A.5.3e TDD/GSM Handover: Non-synchronization target cell
25.1233GPPRelease 17Requirements for support of radio resource management (TDD)TS
A.5.3e.1 Test Purpose and Environment
A.5.3e.1.1 3.84 Mcps TDD option
A.5.3e.1.2 1.28Mcps TDD option
The purpose of this test is to verify the requirement for the UTRA TDD to GSM handover delay reported in section 5.3.2.
The test parameters are given in Tables A.5.3e.4, A.5.3e.5 and A.5.3e.6 below. The test consists of two successive time periods, with a time duration of T1 and T2 respectively. At the start of time duration T1, the UE may not have any timing information of cell 2.
Starting T2, cell 2 becomes detectable and the UE receives a RRC handover command from the network. The start of T2 is the instant when the last TTI containing the RRC message implying handover is sent to the UE.
Cell 1 is a UTRA TDD cell and cell 2 is a GSM cell.
The DL DPCH shall be transmitted in timeslot 4 and the UL DPCH shall be transmitted in timeslot 2.
Table A.5.3e.1.2-1: General test parameters for TDD/GSM handover
|
Parameter |
Unit |
Value |
Comment |
|
DCH parameters |
DL Reference Measurement Channel 12.2 kbps |
As specified in TS 25.102 section A |
|
|
Power Control |
On |
||
|
Target quality value on DTCH |
BLER |
0.01 |
|
|
Initial conditions |
Active cell |
Cell 1 |
UTRA TDD cell |
|
Neighbour cell |
Cell 2 |
GSM cell |
|
|
Final condition |
Active cell |
Cell 2 |
GSM cell |
|
Inter-RAT measurement quantity |
GSM carrier RSSI |
||
|
T1 |
s |
10 |
|
|
T2 |
s |
1 |
Table A.5.3e.1.2-2: Cell 1 specific test parameters for TDD/GSM handover
|
Parameter |
Unit |
Cell 1 |
|||
|
DL timeslot number |
0 |
DwPTS |
|||
|
T1 |
T2 |
T1 |
T2 |
||
|
UTRA RF Channel Number (NOTE) |
Channel 1 |
||||
|
PCCPCH_Ec/Ior |
dB |
-3 |
|||
|
DwPCH_Ec/Ior |
dB |
0 |
|||
|
OCNS_Ec/Ior |
dB |
-3 |
|||
|
|
dB |
5 |
5 |
||
|
|
dBm/1.28 MHz |
-70 |
|||
|
Propagation Condition |
AWGN |
||||
|
NOTE: In the case of multi-frequency network,the UTRA RF Channel Number can be set for the primary frequency in this test. |
|||||
Table A.5.3e.1.2-3: Cell 2 specific test parameters for TDD/GSM handover
|
Parameter |
Unit |
Cell 2 |
||||
|
T1 |
T2 |
|||||
|
Absolute RF Channel Number |
ARFCN 1 |
|||||
|
RXLEV |
dBm |
-Infinity |
-75 |
|||
A.5.3e.1.3 7.68 Mcps TDD option
A.5.3e.2 Test Requirements
A.5.3e.2.1 3.84 Mcps TDD option
A.5.3e.2.2 1.28 Mcps TDD option
The UE shall begin to send access bursts on the new DCCH of the target cell less than 200 ms from the beginning of time period T3.
The rate of correct handovers observed during repeated tests shall be at least 90%.
NOTE: The test requirement in this test case is expressed as:
THandover delay = 190 ms + Toffset + TUL
Toffset: Equal to 4.65 ms, GSM timing uncertainty between the time from when the UE is ready to transmit until the start of the next timeslot in GSM 26 multiframe structure
TUL: Equal to 4.65 ms, the time the UE has to wait in case the next timeslot is an idle frame or a SACCH frame.
This gives a total of 199.3 ms, allow 200 ms in the test case.
A.5.3e.2.3 7.68 Mcps TDD option
(Void)