9.9.3 Reporting of Precoding Matrix Indicator (PMI) for 4Rx UE
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
9.9.3.1 PMI Reporting – PUSCH 3-1 (Single PMI) (Cell-Specific Reference Symbols)
9.9.3.1.1 TDD PMI Reporting – PUSCH 3-1 (Single PMI) 8×4
9.9.3.1.1.1 Test purpose
To test the accuracy of the Precoding Matrix Indicator (PMI) reporting such that the system throughput is maximized based on the precoders configured according to the UE reports.
9.9.3.1.1.2 Test applicability
This test applies to all types of E-UTRA TDD release 10 to release 14 UEs of Category 2 and onwards that support 4 Rx antenna ports in any TDD RF band. Applicability requires support for FGI bit 104.
This test applies to all types of E-UTRA TDD release 15 and forward UE of Categories 2 to 10 (except for Category 8), and UE DL Categories up to 10 or DL Category 13 that support 4 Rx antenna ports in any TDD RF band. Applicability requires support for FGI bits 104.
This test applies to all types of E-UTRA TDD release 15 and forward UE of Category 8, Categories 11 and higher, or UE DL Categories 11, 12, 14 and higher that support 4 Rx antenna ports in any TDD RF band.
9.9.3.1.1.3 Minimum conformance requirements
For the parameters specified in Table 9.9.3.1.1.3-1, and using the downlink physical channels specified in Annex C.3.2, the minimum requirements are specified in Table 9.9.3.1.1.3-2.
Table 9.9.3.1.1.3-1: PMI test for single-layer (TDD)
|
Parameter |
Unit |
Test 1 |
|
|
Bandwidth |
MHz |
10 |
|
|
Transmission mode |
9 |
||
|
Uplink downlink configuration |
1 |
||
|
Special subframe configuration |
4 |
||
|
Propagation channel |
EVA5 |
||
|
Precoding granularity |
PRB |
50 |
|
|
Antenna configuration |
8 x 4 |
||
|
Correlation modelling |
High, Cross polarized |
||
|
Cell-specific reference signals |
Antenna ports 0,1 |
||
|
CSI reference signals |
Antenna ports 15,…,22 |
||
|
Beamforming model |
Annex B.4.3 |
||
|
CSI-RS periodicity and subframe offset TCSI-RS / ∆CSI-RS |
5/ 4 |
||
|
CSI-RS reference signal configuration |
0 |
||
|
CodeBookSubsetRestriction bitmap |
0x0000 0000 001F FFE0 0000 0000 FFFF |
||
|
Downlink power allocation |
|
dB |
0 |
|
|
dB |
0 |
|
|
Pc |
dB |
-6 |
|
|
σ |
dB |
-3 |
|
|
|
dB[mW/15kHz] |
-98 |
|
|
Reporting mode |
PUSCH 3-1 |
||
|
Reporting interval |
ms |
5 |
|
|
PMI delay (Note 2) |
ms |
10 |
|
|
Measurement channel |
R.45-2 |
||
|
OCNG Pattern |
OP.1 TDD |
||
|
Max number of HARQ transmissions |
4 |
||
|
Redundancy version coding sequence |
{0,0,1,2} |
||
|
ACK/NACK feedback mode |
Multiplexing |
||
|
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 subframe SF#n based on PMI estimation at a downlink SF not later than SF#(n-4), this reported PMI cannot be applied at the eNB downlink before SF#(n+4). Note 3: PDCCH DCI format 0 with a trigger for aperiodic CQI shall be transmitted in downlink SF#4 and #9 to allow aperiodic CQI/PMI/RI to be transmitted on uplink SF#3 and #8. Note 4: Randomization of the principle beam direction shall be used as specified in B.2.3A.4 |
|||
Table 9.9.3.1.1.3-2: Minimum requirement (TDD)
|
Parameter |
Test 1 |
|
|
2.5 |
|
UE Category |
≥2 |
The normative reference for this requirement is TS 36.101 [2] clause 9.9.3.1.1.
9.9.3.1.1.4 Test description
9.9.3.1.1.4.1 Initial conditions
Initial conditions are a set of test configurations the UE needs to be tested in and the steps for the SS to take with the UE to reach the correct measurement state.
Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.
Test Environment: Normal as defined in TS 36.508 [7] clause 4.1.
Frequencies to be tested: Mid Range as defined in TS 36.508 [7] clause 4.3.1.2.
Channel Bandwidths to be tested: 10MHz, as defined in TS 36.508 [7] clause 4.3.1.2.
1. Connect the SS to the UE antenna connector (s) as shown in TS 36.508 [7] Annex A, Figure A.77.
2. The parameter settings for the cell are set up according to Table 9.9.3.1.1.3-1.
3. Downlink signals are initially set up according to Annex C.1 and Annex C.3.2, and uplink signals according to Annex H.1 and H.3.2.
4. Propagation conditions are set according to Annex B clause B.0
5. Ensure the UE is in State 3A-RF according to TS 36.508 [7] clause 5.2A.2. Message contents are defined in clause 9.9.3.1.1.4.3.
9.9.3.1.1.4.2 Test procedure
1. Set the bandwidth, propagation condition, antenna configuration and measurement channel parameters according to Table 9.9.3.1.1.3-1 as appropriate.
2. The SS shall transmit PDSCH via PDCCH DCI format 2C for C_RNTI to transmit the DL RMC with randomly selected precoding matrix from codebook (Table 7.2.4-1 in TS 36.213 [10]) every subframe regardless of PMI reports from the UE. Note that each precoding matrix shall be selected in equal probabilities. The SS sends downlink MAC padding bits on the DL RMC. SS schedules the UL transmission to carry the PUSCH CQI feedback via PDCCH DCI format 0 with CQI request bit set to 1 and I_MCS=29 and N_PRB allocated to be less or equal to 4. Establish 
and 
according to annex G.5.2.
3. Set SNR to 
. The SS shall transmit PDSCH with precoding matrix according to PMI report from the UE. The SS sends downlink MAC padding bits on the DL RMC. SS schedules the UL transmission to carry the PUSCH CQI feedback via PDCCH DCI format 0 with CQI request bit set to 1 and I_MCS=29 and N_PRB allocated to be less or equal to 4. Measure 
according to Annex G.5.3.
4. Calculate 
If the ratio (throughput / 
) ≥ which is specified in table 9.9.3.1.1.5-1, then the test is pass. Otherwise, the test is fail.
9.9.3.1.1.4.3 Message contents
Message contents are according to TS 36.508 [7] clause 4.6 with the following exceptions:
Table 9.9.3.1.1.4.3-1: PhysicalConfigDedicated-DEFAULT
|
Derivation Path: 36.508 clause 5.5.1.2 |
||||
|
Information Element |
Value/remark |
Comment |
Condition |
|
|
PhysicalConfigDedicated-DEFAULT ::= SEQUENCE { |
||||
|
cqi-ReportConfig-r10 |
CQI-ReportConfig-r10-DEFAULT |
|||
|
antennaInfo |
Not present |
|||
|
antennaInfo-r10 CHOICE { |
||||
|
explicitValue-r10 |
AntennaInfoDedicated-r10 |
|||
|
} |
||||
|
csi-RS-Config-r10 |
CSI-RS-Config-r10 |
|||
|
} |
||||
Table 9.9.3.1.1.4.3-2: PDSCH-ConfigDedicated-DEFAULT
|
Derivation Path: 36.508 clause 4.6.3 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
PDSCH-ConfigDedicated-DEFAULT ::= SEQUENCE { |
|||
|
p-a |
dB0 |
||
|
} |
|||
Table 9.9.3.1.1.4.3-3: AntennaInfoDedicated-r10
|
Derivation Path: 36.331 clause 6.3.2 |
||||
|
Information Element |
Value/remark |
Comment |
Condition |
|
|
AntennaInfoDedicated-r10 ::= SEQUENCE { |
||||
|
transmissionMode-r10 |
tm9-v1020 |
|||
|
codebookSubsetRestriction-r10 |
0x0000 0000 001F FFE0 0000 0000 FFFF |
|||
|
ue-TransmitAntennaSelection CHOICE{ |
||||
|
release |
NULL |
|||
|
} |
||||
|
} |
||||
Table 9.9.3.1.1.4.3-4: CQI-ReportConfig-r10-DEFAULT
|
Derivation Path: 36.508 clause 4.6.3 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
CQI-ReportConfig-r10 ::= SEQUENCE { |
|||
|
cqi-ReportAperiodic-r10 |
rm31 |
||
|
nomPDSCH-RS-EPRE-Offset |
0 |
||
|
cqi-ReportPeriodic-r10 |
Not present |
||
|
pmi-RI-Report-r9 |
setup |
||
|
} |
|||
Table 9.9.3.1.1.4.3-5: PUCCH-ConfigDedicated-DEFAULT
|
Derivation Path: 36.508 clause 4.6.3 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
PUCCH-ConfigDedicated-DEFAULT ::= SEQUENCE { |
|||
|
ackNackRepetition CHOICE { |
|||
|
release |
NULL |
||
|
} |
|||
|
tddAckNackFeedbackMode |
Multiplexing |
Multiplexing is selected as default to align with RAN4’s assumptions in RF tests. |
TDD |
|
} |
|||
Table 9.9.3.1.1.4.3-6: TDD-Config-DEFAULT
|
Derivation Path: 36.508 clause 4.6.3 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
TDD-Config-DEFAULT ::= SEQUENCE { |
|||
|
subframeAssignment |
sa1 |
||
|
specialSubframePatterns |
ssp4 |
||
|
} |
|||
Table 9.9.3.1.1.4.3-7: CSI-RS-Config
|
Derivation Path: 36.331 clause 6.3.2 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
CSI-RS-Config-r10 ::= SEQUENCE { |
|||
|
csi-RS-r10 CHOICE{ |
|||
|
setup SEQUENCE { |
|||
|
antennaPortsCount-r10 |
an8 |
Parameter represents the number of antenna ports used for transmission of CSI reference signals |
|
|
resourceConfig-r10 |
0 |
Parameter: CSI reference signal configuration |
|
|
subframeConfig-r10 |
4 |
|
|
|
p-C-r10 |
-6 |
Parameter: |
|
|
} |
|||
|
} |
|||
|
zeroTxPowerCSI-RS-r10 CHOICE{ |
|||
|
release |
NULL |
||
|
} |
|||
|
} |
|||
= 
when CSI-RS SubframeConfig is from 0-4; Parameter: 
which is the assumed ratio of PDSCH EPRE to CSI-RS EPRE when UE derives CSI feedback9.9.3.1.1.5 Test requirement
Table 9.9.3.1.1.5-1: Test requirement (TDD)
|
Parameter |
Test 1 |
|
|
2.49 |
|
UE Category |
≥2 |