A.8.3 RRC_CONNECTED state mobility

38.1333GPPNRRelease 17Requirements for support of radio resource managementTS

A.8.3.1 Handover

A.8.3.1.1 E-UTRAN – NR handover in FR1

A.8.3.1.1.1 Test Purpose and Environment

This test shall verify the E-UTRAN to NR FR1 handover requirements as specified in clause 6.1.2.1 specified in clause 5.3.4 in TS 36.133 [15].

The test comprises of one E-UTRA carrier and one NR carrier. There are two cells and one cell on each carrier. Cell 1 is the E-UTRAN and Cell 2 is an inter-RAT NR neighbour cell. The test consists of three successive time periods, with time durations of T1, T2 and T3 respectively. At the start of time duration T1, the UE does not have any timing information of Cell 2. Starting T2, Cell 2 becomes detectable and the UE is expected to detect and send a measurement report. Gap pattern configuration with id #0 as specified in Table 8.1.2.1-1 of TS 36.133 [15] is configured before T2 begins to enable inter-RAT frequency monitoring.

A RRC message implying handover shall be sent to the UE during period T2 after the UE has reported Event B2. The start of T3 is the instant when the last TTI containing the RRC message implying handover is sent to the UE. The handover message shall contain Cell 2 as the target cell.

Supported test configurations are shown in table A.8.3.1.1-1. General test parameters are provided in Table A.8.3.1.1-2. Cell specific test parameters for Cell 1 and Cell 2 are provided in Tables A.8.3.1.1-3 and A.8.3.1.1-4 respectively.

Table A.8.3.1.1-1: Supported test configurations for E-UTRAN inter-RAT NR handover

Configuration

Description

1

LTE FDD, NR 15 kHz SSB SCS, 10 MHz bandwidth, FDD duplex mode

2

LTE FDD, NR 15 kHz SSB SCS, 10 MHz bandwidth, TDD duplex mode

3

LTE FDD, NR 30 kHz SSB SCS, 40 MHz bandwidth, TDD duplex mode

4

LTE TDD, NR 15 kHz SSB SCS, 10 MHz bandwidth, FDD duplex mode

5

LTE TDD, NR 15 kHz SSB SCS, 10 MHz bandwidth, TDD duplex mode

6

LTE TDD, NR 30 kHz SSB SCS, 40 MHz bandwidth, TDD duplex mode

Note: The UE is only required to be tested in one of the supported test configurations

Table A.8.3.1.1-2: General test parameters for E-UTRAN inter-RAT NR handover

Parameter

Unit

Value

Comment

NR RF Channel Number

1

1 NR carrier frequency is used in the test

LTE RF Channel Number

2

1 E-UTRAN carrier frequency is used in the test

Initial conditions

Active cell

Cell 1

E-UTRAN cell

Neighbouring cell

Cell 2

NR cell

Final condition

Active cell

Cell 2

NR measurement quantity

SS-RSRP

E-UTRAN measurement quantity

RSRP

b2-Threshold1

dBm

-83

Absolute E-UTRAN RSRP threshold for event B2

b2-Threshold2NR

dBm

As specified in Table A.8.3.1.1-4

Absolute NR SS-RSRP threshold for event B2

Hysteresis

dB

0

TimeToTrigger

s

0

Filter coefficient

0

L3 filtering is not used

DRX

OFF

Non-DRX test

Access Barring Information

Not sent

No additional delays in random access procedure

Time offset between cells

3 ms

Asynchronous cells

Gap pattern configuration Id

0

As specified in Table 8.1.2.1-1 started before T2 starts [15]

T1

s

5

T2

s

5

T3

s

1

Table A.8.3.1.1-3: Cell specific test parameters for E-UTRAN inter-RAT NR handover (Cell 1)

Parameter

Unit

Configuration

Cell 1

T1

T2

T3

RF channel number

1, 2, 3, 4, 5, 6

2

Duplex mode

1, 2, 3

FDD

4, 5, 6

TDD

TDD special subframe configurationNote1

4, 5, 6

6

TDD uplink-downlink configurationNote1

4, 5, 6

1

BWchannel

MHz

1, 2, 3, 4, 5, 6

5 MHz: NRB,c = 25

10 MHz: NRB,c = 50

20 MHz: NRB,c = 100

PRACH ConfigurationNote2

1, 2, 3

4

4, 5, 6

53

PDSCH parameters:

DL Reference Measurement ChannelNote3

1, 2, 3

5 MHz: R.7 FDD

10 MHz: R.3 FDD

20 MHz: R.6 FDD

4, 5, 6

5 MHz: R.4 TDD

10 MHz: R.0 TDD

20 MHz: R.3 TDD

PCFICH/PDCCH/PHICH parameters:

DL Reference Measurement ChannelNote3

1, 2, 3

5 MHz: R.11 FDD

10 MHz: R.6 FDD

20 MHz: R.10 FDD

4, 5, 6

5 MHz: R.11 TDD

10 MHz: R.6 TDD

20 MHz: R.10 TDD

OCNG PatternsNote3

1, 2, 3

5 MHz: OP.20 FDD

10 MHz: OP.10 FDD

20 MHz: OP.17 FDD

4, 5, 6

5 MHz: OP.9 TDD

10 MHz: OP.1 TDD

20 MHz: OP.7 TDD

PBCH_RA

dB

1, 2, 3, 4, 5, 6

0

PBCH_RB

PSS_RA

SSS_RA

PCFICH_RB

PHICH_RA

PHICH_RB

PDCCH_RA

PDCCH_RB

PDSCH_RA

PDSCH_RB

OCNG_RANote4

OCNG_RBNote4

NocNote5

dBm/15kHz

1, 2, 3, 4, 5, 6

-98

Ês/Noc

dB

1, 2, 3, 4, 5, 6

7

7

7

Ês/IotNote6

dB

1, 2, 3, 4, 5, 6

7

7

7

RSRPNote6

dBm/15kHz

1, 2, 3, 4, 5, 6

-91

-91

-91

SCH_RPNote6

dBm/15kHz

1, 2, 3, 4, 5, 6

-91

-91

-91

IoNote6

dBm/9MHz

1, 2, 3, 4, 5, 6

-62.43

-62.43

-62.43

Propagation Condition

1, 2, 3, 4, 5, 6

AWGN

Antenna Configuration and Correlation Matrix Note7

1, 2, 3, 4, 5, 6

1×2 Low

Note 1: Special subframe and uplink-downlink configurations are specified in table 4.2-1 in TS 36.211 [23].

Note 2: PRACH configurations are specified in table 5.7.1-2 and table 5.7.1-3 in TS 36.211 [23].

Note 3: DL RMCs and OCNG patterns are specified in clauses A 3.1 and A 3.2 of TS 36.133 [15] respectively.

Note 4: OCNG shall be used such that all cells are fully allocated and a constant total transmitted power spectral density is achieved for all OFDM symbols.

Note 5: Interference from other cells and noise sources not specified in the test is assumed to be constant over subcarriers and time and shall be modelled as AWGN of appropriate power for Noc to be fulfilled.

Note 6: Ês/Iot, RSRP, SCH_RP and Io levels have been derived from other parameters for information purposes. They are not settable parameters themselves.

Note 7: Propagation condition and correlation matrix are defined in clause B.2 in TS 36.101 [25].

Table A.8.3.1.1-4: Cell specific test parameters E-UTRAN inter-RAT NR handover (Cell 2)

Parameter

Unit

Configuration

Cell 2

T1

T2

T3

RF channel number

1, 2, 3, 4, 5, 6

1

Duplex mode

1, 4

FDD

2, 3, 5, 6

TDD

TDD Configuration

2, 5

TDDConf.1.1

3, 6

TDDConf.2.1

BWchannel

MHz

1, 4

10: NRB,c = 52 (FDD)

2, 5

10: NRB,c = 52 (TDD)

3, 6

40: NRB,c = 106 (TDD)

PDSCH reference measurement channel

1, 4

SR.1.1 FDD

2, 5

SR.1.1 TDD

3, 6

SR.2.1 TDD

CORSET reference channel

1, 4

CR.1.1 FDD

2, 5

CR.1.1 TDD

3, 6

CR.2.1 TDD

PRACH configuration

FR1 PRACH configuration 1

OCNG patternNote1

1, 2, 3, 4, 5, 6

OP.1

BWP

Initial DL BWP

1, 2, 3, 4, 5, 6

DLBWP.0.1

Dedicated DL BWP

DLBWP.1.1

Initial UL BWP

ULBWP.0.1

Dedicated UL BWP

ULBWP.1.1

SMTC configuration

1, 2, 3, 4, 5, 6

SMTC.1

SSB configuration

1, 2, 4, 5

SSB.1 FR1

3, 6

SSB.2 FR1

b2-Threshold2NR

dBm

1, 2, 4, 5

-106

3, 6

-103

EPRE ratio of PSS to SSS

dB

1, 2, 3, 4, 5, 6

0

EPRE ratio of PBCH_DMRS to SSS

EPRE ratio of PBCH to PBCH_DMRS

EPRE ratio of PDCCH_DMRS to SSS

EPRE ratio of PDCCH to PDCCH_DMRS

EPRE ratio of PDSCH_DMRS to SSS

EPRE ratio of PDSCH to PDSCH_DMRS

EPRE ratio of OCNG DMRS to SSS

EPRE ratio of OCNG to OCNG DMRS

NocNote2

dBm/15 KHz

1, 2, 3, 4, 5, 6

-98

NocNote2

dBm/SCS

1, 2, 4, 5

-98

3, 6

-95

Ês/Noc

dB

1, 2, 3, 4, 5, 6

-inifinity

0

0

Ês/IotNote3

dB

1, 2, 3, 4, 5, 6

-inifinity

0

0

SS-RSRPNote3

dBm/SCS

1, 2, 4, 5

-inifinity

-98

-98

3, 6

-inifinity

-95

-95

IoNote3

dBm/9.36 MHz

1, 2, 4, 5

-70.05

-67.04

-67.04

dBm/38.16 MHz

3, 6

-63.96

-60.94

-60.94

Propagation condition

1, 2, 3, 4, 5, 6

AWGN

Antenna Configuration and Correlation Matrix

1, 2, 3, 4, 5, 6

1×2 Low

Note 1: OCNG shall be used such that both cells are fully allocated and a constant total transmitted power spectral density is achieved for all OFDM symbols.

Note 2: Interference from other cells and noise sources not specified in the test is assumed to be constant over subcarriers and time and shall be modelled as AWGN of appropriate power for Noc to be fulfilled.

Note 3: Ês/Iot, SS-RSRP, and Io levels have been derived from other parameters for information purposes. They are not settable parameters themselves.

A.8.3.1.1.2 Test Requirements

The UE shall start to transmit the PRACH to Cell 2 less than 85 ms from the beginning of time period T3.

The rate of correct handovers observed during repeated tests shall be at least 90%.

NOTE: The handover delay can be expressed as: RRC procedure delay + Tinterrupt, where:

RRC procedure delay = 50 ms and is specified in TS36.331.

Tinterrupt = 62 ms in the test; Tinterrupt is defined in TS36.133 clause 5.3.4.3.

This gives a total of 112 ms.