Method and apparatus in a node used for wireless communication - Patents.com

Abstract

Disclosed herein are a method and apparatus in a node used for wireless communication, wherein a first node receives first CSI configuration information, receives first signaling, receives first RS resources, and transmits first CSI reporting, wherein R index groups correspond one-to-one to R ranks, respectively, the first signaling is used to determine a first port group, the first CSI reporting includes the first rank and a first CQI, the first index group is an index group among the R index groups corresponding to the first rank, a reference port group includes all ports of the first RS resources indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, and the first rank is selected only from ranks among the R ranks that satisfy a first condition, the first condition including ports of the first RS resources indicated by at least one index in the corresponding index group associated with the first port group.

Description

[Technical Field]

[0001] The present application relates to a transmission method and a transmission apparatus in a wireless communication system, and in particular to a transmission method and a transmission apparatus for wireless signals 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 support multi-antenna processing at the base station. In 5G New Radio (NR) systems, CSI reporting includes at least one of the following: CRI (CSI-RS Resource Index), RI (Rank Indicator), PMI (Precoding Matrix Index), and CQI (Channel Quality Indicator). Research on network energy efficiency began in NR R (Release, Version)-18 and includes several key techniques, such as dynamic adaptation of spatial elements, such as updating active transceiver chains, active antenna panels, and CSI-RS settings. Summary of the Invention

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

[0004] In view of the above-mentioned problems, the present application discloses a solution. In the description of the present application, a multi-antenna panel is only used as a typical application scenario or application example, and it should be noted that the present application can also be applied to the application scenario of a single antenna panel, and furthermore, using 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. Unless a contradiction occurs, the embodiments and features in the embodiments of any node in the present application can be applied to any other node. Unless a contradiction occurs, 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 refers to the definitions in the 3GPP specification protocol TS36 series.

[0006] In one embodiment, the interpretation of terms in this application refers to the definitions in the 3GPP specification protocol TS38 series.

[0007] In one embodiment, the interpretation of terms in this application refers to the definitions in the 3GPP specification protocol TS37 series.

[0008] In one embodiment, the interpretation of terms in this application refers to the definitions of IEEE (Institute of Electrical and Electronics Engineers) specification protocols.

[0009] The present application discloses a method in a first node used for wireless communication, the method comprising: receiving first CSI configuration information, receiving first signaling, and receiving first RS resources; transmitting a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group in the R index groups includes at least one index, any index in the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, and the first CSI reporting is used. includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0010] In one embodiment, the problem solved by the present application includes that CSI reporting is generated based on measurements of RS resources.

[0011] According to one aspect of the present application, the method is characterized in that the first condition includes ports of a first RS resource indicated by each index in a corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

[0012] According to one aspect of the present application, the method is characterized in that the first CQI is calculated using as a condition all ports in a reference port group that are associated only with the first port group.

[0013] According to one aspect of the present application, the method is characterized in that the number of ports included in the reference port group is equal to a first rank, the target port group includes all ports in the reference port group that are associated with the first port group, and the rank used to calculate the first CQI is equal to the number of ports included in the target port group.

[0014] According to one aspect of the present application, the method is characterized in that the rank used in calculating the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

[0015] According to one aspect of the present application, the method is characterized in that the first CSI reporting is transmitted only if at least one rank among the R ranks satisfies a first condition.

[0016] According to one aspect of the present application, the method comprises: receiving at least one RS resource other than the first RS resource in the first RS resource group; receiving a second RS resource group; The first RS resource group is configured for channel measurement, and the second RS resource group is configured for channel measurement. the first CSI reporting 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 the first rank and the first CQI are obtained using the first RS resource index as a condition.

[0017] The present application discloses a method in a second node used for wireless communication, the method comprising: transmitting first CSI configuration information, transmitting first signaling, and transmitting first RS resources; receiving a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group in the R index groups includes at least one index, any index in the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, and the first CSI reporting is used. includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0018] According to one aspect of the present application, the method is characterized in that the first condition includes ports of a first RS resource indicated by each index in a corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

[0019] According to one aspect of the present application, the method is characterized in that the first CQI is calculated using as a condition all ports in a reference port group that are associated only with the first port group.

[0020] According to one aspect of the present application, the method is characterized in that the number of ports included in the reference port group is equal to a first rank, the target port group includes all ports in the reference port group that are associated with the first port group, and the rank used to calculate the first CQI is equal to the number of ports included in the target port group.

[0021] According to one aspect of the present application, the method is characterized in that the rank used in calculating the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

[0022] According to one aspect of the present application, the method is characterized in that the first CSI reporting is transmitted only if at least one rank among the R ranks satisfies a first condition.

[0023] According to one aspect of the present application, the method comprises: transmitting at least one RS resource other than the first RS resource in the first RS resource group, and transmitting a second RS resource group; The method is characterized by the fact that a first RS resource group is configured for channel measurement, a second RS resource group is configured for interference measurement, the first CSI reporting 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 the first rank and the first CQI are obtained using the first RS resource index as a condition.

[0024] The present application discloses a first node device used for wireless communication, the first node device comprising: a first receiver that receives first CSI configuration information, receives first signaling, and receives first RS resources; a first transmitter configured to transmit a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group among the R index groups includes at least one index, any index among the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, and measurements on the first RS resource are used to generate a first CSI reporting, the first CSI configuration information is used to indicate R index groups, any index group among the R index groups includes at least one index, any index among the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, The reporting includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0025] The present application discloses a second node device used for wireless communication, the second node device comprising: a second transmitter configured to transmit first CSI configuration information, transmit first signaling, and transmit first RS resources; a second receiver configured to receive the first CSI reporting; a first CSI configuration information for indicating a first RS resource, measurements on the first RS resource being used to generate a first CSI reporting; the first CSI configuration information for indicating R index groups, any index group among the R index groups including at least one index, any index among the R index groups being used to indicate a port of the first RS resource, the R index groups corresponding to R ranks in a one-to-one correspondence, the R ranks being different for each comparison partner, R being a positive integer greater than 1; a first signaling for determining a first port group, the first CSI reporting including the first rank and a first CQI, the first rank being one of the R ranks, the first index group being an index group among the R index groups corresponding to the first rank, and a reference port group being indicated by the first index group; The first CQI includes all ports of the first RS resource, a first CQI is calculated using at least one port in the reference port group as a condition, and a first rank is selected from only ranks among the R ranks that satisfy a first condition, the first condition including ports of the first RS resource indicated by at least one index in a corresponding index group associated with the first port group.

[0026] In one embodiment, compared to conventional solutions, the present application has the following advantages: When CSI reporting is generated, different application scenarios are taken into account, such as different ports, different beams, different antennas, and different spatial characteristics.

[0027] Other features, objects, and advantages of the present application will become more apparent from reading the detailed description of non-limiting embodiments with reference to the following drawings. [Brief explanation of the drawings]

[0028] [Figure 1] 1 illustrates a flowchart of first CSI configuration information, first signaling, first RS resource, and first CSI reporting 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 shows a flowchart of transmission according to an embodiment of the present application. [Figure 6] 1 shows a schematic diagram of a first CQI according to an embodiment of the present application; [Figure 7] 1 shows a schematic diagram of a first CQI according to another embodiment of the present application; [Figure 8] 1 shows a schematic diagram of a first CQI according to another embodiment of the present application; [Figure 9] 1 shows a schematic diagram of a first CQI according to another embodiment of the present application; [Figure 10] 1 illustrates a schematic diagram of a first CSI reporting according to an embodiment of the present application; [Figure 11] FIG. 2 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application. [Figure 12] FIG. 2 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0029] The technical solutions of the present application are described in further detail below in conjunction with the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other unless a contradiction occurs.

[0030] Embodiment 1 Embodiment 1 illustrates a flowchart of first CSI configuration information, first signaling, first RS resource, and first CSI reporting according to an embodiment of the present application, as shown in Figure 1. In 100 shown in Figure 1, each box represents one step.

[0031] 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 sends first CSI reporting 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 reporting, and the first CSI configuration information indicates R index groups. the R index groups each include at least one index, ... the index group is an index group among the R index groups corresponding to a first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0032] In one embodiment, the first RS (Reference Signal) resource is configured by RRC signaling.

[0033] In one embodiment, the first RS resource is indicated by some or all of the domains in one RRC Information Element (IE).

[0034] In one embodiment, the first RS resource is triggered by physical layer signaling.

[0035] In one embodiment, the first RS resource is triggered by a first signaling.

[0036] In one embodiment, the first RS resource is triggered by DCI (Downlink Control Information) signaling.

[0037] In one embodiment, the time domain resource occupied by the first RS resource lags behind the time domain resource occupied by the first signaling.

[0038] In one embodiment, the first RS resource is a CSI-RS (Channel State Information-Reference Signal) resource or a SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resource.

[0039] In one embodiment, the first RS resource is a CSI-RS resource.

[0040] In one embodiment, the first RS resource is a non-zero power (NZP) CSI-RS resource.

[0041] In one embodiment, the first RS resource is a CSI-RS resource for channel measurement.

[0042] In one embodiment, the first RS resource is a CSI-RS resource or an SS / PBCH block resource for channel measurement.

[0043] Typically, the first RS resource is used for channel measurement.

[0044] In one embodiment, the first CSI configuration information is carried by higher layer signaling.

[0045] In one embodiment, the first CSI configuration information is carried by RRC signaling.

[0046] In one embodiment, the first CSI configuration information includes one or more RRC IEs.

[0047] In one embodiment, the first CSI configuration information is an IE CSI-ReportConfig.

[0048] In one embodiment, the name of the first CSI configuration information includes CSI-ReportConfig.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] As one subembodiment of the above embodiment, the first receiver receives a third RS resource.

[0054] As one subembodiment of the above embodiment, the method in the first node includes receiving a third RS resource.

[0055] 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.

[0056] In one embodiment, the first RS resource is a CSI-RS resource for channel measurement, the second RS resource is a CSI-IM resource, and the third RS resource is an NZP CSI-RS resource for interference measurement.

[0057] 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 resource belongs to the first RS resource group, the second CSI resource configuration is used to indicate a 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.

[0058] 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, the first RS resource belongs to the first RS resource group, the second CSI resource configuration is used to indicate the second RS resource group, the third CSI resource configuration is used to indicate 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.

[0059] As a subembodiment of the above embodiment, the first receiver receives a third RS resource group.

[0060] As one subembodiment of the above embodiment, the method in the first node includes receiving a third RS resource group.

[0061] In one embodiment, the second RS resource belongs to a second RS resource group.

[0062] In one embodiment, the third RS resource belongs to a third RS resource group.

[0063] In one embodiment, the first CSI configuration information includes a resourcesForChannelMeasurement domain, and the resourcesForChannelMeasurement domain included in the first CSI configuration information is used to indicate the first CSI resource configuration.

[0064] In one embodiment, the first CSI configuration information includes a csi-IM-ResourcesForInterference domain, and the csi-IM-ResourcesForInterference domain included in the first CSI configuration information is used to indicate the second CSI resource configuration.

[0065] In one embodiment, the first CSI configuration information includes an nzp-CSI-RS-ResourcesForInterference domain, and the nzp-CSI-RS-ResourcesForInterference domain included in the first CSI configuration information is used to indicate a third CSI resource configuration.

[0066] In one embodiment, the first RS resource group includes multiple CSI-RS resources for channel measurement.

[0067] In one embodiment, the first RS resource group includes multiple CSI-RS resources or SSB resources for channel measurement.

[0068] In one embodiment, the first RS resource group includes multiple CSI-RS resources or SSB resources.

[0069] In one embodiment, the first RS resource group includes a plurality of CSI-RS resources.

[0070] In one embodiment, the first RS resource group includes a plurality of NZP CSI-RS resources.

[0071] 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 (Channel State Information-Interference Measurement) resources.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] Typically, the first CSI reporting configuration includes a reporting amount of the first CSI reporting, and the reporting amount of the first CSI reporting includes a rank indicator (RI) and a channel quality indicator (CQI).

[0076] In one embodiment, the first CSI reporting is non-PMI (precoding matrix index) based CSI reporting.

[0077] In one embodiment, the first CSI reporting configuration includes a reporting amount of the first CSI reporting, and the reporting amount of the first CSI reporting includes a CRI (CSI-RS resource index), an RI, and a CQI.

[0078] In one embodiment, the first CSI reporting configuration includes a reporting amount of the first CSI reporting, and the reporting amount of the first CSI reporting does not include PMI.

[0079] In one embodiment, the first CSI reporting configuration includes a reporting amount of the first CSI reporting, and the reporting amount of the first CSI reporting includes only CRI, RI, and CQI.

[0080] In one embodiment, the first CSI reporting configuration includes a reporting amount of the first CSI reporting, and the reporting amount of the first CSI reporting includes at least only the RI and the CQI among the CRI, the RI, and the CQI.

[0081] Typically, the reporting amount of the first CSI reporting includes an RI and a CQI, and the RI included in the reporting amount of the first CSI reporting is a first rank. The first CQI is a CQI included in the reporting amount of the first CSI reporting.

[0082] In one embodiment, the reporting amount of the first CSI reporting includes only a CRI, an RI, and a CQI, the first RS resource index is a CRI included in the reporting amount of the first CSI reporting, the RI included in the reporting amount of the first CSI reporting indicates a first rank, and the first CQI is a CQI included in the reporting amount of the first CSI reporting.

[0083] As an embodiment, for specific definitions of the IEs CSI-ReportConfig, resourcesForChannelMeasurement, CSI-IM-ResourcesForInterference, nzp-CSI-RS-ResourcesForInterference, IEs CSI-ResourcesConfig, and CSI-ResourcesConfigId, please refer to Chapter 6.3.2 of 3GPP TS 38.331.

[0084] In one embodiment, the first CSI reporting is generated conditioned on at least channel information obtained from measurements on the first RS resource.

[0085] In one embodiment, the first CSI reporting is generated conditioned on at least channel measurements performed on the first RS resource.

[0086] In one embodiment, the first CSI reporting is generated using, as a condition, channel information obtained from measurements on the first RS resource and interference information obtained from measurements on the second RS resource.

[0087] In one embodiment, the first CSI reporting is generated conditioned on a channel measurement performed on the first RS resource and an interference measurement performed on the second RS resource.

[0088] In one embodiment, the first CSI reporting is generated using, as a condition, channel information obtained from measurements on the first RS resource and interference information obtained from measurements on the second RS resource and the third RS resource.

[0089] In one embodiment, the first CSI reporting is generated using as a condition a channel measurement performed on the first RS resource and an interference measurement performed on the second RS resource and a third RS resource.

[0090] In one embodiment, the first CSI configuration information includes R index groups.

[0091] In one embodiment, the first CSI configuration information includes first sub-information, and the first sub-information includes R index groups.

[0092] In one embodiment, the name of the first sub-information includes Non-PMI-PortIndication.

[0093] In one embodiment, the first sub-information belongs to a non-PMI-PortIndication domain.

[0094] In one embodiment, the name of the first lower level information is "Non-PMI-Port" ) is included.

[0095] In one embodiment, the name of the first lower information includes PortIndex.

[0096] In one embodiment, the name of the first lower information includes PortIndexFor8Ranks (port index for 8 ranks).

[0097] In one embodiment, the first lower information includes at least one of portIndex8 (port index 8), portIndex4 (port index 4), portIndex2 (port index 2), or portIndex1 (port index 1).

[0098] In one embodiment, any index in the R index groups is a non-negative integer.

[0099] In one embodiment, any index in the R index groups is a non-negative integer less than the number of ports of the first RS resource.

[0100] In one embodiment, any index in the R index groups is the index of one port of the first indicated RS resource.

[0101] In one embodiment, R is less than or equal to the number of ports of the first RS resource.

[0102] In one embodiment, R is equal to the number of ports of the first RS resource.

[0103] In one embodiment, the R index groups are set to R ranks, respectively.

[0104] In one embodiment, the number of indexes included in each of the R index groups is equal to the R ranks, respectively.

[0105] In one embodiment, all R ranks are less than or equal to the number of ports of the first RS resource.

[0106] In one embodiment, the R ranks are 1, . . . R, respectively.

[0107] Typically, the R ranks are R positive integers that are different for each comparison partner.

[0108] In one embodiment, all indexes included in any of the R index groups are arranged in layer order.

[0109] In one embodiment, arrangement in layer order refers to arrangement in layer order from smallest to largest.

[0110] In one embodiment, arrangement in layer order refers to arrangement in layer order from largest to smallest.

[0111] In one embodiment, non-PMI-PortIndication, PortIndexF For specific definitions of or8Ranks, portIndex8, portIndex4, portIndex2, and portIndex1, please refer to Chapter 6.3.2 of 3GPP TS 38.331.

[0112] In one embodiment, the first port group includes at least one port of the RS resource.

[0113] In one embodiment, the first port group includes at least one port of the RS resource.

[0114] In one embodiment, the first port group includes at least one port.

[0115] In one embodiment, the first RS resource comprises at least one non-zero power port and at least one zero power port.

[0116] In one embodiment, the first port group includes the non-zero power ports of the first RS resource.

[0117] In one embodiment, the first port group includes all non-zero power ports of the first RS resource.

[0118] In one embodiment, the first port group includes at least one non-zero power port of the first RS resource.

[0119] 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.

[0120] In one embodiment, among all ports of the first RS resource, any port other than the first port group is at zero power.

[0121] In one embodiment, the first port group includes active ports of the first RS resource.

[0122] In one embodiment, the first port group includes the non-zero power ports of the first RS resource.

[0123] In one embodiment, the first port group includes all non-zero power ports of the first RS resource.

[0124] In one embodiment, the first port group includes at least one non-zero power port of the first RS resource.

[0125] In one embodiment, the first RS resource comprises at least one zero-power port and at least one non-zero-power port.

[0126] Typically, the transmit power on one non-zero power port is non-zero and the transmit power on one zero power port is zero.

[0127] In one embodiment, the first signaling is MAC CE signaling.

[0128] In one embodiment, the first signaling is physical layer signaling.

[0129] In one embodiment, the first signaling is UE specific.

[0130] In one embodiment, the first signaling is non-UE specific.

[0131] In one embodiment, the first signaling is specific to a UE group.

[0132] In one embodiment, the first signaling is common to the cell.

[0133] In one embodiment, the first signaling is DCI signaling.

[0134] In one embodiment, one domain in the first signaling is used to determine the first port group.

[0135] In one embodiment, multiple domains in the first signaling are used to determine the first port group.

[0136] In one embodiment, the DCI format of the first signaling is used to determine the first port group.

[0137] In one embodiment, the first signaling is used to indicate a first port group.

[0138] In one embodiment, the first signaling explicitly indicates the first port group.

[0139] In one embodiment, the first signaling implicitly indicates the first port group.

[0140] In one embodiment, the first signaling is used to determine a zero power port.

[0141] In one embodiment, the first signaling is used to determine the non-zero power ports.

[0142] In one embodiment, the first signaling is used to determine the activated ports.

[0143] In one embodiment, the first signaling is used to determine the deactivated port.

[0144] In one embodiment, the first signaling is used to determine the active port.

[0145] In one embodiment, the first signaling is used to determine inactive ports.

[0146] In one embodiment, the first signaling is used to determine the muted port.

[0147] In one embodiment, the first signaling is to signal the active CORESET (Control Resource is used to determine the

[0148] In one embodiment, the first signaling is used to determine an inactive CORESET.

[0149] In one embodiment, the first signaling is used to determine the muted CORESET.

[0150] In one embodiment, the first signaling is used to determine a zero-power port of the first RS resource.

[0151] In one embodiment, the first signaling is used to determine a non-zero power port of the first RS resource.

[0152] In one embodiment, the first signaling is used to determine all zero-power ports of the first RS resource.

[0153] In one embodiment, the first signaling is used to determine all non-zero power ports of the first RS resource.

[0154] In one embodiment, the port includes an antenna port.

[0155] In one embodiment, the port includes a CSI-RS port.

[0156] In one embodiment, the port includes an RS port.

[0157] 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.

[0158] As one subembodiment of the above embodiment, any RS resource in the first RS resource set is activated.

[0159] As one subembodiment of the above embodiment, any RS resources in the first RS resource set are deactivated.

[0160] As one subembodiment of the above embodiment, the first port group includes ports of RS resources in the first RS resource set.

[0161] As one subembodiment of the above embodiment, the first port group includes at least one port other than the ports of the RS resources in the first RS resource set.

[0162] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are quasi-colocated (QCL) with ports of RS resources in the first RS resource set.

[0163] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are not quasi-colocated with ports of RS resources in the first TRS resource set.

[0164] As a subembodiment of the above embodiment, the first port group includes a first RS link. It includes a port in a first RS resource that is quasi-colocated (QCL) with a port of an RS resource in the source set.

[0165] As one subembodiment of the above embodiment, the first port group includes ports in the first RS resource set that are not quasi-colocated (QCL) with ports of RS resources in the first RS resource set.

[0166] In one embodiment, the first signaling is used to indicate a first TCI (Transmission Configuration Indicator) state group, and the first port group depends on the first TCI state group.

[0167] As a subembodiment of the above embodiment, any TCI state in the first TCI state group is activated.

[0168] As a subembodiment of the above embodiment, any TCI state in the first TCI state group is deactivated.

[0169] As one subembodiment of the above embodiment, the first port group includes ports of RS resources in the first TCI state group.

[0170] As one subembodiment of the above embodiment, the first port group includes at least one port other than the port of the RS resource in the first TCI status group.

[0171] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are quasi-colocated (QCL) with ports of RS resources in the first TCI state group.

[0172] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are not quasi-colocated with ports of RS resources in the first TCI state group.

[0173] As one subembodiment of the above embodiment, the first port group includes ports in the first RS resource that are quasi-colocated (QCL) with ports of the RS resource in the first TCI state group.

[0174] As one subembodiment of the above embodiment, the first port group includes ports in the first RS resource that are not quasi-colocated (QCL) with ports of the RS resource in the first TCI state group.

[0175] 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.

[0176] 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.

[0177] As one subembodiment of the above embodiment, the first port group includes at least one port other than the ports of the RS resources in the TCI state of the first CORESET pool.

[0178] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are quasi-colocated with ports of RS resources in the TCI state of the first CORESET pool.

[0179] As one subembodiment of the above embodiment, the first port group includes ports of RS resources that are not quasi-colocated with ports of RS resources in the TCI state of the first CORESET pool.

[0180] As one subembodiment of the above embodiment, the first port group includes ports in the first RS resource that are quasi-colocated (QCL) with ports of the TCI-state RS resource of the first CORESET pool.

[0181] As one subembodiment of the above embodiment, the first port group includes ports in the first RS resource that are not quasi-colocated (QCL) with ports of the TCI-state RS resources of the first CORESET pool.

[0182] In one embodiment, the TCI state of the first CORESET pool includes the TCI state of at least one CORESET in the first CORESET pool.

[0183] In one embodiment, the TCI state of the first CORESET pool includes the TCI state of each CORESET in the first CORESET pool.

[0184] Typically, the TCI state of one CORESET indicates the TCI state of one QCL parameter of one CORESET.

[0185] In one embodiment, please refer to Chapter 10 of 3GPP TS38.213 for specific definitions of CORESET and TCI states.

[0186] In one embodiment, the meaning of "two ports quasi-colocated" includes the two ports having at least one identical QCL parameter.

[0187] In one embodiment, "two ports quasi-colocated" means that the two ports have identical QCL parameters.

[0188] In one embodiment, the meaning of "two ports quasi-colocated" includes the two ports having identical QCL parameters of type D.

[0189] In one embodiment, "two ports quasi-colocated" means that the two ports have identical spatial Rx parameters.

[0190] In one embodiment, the meaning of "two ports not quasi-colocated" includes the two ports having different QCL parameters.

[0191] In one embodiment, the meaning of "two ports not quasi-colocated" includes the two ports having at least one different QCL parameter.

[0192] In one embodiment, the meaning of "two ports not quasi-colocated" includes two ports having different QCL parameters of type D.

[0193] In one embodiment, the meaning of "two ports not quasi-collocated" includes the two ports having different spatial Rx parameters.

[0194] In one embodiment, one TCI (Transmission Configuration Indicator) state indicates one quasi-collocation relationship.

[0195] In one embodiment, one TCI state indicates one or more reference signal resources.

[0196] In one embodiment, one TCI state indicates at least one reference signal resource.

[0197] In one embodiment, any reference signal resource indicated by one 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.

[0198] In one embodiment, any reference signal resource indicated by one TCI state is a CSI-RS resource or an SS / PBCH block resource.

[0199] In one embodiment, one TCI state indicates at least one reference signal resource and a QCL (quasi-colocated) parameter corresponding to each reference signal resource of the at least one reference signal resource.

[0200] In one embodiment, one TCI state indicates at least one reference signal resource and a type of QCL parameter corresponding to each reference signal resource of the at least one reference signal resource.

[0201] In one embodiment, the types of QCL parameters include Type A, Type B, Type C, and Type D.

[0202] In one embodiment, the Type A QCL parameters include Doppler shift, Doppler spread, mean delay, and delay spread.

[0203] In one embodiment, the Type B QCL parameters include Doppler shift and Doppler spread.

[0204] In one embodiment, the Type C QCL parameters include Doppler shift and mean delay.

[0205] In one embodiment, the Type D QCL parameters include spatial Rx parameters.

[0206] As an embodiment, for specific definitions of Type A, Type B, Type C, and Type D, please refer to Chapter 5.1.5 of 3GPP TS38.214.

[0207] In one embodiment, the QCL parameters include one or more of delay spread, Doppler spread, Doppler shift, mean delay, or spatial Rx parameters.

[0208] In one embodiment, the QCL parameters include Doppler shift and Doppler spread.

[0209] In one embodiment, the QCL parameters include Doppler shift and mean delay.

[0210] In one embodiment, the QCL parameters include spatial Rx parameters.

[0211] In one embodiment, the QCL parameters include at least one of spatial transmit parameters or spatial Rx parameters.

[0212] In one embodiment, the QCL parameters include a spatial domain receive filter.

[0213] In one embodiment, the QCL parameters include a spatial domain filter.

[0214] In one embodiment, the QCL parameters include at least one of a spatial domain transmit filter or a spatial domain receive filter.

[0215] In one embodiment, for specific definitions of TCI states and quasi-co-location (QCL), please refer to Chapter 5.1.5 of 3GPP TS38.214.

[0216] Typically, the reference port group includes ports of the first RS resource indicated by each index in the first index group.

[0217] Typically, at least one port in the reference port group is associated with the first port group.

[0218] In one embodiment, each port in the reference port group is associated with a first port group.

[0219] In one embodiment, a portion of the ports in the reference port group are associated with the first port group.

[0220] In one embodiment, the meaning of the phrase "the first CQI is calculated using at least one port in the reference port group as a condition" includes the first CQI being calculated using all ports in the reference port group as conditions.

[0221] In one embodiment, the meaning of the phrase "the first CQI is calculated using at least one port in the reference port group as a condition" includes the first CQI being calculated using a portion of the ports in the reference port group as a condition.

[0222] In one embodiment, the meaning of the phrase "the first CQI is calculated using at least one port in the reference port group as a condition" includes that the first CQI is calculated using all ports in a reference port group associated with the first port group as conditions.

[0223] In one embodiment, the first rank is equal to or less than the number of ports included in the reference port group.

[0224] In one embodiment, the first rank is equal to the number of ports included in the reference port group.

[0225] In one embodiment, the first rank is equal to or less than the number of ports of the first RS resource.

[0226] In one embodiment, in the calculation of the first CQI, the precoder of at least one port in the reference port group is an identity matrix.

[0227] In one embodiment, the meaning of the phrase "the precoder of at least one port in the reference port group is an identity matrix" includes that the precoder of at least one port in the reference port group is assumed to be an identity matrix.

[0228] In one embodiment, the first CQI is calculated without using the PMI as a condition.

[0229] In one embodiment, the calculation of the first CQI is independent of the codebook.

[0230] In one embodiment, the meaning of the phrase "the first CQI is calculated using a given port group as a condition" includes that the first CQI is calculated using only a given port group among all ports of the first RS resource as a condition, and the given port group includes at least one port in a reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0231] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes the following: the reference port group further includes one port other than the given port group; the calculation of the first CQI is independent of any port other than the given port group in the reference port group; the given port group includes at least one port in the reference port group; or the given port group includes all ports in the reference port group; or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0232] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the precoder of the given port group is assumed to be an identity matrix, and the given port group includes at least one port in the reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0233] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the first CQI is calculated without using a PMI (Precoding Matrix Index) as a condition, and the given port group includes at least one port in a reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0234] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the calculation of the first CQI is independent of the codebook, and that the given port group includes at least one port in the reference port group, or that the given port group includes all ports in the reference port group, or that the given port group includes all ports in the reference port group that are associated only with the first port group.

[0235] In one embodiment, the first CQI is calculated using a given port group as a condition. The meaning of the phrase "is calculated" includes that the first node calculates a first CQI based on the rank being equal to the number of ports included in the given port group and different ports in the given port group corresponding to different layers, and the given port group includes at least one port in the reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0236] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes the following: the first node calculates the first CQI based on the rank being equal to the number of ports included in the given port group and each port in the given port group transmitting each layer, and the given port group includes at least one port in the reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0237] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the first node calculates the first CQI based on the rank being equal to the number of ports included in the given port group, and the given port group includes at least one port in the reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0238] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the first node calculates the first CQI based on measurements for the given port group, and the given port group includes at least one port in the reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0239] In one embodiment, the meaning of the phrase "the first CQI is calculated using the given port group as a condition" includes that the first node calculates the first CQI based on a channel matrix obtained by measurements on the given port group, and the given port group includes at least one port in a reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are associated only with the first port group.

[0240] 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. A typical but non-limiting implementation is described below: The first node first performs measurements on a given port group to obtain the channel parameter matrix H r×t where r and t are the number of receive antennas and the number of ports included in a given port group, respectively; the given port group includes at least one port in a reference port group, or the given port group includes all ports in the reference port group, or the given port group includes all ports in the reference port group that are only associated with the first port group; and the precoding matrix W t×l Under the condition that is used, the coding channel parameter matrix is , H r×t ·W t×l where l is the number of ranks or layers, and in one case is a positive integer less than or equal to , and in another case the precoding matrix is ​​an identity matrix, where t=l and H r×t ·W t×l The equivalent channel capacity of is calculated using, for example, SINR (Signal-to-Interference and Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block Average Mutual Information Ratio) criteria, and then the first CQI is determined by the equivalent channel capacity through table lookup or the like. Generally speaking, calculating the equivalent channel capacity requires the first node to estimate interference (including noise), and the first node may use at least a second RS resource within the second RS resource or third RS resource in this application to measure the interference more accurately. Generally speaking, direct mapping of the equivalent channel capacity to a CQI value depends on the performance of the receiver or hardware-related factors such as the modulation mode.

[0241] Typically, only the rank among the R ranks that satisfies the first condition can be selected as the first rank.

[0242] Typically, the candidate range for the first rank includes only those ranks among the R ranks that satisfy the first condition.

[0243] Typically, the first rank is the one rank among the R ranks that satisfies the first condition.

[0244] In one embodiment, the meaning of "one port of the first RS resource is associated with the first port group" includes that one port of the first RS resource belongs to the first port group.

[0245] In one embodiment, the meaning of "one port of the first RS resource is associated with the first port group" includes one port of the first RS resource being quasi-colocated with one port in the first port group.

[0246] 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.

[0247] 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 is 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 Equipments (UEs) 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, but these entities / interfaces are not shown for simplicity. As shown in Figure 2, the 5GS / EPS 200 provides packet-switched services, but those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services. The NG-RAN 202 includes a New Radio (NR) Node B (gNB) 203 and other gNBs 204. The gNB 203 communicates user plane and control plane protocols to the UE 201. The gNB 203 provides termination. The gNB 203 may be connected to 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 transmit / receive device, transmit / receive device function, basic service set (BSS), extended service set (ESS), TRP (transmit receiving point), or other suitable terminology. The gNB 203 provides an access point to the 5GC / EPC 210 for the UE 201. Examples of UEs 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 transportation 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, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology. 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 processes 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 sent through the S-GW / UPF 212, which itself is connected to the P-GW / UPF 213.The P-GW provides IP address allocation for the UE and other functions. The P-GW / UPF 213 is connected to Internet services 230. Internet services 230 include Internet Protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched services.

[0248] In one embodiment, the first node in this application includes a UE 201.

[0249] In one embodiment, the first node in this application includes the UE 241.

[0250] In one embodiment, the second node in this application includes gNB203.

[0251] 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.

[0252] 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 Figure 3. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture of a user plane 350 and a control plane 300. Figure 3 illustrates a radio protocol architecture of a control plane 300 between a first communication node device (UE, gNB, or RSU in V2X) 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 performs various PHY (physical layer) signal processing functions. The L1 layer is referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between a first communication node device and a second communication node device or between two UEs. The L2 layer 305 comprises a MAC (Media Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate in the second communication node device. 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 one cell 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 comprises Layer 1 (L1 layer) and Layer 2 (L2 layer).The radio protocol architecture of 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: a physical layer 351, a PDCP sublayer 354 in the L2 layer 355, an RLC sublayer 353 in the L2 layer 355, and a MAC sublayer 352 in the L2 layer 355, except that the PDCP sublayer 354 also provides header compression of upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further comprises an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown in the figure, 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 and server).

[0253] As an embodiment, the radio protocol architecture of FIG. 3 is applicable to the first node of the present application.

[0254] In one embodiment, the radio protocol architecture of FIG. 3 is applicable to the second node of the present application.

[0255] In one embodiment, the first CSI configuration information is generated in the RRC sublayer 306.

[0256] In one embodiment, the first signaling is generated in the MAC sublayer 302 .

[0257] In one embodiment, the first signaling is generated in the MAC sublayer 352 .

[0258] In one embodiment, the first signaling is generated by PHY 301 .

[0259] In one embodiment, the first signaling is generated by PHY 351 .

[0260] In one embodiment, the first RS resource is generated by PHY 301 .

[0261] In one embodiment, the first RS resource is generated by PHY 351 .

[0262] In one embodiment, the first RS resource group is generated in PHY 301 .

[0263] In one embodiment, the first RS resource group is generated in PHY 351 .

[0264] In one embodiment, the second RS resource group is generated in PHY 301 .

[0265] In one embodiment, the second RS resource group is generated in PHY 351 .

[0266] In one embodiment, the first CSI reporting is generated in PHY 301.

[0267] In one embodiment, the first CSI reporting is generated in PHY 351.

[0268] 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.

[0269] The first communication device 410 comprises 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 transmit device / receive device 418, and an antenna 420.

[0270] The second communication device 450 comprises 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, a transmit device / receive device 454, and an antenna 452.

[0271] 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 of the L1 layer (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at 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: Each parallel stream is mapped to a subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then an inverse fast Fourier transform (IFFT) is used 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 transmitting device 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides the radio frequency stream to a different antenna 420.

[0272] In a transmission from the first communication device 410 to the second communication device 450, each receiving device 454 receives a signal via its corresponding antenna 452. Each receiving device 454 recovers the information modulated onto a radio frequency carrier, converts the radio frequency stream to a baseband multi-carrier symbol stream, and provides the baseband multi-carrier symbol stream 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 receiving device 454. The receive processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream from the time domain to the frequency domain after the receive analog precoding / beamforming operation. 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 undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receive processor 456 to generate soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. 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 codes and data. The memory 460 may be 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 performing error detection and supporting HARQ operations using an acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol.

[0273] 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 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 the L2 layer functions of 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 assignment. 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, which are provided to different antennas 452 via the transmit devices 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmit device 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then supplies the radio frequency symbol stream to the antenna 452.

[0274] For transmissions from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receive functions at the second communication device 450 for transmissions from the first communication device 410 to the second communication device 450. Each receive device 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals 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 the functionality of the L1 layer. The controller / processor 475 implements the functionality of the L2 layer. 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 demultiplexing between transport 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 a core network. The controller / processor 475 is also responsible for performing error detection and supporting HARQ operations using an ACK and / or NACK protocol.

[0275] 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, the at least one memory and the computer program code configured for use with the at least one processor. The second communication device 450 at least receives first signaling, receives first RS resources, transmits first CSI reporting, 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each other, R is a positive integer greater than 1, and the first signaling nulling is used to determine a first port group, the first CSI reporting includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0276] In one embodiment, the second communication device 450 includes a memory having a computer-readable instruction program stored thereon, the computer-readable instruction program, when executed by at least one processor, generating actions including receiving first CSI configuration information, receiving first signaling, receiving first RS resources, and transmitting first CSI reporting, wherein 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, and the R index groups are the first CSI reporting includes a first rank and a first CQI, the first rank being one of the R ranks, the first index group being an index group among the R index groups corresponding to the first rank, the reference port group including all ports of the first RS resource indicated by the first index group, the first CQI being calculated using at least one port in the reference port group as a condition, the first rank being selected only from ranks among the R ranks that satisfy a first condition, the first condition including ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0277] In one embodiment, the first communication device 410 includes at least one processor and at least one memory, the at least one memory including computer program code, the at least one memory and the computer program code configured for use with the at least one processor. The first communication device 410 at least transmits first CSI configuration information, transmits first signaling, transmits first RS resources, and receives first CSI reporting, 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each other, and R is a positive integer greater than 1. , the first signaling is used to determine a first port group, the first CSI reporting includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0278] In one embodiment, the first communication device 410 includes a memory having a computer-readable program of instructions stored therein, the computer-readable program of instructions being executed by at least one processor. and generating an action when executed by the RS, the action including transmitting first CSI configuration information, transmitting first signaling, transmitting first RS resources, and receiving first CSI reporting, wherein 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, and R is the first CSI reporting includes a first rank and a first CQI; the first rank is one of the R ranks; the first index group is an index group among the R index groups corresponding to the first rank; the reference port group includes all ports of the first RS resource indicated by the first index group; the first CQI is calculated using at least one port in the reference port group as a condition; the first rank is selected only from ranks among the R ranks that satisfy a first condition; the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0279] In one embodiment, the first node in this application comprises a second communication device 450 .

[0280] In one embodiment, the second node in this application comprises a first communication device 410 .

[0281] In one embodiment, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving 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, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, and memory 476} is used in the present application to transmit the first CSI configuration information.

[0282] In one embodiment, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving 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, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, and memory 476} is used to transmit the first signaling in the present application.

[0283] In one embodiment, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, and data source 467} is used to receive the first RS resource in the present application, and at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, and memory 476} is used to transmit the first RS resource in the present application.

[0284] In one embodiment, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving 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, transmitting device 418, transmitting processor 416, multi-antenna transmitting 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.

[0285] In one embodiment, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, and data source 467} is used to receive the second RS resource group in the present application, and at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, and memory 476} is used to transmit the second RS resource group in the present application.

[0286] In one embodiment, at least one of {antenna 452, transmitting device 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, and memory 460} is used to transmit the first CSI reporting in the present application, and at least one of {antenna 420, receiving device 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, and memory 476} is used to receive the first CSI reporting in the present application.

[0287] Embodiment 5 Embodiment 5 illustrates a flowchart of wireless signal 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, and the steps in boxes F1 and F2 are optional.

[0288] For the first node U01, in step S5101, first CSI configuration information is received, in step S5102, first signaling is received, in step S5103, a first RS resource is received, in step S5104, at least one RS resource other than the first RS resource in the first RS resource group is received, in step S5105, a second RS resource group is received, and in step S5106, a first CSI reporting is transmitted.

[0289] For the second node N02, in step S5201, first CSI configuration information is transmitted, in step S5202, first signaling is transmitted, in step S5203, a first RS resource is transmitted, in step S5204, at least one RS resource other than the first RS resource in the first RS resource group is transmitted, in step S5205, a second RS resource group is transmitted, and in step S5206, a first CSI reporting is received.

[0290] In embodiment 5, the first CSI configuration information is used to indicate a first RS resource, and measurements on the first RS resource are used to generate a first CSI reporting; the first CSI configuration information is used to indicate R index groups, and any index group in the R index groups is at least the first CSI reporting includes a first rank and a first CQI, the first rank being one of the R ranks, the first index group being an index group among the R index groups corresponding to the first rank, the reference port group including all ports of the first RS resource indicated by the first index group, the first CQI being calculated using at least one port in the reference port group as a condition, the first rank being selected only from ranks among the R ranks that satisfy a first condition, the first condition including ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0291] 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 reporting 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.

[0292] In one embodiment, the first RS resource group includes M RS resources for channel measurement, the second RS resource group includes M RS resources for interference measurement, and the M RS resources for channel measurement correspond one-to-one to the M RS resources for interference measurement, respectively.

[0293] As one subembodiment of the above embodiment, when the first given RS resource is any RS resource among the M 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 M RS resources for interference measurement is used for interference measurement.

[0294] In one embodiment, the first RS resource index is a CRI.

[0295] In one embodiment, the first RS resource index is used to identify a first RS resource in a first RS resource group.

[0296] In one embodiment, the first RS resource index includes a position of the first RS resource within the first RS resource group.

[0297] In one embodiment, the first RS resource index includes an index of the first RS resource in the first RS resource group.

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

[0299] In one embodiment, the first rank and the first CQI are generated using a channel measurement performed on the first RS resource and an interference measurement performed on the second RS resource and the third RS resource as a condition, and the second RS resource is a second RS resource. Belongs to a resource group.

[0300] In one embodiment, the first rank and the first CQI are generated using, as conditions, a channel measurement performed on the first RS resource and an interference measurement performed on the second RS resource and the 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.

[0301] In one embodiment, the meaning of the phrase "the first rank and the first CQI are obtained using the first RS resource index as a condition" includes 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 using channel information generated by measurements on the first RS resource as a condition.

[0302] In one embodiment, the meaning of the phrase "the first rank and the first CQI are obtained using the first RS resource index as a condition" includes 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 using channel measurements performed on the first RS resource as a condition.

[0303] In one embodiment, the meaning of the phrase "the first rank and the first CQI are obtained using the first RS resource index as a condition" includes 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 using only the first RS resource in the first RS resource group as a condition.

[0304] In one embodiment, the meaning of the phrase "the first rank and the first CQI are obtained using the first RS resource index as a condition" includes 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.

[0305] Embodiment 6 Embodiment 6, as shown in FIG. 6, illustrates a schematic diagram of a first CQI according to an embodiment of the present application.

[0306] In embodiment 6, the first condition includes ports of a first RS resource associated with a first port group and indicated by each index in a corresponding index group, and the first CQI is calculated using all ports in the reference port group as conditions.

[0307] Embodiment 7 Embodiment 7, as shown in FIG. 7, illustrates a schematic diagram of a first CQI according to an embodiment of the present application.

[0308] In embodiment 7, the first CQI is calculated using all ports in the reference port group that are associated only with the first port group as a condition.

[0309] Embodiment 8 Embodiment 8, as shown in FIG. 8, is a first CQI according to another embodiment of the present application. 1 illustrates a schematic diagram.

[0310] In embodiment 8, the number of ports included in the reference port group is equal to the first rank, the target port group includes all ports in the reference port group that are associated with the first port group, and the rank used to calculate the first CQI is equal to the number of ports included in the target port group.

[0311] Typically, the rank used in calculating the first CQI is equal to the number of layers used in calculating the first CQI.

[0312] Typically, the rank used in the calculation of the first CQI is equal to the number of layers assumed in the calculation of the first CQI.

[0313] Typically, the rank used in the calculation of the first CQI is equal to the number of ranks assumed in the calculation of the first CQI.

[0314] Embodiment 9 Embodiment 9, as shown in FIG. 9, illustrates a schematic diagram of a first CQI according to another embodiment of the present application.

[0315] In embodiment 9, the rank used to calculate the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

[0316] In one embodiment, the rank used to calculate the first CQI is less than the first rank.

[0317] In one embodiment, the rank used to calculate the first CQI is equal to the first rank.

[0318] In one embodiment, the rank used to calculate the first CQI is less than or equal to the first rank.

[0319] In one embodiment, if only a portion of the ports in the reference port group are associated with the first port group, the rank used to calculate the first CQI is less than the first rank.

[0320] Embodiment 10 Embodiment 10, as shown in FIG. 10, illustrates a schematic diagram of a first CSI reporting according to an embodiment of the present application.

[0321] In embodiment 10, the first CSI reporting is transmitted only if at least one rank among the R ranks satisfies the first condition.

[0322] In one embodiment, the first CSI reporting is generated only when at least one rank among the R ranks satisfies a first condition.

[0323] Embodiment 11 Embodiment 11, as shown in FIG. 11, illustrates a structural block diagram of a processing device used in a first node device according to an embodiment of the present application. In this embodiment, a processing unit 1200 in the first node device includes a first receiver 1201 and a first transmitter 1202.

[0324] In one embodiment, the first node device is a user equipment.

[0325] In one embodiment, the first node device is a relay node device.

[0326] In one embodiment, the first receiver 1201 comprises at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, and data source 467} in embodiment 4.

[0327] In one embodiment, the first transmitter 1202 comprises at least one of {antenna 452, transmitting device 454, transmitting processor 468, multi-antenna transmitting processor 457, controller / processor 459, memory 460, and data source 467} in embodiment 4.

[0328] The first receiver 1201 receives first CSI configuration information, receives first signaling, and receives first RS resources;

[0329] The first transmitter 1202 transmits a first CSI reporting;

[0330] In embodiment 11, 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group in the R index groups includes at least one index, any index in the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, and the first CSI reporting is used to generate a first CSI reporting. the CSI reporting includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0331] In one embodiment, the first condition includes ports of a first RS resource associated with the first port group and indicated by each index in the corresponding index group, and the first CQI is calculated using all ports in the reference port group as conditions.

[0332] In one embodiment, the first CQI is calculated using as a condition all ports in a reference port group that are associated only with the first port group.

[0333] In one embodiment, the number of ports included in the reference port group is equal to the first rank, and the target port group is a reference port group associated with the first port group. The rank used to calculate the first CQI is equal to the number of ports included in the target port group, including all ports in the target port group.

[0334] In one embodiment, the rank used to calculate the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

[0335] In one embodiment, the first CSI reporting is transmitted only when at least one rank among the R ranks satisfies a first condition.

[0336] In one embodiment, a 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 reporting 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.

[0337] Embodiment 12 Embodiment 12 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application, as shown in Fig. 12. In Fig. 12, a processing device 1300 in the second node device includes a second transmitter 1301 and a second receiver 1302.

[0338] In one embodiment, the second node device is a base station device.

[0339] In one embodiment, the second node device is a user equipment.

[0340] In one embodiment, the second node device is a relay node device.

[0341] In one embodiment, the second transmitter 1301 includes at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, and memory 476} in embodiment 4.

[0342] In one embodiment, the second receiver 1302 includes at least one of {antenna 420, receiving device 418, receiving processor 470, multi-antenna receiving processor 472, controller / processor 475, and memory 476} in embodiment 4.

[0343] The second transmitter 1301 transmits the first CSI configuration information, transmits the first signaling, and transmits the first RS resource.

[0344] The second receiver 1302 receives the first CSI reporting.

[0345] In embodiment 12, the first CSI configuration information is used to indicate a first RS resource, and measurements on the first RS resource are used to generate a first CSI reporting; the first CSI configuration information is used to indicate R index groups, and any index group in the R index groups includes at least one index; and any index in the R index groups is , is used to indicate a port of a first RS resource, R index groups respectively corresponding one-to-one to R ranks, the R ranks differ for each comparison partner, R is a positive integer greater than 1, first signaling is used to determine the first port group, the first CSI reporting includes a first rank and a first CQI, the first rank is one of the R ranks, the first index group is an index group among the R index groups corresponding to the first rank, the reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, the first rank is selected only from ranks among the R ranks that satisfy a first condition, the first condition includes ports of the first RS resource indicated by at least one index in the corresponding index group associated with the first port group.

[0346] In one embodiment, the first condition includes ports of a first RS resource associated with the first port group and indicated by each index in the corresponding index group, and the first CQI is calculated using all ports in the reference port group as conditions.

[0347] In one embodiment, the first CQI is calculated using as a condition all ports in a reference port group that are associated only with the first port group.

[0348] In one embodiment, the number of ports included in the reference port group is equal to a first rank, the target port group includes all ports in the reference port group that are associated with the first port group, and the rank used to calculate the first CQI is equal to the number of ports included in the target port group.

[0349] In one embodiment, the rank used to calculate the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

[0350] In one embodiment, the first CSI reporting is transmitted only when at least one rank among the R ranks satisfies a first condition.

[0351] 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 reporting 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.

[0352] Those skilled in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium such as a read-only memory, a hard disk, or an optical disk. 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 specific form of combination of software and hardware. The user equipment, terminal, and UE in the present application include, but are not limited to, drones, communication modules on drones, remote The term "base station" refers to a wireless communication device, such as a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted communication device, a wireless sensor, an Internet card, an Internet of Things terminal, an RFID terminal, an NB-IOT terminal, an MTC (machine type communication) terminal, an eMTC (extended MTC) terminal, a data card, an Internet card, a vehicle-mounted communication device, a low-cost mobile phone, a low-cost tablet computer, and other wireless communication devices. The term "base station" refers to a device in a system, such as a macrocell base station, a microcell base station, a femtocell, a relay base station, a gNB (NR Node B), a TRP (Transmit Receiving Point), and other wireless communication devices.

[0353] The above are only preferred embodiments of the present application and are not used 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 deemed obvious and fall within the protection scope of the present invention.

Claims

1. A first node device used for wireless communication, a first receiver that receives first CSI configuration information, receives first signaling, and receives first RS resources; a first transmitter configured to transmit a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, the first signaling is used to determine a first port group, and the first CSI reporting is a first rank and a first CQI, wherein the first rank is one of the R ranks, a first index group is an index group among the R index groups corresponding to the first rank, a reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, and the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes the ports of the first RS resource indicated by at least one index in a corresponding index group associated with the first port group.

2. 2. The first node device of claim 1, wherein the first condition includes the ports of the first RS resource indicated by each index in the corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

3. The first node device of claim 1 , wherein the first CQI is calculated using as a condition all ports in the reference port group that are associated only with the first port group.

4. 4. The first node device of claim 3, wherein the number of ports included in the reference port group is equal to the first rank, a target port group includes all ports in the reference port group that are associated with the first port group, and the rank used in the calculation of the first CQI is equal to the number of ports included in the target port group.

5. 5. The first node device of claim 3, wherein the rank used in the calculation of the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

6. The first node device of any one of claims 1 to 5, wherein the first CSI reporting is transmitted only if at least one rank among the R ranks satisfies the first condition.

7. At least one RS other than the first RS resource in the first RS resource group receiving a resource; receiving a second RS resource group; 7. The first node device of claim 1, wherein the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI reporting includes a first RS resource index, 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 using the first RS resource index as a condition.

8. a second node device used for wireless communication, a second transmitter configured to transmit first CSI configuration information, transmit first signaling, and transmit first RS resources; a second receiver for receiving the first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group within the R index groups includes at least one index, any index within the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, the first signaling is used to determine a first port group, and the first CSI reporting is a first rank and a first CQI, wherein the first rank is one of the R ranks, a first index group is an index group among the R index groups corresponding to the first rank, a reference port group includes all ports of the first RS resource indicated by the first index group, the first CQI is calculated using at least one port in the reference port group as a condition, and the first rank is selected only from ranks among the R ranks that satisfy a first condition, and the first condition includes the ports of the first RS resource indicated by at least one index in a corresponding index group associated with the first port group.

9. 9. The second node device of claim 8, wherein the first condition includes the ports of the first RS resource indicated by each index in the corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

10. The second node device of claim 8 , wherein the first CQI is calculated using as a condition all ports in the reference port group that are associated only with the first port group.

11. 11. The second node device of claim 10, wherein the number of ports included in the reference port group is equal to the first rank, a target port group includes all ports in the reference port group that are associated with the first port group, and the rank used in the calculation of the first CQI is equal to the number of ports included in the target port group.

12. The rank used in the calculation of the first CQI is the first rank only if each port in the reference port group is associated with the first port group.

12. The second node device according to claim 10 or 11, wherein the second node device is equal to

13. The second node device of any one of claims 8 to 12, wherein the first CSI reporting is transmitted only if at least one rank among the R ranks satisfies the first condition.

14. transmitting at least one RS resource other than the first RS resource in a first RS resource group; transmitting a second RS resource group; 14. The second node device of claim 8, wherein the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI reporting includes a first RS resource index, 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 using the first RS resource index as a condition.

15. 1. A method in a first node used for wireless communication, comprising: receiving first CSI configuration information, receiving first signaling, and receiving first RS resources; transmitting a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group in the R index groups includes at least one index, any index in the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, the first signaling is used to determine a first port group, and measurements on the first RS resource are used to generate the first CSI reporting. a first index group is an index group among the R index groups corresponding to the first rank; a reference port group includes all ports of the first RS resource indicated by the first index group; the first CQI is calculated using at least one port in the reference port group as a condition; the first rank is selected only from ranks among the R ranks that satisfy a first condition; and the first condition includes the ports of the first RS resource indicated by at least one index in a corresponding index group associated with the first port group.

16. 16. The method of claim 15, wherein the first condition includes the ports of the first RS resource indicated by each index in the corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

17. The method of claim 15 , wherein the first CQI is calculated using as a condition all ports in the reference port group that are associated only with the first port group.

18. The number of ports included in the reference port group is equal to the first rank, and a target port group is associated with the first port group.

18. The method of claim 17, wherein the rank used in the calculation of the first CQI is equal to the number of ports included in the target port group, and includes all ports in the target port group.

19. 19. The method of claim 17 or 18, wherein the rank used in the calculation of the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

20. 20. The method of claim 15, wherein the first CSI reporting is transmitted only if at least one rank out of the R ranks satisfies the first condition.

21. receiving at least one RS resource other than the first RS resource in a first RS resource group; receiving a second RS resource group; 21. The method according to claim 15, wherein the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI reporting includes a first RS resource index, 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 using the first RS resource index as a condition.

22. 1. A method in a second node used for wireless communication, comprising: transmitting first CSI configuration information, transmitting first signaling, and transmitting first RS resources; receiving a first CSI reporting; 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 reporting, the first CSI configuration information is used to indicate R index groups, any index group in the R index groups includes at least one index, any index in the R index groups is used to indicate a port of the first RS resource, the R index groups correspond one-to-one to R ranks, the R ranks are different for each comparison partner, R is a positive integer greater than 1, the first signaling is used to determine a first port group, and measurements on the first RS resource are used to generate the first CSI reporting. a first index group is an index group among the R index groups corresponding to the first rank; a reference port group includes all ports of the first RS resource indicated by the first index group; the first CQI is calculated using at least one port in the reference port group as a condition; the first rank is selected only from ranks among the R ranks that satisfy a first condition; and the first condition includes the ports of the first RS resource indicated by at least one index in a corresponding index group associated with the first port group.

23. 23. The method of claim 22, wherein the first condition includes the ports of the first RS resource indicated by each index in the corresponding index group associated with the first port group, and the first CQI is calculated using all ports in the reference port group as conditions.

24. 23. The method of claim 22, wherein the first CQI is calculated using as a condition all ports in the reference port group that are associated only with the first port group.

25. 25. The method of claim 24, wherein the number of ports included in the reference port group is equal to the first rank, a target port group includes all ports in the reference port group that are associated with the first port group, and the rank used in the calculation of the first CQI is equal to the number of ports included in the target port group.

26. 26. The method of claim 24 or 25, wherein the rank used in the calculation of the first CQI is equal to the first rank only if each port in the reference port group is associated with the first port group.

27. The method of any one of claims 22 to 26, wherein the first CSI reporting is transmitted only if at least one rank out of the R ranks satisfies the first condition.

28. transmitting at least one RS resource other than the first RS resource in a first RS resource group; transmitting a second RS resource group; 28. The method according to claim 22, wherein the first RS resource group is configured for channel measurement, the second RS resource group is configured for interference measurement, the first CSI reporting includes a first RS resource index, 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 using the first RS resource index as a condition.

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