9.2.2 Minimum requirement PUCCH 1-1 (Cell-Specific Reference Symbols)
36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception
The minimum requirements for dual codeword transmission are defined in terms of a reporting spread of the wideband CQI value for codeword #1, and their BLER performance using the transport format indicated by the reported CQI median of codeword #0 and codeword #1. The precoding used at the transmitter is a fixed precoding matrix specified by the bitmap parameter codebookSubsetRestriction. The propagation condition assumed for the minimum performance requirement is defined in subclause B.1.
9.2.2.1 FDD
The following requirements apply to UE Category ≥2. For the parameters specified in table 9.2.2.1-1, and using the downlink physical channels specified in tables C.3.2-1 and C.3.2-2, the reported offset level of the wideband spatial differential CQI for codeword #1 (Table 7.2-2 in TS 36.213 [6]) shall be used to determine the wideband CQI index for codeword #1 as
wideband CQI1 = wideband CQI0 – Codeword 1 offset level
The wideband CQI1 shall be within the set {median CQI1 -1, median CQI1, median CQI1 +1} for more than 90% of the time, where the resulting wideband values CQI1 shall be used to determine the median CQI values for codeword #1. For both codewords #0 and #1, the PDSCH BLER using the transport format indicated by the respective median CQI0 – 1 and median CQI1 – 1 shall be less than or equal to 0.1. Furthermore, for both codewords #0 and #1, the PDSCH BLER using the transport format indicated by the respective median CQI0 + 1 and median CQI1 + 1 shall be greater than or equal to 0.1.
Table 9.2.2.1-1: PUCCH 1-1 static test (FDD)
|
Parameter |
Unit |
Test 1 |
Test 2 |
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|
Bandwidth |
MHz |
10 |
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|
PDSCH transmission mode |
4 |
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|
Downlink power allocation |
|
dB |
-3 |
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|
|
dB |
-3 |
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|
σ |
dB |
0 |
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|
Propagation condition and antenna configuration |
Clause B.1 (2 x 2) |
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|
CodeBookSubsetRestriction bitmap |
010000 |
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|
SNR (Note 2) |
dB |
10 |
11 |
16 |
17 |
|
|
|
dB[mW/15kHz] |
-88 |
-87 |
-82 |
-81 |
|
|
|
dB[mW/15kHz] |
-98 |
-98 |
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|
Max number of HARQ transmissions |
1 |
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|
Physical channel for CQI/PMI reporting |
PUCCH Format 2 |
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|
PUCCH Report Type for CQI/PMI |
2 |
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|
PUCCH Report Type for RI |
3 |
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|
Reporting periodicity |
ms |
Npd = 5 |
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|
cqi-pmi-ConfigurationIndex |
6 |
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|
ri-ConfigIndex |
1 (Note 3) |
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|
Note 1: Reference measurement channel RC.2 FDD according to Table A.4-1 with one sided dynamic OCNG Pattern OP.1 FDD as described in Annex A.5.1.1. Note 2: For each test, the minimum requirements shall be fulfilled for at least one of the two SNR(s) and the respective wanted signal input level. Note 3: It is intended to have UL collisions between RI reports and HARQ-ACK, since the RI reports shall not be used by the eNB in this test. |
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9.2.2.2 TDD
The following requirements apply to UE Category ≥2. For the parameters specified in table 9.2.2.2-1, and using the downlink physical channels specified in tables C.3.2-1 and C.3.2-2, the reported offset level of the wideband spatial differential CQI for codeword #1 (Table 7.2-2 in TS 36.213 [6]) shall be used to determine the wideband CQI index for codeword #1 as
wideband CQI1 = wideband CQI0 – Codeword 1 offset level
The wideband CQI1 shall be within the set {median CQI1 -1, median CQI1, median CQI1 +1} for more than 90% of the time, where the resulting wideband values CQI1 shall be used to determine the median CQI values for codeword #1. For both codewords #0 and #1, the PDSCH BLER using the transport format indicated by the respective median CQI0 – 1 and median CQI1 – 1 shall be less than or equal to 0.1. Furthermore, for both codewords #0 and #1, the PDSCH BLER using the transport format indicated by the respective median CQI0 + 1 and median CQI1 + 1 shall be greater than or equal to 0.1.
Table 9.2.2.2-1: PUCCH 1-1 static test (TDD)
|
Parameter |
Unit |
Test 1 |
Test 2 |
|||
|
Bandwidth |
MHz |
10 |
||||
|
PDSCH transmission mode |
4 |
|||||
|
Uplink downlink configuration |
2 |
|||||
|
Special subframe configuration |
4 |
|||||
|
Downlink power allocation |
|
dB |
-3 |
|||
|
|
dB |
-3 |
||||
|
σ |
dB |
0 |
||||
|
Propagation condition and antenna configuration |
Clause B.1 (2 x 2) |
|||||
|
CodeBookSubsetRestriction bitmap |
010000 |
|||||
|
SNR (Note 2) |
dB |
10 |
11 |
16 |
17 |
|
|
|
dB[mW/15kHz] |
-88 |
-87 |
-82 |
-81 |
|
|
|
dB[mW/15kHz] |
-98 |
-98 |
|||
|
Max number of HARQ transmissions |
1 |
|||||
|
Physical channel for CQI/PMI reporting |
PUSCH (Note 3) |
|||||
|
PUCCH Report Type |
2 |
|||||
|
Reporting periodicity |
ms |
Npd = 5 |
||||
|
cqi-pmi-ConfigurationIndex |
3 |
|||||
|
ri-ConfigIndex |
805 (Note 4) |
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|
ACK/NACK feedback mode |
Multiplexing |
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|
Note 1: Reference measurement channel RC.2 TDD according to Table A.4-1 with one sided dynamic OCNG Pattern OP.1 TDD as described in Annex A.5.2.1. Note 2: For each test, the minimum requirements shall be fulfilled for at least one of the two SNR(s) and the respective wanted signal input level. Note 3: To avoid collisions between CQI/PMI reports and HARQ-ACK it is necessary to report both on PUSCH instead of PUCCH. PDCCH DCI format 0 shall be transmitted in downlink SF#3 and #8 to allow periodic CQI/PMI to multiplex with the HARQ-ACK on PUSCH in uplink subframe SF#7 and #2. Note 4: RI reporting interval is set to the maximum allowable length of 160ms to minimise collisions between RI, CQI/PMI and HARQ-ACK reports. In the case when all three reports collide, it is expected that CQI/PMI reports will be dropped, while RI and HARQ-ACK will be multiplexed. At eNB, CQI report collection shall be skipped every 160ms during performance verification. |
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