Inter-RAT Cell Reselection Function - ZTE LTE FDD Inter-RAT Interoperability Feature Guide(V3.2

5.7.1 Parameters List

Table 5-11 Parameters List

SN Parameter Name Figure

1 User

–

Inactivity Enabled Figure5-22

2 User- Inacti vity Timer on Control Panel Figure 5-23 3 Whether configure Snonintrasearch parameters Figure 5-24

4 Decision threshold of same/lower priority RSRP

measurement Figure 5-24

5 Lower threshold of serving carrier Figure 5-24 6 Reselection priority of intra-frequency cell Figure 5-24 7 Cell reselection prio rity base SPID Figure 5-24 8 Decision threshold of same/lower priority RSRQ

measurement Figure 5-24

RSRQ threshold (in dB) of the serving cell when reselecting towards a lower priority RAT/

frequency (Release 9)

Figure 5-24

Switch for „Threshold (in dB) of the serving cell

when reselecting towards a lower priority RAT/

frequency RSRQ (Release

9)‟

Figure 5-24

11 UTRAN FDD frequency number Figure 5-25

12 UTRAN FDD ARFCN Figure 5-25

13 UTRAN cell reselection priority Figure 5-25

14 Minimum required UTRAN FDD cell RX level

when c ell selection Figure 5-25

15 RSRP threshold for Reselecting to High Priority

UTRAN FDD Cell Figure 5-25

16 Minimum quantity required UTRAN FDD cell

selection Figure 5-25

17 RSRQ threshold for reselecting higher priority

serving UTRAN cell Figure 5-25

18 RSRQ threshold for reselecting higher priority

serving UTRAN cell Figure 5-25

19 RSRQ threshold for reselecting lower priority

serving UTRAN cell Figure 5-25

20 UTRAN FDD frequency number Figure 5-26

21 UTRAN FDD ARFCN Figure 5-26

22 UTRAN FDD cell reselect ion priority Figure 5-26 23 Minimum required UTRAN FDD Cell Rx level

when cell selection Figure 5-26

24 RSRP threshold for Reselecting to High Priority

UTRAN FDD Cell Figure 5-26

25 RPRP threshold for reselecting to low priority

UTRAN FDD cell Figure 5-26

26 Number of GERAN carriers Figure 5-27

27 Band Indicat or Figure 5-27

28 Representation of the Remaining ARFCN Figure 5-27

29 The Number of Explicit ARFCN Figure 5-27

30 Equally Spaced ARFCN Value Figure 5-27

31 the Number of the Remaining Equally Spaced

ARFCN Values Figure 5-27

32 Minimum Required GERAN Cell RX Level

When Cell Selection Figure 5-27

33 Threshold for Reselecting to High Priority

GERAN Cell Figure 5-27

34 Threshold for Reselecting to Low Priority

GERAN Cell Figure 5-27

35 Geran Cell Reselection Priority Figure 5-27

36 the First ARFCN Value Figure 5-27

37 ARFCN detailed list Figure 5-27

5.7.2 Parameters Configuration rule

Table 5-12 Parameters Configuration rule

SN MO

Name

Short

Name Description Value

Range

The parameter is used to determine whether or not to enable UE inactivity function.

The parameter is a

switch indicating whether S_nonintrasearch is configured or not If the value is False, UE always performs measurements of

inter-RAT frequencies or inter-frequencies of equal or lower priority If the value is True, S_nonintrasearch is configured to UE, and UE judges whether to perform the

measurements of

inter-RAT frequencies or inter-frequencies of equal or lower priority For detail description please refers to TS 36304.

enum(N

o,Yes) Yes

The parameter indicates the measurement

triggering threshold for cell reselection

(S_nonintrasearch) used by UE to judge whether inter-frequency/inter-RA T should be performed If the quality of serving cell exceeds

S_nonintrasearch, UE may choose not to perform me asurements of inter-RAT frequencies or inter-frequencies of equal or lower priority if the quality of serving cell is not larger than

S_nonintrasearch, UE shall perform

measurements of

inter-RAT frequencies or inter-frequencies cells of equal or lower priority For detail description please refers to TS 36304

[0,62] 50

The parameter indicates the threshold for cell reselection to a cell on a lower priority RAT or frequency There have 3 elements fulfilled for cell reselection criteria : (1) No cell of a higher

priority RAT or frequency fulfills the criteria above (2) SServingCell <

ThresholdServing_Low and the

SnonServingCell,x of a cell of a lower priority frequency RAT or

frequency is greater than ThresholdX_Low

(including

inter-frequency and inter-RAT) during a time interval TreselectionRAT (3) more than 1 second has elapsed since the UE camped on the current serving cell For detail description please refers to TS 36304

[0,62] 6

The parameter indicates intra-frequency cell reselection priority The less its value is, the lower its priority class is

0-7 7

This parameter indicates This parameter indicates the reselection priority of the reselection priority of RAT. The reselection RAT. The reselection priority of RAT is defined priority of RAT is defined by SPID value sent to by SPID value sent to eNB from EPC with S1 eNB from EPC with S1 interface. EUTRAN, interface. EUTRAN, GERAN, UTRAN is GERAN, UTRAN is divided into High, divided into High,

Medium, Low class, and Medium, Low class, and its priority is determined its priority is determined by SPID value

by SPID value respectively.

respectively.

0-7 7,4,1 0-7 7,4,1

This parameter indicates This parameter indicates the measurement

the measurement triggering threshold for triggering threshold for cell reselection

cell reselection (SnonintrasearchQ) (SnonintrasearchQ) used by UE to judge used by UE to judge whether

whether

inter-frequency/inter-RA inter-frequency/inter-RA T should be performed. If T should be performed. If the quality of serving cell the quality of serving cell exceeds

exceeds

Snonintrasearch, UE Snonintrasearch, UE may choose not to may choose not to perf

perform meorm me asurementsasurements of inter-RAT frequencies of inter-RAT frequencies or inter-frequencies of or inter-frequencies of equal or lower priority. if equal or lower priority. if the quality of serving cell the quality of serving cell is not larger than

is not larger than SnonintrasearchQ, UE SnonintrasearchQ, UE shall perform

shall perform measurements of measurements of

inter-RAT frequencies or inter-RAT frequencies or inter-frequencies cells of inter-frequencies cells of equal or lower priority.

equal or lower priority.

For detail description For detail description please refers to TS please refers to TS 36.304. Range of the 36.304. Range of the parameter is actual value parameter is actual value which equals to the which equals to the va

value in 3lue in 3 6.336.331.1.

1-31 1

This parameter indicates This parameter indicates the threshold for cell the threshold for cell reselection to a cell on a reselection to a cell on a lower priority RAT or lower priority RAT or frequency. There have 3 frequency. There have 3 elements fulfilled for cell elements fulfilled for cell reselection criteria: (1) reselection criteria: (1) No cell of a higher No cell of a higher

priority RAT or frequency priority RAT or frequency fulfills the criteria above;

fulfills the criteria above;

(2) SServingCell <

ucThreshSrvLowQ and ucThreshSrvLowQ and the SnonServingCell,x of the SnonServingCell,x of a cell of a lower priority a cell of a lower priority frequency RAT or frequency RAT or

frequency is greater than frequency is greater than ucThreshSvrLow

ucThreshSvrLow (including

(including

inter-frequency and inter-frequency and inter-RAT) during a time inter-RAT) during a time interval

interval

TreselectionRAT; (3) TreselectionRAT; (3) more than 1 second has more than 1 second has elapsed since the UE elapsed since the UE camped on the current camped on the current serving cell. For detail serving cell. For detail description please refers description please refers to TS 36.304. Range of to TS 36.304. Range of the parameter is actual the parameter is actual value which equals to value which equals to the value in 36.331.

the value in 36.331.

[1,31] 3

If select „Open‟, then the If select „Open‟, then the

parameter

“Thre “Threshold shold (in (in

dB) of the serving cell dB) of the serving cell when reselecting when reselecting

towards a lower priority towards a lower priority RAT/ frequency RSRQ RAT/ frequency RSRQ

(Release 9)”

(threshServingLowQ-r9 (threshServingLowQ-r9 IE)

IE) shall preseshall prese nt in SInt in SIB3.B3.

enum(Cl

This parameter is used to present the UTRAN frequency number.

arriFreq UTRAN FDD ARFCN [0..1638

3] 0

UTRAN FDD cell

reselection priority [0,7] 5

The parameter indicates the minimum required received power level of UTRAN FDD cell which satisfies the condition of being reselected by UE It is a key parameter of SnonServingCell,x which is necessary to calculate for reselection to a

UTRAN FDD neighbor cell Range of the

parameter is actual value which equals to double of value in 36331 plus 1.

[-119,-2 5] step 2 unit dBm

-115

The parameter indicates the threshold for cell reselection to a higher priority UTRAN FDD cell There have 2 elements fulfilled for cell

reselection criteria:(1) the SnonservingCell,x of a higher priority UTRAN FDD cell is greater than utran_ThreshX_High _FDD during a t ime

interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell.

The parameter indicates the threshold for cell reselection to a lower priority frequency

UTRAN FDD cell There have 3 elements fulfilled for cell reselection

criteria :(1) No cell of a higher priority frequency or inter-RAT fulfills the criteria above (2) SServingCell <

ThresholdServing_Low and the

SnonServingCell,x of a lower priority UTRAN FDD cell is greater than utran_ThreshX_Low _FDD during a time

interval Treselection (3) more than 1 second has elapsed since the UE camped on the current serving c ell

[0,62] 10

The parameter indicates the minimum quality requirement of UTRAN FDD cell which satisfies the condition of being reselected by UE It is a ke y

parameter of

SnonServingCell,x which is necessary to calculate for reselection to a UTRAN FDD neighbor cell

[-24,0] -18

This specifies the Squal threshold (in dB) used by the UE when reselecting towards a higher priority RAT/ frequency than the current serving frequency Each frequency of E-UTRAN and UTRAN

This specifies the Srxlev threshold (in dB) used by the UE when reselecting towards a lower priority RAT/ frequency than the current serving frequency Each frequency of E-UTRAN and UTRAN, each group of GERAN frequencies, each band class of CDMA2000 HRPD and CDMA2000 1xRTT might have a specific

UTRAN TDD frequency

number [0,16] 0

UTRAN TDD ARFCN [0,1638

3] 0

The parameter indicates UTRAN TDD cell

reselection priority The less its value is, the lower its priority class is

[0,7] 7

The parameter indicates the minimum required received power level of UTRAN TDD cell which satisfies the condition of being reselected by UE It is a key parameter of SnonServingCell,x which is necessary to calculate for reselection to a

UTRAN TDD neighbor cell

[-119,-2

5] -115

The parameter indicates the threshold for cell reselection to a higher priority UTRAN TDD cell There have 2 elements fulfilled for cell

reselection criteria:(1) the SnonservingCell,x of a higher priority UTRAN TDD cell is greater than utran_ThreshX_High _TDD during a t ime

interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell

The parameter indicates the threshold for cell reselection to a lower priority frequency

UTRAN TDD cell There have 3 elements fulfilled for cell reselection

criteria :(1) No cell of a higher priority frequency or inter-RAT fulfills the criteria above (2) SServingCell <

ThresholdServing_Low and the

SnonServingCell,x of a lower priority UTRAN TDD cell is greater than utran_ThreshX_Low _TDD during a time

interval Treselection (3) more than 1 second has elapsed since the UE camped on the current serving c ell

[0,62] 10

The parameters indicate the numbers of GERAN Frequency Group. The GERAN carrier

frequencies are

organized in groups and the cell reselection parameters are provided per group of GERAN carrier frequencies.

The parameter indicates the frequency band for downlink carrier

The parameter indicates the representation of the remaining ARFCN, include explicitly and equally spaced

The parameter indicates the Number of Explicit

The parameter indicates the equally spaced ARFCN value

The parameter indicates the number of the

remaining equally spaced ARFCN values

0-31 0

The parameter indicates the minimum required received power level of GERAN cell which satisfies the condition of being reselected by UE It is a key parameter of SnonServingCell,x which is necessary to calculate for reselection to a

GERAN neighbor cell.

[-115,-2

The parameter indicates the threshold for cell reselection to a higher priority GERAN cell There have 2 elements fulfilled for cell

reselection criteria^:(1) the SnonservingCell,x of a higher priority GERAN cell is greater than geran_ThreshX_High during a time interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell.

[0,62]

step 2 unit dB

The parameter indicates the threshold for cell reselection to a lower priority frequency

GERAN cell There have 3 elements fulfilled for cell reselection

criteria:(1) No cell of a higher priority frequency or inter-RAT fulfills the criteria above (2) SServingCell <

ThresholdServing_Low and the

SnonServingCell,x of a lower priority GERAN cell is greater than geran_ThreshX_Low during a time interval Treselection (3) more than 1 second has elapsed since the UE camped on the current serving cell.

The parameter indicates GERAN cell reselection priority The less its value is, the lower its priority class is.

FCN The First ARFCN Value [0..1023

] 0

The parameter indicates

the explicit list of ARFCN 0-1023 0

5.7.3 Parameters Configuration Procedure

5.7.3.1 Function Activation

1. User-inacti vity Enabled Switch Configuration^:

Select Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration ->Global Switch , see Figure 5-22, c lick button, config ur e User-inactivity Enabled to open.

Figure 5-22 User-inactivity Switch Configuration

2. User- Inacti vity Timer on Control Panel Configuration:

Select Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration ->Global Switch ,see Figure 5-23, click button, and configure User- Inactivity Timer on Control Panel.

Figure 5-23 User- Inacti vity Timer on Control Panel Con figuration

3. E-UTRAN Cell Reselection Param eters Configuration:

Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->E-UTRAN Cell Reselection , see Figure 5-24, clic k button, an d configure the r elated parameters.

Figure 5-24 E-UTRAN Cell Reselection Parameters Configuration

4. UTRAN FDD Cell Reselection Configuration:

Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->UTRAN FDD Cell Reselection , see Figure 5-25, click button, and configure the related parameters.

Figure 5-25 UTRAN FDD Cell Reselection Configuration

5. UTRAN TDD Cell Reselection Configuration:

Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->UTRAN TDD Cell Reselection , see Figure 5-26, click button, and configure the related parameters.

Figure 5-26 UTRAN TDD Cell Reselection Configuration

6. GERAN Cell Reselection Configuration:

Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->GERAN Cell Reselection, see Figure 5-27, c lick button, an d configure the r elated parameters.

Figure 5-27 GERAN Cell Reselection Configuration

5.7.3.2 5.7.3.2 Other Other Parameters Parameters Configuration Configuration

Please refer to chapter 5.1.3.2.

5.7.3.3 5.7.3.3 Data Data Sy Synchronizat nchronization ion

Please refer to chapter 5.1.3.3 Please refer to chapter 5.1.3.3..

5.7.3.4 5.7.3.4 Function Function De Deacti activat vation ion

No.

In document ZTE LTE FDD Inter-RAT Interoperability Feature Guide(V3.20.30)_V1.0 (Page 66-90)