9.3.7 MIMO Performance with four transmit antennas
25.1013GPPRelease 17TSUser Equipment (UE) radio transmission and reception (FDD)
9.3.7.1 Four Streams Static Orthogonal Conditions
The minimum performance requirements of channel quality indicator (CQI) reporting under MIMO with four transmit antennas and four stream conditions are defined based on a Type A reporting fraction of 100%, i.e. the parameters N_cqi_typeA and M_cqi (see [8]) are assumed to be both set to 1. The propagation conditions assumed for minimum performance requirements of CQI reporting are defined in subclause B.2.7.
The precoding matrix used in the transmitter shall be one randomly picked but fixed precoding matrix 
out of the set defined in Annex B.2.7.
9.3.7.1.1 Minimum Requirement – UE HS-DSCH categories 37 and 38
With a serving HS-DSCH cell and secondary serving HS-DSCH cell(s) configured, using the parameters specified in Table 9.49E5, and using the downlink physical channels specified in C.12F, the reported CQI value, for each of the HARQ process, and cells shall be in the range of [+/-2] of the reported stream specific CQI median more than 90% of the time. The requirement is applicable for each cell and for each HARQ process individually, that is the median reported CQI, as well as corresponding BLERs, are to be separately determined for each cell and HARQ process, and independently verified to fulfil the requirement. The HARQ proceess and cell-specific CQI median shall be determined over all four transport block reports.
For each HARQ process and cells, if the HS-PDSCH BLER averaged over the streams associated to the same HARQ-process identifier, using the transport format indicated by the HARQ process and cell-specific CQI median is less than or equal to [0.1], the BLER using the transport format indicated by the HARQ process and cell-specific CQI median [+ 2] shall be greater than [0.1]. For each of the HARQ process and cells, if the HS-PDSCH BLER using the transport format indicated by the stream and cell-specific CQI median is greater than [0.1], the BLER using transport format indicated by the HARQ-process and cell-specific CQI median [-1] shall be less than or equal to [0.1].
Table 9.49E5: Test Parameters for CQI test for MIMO with four transmit antennas with four streams static orthogonal conditions
|
Parameter |
Unit |
Test 1 |
Test 2 |
|
HS-PDSCH |
dB |
-2.3 |
-2.3 |
|
|
dB |
13 |
18 |
|
|
dB |
13 |
18 |
|
|
dBm/3.84 MHz |
-60 |
-60 |
|
Phase reference |
– |
P-CPICH/S-CPICH (Table C.12F) |
P-CPICH/S-CPICH (Table C.12F) |
|
HS-SCCH_1 |
dB |
-17.4 (without STTD) |
-17.4 (without STTD) |
|
DPCH |
dB |
-10 (without STTD) |
-10 (without STTD) |
|
Precoding weight set restriction |
– |
Enabled |
Enabled |
|
Maximum number of H-ARQ transmission |
– |
1 |
1 |
|
Number of HS-SCCH set to be monitored |
– |
1 |
1 |
|
CQI feedback cycle |
ms |
2 |
2 |
|
CQI repetition factor |
– |
1 |
1 |
|
PCI/CQI reporting Error Rate |
% |
0 |
0 |
|
HS-SCCH-1 signalling pattern |
– |
To incorporate inter-TTI=3 the six sub-frame HS-SCCH-1 signalling pattern shall be “…XOOXOO…”, where “X” indicates TTI in which the HS-SCCH-1 uses the identity of the UE under test, and “O” indicates TTI in which the HS-SCCH-1 uses a different UE identity. |
To incorporate inter-TTI=3 the six sub-frame HS-SCCH-1 signalling pattern shall be “…XOOXOO…”, where “X” indicates TTI in which the HS-SCCH-1 uses the identity of the UE under test, and “O” indicates TTI in which the HS-SCCH-1 uses a different UE identity. |
|
Propagation Channel |
Four branch MIMO four stream static orthogonal conditions, Annex B.2.7.1 |
Four branch MIMO four stream static orthogonal conditions, Annex B.2.7.1 |
|
|
Note 1: Measurement power offset “Γ” is configured by RRC accordingly and as defined in [7]. Note 2: HS-PDSCH Ec/Ior is decreased according to reference power adjustment Δ described in TS 25.214. Note 3: For any given transport format the power of the HS-SCCH and HS-PDSCH shall be transmitted continuously with constant power. |
|||
