8.1 IAB-DU performance requirements

38.176-23GPPIntegrated Access and Backhaul (IAB) conformance testingNRPart 2: radiated conformance testingRelease 17TS

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

8.1.1 General

8.1.1.1 Scope and definitions

Radiated performance requirements specify the ability of the IAB type 1-O or IAB type 2-O to correctly demodulate radiated signals in various conditions and configurations. Radiated performance requirements are specified at the RIB.

Radiated performance requirements for the BS are specified for the fixed reference channels and propagation conditions defined in TS 38.174 [2] annex A and annex G, respectively. The requirements only apply to those FRCs that are supported by the IAB-DU.

The radiated performance requirements for IAB type 1-O and for the IAB type 2-O are limited to two OTA demodulations branches as described in clause 8.1.1.2. Conformance requirements can only be tested for 1 or 2 demodulation branches depending on the number of polarizations supported by the IAB-DU, with the required SNR applied separately per polarization.

NOTE: IAB-DU can support more than 2 demodulation branches, however OTA conformance testing can only be performed for 1 or 2 demodulation branches.

Unless stated otherwise, radiated performance requirements apply for a single carrier only. Radiated performance requirements for a IAB-DU supporting CA are defined in terms of single carrier requirements.

The method of synchronization with the TE is left to implementation. Neither the use of downlink signal configuration nor the use of proprietary means is precluded. In tests performed with signal generators a synchronization signal may be provided between the IAB-DU and the signal generator, or a common (e.g., GNSS) source may be provided to both IAB node and the signal generator, to enable correct timing of the wanted signal.

The SNR used in this clause is specified based on a single carrier and defined as:

SNR = S / N

Where:

S is the total signal energy in a slot on a RIB.

N is the noise energy in a bandwidth corresponding to the transmission bandwidth over the duration of a slot.

8.1.1.2 OTA demodulation branches

Radiated performance requirements are only specified for up to 2 demodulation branches.

If the IAB type 1-O, or the IAB type 2-O uses polarization diversity and has the ability to maintain isolation between the signals for each of the demodulation branches, then radiated performance requirements can be tested for up to two demodulation branches (i.e. 1RX or 2RX test setups). When tested for two demodulation branches, each demodulation branch maps to one polarization.

If the IAB type 1-O, or the IAB type 2-O does not use polarization diversity then radiated performance requirements can only be tested for a single demodulation branch (i.e. 1RX test setup).

8.1.1.3 Applicability rule

8.1.1.3.1 General

Unless otherwise stated, for a IAB-DU declared to support more than 2 demodulation branches (for IAB type 1-O and IAB type 2-O), the performance requirement tests for 2 demodulation branches shall apply, and the mapping between connectors and demodulation branches is up to BS implementation.

The tests requiring more than [20] dB SNR level are set to N/A in the test requirements.

8.1.1.3.2 Applicability of PUSCH performance requirements

8.1.1.3.2.1 Applicability of requirements for different subcarrier spacings

Unless otherwise stated, PUSCH requirement tests shall apply only for each subcarrier spacing declared to be supported (see D.7 in table 4.6-1).

Unless otherwise stated, if IAB-DU supports more than one SCS then PUSCH requirement tests with highest modulation order (see D.109 in table 4.6-1) shall apply only with lowest supported SCS and PUSCH requirement tests with other modulation orders (see D.109 in table 4.6-1) shall apply only with highest supported SCS. Otherwise, all modulation orders are tested on supported SCS.

8.1.1.3.2.2 Applicability of requirements for different channel bandwidths

For each subcarrier spacing declared to be supported, the test requirements for a specific channel bandwidth shall apply only if the IAB-DU supports it (see D.7 in table 4.6-1).

Unless otherwise stated, for each subcarrier spacing declared to be supported, the tests shall be done only for the widest supported channel bandwidth. If performance requirement is not specified for this widest supported channel bandwidth, the tests shall be done by using performance requirement for the closest channel bandwidth lower than this widest supported bandwidth; the tested PRBs shall then be centered in this widest supported channel bandwidth.

8.1.1.3.2.3 Applicability of requirements for different configurations

Unless otherwise stated, for IAB type 1-O, PUSCH requirement tests shall apply only for the mapping type declared to be supported (see D.100 in table 4.6-1). If both mapping type A and type B are declared to be supported, the tests shall be done for either type A or type B; the same chosen mapping type shall then be used for all tests.

Unless otherwise stated, for IAB type 2-O, PUSCH requirement tests shall apply only for the additional DM-RS position declared to be supported (see D.101 in table 4.6-1). If both options (i.e., pos0 and pos1) are declared to be supported, the tests shall be done for pos1.

Unless otherwise stated, for IAB type 2-O, PUSCH requirement tests with transform precoding disabled shall apply for the PT-RS option declared to be supported (see D.106 in table 4.6-1). If both PT-RS options (without and with PT-RS) are declared to be supported, the tests shall be done for either without or with PT-RS only; the same chosen option shall then be used for all tests.

Unless otherwise stated, for IAB type 2-O, PUSCH requirement tests with transform precoding enabled shall be done for without PT-RS.

8.1.1.3.2.4 Applicability of requirements for uplink carrier aggregation

The tests for uplink carrier aggregation shall be carried out according to the declaration (see D.108 in table 4.6-1).

Unless otherwise stated, the tests for uplink carrier aggregation shall apply only for PUSCH with transform precoding disabled, and shall be conducted on per component carrier basis.

8.1.1.3.2.5 Applicability of requirements for TDD with different UL-DL patterns

Unless otherwise stated, for each subcarrier spacing declared to be supported, if IAB-DU supports multiple TDD UL-DL patterns, only one of the supported TDD UL-DL patterns shall be used for all tests.

8.1.1.3.2.6 Applicability of requirements for transform precoding

Unless otherwise stated, the tests with transform precoding enabled shall apply only, if the IAB-DU supports it (see D.110 in table 4.6-1).

8.1.1.3.3 Applicability of PUCCH performance requirements

8.1.1.3.3.1 Applicability of requirements for different formats

Unless otherwise stated, PUCCH requirement tests shall apply only for each PUCCH format declared to be supported (see D.102 in table 4.6-1).

8.1.1.3.3.2 Applicability of requirements for different subcarrier spacings

Unless otherwise stated, PUCCH requirement tests shall apply only for each subcarrier spacing declared to be supported (see D.7 in table 4.6-1). If multiple subcarrier spacings are declared to be supported, each supported PUCCH format can be tested on one subcarrier spacing.

8.1.1.3.3.3 Applicability of requirements for different channel bandwidths

For each subcarrier spacing declared to be supported by the IAB-DU, the test requirements for a specific channel bandwidth shall apply only if the IAB-DU supports it (see D.7 in table 4.6-1).

8.1.1.3.3.4 Applicability of requirements for different configurations

Unless otherwise stated, PUCCH format 3 requirement tests shall apply only for the additional DM-RS configuration declared to be supported (see D.104 in table 4.6-1). If both options (without and with additional DM-RS) are declared to be supported, the tests shall be done for either without or with additional DM-RS; the same chosen option shall then be used for all tests.

Unless otherwise stated, PUCCH format 4 requirement tests shall apply only for the additional DM-RS configuration declared to be supported (see D.105 in table 4.6-1). If both options (without and with additional DM-RS) are declared to be supported, the tests shall be done for either without or with additional DM-RS; the same chosen option shall then be used for all tests.

8.1.1.3.3.5 Applicability of requirements for multi-slot PUCCH

Unless otherwise stated, multi-slot PUCCH requirement tests shall apply only if the IAB-DU supports it (see D.107 in table 4.6-1).

8.1.1.3.4 Applicability of PRACH performance requirements

8.1.1.3.4.1 Applicability of requirements for different formats

Unless otherwise stated, PRACH requirement tests shall apply only for PRACH formats declared to be supported (see D.103 in table 4.6-1).

For IAB-DU declares to support more than one PRACH formats, limit the number of tests to any two cases chosen by the manufacturer. If IAB-DU declares to support more than one PRACH formats where formats for both long and short PRACH sequences are presented, require choosing formats with different sequences (see D.103 in table 4.6-1).

8.1.1.3.4.2 Applicability of requirements for different subcarrier spacings

Unless otherwise stated, for each PRACH format with short sequence declared to be supported, for each FR, the tests shall apply only for the smallest supported subcarrier spacing in the FR (see D.103 in table 4.6-1).

8.1.1.3.4.3 Applicability of requirements for different channel bandwidths

Unless otherwise stated, for the subcarrier spacing to be tested, the test requirements shall apply only for anyone channel bandwidth declared to be supported (see D.7 in table 4.6-1).

8.1.2 Performance requirements for PUSCH

8.1.2.1 Performance requirements for PUSCH with transform precoding disabled

8.1.2.1.1 Definition and applicability

The performance requirement of PUSCH is determined by a minimum required throughput for a given SNR. The required throughput is expressed as a fraction of maximum throughput for the FRCs listed in annex A. The performance requirements assume HARQ re-transmissions.

Which specific test(s) are applicable to IAB-DU is based on the test applicability rules defined in clause 8.1.1.3.2.

8.1.2.1.2 Minimum Requirement

For BS type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.2.1.1.

For BS type 2-O, the minimum requirement is in TS 38.174 [2], clause 11.1.2.2.1

8.1.2.1.3 Test purpose

The test shall verify the receiver’s ability to achieve throughput under multipath fading propagation conditions for a given SNR.

8.1.2.1.4 Method of test

8.1.2.1.4.1 Initial conditions

Test environment: Normal, see annex B.2.

RF channels to be tested for single carrier: M, see clause 4.9.1.

RF channels to be tested for carrier aggregation: M_{BW Channel CA}; see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.2.1.4.2 Procedure

1) Place the IAB-DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB-DU with the test system.

3) Set the IAB-DU in the declared direction to be tested.

4) Connect the IAB-DU tester generating the wanted signal, multipath fading simulators and AWGN generators to a test antenna via a combining network in OTA test setup, as shown in annex E.3. Each of the demodulation branch signals should be transmitted on one polarization of the test antenna(s).

5) The characteristics of the wanted signal shall be configured according to the corresponding UL reference measurement channel defined in annex A, and according to additional test parameters listed in table 8.1.2.1.4.2-1.

Table 8.1.2.1.4.2-1: Test parameters for testing PUSCH

Parameter		IAB type 1-O	IAB type 2-O
Transform precoding		Disabled
Cyclic prefix		Normal
Default TDD UL-DL pattern (Note)		15 kHz SCS: 3D1S1U, S=10D:2G:2U 30 kHz SCS: 7D1S2U, S=6D:4G:4U	60 kHz and 120kHz SCS: 3D1S1U, S=10D:2G:2U
HARQ	Maximum number of HARQ transmissions	4
	RV sequence	0, 2, 3, 1
DM-RS	DM-RS configuration type	1
	DM-RS duration	single-symbol DM-RS
	Additional DM-RS position	pos1	{pos0, pos1}
	Number of DM-RS CDM group(s) without data	2
	Ratio of PUSCH EPRE to DM-RS EPRE	-3 dB
	DM-RS port(s)	{0}, {0,1}
	DM-RS sequence generation	N_ID⁰=0, n_SCID=0
Time	PUSCH mapping type	A, B	B
domain	Start symbol	0	0
resource assignment	Allocation length	14	10
Frequency	RB assignment	Full applicable test bandwidth
domain resource assignment	Frequency hopping	Disabled
TPMI index for 2Tx two layer spatial multiplexing transmission		0
Code block group based PUSCH transmission		Disabled
PTRS	Frequency density (K_PT-RS)	N.A.	2, Disabled
configuration	Time density (L_PT-RS)	N.A.	1, Disabled
Note: The same requirements are applicable with different UL-DL patterns for IAB type 1-O and IAB type 2-O.

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.2.1.5.1 and 8.1.2.1.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB-DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.2.1.4.2-2.

Table 8.1.2.1.4.2-2: AWGN power level at the IAB-DU input

IAB-DU type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	10	-83.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-80.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30	10	-83.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-80.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-77.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-73.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 47.52 MHz
		100	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
	120	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) For reference channels applicable to the IAB-DU, measure the throughput.

8.1.2.1.5 Test Requirement

8.1.2.1.5.1 Test requirement for IAB type 1-O

The throughput measured according to clause 8.1.2.1.4.2 shall not be below the limits for the SNR levels specified in table 8.1.2.1.5.1-1 to table 8.1.2.1.5.1-14 for 1Tx and for 2Tx two layer spatial multiplexing transmission.

Table 8.1.2.1.5.1-1: Void

Table 8.1.2.1.5.1-2: Test requirements for PUSCH with 70% of maximum throughput, Type A, 10 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-2	pos1	-1.9
		TDLC300-100 Low	D-FR1-A.2.3-2	pos1	10.8
		TDLA30-10 Low	D-FR1-A.2.4-2	pos1	12.8
2	2	TDLB100-400 Low	D-FR1-A.2.1-9	pos1	2.5
		TDLC300-100 Low	D-FR1-A.2.3-9	pos1	19.1

Table 8.1.2.1.5.1-3: Test requirements for PUSCH with 70% of maximum throughput, Type A, 20 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-3	pos1	-1.5
		TDLC300-100 Low	D-FR1-A.2.3-3	pos1	10.6
		TDLA30-10 Low	D-FR1-A.2.4-3	pos1	13.0
2	2	TDLB100-400 Low	D-FR1-A2.1-10	pos1	2.9
		TDLC300-100 Low	D-FR1-A.2.3-10	pos1	19.1

Table 8.1.2.1.5.1-4: Test requirements for PUSCH with 70% of maximum throughput, Type A, 10 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-4	pos1	-1.7
		TDLC300-100 Low	D-FR1-A.2.3-4	pos1	10.8
		TDLA30-10 Low	D-FR1-A.2.4-4	pos1	13.4
2	2	TDLB100-400 Low	D-FR1-A.2.1-11	pos1	2.1
		TDLC300-100 Low	D-FR1-A.2.3-11	pos1	19.2

Table 8.1.2.1.5.1-5: Test requirements for PUSCH with 70% of maximum throughput, Type A, 20 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-5	pos1	-2.3
		TDLC300-100 Low	D-FR1-A.2.3-5	pos1	10.8
		TDLA30-10 Low	D-FR1-A.2.4-5	pos1	13.1
2	2	TDLB100-400 Low	D-FR1-A.2.1-12	pos1	2.1
		TDLC300-100 Low	D-FR1-A.2.3-12	pos1	18.9

Table 8.1.2.1.5.1-6: Test requirements for PUSCH with 70% of maximum throughput, Type A, 40 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-6	pos1	-1.9
		TDLC300-100 Low	D-FR1-A.2.3-6	pos1	10.6
		TDLA30-10 Low	D-FR1-A.2.4-6	pos1	13.0
2	2	TDLB100-400 Low	D-FR1-A.2.1-13	pos1	2.1
		TDLC300-100 Low	D-FR1-A.2.3-13	pos1	20.3

Table 8.1.2.1.5.1-7: Test requirements for PUSCH with 70% of maximum throughput, Type A, 100 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-7	pos1	-2.2
		TDLC300-100 Low	D-FR1-A.2.3-7	pos1	10.8
		TDLA30-10 Low	D-FR1-A.2.4-7	pos1	13.6
2	2	TDLB100-400 Low	D-FR1-A.2.1-14	pos1	2.2
		TDLC300-100 Low	D-FR1-A.2.3-14	pos1	20.0

Table 8.1.2.1.5.1-8: Void

Table 8.1.2.1.5.1-9: Test requirements for PUSCH with 70% of maximum throughput, Type B, 10 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-2	pos1	-1.7
		TDLC300-100 Low	D-FR1-A.2.3-2	pos1	11.1
		TDLA30-10 Low	D-FR1-A.2.4-2	pos1	13.2
2	2	TDLB100-400 Low	D-FR1-A.2.1-9	pos1	2.8
		TDLC300-100 Low	D-FR1-A.2.3-9	pos1	19.5

Table 8.1.2.1.5.1-10: Test requirements for PUSCH with 70% of maximum throughput, Type B, 20 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-3	pos1	-1.5
		TDLC300-100 Low	D-FR1-A.2.3-3	pos1	11.0
		TDLA30-10 Low	D-FR1-A.2.4-3	pos1	12.9
2	2	TDLB100-400 Low	D-FR1-A2.1-10	pos1	2.4
		TDLC300-100 Low	D-FR1-A.2.3-10	pos1	18.9

Table 8.1.2.1.5.1-11: Test requirements for PUSCH with 70% of maximum throughput, Type B, 10 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-4	pos1	-1.8
		TDLC300-100 Low	D-FR1-A.2.3-4	pos1	10.7
		TDLA30-10 Low	D-FR1-A.2.4-4	pos1	13.1
2	2	TDLB100-400 Low	D-FR1-A.2.1-11	pos1	1.9
		TDLC300-100 Low	D-FR1-A.2.3-11	pos1	19.3

Table 8.1.2.1.5.1-12: Test requirements for PUSCH with 70% of maximum throughput, Type B, 20 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-5	pos1	-2.3
		TDLC300-100 Low	D-FR1-A.2.3-5	pos1	10.7
		TDLA30-10 Low	D-FR1-A.2.4-5	pos1	13.1
2	2	TDLB100-400 Low	D-FR1-A.2.1-12	pos1	2.1
		TDLC300-100 Low	D-FR1-A.2.3-12	pos1	19.0

Table 8.1.2.1.5.1-13: Test requirements for PUSCH with 70% of maximum throughput, Type B, 40 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-6	pos1	-1.9
		TDLC300-100 Low	D-FR1-A.2.3-6	pos1	10.6
		TDLA30-10 Low	D-FR1-A.2.4-6	pos1	13.1
2	2	TDLB100-400 Low	D-FR1-A.2.1-13	pos1	2.5
		TDLC300-100 Low	D-FR1-A.2.3-13	pos1	19.5

Table 8.1.2.1.5.1-14: Test requirements for PUSCH with 70% of maximum throughput, Type B, 100 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	SNR (dB)
1	2	TDLB100-400 Low	D-FR1-A.2.1-7	pos1	-1.9
		TDLC300-100 Low	D-FR1-A.2.3-7	pos1	10.7
		TDLA30-10 Low	D-FR1-A.2.4-7	pos1	13.7
2	2	TDLB100-400 Low	D-FR1-A.2.1-14	pos1	2.4
		TDLC300-100 Low	D-FR1-A.2.3-14	pos1	20.1

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in annex C.

8.1.2.1.5.2 Test requirement for IAB type 2-O

The throughput measured according to clause 8.1.2.1.4.2 shall not be below the limits for the SNR levels specified in table 8.1.2.1.5.2-1 to 8.1.2.1.5.2-7.

Table 8.1.2.1.5.2-1: Test requirements for PUSCH with 70% of maximum throughput, 50 MHz Channel Bandwidth, 60 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	PT-RS	SNR (dB)
1	2	TDLA30-300 Low	D-FR2-A.2.1-1	pos0	No	-1.4
			D-FR2-A.2.1-13	pos1	No	-1.6
		TDLA30-300 Low	D-FR2-A.2.3-1	pos0	Yes	12.6
					No	12.1
			D-FR2-A.2.3-11	pos1	Yes	11.3
					No	11.3
		TDLA30-75 Low	D-FR2-A.2.4-1	pos0	Yes	14.3
					No	13.7
			D-FR2-A.2.4-6	pos1	Yes	14.0
					No	13.5
2		TDLA30-300 Low	D-FR2-A.2.1-6	pos0	No	2.3
			D-FR2-A.2.1-18	pos1	No	2.0
		TDLA30-300 Low	D-FR2-A.2.2-1	pos0	Yes	16.0
					No	15.1
			D-FR2-A.2.2-6	pos1	Yes	14.6
					No	13.8

Table 8.1.2.1.5.2-2: Test requirements for PUSCH with 70% of maximum throughput, 100 MHz Channel Bandwidth, 60 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	PT-RS	SNR (dB)
1	2	TDLA30-300 Low	D-FR2-A.2.1-2	pos0	No	-1.5
			D-FR2-A.2.1-14	pos1	No	-1.8
		TDLA30-300 Low	D-FR2-A.2.3-2	pos0	Yes	12.8
					No	11.8
			D-FR2-A.2.3-12	pos1	Yes	11.8
					No	11.2
		TDLA30-75 Low	D-FR2-A.2.4-2	pos0	Yes	14.8
					No	13.9
			D-FR2-A.2.4-7	pos1	Yes	14.3
					No	13.7
2		TDLA30-300 Low	D-FR2-A.2.1-7	pos0	No	2.3
			D-FR2-A.2.1-19	pos1	No	2.0
		TDLA30-300 Low	D-FR2-A.2.2-2	pos0	Yes	16.8
					No	15.7
			D-FR2-A.2.2-7	pos1	Yes	14.6
					No	13.9

Table 8.1.2.1.5.2-3: Test requirements for PUSCH with 70% of maximum throughput, 50 MHz Channel Bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	PT-RS	SNR (dB)
1	2	TDLA30-300 Low	D-FR2-A.2.1-3	pos0	No	-1.2
			D-FR2-A.2.1-15	pos1	No	-1.5
		TDLA30-300 Low	D-FR2-A.2.3-3	pos0	Yes	12.2
					No	11.5
			D-FR2-A.2.3-13	pos1	Yes	11.5
					No	11.1
		TDLA30-75 Low	D-FR2-A.2.4-3	pos0	Yes	14.3
					No	13.7
			D-FR2-A.2.4-8	pos1	Yes	13.8
					No	13.6
2		TDLA30-300 Low	D-FR2-A.2.1-8	pos0	No	2.2
			D-FR2-A.2.1-20	pos1	No	2.1
		TDLA30-300 Low	D-FR2-A.2.2-3	pos0	Yes	15.0
					No	14.4
			D-FR2-A.2.2-8	Pos1	Yes	14.7
					No	13.9

Table 8.1.2.1.5.2-4: Test requirements for PUSCH with 70% of maximum throughput, 100 MHz Channel Bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	PT-RS	SNR (dB)
1	2	TDLA30-300 Low	D-FR2-A.2.1-4	pos0	No	-1.8
			D-FR2-A.2.1-16	pos1	No	-1.9
		TDLA30-300 Low	D-FR2-A.2.3-4	pos0	Yes	12.5
					No	11.1
			D-FR2-A.2.3-14	pos1	Yes	11.7
					No	11.1
		TDLA30-75 Low	D-FR2-A.2.4-4	pos0	Yes	14.1
					No	13.5
			D-FR2-A.2.4-9	pos1	Yes	14.0
					No	13.4
2		TDLA30-300 Low	D-FR2-A.2.1-9	pos0	No	2.2
			D-FR2-A.2.1-21	pos1	No	2.0
		TDLA30-300 Low	D-FR2-A.2.2-4	pos0	Yes	14.7
					No	14.0
			D-FR2-A.2.2-9	pos1	Yes	14.3
					No	13.7

Table 8.1.2.1.5.2-5: Test requirements for PUSCH with 70% of maximum throughput, 200 MHz Channel Bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (annex J)	FRC (annex A)	Additional DM-RS position	PT-RS	SNR (dB)
1	2	TDLA30-300 Low	D-FR2-A.2.1-5	pos0	No	-1.5
			D-FR2-A.2.1-17	pos1	No	-1.8
		TDLA30-300 Low	D-FR2-A.2.3-5	pos0	Yes	11.9
					No	11.5
			D-FR2-A.2.3-15	pos1	Yes	11.8
					No	11.3
		TDLA30-75 Low	D-FR2-A.2.4-5	pos0	Yes	14.7
					No	14.0
			D-FR2-A.2.4-10	pos1	Yes	14.3
					No	13.9
2		TDLA30-300 Low	D-FR2-A.2.1-10	pos0	No	2.2
			D-FR2-A.2.1-22	pos1	No	1.9
		TDLA30-300 Low	D-FR2-A.2.2-5	pos0	Yes	14.8
					No	14.1
			D-FR2-A.2.2-10	pos1	Yes	14.4
					No	13.8

8.1.2.2 Performance requirements for PUSCH with transform precoding enabled

8.1.2.2.1 Definition and applicability

Which specific test(s) are applicable to IAB-DU is based on the test applicability rules defined in clause 8.1.1.3.2.

8.1.2.2.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.2.1.2.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2], clause 11.1.2.2.2.

8.1.2.2.3 Test Purpose

The test shall verify the receiver’s ability to achieve throughput under multipath fading propagation conditions for a given SNR.

8.1.2.2.4 Method of test

8.1.2.2.4.1 Initial Conditions

Test environment: Normal, see clause B.2.

RF channels to be tested for single carrier: M, see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.2.2.4.2 Procedure

1) Place the IAB-DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB-DU with the test system.

3) Set the IAB-DU in the declared direction to be tested.

Table 8.1.2.2.4.2-1: Test parameters for testing PUSCH

Parameter		IAB type 1-O	IAB type 2-O
Transform precoding		Enabled
Cyclic prefix		Normal
Default TDD UL-DL pattern (Note)		15 kHz SCS: 3D1S1U, S=10D:2G:2U 30 kHz SCS: 7D1S2U, S=6D:4G:4U	60 kHz and 120kHz SCS: 3D1S1U, S=10D:2G:2U
HARQ	Maximum number of HARQ transmissions	4
	RV sequence	0, 2, 3, 1
DM-RS	DM-RS configuration type	1
	DM-RS duration	single-symbol DM-RS
	Additional DM-RS position	pos1	pos0, pos1
	Number of DM-RS CDM group(s) without data	2
	Ratio of PUSCH EPRE to DM-RS EPRE	-3 dB
	DM-RS port(s)	0
	DM-RS sequence generation	N_ID⁰=0, group hopping and sequence hopping are disabled
Time	PUSCH mapping type	A, B	B
domain	Start symbol	0	0
resource assignment	Allocation length	14	10
Frequency domain resource assignment	RB assignment	15 kHz SCS: 25 PRBs in the middle of the test bandwidth 30 kHz SCS: 24 PRBs in the middle of the test bandwidth	30 PRBs in the middle of the test bandwidth
	Frequency hopping	Disabled
Code block group based PUSCH transmission		Disabled
PT-RS		Not configured
NOTE: The same requirements are applicable to TDD with different UL-DL patterns for IAB type 1-O, and IAB type 2-O.

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.2.2.5.1 and 8.1.2.2.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB-DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.2.2.4.2-2.

Table 8.1.2.2.4.2-2: AWGN power level at the BS input

IAB-DU type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	5	-86.5 – Δ_OTAREFSENS dBm / 4.5 MHz
	30	10	-83.6 – Δ_OTAREFSENS dBm / 8.64 MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS}+ 15 dBm / 47.52MHz
	120	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS}+ 15 dBm / 46.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) For reference channels applicable to the IAB-DU, measure the throughput.

8.1.2.2.5 Test Requirement

8.1.2.2.5.1 Test requirement for IAB type 1-O

The throughput measured according to clause 8.1.2.2.4.2 shall not be below the limits for the SNR levels specified in table 8.1.2.2.5.1-1 to table 8.1.2.2.5.1-4.

Table 8.1.2.2.5.1-1: Test requirements for PUSCH with 70% of maximum throughput, Type A, 5 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLB100-400 Low

D-FR1-A.2.1-15

pos1

-1.8

Table 8.1.2.2.5.1-2: Test requirements for PUSCH with 70% of maximum throughput, Type A, 10 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLB100-400 Low

D-FR1-A.2.1-16

pos1

-1.9

Table 8.1.2.2.5.1-3: Test requirements for PUSCH with 70% of maximum throughput, Type B, 5 MHz channel bandwidth, 15 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLB100-400 Low

D-FR1-A.2.1-15

pos1

-1.7

Table 8.1.2.2.5.1-4: Test requirements for PUSCH with 70% of maximum throughput, Type B, 10 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLB100-400 Low

D-FR1-A.2.1-16

pos1

-2.1

8.1.2.2.5.2 Test requirement for IAB type 2-O

The throughput measured according to clause 8.1.2.2.4.2 shall not be below the limits for the SNR levels specified in table 8.1.2.2.5.2-1 to table 8.1.2.2.5.2-2.

Table 8.1.2.2.5.2-1: Test requirements for PUSCH with 70% of maximum throughput, Type B, 50 MHz channel bandwidth, 60 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix

(annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLA30-300 Low

D-FR2-A.2.1-11

Pos0

-1.2

D-FR2-A.2.1-23

pos1

-1.3

Table 8.1.2.2.5.2-2: Test requirements for PUSCH with 70% of maximum throughput, Type B, 50 MHz channel bandwidth, 120 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix

(annex J)

FRC
(annex A)

Additional DM-RS position

SNR

(dB)

TDLA30-300 Low

D-FR2-A.2.1-12

Pos0

-1.2

D-FR2-A.2.1-24

pos1

-1.3

8.1.2.3 Performance requirements for UCI multiplexed on PUSCH

8.1.2.3.1 Definition and applicability

The performance requirement of UCI multiplexed on PUSCH is determined by two parameters: block error probability (BLER) of CSI part 1 and block error probability of CSI part 2. The performance is measured by the required SNR at block error probability of CSI part 1 not exceeding 0.1 %, and the required SNR at block error probability of CSI part 2 not exceeding 1 %.

The CSI part 1 BLER is defined as the probability of incorrectly decoding the CSI part 1 information when the CSI part 1 information is sent.

The CSI part 2 BLER is defined as the probability of incorrectly decoding the CSI part 2 information when the CSI part2 information is sent.

In the test of UCI multiplexed on PUSCH, the UCI information only contains CSI part 1 and CSI part 2 information, there is no HACK/ACK information transmitted.

The number of UCI information bit payload per slot is defined for two cases as follows:

– 7 bits: 5 bits in CSI part 1, 2 bits in CSI part 2

– 40 bits: 20 bits in CSI part 1, 20 bits in CSI part 2

The 7 bits UCI information case is further defined with the bitmap [c0 c1 c2 c3 c4] = [0 1 0 1 0] for CSI part 1 information, where c0 is mapping to the RI information, and with the bitmap [c0 c1] = [1 0] for CSI part 2 information.

The 40 bits UCI information case is assumed random information bit selection.

In both tests, PUSCH data, CSI part 1 and CSI part 2 are transmitted simultaneously.

Which specific test(s) is applicable to IAB-DU is based on the test applicability rule defined in clause 8.1.1.3.2.

8.1.2.3.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2] clause 11.1.2.1.3.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2] clause 11.1.2.2.3.

8.1.2.3.3 Test Purpose

The test shall verify the receiver’s ability to detect UCI with CSI part 1 and CSI part 2 bits multiplexed on PUSCH under multipath fading propagation conditions for a given SNR.

8.1.2.3.4 Method of test

8.1.2.3.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.2.3.4.2 Procedure

1) Place the IAB-DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB-DU with the test system.

3) Set the IAB-DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured to the corresponding UL reference measurement channel defined in annex A, and according to additional test parameters listed in table 8.1.2.3.4.2-1. The UCI information bit payload per slot is equal to 7bits with CSI part 1 5bits, CSI part 2 2bits, and the UCI information bit payload per slot is equal to 40 bits with CSI part 1 20bits, CSI part 2 20 bits.

Table: 8.1.2.3.4.2-1 Test parameters for testing UCI multiplexed on PUSCH

Parameter		IAB type 1-O	IAB type 2-O
Transform precoding		Disabled
Cyclic prefix		Normal
Default TDD UL-DL pattern (Note)		30 kHz SCS: 7D1S2U, S=6D:4G:4U	120 kHz SCS: 3D1S1U, S=10D:2G:2U
HARQ	Maximum number of HARQ transmissions	1
	RV sequence	0
DM-RS	DM-RS configuration type	1
	DM-RS duration	Single-symbol DM-RS
	Additional DM-RS position	pos1	pos0,pos1
	Number of DM-RS CDM group(s) without data	2
	Ratio of PUSCH EPRE to DM-RS EPRE	-3 dB
	DM-RS port(s)	{0}	{0}
	DM-RS sequence generation	N_ID⁰=0, n_SCID =0
Time domain	PUSCH mapping type	A,B	B
resource	Start symbol	0
assignment	Allocation length	14	10
Frequency	RB assignment	Full applicable test bandwidth
domain resource assignment	Frequency hopping	Disabled
Code block group based PUSCH transmission		Disabled
PT-RS	PT-RS	Disabled		Enabled
configuration	Frequency density (K_PT-RS)	N.A.		2
	Time density (L_PT-RS)	N.A.		1
UCI	Number of CSI part1 and CSI part2 information bit payload	{5, 2}, {20,20}
	scaling	1
	betaOffsetACK-Index1	11
	betaOffsetCSI-Part1-Index1 and betaOffsetCSI-Part1-Index2	13
	betaOffsetCSI-Part2-Index1 and betaOffsetCSI-Part2-Index2	13
	UCI partition for frequency hopping	Disabled
NOTE: The same requirements are applicable to TDD with different UL-DL patterns for IAB type 1-O and IAB type 2-O.

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.2.3.5.1 and 8.1.2.3.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the BS receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.2.3.4.2-2.

Table 8.1.2.3.4.2-2: AWGN power level at the BS input

IAB-DU type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	30	10	-83.6 – Δ_OTAREFSENS dBm / 8.64 MHz
IAB type 2-O	120	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS}= -3 dB as declared in clause 7.1, since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) The signal generator sends a test pattern where UCI with CSI part 1 and CSI part 2 information can be multiplexed on PUSCH. The following statistics are kept: the number of incorrectly decoded CSI part 1 information transmitted, the number of incorrectly decoded CSI part 2 information transmitted during UCI multiplexed on PUSCH transmission.

8.1.2.3.5 Test Requirement

8.1.2.3.5.1 Test requirement for IAB type 1-O

The fraction of incorrectly decoded UCI with CSI part 1 according to clause 8.1.2.3.4.2 shall be less than 0.1 % for the SNR listed in table 8.1.2.3.5.1-1 and table 8.1.2.3.5.1-2. The fraction of incorrectly decoded UCI with CSI part 2 according to clause 8.1.2.3.4.2 shall be less than 1 % for the SNR listed in table 8.1.2.3.5.1-3 and table 8.1.2.3.5.1-4.

Table 8.1.2.3.5.1-1: Test requirements for UCI multiplexed on PUSCH, Type A, CSI part 1, 10 MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (Annex J)

UCI bits

(CSI part 1, CSI part 2)

Additional DM-RS position

FRC

(Annex A)

SNR (dB)

TDLC300-100 Low

7 (5, 2)

pos1

D-FR1-A.2.3-4

6.0

TDLC300-100 Low

40 (20,20)

pos1

D-FR1-A.2.3-4

4.9

Table 8.1.2.3.5.1-2: Test requirements for UCI multiplexed on PUSCH, Type B, CSI part 1, 10MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (Annex J)

UCI bits

(CSI part 1, CSI part 2)

Additional DM-RS position

FRC

(Annex A)

SNR (dB)

TDLC300-100 Low

7 (5, 2)

pos1

D-FR1-A.2.3-4

6.4

TDLC300-100 Low

40 (20,20)

pos1

D-FR1-A.2.3-4

4.7

Table 8.1.2.3.5.1-3: Test requirements for UCI multiplexed on PUSCH, Type A, CSI part 2, 10MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (Annex J)

UCI bits

(CSI part 1, CSI part 2)

Additional DM-RS position

FRC

(Annex A)

SNR (dB)

TDLC300-100 Low

7 (5, 2)

pos1

D-FR1-A.2.3-4

0.4

TDLC300-100 Low

40 (20,20)

pos1

D-FR1-A.2.3-4

3.0

Table 8.1.2.3.5.1-4: Test requirements for UCI multiplexed on PUSCH, Type B, CSI part 2, 10MHz channel bandwidth, 30 kHz SCS

Number of TX antennas

Number of demodulation branches

Propagation conditions and correlation matrix (Annex J)

UCI bits

(CSI part 1, CSI part 2)

Additional DM-RS position

FRC

(Annex A)

SNR (dB)

TDLC300-100 Low

7 (5, 2)

pos1

D-FR1-A.2.3-4

0.9

TDLC300-100 Low

40 (20,20)

pos1

D-FR1-A.2.3-4

3.2

8.1.2.3.5.2 Test requirement for IAB type 2-O

The fraction of incorrectly decoded UCI with CSI part 1 measured according to clause 8.1.2.3.4.2 shall be less than 0.1 % for the SNR listed in table 8.1.2.3.5.2-1 and table 8.1.2.3.5.2-2. The fraction of incorrectly decoded UCI with CSI part 2 measured according to clause 8.1.2.3.4.2 shall be less than 1 % for the SNR listed in table 8.1.2.3.5.2-3 and table 8.1.2.3.5.2-4.

Table 8.1.2.3.5.2-1: Test requirements for UCI multiplexed on PUSCH, Type B, with PT-RS, CSI part 1, 50 MHz channel bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (Annex J)	UCI bits (CSI part 1, CSI part 2)	Additional DM-RS position	FRC (Annex A)	SNR (dB)
1	2	TDLA30-300 Low	7 (5, 2)	pos0	D-FR2-A.2.3-3	7.8
	2	TDLA30-300 Low	40 (20,20)	pos0	D-FR2-A.2.3-3	6.4
	2	TDLA30-300 Low	7 (5, 2)	pos1	D-FR2-A.2.3-13	8.4
	2	TDLA30-300 Low	40 (20,20)	pos1	D-FR2-A.2.3-13	6.5

Table 8.1.2.3.5.2-2: Test requirements for UCI multiplexed on PUSCH, Type B, without PT-RS, CSI part 1, 50MHz channel bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (Annex J)	UCI bits (CSI part 1, CSI part 2)	Additional DM-RS position	FRC (Annex A)	SNR (dB)
1	2	TDLA30-300 Low	7 (5, 2)	pos0	D-FR2-A.2.3-3	7.7
	2	TDLA30-300 Low	40 (20,20)	pos0	D-FR2-A.2.3-3	6.4
	2	TDLA30-300 Low	7 (5, 2)	pos1	D-FR2-A.2.3-13	7.9
	2	TDLA30-300 Low	40 (20,20)	pos1	D-FR2-A.2.3-13	6.1

Table 8.1.2.3.5.2-3: Test requirements for UCI multiplexed on PUSCH, Type B, with PT-RS, CSI part 2, 50 MHz channel bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (Annex J)	UCI bits (CSI part 1, CSI part 2)	Additional DM-RS position	FRC (Annex A)	SNR (dB)
1	2	TDLA30-300 Low	7 (5, 2)	pos0	D-FR2-A.2.3-3	1.7
	2	TDLA30-300 Low	40 (20,20)	pos0	D-FR2-A.2.3-3	4.6
	2	TDLA30-300 Low	7 (5, 2)	pos1	D-FR2-A.2.3-13	1.9
	2	TDLA30-300 Low	40 (20,20)	pos1	D-FR2-A.2.3-13	4.6

Table 8.1.2.3.5.2-4: Test requirements for UCI multiplexed on PUSCH, Type B, Without PT-RS, CSI part 2, 50MHz channel bandwidth, 120 kHz SCS

Number of TX antennas	Number of demodulation branches	Propagation conditions and correlation matrix (Annex J)	UCI bits (CSI part 1, CSI part 2)	Additional DM-RS position	FRC (Annex A)	SNR (dB)
1	2	TDLA30-300 Low	7 (5, 2)	pos0	D-FR2-A.2.3-3	1.7
	2	TDLA30-300 Low	40 (20,20)	pos0	D-FR2-A.2.3-3	4.5
	2	TDLA30-300 Low	7 (5, 2)	pos1	D-FR2-A.2.3-13	1.8
	2	TDLA30-300 Low	40 (20,20)	pos1	D-FR2-A.2.3-13	4.3

8.1.3 Performance requirements for PUСCH

8.1.3.1 Performance requirements for PUCCH format 0

8.1.3.1.1 Definition and applicability

The performance requirement of single user PUCCH format 0 for ACK missed detection is determined by the two parameters: probability of false detection of the ACK and the probability of detection of ACK. The performance is measured by the required SNR at probability of detection equal to 0.99. The probability of false detection of the ACK shall be 0.01 or less.

The probability of false detection of the ACK is defined as a conditional probability of erroneous detection of the ACK when input is only noise.

The probability of detection of ACK is defined as conditional probability of detection of the ACK when the signal is present.

The transient period as specified in TS 38.101-1 [16] clause 6.3.3.1 and TS 38.101-2 [17] clause 6.3.3.1 is not taken into account for performance requirement testing, where the RB hopping is symmetric to the CC center, i.e. intra-slot frequency hopping is enabled.

Which specific test(s) are applicable to IAB-DU is based on the test applicability rules defined in clause 8.1.1.3.3.

8.1.3.1.2 Minimum Requirement

For IAB type 1-O, the minimum requirements are in TS 38.174 [2] clause 11.3.1.1 and 11.1.3.1.2.

For IAB type 2-O, the minimum requirements are in TS 38.174 [2] clause 11.3.2.1 and 11.1.3.2.2.

8.1.3.1.3 Test Purpose

The test shall verify the receiver’s ability to detect ACK under multipath fading propagation conditions for a given SNR.

8.1.3.1.4 Method of test

8.1.3.1.4.1 Initial Conditions

Test environment: Normal, see annex B.2.

RF channels to be tested: single carrier M; see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.1.4.2 Procedure

1) Place the IAB-DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB-DU with the test system.

3) Set the IAB-DU in the declared direction to be tested.

4) Connect the BS tester generating the wanted signal, multipath fading simulators and AWGN generators to a test antenna via a combining network in OTA test setup, as shown in annex E.3. Each of the demodulation branch signals should be transmitted on one polarization of the test antenna(s).

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7] and according to additional test parameters listed in table 8.1.3.1.4.2-1.

Table 8.1.3.1.4.2-1: Test parameters

Parameter	IAB type 1-O	IAB type 2-O
number of UCI information bits	1	1
Number of PRBs	1	1
First PRB prior to frequency hopping	0	0
Intra-slot frequency hopping	N/A for 1 symbol Enabled for 2 symbols	N/A for 1 symbol Enabled for 2 symbols
First PRB after frequency hopping	The largest PRB index – (number of PRBs – 1)	The largest PRB index – (number of PRBs – 1)
Group and sequence hopping	neither	neither
Hopping ID	0	0
Initial cyclic shift	0	0
First symbol	13 for 1 symbol 12 for 2 symbols	13 for 1 symbol 12 for 2 symbols
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.2.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.3.1.5.1 and 8.1.3.1.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB-DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level quoted in table 8.1.3.1.4.2-2.

Table 8.1.3.1.4.2-2: AWGN power level at the IAB-DU input

IAB-DU type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 47.52 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
	120	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1 since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_REFSENS_50M as declared in D.28 in table 4.6-1.

8) The signal generator sends a test pattern with the pattern outlined in figure 8.1.3.1.4.2-1. The following statistics are kept: the number of ACKs detected in the idle periods and the number of missed ACKs.

Figure 8.1.3.1.4.2-1: Test signal pattern for single user PUCCH format 0 demodulation tests

8.1.3.1.5 Test Requirement

8.1.3.1.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACKs shall be less than 1% and the fraction of correctly detected ACKs shall be larger than 99% for the SNR listed in table 8.1.3.1.5.1-1 and in table 8.1.3.1.5.1-2.

Table 8.1.3.1.5.1-1: Test requirements for PUCCH format 0 and 15 kHz SCS

Number	Number of	Propagation conditions and	Number of	Channel bandwidth / SNR (dB)
Number	Number of	Propagation conditions and	Number of	Channel bandwidth / SNR (dB)
of TX antennas	demodulation branches	correlation matrix (annex J)	OFDM symbols	10 MHz	20 MHz
1	2	TDLC300-100 Low	1	9.4	9.9
			2	4.3	3.9

Table 8.1.3.1.5.1-2: Test requirements for PUCCH format 0 and 30 kHz SCS

Number	Number of	Propagation conditions	Number	Channel bandwidth / SNR (dB)
of TX antennas	demodulation branches	and correlation matrix (annex J)	of OFDM symbols	10 MHz	20 MHz	40 MHz	100 MHz
1	2	TDLC300-100 Low	1	10.4	10.4	10.1	9.8
			2	4.8	4.2	4.4	4.1

8.1.3.1.5.2 Test requirement for IAB type 2-O

The fraction of falsely detected ACKs shall be less than 1% and the fraction of correctly detected ACKs shall be larger than 99% for the SNR listed in table 8.1.3.1.5.2-1 and in table 8.1.3.1.5.2-2.

Table 8.1.3.1.5.2-1: Test requirements for PUCCH format 0 and 60 kHz SCS

Number of TX	Number of demodulation	Propagation conditions and correlation matrix (annex J)	Number of OFDM	Channel bandwidth / SNR (dB)
antennas	branches		symbols	50 MHz	100 MHz
1	2	TDLA30-300 Low	1	9.9	9.6
			2	4.8	4.6

Table 8.1.3.1.5.2-2: Test requirements for PUCCH format 0 and 120 kHz SCS

Number of TX	Number of demodulation	Propagation conditions and correlation matrix (annex J)	Number of OFDM	Channel bandwidth / SNR (dB)
antennas	branches		symbols	50 MHz	100 MHz	200 MHz
1	2	TDLA30-300 Low	1	10.1	9.8	10.3
			2	4.7	4.4	4.6

8.1.3.2 Performance requirements for PUCCH format 1

8.1.3.2.1 NACK to ACK detection

8.1.3.2.1.1 Definition and applicability

The performance requirement of PUCCH format 1 for NACK to ACK detection is determined by the two parameters: probability of false detection of the ACK and the NACK to ACK detection probability. The performance is measured by the required SNR at probability of the NACK to ACK detection equal to 0.1% or less. The probability of false detection of the ACK shall be 0.01 or less.

The probability of false detection of the ACK is defined as a conditional probability of erroneous detection of the ACK at particular bit position when input is only noise. Each false bit detection is counted as one error.

The NACK to ACK detection probability is the probability of detecting an ACK bit when an NACK bit was sent on particular bit position. Each NACK bit erroneously detected as ACK bit is counted as one error. Erroneously detected NACK bits in the definition do not contain the NACK bits which are mapped from DTX, i.e. NACK bits received when DTX is sent should not be considered.

The transient period as specified in TS 38.101-1 [16] and TS 38.101-2 [17] clause 6.3.3.1 is not taken into account for performance requirement testing, where the RB hopping is symmetric to the CC center, i.e. intra-slot frequency hopping is enabled.

Which specific test(s) are applicable to IAB-DU is based on the test applicability rules defined in clause 8.1.1.3.3.

8.1.3.2.1.2 Minimum Requirement

For BS type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.1.3.

For BS type 2-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.2.3.

8.1.3.2.1.3 Test Purpose

The test shall verify the receiver’s ability not to falsely detect NACK bits as ACK bits under multipath fading propagation conditions for a given SNR.

8.1.3.2.1.4 Method of test

8.1.3.2.1.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.2.1.4.2 Procedure

1) Place the IAB-DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB-DU with the test system.

3) Set the IAB-DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.2.1.4.2-1.

Table 8.1.3.2.1.4.2-1: Test parameters

Parameter	Test
Number of information bits	2
Number of PRBs	1
Number of symbols	14
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (nrofPRBs – 1)
Group and sequence hopping	neither
Hopping ID	0
Initial cyclic shift	0
First symbol	0
Index of orthogonal cover code (timeDomainOCC)	0
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.3.2.1.5.1 and 8.1.3.2.1.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB-DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.2.1.4.2-2.

Table 8.1.3.2.1.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60 kHz	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 47.52 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) The signal generator sends random codeword from applicable codebook, in regular time periods. The following statistics are kept: the number of ACK bits detected in the idle periods and the number of NACK bits detected as ACK.

8.1.3.2.1.5 Test Requirement

8.1.3.2.1.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACK bits shall be less than 1 % and the fraction of NACK bits falsely detected as ACK shall be less than 0.1 % for the SNR listed in tables 8.1.3.2.1.5.1-1 and table 8.1.3.2.1.5.1-2.

Table 8.1.3.2.1.5.1-1: Required SNR for PUCCH format 1 with 15 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	10 MHz	20 MHz
1	2	TDLC300-100 Low	-3.0	-3.0

Table 8.1.3.2.1.5.1-2: Required SNR for PUCCH format 1 with 30 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	10 MHz	20 MHz	40 MHz	100 MHz
1	2	TDLC300-100 Low	-2.2	-2.7	-3.3	-2.9

8.1.3.2.1.5.2 Test requirement for IAB type 2-O

Table 8.1.3.2.1.5.2-1: Required SNR for PUCCH format 1 with 60 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	50 MHz	100 MHz
1	2	TDLA30-300 Low	-0.6	-3.6

Table 8.1.3.2.1.5.2-2: Required SNR for PUCCH format 1 with 120 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	50 MHz	100 MHz	200 MHz
1	2	TDLA30-300 Low	-3.3	-3.3	-2.4

8.1.3.2.2 ACK missed detection

8.1.3.2.2.1 Definition and applicability

The performance requirement of PUCCH format 1 for ACK missed detection is determined by the two parameters: probability of false detection of the ACK and the probability of detection of ACK. The performance is measured by the required SNR at probability of detection equal to 0.99. The probability of false detection of the ACK shall be 0.01 or less.

The probability of false detection of the ACK is defined as a conditional probability of erroneous detection of the ACK when input is only noise.

The probability of detection of ACK is defined as conditional probability of detection of the ACK when the signal is present.

Which specific test(s) are applicable to IAB DU is based on the test applicability rules defined in clause 8.1.1.3.3.

8.1.3.2.2.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [7], clause 11.1.3.1.3.

For IAB type 2-O, the minimum requirement is in TS 38.174 [7], clause 11.1.3.2.3.

8.1.3.2.2.3 Test Purpose

The test shall verify the receiver’s ability to detect ACK bits under multipath fading propagation conditions for a given SNR.

8.1.3.2.2.4 Method of test

8.1.3.2.2.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.2.2.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

4) Connect the IAB DU tester generating the wanted signal, multipath fading simulators and AWGN generators to a test antenna via a combining network in OTA test setup, as shown in annex E.3. Each of the demodulation branch signals should be transmitted on one polarization of the test antenna(s).

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.2.2.4.2-1.

Table 8.1.3.2.2.4.2-1: Test Parameters

Parameter	Test
Number of information bits	2
Number of PRBs	1
Number of symbols	14
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (nrofPRBs – 1)
Group and sequence hopping	neither
Hopping ID	0
Initial cyclic shift	0
First symbol	0
Index of orthogonal cover code (timeDomainOCC)	0
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.2.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.2.2.5.1 and 8.1.3.2.2.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.2.2.4.2-2.

Table 8.1.3.2.2.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60 kHz	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 47.52 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm / 47.52 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) The tester sends random codewords from applicable codebook, in regular time periods. The following statistics are kept: the number of ACK bits falsely detected in the idle periods and the number of missed ACK bits. Each falsely detected ACK bit in the idle periods is accounted as one error for the statistics of false ACK detection, and each missed ACK bit is accounted as one error for the statistics of missed ACK detection.

Note that the procedure described in this clause for ACK missed detection has the same condition as that described in clause 8.1.3.2.1.4.2 for NACK to ACK detection. Both statistics are measured in the same testing.

8.1.3.2.2.5 Test Requirement

8.1.3.2.2.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACK bits shall be less than 1% and the fraction of correctly detected ACK bits shall be larger than 99% for the SNR listed in tables 8.1.3.2.2.5-1 and table 8.1.3.2.2.5-2.

Table 8.1.3.2.2.5.1-1: Required SNR for PUCCH format 1 with 15 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	10 MHz	20 MHz
1	2	TDLC300-100 Low	-3.8	-4.4

Table 8.1.3.2.2.5.1-2: Required SNR for PUCCH format 1 with 30 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	10 MHz	20 MHz	40 MHz	100 MHz
1	2	TDLC300-100 Low	-3.3	-3.8	-3.8	-3.6

8.1.3.2.2.5.2 Test requirement for IAB type 2-O

The fraction of falsely detected ACK bits shall be less than 1% and the fraction of correctly detected ACK bits shall be larger than 99% for the SNR listed in tables 8.1.3.2.2.5.2-1 and table 8.1.3.2.2.5.2-2.

Table 8.1.3.2.2.5.2-1: Required SNR for PUCCH format 1 with 60 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	50 MHz	100 MHz
1	2	TDLA30-300 Low	-3.3	-3.6

Table 8.1.3.2.2.5.2-2: Required SNR for PUCCH format 1 with 120 kHz SCS

Number of TX	Number of Demodulation	Propagation conditions and	Channel bandwidth / SNR (dB)
antennas	Branches	correlation matrix (annex J)	50 MHz	100 MHz	200 MHz
1	2	TDLA30-300 Low	-4.1	-4.0	-4.0

8.1.3.3 Performance requirements for PUCCH format 2

8.1.3.3.1 ACK missed detection performance requirements

8.1.3.3.1.1 Definition and applicability

The performance requirement of PUCCH format 2 for ACK missed detection is determined by the two parameters: probability of false detection of the ACK and the probability of detection of ACK on the wanted signal. The performance is measured by the required SNR at probability of detection equal to 0.99. The probability of false detection of the ACK shall be 0.01 or less.

The probability of false detection of the ACK is defined as a probability of erroneous detection of the ACK when input is only noise.

The probability of detection of ACK is defined as probability of detection of the ACK when the signal is present.

Which specific test(s) are applicable to IAB DU is based on the test applicability rules defined in clause 8.1.1.3.

8.1.3.3.1.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2] clause 11.1.3.1.4.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2] clause 11.1.3.2.4.

8.1.3.3.1.3 Test Purpose

The test shall verify the receiver’s ability to detect ACK bits under multipath fading propagation conditions for a given SNR.

8.1.3.3.1.4 Method of test

8.1.3.3.1.4.1 Initial Conditions

Test environment: Normal, see clause B.2.

RF channels to be tested for single carrier; M; see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table.4.6-1).

8.1.3.3.1.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.3.1.4.2-1.

Table 8.1.3.3.1.4.2-1: Test parameters

Parameter	Value
Modulation order	QPSK
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	N/A
First PRB after frequency hopping	The largest PRB index – (Number of PRBs-1)
Number of PRBs	4
Number of symbols	1
The number of UCI information bits	4
First symbol	13
DM-RS sequence generation	N_ID⁰=0
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.3.1.5.1 and 8.1.3.3.1.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.3.1.4.2-2.

Table 8.1.3.3.1.4.2-2: AWGN power level at the BS input

IAB type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 -Δ_OTAREFSENSdBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60 kHz	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 47.52MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
	120 kHz	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS}= -3 dB as declared in clause 7.1, since the OTA REFSENS receiver target reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) The tester sends a test pattern with pattern outlined in figure 8.1.3.3.1.4.2-1. The following statistics are kept: the number of ACK bits detected in the idle periods and the number of missed ACKs.

Figure 8.1.3.3.1.4.2-1: Test signal pattern for PUCCH format 2 demodulation tests

8.1.3.3.1.5 Test Requirement

8.1.3.3.1.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACKs shall be less than 1% and the fraction of correctly detected ACKs shall be larger than 99% for the SNR listed in table 8.1.3.3.1.5.1-1 and table 8.1.3.3.1.5.1-2.

Table 8.1.3.3.1.5.1-1: Required SNR for PUCCH format 2 with 15 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	10 MHz	20 MHz
1	2	TDLC300-100 Low	6.2	6.5

Table 8.1.3.3.1.5.1-2: Required SNR for PUCCH format 2 with 30 kHz SCS

Number of	Number of	Propagation	Channel bandwidth/ SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	10MHz	20MHz	40MHz	100MHz
1	2	TDLC300-100 Low	6.1	6.2	6.1	6.3

8.1.3.3.1.5.2 Test requirement for IAB type 2-O

The fraction of falsely detected ACKs shall be less than 1% and the fraction of correctly detected ACKs shall be larger than 99% for the SNR listed in table 8.1.3.3.1.5.2-1 and table 8.1.3.3.1.5.2.-2.

Table 8.1.3.3.1.5.2-1: Required SNR for PUCCH format 2 with 60 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	50 MHz	100 MHz
1	2	TDLA30-300 Low	7.3	7.8

Table 8.1.3.3.1.5.2-2: Required SNR for PUCCH format 2 with 120 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	50 MHz	100 MHz	200 MHz
1	2	TDLA30-300 Low	7.2	6.9	7.2

8.1.3.3.2 UCI BLER performance requirements

8.1.3.3.2.1 Definition and applicability

The UCI block error probability is defined as the probability of incorrectly decoding the UCI information when the UCI information is sent. The UCI information does not contain CSI part 2.

Which specific test(s) are applicable to IAB DU is based on the test applicability rules defined in clause 8.1.2.

8.1.3.3.2.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2] clause 11.1.3.1.4.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2] clause 11.1.3.2.4.

8.1.3.3.2.3 Test Purpose

The test shall verify the receiver’s ability to detect UCI under multipath fading propagation conditions for a given SNR.

8.1.3.3.2.4 Method of test

8.1.3.3.2.4.1 Initial Conditions

Test environment: Normal, see clause B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.3.2.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

4) Connect the IAB DU tester generating the wanted signal, multipath fading simulators and AWGN generators to a test antenna via a combining network in OTA test setup, as shown in annex E.3. Each of the demodulation branches signals should be transmitted on each polarization of the test antenna(s).

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.3.2.4.2-1.

Table 8.1.3.3.2.4.2-1: Test parameters

Parameter	Value
Modulation order	QPSK
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (Number of PRBs-1)
Number of PRBs	9
Number of symbols	2
The number of UCI information bits	22
First symbol	12
DM-RS sequence generation	N_ID⁰=0
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.3.2.5.1 and 8.1.3.3.2.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.3.3.2.4.2-2.

Table 8.1.3.3.2.4.2-2: AWGN power level at the BS input

IAB type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 -Δ_OTAREFSENS dBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
IAB type 2-O	60 kHz	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 47.52MHz
		100	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
	120 kHz	50	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M} + Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS}= -3 dB as declared in clause 7.1. NOTE 3: EIS_{REFSENS_50M} as declared in D.28 in table 4.6-1.

8) The tester sends a test pattern with the pattern outlined in figure 8.1.3.3.2.4.2-1. The following statistics are kept: the number of incorrectly decoded UCI.

Figure 8.1.3.3.2.4.2-1: Test signal pattern for PUCCH format 2 demodulation tests

8.1.3.3.2.5 Test Requirement

8.1.3.3.2.5.1 Test requirement for IAB type 1-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.3.2.5.1-1 and table 8.1.3.3.2.5.1-2.

Table 8.1.3.3.2.5.1-1: Required SNR for PUCCH format 2 with 15 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	10 MHz	20 MHz
1	2	TDLC300-100 Low	1.4	1.8

Table 8.1.3.3.2.5.1-2: Required SNR for PUCCH format 2 with 30 kHz SCS

Number of	Number of	Propagation	Channel bandwidth/ SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	10MHz	20MHz	40MHz	100MHz
1	2	TDLC300-100 Low	1.1	1.7	1.0	0.9

8.1.3.3.2.5.2 Test requirement for IAB type 2-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.3.2.5.2-1 and table 8.1.3.3.2.5.2-2.

Table 8.1.3.3.2.5.2-1: Required SNR for PUCCH format 2 with 60 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	50 MHz	100 MHz
1	2	TDLA30-300 Low	3.2	1.7

Table 8.1.3.3.2.5.2-2: Required SNR for PUCCH format 2 with 120 kHz SCS

Number of	Number of	Propagation	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	50 MHz	100 MHz	200 MHz
1	2	TDLA30-300 Low	1.8	1.8	1.7

8.1.3.4 Performance requirements for PUCCH format 3

8.1.3.4.1 Definition and applicability

The performance is measured by the required SNR at UCI block error probability not exceeding 1%.

The UCI block error probability is defined as the conditional probability of incorrectly decoding the UCI information when the UCI information is sent. The UCI information does not contain CSI part 2.

Which specific test(s) are applicable to IAB DU is based on the test applicability rules defined in clause 8.1.1.3.

8.1.3.4.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [7], clause 11.1.3.1.5.

For IAB type 2-O, the minimum requirement is in TS 38.174 [7], clause 11.1.3.2.5.

8.1.3.4.3 Test Purpose

The test shall verify the receiver’s ability to detect UCI under multipath fading propagation conditions for a given SNR.

8.1.3.4.4 Method of test

8.1.3.4.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested:

– OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.4.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.4.4.2-1.

Table 8.1.3.4.4.2-1: Test parameters

Parameter	Test 1	Test 2
Modulation order	QPSK
Cyclic prefix	normal
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (Number of PRBs -1)
Group and sequence hopping	neither
Hopping ID	0
Number of PRBs	1	3
Number of symbols	14	4
The number of UCI information bits	16	16
First symbol	0	0

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB-DU receiver is as specified in clause 8.1.3.4.5.1 and 8.1.3.4.5.2 for IAB type 1-O and IAB type 2-O respectively, and the SNR at the IAB-DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.4.4.2-2.

Table 8.1.3.4.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	10	-80.3 – Δ_OTAREFSENS dBm / 9.36MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08MHz
	30	10	-80.6 – Δ_OTAREFSENS dBm / 8.64MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm/ 47.52MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm/ 95.04 MHz
	120	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm/ 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm/ 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm/ 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS receiver target reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M}as declared in D.28 in table 4.6-1.

8.1.3.4.5 Test Requirement

8.1.3.4.5.1 Test requirement for IAB type 1-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.4.5.1-1 and table 8.1.3.4.5.1-2.

Table 8.1.3.4.5.1-1: Required SNR for PUCCH format 3 with 15 kHz SCS

Test Number	Number of TX	Number of	Propagation conditions	Additional DM-RS	Channel bandwidth / SNR (dB)
	antennas	demodulation branches	and correlation matrix (annex J)	configuration	10 MHz	20 MHz
1	1	2	TDLC300-100 Low	No additional DM-RS	1.7	0.9
				Additional DM-RS	1.1	0.5
2	1	2	TDLC300-100 Low	No additional DM-RS	2.8	2.6

Table 8.1.3.4.5.1-2: Required SNR for PUCCH format 3 with 30 kHz SCS

Test Number	Number of TX	Number of	Propagation conditions	Additional DM-RS	Channel bandwidth / SNR (dB)
	antennas	demodulation branches	and correlation matrix (annex J)	configuration	10 MHz	20 MHz	40 MHz	100 MHz
1	1	2	TDLC300-100 Low	No additional DM-RS	1.5	1.2	1.2	1.5
				Additional DM-RS	1.1	0.9	0.6	0.7
2	1	2	TDLC300-100 Low	No additional DM-RS	2.4	2.6	2.6	2.1

8.1.3.4.5.2 Test requirement for IAB type 2-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.4.5.2-1 and table 8.1.3.4.5.2-2.

Table 8.1.3.4.5.2-1: Required SNR for PUCCH format 3 with 60 kHz SCS

Test Number	Number of TX	Number of	Propagation conditions	Additional DM-RS	Channel bandwidth / SNR (dB)
	antennas	demodulation branches	and correlation matrix (annex J)	configuration	50 MHz	100 MHz
1	1	2	TDLA30-300 Low	No additional DM-RS	2.2	1.3
				Additional DM-RS	1.9	1.5
2	1	2	TDLA30-300 Low	No additional DM-RS	3.6	3.0

Table 8.1.3.4.5.2-2: Required SNR for PUCCH format 3 with 120 kHz SCS

Test	Number	Number of	Propagation	Additional	Channel bandwidth / SNR (dB)
Number	of TX antennas	demodulation branches	conditions and correlation matrix (annex J)	DM-RS configuration	50 MHz	100 MHz	200 MHz
1	1	2	TDLA30-300 Low	No additional DM-RS	2.0	1.3	1.3
				Additional DM-RS	1.9	2.0	1.5
2	1	2	TDLA30-300 Low	No additional DM-RS	1.7	3.5	2.0

8.1.3.5 Performance requirements for PUCCH format 4

8.1.3.5.1 Definition and applicability

The performance is measured by the required SNR at UCI block error probability not exceeding 1%.

Which specific test(s) are applicable to BS is based on the test applicability rules defined in clause 8.1.1.3.3.

8.1.3.5.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.1.6.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.2.6.

8.1.3.5.3 Test Purpose

The test shall verify the receiver’s ability to detect UCI under multipath fading propagation conditions for a given SNR.

8.1.3.5.4 Method of test

8.1.3.5.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested:

– OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.3.5.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.4.4.2-1.

Table 8.1.3.5.4.2-1: Test parameters

Parameter	Value
Modulation order	QPSK
Cyclic prefix	normal
First PRB prior to frequency hopping	0
Number of PRBs	1
Intra-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (Number of PRBs – 1)
Group and sequence hopping	neither
Hopping ID	0
Number of symbols	14
The number of UCI information bits	22
First symbol	0
Length of the orthogonal cover code	n2
Index of the orthogonal cover code	n0

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.5.5.1 and 8.1.3.5.5.2 for IAB type 1-O and IAB type 2-O respectively, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.5.4.2-2.

Table 8.1.3.5.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	10	-80.3 – Δ_OTAREFSENS dBm / 9.36MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08MHz
	30	10	-80.6 – Δ_OTAREFSENS dBm / 8.64MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm/ 47.52 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm/ 95.04 MHz
	120	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm/ 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm/ 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm/ 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS receiver target reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M}as declared in D.28 in table 4.6-1.

8.1.3.5.5 Test Requirement

8.1.3.5.5.1 Test requirement for IAB type 1-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.5.5.1-1 and table 8.1.3.5.5.1-2.

Table 8.1.3.5.5.1-1: Required SNR for PUCCH format 4 with 15 kHz SCS

Number of TX antennas	Number of demodulation	Propagation conditions and correlation matrix	Additional DM‑RS	Channel bandwidth / SNR (dB)
	branches	(annex J)	configuration	10 MHz	20 MHz
1	2	TDLC300-100 Low	No additional DM-RS	3.2	2.8
			Additional DM‑RS	3.0	2.4

Table 8.1.3.5.5.1-2: Required SNR for PUCCH format 4 with 30 kHz SCS

Number of	Number of	Propagation	Additional	Channel bandwidth / SNR (dB)
TX antennas	demodulation branches	conditions and correlation matrix (annex J)	DM‑RS configuration	10 MHz	20 MHz	40 MHz	100 MHz
1	2	TDLC300-100 Low	No additional DM-RS	3.7	3.4	3.7	3.4
			Additional DM‑RS	3.4	2.9	3.7	2.8

8.1.3.5.5.2 Test requirement for IAB type 2-O

The fraction of incorrectly decoded UCI is shall be less than 1% for the SNR listed in table 8.1.3.5.5.2-1 and table 8.1.3.5.5.2-2.

Table 8.1.3.5.5.2-1: Required SNR for PUCCH format 4 with 60 kHz SCS

Number of TX antennas	Number of demodulation	Propagation conditions and	Additional DM‑RS configuration	Channel bandwidth / SNR (dB)
	branches	correlation matrix (annex J)		50 MHz	100 MHz
1	2	TDLA30-300 Low	No additional DM-RS	3.6	3.3
			Additional DM-RS	3.7	4.1

Table 8.1.3.5.5.2-2: Required SNR for PUCCH format 4 with 120 kHz SCS

Number of TX	Number of demodulation	Propagation conditions and	Additional DM‑RS configuration	Channel bandwidth / SNR (dB)
antennas	branches	correlation matrix (annex J)		50 MHz	100 MHz	200MHz
1	2	TDLA30-300 Low	No additional DM-RS	3.4	3.4	4.1
			Additional DM-RS	4.2	4.4	3.8

8.1.3.6 Performance requirements for multi-slot PUCCH

8.1.3.6.1 Performance requirements for multi-slot PUCCH format 1

8.1.3.6.1.1 NACK to ACK detection

8.1.3.6.1.1.1 Definition and applicability

Which specific test(s) are applicable to IAB DU is based on the test applicability rules defined in clause 8.1.1.3.3.

8.1.3.6.1.1.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.1.7.

8.1.3.6.1.1.3 Test Purpose

8.1.3.6.1.1.4 Method of test

The test shall verify the receiver’s ability not to falsely detect NACK bits as ACK bits under multipath fading propagation conditions for a given SNR.

8.1.3.6.1.1.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier: M; see clause 4.9.1

Direction to be tested: OTA REFSENS receiver target reference direction (D.54).

8.1.3.6.1.1.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.6.1.1.4.2-1.

Table 8.1.3.6.1.1.4.2-1: Test Parameters for multi-slot PUCCH format 1

Parameter	Test
Number of information bits	2
Number of PRBs	1
Number of symbols	14
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	disabled
Inter-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (nrofPRBs – 1)
Group and sequence hopping	neither
Hopping ID	0
Initial cyclic shift	0
First symbol	0
Index of orthogonal cover code (timeDomainOCC)	0
Number of slots for PUCCH repetition	2
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.6.1.1.5.1 for IAB type 1-O, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.6.1.1.4.2-2.

Table 8.1.3.6.1.1.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
NOTE: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1.

8) The tester sends random codeword from applicable codebook, in regular time periods. The following statistics are kept: the number of ACK bits detected in the idle periods and the number of NACK bits detected as ACK.

8.1.3.6.1.1.5 Test Requirement

8.1.3.6.1.1.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACK bits shall be less than 1% and the fraction of NACK bits falsely detected as ACK shall be less than 0.1% for the SNR listed in table 8.1.3.6.1.1.5.1-1.

Table 8.1.3.6.1.1.5.1-1: Required SNR for multi-slot PUCCH format 1 with 30 kHz SCS

Number of TX	Number of RX	Propagation conditions and correlation matrix	Channel bandwidth (MHz) / SNR (dB)
antennas	antennas	(Annex J)	40 MHz
1	2	TDLC-300-100 Low	-5.7

8.1.3.6.1.2 ACK missed detection

8.1.3.6.1.2.1 Definition and applicability

The probability of false detection of the ACK is defined as a conditional probability of erroneous detection of the ACK when input is only noise.

The probability of detection of ACK is defined as conditional probability of detection of the ACK when the signal is present.

8.1.3.6.1.2.2 Minimum Requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2], clause 11.1.3.1.7.

8.1.3.6.1.2.3 Test Purpose

The test shall verify the receiver’s ability to detect ACK bits under multipath fading propagation conditions for a given SNR.

8.1.3.6.1.2.4 Method of test

8.1.3.6.1.2.4.1 Initial Conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier (SC): M; see clause 4.9.1

Direction to be tested: OTA REFSENS receiver target reference direction (D.54).

8.1.3.6.1.2.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to TS 38.211 [7], and according to additional test parameters listed in table 8.1.3.6.1.2.4.2-1.

Table 8.1.3.6.1.2.4.2-1: Test Parameters for multi-slot PUCCH format 1

Parameter	Test
Number of information bits	2
Number of PRBs	1
Number of symbols	14
First PRB prior to frequency hopping	0
Intra-slot frequency hopping	disabled
Inter-slot frequency hopping	enabled
First PRB after frequency hopping	The largest PRB index – (nrofPRBs – 1)
Group and sequence hopping	neither
Hopping ID	0
Initial cyclic shift	0
First symbol	0
Index of orthogonal cover code (timeDomainOCC)	0
Number of slots for PUCCH repetition	2
Cyclic prefix	normal

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the test signal mean power so the calibrated radiated SNR value at the IAB DU receiver is as specified in clause 8.1.3.6.1.2.5.1 for IAB type 1-O, and that the SNR at the IAB DU receiver is not impacted by the noise floor.

The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.3.6.1.2.4.2-2.

Table 8.1.3.6.1.2.4.2-2: AWGN power level at the BS input

IAB type	Subcarrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15 kHz	10	-80.3 – Δ_OTAREFSENS dBm / 9.36 MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08 MHz
	30 kHz	10	-80.6 – Δ_OTAREFSENS dBm / 8.64 MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36 MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16 MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28 MHz
NOTE: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1.

8) The tester sends a test pattern with the pattern outlined in figure 8.1.3.6.1.2.4.2-1. The following statistics are kept: the number of ACKs detected in the idle periods and the number of missed ACKs.

Figure 8.1.3.6.1.2.4.2-1: Test signal pattern for PUCCH format 1 demodulation tests

8.1.3.6.1.2.5 Test Requirement

8.1.3.6.1.2.5.1 Test requirement for IAB type 1-O

The fraction of falsely detected ACK bits shall be less than 1% and the fraction of correctly detected ACK bits shall be larger than 99% for the SNR listed in table 8.1.3.6.1.2.5.1-1.

Table 8.1.3.6.1.2.5.1-1: Required SNR for multi-slot PUCCH format 1 with 30 kHz SCS

Number of TX	Number of RX	Propagation conditions and correlation matrix	Channel bandwidth (MHz) / SNR (dB)
antennas	antennas	(Annex G)	40 MHz
1	2	TDLC-300-100 Low	-7.0

8.1.4 Performance requirements for PRACH

8.1.4.1 PRACH false alarm probability and missed detection

8.1.4.1.1 Definition and applicability

The performance requirement of PRACH for preamble detection is determined by the two parameters: total probability of false detection of the preamble (Pfa) and the probability of detection of preamble (Pd). The performance is measured by the required SNR at probability of detection, Pd of 99%. Pfa shall be 0.1% or less.

Pfa is defined as a conditional total probability of erroneous detection of the preamble (i.e. erroneous detection from any detector) when input is only noise.

Pd is defined as conditional probability of detection of the preamble when the signal is present. The erroneous detection consists of several error cases – detecting only different preamble(s) than the one that was sent, not detecting any preamble at all, or detecting the correct preamble but with the out-of-bounds timing estimation value. For AWGN, TDLC300-100 and TDLA30-300, a timing estimation error occurs if the estimation error of the timing of the strongest path is larger than the time error tolerance values given in table 8.1.4.1.1-1.

Table 8.1.4.1.1-1: Time error tolerance for AWGN, TDLC300-100 and TDLA30-300

PRACH	PRACH SCS	Time error tolerance
preamble	(kHz)	AWGN	TDLC300-100	TDLA30-300
0	1.25	1.04 us	2.55 us	N/A
A1, A2, A3, B4, C0, C2	15	0.52 us	2.03 us	N/A
	30	0.26 us	1.77 us	N/A
	60 (FR2)	0.13 us	N/A	0.28 us
	120	0.07 us	N/A	0.22 us

The test preambles for normal mode are listed in table A.2.5-1 and A.2.5-2.

Which specific test(s) are applicable to BS is based on the test applicability rules defined in clause 8.1.1.3.4.

8.1.4.1.2 Minimum requirement

For IAB type 1-O, the minimum requirement is in TS 38.174 [2] clause 11.1.4.1.1 and 11.1.4.1.2.

For IAB type 2-O, the minimum requirement is in TS 38.174 [2] clause 11.1.4.2.1 and 11.1.4.2.2.

8.1.4.1.3 Test purpose

The test shall verify the receiver’s ability to detect PRACH preamble under static conditions and multipath fading propagation conditions for a given SNR.

8.1.4.1.4 Method of test

8.1.4.1.4.1 Initial conditions

Test environment: Normal, see clause B.2.

RF channels to be tested: for single carrier: M; see clause 4.9.1.

Direction to be tested: OTA REFSENS receiver target reference direction (see D.54 in table 4.6-1).

8.1.4.1.4.2 Procedure

1) Place the IAB DU with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex E.3.

2) Align the manufacturer declared coordinate system orientation of the IAB DU with the test system.

3) Set the IAB DU in the declared direction to be tested.

5) The characteristics of the wanted signal shall be configured according to the corresponding UL reference measurement channel defined in annex A and the test parameter msg1-FrequencyStart is set to 0.

6) The multipath fading emulators shall be configured according to the corresponding channel model defined in annex J.

7) Adjust the AWGN generator, according to the SCS and channel bandwidth. The power level for the transmission may be set such that the AWGN level at the RIB is equal to the AWGN level in table 8.1.4.1.4.2-1.

Table 8.1.4.1.4.2-1: AWGN power level at the BS input

IAB type	Sub-carrier spacing (kHz)	Channel bandwidth (MHz)	AWGN power level
IAB type 1-O	15	10	-80.3 – Δ_OTAREFSENS dBm / 9.36MHz
		20	-77.2 – Δ_OTAREFSENS dBm / 19.08MHz
	30	10	-80.6 – Δ_OTAREFSENS dBm / 8.64MHz
		20	-77.4 – Δ_OTAREFSENS dBm / 18.36MHz
		40	-74.2 – Δ_OTAREFSENS dBm / 38.16MHz
		100	-70.1 – Δ_OTAREFSENS dBm / 98.28MHz
IAB type 2-O	60	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 47.52 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
	120	50	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 15 dBm / 46.08 MHz
		100	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 18 dBm / 95.04 MHz
		200	EIS_{REFSENS_50M}+ Δ_{FR2_REFSENS} + 21 dBm / 190.08 MHz
NOTE 1: Δ_OTAREFSENS as declared in D.53 in table 4.6-1 and clause 7.1. NOTE 2: Δ_{FR2_REFSENS} = -3 dB as described in clause 7.1, since the OTA REFSENS receiver target reference direction (as declared in D.54 in table 4.6-1) is used for testing. NOTE 3: EIS_{REFSENS_50M}as declared in D.28 in table 4.6-1.

8) Adjust the frequency offset of the test signal according to table 8.1.4.1.5.1-1 or 8.1.4.1.5.1-2 or 8.1.4.1.5.1-3 or 8.1.4.1.6.1-1 or 8.1.4.1.6.1-2 or 8.1.4.1.6.1-3 or 8.1.4.1.6.1-4 or 8.1.4.1.5.2-1 or 8.1.4.1.5.2-2.

9) Adjust the equipment so that the SNR specified in table 8.1.4.1.5.1-1 or 8.1.4.1.5.1-2 or 8.1.4.1.5.1-3 or 8.1.4.1.6.1-1 or 8.1.4.1.6.1-2 or 8.1.4.1.6.1-3 or 8.1.4.1.6.1-4 or 8.1.4.1.5.2-1 or 8.1.4.1.5.2-2 is achieved at the BS input during the PRACH preambles.

10) The test signal generator sends a preamble and the receiver tries to detect the preamble. This pattern is repeated as illustrated in figure 8.1.4.1.4.2-1. The preambles are sent with certain timing offsets as described below. The following statistics are kept: the number of preambles detected in the idle period and the number of missed preambles.

Figure 8.1.4.1.4.2-1: PRACH preamble test pattern

The timing offset base value for PRACH preamble format 0 is set to 50% of Ncs. This offset is increased within the loop, by adding in each step a value of 0.1us, until the end of the tested range, which is 0.9us. Then the loop is being reset and the timing offset is set again to 50% of Ncs. The timing offset scheme for PRACH preamble format 0 is presented in Figure 8.1.4.1.4.2-2.

Figure 8.1.4.1.4.2-2: Timing offset scheme for PRACH preamble format 0

The timing offset base value for PRACH preamble format A1, A2, A3, B4, C0 and C2 is set to 0. This offset is increased within the loop, by adding in each step a value of 0.1us, until the end of the tested range, which is 0.8us. Then the loop is being reset and the timing offset is set again to 0. The timing offset scheme for PRACH preamble format A1, A2, A3, B4, C0 and C2 is presented in Figure 8.1.4.1.4.2-3.

Figure 8.1.4.1.4.2-3: Timing offset scheme for PRACH preamble format A1, A2, A3, B4, C0 and C2

8.1.4.1.5 Test requirement for Normal Mode

8.1.4.1.5.1 Test requirement for IAB type 1-O

Pfa shall not exceed 0.1%. Pd shall not be below 99% for the SNRs in tables 8.1.4.1.5.1-1 to 8.1.4.1.5.1-3.

Table 8.1.4.1.5.1-1: PRACH missed detection test requirements for Normal Mode, 1.25 kHz SCS

Number of TX	Number of demodulation	Propagation conditions and	Frequency offset	SNR (dB)
antennas	branches	correlation matrix (annex J)		Burst format 0
1	2	AWGN	0	-14.2
		TDLC300-100 Low	400 Hz	-6.0

Table 8.1.4.1.5.1-2: PRACH missed detection test requirements for Normal Mode, 15 kHz SCS

Number	Number of	Propagation	Frequency	SNR (dB)
of TX antennas	demodulation branches	conditions and correlation matrix (annex J)	offset	Burst format A1	Burst format A2	Burst format A3	Burst format B4	Burst format C0	Burst format C2
1	2	AWGN	0	-9.0	-12.3	-13.9	-16.5	-6.0	-12.2
		TDLC300-100 Low	400 Hz	-1.5	-4.2	-6.0	-8.2	1.4	-4.3

Table 8.1.4.1.5.1-3: PRACH missed detection test requirements for Normal Mode, 30 kHz SCS

Number	Number of	Propagation	Frequency	SNR (dB)
of TX antennas	demodulation branches	conditions and correlation matrix (annex J)	offset	Burst format A1	Burst format A2	Burst format A3	Burst format B4	Burst format C0	Burst format C2
1	2	AWGN	0	-8.8	-11.7	-13.5	-16.2	-5.8	-11.6
		TDLC300-100 Low	400 Hz	-2.2	-5.1	-6.8	-9.3	0.7	-5.0

8.1.4.1.5.2 Test requirement for IAB type 2-O

Pfa shall not exceed 0.1%. Pd shall not be below 99% for the SNRs in tables 8.1.4.1.5.2-1 to 8.1.4.1.5.2-2.

Table 8.1.4.1.5.2-1: PRACH missed detection test requirements for Normal Mode, 60 kHz SCS

Number	Number of	Propagation	Frequency	SNR (dB)
of TX antennas	demodulation branches	conditions and correlation matrix (annex J)	offset	Burst format A1	Burst format A2	Burst format A3	Burst format B4	Burst format C0	Burst format C2
1	2	AWGN	0	-8.6	-11.6	-13.2	-15.5	-5.7	-11.5
		TDLA30-300 Low	4000 Hz	-1.0	-3.2	-4.2	-6.3	1.7	-3.3

Table 8.1.4.1.5.2-2: PRACH missed detection test requirements for Normal Mode, 120 kHz SCS

Number	Number of	Propagation	Frequency	SNR (dB)
of TX antennas	demodulation branches	conditions and correlation matrix (annex J)	offset	Burst format A1	Burst format A2	Burst format A3	Burst format B4	Burst format C0	Burst format C2
1	2	AWGN	0	-8.4	-11.2	-13.0	-15.5	-5.5	-11.1
		TDLA30-300 Low	4000 Hz	-1.1	-3.8	-5.2	-6.9	1.8	-3.6