A.5.5.2E Five frequencies present in the neighbour list and FACH measurement occasions configured for Increased Carrier Monitoring

25.1333GPPRelease 17Requirements for support of radio resource management (FDD)TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

A.5.5.2E.1 Test Purpose and Environment

The purpose of this test is to verify the requirement for the cell re-selection delay in CELL_FACH state in section 5.5.2.1.2.

The test parameters are given in tables A5.4AI, A5.4AJ, A5.4AK and A5.4AL. The UE is requested to monitor neighbouring cells on 5 carriers. Each repetition of the test consists of five successive time periods, with time duration of T0, T1, T2, T3 and T4 respectively. In the initialisation phase and at the start of each repetition of T0, the test equipment provides signals for cell 1 (serving cell), and selects frequencies for cells 2, 3 and 4 which are chosen from the 5 inter-frequency layers which are configured in the UE neighbour cell list as described in general and cell specific parameters. The neighbour lists of cells 2, 3 and 4 shall include the frequency of cell 1 in the normal performance group as well as the other frequencies configured to the UE in the test. The maximum repetition period of the relevant system info blocks that needs to be received by the UE to camp on a cell shall be 1280 ms.

Table A.5.4AI: General test parameters for Cell Re-selection in CELL_FACH

Parameter		Unit	Value		Comment
UE configured UTRA RF Channel Number				1,2,3,4,5,6	Serving cell and five UTRA FDD interfrequency carrier frequencies are used in the UE neighbour cell list. Frequencies 4,5,6 are indicated to have reduced performance
Test eqipment configuration				Cell 1 uses UTRA RF channel number 1 Cells 2,3,4 are randomly selected to use different frequencies selected from frequencies 2,3,4,5,6
T0	Active cell		Cell1		T0 is repeated on each repetition of the test. In T0 the test equipment selects frequencies for cell 2, 3, 4 and then time is allowed for the UE to identify the neighbour cells. See cell specific parameters for detailed settings.
T1 start condition	Active cell		Cell1
T1 final condition	Active cell		Cell2		UE shall perform reselection to cell 2 during T1
	Neighbour cells		Cell1, Cell3, Cell4
T2 final condition	Active cell		Cell3		UE shall perform reselection to cell 3 during T2
	Neighbour cells		Cell1, Cell2, Cell4
T3 final condition	Active cell		Cell4		UE shall perform reselection to cell 4 during T3
	Neighbour cells		Cell1, Cell2, Cell3
T4 final condition	Active cell		Cell1		UE shall perform reselection to cell 1 during T4
	Neighbour cells		Cell2, Cell3, Cell4
Access Service Class (ASC#0) – Persistence value		–	1		Selected so that no additional delay is caused by the random access procedure. The value shall be used for all cells in the test.
HCS					Not used
Reduced Performance Group Scaling Factor		–	8
T0		s	(Test equipment frequency selection and configuration time) + 66
T1		s	5
T2		s	10
T3		s	10
T4		s	5

The transport and physical parameters of the S-CCPCH carrying the FACH are defined in Table A.5.4AJ and Table A.5.4AK.

Table A.5.4AJ: Physical channel parameters for S-CCPCH

Parameter	Unit	Level
Channel bit rate	Kbps	60
Channel symbol rate	Ksps	30
Slot Format #I	–	4
TFCI	–	OFF
Power offsets of TFCI and Pilot fields relative to data field	dB	0

Table A.5.4AK: Transport channel parameters for S-CCPCH

Parameter	FACH
Transport Channel Number	1
Transport Block Size	240
Transport Block Set Size	240
Transmission Time Interval	10 ms
Type of Error Protection	Convolution Coding
Coding Rate	½
Rate Matching attribute	256
Size of CRC	16
Position of TrCH in radio frame	Fixed

Table A.5.4AL: Cell specific test parameters for Cell re-selection in CELL_FACH state (Cell 1, Cell 2)

Parameter	Unit	Cell 1					Cell 2
		T0	T1	T2	T3	T4	T0			T1	T2	T3	T4
E-UTRA RF Channel number		1					Randomly selected from 2,3 such that cell 2 is in the normal performance group
CPICH_Ec/Ior	dB	-10					-10
PCCPCH_Ec/Ior	dB	-12					-12
SCH_Ec/Ior	dB	-12					-12
PICH_Ec/Ior	dB	-15					-15
S-CCPCH_Ec/Ior	dB	-12					-12
OCNS_Ec/Ior	dB	-1.295					-1.295
	dBm/ 3,84 MHz	-70					-70
	dB	2.4	-3.3	-3.3	-3.3	2.4	-3.3		2.4		-3.3	-3.3	-3.3
CPICH_Ec/Io	dB	-12	-15	-15	-15	-12	-15		-12		-15	-15	-15
Cell_selection_and_reselection_quality_measure		CPICH E_c/N₀					CPICH E_c/N₀
Qqualmin	dB	-20					-20
Qrxlevmin	dBm	-115					-115
UE_TXPWR_ MAX_RACH	dBm	21					21
Qoffset2_{s, n}	dB	C1, C2: 0 C1, C3: 0 C1, C4: 0					C2, C1: 0 C2, C3: 0 C2, C4: 0
Qhyst2	dB	0						0
Treselection	s	0						0
Sintrasearch	dB	not sent						not sent
Sintersearch		not sent						not sent
IE "FACH Measurement occasion info"		sent						sent
FACH Measurement occasion cycle length coefficient		3						3
Inter-frequency FDD measurement indicator		TRUE						TRUE
Inter-frequency TDD measurement indicator		FALSE						FALSE
Propagation Condition		AWGN						AWGN

Table A.5.4AM: Cell specific test parameters for Cell re-selection in CELL_FACH state (Cell3, Cell4)

Parameter

Unit

Cell 3

Cell 4

E-UTRA RF Channel number

Randomly selected from 4,5,6 such that cell 3 is in the reduced performance group

Randomly selected from 4,5,6 such that cell 4 is in the reduced performance group

CPICH_Ec/Ior

-10

PCCPCH_Ec/Ior

-12

SCH_Ec/Ior

-12

PICH_Ec/Ior

-15

S-CCPCH_Ec/Ior

-12

OCNS_Ec/Ior

-1.295

dBm/
3,84 MHz

-70

-3.3

2.4

-3.3

2.4

-3.3

CPICH_Ec/Io

-15

-12

-15

-12

-15

Cell_selection_and_reselection_quality_measure

CPICH E_c/N₀

Qqualmin

-20

Qrxlevmin

dBm

-115

UE_TXPWR_
MAX_RACH

dBm

Qoffset2_{s, n}

C3, C1: 0
C3, C2: 0
C3, C4: 0

C4, C1: 0
C4, C2: 0
C4, C3: 0

Qhyst2

Treselection

Sintrasearch

not sent

Sintersearch

not sent

IE "FACH Measurement occasion info"

sent

FACH Measurement occasion cycle length coefficient

Inter-frequency FDD measurement indicator

TRUE

Inter-frequency TDD measurement indicator

FALSE

Propagation Condition

AWGN

A.5.5.2E.2 Test Requirements

The cell re-reselection delay is defined as the time from the beginning of a relevant time period, to the moment when the UE camps on the target cell, and starts to send preambles on the PRACH for sending the the CELL UPDATE message with cause value "cell reselection" on the target Cell.

This gives a total of

Time phase	Target cell	Requirement for reselection delay (seconds)
T1	Cell 2 (normal performance group)	2.5s
T2	Cell 3 (reduced performance group)	12.9s
T3	Cell 4 (reduced performance group)	12.9s
T4	Cell 1 (normal performance group)	2.5s

The rate of correct cell reselections to the normal performance group observed during repeated tests shall be at least 90% and the rate of correct cell reselections to the reduced performance group observed during repeated tests shall be at least 90%, with a successful reselection counted if it is within the required time regardless of the carrier frequencies involved.

NOTE: The cell re-selection delay in this case is expressed as:

ms,

where:

T_{measurement inter}is specified in 8.4.2.3.2 as xxx ms in this case.

T_SI: The time required for receiving all the relevant system information data according to the reception procedure and the RRC procedure delay of system information blocks defined in 25.331 for a UTRAN cell.1280 ms is assumed in this test case.

NOTE: Since 1280 ms is one of the typical values for repeating system information blocks, T_SI of 1280 ms could be increased by the RRC procedure delay in order to allow the SIB repetition period of 1280 ms.

T_RA: T_RA is a delay is caused by the physical random access procedure described in TS 25.214 section 6.1. A persistence value is assumed to be 1 in this test case and therefore T_RA in this test case is 40 ms.