8.7.14 TDD DC (4 Rx)
36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception
The parameters specified in Table 8.7.14-1 are valid for all TDD tests for 4Rx capable UEs unless otherwise stated.
Table 8.7.14-1: Common Test Parameters (TDD)
|
Parameter |
Unit |
Value |
|
Transmission mode |
3 |
|
|
Special subframe configuration |
4 |
|
|
Cyclic prefix |
Normal |
|
|
Cell ID |
0 |
|
|
Inter-TTI Distance |
1 |
|
|
Number of HARQ processes per component carrier |
Processes |
8 |
|
Maximum number of HARQ transmission |
4 |
|
|
Redundancy version coding sequence |
{0,0,1,2} for 64QAM and 256QAM |
|
|
Number of OFDM symbols for PDCCH per component carrier |
OFDM symbols |
1 |
|
Cross carrier scheduling |
Not configured |
|
|
Propagation condition |
Static propagation condition No external noise sources are applied |
|
|
|
dBm/15kHz |
-85 |
|
Antenna configuration |
2 layer CC |
2×2 or 2×4 |
|
4 layer CC |
4×4 |
|
|
Codebook subset restriction |
2 layer CC |
10 |
|
4 layer CC |
1000 |
|
|
Downlin power allocation |
2 layer CC |
|
|
4 layer CC |
|
|
|
Symbols for unused PRBs |
OP.1 TDD |
|
|
ACK/NACK feedback mode |
Separate ACK/NACK feedbacks with PUCCH format 3 on the MCG and SCG |
|
|
Time offset between MCG CC and SCG CC |
μs |
0 for UE under test supporting synchronous dual connectivity; 500 for UE under test supporting both asynchronous and synchrounous dual connectivity (Note 1) |
|
Note 1: Asynchronous and synchrous dual connectivity are defined in TS36.300 [11]. Note 2: If the UE supports both SCG bearer and Split bearer, the Split bearer is configured. |
||
at antenna port
= -3dB, 
= -3dB, σ = 0dB
= -6dB, 
= -6dB, σ = 3dBFor UE not supporting 256QAM, the TB success rate shall be higher than 85% when PDSCH are scheduled with FRC in Table 8.7.14-2 with the downlink physical channel setup according to Annex C.3.2.
For UE supporting 256QAM, the TB success rate shall be higher than 85% when PDSCH are scheduled with FRC in Table 8.7.14-3 with the downlink physical channel setup according to Annex C.3.2. For UE supporting 256QAM, the requirement with 64QAM is not applicable.
The TB success rate is defined as 100%*NDL_correct_rx/ (NDL_newtx + NDL_retx), where NDL_newtx is the number of newly transmitted DL transport blocks, NDL_retx is the number of retransmitted DL transport blocks, and NDL_correct_rx is the number of correctly received DL transport blocks. The TB success rate across CGs shall be sustained during at least 300 frames.
Table 8.7.14-2: Per-CC FRC for SDR test (TDD 64QAM)
|
MIMO layer |
Bandwidth |
Reference channel |
|
2 layer |
10 |
R.31-6 TDD |
|
15 |
R.31-5 TDD |
|
|
20 |
R.31-4 TDD |
|
|
4 layer |
10 |
R.31-7 TDD |
|
15 |
R.31-8 TDD |
|
|
20 |
R.31-9 TDD |
Table 8.7.14-3: Per-CC FRC for SDR test (TDD 256QAM)
|
MIMO layer |
Bandwidth |
Reference channel |
|
2 layer |
10 |
R.68-2 TDD |
|
15 |
R.68-1 TDD |
|
|
20 |
R.68 TDD |
|
|
4 layer |
10 |
R.68-5 TDD |
|
15 |
R.68-6 TDD |
|
|
20 |
R.68-7 TDD |
DC configuration, bandwidth combination and MIMO layer on each CC is determined by following procedure.
– Select one DC bandwidth combination among all supported DC configurations with bandwidth combination and MIMO layer on each CC that leads to largest equivalent aggregated bandwidth among all DC bandwidth combinations supported by UE. Equivalent aggregated bandwidth is defined as
where 
is number of CCs, 
and 
is MIMO layer and bandwidth of CC 
.
– When there are multiple sets of {DC configuration, bandwidth combination, MIMO layer} with same largest aggregated bandwidth, select one among sets with largest number of 4 layer CCs.