A.5.11 Interfrequency System information acquisition for CSG cell
25.1333GPPRelease 17Requirements for support of radio resource management (FDD)TS
A.5.11.1 Test Purpose and Environment
The purpose of this test is to verify the requirement for interfrequency CSG SI acquisition in section 5.13.2. The test parameters are given in Table A.5.19 and A.5.20 below.
The test consists of three successive time periods, with a time duration T1, T2 and T3. The test parameters are given in tables A.5.19 and A.5.20 below. In the measurement control information it is indicated to the UE that event-triggered reporting with Event 2C shall be used. The CPICH Ec/Io of the best cell on the unused frequency shall be reported together with Event 2C reporting. At the start of time duration T1, the UE may not have any timing information of cell 2.
During T2, the UE shall transmit a measurement report with event 2C, and UTRAN shall respond with a measurement control message which reconfigures interfrequency measurements with the Inter-frequency SI Acquisition IE containing the PSC of cell 2.The start of T3 is defined as the end of the last TTI containing this measurement control message.
Table A.5.19: General test parameters for Handover to inter-frequency cell
|
Parameter |
Unit |
Value |
Comment |
|
|
DCH parameters |
DL and UL Reference Measurement Channel 12.2 kbps |
As specified in TS 25.101 section A.3.1 and A.2.1 |
||
|
Power Control |
On |
|||
|
Target quality value on DTCH |
BLER |
0.001 |
||
|
Compressed mode |
A.22 set 1 |
As specified in TS 25.101 section A.5. |
||
|
Initial conditions |
Active cell |
Cell 1 |
||
|
Neighbour cell |
Cell 2 |
|||
|
Final conditions |
Active cell |
Cell 1 |
Handover to cell 2 is not requested |
|
|
Threshold non used frequency |
dB |
-18 |
Absolute Ec/I0 threshold for event 2C |
|
|
Hysteresis |
dB |
0 |
||
|
W non-used frequency |
1 |
Applicable for event 2C |
||
|
Time to Trigger |
Ms |
0 |
||
|
Filter coefficient |
0 |
|||
|
SIB3_REP |
Frames |
32 |
Applicable for cell 2 SIB3 scheduling |
|
|
SIB3 SEG_COUNT |
1 |
Applicable for cell 2 SIB3 scheduling |
||
|
CSG id (of cell 2) |
Set to any non-empty value |
|||
|
CSG Indicator (of cell 2) |
Set to TRUE |
|||
|
UE whitelist |
Empty |
|||
|
Monitored cell list size |
24 on channel 1 16 on channel 2 |
Measurement control information is sent before the compressed mode pattern starts. |
||
|
T1 |
S |
5 |
||
|
T2 |
S |
≤5 |
||
|
T3 |
S |
5 |
||
Table A.5.20: Cell Specific parameters for Handover to inter-frequency cell
|
Parameter |
Unit |
Cell 1 |
Cell 2 |
|||||
|
T1 |
T2 |
T3 |
T1 |
T2 |
T3 |
|||
|
UTRA RF Channel Number |
Channel 1 |
Channel 2 |
||||||
|
CPICH_Ec/Ior |
dB |
-10 |
-10 |
|||||
|
PCCPCH_Ec/Ior |
dB |
-12 |
-12 |
|||||
|
SCH_Ec/Ior |
dB |
-12 |
-12 |
|||||
|
PICH_Ec/Ior |
dB |
-15 |
-15 |
|||||
|
DPCH_Ec/Ior |
dB |
Note 1 |
N/A |
|||||
|
OCNS |
Note 2 |
-0.941 |
||||||
|
|
dB |
0 |
-Infinity |
-1.8 |
-1.8 |
|||
|
|
dBm/3,84 MHz |
-70 |
||||||
|
CPICH_Ec/Io |
dB |
-13 |
-Infinity |
-14 |
-14 |
|||
|
Propagation Condition |
AWGN |
|||||||
|
NOTE 1: The 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 . |
||||||||
A.5.11.2 Test Requirements
The UE shall transmit a measurement report containing the cell identity, CSG identity of cell 2 and membership indication set to FALSE within [1.96] seconds from the start of T3.
Test requirement = RRC Procedure delay + TCSG-SI-Report
= 50+ [630]+40*32 from the start of T3
= [1.96] seconds.
The UE shall not send event triggered measurement reports, as long as the reporting criteria are not fulfilled..
The rate of correct events observed during repeated tests shall be at least 90%.
NOTE: The actual overall delays measured in the test may be up to 2 x TTIUL DCCH higher than the measurement reporting delays above because of TTI insertion uncertainty of the measurement report in the UL DCCH.
The measured quality on the DTCH of the UE downlink measured from the start of T3 until 1.96 seconds after the start of T3 using loopback shall not exceed BLER= 0.612
a) NOTE: The test BLER is defined from the requirements as follows:
b) 600ms of downlink interruption and 600ms of uplink interruption may occur = 30 DTCH TTI
c) Due to loopback delay (up to 10 TTI), this means that 30 + 30 = 60 TTI loopback throughput may be lost due to gaps in uplink and downlink
d) There are 98 TTI in the test interval (1.96 seconds)
e) The remaining 98-60 = 38 TTI should have a BLER not exceeding 0.001+30% = 0.0013
Overall maximum allowed BLER is (38/98)*0.0013 + (60/98)*1 = 0.612