A.5.3 TDD/GSM Handover
25.1233GPPRelease 17Requirements for support of radio resource management (TDD)TS
A.5.3.1 Test Purpose and Environment
A.5.3.1.1 3.84 Mcps TDD option
The purpose of this test is to verify the requirement for the UTRA TDD to GSM handover delay reported in section 5.4.2.1.
The test parameters are given in Tables A.5.3.1, A.5.3.2 and A.5.3.3 below. In the measurement control information it is indicated to the UE that event-triggered reporting with Event 3C shall be used. The test consists of three successive time periods, with a time duration of T1, T2 and T3 respectively. At the start of time duration T1, the UE may not have any timing information of cell 2.
UTRAN shall send a HANDOVER FROM UTRAN COMMAND message with activation time "now" with one active cell, cell 2. The HANDOVER FROM UTRAN COMMAND message shall be sent to the UE during period T2. The starting point of T3 is defined as the end of the last TTI containing the HO command. In the GSM Handover command contained in this message, IE starting time shall not be included.
Cell 1 is a UTRA TDD cell and cell 2 is a GSM cell. The Beacon timeslot shall be transmitted in timeslot 0 for cell 1 and no second Beacon timeslot shall be provided for cell 1. The DL DPCH shall be transmitted in timeslot 1 and the UL DPCH shall be transmitted in timeslot 3.
Table A.5.3.1: 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.2.2 |
|
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 |
||
BSIC verification required |
Required |
||
Threshold other system |
dBm |
-80 |
Absolute GSM carrier RSSI threshold for Event 3C. |
Hysteresis |
dB |
0 |
|
Time to Trigger |
ms |
0 |
|
Filter coefficient |
0 |
||
Monitored cell list size |
12 TDD neighbours on Channel 1 6 GSM neighbours including ARFCN 1 |
Measurement control information is sent before the start of time period T1. |
|
Tidentify abort |
s |
5 |
As specified in section 8.1.2.5 |
Treconfirm abort |
s |
5 |
As specified in section 8.1.2.5 |
T1 |
s |
10 |
|
T2 |
s |
10 |
|
T3 |
s |
10 |
Table A.5.3.2: Cell 1 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 1 |
||||||||
DL timeslot number |
0 |
1 |
||||||||
T1 |
T2 |
T3 |
T1 |
T2 |
T3 |
|||||
UTRA RF Channel Number |
Channel 1 |
|||||||||
PCCPCH_Ec/Ior |
dB |
-3 |
n.a. |
|||||||
SCH_Ec/Ior |
dB |
-9 |
n.a. |
|||||||
SCH_toffset |
dB |
0 |
n.a. |
|||||||
DPCH_Ec/Ior |
dB |
n.a. |
Note 1 |
n.a. |
||||||
OCNS_Ec/Ior |
dB |
-3,12 |
Note 2 |
n.a. |
||||||
|
dB |
6 |
6 |
|||||||
PCCPCH RSCP |
dBm |
-68 |
n.a. |
|||||||
|
dBm/3,84 MHz |
-70 |
||||||||
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 . |
Table A.5.3.3: Cell 2 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 2 |
||||
T1 |
T2, T3 |
|||||
Absolute RF Channel Number |
ARFCN 1 |
|||||
RXLEV |
dBm |
-85 |
-75 |
A.5.3.1.2 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.5.3.4, A.5.3.5 and A.5.3.6 below. In the measurement control information it is indicated to the UE that event-triggered reporting with Event 3C shall be used. The test consists of three successive time periods, with a time duration of T1, T2 and T3 respectively. At the start of time duration T1, the UE may not have any timing information of cell 2.
UTRAN shall send a HANDOVER FROM UTRAN COMMAND message with activation time "now" with one active cell, cell 2. The HANDOVER FROM UTRAN COMMAND message shall be sent to the UE during period T2. The starting point of T3 is defined as the end of the last TTI containing the HO command. In the GSM Handover command contained in this message, the IE starting time shall not be included.
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.5.3.4: 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 |
||
BSIC verification required |
Required |
||
Threshold other system |
dBm |
-80 |
Absolute GSM carrier RSSI threshold for Event 3C. |
Hysteresis |
dB |
0 |
|
Time to Trigger |
ms |
0 |
|
Filter coefficient |
0 |
||
Monitored cell list size |
12 TDD neighbours on Channel 1 6 GSM neighbours including ARFCN 1 |
Measurement control information is sent before the start of time period T1. |
|
Tidentify abort |
s |
5 |
As specified in section 8.1A.2.5 |
Treconfirm abort |
s |
5 |
As specified in section 8.1A.2.5 |
T1 |
s |
10 |
|
T2 |
s |
10 |
|
T3 |
s |
10 |
Table A.5.3.5: Cell 1 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 1 |
||||||||
DL timeslot number |
0 |
DwPTS |
||||||||
T1 |
T2 |
T3 |
T1 |
T2 |
T3 |
|||||
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.5.3.6: Cell 2 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 2 |
||||
T1 |
T2, T3 |
|||||
Absolute RF Channel Number |
ARFCN 1 |
|||||
RXLEV |
dBm |
-85 |
-75 |
A.5.3.1.3 7.68 Mcps TDD option
The purpose of this test is to verify the requirement for the UTRA TDD to GSM handover delay reported in section 5.4.2.1.
The test parameters are given in Tables A.5.3.7, A.5.3.8 and A.5.3.9 below. In the measurement control information it is indicated to the UE that event-triggered reporting with Event 3C shall be used. The test consists of three successive time periods, with a time duration of T1, T2 and T3 respectively. At the start of time duration T1, the UE may not have any timing information of cell 2.
UTRAN shall send a HANDOVER FROM UTRAN COMMAND message with activation time "now" with one active cell, cell 2. The HANDOVER FROM UTRAN COMMAND message shall be sent to the UE during period T2. The starting point of T3 is defined as the end of the last TTI containing the HO command. In the GSM Handover command contained in this message, IE starting time shall not be included.
Cell 1 is a UTRA TDD cell and cell 2 is a GSM cell. The Beacon timeslot shall be transmitted in timeslot 0 for cell 1 and no second Beacon timeslot shall be provided for cell 1. The DL DPCH shall be transmitted in timeslot 1 and the UL DPCH shall be transmitted in timeslot 3.
Table A.5.3.7: 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.2.2 |
|
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 |
||
BSIC verification required |
Required |
||
Threshold other system |
dBm |
-80 |
Absolute GSM carrier RSSI threshold for Event 3C. |
Hysteresis |
dB |
0 |
|
Time to Trigger |
ms |
0 |
|
Filter coefficient |
0 |
||
Monitored cell list size |
12 TDD neighbours on Channel 1 6 GSM neighbours including ARFCN 1 |
Measurement control information is sent before the start of time period T1. |
|
Tidentify abort |
s |
5 |
As specified in section 8.1.2.5 |
Treconfirm abort |
s |
5 |
As specified in section 8.1.2.5 |
T1 |
s |
10 |
|
T2 |
s |
10 |
|
T3 |
s |
10 |
Table A.5.3.8: Cell 1 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 1 |
||||||||
DL timeslot number |
0 |
1 |
||||||||
T1 |
T2 |
T3 |
T1 |
T2 |
T3 |
|||||
UTRA RF Channel Number |
Channel 1 |
|||||||||
PCCPCH_Ec/Ior |
dB |
-3 |
n.a. |
|||||||
SCH_Ec/Ior |
dB |
-9 |
n.a. |
|||||||
SCH_toffset |
dB |
0 |
n.a. |
|||||||
DPCH_Ec/Ior |
dB |
n.a. |
Note 1 |
n.a. |
||||||
OCNS_Ec/Ior |
dB |
-3,12 |
Note 2 |
n.a. |
||||||
|
dB |
6 |
6 |
|||||||
PCCPCH RSCP |
dBm |
-68 |
n.a. |
|||||||
|
dBm/7,68 MHz |
-70 |
||||||||
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 . |
Table A.5.3.9: Cell 2 specific test parameters for TDD/GSM handover
Parameter |
Unit |
Cell 2 |
||||
T1 |
T2, T3 |
|||||
Absolute RF Channel Number |
ARFCN 1 |
|||||
RXLEV |
dBm |
-85 |
-75 |
A.5.3.2 Test Requirements
A.5.3.2.1 3.84 Mcps TDD option
The UE shall begin to send access bursts on the new DCCH of the target cell less than 90 ms from the beginning of time period T3.
The rate of correct handovers observed during repeated tests shall be at least 90%.
A.5.3.2.2 1.28 Mcps TDD option
The UE shall begin to send access bursts on the new DCCH of the target cell less than 90 ms from the beginning of time period T3.
The rate of correct handovers observed during repeated tests shall be at least 90%.
A.5.3.2.3 7.68 Mcps TDD option
The UE shall begin to send access bursts on the new DCCH of the target cell less than 90 ms from the beginning of time period T3.
The rate of correct handovers observed during repeated tests shall be at least 90%.