9.3.6 Multiflow HSDPA performance
25.1013GPPRelease 17TSUser Equipment (UE) radio transmission and reception (FDD)
9.3.6.1 Fading propagation conditions
The reporting accuracy of the channel quality indicator (CQI) under fading environments is determined by the BLER performance using the transport format indicated by the reported CQI median.
The specified requirements may be subject to further simulations to verify assumptions.
9.3.6.1.1 Minimum Requirement
For the parameters specified in Table 9.49E3, and using the the test set-up in Annex C.5.5, the requirements are specified in terms of maximum BLERs at particular reported CQIs when transmitting a fixed transport format given by the CQI median as shown in Table 9.49E4. The BLER at a particular reported CQI is obtained by associating a particular CQI reference measurement period with the HS-PDSCH subframe of the time reference cell overlapping with the end of this CQI reference measurement period and calculating the fraction of erroneous HS-PDSCH subframes.
Table 9.49E3: Test Parameters for CQI test in fading – Multiflow HSDPA
Parameter |
Unit |
Test 1 |
HS-PDSCH |
dB |
-3 |
|
dB |
Specified in Annex C.5.5 |
|
dBm/3.84 MHz |
-60 |
Number of additional interfering cell |
0 |
|
Phase reference |
– |
P-CPICH |
Maximum number of H-ARQ transmission |
– |
1 |
Number of HS-SCCH set to be monitored |
– |
1 |
CQI feedback cycle |
ms |
2 |
CQI repetition factor |
– |
1 |
HS-SCCH-1 signalling pattern |
– |
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. The HS-SCCH-1 shall be transmitted continuously with constant power. |
Propagation Channel |
Case 8 |
|
Note 1: Measurement power offset “Γ” is configured by RRC accordingly and as defined in [7] . Note 2: TF for HS-PDSCH is configured according to the reported CQI statistics. TF based on median CQI is used. Other physical channel parameters are configured according to the CQI mapping table described in TS25.214. Note 3: HS-PDSCH Ec/Ior is decreased according to reference power adjustment Δ described in TS 25.214. Note 4: For any given transport format the power of the HS-SCCH and HS-PDSCH shall be transmitted continuously with constant power. Note 5: The UE shall be configured in non-MIMO mode and use appropriate CQI tables according to TS 25.214. |
Table 9.49E4: Minimum requirement for CQI test in fading – Multiflow HSDPA
Reported CQI |
Maximum BLER |
Test 1 |
|
CQI median |
60% |
CQI median + 3 |
15% |