A.7.5.7 PSCell addition and release delay

38.1333GPPNRRelease 16Requirements for support of radio resource managementTS

A.7.5.7.1 Addition and Release Delay of known NR PSCell

A.7.5.7.1.1 Test Purpose and Environment

The purpose of this test is to verify the PSCell addition and release delay requirements defined in clauses 8.9.2 and 8.9.3, respectively, for the case where the PSCell is known to the UE at the time of addition.

The supported test configurations are given in Table A.7.5.7.1.1-1. The test scenario comprises two NR cells, Cell 1 and Cell 2, on radio channel 1 in FR1 and radio channel 2 in FR2, respectively. Test parameters are given in Tables A.7.5.7.1.1-2 and A.7.5.7.1.1-3 below. The test consists of five time periods with durations T1, T2, T3, T4 and T5, respectively.

At the start of T1, the UE shall be connected to Cell 1 (PCell) on radio channel 1 (PCC) and shall only monitor PCC and hence be unaware of Cell 2 (PSCell-to-be) on radio channel 2. Before the start of T2, the test system shall send measurement control information including measurement gap configuration and event-triggered reporting configuration for measurements on radio channel 2.

During T2, the UE shall identify Cell 2 and send an event-triggered report. When the tests system receives the report, it shall send updated measurement control information where the measurement gap pattern is released. Before the start of T3, the test system shall send a RRC message instructing the UE to add PSCell (Cell 2), and further instructing the UE to report CSI periodically in the PSCell once it has been added. Reception by the UE of this RRC message defines the start of T3.

During T3, the UE shall carry out random access towards the PSCell. Reception by the test system of the PRACH preamble defines the start of T4.

During T4, the UE shall send periodic CSI reports in PSCell. After having received at least one such report, the test system shall send a RRC message instructing the UE to release the PSCell. Reception by the UE of the RRC message defines the start of T5.

During T5, the UE shall release the PSCell.

Table A.7.5.7.1.1-1: Supported test configurations for FR2 PSCell

Config

Description

1

FR1 FDD SSB SCS 15kHz BW 10MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

2

FR1 TDD SSB SCS 15kHz BW 10MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

3

FR1 TDD SSB SCS 30kHz BW 40MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

Note 1: The UE is only required to be tested in one of the supported test configurations

Table A.7.5.7.1.1-2: General test parameters for PSCell addition and release delay

Parameter

Unit

Value

Comment

RF Channel Number

1, 2

Two radio channels are used for this test

Active PCell

Cell 1

PCell on RF channel number 1 in FR1

Neighbour cell

Cell 2

Neighbour cell (PSCell-to-be) on RF channel number 2 in FR2

A4

Hysteresis

dB

0

Hysteresis for event A4

Threshold RSRP

dBm

-97

Threshold for event A4

Time to Trigger

S

0

Time to trigger for event A4

DRX

OFF

For both PCell and PSCell once activated

Measurement gap pattern ID

0

Gaps are configured before T2 and released before T3.

PRACH configuration in Cell 2

FR2 PRACH configuration 2

PRACH configuration as specified in Clause A.3.8.3.2.

CSI reporting periodicity and offset configuration for Cell 2

ms

2

T1

s

5

During this time the PCell is known and Cell 2 is unknown.

T2

s

1

During this time the UE shall identify neighbour cell 2 and report event B1.

T3

s

1

During this time the UE adds the PSCell.

T4

s

1

During this time the UE sends CSI reports for PSCell.

T5

s

1

During this time the UE releases the PSCell.

Table A.7.5.7.1.1-3: NR Cell specific test parameters for PSCell addition and release delay

Parameter

Unit

Config

Cell 1

Cell2

T1

T2

T3

T4

T5

AoA setup

1,2,3

N/A

Setup 2a according to clause A.3.15.2.1

Assumption for UE beams Note 5

N/A

Rough

Frequency Range

1,2,3

FR1

FR2

Duplex mode

1

FDD

TDD

2,3

TDD

TDD configuration

1

TDDConf.3.1

2

TDDConf.1.1

3

TDDConf.2.1

BWchannel

MHz

1,2

10: NRB,c = 52

100: NRB,c = 66

3

40: NRB,c = 106

Initial Downlink BWP configuration

1,2,3

DLBWP.0.1

DLBWP.0.1

Initial Uplink BWP configuration

1,2,3

ULBWP.0.1

ULBWP.0.1

Dedicated Downlink BWP configuration

1,2,3

DLBWP.1.1

DLBWP.1.1

Dedicated Uplink BWP configuration

1,2,3

ULBWP.1.1

ULBWP.1.1

PDSCH Reference Measurement Channel

1

SR.1.1 FDD

SR.3.1 TDD

2

SR.1.1 TDD

3

SR.2.1 TDD

TRS configuration

1,2,3

TRS.2.1 TDD

TCI state

1,2,3

TCI.State.0

RMSI CORESET parameters

1

CR.1.1 FDD

CR.3.1 TDD

2

CR.1.1 TDD

3

CR.2.1 TDD

Dedicated CORESET parameters

1

CCR.1.1 FDD

CCR.3.1 TDD

2

CCR.1.1 TDD

3

CCR.2.1 TDD

OCNG PatternsNote1

1,2,3

OP.1

OP.1

SSB configuration

1,2

SSB.1 FR1

SSB.2 FR2

3

SSB.2 FR1

SMTC configuration

1,2,3

SMTC.2

SMTC.1

Correlation Matrix and Antenna config

1,2,3

1×2 Low

1×2 Low

EPRE ratio of PSS to SSS

dB

1,2,3

0

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

EPRE ratio of OCNG DMRS to SSS

EPRE ratio of OCNG to OCNG DMRS

Noc Note2

dBm/ 15kHz

1,2,3

-98

N/A

-98

Noc Note2

dBm/SCS

1,2

-98

N/A

-89

3

-95

Ês/Iot

dB

1,2,3

5

5

Ês/Noc

dB

1,2,3

5

5

SS-RSRPNote3,4

dBm/SCS

1,2

-93

N/A

-84

3

-90

IoNote3,4

dBm/
9.36 MHz

1,2

-63.85

dBm/
38.16 MHz

3

-57.76

dBm/
95.04 MHz

1,2,3

N/A

-53.82

Propagation Condition

1,2,3

AWGN

AWGN

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: SS-RSRP and Io levels have been derived from other parameters for information purposes. They are not settable parameters themselves. SS-RSRP minimum requirements are specified assuming independent interference and noise at each receiver antenna port.

Note 4: Equivalent power received by an antenna with 0dBi gain at the centre of the quiet zone.

Note 5: Information about types of UE beam is given in B.2.1.3 and does not limit UE implementation or test system implementation.

A.7.5.7.1.2 Test Requirements

The UE shall transmit the PRACH preamble to PSCell at latest 112 ms into T3.

The UE shall transmit at least one periodic CSI report for PSCell during T4.

The UE shall stop transmitting CSI reports for PSCell at latest 20 ms into T5.

All of the above test requirements shall be fulfilled in order for the observed PSCell addition and release delay to be counted as correct. The rate of correct events observed during repeated tests shall be at least 90%.

A.7.5.7.2 Addition and Release Delay of unknown NR PSCell

A.7.5.7.2.1 Test Purpose and Environment

The purpose of this test is to verify the PSCell addition and release delay requirements defined in clauses 8.9.2 and 8.9.3, respectively, for the case where the PSCell is unknown to the UE at the time of addition.

The supported test configurations are given in Table A.7.5.7.2.1-1. The test scenario comprises two NR cells, Cell 1 and Cell 2, on radio channel 1 in FR1 and radio channel 2 in FR2, respectively. Test parameters are given in Tables A.7.5.7.2.1-2 and A.7.5.7.2.1-3 below. The test consists of four time periods with durations T1, T2, T3 and T4, respectively.

At the start of T1, the UE shall be connected to Cell 1 (PCell) on radio channel 1 (PCC) and shall only monitor PCC and hence be unaware of Cell 2 (PSCell-to-be) on radio channel 2. At the end of T1, the test system shall send a RRC message instructing the UE to add PSCell (Cell 2), and further instructing the UE to report CSI periodically in the PSCell once it has been added. Reception by the UE of this RRC message defines the start of T2.

During T2, the UE shall identify PSCell and carry out random access towards the PSCell. Reception by the test system of the PRACH preamble defines the start of T3.

During T3, the UE shall send periodic CSI reports in PSCell. After having received at least one such report, the test system shall send a RRC message instructing the UE to release the PSCell. Reception by the UE of the RRC message defines the start of T4.

During T4, the UE shall release the PSCell.

Table A.7.5.7.2.1-1: Supported test configurations for FR2 PSCell

Config

Description

1

FR1 FDD SSB SCS 15kHz BW 10MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

2

FR1 TDD SSB SCS 15kHz BW 10MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

3

FR1 TDD SSB SCS 30kHz BW 40MHz – FR2 TDD SSB SCS 240kHz BW 100MHz

Note 1: The UE is only required to be tested in one of the supported test configurations

Table A.7.5.7.2.1-2: General test parameters for PSCell addition and release delay

Parameter

Unit

Value

Comment

RF Channel Number

1, 2

Two radio channels are used for this test

Active PCell

Cell 1

PCell on RF channel number 1 in FR1

Neighbour cell

Cell 2

Neighbour cell (PSCell-to-be) on RF channel number 2 in FR2

DRX

OFF

For both PCell and PSCell once activated

PRACH configuration in Cell 2

FR2 PRACH configuration 2

PRACH configuration as specified in Clause A.3.8.3.2.

CSI reporting periodicity and offset configuration for Cell 2

ms

[2]

T1

s

5

During this time the PCell is known and Cell 2 is unknown.

T2

s

1

During this time the UE adds the PSCell.

T3

s

1

During this time the UE sends CSI reports for PSCell.

T4

s

1

During this time the UE releases the PSCell.

Table A.7.5.7.2.1-3: NR Cell specific test parameters for PSCell addition and release delay

Parameter

Unit

Config

Cell 1

Cell2

T1

T2

T3

T4

AoA setup

1,2,3

N/A

Setup 2a according to clause A.3.15.2.1

Assumption for UE beams Note 5

N/A

Rough

Frequency Range

1,2,3

FR1

FR2

Duplex mode

1

FDD

TDD

2,3

TDD

TDD configuration

1

TDDConf.3.1

2

TDDConf.1.1

3

TDDConf.2.1

BWchannel

MHz

1,2

10: NRB,c = 52

100: NRB,c = 66

3

40: NRB,c = 106

Initial Downlink BWP configuration

1,2,3

DLBWP.0.1

DLBWP.0.1

Initial Uplink BWP configuration

1,2,3

ULBWP.0.1

ULBWP.0.1

Dedicated Downlink BWP configuration

1,2,3

DLBWP.1.1

DLBWP.1.1

Dedicated Uplink BWP configuration

1,2,3

ULBWP.1.1

ULBWP.1.1

PDSCH Reference Measurement Channel

1

SR.1.1 FDD

SR.3.1 TDD

2

SR.1.1 TDD

3

SR.2.1 TDD

TRS configuration

1,2,3

TRS.2.1 TDD

TCI state

1,2,3

TCI.State.0

RMSI CORESET parameters

1

CR.1.1 FDD

CR.3.1 TDD

2

CR.1.1 TDD

3

CR.2.1 TDD

Dedicated CORESET parameters

1

CCR.1.1 FDD

CCR.3.1 TDD

2

CCR.1.1 TDD

3

CCR.2.1 TDD

OCNG PatternsNote1

1,2,3

OP.1

OP.1

SSB configuration

1,2

SSB.1 FR1

SSB.2 FR2

3

SSB.2 FR1

SMTC configuration

1,2,3

SMTC.2

SMTC.1

Correlation Matrix and Antenna config

1,2,3

1×2 Low

1×2 Low

EPRE ratio of PSS to SSS

dB

1,2,3

0

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

EPRE ratio of OCNG DMRS to SSS

EPRE ratio of OCNG to OCNG DMRS

Noc Note2

dBm/ 15kHz

1,2,3

-98

N/A

-98

Noc Note2

dBm/SCS

1,2

-98

N/A

-89

3

-95

Ês/Iot

dB

1,2,3

5

5

Ês/Noc

dB

1,2,3

5

5

SS-RSRPNote3,4

dBm/SCS

1,2

-93

N/A

-84

3

-90

IoNote3,4

dBm/
9.36 MHz

1,2

-63.85

dBm/
38.16 MHz

3

-57.76

dBm/
95.04 MHz

1,2,3

N/A

-53.82

Propagation Condition

1,2,3

AWGN

AWGN

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: SS-RSRP and Io levels have been derived from other parameters for information purposes. They are not settable parameters themselves. SS-RSRP minimum requirements are specified assuming independent interference and noise at each receiver antenna port.

Note 4: Equivalent power received by an antenna with 0dBi gain at the centre of the quiet zone.

Note 5: Information about types of UE beam is given in B.2.1.3 and does not limit UE implementation or test system implementation.

A.7.5.7.2.2 Test Requirements

The UE shall transmit the PRACH preamble to PSCell at latest 572 ms into T2.

The UE shall transmit at least one periodic CSI report for PSCell during T3.

The UE shall stop transmitting CSI reports for PSCell at latest 20 ms into T4.

All of the above test requirements shall be fulfilled in order for the observed PSCell addition and release delay to be counted as correct. The rate of correct events observed during repeated tests shall be at least 90%.