6.3.3 Transmit ON/OFF time mask

38.521-23GPPNRPart 2: Range 2 StandaloneRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification

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

6.3.3.1 General

The transmit ON/OFF time mask defines the transient period(s) allowed

– between transmit OFF power and transmit ON power symbols (transmit ON/OFF)

– between continuous ON-power transmissions when power change or RB hopping is applied.

In case of RB hopping, transition period is shared symmetrically.

Unless otherwise stated the minimum requirements in clause 6.5 apply also in transient periods.

The transmit ON/OFF time mask is defined as a directional requirement. The requirement is verified in beam locked mode at beam peak direction. The maximum allowed EIRP OFF power level is -30dBm at beam peak direction. The requirement is verified with the test metric of EIRP (Link=TX beam peak direction, Meas=Link angle).

In the following sub-clauses, following definitions apply:

– A slot transmission is a Type A transmission.

– A long subslot transmission is a Type B transmission with more than 2 symbols.

– A short subslot transmission is a Type B transmission with 1 or 2 symbols.

6.3.3.2 General ON/OFF time mask

Editor’s Note: The following aspects are either missing or not yet determined:

Measurement Uncertainty and Test Tolerances are FFS for power class 1, 2 and 4.
Measurement Uncertainty and Test Tolerances are FFS for band n259.

6.3.3.2.1 Test purpose

To verify that the general ON/OFF time mask meets the requirements given in 6.3.3.2.5.

The transmit ON/OFF time mask defines the transient period(s) allowed

– between transmit OFF power and transmit ON power symbols (transmit ON/OFF)

Unless otherwise stated the minimum requirements in clause 6.5 apply also in transient periods.

Transmission of the wrong power increases interference to other channels, or increases transmission errors in the uplink channel.

6.3.3.2.2 Test applicability

This test case applies to all types of NR UE release 15 and forward.

6.3.3.2.3 Minimum conformance requirements

The general ON/OFF time mask defines the observation period allowed between transmit OFF and ON power. ON/OFF scenarios include: contiguous, and non-contiguous transmission, etc.

The OFF power measurement period is defined in a duration of at least one slot excluding any transient periods. The ON power is defined as the mean power over one slot excluding any transient period.

Figure 6.3.3.2.3-1: General ON/OFF time mask for NR UL transmission in FR2

The normative reference for this requirement is TS 38.101-2 [3] clause 6.3.3.2.

6.3.3.2.4 Test description

6.3.3.2.4.1 Initial condition

Initial conditions are a set of test configurations the UE needs to be tested in and the steps for the SS to take with the UE to reach the correct measurement state.

The initial test configurations consist of environmental conditions, test frequencies, test channel bandwidths and sub-carrier spacing based on NR operating bands specified in Table 5.2-1. All of these configurations shall be tested with applicable test parameters for each combination of test channel bandwidth and sub-carrier spacing, and are shown in Table 6.3.3.2.4.1-1. The details of the uplink reference measurement channels (RMCs) are specified in Annexes A.2. Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.

Table 6.3.3.2.4.1-1: Test Configuration Table

Initial Conditions
Test Environment as specified in TS 38.508-1 [10] subclause 4.1		Normal, TL, TH
Test Frequencies as specified in TS 38.508-1 [10] subclause 4.3.1		Low range, Mid range, High range
Test Channel Bandwidths as specified in TS 38.508-1 [10] subclause 4.3.1		Lowest, Mid, Highest
Test SCS as specified in Table 5.3.5-1.		Highest
Test Parameters
	Downlink Configuration	Uplink Configuration
Test ID	–	Modulation	RB allocation (NOTE 1)
1		DFT-s-OFDM QPSK	Inner_Full
NOTE 1: The specific configuration of each RB allocation is defined in Table 6.1-1 for PC2, PC3 and PC4 or Table 6.1-2 for PC1.

1. Connection between SS and UE is shown in TS 38.508-1 [10] Annex A Figure A.3.3.1.1 for TE diagram and Figure A.3.4.1.1 for UE diagram.

2. The parameter settings for the cell are set up according to TS 38.508-1 [10] subclause 4.4.3.

3. Downlink signals are initially set up according to Annex C, and uplink signals according to Annex G.

4. The UL Reference Measurement Channels are set according to Table 6.3.3.2.4.1-1.

5. Propagation conditions are set according to Annex B.0.

6. Ensure the UE is in State RRC_CONNECTED with generic procedure parameters Connectivity NR, Connected without release On, Test Mode On and Test Loop Function On according to TS 38.508-1 [10] clause 4.5. Message contents are defined in clause 6.3.3.2.4.3.

6.3.3.2.4.2 Test procedure

1. SS sends uplink scheduling information for each UL HARQ process via PDCCH DCI format 0_1 for C_RNTI to schedule the UL RMC according to Table 6.3.3.2.4.1-1. Since the UE has no payload and no loopback data to send the UE sends uplink MAC padding bits on the UL RMC. The UL assignment is such that the UE transmits on slot 37 for 60kHz SCS and on slot 74 for 120kHz SCS.

2. Set the UE in the Inband Tx beam peak direction found with a 3D EIRP scan as performed in Annex K.1.1. Allow at least BEAM_SELECT_WAIT_TIME (NOTE 1) for the UE Tx beam selection to complete.

3. Send continuously uplink power control "up" commands in every uplink scheduling information to the UE; allow at least 200 msec starting from the first TPC command in this step to ensure that the UE transmits at its maximum output power. Allow at least BEAM_SELECT_WAIT_TIME (NOTE 1) for the UE Tx beam selection to complete.

4. SS activates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.2 using condition Tx only.

5. ON power sub test:

5.1. For UE transmission ON power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.2.5-2. EIRP test procedure is defined in Annex K. The period of the measurement shall be one slot with PUSCH transmission. EIRP is calculated considering both polarizations, theta and phi. For TDD, only slots consisting of only UL symbols are under test.

6. OFF power sub test:

6.1. For UE transmission OFF power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.2.5-1. EIRP test procedure is defined in Annex K.1.3. The period of the measurement shall be the slot prior to the PUSCH transmission, excluding a transient period of 5 µs in the end of the slot and any DL periods. EIRP is calculated considering both polarizations, theta and phi.

6.2. For UE transmission OFF power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.2.5-1. EIRP test procedure is defined in Annex K.1.3 The period of the measurement shall be the slot following the PUSCH transmission, excluding a transient period of 5 µs at the beginning of the slot and any DL periods. EIRP is calculated considering both polarizations, theta and phi.

7. SS deactivates the UE Beamlock Function (UBF) by performing the procedure as specified in TS 38.508-1 [10] clause 4.9.3.

NOTE 1: The BEAM_SELECT_WAIT_TIME default value is defined in Annex K.1.1.

6.3.3.2.4.3 Message contents

Message contents are according to TS 38.508-1 [10] subclause 4.6 with TRANSFORM_PRECODER_ENABLED condition in Table 4.6.3-118 PUSCH-Config.

Table 6.3.3.2.4.3-1: Void

Table 6.3.3.2.4.3-2: Void

Table 6.3.3.2.4.3-3: Void

6.3.3.2.5 Test requirement

The requirement for the EIRP measured in steps 5 and 6 of the test procedure shall not exceed the values specified in Table 6.3.3.2.5-1 and 6.3.3.2.5-2.

Table 6.3.3.2.5-1: Test requirement of OFF power of General ON/OFF time mask

	Channel bandwidth / minimum output power / measurement bandwidth
	50 MHz	100 MHz	200 MHz	400 MHz
Transmit OFF power	≤ -30+TT+R dBm
Transmission OFF Measurement bandwidth	47.58 MHz	95.16 MHz	190.20 MHz	380.28 MHz
NOTE 1: Core requirement cannot be tested due to testability issue and test requirement includes relaxation to achieve impact from test system noise to measurement result = 1.0 dB (Minimum requirement + relaxation R). NOTE 2: Relaxation R is specified in Table 6.3.3.2.5-5. NOTE 3: TT = 0 dB.

Table 6.3.3.2.5-2: Test requirement of ON power of General ON/OFF time mask

	Channel bandwidth / measurement bandwidth
	50 MHz	100 MHz	200 MHz	400 MHz
Transmit ON power	Same as the EIRP requirements described in 6.2.1.1.5
NOTE 1: Void.

Table 6.3.3.2.5-3: Void

Table 6.3.3.2.5-4: Void

Table 6.3.3.2.5-5: Relaxation required for OFF power for PC1 and PC3 UEs

Operating band	50 MHz	100 MHz	200 MHz	400 MHz
n257, n258, n261	EIRP – 1 dB	EIRP + 2 dB	EIRP + 5 dB	EIRP + 8 dB
n260	EIRP + 2 dB	EIRP + 5 dB	EIRP + 8 dB	EIRP + 11 dB
NOTE 1: EIRP is measured value in the ON power sub test, and the unit is dBm.

6.3.3.3 Transmit power time mask for slot and short or long subslot boundaries

No test case details are specified. Current test procedures for time masks are based on power measurement in relatively long period compared with transient period. For time masks between 2 active time slots with different power level, the test procedure can’t provide enough resolution to identify non-conformant UEs. Therefore the minimum requirement is not testable.

6.3.3.4 PRACH time mask

Editor’s Notes: This clause is incomplete. The following aspects are either missing or not yet determined:

– Message contents are not complete

– Measurement uncertainty and Test tolerance are not complete

– Test requirements are not complete

– PRACH configuration index is not complete

– The further investigation is essential that how does beamforming affect the initial access procedure

– TP analysis is FFS.

6.3.3.4.1 Test purpose

To verify that the PRACH time mask meets the requirements given in 6.3.3.4.5.

The time mask for PRACH time mask defines the transient period(s) allowed between transmit OFF power and transmit ON power when transmitting the PRACH.

Transmission of the wrong power increases interference to other channels, or increases transmission errors in the uplink channel.

6.3.3.4.2 Test applicability

This test case applies to all types of NR UE release 15 and forward.

6.3.3.4.3 Minimum conformance requirements

The PRACH ON power is specified as the mean power over the PRACH measurement period excluding any transient periods as shown in Figure 6.3.3.4.3-1. The measurement period for different PRACH preamble format is specified in Table 6.3.3.4.3-1.

Table 6.3.3.4.3-1: PRACH ON power measurement period

Format	SCS	Measurement period
A₁	60 kHz	0.035677 ms
A₁	120 kHz	0.017839 ms
A₂	60 kHz	0.071354 ms
A₂	120 kHz	0.035677 ms
A₃	60 kHz	0.107031 ms
A₃	120 kHz	0.053516 ms
B₁	60 kHz	0.035091 ms
B₁	120 kHz	0.0175455 ms
B₄	60 kHz	0.207617 ms
B₄	120 kHz	0.103809 ms
A₁/B₁	60 kHz	0.035677 ms for front X1 occasion 0.035091 ms for last occasion X1 = [2,5]
A₁/B₁	120 kHz	0.017839 ms for front X1occasion 0.017546 ms for last occasion X1 = [2,5]
A₂/B₂	60 kHz	0.071354 ms for front X2 occasion 0.069596 ms for last occasion X2 = [1,2]
A₂/B₂	120 kHz	0.035677 ms for front X2 occasion 0.034798 ms for last occasion X2 = [1,2]
A₃/B₃	60 kHz	0.107031 ms for first occasion 0.104101 ms for second occasion
A₃/B₃	120 kHz	0.053515 ms for first occasion 0.052050 ms for second occasion
C₀	60 kHz	0.026758 ms
C₀	120 kHz	0.013379 ms
C₂	60 kHz	0.083333 ms
C₂	120 kHz	0.0416667 ms
NOTE: For PRACH on PRACH occasion start from begin of 0ms or 0.5ms boundary, the measurement period will plus 0.032552μs

Figure 6.3.3.4.3-1: PRACH ON/OFF time mask

The normative reference for this requirement is TS 38.101-2 [3] clause 6.3.3.4.

6.3.3.4.4 Test description

6.3.3.4.4.1 Initial condition

Initial conditions are a set of test configurations the UE needs to be tested in and the steps for the SS to take with the UE to reach the correct measurement state.

The initial test configurations consist of environmental conditions, test frequencies, test channel bandwidths and sub-carrier spacing based on NR operating bands specified in Table 5.3.5-1. All of these configurations shall be tested with applicable test parameters for each combination of test channel bandwidth and sub-carrier spacing, and are shown in Table 6.3.3.4.4.1-1. The details of the uplink reference measurement channels (RMCs) are specified in Annexes A.2. Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.

Table 6.3.3.4.4.1-1: Test Configuration Table

Initial Conditions
Test Environment as specified in TS 38.508-1 [10] subclause 4.1	Normal, TL, TH
Test Frequencies as specified in TS 38.508-1 [10] subclause 4.3.1	Mid range
Test Channel Bandwidths as specified in TS 38.508-1 [10] subclause 4.3.1	Lowest, Mid, Highest
Test SCS as specified in Table 5.3.5-1	SCS defined in TS 38.211 [8] subclause 6.3.3.2
PRACH preamble format
PRACH Configuration Index	[0]

1. Connection between SS and UE is shown in TS 38.508-1 [10] Annex A, Figure A.3.3.1.1 for TE diagram and Figure A.3.4.1.1 for UE diagram.

2. The parameter settings for the cell are set up according to TS 38.508-1 [10] subclause 4.4.3.

3. Downlink signals are initially set up according to Annex C, and uplink signals according to Annex G.

4. Propagation conditions are set according to Annex B.0.

5. Ensure the UE is in State RRC_CONNECTED with generic procedure parameters Connectivity NR, Connected without release On, Test Mode On and Test Loop Function On according to TS 38.508-1 [10] clause 4.5. Message contents are defined in clause 6.3.3.4.4.3.

6.3.3.4.4.2 Test procedure

1. Set the UE in the Tx beam peak direction found with a 3D EIRP scan as performed in Annex K.1.1. Allow at least BEAM_SELECT_WAIT_TIME (NOTE 1) for the UE Tx beam selection to complete.

2. The SS shall signal a Random Access Preamble ID via a PDCCH order to the UE and initiate a Non-contention based Random Access procedure.

3. The UE shall send the signalled preamble to the SS.

4. For UE transmission OFF power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.4.5-1. EIRP test procedure is defined in Annex K.1.3. The period of the measurement shall be the slot prior to the PRACH transmission, excluding a transient period of 5 µs in the end of the slot and any DL periods. EIRP is calculated considering both polarizations, theta and phi.

5. For UE transmission ON power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.4.5-1. EIRP test procedure is defined in Annex K.1.3. The period of the measurement shall be the slot during the PRACH preamble transmission. EIRP is calculated considering both polarizations, theta and phi. For TDD, only slots consisting of only UL symbols are under test.

6. For UE transmission OFF power, measure UE EIRP in the Tx beam peak direction in the channel bandwidth of the radio access mode according to the test configuration, which shall meet the requirements described in Table 6.3.3.2.5-1. EIRP test procedure is defined in Annex K.1.3. The period of the measurement shall be the slot following the PUSCH transmission, excluding a transient period of 5 µs at the beginning of the slot and any DL periods. EIRP is calculated considering both polarizations, theta and phi.

NOTE 1: The BEAM_SELECT_WAIT_TIME default value is defined in Annex K.1.1.

6.3.3.4.4.3 Message contents

Message contents are according to TS 38.508-1 [10] subclause 4.6 with following exceptions:

Table 6.3.3.4.4.3-1: RACH-ConfigCommon: PRACH measurement

Derivation Path: TS 38.508-1[5], Table 4.6.3-128
Information Element	Value/remark	Comment	Condition
RACH-ConfigCommon::= SEQUENCE {
rach-ConfigGeneric	RACH-ConfigGeneric
totalNumberOfRA-Preambles	Not present
ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE {
one	n4		FR2
}
groupBconfigured	Not present
ra-ContentionResolutionTimer	sf64
rsrp-ThresholdSSB	RSRP-Range
rsrp-ThresholdSSB-SUL	Not present
	RSRP-Range		SUL
prach-RootSequenceIndex CHOICE {
l139	Set according to table 4.4.2-2 for the NR Cell.		PRACH Format A3
}
msg1-SubcarrierSpacing	SubcarrierSpacing
restrictedSetConfig	unrestrictedSet
msg3-transformPrecoder	Not present	transform precoding is disabled for Msg3 PUSCH transmission and any PUSCH transmission scheduled with DCI format 0_0
}

Table 6.3.3.4.4.3-2: RACH-ConfigGeneric: PRACH measurement

Derivation Path: TS 38.508-1[5], Table 4.6.3-130
Information Element	Value/remark	Comment	Condition
RACH-ConfigGeneric ::= SEQUENCE {
prach-ConfigurationIndex	[TBD]	Unpaired Spectrum	PRACH Format A3
msg1-FDM	one		FR2
msg1-FrequencyStart	0
zeroCorrelationZoneConfig	15
preambleReceivedTargetPower	[TBD]		PRACH Format A3
preambleTransMax	n7
powerRampingStep	dB0
ra-ResponseWindow	sl20
}

Table 6.3.3.4.4.3-3: ServingCellConfigCommonSIB: PRACH measurement

Derivation Path: TS 38.508-1[5], Table 4.6.3-169
Information Element	Value/remark	Comment	Condition
ServingCellConfigCommonSIB ::= SEQUENCE {
ssb-PositionsInBurst SEQUENCE {
inOneGroup	‘1000 0000’B
groupPresence	Not present
}
ss-PBCH-BlockPower	[TBD]
}

6.3.3.4.5 Test requirement

The requirement for the power measured in steps 4, 5 and 6 of the test procedure shall not exceed the values specified in Table 6.3.3.4.5-1.

Table 6.3.3.4.5-1: PRACH time mask

	Channel bandwidth / Output Power [dBm] / measurement bandwidth
	50MHz	100MHz	200MHz	400MHz
Transmit OFF power	≤ -30+TT + R
Transmission OFF Measurement bandwidth	47.58 MHz	95.16 MHz	190.20 MHz	380.28 MHz
Expected PRACH Transmission ON Measured power	FFS	FFS	FFS	FFS
ON power tolerance FFS	FFS	FFS	FFS	FFS
NOTE 1: Core requirement cannot be tested due to testability issue and test requirement includes relaxation to achieve impact from test system noise to measurement result = 1.0 dB (Minimum requirement + relaxation R). NOTE 2: Relaxation R is specified in Table 6.3.3.4.5-2.

Table 6.3.3.4.5-2: Relaxations for OFF power for PC3 UEs

Operating band	50 MHz	100 MHz	200 MHz	400 MHz
n257, n258, n261	19.4 dB	22.4 dB	25.4 dB	28.4 dB
n260	21.5 dB	24.5 dB	27.5 dB	30.5 dB

Table 6.3.3.4.5-3: Relaxations for ON power

FFS

6.3.3.5 Void

6.3.3.6 SRS time mask

FFS