9.11 Reporting of Hybrid Channel state information
36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception
9.11.1 Minimum requirement (with eMIMO-Type configured as Class B with more than one CSI-RS resource configured and eMIMO-Type2 as Class B with one CSI-RS resource configured)
The purpose of this test is to verify that the reported CRI(1) from eMIMO-Type and PMI(2) from eMIMO-Type2 are accurate.
The accuracy of CRI and PMI reporting are determined by the ratio of the throughput obtained when transmitting based on UE reported CRI(1) and PMI(2) compared to that obtained when transmitting based on the random precoding and fixed CRI:
– is [70%] of the maximum throughput obtained at using following precoder according to UE reported PMI(2) for eMIMO-Type2 and power scaling factor according to UE reported CRI (1) for eMIMO-Type
– is throughput obtained at using random precoder and power scaling factor according to the one configured CSI-RS resource
– is specified based on CRS RE power
9.11.1.1 FDD
For the parameters specified in Table 9.11.1.1-1, and using the downlink physical channels specified in Annex C.3.2, the minimum requirements are specified in Table 9.11.1.1-2.
Table 9.11.1.1-1: CRI/PMI test for single layer (FDD)
|
Parameter |
Unit |
Test 1 |
|
|
Bandwidth |
MHz |
10 |
|
|
Transmission mode |
9 |
||
|
Propagation channel |
EPA5 |
||
|
Precoding granularity (only for reporting and following PMI) |
PRB |
50 |
|
|
Correlation and antenna configuration |
4*2 ULA Low |
||
|
Cell-specific reference signals |
Antenna ports 0,1 |
||
|
Beamforming model |
B.4.6 (Note 4) |
||
|
CSI reference signal configuration List |
{0,1} |
||
|
Number of CSI-RS ports (Nk) |
{4,4} |
||
|
CSI-RS-SubframeConfig List |
{1,1} |
||
|
eMIMO-Type |
Class B |
||
|
Number of NZP-CSI resources (K) |
2 for following CRI |
||
|
NZP-CSI-RS-ID-List |
{0,1} |
||
|
eMIMO-Type2 |
Class B |
||
|
NZP-CSI-RS-ID |
{0} |
||
|
alternativeCodebookEnabledCLASSB_K1 |
FALSE |
||
|
codebookSubsetRestriction |
001111 |
||
|
Reporting mode |
PUSCH 3-1 |
||
|
Physical channel for CRI(1) reporting |
PUSCH |
||
|
Reporting interval for CRI(1) reporting |
ms |
40 (Note 5) |
|
|
Physical channel for RI(2)/CQI(2)/PMI(2) reporting |
PUSCH |
||
|
Reporting Interval for RI(2)/CQI(2)/PMI(2) reporting |
ms |
5 |
|
|
Downlink power allocation |
 |
dB |
0 |
 |
dB |
0 |
|
|
Pc |
dB |
-3 |
|
|
σ |
dB |
-3 |
|
|
Rank Number of PDSCH |
1 |
||
|
Measurement channel |
R.50A-1 FDD |
||
|
OCNG Pattern |
OP.1 FDD |
||
|
Max number of HARQ transmissions |
4 |
||
|
Redundancy version coding sequence |
{0,1,2,3} |
||
|
Scheduled PDSCH SFs |
SF 0,2,3,4,7,8,9 |
||
|
Note 1: For random precoder selection, the precoder shall be updated in each TTI (1 ms granularity). Note 2: If the UE reports in an available uplink reporting instance at subrame SF#n based on CRI,PMI estimation at a downlink SF not later than SF#(n-4), this reported CRI, PMI cannot be applied at the eNB downlink before SF#(n+4). Note 3: To avoid collisions between CQI/PMI reports and HARQ-ACK it is necessary to report both on PUSCH instead of PUCCH. Note 4: The precoder matrix as specified in Table 6.3.4.2.3-1of [4].For following PMI, PMI equals to UE reported PMI(2) for eMIMO-Type2 “Class B”. Note 5: PDCCH DCI format 0 with a trigger for aperiodic CSI of eMIMIO-Type shall be transmitted in downlink SF#1 to allow aperiodic CRI(1) to be transmitted on uplink SF#5. PDCCH DCI format 0 with a trigger for aperiodic CSI of eMIMIO-Type2 shall be transmitted in downlink SF#1,6 to allow aperiodic RI(2)/CQI(2)/PMI(2) to be transmitted on uplink SF#5,0. |
|||
Table 9.11.1.1-2: Minimum requirement (FDD)
|
Parameter |
Test 1 |
|
|
[1.3] |
|
UE Category |
≥2 |
9.11.1.2 TDD
For the parameters specified in Table 9.11.1.2-1, and using the downlink physical channels specified in Annex C.3.2, the minimum requirements are specified in Table 9.11.1.2-2.
Table 9.11.1.2-1: CRI/PMI test for single layer (TDD)
|
Parameter |
Unit |
Test 1 |
|
|
Bandwidth |
MHz |
10 |
|
|
Transmission mode |
9 |
||
|
Uplink downlink configuration |
2 |
||
|
Special subframe configuration |
4 |
||
|
Propagation channel |
EPA5 |
||
|
Precoding granularity (only for reporting and following PMI) |
PRB |
50 |
|
|
Correlation and antenna configuration |
4*2 ULA Low |
||
|
Cell-specific reference signals |
Antenna ports 0,1 |
||
|
Beamforming model |
B.4.6 (Note 4) |
||
|
CSI reference signal configuration List |
{0,1} |
||
|
Number of CSI-RS ports (Nk) |
{4,4} |
||
|
CSI-RS-SubframeConfig List |
{9,9} |
||
|
eMIMO-Type |
Class B |
||
|
Number of NZP-CSI resources (K) |
2 for following CRI |
||
|
NZP-CSI-RS-ID-List |
{0,1} |
||
|
eMIMO-Type2 |
Class B |
||
|
NZP-CSI-RS-ID |
{0} |
||
|
alternativeCodebookEnabledCLASSB_K1 |
FALSE |
||
|
codebookSubsetRestriction |
001111 |
||
|
Reporting mode |
PUSCH 3-1 |
||
|
Physical channel for CRI(1) reporting |
PUSCH |
||
|
Reporting interval for CRI(1) reporting |
ms |
40 (Note 5) |
|
|
Physical channel for RI(2)/CQI(2)/PMI(2) reporting |
PUSCH |
||
|
Reporting Interval for RI(2)/CQI(2)/PMI(2) reporting |
ms |
10 |
|
|
Downlink power allocation |
 |
dB |
0 |
 |
dB |
0 |
|
|
Pc |
dB |
-3 |
|
|
σ |
dB |
-3 |
|
|
Rank Number of PDSCH |
1 |
||
|
Measurement channel |
R.44A-1 TDD |
||
|
OCNG Pattern |
OP.1 TDD |
||
|
Max number of HARQ transmissions |
4 |
||
|
Redundancy version coding sequence |
{0,1,2,3} |
||
|
Scheduled PDSCH SFs |
SF 0,1,3,6,8,9 |
||
|
Note 1: For random precoder selection, the precoder shall be updated in each TTI (1 ms granularity). Note 2: If the UE reports in an available uplink reporting instance at subrame SF#n based on CRI,PMI estimation at a downlink SF not later than SF#(n-4), this reported CRI, PMI cannot be applied at the eNB downlink before SF#(n+4). Note 3: To avoid collisions between CQI/PMI reports and HARQ-ACK it is necessary to report both on PUSCH instead of PUCCH. Note 4: The precoder matrix as specified in Table 6.3.4.2.3-1of [4].For following PMI, PMI equals to UE reported PMI(2) for eMIMO-Type2 “Class B”. Note 5: PDCCH DCI format 0 with a trigger for aperiodic CSI of eMIMIO-Type shall be transmitted in downlink SF#4 to allow aperiodic CRI(1) to be transmitted on uplink SF#4. PDCCH DCI format 0 with a trigger for aperiodic CSI of eMIMIO-Type2 shall be transmitted in downlink SF#4 to allow aperiodic RI(2)/CQI(2)/PMI(2) to be transmitted on uplink SF#2. |
|||
Table 9.11.2.2-2: Minimum requirement (TDD)
|
Parameter |
Test 1 |
|
|
[1.3] |
|
UE Category |
≥2 |