8.3.9 Inter system cell reselection from UTRAN
34.123-13GPPPart 1: Protocol conformance specificationRelease 15TSUser Equipment (UE) conformance specification
If not specified differently in the individual tests of this group, the Contents of System Information Block type 12 (FDD) shall be as specified in the following table:
|
– FACH measurement occasion info |
Not Present |
|
– Measurement control system information |
|
|
– Use of HCS |
Not used |
|
– Cell selection and reselection quality measure |
CPICH RSCP |
|
– Intra-frequency measurement system information |
|
|
– Intra-frequency measurement identity |
Not Present Absence of this IE is equivalent to default value 1 |
|
– Intra-frequency cell info list |
|
|
– CHOICE intra-frequency cell removal removeNoIntraFreqCells: |
NULL |
|
– New intra-frequency cells |
|
|
– Intra-frequency cell id |
2 |
|
– Cell info |
|
|
– Cell individual offset |
Not present Absence of this IE is equivalent to default value 0dB |
|
– Reference time difference to cell |
Not present |
|
– Read SFN indicator |
TRUE |
|
– CHOICE mode |
FDD |
|
– Primary CPICH info |
|
|
– Primary scrambling code |
Refer to clause titled "Default settings for cell No.2 (FDD)" in clause 6.1.4 of 3GPP TS 34.108. |
|
– Primary CPICH TX power |
Not Present |
|
– TX Diversity indicator |
FALSE |
|
– Cell Selection and Re-selection info |
Not present For neighbouring cell, if HCS is not used and all the parameters in cell selection and re-selection info are Default value, this IE is absent. |
|
– Intra-frequency cell id |
3 |
|
– Cell info |
Same content as specified for Intra-frequency cell id=2 with the exception that value for Primary scrambling code shall be according to clause titled "Default settings for cell No.3 (FDD)" in clause 6.1.4 of 3GPP TS 34.108. |
|
– Cells for measurement |
Not Present |
|
– Intra-frequency measurement quantity |
|
|
– Filter coefficient |
Not present Absence of this IE is equivalent to the default value 0 |
|
– CHOICE mode |
FDD |
|
– Measurement quantity |
CPICH RSCP |
|
– Intra-frequency reporting quantity for RACH Reporting |
Not Present |
|
– Maximum number of reported cells on RACH |
Not Present |
|
– Reporting information for state CELL_DCH |
|
|
– Intra-frequency reporting quantity |
|
|
– Reporting quantities for active set cells |
|
|
– Cell synchronization information reporting indicator |
FALSE |
|
– Cell identity reporting indicator |
TRUE |
|
– CHOICE mode |
FDD |
|
– CPICH Ec/N0 reporting indicator |
FALSE |
|
– CPICH RSCP reporting indicator |
TRUE |
|
– Pathloss reporting indicator |
FALSE |
|
– Reporting quantities for monitored set cells |
|
|
– Cell synchronization information reporting indicator |
TRUE |
|
– Cell identity reporting indicator |
TRUE |
|
– CHOICE mode |
FDD |
|
– CPICH Ec/N0 reporting indicator |
FALSE |
|
– CPICH RSCP reporting indicator |
TRUE |
|
– Pathloss reporting indicator |
FALSE |
|
– Reporting quantities for detected set cells |
Not Present |
|
– Measurement reporting mode |
|
|
– Measurement Report Transfer Mode |
Acknowledged mode RLC |
|
– Periodic Reporting/Event Trigger Reporting Mode |
Event trigger |
|
– CHOICE report criteria |
Intra-frequency measurement reporting criteria |
|
– Intra-frequency measurement reporting criteria |
|
|
– Parameters required for each event |
3 kinds |
|
– Intra-frequency event identity |
1a |
|
– Triggering condition 1 |
Not Present |
|
– Triggering condition 2 |
Monitored set cells |
|
– Reporting Range Constant |
10 (5 dB) |
|
– Cells forbidden to affect Reporting range |
Not Present |
|
– W |
10 (1.0) |
|
– Hysteresis |
0 (0.0) |
|
– Threshold Used Frequency |
Not Present |
|
– Reporting deactivation threshold |
2 |
|
– Replacement activation threshold |
Not Present |
|
– Time to trigger |
640 |
|
– Amount of reporting |
4 |
|
– Reporting interval |
4 000 |
|
– Reporting cell status |
|
|
– CHOICE reported cell |
Report cell within active set and/or monitored set cells on used frequency |
|
– Maximum number of reported cells |
3 |
|
– Intra-frequency event identity |
1b |
|
– Triggering condition 1 |
Active set cells |
|
– Triggering condition 2 |
Not Present |
|
– Reporting Range Constant |
10 (5 dB) |
|
– Cells forbidden to affect Reporting range |
Not Present |
|
– W |
10 (1.0) |
|
– Hysteresis |
0 (0.0) |
|
– Threshold Used Frequency |
Not Present |
|
– Reporting deactivation threshold |
Not Present |
|
– Replacement activation threshold |
Not Present |
|
– Time to trigger |
640 |
|
– Amount of reporting |
Not Present |
|
– Reporting interval |
Not Present |
|
– Reporting cell status |
|
|
– CHOICE reported cell |
Report cell within active set and/or monitored set cells on used frequency |
|
– Maximum number of reported cells |
3 |
|
– Intra-frequency event identity |
1c |
|
– Triggering condition 1 |
Not Present |
|
– Triggering condition 2 |
Not Present |
|
– Reporting Range Constant |
Not Present |
|
– Cells forbidden to affect Reporting range |
Not Present |
|
– W |
Not Present |
|
– Hysteresis |
0 (0.0) |
|
– Threshold Used Frequency |
Not Present |
|
– Reporting deactivation threshold |
Not Present |
|
– Replacement activation threshold |
3 |
|
– Time to trigger |
640 |
|
– Amount of reporting |
4 |
|
– Reporting interval |
4 000 |
|
– Reporting cell status |
|
|
– CHOICE reported cell |
Report cell within active set and/or monitored set cells on used frequency |
|
– Maximum number of reported cells |
3 |
|
– Inter-frequency measurement system information |
|
|
– Inter-frequency cell info list |
|
|
– CHOICE Inter-frequency cell removal |
Not present (This IE shall be ignored by the UE for SIB11) |
|
– New inter-frequency cells |
|
|
– Inter frequency cell id |
4 |
|
– Frequency info |
|
|
– CHOICE mode |
FDD |
|
– UARFCN uplink(Nu) |
Not present Absence of this IE is equivalent to apply the default duplex distance defined for the operating frequency according to 3GPP TS 25.101 [11] |
|
– UARFCN downlink(Nd) |
Reference to table 6.1.2 of 3GPP TS 34.108 for Cell 4 |
|
– Cell info |
|
|
– Cell individual offset |
Not present Absence of this IE is equivalent to default value 0 dB |
|
– Reference time difference to cell |
Not present |
|
– Read SFN indicator |
TRUE |
|
– CHOICE mode |
FDD |
|
– Primary CPICH info |
|
|
– Primary scrambling code |
Refer to clause titled "Default settings for cell No.4 (FDD)" in clause 6.1.4 of 3GPP TS 34.108. |
|
– Primary CPICH Tx power |
Not present |
|
– TX Diversity Indicator |
FALSE |
|
– Cell Selection and Re-selection Info |
Not present (same values as for serving cell applies) |
|
– Inter frequency cell id |
5 |
|
– Frequency info |
|
|
– CHOICE mode |
FDD |
|
– UARFCN uplink(Nu) |
Not present. Absence of this IE is equivalent to apply the default duplex distance defined for the operating frequency according to 3GPP TS 25.101 [11] |
|
– UARFCN downlink(Nd) |
Reference to table 6.1.2 of 3GPP TS 34.108 for Cell 5 |
|
– Cell info |
Same content as specified for Inter-frequency cell id=4 with the exception that value for Primary scrambling code shall be according to clause titled "Default settings for cell No.5 (FDD)" in clause 6.1.4 of 3GPP TS 34.108. |
|
– Inter frequency cell id |
6 |
|
– Frequency info |
|
|
– CHOICE mode |
FDD |
|
– UARFCN uplink(Nu) |
Not present Absence of this IE is equivalent to apply the default duplex distance defined for the operating frequency according to 3GPP TS 25.101 [11] |
|
– UARFCN downlink(Nd) |
Reference to table 6.1.2 of 3GPP TS 34.108 for Cell 6 |
|
– Cell info |
Same content as specified for Inter-frequency cell id=4 with the exception that value for Primary scrambling code shall be according to clause titled "Default settings for cell No.6 (FDD)" in clause 6.1.4 |
|
– Cell for measurement |
Not present |
|
– Inter-RAT measurement system information |
Not Present |
|
– Inter-RAT measurement system information |
|
|
– Inter-RAT cell info list |
|
|
– CHOICE Inter-RAT cell removal |
Not Present |
|
– New inter-RAT cells |
|
|
– Inter-RAT cell id |
9 |
|
– CHOICE Radio Access Technology |
GSM |
|
– GSM |
|
|
– Cell individual offset |
0 (0 dB) |
|
– Cell selection and re-selection info |
Not Present |
|
– BSIC |
|
|
– Base transceiver Station Identity Code (BSIC) |
Reference to table 6.1.10 of 3GPP TS 34.108. for Cell 9 |
|
– Band indicator |
According to PICS/PIXIT |
|
– BCCH ARFCN |
Reference to table 6.1.10 of 3GPP TS 34.108. for Cell 9 |
|
– Inter-RAT cell id |
10 |
|
– CHOICE Radio Access Technology |
GSM |
|
– GSM |
|
|
– Cell individual offset |
0 (0 dB) |
|
– Cell selection and re-selection info |
Not Present |
|
– BSIC |
|
|
– Base transceiver Station Identity Code (BSIC) |
Reference to table 6.1.10 for Cell 10 |
|
– Band indicator |
According to PICS/PIXITs |
|
– BCCH ARFCN |
Reference to table 6.1.10 of 3GPP TS 34.108. for Cell 10 |
|
– Cell for measurement |
Not present |
If not specified differently in the individual tests of this group, the Contents of System Information Block type 12 (1.28Mcps TDD) shall be as specified in the following table:
|
– FACH measurement occasion info |
Not Present |
|
– Measurement control system information |
|
|
– Use of HCS |
Not used |
|
– Cell selection and reselection quality measureCell |
CPICH RSCP |
|
– Intra-frequency measurement system information |
|
|
– Intra-frequency measurement identity |
Not Present Absence of this IE is equivalent to default value 1 |
|
– Intra-frequency cell info list |
|
|
– CHOICE intra-frequency cell removal |
Not present (This IE shall be ignored by the UE for SIB11) |
|
– New intra-frequency cells |
|
|
– Intra-frequency cell id |
2 |
|
– Cell info |
|
|
– Cell individual offset |
Not present Absence of this IE is equivalent to default value 0dB |
|
– Reference time difference to cell |
Not Present |
|
– Read SFN Indicator |
FALSE |
|
– CHOICE mode |
TDD |
|
– Primary CCPCH info |
|
|
– Cell parameters ID |
Reference clause 6.1.4 of 3GPP TS 34.108 Default settings for cell |
|
– Primary CCPCH TX power |
Not Present |
|
– Timeslot list |
Not Present |
|
– CHOICE TDD option |
|
|
– 1.28 Mcps TDD |
|
|
– Timeslot number |
Not Present |
|
– Cell Selection and Re-selection info |
Not Present (The IE shall be absent as this is the serving cell) |
|
– Intra-frequency cell id |
3 |
|
– Cell info |
Same content as specified for intra-frequency cell id=2 with the exception that value for Cell Parameters ID shall be according to clause titled “Default settings for cell No.3(TDD)” in clause 6.1.4 of 3GPP TS 34.108 |
|
– Cell for measurement |
Not Present |
|
– Intra-frequency measurement quantity |
|
|
– Filter coefficient |
Not present Absence of this IE is equivalent to the default value 0 |
|
– CHOICE mode |
TDD |
|
– Measurement quantity list |
|
|
– Measurement quantity |
P-CCPCH RSCP |
|
– Intra-frequency reporting quantity for RACH Reporting |
Not Present |
|
– Maximum number of reported cells on RACH |
Not Present |
|
– Reporting information for state CELL_DCH |
|
|
– Intra-frequency reporting quantity |
|
|
– Reporting quantities for active set cells |
|
|
– Cell synchronization information reporting indicator |
TRUE |
|
– Cell identity reporting indicator |
TRUE |
|
– CHOICE mode |
TDD |
|
– Timeslot ISCP reporting indicator |
FALSE |
|
– Proposed TSGN reporting required |
FALSE |
|
– P-CCPCH RSCP reporting indicator |
TRUE |
|
– Pathloss reporting indicator |
FALSE |
|
– Reporting quantities for monitored set cells |
|
|
– Cell synchronization information reporting indicator |
FALSE |
|
– Cell identity reporting indicator |
TRUE |
|
– CHOICE mode |
TDD |
|
– Timeslot ISCP reporting indicator |
FALSE |
|
– Proposed TSGN reporting required |
FALSE |
|
– P-CCPCH RSCP reporting indicator |
TRUE |
|
– Pathloss reporting indicator |
FALSE |
|
– Reporting quantities for detected set cells |
Not Present |
|
– Measurement reporting mode |
|
|
– Measurement Report Transfer Mode |
Acknowledged mode RLC |
|
– Periodical Reporting / Event Trigger Reporting Mode |
Event trigger |
|
-CHOICE report criteria |
|
|
– Intra-frequency measurement reporting criteria |
|
|
– Parameters required for each event |
|
|
– Intra-frequency event identity |
1g |
|
– Triggering condition1 |
Not Present |
|
– Triggering condition2 |
Not Present |
|
– Reporting Range Constant |
Not Present |
|
– cells forbidden to affect reporting range |
Not Present |
|
– W(optional in case of 1a,1b) |
Not Present |
|
– Hysteresis |
0.0 |
|
– Threshold used frequency |
Not Present |
|
– Reporting deactivation threshold |
3 |
|
– Replacement activation threshold |
Not Present |
|
– Time to trigger |
640 |
|
– Amount of reporting |
4 |
|
– Reporting interval |
4000 |
|
– Reporting cell status |
|
|
– CHOICE reported cells |
Report cell within active set and/or monitored cells on used frequency |
|
– Maximum number of reported cells |
3 |
|
– Inter-frequency measurement system information |
|
|
– Inter-frequency cell info list |
|
|
– CHOICE Inter-frequency cell removal |
Not present (This IE shall be ignored by the UE for SIB11) |
|
– New inter-frequency cells |
|
|
– Inter frequency cell id |
4 |
|
– Frequency info |
|
|
– CHOICE mode |
TDD |
|
– UARFCN (Nt) |
Reference to table 6.1.7 of 3GPP TS 34.108 for Cell 4 |
|
– Cell info |
|
|
– Cell individual offset |
Not present Absence of this IE is equivalent to default value 0dB |
|
– Reference time difference to cell |
Not present |
|
– Read SFN indicator |
FALSE |
|
– CHOICE mode |
TDD |
|
– Primary CCPCH info |
Refer to clause titled "Default settings for cell No.4 (TDD)" in clause 6.1.4 of 3GPP TS 34.108 |
|
– Primary CCPCH Tx power |
Not present |
|
– TX Diversity Indicator |
FALSE |
|
– Cell Selection and Re-selection Info |
Not present (same values as for serving cell applies) |
|
– Inter frequency cell id |
5 |
|
– Frequency info |
Not Present Absence of this IE is equivalent to value of the previous "frequency info" in the list. |
|
– Cell info |
Same content as specified for Inter-frequency cell id=4 with the exception that value for Cell parameters ID shall be according to clause titled "Default settings for cell No.5 (TDD)" in clause 6.1.4 of 3GPP TS 34.108 |
|
– Inter frequency cell id |
6 |
|
– Frequency info |
Not Present Absence of this IE is equivalent to value of the previous "frequency info" in the list. |
|
– Cell info |
Same content as specified for Inter-frequency cell id=4 with the exception that value for Cell parameters ID shall be according to clause titled "Default settings for cell No.6 (TDD)" in clause 6.1.4 of 3GPP TS 34.108 |
|
– Cell for measurement |
Not present |
|
– Inter-RAT measurement system information |
|
|
– Inter-RAT cell info list |
|
|
– CHOICE Inter-RAT cell removal |
Not Present |
|
– New inter-RAT cells |
|
|
– Inter-RAT cell id |
9 |
|
– CHOICE Radio Access Technology |
GSM |
|
– GSM |
|
|
– Cell individual offset |
0 |
|
– Cell selection and re-selection info |
Not Present |
|
– BSIC |
|
|
– Base transceiver Station Identity Code (BSIC) |
Reference to table 6.1.10 of 3GPP TS 34.108 for Cell 9 |
|
– Band indicator |
According to PICS/PIXIT |
|
– BCCH ARFCN |
Reference to table 6.1.10 of 3GPP TS 34.108 for Cell 9 |
|
– Inter-RAT cell id |
10 |
|
– CHOICE Radio Access Technology |
GSM |
|
– GSM |
|
|
– Cell individual offset |
0 |
|
– Cell selection and re-selection info |
Not Present |
|
– BSIC |
|
|
– Base transceiver Station Identity Code (BSIC) |
Reference to table 6.1.10 of 3GPP TS 34.108 for Cell 10 |
|
– Band indicator |
According to PICS/PIXITs |
|
– BCCH ARFCN |
Reference to table 6.1.10 of 3GPP TS 34.108 for Cell 10 |
|
– Cell for measurement |
Not present |
|
– Traffic volume measurement system information |
Not Present |
8.3.9.1 Cell reselection if cell becomes barred or S<0; UTRAN to GPRS (CELL_FACH)
8.3.9.1.1 Definition
Test to verify that if both a GSM/GPRS and UTRAN network is available, the UE performs cell reselection from UTRAN to GSM/GPRS if the UTRAN cell becomes barred or S falls below zero.
8.3.9.1.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH. When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall:
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.1.3 Test purpose
1. To verify that the UE performs reselection from UTRAN to GPRS in the state CELL_FACH on the following occasions:
– Serving cell becomes barred.
– S<0 for serving cell.
2. To verify when the UE has succeeded in reselecting a cell in the target radio access technology and has initiated the establishment of a connection, it shall release all UTRAN specific resources.
8.3.9.1.4 Method of test
Initial conditions
System Simulator: 3 cells – Cell 1 is UTRAN FDD, Cell 2 is GPRS and Cell 3 is GSM. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 2. 51.010 clause 26.6.5.1 shall be referenced for the default parameters of cell 3. When executing the test in FDD band II or FDD band VIII cell 1 shall use the low range UARFCN, defined in TS 34.108 clause 5.1.1. This is to avoid the FDD band overlapping with the GSM band under test.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 2 (GPRS) and Cell 3 (GSM).
The 3G Neighbour Cell Description of Cell 2 (GPRS) and Cell 3 (GSM) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “20dB” in Cell 1 (UTRAN).
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480, GSM-850, GSM-PCS, GSM-710, GSM 750, T_GSM-810
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
CPICH Ec (FDD) |
dBm / 3.84 MHz |
-60 |
|
P-CCPCH RSCP (TDD) |
dBm |
-60 |
|
Srxlev* |
dB |
19 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 2 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-75 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
25 |
|
FDD_Qmin |
dB |
-20 |
|
FDD_Qoffset |
dBm |
0 |
|
Parameter |
Unit |
Cell 3 (GSM) |
|
Test Channel |
2 |
|
|
RF Signal Level |
dBm |
-85 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
15 |
|
FDD_Qmin |
dB |
-20 |
|
FDD_Qoffset |
dBm |
0 |
Step d-f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CellBarred |
Not barred -> Barred |
|
|
Tbarred |
S |
80 |
Step i:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CPICH Ec (FDD) |
dBm / 3.84 MHz |
-60 -> -90 |
|
P-CCPCH RSCP (TDD) |
dBm |
-60 -> -90 |
|
Srxlev* |
dB |
19 -> -11 |
Test procedure
a) The SS activates cells 1, 2, and 3. The SS monitors cells 1, 2 and 3 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to PS-DCCH+DTCH_FACH (State 6-11). SS then sends SystemInformation Type 11 and 12 with FACH Measurement Occasions.
d) The SS sets Cell 1 to be barred.
e) The SS sends SYSTEM INFORMATION CHANGE INDICATION message to UE to inform UE of the modification in the system information.
f) The SS waits for channel request from the UE SS sends an IMMEDIATE ASSIGNMENT REJECT to bring the UE to idle mode..
g) The SS pages the UE with PAGING TYPE 2 in Cell 1 (UTRAN), if UE does not respond by transmitting an upper layer message to answer this page, it means UE has released the UTRAN resources.
h) The UE is switched off.
i) Step a-h) is repeated with the same initial conditions except that in step d) and e), the signal level is reduced, so S will become negative instead of being barred.
Specific Message Contents
RADIO BEARER SETUP (Step c)
Use the same message as specified for PS-DCCH+DTCH_FACH (state 6-11) in clause 7.4 of TS 34.108, except for the following:
|
Information Element |
Value/remark |
|
New C-RNTI |
‘0000 0000 0000 0001’ |
System Information Block type 11 (Step c)
Use the message type reference found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
System Information Block type 12 (Step c)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
8.3.9.1.5 Test Requirements
In step f), the UE shall respond on Cell 2
In step g), the UE shall not respond in UTRAN cell.
In step i), the UE shall respond on Cell 2 after the signal level is reduced.
8.3.9.1a Cell reselection if cell becomes barred or S<0; UTRAN to GPRS (CELL_FACH), 1.28Mcps TDD
8.3.9.1a.1 Definition
Test to verify that if both a GSM/GPRS and UTRAN network is available, the UE performs cell reselection from UTRAN to GSM/GPRS if the UTRAN cell becomes barred or S falls below zero.
8.3.9.1a.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH. When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall:
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.1a.3 Test purpose
1. To verify that the UE performs reselection from UTRAN to GPRS in the state CELL_FACH on the following occasions:
– Serving cell becomes barred.
– S<0 for serving cell.
2. To verify when the UE has succeeded in reselecting a cell in the target radio access technology and has initiated the establishment of a connection, it shall release all UTRAN specific resources.
8.3.9.1a.4 Method of test
Initial conditions
System Simulator: 3 cells – Cell 1 is UTRAN 1.28Mcps TDD, Cell 2 is GPRS and Cell 3 is GSM. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 2. 51.010 clause 26.6.5.1 shall be referenced for the default parameters of cell 3.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 2 (GPRS) and Cell 3 (GSM).
The 3G Neighbour Cell Description of Cell 2 (GPRS) and Cell 3 (GSM) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “20dB” in Cell 1 (UTRAN).
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480, GSM-850, GSM-PCS, GSM-710, GSM 750, T_GSM-810
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
P-CCPCH RSCP (TDD) |
dBm |
-65 |
|
Srxlev* |
dB |
19 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 2 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-75 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
25 |
|
TDD_Qoffset |
dBm |
-60 |
|
Parameter |
Unit |
Cell 3 (GSM) |
|
Test Channel |
2 |
|
|
RF Signal Level |
dBm |
-85 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
15 |
|
TDD_Qoffset |
dBm |
-60 |
Step d-f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CellBarred |
Not barred -> Barred |
|
|
Tbarred |
S |
80 |
Step i:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
P-CCPCH RSCP (TDD) |
dBm |
-65 -> -95 |
|
Srxlev* |
dB |
19 -> -11 |
Test procedure
a) The SS activates cells 1, 2, and 3. The SS monitors cells 1, 2 and 3 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to PS-DCCH+DTCH_FACH (State 6-11). SS then sends SystemInformation Type 11 and 12 with FACH Measurement Occasions.
d) The SS sets Cell 1 to be barred.
e) The SS sends SYSTEM INFORMATION CHANGE INDICATION message to UE to inform UE of the modification in the system information.
f) The SS waits for channel request from the UE SS sends an IMMEDIATE ASSIGNMENT REJECT to bring the UE to idle mode.
g) The SS pages the UE with PAGING TYPE 2 in Cell 1 (UTRAN), if UE does not respond by transmitting an upper layer message to answer this page, it means UE has released the UTRAN resources.
h) The UE is switched off.
i) Step a-h) is repeated with the same initial conditions except that in step d) and e), the signal level is reduced, so S will become negative instead of being barred.
Specific Message Contents
RADIO BEARER SETUP (Step c)
Use the same message as specified for PS-DCCH+DTCH_FACH (state 6-11) in clause 7.4 of TS 34.108, except for the following:
|
Information Element |
Value/remark |
|
New C-RNTI |
‘0000 0000 0000 0001’ |
System Information Block type 11 (Step c)
Use the message type reference found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
System Information Block type 12 (Step c)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
8.3.9.1a.5 Test Requirements
In step f), the UE shall respond on Cell 2
In step g), the UE shall not respond in UTRAN cell.
In step i), the UE shall respond on Cell 2 after the signal level is reduced.
8.3.9.2 Cell reselection if cell becomes barred or S<0; UTRAN to GPRS (URA_PCH)
8.3.9.2.1 Definition
Test to verify that if both a GSM/GPRS and UTRAN network is available, the UE performs cell reselection from UTRAN to GSM/GPRS if the UTRAN cell becomes barred or S falls below zero.
8.3.9.2.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH.
When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall.
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.2.3 Test purpose
To verify that the UE performs reselection from UTRAN to GPRS in the state URA_PCH on the following occasions:
– Serving cell becomes barred.
– S<0 for serving cell.
8.3.9.2.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN FDD, Cell 9 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 9.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 9 (GPRS).
The 3G Neighbour Cell Description of Cell 9 (GPRS) refers to Cell 1 (UTRAN)
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
CPICH Ec (FDD) |
dBm |
-60 |
|
P-CCPCH RSCP (TDD) |
dBm |
-60 |
|
Qrxlevmin |
dBm |
-101 |
|
Srxlev* |
dBm |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-80 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
20 |
|
FDD_Qmin |
dB |
-20 |
|
FDD_Qoffset |
dBm |
0 |
Step d-f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CellBarred |
Not barred -> Barred |
|
|
Tbarred |
s |
80 |
Step i:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-101 -> -41 |
|
Srxlev* |
dB |
41 -> -19 |
Test procedure
a) The SS activates cells 1 and 9. The SS monitors cells 1 and 9 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to URA_PCH (State 6-13).
d) The SS sets Cell 1 to be barred.
e) The SS sends Paging Type1 message to UE to inform UE of the modification in the system information.
f) The SS waits for channel request from the UE to establish Temporary Block flow.
g) The SS pages the UE with PAGING TYPE 1 in cell 1 (UTRAN), if UE does not respond with Cell Update with cause ‘Paging Response’, it means UE has released the UTRAN resources.
h) The UE is switched off.
i) Step a-e) is repeated with the same initial conditions except that in step d), Qrxlevmin is increased, so S will become negative instead of being barred.
8.3.9.2.5 Test Requirements
In step f), the UE shall respond on Cell 9.
In step g), the UE shall not respond in UTRAN cell.
In step i), the UE shall respond on Cell 9 after Qrxlevmin is increased.
8.3.9.2a Cell reselection if cell becomes barred or S<0; UTRAN to GPRS (URA_PCH), 1.28Mcps TDD
8.3.9.2a.1 Definition
Test to verify that if both a GSM/GPRS and UTRAN network is available, the UE performs cell reselection from UTRAN to GSM/GPRS if the UTRAN cell becomes barred or S falls below zero.
8.3.9.2a.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH.
When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall.
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.2a.3 Test purpose
To verify that the UE performs reselection from UTRAN to GPRS in the state URA_PCH on the following occasions:
– Serving cell becomes barred.
– S<0 for serving cell.
8.3.9.2a.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN 1.28Mcps TDD, Cell 9 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 9.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 9 (GPRS).
The 3G Neighbour Cell Description of Cell 9 (GPRS) refers to Cell 1 (UTRAN)
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
P-CCPCH RSCP (TDD) |
dBm |
-65 |
|
Qrxlevmin |
dBm |
-106 |
|
Srxlev* |
dBm |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-80 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
20 |
|
TDD_Qoffset |
dBm |
-60 |
Step d-f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CellBarred |
Not barred -> Barred |
|
|
Tbarred |
s |
80 |
Step i:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-106 -> -46 |
|
Srxlev* |
dB |
41 -> -19 |
Test procedure
a) The SS activates cells 1 and 9. The SS monitors cells 1 and 9 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to URA_PCH (State 6-13).
d) The SS sets Cell 1 to be barred.
e) The SS sends Paging Type1 message to UE to inform UE of the modification in the system information.
f) The SS waits for channel request from the UE to establish Temporary Block flow.
g) The SS pages the UE with PAGING TYPE 1 in cell 1 (UTRAN), if UE does not respond with Cell Update with cause ‘Paging Response’, it means UE has released the UTRAN resources.
h) The UE is switched off.
i) Step a-e) is repeated with the same initial conditions except that in step d), Qrxlevmin is increased, so S will become negative instead of being barred.
8.3.9.2a.5 Test Requirements
In step f), the UE shall respond on Cell 9.
In step g), the UE shall not respond in UTRAN cell.
In step i), the UE shall respond on Cell 9 after Qrxlevmin is increased.
8.3.9.3 Cell reselection if cell rank changes; UTRAN to GPRS (UE in CELL_FACH fails to complete an inter-RAT cell reselection)
8.3.9.3.1 Definition
8.3.9.3.2 Conformance requirement
If the inter-RAT cell reselection fails, the UE shall:
1> resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
References
TS 25.331, clause 8.3.9.4
8.3.9.3.3 Test purpose
To verify if the inter-RAT cell reselection fails before the UE in CELL_FACH succeeds in initiating the establishment of a connection to the GPRS cell, the UE shall:
– resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
8.3.9.3.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN, Cell 9 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 9.
All cells belong to the same PLMN.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 9 (GPRS).
The 3G Neighbour Cell Description of Cell 9 (GPRS) refers to Cell 1 (UTRAN)
UE: Power-Off (State 1) (UTRAN) as specified in clause 7.4 of TS 34.108.
[FDD] In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “20dB” in Cell 1 (UTRAN).
[TDD] In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “21dB” in Cell 1 (UTRAN).
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480, GSM-850, GSM-PCS, GSM-710, GSM 750, T_GSM-810.
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
CPICH Ec (FDD) |
dBm/3.84MHz |
-60 |
|
P-CCPCH RSCP (TDD) |
dBm |
-63 |
|
Treselections |
s |
5 |
|
R* |
dB |
-58 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-80 |
|
R* |
dB |
-80 |
|
CellBarred |
barred |
Step d:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
CPICH Ec (FDD) |
dBm/3.84MHz |
-60 -> -70 |
|
P-CCPCH RSCP (TDD) |
dBm |
-63 -> -70 |
|
R* |
dB |
-58 -> -68 |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
RF Signal Level |
dBm |
-80 -> -50 |
|
C1* |
dBm |
20 -> 50 |
|
C32* |
dB |
20 -> 50 |
|
R* |
dB |
-80 -> -50 |
|
CellBarred |
barred |
Test procedure
a) The SS activates cells 1 and 9. The SS monitors cells 1and 9 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to PS-DCCH+DTCH_FACH (State 6-11). SS then sends SystemInformation Type 11 and 12 with FACH Measurement Occasions.
d) The SS increases RF Signal Level of the GPRS Cell to -50 dBm and decreases the CPICH (FDD)/ P-CCPCH(TDD) of the UMTS cell to -70 dBm so that the ranking of the UMTS cell goes lower than the GPRS cell.
e) After the expiry of the timer Treselection, SS waits for 5 seconds to allow UE to read the system information for a GPRS cell and finds that the cell is barred. SS then sends SystemInformation Type 11 and 12 without FACH Measurement Occasions. Later SS calls for generic procedure C.2 in cell 1 (UTRAN) to check that UE is in CELL_FACH state. The UE resumes the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
f) The UE is switched off.
Specific Message Contents
RADIO BEARER SETUP (Step c)
Use the same message as specified for PS-DCCH+DTCH_FACH (state 6-11) in clause 7.4 of TS 34.108, except for the following:
|
Information Element |
Value/remark |
|
New C-RNTI |
‘0000 0000 0000 0001’ |
Contents of System Information Block type 11 (Step c)
Use the same message type found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
– FACH measurement occasion info |
||
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
|
– Inter-RAT measurement indicators |
||
|
– RAT-Type |
GSM |
Contents of System Information Block type 12 (Step c)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
|
|
– RAT-Type |
GSM |
Contents of System Information Block type 11 (Step e, 1.28Mcps TDD)
Use the same message type found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
– Inter-RAT measurement system information |
Not Present |
Contents of System Information Block type 12 (Step e, 1.28Mcps TDD)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
– Inter-RAT measurement system information |
Not Present |
8.3.9.3.5 Test Requirements
After step e, the UE remains in CELL_FACH in cell 1.
8.3.9.4 Cell reselection if S<0; UTRAN to GPRS (UE in CELL_PCH fails to complete an inter-RAT cell reselection)
8.3.9.4.1 Definition
8.3.9.4.2 Conformance requirement
If the inter-RAT cell reselection fails, the UE shall:
1> resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
References
TS 25.331, clause 8.3.9.4
8.3.9.4.3 Test purpose
To verify if the inter-RAT cell reselection fails before the UE in CELL_PCH succeeds in initiating the establishment of a connection to the GPRS cell, the UE shall:
– resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
8.3.9.4.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN FDD, Cell 9 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 9.
All cells belong to the same PLMN.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 9 (GPRS).
The 3G Neighbour Cell Description of Cell 9 (GPRS) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) (UTRAN) as specified in clause 7.4 of TS 34.108.
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480,
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
CPICH Ec (FDD) |
dBm |
-60 |
|
P-CCPCH RSCP (TDD) |
dBm |
-60 |
|
Qrxlevmin |
dBm |
-101 |
|
Treselections |
s |
5 |
|
Srxlev* |
dBm |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-80 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
20 |
|
FDD_Qmin |
dB |
-20 |
|
FDD_Qoffset |
dBm |
0 |
|
CellBarred |
barred |
Step d:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-101 -> -41 |
|
Srxlev* |
dB |
41 -> -19 |
Step f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-41 -> -101 |
|
Srxlev* |
dB |
-19-> 41 |
Test procedure
a) The SS activates cells 1 and 9. The SS monitors cells 1and 9 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to CELL_PCH (State 6-12).
d) The SS increases Qrxlevmin, so S will become negative.
e) The SS sends Paging Type 1 message to UE to inform UE of the modification in the system information.
f) The SS decreases Qrxlevmin, so S will become positive (After the expiry of the timer Treselection)
g) SS calls for generic procedure C.4 in cell 1 (UTRAN) to check that UE is in CELL_PCH state. The UE resumes the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure
8.3.9.4.5 Test Requirements
In step f, the UE remains in CELL_PCH in cell 1.
8.3.9.4a Cell reselection if S<0; UTRAN to GPRS (UE in CELL_PCH fails to complete an inter-RAT cell reselection), 1.28Mcps TDD
8.3.9.4a.1 Definition
8.3.9.4a.2 Conformance requirement
If the inter-RAT cell reselection fails, the UE shall:
1> resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
References
TS 25.331, clause 8.3.9.4
8.3.9.4a.3 Test purpose
To verify if the inter-RAT cell reselection fails before the UE in CELL_PCH succeeds in initiating the establishment of a connection to the GPRS cell, the UE shall:
– resume the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure.
8.3.9.4a.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN 1.28Mcps TDD, Cell 9 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 9.
All cells belong to the same PLMN.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 9 (GPRS).
The 3G Neighbour Cell Description of Cell 9 (GPRS) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) (UTRAN) as specified in clause 7.4 of TS 34.108.
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480,
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
P-CCPCH RSCP (TDD) |
dBm |
-65 |
|
Qrxlevmin |
dBm |
-106 |
|
Treselections |
s |
5 |
|
Srxlev* |
dBm |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 9 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-80 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
20 |
|
TDD_Qoffset |
dBm |
-60 |
|
CellBarred |
barred |
Step d:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-106 -> -46 |
|
Srxlev* |
dB |
41 -> -19 |
Step f:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qrxlevmin |
dB |
-46 -> -106 |
|
Srxlev* |
dB |
-19-> 41 |
Test procedure
a) The SS activates cells 1 and 9. The SS monitors cells 1and 9 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to CELL_PCH (State 6-12).
d) The SS increases Qrxlevmin, so S will become negative.
e) The SS sends Paging Type 1 message to UE to inform UE of the modification in the system information.
f) The SS decreases Qrxlevmin, so S will become positive (After the expiry of the timer Treselection)
g) SS calls for generic procedure C.4 in cell 1 (UTRAN) to check that UE is in CELL_PCH state. The UE resumes the connection to UTRAN using the resources used before initiating the inter-RAT cell reselection procedure
8.3.9.4a.5 Test Requirements
In step f, the UE remains in CELL_PCH in cell 1.
8.3.9.5 Successful Cell Reselection with RAU – Qoffset value modification; UTRAN to GPRS (CELL_FACH)
8.3.9.5.1 Definition
8.3.9.5.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH.
When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall.
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.5.3 Test purpose
To verify that the UE performs reselection correctly considering the Qoffset value broadcast in SIB 11.
8.3.9.5.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN FDD, Cell 2 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 2.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 2 (GPRS).
The 3G Neighbour Cell Description of Cell 2 (GPRS) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “20dB” in Cell 1 (UTRAN).
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480, GSM-850, GSM-PCS, GSM-710, GSM 750, T_GSM-810
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
CPICH Ec (FDD) |
dBm |
-60 |
|
P-CCPCH RSCP (TDD) |
dBm |
-60 |
|
Qrxlevmin |
dBm |
-101 |
|
Srxlev* |
dB |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 2 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-70 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
30 |
|
FDD_Qmin |
dB |
-20 |
|
FDD_Qoffset |
dBm |
16 |
Step d:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qoffset1s,n |
dBm |
-25 |
Test procedure
a) The SS activates cells 1 and 2. The SS monitors cells 1and 2 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to PS-DCCH+DTCH_FACH (State 6-11). SS then sends SystemInformation Type 11 and 12 with FACH Measurement Occasions.
d) Qoffset value is modified at UTRAN such that it makes the GSM cell look the best.
e) The SS sends SYSTEM INFORMATION CHANGE INDICATION message to UE to inform UE of the modification in the system information.
f) Void.
g) The SS monitors for random access requests from the UE.
h) The SS pages the UE with PAGING TYPE 2 and PAGING TYPE 1 messages in Cell 1 (UTRAN), if UE does not respond by transmitting an upper layer message to answer this page, it means UE has released the UTRAN resources.
Specific Message Contents
RADIO BEARER SETUP (Step c)
Use the same message as specified for PS-DCCH+DTCH_FACH (state 6-11) in clause 7.4 of TS 34.108, except for the following:
|
Information Element |
Value/remark |
|
New C-RNTI |
‘0000 0000 0000 0001’ |
System Information Block type 11 (Step c)
Use the message type reference found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
System Information Block type 12 (Step c)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
8.3.9.5.5 Test Requirements
In step g), the UE shall respond on Cell 2 and enter PACKET TRANSFER mode after performing the routing area update procedure.
In step h), the UE shall not respond in UTRAN cell.
8.3.9.5a Successful Cell Reselection with RAU – Qoffset value modification; UTRAN to GPRS (CELL_FACH), 1.28Mcps TDD
8.3.9.5a.1 Definition
8.3.9.5a.2 Conformance requirement
1. The purpose of the inter-RAT cell reselection procedure from UTRAN is to transfer, under the control of the UE and to some extent the UTRAN, a connection between the UE and UTRAN to another radio access technology (e.g. GSM/GPRS).
2. This procedure is applicable in states CELL_FACH, CELL_PCH or URA_PCH.
When the UE based on received system information makes a cell reselection to a radio access technology other than UTRAN, e.g. GSM/GPRS, according to the criteria specified in [4], the UE shall.
1> If the NAS procedures associated with inter-system change specified in [5] require the establishment of a connection:
2> initiate the establishment of a connection to the target radio access technology according to its specifications.
3. When the UE has succeeded in reselecting a cell in the target radio access technology, the UE shall:
1> release all UTRAN specific resources.
References
TS 25.331, clause 8.3.9
8.3.9.5a.3 Test purpose
To verify that the UE performs reselection correctly considering the Qoffset value broadcast in SIB 11.
8.3.9.5a.4 Method of test
Initial conditions
System Simulator: 2 cells – Cell 1 is UTRAN 1.28Mcps TDD, Cell 2 is GPRS. 51.010 clauses 20.22 and 40.1.1 shall be referenced for the default parameters of cell 2.
All cells belong to the same PLMN. UTRAN and GPRS cells belong to different location area.
The Inter-RAT Cell Info List of Cell 1 (UTRAN) refers to Cell 2 (GPRS).
The 3G Neighbour Cell Description of Cell 2 (GPRS) refers to Cell 1 (UTRAN).
UE: Power-Off (State 1) as specified in clause 7.4 of TS 34.108.
In SIB3 and SIB4 the IE “SsearchRAT”, is set to value “20dB” in Cell 1 (UTRAN).
Related ICS/IXIT statement
– UE supports both GSM/GPRS and UTRAN Radio Access Technologies,
– UE supports Interactive/Background 32 kbps PS RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH,
– UE supports GSM-P, GSM-E, GSM-DCS, GSM-450, GSM-480, GSM-850, GSM-PCS, GSM-710, GSM 750, T_GSM-810
Step a-c:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Test Channel |
1 |
|
|
P-CCPCH RSCP (TDD) |
dBm |
-65 |
|
Qrxlevmin |
dBm |
-106 |
|
Srxlev* |
dB |
41 |
|
CellBarred |
Not barred |
|
Parameter |
Unit |
Cell 2 (GPRS) |
|
Test Channel |
1 |
|
|
RF Signal Level |
dBm |
-70 |
|
RXLEV_ACCESS_MIN |
dBm |
-100 |
|
C1* |
dBm |
30 |
|
TDD_Qoffset |
dBm |
-60 |
Step d:
|
Parameter |
Unit |
Cell 1 (UTRAN) |
|
Qoffset1s,n |
dBm |
-25 |
Test procedure
a) The SS activates cells 1 and 2. The SS monitors cells 1and 2 for random access requests from the UE.
b) The UE is switched on.
c) The SS brings the UE to PS-DCCH+DTCH_FACH (State 6-11). SS then sends SystemInformation Type 11 and 12 with FACH Measurement Occasions.
d) Qoffset value is modified at UTRAN such that it makes the GSM cell look the best.
e) The SS sends SYSTEM INFORMATION CHANGE INDICATION message to UE to inform UE of the modification in the system information.
f) Void.
g) The SS monitors for random access requests from the UE.
h) The SS pages the UE with PAGING TYPE 2 and PAGING TYPE 1 messages in Cell 1 (UTRAN), if UE does not respond by transmitting an upper layer message to answer this page, it means UE has released the UTRAN resources.
Specific Message Contents
RADIO BEARER SETUP (Step c)
Use the same message as specified for PS-DCCH+DTCH_FACH (state 6-11) in clause 7.4 of TS 34.108, except for the following:
|
Information Element |
Value/remark |
|
New C-RNTI |
‘0000 0000 0000 0001’ |
System Information Block type 11 (Step c)
Use the message type reference found in clause 6.1.0b of TS 34.108, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
System Information Block type 12 (Step c)
Use the message type reference found in clause 8.3.9 of TS 34.123-1, with the following exceptions:
|
Information Element |
Value/remark |
|
FACH measurement occasion info |
|
|
– FACH Measurement occasion cycle length coefficient |
3 |
|
– Inter-frequency FDD measurement indicator |
FALSE |
|
– Inter-frequency TDD measurement indicator |
FALSE |
|
– Inter-RAT measurement indicators |
GSM |
8.3.9.5a.5 Test Requirements
In step g), the UE shall respond on Cell 2 and enter PACKET TRANSFER mode after performing the routing area update procedure.
In step h), the UE shall not respond in UTRAN cell.