Channel state information configuration

Abstract

Systems, methods, and apparatus for wireless communication are described. A wireless communication method includes receiving, by a wireless device, a channel state information (CSI) report configuration including a combination of resources for channel measurement, where the resources for channel measurement include one or more CSI resource configurations. The method further includes transmitting, by the wireless device, the combined CSI report based on the combined CSI report configuration. The described techniques may be employed by a network device or a wireless device.

Description

Technical Field

[0001] This patent application is generally directed to digital wireless communications. Background Art

[0002] Mobile telecommunication technologies are driving the world towards an increasingly connected and networked society. Compared to existing wireless networks, next generation systems and wireless communication technologies will need to support a wider range of use case characteristics and provide a more complex and sophisticated range of access requirements and flexibility.

[0003] Long Term Evolution (LTE) is a wireless communication standard for mobile devices and data terminals developed by the Third Generation Partnership Project (3GPP). LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The fifth-generation wireless system, known as 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data rates, a large number of connections, ultra-low latency, high reliability, and other emerging business requirements. Summary of the invention

[0004] Techniques for configuring a combined channel state information (CSI) report are disclosed. The combined CSI report includes a set of CSI reports.

[0005] A first example wireless communication method includes receiving, by a wireless device, a combined channel state information (CSI) report configuration including resources for channel measurement, wherein the resources for channel measurement include one or more CSI resource configurations. The method also includes sending, by the wireless device, a combined CSI report based on the combined CSI report configuration.

[0006] A second example wireless communication method includes: sending, by a network device, a combined channel state information (CSI) report configuration including resources for channel measurement, wherein the resources for channel measurement include one or more CSI resource configurations. The method also includes: receiving, by the network device, a combined CSI report based on the combined CSI report configuration.

[0007] In yet another exemplary embodiment, a device configured or operable to perform the above method is disclosed. The device may include a processor configured to implement the above method.

[0008] In another exemplary embodiment, the above method is embodied in the form of processor executable code and stored in a non-transitory computer readable storage medium. When executed by a processor, the code included in the computer readable storage medium causes the processor to implement the method described in this patent application.

[0009] The above-described aspects and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 An exemplary channel state information (CSI) reporting configuration is shown.

[0011] Figure 2-Figure 5 An exemplary port indexing diagram is shown.

[0012] Figure 6 An exemplary CSI reporting configuration with a port quantity list and a codebook configuration list is shown.

[0013] Figure 7 An exemplary CSI reporting configuration with a CSI resource configuration is shown.

[0014] Figure 8 An exemplary CSI reference signal (CSI-RS) resource with a resource mapping list is shown.

[0015] Fig. 9 An exemplary CSI reference signal (CSI-RS) resource with a codebook configuration list is shown.

[0016] Fig.10 An exemplary CSI reporting configuration with resources used for channel measurement is shown.

[0017] Fig.11 is an exemplary flow chart for sending a combined CSI report.

[0018] Fig.12 is an exemplary flow chart for receiving a combined CSI report.

[0019] Fig.13 An exemplary block diagram of a hardware platform that may be part of a network device or a communication device is shown.

[0020] Fig.14 An exemplary wireless communication including a base station (BS) and a user equipment (UE) based on some embodiments of the disclosed technology is shown. DETAILED DESCRIPTION

[0021] The example titles of the following sections are used to facilitate understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Therefore, one or more features of one example section can be combined with one or more features of another example section. In addition, for the sake of clarity of explanation, 5G terminology is used, but the technology disclosed in this application is not limited to 5G technology, but can also be used in wireless systems implementing other protocols.

[0022] 1. Introduction

[0023] Compared with traditional wireless systems, 5G communication systems use larger bandwidths and multiple antennas. A large number of air interface units leads to huge power consumption.

[0024] In order to reduce the power consumption of gNB, one possible method is to reduce the number of antennas or antenna ports. The change in the number of antennas or antenna ports may have an impact on UE CSI measurement or CSI reporting. Therefore, in this patent, a new method for CSI measurement or CSI reporting based on different antenna ports is proposed.

[0025] CSI (Channel State Information) Measurement: The UE (User Equipment) shall perform measurements based on CSI-RS (Reference Signal) and may report corresponding reports to the gNB.

[0026] NZP-CSI-RS-Resource includes qcl-InfoPeriodicCSI-RS. qcl-InfoPeriodicCSI-RS indicates TCI-StateId. TCI-StateId is associated with the TCI state. This information indicates the beam information of CSI-RS.

[0027] like Figure 1 As shown, the UE may be configured with one or more CSI report configurations via CSI-ReportConfig signaling. The CSI-ReportConfig is associated with one or more CSI-RS resource settings via CSI-resourceConfigID. The CSI-RS resource settings are configured via CSI-ResourceConfig signaling.

[0028] codebookConfig is also configured in CSI-ReportConfig. codebookConfig is the signaling of the codebook configuration for type-1 or type-2 codebook and includes codebook subset restrictions. For one CSI-ResourceConfig, CodebookConfig includes one or two codebook subset restrictions. If two codebook subset restrictions are configured in one CodebookConfig signaling, the number of ports should be the same. If two codebook subset restrictions are configured, each codebook subset restriction is used for one resource group. One resource group is used for one TRP (transmission and reception point).

[0029] In a CSI-ReportConfig, ResourceForChannelMeasurement can only be associated with one CSI-ResourceConfig.

[0030] In Release 17, in CodebookConfig, for the TypeI-SinglePanel codebook, two RI restrictions and two codebook subset restrictions can be configured. The two codebook subset restrictions are used for two different CMR (channel measurement resource) groups. The two RI restrictions are used for different types. In some embodiments, one RI restriction is used for multiple TRPs and the other is used for a single TRP.

[0031] CodebookConfig-r17::= SEQUENCE{

[0032] typeI-SinglePanel-Group1-r17 SEQUENCE{

[0033] typeI-SinglePanel-Group2-r17 SEQUENCE{

[0034] typeI-SinglePanel-ri-RestrictionSTRP-r17BIT STRING(SIZE(8))OPTIONAL,--Need R

[0035] typeI-SinglePanel-ri-RestrictionSDM-r17BIT STRING(SIZE(4))OPTIONAL--Need R

[0036] }

[0037] In Release 17, in the CSI report, the UE can report N (N>=1) pairs / groups and M (M>1) beams in each pair / group, and can receive different beams within a pair / group at the same time.

[0038] The time domain behavior of the CSI-RS resources within the CSI resource setting is indicated by the high-level parameter resourceType and can be set to aperiodic, periodic or semi-persistent. For periodic and semi-persistent CSI resource settings, when the UE is configured with groupBasedBeamReporting-r17, the number of configured CSI resource sets is S=2, each CSI resource set is used for one TRP, otherwise the number of configured CSI-RS resource sets is limited to S=1.

[0039] The number of ports for CSI-RS is configured by nrofPorts in CSI-ResourceMapping, which is associated with NZP-CSI-RS-Resource. NZP-CSI-RS-Resource is associated with NZP-CSI-RS-ResourceSet. NZP-CSI-RS-Resource is associated with CSI-ResourceConfig. CSI-ResourceConfig is associated with CSI-ReportConfig. nrofPorts can be one of the following: p1 (1 port), p2, p4, p8, p12, p16, p24, p32.

[0040] In this patent, the power offset corresponds to powerControlOffset or powerControlOffsetSS. In this patent, the number of ports refers to the number of CSI-RS ports.

[0041] powerControlOffset: This is the assumed ratio of PDSCH EPRE to NZP CSI-RS EPRE when the UE derives CSI feedback and is in the range of [-8, 15] dB in steps of 1 dB.

[0042] powerControlOffsetSS: This is the assumed ratio of NZP (non-zero power) CSI-RS EPRE to SS / PBCH block EPRE (energy per resource element).

[0043] If the number of base station antennas changes, the channel may change. It would be helpful if the UE could provide channel measurements for different numbers of antenna ports. In the prior art, most CSI-RS resource configurations and CSI report configurations are configured through RRC (Radio Resource Control) signaling. Typically, one CSI-ReportConfig is associated with a CSI-ResourceConfig with one number of ports. That is, one CSI report only includes a report on one number of ports. If the UE needs to report CSI for multiple numbers of ports, the UE should report multiple CSIs in multiple CSI reports, and each CSI report includes a report on one number of ports. One CSI report requires one configuration of the CSI-ReportConfig. Therefore, the method requires multiple CSI-ReportConfig signaling. Since the number of CSI-ReportConfigs for one BWP is limited, it is inappropriate to configure multiple CSI-ReportConfigs to report CSI for multiple numbers of ports.

[0044] In this patent, a method is provided in which a UE reports multiple CRIs, RIs, CQIs, LIs (layer indicators), L1-RSRPs (layer 1 reference signal received power), L1-SINRs (signal to interference and noise ratio) or PMIs for multiple port numbers associated with a reporting configuration in a single reporting instance.

[0045] 2. Embodiment 1

[0046] frame

[0047] On the UE side, you can perform the following operations:

[0048] Receive RRC signaling, the RRC signaling including at least a CSI report configuration and a CSI resource configuration. The CSI report configuration is associated with more than one resource. More than one resource is associated with more than one resource category. Each resource category may be associated with one or more resources. The CSI report configuration corresponds to a combined CSI report configuration.

[0049] CSI reporting is performed according to RRC signaling. Each resource category report is reported in one CSI report. Each report is generated according to one resource category. In some embodiments, the CSI report corresponds to a combined CSI report.

[0050] In some embodiments, the CSI reporting configuration is associated with one or more resources. The resources are associated with one or more resource categories.

[0051] The resource category includes at least one of the following: the number of ports associated with the CSI-RS resource, the power offset associated with the CSI-RS resource, the TCI (Transmission Configuration Indication) state associated with the CSI-RS resource, or the index or group index associated with the CSI-RS resource.

[0052] Configuration Information

[0053] In some embodiments, the CSI report configuration is associated with one or more resources. The resource is associated with a resource category. The resource category is a first port quantity.

[0054] The UE generates a CSI report based on a measurement of a CSI-RS configured with a first number of ports. In order for the UE to report multiple CSIs for different numbers of ports or different resource categories in one CSI report, some reporting parameters may be configured. The reporting parameters are used to select a portion of CSI-RS ports from the CSI-RS resources configured with the first number of ports. The UE uses the selected portion of the CSI-RS ports to generate a CSI report for another resource category.

[0055] 1. The UE may receive high-level signaling. The high-level signaling may be MAC CE signaling or RRC signaling. The high-level signaling includes at least one of the following: multiple CSI report indications, the number of reports in one CSI report indication, the maximum number of reports in one CSI report indication, CSI report configuration, CSI resource configuration. (In some embodiments, the CSI report configuration corresponds to CSI-ReportConfig, and the CSI resource configuration corresponds to CSI-ResourceConfig.)

[0056] In some embodiments, the RRC signaling includes reporting parameters and a combined CSI report configuration. The reporting parameters include at least one of the following: beam parameters, a port number list, a power offset list, a factor list, a port indication list, a reporting number, or a mapping parameter.

[0057] In some embodiments, the reporting parameters are configured in a combined CSI reporting configuration.

[0058] In some embodiments, the combined CSI report configuration is associated with a CSI-RS resource. The gNB sends a CSI-RS based on the CSI-RS resource. In some embodiments, the UE reports a combined CSI report, the combined CSI report including one or more CSI reports based at least on the CSI-RS.

[0059] In some embodiments, the combined CSI report includes one or more CSI reports. Each CSI report in the combined CSI report is based on the same CSI-RS resource and / or reporting parameters.

[0060] In some embodiments, the beam parameter indicates at least one of: an azimuth angle of the beam, a beam tilt angle, a horizontal beam width, a vertical beam width, or a horizontal azimuth angle of the beam.

[0061] In some embodiments, the RRC signaling includes a reporting parameter and a combined CSI report configuration. The combined CSI report configuration is associated with a CSI-RS resource configured with a first port number. The UE is also configured with one or more beam parameters, each beam parameter is associated with a port number. The UE may also be configured with a port number list, which indicates which CSI report needs to be reported. In some embodiments, the first port number is the maximum port number among the number of ports configured in the CSI-RS resource and the number of ports associated with the beam parameter. In some embodiments, the first port number is the maximum port number among the number of ports configured in the port number list.

[0062] For example, the UE is configured with a combined CSI report configuration. The combined CSI report configuration is associated with a CSI-RS resource configured with beam parameters for a first number of ports and a second number of ports. For example, the first number of ports is 32 and the second number of ports is 8. The UE needs to report CSI reports for 32 ports and 8 ports in a combined CSI report. The CSI report for 32 ports is based on the CSI-RS resource configured with 32 ports. The CSI report for 8 ports is based on a portion of the CSI-RS resource configured with 32 ports and beam parameters for 8 ports.

[0063] The port quantity list indicates which port quantity CSI reports should be reported in the combined CSI report. For example, the port quantity list is {B1, B2, B3}. The UE needs to report a combined CSI report, and the combined CSI report includes CSI reports for the B1 port quantity, CSI reports for the B2 port quantity, and CSI reports for the B3 port quantity. For example, the port quantity list is {32, 16, 8}. The UE reports a combined CSI report. The combined CSI report includes CSI reports for 32 ports, CSI reports for 16 ports, and CSI reports for 8 ports. In some embodiments, each CSI report is associated with a different CSI-RS resource. In some embodiments, each CSI report is associated with the same CSI-RS resource.

[0064] The power offset list indicates which power offset CSI reports should be reported in the combined CSI report. For example, the power offset list is {A1, A2, A3}. The UE reports a combined CSI report. The combined CSI report includes a CSI report for A1 power offset, a CSI report for A2 power offset, and a CSI report for A3 power offset. In some embodiments, each CSI report is associated with a different CSI-RS resource. In some embodiments, each CSI report is associated with the same CSI-RS resource.

[0065] The factor list is used to determine which port number CSI reports should be reported in the combined CSI report. For example, a combined CSI report configuration is associated with a CSI-RS resource having a first number of ports (e.g., K ports) and a factor list {K1, K2, K3}. The factors in the factor list are used to determine the second number of ports by dividing the first number of ports by the factors. In this example, the UE reports a combined CSI report. The combined CSI report includes a CSI report for K / K1 ports, a CSI report for K / K2 ports, and a CSI report for K / K3 ports. For example, a combined CSI report configuration is associated with a CSI-RS resource having 32 ports and a factor list {1, 2, 4}. The UE reports a combined CSI report. The combined CSI report includes a CSI report for 32 / 1=32 ports, a CSI report for 32 / 2=16 ports, and a CSI report for 32 / 4=8 ports. In some embodiments, each CSI report is associated with a different CSI-RS resource. In some embodiments, each CSI report is associated with the same CSI-RS resource. For another example, the factors in the factor list are fractions. Or the factors in the factor list are decimals. The factor is a value greater than or equal to 0 and less than or equal to 1. The factor is used to multiply the value of the number of ports. For example, a combined CSI report configuration is associated with a CSI-RS resource having a first number of ports (e.g., K ports) and a factor list {K1, K2, K3}. The factors in the factor list are used to determine the second number of ports by multiplying the first number of ports by the factors. In this example, the UE reports a combined CSI report. The combined CSI report includes a CSI report for K*K1 ports, a CSI report for K*K2 ports, and a CSI report for K*K3 ports. For example, a combined CSI report configuration is associated with a CSI-RS resource having 32 ports and a factor list {1, 1 / 2, 1 / 4}. The UE reports a combined CSI report. The combined CSI report includes 32*1=32 ports of CSI reports, 32*1 / 2=16 ports of CSI reports, and 32*1 / 4=8 ports of CSI reports. In some embodiments, each CSI report is associated with a different CSI-RS resource. In some embodiments, each CSI report is associated with the same CSI-RS resource.

[0066] The port indication list indicates one or more port indications. Each port indication represents one or more port indexes. For example, a combined CSI report configuration is associated with a CSI-RS resource having 32 ports and a port indication list {{0,1,2,3}, {0,1,2,3,4,5,6,7} and {0,1,2,3,4...,31}}. The UE reports a combined CSI report. The combined CSI report includes CSI reports for 32 ports (CSI-RS with port index {0,1,2,3,4...,31}), CSI reports for 8 ports (CSI-RS with port index {0,1,2,3,4,5,6,7}) and CSI reports for 4 ports (CSI-RS with port index {0,1,2,3}).

[0067] The number of reports indicates the number of CSI reports in the combined CSI report. For example, the UE is configured with a combined CSI report configuration and a number of reports (e.g., 4, 3, 2, 1, 5, 6, 7, 8). The combined CSI report configuration is associated with one or more CSI-RS resources. The UE reports the best 4 CSI reports in the combined CSI report according to the CSI-RS resources. For another example, the UE is configured with a combined CSI report configuration and a number of reports (e.g., 4). The combined CSI report configuration is associated with one CSI-RS resource and one or more reporting parameters. The one or more reporting parameters are used for CSI reports of other port numbers. The UE reports the best 4 CSI reports in the combined CSI report according to the CSI-RS resources and the reporting parameters.

[0068] In some embodiments, only the number of ports is indicated. The UE should know which ports are used. For example, the UE is only indicated that the UE should report CSI reports for 8 ports and CSI reports for 32 ports. However, the UE is only configured with CSI-RS resources for 32 ports. Then the UE does not know which 8 of the 32 ports should be used for CSI reports for 8 ports. In order to determine which ports should be used / selected, the ports are determined based on predefined information or signaling. In some embodiments, the predefined information includes at least one of the following: from low index to high index, from high index to low index, or port index {0, 0+X, 0+2X,...}.

[0069] In some embodiments, N1 and N2 are used to indicate or determine the number of antenna ports in the horizontal and vertical directions. The number of CSI-RS ports is equal to N1*N2*2. N1*N2*2 antennas form an antenna array. Each port corresponds to an antenna unit. In some embodiments, N1 and N2 are used to indicate or determine the number of antenna ports in the first and second directions.

[0070] In some embodiments, the predefined information includes at least a port index {0, 1, 1*N2*2, 1*N2*2+1, .., (N1-1)*N2*2, (N1-1)*N2*2+1,

[0071] 2*1,2*1+1,1*N2*2+2*1,1*N2*2+2*1+1,...,(N1-1)*N2*2+2*1,(N1-1)*N2*2+2*1+1,...,

[0072] The order is 2*(N2-1),2*(N2-1)+1,2*(N2-1)+1*N2*2,2*(N2-1)+1*N2*2+1,...,2*(N2-1)+(N1-1)*N2*2,2*(N2-1)+(N1-1)*N2*2+1}.

[0073] For example, 8 ports are selected from 32 ports (eg, N1=4, N2=4), and the port indexes are {0, 1, 8, 9, 16, 17, 24, 25}.

[0074] In some embodiments, the predefined information includes at least the following port index sequence: {0, 1, 1*N1*2, 1*N1*2+1, .., (N2-1)*N1*2, (N2-1)*N1*2+1,

[0075] 22*1,2*1+1,1*N1*2+2*1,1*N1*2+2*1+1,...,(N2-1)*N1*2+2*1,(N2-1)*N1*2+2*1+1,...,

[0076] 2*(N1-1),2*(N1-1)+1,2*(N1-1)+1*N1*2,2*(N1-1)+1*N1*2+1,...,2*(N1-1)+(N2-1)*N1*2,2*(N1-1)+(N2-1)*N1*2+1}.

[0077] For example, 8 ports are selected from 32 ports (eg, N1=4, N2=4), and the port indexes are {0, 1, 8, 9, 16, 17, 24, 25}.

[0078] In some embodiments, the predefined information includes at least the following port index sequence: {0, N1*N2, 0+X, N1*N2+X, 0+2X, N1*N2+2X, ...}. For example, 8 ports are selected from 32 ports (e.g., N1=4, N2=4), and the port index is {0, 16, 4, 20, 8, 24, 12, 28}.

[0079] In some embodiments, the predefined information includes at least the following port index sequence: {0, N1*N2, 1, N1*N2+1, 2, N1*N2+2, ...}. For example, 8 ports are selected from 32 ports (e.g., N1=4, N2=4), and the port indexes are {0, 16, 1, 17, 2, 18, 3, 19}.

[0080] For example, the predefined information may be from low index to high index. Then the 8 ports are indicated by the port index {0, 1, 2, 3, 4, 5, 6, 7} of the 32-port CSI-RS.

[0081] For example, the predefined information may be from high index to low index. Then the 8 ports are indicated by the port index {31, 30, 29, 28, 27, 26, 25, 24} of the 32-port CSI-RS.

[0082] For example, the predefined information may be port index {0, 0+X, 0+2X, ...} Then, in order to find 8 ports from 32 ports, X=32 / 8=4, and these 8 ports are indicated by the port index {0, 4, 8, 12, 16, 20, 24, 28} of the 32-port CSI-RS.

[0083] In some embodiments, the ports are determined based on signaling. The signaling indicates a port index. For example, the signaling indicates a port index {0, 2, 5, 7, 9, 10, 23, 24}, which means that these ports have been selected.

[0084] In some embodiments, the signaling indicates a bitmap. The length of the bitmap is the same as the first number of ports. Each bit in the bitmap corresponds to a port index. For example, '0' indicates that the corresponding port is not selected, and '1' indicates that the corresponding port is selected. In some embodiments, the signaling indicates a bitmap. The length of the bitmap is less than the first number of ports. Each bit in the bitmap corresponds to X consecutive port indexes. For example, '0' indicates that the corresponding X ports are not selected, and '1' indicates that the corresponding X ports are selected. In some embodiments, the signaling indicates a bitmap. The length of the bitmap is less than the first number of ports. Each bit in the bitmap corresponds to X port indexes. For example, '0' indicates that the corresponding X ports are not selected, and '1' indicates that the corresponding X ports are selected.

[0085] The mapping parameters indicate the mapping relationship between gNB antennas and CSI-RS ports.

[0086] In some embodiments, port indices {0, 1, 2, ... 31} correspond to antenna ports {3000, 3001, 3002, ..., 3031}.

[0087] In some embodiments, N1 and N2 are used to indicate the number of antennas in the horizontal and vertical directions. The number of CSI-RS ports is equal to N1*N2*2. N1*N2*2 antennas form an antenna array. Each port corresponds to an antenna element. The following includes some examples of mapping between port indexes and antenna elements.

[0088] Example 1: Figure 2 As shown, the port index mapping starts with the polarization direction at the same position. After sorting all polarization directions at a position, the mapping then sorts the antenna arrays of the next two antenna elements at the same position in the same column, and so on. After finishing sorting all elements in the column, the mapping then sorts the next column until all antenna elements are sorted.

[0089] Example 2: Figure 3 It is shown that the port index mapping starts from the polarization direction, and the antennas in the same polarization direction are sorted first. The antennas in the same polarization direction are sorted in the order of row first and column later. After all antenna elements in the same polarization direction are sorted, the other antenna elements in another polarization direction are sorted.

[0090] For another example, the port index mapping starts with the polarization direction, and the antennas in the same polarization direction are sorted first. The antennas in the same polarization direction are sorted in the order of columns first and rows later. After all antenna units in the same polarization direction are sorted, the other antenna units in another polarization direction are sorted.

[0091] Example 3: Figure 4 As shown, the port index mapping starts with the polarization direction at the same position. After sorting all polarization directions at the same position, the mapping then sorts the antennas of the next two antenna elements at the same position in the same row, and so on. After finishing sorting all elements in the row, the mapping then sorts the next row until all antenna elements are sorted.

[0092] In the above example, the first port index is associated with (or mapped to) an antenna unit in the upper row and left column and in the first polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the upper row and left column and in the second polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the lowest row and left column and in the first polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the lowest row and left column and in the second polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the upper row and right column and in the first polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the upper row and right column and in the second polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the lowest row and right column and in the first polarization direction. In some embodiments, the first port index may be associated with an antenna unit in the lowest row and right column and in the second polarization direction. In some embodiments, the first polarization direction is a -45° polarization direction, and the second polarization direction is a 45° polarization direction. In some embodiments, the first polarization direction is a 45° polarization direction, and the second polarization direction is a -45° polarization direction.

[0093] For example, Figure 5 It is shown that the first port index is mapped to the antenna element in the lowest row and left column and the first polarization direction. The port index mapping starts with the polarization direction in the same cell first. After all polarization directions in one cell are sorted, the mapping continues to sort the antennas of the next cell in the same column, and so on. After finishing sorting all cells in the column, the mapping continues to sort the next column until all antennas are sorted.

[0094] In some embodiments, the mapping parameters indicate a mapping between port indices and antenna elements.

[0095] In some embodiments, the RRC signaling indicates at least a list of port quantities. The combined CSI report configuration is associated with a CSI-RS resource configured with a first number of ports. The combined CSI report configuration indicates N1, N2. Each port number in the port number list should be a value equal to an integer multiple of N1 or N2. In some embodiments, the combined CSI report configuration is associated with more than one CSI-RS resource configured with different numbers of ports. The combined CSI report configuration indicates that N1, N2 is used for the maximum number of ports. Each port number of more than one CSI-RS resource should be a value equal to an integer multiple of N1 or N2.

[0096] In some embodiments, the RRC signaling indicates at least a list of port numbers. The combined CSI report configuration is associated with a CSI-RS resource configured with a first number of ports. The combined CSI report configuration indicates N1, N2. The number of available ports in the list of port numbers includes a value equal to an integer multiple of N1 or N2. In some embodiments, the combined CSI report configuration is associated with more than one CSI-RS resource configured with different numbers of ports. The combined CSI report configuration indicates N1, N2. The number of available ports of more than one CSI-RS resource includes a value equal to an integer multiple of N1 or N2.

[0097] In some embodiments, RRC signaling indicates a mapping parameter. The mapping parameter indicates a mapping between a port index and an antenna unit. The mapping parameter is used for a CSI-RS having a first number of ports. If the UE needs to select a second number of ports from the first number of ports, the UE determines the port index based on predefined information (or predefined rules). In some embodiments, the predefined information is a port index selected in a port index order of the antenna unit from a row order and then a column order. For example, using mapping example 1, the port index is {0,1,8,9,16,17,24,25,2,3,...}. In some embodiments, the predefined information is a port index selected in a port index order of the antenna unit from a column order and then a row order. For example, using mapping example 1, the port index is {0,1,2,3,4,5,6,7,8,9,...}. In some embodiments, if the second number of ports is the same as N1*2 or N2*2, the UE can select the port index associated with each row or column, respectively. For example, the UE selects 8 ports from 32 ports. Using mapping example 1, the port indexes can be {0,1,2,3,4,5,6,7}, {8,9,10,11,12,13,14,15}, {16,17,18,19,20,21,22,23}, {24,25,26,27,28,29,30,31}, {0,1,8,9,16,17,24,25}...

[0098] In some embodiments, the predefined information is a port index selected according to a port index order of the antenna unit from a row order first and then a column order. In each position determined by the row and column, the first polarization direction is sorted first, and then the second polarization direction is sorted. In some embodiments, the predefined information is a port index selected according to a port index order of the antenna unit from a column order first and then a row order. In each position determined by the row and column, the first polarization direction is sorted first, and then the second polarization direction is sorted. In some embodiments, the predefined information is a port index selected according to a port index order of the antenna unit starting from the polarization direction first. For each polarization, the column order is sorted first, and then the row order is sorted. In some embodiments, the predefined information is a port index selected according to a port index order of the antenna unit starting from the polarization direction first. For each polarization, the row order is sorted first, and then the column order is sorted.

[0099] In some embodiments, if the second number of ports is the same as A*N1*2 or A*N2*2, the UE may select a port index associated with each A row or each A column, respectively. A is an integer less than 9.

[0100] In some embodiments, the UE is configured with a combined CSI report configuration and a port quantity list. The combined CSI report configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset and a port quantity. The port quantity list indicates which CSI needs to be reported. If the number of ports in the port quantity list is the same as the number of ports associated with the CSI-RS resource, the UE reports the CSI report for the number of ports based on the CSI-RS resource. If the number of ports in the port quantity list is different from the number of ports associated with the CSI-RS resource, the UE needs to select the corresponding number of ports from the ports associated with the CSI-RS resource. The selection process is based on predefined information (or predefined rules) or signaling. The UE uses the CSI-RS transmitted in the selected port to report the CSI report for the number of ports.

[0101] In some embodiments, the UE is configured with a combined CSI report configuration and a port number list. The combined CSI report configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset (P) and a first port number. The port number list indicates which CSI needs to be reported. If the number of ports in the port number list is the same as the first port number associated with the CSI-RS resource, the UE reports the CSI report of the port number based on the CSI-RS resource. If the second port number in the port number list is different from the first port number associated with the CSI-RS resource, the UE needs to select the corresponding second port number from the port associated with the CSI-RS resource. The selection process is based on predefined information (or predefined rules) or signaling. The UE reports the CSI report of the second port number using the CSI-RS transmitted in the selected port and the assumed power offset. The assumed power offset (P2) can be determined by the second port number (T2), the first port number (T1) and the power offset (P). For example, P2 = P-10*log 10 (T2 / T1).

[0102] In some embodiments, the UE is configured with a combined CSI report configuration, a port number list, and a power offset list. Each port number in the port number list is associated with a power offset in the power offset list. The combined CSI report configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset and a port number. The port number list indicates which CSI needs to be reported. If the number of ports in the port number list is the same as the number of ports associated with the CSI-RS resource, the UE reports the CSI report of the port number based on the CSI-RS resource. If the number of ports in the port number list is different from the number of ports associated with the CSI-RS resource, the UE needs to select the corresponding port number from the port associated with the CSI-RS resource. The selection process is based on predefined information (or predefined rules) or signaling. The UE uses the CSI-RS transmitted in the selected port and the corresponding power offset to report the CSI report of the port number.

[0103] In some embodiments, the UE is configured with a combined CSI reporting configuration and a TCI state list. The combined CSI reporting configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset and a port number and / or TCI state. The TCI state list indicates which CSI needs to be reported. For each TCI state in the TCI state list, the UE needs to use the CSI-RS and TCI state to report the CSI of the TCI state.

[0104] In some embodiments, the UE is configured with a combined CSI reporting configuration and a TCI state ID list. The combined CSI reporting configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset and a port number and / or TCI state. The TCI state ID list indicates which CSI needs to be reported. For each TCI state ID in the TCI state ID list, it will be associated with a TCI state. The UE needs to use CSI-RS and TCI state to report the CSI (e.g., L1-RSRP, CRI, or L1-SINR) of the TCI state ID.

[0105] In some embodiments, the UE is configured with a combined CSI report configuration. The combined CSI report configuration is associated with a CSI-RS resource. The CSI-RS resource is associated with a power offset and a first port number. The UE needs to report CSI for each valid port number that is less than or equal to the first port number. If the port number is different from the first port number associated with the CSI-RS resource, the UE needs to select the corresponding port number from the ports associated with the CSI-RS resource. The selection process is based on predefined information (or predefined rules) or signaling. The UE uses the CSI-RS transmitted in the selected port to report the CSI report for the port number.

[0106] Valid port numbers include {1,2,4,8,12,16,24,32}.

[0107] For each port number that is not equal to the first port number, the UE needs to select a corresponding port number from the ports of the CSI-RS resources. The UE uses the CSI-RS transmitted in the selected port to report the CSI report of the port number.

[0108] 3. Embodiment 2

[0109] The UE generates a CSI report based on the measurement of the CSI-RS. In order for the UE to report multiple CSIs with different numbers of ports or different power offsets or different resource categories in one CSI report, different CSI-RSs configured with different numbers of ports, different power offsets, or different resource categories should be associated with one CSI-ReportConfig. In this section, a method for associating one CSI-ReportConfig with multiple CSI-RS resources configured with different numbers of ports, different power offsets, different TCI states, different TCI state IDs, or different resource categories is provided.

[0110] 2. The high-level signaling includes at least one of the following: a multiple CSI report indication, a number of reports in a combined CSI report, a maximum number of reports in a combined CSI report, a port number list, a power offset list, a TCI state list, a TCI state ID list, a group ID list, or a resource type (also corresponding to a resource category) list.

[0111] 2.1. In some embodiments, the higher layer signaling includes a multiple CSI reporting indication. The multiple CSI reporting indication (also corresponding to an indication of enabling combined CSI reporting) is used to indicate whether to enable multiple CSIs reported in one CSI report.

[0112] 2.1.1. In some embodiments, multiple CSIs are reported for different numbers of ports. In some embodiments, multiple CSIs are reported for at least two numbers of ports. In some embodiments, multiple CSIs are reported for different power offsets. In some embodiments, multiple CSIs are reported for different resource types. In other words, CSIs for each number of ports / or power offset / or resource type associated with the same CSI reporting configuration will be included in the combined CSI report.

[0113] 2.1.2. The multiple CSI reporting indication is configured or indicated as 'enabled', which means (implements) at least one of the following:

[0114] 2.1.2.1. Enabled reporting of multiple CSIs in one CSI report;

[0115] 2.1.2.2. Enabled reporting of multiple CSIs for different port numbers in one CSI report;

[0116] 2.1.2.3. Enables reporting of multiple CSIs for different power offsets or different resource types in one CSI report; or

[0117] 2.1.2.4.Multi-CSI configuration is enabled.

[0118] 2.1.2.4.1. Details of multiple CSI configuration are in Example 3.

[0119] 2.1.3. In some embodiments, the multiple CSI reporting indication is a new CSI reporting amount.

[0120] 2.1.3.1. The CSI reporting amount is configured in CSI-ReportConfig and can be set to at least one of 'none', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-CQI', 'cri-RSRP', 'ssb-Index-RSRP' or 'cri-RI-LI-PMI-CQI'.

[0121] 2.1.3.2. New CSI reporting amount indicates the use of multiple CSIs reported in one CSI report and which type of CSI should be reported in the CSI report.

[0122] 2.1.3.2.1. For example, if the new CSI reporting amount is 'cri-RI-i1-multi', multiple CSIs are reported in one CSI report, and CRI, RI, and I1 should be included in each CSI report of the multiple CSI reports.

[0123] 2.1.3.2.2. For another example, the new CSI reporting amount is 'cri-RI-PMI-CQI-multi', then multiple CSIs will be reported in one CSI report, and CRI, RI, PMI, and CQI should be included in each CSI report of the multiple CSI reports. For another example, the new CSI reporting amount is 'cri-RSRP-multi', then multiple CSIs will be reported in one CSI report, and CRI and L1-RSRP should be included in each CSI report of the multiple CSI reports.

[0124] As described above, in order for the UE to report multiple CSIs in one report, a specific configuration is required, and the specific configuration corresponds to a multiple CSI configuration.

[0125] 2.2. In some embodiments, the higher layer signaling includes at least the number of reports in one CSI report (also corresponding to a combined CSI report).

[0126] 2.2.1. In some embodiments, if the number of reports in one CSI report is configured or configured to a value greater than 1, reporting of multiple CSIs in one CSI report is enabled. In other words, if the number of reports in one CSI report is configured or configured to a value greater than 1, the effect is the same as if the multiple CSI reporting indication is configured or indicated as 'enabled'.

[0127] 2.2.2. In some embodiments, if the multiple CSI reporting indication is configured or indicated as 'enabled', the number of reports in one CSI report may be configured.

[0128] 2.2.3. In some embodiments, the number of reports in a CSI report further indicates at least one of the following: the number of different resource types associated with a CSI report configuration, the number of reports that can be reported in a CSI report, the number of resource types associated with a CSI report configuration, the number of codebook configurations associated with a CSI report configuration, the number of codebook subset restrictions associated with a CSI report configuration, the number of RI restrictions associated with a CSI report configuration, the number of CSI resource configurations associated with one CSI report configuration, the number of CSI-RS resource set configurations associated with a CSI resource configuration, the number of resource mapping signaling associated with a CSI-RS resource, the number of resource groups associated with a CSI-RS resource set, and the number of resource groups associated with a CSI report configuration.

[0129] 2.3. In some embodiments, the high-layer signaling includes at least a maximum number of reports in one CSI report. The maximum number of reports in one CSI report indicates at least one of the following: a maximum number of resource types associated with a CSI report configuration, a maximum number of different numbers of resource types associated with a CSI report configuration, and a maximum number of reports that can be reported in one CSI report.

[0130] 2.3.1. In some embodiments, if the maximum number of reports in one CSI report is configured or configured to a value greater than 1, then reporting of multiple CSI in one CSI report is enabled. In other words, if the maximum number of reports in one CSI reporting indication is configured or configured to a value greater than 1, then the effect is the same as if the multiple CSI reporting indication is configured or indicated as 'enabled'.

[0131] 2.3.2. In some embodiments, if the multiple CSI reporting indication is configured or indicated as 'enabled', the maximum number of reports in one CSI reporting indication may be configured.

[0132] 2.3.3. In some embodiments, the maximum number of CSIs reported in one CSI report is V. In some embodiments, V is an integer greater than 2 and less than or equal to 8. For example, V=4.

[0133] 2.3.4. In some embodiments, the maximum number of reports in one CSI report indicates at least one of the following:

[0134] 2.3.4.1. Maximum number of CSI resource configurations associated with one CSI reporting configuration.

[0135] 2.3.4.2. Maximum number of resource types associated with one CSI reporting configuration.

[0136] 2.3.4.3. Maximum number of CSI-RS resource set configurations associated with a CSI resource configuration.

[0137] 2.3.4.4. Maximum number of resource mapping signaling associated with a CSI-RS resource.

[0138] 2.3.4.5. Maximum number of CSI-RS resource set groups associated with a CSI reporting configuration.

[0139] 2.3.4.6. Maximum number of codebook subset restrictions or maximum number of RI restrictions associated with one CSI reporting configuration.

[0140] 2.3.4.7. Maximum number of different port numbers, different power offsets or different TCI states associated with one CSI reporting configuration.

[0141] 2.3.4.8. Maximum number of codebook configurations associated with one CSI reporting configuration.

[0142] 2.3.4.9. Maximum number of CSI-RS resources configured with different port numbers or resource types or power offsets and associated with one CSI reporting configuration.

[0143] 2.4. In some embodiments, the high-level signaling includes at least a list. The list is one of the following lists: a port quantity list, a power offset list, a resource type list, a TCI state list, a TCI state ID list, or a group ID list. The port quantity list includes more than one port quantity. The power offset list includes more than one power offset. The resource type list includes more than one resource type or index. The group ID list includes more than one group ID.

[0144] 2.4.1. In some embodiments, the number of entries in the list indicates the number of CSI reports in one report.

[0145] 2.4.2. In some embodiments, the list indicates the resource of each CSI report in the plurality of CSI reports.

[0146] 2.4.3. In some embodiments, the order of the list is the order of the CSI reports in the plurality of CSI reports.

[0147] 2.4.4. In some embodiments, the order or index of the list is used to combine at least one of "codebook configuration, codebook subset restriction, RI restriction" and resource type.

[0148] 2.4.5. In some embodiments, the list indicates a resource type for each CSI report in the plurality of CSI reports.

[0149] 2.4.6. In some embodiments, each entry in the list is associated with a resource type.

[0150] 2.4.7. In some embodiments, each entry in the list is associated with at least one of a codebook configuration, a codebook subset restriction, or an RI restriction.

[0151] 2.4.8. In some embodiments, each entry in the list is associated with at least one of "TCI State ID or TCI State".

[0152] 2.4.9. In some embodiments, the TCI state list includes more than one TCI state, each TCI state is associated with one or more CSI-RS resources.

[0153] 2.4.10. In some embodiments, the TCI state ID list includes more than one TCI state ID, each TCI state ID is associated with one or more CSI-RS resources.

[0154] For example, Figure 6 As shown, a port quantity list is configured in the CSI report configuration (CSI-ReportConfig), and multiple codebookConfigs are also configured. Then, each codebookConfig is used for a port quantity in the port quantity list in sequence.

[0155] 2.5. In some embodiments, at least one of a multiple CSI reporting indication, a number of reports in one CSI report, a maximum number of reports in one CSI report, and a list is configured in the CSI report configuration.

[0156] 4. Embodiment 3

[0157] As mentioned above, one report is used for one resource type, and each report is based on a different CSI-RS resource. Multiple reports in one CSI report. This section describes how to combine CSI-RS resources and CSI report configurations.

[0158] 3. In order to enable multiple CSI reports to be reported in one report, multiple CSI configurations are required.

[0159] The multi-CSI configuration includes at least one of the following:

[0160] 3.1. A CSI resource configuration is associated with more than one CSI-RS resource set.

[0161] 3.1.1. Different CSI-RS resource sets are associated with at least one of: different resource types, different power offsets, different number of ports, different TCI states, different TCI state IDs, or different groups. In some embodiments, the CSI-RS resource set configuration corresponds to NZP-CSI-RS-ResourceSet.

[0162] 3.1.2. Different CSI-RS resource sets also correspond to CSI-RS resources with different resource types.

[0163] 3.1.3. Each CSI-RS resource set may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, codebook subset restriction.

[0164] 3.1.4. In some embodiments, the number of ports configured in a CSI-RS resource set is the same, and the number of ports of different CSI-RS resources may be different. In some embodiments, the TCI states associated with the CSI-RS resources in a CSI-RS resource set are the same. The TCI states associated with the CSI-RS resources of different CSI-RS resources may be different.

[0165] 3.1.5. Below Figure 7 An example is shown in FIG.

[0166] In some embodiments, more than one CSI-RS resource set is divided into different groups and associated with a group ID / index. The CSI-RS resource sets in different groups are equal to CSI-RS resources with different resource types. Each group can be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction or codebook subset restriction.

[0167] 3.2. The CSI-RS resource set configuration includes more than one CSI resource configured with different resource types;

[0168] 3.2.1. Each CSI resource configured with different resource types may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, or codebook subset restriction. In some embodiments, qcl-InfoPeriodicCSI-RS in different CSI-RS (or CSI) resources are configured with different values.

[0169] In some embodiments, the CSI-RS resource set configuration includes more than one CSI resource. The more than one CSI resource is divided into more than two groups. Each group may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, or codebook subset restriction. Different groups correspond to different resource types. In some embodiments, the CSI-RS resource set configuration includes more than one CSI resource. The more than one CSI resource is divided into two groups. Each group may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, or codebook subset restriction. Different groups correspond to different TCI states or TCI state IDs. In some embodiments, qcl-InfoPeriodicCSI-RS in different groups are configured with different values.

[0170] 3.3.CSI-RS resource (NZP-CSI-RS-Resource) includes more than one resource mapping (ResourceMapping) signaling.

[0171] 3.3.1. Different resource mapping signaling includes at least one of the following: different number of ports, different group index / ID.

[0172] 3.3.2. Each resource mapping signaling may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, codebook subset restriction.

[0173] 3.3.3. Each resource mapping is equal to a resource configured with a resource type.

[0174] For example, Figure 8 As shown, one NZP-CSI-RS-Resource is associated with three resource mapping signalings. In some embodiments, the nrofPorts in different resource mapping signalings are different. In some embodiments, different resource mappings include at least one of the following: different frequencyDomainAllocation, different cdm-type, different density, or the same nrofPorts.

[0175] For example, Fig. 9 As shown, each resource mapping is associated with a codebookConfig. In some embodiments, nrofPorts in different resource mapping signalings are different.

[0176] 3.4. The CSI reporting configuration is associated with more than one CSI resource configuration;

[0177] 3.5. A CSI reporting configuration may be associated with more than one CSI resource configuration for channel measurement.

[0178] 3.5.1. Different CSI resource configurations are associated with at least one of the following: different resource types, different power offsets, different numbers of ports, different groups.

[0179] 3.5.2. Each CSI resource configuration corresponds to a CSI resource with a configured resource type.

[0180] 3.5.3. Each CSI resource configuration may be associated with at least one of the following: codebookConfig, RI (rank indicator) restriction, codebook subset restriction.

[0181] 3.5.4. In some embodiments, CSI resource configurations associated with the same CSI reporting configuration are associated with the same BWP (ID).

[0182] 3.5.5. As follows Fig.10 In one example shown, resourcesForChannelMeasurementList (which may also be resourcesForChannelMeasurement) in CSI-reportConfig is associated with multiple CSI-ResourceConfigs, and different CSI-ResourceConfigs include CSI-RS resources associated with different numbers of ports.

[0183] 3.6. The CSI report configuration includes more than one codebook configuration.

[0184] 3.6.1. In some embodiments, each codebook configuration is associated with a resource type.

[0185] 3.6.2. In some embodiments, each codebook configuration is used for one CSI report among multiple CSI reports.

[0186] 3.7. The CSI report configuration includes a codebook configuration, which includes one or more codebook subset restrictions or one or more RI restrictions.

[0187] 3.7.1. In some embodiments, each codebook subset restriction or RI restriction is associated with one resource type.

[0188] 3.7.2. In some embodiments, each codebook subset restriction or RI restriction is used for one CSI report among multiple CSI reports.

[0189] In some embodiments, a combined CSI reporting configuration is associated with a plurality of different CSI-RS resources.

[0190] In some embodiments, a plurality of different CSI-RS resources include one CSI-RS resource. In some embodiments, a combined CSI report including a set of CSI reports is obtained based on one CSI-RS resource. For example, each CSI report in the combined CSI report is based on the same CSI-RS resource and an assumed number of ports. For another example, each CSI report in the combined CSI report is based on the same CSI-RS resource and an assumed power offset. The assumed number of ports or the assumed power offset is configured via RRC signaling (e.g., a port number list or a power offset list).

[0191] In some embodiments, each different CSI-RS resource or CSI-RS resources configured with different resource types can be a CSI-RS resource setting, a CSI-RS resource set, a CSI-RS resource group, a group of CSI-RS resource sets, or a resource mapping.

[0192] In some embodiments, the combined CSI reporting configuration includes a codebook configuration, and the codebook configuration includes at least one of the following: one or more bitmaps for codebook subset restriction, one or more bitmaps for rank indicator (RI) restriction, codebook subset restriction or RI restriction.

[0193] In some embodiments, the length of the bitmap for codebook subset restriction is the same as the length of the codebook subset restriction, or the length of the bitmap for RI restriction is the same as the length of the codebook subset restriction.

[0194] In some embodiments, the length of the bitmap for codebook subset restriction is smaller than the length of the codebook subset restriction, or the length of the bitmap for RI restriction is smaller than the length of the codebook subset restriction.

[0195] In some embodiments, the length (A) of the bitmap for codebook subset restriction is obtained by dividing the length (B) of the codebook subset restriction by an integer (C), or the length (A1) of the bitmap for RI restriction is obtained by dividing the length (B1) of the RI restriction by an integer (C1).

[0196] In some embodiments, C or C1 is equal to the number of ports associated with the first CSI report divided by the number of ports associated with another CSI report.

[0197] In some embodiments, codebookConfig includes at least a codebook subset restriction and one or more bitmaps for the codebook subset restriction. The codebook subset restriction is for the first CSI report in the combined CSI report. The codebook subset restriction of other CSI reports in the same combined CSI report is obtained by the bitmap and the codebook subset restriction of the first CSI report. For example, each bit in the bitmap indicates whether the corresponding bit in the codebook subset restriction is used to constitute the codebook subset restriction of other CSI reports. For another example, each bit in the bitmap is associated with a group of bits in the codebook subset restriction. Each bit in the bitmap indicates whether the corresponding bit in the codebook subset restriction is used to constitute the codebook subset restriction of other CSI reports.

[0198] In some embodiments, codebookConfig includes at least RI restrictions and one or more bitmaps for RI restrictions. The RI restrictions are for the first CSI report in the combined CSI report. The RI restrictions of other CSI reports in the same combined CSI report are obtained by the bitmap and the RI restrictions of the first CSI report. For example, each bit in the bitmap indicates whether the corresponding bit in the RI restriction is used to form the RI restrictions of other CSI reports. For another example, each bit in the bitmap is associated with a group of bits in the RI restriction. Each bit in the bitmap indicates whether the corresponding bit in the RI restriction is used to form the RI restrictions of other CSI reports.

[0199] In some embodiments, the first CSI report is a CSI report associated with a maximum number of ports or a maximum power offset or a minimum power offset.

[0200] In some embodiments, multiple different CSI-RS resources associated with the combined CSI report configuration will be restricted to the same time slot. In other words, the CSI-RS is sent / received in one time slot. In some embodiments, multiple different CSI-RS resources associated with the combined CSI report configuration will be restricted to 1ms. In some embodiments, multiple different CSI-RS resources associated with the combined CSI report configuration will be restricted to X consecutive time slots without DL / UL switching between time slots, where X is an integer greater than or equal to 0 and less than 20. In some embodiments, multiple different CSI-RS resources associated with the combined CSI report configuration will be restricted to X consecutive time slots, where X is an integer greater than or equal to 0 and less than 20.

[0201] In some embodiments, a plurality of different CSI-RS resources associated with the combined CSI reporting configuration are configured within the same DRX activation time. In other words, the CSI-RS are transmitted / received within the same DRX activation time.

[0202] In some embodiments, the combined CSI report includes a group of CSI reports. In some embodiments, the combined CSI report includes at least one of the following: multiple RIs, multiple CRIs, multiple PMIs, multiple CQIs, multiple L1-RSRPs, multiple L1-SINRs, multiple differential L1-RSRPs, or multiple differential L1-SINRs. In some embodiments, each CSI report of the group of CSI reports includes at least one of the following: RI, CRI, PMI, CQI, L1-RSRP, L1-SINR, differential L1-RSRP, or differential L1-SINR. The differential L1-RSRP value is calculated with a 2dB step size with reference to the maximum measured L1-RSRP value as part of the same combined CSI report. In some embodiments, L1-RSRP includes L1-RSRP and differential L1-RSRP. The differential L1-RSRP value is calculated with a 1dB step size with reference to the maximum measured L1-SINR value as part of the same combined CSI report. In some embodiments, the L1-SINR includes L1-SINR and differential L1-SINR. In some embodiments, in a combined CSI report, the UE reports a maximum measured L1-RSRP value and a plurality of differential L1-RSRP values ​​based on the associated CSI-RS resource. In some embodiments, in a combined CSI report, the UE reports a maximum measured L1-SINR value and a plurality of differential L1-SINR values ​​based on the associated CSI-RS resource. In some embodiments, in a combined CSI report, the UE reports a plurality of measured L1-RSRP values. In some embodiments, in a combined CSI report, the UE reports a plurality of measured L1-SINR values.

[0203] In some embodiments, in a combined CSI report, the UE reports X L1-RSRP values ​​for each resource type (e.g., TCI state or TCI state ID). In some embodiments, the X value is configured by RRC signaling. In some embodiments, X is indicated by DCI. In some embodiments, X is indicated by MAC CE. X is an integer greater than or equal to 0 and less than 9. In some embodiments, in a combined CSI report, the UE reports different numbers of L1-RSRP values ​​for different types of resource types (e.g., TCI state or TCI state ID). In some embodiments, in a combined CSI report, the UE reports different numbers of L1-RSRP values ​​for different resource types (e.g., number of ports, power offset).

[0204] In some embodiments, the combined CSI report configuration is associated with a CSI resource configuration. The CSI resource configuration includes CSI resources configured with different power offsets or different numbers of ports. The UE calculates CSI (e.g., RI, CQI, PMI) based on CSI resources configured with different power offsets or different numbers of ports. The UE reports a CSI report (e.g., RI, CQI, or PMI) associated with a specific resource and resource indication.

[0205] In some embodiments, the combined CSI report configuration is associated with one or more CSI resource configurations. The one or more CSI resource configurations include multiple CSI resources configured with different numbers of ports and different TCI states (or different TCI state IDs). CSI resources configured with the same number of ports are associated with one or more TCI states (or TCI state IDs), respectively. The UE reports multiple CSIs (e.g., L1-RSRP or L1-SINR) for each number of ports. For example, the combined CSI report configuration is associated with a CSI resource configuration. The CSI resource configuration includes Y CSI resources configured with U numbers of ports and V TCI states. Y CSI resources are divided into U groups. CSI resources in the same group are associated with the same number of ports and TCI states. CSI resources in the same group are associated with the same or different TCI states. TCI states associated with CSI resources in the same group include V TCI states. The UE reports V CSIs (e.g., L1-RSRP or L1-SINR) for each group. Therefore, the UE reports V*U CSIs in the combined CSI report.

[0206] In some embodiments, the combined CSI report configuration is associated with one or more CSI resource configurations. The one or more CSI resource configurations include multiple CSI resources configured with different power offsets and different TCI states (or different TCI state IDs). CSI resources configured with the same power offset are associated with one or more TCI states (or TCI state IDs), respectively. The UE reports multiple CSIs (e.g., L1-RSRP or L1-SINR) for each power offset. For example, the combined CSI report configuration is associated with a CSI resource configuration. The CSI resource configuration includes Y CSI resources configured with U power offsets and V TCI states. Y CSI resources are divided into U groups. CSI resources in the same group are associated with the same power offset and TCI state. CSI resources in the same group are associated with the same or different TCI states. The TCI states associated with CSI resources in the same group include V TCI states. The UE reports V CSIs (e.g., L1-RSRP or L1-SINR) for each group. Therefore, the UE reports V*U CSIs in the combined CSI report.

[0207] In some embodiments, the combined CSI report configuration is associated with one or more CSI resource configurations. The one or more CSI resource configurations include multiple CSI resources configured with different power offsets, different numbers of ports, and different TCI states (or different TCI state IDs). CSI resources configured with the same power offset and the same number of ports are associated with one or more TCI states (or TCI state IDs), respectively. The UE reports multiple CSIs (e.g., L1-RSRP or L1-SINR) for each power offset and number of ports. For example, the combined CSI report configuration is associated with a CSI resource configuration. The CSI resource configuration includes Y CSI resources configured with U power offsets, U number of ports, and V TCI states. Y CSI resources are divided into U groups. CSI resources in the same group are associated with the same power offset, the same number of ports, and TCI states. CSI resources in the same group are associated with the same or different TCI states. TCI states associated with CSI resources in the same group include V TCI states. The UE reports V CSIs (e.g., L1-RSRP or L1-SINR) for each group. Therefore, the UE reports V*U CSIs in the combined CSI report.

[0208] A specific resource is at least one of the following:

[0209] The CSI resource associated with the maximum RI, maximum CQI or maximum RSRP.

[0210] The resource indication indicates at least one of the following: which CSI resources the CSI report is associated with, a port indication, a number of ports, a power offset, an increment of a number of ports, an increment of a power offset.

[0211] In some embodiments, the resource indication indicates which CSI resources the CSI report is associated with. In other words, the resource indication indicates a specific resource. The resource indication indicating which CSI resources the CSI report is associated with may correspond to an indication indicating a CRI, a resource index, or a group ID / index.

[0212] In some embodiments, the resource indication indicates a port indication. The port indication indicates which ports are used to generate the CSI report.

[0213] In some embodiments, the resource indication indicates a port number. The port number indicates which port numbers are used (or assumed) to generate the CSI report.

[0214] In some embodiments, the resource indication indicates a power offset. The power offset indicates which power offset is used (or assumed) to generate the CSI report.

[0215] In some embodiments, the resource indication indicates an increment in the number of ports. The increment in the number of ports indicates an offset beyond the first number of ports. The number of ports may be obtained by dividing the first number of ports by the increment in the number of ports and indicates which number of ports are used (or assumed) to generate the CSI report. In another example, the number of ports may be obtained by subtracting the increment in the number of ports from the first number of ports.

[0216] In some embodiments, the resource indication indicates an increment of a power offset. The increment of the power offset indicates an offset beyond the first power offset. The power offset may be obtained by dividing the first power offset by the increment of the power offset and indicates which power offsets are used (or assumed) to generate the CSI report. In another example, the power offset may be obtained by subtracting the increment of the power offset from the first power offset. In another example, the power offset may be obtained by adding the increment of the power offset to the first power offset.

[0217] In some embodiments, the first power offset is a maximum or minimum power offset in the CSI resource configuration. In some embodiments, the first number of ports is a maximum number of ports in the CSI resource configuration.

[0218] In some embodiments, the combined CSI report includes a group of CSI reports, and a CSI resource associated with a CSI report of the group of CSI reports is configured with a power offset value or a port number value.

[0219] In some embodiments, the combined CSI report configuration is associated with the CSI resource configuration. The CSI resource configuration includes one or more CSI resources. The CSI resources have the same number of ports or the same power offset. In some embodiments, the first power offset is the power offset configured in the CSI resource configuration. In some embodiments, the first number of ports is the number of ports configured in the CSI resource configuration. In some embodiments, the UE is also configured with a port number list or a power offset list. The UE uses the CSI resources to generate a CSI report for each number of ports in the port number list, or the UE uses the CSI resources to generate a CSI report for each number of ports in the power offset list. For example, the combined CSI report configuration is associated with the CSI resource configuration. The CSI resource configuration includes one or more CSI resources. The CSI resources have the same number of ports (e.g., 32). The UE is also configured with a port number list (e.g., {32,16}). The UE reports the CSI of 32 ports based on the CSI resources. The UE selects 16 ports from the 32 port CSI resources and reports the CSI of the 16 ports based on the CSI-RS transmitted in the selected 16 ports. For another example, a combined CSI report configuration is associated with a CSI resource configuration. The CSI resource configuration includes one or more CSI resources. The CSI resources have the same power offset (e.g., 2 dB). The UE is also configured with a list of port quantities (e.g., {2 dB, 4 dB}). The UE reports 2 dB of CSI based on the CSI resources. The UE changes the power offset value configured in the CSI resource to 4 dB and reports 4 dB of CSI based on the CSI resource. In some embodiments, the CSI resource corresponds to a CSI-RS resource.

[0220] V. Embodiment 4

[0221] 4. In some embodiments, the time and frequency of a first resource having a first resource type is a subset of the time and frequency of a second resource having a second resource type. The first resource and the second resource are associated with the same CSI reporting configuration.

[0222] 4.1. In some embodiments, the time and frequency of a first resource having a first number of ports is a subset of the time and frequency of a second resource having a second number of ports. The first resource and the second resource are associated with the same CSI reporting configuration. The first number of ports is less than or equal to the second number of ports.

[0223] 4.2. In some embodiments, the time and frequency of the first resource having the first power offset is a subset of the time and frequency of the second resource having the second power offset. The first resource and the second resource are associated with the same CSI reporting configuration. The first power offset is less than or equal to the second power offset.

[0224] In some embodiments, if the time and frequency of the first resource is a subset of the time and frequency of the second resource, and the first resource and the second resource are associated with the same CSI reporting configuration, the gNB sends the CSI-RS only based on the second resource. In some embodiments, if the time and frequency of the first resource is a subset of the time and frequency of the second resource, and the first resource and the second resource are associated with the same CSI reporting configuration, the gNB sends each CSI-RS based on each resource.

[0225] In some embodiments, the combined CSI reporting configuration is associated with one or more CSI resource configurations, a first CSI resource configuration of the one or more CSI resource configurations comprising a first one or more CSI reference signal (CSI-RS) resources, wherein a second CSI resource configuration of the one or more CSI resource configurations comprises a second one or more CSI-RS resources, and wherein the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources.

[0226] In some embodiments, the first CSI resource configuration is the same as the second CSI resource configuration. In other words, the first CSI resource configuration is the second CSI resource configuration. In some embodiments, if the combined CSI report configuration is associated with one CSI resource configuration, the first CSI resource configuration is the second CSI resource configuration.

[0227] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least the time and frequency of the first one or more CSI-RS resources are a subset of the time and frequency of the second one or more CSI-RS resources.

[0228] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least the time or frequency of the first one or more CSI-RS resources is a subset of the time or frequency of the second one or more CSI-RS resources.

[0229] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least N1 associated with the first one or more CSI-RS resources is less than N1 associated with the second one or more CSI-RS resources.

[0230] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least N2 associated with the first one or more CSI-RS resources is less than N2 associated with the second one or more CSI-RS resources.

[0231] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources.At least the number of ports associated with the first one or more CSI-RS resources is less than the number of ports associated with the second one or more CSI-RS resources.

[0232] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources.At least a power offset associated with the first one or more CSI-RS resources is less than a power offset associated with the second one or more CSI-RS resources.

[0233] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least the number of CDM (code division multiplexing) groups associated with the first one or more CSI-RS resources is less than or equal to the number of CDM groups associated with the second one or more CSI-RS resources.

[0234] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least the powerControlOffset values ​​associated with the first one or more CSI-RS resources are less than or equal to the number of powerControlOffset values ​​associated with the second one or more CSI-RS resources.

[0235] In some embodiments, the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. At least the powerControlOffsetSS values ​​associated with the first one or more CSI-RS resources are less than or equal to the number of powerControlOffsetSS values ​​associated with the second one or more CSI-RS resources.

[0236] VI. Example 5

[0237] 5. In some embodiments, the codebook subset restriction or RI restriction or the combination of codebook configuration and resource type is based on csi-ResourceConfigId, or csi-ResourceConfig index, or index, or group number or order.

[0238] For example, the first codebook subset restriction or the first RI restriction or the first codebook configuration to the last codebook subset restriction or the last RI restriction or the last codebook configuration respectively correspond to the CSI-RS resources configured with the minimum number of ports to the CSI-RS resources configured with the maximum number of ports.

[0239] For example, the first codebook subset restriction or the first RI restriction or the first codebook configuration to the last codebook subset restriction or the last RI restriction or the last codebook configuration respectively corresponds to the CSI-RS resource configured with the lowest group ID or the lowest index to the CSI-RS resource configured with the largest group ID or the largest index.

[0240] For example, the first codebook subset restriction or the first RI restriction or the first codebook configuration to the last codebook subset restriction or the last RI restriction or the last codebook configuration respectively correspond to the CSI-RS resource configured with the minimum power offset to the CSI-RS resource configured with the maximum power offset.

[0241] VII. Embodiment 6

[0242] Multiple CSI reports

[0243] 6. If the first condition is met, the UE may report multiple CSIs in one CSI report. Based on the measurement of the CSI resources associated with the CSI reporting configuration, multiple CSI reports are generated. In some embodiments, each CSI report in the multiple CSI reports is associated with a resource type.

[0244] 6.1.CSI Resources

[0245] 6.1.1. In some embodiments, each CSI report in the plurality of CSI reports is based on or associated with a CSI resource configuration (e.g., CSI-ResourceConfig). (Different CSI resource configurations are associated with different resource types.)

[0246] 6.1.2. In some embodiments, each of the multiple CSI reports is based on or associated with a CSI-RS resource set configuration. (Different CSI resource set configurations are associated with different resource types.)

[0247] 6.1.3. In some embodiments, each CSI report in the plurality of CSI reports is based on or associated with a CSI-RS resource set group configuration. (Different CSI resource set group configurations are associated with different resource types. CSI resource sets in a group are associated with the same resource type.)

[0248] 6.1.4. In some embodiments, each of the multiple CSI reports is based on or associated with a CSI-RS resource. (Different CSI-RS resources are associated with different resource types.)

[0249] 6.1.5. In some embodiments, each CSI report in the plurality of CSI reports is based on or associated with a resource mapping. (Different resource mappings are associated with different numbers of ports.)

[0250] 6.1.6. In some embodiments, each CSI report in the plurality of CSI reports is based on or associated with a CSI-RS resource group. (Different CSI-RS resource groups are associated with different resource types. CSI-RS resources in a group are associated with the same resource type.)

[0251] 6.1.7. In other words, if the first condition is met, the UE shall report the CSI for each resource linked to or associated with the CSI reporting configuration in one CSI report. The resource may be one of the following: CSI resource configuration, CSI resource set, CSI resource set group, CSI resource, CSI resource group, resource mapping. Different resources are associated with different resource types.

[0252] 6.2. The first condition is met if one of the following events occurs:

[0253] 6.2.1.UE is configured with multiple CSI reporting indications,

[0254] 6.2.2.UE is configured with multiple CSI reporting indication and set to 'enabled',

[0255] 6.2.3. Multiple CSI configuration is configured or enabled.

[0256] 6.2.4. At least one of the following signaling is configured.

[0257] 6.2.4.1. Number of reports in one CSI report signaling,

[0258] 6.2.4.2. Maximum number of reports in one CSI report signaling,

[0259] 6.2.4.3. Port quantity list,

[0260] 6.2.4.4. Power offset list,

[0261] 6.2.4.5. Group ID List,

[0262] 6.2.4.6. Resource type list,

[0263] 6.2.4.7.TCI status list,

[0264] 6.2.4.8.TCI status ID list.

[0265] 6.3. In each of the plurality of CSI reports, at least one of the following should be reported: RI, CQI, PMI, CRI. In some embodiments, RI, CQI, PMI, CRI correspond to different CSI report types.

[0266] 6.3.1. In some embodiments, each CSI report in the plurality of CSI reports has the same CSI report type / amount. In some embodiments, different CSI reports in the plurality of CSI reports have different CSI report types / amounts.

[0267] 6.4. In some embodiments, if multiple CSI reporting is enabled, at least one of the following CSI reporting quantities may be configured: 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-CQI', 'cri-RI-LI-PMI-CQI'.

[0268] 8. Embodiment 7

[0269] 7. In some embodiments, CSI reporting configurations may be associated with CSI resources with different resource types and multiple codebookConfigs, multiple codebook subset restrictions, or multiple RI restrictions. Each resource type is associated with one codebookConfig or codebook subset restriction or RI restriction. In this embodiment, only one resource type is valid, and only one CSI associated with the valid resource type is reported. There is no need to report CSI associated with other resource types.

[0270] IX. Embodiment 8

[0271] 8. In some embodiments, if multiple CSI reporting is enabled, the multiple CSI configuration should be configured in at least the BWP. The BWP is at least one of the following: an activated BWP, a first BWP, a non-dormant BWP, a default BWP.

[0272] 8.1. In some embodiments, it is not desirable for the UE to switch to BWP without multiple CSI configuration.

[0273] In some embodiments, the combined CSI report configuration is configured in a predefined BWP, wherein the predefined BWP is at least one of: a BWP outside the first activation time, a BWP within the first activation time, a non-sleep BWP, a default BWP, BWP#0, a BWP configured with maximum bandwidth, or a power-saving BWP.

[0274] Fig.11is an exemplary flow chart for sending a combined CSI report. Operation 1102 includes: receiving, by a wireless device, a combined channel state information (CSI) report configuration including resources for channel measurement, wherein the resources for channel measurement include one or more CSI resource configurations. Operation 1104 includes: sending, by the wireless device, a combined CSI report based on the combined CSI report configuration. In some embodiments, the method may be implemented according to embodiments 1-8. In some embodiments, performing other steps of the method may be based on better system performance than conventional protocols.

[0275] In some embodiments, each of the one or more CSI resource configurations is a CSI reference signal (CSI-RS) resource setting. In some embodiments, the combined CSI report includes a group of CSI reports, wherein each of the one or more CSI resource configurations includes one or more CSI reference signal (CSI-RS) resource sets, and wherein each CSI report of the group of CSI reports is based on one of the one or more CSI-RS resource sets. In some embodiments, the combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of one or more CSI-RS resource sets, the same number of codebook subset restrictions as the number of one or more CSI-RS resource sets, or the same number of rank indicator (RI) restrictions as the number of one or more CSI-RS resource sets. In some embodiments, the difference between more than one CSI-RS resource sets in the one or more CSI-RS resource sets is caused by different numbers of antenna ports, different power offsets, or different resource indexes.

[0276] In some embodiments, the combined CSI report includes a group of CSI reports, wherein each of the one or more CSI resource configurations includes one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets includes one or more CSI-RS resources, and wherein each CSI report of the group of CSI reports is based on one or a group of the one or more CSI-RS resources. In some embodiments, the combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups, the same number of codebook subset restrictions as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups, or the same number of rank indicator (RI) restrictions as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups. In some embodiments, the difference between more than one of the one or more CSI-RS resources or more than one group of CSI-RS resources is caused by different numbers of antenna ports, different power offsets, or different resource indexes. In some embodiments, the maximum number of one or more CSI-RS resources or the maximum number of one or more CSI-RS resource groups is greater than 2 and less than or equal to 8. In some embodiments, the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups is greater than 2 and less than or equal to 8.

[0277] In some embodiments, the combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, wherein each of the one or more CSI-RS resources comprises one or more resource mappings, and wherein each CSI report in the set of CSI reports is based on one or a set of the one or more resource mappings. In some embodiments, the combined CSI report configuration comprises at least one of the following: the same number of codebook configurations as the number of one or more resource mappings or the number of one or more resource mapping groups, the same number of codebook subset restrictions as the number of one or more resource mappings or the number of one or more resource mapping groups, or the same number of rank indicator (RI) restrictions as the number of one or more resource mappings or the number of one or more resource mapping groups. In some embodiments, the difference between one or more resource mappings or one or more resource mappings is caused by different numbers of antenna ports, different power offsets, or different resource indexes.

[0278] In some embodiments, the combined CSI report includes a group of CSI reports, wherein each CSI report in the group of CSI reports is configured with a group of CSI resources, and wherein each CSI resource in the group of CSI resources is configured with the same number of ports or the same power offset. In some embodiments, the combined CSI report includes the CSI report and a resource indication, wherein the resource indication represents at least one of the following: a CSI resource associated with the CSI report, a port indication, a number of ports, a power offset, an increment of a number of ports, or an increment of a power offset.

[0279] In some embodiments, the combined CSI report configuration further comprises at least one of: a plurality of codebook configurations, a plurality of codebook subset restrictions, or a plurality of rank indicator (RI) restrictions. In some embodiments, the number of the plurality of codebook configurations, the number of the plurality of codebook subset restrictions, or the number of the plurality of RI restrictions is the same as the number of CSI reports in the combined CSI report. In some embodiments, the combined CSI report configuration further comprises a codebook configuration, wherein the codebook configuration comprises at least one of: one or more bitmaps for codebook subset restrictions, one or more bitmaps for rank indicator (RI) restrictions, codebook subset restrictions, or RI restrictions.

[0280] In some embodiments, a first CSI resource configuration of the one or more CSI resource configurations includes a first one or more CSI reference signal (CSI-RS) resources, and a second CSI resource configuration of the one or more CSI resource configurations includes a second one or more CSI-RS resources, wherein the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. In some embodiments, the one or more CSI resource configurations are restricted to a predefined number of time slots, wherein the predefined number is an integer greater than or equal to 0 and less than 10.

[0281] In some embodiments, receiving a combined CSI reporting configuration includes receiving the combined CSI reporting configuration in a radio resource control (RRC) signaling, wherein the CSI resources in the CSI resource configurations of the one or more CSI resource configurations are configured with the same number of ports or the same power offset, wherein the RRC signaling also includes reporting parameters, and wherein the reporting parameters include at least one of the following: beam parameters, a port number list, a power offset list, a factor list, a port indication, a reporting number, or a mapping parameter.

[0282] In some embodiments, the method further comprises: performing, by the wireless device, measurements on a CSI reference signal (CSI-RS) received via a CSI-RS resource in a CSI resource configuration of one or more CSI resource configurations based on the reporting parameter. In some embodiments, receiving the combined CSI reporting configuration comprises receiving the combined CSI reporting configuration in a radio resource control (RRC) signaling, wherein the RRC signaling further comprises at least one of: an indication of enabling combined CSI reporting, an indication of a minimum or maximum number of CSI reports in the combined CSI report, an indication of a number of CSI reports in the combined CSI report, a list of antenna port identifiers, a list of power offsets, a list of numbers of antenna ports, or a list of resource indexes.

[0283] Fig.12 is an exemplary flow chart for receiving a combined CSI report. Operation 1202 includes: sending, by a network device, a combined channel state information (CSI) report configuration including resources for channel measurement, wherein the resources for channel measurement include one or more CSI resource configurations. Operation 1204 includes: receiving, by a network device, a combined CSI report based on the combined CSI report configuration. In some embodiments, the method may be implemented according to embodiments 1-8. In some embodiments, performing other steps of the method may be based on better system performance than conventional protocols.

[0284] In some embodiments, each of the one or more CSI resource configurations is a CSI reference signal (CSI-RS) resource setting. In some embodiments, the combined CSI report includes a group of CSI reports, wherein each of the one or more CSI resource configurations includes one or more CSI reference signal (CSI-RS) resource sets, and wherein each CSI report of the group of CSI reports is based on one of the one or more CSI-RS resource sets. In some embodiments, the combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of one or more CSI-RS resource sets, the same number of codebook subset restrictions as the number of one or more CSI-RS resource sets, or the same number of rank indicator (RI) restrictions as the number of one or more CSI-RS resource sets. In some embodiments, the difference between more than one CSI-RS resource sets in the one or more CSI-RS resource sets is caused by different numbers of antenna ports, different power offsets, or different resource indexes.

[0285] In some embodiments, the combined CSI report includes a group of CSI reports, wherein each of the one or more CSI resource configurations includes one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets includes one or more CSI-RS resources, and wherein each CSI report of the group of CSI reports is based on one or a group of the one or more CSI-RS resources. In some embodiments, the combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups, the same number of codebook subset restrictions as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups, or the same number of rank indicator (RI) restrictions as the number of one or more CSI-RS resources or the number of one or more CSI-RS resource groups. In some embodiments, the difference between more than one of the one or more CSI-RS resources or more than one group of CSI-RS resources is caused by different numbers of antenna ports, different power offsets, or different resource indexes. In some embodiments, the maximum number of one or more CSI-RS resources or the maximum number of one or more CSI-RS resource groups is greater than 2 and less than or equal to 8.

[0286] In some embodiments, the combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, wherein each of the one or more CSI-RS resources comprises one or more resource mappings, and wherein each CSI report in the set of CSI reports is based on one or a set of one or more resource mappings. In some embodiments, the combined CSI report configuration comprises at least one of the following: the same number of codebook configurations as the number of one or more resource mappings or the number of one or more resource mapping groups, the same number of codebook subset restrictions as the number of one or more resource mappings or the number of one or more resource mapping groups, or the same number of rank indicator (RI) restrictions as the number of one or more resource mappings or the number of one or more resource mapping groups. In some embodiments, the difference between one or more resource mappings or one or more resource mappings is caused by different numbers of antenna ports, different power offsets, or different resource indexes.

[0287] In some embodiments, the combined CSI report includes a group of CSI reports, wherein each CSI report in the group of CSI reports is configured with a group of CSI resources, and wherein each CSI resource in the group of CSI resources is configured with the same number of ports or the same power offset. In some embodiments, the combined CSI report includes the CSI report and a resource indication, wherein the resource indication represents at least one of the following: a CSI resource associated with the CSI report, a port indication, a number of ports, a power offset, an increment of a number of ports, or an increment of a power offset.

[0288] In some embodiments, the combined CSI report configuration further comprises at least one of: a plurality of codebook configurations, a plurality of codebook subset restrictions, or a plurality of rank indicator (RI) restrictions. In some embodiments, the number of the plurality of codebook configurations, the number of the plurality of codebook subset restrictions, or the number of the plurality of RI restrictions is the same as the number of CSI reports in the combined CSI report. In some embodiments, the combined CSI report configuration further comprises a codebook configuration, wherein the codebook configuration comprises at least one of: one or more bitmaps for codebook subset restrictions, one or more bitmaps for rank indicator (RI) restrictions, codebook subset restrictions, or RI restrictions.

[0289] In some embodiments, a first CSI resource configuration of the one or more CSI resource configurations includes a first one or more CSI reference signal (CSI-RS) resources, and a second CSI resource configuration of the one or more CSI resource configurations includes a second one or more CSI-RS resources, wherein the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources. In some embodiments, the one or more CSI resource configurations are restricted to a predefined number of time slots, wherein the predefined number is an integer greater than or equal to 0 and less than 10.

[0290] In some embodiments, sending a combined CSI report configuration includes sending a combined CSI report configuration in a radio resource control (RRC) signaling, wherein CSI resources in a CSI resource configuration of one or more CSI resource configurations are configured with the same number of ports or the same power offset, wherein the RRC signaling also includes reporting parameters, and wherein the reporting parameters include at least one of the following: beam parameters, a port number list, a power offset list, a factor list, a port indication, a reporting number, or a mapping parameter.

[0291] In some embodiments, sending the combined CSI report configuration includes sending the combined CSI report configuration in radio resource control (RRC) signaling, wherein the RRC signaling also includes at least one of: an indication of enabling combined CSI reporting, an indication of a minimum or maximum number of CSI reports in the combined CSI report, an indication of the number of CSI reports in the combined CSI report, a list of antenna port identifiers, a list of power offsets, a list of numbers of antenna ports, or a list of resource indexes.

[0292] Fig.13 An exemplary block diagram of a hardware platform 1300 is shown, which may be part of a network device (e.g., a base station) or a communication device (e.g., a user equipment (UE)). The hardware platform 1300 includes at least one processor 1310 and a memory 1305 having instructions stored thereon. The instructions executed by the processor 1310 configure the hardware platform 1300 to perform Figures 1 to 12 The operations described in the various embodiments described in and in this patent application. Transmitter 1315 transmits or sends information or data to another device. For example, a network device transmitter can send a message to a user device. Receiver 1320 receives information or data transmitted or sent by another device. For example, a user device can receive a message from a network device. For example, as described in this application, a UE or a network device can be implemented using hardware platform 1300.

[0293] The above-described embodiments may be applied to wireless communications. Fig.14 An example of a wireless communication system (e.g., a 5G or NR cellular network) is shown that includes a base station 1420 and one or more user equipment (UE) 1411, 1412, and 1413. In some embodiments, the UE uses a communication link to the network (sometimes referred to as an uplink direction, as shown by dashed arrows 1431, 1432, 1433) to access the BS (e.g., the network), which enables subsequent communication from the BS to the UE (e.g., shown in the direction from the network to the UE, sometimes referred to as a downlink direction, as shown by arrows 1441, 1442, 1443). In some embodiments, the BS sends information to the UE (sometimes referred to as a downlink direction, as shown by arrows 1441, 1442, 1443), which enables subsequent communication from the UE to the BS (e.g., shown in the direction from the UE to the BS, sometimes referred to as an uplink direction, as shown by dashed arrows 1431, 1432, 1433). The UE may be, for example, a smartphone, a tablet, a mobile computer, a machine-to-machine (M2M) device, an Internet of Things (IoT) device, etc. The UE described in the present application may be communicatively coupled to Fig.14 The UE may also communicate with the BS for CSI communication.

[0294] In this application, the term "exemplary" is used to mean "an example of," and does not imply an ideal or preferred embodiment unless otherwise stated.

[0295] Some embodiments described herein are described in the general context of methods or processes, which can be implemented in one embodiment by a computer program product, which is embodied in a computer-readable medium, including computer executable instructions such as program code executed by a computer in a networked environment. Computer-readable media may include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), compact disk (CD), digital versatile disk (DVD), etc. Therefore, computer-readable media may include non-transient storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. Computer or processor executable instructions, related data structures, and program modules represent examples of program codes for executing the method steps disclosed herein. A specific sequence of such executable instructions or related data structures represents an example of corresponding actions for implementing the functions described in such steps or processes.

[0296] Some disclosed embodiments can be implemented as devices or modules using hardware circuits, software or a combination thereof. For example, a hardware circuit implementation may include discrete analog and / or digital components, which are, for example, integrated as a part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules may be implemented as application specific integrated circuits (ASICs) and / or field programmable gate arrays (FPGAs) devices. Some embodiments may additionally or alternatively include a digital signal processor (DSP), which is a dedicated microprocessor with an architecture optimized for the operation needs of digital signal processing associated with the disclosed functions of the present application. Similarly, various components or subcomponents within each module may be implemented with software, hardware or firmware. The connection between the modules and / or the components within the modules may be provided using any connection method and medium known in the art, including but not limited to communication over the Internet, wired or wireless networks using appropriate protocols.

[0297] Although the present application contains many details, these should not be interpreted as limitations on the scope of the claimed invention or the content that may be claimed, but as descriptions of features for specific embodiments. Certain features described in the present application in the context of separate embodiments may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although the above-mentioned features may be described as working in certain combinations, and even initially claimed as such, in some cases, one or more features from the combination may be deleted from the combination, and the combination may involve a sub-combination or a variant of a sub-combination. Similarly, although the operations are described in a particular order in the accompanying drawings, this should not be understood as requiring the operations to be performed in the particular order shown or in a sequential order, or requiring the execution of all the operations shown to obtain the desired results.

[0298] Only a few implementations and examples are described, and other implementations, enhancements, and variations can be made based on what is described and illustrated in this disclosure.

Claims

1. A wireless communication method, comprising: Receiving, by a wireless device, a combined channel state information (CSI) reporting configuration, the combined CSI reporting configuration comprising resources for channel measurement, wherein the resources for channel measurement comprise one or more CSI resource configurations; and A combined CSI report is sent by the wireless device based on the combined CSI reporting configuration.

2. The method according to claim 1, wherein: Each of the one or more CSI resource configurations is a CSI reference signal (CSI-RS) resource setting.

3. The method according to any one of claims 1 and 2, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, and wherein each CSI report in the set of CSI reports is based on one CSI-RS resource set in the one or more CSI-RS resource sets.

4. The method according to claim 3, wherein: The combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more CSI-RS resource sets, the same number of codebook subset restrictions as the number of the one or more CSI-RS resource sets, or the same number of rank indicator (RI) restrictions as the number of the one or more CSI-RS resource sets.

5. The method according to any one of claims 3 and 4, wherein: The difference between more than one of the one or more CSI-RS resource sets is caused by different numbers of antenna ports, different power offsets or different resource indexes.

6. The method according to any one of claims 1 and 2, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, and wherein each CSI report in the set of CSI reports is based on one or a set of the one or more CSI-RS resources.

7. The method according to claim 6, wherein: The combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources, the same number of codebook subset restrictions as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources, or the same number of rank indicator (RI) restrictions as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources.

8. The method according to any one of claims 6 and 7, wherein: The difference between more than one CSI-RS resource or more than one group of CSI-RS resources among the one or more CSI-RS resources is caused by different numbers of antenna ports, different power offsets or different resource indexes.

9. The method according to any one of claims 6 to 8, wherein: The maximum number of the one or more CSI-RS resources or the maximum number of groups of the one or more CSI-RS resources is greater than 2 and less than or equal to 8.

10. The method according to any one of claims 1 and 2, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, wherein each of the one or more CSI-RS resources comprises one or more resource mappings, and wherein each CSI report in the set of CSI reports is based on one or a set of the one or more resource mappings.

11. The method according to claim 10, wherein: The combined CSI reporting configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more resource mappings or the number of groups of the one or more resource mappings, the same number of codebook subset restrictions as the number of the one or more resource mappings or the number of groups of the one or more resource mappings, or the same number of rank indicator (RI) restrictions as the number of the one or more resource mappings or the number of groups of the one or more resource mappings.

12. The method according to any one of claims 10 and 11, wherein: The difference between more than one resource mapping or more than one group of resource mappings in the one or more resource mappings is caused by different numbers of antenna ports, different power offsets or different resource indices.

13. The method according to any one of claims 1 and 2, wherein: The combined CSI report comprises a group of CSI reports, wherein each CSI report in the group of CSI reports is configured with a group of CSI resources, and wherein each CSI resource in the group of CSI resources is configured with the same number of ports or the same power offset.

14. The method according to any one of claims 1 and 2, wherein: The combined CSI report includes a CSI report and a resource indication, wherein the resource indication represents at least one of: a CSI resource associated with the CSI report, a port indication, a number of ports, a power offset, an increment of a number of ports, or an increment of a power offset.

15. The method according to any one of claims 1 and 2, wherein: The combined CSI reporting configuration further includes at least one of: multiple codebook configurations, multiple codebook subset restrictions, or multiple rank indicator (RI) restrictions.

16. The method according to claim 15, wherein: The number of the plurality of codebook configurations, the number of the plurality of codebook subset restrictions, or the number of the plurality of RI restrictions is the same as the number of CSI reports in the combined CSI report.

17. The method according to any one of claims 1 and 2, wherein: The combined CSI reporting configuration also includes a codebook configuration, and wherein the codebook configuration includes at least one of the following: one or more bitmaps for codebook subset restriction, one or more bitmaps for rank indicator (RI) restriction, codebook subset restriction or RI restriction.

18. The method according to any one of claims 1 and 2, wherein: A first CSI resource configuration among the one or more CSI resource configurations includes first one or more CSI reference signal (CSI-RS) resources, wherein a second CSI resource configuration among the one or more CSI resource configurations includes second one or more CSI-RS resources, and wherein the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources.

19. The method according to any one of claims 1 and 2, wherein: The one or more CSI resource configurations are restricted to a predefined number of time slots, and wherein the predefined number is an integer greater than or equal to 0 and less than ten.

20. The method according to any one of claims 1 and 2, wherein: Receiving the combined CSI reporting configuration includes receiving the combined CSI reporting configuration in radio resource control (RRC) signaling, wherein the CSI resources in the CSI resource configurations of the one or more CSI resource configurations are configured with the same number of ports or the same power offset, wherein the RRC signaling also includes reporting parameters, and wherein the reporting parameters include at least one of the following: beam parameters, a port number list, a power offset list, a factor list, a port indication, a reporting number, or a mapping parameter.

21. The method according to claim 20, further comprising: Measurement is performed, by the wireless device, on a CSI reference signal (CSI-RS) received via a CSI-RS resource in a CSI resource configuration of the one or more CSI resource configurations based on the reporting parameters.

22. The method according to any one of claims 1 and 2, wherein: Receiving the combined CSI reporting configuration includes receiving the combined CSI reporting configuration in radio resource control (RRC) signaling, wherein the RRC signaling also includes at least one of the following: an indication of enabling the combined CSI reporting, an indication of a minimum or maximum number of CSI reports in the combined CSI report, an indication of the number of CSI reports in the combined CSI report, a list of antenna port identifiers, a list of power offsets, a list of numbers of antenna ports, or a list of resource indexes.

23. A wireless communication method, comprising: Sending, by a network device, a combined channel state information (CSI) reporting configuration, the combined CSI reporting configuration comprising resources for channel measurement, wherein the resources for channel measurement comprise one or more CSI resource configurations; and A combined CSI report is received by the network device based on the combined CSI reporting configuration.

24. The method according to claim 23, wherein: Each of the one or more CSI resource configurations is a CSI reference signal (CSI-RS) resource setting.

25. The method according to any one of claims 23 and 24, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, and wherein each CSI report in the set of CSI reports is based on one CSI-RS resource set in the one or more CSI-RS resource sets.

26. The method according to claim 25, wherein: The combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more CSI-RS resource sets, the same number of codebook subset restrictions as the number of the one or more CSI-RS resource sets, or the same number of rank indicator (RI) restrictions as the number of the one or more CSI-RS resource sets.

27. The method according to any one of claims 25 and 26, wherein: The difference between more than one of the one or more CSI-RS resource sets is caused by different numbers of antenna ports, different power offsets or different resource indexes.

28. The method according to any one of claims 23 and 24, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, and wherein each CSI report in the set of CSI reports is based on one or a set of the one or more CSI-RS resources.

29. The method according to claim 28, wherein: The combined CSI report configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources, the same number of codebook subset restrictions as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources, or the same number of rank indicator (RI) restrictions as the number of the one or more CSI-RS resources or the number of groups of the one or more CSI-RS resources.

30. The method according to any one of claims 28 and 29, wherein: The difference between more than one CSI-RS resource or more than one group of CSI-RS resources among the one or more CSI-RS resources is caused by different numbers of antenna ports, different power offsets or different resource indexes.

31. The method according to any one of claims 28 to 30, wherein: The maximum number of the one or more CSI-RS resources or the maximum number of groups of the one or more CSI-RS resources is greater than 2 and less than or equal to 8.

32. The method according to any one of claims 23 and 24, wherein: The combined CSI report comprises a set of CSI reports, wherein each of the one or more CSI resource configurations comprises one or more CSI reference signal (CSI-RS) resource sets, wherein each of the one or more CSI-RS resource sets comprises one or more CSI-RS resources, wherein each of the one or more CSI-RS resources comprises one or more resource mappings, and wherein each CSI report in the set of CSI reports is based on one or a set of the one or more resource mappings.

33. The method of claim 32, wherein: The combined CSI reporting configuration includes at least one of the following: the same number of codebook configurations as the number of the one or more resource mappings or the number of groups of the one or more resource mappings, the same number of codebook subset restrictions as the number of the one or more resource mappings or the number of groups of the one or more resource mappings, or the same number of rank indicator (RI) restrictions as the number of the one or more resource mappings or the number of groups of the one or more resource mappings.

34. The method according to any one of claims 32 and 33, wherein: The difference between more than one resource mapping or more than one group of resource mappings in the one or more resource mappings is caused by different numbers of antenna ports, different power offsets or different resource indices.

35. The method according to any one of claims 23 and 24, wherein: The combined CSI report includes a CSI report and a resource indication, wherein the resource indication represents at least one of: a CSI resource associated with the CSI report, a port indication, a number of ports, a power offset, an increment of a number of ports, or an increment of a power offset.

36. The method according to any one of claims 23 and 24, wherein: The combined CSI reporting configuration further includes at least one of: multiple codebook configurations, multiple codebook subset restrictions, or multiple rank indicator (RI) restrictions.

37. The method of claim 36, wherein: The number of the plurality of codebook configurations, the number of the plurality of codebook subset restrictions, or the number of the plurality of RI restrictions is the same as the number of CSI reports in the combined CSI report.

38. The method according to any one of claims 23 and 24, wherein: A first CSI resource configuration among the one or more CSI resource configurations includes first one or more CSI reference signal (CSI-RS) resources, wherein a second CSI resource configuration among the one or more CSI resource configurations includes second one or more CSI-RS resources, and wherein the first one or more CSI-RS resources are a subset of the second one or more CSI-RS resources.

39. The method according to any one of claims 23 and 24, wherein: The one or more CSI resource configurations are restricted to a predefined number of time slots, and wherein the predefined number is an integer greater than or equal to 0 and less than ten.

40. The method according to any one of claims 23 and 24, wherein: Sending the combined CSI reporting configuration includes sending the combined CSI reporting configuration in radio resource control (RRC) signaling, wherein the CSI resources in the CSI resource configurations of the one or more CSI resource configurations are configured with the same number of ports or the same power offset, wherein the RRC signaling also includes reporting parameters, and wherein the reporting parameters include at least one of the following: beam parameters, a port number list, a power offset list, a factor list, a port indication, a reporting number, or a mapping parameter.

41. The method according to any one of claims 23 and 24, wherein: Sending the combined CSI report configuration includes sending the combined CSI report configuration in radio resource control (RRC) signaling, wherein the RRC signaling also includes at least one of the following: an indication of enabling the combined CSI report, an indication of a minimum or maximum number of CSI reports in the combined CSI report, an indication of the number of CSI reports in the combined CSI report, a list of antenna port identifiers, a list of power offsets, a list of numbers of antenna ports, or a list of resource indexes.

42. A wireless communication device, the wireless communication device comprising a processor, wherein: The processor is configured to implement a method according to any one of claims 1 to 41 .

43. A computer-readable program storage medium having codes stored thereon, which, when executed by a processor, cause the processor to implement the method according to any one of claims 1 to 41.

Images