A.5.9 Enhanced Serving HS-DSCH cell change
25.1333GPPRelease 17Requirements for support of radio resource management (FDD)TS
A.5.9.1 Test Purpose and Environment
This test case is only applicable to UEs which support enhanced HS-DSCH serving cell change.
The purpose of this test is to verify the requirement for the delay when performing the enhanced serving HS-DSCH cell change in CELL_DCH state specified in section 5.11.
The test parameters are given in Table A.5.15 and A.5.16 below. The test consists of 4 successive time periods, with a time duration of T1, T2, T3 and T4 respectively. At the start of time duration T1 the UE has cell 1 and cell 2 in the active set and cell 1 as the serving HS-DSCH cell. Target cell preconfiguration is provided for cell 2 in the active set update. The target cell preconfiguration shall not contain the optional IE “Activation time offset”. After sending event 1D during time period T2, the UE should start to monitor HS-SCCH-1 from cell 2. A single HS-SCCH order implying serving cell change starts to be transmitted from cell 2 during T3. By the start of T4, the single HS-SCCH order implying serving cell change completes transmission, and within the time specified in section 5.11 the UE shall also be monitoring the HS-SCCH-2 on target cell 2.
Data shall be transmitted continuously to the UE on the HS-DSCH channel of cell 1 during T1 and T2, and on the HS-DSCH channel of cell2 during T4.
Table A.5.15: General test parameters for enhanced serving HS-DSCH cell change
|
Parameter |
Unit |
Value |
Comment |
|
|
F-DPCH slot format |
0 |
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|
Power Control |
On |
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|
Target quality value on F-DPCH |
TPC BER |
0.05 |
5% |
|
|
HSDPA parameters |
Fixed Reference Channel Definition H-Set 1, with QPSK modulation only |
As specified in TS 25.101 section A.7.1.1 |
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|
Initial conditions |
Active cells |
Cell 1 and Cell 2 |
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|
Serving HS-DSCH cell |
Cell 1 |
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|
Final condition |
Active cell |
Cell 1 and Cell 2 |
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|
Serving HS-DSCH cell |
Cell 2 |
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|
Hysteresis |
dB |
0 |
||
|
Time to Trigger |
ms |
0 |
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|
Filter coefficient |
0 |
|||
|
T1 |
s |
5 |
||
|
T2 |
s |
1 |
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|
T3 |
ms |
100 |
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|
T4 |
ms |
100 |
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Table A.5.16: Cell specific test parameters for enhanced serving HS-DSCH cell change
|
Parameter |
Unit |
Cell 1 |
Cell 2 |
||||||
|
T1 |
T2 |
T3 |
T4 |
T1 |
T2 |
T3 |
T4 |
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|
UTRA RF Channel Number |
Channel 1 |
Channel 1 |
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|
CPICH_Ec/Ior |
dB |
-10 |
-10 |
||||||
|
PCCPCH_Ec/Ior |
dB |
-12 |
-12 |
||||||
|
SCH_Ec/Ior |
dB |
-12 |
-12 |
||||||
|
PICH_Ec/Ior |
dB |
-15 |
-15 |
||||||
|
F-DPCH_Ec/Ior |
dB |
Note 1 |
Note 1 |
Note 1 |
Note 1 |
Note 1 |
Note 1 |
Note 1 |
Note 1 |
|
HS-PDSCH_Ec/Ior |
dB |
-10 |
-inf |
-inf |
-10 |
||||
|
HS-SCCH-1_ Ec/Ior |
dB |
-13 |
-inf |
-inf |
-13 |
-inf |
|||
|
HS-SCCH-2 Ec/Ior |
dB |
-inf |
-inf |
-13 |
|||||
|
OCNS |
Note 2 |
Note 2 |
Note 2 |
Note 2 |
Note 2 |
Note 2 |
Note 2 |
Note 2 |
|
|
|
dB |
3.64 |
1.14 |
1.14 |
3.64 |
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|
|
dBm/ |
-70 |
|||||||
|
CPICH_Ec/Io |
dB |
-13 |
-15.5 |
-15.5 |
-13 |
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|
Propagation Condition |
AWGN |
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|
Relative delay of paths received from cell 2 with respect to cell 1 |
Chips |
{-148 … 148} Note 3 |
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Note 1: The F-DPCH level is controlled by the power control loop Note 2: The power of the OCNS channel that is added shall make the total power from the cell to be equal to Ior . Note 3: The relative delay of the path from cell 2 with respect to cell 1 shall always be within ±148 chip. |
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A.5.9.1.1 Test procedure
1) The test is started at the beginning of T1.
2) During time period T2 an Event 1D triggered measurement report shall be sent by the UE.
3) During time period T3 UTRAN shall send an HS-SCCH order on HS-SCCH-1from cell 2 implying enhanced serving HS-DSCH from cell 1 to cell 2. The HS-SCCH order message shall be sent to the UE so that the end of the TTI containing the HS-SCCH order corresponds to the beginning of T4.
4) At the start of T4, UTRAN shall transmit data to the UE using HS-SCCH-2 and HS-PDSCH on cell 2. Any ACK/NACK received from the UE indicates that the UE is monitoring HS-SCCH-2
A.5.9.2 Test Requirements
The UE shall start to receive the first HS-SCCH message on HS-SCCH-2 from cell 2 within no more than 40 ms from the beginning of time period T4 and transmit the ACK or NACK which corresponds to the HS-SCCH message.
Note: Since HS-SCCH-2 on cell 2 is the only HS-SCCH which is being transmitted from the start of T4, either ACK or NACK transmission from the UE after the start of T4 implies that the enhanced serving cell change has been completed.
The rate of correct serving cell changes observed during repeated tests shall be at least 90%.