, the first CSI resource configuration is used to indicate the first RS resources, the second CSI resource configuration is used to indicate second RS resources, the first RS resources are used for channel measurement, and the second RS resources are used for interference measurement; a second receiver configured to receive a first CSI report, wherein a first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a CSI-RS resource index (CRI), an RI, and a CQI; The first CSI configuration information is used to indicate the first RS resource, measurements on the first RS resource are used to generate the first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, and the M index sets are used to indicate M index sets, M is a positive integer greater than 1, and any index set among the M index sets includes at least one index group. The number of index groups included in any index set among the M index sets is less than or equal to the number of ports of the first RS resource, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index in the M index sets is a non-negative integer, any index group in the M index sets corresponds to a rank, the ranks corresponding to any two index groups belonging to the same index set among the M index sets are different, and any index group in the M index sets a second node device, wherein the number of indexes included in the loop is equal to the corresponding rank, and the rank corresponding to any index group in the M index sets is less than or equal to the number of ports of the first RS resource, the first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in a first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

19. The second node device of claim 18, wherein the first CSI setting information includes M pieces of lower information, each of the M pieces of lower information includes the M index sets, and names of the M pieces of lower information all include non-PMI-PortIndication, or names of the M pieces of lower information all include PortIndexFor8Ranks.

20. The second node device of claim 18 or 19, wherein the first CSI report is a non-PMI-based CSI report, or the reporting amount of the first CSI report does not include PMI.

21. The second node device of any one of claims 18 to 20, wherein any index in the M index sets is a non-negative integer less than the number of ports of the first RS resource.

22. A second node device according to any one of claims 18 to 21, wherein the port of the first RS resource indicated by any index in the first index set is a port in the first port group.

23. The second node device according to any one of claims 18 to 22, wherein the first rank is equal to or less than the number of ports included in the first port group.

24. 24. The second node device of claim 18, wherein the first signaling is used to indicate the first port group, or a field in the first signaling is used to determine the first port group, or the first signaling is used to indicate a first RS resource set, the first port group depends on the first RS resource set, and the first port group belongs to a port of the first RS resource set.

25. The first port group is one of M1 port groups, where M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups are different for each comparison partner, and any port group among the M1 port groups corresponds to one of the M index sets, and any index among the M index sets 25. The second node device of claim 18, wherein a first index set corresponds to one or more port groups among the M1 port groups, the first index set is an index set corresponding to the first port group among the M index sets, and the first rank is less than or equal to the number of ports included in the first port group.

26. The second node device of claim 25, wherein the number of index groups included in the index set corresponding to each of the M1 port groups is less than or equal to the number of ports included in the M1 port groups.

27. The second node device of any one of claims 18 to 26, wherein the first index set includes R index groups, the R index groups respectively corresponding to R ranks, the R ranks differ for each comparison partner, the first rank is one of the R ranks, R is a positive integer greater than 1, and the first index group is an index group corresponding to the first rank among the R index groups.

28. The second node device of any one of claims 18 to 27, wherein there are two index groups each belonging to two index sets among the M index sets and corresponding to the same rank.

29. The second node device of any one of claims 18 to 28, wherein the first port group includes non-zero power ports of the first RS resource.

30. the second transmitter configured to transmit at least one RS resource other than the first RS resource in the first RS resource group and to transmit a second RS resource group; 30. The second node device of claim 18, wherein the first CSI resource configuration is used to indicate the first RS resource group, the first RS resource belonging to the first RS resource group, the second CSI resource configuration is used to indicate the second RS resource group, the second RS resource belonging to the second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is a CRI, the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the first rank and the first CQI are obtained based on the first RS resource index.

31. The second node device of any one of claims 18 to 30, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group includes a precoder of the port of the first RS resource indicated by the first index group being an identity matrix.

32. The second node device of any one of claims 18 to 31, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group includes the first node calculating the first CQI based on measurements for the port of the first RS resource indicated by the first index group.

33. All indexes in any index group in the M index sets The second node device according to any one of claims 18 to 32, wherein the nodes are arranged in layer order.

34. The second node device of any one of claims 18 to 33, wherein the first CSI configuration information is used to indicate the first CSI resource configuration, and the first CSI resource configuration is used to indicate the first RS resource.

35. 1. A method for use in a first node for wireless communication, comprising: receiving first CSI configuration information, the first CSI configuration information being IE CSI-ReportConfig; receiving first signaling, the first signaling being MAC CE signaling or the first signaling being DCI signaling; and receiving first RS resources, wherein the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, the first CSI resource configuration is used to indicate the first RS resources, the second CSI resource configuration is used to indicate second RS resources, the first RS resources are used for channel measurement, and the second RS resources are used for interference measurement; transmitting a first CSI report, wherein a first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a CSI-RS resource index (CRI), an RI, and a CQI; The first CSI configuration information is used to indicate the first RS resource, measurements on the first RS resource are used to generate the first CSI report, the first CSI configuration information is used to indicate M index sets, M is a positive integer greater than 1, any index set among the M index sets includes at least one index group, the number of index groups included in any index set among the M index sets is less than or equal to the number of ports of the first RS resource, any index group in the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index in the M index sets is a non-negative integer, any index group in the M index sets corresponds to a rank, and the M index sets the ranks corresponding to any two index groups belonging to the same index set in an index set are different, the number of indexes included in any index group in the M index sets is equal to the corresponding rank, the rank corresponding to any index group in the M index sets is less than or equal to the number of ports of the first RS resource, any index group in the M index sets corresponds to a rank, the first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in a first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

36. 36. The method of claim 35, wherein the first CSI configuration information includes M pieces of lower information, each of the M pieces of lower information including the M index sets, and names of the M pieces of lower information all include non-PMI-PortIndication, or names of the M pieces of lower information all include PortIndexFor8Ranks.

37. 37. The method of claim 35 or 36, wherein the first CSI report is a non-PMI-based CSI report, or the reporting quantity of the first CSI report does not include PMI.

38. The method of any one of claims 35 to 37, wherein any index in the set of M indexes is a non-negative integer less than the number of ports of the first RS resource.

39. 39. The method of claim 35, wherein the port of the first RS resource indicated by any index in the first index set is a port in the first port group.

40. The method of any one of claims 35 to 39, wherein the first rank is less than or equal to the number of ports included in the first port group.

41. 41. The method of claim 35, wherein the first signaling is used to indicate the first port group, or a field in the first signaling is used to determine the first port group, or the first signaling is used to indicate a first RS resource set, the first port group depends on the first RS resource set, and the first port group belongs to a port of the first RS resource set.

42. 42. The method of claim 35, wherein the first port group is one of M1 port groups, M1 is a positive integer greater than 1, each of the M1 port groups includes at least one port of the first RS resource, the M1 port groups differ from one another in comparison, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

43. 43. The method of claim 42, wherein the number of index groups included in the index set corresponding to each of the M1 port groups is less than or equal to the number of ports included in the M1 port groups.

44. 44. The method of claim 35, wherein the first index set includes R index groups, the R index groups respectively corresponding to R ranks, the R ranks being different for each comparison partner, the first rank being one of the R ranks, R being a positive integer greater than 1, and the first index group being the index group corresponding to the first rank among the R index groups.

45. The method of any one of claims 35 to 44, wherein there are two groups of indexes, each belonging to two sets of indexes among the M sets of indexes and corresponding to the same rank.

46. The method of any one of claims 35 to 45, wherein the first port group includes non-zero power ports of the first RS resource.

47. receiving at least one RS resource other than the first RS resource in the first RS resource group; receiving a second RS resource group; 47. The method of claim 35, wherein the first CSI resource configuration is used to indicate the first RS resource group, the first RS resource belonging to the first RS resource group, the second CSI resource configuration is used to indicate the second RS resource group, the second RS resource belonging to the second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is a CRI, the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the first rank and the first CQI are obtained based on the first RS resource index.

48. 48. The method of claim 35, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group comprises a precoder of the port of the first RS resource indicated by the first index group being an identity matrix.

49. 49. The method of claim 35, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group comprises the first node calculating the first CQI based on measurements for the port of the first RS resource indicated by the first index group.

50. 50. The method of any one of claims 35 to 49, wherein all indexes in any index group in the M index sets are arranged in layer-order order.

51. 51. The method according to claim 35, wherein the first CSI configuration information is used to indicate the first CSI resource configuration, and the first CSI resource configuration is used to indicate the first RS resource.

52. 1. A method for use in a second node for wireless communication, comprising: transmitting first CSI configuration information, where the first CSI configuration information is IE CSI-ReportConfig; transmitting first signaling, where the first signaling is MAC CE signaling or the first signaling is DCI signaling; and transmitting first RS resources, where the first CSI configuration information is used to indicate a first CSI resource configuration and a second CSI resource configuration, where the first CSI resource configuration is used to indicate the first RS resources, where the second CSI resource configuration is used to indicate second RS resources, where the first RS resources are used for channel measurement, and where the second RS resources are used for interference measurement; receiving a first CSI report, wherein a first CSI report configuration includes a reporting amount of the first CSI report, and the reporting amount of the first CSI report includes a CSI-RS resource index (CRI), an RI, and a CQI; The first CSI configuration information is used to indicate the first RS resource, and measurements on the first RS resource are used to generate the first CSI report. the first CSI configuration information is used to indicate M index sets, M being a positive integer greater than 1, any index set among the M index sets includes at least one index group, the number of index groups included in any index set among the M index sets is less than or equal to the number of ports of the first RS resource, any index group among the M index sets includes at least one index, any index in the M index sets is used to indicate a port of the first RS resource, any index in the M index sets is a non-negative integer, any index group in the M index sets corresponds to a rank, and the same index set in the M index sets the number of indexes included in any index group in the M index sets is equal to the corresponding rank, the rank corresponding to any index group in the M index sets is less than or equal to the number of ports of the first RS resource, the first signaling is used to determine a first port group, the first CSI report includes a first rank and a first CQI, calculation of the first CQI is conditional on the port of the first RS resource indicated by the first index group, the first index group is an index group in a first index set whose corresponding rank is equal to the first rank, and the first index set depends on the first port group.

53. 53. The method of claim 52, wherein the first CSI configuration information includes M pieces of lower information, each of the M pieces of lower information including the M index sets, and names of the M pieces of lower information all include non-PMI-PortIndication, or names of the M pieces of lower information all include PortIndexFor8Ranks.

54. 54. The method of claim 52 or 53, wherein the first CSI report is a non-PMI-based CSI report, or the reporting quantity of the first CSI report does not include PMI.

55. The method of any one of claims 52 to 54, wherein any index in the set of M indexes is a non-negative integer less than the number of ports of the first RS resource.

56. 56. A method according to any one of claims 52 to 55, wherein the port of the first RS resource indicated by any index in the first index set is a port in the first port group.

57. 57. The method of any one of claims 52 to 56, wherein the first rank is less than or equal to the number of ports included in the first port group.

58. 58. The method of claim 52, wherein the first signaling is used to indicate the first port group, or a field in the first signaling is used to determine the first port group, or the first signaling is used to indicate a first RS resource set, the first port group depends on the first RS resource set, and the first port group belongs to a port of the first RS resource set.

59. The first port group is one of M1 port groups, where M1 is a positive integer greater than 1, and each of the M1 port groups is connected to the first RS link.

59. The method of claim 52, wherein the M1 port groups are different for each comparison partner, any port group among the M1 port groups corresponds to one of the M index sets, any index set among the M index sets corresponds to one or more port groups among the M1 port groups, the first index set is an index set among the M index sets that corresponds to the first port group, and the first rank is less than or equal to the number of ports included in the first port group.

60. 60. The method of claim 59, wherein the number of index groups included in the index set corresponding to each of the M1 port groups is less than or equal to the number of ports included in the M1 port groups.

61. 61. The method of any one of claims 52 to 60, wherein the first index set includes R index groups, the R index groups corresponding to R ranks, respectively, the R ranks being different for each comparison partner, the first rank being one of the R ranks, R being a positive integer greater than 1, and the first index group being the index group corresponding to the first rank among the R index groups.

62. The method of any one of claims 52 to 61, wherein there are two groups of indexes, each belonging to two sets of indexes among the M sets of indexes and corresponding to the same rank.

63. The method of any one of claims 52 to 62, wherein the first port group includes non-zero power ports of the first RS resource.

64. transmitting at least one RS resource other than the first RS resource in the first RS resource group; transmitting a second RS resource group; 64. The method of claim 52, wherein the first CSI resource configuration is used to indicate the first RS resource group, the first RS resource belonging to the first RS resource group, the second CSI resource configuration is used to indicate the second RS resource group, the second RS resource belonging to the second RS resource group, the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI report includes a first RS resource index, the first RS resource index is a CRI, the first RS resource index is used to indicate the first RS resource from the first RS resource group, and the first rank and the first CQI are obtained based on the first RS resource index.

65. 65. The method of claim 52, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group comprises a precoder of the port of the first RS resource indicated by the first index group being an identity matrix.

66. 66. The method according to any one of claims 52 to 65, wherein the calculation of the first CQI conditional on the port of the first RS resource indicated by the first index group comprises a first node calculating the first CQI based on measurements for the port of the first RS resource indicated by the first index group. The method described.

67. A method according to any one of claims 52 to 66, wherein all indices in any group of indexes in the M sets of indexes are arranged in layer order.

68. 68. The method of claim 52, wherein the first CSI configuration information is used to indicate the first CSI resource configuration, and the first CSI resource configuration is used to indicate the first RS resource.

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