7.2.2 Periodic CSI Reporting using PUCCH

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

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A UE is semi-statically configured by higher layers to periodically feed back different CSI components (CQI, PMI, PTI, CRI, and/or RI) on the PUCCH using the reporting modes given in Table 7.2.2-1 and described below. A UE in transmission mode 10 can be configured by higher layers for multiple periodic CSI reports corresponding to one or more CSI processes per serving cell on PUCCH.

A BL/CE UE configured with CEModeB is not expected to be configured with periodic CSI report.

If a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured,

– one of the following CSI reporting modes given in Table 7.2.2-1 is configured only for eMIMO-Type2

– the UE shall not transmit CQI, PTI, and second precoding matrix indicator for eMIMO-Type for any CSI reporting mode in Table 7.2.2-1

– the UE shall not transmit RI for eMIMO-Type and for any CSI reporting mode in Table 7.2.2-1 except if the maximum number of supported layers for spatial multiplexing in DL supported by the UE is more than 2, then UE feeds back a 1-bit RI according to Table 7.2.1-1L

– the UE shall report a type 2a report consisting of wideband first PMI if RI is not transmitted, otherwise type 5 report consisting of jointly coded RI and a wideband first PMI for eMIMO-Type for any CSI reporting mode in Table 7.2.2-1, as described below.

If a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS B’ with more than one CSI-RS resource configured, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, one of the following CSI reporting modes given in Table 7.2.2-1 is configured only for eMIMO-Type2 and the UE shall not transmit CQI, PMI, PTI, RI for eMIMO-Type for any CSI reporting mode in Table 7.2.2-1 and the UE shall report a type10 report consisting of CRI as described below.

If a UE is configured with higher layer configured parameter semiOpenLoop, except with 2 CSI-RS ports or with 4 CSI-RS ports and alternativeCodeBookEnabledFor4TX-r12=FALSE, the UE shall report a type 2a report consisting of wideband first PMI for CSI reporting modes 1-1 and 2-1 in Table 7.2.2-1, as described below.

Table 7.2.2-1: CQI and PMI Feedback Types for PUCCH CSI reporting Modes

		PMI Feedback Type
		No PMI	Single PMI
PUCCH CQI Feedback Type	Wideband (wideband CQI)	Mode 1-0	Mode 1-1
PUCCH CQI Feedback Type	UE Selected (subband CQI)	Mode 2-0	Mode 2-1

For a non-BL/CE UE and for each of the transmission modes defined in Clause 7.1, the following periodic CSI reporting modes are supported on PUCCH:

Transmission mode 1 : Modes 1-0, 2-0

Transmission mode 2 : Modes 1-0, 2-0

Transmission mode 3 : Modes 1-0, 2-0

Transmission mode 4 : Modes 1-1, 2-1

Transmission mode 5 : Modes 1-1, 2-1

Transmission mode 6 : Modes 1-1, 2-1

Transmission mode 7 : Modes 1-0, 2-0

Transmission mode 8 : Modes 1-1, 2-1 if the UE is configured with PMI/RI reporting; modes 1-0, 2-0 if the UE is configured without PMI/RI reporting

Transmission mode 9 : Modes 1-1, 2-1 if the UE is configured with PMI/RI reporting and number of CSI-RS ports>1 and the UE is not configured with higher layer parameter advancedCodebookEnabled, or the UE is configured with higher layer parameter semiOpenLoop; mode 1-1 if the UE is configured with PMI/RI reporting and number of CSI-RS ports>1 and the UE is configured with higher layer parameter advancedCodebookEnabled; modes 1-0, 2-0 if the UE is configured without PMI/RI reporting or without PMI reporting or number of CSI-RS ports=1 or the number of CSI-RS ports in each of one or more CSI-RS resources in a CSI process is one when eMIMO-Type or eMIMO-Type2 is set to be ‘CLASS B’.

Transmission mode 10 : Modes 1-1, 2-1 if the UE is configured with PMI/RI reporting and number of CSI-RS ports>1 and the UE is not configured with higher layer parameter advancedCodebookEnabled, or the UE is configured with higher layer parameter semiOpenLoop; mode 1-1 if the UE is configured with PMI/RI reporting and number of CSI-RS ports>1 and the UE is configured with higher layer parameter advancedCodebookEnabled; modes 1-0, 2-0 if the UE is configured without PMI/RI reporting or without PMI reporting or number of CSI-RS ports=1 or the number of CSI-RS ports in each of one or more CSI-RS resources in a CSI process is one when eMIMO-Type or eMIMO-Type2 is set to be ‘CLASS B’.

For a BL/CE UE configured with CEModeA, the following periodic CSI reporting modes are supported on PUCCH:

Transmission mode 1 : Mode 1-0

Transmission mode 2 : Mode 1-0

Transmission mode 6 : Mode 1-1

Transmission mode 9 : Modes 1-1, 1-0 if the UE is not configured with higher layer parameter ce-CSI-RS-Feedback; mode 1-1 if the UE is configured with PMI/RI reporting and number of CSI-RS ports=8 and the UE is configured with higher layer parameter ce-CSI-RS-Feedback.

For a UE configured in transmission mode 1-9, one periodic CSI reporting mode for each activated serving cell is configured by higher-layer signalling. Additionally, one periodic CSI reporting mode can be configured by higher-layer signalling for each dormant serving cell.

For a UE configured in transmission mode 10, one or more periodic CSI reporting modes for each serving cell are configured by higher-layer signalling. Additionally, one periodic CSI reporting mode can be configured by higher-layer signalling for each dormant serving cell.

For UE in transmission mode 9 and the UE configured with higher layer parameter eMIMO-Type, the term ‘CSI process’ in this Clause refers to the CSI configured for the UE.

For a UE configured with transmission mode 9 or 10, and with 8 CSI-RS ports, if the UE is not configured with parameter eMIMO-Type by higher layers , or the UE is configured with parameter eMIMO-Type by higher layers, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or the UE is configured with parameter eMIMO-Type2 by higher layers, and eMIMO-Type2 is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured,or the UE is configured with parameter eMIMO-Type by higher layers, and eMIMO-Type is set to ‘CLASS B’, and more than one CSI-RS resource configured, and at least one CSI-RS resource with 8 CSI-RS ports, mode 1-1 is configured to be either submode 1 or submode 2 via higher-layer signaling using the parameter PUCCH_format1-1_CSI_reporting_mode.

For a UE configured with transmission mode 8, 9 or 10, and with alternativeCodeBookEnabledFor4TX-r12=TRUE configured, if the UE is not configured with higher layer parameter eMIMO-Type, or the UE is configured with parameter eMIMO-Type by higher layers, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or the UE is configured with parameter eMIMO-Type2 by higher layers, and eMIMO-Type2 is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or the UE is configured with parameter eMIMO-Type by higher layers, and eMIMO-Type is set to ‘CLASS B’, and more than one CSI-RS resource configured, and at least one CSI-RS resource with 4 CSI-RS ports, mode 1-1 is configured to be either submode 1 or submode 2 via higher-layer signaling using the parameter PUCCH_format1-1_CSI_reporting_mode.

For the UE-selected subband CQI, a CQI report in a certain subframe of a certain serving cell describes the channel quality in a particular part or in particular parts of the bandwidth of that serving cell described subsequently as bandwidth part (BP) or parts. The bandwidth parts shall be indexed in the order of increasing frequency and non-increasing sizes starting at the lowest frequency.

For each serving cell

– There are a total of N subbands for a serving cell system bandwidth given by wheresubbands are of size k. If then one of the subbands is of size.

– A bandwidth part j is frequency-consecutive and consists of subbands where J bandwidth parts span S or as given in Table 7.2.2-2. If then is. If J>1 then is either or , depending on, k and J.

– Each bandwidth part j, where 0 ≤ j ≤ J-1, is scanned in sequential order according to increasing frequency.

– For UE selected subband feedback a single subband out of subbands of a bandwidth part is selected along with a corresponding L-bit label indexed in the order of increasing frequency, where.

The CQI and PMI payload sizes of each PUCCH CSI reporting mode are given in Table 7.2.2-3.

The following CQI/PMI and RI reporting types with distinct periods and offsets are supported for the PUCCH CSI reporting modes given in Table 7.2.2-3:

– Type 1 report supports CQI feedback for the UE selected sub-bands

– Type 1a report supports subband CQI and second PMI feedback

– Type 2, Type 2b, and Type 2c report supports wideband CQI and PMI feedback

– Type 2a report supports wideband PMI feedback

– Type 3 report supports RI feedback

– Type 4 report supports wideband CQI

– Type 5 report supports RI and wideband PMI feedback

– Type 6 report supports RI and PTI feedback

– Type 7 report support CRI and RI feedback

– Type 8 report supports CRI, RI and wideband PMI feedback

– Type 9 report supports CRI, RI and PTI feedback

– Type 10 report supports CRI feedback

– Type 11 report supports RI and RPI feedback

For a UE configured in transmission mode 1-9 and for each serving cell, or for a UE configured in transmission mode 10 and for each CSI process in each serving cell, the periodicity (in subframes) and offset (in subframes) for CQI/PMI reporting are determined based on the parameter cqi-pmi-ConfigIndex () for the activated serving cells, given in Table 7.2.2-1A for FDD or for FDD-TDD with primary cell frame structure 1 and Table 7.2.2-1C for TDD or for FDD-TDD and primary cell frame structure type 2. For the dormant serving cells, is given by the parameter cqi-pmi-ConfigIndexDormant. The periodicity and relative offset for RI reporting are determined based on the parameter ri-ConfigIndex () for the activated serving cells, given in Table 7.2.2-1B. For the serving cells in the dormant state, is given by the parameter ri-ConfigIndexDormant. For a UE configured in transmission mode 9 and for each serving cell, or for a UE configured in transmission mode 10 and for each CSI process in each serving cell, if the UE is configured with parameter eMIMO-Type by higher layers, except with higher layer parameter csi-RS-NZP-mode configured, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one, or the UE is configured with higher layer parameter eMIMO-Type set to ‘CLASS B’ and higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and the number of activated CSI-RS resources is more than one, when RI reporting is configured, the periodicity for CRI reporting is determined based on the parameter cri-ConfigIndex () given in Table 7.2.2-1J. When the number of antenna ports in each configured CSI-RS resource is one, the periodicity and relative offset for CRI reporting are determined based on the parameter cri-ConfigIndex () given in Table 7.2.2-1K. If a UE is configured with parameter eMIMO-Type and eMIMO-Type2, the parameters cqi-pmi-ConfigIndex, ri-ConfigIndex are for eMIMO-Type2. If a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS B’ with more than one CSI-RS resource configured, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, the parameter cri-ConfigIndex is for eMIMO-Type. If a UE is configured with parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, the periodicity and relative offset for wideband first PMI/RI reporting for eMIMO-Type are determined based on the parameter periodicityOffsetIndex () given in Table 7.2.2-1L. The parameters cqi-pmi-ConfigIndex, cqi-pmi-ConfigIndexDormant, ri-ConfigIndex, ri-ConfigIndexDormant, periodicityOffsetIndex, and cri-ConfigIndex are configured by higher layer signalling. The relative reporting offset for RI takes values from the set . If a UE is configured to report for more than one CSI subframe set then parameter cqi-pmi-ConfigIndex, ri-ConfigIndex, periodicityOffsetIndex, and cri-ConfigIndex respectively correspond to the CQI/PMI, RI, PMI/RI, and CRI periodicity and relative reporting offset for subframe set 1 and cqi-pmi-ConfigIndex2, cqi-pmi-ConfigIndex2Dormant, ri-ConfigIndex2, ri-ConfigIndex2Dormant, periodicityOffsetIndex2, and cri-ConfigIndex2 respectively correspond to the CQI/PMI, RI, PMI/RI, and CRI periodicity and relative reporting offset for subframe set 2. For a UE configured with transmission mode 10, the parameters cqi-pmi-ConfigIndex , ri-ConfigIndex, periodicityOffsetIndex, cri-ConfigIndex, cqi-pmi-ConfigIndex2, ri-ConfigIndex2, periodicityOffsetIndex2, and cri-ConfigIndex2 can be configured for each CSI process. A BL/CE UE is not expected to be configured with the parameter ri-ConfigIndex.

In the case where wideband CQI/PMI reporting is configured:

– The reporting instances for wideband CQI/PMI are subframes satisfying .

– For a UE configured in transmission mode 9 or 10, and UE configured with the parameter eMIMO-Type by higher layers, and eMIMO-Type set to ‘CLASS A’, and UE not configured with the parameter eMIMO-Type2, the reporting interval of wideband first PMI reporting is an integer multiple of period (in subframes).

– The reporting instances for wideband first PMI are subframes satisfying .

– For a UE configured in transmission mode 9 or 10, if UE is configured with parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, and RI reporting for eMIMO-Type2 is not configured, the reporting interval of wideband first PMI and RI reporting for eMIMO-Type is an integer multiple of period (in subframes).

– The reporting instances for wideband first PMI and RI for eMIMO-Type are subframes satisfying .

– For a UE configured in transmission mode 9 or 10, if UE is configured with parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS B’ with more than one CSI-RS resource configured, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, and RI reporting for eMIMO-Type2 is not configured, the reporting interval of CRI reporting for eMIMO-Type is an integer multiple of period (in subframes)

– The reporting instances for CRI are subframes satisfying .

– In case RI reporting is configured, the reporting interval of the RI reporting, or RI and RPI reporting if UE is configured in transmission mode 9 or 10, and with higher layer parameter advancedCodebookEnabled=TRUE, is an integer multiple of period (in subframes).

– The reporting instances for RI or RI and RPI are subframes satisfying .

– For a UE configured in transmission mode 9 or 10, and UE configured with parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, the reporting interval of wideband first PMI and RI reporting for eMIMO-Type is an integer multiple of period (in subframes).

– The reporting instances for wideband first PMI and RI for eMIMO-Type are subframes satisfying .

– In case CRI reporting is configured,

– if the number of antenna ports in each configured CSI-RS resource is one,

– the reporting interval of the CRI reporting is an integer multiple of period (in subframes)

– The reporting instances for CRI are subframes satisfying .

– otherwise

– the reporting interval of the CRI reporting is an integer multiple of period (in subframes).

– The reporting instances for CRI are subframes satisfying .

In the case where both wideband CQI/PMI and subband CQI (or subband CQI/second PMI for transmission modes 9 and 10) reporting are configured:

– The reporting instances for wideband CQI/PMI and subband CQI (or subband CQI/second PMI for transmission modes 9 and 10) are subframes satisfying .

– The reporting instances for wideband first PMI and RI for eMIMO-Type are subframes satisfying .

– The reporting instances for CRI are subframes satisfying .

– When PTI is not transmitted (due to not being configured) or the most recently transmitted PTI is equal to 1 for a UE configured in transmission modes 8 and 9, or for a UE configured in transmission mode 10 without a ‘RI-reference CSI process’ for a CSI process, or the transmitted PTI is equal to 1 reported in the most recent RI reporting instance for a CSI process when a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for the CSI process, or the transmitted PTI is equal to 1 for a ‘RI-reference CSI process’ reported in the most recent RI reporting instance for a CSI process when a UE is configured in transmission mode 10 with the ‘RI-reference CSI process’ for the CSI process, and the most recent type 6 report for the CSI process is dropped:

– The wideband CQI/ wideband PMI (or wideband CQI/wideband second PMI for transmission modes 8, 9 and 10) report has period , and is reported on the subframes satisfying . The integer is defined as , where is the number of bandwidth parts.

– Between every two consecutive wideband CQI/ wideband PMI (or wideband CQI/wideband second PMI for transmission modes 8, 9 and 10) reports, the remaining reporting instances are used in sequence for subband CQI (or subband CQI/second PMI for transmission modes 9 and 10) reports on full cycles of bandwidth parts except when the gap between two consecutive wideband CQI/PMI reports contains less than reporting instances due to a system frame number transition to 0, in which case the UE shall not transmit the remainder of the subband CQI (or subband CQI/second PMI for transmission modes 9 and 10) reports which have not been transmitted before the second of the two wideband CQI/ wideband PMI (or wideband CQI/wideband second PMI for transmission modes 8, 9 and 10) reports. Each full cycle of bandwidth parts shall be in increasing order starting from bandwidth part 0 to bandwidth part . The parameter is configured by higher-layer signalling.

– When the most recently transmitted PTI is 0 for a UE configured in transmission modes 8 and 9 or for a UE configured in transmission mode 10 without a ‘RI-reference CSI process’ for a CSI process, or the transmitted PTI is 0 reported in the most recent RI reporting instance for a CSI process when a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for the CSI process, or the transmitted PTI is 0 for a ‘RI-reference CSI process’ reported in the most recent RI reporting instance for a CSI process when a UE is configured in transmission mode 10 with the ‘RI-reference CSI process’ for the CSI process, and the most recent type 6 report for the CSI process is dropped:

– The wideband first precoding matrix indicator report has period , and is reported on the subframes satisfying , where is signalled by higher layers.

– Between every two consecutive wideband first precoding matrix indicator reports, the remaining reporting instances are used for a wideband second precoding matrix indicator with wideband CQI as described below

– In case RI reporting is configured, the reporting interval of RI is times the wideband CQI/PMI period , and RI is reported on the same PUCCH cyclic shift resource as both the wideband CQI/PMI and subband CQI reports.

– The reporting instances for RI are subframes satisfying .

– The reporting instances for wideband first PMI and RI for eMIMO-Type are subframes satisfying .

– In case CRI reporting is configured,

– if the number of antenna ports in each configured CSI-RS resource is one,

– the reporting interval of the CRI reporting is times the wideband CQI/PMI period ,

– The reporting instances for CRI are subframes satisfying .

– otherwise

– the reporting interval of the CRI reporting is times the RI period (in subframes).

– The reporting instances for CRI are subframes satisfying .

If the UE is configured with higher layer parameter eMIMO-Type2 for a CSI process, at the CQI, PMI, RI, PTI reporting instances for eMIMO-Type2 of the CSI process, the parameter eMIMO-Type in the rest of this Clause refers to the parameter eMIMO-Type2 for the CSI process.

If a UE is not configured with higher layer parameter eMIMO-Type, or for a CSI process a UE is configured with higher layer parameter eMIMO-Type and not configured with higher layer parameter eMIMO-Type2 and eMIMO-Type is set to ‘CLASS A’, or for a CSI process a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type is set to ‘CLASS B’, except with higher layer parameter csi-RS-NZP-mode configured, and one configured CSI-RS resource, or for a CSI process a UE is configured with higher layer parameter eMIMO-Type set to ‘CLASS B’ and higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and one activated CSI-RS resource, in case of collision of a CSI report with PUCCH reporting type 3, 5, 6 or 11 of one serving cell with a CSI report with PUCCH reporting type 1, 1a, 2, 2a, 2b, 2c, or 4 of the same serving cell the latter CSI report with PUCCH reporting type (1, 1a, 2, 2a, 2b, 2c, or 4), except a CSI report with PUCCH reporting type 2a for eMIMO-Type of a CSI process of the same serving cell with configured higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, has lower priority and is dropped.

If a UE is configured with higher layer parameter eMIMO-Type and not configured with higher layer parameter eMIMO-Type2 and eMIMO-Type is set to ‘CLASS A’ for a CSI process, in case of collision of a CSI report with PUCCH reporting type 2a of one serving cell with a CSI report with PUCCH reporting type 1, 1a, 2, 2b, 2c, or 4 of the same serving cell, the latter CSI report with PUCCH reporting type (1, 1a, 2, 2b, 2c, or 4) has lower priority and is dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, for a CSI process, if a UE is configured with higher layer parameter eMIMO-Type except with higher layer parameter csi-RS-NZP-mode configured, and eMIMO-Type is set to ‘CLASS B’, and more than one configured CSI-RS resources, or a UE is configured with higher layer parameter eMIMO-Type set to ‘CLASS B’ and higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and more than one activated CSI-RS resources, in case of collision of a CSI report with PUCCH reporting type 7, 8, 9, or 10 of one serving cell with a CSI report with PUCCH reporting type 1, 1a, 2, 2a, 2b, 2c, 3, 4, 5, 6, or 11 of the same serving cell the latter CSI report with PUCCH reporting type (1, 1a, 2, 2a, 2b, 2c, 3, 4, 5, 6, or 11), except CSI report with PUCCH reporting type 2a or 5 for eMIMO-Type of a CSI process of the same serving cell with configured higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, has lower priority and is dropped.

For a CSI process, if a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, PUCCH reporting type 2a, or 5 for eMIMO-Type of the CSI process of one serving cell has the same priority with PUCCH reporting type (7, 8, 9, or 10) of the same serving cell.

For a serving cell and UE configured in transmission mode 10, in case of collision between CSI reports of same serving cell with PUCCH reporting type of the same priority, and the CSI reports corresponding to different CSI processes, the CSI reports corresponding to all CSI processes except the CSI process with the lowest csi-ProcessId-r11 are dropped.

For a serving cell and UE configured in transmission mode 1-9 and configured with CSI subframe sets and by the higher layer parameter csi-SubframePatternConfig-r12 for the serving cell, in case of collision between CSI reports of same serving cell with PUCCH reporting type of the same priority, the CSI report corresponding to CSI subframe set is dropped.

For a serving cell and UE configured in transmission mode 10 and configured with CSI subframe sets and by the higher layer parameter csi-SubframePatternConfig-r12 for the serving cell, in case of collision between CSI reports of same serving cell with PUCCH reporting type of the same priority and the CSI reports corresponding to CSI processes with same csi-ProcessId-r11, the CSI report corresponding to CSI subframe set is dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and if a PUCCH format 4 or format 5 resource for HARQ-ACK according to Table 10.1.2.2.3-1 cannot be determined, and if the UE is configured with more than one serving cell, the UE transmits a CSI report of only one serving cell in any given subframe. For a given subframe, in case of collision of a CSI report with PUCCH reporting type 7, 8, 9, or 10 of one serving cell with a CSI report with PUCCH reporting type 1, 1a, 2, 2a, 2b, 2c, 3, 4, 5, 6, or 11 of another serving cell, the latter CSI with PUCCH reporting type (1, 1a, 2, 2a, 2b, 2c, 3, 4, 5, 6, or 11), except CSI report with PUCCH reporting type 2a or 5 for eMIMO-Type of a CSI process of the another serving cell with configured higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, has lower priority and is dropped. For a given subframe, in case of collision of a CSI report with PUCCH reporting type 3, 5, 6, 11, or 2a of one serving cell with a CSI report with PUCCH reporting type 1, 1a, 2, 2b, 2c, or 4 of another serving cell, the latter CSI with PUCCH reporting type (1, 1a, 2, 2b, 2c, or 4) has lower priority and is dropped. For a given subframe, in case of collision of CSI report with PUCCH reporting type 2, 2b, 2c, or 4 of one serving cell with CSI report with PUCCH reporting type 1 or 1a of another serving cell, the latter CSI report with PUCCH reporting type 1, or 1a has lower priority and is dropped. For a given subframe, if a UE is configured with higher layer parameter eMIMO-Type and eMIMO-Type2, and eMIMO-Type is set to ‘CLASS A’, and eMIMO-Type2 is set to ‘CLASS B’ with one CSI-RS resource configured, PUCCH reporting type 2a, or 5 for eMIMO-Type of the CSI process of one serving cell has the same priority with PUCCH reporting type (7, 8, 9, or 10) of the same serving cell in case of collision of type 2a, or 5 for eMIMO-Type of the CSI process of the serving cell with PUCCH reporting types of another serving cell.

For a given subframe and serving cells with UE configured in transmission mode 1-9, in case of collision between CSI reports of these different serving cells with PUCCH reporting type of the same priority, the CSI reports for all these serving cells except the serving cell with lowest ServCellIndex are dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and if a PUCCH format 4 or format 5 resource for HARQ-ACK according to Table 10.1.2.2.3-1 cannot be determined, for a given subframe and serving cells with UE configured in transmission mode 10, in case of collision between CSI reports of different serving cells with PUCCH reporting type of the same priority and the CSI reports corresponding to CSI processes with same csi-ProcessId-r11, the CSI reports of all serving cells except the serving cell with lowest ServCellIndex are dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and if a PUCCH format 4 or format 5 resource for HARQ-ACK according to Table 10.1.2.2.3-1 cannot be determined, for a given subframe and serving cells with UE configured in transmission mode 10, in case of collision between CSI reports of different serving cells with PUCCH reporting type of the same priority and the CSI reports corresponding to CSI processes with different csi-ProcessId-r11, the CSI reports of all serving cells except the serving cell with CSI reports corresponding to CSI process with the lowest csi-ProcessId-r11 are dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and if a PUCCH format 4 or format 5 resource for HARQ-ACK according to Table 10.1.2.2.3-1 cannot be determined, for a given subframe, in case of collision between CSI report of a given serving cell with UE configured in transmission mode 1-9, and CSI report(s) corresponding to CSI process(es) of a different serving cell with the UE configured in transmission mode 10, and the CSI reports of the serving cells with PUCCH reporting type of the same priority, the CSI report(s) corresponding to CSI process(es) with csi-ProcessId-r11 > 1 of the different serving cell are dropped.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and if a PUCCH format 4 or format 5 resource for HARQ-ACK according to Table 10.1.2.2.3-1 cannot be determined, for a given subframe, in case of collision between CSI report of a given serving cell with UE configured in transmission mode 1-9, and CSI report corresponding to CSI process with csi-ProcessId-r11 = 1 of a different serving cell with the UE configured in transmission mode 10, and the CSI reports of the serving cells with PUCCH reporting type of the same priority, the CSI report of the serving cell with highest ServCellIndex is dropped.

See Clause 10.1 for UE behaviour regarding collision between CSI and HARQ-ACK and the corresponding PUCCH format assignment.

If a UE is not configured with higher layer parameter format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, and

– if the UE is not configured for simultaneous PUSCH and PUCCH transmission or,

– if the UE is configured for simultaneous PUSCH and PUCCH transmission and not transmitting PUSCH,

in case of collision between CSI and positive SR in a same subframe, CSI is dropped.

If a UE is configured with format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguration, for a subframe in which only periodic CSI and SR (if any) is transmitted,

if there is only one CSI report in the subframe,
- the CSI report of a given PUCCH reporting type shall be transmitted on the PUCCH resource as defined in [3], where is UE specific and configured by higher layers for each serving cell;

- In case of collision between CSI and positive SR in a same subframe, if the UE is not configured for simultaneous PUSCH and PUCCH transmission, or if the UE is configured for simultaneous PUSCH and PUCCH transmission and not transmitting PUSCH, CSI is dropped.
if there are more than one CSI reports in the subframe,
- if the parameter simultaneousAckNackAndCQI-Format4-Format5-r13 provided by higher layers is set TRUE, when a PUCCH format 4/5 transmission of CSI reports coincides with a sub-frame configured to the UE by higher layers for transmission of a scheduling request, the UE shall transmit the CSI and SR on the PUCCH; Otherwise, CSI is dropped;
- if the UE is configured with a single PUCCH format 4 resource according to higher layer parameter format4-MultiCSI-resourceConfiguration, the PUCCH format 4 resource is used for transmission of the CSI reports and SR (if any);

- if the UE is configured with a PUCCH format 5 resource according to higher layer parameter format5-MultiCSI-resourceConfiguration, the PUCCH format 5 resource is used for transmission of the CSI reports and SR (if any);

- if the UE is configured with two PUCCH format 4 resources and according to higher layer parameter format4-MultiCSI-resourceConfiguration, if , the PUCCH format 4 resource with the smaller between and is used for transmission of the CSI reports; otherwise, the PUCCH format 4 resource with the larger between and is used for transmission of the CSI reports, where

- - is the total number of CSI report bits in the subframe;

- - is the number of CRC bits;

- - if there is no scheduling request bit in the subframe and otherwise;

- - , , is the number of PRBs for and respectively, according to higher layer parameter numberOfPRB-format4-r13 according to Table 10.1.1-2;

- - if shortened PUCCH format 4 is used in the subframe and otherwise; and

- - is the code rate given by higher layer parameter maximumPayloadCoderate-r13 according to Table 10.1.1-1.

If a UE transmits only periodic CSI and SR (if any) using either a PUCCH format 4 or PUCCH format 5 in a subframe and if , the UE shall select the SR (if any) and CSI report(s) for transmission in ascending order of , where:

– is the total number of CSI report bits in the subframe;

– is the number of CRC bits

– if there is no scheduling request bit in the subframe and otherwise;

– for PUCCH format 4 and for PUCCH format 5, where if shortened PUCCH format 4 or shortened PUCCH format 5 is used in the subframe and otherwise;

– is the code rate given by higher layer parameter maximumPayloadCoderate-r13 according to Table 10.1.1-1;

– for a CSI report of a serving cell, for the CSI report is defined as, where

– for CSI report type 7/8/9/10, for CSI report type 3/5/6/2a/11, for CSI report type 2/2b/2c/4, and for CSI report type 1/1a;

– is the CSI process ID according to csi-ProcessId-r11 if the serving cell is configured with transmission mode 10, and if the serving cell configured with transmission mode 1-9;

– is the serving cell index;

– and for CSI subframe sets and respectively if CSI subframe sets are configured for the serving cell, and otherwise.

– The value of satisfies and , where if there no scheduling request bit in the subframe and otherwise. is the number of CSI report bits for the nth CSI report in ascending order of .

If a UE is configured with format4-MultiCSI-resourceConfiguration or format5-MultiCSI-resourceConfiguratio and if the UE is configured with more than periodic CSI reports in a subframe, the UE is not required to update CSI for more than CSI processes from the CSI processes corresponding to all the configured CSI reports, where the value of is given by maxNumberUpdatedCSI-Proc-r13.

If a UE configured with PUCCH format 4 or PUCCH format 5 transmits UCI over PUSCH, that would have been transmitted over PUCCH format 4 or PUCCH format 5 if the UE did not have a PUSCH grant, then the UE shall select the CSI report(s) (if any) for transmission following the same procedure as for transmission over PUCCH.

Table 7.2.2-1A: Mapping of to and for FDD or for FDD-TDD and primary cell frame structure type 1

Value of

0 ≤ ≤ 1

2 ≤ ≤ 6

– 2

7 ≤ ≤ 16

– 7

17 ≤ ≤ 36

– 17

37 ≤ ≤ 76

– 37

77 ≤ ≤ 156

– 77

157 ≤ ≤ 316

160

– 157

= 317

Reserved

318 ≤ ≤ 349

– 318

350 ≤ ≤ 413

– 350

414 ≤ ≤ 541

128

– 414

542 ≤ ≤ 601

– 542

602 ≤ ≤ 1023

Reserved

Table 7.2.2-1B: Mapping of to and .

Value of

0 ≤ ≤ 160

−

161 ≤ ≤ 321

− (– 161)

322 ≤ ≤ 482

− (– 322)

483 ≤ ≤ 643

− (– 483)

644 ≤ ≤ 804

− (– 644)

805 ≤ ≤ 965

− (– 805)

966 ≤ ≤ 1023

Reserved

Table 7.2.2-1C: Mapping of to and for TDD or for FDD-TDD and primary cell frame structure type 2

Value of

= 0

1 ≤ ≤ 5

– 1

6 ≤ ≤ 15

– 6

16 ≤ ≤ 35

– 16

36 ≤ ≤ 75

– 36

76 ≤ ≤ 155

– 76

156 ≤ ≤ 315

160

– 156

316 ≤ ≤ 375

– 316

376 ≤ ≤ 1023

Reserved

Table 7.2.2-1J: Mapping of to when RI reporting is configured

	Value of
0	1
1	2
2	4
3	8
4	16
5	32
6	64
7	128
7<≤1023	Reserved

Table 7.2.2-1K: Mapping of to and when the number of antenna ports in each configured CSI-RS resource is one

	Value of	Value of
0 ≤ ≤ 160	1	−
161 ≤ ≤ 321	2	− (– 161)
322 ≤ ≤ 482	4	− (– 322)
483 ≤ ≤ 643	8	− (– 483)
644 ≤ ≤ 804	16	− (– 644)
805 ≤ ≤ 965	32	− (– 805)
966 ≤ ≤ 1023	Reserved

Table 7.2.2-1L: Mapping of to and

	Value of	Value of
0 ≤ ≤ 160	1	−
161 ≤ ≤ 321	2	− (– 161)
322 ≤ ≤ 482	4	− (– 322)
483 ≤ ≤ 643	8	− (– 483)
644 ≤ ≤ 804	16	− (– 644)
805 ≤ ≤ 965	32	− (– 805)
966 ≤ ≤ 1023	Reserved

For TDD or FDD-TDD and primary cell frame structure type 2 periodic CQI/PMI reporting, the following periodicity values apply for a serving cell c depending on the TDD UL/DL configuration of the primary cell [3], where the UL/DL configuration corresponds to the eimta-HARQ-ReferenceConfig-r12 for the primary cell if the UE is configured with the parameter EIMTA-MainConfigServCell-r12 for the primary cell, or to the harq-ReferenceConfig-r14 for the primary cell when the UE is configured with the parameter harq-ReferenceConfig-r14:

– The reporting period of is applicable for the serving cell c only if TDD UL/DL configuration of the primary cell belongs to {0, 1, 3, 4, 6}, and where all UL subframes of the primary cell in a radio frame are used for CQI/PMI reporting.

– The reporting period of is applicable for the serving cell c only if TDD UL/DL configuration of the primary cell belongs to {0, 1, 2, 6}.

– The reporting periods of are applicable for the serving cell c for any TDD UL/DL configuration of the primary cell.

For a serving cell with , Mode 2-0 and Mode 2-1 are not supported for that serving cell.

The sub-sampled codebook for PUCCH mode 1-1 submode 2 for 8 CSI-RS ports is defined in Table 7.2.2-1D for first and second precoding matrix indicator and . Joint encoding of rank and first precoding matrix indicator for PUCCH mode 1-1 submode 1 for 8 CSI-RS ports is defined in Table 7.2.2-1E. The sub-sampled codebook for PUCCH mode 2-1 for 8 CSI-RS ports is defined in Table 7.2.2-1F for PUCCH Reporting Type 1a. For a BL/CE UE configured with CEModeA and PUCCH mode 1-1 for 8 CSI-RS ports, the entries in Table 7.2.2-1D and Table 7.2.2-1E corresponding to rank 1 are used, and the codebook indices and are given in Table 7.2.4-1.

For a UE configured with transmission mode 9 or 10, and the UE configured with parameter eMIMO-Type by higher layers, and eMIMO-Type is set to ‘CLASS A’, and PUCCH Reporting Type 1a, the sub-sampled codebook for PUCCH mode 2-1 for value of parameter codebookConfig set to 2, 3, or 4 is defined in Table 7.2.2-1F, for value of parameter codebookConfig set to 1, the value of the second PMI, , is set to .

Table 7.2.2-1D: PUCCH mode 1-1 submode 2 codebook subsampling

RI	Relationship between the first PMI value and codebook index		Relationship between the second PMI value and codebook index		total
RI	Value of the first PMI	Codebook index	Value of the second PMI	Codebook index	#bits
1	0-7		0-1		4
2	0-7		0-1		4
3	0-1		0-7		4
4	0-1		0-7		4
5	0-3		0	0	2
6	0-3		0	0	2
7	0-3		0	0	2
8	0	0	0	0	0

Table 7.2.2-1E: Joint encoding of RI and for PUCCH mode 1-1 submode 1

Value of joint encoding of RI and the first PMI	RI	Codebook index
0-7	1
8-15	2
16-17	3
18-19	4
20-21	5
22-23	6
24-25	7
26	8	0
27-31	reserved	NA

Table 7.2.2-1F: PUCCH mode 2-1 codebook subsampling

RI	Relationship between the second PMI value and codebook index
RI	Value of the second PMI	Codebook index
1	0-15
2	0-3
3	0-3
4	0-3
5	0	0
6	0	0
7	0	0
8	0	0

The sub-sampled codebook for PUCCH mode 1-1 submode 2 for transmission modes 8, 9 and 10 configured with alternativeCodeBookEnabledFor4TX-r12=TRUE is defined in Table 7.2.2-1G for first and second precoding matrix indicator and. Joint encoding of rank and first precoding matrix indicator for PUCCH mode 1-1 submode 1 for transmission modes 8, 9 and 10 configured with alternativeCodeBookEnabledFor4TX-r12=TRUE is defined in Table 7.2.2-1H. The sub-sampled codebook for PUCCH mode 2-1 for transmission modes 8, 9 and 10 configured with alternativeCodeBookEnabledFor4TX-r12=TRUE is defined in Table 7.2.2-1I for PUCCH Reporting Type 1a.

Table 7.2.2-1G: PUCCH mode 1-1 submode 2 codebook subsampling with 4 antenna ports

RI	Relationship between the first PMI value and codebook index		Relationship between the second PMI value and codebook index		total
RI	Value of the first PMI	Codebook index	Value of the second PMI	Codebook index	#bits
1	0-3		0-3		4
2	0-3		0-3		4
3	0	0	0-15		4
4	0	0	0-15		4

Table 7.2.2-1 H: Joint encoding of RI and for PUCCH mode 1-1 submode 1 with 4 antenna ports

Value of joint encoding of RI and the first PMI	RI	Codebook index
Value of joint encoding of RI and the first PMI	RI
0-7	1
8-15	2
16	3	0
17	4	0
18-31	reserved	NA

Table 7.2.2-1 I: PUCCH mode 2-1 codebook subsampling with 4 antenna ports

RI	Relationship between the second PMI value and codebook index
RI	Value of the second PMI	Codebook index
1	0-15
2	0-3
3	0-3
4	0-3

For a UE configured with transmission mode 9 or 10, and the UE configured with parameter advancedCodebookEnabled=TRUE and and PUCCH Reporting Type 2b, the sub-sampled codebook for PUCCH mode 1-1 for value of is defined in Table 7.2.2-1H, and for value of , the value of the second PMI, , is set to .

Table 7.2.2-1H: PUCCH mode 1-1 codebook subsampling, with parameter advancedCodebookEnabled=TRUE,

Relationship between the second PMI value and codebook index
Value of the second PMI	Codebook index
0	2048
1	2113
2	2178
3	2243
4	2568
5	2633
6	2698
7	2763
8	3348
9	3413
10	3478
11	3543
12	3868
13	3933
14	3998
15	4063

An CRI or RI or PTI or any precoding matrix indicator reported for a serving cell in a periodic reporting mode is valid only for CSI reports for that serving cell on that periodic CSI reporting mode.

For serving cell , a UE configured in transmission mode 10 with PMI/RI reporting or without PMI reporting for a CSI process can be configured with a ‘RI-reference CSI process’. The RI for the ‘RI-reference CSI process’ is not based on any other configured CSI process other than the ‘RI-reference CSI process’. If the UE is configured with a ‘RI-reference CSI process’ for a CSI process and if subframe sets and are configured by higher layers for only one of the CSI processes then the UE is not expected to receive configuration for the CSI process configured with the subframe subsets that have a different set of restricted RIs with precoder codebook subset restriction between the two subframe sets.The UE is not expected to receive configurations for the CSI process and the ‘RI-reference CSI process’ that have a different:

– periodic CSI reporting mode (including sub-mode if configured), and/or

– number of CSI-RS antenna ports, and/or

– set of restricted RIs with precoder codebook subset restriction if subframe sets and are not configured by higher layers for both CSI processes, and/or

– set of restricted RIs with precoder codebook subset restriction for each subframe set if subframe sets and are configured by higher layers for both CSI processes, and/or

– set of restricted RIs with precoder codebook subset restriction if subframe sets and are configured by higher layers for only one of the CSI processes, and the set of restricted RIs for the two subframe sets are the same, and/or

– number of CSI-RS antenna ports for any two CSI-RS resources for the two CSI processes, if a UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one for at least one of the two CSI processes, and/or

– set of restricted RIs with precoder codebook subset restriction for any two CSI-RS resources for the two CSI processes, if a UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one for at least one of the two CSI processes and if subframe sets and are not configured by higher layers for both CSI processes, and/or

– set of restricted RIs with precoder codebook subset restriction for each subframe set and for any two CSI-RS resources for the two CSI processes, if a UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one for at least one of the two CSI processes and if subframe sets and are configured by higher layers for both CSI processes, and/or

– set of restricted RIs with precoder codebook subset restriction for any two CSI-RS resources for the two CSI processes, if a UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one for at least one of the two CSI processes and if subframe sets and are configured by higher layers for only one of the CSI processes, and the set of restricted RIs for the two subframe sets are the same.

If a UE is configured for CRI reporting,

– For the calculation of CQI/PMI/RI conditioned on the last reported CRI, in the absence of a last reported CRI the UE shall conduct the CQI/PMI/RI calculation conditioned on the lowest possible CRI. If reporting for more than one CSI subframe set is configured, CQI/PMI/RI is conditioned on the last reported CRI linked to the same subframe set as the CSI report.

– For the calculation of CQI/PMI conditioned on the last reported RI and CRI, in the absence of a last reported RI and CRI, the UE shall conduct the CQI/PMI calculation conditioned on the lowest possible RI associated with the lowest possible CRI and as given by the bitmap parameter codebookSubsetRestriction and the parameter alternativeCodeBookEnabledFor4TX-r12 if configured. If reporting for more than one CSI subframe set is configured, CQI/PMI is conditioned on the last reported RI associated with the last reported CRI and linked to the same subframe set as the CSI report

otherwise,

– For the calculation of CQI/PMI conditioned on the last reported RI, in the absence of a last reported RI the UE shall conduct the CQI/PMI calculation conditioned on the lowest possible RI as given by the bitmap parameter codebookSubsetRestriction and the parameter alternativeCodeBookEnabledFor4TX-r12 if configured. If reporting for more than one CSI subframe set is configured, CQI/PMI is conditioned on the last reported RI linked to the same subframe set as the CSI report.

For a non-BL/CE UE, the periodic CSI reporting modes are described as following:
Wideband feedback
- Mode 1-0 description:
  - In the subframe where RI is reported (only for transmission mode 3, and transmission mode 9 or 10 without PMI reporting with one configured CSI-RS resource or with more than one configured CSI-RS resource and the number of CSI-RS ports of the selected CSI-RS resource is more than one):
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, for transmission mode 3 the UE shall determine a RI assuming transmission on set S subbands, and for transmission mode 9 or 10 without PMI reporting, the UE shall determine a RI assuming transmission on set S subbands, and conditioned on the last reported periodic CRI if the UE is configured with CRI reporting.
    - The UE shall report a type 3 report consisting of one RI.
  - In the subframe where RI and CRI is reported (for transmission mode 9 or 10 without PMI reporting and without higher layer parameter csi-RS-NZP-mode configured, and number of configured CSI-RS resources more than one, and for transmission mode 9 or 10 without PMI reporting and with higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and number of activated CSI-RS resources more than one):
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the reported CRI.
    - The UE shall report a type 7 report consisting of one RI and one CRI.
  - In the subframe where CRI is reported (only for transmission mode 9 or 10 with CRI reporting and the number of antenna ports in each of configured CSI-RS resources is one):
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - The UE shall report a type10 report consisting of one CRI.
  - In the subframe where CQI is reported:
    - If the UE is configured without PMI reporting (only for transmission mode 9 or 10):
      - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
      - A UE shall report a type 4 report consisting of

A single wideband CQI value which is calculated assuming the use of a single precoding matrix in all subbands and transmission on set S subbands.

When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.

- - - - If the UE is configured with CRI reporting,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process and last reported periodic CRI for the CSI process; otherwise the selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.

- - - - otherwise,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process; otherwise the selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI.

- - - otherwise,
      - A UE shall report a type 4 report consisting of one wideband CQI value which is calculated assuming transmission on set S subbands. The wideband CQI represents channel quality for the first codeword, even when RI>1.
      - For transmission mode 3 the CQI is calculated conditioned on the last reported periodic RI. For other transmission modes it is calculated conditioned on transmission rank 1. If the UE is configured with CRI reporting, the CQI is calculated conditioned on the last reported periodic CRI.
- Mode 1-1 description:
  - In the subframe where RI is reported (only for transmission modes 4, 8, 9 and 10):
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the last reported periodic CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands.
    - The UE shall report a type 3 report consisting of one RI.
  - In the subframe where RI and CRI is reported for transmission modes 9 and 10:
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the reported CRI for the CSI process.
    - The UE shall report a type 7 report consisting of one RI and one CRI.
  - In the subframe where RI and RPI is reported for transmission modes 9 and 10:
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands.
    - If the determined , RPI is set to 0; otherwise UE shall determine a RPI assuming transmission on set S subbands.

- - - The UE shall report a type 11 report consisting of one RI and one RPI.
  - In the subframe where RI and a first PMI are reported for transmission modes 9 and 10 configured with submode 1 and 8 CSI-RS ports without CRI reporting and not configured with advancedCodebookEnabled or 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, and for transmission modes 8, 9 and 10 configured with submode 1 and alternativeCodeBookEnabledFor4TX-r12=TRUE without CRI reporting and not configured with advancedCodebookEnabled:
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the last reported periodic CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands.
    - The UE shall report a type 5 report consisting of jointly coded RI and a first PMI corresponding to a set of precoding matrices selected from the codebook subset assuming transmission on set S subbands.
    - If the UE is configured with CRI reporting,
      - If the UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process and in case of collision of type 5 report for the CSI process with type 5 report for the ‘RI-reference CSI process’, the wideband first PMI for the CSI process shall be the same as the wideband first PMI in the most recent type 5 report for the configured ‘RI-reference CSI process’; otherwise, the wideband first PMI value is calculated conditioned on the reported periodic RI and last reported periodic CRI.
    - otherwise,
      - If the UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process and in case of collision of type 5 report for the CSI process with type 5 report for the ‘RI-reference CSI process’, the wideband first PMI for the CSI process shall be the same as the wideband first PMI in the most recent type 5 report for the configured ‘RI-reference CSI process’; otherwise, the wideband first PMI value is calculated conditioned on the reported periodic RI.
  - In the subframe where CRI, RI and a first PMI are reported for transmission modes 9, and 10 configured with submode 1 and 8 CSI-RS ports in at least one of the configured CSI-RS resources, or for transmission modes 8, 9 and 10 configured with submode 1 and alternativeCodeBookEnabledFor4TX-r12=TRUE and 4 CSI-RS ports in at least one of configured CSI-RS resources:
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the reported CRI.
    - If the configured CSI-RS resource corresponding to the determined CRI comprises 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE, the UE shall report a type 8 report consisting of jointly coded CRI, RI and a first PMI corresponding to a set of precoding matrices selected from the codebook subset assuming transmission on set S subbands. Otherwise, the UE shall report a type 8 report consisting of jointly coded CRI, RI and a first PMI fixed to zero.
    - If the UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process and in case of collision of type 5 report for the CSI process with type 5 report for the ‘RI-reference CSI process’, the wideband first PMI for the CSI process shall be the same as the wideband first PMI in the most recent type 5 report for the configured ‘RI-reference CSI process’; otherwise, the wideband first PMI value is calculated conditioned on the reported periodic RI and last reported periodic CRI conditioned on the reported CRI.
  - In the subframe where the wideband first PMI is reported, for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’, or for transmission modes 9 and 10 with higher layer parameter advancedCodebookEnabled =TRUE configured, and last reported periodic ,

- - - A set of precoding matrices corresponding to the wideband first PMI is selected from the codebook assuming transmission on set S subbands.
    - A UE shall report a type 2a report consisting of the wideband first PMI corresponding to the selected set of precoding matrices.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the wideband first PMI value for the CSI process is calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process; otherwise the wideband first PMI value is calculated conditioned on the last reported periodic RI.
  - In the subframe where CQI/PMI is reported for all transmission modes except with,
    - UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS A’, or
    - UE configured with higher layer parameter advancedCodebookEnabled=TRUE, and last reported periodic , or

- - - 8 CSI-RS ports configured for transmission modes 9 and 10, or with alternativeCodeBookEnabledFor4TX-r12=TRUE configured for transmission modes 8, 9 and 10, if the UE is not configured with higher layer parameter eMIMO-Type, or UE configured with CRI reporting, or UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured:
      - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
      - A UE shall report a type 2 report consisting of

A single wideband CQI value which is calculated assuming the use of a single precoding matrix in all subbands and transmission on set S subbands.

The selected single PMI (wideband PMI).

When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.

- - - - If the UE is configured with CRI reporting,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the PMI and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process; otherwise the PMI and CQI are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.

- - - - otherwise,

For transmission modes 4, 8, 9 and 10,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the PMI and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process; otherwise the PMI and CQI are calculated conditioned on the last reported periodic RI.

For other transmission modes the PMI and CQI are calculated conditioned on transmission rank 1.

- - In the subframe where wideband CQI/second PMI is reported for transmission modes 9 and 10 with 8 CSI-RS ports and submode 1 without CRI reporting, or for 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 8, 9 and 10 with submode 1 and alternativeCodeBookEnabledFor4TX-r12=TRUE without CRI reporting, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’, or for transmission modes 9 and 10 with higher layer parameter advancedCodebookEnabled =TRUE configured, and last reported periodic :

- - - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
    - A UE shall report a type 2b report consisting of
      - A single wideband CQI value which is calculated assuming the use of the single precoding matrix in all subbands and transmission on set S subbands.
      - The wideband second PMI corresponding to the selected single precoding matrix.
      - When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 5 report for the CSI process is dropped, and a type 5 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process,

The wideband second PMI value for the CSI process is calculated conditioned on the reported periodic RI and the wideband first PMI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process.

The wideband CQI value is calculated conditioned on the selected precoding matrix for the CSI process and the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process.

- - - - Otherwise,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI and the last reported periodic CRI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI and the last reported periodic CRI.

- - - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 5 report for the CSI process is dropped, and a type 5 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process,

- - - - Otherwise,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI.

- - In the subframe where wideband CQI/first PMI/second PMI is reported for transmission modes 9 and 10 with submode 2 and 8 CSI-RS ports configured without CRI reporting and not configured with advancedCodebookEnabled, or 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, and for transmission modes 8, 9 and 10 with submode 2 and alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting and not configured with advancedCodebookEnabled:
    - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
    - A UE shall report a type 2c report consisting of
      - A single wideband CQI value which is calculated assuming the use of a single precoding matrix in all subbands and transmission on set S subbands.
      - The wideband first PMI and the wideband second PMI corresponding to the selected single precoding matrix as defined in Clause 7.2.4.
      - When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the wideband first PMI, the wideband second PMI and the wideband CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise the wideband first PMI, the wideband second PMI and the wideband CQI are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.
    - otherwise
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the wideband first PMI, the wideband second PMI and the wideband CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process; otherwise the wideband first PMI, the wideband second PMI and the wideband CQI are calculated conditioned on the last reported periodic RI.
UE Selected subband feedback
- Mode 2-0 description:
  - In the subframe where RI is reported (only for transmission mode 3, and transmission mode 9 or 10 without PMI reporting with one configured CSI-RS resource or with more than one configured CSI-RS resource and the number of CSI-RS ports of the selected CSI-RS is more than one):
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, for transmission mode 3 the UE shall determine a RI assuming transmission on set S subbands, and for transmission mode 9 or 10 without PMI reporting, the UE shall determine a RI assuming transmission on set S subbands, and conditioned on the last reported periodic CRI if the UE is configured with CRI reporting.
    - The UE shall report a type 3 report consisting of one RI.
  - In the subframe where RI and CRI is reported (for transmission mode 9 or 10 without PMI reporting and without higher layer parameter csi-RS-NZP-mode configured, and number of configured CSI-RS resources more than one and the number of antenna ports in at least one of the configured CSI-RS resources is more than one, and for transmission mode 9 or 10 without PMI reporting and with higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and the number of activated CSI-RS resources more than one and the number of antenna ports in at least one of the activated CSI-RS resources is more than one):
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the reported CRI.
    - The UE shall report a type 7 report consisting of one RI and one CRI.
  - In the subframe where CRI is reported (only for transmission mode 9 or 10 with CRI reporting and the number of antenna ports in each of configured CSI-RS resources is one):
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - The UE shall report a type10 report consisting of one CRI.
  - In the subframe where wideband CQI is reported:
    - If the UE is configured without PMI reporting (only for transmission mode 9 or 10):
      - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
      - A UE shall report a type 4 report on each respective successive reporting opportunity consisting of

A single wideband CQI value which is calculated assuming the use of a single precoding matrix in all subbands and transmission on set S subbands.

When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.

- - - - If the UE is configured with CRI reporting,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the subband selection, selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise the subband selection, selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.

- - - - otherwise

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the subband selection, selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process; otherwise the subband selection, selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI.

- - - otherwise,
      - The UE shall report a type 4 report on each respective successive reporting opportunity consisting of one wideband CQI value which is calculated assuming transmission on set S subbands. The wideband CQI represents channel quality for the first codeword, even when RI>1.
      - For transmission mode 3 the CQI is calculated conditioned on the last reported periodic RI. For other transmission modes it is calculated conditioned on transmission rank 1. If the UE is configured with CRI reporting, the CQI is calculated conditioned on the last reported periodic CRI.
  - In the subframe where CQI for the selected subbands is reported:
    - If the UE is configured without PMI reporting (only for transmission mode 9 or 10):
      - The UE shall select the preferred subband within the set of N_j subbands in each of the J bandwidth parts where J is given in Table 7.2.2-2.
      - A single precoding matrix is selected from the codebook subset assuming transmission on on the selected subband within the applicable bandwidth part.
      - The UE shall report a type 1 report per bandwidth part on each respective successive reporting opportunity consisting of:

CQI value for codeword 0 reflecting transmission only over the selected subband of a bandwidth part determined in the previous step along with the corresponding preferred subband L-bit label.

When RI>1, an additional 3-bit subband spatial differential CQI value for codeword 1 offset level

Codeword 1 offset level = subband CQI index for codeword 0 – subband CQI index for codeword 1.

The mapping from the 3-bit subband spatial differential CQI value to the offset level is shown in Table 7.2-2.

- - - - If the UE is configured with CRI reporting,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise the selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.

- - - - otherwise,

If a UE is configured in transmission mode 10 with a ”RI-reference CSI process” for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ”RI-reference CSI process” is reported in the most recent RI reporting instance for the CSI process, the selected precoding matrix and CQI for the CSI process are calculated conditioned on the reported periodic RI for the configured ”RI-reference CSI process” in the most recent RI reporting instance for the CSI process; otherwise the selected precoding matrix and CQI are calculated conditioned on the last reported periodic RI.

- - - otherwise,
      - The UE shall select the preferred subband within the set of subbands in each of the J bandwidth parts where J is given in Table 7.2.2-2.

- - - - The UE shall report a type 1 report consisting of one CQI value reflecting transmission only over the selected subband of a bandwidth part determined in the previous step along with the corresponding preferred subband L-bit label. A type 1 report for each bandwidth part will in turn be reported in respective successive reporting opportunities. The CQI represents channel quality for the first codeword, even when RI>1.
      - For transmission mode 3 the preferred subband selection and CQI values are calculated conditioned on the last reported periodic RI. For other transmission modes they are calculated conditioned on transmission rank 1. If the UE is configured with CRI reporting, the preferred subband selection and CQI values are calculated conditioned on the last reported periodic CRI.
- Mode 2-1 description:
  - In the subframe where RI is reported for transmission mode 4, transmission mode 8 except with alternativeCodeBookEnabledFor4TX-r12=TRUE configured, transmission modes 9 and 10 with 2 CSI-RS ports, and transmission modes 9 and 10 with 4 CSI-RS ports except with alternativeCodeBookEnabledFor4TX-r12=TRUE configured, and for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, eMIMO-Type set to ‘CLASS B’, one CSI-RS resource configured, with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE:
    - If a UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the last reported periodic CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands.
    - The UE shall report a type 3 report consisting of one RI.
  - In the subframe where RI and PTI are reported, for transmission modes 9 and 10 with 8 CSI-RS ports configured and higher layer parameter eMIMO-Type not configured, or for transmission modes 9 and 10 with 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 9 and 10 with 8 CSI-RS ports configured and UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’,or for transmission modes 8, 9 and 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting then:
    - If a UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the last reported periodic CRI.
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the PTI for the CSI process shall be the same as the PTI in the most recent type 6 report for the configured ‘RI-reference CSI process’; otherwise, the UE shall determine a precoder type indication (PTI) conditioned on the last reported periodic CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands.
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the PTI for the CSI process shall be the same as the PTI in the most recent type 6 report for the configured ‘RI-reference CSI process’; otherwise, the UE shall determine a precoder type indication (PTI).
    - The PTI for the CSI process shall be equal to 1 if the RI reported jointly with the PTI is greater than 2 for transmission modes 8, 9, 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured.
    - The UE shall report a type 6 report consisting of one RI and the PTI.
  - In the subframe where RI and CRI are reported for transmission modes 9 and 10 with parameter eMIMO-Type configured by higher layers, except with higher layer parameter csi-RS-NZP-mode configured, and eMIMO-Type is set to ‘CLASS B’, and the number of configured CSI-RS resources is more than one and RI and CRI is reported for transmission modes 9 and 10 with higher layer parameter eMIMO-Type set to ‘CLASS B’ and higher layer parameter csi-RS-NZP-mode set to ‘multiShot’, and the number of activated CSI-RS resources is more than one:
    - A UE shall determine a CRI assuming transmission on set S subbands.
    - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the RI for the CSI process shall be the same as the RI in the most recent CSI report comprising RI for the configured ‘RI-reference CSI process’ irrespective of subframe sets if configured; otherwise, the UE shall determine a RI assuming transmission on set S subbands conditioned on the reported CRI for the CSI process.
    - If each of the maximum number of ports in the configured CSI-RS resources is 2, or 4 except with alternativeCodeBookEnabledFor4TX-r12=TRUE configured,
      - The UE shall report a type 7 report consisting of one RI and one CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, the PTI for the CSI process shall be the same as the PTI in the most recent type 6 report for the configured ‘RI-reference CSI process’; otherwise, the UE shall determine a precoder type indication (PTI) conditioned on the reported CRI for the CSI process.
      - If the configured CSI-RS resource corresponding to the determined CRI comprises 2 CSI-RS ports or 4 CSI-RS ports except with alternativeCodeBookEnabledFor4TX-r12=TRUE configured, PTI is fixed to zero.
      - The PTI for the CSI process shall be equal to 1 if the RI reported jointly with the PTI is greater than 2 for transmission modes 9, 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured.
      - The UE shall report a type 9 report consisting of one CRI, RI, and the PTI.
  - In the subframe where wideband CQI/PMI is reported for all transmission modes except with
    - UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS A’, or
    - 8 CSI-RS ports configured for transmission modes 9 and 10, or with alternativeCodeBookEnabledFor4TX-r12=TRUE configured for transmission modes 8, 9 and 10, if the UE is not configured with higher layer parameter eMIMO-Type, or UE is configured with CRI reporting, or UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured:
      - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
      - A UE shall report a type 2 report on each respective successive reporting opportunity consisting of:

A wideband CQI value which is calculated assuming the use of a single precoding matrix in all subbands and transmission on set S subbands.

The selected single PMI (wideband PMI).

When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.

- - - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the PMI and CQI values for the CSI process are calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise the PMI and CQI values are calculated conditioned on the last reported periodic RI and the last reported periodic CRI.
    - otherwise,
      - For transmission modes 4, 8, 9 and 10,

If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the PMI and CQI values for the CSI process are calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process; otherwise the PMI and CQI values are calculated conditioned on the last reported periodic RI.

- - - - For other transmission modes the PMI and CQI values are calculated conditioned on transmission rank 1.
  - In the subframe where the wideband first PMI is reported for transmission modes 9 and 10 with 8 CSI-RS ports configured and higher layer parameter eMIMO-Type not configured, or for transmission modes 9 and 10 with 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 9 and 10 with 8 CSI-RS ports configured and UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’, or for transmission modes 8, 9 and 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting:
    - A set of precoding matrices corresponding to the wideband first PMI is selected from the codebook subset assuming transmission on set S subbands.
    - A UE shall report a type 2a report on each respective successive reporting opportunity consisting of the wideband first PMI corresponding to the selected set of precoding matrices.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=0 is reported in the most recent RI reporting instance for the CSI process, the wideband first PMI value for the CSI process is calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise with the last reported PTI=0, the wideband first PMI value is calculated conditioned on the last reported periodic RI and the last reported periodic CRI.
    - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=0 is reported in the most recent RI reporting instance for the CSI process, the wideband first PMI value for the CSI process is calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process; otherwise with the last reported PTI=0, the wideband first PMI value is calculated conditioned on the last reported periodic RI.
  - In the subframe where wideband CQI/second PMI is reported, for transmission modes 9 and 10 with 8 CSI-RS ports configured and higher layer parameter eMIMO-Type not configured, or for transmission modes 9 and 10 with 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 9 and 10 with 8 CSI-RS ports configured and UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’,or for transmission modes 8,9, and 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting:
    - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
    - A UE shall report a type 2b report on each respective successive reporting opportunity consisting of:
      - A wideband CQI value which is calculated assuming the use of the selected single precoding matrix in all subbands and transmission on set S subbands.
      - The wideband second PMI corresponding to the selected single precoding matrix.
      - When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=1 is reported in the most recent RI reporting instance for the CSI process,

The wideband second PMI value for the CSI process is calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported wideband first PMI for the CSI process and the last reported periodic CRI for the CSI process,

- - - - Otherwise, with the last reported PTI=1,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI and the last reported periodic CRI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI and the last reported periodic CRI.

- - - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=1 is reported in the most recent RI reporting instance for the CSI process,

- - - - Otherwise, with the last reported PTI=1,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI.

- - - If the last reported first PMI was computed under an RI assumption that differs from the last reported periodic RI, or in the absence of a last reported first PMI, the conditioning of the second PMI value is not specified.
  - In the subframe where CQI for the selected subband is reported for all transmission modes except with
    - UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS A’, or
    - 8 CSI-RS ports configured for transmission modes 9 and 10, or with alternativeCodeBookEnabledFor4TX-r12=TRUE configured for transmission modes 8, 9 and 10, if the UE is not configured with higher layer parameter eMIMO-Type, or UE is configured with CRI reporting, or UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured:
      - The UE shall select the preferred subband within the set of N_j subbands in each of the J bandwidth parts where J is given in Table 7.2.2-2.
      - The UE shall report a type 1 report per bandwidth part on each respective successive reporting opportunity consisting of:

CQI value for codeword 0 reflecting transmission only over the selected subband of a bandwidth part determined in the previous step along with the corresponding preferred subband L-bit label.

When RI>1, an additional 3-bit subband spatial differential CQI value for codeword 1 offset level

Codeword 1 offset level = subband CQI index for codeword 0 – subband CQI index for codeword 1.

Assuming the use of the most recently reported single precoding matrix in all subbands and transmission on the selected subband within the applicable bandwidth part.

The mapping from the 3-bit subband spatial differential CQI value to the offset level is shown in Table 7.2-2.

- - - If the UE is configured with CRI reporting,
      - F If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the subband selection and CQI values for the CSI process are calculated conditioned on the last reported periodic wideband PMI for the CSI process and the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process; otherwise the subband selection and CQI values are calculated conditioned on the last reported periodic wideband PMI, RI and CRI.
    - otherwise,
      - For transmission modes 4, 8, 9 and 10,

If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 3 report for the CSI process is dropped, and a type 3 report for the ‘RI-reference CSI process’ is reported in the most recent RI reporting instance for the CSI process, the subband selection and CQI values for the CSI process are calculated conditioned on the last reported periodic wideband PMI for the CSI process and the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process; otherwise the subband selection and CQI values are calculated conditioned on the last reported periodic wideband PMI and RI.

- - - - For other transmission modes the subband selection and CQI values are calculated conditioned on the last reported PMI and transmission rank 1.
  - In the subframe where wideband CQI/second PMI is reported, for transmission modes 9 and 10 with 8 CSI-RS ports configured and higher layer parameter eMIMO-Type not configured, or for transmission modes 9 and 10 with 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 9 and 10 with 8 CSI-RS ports configured and UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’,or for transmission modes 8, 9 and 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting:
    - A single precoding matrix is selected from the codebook subset assuming transmission on set S subbands.
    - The UE shall report a type 2b report on each respective successive reporting opportunity consisting of:
      - A wideband CQI value which is calculated assuming the use of the selected single precoding matrix in all subbands and transmission on set S subbands.
      - The wideband second PMI corresponding to the selected single precoding matrix.
      - When RI>1, an additional 3-bit wideband spatial differential CQI, which is shown in Table 7.2-2.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=0 is reported in the most recent RI reporting instance for the CSI process,

- - - - otherwise, with the last reported PTI=0,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI and the last reported periodic CRI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI process and the last reported periodic CRI.

- - - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=0 is reported in the most recent RI reporting instance for the CSI process,

- - - - Otherwise, with the last reported PTI=0,

The wideband second PMI value is calculated conditioned on the last reported periodic RI and the wideband first PMI.

The wideband CQI value is calculated conditioned on the selected precoding matrix and the last reported periodic RI.

- - - If the last reported first PMI was computed under an RI assumption that differs from the last reported periodic RI, or in the absence of a last reported first PMI, the conditioning of the second PMI value is not specified.
  - In the subframe where subband CQI/second PMI for the selected subband is reported, for transmission modes 9 and 10 with 8 CSI-RS ports configured and higher layer parameter eMIMO-Type not configured, or for transmission modes 9 and 10 with 8 CSI-RS ports or 4 CSI-RS ports with alternativeCodeBookEnabledFor4TX-r12=TRUE in the selected CSI-RS resource and UE is configured with CRI reporting, or for transmission modes 9 and 10 with 8 CSI-RS ports configured and UE is configured with higher layer parameter eMIMO-Type, and eMIMO-Type is set to ‘CLASS B’, and one CSI-RS resource configured, and except with higher layer parameter alternativeCodebookEnabledCLASSB_K1=TRUE configured, or for transmission modes 9 and 10 with higher layer parameter eMIMO-Type configured, and eMIMO-Type set to ‘CLASS A’,or for transmission modes 8, 9 and 10 with alternativeCodeBookEnabledFor4TX-r12=TRUE configured without CRI reporting:
    - The UE shall select the preferred subband within the set of N_j subbands in each of the J bandwidth parts where J is given in Table 7.2.2-2.
    - The UE shall report a type 1a report per bandwidth part on each respective successive reporting opportunity consisting of:
      - CQI value for codeword 0 reflecting transmission only over the selected subband of a bandwidth part determined in the previous step along with the corresponding preferred subband L-bit label.
      - When RI>1, an additional 3-bit subband spatial differential CQI value for codeword 1 offset level

Codeword 1 offset level = subband CQI index for codeword 0 – subband CQI index for codeword 1.

Assuming the use of the precoding matrix corresponding to the selected second PMI and the most recently reported first PMI and transmission on the selected subband within the applicable bandwidth part.

- - - - The mapping from the 3-bit subband spatial differential CQI value to the offset level is shown in Table 7.2-2.
      - A second PMI of the preferred precoding matrix selected from the codebook subset assuming transmission only over the selected subband within the applicable bandwidth part determined in the previous step.
    - If the UE is configured with CRI reporting,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=1 is reported in the most recent RI reporting instance for the CSI process,

The subband second PMI values for the CSI process are calculated conditioned on the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported wideband first PMI for the CSI process and the last reported periodic CRI for the CSI process.

The subband selection and CQI values are calculated conditioned on the selected precoding matrix for the CSI process and the reported periodic RI for the configured ‘RI-reference CSI process’ in the most recent RI reporting instance for the CSI process and the last reported periodic CRI for the CSI process.

- - - - Otherwise, with the last reported PTI=1

The subband second PMI values are calculated conditioned on the last reported periodic RI and the wideband first PMI and the last reported periodic CRI.

The subband selection and CQI values are calculated conditioned on the selected precoding matrix and the last reported periodic RI and the last reported periodic CRI.

- - - otherwise,
      - If a UE is configured in transmission mode 10 with a ‘RI-reference CSI process’ for a CSI process, and the most recent type 6 report for the CSI process is dropped, and a type 6 report for the ‘RI-reference CSI process’ with PTI=1 is reported in the most recent RI reporting instance for the CSI process,

- - - - Otherwise, with the last reported PTI=1

The subband second PMI values are calculated conditioned on the last reported periodic RI and the wideband first PMI.

The subband selection and CQI values are calculated conditioned on the selected precoding matrix and the last reported periodic RI.

- - - If the last reported first PMI was computed under an RI assumption that differs from the last reported periodic RI, or in the absence of a last reported first PMI, the conditioning of the second PMI value is not specified.

Table 7.2.2-2: Subband Size (k) and Bandwidth Parts (J) vs. Downlink System Bandwidth

System Bandwidth	Subband Size k (RBs)	Bandwidth Parts (J)
System Bandwidth	Subband Size k (RBs)	Bandwidth Parts (J)
6 – 7	NA	NA
8 – 10	4	1
11 – 26	4	2
27 – 63	6	3
64 – 110	8	4

For a BL/CE UE, the periodic CSI reporting modes are described as following:

Wideband feedback
- Mode 1-0 description:
  - In the subframe where CQI is reported:
    - A UE shall report a type 4 report consisting of one wideband CQI value which is calculated assuming transmission on all narrowband(s) in the CSI reference resource. The wideband CQI is calculated conditioned on transmission rank 1.
- Mode 1-1 description:
  - In the subframe where a first PMI is reported for transmission modes 9 configured with submode 1 and 8 CSI-RS ports, the UE shall report a type 2a report consisting of a first PMI corresponding to a set of precoding matrices selected from the codebook subset assuming transmission on all narrowband(s) in the CSI reference resource. The wideband first PMI value is calculated conditioned on transmission rank 1.
  - In the subframe where wideband CQI/second PMI is reported for transmission modes 9 with 8 CSI-RS ports and submode 1:
    - A single precoding matrix is selected from the codebook subset assuming transmission on all narrowband(s) in the CSI reference resource.
    - A UE shall report a type 2b report consisting of
      - A single wideband CQI value which is calculated assuming the use of the single precoding matrix in all narrowband(s) in the CSI reference resource and transmission on all narrowband(s) in the CSI reference resource.
      - The wideband second PMI corresponding to the selected single precoding matrix.
    - The wideband second PMI is calculated conditioned on transmission rank 1 and the last reported wideband first PMI. The wideband CQI is calculated conditioned on the selected precoding matrix and transmission rank 1.
  - In the subframe where wideband CQI/first PMI/second PMI is reported for transmission modes 9 with submode 2 and 8 CSI-RS ports configured:
    - A single precoding matrix is selected from the codebook subset assuming transmission on all narrowband(s) in the CSI reference resource.
    - A UE shall report a type 2c report consisting of
      - A single wideband CQI value which is calculated assuming the use of the single precoding matrix in all narrowband(s) in the CSI reference resource and transmission on all narrowband(s) in the CSI reference resource.
      - The wideband first PMI and the wideband second PMI corresponding to the selected single precoding matrix as defined in Clause 7.2.4.
    - The wideband first PMI, the wideband second PMI and the wideband CQI are calculated conditioned on transmission rank 1.
  - In the subframe where CQI/PMI is reported:
    - A single precoding matrix is selected from the codebook subset assuming transmission on all narrowband(s) in the CSI reference resource. The PMI is calculated conditioned on transmission rank 1.
    - A UE shall report a type 2 report consisting of
      - A single wideband CQI value which is calculated assuming the use of a single precoding matrix in all narrowband(s) in the CSI reference resource and transmission on all narrowband(s) in the CSI reference resource. The wideband CQI is calculated conditioned on transmission rank 1.
      - The selected single PMI (wideband PMI).

If parameter ttiBundling provided by higher layers is set to TRUE and if an UL-SCH in subframe bundling operation collides with a periodic CSI reporting instance, then the UE shall drop the periodic CSI report of a given PUCCH reporting type in that subframe and shall not multiplex the periodic CSI report payload in the PUSCH transmission in that subframe. A UE is not expected to be configured with simultaneous PUCCH and PUSCH transmission when UL-SCH subframe bundling is configured.

If the UE is configured with higher layer paramter pusch-EnhancementsConfig, and if a PUSCH transmission spans more than one subframe as indicated by the repetition number field in DCI 0C, the UE shall drop the periodic CSI report of a given PUCCH reporting type in that subframe and shall not multiplex the periodic CSI report payload in the PUSCH transmission in that subframe. A UE is not expected to be configured with simultaneous PUCCH and PUSCH transmission when pusch-EnhancementsConfig is configured.

Table 7.2.2-3: PUCCH Reporting Type Payload size per PUCCH Reporting Mode and Mode State

PUCCH Reporting Type	Reported	Mode State	PUCCH Reporting Modes
			Mode 1-1	Mode 2-1	Mode 1-0	Mode 2-0
			(bits/BP^*)	(bits/BP^*)	(bits/BP^*)	(bits/BP^*)
1	Sub-band CQI	RI = 1	NA	4+L	NA	4+L
1	Sub-band CQI	RI > 1	NA	7+L	NA	4+L¹ 7+L²
1a	Sub-band CQI / second PMI	8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig={2,3,4}, RI = 1	NA	8+L	NA	NA
		8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig={2,3,4}, 1 < RI < 5	NA	9+L	NA	NA
		8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig={1,2,3,4} RI > 4	NA	7+L	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, RI = 1	NA	6+L	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, RI = 2	NA	9+L	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, 2<RI<5	NA	8+L	NA	NA
		4 antenna ports RI=1	NA	8+L	NA	NA
		4 antenna ports 1<RI≤4	NA	9+L	NA	NA
2	Wideband CQI/PMI	2 antenna ports RI = 1	6	6	NA	NA
		4 antenna ports RI = 1, Note⁵	8	8	NA	NA
		2 antenna ports RI > 1	8	8	NA	NA
		4 antenna ports RI > 1, Note⁵	11	11	NA	NA
		4 antenna ports RI = 1, Note⁶	7	7	NA	NA
		4 antenna ports RI = 2, Note⁶	10	10	NA	NA
		4 antenna ports RI = 3, Note⁶	9	9	NA	NA
		4 antenna ports RI = 4, Note⁶	8	8	NA	NA
		8 antenna ports RI = 1	8	8	NA	NA
		8 antenna ports 1<RI<4	11	11	NA	NA
		8 antenna ports RI = 4	10	10	NA	NA
		8 antenna ports RI > 4	7	7	NA	NA
2a	Wideband first PMI	8 antenna ports RI < 3	NA	4	NA	NA
		8 antenna ports 2 < RI < 8	NA	2	NA	NA
		8 antenna ports RI = 8	NA	0	NA	NA
		4 antenna ports 1≤RI≤2	NA	4	NA	NA
		4 antenna ports 2≤RI≤4	NA	NA	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, 1≤RI≤8	Note³	Note³	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig={2,3,4}	Note⁴	Note⁴	NA	NA
		4 antenna ports with advancedCodebookEnabled =True, 1≤RI≤2	3	NA	NA	NA
		4 antenna ports with advancedCodebookEnabled =True, 3≤RI≤4	0	NA	NA	NA
		8 antenna ports with advancedCodebookEnabled =True, 1≤RI≤2	6	NA	NA	NA
		8 antenna ports with advancedCodebookEnabled =True, 3≤RI≤7	2	NA	NA	NA
		8 antenna ports with advancedCodebookEnabled =True, RI=8	0	NA	NA	NA
		8/12/16/20/24/28/32 antenna ports with advancedCodebookEnabled =True and eMIMO-Type is set to ‘CLASS A’, 1≤RI≤8	Note⁷	NA	NA	NA
		8/12/16/20/24/28/32 antenna ports, eMIMO-Type and eMIMO-Type2 configured by higher layers, eMIMO-Type is set to ‘CLASS A’, eMIMO-Type2 is set to ‘CLASS B’, and maximum 1 or 2 layers are supported by the UE	Note⁸	Note⁸	Note⁸	Note⁸
2b	Wideband CQI / second PMI	8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig = {2,3,4}, RI = 1	8	8	NA	NA
		8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig = {2,3,4}, 1 < RI < 4	11	11	NA	NA
		8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig = {2,3,4}, RI = 4	10	10	NA	NA
		8 antenna ports or 8/12/16/20/24/28/32 antenna ports with codebookConfig = {1,2,3,4}, RI > 4	7	7	NA	NA
		4 antenna ports RI=1	8	8	NA	NA
		4 antenna port 1<RI≤4	11	11	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, RI = 1	6	6	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, RI = 2	9	9	NA	NA
		8/12/16/20/24/28/32 antenna ports with codebookConfig=1, 2<RI<5	8	8	NA	NA
		4/8 antenna ports with advancedCodebookEnabled =True or 8/12/16/20/24/28/32 antenna ports with advancedCodebookEnabled =True and eMIMO-Type is set to ‘CLASS A’, RI = 1	10	NA	NA	NA
		4/8 antenna ports with advancedCodebookEnabled =True or 8/12/16/20/24/28/32 antenna ports with advancedCodebookEnabled =True and eMIMO-Type is set to ‘CLASS A’, RI = 2	11	NA	NA	NA
2c	Wideband CQI / first PMI / second PMI	8 antenna ports RI = 1	8	NA	NA	NA
		8 antenna ports 1 < RI ≤ 4	11	NA	NA	NA
		8 antenna ports 4 < RI ≤ 7	9	NA	NA	NA
		8 antenna ports RI = 8	7	NA	NA	NA
		4 antenna ports RI=1	8	NA	NA	NA
		4 antenna port 1<RI≤4	11	NA	NA	NA
3	RI	2/4 antenna ports, 2-layer spatial multiplexing	1	1	1	1
		8 antenna ports, 2-layer spatial multiplexing	1	NA	NA¹ 1²	NA¹ 1²
		4 antenna ports, 4-layer spatial multiplexing	2	2	2	2
		8 antenna ports, 4-layer spatial multiplexing	2	NA	NA¹ 2²	NA¹ 2²
		8-layer spatial multiplexing	3	NA	NA¹ 3²	NA¹ 3²
		12/16/20/24/28/32 antenna ports, 2-layer spatial multiplexing	1	NA	NA	NA
		12/16/20/24/28/32 antenna ports, 4-layer spatial multiplexing	2	NA	NA	NA
		12/16/20/24/28/32 antenna ports, 8-layer spatial multiplexing	3	NA	NA	NA
4	Wideband CQI	RI = 1 or RI>1, without PMI/RI reporting	NA	NA	4	4
		RI = 1 without PMI reporting	NA	NA	4	4
		RI>1 without PMI reporting	NA	NA	7	7
5	RI/ first PMI	8 antenna ports, 2-layer spatial multiplexing	4	NA	NA	NA
		8 antenna ports, 4 and 8-layer spatial multiplexing	5
		4 antenna ports, 2-layer spatial multiplexing	4
		4 antenna ports, 4-layer spatial multiplexing	5
		8/12/16/20/24/28/32 antenna ports, eMIMO-Type and eMIMO-Type2 configured by higher layers, eMIMO-Type is set to ‘CLASS A’, eMIMO-Type2 is set to ‘CLASS B’, and maximum 4 or 8 layers are supported by the UE	Note⁹	Note⁹	Note⁹	Note⁹
6	RI/PTI	8 antenna ports, 2-layer spatial multiplexing	NA	2	NA	NA
		8 antenna ports, 4-layer spatial multiplexing	NA	3	NA	NA
		8 antenna ports, 8-layer spatial multiplexing	NA	4	NA	NA
		4 antenna ports, 2-layer spatial multiplexing	NA	2	NA	NA
		4 antenna ports, 4-layer spatial multiplexing	NA	3	NA	NA
		12/16/20/24/28/32 antenna ports, 2-layer spatial multiplexing	NA	2	NA	NA
		12/16/20/24/28/32 antenna ports, 4-layer spatial multiplexing	NA	3	NA	NA
		12/16/20/24/28/32 antenna ports, 8-layer spatial multiplexing	NA	4	NA	NA
7	CRI/RI	2-layer spatial multiplexing	k+1	k+1	k+1	k+1
		4-layer spatial multiplexing	k+2	k+2	k+2	k+2
		8-layer spatial multiplexing	k+3	k+3	k+3	k+3
8	CRI/RI/first PMI	2-layer spatial multiplexing	k+4	NA	NA	NA
8	CRI/RI/first PMI	4 and 8-layer spatial multiplexing	k+5	NA	NA	NA
9	CRI/RI/PTI	2-layer spatial multiplexing	NA	k+2	NA	NA
		4-layer spatial multiplexing	NA	k+3	NA	NA
		8-layer spatial multiplexing	NA	k+4	NA	NA
10	CRI	Without PMI/RI reporting	NA	NA	k	k
11	RI/RPI	2-layer spatial multiplexing	3	NA	NA	NA
		4-layer spatial multiplexing	4	NA	NA	NA
		8-layer spatial multiplexing	5	NA	NA	NA
NOTE ^: For wideband CQI reporting types, the stated payload size applies to the full bandwidth. NOTE 1: Without PMI/RI reporting NOTE 2: Without PMI reporting and without csi-RS-NZP-mode, whereis the number of configured CSI-RS resources or without PMI reporting and with higher layer parameter csi-RS-NZP-mode* set to ‘multiShot’ and activatedResources>1, where N is the number of activated CSI-RS resources. NOTE 3: Sum of Wideband first PMI i1,1 bit width and Wideband first PMI i1,2 bit width in Table 5.2.3.3.2-3B-1 of [4] with PTI=0 NOTE 4: Sum of Wideband first PMI i1,1 bit width and Wideband first PMI i1,2 bit width in Table 5.2.3.3.2-3B-2 of [4] with PTI=0 NOTE 5: Not configured with parameter eMIMO-Type by higher-layers NOTE 6: Configured with parameter eMIMO-Type by higher-layers Note 7: Sum of Wideband first PMI i1,1 bit width, Wideband first PMI i1,2 bit width, Wideband first PMI i1,3 bit width in Table 5.2.3.3.1-4C of [4] NOTE 8: Sum of Wideband first PMI i1,1 bit width and Wideband first PMI i1,2 bit width in Table 5.2.3.3.1-4D of [4] with Max 1 or 2 layers. NOTE 9: Sum of Wideband first PMI i1,1 bit width, Wideband first PMI i1,2 bit width and RI bit width in Table 5.2.3.3.1-4D of [4] with Max 4 or 8 layers.